CN202946590U - Chuck type expansion brake - Google Patents
Chuck type expansion brake Download PDFInfo
- Publication number
- CN202946590U CN202946590U CN 201220503618 CN201220503618U CN202946590U CN 202946590 U CN202946590 U CN 202946590U CN 201220503618 CN201220503618 CN 201220503618 CN 201220503618 U CN201220503618 U CN 201220503618U CN 202946590 U CN202946590 U CN 202946590U
- Authority
- CN
- China
- Prior art keywords
- brake
- plate
- gusset
- rib
- brake drum
- 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.)
- Withdrawn - After Issue
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a chuck type expansion brake which comprises a brake drum and an operating lever. The chuck type expansion 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 extension springs I are arranged in the brake drum; each brake shoe comprises a brake plate and a rib plate fixed on the inner side of the brake plate, and a rib plate hole is formed in each rib plate; the seat plate is pressed on the rib plates, the periphery of the seat plate is bent downwards, and the seat plate penetrates through the rib hole and tightly abuts against stopping blocks on the bottom faces of the rib plates; the fixing shafts penetrate through the seat plate and the rib plates downwards, the bottom ends of the fixing shafts are tightly pressed through the pressing plate, and the extension springs I with limiting and return functions are hooked on the fixing shafts; the upper portions of the fixing shafts are tightly pressed through the S-shaped bending plate in fit with bolts; and 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 a spline of the operating lever, a boss is arranged at the lower end of the draw bar shaft, and the boss abuts against the inner ends of the rib plates. The chuck type expansion brake is compact in structure, large in transmission torque, even in stress, long in service life, and capable of enabling brake clearances to be adjusted easily.
Description
Technical field
The utility model relates to car brakeing mechanism, specifically, relates to a kind of chuck mode brake that rises.
Background technique
Adopt gusset compositions that be connected with seat board in the middle of the traditional braking device, have following defective: when 1, break is braked, gusset and break gusset are subjected to force unbalance, and workpiece easily tilts; 2, the moment of transmission is less; 3, brake drum and Brake shoe clearance are unadjustable.
Summary of the invention
The purpose of this utility model is the defective that overcomes prior art, provide a kind of be applied to railroad traction and cut off after, the chuck mode of the carrying out parking braking brake that rises.
For addressing the above problem, the technological scheme that the utility model adopts is:
A kind of chuck mode brake that rises 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 can be under external force outwards be close to the brake drum inwall after tensioner and produce the keep plate of friction and be fixed on the gusset of keep plate inboard, and gusset is provided with the gusset hole; Described seat board is pressed on gusset, and its outer rim bends downwards, and passes the gusset hole, holds out against the damp block on the gusset bottom surface; Described stationary axle runs through seat board and gusset downwards, and the bottom compresses by pressing plate, and has articulated spacing and the I extension spring return effect: the top of stationary axle compresses 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 the lower end is provided with boss, and this boss withstands the inner of gusset.
Say further, also be provided with in described brake drum and the uniform adjusting part of gap adjustment between keep plate and brake drum inwall can be comprised adjustable lever and the II extension spring that plays the return effect, the front end of adjustable lever contacts keep plate.
Furtherly, be provided with the flat board that can help out to being fixed axle between described seat board and S shape bent plate, dull and stereotyped front end contacts pull rod shaft.
Owing to having adopted technique scheme, compared with prior art, the utility model compact structure, driving torque be large, stressed evenly, long service life, easy adjustable brake gap.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Description of drawings
Fig. 1 is a kind of embodiment's of the present utility model structural representation;
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, the chuck mode described in the utility model brake that rises, comprise 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 can be under external force outwards be close to brake drum 12 inwalls after tensioner and produce the keep plate 2 of friction and be fixed on the gusset 21 of keep plate 2 inboards, and gusset is provided with gusset hole 22.Described seat board 3 is pressed on gusset 21, and its outer rim bends downwards, and passes gusset hole 22, holds out against the damp block on gusset 21 bottom surfaces.Described stationary axle 8 runs through seat board 3 and gusset 21 downwards, and the bottom compresses by pressing plate 9, and has articulated spacing and the I extension spring 1 return effect.The top of stationary axle 8 compresses by S shape bent plate 5 fitted bolts.Be provided with the flat board 7 that can help out to being fixed axle 8 between described seat board 3 and S shape bent plate 5, dull and stereotyped 7 front end contacts pull rod shaft 6.
Described pull rod shaft 6 runs through seat board 3 and S shape bent plate 5, upper end and operating stem 11 spline engagement, and the lower end is provided with boss, and this boss withstands the inner of gusset 21.
In addition, also be provided with in described brake drum 12 and the gap adjustment of the asking uniform adjusting part of keep plate 2 with brake drum 12 inwalls can be comprised adjustable lever 4 and the II extension spring 10 that plays the return effect, the front end of adjustable lever 4 contacts keep plate 2.
Working principle of the present utility model is summarized as follows:
After vehicle cut off power, the operator made operating handle 11 stressed downwards by the parking brake switch, and operating handle 11 drives pull rod shaft 6.The inner of having withstood gusset 21 due to the boss of pull rod shaft 6 bottoms, when pull rod shaft 6 is rotated under the driving of operating handle 11, can order about gusset 21 expands to both sides, and then make the inwall of the friction material extruding brake drum 12 in keep plate 2 outsides, the rotating shaft part that makes brake drum 12 connect vehicle is checked, thereby realizes the purpose of Parking.
When the operator closes the parking brake switch, the stressed releasing of operating stem 11, to middle return, break stops brake to the keep plate 2 of both sides under the effect of two I extension spring 1 pull-back forces.
Claims (3)
1. chuck mode brake that rises, comprise 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 can be under external force outwards be close to the brake drum inwall after tensioner and produce the keep plate of friction and be fixed on the gusset of keep plate inboard, and gusset is provided with the gusset hole; Described seat board is pressed on gusset, and its outer rim bends downwards, and passes the gusset hole, holds out against the damp block on the gusset bottom surface; Described stationary axle runs through seat board and gusset downwards, and the bottom compresses by pressing plate, and has articulated spacing and the I extension spring return effect; The top of stationary axle compresses 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 the lower end is provided with boss, and this boss withstands the inner of gusset.
2. the chuck mode according to claim 1 brake that rises, it is characterized in that: also being provided with in described brake drum can be with the uniform adjusting part of gap adjustment between keep plate and brake drum inwall, comprise adjustable lever and the II extension spring that plays the return effect, the front end of adjustable lever contacts keep plate.
3. the chuck mode according to claim 1 and 2 brake that rises, it is characterized in that: be provided with the flat board that can help out to being fixed axle between described seat board and S shape bent plate, dull and stereotyped front end contacts pull rod shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503618 CN202946590U (en) | 2012-09-20 | 2012-09-20 | Chuck type expansion brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503618 CN202946590U (en) | 2012-09-20 | 2012-09-20 | Chuck type expansion brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946590U true CN202946590U (en) | 2013-05-22 |
Family
ID=48422295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220503618 Withdrawn - After Issue CN202946590U (en) | 2012-09-20 | 2012-09-20 | Chuck type expansion brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865319A (en) * | 2012-09-20 | 2013-01-09 | 山东海洋结构件制造有限公司 | Chuck-type expansible braking brake |
-
2012
- 2012-09-20 CN CN 201220503618 patent/CN202946590U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865319A (en) * | 2012-09-20 | 2013-01-09 | 山东海洋结构件制造有限公司 | Chuck-type expansible braking brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130522 Effective date of abandoning: 20150114 |
|
| RGAV | Abandon patent right to avoid regrant |