CN114814570A - A motor testing device - Google Patents

Abstract

The invention provides motor detection equipment, which is characterized by comprising a test frame, a jacking device and a test positioning piece, wherein the test frame comprises a fixed test board and a movable test board, the top of the test positioning piece is provided with a test positioning hole which can be used for inserting and positioning a rotor gear and is mutually clamped and connected along the circumferential direction, the test positioning piece is connected to the movable test board, the bottom of the test positioning piece is provided with a connecting rod penetrating through the movable test board, and the bottom end of the connecting rod is used for connecting an encoder or a load sheet. Can upwards jack the activity test panel through the jacking device, make the test setting element on the activity test panel and motor rotor gear location fit, when the rotor gear rotates when the motor starts, rotor gear drives the connecting rod and rotates, and accessible encoder collects the test data of motor under the no load condition, also can be through the working property of load piece test motor under the load condition on the connecting rod, has satisfied the test requirement under the load condition to the motor.

Description

A motor testing device

technical field

The invention relates to the technical field of motor detection, in particular to a motor detection device.

Background technique

During the production and processing of the motor, after the motor completes the assembly of parts such as rotor, stator and carbon brush, the performance of the motor needs to be tested. At present, the detection method of the motor is usually to move the motor to be detected to the bottom of the detection device, insert the detection rod into the gear on the rotor from top to bottom, start the motor to make the rotor rotate, and drive the detection rod through the gear on the rotor. It rotates and obtains the test data of the motor to judge the working performance of the motor. However, the existing motor testing equipment cannot test the working performance of the motor when the motor rotor is subjected to load resistance, and there are certain limitations.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a motor detection device that can realize load detection.

In order to achieve the above object, the present invention provides the following technical solutions:

A motor testing equipment includes a test stand, a jacking device and a test positioning member, the test stand includes a fixed test board and a movable test board, the movable test board is located above the fixed test board, and the jacking device is installed on the Between the fixed test board and the movable test board and used to lift the movable test board, the top of the test positioning piece is provided with a test positioning hole for the rotor gear to be inserted and positioned and mutually snapped together in the circumferential direction. The test positioning piece It is connected to the movable test board and is provided with a connecting rod passing through the movable test board at the bottom, and the bottom end of the connecting rod is used for connecting an encoder or a load piece.

Further arrangement: the test positioning member includes a test fixed block and a test floating block, the test fixed block is provided with a movable hole, and the test floating block can be mounted in the movable hole in a floating manner.

Further setting: the outline of the outer peripheral wall of the test slider is in a polygonal structure, the inner wall of the movable hole is arranged in a polygonal structure corresponding to the outline of the outer peripheral wall of the test slider, and the outer peripheral wall of the test slider and the inner wall of the movable hole are arranged in a polygonal structure. Match and snap together along the circumferential direction.

Further arrangement: a movable block is provided at one end of the test slider close to the connecting rod, the movable block is arranged at the test positioning hole, and an elastic member is connected between the movable block and the connecting rod.

Further settings: the outer periphery of the test slider close to one end of the connecting rod protrudes to form a limit flange, the inner wall of the movable hole away from the one end of the connecting rod forms a limit rib, the limit flange and the limit rib snap fit.

Further setting: the motor testing equipment also includes a calibration device, the calibration device includes a calibration gear set, a linear drive device and a gear drive device, the test positioning member is provided with meshing teeth along its circumferential direction, and the gear drive device is used. For driving the correcting gear set to rotate, the linear driving device is used to drive the correcting gear set to move close to the test positioning member and engage with the meshing teeth.

Further setting: the calibration device includes a calibration slide, the calibration slide is slidably connected to the movable test board along the horizontal direction, and the linear drive device is mounted on the movable test board and used to drive the calibration slide to slide .

Further setting: the calibration gear set includes three interlocking gears that mesh in sequence, the three interlocking gears can be rotatably connected to the calibration slide, and the gear drive device is mounted on the calibration slide and is connected to a distance away from the calibration slide. Test the linkage gear connection of the positioning piece.

Further arrangement: a positioning column is provided on the top surface of the movable test board, and the positioning column is used to pass through the positioning and installation holes on the jig carrying the motor.

Further setting: a limit stop is arranged on the top surface of the movable test board, the limit stop is higher than the test positioning piece, and lower than the positioning column, and the limit stop is used for connecting with the jig. The bottom surface abuts and provides a stop.

Compared with the prior art, the scheme of the present invention has the following advantages:

In the motor testing equipment involved in the present invention, the movable test plate can be lifted up by the lifting device, so that the test positioning piece on the movable test plate is positioned and matched with the rotor gear of the motor. When the rotor gear rotates when the motor is started, the rotor gear drives When the connecting rod rotates, the test data of the motor under no load can be collected through the encoder, and the working performance of the motor under load can also be tested by placing a load piece on the connecting rod. The test structure is simple and meets the requirements of the motor under load. test requirements below.

Additional aspects and advantages of the present invention will be set forth in part in the following description, which will be apparent from the following description, or may be learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural diagram of a motor detection device in an embodiment of the present invention;

2 is a schematic structural diagram of a test stand in an embodiment of the present invention;

3 is a cross-sectional view of a motor detection device in an embodiment of the present invention;

4 is a cross-sectional view of a motor detection device in another embodiment of the present invention;

FIG. 5 is an enlarged schematic view of A in FIG. 3 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

As shown in FIG. 1 to FIG. 5 , the present invention provides a motor testing equipment, including a test frame 1 , a jacking device 2 and a test positioning member 3 , the test frame 1 includes a fixed test board 11 and a movable test board 12 , The movable test board 12 is located above the fixed test board 11 , the lifting device 2 is installed between the fixed test board 11 and the movable test board 12 and used to lift the movable test board 12 , and the top of the test positioning member 3 There is a test positioning hole 31 on the upper part for the rotor gear to be inserted and positioned and mutually snapped together in the circumferential direction. The test positioning member 3 is connected to the movable test plate 12 and the bottom is provided with a connecting rod passing through the movable test plate 12 4. The bottom end of the connecting rod 4 is used to connect the encoder 5 or the load plate 6 .

The movable test board 12 can be lifted up by the lifting device 2, so that the test positioning member 3 on the movable test board 12 is positioned and matched with the rotor gear of the motor. When the rotor gear rotates when the motor is started, the rotor gear drives the connecting rod 4 to rotate. The test data of the motor under no load can be collected through the encoder 5, and the working performance of the motor under load can also be tested by the load plate 6 on the connecting rod 4. The test structure is simple and meets the requirements of the motor under load. test requirements.

In this embodiment, the encoder 5 and the load plate 6 can be connected with the connecting rod 4 according to actual needs, and can be connected and fixed by bolt fasteners. When the encoder 5 is connected to the connecting rod 4 and the load piece 6 is attached to the connecting rod 4, the test positioning member 3 is affected by the gravity of the load sheet 6, resulting in an increase in the resistance during the rotation of the test positioning member 3, which is different from the test positioning member. 3. The rotating resistance of the matched motor rotor gear increases, so that the working performance of the motor can be tested under the condition of resistance, that is, under the load condition.

In this embodiment, the motor detection device further includes a pressing device 7, which can move in three directions and is used to press down and fix the motor on the fixture to prevent the motor from shaking and disturbing during the test. move.

Further, the test positioning member 3 includes a test fixed block 32 and a test floating block 33 , a movable hole 321 is formed on the test fixed block 32 , and the test floating block 33 can be floatingly installed in the movable hole 321 . Preferably, the outline of the outer peripheral wall of the test slider 33 is in a polygonal structure, and the inner wall of the movable hole 321 is arranged in a polygonal structure corresponding to the outline of the outer peripheral wall of the test slider 33 . It is matched with the inner wall of the movable hole 321 and clamped to each other along the circumferential direction.

By arranging a floating test slider 33 on the test fixing block 32, during the process of the test positioning member 3 being matched with the rotor gear of the motor, a collision occurs when the test positioning hole 31 on the test positioning member 3 cannot be matched with the rotor gear. At the time, the test slider 33 can move downward to avoid strong collision and extrusion with the rotor gear of the motor, resulting in damage to the test positioning member 3 and the rotor gear of the motor.

In this embodiment, the test slider 33 is in the shape of a polygonal prism as a whole. Such a structure can make the test slider 33 and the test fixed block 32 clamp and fixed in the circumferential direction. The test slider 33 can only be relative to the test fixed block 32 along the edge. The vertical movement provides a buffering effect when colliding with the rotor gear. The test slider 33 cannot rotate relative to the test fixed block 32. Therefore, when the test positioning member 3 is matched with the rotor gear, the rotor gear rotates to drive the test slider 33 to rotate. The test floating block 33 synchronously drives the test fixed block 32 to rotate, and the test fixed block 32 is connected with the connecting rod 4 and drives the connecting rod 4 to rotate, so that the working performance of the motor can be tested.

Further, an end of the test slider 33 close to the connecting rod 4 is provided with a movable block 34 , the movable block 34 is arranged at the test positioning hole 31 , and the movable block 34 is connected with the connecting rod 4 . There is an elastic member 35, and the elastic member 35 is a spring. Preferably, a movable slot 41 is formed on the top surface of the connecting rod 4 for the elastic member 35 and the movable block 34 to be embedded and move vertically. In this embodiment, an installation groove 331 is formed in the middle of the bottom surface of the test slider 33 , and the movable block 34 is embedded in the installation groove 331 .

Through this arrangement, the movable block 34 is connected with the test slider 33, and the bottom of the movable block 34 is connected with a spring, so that the test slider 33 has a floating function. In addition, the movable block 34 can also provide a stop and limit function for the rotor gear. The concave-convex matching structure is adopted between the movable block 34 and the test floating block 33, which improves the connection reliability of the two and makes it difficult for the two to separate.

In this embodiment, the inner wall of the test positioning hole 31 has a tooth-like structure for engaging with the rotor gear. When the rotor gear rotates, the test positioning member 3 rotates synchronously with the rotor gear.

Further, a limit flange 332 protrudes from the outer periphery of one end of the test slider 33 close to the connecting rod 4 , and a limit rib 3211 is formed on the inner wall of one end of the movable hole 321 away from the connecting rod 4 . The limit flange 332 It is snap-fitted with the limit rib 3211. By arranging the snap-fit structure of the limit flange 332 and the limit rib 3211 , a limit function is provided for the test slider 33 to prevent the test slider 33 from coming out of the test fixed block 32 .

In this embodiment, the movable test plate 12 is provided with a bearing 8 at the position where the connecting rod 4 passes through, and the bearing 8 is connected with the connecting rod 4 .

Further, the motor testing device also includes a calibration device 9, the calibration device 9 includes a calibration gear set 91, a linear drive device 92 and a gear drive device 93, and the test positioning member 3 is provided with meshing teeth along its circumferential direction, The gear drive device 93 is used to drive the correction gear set 91 to rotate, and the linear drive device 92 is used to drive the correction gear set 91 to move close to the test positioning member 3 and engage with the meshing teeth.

By setting the correcting device 9, the linear driving device 92 can drive the correcting gear set 91 to mesh with the test positioning member 3, and the gear driving device 93 rotates in conjunction with the correcting gear set 91, thereby driving the test positioning member 3 to rotate to an appropriate angle to meet the requirements for the insertion of the rotor gear. To meet the requirements in the test positioning hole 31, the automatic control method is adopted, and there is no need to manually adjust the test positioning member 3 to cooperate with the rotor gear, which improves the degree of automation and improves the motor test efficiency.

Further, the calibration device 9 includes a calibration slide 94 , the calibration slide 94 is slidably connected to the movable test board 12 along the horizontal direction, and the linear drive device 92 is installed on the movable test board 12 and used to drive the calibration slide 94 to slide. In this embodiment, the linear driving device 92 is a driving cylinder.

In this embodiment, the correcting gear set 91 includes three interlocking gears 911 that are meshed in sequence, and the three interlocking gears 911 are all rotatably connected to the correcting slide 94 , and the gear driving device 93 is installed On the calibration slide 94 and connected with the linkage gear 911 away from the test positioning member 3 , the gear driving device 93 is a driving motor. Preferably, the three linkage gears 911 are arranged in a straight line. In other embodiments, one, two, or three or more interlocking gears 911 may also be provided.

By arranging three linkage gears 911 that are distributed in a straight line, and the drive motor is connected to the linkage gear 911 away from the test positioner 3, when the drive motor starts, the farthest linkage gear 911 starts to rotate and links the other two linkage gears 911 Rotation, through the transmission of multiple gears, improves the stability of the linkage gear 911 when it rotates, and is not easy to shake. It can cooperate with the rotor gear at one time to improve the test efficiency.

Further, a positioning column 121 is provided on the top surface of the movable test board 12 , and the positioning column 121 is used to pass through the positioning and installation holes on the jig carrying the motor. By arranging the positioning post 121, the positioning post 121 can cooperate with the positioning mounting hole on the jig, so as to ensure that the rotor gear is located directly above the test positioning member 3, and prevent the rotor gear from being damaged due to collision due to wrong positioning.

Further, a limit stop 122 is provided on the top surface of the movable test board 12 , and the limit stop 122 is higher than the test positioning member 3 and lower than the positioning column 121 . 122 is used to abut with the bottom surface of the jig and provide a stop.

By setting the limit stopper 122, the limit stopper 122 can be in contact with the bottom surface of the jig, thereby protecting the test positioning member 3 and the correction gear set 91 from collision damage and ensuring the safety of the motor testing process.

Further, four connecting posts 123 are provided below the movable test board 12 , and four guide seats 111 are provided on the fixed test board 11 , the connecting posts 123 pass through the guide seats 111 , and the guide seats 111 are connected The column 123 provides a guide for lifting and lowering, which improves the stability of the movable test plate 12 during the lifting movement.

To sum up, the solution of the present invention has the following advantages:

In the motor testing equipment involved in the present invention, the movable test board 12 can be lifted up by the lifting device 2, so that the test positioning member 3 on the movable test board 12 can be positioned and matched with the rotor gear of the motor. When the motor starts, the rotor gear rotates. , the rotor gear drives the connecting rod 4 to rotate, the test data of the motor under no load can be collected through the encoder 5, and the working performance of the motor under load can also be tested by the load plate 6 on the connecting rod 4, and the test structure is simple , which meets the test requirements for the motor under load.

The above are only some embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A motor detection device is characterized in that: including test jig, jacking device and test setting element, the test jig is including fixed test board and activity test board, the activity test board is located fixed test board's top, the jacking device is installed and is used for the jacking activity test board between fixed test board and the activity test board, set up on the top of test setting element and supply the rotor gear to insert the test locating hole of location and along the mutual joint of circumference, test setting element connects on the activity test board and the bottom is equipped with and passes activity test board's connecting rod, the bottom of connecting rod is used for connecting encoder or load piece.

2. The motor testing apparatus of claim 1, wherein: the test positioning piece comprises a test fixing block and a test floating block, wherein a movable hole is formed in the test fixing block, and the test floating block can be installed in the movable hole in a floating mode.

3. The motor testing apparatus of claim 2, wherein: the profile of the periphery wall of test slider is polygonized structure, the inner wall of activity hole corresponds the periphery wall profile of test slider is polygonized structure setting, the periphery wall of test slider matches with the activity hole inner wall and follows the mutual joint of circumference.

4. The motor testing apparatus of claim 2, wherein: the test slider is close to the one end of connecting rod and is equipped with the movable block, the movable block set up in test locating hole department, be connected with the elastic component between movable block and the connecting rod.

5. The motor testing apparatus of claim 2, wherein: the periphery protrusion that test slider is close to connecting rod one end forms limit flange, form spacing flange on the inner wall that connecting rod one end was kept away from to the activity hole, limit flange and spacing flange joint cooperation.

6. The motor testing apparatus of claim 1, wherein: still include correcting unit, correcting unit includes correction gear train, linear drive and gear drive, the test setting element is equipped with the meshing tooth along its circumferencial direction, gear drive is used for driving the rotation of correction gear train, linear drive is used for ordering about correction gear train and removes near the test setting element and mesh with the meshing tooth.

7. The motor testing apparatus of claim 6, wherein: the correcting device comprises a correcting slide seat, the correcting slide seat is connected to the movable test plate in a sliding mode along the horizontal direction, and the linear driving device is installed on the movable test plate and used for driving the correcting slide seat to slide.

8. The motor testing apparatus of claim 7, wherein: the correcting gear set comprises three linkage gears which are meshed in sequence, the linkage gears are all rotatably connected to the correcting slide seat, and the gear driving device is installed on the correcting slide seat and connected with the linkage gears far away from the testing positioning piece.

9. The motor testing apparatus of claim 1, wherein: and the top surface of the movable test plate is provided with a positioning column, and the positioning column is used for penetrating through a positioning mounting hole on a jig bearing a motor.

10. The motor testing apparatus of claim 9, wherein: and a limit stop is arranged on the top surface of the movable test plate, is higher than the test positioning piece and is lower than the positioning column, and is used for abutting against the bottom surface of the jig and providing a blocking effect.

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