CN101240823A - Air-actuated band brake - Google Patents
Air-actuated band brake Download PDFInfo
- Publication number
- CN101240823A CN101240823A CNA2007100776582A CN200710077658A CN101240823A CN 101240823 A CN101240823 A CN 101240823A CN A2007100776582 A CNA2007100776582 A CN A2007100776582A CN 200710077658 A CN200710077658 A CN 200710077658A CN 101240823 A CN101240823 A CN 101240823A
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- CN
- China
- Prior art keywords
- valve
- brake
- air
- cylinder
- solenoid directional
- 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.)
- Pending
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Abstract
The present invention provides an air-powered contracting brake, mounting a set manually powered scavenging air valve on the appendix between the quick vent valve and the solenoid directional valve in the present brake can achieve the aim of the invention, the air-powered contracting brake has a simple structure, better controlling effect etc.
Description
Technical field:
The present invention relates to a kind ofly utilize aerodynamic force to unclamp the band-type brake sheet, utilize spring force to drive the brake device of brake lining locking brake wheel.
Background technique:
The control system of air-actuated band brake is often by solenoid directional control valve or cammingly hand-operated direction valve, and the control source of the gas is realized the open and close of break to cylinder air feed or exhaust.These two kinds of valves are respectively to switch valve position by electromagnetic force and manual force actuating valve, and what rely on when resetting all is spring force.When selector valve during to the cylinder air feed, break declutches.When selector valve switches valve position, cut off to the cylinder air feed, cylinder is by the rapid escape valve pressure release, the break braking that resets under the effect of spring force.This mode of braking, the speed one of braking is the size that depends on spring force, the 2nd, depend on the speed of cylinder exhaust.It is generally more stable after the size of spring force is adjusted.The speed of cylinder exhaust is relevant with multiple factor, for example: the resistance factor of cylinder itself, the factor of selector valve or other factors.Facts have proved, when the moisture dust-laden of power gas source is big, though passed through filtration treatment, but because of filter precision limited, still cause the big or relief opening of selector valve action resistance to stop up easily, these factors all can cause the cylinder exhaust slowly or arrange gas, and just cylinder and newspaper brake lining reset slowly or do not answer, thereby cause the break brake lag, even can't brake.Simultaneously, in case do not brake slowly or do not brake, often be difficult in time have the situation under control the development out of control of the state of affairs of can only leaving in equipment cabinet because of the cylinder exhaust does not freely cause break.This is breakneck for huge revolving equipment.If braking is a stove high temperature fluent metal, in case the generation braking is out of control, a stove high-temperature liquid metal will come down in torrents, and cause the substantial equipment accident so.
Summary of the invention:
Purpose of the present invention just provides a kind of air-actuated band brake, and this air-actuated band brake is in the cylinder exhaust when freely burst braking is not out of control, thereby can promptly force to allow the cylinder exhaust break fast braking that resets, and avoids the state of affairs to worsen.
To achieve these goals, the present invention adopts following technological scheme:
The present invention installs the manual scavenging air valve of a cover on rapid escape valve in existing break and the pneumatic tube between the solenoid directional control valve, just can reach purpose of the present invention.
Described existing break comprises parts such as band-type brake wheel, brake lining, cylinder, brake spring, rapid escape valve, cammingly hand-operated direction valve, solenoid directional control valve, cam controller.
The present invention has simple in structure, controls characteristics such as effective.
Description of drawings:
Fig. 1, structural representation of the present invention
1, band-type brake wheel 2, brake lining 3, cylinder 4, brake spring 5, rapid escape valve 6, cammingly hand-operated direction valve 7, manual scavenging air valve 8, solenoid directional control valve 9, cam controller
Embodiment:
Contrast Fig. 1 as can be known, the present invention includes parts such as band-type brake wheel 1, brake lining 2, cylinder 3, brake spring 4, rapid escape valve 5, cammingly hand-operated direction valve 6, solenoid directional control valve 8, cam controller 9, it is characterized in that on the pneumatic tube between rapid escape valve 5 and the solenoid directional control valve 8, installing the manual scavenging air valve 7 of a cover.
Claims (1)
1. air-actuated band brake, comprise band-type brake wheel (1), brake lining (2), cylinder (3), brake spring (4), rapid escape valve (5), cammingly hand-operated direction valve (6), solenoid directional control valve (8), cam controller parts such as (9), it is characterized in that on the pneumatic tube between rapid escape valve (5) and the solenoid directional control valve (8), installing a cover manual scavenging air valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100776582A CN101240823A (en) | 2007-02-09 | 2007-02-09 | Air-actuated band brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100776582A CN101240823A (en) | 2007-02-09 | 2007-02-09 | Air-actuated band brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101240823A true CN101240823A (en) | 2008-08-13 |
Family
ID=39932566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100776582A Pending CN101240823A (en) | 2007-02-09 | 2007-02-09 | Air-actuated band brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101240823A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632953A (en) * | 2015-02-05 | 2015-05-20 | 迈柯唯医疗设备(苏州)有限公司 | Medical crane tower brake system |
| CN108679113A (en) * | 2018-04-03 | 2018-10-19 | 浙江易锻精密机械有限公司 | A kind of fly wheel brake radially braked |
| CN113753709A (en) * | 2021-11-09 | 2021-12-07 | 舒马克电梯（张家港）有限公司 | Traction drive passenger elevator with power failure protection function |
-
2007
- 2007-02-09 CN CNA2007100776582A patent/CN101240823A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632953A (en) * | 2015-02-05 | 2015-05-20 | 迈柯唯医疗设备(苏州)有限公司 | Medical crane tower brake system |
| CN108679113A (en) * | 2018-04-03 | 2018-10-19 | 浙江易锻精密机械有限公司 | A kind of fly wheel brake radially braked |
| CN113753709A (en) * | 2021-11-09 | 2021-12-07 | 舒马克电梯（张家港）有限公司 | Traction drive passenger elevator with power failure protection function |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080813 |