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Plunger type motor pump

A motor pump and plunger technology, applied in the field of plunger pumps, can solve the problems of low overall power density and weak cylinder strength, and achieve the effects of improving the utilization rate of internal space, large structural design, and improving strength and rigidity

Active Publication Date: 2015-07-22
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a plunger-type motor pump, which solves the problems of weak cylinder strength and low overall power density of the existing plunger-type motor pump

Method used

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  • Plunger type motor pump
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Examples

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 As shown, the embodiment of the present invention includes a casing 8, a motor stator 16, a motor rotor 15, a cylinder block 11, 10 plunger shoe assemblies 9, a left swash plate 7, a right swash plate 24, and 10 suction valve assemblies 12 and 10 A extrusion valve assembly 13, the casing 8, the motor stator 16 and the motor rotor 15 are all cylindrical, the motor stator 16 is assembled in the casing 8, and the left end cover 2 and the right end cover 17 are respectively fixed to the casing by bolts 1 8. At the left and right ends, the cylinder body 11 is a stepped shaft with a central boss, and its two ends are respectively supported by the tapered roller bearings 5 ​​at the center of the left end cover 2 and the center of the right end cover 17, and the left bearing cover 4 is fastened by screws 3 In the center of the left end co...

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Abstract

The invention discloses a plunger type motor pump, and belongs to a plunger pump. The problems of weak strength and low overall power density of a cylinder of the conventional plunger motor pump are solved. According to the plunger type motor pump, a motor stator is assembled in a housing. The two ends of the cylinder are supported in the centers of a left end cover and a right end cover respectively. A motor rotor is sleeved on and fixedly connected with a lug boss on the middle part of the cylinder. N plunger cavities are reserved in each of the left and right end faces of the lug boss of the cylinder. A plunger piston shoe component is arranged in each plunger cavity. Suction and forcing valve components are arranged in correspondence to each plunger piston shoe component on the lug boss of the cylinder. A left swash plate is fixed on the inner side of the left end cover, and a right swash plate is fixed on the inner side of the right end cover. The plate surfaces of the left and right swash plates are parallel. Every two coaxial plunger piston shoe components are pressed against each other through a support rod, and piston shoe heads at the two ends are pressed on the plate surfaces of the left and right swash plates respectively. Reverse thrust generated between the plunger piston shoe components at the two ends and the swash plates and hydraulic acting force in the cylinder are transmitted through the support rods, and internal reacting force is fully utilized, so that the number of the parts is decreased, the overall strength of the pump is strengthened, and the internal space utilization rate of the cylinder is increased.

Description

technical field [0001] The invention belongs to plunger pumps, in particular to a plunger type motor pump. Background technique [0002] The motor pump is a new type of hydraulic power unit, which combines the motor and the pump as a whole, with simple and compact structure, high efficiency, less leakage and low noise. Compared with the previous "three-stage" power unit connected by couplings, the structure of the motor pump is highly integrated, and its size has been greatly reduced on the basis of the past. It is very portable and can be directly used in many Special occasions where the space is limited and the environment requires high requirements. [0003] The motor pump itself has a high degree of integration, which brings the advantages of compact structure and also makes its internal space very tight. When the motor pump is working, in order to ensure that the internal parts do not interfere with each other and realize its functions stably and reliably. In the sett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B17/03F04B1/22
Inventor 朱碧海贺小峰王伟伟
Owner HUAZHONG UNIV OF SCI & TECH
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