CN201817225U - Winch barrel-limiting and braking mechanism - Google Patents
Winch barrel-limiting and braking mechanism Download PDFInfo
- Publication number
- CN201817225U CN201817225U CN2010201408937U CN201020140893U CN201817225U CN 201817225 U CN201817225 U CN 201817225U CN 2010201408937 U CN2010201408937 U CN 2010201408937U CN 201020140893 U CN201020140893 U CN 201020140893U CN 201817225 U CN201817225 U CN 201817225U
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- CN
- China
- Prior art keywords
- winch drum
- winch
- braking mechanism
- barrel
- winch barrel
- 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
The utility model relates to a mechanical drive mechanism, wherein a set of winch barrel-limiting and braking mechanism is added in the existing winch barrel mechanism for limiting the rotation of the winch barrel by mechanical strength. The winch barrel-limiting and braking mechanism consists of a guide screw, a traveling screw nut, a baffle wall and the like, wherein the guide screw is connected with a winch shaft of the winch barrel, and the traveling screw nut which is sleeved on the guide screw is limited to axially move rather than rotation. A contact point of a control valve is firstly touched before braking, the power input for rotating the winch barrel is cut off, the winch barrel stops moving by the baffle of the baffle wall, the guide screw is forced not to be rotated any longer, the force is fed back to lead the winch shaft not to be rotated, and the winch barrel stops rotating. The structural strength of the limiting and braking mechanism is larger than that of the power input part of the winch barrel, so that only some components of the power input part are damaged when the traveling screw nut is moved to the baffle wall to be baffled even the power input is not cut off caused by control failure, and therefore, the barrel-limiting and braking mechanism compulsively leads the winch barrel to stop rotating, thereby avoiding serious accidents caused by the excessive rotation of the winch barrel.
Description
Technical field the utility model relates to a kind of mechanical transmission mechanism, and it is to add the spacing braking mechanism of a cover winch drum in existing winch drum mechanism, goes to limit the rotation of winch drum with the intensity of mechanism.It is made up of leading screw, the nut that moves about, retaining wall etc., its leading screw links to each other with the winch axle of winch drum, the nut that moves about that is enclosed within on the leading screw is tied and can not rotates, can only move axially, bump the control cock contact before the brake earlier, cut off the power input of winch drum rotation, moved by the stop that stops of retaining wall, force leading screw no longer to rotate, feedback skeining axletree can not rotate, and the winch drum stop rotates.The structural strength of winch drum braking mechanism is greater than the structural strength of winch drum power importation, even Control Failure and do not cut off power input so, the nut that moves about moves on to the vexed car in retaining wall place, what be damaged also is the member of power importation, winch drum is forced to the stop rotation, avoids taking place excessively rotating the Yan Chong Shi event that causes because of winch drum.
Background technology is present, and known winch drum is to operate brake lever by the people to remove to control the rotation of winch drum or stop.Operation brake personnel will pay close attention to the object that the steel rope of winch drum unofficial biography cares for constantly and walk about, and accept the password of ground operating personal, indication, remove to spur brake lever with range estimation in good time, cut off the power of winch drum rotation, lean on the wheel hub of the friction force friction winch cylinder of brake strap to go braking, or remove to push the axial end of winch drum with pan, it is so-called disc brake, when transmitting large torque, also to add servomechanisms such as upper cylinder, the for example drilling well in the petroleum industry, remedial work: the steel rope of winch drum unofficial biography is through the crown sheave on towering derrick top, hang hook block, hang suspension ring on the hook block and remove to link water cock or drilling rod or oil pipe etc., pithead position will be given the terrestrial operation personnel, aside the operation brake personnel of moving back will pay close attention to the walking of suspension, the password of well head operating personal is accepted in the Asia, indication, go to operate with range estimation, just in case make a fault, winch drum will excessively rotate: if excessively lifting may cause hook block collision overhead traveling crane, the collision overhead traveling crane can cause the weight tenesmus, derrick major accident such as collapse; If excessive descent may cause hook block to smash serious accidents such as surface facility and personnel.The purpose of this utility model is exactly that a kind of spacing braking mechanism of winch drum that safety control is arranged will be provided.
Utility model content the purpose of this utility model is achieved in that the winch axle of winch drum passes through denture clutch, or belt pulley, or sprocket wheel links to each other with the leading screw of the spacing braking mechanism of this winch drum, rotation along with the winch axle, leading screw is and then rotation also, being enclosed within the nut that moves about on the leading screw does not rotate because of being tied and axially moves, move towards the retaining wall of a side, before arriving retaining wall, the power ， And that runs into the rotation of control cock break of contact winch drum earlier is subjected to the damping buffering of spring, the stop that stops because of retaining wall moves at last, force leading screw not rotate, feedback skeining axletree can not rotate, and reaches the purpose of the left alone without help commentaries on classics of winch drum; The intensity of the spacing braking mechanism of winch drum is greater than the component strength of winch drum rotation, even do not cut off the power input of winch drum rotation so for some reason, the nut that moves about is gone to the vexed car in retaining wall place, the also power input link just of damage, and the rotation of winch drum is never offside.Overlap a fine tuning structure in the leading screw sky: adorn one group of bolt on the dish, it is placed on moves about between nut and the retaining wall,, adjust the distance of move about nut and retaining wall, be used to set winch drum positioning of rotating accurately by regulating the length that bolt stretches out.
Description of drawings is described further the utility model below in conjunction with drawings and Examples:
Fig. 1 is present known winch drum condition of service;
Fig. 2 is the scheme drawing that connects the spacing braking mechanism of winch drum with linear fashion;
Fig. 3 is the scheme drawing that connects the spacing braking mechanism of winch drum with parallel mode;
Fig. 4 is the relevant section-drawing of an embodiment of the present utility model.
Among the figure: platform (1), well head (2), traction thing (3), hook (4), crown sheave (5), steel rope (6), derrick (7), winch drum (8), chain (9), brake lever (10), headstock (11), winch axle (12), denture clutch (13), the spacing braking mechanism of winch drum (14), sprocket wheel A (15), chain (16), sprocket wheel B (17), leading screw (18), retaining wall (19), control cock contact (20), stage clip (21), trimming bolt (22), bolt block (23), nut (24), bolting pad (25), nut (26) moves about.
The specific embodiment has shown present known winch drum condition of service in Fig. 1.Winch drum (8) is housed on platform (1), headstock (11) drives winch drum (8) rotation by chain (9), overhanging steel rope (6) is through the lifting of crown sheave (5) traction hook (4), hook (4) is class traction thing such as suspension drilling rod or oil pipe (3) input well head (2) down, the operating personal operation is given in the position that well head (2) is located, handling the brake personnel moves back aside, with the password of estimating and accepting the shaft mouth operation personnel, the rotation of driving or stop winch drum (8) is gone in indication, make traction thing (3) lifting or left alone without help staying, just in case error is then the offside meeting of lifting of hook (4) causes serious E Shi.
Shown that in Fig. 2 the winch axle (12) of twisting winch drum (8) by denture clutch (13) turn-screw (18), connects the scheme drawing of the spacing braking mechanism of winch drum (14) with linear fashion.Denture clutch (13) can be pure machinery, also can be electromagnetic type, or pneumatic or hydraulic pressure, link with operating system, be operating system this clutch of just often can unsnaping, in case operating system is malfunctioning, the spacing braking mechanism of demand working winch drum (14).
Shown that in Fig. 3 the winch axle (12) of twisting winch drum (8) passes to leading screw (18) through sprocket wheel A (15), chain (16), sprocket wheel B (17), connected the scheme drawing of the spacing braking mechanism of winch drum (14) with parallel mode.Change the transmitting ratio between sprocket wheel, can carry out speed change.
The concrete structure that in Fig. 4, has shown the spacing braking mechanism of winch drum (14): through chain (16), the transmission of sprocket wheel B (17), the rotation of winch drum (8) has driven leading screw (18) and has also rotated, being enclosed within the nut that moves about (26) on the leading screw (18) does not only rotate because of being tied and axially moves, move towards the retaining wall (19) of a side, run into one group of sky in the moving process earlier and be enclosed within damping structure on the leading screw (18), collide control cock contact (20) again, cut off the power of winch drum (8) rotation earlier, limited the motion of the nut that moves about (26) because of retaining wall (19) then, force leading screw (18) not rotate, feedback skeining axletree (12) can not rotate, and causes the left alone without help commentaries on classics of winch drum (8).This group damping structure is made up of bolting pad (25), nut (24), bolt block (23), trimming bolt (22) and stage clip (21), regulate the length that trimming bolt (22) stretches out, go to adjust the accurate stop position of winch drum (8), stage clip (21) then plays buffer action.The intensity of the spacing braking mechanism of winch drum (14) is greater than the intensity of the power input link of winch drum (8), even control system is malfunctioning so, do not cut off the rotary power of winch drum (8), the nut (26) that moves about is gone to retaining wall (18) and is located vexed car, what be damaged also is the power input link of winch drum (8), excessively rotation of winch drum (8) can not take place, and has just avoided the Yan Chong Shi event that causes thus yet.
Claims (6)
1. one kind is removed to limit the spacing braking mechanism of winch drum of winch drum rotation with mechanical strength, it is characterized in that: add the spacing braking mechanism of winch drum that a cover is made up of leading screw, the nut that moves about, retaining wall etc. in existing winch drum mechanism.
2. according to the spacing braking mechanism of the winch drum of claim 1, it is characterized in that: the structural strength of the spacing braking mechanism of winch drum is greater than the structural strength of winch drum power input link.
3. according to the spacing braking mechanism of the winch drum of claim 1, it is characterized in that: the winch axle of winch drum is connected with the leading screw of the spacing braking mechanism of winch drum.
4. according to the spacing braking mechanism of the winch drum of claim 1, it is characterized in that: the nut that moves about that is enclosed within on the leading screw can not rotate, and only axially moves on leading screw.
5. according to the spacing braking mechanism of the winch drum of claim 1, it is characterized in that: retaining wall all is equipped with in the both sides of the nut that moves about, and at retaining wall and move about and all load onto the control cock contact of winch drum input rotary power between the nut, cuts off the power input before accomplishing to brake earlier.
6. according to the spacing braking mechanism of the winch drum of claim 1, it is characterized in that: all load onto damping structure between the control cock of the nut both sides of moving about and the retaining wall, be subjected to buffering brake more earlier after allowing cylinder cut off power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201408937U CN201817225U (en) | 2010-02-28 | 2010-02-28 | Winch barrel-limiting and braking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201408937U CN201817225U (en) | 2010-02-28 | 2010-02-28 | Winch barrel-limiting and braking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817225U true CN201817225U (en) | 2011-05-04 |
Family
ID=43915189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201408937U Expired - Fee Related CN201817225U (en) | 2010-02-28 | 2010-02-28 | Winch barrel-limiting and braking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539029A (en) * | 2012-07-09 | 2014-01-29 | 江苏海泰船舶成套设备有限公司 | Lifting winch with lifting limit device |
| CN106115535A (en) * | 2016-08-01 | 2016-11-16 | 山东省农业机械科学研究院 | Electromagnetism screw rod brake unit for lifting device |
| CN110510048A (en) * | 2019-08-30 | 2019-11-29 | 马鞍山绿准数控科技有限公司 | Bicycle brake system |
-
2010
- 2010-02-28 CN CN2010201408937U patent/CN201817225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539029A (en) * | 2012-07-09 | 2014-01-29 | 江苏海泰船舶成套设备有限公司 | Lifting winch with lifting limit device |
| CN106115535A (en) * | 2016-08-01 | 2016-11-16 | 山东省农业机械科学研究院 | Electromagnetism screw rod brake unit for lifting device |
| CN110510048A (en) * | 2019-08-30 | 2019-11-29 | 马鞍山绿准数控科技有限公司 | Bicycle brake system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Chun Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120228 |