Heavy-load testing device
A test device, a technique of large loads used in the direction of testing the strength of materials by applying stable tension/compression
Inactive Publication Date: 2017-05-10
SOUTH CHINA MARINE MACHINERY
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Problems solved by technology
For cranes less than 50T, the test can be carried out by directly lifting heavy objects, but for large cranes, the load of hundreds of tons or thousands of tons cannot be tested by lifting heavy objects during acceptance. Therefore need a kind of device that can carry out tensile test to large crane tackle device
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[0013] Below in conjunction with accompanying drawing example the present invention is described in further detail:
[0014] Such as Figure 1 to Figure 3 The shown large load test device includes a base 1, the base 1 is connected to the crossbeam 3 through four uprights 2, and the top of the crossbeam 3 is provided with a guide pulley 4 and a rope pulley block 5 with a steel wire rope 11. The rope winding of this embodiment The pulley block 5 has five pulleys, which can be connected with the pulley device 8 with four pulleys to carry out the tensile test; there are two guide pulleys 4, and the two guide pulleys 4 are respectively installed on the crossbeam 3 located on both sides of the rope winding pulley block 5, and the crossbeam 3 Lifting lugs 12 are welded at the bottom, and the lifting lugs 12 can be used for the pulley type test of the pulley device of the crane below 50T; on the base 1 below the rope pulley block 5, a connecting rod 7 is hinged through a hinge seat, a...
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The invention discloses a heavy-load testing device and relates to the technical field of manufacturing of large-size crane testing devices. The heavy-load testing device comprises a base, wherein the base is connected with a transverse beam through a stand column; a guide pulley wheel and a winding rope pulley wheel group with a steel wire rope are arranged at the top of the transverse beam; a connecting rod is hinged onto the base below the winding rope pulley wheel group; a pin shaft penetrates through a through hole, formed in a front end, of the connecting rod; the base is fixedly provided with a fixed connecting end which is connected with one end of the steel wire rope and is hinged to a loading oil cylinder; and a movable connecting end connected with the other end of the steel wire rope is arranged at a part, located at a piston rod end, of the loading oil cylinder. Compared with the prior art, the heavy-load testing device disclosed by the invention can cover a tensile test of a crane tackle device with the capacity of 2000T or below; and the requirements on tackle tensile tests of large-size cranes at home and abroad at present are met.
Description
technical field [0001] The invention relates to the technical field of manufacturing large-scale crane test devices, in particular to a device for pulling a pulley device of a large-scale crane to perform a tensile test. Background technique [0002] According to the regulations of classification societies or relevant quality supervision departments, for cranes used in industries such as ships and marine engineering equipment, the pulley device is a movable part and needs to be tested for carrying capacity. For cranes less than 50T, the test can be carried out by directly lifting heavy objects, but for large cranes, the load of hundreds of tons or thousands of tons cannot be tested by lifting heavy objects during acceptance. Therefore need a kind of device that can carry out tensile test to large-scale crane tackle device. Contents of the invention [0003] The problem to be solved by the present invention is to provide a large load test device capable of carrying out a t...
Claims
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IPC IPC(8): G01N3/08
CPCG01N3/08
Inventor 彭克俊陈懿王江梁兆环陈世业
Owner SOUTH CHINA MARINE MACHINERY