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Cylinder block with replaceable needle roller bearings

A technology of needle roller bearings and cylinders, which is applied in the field of cylinders with needle roller bearings, can solve problems such as damage to other accessories, deformation and lock damage, and small fit clearances, so as to improve service life, reduce maintenance costs, and replace easy effect

Inactive Publication Date: 2018-06-12
江苏汉力士液压制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in the high-speed operation of the oblique-axis bevel-tooth fixed-quantity plunger pump, the friction between the center hole of the cylinder body and the centering shaft is small due to the small fit clearance, which is prone to deformation, locking and damage due to temperature rise. At the same time, other accessories It is also damaged, and the efficiency is low if the fit clearance is too large

Method used

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  • Cylinder block with replaceable needle roller bearings

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 As shown, the cylinder with replaceable needle roller bearing according to the present invention includes a bevel gear cylinder 1, a bearing hole 2 is arranged in the middle of the bevel gear cylinder 1, and a bearing is arranged in the bearing hole 2 I3 and bearing II4, the distance between the outer surface of the bearing I3 and the end face of the bevel cylinder 1 on the same side of the outer surface and the length ratio of the bearing hole 2 is 1: (12-13), the bearing II4 The distance between the outer surface and the end face of the bevel gear cylinder 1 on the same side of the outer surface and the length ratio of the bearing hole 2 is 1: (16 / 25-18 / 25); the bearing I3 and bearing II4 are pressed into the bearing hole 2. Inner tight fit connection; said bearing I3 and bearing II4 are needle roller bearings. The structure ...

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Abstract

The invention relates to a cylinder block with replaceable needle roller bearings. The cylinder block comprises a beveled cylinder block body. A bearing hole is formed in the middle portion of the beveled cylinder block body. The bearing I and the bearing II are arranged in the bearing hole. The ratio of the distance between the outer surface of the bearing I and the end face, located on the sameside as the outer surface of the bearing I, of the beveled cylinder block body to the length of the bearing hole is 1:(12-13). The ratio of the distance between the outer surface of the bearing II andthe end face, located on the same side as the outer surface of the bearing II, of the beveled cylinder block body to the length of the bearing hole is 1:(16 / 25-18 / 25). The cylinder block is simple instructure and easy to replace.

Description

technical field [0001] The invention relates to a cylinder body, in particular to a cylinder body with a needle roller bearing. Background technique [0002] In the prior art, in the high-speed operation of the oblique-axis bevel-tooth fixed-quantity plunger pump, the friction between the center hole of the cylinder body and the centering shaft is small due to the small fit clearance, which is prone to deformation, locking and damage due to temperature rise. At the same time, other accessories It is also damaged, and the efficiency is low if the matching clearance is too large. Contents of the invention [0003] Purpose of the invention: The purpose of the invention is to overcome the deficiencies in the prior art and provide a cylinder block with replaceable needle roller bearings that is simple in structure and easy to replace. [0004] Technical solution: In order to solve the above technical problems, the cylinder with replaceable needle roller bearing according to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16
CPCF04B53/162
Inventor 王福红孙晓浩刘锋
Owner 江苏汉力士液压制造有限公司
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