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Over-travel protector for winding engine

A winch and over-travel technology, which is applied in the direction of hoisting devices and spring mechanisms, can solve problems such as unimaginable consequences, and achieve the effects of long service life, compact gear transmission structure, and small footprint

Inactive Publication Date: 2010-06-02
徐州海华电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the electronic components such as encoders, PLCs, and relays in the intelligent master control out of control fail, they cannot be predicted and controlled. The hoist continues to run, and the carrying device continues to run beyond the stroke. The consequences are unimaginable.

Method used

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  • Over-travel protector for winding engine
  • Over-travel protector for winding engine
  • Over-travel protector for winding engine

Examples

Experimental program
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Embodiment Construction

[0017] Such as figure 1 , 2 , Shown in 3, 4: a kind of overtravel protector for winch, it is characterized in that: this machine comprises: frame, leading screw 9, encoder 7, moving plate 12, travel switch I 8 and travel switch II 13; The frame includes base plate 1, bearing block I 3 and bearing block II 14; the bearing block I 3 and bearing block II 14 are vertically fixed on the base plate 1, and the lead screw 9 passes through the bearing 4 and the bearing cover 2 It is connected with the bearing seat I 3 and the bearing seat II 14, one end of the screw 9 is connected with the winch, and the other end of the screw 9 is connected with the encoder 7; the encoder 7 is installed on the bearing seat I 3 through the encoder bracket 5 The inner side of the bearing block I 3 and the lower part of the inner side of the bearing block II 14 are provided with a travel switch I 8 and a travel switch II 13; the moving plate 12 is connected with the lead screw 9 through a screw nut 11; ...

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PUM

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Abstract

The invention discloses an over-travel protector for a winding engine, comprising a frame and a screw rod which is installed on the frame and connected with the winding engine. One end of the screw rod is connected with a coder via mutually engaged gears I and II. Two travel switches are installed on the frame. A moveable plate is disposed between the two travel switches and is connected with the screw rod via a linear shaft. The moving distance of the moveable plate accurately reflects the moving position of a carrier dragged by the winding engine via the coder and a controller. The position of the travel switch can be regulated and is behind a travel locating point of the winding engine. When the controller is out of order, the winding engine continues running, the moveable plate moves to the travel switch, the travel switch contacts and sends to an external controller via leads, and then the controller stops the winding engine in order to efficiently prevent accident.

Description

technical field [0001] The invention relates to a hoist, in particular to a protector for automatically stopping the hoist when the hoist is over-traveled. Background technique [0002] The hoist is a power equipment used in metallurgy, mines, coal mines, docks and other places. The hoist drags the moving feeder, bucket, bucket and other carrying devices to move in both directions through the wire rope. The moving position of these carrying devices requires accurate positioning. Once the positioning position exceeds the preset position and cannot be stopped in time, serious accidents will occur. Currently used hoist, its stroke control positioning system is set in the intelligent master controller of the hoist, but no over-travel protection device is set in the intelligent master controller. Once the electronic components such as encoders, PLCs, and relays in the intelligent master control out of control fail, they cannot be predicted and controlled. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/56
Inventor 柳光
Owner 徐州海华电气有限公司
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