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Non-oil-immersed air gap type hydraulic motor vane pump

A hydraulic motor and vane pump technology, which is applied to rotary piston/oscillating piston pump components, pump elements, mechanical equipment, etc., can solve the problems of reducing the total efficiency of hydraulic motor pumps, complex hydraulic power units, and increased additional heat generation , to achieve the effect of light weight, compact structure and sufficient oil absorption

Active Publication Date: 2013-04-17
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil flow cooling method is generally to immerse the motor completely in the oil, so the air gap of the high-speed rotating motor and the motor rotor will produce viscous friction on the surrounding oil, and the additional heat will increase, reducing the overall efficiency of the hydraulic motor pump; generally The hydraulic pump or hydraulic motor pump has the problem of insufficient oil absorption to varying degrees. Setting an auxiliary booster pump can improve the oil absorption capacity of the main pump, but the booster pump is generally an independent auxiliary pump, which makes the entire hydraulic power unit more complicated and bulky. bigger

Method used

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  • Non-oil-immersed air gap type hydraulic motor vane pump

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Embodiment Construction

[0013] Such as Figure 1 to Figure 5 As shown, an air-gap non-oil-immersed electro-hydraulic power unit mainly includes a housing 1, a motor stator 2, a motor rotor 3, a main shaft 4, an oil outlet gland 11, a vane pump core 12, and a pump core seat 13 , the outer cover 22, the inner end cover 23, the suspension ring 27, the junction box 29, the motor rotor 3 and the main shaft 4 are press-fitted into one body, and are supported on the housing 1 and the inner end cover 23 through the first bearing 5 and the second bearing 25 Above, the vane pump core 12 is connected to the main shaft 4 through the spline 4c, the vane pump core 12 is installed in the pump core seat 13, and passes through the oil outlet gland 11, the second sealing ring 10, the fifth sealing ring 14, The first screw 8 and the first washer 9 are fixed on the casing 1, the motor stator 2 is press-fitted on the inner hole 1e of the casing 1, and the inner end cover 23 and the ninth sealing ring 21 are fixed on the ...

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Abstract

The invention relates to a non-oil-immersed air gap type hydraulic motor vane pump. A motor rotor (3) and a main shaft (4) are compressed together, and are supported on a shell (1) and an inner end cover (23) by a first bearing (5) and a second bearing (25), a pump core (12) of the vane pump is connected with the main shaft (4) by a spline (4c), the pump core (12) of the vane pump is arranged in a pump core holder (13), a motor stator (2) is pressed in an inner hole (1e) of a shell (1), the shell (1) is provided with an oil inlet (1a), an annular flow channel (1b) and a cooling flow channel (1d), and the main shaft (4) is provided with a central hole (4a) of the main shaft and a pore plate centrifugal pump (4c). The heat generated by a motor and the like is taken away by oil flowing in a motor pump, the fan in the motor is saved, and meanwhile, the hydraulic motor vane pump can absorb oil and enhance the pressure by the central hole of the main shaft and the pore plate centrifugal pump. The aerodynamic noise and the cavitation noise are eliminated, so that the entire hydraulic motor vane pump has a favorable silencing performance.

Description

technical field [0001] The invention relates to a hydraulic motor pump, in particular to a motor air gap non-oil-immersed hydraulic motor pump with oil cooling. Background technique [0002] At present, the traditional hydraulic power unit with the electric motor as the prime mover is mostly a discrete structure. It is a motor oil pump unit composed of a standard electric motor and a hydraulic pump through couplings, connecting sleeves and other mechanisms. It has complex structure, large volume and weight, and noise. There are shortcomings such as external leakage at the height and shaft extension. The hydraulic motor pump is a new type of hydraulic power unit that integrates the motor and the hydraulic pump. It eliminates parts such as couplings and connecting sleeves, removes the motor fan, and uses oil flow to dissipate heat from the motor. Therefore, the structure is compact and the noise is large. Reduce and eliminate external leakage. The oil flow cooling method is...

Claims

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Application Information

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IPC IPC(8): F04C15/00
Inventor 冀宏王金林张继铭任威孙东宁王文璐
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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