CN203199904U - Crane with safety anti-drop device - Google Patents
Crane with safety anti-drop device Download PDFInfo
- Publication number
- CN203199904U CN203199904U CN2013201891396U CN201320189139U CN203199904U CN 203199904 U CN203199904 U CN 203199904U CN 2013201891396 U CN2013201891396 U CN 2013201891396U CN 201320189139 U CN201320189139 U CN 201320189139U CN 203199904 U CN203199904 U CN 203199904U
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- Prior art keywords
- reel
- group
- crane
- winding drum
- safety anti
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Abstract
The utility model relates to steel wire winding crane equipment, and in particular to a crane with a safety anti-drop device. The crane with the safety anti-drop device is composed of a brake, a winding drum, a fixed pulley group, a lifting hook group, a motor, a speed reducer and an electromagnetic clutch, and is characterized in that the brake is arranged at the tail end of the winding drum; a steel wire rope is wound on the winding drum; the steel wire rope is connected with the lifting hook group by virtue of the fixed pulley group; the motor is connected with the winding drum by virtue of the speed reducer; the electromagnetic clutch is arranged between the motor and the speed reducer; rotational speed and torque sensors are arranged in the winding drum and the lifting hook group.
Description
Technical field
This patent relates to steel wire coil around weight-lifting equipment, is specially a kind of hoisting crane with safety anti-falling device.
Background technology
The safety of existing silk coiling hoisting crane arranges generally regulates by manual control and speed restriction.The defective of manual shift is often can not in time tackle to cause major accident.The shortcoming that speed restriction is regulated is that normal running also might trigger brake operating.
Summary of the invention
The purpose of this patent is to provide a kind of hoisting crane with safety anti-falling device to realize the precise and safety protection over against above technical matters.
The concrete technical scheme of this patent is as follows: with the hoisting crane of safety anti-falling device, formed by drg, reel, fixed pulley group, suspension hook group, electrical motor, retarder, magnetic clutch, drg is arranged at the reel end, Wound steel rope on the reel, steel rope is by fixed pulley group connecting shackle group, electrical motor connects reel by retarder, between electrical motor and the retarder magnetic clutch is set, and torque and speed sensors is arranged in reel and the suspension hook group.
Torque and speed sensors monitoring crane hoisting mechanism working process, when the lifting mechanism hoisting heavy because mechanical breakdown generation stall situation and then adopt sure brake to brake control.Power-transfer clutch is closed during the lifting mechanism normal operation.The instruction of control system action produced brake action when sure brake was accepted the stall fault occurs, and reached the safe fall-proof effect.Torque and speed sensors detects the rotating speed of reel and the torque that weight produces, and detect the data input control system, and then the transmission instruction makes sure brake work; Detect electrical motor and drum speed, its ratio and retarder speed ratio value are contrasted, control system is judged and then is started sure brake.
It is accurate that the advantage of this patent is embodied in failure judgement, and brake command sends in time, the safety of energy Effective Raise equipment.
Description of drawings
Fig. 1 asks the structural representation of patent
Wherein, 1---drg, 2---reel, 3---fixed pulley group, 4---suspension hook group, 5---electrical motor, 6---retarder, 7---magnetic clutch, 8---steel rope.
The specific embodiment
Be described further below in conjunction with this this patent of specific embodiment.
The concrete technical scheme of this patent is as follows: with the hoisting crane of safety anti-falling device, formed by drg, reel, fixed pulley group, suspension hook group, electrical motor, retarder, magnetic clutch, drg is arranged at the reel end, Wound steel rope on the reel, steel rope is by fixed pulley group connecting shackle group, electrical motor connects reel by retarder, between electrical motor and the retarder magnetic clutch is set, and torque and speed sensors is arranged in reel and the suspension hook group.Torque and speed sensors monitoring crane hoisting mechanism working process, when the lifting mechanism hoisting heavy because mechanical breakdown generation stall situation and then adopt sure brake to brake control.Power-transfer clutch is closed during the lifting mechanism normal operation.
Claims (1)
1. with the hoisting crane of safety anti-falling device, formed by drg, reel, fixed pulley group, suspension hook group, electrical motor, retarder, magnetic clutch, it is characterized in that: drg is arranged at the reel end, Wound steel rope on the reel, steel rope is by fixed pulley group connecting shackle group, electrical motor connects reel by retarder, between electrical motor and the retarder magnetic clutch is set, and torque and speed sensors is arranged in reel and the suspension hook group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201891396U CN203199904U (en) | 2013-04-16 | 2013-04-16 | Crane with safety anti-drop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201891396U CN203199904U (en) | 2013-04-16 | 2013-04-16 | Crane with safety anti-drop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203199904U true CN203199904U (en) | 2013-09-18 |
Family
ID=49144034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201891396U Expired - Lifetime CN203199904U (en) | 2013-04-16 | 2013-04-16 | Crane with safety anti-drop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203199904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512808A (en) * | 2013-09-30 | 2015-04-15 | 上海共久电气有限公司 | Detection method of rising stall of elevating mechanism in crane |
-
2013
- 2013-04-16 CN CN2013201891396U patent/CN203199904U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512808A (en) * | 2013-09-30 | 2015-04-15 | 上海共久电气有限公司 | Detection method of rising stall of elevating mechanism in crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |