CN105545991A - Sealing structure for brake shoe assembly - Google Patents
Sealing structure for brake shoe assembly Download PDFInfo
- Publication number
- CN105545991A CN105545991A CN201610035370.8A CN201610035370A CN105545991A CN 105545991 A CN105545991 A CN 105545991A CN 201610035370 A CN201610035370 A CN 201610035370A CN 105545991 A CN105545991 A CN 105545991A
- Authority
- CN
- China
- Prior art keywords
- brake shoe
- shoe assembly
- backing pin
- hole
- brake
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
The invention relates to a sealing structure for a brake shoe assembly. The sealing structure comprises a brake base plate and the brake shoe assembly, a stepped hole is formed in the lower end of the brake shoe assembly, and the coaxial stepped hole is formed by a middle hole and O-shaped ring installation holes which are formed in the two ends of the middle hole and are coaxial with the middle hole; and the diameter of the O-shaped ring installation holes is larger than the diameter of the middle hole, a backing pin lining is installed in the middle hole in an interference manner, O-shaped rings are installed in the O-shaped ring installation holes, and a backing pin penetrate the brake base plate, the O-shaped rings, the brake shoe assembly and the backing pin lining to fix the brake shoe assembly to the brake base plate. The sealing effect of the installation structure of the brake shoe assembly is improved through the O-shaped rings; on one hand, sealing of lubrication grease between the backing pin lining and the backing pin is achieved; and on the other hand, foreign matter like external fine particles can be effectively prevented from entering a gap between the backing pin lining and the backing pin, and good protection of the backing pin lining and the backing pin is achieved.
Description
Technical field
The present invention relates to a kind of brake shoe assembly sealing configuration.
Background technique
Current heavy truck front-rear axle brake shoe assembly uses casting hoof or punching weldering hoof usually, and brake shoe anchor side is rotated around backing pin after usually adopting press-in self-lubricating bushing, or brake shoe anchor side adopts semi-circular structure and the direct contact friction of backing pin to rotate.In vehicle traveling process, automobile can be braked frequently, and during braking, the meeting of brake shoe assembly friction plate and brake drum produce friction, and in braking process, brake inside can continue to produce tiny dust granules.Owing to there is gap between brake shoe anchor lining and backing pin; tiny dust granules can enter between brake shoe anchor lining and backing pin; thus the working life of self-lubricating bushing internal surface self lubricating material can be had influence on; and then the working life of brake shoe assembly can be had influence on; lack seal approach owing to propping up between pin bush(ing) and backing pin simultaneously; in use; the lubricating grease propped up between pin bush(ing) and backing pin can gush because brake inside temperature raises, thus can have influence on the lubrication of propping up between pin bush(ing) and backing pin.
Summary of the invention
The present invention, in order to overcome the deficiency of above technology, provides the brake shoe assembly sealing configuration of the sealing effect of a kind of effective reinforcement brake shoe assembly backing pin side lining and backing pin.
The present invention overcomes the technological scheme that its technical problem adopts:
A kind of brake shoe assembly sealing configuration, comprise: braking bottom board and brake shoe assembly, described brake shoe assembly lower end is provided with shoulder hole, described coaxial shoulder hole is by intermediate hole and be arranged at intermediate hole two ends and form with the O type circle mounting hole of intermediate hole same axis, the diameter of described O type circle mounting hole is greater than the diameter of intermediate hole, propping up pin bush(ing) interference is installed in intermediate hole, O type circle is installed in O type circle mounting hole, and brake shoe assembly is fixed on braking bottom board through after braking bottom board, O type circle, brake shoe assembly and a pin bush(ing) by backing pin.
The invention has the beneficial effects as follows: O type circle improves the sealing effect of brake shoe assembly mounting structure, realize the sealing to propping up lubricating grease between pin bush(ing) and backing pin on the one hand, effectively can prevent the foreign matters such as extraneous fine particle from entering the gap of propping up between pin bush(ing) and backing pin simultaneously on the other hand, realize well protecting a pin bush(ing) and backing pin.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is that A-A in Fig. 1 is to cross-sectional view;
In figure, 1. braking bottom board 2. brake shoe assembly 3. pin bush(ing) 4. backing pin 5.O type circles.
Embodiment
Below in conjunction with accompanying drawing 1, the present invention will be further described for accompanying drawing 2.
A kind of brake shoe assembly sealing configuration, comprise: braking bottom board 1 and brake shoe assembly 2, brake shoe assembly 2 lower end is provided with shoulder hole, coaxial shoulder hole is by intermediate hole and be arranged at intermediate hole two ends and form with the O type circle mounting hole of intermediate hole same axis, the diameter of O type circle mounting hole is greater than the diameter of intermediate hole, propping up pin bush(ing) 3 interference is installed in intermediate hole, O type circle 5 is installed in O type circle mounting hole, and brake shoe assembly 2 is fixed on braking bottom board 1 through after braking bottom board 1, O type circle 5, brake shoe assembly 2 and a pin bush(ing) 3 by backing pin 4.O type circle 5 improves the sealing effect of brake shoe assembly mounting structure, realize the sealing to propping up lubricating grease between pin bush(ing) 3 and backing pin 4 on the one hand, effectively can prevent the foreign matters such as extraneous fine particle from entering the gap of propping up between pin bush(ing) 3 and backing pin 4 simultaneously on the other hand, realize well protecting a pin bush(ing) 3 and backing pin 4.
Claims (1)
1. a brake shoe assembly sealing configuration, it is characterized in that, comprise: braking bottom board (1) and brake shoe assembly (2), described brake shoe assembly (2) lower end is provided with shoulder hole, described coaxial shoulder hole is by intermediate hole and be arranged at intermediate hole two ends and form with the O type circle mounting hole of intermediate hole same axis, the diameter of described O type circle mounting hole is greater than the diameter of intermediate hole, propping up pin bush(ing) (3) interference is installed in intermediate hole, O type circle (5) is installed in O type circle mounting hole, backing pin (4) is through braking bottom board (1), O type circle (5), after brake shoe assembly (2) and a pin bush(ing) (3), brake shoe assembly (2) is fixed on braking bottom board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035370.8A CN105545991A (en) | 2016-01-20 | 2016-01-20 | Sealing structure for brake shoe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035370.8A CN105545991A (en) | 2016-01-20 | 2016-01-20 | Sealing structure for brake shoe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545991A true CN105545991A (en) | 2016-05-04 |
Family
ID=55825422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035370.8A Pending CN105545991A (en) | 2016-01-20 | 2016-01-20 | Sealing structure for brake shoe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545991A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007804A (en) * | 1963-10-11 | 1965-10-22 | Rockwell Standard Co | Improvements in or relating to internal shoe-drum brakes |
| CN101818768A (en) * | 2009-11-17 | 2010-09-01 | 梅向东 | Automobile floating shoe-axis mode balancing force amplifying brake |
| CN103375517A (en) * | 2012-04-26 | 2013-10-30 | 江苏联升汽车部件有限公司 | Worm shaft of automotive clearance adjusting arm |
| CN203822910U (en) * | 2014-04-03 | 2014-09-10 | 泰州神舟传动科技有限公司 | Shoe pin for brake of engineering van |
| CN104675891A (en) * | 2013-12-03 | 2015-06-03 | 刘汉兴 | Mining truck rear brake shoe assembly |
| CN205503821U (en) * | 2016-01-20 | 2016-08-24 | 中国重汽集团济南动力有限公司 | Brake shoe assembly seal structure |
-
2016
- 2016-01-20 CN CN201610035370.8A patent/CN105545991A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007804A (en) * | 1963-10-11 | 1965-10-22 | Rockwell Standard Co | Improvements in or relating to internal shoe-drum brakes |
| CN101818768A (en) * | 2009-11-17 | 2010-09-01 | 梅向东 | Automobile floating shoe-axis mode balancing force amplifying brake |
| CN103375517A (en) * | 2012-04-26 | 2013-10-30 | 江苏联升汽车部件有限公司 | Worm shaft of automotive clearance adjusting arm |
| CN104675891A (en) * | 2013-12-03 | 2015-06-03 | 刘汉兴 | Mining truck rear brake shoe assembly |
| CN203822910U (en) * | 2014-04-03 | 2014-09-10 | 泰州神舟传动科技有限公司 | Shoe pin for brake of engineering van |
| CN205503821U (en) * | 2016-01-20 | 2016-08-24 | 中国重汽集团济南动力有限公司 | Brake shoe assembly seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |