CN116557381B - Fault detection device based on hydraulic system - Google Patents
Fault detection device based on hydraulic system Download PDFInfo
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- CN116557381B CN116557381B CN202310536357.0A CN202310536357A CN116557381B CN 116557381 B CN116557381 B CN 116557381B CN 202310536357 A CN202310536357 A CN 202310536357A CN 116557381 B CN116557381 B CN 116557381B
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- 238000001514 detection method Methods 0.000 title claims abstract description 74
- 239000003921 oil Substances 0.000 claims abstract description 88
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims description 41
- 238000005202 decontamination Methods 0.000 claims description 19
- 230000003588 decontaminative effect Effects 0.000 claims description 19
- 239000003344 environmental pollutant Substances 0.000 claims description 19
- 231100000719 pollutant Toxicity 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000110 cooling liquid Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The application discloses a fault detection device based on a hydraulic system, which relates to the technical field of fault detection and comprises a transverse rail positioned at the bottom end of a box cover, a moving device sliding on the transverse rail, a telescopic rod positioned at the bottom end of the moving device, a mounting seat hinged with the bottom end of the telescopic rod, a sensor assembly positioned at the bottom end of the mounting seat and inner rails positioned at two ends of the inner wall of a box body, wherein connecting rods are arranged at two ends of the mounting seat, and sliding seats are rotatably arranged at the tail ends of the connecting rods and slide on the inner rails. According to the application, on the basis of the structure of the hydraulic oil tank of the existing hydraulic system, the installation seat drives the sensor assembly to move along the track of the inner rail in the tank body through the arrangement of the moving device, the installation seat, the connecting rod and the inner rail, so that the sensor assembly can obtain data information of different positions in the oil tank, the arrangement of the sensor is reduced, and the data diversity and accuracy of the sensor are increased.
Description
Technical Field
The application relates to the technical field of fault detection, in particular to a fault detection device based on a hydraulic system.
Background
The hydraulic system consists of five parts, namely a power element (hydraulic pump), an actuating element (hydraulic cylinder and hydraulic motor), a control element (various hydraulic valves), an auxiliary element (accessory) and hydraulic oil. Because each element of the hydraulic equipment and working oil are operated in a sealed oil way, the stability of the hydraulic oil is critical, and in the operation process of a hydraulic system, the hydraulic oil of the system needs to be ensured not to be polluted and leaked, and the temperature of the working oil needs to be not more than 50 ℃ and not to be lower than 20 ℃.
In order to realize intelligent fault detection of hydraulic oil, a sensor for collecting liquid level, temperature and pollutants is generally arranged in an oil tank in a hydraulic system, and in the working process of the hydraulic system, the sensor collects data information of corresponding parameters of the oil tank in real time and compares the collected data information with a preset threshold value, and fault early warning is carried out when faults occur. However, in the traditional fault detection of the oil tank of the hydraulic system, the temperature and pollutant sensors are fixedly arranged at a certain position in the oil tank, as shown in fig. 1, the temperature and pollutant of hydraulic oil in the oil tank are not uniform, the data of different positions are different, the traditional collected data information has certain inaccuracy, and the traditional fault detection device only can perform fault early warning and cannot process in real time when detecting the temperature fault; if a plurality of groups of sensors are arranged, on one hand, the risk of leakage and pollution is increased, and on the other hand, the replacement cost is too high because the sensors are soaked in hydraulic oil for a long time.
Disclosure of Invention
The application aims to provide a fault detection device based on a hydraulic system, which solves the problems existing in the background technology.
The application realizes the above purpose through the following technical scheme:
the utility model provides a fault detection device based on hydraulic system, hydraulic system includes the oil tank, the oil tank includes the box, the case lid, be located oil suction pipe and the oil return pipe on the case lid and be located the oil drain valve of box bottom, oil suction pipe and oil return pipe all extend to the box in be close to the bottom position, be equipped with first folded plate and the second folded plate of mutual crisscross in the oil tank, first folded plate is located and is close to oil suction pipe and towards one side of oil return pipe, the upper end and the case lid of first folded plate do not contact and surpass the hydraulic oil liquid level, the second folded plate is located and is close to oil return pipe and towards one side of oil suction pipe, the bottom and the box bottom fixed connection of second folded plate, its characterized in that:
the fault detection device comprises a transverse rail positioned at the bottom end of a box cover, a moving device sliding on the transverse rail, a telescopic rod positioned at the bottom end of the moving device, a mounting seat hinged with the bottom end of the telescopic rod, a sensor assembly positioned at the bottom end of the mounting seat and inner rails positioned at two ends of the inner wall of the box body, wherein connecting rods are arranged at two ends of the mounting seat, the tail ends of the connecting rods are rotatably provided with sliding seats, and the sliding seats slide on the inner rails; the inner rail is in a bent shape, one end of the inner rail is positioned below the side of the first folded plate, the other end of the inner rail penetrates through the second folded plate and is positioned at a position close to the pipe orifice of the oil return pipe, and one top end of the inner rail is positioned above the second folded plate;
when fault detection is carried out, the moving device drives the mounting seat and the sensor assembly to transversely move, and meanwhile, the two ends of the mounting seat are limited by the bent inner rail through the connecting rod, so that the mounting seat drives the sensor assembly to move along the track of the inner rail in the tank body, and the sensor assembly can obtain data information of different positions in the oil tank.
A further improvement is that the sensor assembly includes a temperature sensor and a contaminant sensor.
The inner rail is in a fold line bending shape and is composed of three parts which are integrally connected, the first part and the third part are in an inclined straight line shape, the first part and the third part are connected through an arc-shaped second part, the inclined bottom end of the first part is positioned below the side of the first folding plate, the inclined high end of the first part is positioned above the side of the second folding plate, the inclined high end of the third part is positioned above the side of the second folding plate, the inclined bottom end of the third part is positioned at a position close to the pipe orifice of the oil return pipe, and the second part is a quarter arc taking the midpoint of the top end of the second folding plate as the center of a circle.
The inner rail is in an M-shaped bending shape, wherein two vertex sections and bottom point ends are arc sections, the rest sections are straight-line sections for connecting the arc sections, the inclined bottom end of the straight line of the initial section is positioned below the side of the first folding plate, the inclined bottom end of the tail section is positioned at a position close to the pipe orifice of the oil return pipe, and one vertex arc section is positioned above the second folding plate.
The further improvement lies in, evenly distributed has a plurality of liquid wheel on the connecting rod, liquid wheel receives the extrusion of hydraulic oil and rotates in order to disturb hydraulic oil when the mount pad removes, the outer wall of connecting rod is equipped with the power coil, is driving mount pad and sensor subassembly when removing through mobile device and is circular telegram to the power coil for attract the interior iron fillings of hydraulic oil.
The fault detection device is further improved in that the fault detection device further comprises a decontamination bar which is positioned above the oil drain valve, and the decontamination bar is specifically an electromagnet;
when the pollutant sensor is positioned on the inner rail at the central line of the oil tank, the pollutant concentration above the oil drain valve is detected to exceed the set value of the hydraulic system, the power-on coil is powered off and simultaneously the decontamination rod is electrified, so that scrap iron is attracted to the decontamination rod, and then the oil drain valve is opened to discharge pollutants and simultaneously clean the decontamination rod.
The upper end of the mounting seat is an arc line, and the bottom end of the mounting seat is a horizontal plane, so that the front end and the rear end of the mounting seat are streamline.
The fault detection device is further improved in that the fault detection device further comprises a temperature regulating pump positioned at the upper end of the box cover, a temperature control channel is arranged in the connecting rod, a liquid injection port communicated with the temperature control channel is arranged on the mounting seat, and the liquid injection port is connected with a liquid outlet of the temperature regulating pump through a hose.
The further improvement lies in, the inside of first folded plate and second folded plate all is equipped with the coil pipe, and the bottom feed liquor upper end of coil pipe goes out the liquid, the inlet and outlet of coil pipe all is connected to the pump feed liquor mouth that adjusts the temperature.
The temperature sensor is further improved in that two detection sections are arranged along the inner rail, the first detection section starts from the inner rail positioned below the side of the first folding plate to the end of the inner rail positioned at the central line of the oil tank, the second detection section starts from the end position of the first detection section to the end of the inner rail, and the two detection sections are provided with a plurality of temperature detection sites;
when the temperature sensor detects that the temperature of a certain temperature detection site exceeds 50 ℃ or is lower than 20 ℃ for at least three times, a temperature regulating pump is started to inject cooling liquid or heating liquid into a temperature control channel in the connecting rod so as to cool or heat at fixed points; when the average value of the temperatures detected by the temperature sensor at the temperature detection sites of the first section detection section is higher than 50 ℃ or lower than 20 ℃, a temperature regulating pump is started to inject cooling liquid or heating liquid into the coil pipe of the first folding plate to cool or heat hydraulic oil near the oil suction pipe; when the average temperature value detected by the temperature sensor at the temperature detection site of the second section detection section is higher than 50 ℃ or lower than 20 ℃, a temperature regulating pump is started to inject cooling liquid or heating liquid into the coil pipe of the second folding plate, so that the hydraulic oil near the oil return pipe is cooled or heated.
The application has the beneficial effects that: (1) On the basis of the structure of a hydraulic oil tank of an existing hydraulic system, the mounting seat and the sensor assembly are driven to transversely move through the moving device, and meanwhile, the two ends of the mounting seat are limited by the curved inner rail through the connecting rod, so that the mounting seat drives the sensor assembly to move along the track of the inner rail in the tank body, and the sensor assembly can obtain data information of different positions in the oil tank. The arrangement of the sensor is reduced, and the data diversity and accuracy of the sensor are increased.
(2) In the aspect of temperature faults, the detection device not only can play a role in detection and early warning, but also can correspondingly play a corresponding treatment role aiming at the temperature faults at different positions, and can play a role in cooling or heating hydraulic oil in time when the temperature rises.
(3) In the aspect of pollutant faults, the detection device not only can play a role in detection and early warning, but also can collect scrap iron continuously in the detection process, and can treat the pollutant in time when the concentration of the pollutant is too high.
Drawings
FIG. 1 is a schematic diagram of a prior art hydraulic system tank configuration;
FIG. 2 is a schematic diagram of the first overall construction of the hydraulic system-based fault detection device of the present application;
FIG. 3 is a schematic side view of a sensor assembly and its attendant structure of the hydraulic system-based fault detection device of the present application;
FIG. 4 is a schematic plan view of a sensor assembly and its attendant structure of the hydraulic system-based fault detection device of the present application;
fig. 5 is a schematic diagram of a second overall construction of the hydraulic system-based fault detection device of the present application.
In the figure: 1. an oil tank; 2. an oil suction pipe; 3. an oil return pipe; 4. a first folded plate; 5. a second folded plate; 6. a temperature regulating pump; 7. a transverse rail; 8. a mobile device; 9. a mounting base; 10. a telescopic rod; 11. a sensor assembly; 12. an inner rail; 13. a connecting rod; 14. a sliding seat; 15. a liquid wheel; 16. a temperature control channel; 17. a liquid injection port; 18. a power-on coil; 19. a decontamination bar; 20. an oil drain valve.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
As shown in fig. 1, the structure diagram of a hydraulic oil tank of a hydraulic system in the prior art is shown, the tank 1 comprises a tank body, a tank cover, an oil suction pipe 2 and an oil return pipe 3 which are arranged on the tank cover, and an oil drain valve 20 (a decontamination hand hole) which is arranged at the bottom end of the tank body, wherein the oil suction pipe 2 and the oil return pipe 3 are all extended to a position close to the bottom in the tank body, a first folding plate 4 and a second folding plate 5 which are staggered with each other are arranged in the tank 1, the first folding plate 4 is arranged at one side close to the oil suction pipe 2 and facing the oil return pipe 3, the upper end of the first folding plate 4 is not contacted with the tank cover and exceeds the hydraulic oil liquid level, the second folding plate 5 is arranged at one side close to the oil return pipe 3 and facing the oil suction pipe 2, the bottom end of the second folding plate 5 is fixedly connected with the bottom end of the tank body, a net filter is arranged at the pipe orifice of the oil suction pipe 2, an air filter is arranged on the tank cover, and a traditional detector component is arranged at the fixed position inside the tank 1, or is arranged at multiple points.
2-4, the fault detection device based on the hydraulic system of the embodiment comprises a transverse rail 7 positioned at the bottom end of a box cover, a moving device 8 sliding on the transverse rail 7, a telescopic rod 10 positioned at the bottom end of the moving device 8, a mounting seat 9 hinged with the bottom end of the telescopic rod 10, a sensor assembly 11 positioned at the bottom end of the mounting seat 9 and inner rails 12 positioned at two ends of the inner wall of the box body, wherein connecting rods 13 are arranged at two ends of the mounting seat 9, sliding seats 14 are rotatably arranged at the tail ends of the connecting rods 13, and the sliding seats 14 slide on the inner rails 12; the sensor assembly 11 comprises a temperature sensor and a pollutant sensor, is controlled by a main control module of the hydraulic system, and detects in a time set by the main control module; the telescopic rod 10 is a radial free telescopic rod, has a structure similar to a bamboo joint telescopic rod or a folding fishing rod, is vertical in the movement process, and is free to stretch; the moving means 8 is a linear reciprocating drive of the prior art.
The inner rail 12 is in a bent shape, one end of the inner rail 12 is positioned below the side of the first folding plate 4, the other end of the inner rail passes through the second folding plate 5 and is positioned at a position close to the pipe orifice of the oil return pipe 3, and one top end of the inner rail 12 is positioned above the second folding plate 5;
specifically, as shown in fig. 2, the inner rail 12 is formed by three integrally connected parts, the first part and the third part are all inclined straight lines, the second part is one of the top ends, the first part and the third part are connected through the arc-shaped second part, the inclined bottom end of the first part is positioned below the side of the first folding plate 4, the inclined high end is positioned above the side of the second folding plate 5, the inclined high end of the third part is positioned above the side of the second folding plate 5, the inclined bottom end is positioned at a position close to the pipe orifice of the oil return pipe 3, and the second part is a quarter arc taking the midpoint of the top end of the second folding plate 5 as a center of a circle, so that the smoothness of the movement of the mounting seat 9 can be ensured. By the arrangement, the temperature and pollutant data of the hydraulic oil at the orifices of the oil suction pipe 2 and the oil return pipe 3 can be detected, and the temperature and pollutant data at different positions in the longitudinal direction and the transverse direction inside the oil tank 1 can be detected.
The shape of the inner rail 12 is just one of the shapes, and the inner rail 12 of the application can ensure that the starting end is positioned below the side of the first folding plate 4, the tail end is positioned near the pipe orifice of the oil return pipe 3, and one top end is positioned above the second folding plate 5. In another embodiment, as shown in fig. 5, the inner rail 12 is in an M-shape, wherein two top and bottom points are arc segments, the rest are straight segments connecting the arc segments, the inclined bottom of the initial segment is located below the first folding plate 4, the inclined bottom of the tail segment is located near the pipe orifice of the oil return pipe 3, and one of the top point arc segments is located above the second folding plate 5. In particular a fold line or a wave shape, may be provided depending on the size of the tank 1.
When fault detection is carried out, the moving device 8 drives the mounting seat 9 and the sensor assembly 11 to transversely move, meanwhile, two ends of the mounting seat 9 are limited by the bent inner rail 12 through the connecting rod 13, when the first part of the inner rail 12 moves to the third part, the mounting seat 9 moves to one side by the transverse moving force of the moving device 8, when the moving device moves upwards, the telescopic rod 10 continuously shortens, when the third part is reached, the telescopic rod 10 continuously stretches in the forward moving process of the mounting seat 9, the mounting seat 9 drives the sensor assembly 11 to move along the track of the inner rail 12 in the box body, and the sensor assembly 11 can obtain temperature and pollutant data of different longitudinal and transverse positions in the oil tank 1.
Further, as shown in fig. 3, the upper end of the mounting seat 9 is an arc, and the bottom end is a horizontal plane, so that the front end and the rear end of the mounting seat 9 are streamline, and the resistance of hydraulic oil to the mounting seat 9 is reduced.
Example 2
On the basis of embodiment 1, further, as shown in fig. 1, 4 and 5, a plurality of hydraulic wheels 15 are uniformly distributed on the connecting rod 13, and when the mounting seat 9 moves, the hydraulic wheels 15 are extruded by hydraulic oil to rotate so as to disturb the hydraulic oil, and when the temperature rises, the current conversion process can be accelerated. The outer wall of the connecting rod 13 is provided with an energizing coil 18, and when the mounting seat 9 and the sensor assembly 11 are driven to move by the moving device 8, the energizing coil 18 is energized and is used for attracting scrap iron in hydraulic oil, in particular in the oil return process.
The fault detection device also comprises a decontamination bar 19 positioned above the oil drain valve 20, wherein the decontamination bar 19 is specifically an electromagnet, and can enter and exit the oil tank 1 through the oil drain valve 20 (decontamination hand hole);
when the pollutant sensor is positioned on the inner rail 12 at the central line position of the oil tank, and the pollutant concentration above the oil drain valve 20 is detected to exceed the set value of the hydraulic system, the power-on coil 18 is powered off and the decontamination rod 19 is powered on, after the power-on coil 18 is powered off, the iron filings attracted on the connecting rod 13 and the liquid wheel 15 are transferred to the decontamination rod 19 due to the attraction of the decontamination rod 19, and then the oil drain valve 20 is opened to discharge the pollutant and simultaneously the decontamination rod 19 is cleaned.
Example 3
On the basis of embodiment 1 or embodiment 2 or the combination thereof, further, as shown in fig. 2 and 4, the fault detection device further comprises a temperature-adjusting pump 6 positioned at the upper end of the tank cover, a temperature-controlling channel 16 is arranged in the connecting rod 13, a liquid injection port 17 communicated with the temperature-controlling channel 16 is arranged on the mounting seat 9, the liquid injection port 17 is connected with a liquid outlet of the temperature-adjusting pump 6 through a hose, wherein the temperature-adjusting pump 6 is a common liquid pump, and is connected with an external cooling liquid tank and a heating liquid tank.
As shown in fig. 2, the first folding plate 4 and the second folding plate 5 are respectively provided with a coil, the liquid inlet and the liquid outlet of the bottom end of the coil are respectively connected to the liquid outlet and the liquid inlet of the temperature adjusting pump 6, the inlet and the outlet of the temperature adjusting pump 6 are respectively provided with an electromagnetic valve, the electromagnetic valves are controlled by the main control module of the hydraulic system, and when the data collected by the temperature sensor is transmitted to the main control module, the main control module processes, calculates and sends out an execution command.
The temperature sensor is provided with two detection sections along the inner rail 12, wherein the first detection section starts from the inner rail 12 positioned below the side of the first folding plate 4 to the inner rail 12 positioned at the central line of the oil tank 1, the second detection section starts from the end position of the first detection section to the end of the inner rail 12, and the two detection sections are provided with a plurality of temperature detection sites;
when the temperature sensor detects that the temperature of the temperature detection site is higher than 50 ℃ or lower than 20 ℃ for at least three times at a certain detection site, the temperature regulating pump 6 is started to inject cooling liquid or heating liquid into the temperature control channel 16 in the connecting rod 13 to cool or heat at fixed points; when the average value of the temperatures detected by the temperature sensor at the temperature detection sites of the first detection section is more than 50 ℃ or less than 20 ℃, starting a temperature regulating pump 6 to inject cooling liquid or heating liquid into the coil pipe of the first folding plate 4 to cool or heat hydraulic oil near the oil suction pipe 2; when the average value of the temperatures detected by the temperature sensor at the temperature detection sites of the second detection section is greater than 50 ℃ or lower than 20 ℃, the temperature regulating pump 6 is started to inject cooling liquid or heating liquid into the coil pipe of the second folding plate 5, so that the hydraulic oil near the oil return pipe 3 is cooled or heated.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (6)
1. The utility model provides a fault detection device based on hydraulic system, hydraulic system includes the oil tank, the oil tank includes the box, the case lid, be located oil suction pipe and the oil return pipe on the case lid and be located the oil drain valve of box bottom, oil suction pipe and oil return pipe all extend to the box in be close to the bottom position, be equipped with first folded plate and the second folded plate of mutual crisscross in the oil tank, first folded plate is located and is close to oil suction pipe and towards one side of oil return pipe, the upper end and the case lid of first folded plate do not contact and surpass the hydraulic oil liquid level, the second folded plate is located and is close to oil return pipe and towards one side of oil suction pipe, the bottom and the box bottom fixed connection of second folded plate, its characterized in that:
the fault detection device comprises a transverse rail positioned at the bottom end of a box cover, a moving device sliding on the transverse rail, a telescopic rod positioned at the bottom end of the moving device, a mounting seat hinged with the bottom end of the telescopic rod, a sensor assembly positioned at the bottom end of the mounting seat and inner rails positioned at two ends of the inner wall of the box body, wherein connecting rods are arranged at two ends of the mounting seat, the tail ends of the connecting rods are rotatably provided with sliding seats, and the sliding seats slide on the inner rails; the inner rail is in a bent shape, one end of the inner rail is positioned below the side of the first folded plate, the other end of the inner rail penetrates through the second folded plate and is positioned at a position close to the pipe orifice of the oil return pipe, and one top end of the inner rail is positioned above the second folded plate;
when fault detection is carried out, the moving device drives the mounting seat and the sensor assembly to move transversely, and meanwhile, two ends of the mounting seat are limited by the curved inner rail through the connecting rod, so that the mounting seat drives the sensor assembly to move along the track of the inner rail in the tank body, and the sensor assembly can obtain data information of different positions in the oil tank;
the sensor assembly includes a temperature sensor and a contaminant sensor;
the fault detection device further comprises a temperature regulating pump positioned at the upper end of the box cover, a temperature control channel is arranged in the connecting rod, a liquid injection port communicated with the temperature control channel is arranged on the mounting seat, and the liquid injection port is connected with a liquid outlet of the temperature regulating pump through a hose;
the inside of the first folded plate and the second folded plate are respectively provided with a coil, the bottom end of the coil is fed with liquid, the upper end of the coil is fed with liquid, and the liquid inlet and the liquid outlet of the coil are respectively connected to the liquid inlet of the temperature-adjusting pump;
the temperature sensor is provided with two detection sections along the inner rail, the first detection section starts from the inner rail positioned below the first folding plate side to the end of the inner rail positioned at the central line of the oil tank, the second detection section starts from the end position of the first detection section to the end of the inner rail, and the two detection sections are provided with a plurality of temperature detection sites;
when the temperature sensor detects that the temperature of a certain temperature detection site exceeds 50 ℃ or is lower than 20 ℃ for at least three times, a temperature regulating pump is started to inject cooling liquid or heating liquid into a temperature control channel in the connecting rod so as to cool or heat at fixed points; when the average value of the temperatures detected by the temperature sensor at the temperature detection sites of the first section detection section is higher than 50 ℃ or lower than 20 ℃, a temperature regulating pump is started to inject cooling liquid or heating liquid into the coil pipe of the first folding plate to cool or heat hydraulic oil near the oil suction pipe; when the average temperature value detected by the temperature sensor at the temperature detection site of the second section detection section is higher than 50 ℃ or lower than 20 ℃, a temperature regulating pump is started to inject cooling liquid or heating liquid into the coil pipe of the second folding plate, so that the hydraulic oil near the oil return pipe is cooled or heated.
2. The hydraulic-system-based fault detection device of claim 1, wherein: the inner rail is in a fold line bending shape and is composed of three parts which are integrally connected, the first part and the third part are all in an inclined straight line shape, the first part and the third part are connected through an arc-shaped second part, the inclined bottom end of the first part is positioned below the side of the first folding plate, the inclined high end of the first part is positioned above the side of the second folding plate, the inclined high end of the third part is positioned above the side of the second folding plate, the inclined bottom end of the third part is positioned at a position close to the pipe orifice of the oil return pipe, and the second part is a quarter arc taking the midpoint of the top of the second folding plate as the center of a circle.
3. The hydraulic-system-based fault detection device of claim 1, wherein: the inner rail is in an M-shaped bending shape, wherein two top point sections and bottom point sections are arc sections, the rest sections are straight line sections for connecting the arc sections, the inclined bottom end of the straight line of the initial section is positioned below the side of the first folding plate, the inclined bottom end of the tail section is positioned at a position close to the pipe orifice of the oil return pipe, and one of the top point sections is positioned above the second folding plate.
4. The hydraulic-system-based fault detection device of claim 1, wherein: evenly distributed has a plurality of liquid wheel on the connecting rod, liquid wheel receives the extrusion of hydraulic oil and rotates in order to disturb hydraulic oil when the mount pad removes, the outer wall of connecting rod is equipped with the power-on coil, and when driving mount pad and sensor subassembly removal through mobile device to the power-on coil circular telegram for attract the iron fillings in the hydraulic oil.
5. The hydraulic-system-based fault detection device of claim 4, wherein: the fault detection device also comprises a decontamination bar positioned above the oil drain valve, wherein the decontamination bar is specifically an electromagnet;
when the pollutant sensor is positioned on the inner rail at the central line of the oil tank, the pollutant concentration above the oil drain valve is detected to exceed the set value of the hydraulic system, the power-on coil is powered off and simultaneously the decontamination rod is electrified, so that scrap iron is attracted to the decontamination rod, and then the oil drain valve is opened to discharge pollutants and simultaneously clean the decontamination rod.
6. The hydraulic-system-based fault detection device of claim 1, wherein: the upper end of mount pad is the pitch arc, and the bottom is the horizontal plane for both ends all are streamlined around making the mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310536357.0A CN116557381B (en) | 2023-05-12 | 2023-05-12 | Fault detection device based on hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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