CN211425734U - Axial bearing electromagnetic force testing arrangement - Google Patents
Axial bearing electromagnetic force testing arrangement Download PDFInfo
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- CN211425734U CN211425734U CN202020355292.1U CN202020355292U CN211425734U CN 211425734 U CN211425734 U CN 211425734U CN 202020355292 U CN202020355292 U CN 202020355292U CN 211425734 U CN211425734 U CN 211425734U
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- axial bearing
- weighing sensor
- electromagnetic force
- thrust disc
- bearing stator
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Abstract
The utility model provides an axial bearing electromagnetic force testing arrangement, the on-line screen storage device comprises a base, weighing sensor, the switching axle, the axial bearing stator, gasket and thrust disc, base top installation weighing sensor and axial bearing stator, weighing sensor is located the axle center department of axial bearing stator, the inside bearing coil that is equipped with of axial bearing stator, axial bearing stator electricity is connected to the current control unit, weighing sensor signal connection is to weight display element, the switching axle is installed to the weighing sensor top, switching axle top installation thrust disc, be equipped with the gasket between thrust disc and the switching axle, form the clearance between thrust disc and the axial bearing stator, a pedestal, weighing sensor, the switching axle, axial bearing stator and thrust disc all set up with one heart, the tang location. Axial bearing electromagnetic force testing arrangement, simple structure, the cost is lower, the operation of being convenient for, the test result is accurate, has the universality to the survey of the axial bearing electromagnetic force of homogeneous structure.
Description
Technical Field
The utility model belongs to axial electromagnetic bearing field especially relates to an axial bearing electromagnetic force testing arrangement.
Background
The axial electromagnetic bearing generally comprises a thrust disc arranged on a motor rotor and an axial bearing stator fixed on a motor shell, wherein when the axial bearing stator coil works, current passes through the axial bearing stator coil, the current forms a closed magnetic field loop between the axial bearing stator and the thrust disc, and the thrust disc is subjected to the suction action of the axial bearing stator, namely axial electromagnetic force. The magnitude of the axial electromagnetic force is related to the current magnitude of the axial bearing stator and the clearance between the axial bearing stator and the thrust disc.
The axial electromagnetic force of the current motor (hereinafter referred to as magnetic suspension motor) equipped with an axial magnetic bearing is measured after the complete machine is assembled, and a known axial load is applied to the shaft end, wherein the axial load is in a direction opposite to the axial electromagnetic force of the bearing. The above method for detecting electromagnetic force has the following disadvantages: 1) the method is only suitable for final inspection of magnetic suspension motor products, and the assembly process of the method involves more parts and is complex; 2) the complex assembly and large accumulated error are added, and the rotor of the magnetic suspension motor is in dynamic balance under the action of electromagnetic force, so that the distance between the thrust disc and the axial bearing stator is possibly uneven, and the distance between the thrust disc and the axial bearing stator is considered to be uniform at each point through general theoretical calculation, so that the axial electromagnetic force obtained through actual measurement and theoretical calculation has a large difference.
Disclosure of Invention
In view of this, the utility model aims at providing an axial bearing electromagnetic force testing arrangement to a simple structure is provided, and the cost is lower, the operation of being convenient for, the accurate axial bearing electromagnetic force testing arrangement of test result.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides an axial bearing electromagnetic force testing arrangement, the on-line screen storage device comprises a base, weighing sensor, the switching axle, the axial bearing stator, gasket and thrust disc, base top installation weighing sensor and axial bearing stator, weighing sensor is located the axle center department of axial bearing stator, the inside bearing coil that is equipped with of axial bearing stator, axial bearing stator electricity is connected to the current control unit, weighing sensor signal connection is to weight display element, the switching axle is installed to the weighing sensor top, switching axle top installation thrust disc, be equipped with the gasket between thrust disc and the switching axle, form the clearance between thrust disc and the axial bearing stator, a pedestal, weighing sensor, the switching axle, axial bearing stator and thrust disc all set up with one heart, the tang location.
Furthermore, the cross section of the transfer shaft is of a T-shaped structure, external threads are arranged at the bottom of the transfer shaft, and the threads at the bottom of the transfer shaft are screwed into the weighing sensor.
Furthermore, the thrust disc is fixedly connected to the adapter shaft through a number of screws 7 uniformly distributed on 4 circumferences.
Furthermore, the weighing sensor is a spoke type tension and pressure sensor, and the model of the weighing sensor is JLBU-1.
Further, the model of the weight display unit is XMT 808-1.
Further, the model of the current control unit is an EM100 type magnetic bearing controller.
Further, the axial bearing stator is fixedly connected to the base through 6 second screws.
Furthermore, the weighing sensor is fixedly connected to the base through 4 third screws 9 uniformly distributed on the circumference.
Compared with the prior art, axial bearing electromagnetic force testing arrangement have following advantage:
(1) axial bearing electromagnetic force testing arrangement, accomplish axial electromagnetic force's survey with less part, and guarantee that the clearance of thrust disc and axial bearing stator is even unanimous at the each point, simple structure, the cost is lower, the operation of being convenient for, the test result is accurate, has the universality to the survey of the axial bearing electromagnetic force of homogeneous structure.
(2) Axial bearing electromagnetic force testing arrangement, can be before the complete machine assembly, the survey work of axial bearing electromagnetic force just can be accomplished in design initial stage, greatly reduced manufacturing cost.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of an axial bearing electromagnetic force testing device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of an axial bearing electromagnetic force testing device according to an embodiment of the present invention.
Description of reference numerals:
1-a base; 2-a weighing sensor; 3-a transfer shaft; 4-an axial bearing stator; 41-a bearing coil; 5-a gasket; 6-a thrust disc; 7-screw number one; 8-screw number two; 9-third screw.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
An axial bearing electromagnetic force testing device is shown in figures 1 and 2 and comprises a base 1, a weighing sensor 2, an adapter shaft 3 and an axial bearing stator 4, gasket 5 and thrust disc 6, installation weighing sensor 2 and axial bearing stator 4 above base 1, weighing sensor 2 is located axial bearing stator 4's axle center department, the inside bearing coil 41 that is equipped with of axial bearing stator 4, axial bearing stator 4 electricity is connected to the current control unit, 2 signal connection of weighing sensor 2 is to the weight display unit, the spiale 3 is installed to 2 tops of weighing sensor, 3 tops of spiale install thrust disc 6, be equipped with gasket 5 between thrust disc 6 and the spiale 3, form the clearance between thrust disc 6 and the axial bearing stator 4, base 1, weighing sensor 2, the spiale 3, axial bearing stator 4 and thrust disc 6 all set up with one heart, the tang location.
The spacer 5 has various thickness specifications, and the value of the clearance S between the thrust disk 6 and the axial bearing stator 4 can be changed by adjusting the thickness of the spacer 5.
The thrust disc 6 is fastened and connected with the transfer shaft 3 through a number of screws 7 which are uniformly distributed on 4 circumferences.
The cross section of the adapter shaft 3 is of a T-shaped structure, the bottom of the adapter shaft 3 is provided with external threads, and the threads at the bottom of the adapter shaft 3 are screwed into the weighing sensor 2, so that the adapter shaft 3 and the weighing sensor 2 are connected and fastened.
The cross-section of the base 1 is circular.
The current control unit can control the current of the axial bearing stator 4 and can directly feed back the current value. As an application of this patent, the current control unit employs a magnetic bearing controller model EM100 from the flying technologies company. The axial bearing stator 4 and the base 1 are fixedly connected through 6 second screws 8 uniformly distributed on the circumference.
The weighing sensor 2 and the base 1 are fixedly connected through 4 third screws 9 uniformly distributed on the circumference.
The use process of the axial bearing electromagnetic force testing device is as follows:
the assembling method comprises the following steps: the load cell 2 is assembled in place with the housing 1 and fastened using 4 third screws 9. The axial bearing stator 4 is assembled in place with the housing 1 and fastened using 6 second screws 8. The adapter shaft 3 is assembled with the weighing cell 2 in place and the adapter shaft 3 is screwed in place. The thickness of the spacer 5 is determined according to the required value of the clearance S, and the spacer 5 is attached to the spindle 3. The thrust disc 6 is assembled in place with the adapter shaft 3 and fastened using 4 screws 7.
The use process comprises the following steps: when the screw driver is used, the current control unit adjusts the current of the axial bearing stator 4, the axial bearing stator 4 generates downward attraction force, namely axial electromagnetic force, on the first screw 7 according to the current, and at the moment, the weight display unit feeds back the total weight corresponding to the current, which is marked as W. The weight of the first screw 7 is W7, the weight of the thrust disc 6 is W6, the weight of the gasket 5 is W5, the weight of the transfer shaft 3 is W3, and the units of the weight W, W7, W6, W5 and W3 are all kg. The gravity coefficient is recorded as g, and the g is 9.8N/kg. If the electromagnetic force of the axial magnetic bearing is F, F is (W-W7-W6-W5-W3) g.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an axial bearing electromagnetic force testing arrangement which characterized in that: the on-line screen storage device comprises a base, weighing sensor, the switching axle, the axial bearing stator, gasket and thrust disc, base top installation weighing sensor and axial bearing stator, weighing sensor is located the axle center department of axial bearing stator, the inside bearing coil that is equipped with of axial bearing stator, axial bearing stator electricity is connected to the current control unit, weighing sensor signal connection to weight display element, the switching axle is installed to the weighing sensor top, the thrust disc is installed to the switching axle top, be equipped with the gasket between thrust disc and the switching axle, form the clearance between thrust disc and the axial bearing stator, a pedestal, weighing sensor, the switching axle, axial bearing stator and thrust disc all set up with one heart, the tang location.
2. The axial bearing electromagnetic force testing device of claim 1, wherein: the cross section of the transfer shaft is of a T-shaped structure, external threads are arranged at the bottom of the transfer shaft, and the threads at the bottom of the transfer shaft are screwed into the weighing sensor.
3. The axial bearing electromagnetic force testing device of claim 1, wherein: the thrust disc is fixedly connected to the transfer shaft through a number one of screws (7) which are uniformly distributed on 4 circumferences.
4. The axial bearing electromagnetic force testing device of claim 1, wherein: the weighing sensor is a spoke type tension pressure sensor, and the model of the weighing sensor is JLBU-1.
5. The axial bearing electromagnetic force testing device of claim 1, wherein: the model of the weight display unit is XMT 808-1.
6. The axial bearing electromagnetic force testing device of claim 1, wherein: the model of the current control unit is an EM100 type magnetic bearing controller.
7. The axial bearing electromagnetic force testing device of claim 1, wherein: the axial bearing stator is fixedly connected to the base through 6 second screws.
8. The axial bearing electromagnetic force testing device of claim 1, wherein: the weighing sensor is fixedly connected to the base through 4 third screws (9) which are uniformly distributed on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020355292.1U CN211425734U (en) | 2020-03-19 | 2020-03-19 | Axial bearing electromagnetic force testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020355292.1U CN211425734U (en) | 2020-03-19 | 2020-03-19 | Axial bearing electromagnetic force testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211425734U true CN211425734U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020355292.1U Active CN211425734U (en) | 2020-03-19 | 2020-03-19 | Axial bearing electromagnetic force testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211425734U (en) |
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2020
- 2020-03-19 CN CN202020355292.1U patent/CN211425734U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300457 Block D, No. 90, 12th Avenue, Binhai New Area Development Zone, Tianjin Patentee after: Tianjin Feixuan Technology Co.,Ltd. Address before: 300457 Block D, No. 90, 12th Avenue, Binhai New Area Development Zone, Tianjin Patentee before: TIANJIN EMAGING TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |