CN114136521A - Device and method for testing push-pull force and stroke of linear driving motor - Google Patents
Device and method for testing push-pull force and stroke of linear driving motor Download PDFInfo
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- CN114136521A CN114136521A CN202111426006.1A CN202111426006A CN114136521A CN 114136521 A CN114136521 A CN 114136521A CN 202111426006 A CN202111426006 A CN 202111426006A CN 114136521 A CN114136521 A CN 114136521A
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims abstract description 33
- 239000006247 magnetic powder Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention discloses a device and a method for testing push-pull force and stroke of a linear driving motor, which comprises a base, and a linear motor support, a linear motion system support, a stroke measuring device and a torque measuring device which are sequentially arranged on the base along the length direction of the base, wherein the linear motor support is used for supporting the linear motor, a guide shaft is slidably connected in the linear motion system support, one end of the guide shaft is connected with an output shaft of the linear motor, the other end of the guide shaft is connected with one end of the stroke measuring device through a pressure sensor, the other end of the stroke measuring device is connected with the torque measuring device, and the linear motor support, the guide shaft, the pressure sensor and the torque measuring device are coaxial, the operation is simple, the testing efficiency is improved, the product reject ratio is reduced, the delivery speed is increased, and the enterprise competitiveness is improved.
Description
Technical Field
The invention belongs to the technical field of linear driving motors, and particularly belongs to a device and a method for testing push-pull force and stroke of a linear driving motor.
Background
The linear driving motor is mainly used in an electric control system with stroke control and push/pull reciprocating motion. The linear driving motor push/pull force and the stroke determine the opening and closing of the valve, and the opening and closing requirements of the valve can be met only by pushing the valve to a specified distance with enough force, so that the precision of the push/pull force and the stroke of the linear driving motor is particularly important, and the current problems are as follows:
(1) at present, no special linear motor push/pull device is tested.
(2) Because the linear electric motor operating mode is for taking load straight reciprocating motion, and the equipment of current dynamometry is mostly the torque test, and the motor is fixed motionless with dynamometer machine coaxial coupling, and the load is applyed to the motor shaft, and the test can't be directly connected with the dynamometer machine to the linear motion motor.
(3) The traditional test method of the linear motor is carried out by hanging weights by using steel wire ropes, and has poor practicability, small test thrust range, low precision and unsafety in the test.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device and a method for testing the push-pull force and the stroke of a linear driving motor, which realize the accurate reliability of the test of the push-pull force and the stroke of the linear driving motor.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a linear drive motor push-pull power and stroke testing arrangement, includes the base and sets gradually linear electric motor support, linear motion system support, stroke measuring device and the torque measuring device on the base along base length direction, wherein, linear electric motor support is used for supporting linear electric motor, sliding connection has the guiding axle in the linear motion system support, the one end and the linear electric motor output shaft of guiding axle, the other end passes through pressure sensor and is connected with stroke measuring device's one end, stroke measuring device's the other end is connected with the torque measuring device, linear electric motor support, guiding axle, pressure sensor and torque measuring device axiality.
Further, stroke measuring device includes rack and grating chi, wherein, rack one end is connected with pressure sensor through the third connector, tooth's socket on the rack with torque measuring device meshes, grating chi sets up at the rack front end, grating chi's reading head sets up on the third connector, grating chi's blade sets up on torque measuring device surface.
Furthermore, the grating ruler is connected with a grating ruler digital display device and used for displaying displacement data of the movement of the grating ruler to represent the stroke of the linear motor.
Furthermore, the torque measuring device comprises a braking device and a brake, a connecting end of the braking device is connected with the brake through a coupler and used for outputting torque, and small teeth on a braking end of the braking device are meshed with the stroke measuring device.
Further, the brake is a magnetic powder brake.
Further, a roller is arranged in the linear motion system support, and the guide shaft slides in the linear motion system support through the roller.
Furthermore, a sliding groove is formed in the base, and the linear motor support is connected to the sliding groove in a sliding mode.
Furthermore, the pressure sensor is connected with a pressure sensor digital display device and used for reading the actual load of the linear motor.
The invention also provides a method for testing the push-pull force and the stroke of the linear driving motor, which is used for testing and comprises the following specific steps:
s1, installing a linear motor on a linear motor support, and adjusting the coaxiality of an output shaft of the linear motor, a guide shaft, a pressure sensor and a torque measuring device;
s2, the linear motor starts to run, and the load of the torque measuring device on the linear motor is adjusted to enable the load measured by the pressure sensor to be within a required range;
s3 when the linear motor is in thrust state, the output shaft of the linear motor pushes the guide shaft to slide in the linear motion system bracket, the guide shaft drives the pressure sensor and the torque measuring device to move towards the direction pushed by the linear motor, and the stroke measuring device obtains the stroke of the linear motor.
Further, when the linear motor is in a pulling force state, the output shaft of the linear motor pulls the guide shaft to slide in the linear motion system support, the guide shaft drives the first driving pressure sensor and the torque measuring device to move towards the pulling direction of the linear motor, and the stroke measuring device obtains the stroke of the linear motor.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention provides a device for testing push-pull force and stroke of a linear driving motor, wherein a torque measuring device is matched with a pressure sensor to accurately obtain the bearing capacity of the linear motor, the linear motor is subjected to push/pull force testing under the required bearing capacity, through the coaxiality arrangement of a linear motor support, a guide shaft, the pressure sensor and the torque measuring device, the same-direction transmission of push/pull force of the linear motor is realized, the phenomenon that different shafts cause tension and test errors is avoided, the stroke of the linear motor is accurately tested through the stroke measuring device, the working strength is reduced, the operation is simple and convenient, the labor cost is reduced, the operation cost is reduced, the test efficiency and the test precision are improved, meanwhile, the test period can be greatly shortened, the product reject ratio is reduced, the economic benefit is improved, the delivery speed is increased, and the enterprise competitiveness is improved.
Further, the equipment of taking in this application all has idle equipment certainly, only need purchase grating chi can, the idle resource of dish activity, furthest reduces and builds test platform capital cost.
Drawings
FIG. 1 is a schematic diagram of an automatic testing device for push/pull force and stroke of a linear driving motor;
FIG. 2 is a detailed view of the torque measuring device;
in the drawings: 1-a base, 2-a linear motor support, 3-a linear motion system support, 31-a guide shaft, 4-a stroke measuring device, 5-a first connector, 6-a second connector, 7-a third connector, 8-a rack, 9-a grating ruler, 10-a torque measuring device, 11-a brake and 12-a brake device; 13-pressure sensor.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-2, the present invention provides a device for testing push-pull force and stroke of a linear driving motor, comprising a base 1, and a linear motor support 2, a linear motion system support 3, a stroke measuring device 4 and a torque measuring device 10 sequentially disposed on the base 1 along a length direction of the base 1, wherein the linear motor support 2 is used for supporting the linear motor and ensuring coaxiality of the linear motor with the linear motion system support 3 and the stroke measuring device 4, a guide shaft 31 is slidably connected in the linear motion system support 3, one end of the guide shaft 31 is connected with an output shaft of the motor through a first connector 5, the other end of the guide shaft 31 is connected with one end of a pressure sensor 13 through a second connector 6, the other end of the pressure sensor 13 is connected with the stroke measuring device 4 through a third connector 7, the stroke measuring device 4 is connected with the torque measuring device 10, the pressure sensor 13 is used for measuring the torque applied to the linear motor by the torque measuring device 10;
the stroke measuring device 4 comprises a rack 8 and a grating ruler 9, wherein one end of the rack 8 is connected with a pressure sensor 13 through a third connector 7, a trapezoidal tooth groove on the rack 8 is meshed with the torque measuring device 10 and is used for converting the linear motion of the linear motor into circular motion, the grating ruler 9 is arranged at the front end of the rack 8 and is used for accurately measuring the displacement stroke of the advancing displacement and the retracting state of the linear motor, a reading head of the grating ruler 9 is arranged on the third connector 7, and a ruler body of the grating ruler 9 is arranged on the surface of the torque measuring device 10;
the torque measuring device 10 comprises a braking device 12 and a brake 11, wherein small teeth at the braking end of the braking device 12 are meshed with trapezoidal tooth grooves on the rack 8, and the connecting end of the braking device 12 is connected with the brake 11 through a coupler for outputting torque.
Preferably, the brake 11 is a magnetic particle brake.
The programmable power supply supplies power to the brake 11, the brake 11 outputs corresponding torque, the torque output by the brake 11 is transmitted to the linear motor through the brake device 12, and the pressure sensor 13 measures the torque applied to the linear motor by the brake 11.
Preferably, a roller is arranged inside the linear motion system support 3, the guide shaft 31 slides in the linear motion system support 3 through the roller, and the linear motion system support 3 ensures that the guide shaft 31 is coaxially connected with the motor and the pressure sensor 13.
Preferably, the base 1 is provided with a sliding groove, and the linear motor support 2 is slidably connected in the sliding groove and used for adjusting the distance between the linear motor support 2 and the linear motion system support 3.
Preferably, the output shaft of the linear motor, the guide shaft 31, the first connector 5, the second connector 6, the third connector 7, the pressure sensor 13 and the rack 8 maintain coaxiality, the coaxiality of all the components in the testing device is ensured for the same-direction transmission of force, and poor force caused by different shafts and testing errors are avoided.
Preferably, the grating scale 9 is connected with the grating scale digital display device for displaying displacement data of the movement of the grating scale 9 to represent the stroke of the linear motor.
Preferably, the pressure sensor 13 is connected to a pressure sensor digital display device for reading the actual load. The pressure sensor reads the torque applied to the end of the linear motor by the magnetic powder brake, for example, the motor is required to bear 40N of force, the magnetic powder brake is electrified, the pressure sensor 13 displays 30N of force, the stress of the linear motor at the moment is 30N smaller than a required value, the voltage is increased at the moment, the output torque of the magnetic powder brake is increased, and when the pressure sensor 13 displays 40N of force, the input voltage of the magnetic powder brake at the moment is kept for measurement.
Preferably, the grating ruler digital display device and the pressure sensor digital display device are connected with an industrial personal computer.
When the digital display device is tested, the method specifically comprises the following steps:
1. a linear motor is arranged on the linear motor support 2, and the coaxiality of the linear motor, the guide shaft 31, the first connector 5, the second connector 6, the third connector 7, the pressure sensor 13 and the rack 8 is adjusted;
2. electrifying the linear motor, starting the linear motor to run, and adjusting the load of the magnetic powder brake to ensure that the load measured by the pressure sensor 13 is in a required range;
3. when the linear motor is in a thrust state, the output shaft of the linear motor pushes the guide shaft 31 to slide in the linear motion system support 3, the guide shaft 31 drives the second connector 6, the pressure sensor 13, the third connector 7 and the rack 8 to simultaneously move towards the pushing direction, and when the stroke of the linear motor is finished, the reading of the grating pool 9 is read, namely the stroke of the linear motor;
4. when the linear motor is in a pulling force state, the output shaft of the linear motor pulls the guide shaft 31 to slide in the linear motion system support 3, the guide shaft 31 drives the second connector 6, the pressure sensor 13, the third connector 7 and the rack 8 to simultaneously move towards the pulling direction, and when the stroke of the linear motor is finished, the reading of the grating pool 9 is the stroke of the linear motor.
Claims (10)
1. A testing device for push-pull force and stroke of a linear driving motor is characterized by comprising a base (1), a linear motor support (2), a linear motion system support (3), a stroke measuring device (4) and a torque measuring device (10), wherein the linear motor support (2), the linear motion system support (3), the stroke measuring device (4) and the torque measuring device (10) are sequentially arranged on the base (1) along the length direction of the base (1), wherein the linear motor support (2) is used for supporting a linear motor, a guide shaft (31) is connected in the linear motion system support (3) in a sliding way, one end of the guide shaft (31) is connected with an output shaft of the linear motor, the other end of the guide shaft is connected with one end of the stroke measuring device (4) through a pressure sensor (13), the other end of the stroke measuring device (4) is connected with a torque measuring device (10), the linear motor support (2), the guide shaft (31), the pressure sensor (13) and the torque measuring device (10) are coaxial.
2. The device for testing the push-pull force and the stroke of the linear driving motor according to claim 1, wherein the stroke measuring device (4) comprises a rack (8) and a grating ruler (9), wherein one end of the rack (8) is connected with the pressure sensor (13) through a third connector (7), a tooth groove on the rack (8) is meshed with the torque measuring device (10), the grating ruler (9) is arranged at the front end of the rack (8), a reading head of the grating ruler (9) is arranged on the third connector (7), and a ruler body of the grating ruler (9) is arranged on the surface of the torque measuring device (10).
3. The device for testing the push-pull force and the stroke of the linear driving motor according to claim 2, wherein the grating ruler (9) is connected with the grating ruler digital display device for displaying the displacement data of the movement of the grating ruler (9) to represent the stroke of the linear motor.
4. The testing device for the push-pull force and the stroke of the linear driving motor according to claim 1, wherein the torque measuring device (10) comprises a braking device (12) and a brake (11), a connecting end of the braking device (12) is connected with the brake (11) through a coupler for outputting torque, and small teeth on a braking end of the braking device (12) are meshed with the stroke measuring device (4).
5. The linear drive motor push-pull force and stroke testing device according to claim 4, wherein the brake (11) is a magnetic powder brake.
6. The linear drive motor push-pull force and stroke testing device as claimed in claim 1, wherein the linear motion system support (3) is internally provided with a roller, and the guide shaft (31) slides in the linear motion system support (3) through the roller.
7. The linear driving motor push-pull force and stroke testing device as claimed in claim 1, wherein the base (1) is provided with a sliding groove, and the linear motor support (2) is slidably connected in the sliding groove.
8. The linear driving motor push-pull force and stroke testing device as claimed in claim 1, wherein the pressure sensor (13) is connected with a pressure sensor digital display device for reading the actual load of the linear motor.
9. A method for testing push-pull force and travel of a linear driving motor, which is characterized by using the testing device of any one of claims 1 to 8 for testing, and comprises the following specific steps:
s1, installing a linear motor on the linear motor support (2), and adjusting the coaxiality of the output shaft of the linear motor, the guide shaft (31), the pressure sensor (13) and the torque measuring device (10);
s2, the linear motor starts to run, the load of the torque measuring device (10) on the linear motor is adjusted, and the load measured by the pressure sensor (13) is in a required range;
s3, when the linear motor is in a thrust state, the output shaft of the linear motor pushes the guide shaft (31) to slide in the linear motion system support (3), the guide shaft (31) drives the pressure sensor (13) and the torque measuring device (10) to move towards the pushing direction of the linear motor, and the stroke measuring device (4) acquires the stroke of the linear motor.
10. The method for testing the push-pull force and the stroke of the linear driving motor according to claim 5, wherein when the linear motor is in a pulling state, the output shaft of the linear motor pulls the guide shaft (31) to slide in the linear motion system bracket (3), the guide shaft (31) drives the first driving pressure sensor (13) and the torque measuring device (10) to move towards the direction of pulling of the linear motor simultaneously, and the stroke measuring device (4) acquires the stroke of the linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426006.1A CN114136521A (en) | 2021-11-26 | 2021-11-26 | Device and method for testing push-pull force and stroke of linear driving motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111426006.1A CN114136521A (en) | 2021-11-26 | 2021-11-26 | Device and method for testing push-pull force and stroke of linear driving motor |
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| CN114136521A true CN114136521A (en) | 2022-03-04 |
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| CN202111426006.1A Pending CN114136521A (en) | 2021-11-26 | 2021-11-26 | Device and method for testing push-pull force and stroke of linear driving motor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692118A (en) * | 2009-10-19 | 2010-04-07 | 上海电机学院 | Testing device and testing method of linear motor |
| CN101980037A (en) * | 2010-11-08 | 2011-02-23 | 清华大学 | Comprehensive test device for linear motor motion system |
| CN203133252U (en) * | 2013-03-25 | 2013-08-14 | 北京经纬恒润科技有限公司 | Linear stepping motor test device |
| CN106324499A (en) * | 2016-08-02 | 2017-01-11 | 东南大学 | Dynamic performance test device for linear rotating motor and testing method |
| CN206038862U (en) * | 2016-09-09 | 2017-03-22 | 西安科技大学 | Electric vehicle motor capability test system |
| CN109029814A (en) * | 2018-07-27 | 2018-12-18 | 重庆东登科技有限公司 | Thrust cylinder body test macro and test method |
-
2021
- 2021-11-26 CN CN202111426006.1A patent/CN114136521A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692118A (en) * | 2009-10-19 | 2010-04-07 | 上海电机学院 | Testing device and testing method of linear motor |
| CN101980037A (en) * | 2010-11-08 | 2011-02-23 | 清华大学 | Comprehensive test device for linear motor motion system |
| CN203133252U (en) * | 2013-03-25 | 2013-08-14 | 北京经纬恒润科技有限公司 | Linear stepping motor test device |
| CN106324499A (en) * | 2016-08-02 | 2017-01-11 | 东南大学 | Dynamic performance test device for linear rotating motor and testing method |
| CN206038862U (en) * | 2016-09-09 | 2017-03-22 | 西安科技大学 | Electric vehicle motor capability test system |
| CN109029814A (en) * | 2018-07-27 | 2018-12-18 | 重庆东登科技有限公司 | Thrust cylinder body test macro and test method |
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Address after: 715000 No. 36, Shanglinyuan 4th Road, high tech Zone, Xi'an, Shaanxi Applicant after: Xi'an micromotor Research Institute Co.,Ltd. Address before: 715000 No. 36, Shanglinyuan 4th Road, high tech Zone, Xi'an, Shaanxi Applicant before: XI'AN MICROMOTOR Research Institute |
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