Speed reducer bearing fault monitoring device

Abstract

The utility model relates to a speed reducer bearing fault monitoring device, which comprises a speed reducer, a bearing, an output shaft, a gear, a power supply circuit, a micro camera, a temperature measuring resistor, a single chip microcomputer and a power supply circuit, the temperature measuring resistor is arranged on the outer side of the bearing, and the micro camera is arranged on the top of the bearing and monitors the height of the bearing and the height of the gear simultaneously. The micro camera and the temperature measuring resistor are connected to an IO pin of the single-chip microcomputer, and the power supply circuit is connected with a power supply pin of the single-chip microcomputer. The working state of the bearing can be monitored in real time through temperature monitoring, the problems of lubrication, abrasion and the like of the bearing can be monitored at any time through the tiny camera, comprehensive monitoring of the bearing of the speed reducer is achieved, maintenance is conducted in advance, accidents are avoided, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing monitoring, in particular to a speed reducer bearing fault monitoring device. Background Art

[0002] During the daily production process of the rolling mill reducer bearings in the steel rolling production line, the bearing wear and breakage problems often occur. The relevant inspection of the bearing operation status can only be carried out by testing its temperature during the weekly scheduled maintenance. During the annual maintenance, it is disassembled and checked for the bearing status. There is no online monitoring data. Due to the blockage of the bearing lubrication pipeline, the oil circuit is not smooth when the ambient temperature is too low in winter, and the impurities in the lubrication system, the bearing wear problems often occur. If the bearing has problems, there is a hidden danger of stopping the production line. The speed of the 1st section shaft bearing of the rolling mill reducer in the middle rod area is relatively high, which is 1000-1500rpm / min. The probability of wear and tear is relatively high. If In the event of a bearing wear accident caused by excessive bearing wear or poor lubrication, the reducer needs to be disassembled offline and the damaged bearing needs to be replaced. The processing time is relatively long, generally 36 to 48 hours. The accident has a great impact on the production of the steel rolling production line. Inspection personnel cannot effectively prevent such accidents through regular maintenance and inspection. The various reasons for the above bearings will cause the bearing damage process to cause the bearing temperature to rise. The real-time bearing temperature can be monitored and an alarm can be set to prompt the operator, reflect the bearing status in a timely manner, and quickly reflect the reducer lubrication system problems to reduce the probability of bearing wear. Summary of the invention

[0003] The utility model provides a speed reducer bearing fault monitoring device, which can not only monitor the bearing working status in real time through temperature monitoring, but also monitor the lubrication, wear and other problems of the bearing at any time through a micro camera, thereby realizing comprehensive monitoring of the speed reducer bearing, performing maintenance in advance to avoid accidents, and reducing maintenance time and cost.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A reducer bearing fault monitoring device comprises a reducer, a bearing, an output shaft and a gear, wherein the gear is arranged in the reducer, and the gear is connected to the output shaft through the bearing. The device also comprises a power supply circuit, a micro camera, a temperature measuring resistor, a single-chip microcomputer and a power supply circuit, wherein the temperature measuring resistor is arranged on the top of the bearing, the micro camera is arranged on the side of the bearing to simultaneously monitor the height of the bearing and the gear, the micro camera and the temperature measuring resistor are connected to the IO pin of the single-chip microcomputer, and the power supply circuit is connected to the power pin of the single-chip microcomputer.

[0006] Furthermore, it also includes a camera mounting seat, which is arranged on the side of the bearing. The camera mounting seat includes a support rod and a top cover. The top cover is arranged on the top of the support rod and forms an acute angle with the support rod. The micro camera is arranged on the top cover inside the acute angle set by the support rod and the top cover.

[0007] Furthermore, the temperature measuring resistor is a bearing thermal resistor.

[0008] Furthermore, the power supply circuit includes an inductor, a resistor and a capacitor, the resistor and the inductor are connected in parallel, the two capacitors are connected in parallel, and the two parallel circuits are connected in series to provide a 3.3V power supply.

[0009] Furthermore, the single-chip microcomputer chip includes an AT89C51 chip and a USB chip, the communication port of the AT89C51 chip is connected to the USB chip, the USB chip is connected to the communication port of the micro camera, the output pin of the AT89C51 chip is connected to a series circuit of a resistor and an indicator light, the digital output pin is connected to an audible and visual alarm, the reset pin is connected to a parallel circuit of a capacitor and a resistor and then grounded, and the analog port of the AT89C51 chip is connected to a temperature measuring resistor signal line.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1) Monitor the temperature of the bearing in real time through the temperature measuring resistor, so as to monitor the operating status of the bearing;

[0012] 2) Through the connection between the micro camera and the single-chip microcomputer, the lubrication and wear of the reducer bearing are comprehensively and accurately monitored and alarmed;

[0013] 3) It realizes real-time status monitoring of reducer bearings, provides early warning for maintenance, avoids accidents, reduces maintenance time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the power supply circuit structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the single chip microcomputer of the utility model.

[0017] In the figure: 1. Reducer 2. Bearing 3. Output shaft 4. Gear 5. Micro camera 6. Temperature measuring resistor 7. Support rod 8. Top cover DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0019] See Figure 1 , is a schematic diagram of the structure of the utility model. The utility model is a reducer bearing fault monitoring device, comprising a reducer 1, a bearing 2, an output shaft 3 and a gear 4, wherein the gear 4 is arranged in the reducer 1, and the gear 4 is connected to the output shaft 3 through the bearing 2, and also comprises a power supply circuit, a micro camera 5, a temperature measuring resistor 6, a single chip microcomputer and a power supply circuit, wherein the temperature measuring resistor 6 adopts a bearing thermal resistor and is arranged on the top of the bearing 2, and a camera mounting seat is arranged on the side of the bearing 2 to simultaneously monitor the height of the bearing 2 and the gear 4, wherein the camera mounting seat comprises a support rod 7 and a top cover 8, wherein the top cover 8 is arranged on the top of the support rod 7 and forms an acute angle with the support rod 7, wherein the micro camera 5 is arranged at the top cover 8 within the acute angle set by the support rod 7 and the top cover 8, and the top cover 8 of the camera prevents the camera lens from being blocked by lubricating oil within the maximum range; the communication port of the micro camera 5 is connected to the USB chip and then to the single chip microcomputer, the temperature measuring resistor 6 is connected to the analog input pin of the single chip microcomputer, and the power supply circuit is connected to the power pin of the single chip microcomputer.

[0020] See Figure 2 The power supply circuit includes an inductor L1, a resistor R3 and capacitors C3 and C4. The resistor R3 is connected in parallel with the inductor L1, and the two capacitors C3 and C4 are connected in parallel. The two parallel circuits are then connected in series to provide a 3.3V power supply.

[0021] See Figure 3 The single-chip microcomputer chip includes an AT89C51 chip and a USB chip. The communication port of the AT89C51 chip is connected to the USB chip. The USB chip adopts CH340T. The sending pin TXD and the receiving pin RXD of the USB chip are connected to the P3.0 and P3.1 pins of the AT89C51 chip. The UD+ and UD- pins of the USB chip are connected to the communication port of the micro camera 5. The output pin P1.7 of the AT89C51 chip is connected to the series circuit of the resistor R1 and the indicator light D1. The digital output pin P0.0 is connected to the sound and light alarm. The reset pin RST is connected to the parallel circuit of the capacitor C1 and the resistor R2 and then grounded. Any pin of the analog port P2.0~P2.7 of the AT89C51 chip is connected to the signal line of the temperature measuring resistor 6, and the power pin VCC is connected to the output power supply 3.3V of the power supply circuit.

[0022] Working principle: The bearing thermal resistor measures the temperature of a section of the bearing 2 shaft, and the micro camera 5 captures the operation of the bearing 2 and the wear status of the gear 4. The temperature data of the bearing 2 thermal resistor and the image data of the camera are transmitted to the AT89C51 chip of the single-chip computer for processing. Once the bearing 2 is poorly lubricated, the bearing 2 is stuck, or the gear 4 is worn, the AT89C51 chip matches the real-time uploaded temperature data to issue an audible and visual alarm to remind whether to perform maintenance on the bearing 2 of the reducer 1.

[0023] The above embodiments are implemented based on the technical solution of the utility model, and detailed implementation methods and specific operation processes are given, but the protection scope of the utility model is not limited to the above embodiments. The methods used in the above embodiments are conventional methods unless otherwise specified.

Claims

1. A speed reducer bearing fault monitoring device, comprising a speed reducer, a bearing, an output shaft and a gear, wherein the gear is arranged in the speed reducer, and the gear is connected to the output shaft through a bearing, and is characterized in that: It also includes a power supply circuit, a micro camera, a temperature measuring resistor, a single-chip microcomputer and a power supply circuit. The temperature measuring resistor is arranged on the top of the bearing, and the micro camera is arranged on the side of the bearing to simultaneously monitor the height of the bearing and the gear. The micro camera and the temperature measuring resistor are connected to the IO pin of the single-chip microcomputer, and the power supply circuit is connected to the power pin of the single-chip microcomputer.

2. A speed reducer bearing fault monitoring device according to claim 1, characterized in that: It also includes a camera mounting seat, which is arranged on the side of the bearing. The camera mounting seat includes a support rod and a top cover. The top cover is arranged on the top of the support rod and forms an acute angle with the support rod. The micro camera is arranged at the top cover inside the acute angle set by the support rod and the top cover.

3. A speed reducer bearing fault monitoring device according to claim 1, characterized in that: The temperature measuring resistor is a bearing thermal resistor.

4. A speed reducer bearing fault monitoring device according to claim 1, characterized in that: The power supply circuit includes an inductor, a resistor and a capacitor. The resistor is connected in parallel with the inductor, the two capacitors are connected in parallel, and the two parallel circuits are connected in series to provide a 3.3V power supply.

5. A speed reducer bearing fault monitoring device according to claim 1, characterized in that: The single-chip microcomputer chip comprises an AT89C51 chip and a USB chip, the communication port of the AT89C51 chip is connected to the USB chip, the USB chip is connected to the communication port of the micro camera, the output pin of the AT89C51 chip is connected to a series circuit of a resistor and an indicator light, the digital output pin is connected to an audible and visual alarm, the reset pin is connected to a parallel circuit of a capacitor and a resistor and then grounded, and the analog port of the AT89C51 chip is connected to a temperature measuring resistor signal line.

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