CN215524838U - Real-time monitoring and protecting system for hydraulic coupler - Google Patents
Real-time monitoring and protecting system for hydraulic coupler Download PDFInfo
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- CN215524838U CN215524838U CN202121587207.5U CN202121587207U CN215524838U CN 215524838 U CN215524838 U CN 215524838U CN 202121587207 U CN202121587207 U CN 202121587207U CN 215524838 U CN215524838 U CN 215524838U
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Abstract
The utility model provides a real-time monitoring and protecting system of a hydraulic coupler, which comprises an infrared temperature measuring device, a PLC (programmable logic controller), an acousto-optic early warning system and a cooling device, wherein when the temperature monitored by the infrared temperature measuring device reaches the upper limit of a set value, the PLC automatically starts the cooling device to cool the hydraulic coupler, and simultaneously starts the acousto-optic early warning system to respectively give an alarm and drive a motor to power off and stop to protect the hydraulic coupler; when the temperature monitored by the infrared temperature measurement device reaches the lower limit of a set value, the PLC automatically starts the hydraulic coupler to work, and meanwhile, the operation of the acousto-optic early warning system is stopped. The utility model improves the protection effect on the hydraulic coupler, prevents the hydraulic coupler from being damaged due to overhigh temperature, greatly reduces the power-off shutdown and cooling time of the hydraulic coupler by combining the action of the cooling device, reduces the manual waiting time by PLC intelligent control, is convenient for automatic control and effectively improves the working efficiency.
Description
Technical Field
The utility model relates to a hydraulic coupler, in particular to a real-time monitoring and protecting system of the hydraulic coupler.
Background
The hydraulic coupler is derived from a hydraulic torque converter without a guide wheel, has the function of 'torque conversion', and keeps other excellent functions of the torque converter, such as belt-loaded soft start, impact and torsional vibration absorption, good torque limit protection for a transmission system, improvement of the starting capability of an asynchronous motor, automatic balancing of the load of a power machine in multi-power parallel operation driving and the like, thereby having a wider market compared with the torque converter. The disadvantage is that when the overload is serious, the working temperature can rise greatly until the safety plug melts the liquid spray (self-contained normal protection), and the explosion can be caused under extreme conditions (such as the transmission ratio is less than zero, the safety plug fails, and the like)! In order to solve the problem of pain in the industry, the blowout prevention safety plug is provided at present, when low-melting alloy of the blowout prevention safety plug is melted, a collision rod is released to trigger a travel switch to perform sound and light alarm, but the alarm is only performed after the safety plug is melted, oil injection can be prevented, early warning cannot be performed, and the safety plug needs to be replaced when the safety plug is recovered to operate, for example, the hydraulic coupler overheat protection device and the repair method thereof with the application number of CN 201210307447.4.
At present, some companies develop a technology and a device for monitoring the operation condition of a hydraulic coupler in real time, that is, a plug-type sensor and a wireless signal transmission mode are adopted to monitor the operation temperature and pressure inside the hydraulic coupler in real time, and a safety plug on the hydraulic coupler is replaced by the plug-type sensor, for example: an intelligent fixed charging type hydraulic coupler with the application number of CN201910158694.4 is characterized in that a shell or a pump wheel is provided with a pressure sensor, a temperature sensor and a driving end rotating speed sensor, and a main shaft is provided with a driven end rotating speed sensor; signals of the sensors are respectively acquired and sent to the MCU for processing, then are respectively transmitted through the wireless transmitting module, and are transmitted to the electronic control unit after being received by the wireless receiving module, so that the real-time detection of the working condition of the hydraulic coupler is realized. However, causal analysis shows that the pressure is increased due to the temperature rise, other problems can be solved as long as the temperature is monitored in real time and the parameter is used for control, the pressure does not need to be monitored at all, a hydraulic coupler needs to be shut down and cooled down for protection due to overhigh temperature in the using process, equipment needs to be started again manually after the temperature is reduced, the operation time of the process is long, time delay is easily caused, and the production and processing efficiency is influenced.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a hydraulic coupler real-time monitoring and protecting system which is convenient for automatically controlling the power-off cooling protection of a hydraulic coupler, can automatically recover production, reduces the influence of high temperature on equipment and prolongs the service life of the equipment.
The technical scheme of the utility model is as follows: a real-time monitoring and protecting system for a hydraulic coupler comprises an infrared temperature measuring device, a PLC (programmable logic controller), an acousto-optic early warning system and a cooling device, wherein the infrared temperature measuring device, the acousto-optic early warning system and the cooling device are all controlled by the PLC; when the temperature monitored by the infrared temperature measurement device reaches the lower limit of a set value, the PLC automatically starts the hydraulic coupler to work, and meanwhile, the operation of the acousto-optic early warning system is stopped.
The utility model has the advantages that the temperature of the hydraulic coupler is detected in real time through the infrared temperature measuring device, the temperature information is fed back to the PLC, the PLC compares the temperature information with a set temperature value, when the temperature exceeds the upper limit of the set temperature, the PLC automatically stops the machine protection and starts the acousto-optic early warning system, when the lower limit of the set temperature is reached, the start of the hydraulic coupler is automatically controlled, the acousto-optic early warning system is stopped, the manual operation is effectively reduced, meanwhile, the hydraulic coupler can be protected to the maximum extent, the manual operation is reduced, the delay of production caused by the fact that the machine starting time is missed in the process of judging the machine stop of the hydraulic coupler is avoided, and the working efficiency and the use safety are effectively improved.
Further, the cooling device is a powerful fan or a refrigerating fan, and the cooling device is arranged above or on one side of the hydraulic coupler. The cooling device is used for improving the flow of gas around the hydraulic coupler, so that the temperature of the hydraulic coupler is reduced.
Further, cooling device includes fretwork form box and circulating water, and the box cover is established outside fluid coupling ware, and the box lower extreme is equipped with the cooling water import, and the upper end of box is equipped with the delivery port, the circulation circulating water in the box. The device is used for reducing the local temperature around the hydraulic coupler to realize heat exchange and reduce the temperature of the hydraulic coupler.
Further, the cooling rate of the cooling device to the hydraulic coupler is 0.2-3 ℃ per second. The cooling speed is convenient to guarantee, and the influence on the working efficiency of the equipment caused by frequent shutdown is avoided.
Further, the infrared temperature measuring device is an infrared temperature measuring instrument and is arranged outside the hydraulic coupler body.
Further, the infrared temperature measuring device measures 0.6-4 times per second. The infrared temperature measuring device is convenient to improve the detection effect and detection precision of the temperature of the hydraulic coupler.
Furthermore, the infrared temperature measuring device monitors the working temperature of the hydraulic coupler in real time and transmits temperature information to the PLC.
Further, the set value of the PLC comprises set temperature and temperature change rate, the temperature information comprises measured temperature and temperature change rate, and when the temperature or the change rate reaches the set value, the PLC controls the acousto-optic early warning system to alarm to start or stop, or implements power-off and shutdown of the driving motor to protect the hydraulic coupler, or controls the starting of the driving motor.
Further, the PLC controller sets the temperature and the temperature change rate; the set temperature is 75-150 ℃, and the temperature change rate is 0.5-2 ℃ per second.
Further, respectively carrying out early warning and alarm setting on the temperature and the temperature change rate; the sound and light early warning system comprises a buzzer and/or an alarm indicator lamp.
The utility model has the following characteristics:
1. the utility model effectively improves the protection effect on the hydraulic coupler, prevents the hydraulic coupler from being damaged due to overhigh temperature, greatly reduces the power-off shutdown and cooling time of the hydraulic coupler by combining the action of the cooling device, reduces the manual waiting time by PLC intelligent control, is convenient for automatic control and effectively improves the working efficiency.
2. Compared with the prior art that a temperature sensor is adopted, the temperature measuring device has the advantages that the temperature measuring range is larger, the measured value is more accurate, the response is quicker, the power is directly supplied by a power grid, the use is convenient, and a larger battery and frequent battery replacement are not needed.
3. The utility model can monitor the temperature in the hydraulic coupler in real time, judge the actual value and the set value through the PLC controller to realize acousto-optic alarm, monitor the working state of the hydraulic coupler in real time and reliably avoid the extreme conditions of liquid spraying, explosion and the like of the hydraulic coupler; according to the utility model, a pressure sensor is not required to be arranged, and the pressure in the hydraulic coupler can be effectively prevented from rising by measuring in real time and limiting the temperature rise through the infrared temperature measuring device.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a real-time monitoring and protecting system for a fluid coupling according to the present invention;
the system comprises 1-an infrared temperature measuring device, 2-a PLC (programmable logic controller), 3-an acousto-optic early warning system, 4-a driving motor, 5-a hydraulic coupler and 6-a cooling device.
Detailed Description
As shown in the attached drawings: a real-time monitoring and protecting system for a hydraulic coupler comprises an infrared temperature measuring device 1, a PLC (programmable logic controller) 2, an acousto-optic early warning system 3 and a cooling device 6, wherein the infrared temperature measuring device 1, the acousto-optic early warning system 3 and the cooling device 6 are all controlled by the PLC 2, when the temperature monitored by the infrared temperature measuring device reaches the upper limit of a set value, the PLC 2 automatically starts the cooling device 6 to implement cooling operation on the hydraulic coupler 5, and simultaneously starts the acousto-optic early warning system 3 to respectively give an alarm and drive a motor 4 to be powered off and shut down to protect the hydraulic coupler 5; when the temperature monitored by the infrared temperature measurement device reaches the lower limit of the set value, the PLC 2 automatically starts the hydraulic coupler 5 and stops the operation of the acousto-optic early warning system 3. Preferably, the infrared temperature measuring device 1 is used for monitoring the working temperature of the fluid coupling 5: the PLC 2 is used for analyzing, processing and monitoring the acquired temperature information by using the infrared temperature measuring device 1 and controlling the start and stop of the work of the acousto-optic early warning system 3 and the cooling device 6; and the sound and light early warning system 3 sends out alarm sound and/or light under the control of the PLC 2.
In the embodiment, the cooling device 6 is a strong fan or a refrigerating fan, and the cooling device 6 is installed above or on one side of the fluid coupling 5. For increasing the flow of gas around the fluid coupling 5, thereby achieving a temperature reduction of the fluid coupling 5. In this embodiment, a cooling fan is adopted, which facilitates improvement of the cooling effect on the fluid coupling 5.
In another embodiment, the cooling device 6 comprises a hollow box body and circulating water, the box body covers the outside of the fluid coupling 5, the lower end of the box body is provided with a cooling water inlet, the upper end of the box body is provided with a water outlet, and the circulating water circulates in the box body. The heat exchange is realized by reducing the local temperature around the fluid coupling 5, and the temperature of the fluid coupling 5 is reduced.
In the embodiment, the cooling rate of the cooling device 6 to the hydraulic coupler 5 is 2-3 ℃ per second. The cooling speed is convenient to guarantee, and the influence on the working efficiency of the equipment caused by frequent shutdown is avoided. Preferably, the infrared temperature measuring device 1 is an infrared thermometer and is arranged outside the fluid coupler 5. More preferably, the infrared temperature measuring device 1 measures 0.6 to 4 times per second. The detection effect and the detection precision of the infrared temperature measuring device on the temperature of the hydraulic coupler 5 are improved conveniently.
The infrared temperature measuring device 1 monitors the working temperature of the hydraulic coupler 5 in real time and transmits temperature information to the PLC 2. Preferably, the set value of the PLC 2 comprises set temperature and temperature change rate, the temperature information comprises measured temperature and temperature change rate, and when the temperature or the change rate reaches the set value, the PLC 2 controls the acousto-optic early warning system 3 to alarm and start or stop, or implements power-off and shutdown of the driving motor 4 to protect the hydraulic coupler 5, or controls the starting of the driving motor 4. More preferably, the PLC controller 2 sets the temperature and the temperature change rate; the set temperature is 75-150 ℃, the temperature change rate is 0.5-2 ℃ per second, namely the upper limit value of the set temperature is 150 ℃, and the lower limit value of the set temperature is 75 ℃.
In the embodiment, the acousto-optic early warning system 3 respectively carries out early warning and alarm setting on the temperature and the temperature change rate; the acousto-optic early warning system 3 comprises a buzzer and/or an alarm indicating lamp, preferably, if the buzzer and the alarm indicating lamp respond simultaneously, the buzzer and the alarm indicating lamp are optimal in parallel connection, when the buzzer and the alarm indicating lamp are connected in parallel, the PLC controller 2 is arranged on a main circuit, the buzzer and the alarm indicating lamp can also be connected with the PLC controller 2 independently, and the PLC controller 2 is provided with a plurality of normally closed and normally open output control end points.
In the using process, when the hydraulic coupler 5 is just started or starts to work from the lower temperature limit set by the PLC controller 2, in the process that the temperature of the hydraulic coupler 5 rises to the upper temperature limit set by the PLC controller 2, when the change rate of the temperature rise is more than 2 ℃ per second, the PLC controller 2 controls the acousto-optic early warning system 3 to start, and the buzzer and/or the alarm indicator lamp work to prompt an operator; and when the temperature of the hydraulic coupler 5 is reduced from the upper limit to the lower limit, the change rate of the temperature reduction has no influence on the acousto-optic early warning system 3, and the work of the acousto-optic early warning system is not triggered.
According to the utility model, the temperature of the hydraulic coupler 5 is detected in real time through the infrared temperature measuring device, the temperature information is fed back to the PLC 2, the PLC 2 compares the temperature information with a set temperature value, when the temperature exceeds the upper limit of the set temperature, the PLC 2 automatically carries out shutdown protection, the acousto-optic early warning system 3 is started, the cooling device is started to cool the coupler, when the lower limit of the set temperature is reached, the start of the hydraulic coupler 5 is automatically controlled, the acousto-optic early warning system 3 and the cooling device are stopped, the manual operation is effectively reduced, meanwhile, the hydraulic coupler 5 can be protected to the maximum extent, meanwhile, the manual operation is reduced, the phenomenon that the production is delayed due to the fact that the start-up time is missed in the shutdown process of the hydraulic coupler 5 is avoided, and the working efficiency and the use safety are effectively improved.
The above description is of the preferred embodiment of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any changes and modifications based on the equivalent changes and simple substitutions of the technical solutions of the present invention are within the protection scope of the present invention without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic coupler real-time supervision protection system, includes infrared temperature measuring device, PLC controller, reputation early warning system and cooling device, infrared temperature measuring device, reputation early warning system and cooling device all receive the control of PLC controller, its characterized in that: when the temperature monitored by the infrared temperature measurement device reaches the upper limit of a set value, the PLC automatically starts the cooling device to cool the hydraulic coupler, and simultaneously starts the acousto-optic early warning system to respectively give an alarm and drive the motor to power off and stop to protect the hydraulic coupler; when the temperature monitored by the infrared temperature measurement device reaches the lower limit of a set value, the PLC automatically starts the hydraulic coupler to work, and simultaneously stops the operation of the acousto-optic early warning system; the cooling device is a powerful fan or a refrigerating fan, and is arranged above or on one side of the hydraulic coupler.
2. The fluid coupling real-time monitoring protection system according to claim 1, wherein: the cooling device comprises a hollow box body and circulating water, the box body is covered outside the hydraulic coupler, a cooling water inlet is formed in the lower end of the box body, a water outlet is formed in the upper end of the box body, and the circulating water circulates in the box body.
3. The fluid coupling real-time monitoring protection system according to claim 1 or 2, characterized in that: the cooling rate of the cooling device to the hydraulic coupler is 0.2-3 ℃ per second.
4. The fluid coupling real-time monitoring protection system according to claim 1, wherein: the infrared temperature measuring device is an infrared temperature measuring instrument and is arranged outside the hydraulic coupler body.
5. The fluid coupling real-time monitoring protection system according to claim 4, wherein: the infrared temperature measuring device measures 0.6-4 times per second.
6. The fluid coupling real-time monitoring protection system according to claim 5, wherein: the infrared temperature measuring device monitors the working temperature of the hydraulic coupler in real time and transmits temperature information to the PLC.
7. The fluid coupling real-time monitoring protection system according to claim 6, wherein: the PLC controller is used for controlling the acousto-optic early warning system to alarm and start or stop when the temperature or the change rate of the temperature reaches the set value, or protecting the hydraulic coupler by powering off and stopping the driving motor or controlling the driving motor to start.
8. The fluid coupling real-time monitoring protection system according to claim 7, wherein: the PLC controller sets the temperature and the temperature change rate; the set temperature is 75-150 ℃, and the temperature change rate is 0.5-2 ℃ per second.
9. The fluid coupling real-time monitoring protection system according to claim 8, wherein: setting early warning and alarming for temperature and temperature change rate; the sound and light early warning system comprises a buzzer and/or an alarm indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121587207.5U CN215524838U (en) | 2021-07-13 | 2021-07-13 | Real-time monitoring and protecting system for hydraulic coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121587207.5U CN215524838U (en) | 2021-07-13 | 2021-07-13 | Real-time monitoring and protecting system for hydraulic coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215524838U true CN215524838U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121587207.5U Active CN215524838U (en) | 2021-07-13 | 2021-07-13 | Real-time monitoring and protecting system for hydraulic coupler |
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| Country | Link |
|---|---|
| CN (1) | CN215524838U (en) |
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2021
- 2021-07-13 CN CN202121587207.5U patent/CN215524838U/en active Active
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