CN202322146U - Damping device for drop of lifting hook of crane - Google Patents
Damping device for drop of lifting hook of crane Download PDFInfo
- Publication number
- CN202322146U CN202322146U CN2011204693665U CN201120469366U CN202322146U CN 202322146 U CN202322146 U CN 202322146U CN 2011204693665 U CN2011204693665 U CN 2011204693665U CN 201120469366 U CN201120469366 U CN 201120469366U CN 202322146 U CN202322146 U CN 202322146U
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- China
- Prior art keywords
- shaft
- hydro
- crane
- liquid
- viscous clutch
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- Expired - Fee Related
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Abstract
The utility model discloses a damping device for the drop of a lifting hook of a crane, comprising a winch drum shaft, wherein a hydro-viscous clutch [4] is further connected to the winch drum shaft, and a driven shaft on the hydro-viscous clutch is fixed with the shell of the hydro-viscous clutch. The damping device for the drop of a lifting hook of a crane disclosed by the utility model converts an engagement-disengagement force to a damping force by utilizing the characteristic of adjusting the engagement-disengagement force of the hydro-viscous clutch, and fixing the driven shaft on the shell of the hydro-viscous clutch. Compared with the prior art, the service life is prolonged by about 20 folds, braking efficiency is greatly increased, and other energies except very little control oil pressure are not consumed.
Description
Technical field the utility model relates to a kind of crane hook decline damping arrangement, especially relates to large-tonnage crane hook decline damping arrangement, belongs to the hoisting crane technical field of lifting in the transportation.
The rising of background technology crane hook, descend be through the winch spool volume, put hitch suspension hook hawser realize, and winch spool to be machine-tool output main shaft by hoisting crane turn after the variable transmission mechanism speed change increases square.Generally the just commentaries on classics like diesel engine or motor walks away winch spool, and suspension hook rises; The counter-rotating of motor or another HM Hydraulic Motor make winch spool reverse the cable laying rope that suspension hook is descended.For guaranteeing the decline safety of suspension hook, existing crane hook descending system braking technique generally is the brake gear that on crum shaft, adds anchor ear or other kinds, promptly is to utilize brake facing to control the rotative speed of crum shaft.But along with market is increasing to the lifting tonnage demand of hoisting crane, the rate of wear of brake facing is more and more faster, and the life-span is short and exist unsafe factor.Hoisting crane mud grab bucket (similar suspension hook) like the shipping work engineering only itself just weighs quite a few tons, and because of the suspension hook (mud grab bucket) of super large weight often need be done to rise, decline work, it is very serious to make that brake facing weares and teares again, and every first quarter moon will be changed once.Also having a kind of is when machine-tool is combustion engine, to adopt Jake brake, brake like diesel engine pin down winch spool rotating speed with the too fast decline of control suspension hook, but this will exhaust a large amount of fuel, the higher requirement to cylinder of the energy consumption of its braking is also high.
The sticking power-transfer clutch of liquid is the new drive device that grows up and be used widely in nineteen seventies; It relies on the viscosity of liquid and the shear action transmitting torque of oil film; Change the degree that the moment of torsion between the driving and driven friction lining transmits through the regulating control oil pressure, thereby realize the continuous adjusting of clutching force between the main driven shaft.
The innovation and creation content is to above-mentioned deficiency, and the utility model is exactly to propose a kind of long service life, crane hook decline damping arrangement that brake efficiency is high.
The crane hook decline damping arrangement of the utility model has crum shaft, also is connected with the sticking power-transfer clutch of a liquid on the said crum shaft, and driven shaft and its housing on the sticking power-transfer clutch of liquid are fixed.
The crane hook decline damping arrangement of the utility model has utilized the characteristic of the adjusting clutching force of the sticking power-transfer clutch of liquid, and driven shaft is fixed on its housing, makes clutching force be converted into dumping force.Compared with prior art, prolonged about 20 times its service life, and brake efficiency improves greatly, other energy of not loss except that some control oil pressure seldom.
The crane hook decline damping arrangement of the utility model, crum shaft is connected with machine-tool through speed change, driving device, and the sticking power-transfer clutch of said liquid is connected on the output shaft of transmission system through gear cluster.
Description of drawings Fig. 1 is the structural representation of a kind of crane hook decline damping arrangement of the utility model, among the figure: 1, input shaft, 2, driving gear, 3, cabinet; 4, the sticking power-transfer clutch of liquid (damping with), 5, axle, 6, the reversing driven gear, 7, output shaft; 8, reversing driving gear, 9, turbine transformer, 10, adapter shaft, 11, the sticking power-transfer clutch (just leaving and share) of liquid; 12, just changeing driven gear, 13, the positive rotating shaft SAH of holding concurrently, 14, the bearing cap shim permanent joint of holding concurrently.
Do further description in the face of the utility model under the specific embodiment.
As shown in Figure 1; The crane hook decline damping arrangement of the utility model; The output shaft 7 that connects winch spool is arranged, and output shaft is passed to axle 5 via reversing driving gear 8, reversing driven gear 6, and axle 5 is connected to the imput shaft of the sticking power-transfer clutch of liquid (damping with) 4; The housing of the sticking power-transfer clutch of liquid is captiveed joint with cabinet 3, and driven shaft and its housing of the sticking power-transfer clutch of liquid are used bolt;
Its principle of work is: when suspension hook descends, and the winch spool reversing, output shaft 7 just changes through the main shaft of the sticking power-transfer clutch of gear set drive liquid (damping is used); The thickness of controlling between the driving and driven friction lining through oil pressure dwindles, and clutching force is increased, because the housing of the sticking power-transfer clutch of liquid (damping is used) is fixedly mounted on the cabinet; And driven shaft is also captiveed joint with housing; Being that driven shaft is fixing does not change, and therefore, the clutching force counteraction of the sticking power-transfer clutch of liquid is converted into the dumping force of output shaft; Can reach the rotating speed of control crum shaft through the size of the film thickness control dumping force between the sticking driving and driven friction lining of power-transfer clutch of regulator solution, reach the steadily purpose of safety decline of suspension hook; When suspension hook rises when promptly just changeing transmission, the thickness that liquid glue between the driving and driven friction lining of power-transfer clutch (damping with) increases, and clutching force reduces, and until the dumping force disappearance, promptly is similar to connection and is thrown off.
The just transformation quick-action power drive path that has also shown output shaft among the figure is that input shaft 1-driving gear 2-is just changeing sticking power-transfer clutch (just leaving and share) the 11-adapter shaft 10-turbine transformer 9-output shaft 7 of driven gear 12-liquid successively.
Claims (2)
1. a crane hook decline damping arrangement has crum shaft, it is characterized in that also being connected with on the said crum shaft the sticking power-transfer clutch of a liquid, and driven shaft and its housing on the sticking power-transfer clutch of liquid are fixed.
2. crane hook decline damping arrangement as claimed in claim 1 is characterized in that crum shaft passes through speed change, driving device is connected with machine-tool, and the sticking power-transfer clutch of said liquid is connected on the output shaft of transmission system through gear cluster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204693665U CN202322146U (en) | 2011-11-23 | 2011-11-23 | Damping device for drop of lifting hook of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204693665U CN202322146U (en) | 2011-11-23 | 2011-11-23 | Damping device for drop of lifting hook of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322146U true CN202322146U (en) | 2012-07-11 |
Family
ID=46434136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204693665U Expired - Fee Related CN202322146U (en) | 2011-11-23 | 2011-11-23 | Damping device for drop of lifting hook of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759271A (en) * | 2019-11-28 | 2020-02-07 | 浦江培咯电子科技有限公司 | Crane power-off descending object hanging device |
-
2011
- 2011-11-23 CN CN2011204693665U patent/CN202322146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759271A (en) * | 2019-11-28 | 2020-02-07 | 浦江培咯电子科技有限公司 | Crane power-off descending object hanging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141123 |
|
| EXPY | Termination of patent right or utility model |