CN107830000A - Stacker-reclaimer pitching hydraulic system - Google Patents

Stacker-reclaimer pitching hydraulic system Download PDF

Info

Publication number
CN107830000A
CN107830000A CN201710980888.3A CN201710980888A CN107830000A CN 107830000 A CN107830000 A CN 107830000A CN 201710980888 A CN201710980888 A CN 201710980888A CN 107830000 A CN107830000 A CN 107830000A
Authority
CN
China
Prior art keywords
oil
valve
hydraulic
pipe
pressure
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.)
Pending
Application number
CN201710980888.3A
Other languages
Chinese (zh)
Inventor
王国清
徐朝阳
徐立坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Longkou Mining Group Co Ltd
Original Assignee
Longkou Mining Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Longkou Mining Group Co Ltd filed Critical Longkou Mining Group Co Ltd
Priority to CN201710980888.3A priority Critical patent/CN107830000A/en
Publication of CN107830000A publication Critical patent/CN107830000A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04Special measures taken in connection with the properties of the fluid
    • F15B21/041Removal or measurement of solid or liquid contamination, e.g. filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20546Type of pump variable capacity

Landscapes

  • 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

Stacker-reclaimer pitching hydraulic system, including the variable pump driven by motor, the oil inlet of variable pump is connected with the outlet of variable pump low pressure oil supply pipe, the bottom that the import of variable pump low pressure oil supply pipe is put in hydraulic oil tank, the oil-out of variable pump is connected with the import of variable pump high-pressure oil pipe, variable pump high-pressure oil pipe is connected with the import of variable pump high pressure relief pipe, the middle part of variable pump high pressure relief pipe is provided with variable pump high-pressure decompression valve, the outlet of variable pump high pressure relief pipe is connected with the oil inlet of the first oil return pipe, return filter is in series with the middle part of first oil return pipe, the outlet of first oil return pipe is connected with hydraulic oil tank, the import of import and oil cylinder main oil supply pipe of the outlet of variable pump high-pressure oil pipe with hydraulic control oil supply pipe is connected.High its object is to provide a kind of security reliability, service life length is stable and reliable for performance, can avoid the stacker-reclaimer pitching hydraulic system for causing equipment integrally to rise automatically because of the damage oil leak of single pitching cylinder upper end rod chamber seal.

Description

Stacker-reclaimer pitching hydraulic system
Technical field
The present invention relates to a kind of stacker-reclaimer pitching hydraulic system.
Background technology
The reliability of double oil cylinder pitching design of Hydraulic System of large scale equipment stacker-reclaimer, does not involve the use of equipment singly Safety, also concerns personal safety, and perfect in security reliability is exactly the lifting of benefit, the input in security reliability The barrier set together away from loss is exactly built to user.But the pitching hydraulic system of existing stacker-reclaimer, because it is being designed It is upper unreasonable, during the heavily loaded Performance Assessment after the completion of installation and debugging, because of single pitching cylinder upper end rod chamber seal Damage oil leak causes the overall automatic rise of equipment, it is easy to the engine-damaged accident of counterweight and trailer slight degree of crash occurs, causes platform Deformation with trailer pull bar is scrapped.
The content of the invention
It is an object of the invention to provide a kind of security reliability is high, service life length is stable and reliable for performance, can avoid because Single pitching cylinder upper end rod chamber seal damage oil leak causes the stacker-reclaimer pitching hydraulic pressure system that equipment integrally rises automatically System.
The stacker-reclaimer pitching hydraulic system of the present invention, including the variable pump driven by motor, the oil inlet of variable pump Outlet with variable pump low pressure oil supply pipe is connected, and pipe valve, variable pump low pressure oil supply are in series with the middle part of variable pump low pressure oil supply pipe The bottom that the import of pipe is put in hydraulic oil tank, the oil-out of the variable pump are connected with the import of variable pump high-pressure oil pipe, The middle part of variable pump high-pressure oil pipe is connected with high-pressure oil pipe check valve, high-pressure oil pipe filter and high-pressure oil pipe in turn from front to back Pressure gauge, variable pump high-pressure oil pipe are connected with the import of variable pump high pressure relief pipe, and the middle part of variable pump high pressure relief pipe is provided with Variable pump high-pressure decompression valve, the outlet of variable pump high pressure relief pipe are connected with the oil inlet of the first oil return pipe, the first oil return pipe Middle part is in series with return filter, and the outlet of the first oil return pipe is connected with hydraulic oil tank, the outlet of variable pump high-pressure oil pipe with The import of hydraulic control oil supply pipe is connected with the import of the main oil supply pipe of oil cylinder;
The oil-out of the hydraulic control oil supply pipe is connected with the pressure oil port of hydraulic control two-position four-way solenoid directional control valve, hydraulic control two four The left actuator port and right actuator port of electric change valve are connected with two oil-feed ports of liquid control one-way throttle valve, hydraulic control two The pressure release hydraulic fluid port of position four-way electromagnetic reversing valve is connected by pipeline with the import of the second oil return pipe, the outlet of the second oil return pipe and liquid Force feed fuel tank is connected;
The oil-out of the main oil supply pipe of oil cylinder is connected with the pressure oil port of main fuel feeding two-position four-way solenoid directional control valve, main fuel feeding The pressure release hydraulic fluid port of two-position four-way solenoid directional control valve is connected with the oil inlet of the first oil return pipe;
The left actuator port of the main fuel feeding two-position four-way solenoid directional control valve is by being sequentially connected in series the left check valve of main hydraulic lock It is connected with the left pipeline of left choke valve with the main road oil inlet of left hydraulic control one-way valve, the hydraulic control oil inlet of left hydraulic control one-way valve passes through Hydraulic control fuel feed pump is connected with the oil-out of liquid control one-way throttle valve, the hydraulic control oil-out of left hydraulic control one-way valve by pipeline with it is described The import of second oil return pipe is connected;
The right actuator port of the main fuel feeding two-position four-way solenoid directional control valve is by being sequentially connected in series the right check valve of main hydraulic lock It is connected with the right pipeline of right choke valve with the main road oil inlet of right hydraulic control one-way valve, the hydraulic control oil inlet of right hydraulic control one-way valve passes through Hydraulic control fuel feed pump is connected with the oil-out of liquid control one-way throttle valve, the hydraulic control oil-out of right hydraulic control one-way valve by pipeline with it is described The import of second oil return pipe is connected;
The right work that the hydraulic control mouth of the left check valve of the main hydraulic lock passes through pipeline and main fuel feeding two-position four-way solenoid directional control valve Hydraulic fluid port is connected, and the hydraulic control mouth of the right check valve of main hydraulic lock passes through the left work of pipeline and main fuel feeding two-position four-way solenoid directional control valve Hydraulic fluid port is connected;
Prevented respectively with the A actuator ports of left explosion-proof valve and the right side by being in series with the pipeline of pipe valve the outlet of the left hydraulic control one-way valve The A actuator ports of quick-fried valve are connected, and the outlet of right hydraulic control one-way valve is by being in series with the pipeline of the pipe valve B works with left explosion-proof valve respectively Make hydraulic fluid port with the B actuator ports of right explosion-proof valve to be connected, the T pressure releases hydraulic fluid port of left explosion-proof valve and the T pressure releases hydraulic fluid port of right explosion-proof valve and The oil inlet of three oil return pipes is connected, and is in series with the 3rd oil return pipe pipe valve in the middle part of the first oil return pipe, the outlet of the 3rd oil return pipe with Hydraulic oil tank is connected;
The A1 actuator ports of the left explosion-proof valve are connected with the rodless cavity of left pitching lifting single pole oil cylinder, left pitching lifting single pole oil The piston rod of cylinder vertically can stretch out upwards, and the B1 actuator ports of left explosion-proof valve have bar with left pitching lifting single pole oil cylinder Chamber is connected, and the valve body of left explosion-proof valve is provided with two left explosion-proof valve air bleeding valves;
The A1 actuator ports of the right explosion-proof valve are connected with the rodless cavity of right pitching lifting single pole oil cylinder, right pitching lifting single pole oil The piston rod of cylinder vertically can stretch out upwards, and the B1 actuator ports of right explosion-proof valve have bar with right pitching lifting single pole oil cylinder Chamber is connected, and the valve body of right explosion-proof valve is provided with two right explosion-proof valve air bleeding valves;
Also include stand-by pump, the oil inlet of stand-by pump is connected with the outlet of stand-by pump low pressure oil supply pipe, stand-by pump low pressure oil supply pipe Middle part be in series with stand-by pump pipe valve, the bottom that the import of stand-by pump low pressure oil supply pipe is put in hydraulic oil tank, stand-by pump Oil-out is connected with the import of stand-by pump high-pressure oil pipe, and stand-by pump high-pressure oil pipe, stand-by pump high-pressure oil pipe is let out with stand-by pump high pressure The import of pressure pipe is connected, and the middle part of stand-by pump high-pressure oil pipe is provided with stand-by pump high-pressure decompression valve, and stand-by pump high pressure relief pipe goes out Mouth is connected with the oil inlet of the second oil return pipe, the outlet of stand-by pump high-pressure oil pipe and the pressure of standby two-position four-way solenoid directional control valve Hydraulic fluid port is connected, and the T pressure releases hydraulic fluid port of standby two-position four-way solenoid directional control valve is connected with the oil inlet of the second oil return pipe;
The left actuator port of standby two-position four-way solenoid directional control valve passes through left backup line A actuator ports with left explosion-proof valve respectively It is connected with the A actuator ports of right explosion-proof valve, the right actuator port of standby two-position four-way solenoid directional control valve passes through right backup line point It is not connected with the B actuator ports of left explosion-proof valve and the B actuator ports of right explosion-proof valve;
The middle part of the left backup line and right backup line is locked provided with redundant hydraulic, the left back-up one-way valve string of redundant hydraulic lock The middle part of left backup line is associated in, the hydraulic control mouth of the left back-up one-way valve of redundant hydraulic lock passes through pipeline and standby two-position four-way electricity The right actuator port of magnetic reversal valve is connected, and the right back-up one-way valve of redundant hydraulic lock is connected on the middle part of right backup line, standby The hydraulic control mouth of the right back-up one-way valve of hydraulic lock is connected by pipeline with the left actuator port of standby two-position four-way solenoid directional control valve.
The stacker-reclaimer pitching hydraulic system of the present invention, wherein the lateral wall of the hydraulic oil tank is provided with liquid level gauge.
The stacker-reclaimer pitching hydraulic system of the present invention, wherein the bottom of the lateral wall of the hydraulic oil tank is provided with oil extraction Pipe, oil exit pipe are provided with valve.
The stacker-reclaimer pitching hydraulic system of the present invention, it is used to measure hydraulic pressure wherein the top of the hydraulic oil tank is provided with The temperature sensor of oily fuel tank internal hydraulic fluid temperature.
When in use, motor drives variable pump to rotate to the stacker-reclaimer pitching hydraulic system of the present invention, and mechanical energy is turned Pressure energy is turned to, the low pressure oil from hydraulic oil tank is changed into hydraulic oil entering variable pump high-pressure oil pipe, hydraulic oil is through too high Pressuring oil pipe check valve, high-pressure oil pipe filter enter the pressure oil port and main fuel feeding two four of hydraulic control two-position four-way solenoid directional control valve The pressure oil port of electric change valve, wherein hydraulic control two-position four-way solenoid directional control valve can control left hydraulic control one-way valve and right hydraulic control list To valve, and then the break-make of controllable left pipeline and right pipeline, and the left check valve of main hydraulic lock and the right check valve of main hydraulic lock Also the break-make of left pipeline and right pipeline is can control, along with being to lift single pole oil using left explosion-proof valve, the pitching to the left of right explosion-proof valve Cylinder, right pitching lifting single pole oil cylinder fuel feeding, thus very effective can be prevented because of single pitching cylinder upper end rod chamber seal Damage oil leak causes the overall automatic rise of equipment.Therefore, stacker-reclaimer pitching hydraulic system of the invention has security reliability Height, service life length is stable and reliable for performance, can avoid because the damage oil leak of single pitching cylinder upper end rod chamber seal causes to set Standby overall automatic the characteristics of rising.
Stacker-reclaimer pitching hydraulic system of the present invention is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the schematic diagram of the hydraulic system of the stacker-reclaimer pitching hydraulic system of the present invention.
Embodiment
As shown in figure 1, the stacker-reclaimer pitching hydraulic system of the present invention, including the variable pump 2 driven by motor 1, become The oil inlet of amount pump 2 is connected with the outlet of variable pump low pressure oil supply pipe 3, and the middle part of variable pump low pressure oil supply pipe 3 is in series with pipe valve 4, the bottom that the import of variable pump low pressure oil supply pipe 3 is put in hydraulic oil tank 5, oil-out and the variable pump high pressure of variable pump 2 The import of oil pipe 6 is connected, and the middle part of variable pump high-pressure oil pipe 6 is connected with high-pressure oil pipe check valve in turn from front to back(In figure not Draw), high-pressure oil pipe filter 7 and high pressure pipe pressure table 8, high-pressure oil pipe filter 7 fluid can be filtered, to ensure The cleannes of fluid in system.Variable pump high-pressure oil pipe 6 is connected with the import of variable pump high pressure relief pipe 9, and variable pump high pressure is let out The middle part of pressure pipe 9 is provided with variable pump high-pressure decompression valve 10, the outlet and the oil-feed of the first oil return pipe 11 of variable pump high pressure relief pipe 9 Mouth is connected, and the middle part of the first oil return pipe 11 is in series with return filter 12, and return filter 12 can filter to fluid, with true The cleannes of fluid in insurance system.The outlet of first oil return pipe 11 is connected with hydraulic oil tank 5, and variable pump high-pressure oil pipe 6 goes out The import of import and oil cylinder main oil supply pipe 14 of the mouth with hydraulic control oil supply pipe 13 is connected;
The oil-out of the hydraulic control oil supply pipe 13 is connected with the pressure oil port of hydraulic control two-position four-way solenoid directional control valve 15, hydraulic control two The position left actuator port of four-way electromagnetic reversing valve 15 and two oil-feed port phases of right actuator port and liquid control one-way throttle valve 16 Even, the pressure release hydraulic fluid port of hydraulic control two-position four-way solenoid directional control valve 15 is connected by pipeline with the import of the second oil return pipe 17, second time The outlet of oil pipe 17 is connected with hydraulic oil tank 5;
The oil-out of the main oil supply pipe 14 of oil cylinder is connected with the pressure oil port of main fuel feeding two-position four-way solenoid directional control valve 18, main The pressure release hydraulic fluid port of fuel feeding two-position four-way solenoid directional control valve 18 is connected with the oil inlet of the first oil return pipe 11;
The left actuator port of the main fuel feeding two-position four-way solenoid directional control valve 18 is unidirectional by the left side for being sequentially connected in series main hydraulic lock The left pipeline 21 of valve 19 and left choke valve 20 is connected with the main road oil inlet of left hydraulic control one-way valve 22, the liquid of left hydraulic control one-way valve 22 Control oil inlet is connected by hydraulic control fuel feed pump 36 with the oil-out of liquid control one-way throttle valve 16, and the hydraulic control of left hydraulic control one-way valve 22 goes out Hydraulic fluid port is connected by pipeline with the import of second oil return pipe 17;
The right actuator port of the main fuel feeding two-position four-way solenoid directional control valve 18 is unidirectional by the right side for being sequentially connected in series main hydraulic lock The right pipeline 26 of valve 24 and right choke valve 25 is connected with the main road oil inlet of right hydraulic control one-way valve 27, the liquid of right hydraulic control one-way valve 27 Control oil inlet is connected by hydraulic control fuel feed pump 36 with the oil-out of liquid control one-way throttle valve 16, and the hydraulic control of right hydraulic control one-way valve 27 goes out Hydraulic fluid port is connected by pipeline with the import of second oil return pipe 17;
The right side that the hydraulic control mouth of the left check valve 19 of the main hydraulic lock passes through pipeline and main fuel feeding two-position four-way solenoid directional control valve 18 Actuator port is connected, and the hydraulic control mouth of the right check valve 24 of main hydraulic lock passes through pipeline and main fuel feeding two-position four-way solenoid directional control valve 18 Left actuator port be connected;
The outlet of the left hydraulic control one-way valve 22 by be in series with the pipeline of pipe valve respectively with the A actuator ports of left explosion-proof valve 28 and The A actuator ports of right explosion-proof valve 29 are connected, and the outlet of right hydraulic control one-way valve 27 is prevented with a left side respectively by being in series with the pipeline of pipe valve The B actuator ports of quick-fried valve 28 are connected with the B actuator ports of right explosion-proof valve 29, the T pressure releases hydraulic fluid port and right explosion-proof valve of left explosion-proof valve 28 29 T pressure releases hydraulic fluid port is connected with the oil inlet of the 3rd oil return pipe 30, and the middle part of the first oil return pipe 11 is in series with the 3rd oil return pipe and cut Door 31, the outlet of the 3rd oil return pipe 30 is connected with hydraulic oil tank 5;
The A1 actuator ports of the left explosion-proof valve 28 are connected with the rodless cavity of left pitching lifting single pole oil cylinder 32, and left pitching lifting is single The piston rod of rod oil cylinder 32 vertically can stretch out upwards, B1 actuator ports and the left pitching lifting single pole oil of left explosion-proof valve 28 The rod chamber of cylinder 32 is connected, and the valve body of left explosion-proof valve 28 is provided with two left explosion-proof valve air bleeding valves 33;
The A1 actuator ports of the right explosion-proof valve 29 are connected with the rodless cavity of right pitching lifting single pole oil cylinder 34, and right pitching lifting is single The piston rod of rod oil cylinder 34 vertically can stretch out upwards, B1 actuator ports and the right pitching lifting single pole oil of right explosion-proof valve 29 The rod chamber of cylinder 34 is connected, and the valve body of right explosion-proof valve 29 is provided with two right explosion-proof valve air bleeding valves 35;
Also include stand-by pump 37, the oil inlet of stand-by pump 37 is connected with the outlet of stand-by pump low pressure oil supply pipe 38, stand-by pump low pressure The middle part of fuel feed pump 38 is in series with stand-by pump pipe valve 39, and the import of stand-by pump low pressure oil supply pipe 38 is put in hydraulic oil tank 5 Bottom, the oil-out of stand-by pump 37 are connected with the import of stand-by pump high-pressure oil pipe 40, stand-by pump high-pressure oil pipe 40, stand-by pump high pressure Oil pipe 40 is connected with the import of stand-by pump high pressure relief pipe 41, and the middle part of stand-by pump high-pressure oil pipe 40 is provided with stand-by pump high pressure relief Valve 42, the outlet of stand-by pump high pressure relief pipe 41 are connected with the oil inlet of the second oil return pipe 17, and stand-by pump high-pressure oil pipe 40 goes out Mouth is connected with the pressure oil port of standby two-position four-way solenoid directional control valve 43, the T pressure releases oil of standby two-position four-way solenoid directional control valve 43 Mouth is connected with the oil inlet of the second oil return pipe 17;
The left actuator port of standby two-position four-way solenoid directional control valve 43 passes through left backup line 44 A works with left explosion-proof valve 28 respectively The A actuator ports for making hydraulic fluid port with right explosion-proof valve 29 are connected, and the right actuator port of standby two-position four-way solenoid directional control valve 43 passes through the right side Backup line 45 is connected with the B actuator ports of left explosion-proof valve 28 and the B actuator ports of right explosion-proof valve 29 respectively;
The middle part of the left backup line 44 and right backup line 45 is locked provided with redundant hydraulic, and redundant hydraulic is locked left standby unidirectional Valve 46 is connected on the middle part of left backup line 44, the hydraulic control mouth of the left back-up one-way valve 19 of redundant hydraulic lock by pipeline with it is standby The right actuator port of two-position four-way solenoid directional control valve 43 is connected, and the right back-up one-way valve 47 of redundant hydraulic lock is connected on right standby pipe The middle part in road 45, the hydraulic control mouth of the right back-up one-way valve 47 of redundant hydraulic lock pass through pipeline and standby two-position four-way solenoid directional control valve 43 left actuator port is connected.
When in use, can be by stand-by pump 37, stand-by pump high-pressure oil pipe 40, standby if the cisco unity malfunction of variable pump 2 Two-position four-way solenoid directional control valve 43, redundant hydraulic lock explosion-proof valve 28, the fuel feeding of right explosion-proof valve 29 to the left.
As a further improvement on the present invention, the lateral wall of above-mentioned hydraulic oil tank 5 is provided with liquid level gauge 48.
As a further improvement on the present invention, the bottom of the lateral wall of above-mentioned hydraulic oil tank 5 is provided with oil exit pipe 50, oil extraction Pipe 50 is provided with valve.
As a further improvement on the present invention, the top of above-mentioned hydraulic oil tank 5, which is provided with, is used to measure in hydraulic oil tank 5 The temperature sensor 51 of portion's hydraulic fluid temperature.
When in use, motor 1 drives variable pump 2 to rotate to the stacker-reclaimer pitching hydraulic system of the present invention, by mechanical energy Pressure energy is converted into, the low pressure oil from hydraulic oil tank 5 is changed into hydraulic oil entering variable pump high-pressure oil pipe 6, hydraulic oil warp Cross high-pressure oil pipe check valve(It is not drawn into figure), high-pressure oil pipe filter 7 enter the pressure of hydraulic control two-position four-way solenoid directional control valve 15 The pressure oil port of power hydraulic fluid port and main fuel feeding two-position four-way solenoid directional control valve 18, wherein hydraulic control two-position four-way solenoid directional control valve 15 are controllable Left hydraulic control one-way valve 22 and right hydraulic control one-way valve 27 are made, and then can control the break-make of left pipeline 21 and right pipeline 26, and main hydraulic pressure The left check valve 19 of lock and the right check valve 24 of main hydraulic lock also can control the break-make of left pipeline 21 and right pipeline 26, along with being The fuel feeding of single pole oil cylinder 34 is lifted using left explosion-proof valve 28, the pitching to the left of right explosion-proof valve 29 lifting single pole oil cylinder 32, right pitching, thus Very effective it can prevent because the damage oil leak of single pitching cylinder upper end rod chamber seal causes the overall automatic rise of equipment.Cause This, stacker-reclaimer pitching hydraulic system of the invention has security reliability high, and service life is grown, stable and reliable for performance, can keep away Exempt from because single pitching cylinder upper end rod chamber seal damages the characteristics of oil leak causes equipment entirety to rise automatically.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the model of the present invention Enclose and be defined, under the premise of design spirit of the present invention is not departed from, this area ordinary skill technical staff is to the technology of the present invention side The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.

Claims (4)

1. stacker-reclaimer pitching hydraulic system, it is characterised in that:Including by motor(1)The variable pump of driving(2), variable pump (2)Oil inlet and variable pump low pressure oil supply pipe(3)Outlet be connected, variable pump low pressure oil supply pipe(3)Middle part be in series with cut Door(4), variable pump low pressure oil supply pipe(3)Import put in hydraulic oil tank(5)Interior bottom, the variable pump(2)It is fuel-displaced Mouth and variable pump high-pressure oil pipe(6)Import be connected, variable pump high-pressure oil pipe(6)Middle part be connected with high pressure in turn from front to back Oil line check valve, high-pressure oil pipe filter(7)With high pressure pipe pressure table(8), variable pump high-pressure oil pipe(6)With variable pump high pressure Relief tube(9)Import be connected, variable pump high pressure relief pipe(9)Middle part be provided with variable pump high-pressure decompression valve(10), variable pump High pressure relief pipe(9)Outlet and the first oil return pipe(11)Oil inlet be connected, the first oil return pipe(11)Middle part be in series with back Oil strainer(12), the first oil return pipe(11)Outlet and hydraulic oil tank(5)It is connected, variable pump high-pressure oil pipe(6)Outlet With hydraulic control oil supply pipe(13)Import and the main oil supply pipe of oil cylinder(14)Import be connected;
The hydraulic control oil supply pipe(13)Oil-out and hydraulic control two-position four-way solenoid directional control valve(15)Pressure oil port be connected, liquid Control two-position four-way solenoid directional control valve(15)Left actuator port and right actuator port and liquid control one-way throttle valve(16)Two enter Oily port is connected, hydraulic control two-position four-way solenoid directional control valve(15)Pressure release hydraulic fluid port pass through pipeline and the second oil return pipe(17)Import It is connected, the second oil return pipe(17)Outlet and hydraulic oil tank(5)It is connected;
The main oil supply pipe of oil cylinder(14)Oil-out and main fuel feeding two-position four-way solenoid directional control valve(18)Pressure oil port phase Even, main fuel feeding two-position four-way solenoid directional control valve(18)Pressure release hydraulic fluid port and the first oil return pipe(11)Oil inlet be connected;
The main fuel feeding two-position four-way solenoid directional control valve(18)Left actuator port by being sequentially connected in series the left list of main hydraulic lock To valve(19)With left choke valve(20)Left pipeline(21)With left hydraulic control one-way valve(22)Main road oil inlet be connected, left hydraulic control list To valve(22)Hydraulic control oil inlet pass through hydraulic control fuel feed pump(36)With liquid control one-way throttle valve(16)Oil-out be connected, left hydraulic control Check valve(22)Hydraulic control oil-out pass through pipeline and second oil return pipe(17)Import be connected;
The main fuel feeding two-position four-way solenoid directional control valve(18)Right actuator port by being sequentially connected in series the right list of main hydraulic lock To valve(24)With right choke valve(25)Right pipeline(26)With right hydraulic control one-way valve(27)Main road oil inlet be connected, right hydraulic control list To valve(27)Hydraulic control oil inlet pass through hydraulic control fuel feed pump(36)With liquid control one-way throttle valve(16)Oil-out be connected, right hydraulic control Check valve(27)Hydraulic control oil-out pass through pipeline and second oil return pipe(17)Import be connected;
The left check valve of the main hydraulic lock(19)Hydraulic control mouth pass through pipeline and main fuel feeding two-position four-way solenoid directional control valve(18) Right actuator port be connected, the right check valve of main hydraulic lock(24)Hydraulic control mouth changed by pipeline and main fuel feeding two-position four-way electromagnetism To valve(18)Left actuator port be connected;
The left hydraulic control one-way valve(22)Outlet by be in series with the pipeline of pipe valve respectively with left explosion-proof valve(28)A working oils Mouth and right explosion-proof valve(29)A actuator ports be connected, right hydraulic control one-way valve(27)Outlet by being in series with the pipeline point of pipe valve Not with left explosion-proof valve(28)B actuator ports and right explosion-proof valve(29)B actuator ports be connected, left explosion-proof valve(28)T pressure releases Hydraulic fluid port and right explosion-proof valve(29)T pressure releases hydraulic fluid port and the 3rd oil return pipe(30)Oil inlet be connected, the first oil return pipe(11)In Portion is in series with the 3rd oil return pipe pipe valve(31), the 3rd oil return pipe(30)Outlet and hydraulic oil tank(5)It is connected;
The left explosion-proof valve(28)A1 actuator ports and left pitching lifting single pole oil cylinder(32)Rodless cavity be connected, left pitching liter Single pole oil cylinder drops(32)Piston rod vertically can stretch out upwards, left explosion-proof valve(28)B1 actuator ports and left pitching liter Single pole oil cylinder drops(32)Rod chamber be connected, left explosion-proof valve(28)Valve body be provided with two left explosion-proof valve air bleeding valves(33);
The right explosion-proof valve(29)A1 actuator ports and right pitching lifting single pole oil cylinder(34)Rodless cavity be connected, right pitching liter Single pole oil cylinder drops(34)Piston rod vertically can stretch out upwards, right explosion-proof valve(29)B1 actuator ports and right pitching liter Single pole oil cylinder drops(34)Rod chamber be connected, right explosion-proof valve(29)Valve body be provided with two right explosion-proof valve air bleeding valves(35);
Also include stand-by pump(37), stand-by pump(37)Oil inlet and stand-by pump low pressure oil supply pipe(38)Outlet be connected, it is standby Pump low pressure oil supply pipe(38)Middle part be in series with stand-by pump pipe valve(39), stand-by pump low pressure oil supply pipe(38)Import put in hydraulic pressure Fuel tank(5)Interior bottom, stand-by pump(37)Oil-out and stand-by pump high-pressure oil pipe(40)Import be connected, stand-by pump high pressure Oil pipe(40), stand-by pump high-pressure oil pipe(40)With stand-by pump high pressure relief pipe(41)Import be connected, stand-by pump high-pressure oil pipe (40)Middle part be provided with stand-by pump high-pressure decompression valve(42), stand-by pump high pressure relief pipe(41)Outlet and the second oil return pipe(17) Oil inlet be connected, stand-by pump high-pressure oil pipe(40)Outlet and standby two-position four-way solenoid directional control valve(43)Pressure oil port phase Even, standby two-position four-way solenoid directional control valve(43)T pressure releases hydraulic fluid port and the second oil return pipe(17)Oil inlet be connected;
Standby two-position four-way solenoid directional control valve(43)Left actuator port pass through left backup line(44)Respectively with left explosion-proof valve (28)A actuator ports and right explosion-proof valve(29)A actuator ports be connected, standby two-position four-way solenoid directional control valve(43)Right work Make hydraulic fluid port and pass through right backup line(45)Respectively with left explosion-proof valve(28)B actuator ports and right explosion-proof valve(29)B working oils Mouth is connected;
The left backup line(44)With right backup line(45)Middle part provided with redundant hydraulic lock, redundant hydraulic lock it is left standby Check valve(46)It is connected on left backup line(44)Middle part, redundant hydraulic lock left back-up one-way valve(19)Hydraulic control mouth pass through Pipeline and standby two-position four-way solenoid directional control valve(43)Right actuator port be connected, redundant hydraulic lock right back-up one-way valve(47) It is connected on right backup line(45)Middle part, redundant hydraulic lock right back-up one-way valve(47)Hydraulic control mouth by pipeline with it is standby Two-position four-way solenoid directional control valve(43)Left actuator port be connected.
2. stacker-reclaimer pitching hydraulic system according to claim 1, it is characterised in that:The hydraulic oil tank(5)'s Lateral wall is provided with liquid level gauge(48).
3. stacker-reclaimer pitching hydraulic system according to claim 2, it is characterised in that:The hydraulic oil tank(5)'s The bottom of lateral wall is provided with oil exit pipe(50), oil exit pipe(50)It is provided with valve.
4. stacker-reclaimer pitching hydraulic system according to claim 3, it is characterised in that:The hydraulic oil tank(5)'s Top, which is provided with, to be used to measure hydraulic oil tank(5)The temperature sensor of internal hydraulic pressure oil temperature(51).
CN201710980888.3A 2017-10-20 2017-10-20 Stacker-reclaimer pitching hydraulic system Pending CN107830000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710980888.3A CN107830000A (en) 2017-10-20 2017-10-20 Stacker-reclaimer pitching hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710980888.3A CN107830000A (en) 2017-10-20 2017-10-20 Stacker-reclaimer pitching hydraulic system

Publications (1)

Publication Number Publication Date
CN107830000A true CN107830000A (en) 2018-03-23

Family

ID=61648482

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710980888.3A Pending CN107830000A (en) 2017-10-20 2017-10-20 Stacker-reclaimer pitching hydraulic system

Country Status (1)

Country Link
CN (1) CN107830000A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109026865A (en) * 2018-09-30 2018-12-18 中色科技股份有限公司 A kind of hydraulic control circuit of stretching-machine jacking apparatus
CN110182610A (en) * 2019-04-29 2019-08-30 宝钢湛江钢铁有限公司 A kind of intelligence stacker-reclaimer intelligence pitching Hydraulic system and control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205277955U (en) * 2015-12-15 2016-06-01 湖南红宇耐磨新材料股份有限公司 A hydraulic system that is used for automatic pouring of tilting heat preservation stove to control
CN106837946A (en) * 2017-04-07 2017-06-13 大连华锐重工集团股份有限公司 A kind of stacker-reclaimer pitching hydraulic system, closed-loop control system and control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205277955U (en) * 2015-12-15 2016-06-01 湖南红宇耐磨新材料股份有限公司 A hydraulic system that is used for automatic pouring of tilting heat preservation stove to control
CN106837946A (en) * 2017-04-07 2017-06-13 大连华锐重工集团股份有限公司 A kind of stacker-reclaimer pitching hydraulic system, closed-loop control system and control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109026865A (en) * 2018-09-30 2018-12-18 中色科技股份有限公司 A kind of hydraulic control circuit of stretching-machine jacking apparatus
CN110182610A (en) * 2019-04-29 2019-08-30 宝钢湛江钢铁有限公司 A kind of intelligence stacker-reclaimer intelligence pitching Hydraulic system and control method
CN110182610B (en) * 2019-04-29 2021-07-13 宝钢湛江钢铁有限公司 Intelligent pitching hydraulic system of intelligent stacker-reclaimer and control method

Similar Documents

Publication Publication Date Title
CN204704167U (en) Double loop energy storage type hydraulic control slow closing valve hydraulic station
CN206035914U (en) Four jar synchronous hydraulic system of automobile elevator
CN201203530Y (en) Supercharging device of emulsifiable solution valve integrated test stand
CN107830000A (en) Stacker-reclaimer pitching hydraulic system
CN207297487U (en) A kind of edger roll compensating cylinder hydraulic control system
CN202590890U (en) High-performance vertical mill hydraulic system
CN102777446B (en) A kind of oil-water conversion variable displacement emulsion pump station
CN202012516U (en) Hydraulic actuator for automatic drainage system of coal mine
CN204591872U (en) One manufactures oil cylinder performance detecting platform again
CN206299626U (en) Low-loss bottom pouring type pouring machine hydraulic system
CN102824938A (en) Hydraulic turning device for vertical mill
CN203155793U (en) Control system of hydraulic pipe expander
CN201909095U (en) Electro-hydraulic linkage actuating mechanism
CN219081945U (en) Safety valve hydraulic control system
CN205331103U (en) A hydraulic system for controlling paver aircraft bonnet and ceiling lift
CN103899594B (en) Internal expansion type locking cylinder manualemergency operating device and method
CN202732552U (en) Oil-water conversion variable emulsion pump station
CN201825606U (en) Power pumping station for hydraulic elevator/hydraulic lift
CN205371123U (en) Hydraulic pressure slidingtype watertight hydraulic system for door
CN205654627U (en) Hydro -cylinder hydraulic drive system of super large jumbo
CN203604283U (en) Potential energy recovery hydraulic system and engineering machine
CN103899598B (en) Internal expansion type locking cylinder manual-operated emergent tripper and method
CN208037889U (en) A kind of variable-amplitude auxiliary arm rear defence hypsokinesis oil cylinder
CN203176064U (en) Water base medium oil cylinder pressure test device
CN202612248U (en) Combined-type hydraulic cylinder

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20180323

RJ01 Rejection of invention patent application after publication