CN201027128Y - Automatically narrowing or widening device of tower hanged grounding cable - Google Patents
Automatically narrowing or widening device of tower hanged grounding cable Download PDFInfo
- Publication number
- CN201027128Y CN201027128Y CNU2007201440292U CN200720144029U CN201027128Y CN 201027128 Y CN201027128 Y CN 201027128Y CN U2007201440292 U CNU2007201440292 U CN U2007201440292U CN 200720144029 U CN200720144029 U CN 200720144029U CN 201027128 Y CN201027128 Y CN 201027128Y
- Authority
- CN
- China
- Prior art keywords
- cable
- cable reel
- draw
- driving wheel
- tower crane
- 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 - Lifetime
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- Electric Cable Installation (AREA)
Abstract
The utility model discloses an automatic coiling and decoiling device for earthing cables of tower crane comprising a cable seat and a cable reel. The utility model is characterized in that: the automatic coiling and decoiling device also comprises a driving wheel, a driven wheel and a chain, the driving wheel is mechanically fixed on the spindle of the equipment mechanism, the driven wheel is fixed on the cable seat and is provided with the cable reel, the chain is arranged between the driving wheel and the driven wheel as a transmission part, the transmission ratio of the driving wheel and the driven wheel can meet the requirement that the working stroke of the equipment mechanism is equal to the coiling and decoiling length of the cable reel. The utility model has the advantages that: the earthing cable automatically coils and decoils with the working condition of the tower crane, eliminates the heavy physical labor, and ensures the normal operation of the earthing cable and the safety of the tower crane.
Description
Technical field
The utility model relates to a kind of draw off gear of large-scale open-air mobile plant lightning grounding cable, particularly discloses a kind of automatic tower crane cable draw-in and draw-off device.
Background technology
At present because effective forced stroke of large-scale open-air mobile plant is very long, the forced stroke that 50～100m is arranged, domestic equipment method commonly used is exactly the direct ground connection of cable, cable is by operating personal or there is the special messenger to safeguard in the equipment work process, each equipment work change in location, all will put and be beneficial to equipment work to correct position and be unlikely to cable again and rolled damage by equipment by manually dragging cable, quite trouble be safeguarded in work, influences work efficiency.
Summary of the invention
The purpose of this utility model is to overcome trouble, the hard work situation of artificial folding and unfolding earth cable in the prior art, discloses a kind of automatic tower crane cable draw-in and draw-off device.
The utility model is achieved in that a kind of automatic tower crane cable draw-in and draw-off device, comprise the cable pedestal, cable reel, it is characterized in that: also comprise driving wheel, flower wheel and chain, described driving wheel is by being mechanically anchored on the equipment mechanism main shaft, flower wheel is fixed on the cable pedestal, cable reel is set on the follower shaft simultaneously, chain is set as Transmission between driving wheel and flower wheel, the transmission speed ratio of driving wheel and flower wheel satisfies the requirement of equipment mechanism forced stroke and cable reel retractable cable equal in length.
Described flower wheel and cable reel be relative fixed on same axle, and flower wheel and cable reel rotate with speed.
Described cable reel is arranged on the follower shaft, on the inboard axis hole face of its cable reel and between follower shaft disk spring is set, is equipped with ball bearing of main shaft between cable reel outside axis hole and follower shaft.
The beneficial effects of the utility model are: earth cable is followed unwrapping wire, take-up automatically with the tower crane working condition, has removed heavy manual labor, has ensured the safety of earth cable normal operation and tower crane equipment again.
Description of drawings
Fig. 1 is the utility model apparatus structure planar view;
Fig. 2 is the three-dimensional generalized section of Fig. 1.
Among the figure: 1, equipment mechanism main shaft; 2, driving wheel; 3, chain; 4, flower wheel; 5, cable pedestal; 6, disk spring; 7, cable reel.
The specific embodiment
According to Fig. 1, Fig. 2, driving wheel 2 is by being mechanically anchored on the equipment mechanism main shaft 1, and cable pedestal 5 is by being bolted on the apparatus body.Flower wheel 4, disk spring 6 and cable reel 7 are installed on the cable pedestal 5 by linkage structure, and driving wheel 2 and flower wheel 4 carry out transmission by chain 3.
During equipment work, driving wheel 2 is done rotation by equipment mechanism main shaft 1 prime power, drives flower wheel 4 by chain 3 and rotates, and the rotation of flower wheel 4 has also driven cable reel 7 by the rotation of ball bearing of main shaft on cable pedestal 5.Thereby reached the purpose of twisted and released of the cable.When cable moved a dead center position, along with equipment works on, pulling force strengthened; power is during greater than the tension force of disk spring 6, and this moment, disk spring 6 shrank, and drove cable reel 7 whole idle running; continue to discharge the cable of reserving, play a soft contact of elasticity, protected earth cable not to be damaged.
Claims (3)
1. automatic tower crane cable draw-in and draw-off device, comprise the cable pedestal, cable reel, it is characterized in that: also comprise driving wheel, flower wheel and chain, described driving wheel is by being mechanically anchored on the equipment mechanism main shaft, and flower wheel is fixed on the cable pedestal, and cable reel is set on the follower shaft simultaneously, chain is set as Transmission between driving wheel and flower wheel, the transmission speed ratio of driving wheel and flower wheel satisfies the requirement of equipment mechanism forced stroke and cable reel retractable cable equal in length.
2. automatic tower crane cable draw-in and draw-off device according to claim 1 is characterized in that: described flower wheel and cable reel be relative fixed on same axle, and flower wheel and cable reel rotate with speed.
3. automatic tower crane cable draw-in and draw-off device according to claim 1 and 2, it is characterized in that: described cable reel is arranged on the follower shaft, on the inboard axis hole face of its cable reel and between follower shaft disk spring is set, be equipped with ball bearing of main shaft between cable reel outside axis hole and follower shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201440292U CN201027128Y (en) | 2007-06-08 | 2007-06-08 | Automatically narrowing or widening device of tower hanged grounding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201440292U CN201027128Y (en) | 2007-06-08 | 2007-06-08 | Automatically narrowing or widening device of tower hanged grounding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027128Y true CN201027128Y (en) | 2008-02-27 |
Family
ID=39131330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201440292U Expired - Lifetime CN201027128Y (en) | 2007-06-08 | 2007-06-08 | Automatically narrowing or widening device of tower hanged grounding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027128Y (en) |
-
2007
- 2007-06-08 CN CNU2007201440292U patent/CN201027128Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |