CN210290554U - Wear-resisting type commercial car brake shoe structure - Google Patents
Wear-resisting type commercial car brake shoe structure Download PDFInfo
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- CN210290554U CN210290554U CN201920544685.4U CN201920544685U CN210290554U CN 210290554 U CN210290554 U CN 210290554U CN 201920544685 U CN201920544685 U CN 201920544685U CN 210290554 U CN210290554 U CN 210290554U
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Abstract
The utility model provides a wear-resistant brake shoe structure of a commercial vehicle, which comprises an arc plate A, a fixing bolt and a fixing nut; the outer side of the top end face of the arc plate A is welded with the arc plate B; the outer wall of the arc-shaped plate B is symmetrically provided with two trapezoidal grooves; the outer wall of the arc-shaped plate B is in an annular array shape, and six groups of two circular holes are formed in each group. The device has lower maintenance cost, on one hand, due to the arrangement of the wear-resistant sleeve, when the wear-resistant sleeve is worn due to repeated braking after being used for a period of time, the wear-resistant sleeve can be replaced independently and can be reused, so that the maintenance cost is saved; on the other hand, because of fixing bolt, fixation nut and arc B's cooperation setting, through fixing bolt and fixation nut's connection fastening, can replace fixing bolt direct and arc B threaded connection's mode, prevent when using fixing bolt and the direct threaded connection of arc B, need change whole arc B because of the screw thread damage, cause cost of maintenance's rising.
Description
Technical Field
The utility model belongs to the technical field of vehicle arresting gear, more specifically says, in particular to wear-resisting type commercial car brake shoe structure.
Background
The vehicle brake is an important part of the vehicle and is the key for ensuring the driving safety. Currently used vehicle brakes include drum brakes and disc brakes. The drum brake mainly comprises a bottom plate, a brake drum, brake shoes, a wheel cylinder, a return spring and other parts. The brake drum is arranged on the wheel hub and rotates along with the wheel, when braking is carried out, the wheel cylinder piston pushes the brake shoe to press the brake drum, and the brake drum is subjected to friction deceleration to force the wheel to stop rotating. Drum brakes are relatively conventional brakes and are widely used because of their low cost and good braking performance.
Based on the above, the existing wear-resistant brake shoe structure mainly has the following defects:
one is, the problem of high maintenance cost, most of drum brake shoes are of a semicircular structure, and the semicircular brake shoes rotate around a pin shaft at a certain angle in the braking principle so as to enable a brake pad on the outer wall of each brake shoe to be in friction deceleration with the brake drum, but not only can the brake pad be worn in a long-term braking process, but also pin shaft holes in the brake shoes can be seriously worn; moreover, the safety is low, in the prior art, the brake pad and the brake shoe are only fixed through bolts, the fixing structure is single, and the possibility of falling of the brake pad still exists.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a wear-resistant brake shoe structure for a commercial vehicle is provided, so as to achieve a more practical purpose.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a wear-resisting type commercial car brake shoe structure, with the higher problem of current cost of maintenance of solution, the drum brake shoe is mostly semi-circular structure, and it is at the brake principle that semi-circular brake shoe carries out certain angle rotation around the round pin axle so that brake block and the brake drum on the brake shoe outer wall carry out the friction speed reduction, but long-term brake in-process not only the brake block can receive wearing and tearing, the round pin shaft hole on the brake shoe also can wear seriously, most of round pin shaft hole is seted up on semi-circular brake shoe among the prior art, if wear seriously need change whole brake shoe, cost of maintenance is higher, and the brake block is fixed through the screw hole on bolt and the brake shoe among the prior art mostly, if the screw hole damages on the brake shoe, need change whole brake shoe during the maintenance, cost of maintenance is higher; moreover, the safety is lower, in the prior art, the brake pad and the brake shoe are only fixed through bolts, the fixing structure is single, and the problem that the brake pad is likely to fall off still exists.
The utility model discloses purpose and efficiency of wear-resisting type commercial car brake shoe structure are reached by following specific technological means:
the wear-resistant brake shoe structure for the commercial vehicle comprises an arc-shaped plate A, an arc-shaped plate B, a trapezoidal groove, a cylindrical bulge, a rotating shaft hole, a circular hole, a hexagonal groove, a wear-resistant sleeve, a reinforcing rib, a brake pad, a trapezoidal bulge, a fixing hole, a fixing bolt and a fixing nut; the outer side of the top end face of the arc plate A is welded with the arc plate B; the outer wall of the arc-shaped plate B is symmetrically provided with two trapezoidal grooves; the rotating shaft hole is formed above the top end face of the arc-shaped plate B, and six trapezoidal grooves are formed in the inner wall of the rotating shaft hole in an annular array shape; the outer wall of the arc-shaped plate B is provided with six groups of two circular holes in each group in an annular array shape; three reinforcing ribs are welded between the arc plate A and the arc plate B; the brake pad is of an arc-shaped structure, and six groups of two fixing holes are formed in the outer wall of the brake pad in an annular array shape; the fixing holes are of a stepped hole structure, and the positions of the fixing holes correspond to the positions of the circular holes; the fixing bolt penetrates through the fixing hole, the circular hole and the hexagonal groove, one fixing nut is connected to the fixing bolt in a threaded mode, and the fixing nut is embedded into the hexagonal groove.
Further, arc B outer wall is located two it has seted up a plurality of to be annular array form between the dovetail groove the cylindricality is protruding, just the cylindricality is protruding to be triangular column structure.
Furthermore, the inner wall of the arc-shaped plate B is provided with six groups of two hexagonal grooves in each group in an annular array shape, the hexagonal grooves correspond to the circular holes in position and are communicated with the circular holes, and the size of each hexagonal groove is the same as that of each fixing nut.
Furthermore, the wear-resistant sleeve is of a cylindrical tubular structure, six trapezoidal bulges are welded on the outer wall of the wear-resistant sleeve in an annular array shape, and the trapezoidal bulges are the same as the trapezoidal grooves formed in the inner wall of the rotating shaft hole in size and are corresponding in position.
Furthermore, two trapezoidal bulges are symmetrically arranged on the inner wall of the brake pad, and the size of each trapezoidal bulge is the same as that of the corresponding trapezoidal groove, and the trapezoidal bulges correspond to the trapezoidal grooves in position.
Compared with the prior art, the utility model discloses following beneficial effect has:
the brake pad and the arc-shaped plate B are connected with high stability, so that the brake pad can be prevented from falling off from the arc-shaped plate B during braking, and on one hand, the outer wall of the arc-shaped plate B is positioned between the two trapezoidal grooves and is provided with a plurality of cylindrical protrusions in an annular array shape, and the cylindrical protrusions are of a triangular columnar structure, so that the friction resistance between the brake pad and the arc-shaped plate B can be enhanced, and the stress of a fixing bolt can be relieved; on the other hand, because the inner wall of the brake block is symmetrically provided with two trapezoidal bulges, the sizes of the trapezoidal bulges are the same as those of the trapezoidal grooves, and the positions of the trapezoidal bulges correspond to those of the trapezoidal grooves, so that the trapezoidal bulges on the brake block can be slidably connected into the trapezoidal grooves during installation, and the connection tightness between the brake block and the brake block can be further enhanced.
The device has lower maintenance cost, on one hand, due to the arrangement of the wear-resistant sleeve, when the wear-resistant sleeve is worn due to repeated braking after being used for a period of time, the wear-resistant sleeve can be replaced independently and can be reused, so that the maintenance cost is saved; on the other hand, because of fixing bolt, fixation nut and arc B's cooperation setting, through fixing bolt and fixation nut's connection fastening, can replace fixing bolt direct and arc B threaded connection's mode, prevent when using fixing bolt and the direct threaded connection of arc B, need change whole arc B because of the screw thread damage, cause cost of maintenance's rising.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic axial view of the present invention.
Fig. 3 is a schematic view of the axial split structure of the present invention.
Fig. 4 is the axial view structure diagram of the utility model after the brake block, the fixing bolt and the fixing nut are removed.
Fig. 5 is an enlarged schematic view of fig. 4 a according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an arc-shaped plate A; 2. an arc-shaped plate B; 201. a trapezoidal groove; 202. a columnar protrusion; 203. a rotating shaft hole; 204. a circular hole; 205. a hexagonal groove; 3. a wear-resistant sleeve; 4. reinforcing ribs; 5. a brake pad; 501. A trapezoidal protrusion; 502. a fixing hole; 6. fixing the bolt; 7. fixing a nut;
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 5:
the utility model provides a wear-resisting type commercial car brake shoe structure, including arc A1, arc B2, trapezoidal groove 201, cylindricality arch 202, pivot hole 203, circular port 204, hexagonal groove 205, wear-resisting sleeve pipe 3, strengthening rib 4, brake block 5, trapezoidal arch 501, fixed orifices 502, fixing bolt 6 and fixation nut 7; the outer side of the top end face of the arc plate A1 is welded with the arc plate B2; the outer wall of the arc-shaped plate B2 is symmetrically provided with two trapezoidal grooves 201; the rotating shaft hole 203 is formed above the top end face of the arc-shaped plate B2, and six trapezoidal grooves are formed in the inner wall of the rotating shaft hole 203 in an annular array shape; the outer wall of the arc-shaped plate B2 is provided with six groups of two circular holes 204 in each group in an annular array shape; three reinforcing ribs 4 are welded between the arc plate A1 and the arc plate B2; the brake pad 5 is of an arc-shaped structure, and six groups of two fixing holes 502 are formed in the outer wall of the brake pad 5 in an annular array shape; the fixing hole 502 is a stepped hole structure, and the position of the fixing hole 502 corresponds to the position of the circular hole 204; the fixing bolt 6 passes through the fixing hole 502, the circular hole 204 and the hexagonal groove 205, and one fixing nut 7 is screwed to the fixing bolt 6, and the fixing nut 7 is embedded in the hexagonal groove 205.
The outer wall of the arc-shaped plate B2 is located between two trapezoid grooves 201, a plurality of columnar protrusions 202 are arranged in an annular array, and the columnar protrusions 202 are triangular columnar structures, so that the friction resistance between the brake pad 5 and the arc-shaped plate B2 can be enhanced, and the stress of the fixing bolt 6 can be relieved.
The inner wall of the arc-shaped plate B2 is provided with six sets of two hexagonal grooves 205 in each set in an annular array, the hexagonal grooves 205 correspond to and are communicated with the circular holes 204, and the size of the hexagonal grooves 205 is the same as that of the fixing nut 7, so that the fixing nut 7 can be prevented from loosening after the fixing nut 7 is screwed down.
The wear-resistant sleeve 3 is of a cylindrical tubular structure, six trapezoidal protrusions are welded on the outer wall of the wear-resistant sleeve 3 in an annular array mode, the trapezoidal protrusions are identical to the trapezoidal grooves formed in the inner wall of the rotating shaft hole 203 in size and correspond to the trapezoidal grooves in position, and therefore the wear-resistant sleeve 3 and the rotating shaft hole 203 can be prevented from axially rotating.
The inner wall of the brake pad 5 is symmetrically provided with two trapezoidal protrusions 501, the size of each trapezoidal protrusion 501 is equal to that of the corresponding trapezoidal groove 201, and the corresponding trapezoidal protrusions 501 correspond to the trapezoidal grooves 201 in position, so that the trapezoidal protrusions 501 are slidably connected to the trapezoidal grooves 201 on the brake pad 5 during installation, and the connection tightness between the brake pad 5 and the brake pad 5 can be further enhanced.
The specific use mode and function of the embodiment are as follows:
when in use, firstly, during assembly, the brake pad 5 is connected in the trapezoidal groove 201 on the arc-shaped plate B2 in a sliding way through the trapezoidal protrusion 501, then the fixing bolt 6 is used for penetrating through the fixing hole 502, the circular hole 204 and the hexagonal groove 205 and is in threaded connection with the fixing nut 7 embedded in the hexagonal groove 205 to complete installation;
in the use process, firstly, a plurality of cylindrical protrusions 202 are arranged on the outer wall of the arc-shaped plate B2 between the two trapezoidal grooves 201 in an annular array manner, and the cylindrical protrusions 202 are in a triangular columnar structure, so that the friction resistance between the brake pad 5 and the arc-shaped plate B2 can be enhanced, and the stress of the fixing bolt 6 can be relieved;
secondly, two trapezoidal protrusions 501 are symmetrically arranged on the inner wall of the brake pad 5, and the size of each trapezoidal protrusion 501 is the same as that of the corresponding trapezoidal groove 201, and the trapezoidal protrusions 501 correspond to the trapezoidal grooves 201 in position, so that the trapezoidal protrusions 501 on the brake pad 5 can be slidably connected into the trapezoidal grooves 201 during installation, and the connection tightness between the brake pad 5 and the brake pad 5 can be further enhanced;
thirdly, due to the arrangement of the wear-resistant sleeve 3, when the wear-resistant sleeve 3 is worn due to repeated braking after being used for a period of time, the wear-resistant sleeve 3 can be replaced independently and can be reused, so that the maintenance cost is saved;
fourth, because of fixing bolt 6, fixation nut 7 and arc B2's cooperation sets up, on the one hand, can prevent that fixation nut 7 is not hard up because of the setting of hexagon groove 205 on the arc B, on the other hand, through fixing bolt 6 and fixation nut 7's connection fastening, can replace fixing bolt 6 direct and arc B2 threaded connection's mode, prevent when using fixing bolt 6 and arc B2 direct threaded connection, need to change whole arc B2 because of the screw thread damage, cause cost of maintenance's rising.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. Wear-resisting type commercial car brake shoe structure, its characterized in that: the wear-resistant brake shoe structure for the commercial vehicle comprises an arc-shaped plate A (1), an arc-shaped plate B (2), a trapezoidal groove (201), a cylindrical protrusion (202), a rotating shaft hole (203), a circular hole (204), a hexagonal groove (205), a wear-resistant sleeve (3), a reinforcing rib (4), a brake pad (5), a trapezoidal protrusion (501), a fixing hole (502), a fixing bolt (6) and a fixing nut (7); the outer side of the top end face of the arc-shaped plate A (1) is welded with the arc-shaped plate B (2); the outer wall of the arc-shaped plate B (2) is symmetrically provided with two trapezoidal grooves (201); the rotating shaft hole (203) is formed in the position above the top end face of the arc-shaped plate B (2), and six trapezoidal grooves are formed in the inner wall of the rotating shaft hole (203) in an annular array shape; the outer wall of the arc-shaped plate B (2) is provided with six groups of two circular holes (204) in each group in an annular array shape; three reinforcing ribs (4) are welded between the arc-shaped plate A (1) and the arc-shaped plate B (2); the brake block (5) is of an arc-shaped structure, and six groups of two fixing holes (502) are formed in the outer wall of the brake block (5) in an annular array shape; the fixing hole (502) is of a stepped hole structure, and the position of the fixing hole (502) corresponds to the position of the circular hole (204); the fixing bolt (6) penetrates through the fixing hole (502), the circular hole (204) and the hexagonal groove (205), the fixing nut (7) is connected to the fixing bolt (6) in a threaded mode, and the fixing nut (7) is embedded in the hexagonal groove (205).
2. The wear-resistant commercial vehicle brake shoe structure of claim 1, wherein: arc B (2) outer wall is located two it has seted up a plurality of to be annular array form between dovetail groove (201) the cylindricality is protruding (202), just the cylindricality is protruding (202) for triangular column structure.
3. The wear-resistant commercial vehicle brake shoe structure of claim 1, wherein: six groups of two hexagonal grooves (205) are formed in the inner wall of the arc-shaped plate B (2) in an annular array shape, the hexagonal grooves (205) correspond to the circular holes (204) in position and are communicated with each other, and the size of the hexagonal grooves (205) is the same as that of the fixing nuts (7).
4. The wear-resistant commercial vehicle brake shoe structure of claim 1, wherein: wear-resisting sleeve pipe (3) are cylinder tubular structure, just wear-resisting sleeve pipe (3) outer wall is the welding of annular array form and has six trapezoidal archs, and this trapezoidal arch with the dovetail groove size that pivot hole (203) inner wall was seted up is the same and the position is corresponding.
5. The wear-resistant commercial vehicle brake shoe structure of claim 1, wherein: the brake block (5) inner wall symmetry is provided with two trapezoidal arch (501), just trapezoidal arch (501) size with trapezoidal groove (201) size is the same and the position is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544685.4U CN210290554U (en) | 2019-04-22 | 2019-04-22 | Wear-resisting type commercial car brake shoe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544685.4U CN210290554U (en) | 2019-04-22 | 2019-04-22 | Wear-resisting type commercial car brake shoe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290554U true CN210290554U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544685.4U Active CN210290554U (en) | 2019-04-22 | 2019-04-22 | Wear-resisting type commercial car brake shoe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290554U (en) |
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2019
- 2019-04-22 CN CN201920544685.4U patent/CN210290554U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200515 Address after: 442000 Shiyan City, Hubei province Maojian District Wudang Road No. 108 Patentee after: Shiyan Baolun Auto Parts Co., Ltd Address before: 442000 Shiyan City, Hubei province city Zhangwan District Road No. 255 Patentee before: HUBEI ZANBO INFORMATION TECHNOLOGY Co.,Ltd. |