CN215894859U - Current-torque characteristic testing device for limited-angle torque motor - Google Patents
Current-torque characteristic testing device for limited-angle torque motor Download PDFInfo
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- CN215894859U CN215894859U CN202121127224.0U CN202121127224U CN215894859U CN 215894859 U CN215894859 U CN 215894859U CN 202121127224 U CN202121127224 U CN 202121127224U CN 215894859 U CN215894859 U CN 215894859U
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Abstract
The utility model discloses a current-torque characteristic testing device of a limited corner torque motor, which comprises the limited corner torque motor, a connector, a pulley disc, a self-angle machine, weights, a base and a fixing plate, wherein the connector is connected with the pulley disc; two vertical fixing plates are arranged on the base and are parallel to each other; an output shaft of the limited rotation angle torque motor penetrates through the fixing plate on one side, an output shaft of the self-angle machine penetrates through the fixing plate on the other side, the output shaft of the limited rotation angle torque motor and the output shaft of the self-angle machine are fixedly connected through a connector, a pulley disc is arranged on the connector, a wire is wound on the pulley disc, and a weight is arranged at one end of the wire; the limited corner torque motor is connected with a direct current power supply to provide current, and the synchro is connected with an angular position display instrument. The device has a simple structure, and can realize high-precision test of the current-torque characteristic of the limited-angle torque motor.
Description
Technical Field
The utility model belongs to the technical field of motor performance testing, and particularly belongs to a device for testing the current-torque characteristics of a limited-angle torque motor.
Background
The limited corner torque motor realizes accurate position location in a limited angle range and can directly drive a load to realize quick forward/reverse rotation. The servo-actuated device is widely applied to position servo-control systems of limited rotation angle driving devices such as aviation servo valves, satellite antennas, missile steering engines, robot joints, laser reflectors and the like. The special limited corner torque motor for the national key project is arranged on the pressure regulating/shutoff valve and used for regulating the pressure entering the control cavity.
The traditional test method is that a pointer is arranged on a motor shaft, the motor is not electrified, and a line is drawn at the position of the pointer corresponding to a stator to be used as a starting zero point. The motor gives current, the motor rotating shaft deflects by a certain angle, the shaft drives the pointer to deflect, the pointer is marked at the position corresponding to the stator, the weight is hung at the motor rotating shaft, the pointer reaches the position corresponding to the marked line by continuously adjusting the weight, and the force at the moment is the torque value under the corresponding current. The deflection angle under each current point is very small, the width of the marking pen is 0.5 degrees, and the error of a scriber for observing the corner position is large, and the precision is low.
In summary, the conventional torque testing method cannot meet the requirement on the testing precision, has the problems of large error and low precision, and cannot be applied to the high-precision testing.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a device for testing the current-torque characteristics of a limited-angle torque motor, which is simple in structure and can realize high-precision testing of the current-torque characteristics of the limited-angle torque motor.
In order to achieve the purpose, the utility model provides the following technical scheme:
a current-torque characteristic testing device for a limited angle torque motor comprises the limited angle torque motor, a connector, a pulley disc, a self-angle-adjusting machine, weights, a base and a fixing plate;
the base is provided with two vertical fixing plates which are parallel to each other; the output shaft of the limited corner torque motor penetrates through the fixing plate on one side, the output shaft of the self-angle machine penetrates through the fixing plate on the other side, the output shaft of the limited corner torque motor and the output shaft of the self-angle machine are fixedly connected through a connector, a pulley disc is arranged on the connector, a wire is wound on the pulley disc, and a weight is arranged at one end of the wire;
the limited corner torque motor is connected with a direct current power supply to provide current, and the synchro is connected with an angular position display instrument.
Preferably, the synchro is a single-peak precision 3-minute synchro, and the angular position display has a precision of 0.001 °.
Preferably, an ammeter is arranged between the limited angle torque motor and the direct current power supply.
Preferably, the DC power supply provides 50mA, 100mA, 150mA, 200mA or 250mA of current.
Preferably, the connector is a coupler, and two ends of the coupler are respectively sleeved on an output shaft of the limited-angle torque motor and an output shaft of the self-angle machine.
Preferably, an integrated structure is formed between the connector and the pulley plate.
Preferably, a fixed block is arranged at the connecting part of the fixed plate and the base, the fixed block is of an L-shaped structure, one end of the L-shaped fixed block is fixed on the fixed plate, and the other end of the L-shaped fixed block is fixed on the base.
Preferably, the fixing plate is fixed on the base by welding.
Compared with the prior art, the utility model has the following beneficial technical effects:
the utility model provides a current-torque characteristic testing device of a limited-angle torque motor, which is characterized in that an output shaft of the limited-angle torque motor is fixedly connected with an output shaft of a self-angle machine through a connector, a direct-current power supply provides current for the limited-angle torque motor, the limited-angle torque motor rotates to drive the self-angle machine to rotate, and the synchronism of the rotation of the motor and a pulley disc with the self-angle machine is realized; the self-angle machine has an angular position feedback function, is connected with an angular position display instrument to provide angular position test, and displays the rotating angle of the self-angle machine through the angular position display instrument, so that the torque test of the limited-angle torque motor under each current is realized. The device of the utility model can directly read the angle of the corresponding current, thereby improving the test precision and the test efficiency.
Further, the precision of the angular position display instrument is 0.001 degrees by selecting the synchro as the synchro with the precision of a single peak value of 3 minutes, so that the high-precision requirement of the test is ensured.
Furthermore, through being an organic whole structure between with connector and the pulley sheave, realize motor, pulley sheave and the synchronism of selsyn pivoted, guarantee the transmission uniformity of moment and angle.
Drawings
FIG. 1 is a schematic structural diagram of a device for testing current-torque characteristics of a limited angle torque motor according to the present invention;
in the drawings: 1 is a limited corner torque motor; 2 is a connector; 3 is a pulley plate; 4 is a self-angle-trimming machine; 5 is a weight; 6 is a base; 7 is a fixing plate; and 8, a fixed block.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the utility model.
As shown in figure 1, the device for testing the current-torque characteristics of the limited angle torque motor comprises a limited angle torque motor 1, a connector 2, a pulley disc 3, a self-leveling machine 4, weights 5, a base 6, a fixing plate 7 and a fixing block 8.
The base 6 is provided with two vertical fixing plates 7, and the two vertical fixing plates 7 are parallel to each other; the fixing plate 7 is fixed on the base 6 through welding, a fixing block 8 is arranged at the connecting part of the fixing plate 7 and the base 6, the fixing block 8 is of an L-shaped structure, one end of the L-shaped fixing block 8 is fixed on the fixing plate 7, and the other end of the L-shaped fixing block 8 is fixed on the base 6; the output shaft of the limited corner torque motor 1 penetrates through the fixing plate 7 on one side, the output shaft of the self-angle machine 4 penetrates through the fixing plate 7 on the other side, the output shaft of the limited corner torque motor 1 and the output shaft of the self-angle machine 4 are fixedly connected through the connector 2, the connector 2 is provided with the pulley disc 3, the pulley disc 3 is wound with a wire, and one end of the wire is provided with a weight 5; the limited corner torque motor 1 is connected with a direct current power supply to supply current, and an ammeter is arranged between the limited corner torque motor 1 and the direct current power supply; the synchrotron 4 is connected with an angular position display instrument, the synchrotron 4 is a synchrotron with a precision single peak value of 3 minutes, and the precision of the angular position display instrument is 0.001 degrees.
The connector 2 is a coupler, two ends of the coupler are respectively sleeved on an output shaft of the limited angle torque motor 1 and an output shaft of the self-angle machine 4, and the connector 2 and the pulley disc 3 are of an integrated structure.
The limited angle torque motor 1 is connected with the self-angle-adjusting machine 4 through the connector 2, and the self-angle-adjusting machine 4 is connected with the angle position display instrument. The limited corner torque motor 1 and the self-angle machine 4 are coaxially connected and installed on the same platform, an integrated structure is formed between the connector 2 and the pulley disc 3, and the synchronism of the limited corner torque motor 1 and the pulley disc 3 with the rotation of the self-angle machine 4 is realized. The synchro 4 selects a precision unimodal 5' motor. The synchro 4 provides angular position test to the angular position display instrument, thereby realizing the torque test of the limited angle torque motor under each current.
Testing the starting torque: the limited corner torque motor 1 is not electrified, the stator and the rotor are adjusted to zero positions, weights 5 are hung in the rotation direction of the motor by a wire wheel method to apply torque, and the torque when the motor rotating shaft reaches the corresponding current corner position under the current of 50mA, 100mA, 150mA, 200mA and 250mA in the loaded starting process is respectively measured by observing an angular position display instrument and adjusting the weight of the weights 5.
And (3) holding torque test: the limited corner torque motor 1 is not electrified, the stator and the rotor are adjusted to zero positions, the motor applies direct current voltage, when the rotor rotates to corresponding corner positions under currents of 50mA, 100mA, 150mA, 200mA and 250mA respectively, torque is applied by a wire wheel method, and a torque value when the rotating shaft just deflects to the corresponding corner position is measured by observing a corner position display instrument.
The test data are shown in tables 1 and 2. The test method realizes the test of the holding torque and the starting torque of the limited-angle torque motor at the corresponding angular position under each current.
TABLE 1 Current-Angle of rotation characteristics
| Current mA | 0 | 50 | 100 | 150 | 200 | 250 |
| Angle (°) | 192.626 | 194.705 | 196.494 | 197.558 | 198.391 | 199.013 |
| Angle of rotation (°) | / | 2.079 | 3.868 | 4.932 | 5.765 | 6.387 |
Table 2 conventional testing: current-torque relationship
| Current mA | 50 | 100 | 150 | 200 | 250 |
| Starting torque (mN.m) | 2 | 5 | 10.5 | 14.7 | 16 |
| Holding torque (mN.m) | 6.8 | 10.8 | 13.7 | 16.7 | 19.4 |
Table 3 new method test: current-torque relationship
Claims (8)
1. A device for testing the current-torque characteristics of a limited corner torque motor is characterized by comprising a limited corner torque motor (1), a connector (2), a pulley plate (3), a self-angle machine (4), weights (5), a base (6) and a fixing plate (7);
the base (6) is provided with two vertical fixing plates (7), and the two vertical fixing plates (7) are parallel to each other; an output shaft of the limited corner torque motor (1) penetrates through a fixing plate (7) on one side, an output shaft of the self-angle machine (4) penetrates through a fixing plate (7) on the other side, the output shaft of the limited corner torque motor (1) and the output shaft of the self-angle machine (4) are fixedly connected through a connector (2), a pulley disc (3) is arranged on the connector (2), a wire is wound on the pulley disc (3), and a weight (5) is arranged at one end of the wire;
the limited angle torque motor (1) is connected with a direct current power supply to provide current, and the self-angle machine (4) is connected with an angular position display instrument.
2. The limited angle torque motor current-torque characteristic testing device according to claim 1, wherein the synchro (4) is a synchro with a precision of 3 minutes per peak, and the angular position indicator has a precision of 0.001 °.
3. The device for testing the current-torque characteristics of the limited angle torque motor according to claim 1, wherein an ammeter is arranged between the limited angle torque motor (1) and a direct current power supply.
4. The device for testing the current-torque characteristics of a limited rotation angle torque motor according to claim 1, wherein the direct current power supply supplies 50mA, 100mA, 150mA, 200mA or 250mA of current.
5. The device for testing the current-torque characteristics of the limited corner torque motor according to claim 1, wherein the connector (2) is a coupler, and two ends of the coupler are respectively sleeved on an output shaft of the limited corner torque motor (1) and an output shaft of the self-angle machine (4).
6. The device for testing the current-torque characteristics of the limited rotation angle torque motor according to claim 1, wherein the connector (2) and the pulley disc (3) are of an integral structure.
7. The device for testing the current-torque characteristics of the limited-angle torque motor according to claim 1, wherein a fixing block (8) is arranged at the connecting part of the fixing plate (7) and the base (6), the fixing block (8) is of an L-shaped structure, one end of the L-shaped fixing block (8) is fixed on the fixing plate (7), and the other end of the L-shaped fixing block is fixed on the base (6).
8. The device for testing the current-torque characteristics of the limited angle torque motor according to claim 1, wherein the fixing plate (7) is fixed on the base (6) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121127224.0U CN215894859U (en) | 2021-05-24 | 2021-05-24 | Current-torque characteristic testing device for limited-angle torque motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121127224.0U CN215894859U (en) | 2021-05-24 | 2021-05-24 | Current-torque characteristic testing device for limited-angle torque motor |
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| CN215894859U true CN215894859U (en) | 2022-02-22 |
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| CN202121127224.0U Active CN215894859U (en) | 2021-05-24 | 2021-05-24 | Current-torque characteristic testing device for limited-angle torque motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739550A (en) * | 2022-05-16 | 2022-07-12 | 横川机器人（深圳）有限公司 | Automatic output torque measuring device of torque motor |
| CN115686090A (en) * | 2022-12-28 | 2023-02-03 | 武汉至驱动力科技有限责任公司 | Corner position control method of limited corner torque motor |
-
2021
- 2021-05-24 CN CN202121127224.0U patent/CN215894859U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739550A (en) * | 2022-05-16 | 2022-07-12 | 横川机器人（深圳）有限公司 | Automatic output torque measuring device of torque motor |
| CN114739550B (en) * | 2022-05-16 | 2024-02-20 | 横川机器人（深圳）有限公司 | Automatic measuring device for output torque of torque motor |
| CN115686090A (en) * | 2022-12-28 | 2023-02-03 | 武汉至驱动力科技有限责任公司 | Corner position control method of limited corner torque motor |
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Address after: 710000 No.2 Taoyuan West Road, Lianhu District, Xi'an City, Shaanxi Province Patentee after: Xi'an micromotor Research Institute Co.,Ltd. Address before: 710000 No.2 Taoyuan West Road, Lianhu District, Xi'an City, Shaanxi Province Patentee before: XI'AN MICROMOTOR Research Institute |