CN202717518U - Crane pulley mechanism - Google Patents
Crane pulley mechanism Download PDFInfo
- Publication number
- CN202717518U CN202717518U CN 201220405242 CN201220405242U CN202717518U CN 202717518 U CN202717518 U CN 202717518U CN 201220405242 CN201220405242 CN 201220405242 CN 201220405242 U CN201220405242 U CN 201220405242U CN 202717518 U CN202717518 U CN 202717518U
- Authority
- CN
- China
- Prior art keywords
- support
- shaft
- pulley
- fixed pulley
- electronic scale
- 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 applies to the technical field of cranes and provides a crane pulley mechanism. The crane pulley mechanism is provided with a support. The support is provided with a pulley shaft in rotating mode, and the pulley shaft is provided with a fixed pulley in rotating mode, an installation shaft which is used to install the fixed pulley and two supporting shafts which are supported on the support. The two supporting shafts are arranged in coaxial mode and on two sides of the installation shaft and arranged with the installation shaft in eccentric mode. A balance arm is arranged between the pulley shaft and the support, one end of the balance arm is fixedly arranged on the supporting shafts, and the other end of the balance arm is connected with the support. An electronic scale is arranged between the balance arm and the support and is a pull-type electronic scale. The crane pulley mechanism improves safety performance, and has the advantages of being simple in manufacture and assembly process, high in measurement accuracy, safe and convenient to install and maintain and timesaving and laborsaving. In addition, cost performance of the crane pulley mechanism is greatly higher than that of a traditional fixed pulley device.
Description
Technical field
The utility model belongs to the hoisting crane technical field, relates in particular to a kind of whip-gin mechanism.
Background technology
At present, on hoisting crane is fixed, generally by bearing fixed pulley is installed on the sheave shaft, then that sheave shaft is rack-mount.
Heavier when the weight weight that hoisting crane hangs, in case the center of gravity of weight is offset, support will bear very large application force, and the erecting device between sheave shaft and the support causes safety misadventure with destroyed, and this structure dismounting, difficult in maintenance.
The utility model content
The purpose of this utility model is to provide a kind of whip-gin mechanism, be intended to solve the weight weight of hanging when hoisting crane in the prior art heavier, in case the center of gravity of weight is offset, support will bear very large application force, erecting device between sheave shaft and the support is with destroyed, cause safety misadventure, and the dismounting of this structure, problem difficult in maintenance.
The utility model is to realize like this, a kind of whip-gin mechanism, described whip-gin mechanism is provided with a support, be rotatablely equipped with sheave shaft on the described support, be rotatablely equipped with fixed pulley on the described sheave shaft, described sheave shaft is provided be used to the installation shaft that described fixed pulley is installed and two and is used for being supported on pivot shafts on the support, described two coaxial settings of pivot shaft and be positioned at the both sides of described installation shaft, described pivot shaft and installation shaft eccentric setting; Be provided with equilibrium arm between described sheave shaft and the support, described equilibrium arm one end is fixedly installed on the described pivot shaft, and the other end connects described support, is provided with electronic scale between described equilibrium arm and the support, and described electronics is called pull-type electronic scale.
The utility model has improved safety performance, and fabrication technology is simple, and survey precision is high, installation, maintenance safe convenience and time saving and energy saving, and cost performance is much higher than traditional fixed pulley.
Description of drawings
Fig. 1 is the structural representation of the whip-gin mechanism that provides of the utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the utility model.
Fig. 1 shows the structural representation of the whip-gin mechanism that the utility model provides, and for convenience of explanation, has only provided the part relevant with the utility model among the figure.
The whip-gin mechanism that the utility model provides is provided with a support 1, be rotatablely equipped with sheave shaft 2 on the described support 1, be rotatablely equipped with fixed pulley 3 on the described sheave shaft 2, described sheave shaft 2 is provided be used to the installation shaft 4 that described fixed pulley 3 is installed and two pivot shafts 5 that are used for being supported on the support 1, described two pivot shafts, 5 coaxial settings and be positioned at the both sides of described installation shaft 4, described pivot shaft 5 and installation shaft 4 eccentric settings; Be provided with equilibrium arm 6 between described sheave shaft 2 and the support 1, described equilibrium arm 6 one ends are fixedly installed on the described pivot shaft 5, and the other end connects described support 1, is provided with electronic scale 7 between described equilibrium arm 6 and the support 1, and described electronic scale 7 is pull-type electronic scale.
In the utility model, sheave shaft is designed to eccentric shaft, and sheave shaft rotates and to be installed on the erecting frame, and erecting frame is installed on the dolly table top, compares with traditional fixed pulley, and the installation of the utility model fixed pulley, dismounting and maintenance are all very convenient; Because an end of sheave shaft has designed the equilibrium arm that is connected on the erecting frame, when the crane hanging component weight, the stressed meeting of eccentric sheave shaft automatic rotating balance-seeking, at the equilibrium point place, there is a proportionate relationship between the suffered pulling force of the pulling force of steel rope and equilibrium arm, this value is definite value, it is the ratio of length with the eccentric throw of equilibrium arm, usually the eccentric throw value is between 2.5 ~ 12.5 millimeters, equilibrium arm then value between 250 ~ 500, therefore the suffered pulling force of equilibrium arm is usually less than one of percentage of lineoutofservice signal pull, and not being connected and can being destroyed by this less strength between equilibrium arm and the erecting frame improved safety performance; The package unit fabrication technology is simple, and survey precision is high, installation, maintenance safe convenience and time saving and energy saving, and cost performance is much higher than traditional fixed pulley.
After fixed pulley both sides steel rope is stressed, act on the sheave shaft, so that there is torque difference in eccentric sheave shaft, owing to being provided with pull-type electronic scale between equilibrium arm and the erecting frame, make this torque difference act on pull-type electronic scale by equilibrium arm, therefore fixed pulley can be read the pulling force that equilibrium arm is subject to intuitively, concern according to the moment balance between equilibrium arm and the eccentric throw, can draw the suffered pulling force of steel rope, this numerical value can be set on the electronic scale, just can directly read the pulling force of steel rope, be convenient to learn whether hoisting crane overloads, and has further improved the usage safety performance of hoisting crane.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (1)
1. whip-gin mechanism, it is characterized in that, described whip-gin mechanism is provided with a support, be rotatablely equipped with sheave shaft on the described support, be rotatablely equipped with fixed pulley on the described sheave shaft, described sheave shaft is provided be used to the installation shaft that described fixed pulley is installed and two and is used for being supported on pivot shafts on the support, described two coaxial settings of pivot shaft and be positioned at the both sides of described installation shaft, described pivot shaft and installation shaft eccentric setting; Be provided with equilibrium arm between described sheave shaft and the support, described equilibrium arm one end is fixedly installed on the described pivot shaft, and the other end connects described support, is provided with electronic scale between described equilibrium arm and the support, and described electronics is called pull-type electronic scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405242 CN202717518U (en) | 2012-08-16 | 2012-08-16 | Crane pulley mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405242 CN202717518U (en) | 2012-08-16 | 2012-08-16 | Crane pulley mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717518U true CN202717518U (en) | 2013-02-06 |
Family
ID=47619348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405242 Expired - Fee Related CN202717518U (en) | 2012-08-16 | 2012-08-16 | Crane pulley mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202717518U (en) |
-
2012
- 2012-08-16 CN CN 201220405242 patent/CN202717518U/en not_active Expired - Fee Related
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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: 20130206 Termination date: 20150816 |
|
| EXPY | Termination of patent right or utility model |