Strength testing device for motor rotor

Abstract

The invention discloses a strength testing device for a motor rotor, and particularly relates to the technical field of motor rotor testing, which comprises a testing platform, a pressure electric cylinder, a pressure sensor and a synchronous stable pressure applying mechanism, the synchronous guide extrusion mechanism comprises a sleeve block, a hinge shaft, a hinge plate, a stable rotating ring, a plurality of guide pressing frames, a sleeve column and a motor rotor; a corner synchronous pressing mechanism is arranged at the top end of the sleeve column; and a shaft part synchronous pressure applying mechanism is arranged at the bottom end of the sleeve column. Through the synchronous stable pressure applying mechanism, stable pressure can be synchronously applied in different directions, so that the motor rotor is subjected to multi-point synchronous stable test, the efficiency of the multi-point stable pressure test is greatly improved, and the problem that the stable multi-point pressure test is difficult to synchronously realize is solved; therefore, the efficiency of the multi-point stable pressure test is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotor testing, and more specifically, to a strength testing device for a motor rotor. Background Art

[0002] The device can test the stable pressure environment of the motor during operation and perform strength tests on the rotor, thereby evaluating the rotor's tolerance under actual working conditions. Secondly, potential defects can be discovered: Through stable pressure testing, cracks and inclusion defects that may exist inside the rotor can be discovered in a timely manner to prevent these defects from causing the rotor to break or fail during the operation of the motor.

[0003] Among the existing published documents, the Chinese patent announcement number CN116818525A discloses a strength test device and strength test method for a motor rotor. The strength test device includes a stretching device connected to each magnetic pole part for applying radial tensile force to each magnetic pole part; a strain sensor fixed to each magnetic pole part for obtaining strain data of each magnetic pole part. This strength test device can shorten the time required for the test and reduce the personal threat of flying debris to the tester. However, this technology still has the following problems when used.

[0004] When testing the motor rotor, it is necessary to provide stable pressure test strength, and the pressure is applied vertically to the motor rotor shaft. The motor rotor also has a rotor core part, and there are various slot corner positions in the rotor core, and there are various points on the rotor shaft. After testing one point, it is necessary to switch to another point and then determine the stable extrusion pressure value and extrusion position. It is difficult to maintain stable pressure at each position at the specified position. Therefore, it is difficult to synchronously achieve stable pressure testing on the core corner positions on the motor rotor, and it is also difficult to synchronously achieve stable multi-point pressure testing on the shaft of the motor rotor. This leads to a significant decrease in the efficiency of multi-point stable pressure testing. For this reason, it is necessary to provide a motor rotor strength testing device. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a strength test device for a motor rotor, comprising a test platform, a pressure electric cylinder and a pressure sensor, wherein the pressure electric cylinder is located above the test platform, the pressure sensor is fixedly connected to the output end of the pressure electric cylinder, and a synchronous stable pressure mechanism is provided on one side of the pressure sensor;

[0006] The synchronous guide extrusion mechanism includes a sleeve block fixedly arranged on one side of the pressure sensor, and the inner wall of the sleeve block is rotatably connected to a hinge shaft, the top end of the hinge shaft is fixedly connected to a hinge plate, and one side of the hinge plate is fixedly connected to a stable swivel; the outer wall of the stable swivel is fixedly connected to a plurality of guide pressure frames, the inner wall of each guide pressure frame is slidably connected to a sleeve column, and the inside of the stable swivel is slidably connected to a motor rotor; the top end of the sleeve column is provided with a corner synchronous pressure mechanism; the bottom end of the sleeve column is provided with a shaft synchronous pressure mechanism.

[0007] Preferably, the sleeve block is rotatably connected to the hinge plate, and the outer wall of the sleeve block and the inner wall of the hinge plate are smooth surfaces, a plurality of guide pressure frames are arranged equidistantly in a circular ring, the cross-sectional shape of the stabilizing rotating ring is a circular ring, a sleeve block is fixedly connected to one side of the pressure electric cylinder, and a hinged rod is rotatably connected to the inner wall of the sleeve block; the hinged rod is fixedly connected to the test platform.

[0008] Preferably, a stabilizing guide shaft is fixedly connected to the bottom end of the hinged plate, a guide groove is provided on the outer wall of the stabilizing guide shaft, and the stabilizing guide shaft is slidably connected to the test platform to which the guide groove belongs; a positioning ring is fixedly connected to the top of the test platform near its center point, the positioning ring is plugged into the motor rotor, a plurality of mounting blocks are fixedly connected to the outer wall of the test platform, and a controller is fixedly connected to the upper surface of the test platform near the mounting blocks.

[0009] When the technical solution is in use, the test pressure value is set on the controller, the pressure sensor is pushed by the pressure electric cylinder, the sleeve block squeezes the hinge shaft, the hinge plate drives the stable guide shaft to rotate clockwise, the hinge plate drives the stable swivel to rotate clockwise, and the guide pressure frame drives the sleeve column to move to the right, so that multiple sleeve columns are close to the center point of the motor rotor.

[0010] Preferably, the corner synchronous pressure mechanism includes a concave block fixedly arranged at the top end of the sleeve column; two limit rings are arranged above the guide pressure frame, and the two limit rings are fixedly connected to the sleeve column, and a stabilizing guide rail is slidably connected between the two limit rings, a stabilizing slide column is fixedly connected to one side of the inner wall of the stabilizing guide rail, and a support plate is fixedly connected to one end of the stabilizing guide rail, and the support plate is fixedly connected to the test platform; the stabilizing guide rail and the stabilizing slide column are both slidably connected to the sleeve column, and two connecting shafts are fixedly connected to the top end of the inner wall of the concave block, and the outer wall of each connecting shaft is rotatably connected to A sleeve pressure strip, the inner wall of which is rotatably connected with an extrusion column at a position away from the connecting shaft; the top of the extrusion column is fixedly connected with a hinged pressure block, and a corner pressure plate is fixedly connected to one side of the hinged pressure block, and the corner pressure plate is slidably connected to the motor rotor; the other side of each hinged pressure block is fixedly connected with a connecting plate, and one side of the connecting plate is fixedly connected with a guide shaft, and the outer wall of the guide shaft is fixedly connected with two slip rings, and the two slip rings are slidably connected to the stable guide rail, and the two limit rings are symmetrically arranged about the stable guide rail, and the cross-sectional shape of the two limit rings is a circular ring.

[0011] When the technical solution is in use, the sleeve column drives the two limit rings to move to the right, and the sleeve column can move to the right along the inner wall of the stable slide column. The connecting shaft drives one end of the sleeve pressure strip, the extrusion column squeezes the hinged pressure block, the hinged pressure block drives the connecting plate to move to the right, and the guide shaft drives the two slip rings to move to the right. The two slip rings can slide along the outer wall of the stable guide rail. The corner pressure plate can apply a stable pressure value to the corner position of the iron core of the motor rotor. Multiple corner pressure plates respectively apply stable pressure to multiple corner positions of the iron core of the motor rotor to perform strength testing.

[0012] Preferably, the synchronous pressure-applying mechanism of the shaft portion comprises a linkage block fixedly arranged at the bottom end of the sleeve column; one side of the linkage block is fixedly connected to an extrusion strip, and one side of the extrusion strip is fixedly connected to an arc-shaped upper pressure block, and the arc-shaped upper pressure block is used to extrude the motor rotor; the lower surface of the extrusion strip is fixedly connected to a linkage plate, and one end of the linkage plate is fixedly connected to an arc-shaped middle pressure block, and the outer wall of the motor rotor is slidably connected to an arc-shaped lower pressure block below the arc-shaped middle pressure block; one side of the outer wall of the arc-shaped lower pressure block is fixedly connected to an extrusion plate, and one end of the extrusion plate is fixedly connected to an extrusion block, and the extrusion block is fixedly connected to another sleeve column, and the arc-shaped middle pressure block and the arc-shaped upper pressure block are both slidably connected to the motor rotor, and the cross-sectional shape of the arc-shaped upper pressure block and the arc-shaped middle pressure block is circular arc.

[0013] When the technical solution is in use, the rightward movement of the sleeve column will drive the linkage block to move rightward, and the extrusion bar will cause the arc-shaped upper pressure block to move rightward for extrusion. The extrusion bar will simultaneously drive the linkage plate to move rightward, and the arc-shaped middle pressure block will be squeezed at the middle position of the outer wall of the motor rotor shaft, while the other motor rotor will drive the extrusion block to approach the center point of the motor rotor, and the extrusion plate will drive the arc-shaped lower pressure block to be squeezed at the lower position of the outer wall of the motor rotor shaft.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention uses a synchronous and stable pressure-applying mechanism to push the pressure sensor through the pressure electric cylinder, the pressure sensor pushes the sleeve block, the hinge shaft drives the hinge plate to extrude, the stable guide shaft stably rotates clockwise along the inner wall of the guide groove, the hinge plate drives the stable swivel to rotate clockwise, and the guide pressure frame drives the sleeve column to move to the right, so that multiple sleeve columns are close to the center point of the motor rotor, so that stable pressure can be applied synchronously in different directions, thereby performing multi-point synchronous testing on the motor rotor, without the need for point-by-point position change testing, which greatly improves the efficiency of multi-point stable pressure testing.

[0016] 2. The present invention adopts a synchronous corner pressure mechanism, the sleeve column drives the two limit rings to move to the right, and at the same time the sleeve column moves to the right along the outer wall guide of the stable sliding column, the sleeve column drives the concave block to move to the right, the concave block drives the two connecting shafts to move to the right synchronously, the sleeve pressure strip drives the extrusion column to extrude, the extrusion column extrudes the hinged pressure block, the hinged pressure block drives the connecting plate to move to the right, the guide shaft drives the two slip rings to move to the right, and multiple corner pressure plates respectively apply stable pressure to multiple core corner positions of the motor rotor for strength testing, thereby greatly improving the efficiency of multi-point stable pressure testing.

[0017] 3. The present invention uses a synchronous pressure-applying mechanism on the shaft. The rightward movement of the sleeve column will drive the linkage block to move rightward, and the linkage block will drive the extrusion bar to move rightward. The arc-shaped upper pressure block is squeezed at the upper position of the shaft outer wall of the motor rotor, and the extrusion bar synchronously drives the linkage plate to move rightward. The arc-shaped middle pressure block is squeezed at the middle position of the shaft outer wall of the motor rotor, and the other motor rotor will drive the extrusion block to approach the center point of the motor rotor, and the extrusion plate drives the arc-shaped lower pressure block to squeeze at the lower position of the shaft outer wall of the motor rotor, synchronously realizing stable multi-point pressure testing on the shaft of the motor rotor, thereby greatly improving the efficiency of the multi-point stable pressure testing.

[0018] According to the mutual influence of the above-mentioned multiple effects, firstly, multiple sleeves synchronously apply stable pressure and begin to approach the center point of the motor rotor. At the same time, multiple corner pressure plates synchronously apply stable pressure to multiple core corner positions of the motor rotor for strength testing. At the same time, a stable multi-point pressure test is synchronously performed on the shaft of the motor rotor. In summary, a stable pressure test can be synchronously performed on the core position on the motor rotor, and a stable multi-point pressure test can also be synchronously performed on the shaft of the motor rotor, which greatly improves the efficiency of the multi-point stable pressure test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front view structure of the strength testing device for the motor rotor of the present invention.

[0020] Figure 2 It is a schematic diagram of the partial structure of the connection between the positioning ring and the test platform of the present invention.

[0021] Figure 3 It is a schematic diagram of the partial structure of the connection between the hinge shaft and the hinge plate of the present invention from a front view.

[0022] Figure 4 It is a schematic diagram of the partial structure of the connection between the test platform and the support plate of the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0024] Figure 6 It is a schematic diagram of the partial structure of the connection between the connecting shaft and the concave block of the present invention from a front view.

[0025] Figure 7 It is a bottom view structural schematic diagram of the motor rotor strength testing device of the present invention.

[0026] Figure 8 It is a schematic diagram of the local structure of the connection between the linkage block and the extrusion strip of the present invention.

[0027] Fig. 9 It is a schematic diagram of the partial structure of the connection between the arc-shaped lower pressing block and the extrusion plate of the present invention.

[0028] The accompanying drawings are marked as follows: 1, test platform; 2, pressure cylinder; 3, pressure sensor; 4, sleeve block; 5, hinge shaft; 6, hinge plate; 7, stable swivel; 8, guide pressure frame; 9, sleeve column; 10, motor rotor; 11, hinge rod; 12, sleeve block; 13, stable guide shaft; 14, guide groove; 15, positioning ring; 16, mounting block; 17, controller; 18, limit ring; 19, stable guide rail; 20 , stabilizing sliding column; 21, supporting plate; 22, concave block; 23, connecting shaft; 24, sleeve pressure strip; 25, extrusion column; 26, hinged pressure block; 27, corner pressure plate; 28, connecting plate; 29, guide shaft; 30, slip ring; 31, linkage block; 32, extrusion strip; 33, arc-shaped upper pressure block; 34, linkage plate; 35, arc-shaped middle pressure block; 36, arc-shaped lower pressure block; 37, extrusion plate; 38, extrusion block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-9 A motor rotor strength testing device is shown, and the motor rotor strength testing device is provided with a synchronous stable pressure mechanism, a corner synchronous pressure mechanism, and a shaft synchronous pressure mechanism. The settings of various mechanisms and components can synchronously realize stable pressure testing on the core position on the motor rotor 10, and can also synchronously realize stable multi-point pressure testing on the shaft of the motor rotor 10, thereby greatly improving the efficiency of the multi-point stable pressure test. The specific structural settings of various mechanisms and components are as follows.

[0031] In this embodiment, as shown in the attached Figure 1-4As shown, the pressure electric cylinder 2 is located above the test platform 1, the pressure sensor 3 is fixedly connected to the output end of the pressure electric cylinder 2, and a synchronous stable pressure mechanism is provided on one side of the pressure sensor 3; the synchronous guide extrusion mechanism includes a sleeve block 4 fixedly arranged on one side of the pressure sensor 3, and the inner wall of the sleeve block 4 is rotatably connected to a hinge shaft 5, the top of the hinge shaft 5 is fixedly connected to a hinge plate 6, and one side of the hinge plate 6 is fixedly connected to a stable rotating ring 7; the outer wall of the stable rotating ring 7 is fixedly connected to a plurality of guide pressing frames 8, the inner wall of each guide pressing frame 8 is slidably connected to a sleeve column 9, and the inside of the stable rotating ring 7 is slidably connected to a motor rotor 10; the top of the sleeve column 9 is provided with a corner synchronous pressure mechanism; the bottom of the sleeve column 9 is provided with a shaft synchronous pressure mechanism. The sleeve block 4 is rotatably connected to the hinge plate 6, and the outer wall of the sleeve block 4 and the inner wall of the hinge plate 6 are both smooth surfaces. Multiple guide pressing frames 8 are arranged in a circular ring with equal spacing, and the cross-sectional shape of the stable rotating ring 7 is a circular ring.

[0032] In this embodiment, as shown in the attached Figure 1-3 As shown, a socket block 12 is fixedly connected to one side of the pressure electric cylinder 2, and a hinged rod 11 is rotatably connected to the inner wall of the socket block 12; the hinged rod 11 is fixedly connected to the test platform 1, so that the pressure electric cylinder 2 can drive the socket block 12 to rotate, and the socket block 12 rotates on the outer wall of the hinged rod 11, so that the socket block 12 rotates stably.

[0033] The bottom end of the hinged plate 6 is fixedly connected with a stabilizing guide shaft 13, and the outer wall of the stabilizing guide shaft 13 is provided with a guide groove 14. The stabilizing guide shaft 13 is slidably connected with the test platform 1 to which the guide groove 14 belongs, so that the hinged plate 6 drives the stabilizing guide shaft 13 to rotate clockwise, and the stabilizing guide shaft 13 stably rotates clockwise along the inner wall of the guide groove 14, so that the hinged plate 6 can stably apply pressure; the top of the test platform 1 and near the center point thereof is fixedly connected with a positioning ring 15, and the positioning ring 15 is plugged with the motor rotor 10, so that the positioning ring 15 can position and support the bottom end of the motor rotor 10, so that the motor rotor 10 can be stably inserted into the positioning ring 15 for positioning operation. The outer wall of the test platform 1 is fixedly connected with a plurality of mounting blocks 16, and the upper surface of the test platform 1 and near the mounting block 16 is fixedly connected with a controller 17, so that the mounting block 16 can be fixed by inserting bolts into the mounting block 16, so that the mounting block 16 can be fixed, so that the plurality of mounting blocks 16 can provide support force for the test platform 1.

[0034] In this embodiment, as shown in the attached Figure 4-6As shown, the corner synchronous pressure mechanism includes a concave block 22 fixedly arranged at the top of the sleeve column 9; two limit rings 18 are arranged above the guide pressure frame 8, and the two limit rings 18 are fixedly connected to the sleeve column 9, and a stable guide rail 19 is slidably connected between the two limit rings 18, and a stable sliding column 20 is fixedly connected to one side of the inner wall of the stable guide rail 19, and a support plate 21 is fixedly connected to one end of the stable guide rail 19, and the support plate 21 is fixedly connected to the test platform 1; the stable guide rail 19 and the stable sliding column 20 are both slidably connected to the sleeve column 9, and two connecting shafts 23 are fixedly connected to the top of the inner wall of the concave block 22, and the outer wall of each connecting shaft 23 is rotatably connected to a sleeve pressure strip 24, and an extrusion column 25 is rotatably connected to the inner wall of the sleeve pressure strip 24 and away from the connecting shaft 23; the top of the extrusion column 25 is fixedly connected to a hinged pressure block 26, and a corner pressure plate 27 is fixedly connected to one side of the hinged pressure block 26, and the corner pressure plate 27 is slidably connected to the motor rotor 10.

[0035] The other side of each hinged pressure block 26 is fixedly connected to a connecting plate 28, one side of the connecting plate 28 is fixedly connected to a guide shaft 29, the outer wall of the guide shaft 29 is fixedly connected to two slip rings 30, and the two slip rings 30 are slidably connected to the stable guide rail 19. The two limit rings 18 are symmetrically arranged about the stable guide rail 19, and the cross-sectional shape of the two limit rings 18 is circular.

[0036] In this embodiment, as shown in the attached Figure 7-9 As shown, the synchronous pressure mechanism of the shaft portion includes a linkage block 31 fixedly arranged at the bottom end of the sleeve column 9; a squeeze bar 32 is fixedly connected to one side of the linkage block 31, and a curved upper squeeze block 33 is fixedly connected to one side of the squeeze bar 32, and the curved upper squeeze block 33 is used to squeeze the motor rotor 10. A linkage plate 34 is fixedly connected to the lower surface of the squeeze bar 32, and a curved middle squeeze block 35 is fixedly connected to one end of the linkage plate 34, and a curved lower squeeze block 36 is slidably connected to the outer wall of the motor rotor 10 and located below the curved middle squeeze block 35; a squeeze plate 37 is fixedly connected to one side of the outer wall of the curved lower squeeze block 36, and a squeeze block 38 is fixedly connected to one end of the squeeze plate 37, and the squeeze block 38 is fixedly connected to another sleeve column 9. The curved middle squeeze block 35 and the curved upper squeeze block 33 are both slidably connected to the motor rotor 10, and the cross-sectional shapes of the curved upper squeeze block 33 and the curved middle squeeze block 35 are circular arcs.

[0037] The method of using the strength testing device for the motor rotor of the present invention is as follows:

[0038] First, when the present invention applies pressure synchronously and stably, bolts are inserted into the interior of the mounting block 16 to dock and fix the mounting block 16 with the operating table, so that multiple mounting blocks 16 can provide support force for the test platform 1, increase the stability of the test platform 1, and the controller 17 supports the test platform 1, and the test platform 1 supports the positioning ring 15, and the positioning ring 15 positions and supports the bottom end of the motor rotor 10.

[0039] The pressure value of the test is set on the controller 17, and the pressure electric cylinder 2 pushes the pressure sensor 3, and the pressure sensor 3 pushes the sleeve block 4, and the sleeve block 4 squeezes the hinge shaft 5, and the hinge shaft 5 drives the hinge plate 6 to squeeze, and the hinge plate 6 drives the stable guide shaft 13 to rotate clockwise, and the stable guide shaft 13 rotates clockwise stably along the inner wall of the guide groove 14. At the same time, the hinge plate 6 drives the stable rotating ring 7 to rotate clockwise, and the stable rotating ring 7 makes multiple guide pressure frames 8 rotate clockwise synchronously, and the guide pressure frame 8 drives the sleeve column 9 to move to the right, so that multiple sleeve columns 9 are close to the center point of the motor rotor 10, and the pressure test can be performed synchronously and stably. At the same time, the pressure electric cylinder 2 will drive the sleeve block 12 to rotate, and the sleeve block 12 rotates on the outer wall of the hinge rod 11, and the test platform 1 supports the hinge rod 11 to increase the stability of the hinge rod 11.

[0040] At the same time, when the present invention applies synchronous pressure to the corner, the sleeve column 9 drives the two limit rings 18 to move rightward at the same time, and the sleeve column 9 is guided to move rightward along the outer wall of the stable slide column 20, and the sleeve column 9 can move rightward along the inner wall of the stable slide column 20. The sleeve column 9 drives the concave block 22 to move rightward, and the concave block 22 drives the two connecting shafts 23 to move rightward synchronously, and the connecting shaft 23 drives one end of the sleeve pressure strip 24, and the sleeve pressure strip 24 drives the extrusion column 25 to be extruded, and the extrusion column 25 squeezes the hinged pressure block 26, and the hinged pressure block 26 squeezes the corner pressure plate 27. At the same time, the hinged pressure block 26 drives the connecting plate 28 to move rightward, and the connecting plate 28 guides the guide shaft 29 to move rightward, and the guide shaft 29 drives the two slip rings 30 to move rightward, and the two slip rings 30 can slide along the outer wall of the stable guide rail 19, and the guide shaft 29 will also be guided to move rightward along the inside of the stable guide rail 19. In this way, the corner pressure plate 27 can apply a stable pressure value to the core corner position of the motor rotor 10, and multiple corner pressure plates 27 can simultaneously apply stable pressure to multiple core corner positions of the motor rotor 10 for strength testing.

[0041] At the same time, when the present invention applies synchronous pressure to the shaft, the rightward movement of the sleeve column 9 will drive the linkage block 31 to move rightward, and the linkage block 31 drives the extrusion bar 32 to move rightward. The extrusion bar 32 causes the arc-shaped upper pressure block 33 to move rightward and be extruded. The arc-shaped upper pressure block 33 is extruded at the upper position of the shaft outer wall of the motor rotor 10, and the extrusion bar 32 synchronously drives the linkage plate 34 to move rightward, and the linkage plate 34 drives the arc-shaped middle pressure block 35 to move rightward, and the arc-shaped middle pressure block 35 is extruded at the middle position of the shaft outer wall of the motor rotor 10, and the other motor rotor 10 will drive the extrusion block 38 to approach the center point of the motor rotor 10, and the extrusion block 38 drives the extrusion plate 37 to approach the center point of the motor rotor 10, and the extrusion plate 37 drives the arc-shaped lower pressure block 36 to be extruded at the lower position of the shaft outer wall of the motor rotor 10, and the shaft of the motor rotor 10 is synchronously tested for stable pressure at different positions.

[0042] Finally, when the present invention checks and records the test conditions, when the pressure value sensed by the pressure sensor 3 is the same as the pressure value set by the controller 17, the pressure cylinder 2 is closed by the controller 17, and then the iron core corner position of the motor rotor 10 is checked for damage. At the same time, it is possible to check whether the various lateral end positions of the motor rotor 10 have bending damage problems, and perform test recording operations to complete the stable pressure test of the motor rotor 10, thereby knowing the strength range of the motor rotor 10.

[0043] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A strength test device for a motor rotor, comprising a test platform (1), a pressure electric cylinder (2) and a pressure sensor (3), wherein the pressure electric cylinder (2) is located above the test platform (1), and the pressure sensor (3) is fixedly connected to the output end of the pressure electric cylinder (2), characterized in that: A synchronous and stable pressure-applying mechanism is provided on one side of the pressure sensor (3); The synchronous guide extrusion mechanism comprises a sleeve block (4) fixedly arranged on one side of the pressure sensor (3), and the inner wall of the sleeve block (4) is rotatably connected to a hinge shaft (5), the top end of the hinge shaft (5) is fixedly connected to a hinge plate (6), and one side of the hinge plate (6) is fixedly connected to a stabilizing swivel (7); The outer wall of the stabilizing rotating ring (7) is fixedly connected to a plurality of guide pressing frames (8), the inner wall of each guide pressing frame (8) is slidably connected to a sleeve column (9), and the interior of the stabilizing rotating ring (7) is slidably connected to a motor rotor (10); The top end of the sleeve column (9) is provided with a corner synchronous pressure mechanism; The bottom end of the sleeve column (9) is provided with a shaft synchronous pressure mechanism.

2. The motor rotor strength testing device according to claim 1, characterized in that: The sleeve block (4) is rotatably connected to the hinge plate (6), and the outer wall of the sleeve block (4) and the inner wall of the hinge plate (6) are both smooth surfaces.

3. The motor rotor strength testing device according to claim 1, characterized in that: The plurality of guide pressure frames (8) are arranged in a circular ring with equal spacing, and the cross-sectional shape of the stabilizing rotating ring (7) is a circular ring.

4. The motor rotor strength testing device according to claim 1, characterized in that: A sleeve block (12) is fixedly connected to one side of the pressure electric cylinder (2), and a hinge rod (11) is rotatably connected to the inner wall of the sleeve block (12); The hinged rod (11) is fixedly connected to the test platform (1).

5. The motor rotor strength testing device according to claim 1, characterized in that: The bottom end of the hinged plate (6) is fixedly connected to a stabilizing guide shaft (13), the outer wall of the stabilizing guide shaft (13) is provided with a guide groove (14), and the stabilizing guide shaft (13) is slidably connected to the test platform (1) to which the guide groove (14) belongs; A positioning ring (15) is fixedly connected to the top of the test platform (1) and close to the center point thereof, and the positioning ring (15) is plugged into the motor rotor (10).

6. The motor rotor strength testing device according to claim 1, characterized in that: A plurality of mounting blocks (16) are fixedly connected to the outer wall of the test platform (1), and a controller (17) is fixedly connected to the upper surface of the test platform (1) near the mounting blocks (16).

7. The motor rotor strength testing device according to claim 1, characterized in that: The corner synchronous pressure mechanism comprises a concave block (22) fixedly arranged on the top end of the sleeve column (9); Two limiting rings (18) are arranged above the guide pressure frame (8), the two limiting rings (18) are fixedly connected to the sleeve column (9), a stabilizing guide rail (19) is slidably connected between the two limiting rings (18), a stabilizing slide column (20) is fixedly connected to one side of the inner wall of the stabilizing guide rail (19), and a support plate (21) is fixedly connected to one end of the stabilizing guide rail (19), and the support plate (21) is fixedly connected to the test platform (1); The stabilizing guide rail (19) and the stabilizing slide column (20) are both slidably connected to the sleeve column (9); the top end of the inner wall of the concave block (22) is fixedly connected to two connecting shafts (23); the outer wall of each connecting shaft (23) is rotatably connected to a sleeve pressure strip (24); the inner wall of the sleeve pressure strip (24) is rotatably connected to a squeeze column (25) at a position away from the connecting shaft (23); The top end of the extrusion column (25) is fixedly connected to a hinged pressing block (26), and a corner pressing plate (27) is fixedly connected to one side of the hinged pressing block (26), and the corner pressing plate (27) is slidably connected to the motor rotor (10); The other side of each hinged pressure block (26) is fixedly connected to a connecting plate (28), one side of the connecting plate (28) is fixedly connected to a guide shaft (29), the outer wall of the guide shaft (29) is fixedly connected to two slip rings (30), and the two slip rings (30) are slidably connected to the stabilizing guide rail (19).

8. The motor rotor strength testing device according to claim 7, characterized in that: The two limiting rings (18) are symmetrically arranged with respect to the stabilizing guide rail (19), and the cross-sectional shapes of the two limiting rings (18) are both circular.

9. The motor rotor strength testing device according to claim 1, characterized in that: The shaft synchronous pressure mechanism comprises a linkage block (31) fixedly arranged at the bottom end of the sleeve column (9); One side of the linkage block (31) is fixedly connected to an extrusion strip (32), and one side of the extrusion strip (32) is fixedly connected to an arc-shaped upper pressing block (33), and the arc-shaped upper pressing block (33) is used to extrude the motor rotor (10); A linkage plate (34) is fixedly connected to the lower surface of the extrusion strip (32), and an arc-shaped middle pressure block (35) is fixedly connected to one end of the linkage plate (34); an arc-shaped lower pressure block (36) is slidably connected to the outer wall of the motor rotor (10) and located below the arc-shaped middle pressure block (35); An extrusion plate (37) is fixedly connected to one side of the outer wall of the arc-shaped lower pressing block (36), and an extrusion block (38) is fixedly connected to one end of the extrusion plate (37), and the extrusion block (38) is fixedly connected to another sleeve column (9).

10. The motor rotor strength testing device according to claim 9, characterized in that: The arc-shaped middle pressure block (35) and the arc-shaped upper pressure block (33) are both slidably connected to the motor rotor (10), and the cross-sectional shapes of the arc-shaped upper pressure block (33) and the arc-shaped middle pressure block (35) are circular arcs.

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