A motor vibration testing device

Abstract

The utility model provides a kind of motor vibration testing device.The motor vibration testing device includes: support seat, the top of the support seat is provided with detection structure and adjusting structure, the adjusting structure includes support piece, the support piece is located the upside of support seat and the bottom surface of support piece is fixedly connected with threaded sleeve, the top of the support seat is provided with recess, self-locking screw is rotatably connected between the left and right two side inner walls of the recess, the threaded sleeve is connected with self-locking screw, one end of the self-locking screw is equipped with transmission structure, one end of the support piece is fixedly connected with fixed frame, the top of the fixed frame is fixedly connected with servo motor, the utility model provides a kind of motor vibration testing device has the advantage that user is conveniently adjusted to the structure of fixed motor, so that the output shaft of the motor to be tested can be successfully connected to the connecting shaft of torque sensor.

Description

Technical Field

[0001] This utility model relates to the field of motor vibration testing, and in particular to a motor vibration testing device. Background Technology

[0002] Vibration testing of electric motors is a technical method that assesses the health status of a motor, diagnoses potential faults, and verifies whether its performance meets standards by detecting and analyzing the vibration signals generated during motor operation. It is a crucial step in motor factory inspection, on-site maintenance, and fault diagnosis.

[0003] Currently, when conducting vibration tests on motors before they leave the factory, the motor is typically fixed in place first. Then, a coupling is used to connect the motor's output end to one side of the torque sensor's mechanical connection end, while the other connection end of the torque sensor is connected to the electromagnetic brake via the coupling. Users can then fix a magnetically adsorbed vibration sensor to a test point on the motor housing and start the motor for no-load and load tests to monitor its stability under different conditions. During this process, due to the different sizes of motors, the height of the output shaft varies, and the length of the output shaft also sometimes differs. Traditional motor fixing structures are not convenient for users to adjust flexibly and quickly according to the motor size, and the operation is usually quite cumbersome.

[0004] Therefore, it is necessary to provide a new motor vibration testing device to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a motor vibration testing device that allows users to flexibly and quickly adjust the structure of a fixed motor, so that the output shaft of the motor under test can be smoothly connected to the connecting shaft of the torque sensor.

[0006] To solve the above-mentioned technical problems, the present invention provides a motor vibration testing device comprising: a support base, wherein a detection structure and an adjustment structure are provided on the top of the support base, the adjustment structure includes a support member, the support member is located on the upper side of the support base and a threaded sleeve is fixedly connected to the bottom surface of the support member, a groove is provided on the top of the support base, a self-locking screw is rotatably connected between the inner walls of the left and right sides of the groove, the threaded sleeve and the self-locking screw are threadedly connected, and a transmission structure is installed at one end of the self-locking screw;

[0007] One end of the support member is fixedly connected to a fixed frame, and the top of the fixed frame is fixedly connected to a servo motor. The output end of the servo motor passes through the top of the fixed frame and is fixedly connected to a lead screw. The bottom of the lead screw is rotatably connected to the top of the support member. A movable part is threaded onto the surface of the lead screw, and a fixed seat is fixedly connected to the end of the movable part. The surface of the fixed seat has an installation groove, and a pressure member is located on the upper side of the fixed seat. The surface of the pressure member has symmetrical through holes, and an adjusting screw is inserted into the through holes. The bottom end of the adjusting screw is fixedly connected to the top of the fixed seat. Guide sleeves are fixedly connected to the front and rear side walls of the fixed seat, and guide rods are inserted into the guide sleeves. The bottom of the guide rods is fixedly connected to the top of the support.

[0008] As a further embodiment of this utility model, the outer surface of the guide sleeve is provided with a threaded hole, and a set screw is threadedly connected inside the threaded hole. The end of the set screw facing the fixed seat abuts against the outer peripheral surface of the guide rod. A washer is sleeved on the adjusting screw located on the upper side of the pressure member, and a locking nut is threadedly connected to the surface of the adjusting screw located on the upper side of the washer.

[0009] The above technical solution addresses the issue that different types of motors under test have varying dimensions, resulting in differences in the height and length of their output shafts. To ensure smooth connection of the output shaft to the connecting shaft of a torque sensor, the device employs an adjustment mechanism to adjust the position of the motor under test. During operation, the motor under test is first placed in the mounting slot. Then, a pressure piece is inserted into the adjusting screw, a shim is fitted, and the locking bolt is tightened. The pressure piece and the mounting slot work together to fix the motor under test. The motor under test must have a circular outer shell and sufficient magnetism to secure the magnetically adsorbed vibration sensor. The user then rotates the crank handle. The self-locking screw is rotated, which in turn pushes the support component to move horizontally towards the torque sensor until it reaches the appropriate position. Since the crank handle transmits kinetic energy to the self-locking screw through the cooperation of the large and small gears, the operation is faster and more efficient. Then, the servo motor is started to drive the lead screw to rotate, and the height of the fixed seat is adjusted using the movable part until the output shaft of the motor under test is at the appropriate height. At this time, the two set screws are tightened, and the zero-speed torque holding function of the servo motor is used to fix the fixed seat at the current height. This structure allows users to easily and quickly adjust the length and height of the output shaft of the motor under test, and the design is reasonable.

[0010] As a further embodiment of this utility model, sliders are fixedly connected to the bottom surfaces of the support members located on the front and rear sides of the threaded sleeve, and grooves are opened on the surfaces of the support seats located on the front and rear sides of the groove. The two sliders distributed in the front and rear are slidably connected to the grooves on the adjacent side respectively.

[0011] The above technical solution, by setting sliders, enables the support to remain stable during the horizontal sliding process through the cooperation of the self-locking screw and the threaded sleeve.

[0012] As a further embodiment of this utility model, the transmission structure includes a small gear, one end of the self-locking screw passes through the side wall of the groove and is fixedly connected to the small gear, a large gear meshes with one side of the small gear, the large gear is rotatably connected to the support base, and a crank is fixedly connected to the surface of the large gear.

[0013] The above technical solution achieves speed-up transmission through the cooperation of large and small gears, thereby improving the user's operating efficiency.

[0014] As a further embodiment of this utility model, the detection structure includes a torque sensor, which is located on one side of the fixed base and its bottom is fixedly connected to the top surface of the support base via a connecting bracket. An electromagnetic brake is fixedly connected to the edge of the top surface of the support base on the side away from the pinion. A motor to be tested is arranged inside the mounting groove, and the top of the motor to be tested abuts against the bottom of the pressure piece. The output end of the motor to be tested is connected to one side of the torque sensor's connecting shaft via a coupling to achieve torque transmission. The other end of the torque sensor is connected to the connecting end of the electromagnetic brake via a coupling to achieve torque transmission. A vibration sensor is magnetically connected to the housing of the motor to be tested.

[0015] With the above technical solution, when testing the motor under test, by combining an electromagnetic brake, a torque sensor, and a vibration sensor, the motor under test can be subjected to load testing, thereby monitoring whether it has good stability under different conditions.

[0016] As a further embodiment of this utility model, a control module and a data acquisition module are fixedly connected to one edge of the top surface of the support base, respectively. The vibration sensor and the torque sensor are both electrically connected to the data acquisition module, and the data acquisition module, the electromagnetic brake, and the servo motor are all electrically connected to the control module.

[0017] Through the above technical solutions, the servo motor can be used with a lead screw and moving parts to adjust the overall height of the fixed base, while the electromagnetic brake can be used with a torque sensor and coupling to provide an appropriate load for the motor under test.

[0018] Compared with related technologies, the motor vibration testing device provided by this utility model has the following advantages:

[0019] Different types of motors under test have different dimensions, resulting in variations in the height and length of their output shafts. To ensure smooth connection of the output shaft to the connecting shaft of a torque sensor, this device uses an adjustment mechanism to adjust the position of the motor under test. During operation, the motor under test is first placed in the mounting slot. Then, a pressure piece is inserted into the adjusting screw, a washer is placed on top, and the locking bolt is tightened. The pressure piece and the mounting slot work together to fix the motor under test. The motor under test must have a circular outer shell and sufficient magnetism to secure a magnetically adsorbed vibration sensor. The user then rotates the crank handle to move the self-locking screw... The lever rotates, pushing the support component to move horizontally towards the torque sensor until it reaches the appropriate position. Because the crank transmits kinetic energy to the self-locking screw through the engagement of the large and small gears, the operation is faster and more efficient. Then, the servo motor is started to drive the lead screw to rotate, and the height of the fixed seat is adjusted using the movable part until the output shaft of the motor under test is at the appropriate height. At this point, the two set screws are tightened, and the zero-speed torque holding function of the servo motor is used to fix the fixed seat at the current height. This structure allows users to easily and quickly adjust the length and height of the output shaft of the motor under test, and the design is reasonable. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a motor vibration testing device according to the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of a motor vibration testing device according to the present invention. Figure 2 ;

[0023] Figure 3 This is a partial structural schematic diagram of a motor vibration testing device according to the present invention;

[0024] Figure 4 This is a partial structural breakdown diagram of a motor vibration testing device according to the present invention.

[0025] Explanation of key symbols:

[0026] 1. Support base; 2. Detection structure; 3. Adjustment structure; 4. Transmission structure; 5. Control module; 6. Data acquisition module; 7. Torque sensor; 8. Electromagnetic brake; 9. Pinion; 10. Gear; 11. Self-locking screw; 12. Slide groove; 13. Support component; 14. Guide rod; 15. Servo motor; 16. Lead screw; 17. Moving part; 18. Slider; 19. Fixed base; 20. Guide sleeve; 21. Vibration sensor; 22. Adjustment screw; 23. Mounting groove; 24. Shim; 25. Pressure component; 26. Locking nut; 27. Fixing bracket; 28. Set screw. Detailed Implementation

[0027] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a motor vibration testing device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a motor vibration testing device according to the present invention. Figure 2 ; Figure 3 This is a partial structural schematic diagram of a motor vibration testing device according to the present invention; Figure 4 This is a partial structural exploded view of a motor vibration testing device according to the present invention. The motor vibration testing device includes:

[0028] The support base 1 has a detection structure 2 and an adjustment structure 3 on its top. The adjustment structure 3 includes a support member 13, which is located on the upper side of the support base 1 and has a threaded sleeve fixedly connected to its bottom surface. The top of the support base 1 has a groove, and a self-locking screw 11 is rotatably connected between the inner walls of the left and right sides of the groove. The threaded sleeve and the self-locking screw 11 are threadedly connected, and a transmission structure 4 is installed at one end of the self-locking screw 11.

[0029] A fixed bracket 27 is fixedly connected to one end of the support member 13. A servo motor 15 is fixedly connected to the top of the fixed bracket 27. The output end of the servo motor 15 passes through the top of the fixed bracket 27 and is fixedly connected to a lead screw 16. The bottom of the lead screw 16 is rotatably connected to the top of the support member 13. A movable part 17 is threadedly connected to the surface of the lead screw 16. A fixed seat 19 is fixedly connected to the end of the movable part 17. An installation groove 23 is opened on the surface of the fixed seat 19. A pressure member 25 is set on the upper side of the fixed seat 19. Through holes are symmetrically opened on the surface of the pressure member 25. An adjusting screw 22 is inserted into the through holes. The bottom end of the adjusting screw 22 is fixedly connected to the top of the fixed seat 19. Guide sleeves 20 are fixedly connected to the front and rear side walls of the fixed seat 19. A guide rod 14 is inserted into the guide sleeve 20. The bottom of the guide rod 14 is fixedly connected to the top of the support 1.

[0030] like Figures 1-4As shown, the outer surface of the guide sleeve 20 is provided with a threaded hole, and the inside of the threaded hole is connected with a set screw 28. The end of the set screw 28 facing the fixed seat 19 abuts against the outer peripheral surface of the guide rod 14. The adjusting screw 22 located on the upper side of the pressure member 25 is fitted with a washer 24, and the surface of the adjusting screw 22 located on the upper side of the washer 24 is connected with a locking nut 26.

[0031] Different types of motors under test have different dimensions, resulting in variations in the height and length of their output shafts. To ensure smooth connection of the output shaft to the connecting shaft of the torque sensor 7, the device uses an adjustment structure 3 to adjust the position of the motor under test. During operation, the motor under test is first placed in the mounting slot 23. Then, the pressure piece 25 is inserted into the adjusting screw 22, the washer 24 is fitted, and the locking bolt is tightened. The pressure piece 25 and the mounting slot 23 work together to fix the motor under test. The motor under test must have a circular outer shell and sufficient magnetism to secure the magnetically adsorbed vibration sensor 21. Afterward, the user rotates the crank handle to rotate the self-locking screw 11. The crank handle rotates, which in turn pushes the support 13 to move horizontally towards the torque sensor 7 until it reaches the appropriate position. Since the crank handle transmits kinetic energy to the self-locking screw 11 through the cooperation of the large gear 10 and the small gear 9, the operation is faster and more efficient. Then, the servo motor 15 is started to drive the lead screw 16 to rotate, and the height of the fixed seat 19 is adjusted by the movable part 17 until the output shaft of the motor under test is at a suitable height. At this time, the two set screws 28 are tightened, and the zero-speed torque holding function of the servo motor 15 is used to fix the fixed seat 19 at the current height. This structure allows users to make flexible and quick adjustments according to the length and height of the output shaft of the motor under test. The design is reasonable.

[0032] like Figures 1-4 As shown, sliders 18 are fixedly connected to the bottom surfaces of the support members 13 located on the front and rear sides of the threaded sleeve, and grooves 12 are opened on the surfaces of the support seats 1 located on the front and rear sides of the groove. The two sliders 18 distributed in the front and rear are slidably connected to the grooves 12 on the adjacent side respectively.

[0033] By setting sliders 18 and 18, the support member 13 can remain stable during the horizontal sliding process through the cooperation of the self-locking screw 11 and the threaded sleeve.

[0034] like Figures 1-4 As shown, the transmission structure 4 includes a small gear 9, one end of the self-locking screw 11 passes through the side wall of the groove and is fixedly connected to the small gear 9, a large gear 10 meshes with one side of the small gear 9, the large gear 10 is rotatably connected to the support base 1, and a rocker handle is fixedly connected to the surface of the large gear 10.

[0035] The combination of large gear 10 and small gear 9 enables speed-up transmission, thereby improving the user's operating efficiency.

[0036] like Figures 1-4 As shown, the detection structure 2 includes a torque sensor 7, which is located on one side of the fixed base 19. The bottom of the torque sensor 7 is fixedly connected to the top surface of the support base 1 via a connecting bracket. An electromagnetic brake 8 is fixedly connected to the edge of the top surface of the support base 1 on the side away from the pinion 9. The motor under test is arranged inside the mounting groove 23. The top of the motor under test abuts against the bottom of the pressure piece 25. The output end of the motor under test is connected to the connecting shaft on one side of the torque sensor 7 via a coupling to achieve torque transmission. The other end of the torque sensor 7 is connected to the connecting end of the electromagnetic brake 8 via a coupling to achieve torque transmission. A vibration sensor 21 is magnetically connected to the housing of the motor under test.

[0037] When testing the motor under test, by using an electromagnetic brake 8, a torque sensor 7, and a vibration sensor 21, the motor under test can be subjected to load testing, thereby monitoring whether it has good stability under different conditions.

[0038] like Figures 1-4 As shown, a control module 5 and a data acquisition module 6 are fixedly connected to one edge of the top surface of the support base 1. The vibration sensor 21 and the torque sensor 7 are both electrically connected to the data acquisition module 6. The data acquisition module 6, the electromagnetic brake 8, and the servo motor 15 are all electrically connected to the control module 5.

[0039] The servo motor 15 can be used with the lead screw 16 and the movable part 17 to adjust the overall height of the fixed base 19, while the electromagnetic brake 8 can be used with the torque sensor 7 and the coupling to provide an appropriate load to the motor under test.

[0040] The working principle of the motor vibration testing device provided by this utility model is as follows:

[0041] Different types of motors under test have different dimensions, resulting in variations in the height and length of their output shafts. To ensure smooth connection of the output shaft to the connecting shaft of the torque sensor 7, the device uses an adjustment structure 3 to adjust the position of the motor under test. During operation, the motor under test is first placed in the mounting slot 23. Then, the pressure piece 25 is inserted into the adjusting screw 22, the washer 24 is fitted, and the locking bolt is tightened. The pressure piece 25 and the mounting slot 23 work together to fix the motor under test. The motor under test must have a circular outer shell and sufficient magnetism to secure the magnetically adsorbed vibration sensor 21. Afterward, the user rotates the crank handle to rotate the self-locking screw 11. The crank handle rotates, which in turn pushes the support 13 to move horizontally towards the torque sensor 7 until it reaches the appropriate position. Since the crank handle transmits kinetic energy to the self-locking screw 11 through the cooperation of the large gear 10 and the small gear 9, the operation is faster and more efficient. Then, the servo motor 15 is started to drive the lead screw 16 to rotate, and the height of the fixed seat 19 is adjusted by the movable part 17 until the output shaft of the motor under test is at a suitable height. At this time, the two set screws 28 are tightened, and the zero-speed torque holding function of the servo motor 15 is used to fix the fixed seat 19 at the current height. This structure allows users to make flexible and quick adjustments according to the length and height of the output shaft of the motor under test. The design is reasonable.

[0042] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0043] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A motor vibration testing device, characterized in that, The support includes a support base (1), and a detection structure (2) and an adjustment structure (3) are provided on the top of the support base (1). The adjustment structure (3) includes a support member (13). The support member (13) is located on the upper side of the support base (1), and a threaded sleeve is fixedly connected to the bottom surface of the support member (13). A groove is provided on the top of the support base (1). A self-locking screw (11) is rotatably connected between the inner walls of the left and right sides of the groove. The threaded sleeve and the self-locking screw (11) are threadedly connected. A transmission structure (4) is installed at one end of the self-locking screw (11). One end of the support member (13) is fixedly connected to a fixing frame (27), and a servo motor (15) is fixedly connected to the top of the fixing frame (27). The output end of the servo motor (15) passes through the top of the fixing frame (27) and is fixedly connected to a lead screw (16). The bottom of the lead screw (16) is rotatably connected to the top of the support member (13). A movable part (17) is threadedly connected to the surface of the lead screw (16), and a fixing seat (19) is fixedly connected to the end of the movable part (17). The surface of the fixing seat (19) is provided with mounting... The groove (23) is provided with a pressure member (25) on the upper side of the fixed seat (19). The pressure member (25) has through holes symmetrically opened on the front and back of its surface. An adjusting screw (22) is inserted into the through hole. The bottom end of the adjusting screw (22) is fixedly connected to the top of the fixed seat (19). Guide sleeves (20) are fixedly connected to the front and back side walls of the fixed seat (19). A guide rod (14) is inserted into the guide sleeve (20). The bottom of the guide rod (14) is fixedly connected to the top of the support seat (1).

2. The motor vibration testing device as described in claim 1, characterized in that, The outer surface of the guide sleeve (20) is provided with a threaded hole, and the inside of the threaded hole is connected with a set screw (28). The end of the set screw (28) facing the fixed seat (19) abuts against the outer peripheral surface of the guide rod (14). The adjusting screw (22) located on the upper side of the pressure member (25) is fitted with a washer (24), and the surface of the adjusting screw (22) located on the upper side of the washer (24) is threaded with a locking nut (26).

3. The motor vibration testing device as described in claim 2, characterized in that, The bottom surfaces of the support members (13) located on the front and rear sides of the threaded sleeve are fixedly connected with sliders (18), and the surfaces of the support seats (1) located on the front and rear sides of the groove are provided with grooves (12). The two sliders (18) distributed in front and behind are slidably connected to the grooves (12) on the adjacent side respectively.

4. The motor vibration testing device as described in claim 3, characterized in that, The transmission structure (4) includes a small gear (9), one end of the self-locking screw (11) passes through the side wall of the groove and is fixedly connected to the small gear (9), a large gear (10) meshes with one side of the small gear (9), the large gear (10) is rotatably connected to the support base (1) and a rocker arm is fixedly connected to the surface of the large gear (10).

5. The motor vibration testing device as described in claim 4, characterized in that, The detection structure (2) includes a torque sensor (7), which is located on one side of the fixed base (19) and the bottom of the torque sensor (7) is fixedly connected to the top surface of the support base (1) through a connecting bracket. An electromagnetic brake (8) is fixedly connected to the edge of the top surface of the support base (1) on the side away from the pinion (9). The motor to be tested is provided inside the mounting groove (23). The top of the motor to be tested abuts against the bottom of the pressure piece (25). The output end of the motor to be tested is connected to the connecting shaft on one side of the torque sensor (7) through a coupling. The other end of the torque sensor (7) is connected to the connecting end of the electromagnetic brake (8) through a coupling. A vibration sensor (21) is magnetically connected to the outer shell of the motor to be tested.

6. The motor vibration testing device as described in claim 5, characterized in that, The control module (5) and the data acquisition module (6) are fixedly connected to one edge of the top surface of the support base (1). The vibration sensor (21) and the torque sensor (7) are electrically connected to the data acquisition module (6). The data acquisition module (6), the electromagnetic brake (8) and the servo motor (15) are all electrically connected to the control module (5).

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