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A hydraulic pump device for a hydraulic jack and its control method

A hydraulic jack and hydraulic pump technology, applied in the hydraulic field, can solve the problems of abnormal fluctuation of oil pressure of the jack, mutual interference of oil pressure changes, etc., and achieve the effects of improving the smoothness of conveying, improving the efficiency, and improving the efficiency of liquid feeding.

Active Publication Date: 2017-10-31
江苏荣美液压设备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This hydraulic pump has the same problem as other types of hydraulic pumps in the prior art: when driving multiple jacks, the oil pressure changes of each hydraulic pipe will interfere with each other, resulting in abnormal fluctuations in the oil pressure in the jack

Method used

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  • A hydraulic pump device for a hydraulic jack and its control method
  • A hydraulic pump device for a hydraulic jack and its control method
  • A hydraulic pump device for a hydraulic jack and its control method

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Embodiment Construction

[0027] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, no longer described in detail here.

[0028] refer to Figure 1-7 , a specific embodiment of the present invention includes the first pump body 1, the second pump body 2 and the third pump body 3 arranged in series, the first pump body 1 is connected to the oil tank 4, and the third pump body 3 is connected with several hydraulic pipes 5. A first flow valve 6 is provided at the connection between the hydraulic pipe 5 and the third pump body 3, the hydraulic pipe 5 is connected to the first pump body 1 through a bypass pipe 7, and a second flow valve 8 is provided on the bypass pipe 7 , the first pump body 1 , the second pump body 2 , the third pu...

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Abstract

The invention discloses a hydraulic pump device for hydraulic jacks. The hydraulic pump device comprises a first pump body, a second pump body and a third pump body which are arranged in series; the first pump body is connected to an oil tank; the third pump body is connected with a plurality of hydraulic pipes; first flow valves are arranged on the joints of the hydraulic pipes and the third pump body; the hydraulic pipes are connected to the first pump body through bypass pipes which are provided with second flow valves; and the first pump body, the second pump body, the third pump body, the first flow valves and the second flow valves are all in communication with a controller. The invention further provides a control method of the hydraulic pump device for the hydraulic jacks. By means of the hydraulic pump device for the hydraulic jacks and the control method of the hydraulic pump device for the hydraulic jacks, the defects in the prior art can be overcome, and stability is improved when a hydraulic pump drives a plurality of jacks at the same time.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a hydraulic pump device for a hydraulic jack and a control method thereof. Background technique [0002] The hydraulic jack is a hydraulic pump driven by manpower or electricity, which is transmitted through a hydraulic system, and a cylinder or a piston is used as a jacking piece. The hydraulic pump is the power source of the hydraulic jack. Chinese utility model patent CN 202625731 U discloses a hydraulic pump for a combined jack. This hydraulic pump has the same problem as other types of hydraulic pumps in the prior art: when driving multiple jacks, the oil pressure changes in each hydraulic pipe will interfere with each other, resulting in abnormal fluctuations in the oil pressure in the jack. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hydraulic pump device for hydraulic jacks and its control method, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F3/42
Inventor 刘应才
Owner 江苏荣美液压设备制造有限公司
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