CN201136754Y - Electric hoist - Google Patents
Electric hoist Download PDFInfo
- Publication number
- CN201136754Y CN201136754Y CNU2007200921986U CN200720092198U CN201136754Y CN 201136754 Y CN201136754 Y CN 201136754Y CN U2007200921986 U CNU2007200921986 U CN U2007200921986U CN 200720092198 U CN200720092198 U CN 200720092198U CN 201136754 Y CN201136754 Y CN 201136754Y
- Authority
- CN
- China
- Prior art keywords
- drg
- electric block
- shaft
- arrester
- brake
- 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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- Braking Arrangements (AREA)
Abstract
The utility model discloses an electric block which relates to a braking device of a reversing winch, and aims to provide an arrester of the electric block, which has reliable braking performance. The electric block has the technical proposal that the electric block comprises the arrester, and the other end of a winding drum is provided with the other arrester which is connected with a drum shaft. The other arrester is a magnetic brake or a hydraulic brake. The other end of the winding drum is provided with another arrester which is connected with one shaft of a gear-box which is connected with the drum shaft. The arrester is connected with one shaft of the gear-box, and the shaft is a high-speed rotating shaft of the gear-box. The other arrester is a magnetic brake or a conic motor brake or a hydraulic brake. The electric block is used for a crane.
Description
Technical field:
The utility model relates to a kind of winch brake equipment, particularly a kind of electric block.
Background technology:
Existing electric block is made up of motor, retarder and reel etc., drg commonly used is the Cone-shaped electric machine drg, this electric block fractures or during drive shafts fracture when the tooth that retarder occurs, lock torque can't be delivered on the reel, reel just hurtles down, thereby the braking reliability of this electric block is lower, is absolutely unsafe when dangerous operations such as metallurgical handling molten steel.A kind of dual brake electric block is also arranged in addition, and adopting has the Cone-shaped electric machine of braking function to be used as power, and motor shaft passes in the reel and is connected with reducer input shaft by coupler, and the input shaft of speed reducer other end is connected with another drg.This dual brake electric block can only solve when former brake failure and can brake reel, still can not solve the braking problem of broken teeth or off-axis.
Summary of the invention:
The purpose of this utility model provides a kind of drg of deceleration and stopping performance failure-free electric block.The technical solution of the utility model is that a kind of electric block comprises drg, it is characterized in that: be provided with a drg in addition at the other end of reel and be connected with drum shaft.Described another drg is magnet stopper or is hydraulic brake.Be provided with a drg and change speed gear box one in addition at the other end of reel and be connected, this change speed gear box is connected with drum shaft.Described drg is connected with one of change speed gear box, and this is the high speed shaft of change speed gear box.Described another drg is magnet stopper or Cone-shaped electric machine braking or hydraulic brake.The utility model has been owing to adopted dual brake, thereby has braking failure-free remarkable advantage compared with the prior art.
Description of drawings:
Accompanying drawing is the brake structural scheme drawing of the utility model electric block.
The specific embodiment:
In conjunction with above-mentioned accompanying drawing the utility model is elaborated, in order to solve the low problem of braking reliability of existing electric block drg, set up another change-speed box 2 and drg 1 at the other end of reel, the input shaft of this change-speed box is connected with 3 on reel, its high speed shaft drg therewith connects, this drg is existing drg commonly used, as tile fragment formula magnet stopper, the plane magnet stopper, also can adopt hydraulic electric motor to promote connecting rod mechanism, the driving tile fragment advances, move back motion braking S. A. drg, can also adopt the Cone-shaped electric machine stop mechanism to brake, the Cone-shaped electric machine of this moment is optional uses lower-powered motor.Another technical scheme of the present utility model is only to establish another drg at the other end of reel and be connected with drum shaft.
The drg principle of work of the utility model electric block is, electric block is when normal lifting, the change-speed box that is increased is not load running, at general glancing impact, owing to there are two drgs to brake simultaneously, it brakes fast and reliable more, in retarder 4 gears take place when broken teeth or drive shafts fracture, at this moment, the lock torque of former stop mechanism 5 can not be delivered on the reel and can't brake, but the purpose that the lock torque of another drg is realized braking by another change-speed box and the drum shaft bonded assembly high speed shaft of increase, because the change-speed box that increases is no-load running, broken teeth can not take place in it or the high speed shaft that is connected with drum shaft can not rupture yet, thereby the deceleration and stopping performance of this drg is very reliable, is particularly suitable for smelter handling molten steel or other high-risk operations.
Claims (5)
1, a kind of electric block comprises drg, it is characterized in that: be provided with a drg in addition at the other end of reel and be connected with drum shaft.
2, a kind of electric block as claimed in claim 1 is characterized in that: described another drg is magnet stopper or is hydraulic brake.
3, a kind of electric block comprises drg, it is characterized in that: be provided with a drg and change speed gear box one in addition at the other end of reel and be connected, this change speed gear box is connected with drum shaft.
4, electric block as claimed in claim 3 is characterized in that: described drg is connected with one of change speed gear box, and this is the high speed shaft of change speed gear box.
5, as claim 3 or 4 described electric blocks, it is characterized in that: described another drg is magnet stopper or Cone-shaped electric machine braking or hydraulic brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200921986U CN201136754Y (en) | 2007-10-10 | 2007-10-10 | Electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200921986U CN201136754Y (en) | 2007-10-10 | 2007-10-10 | Electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201136754Y true CN201136754Y (en) | 2008-10-22 |
Family
ID=40037445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200921986U Expired - Fee Related CN201136754Y (en) | 2007-10-10 | 2007-10-10 | Electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201136754Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341339A (en) * | 2009-03-02 | 2012-02-01 | 通用电气公司 | Drive assembly and apparatus for hoist |
-
2007
- 2007-10-10 CN CNU2007200921986U patent/CN201136754Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341339A (en) * | 2009-03-02 | 2012-02-01 | 通用电气公司 | Drive assembly and apparatus for hoist |
| CN102341339B (en) * | 2009-03-02 | 2014-05-07 | 通用电气公司 | Drive assembly and apparatus for hoist |
| US8985555B2 (en) | 2009-03-02 | 2015-03-24 | General Electric Company | Drive assembly and apparatus for hoist |
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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: 20081022 Termination date: 20091110 |