CN113267279A - Tubular motor torque testing device and method - Google Patents
Tubular motor torque testing device and method Download PDFInfo
- Publication number
- CN113267279A CN113267279A CN202110511838.7A CN202110511838A CN113267279A CN 113267279 A CN113267279 A CN 113267279A CN 202110511838 A CN202110511838 A CN 202110511838A CN 113267279 A CN113267279 A CN 113267279A
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- tubular motor
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- rotating speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
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Abstract
The invention discloses a tubular motor torque testing device and a testing method. The tubular motor that awaits measuring is fixed in the installing support by fixed subassembly, and the input of output shaft connection derailleur, the output of derailleur is located to resistance piece and tacho sensor interval. According to the invention, the tubular motor rotates, the speed changer amplifies or reduces the rotating speed of the tubular motor, the output end of the speed changer drives the resistance piece to overcome air resistance to rotate, the speed measuring sensor measures and calculates the actual output rotating speed of the speed changer, and whether the output torque of the tubular motor reaches the standard or not is judged by judging whether the resistance piece can reach the preset rotating speed after being acted by the air resistance during rotation. The tubular motor torque testing device is time-saving and labor-saving in operation and higher in testing efficiency.
Description
Technical Field
The invention relates to the technical field of testing equipment, in particular to a tubular motor torque testing device and a tubular motor torque testing method.
Background
Tubular motors are used in curtains, electric rolling doors, and the like. The limiting gear is connected with one end of the tubular motor, which is far away from the moving shaft, in a rotating manner, the tubular motor is hidden in the roller tube, the moving shaft of the tubular motor is fixedly connected with one end of the roller tube, the limiting gear of the tubular motor is fixedly connected with the other end of the roller tube, the moving shaft drives the roller tube to rotate, the roller tube drives the limiting gear to rotate, and therefore the lifting of the roller shutter curtain sheet is achieved, the shutter curtain sheet is wound on the roller tube during lifting, and slides down along the inner side of the guide rail during descending. The ascending, stopping and descending actions of the curtain are realized through the control of the remote controller.
At present, after the tubular motor is produced, the tubular motor needs to be detected to ensure that the performance of the tubular motor can meet daily use requirements. In the correlation technique, through hanging the heavy object on the tubulose motor output that awaits measuring to the moment of torsion size to the motor is tested, tests different tubulose motors, or when testing different moments of torsion, need change the heavy object of different qualities, and because the heavy object is through flexible piece hanging on its output shaft, therefore the stroke of its test and the shared space of testing arrangement are also great, and testing arrangement's use is very inconvenient.
Disclosure of Invention
The invention mainly aims to provide a tubular motor torque testing device, aiming at simplifying the testing operation process of a tubular motor and conveniently testing the tubular motor.
In order to achieve the above object, the present invention provides a torque testing device for a tubular motor, comprising:
mounting a bracket;
the fixing assembly is arranged on the mounting bracket and used for fixing the tubular motor; and
the testing component comprises a speed changer, a resistance piece and a speed measuring sensor, wherein the speed changer is arranged on the mounting bracket and is provided with an input end and an output end, the resistance piece and the speed measuring sensor are arranged at the output end at intervals, and the speed changer is driven by the tubular motor to rotate so as to drive the speed changer to overcome air resistance by the resistance piece.
Optionally, the resistance element comprises 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 against air resistance.
Optionally, the wind resistance part comprises a plurality of wind resistance plates, and the plurality of wind resistance plates are arranged at intervals along the circumferential direction of the body.
Optionally, the body is provided with a connecting hole penetrating through two opposite surfaces of the body, the output end comprises an output rotating shaft, and the output rotating shaft is arranged in the connecting hole in a penetrating manner.
Optionally, the test assembly further includes at least one bearing, the bearing is disposed on the mounting bracket, and the output rotating shaft penetrates through a bearing hole of the bearing.
Optionally, the input end includes a connection shaft sleeve, and the output shaft of the tubular motor is sleeved on the connection shaft sleeve.
Optionally, the fixing assembly includes a fixing member and a limiting member, the fixing member is disposed on one side of the transmission departing from the resistance member, and the limiting member is disposed on one side of the fixing member departing from the transmission and is close to or far away from the fixing member.
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 is provided with a fixing groove, a part of the tubular motor is accommodated in the fixing groove, and the quick clamp abuts against the outer side of the tubular motor.
Optionally, the limiting member includes a limiting seat and a limiting plate, the limiting seat is slidably connected to one 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, and the limiting plate abuts against the end of the tubular motor.
The invention also provides a tubular motor torque testing method, which comprises the following steps:
providing a tubular motor to be tested, a transmission and a resistance piece;
driving the tubular motor to be tested to rotate at a preset rotating speed, so that the speed changer overcomes air resistance provided by the resistance piece to rotate, and acquiring the actual output rotating speed of the speed changer;
and judging whether the actual output rotating speed is in a range of preset output rotating speed.
If the actual output rotating speed is within the range of the preset output rotating speed, judging that the torque of the tubular motor to be detected reaches the standard;
and if the actual output rotating speed is not in the range of the preset output rotating speed, judging that the torque of the tubular motor to be detected does not reach the standard.
The tubular motor torque testing device comprises a mounting support, a fixing assembly is arranged on the mounting support, the testing assembly comprises a speed changer, a resistance piece and a speed measuring sensor, and the speed changer is arranged on the mounting support and provided with an input end and an output end. The tubular motor to be tested is fixed on the mounting bracket through the fixing component, the output shaft of the tubular motor to be tested is connected to the input end of the speed changer, and the resistance piece and the speed measuring sensor are arranged at the output end of the speed changer at intervals. According to the invention, the tubular motor rotates, the speed changer amplifies or reduces the rotating speed of the tubular motor, the output end of the speed changer drives the resistance piece to overcome air resistance to rotate, the speed measuring sensor measures and calculates the actual output rotating speed of the speed changer, and whether the output torque of the tubular motor reaches the standard or not is judged by judging whether the resistance piece can reach the preset rotating speed after being acted by the air resistance during rotation.
The process can be seen that the rotating speed of the tubular motor is amplified or reduced through the transmission, the air resistance borne by the resistance piece is correspondingly increased or reduced, and different loads applied to the tubular motor to be tested can be simulated. On one hand, the tubular motor torque testing device does not need to mount a heavy object on the output shaft of the tubular motor, so that the tubular motor torque testing device is small in size and free of limit on testing time. On the other hand, only need change during the test different tubular motor that awaits measuring can, need not to change the load, tubular motor's test operation labour saving and time saving and efficiency are higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a torque testing apparatus for a tubular motor according to an embodiment of the present invention;
FIG. 2 is a top view of the tubular motor torque testing apparatus shown in FIG. 1;
FIG. 3 is a cross-sectional view of the tubular motor torque testing apparatus shown in FIG. 2 taken along the direction III-III;
FIG. 4 is an enlarged detail view taken at A in FIG. 3;
fig. 5 is a flowchart illustrating steps of a method for testing torque of a tubular motor according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a torque testing apparatus 100 for a tubular motor.
In an embodiment of the present invention, the tubular motor torque testing apparatus 100 includes a mounting bracket 10, where the mounting bracket 10 includes a frame body 11 and a sliding rail 12 fixed on the frame body 11, the frame body 11 is formed by splicing metal profiles, and the sliding rail 12 extends on a surface of the frame body 11.
The fixing component is arranged on the mounting bracket 10, the testing component 30 comprises a speed changer 31, a resistance piece 32 and a speed measuring sensor 33, and the speed changer 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 a fixing component, the output shaft thereof is connected to the input end of the transmission 31, and the resistance member 32 and the speed measuring sensor 33 are arranged at the output end of the transmission 31 at intervals. In the invention, the tubular motor 200 rotates, the speed changer 31 amplifies or reduces the rotating speed of the tubular motor 200, the output end of the speed changer 31 drives the resistance piece 32 to overcome air resistance to rotate, the speed measuring sensor 33 measures and calculates the actual output rotating speed of the speed changer 31, and whether the output torque of the tubular motor 200 reaches the standard or not is judged by judging whether the resistance piece 32 can reach the preset rotating speed after being acted by the air resistance during rotation.
It can be seen from the above process that the rotational speed of the tubular motor 200 is increased or decreased by the transmission 31, and the air resistance applied to the resistance element 32 is correspondingly increased or decreased, so that different loads applied to the tubular motor 200 to be tested can be simulated. On one hand, the tubular motor torque testing device 100 does not need to mount a heavy object on the output shaft of the tubular motor 200, so that the tubular motor torque testing device 100 is small in size, and the testing time is not limited. On the other hand, only need change different tubular motor 200 that awaits measuring during the test can, need not to change the load, tubular motor 200's test operation labour saving and time saving and efficiency are higher.
It should be noted that, in the present application, the transmission 31 is a gear accelerator, a plurality of gears engaged with each other are disposed in the gear accelerator, and by setting a transmission ratio reasonably, the preset rotation speed input by the input end of the tubular motor 200 is higher than the original rotation speed output by the output end of the tubular motor through acceleration of the gear accelerator, so that the resistance member 32 rotates at the preset rotation speed and provides a corresponding load. Of course, the transmission 31 may also be a gear retarder or other device capable of changing the rotation speed of the tubular motor 200, and the type and structure of the transmission 31 are not particularly limited.
In an 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, the body 321 rotates, and the wind resistance portion 322 rotates against the air resistance.
Specifically, the output end includes an output rotating shaft 312, the output rotating shaft 312 is connected to one of the gears in the transmission 31, the body 321 of the resistance member 32 is generally cylindrical and is provided with a connecting hole penetrating through two opposite surfaces of the body, the size of the connecting hole is slightly smaller than the diameter of the output rotating shaft 312, the output rotating shaft 312 is arranged in the connecting hole in a penetrating manner, and the outer side surface of the output rotating shaft is abutted against the hole side wall of the connecting hole to rotatably connect the body 321 and the output. The choke portion 322 includes a plurality of choke plates 3221, wherein the choke plates 3221 are rectangular plate-shaped structures, and are integrated with the body 321 into an integral structure, the plurality of choke plates 3221 are arranged at intervals along the circumferential direction of the body 321, the number of the choke plates 3221 may be specifically set according to actual needs, which is not specifically limited herein, and the speed measuring sensor 33 is connected to the output rotating shaft 312 through a coupling, and is located on one side of the body 321 away from the transmission 31.
When the tubular motor 200 is tested, the output rotating shaft 312 drives the body 321 to rotate, the plurality of choke plates 3221 rotate relative to the transmission 31, when the choke plates 3221 rotate at a high speed, the choke plates 3221 are in contact with air and are subjected to resistance from the air, the air resistance is reacted on the tubular motor 200 to be tested through the body 321 and the output rotating shaft 312 by the choke plates 3221, the actual rotating speed is measured and calculated through the speed measuring sensor 33, and compared with the theoretical rotating speed, so that whether the tubular motor 200 can reach the preset rotating speed after being loaded can be simulated, and whether the torque output of the tubular motor 200 is normal is further determined. Meanwhile, in this application, the resistance member 32 includes the body 321 and the plurality of choke plates 3221, the structure of the resistance member 32 is relatively simple, and the plurality of choke plates 3221 are uniformly arranged along the circumferential direction of the body 321 at intervals, and the air resistance received by the resistance member 32 is relatively uniform when the resistance member is rotated, that is, the load received by the tubular motor 200 when the resistance member is rotated is relatively constant, so that the test accuracy of the tubular motor torque test device 100 is improved to a relatively large extent.
The choke plate 3221 has a function of sufficiently colliding with air to receive resistance from the air when the body 321 rotates, and reacting the resistance of the air to the tubular motor 200, so it can be understood that the choke plate 3221 of the choke portion 322 may also be arc-shaped or spoon-shaped, so that the contact area of the choke plate 3221 with the air in a unit space is larger, the space utilization rate of the testing assembly 30 is higher, and the shape and structure of the choke plate 3221 are not particularly limited.
Referring to fig. 1 again, in an embodiment of the present invention, the testing assembly 30 further includes at least one bearing hole, the bearing hole is disposed in the mounting bracket 10, and the output rotating shaft 312 is disposed through the bearing hole of the bearing hole.
Specifically, in the present application, the testing component 30 includes two bearing holes, the surface of the mounting bracket 10 is protruded to form two bosses, the two bosses are located on two opposite sides of the resistance element 32 and are provided with through holes, one bearing hole is sleeved in one through hole, the output rotating shaft 312 of the transmission 31 sequentially penetrates 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 invention, the friction force applied to the connecting rotating shaft during rotation can be reduced by arranging the two bearing holes, and the acting force applied to the connecting rotating shaft during rotation mainly comes from the acting force of the wind resistance part 322, so that the authenticity and the accuracy of the simulation test of the tubular motor 200 are improved to a greater extent.
Referring to fig. 3 again, in an embodiment of the present invention, the input end includes a connecting shaft sleeve 311, wherein the connecting shaft sleeve 311 is located on the opposite side of the connecting shaft, the connecting shaft sleeve 311 is provided with a clamping hole, and when the tubular motor 200 is fixed to the mounting bracket 10, the output shaft of the tubular motor is clamped in the clamping hole to connect the tubular motor 200 and the transmission 31 in a transmission manner, so that the mounting and testing operations of the tubular motor 200 are simple, the dismounting efficiency of the tubular motor 200 to be tested is high, and the testing efficiency is improved to a large extent.
Further, the fixing assembly includes a fixing member 21 and a limiting member 22, the fixing member 21 is disposed on a side of the transmission 31 departing from the resistance member 32, and the limiting member 22 is disposed on a side of the fixing member 21 departing from the transmission 31 and can be close to or far from the fixing member 21.
Specifically, in an embodiment of the present invention, the fixing element 21 includes a fixing base 211 and a quick clamp 212 connected to the fixing base 211, and the limiting element 22 includes a limiting base 221 and a limiting plate 222, wherein the fixing base 211 is fixedly connected to the surface of the mounting bracket 10 by welding or screwing, and is provided with a fixing groove, a cross section of the fixing groove is semicircular, and the quick clamp 212 is disposed in a notch of the fixing groove; the limiting seat 221 is provided with a sliding groove, the sliding rail 12 of the mounting bracket 10 is embedded in the sliding groove, the limiting seat 221 is slidably connected with the frame body 11, and the limiting seat 221 is further provided with a fastening screw which is connected to the limiting seat 221 and can be abutted against the sliding rail 12, so as to fixedly connect the limiting seat 221 with the frame body 11.
In the present invention, the front end of the tubular motor 200 is received in the fixing groove, the quick clamp 212 abuts against the outer side surface of the tubular motor, the tubular motor 200 is pressed in 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 tubular motor 200 is relatively simple in fixing operation and can be relatively stably fixed to the mounting bracket 10, thereby preventing polarization of the tubular motor 200 due to high-speed rotation during testing, and improving the testing accuracy and protecting the tubular motor 200 to a greater extent. And the limiting member 22 can slide relative to the fixing member 21, so that the fixing assembly can adapt to tubular motors 200 with different lengths, and the compatibility of the tubular motor torque testing device 100 is improved.
Since the length of the tubular motor 200 is generally longer, in order to further improve the stability and accuracy of the tubular motor torque testing apparatus 100 in the testing process, in an embodiment of the present invention, the fixing assembly further includes a supporting seat 23, and the supporting 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, the two opposite ends of the tubular motor 200 are fixed by the fixing member 21 and the limiting member 22, and the middle part of the tubular motor is limited by the limiting groove on the supporting seat 23. Therefore, the polarization generated when the tubular motor 200 rotates at a high speed can be further reduced, and the test precision of the tubular motor 200 is improved.
Referring to fig. 5, the present invention further provides a method for testing torque of a tubular motor, which includes the steps of:
s10: providing a tubular motor 200 to be tested, a transmission 31 and a resistance piece 32;
in this step, the tubular motor 200 to be tested is connected to the transmission 31 through a connection structure in a transmission manner, and the resistance member 32 is connected to the transmission 31 through a connection structure, wherein the connection structure can be a coupling or a shaft sleeve or other connection structure, the tubular motor 200 to be tested drives the transmission 31 to rotate, and the transmission 31 drives the resistance member 32 to rotate.
S20: driving the tubular motor 200 to be tested to rotate at a preset rotating speed, so that the speed changer 31 overcomes the air resistance provided by the resistance piece 32 to rotate, and acquiring the actual output rotating speed of the speed changer 31;
in this step, the resistance element 32 is acted by the resistance from the air during the rotation process, and then acts against the transmission 31, i.e. simulates the load at the output end of the transmission 31, and the actual output rotation speed of the transmission 31 after being loaded is acquired through the speed sensor 33.
S30: and judging whether the actual output rotating speed is in a range of preset output rotating speed.
If the actual output rotating speed is within the range of the preset output rotating speed, the torque of the tubular motor 200 to be detected is judged to reach the standard;
and if the actual output rotating speed is not within the range of the preset output rotating speed, judging that the torque of the tubular motor 200 to be measured does not reach the standard.
Comparing the actual output rotating speed obtained in the above steps with a preset output rotating speed, and determining whether the actual output rotating speed is within a preset output rotating speed range, wherein the maximum value of the preset output rotating speed range should be the rotating speed of the tubular motor 200 to be measured when the tubular motor drives the transmission 31 to idle, that is, the rotating speed of the transmission 31 under the condition that the output end of the transmission 31 is unloaded, and the minimum value of the preset output rotating speed range can be set according to specific requirements. For example: setting a preset output rotating speed range value output by the transmission 31 to be 1500r/min-2000r/min under the condition that the tubular motor 200 to be detected drives the transmission 31 to rotate at a preset speed of 500r/min, acquiring whether the actual rotating speed of the transmission 31 rotating under the condition of overcoming the air resistance of the resistance piece 32 is within 1500r/min-2000r/min, and judging that the torque of the tubular motor 200 to be detected meets the standard requirement if the actual rotating speed is within the range of 1500r/min-2000 r/min; and if the torque is not within the range of 1500r/min-2000r/min, judging that the torque of the tubular motor 200 to be measured cannot meet the standard requirement.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A tubular motor torque testing device, comprising:
mounting a bracket;
the fixing assembly is arranged on the mounting bracket and used for fixing the tubular motor; and
the testing component comprises a speed changer, a resistance piece and a speed measuring sensor, wherein the speed changer is arranged on the mounting bracket and is provided with an input end and an output end, the resistance piece and the speed measuring sensor are arranged at the output end at intervals, and the speed changer is driven by the tubular motor to rotate so as to drive the speed changer to overcome air resistance by the resistance piece.
2. The tubular motor torque testing device of claim 1, wherein the resistance member includes a body and a choke portion connected to the body, the body connected to the output of the transmission, the body rotating, the choke portion rotating against air resistance.
3. The tubular motor torque testing device of claim 2, wherein the choke portion includes a plurality of choke plates arranged at intervals along a circumferential direction of the body.
4. The tubular motor torque testing device according to claim 2, wherein the body is provided with a connecting hole penetrating through two opposite surfaces of the body, the output end comprises an output rotating shaft, and the output rotating shaft is arranged through the connecting hole.
5. The tubular motor torque testing device according to claim 4, wherein the testing assembly further comprises at least one bearing, the bearing is disposed on the mounting bracket, and the output rotating shaft is disposed through a bearing hole of the bearing.
6. The tubular motor torque testing device of claim 1, wherein the input end comprises a connecting bushing, and the output shaft of the tubular motor is sleeved on the connecting bushing.
7. The tubular motor torque testing device according to any one of claims 1 to 6, wherein the fixing assembly includes a fixing member and a limiting member, the fixing member is disposed on a side of the transmission facing away from the resistance member, and the limiting member is disposed on a side of the fixing member facing away from the transmission and can be close to or far from the fixing member.
8. The tubular motor torque testing device according to claim 7, wherein 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, a portion of the tubular motor is accommodated in the fixing groove, and the quick clamp abuts against an outer side of the tubular motor.
9. The tubular motor torque testing device according to claim 8, wherein the limiting member comprises 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, and the limiting plate abuts against an end of the tubular motor.
10. A tubular motor torque testing method is characterized by comprising the following steps:
providing a tubular motor to be tested, a transmission and a resistance piece;
driving the tubular motor to be tested to rotate at a preset rotating speed, so that the speed changer overcomes air resistance provided by the resistance piece to rotate, and acquiring the actual output rotating speed of the speed changer;
judging whether the actual output rotating speed is in a range of preset output rotating speed or not;
if the actual output rotating speed is within the range of the preset output rotating speed, judging that the torque of the tubular motor to be detected reaches the standard;
and if the actual output rotating speed is not in the range of the preset output rotating speed, judging that the torque of the tubular motor to be detected does not reach the standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511838.7A CN113267279A (en) | 2021-05-11 | 2021-05-11 | Tubular motor torque testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511838.7A CN113267279A (en) | 2021-05-11 | 2021-05-11 | Tubular motor torque testing device and method |
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| Publication Number | Publication Date |
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| CN113267279A true CN113267279A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110511838.7A Pending CN113267279A (en) | 2021-05-11 | 2021-05-11 | Tubular motor torque testing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441195A (en) * | 2022-02-16 | 2022-05-06 | 河南中烟工业有限责任公司 | Quick detection device of motor trouble |
| CN114544054A (en) * | 2022-04-28 | 2022-05-27 | 江西省水润科技发展有限公司 | Air resistance type water pump driving motor torque testing device and using method thereof |
-
2021
- 2021-05-11 CN CN202110511838.7A patent/CN113267279A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441195A (en) * | 2022-02-16 | 2022-05-06 | 河南中烟工业有限责任公司 | Quick detection device of motor trouble |
| CN114544054A (en) * | 2022-04-28 | 2022-05-27 | 江西省水润科技发展有限公司 | Air resistance type water pump driving motor torque testing device and using method thereof |
| CN114544054B (en) * | 2022-04-28 | 2022-08-02 | 江西省水润科技发展有限公司 | Air-resistance type water pump driving motor torque testing device and using method thereof |
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