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Shaft-free electromagnetic-drive novel wear-reduction centering structure

An electromagnetic drive, a new type of technology, applied in the direction of machines/engines, liquid fuel engines, pumping devices for elastic fluids, etc., can solve the problems of easy wear and tear of the shaft sleeve, to improve the service life and stability, structure Simple, well-designed effects

Pending Publication Date: 2018-11-27
GEM WUHAN URBAN MINE RECYCLING IND PARK DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a technical problem aimed at solving the easy wear and tear of the shaft sleeve of the existing shaftless electromagnetic drive oil pump.

Method used

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  • Shaft-free electromagnetic-drive novel wear-reduction centering structure
  • Shaft-free electromagnetic-drive novel wear-reduction centering structure
  • Shaft-free electromagnetic-drive novel wear-reduction centering structure

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0019] like Figure 1-3 As shown, the shaftless electromagnetic drive novel wear-reducing centering structure provided in this embodiment is a circular cylindrical bushing as a whole, and liquid guide grooves 1 pointing to the shaft center of the bushing are evenly distributed on both end surfaces of the bushing. , each liquid diversion groove 1 takes the midline of the length direction as the axis, and has an end dynamic pressure groove 2 in the middle position perpend...

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Abstract

The invention is applicable to the field of drive pumps and provides a shaft-free electromagnetic-drive novel wear-reduction centering structure. The whole centering structure is a columnar shaft sleeve and is characterized in that liquid guide grooves pointing to the axis of the shaft sleeve are evenly distributed on each of the two end faces of the shaft sleeve, the middle of each liquid guide groove is provided with an end face dynamic pressure groove vertical to the axis direction by using the length-direction central line of as the axis, the end face dynamic pressure grooves are symmetrically distributed relative to the axis, and the inner wall of the shaft sleeve is provided with a circumferential dynamic pressure groove. By the structure, the shaft-free electromagnetic-drive novel wear-reduction centering structure has the advantages that the shaft sleeve is small in axial and end face shaking, lubricating oil attaches to the surfaces of the end face dynamic pressure grooves andthe circumferential dynamic pressure groove, wear reduction is achieved while centering is achieved, the service life of a drive pump is prolonged, and the stability of the drive pump is increased.

Description

technical field [0001] The invention belongs to the technical field of driving pumps, and in particular relates to a novel wear-reducing and centering structure of a shaftless electromagnetic drive. Background technique [0002] For the pump body used in a liquid environment, the shaftless electromagnetic drive pump has a wide range of applications, such as the cooling system of the power battery of a new energy vehicle, the cooling medium completes the cycle through the drive pump; another example is the oil pump, which realizes the oil circuit through the rotation of the rotor extract. The structure of the shaftless electromagnetic drive pump includes a stator and a rotor, with a shaft sleeve in the middle, and no shaft hole on the top of the stator. There are two sets of coil windings in the stator. By controlling the current of the two sets of coil windings, a controllable magnetic field of any direction and size can be generated. Force, the rotor is installed above the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/04F04D29/06
CPCF04D13/0606F04D29/04F04D29/061
Inventor 许开华杨正新
Owner GEM WUHAN URBAN MINE RECYCLING IND PARK DEV
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