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Torque control hydraulic system based on push-pull speed of power head

A hydraulic system and torque control technology, applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., can solve the problems of easy fatigue of operators, high quality of operators, low construction efficiency, etc., and reduce the difficulty of equipment operation Effect

Active Publication Date: 2020-11-24
XUZHOU XUGONG FOUND CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty of its operation lies in the frequent adjustment of the push-pull handle to ensure that the rotation of the power head is not blocked when the operator operates the machine due to the frequent changes in the torque load of the power head during the construction of complex strata, which makes the operation difficult and requires The quality of the operators is high
At the same time, operators are prone to fatigue, resulting in low construction efficiency

Method used

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  • Torque control hydraulic system based on push-pull speed of power head
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Embodiment Construction

[0016] like Figure 1 to Figure 2 The shown torque control hydraulic system based on the push-pull speed of the power head includes the power head rotation hydraulic system, the power head push-pull hydraulic system, the pilot hydraulic system and the torque control valve group. The torque control valve group includes a pressure reducing valve 14, a shuttle Valve 15, reversing valve 16, sequence valve 17, throttle valve 18, one inlet oil of the torque control valve group communicates with the oil inlet of the power head rotary hydraulic system, and the other inlet oil of the torque control valve group The port is connected with the oil inlet of the pilot hydraulic system, and the two oil outlets of the push-pull handle 8 in the pilot hydraulic system are connected with the two ends of the shuttle valve 15. The power head rotary hydraulic system includes a rotary pump 3, a rotary valve 5, a rotary motor 6 and a rotary pressure gauge 4, and the power head push-pull hydraulic sys...

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PUM

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Abstract

A torque control hydraulic system based on the push-pull speed of a power head includes a power head rotary hydraulic system, a power head push-pull hydraulic system, a pilot hydraulic system and a torque control valve group. The torque control valve group includes a pressure reducing valve, a shuttle valve, a reversing valve, a sequence valve and a throttle valve. One oil inlet of the torque control valve group communicates with an oil inlet of the power head rotary hydraulic system, and the other oil inlet of the torque control valve group communicates with an oil inlet of the pilot hydraulic system. Two oil outlets of a push-pull handle in the pilot hydraulic system are connected with the two ends of the shuttle valve. The torque control hydraulic system based on the push-pull speed ofthe power head of the invention reversely controls the push-pull speed through the torque change of the hydraulic system, so that the push-pull speed of the power head is automatically adjusted in real time according to changes in the formation to maintain a constant output torque of the power head, the constant torque drilling function of the power head is achieved, and the difficulty of equipment operation is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of hydraulic control systems, in particular to a torque control hydraulic system based on the push-pull speed of a power head. Background technique [0002] In the current horizontal directional drilling rig, the power head rotation device and the push-pull device are driven by the hydraulic system, and the power head rotation and push-pull are compound actions during normal drilling. The difficulty of its operation lies in the frequent adjustment of the push-pull handle to ensure that the rotation of the power head is not blocked when the operator operates the machine due to the frequent changes in the torque load of the power head during the construction of complex strata, which makes the operation difficult and requires The quality of the operators is high. At the same time, operators are prone to fatigue, resulting in low construction efficiency. Contents of the invention [0003] The technical probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/028F15B11/17F15B13/06
CPCF15B11/028F15B11/17F15B13/06
Inventor 王鹏张永华马滔李书亚秦长剑
Owner XUZHOU XUGONG FOUND CONSTR MACHINERY