CN115308600B - Motor test platform and test method - Google Patents

Abstract

The invention relates to a motor test platform and a test method, which comprises a workbench, wherein a plurality of groups of first chutes are arranged on the workbench, two groups of first sliding blocks are symmetrically and slidably arranged in the first chutes, the two groups of first sliding blocks are respectively connected with a first bearing plate and a second bearing plate, the first bearing plate is connected with the second bearing plate through a traction assembly, the first bearing plate is connected with the workbench through a bidirectional driving assembly, the first bearing plate is symmetrically provided with two side plates, the side plates are slidably provided with the second sliding blocks, the second sliding blocks are connected with an extrusion assembly arranged on the first bearing plate through a push-pull rod, the second sliding blocks are also rotatably provided with pulleys, the pulleys are matched with a guide plate vertically arranged on the workbench, the guide plate is provided with a guide groove, the second bearing plate is movably provided with a detection device, the detection device is rotatably arranged on the detection device, and the connection head is matched with a connection seat arranged on an output shaft of a motor to be detected, so that the motor can be quickly and stably detected.

Description

Motor test platform and test method

Technical Field

The invention relates to the field of motor testing, in particular to a motor testing platform and a testing method.

Background

A linear motor can be considered as a rotating electrical machine that is cut open in a radial direction and unfolded into a straight line, a stator of the rotating electrical machine becomes a primary (also referred to as a mover) of the linear motor, and a rotor of the rotating electrical machine becomes a secondary (also referred to as a stator) of the linear motor. The rotating motor outputs torque, and the output of the linear motor is thrust. The linear motor enables reciprocating motion to be achieved without complex lead screw rotation, and meanwhile, the linear motor is high in speed, large in thrust and small in size, and becomes the first choice of a high-speed high-precision linear feeding system. At present, linear motors are increasingly used in industrial machines such as machining centers, electric discharge machines, gantry systems, and the like.

Linear electric motor need detect its operating condition before selling leaving the factory, wherein, to the key importance, whether it can reach rated revolution under rated power, current linear electric motor detection device is when using, will wait to examine the motor and pass through screw thread fixed mounting on examining test table mostly to will wait to examine the motor and take off after examining the completion, this has increased the loaded down with trivial details degree in the motor testing process undoubtedly, makes the efficiency of detection very low.

Disclosure of Invention

The invention aims to provide a motor test platform and a test method to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a motor test platform comprising:

the workstation, the workstation is provided with the spout of multiunit on along its length direction, the symmetry slides in the spout and is provided with two sets of sliders No. one, and is two sets of slider sets up with the activity respectively No. one on the workstation is accepted the board and is accepted the board No. two and is connected, just No. one accept the board with No. two are accepted and are connected through traction assembly between the board, no. one accept the board through two-way drive assembly with the workstation is connected, just No. one accept the board on the symmetry be provided with two curb plates, the curb plate has seted up perpendicular groove on its length direction, it has No. two sliders to erect inslot slidable mounting, no. two sliders pass through the push-and-pull rod and connect the setting and are in No. one accept the extrusion subassembly on the board, no. two sliders still rotate and install the pulley, the pulley with install perpendicularly deflector adaptation on the workstation, be provided with the guide slot on the deflector, no. two are accepted the activity and are provided with detection device on the board, the last rotation of detection device installs the connector, connector and set up the connecting seat on waiting to detect motor output shaft, just the forced air cooling subassembly is connected and is set up on the workstation.

As a further scheme of the invention: the traction assembly is installed including rotating intermediate lever on the workstation, the both ends of intermediate lever are rotated respectively and are installed a connecting rod and No. two connecting rods, wherein a connecting rod with the board is accepted to rotate No. one and is connected, no. two connecting rods with the board is accepted to rotate No. two and is connected.

As a still further scheme of the invention: the two-way drive assembly comprises a drive device fixedly mounted on the workbench, an output shaft of the drive device is connected and rotatably mounted with a two-way screw rod on the workbench, two threaded sleeves in threaded connection with the two-way screw rod are symmetrically arranged on the two-way screw rod, the two threaded sleeves are connected with the first connecting plate through support rods, one end of each support rod is rotatably connected with the corresponding threaded sleeve, and the other end of each support rod is rotatably connected with the corresponding first connecting plate.

As a still further scheme of the invention: the extrusion assembly comprises a second sliding groove formed in the first bearing plate, two hook plates are symmetrically arranged in the second sliding groove in a sliding mode, the hook plates are connected with the push-pull rod in a rotating mode, abutting plates parallel to the hook plates are arranged on the hook plates, and the abutting plates are connected with the hook plates through elastic pieces.

As a still further scheme of the invention: the guide groove comprises a first flat section and a second inclined section which are of two-part structures, wherein the tail end of the first flat section is connected with the head end of the second inclined section, and the tail end of the first flat section is in smooth transition with the head end of the second inclined section.

As a still further scheme of the invention: detection device through the buffering subassembly with No. two accept board elastic connection, the buffering subassembly sets up including the symmetry No. two guide bars on the board are accepted, slide on the guide bar be provided with detection device fixed connection's mounting panel, just go back fixed mounting on the guide bar has the spacing ring, it is equipped with the spring still to overlap on the guide bar, the one end of spring with the spacing ring is connected, the other end with the mounting panel is connected.

As a still further scheme of the invention: the air cooling assembly comprises a transmission rod which is rotatably installed on the workbench, a bevel gear set is arranged at one end of the transmission rod and is rotatably installed on the fan on the workbench, a follow-up sleeve is slidably sleeved on the transmission rod and is rotatably connected with a transverse plate, one end, away from the follow-up sleeve, of the transverse plate is connected with a rotating shaft of the connecting seat, and the follow-up sleeve is connected with the rotating shaft of the connecting seat through a belt.

As a still further scheme of the invention: the transmission rod is symmetrically provided with limiting blocks, and the limiting blocks are matched with grooves formed in the inner wall of the follow-up sleeve.

A method for testing a motor by using the motor test platform comprises the following steps:

the method comprises the following steps: placing a motor to be detected on a first bearing plate;

step two: the bidirectional driving assembly is controlled to work so as to drive the first bearing plate to drive the motor to be detected to move towards the detection device and drive the side plate connected with the first bearing plate to move, the second sliding block is driven to move downwards under the action of the guide groove and the pulley, and the pushing rod acts on the extrusion assembly to clamp the base of the motor to be detected;

step three: when the first bearing plate moves, the second bearing plate moves towards the first bearing plate under the action of the traction assembly, and the connecting seat is further embedded with the connecting head;

step four: electrifying a motor to be detected to enable the motor to be detected to work under rated power, detecting the rotating speed of the motor through a detection device, driving an air cooling assembly to work in the working process of the motor to be detected, and cooling the motor to be detected;

step five: and after the motor to be detected is detected, taking down the motor to be detected, and detecting the next motor.

Compared with the prior art, the invention has the beneficial effects that:

when the bidirectional bearing device is used, the first bearing plate is driven to drive the motor to be detected to move by controlling the bidirectional driving assembly, the first bearing plate and the second bearing plate are connected through the traction assembly, so that in the process of movement of the first bearing plate, the first bearing plate and the second bearing plate move close to each other, the connecting seat and the connecting head tend to be combined, the first bearing plate moves downwards under the movement of the sliding block and the guide plate, the first bearing plate and the second bearing plate act on the extrusion assembly to fix the base of the motor to be detected through the push-pull rod, the risk of overturning caused by shaking can be avoided when the motor to be detected works, the danger degree in the detection process is reduced, meanwhile, when the connecting seat is embedded with the connecting head, the motor to be detected is powered on, the motor to be detected is enabled to operate under the rated power, the rotating speed of the motor to be detected is detected through the detection device, meanwhile, under the action of the air cooling assembly, the phenomenon that the temperature is increased due to long-time operation of the motor to be detected is avoided, and the rotating speed is reduced, and the detection structure is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a motor test platform and a test method.

FIG. 2 is a schematic structural diagram of a pressing assembly in an embodiment of a motor testing platform and a testing method.

FIG. 3 is a schematic diagram of another embodiment of a motor test platform and a motor test method.

Fig. 4 is a schematic structural diagram of a servo sleeve and a transmission rod in an embodiment of a motor test platform and a test method.

FIG. 5 is a schematic structural diagram of another embodiment of a motor test platform and a motor test method.

Fig. 6 is a schematic structural diagram of a bi-directional driving assembly in an embodiment of a motor test platform and a test method.

FIG. 7 is a schematic diagram of a buffer assembly in an embodiment of a testing platform and a testing method for a motor.

In the figure: 1. a work table; 2. a first chute; 3. a first sliding block; 4. a bearing plate I; 5. a first connecting rod; 6. an intermediate lever; 7. a second connecting rod; 8. a second bearing plate; 9. a guide bar; 10. a limiting ring; 11. a spring; 12. mounting a plate; 13. a detection device; 14. a connector; 15. a connecting seat; 16. a drive device; 17. a bidirectional screw rod; 18. a threaded sleeve; 19. a support bar; 20. a side plate; 21. a second sliding block; 22. a pulley; 23. a guide plate; 24. a guide groove; 25. a push-pull rod; 26. a hook plate; 27. a second chute; 28. abutting against the plate; 29. an elastic sheet; 30. a transverse plate; 31. a follower sleeve; 32. a transmission rod; 33. a belt; 34. a bevel gear set; 35. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Referring to fig. 1~7, in an embodiment of the present invention, a motor test platform includes:

workstation 1, workstation 1 is provided with a multiunit spout 2 on along its length direction, the symmetry slides in spout 2 and is provided with two sets of sliders 3, and is two sets of slider 3 sets up with the activity respectively and is in workstation 1 is last accept board 4 and No. two accept board 8 and be connected, just accept board 4 No. one with No. two are accepted and are connected through the subassembly that draws between the board 8, draw the subassembly including rotating and install intermediate lever 6 on the workstation 1, the both ends of intermediate lever 6 are rotated respectively and are installed connecting rod 5 and No. two connecting rods 7, wherein connecting rod 5 with accept board 4 and rotate and connect, no. two connecting rods 7 with No. two are accepted board 8 and are rotated and connect

When accepting board 4 and driving and waiting to examine the detection motor and move towards detection device 13, because accept board 4 and connect intermediate lever 6 through connecting rod 5 No. one, make in-process accepting board 4 and moving one, can order about intermediate lever 6 and take place to rotate, and in intermediate lever 6 pivoted in-process, its accessible connecting rod 7 drives No. two and accepts board 8 and accept board 4 and move towards No. one, realize the mutual approaching motion of the two, accelerate and wait to examine the connection speed of detecting motor and detection device 13, simultaneously because accept board 4 and No. two and accept board 8 and slide through slider 3 and set up on workstation 1, make the two more stable at the in-process that removes, and in-process treating the detection motor and carrying out the detection, the state of waiting to examine the detection motor is more stable, ensure the security in the testing process.

Referring to fig. 5 and 6, the first receiving plate 4 is connected to the workbench 1 through a bidirectional driving assembly, the bidirectional driving assembly includes a driving device 16 fixedly mounted on the workbench 1, an output shaft of the driving device 16 is connected to a bidirectional screw rod 17 rotatably mounted on the workbench 1, two threaded sleeves 18 in threaded connection with the bidirectional screw rod 17 are symmetrically arranged on the bidirectional screw rod 17, the two threaded sleeves 18 are connected to the first receiving plate 4 through a supporting rod 19, one end of the supporting rod 19 is rotatably connected to the threaded sleeves 18, and the other end of the supporting rod 19 is rotatably connected to the first receiving plate 4.

When the detection platform is used, a motor to be detected is placed on the first bearing plate 4, the driving device 16 is controlled to work, the two-way screw rod 17 connected with an output shaft of the driving device is driven to rotate, the two threaded sleeves 18 arranged on the two-way screw rod 17 are enabled to move close to each other, the first bearing plate 4 and the motor to be detected move towards the detection device 13 through the supporting rod 19, wherein the two-way screw rod 17 is in threaded connection with the threaded sleeves 18, the threaded connection has a labor-saving effect on one hand, the output load of the driving device 16 is smaller, the driving device 16 with smaller selectable power is further produced, the production cost is reduced, the use cost is reduced to a certain extent, on the other hand, the threaded connection has self-locking performance, the threaded sleeves 18 cannot move on the two-way screw rod 17 under the condition that the driving device 16 is powered off, the stability of the detection platform is higher, and meanwhile, the precision degree of the threaded connection is higher, and the detection platform is more accurate in the process of controlling the first bearing plate 4 to move.

Referring to fig. 2, two side plates 20 are symmetrically arranged on the first bearing plate 4, a vertical groove is formed in each side plate 20 along the length direction of the side plate, a second sliding block 21 is slidably mounted in the vertical groove, the second sliding block 21 is connected with an extrusion assembly arranged on the first bearing plate 4 through a push-pull rod 25, the extrusion assembly comprises a second sliding groove 27 formed in the first bearing plate 4, two hook plates 26 are symmetrically and slidably arranged in the second sliding groove 27, the hook plates 26 are rotatably connected with the push-pull rod 25, the hook plates 26 are provided with abutting plates 28 parallel to the hook plates, and the abutting plates 28 are connected with the hook plates 26 through elastic pieces 29;

still rotate on No. two sliders 21 and install pulley 22, pulley 22 is installed with perpendicular 23 adaptation of deflector on the workstation 1, be provided with guide slot 24 on the deflector 23, guide slot 24 includes two partial structures, is first straight section and second slope section respectively, wherein, the tail end of first straight section with the head end of second slope section is connected, just the tail end of first straight section with the head end smooth transition of second slope section.

When the bearing plate 4 moves towards the detection device 13, the side plate 20 moves along with the bearing plate 4 and drives the second sliding block 21 to move, the second sliding block 21 is rotatably connected with the pulley 22, and the pulley 22 is slidably arranged in the guide groove 24 on the guide plate 23, so that along with the movement of the first bearing plate 4, the pulley 22 moves from the first straight section on the guide groove 24 to the second inclined section and drives the second sliding block 21 to move downwards, and meanwhile, in the process of downward movement of the second sliding block 21, the hook plate 26 is driven by the push-pull rod 25 to move towards the base of the motor to be detected, and the base of the motor to be detected is fixed under the action of the two bearing plates 28, wherein the bearing plates 28 are slidably connected with the hook plate 26 through the connecting rod, and the mutual acting force between the bearing plates 28 and the base of the motor to be detected is buffered through the arranged elastic sheets 29, so that the push-pull rod 25 is prevented from being bent and deformed due to overlarge acting force, or the base structure of the motor to be detected is damaged.

It should be noted that, a boss is arranged on the abutting plate 28, and when the abutting plate 28 abuts against the base of the motor to be detected, the boss can clamp the base of the motor to be detected between the first receiving plate 4 and the second receiving plate, so that the motor to be detected does upward movement in the detection process.

Referring to fig. 1 and 7, a detection device 13 is movably arranged on the second bearing plate 8, the detection device 13 is elastically connected with the second bearing plate 8 through a buffer assembly, the buffer assembly includes two guide rods 9 symmetrically arranged on the second bearing plate 8, an installation plate 12 fixedly connected with the detection device 13 is slidably arranged on the guide rods 9, and a limit ring 10 is further fixedly arranged on the guide rods 9;

still the cover is equipped with spring 11 on the guide bar 9, spring 11's one end with spacing ring 10 is connected, the other end with mounting panel 12 is connected.

When waiting to examine the motor of examining and moving towards detection device 13, connector 14 will gradually with connecting seat 15 gomphosis, and in order to guarantee the two stable connection, can not take place the separation in the testing process, make and accept board 4 and No. two and accept board 8 and be close to each other to the laminating time, spring 11 is in the state of compressed, be in elastic connection's state between connector 14 and the connecting seat 15 promptly, the loaded down with trivial details nature of connecting when avoiding rigid connection, guaranteed connector 14 and connecting seat 15's stability of being connected simultaneously.

Referring to fig. 1 and 3, a connector 14 is rotatably mounted on the detection device 13, the connector 14 is adapted to a connecting seat 15 arranged on an output shaft of a motor to be detected, the connector 14 is connected to an air cooling assembly arranged on the workbench 1, the air cooling assembly includes a transmission rod 32 rotatably mounted on the workbench 1, one end of the transmission rod 32 is provided with a bevel gear set 34, the bevel gear set 34 includes a first bevel gear coaxially and fixedly connected with the transmission rod 32, the first bevel gear is meshed with a second bevel gear rotatably mounted on the workbench 1, and the second bevel gear is connected to a fan 35 rotatably mounted on the workbench 1;

sliding sleeve is equipped with follow-up sleeve 31 on transfer line 32, follow-up sleeve 31 rotates with diaphragm 30 and is connected, diaphragm 30 keeps away from follow-up sleeve 31 one end with the pivot of connecting seat 15 is connected, just follow-up sleeve 31 with connect through belt 33 between the pivot of connecting seat 15.

After connector 14 and connecting seat 15 are stably connected, treat to detect the motor and switch on, make its work, detect its rotational speed under the rated power condition through detection device 13, at connecting seat 15 pivoted in-process simultaneously, drive fan 35 and rotate, treat to detect the motor and cool off, avoid in long-time testing process, take place owing to treat that it is stable to detect the motor and rise, and the phenomenon that leads to the rotational speed to descend influences the detection precision.

As an embodiment of the present invention, there is also provided a method for testing a motor using the motor test platform, including the steps of:

the method comprises the following steps: placing a motor to be detected on the first bearing plate 4;

step two: controlling the bidirectional driving assembly to work so as to drive the first bearing plate 4 to drive the motor to be detected to move towards the detection device 13 and drive the side plate 20 connected with the first bearing plate to move, and under the action of the guide groove 24 and the pulley 22, driving the second sliding block 21 to move downwards and act on the extrusion assembly through the push-pull rod 25 so as to clamp the base of the motor to be detected;

step three: when the first bearing plate 4 moves, the second bearing plate 8 moves towards the first bearing plate 4 under the action of the traction assembly, and the connecting seat 15 is further embedded with the connecting head 14;

step four: electrifying the motor to be detected to enable the motor to be detected to work under rated power, detecting the rotating speed of the motor through the detection device 13, driving the air cooling assembly to work in the working process of the motor to be detected, and cooling the motor to be detected;

step five: and after the motor to be detected is detected to be finished, taking down the motor to be detected, and detecting the next motor.

In conclusion, when the detection platform is used, a motor to be detected is placed on the first bearing plate 4, the driving device 16 is controlled to work, the two-way screw rod 17 connected with an output shaft of the driving device is driven to rotate, the two threaded sleeves 18 arranged on the two-way screw rod 17 move close to each other, and the first bearing plate 4 and the motor to be detected are driven to move towards the detection device 13 through the supporting rod 19;

when the first bearing plate 4 drives the motor to be detected to move towards the detection device 13, the first bearing plate 4 is connected with the middle rod 6 through the first connecting rod 5, so that the middle rod 6 can be driven to rotate in the movement process of the first bearing plate 4, and in the rotation process of the middle rod 6, the second bearing plate 8 can be driven to move towards the first bearing plate 4 through the second connecting rod 7, the mutual approaching movement of the first bearing plate and the second bearing plate is realized, the connection speed of the motor to be detected and the detection device 13 is accelerated, meanwhile, the first bearing plate 4 and the second bearing plate 8 are arranged on the workbench 1 in a sliding mode through the first sliding block 3, so that the first bearing plate and the second bearing plate are more stable in the movement process, in the detection process of the motor to be detected, the state of the motor to be detected is more stable, and the safety in the detection process is ensured;

when the first bearing plate 4 moves towards the detection device 13, the side plate 20 moves along with the first bearing plate 4 and drives the second sliding block 21 to move, the second sliding block 21 is rotatably connected with the pulley 22, and the pulley 22 is slidably arranged in the guide groove 24 on the guide plate 23, so that along with the movement of the first bearing plate 4, the pulley 22 moves from the first straight section on the guide groove 24 to the second inclined section and drives the second sliding block 21 to move downwards, and meanwhile, in the downward movement process of the second sliding block 21, the hook plate 26 is driven by the push-pull rod 25 to move towards the base of the motor to be detected, and the base of the motor to be detected is fixed under the action of the two abutting plates 28, wherein the abutting plates 28 are slidably connected with the hook plate 26 through the connecting rod, and the mutual acting force between the abutting plates 28 and the base of the motor to be detected is buffered through the arranged elastic sheet 29, so that the excessive acting force of the two abutting plates can prevent the push-pull rod 25 from bending deformation or the base structure of the motor to be detected from being damaged;

when the motor to be detected moves towards the detection device 13, the connector 14 is gradually embedded with the connecting seat 15, and in order to ensure that the connector and the connecting seat are stably connected, the connector 14 and the connecting seat 15 cannot be separated in the detection process, so that when the first bearing plate 4 and the second bearing plate 8 are close to each other and are attached to each other, the spring 11 is in a compressed state, namely the connector 14 and the connecting seat 15 are in an elastic connection state, the complexity of connection in rigid connection is avoided, and meanwhile, the connection stability of the connector 14 and the connecting seat 15 is ensured;

after connector 14 and connecting seat 15 are stably connected, treat to detect the motor and switch on, make its work, detect its rotational speed under the rated power condition through detection device 13, at connecting seat 15 pivoted in-process simultaneously, drive fan 35 and rotate, treat to detect the motor and cool off, avoid in long-time testing process, take place owing to treat that it stably rises to detect the motor, and lead to the phenomenon of rotational speed decline.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A motor test platform, comprising:

the automatic feeding device comprises a workbench (1), wherein a plurality of groups of first sliding grooves (2) are formed in the workbench (1) along the length direction of the workbench, two groups of first sliding blocks (3) are symmetrically arranged in the first sliding grooves (2) in a sliding manner, the two groups of first sliding blocks (3) are respectively connected with a first bearing plate (4) and a second bearing plate (8) which are movably arranged on the workbench (1), and the first bearing plate (4) is connected with the second bearing plate (8) through a traction assembly;

the first bearing plate (4) is connected with the workbench (1) through a bidirectional driving assembly, two side plates (20) are symmetrically arranged on the first bearing plate (4), vertical grooves are formed in the side plates (20) along the length direction of the side plates, second sliding blocks (21) are slidably mounted in the vertical grooves, the second sliding blocks (21) are connected with an extrusion assembly arranged on the first bearing plate (4) through push-pull rods (25), pulleys (22) are further rotatably mounted on the second sliding blocks (21), the pulleys (22) are matched with guide plates (23) vertically mounted on the workbench (1), and guide grooves (24) are formed in the guide plates (23);

a detection device (13) is movably arranged on the second bearing plate (8), a connector (14) is rotatably arranged on the detection device (13), the connector (14) is matched with a connecting seat (15) arranged on an output shaft of a motor to be detected, and the connector (14) is connected with an air cooling assembly arranged on the workbench (1);

the traction assembly comprises an intermediate rod (6) rotatably mounted on the workbench (1), a first connecting rod (5) and a second connecting rod (7) are rotatably mounted at two ends of the intermediate rod (6) respectively, the first connecting rod (5) is rotatably connected with the first bearing plate (4), and the second connecting rod (7) is rotatably connected with the second bearing plate (8);

the bidirectional driving assembly comprises a driving device (16) fixedly installed on the workbench (1), an output shaft of the driving device (16) is rotatably installed on a bidirectional screw rod (17) on the workbench (1), two threaded sleeves (18) in threaded connection with the bidirectional screw rod (17) are symmetrically arranged on the bidirectional screw rod (17), the two threaded sleeves (18) are connected with the bearing plate (4) through supporting rods (19), one end of each supporting rod (19) is rotatably connected with the corresponding threaded sleeve (18), and the other end of each supporting rod is rotatably connected with the corresponding bearing plate (4).

2. The motor test platform according to claim 1, wherein the extrusion assembly comprises a second sliding groove (27) formed in the first bearing plate (4), two hook plates (26) are symmetrically and slidably arranged in the second sliding groove (27), the hook plates (26) are rotatably connected with the push-pull rod (25), the hook plates (26) are provided with abutting plates (28) parallel to the hook plates, and the abutting plates (28) are connected with the hook plates (26) through elastic sheets (29).

3. The motor testing platform as claimed in claim 1, wherein the guide groove (24) comprises a two-part structure including a first straight section and a second inclined section, wherein the tail end of the first straight section is connected with the head end of the second inclined section, and the tail end of the first straight section is smoothly transited with the head end of the second inclined section.

4. The motor test platform according to claim 1, wherein the detection device (13) is elastically connected with the second bearing plate (8) through a buffer assembly, the buffer assembly comprises two guide rods (9) symmetrically arranged on the second bearing plate (8), a mounting plate (12) fixedly connected with the detection device (13) is slidably arranged on the guide rods (9), and a limit ring (10) is fixedly arranged on the guide rods (9);

still be equipped with spring (11) on guide bar (9), the one end of spring (11) with spacing ring (10) are connected, the other end with mounting panel (12) are connected.

5. The motor test platform as claimed in claim 1, wherein the air cooling assembly comprises a transmission rod (32) rotatably mounted on the workbench (1), one end of the transmission rod (32) is provided with a bevel gear set (34), and the bevel gear set (34) is connected with a fan (35) rotatably mounted on the workbench (1);

sliding sleeve is equipped with follow-up sleeve (31) on transfer line (32), follow-up sleeve (31) rotate with diaphragm (30) and are connected, diaphragm (30) are kept away from the one end of follow-up sleeve (31) with the pivot of connecting seat (15) is connected, just follow-up sleeve (31) with connect through belt (33) between the pivot of connecting seat (15).

6. The motor test platform as claimed in claim 5, wherein the transmission rod (32) is symmetrically provided with a limiting block, and the limiting block is matched with a groove arranged on the inner wall of the follow-up sleeve (31).

7. A method of testing an electric motor using the motor test platform of claim 1, comprising the steps of:

the method comprises the following steps: placing a motor to be detected on the first bearing plate (4);

step two: the bidirectional driving assembly is controlled to work so as to drive the first bearing plate (4) to drive the motor to be detected to move towards the detection device (13) and drive the side plate (20) connected with the first bearing plate to move, and drive the second sliding block (21) to move downwards under the action of the guide groove (24) and the pulley (22), and the second sliding block acts on the extrusion assembly through the push-pull rod (25) so as to clamp the base of the motor to be detected;

step three: when the first bearing plate (4) moves, the second bearing plate (8) moves towards the first bearing plate (4) under the action of the traction assembly, and the connecting seat (15) is further embedded with the connecting head (14);

step four: electrifying the motor to be detected to enable the motor to be detected to work under rated power, detecting the rotating speed of the motor by a detection device (13), driving an air cooling assembly to work in the working process of the motor to be detected, and cooling the motor to be detected;

step five: and after the motor to be detected is detected to be finished, taking down the motor to be detected, and detecting the next motor.

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