Multifunctional testing device for multi-specification dual-lead speed reducer

Abstract

The invention relates to the technical field of speed reducer testing, and discloses a multifunctional testing device for multi-specification dual-lead speed reducers. The device comprises a liftable speed reducer mounting plate, a speed reducer is placed on the speed reducer mounting plate, a motor is detachably and fixedly mounted on the speed reducer mounting plate, the output end of the motor is in transmission connection with the input end of the speed reducer, and the output end of a magnetic powder brake is in transmission connection with a test output shaft. Two toothed plates are slidably connected to the speed reducer mounting plate in the horizontal direction, a rotating rod located between the two toothed plates is rotatably connected to the speed reducer mounting plate, the rotating rod is fixedly sleeved with a first gear, and the first gear is meshed with the two toothed plates at the same time. Even if the interior of the speed reducer is damaged under the overload condition, large-amplitude displacement or bounce-off cannot be generated, the safety of surrounding personnel is prevented from being threatened, meanwhile, the magnetic powder brake and the motor can be protected, and the magnetic powder brake and the output shaft of the motor are prevented from being impacted and damaged.

Description

Technical Field

[0001] The invention relates to the technical field of speed reducer testing, and in particular to a multifunctional testing device for multi-specification double-lead speed reducers. Background Art

[0002] The reducer test bench is a test device for detecting the performance indicators of the reducer as a whole, including input torque, speed, power, output torque, speed, power, efficiency, temperature rise, vibration, noise, etc. During the test, the controller continuously increases the excitation current of the loader until the reducer power reaches the rated value. The input and output sensors generate two different signals due to the torque change, and the torque, speed, power at the input end and the torque, speed, power at the output end are displayed through the matching measuring instrument.

[0003] The existing reducer test bench is tested by placing the reducer on a mounting table and connecting the motor and brake to the output and input ends of the reducer respectively. The reducer has no fixing device, and its maximum torque and other data often need to be tested during testing. Therefore, when the torque load is increased, if the gears inside the reducer are stuck or the shaft is broken, the reducer will shake violently or even bounce off, threatening the safety of surrounding personnel, and it is also easy to cause impact on the motor and brake, and in severe cases, the reducer test bench will be damaged. Therefore, a multifunctional testing device for multi-specification double-lead reducers is proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a multifunctional testing device for dual-lead reducers of multiple specifications.

[0005] The present invention is implemented by the following technical scheme: it includes a liftable reducer mounting plate, the reducer is placed on the reducer mounting plate, the reducer mounting plate is detachably fixedly mounted with a motor, the output end of the motor is transmission connected to the input end of the reducer, the output end of the magnetic powder brake is transmission connected to the test output shaft, the reducer mounting plate is horizontally slidably connected with two tooth plates, the reducer mounting plate is rotatably connected with a rotating rod located between the two tooth plates, the rotating rod is fixedly sleeved with a gear 1, the gear 1 is simultaneously meshed with the two tooth plates, a clamping plate is fixedly mounted on the top of the tooth plate, the two clamping plates are located on the same horizontal plane, respectively on two opposite sides of the reducer and are symmetrically distributed with the reducer as a reference, the reducer mounting plate is movably connected with a brake member matching the gear 1, so that when the rotating rod is rotated, the two tooth plates are driven to move through the gear 1, so that the two clamping plates are synchronously approached to clamp the reducer or synchronously move away from the reducer.

[0006] As a further improvement of the above scheme, it also includes a test bench base, on which a lift is fixedly installed, and a plurality of guide shafts that can be slidably inserted into the test bench base are fixedly installed at the bottom of the reducer mounting plate so that when the lift controls the lifting of the reducer mounting plate, the guide shafts guide the reducer mounting plate.

[0007] As a further improvement of the above scheme, protrusions are fixedly installed on the opposite sides of the two clamps, and the protrusions are in contact with the front side of the reducer, so that the magnetic powder brake can push the reducer to contact with the protrusions after being connected to the reducer.

[0008] As a further improvement of the above scheme, a strip groove is provided on the side of the reducer mounting plate close to gear one, one end of the brake member extends into the strip groove to achieve a sliding connection with the reducer mounting plate, and an elastic member one is fixedly installed in the strip groove, one end of which resists the brake member, so that the elastic member one drives the brake member to move toward the side close to gear one to fix gear one.

[0009] As a further improvement of the above scheme, the brake member is rotatably connected to the side away from gear one, and a column is fixedly installed on the reducer mounting plate, so that after the brake member is pulled apart from gear one, the hook can be hooked on the column to fix the brake member.

[0010] As a further improvement of the above solution, a rubber pad is fixedly installed on the side of the brake member close to the gear one, and the side of the rubber pad close to the gear one is concave in an arc shape and the curvature is adapted to the gear one.

[0011] As a further improvement of the above scheme, at least two slide rails are fixedly installed on the test bench base, matching sliders are slidably installed on the slide rails, and the magnetic powder brake is fixedly installed on several sliders, so that the magnetic powder brake is more convenient and smooth when combined or separated with the reducer.

[0012] As a further improvement of the above scheme, it also includes a power-off protector and a sensor for detecting the torque of the magnetic powder brake, the input end of the power-off protector is electrically connected to the sensor, and the output end is electrically connected to the power supply end of the motor, so that the power supply of the motor is disconnected when the test torque reaches the rated value set by the power-off protector.

[0013] Compared with the prior art, the present invention has the following beneficial effects: When testing, after connecting the reducer to the motor and the magnetic powder brake, the rotating rod is turned to drive the gear 1 to rotate, so that the two tooth plates meshing with the gear 1 drive the two clamping plates to approach each other and contact with the two sides of the reducer to clamp it, and then the gear 1 is fixed by the brake so that the gear 1 cannot rotate, thereby fixing the position of the two clamping plates; This prevents the reducer from shaking during testing. Even if the reducer is damaged internally under overload conditions, it will not cause large displacement or bounce, thus avoiding threatening the safety of surrounding personnel. It can also protect the magnetic powder brake and motor, preventing damage to the output shaft of the magnetic powder brake and motor caused by impact. After the reducer is tested, the elastic member 1 is compressed by pulling the hook, and the brake member is separated from the gear 1. The hook is rotated and hooked on the column, and the brake member can be fixed in a position separated from the gear 1, so that the rotating rod is conveniently rotated to make the two clamping plates move away from each other to loosen the clamping of the reducer, so as to replace the new reducer to be tested. After the new reducer is placed and connected, the new reducer is clamped by rotating the rotating rod, and the hook is separated from the column by rotating. The elastic force of the elastic member 1 to restore its deformation can automatically push the brake member to move to contact with the gear 1 again to fix it, so as to start a new round of testing; When testing reducers of different sizes, the position can be easily adjusted to align with the output shaft of the magnetic powder brake, and the function of adjusting the height of the magnetic powder brake is added, so that the multifunctional testing device of multi-specification dual-lead reducers can be adapted to reducers of more sizes and types. For example, for a larger reducer, when the output shaft of the magnetic powder brake is still lower than the output end of the reducer after the reducer mounting plate is adjusted to the lowest position, the height of the magnetic powder brake can be adjusted to align them, so that the adaptation range is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall display diagram of a multifunctional testing device for multi-specification dual-lead reducers of the present invention; Figure 2 It is a front structural schematic diagram of a reducer mounting plate of a multi-functional testing device for multi-specification dual-lead reducers of the present invention; Figure 3 A multifunctional testing device for a multi-specification dual-lead reducer of the present invention Figure 1 A in the enlarged view; Figure 4 A multifunctional testing device for a multi-specification dual-lead reducer of the present invention Figure 2 The enlarged view of point B in the figure; Figure 5 The present invention is a schematic structural diagram of a U-shaped rod in a multifunctional testing device for multi-specification dual-lead reducers.

[0015] Description of main symbols: 1. Magnetic powder brake; 2. Speed ​​reducer; 3. Motor adapter Z-plate; 4. Test output shaft; 5. Motor; 6. Sensor mounting seat; 7. Speed ​​reducer mounting plate; 8. Test bench base; 9. Bottom plate; 10. Slide rail; 11. Slider; 12. Lifter; 13. Handwheel; 14. Guide shaft; 15. Bearing seat; 16. Tooth plate; 17. Clamp; 18. Rotating rod; 19. Gear 1; 20. Brake part; 21. Hook; 22. Strip groove; 23. Elastic part 1; 24. Column; 25. U-shaped rod; 26. Support; 27. Round rod; 28. Gear 2; 29. ​​Threaded seat; 30. Screw. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Please combine Figures 1 to 5 A multifunctional testing device for multi-specification dual-lead reducers, comprising a liftable reducer mounting plate 7, a reducer 2 placed on the reducer mounting plate 7, a motor 5 detachably fixedly mounted on the reducer mounting plate 7, an output end of the motor 5 drivingly connected to an input end of the reducer 2, an output end of the magnetic powder brake 1 drivingly connected to a test output shaft 4, two tooth plates 16 horizontally slidably connected to the reducer mounting plate 7, a rotating rod 18 located between the two tooth plates 16 rotatably connected to the reducer mounting plate 7, and a rotating rod 18 on the rotating rod 18 A gear 19 is fixedly sleeved thereon, and the gear 19 meshes with two tooth plates 16 at the same time. A clamping plate 17 is fixedly mounted on the top of the tooth plate 16. The two clamping plates 17 are located on the same horizontal plane and are respectively located on the opposite sides of the reducer 2 and are symmetrically distributed with the reducer 2 as a reference. A brake member 20 matching the gear 19 is movably connected to the reducer mounting plate 7, so that when the rotating rod 18 is rotated, the two tooth plates 16 are driven to move through the gear 19, so that the two clamping plates 17 are synchronously approached to clamp the reducer 2 or synchronously moved away from the reducer 2.

[0018] It also includes a test bench base 8, on which a lift 12 and a bearing seat 15 are fixedly installed, a hand wheel 13 passes through the bearing seat 15 and is transmission-connected to the input end of the lift 12, an output end of the lift 12 is fixedly connected to the reducer mounting plate 7, a plurality of guide shafts 14 are fixedly installed at the bottom of the reducer mounting plate 7, and one end of the guide shaft 14 away from the reducer mounting plate 7 can be slidably inserted into the test bench base 8, so that when the lift 12 controls the lifting and lowering of the reducer mounting plate 7, the guide shaft 14 guides the reducer mounting plate 7 to prevent the reducer mounting plate 7 from rotating or tipping over.

[0019] The two clamping plates 17 are fixedly mounted with raised blocks on opposite sides, and the raised blocks fit the front side of the reducer 2, so that the magnetic powder brake 1 can push the reducer 2 to contact with the raised blocks after being connected to the reducer 2, so as to achieve a better clamping effect.

[0020] A handle is fixedly mounted on one end of the rotating rod 18 away from the reducer mounting plate 7, so that the rotating rod 18 is more labor-saving and comfortable to operate.

[0021] Through the above technical scheme, when testing, after the reducer 2 is placed on the reducer mounting plate 7 and the motor 5 and the magnetic powder brake 1 are connected by transmission, the gear 19 can be driven to rotate by rotating the rotating rod 18, so that the two tooth plates 16 meshing with the gear 19 drive the two clamping plates 17 to approach each other and contact the two sides of the reducer 2 to clamp it, and then the gear 19 is fixed by the brake member 20, so that the gear 19 cannot rotate, thereby fixing the position of the two clamping plates 17. When testing, the reducer 2 is prevented from shaking. Even if the internal damage of the reducer 2 is caused under overload conditions, it will not cause large displacement or flying, threatening the safety of surrounding personnel. At the same time, it can also protect the magnetic powder brake 1 and the motor 5, and prevent the output shafts of the magnetic powder brake 1 and the motor 5 from being impacted and damaged.

[0022] Please combine Figure 1 Figure 2 Figure 4 A strip groove 22 is provided on one side of the reducer mounting plate 7 close to the gear 19, and one end of the brake member 20 extends into the strip groove 22 to achieve a sliding connection with the reducer mounting plate 7. An elastic member 23 with one end against the brake member 20 is fixedly installed in the strip groove 22, and the elastic member 23 restores the deformation direction toward the gear 19, so that the elastic member 23 drives the brake member 20 to move toward the side close to the gear 19 to fix the gear 19.

[0023] The side of the brake member 20 away from the gear 19 is rotatably connected with a hook 21, and the reducer mounting plate 7 is fixedly mounted with a column 24 located on the side of the hook 21 away from the gear 19. The distance between the hook 21 and the column 24 is smaller than the deformation distance of the elastic member 23, so that after the brake member 20 is pulled apart from the gear 19, the hook 21 can be hooked on the column 24 to temporarily fix the position of the brake member 20.

[0024] A rubber pad is fixedly installed on one side of the brake member 20 close to the gear 19. The side of the rubber pad close to the gear 19 is concave in an arc shape and the curvature is adapted to the gear 19, so that the gear 19 can be fixed at any time and the gear 19 will not rotate during the fixing process.

[0025] Through the above technical solution, after the reducer 2 is tested, the elastic member 23 is compressed by pulling the hook 21, and the brake member 20 is disengaged from the gear 19. The hook 21 is rotated and hooked on the column 24, so that the brake member 20 can be fixed in a position separated from the gear 19, and the rotating rod 18 is conveniently rotated to make the two clamps 17 move away from each other to loosen the clamping of the reducer 2, so as to replace the new reducer 2 to be tested. After placing and connecting the new reducer 2, the new reducer 2 is clamped by rotating the rotating rod 18, and the hook 21 is disengaged from the column 24 by rotating. The elastic force of the elastic member 23 to restore the deformation can automatically push the brake member 20 to move to contact with the gear 19 again to fix it, so as to start a new round of testing.

[0026] Please combine Figure 1 Figure 3 Figure 5 At least two slide rails 10 are fixedly installed on the test bench base 8, and matching sliders 11 are slidably installed on the slide rails 10. The magnetic powder brake 1 is fixedly installed on several sliders 11, so that the magnetic powder brake 1 is more convenient and smooth when combined with or separated from the reducer 2. Support plates are fixedly installed on several sliders 11. The magnetic powder brake 1 is slidably installed on the support plate and the sliding direction is perpendicular to the sliding direction of the slider 11, so as to facilitate the adjustment of the lateral position of the magnetic powder brake 1. The sensor mounting seat 6 is fixedly installed on the support plate, and a sensor is installed on the top of the sensor mounting seat 6. The detection end of the sensor faces the output shaft of the magnetic powder brake 1 to detect the torque of the magnetic powder brake 1.

[0027] At least two supports 26 are fixedly installed on opposite sides of the test bench base 8, and a round rod 27 is rotatably connected in the support 26. The bottom end of the round rod 27 is inserted into the gear 28. The two sides of the U-shaped rod 25 are slidably connected to the two opposite sides of the test bench base 8. The two opposite sides of the U-shaped rod 25 are provided with tooth grooves respectively meshing with the gear 28 on one side. The bottom plate 9 is located on the top of the test bench base 8, and the slide rail 10 is fixed on the bottom plate 9. The two opposite sides of the bottom plate 9 are connected to the test bench base 8. Threaded seats 29 corresponding to a plurality of supports 26 are fixedly installed on the sides, and a screw 30 with one end passing through the threaded seat 29 and threadedly connected to the threaded seat 29 is fixedly installed on the top of the round rod 27. The threaded connection directions of the threaded seats 29 and the screw 30 on different sides are opposite, so that when the U-shaped rod 25 is pulled to slide on the test bench base 8, the gears 28 on both sides are driven to rotate at the same time, so that the rotation of the screw 30 drives the bottom plate 9 to rise or fall at a constant angle, so as to adjust the height of the magnetic powder brake 1.

[0028] Through the above technical scheme, when testing reducers 2 of different sizes, the position can be conveniently adjusted to align with the output shaft of the magnetic powder brake 1, and the function of adjusting the height of the magnetic powder brake 1 is added, so that the multifunctional testing device of multi-specification dual-lead reducers can be adapted to reducers 2 of more sizes and types. For example, for a larger reducer 2, when the output shaft of the magnetic powder brake 1 is still lower than the output end of the reducer 2 after the reducer mounting plate 7 is adjusted to the lowest position, the height of the magnetic powder brake 1 can be adjusted to align them, so that the adaptation range is wider.

[0029] It also includes a power-off protector, the input end of the power-off protector is electrically connected to the sensor, and the output end is electrically connected to the power supply end of the motor (5), so that when the test torque reaches the rated value set by the power-off protector, the power supply of the motor (5) is disconnected, the output signal of the sensor is in the form of a current signal, the power-off protector includes an inductor element and a trigger switch, the input end of the inductor element is electrically connected to the sensor to detect the current output signal of the sensor, the output end of the inductor element is electrically connected to the input end of the start switch, and the output end of the start switch is electrically connected to the power supply end of the motor (5), and by presetting the threshold of the inductor element, when the current signal value of the sensor reaches the threshold of the inductor element, the trigger switch responds to disconnect the power supply connection of the motor (5). In a specific embodiment, the threshold set by the power-off protector is 500Nm.

[0030] The implementation principle of a multifunctional testing device for multi-specification dual-lead reducers in the embodiment of the present application is as follows: After placing the reducer 2, by turning the hand wheel 13, the elevator 12 adjusts the lifting of the reducer mounting plate 7, thereby adjusting the reducer 2 to a suitable height. If the adjustment range is not enough, the U-shaped rod 25 can be pulled to drive the gear 2 28 to rotate, thereby driving the round rod 27 and the screw 30 to rotate, and then the screw 30 drives the threaded seat 29 to rise and fall to adjust the height of the bottom plate 9, so as to adjust the height of the magnetic powder brake 1 installed on the bottom plate 9 to align it with the output end of the reducer 2, and the reducer 2 and After the motor 5 and the magnetic powder brake 1 are connected, the rotating rod 18 is rotated to make the gear 19 drive the two tooth plates 16 to move, thereby driving the two clamping plates 17 to approach each other until they contact the reducer 2, and then the hook 21 is removed from the column 24. The elastic force of the elastic member 23 to restore the deformation drives the brake member 20 to move to contact with the gear 19 and resist the gear 19, thereby fixing the gear 19 to fix the position of the two clamping plates 17, so that the reducer 2 can maintain its position unchanged without shaking during the test.

[0031] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A multifunctional testing device for multi-specification dual-lead reducers, characterized in that: The invention comprises a reducer mounting plate (7) which can be lifted and lowered, the reducer (2) being placed on the reducer mounting plate (7), a motor (5) being detachably fixedly mounted on the reducer mounting plate (7), the output end of the motor (5) being transmission-connected to the input end of the reducer (2), and the output end of the magnetic powder brake (1) being transmission-connected to the test output shaft (4); Two tooth plates (16) are slidably connected to the reducer mounting plate (7) in the horizontal direction, a rotating rod (18) located between the two tooth plates (16) is rotatably connected to the reducer mounting plate (7), a gear one (19) is fixedly sleeved on the rotating rod (18), the gear one (19) is meshed with the two tooth plates (16) at the same time, a clamping plate (17) is fixedly installed on the top of the tooth plate (16), the two clamping plates (17) are located on the same horizontal plane and are respectively located on opposite sides of the reducer (2) and are symmetrically distributed with the reducer (2) as a reference, and a brake member (20) matching the gear one (19) is movably connected to the reducer mounting plate (7); Thus, when the rotating rod (18) is rotated, the two tooth plates (16) are driven to move via the gear 1 (19), so that the two clamping plates (17) are synchronously moved closer to the clamping reducer (2) or synchronously moved away from the reducer (2).

2. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 1, characterized in that: The test bench also includes a test bench base (8), on which a lifter (12) is fixedly mounted, and a plurality of guide shafts (14) slidably inserted into the test bench base (8) are fixedly mounted at the bottom of the reducer mounting plate (7), so that when the lifter (12) controls the lifting and lowering of the reducer mounting plate (7), the guide shafts (14) guide the reducer mounting plate (7).

3. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 2, characterized in that: A protruding block is fixedly mounted on one side opposite to the two clamping plates (17), and the protruding block fits the front surface of the reducer (2), so that the magnetic powder brake (1) pushes the reducer (2) to contact the protruding block after being transmission-connected to the reducer (2).

4. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 1, characterized in that: A strip groove (22) is provided on a side of the reducer mounting plate (7) close to the gear one (19), one end of the brake member (20) extends into the strip groove (22) to achieve a sliding connection with the reducer mounting plate (7), and an elastic member (23) is fixedly installed in the strip groove (22) with one end abutting against the brake member (20), so that the elastic member (23) drives the brake member (20) to move toward a side close to the gear one (19) to fix the gear one (19).

5. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 4, characterized in that: A hook (21) is rotatably connected to the side of the brake member (20) away from the gear one (19), and a column (24) is fixedly mounted on the reducer mounting plate (7), so that after the brake member (20) is pulled apart from the gear one (19), the hook (21) can be hooked on the column (24) to fix the brake member (20).

6. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 4, characterized in that: A rubber pad is fixedly mounted on one side of the brake member (20) close to the gear one (19); the side of the rubber pad close to the gear one (19) is in an arc-shaped concave shape and the arc is adapted to the gear one (19).

7. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 2, characterized in that: At least two slide rails (10) are fixedly mounted on the test bench base (8), matching sliders (11) are slidably mounted on the slide rails (10), and the magnetic powder brake (1) is fixedly mounted on a plurality of sliders (11), thereby making it more convenient and smooth for the magnetic powder brake (1) to be combined with or separated from the reducer (2).

8. A multifunctional testing device for multi-specification dual-lead reducers as claimed in claim 7, characterized in that: It also includes a power-off protector and a sensor for detecting the torque of the magnetic powder brake (1), wherein the input end of the power-off protector is electrically connected to the sensor, and the output end is electrically connected to the power supply end of the motor (5), so that the power supply of the motor (5) is disconnected when the test torque reaches the rated value set by the power-off protector.

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