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Axial plunger type motor pump

A technology of motor pump and axial column, which is applied in the direction of variable capacity pump components, liquid variable capacity machines, pumps, etc., can solve the problems of large radial size, severe vibration and noise of conical distribution valve, and achieve reduction Radial size, low working noise, solve the problem that the speed cannot be too high

Active Publication Date: 2014-10-15
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0005] The invention provides an axial plunger motor pump, which solves the problems that the existing axial plunger motor pump has a large radial dimension and severe vibration and noise during the operation of the conical distribution valve.

Method used

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  • Axial plunger type motor pump

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] Such as figure 1 As shown, an embodiment of the present invention includes a housing 12, a left end cover 1, a right end cover 16, a left swash plate 8, a right swash plate 17, a motor stator 10, a motor rotor 9, and a cylinder shaft 6. The housing 12 has a cylindrical inner cavity, and the left and right end faces are respectively fixed with the left end cover 1 and the right end cover 16 connected by bolts, and the left deep groove ball bearing 4 and the right deep groove ball bearing are respectively installed in the center bearing holes of the left and right end covers Bearing 18, the left swash plate 8 and the right swash plate 17 have the same shape, both of which are disc-shaped with a central hole, and the upper surface and the bottom surface form an angle of 15°. The left swash plate 8 and the right swash plate 17 12 The vertical center...

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Abstract

The invention provides an axial plunger type motor pump, which belongs to an axial plunger pump in a hydraulic power source and solves the problems that the existing axial plunger pump is larger in axial size, and a conical flat valve generates violent vibration and noise during work. The axial plunger type motor pump comprises a shell, a left end cover, a right end cover, a left tilting tray, a right tilting tray, a motor stator, a motor rotor and a cylinder body shaft, wherein the left end and the right end of the cylinder body shaft are respectively provided with an axial suction hole passage and an axial discharge hole passage, the cylinder body shaft is axially provided with N plunger through holes which are uniformly distributed along the circumference, plunger assemblies are arranged in the plunger through holes, the cylinder body shaft is radially provided with N uniformly distributed suction valve seat holes and N uniformly distributed extrusion valve seat holes, suction valve assemblies and extrusion valve assemblies are respectively arranged in the suction valve seat holes and the extrusion valve seat holes for forming N identical suction valves and N identical extrusion valves. The axial plunger type motor pump is more compact and lighter in structure, high in power density and low in working noise, the working medium can be oil, water or other liquid medium, and the working rotating speed of a plunger pump of a flow distributing valve can be improved.

Description

technical field [0001] The invention belongs to an axial plunger pump in a hydraulic power source, in particular to an axial plunger motor pump. technical background [0002] Modern hydraulic transmission technology is gradually developing towards integration and digitalization. Many occasions require a smaller, lighter, lower-noise hydraulic power source to cope with complex environmental conditions. [0003] Beijing Institute of Precision Electromechanical Control Equipment Zhu Yi and others disclosed "an integrated motor pump for hydraulic system" in the invention patent 201210231242.2. The volume is reduced to a certain extent, and the sealing reliability is improved. However, the integration of the motor and the hydraulic pump of the pump is limited, and the axial dimension is relatively large. [0004] In 2010, Huazhong University of Science and Technology submitted the invention patent application for "double swash plate valve flow distribution axial piston type wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B17/03F04B53/10
Inventor 朱碧海王伟伟贺小峰
Owner HUAZHONG UNIV OF SCI & TECH
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