CN104653661A - Emergency release device of normally closed band-type brake - Google Patents
Emergency release device of normally closed band-type brake Download PDFInfo
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- CN104653661A CN104653661A CN201310663343.1A CN201310663343A CN104653661A CN 104653661 A CN104653661 A CN 104653661A CN 201310663343 A CN201310663343 A CN 201310663343A CN 104653661 A CN104653661 A CN 104653661A
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- emergency release
- oil cylinder
- cylinder
- normally closed
- brake
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Abstract
The invention discloses an emergency release device of a normally closed band-type brake and relates to the field of a ship manufacturing technology; the emergency release device comprises a brake band and a brake braking cylinder, wherein the piston rod of the brake braking cylinder is sleeved with a spring and connected with one moment arm of a lever, the other moment arm of the lever is fixedly connected with the emergency release cylinder body, and the piston rod of the emergency release cylinder body is connected with the brake band; an oil chamber at the front of the piston of the emergency release cylinder is connected with an oil-filling barrel through one pipeline with one normally closed emergency release ball valve, and the oil-filling barrel is connected with the oil chamber at the rear of the piston of the emergency release cylinder through the other pipeline. The emergency release device can solve the problem that the release time is difficult to meet the requirements because the brake apparatus of a heavy-load winding winch is difficult to manually operate in emergency release.
Description
Technical field
The present invention relates to shipbuilding technical field, especially a kind of band brake emergency release on the elevator winch of boats and ships and ocean engineering.
Background technique
Normally closed strap braking device generally provides original braking force by Compress Spring, when needs carry out emergent release to braking device, the active force realization of Compress Spring is generally overcome by manual operation handwheel screw or hydraulic jack, but the acting force of the spring of the braking device of heavy load elevator winch is large, release travel is long, two kinds of above-mentioned mode manual operation difficulties, emergent release time is difficult to meet the demands, and release time, General Requirements completed in 10 seconds.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of normally closed band brake emergency release, this normally closed band brake emergency release can solve the braking device emergent release manual operation difficulty of heavy load elevator winch, is difficult to the problem met the demands release time.
In order to solve the problem, the technical solution used in the present invention is: this normally closed band brake emergency release, include brake strap and skidding oil cylinder, the upper cover of piston rod of described skidding oil cylinder has spring, the piston rod of described skidding oil cylinder is connected with an arm of force of lever, another arm of force of described lever is fixedly connected with the emergent cylinder body discharging oil cylinder, and the piston rod of emergent release oil cylinder is connected with described brake strap; Oil pocket before described emergent release oil cylinder piston is connected with repairing cylinder by the pipeline that is provided with normally closed emergent ball relief valve, and described repairing cylinder is connected with the oil pocket after described emergent release oil cylinder piston by another pipeline.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, the present invention by adding a release small oil tank in the structure of band brake, and the handle of the emergent ball relief valve of operation can realize the emergent release of break, meets the requirement completed in 10 seconds release time; Operate very laborsaving and simple and efficient, with low cost, performance safety is reliable.
2, the present invention is the combination of hydraulic pressure and mechanical structure, and by selecting the emergent release oil cylinder that coupling is different, make its mooring winch being applicable to different pulling force tonnages, towing winch, move ship positionning winch etc., application area is wider.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is principle schematic of the present invention.
Number in the figure is expressed as: 1, skidding oil cylinder; 2, repairing cylinder; 3, emergent ball relief valve; 4, brake strap; 5, emergent release oil cylinder; 6, lever; The direction of A, niggerhead loading moment; B, Compress Spring braking force direction.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
The normally closed band brake emergency release of Fig. 1 and Fig. 2, include skidding oil cylinder 1, the upper cover of piston rod of oil cylinder 1 has Compress Spring; The piston rod of oil cylinder 1 is connected with an arm of force of lever 6, and another arm of force of lever 6 is fixedly connected with the emergent cylinder body discharging oil cylinder 5, and the piston rod of emergent release oil cylinder 5 is connected with brake strap 4; Repairing cylinder 2 is connected with the oil pocket before discharging oil cylinder 5 piston of meeting an urgent need by the pipeline that is provided with normally closed emergent ball relief valve 3, and repairing cylinder 2 is connected with the oil pocket after discharging oil cylinder 5 piston of meeting an urgent need by another pipeline.
Working principle of the present invention is: do not providing in power situation, the spring force provided by Compress Spring in skidding oil cylinder 1 makes skidding oil cylinder 1 piston rod shrink, in Fig. 2, B arrow is depicted as Compress Spring braking force direction, by lever 6, brake strap 4 is tightened up, realizes braking function; In Fig. 2, A arrow is depicted as the direction of niggerhead loading moment.
At power under normal circumstances, brake be opened, to skidding oil cylinder 1 epicoele fuel feeding, the piston rod of skidding oil cylinder 1 be stretched out, make brake strap 4 locking by lever 6, realize release function.
In the event of a power failure, open brake, as long as normally closed emergent ball relief valve 3 is opened, the distress resolves of the oil pocket before emergent release oil cylinder 5 piston, the piston rod of emergent release oil cylinder 5 is quick conditions, and now due to the effect of niggerhead load, the piston rod of emergent release oil cylinder 5 stretches out and is supplied to the enough strokes that gets loose of brake strap 4, braking force disappears, and realizes emergent release function.
Claims (1)
1. a normally closed band brake emergency release, include brake strap (4) and skidding oil cylinder (1), the upper cover of piston rod of described skidding oil cylinder (1) has spring, it is characterized in that: the piston rod of described skidding oil cylinder (1) is connected with an arm of force of lever (6), another arm of force of described lever (6) is fixedly connected with the emergent cylinder body discharging oil cylinder (5), and the piston rod of emergent release oil cylinder (5) is connected with described brake strap (4); Oil pocket before described emergent release oil cylinder (5) piston is connected with repairing cylinder (2) by the pipeline that is provided with normally closed emergent ball relief valve (3), and described repairing cylinder (2) is connected with the oil pocket after described emergent release oil cylinder (5) piston by another pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663343.1A CN104653661B (en) | 2013-12-10 | 2013-12-10 | Normally closed band brake emergency release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663343.1A CN104653661B (en) | 2013-12-10 | 2013-12-10 | Normally closed band brake emergency release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653661A true CN104653661A (en) | 2015-05-27 |
| CN104653661B CN104653661B (en) | 2017-07-11 |
Family
ID=53245155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310663343.1A Active CN104653661B (en) | 2013-12-10 | 2013-12-10 | Normally closed band brake emergency release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653661B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702191A (en) * | 2021-08-24 | 2021-11-26 | 南京中船绿洲机器有限公司 | Test method and device for roller chain stopper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347208A2 (en) * | 1988-06-16 | 1989-12-20 | Butterley Engineering Limited | Band brake assembly |
| CN2697061Y (en) * | 2004-03-18 | 2005-05-04 | 金吉云 | Speed changing brake |
| CN201367309Y (en) * | 2009-03-20 | 2009-12-23 | 常州常矿起重机械有限公司 | Safe belt-type brake used for large cantilever crane |
| CN202785440U (en) * | 2012-09-20 | 2013-03-13 | 宁波凯荣船用机械有限公司 | Emergency lowering module for winch |
| CN203614626U (en) * | 2013-12-10 | 2014-05-28 | 中船华南船舶机械有限公司 | Emergency release device of normally closed belt brake |
-
2013
- 2013-12-10 CN CN201310663343.1A patent/CN104653661B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347208A2 (en) * | 1988-06-16 | 1989-12-20 | Butterley Engineering Limited | Band brake assembly |
| CN2697061Y (en) * | 2004-03-18 | 2005-05-04 | 金吉云 | Speed changing brake |
| CN201367309Y (en) * | 2009-03-20 | 2009-12-23 | 常州常矿起重机械有限公司 | Safe belt-type brake used for large cantilever crane |
| CN202785440U (en) * | 2012-09-20 | 2013-03-13 | 宁波凯荣船用机械有限公司 | Emergency lowering module for winch |
| CN203614626U (en) * | 2013-12-10 | 2014-05-28 | 中船华南船舶机械有限公司 | Emergency release device of normally closed belt brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702191A (en) * | 2021-08-24 | 2021-11-26 | 南京中船绿洲机器有限公司 | Test method and device for roller chain stopper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104653661B (en) | 2017-07-11 |
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