Variable displacement axial axle piston pump having easy to maintain and repair built-in adjuster

Abstract

The present invention provides a variable displacement axial axle piston pump having an easy to maintain and repair built-in adjuster. According to the present invention, the variable displacement axial axle piston pump having an easy to maintain and repair built-in adjuster has the effects of enabling convenient and easy assembly and repair, reducing the number of components by simplifying the structure of an adjuster module for adjusting the inclined angle of the cylinder housing center shaft from the drive shaft, and reducing the manufacturing cost thereof. The present invention comprises: a drive shaft connected to a drive mechanism; a retainer having the drive shaft coupled to the front surface thereof and having a hook formed on the rear surface thereof; a cylindrically shaped cylinder housing disposed apart from the rear surface of the retainer; a plurality of pistons inserted in the cylinder housing and having a leading end portion projecting to the outside of the cylinder housing contacting the hook of the retainer; a valve plate coupled to the rear surface of the cylinder housing and defining a passage; an axle block formed in a cylindrical shape in which the cylinder housing and the valve plate are inserted, and defining an inner passage; a main housing having the drive shaft and the retainer disposed therein; an end casing having the axle block disposed to be capable of turning therein, being coupled to the main housing, and having an open top surface; a cover coupled to the top surface of the end casing; and an adjuster module connected to the axle block and exposed to the outside of the end casing, and manipulated by the user to adjust the turning angle of the axle block.

Description

technical field [0001] The present invention relates to a variable-capacity inclined-shaft axial piston pump with a built-in regulator and easy maintenance, and more particularly, to a simple and easy assembly and disassembly to adjust the angle of inclination between the central axis of the cylinder body and the transmission shaft The structure of the regulator assembly is simplified to reduce the number of parts, thereby saving manufacturing costs. A variable-capacity inclined-axis axial piston pump with a built-in regulator and easy maintenance. Background technique [0002] The variable-capacity inclined-axis axial piston pump is a pump used for quantitative discharge of fluids with various viscosities. This variable-capacity oblique-axis axial piston pump includes a plunger, one end of which is closely fixed to a retainer integrally formed at the end of the drive shaft, and the other end is inserted into the cylinder so that the setting The central axis of the cylinder...

AI Technical Summary

Problems solved by technology

[0006] However, the conventional variable displacement oblique axis axial piston pump 100' has a problem that the number of parts forming the adjuster assembly 80' is large, and the assembly structure of the adjuster assembly 80' is complicated, so that it is difficult to assemble the regulator assembly 80'. Considerable time is consumed when disassembling the pump or for maintenance work on the pump

In addition, since a plurality of bearings are assembled for supporting the adjustment table 83' of the fixed adjuster assembly 80', it is cumbersome to repeatedly replace the bearings after a certain period of use, since the assembly of multiple bearings requires periodic maintenance as described above. Consumables for replacement bearings, so there is a problem that maintenance of the pump is very troublesome and costs increase

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