Air cylinder with non-rotatable piston and non-rotatable piston rod

A piston rod and piston technology, applied in fluid pressure actuating devices, etc., can solve problems such as difficult work, complex structure, and affecting the service life of cylinders, and achieve the effects of wear balance, reduced wear, and smooth operation

Inactive Publication Date: 2015-11-25
FENGHUA KAINA AUTOMATION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this product temporarily solves the non-rotatable problem, its structure is relatively complicated, such as difficult workmanship, and uneven wear of the piston and cylinder wall, which affects the service life of the cylinder.

Method used

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  • Air cylinder with non-rotatable piston and non-rotatable piston rod
  • Air cylinder with non-rotatable piston and non-rotatable piston rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Examples, see e.g. Figures 1 to 2 As shown, a cylinder with a non-rotatable piston and piston rod is composed of a cylinder body 10 and a piston rod 20 disposed in the cylinder body 10. The cylinder body 10 has a straight cylindrical inner cavity 100, and the piston 30 is fixed on On the piston rod 20 , the outer surface of the piston 30 is in close contact with the side wall of the inner chamber 100 of the cylinder 10 , and the cross sections of the inner chamber 100 and the piston 30 are both waist-shaped holes.

[0020] Described cylinder body 10 comprises cylinder body 1, front end cover 2 and rear end cover 3, and the front end of cylinder body 1 is fixed with front end cover 2, and the rear end of cylinder body 1 is fixed with rear end cover 3, and the side of front end cover 2 is provided with Exhaust hole 4, air inlet hole 5 is arranged on the side of rear end cover 3.

[0021] The rear end of the piston rod 20 is screwed and fixed with a piston 30 and a fixin...

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Abstract

The invention discloses an air cylinder with a non-rotatable piston and a non-rotatable piston rod. The air cylinder comprises a cylinder block (10) and the piston rod (20) arranged in the cylinder block (10), wherein a cylindrical inner cavity (100) is formed in the cylinder block (10), the piston (30) is fixed to the piston rod (20), the outer surface of the piston is closely attached to the side wall of the inner cavity (100) of the cylinder block (10), and the cross section of the inner cavity (100) and the cross section of the piston (30) are both in the shape of a kidney-shaped hole. The air cylinder with the non-rotatable piston and the non-rotatable piston rod operates smoothly and is balanced in wear, it is guaranteed that the piston and the piston rod cannot rotate, the using requirement in specific occasions is met, and the inner wall of a barrel body can be continuously oiled for lubrication so that wear can be reduced.

Description

Technical field: [0001] The invention relates to the technical field of pneumatic equipment, in particular to a cylinder with a non-rotatable piston and piston rod. Background technique: [0002] Solenoid valves, cylinders, and air handlers are often referred to as the "triple piece" of a pneumatic system, especially the cylinder. Although conventional air cylinders vary in shape, their internal diameter cross-sections are generally circular. The advantages of this type of cylinder are that there is no need to consider directionality during installation; the piston and piston rod run smoothly; the manufacturing process is relatively simple; and the wear is even after use. Its disadvantage is that the piston and the piston rod can rotate freely in 360 degrees, which will cause trouble when used in some specific occasions. For example, when it is required to be used in high-precision aerospace vehicles, high-precision instruments, high-speed rail trains and other supporting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1452F15B15/1423F15B15/1433
Inventor 李锴
Owner FENGHUA KAINA AUTOMATION MACHINERY
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