CN102865319B - Chuck-type expansible braking brake - Google Patents
Chuck-type expansible braking brake Download PDFInfo
- Publication number
- CN102865319B CN102865319B CN201210360698.9A CN201210360698A CN102865319B CN 102865319 B CN102865319 B CN 102865319B CN 201210360698 A CN201210360698 A CN 201210360698A CN 102865319 B CN102865319 B CN 102865319B
- Authority
- CN
- China
- Prior art keywords
- plate
- brake
- gusset
- brake drum
- seat board
- 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 invention discloses a chuck-type expansible braking brake which comprises a brake drum and an operation rod. The chuck-type expansible braking brake is characterized in that two groups of brake shoes, a seat plate, a pressing plate, an S-shaped bending plate, two fixing shafts, a draw bar shaft and two I-type extension springs are arranged in the brake drum, each brake shoe comprises a brake plate and a rib plate fixed at the inner side of the brake plate, and a rib plate hole is arranged on the rib plate. The seat plate is pressed on the rib plate, an outer edge of the seat plate bends downwards to penetrate through the rib plate hole and abut against a blocking block on the bottom face of the rib plate. The fixing shafts downwards penetrate through the seat plate and the rib plate, and the bottom ends of the fixing shafts are pressed by the pressing plate to hang I-type extension springs for limiting and returning. The upper parts of the fixing shafts are matched with a bolt for pressing through the S-shaped bending plate. The draw bar shaft penetrates through the seat plate and the S-shaped bending plate, the upper end of the draw bar shaft is meshed with splines of the operation rod, a boss is arranged at the lower end, and the boss abuts against the inner end of the rib plate. The chuck-type expansible braking brake is compact in structure, big in transmission torque, even in stress, long in service life and can adjust braking gaps easily.
Description
Technical field
The present invention relates to vehicle brake mechanism, specifically, relate to a kind of chuck mode and to rise brake.
Background technique
Adopt in the middle of conventional brake gusset to be connected with seat board composition, have following defect: 1, during brake, gusset and break gusset are subject to force unbalance, and workpiece easily tilts; 2, the moment of transmission is less; 3, brake drum and Brake shoe clearance unadjustable.
Summary of the invention
The object of the invention is the defect overcoming prior art, provide one to be applied to after railroad traction cuts off, the chuck mode of carrying out parking braking rises brake.
For solving the problem, the technical solution adopted in the present invention is:
A kind of chuck mode rises brake, comprises brake drum and operating stem, it is characterized in that: be provided with two groups of brake shoes, seat board, pressing plate, S shape bent plate, two stationary axle, pull rod shaft and two I extension springs in described brake drum; Described brake shoe comprises outwards can be close to brake drum inwall and the keep plate producing friction and the gusset be fixed on inside keep plate after tensioner under external force, and gusset is provided with gusset hole; Described seat board is pressed on gusset, and its outer rim bends downwards, and through gusset hole, holds out against the damp block on gusset bottom surface; Described stationary axle runs through seat board and gusset downwards, and bottom is compressed by pressing plate, and has mounted spacing and I extension spring that is return effect; The top of stationary axle is compressed by S shape bent plate fitted bolt; Described pull rod shaft runs through seat board and S shape bent plate, upper end and operating stem spline engagement, and lower end is provided with boss, and this boss withstands the inner of gusset.
Say further, be also provided with in described brake drum can by the gap adjustment between keep plate and brake drum inwall uniform adjusting part, comprise adjustable lever and play the II extension spring of return effect, the front end of adjustable lever contacts keep plate.
Furtherly, being provided with between described seat board and S shape bent plate can to the flat board being fixed axle and helping out, and dull and stereotyped front end contacts pull rod shaft.
Owing to have employed technique scheme, compared with prior art, compact structure of the present invention, driving torque large, uniform force, long service life, easily adjustable brake gap.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 2.
Embodiment
Embodiment:
With reference to Fig. 1-3, chuck mode of the present invention rises brake, comprises brake drum 12 and operating stem 11. be provided with two groups of brake shoes, seat board 3, pressing plate 9, S shape bent plate 5, two stationary axle 8, pull rod shaft 6 and two I extension springs 1 in described brake drum 12.
Described brake shoe comprises outwards can be close to brake drum 12 inwall and the keep plate 2 producing friction and the gusset 21 be fixed on inside keep plate 2 after tensioner under external force, and gusset is provided with gusset hole 22.Described seat board 3 is pressed on gusset 21, and its outer rim bends downwards, and through gusset hole 22, holds out against the damp block on gusset 21 bottom surface.Described stationary axle 8 runs through seat board 3 and gusset 21 downwards, and bottom is compressed by pressing plate 9, and has mounted spacing and I extension spring 1 that is return effect.The top of stationary axle 8 is compressed by S shape bent plate 5 fitted bolt.Being provided with between described seat board 3 and S shape bent plate 5 can to the flat board 7 being fixed axle 8 and helping out, and the front end of dull and stereotyped 7 contacts pull rod shaft 6.
Described pull rod shaft 6 runs through seat board 3 and S shape bent plate 5, and upper end and operating stem 11 spline engagement, lower end is provided with boss, and this boss withstands the inner of gusset 21.
In addition, being also provided with in described brake drum 12 can by the uniform adjusting part of gap adjustment between keep plate 2 and brake drum 12 inwall, and comprise adjustable lever 4 and the II extension spring 10 playing return effect, the front end of adjustable lever 4 contacts keep plate 2.
Working principle of the present invention is summarized as follows:
After vehicle cuts off power, operator makes operating handle 11 downwards stressed by parking brake switch, and operating handle 11 drives pull rod shaft 6.Boss due to pull rod shaft 6 bottom has withstood the inner of gusset 21, when pull rod shaft 6 is rotated under the driving of operating handle 11, gusset 21 can be ordered about expand to both sides, and then make the inwall of the friction material extruding brake drum 12 outside keep plate 2, the rotating shaft part making brake drum 12 connect vehicle is checked, thus realizes the object of parking.
When operator closes parking brake switch, the stressed releasing of operating stem 11, the keep plate 2 of both sides is to middle return under the effect of two I extension spring 1 pull-back forces, and break stops brake.
Claims (3)
1. chuck mode rises a brake, comprises brake drum and operating stem, it is characterized in that: be provided with two groups of brake shoes, seat board, pressing plate, S shape bent plate, two stationary axle, pull rod shaft and two I extension springs in described brake drum; Described brake shoe comprises outwards can be close to brake drum inwall and the keep plate producing friction and the gusset be fixed on inside keep plate after tensioner under external force, and gusset is provided with gusset hole; Described seat board is pressed on gusset, and its outer rim bends downwards, and through gusset hole, holds out against the damp block on gusset bottom surface; Described stationary axle runs through seat board and gusset downwards, and bottom is compressed by pressing plate, and has mounted spacing and I extension spring that is return effect; The top of stationary axle is compressed by S shape bent plate fitted bolt; Described pull rod shaft runs through seat board and S shape bent plate, upper end and operating stem spline engagement, and lower end is provided with boss, and this boss withstands the inner of gusset.
2. chuck mode according to claim 1 rises brake, it is characterized in that: be also provided with in described brake drum can by the gap adjustment between keep plate and brake drum inwall uniform adjusting part, comprise adjustable lever and the II extension spring playing return effect, the front end of adjustable lever contacts keep plate.
3. chuck mode according to claim 1 and 2 rises brake, it is characterized in that: being provided with between described seat board and S shape bent plate can to the flat board being fixed axle and helping out, and dull and stereotyped front end contacts pull rod shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360698.9A CN102865319B (en) | 2012-09-20 | 2012-09-20 | Chuck-type expansible braking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360698.9A CN102865319B (en) | 2012-09-20 | 2012-09-20 | Chuck-type expansible braking brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865319A CN102865319A (en) | 2013-01-09 |
| CN102865319B true CN102865319B (en) | 2015-01-14 |
Family
ID=47444379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210360698.9A Expired - Fee Related CN102865319B (en) | 2012-09-20 | 2012-09-20 | Chuck-type expansible braking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865319B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4122672C2 (en) * | 1991-07-09 | 2000-11-09 | Continental Teves Ag & Co Ohg | Duo servo drum brake |
| JP2000186728A (en) * | 1998-12-22 | 2000-07-04 | Nisshinbo Ind Inc | Mechanical drum brake |
| CN2448998Y (en) * | 2000-09-29 | 2001-09-19 | 清华大学 | Shoe-drum brake with multi-freedom interlocked shoe |
| JP4988808B2 (en) * | 2009-11-13 | 2012-08-01 | 日信工業株式会社 | Drum brake for vehicles |
| CN201858288U (en) * | 2010-10-12 | 2011-06-08 | 新乡市科工工业有限公司 | Vehicle brake |
| CN202946590U (en) * | 2012-09-20 | 2013-05-22 | 山东海洋结构件制造有限公司 | Chuck type expansion brake |
-
2012
- 2012-09-20 CN CN201210360698.9A patent/CN102865319B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102865319A (en) | 2013-01-09 |
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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 | ||
| 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: 20150114 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |