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Dynamic pressure lubricating piston shoe

A sliding shoe and lubricant technology, which is applied in the direction of engine lubrication, gear lubrication/cooling, engine components, etc., can solve the problem of affecting the transmission accuracy and transmission efficiency of the push rod mechanism, cannot produce convergent fluid wedges, and cannot form wedge-shaped lubricating films And other problems, to achieve the effect of improving transmission accuracy and transmission efficiency, stable position, and improved working life

Inactive Publication Date: 2016-04-20
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the sliding shoe in this invention always maintains surface contact with the disk, its dynamic pressure lubrication effect is very limited. Convergent fluid wedges cannot be produced during the relative movement between the shoe and the disc, and therefore a wedge-shaped lubricating film cannot be formed. This dynamic pressure lubrication structure also has technical defects such as large friction resistance and easy to cause wear of the friction pair. Obviously, this will directly affect the The transmission accuracy and transmission efficiency of the push rod mechanism

Method used

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  • Dynamic pressure lubricating piston shoe
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  • Dynamic pressure lubricating piston shoe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like Figure 1-4 As shown, a dynamic pressure lubricating shoe includes a friction surface, the shape of the friction surface adopts a sector ring, the bottom surface of the sector ring is provided with a number of slopes 24 along the radial direction, and the distance between the number of slopes 24 and the plane of relative movement is A convergent fluid wedge is formed between them, the convergent fluid wedge is provided with a lubricant, and a cylinder is provided at the other end relative to the friction surface, the outer circle of the cylinder is provided with an external thread, and the cylinder A spherical groove 25 is provided on the front end surface of the front end, and the lubricant is a fluid lubricant, and the fluid lubricant is a liquid lubricant, and the liquid lubricant is a mineral lubricating oil.

[0065] The feature of the present invention is: the friction surface of the dynamic pressure lubricating shoe and the relative movement adopts a structu...

Embodiment 2

[0067] A dynamic pressure lubricating shoe, which is similar to Example 1, except that the liquid lubricant is synthetic lubricating oil.

Embodiment 3

[0069] A dynamic pressure lubricating shoe, which is similar to Embodiment 1, except that: the fluid lubricant is a gas lubricant, and the gas lubricant is air.

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PUM

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Abstract

The invention relates to a dynamic pressure lubricating piston shoe. The dynamic pressure lubricating piston shoe comprises a friction surface, the appearance of the friction surface is in an annular sector shape, and a plurality of slopes (24) are arranged on the bottom face of the annular sector shape in the radial direction. The dynamic pressure lubricating piston shoe has the beneficial effects that as a convergence type fluid wedge can be formed between the dynamic pressure lubricating piston shoe and the relative motion plane, and a wedge-shaped lubricating film can be further formed on the premise that a lubricating agent is formed between friction pairs, the dynamic pressure lubricating method has the beneficial effects that the frictional resistance is substantially reduced, abrasion of the friction pairs is greatly reduced, the transmission accuracy and the transmission efficiency of the dynamic pressure friction pair are substantially improved, and the working service life is substantially prolonged accordingly.

Description

technical field [0001] The invention relates to a dynamic pressure lubricating structure, in particular to a dynamic pressure lubricating shoe. Background technique [0002] Chinese invention patent ZL200910210481.8 discloses a swash plate guide rod type continuously variable transmission, which belongs to the technical field of mechanical transmissions. According to this invention, the swash plate guide rod type continuously variable transmission is composed of an active mechanism, an output mechanism, and a box (15), and the active mechanism is composed of a swash plate (12) with adjustable inclination and more than three guide rods arranged at equal angles. , one end of the three guide rods has a helical gear that can rotate in one direction, and the other end is abutted on the swash plate surface, and can perform circular sliding on the swash plate surface. The output mechanism is composed of a unidirectionally rotating output shaft (2) and a large helical gear (3) slee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16N15/00F16N15/02
CPCF16H57/04F16H57/0464F16N15/00F16N15/02
Inventor 雷红李立新孙建东
Owner BEIJING UNION UNIVERSITY