CN201980921U - Mounting structure of limit switch for crane - Google Patents
Mounting structure of limit switch for crane Download PDFInfo
- Publication number
- CN201980921U CN201980921U CN2010206896138U CN201020689613U CN201980921U CN 201980921 U CN201980921 U CN 201980921U CN 2010206896138 U CN2010206896138 U CN 2010206896138U CN 201020689613 U CN201020689613 U CN 201020689613U CN 201980921 U CN201980921 U CN 201980921U
- Authority
- CN
- China
- Prior art keywords
- limit switch
- hoisting crane
- rotating shaft
- crane
- suspension hook
- 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 mounting structure of a limit switch for a crane, which comprises a limit switch provided with a sliding shaft for the crane and a lifting hook winding drum provided with a rotating shaft, and is characterized in that sprocket wheels are mounted on the sliding shaft of the limit switch and the rotating shaft of the lifting hook winding drum; the sprocket wheel on the sliding shaft of the limit switch is connected with the sprocket wheel on the lifting hook winding drum through a chain; and the limit switch is mounted on a hoisting beam of the crane. The sliding shaft of the limit switch is in transmission with the rotating shaft of the lifting hook winding drum through the chain, so that even if the lifting hook winding drum sways or shakes in operation, a travel switch is not influenced, which can improve and prolong the use precision and the service life of the limit switch; and in addition, the mounting freedom of the limit switch is large, and the limit switch can be mounted in a proper position according to the structure of the crane, so that the limit switch is mounted simply.
Description
Technical field
The utility model belongs to the weight-lifting equipment technical field, particularly relates to a kind of mounting structure of hoisting crane limit switch.
Background technology
At present, hoisting crane has become indispensable mechanical equipment in the various fields such as nuclear power, military project, metallurgy, machinery, chemical industry and petroleum-based energy.Hoisting crane must be installed inhibiting device, in order to the limes superiors position that the restriction weight is lifted by crane, avoids unnecessary physical damage or personal property damage.Hoisting crane generally limits the lifting limes superiors position of hoisting crane with limit switch, this travel switch is specially for hoisting crane designs, and travel switch has movable axis.In the prior art, the mounting structure of limit switch is: the limit switch operated by rotary motion is on the support of suspension hook reel one side, and the movable axis of limit switch is by the rotating shaft hard link of coupler and suspension hook reel.Above-mentioned mounting structure is limited by crane structure easily, install inconvenient, in addition, hoisting crane is in the suspension hook weight hoists process, be subjected to the influence of weight weight and suspension hook reel mounting structure, the suspension hook reel has and rocks or shake, and will drive like this to rock with suspension hook reel bonded assembly limit switch or shake, and influences the limit accuracy and the service life of travel switch.
Summary of the invention
The utility model provides a kind of simple in structure, easy for installation and can increase the mounting structure of heavy-duty machine limit switch in the service life of limit switch for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of mounting structure of hoisting crane limit switch, comprise limit switch that has movable axis that is used for hoisting crane and the suspension hook reel that has rotating shaft, it is characterized in that: in the rotating shaft of the movable axis of described limit switch and suspension hook reel sprocket wheel is installed all, sprocket wheel in the rotating shaft of the sprocket wheel on the movable axis of described limit switch and suspension hook reel is connected by chain, and described limit switch is installed on the lifting beam of hoisting crane.
The utility model can also adopt following technical scheme:
Described limit switch is installed on the lifting beam of hoisting crane by base plate and fastener.
Described sprocket wheel is installed in the rotating shaft of the movable axis of limit switch and suspension hook reel by spline and jackscrew.
On the movable axis of described limit switch rolling bearing is installed.
Advantage and the good effect that the utlity model has are: because as above technical scheme of this novel employing, be in the rotating shaft of the movable axis of limit switch and suspension hook reel sprocket wheel to be installed all, between the rotating shaft of the movable axis of limit switch and suspension hook reel by chain gear, like this, even the generation when work of suspension hook reel is rocked or is shaken, travel switch can be do not influenced yet, the service precision and the service life of limit switch can be improved.In addition, be connected by chain between limit switch and the suspension hook reel, the installation degree of freedom of limit switch is big, can be installed in according to the structure of hoisting crane on the suitably suitable position, installs simple.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, limit switch; 1-1, movable axis; 2, suspension hook reel; 2-1, rotating shaft; 3, base plate; 4, chain.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, a kind of mounting structure of hoisting crane limit switch, comprise the limit switch 1 and the suspension hook reel 2 that are used for hoisting crane, have movable axis 1-1 on the limit switch 1, have rotating shaft 2-1 on the suspension hook reel 2, limit switch 1 is installed on the lifting beam of hoisting crane, in the present embodiment by base plate 3 and fastener, limit switch 1 is selected the LX7-1/2 travel switch for use, and the fastener of fixed limit switch 1 is a bolt.On the movable axis 1-1 of limit switch 1 and the rotating shaft 2-1 of suspension hook reel 2 sprocket wheel is installed all, sprocket wheel is installed on the rotating shaft 2-1 of the movable axis 1-1 of limit switch 1 and suspension hook reel 2 by spline and jackscrew, sprocket wheel on the movable axis 1-1 of limit switch 1 is connected by chain 4 with sprocket wheel on the rotating shaft 2-1 of suspension hook reel 2, like this, even suspension hook reel 2 generation when work is rocked or is shaken, can not influence limit switch 1 yet, can improve the service precision and the service life of limit switch 1, in addition, be connected by chain 4 between limit switch 1 and the suspension hook reel 2, the installation degree of freedom of limit switch 1 is big, can be installed in according to the structure of hoisting crane on the suitably suitable position, install simple.Rolling bearing (not expressing among the figure) is installed on the movable axis 1-1 of limit switch 1, so also can effectively prevents movable axis 1-1 end float misalignment, increase the service life of limit switch 1.
The mounting structure of this hoisting crane limit switch 1 after the installation, need be adjusted limit switch 1 repeatedly under the hoisting crane light condition, adjust the limes superiors position of hoisting crane with this.
Claims (4)
1. the mounting structure of a hoisting crane limit switch, comprise limit switch that has movable axis that is used for hoisting crane and the suspension hook reel that has rotating shaft, it is characterized in that: in the rotating shaft of the movable axis of described limit switch and suspension hook reel sprocket wheel is installed all, sprocket wheel in the rotating shaft of the sprocket wheel on the movable axis of described limit switch and suspension hook reel is connected by chain, and described limit switch is installed on the lifting beam of hoisting crane.
2. the mounting structure of hoisting crane limit switch according to claim 1 is characterized in that: described limit switch is installed on the lifting beam of hoisting crane by base plate and fastener.
3. the mounting structure of hoisting crane limit switch according to claim 1 and 2 is characterized in that: described sprocket wheel is installed in the rotating shaft of the movable axis of limit switch and suspension hook reel by spline and jackscrew.
4. the mounting structure of hoisting crane limit switch according to claim 1 and 2 is characterized in that: on the movable axis of described limit switch rolling bearing is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896138U CN201980921U (en) | 2010-12-30 | 2010-12-30 | Mounting structure of limit switch for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896138U CN201980921U (en) | 2010-12-30 | 2010-12-30 | Mounting structure of limit switch for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980921U true CN201980921U (en) | 2011-09-21 |
Family
ID=44608385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206896138U Expired - Fee Related CN201980921U (en) | 2010-12-30 | 2010-12-30 | Mounting structure of limit switch for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980921U (en) |
-
2010
- 2010-12-30 CN CN2010206896138U patent/CN201980921U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20131230 |