CN201382103Y - Hydraulic disc brake - Google Patents
Hydraulic disc brake Download PDFInfo
- Publication number
- CN201382103Y CN201382103Y CN200920042216U CN200920042216U CN201382103Y CN 201382103 Y CN201382103 Y CN 201382103Y CN 200920042216 U CN200920042216 U CN 200920042216U CN 200920042216 U CN200920042216 U CN 200920042216U CN 201382103 Y CN201382103 Y CN 201382103Y
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- China
- Prior art keywords
- brake
- clearance
- piston
- spring
- cylinder body
- 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
A hydraulic disc brake comprises a brake disc, a left brake block, a right brake block and a brake cylinder, wherein a front oil inlet and a rear oil inlet are formed on a cylinder body of the brake cylinder; a front piston and a rear piston are mounted in the cylinder body; a brake spring is arranged between the front and the rear pistons; a clearance self-compensation seat in threaded connection with the rear piston is arranged on the back surface thereof; the rear end of the clearance self-compensation seat is matched with a rear cover of the cylinder body in a sliding manner; a torsion spring is mounted on the clearance self-compensation seat; a travel regulating and controlling block is arranged in the middle of the clearance self-compensation seat; and a travel regulating and controlling spring is mounted between the travel regulating and controlling block and the rear cover of the cylinder body. In the case of clearance existing between the travel regulating and controlling spring and the rear cover during braking, the clearance self-compensation seat can automatically fill the clearance under the action of the torsion spring, so as to compensate the abrasion of the brake blocks; and the opening clearance of the brake is mainly the clearance of the travel regulating and controlling spring, which is free from the dependence on the compression amount of main brake springs, thereby greatly decreasing the numbers of the main brake springs and reducing the size of the brake cylinder.
Description
Technical field
The utility model relates to a kind of braking device of axial action, particularly a kind of normally closed hydraulic brake.
Background technique
Big machinery, as Hoisting Machinery, mining machinery, wind-power electricity generation machinery, cable machinery, belt comveyer tool etc., the normally closed hydraulic brake of use is made up of brake main pump, frame, brake cylinder.The brake cylinder of hydraulic tongs disk type braker commonly used all is single piston at present, does not have the automatic backlash compensation mechanism, does not have the fixed interval (FI) that facility is set, and strengthen or reduce the gap and can only realize by the quantity, raising or the reduction oil pressure that strengthen the main brake spring.It is that the volume that has strengthened brake cylinder causes installation inconvenience that the quantity of increasing main brake spring not only increases the cost key.Improving oil pressure makes break will increase many system cost rising leakage hidden danger increasings that cause than the oil pressure of braking state on the contrary at the state of opening a sluice gate.So because the gap guarantees the unreliable reliability that must improve system by the increasing gap of system, lost period of braking so again again.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed a kind of normally closed hydraulic brake of realizing clearance automatic compensation, opening a sluice gate stroke adjusting.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of hydraulic brake, comprise brake disc and left and right sides brake block, wherein a slice brake block and brake cylinder join, brake cylinder is provided with a cylinder body, filler opening and back filler opening before on cylinder body, having, be provided with brake piston between filler opening and the back filler opening before in cylinder body, be characterized in: described brake piston is provided with secondary piston and back piston, between secondary piston and back piston, be provided with brake spring, the back side of back piston is provided with the clearance automatic compensation seat, between clearance automatic compensation seat and the back piston by being threaded, the rear end of clearance automatic compensation seat and the bonnet of cylinder body are slidingly matched, the clearance automatic compensation seat is provided with torsion spring, be provided with the stroke adjusting piece at the middle part of clearance automatic compensation seat, between stroke adjusting piece and cylinder body bonnet, be provided with stroke adjusting spring.
The technical problems to be solved in the utility model can also be come further realization by the following technical programs, and described torsion spring is arranged in the endoporus of clearance automatic compensation seat, and an end and the inner hole wall of torsion spring are fixed, and the other end of torsion spring and the bonnet of cylinder body are fixed.
The technical problems to be solved in the utility model can also be come by the following technical programs further to realize, is provided with the stroke adjusting pad between stroke adjusting spring and the bonnet.
The utility model compared with prior art, brake cylinder adopts dual-piston structure, the main brake spring is contained between two pistons, wherein the end of secondary piston heads on brake block, clearance automatic compensation mechanism is set between back piston and the bonnet and opens a sluice gate stroke adjusting mechanism.During braking, high pressure oil enters the oil cylinder back cavity from the back filler opening, piston moves to left brake disc is implemented braking, the clearance automatic compensation seat was followed and was moved to left this moment, if gapped between stroke adjusting spring and stroke adjusting pad and bonnet at this moment, counterrotating will take place under the effect of torsion spring and between the back piston in the clearance automatic compensation seat, fill up the gap automatically, in order to the wearing and tearing of compensation brake block, thereby reach the purpose of clearance automatic compensation.When high pressure oil the past, filler opening entered oil cylinder, secondary piston moves to right, compression main brake spring and stroke adjusting spring are opened break, this moment is owing to there is the existence of stroke adjusting spring stroke, make that the opening clearance of break mainly is the gap of stroke adjusting spring, no longer rely on the decrement of main brake spring, realize opening a sluice gate stroke adjusting, therefore can significantly reduce the quantity of main brake spring, the size of dwindling brake cylinder.
Description of drawings
Fig. 1 is a structure diagram of the present utility model.
Embodiment
A kind of hydraulic brake, comprise brake disc 1 and left and right sides brake block, wherein a slice brake block and brake cylinder join, brake cylinder is provided with a cylinder body 5, filler opening 2 and back filler opening 7 before on cylinder body, having, be provided with brake piston between filler opening and the back filler opening before in cylinder body, described brake piston is provided with secondary piston 3 and back piston 6, between secondary piston and back piston, be provided with brake spring 4, the back side of back piston is provided with clearance automatic compensation seat 11, between clearance automatic compensation seat 11 and the back piston 6 by being threaded, the rear end of clearance automatic compensation seat 11 and the bonnet of cylinder body 13 are slidingly matched, the clearance automatic compensation seat is provided with torsion spring 12, is provided with stroke adjusting piece 10 at the middle part of clearance automatic compensation seat, is provided with stroke adjusting spring 9 between stroke adjusting piece 10 and cylinder body bonnet 13.Described torsion spring 12 is arranged in the endoporus of clearance automatic compensation seat, and an end and the inner hole wall of torsion spring 12 are fixed, and the other end of torsion spring 12 and the bonnet of cylinder body 13 are fixing.Can install stroke adjusting pad 8 additional between stroke adjusting spring 9 and the bonnet.
Because oil pressure and braking oil pressure basically identical are opened a sluice gate in the effect of double-piston, opening a sluice gate the gap does not need to rely on increase oil pressure pressure to realize, but regulate and control by the stroke size of opening a sluice gate stroke adjusting spring between clearance automatic compensation seat and rear end cover.There has been stroke adjusting spring just not need to rely on the quantity and the oil pressure of increase and decrease main spring to regulate and control the gap, just can have regulated and control to open a sluice gate stroke by the thickness of adjusting the stroke adjusting pad or the height of adjusting stroke adjusting spring.
Claims (3)
1. hydraulic brake, comprise brake disc (1) and left and right sides brake block, wherein a slice brake block and brake cylinder join, brake cylinder is provided with a cylinder body (5), on cylinder body (5), have preceding filler opening (2) and back filler opening (7), be provided with brake piston between filler opening (2) and the back filler opening (7) before in cylinder body, it is characterized in that: described brake piston is provided with secondary piston (3) and back piston (6), between secondary piston (3) and back piston (6), be provided with brake spring (4), the back side of back piston (6) is provided with clearance automatic compensation seat (11), between clearance automatic compensation seat (11) and the back piston (6) by being threaded, the bonnet (13) of the rear end of clearance automatic compensation seat (11) and cylinder body is slidingly matched, clearance automatic compensation seat (11) is provided with torsion spring (12), be provided with stroke adjusting piece (10) at the middle part of clearance automatic compensation seat (11), between stroke adjusting piece (10) and cylinder body bonnet (13), be provided with stroke adjusting spring (9).
2. hydraulic brake according to claim 1, it is characterized in that: described torsion spring (12) is arranged in the endoporus of clearance automatic compensation seat (11), one end and the inner hole wall of torsion spring (12) are fixed, and the bonnet (13) of the other end of torsion spring (12) and cylinder body is fixing.
3. hydraulic brake according to claim 1 is characterized in that: be provided with stroke adjusting pad (8) between stroke adjusting spring (9) and the bonnet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920042216U CN201382103Y (en) | 2009-03-19 | 2009-03-19 | Hydraulic disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920042216U CN201382103Y (en) | 2009-03-19 | 2009-03-19 | Hydraulic disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382103Y true CN201382103Y (en) | 2010-01-13 |
Family
ID=41525578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920042216U Expired - Fee Related CN201382103Y (en) | 2009-03-19 | 2009-03-19 | Hydraulic disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382103Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788105A (en) * | 2012-08-14 | 2012-11-21 | 焦作制动器股份有限公司 | Multiple-effect caliper disc brake |
| CN103381841A (en) * | 2012-05-04 | 2013-11-06 | 陈镇汉 | Novel normally closed braking device |
| CN108045358A (en) * | 2016-03-28 | 2018-05-18 | 杭州富阳鸿祥技术服务有限公司 | A kind of brake units based on pressure rotation |
| CN108138881A (en) * | 2015-09-24 | 2018-06-08 | 日立建机株式会社 | Industrial wheeled equipment |
| CN112128165A (en) * | 2020-09-08 | 2020-12-25 | 合肥通用机械研究院有限公司 | Linear hydraulic actuator and performance test device for packing sealing system thereof |
| CN112254895A (en) * | 2020-09-08 | 2021-01-22 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight stroke valve rod |
| CN113389829A (en) * | 2021-06-10 | 2021-09-14 | 徐州徐工矿业机械有限公司 | Mining dump truck and brake automatic compensator, brake and braking method thereof |
-
2009
- 2009-03-19 CN CN200920042216U patent/CN201382103Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381841A (en) * | 2012-05-04 | 2013-11-06 | 陈镇汉 | Novel normally closed braking device |
| CN102788105A (en) * | 2012-08-14 | 2012-11-21 | 焦作制动器股份有限公司 | Multiple-effect caliper disc brake |
| CN102788105B (en) * | 2012-08-14 | 2017-02-08 | 焦作金箍制动器股份有限公司 | Multiple-effect caliper disc brake |
| CN108138881A (en) * | 2015-09-24 | 2018-06-08 | 日立建机株式会社 | Industrial wheeled equipment |
| CN108138881B (en) * | 2015-09-24 | 2019-08-20 | 日立建机株式会社 | Industrial wheeled equipment |
| CN108045358A (en) * | 2016-03-28 | 2018-05-18 | 杭州富阳鸿祥技术服务有限公司 | A kind of brake units based on pressure rotation |
| CN112128165A (en) * | 2020-09-08 | 2020-12-25 | 合肥通用机械研究院有限公司 | Linear hydraulic actuator and performance test device for packing sealing system thereof |
| CN112254895A (en) * | 2020-09-08 | 2021-01-22 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight stroke valve rod |
| CN112254895B (en) * | 2020-09-08 | 2023-12-05 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight Cheng Fagan |
| CN112128165B (en) * | 2020-09-08 | 2024-02-02 | 合肥通用机械研究院有限公司 | Linear type hydraulic actuator and performance test device of packing sealing system thereof |
| CN113389829A (en) * | 2021-06-10 | 2021-09-14 | 徐州徐工矿业机械有限公司 | Mining dump truck and brake automatic compensator, brake and braking method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20130319 |