CN204330984U - Electric device for valve motor experimental bench - Google Patents

Abstract

The utility model relates to the technical field of comprehensive detection of rated torque, locked-rotor torque, current, rotational speed and noise etc. for valve electric device motors. The valve electric device motor test bench includes motor joints, connecting flanges, torque sensors and bases. The first bracket and the second bracket are installed on the top, the motor joint is connected to the drive shaft, the other end of the drive shaft is connected to one end of the torque sensor, the other end of the torque sensor is connected to a magnetic powder brake, and the torque sensor is installed on the first bracket , the connecting flange is fixedly installed on the second bracket, and the axis of the connecting flange coincides with the axis of the transmission shaft. The utility model can detect the actual performance parameters of the motor, and can improve and optimize the valve electric device through the mastered motor test data. In the process of design and production, improve product quality and reduce costs.

Description

Valve electric device motor test bench

technical field

The utility model relates to the technical field of comprehensive detection of rated torque, locked-rotor torque, current, rotating speed, noise and the like on a valve electric device motor, in particular to a valve electric device motor test bench.

Background technique

In the previous production and design process of valve actuators, the parameters of the motor were mostly theoretical speculation, some parameters were provided by the motor manufacturer, and there was a lack of instrument testing. Therefore, it was impossible to accurately grasp the actual performance parameters of the motor. When designing valve electric devices, due to inaccurate motor parameters, especially the starting torque, no-load torque, and stall torque of the motor, the selected motor power may be inappropriate. If the actual power of the motor is too large, it will cause waste; if the actual power of the motor is too small, the output torque of the valve electric device will be insufficient, which is not conducive to the design and production of the valve electric device. Only based on the rated power of the motor provided by the motor manufacturer, it is more difficult to calculate the transmission efficiency of the valve electric device. The more comprehensive performance parameters are detected by the test device, and the more accurate transmission efficiency can be calculated.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the existing technology in the production of valve electric devices, because most of the parameters of the motor are theoretical speculations, the accuracy of each data parameter is not high, and the actual performance parameters of the motor cannot be accurately grasped. , which is unfavorable to the design and production of valve electric devices, a motor test bench for valve electric devices is now provided, which can accurately detect various actual performance parameters of the motor.

The technical solution adopted by the utility model to solve the technical problems is: a valve electric device motor test bench, including a motor joint, a connecting flange, a torque sensor and a base, on which a first bracket and a second bracket are installed, and the motor joint and the One end of the transmission shaft is connected by transmission, and the other end of the transmission shaft is connected by transmission to one end of the torque sensor. The other end of the torque sensor is connected by a magnetic powder brake. The torque sensor is installed on the first bracket, and the connecting flange is fixed on the second bracket. , the axis of the connecting flange coincides with the axis of the transmission shaft.

Further, a connection shaft, a transmission sleeve and a secondary connection shaft are also installed between the torque sensor and the magnetic powder brake, the torque sensor is in drive connection with the connection shaft, the magnetic powder brake is in drive connection with the secondary connection shaft, and the connection shaft and the secondary The connecting shafts are connected through transmission sleeves. By adjusting the loading current of the magnetic powder brake, a gradual braking of the magnetic powder brake shaft is formed, and the speed of the brake shaft gradually decreases. At this moment, there is a speed difference between the transmission shafts at both ends of the torque sensor, which forces the shaft of the torque sensor to deform, and finally the output torque of the motor is detected by the torque sensor. Since the loading current of the magnetic powder brake can be adjusted, the output torque of the motor under different load conditions can be detected.

Further, there is also a speedometer for detecting the rotational speed of the motor, and the speedometer is installed on the side of the transmission sleeve.

Furthermore, there is also a noise detector capable of detecting noise. The noise detector is installed on the base and is located next to the motor to detect the noise generated when the motor is running.

Preferably, the velocimeter is a flash velocimeter.

The beneficial effects of the utility model are: the utility model can detect the actual performance parameters of the motor, and can improve and optimize the design and production process of the valve electric device through the mastered motor test data, improve product quality and reduce cost.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional schematic diagram of a motor test bench for a valve electric device;

Fig. 2 is the front view of the motor test bench of the valve electric device;

Fig. 3 is a top view of the motor test bench of the valve electric device.

In the figure: 1. Motor, 2. Connecting flange, 3. Second bracket, 4. Drive shaft, 5. Torque sensor, 6. Connecting shaft, 7. Drive sleeve, 8. Secondary connecting shaft, 9. Magnetic powder brake, 10. The third bracket, 10-1. Speedometer, 11. The first bracket, 12. Motor connector, 13. Noise detector, 14. Base.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

Example 1

As shown in Figures 1 and 2, the valve electric device motor test bench includes a motor connector 12, a connecting flange 2, a torque sensor 5 and a base 14, and the first bracket 11 and the second bracket 3 are installed on the base 14, and the motor connector 12 and the second bracket 3 are installed on the base 14. One end of the transmission shaft 4 is connected by transmission, the other end of the transmission shaft 4 is connected by transmission to one end of the torque sensor 5, the other end of the torque sensor 5 is connected by a magnetic powder brake 9, the torque sensor 5 is installed on the first bracket 11, and the connecting flange 2 is fixedly installed on the second bracket 3, the axis of the connecting flange 2 coincides with the axis of the transmission shaft 4, the motor 1 to be tested is installed on the connecting flange 2, and the output end of the motor 1 is connected to the motor joint 12 in transmission.

As shown in Figures 1 and 2, a connecting shaft 6, a transmission sleeve 7 and a secondary connecting shaft 8 are also installed between the torque sensor 5 and the magnetic powder brake 9, the torque sensor 5 is connected to the connecting shaft 6, and the magnetic powder brake 9 is connected to the secondary connecting shaft. 8 transmission connection, between the connection shaft 6 and the secondary connection shaft 8 through the transmission sleeve 7 transmission connection.

As shown in FIG. 3 , the noise detector 13 for detecting noise is installed on the base 14 and is located beside the motor 1 .

As shown in Figures 1 and 3, there is also a speedometer 10-1 for detecting the rotating speed of the motor 1, the third support 10 is installed on the base 14 and is positioned at the side of the drive sleeve 7, and the speedometer 10-1 is installed on the third support 10 on.

When the motor 1 starts and the magnetic powder brake 9 does not brake, the torque sensor 5 can detect the starting torque of the motor 1, and the ammeter of the test device can also measure the starting current of the motor 1; after the motor 1 rotates smoothly, the magnetic powder brake 9 When not braking, the torque sensor 5 detects the no-load torque of the motor 1, at this time the speedometer 10-1 can measure the no-load speed of the motor 1, and the ammeter of the test device can also measure the no-load current of the motor 1 Adjust the loading current of the magnetic powder brake 9 so that the speed of the motor 1 reaches the rated speed. At this moment, the torque sensor 5 detects the rated torque of the motor 1, and the ammeter of the test device can also measure the rated current of the motor 1; when the magnetic powder brake 9 continues Load the motor 1 until the motor 1 is completely braked, the torque sensor 5 detects the stall torque of the motor 1, and the ammeter of the test device can also measure the stall current of the motor 1.

A noise detector 13 is installed beside the motor 1, which can detect the noise generated when the motor 1 is running.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. Valve electric device motor test bench, comprises motor connector (12), connecting flange (2), torque sensor (5) and base (14), it is characterized in that: the first support ( 11) and the second support (3), the motor joint (12) is connected with one end of the transmission shaft (4) in transmission, and the other end of the transmission shaft (4) is in transmission connection with one end of the torque sensor (5), and the torque The other end of the sensor (5) is connected with a magnetic powder brake (9), the torque sensor (5) is installed on the first bracket (11), and the connecting flange (2) is fixedly installed on the second bracket (3) Above, the axis of the connecting flange (2) coincides with the axis of the transmission shaft (4). 2. The valve electric device motor test bench according to claim 1, characterized in that: a connecting shaft (6), a transmission sleeve (7) and a The secondary connecting shaft (8), the torque sensor (5) is connected to the connecting shaft (6), the magnetic powder brake (9) is connected to the secondary connecting shaft (8), and the connecting shaft (6) is connected to the secondary connecting shaft (6). The shafts (8) are connected through transmission sleeves (7). 3. valve actuator motor test bench according to claim 2, is characterized in that: also have the noise detector (13) that can detect noise, described noise detector (13) is installed on the base (14), and Located next to the motor (1). 4. The valve electric device motor test bench according to claim 2, characterized in that: it also has a speedometer (10-1) for detecting the rotating speed of the motor (1), and the speedometer (10-1) is installed on Drive sleeve (7) side.