CN202274018U - Drum brake with adjustment modules - Google Patents
Drum brake with adjustment modules Download PDFInfo
- Publication number
- CN202274018U CN202274018U CN2011202622947U CN201120262294U CN202274018U CN 202274018 U CN202274018 U CN 202274018U CN 2011202622947 U CN2011202622947 U CN 2011202622947U CN 201120262294 U CN201120262294 U CN 201120262294U CN 202274018 U CN202274018 U CN 202274018U
- Authority
- CN
- China
- Prior art keywords
- adjusting module
- brake shoe
- brake
- drum
- adjustment modules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to automobile parts, in particular to a drum brake with adjustment modules. The drum brake mainly comprises a brake drum, a brake shoe, a cam and a friction plate, wherein a cam shaft applies a force to the cam to make the cam rotate; and return springs apply the forces to the cam to make the cam return and contacted with the brake shoe. The drum brake is characterized in that: the adjustment modules are arranged at a supporting end of the brake shoe; the adjustment modules and the brake shoe are matched by using an arc surface in a revolute pair mode; and the adjustment modules and a base are matched in a moving pair mode and fixed by using fixing pieces. By arranging a plurality of individual adjustment modules of different dimensions or arranging gaskets which are applicable to the adjustment modules and have different thicknesses, the position of the brake shoe which is matched with the adjustment modules can be adjusted. The production process of the adjustment modules is simple, the adjustment modules are convenient to replace, and the production cost and operating cost of the drum brake are reduced.
Description
Technical field:
The utility model relates to automobile component, particularly disposes the drum brake of adjusting module.
Background technique:
The drum brake that medium and heavy in the market automobile adopts generally adopts supporting pin as the fixed support point, and brake shoe contacts with brake drum through cam rotation, and the cam end friction plate weares and teares gradually and becomes big; Be difficult to contact brake drum and supporting pin end friction disc wear is small again, cause the braking area of contact to reduce, friction weakens with joint efforts gradually; Caused problems such as friction plate waste and brake system failure with this, retrieved each patent, some is applicable to that the two ends of the drum brake of hydraulic pressure all can adjust; The intermediate portion of shoes is fixed, and such structure braking force is little, can not use on the big-and-middle heavy-duty car; Be applicable to the drum brake of air pressure, part is made improved structure in cam end, can not solve the essential problem that support end can't contact brake drum; Part is made improved structure at support end, and complex manufacturing can't industrialization.
Summary of the invention:
The purpose of the utility model is the defective that overcomes existing technology, provides to produce simply practicality, the drum brake that disposes adjusting module easy to adjust.
The technological scheme of the utility model is:
The above-mentioned drum brake that is equipped with adjusting module; Mainly comprise brake drum, brake shoe, cam and friction plate; Cam is rotated by the camshaft application of force and the return spring application of force resets and the brake shoe contact matching; The supported end that it is characterized in that brake shoe disposes adjusting module, and adjusting module cooperates by the mode of cambered surface with revolute pair with brake shoe, and adjusting module and base cooperate with the mode of sliding pair and fix through fixed member; The a plurality of independent adjusting module that differs through configuration sized perhaps disposes the pad of the confession adjusting module use of corresponding different-thickness, and the adjustable positions at the brake shoe position that cooperates with adjusting module is whole.
The cambered surface right ends of described adjusting module is provided with the obstruct part that hinders the brake shoe side-to-side movement.
The mating part of described adjusting module and brake shoe is the part cylindrical body cavity that hollows out; Or being outstanding part cylindrical body entity, brake shoe shape and adjusting module shape scarf are mutually closed.
The part that described adjusting module cooperates with base is groove or cuboid, and base shape and adjusting module shape scarf are mutually closed.
Described adjusting module and base comprise that at least one can install and fix the hole of parts.
Described brake shoe up and down is connected with adjusting module through return spring.
Because adopt said structure, the utility model is compared with original drum brake has beneficial effect: after the friction plate of support end omited wiping along with the running of break, the friction plate of support end no longer contacted with brake drum; At this time change and go up adjusting module; Make brake drum support end level outwards move, at this moment, contact with brake drum once more near the friction plate of support end; Increase friction area, increase braking force.The adjusting module production technology is simple, and it is convenient to change, and has also reduced the cost of production and the operating cost of drum brake simultaneously.
Description of drawings:
In order better to understand the utility model, through with reference to accompanying drawing, the embodiment that it provides through instance is described earlier, in the accompanying drawing:
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the structural representation of the utility model embodiment 1 support end;
Fig. 3 is the structural representation of the utility model embodiment 1 adjusting module;
Fig. 4 is the structural representation of the utility model embodiment 2 adjusting module;
Fig. 5 is the structural representation of the utility model embodiment 3 adjusting module.
Embodiment:
Below according to the embodiment of description of drawings the utility model.
As shown in Figure 1, this is first embodiment of the utility model, is equipped with the drum brake of adjusting module; Mainly comprise brake drum, brake shoe, cam and friction plate, cam is rotated by the camshaft application of force and the return spring application of force resets and the brake shoe contact matching, and the support end of brake shoe disposes adjusting module; The mating part of adjusting module and brake shoe is the part cylindrical body; Adjusting module and base plate mating part are cuboid, leave two screws on adjusting module and the base, through two nut fixed bases and adjusting module; Base and braking bottom board are connected as a single entity, and brake shoe connects the location through the return spring on both sides up and down.Along with the wearing and tearing of support end friction plate, substitute in good time and go up another piece adjusting module, the two ends up and down of this adjusting module are longer than the adjusting module that is substituted, the purpose that brake shoe expands outwardly about reaching.
As shown in Figure 4; This is second embodiment of the utility model; Basic structure and embodiment one roughly the same, the mating part of adjusting module and brake shoe is the part cylindrical body, adjusting module and base plate mating part are groove; The base that cooperates with it is the respective cuboid shape, and base is connected with dust-proof cover through nut is fixing.
As shown in Figure 5; This is the 3rd embodiment of the utility model; Basic structure and embodiment one roughly the same, the mating part of adjusting module and brake shoe is the cylindrical cavity of part, adjustment wooden unit and base plate mating part are groove; The brake shoe that cooperates with it is corresponding cylindrical shape, and the base that cooperates with it is corresponding rectangular shape.
Claims (6)
1. dispose the drum brake of adjusting module; Mainly comprise brake drum (1), brake shoe (2), cam (3) and friction plate (4); Cam (3) is rotated by the camshaft application of force and return spring (5) application of force resets and brake shoe (2) contact matching; The supported end (6) that it is characterized in that brake shoe (2) disposes adjusting module (7); Adjusting module (7) cooperates by the mode of cambered surface with revolute pair with brake shoe (2); Adjusting module (7) and base (12) cooperate with the mode of sliding pair and are fixing through fixed member (13), the pad that a plurality of independent adjusting module (7) that differs through configuration sized or the confession adjusting module that disposes corresponding different-thickness use, and the adjustable positions at brake shoe (2) position that cooperates with adjusting module (7) is put in order.
2. drum brake according to claim 1 is characterized in that the cambered surface right ends of adjusting module (7) is provided with the obstruct part (11) that hinders the brake shoe side-to-side movement.
3. drum brake according to claim 2 is characterized in that the adjusting module (7) and the mating part of brake shoe are the part cylindrical body cavity (81) that hollows out; Or being outstanding part cylindrical body entity (82), brake shoe (2) shape and adjusting module (7) shape scarf are mutually closed.
4. drum brake according to claim 1 is characterized in that the part that adjusting module (7) cooperates with base (12) is groove (91) or cuboid (92), and base (12) shape and adjusting module (7) shape scarf are mutually closed.
5. drum brake according to claim 4 is characterized in that adjusting module (7) and base (12) comprise that at least one can install and fix the hole of parts (10).
6. drum brake according to claim 1 is characterized in that brake shoe (2) is connected with adjusting module through return spring (14) up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202622947U CN202274018U (en) | 2011-07-22 | 2011-07-22 | Drum brake with adjustment modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202622947U CN202274018U (en) | 2011-07-22 | 2011-07-22 | Drum brake with adjustment modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274018U true CN202274018U (en) | 2012-06-13 |
Family
ID=46194379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202622947U Expired - Fee Related CN202274018U (en) | 2011-07-22 | 2011-07-22 | Drum brake with adjustment modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274018U (en) |
-
2011
- 2011-07-22 CN CN2011202622947U patent/CN202274018U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |