CN220701186U - Automobile steering power-assisted oil cylinder - Google Patents
Automobile steering power-assisted oil cylinder Download PDFInfo
- Publication number
- CN220701186U CN220701186U CN202322411180.XU CN202322411180U CN220701186U CN 220701186 U CN220701186 U CN 220701186U CN 202322411180 U CN202322411180 U CN 202322411180U CN 220701186 U CN220701186 U CN 220701186U
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- cylinder body
- end cover
- hole
- oil
- ball pin
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- 239000000428 dust Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model relates to an automobile steering power-assisted oil cylinder which comprises an outer cylinder body, an inner cylinder body, a piston rod, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively connected to two ends of the outer cylinder body, the inner cylinder body is arranged in the outer cylinder body in parallel, two ends of the inner cylinder body are respectively connected with the front end cover and the rear end cover, an oil passing cavity is formed between the outer wall of the inner cylinder body and the inner wall of the outer cylinder body, an oil passing channel connected with the inner cylinder body through the oil cavity is formed in the rear end cover, a first oil conveying hole and a second oil conveying hole which are respectively communicated with the inner cylinder body and the oil passing cavity are formed in the front end cover, the piston is arranged in the inner cylinder body in a sliding mode, a sliding hole is formed in the front end cover, and one end of the piston rod penetrates through the sliding hole to extend into the inner cylinder body to be connected with the piston. The automobile steering power-assisted oil cylinder has the advantages that the first oil conveying hole and the second oil conveying hole are formed in the front end cover, the two oil conveying pipes are connected and then located on the same side, the oil conveying pipes are conveniently bundled by a traveling line, the stability of the connection of the oil conveying pipes is guaranteed, and therefore the stability of the performance of the steering power-assisted pump is guaranteed.
Description
Technical Field
The utility model relates to the technical field of automobile steering systems, in particular to an automobile steering power-assisted oil cylinder.
Background
In the steering power assisting system of an automobile, particularly a steering power assisting system of a medium-large-sized vehicle, a steering power assisting cylinder is arranged on the steering bridge, and the steering power assisting cylinder is connected with a steering power assisting device to play a role of a steering executing mechanism, reduce steering hand force of the vehicle, lighten labor intensity of a driver and improve maneuverability and driving sensitivity of the vehicle.
In the prior art, a steering power-assisted oil cylinder is provided with a cylinder body, a piston and a piston rod, the piston is arranged in the cylinder body in a sliding manner, the piston rod penetrates into the cylinder body and is connected with the piston, two oil pipe joints which are communicated with the cylinder body and are respectively positioned at two sides of the piston are connected to the cylinder body.
The present utility model has been made in view of the above problems.
Disclosure of Invention
The utility model provides an automobile steering power-assisted oil cylinder, which solves the problems existing in the use process of the prior art.
The technical scheme of the utility model is realized as follows:
the utility model provides an automobile steering power-assisted cylinder, includes outer cylinder body, piston rod, front end housing and rear end cap are connected respectively on the both ends of outer cylinder body, still include interior cylinder body, interior cylinder body parallel arrangement is in outer cylinder body and interior cylinder body both ends are connected with front end housing and rear end cap respectively, be formed with the oil pocket between interior cylinder body outer wall and the outer cylinder body inner wall, set up the oil passage that links through oil pocket and interior cylinder body in the rear end cap, set up first oil feed hole and the second oil feed hole with interior cylinder body and oil pocket intercommunication respectively in the front end housing, the piston slides and sets up in interior cylinder body, the slide hole has been seted up in the front end housing, piston rod one end passes the slide hole and stretches into in the cylinder body and be connected with the piston.
Preferably, the front end cover and the rear end cover respectively extend into two ends of the outer cylinder body to be welded with the outer cylinder body, a first limit protrusion matched with the inner diameter of the inner cylinder body is formed on the end face of the front end cover extending into the outer cylinder body, a second limit protrusion matched with the inner diameter of the inner cylinder body is formed on the end face of the rear end cover extending into the outer cylinder body, and the first limit protrusion and the second limit protrusion are respectively clamped into two ends of the inner cylinder body.
Preferably, the front end cover is exposed on the end face of the outer cylinder body and is provided with an inclined plane, and the ports of the first oil conveying hole and the second oil conveying hole are positioned on the plane.
Preferably, the end part of the rear end cover exposed out of the outer cylinder body is connected with a ball pin installation sleeve, a ball pin seat is arranged in the ball pin installation sleeve, and a ball pin is connected to the ball pin seat.
Preferably, a volute spring is arranged between the ball pin seat and the end face of the rear end cover.
Preferably, the rear end cover is connected with a first dust cover for covering the ball pin installation sleeve, the first dust cover is sleeved on the peripheral side surface of the rear end cover and fastened through a first clamp, a through hole through which the ball pin can pass is formed in the first dust cover, and one end of the ball pin passes through the through hole.
Preferably, the part of the piston rod penetrating out of the sliding hole is sleeved with a second dust cover, one end of the second dust cover is sleeved on the piston rod and fastened through a second clamp, a clamping protrusion is formed on the inner wall of the other end of the second dust cover, a clamping ring groove matched with the clamping protrusion is formed on the peripheral side surface of the front end cover, and the clamping protrusion is clamped into the clamping ring groove.
Preferably, an abutting part surrounding the through hole is formed on the inner wall of the first dust cover, and the abutting part abuts against the ball pin.
Preferably, a framework oil seal surrounding the piston rod is arranged in the sliding hole, a supporting ring is arranged on one side of the framework oil seal in the sliding hole, and the supporting ring is limited in the sliding hole through a retainer ring for the hole and abuts against the framework oil seal.
Preferably, the support ring is an L-shaped support ring.
In summary, the beneficial effects of the utility model are as follows: because the first oil conveying hole and the second oil conveying hole are arranged on the front end cover, the two oil conveying pipes are connected and then positioned at the same end side of the steering power-assisted oil cylinder, the traveling line of the oil conveying pipes is conveniently converged, the stability of the connection of the oil conveying pipes is ensured, and the stability of the performance of the steering power-assisted pump is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an end view of the front end cap of the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
fig. 4 is an enlarged schematic view at B in fig. 1.
In the figure: 1. an outer cylinder; 2. an inner cylinder; 3. a piston; 4. a piston rod; 5. a front end cover; 51. a first oil feed hole; 52. a second oil delivery hole; 53. a sliding hole; 54. the first limiting protrusion; 55. a plane; 56. the clamping ring groove is connected; 6. a rear end cover; 61. an oil passage; 62. the second limiting bulge; 7. passing through the oil cavity; 8. ball pin installation sleeve; 9. a ball pin seat; 10. ball pins; 11. a volute spring; 12. a first dust cover; 121. a through hole; 122. an abutting portion; 13. a first clip; 14. a second dust cover; 141. the clamping bulge; 15. a second clip; 16. a framework oil seal; 17. a support ring; 18. and a retainer ring for holes.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in the figure, the automobile steering cylinder comprises an outer cylinder body 1, a piston 3, a piston rod 4, a front end cover 5 and a rear end cover 6, wherein the front end cover 5 and the rear end cover 6 are respectively connected to two ends of the outer cylinder body 1, the automobile steering cylinder further comprises an inner cylinder body 2, the inner cylinder body 2 is arranged in the outer cylinder body 1 in parallel, two ends of the inner cylinder body 2 are respectively connected with the front end cover 5 and the rear end cover 6, an oil passing cavity 7 is formed between the outer wall of the inner cylinder body 2 and the inner wall of the outer cylinder body 1, an oil passing channel 61 which is connected with the inner cylinder body 2 through the oil cavity 7 is formed in the rear end cover 6, a first oil transmission hole 51 and a second oil transmission hole 52 which are respectively communicated with the inner cylinder body 2 and the oil passing cavity 7 are formed in the front end cover 5, the piston 3 is arranged in the inner cylinder body 2 in a sliding mode, a sliding hole 53 is formed in the front end cover 5, and one end of the piston rod 4 penetrates through the sliding hole 53 to extend into the inner cylinder body 2 to be connected with the piston 3.
Specifically, the front end cover 5 and the rear end cover 6 respectively extend into two ends of the outer cylinder body 1 to be welded with the outer cylinder body 1, a first limiting protrusion 54 matched with the inner diameter of the inner cylinder body 2 is formed on the end face of the front end cover 5 extending into the outer cylinder body 1, a second limiting protrusion 62 matched with the inner diameter of the inner cylinder body 2 is formed on the end face of the rear end cover 6 extending into the outer cylinder body 1, and the first limiting protrusion 54 and the second limiting protrusion 62 are respectively clamped into two ends of the inner cylinder body 2 to realize connection between the outer cylinder body 1 and the inner cylinder body 2 and the front end cover 5 and the rear end cover 6.
Specifically, the end part of the rear end cover 6 exposed out of the outer cylinder body 1 is connected with a ball pin installation sleeve 8, a ball pin seat 9 is arranged in the ball pin installation sleeve 8, and a ball pin 10 is connected to the ball pin seat 9.
In the above embodiment, the end parts of the ball pin 10 and the piston rod 4 extending out of the sliding hole 53 are respectively connected to the steering axle and the steering booster in the steering system of the vehicle, and the two oil delivery pipes are respectively connected to the ports of the first oil delivery hole 51 and the second oil delivery hole 52, because the first oil delivery hole 51 and the second oil delivery hole 52 are both arranged on the front end cover 5, the two oil delivery pipes are connected and then are positioned at the same end side of the steering booster cylinder, so that the oil delivery pipes can be conveniently retracted, the stability of the connection of the oil delivery pipes is ensured, and the stability of the performance of the steering booster pump is ensured.
Preferably, the front end cover 5 has an inclined plane 55 exposed on the end surface of the outer cylinder 1, and the ports of the first oil delivery hole 51 and the second oil delivery hole 52 are located on the plane 55, and the inclined plane 55 makes it easier to operate when connecting the oil delivery pipe to the ports of the first oil delivery hole 51 and the second oil delivery hole 52.
Preferably, a volute spring 11 is arranged between the ball pin seat 9 and the end face of the rear end cover 6, and the volute spring 11 can absorb vibration generated when the piston rod 4 stretches and slides, so that the stability of the performance of the steering power-assisted oil cylinder is ensured.
Further, a first dust cover 12 for covering the ball pin installation sleeve 8 is connected to the rear end cover 6, the first dust cover 12 is sleeved on the circumferential side surface of the rear end cover 6 and fastened through a first clamp 13, a through hole 121 through which the ball pin 10 can pass is formed in the first dust cover 12, and one end of the ball pin 10 passes through the through hole 121.
The part of the piston rod 4 penetrating out of the sliding hole 53 is sleeved with a second dust cover 14, one end of the second dust cover 14 is sleeved on the piston rod 4 and fastened through a second clamp 15, the inner wall of the other end of the second dust cover is provided with a clamping protrusion 141, the side surface of the periphery of the front end cover 5 is provided with a clamping ring groove 56 matched with the clamping protrusion 141, and the clamping protrusion 141 is clamped into the clamping ring groove 56.
In the above preferred embodiment, the first dust cover 12 and the second dust cover 14 play a dust-proof role on the movable portion of the ball pin 10 and the movable portion of the piston rod 4, respectively, ensuring the smoothness of the swing of the ball pin 10 in the ball pin seat 9 and the smoothness of the sliding of the piston rod 4 in the sliding hole 53, thereby ensuring the stability of the steering cylinder performance.
Preferably, an abutment portion 122 surrounding the through hole 121 is formed on the inner wall of the first dust cover 12, the abutment portion 122 abuts against the ball pin 10, and the abutment portion 122 enhances the adhesion between the first dust cover 12 and the ball pin 10 at the through hole 121 after abutting against the ball pin 10, so as to play a better dust-proof role when the ball pin 10 swings in the seat 9 of the ball pin 10.
Still further, the framework oil seal 16 surrounding the piston rod 4 is arranged in the sliding hole 53, a supporting ring 17 is arranged on one side of the framework oil seal 16 in the sliding hole 53, and the supporting ring 17 is limited in the sliding hole 53 by the hole retainer ring 18 and abuts against the framework oil seal 16.
In the above preferred embodiment, the support ring 17 stably maintains the frame oil seal 16 in the sliding hole 53 to perform a sealing function after abutting against the frame oil seal 16, thereby ensuring the stability of the steering cylinder performance.
Preferably, the support ring 17 is an L-shaped support ring 17, and after the L-shaped support ring 17 is adopted, when the support ring 17 receives the force from the framework oil seal 16, the support ring 17 is stressed at three positions including the flat inner hole, the inner hole and the bottom, so that the support ring 17 can be more stably propped against the framework oil seal 16, and the sealing performance and the reliability of the steering power-assisted oil cylinder are enhanced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The utility model provides an automobile steering power-assisted cylinder, includes outer cylinder body (1), piston (3), piston rod (4), front end housing (5) and rear end housing (6) are connected respectively on the both ends of outer cylinder body (1), its characterized in that: still include interior cylinder body (2), interior cylinder body (2) parallel arrangement just interior cylinder body (2) both ends are connected with front end housing (5) and rear end housing (6) respectively in outer cylinder body (1), be formed with between interior cylinder body (2) outer wall and the outer cylinder body (1) inner wall and cross oil pocket (7), set up in rear end housing (6) and even pass through oil pocket (7) and interior cylinder body (2) oily passageway (61) of crossing, set up in front end housing (5) with interior cylinder body (2) and the first oil hole (51) and the second oil hole (52) of crossing oil pocket (7) intercommunication respectively, piston (3) slip sets up in interior cylinder body (2), sliding hole (53) have been seted up in front end housing (5), piston rod (4) one end stretches into in cylinder body (2) and is connected with piston (3) through sliding hole (53).
2. The steering assist cylinder of claim 1, wherein: the front end cover (5) and the rear end cover (6) respectively extend into two ends of the outer cylinder body (1) and are welded with the outer cylinder body (1), a first limit protrusion (54) matched with the inner diameter of the inner cylinder body (2) is formed on the end face of the front end cover (5) extending into the outer cylinder body (1), a second limit protrusion (62) matched with the inner diameter of the inner cylinder body (2) is formed on the end face of the rear end cover (6) extending into the outer cylinder body (1), and the first limit protrusion (54) and the second limit protrusion (62) are respectively clamped into two ends of the inner cylinder body (2).
3. The steering assist cylinder of claim 1, wherein: the front end cover (5) is exposed on the end face of the outer cylinder body (1) and is provided with an inclined plane (55), and ports of the first oil conveying hole (51) and the second oil conveying hole (52) are positioned on the plane (55).
4. The steering assist cylinder of claim 1, wherein: the rear end cover (6) is connected with a ball pin installation sleeve (8) at the end part exposed out of the outer cylinder body (1), a ball pin seat (9) is arranged in the ball pin installation sleeve (8), and a ball pin (10) is connected to the ball pin seat (9).
5. The steering assist cylinder as set forth in claim 4, wherein: a volute spring (11) is arranged between the ball pin seat (9) and the end face of the rear end cover (6).
6. The steering assist cylinder for an automobile according to claim 4 or 5, characterized in that: the novel ball pin is characterized in that a first dustproof cover (12) for coating the ball pin mounting sleeve (8) is connected to the rear end cover (6), the first dustproof cover (12) is sleeved on the peripheral side face of the rear end cover (6) and is fastened through a first clamp (13), a through hole (121) through which the ball pin (10) can pass is formed in the first dustproof cover (12), and one end of the ball pin (10) penetrates through the through hole (121).
7. The steering assist cylinder as set forth in claim 6, wherein: the part of the piston rod (4) penetrating out of the sliding hole (53) is sleeved with a second dustproof sleeve (14), one end of the second dustproof sleeve (14) is sleeved on the piston rod (4) and fastened through a second clamp (15), a clamping protrusion (141) is formed on the inner wall of the other end of the second dustproof sleeve, a clamping ring groove (56) matched with the clamping protrusion (141) is formed on the peripheral side face of the front end cover (5), and the clamping protrusion (141) is clamped into the clamping ring groove (56).
8. The steering assist cylinder as set forth in claim 6, wherein: an abutting part (122) surrounding the through hole (121) is formed on the inner wall of the first dust cover (12), and the abutting part (122) abuts against the ball pin (10).
9. The steering assist cylinder of claim 1, wherein: the sliding hole (53) is internally provided with a framework oil seal (16) surrounding the piston rod (4), one side of the sliding hole (53) positioned on the framework oil seal (16) is provided with a supporting ring (17), and the supporting ring (17) is limited in the sliding hole (53) through a hole retainer ring (18) to be propped against the framework oil seal (16).
10. The steering assist cylinder as set forth in claim 9, wherein: the support ring (17) is an L-shaped support ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411180.XU CN220701186U (en) | 2023-09-05 | 2023-09-05 | Automobile steering power-assisted oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411180.XU CN220701186U (en) | 2023-09-05 | 2023-09-05 | Automobile steering power-assisted oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220701186U true CN220701186U (en) | 2024-04-02 |
Family
ID=90440006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322411180.XU Active CN220701186U (en) | 2023-09-05 | 2023-09-05 | Automobile steering power-assisted oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220701186U (en) |
-
2023
- 2023-09-05 CN CN202322411180.XU patent/CN220701186U/en active Active
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