A pressure testing device and method for lifting tools
A lifting tool and pressure testing technology, which is applied to the pressure testing device of lifting tools and the field of safety testing of lifting appliances, can solve the problems that cannot be tested according to lifting tools and lifting tools, etc., and achieve reasonable test results and convenient test operation Effect
Active Publication Date: 2017-09-19
CSSC MES DIESEL
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Problems solved by technology
[0011] The technical problem to be solved by the present invention is to overcome the fact that in the prior art, the pressure test of the lifting tool in all directions cannot be carried out according to the actual working conditions of the lifting tool, and the pressure test of the lifting tool can only be realized indirectly by performing a material tensile test in a single direction to provide a pressure testing device and method for lifting tools with simple operation, reasonable structure, and convenient operation, which can simulate the actual working conditions of lifting tools, and test the main force and secondary forces in different directions of each lifting tool Pressure testing and confirmation by force to meet the pressure testing needs of various lifting tools
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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention should not be limited thereby.
[0040] see figure 2 A schematic diagram of an embodiment of the present invention, which shows that the pressure test device for lifting tools includes a body 1, two rear guide rails 2, a front support 3, two test heads 4, a driver 5, a rear support 6, two lead screws 7, and a hydraulic cylinder 8 and control unit 9.
[0041] The body 1 is located at the front end of the pressure testing device, and is a rectangular frame structure, which is welded by a front end plate, a rear end plate and four H-shaped steels, and the four H-shaped steels connect the front end plate and the rear end plate. The front end plate is a working platform with a plurality of threaded holes, and the left and right sides of the rear end plate are each provided with a through ho...
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A pressure testing device for lifting tools, including a body, two rear guide rails, a front bracket, two test heads, a driver, a rear bracket, two lead screws, a hydraulic cylinder and a control unit; wherein, the body includes a front end plate and a rear end plate , the two rear guide rails are connected to the rear of the body, the front bracket is set in the body and can move back and forth along the bottom of the body, and the two test heads are respectively set on the front plate and the front bracket for installing lifting tools and simulating actual working conditions. The rear support is located at the rear of the body and can move forward and backward on the two rear guide rails. One end of the two lead screws is connected to the front support and the other end is connected to the rear support. The driver is connected to the two lead screws and drives the fixed front support, rear support and two wires. The bar moves quickly back and forth, one end of the hydraulic cylinder is fixed on the machine body, and the other end is fixed on the driver to load the lifting tool with test pressure, and the control unit controls the operation of the pressure test device. The invention has the advantages of simple and convenient operation, accurate testing, time-saving and labor-saving, and is used for testing various lifting tools of marine diesel engines.
Description
technical field [0001] The invention relates to a safety test of a lifting appliance, in particular to a pressure testing device and method for a lifting tool under complex working conditions, and belongs to the technical field of lifting. technical background [0002] The working conditions of the lifting operation are complicated, and it is necessary to manufacture different lifting devices according to the different states and positions of the lifting parts. The load of the lifting device is regulated, and the choice of lifting device for what load is also strictly limited. Especially for the loads of dynamic components that change at any time, there is no relatively stable test method to accurately measure the real situation of dynamic loads, that is, it cannot truly reflect the conditions during lifting, which not only leads to low lifting efficiency, but also There are security risks. [0003] The most common test method at present is to determine the lifting capacity...
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IPC IPC(8): G01M99/00
Inventor 王慈超费菲田贺
Owner CSSC MES DIESEL