Hydraulic jack testing device
A technology for hydraulic jacks and testing devices, which is applied to measuring devices, testing of machine/structural components, instruments, etc., can solve problems such as low degree of generalization, and achieve the effect of reducing work intensity, convenient use, and convenient manufacturing and installation.
Inactive Publication Date: 2012-12-19
CHANGSHU TONGRUN AUTO ACCESSORY
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Problems solved by technology
In addition, this kind of equipment has the exclusive characteristics for a certain type of product, so the degree of generalization is extremely low, and it is often designed and manufactured by the manufacturer of the hydraulic jack in the form of body-loading clothes.
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[0020] See figure 1 , a rectangular base 1 is given, on which a first limiting foot 11 and a second limiting foot 11 and a second limiting foot are fixed at the center of the base 1 and on the side of the base 1 facing upwards (facing upwards in use) The shape of the feet 12, the first and the second limiting feet 11, 12 are the same as each other. In this embodiment, the first and second limiting feet 11 and 12 are both L-shaped and form a back-to-back relationship with each other. Certainly, the shape of the first and second position-limiting feet 11,12 can also be in the shape of a torus. The base 72 of the measured hydraulic jack 7 ( figure 2 shown) to match the diameter. The self-evident function of the first and second limit feet 11 and 12 is to prevent the hydraulic jack from swimming during the test and ensure the correct position on the base 1 .
[0021] An upright column 13 with a cross-sectional shape preferably rectangular is fixed at the edge of the upw...
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A hydraulic jack testing device belongs to the technical field of lifting jack testing and comprises a base, a top crossbeam, an action cylinder, a pump core actuating mechanism and a reversing valve. The surface of one upwards side of the base is provided with a first limit leg, a second limit leg and a vertical column. The top crossbeam is fixed with the vertical column in a manner of a horizontal cantilever. The action cylinder is fixed on the top crossbeam longitudinally and arranged at a cantilever end of the top crossbeam, and an action cylinder column of the action cylinder penetrates through the top crossbeam and corresponds to the upper side between the first limit leg and the second limit leg. The pump core is used for actuating a pump core of a tested hydraulic jack, and the pump core actuating mechanism is connected with the action cylinder column and corresponds to the upper side of the first limit leg and the second limit leg. The reversing valve is arranged on the vertical column and is in control connection with the action cylinder. The hydraulic jack testing device has high practicality and high testing efficiency and can be convenient to manufacture, mount and use due to simple structure thereof, and working intensity of testing workers can be alleviated.
Description
technical field [0001] The invention belongs to the technical field of lifting equipment testing devices, and in particular relates to a hydraulic jack testing device. Background technique [0002] In order to ensure the quality of the hydraulic jack, the manufacturer needs to test the product before leaving the factory, and the test is a full test. The so-called full test is relative to the random test. Test without leaks, the purpose of the test is to check whether the working condition of the hydraulic components is normal, that is, to observe the full stroke of the piston rod under no-load conditions, for example, when the piston rod lifts weakly (cannot) and / or cannot be raised to When there is a situation such as the rising limit position, it indicates that there is leakage in the oil circuit of the hydraulic system, thereby preventing unqualified products from flowing into the market. [0003] At present, that is, before this patent application is filed, the testing ...
Claims
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IPC IPC(8): G01M99/00
Inventor 刘羽陈旦唐循申
Owner CHANGSHU TONGRUN AUTO ACCESSORY