Three-phase asynchronous motor operation testing device

Abstract

The utility model discloses a three-phase asynchronous motor operation testing device which is applied to the field of motor testing. The power motor rotates to drive the bidirectional lead screw to rotate, the bidirectional lead screw rotates to drive the sliding plate to move, the sliding plate moves to drive the supporting rod to move, the supporting rod moves to drive the lifting plate to move, the lifting plate moves to drive the universal wheels to move, and the universal wheels move to jack up the device, so that the purpose of convenient movement can be achieved, and the workload is reduced; a crank is rotated, the crank rotates to drive a transmission rod to rotate, the transmission rod rotates to drive a second bevel gear, the second bevel gear rotates to drive a first bevel gear to rotate, the first bevel gear rotates to drive a screw rod to rotate, the screw rod rotates to enable a lifting column to ascend and descend, and the lifting column ascends and descends to drive a test board to ascend and descend. The purpose of adjusting the height of the test bench can be achieved, the test cost is reduced, and the practicability and applicability are improved.

Description

Technical Field

[0001] The utility model relates to the field of motor testing, in particular to a three-phase asynchronous motor operation testing device. Background Art

[0002] After searching Chinese patents, the publication number is: CN207424204U, a three-phase asynchronous motor operation test device, including: a motor drive module to be tested, which is set to connect the input end to the AC power supply, and the output end is connected to the three-phase asynchronous motor to be tested, including a single-phase insulated gate bipolar transistor bridge rectifier circuit, which is used to drive the three-phase asynchronous motor to be tested to run, and when the three-phase asynchronous motor to be tested is running in the generating state, it will feed back energy to the power grid; a load module, which is fixedly connected to the output shaft of the three-phase asynchronous motor to be tested; a motor bearing platform, which is used to carry and fix the three-phase asynchronous motor to be tested and the load module; a data monitoring module, which is respectively connected to the motor drive module to be tested and the load module, and is used to collect the preset electrical parameters of the three-phase asynchronous motor to be tested and the load module, and determine the operating state of the three-phase asynchronous motor to be tested according to the preset electrical parameters. The three-phase asynchronous motor operation test device provided by the embodiment of the utility model can test the four-quadrant operation of the three-phase asynchronous motor.

[0003] The existing test device is not easy to move. Generally, the test device is fixed to the ground by bolts. When moving the test device, the bolts need to be removed, and then the test device is moved mechanically. After the test device is moved to the required position, the bolts are installed. The whole moving process is cumbersome, which increases the workload, reduces work efficiency, and has low practicality. The height of the test bench cannot be adjusted. Generally, the height of the test bench and the height of the load box are fixed, and only motors of a specific size can be tested. If you want to test motors of different sizes, you need to replace the test device, which increases the cost of the test and reduces practicality and applicability. In order to solve the above problems, we propose a three-phase asynchronous motor operation test device. Utility Model Content

[0004] The utility model aims to provide a three-phase asynchronous motor operation test device, which has the advantages of being easy to move and capable of adjusting the height of the test bench.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a three-phase asynchronous motor operation test device, including a base, a power motor is bolted to the surface of the base, the output end of the power motor extends to the inside of the base and is connected to a bidirectional screw rod through a coupling, and the other end of the bidirectional screw rod is rotatably connected to the inner wall of the base, a slide plate is threadedly connected to the surface of the bidirectional screw rod, a support rod is hinged to the bottom of the slide plate, a lifting plate is hinged to the other end of the support rod, a universal wheel is bolted to the bottom of the lifting plate, and a fixing column is bolted to the top of the base The interior of the fixed column is slidably sleeved with a lifting column, the inner wall of the lifting column is threadedly connected with a screw, the surface of the screw is rotatably sleeved with a fixing plate, and the fixing plate is bolted to the inner wall of the fixed column, the surface of the screw is fixedly sleeved with a first bevel gear, the surface of the first bevel gear is meshed with a second bevel gear, the axis of the second bevel gear is fixedly sleeved with a transmission rod, and the transmission rod is rotatably sleeved with the inner wall of the fixed column, the top of the lifting column is bolted with a test bench, the top of the test bench is bolted with a three-phase asynchronous motor, and a testing mechanism is provided on the top of the base.

[0006] By adopting the above technical scheme, the two-way screw rod is driven to rotate by the rotation of the power motor, the two-way low rod is driven to move the skateboard, the skateboard movement drives the support rod to move, the support rod movement drives the lifting plate to move, the lifting plate movement drives the universal wheel to move, and the universal wheel movement lifts the device in a manner that can achieve the purpose of easy movement, reduce workload, and improve practicality. By turning the crank, the crank rotation drives the transmission rod to rotate, the transmission rod rotation drives the second bevel gear, the second bevel gear rotation drives the first bevel gear to rotate, the first bevel gear rotation drives the screw rod to rotate, the screw rotation causes the lifting column to rise and fall, and the lifting of the lifting column drives the test bench to rise and fall. The purpose of adjusting the height of the test bench can be achieved, reducing the test cost and improving practicality and applicability.

[0007] The utility model is further configured as follows: the test mechanism includes a control cabinet, the bottom of the control cabinet is bolted to the top of the base, the top of the control cabinet is bolted with a load box, and the rotating shaft of the load box is connected to the output end of the three-phase asynchronous motor through a coupling.

[0008] By adopting the above technical solution and setting up a testing mechanism, testing is facilitated.

[0009] The utility model is further configured as follows: the surfaces of the slide plate and the lifting plate are both bolted with a first sliding block, the surface of the first sliding block is slidably connected with a first sliding groove, and the first sliding groove is opened on the inner wall of the base.

[0010] By adopting the above technical solution, the first sliding block and the first sliding groove are provided to prevent the lifting plate and the sliding plate from deflecting, thereby ensuring stability.

[0011] The utility model is further configured as follows: a second sliding block is bolted on the surface of the lifting column, a second sliding groove is slidably connected on the surface of the second sliding block, and the second sliding groove is opened on the inner wall of the fixing column.

[0012] By adopting the above technical solution, the second sliding block and the second sliding groove are provided to prevent the lifting column from deflecting and ensure stability.

[0013] The utility model is further configured as follows: a protective shell is bolted to the surface of the base, and the power motor is located inside the protective shell.

[0014] By adopting the above technical solution, a protective shell is provided to protect the power motor.

[0015] The utility model is further configured as follows: a foot is bolted to the bottom of the base.

[0016] By adopting the above technical solution and setting the feet, the stability of the device is improved.

[0017] The utility model is further configured as follows: one end of the transmission rod is bolted with a crank.

[0018] By adopting the above technical solution, the transmission rod can be easily rotated by arranging a crank.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. The utility model drives the two-way screw rod to rotate by the rotation of the power motor, the two-way low rod rotates to drive the slide plate to move, the slide plate moves to drive the support rod to move, the support rod moves to drive the lifting plate to move, the lifting plate moves to drive the universal wheel to move, and the universal wheel moves to lift the device, which can achieve the purpose of easy movement, reduce the workload and improve practicality;

[0021] 2. The utility model achieves the purpose of adjusting the height of the test bench by rotating the crank, which drives the transmission rod to rotate, which drives the second bevel gear to rotate, which drives the first bevel gear to rotate, which drives the screw to rotate, which drives the lifting column to rise and fall, and the lifting of the lifting column drives the test bench to rise and fall, thereby reducing the testing cost and improving practicality and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the structure of the utility model;

[0023] Figure 2 It is a side sectional view of a local structure of the utility model;

[0024] Figure 3 This utility model Figure 1 A magnified view of the structure in the middle.

[0025] Figure numerals: 1. base; 2. power motor; 3. bidirectional lead screw; 4. slide plate; 5. support rod; 6. lifting plate; 7. universal wheel; 8. fixed column; 9. lifting column; 10. screw; 11. fixed plate; 12. first bevel gear; 13. second bevel gear; 14. transmission rod; 15. test bench; 16. three-phase asynchronous motor; 17. test mechanism; 18. control cabinet; 19. load box; 20. first slider; 21. first slide slot; 22. second slider; 23. second slide slot; 24. protective shell; 25. foot; 26. crank. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] refer to Figure 1 and Figure 2 A three-phase asynchronous motor operation test device comprises a base 1, a power motor 2 is bolted to the surface of the base 1, the output end of the power motor 2 extends to the inside of the base 1 and is connected to a bidirectional screw rod 3 through a coupling, and the other end of the bidirectional screw rod 3 is rotatably connected to the inner wall of the base 1, a slide plate 4 is threadedly connected to the surface of the bidirectional screw rod 3, a support rod 5 is hinged to the bottom of the slide plate 4, a lifting plate 6 is hinged to the other end of the support rod 5, and a universal wheel 7 is bolted to the bottom of the lifting plate 6. The bidirectional screw rod 3 is driven to rotate by the rotation of the power motor 2, the rotation of the bidirectional low rod drives the slide plate 4 to move, the movement of the slide plate 4 drives the support rod 5 to move, the movement of the support rod 5 drives the lifting plate 6 to move, the movement of the lifting plate 6 drives the universal wheel 7 to move, and the way in which the universal wheel 7 moves to lift the device can achieve the purpose of easy movement, reduce the workload, and improve practicality.

[0029] refer to Figure 2 The surfaces of the slide plate 4 and the lifting plate 6 are both bolted with a first slider 20, the surface of the first slider 20 is slidably connected with a first slide groove 21, and the first slide groove 21 is opened on the inner wall of the base 1. By arranging the first slider 20 and the first slide groove 21, the lifting plate 6 and the slide plate 4 are prevented from deflecting and stability is ensured.

[0030] refer to Figure 1 A protective shell 24 is bolted to the surface of the base 1, and the power motor 2 is located inside the protective shell 24. The power motor 2 is protected by providing the protective shell 24.

[0031] refer to Figure 1 and Figure 2 The bottom of the base 1 is bolted with a foot 25, and the stability of the device is improved by providing the foot 25.

[0032] Embodiment 2:

[0033] refer to Figure 1 and Figure 3 A fixing column 8 is bolted to the top of the base 1, a lifting column 9 is slidably sleeved inside the fixing column 8, a screw 10 is threadedly connected to the inner wall of the lifting column 9, a fixing plate 11 is rotatably sleeved on the surface of the screw 10, and the fixing plate 11 is bolted to the inner wall of the fixing column 8, a first bevel gear 12 is fixedly sleeved on the surface of the screw 10, a second bevel gear 13 is meshed on the surface of the first bevel gear 12, a transmission rod 14 is fixedly sleeved at the axis of the second bevel gear 13, and the transmission rod 14 is rotatably sleeved with the inner wall of the fixing column 8, a test bench 15 is bolted to the top of the lifting column 9, and a test bench 15 is bolted to the top of the lifting column 9. A three-phase asynchronous motor 16 is bolted to the top of the platform 15, and a testing mechanism 17 is provided on the top of the base 1. By rotating the crank 26, the crank 26 drives the transmission rod 14 to rotate, the transmission rod 14 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the first bevel gear 12 to rotate, the first bevel gear 12 drives the screw 10 to rotate, the screw 10 rotates to make the lifting column 9 rise and fall, and the lifting column 9 drives the test platform 15 to rise and fall, so as to achieve the purpose of adjusting the height of the test platform 15, reduce the testing cost, and improve the practicality and applicability.

[0034] refer to Figure 1 The test mechanism 17 includes a control cabinet 18, the bottom of the control cabinet 18 is bolted to the top of the base 1, a load box 19 is bolted to the top of the control cabinet 18, and the rotating shaft of the load box 19 is connected to the output end of the three-phase asynchronous motor 16 through a coupling. By setting up the test mechanism 17, testing is convenient.

[0035] refer to Figure 3 A second slider 22 is bolted to the surface of the lifting column 9, and a second slide groove 23 is slidably connected to the surface of the second slider 22, and the second slide groove 23 is opened on the inner wall of the fixed column 8. By arranging the second slider 22 and the second slide groove 23, the lifting column 9 is prevented from deflecting and stability is ensured.

[0036] refer to Figure 3 One end of the transmission rod 14 is bolted with a crank 26, and the transmission rod 14 is easily rotated by providing the crank 26.

[0037] The use process is briefly described as follows: the power motor 2 rotates to drive the bidirectional lead screw 3 to rotate, the bidirectional low rod rotates to drive the slide plate 4 to move, the slide plate 4 moves to drive the support rod 5 to move, the support rod 5 moves to drive the lifting plate 6 to move, the lifting plate 6 moves to drive the universal wheel 7 to move, the universal wheel 7 moves to lift the device, and after the device is moved to the required position, the power motor 2 rotates in the opposite direction, the universal wheel 7 is retracted, and the foot 25 falls to the ground to complete the movement, thereby achieving the purpose of facilitating movement; the crank 26 is turned, and the crank 26 rotates to drive the transmission rod 14 to rotate, the transmission rod 14 rotates to drive the second bevel gear 13, the second bevel gear 13 rotates to drive the first bevel gear 12 to rotate, the first bevel gear 12 rotates to drive the screw 10 to rotate, the screw 10 rotates to make the lifting column 9 rise and fall, and the lifting column 9 lifts and lowers the test bench 15, the output end of the motor is adjusted to be consistent with the rotating shaft of the load box 19, and they are connected through a coupling for testing, thereby achieving the purpose of adjusting the height of the test bench 15.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A three-phase asynchronous motor operation test device, comprising a base (1), characterized in that: The surface of the base (1) is bolted with a power motor (2), the output end of the power motor (2) extends to the inside of the base (1) and is connected to a bidirectional screw rod (3) through a coupling, and the other end of the bidirectional screw rod (3) is rotatably connected to the inner wall of the base (1), the surface of the bidirectional screw rod (3) is threadedly connected to a slide plate (4), the bottom of the slide plate (4) is hinged with a support rod (5), the other end of the support rod (5) is hinged with a lifting plate (6), the bottom of the lifting plate (6) is bolted with a universal wheel (7), the top of the base (1) is bolted with a fixing column (8), the interior of the fixing column (8) is slidably sleeved with a lifting column (9), and the inner wall of the lifting column (9) is threadedly connected to A screw rod (10) is connected, a fixed plate (11) is rotatably sleeved on the surface of the screw rod (10), and the fixed plate (11) is bolted to the inner wall of the fixed column (8), a first bevel gear (12) is fixedly sleeved on the surface of the screw rod (10), a second bevel gear (13) is meshed on the surface of the first bevel gear (12), a transmission rod (14) is fixedly sleeved at the axis of the second bevel gear (13), and the transmission rod (14) is rotatably sleeved on the inner wall of the fixed column (8), a test bench (15) is bolted to the top of the lifting column (9), a three-phase asynchronous motor (16) is bolted to the top of the test bench (15), and a testing mechanism (17) is arranged on the top of the base (1).

2. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: The testing mechanism (17) comprises a control cabinet (18), the bottom of the control cabinet (18) is bolted to the top of the base (1), the top of the control cabinet (18) is bolted to a load box (19), and the rotating shaft of the load box (19) is connected to the output end of the three-phase asynchronous motor (16) through a coupling.

3. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: The surfaces of the slide plate (4) and the lifting plate (6) are both bolted with a first sliding block (20), the surface of the first sliding block (20) is slidably connected with a first sliding groove (21), and the first sliding groove (21) is opened on the inner wall of the base (1).

4. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: A second sliding block (22) is bolted to the surface of the lifting column (9), a second sliding groove (23) is slidably connected to the surface of the second sliding block (22), and the second sliding groove (23) is provided on the inner wall of the fixed column (8).

5. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: A protective shell (24) is bolted to the surface of the base (1), and the power motor (2) is located inside the protective shell (24).

6. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: The bottom of the base (1) is bolted with a foot (25).

7. A three-phase asynchronous motor operation test device according to claim 1, characterized in that: One end of the transmission rod (14) is bolted with a crank (26).

Images