CN218481905U - Motor test detection equipment - Google Patents

Abstract

The utility model belongs to the technical field of the real learning equipment that instructs of motor, a motor test check out test set is disclosed. The motor test detection apparatus includes: the motor multi-speed control system is used for manual relay control, manual screen control and automatic multi-speed control of the motor; the temperature rise detection device is used for monitoring and displaying the running temperature rise of the motor in real time; the electric bearing machine vibration detection device is used for monitoring and displaying the bearing vibration detection in real time during the operation of the motor; the multi-parameter detection device is used for detecting and displaying the current, the voltage, the power, the frequency and the power factor of the motor; the motor bearing end jump detection device is used for monitoring and displaying the end jumps of the bearings at two running ends of the motor in real time. This practicality can accomplish the detection of motor maintenance, maintenance back detection, debugging, test data to parameter detection test equipment after the motor maintenance is maintained is provided, practical training learning equipment is provided for user and learner simultaneously.

Description

Motor test detection equipment

Technical Field

The utility model belongs to the technical field of the real learning equipment that instructs of motor, especially, relate to a motor test check out test set.

Background

When a maintenance person maintains and repairs the motor, multiple power-on dynamic detection items and temperature rise experiments are needed according to the detection standard of the motor, so that the effect of the motor after maintenance and repair is ensured. At present, two ways of motor dynamic detection are provided, one is that the motor to be detected is installed back to the original equipment for testing; and secondly, testing by temporary electricity. The first method has the defects that the assembly and disassembly are inconvenient, the motor needs to be disassembled and assembled again after being unqualified in maintenance and repair during the test, and the second method has the defects that the detection can be carried out only at a single speed, and the tests at various speeds and various working conditions cannot be simulated.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) The existing practical training learning equipment cannot be combined with a motor dynamic detection structure, and cannot accurately obtain information on the implementation running state of a motor. Technical support cannot be provided for motor failure advance prevention.

(2) The practical training learning equipment in the prior art is poor in operability, and can not detect current, voltage, power, frequency, power factor, temperature rise, vibration and end jumping influence factors of a motor shaft of at least 6 speeds such as low, medium and high speeds of the motor after being electrified through an integrated instrument, so that the operation state of the motor is detected in a complex and labor-consuming manner, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the correlation technique, the utility model discloses an embodiment provides a motor test check out test set.

The technical scheme is as follows: the motor test detection apparatus includes:

the motor multi-speed control system is used for manual relay control, manual screen control and automatic multi-speed control of the motor;

the temperature rise detection device is connected with the motor multi-speed control system and is used for monitoring and displaying the running temperature rise of the motor in real time;

the electric bearing machine vibration detection device is connected with the monitored motor and is used for monitoring and displaying the bearing vibration detection in real time during the operation of the motor;

the multi-parameter detection device is connected with the motor multi-speed control system and is used for detecting and displaying the current, the voltage, the power, the frequency and the power factor of the motor;

the motor bearing end jump detection device is arranged on the front bearing and the rear bearing of the motor to be monitored and is used for monitoring and displaying the end jump of the bearings at two running ends of the motor in real time.

In one embodiment, the motor multi-speed control system comprises a main circuit, a motor manual relay control circuit, a motor manual HMI touch screen, and a PLC programmable controller;

the motor manual relay control circuit, the motor manual HMI touch screen and the PLC are all connected with the main circuit through signal lines.

In one embodiment, the motor manual relay control circuit comprises electrical components such as an earth leakage breaker, a contactor, a thermal relay and a knob switch of a control loop;

the residual current circuit breaker, the contactor, the thermal relay and the knob switch of the control circuit are all connected with the main circuit through signal lines.

In one embodiment, the motor manual HMI touch screen is configured to communicate with the PLC through a human-machine interface.

In one embodiment, the motor temperature rise detection device comprises two groups of infrared probe type sensors which are connected with a high-precision intelligent temperature controller, and the motor operation temperature rise detection device is used for monitoring and displaying the motor operation temperature rise in real time.

In one embodiment, the motor bearing machine vibration detection device is connected with a PLC (programmable logic controller) by adopting a vibration sensor and is used for detecting and displaying the motor vibration.

In one embodiment, the multi-parameter detection device is connected with a three-phase multifunctional power meter display meter through a three-phase current of the motor, a voltage transformer and an output three-phase perforated Hall alternating voltage sensor, and is used for measuring and displaying the current, the voltage, the power, the frequency and the power factor when the motor runs.

In one embodiment, the motor end-bearing end-jump detecting device includes:

the displacement sensor is used for detecting the jump displacement of the bearing end of the motor;

and a dial indicator for displaying the jumping numerical values of the two end shafts when the motor runs.

In one embodiment, the number of the temperature rise detection devices is 3.

In one embodiment, the number of the motor bearing end jump detection devices is 2, and the motor bearing end jump detection devices are respectively positioned at the front and rear different bearing ends of the motor.

Combine foretell all technical scheme, the utility model discloses the advantage and the positive effect that possess do:

first, to the technical problem that above-mentioned prior art exists and the degree of difficulty of solving this problem, combine closely the utility model discloses an in-process result and data etc. of technical scheme and the research and development that will protect, analyze in detail, deeply the utility model discloses technical problem that technical scheme how solved, some that bring after the solution problem possess creative technological effect, the concrete description is as follows:

the utility model discloses borrow for reference internal detection and experimental all kinds of devices, combine motor "developments" to detect, proposed with the test motor low after the circular telegram, intermediate speed, high-speed 3 kinds of speed's electric current, voltage, power, frequency, power factor, temperature rise, vibrations and motor shaft the end dynamic verification such as beat and combine into the test equipment as an organic whole. The motor dynamic detection real-time display is realized.

Second, regard as a whole or from the product angle to technical scheme, the utility model discloses technical effect and advantage that technical scheme that will protect possesses, the concrete description is as follows:

the utility model provides a motor test detection device provides motor maintenance, the experimental motor check out test set of back circular telegram. The device can detect the current, voltage, power, frequency, power factor, temperature rise, vibration and end bounce of a motor shaft of at least 6 speeds such as low, medium and high speeds of the motor after being electrified through corresponding hardware, can finish the detection of motor maintenance, detection after maintenance, debugging and test data, provides parameter detection test equipment after the maintenance and the maintenance of the motor, and simultaneously provides practical training and learning equipment for users and learners.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of a motor test detection device provided by an embodiment of the present invention;

FIG. 2 is a hardware schematic diagram of a multi-speed control system for an electric motor according to an embodiment of the present invention;

fig. 3 (a) is an overall schematic diagram of motor control in the main circuit according to an embodiment of the present invention;

fig. 3 (b) is a schematic diagram of a control of a contactor in a main circuit according to an embodiment of the present invention;

fig. 3 (c) is a schematic diagram of a control of a loop in a main circuit according to an embodiment of the present invention;

fig. 4 is a logic control design diagram of a manual control ladder diagram of a PLC programmable controller according to an embodiment of the present invention;

fig. 5 is a first logic control design diagram of an automatic control ladder diagram of a PLC programmable controller according to an embodiment of the present invention;

fig. 6 is a second logic control design diagram of an automatic control ladder diagram of a PLC according to an embodiment of the present invention;

in the figure: 1. a motor multi-speed control system; 1-1, a main circuit; 1-2, a motor manual relay control circuit; 1-2-1, a leakage breaker; 1-2-2, a contactor; 1-2-3, a thermal relay; 1-2-4, knob switch; 1-3, a manual HMI touch screen of a motor; 1-4, a PLC programmable controller; 2. a temperature rise detection device; 3. an electric bearing machine vibration detection device; 4. a multi-parameter detection device; 5. a motor bearing end jump detection device; 5-1, a displacement sensor; 5-2 parts of a dial indicator.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from the embodiments described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

1. Illustrative examples are illustrated:

example 1

As shown in fig. 1, the embodiment of the present invention provides a motor test detection apparatus, including:

the motor multi-speed control system 1 specifically realizes the functions of manual relay control, manual screen control and automatic multi-speed control of the motor;

the temperature rise detection device 2 is connected with a high-precision intelligent temperature controller by designing two groups of industrial high-precision infrared 4-20mA probe type sensors, so that the design of the motor temperature rise detection device 2 is realized, and the real-time monitoring and display of the running temperature rise of the motor are realized;

the electric bearing machine vibration detection device 3 is connected with a PLC analog quantity channel by adding a high-precision vibration sensor (frequency response is 10-1000Hz, measurement range is 0-1000um vibration peak-to-peak displacement value range, output is 4-20 mA), programs are compiled on PLC programmable controllers 1-4, real-time accurate data are read, and meanwhile, vibration data detection numerical value display is made on an HMI human-machine interface, so that the design of the electric bearing machine vibration detection device can be realized, and the real-time monitoring and display of the operation vibration of the electric bearing machine are realized.

The multi-parameter detection device 4 is used for detecting the current, the voltage, the power, the frequency and the power factor of the motor;

motor bearing end jump detection means 5.

In the embodiment of the utility model, the number of the temperature rise detection devices 2 is 3;

the number of the motor bearing end jump detection devices 5 is 2. Respectively located at the front and rear different bearing ends of the motor.

Example 2

After the maintenance personnel finish the motor detection work, the motor to be detected is installed on the motor experiment detection equipment, and the motor dynamic detection is finished.

In the embodiment of the present invention, the contents of the motor test: input current, voltage, power, frequency, power factor, vibration, temperature, end jump are detected.

The motor adopts the temperature rise (resistance method) of the B-level insulated stator winding to be less than or equal to 80K, the motor adopts the temperature rise (resistance method) of the F-level insulated stator winding to be less than or equal to 105K, and the allowable temperature (thermometer method) of the bearing is less than or equal to 95 ℃. Measurement of maximum temperature of motor surface by increasing load gradually to 140% of rated load after temperature rise test of motor surface maximum temperature measured by thermometer method should be not more than 130 deg.C at temperature rise test.

In the embodiment of the utility model, the detection of motor speed and bearing vibration:

(1) The rated rotation speed is less than 750r/min, and the vibration value of the bearing is not more than 0.12mm;

(2) The bearing vibration value of the rotary machine with the rated rotating speed of 1000r/min is not more than 0.10mm;

(3) The vibration value of the bearing does not exceed 0.085mm when the rotary machine is rotated at the rated rotating speed of 1500 r/min;

(4) The vibration value of the bearing does not exceed 0.05mm when the rotary machine is rotated at a rated rotating speed of 3000 r/min.

TABLE 1 round runout criterion

Example 3

As shown in fig. 2, based on the motor test detection device described in embodiment 1, further, the motor multi-speed control system 1 specifically includes a main circuit 1-1 (as shown in fig. 3 (a)), a motor manual relay control circuit 1-2, a motor manual HMI touch screen 1-3, and a PLC programmable controller 1-4, and specifically implements the functions of manual relay control, manual screen control, and automatic multi-speed control of the motor.

As shown in fig. 3 (a) to 3 (c), in an embodiment of the present invention, a main circuit 1-1 is used for controlling multi-speed operation of the motor;

the motor manual relay control circuit 1-2 comprises electric appliance elements such as a leakage circuit breaker, a contactor 1-2-2 and a thermal relay 1-2-3 to realize the design of a main loop of the motor, and the control loop mainly comprises a knob switch 1-2-4 to realize the control reality of forward and reverse rotation of the simple manual motor.

The specific electric action principle is as follows: when the manual control of the forward and reverse operation of the motor is selected, firstly, after the knob SB2 is rotated to be switched, the contactor 1-2-2KM1 is electrified and sucked, the normally open contact of the contactor 1-2-2KM1 is electrified and closed, the motor M1 rotates forwards and rotates, when the stop is needed, after the knob SB1 is rotated to stop switching, the motor M1 stops rotating, and the reverse rotation principle is the same as that of the forward rotation.

Example 4

Based on the motor test detection device described in embodiment 1, further, the manual HMI touch screen 1-3 of the motor realizes the intercommunication between people and equipment through a human-machine interface, firstly, a manual control picture is designed on the HMI touch screen, an instruction of an internal register M of the HMI touch screen is added, and the HMI touch screen is in communication with the PLC programmable controller 1-4, so as to realize the manual control of the manual HMI touch screen 1-3 of the motor.

As shown in fig. 4, the specific control program includes a motor forward rotation and reverse rotation manual program:

the manual program is from a network 1 to a network 6, firstly, a manual M30.1 is selected to be switched on, when a motor is pressed down to rotate forward M0.0, a forward rotation indicator lamp Q0.0 and a forward rotation low-speed indicator lamp Q0.1 are output, when Q0.0 realizes self-locking, Q0.0 and Q0.1 output forward rotation low-speed signals to a frequency converter to enable the motor to operate at a low speed manually, and when the motor is pressed down to stop M0.6 after stopping, the output signals of Q0.0 and Q0.1 are cut off. The motor is stopped. The control flow of the medium-speed and high-speed motors is similar to that of the low-speed control. The low, medium and high control in the reverse rotation of the motor is similar to the flow of the low, medium and high control in the forward rotation of the motor.

The specific working principle of the automatic control mode of the motor is as follows:

the automatic starting and stopping of the motor are realized after the starting button is started, a manual control picture and an automatic operation time setting picture are designed on a manual HMI touch screen 1-3 of the motor, and the automatic stopping function of the motor after the automatic operation time is set is realized through communication setting of a register M, VW instruction in the manual HMI touch screen 1-3 of the motor and a PLC (programmable logic controller) 1-4.

As shown in fig. 5 to 6, the automatic forward/reverse rotation program of the motor includes:

the automatic program is from the network 7 to the network 16, firstly, manual M30.10 is selected to be switched on, when the motor is pressed to rotate forwards and automatically run, in the program network 7, the automatic forward rotation M3.0 is started, M20.0 is electrified, M10.0 is self-locked, the output of a forward rotation indicator lamp Q0.0 and a forward rotation low-speed indicator lamp Q0.1 is realized by combining M20.0 in the program network 1, when Q0.0 realizes self-locking, Q0.0 and Q0.1 output forward rotation low-speed signals to a frequency converter, the motor is enabled to run at a manual low speed, timing is carried out by combining self-set time T60, and when the time of the T60 timer is up, the T60 switches off the low-speed forward rotation control of the M20.0 motor, and simultaneously switches on M10.1, the running of the motor is realized, and the running mode is similar to the low-speed running mode of the motor. The high-speed control mode of the motor is similar to the low-speed and medium-speed control mode, and when the motor is pressed to stop m0.6 after the motor needs to stop, the output signal of the Q end is cut off. The motor is stopped. The control flow of the medium-speed and high-speed motors is similar to that of the low-speed control. The low, medium and high control in the reverse rotation of the motor is similar to the flow of the low, medium and high control in the forward rotation of the motor.

Example 5

Based on the motor test detection device described in embodiment 1, further, the motor temperature rise detection device 2 is connected with the high-precision intelligent temperature controller by designing two sets of industrial high-precision infrared 4-20mA probe type sensors, so that the design of the motor temperature rise detection device 2 is realized, and the real-time monitoring and display of the motor running temperature rise are realized.

Example 6

Based on the motor test detection equipment described in embodiment 1, further, the motor bearing machine vibration detection device 3 is connected with the PLC analog channel by adding a high-precision vibration sensor (frequency response is 10-1000Hz; measurement range is 0-1000um vibration peak-to-peak displacement value range; output is 4-20 mA), programs the PLC programmable controllers 1-4, reads real-time accurate data, and generates a vibration data detection value on the HMI human-machine interface to display, so that the design of the motor vibration detection device can be realized, and the real-time monitoring and display of the motor running vibration can be realized.

Example 7

Based on the motor test detection device described in embodiment 1, further, the multi-parameter detection device 4 is used for detecting the motor current, voltage, power, frequency and power factor; the three-phase high-precision current and voltage transformer module of the motor is added to output a 4-20mA three-phase perforated Hall 485 alternating-current voltage sensor which is connected with a three-phase multifunctional power instrument display meter, so that the design of a current, voltage, power, frequency and power factor measuring and displaying device during the operation of the motor is realized, and the real-time monitoring and displaying of the operation current of the motor are realized.

Example 8

Based on the motor test detection apparatus described in embodiment 1, the motor both-end bearing end jump detection device 5 further includes:

measuring end jump (the device has this function) by the displacement sensor 5-1; a high-precision displacement sensor 5-1 (the stroke is 3mm; the repeatability precision is 0.01 mm) is additionally arranged to be connected with a PLC analog quantity channel, a PLC programmable controller 1-4 is programmed, real-time accurate displacement data is read, and displacement data detection numerical value display is manufactured on an HMI human-machine interface, so that the design of a motor bearing end jump detection device 5 can be realized, and the real-time monitoring and display of motor running bearing end jump are realized.

Measuring end jump (simultaneously, retest can be carried out) by dial indicator 5-2

The dial indicator 5-2 is arranged at a fixed position by adding the magnetic indicator frame, and the design of the device for detecting the shaft runout of the two ends of the motor during the operation is carried out by the dial indicator 5-2, so that the real-time monitoring and display of the bearing runout of the two ends of the motor during the operation are realized.

2. The application example is as follows:

the method comprises the steps of carrying out specific detection tests during power-on test operation of a motor after maintenance and maintenance, placing the motor after maintenance and maintenance on detection test equipment, connecting the motor with a three-phase power supply, fixing a temperature detection probe, fixing a motor bearing vibration detection patch, a motor shaft bounce detection part and the like, carrying out detection after the detection equipment is powered on, setting high, medium and low-speed operation time through the detection equipment, realizing real-time display of detection data of high, medium and low operation of the motor, and changing the original mode of manually carrying out motor tests. The detection efficiency is improved through the detection equipment.

3. Evidence of the relevant effects of the examples:

experiment of

The device is tested in the aspects of detecting current, voltage, motor temperature, motor bearing vibration, motor shaft bounce and the like, firstly, the precision of data during the operation of the motor is detected through the multifunctional meter, the operation current, the voltage and other data of the motor can be displayed through the multifunctional meter after verification, and meanwhile, the display precision also meets the detection standard.

And secondly, rechecking the temperature of the motor, manually detecting the temperature rise by using a temperature gun while displaying the temperature rise of the motor, and detecting whether the rechecking is full through a rechecking temperature rise detection part as a detection standard. And finally, detecting the bearing vibration and the jump of the motor by using a bearing vibration meter and a dial indicator 5-2, wherein the detection rechecking result also accords with the detection result.

Based on the embodiment of the utility model provides an above-mentioned motor test detection device that provides, the experimental action process of concrete motor is:

(1) The motor to be tested is fixed on the fixing frame;

(2) Connecting a main loop wire between the motor test detection equipment and the tested motor;

(3) The motor test detection device is energized.

(4) Firstly, a manual relay starts motor test detection equipment, and the motor is manually electrified to initially perform test running.

(5) After the manual relay is tested, the external detection device for temperature rise, jumping and vibration of the motor is installed and fixed, after the external detection device is installed, the manual MHI touch screen is simply tested in a manual forward and reverse low speed, medium speed and high speed mode, numerical values are observed, and if the numerical values are in a normal change interval.

(6) And then, automatic tests of automatic positive and negative low speed, medium speed and high speed in a set time are realized by designing automatic operation time of an automatic MHI touch screen, and after the tests are qualified, the equipment completes the tests, thereby proving that the maintenance and the repair of the motor are completed.

Experiments show that:

(1) According to the standard, the detection of the intelligent detection motor device is completed;

(2) An electrical inspection test safety protection device is added, so that the test data of the motor can be displayed and detected at any time;

(3) The maintenance precision and efficiency of the process equipment are improved;

(4) And the practical training equipment for inspection, test and learning is built.

(5) The targets were examined and are detailed in table 2.

TABLE 2

The above description is only for the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art should be covered by the protection scope of the present invention within the technical scope of the present invention, any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention.

Claims (10)

1. A motor test detection apparatus, characterized in that the motor test detection apparatus comprises:

the motor multi-speed control system (1) is used for manual relay control, manual screen control and automatic multi-speed control of the motor;

the temperature rise detection device (2) is connected with the motor multi-speed control system (1) and is used for monitoring and displaying the running temperature rise of the motor in real time;

the electric bearing machine vibration detection device (3) is connected with the monitored motor and is used for monitoring and displaying the bearing vibration detection in the running process of the motor in real time;

the multi-parameter detection device (4) is connected with the motor multi-speed control system (1) and is used for detecting and displaying the current, the voltage, the power, the frequency and the power factor of the motor;

and the motor bearing end jump detection device (5) is arranged on the front bearing and the rear bearing of the monitored motor and is used for monitoring and displaying the end jumps of the bearings at two running ends of the motor in real time.

2. The motor test detection device according to claim 1, wherein the motor multi-speed control system (1) comprises a main circuit (1-1), a motor manual relay control circuit (1-2), a motor manual HMI touch screen (1-3), and a PLC programmable controller (1-4);

the motor manual relay control circuit (1-2), the motor manual HMI touch screen (1-3) and the PLC programmable controller (1-4) are all connected with the main circuit (1-1) through signal lines.

3. The motor test detection device according to claim 2, wherein the motor manual relay control circuit (1-2) comprises electrical components including an earth leakage breaker (1-2-1), a contactor (1-2-2), a thermal relay (1-2-3) and a knob switch (1-2-4) of a control loop;

the residual current circuit breaker (1-2-1), the contactor (1-2-2), the thermal relay (1-2-3) and the knob switch (1-2-4) of the control loop are all connected with the main circuit (1-1) through signal lines.

4. The motor test detection device according to claim 2, characterized in that the motor manual HMI touch screen (1-3) is arranged to communicate with the PLC programmable controller (1-4) via a human-machine interface.

5. The motor test detection device according to claim 1, wherein the temperature rise detection device (2) comprises two groups of infrared probe type sensors connected with a high-precision intelligent temperature controller for real-time monitoring and displaying of the motor running temperature rise.

6. The motor test detection device according to claim 1, wherein the motor bearing machine vibration detection device (3) is connected with the PLC (1-4) by a vibration sensor for motor vibration detection and display.

7. The motor test detection device according to claim 1, wherein the multi-parameter detection device (4) is connected with a three-phase multifunctional power instrument display meter through a motor three-phase current, a voltage transformer and an output three-phase perforated Hall alternating voltage sensor to measure and display current, voltage, power, frequency and power factor when the motor runs.

8. The motor test detection apparatus according to claim 1, wherein the motor both-end bearing end-jump detection device (5) includes:

a displacement sensor (5-1) for detecting the end jump displacement of the motor bearing;

and a dial indicator (5-2) for displaying the jumping values of the two end shafts when the motor operates.

9. The motor test detection apparatus according to claim 1, wherein the temperature rise detection device (2) is 3.

10. The motor test detection apparatus according to claim 1, wherein the number of motor bearing end jump detection devices (5) is 2, and the two devices are respectively positioned at different front and rear bearing ends of the motor.

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