A high-speed motor test bench

Abstract

The present invention relates to the field of motor testing technology, and discloses a high-speed motor test bench, including a test bench main body, an outer surface of the test bench main body clamping a balancing mechanism, the balancing mechanism including a screw, the outer surface of the screw is threadedly connected with a V-shaped column 1 and a V-shaped column 2, the interior of the V-shaped column 1 is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with a roller, the V-shaped column 1 and the V-shaped column 2, the roller is used to position the motor rotor, a coaxial device, the coaxial device is fixedly connected to the top of the screw, and the balancing mechanism is provided to reduce friction, limit rotor displacement and simulate load, and accurately test dynamic balance; the centering mechanism is used to achieve precise rotor positioning and improve test accuracy; the protective mechanism can not only adjust the temperature and assist in heat dissipation to ensure reliable testing under different temperature states, but also can be fully enclosed to isolate external interference and prevent dust when idle, thereby ensuring test accuracy and equipment life.

Description

Technical Field

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

[0002] With the rapid development of modern industry and technology, the application areas of high-speed motors continue to expand, from the drive systems of new energy vehicles to high-speed air compressors and high-speed magnetic levitation motors. Their performance directly affects the overall efficiency and reliability of related equipment. For high-speed motors running at 25,000 RPM, the balance of the rotor is a key factor in determining the motor's operating stability, vibration level, and service life.

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

[0004] However, this patent also has the following shortcomings: the high-speed motor rotor balance test is easily interfered by external factors, and the rotor positioning deviation produces false imbalance; temperature changes and airflow cause distortion of the test results, making it difficult to accurately reflect the actual balance state of the rotor. To address this situation, a high-speed motor test bench is specially proposed. Summary of the Invention

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

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-speed motor test bench, comprising a test bench body, the outer surface of which is clamped with a balancing mechanism, the balancing mechanism comprising:

[0007] A screw, wherein the outer surface of the screw is threadedly connected to a V-shaped column 1 and a V-shaped column 2, the interior of the V-shaped column 1 is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is rotatably connected to a roller, and the V-shaped column 1 and the V-shaped column 2, the roller is used to position the motor rotor;

[0008] A coaxial device, which is fixedly connected to the top of the screw and realizes coaxial rotation and synchronous drive of the screw through a toothed synchronous belt transmission mechanism;

[0009] Telescopic baffle 1, the telescopic baffle 1 is provided with three groups, the telescopic baffle 1 is fixedly connected to the outer surface of the V-shaped column 1, the telescopic baffle 1 is fixedly connected to the outer surface of the V-shaped column 2, and the telescopic baffle 1 is used to protect the screw.

[0010] According to the above technical solution, the outer surface of the test bench body is clamped with a coupling test device, the outer surface of the test bench body is clamped with a load motor, the coupling test device is fixedly connected to the load motor, the interior of the test bench body is clamped with a centering mechanism and a protective mechanism, and the coupling test device and the load motor are used to test the motor rotor.

[0011] According to the above technical solution, the balancing mechanism also includes a first clamping block, the outer surface of the first clamping block is fixedly connected to a box frame, the outer surface of the box frame is fixedly connected to a through-hole shell, the outer surface of the box frame is fixedly connected to a first box, and the first box is used to protect the coaxial device.

[0012] According to the above technical solution, the box frame is rotationally connected to the screw, the upper surface of the telescopic baffle 1 is fixedly connected to the lower surface of the box frame, the lower surface of the box frame is in contact with the upper surface of the test bench body, and the V-shape of the V-shaped column 1 and the V-shaped column 2 is used to assist in positioning the motor rotor.

[0013] According to the above technical solution, the centering mechanism includes a second clamping block, which is clamped with the test bench main body, the outer surface of the second clamping block is fixedly connected to an arc frame, the internal thread of the second clamping block is connected to a threaded column 1, the upper surface of the arc frame is fixedly connected to a rotating assembly, the outer surface of the rotating assembly is fixedly connected to a hydraulic pump, the outer surface of the hydraulic pump is fixedly connected to an arc plate, the outer surface of the arc plate is fixedly connected to a protrusion, and the arc plate and the protrusion are used to position the motor rotor.

[0014] According to the above technical solution, the centering mechanism includes a retaining ring, which is slidingly connected to the hydraulic pump. The outer surface of the retaining ring is rotatably connected to a through-hole column, and the internal thread of the through-hole column is connected to a second threaded column, which is used to adjust the angle of the hydraulic pump.

[0015] According to the above technical solution, a fixing nut is provided on the outer surface of the threaded column one, and limiting plates are provided at both ends of the threaded column two. 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 threaded column one is used to rotate the threaded column one, and the rotating assembly is used to rotate the hydraulic pump.

[0016] According to the above technical solution, the protective mechanism includes a second box body, which is clamped with the test bench main body, and a third clamping block is clamped inside the second box body. The outer surface of the third clamping block is fixedly connected to the third box body, and 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.

[0017] According to the above technical solution, the protective mechanism also includes a telescopic baffle 2, the outer surface of which is fixedly connected to a fourth clamping block, the outer surface of which is fixedly connected to a U-shaped frame, the interior of which is fixedly connected to an inclined plate, and the U-shaped frame and the inclined plate are used to dissipate heat from the motor rotor.

[0018] According to the above technical solution, a card slot 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 on the top of the second box body, and a card slot is provided on the side of the second box body. The card slot on the side of the second box body is engaged with the fourth card block, and the card slot inside the test bench main body is used to limit the second box body and the third box body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This high-speed motor test bench is equipped with a balancing mechanism and utilizes high-precision rollers to rotatably connect with the shaft of the high-speed motor rotor to ensure that the rotor main shaft can rotate freely and reduce the impact of friction resistance on the test. The coupling test device can effectively limit the axial and radial displacement of the rotor to ensure the stability and accuracy of the test. During the dynamic balancing test, the clamping force of the coaxially adjusted rollers is used to simulate the load state under different working conditions. Combined with sensors to monitor vibration data in real time, it can achieve accurate testing and adjustment of the dynamic balance of the high-speed motor rotor.

[0021] 2. This high-speed motor test bench, equipped with a through-centering mechanism, can effectively assist in the centering of high-speed motor rotors and automatically adjust the position and clamping force of the centering fixture. Whether it is a small precision rotor or a large heavy-load rotor, it can be accurately positioned to ensure that the rotor axis is highly aligned with the axis of the test equipment, avoiding interference with static and dynamic balance test results due to installation eccentricity, thereby improving the accuracy and reliability of test data.

[0022] 3. This high-speed motor test bench, with a protective mechanism, can realize static and dynamic balance tests of high-speed motor rotors at different temperature states. It can accurately adjust the internal temperature to simulate high and low temperature environments. When the rotor temperature rises during the test, air cooling accelerates heat dissipation to maintain the rotor operating at an appropriate temperature, effectively preventing the rotor balance from being affected by temperature changes and ensuring the accuracy and reliability of the test results.

[0023] 4. This type of high-speed motor test bench can effectively isolate the external environment from interference with the static and dynamic balance tests of high-speed motor rotors by setting up a protective mechanism. The protective mechanism adopts a fully enclosed design, with excellent dust-proof, moisture-proof and electromagnetic interference-proof performance, and can shield external airflow, vibration and electromagnetic signals to ensure a stable test environment; the box structure can be used as conventional protection for the test bench. Its sealed design can block the entry of dust and debris, keeping the interior clean when the equipment is idle, and preventing external contaminants from adhering to the rotor or test components, affecting test accuracy and equipment service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 It is a cross-sectional view of the structure of the main body of the present invention;

[0026] Figure 3 It is a structural cross-sectional view of the balancing mechanism of the present invention;

[0027] Figure 4 It is a schematic diagram of the partial structure of the balancing mechanism of the present invention;

[0028] Figure 5 It is a structural cross-sectional view of the centering mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the partial structure of the centering mechanism of the present invention;

[0030] Figure 7 It is a cross-sectional view of the structure of the protection mechanism of the present invention;

[0031] Figure 8 It is a partial structural sectional view of the protection mechanism of the present invention.

[0032] In the figure: 1. Test bench body; 2. Coupling test device;

[0033] 3. Balancing mechanism;

[0034] 301, first clamping block; 302, box frame; 303, through-hole housing; 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;

[0035] 4. Load motor;

[0036] 5. Centering mechanism;

[0037] 501, curved frame; 502, threaded column 1; 503, second clamping block; 504, rotating assembly; 505, hydraulic pump; 506, curved plate; 507, protrusion; 508, snap ring; 509, through-hole column; 510, threaded column 2;

[0038] 6. Protection mechanism;

[0039] 601, second box body; 602, third clamping block; 603, third box body; 604, telescopic baffle 2; 605, fourth clamping block; 606, U-shaped frame; 607, inclined plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0042] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] Example 1: See Figures 1-6 The present invention provides a technical solution: a high-speed motor test bench, including a test bench body 1, the outer surface of the test bench body 1 is clamped with a balancing mechanism 3, and the balancing mechanism 3 includes:

[0044] Screw 304, the outer surface of screw 304 is threadedly connected to V-shaped column 1 305 and V-shaped column 2 306, the interior of V-shaped column 1 305 is fixedly connected to shaft 307, the outer surface of shaft 307 is rotatably connected to roller 308, V-shaped column 1 305, V-shaped column 2 306, and roller 308 are used to position the motor rotor;

[0045] The coaxial device 309 is fixedly connected to the top of the screw 304. The coaxial device 309 realizes the coaxial rotation and synchronous drive of the screw 304 through a toothed synchronous belt transmission mechanism;

[0046] Telescopic baffle 1 311, there are three groups of telescopic baffle 1 311, telescopic baffle 1 311 is fixedly connected to the outer surface of V-shaped column 1 305, telescopic baffle 1 311 is fixedly connected to the outer surface of V-shaped column 2 306, and telescopic baffle 1 311 is used to protect the screw 304.

[0047] The outer surface of the test bench body 1 is clamped with a coupling test device 2, the outer surface of the test bench body 1 is clamped with a load motor 4, the coupling test device 2 is fixedly connected to the load motor 4, the interior of the test bench body 1 is clamped with a centering mechanism 5 and a protective mechanism 6, and the coupling test device 2 and the load motor 4 are used to test the motor rotor.

[0048] The balancing mechanism 3 also 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 310, the first box 310 is used to protect the coaxial device 309, the box frame 302 is rotatably connected to the 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 body 1, and the V-shaped column 30 The V-shape of the V-shaped column 305 and the second V-shaped column 306 is used to assist in positioning the motor rotor. When the screw 304 rotates to drive the V-shaped column 1 305 and the second V-shaped column 306 to move, the threads on the surface of the screw 304 cause the V-shaped column 1 305 and the second V-shaped column 306 to move relative to each other, thereby allowing the roller 308 to position the rotor main shaft. When the screw 304 drives the V-shaped column 1 305 and the second V-shaped column 306 to move, the telescopic baffle 1 311 protects the movement of the V-shaped column 1 305 and the second V-shaped column 306, thereby ensuring the accuracy of synchronous rotation.

[0049] When performing static and dynamic balancing tests on a high-speed motor rotor, different positioning methods will affect the static and dynamic balancing tests when positioning the rotor main shaft, causing deviations in the static and dynamic balancing data. Therefore, the rotor is positioned through the balancing mechanism 3 to ensure the accuracy of the static and dynamic balancing test data.

[0050] 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 the arc frame 501, and the internal thread of the second clamping block 503 is connected to the threaded column 1 502. The upper surface of the arc frame 501 is fixedly connected to the rotating component 504, and the outer surface of the rotating component 504 is fixedly connected to the hydraulic pump 505. The outer surface of the hydraulic pump 505 is fixedly connected to the arc plate 506, and the outer surface of the arc plate 506 is fixedly connected to the protrusion 507. The arc plate 506 and the protrusion 507 are used to position the motor rotor.

[0051] The centering mechanism 5 includes a retaining ring 508, which is slidingly connected to the hydraulic pump 505. The outer surface of the retaining ring 508 is rotatably connected to a through-hole column 509. The internal thread of the through-hole column 509 is connected to a threaded column 2 510. The threaded column 2 510 is used to adjust the angle of the hydraulic pump 505.

[0052] A fixing nut is provided on the outer surface of the threaded column 1 502, and a limit plate is provided at both ends of the threaded column 2 510. The arc-shaped opening of the arc plate 506 is the same as the arc-shaped opening of the arc frame 501. The fixing nut of the threaded column 1 502 is used to rotate the threaded column 1 502, and the rotating assembly 504 is used to rotate the hydraulic pump 505. After the threaded column 1 502 adjusts the distance between the arc frame 501 and the symmetrically arranged arc frame 501, the position of the arc frame 501 and the symmetrically arranged arc frame 501 is fixed by the bolt group, thereby avoiding the influence of the centering mechanism 5 on it when the rotor is subjected to static and dynamic balance tests.

[0053] When positioning the rotor of a high-speed motor, if the rotor main shaft is not assisted, the accuracy of the main shaft positioning and centering will be affected, thereby affecting the static and dynamic balance tests of the rotor. Therefore, the rotor main shaft is assisted in positioning and centering by the centering mechanism 5.

[0054] The working principle of this embodiment is as follows: when using this high-speed motor test bench, when performing a static balance test on the high-speed motor rotor, the fixing nut of the threaded column 1 502 drives the threaded column 1 502 to rotate, and the position of the arc frame 501 and the symmetrically arranged arc frame 501 are adjusted, thereby adjusting the position of the arc plate 506, so that the main shaft of the rotor is placed on the surface of the arc plate 506, and the protrusion 507 makes point contact with the main shaft, and at the same time, the hydraulic pump 505 pushes the arc plate 506 to move upward, and the threaded column 2 510 rotates to move the through-hole column 509 inward, and the through-hole column 509 shrinks inward to make the retaining ring 508 slide on the outer surface of the hydraulic pump 505, so that the hydraulic pump 505 rotates on the outer surface of the rotating component 504, thereby the hydraulic pump 505 moves to the While pushing the arc plate 506 upward to move, the arc plate 506 is squeezed inward and contracted, so that the protrusion 507 surrounds the rotor main shaft and centers the rotor main shaft. At the same time, the screw 304 rotates and is synchronously moved by the coaxial device 309. The rotor main shaft is centered and positioned by the V-shaped setting of the V-shaped column 1 305 and the V-shaped column 2 306, and is rollingly supported by the roller 308. At this time, the high-speed motor rotor can be statically balanced. After completion, the rotor main shaft is connected to the coupling test device 2, and the rotor main shaft is loaded by the load motor 4. The clamping degree of the roller 308 is adjusted by the screw 304, so that the rotor main shaft is dynamically balanced and recorded by the coupling test device 2.

[0055] Example 2: Please refer to Figure 7-Figure 8 Based on the first embodiment, the present invention provides a technical solution: the protective mechanism 6 includes a second box body 601, the second box body 601 is clamped with the test bench main body 1, the interior of the second box body 601 is clamped with a third clamping block 602, the outer surface of the third clamping block 602 is fixedly connected to the third box body 603, the outer surface of the third box body 603 is in contact with the outer surface of the second box body 601, and the second box body 601 and the third box body 603 are used to protect the test bench main body 1.

[0056] The protective mechanism 6 also includes a telescopic baffle 2 604, the outer surface of which is fixedly connected to a fourth clamping block 605, the outer surface of which is fixedly connected to a U-shaped frame 606, the interior of the U-shaped frame 606 is fixedly connected to an inclined plate 607, and the U-shaped frame 606 and the inclined plate 607 are used to dissipate heat for the motor rotor.

[0057] A card slot is provided inside the test bench main body 1, and 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 on the top of the second box body 601, and a card slot is provided on the side of the second box body 601. The side card slot of the second box body 601 is engaged with the fourth block 605. The card slot 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 be dust-proof and moisture-proof, and is engaged with the test bench main body 1 through the second box body 601 and the third box body 603 to form a metal cage, which protects the internal equipment from electromagnetic radiation and isolates the airflow and temperature through the box itself. When the U-shaped frame 606 is adjusted by the fourth block 605, the telescopic baffle 2 604 blocks the side card slot of the second box body 601 to ensure the protection effect.

[0058] When the static and dynamic balance test is performed on the rotor main shaft of a high-speed motor, external factors including temperature, airflow, etc. may affect it, so the protection mechanism 6 is used to block the influence of the external factors.

[0059] The working principle of this embodiment is as follows: when using this high-speed motor test bench, after the rotor main shaft is positioned and aligned, the second box 601 and the third box 603 are clamped together, thereby clamping the second box 601 and the third box 603 to the test bench main body 1, thereby protecting the internal equipment from dust, moisture, and electromagnetic fields, and isolating them from external factors, so as to perform static and dynamic balance tests of the rotor. The external temperature can be isolated and the internal temperature can be adjusted by connecting a temperature adjustment device, so as to perform tests under different stability conditions. The U-shaped frame 606 can be pushed to move by the fourth clamping block 605, thereby adjusting the position of the U-shaped frame 606 and the inclined plate 607, and observation can be performed through the observation window on the top of the second box 601, so that the part of the rotor with increased temperature can be dissipated during the test. When the test bench is not in use, the second box 601 and the third box 603 cooperate with the test bench main body 1 to protect the internal equipment, thereby ensuring internal cleanliness and avoiding affecting the test accuracy.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-speed motor test bench, comprising a test bench body (1), wherein the outer surface of the test bench body (1) is clamped with a balancing mechanism (3), characterized in that: The balancing mechanism (3) comprises: A screw (304), wherein the outer surface of the screw (304) is threadedly connected to a V-shaped column (305) and a V-shaped column (306), the interior of the V-shaped column (305) is fixedly connected to a rotating shaft (307), and the outer surface of the rotating shaft (307) is rotatably connected to a roller (308), and the V-shaped column (305), the V-shaped column (306), and the roller (308) are used to position the motor rotor; A coaxial device (309), wherein the coaxial device (309) is fixedly connected to the top of the screw (304), and the coaxial device (309) realizes the coaxial rotation and synchronous drive of the screw (304) through a toothed synchronous belt transmission mechanism; A telescopic baffle (311), wherein three groups of the telescopic baffles (311) are provided, wherein the telescopic baffles (311) are fixedly connected to the outer surface of the V-shaped column (305), and the telescopic baffles (311) are fixedly connected to the outer surface of the V-shaped column (306), and the telescopic baffles (311) are used to protect the screw (304); The outer surface of the test bench body (1) is clamped with a coupling test device (2), the outer surface of the test bench body (1) is clamped with a load motor (4), the coupling test device (2) is fixedly connected to the load motor (4), the interior of the test bench body (1) is clamped with a centering mechanism (5) and a protection mechanism (6), and the coupling test device (2) and the load motor (4) are used to test the motor rotor; The balancing mechanism (3) further comprises a first clamping block (301), the outer surface of the first clamping block (301) being fixedly connected to a box frame (302), the outer surface of the box frame (302) being fixedly connected to a through-hole shell (303), the outer surface of the box frame (302) being fixedly connected to a first box (310), the first box (310) being used to protect the coaxial device (309); The centering mechanism (5) includes a second clamping block (503), the second clamping block (503) is clamped with the test bench body (1), the outer surface of the second clamping block (503) is fixedly connected to an arc frame (501), the internal thread of the second clamping block (503) is connected to a threaded column (502), the upper surface of the arc 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 plate (506), the outer surface of the arc plate (506) is fixedly connected to a convex point (507), and the arc plate (506) and the convex point (507) are used to position the motor rotor; The protection mechanism (6) comprises a second box (601), the second box (601) is clamped with the test bench main body (1), a third clamping block (602) is clamped inside the second box (601), the outer surface of the third clamping block (602) is fixedly connected to the third box (603), the outer surface of the third box (603) is in contact with the outer surface of the second box (601), and the second box (601) and the third box (603) are used to protect the test bench main body (1).

2. The high-speed motor test bench according to claim 1, characterized in that: The box frame (302) is rotatably connected to the 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 body (1), and the V-shape of the V-shaped column (305) and the V-shaped column (306) is used to assist in positioning the motor rotor.

3. The high-speed motor test bench according to claim 1, characterized in that: The centering mechanism (5) includes a snap ring (508), the snap ring (508) is slidably connected to the hydraulic pump (505), the outer surface of the snap 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), and the second threaded column (510) is used to adjust the angle of the hydraulic pump (505).

4. The high-speed motor test bench according to claim 3, characterized in that: The outer surface of the threaded column 1 (502) is provided with a fixing nut, and both ends of the threaded column 2 (510) are provided with a limiting plate. The arc-shaped opening of the arc-shaped plate (506) is the same as the arc-shaped opening of the arc-shaped frame (501). The fixing nut of the threaded column 1 (502) is used to rotate the threaded column 1 (502), and the rotating assembly (504) is used to rotate the hydraulic pump (505).

5. The high-speed motor test bench according to claim 1, characterized in that: The protection mechanism (6) further comprises a second telescopic baffle (604), the outer surface of the second telescopic baffle (604) being fixedly connected to a fourth clamping block (605), the outer surface of the fourth clamping block (605) being fixedly connected to a U-shaped frame (606), the interior of the U-shaped frame (606) being fixedly connected to an inclined plate (607), and the U-shaped frame (606) and the inclined plate (607) being used for dissipating heat from the motor rotor.

6. The high-speed motor test bench according to claim 5, characterized in that: A card slot is provided inside the test bench body (1); the outer surface of the test bench body (1) contacts the lower surfaces of the second box body (601) and the third box body (603); an observation window is provided on the top of the second box body (601); a card slot is provided on the side of the second box body (601); the card slot on the side of the second box body (601) is engaged with the fourth card block (605); and the card slot inside the test bench body (1) is used to limit the second box body (601) and the third box body (603).

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