An intelligent servo motor dynamometer

Abstract

The present invention discloses an intelligent servo motor dynamometer, comprising a base, a servo motor, a detection component and a control terminal. The base is provided with a test machine installation position and a servo motor installation position at intervals. The base is installed on the servo motor installation position. The detection component comprises a torque detection unit, a temperature detection unit and a speed detection unit. The signal input ends of the torque detection unit, the temperature detection unit and the speed detection unit are connected to the servo motor. The control terminal is communicatively connected with the servo motor, the torque detection unit, the temperature detection unit and the speed detection unit. The intelligent servo motor dynamometer has short test time, high test efficiency and high test accuracy.

Description

Technical Field

[0001] The invention relates to the field of motor testing, and in particular to an intelligent servo motor dynamometer. Background Art

[0002] In the field of motor manufacturing and application, in order to ensure the performance, quality and reliability of the motor, it needs to be comprehensively tested and evaluated.

[0003] With the development of embedded technology, sensors and instrument communication control technology, test equipment manufacturers began to integrate test instruments, sensors and mechanical loading systems to form a preliminary motor testing equipment - dynamometer.

[0004] Due to the rapid development of science and technology in recent years, motors, as a key control device, are increasingly used in various fields. In order to ensure the performance and quality of motors, it is particularly important to accurately test and evaluate them.

[0005] Traditional motor dynamometers usually rely on manual observation, data reading and analysis, which takes a long time and has relatively low efficiency. Traditional dynamometer methods have many shortcomings, such as low test accuracy, long test cycle, and high requirements for operators. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to invent an intelligent servo motor dynamometer with short testing time, high testing efficiency and high testing accuracy.

[0007] The purpose of the present invention adopts the following technical scheme:

[0008] An intelligent servo motor dynamometer, comprising:

[0009] A base, on which a test machine mounting position and a servo motor mounting position are arranged at intervals;

[0010] A servo motor is installed on the servo motor installation position;

[0011] A detection component, comprising a torque detection unit, a temperature detection unit and a speed detection unit, wherein signal input ends of the torque detection unit, the temperature detection unit and the speed detection unit are connected to the servo motor;

[0012] The control terminal is communicatively connected with the servo motor, the torque detection unit, the temperature detection unit and the rotation speed detection unit.

[0013] Furthermore, the servo motor includes a housing, a main shaft, a stator and a rotor. One end of the main shaft passes through the housing and is transmission-connected to the torque detection unit. The other end of the main shaft is installed with the speed detection unit. The rotor is installed on the outside of the part of the main shaft placed in the housing, and the stator is sleeved on the outside of the rotor.

[0014] Furthermore, a gap is formed between the rotor and the stator, a gas flow channel connected to the gap is formed between the stator and the shell, and air holes connected to the gas flow channel are opened on the surface of the shell, and the air holes are arranged in the tangential direction of the rotor.

[0015] Furthermore, a roller bearing is provided at the connection between the main shaft and the housing.

[0016] Furthermore, the speed detection unit includes a detection disk installed on the main shaft and a speed sensor arranged on the side of the detection disk and fixed to the shell, and a plurality of magnetic units are evenly arranged on the surface of the detection disk along the radial direction. The speed sensor is suitable for sensing the magnetic unit rotating to the position of the speed sensor, and generating an electrical signal transmitted to the control terminal when the magnetic unit is sensed.

[0017] Furthermore, the torque detection unit includes a mounting seat, a torque sensor and a coupling. The mounting seat is arranged between the testing machine mounting position and the servo motor mounting position. A mounting hole is opened on the mounting seat. The coupling is rotatably mounted in the mounting hole. The torque sensor is arranged on the outside of the coupling.

[0018] Furthermore, a fixing seat is installed on the test machine installation position, a plurality of mounting grooves are arranged at intervals along the width direction on the fixing seat, the mounting grooves extend along the length direction of the fixing seat, and a plurality of mounting holes are arranged at intervals at the bottom of the mounting grooves.

[0019] Furthermore, the fixing seat and the base are integrally formed.

[0020] Furthermore, a box is arranged at the top of the servo motor, and the control terminal is arranged in the box.

[0021] Furthermore, a plurality of hook rings are evenly arranged on the side surface of the servo motor.

[0022] Beneficial effects:

[0023] The present invention uses the servo motor as a test load, and the user can control the speed, torque, etc. of the servo motor according to the use requirements, thereby improving the accuracy and stability of the test; and the torque detection unit, temperature detection unit and speed detection unit tests set up replace the traditional manual visual inspection method, with high test efficiency, short test cycle and high measurement accuracy, which can meet the needs of accurate evaluation of motor performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an intelligent servo motor dynamometer of the present invention;

[0025] Figure 2 A cross-sectional view of an intelligent servo motor dynamometer according to the present invention;

[0026] Reference numerals:

[0027] 10. Base; 101. Fixing seat; 1011. Mounting slot; 20. Servo motor; 201. Housing; 202. Spindle; 203. Stator; 204. Rotor; 205. Gap; 206. Gas flow channel; 207. Air hole; 208. Roller bearing; 209. Housing; 30. Detection component; 301. Torque detection unit; 3011. Mounting seat; 3012. Torque sensor; 3013. Coupling; 302. Speed ​​detection unit; 40. Motor to be tested. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 and Figure 2 As shown, an intelligent servo motor dynamometer comprises:

[0033] A base 10, on which a test machine mounting position and a servo motor 20 mounting position are arranged at intervals;

[0034] A servo motor 20 is installed on the servo motor 20 installation position;

[0035] The detection component 30 includes a torque detection unit 301, a temperature detection unit and a speed detection unit 302, and the signal input ends of the torque detection unit 301, the temperature detection unit and the speed detection unit 302 are connected to the servo motor 20;

[0036] The control terminal is communicatively connected with the servo motor 20 , the torque detection unit 301 , the temperature detection unit and the rotation speed detection unit 302 .

[0037] During the test, the motor to be tested is installed on the installation position of the test machine, and the main shaft 202 of the motor to be tested is connected to the main shaft 202 of the servo motor 20. When the back electromotive force of the motor to be tested is measured, the motor to be tested is directly powered so that the motor to be tested drives the servo motor 20 to work and generate electricity, and the generated voltage is the back electromotive force; when the working characteristic test of the motor to be tested is performed, the control terminal sets the torque value of the servo motor 20 as needed to make the servo motor 20 produce different resistances. The motor to be tested works, and the torque detection unit 301 and the speed detection unit 302 will detect the torque and speed of the servo motor 20, and transmit the torque information and the electrical signal to the control terminal. The control terminal analyzes and measures the power and efficiency of the motor to be tested under different loads, and displays them on a display screen connected to the control terminal. During the test, the temperature sensor will synchronously collect the temperature information in the servo motor 20 and transmit the temperature information to the control terminal to obtain the heating condition of the motor to be tested.

[0038] The present invention uses the servo motor 20 as a test load, and the user can control the speed, torque, etc. of the servo motor 20 according to the use requirements, thereby improving the accuracy and stability of the test; and the torque detection unit 301, temperature detection unit and speed detection unit 302 tests set up replace the traditional manual visual inspection method, with high test efficiency, short test cycle and high measurement accuracy, which can meet the needs of accurate evaluation of motor performance.

[0039] Preferably, in this embodiment, the servo motor 20 includes a housing 201, a main shaft 202, a stator 203 and a rotor 204. One end of the main shaft 202 passes through the housing 201 and is transmission-connected to the torque detection unit 301. The other end of the main shaft 202 is provided with the speed detection unit 302. The rotor 204 is provided on the outside of the part of the main shaft 202 placed in the housing 201. The stator 203 is sleeved on the outside of the rotor 204.

[0040] In order to facilitate the discharge of heat generated during the operation of the servo motor 20, in the present embodiment, a gap 205 is formed between the rotor 204 and the stator 203, a gas flow channel 206 connected to the gap 205 is formed between the stator 203 and the housing 201, and an air hole 207 connected to the gas flow channel 206 is opened on the surface of the housing 201, and the air hole 207 is arranged in the tangential direction of the rotor 204 to facilitate the heat in the servo motor 20 to be removed when the rotor 204 rotates.

[0041] In order to improve the accuracy of measurement, in this embodiment, a roller bearing 208 is provided at the connection between the main shaft 202 and the housing 201. The roller bearing 208 has high rotation accuracy and can effectively reduce the error generated during the rotation of the main shaft 202.

[0042] In addition, in order to further improve the accuracy of measurement, in this embodiment, the speed detection unit 302 includes a detection disk installed at the end of the main shaft 202 and a speed sensor arranged on the side of the detection disk and fixed to the shell 201, and a plurality of magnetic units are evenly arranged on the surface of the detection disk along the radial direction. The speed sensor is suitable for sensing the magnetic unit rotating to the speed sensor position, and generates an electrical signal transmitted to the control terminal when the magnetic unit is sensed.

[0043] During operation, the detection disk rotates together with the main shaft 202 to drive the magnetic unit on the detection disk to rotate. When the magnetic unit rotates to the receiving end of the speed sensor, the speed sensor will detect the magnetic unit and generate an electrical signal to be transmitted to the control terminal. The control terminal calculates the rotation speed of the tested motor based on the time difference of receiving the electrical signal and the distance from the center of the detection plate to the magnetic unit.

[0044] Preferably, in order to improve the accuracy of torque measurement, in this embodiment, the torque detection unit 301 also includes a mounting seat 3011, a torque sensor 3012 and a coupling 3013, and the mounting seat 3011 is arranged between the testing machine mounting position and the servo motor 20 mounting position, and a mounting hole is opened on the mounting seat 3011, and the coupling 3013 can be rotatably installed in the mounting hole, and the torque sensor 3012 is arranged on the outside of the coupling 3013.

[0045] This setting method is used to accurately measure the torque of the tested motor when the tested motor is working.

[0046] Preferably, in the present embodiment, in order to accommodate the tested motors of different sizes, a fixing seat 101 is also installed on the testing machine installation position, and a plurality of mounting grooves 1011 are arranged at intervals along the width direction on the fixing seat 101, and the mounting grooves 1011 extend along the length direction of the fixing seat 101, and a plurality of mounting holes are arranged at intervals at the bottom of the mounting grooves 1011, so that the staff can install the tested motors of different widths for testing.

[0047] At the same time, in order to improve the stability of the structure, in this embodiment, the fixing seat 101 and the base 10 are also formed in one piece.

[0048] In addition, in order to protect the control terminal, in the present embodiment, a box 209 is further provided at the top of the servo motor 20 , and the control terminal is provided in the box 209 .

[0049] In order to facilitate the staff to replace the servo motor 20 for maintenance, in this embodiment, a plurality of hooks are evenly arranged on the side of the servo motor 20 to facilitate the user to lift the servo motor 20 for maintenance and replacement.

[0050] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. An intelligent servo motor dynamometer, characterized in that: include: A base, on which a test machine mounting position and a servo motor mounting position are arranged at intervals; A servo motor is installed on the servo motor installation position; A detection component, comprising a torque detection unit, a temperature detection unit and a speed detection unit, wherein signal input ends of the torque detection unit, the temperature detection unit and the speed detection unit are connected to the servo motor; The control terminal is communicatively connected with the servo motor, the torque detection unit, the temperature detection unit and the rotation speed detection unit.

2. The intelligent servo motor dynamometer according to claim 1, characterized in that: The servo motor includes a housing, a main shaft, a stator and a rotor. One end of the main shaft passes through the housing and is transmission-connected to the torque detection unit. The other end of the main shaft is installed with the speed detection unit. The rotor is installed on the outside of the main shaft placed in the housing. The stator is sleeved on the outside of the rotor and fixedly connected to the housing.

3. The intelligent servo motor dynamometer according to claim 2, characterized in that: A gap is formed between the rotor and the stator, a gas flow channel communicating with the gap is formed between the stator and the shell, and air holes communicating with the gas flow channel are opened on the surface of the shell.

4. The intelligent servo motor dynamometer according to claim 2, characterized in that: A roller bearing is arranged at the connection between the main shaft and the housing.

5. The intelligent servo motor dynamometer according to claim 2, characterized in that: The speed detection unit includes a detection disk installed on the main shaft and a speed sensor arranged on the side of the detection disk and fixed to the shell. A plurality of magnetic units are evenly arranged on the surface of the detection disk along the radial direction. The speed sensor is suitable for sensing the magnetic unit rotating to the speed sensor position, and generates an electrical signal transmitted to the control terminal when the magnetic unit is sensed.

6. The intelligent servo motor dynamometer according to claim 2, characterized in that: The torque detection unit includes a mounting seat, a torque sensor and a coupling. The mounting seat is arranged between the testing machine mounting position and the servo motor mounting position. A mounting hole is opened on the mounting seat. The coupling is rotatably mounted in the mounting hole. The torque sensor is arranged on the outside of the coupling.

7. The intelligent servo motor dynamometer according to claim 1, characterized in that: A fixing seat is installed on the test machine installation position, and a plurality of mounting grooves are arranged at intervals along the width direction on the fixing seat. The mounting grooves extend along the length direction of the fixing seat, and a plurality of mounting holes are arranged at intervals at the bottom of the mounting grooves.

8. The intelligent servo motor dynamometer according to claim 7, characterized in that: The fixing seat and the base are integrally formed.

9. The intelligent servo motor dynamometer according to claim 1, characterized in that: A box is arranged at the top of the servo motor, and the control terminal is arranged in the box.

10. The intelligent servo motor dynamometer according to claim 1, characterized in that: A plurality of hook rings are evenly arranged on the side of the servo motor.

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