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Radial piston used in hydraulic motor

A technology of hydraulic motor and radial column is applied in the fields of hydraulic piston pump motor accessories and radial piston for hydraulic motor, which can solve the problems of early wear and stuck of the piston, and achieve the effect of not losing volumetric efficiency.

Inactive Publication Date: 2012-10-31
无锡市汉力士液压泵制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original design structure of the radial plunger for the hydraulic motor was made by German Rexroth company. In actual work, after long-term use of the radial plunger hydraulic motor, the force on the side of the plunger is very easy to cause early wear and sticking. The plunger Construction needs improvement

Method used

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  • Radial piston used in hydraulic motor
  • Radial piston used in hydraulic motor
  • Radial piston used in hydraulic motor

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Embodiment Construction

[0011] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0012] Such as Figure 1-3 As shown, the radial plunger for the hydraulic motor of the present invention has a plurality of lubricating holes 2 on the stressed friction surface of the radial plunger 1, and each lubricating hole 2 is connected to the high-pressure chamber 5, especially at the center The radial plunger 1 at the bottom of the roller 3 is provided with a lubricating hole 2 leading into the high-pressure chamber 5 . The invention introduces lubricating oil into the hole, and performs low-pressure lubrication through long hole throttling.

[0013] In this embodiment, in order to ensure the volumetric efficiency during the working process of the hydraulic pump assembly, a lubricating groove is opened in the middle of the radial plunger supported by the rollers, which can also enhance the lubrication of the rollers.

[0014] When the inner curve r...

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Abstract

The invention discloses a radial piston used in a hydraulic motor. The radial piston is characterized in that a plurality of lubricating holes (2) are provided on a stressed friction surface of the radial piston (1). According to the invention, the structure of a traditional piston is adjusted. The lubricating holes communicating with a high pressure cavity are arranged at the stressed friction surface of the radial piston which is vulnerable to severe abrasion. Through long-hole throttling, high pressure oil is delivered to lubricating points. Therefore, the lubrication of stressed radial piston stressed friction surface is improved, and the lubrication on a central roller is more sufficient.

Description

technical field [0001] The invention relates to a motor accessory of a hydraulic plunger pump, in particular to a radial plunger for a hydraulic motor, which is mainly used in the field of radial plunger motors or pumps. Background technique [0002] What the technology of the present invention mainly uses is machining technology. The original design structure of the radial plunger for the hydraulic motor was made by German Rexroth company. In actual work, after long-term use of the radial plunger hydraulic motor, the force on the side of the plunger is very easy to cause early wear and sticking. The plunger Construction is in dire need of improvement. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a radial plunger for a hydraulic motor. Under the premise that the radial plunger ensures that the volumetric efficiency loss of the hydraulic plunger pump is small, an auxiliary lubricating hole is ad...

Claims

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Application Information

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IPC IPC(8): F03C1/247F03C1/28
Inventor 石景林孙晓浩
Owner 无锡市汉力士液压泵制品有限公司
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