Tilted variable axial piston device

A technology of axial piston and swash plate type, which is applied in the direction of reciprocating piston engines, transmission devices, fluid transmission devices, etc., can solve the problem of shortening the life of the oil cylinder 51 and piston 53, affecting the reciprocating motion of the piston 53, and design restrictions on the angle of the swash plate 70, etc. problem, achieve the effect of increasing mechanical efficiency, avoiding friction and shortening length

Inactive Publication Date: 2008-07-30
KOREA INST OF MASCH & MATERIALS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] As a result, the service life of the oil cylinder 51 and the piston 53 is shortened sharply, so that the angle design of the swash plate 70 is limited, and the rotation angle of the sliding sleeve and the spherical axis of the piston 53 directly affects the reciprocating motion of the piston 53

Method used

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  • Tilted variable axial piston device
  • Tilted variable axial piston device
  • Tilted variable axial piston device

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Embodiment Construction

[0061] The best implementation form of the variable swash plate type axial piston device of the present invention will be described in detail below with reference to the accompanying drawings.

[0062] Fig. 5 is a longitudinal sectional view showing the internal structure of the variable variable swash plate type axial piston device of the present invention, and the parts that are the same as the conventional structural elements are marked with the same symbols.

[0063] In Fig. 5, reference numeral 20 denotes a housing of a variable variable swash plate type axial piston device.

[0064] The casing 20 includes: a bearing assembly 30 for axially supporting the rotating shaft 40 , an oil cylinder 50 rotating simultaneously with the rotating shaft, and a fluid flow tube composed of a multi-channel pipe for the fluid to flow into or out of the oil cylinder 51 of the oil cylinder 50 . The flow path assembly 60 is a cylindrical body 10 having a cylindrical cavity 10a in which the c...

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Abstract

A variable displacement swash plate axial piston device is provided. A universal joint(90) is joined to a shaft(40) to rotate in circumferential direction of the shaft and has bearing outer races(94) joined to ends of extension parts thereof extending to three directions to freely rotate in circumferential directions of the extension parts, and a sliding sleeve 81, which has a joint hole for inserting the joint, is joined to the swash plate 70 to freely slide, and the bearing outer races coupling the position of the sliding sleeve to transfer power in the process that the sliding sleeve slides and rotates along the swash plate. According to the invention, when the piston is freely sliding-rotating on the swash plate as well as reciprocating, the piston will move along the axial line of an oil cylinder 51 in parallel by increasing turning angle of the piston rod which freely rotatablely joins to the sliding sleeve, and in this manner, the inclination angle can be further increased to prolong the stoke of the piston, so as to increase suction flow rate of the liquid and torque of a rotary shaft.

Description

technical field [0001] The present invention relates to a variable variable swash plate type axial piston device used in heavy equipment and various industrial fields, and more particularly to such a variable variable swash plate type axial piston device, that is, in order to convert a rotary motion into a linear motion or to convert a piston The linear motion of the linear motion is turned into a rotary motion, and the rotation angle of the piston connecting rod freely connected with the sliding sleeve is enlarged (when the piston device is reciprocating while sliding and rotating on a sloping plate with an inclined surface, the sliding sleeve Slide and rotate on the swash plate), so that the piston can move parallel to the axis that is the same as the axial direction of the oil cylinder. Since it is not limited by the rotation angle of the piston rod, the inclination angle of the swash plate can be further increased, thus It can extend the stroke distance of the piston, incr...

Claims

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Application Information

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IPC IPC(8): F04B27/08F04B1/12F16H39/04F04B1/22F03C1/253
CPCF04B27/0808F04B27/083F04B27/0852F04B27/0865F04B27/0886
Inventor 咸永福罗炅培
Owner KOREA INST OF MASCH & MATERIALS
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