CN117072504A - Hydraulic system and charge level processor - Google Patents
Hydraulic system and charge level processor Download PDFInfo
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- CN117072504A CN117072504A CN202311070644.3A CN202311070644A CN117072504A CN 117072504 A CN117072504 A CN 117072504A CN 202311070644 A CN202311070644 A CN 202311070644A CN 117072504 A CN117072504 A CN 117072504A
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- 230000001502 supplementing effect Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims description 31
- 238000011010 flushing procedure Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 230000000153 supplemental effect Effects 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 127
- 238000013461 design Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009423 ventilation 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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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
- 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
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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
- 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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- 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
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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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 invention provides a hydraulic system and a charge level processor, which aims at the problems that the oil of the existing open hydraulic system is always contacted with air, so that the air is easy to infiltrate into the system, hydraulic impact and energy loss occur in the reversing process, so that the movement of a mechanism is unstable, and a small-capacity oil supplementing pump is needed for supplementing oil and dissipating heat in order to compensate leakage in the system in a closed hydraulic system, so that a larger field area is occupied; the variable pump assembly can supplement oil to the variable plunger pump through the two oil delivery pipelines and the motor, so that the oil temperature in the closed system is balanced, heat dissipation and cooling are performed, the working efficiency of the equipment can be improved through the whole system, the energy consumption of the equipment in working is reduced, the stability and the reliability of the system are ensured, the pipeline layout is simple, the space is saved, and the maintenance are convenient.
Description
Technical Field
The invention relates to the technical field of production and processing of hot furnace burden surfaces, in particular to a hydraulic system and a burden surface processor.
Background
In the smelting industry, ore-smelting furnace burden surface treatment is taken as an important smelting process, so that raw materials can be uniformly distributed, a reaction area is enlarged, suspended materials are eliminated, crust formation and burden surface flaming are reduced, the ventilation property of furnace burden is improved, the smelting efficiency and the burden surface utilization rate are directly influenced, and a burden surface processor is generated on the basis.
At present, the field environment of the ore-smelting furnace burden surface treatment operation is complex, the material surface machine body is required to be compact, the flexibility is high, and the working efficiency of the operation is ensured. In the material surface treatment process, a hydraulic motor is usually adopted to drive a gear, and the gear drives a chain to carry out high-frequency reciprocating motion of a push rod, so that the material pushing and pulling functions are realized. This requires a highly efficient, accurate, stable, compact hydraulic system. In the prior art, a material surface processor generally adopts an open hydraulic system or a closed hydraulic system, and oil in the open hydraulic system is often contacted with air, so that the air is easy to infiltrate into the system, and hydraulic impact and energy loss occur in the reversing process, so that the movement of a mechanism is unstable; the closed system works without returning oil to the oil tank, so that the defects of the open hydraulic system can be avoided, but the conditions of heat dissipation and filtration of the oil are poor compared with those of the open hydraulic system, and the problem becomes a technical problem to be solved in the prior art.
Disclosure of Invention
The invention provides a hydraulic system and a material surface processor, which solve the technical problems that in the prior art, oil in an open hydraulic system is always contacted with air, so that the air is easy to infiltrate into the system, hydraulic impact and energy loss occur in the reversing process, the movement of a mechanism is unstable, and the heat dissipation effect in a closed hydraulic system is poor.
The invention provides the following technical scheme:
a hydraulic system, comprising: the device comprises a motor, a variable pump assembly, an oil supplementing pump assembly and an oil tank;
the variable pump assembly is connected with two ends of the motor through two oil delivery pipelines, and the driving direction of the motor is changed by changing the flow direction of oil in the two oil delivery pipelines;
the oil supplementing pump assembly is respectively connected with the variable pump assembly and the oil tank and is used for injecting oil in the oil tank into the variable pump assembly according to a first preset pressure;
and a flushing valve assembly is further arranged between the two oil conveying pipelines, the flushing valve assembly flushes the two oil conveying pipelines according to a second preset pressure, and the first preset pressure is larger than the second preset pressure.
According to the invention, different rotation directions of the motor are realized by controlling the electromagnetic coils at the two ends of the electromagnetic proportional reversing valve, and the rotating speed of the motor is controlled by inputting different current parameters at the two ends of the electromagnetic coils. When the electromagnetic proportional reversing valve is not electrically controlled, the closed variable plunger pump is not subjected to pressure output, so that energy consumption is saved, hydraulic oil is connected to the cooler in series through the flushing valve and the first pipeline and returns to the oil tank, and the oil which is lack of the hydraulic oil is supplemented by the oil supplementing pump, so that the system heat dissipation effect is achieved.
In one possible design, the oil replenishment pump assembly comprises a replenishment pump and a first low-pressure relief valve, the replenishment pump is connected with the oil tank through a stop valve and an oil suction filter, the replenishment pump is connected with the oil tank through the first low-pressure relief valve, and a relief port of the first low-pressure relief valve is connected with the oil tank through a cooler.
In one possible design, the flushing valve assembly comprises a flushing valve and a second low-pressure overflow valve, wherein two ends of the flushing valve are respectively connected with the two oil conveying pipelines, and two ends of the second low-pressure overflow valve are respectively connected with the flushing valve and the cooler; the first preset pressure of the first low-pressure relief valve is greater than the second preset pressure of the second low-pressure relief valve.
In one possible design, the variable displacement pump assembly comprises a variable displacement pump, a motor and a high-pressure overflow valve, wherein the motor is in transmission connection with the variable displacement pump and the oil supplementing pump, the variable displacement pump is respectively connected with two oil delivery pipelines through two high-pressure overflow valves, and the high-pressure overflow valves are used for controlling the working pressure of the motor.
In one possible design, the hydraulic system further includes a control panel, a controller, and a function controller, the control panel is electrically connected with the controller, the controller is electrically connected with the variable displacement pump through the power-on controller, the controller can receive a control signal of the control panel, and a function command is issued to the variable displacement pump through the function controller for adjusting an elevation angle of a swash plate in the variable displacement pump.
In one possible design, the hydraulic system further includes a receiver electrically connected to the function controller and a remote control wirelessly connected to the receiver.
In one possible design, the top of the motor is fixedly connected with a second support column, the top of the second support column is fixedly connected with a second shield for protecting the motor, and the oil supplementing pump assembly is respectively connected with the variable pump assembly and the oil tank through a second pipeline; the oil supplementing pump, the stop valve, the oil absorbing filter and the oil tank are sequentially connected through a third pipeline, the oil supplementing pump, the first low-pressure overflow valve and the oil tank are sequentially connected through a fourth pipeline, an overflow port of the first low-pressure overflow valve, the cooler and the oil tank are sequentially connected through a fifth pipeline, the second low-pressure overflow valve, the flushing valve and the cooler are sequentially connected through the first pipeline, and the variable plunger pump is provided with an electromagnetic proportional reversing valve.
In one possible design, the top of the motor is fixedly connected with a first support column, and the top of the first support column is fixedly connected with a first shield for protecting the motor.
In a possible design, oil absorption oil filter is including box, filter screen, framework, picture peg, L board, short slab and screw rod, the opening has been seted up at the top of box, the equal fixedly connected with draw runner in both sides of framework, the spout has all been seted up to the both sides inner wall of box, one side of draw runner and the inner wall sliding connection of spout, the filter screen is embedded in one side of framework, the handle of the frame pulling of top fixedly connected with of framework is convenient for, the bottom of picture peg and the top fixed connection of framework, the socket has been seted up to one side of picture peg, the bottom fixedly connected with slider of L board, the spacing groove has been seted up at the top of box, the bottom of slider and the inner wall sliding connection of spacing groove, the bottom of short slab and the top fixed connection of box, screw rod and short slab threaded connection, one end and one side rotation of L board of screw rod are connected, the other end fixedly connected with of screw rod is convenient for rotate the knob, the one end grafting of L board and the inside the socket, the inner wall fixedly connected with of box motor is convenient for the handle, the output of the inner wall fixedly connected with of L board and L board, the reciprocating screw rod has a screw rod and the screw rod, the screw rod has a screw rod fixedly connected with one side of the screw rod, the screw rod.
The material surface processor comprises a telescopic boom, a position detection assembly and the hydraulic system according to any one of claims, wherein the motor is connected with the telescopic boom through a transmission assembly and used for driving the telescopic boom to do telescopic action, and the position detection assembly is connected with the functional controller and used for detecting the running state of the telescopic boom.
The beneficial effects of the invention are as follows:
the variable plunger pump oil supplementing device is reasonable in structure, oil supplementing can be carried out on the variable plunger pump through the oil supplementing pump assembly, so that the oil temperature in the closed system is balanced, heat dissipation and cooling are carried out, the working efficiency of the equipment can be improved through the whole system, the energy consumption of the equipment in working is reduced, the stability and the reliability of the system are ensured, the pipeline layout is simple, the space is saved, and the maintenance and the repair are convenient.
According to the invention, the filter screen can be replaced by rotating the knob, the screw, the L plate, the plugboard and other structures, the rotation of the output end of the first motor drives the reciprocating screw rod to rotate in the oil filtering process, the reciprocating screw rod rotates to drive the L plate to reciprocate, and the movement of the L plate drives the impact block to move, so that the filter screen can be impacted reciprocally, the filter screen can vibrate, impurities attached to the filter screen can be shaken off, and the filter screen is prevented from being blocked.
Drawings
FIG. 1 is a schematic view of a hydraulic system and a burden surface processor without a first cover and a second cover;
FIG. 2 is a schematic diagram of a hydraulic system and a level processor according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a hydraulic system and a level handler according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a hydraulic system and a level handler according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a hydraulic system and a level handler according to an embodiment of the present invention;
FIG. 6 is a schematic side view of a hydraulic system and a level processor according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a second front view of a hydraulic system and a level handler according to an embodiment of the present invention;
FIG. 8 is a flow chart of a hydraulic system and controller for a level handler according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an internal structure of an oil suction filter of a hydraulic system and a level processor according to an embodiment of the present invention.
Reference numerals:
1. an oil tank; 2. a motor; 3. an oil delivery pipeline; 4. a motor; 5. a second low pressure relief valve; 6. a make-up pump; 7. a stop valve; 8. a cooler; 9. an oil suction filter; 10. a first shield; 11. a second shield; 12. a first low pressure relief valve; 13. a flush valve; 14. variable displacement plunger pump; 15. a high pressure overflow valve; 16. a first pipe; 17. a second pipe; 18. a third conduit; 19. a fourth conduit; 20. a fifth pipe; 21. a frame; 22. a slide bar; 23. a short plate; 24. an L plate; 25. inserting plate; 26. a screw; 27. a knob; 28. a filter screen; 29. a handle; 30. a limit groove; 31. a case; 32. a first motor; 33. a reciprocating screw rod; 34. a first L plate.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present invention are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present invention, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present invention.
In embodiments of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Referring to fig. 1-9, a hydraulic system, comprising: the variable displacement pump comprises a motor 4, a variable displacement pump assembly, an oil supplementing pump assembly and an oil tank 1; the variable pump assembly is connected with two ends of the motor 4 through two oil delivery pipelines 3, and the driving direction of the motor 4 is changed by changing the flow direction of oil in the two oil delivery pipelines 3; the oil supplementing pump assembly is respectively connected with the variable pump assembly and the oil tank 1 and is used for injecting oil in the oil tank 1 into the variable pump assembly according to a first preset pressure; and a flushing valve assembly is further arranged between the two oil conveying pipelines 3, the flushing valve assembly flushes the two oil conveying pipelines 3 according to a second preset pressure, and the first preset pressure is larger than the second preset pressure.
According to the technical scheme, the variable plunger pump 14 can be supplemented with oil through the oil supplementing pump assembly, so that the oil temperature in the closed system is balanced, heat dissipation and cooling are performed, the working efficiency of the equipment can be improved through the whole system, the energy consumption of the equipment in working is reduced, the stability and the reliability of the system are ensured, the pipeline layout is simple, the space is saved, and the maintenance are convenient.
Referring to fig. 1 and 3, the makeup pump assembly includes a makeup pump 6 and a first low pressure relief valve 12, the makeup pump 6 is connected to the tank 1 through a shut-off valve 7 and a suction oil filter 9, the makeup pump 6 is connected to the tank 1 through the first low pressure relief valve 12, and a relief port of the first low pressure relief valve 12 is connected to the tank 1 through a cooler 8.
According to the technical scheme, hydraulic oil in the oil tank 1 enters the oil supplementing pump 6 through the oil absorbing filter 9, the oil supplementing pump 6 is operated to fully fill the variable plunger pump 14 with oil through a pipeline, the working pressure of the oil supplementing pump 6 is set by the first low-pressure overflow valve 12, and overflow oil passes through the overflow port. When the system works, a small amount of hydraulic oil is connected in series to the cooler 8 through the flushing valve 13 and the first pipeline 16 to return to the oil tank 1, and the oil which is lack of the hydraulic oil is supplemented by the oil supplementing pump 6, so that the heat dissipation effect of the system is achieved. The oil suction filter 9 effectively ensures the filtering precision of oil supply, and the higher the filtering precision is, the better the oil cleanliness level is, and the longer the service life of the axial plunger element is.
Referring to fig. 3, the flushing valve assembly includes a flushing valve 13 and a second low pressure relief valve 5, both ends of the flushing valve 13 are respectively connected with the two oil delivery pipelines 3, and both ends of the second low pressure relief valve 5 are respectively connected with the flushing valve 13 and the cooler 8; the first preset pressure of the first low pressure relief valve 12 is greater than the second preset pressure of the second low pressure relief valve 5.
In the above technical scheme, the oil can be cooled by the cooler 8 and returned to the oil tank 1.
Referring to fig. 3, the variable displacement pump assembly includes a variable displacement pump 14, a motor 2 and a high-pressure relief valve 15, the motor 2 is in transmission connection with the variable displacement pump 14 and the oil supplementing pump 6, the variable displacement pump 14 is respectively connected with the two oil delivery pipelines 3 through the two high-pressure relief valves 15, and the high-pressure relief valve 15 is used for controlling the working pressure of the motor 4.
In the above technical scheme, the motor 2 is driven by a transmission shaft, the variable displacement pump 14 and the integrated oil supplementing pump 6 are used for absorbing oil from the oil tank 1 by the oil supplementing pump 6, and the oil is injected into the cavity of the variable displacement pump 14 to provide an oil source.
Referring to fig. 8, the hydraulic system further includes a control panel electrically connected to the controller, a controller electrically connected to the variable displacement pump 14 through a power on controller, and a function controller capable of receiving control signals from the control panel and issuing a function command to the variable displacement pump 14 through the function controller for adjusting an elevation angle of a swash plate in the variable displacement pump 14.
In the above technical solution, the controller can receive the control signal of the control panel, and issue a function command to the variable displacement pump 14 through the function controller, so as to be used for adjusting the elevation angle of the swash plate in the variable displacement pump 14.
Referring to fig. 8, the hydraulic system further includes a receiver electrically connected to the function controller and a remote controller wirelessly connected to the receiver.
According to the technical scheme, the remote control device is operated on a working site through a remote control mode, signals sent by the remote control device are transmitted to the receiver through wireless transmission, and the signals are converted to the function controller through the receiver, so that a remote control operation function is realized.
Referring to fig. 1 and 2, a second support column is fixedly connected to the top of the motor 2, and a second shield 11 for protecting the motor 2 is fixedly connected to the top of the second support column; the oil supplementing pump assembly is connected with the variable pump assembly through a second pipeline 17; the oil supplementing pump 6, the stop valve 7, the oil absorbing filter 9 and the oil tank 1 are connected in sequence through a third pipeline 18; the oil supplementing pump 6 and the first low-pressure overflow valve 12 are connected through a fourth pipeline 19; the overflow port of the first low-pressure overflow valve 12 is connected with the cooler 8 through a fifth pipe 20; the cooler 8 is connected with the oil tank 1; the second low-pressure overflow valve 5, the flushing valve 13 and the cooler 8 are connected in sequence through a first pipeline 16, and an electromagnetic proportional reversing valve is arranged on the variable plunger pump 14.
In the above technical scheme, the motor 2 can be protected through the second shield 11, so that the motor 2 is prevented from being crashed by foreign matters, and the service life is prolonged.
As shown in fig. 2, the top of the motor 4 is fixedly connected with a first support column, and the top of the first support column is fixedly connected with a first shield 10 for protecting the motor 4.
In the above technical scheme, the motor 4 can be effectively protected through the first protecting cover 10, so that the motor 4 is prevented from being crashed by foreign matters, and the service life is prolonged.
Referring to fig. 6 and 9, the oil suction filter 9 comprises a box 31, a filter screen 28, a frame 21, a plugboard 25, an L plate 24, a short plate 23 and a screw 26, wherein an opening is formed in the top of the box 31, both sides of the frame 21 are fixedly connected with sliding bars 22, sliding grooves are formed in the inner walls of both sides of the box 31, one side of each sliding bar 22 is in sliding connection with the inner wall of each sliding groove, the filter screen 28 is embedded in one side of the frame 21, a handle 29 which is convenient for pulling the frame 21 is fixedly connected to the top of the frame 21, the bottom of the plugboard 25 is fixedly connected with the top of the frame 21, a socket is formed in one side of the plugboard 25, a sliding block is fixedly connected to the bottom of the L plate 24, a limit groove 30 is formed in the top of the box 31, the bottom of the sliding block is in sliding connection with the inner wall of the limit groove 30, the bottom of the short plate 23 is fixedly connected with the top of the box 31, the screw 26 is in threaded connection with the short plate 23, one end of the screw 26 is in rotational connection with one side of the L plate 24, the other end of the screw 26 is fixedly connected with a knob 27 which is convenient for the screw 26 to rotate, one end of the L plate 24 is in the socket is connected with the inner wall of the sliding plate 31, one side of the first end of the jack is fixedly connected with the first end 33 of the screw plate 33, the inner wall of the first end 33 is fixedly connected with the screw nut 33, and the screw nut 34 is fixedly connected with the screw nut 33.
In the above technical scheme, the knob 27 is turned, the rotation of the knob 27 drives the rotation of the screw 26, the rotation of the screw 26 drives the movement of the L plate 24, so that the L plate 24 leaves the insertion opening of the insertion plate 25, the handle 29 is held to pull the frame 21 upwards, the filter screen 28 leaves the box 31, the filter screen 28 can be replaced, the material of the filter screen 28 can be a high-density stainless steel filter screen or other materials, the rotation of the output end of the first motor 32 drives the rotation of the reciprocating screw 33 in the oil filtering process, the rotation of the reciprocating screw 33 drives the reciprocating movement of the L plate 34, the movement of the L plate 34 drives the movement of the impact block, the filter screen 28 can be impacted reciprocally, the filter screen 28 vibrates, impurities attached to the filter screen 28 are vibrated down, and the filter screen 28 is prevented from being blocked.
Referring to fig. 1-9, a material surface processor comprises a telescopic boom, a position detection assembly and a hydraulic system according to any one of claims 1-9, wherein the motor 4 is connected with the telescopic boom through a transmission assembly and is used for driving the telescopic boom to perform telescopic action, and the position detection assembly is connected with a functional controller and is used for detecting the running state of the telescopic boom.
The technical effects of the above technical solution, such as the hydraulic system, are not described in detail.
The working principle and the using flow of the technical scheme are as follows: when the variable plunger pump 14 is a closed variable plunger pump 14, the variable plunger pump 14 is driven by a transmission shaft of the motor 2, the variable plunger pump 14 and the integrated oil supplementing pump 6 are driven by the oil supplementing pump 6, oil is pumped from the oil tank 1, the oil is injected into a cavity of the variable plunger pump 14, an oil source is provided, when the cavity is filled with oil to reach a set pressure, the first low-pressure overflow valve 12 is opened, the oil returns to the oil tank 1 through the first low-pressure overflow valve 12 and the cooler 8, constant oil pressure is formed in the cavity and is filled with the oil, the variable plunger pump 14 is completed by an oil supply system, the variable plunger pump 14 changes the elevation angle of a swash plate in a pump body through an input signal to form a low-pressure cavity and a high-pressure cavity, the pressure oil is output through the high-pressure cavity, the pressure oil is input into the motor 4 through an oil pipeline 3 and a flushing valve 13, different signals control the elevation angle directions of the swash plate are different, the motor 4 realizes different forward and backward rotation directions, the motor 4 drives a pushing mechanism to reciprocate through a chain, the low-pressure cavity of the motor 4 returns to the low-pressure cavity of the variable plunger pump 14 through the flushing valve 13, a small amount of oil is prevented from leaking to the closed plunger pump 14 when the closed plunger pump 14 reaches the closed plunger pump 14 and the closed plunger pump is balanced by the low-pressure system through the flushing valve 13;
the oil supplementing pump 6 integrated with the variable plunger pump 14 not only can ensure the positive displacement transmission response when the displacement of the main pump is changed, but also can increase the pressure at the oil inlet of the main pump, effectively improve the rotation speed of the pump and prevent the air suction of the pump, radiate heat for the closed system and prolong the service life, hydraulic oil in the oil tank 1 enters the oil supplementing pump 6 through the oil absorbing filter 9, the oil supplementing pump 6 is operated to fully fill the variable plunger pump 14 with oil through a pipeline, the working pressure of the oil supplementing pump 6 is set by the first low-pressure overflow valve 12, and overflow oil passes through the overflow port. When the system works, a small amount of hydraulic oil is connected in series to the cooler 8 through the flushing valve 13 and the first pipeline 16 to return to the oil tank 1, and the oil which is lack of the hydraulic oil is supplemented by the oil supplementing pump 6, so that the heat dissipation effect of the system is achieved. The oil suction filter 9 effectively ensures the filtering precision of oil supply, the higher the filtering precision is, the better the oil cleanliness grade is, the longer the service life of an axial plunger element is, and the heat dissipation effect can be achieved by paying attention to the fact that the pressure set value of the first low-pressure overflow valve 12 of the oil supplementing pump 6 is higher than the set value of the second low-pressure overflow valve 5 in the flushing valve 13;
the closed hydraulic system adopts modularized control, sets manual and automatic modes, wherein the manual mode is divided into handle operation and wireless remote control operation, different modes CAN be selected according to different working conditions, the handle operation and the automatic operation are respectively transmitted to a vehicle-mounted function controller through a controller and a CAN bus by a central control room, meanwhile, a displacement detection module detects the position of a current executing mechanism and feeds back the position to the function controller for judging whether the current position CAN normally run, when the current position passes through the detection, a signal is transmitted to a variable plunger pump 14 through the function controller, and the variable plunger pump 14 provides hydraulic pressure to a motor 4 in the executing mechanism according to the provided signal, so that the pushing and pulling functions are realized. The remote control mode is operated on the working site, the remote controller sends out signals to the receiver through wireless transmission, the signals are converted to the function controller through the receiver, the remote control operation function is realized, and when the pressure detection module detects whether the pressure is normal in real time in the pushing and pulling processes, the operation safety of the machine is ensured.
The pushing and pulling functions control the output oil way of the variable plunger pump 14 through the electromagnetic proportional reversing valve, so that the rotation direction of the motor 4 is controlled, the discharge capacity of the pump is regulated according to the load requirement, the energy consumption of a hydraulic system is reduced to the minimum, in the pushing and pulling processes, an electric system respectively controls electromagnetic coils at two ends of the electromagnetic proportional reversing valve, different rotation directions of the motor 4 are realized, and the rotation speed of the motor 4 is controlled through different current parameters at two ends of the input electromagnetic coils. When the electromagnetic proportional reversing valve is not electrically controlled, the variable plunger pump 14 does not have pressure output, so that the energy consumption is saved, the working efficiency of the equipment can be improved through the whole system, the energy consumption of the equipment in working is reduced, the stability and the reliability of the system are ensured, the pipeline layout is simple, the space is saved, and the maintenance and the repair are convenient;
when the filter screen 28 needs to be replaced, the knob 27 is rotated, the rotation of the knob 27 drives the screw 26 to rotate, the rotation of the screw 26 drives the L plate 24 to move, the L plate 24 is separated from the insertion opening of the insertion plate 25, the handle 29 is held to pull the frame 21 upwards, the filter screen 28 is separated from the box 31, and therefore the filter screen 28 can be replaced, and the filter screen 28 can be made of a high-density stainless steel filter screen or other materials;
the rotation of the output end of the first motor 32 drives the reciprocating screw rod 33 to rotate in the oil filtering process, the reciprocating screw rod 33 rotates to drive the L plate 34 to reciprocate, and the L plate 34 moves to drive the impact block to reciprocate and impact the filter screen 28, so that the filter screen 28 vibrates, impurities attached to the filter screen 28 shake off, and the filter screen 28 is prevented from being blocked.
The present invention is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention; embodiments of the invention and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A hydraulic system, comprising: the device comprises a motor, a variable pump assembly, an oil supplementing pump assembly and an oil tank;
the variable pump assembly is connected with two ends of the motor through two oil delivery pipelines, and the driving direction of the motor is changed by changing the flow direction of oil in the two oil delivery pipelines;
the oil supplementing pump assembly is respectively connected with the variable pump assembly and the oil tank and is used for injecting oil in the oil tank into the variable pump assembly according to a first preset pressure;
and a flushing valve assembly is further arranged between the two oil conveying pipelines, the flushing valve assembly flushes the two oil conveying pipelines according to a second preset pressure, and the first preset pressure is larger than the second preset pressure.
2. The hydraulic system of claim 1, wherein the supplemental pump assembly includes a supplemental pump and a first low pressure relief valve, the supplemental pump is connected to the tank through a shut-off valve and a suction oil filter, the supplemental pump is connected to the tank through the first low pressure relief valve, and a relief port of the first relief valve is connected to the tank through a cooler.
3. The hydraulic system of claim 2, wherein the flushing valve assembly comprises a flushing valve and a second low pressure relief valve, both ends of the flushing valve being connected to two of the oil delivery lines, respectively; two ends of the second low-pressure overflow valve are respectively connected with the flushing valve and the cooler; the first preset pressure of the first low-pressure relief valve is greater than the second preset pressure of the second low-pressure relief valve.
4. The hydraulic system of claim 2, wherein the variable displacement pump assembly comprises a variable displacement pump, a motor and a high-pressure overflow valve, the motor is in transmission connection with the variable displacement pump and the oil supplementing pump, the variable displacement pump is respectively connected with the two oil delivery pipelines through the two high-pressure overflow valves, and the high-pressure overflow valve is used for controlling the working pressure of the motor.
5. The hydraulic system of claim 4, further comprising a control panel, a controller, and a function controller, wherein the control panel is electrically connected to the controller, the controller is electrically connected to the variable displacement pump through the power on controller, the controller is capable of receiving a control signal from the control panel, and issuing a function command to the variable displacement pump through the function controller for adjusting an elevation angle of a swash plate in the variable displacement pump.
6. The hydraulic system of claim 5, further comprising a receiver and a remote control, wherein the receiver is electrically connected to the function controller and wherein the remote control is wirelessly connected to the receiver.
7. The hydraulic system of claim 3, wherein the oil supplementing pump, the first low-pressure overflow valve and the oil tank are sequentially connected through a fourth pipeline, the overflow port of the first low-pressure overflow valve, the cooler and the oil tank are sequentially connected through a fifth pipeline, the second low-pressure overflow valve, the flushing valve and the cooler are sequentially connected through the first pipeline, and the variable plunger pump is provided with an electromagnetic proportional reversing valve.
8. The hydraulic system of claim 4, wherein the top of the motor is fixedly connected with a first support column, the top of the first support column is fixedly connected with a first shield for protecting the motor, the top of the motor is fixedly connected with a second support column, the top of the second support column is fixedly connected with a second shield for protecting the motor, and the oil supplementing pump assembly is respectively connected with the variable pump assembly and the oil tank through a second pipeline; the oil supplementing pump, the stop valve, the oil absorbing filter and the oil tank are connected through a third pipeline in sequence.
9. The hydraulic system of claim 2, wherein the oil suction filter comprises a box body, a filter screen, a frame body, a plugboard, an L plate, a short plate and a screw rod, wherein an opening is formed in the top of the box body, sliding strips are fixedly connected to the two sides of the frame body, sliding grooves are formed in the inner walls of the two sides of the box body, one side of each sliding strip is in sliding connection with the inner wall of each sliding groove, the filter screen is embedded in one side of the frame body, a handle which is convenient for the frame body to pull is fixedly connected to the top of the plugboard, a socket is formed in one side of the plugboard, a sliding block is fixedly connected to the bottom of the L plate, a limit groove is formed in the top of the box body, the bottom of the sliding block is in sliding connection with the inner wall of the limit groove, the bottom of the short plate is fixedly connected with the top of the box body, the screw rod is in threaded connection with one side of the short plate, the other end of the screw rod is fixedly connected with the screw rod which is convenient for the screw rod to rotate, one end of the L plate is embedded in one side of the frame body, the motor is fixedly connected with the inner wall of the first screw rod, the first end of the screw rod is connected with the first end of the screw rod, and the first end of the screw rod is connected with the first end of the screw rod is fixedly connected with the first end of the screw rod.
10. The material surface processor is characterized by comprising a telescopic boom, a position detection assembly and the hydraulic system according to any one of claims 1-9, wherein the motor is connected with the telescopic boom through a transmission assembly and is used for driving the telescopic boom to do telescopic action, and the position detection assembly is connected with the function controller and is used for detecting the running state of the telescopic boom.
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| CN202311070644.3A CN117072504A (en) | 2023-08-24 | 2023-08-24 | Hydraulic system and charge level processor |
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| CN202311070644.3A CN117072504A (en) | 2023-08-24 | 2023-08-24 | Hydraulic system and charge level processor |
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| US20130004273A1 (en) * | 2011-06-30 | 2013-01-03 | Anthony Webb | Mining shuttle car |
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| CN110170981A (en) * | 2019-06-05 | 2019-08-27 | 甘肃金科脉草业有限责任公司 | A kind of industry mechanical arm for smashing furnace for mineral hot furnace |
| CN115981229A (en) * | 2022-12-09 | 2023-04-18 | 中国煤炭科工集团太原研究院有限公司 | Control system and method of multi-arm automatic anchor cable drill frame for coal mine |
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| US20130004273A1 (en) * | 2011-06-30 | 2013-01-03 | Anthony Webb | Mining shuttle car |
| CN104061212A (en) * | 2014-06-06 | 2014-09-24 | 中国煤炭科工集团太原研究院有限公司 | Electric hydraulic control running system for bracket carrier |
| CN110170981A (en) * | 2019-06-05 | 2019-08-27 | 甘肃金科脉草业有限责任公司 | A kind of industry mechanical arm for smashing furnace for mineral hot furnace |
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