Online monitoring non-contact bearing running-in device

Abstract

An online monitoring non-contact bearing running-in device comprises a motor, a motor mounting seat, a diaphragm coupling, a torque tester, a torque tester mounting seat, a magnetic coupling, a bearing mounting flange, a bracket, a motor power supply, a motor driving device, a controller, a temperature control unit and a data acquisition and processing module. The bearing to be subjected to running-in does not make direct contact with the driving part, the bearing is driven to rotate by means of the magnetic force of the magnetic coupling, the current friction torque of the bearing can be read while running-in is conducted, and running-in of the bearing is continued or running-in is stopped according to the test value and the analysis result of the friction torque when the bearing is judged to be qualified. The non-contact running-in device has the advantages that non-contact running-in is achieved, and the running-in requirements of various special conditions such as running-in under the vacuum condition and running-in when a bearing is immersed in special liquid can be met. Running-in data can be monitored in real time, and parameter interpretation and optimization are facilitated. The device can automatically control temperature and save energy. The device is controlled by a program, judges whether the running-in of the bearing is completed or not through data, and automatically enables the bearing which does not complete the running-in to continue running-in. The device is wide in application range, convenient to operate and intelligent to control, and has wide application prospects.

Description

Technical Field

[0001] The invention relates to the field of precision motion mechanisms, in particular to an online monitoring non-contact bearing running-in device, which is mainly used to improve the friction torque stability of a space precision mechanical turntable. Background Art

[0002] In view of the rapid development of the field of space laser communication, the stability requirements for space laser communication payloads are becoming higher and higher. As a key component of laser communication payloads, the assembly and testing quality of the shafting assembly directly affects the working stability of the payload in space. The core of the shafting assembly is the bearing, and the main structure of the bearing consists of four parts: outer ring, inner ring, roller and cage. The outer ring cooperates with the external structure through a small gap and remains stationary during operation. The inner ring cooperates with other components of the shafting system and rotates synchronously with it during operation. The roller is located between the inner and outer rings and maintains its relative position through the cage. In terms of system design, a modular design is adopted to improve the maintainability of the system and reduce maintenance costs. The entire system consists of five modules: measurement and drive module, temperature control module, data acquisition and processing module, bearing installation module and control module. For some special running-in scenarios, such as in a vacuum tank, the existing running-in device cannot effectively run-in while monitoring.

[0003] Patent document CN109194040A discloses a non-contact torque measuring device, which also has a coupling function, and includes a measuring module, a first rotor, and a second rotor. Both the first rotor and the second rotor are permanent magnet rotors, one of the first rotor and the second rotor is connected to the active end, and the other is connected to the driven end. The measuring module measures the position information of the first rotor and the second rotor, and calculates the torque transmitted between the first rotor and the second rotor through the measurement results. However, its data reading is manual, and it needs to look up a table for comparison, and it cannot read accurately for a long time. At the same time, it has fewer intelligent parts, and simple operations such as starting and stopping the test need to be performed manually, which is cumbersome. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an online monitoring non-contact bearing running-in device, which can help staff to intuitively and simply grasp the running-in status of the bearings in special running-in scenarios without directly contacting the bearings that need to be run-in. In addition, the running-in bearings can be measured after the set number of running-in circles, and the test will be performed at the set speed. According to the results, the bearings can be automatically allowed to continue running-in or stop running-in.

[0005] This device is specifically implemented through the following technical solutions:

[0006] An online monitoring non-contact bearing running-in device is characterized by comprising:

[0007] A motor, mounted on a motor mounting base, for providing rotational power;

[0008] A torque tester, mounted on a torque tester mounting base, is used to measure the torque of a rotating component;

[0009] A diaphragm coupling, connecting the motor and the driving end of the torque tester, for transmitting torque;

[0010] A magnetic coupling connects the measuring end of the torque tester to the bearing mounting flange to achieve non-contact torque transmission;

[0011] A bracket, used for supporting and fixing the motor mounting seat and the torque tester mounting seat;

[0012] Motor power supply, providing electrical energy to the motor;

[0013] A motor driving device, used to control the running state of the motor;

[0014] A controller, used to receive signals from the data acquisition and processing module and control the operation of the motor;

[0015] A temperature control unit, used to monitor and control the overall temperature of the device;

[0016] The data acquisition and processing module is used to receive and process the measurement data of the torque tester and drive the controller according to the processing results;

[0017] Among them, the motor is powered by a motor power supply and its operating state is controlled by a motor drive device; the motor is connected to the driving end of the torque tester through a diaphragm coupling to drive the torque tester to rotate; the motor is connected to the driving end of the torque tester through a diaphragm coupling to drive the torque tester to rotate; the measuring end of the torque tester is connected to the bearing mounting flange through a magnetic coupling, and the bearing mounting flange fixes the bearing and drives it to rotate; during the rotation process, the torque tester measures the torque generated by the bearing and transmits the data to the data acquisition and processing module; the data acquisition and processing module receives the measurement data of the torque tester, processes and analyzes it, and according to the processing results, the controller controls the operating state of the motor.

[0018] Preferably, the torque tester and the bearing mounting flange are connected via a magnetic coupling without direct contact.

[0019] Preferably, the non-contact effective range of the magnetic coupling is less than or equal to 2 cm.

[0020] Preferably, the torque tester is a torque tester produced by Sendongbada, with a torque test range of 0 to 0.5 N·m and a test accuracy of 0.01 N·m.

[0021] Preferably, the motor is a stepper motor with a step distance of 1.8°, an operating current of 2.3A, and a maximum torque of 0.89N·m.

[0022] Preferably, the data acquisition and processing module reads data at an interval of 10ms-1000ms.

[0023] Preferably, the set temperature of the temperature control unit is 45°C, that is, when the system temperature reaches 45°C, the temperature control component starts to work.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The non-contact bearing running-in device designed for online monitoring has a modular design and is an integral unit after installation, which is convenient for movement, installation and maintenance.

[0026] Non-contact running-in reduces the additional stress that may be caused by direct connection, and can also meet the running-in requirements of most special situations. It has great application prospects in various environments.

[0027] Real-time online monitoring allows personnel to directly observe running-in data. When special conditions occur, they can respond more quickly to interpret and optimize parameters.

[0028] A temperature control module is set up to save energy while ensuring the normal operation of the device. More measuring points can be added in the future to more accurately test the temperature of different parts and achieve precise cooling.

[0029] The data acquisition and processing module can edit conditions and operating modes by itself, and can automatically enter the test mode after running in a set number of laps as required. After testing at the set speed, a new round of testing will be carried out or the test will be stopped based on whether the test data is qualified or not.

[0030] It can monitor the friction torque of the bearing during running-in in real time, and is equipped with a temperature control unit to effectively prevent the system from overheating and save energy at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional view of an online monitoring non-contact bearing running-in device provided by the present invention;

[0032] Figure 2 Three views of an online monitoring non-contact bearing running-in device provided by the present invention;

[0033] Figure 3 A structural diagram of an online monitoring non-contact bearing running-in device provided by the present invention;

[0034] Figure 4An actual test diagram of an online monitoring non-contact bearing running-in device provided by the present invention;

[0035] In the figure: 1—motor; 2—motor mounting seat; 3—diaphragm coupling; 4—torque tester; 5—torque tester mounting seat; 6—magnetic coupling; 7—bearing mounting flange; 8—bracket; 9—motor power supply; 10—motor drive device; 11—controller; 12—temperature control unit; 13—data acquisition and processing module. DETAILED DESCRIPTION

[0036] 1. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] 2. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] See also Figure 1-3 As shown in the figure, an online monitoring non-contact bearing running-in device includes a motor 1, a motor mounting seat 2, a diaphragm coupling 3, a torque tester 4, a torque tester mounting seat 5, a magnetic coupling 6, a bearing mounting flange 7, a bracket 8, a motor power supply 9, a motor drive device 10, a controller 11, a temperature control unit 12 and a data acquisition and processing module 13. The motor 1 is mounted on the motor mounting seat 2, and the torque tester 4 is mounted on the torque tester mounting seat 5. The motor mounting seat 2 and the torque tester mounting seat 5 are fixed on the bracket 8. The motor 1 is connected to the driving end of the torque tester 4 through the diaphragm coupling 3, and is responsible for driving the torque tester 4. The measuring end of the torque tester 4 is connected to the bearing mounting flange 7 through the magnetic coupling 6, and the bearing mounting flange 7 is connected to the bearing. The motor power supply 9, the motor drive device 10 and the controller 11 are connected to the motor to control the movement of the motor. The temperature control unit 12 receives the temperature information of the device and is responsible for controlling the temperature of the entire device. The data acquisition and processing module 13 is connected to the torque tester 4, the controller 11, and the temperature control unit 12, receives and processes the measurement data of the torque tester 4, and drives the controller to complete the required operation according to the processed data.

[0039] The motor is fixed to the bracket through the motor mounting seat, powered by the motor power supply, and its operating state is controlled by the motor drive device. The motor is connected to the driving end of the torque tester through the diaphragm coupling to drive the torque tester to rotate. The motor is connected to the driving end of the torque tester through the diaphragm coupling to drive the torque tester to rotate. The measuring end of the torque tester is connected to the bearing mounting flange through the magnetic coupling, and the bearing mounting flange fixes the bearing and drives it to rotate. During the rotation process, the torque tester measures the torque generated by the bearing and transmits the data to the data acquisition and processing module. The data acquisition and processing module receives the measurement data of the torque tester for processing and analysis. According to the processing results, the controller controls the operating state of the motor, such as adjusting the speed, stopping or continuing to run, etc. At the same time, the temperature control unit monitors the temperature of the device and adjusts the temperature as needed to ensure that the device operates in a suitable environment.

[0040] Experiments have shown that the present invention reduces friction and wear through a non-contact design, improves measurement accuracy and device reliability. At the same time, through online monitoring and data acquisition and processing, real-time monitoring and evaluation of the running-in state of the bearing is achieved.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An online monitoring non-contact bearing running-in device, characterized in that: include: A motor (1) is mounted on a motor mounting base (2) and is used to provide rotational power; A torque tester (4), mounted on a torque tester mounting base (5), for measuring the torque of a rotating component; A diaphragm coupling (3) is connected between the motor (1) and the driving end of the torque tester (4) for transmitting torque; A magnetic coupling (6) connects the measuring end of the torque tester (4) and the bearing mounting flange (7) to achieve non-contact torque transmission; A bracket (8) for supporting and fixing the motor mounting seat (2) and the torque tester mounting seat (5); A motor power supply (9) for providing electric energy to the motor (1); A motor drive device (10) for controlling the operating state of the motor (1); A controller (11) is used to receive signals from a data acquisition and processing module (13) and control the operation of the motor (1); A temperature control unit (12) for monitoring and controlling the overall temperature of the device; The data acquisition and processing module (13) is used to receive and process the measurement data of the torque tester (4) and drive the controller (11) according to the processing results.

2. The online monitoring non-contact bearing running-in device according to claim 1 is characterized in that: The torque tester and the bearing mounting flange are connected via a magnetic coupling without direct contact.

3. The on-line monitoring non-contact bearing running-in device according to claim 2 is characterized in that The non-contact effective range of the magnetic coupling is less than or equal to 2cm.

4. The online monitoring non-contact bearing running-in device according to claim 1 is characterized in that: The torque tester is a torque tester produced by Sendongbada, with a torque test range of 0 to 0.5 N·m and a test accuracy of 0.01 N·m.

5. The on-line monitoring non-contact bearing running-in device according to claim 1 is characterized in that The motor is a stepper motor with a step distance of 1.8°, an operating current of 2.3A, and a maximum torque of 0.89N·m.

6. The on-line monitoring non-contact bearing running-in device according to claim 1 is characterized in that The data acquisition and processing module reads data at an interval of 10ms-1000ms.

7. The on-line monitoring non-contact bearing running-in device according to claim 1 is characterized in that The set temperature of the temperature control unit is 45°C, that is, when the system temperature reaches 45°C, the temperature control component starts working.

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