CN210101739U - Steering gear adjusting mechanism and automobile steering gear - Google Patents
Steering gear adjusting mechanism and automobile steering gear Download PDFInfo
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- CN210101739U CN210101739U CN201920651826.2U CN201920651826U CN210101739U CN 210101739 U CN210101739 U CN 210101739U CN 201920651826 U CN201920651826 U CN 201920651826U CN 210101739 U CN210101739 U CN 210101739U
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- screw plug
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Abstract
The utility model discloses a steering gear adjusting mechanism, which comprises a pressing block, a rack, a spring and a pressing block screw plug; one end of the pressing block, which is close to the rack, is of an arc concave surface structure and is in press fit with the cylindrical surface of the rack; one end of the spring is arranged in the hollow structure at one end of the pressing block, which is far away from the rack, and the other end of the spring is arranged in the hollow structure at one end of the pressing block screw plug, which is close to the pressing block; the pressing block screw plug is provided with at least three radial expanding riveting points, and the axial position of the pressing block screw plug is used for adjusting the pressure of the spring on the pressing block; the gear and the steering gear adjusting mechanism are arranged in the steering gear shell, and one end, far away from the pressing block, of a rack in the steering gear adjusting mechanism is meshed with the gear; the utility model discloses a carry out the riveting of once only six radial reamer formulas of point to the briquetting plug screw after clearance adjustment accomplishes, avoid the axial meshing clearance to change, prevent that the briquetting plug screw from taking off, improve the production beat, reduced manufacturing cost.
Description
Technical Field
The utility model relates to an auto mechanical steering ware technical field especially relates to a steering gear adjustment mechanism and auto steering ware.
Background
In the prior art, a steering gear adjusting mechanism comprises a pressing block, an adjusting spring and a pressing block screw plug, the three parts are coaxially assembled inside a steering gear shell hole, the arc surface of the pressing block is in circumferential contact with the back of a rack, the pressing block screw plug is in threaded connection with the shell, the spring is designed between the pressing block and the pressing block screw plug, the pressure of the spring on the pressing block is adjusted by adjusting the axial position of the pressing block screw plug, so that a proper meshing gap between a gear and the rack is realized, the pressing block screw plug is locked after the gap adjustment is completed, and the mechanism is fixed.
In the prior art, the axial thread of the shell is deformed and locked due to punching and riveting on the end surface of the shell; if punching and riveting are carried out after the meshing clearance adjustment is finished, the axial deformation of the threads causes the pressing block plug screw to sink, and the meshing clearance change after the adjustment is finished is caused (the proper meshing clearance is 0.05mm, the thread pitch of the threads is 1.5mm, and the influence of the pressing block plug screw sinking on the clearance is great); so all take at present before the backlash adjustment to carry out six some towards rivets near the screw hole department at the casing terminal surface, then carry out the backlash adjustment, need test repeatedly during the backlash adjustment, loosen repeatedly simultaneously and screw up the briquetting plug screw, this process causes briquetting plug screw moment decay, has durable back briquetting plug screw pine to take off the risk, takes to above problem a lot of producers at present: six-point punching and riveting, clearance adjustment and three-point slight punching and riveting again, although the loosening risk is reduced, the meshing clearance adjustment value is damaged to a certain extent, and the production rhythm is prolonged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, to above problem point, the utility model discloses a steering gear adjustment mechanism through carry out the riveting of disposable six radial chambering formulas to the briquetting plug screw after clearance adjustment accomplishes, avoids the axial to dash to rivet the screw thread and sink and the meshing clearance who arouses changes, prevents that the briquetting plug screw pine from taking off to and the loosening takes off after briquetting plug screw moment decay is durable even.
In order to achieve the purpose of the utility model, the utility model provides a steering gear adjusting mechanism, which comprises a pressing block, a rack, a spring and a pressing block screw plug;
one end of the pressing block, which is close to the rack, is of an arc concave surface structure and is in press fit with the cylindrical surface of the rack;
one end of the spring is arranged in the hollow structure at one end of the pressing block, which is far away from the rack, and the other end of the spring is arranged in the hollow structure at one end of the pressing block screw plug, which is close to the pressing block;
the pressing block plug screw is provided with at least three radial hole expanding type riveting points, and the axial position of the pressing block plug screw is used for adjusting the pressure of the spring on the pressing block.
Furthermore, a thin-wall structure is further arranged on the pressing block screw plug, the thin-wall structure is arranged on an outer ring of the pressing block screw plug, and the radial hole expanding type riveting point is punched and riveted towards the direction close to the thin-wall structure.
Preferably, six radial hole expanding riveting points are arranged on the pressing block screw plug.
Furthermore, the thickness of the thin-wall structure is 2.5-3.5 mm.
Furthermore, the pressing block is of a cylindrical hollow structure, one end of the pressing block is of an arc concave surface structure, and a gasket is arranged on one side, close to the rack, of the arc concave surface.
Furthermore, at least one circle of groove is arranged on the circumferential surface of the pressing block, and a circular sealing ring is arranged in the groove.
The utility model discloses an automobile steering device, including steering gear casing, steering gear adjustment mechanism and gear, steering gear adjustment mechanism above steering gear adjustment mechanism, the gear with steering gear adjustment mechanism all sets up in the steering gear casing, rack in the steering gear adjustment mechanism is kept away from the one end of briquetting with gear intermeshing.
Further, the pressing block, the spring and the pressing block screw plug in the steering gear adjusting mechanism are coaxially arranged in the steering gear shell, and the pressing block screw plug is in threaded connection with the steering gear shell.
Furthermore, the thin-walled structure on the pressing block screw plug is close to one side of the steering gear shell, and the radial expanding riveting point on the pressing block screw plug is punched and riveted to one side close to the steering gear shell.
Preferably, the pressure piece screw plug is sunk by 1-2mm in the axial direction relative to the end face of the steering gear housing.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. the utility model discloses a steering gear adjusting mechanism, through carrying out the disposable six point radial expanding type riveting to the briquetting plug screw after clearance adjustment is accomplished, avoid the axial to dash the meshing clearance change that the riveting screw sinks and cause, prevent that briquetting plug screw from coming loose to and briquetting plug screw moment decay even durable back comes loose;
2. the utility model discloses a steering gear adjusting mechanism, the thin wall structure is arranged as the reaming area, which is convenient for the realization of reaming riveting;
3. the utility model discloses a steering gear adjusting mechanism, can once only rivet, improve the production beat, reduced manufacturing cost, and can avoid the axial meshing clearance change, prevent the briquetting plug screw pine from taking off;
4. the utility model discloses an automobile steering device, briquetting plug screw axial dimensions design for sink steering device housing face 1-2mm after the assembly is accomplished, avoid radial reaming formula riveting point to appear in terminal surface chamfer department, influence riveting intensity.
Drawings
In order to more clearly illustrate the steering gear adjusting mechanism and the automobile steering gear of the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an assembled structure of a steering gear adjusting mechanism;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an isometric view of FIG. 2;
FIG. 4 is a side view of the plug screw;
FIG. 5 is a cross-sectional view of a briquetting plug screw;
wherein the reference numerals in the figures correspond to: 1-radial expanding riveting point, 2-pressing block screw plug, 3-spring, 4-pressing block, 5-rack, 6-steering gear shell, 7-thin wall structure, 8-gasket and 9-circular sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 5: a steering gear adjusting mechanism comprises a pressing block 4, a rack 5, a spring 3 and a pressing block screw plug 2;
one end of the pressing block 4, which is close to the rack 5, is of an arc concave structure and is in tight fit with the cylindrical surface of the rack 5;
one end of the spring 3 is arranged in a hollow structure at one end of the pressing block 4 far away from the rack 5, and the other end of the spring is arranged in a hollow structure at one end of the pressing block screw plug 2 close to the pressing block 4;
the pressing block screw plug 2 is provided with at least three radial hole expanding type riveting points 1, and the axial position of the pressing block screw plug 2 is used for adjusting the pressure of the spring 3 on the pressing block 4; the utility model carries out one-time three-point radial hole expanding type riveting on the pressing block screw plug 2 after the clearance adjustment is finished, avoids the meshing clearance change caused by the sinking of the axial punching rivet thread, prevents the pressing block screw plug 2 from loosening, and prevents the pressing block screw plug 2 from loosening after the moment attenuation and even the durability; can once only rivet, improve the production beat, reduce manufacturing cost, and can avoid the axial meshing clearance to change, prevent that briquetting plug screw 2 from loosening and taking off.
Specifically, the pressing block screw plug 2 is further provided with a thin-wall structure 7, the thin-wall structure 7 is arranged on an outer ring of the pressing block screw plug 2, and the radial hole expanding type riveting point 1 is punched and riveted towards a direction close to the thin-wall structure 7; the utility model discloses thin-walled structure 7 that sets up, as the reaming region, the reaming riveted realization of being convenient for.
Furthermore, the pressing block 4 is of a cylindrical hollow structure, one end of the pressing block is of an arc concave surface structure, and a gasket 8 is arranged on one side, close to the rack 5, of the arc concave surface; at least one circle of groove is arranged on the circumferential surface of the pressing block 4, and a circular sealing ring 9 is arranged in the groove.
Example 2: is a preferred embodiment of embodiment 1
As shown in fig. 1 to 5, a steering gear adjusting mechanism comprises a pressing block 4, a rack 5, a spring 3 and a pressing block screw plug 2;
one end of the pressing block 4, which is close to the rack 5, is of an arc concave structure and is in tight fit with the cylindrical surface of the rack 5;
one end of the spring 3 is arranged in a hollow structure at one end of the pressing block 4 far away from the rack 5, and the other end of the spring is arranged in a hollow structure at one end of the pressing block screw plug 2 close to the pressing block 4;
the pressing block screw plug 2 is provided with at least three radial hole expanding type riveting points 1, and the axial position of the pressing block screw plug 2 is used for adjusting the pressure of the spring 3 on the pressing block 4;
further preferably, six radial expanding riveting points 1 are arranged on the pressing block screw plug 2; the utility model carries out one-off six-point radial expanding riveting on the pressing block screw plug 2 after the clearance adjustment is finished, avoids the meshing clearance change caused by the sinking of the axial punching rivet thread, prevents the pressing block screw plug 2 from loosening, and prevents the pressing block screw plug 2 from loosening after the moment attenuation and even the durability; can once only rivet, improve the production beat, reduce manufacturing cost, and can avoid the axial meshing clearance to change, prevent that briquetting plug screw 2 from loosening and taking off.
Specifically, the pressing block screw plug 2 is further provided with a thin-wall structure 7, the thin-wall structure 7 is arranged on an outer ring of the pressing block screw plug 2, and the radial hole expanding type riveting point 1 is punched and riveted towards a direction close to the thin-wall structure 7; the utility model discloses thin-walled structure 7 that sets up, as the reaming region, the reaming riveted realization of being convenient for.
Further, the thickness of the thin-walled structure 7 is 2.5-3.5 mm;
preferably, the thickness of the thin-walled structure 7 is 3 mm.
Furthermore, the pressing block 4 is of a cylindrical hollow structure, one end of the pressing block is of an arc concave surface structure, and a gasket 8 is arranged on one side, close to the rack 5, of the arc concave surface; at least one circle of groove is arranged on the circumferential surface of the pressing block 4, and a circular sealing ring 9 is arranged in the groove.
The difference from example 1 is that:
six radial expanding riveting points 1 are arranged on the pressing block screw plug 2.
Further, the thickness of the thin-walled structure 7 is 2.5-3.5 mm;
preferably, the thickness of the thin-walled structure 7 is 3 mm.
Example 3:
an automobile steering device comprises a steering device shell 6, a steering device adjusting mechanism and a gear, wherein the steering device adjusting mechanism is the steering device adjusting mechanism in embodiment 1 or 2, the gear and the steering device adjusting mechanism are both arranged in the steering device shell 6, and one end, far away from a pressing block 4, of a rack 5 in the steering device adjusting mechanism is meshed with the gear.
Specifically, the pressing block 4, the spring 3 and the pressing block screw plug 2 in the steering gear adjusting mechanism are coaxially arranged in the steering gear shell 6, and the pressing block screw plug 2 is in threaded connection with the steering gear shell 6.
Further, as shown in fig. 1 and fig. 2, the thin-walled structure 7 on the pressing block plug 2 is close to one side of the steering gear housing 6, and the radial reamer-type riveting point 1 on the pressing block plug 2 is punched and riveted to the side close to the steering gear housing 6.
Specifically, as shown in fig. 1 and 3, the pressure block screw plug 2 is sunk by 1-2mm in the axial direction with respect to the end face of the steering gear housing 6; the utility model discloses, after the assembly is accomplished, 2 axial dimensions of briquetting plug screw design are for sinking 6 terminal surfaces 1-2mm of steering gear casing after the assembly is accomplished, avoid radial reaming formula riveting point 1 to appear in the terminal surface chamfer department, influence riveting intensity.
Example 4: is a preferred embodiment of embodiment 3
The difference from example 3 is that: the pressure piece screw plug 2 sinks by 2mm in the axial direction relative to the end face of the steering gear housing 6.
The assembly principle of this application: the rack 5, the pressing block 4 and the spring 3 are sequentially installed in the steering gear shell 6, the pressing block screw plug 2 is finally placed in, the pressure of the spring 3 on the pressing block 4 is adjusted by adjusting the axial position of the pressing block screw plug 2, so that a proper meshing gap between the gear and the rack 5 is realized (under a certain torque, the gap is about 0.05mm, abnormal noise is caused by overlarge gap, abnormal abrasion is caused by undersize gap), after the gap adjustment is completed, hole expanding type radial punching riveting is performed on the pressing block screw plug 2, the pressing block screw plug 2 cannot sink due to radial stress, no influence is caused on the meshing gap, after the assembly of the pressing block screw plug 2 is completed, in the steering gear shell 6, the end face sinks by 2mm relative to the steering gear shell 6, and the problem of insufficient radial punching riveting amount caused by chamfering of the shell 2 is avoided.
The utility model discloses a steering gear adjusting mechanism, through carrying out the disposable six point radial expanding type riveting to the briquetting plug screw after clearance adjustment is accomplished, avoid the axial to dash the meshing clearance change that the riveting screw sinks and cause, prevent that briquetting plug screw from coming loose to and briquetting plug screw moment decay even durable back comes loose; the arranged thin-wall structure is used as a hole expanding area, so that hole expanding and riveting can be conveniently realized; the riveting can be carried out at one time, the production takt is improved, the production cost is reduced, the change of an axial meshing clearance can be avoided, and the loosening of a pressing block plug screw is prevented;
the utility model discloses an automobile steering device, briquetting plug screw axial dimensions design for sink steering device housing face 1-2mm after the assembly is accomplished, avoid radial reaming formula riveting point to appear in terminal surface chamfer department, influence riveting intensity.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A steering gear adjustment mechanism characterized by: comprises a pressing block (4), a rack (5), a spring (3) and a pressing block screw plug (2);
one end of the pressing block (4) close to the rack (5) is of an arc concave surface structure and is in tight fit with the cylindrical surface of the rack (5);
one end of the spring (3) is arranged in a hollow structure at one end of the pressing block (4) far away from the rack (5), and the other end of the spring is arranged in a hollow structure at one end of the pressing block screw plug (2) close to the pressing block (4);
the pressing block screw plug (2) is provided with at least three radial hole expanding type riveting points (1), and the axial position of the pressing block screw plug (2) is used for adjusting the pressure of the spring (3) on the pressing block (4).
2. The steering gear adjustment mechanism of claim 1, wherein: the pressing block screw plug (2) is further provided with a thin-wall structure (7), the thin-wall structure (7) is arranged on the outer ring of the pressing block screw plug (2), and the radial hole expanding type riveting point (1) is punched and riveted towards the direction close to the thin-wall structure (7).
3. The steering gear adjustment mechanism of claim 2, wherein: six radial hole expanding type riveting points (1) are arranged on the pressing block screw plug (2).
4. The steering gear adjustment mechanism of claim 2, wherein: the thickness of the thin-wall structure (7) is 2.5-3.5 mm.
5. The steering gear adjustment mechanism of claim 1, wherein: the pressing block (4) is of a cylindrical hollow structure, one end of the pressing block is of an arc concave surface structure, and a gasket (8) is arranged on one side, close to the rack (5), of the arc concave surface.
6. The steering gear adjustment mechanism of claim 5, wherein: at least one circle of groove is arranged on the circumferential surface of the pressing block (4), and a circular sealing ring (9) is arranged in the groove.
7. An automobile steering device is characterized by comprising a steering device shell (6), a steering device adjusting mechanism and a gear, wherein the steering device adjusting mechanism is the steering device adjusting mechanism of any one of claims 1 to 6, the gear and the steering device adjusting mechanism are both arranged in the steering device shell (6), and one end, far away from a pressing block (4), of a rack (5) in the steering device adjusting mechanism is meshed with the gear.
8. The steering gear for a vehicle according to claim 7, wherein: the pressure block (4), the spring (3) and the pressure block screw plug (2) in the steering gear adjusting mechanism are coaxially arranged in the steering gear shell (6), and the pressure block screw plug (2) is in threaded connection with the steering gear shell (6).
9. The steering gear for a vehicle according to claim 8, wherein: the thin-wall structure (7) on the pressing block plug screw (2) is close to one side of the steering gear shell (6), and the radial hole expanding type riveting point (1) on the pressing block plug screw (2) is punched and riveted to the side close to the steering gear shell (6).
10. The steering gear for a vehicle according to claim 8, wherein: the pressure block screw plug (2) sinks 1-2mm in the axial direction relative to the end face of the steering gear shell (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651826.2U CN210101739U (en) | 2019-05-08 | 2019-05-08 | Steering gear adjusting mechanism and automobile steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651826.2U CN210101739U (en) | 2019-05-08 | 2019-05-08 | Steering gear adjusting mechanism and automobile steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210101739U true CN210101739U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920651826.2U Active CN210101739U (en) | 2019-05-08 | 2019-05-08 | Steering gear adjusting mechanism and automobile steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210101739U (en) |
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2019
- 2019-05-08 CN CN201920651826.2U patent/CN210101739U/en active Active
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