CN218766006U - Static test system and test bench of magnetic suspension bearing - Google Patents
Static test system and test bench of magnetic suspension bearing Download PDFInfo
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- CN218766006U CN218766006U CN202222878419.XU CN202222878419U CN218766006U CN 218766006 U CN218766006 U CN 218766006U CN 202222878419 U CN202222878419 U CN 202222878419U CN 218766006 U CN218766006 U CN 218766006U
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Abstract
The utility model provides a static test system and a test bench of a magnetic suspension bearing, which comprises a test seat, wherein one side of the test seat is provided with a stator of the magnetic suspension bearing, a rotor of the magnetic suspension bearing passes through the test seat, the other side of the test seat is uniformly and annularly provided and fixed with a plurality of force measuring arm fixing seats by taking the rotor as a center, one end of the force measuring arm fixing seat close to the rotor is provided with a guide groove, and a force measuring arm connector is connected in the guide groove in a sliding way; one end of the force measuring arm is rotationally connected with a force measuring arm connector; the force measuring arm connecting flange is fixedly arranged on a rotor of the magnetic suspension bearing, an arc-shaped groove is formed in the periphery of the force measuring arm connecting flange corresponding to each force measuring arm, and the other end of each force measuring arm is inserted into the arc-shaped groove and is rotationally connected with the side wall of the force measuring arm connecting flange; and the force measuring arm is inserted into the end part of the arc-shaped groove and is semicircular, and a resistance strain gauge is fixed at the end part of the force measuring arm. The utility model discloses simple structure just can test verification to bearing and the structure of design before magnetic suspension bearing accomplishes the whole assembly.
Description
Technical Field
The utility model relates to a magnetic suspension bearing correlation technique field, concretely relates to magnetic suspension bearing's static test system and testboard.
Background
Small motors are the most common form of converting electrical energy into mechanical energy and have wide application in the household and industrial fields. The traditional motor mainly comprises a motor stator part, a motor rotor part, a rotor supporting bearing and a machine shell part, wherein the motor stator part and the motor rotor part are connected through a mechanical bearing or are in mechanical contact, so that mechanical friction exists in the motion process of an electronic rotor. Mechanical friction can reduce the rotational speed of rotor to a certain extent, and mechanical friction can produce noise, wearing and tearing component, production of heat and cause other negative problems simultaneously, finally shortens motor life, consequently, in order to realize the super high rotational speed operation and the long-life of equipment, clean not have the oil and must adopt non-contact support mode, namely magnetic suspension support mode in the motor.
In the prior art, for research, design and production of a magnetic bearing, various parameter indexes of the magnetic bearing need to be tested and analyzed, and the production and use safety can be ensured only if the magnetic bearing with various parameters reaching the standard is used. However, in the prior art at home and abroad, the existing static test detection method mainly adopts displacement detection, and reads data on a rotary or movable part with a visual scale in a mechanical transmission mode, so that the method has a plurality of defects: 1. the mechanical transmission precision is low, and the detection data of the displacement is damaged due to the friction in the transmission process. Errors are caused to the test results; 2. the structure is complex, the installation is complicated, the requirement on the environment is high, and the influence of increased friction force in mechanical transmission caused by dust, sundries and the like can not be generated; 3. the displacement readings are calculated by scales, and the detection precision depends on the scale precision. The continuity of data cannot be realized under the requirement of higher precision. Meanwhile, the test needs to complete the assembly of the whole system, and then the system is tested to verify the performance of the designed bearing. In this way, once other links in the system have problems, for example, after problems occur in data transmission and processing of the control system and the sensing unit, the test cannot be carried out, and equipment needs to be disassembled to check each item one by one. The magnetic suspension bearing is generally installed together with the machine body in an interference fit mode, and is complex to disassemble.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the static test system and the testboard of a magnetic suspension bearing who proposes.
In order to achieve the above object, the utility model provides a static test system of magnetic suspension bearing, including test seat, dynamometry arm fixing base, dynamometry arm connector, dynamometry arm flange and resistance strain gauge, install the stator of magnetic suspension bearing in test seat one side, the rotor of magnetic suspension bearing passes the test seat, and the test seat opposite side uses the rotor as the even ring of center and is fixed with a plurality of the dynamometry arm fixing base, in the dynamometry arm fixing base is close to the one end of rotor has seted up the guide slot, dynamometry arm connector sliding connection in the guide slot; one end of the force measuring arm is rotatably connected with the force measuring arm connector; the force measuring arm connecting flange is fixedly arranged on a rotor of the magnetic suspension bearing, an arc-shaped groove is formed in the periphery of the force measuring arm connecting flange corresponding to each force measuring arm, and the other end of each force measuring arm is inserted into the arc-shaped groove and is rotationally connected with the side wall of the force measuring arm connecting flange; and the force measuring arm is inserted into the end part of the arc-shaped groove and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
As the utility model discloses an preferably set up, at each adjusting bolt is installed to the top screw thread of measuring arm fixing base, the adjusting bolt tip is installed in the setting and is in the threaded hole of measuring arm connector tip.
As a preferred arrangement of the invention, the orientation of the resistance strain gauge is parallel to the centre line of symmetry of the force measuring arm.
As the preferred arrangement of the utility model, the resistance strain gauge is installed at the central symmetry line of the force measuring arm; or the resistance strain gauges are simultaneously installed at the symmetrical positions on the two sides of the central symmetry line of the force measuring arm.
As the utility model discloses an it is preferred to set up, install simultaneously at the front or the back of measuring force arm mutual symmetry the resistance strain gauge.
As an optimized arrangement of the present invention, two mutually orthogonal displacement sensors for measuring the radial plane displacement thereof are integrated in the stator of the magnetic suspension bearing.
As the utility model discloses a preferred setting, each resistance strain gauge constitutes the bridge circuit of wheatstone 1/4 bridge, half-bridge or full-bridge form.
In order to achieve the above object, the utility model also provides a magnetic suspension bearing's static test bench, including the base be provided with magnetic suspension bearing's static test system on one side of the base, magnetic suspension bearing's static test system includes test seat, dynamometry arm fixing base, dynamometry arm connector, dynamometry arm flange and resistance strain gauge, the stator of magnetic suspension bearing is installed through the installation department in test seat one side, and magnetic suspension bearing's rotor passes the test seat, and connect the joint bearing who sets up at the base opposite side, and the test seat opposite side uses the rotor as the center to be equipped with a plurality of the dynamometry arm fixing base evenly encircles, has seted up the guide slot in the one end that dynamometry arm fixing base is close to the rotor, and dynamometry arm connector sliding connection is in the guide slot; one end of the force measuring arm is rotationally connected with the force measuring arm connector; the force measuring arm connecting flange is fixedly arranged on a rotor of the magnetic suspension bearing, an arc-shaped groove is formed in the periphery of the force measuring arm connecting flange corresponding to each force measuring arm, and the other end of each force measuring arm is inserted into the arc-shaped groove and is rotationally connected with the side wall of the force measuring arm connecting flange; and the force measuring arm is inserted into the end part of the arc-shaped groove and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
As the preferred arrangement of the utility model, the mounting part comprises a bearing adapting ring arranged on one side of the test seat and magnetic suspension bearing plane position adjusting bolts uniformly arranged on the periphery of the bearing adapting ring; and the stator of the magnetic suspension bearing is arranged on the inner ring of the bearing adapting ring, and the peripheral surface of the stator is abutted against the end part of the adjusting bolt of the plane position of the magnetic suspension bearing.
As the utility model discloses an optimized setting bearing adaptation circle tip neighboring has still processed the through-hole, warp the through-hole is installed bearing adaptation circle pressure spring and housing screw will bearing adaptation circle is fixed on the test seat.
The utility model has the advantages that:
(1) The utility model provides a static test system and a test board of a magnetic suspension bearing, which are used for realizing the static radial detection of the magnetic suspension bearing, the structure is simple, and the designed bearing and structure can be tested and verified before the magnetic suspension bearing is integrally assembled;
(2) The electromagnetic force measurement is realized through a designed force measuring arm connecting flange and a peripheral resistance strain gauge, a bearing rotor is fixedly connected with the force measuring arm connecting flange in the working process, when the rotor of the magnetic suspension bearing deviates in a magnetic field position (in a single X, Y or XY direction), the bearing rotor is unbalanced in stress, the deformation of the force measuring arm surface resistance strain gauge connected with the force measuring arm connecting flange can be caused, and at the moment, the magnetic field force applied to the bearing can be obtained according to the strain generated by the measuring resistance strain gauge.
The method for measuring the resistance strain gauge comprises the steps that the resistance strain gauge is formed into a Wheatstone 1/4 bridge, half bridge or full bridge form, the output voltage of a bridge circuit after the resistance strain gauge is subjected to strain is measured, the strain generated by the resistance strain gauge is obtained according to the relation between the output voltage of the bridge circuit and the strain, the stress condition of the magnetic suspension bearing is finally obtained according to the relation between the strain and an external force, and the displacement rigidity of the bearing is obtained according to the relation between the external force and the displacement. By changing the external dimensions of the bearing adapting ring and the force measuring arm connecting flange, the radial static test of the magnetic suspension bearings with different dimensions can be realized.
(3) The utility model discloses but two radial orthogonal component forces of independent measurement magnetic suspension bearing need not the decoupling zero, greatly improve the measurement accuracy of system.
(4) The displacement detection sensor is integrated in the stator, so that the structure is compact, the integration is realized, and the size is miniaturized.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a static test board of a magnetic suspension bearing according to the present invention;
fig. 2 is a schematic structural diagram of a static test system of a magnetic suspension bearing according to the present invention;
fig. 3 is an enlarged view of a in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, the utility model provides a static test system of magnetic suspension bearing, including test seat 1, dynamometry arm fixing base 2, dynamometry arm connector 3, dynamometry arm 4, dynamometry arm flange 5 and resistance strain gauge, install magnetic suspension bearing's stator 6 on one side of the test seat 1, magnetic suspension bearing's rotor 7 passes through the test seat 1, and the opposite side of the test seat 1 uses the rotor 7 as the center even ring to be fixed with a plurality of the dynamometry arm fixing base 2, in dynamometry arm fixing base 2 is close to the one end of rotor 7 has seted up guide slot 8, dynamometry arm connector 3 sliding connection in the guide slot 8; one end of the force measuring arm 4 is rotatably connected with the force measuring arm connector 3; the force measuring arm connecting flange 5 is fixedly installed on a rotor 7 of the magnetic suspension bearing, an arc-shaped groove 9 is formed in the periphery of the force measuring arm connecting flange 5 corresponding to each force measuring arm 4, and the other end of each force measuring arm 4 is inserted into the arc-shaped groove 9 and is rotatably connected with the side wall of the force measuring arm connecting flange 5; and the force measuring arm 4 is inserted into the end part of the arc-shaped groove 9 and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
As the utility model discloses preferred setting, further, at each adjusting bolt 10 is installed to the top screw thread of measuring arm fixing base 2, adjusting bolt 10 tip is installed in the setting and is in the threaded hole of the 3 tip of measuring arm connector.
As a preferred arrangement of the embodiment of the present invention, further, the orientation of the resistance strain gauge is parallel to the center line of symmetry of the force measuring arm 4. Further, the resistance strain gauge can be installed at the central symmetry line of the force measuring arm 4; or the resistance strain gauges are simultaneously installed at symmetrical positions on two sides of the central symmetry line of the force measuring arm 4. In a preferred embodiment of the present invention, the resistive strain gauges can also be mounted on the front or back sides of the load cells 4 that are symmetrical to each other.
As a preferred arrangement of the embodiment of the present invention, further, two mutually orthogonal displacement sensors for measuring the radial plane displacement thereof are integrated in the stator 6 of the magnetic suspension bearing.
As the preferred setting of the embodiment of the present invention, further, each resistance strain gauge constitutes a bridge circuit in the form of a wheatstone 1/4 bridge, half bridge or full bridge.
The embodiment of the utility model provides a still provide a magnetic suspension bearing's static test bench, including base 11 one side is provided with magnetic suspension bearing's static test system, magnetic suspension bearing's static test system includes test seat 1, dynamometry arm fixing base 2, dynamometry arm connector 3, dynamometry arm 4, dynamometry arm flange 5 and resistance strain gauge, the stator 6 of magnetic suspension bearing is installed through the installation department in test seat 1 one side, and magnetic suspension bearing's rotor 7 passes the test seat, and connect the joint bearing 12 who sets up at the base 11 opposite side, and the test seat 1 opposite side uses the rotor 7 as the even ring of center to establish be fixed with a plurality of dynamometry arm fixing base 2, has seted up guide slot 8 in dynamometry arm fixing base 2 is close to the one end of rotor 7, and dynamometry arm connector 3 sliding connection is in guide slot 8; one end of the force measuring arm 4 is rotatably connected with the force measuring arm connector 3; the force measuring arm connecting flange 5 is fixedly installed on a rotor 7 of the magnetic suspension bearing, an arc-shaped groove 9 is formed in the periphery of the force measuring arm connecting flange 5 corresponding to each force measuring arm 4, and the other end of each force measuring arm 4 is inserted into the arc-shaped groove 9 and is rotatably connected with the side wall of the force measuring arm connecting flange 5; and the force measuring arm 4 is inserted into the end part of the arc-shaped groove 9 and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
As a preferable arrangement of the embodiment of the present invention, further, the mounting portion includes a bearing adapter ring 13 disposed on one side of the test socket 1, and magnetic suspension bearing plane position adjusting bolts 14 uniformly disposed on the periphery of the bearing adapter ring 13; and a stator 6 of a magnetic suspension bearing is arranged on the inner ring of the bearing adapting ring 13, and the outer peripheral surface of the stator 6 is abutted against the end part of a magnetic suspension bearing plane position adjusting bolt 14.
As the embodiment of the utility model provides a preferred setting, furtherly bearing adaptation circle 13 tip neighboring has still processed the through-hole, warp the through-hole is installed bearing adaptation circle pressure spring 15 and housing screw 16 and will bearing adaptation circle 13 is fixed on test seat 1.
During the working process, the rotor 7 of the magnetic suspension bearing is fixedly connected with the force measuring arm connecting flange 5, when the rotor shifts in the magnetic field position (in the single X, Y or XY direction), the stress on the bearing rotor is unbalanced, which can cause the deformation of the surface resistance strain gauge of the force measuring arm 4 connected with the force measuring arm connecting flange 5, and at the moment, the magnetic field force applied to the bearing can be obtained according to the strain generated by the measurement resistance strain gauge.
The method for measuring the resistance strain gauge comprises the steps that the resistance strain gauge is formed into a Wheatstone 1/4 bridge, half bridge or full bridge mode, the output voltage of a bridge circuit after the resistance strain gauge is strained is measured, the strain generated by the resistance strain gauge is obtained according to the relation between the output voltage of the bridge circuit and the strain, the stress condition of the magnetic suspension bearing is finally obtained according to the relation between the strain and an external force, and the displacement rigidity of the bearing is obtained according to the relation between the external force and the displacement. By changing the external dimensions of the bearing adapting ring 13 and the force measuring arm connecting flange 5, the radial static test of the magnetic suspension bearings with different dimensions can be realized.
The mounting part can realize two functions, one is to adjust the rotor 7 and the stator 6 of the magnetic suspension bearing to be coaxial, and the other is to change the position of the stator 6 of the magnetic suspension bearing to generate unbalanced force to the rotor 7 of the magnetic suspension bearing. The method for adjusting the rotor 7 and the stator 6 of the magnetic bearing to the coaxial position is as follows: the adjusting bolts 10 at the tops of the force measuring arm 4 fixing seats are rotated, all the force measuring arm connectors 3 are adjusted to the same positions relative to the force measuring arm fixing seats 2, so that the force measuring arm connectors 3, the force measuring arms 4 and the resistance strain gauges on the force measuring arms are in a straightened state, and errors in tests are avoided. At this time, the position of the stator is adjusted, so that the bridge circuit formed by the resistance strain gauge on each force measuring arm 4 outputs the same signal, and at this time, the rotor and the stator can be adjusted to be in the coaxial position.
The method for changing the position of the stator of the magnetic bearing comprises the following steps: two mutually orthogonal displacement sensors for measuring the radial plane displacement are integrated in the stator 6 of the magnetic suspension bearing and used for detecting the distance of the rotor from the axis to output the offset. The stator 6 is externally provided with a bearing adapting ring 13, 4 magnetic suspension bearing plane position adjusting bolts 14 are uniformly and symmetrically arranged in the vertical and horizontal directions of the radial circumference of the bearing adapting ring 13, and besides, a plurality of adjusting bolts can be arranged between two adjacent magnetic suspension bearing plane position adjusting bolts 14 at the same interval and at the same angle. The radial circumference of the bearing adapting ring 13 is also provided with a through hole, and the bearing adapting ring 13 is fixed on the test seat 1 through a compression spring 15 and a compression screw 16 of the bearing adapting ring 13. When the position of the stator 6 on the radial plane is adjusted, all the fixing pieces are unscrewed to a certain degree, and different adjusting screws are rotated, so that the adjustment of the position of the magnetic suspension bearing stator on the radial plane can be realized.
After the magnetic suspension bearing rotor 7 and the stator 6 are adjusted to be in the same axial position, the position of the magnetic suspension bearing stator is deviated in order to measure the displacement rigidity of the bearing rotor. By integrating with the displacement sensor inside the stator, an accurate adjustment of the stator position can be achieved. The adjustment displacement ranges in the X and Y directions are both 0 mm-0.5 +/-0.1 mm. And after the required position is adjusted, all the fixing pieces are screwed down and fixed. At the moment, the stress state of the bearing rotor is unbalanced, the stress condition of the bearing rotor is recorded by combining a static test system of the magnetic suspension bearing, and the displacement rigidity of the magnetic suspension bearing rotor can be obtained according to the detected displacement of the stator and the stress of the rotor of the magnetic suspension bearing, so that the displacement rigidity test of the bearing rotor is realized.
In summary, (1) the utility model provides a static test system and a test board of magnetic suspension bearing for realize the static radial detection of magnetic suspension bearing, this structure simple structure, just can test the verification to bearing and structure that design before magnetic suspension bearing accomplishes the whole assembly;
(2) The electromagnetic force measurement is realized through a designed force measuring arm connecting flange and a peripheral resistance strain gauge, a bearing rotor is fixedly connected with the force measuring arm connecting flange in the working process, and the bearing rotor is unbalanced in stress when the rotor of the magnetic suspension bearing deviates in the magnetic field position (in the independent X, Y or XY direction), so that the force measuring arm surface resistance strain gauge connected with the force measuring arm connecting flange is deformed, and at the moment, the magnetic field force applied to the bearing can be obtained according to the strain generated by the measuring resistance strain gauge.
The method for measuring the resistance strain gauge comprises the steps that the resistance strain gauge is formed into a Wheatstone 1/4 bridge, half bridge or full bridge form, the output voltage of a bridge circuit after the resistance strain gauge is subjected to strain is measured, the strain generated by the resistance strain gauge is obtained according to the relation between the output voltage of the bridge circuit and the strain, the stress condition of the magnetic suspension bearing is finally obtained according to the relation between the strain and an external force, and the displacement rigidity of the bearing is obtained according to the relation between the external force and the displacement. By changing the external dimensions of the bearing adapting ring and the force measuring arm connecting flange, the radial static test of the magnetic suspension bearings with different dimensions can be realized.
(3) The utility model discloses but two radial orthogonal component forces of independent measurement magnetic suspension bearing need not the decoupling zero, greatly improve the measurement accuracy of system.
(4) The displacement detection sensor is integrated in the stator, so that the structure is compact, the integration is realized, and the size is miniaturized.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (10)
1. A static test system of a magnetic suspension bearing is characterized by comprising a test seat, force measuring arm fixing seats, force measuring arm connectors, force measuring arms, force measuring arm connecting flanges and resistance strain gauges, wherein a stator of the magnetic suspension bearing is installed on one side of the test seat, a rotor of the magnetic suspension bearing penetrates through the test seat, a plurality of force measuring arm fixing seats are uniformly and annularly fixed on the other side of the test seat by taking the rotor as a center, one ends, close to the rotor, of the force measuring arm fixing seats are provided with guide grooves, and the force measuring arm connectors are connected in the guide grooves in a sliding mode; one end of the force measuring arm is rotationally connected with the force measuring arm connector; the force measuring arm connecting flange is fixedly arranged on a rotor of the magnetic suspension bearing, an arc-shaped groove is formed in the periphery of the force measuring arm connecting flange corresponding to each force measuring arm, and the other end of each force measuring arm is inserted into the arc-shaped groove and is rotationally connected with the side wall of the force measuring arm connecting flange; and the force measuring arm is inserted into the end part of the arc-shaped groove and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
2. The system for static testing of magnetic suspension bearings of claim 1, wherein an adjusting bolt is threadedly mounted on the top of each force arm fixing base, the end of the adjusting bolt being mounted in a threaded hole provided in the end of the force arm attachment head.
3. The static test system for magnetic bearings according to claim 1, characterized in that the resistive strain gauges are oriented parallel to the centre line of symmetry of the load arm.
4. The static test system for magnetic suspension bearings according to claim 1, characterized in that the resistive strain gauge is mounted at the central symmetry line of the force-measuring arm; or the resistance strain gauges are simultaneously installed at the symmetrical positions on the two sides of the central symmetry line of the force measuring arm.
5. The static test system for magnetic suspension bearings according to claim 1, characterized in that the resistive strain gauges are mounted simultaneously on the front or back of the load arm, which are symmetrical to each other.
6. The static test system of magnetic bearings according to claim 1, characterized in that two mutually orthogonal displacement sensors for measuring the radial plane displacement thereof are integrated in the stator of the magnetic bearing.
7. The static test system for magnetic suspension bearings according to claim 1, characterized in that each of the resistive strain gauges constitutes a bridge circuit in the form of a wheatstone 1/4 bridge, half bridge or full bridge.
8. A static test board of a magnetic suspension bearing comprises a base and is characterized in that a static test system of the magnetic suspension bearing is arranged on one side of the base and comprises a test seat, force measuring arm fixing seats, force measuring arm connectors, force measuring arms, force measuring arm connecting flanges and resistance strain gauges, a stator of the magnetic suspension bearing is installed on one side of the test seat through an installation part, a rotor of the magnetic suspension bearing penetrates through the test seat and is connected with a joint bearing arranged on the other side of the base, the force measuring arm fixing seats are uniformly and annularly arranged on the other side of the test seat by taking the rotor as a center, a guide groove is formed in one end, close to the rotor, of the force measuring arm fixing seats, and the force measuring arm connectors are connected in the guide groove in a sliding mode; one end of the force measuring arm is rotationally connected with the force measuring arm connector; the force measuring arm connecting flange is fixedly arranged on a rotor of the magnetic suspension bearing, an arc-shaped groove is formed in the periphery of the force measuring arm connecting flange corresponding to each force measuring arm, and the other end of each force measuring arm is inserted into the arc-shaped groove and is rotationally connected with the side wall of the force measuring arm connecting flange; and the force measuring arm is inserted into the end part of the arc-shaped groove and is semicircular, and the end part of the force measuring arm is fixed with the resistance strain gauge.
9. The static test bench of magnetic suspension bearings as claimed in claim 8, wherein said mounting portion includes a bearing adapter ring disposed at one side of said test base, at least 4 magnetic suspension bearing plane position adjusting bolts are uniformly disposed on the outer circumference of said bearing adapter ring; and the stator of the magnetic suspension bearing is arranged on the inner ring of the bearing adapting ring, and the peripheral surface of the stator is abutted against the end part of the adjusting bolt of the plane position of the magnetic suspension bearing.
10. The static test bench for magnetic suspension bearings according to claim 9, wherein a through hole is further processed on the peripheral edge of the end of the bearing adapter ring, and a bearing adapter ring compression spring and a compression screw are installed through the through hole to fix the bearing adapter ring on the test base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222878419.XU CN218766006U (en) | 2022-10-31 | 2022-10-31 | Static test system and test bench of magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222878419.XU CN218766006U (en) | 2022-10-31 | 2022-10-31 | Static test system and test bench of magnetic suspension bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218766006U true CN218766006U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222878419.XU Active CN218766006U (en) | 2022-10-31 | 2022-10-31 | Static test system and test bench of magnetic suspension bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN218766006U (en) |
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2022
- 2022-10-31 CN CN202222878419.XU patent/CN218766006U/en active Active
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