Electric hoist test power-enhanced weight system and using method thereof

Abstract

The invention relates to an electric hoist test power-enhanced weight system and a using method thereof. The electric hoist test power-enhanced weight system comprises a pit with an anchoring device arranged at the bottom, and the top of the anchoring device extends out of a ground anchor lifting hook; the bottom of a power enhancing device is provided with a lower lifting hook connected with theground anchor lifting hook, the top of the power enhancing device extends out of an upper lifting hook, the side edge extends out of a weight lifting hook, and the weight lifting hook is hung with a weight assembly; a steel wire rope in connection with the weight lifting hook sequentially penetrates through a plurality of pulleys to achieve power enhancement; during hoisting, the anchoring device,the power enhancing device and the weight assembly are all contained in the pit, the upper lifting hook is hooked and protruded out of the ground by the electric hoist lifting hook and moves along atest bed together with the electric hoist lifting hook, the ground anchor lifting hook is pulled up to move along the anchoring device by the lower lifting hook, and the weight assembly is pulled up to move synchronously by the weight lifting hook. According to the electric hoist test power-enhanced weight system and the using method thereof in the invention, the load of the weight during the testof the electric hoist is reduced, the operational test of the electric hoist is effectively realized, the weight type is simplified, the weight assembly is convenient and fast to assemble and disassemble, and the test speed and efficiency are greatly improved.

Description

technical field [0001] The invention relates to the technical field of hoisting equipment test devices, in particular to an electric hoist test booster weight system and a use method thereof. Background technique [0002] As a kind of lifting equipment, the electric hoist is installed on the crane and gantry crane. It is widely used in industrial and mining enterprises, buildings, warehouses, docks and other occasions where heavy objects need to be lifted or moved. It is an essential machine for improving labor efficiency and working conditions. . It is usually driven by its own electric motor, and its lifting capacity ranges from a few hundred kilograms to hundreds of tons. Because of its large lifting weight and high operating height, relevant tests must be carried out to ensure the safety and essential characteristics of the electric hoist. [0003] The test of the electric hoist mainly includes the rated load test, the dynamic load test under 1.1 times the rated load an...

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Problems solved by technology

[0009] (2) Heavy workload

[0010] There are many electric hoists with a rated tonnage of 16t, 32t, 50t, and 80t, and the total weight of the weight components required for the test is 20t to 100t. The handling and combination of weights during the test is very laborious; weights, two people are required to cooperate and use a crane to lift and carry

[0011] (3) The number of required weights is large, the specifications are large, and the total weight is large

[0012] The electric hoist has many rated tonnage levels, and the test involves many weight combinations, especially the electric hoist with a large tonnage such as a rated tonnage of 160t. The test uses a 200t weight assembly, and requires 20 10t weights, or 20t weights. 10 pieces; while electric hoists with small tonnages such as 0.125t class need 0.00005t, 0.001t and other small-sized weights to match in the 1.25 times static load test; weights with a large number and specifications are in storage, management, transportation, etc. It is very cumbersome and labor-intensive to import and export

[0013] (4) High requirements for test bench and test site

[0015] (5) Unable to run the test

These methods rely on the ground anchor device to pull the electric hoist hook down to verify its structural bearing capacity, but the tension points on the device are fixed, and it is impossible to carry out tests related to operation such as dynamic load, climbing, and speed.

[0017] (6) The cost of the test device is high

[0018] The existing test device involves a large number of weights, many specifications, and a large total weight, and the matching of the weights is time-consuming and laborious. The requirements for the test bench and test workshop are also high, which greatly increases the test cost.

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