CN111608998A - Hydraulic control system of loader-digger for coal mine - Google Patents
Hydraulic control system of loader-digger for coal mine Download PDFInfo
- Publication number
- CN111608998A CN111608998A CN202010398967.5A CN202010398967A CN111608998A CN 111608998 A CN111608998 A CN 111608998A CN 202010398967 A CN202010398967 A CN 202010398967A CN 111608998 A CN111608998 A CN 111608998A
- Authority
- CN
- China
- Prior art keywords
- pipe
- oil
- hydraulic
- fixedly connected
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
-
- 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
-
- 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
- F15B21/001—Servomotor systems with fluidic control
-
- 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
- F15B21/087—Control strategy, e.g. with block diagram
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
Abstract
The invention discloses a hydraulic control system of a loader-digger for coal mines, which comprises a control box and a hydraulic mechanism fixedly connected to one side of the top of the inner wall of the control box, wherein the top of one side of the inner wall of the control box is fixedly connected with a plate-type heat exchanger through a supporting plate, the bottom of one side of the inner wall of the control box is fixedly connected with a heat dissipation box through a mounting plate, the bottom of the plate-type heat exchanger is communicated with a vertical pipe, two ends of the vertical pipe are communicated with coiled pipes, and the bottom ends of the two coiled pipes sequentially penetrate through the control box and the mounting plate and extend to the bottom of. This hydraulic control system of loaderdigger for coal mine can realize adopting plate heat exchanger and circulating water cooling's mode to carry out abundant cooling to hydraulic oil when hydraulic system returns the oil, and cool off to the standard value that is set for in advance by temperature sensor or be less than the standard value after can carry to inside the oil tank and carry out follow-up use, if exceeded the standard value then need carry out water-cooling again.
Description
Technical Field
The invention relates to the technical field of coal mine operation, in particular to a hydraulic control system of a loader-digger for a coal mine.
Background
The backhoe loader is a single device consisting of three pieces of construction equipment, commonly called as 'busy at both ends', during construction, an operator only needs to rotate a seat to change a working end, the main work of the backhoe loader is to dig a ditch so as to arrange pipelines and underground cables, so as to lay a foundation for a building and establish a drainage system, the main reasons of the backhoe loader on all construction sites are that various projects need to dig and carry earth, and other tools can complete the work, but the backhoe loader can greatly improve the efficiency, compared with large-scale single-function equipment (such as a crawler excavator), the backhoe loader has compact size, and can move around various construction sites and even run on roads, although some small-sized loaders and digger equipment can be smaller than the backhoe loader, however, the use of the backhoe loader saves a lot of time and money if the contractor wants to perform both the digging and loading work.
The working mechanisms on the loader digger provide power through a hydraulic system, a hydraulic pump inputs hydraulic oil to the hydraulic system at constant pressure, and the hydraulic system is frequently used for a long time, so that the hydraulic oil in the hydraulic system is easily heated too fast, the hydraulic system cannot be sufficiently cooled during oil return, the normal use of the hydraulic oil and the hydraulic system is affected by high oil temperature, the service life of the hydraulic system is shortened, and the loader digger cannot normally work.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a hydraulic control system of a loader-digger for coal mines, which solves the problems that the temperature of hydraulic oil in a hydraulic system is easily increased too fast, the hydraulic system cannot be sufficiently cooled during oil return, and the hydraulic oil and the hydraulic system are influenced by high oil temperature along with the long-time frequent use of the hydraulic system.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a hydraulic control system of a loader-digger for coal mines comprises a control box and a hydraulic mechanism fixedly connected to one side of the top of the inner wall of the control box, wherein the top of one side of the inner wall of the control box is fixedly connected with a plate-type heat exchanger through a supporting plate, the bottom of one side of the inner wall of the control box is fixedly connected with a heat dissipation box through a mounting plate, the bottom of the plate-type heat exchanger is communicated with a vertical pipe, two ends of the vertical pipe are communicated with coiled pipes, the bottom ends of the two coiled pipes sequentially penetrate through the control box and the mounting plate and extend to the bottom of the mounting plate, a partition plate is fixedly connected between the two sides of the top and the bottom of the inner wall of the control box, the bottom of one side opposite to the two partition plates is communicated with a transverse pipe, a check valve is fixedly connected inside the transverse pipe, the water inlet intercommunication of circulating pump has the drinking-water pipe, the delivery port intercommunication of circulating pump has the outlet pipe, two just be located the top fixedly connected with shunt tubes of circulating pump, two between the relative one side of baffle the equal fixedly connected with weeping valve in inside of coiled pipe, two just the bottom intercommunication that is located the mounting panel between the relative one side in coiled pipe surface has the connecting pipe, and one side fixedly connected with temperature sensor at connecting pipe inner wall top, the bottom intercommunication on connecting pipe surface has the pipe, connecting block fixedly connected with oil pump is passed through to the bottom of control box inner wall, the one end of pipe is linked together with the oil inlet of oil pump, the oil-out intercommunication of oil pump has the oil drain pipe, the equal fixedly connected with radiating fin in both sides of heat dissipation case.
Preferably, the bottom of drinking-water pipe runs through the diaphragm and extends to the bottom of diaphragm, the top of outlet pipe is linked together with the bottom on shunt tubes surface.
Preferably, the top of control box inner wall opposite side is through connecting block fixedly connected with oil tank, the both sides on oil extraction pipe surface communicate respectively with first defeated oil pipe and second defeated oil pipe, the one end of first defeated oil pipe communicates with the bottom of oil tank, the one end of second defeated oil pipe is linked together with one side on standpipe surface, the inside of first defeated oil pipe and second defeated oil pipe is fixedly connected with first solenoid valve and second solenoid valve respectively.
Preferably, the top of the inner wall of the control box and one side of the hydraulic mechanism are fixedly connected with a hydraulic pump through a connecting block, an oil inlet of the hydraulic pump is communicated with an oil pumping pipe, and one end of the oil pumping pipe is communicated with the top of one side of the oil tank.
Preferably, an oil outlet of the hydraulic pump is communicated with an oil outlet pipe, and one end of the oil outlet pipe is communicated with one side of the hydraulic mechanism.
Preferably, one side of the bottom of the hydraulic mechanism is communicated with an oil return pipe, and one end of the oil return pipe is communicated with the top of one side of the plate heat exchanger.
Preferably, the output end of the temperature sensor is electrically connected with the input end of the data comparison module through a wire, the data comparison module is wirelessly connected with the central processing system in a two-way mode, and the output end of the central processing system is electrically connected with the input ends of the one-way valve, the refrigerator, the first electromagnetic valve, the second electromagnetic valve, the liquid leakage valve, the circulating pump, the oil pump and the hydraulic pump through wires respectively.
Preferably, the input end of the temperature sensor is electrically connected with the output end of the power module through a wire, and the output end of the power module is electrically connected with the input end of the central processing system through a wire.
(III) advantageous effects
The invention provides a hydraulic control system of a loader-digger for coal mines. The method has the following beneficial effects:
(1) the hydraulic control system of the loader-digger for coal mines is characterized in that a plate heat exchanger is fixedly connected to the top of one side of the inner wall of a control box through a support plate, a heat dissipation box is fixedly connected to the bottom of one side of the inner wall of the control box through a mounting plate, a vertical pipe is communicated with the bottom of the plate heat exchanger, two ends of the vertical pipe are communicated with coiled pipes, the bottoms of the two coiled pipes sequentially penetrate through the control box and the mounting plate and extend to the bottom of the mounting plate, a partition plate is fixedly connected between the two sides of the top and the bottom of the inner wall of the control box, the bottom of one side, opposite to the two partition plates, is communicated with a transverse pipe, a check valve is fixedly connected inside the transverse pipe, a refrigerator is fixedly connected to one side of the partition plate, a circulating pump is, a shunt pipe is fixedly connected between the opposite sides of the two partition plates and positioned at the top of the circulating pump, a liquid leakage valve is fixedly connected inside each of the two coiled pipes, a connecting pipe is communicated between the opposite sides of the surfaces of the two coiled pipes and positioned at the bottom of the mounting plate, a temperature sensor is fixedly connected at one side of the top of the inner wall of the connecting pipe, the bottom of the surface of the connecting pipe is communicated with a guide pipe, an oil pump is fixedly connected at the bottom of the inner wall of the control box through a connecting block, one end of the guide pipe is communicated with an oil inlet of the oil pump, an oil outlet of the oil pump is communicated with an oil discharge pipe, radiating fins are fixedly connected at both sides of the radiating box, the bottom end of the water suction pipe penetrates through the transverse plate and extends to the bottom of the transverse plate, the top end of the water outlet pipe is communicated with, one end of the first oil delivery pipe is communicated with the bottom of the oil tank, one end of the second oil delivery pipe is communicated with one side of the surface of the vertical pipe, the first electromagnetic valve and the second electromagnetic valve are respectively and fixedly connected inside the first oil delivery pipe and the second oil delivery pipe, the hydraulic pump is fixedly connected with the top of the inner wall of the control box and one side of the hydraulic mechanism through a connecting block, an oil pumping pipe is communicated with an oil inlet of the hydraulic pump, one end of the oil pumping pipe is communicated with the top of one side of the oil tank, the hydraulic oil can be fully cooled when the hydraulic system returns oil by adopting a plate heat exchanger and a circulating water cooling mode, and the cooling is to the standard value preset by the temperature sensor or can be conveyed to the inside of the oil tank for subsequent use after being lower than the standard value, if the standard value is exceeded, water cooling needs to be carried out again, and automatic control is realized, so that the control precision of the cooling temperature is high, and the normal use of the loader-digger is facilitated.
(2) This hydraulic control system of loaderdigger for coal mine, both ends through the standpipe all communicate there is the coiled pipe, the bottom of two coiled pipes runs through control box and mounting panel in proper order and extends to the bottom of mounting panel, equal fixedly connected with baffle between the both sides of control box inner wall top and bottom, the setting up of coiled pipe has increased the heat radiating area of hydraulic oil in the pipe, do benefit to the quick heat dissipation of hydraulic oil, the inside circulation flow of cavity that one side that two baffles deviate from simultaneously and heat dissipation incasement wall formed has the cooling water.
(3) This hydraulic control system of loader-digger for coal mine, the output through temperature sensor passes through the input electric connection of wire and data comparison module, and data comparison module realizes two-way connection through wireless and central processing system, central processing system's output is respectively through wire and check valve, the refrigerator, first solenoid valve, the second solenoid valve, the weeping valve, the circulating pump, the input electric connection of oil pump and hydraulic pump, temperature sensor's input passes through wire and power module's output electric connection, and power module's output passes through wire and central processing system's input electric connection, can realize carrying out the automation to whole hydraulic control system and control, need not personnel to operate, convenient and fast.
Drawings
FIG. 1 is a cross-sectional view of a structure of the present invention;
FIG. 2 is a cross-sectional view of the heat sink box structure of the present invention;
FIG. 3 is a cross-sectional view of a connector structure of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 1;
fig. 5 is a schematic block diagram of the architecture of the system of the present invention.
In the figure: 1-hydraulic mechanism, 2-hydraulic mechanism, 3-plate heat exchanger, 4-mounting plate, 5-radiating tank, 6-vertical pipe, 7-coiled pipe, 8-partition plate, 9-water outlet pipe, 10-refrigerator, 11-one-way valve, 12-transverse plate, 13-circulating pump, 14-water pumping pipe, 15-shunt pipe, 16-liquid leakage valve, 17-connecting pipe, 18-temperature sensor, 19-guide pipe, 20-oil pump, 21-oil discharge pipe, 22-radiating fin, 23-oil tank, 24-first oil delivery pipe, 25-second oil delivery pipe, 26-first electromagnetic valve, 27-second electromagnetic valve, 28-hydraulic pump, 29-oil pumping pipe, 30-oil outlet pipe, 31-oil return pipe, 3-oil return pipe, 32-data comparison module, 33-central processing system, 34-power supply module and 35-transverse tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a hydraulic control system of a loader-digger for coal mines can realize full cooling of hydraulic oil in a hydraulic system oil return mode by adopting a plate heat exchanger 3 and a circulating water cooling mode, and the hydraulic oil can be conveyed to the inside of an oil tank 23 for subsequent use after being cooled to a standard value preset by a temperature sensor 18 or below the standard value, if the standard value is exceeded, water cooling is needed again, automatic control is realized, so that the control precision of cooling temperature is high, and the normal use of the loader-digger is facilitated, the hydraulic control system comprises a control box 1 and a hydraulic mechanism 2 fixedly connected to one side of the top of the inner wall of the control box 1, one side of the bottom of the hydraulic mechanism 2 is communicated with an oil return pipe 31, one end of the oil return pipe 31 is communicated with the top of one side of the plate heat exchanger 3, the output end of the temperature sensor 18 is electrically connected with the input end of a data comparison module 32 through a lead, the model number of the humidity sensor 18 is JCJ175A, the input end of the temperature sensor 18 is electrically connected with the output end of the power module 34 through a lead, and the output end of the power module 34 is electrically connected with the input end of the central processing system 33 through a lead, so that the whole hydraulic control system can be automatically controlled without being operated by personnel, the operation is convenient and fast, the output end of the central processing system 33 is respectively electrically connected with the check valve 11, the refrigerator 10, the first electromagnetic valve 26, the second electromagnetic valve 27, the leakage valve 16, the circulating pump 13, the oil pump 20 and the input end of the hydraulic pump 28 through leads, the hydraulic pump 28 is fixedly connected with the top of the inner wall of the control box 1 and positioned at one side of the hydraulic mechanism 2 through a connecting block, the oil inlet of the hydraulic pump 28 is communicated with an oil pumping pipe 29, the oil outlet of the hydraulic pump 28 is communicated with an oil outlet, one end of an oil pumping pipe 29 is communicated with the top of one side of an oil tank 23, the top of the other side of the inner wall of the control box 1 is fixedly connected with the oil tank 23 through a connecting block, two sides of the surface of an oil discharge pipe 21 are respectively communicated with a first oil delivery pipe 24 and a second oil delivery pipe 25, one end of the first oil delivery pipe 24 is communicated with the bottom of the oil tank 23, one end of the second oil delivery pipe 25 is communicated with one side of the surface of a vertical pipe 6, the interiors of the first oil delivery pipe 24 and the second oil delivery pipe 25 are respectively and fixedly connected with a first electromagnetic valve 26 and a second electromagnetic valve 27, the top of one side of the inner wall of the control box 1 is fixedly connected with a plate heat exchanger 3 through a supporting plate, the bottom of one side of the inner wall of the control box 1 is fixedly connected with a heat dissipation box 5 through a mounting plate 4, the bottom of the plate heat exchanger 3, do benefit to quick heat dissipation of hydraulic oil, the cavity inside circulation that the one side that two baffles 8 deviate from mutually and the heat dissipation case 5 inner wall formed flows has the cooling water simultaneously, the bottom of two coiled pipes 7 runs through control box 1 and mounting panel 4 in proper order and extends to the bottom of mounting panel 4, all fixedly connected with baffle 8 between the both sides of control box 1 inner wall top and bottom, the bottom of the opposite side of two baffles 8 all communicates with violently pipe 35, and violently pipe 35's inside fixedly connected with check valve 11, one side fixedly connected with refrigerator 10 of baffle 8, refrigerator 10 is located one side of left side baffle 8, through diaphragm 12 fixedly connected with circulating pump 13 between the top of the opposite side of two baffles 8, the water inlet of circulating pump 13 communicates with drinking-water pipe 14, the bottom of drinking-water pipe 14 runs through diaphragm 12 and extends to the bottom of diaphragm 12, the top of outlet pipe 9 is linked together with the, the delivery port intercommunication of circulating pump 13 has outlet pipe 9, the top fixedly connected with shunt tubes 15 that just is located circulating pump 13 between the relative one side of two baffle 8, the equal fixedly connected with weeping valve 16 in inside of two coiled pipes 7, the bottom intercommunication that just is located mounting panel 4 between the relative one side in two coiled pipes 7 surfaces has connecting pipe 17, and one side fixedly connected with temperature sensor 18 at connecting pipe 17 inner wall top, the bottom intercommunication on connecting pipe 17 surface has pipe 19, connecting block fixedly connected with oil pump 20 is passed through to the bottom of control box 1 inner wall, the one end of pipe 19 is linked together with the oil inlet of oil pump 20, the oil-out intercommunication of oil pump 20 has oil drain pipe 21, the equal fixedly connected with radiating fin 22 in both sides of radiator box 5.
When the device is used, the standard temperature value of hydraulic oil needing to be input is judged in advance, the temperature value higher than the standard is a high-temperature alarm threshold value, then the high-temperature alarm threshold value is input into a data comparison module 32 to serve as comparison data, the hydraulic pump 28 conveys the hydraulic oil in the oil tank 23 into the hydraulic mechanism 2 through the oil outlet pipe 30, the hydraulic mechanism 2 conveys the discharged high-temperature hydraulic oil into the plate heat exchanger 3 through the oil return pipe 31, the high-temperature hydraulic oil removes most of heat in the plate heat exchanger 3, the hydraulic oil containing heat enters the two coiled pipes 7 through the vertical pipe 6, the circulating pump 13 is started, the circulating pump 13 pumps cooling water at the bottom of the transverse plate 12, which is refrigerated by the refrigerator 10, into the shunt pipe 15 through the water suction pipe 14 and the water outlet pipe 9, and then the cooling water is conveyed into a cavity formed by the side, opposite to the side, of the two partition, the cooling water carries out water-cooled heat dissipation on the hydraulic oil in the coiled pipe 7 in the cavity, the water absorbing heat enters the cavity between the opposite sides of the two partition plates 8 through the transverse pipe 35 and the one-way valve 11 and then is refrigerated by the refrigerator 10 to form a water-cooled circulation, the hydraulic oil after heat dissipation flows into the connecting pipe 17, at this time, the temperature sensor 18 in the connecting pipe 17 detects the temperature of the hydraulic oil flowing through the connecting pipe 17, then the detected value is transmitted to the data comparison module 32, the detected temperature value is compared with the high-temperature alarm threshold value in the data comparison module 32, the data comparison module 32 feeds the high-temperature alarm threshold value back to the central processing system 33, if the temperature of the hydraulic oil after heat dissipation is higher than the high-temperature alarm threshold value, at this time, the central processing system 33 controls the oil pump 20 and the second electromagnetic valve 27 to be opened, inside oil pump 20 carries hydraulic oil to defeated oil pipe 25 of second through pipe 19 and oil extraction pipe 21, carry to standpipe 6 inside circulative cooling again by defeated oil pipe 25 of second, if equal to or when being less than the standard temperature value of settlement, then open first solenoid valve 26, inside oil pump 20 carries hydraulic oil to first defeated oil pipe 24 through pipe 19 and oil extraction pipe 21, again by first defeated oil pipe 24 with hydraulic oil carry 23 inside to carry out subsequent use can, just so accomplished whole work.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a hydraulic pressure control system of loaderdigger for coal mine, includes control box (1) and fixed connection in hydraulic pressure mechanism (2) of control box (1) inner wall top one side, its characterized in that: the heat dissipation device is characterized in that the top of one side of the inner wall of the control box (1) is fixedly connected with a plate type heat exchanger (3) through a supporting plate, the bottom of one side of the inner wall of the control box (1) is fixedly connected with a heat dissipation box (5) through a mounting plate (4), the bottom of the plate type heat exchanger (3) is communicated with a vertical pipe (6), two ends of the vertical pipe (6) are communicated with coiled pipes (7), the bottom ends of the two coiled pipes (7) sequentially penetrate through the control box (1) and the mounting plate (4) and extend to the bottom of the mounting plate (4), a partition plate (8) is fixedly connected between the two sides of the top and the bottom of the inner wall of the control box (1), the bottom of the opposite side of the two partition plates (8) is communicated with a transverse pipe (35), a check valve (11) is fixedly connected inside the transverse pipe, two through diaphragm (12) fixedly connected with circulating pump (13) between the top of the relative one side of baffle (8), the water inlet intercommunication of circulating pump (13) has drinking-water pipe (14), the delivery port intercommunication of circulating pump (13) has outlet pipe (9), two top fixedly connected with shunt tubes (15) that just are located circulating pump (13) between the relative one side of baffle (8), two equal fixedly connected with weeping valve (16) in inside of coiled pipe (7), two the bottom intercommunication that just is located mounting panel (4) between the relative one side in coiled pipe (7) surface has connecting pipe (17), and one side fixedly connected with temperature sensor (18) at connecting pipe (17) inner wall top, the bottom intercommunication on connecting pipe (17) surface has pipe (19), connecting block fixedly connected with oil pump (20) is passed through to the bottom of control box (1) inner wall, one end of the guide pipe (19) is communicated with an oil inlet of the oil pump (20), an oil outlet of the oil pump (20) is communicated with an oil discharge pipe (21), and two sides of the heat dissipation box (5) are fixedly connected with heat dissipation fins (22).
2. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: the bottom of drinking-water pipe (14) runs through diaphragm (12) and extends to the bottom of diaphragm (12), the top and the bottom on shunt tubes (15) surface of outlet pipe (9) are linked together.
3. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: connecting block fixedly connected with oil tank (23) is passed through at the top of control box (1) inner wall opposite side, the both sides on oil extraction pipe (21) surface communicate respectively and have first defeated oil pipe (24) and second defeated oil pipe (25), the one end of first defeated oil pipe (24) is linked together with the bottom of oil tank (23), the one end and the one side on standpipe (6) surface of second defeated oil pipe (25) are linked together, the inside difference fixedly connected with first solenoid valve (26) and second solenoid valve (27) of first defeated oil pipe (24) and second defeated oil pipe (25).
4. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: the hydraulic control system is characterized in that a hydraulic pump (28) is fixedly connected to one side, located on the hydraulic mechanism (2), of the top of the inner wall of the control box (1) through a connecting block, an oil inlet of the hydraulic pump (28) is communicated with an oil pumping pipe (29), and one end of the oil pumping pipe (29) is communicated with the top of one side of the oil tank (23).
5. The hydraulic control system of the mining loader-digger of claim 4, characterized in that: an oil outlet of the hydraulic pump (28) is communicated with an oil outlet pipe (30), and one end of the oil outlet pipe (30) is communicated with one side of the hydraulic mechanism (2).
6. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: one side of the bottom of the hydraulic mechanism (2) is communicated with an oil return pipe (31), and one end of the oil return pipe (31) is communicated with the top of one side of the plate-type heat exchanger (3).
7. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: the output end of the temperature sensor (18) is electrically connected with the input end of the data comparison module (32) through a wire, the data comparison module (32) is wirelessly connected with the central processing system (33) in a two-way mode, and the output end of the central processing system (33) is electrically connected with the input ends of the check valve (11), the refrigerator (10), the first electromagnetic valve (26), the second electromagnetic valve (27), the leakage valve (16), the circulating pump (13), the oil pump (20) and the hydraulic pump (28) through wires.
8. The hydraulic control system of the mining loader-digger of claim 1, characterized in that: the input end of the temperature sensor (18) is electrically connected with the output end of the power supply module (34) through a lead, and the output end of the power supply module (34) is electrically connected with the input end of the central processing system (33) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398967.5A CN111608998B (en) | 2020-05-12 | 2020-05-12 | Hydraulic control system of loader-digger for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398967.5A CN111608998B (en) | 2020-05-12 | 2020-05-12 | Hydraulic control system of loader-digger for coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111608998A true CN111608998A (en) | 2020-09-01 |
| CN111608998B CN111608998B (en) | 2022-06-21 |
Family
ID=72203138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398967.5A Active CN111608998B (en) | 2020-05-12 | 2020-05-12 | Hydraulic control system of loader-digger for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111608998B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3702904A1 (en) * | 1987-01-31 | 1988-08-11 | Wagner Paul Heinz | Hydraulic supply unit |
| CN201010924Y (en) * | 2007-03-16 | 2008-01-23 | 杨平 | Automatic fast cooling system for excavator hydraulic oil |
| CN202730832U (en) * | 2012-07-16 | 2013-02-13 | 淮南市众兴机械制造有限责任公司 | Dual-cooling device of hydraulic system of backhoe loader |
| DE102011083874A1 (en) * | 2011-09-30 | 2013-04-04 | Putzmeister Engineering Gmbh | Hydraulic system with suction return filter |
| CN103233947A (en) * | 2012-01-08 | 2013-08-07 | 钱荣华 | Method for cooling hydraulic oil of underground coal mine loader digger and other equipment |
| JP2014009805A (en) * | 2012-07-03 | 2014-01-20 | Caterpillar Sarl | Hydraulic circuit with accumulator for work machine |
| CN103806497A (en) * | 2014-02-14 | 2014-05-21 | 上海三一重机有限公司 | Oil return system allowing oil temperature to be regulated automatically and excavator |
| KR20140109388A (en) * | 2011-12-23 | 2014-09-15 | 볼보 컨스트럭션 이큅먼트 에이비 | Hydraulic fan drive control system for construction machinery |
| CN105351287A (en) * | 2015-12-04 | 2016-02-24 | 四川海搏液压机械有限公司 | Cooling mechanism for cooling hydraulic oil |
| CN205841377U (en) * | 2016-07-07 | 2016-12-28 | 穆玮 | A kind of oil pressure plant equipment oil temperature chiller |
| CN108978766A (en) * | 2018-06-28 | 2018-12-11 | 柳州柳工挖掘机有限公司 | Hydraulic crawler excavator cooling system arragement construction |
| CN110701147A (en) * | 2019-10-09 | 2020-01-17 | 建湖县八达液压机械有限公司 | Heat dissipation assembly for hydraulic pump station |
| CN211924641U (en) * | 2020-03-12 | 2020-11-13 | 安徽涌诚机械有限公司 | Hydraulic oil cooling device for hydraulic unit of large-scale precision die casting machine |
-
2020
- 2020-05-12 CN CN202010398967.5A patent/CN111608998B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3702904A1 (en) * | 1987-01-31 | 1988-08-11 | Wagner Paul Heinz | Hydraulic supply unit |
| CN201010924Y (en) * | 2007-03-16 | 2008-01-23 | 杨平 | Automatic fast cooling system for excavator hydraulic oil |
| DE102011083874A1 (en) * | 2011-09-30 | 2013-04-04 | Putzmeister Engineering Gmbh | Hydraulic system with suction return filter |
| KR20140109388A (en) * | 2011-12-23 | 2014-09-15 | 볼보 컨스트럭션 이큅먼트 에이비 | Hydraulic fan drive control system for construction machinery |
| CN103233947A (en) * | 2012-01-08 | 2013-08-07 | 钱荣华 | Method for cooling hydraulic oil of underground coal mine loader digger and other equipment |
| JP2014009805A (en) * | 2012-07-03 | 2014-01-20 | Caterpillar Sarl | Hydraulic circuit with accumulator for work machine |
| CN202730832U (en) * | 2012-07-16 | 2013-02-13 | 淮南市众兴机械制造有限责任公司 | Dual-cooling device of hydraulic system of backhoe loader |
| CN103806497A (en) * | 2014-02-14 | 2014-05-21 | 上海三一重机有限公司 | Oil return system allowing oil temperature to be regulated automatically and excavator |
| CN105351287A (en) * | 2015-12-04 | 2016-02-24 | 四川海搏液压机械有限公司 | Cooling mechanism for cooling hydraulic oil |
| CN205841377U (en) * | 2016-07-07 | 2016-12-28 | 穆玮 | A kind of oil pressure plant equipment oil temperature chiller |
| CN108978766A (en) * | 2018-06-28 | 2018-12-11 | 柳州柳工挖掘机有限公司 | Hydraulic crawler excavator cooling system arragement construction |
| CN110701147A (en) * | 2019-10-09 | 2020-01-17 | 建湖县八达液压机械有限公司 | Heat dissipation assembly for hydraulic pump station |
| CN211924641U (en) * | 2020-03-12 | 2020-11-13 | 安徽涌诚机械有限公司 | Hydraulic oil cooling device for hydraulic unit of large-scale precision die casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111608998B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11026344B2 (en) | Fluid conditioner for cooling fluid in a tank holding computers and/or other electronics equipment, a cooling system incorporating such a fluid conditioner, and a method of cooling fluid in a tank holding computers and/or other electronics equipment | |
| US5992507A (en) | Geothermal community loop field | |
| KR101389410B1 (en) | Real time automatic control system of open ground heat exchanger | |
| CN111608998B (en) | Hydraulic control system of loader-digger for coal mine | |
| CN210888851U (en) | Slurry cooling system | |
| JP2004317102A (en) | Heat pump using well water heat | |
| KR20170095422A (en) | Circulating apparatus for collecting geothermal and geothermal colection system using the same | |
| CN203362710U (en) | Engineering machinery hydraulic oil tank with cooling function | |
| JP6681059B2 (en) | Heat conversion device in pumping well | |
| CN202730832U (en) | Dual-cooling device of hydraulic system of backhoe loader | |
| KR20220069205A (en) | Geothermal cooling and heating system | |
| CN208419252U (en) | A kind of cooling water heat circulatory system | |
| CN201944041U (en) | Hydraulic oil cooling system of coal mining machine | |
| CN215490105U (en) | Variable-depth middle-deep ground source heat pump system | |
| KR200344819Y1 (en) | Apparatus for controlling pressure of expanded water for heating water | |
| CN213574949U (en) | Comprehensive heat dissipation system of mining hydraulic side-dumping rock loader | |
| CN204941686U (en) | For expansion cistern assembly and the Work machine of Work machine cooling bag | |
| KR102457279B1 (en) | A sealed and open type underground heat exchange system that shares the same circulating heat medium and Method for constructing this same | |
| CN210263102U (en) | Vacuum dewatering equipment | |
| CN213599821U (en) | Closed circulation system for cooling and supplying water to crucible | |
| CN218760737U (en) | oil cooler circuit | |
| CN113719927A (en) | Variable-depth middle-deep ground source heat pump system | |
| CN212536279U (en) | Liquid level oil temperature self-balancing type combined oil tank | |
| CN214507716U (en) | Constant temperature machine case and remote driving mechanical equipment | |
| CN216839567U (en) | Underground pipe gallery guardianship waterproof construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |