CN208858586U - A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive - Google Patents
A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive Download PDFInfo
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- CN208858586U CN208858586U CN201821384998.XU CN201821384998U CN208858586U CN 208858586 U CN208858586 U CN 208858586U CN 201821384998 U CN201821384998 U CN 201821384998U CN 208858586 U CN208858586 U CN 208858586U
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- dynamic pressure
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Abstract
The utility model is suitable for transfer tube field, a kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive is provided, the columnar axle sleeve of the adjective-centre structure generally annulus, it is characterized in that, two end faces of the axle sleeve are evenly distributed with the liquid guide flow slot for being directed toward axle sleeve axle center, and every liquid guide flow slot is using length direction middle line as axis, in middle position to be provided with end face dynamic pressure groove perpendicular to axis direction, the end face dynamic pressure groove is distributed with axisymmetrical, and the sleeve lining is provided with circumferential dynamic pressure groove.In this structure, axle sleeve is axial and end face shaking is small, and lubricating oil can attach to end face dynamic pressure groove and circumferential dynamic pressure rooved face, can not only play the role of antifriction effect, and can play centering, improve the service life and stability of transfer tube.
Description
Technical field
The utility model belongs to driving pump technical field more particularly to a kind of novel anti-attrition centering knot of shaftless electromagnetic drive
Structure.
Background technique
For the pump housing used under liquid environment, shaftless electromagnetic drive pump is of wide application, such as new energy vapour
The cooling system of vehicle power battery, cooling media are completed to recycle by transfer tube；For another example oil pump is rotated by rotor, realizes oil
It extracts on road.The structure of shaftless electromagnetic drive pump includes stator and rotor, and there is an axle sleeve in centre, without axis hole at the top of stator, is had in stator
Two groups of coil windings generate the magnetic field force of controllable any direction, size, rotor by controlling the electric current of two groups of coil windings
It is installed on above stator, and there are two block permanent magnets in rotor bottom surface, stator, which is powered, generates magnetic field permanent magnet iron generation active force, realizes and drives
The rotation of turn, rotor rotate driving liquid circulation, this transfer tube sealing effect is good, can prevent liquid entry into stator very well
Inside, some high-end electromagnetic drive motors also use this principle.
But the axle sleeve centering effect of this transfer tube is poor, in rotor rotation process, sleeve lining and end face can generate rolling
It is dynamic, larger frictional force is generated, is had an impact to the service life and stability of transfer tube.
Utility model content
In view of the above problems, the purpose of this utility model is to provide one kind, it is intended to solve existing shaftless electromagnetic drive oil
Pump shaft sleeve technical problem easy to wear.
The utility model adopts the following technical solution:
The novel anti-attrition adjective-centre structure of shaftless electromagnetic drive, the generally columnar axle sleeve of annulus, two, axle sleeve ends
Face is evenly distributed with the liquid guide flow slot for being directed toward axle sleeve axle center, and every liquid guide flow slot is using length direction middle line as axis, in
Between position to be provided with end face dynamic pressure groove perpendicular to axis direction, the end face dynamic pressure groove is distributed with axisymmetrical, in the axle sleeve
Wall is provided with circumferential dynamic pressure groove.
Further, the liquid guide flow slot of two end faces of the axle sleeve, end face dynamic pressure slot structure and position are all the same, and every
The liquid guide flow slot number of a end face is 3N, and wherein N is the natural number greater than 0.
Further, the quantity of the circumferential dynamic pressure groove is similarly 3N, and is arranged along sleeve length direction.
Further, the both ends of the circumferential dynamic pressure groove are connected to the liquid guide flow slot on end face.
The beneficial effects of the utility model are: the utility model structure is simple, design rationally, when work, drives pump stator
In lubricating oil enter end face dynamic pressure groove through liquid guide flow slot, and take advantage of a situation into circumferential dynamic pressure groove, since lubricating oil can attach to
End face dynamic pressure groove and circumferential dynamic pressure rooved face, can not only play the role of antifriction effect, and can play centering, improve transfer tube
Service life and stability, this transfer tube be suitable for the various pump housings used under liquid environment.
Detailed description of the invention
Fig. 1 is the side view of the novel anti-attrition adjective-centre structure of shaftless electromagnetic drive provided by the embodiment of the utility model；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the front view of the novel anti-attrition adjective-centre structure of shaftless electromagnetic drive provided by the embodiment of the utility model；
Fig. 4 is the dimensional drawing of liquid guide flow slot；
Fig. 5 is the novel anti-attrition adjective-centre structure face size figure of shaftless electromagnetic drive；
Fig. 6 is that end face dynamic pressure groove is cutd open to dimensional drawing.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In order to illustrate technical solution described in the utility model, the following is a description of specific embodiments.
As shown in Figure 1-3, the novel anti-attrition adjective-centre structure of shaftless electromagnetic drive provided in this embodiment, generally annulus column
The axle sleeve of shape, two end faces of the axle sleeve are evenly distributed with the liquid guide flow slot 1 for being directed toward axle sleeve axle center, every liquid guide flow slot 1
Using length direction middle line as axis, in middle position to be provided with end face dynamic pressure groove 2, the end face dynamic pressure groove perpendicular to axis direction
It is distributed with axisymmetrical, the sleeve lining is provided with circumferential dynamic pressure groove 3.In the present embodiment, the liquid of two end faces of axle sleeve
Diversion trench, end face dynamic pressure slot structure and position are all the same, i.e., liquid guide flow slot, the end face dynamic pressure groove of two end faces correspond,
It is symmetrical, so that rotor stability of rotation.The circumferential direction dynamic pressure groove is through slot, has certain depth, the both ends of circumferential dynamic pressure groove
The liquid guide flow slot being connected on end face.When work, the lubricating oil in pump stator is driven to enter end face dynamic pressure through liquid guide flow slot
Slot, and take advantage of a situation into circumferential dynamic pressure groove, therefore in rotor rotation process, since lubricating oil can attach to end face dynamic pressure groove and circumferential direction
Dynamic pressure rooved face, sleeve lining and end face will form lubricating protective film, can not only play antifriction effect, and can play centering
Effect, improves the service life and stability of transfer tube.
This structure is suitable for the various pump housings used under liquid environment, and use scope is not limited to oil pump.
In this structure, in order to keep stability, the liquid guide flow slot number of each end face is 3N, and wherein N is oneself greater than 0
It so counts, in diagram, the liquid guide flow slot number of each end face is three, is symmetrically provided with end face dynamic pressure on every liquid guide flow slot
Slot, the quantity of the circumferential direction dynamic pressure groove is similarly three, and is arranged along sleeve length direction.
As a kind of axle sleeve processing instance, liquid guide flow slot is distributed in axle sleeve both ends of the surface, and each end face has 3, and liquid is led
For chute trisection in end face of shaft bush, liquid guide flow slot mills out flute mark by radius 1.50mm ball cutter, as shown in figure 4, groove width
1.25mm, groove depth 0.14mm；As shown in Figure 5,6, end face dynamic pressure groove by diameter 3.0mm ball cutter using the axle sleeve center of circle as the center of circle,
Radius 3.75mm, 20 ° of milling cutter feed angle of circumference, the end face dynamic pressure groove groove width 1.25mm, groove depth 0.14mm, 25 ° of key groove；Institute
Circumferential dynamic pressure groove trisection is stated in sleeve lining, the circumferential direction dynamic pressure groove and the same radial distribution of liquid guide flow slot, the circumferential direction are dynamic
Indent groove width 1.90mm, groove depth 0.25mm, 27 ° of key groove.
To sum up, this structure is applied to the various pump housings and motor used under liquid environment, and axle sleeve is axial and end face is shaken
Small, lubricating oil can attach to end face dynamic pressure groove and circumferential dynamic pressure rooved face, can not only play antifriction effect, and can play centering
Effect, improve the service life and stability of transfer tube.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (4)
1. a kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive, the columnar axle sleeve of the adjective-centre structure generally annulus is special
Sign is that two end faces of the axle sleeve are evenly distributed with the liquid guide flow slot for being directed toward axle sleeve axle center, and every liquid guide flow slot is with length
Degree direction middle line is axis, and in middle position to be provided with end face dynamic pressure groove perpendicular to axis direction, the end face dynamic pressure groove is with axis
Line is symmetrical, and the sleeve lining is provided with circumferential dynamic pressure groove.
2. the shaftless novel anti-attrition adjective-centre structure of electromagnetic drive as described in claim 1, which is characterized in that two end faces of the axle sleeve
Liquid guide flow slot, end face dynamic pressure slot structure and position it is all the same, and the liquid guide flow slot number of each end face is 3N, wherein N
For the natural number greater than 0.
3. the shaftless novel anti-attrition adjective-centre structure of electromagnetic drive as claimed in claim 2, which is characterized in that the circumferential direction dynamic pressure groove
Quantity is similarly 3N, and is arranged along sleeve length direction.
4. the shaftless novel anti-attrition adjective-centre structure of electromagnetic drive as claimed in claim 3, which is characterized in that the circumferential direction dynamic pressure groove
Both ends are connected to the liquid guide flow slot on end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821384998.XU CN208858586U (en) | 2018-08-27 | 2018-08-27 | A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821384998.XU CN208858586U (en) | 2018-08-27 | 2018-08-27 | A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive |
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| Publication Number | Publication Date |
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| CN208858586U true CN208858586U (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821384998.XU Active CN208858586U (en) | 2018-08-27 | 2018-08-27 | A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895000A (en) * | 2018-08-27 | 2018-11-27 | 格林美（武汉）城市矿产循环产业园开发有限公司 | A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive |
| CN111457075A (en) * | 2020-03-31 | 2020-07-28 | 中国航发湖南动力机械研究所 | Antifriction device and aircraft transmission system main reducer |
-
2018
- 2018-08-27 CN CN201821384998.XU patent/CN208858586U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895000A (en) * | 2018-08-27 | 2018-11-27 | 格林美（武汉）城市矿产循环产业园开发有限公司 | A kind of novel anti-attrition adjective-centre structure of shaftless electromagnetic drive |
| CN111457075A (en) * | 2020-03-31 | 2020-07-28 | 中国航发湖南动力机械研究所 | Antifriction device and aircraft transmission system main reducer |
| CN111457075B (en) * | 2020-03-31 | 2021-07-27 | 中国航发湖南动力机械研究所 | Antifriction device and aircraft transmission system main reducer |
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