CN110082679A - A kind of electric machine experiment apparatus and its application method - Google Patents

Abstract

The invention discloses a motor experiment device, which includes a dynamometer and a motor to be tested. The motor shaft and the dynamometer shaft are connected through a fast coupling. The fast coupling includes a tightening fixed end and a return chuck fixed end. The fixed end is connected to the shaft of the dynamometer, the fixed end of the return chuck is connected to the motor shaft, and a relative motion assembly for making the dynamometer and the motor under test move relative to each other is provided between the dynamometer and the motor under test. The relative motion assembly can change the relative position of the dynamometer and the motor under test without dismantling the motor under test. By moving the dynamometer or the motor under test through the relative motion assembly, experiments on different motors under test can be realized quickly. The coupling can realize the purpose of fast switching of the motor in the experiment of different types of motors under test. The invention also provides a method for using the motor experiment device.

Description

A kind of electric motor experiment device and using method thereof

technical field

The invention belongs to the technical field of motors, and in particular relates to a motor experiment device and a using method thereof.

Background technique

At present, the common motor experiment device is a fixed connection, and the position of the dynamometer and the motor under test is fixed. If you need to test the performance parameters of different motors under test, you need to remove the motor under test or the coupling, replace the motor under test and reinstall it. , the process is more complicated.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a motor experiment device with simple structure and easy use, which can conduct speed and torque experiments on different motors, and can realize experiments on different types of motors in combination with fast couplings. The purpose of fast switching of the middle motor; the invention also provides a method for using the motor experiment device.

In order to achieve the above object, the technical solution of the present invention is: a motor experiment device, including a dynamometer and a motor under test, the motor shaft and the dynamometer shaft are connected through a quick coupling, and the dynamometer shaft is connected to the fast coupling. The shaft is fixedly connected, and a relative motion assembly for making the dynamometer and the motor under test move relative to each other is provided between the dynamometer and the motor under test.

Further, the quick coupling includes a tightening and fixing end and a return chuck fixing end, the tightening and fixing end is connected with the dynamometer shaft, and the return chuck fixing end is connected with the motor shaft.

Further, the fixed end of the return collet includes a collet, a pressure rod, a spring and a fixed block, one end of the pressure rod is connected to the collet, the other end of the pressure rod is connected to the spring, and the fixed block is provided with a spring for installing spring hole.

Further, the fixed end of the return chuck also includes a cam structure, a support block and a casing, the casing is movably socketed on the fixed block and is located outside the fixed end of the return chuck, the support block is fixedly connected to the fixed block, and the pressure The rod is hinged on the support block, one end of the cam structure is in contact with the pressure rod, and one end of the cam structure is connected with the inner wall of the casing.

Further, the relative motion assembly includes a motor support and a moving plate for carrying a dynamometer, the motor support is provided with a motor groove and a guide rail for installing the motor under test, and a guide groove is provided on the moving plate , the mobile plate is slidably connected to the motor support through the guide groove and the guide rail.

Further, the relative motion assembly includes a fixed plate for carrying the motor under test and a rotating plate for carrying a dynamometer. The rotating plate is rotatably connected to the middle of the fixed plate, and the rotating plate is connected to the fixed plate through a bearing and a rotating shaft. superior.

Further, the relative motion assembly includes a fixed plate for carrying the dynamometer, a rotating plate for carrying the motor under test and a connecting rod, the fixed plate is fixedly connected to one end of the connecting rod, and the rotating plate is rotatably connected to the connecting rod the other end of the

Further, the bottom of the fixed plate is provided with a bearing block I, the bottom of the rotating plate is provided with a bearing block II, and the two ends of the connecting rod are respectively connected with the bearing block I and the bearing block II.

Based on the above-mentioned a kind of motor experiment device, the present invention also provides a kind of use method of the motor test device, and described use method comprises the following steps:

Step 1. Install the dynamometer and the motor under test on their corresponding bearing mechanisms, move the dynamometer or the motor under test so that the dynamometer and the motor under test correspond to each other, and connect the motor through the quick coupling The shaft is connected with the shaft of the dynamometer to conduct experiments;

Step 2. When it is necessary to conduct experiments on another motor under test, operate the quick coupling to withdraw the motor shaft, move the dynamometer or the motor under test, so that the dynamometer corresponds to another motor under test, and also pass the fast A coupling connects the motor shaft to the dynamometer shaft and conducts experiments.

Further, the tightening and fixing end of the quick coupling is connected to the shaft of the dynamometer, and the fixing end of the return chuck is connected to the motor shaft. The specific operation is: when the tightening and fixing end of the quick coupling is tightened After fixing, move the casing to the side close to the dynamometer, the cam structure connected with the casing applies pressure to the pressure rod, the spring compresses, and then the chuck opens, and the quick coupling returns to the fixed end of the chuck It is in the open state, and the motor shaft is ready to enter; then move the motor shaft into the opened chuck mouth, and move the casing to the side away from the dynamometer. During this process, the pressure of the cam structure on the pressure rod is gradually reduced to zero. , the spring stretches to make the collet clamp the motor shaft through the principle of leverage, and start the experiment.

The advantage of adopting technical solution of the present invention is:

1, the present invention has designed multiple motor experimental devices that can quickly carry out experiments to a plurality of motors, i.e. longitudinally movable motor experimental device, circumferentially distributed motor experimental device and rotating motor experimental device, to meet different experimental conditions, There is no need to dismantle the motor or coupling when conducting experiments with different motors, and there is no need to reinstall the motor, making the test process simple and easy to operate.

2. The present invention also designs a fast coupling for easy connection, which can quickly loosen and clamp the motor shaft. When switching between different motor experiments, it is not necessary to disassemble the coupling, so that the motors in different types of motor experiments can be tested quickly. purpose of switching.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

Fig. 1 is a schematic diagram of the structure of the longitudinally movable motor experiment device of the present invention.

Fig. 2 is a schematic diagram of the structure of the experimental device for the distributed motor of the present invention.

Fig. 3 is a schematic diagram of the structure of the rotating electric machine experimental device of the present invention.

Fig. 4 is a schematic diagram of the bottom of the rotary motor type experimental device of the present invention.

Fig. 5 is a schematic structural diagram of the quick coupling of the present invention.

Fig. 6 is a schematic diagram of the internal structure of the quick coupling of the present invention.

The marks in the above figure are: 1. Dynamometer; 11. Dynamometer shaft; 2. Motor under test; 21. Motor shaft; 3. Quick coupling; 31. Tighten the fixed end; 32. Return clip Head fixed end; 33, collet; 34, pressure rod; 35, spring; 351, spring bushing; 36, fixed block; 37, cam structure; 38, support block; 39, casing; 4, relative motion assembly ;41, motor support; 411, motor groove; 412, guide rail; 42, moving plate; 421, guide groove; 43, fixed plate; 44, rotating plate; 45, fixed plate; plate; 461, bearing block II; 47, connecting rod.

Detailed ways

In the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" ", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Plane Direction", "Circumferential" and other indications are based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations on the Invention.

As shown in Figures 1 to 6, a motor experimental device includes a dynamometer 1 and a motor under test 2, the motor shaft 21 is connected to the dynamometer shaft 11 through a fast coupling 3, and the dynamometer shaft 11 is connected to the fast The shaft coupling 3 is fixedly connected, and a relative motion assembly 4 for making the dynamometer 1 and the motor under test 2 move relative to each other is provided between the dynamometer 1 and the motor under test 2 . The relative motion assembly 4 can change the relative position of the dynamometer 1 and the motor under test 2 without removing the motor under test. By moving the dynamometer 1 or the motor under test 2 through the relative motion assembly 4, different The test motor 2 is used for the experiment, and the fast coupling 3 can realize the purpose of fast switching of the motor in the experiment of different types of the tested motor.

The quick coupling 3 includes a tightening fixed end 31 and a return chuck fixed end 32 , the tightening fixed end 31 is connected with the dynamometer shaft 11 , and the return chuck fixed end 32 is connected with the motor shaft 21 . Return chuck fixed end 32 comprises chuck 33, pressure bar 34, spring 35 and fixed block 36, and one end of pressure bar 34 is connected with chuck 33, and the other end of pressure bar 34 is connected with spring 35, and fixed block 36 is provided with There is a spring hole for installing the spring 35, and the two ends of the spring 35 pass through the spring hole and are respectively connected with the pressure rod 34. In order to increase the stability of the connection between the pressure rod 34 and the spring 35, a spring bushing 351 is provided between the pressure rod 34 and the spring 35, one end of the spring bushing 351 is connected with the pressure rod 34, and the other end of the spring bushing 351 is sleeved on the The end of spring 35, and cooperate with spring hole can move up and down in spring hole, plays the effect of guiding and reinforcing stability.

The fixed end 32 of the return chuck also includes a cam structure 37, a support block 38 and an enclosure 39. The enclosure 39 is movably socketed on the fixed block 36 and is located outside the fixed end 32 of the return chuck. The support block 38 is fixedly connected to the fixed end 32. On the block 36, the pressure rod 34 is hinged on the support block 38, and one end of the cam structure 37 contacts the pressure rod 34, and one end of the cam structure 37 is connected with the inner wall of the casing 39. The back and forth movement of the casing 39 drives the movement of the cam structure 37 to realize the contraction of the spring, and then realize the clamping and loosening of the collet 33 .

The working principle of the quick coupling 3 is: the tightening fixed end 31 of the quick coupling 3 is connected with the shaft 11 of the dynamometer, and the fixed end 32 of the return chuck is connected with the motor shaft 21. The specific operation is: when the quick coupling 3 After the screwed fixed end 31 of 3 is tightened and fixed with the dynamometer shaft 11, the enclosure 39 is moved to the side close to the dynamometer 1, and the cam structure 37 connected with the enclosure 39 exerts pressure on the pressure rod 34, and the spring 35 compresses , and then the collet 33 is opened, the return collet fixed end 32 of the quick coupling is opened, and the motor shaft is ready to enter; then the motor shaft is moved into the opened collet mouth, and the enclosure 39 is moved away from the measuring One side of the power machine 1 moves, during which the pressure of the cam structure 37 on the pressure bar gradually decreases to zero, and the spring 35 stretches to make the collet 33 clamp the motor shaft 21 by the principle of leverage, and the experiment begins.

The inner diameter of the enclosure 39 is greater than the outer diameter of the tightened fixed end 31, and the enclosure 39 slides along the tightened fixed end 31. According to the position of the enclosure 39 relative to the tightened fixed end 31 when the chuck 33 is opened and clamped, the enclosure 39 Two grooves are arranged on the inner wall of the inner wall, and two protrusions are arranged on the outer wall of the tightening fixed end 31, and the grooves cooperate with the protrusions to realize the fixing of the position of the enclosure 39.

According to the arrangement of the dynamometer 1 and the motor under test 2, preferably, the motor experimental device of the present invention includes a longitudinally movable motor experimental device, a circumferentially distributed motor experimental device and a rotating motor experimental device.

For the longitudinal mobile motor experimental device, the relative motion assembly 4 includes a motor support 41 and a moving plate 42 for carrying the dynamometer 1, and the motor support 41 is provided with a motor slot 411 and a guide rail for installing the motor 2 under test 412 , the moving plate 42 is provided with a guide groove 421 , and the moving plate 42 is slidably connected to the motor support 41 through the guide groove 421 and the guide rail 412 . In order to ensure the firmness of the cooperation between the guide rail 412 and the guide groove 421, the guide groove 421 is a dovetail groove, and the guide rail 412 is a dovetail guide rail matched with the dovetail groove; the motor under test 2 is fixedly installed on the motor support 41, corresponding to the motor under test 2 The position of the moving plate 42 is provided with a through hole on the guide groove 421 and the guide rail 412, and the positioning of the dynamometer 1 on the motor support 41 can be realized by passing the pin shaft through the through hole on the guide groove 421 and the guide rail 412. Then make the dynamometer 1 correspond to the motor 2 under test, and the moving plate 42 slides along the motor support 41, so that the position of the dynamometer 1 can be adjusted so that it corresponds to different motors 2 under test, and different motors 2 under test are tested. .

The working principle of the vertically movable motor experiment device is as follows: fix the dynamometer 1 on the moving plate 42, first connect the dynamometer 1 to the quick coupling 3, and then move the moving plate 42 through the guide rail 412 and the guide groove 421 Go to the station of one of the tested motors 2 for testing. After the test is completed, the motor shaft is withdrawn, and then moved along the guide rail 412 to another position of the tested motor 2 to repeat the above-mentioned operation for testing.

For the circumferentially distributed motor experimental device, the relative motion assembly 4 includes a fixed disk 43 for carrying the motor under test 2 and a rotating disk 44 for carrying the dynamometer 1. The rotating disk 44 is rotatably connected to the middle of the fixed disk 43. Disk 44 is connected on the fixed disk 43 by bearing and rotating shaft, and bearing is installed on the fixed disk 43, and one end of rotating shaft is connected with bearing, and the other end of rotating shaft is connected with rotating disk 44. The motor under test 2 is arranged on the fixed disk 43 along the circumferential direction, and the dynamometer 1 is fixedly connected on the rotating disk 44 and rotates with the rotating disk 44, so as to realize experiments on different motors under test 2 on the fixed disk 43, and each The motor under test 2 is provided with a positioning hole, and a connecting plate is provided at the connection between the dynamometer 1 and the motor under test 2 on the rotating disk 44, and a through hole is provided on the connecting plate. When the motor 2 corresponds, the through hole just coincides with the positioning hole, and the pin shaft passes through the through hole and the positioning hole to realize the relative position fixing of the dynamometer 1 and the motor 2 under test.

The working principle of the circumferentially distributed motor experiment device is as follows: first, after connecting the dynamometer 1 with the quick coupling 3, fix it on the middle rotating disk 44; then correct the angle of the dynamometer 1 through the rotating disk 44 so that it can be connected with the The tested motors 2 arranged on the fixed disk 43 work together, and the dynamometer 1 can conduct experiments on different tested motors 2 by rotating the rotating disk 44 .

For the rotating motor type experimental device, the relative motion assembly 4 includes a fixed plate 45 for carrying the dynamometer 1, a rotating plate 46 for carrying the motor under test 2, and a connecting rod 47. The fixed plate 45 is fixedly connected to the connecting rod 47. One end of the rotating plate 46 is rotatably connected to the other end of the connecting rod 47. The bottom of the fixed plate 45 is provided with a bearing block I 451 , the bottom of the rotating plate 46 is provided with a bearing block II 461 , and the two ends of the connecting rod 47 are respectively connected with the bearing block I 451 and the bearing block II 461 . At the connection between the dynamometer 1 and the motor under test 2, the rotating plate 46 and the connecting rod 47 are provided with positioning holes. The positioning hole on the rod 47 realizes fixing the relative position of the dynamometer 1 and the motor 2 under test, and the dynamometer 1 is connected with the motor 2 under test. For the convenience of dismounting, the motor 2 under test can be adsorbed on the rotating plate 46 through an electromagnet.

The working principle of the rotating motor type experimental device is as follows: firstly fix the dynamometer 1 to the fixed plate 45, then connect the dynamometer 1 to the quick coupling 2, and adjust the position of the motor under test by rotating the rotating plate 46 to make it It can work with the fast coupling; when the first motor to be tested is tested, the second motor to be tested is switched by rotating the motor rotating plate 46 for experimentation.

Based on the above-mentioned motor experiment device, the present invention also relates to a method for using the motor experiment device, comprising the steps of:

Step 1. Install the dynamometer 1 and the motor under test 2 on their corresponding bearing mechanisms respectively, move the dynamometer 1 or the motor under test 2 so that the dynamometer 1 and the motor under test 2 correspond to each other, and pass The quick coupling 3 connects the motor shaft 21 with the dynamometer shaft 11 for experimentation;

Step 2. When it is necessary to test another motor under test 2, operate the quick coupling 3 to withdraw the motor shaft 21, move the dynamometer 1 or the motor under test 2, and make the dynamometer 1 and another motor under test 2, the motor shaft 21 is also connected to the dynamometer shaft 11 through the quick coupling 3 and the experiment is carried out.

Among them, the working principle of the quick coupling 3: the tightening fixed end 31 of the quick coupling 3 is connected with the shaft 11 of the dynamometer, and the fixed end 32 of the return chuck is connected with the motor shaft 21. The specific operation is: when the quick coupling After the screwed fixed end 31 of 3 is tightened and fixed with the dynamometer shaft 11, the enclosure 39 is moved to the side close to the dynamometer 1, and the cam structure 37 connected with the enclosure 39 exerts pressure on the pressure rod 34, and the spring 35 compresses , and then the collet 33 is opened, the return collet fixed end 32 of the quick coupling is opened, and the motor shaft is ready to enter; then the motor shaft is moved into the opened collet mouth, and the enclosure 39 is moved away from the measuring One side of the power machine 1 moves, during which the pressure of the cam structure 37 on the pressure bar gradually decreases to zero, and the spring 35 stretches to make the collet 33 clamp the motor shaft 21 by the principle of leverage, and the experiment begins.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned method, as long as various insubstantial improvements are adopted in the technical scheme of the present invention, or the present invention is converted without improvement. Ideas and technical solutions that are directly applied to other occasions are within the protection scope of the present invention.

Claims (10)

1. A kind of motor experiment device, it is characterized in that: comprise dynamometer (1) and tested motor (2), described motor shaft (21) and dynamometer shaft (11) pass through fast coupling (3) connection, the dynamometer shaft (11) is fixedly connected with the quick coupling (3), and there is a device between the dynamometer (1) and the motor under test (2) to make the dynamometer (1) and the motor under test ( 2) The relative motion assembly (4) of relative motion. 2. A kind of motor experiment device as claimed in claim 1, characterized in that: the quick coupling (3) includes a tightening fixed end (31) and a return chuck fixed end (32), and the tightening The fixed end (31) is connected with the dynamometer shaft (11), and the fixed end (32) of the return chuck is connected with the motor shaft (21). 3. A kind of motor experiment device as claimed in claim 2, characterized in that: the fixed end (32) of the return collet comprises a collet (33), a pressure rod (34), a spring (35) and a fixed block (36), one end of pressure bar (34) is connected with collet (33), and the other end of pressure bar (34) is connected with spring (35), and the fixed block (36) is provided with the spring for installing spring (35) hole. 4. A kind of motor experiment device as claimed in claim 3, is characterized in that: described return collet fixed end (32) also comprises cam structure (37), support block (38) and casing (39), The shell (39) is movably socketed on the fixed block (36) and is located outside the fixed end (32) of the return chuck, the support block (38) is fixedly connected on the fixed block (36), and the pressure rod (34) is hinged on the On the support block (38), one end of the cam structure (37) is in contact with the pressure rod (34), and one end of the cam structure (37) is connected with the inner wall of the casing (39). 5. A kind of motor experiment device according to any one of claims 2 to 4, characterized in that: the relative motion assembly (4) includes a motor support (41) and a dynamometer (1) for carrying The moving plate (42), the motor support (41) is provided with a motor slot (411) and a guide rail (412) for installing the tested motor (2), and the moving plate (42) is provided with a guide groove (421 ), the mobile plate (42) is slidably connected to the motor support (41) through the guide groove (421) and the guide rail (412). 6. A kind of motor experiment device according to any one of claims 2 to 4, characterized in that: the relative motion assembly (4) comprises a fixed plate (43) for carrying the motor under test (2) and The rotating disc (44) for carrying the dynamometer (1), the rotating disc (44) is rotatably connected to the middle part of the fixed disc (43), and the rotating disc (44) is connected on the fixed disc (43) through a bearing and a rotating shaft. 7. A kind of electric machine experiment device according to any one of claims 2 to 4, characterized in that: the relative motion assembly (4) comprises a fixed plate (45) for carrying the dynamometer (1), The rotating plate (46) and connecting rod (47) used to carry the motor under test (2), the fixed plate (45) is fixedly connected to one end of the connecting rod (47), and the rotating plate (46) is rotatably connected to the connecting rod (47 ) at the other end. 8. A kind of motor experiment device as claimed in claim 7, characterized in that: the bottom of the fixed plate (45) is provided with a bearing block I (451), and the bottom of the rotating plate (46) is provided with a bearing block II ( 461), the two ends of the connecting rod (47) are respectively connected with the bearing block I (451) and the bearing block II (461). 9. A method for using a kind of motor experiment device according to any one of claims 1 to 8, characterized in that: the method for using comprises the steps of: Step 1. Install the dynamometer (1) and the motor under test (2) on their corresponding bearing mechanisms respectively, and move the dynamometer (1) or the motor under test (2) to make the dynamometer (1) and the motor under test (2) The motor under test (2) corresponds to the two, and the motor shaft (21) is connected with the dynamometer shaft (11) by a quick coupling (3) to carry out the experiment; Step 2. When it is necessary to conduct an experiment on another motor under test (2), operate the quick coupling (3) to withdraw the motor shaft (21), move the dynamometer (1) or the motor under test (2), so that The dynamometer (1) corresponds to another motor under test (2), and the motor shaft (21) is also connected with the dynamometer shaft (11) through a quick coupling (3) and the experiment is carried out. 10. The method of using a kind of motor experiment device as claimed in claim 9, characterized in that: the tightening fixed end (31) of the quick coupling (3) is connected with the dynamometer shaft (11), and returns The chuck fixed end (32) is connected with the motor shaft (21), and the specific operation is as follows: after the tightened fixed end (31) of the quick coupling (3) and the dynamometer shaft (11) are tightened and fixed, the enclosure ( 39) Move to the side close to the dynamometer (1), the cam structure (37) connected with the casing (39) applies pressure to the pressure rod (34), the spring (35) compresses, and then the collet (33) Open, the return chuck fixed end (32) of the quick coupling is open, and the motor shaft is ready to enter; then move the motor shaft into the opened chuck mouth, and move the enclosure (39) away from the dynamometer One side of (1) moves, and during this process, the pressure of the cam structure (37) on the pressure rod is gradually reduced to zero, and the spring (35) is elongated to make the collet (33) clamp the motor shaft (21) by the principle of leverage, Start experimenting.