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Lifting apparatus detection device and lifting apparatus possessing same

A detection device and equipment detection technology, applied in the direction of using electric/magnetic devices to transmit sensing components, electric controllers, etc., can solve problems such as potential safety hazards, locking devices that cannot fundamentally achieve load stop, etc., to ensure use safe effect

Inactive Publication Date: 2008-05-28
QINGDAO JINHUA IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that in the existing lifting device, the locking device adopted in order to prevent the load from falling due to the sudden breakage of the steel wire rope and the chain cannot fundamentally realize the load stop, so that the device has potential safety hazards Defects, a wire rope and chain break detection device is proposed, which has a simple structure. After the detection device detects a sudden break of the wire rope or chain, the circuit in the device is cut off through the control circuit, and the load is stopped fundamentally. , to ensure the safe use of lifting devices and hoisting devices

Method used

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  • Lifting apparatus detection device and lifting apparatus possessing same
  • Lifting apparatus detection device and lifting apparatus possessing same
  • Lifting apparatus detection device and lifting apparatus possessing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The lifting equipment in the present embodiment is a lift, and the fracture detection device of the wire rope and the chain is set in the lift such as image 3 As shown, the lift is a two-column lift, and detection devices are installed on the upper and lower sides of the two columns 1. The device is a chain break detection device. Wherein the detection device is made up of push block 5, spring 6 and travel switch 7, wherein, in chain fracture detection device, such as Figure 4 As shown, one end of the push block 5 is provided with a boss, and the boss is adjacent to the travel switch 7, but there is no contact, and the other end is connected with the chain 3, and its cross-sectional shape is "L"; the spring 6 is sleeved on the push block 5, One end thereof is fixed on the column, and the other end is arranged on the boss of the push block 5 . In the wire rope break detection device, such as Figure 5 As shown, the cross-sectional shape of the push block 5 is "I" ty...

Embodiment 2

[0023] In the detection device, in addition to the spring, other elastic elements that can play the same role can also be used.

[0024] Others are the same as embodiment 1.

Embodiment 3

[0026] In addition to being used for the detection of the breakage of the steel wire rope and chain of the lift, the detection device can also be used for the detection of the breakage of the steel wire rope or chain of other lifting equipment for lifting.

[0027] Others are the same as embodiment 1.

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Abstract

The invention relates to a detecting apparatus of a lifting apparatus and a lifting apparatus with the detecting apparatus, in particular to a hoisting cable and a chain fracture detecting apparatus which is used in a lifting apparatus and a lifting apparatus with the detection. A lifting apparatus of the invention comprises a hoisting cable, a chain, an upright post, a detecting apparatus, and a control circuit, the detecting apparatus is connected with the hoisting cable, the chain and the control circuit, the detecting apparatus comprises a hoisting cable fracture detecting apparatus and a chain fracture detecting apparatus, the hoisting cable fracture detecting apparatus which is arranged on the upper portion of the upright post is connected with the hoisting cable, and the chain fracture detecting apparatus which is arranged on the lower portion of the upright post is connected with the chain. A lifting apparatus is provided with a hoisting cable and a chain fracture detecting apparatus, when a hoisting cable or a chain is split, an overtravel-limit switch is closed after the detecting apparatus detects a fracture, an electric signal is transmitted to the control circuit through the ouvertravel-limit switch, a whole circuit of the device is stopped, a dropping of a load is fundamentally stopped, and a safe use for the whole circuit is guaranteed.

Description

technical field [0001] The invention relates to a detection device, in particular to a wire rope and chain fracture detection device used in lifting equipment and the lifting equipment with the detection. Background technique [0002] At present, chains and wire ropes are usually used in lifting equipment to realize the rise or fall of objects. Take the lift as an example, such as figure 1 As shown, chains are usually used to lift and lower loads. In the figure, 1 is a column, 2 is a chain wheel, 3 is a chain, 4 is a sliding table, 5 is an oil cylinder, 6 is a running board for a car, the chain wheel 2 is set on the head of the piston 7 in the oil cylinder 5, and the piston 7 rises to drive the chain The wheel 2 rises, and since one end of the chain 3 is fixed on the column 1, the chain 3 drives the sliding table 4 to rise, and since the running board 6 is fixed on the sliding table 4, the rising of the sliding table 4 drives the running board 6 to rise. The rise of the lo...

Claims

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Application Information

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IPC IPC(8): G01D5/12G05B11/01
Inventor 金磊韩春芳王刚迟维祥
Owner QINGDAO JINHUA IND GRP