Electro-hydraulic main valve integrated with speed regulation function
A speed regulating valve, electro-hydraulic technology, applied in servo motor components, mining equipment, pillars/supports, etc., can solve the problems of low adjustment accuracy of the electro-hydraulic main valve, difficult to accurately control the adjustment position, affecting the normal progress of production, etc. To achieve the effect of simple structure, meeting work requirements and precise adjustment
Pending Publication Date: 2022-03-11
郑州恒达智控科技股份有限公司
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Problems solved by technology
The adjustment accuracy of the electro-hydraulic main valve of the existing hydraulic support is not high. When adjusting the action of the support (such as pushing and pulling the frame), it is difficult to accurately control the adjustment position, and there is a large error. It often needs repeated adjustments many times to reach the preset position. , time-consuming and labor-intensive, affecting the normal production
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[0014] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific working processes are provided, but the protection scope of the present invention is not limited to the following Described embodiment.
[0015] Such as figure 1 , 2 As shown, the electro-hydraulic main valve with integrated speed regulation function according to the present invention includes a valve body 1, on which a main liquid inlet channel 2 is arranged, with a horizontally arranged inlet port P and a longitudinally arranged outlet port; the valve body 1 A speed regulating valve sleeve 3 is also installed inside, which is coaxially arranged with the inlet end of the main liquid inlet channel 2, and is fixed by a screw sleeve 4; the inlet end of the above speed regulating valve sleeve 3 is connected with...
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The invention discloses an electro-hydraulic main valve integrated with a speed regulation function, which comprises a valve body provided with a main liquid inlet channel; the speed regulating valve sleeve is arranged in the valve body, the inlet end of the speed regulating valve sleeve is communicated with the inlet end of the main liquid inlet channel, the middle part of the speed regulating valve sleeve is communicated with the outlet end of the main liquid inlet channel, and the tail part of the speed regulating valve sleeve is provided with a screw sleeve; the speed regulating valve element is arranged in an inner cavity of the speed regulating valve sleeve, a throttling hole is formed in the head of the speed regulating valve element, and the speed regulating valve element is provided with a first position for communicating the inlet end and the outlet end of the main liquid inlet channel and a second position for blocking the inlet end and the outlet end of the main liquid inlet channel and communicating the inlet end and the outlet end of the main liquid inlet channel through the throttling hole; and the electric control valve is used for enabling the speed regulating valve core to reach the second position from the first position. According to the invention, the speed and accuracy of bracket position adjustment are effectively improved, and the working requirements of the hydraulic bracket are met.
Description
technical field [0001] The invention relates to the technical field of an electro-hydraulic main valve for a hydraulic support, in particular to an electro-hydraulic main valve with an integrated speed regulating function. Background technique [0002] With the standardization of underground management in coal mines, the requirements for the posture and consistency of hydraulic supports during work are getting higher and higher. The adjustment accuracy of the electro-hydraulic main valve of the existing hydraulic support is not high. When adjusting the action of the support (such as pushing and pulling the frame), it is difficult to accurately control the adjustment position, and there is a large error. It often needs repeated adjustments many times to reach the preset position. , Time-consuming and labor-intensive, affecting the normal production. Contents of the invention [0003] In order to solve the above problems, the present invention provides an electro-hydraulic ...
Claims
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IPC IPC(8): E21D15/44E21D15/50E21D15/51F15B13/02
CPCE21D15/44E21D15/512E21D15/50F15B13/02
Inventor 穆健勇吕善超王创举张传雷石潘李闯孙秀军王瑞
Owner 郑州恒达智控科技股份有限公司