CN202811928U - Heavy-duty vehicle rear axle brake - Google Patents
Heavy-duty vehicle rear axle brake Download PDFInfo
- Publication number
- CN202811928U CN202811928U CN 201220532800 CN201220532800U CN202811928U CN 202811928 U CN202811928 U CN 202811928U CN 201220532800 CN201220532800 CN 201220532800 CN 201220532800 U CN201220532800 U CN 201220532800U CN 202811928 U CN202811928 U CN 202811928U
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- CN
- China
- Prior art keywords
- brake shoe
- brake
- assembly
- pin
- proof cover
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- 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 - Lifetime
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Abstract
The utility model discloses a heavy-duty vehicle rear axle brake which comprises a brake bottom plate, a brake shoe assembly, an idler wheel, a brake shoe support pin and dustproof covers. The brake bottom plate is provided with a radial extension portion, a pin hole is formed in the extension portion and matched with the brake shoe support pin, and the brake shoe support pin penetrates through the pin hole and is locked by a brake shoe support pin locking piece. The idler wheel is fixedly connected with an idler wheel end of the brake shoe assembly through an idler wheel shaft, and the dustproof covers are composed of an upper dustproof cover and a lower dustproof cover which are respectively fixed on the brake bottom plate. The heavy-duty vehicle rear axle brake has the advantages that a pin shaft fixture method is used for a brake shoe support end, and therefore the brake shoe assembly cannot fall off; a pin shaft connection method is used for connection of a brake shoe and the idler wheel so that the idler wheel cannot fall off; the dustproof covers are in a split structure so that the dustproof covers are convenient to assemble, repair and replace; reliability and durability of a brake assembly are improved; and manufacturing reliability and transportation convenience of the brake assembly are improved, and assembly efficiency of vehicle axles is improved.
Description
Technical field
The utility model relates to a kind of heavy-duty car rear axle brake vi technology, is specifically related to a kind of heavy-duty car rear axle brake vi.
Background technique
Existing heavy truck rear axle brake vi, such as Fig. 1,2, the brake drum inside diameter D, its Φ=420mm, camshaft 4 centers to brake assembly center apart from a=155mm, coordinate position k=38mm, the C=160mm at brake shoe anchor 9 centers.What the support end of brake shoe assembly 2 adopted is the U-shaped opening, and parallel two brake shoe anchors 9 that are fixed on the braking bottom board 1 are stuck in the U-shaped opening, and the support end of brake shoe assembly 2 is short by two return spring 5(in addition) tension; The roller end of brake shoe assembly 2 also adopts the U-shaped opening, and roller 3 is stuck in the U-groove bevel, and is long by a return spring 5() tension, thus roller 3 and camshaft 4 close contacts, and keep brake shoe assembly 2 and braking bottom board 1 to link together.Brake dust adopts monolithic construction, is fixed on the braking bottom board 1 by dust-proof cover fixing bolt 7.
Have following shortcoming: the support end of brake shoe is hatch frame, directly is stuck on the backing pin, and during braking work, brake shoe has the trend that comes off; The roller of brake shoe also has the trend that comes off in the course of the work; The brake dust maintain and replace is inconvenient.Brake drum and tyre rim gap are little, and thermal diffusivity is bad; The braking moment that brake assembly produces is little.
Summary of the invention
The utility model is for the deficiency that exists in the background technique, and the technical problem that solve is: a kind of reliable operation is provided, assembles easy break.
The utility model is for solving the problems of the technologies described above, the technological scheme of taking is: a kind of heavy-duty car rear axle brake vi, comprise braking bottom board, brake shoe assembly, roller, brake shoe anchor and dust-proof cover, its improvement is: braking bottom board is provided with radially extension part, offer pin-and-hole at extension part, pin-and-hole and brake shoe anchor are complementary, and brake shoe anchor passes pin-and-hole, and brake shoe anchor is braked the locking of hoof backing pin locking plate;
Roller is fixedly connected with the roller end of brake shoe assembly by roller shaft;
Dust-proof cover is comprised of upper dust-proof cover and lower dust-proof cover, and upper dust-proof cover and lower dust-proof cover are separately fixed on the braking bottom board.
Further, described brake shoe anchor locking plate is between two brake shoe anchors, and the brake shoe anchor locking plate is fixed on the braking bottom board.
The utility model compared with prior art, beneficial effect is: the brake shoe support end adopts the bearing pin means of fixation, and brake shoe assembly can't be come off; Brake shoe roller adopts the bearing pin Placement, and roller can't be come off; Dust-proof cover adopts split-type structural, is convenient to assembling and maintain and replace.Brake assembly reliability and serviceability have been improved; Process reliability and the convenient transportation of brake assembly have been improved; Improve the vehicle bridge efficiency of assembling.
Description of drawings
Fig. 1 is existing brake assembly assembly structure schematic representation;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the utility model general assembly structural representation;
Fig. 4 is the sectional view of Fig. 3.
Wherein: 1, braking bottom board; 2, brake shoe assembly; 3, roller; 4, camshaft; 5, return spring; 6, return spring pin; 7, dust-proof cover fixing bolt; 8, upper dust-proof cover; 9, brake shoe anchor; 10, locking plate fixing bolt; 11, lower dust-proof cover; 12, brake shoe anchor locking plate; 13, roller shaft; 14, roller packing ring; 15, axle elastic washer.
Embodiment
Below in conjunction with accompanying drawing mode of execution of the present utility model is described in further detail.
See that Fig. 1 is to shown in Figure 4, the heavy-duty car rear axle brake vi, comprise braking bottom board 1, brake shoe assembly 2, roller 3, brake shoe anchor 9 and dust-proof cover, braking bottom board 1 is provided with radially extension part, offer pin-and-hole at extension part, pin-and-hole and brake shoe anchor 9 are complementary, and brake shoe anchor 9 passes pin-and-hole, and brake shoe anchor 9 is braked 12 lockings of hoof backing pin locking plate; Brake shoe anchor locking plate 12 is between two brake shoe anchors 9, and brake shoe anchor locking plate 12 is fixed on the braking bottom board 1.Then be fixedly connected with by brake shoe anchor 9 between the support end of braking bottom board 1 and brake shoe assembly 2, thereby brake shoe assembly 2 and braking bottom board 1 are rigidly connected, between the two after the assembling, guarantee that brake shoe assembly 2 can't come off, the original return spring 5(that has cancelled brake shoe assembly 2 support ends is short).
Roller 3 is fixedly connected with the roller end of brake shoe assembly 2 by roller shaft 13; Roller 3 is rigidly connected with elastic washer 15 and brake shoe assembly 2 by roller shaft 13, roller packing ring 14, axle like this; Return spring 5(is long) make 2 tensions of two brake shoe assemblies by return spring pin 6, guarantee roller 3 and camshaft 4 close contacts, guarantee that roller 3 can't come off in transportation, assembling and using process at brake assembly.
Dust-proof cover is comprised of upper dust-proof cover 8 and lower dust-proof cover 11, and upper dust-proof cover 8 and lower dust-proof cover 11 are separately fixed on the braking bottom board 1.The dust-proof cover that break is original adopts monolithic construction, change over split-type structural, during the installation and removal dust-proof cover, can radially dismantle respectively upper dust-proof cover 8 and lower dust-proof cover 11 from brake assembly, do not need by axial installation and removal, thereby be convenient to assembling and maintain and replace.
The brake drum inside diameter D is reduced to Φ=410mm, thereby reduces the brake drum external diameter, has reduced the quality of brake drum, has increased the gap between brake drum and the tyre rim, has improved performance of ventilation and heat dispersion; And optimize camshaft 4 centers to brake assembly center apart from a=154mm, the coordinate position at brake shoe anchor 9 centers is adjusted into k=28mm, C=165mm, thereby makes the brake assembly braking moment improve 19%.B is brake shoe friction facing width, and B is Brake shoe width, general B=b+2 mm; B can brake needs according to car load and select suitable width, thereby reduces the friction facing unit pressure, reduce wear.
After adopting the utility model, the brake shoe support end adopts the bearing pin means of fixation, and brake shoe assembly can't be come off; Brake shoe roller adopts the bearing pin Placement, and roller can't be come off; Dust-proof cover adopts split-type structural, is convenient to assembling and maintain and replace.Brake assembly reliability and serviceability have been improved; Process reliability and the convenient transportation of brake assembly have been improved; Improve the vehicle bridge efficiency of assembling.
Claims (2)
1. heavy-duty car rear axle brake vi, comprise braking bottom board (1), brake shoe assembly (2), roller (3), brake shoe anchor (9) and dust-proof cover, it is characterized in that: braking bottom board (1) is provided with radially extension part, offer pin-and-hole at extension part, pin-and-hole and brake shoe anchor (9) are complementary, brake shoe anchor (9) passes pin-and-hole, and brake shoe anchor (9) is braked hoof backing pin locking plate (12) locking;
Roller (3) is fixedly connected with by the roller end of roller shaft (13) with brake shoe assembly (2);
Dust-proof cover is comprised of upper dust-proof cover (8) and lower dust-proof cover (11), and upper dust-proof cover (8) and lower dust-proof cover (11) are separately fixed on the braking bottom board (1).
2. heavy-duty car rear axle brake vi according to claim 1, it is characterized in that: described brake shoe anchor locking plate (12) is positioned between two brake shoe anchors (9), and brake shoe anchor locking plate (12) is fixed on the braking bottom board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532800 CN202811928U (en) | 2012-10-18 | 2012-10-18 | Heavy-duty vehicle rear axle brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532800 CN202811928U (en) | 2012-10-18 | 2012-10-18 | Heavy-duty vehicle rear axle brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811928U true CN202811928U (en) | 2013-03-20 |
Family
ID=47870803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220532800 Expired - Lifetime CN202811928U (en) | 2012-10-18 | 2012-10-18 | Heavy-duty vehicle rear axle brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811928U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867609A (en) * | 2014-03-07 | 2014-06-18 | 夏海龙 | Circumferential embracing brake device of wheel type brake axle for motor truck |
| CN103867610A (en) * | 2014-03-07 | 2014-06-18 | 夏海龙 | Wheel type brake axle for motor truck |
| CN104088929A (en) * | 2014-07-03 | 2014-10-08 | 上汽依维柯红岩商用车有限公司 | Automobile brake energy recycling device |
| CN104149914A (en) * | 2014-09-01 | 2014-11-19 | 刘书雄 | Friction plate for motorcycle brake |
| CN106195063A (en) * | 2016-08-31 | 2016-12-07 | 重庆中帝机械制造股份有限公司 | Aluminium alloy drum brake assembly |
-
2012
- 2012-10-18 CN CN 201220532800 patent/CN202811928U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867609A (en) * | 2014-03-07 | 2014-06-18 | 夏海龙 | Circumferential embracing brake device of wheel type brake axle for motor truck |
| CN103867610A (en) * | 2014-03-07 | 2014-06-18 | 夏海龙 | Wheel type brake axle for motor truck |
| CN103867610B (en) * | 2014-03-07 | 2016-01-06 | 夏海龙 | The wheeled braking vehicle bridge of a kind of truck |
| CN104088929A (en) * | 2014-07-03 | 2014-10-08 | 上汽依维柯红岩商用车有限公司 | Automobile brake energy recycling device |
| CN104149914A (en) * | 2014-09-01 | 2014-11-19 | 刘书雄 | Friction plate for motorcycle brake |
| CN106195063A (en) * | 2016-08-31 | 2016-12-07 | 重庆中帝机械制造股份有限公司 | Aluminium alloy drum brake assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |