CN114112364A - Electric roller performance test method - Google Patents
Electric roller performance test method Download PDFInfo
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- CN114112364A CN114112364A CN202111449850.6A CN202111449850A CN114112364A CN 114112364 A CN114112364 A CN 114112364A CN 202111449850 A CN202111449850 A CN 202111449850A CN 114112364 A CN114112364 A CN 114112364A
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- permanent magnet
- magnet synchronous
- electric roller
- loading
- roller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a method for testing the performance of an electric roller, which comprises the following steps: firstly, adjusting a base to a required height, mounting a permanent magnet synchronous electric roller on the base and fixing a force arm, and then adjusting an angle enclosed by the permanent magnet synchronous electric roller to a required angle; after the adjustment is finished, connecting the permanent magnet synchronous electric roller with a loading device; after the connection is finished, correcting the deviation of the conveyer belt on the loading device and the permanent magnet synchronous electric roller to ensure that the central line of the conveyer belt for loading transmission is superposed with the central line of the roller; after the correction adjustment is finished, tensioning the conveying belt to a required tensioning force; starting the permanent magnet synchronous electric roller, starting the loading device after the permanent magnet synchronous electric roller runs to a rated speed, and adjusting the loading power to perform a performance test on the permanent magnet synchronous electric roller; after the test is finished, the permanent magnet synchronous electric roller is dismantled, and the installation underframe is folded. The method can be used for testing the loading performance of the electric rollers with different types and specifications, and improves the applicability of the electromagnetic roller test.
Description
Technical Field
The invention relates to the technical field of test devices, in particular to a method for testing the performance of an electric roller.
Background
The traditional built-in electric roller is generally composed of a motor, a speed reducing mechanism and a roller body, and has small power and maximum power not exceeding 110 kilowatts due to the limitation of volume and heat dissipation. The permanent magnet synchronous electric roller is an outer rotor type permanent magnet motor with simple structure, high reliability and high efficiency, can replace a motor, a reducer and a transmission roller in the traditional belt conveyor and is used for driving the belt conveyor. The permanent magnet synchronous electric roller is generally composed of a mandrel, a roller body, a stator, a rotor, an end cover and the like, is controlled and driven by a frequency converter, and has the maximum power of 630 kilowatts at present.
The belt conveyor is stopped due to the abnormal work of the permanent magnet synchronous electric roller, so that the normal operation of the belt conveyor is seriously influenced, and the requirements on the load operation stability and reliability of the permanent magnet synchronous electric roller are strict. The existing test method of the electric roller has the technical problem of low reliability.
Therefore, the problem to be solved in the field is that a method for testing the performance of the electric roller is urgently needed to improve the reliability of the loading performance test of the permanent magnet synchronous electric roller.
Disclosure of Invention
Aiming at the technical problem that the existing permanent magnet synchronous motorized pulley loading performance test method is low in reliability, the scheme aims to provide the motorized pulley performance test method, the method can be used for testing the loading performance of motorized pulleys of different models and specifications, the reliability of the electromagnetic pulley loading test is improved, and the problems in the prior art are well solved.
In order to achieve the above object, the present invention provides a method for testing performance of a motorized pulley, comprising:
firstly, adjusting a base to a required height, mounting a permanent magnet synchronous electric roller on the base and fixing a force arm, and then adjusting an angle enclosed by the permanent magnet synchronous electric roller to a required angle;
after the adjustment is finished, connecting the permanent magnet synchronous electric roller with a loading device;
after the connection is finished, correcting the deviation of the conveyer belt on the loading device and the permanent magnet synchronous electric roller to ensure that the central line of the conveyer belt for loading transmission is superposed with the central line of the roller;
after the correction adjustment is finished, tensioning the conveying belt to a required tensioning force;
starting the permanent magnet synchronous electric roller, starting the loading device after the permanent magnet synchronous electric roller runs to a rated speed, and adjusting the loading power to perform a performance test on the permanent magnet synchronous electric roller;
after the test is finished, the permanent magnet synchronous electric roller is dismantled, and the installation underframe is folded.
Further, the height of the base is adjusted through an adjusting component on the base.
Further, the position of the operation of the loading conveyer belt relative to the permanent magnet synchronous electric roller is detected through a sensor, and the rotation angle of the permanent magnet synchronous electric roller is corrected through the driving of the oil cylinder.
Furthermore, the tensioning roller is driven by the oil cylinder to move back and forth so as to adjust the tensioning force of the conveying belt.
Further, the motor adopts a direct torque control mode, and the loading torque is determined according to the loading power of the permanent magnet synchronous electric drum; and then starting the variable frequency loading device to adjust the loading power to the power required by the test.
Furthermore, the folding part of the base is driven to rotate through the oil cylinder to fold the underframe.
According to the method for testing the performance of the electric roller, provided by the invention, the loading performance of the electric rollers with different types and specifications can be tested, and the reliability of the loading test of the electromagnetic roller is improved.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a schematic flow chart of a test method for a loading performance test of the motorized pulley;
FIG. 2 is a schematic view of the whole structure of the apparatus for testing the loading performance of the motorized pulley;
fig. 3 is a schematic structural diagram of a roller loading part in the electric roller loading performance testing apparatus.
The following are labeled descriptions of the components:
100. the installation chassis 200, the loading roller 300, the electric roller 400, the tensioning roller 500, the redirection device 600, the amplitude variation redirection roller 700, the adjustment base 800, the folding device 900, the permanent magnet synchronous motor 110, the tensioning device guide rail 120, the amplitude variation device 130, the deviation rectification device 140, the tensioning device 150, the redirection roller base 510, the redirection roller 710, the guide rail 720, the cross beam 730, the pressing base 810 and the folding base.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Aiming at the technical problem that the existing permanent magnet synchronous motorized pulley loading performance test method is low in reliability, the scheme aims to provide the motorized pulley performance test method which can be used for testing the loading performance of motorized pulleys of different models and specifications and improves the applicability of the electromagnetic pulley test.
Referring to fig. 1, the method for testing the performance of the motorized pulley provided by the scheme includes:
firstly, adjusting a base to a required height, mounting a permanent magnet synchronous electric roller on the base and fixing a force arm, and then adjusting an angle enclosed by the permanent magnet synchronous electric roller to a required angle;
after the adjustment is finished, connecting the permanent magnet synchronous electric roller with a loading device;
after the connection is finished, correcting the deviation of the conveyer belt on the loading device and the permanent magnet synchronous electric roller to ensure that the central line of the conveyer belt for loading transmission is superposed with the central line of the roller;
after the correction adjustment is finished, tensioning the conveying belt to a required tensioning force;
starting the permanent magnet synchronous electric roller, starting the loading device after the permanent magnet synchronous electric roller runs to a rated speed, and adjusting the loading power to perform a performance test on the permanent magnet synchronous electric roller;
after the test is finished, the permanent magnet synchronous electric roller is dismantled, and the installation underframe is folded.
In order to better explain the provided test method, the electric roller performance test device is introduced in the scheme, and the electric roller performance test device can be started and tested by the test method.
Referring to fig. 2, the following is a detailed description of the structure of the device for testing the performance of the motorized pulley:
the motorized pulley performance test device comprises an installation underframe 100, a loading device 200, a motorized pulley 300, a tensioning device 140, a direction changing device 500, a deviation correcting device 130, a variable amplitude device 140, a folding device 800, a permanent magnet synchronous motor 900, a frequency conversion device (not shown in the figure) and a torque measuring device (not shown in the figure).
Wherein, the mounting underframe 100 is a mounting body, which is specifically a foldable high-strength welding base; the underframe is connected with the foundation in a pre-buried bolt mode; the mounting base frame 100 provides a high-strength device mounting base frame 100 for the entire test apparatus, and the tested piece and the components required for the loading test are mounted on the base frame 100.
Further, referring to fig. 3, the loading device 200 is disposed on the mounting base frame 100 and is cooperatively connected with the permanent magnet synchronous motor 900; the loading device 200 is a set of loading rollers, and loads the tested piece through the rolling of the loading rollers.
The loading roller 200 is directly connected with the permanent magnet synchronous motor 900, and meanwhile, the winding mode of the loading roller 200 is convenient for the installation of a tested piece, so that the requirement of loading wrap angles of tested electric rollers 300 with different diameters can be met.
The direction changing device 500 changes the running direction of the loading conveyer belt by increasing the wrap angle of the loading roller 200 and the motorized roller 300; which is disposed on the apparatus-mounting base frame 100, and is connected to the loading roller 200 through one end of the conveyor belt, and is connected to the motorized roller 300 through the other end thereof.
The direction changing device 500 in this embodiment employs a direction changing roller seat 150 and two direction changing rollers 510, wherein the direction changing roller seat is disposed on the installation base frame 100, and the two rollers 510 are disposed on the installation base frame 100 and connected by a conveyor belt.
The electric roller 300 is used for driving the variable frequency loading device to work; one end of the variable-amplitude direction-changing device is connected with the direction-changing device 500, and the other end of the variable-amplitude direction-changing device is connected with the variable-amplitude direction-changing drum 600.
The amplitude change direction-changing drum is used for increasing the wrap angle of the tested electric drum 300 during amplitude change and increasing the wrap angle of the tested electric drum 300 during growth work.
Since the tested permanent magnet synchronous motorized pulley 300 has a large specification, it is mounted on the equipment installation base frame 100 by providing the adjusting base 700.
Adjusting base 700 and installing on equipment fixing chassis 100, adopting the perpendicular two T type groove strips of arranging, can realize along cylinder axial and cylinder radial regulation, satisfy to different length, the different diameters is tried on electric cylinder 300's installation fastening.
The adjusting base 700 comprises a T-shaped groove body, a guide rail 710, a cross beam 720 and a pressing base 730; the T-shaped groove strips are arranged on the cross beam 720, the cross beam 720 can move on the guide rails 710, so that the installation requirements of the electric rollers 300 with different lengths are met, and the cross beam 720 is fastened on the pressing seat 730 after the position is adjusted; meanwhile, the T-shaped grooves are formed in the T-shaped groove strips, and the installation requirements of different electric roller bases in the radial direction can be met.
And the size of the installation space can be changed by the amplitude variation device 120 for convenient installation and lifting.
The amplitude variation device 120 is mounted on the equipment mounting underframe 100, is connected with the amplitude variation direction-changing drum 600, and is used for adjusting the position of the amplitude variation direction-changing drum 600 so as to mount tested electric drums 300 with different specifications and models.
In the scheme, the amplitude variation device 120 comprises an amplitude variation hydraulic cylinder and an amplitude variation rack; wherein, the variable amplitude frame is arranged on the installation underframe 100, the hydraulic cylinder is hinged with the equipment installation underframe 100, and the oil cylinder with smaller stroke can be adopted to form and realize the adjustment of larger installation space.
When the electric roller 300 is tested, the amplitude variation oil cylinder is in a contraction state, when the tested electric roller 300 is replaced, the amplitude variation device 120 can be opened, the amplitude variation device oil cylinder is started, and the oil cylinder extends out, and because the amplitude variation oil cylinder and the amplitude variation rack are both hinged with the installation underframe 100, the amplitude variation rack rotates around the hinged shaft under the left and right sides of the force of the oil cylinder, the upper part of the adjusting base 700 is left, the installation space is increased, and the installation of equipment is facilitated.
The variable frequency loading device is used for controlling the permanent magnet synchronous loading motor 900 so as to meet the loading requirements on different rotating speed torques. And starting the permanent magnet synchronous electric roller 300, and after the electric roller 300 runs to the rated speed, starting the variable frequency loading device and adjusting the loading power to the power required by the test.
When the electric roller 300 drives the loading roller 200 to operate through the conveyer belt, the loading roller 200 is connected with the loading and synchronous motor 900, the loading permanent magnet synchronous motor 900 adopts a direct torque control mode, and the loading torque is determined according to the loading power of the tested electric roller 300; and then starting the variable frequency loading device to adjust the loading power to the power required by the test.
Specifically, the measuring range of the pressure-variable force sensor used in the test and the tension of the test device are determined according to the torque of the tested drum 300 during the loading performance test of the permanent magnet synchronous motorized drum 300.
During the test, after the electric roller 300 normally operates, the loading permanent magnet synchronous motor 900 is started, and the loading permanent magnet synchronous motor 900 determines the loading torque according to the loading power of the tested permanent magnet synchronous electric roller 300 by adopting a direct torque control mode. In order to ensure the use safety of equipment, the loading torque control adopts a two-stage control mode, torque limitation and torque setting are set, the torque limitation is the maximum value of test torque, the torque is set as the set value of the test torque, only the torque set value is smaller than the torque limit value, the system is effective, and when the torque set value is larger than the torque limit value, the system can only be loaded to the torque limit value. In the running process of the system, the running position of the conveyer belt in the roller is always monitored, and the position of the conveyer belt is correspondingly adjusted, so that the conveyer belt is prevented from deviating, and the system runs normally. Once the position of the conveyor belt exceeds a set value, the system is configured to alarm or emergency stop.
The frequency conversion loading device in the scheme preferably adopts a four-quadrant frequency converter, electric energy generated by loading can be directly fed back to a power grid, consumption of electric energy in a loading test is reduced, and green environmental protection is realized.
The torque measuring device is connected with the tested electric roller 300 and is used for measuring the torque of the mandrel of the tested electric roller 300.
The moment measuring device comprises a strain type force sensor and a force arm rod;
the moment measurement is realized by adopting a strain type force sensor stress arm rod mode; force sensors with different measuring ranges and different force arm lengths are selected according to the output torque of the tested roller mandrel.
The arm lever is generally fixed with a stator mandrel of the permanent magnet motorized pulley 300 through keys, and the strain type force sensor is placed at one end of the arm lever, which is far away from the motorized pulley 300; when the motorized pulley 300 works, the cylinder rotates, and the force arm rod is pressed on the strain type force sensor by the reaction force of the cylinder, so that the reaction force at the position is measured; the output torque of the roller can be calculated through the stress of the strain sensor, the distance included angle between the stress position and the center of the roller and the like.
The tensioning device 140 is mounted on the equipment mounting base frame 100 and is connected with a tensioning roller 400; a tensioning roller 400 is mounted on the equipment mounting base frame 100 and is connected to the tensioning device 140 and cooperates to wind the load conveyor belt.
The tensioning device 140 adopts a hydraulic tensioning mode, can realize automatic tensioning of the test tensioning device 140, and comprises a tensioning roller, a tensioning oil cylinder and a tensioning guide rail; the tensioning roller can move back and forth along the tensioning guide rail, so that the tensioning force of the conveying belt is adjusted to meet the tensioning force required by the test of the motorized pulley 300.
Namely, the tension is automatically tensioned when the tension is smaller than the lowest tension, and is automatically released when the maximum tension is reached. Namely, the tensioning force is smaller than the lowest tensioning force, the starting is carried out automatically, the stopping is carried out automatically when the maximum tensioning force is reached, and the upper limit and the lower limit of the tensioning force can be set according to the requirement of the tested permanent magnet synchronous electric roller.
The deviation correcting device 130 is mounted on the apparatus mounting base frame 100 and connected to the tension roller 400 for adjusting the tension roller 400 to ensure the loading conveyor belt operates.
In the scheme, the deviation correcting device 130 comprises a connecting mechanism, an oil cylinder and an infrared sensor; and detecting the position of the loading conveyer belt relative to the roller by adopting an infrared sensor and correcting the rotation angle of the roller by driving the oil cylinder.
In normal operation, the conveyor belt is located at the middle position of the tensioning roller 400, but during operation, the conveyor belt may be off-tracking, and in order to ensure that the conveyor belt is located at the middle position and operates normally, the position of the conveyor belt needs to be detected and adjusted.
The position of the conveying belt is detected through the infrared sensor, the centralized control makes judgment according to the detected position of the conveying belt, and the inclination angle of the tensioning roller 400 is adjusted through the oil cylinder and the connecting mechanism, so that the position of the conveying belt is adjusted.
The folding device 810 is connected with the equipment installation underframe 100, adopts a link mechanism, adopts an oil cylinder mode for driving, adopts a reasonable mechanical operation track through a hinge mode, realizes the folding and the folding fixing of the equipment installation underframe 100, and reduces the occupied area of the equipment.
The folding device 810 consists of a folding oil cylinder and a folding base, and the folding oil cylinder is connected with the folding base in a driving way; the folding base is connected to the mounting chassis 100.
When the folding chassis 100 is folded, the fastening bolts of the folding base are taken off, the folding oil cylinder pushes out the foldable part of the mounting chassis 100 for a certain distance, the pin is used for connecting the folding base with the pin hole of the mounting chassis 100, then the folding oil cylinder extends out, the foldable part of the mounting chassis 100 rotates along the pin shaft part, and the folding of the mounting chassis 100 is completed.
After the folding is finished, bolts are inserted into bolt holes formed in the folding base and the folding part of the installation underframe 100, and the folding base is fixed; meanwhile, the oil cylinder adopts a self-locking oil cylinder, so that double fixation of the folding base is realized.
The working process of the scheme in use is illustrated below; it should be noted that the following description is only a specific application example of the present solution and is not intended to limit the present solution.
Firstly, mounting the permanent magnet synchronous electric roller 300 to be tested on an adjusting base 700, mounting a torque measuring device and fixing a force arm, and then adjusting the surrounding angle of the tested electric roller 300 to a required angle through a variable amplitude device; when the electric roller 300 is tested, the amplitude variation oil cylinder is in a contraction state, and the amplitude variation oil cylinder and the amplitude variation rack are hinged with the installation underframe 100, so that the amplitude variation rack rotates around the hinged shaft under the action of the oil cylinder force, the space above the adjusting base 700 is minimum, and the surrounding angle of the tested electric roller 300 is maximum.
After the adjustment is completed, the loading roller 200 and the permanent magnet synchronous variable frequency loading motor 900 are sequentially connected.
After the connection is completed, the deviation correcting device 130 operates to make the center line of the loading transmission conveyor belt coincide with the center line of the roller, and the axial direction of the tensioning roller 400 is perpendicular to the conveyor belt.
After the deviation correcting device 130 is adjusted, the tensioning device 140 works to tension the conveyor belt to a required tension.
And starting the permanent magnet synchronous electric roller 300, and after the permanent magnet synchronous electric roller runs to a rated speed, starting the variable frequency loading device and adjusting the loading power to the power required by the test.
After the test is finished, the tested permanent magnet synchronous electric roller 300 is detached, the folding device 700 is started, the installation underframe 100 is folded, and the floor area of the equipment is reduced.
The method for testing the loading performance of the permanent magnet synchronous electric roller loaded by the permanent magnet synchronous motor can test the loading performance of electric rollers of different types and specifications, and improves the reliability of the electromagnetic roller test.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A method for testing the performance of a motorized pulley, comprising:
firstly, adjusting a base to a required height, mounting a permanent magnet synchronous electric roller on the base and fixing a force arm, and then adjusting an angle enclosed by the permanent magnet synchronous electric roller to a required angle;
after the adjustment is finished, connecting the permanent magnet synchronous electric roller with a loading device;
after the connection is finished, correcting the deviation of the conveyer belt on the loading device and the permanent magnet synchronous electric roller to ensure that the central line of the conveyer belt for loading transmission is superposed with the central line of the roller;
after the correction adjustment is finished, tensioning the conveying belt to a required tensioning force;
starting the permanent magnet synchronous electric roller, starting the loading device after the permanent magnet synchronous electric roller runs to a rated speed, and adjusting the loading power to perform a performance test on the permanent magnet synchronous electric roller;
after the test is finished, the permanent magnet synchronous electric roller is dismantled, and the installation underframe is folded.
2. The method for testing the performance of the motorized pulley according to claim 1, wherein the base is adjusted in height by an adjusting assembly on the base.
3. The method for testing the performance of the motorized pulley according to claim 1, wherein the position of the loading conveyor belt relative to the permanent magnet synchronous motorized pulley is detected by a sensor and the rotation angle of the permanent magnet synchronous motorized pulley is corrected by the driving of the oil cylinder.
4. The method for testing the performance of the motorized pulley according to claim 1, wherein the tension of the conveyor belt is adjusted by driving the tension roller to move back and forth by the oil cylinder.
5. The method for testing the performance of the motorized pulley according to claim 1, wherein the motor adopts a direct torque control mode, and determines a loading torque according to the loading power of the permanent magnet synchronous motorized pulley; and then starting the variable frequency loading device to adjust the loading power to the power required by the test.
6. The method for testing the performance of the electric roller as claimed in claim 1, wherein the folding of the bottom frame is completed by driving the folding part of the base to rotate through the oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449850.6A CN114112364A (en) | 2021-11-30 | 2021-11-30 | Electric roller performance test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449850.6A CN114112364A (en) | 2021-11-30 | 2021-11-30 | Electric roller performance test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114112364A true CN114112364A (en) | 2022-03-01 |
Family
ID=80368832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111449850.6A Pending CN114112364A (en) | 2021-11-30 | 2021-11-30 | Electric roller performance test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114112364A (en) |
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2021
- 2021-11-30 CN CN202111449850.6A patent/CN114112364A/en active Pending
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