High-precision hydraulic telescopic rod

A hydraulic telescopic rod, high-precision technology, applied in the hydraulic field, can solve the problems of not meeting the precision requirements, and achieve the effects of direct measurement, improved control precision, and accurate movement

Inactive Publication Date: 2017-05-17
江苏金宏泰机电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the stroke of the piston rod is usually controlled by controlling the volume of pressure oil that is pressed into or out of the cylinder. Usually, the accuracy requirements can be met, but in some special cases, this method of indirectly obtaining the stroke of the piston rod cannot Meet the precision requirements

Method used

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  • High-precision hydraulic telescopic rod

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Embodiment Construction

[0011] A high-precision hydraulic telescopic rod, including an oil cylinder, a hydraulic control valve group, and an oil pump motor 1. The oil cylinder includes a cylinder barrel 2.1 and a piston rod 2.2 located in the cylinder barrel. A sensor is provided on the outer wall of the end of the cylinder barrel far away from the piston rod. Support 4, the sensor bracket is provided with a laser ranging sensor 5, the piston rod is provided with a reflector 3 on the outer wall of one end away from the cylinder, and the side opposite to the laser ranging sensor is provided with a launch surface; The hydraulic telescopic rod is also provided with a controller and an alarm device, and the alarm device, the oil pump motor and the laser ranging sensor are connected to the controller; When the stroke difference of the piston rod measured by the distance measuring sensor is greater than the set threshold value, the alarm device is activated to alarm. The controller is a PLC controller. Th...

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Abstract

The invention discloses a high-precision hydraulic telescopic rod which comprises an oil cylinder, a hydraulic control valve box and an oil pump motor. The oil cylinder comprises a cylinder barrel and a piston rod located inside the cylinder barrel; a sensor support is arranged on the outer wall of the end, away from the piston rod, of the cylinder barrel and provided with a laser ranging sensor; a reflector is arranged on the outer wall of the end, away from the cylinder barrel, of the piston rod; an emitting surface is arranged on the face, opposite to the laser ranging sensor, of the reflector; the hydraulic telescopic rod is further provided with a controller and an alarm device; the alarm device, the oil pump motor and the laser ranging sensor are connected with the controller; and the controller is used for controlling, when the difference between the piston rod stroke obtained by calculating the amount of motion of the oil pump motor and the piston rod stroke measured by the laser ranging sensor is larger than the set threshold value, the alarm device gives an alarm. The hydraulic telescopic rod can more directly measure the stroke of the piston rod, precision is high, and when an error is large, an alarm can be given automatically.

Description

technical field [0001] The invention relates to the hydraulic field, in particular to a high-precision hydraulic telescopic rod. Background technique [0002] Push rods are commonly used components in engineering, such as construction machinery and other fields. Commonly used push rods include electric push rods and hydraulic telescopic rods. Among them, hydraulic telescopic rods are widely used for their large thrust, long stroke, and stable movement. In the prior art, the stroke of the piston rod is usually controlled by controlling the volume of pressure oil that is pressed into or out of the cylinder. Usually, the accuracy requirements can be met, but in some special cases, this method of indirectly obtaining the stroke of the piston rod cannot Meet the precision requirements. Contents of the invention [0003] Purpose of the invention: The present invention aims to overcome the defects of the prior art and provide a high-precision hydraulic telescopic rod. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/20
Inventor 王震
Owner 江苏金宏泰机电科技有限公司
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