Hydraulic cylinder and production method thereof

A manufacturing method and technology of a hydraulic cylinder, applied in the field of hydraulic machinery, can solve the problems of high manufacturing cost, large cylinder oil cavity, thick piston rod, etc., and achieve the effects of reducing oil storage, reducing oil tank and reducing hydraulic pump flow.

Inactive Publication Date: 2008-09-24
贾广生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are obvious defects in the application of hydraulic mechanical equipment with small load and large stroke. The cylinder oil chamber is large and the piston rod is thick, which makes the oil tank, flow rate, hydraulic pump, motor and other configurations of the hydraulic system large, and the energy consumption is high. High manufacturing cost, which limits the application and development of low-load, large-stroke hydraulic mechanical equipment

Method used

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  • Hydraulic cylinder and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] To make a hydraulic cylinder with a stroke of 9 meters and a capacity of 5 tons:

[0013] 1. Make a hydraulic cylinder base with a diameter of 140mm and a thickness of 30mm;

[0014] Make a positioning tube with a length of 9000mm, 10mm behind the wall, an outer diameter of 60mm, and an inner diameter of 40mm. The area of ​​the outer diameter circle is 28.26 square centimeters, and the area of ​​the inner diameter circle is 12.56 square centimeters;

[0015] Manufacture a hydraulic cylinder cylinder with a length of 9000mm, a wall back of 10mm, an outer diameter of 110mm, and an inner diameter of 90mm, and its inner diameter circle area is 63.585 square centimeters;

[0016] Manufacture a hydraulic piston tube with a length of 9100mm, a wall back of 10mm, an outer diameter of 80mm, and an inner diameter of 60mm, with an outer diameter circle area of ​​50.24 square centimeters and an inner diameter circle area of ​​28.26 square centimeters;

[0017] Make a piston with a...

Embodiment 2

[0020] To make a hydraulic cylinder with a stroke of 9 meters and a capacity of 2 tons:

[0021] 1. Make a hydraulic cylinder base with a diameter of 130mm and a thickness of 30mm;

[0022] Make a positioning tube with a length of 9000mm, 10mm behind the wall, an outer diameter of 60mm, and an inner diameter of 40mm. The area of ​​the outer diameter circle is 28.26 square centimeters, and the area of ​​the inner diameter circle is 12.56 square centimeters;

[0023] Manufacture a hydraulic cylinder cylinder with a length of 9000mm, a wall back of 10mm, an outer diameter of 100mm, and an inner diameter of 80mm, and its inner diameter circle area is 50.24 square centimeters;

[0024] Manufacture a hydraulic piston tube with a length of 9100mm, a wall back of 6mm, an outer diameter of 72mm, and an inner diameter of 60mm. The outer diameter circle area is 40.69 square centimeters, and the inner diameter circle area is 28.26 square centimeters;

[0025] Make a piston with a diamete...

Embodiment 3

[0029] Make a hydraulic cylinder with a stroke of 3 meters and a load of 0.5 tons:

[0030] 1. Make a hydraulic cylinder base with a diameter of 100mm and a thickness of 30mm;

[0031] Make a positioning column with a length of 3000mm and a diameter of 30mm, and its bottom circle area is 7.06 square centimeters;

[0032] Manufacture a hydraulic cylinder cylinder with a length of 3000mm, a wall back of 10mm, an outer diameter of 90mm, and an inner diameter of 70mm, and its inner diameter circle area is 38.465 square centimeters;

[0033] Manufacture a hydraulic piston tube with a length of 3100mm, a wall back of 6mm, an outer diameter of 62mm, and an inner diameter of 50mm. The outer diameter circle area is 30.18 square centimeters, and the inner diameter circle area is 19.625 square centimeters;

[0034] Make a piston with a diameter of 70mm with a sealing ring inlaid with the hydraulic piston tube.

[0035] 2. Connect the positioning column 2 vertically and parallel to the ...

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Abstract

The invention relates to a hydraulic cylinder and a manufacturing method thereof, which belongs to the hydraulic mechanical technology field. A present hydraulic cylinder structure is changed. A hydraulic cylinder product comprises main parts of a cylinder tube, a piston tube, a positioning tube or positioning column, a base, a sealing part, etc. and the hydraulic cylinder is applied to the installation and the use of the hydraulic mechanical equipment with low load and large stroke. The pressure effective area required by the load is calculated and set through conditions of load, pressure, etc. The size of the positioning tube or the positioning column in the hydraulic cylinder body is designed. The hydraulic piston and the effective area of the end of the piston tube are matched with the pressure effective area required by the load operation. Thus, compared with a common hydraulic cylinder, the hydraulic cylinder has the advantages that the oil storing amount in the cylinder body is reduced, an oil tank which is matched with the hydraulic system is reduced, the flow of a hydraulic pump is reduced, the power configuration of a motor is reduced, the cost is lowered, the energy is saved and the application range of the hydraulic cylinder is improved. The hydraulic cylinder is provided with simple and energy saving performances when being applied to the hydraulic elevator field with low load and large stroke, novel and practical performances and realistic feasibility.

Description

Technical field: [0001] The invention relates to a hydraulic cylinder and a manufacturing method thereof, belonging to the technical field of hydraulic machinery. Background technique: [0002] The existing hydraulic cylinder structure is a stereotyped product composed of main parts such as cylinder barrel, piston, piston rod, sealing guide sleeve, etc., and is widely used in various industries. However, there are obvious defects in the application of hydraulic mechanical equipment with small load and large stroke. The cylinder oil chamber is large and the piston rod is thick, which makes the oil tank, flow rate, hydraulic pump, motor and other configurations of the hydraulic system large, and the energy consumption is high. The high manufacturing cost limits the application and development of hydraulic mechanical equipment with low load and large stroke. Invention content: [0003] The invention provides a hydraulic cylinder and a manufacturing method thereof, belonging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/00
Inventor 贾广生
Owner 贾广生
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