CN222229245U - A progressive adjustable drum brake structure - Google Patents
A progressive adjustable drum brake structure Download PDFInfo
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- CN222229245U CN222229245U CN202421078525.2U CN202421078525U CN222229245U CN 222229245 U CN222229245 U CN 222229245U CN 202421078525 U CN202421078525 U CN 202421078525U CN 222229245 U CN222229245 U CN 222229245U
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- 230000000750 progressive effect Effects 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims description 5
- 210000000003 hoof Anatomy 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
一种渐进式可调鼓刹结构，刹车盘上对称设有两个圆弧形的刹车蹄，刹车蹄外弧面上设有摩擦片，两个刹车蹄的蹄体之间通过复位拉簧拉连，两个刹车蹄的其中一组对应端间设有用于控制两个刹车蹄之间开合度的刹车机构，另一组对应端间设有调节组件，所述调节组件可垂直于两个刹车蹄上下调节，当调节组件向下调节时，调节组件向两侧撑开两个刹车蹄向两面扩张，当调节组件向上调节时，两个刹车蹄在复位拉簧的作用下向中间缩合，所述刹车机构为液压油缸，刹车机构的液压油缸的两头分别与两个刹车蹄连接，液压油缸的其中一端通过圆柱结构与刹车蹄其中之一活动连接。本实用新型能够简便、快捷地调节刹车鼓和摩擦片之间的间隙，以充分利用摩擦片，提高资源利用率。
A progressive adjustable drum brake structure, two arc-shaped brake shoes are symmetrically arranged on the brake disc, friction plates are arranged on the outer arc surface of the brake shoes, the shoe bodies of the two brake shoes are connected by a reset spring, a brake mechanism for controlling the opening and closing degree between the two brake shoes is arranged between one set of corresponding ends of the two brake shoes, and an adjustment component is arranged between the other set of corresponding ends, the adjustment component can be adjusted vertically to the two brake shoes, when the adjustment component is adjusted downward, the adjustment component opens the two brake shoes to both sides to expand, when the adjustment component is adjusted upward, the two brake shoes shrink to the middle under the action of the reset spring, the brake mechanism is a hydraulic cylinder, the two ends of the hydraulic cylinder of the brake mechanism are respectively connected to the two brake shoes, and one end of the hydraulic cylinder is movably connected to one of the brake shoes through a cylindrical structure. The utility model can simply and quickly adjust the gap between the brake drum and the friction plate, so as to make full use of the friction plate and improve resource utilization.
Description
Technical Field
The utility model belongs to the technical field of braking devices, and particularly relates to a drum braking device.
Background
Brakes are the most important safety elements on vehicles, and the braking performance of the vehicle directly affects the running safety of the vehicle. The brake modes of the current vehicles mainly comprise disc brake (disc brake) and drum brake (drum brake). The drum brake is used as an automatic structure of a traditional design, and has low manufacturing cost and wide application. The structure mainly comprises a brake drum, a brake shoe, a supporting pin, a return spring, a brake cam shaft and the like, wherein the brake shoe is controlled to be outwards opened by the brake cam shaft, so that a friction plate on the brake shoe rubs the brake drum to realize braking. When the brake drum or the friction plate is worn, a brake gap is formed, once the brake gap exists, if the brake drum or the friction plate is not replaced in time, the brake is easy to be insensitive, so that potential safety hazards exist when emergency braking is required, and in addition, the use cost is increased by frequent replacement of the friction plate, and resource waste is caused.
Chinese patent document CN202010677477.9 discloses a prismatic self-adaptive drum brake adjusting device, in which a mechanism for adjusting the gap between drum brake shoes is disclosed, and the gap between the brake drum and the friction plate is conveniently and rapidly adjusted by an adjusting component, so as to fully utilize the friction plate and improve the resource utilization rate. However, in this structure, the adjusting assembly is complicated in structure and is difficult to process.
In addition, in the conventional drum brake, since the rotation angle of the brake cam shaft is limited and can only rotate within a specified angle range, the effective brake eccentric amount is fixed, and the outward opening distance of the friction plate cannot be further increased to compensate the brake clearance for the worn friction plate and brake drum. Therefore, even if there is a gap adjustment mechanism between the brake shoes, the effect that can be achieved is limited, and the uneven wear of the friction plate and the decline of the automatic effect are liable to occur.
Disclosure of Invention
The utility model aims to provide a progressive adjustable drum brake structure so as to solve the technical problem of low utilization rate of brake shoes in drum brake.
In order to solve the technical problems, the specific technical scheme of the utility model is as follows:
The utility model provides a progressive adjustable drum structure of stopping, includes brake disc, extension spring and adjusting part restore to the throne, the symmetry is equipped with two convex brake shoes on the brake disc, is equipped with the friction disc on the brake shoe extrados, draws through the extension spring that restores to the throne between the hoof body of two brake shoes and links, is equipped with the brake mechanism that is used for controlling the degree of opening and shutting between two brake shoes between a set of corresponding ends of two brake shoes, is equipped with adjusting part between another set of corresponding ends, but adjusting part perpendicular to two brake shoes are adjusted from top to bottom, and when adjusting part downward adjustment, adjusting part struts two brake shoes to two sides expansion, when adjusting part upward adjusts, two brake shoes are condensed to the centre under the effect of extension spring that restores to the throne, its characterized in that, brake mechanism is hydraulic cylinder, and hydraulic cylinder's two heads are connected with two brake shoes respectively, and one of hydraulic cylinder's one of them swing joint through cylinder structure.
Further, the adjusting assembly comprises an adjusting rod and two sliding blocks, the adjusting rod penetrates through the brake disc and is fixed through an adjusting nut, the sliding blocks are clamped on the end heads of the brake shoes, and the sliding blocks are connected to the two sides of the adjusting rod in a sliding mode;
The adjusting rod is provided with a pair of wedge-shaped side plates, the wedge-shaped side plates are connected with the sliding block in a matched mode, the middle of the adjusting rod is provided with a positioning section, the positioning section is polygonal, the lower portion of the positioning section is connected with a threaded section, and the threaded section is connected with an adjusting nut.
Further, the sliding block is provided with a sliding groove, the sliding groove is a chute, the outside of the sliding block is semi-arc columnar, and the top of the sliding block is provided with a side edge.
Further, the positioning section is of a cuboid structure and is connected with square holes on the brake disc in a matched mode.
Further, a first connecting part and a second connecting part are arranged on the brake disc, and the first connecting part and the second connecting part extend to the outside of the brake disc and are used for being connected with a vehicle body.
The technical scheme of the utility model has the following advantages:
1. The gap between the brake drum and the friction plate is simply, conveniently and rapidly adjusted through the adjusting component, so that the friction plate is fully utilized, the resource utilization rate is improved, and the braking effect is ensured.
Through hydraulic cylinder, avoided traditional drum brake camshaft rotation angle restricted problem, further promoted drum brake braking journey, the friction disc is fully used up.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the adjusting assembly of the present utility model;
FIG. 3 is a schematic view of a slider according to the present utility model;
FIG. 4 is a schematic cross-sectional view of the structure of A-A of the present utility model;
FIG. 5 is a schematic structural diagram of embodiment 2 of the present utility model;
FIG. 6 is a schematic diagram of the combined structure of embodiment 2 of the present utility model;
fig. 7 is a schematic view of the bottom structure of embodiment 2 of the present utility model.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, a progressive adjustable drum brake structure of the present utility model is described in further detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the progressive adjustable drum brake structure comprises a brake disc 1, a reset tension spring 4 and an adjusting component 6, wherein two circular arc-shaped brake shoes 2 are symmetrically arranged on the brake disc 1, friction plates 3 are arranged on the outer cambered surfaces of the brake shoes 2, shoe bodies of the two brake shoes 2 are connected by pulling through the reset tension spring 4, a brake mechanism 5 for controlling the opening and closing degree between the two brake shoes 2 is arranged between one group of corresponding ends of the two brake shoes 2, and an adjusting component 6 is arranged between the other group of corresponding ends.
In the practical application process of the technical scheme of the application, the adjusting component 6 can be vertically adjusted up and down to two brake shoes 2, when the adjusting component is downwardly adjusted, the adjusting component 6 supports the two brake shoes 2 to expand to two sides, when the adjusting component 6 is upwardly adjusted, the two brake shoes 2 are condensed to the middle under the action of the reset tension spring 4, the gap between the friction plate 3 on the brake shoe 2 and the inner side surface of the brake drum is controlled by the adjusting component 6, and after the friction plate 3 is worn and thinned after long-term use, the gap between the friction plate 3 and the inner side surface of the brake drum is enlarged, and the side length is formed by braking. The gap is reduced by the adjusting component 6, so that the full utilization of the friction plate 3 is ensured.
In the practical application process of the technical scheme of the application, the brake mechanism 5 is a hydraulic cylinder, two ends of the hydraulic cylinder of the brake mechanism 5 are respectively connected with two brake shoes 2, and one end of the hydraulic cylinder is movably connected with one of the brake shoes 2 through a cylindrical structure. The cylindrical structure can ensure deflection at a certain angle when the two brake shoes 2 are spread, and avoid the axial receiving of bending stress of the hydraulic cylinder.
Specifically, in this embodiment, the adjusting assembly 6 includes an adjusting rod 62 and two sliding blocks 61, where the adjusting rod 62 passes through the brake disc 1 and is fixed on the other side by an adjusting nut, the sliding blocks 61 are clamped on the ends of the brake shoes 2, the sliding blocks 61 are provided with sliding grooves 611, the sliding grooves 611 are chute grooves and can be connected with wedge-shaped side plates 621 in a matching manner, the wedge-shaped side plates 621 are fixed on two sides of the adjusting rod 62, the sliding blocks 61 can slide up and down on the wedge-shaped side plates 621 on two sides of the adjusting rod 62, and in the sliding process, the distance between the sliding blocks 61 and the axes of the adjusting rod 62 is gradually changed, so as to adjust the gap of the brake shoes 2.
Specifically, the middle part of the adjusting lever 62 is a positioning section 622, the positioning section 622 is a polygonal prism, in this embodiment, a quadrangular prism is selected, and the positioning section 622 is matched with a hole on the brake disc 1 to avoid the relative rotation of the adjusting lever 62 and the brake disc 1. The screw section 623 is connected below the positioning section 622, and the screw section 623 is connected with an adjusting nut for fixing.
Specifically, in the present embodiment, the outer portion of the sliding block 61 is semi-arc-shaped, so that the sliding block 61 can rotate relative to the brake shoe 2 in the horizontal direction. And a side edge 612 is provided on the top of the sliding block 61 to prevent the sliding block 61 from sliding off the brake shoe 2.
Specifically, the positioning section 622 has a cuboid structure, and is connected with a square hole on the brake disc 1 in a matching manner.
Specifically, the brake disc 1 is provided with a first connecting portion 11 and a second connecting portion 12, and the first connecting portion 11 and the second connecting portion 12 extend to the outside of the brake disc 1 for connection with a vehicle body.
Example 2
As shown in fig. 5 to 7, in the present embodiment, the wedge-shaped side plate 621 and the adjusting lever 62 are integrally formed. The benefit of this design is that the mechanism strength is higher and the difficulty of machining the adjustment lever 62 is less.
In this embodiment, a threaded hole 624 is provided below the adjustment rod 62, with the threaded hole 624 replacing the connecting threaded segment 623. Is fixedly connected with the screw through the threaded hole 624 during installation.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides a progressively adjustable drum structure of stopping, includes brake disc (1), extension spring (4) and adjusting part (6) reset, the symmetry is equipped with two convex brake shoes (2) on brake disc (1), be equipped with friction disc (3) on brake shoe (2) the extrados, draw through extension spring (4) reset between the hoof body of two brake shoes (2) and link, be equipped with brake mechanism (5) that are used for controlling the degree of opening and shutting between two brake shoes (2) between two corresponding the ends of two brake shoes (2), be equipped with adjusting part (6) between another group corresponding, adjusting part (6) can perpendicular to two brake shoes (2) are adjusted from top to bottom, when adjusting part down adjusts, and adjusting part (6) struts two brake shoes (2) to two sides expansion, when adjusting part (6) up-regulate, two brake shoes (2) are condensed to the centre under the effect of extension spring (4) reset, its characterized in that, brake mechanism (5) are hydraulic cylinder, and the two ends of the hydraulic cylinder of brake mechanism (5) are connected with two brake cylinders (2) respectively, wherein one of two brake cylinders (2) are connected through one of the cylinder structures.
2. The progressive adjustable drum brake structure according to claim 1, wherein the adjusting assembly (6) comprises an adjusting rod (62) and two sliding blocks (61), the adjusting rod (62) passes through the brake disc (1) and is fixed through an adjusting nut, the sliding blocks (61) are clamped on the end heads of the brake shoes (2), and the sliding blocks (61) are connected to two sides of the adjusting rod (62) in a sliding manner;
A pair of wedge-shaped side plates (621) are arranged on the adjusting rod (62), the wedge-shaped side plates (621) are connected with the sliding block (61) in a matched mode, the middle of the adjusting rod (62) is provided with a positioning section (622), the positioning section (622) is of a polygonal prism shape, a threaded section (623) is connected below the positioning section (622), and the threaded section (623) is connected with an adjusting nut.
3. The progressive adjustable drum brake structure according to claim 2, wherein the sliding block (61) is provided with a chute (611), the chute (611) is a chute, the outside of the sliding block (61) is semi-arc columnar, and the top is provided with a side edge (612).
4. A progressive adjustable drum brake structure according to claim 3, characterized in that the positioning section (622) is of a cuboid structure and is connected with square holes on the brake disc (1) in a matched manner.
5. The progressive adjustable drum brake structure according to claim 4, wherein the brake disc (1) is provided with a first connecting portion (11) and a second connecting portion (12), and the first connecting portion (11) and the second connecting portion (12) extend to the outside of the brake disc (1) for connection with a vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421078525.2U CN222229245U (en) | 2024-05-17 | 2024-05-17 | A progressive adjustable drum brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421078525.2U CN222229245U (en) | 2024-05-17 | 2024-05-17 | A progressive adjustable drum brake structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222229245U true CN222229245U (en) | 2024-12-24 |
Family
ID=93916105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421078525.2U Active CN222229245U (en) | 2024-05-17 | 2024-05-17 | A progressive adjustable drum brake structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222229245U (en) |
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2024
- 2024-05-17 CN CN202421078525.2U patent/CN222229245U/en active Active
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