Motor loading test device

Abstract

The invention discloses a motor loading test device, and relates to the technical field of motor testing, the motor loading test device has the advantage of facilitating installation and replacement of a tested motor, the key points of the technical scheme are that the motor loading test device comprises a bottom plate and a motor test assembly arranged at one side of the top end of the bottom plate, and is characterized in that the top end of the bottom plate is provided with two groups of placing racks for placing the motor to be tested; each group of placing racks comprises two supporting seats, a to-be-tested motor is placed on the four supporting seats, the four supporting seats are in one-to-one correspondence with four mounting holes in the to-be-tested motor, two opposite arc-shaped positioning plates are vertically arranged on each of the four supporting seats, and the top ends of the two positioning plates on the supporting seats penetrate through the mounting holes of the to-be-tested motor. The four supporting seats are respectively provided with an installation part which is used for installing a to-be-tested motor on the supporting seats through installation holes in the to-be-tested motor.

Description

Technical Field

[0001] The invention relates to the technical field of motor testing, and in particular to a motor loading test device. Background Art

[0002] Electric motors, commonly known as motors, refer to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Electric motors usually include a stator and a rotor. The stator includes a stator core and a coil winding wound on the stator core. The rotor includes a rotating shaft and a rotor core sleeved on the rotating shaft. A permanent magnet is provided on the outer edge of the rotor core. According to the type of working power supply, electric motors are divided into DC motors and AC motors. After the motor is produced and processed, the working performance of the motor needs to be tested to determine whether the produced motor meets the standards.

[0003] At present, a Chinese patent with application number CN201720972335.9 on the market discloses a test device for variable speed motor loading, including a motor fixing assembly and a motor testing assembly; the motor fixing assembly includes a fixing bracket for fixing the motor to be tested, the fixing bracket includes a front side plate and a rear side plate arranged opposite to each other, a motor fixing plate is arranged between the front side plate and the rear side plate, and the motor fixing plate is connected to the motor support plate; the motor testing assembly includes a torque sensor, one end of the torque sensor is connected to the transmission assembly, the transmission assembly is connected to the motor to be tested, and the other end is connected to the brake shaft, and the brake shaft is connected to the brake assembly.

[0004] In the above-mentioned prior art, there is no specific disclosure of the connection structure between the motor to be tested and the motor support plate. The currently common connection structure is mostly to install the motor to be tested on the motor support plate by cooperating with multiple bolts and mounting holes on the motor to be tested. Installing the motor to be tested on the motor support plate by bolts requires rotating multiple bolts, which is cumbersome to use and inconvenient to install and replace the motor to be tested. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a motor loading test device, which has the advantage of being easy to install and replace the motor under test.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a motor loading test device, comprising a base plate and a motor test assembly arranged on one side of the top end of the base plate, wherein the top end of the base plate is provided with two groups of placement racks for placing the motor to be tested, and each group of the placement racks comprises two support seats, the motor to be tested is placed on four support seats, and the four support seats correspond one to one to four mounting holes on the motor to be tested, two opposite arc-shaped positioning plates are vertically provided on the four support seats, and the top ends of the two positioning plates on the support seats pass through the mounting holes of the motor to be tested, and the four support seats are provided with mounting parts for mounting the motor to be tested on the support seats through the mounting holes on the motor to be tested.

[0007] By adopting the above technical solution, when in use, the four mounting holes on the motor to be tested are aligned with the positioning plates on the four support seats and inserted, and at this time the top ends of the two positioning plates on the support seats will both pass through the mounting holes of the motor to be tested, and the motor to be tested can be positioned on the four support seats, and then the motor to be tested can be installed on the four support seats through the cooperation of the mounting parts on the four support seats and the mounting holes on the motor to be tested, which is convenient for installation and replacement of the motor to be tested and easy to use. After the installation is completed, the output end of the motor to be tested is connected to the motor test assembly, and the motor to be tested can be tested through the motor test assembly.

[0008] The two cams are connected to each other with a plurality of locking plates, each of which has a plurality of locking plates, each of which has a plurality of locking plates at its top and a plurality of locking plates at its bottom.

[0009] Preferably, the first limiting member comprises a limiting plate horizontally arranged between two positioning plates, the rotating shaft on the rotating plate corresponds to the limiting plate, and the right side of the rotating plate contacts the limiting plate.

[0010] Preferably, the second limiting member includes an arc-shaped groove opened on the front side of the rotating plate, a column is horizontally arranged between the two baffles, the column is located in the arc-shaped groove, the bottom end groove wall of the arc-shaped groove is in contact with the column, and the end of the arc-shaped groove away from the column is located above the rotating shaft.

[0011] Preferably, a rectangular frame is installed on the top of the base plate, and two relative slides are horizontally slidably connected between the left and right sides of the rectangular frame. The two groups of placement racks correspond to the two slides respectively. At this time, the two support seats in the placement racks are both arranged on the slides, and the rectangular frame is provided with a first moving part for simultaneously driving the two slides to move closer to or away from each other.

[0012] Preferably, the first moving member includes a first screw rod rotatably connected between the front and rear sides of the rectangular frame and a sliding column horizontally arranged between the opposite sides of the rectangular frame, the sliding column is opposite to and parallel to the first screw rod, and through holes are provided on the two sliding seats, one end of the sliding column passes horizontally through the two through holes, one end of the first screw rod passes through the two sliding seats and is threadedly connected to the two sliding seats, the first screw rod is provided with two threads with opposite rotation directions, the two sliding seats are respectively threadedly connected to the two threads of the first screw rod, and the rectangular frame is provided with a first motor for driving the first screw rod to rotate.

[0013] Preferably, the top ends of the two slides are provided with a slide groove along the length direction of the slide, the two support seats in the placement rack are horizontally slidably connected in the slide groove, and the two slides are provided with a second moving part for simultaneously driving the two support seats in the placement rack to move closer to or away from each other in the slide groove.

[0014] Preferably, the second movable member includes two side plates arranged at the top of the slide seat, and a second screw rod is rotatably connected between the two side plates, a push plate is provided on one side of the two support seats in the placement frame, and the two push plates are located between the two side plates, one end of the second screw rod passes through the two push plates and is threadedly connected to the two push plates, the second screw rod is provided with two threads with opposite rotation directions, the two push plates are respectively threadedly connected to the two threads of the second screw rod, and the slide seat is provided with a second motor for driving the second screw rod to rotate.

[0015] Preferably, two first mounting rings are provided on both the front and rear sides of the rectangular frame, and the two first mounting rings are opposite to each other on the left and right, and the four first mounting rings are mounted on the bottom plate by bolts, and the rectangular frame is horizontal at this time.

[0016] Preferably, two second mounting rings are provided on the front and rear sides of the rectangular frame, and the two second mounting rings are opposite to each other up and down, and the four second mounting rings are installed on the bottom plate by bolts. At this time, the rectangular frame is vertical, and the two slides in the rectangular frame are horizontally slidably connected between the upper and lower sides of the rectangular frame. The slide groove is vertically arranged on one side of the slide seat, and the two side plates on the slide seat are opposite to each other up and down. The end of the positioning plate away from the support seat passes through the mounting hole of the motor to be tested, and the circular groove is located on one side of the support seat. The electric cylinder in the circular groove is horizontal, and the two baffles are horizontally arranged on one side of the disc. The rotating plate is horizontally located outside the circular groove, and the counterweight block is located at the lower right side of the rotating plate.

[0017] The beneficial effect of the present invention is that when in use, the four mounting holes on the motor to be tested are aligned with the positioning plates on the four support seats and inserted, and at this time the top ends of the two positioning plates on the support seats will both pass through the mounting holes of the motor to be tested, and the motor to be tested can be positioned on the four support seats, and then the motor to be tested can be installed on the four support seats through the cooperation of the mounting parts on the four support seats and the mounting holes on the motor to be tested, which is convenient for installation and replacement of the motor to be tested and easy to use. After the installation is completed, the output end of the motor to be tested is connected to the motor test assembly, and the motor to be tested can be tested through the motor test assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of this embodiment; Figure 2 This is a schematic diagram of the structure of the push plate in this embodiment; Figure 3 This is a schematic diagram of the structure of the rotating plate in this embodiment; Figure 4 This is a schematic diagram of the structure of the disc in this embodiment; Figure 5 This is a schematic diagram of the structure of the arc-shaped through groove in this embodiment; Figure 6 This is a schematic diagram of the structure of the slide seat in this embodiment; Figure 7 It is a schematic diagram of the structure when the rectangular frame is vertical and the mounting hole on the motor to be tested is aligned with the positioning plate and inserted; Figure 8 It is a structural schematic diagram of the output end of the motor to be tested passing through between two slides when the rectangular frame is vertical; Fig. 9 When the rectangular frame is vertical, the rotating plate mounts the motor to be tested on the mounting base; Fig.10 for Figure 7 A schematic diagram of the structure of the middle A part; Fig.11 Schematic diagram of the structure where the mounting hole is on the output side of the motor to be tested.

[0020] Description of reference numerals: In the figure: 1, bottom plate; 2, motor to be tested; 3, support seat; 4, mounting hole; 5, positioning plate; 6, rotating plate; 7, circular groove; 8, electric cylinder; 9, disc; 10, baffle plate; 12, rotating groove; 13, rotating shaft; 14, counterweight; 15, limiting plate; 16, arc-shaped through groove; 17, column; 18, rectangular frame; 19, slide seat; 20, first screw rod; 21, slide column; 22, through hole; 23, first motor; 24, slide groove; 25, side plate; 26, second screw rod; 27, push plate; 28, second motor; 29, first mounting ring; 30, second mounting ring. DETAILED DESCRIPTION

[0021] 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.

[0022] A motor loading test device comprises a base plate 1 and a motor test assembly arranged on one side of the top of the base plate 1, such as Figure 1 and Figure 2 Two groups of placement racks for placing the motor 2 to be tested are provided at the top of the base plate 1, and each group of placement racks includes two support seats 3. The motor 2 to be tested is placed on the four support seats 3, and the four support seats 3 correspond to the four mounting holes 4 on the motor 2 to be tested one by one. Two opposite arc-shaped positioning plates 5 are vertically provided on the four support seats 3, and the tops of the two positioning plates 5 on the support seats 3 pass through the mounting holes 4 of the motor 2 to be tested. The four support seats 3 are provided with mounting parts for mounting the motor 2 to be tested on the support seats 3 through the mounting holes 4 on the motor 2 to be tested.

[0023] like Figure 1 and Figure 2 When in use, the four mounting holes 4 on the motor 2 to be tested are aligned with the positioning plates 5 on the four support seats 3 and inserted. At this time, the top ends of the two positioning plates 5 on the support seats 3 will both pass through the mounting holes 4 of the motor 2 to be tested. At this time, the motor 2 to be tested can be positioned and placed on the four support seats 3, and then the motor 2 to be tested can be installed on the four support seats 3 through the cooperation of the mounting parts on the four support seats 3 and the mounting holes 4 on the motor 2 to be tested. It is convenient to install and replace the motor to be tested and easy to use. After the installation is completed, the output end of the motor 2 to be tested is connected to the motor test assembly, and the motor 2 to be tested can be tested through the motor test assembly.

[0024] The motor test component can be a motor test component in a test device for variable speed motor loading as described in CN201720972335.9, and this application will not describe it in detail here.

[0025] like Figure 2 and Figure 3 and Figure 4 The mounting member includes a rotating plate 6 and a circular groove 7 arranged at the top of the support seat 3. The bottom ends of the two positioning plates 5 on the support seat 3 are both located in the circular groove 7, and the outer side of the positioning plate 5 is fixedly connected to the groove wall of the circular groove 7. An electric cylinder 8 is vertically arranged in the circular groove 7, and one end of the piston rod of the electric cylinder 8 is upward and provided with a disc 9. Two opposite baffles 10 are vertically arranged on the top of the disc 9, and the two baffles 10 are located between the two positioning plates 5. The sides of the two baffles 10 that are away from each other are both arc-shaped surfaces that fit and contact with the inner side of the positioning plate 5. The sides of the two baffles 10 that are close to each other are both provided with a rotating groove 12. The rotating plate 6 has two opposite sides. A rotating shaft 13 is provided in the center, the rotating plate 6 is located between the two baffles 10, and the two rotating shafts 13 on the rotating plate 6 are respectively rotatably connected in the two rotating grooves 12, the rotating plate 6 is vertically located outside the circular groove 7, and a counterweight block 14 is provided on the left side of the top end of the rotating plate 6. The two positioning plates 5 are provided with a first limiting member for limiting the rotating plate 6 so that it cannot rotate, and the two baffles 10 are provided with a second limiting member for limiting the rotation angle of the rotating plate 6. The first limiting member includes a limiting plate 15 horizontally arranged between the two positioning plates 5, the rotating shaft 13 on the rotating plate 6 corresponds to the limiting plate 15, and the right side of the rotating plate 6 is in contact with the limiting plate 15.

[0026] like Figure 2 and Figure 3 and Figure 4 , the rotating plate 6 can be restricted by the limiting plate 15 so that it cannot rotate and remains in a vertical state. After the motor 2 to be tested is positioned and placed on the four support seats 3, the piston rod of the electric cylinder 8 drives the disc 9 to move toward the bottom of the circular groove 7. At this time, the counterweight 14, the rotating plate 6, the two baffles 10 and the rotating shaft 13 will move with the disc 9. When the rotating shaft 13 moves to the lower side of the limiting plate 15, the restriction of the limiting plate 15 on the rotating plate 6 can be automatically released. At this time, due to the counterweight 14 The second limiting member is located on the left side of the top of the rotating plate 6, so when the limiting plate 15 releases the restriction on the rotating plate 6, the counterweight 14 will drive the rotating plate 6 to rotate along the axis of the rotating shaft 13. When the rotating plate 6 rotates 90 degrees, the second limiting member restricts the rotating plate 6 so that it cannot continue to rotate. At this time, the rotating plate 6 is horizontal, and then the piston rod of the electric cylinder 8 continues to drive the disc 9 to move toward the bottom of the circular groove 7 until the horizontal rotating plate 6 contacts the top of the mounting hole 4 on the motor 2 to be tested and presses it against the support seat 3 (such as Figure 6 ), at this time, the motor 2 to be tested can be installed on the four support bases 3, and the installation is simple; When it is necessary to replace the motor 2 to be tested, it is only necessary to drive the disc 9 to move away from the bottom of the circular groove 7 through the piston rod of the electric cylinder 8, so that the horizontal rotating plate 6 is away from the mounting hole 4 of the motor 2 to be tested. At this time, the horizontal rotating plate 6 will be close to the limiting plate 15. When the horizontal rotating plate 6 moves to contact the bottom end of the limiting plate 15, and the piston rod of the electric cylinder 8 continues to drive the disc 9 to move away from the bottom of the circular groove 7, the limiting plate 15 will drive the horizontal rotating plate 6 to rotate in the opposite direction until the rotating plate 6 rotates to the vertical again, and then the electric cylinder 8 stops working. At this time, the limiting plate 15 will limit the rotating plate 6 in the vertical state, and then the motor 2 to be tested can be replaced. Replacing the motor 2 to be tested is simple and convenient to use.

[0027] like Figure 5 The second limiting member includes an arc-shaped through groove 16 opened on the front side of the rotating plate 6, and a column 17 is horizontally arranged between the two baffles 10. The column 17 is located in the arc-shaped through groove 16, and the bottom end groove wall of the arc-shaped through groove 16 contacts the column 17. The end of the arc-shaped through groove 16 away from the column 17 is located above the rotating shaft 13. The purpose of this setting is to limit the rotation angle of the rotating plate 6 by cooperating with the arc-shaped through groove 16 and the column 17, thereby reducing the situation where the end of the rotating plate 6 provided with the counterweight block 14 continues to rotate downward after the rotating plate 6 rotates to a horizontal state.

[0028] like Figure 1 and Figure 2 A rectangular frame 18 is installed on the top of the bottom plate 1, and two relative slides 19 are horizontally slidably connected between the left and right sides of the rectangular frame 18. The two groups of placement racks correspond to the two slides 19 respectively. At this time, the two support seats 3 in the placement rack are both arranged on the slides 19. The rectangular frame 18 is provided with a first moving member for simultaneously driving the two slides 19 to approach or move away from each other. The purpose of this setting is to simultaneously drive the two slides 19 to approach or move away from each other in the rectangular frame 18 through the first moving member. At this time, the two support seats 3 in the placement rack will move with the slide 19. At this time, the spacing between the two groups of placement racks can be adjusted to adapt to the motors 2 to be tested of different specifications. It is simple and convenient to use.

[0029] like Figure 2 The first moving member includes a first screw rod 20 rotatably connected between the front and rear sides of the rectangular frame 18 and a slide column 21 horizontally arranged between the opposite sides of the rectangular frame 18. The slide column 21 is opposite to and parallel to the first screw rod 20. Through holes 22 are provided on the two slide seats 19. One end of the slide column 21 passes horizontally through the two through holes 22. One end of the first screw rod 20 passes through the two slide seats 19 and is threadedly connected to the two slide seats 19. The first screw rod 20 is provided with two threads with opposite rotation directions. The two slide seats 19 are respectively threadedly connected to the two threads of the first screw rod 20. The rectangular frame 18 is provided with a first motor 23 for driving the first screw rod 20 to rotate.

[0030] like Figure 2 When it is necessary to drive the two slides 19 to move closer to or away from each other in the rectangular frame 18 at the same time, it is only necessary to turn on the first motor 23, and the rotating shaft of the first motor 23 drives the first screw rod 20 to rotate. At this time, because the first screw rod 20 is provided with two threads with opposite rotation directions, the two slides 19 are respectively threadedly connected to the two threads of the first screw rod 20. Therefore, when the first screw rod 20 rotates, the two slides 19 can be driven to move closer to or away from each other in the rectangular frame 18 at the same time. By cooperating with the slide column 21 and the through hole 22 on the slide 19, the stability of the slide 19 during horizontal movement can be improved.

[0031] like Figure 2 The top ends of the two slides 19 are provided with slide grooves 24 along the length direction of the slides 19, and the two support seats 3 in the placement rack are horizontally slidably connected in the slide grooves 24. The two slides 19 are provided with a second moving member for simultaneously driving the two support seats 3 in the placement rack to move closer to or away from each other in the slide grooves 24. The second moving member includes two side plates 25 arranged at the top ends of the slides 19, and a second screw rod 26 is rotatably connected between the two side plates 25. One side of the two support seats 3 in the placement rack is provided with a push plate 27, and the two push plates 27 are located between the two side plates 25. One end of the second screw rod 26 passes through the two push plates 27 and is threadedly connected to the two push plates 27. The second screw rod 26 is provided with two threads in opposite directions of rotation, and the two push plates 27 are respectively threadedly connected to the two threads of the second screw rod 26. The slide 19 is provided with a second motor 28 for driving the second screw rod 26 to rotate.

[0032] like Figure 2 By turning on the second motor 28, the rotating shaft of the second motor 28 drives the second screw rod 26 to rotate. At this time, because the second screw rod 26 is provided with two threads with opposite rotation directions, the two push plates 27 are respectively threadedly connected to the two threads of the second screw rod 26. Therefore, when the second screw rod 26 rotates, the two push plates 27 can be used to drive the two support seats 3 to move closer to or away from each other in the slide groove 24. At this time, the distance between the two support seats 3 in the placement rack can be adjusted to adapt to motors 2 to be tested of different specifications. It is simple and convenient to use.

[0033] Two electric cylinders 1 (not shown in the figure) are provided on the rectangular frame 18. The two electric cylinders 1 are used to push the two slides 19 to move horizontally respectively. At this time, the electric cylinder 1 replaces the first motor 23 and the first screw rod 20. The two support seats 3 in the slide groove 24 are the first support seat 3 and the second support seat 3 respectively. The second support seat 3 is fixedly connected to the groove wall of the slide groove 24. The slide 19 is provided with an electric cylinder 2 (not shown in the figure) for pushing the first support seat 3 to move in the slide groove 24 toward the direction close to the second support seat 3. At this time, the electric cylinder 2 replaces the second screw rod 26 and the second motor 28.

[0034] like Figure 1 and Figure 2 Two first mounting rings 29 are provided on the front and rear sides of the rectangular frame 18, and the two first mounting rings 29 are opposite to each other on the left and right. The four first mounting rings 29 are installed on the base plate 1 by bolts. At this time, the rectangular frame 18 is horizontal. The purpose of this setting is that the rectangular frame 18 can be horizontally installed on the base plate 1 through the first mounting rings 29 and the bolts, and the disassembly and assembly are simple.

[0035] like Figure 1 , two second mounting rings 30 are provided on both the front and rear sides of the rectangular frame 18, and the two second mounting rings 30 are opposite to each other up and down, such as Figure 7 and Fig.10 , the four second mounting rings 30 are all mounted on the base plate 1 by bolts. At this time, the rectangular frame 18 is vertical, the two slides 19 in the rectangular frame 18 are horizontally slidably connected between the upper and lower sides of the rectangular frame 18, the slide groove 24 is vertically arranged on one side of the slide 19, and the two side plates 25 on the slide 19 are opposite to each other up and down. The end of the positioning plate 5 away from the support seat 3 passes through the mounting hole 4 of the motor 2 to be tested, the circular groove 7 is located on one side of the support seat 3, the electric cylinder 8 in the circular groove 7 is horizontal, the two baffles 10 are horizontally arranged on one side of the disc 9, the rotating plate 6 is horizontally located outside the circular groove 7, and the counterweight 14 is located at the lower right side of the rotating plate 6.

[0036] like Figure 7 and Fig.10 , the rectangular frame 18 can be vertically mounted on the bottom plate 1 through the second mounting ring 30 and the bolts. When the rectangular frame 18 is vertically mounted, the four mounting holes 4 on the motor 2 to be tested are aligned with the positioning plates 5 on the four support seats 3 and inserted. At this time, the positioning plates 5 on the support seats 3 can be used to position the motor 2 to be tested, and the motor 2 to be tested will not fall. Then, through the cooperation of the electric cylinder 8, the disc 9 and the baffle 10, the rotating plate 6 is horizontally close to the support seat 3, and the restriction of the limiting plate 15 on the rotating plate 6 is automatically released. At this time, due to the counterweight The block 14 is located at the lower right side of the rotating plate 6, so when the limiting plate 15 releases the restriction on the rotating plate 6, the counterweight block 14 will drive the rotating plate 6 to rotate along the axis of the rotating shaft 13. When the rotating plate 6 rotates 90 degrees, the rotating plate 6 is vertical, and then the rotating plate 6 continues to approach the support seat 3 until the vertical rotating plate 6 contacts one side of the mounting hole 4 on the motor 2 to be tested and presses it on the support seat 3. At this time, the motor 2 to be tested can be installed on the four support seats 3. At this time, the output end of the motor 2 to be tested passes between the two slide seats 19 (such as Figure 8 and Fig. 9 ), easy to install, such as Fig.11 , which is applicable to the motor 2 to be tested whose mounting hole 4 is located at the output end side of the motor 2 to be tested.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A motor loading test device, comprising a base plate (1) and a motor test assembly arranged on one side of the top of the base plate (1), characterized in that: Two groups of placement racks for placing the motor to be tested (2) are provided at the top of the base plate (1), each group of the placement racks comprises two support seats (3), the motor to be tested (2) is placed on the four support seats (3), and the four support seats (3) correspond one to one with the four mounting holes (4) on the motor to be tested (2), two opposite arc-shaped positioning plates (5) are vertically provided on the four support seats (3), and the top ends of the two positioning plates (5) on the support seats (3) pass through the mounting holes (4) of the motor to be tested (2), and the four support seats (3) are provided with mounting parts for mounting the motor to be tested (2) on the support seats (3) through the mounting holes (4) on the motor to be tested (2).

2. A motor loading test device as claimed in claim 1, characterized in that: The mounting member comprises a rotating plate (6) and a circular groove (7) arranged at the top end of the support seat (3); the bottom ends of the two positioning plates (5) on the support seat (3) are both located in the circular groove (7); the outer sides of the positioning plates (5) are fixedly connected to the groove wall of the circular groove (7); an electric cylinder (8) is vertically arranged in the circular groove (7); one end of the piston rod of the electric cylinder (8) faces upward and is provided with a circular disc (9); two opposing baffles (10) are vertically arranged at the top end of the circular disc (9); the two baffles (10) are both located between the two positioning plates (5); the sides of the two baffles (10) facing away from each other are both arc-shaped surfaces that are in contact with the inner side of the positioning plate (5); the two baffles (10) are arranged in a circular groove (7); and ... A rotating groove (12) is provided on the mutually adjacent sides of the baffle plates (10); a rotating shaft (13) is provided at the center of the opposite sides of the rotating plate (6); the rotating plate (6) is located between the two baffle plates (10); and the two rotating shafts (13) on the rotating plate (6) are rotatably connected in the two rotating grooves (12), respectively; the rotating plate (6) is vertically located outside the circular groove (7); a counterweight block (14) is provided on the left side of the top end of the rotating plate (6); a first limiting member for limiting the rotating plate (6) so that it cannot rotate is provided on the two positioning plates (5); and a second limiting member for limiting the rotation angle of the rotating plate (6) is provided on the two baffle plates (10).

3. A motor loading test device as claimed in claim 2, characterized in that: The first limiting member comprises a limiting plate (15) horizontally arranged between the two positioning plates (5); the rotating shaft (13) on the rotating plate (6) corresponds to the limiting plate (15); and the right side of the rotating plate (6) contacts the limiting plate (15).

4. A motor loading test device as claimed in claim 2, characterized in that: The second limiting member comprises an arc-shaped through groove (16) formed on the front side of the rotating plate (6); a column (17) is horizontally arranged between the two baffles (10); the column (17) is located in the arc-shaped through groove (16); a groove wall at the bottom end of the arc-shaped through groove (16) contacts the column (17); and an end of the arc-shaped through groove (16) away from the column (17) is located above the rotating shaft (13).

5. A motor loading test device as claimed in claim 2, characterized in that: A rectangular frame (18) is installed at the top of the bottom plate (1), and two opposing slide seats (19) are horizontally slidably connected between the left and right sides of the rectangular frame (18), and the two groups of placement racks correspond to the two slide seats (19) respectively. At this time, the two support seats (3) in the placement rack are both arranged on the slide seats (19), and the rectangular frame (18) is provided with a first moving member for simultaneously driving the two slide seats (19) to move closer to or away from each other.

6. A motor loading test device as claimed in claim 5, characterized in that: The first moving member comprises a first screw rod (20) rotatably connected between the front and rear sides of the rectangular frame (18) and a slide column (21) horizontally arranged between the opposite sides of the rectangular frame (18), the slide column (21) being opposite to and parallel to the first screw rod (20), the two slide seats (19) being each provided with a through hole (22), one end of the slide column (21) passing horizontally through the two through holes (22), one end of the first screw rod (20) passing through the two slide seats (19) and being threadedly connected to the two slide seats (19), the first screw rod (20) being provided with two threads with opposite rotation directions, the two slide seats (19) being respectively threadedly connected to the two threads of the first screw rod (20), and the rectangular frame (18) being provided with a first motor (23) for driving the first screw rod (20) to rotate.

7. A motor loading test device as claimed in claim 6, characterized in that: The top ends of the two slide seats (19) are provided with a slide groove (24) along the length direction of the slide seat (19); the two support seats (3) in the placement rack are horizontally slidably connected in the slide groove (24); and the two slide seats (19) are provided with a second moving member for simultaneously driving the two support seats (3) in the placement rack to move closer to or away from each other in the slide groove (24).

8. A motor loading test device as claimed in claim 7, characterized in that: The second movable member comprises two side plates (25) arranged at the top of the slide seat (19), and a second screw rod (26) is rotatably connected between the two side plates (25). A push plate (27) is provided on one side of the two support seats (3) in the placement frame, and the two push plates (27) are located between the two side plates (25). One end of the second screw rod (26) passes through the two push plates (27) and is threadedly connected to the two push plates (27). The second screw rod (26) is provided with two threads with opposite rotation directions. The two push plates (27) are respectively threadedly connected to the two threads of the second screw rod (26). The slide seat (19) is provided with a second motor (28) for driving the second screw rod (26) to rotate.

9. A motor loading test device as claimed in claim 5, characterized in that: Two first mounting rings (29) are provided on both the front and rear sides of the rectangular frame (18), and the two first mounting rings (29) are opposite to each other on the left and right. The four first mounting rings (29) are all mounted on the bottom plate (1) by bolts, and the rectangular frame (18) is horizontal at this time.

10. A motor loading test device as claimed in claim 5, characterized in that: Two second mounting rings (30) are provided on both the front and rear sides of the rectangular frame (18), and the two second mounting rings (30) are opposed to each other up and down. The four second mounting rings (30) are mounted on the bottom plate (1) by bolts. At this time, the rectangular frame (18) is vertical, and the two slide seats (19) in the rectangular frame (18) are horizontally slidably connected between the upper and lower sides of the rectangular frame (18). The slide groove (24) is vertically arranged on one side of the slide seat (19), and the two side plates (25) on the slide seat (19) are opposed to each other up and down. The end of the positioning plate (5) away from the support seat (3) passes through the mounting hole (4) of the motor (2) to be tested. The circular groove (7) is located on one side of the support seat (3), and the electric cylinder (8) in the circular groove (7) is horizontal. The two baffles (10) are horizontally arranged on one side of the disc (9). The rotating plate (6) is horizontally located outside the circular groove (7), and the counterweight (14) is located at the lower right side of the rotating plate (6).

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