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High-frequency load-bearing hydraulic cylinder

A hydraulic cylinder and high-frequency technology, applied in the field of hydraulic cylinders, can solve problems such as limited service life, achieve long service life, avoid rigid impact, and reduce rebound force

Pending Publication Date: 2019-04-19
CSIC ZHONGNAN EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High-frequency impact products such as hydraulic rock drills need to be tested and verified for impact performance, but even if hard objects such as steel plates, rocks, and cement piers are used as loaded parts, the service life is extremely limited; can an effective high-frequency load be developed? It is very necessary for the test device to meet the test requirements of high-frequency impact products and ensure a high service life

Method used

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  • High-frequency load-bearing hydraulic cylinder
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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] This embodiment provides a high-frequency loaded hydraulic cylinder, see the attached Figure 1-3 , including: plug 1, impacted body 2, inflation valve 3, piston rod 4, gas piston 6, cylinder body 7, piston 9, check valve 11, check valve seat 12, buffer body 14, cylinder bottom 15 and Oil-filled screw plug 16;

[0027] The cylinder body 7 is a cylindrical body with openings at both ends, and the cylinder body 7 is processed with an oil and gas port 13 communicating with its inner cavity, and a plug 1 is installed on the oil and gas port 13 to close the oil and gas port 13;

[0028] The cylinder bottom 15 is fixed on one end of the cylinder body 7 by screws, and the end opening of the cylinder body 7 is closed, and the cylinder bottom 15 is processed with an oil port 17 communicating with the cylinder body 7 inner cavity, and the oil port 17 is inst...

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Abstract

The invention discloses a high-frequency load-bearing hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. The hydraulic cylinder comprises a plug, an impact bearing body, aninflation valve, a piston rod, a gas piston, a cylinder body, a piston, a one-way valve, a cylinder bottom and an oil filling screw plug; the cylinder bottom is fixed at one end of the cylinder bodyto close the opening in the end of the cylinder body; the piston rod is in hole shaft fit with the other end of the cylinder body, a closing end of the piston rod is provided with the impact bearing body and the inflation valve, and the gas piston is coaxially arranged in an inner cavity of the piston rod; the piston is coaxially arranged at an opening end of the piston rod, and an axial through hole of the piston communicates with the inner cavity of the piston rod; the one-way valve is arranged in a one-way valve installing hole of the piston, when the one-way valve is in the closed state, oil passing holes are closed, and when the one-way valve is in the open state, hydraulic oil can enter a rod cavity from a rodless cavity through the oil passing holes. The hydraulic cylinder is suitable for testing working conditions of high-frequency impact products, is convenient to manufacture and install, easy to use and maintain, good in shock absorption and impact resistance effects and longin service life.

Description

technical field [0001] The invention belongs to the technical field of hydraulic cylinders, in particular to a high-frequency loaded hydraulic cylinder. Background technique [0002] High-frequency impact products such as hydraulic rock drills need to be tested and verified for impact performance, but even if hard objects such as steel plates, rocks, and cement piers are used as loaded parts, the service life is extremely limited; can an effective high-frequency load be developed? It is very necessary for the test device to meet the test requirements of high-frequency impact products and ensure a high service life. Contents of the invention [0003] In view of this, the present invention provides a high-frequency loaded hydraulic cylinder, which is suitable for the testing conditions of high-frequency impact products, and is convenient to manufacture and install, easy to use and maintain, good in shock absorption and impact resistance, and long in service life. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B13/02
CPCF15B13/027F15B15/1423F15B15/1428F15B15/1447F15B15/1457
Inventor 杜浩斌陈洁张昌华李杰扶跃华唐瑞陈昊
Owner CSIC ZHONGNAN EQUIP
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