Remote monitoring device for hydraulic control valve

Abstract

The utility model belongs to the technical field of hydraulic control valves, and discloses a hydraulic control valve remote monitoring device which comprises a hydraulic valve body and an oil pipe on the hydraulic valve body. A mounting plate is fixedly arranged on the inner wall of the monitoring pipe; one side surface of the mounting plate is an arc surface, and the other side surface is a plane; the arc surface is attached to the inner wall of the monitoring pipe; the plane is provided with a light sensor through a fastener; a mounting hole is formed in the plane, an assembling hole is formed in the optical sensor, and a fastener penetrates through the assembling hole and is fastened in the mounting hole; the monitoring pipe is provided with a connecting line hole, a sealing element is arranged in the connecting line hole, and a connecting line of the optical sensor is installed in the connecting line hole through the sealing element. The optical sensor is installed on the oil pipe of the hydraulic valve body through the monitoring pipe, pollution is found in advance through online monitoring of the optical sensor on the inner wall of the monitoring pipe, the valve element of the hydraulic valve body is triggered to be closed through the executing mechanism, metal abrasive particles or impurities are prevented from entering valve element gaps, and the phenomenon that the valve is stuck is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic control valve technical field, concretely is hydraulic control valve remote monitoring device. BACKGROUND

[0002] Hydraulic valve is the control element of vital importance in hydraulic system, is widely used in engineering machinery, aerospace field and automation equipment, is mainly used for controlling the direction control, pressure control and flow control of liquid in hydraulic system, realizes the accurate control and efficient operation of mechanical equipment. However, metal abrasive or impurities can enter the gap between the valve core, and then the phenomenon of stuck valve appears. Online monitoring can detect pollution trend in advance and trigger early warning.

[0003] The related reference CN114879579A discloses a kind of electric valve remote fault monitoring system, including MCU, hydrogen sulfide sensor, hydrogen sensor, tension sensor, actuator;Wherein, tension sensor is connected with the A / D conversion interface of MCU by signal amplifier, hydrogen sulfide sensor, hydrogen sensor is respectively connected with the A / D conversion interface of MCU by respective signal transmitter, the D / A conversion interface of MCU is connected with the opening control port of actuator by voltage-to-current transducer, but metal abrasive or impurities cannot be monitored, and valve jamming can be affected. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of online monitoring, avoid metal abrasive or impurities to enter the gap between the valve core, avoid the phenomenon of stuck valve of hydraulic control valve remote monitoring device that appears.

[0005] In order to solve the above technical problems, the utility model provides hydraulic control valve remote monitoring device, including hydraulic valve body and oil pipe on hydraulic valve body;Monitoring pipe is installed on oil pipe, and mounting plate is fixedly arranged on the inner wall of monitoring pipe;One side of mounting plate is arc surface, and the other side is plane;Arc surface and the inner wall of monitoring pipe are pasted;Plane is installed optical sensor by fastener;Mounting hole is formed on plane, and assembly hole is formed on optical sensor, and fastener is fastened in mounting hole through assembly hole;Connection line hole is formed on monitoring pipe, and sealing element is arranged in connection line hole, and the connection line of optical sensor is installed in connection line hole through sealing element.

[0006] By adopting the above technical scheme, optical sensor is installed on the oil pipe of hydraulic valve body through monitoring pipe, and pollution is detected in advance by optical sensor on the inner wall of monitoring pipe online, and the valve core of hydraulic valve body is closed by actuator, to avoid metal abrasive or impurities entering the gap between the valve core, and avoid the phenomenon of stuck valve.

[0007] Preferably, damping pad is arranged between mounting plate and optical sensor.

[0008] By adopting the technical scheme, the shock pad is arranged between the mounting plate and the light sensor, so that the light sensor is prevented from loosening or being damaged due to vibration and pressure pulsation in the hydraulic environment.

[0009] Preferably, the sealing member is fluororubber.

[0010] By adopting the technical scheme, the sealing member is prevented from leaking due to aging in a long-term high-pressure and high-temperature environment.

[0011] Preferably, the mounting plate is further provided with a temperature sensor fixedly installed on one side.

[0012] By adopting the technical scheme, the temperature of the hydraulic oil is significantly increased when the hydraulic system is operated for a long time under high load, and the high temperature can cause the viscosity of the hydraulic oil to decrease, increase the leakage in the hydraulic system, and reduce the volumetric efficiency and working accuracy of the hydraulic system.

[0013] Preferably, the temperature sensor is installed on the mounting plate by a screw.

[0014] By adopting the technical scheme, the temperature sensor is installed by a screw, and the material is easy to obtain and the installation is simple.

[0015] Preferably, the hydraulic valve body, the light sensor, the temperature sensor and the actuator are electrically connected.

[0016] By adopting the technical scheme, the hydraulic valve body, the light sensor and the temperature sensor are controlled by the actuator, so that the automatic control of the hydraulic system is realized.

[0017] Preferably, the actuator is a PLC controller.

[0018] By adopting the technical scheme, the PLC controller has programmability. Users can adjust the control logic by writing or modifying programs without changing the hardware structure.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. The utility model installs the light sensor on the oil pipe of the hydraulic valve body through the monitoring pipe, and the light sensor on the inner wall of the monitoring pipe is used for online monitoring and early detection of pollution.

[0021] 2. The utility model discloses the shock pad between installation board and light sensor is provided. Through the above technical scheme, avoid the light sensor in hydraulic environment to receive vibration, pressure pulsation and looseness or damage.

[0022] 3. The utility model discloses the hydraulic system when long time high load operation, hydraulic oil temperature can be significantly raised, and temperature is too high and can lead to hydraulic oil viscosity drop, increase hydraulic system inner leakage, reduce hydraulic system's volumetric efficiency and work accuracy. Through the temperature sensor of installation board installation real time monitoring hydraulic oil temperature, ensure that the hydraulic system is in safe, stable temperature range operation, avoid the equipment failure of temperature anomaly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective drawing of the utility model embodiment 1 for the utility model embodiment 1;

[0024] Figure 2 It is the schematic diagram of monitoring pipe on oil pipe for the utility model embodiment 1 oil pipe;

[0025] Figure 3 It is the perspective drawing of the utility model embodiment 2 for the utility model embodiment 2;

[0026] Figure 4 It is the schematic diagram of monitoring pipe on oil pipe for the utility model embodiment 2 oil pipe.

[0027] Figure number: 1. Hydraulic valve body, 2. Oil pipe, 3. Actuator, 4. Monitoring pipe, 5. Installation board, 6. Fastener, 7. Light sensor, 8. Mounting hole, 9. Assembly hole, 10. Circular arc surface, 11. Connection line hole, 12. Sealing element, 13. Shock pad, 14. Temperature sensor, 15. Plane. DETAILED DESCRIPTION Embodiment 1

[0028] As Figure 1 , 2As shown, the hydraulic control valve remote monitoring device comprises a hydraulic valve body 1 and an oil pipe 2 installed on the hydraulic valve body 1; a monitoring pipe 4 is installed on the oil pipe 2, and an installation plate 5 is fixedly arranged on the inner wall of the monitoring pipe 4; one side of the installation plate 5 is a circular arc surface 10, and the other side is a plane 15; the circular arc surface 10 is attached to the inner wall of the monitoring pipe 4; the plane 15 is provided with a light sensor 7 through a fastener 6; the fastener 6 is a bolt or a screw. An installation hole 8 is formed in the plane 15, and an assembly hole 9 is formed in the light sensor 7; the fastener 6 is fastened in the installation hole 8 through the assembly hole 9; a connecting line hole 11 is formed in the monitoring pipe 4, and a sealing element 12 is arranged in the connecting line hole 11; and a connecting line of the light sensor 7 is installed in the connecting line hole 11 through the sealing element 12. In the present application, the light sensor 7 is installed on the oil pipe 2 of the hydraulic valve body 1 through the monitoring pipe 4, the light sensor 7 on the inner wall of the monitoring pipe 4 is used for online monitoring, the pollution is found in advance, the valve core of the hydraulic valve body 1 is closed through the actuator 3, the metal abrasive particles or impurities are prevented from entering the gap of the valve core, and the phenomenon of valve jamming is avoided.

[0029] As shown in Figure 2 A shock-absorbing pad 13 is arranged between the installation plate 5 and the light sensor 7 to prevent the light sensor 7 from being loosened or damaged due to vibration or pressure pulsation in the hydraulic environment.

[0030] The sealing element 12 is made of fluororubber to prevent the sealing element 12 from leaking due to aging in a long-term high-pressure and high-temperature environment.

[0031] A temperature sensor 14 is also fixedly installed on one side of the installation plate 5. When the hydraulic system is operated for a long time under high load, the temperature of the hydraulic oil will rise significantly, and the high temperature will cause the viscosity of the hydraulic oil to decrease, increase the leakage in the hydraulic system, and reduce the volumetric efficiency and working accuracy of the hydraulic system. The temperature sensor 14 fixed on the installation plate 5 is used for real-time monitoring of the temperature of the hydraulic oil, so that the hydraulic system can be operated in a safe and stable temperature range, and equipment failure caused by abnormal temperature is avoided.

[0032] The hydraulic valve body 1, the light sensor 7, the temperature sensor 14 and the actuator 3 are electrically connected. The hydraulic valve body 1, the light sensor 7 and the temperature sensor 14 are controlled by the actuator 3 to realize automatic control of the hydraulic system.

[0033] The actuator 3 is a PLC controller. The PLC controller has programmability. Users can adjust the control logic by writing or modifying programs without changing the hardware structure. Through the pre-written program, the operation of the monitoring device is automatically controlled, manual intervention is reduced, and production efficiency is improved.

[0034] The hydraulic valve body 1 adopts a hydraulic electromagnetic valve to control fluid flow through electromagnetic force. When the coil is energized, the iron core is acted on by the magnetic field force, and the valve core is pushed to move against the spring pressure.

[0035] When assembled, the mounting plate 5 is welded to the inner wall of the monitoring tube 4. The light sensor 7 is mounted on the mounting plate 5, and a shock pad 13 is placed between the mounting plate 5 and the light sensor 7. The monitoring tube 4 is fixed to the oil pipe 2 of the hydraulic valve body 1 through a flange, or can be welded or screwed. The connecting line of the sensor is passed out of the connecting line hole 11, and the connecting line of the sensor and the connecting line hole 11 are sealed with fluororubber. The connecting line of the hydraulic valve body 1, the connecting line of the light sensor 7, and the corresponding port of the PLC controller are connected. Through the online monitoring of the light sensor 7, pollution is detected in advance, and through the PLC controller, the valve core of the hydraulic valve body 1 is triggered to close, avoiding the entry of metal particles or impurities into the gap between the valve cores, avoiding the phenomenon of valve jamming, and improving the working efficiency of the hydraulic system. Example 2

[0036] As shown in Figure 3 , 4 , the temperature sensor 14 is also fixedly installed on the plane 15 of the mounting plate 5. When the hydraulic system is operated for a long time under high load, the temperature of the hydraulic oil will rise significantly, and excessive temperature will cause the viscosity of the hydraulic oil to decrease, increase the leakage in the hydraulic system, and reduce the volumetric efficiency and working accuracy of the hydraulic system. Through the real-time monitoring of the temperature sensor 14, the hydraulic system is ensured to operate within a safe and stable temperature range, avoiding equipment failure caused by abnormal temperature.

[0037] The temperature sensor 14 is installed on the mounting plate 5 by screws. The temperature sensor 14 is installed by screws, which is easy to obtain and convenient to install.

[0038] The hydraulic valve body 1, the light sensor 7, the temperature sensor 14, and the actuator 3 are electrically connected. The hydraulic valve body 1, the light sensor 7, and the temperature sensor 14 are controlled by the actuator 3, realizing the automatic control of the hydraulic system.

[0039] The actuator 3 is a PLC controller. The PLC controller has programmability. Users can adjust the control logic by writing or modifying programs without changing the hardware structure. Through the pre-written program, the operation of the monitoring device is automatically controlled, reducing manual intervention and improving production efficiency.

[0040] The hydraulic valve body 1 adopts a hydraulic electromagnetic valve, which controls fluid flow through electromagnetic force. When the coil is energized, the iron core is acted on by the magnetic field force, overcoming the spring pressure to push the valve core to move.

[0041] When assembled, the mounting plate 5 is welded to the inner wall of the monitoring tube 4. The light sensor 7 is mounted on the mounting plate 5, and a shock-absorbing pad 13 is provided between the mounting plate 5 and the light sensor 7. The temperature sensor 14 is also mounted on the mounting plate 5, and a shock-absorbing pad 13 is provided between the temperature sensor 14 and the mounting plate 5. The monitoring tube 4 can be fixed to the oil pipe 2 of the hydraulic valve body 1 by flanges, or can be welded or screwed. The connecting lines of the two sensors respectively pass through the respective connecting line holes 11, and the connecting line of the light sensor 7 and the connecting line hole 11 are sealed by fluorine rubber, and the connecting line of the temperature sensor 14 and the connecting line hole 11 are also sealed by fluorine rubber. The connecting lines of the hydraulic valve body 1, the connecting lines of the light sensor 7, the connecting lines of the temperature sensor 14 and the corresponding ports of the PLC controller are connected. The light sensor 7 on the inner wall of the monitoring tube 4 can detect pollution in advance, the temperature sensor 14 on the inner wall of the monitoring tube 4 can ensure that the hydraulic system operates in a safe and stable temperature range, avoid equipment failure caused by abnormal temperature, trigger the valve core of the hydraulic valve body 1 to close through the PLC controller, avoid metal particles or impurities from entering the gap between the valve cores, avoid the phenomenon of valve jamming, and improve the working efficiency of the hydraulic system.

[0042] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the embodiments of the utility model can be any deformation or modification without departing from the principle.

Claims

1. A remote monitoring device for a hydraulic control valve, comprising a hydraulic valve body (1) and a hydraulic valve body (1) on the oil pipe (2); characterized in that: The monitoring pipe (4) is installed on the oil pipe (2), and the mounting plate (5) is fixedly arranged on the inner wall of the monitoring pipe (4); one side of the mounting plate (5) is a circular arc surface (10), and the other side is a plane (15); the circular arc surface (10) is attached to the inner wall of the monitoring pipe (4); the plane (15) is provided with the light sensor (7) through the fastener (6); the mounting hole (8) is formed in the plane (15), the assembling hole (9) is arranged on the light sensor (7), and the fastener (6) is fastened in the mounting hole (8) through the assembling hole (9); the connecting line hole (11) is formed in the monitoring pipe (4), the sealing element (12) is arranged in the connecting line hole (11), and the connecting line of the light sensor (7) is arranged in the connecting line hole (11) through the sealing element (12).

2. The hydraulic control valve remote monitoring apparatus according to claim 1, characterized by: A shock pad (13) is arranged between the mounting plate (5) and the light sensor (7).

3. The hydraulic control valve remote monitoring apparatus according to claim 1, characterized by: The sealing element (12) is fluorine rubber.

4. The hydraulic control valve remote monitoring apparatus according to claim 1, characterized by: The temperature sensor (14) is further fixedly arranged on one side of the mounting plate (5).

5. The hydraulic control valve remote monitoring apparatus according to claim 4, characterized by: The temperature sensor (14) is arranged on the mounting plate (5) through a screw.

6. The hydraulic control valve remote monitoring apparatus according to claim 5, characterized by: The hydraulic valve body (1), the light sensor (7), the temperature sensor (14) and the actuating mechanism (3) are electrically connected.

7. The hydraulic control valve remote monitoring apparatus according to claim 6, characterized by: The actuating mechanism (3) is a PLC controller.

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