Double-pump parallel hydraulic flow conversion device and roller drive system of rubber mixing machine

A technology of variable flow device and rubber mixing machine, which is applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc. It can solve problems such as difficulty in adapting to rubber mixing process requirements, lack of speed regulation technology, etc., and achieve responsiveness The effect of fast speed and large adjustment range

Active Publication Date: 2017-06-16
YIYANG XINHUAMEI MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are defects such as lack of speed regulation technology, and it is difficult to adapt to different rubber mixing process requirements.

Method used

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  • Double-pump parallel hydraulic flow conversion device and roller drive system of rubber mixing machine
  • Double-pump parallel hydraulic flow conversion device and roller drive system of rubber mixing machine
  • Double-pump parallel hydraulic flow conversion device and roller drive system of rubber mixing machine

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Experimental program
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Effect test

Embodiment Construction

[0032] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like figure 1 The shown dual-pump parallel hydraulic converter device includes a first hydraulic pump 1; a second hydraulic pump 2 connected in parallel with the first hydraulic pump 1; an oil inlet connected to the oil outlet of the first hydraulic pump 1 through an oil pipe The first check valve 3; the proportional speed regulating valve 4 connected with the oil outlet of the second hydraulic pump 2 through the oil pipe; the second check valve 5 whose oil inlet is connected with the oil outlet of the proportional speed regulating valve 4 through the oil pipe ;The control valve whose pressure oil port is connected with the oil outlet of the first check valve 3 and the second check valve 5 through the oil pipe; the actuator connected with the working oil port of the control valve through the oil pipe; the load device connected with the...

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PUM

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Abstract

Disclosed are a hydraulic variable-flow device with two parallel pumps and a rubber mixing mill roller driving system. The hydraulic variable-flow device with the two parallel pumps comprises a first hydraulic pump, a second hydraulic pump, a first one-way valve, a proportional flow control valve, a second one-way valve, a control valve, an actuating mechanism, loading equipment, a pressure control valve, a pressure sensor, a speed sensor, a controller, a variable-frequency governor of a first hydraulic pump driving motor and a control mechanism of a second hydraulic pump driving motor, wherein a pressure oil port of the control valve is connected with oil outlets of the first one-way valve and the second one-way valve, the actuating mechanism is connected with a working oil port of the control valve, the loading equipment is connected with the actuating mechanism, the pressure control valve is connected with an oil inlet pipeline of the pressure oil port of the control valve, the pressure sensor is used for detecting pressure of the oil inlet pipeline of the pressure oil port of the control valve, the speed sensor is used for detecting movement of the loading equipment, pressure signals detected by the pressure sensor and speed signals detected by the speed sensor are inputted to the controller, and the output end of the controller is electrically connected with the variable-frequency governor of the first hydraulic pump driving motor, the proportional flow control valve and the control mechanism of the second hydraulic pump driving motor.

Description

technical field [0001] The invention relates to the technical field of hydraulic control, in particular to a dual-pump parallel hydraulic variable flow device; the invention also relates to a drive system of a rubber mixing machine drum. Background technique [0002] In many fields of production equipment, speed control systems are widely used. The speed control system includes a DC speed control system and an AC variable frequency speed control system. At present, AC variable frequency speed regulation is more widely used than DC speed regulation. The main reason is that the AC motor has advantages, not the principle of variable frequency speed regulation. The armature and excitation of DC speed regulation are not coupled, but separated. This enables precise control of armature current and field current. In AC speed regulation, armature current and excitation current are coupled and cannot be precisely controlled. Although the current variable frequency speed regulation h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B9/14F15B21/08
CPCF15B9/14F15B21/08
Inventor 王先发徐秀丽王炎李硕
Owner YIYANG XINHUAMEI MECHANICAL & ELECTRICAL TECH
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