Tubular motor torque testing device and method

Abstract

The present invention discloses a tubular motor torque test device and a test method. The tubular motor torque test device includes a mounting bracket, a fixing assembly is arranged on the mounting bracket, and the test assembly includes a transmission, a resistance member and a speed sensor. The transmission is arranged on the mounting bracket and has an input end and an output end. The tubular motor to be tested is fixed to the mounting bracket by the fixing assembly, the output shaft is connected to the input end of the transmission, and the resistance member and the speed sensor are arranged at intervals at the output end of the transmission. In the present invention, the tubular motor rotates, the transmission amplifies or reduces the speed of the tubular motor, the output end of the transmission drives the resistance member to rotate to overcome air resistance, and the speed sensor measures the actual output speed of the transmission. By judging whether the resistance member can reach a predetermined speed after being affected by air resistance during rotation, it is judged whether the output torque of the tubular motor meets the standard. The tubular motor torque test device of the present invention saves time and effort to operate and has higher test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of testing equipment, and in particular to a tubular motor torque testing device and a tubular motor torque testing method. Background Art

[0002] Tubular motors are mostly used for curtains and electric rolling shutters. The end of the tubular motor away from the moving shaft is rotatably connected to the limit gear. The tubular motor is hidden in the reel. The moving shaft of the tubular motor is fixedly connected to one end of the reel, and the limit gear of the tubular motor is fixedly connected to the other end of the reel. The moving shaft drives the reel to rotate, and the reel drives the limit gear to rotate, thereby realizing the lifting and lowering of the rolling curtain. When rising, the curtain is wound on the reel, and when falling, the curtain slides down along the inner side of the guide rail. The curtain can be raised, stopped, and lowered by the remote control.

[0003] At present, after the tubular motor is produced, it needs to be tested to ensure that its performance can meet the daily use requirements. In the related art, a weight is mounted on the output end of the tubular motor to be tested to test the torque of the motor. When testing different tubular motors or testing different torques, it is necessary to replace the weights of different masses. Since the weight is mounted on its output shaft through a flexible part, the test stroke and the space occupied by the test device are also large, and the use of the test device is very inconvenient. Summary of the invention

[0004] The main purpose of the present invention is to provide a tubular motor torque testing device, aiming to simplify the testing operation process of the tubular motor and facilitate the testing thereof.

[0005] To achieve the above-mentioned purpose, the tubular motor torque testing device proposed in the present invention comprises:

[0006] Mounting bracket;

[0007] a fixing assembly, the fixing assembly being arranged on the mounting bracket and being used for fixing the tubular motor; and

[0008] A test assembly, the test assembly includes a transmission, a resistance member and a speed sensor, the transmission is arranged on the mounting bracket and has an input end and an output end, the resistance member and the speed sensor are arranged at intervals at the output end, and the tubular motor drives the transmission to rotate so that the transmission drives the resistance member to overcome air resistance.

[0009] Optionally, the resistance member includes a body and a wind resistance portion connected to the body, the body is connected to an output end of the transmission, and when the body rotates, the wind resistance portion rotates to overcome air resistance.

[0010] Optionally, the wind resistance portion includes a plurality of wind resistance plates, and the plurality of wind resistance plates are arranged at intervals along the circumference of the body.

[0011] Optionally, the body is provided with a connection hole penetrating two opposite surfaces thereof, and the output end comprises an output shaft, and the output shaft is passed through the connection hole.

[0012] Optionally, the test assembly further includes at least one bearing, the bearing is disposed on the mounting bracket, and the output shaft passes through a bearing hole of the bearing.

[0013] Optionally, the input end includes a connecting sleeve, and the output shaft of the tubular motor is sleeved on the connecting sleeve.

[0014] Optionally, the fixing assembly includes a fixing member and a limiting member, the fixing member is arranged on a side of the transmission away from the resistance member, and the limiting member is arranged on a side of the fixing member away from the transmission and can be close to or away from the fixing member.

[0015] Optionally, the fixing member includes a fixing seat and a quick clamp connected to the fixing seat, the fixing seat is fixedly connected to the mounting bracket and has a fixing groove, part of the tubular motor is accommodated in the fixing groove, and the quick clamp abuts against the outer side of the tubular motor.

[0016] Optionally, the limiting member includes a limiting seat and a limiting plate, the limiting seat is slidably connected to the side of the fixed seat away from the transmission, the limiting plate is connected to the limiting seat, the limiting seat slides relative to the fixed seat, and the limiting plate abuts against the end of the tubular motor.

[0017] The present invention also provides a tubular motor torque testing method, the steps of the tubular motor torque testing method comprising:

[0018] Provide the tubular motor, transmission and resistance parts to be tested;

[0019] driving the tubular motor to be tested to rotate at a preset speed so that the transmission overcomes the air resistance provided by the resistance member and rotates, and collecting the actual output speed of the transmission;

[0020] Determine whether the actual output speed is within a range of a preset output speed.

[0021] If the actual output speed is within the range of the preset output speed, it is determined that the torque of the tubular motor to be tested meets the standard;

[0022] If the actual output speed is not within the range of the preset output speed, it is determined that the torque of the tubular motor to be tested does not meet the standard.

[0023] The technical solution of the present invention is a tubular motor torque test device comprising a mounting bracket, a fixing assembly arranged on the mounting bracket, a test assembly comprising a transmission, a resistance member and a speed sensor, and the transmission is arranged on the mounting bracket and has an input end and an output end. The tubular motor to be tested is fixed to the mounting bracket by the fixing assembly, and its output shaft is connected to the input end of the transmission, and the resistance member and the speed sensor are arranged at intervals at the output end of the transmission. In the present invention, the tubular motor rotates, the transmission amplifies or reduces the speed of the tubular motor, the output end of the transmission drives the resistance member to rotate to overcome the air resistance, and the speed sensor measures the actual output speed of the transmission, and judges whether the resistance member can reach the predetermined speed after being affected by the air resistance during rotation, thereby judging whether the output torque of the tubular motor meets the standard.

[0024] From the above process, it can be seen that the present invention amplifies or decreases the rotation speed of the tubular motor through the transmission, and the air resistance of the resistance member increases or decreases accordingly, and at this time, different loads applied to the tubular motor to be tested can be simulated. On the one hand, the tubular motor torque testing device of the present invention does not need to mount heavy objects on the output shaft of the tubular motor, so that the volume of the tubular motor torque testing device is small and the test time is not limited. On the other hand, during the test, it is only necessary to replace different tubular motors to be tested without replacing the load. The test operation of the tubular motor saves time and effort and is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of a tubular motor torque testing device of the present invention;

[0027] Figure 2 for Figure 1 A top view of a tubular motor torque test apparatus is shown;

[0028] Figure 3 for Figure 2 A cross-sectional view of the tubular motor torque test device along line III-III;

[0029] Figure 4 for Figure 3 A magnified detail of the center A;

[0030] Figure 5 This is a flowchart of the steps of the tubular motor torque testing method proposed by the present invention.

[0031] Description of Figure Numbers:

[0032]

[0033]

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Reference Figures 1 to 4 The present invention provides a tubular motor torque testing device 100 .

[0039] In an embodiment of the present invention, the tubular motor torque testing device 100 includes a mounting bracket 10, which includes a frame 11 and a slide rail 12 fixed to the frame 11. The frame 11 is formed by splicing metal profiles, and the slide rail 12 is extended on the surface of the frame 11.

[0040] The fixing assembly is arranged on the mounting bracket 10, and the test assembly 30 includes a transmission 31, a resistance member 32 and a speed sensor 33. The transmission 31 is arranged on the mounting bracket 10 and has an input end and an output end. The tubular motor 200 to be tested is fixed to the mounting bracket 10 by the fixing assembly, and its output shaft is connected to the input end of the transmission 31. The resistance member 32 and the speed sensor 33 are arranged at intervals at the output end of the transmission 31. In the present invention, the tubular motor 200 rotates, and the transmission 31 amplifies or reduces the speed of the tubular motor 200. The output end of the transmission 31 drives the resistance member 32 to rotate to overcome the air resistance. The speed sensor 33 measures the actual output speed of the transmission 31. By judging whether the resistance member 32 can reach the predetermined speed after being affected by the air resistance during rotation, it is judged whether the output torque of the tubular motor 200 meets the standard.

[0041] From the above process, it can be seen that the present invention amplifies or reduces the rotation speed of the tubular motor 200 through the transmission 31, and the air resistance of the resistance member 32 is correspondingly increased or reduced, and at this time, different loads applied to the tubular motor 200 to be tested can be simulated. On the one hand, the tubular motor torque test device 100 of the present invention does not need to hang heavy objects on the output shaft of the tubular motor 200, so that the volume of the tubular motor torque test device 100 is small and the test time is not limited. On the other hand, during the test, it is only necessary to replace different tubular motors 200 to be tested, and there is no need to replace the load. The test operation of the tubular motor 200 saves time and effort and is more efficient.

[0042] It should be noted that the transmission 31 in the present application is a gear accelerator, and a plurality of meshing gears are arranged in the gear accelerator. By reasonably setting the transmission ratio, the preset speed input by the input end of the tubular motor 200 is accelerated by the gear accelerator, and the speed output by the output end is higher than the original speed, so that the resistance member 32 rotates at a preset speed and provides a corresponding load. The working structure and principle of the gear accelerator are relatively mature technologies and will not be described in detail here. Of course, the transmission 31 can also be a gear retarder, or other devices that can change the speed of the tubular motor 200, and the type and structure of the transmission 31 are not specifically limited here.

[0043] In one embodiment of the present invention, the resistance member 32 includes a body 321 and a wind resistance portion 322 connected to the body 321 . The body 321 is connected to the output end of the transmission 31 . When the body 321 rotates, the wind resistance portion 322 rotates to overcome air resistance.

[0044] Specifically, the output end includes an output shaft 312, which is connected to one of the gears in the transmission 31. The body 321 of the resistance member 32 is cylindrical as a whole, and is provided with a connection hole penetrating its two opposite surfaces. The size of the connection hole is slightly smaller than the diameter of the output shaft 312. The output shaft 312 is inserted into the connection hole, and its outer side surface abuts against the hole side wall of the connection hole, so as to connect the body 321 and the output rotation. The wind resistance part 322 includes a plurality of wind resistance plates 3221, wherein the wind resistance plates 3221 are rectangular plate-shaped structures and are integrally formed with the body 321. The plurality of wind resistance plates 3221 are arranged at intervals along the circumference of the body 321. The number of wind resistance plates 3221 can be specifically set according to actual needs and is not specifically limited here. The speed sensor 33 is connected to the output shaft 312 through a coupling and is located on the side of the body 321 away from the transmission 31.

[0045] When the tubular motor 200 is tested, the output shaft 312 drives the body 321 to rotate, and the plurality of choke plates 3221 rotate relative to the transmission 31. When the choke plates 3221 rotate at high speed, the choke plates 3221 come into contact with the air and are subject to resistance from the air. The choke plates 3221 react the air resistance to the tubular motor 200 to be tested through the body 321 and the output shaft 312. The actual rotation speed is measured by the speed sensor 33 and compared with the theoretical rotation speed. In this way, it is possible to simulate whether the tubular motor 200 can reach the preset rotation speed after being loaded, and then determine whether the torque output of the tubular motor 200 is normal. The testing method is simple and effective, and the structure of the testing component 30 is relatively simple. At the same time, in the present application, the resistance member 32 includes a main body 321 and a plurality of wind blocking plates 3221. The structure of the resistance member 32 is relatively simple, and the plurality of wind blocking plates 3221 are evenly spaced along the circumference of the main body 321. When the resistance member 32 rotates, the air resistance it is subjected to is relatively uniform, that is, the load on the tubular motor 200 when it rotates is relatively constant, thereby greatly improving the test accuracy of the tubular motor torque testing device 100.

[0046] The function of the air blocking plate 3221 is to fully resist the air when the main body 321 rotates, so as to be subjected to the resistance from the air and react the air resistance to the tubular motor 200. Therefore, it can be understood that the air blocking plate 3221 of the wind resistance part 322 can also be arc-shaped or spoon-shaped, so that the contact area of ​​the air blocking plate 3221 with the air in a unit space is larger, and the space utilization rate of the test component 30 is also higher. The shape structure of the air blocking plate 3221 is not specifically limited here.

[0047] Please see again Figure 1In one embodiment of the present invention, the test assembly 30 further includes at least one bearing hole, the bearing hole is disposed on the mounting bracket 10, and the output shaft 312 is passed through the bearing hole of the bearing hole.

[0048] Specifically, in the present application, the test assembly 30 includes two bearing holes, and the surface of the mounting bracket 10 is convexly provided with two bosses, which are located on opposite sides of the resistance member 32 and have through holes, one bearing hole is sleeved in one through hole, and the output shaft 312 of the transmission 31 is sequentially passed through the bearing hole of one of the bearing holes, the connecting hole of the body 321 and the bearing hole of the other bearing hole, and is connected to the speed sensor 33. In the present invention, by providing two bearing holes, the friction force on the connecting shaft during rotation can be reduced, so that the force on the connecting shaft during rotation mainly comes from the force of the wind resistance part 322, thereby greatly improving the authenticity and accuracy of the simulation test of the tubular motor 200.

[0049] Please see again Figure 3 In one embodiment of the present invention, the input end includes a connecting sleeve 311, wherein the connecting sleeve 311 is located on the opposite side of the connecting shaft, and the connecting sleeve 311 is provided with a clamping hole. When the tubular motor 200 is fixed to the mounting bracket 10, its output shaft is clamped in the clamping hole to connect the tubular motor 200 and the transmission 31 in a transmission manner. In this way, the installation and testing operation of the tubular motor 200 is relatively simple, and the disassembly and assembly efficiency of the tubular motor 200 to be tested is relatively high, thereby greatly improving the efficiency of the test.

[0050] Furthermore, the fixing assembly includes a fixing member 21 and a limiting member 22. The fixing member 21 is arranged on a side of the transmission 31 away from the resistance member 32, and the limiting member 22 is arranged on a side of the fixing member 21 away from the transmission 31 and can be close to or away from the fixing member 21.

[0051] Specifically, in one embodiment of the present invention, the fixing member 21 includes a fixing seat 211 and a quick clip 212 connected to the fixing seat 211, and the limiting member 22 includes a limiting seat 221 and a limiting plate 222, wherein the fixing seat 211 is fixedly connected to the surface of the mounting bracket 10 by welding or threaded connection, and is provided with a fixing groove, the cross-section of the fixing groove is semicircular, and the quick clip 212 is arranged at the notch of the fixing groove; a sliding groove is provided on the limiting seat 221, and the slide rail 12 of the mounting bracket 10 is embedded in the sliding groove to slide the limiting seat 221 and the frame 11 together, and a fastening screw is also provided on the limiting seat 221, which is connected to the limiting seat 221 and can abut against the slide rail 12 to fix the limiting seat 221 and the frame 11 together.

[0052] In the present invention, the front end of the tubular motor 200 is accommodated in the fixing groove, and the quick clamp 212 abuts against the outer side thereof, so that the tubular motor 200 is pressed into the fixing groove, and the limiting plate 222 abuts against the end of the tubular motor 200 by sliding the limiting seat 221, so that the fixing operation of the tubular motor 200 is relatively simple, and it can be relatively firmly fixed to the mounting bracket 10, thereby avoiding the polarization of the tubular motor 200 due to high-speed rotation during the test, while improving the test accuracy, protecting the tubular motor 200 to a greater extent. In addition, the limiting member 22 can slide relative to the fixing member 21, so that the fixing assembly can adapt to tubular motors 200 of different lengths, thereby improving the compatibility of the tubular motor torque test device 100.

[0053] Since the length of the tubular motor 200 is generally long, in order to further improve the stability and accuracy of the tubular motor torque test device 100 during testing, in one embodiment of the present invention, the fixing assembly further includes a support seat 23, the support seat 23 is slidably connected to the mounting bracket 10, and is located between the fixing seat 211 and the limiting seat 221. The supporting seat 23 is provided with a limiting groove, and the opposite ends of the tubular motor 200 are fixed by the fixing member 21 and the limiting member 22, and the middle part is limited by the limiting groove on the supporting seat 23. In this way, the polarization generated by the tubular motor 200 when rotating at high speed can be further reduced, and the accuracy of the test of the tubular motor 200 can be improved.

[0054] See also Figure 5 The present invention also provides a tubular motor torque testing method, the steps of the tubular motor torque testing method comprising:

[0055] S10: providing a tubular motor 200 to be tested, a transmission 31 and a resistance member 32;

[0056] In this step, the tubular motor 200 to be tested is connected to the transmission 31 through a connecting structure, and the resistance member 32 is connected to the transmission 31 through a connecting structure, wherein the connecting structure can be a connecting structure such as a coupling or a sleeve. The tubular motor 200 to be tested drives the transmission 31 to rotate, and the transmission 31 drives the resistance member 32 to rotate.

[0057] S20: driving the tubular motor 200 to be tested to rotate at a preset speed, so that the transmission 31 can rotate by overcoming the air resistance provided by the resistance member 32, and collecting the actual output speed of the transmission 31;

[0058] In this step, the resistance member 32 is affected by the air resistance during the rotation, and then reacts to the transmission 31, that is, the load is simulated at the output end of the transmission 31, and the actual output speed of the transmission 31 after being loaded is collected by the speed sensor 33.

[0059] S30: Determine whether the actual output speed is within a range of a preset output speed.

[0060] If the actual output speed is within the range of the preset output speed, it is determined that the torque of the tubular motor 200 to be tested meets the standard;

[0061] If the actual output speed is not within the range of the preset output speed, it is determined that the torque of the tubular motor 200 to be tested does not meet the standard.

[0062] The actual output speed obtained in the above step is compared with the preset output speed to determine whether the actual output speed is within the preset output speed range, wherein the maximum value of the preset output speed range should be the speed of the tubular motor 200 to be tested when driving the transmission 31 to idle, that is, the rotation speed of the transmission 31 when there is no load on the output end of the transmission 31, and the minimum value of the preset output speed range can be set according to specific needs. For example, when the tubular motor 200 to be tested drives the transmission 31 to rotate at a preset speed of 500 r / min, the preset output speed range value of the transmission 31 should be 1500 r / min-2000 r / min, and the actual speed of the transmission 31 when overcoming the air resistance of the resistance member 32 is collected to determine whether it is within the range of 1500 r / min-2000 r / min. If it is within the range of 1500 r / min-2000 r / min, it is determined that the torque of the tubular motor 200 to be tested meets the standard requirements; if it is not within the range of 1500 r / min-2000 r / min, it is determined that the torque of the tubular motor 200 to be tested does not meet the standard requirements.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tubular motor torque test device, characterized in that: include: Mounting bracket; A fixing assembly, the fixing assembly being arranged on the mounting bracket and being used for fixing the tubular motor; as well as A test assembly, the test assembly includes a transmission, a resistance member and a speed sensor, the transmission is arranged on the mounting bracket and has an input end and an output end, the resistance member and the speed sensor are arranged at the output end at intervals, the tubular motor drives the transmission to rotate so that the transmission drives the resistance member to overcome air resistance, the resistance member includes a body and a wind resistance part connected to the body, the body is connected to the output end of the transmission, the body rotates, and the wind resistance part rotates to overcome the air resistance; When the tubular motor rotates, the transmission amplifies or reduces the speed of the tubular motor, the output end of the transmission drives the resistance member to rotate to overcome the air resistance, and the speed sensor measures the actual output speed of the transmission; The test assembly includes two bearing holes. The surface of the mounting bracket is convexly provided with two bosses. The two bosses are located on opposite sides of the resistance member and are provided with through holes. One bearing hole is sleeved in the other through hole. The output shaft of the transmission is sequentially passed through the bearing hole of one of the bearing holes, the connecting hole of the main body and the bearing hole of the other bearing hole, and is connected to the speed sensor.

2. The tubular motor torque testing device according to claim 1, characterized in that: The wind resistance portion includes a plurality of wind resistance plates, and the plurality of wind resistance plates are arranged at intervals along the circumferential direction of the body.

3. The tubular motor torque testing device according to claim 1, characterized in that: The body is provided with a connecting hole penetrating through two opposite surfaces thereof, and the output end comprises an output rotating shaft, and the output rotating shaft is passed through the connecting hole.

4. The tubular motor torque testing device according to claim 3, characterized in that: The test assembly further comprises at least one bearing, wherein the bearing is arranged on the mounting bracket, and the output shaft passes through a bearing hole of the bearing.

5. The tubular motor torque testing device according to claim 1, characterized in that: The input end comprises a connecting sleeve, and the output shaft of the tubular motor is sleeved on the connecting sleeve.

6. The tubular motor torque testing device according to any one of claims 1 to 5, characterized in that: The fixing assembly includes a fixing member and a limiting member. The fixing member is arranged on a side of the transmission away from the resistance member, and the limiting member is arranged on a side of the fixing member away from the transmission and can be close to or away from the fixing member.

7. The tubular motor torque testing device according to claim 6, characterized in that: The fixing member includes a fixing seat and a quick clamp connected to the fixing seat, the fixing seat is fixedly connected to the mounting bracket and is provided with a fixing groove, part of the tubular motor is accommodated in the fixing groove, and the quick clamp abuts against the outer side of the tubular motor.

8. The tubular motor torque testing device according to claim 7, characterized in that: The limiting member includes a limiting seat and a limiting plate. The limiting seat is slidably connected to a side of the fixing seat away from the transmission. The limiting plate is connected to the limiting seat. The limiting seat slides relative to the fixing seat. The limiting plate abuts against the end of the tubular motor.

9. A method for testing torque of a tubular motor, using the tubular motor torque testing device as claimed in any one of claims 1 to 8, characterized in that: The steps of the tubular motor torque testing method include: Provide the tubular motor, transmission and resistance parts to be tested; driving the tubular motor to be tested to rotate at a preset speed so that the transmission overcomes the air resistance provided by the resistance member and rotates, and collecting the actual output speed of the transmission; Determining whether the actual output speed is within a range of a preset output speed; If the actual output speed is within the range of the preset output speed, it is determined that the torque of the tubular motor to be tested meets the standard; If the actual output speed is not within the range of the preset output speed, it is determined that the torque of the tubular motor to be tested does not meet the standard.

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