CN107247232B - Variable speed motor loading test equipment - Google Patents
Variable speed motor loading test equipment Download PDFInfo
- Publication number
- CN107247232B CN107247232B CN201710660825.XA CN201710660825A CN107247232B CN 107247232 B CN107247232 B CN 107247232B CN 201710660825 A CN201710660825 A CN 201710660825A CN 107247232 B CN107247232 B CN 107247232B
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 78
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000010998 test method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
Abstract
The invention relates to the technical field of test equipment, in particular to test equipment for loading a variable speed motor. The variable speed motor loading test equipment comprises a motor fixing assembly and a motor test assembly; the motor fixing assembly comprises a fixing bracket for fixing the motor to be tested; the motor testing assembly comprises a torsion sensor, one end of the torsion sensor is connected with a transmission assembly, the transmission assembly is connected with a motor to be tested, the other end of the transmission assembly is connected with a brake shaft, and the brake shaft is connected with a brake assembly. The variable speed motor loading test equipment provided by the invention is a test equipment, can be used for loading test for a long time, has longer service life compared with a dynamometer, is low in cost, and is simple in loading test method, suitable for endurance test and convenient for dismounting the motor to be tested.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to test equipment for loading a variable speed motor.
Background
Currently, a variable speed motor is generally completed by a dynamometer during loading test. The defects of the loading test by adopting a dynamometer are as follows:
1. because the dynamometer is test equipment, the dynamometer can cause frequent faults when being used as production equipment for a long time, and the service life of the equipment is greatly shortened;
2. the speed-changing motor is large and heavy due to the gearbox, the movement is difficult, the dynamometer is difficult to install due to the structure of the dynamometer, and the motor can be detached when the motor accessories are replaced, so that the dynamometer is very complicated;
3. the dynamometer has a longer period and is not suitable for repeated loading with higher frequency when carrying out loading test, so the test efficiency is extremely low;
4. the investment is more.
In a word, at present, the loading test of the variable speed motor by adopting the dynamometer has various defects, and the use requirement of people cannot be met.
Disclosure of Invention
The invention aims to provide variable speed motor loading test equipment so as to solve the technical problems in the prior art.
To achieve the purpose, the invention adopts the following technical scheme:
a variable speed motor loading test device comprises a motor fixing assembly and a motor test assembly;
the motor fixing assembly comprises a fixing bracket for fixing a motor to be tested;
the motor test assembly comprises a torsion sensor, one end of the torsion sensor is connected with a transmission assembly, the transmission assembly is connected with the motor to be tested, the other end of the torsion sensor is connected with a brake shaft, and the brake shaft is connected with a brake assembly.
Further, the fixed bolster includes preceding curb plate and the posterior lateral plate of relative setting, preceding curb plate with be provided with the motor fixed plate between the posterior lateral plate, the motor fixed plate is connected with the motor backup pad.
Further, two ends of the motor fixing plate are respectively connected with the front side plate and the rear side plate in a rotating way through rotating shafts, and the motor fixing plate can rotate for 90 degrees and comprises a vertical state and a horizontal state;
the front side plate and the rear side plate are respectively provided with a vertical pin and a parallel pin for limiting the vertical state and the horizontal state of the motor fixing plate.
Further, the transmission assembly comprises a transmission spline shaft, and the transmission spline shaft is connected with the torsion sensor through a transmission coupler;
one side of the transmission spline shaft, which is far away from the transmission coupling, is sleeved with a transmission spline sleeve, the transmission spline sleeve is connected with a rotation stopping block, the rotation stopping block is nested in the transmission spline sleeve through a rotation stopping pin, and the rotation stopping block is provided with a rotation stopping pin hole for butt joint of the motor to be tested.
Further, the transmission spline housing is provided with a shaft pin assembly for limiting the transmission spline housing and the transmission spline shaft.
Further, a threaded hole is formed in the transmission spline housing, the shaft pin assembly comprises a shaft pin housing, the shaft pin housing is connected with the threaded hole, and a shaft pin capable of moving the seat piston is arranged in the shaft pin housing in a penetrating manner;
the shaft pin is provided with an epitaxial stress step, the shaft pin is sleeved with a spring, the bottom of the spring is arranged on the stress step, the top of the spring is pressed by a shaft pin cover, and the top of the shaft pin is provided with a shaft pin handle;
and the transmission spline shaft is provided with a shaft pin hole matched with the shaft pin.
Further, a shaft sleeve buffer pad is arranged at the position of the tail end of the transmission spline shaft, which is positioned at the transmission coupling.
Further, the brake assembly comprises a brake disc, the brake disc is connected with the brake shaft, the brake disc is connected with a brake caliper, the brake caliper is connected with a brake cylinder and a brake pump, and the brake cylinder and the brake pump are fixed on the brake pump support.
Further, the transmission spline shaft is connected with a transmission shaft bearing seat through a rotating shaft, the torsion sensor is connected with a sensor seat, and the brake shaft is connected with a brake bearing seat through a bearing.
Further, the front side plate, the rear side plate, the transmission shaft bearing seat, the sensor seat, the brake bearing seat, the brake pump bracket and the brake caliper are all fixed on the bottom plate.
When the variable speed motor loading test equipment provided by the invention is used, the motor to be tested drives the torsion sensor to rotate through the transmission component, and the brake component brakes the other end of the torsion sensor; when the motor to be tested rotates, the brake is performed, the torsion of the motor to be tested and the braking force of the brake are concentrated on the torsion sensor, the torsion sensor collects data through computer software, the torque value is calculated in real time, and the brake component continuously strengthens the braking force to test the speed change point of the speed change motor.
The variable speed motor loading test equipment is a test equipment, can be used for loading test for a long time, has longer service life compared with a dynamometer, is low in cost, and is simple in loading test method, suitable for endurance test and convenient for dismounting the motor to be tested.
Drawings
FIG. 1 is a schematic diagram of a variable speed motor load test apparatus provided by the present invention;
FIG. 2 is a schematic diagram of the transmission assembly of the variable speed motor load test apparatus provided by the present invention;
fig. 3 is a cross-sectional view of a drive assembly of the variable speed motor loading test apparatus provided by the present invention.
In the figure:
1. a motor fixing plate; 2. a motor support plate; 3. a front side plate; 4. a rear side plate; 5. a rotation shaft; 6. a rotation shaft; 7. parallel pins; 8. a vertical pin; 9. a transmission assembly; 10. a transmission shaft bearing seat; 11. a drive shaft coupling; 12. a torsion sensor; 13. a brake cylinder; 14. a brake pump bracket; 15. a brake pump; 16. a brake disc; 17. a brake caliper; 18. a brake shaft bearing seat; 19. a brake shaft coupling; 20. a sensor mount; 21. a bottom plate; 22. a rotation stopping pin; 23. a rotation stop pin hole; 24. a rotation stop block; 25. a transmission spline shaft; 26. a sleeve cushion; 27. a shaft pin handle; 28. a shaft pin cover; 29. a shaft pin sleeve; 30. a spring; 31. a shaft pin; 32. a shaft pin hole; 33. a transmission spline housing; 34. a pin assembly; 35. and a pin assembly.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, a variable speed motor load test apparatus includes a motor mounting assembly and a motor test assembly;
the motor fixing assembly comprises a fixing bracket for fixing the motor to be tested;
the motor testing assembly comprises a torsion sensor 12, one end of the torsion sensor 12 is connected with a transmission assembly 9, the transmission assembly 9 is connected with a motor to be tested, the other end of the transmission assembly is connected with a brake shaft, the torsion sensor 12 is connected with the brake shaft through a brake shaft coupler 19, and the brake shaft is connected with a brake assembly.
The torque of the motor to be tested and the braking force generated by the braking component are measured through the torque sensor 12, the acquired information is transmitted to analysis equipment (supported by computer software), the torque value is calculated in real time, and the speed change point of the variable speed motor can be tested through the continuously reinforced braking force of the braking component so as to finish the loading test of the motor.
The fixed bolster is including preceding curb plate 3 and the posterior lateral plate 4 that set up relatively, is provided with motor fixing plate 1 between preceding curb plate 3 and the posterior lateral plate 4, and motor fixing plate 1 is connected with motor support plate 2.
In the testing process, the loading testing equipment is provided with the fixing support for installing the motor to be tested, the fixing support is provided with the motor support plate 2, and the motor to be tested is installed on the motor support plate 2 during installation.
Wherein, preferably, the two ends of the motor fixing plate 1 are respectively connected with the front side plate 3 and the rear side plate 4 in a rotating way through rotating shafts 5 and 6, and the motor fixing plate 1 can rotate for 90 degrees to comprise a vertical state and a horizontal state;
the front side plate 3 and the rear side plate 4 are respectively provided with a vertical pin 8 and a parallel pin 7 for limiting the vertical state and the horizontal state of the motor fixing plate 1.
The motor fixing plate 1 can be switched between a horizontal state and a vertical state, after corresponding switching, the motor fixing plate 1 is fixed through the vertical pin 8 or the parallel pin 7, and the height of the fixing support can be adjusted through switching of the two states, so that the motor fixing plate is suitable for motors with different sizes.
The transmission assembly 9 comprises a transmission spline shaft 25, and the transmission spline shaft 25 is connected with the torque sensor 12 through a transmission coupler 11;
one side of the transmission spline shaft 25, which is far away from the transmission coupler 11, is sleeved with a transmission spline sleeve 33, the transmission spline sleeve 33 is connected with a rotation stopping block 24, the rotation stopping block 24 is nested in the transmission spline sleeve 33 through a rotation stopping pin 22, and the rotation stopping block 24 is provided with a rotation stopping pin hole 23 for butting a motor to be tested.
When in use, the transmission spline shaft 25 is connected with the torque sensor 12, the transmission spline housing 33 is connected with a motor to be tested, the output shaft of the motor to be tested is connected with a pin, and the pin is inserted into the rotation stop pin hole 23. The transmission spline shaft 25 is fixedly connected with the transmission spline housing 33, so that the torsion of the motor to be tested can be transmitted to the torsion sensor 12.
Preferably, the driving spline housing 33 is provided with shaft pin assemblies 34 and 35 for limiting the driving spline housing 33 and the driving spline shaft 25. The transmission spline housing 33 is provided with a threaded hole, the shaft pin assemblies 34 and 35 comprise a shaft pin housing 29, the shaft pin housing 29 is connected with the threaded hole, and a shaft pin 31 capable of moving the seat piston is arranged in the shaft pin housing 29 in a penetrating manner;
the shaft pin 31 is provided with an epitaxial stress step, the shaft pin 31 is sleeved with a spring 30, the bottom of the spring 30 is arranged on the stress step, the top of the spring is pressed by the shaft pin cover 28, and the top of the shaft pin 31 is provided with a shaft pin handle 27;
the spline shaft 25 is provided with a shaft pin hole 32 which is matched with the shaft pin 31.
The spline shaft 25 and the spline housing 33 are fixedly connected by shaft pin assemblies 34, 35, wherein the two shaft pin assemblies 34, 35 may be arranged, for example, in a symmetrical arrangement. When the transmission spline housing 33 slides on the transmission spline shaft 25 in use, when the transmission spline housing slides to the shaft pin hole 32, the spring 30 always has acting force towards the transmission spline shaft 25 direction on the shaft pin 31, so that the spring 30 can press the shaft pin 31 into the shaft pin hole 32 downwards at the moment, the fixation between the transmission spline housing 33 and the transmission spline shaft 25 is completed, and at the moment, the transmission spline shaft 25 and the transmission spline housing 33 cannot move relatively, so that the transmission spline housing can be normally used. When the position between the two needs to be changed, the shaft pin handle 27 is manually pulled outwards, the shaft pin 31 is pulled out from the shaft pin hole 32, and the fixation is released.
The end of the drive spline shaft 25 is provided with a sleeve cushion 26 at the drive coupling 11. The sleeve cushion 26 can effectively cushion the impact of the driving spline sleeve 33.
Preferably, the brake assembly comprises a brake disc 16, the brake disc 16 is connected with a brake shaft, the brake disc 16 is connected with a brake caliper 17, the brake caliper 17 is connected with a brake cylinder 13 and a brake pump 15, and the brake cylinder 13 and the brake pump 15 are fixed on a brake pump bracket 14.
In operation, when the brake cylinder 13 applies pressure to the brake pump 15, the brake caliper 17 acts on the brake disc 16, causing the brake disc 16 to generate resistance and thus braking force.
The transmission spline shaft 25 is connected with a transmission shaft bearing seat 10 through a rotating shaft, the torque sensor 12 is connected with a sensor seat 20, and the brake shaft is connected with a brake shaft bearing seat 18 through a bearing. The front side plate 3, the rear side plate 4, the transmission shaft bearing seat 10, the sensor seat 20, the brake shaft bearing seat 18, the brake pump bracket 14 and the brake caliper 17 are all fixed on the bottom plate 21.
The individual components are provided on the base plate 21 in a unitary structure, e.g., pin holes are provided in the individual components, and the components are fastened to the base plate 21 by bolts. When the motor to be tested is used each time, only the motor to be tested is required to be replaced, the integrity of the equipment is improved, and the operation is simpler and quicker during use.
When the motor to be tested is specifically used, the motor to be tested is firstly installed on the fixed support, for example, the motor fixing plate 1 is vertically arranged, the motor to be tested is arranged on the motor supporting plate 2, the U-shaped slot is formed in the motor fixing plate 1, and the tail part of the motor to be tested is fixed in the U-shaped slot. The motor to be tested is then connected to the transmission assembly 9.
The motor to be tested rotates after being electrified, at the moment, the torsion sensor 12 and the brake disc 16 rotate simultaneously, the brake assembly is operated to generate resistance to the brake disc 16, the resistance is transmitted to the torsion sensor 12, the force is the loading force born by the motor, and the brake cylinder 13 slowly applies force to test the speed change point torque value of the tested speed change motor.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. The variable speed motor loading test equipment is characterized by comprising a motor fixing assembly and a motor test assembly;
the motor fixing assembly comprises a fixing bracket for fixing a motor to be tested;
the motor testing assembly comprises a torsion sensor (12), one end of the torsion sensor (12) is connected with a transmission assembly (9), the transmission assembly (9) is connected with the motor to be tested, the other end of the torsion sensor (12) is connected with a brake shaft, the brake shaft is connected with a brake assembly, the torsion sensor (12) can measure the torsion of the motor to be tested and the braking force generated by the brake assembly, collected information is transmitted to analysis equipment, a torque value is calculated in real time, the braking force is continuously enhanced by the brake assembly, and a speed change point of the motor to be tested can be tested;
the transmission assembly (9) comprises a transmission spline shaft (25), and the transmission spline shaft (25) is connected with the torsion sensor (12) through a transmission coupler (11);
one side of the transmission spline shaft (25) far away from the transmission coupling (11) is sleeved with a transmission spline sleeve (33), the transmission spline sleeve (33) is connected with a rotation stopping block (24), the rotation stopping block (24) is nested in the transmission spline sleeve (33) through a rotation stopping pin (22), and the rotation stopping block (24) is provided with a rotation stopping pin hole (23) for butt joint of a motor to be tested.
2. The variable speed motor loading test device according to claim 1, wherein the fixing bracket comprises a front side plate (3) and a rear side plate (4) which are oppositely arranged, a motor fixing plate (1) is arranged between the front side plate (3) and the rear side plate (4), and the motor fixing plate (1) is connected with a motor supporting plate (2).
3. The variable speed motor loading test device according to claim 2, wherein both ends of the motor fixing plate (1) are respectively rotatably connected with the front side plate (3) and the rear side plate (4) through rotation shafts (5, 6), and the motor fixing plate (1) can be rotated by 90 ° including a vertical state and a horizontal state;
the front side plate (3) and the rear side plate (4) are respectively provided with a vertical pin (8) and a parallel pin (7) for limiting the vertical state and the horizontal state of the motor fixing plate (1).
4. The variable speed motor loading test device according to claim 1, wherein the transmission spline housing (33) is provided with shaft pin assemblies (34, 35) for limiting the transmission spline housing (33) and the transmission spline shaft (25).
5. The variable speed motor loading test device according to claim 4, wherein the transmission spline housing (33) is provided with a threaded hole, the shaft pin assemblies (34, 35) comprise shaft pin housings (29), the shaft pin housings (29) are connected with the threaded hole, and a shaft pin (31) capable of moving a seat piston is arranged in the shaft pin housings (29) in a penetrating manner;
an epitaxial stress step is arranged on the shaft pin (31), a spring (30) is sleeved on the shaft pin (31), the bottom of the spring (30) is arranged on the stress step, the top of the spring is pressed by a shaft pin cover (28), and a shaft pin handle (27) is arranged at the top of the shaft pin (31);
and the transmission spline shaft (25) is provided with a shaft pin hole (32) matched with the shaft pin (31).
6. Variable speed motor loading test equipment according to claim 5, characterized in that the end of the drive spline shaft (25) is provided with a sleeve cushion (26) at the drive coupling (11).
7. The variable speed motor loading test device according to claim 2, wherein the brake assembly comprises a brake disc (16), the brake disc (16) is connected with the brake shaft, the brake disc (16) is connected with a brake caliper (17), the brake caliper (17) is connected with a brake cylinder (13) and a brake pump (15), and the brake cylinder (13) and the brake pump (15) are fixed on a brake pump bracket (14).
8. The variable speed motor loading test device according to claim 7, wherein the transmission spline shaft (25) is connected with a transmission shaft bearing seat (10) through a rotating shaft, the torque sensor (12) is connected with a sensor seat (20), and the brake shaft is connected with a brake bearing seat (18) through a bearing.
9. The variable speed motor loading test device according to claim 8, wherein the front side plate (3), the rear side plate (4), the drive shaft bearing housing (10), the sensor housing (20), the brake bearing housing (18), the brake pump bracket (14), the brake caliper (17) are all fixed on a bottom plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660825.XA CN107247232B (en) | 2017-08-04 | 2017-08-04 | Variable speed motor loading test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660825.XA CN107247232B (en) | 2017-08-04 | 2017-08-04 | Variable speed motor loading test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN107247232A CN107247232A (en) | 2017-10-13 |
| CN107247232B true CN107247232B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710660825.XA Active CN107247232B (en) | 2017-08-04 | 2017-08-04 | Variable speed motor loading test equipment |
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| CN (1) | CN107247232B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406842B (en) * | 2018-11-30 | 2024-01-02 | 东风电动车辆股份有限公司 | Motor test bench |
| CN112414598A (en) * | 2020-10-20 | 2021-02-26 | 南京康尼机电股份有限公司 | Motor loading test device and test method |
| CN113419171B (en) * | 2021-06-15 | 2023-03-24 | 金华卓远实业有限公司 | Durability testing machine for centrally-mounted motor |
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