CN104879342A - Rear wheel steering hydraulic cylinder of automobile - Google Patents
Rear wheel steering hydraulic cylinder of automobile Download PDFInfo
- Publication number
- CN104879342A CN104879342A CN201510334902.3A CN201510334902A CN104879342A CN 104879342 A CN104879342 A CN 104879342A CN 201510334902 A CN201510334902 A CN 201510334902A CN 104879342 A CN104879342 A CN 104879342A
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- China
- Prior art keywords
- cylinder body
- end cap
- end cover
- piston
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Abstract
The invention provides a rear wheel steering hydraulic cylinder of an automobile. The hydraulic cylinder comprises a cylinder body I and a cylinder body II which are coaxially arranged, wherein an end cover I, and end cover II and a middle end cover are radially arranged at two ends of the cylinder body I and the cylinder body II as well as between the cylinder body I and the cylinder body II respectively; a piston rod penetrating through the end cover I, the middle end cover and the end cover II is arranged at axes of the cylinder body I and the cylinder body II. The hydraulic cylinder is characterized in that a piston is radially arranged on the piston rod between the end cover I and the middle end cover; bosses I are radially arranged on the piston rod between the middle end cover and the end cover II at intervals, an axially floating piston I is arranged on the piston rod between the bosses I and the middle end cover, and an axially floating piston II is arranged on the piston rod between the bosses I and the end cover II. Compared with the prior art, the rear wheel steering hydraulic cylinder of the automobile is simple in structure, safe and reliable and integrates steering, centering and locking functions.
Description
Technical field
The present invention relates to a kind of hydraulic steering cylinder, specifically relate to a kind of integrate turn to, in and the automobile back wheel hydraulic steering cylinder of locking function.
Background technique
Along with the development of heavy-duty car and military vehicle, vehicle load is increasing, and vehicle bridge quantity increases thereupon, and length of wagon also lengthens thereupon.Corresponding, the problems such as tire wear is serious, radius of turn is large, control stability is poor highlight further, through studying for a long period of time, inventor finds that rear-axle steering is the effective way addressed these problems.
Electrical-control hydraulic rear-axle steering is only compare for the medium-sized or heavy goods vehicles of tonnage more than more than 5 tons to have advantage; For car, electric controlling and engine driving is then best, wherein the flow of ECU (Electrical Control Unit) hydraulic control valve and direction just can the displacements of accurate hydraulic control steering cylinder piston rod, thisly by mechanical linkage, piston rod and rear-axle steering are saved arm and set up the mode contacted, achieve by the displacement of control piston bar accurately to control trailing wheel corner.But, when trailing wheel does not participate in turning to, with regard to need a set of have in and the mechanism of locking function to the reliability of guarantee system.
The name that the patent No. is " CN2005200997774 " is called that the Chinese utility model patent of " hydraulic centralizing cylinder of vehicle rear wheel steering mechanism " discloses a kind of hydraulic centralizing cylinder, the piston rod of this centralizing cylinder is set up by the steering knuckle arm of mechanical linkage and trailing wheel and is contacted, the positive stop lug boss in cylinder body is utilized to make piston rod remain on neutral position, thus make wheel lock at in-line position, even if wheel remains on meta.Steering cylinder and centralizing cylinder save arm simultaneously and set up and contact with rear-axle steering, both are relations of a kind of interlocking.Namely when steering situation, steering cylinder work, centralizing cylinder all connects oil sump tank into and out of hydraulic fluid port, makes centralizing cylinder piston rod be in servo-actuated state; In contrast, when centralizing cylinder works, steering cylinder all connects oil sump tank into and out of hydraulic fluid port, makes steering cylinder piston rod be in servo-actuated state.
This centralizing cylinder has good alignment function, but it does not have mechanical locking function, rely on the operating oil pressure in left and right two chambeies that piston rod is mediated, only belong to a kind of elasticity locked, when ground shock load is larger, the locked meeting of this hydraulic pressure causes piston rod movement on a small quantity, thus the meta that have impact on wheel keeps, and the stability that vehicle is travelled reduces; The locked chamber, left and right of oil hydraulic cylinder that needs of hydraulic pressure maintains operating oil pressure always in addition, centering all will be made to lose efficacy once pressure reduces or loses.
The patent No. is that the name of US5099939 (A) is called " MULTI-AXLE STEERING SYSTEM " " multi-wheel steering system " U.S. patent Nos disclose a kind of centralizing cylinder, this centralizing cylinder makes trailing wheel remain on in-line position when not participating in turning to, but also has set up mechanism lock locking mechanism.This locked machinery controls locked pin by hydraulic oil and stretches into or exit centralizing cylinder piston rod annular groove, thus realizes the locked of centering position and unblock.
But the complex structure of this centralizing cylinder and locked machinery, volume are comparatively large, and external hydraulic fluid port is more, and these shortcomings greatly reduce practicability.
In addition, steering cylinder and centralizing cylinder are all installed on the steering knuckle arm of left and right wheel by above-mentioned two patents respectively, and both set up contact by drag link.Such scheme makes the level of integration of complex structure, difficult arrangement, system very low.
Summary of the invention
In order to solve the problem, the invention provides a kind of automobile back wheel hydraulic steering cylinder, structure is simple, safe and reliable, and integrate turn to, in and locking function.
The object of the invention is to adopt following technical proposals to realize:
A kind of automobile back wheel hydraulic steering cylinder provided by the invention, described oil hydraulic cylinder comprises the coaxial cylinder body 1 that arranges and cylinder body 22, the two ends of described cylinder body 1 and cylinder body 22 and therebetween respectively radial direction end cap 1, end cap 24 and intermediate end cover 7 are set; Described cylinder body 1 is provided with the axle center of cylinder body 22 piston rod 5 running through described end cap 1, intermediate end cover 7 and end cap 24; Its improvements are: piston rod 5 radial direction between described end cap 1 and intermediate end cover 7 arranges piston 6; Piston rod 5 interval radial direction between described intermediate end cover 7 and end cap 24 arranges boss 1, piston rod 5 between described boss 1 and intermediate end cover 7 arranges the piston 1 of axial float, and the piston rod 5 between described boss 1 and end cap 24 is provided with the piston 29 of axial float.
First optimal technical scheme provided by the invention is, described cylinder body 22 wall arranges the boss two 14 corresponding with described boss 1, and between described boss 2 14, interval radial direction arranges pin-and-hole, arranges locked pin 10 in described pin-and-hole.
Second optimal technical scheme provided by the invention is, the confined space of described cylinder body 22, intermediate end cover 7 and piston 1 composition and the confined space of cylinder body 22, intermediate end cover 7 and piston 29 composition form oil pocket 3 17, and described cylinder body 22 wall arranges hydraulic fluid port 3 22 respectively near intermediate end cover 7 and end cap 24 place.
3rd optimal technical scheme provided by the invention is arrange gap between described boss 1 and boss 2 14, and the confined space of described cylinder body 22, piston 1, piston 29 and locked pin 10 composition forms oil pocket 4 18.
4th optimal technical scheme provided by the invention is, described locked pin 10 is " convex " font, and bottom it, top bilateral symmetry arranges the spring 11 be connected with boss 2 14; Described locked pin 10 inside is provided with L-type through hole, and the outlet of described through hole lays respectively at bottom it and sidewall.
5th optimal technical scheme provided by the invention is, described locked pin 10 top is provided with the end cap 12 be connected with cylinder body 22, described cylinder body 22 wall and end cap 12 are corresponding is respectively provided with the perforate be connected with described locked pin 10 through hole, forms hydraulic fluid port 5 24 after described perforate is connected with through hole.
6th optimal technical scheme provided by the invention is, the confined space of described locked pin 10, end cap 12 and cylinder body 22 composition forms oil pocket 5 19, and described end cap 12 wall is positioned at above locked pin 10 and arranges hydraulic fluid port 4 23.
7th optimal technical scheme provided by the invention is, the quantity of described locked pin 10 is 4, and interval is equidistantly arranged between described boss 2 14.
8th optimal technical scheme provided by the invention is, the confined space of described cylinder body 1, end cap 1 and piston 6 composition forms oil pocket 2 16, and described cylinder body 1 wall arranges hydraulic fluid port 2 21 near end cap 1 place.
9th optimal technical scheme provided by the invention is, the confined space of described cylinder body 1, intermediate end cover 7 and piston 6 composition forms oil pocket 1, and described cylinder body 1 wall arranges hydraulic fluid port 1 near intermediate end cover 7 place.
With immediate prior art ratio, the present invention has following beneficial effect:
1, automobile back wheel hydraulic steering cylinder provided by the invention, integrate turn to, in and locking function, overall substitute back axle drag link, realize rear-axle steering.
2, automobile back wheel hydraulic steering cylinder provided by the invention, structure is simple, easy for installation, is convenient to maintaining, has wide market prospects.
3, automobile back wheel hydraulic steering cylinder provided by the invention, relies on the spacing position centering realizing piston rod of boss two, has the advantages that centering position is accurate, be convenient to realization.
4, automobile back wheel hydraulic steering cylinder provided by the invention, the basis of hydraulic centralizing function increases mechanical locking function, overcome when ground shock load is large, the piston rod movement on a small quantity that the locked mode of hydroelastic system causes, affects the problem of vehicle run stability.
5, automobile back wheel hydraulic steering cylinder provided by the invention, effectively prevent reduction or the forfeiture of the operating oil pressure of oil pocket three when centering works.
Accompanying drawing explanation
Fig. 1: the structural representation of automobile back wheel hydraulic steering cylinder provided by the invention;
Fig. 2: the I-I place cross section structure schematic diagram of automobile back wheel hydraulic steering cylinder provided by the invention;
Fig. 3: the partial enlargement structural representation to the locked part of neutralization of automobile back wheel hydraulic steering cylinder provided by the invention;
Fig. 4: the structural representation of hydraulic steering cylinder when automobile back wheel provided by the invention turns to;
Fig. 5: the partial enlargement structural representation to the locked part of neutralization of hydraulic steering cylinder when automobile back wheel provided by the invention turns to;
Wherein: 1, cylinder body one; 2, cylinder body two; 3, end cap one; 4, end cap two; 5, piston rod; 6, piston; 7, intermediate end cover; 8, piston one; 9, piston two; 10, locked pin; 11, spring; 12, end cap; 13, boss one; 14, boss two; 15, oil pocket one; 16, oil pocket two; 17, oil pocket three; 18, oil pocket four; 19, oil pocket five; 20, hydraulic fluid port one; 21, hydraulic fluid port two; 22, hydraulic fluid port three; 23, hydraulic fluid port four; 24, hydraulic fluid port five.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present embodiment is for automobile back wheel hydraulic steering cylinder, as shown in Fig. 1 to 5, the automobile back wheel hydraulic steering cylinder that the embodiment of the present invention provides comprises cylinder body 1 and the cylinder body 22 of coaxial setting, weld intermediate end cover 7 between cylinder body 1 with cylinder body 22, the two ends of cylinder body 1 and cylinder body 22 are respectively by end cap 1 and the end cap 24 of being threaded.Install successively through the piston rod 5 of end cap 1, intermediate end cover 7 and end cap 24 in the axle center of cylinder body 1 and cylinder body 22, in the middle part of piston rod 5 between end cap 1 and intermediate end cover 7, radial direction arranges piston 6, in the middle part of piston rod 5 between end cap 24 and intermediate end cover 7, interval radial direction arranges boss 1, cylinder body 22 wall arranges the boss two 14 corresponding with boss 1, between boss 2 14, interval radial direction arranges pin-and-hole, arranges locked pin 10 in pin-and-hole.On piston rod 5 between intermediate end cover 7 and boss 1, radial direction arranges piston 1, and on the piston rod 5 between boss 1 and end cap 24, radial direction arranges piston 29.
Locked pin 10 is " convex " font, and bottom it, both sides, top arrange the spring 11 be connected with boss 2 14 respectively, and in locked pin 10, be provided with L-type through hole, the outlet of through hole lays respectively at bottom and the sidewall of locked pin 10; The quantity of locked pin 10 is 4, and interval is equidistantly arranged between boss 2 14; The end cap 12 be connected with cylinder body 22 is provided with at locked pin 10 top.
Wherein, the confined space of cylinder body 1, end cap 1 and piston 6 composition forms oil pocket 2 16, and cylinder body 1 wall arranges hydraulic fluid port 2 21 near end cap 1 place.By hydraulic fluid port 2 21 pairs of oil pockets 2 16 filling high pressure oils, piston rod 5 displacement to the right can be made, thus realize trailing wheel right-hand rotation.
Wherein, the confined space of cylinder body 1, intermediate end cover 7 and piston 6 composition forms oil pocket 1, and cylinder body 1 wall arranges hydraulic fluid port 1 near intermediate end cover 7 place.By hydraulic fluid port one 20 pairs of oil pockets 1 filling high pressure oils, piston rod 5 can be made to left dislocation, thus realize trailing wheel.
Wherein, the confined space of cylinder body 22, intermediate end cover 7 and piston 1 composition and the confined space of cylinder body 22, intermediate end cover 7 and piston 29 composition form oil pocket 3 17, and cylinder body 22 wall arranges hydraulic fluid port 3 22 respectively near intermediate end cover 7 and end cap 24 place.High pressure oil is injected to oil pocket 3 17 by hydraulic fluid port 3 22, piston 1 and piston 29 drive boss 1 to move to the neutral position of cylinder body 22 under the effect of high pressure oil, finally boss 2 14 spacing under, piston rod 5 is shifted onto cylinder body 22 neutral position, namely realizes the alignment function of trailing wheel.
Wherein, reserving gaps between boss 1 and boss 2 14, the confined space of cylinder body 22, piston 1, piston 29 and locked pin 10 composition forms oil pocket 4 18, cylinder body 22 wall and end cap 12 are corresponding is respectively provided with the perforate be connected with locked pin 10 through hole, forms hydraulic fluid port 5 24 after perforate is connected with through hole.By hydraulic fluid port 5 24 to oil pocket 4 18 filling high pressure oil, locked pin 10 radial direction is moved, exits the groove formed between boss 1, realize the unblock of piston rod 5 axial motion.
Wherein, the confined space of locked pin 10, end cap 12 and cylinder body 22 composition forms oil pocket 5 19, and end cap 12 wall is positioned at above locked pin 10 and arranges hydraulic fluid port 4 23.By hydraulic fluid port 4 23 to oil pocket 5 19 annotate high pressure oil, locked pin 10 radial direction moves down, extend between boss 1 formed groove in, realize the locked of piston rod 5 axial motion.
In addition, when oil pocket 4 18 and oil pocket 5 19 connect fuel tank simultaneously, locked pin 10, under the elastic force effect of spring 11, exits the groove formed between boss 1, and piston rod 5 is in the state that axial motion unlocks.
The specific works process of the automobile back wheel hydraulic steering cylinder that the present embodiment provides is as follows:
When needs rear-axle steering, as shown in Fig. 4 to 5, hydraulic fluid port 1 filling high pressure oil, hydraulic fluid port 2 21 connection fuel tank (or hydraulic fluid port 1 connects fuel tank, hydraulic fluid port 2 21 filling high pressure oil), hydraulic fluid port 3 22, hydraulic fluid port 4 23, hydraulic fluid port 5 24 all connect fuel tank, and centering and locked locking function are not acted on, piston rod 5 moves axially under the pressure of oil pocket 1 (or oil pocket 2 16), realizes turning to of trailing wheel.
When not needing rear-axle steering, as shown in Figures 1 to 3, first perform alignment function, rear execution locking function.Hydraulic fluid port 1 and hydraulic fluid port 2 21 all connect fuel tank, and hydraulic fluid port 3 22 filling high pressure oil, under the effect of high pressure oil, piston 1 and piston 29 drive boss 1 to start to move to the neutral position of cylinder body 22, boss 2 14 spacing under, finally make piston rod 5 remain on meta, complete centering.And then, hydraulic control valve to be annotated high pressure oil to hydraulic fluid port 4 23, and hydraulic fluid port 5 24 connects fuel tank, the elastic force that high pressure oil overcomes spring 11 locked pin 10 is pushed into formed between boss 1 groove in, complete locked.If desired unlock, only need hydraulic fluid port 4 23 to take back fuel tank, to annotate high pressure oil to hydraulic fluid port 5 24, under the double action of high pressure oil and spring 11, locked pin 10 exit rapidly formed between boss 1 groove, complete unblock.
Finally should be noted that: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of spirit and scope of the invention or equivalently to replace within the claims that all awaits the reply in application.
Claims (10)
1. an automobile back wheel hydraulic steering cylinder, described oil hydraulic cylinder comprises the coaxial cylinder body one (1) that arranges and cylinder body two (2), the two ends of described cylinder body one (1) and cylinder body two (2) and therebetween respectively radial direction end cap one (3), end cap two (4) and intermediate end cover (7) are set; Described cylinder body one (1) is provided with the axle center of cylinder body two (2) piston rod (5) running through described end cap one (3), intermediate end cover (7) and end cap two (4);
It is characterized in that: piston rod (5) radial direction between described end cap one (3) and intermediate end cover (7) arranges piston (6); Piston rod (5) interval radial direction between described intermediate end cover (7) and end cap two (4) arranges boss one (13), piston rod (5) between described boss one (13) and intermediate end cover (7) arranges the piston one (8) of axial float, and the piston rod (5) between described boss one (13) and end cap two (4) is provided with the piston two (9) of axial float.
2. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterized in that, described cylinder body two (2) wall arranges the boss two (14) corresponding with described boss one (13), between described boss two (14), interval radial direction arranges pin-and-hole, arranges locked pin (10) in described pin-and-hole.
3. automobile back wheel hydraulic steering cylinder as claimed in claim 2, it is characterized in that, the confined space that described cylinder body two (2), intermediate end cover (7) and piston one (8) form and the confined space that cylinder body two (2), intermediate end cover (7) and piston two (9) form form oil pocket three (17), and described cylinder body two (2) wall arranges hydraulic fluid port three (22) respectively near intermediate end cover (7) and end cap two (4) place.
4. automobile back wheel hydraulic steering cylinder as claimed in claim 2, it is characterized in that, arrange gap between described boss one (13) and boss two (14), the confined space that described cylinder body two (2), piston one (8), piston two (9) and locked pin (10) form forms oil pocket four (18).
5. automobile back wheel hydraulic steering cylinder as claimed in claim 4, it is characterized in that, described locked pin (10) is " convex " font, and bottom it, top bilateral symmetry arranges the spring (11) be connected with boss two (14); Described locked pin (10) inside is provided with L-type through hole, and the outlet of described through hole lays respectively at bottom it and sidewall.
6. automobile back wheel hydraulic steering cylinder as claimed in claim 5, it is characterized in that, described locked pin (10) top is provided with the end cap (12) be connected with cylinder body two (2), described cylinder body two (2) wall and end cap (12) respectively correspondence are provided with the perforate be connected with described locked pin (10) through hole, form hydraulic fluid port five (24) after described perforate is connected with through hole.
7. automobile back wheel hydraulic steering cylinder as claimed in claim 6, it is characterized in that, the confined space that described locked pin (10), end cap (12) and cylinder body two (2) form forms oil pocket five (19), and described end cap (12) wall is positioned at locked pin (10) top and arranges hydraulic fluid port four (23).
8. automobile back wheel hydraulic steering cylinder as claimed in claim 7, it is characterized in that, the quantity of described locked pin (10) is 4, and interval is equidistantly arranged between described boss two (14).
9. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterized in that, the confined space that described cylinder body one (1), end cap one (3) and piston (6) form forms oil pocket two (16), and described cylinder body one (1) wall arranges hydraulic fluid port two (21) near end cap one (3) place.
10. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterized in that, the confined space that described cylinder body one (1), intermediate end cover (7) and piston (6) form forms oil pocket one (15), and described cylinder body one (1) wall arranges hydraulic fluid port one (20) near intermediate end cover (7) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334902.3A CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334902.3A CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879342A true CN104879342A (en) | 2015-09-02 |
| CN104879342B CN104879342B (en) | 2017-09-01 |
Family
ID=53946973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510334902.3A Expired - Fee Related CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879342B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292241A (en) * | 2015-11-20 | 2016-02-03 | 湖北汽车工业学院 | Automobile rear wheel steering hydraulic alignment cylinder and use method thereof |
| CN112483505A (en) * | 2020-11-27 | 2021-03-12 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
| CN114475773A (en) * | 2022-04-15 | 2022-05-13 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884647A (en) * | 1983-11-21 | 1989-12-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rear wheel steering apparatus |
| US5099939A (en) * | 1988-02-04 | 1992-03-31 | Zahnradfabrik Friedrichshafen, Ag | Multi-axle steering system |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN101660551A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | Oil gas suspension hydraulic locking device |
| CN201560997U (en) * | 2009-11-03 | 2010-08-25 | 中船重工中南装备有限责任公司 | Steering locked oil cylinder |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2715624B1 (en) * | 1994-01-28 | 1996-03-15 | Lohr Ind | Directional control link for a rear steering road train. |
-
2015
- 2015-06-16 CN CN201510334902.3A patent/CN104879342B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884647A (en) * | 1983-11-21 | 1989-12-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rear wheel steering apparatus |
| US5099939A (en) * | 1988-02-04 | 1992-03-31 | Zahnradfabrik Friedrichshafen, Ag | Multi-axle steering system |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN101660551A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | Oil gas suspension hydraulic locking device |
| CN201560997U (en) * | 2009-11-03 | 2010-08-25 | 中船重工中南装备有限责任公司 | Steering locked oil cylinder |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292241A (en) * | 2015-11-20 | 2016-02-03 | 湖北汽车工业学院 | Automobile rear wheel steering hydraulic alignment cylinder and use method thereof |
| CN112483505A (en) * | 2020-11-27 | 2021-03-12 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
| CN112483505B (en) * | 2020-11-27 | 2022-11-11 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
| CN114475773A (en) * | 2022-04-15 | 2022-05-13 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
| CN114475773B (en) * | 2022-04-15 | 2022-07-01 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104879342B (en) | 2017-09-01 |
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