High-rotating-speed motor test bed

Abstract

The invention relates to the technical field of motor test, and discloses a high-rotating-speed motor test bench, which comprises a test bench main body, a balance mechanism is clamped on the outer surface of the test bench main body, the balance mechanism comprises a screw rod, the outer surface of the screw rod is in threaded connection with a V-shaped upright column I and a V-shaped upright column II, and the V-shaped upright column I and the V-shaped upright column II are in threaded connection. A rotating shaft is fixedly connected to the interior of the first V-shaped stand column, a rolling wheel is rotatably connected to the outer surface of the rotating shaft, the first V-shaped stand column, the second V-shaped stand column and the rolling wheel are used for positioning a motor rotor, and the coaxial device is fixedly connected with the top of the screw rod. The dynamic balance is accurately tested; accurate positioning of the rotor is realized by using the centering mechanism, and the test accuracy is improved; the protection mechanism can adjust the temperature, assist heat dissipation, guarantee reliable testing in different temperature states, isolate external interference in a totally closed manner, prevent dust when not in use, and guarantee the testing precision and the service life of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of motor testing, and particularly to a high-speed motor test bench. Background Art

[0002] In the process of the rapid development of modern industry and technology, the application fields of high-speed motors are constantly expanding, from the drive systems of new energy vehicles to high-speed air compressors, high-speed magnetic levitation motors, etc. Their performance directly affects the overall efficiency and reliability of related equipment. For high-speed motors with 25,000 RPM, the balance state of the rotor is a key factor determining the running stability, vibration level, and service life of the motor.

[0003] The patent application with the application number CN201910489363.9 discloses a multi-degree-of-freedom spherical motor test bench, including a mounting base and a roller I, a roller II, a dynamometer, a loading component, and a measuring component mounted on the mounting base. The roller II and the dynamometer are respectively located on the left and right sides of the roller I and are in transmission cooperation with the roller I. The roller I and the roller II are in transmission cooperation through a steering component so that their rotation central axes are perpendicular to each other. The loading component includes a loading frame and a multi-degree-of-freedom spherical motor for loading the surface of the roller I or the roller II.

[0004] However, this patent also has the following deficiencies. That is, the balance test of the high-speed motor rotor is easily interfered by external factors, and false unbalance amounts are generated due to rotor positioning deviation; temperature changes and airflows cause the test results to be distorted, making it difficult to accurately reflect the actual balance state of the rotor. In view of this situation, a high-speed motor test bench is specifically proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-speed motor test bench to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A high-speed motor test bench, including a test bench main body, and a balance mechanism is clamped on the outer surface of the test bench main body. The balance mechanism includes: A screw rod, on the outer surface of which a V-shaped column I and a V-shaped column II are threadedly connected. A rotating shaft is fixedly connected inside the V-shaped column I, and a roller is rotatably connected to the outer surface of the rotating shaft. The V-shaped column I, the V-shaped column II, and the roller are used for positioning the motor rotor. A coaxial device, which is fixedly connected to the top of the screw rod, and the coaxial device realizes synchronous driving of the coaxial rotation of the screw rod through a toothed synchronous belt transmission mechanism. The first telescopic baffle, there are three groups of the first telescopic baffle, the first telescopic baffle is fixedly connected to the outer surface of the first V-shaped column, the first telescopic baffle is fixedly connected to the outer surface of the second V-shaped column, and the first telescopic baffle is used to protect the screw rod.

[0007] According to the above technical solution, a coupling testing device is clamped on the outer surface of the test bench main body, a load motor is clamped on the outer surface of the test bench main body, the coupling testing device is fixedly connected to the load motor, and a centering mechanism and a protection mechanism are clamped inside the test bench main body. The coupling testing device and the load motor are used to test the motor rotor.

[0008] According to the above technical solution, the balance mechanism further includes a first clamping block, a box body frame is fixedly connected to the outer surface of the first clamping block, a through-hole shell is fixedly connected to the outer surface of the box body frame, and a first box body is fixedly connected to the outer surface of the box body frame. The first box body is used to protect the coaxial device.

[0009] According to the above technical solution, the box body frame is rotatably connected to the screw rod, the upper surface of the first telescopic baffle is fixedly connected to the lower surface of the box body frame, the lower surface of the box body frame is in contact with the upper surface of the test bench main body, and the V shapes of the first V-shaped column and the second V-shaped column are used to assist in positioning the motor rotor.

[0010] According to the above technical solution, the centering mechanism includes a second clamping block, the second clamping block is clamped to the test bench main body, an arc-shaped frame is fixedly connected to the outer surface of the second clamping block, a first threaded column is threadedly connected inside the second clamping block, a rotating component is fixedly connected to the upper surface of the arc-shaped frame, a hydraulic pump is fixedly connected to the outer surface of the rotating component, an arc-shaped plate is fixedly connected to the outer surface of the hydraulic pump, and a convex point is fixedly connected to the outer surface of the arc-shaped plate. The arc-shaped plate and the convex point are used to position the motor rotor.

[0011] According to the above technical solution, the centering mechanism includes a clamping ring, the clamping ring is slidably connected to the hydraulic pump, a through-hole column is rotatably connected to the outer surface of the clamping ring, and a second threaded column is threadedly connected inside the through-hole column. The second threaded column is used to adjust the angle of the hydraulic pump.

[0012] According to the above technical solution, a fixing nut is arranged on the outer surface of the first threaded column, limiting plates are arranged at both ends of the second threaded column, the arc-shaped opening of the arc-shaped plate is the same as the arc-shaped opening of the arc-shaped frame, the fixing nut of the first threaded column is used to rotate the first threaded column, and the rotating component is used to rotate the hydraulic pump.

[0013] According to the above technical solution, the protection mechanism includes a second box body, which is clamped to the test bench main body. A third clamping block is clamped inside the second box body. The outer surface of the third clamping block is fixedly connected to a third box body. The outer surface of the third box body is in contact with the outer surface of the second box body. The second box body and the third box body are used to protect the test bench main body.

[0014] According to the above technical solution, the protection mechanism further includes a telescopic baffle II. The outer surface of the telescopic baffle II is fixedly connected to a fourth clamping block. The outer surface of the fourth clamping block is fixedly connected to a U-shaped frame. An inclined plate is fixedly connected inside the U-shaped frame. The U-shaped frame and the inclined plate are used to dissipate heat from the motor rotor.

[0015] According to the above technical solution, a clamping groove is provided inside the test bench main body. The outer surface of the test bench main body is in contact with the lower surfaces of the second box body and the third box body. An observation window is provided at the top of the second box body. A clamping groove is provided on the side surface of the second box body. The clamping groove on the side surface of the second box body is clamped with the fourth clamping block. The clamping groove inside the test bench main body is used to limit the second box body and the third box body.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. For this high-speed motor test bench frame, by setting a balancing mechanism, the high-precision roller is rotationally connected to the rotating shaft of the high-speed motor rotor, ensuring that the rotor main shaft can rotate freely, reducing the influence of frictional resistance on the test. The coupling test device can effectively limit the axial and radial displacements of the rotor, ensuring the stability and accuracy of the test. During the dynamic balance test, by coaxially adjusting the clamping force of the roller, the load states under different working conditions are simulated, and the vibration data is monitored in real time by the sensor, thereby realizing the precise test and adjustment of the dynamic balance of the high-speed motor rotor.

[0017] 2. For this high-speed motor test bench frame, by setting an alignment mechanism, the high-speed motor rotor can be effectively assisted in alignment, automatically adjusting the position and clamping force of the alignment fixture. Whether it is a small and precise rotor or a large and heavy-duty rotor, it can be accurately positioned to ensure that the rotor axis is highly coincident with the axis of the test equipment, avoiding interference from installation eccentricity on the static balance and dynamic balance test results, and improving the accuracy and reliability of the test data.

[0018] 3. For this high-speed motor test bench frame, by setting a protection mechanism, the static balance and dynamic balance tests of the high-speed motor rotor under different temperature states can be realized, and the internal temperature can be accurately adjusted to simulate high and low temperature environments. When the rotor temperature rises during the test, the heat is dissipated rapidly by air cooling to maintain the rotor running at an appropriate temperature, effectively avoiding the influence of temperature changes on the rotor balance state and ensuring the accuracy and reliability of the test results.

[0019] 4. This high-speed motor test bench can effectively isolate the interference of the external environment on the static and dynamic balance tests of the high-speed motor rotor by setting up a protection mechanism. The protection mechanism adopts a fully enclosed design and has good dust-proof, moisture-proof, and electromagnetic interference-proof performance. It can shield external airflows, vibrations, and electromagnetic signals to ensure a stable test environment. The box structure can be used as the conventional protection of the test bench. Its sealed design can prevent dust and debris from entering, keep the interior clean when the equipment is idle, and avoid affecting the test accuracy and the service life of the equipment due to external pollutants adhering to the rotor or test components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the main structure of the present invention; Figure 2 is a sectional view of the structure of the main body of the present invention; Figure 3 is a sectional view of the structure of the balance mechanism of the present invention; Figure 4 is a schematic diagram of the partial structure of the balance mechanism of the present invention; Figure 5 is a sectional view of the structure of the centering mechanism of the present invention; Figure 6 is a schematic diagram of the partial structure of the centering mechanism of the present invention; Figure 7 is a sectional view of the structure of the protection mechanism of the present invention; Figure 8 is a partial sectional view of the structure of the protection mechanism of the present invention.

[0021] In the figure: 1. Test bench main body; 2. Coupling test device; 3. Balance mechanism; 301. First clamping block; 302. Box frame; 303. Through-hole shell; 304. Screw; 305. V-shaped column 1; 306. V-shaped column 2; 307. Rotating shaft; 308. Roller; 309. Coaxial device; 310. First box; 311. Telescopic baffle 1; 4. Load motor; 5. Centering mechanism; 501. Arc-shaped frame; 502. Threaded column 1; 503. Second clamping block; 504. Rotating assembly; 505. Hydraulic pump; 506. Arc-shaped plate; 507. Convex point; 508. Snap ring; 509. Through-hole column; 510. Threaded column 2; 6. Protection mechanism; 601. Second box; 602. Third clamping block; 603. Third box; 604. Telescopic baffle 2; 605. Fourth clamping block; 606. U-shaped frame; 607. Inclined plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0024] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1: Refer to Figures 1-6 , the present invention provides a technical solution: a high-speed motor test bench, including a test bench main body 1, a balance mechanism 3 is clamped on the outer surface of the test bench main body 1, and the balance mechanism 3 includes: A screw 304, a V-shaped column one 305 and a V-shaped column two 306 are threadedly connected to the outer surface of the screw 304. A rotating shaft 307 is fixedly connected inside the V-shaped column one 305. A roller 308 is rotatably connected to the outer surface of the rotating shaft 307. The V-shaped column one 305, the V-shaped column two 306, and the roller 308 are used for positioning the motor rotor; A coaxial device 309, the coaxial device 309 is fixedly connected to the top of the screw 304, and the coaxial device 309 realizes the coaxial rotation synchronous drive of the screw 304 through a toothed synchronous belt transmission mechanism; Three telescopic baffles one 311 are provided. The telescopic baffles one 311 are fixedly connected to the outer surface of the V-shaped column one 305 and the outer surface of the V-shaped column two 306. The telescopic baffles one 311 are used for protecting the screw 304.

[0026] A coupling test device 2 is clamped on the outer surface of the test bench main body 1, a load motor 4 is clamped on the outer surface of the test bench main body 1, the coupling test device 2 is fixedly connected to the load motor 4, and a centering mechanism 5 and a protection mechanism 6 are clamped inside the test bench main body 1. The coupling test device 2 and the load motor 4 are used for testing the motor rotor.

[0027] The balancing mechanism 3 further includes a first clamping block 301. The outer surface of the first clamping block 301 is fixedly connected to a box frame 302. The outer surface of the box frame 302 is fixedly connected to a through-hole shell 303. The outer surface of the box frame 302 is fixedly connected to a first box body 310, which is used to protect the coaxial device 309. The box frame 302 is rotatably connected to a screw 304. The upper surface of the telescopic baffle 311 is fixedly connected to the lower surface of the box frame 302. The lower surface of the box frame 302 is in contact with the upper surface of the test bench main body 1. The V-shaped columns 305 and 306 are used to assist in positioning the motor rotor. When the screw 304 rotates to drive the V-shaped columns 305 and 306 to move, the threads on the surface of the screw 304 cause the V-shaped columns 305 and 306 to move relative to each other, so that the rollers 308 position the rotor spindle. When the screw 304 drives the V-shaped columns 305 and 306 to move, the telescopic baffle 311 protects the movement of the V-shaped columns 305 and 306, ensuring the accuracy of synchronous rotation.

[0028] When performing static and dynamic balance tests on a high-speed motor rotor and positioning the rotor spindle, different positioning methods will affect the static and dynamic balance tests, causing data deviation in the static and dynamic balance. Therefore, the rotor is positioned through the balancing mechanism 3 to ensure the accuracy of the static and dynamic balance test data.

[0029] The centering mechanism 5 includes a second clamping block 503, which is clamped to the test bench main body 1. The outer surface of the second clamping block 503 is fixedly connected to an arc-shaped frame 501. The internal thread of the second clamping block 503 is connected to a first threaded column 502. The upper surface of the arc-shaped frame 501 is fixedly connected to a rotating assembly 504. The outer surface of the rotating assembly 504 is fixedly connected to a hydraulic pump 505. The outer surface of the hydraulic pump 505 is fixedly connected to an arc-shaped plate 506. The outer surface of the arc-shaped plate 506 is fixedly connected to a convex point 507. The arc-shaped plate 506 and the convex point 507 are used to position the motor rotor.

[0030] The centering mechanism 5 includes a clamping ring 508, which is slidably connected to the hydraulic pump 505. The outer surface of the clamping ring 508 is rotatably connected to a through-hole column 509. The internal thread of the through-hole column 509 is connected to a second threaded column 510, which is used to adjust the angle of the hydraulic pump 505.

[0031] A fixing nut is provided on the outer surface of the first threaded post 502. Limit plates are provided at both ends of the second threaded post 510. The arc-shaped opening of the arc-shaped plate 506 is the same as that of the arc-shaped frame 501. The fixing nut of the first threaded post 502 is used to rotate the first threaded post 502, and the rotating assembly 504 is used to rotate the hydraulic pump 505. After the distance between the arc-shaped frame 501 and the symmetrically arranged arc-shaped frame 501 is adjusted by the first threaded post 502, the arc-shaped frame 501 and the symmetrically arranged arc-shaped frame 501 are fixed in position by a bolt group, so as to prevent the centering mechanism 5 from affecting the rotor during the static and dynamic balance tests.

[0032] When positioning the high-speed motor rotor, if the main shaft of the rotor is not assisted, it will affect the accuracy of the main shaft positioning and centering, thereby affecting the static and dynamic balance tests of the rotor. Therefore, the centering mechanism 5 is used to assist in positioning and centering the main shaft of the rotor.

[0033] The working principle of this embodiment is as follows: When using this high-speed motor test bench, during the static balance test of the high-speed motor rotor, the fixing nut of the first threaded post 502 drives the first threaded post 502 to rotate, adjusting the positions of the arc-shaped frame 501 and the symmetrically arranged arc-shaped frame 501, thereby adjusting the position of the arc-shaped plate 506. Then, the main shaft of the rotor is placed on the surface of the arc-shaped plate 506, and the convex point 507 makes point contact with the main shaft. At the same time, the hydraulic pump 505 pushes the arc-shaped plate 506 upward, the second threaded post 510 rotates, the through-hole column 509 moves inward, and the snap ring 508 slides on the outer surface of the hydraulic pump 505 through the inward contraction of the through-hole column 509, so that the hydraulic pump 505 rotates on the outer surface of the rotating assembly 504. Thus, while the hydraulic pump 505 pushes the arc-shaped plate 506 upward, the arc-shaped plate 506 is squeezed and contracted inward, so that the convex point 507 surrounds the main shaft of the rotor to center the main shaft of the rotor. At the same time, the screw 304 rotates, and the screw 304 moves synchronously through the coaxial device 309. The V-shaped settings of the first V-shaped column 305 and the second V-shaped column 306 are used to center and position the main shaft of the rotor, and the roller 308 is used for rolling support. At this time, the static balance test of the high-speed motor rotor can be carried out. After completion, the main shaft of the rotor is connected to the coupling test device 2, and the load motor 4 applies a load to the main shaft of the rotor. The clamping degree of the roller 308 is adjusted by the screw 304, so as to carry out the dynamic balance test of the main shaft of the rotor, and the coupling test device 2 is used for recording.

[0034] Embodiment 2: Please refer to Figures 7-8, on the basis of the first embodiment, the present invention provides a technical solution: The protection mechanism 6 includes a second box body 601, the second box body 601 is clamped with the test bench main body 1, a third clamping block 602 is clamped inside the second box body 601, and a third box body 603 is fixedly connected to the outer surface of the third clamping block 602. The outer surface of the third box body 603 is in contact with the outer surface of the second box body 601. The second box body 601 and the third box body 603 are used to protect the test bench main body 1.

[0035] The protection mechanism 6 further includes a telescopic baffle two 604, a fourth clamping block 605 is fixedly connected to the outer surface of the telescopic baffle two 604, a U-shaped frame 606 is fixedly connected to the outer surface of the fourth clamping block 605, and an inclined plate 607 is fixedly connected to the inside of the U-shaped frame 606. The U-shaped frame 606 and the inclined plate 607 are used to dissipate heat from the motor rotor.

[0036] A clamping groove is opened inside the test bench main body 1. The outer surface of the test bench main body 1 is in contact with the lower surfaces of the second box body 601 and the third box body 603. An observation window is provided at the top of the second box body 601. A clamping groove is opened on the side surface of the second box body 601. The clamping groove on the side surface of the second box body 601 is clamped with the fourth clamping block 605. The clamping groove inside the test bench main body 1 is used to limit the second box body 601 and the third box body 603. The box body composed of the second box body 601 and the third box body 603 can prevent dust and moisture. And by clamping the second box body 601 and the third box body 603 with the test bench main body 1, a metal cage is formed to prevent electromagnetic interference for the internal equipment, and the air flow and temperature are isolated through the box body itself. When adjusting the U-shaped frame 606 through the fourth clamping block 605, the telescopic baffle two 604 seals the clamping groove on the side surface of the second box body 601 to ensure the protection effect.

[0037] When testing the static and dynamic balance of the high-speed motor rotor spindle, external factors such as temperature and air flow have an impact on it, so the protection mechanism 6 is used to block the influence of external factors.

[0038] The working principle of this embodiment is as follows: When using this high-speed motor test bench, after the positioning and centering of the rotor main shaft, the second box body 601 is clamped with the third box body 603, so that the second box body 601 and the third box body 603 are clamped with the test bench main body 1, thereby dustproofing, moisture-proofing, and electromagnetic-proofing the internal equipment, and isolating external factors, so as to test the static and dynamic balance of the rotor. The internal temperature can be adjusted by connecting a temperature adjustment device by isolating the external temperature, so as to conduct tests under different stabilities. The U-shaped frame 606 can be pushed to move by the fourth block 605, so as to adjust the positions of the U-shaped frame 606 and the inclined plate 607, and observe through the observation window on the top of the second box body 601, so that during the test, the part where the rotor temperature rises can dissipate heat. When the test bench is not in use, the second box body 601, the third box body 603 and the test bench main body 1 cooperate to protect the internal equipment, so as to ensure internal cleanliness and avoid affecting the test accuracy.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0040] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-speed motor test bench, comprising a test bench main body (1), wherein a balancing mechanism (3) is clamped on the outer surface of the test bench main body (1), and is characterized in that, The balance mechanism (3) includes: A screw rod (304), on the outer surface of which a first V-shaped column (305) and a second V-shaped column (306) are threadedly connected. Inside the first V-shaped column (305), a rotating shaft (307) is fixedly connected. A roller (308) is rotatably connected to the outer surface of the rotating shaft (307). The first V-shaped column (305), the second V-shaped column (306), and the roller (308) are used to position the motor rotor. A coaxial device (309), which is fixedly connected to the top of the screw rod (304). The coaxial device (309) realizes synchronous driving of the coaxial rotation of the screw rod (304) through a toothed synchronous belt drive mechanism. Three groups of telescopic baffles one (311), which are fixedly connected to the outer surface of the first V-shaped column (305) and the outer surface of the second V-shaped column (306). The telescopic baffle one (311) is used to protect the screw rod (304).

2. The high-speed motor test bench according to claim 1, characterized in that: A coupling testing device (2) is clamped on the outer surface of the test bench main body (1). A load motor (4) is clamped on the outer surface of the test bench main body (1). The coupling testing device (2) is fixedly connected to the load motor (4). A centering mechanism (5) and a protection mechanism (6) are clamped inside the test bench main body (1). The coupling testing device (2) and the load motor (4) are used to test the motor rotor.

3. The high-speed motor test bench according to claim 2, wherein: The balance mechanism (3) further includes a first block (301). A box frame (302) is fixedly connected to the outer surface of the first block (301). A through-hole shell (303) is fixedly connected to the outer surface of the box frame (302). A first box body (310) is fixedly connected to the outer surface of the box frame (302). The first box body (310) is used to protect the coaxial device (309).

4. A high-speed motor test bench according to claim 3, characterized in that: The box frame (302) is rotatably connected to the screw rod (304). The upper surface of the telescopic baffle one (311) is fixedly connected to the lower surface of the box frame (302). The lower surface of the box frame (302) is in contact with the upper surface of the test bench main body (1). The V-shape of the first V-shaped column (305) and the second V-shaped column (306) is used to assist in positioning the motor rotor.

5. The high-speed motor test bench according to claim 3, characterized in that: The centering mechanism (5) includes a second clamping block (503). The second clamping block (503) is clamped with the test bench main body (1). An arc-shaped frame (501) is fixedly connected to the outer surface of the second clamping block (503). A first threaded column (502) is threadedly connected inside the second clamping block (503). A rotating assembly (504) is fixedly connected to the upper surface of the arc-shaped frame (501). A hydraulic pump (505) is fixedly connected to the outer surface of the rotating assembly (504). An arc-shaped plate (506) is fixedly connected to the outer surface of the hydraulic pump (505). A bump (507) is fixedly connected to the outer surface of the arc-shaped plate (506). The arc-shaped plate (506) and the bump (507) are used for positioning the motor rotor.

6. The high-speed motor test bench according to claim 5, characterized in that: The centering mechanism (5) includes a clamping ring (508). The clamping ring (508) is slidably connected to the hydraulic pump (505). A through-hole column (509) is rotatably connected to the outer surface of the clamping ring (508). A second threaded column (510) is threadedly connected inside the through-hole column (509). The second threaded column (510) is used for adjusting the angle of the hydraulic pump (505).

7. A high-speed motor test bench according to claim 6, characterized in that: A fixing nut is provided on the outer surface of the first threaded column (502). Limit plates are provided at both ends of the second threaded column (510). The arc-shaped opening of the arc-shaped plate (506) is the same as that of the arc-shaped frame (501). The fixing nut of the first threaded column (502) is used for rotating the first threaded column (502). The rotating assembly (504) is used for rotating the hydraulic pump (505).

8. A high-speed motor test bench according to claim 3, characterized in that: The protection mechanism (6) includes a second box body (601). The second box body (601) is clamped with the test bench main body (1). A third clamping block (602) is clamped inside the second box body (601). A third box body (603) is fixedly connected to the outer surface of the third clamping block (602). The outer surface of the third box body (603) is in contact with the outer surface of the second box body (601). The second box body (601) and the third box body (603) are used for protecting the test bench main body (1).

9. The high-speed motor test bench according to claim 8, wherein: The protection mechanism (6) further includes a telescopic baffle two (604). A fourth clamping block (605) is fixedly connected to the outer surface of the telescopic baffle two (604). A U-shaped frame (606) is fixedly connected to the outer surface of the fourth clamping block (605). An inclined plate (607) is fixedly connected inside the U-shaped frame (606). The U-shaped frame (606) and the inclined plate (607) are used for dissipating heat from the motor rotor.

10. A high-speed motor test bench according to claim 9, characterized in that: A clamping groove is provided inside the test bench main body (1). The outer surface of the test bench main body (1) is in contact with the lower surfaces of the second box body (601) and the third box body (603). An observation window is provided at the top of the second box body (601). A clamping groove is provided on the side surface of the second box body (601). The clamping groove on the side surface of the second box body (601) is clamped with the fourth clamping block (605). The clamping groove inside the test bench main body (1) is used for limiting the second box body (601) and the third box body (603).

Images