Compact efficient oil distribution mechanism for radial plunger hydraulic motor

Abstract

The invention provides a compact efficient oil distribution mechanism for a radial plunger hydraulic motor. The mechanism comprises a rear cover, a butterfly spring, a floating separation part, an oildistribution disc, an oil distribution plate, a transmission shaft and the like; under the action of the elastic force of the butterfly spring, initial pressing force always exists on three contact surfaces between the floating separation part and the oil distribution disc, the oil distribution disc and the oil distribution plate, and the oil distribution plate and the shell, and reliable sealingand abrasion compensation are guaranteed; a horn-shaped oil through hole is formed in the center of the floating separation part, and the floating separation part is of an integrated structure; the oil distribution disc is of a conical structure; and the floating separation part and the oil distribution disc divide the inner cavity of the rear cover into an oil passing containing cavity A and anoil passing containing cavity B. According to the compact efficient oil distribution mechanism for the radial plunger hydraulic motor, compared with the prior art, the size is small, the weight is light, the oil passing capacity is large, and the efficiency is high.

Description

technical field [0001] The invention relates to a hydraulic motor oil distribution mechanism, in particular to a compact and high-efficiency oil distribution mechanism for a radial plunger hydraulic motor. Background technique [0002] Radial piston hydraulic motors are widely used because of their advantages of high power density, large displacement, and good low-speed stability, but because of their disadvantages of low efficiency and waste of energy; therefore, their power density should be further explored Great advantage while improving its efficiency. [0003] Among them, the oil distribution mechanism is a key component that affects the efficiency of the radial piston hydraulic motor. In the late 1970s, US Patent No. US4181067 disclosed a radial piston hydraulic motor oil distribution mechanism. The plunger hydraulic motor has achieved good market results. At the end of the 1990s and the beginning of this century, this invention technology was used in China through j...

AI Technical Summary

Problems solved by technology

[0006] In summary, the radial piston hydraulic motor oil distribution mechanism disclosed in US Patent No. US4181067 has the disadvantages of large volume, heavy structure, small oil flow capacity and low efficiency.

It can be seen from the improvement plan of this invention that there are materials on which its noise and wear resistance have been improved, such as: the second embodiment of Chinese patent ZL2008200465757, and Chinese patent CN202832957U, but it has not been found that it is bulky, heavy in structure, Materials for improving the shortcoming of small oil flow capacity

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