CN209460373U - A motor fault judgment device - Google Patents

Abstract

The utility model provides a motor fault judging device, which is characterized in that it is equipped with a controller MCU, a data acquisition and processing module, a wireless communication module and a hand-held terminal for monitoring personnel, and does not need to punch holes on the motor body to install sensors. The current, voltage, speed, temperature, noise and vibration parameters of the motor can be monitored. The current and voltage parameters are obtained from the cables connecting the motor and the power distribution cabinet through transformers; the speed parameters are collected by non-contact photoelectric sensors or Hall sensors; the temperature parameters are collected by non-contact infrared temperature sensors; noise and vibration sensors are installed in the In the detection box, the vibration of the box and the noise in the box are corrected by the software algorithm as the basis for fault judgment; when abnormal parameters are found, no matter where the monitoring personnel are, they can receive the alarm information in time and implement it immediately Troubleshooting to avoid motor failures causing production or safety accidents.

Description

A motor fault judgment device

technical field

The utility model belongs to the technical field of equipment on-line monitoring, relates to parameter monitoring in the running process of a motor, and is used for preventing motor faults, in particular to a motor fault judging device.

Background technique

Motor failure not only affects industrial production, but also easily causes accidents such as fire and even endangers personal safety. Therefore, motor failure monitoring is particularly important. The parameters related to motor faults are: current, voltage, speed, temperature, noise and vibration, etc. At present, the current and voltage of the motor are usually monitored by the electric meter installed in the power distribution cabinet, and the monitoring of speed, temperature, noise and vibration is usually done by drilling holes on the motor machine to install the sensing device. The installation of different types of motor sensing devices The location and method are different, the construction is very inconvenient, and the performance of the motor is easily affected by drilling holes on the motor machine; the monitoring personnel need to go to the site to check the monitoring parameters, the number of motors in the production enterprise is large, the models are different, and the distribution is usually very Scattered, the work of the monitoring personnel is very difficult.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a motor fault judging device, which can monitor the current, voltage, speed, temperature, noise and vibration parameters of the motor without drilling holes on the motor body to install sensors; In addition, when abnormal parameters are found, monitoring personnel can receive alarm information in time to prevent motor failure from causing production or safety accidents.

The purpose of this utility model is achieved by the following technical solutions:

A motor failure determination device, comprising: a temperature sensor, a rotational speed sensor, and a vibration sensor, and is characterized in that it also includes: a noise sensor, a controller MCU, a data acquisition and processing module, a wireless communication module, and a handheld terminal for monitoring personnel; The controller MCU, temperature sensor, vibration sensor, noise sensor, data acquisition and processing module and wireless communication module are all arranged in a box, and the box is fixed on the shell of the motor with buckles; the temperature sensor is a non-contact Infrared temperature sensor; the speed sensor is a non-contact photoelectric sensor or Hall sensor; the voltage and current parameters of the motor are obtained from the cable connected between the motor and the power distribution cabinet with a voltage transformer and a current transformer, The working power supply of the motor field parameter monitoring device is also obtained from the distribution line of the motor by the voltage transformer; the output terminals of the various sensors and transformers are connected to the data acquisition and processing module; the data acquisition and processing module and the wireless communication module All are connected with the controller MCU; the handheld terminal receives information through the wireless communication module.

Improvement to the above technical solution: the wireless communication module of the on-site motor parameter monitoring device is a GSM communication module, and is equipped with an antenna, and the antenna is installed on the box.

A further improvement to the above technical solution: the on-site motor parameter monitoring device is also provided with an alarm indicator light, which is connected to the controller MCU and installed on the casing of the box with a pole.

A further improvement to the above technical solution: the handheld terminal of the monitoring personnel is a mobile phone.

A further improvement to the above technical solution: the infrared temperature sensor is installed in the box, and a through hole is opened on the wall adjacent to the box and the motor, and the temperature sensing end of the infrared temperature sensor extends out of the through hole and faces the motor.

A further improvement to the above technical solution: the signal receiving end of the rotational speed sensor is fixed on the box with a telescopic strut, and the sensing end of the rotational speed sensor is pasted on the motor shaft.

A further improvement to the above technical solution: a display screen is also provided on the box, and the display screen is connected to the controller MCU.

Advantage and positive effect of the present utility model are:

1. The motor fault judging device of this utility model adopts an integrated structure and a non-invasive sensing method, which avoids the impact of punching holes on the motor body on the performance of the motor, and can adapt to various motors, with a compact structure and easy installation; monitoring parameters Comprehensive and viewable on the display.

2. When the motor fault judging device of the utility model finds abnormal parameters, no matter where the monitoring personnel are, the wireless communication module can send alarm information to the handheld terminal of the monitoring personnel in time, so that the monitoring personnel can implement troubleshooting at the first time, avoiding Motor failures lead to production or safety accidents.

Description of drawings

Fig. 1 is a structural schematic diagram of a motor fault judging device of the present invention.

The labels in the figure are: 1-motor, 1.1-motor distribution line, 2-motor fault determination device, 2.1-cabinet, 2.2-antenna, 2.3-speed sensor, 2.31-telescopic support rod, 2.32-speed sensing end, 2.4 - buckle, 2.5- temperature sensing terminal, 2.6- voltage transformer, 2.7- current transformer, 2.8- display screen, 2.9- alarm light, 3- handheld terminal for monitoring personnel.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, an embodiment of a motor failure judging device of the present invention includes: a temperature sensor, a rotational speed sensor, a vibration sensor, and also includes: a noise sensor, a controller MCU, a data acquisition and processing module, a wireless communication module and monitoring personnel The handheld terminal 3; the controller MCU, temperature sensor, vibration sensor, noise sensor, data acquisition and processing module and wireless communication module are all arranged in a box body 2.1, and the box body 2.1 is fixed on the motor 1 with a buckle 2.4 on the casing.

Further, the above-mentioned shock sensor and noise sensor are installed in the box body 2.1, and the vibration of the box body 2.1 and the noise in the box body 2.1 are corrected by a software algorithm as a basis for fault judgment;

The above-mentioned temperature sensor is a non-contact infrared temperature sensor, and a through hole is opened on the wall adjacent to the motor of the box body 2.1, and the temperature sensing end 2.5 of the infrared temperature sensor extends out of the through hole and faces the motor 1.

The above-mentioned speed sensor 2.3 is a non-contact photoelectric sensor or Hall sensor, and its signal receiving end is fixed on the box body 2.1 with a telescopic strut 2.31, and the sensing end 2.32 of the speed sensor 2.3 is pasted on the motor shaft.

The above-mentioned voltage and current parameters of the motor are obtained from the cable 1.1 connecting the motor to the power distribution cabinet with the voltage transformer 2.6 and the current transformer 2.7, and the working power of the motor field parameter monitoring device 2 is also obtained from the power distribution of the motor by the voltage transformer. Get it online.

The sensing devices for the above-mentioned operating parameters of the motors are all non-invasive, which avoids punching holes in the motor 1 .

The above-mentioned sensors (including temperature sensor, vibration sensor, noise sensor, speed sensor 2.3) and the output terminals of the transformers are connected to the data acquisition and processing module; the data acquisition and processing module compares the monitored operating parameters of the motor with the set Comparing the fault value, when a parameter exceeds the standard to the fault value, an alarm is sent, and the alarm information is sent to the handheld terminal 3 of the monitoring personnel through the wireless communication module.

In the embodiment shown in FIG. 1 , a display screen 2.8 and an alarm indicator light 2.9 are also provided on the box body 2.1; both the display screen 2.8 and the alarm indicator light 2.9 are connected to the controller MCU. When a fault occurs, the controller MCU displays the fault parameters on the display screen 2.8, and at the same time lights up the alarm display lamp 2.9, so that the monitoring personnel can find out and deal with the fault in time.

In actual implementation, the wireless communication module can use a GSM communication module. In order to ensure reliable wireless communication, the GSM communication module is provided with an antenna 2.2, and the antenna 2.2 is installed on the box body 2.1. Each real-time parameter can also be inquired on the said display screen 2.8.

The above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art may make changes, modifications, additions or replacements within the essential scope of the present utility model. It should belong to the protection scope of utility model.

Claims (10)

1. A motor failure determination device, comprising: a temperature sensor, a rotating speed sensor, a shock sensor, characterized in that, also comprising: a noise sensor, a controller MCU, a data acquisition and processing module, a wireless communication module and a handheld terminal of a monitor; The controller MCU, temperature sensor, vibration sensor, noise sensor, data acquisition and processing module and wireless communication module are all arranged in a box, and the box is fixed on the shell of the motor with buckles; the temperature sensor is The non-contact infrared temperature sensor; the speed sensor is a non-contact photoelectric sensor or Hall sensor; the voltage and current parameters of the motor are obtained from the cables connected to the motor and the power distribution cabinet by voltage transformers and current transformers. acquisition, the working power of the motor site parameter monitoring device is also obtained from the distribution line of the motor by the voltage transformer; the output terminals of the various sensors and transformers are connected to the data acquisition and processing module; the data acquisition and processing module and the wireless The communication modules are all connected with the controller MCU; the handheld terminal receives information through the wireless communication module. 2. according to the described motor fault judgment device of claim 1, it is characterized in that, the wireless communication module of described motor site parameter monitoring device is a GSM communication module, and is equipped with antenna, and described antenna is installed on the described casing . 3. according to claim 1 or 2 described motor failure judging devices, it is characterized in that, described motor field parameter monitoring device is also provided with alarm display lamp, and described alarm display lamp is connected to described controller MCU, and uses The pole is installed on the outer shell of the box. 4. The motor fault judging device according to claim 1 or 2, wherein the hand-held terminal of the monitoring personnel is a mobile phone. 5. according to claim 1 or 2 described motor failure judging devices, it is characterized in that, described infrared temperature sensor is installed in described casing, has a through hole on the wall adjacent to described casing and motor, The temperature sensing end of the infrared temperature sensor protrudes from the through hole and faces the motor. 6. The motor fault judging device according to claim 1 or 2, wherein the signal receiving end of the rotational speed sensor is fixed on the casing by a telescopic strut, and the sensing end of the rotational speed sensor is pasted on the motor shaft. 7. The motor fault judging device according to claim 5, wherein the signal receiving end of the rotational speed sensor is fixed on the casing by a telescopic strut, and the sensing end of the rotational speed sensor is pasted on the motor shaft. 8. The motor fault judging device according to claim 1 or 2, characterized in that: a display screen is also provided on the box, and the display screen is connected to the controller MCU. 9. The motor failure judging device according to claim 3, characterized in that: a display screen is also provided on the box body, and the display screen is connected to the controller MCU. 10. The motor failure judging device according to claim 7, characterized in that: a display screen is also provided on the box body, and the display screen is connected to the controller MCU.