CN220416061U - Brake camshaft structure and axle - Google Patents
Brake camshaft structure and axle Download PDFInfo
- Publication number
- CN220416061U CN220416061U CN202321148814.0U CN202321148814U CN220416061U CN 220416061 U CN220416061 U CN 220416061U CN 202321148814 U CN202321148814 U CN 202321148814U CN 220416061 U CN220416061 U CN 220416061U
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- axle
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- hole
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- 230000002093 peripheral effect Effects 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a brake camshaft structure and an axle, wherein the brake camshaft structure is arranged on the axle and comprises a bracket arranged on the axle and a camshaft arranged on the bracket; the bracket is provided with a main body part, a fixing part and a positioning part, wherein the main body part is provided with a shaft hole along the axial direction of the axle, the fixing part and the positioning part are positioned outside the shaft hole, the fixing part is fixed on the axle and extends outwards from the main body part, the positioning part extends outwards from one side of the main body part, which is close to the fixing part, and a positioning hole for connecting the adjusting rod is formed along the axial direction of the axle; the cam shaft is provided with a driving end used for being connected with the adjusting arm, and the driving end is arranged in the shaft hole through a bearing. Through this structural design to reach the purpose of simplifying the structure, not only improve assembly efficiency, and required mould reduces, further reduce cost.
Description
Technical Field
The utility model relates to the technical field of automobile brakes, in particular to a brake cam shaft structure and an axle.
Background
The existing heavy vehicle brake comprises a supporting plate, a cam shaft, a rod frame and an adjusting arm, wherein the supporting plate is fixed on an axle, a cam is arranged at the driven end of the cam shaft, the driving end of the cam shaft is arranged on the supporting plate, the rod frame is fixed on the surface, far away from the cam, of the supporting plate, the adjusting arm is connected with the driving end to drive the cam shaft to rotate, and a control arm of the adjusting arm is fixedly connected with the rod frame through an adjusting rod. However, the existing brake is not only inefficient in assembly but also requires an increased number of molds.
Disclosure of Invention
In view of the shortcomings of the prior art, the utility model aims to provide a brake cam shaft structure and an axle, which can improve assembly efficiency by simplifying the structure.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
the brake cam shaft structure is arranged on an axle and comprises a bracket arranged on the axle and a cam shaft arranged on the bracket;
the support is provided with a main body part, a fixing part and a positioning part, wherein the main body part is provided with a shaft hole along the axial direction of the axle, the fixing part and the positioning part are positioned outside the shaft hole, the fixing part is fixed on the axle and extends outwards from the main body part, the positioning part extends outwards from one side, close to the fixing part, of the main body part and is provided with a positioning hole for connecting an adjusting rod along the axial direction of the axle;
the cam shaft is provided with a driving end used for being connected with the adjusting arm, and the driving end is installed in the shaft hole through a bearing.
Further, the fixing portion extends radially and outwardly of the axle, the fixing portion has a length L1, the camshaft has a diameter D1, and L1 is greater than or equal to 2D1.
Further, the length of the positioning portion is L3, the diameter of the cam shaft is D1, the positioning hole extends along the circumferential direction of the cam shaft, and the length of the positioning hole is L2, and L3 is more than or equal to L2 and is more than or equal to 2D1.
Further, an opening is formed in the outer side wall, far away from one side of the fixing portion, of the main body portion, the opening is communicated with the shaft hole and penetrates through the main body portion along the axial direction of the axle, the diameter of the shaft hole is D2, the diameter of a nozzle tip of the bearing is D3, and the width of the opening is W, and 2/5D2 is larger than or equal to W > D3.
Further, the fixing portion and the positioning portion are integrally formed with the main body portion.
Further, the fixing part is fixed with a fixing plate, the fixing plate extends along the circumferential direction of the axle and is close to the plate surface of the axle to form a fixing surface matched with the peripheral wall of the axle, and the fixing surface is fixed on the peripheral wall of the axle.
Further, the fixing part and the positioning part extend along the radial direction of the axle and the extending directions of the fixing part and the positioning part are mutually perpendicular, the fixing part is welded on the peripheral wall of the axle, and the driving end penetrates out of the axle hole.
According to the support of the camshaft structure of the brake, the fixing part fixed on the axle and the locating part formed by outwards extending one side, close to the fixing part, of the main body part are arranged, and the locating hole for connecting the adjusting rod is formed in the locating part, so that a rod frame for installing the adjusting rod is not required to be additionally arranged, the aim of simplifying the structure is achieved, the assembly efficiency is improved, the required die is reduced, and the cost is further reduced.
The utility model also provides an axle, which comprises an axle, the brake cam shaft structure and an adjusting arm, wherein the brake cam shaft structure is arranged on the axle, the adjusting arm is connected with the driving end and comprises a control arm and an adjusting rod, one end of the adjusting rod is connected with the control arm, the other end of the adjusting rod is matched with the positioning hole, and the adjusting rod is locked with the positioning part through a fastener.
Further, one end of the adjusting rod, which is matched with the positioning hole, is provided with threads, the fastening piece is a nut, and the adjusting rod and the positioning part are locked through the nut.
Drawings
FIG. 1 is a schematic perspective view of a brake camshaft structure according to an embodiment of the present utility model mounted on an axle;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is a front view of the bracket of FIG. 1;
FIG. 4 is a front view of a bracket of a brake camshaft structure according to another embodiment of the present utility model;
fig. 5 is a schematic perspective view of a bracket of a brake camshaft structure according to another embodiment of the present utility model.
Description of the embodiments
The utility model is further described below with reference to the drawings and detailed description:
as shown in fig. 1 to 5, an embodiment of the present utility model provides a brake camshaft structure mounted on an axle 1 of a trailer axle, including a bracket 2 mounted on the axle 1 and a camshaft 3 mounted on the bracket 2.
As shown in fig. 2 and 3, the bracket 2 has a plate-like shape and includes a main body portion 21, a fixing portion 22, and a positioning portion 23, the main body portion 21 is provided with a shaft hole 211 along the axial direction of the axle 1, and the fixing portion 22 and the positioning portion 23 are located outside the shaft hole 211. The fixing portion 22 is fixed to the axle 1 and is formed to extend outwardly from the main body portion 21, specifically, the fixing portion 22 is welded to the outer peripheral wall of the axle 1. More specifically, both the fixing portion 22 and the positioning portion 23 extend in the radial direction of the axle 1 and the extending directions thereof are perpendicular to each other, which not only improves the strength of the bracket 2 but also facilitates the installation of the camshaft 3. The positioning portion 23 is formed by extending outward from a side of the main body portion 21 near the fixing portion 22, and is provided with a positioning hole 231 for connecting the adjustment lever 42 in the axial direction of the axle 1. In the present embodiment, the fixing portion 22 and the positioning portion 23 are integrally formed with the main body portion 21, not only can structural strength be enhanced, but also the structure and mounting process can be simplified. The bracket 2 is provided with the fixing part 22 and the positioning part 23, and the positioning part 23 is provided with the positioning hole 231 for connecting the adjusting rod 42, so that a rod frame for installing the adjusting rod 42 is not required to be additionally arranged, the aim of simplifying the structure is achieved, the assembly efficiency is improved, the required die is reduced, and the cost is further reduced.
As shown in fig. 5, in other embodiments, in order to enhance the connection strength between the bracket 2 and the axle 1, a fixing plate 221 is fixed on the plate edge surface of the fixing portion 22, the fixing plate 221 extends along the circumferential direction of the axle 1 and is close to the plate surface of the axle 1 to form a fixing surface 2211 adapted to the peripheral wall of the axle 1, that is, the fixing surface 2211 is an arc surface and is welded and fixed on the peripheral wall of the axle 1.
As shown in fig. 2, a cam (not shown) is provided at the driven end of the cam shaft 3, the driving end 31 of the cam shaft 3 has a driving end 31 for connecting with the adjusting arm 4, the driving end 31 is mounted in the shaft hole 211 through a bearing 32, and the driving end 31 passes out of the shaft hole 211, in this embodiment, the bearing 32 is a spherical bearing assembly, and the fixing frame of the spherical bearing assembly is fixed to the plate surface of the main body 21 far from the cam through a bolt.
As shown in fig. 2 and 3, in order to ensure the structural strength of the bracket 2 under the condition that the installation space allows, the fixing portion 22 extends along the circumferential direction and outwards of the camshaft 3, wherein the length of the fixing portion 22 is L1, the diameter of the camshaft 3 is D1, L1 is greater than or equal to 2D1, and the specific value of L1 can be selected according to the actual requirement, and in this embodiment, l1=2d1 is preferred. In order to enlarge the application range of the bracket 2, so as to meet the angle installation requirements of different adjusting arms 4, the positioning hole 231 extends along the circumferential direction of the cam shaft 3, wherein the length of the positioning part is L3, the length of the positioning hole 231 is L2, and the taking range of L2 is as follows: l3> L2 is more than or equal to 2D1, and the value range ensures that the length of the positioning hole 231 is increased as much as possible under the condition that the structural strength of the bracket 2 is ensured, and the installation of more types of adjusting arms 4 is satisfied. The specific value of L2 may be selected according to practical requirements, and in this embodiment, L1> l2=2d1, the value is preferred.
More specifically, an opening 212 is formed in the outer side wall of the main body portion 21 far away from the side of the fixing portion 22, the opening 212 is communicated with the shaft hole 211 and penetrates through the main body portion 21 along the axial direction of the axle 1, wherein the diameter of the shaft hole 211 is D2, the diameter of the oil nozzle 5 of the bearing 32 is D3, the width of the opening 212 is W, under the condition that the structural strength of the bracket 2 allows, the oil nozzle 5 is ensured to have a relatively sufficient installation space, and the range of the value of W is as follows: 2/5D2 is more than or equal to W > D3. The specific value of W can be selected according to actual requirements, preferably, 2/5 d2=w, and W > D3. Of course, in other embodiments, the main body 21 of the bracket 2 may not be provided with the opening 212, that is, the bracket 2 may be of a sealed structure (as shown in fig. 4), and the bearings may be reversely mounted at this time, so that the bracket 2 may be prevented from interfering with the oil nozzle. The support 2 adopts a sealing structure, so that the structural strength of the support can be enhanced, deformation generated by stamping can be reduced, the stability of product quality is further improved, and in addition, the deformation risk caused by collision in the transportation process can be reduced.
According to the support of the camshaft structure of the brake, the fixing part fixed on the axle and the locating part formed by outwards extending one side, close to the fixing part, of the main body part are arranged, and the locating hole for connecting the adjusting rod is formed in the locating part, so that a rod frame for installing the adjusting rod is not required to be additionally arranged, the aim of simplifying the structure is achieved, the assembly efficiency is improved, the required die is reduced, and the cost is further reduced.
As shown in fig. 1 and 2, the embodiment of the present utility model further provides an axle, which is a trailer axle, and includes an axle 1, a brake cam shaft structure as described in any of the above embodiments, and an adjusting arm 4, wherein the brake cam shaft structure is mounted on the axle 1, the adjusting arm 4 is connected with the driving end 31 and includes a control arm 41 and an adjusting lever 42, one end of the adjusting lever 42 is connected with the control arm 41 and the other end of the adjusting lever 42 is matched with the positioning hole 231, and the adjusting lever 42 is locked with the positioning portion 23 through a fastener 43. Specifically, one end of the adjusting rod 42, which is engaged with the positioning hole 231, is provided with a screw thread, the fastener 43 is a nut, and the adjusting rod 42 and the positioning portion 23 are locked by the nut.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence.
Claims (9)
1. The brake cam shaft structure is arranged on an axle and is characterized by comprising a bracket arranged on the axle and a cam shaft arranged on the bracket;
the support is provided with a main body part, a fixing part and a positioning part, wherein the main body part is provided with a shaft hole along the axial direction of the axle, the fixing part and the positioning part are positioned outside the shaft hole, the fixing part is fixed on the axle and extends outwards from the main body part, the positioning part extends outwards from one side, close to the fixing part, of the main body part and is provided with a positioning hole for connecting an adjusting rod along the axial direction of the axle;
the cam shaft is provided with a driving end used for being connected with the adjusting arm, and the driving end is installed in the shaft hole through a bearing.
2. The brake camshaft structure of claim 1, wherein the fixing portion extends radially and outwardly of the axle, the fixing portion has a length L1, and the camshaft has a diameter D1, L1 being greater than or equal to 2D1.
3. The brake camshaft structure of claim 1, wherein the length of the positioning portion is L3, the diameter of the camshaft is D1, the positioning hole extends in the circumferential direction of the camshaft, and the length of the positioning hole is L2, L3> L2 ≡2d1.
4. The brake camshaft structure of claim 1, wherein an opening is provided in an outer side wall of the main body portion on a side away from the fixed portion, the opening is communicated with the shaft hole and penetrates through the main body portion in an axial direction of the axle, a diameter of the shaft hole is D2, a diameter of a nipple of the bearing is D3, and a width of the opening is W,2/5D2 is greater than or equal to W > D3.
5. The brake camshaft structure of claim 1, wherein the fixing portion and the positioning portion are integrally formed with the main body portion.
6. The brake camshaft structure according to claim 1, wherein the fixing portion is fixed with a fixing plate that extends in a circumferential direction of the axle and that forms a fixing surface that is fitted to an outer peripheral wall of the axle near a plate surface of the axle, the fixing surface being fixed to the outer peripheral wall of the axle.
7. The brake camshaft structure of claim 1, wherein the fixing portion and the positioning portion both extend in a radial direction of the axle and extend in directions perpendicular to each other, the fixing portion is welded to an outer peripheral wall of the axle, and the driving end passes out of the axle hole.
8. Axle, characterized in that it comprises an axle, a brake camshaft structure according to any one of claims 1 to 7, and an adjusting arm, said brake camshaft structure being mounted on said axle, said adjusting arm being connected with said driving end and comprising a control arm and an adjusting lever, one end of said adjusting lever being connected with said control arm and the other end thereof being fitted with said positioning hole, and said adjusting lever being locked with said positioning portion by means of a fastener.
9. The axle of claim 8 wherein the end of the adjustment rod that mates with the locating hole is threaded and the fastener is a nut, the adjustment rod and the locating portion being locked by the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321148814.0U CN220416061U (en) | 2023-05-15 | 2023-05-15 | Brake camshaft structure and axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321148814.0U CN220416061U (en) | 2023-05-15 | 2023-05-15 | Brake camshaft structure and axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416061U true CN220416061U (en) | 2024-01-30 |
Family
ID=89660213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321148814.0U Active CN220416061U (en) | 2023-05-15 | 2023-05-15 | Brake camshaft structure and axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416061U (en) |
-
2023
- 2023-05-15 CN CN202321148814.0U patent/CN220416061U/en active Active
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