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Load test device and method for chain hoist

A technology of load test and chain hoist, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc. The effect of space utilization, high weight utilization and high work efficiency

Pending Publication Date: 2019-08-13
NUCLEON XINXIANG CRANE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The traditional test method for chain hoists is to equip 1.3 times the weight and 1.35 times the weight under the rated load of all tonnage hoists, and select the corresponding weights according to the tonnage to carry out the lifting test. This method has a wide variety of weights, low weight utilization, and low cost The investment is large, and the lifting process is cumbersome, the operation efficiency is low, and the risk factor is large

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  • Load test device and method for chain hoist
  • Load test device and method for chain hoist
  • Load test device and method for chain hoist

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Embodiment Construction

[0029] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] For the 0.5t, 1t, 2t chain hoist load test, the load required for the test is shown in the table below:

[0031] serial number Rated load 1.3 times load 1.35 times load 1 0.5t 0.65 t 0.675 t 2 1 t 1.3 t 1.35 t 3 2 t 2.6 t 2.7 t

[0032] It can be seen from the above table that the load test of 0.5t, 1t and 2t chain hoist needs to lift six weights of 0.65t, 0.675t, 1.3t, 1.35t, 2.6t and 2.7t to complete the load test.

[0033] Such as Figure 1-3 As shown, a chain hoist load test device includes a weight and a pit 9 for placing the weight. The inner wall of the pit 9 is provided with a protective ring 5. The protective ring can play a buffer role and reduce the weight from moving up and down. Sometimes it collides with the pit wall and causes damage to the pit wall.

[0034] The bottom of the pit 9 is pro...

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Abstract

The invention discloses a load test device for a chain hoist. The device comprises a weight and a pit for placing the weight, wherein the bottom of the pit is provided with a weight bottom support, the middle portion of the weight bottom support comprises an upwardly disposed positioning rod, and the middle portion of the weight is provided with a positioning hole adapted to the positioning rod. The invention also discloses a load test method specifically comprising the following steps of (1) load test of a 0.5t chain hoist; (2) load test of a 1t chain hoist; and (3) load test of a 2t chain hoist. In the load test provided by the invention, the load test of 0.5t, 1t and 2t chain hoists can be realized by switching different hanging points, the weight utilization rate is high, the operationis simple and the work efficiency is high. By arranging the test weight in the pit, the safety factor is greatly improved.

Description

technical field [0001] The invention relates to the field of hoisting machinery load test equipment and test technology, in particular to a chain hoist load test device and a load test method. Background technique [0002] Electric hoists are generally installed on single-girder cranes, bridge cranes, gantry cranes, and suspension cranes. It is mainly composed of a reducer, a lifting motor, a running motor, a fire breaker, a cable slide, a reel device, a hook device, a coupling, a flexible cable current introducer, etc., integrating power and braking force. Before the electric hoist is put into use, in order to prevent accidents, a load test must be carried out on the electric hoist. [0003] Chain hoist is a kind of light and small light lifting equipment commonly used in indoor operations. It is small in size, light in weight, advanced in structure and reliable in performance. The main process of chain hoist load test is as follows: [0004] 1. Lift the weight 1.3 times...

Claims

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Application Information

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IPC IPC(8): G01M13/027
CPCG01M13/027
Inventor 崔鹏金庆好李静宇董凯赵伟哲李伟刘会强
Owner NUCLEON XINXIANG CRANE
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