CN217463166U

CN217463166U - Adjusting body structure of automobile steering device

Info

Publication number: CN217463166U
Application number: CN202221330917.4U
Authority: CN
Inventors: 李亚彬; 王晓娜; 赵佳佳; 张仪松; 孙方兴
Original assignee: Yubei Steering System Xinxiang Co ltd
Current assignee: North Henan Steering System Xinxiang Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-20
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses an adjusting body structure of an automobile steering device, which comprises an adjusting screw plug, an adjusting spring and an adjusting integral pressing block, wherein the adjusting integral pressing block is of a step columnar structure, and the small-diameter end of the adjusting integral pressing block is a sliding body connecting part; the outer surface of the connecting part of the sliding body is provided with a convex rib; the periphery of the connecting part of the sliding body is sleeved with the sliding body, and the inner ring and the outer ring of the sliding body are both circular cylinders; the inner wall of the inner ring is provided with a groove which is matched and spliced with the convex edge; an annular inner ball groove is arranged on the outer wall of the inner ring along the circumferential direction; the inner wall of the outer ring is provided with an outer ball groove corresponding to the inner ball groove in position; the rolling ball retainer is arranged between the inner ring and the outer ring, and a plurality of rolling balls arranged in the rolling ball retainer are in rolling and clamping connection between the inner rolling ball groove and the outer rolling ball groove; the outer part of the outer ring is connected with the adjusting body shell. The utility model discloses a whole briquetting of accent of auto steering ware's adjustment body structure rolls by a plurality of spin and supports between with the casing, has avoided the jamming between adjustment body pressure piece and the casing, and is more stable.

Description

Adjusting body structure of automobile steering device

Technical Field

The utility model belongs to the technical field of auto steering ware, especially, relate to an auto steering ware's adjustment body structure.

Background

The meshing clearance of a gear rack mechanical steering gear of an automobile has great influence on the performance of the steering gear, and the adjusting body is used for adjusting the meshing clearance between a gear and a rack in the automobile steering gear. Fig. 1 is a view showing an adjusting body structure of a steering gear of a vehicle in the prior art, and fig. 2 is a bottom view of fig. 1, and the adjusting body structure of the steering gear of the vehicle in the prior art is shown in fig. 1 and 2, and comprises an adjusting screw plug 1 and an adjusting body pressure block 3, and a gap between a rack 5 and a gear 4 caused by abrasion is compensated by pressing and pressing an adjusting spring 2 between the adjusting screw plug 1 and the adjusting body pressure block 3. Since the adjusting block 3 is mounted in the housing 6, an outer O-ring 31 is mounted in the circumferential direction of the adjusting block 3 in order to reduce the rigid friction between the adjusting block 3 and the housing 6. In the adjusting body structure in the prior art, the outer O-shaped ring is aged and loses elasticity even generates permanent deformation after being subjected to repeated friction in the long-term use process, so that corners between the adjusting body pressing block 3 and the shell 6 collide, and the inner wall of the adjusting body is very easy to block.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides an inner wall jamming that adjustment body structure of auto steering ware is difficult for appearing the friction and leading to.

The technical scheme of the utility model is that:

an adjusting body structure of an automobile steering device comprises an adjusting screw plug, an adjusting spring and an adjusting integral pressing block, wherein the adjusting spring is in compression joint between the adjusting screw plug and the adjusting integral pressing block, the adjusting integral pressing block is of a step columnar structure, the large-diameter end of the adjusting integral pressing block is a jacking part for jacking a rack, and the small-diameter end of the adjusting integral pressing block is a sliding body connecting part; the outer surface of the connecting part of the sliding body is provided with a convex edge which is parallel to the central shaft of the adjusting integral pressing block; the periphery of the sliding body connecting part is sleeved with a sliding body, the sliding body comprises an inner ring, an outer ring and a rolling ball retainer, and the inner ring and the outer ring are circular cylinders; a groove is formed in the inner wall of the inner ring and is matched and spliced with the convex edge; an annular inner ball rolling groove is formed in the outer wall of the inner ring along the circumferential direction; an outer ball rolling groove corresponding to the inner ball rolling groove in position is formed in the inner wall of the outer ring; the rolling ball retainer is arranged between the inner ring and the outer ring, and a plurality of rolling balls are arranged in the rolling ball retainer and are in rolling clamping connection between the inner rolling ball groove and the outer rolling ball groove; the outer part of the outer ring is fixedly connected with the shell of the adjusting body.

Preferably, the inner ball groove, the outer ball groove and the ball retainer are a plurality of the same number.

Preferably, the end of the connecting part of the sliding body is provided with a cavity for accommodating and pressing the adjusting spring.

Preferably, the number of the convex ribs and the number of the grooves are the same, and the convex ribs are uniformly distributed on the outer surface of the connecting part of the sliding body.

Preferably, the length of the convex edge and the length of the groove are smaller than the length of the connecting part of the sliding body, an annular groove along the circumferential direction of the inner ring is arranged at the end part of the groove, and an inner O-shaped ring is arranged in the annular groove.

The utility model has the advantages that:

the utility model discloses an adjustment body structure of auto steering ware is through setting up the sliding body between casing and sliding body connecting portion for adjust between whole briquetting and the casing by inner circle, outer lane and a plurality of spin roll support, avoided appearing the jamming between adjustment body pressure piece and the casing, and more stable.

Drawings

Fig. 1 shows a prior art structure of an adjustment body of a steering gear of an automobile.

Fig. 2 is a bottom view of fig. 1.

Fig. 3 shows an adjusting body structure of the steering device of the present invention.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a perspective view of the integrated pressure block.

FIG. 6 is a front view of the conditioning block.

Fig. 7 is an axial sectional view of the tuning body compact.

Fig. 8 is a perspective view of an inner race of the slider.

Fig. 9 is a front view of the inner race of the slider.

Fig. 10 is an axial cross-sectional view of fig. 9.

Fig. 11 is a sectional view of the adjustment body block and the slider after assembly.

Fig. 12 is a perspective view of the ball retainer.

In the figure:

1. adjusting the screw plug; 2. adjusting the spring; 3. adjusting the whole pressing block; 31. an outer O-ring; 32. a jacking portion; 33. a slider connecting portion; 331. a rib; 332. a cavity; 34. a sliding body; 341. an inner ring; 3411. an inner ball groove; 3412. a groove; 3413. an annular groove; 342. a ball retainer; 343. rolling a ball; 344. an outer ring; 3441. an outer ball rolling groove; 4. a gear; 5. a rack; 6. a housing; 7. an inner O-shaped ring.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings. Fig. 3 is a structure of an adjustment body of the steering gear of the present invention, and fig. 4 is a bottom view of fig. 3.

As shown in fig. 3 and 4, the utility model discloses an adjustment body structure of automobile steering gear, including adjustment plug screw 1, adjustment spring 2 and adjustment body pressure piece 3, the crimping of adjustment spring 2 is in adjustment plug screw 1 with transfer between whole briquetting 3. Fig. 5 is a perspective view of the adjusting block, fig. 6 is a front view of the adjusting block, and fig. 7 is an axial sectional view of the adjusting block. As shown in fig. 3, 4, 5, 6, and 7, the adjusting integral pressing block 3 has a step-shaped columnar structure, the large diameter end of which is a pressing portion 32 for pressing the rack 5, and the small diameter end of which is a sliding body connecting portion 33; the outer surface of the sliding body connecting part 33 is provided with a convex rib 331, and the convex rib 331 is parallel to the central axis of the adjusting integral pressing block 3. Fig. 11 is a sectional view of the assembled adjusting body pressure block and the sliding body, as shown in fig. 3, 4 and 11, the sliding body 34 is sleeved on the outer periphery of the sliding body connecting portion 33, the sliding body 34 includes an inner ring 341, an outer ring 344 and a ball retainer 342, and the inner ring 341 and the outer ring 344 are both circular cylinders. Fig. 8 is a perspective view of an inner race of a slider, fig. 9 is a front view of the inner race of the slider, and fig. 10 is an axial sectional view of fig. 9. As shown in fig. 8, 9 and 10, the inner wall of the inner ring 341 is provided with a groove 3412. The groove 3412 is matched and inserted with the convex rib 331; an annular inner ball groove 3411 is formed in the outer wall of the inner ring 341 in the circumferential direction; an outer rolling ball groove 3441 corresponding to the inner rolling ball groove 3411 is formed in the inner wall of the outer ring 344; the ball cage 342 is disposed between the inner race 341 and the outer race 344. Fig. 12 is a perspective view of a ball cage, as shown in fig. 12, having a plurality of balls 343 disposed therein, in the ball cage 342. The rolling ball 343 is in rolling joint between the inner rolling ball groove 3411 and the outer rolling ball groove 3441; the outer part of the outer ring 344 is fixedly connected to the housing 6 of the adjustment body.

The working principle is as follows:

the utility model discloses an automobile steering gear's adjustment body structure is at the during operation, 2 crimping of adjustment spring are in adjust plug screw 1 with adjust the clearance that is used for the compensation to produce owing to the wearing and tearing between gear 4 and the rack 5 between the whole briquetting 3. The outer part of the outer ring 344 of the sliding body 34 is fixedly connected with the housing 6 of the adjusting body, and the plurality of rolling balls 343 in the rolling ball holder 342 arranged between the inner ring 341 and the outer ring 344 are supported in the circumferential direction, so that when the automobile steering gear shakes during movement, the plurality of rolling balls 343 can support and stabilize the adjusting integral pressing block 3 in the radial direction. Due to the axial guiding and radial limiting effects of the convex edge 331 on the adjusting integral pressing block 3, the twisting effect generated by slight steering gear twisting generated in the running process of an automobile cannot be independently transmitted to the adjusting spring 2, so that the fatigue deformation of the adjusting spring 2 caused by long-term torsional stress can be prevented, and the jacking of the adjusting spring 2 between the gear 4 and the rack 5 is more stable; the utility model discloses an automobile steering gear's adjustment body structure will twist reverse the effort that produces and drive inner circle 341, adjustment briquetting 3 and the whole rotation of adjustment spring 2 and off-load through the roll of a plurality of spin 343 that set up between inner circle 341 and outer lane 344.

The utility model discloses an adjustment body structure of auto steering ware not only can not appear transferring collision and jamming between whole briquetting 3 and the casing 6, and is more stable moreover.

Preferably, the inner ball grooves 3411, the outer ball grooves 3441, and the ball holder 342 are provided in the same number. The arrangement of the rolling ball holders 342 can form a plurality of rolling unloading rings, so that the adjusting whole press block 3 is more stable.

Preferably, the end of the slider connecting part 33 is provided with a cavity 332, and the cavity 332 is used for accommodating and pressing the adjusting spring 2. The cavity 332 is arranged to accommodate and press the adjusting spring 2, so that most of the adjusting spring 2 is located inside the adjusting body pressing block 3, and instability caused by large-amplitude circumferential movement of the adjusting spring 2 relative to the adjusting body pressing block 3 is prevented.

Preferably, the protruding ribs 331 and the grooves 3412 are provided in the same number, and the protruding ribs 331 are uniformly distributed on the outer surface of the slider connecting portion 33. The plurality of ribs 331 and the grooves 3412 make the adjusting body pressure block 3 more stable in circumferential direction after being inserted into the inner ring 341 and not easy to rotate in circumferential direction.

Preferably, the length of the protrusion 331 and the groove 3412 is smaller than the length of the sliding body connecting portion 33, an annular groove 3413 is provided at an end of the groove 3412 along the circumferential direction of the inner ring 341, and an inner O-ring 7 is provided in the annular groove 3413. The inner O-shaped ring 7 is arranged to be pressed between the adjusting integral pressing block 3 and the inner ring 341 of the sliding body 34, so that the sliding body 34 and the adjusting body pressing block 3 are in elastic contact, and the friction abnormal sound generated by rigid contact is avoided.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other. In addition, the above embodiments are only some embodiments, not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention based on the embodiments of the present invention.

Claims

1. An adjusting body structure of an automobile steering device comprises an adjusting screw plug, an adjusting spring and an adjusting integral pressing block, wherein the adjusting spring is in compression joint between the adjusting screw plug and the adjusting integral pressing block; the outer surface of the connecting part of the sliding body is provided with a convex edge which is parallel to the central shaft of the adjusting integral pressing block; the sliding body is sleeved on the periphery of the connecting part of the sliding body and comprises an inner ring, an outer ring and a rolling ball retainer, and the inner ring and the outer ring are both circular cylinders; a groove is formed in the inner wall of the inner ring and is matched and spliced with the convex edge; an annular inner ball rolling groove is formed in the outer wall of the inner ring along the circumferential direction; the inner wall of the outer ring is provided with an outer ball rolling groove corresponding to the inner ball rolling groove in position; the rolling ball retainer is arranged between the inner ring and the outer ring, and a plurality of rolling balls are arranged in the rolling ball retainer and are in rolling clamping connection between the inner rolling ball groove and the outer rolling ball groove; the outer part of the outer ring is fixedly connected with the shell of the adjusting body.

2. The adjusting body structure of a steering gear for a vehicle according to claim 1, wherein said inner ball groove, said outer ball groove and said ball holder are plural in the same number.

3. The adjusting body structure of a steering gear for a vehicle according to claim 2, wherein the end of the slider connecting portion is provided with a cavity for receiving and pressing the adjusting spring.

4. The adjustment body structure of a steering gear for a vehicle according to claim 3, wherein said plurality of ribs and said plurality of grooves are provided in the same number, and said plurality of ribs are uniformly provided on the outer surface of said slider connecting portion.

5. The adjusting body structure of a steering gear for a vehicle according to claim 4, wherein the length of the rib and the groove is smaller than the length of the slider connecting portion, and the end of the groove is provided with an annular groove along the circumferential direction of the inner ring, and the annular groove is provided with an inner O-ring therein.