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Replicating position arrival hydraulic machine controlling device

A technology for control devices and implements, which is applied to fluid pressure actuation devices, hoisting devices, accumulator devices, etc., can solve the problems of difficult sealing, difficult to achieve repeated no-load placement, complicated disposal, etc., and achieve punctual and reliable sealing. Effect

Inactive Publication Date: 2003-12-17
胡宣哲
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The disclosed 991152379 "hydraulic jacking equipment automatic device" and 001133020 "automatic hydraulic jack" have the following disadvantages: the stored energy is difficult to achieve no-load repeated positioning; The one-way valve realizes the control, and its sealing is difficult; the automatic positioning of the oil cylinder, on the one hand, relies on the spring force to lift the piston in place, and quickly absorbs oil from the oil tank, and on the other hand, it relies on the accumulator to release energy, and the pressure drop of the piston reaches (recovery) position, quickly drain oil to the fuel tank, a large amount of oil enters and exits quickly from the fuel tank, and its breathing port is required to be particularly unblocked. When the machine is turned upside down, oil cannot escape from the breathing port, resulting in complicated disposal

Method used

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  • Replicating position arrival hydraulic machine controlling device
  • Replicating position arrival hydraulic machine controlling device
  • Replicating position arrival hydraulic machine controlling device

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Embodiment Construction

[0010] With reference to the accompanying drawings, one consists of an oil pump 1, an oil cylinder 2, a piston 3, a high-pressure stage accumulator 4, a low-pressure stage accumulator 5, and a two-position two-way oil return rotary valve 12, a double-control check valve 26, and a hydraulic control valve. The combined control device of the one-way valve 24 constitutes the full hydraulic implement of the present invention. The accumulator 4 communicates with the upper cavity of the oil cylinder 2 through the channel 14; the accumulator 5 communicates with the lower cavity of the oil cylinder 2 through the channel 17 and the one-way valve 16. In the oil return rotary valve 12 in the control device, the large diameter of the valve core is connected with the valve body through threads, and the small diameter is closely matched with the valve body. There is a hook-shaped groove 10 on the valve core cylinder, and the center is a through hole. Cooperate with a push rod 13. A spring 2...

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Abstract

A control unit of hydraulic press for making the pressing part reach the working position automatically is composed of a two-position two-way return oil valve, dual-control check valve and hydraulic one-way valve. It features that it cylinder has a lower cavity with a low-pressure energy accumulator and an upper cavity with a high-pressure energy accumulator, its operating handle is arranged in a tubular holder to which a power arm for driving oil pump is fixed, and a universal coupling is used to control said return oil valve.

Description

technical field [0001] The invention relates to a hydraulic implement control device for jacking loads. Background technique [0002] The disclosed 991152379 "hydraulic jacking equipment automatic device" and 001133020 "automatic hydraulic jack" have the following disadvantages: the stored energy is difficult to achieve no-load repeated positioning; The one-way valve realizes the control, and its sealing is difficult; the automatic positioning of the oil cylinder, on the one hand, relies on the spring force to lift the piston in place, and quickly absorbs oil from the oil tank, and on the other hand, it relies on the accumulator to release energy, and the pressure drop of the piston reaches (recovery) Position, quickly drain oil to the fuel tank, a large amount of oil quickly enters and exits from the fuel tank, and its breathing port is required to be particularly unblocked. When the machine is turned upside down, oil cannot escape from the breathing port, resulting in comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/28B66F3/42F15B1/02F15B21/14
CPCB66F3/42F15B1/024B66F3/28F15B21/14
Inventor 胡真华胡爱武胡宣哲
Owner 胡宣哲
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