CN104653661B - Normally closed band brake emergency release - Google Patents
Normally closed band brake emergency release Download PDFInfo
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- CN104653661B CN104653661B CN201310663343.1A CN201310663343A CN104653661B CN 104653661 B CN104653661 B CN 104653661B CN 201310663343 A CN201310663343 A CN 201310663343A CN 104653661 B CN104653661 B CN 104653661B
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- oil cylinder
- release
- cylinder
- emergent
- normally closed
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Abstract
The invention discloses a kind of normally closed band brake emergency release, it is related to shipbuilding technical field；It includes brake ribbon and skidding oil cylinder, the upper cover of piston rod of the skidding oil cylinder has spring, the piston rod of the skidding oil cylinder is connected with an arm of force of lever, another arm of force of the lever is fixedly connected with the cylinder body of emergent release oil cylinder, and the piston rod of emergent release oil cylinder is connected with the brake ribbon；Oil pocket before the emergent release oil cylinder piston is connected by a pipeline for being provided with normally closed emergent ball relief valve with repairing cylinder, and the repairing cylinder is connected by another pipeline with the oil pocket after the emergent release oil cylinder piston.The emergent release manual operation of brake apparatus that the present invention can solve heavy load elevator winch is difficult, and release time is difficult to meet desired problem.
Description
Technical field
The present invention relates on shipbuilding technical field, especially a kind of elevator winch for ship and ocean engineering
Band brake emergency release.
Background technology
Normally closed strap braking device typically provides original brake force by compression spring, when needing that brake apparatus is answered
During anxious release, the active force of compression spring is typically overcome to realize by manual operation handwheel screw or hydraulic jack, but greatly
The acting force of the spring for loading the brake apparatus of elevator winch is big, and release travel is long, and above-mentioned two ways manual operation is difficult, should
Anxious release time is difficult to meet and requires, release time typically requires to be completed in 10 seconds.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of normally closed band brake emergency release, this normal
Closing band brake emergency release can solve the emergent release manual operation difficulty of brake apparatus of heavy load elevator winch,
Release time is difficult to meet desired problem.
In order to solve the above problems, the technical solution adopted by the present invention is：The emergent release dress of this normally closed band brake
Put, include brake ribbon and skidding oil cylinder, the upper cover of piston rod of the skidding oil cylinder has spring, the brake system
The piston rod for moving oil cylinder is connected with an arm of force of lever, the cylinder body of another arm of force of the lever and emergent release oil cylinder
It is fixedly connected, the piston rod of emergent release oil cylinder is connected with the brake ribbon；Oil pocket before the emergent release oil cylinder piston
Be connected by a pipeline for being provided with normally closed emergent ball relief valve and repairing cylinder, the repairing cylinder by another pipeline with it is described
Oil pocket after emergent release oil cylinder piston is connected.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1st, the present invention operates emergent ball relief valve by adding a release small oil tank in the structure of band brake
Handle is the emergent release for being capable of achieving brake, and release time meets the requirement completed in 10 seconds；Operation it is very laborsaving and
It is simple and efficient, with low cost, performance safety reliability.
2nd, the present invention is the combination of hydraulic pressure and mechanical structure, by from the different emergent release oil cylinder of matching, fitting it
Mooring winch, towing winch, shifting ship positionning winch for different pulling force tonnages etc., range of application is wider.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is principle schematic of the invention.
Label is expressed as in figure：1st, skidding oil cylinder；2nd, repairing cylinder；3rd, emergent ball relief valve；4th, brake ribbon；5th, meet an urgent need
Release oil cylinder；6th, lever；The direction of A, niggerhead loading moment；B, compression spring braking force direction.
Specific embodiment
The invention will be further described for embodiment below in conjunction with the accompanying drawings：
The normally closed band brake emergency release of Fig. 1 and Fig. 2, includes skidding oil cylinder 1, the piston of oil cylinder 1
Compression spring is cased with bar；The piston rod of oil cylinder 1 is connected with an arm of force of lever 6, another arm of force of lever 6 with it is emergent
The cylinder body for discharging oil cylinder 5 is fixedly connected, and the piston rod of emergent release oil cylinder 5 is connected with brake ribbon 4；Repairing cylinder 2 passes through one
It is provided with the pipeline of normally closed emergent ball relief valve 3 to be connected with the oil pocket before the emergent release piston of oil cylinder 5, repairing cylinder 2 is by another
Pipeline is connected with the oil pocket after the emergent release piston of oil cylinder 5.
Operation principle of the invention is：In the case of power is not provided, provided by compression spring in skidding oil cylinder 1
Spring force shrinks the piston rod of skidding oil cylinder 1, and B arrows show compression spring braking force direction in Fig. 2, by lever 6
Brake ribbon 4 is tightened up, braking function is realized；A arrows show the direction of niggerhead loading moment in Fig. 2.
In power under normal circumstances, brake is opened, the epicoele fuel feeding of skidding oil cylinder 1 is given, makes skidding oil cylinder 1
Piston rod stretches out, and makes brake ribbon 4 locking by lever 6, realizes release function.
In the event of a power failure, brake is opened, as long as normally closed emergent ball relief valve 3 is opened, release oil of meeting an urgent need
The distress resolves of the oil pocket before the piston of cylinder 5, the piston rod of release oil cylinder 5 of meeting an urgent need is quick condition, now because niggerhead is negative
The effect of load, the piston rod of emergent release oil cylinder 5 stretches out the stroke that releases for being supplied to brake ribbon 4 enough, and brake force disappears, and realizes
Emergent release function.
Claims (1)
1. a kind of normally closed band brake emergency release, includes brake ribbon（4）With skidding oil cylinder（1）, it is described to stop
Car brake cylinder（1）Upper cover of piston rod have spring, it is characterised in that：The skidding oil cylinder（1）Piston rod and lever
（6）An arm of force be connected, the lever（6）Another arm of force and emergent release oil cylinder（5）Cylinder body be fixedly connected, should
Anxious release oil cylinder（5）Piston rod and the brake ribbon（4）It is connected；The emergent release oil cylinder（5）Oil pocket before piston leads to
Cross one and be provided with normally closed emergent ball relief valve（3）Pipeline and repairing cylinder（2）It is connected, the repairing cylinder（2）By another pipe
Road and the emergent release oil cylinder（5）Oil pocket after piston is connected.
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 CN104653661A (en) | 2015-05-27 |
| CN104653661B true 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) |
Families Citing this family (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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220237A (en) * | 1988-06-16 | 1990-01-04 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN104653661A (en) | 2015-05-27 |
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