CN201305421Y - Crane hoisting heavy hammer limiting switch - Google Patents
Crane hoisting heavy hammer limiting switch Download PDFInfo
- Publication number
- CN201305421Y CN201305421Y CNU2008201924685U CN200820192468U CN201305421Y CN 201305421 Y CN201305421 Y CN 201305421Y CN U2008201924685 U CNU2008201924685 U CN U2008201924685U CN 200820192468 U CN200820192468 U CN 200820192468U CN 201305421 Y CN201305421 Y CN 201305421Y
- Authority
- CN
- China
- Prior art keywords
- weight
- heavy hammer
- limit switch
- cable
- lever
- 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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a crane hoisting heavy hammer limiting switch which comprises a bracket and a heavy hammer limiting switch mounted on the bracket. The heavy hammer limiting switch consists of a counterweight heavy hammer and a lever which are hinged; a heavy hammer towing wire cable is hitched at the outer end of the lever; the heavy hammer is hung at the bottom end of the heavy hammer towing wire cable; and support rods are arranged on the bracket and at the bottom of the lever. The utility model solves the problems that the contact of the heavy hammer limiting switch is easy to be damaged and that the wire cable for hanging the heavy hammer limiting switch is easy to wind on the hoisting cable, thus ensuring normal and stable operation of the complete continuous casting production of the steel mill.
Description
Technical field
The utility model relates to the crane for steelworks use technical field, specifically a kind ofly is applicable to that the crane for steelworks use hoisting system prevents that the crane gib head from rising to and continues the safety guard up lifted behind the suitable height, i.e. crane elevator rising weight limit switch.
Background technology
On the hoisting system of crane; for the gib head that prevents crane goes up to the sky, lands; cause great equipment and fatal accident,, must install and prevent that the crane gib head from rising to the safety guard more than two kinds of forms that continue up to lift behind the suitable height by the requirement of national crane for steelworks use technical standard.
For a long time, except that the gear limit, also must be equipped with the weight limit switch, but in maintenance, the maintenance of crane were put into practice, the existing weight limit switch fault rate of using was still quite high, mainly contains weight limit switch contact and damages easily, the limit steel cable that hangs weight twines the elevator steel cable easily, cause the limit steel cable that hangs weight disconnected, fault such as the weight limit is inoperative directly threatens the normal smooth operation that steel mill's sequence casting is produced.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art, and a kind of crane elevator rising weight limit switch is provided, and it can solve following two technical matterss: the easy problem of damaging of contact that 1, has solved vertical limit switch; 2, solved vertical limit switch weight and hung the problem that steel cable twines the elevator steel cable easily, be i.e. the weight problem of spinning and changeing.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of crane elevator of the utility model rising weight limit switch, comprise support and rack-mount weight limit switch, described weight limit switch is hinged by a counter-balanced heavy hammer and a lever and constitutes, the outer end of lever hangs with the weight traction steel rope of cable, weight traction steel rope of cable bottom is hung with weight, on support, lever bottom is provided with a pressure pin.
Described weight is cylindrical, and the weight center-point is a weight traction steel rope of cable hitch point, departs from the weight center position on the weight and is provided with a through hole, is penetrated with an elevator steel cable in the described through hole, and weight is penetrated with an other elevator steel cable outward.
The utility model makes the contact of weight limit switch be not easy to damage because the lever bottom has pressure pin to hold lever.And the weight through hole radius ratio outside the elevator steel cable is less, in the process of crane operation, the weight of weight limit switch hangs can be around the commentaries on classics of spinning of elevator steel cable, can not cause weight limit switch weight to hang steel cable and twine the elevator steel cable, cause the weight suspension steel cable of weight limit switch to fracture, thereby descend greatly than such fault before improving.
The beneficial effect of the technical scheme that the utility model provides is: the utility model has fundamentally solved the high problem of weight limit switch fault rate that the crane hoisting system exists for a long time, the easy problem of damaging of contact and the weight limit switch weight that have solved the weight limit switch hang the problem that steel cable twines the elevator steel cable easily, have guaranteed the normal smooth operation that steel mill's sequence casting is produced.
Description of drawings
Fig. 1 is a weight limit switch structural representation described in the utility model.
Fig. 2 is a weight structural representation described in the utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of crane elevator of the utility model rising weight limit switch, comprise support 1 and rack-mount weight limit switch, described weight limit switch is hinged by a counter-balanced heavy hammer 2 and a lever 3 and constitutes, the outer end of lever hangs with weight traction steel rope of cable 4, weight traction steel rope of cable bottom is hung with weight, on support, lever bottom is provided with a pressure pin 5.
As shown in Figure 2, described weight 6 is cylindrical, and the weight center-point is a weight traction steel rope of cable hitch point 7, departs from the weight center position on the weight and is provided with a through hole 8, be penetrated with an elevator steel cable 9 in the described through hole, weight is penetrated with an other elevator steel cable 10 outward.
The utility model makes the contact of weight limit switch be not easy to damage because the lever bottom has pressure pin to hold lever.And the weight through hole radius ratio outside the elevator steel cable is less, in the process of crane operation, the weight of weight limit switch hangs can be around the commentaries on classics of spinning of elevator steel cable, can not cause weight limit switch weight to hang steel cable and twine the elevator steel cable, cause the weight suspension steel cable of weight limit switch to fracture, thereby descend greatly than such fault before improving.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1, a kind of crane elevator rising weight limit switch, comprise support and rack-mount weight limit switch, described weight limit switch is hinged by a counter-balanced heavy hammer and a lever and constitutes, the outer end of lever hangs with the weight traction steel rope of cable, weight traction steel rope of cable bottom is hung with weight, it is characterized in that: on support, lever bottom is provided with a pressure pin.
2, crane elevator rising weight limit switch as claimed in claim 1, it is characterized in that: described weight is cylindrical, the weight center-point is a weight traction steel rope of cable hitch point, depart from the weight center position on the weight and be provided with a through hole, be penetrated with an elevator steel cable in the described through hole, weight is penetrated with an other elevator steel cable outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201924685U CN201305421Y (en) | 2008-11-17 | 2008-11-17 | Crane hoisting heavy hammer limiting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201924685U CN201305421Y (en) | 2008-11-17 | 2008-11-17 | Crane hoisting heavy hammer limiting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305421Y true CN201305421Y (en) | 2009-09-09 |
Family
ID=41097886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201924685U Expired - Fee Related CN201305421Y (en) | 2008-11-17 | 2008-11-17 | Crane hoisting heavy hammer limiting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305421Y (en) |
-
2008
- 2008-11-17 CN CNU2008201924685U patent/CN201305421Y/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: 20090909 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |