CN109538551A - A kind of hydraulic system of large-scale bits press - Google Patents
A kind of hydraulic system of large-scale bits press Download PDFInfo
- Publication number
- CN109538551A CN109538551A CN201811621185.2A CN201811621185A CN109538551A CN 109538551 A CN109538551 A CN 109538551A CN 201811621185 A CN201811621185 A CN 201811621185A CN 109538551 A CN109538551 A CN 109538551A
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- cylinder
- fuel tank
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- 239000002828 fuel tank Substances 0.000 claims abstract description 67
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 15
- 239000006071 cream Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 284
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010727 cylinder oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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
- 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
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Abstract
The present invention provides a kind of hydraulic system of large-scale bits press, including an oil pump, fuel tank, pusher oil cylinder and feeding oil cylinder, the outlet of oil pump is connected with the input end of oil inlet working connection, and oil inlet working connection is equipped with pressure regulating valve group, the rodless cavity of pusher oil cylinder and the rodless cavity mutual conduction of feeding oil cylinder；The rodless cavity of pusher oil cylinder passes through first liang of logical inserted valve with the rodless cavity of feeding oil cylinder and is connected with oil inlet working connection；The rodless cavity of pusher oil cylinder and the rodless cavity of feeding oil cylinder pass through second liang of logical inserted valve and fuel tank connection；The rod chamber of pusher oil cylinder is connected with total oil circuit with the rod chamber of feeding oil cylinder, an one way sequence valve is equipped between the rod chamber and total oil circuit of charging oil cylinder, and the b mouth of one way sequence valve is connected with total oil circuit, a mouth of one way sequence valve is connected with the rod chamber of charging oil cylinder.This patent merges integration, reduces component, ensure that normal work.
Description
Technical field
The present invention relates to bits technical field of pressing machine, and in particular to hydraulic system.
Background technique
Bits press includes pusher oil cylinder for pusher, the feeding oil cylinder for feeding and the master cylinder for binder,
More bits press is used currently on the market, and pusher, feeding are all independent sequentially-operatings, and pusher oil cylinder is all made of with feeding oil cylinder
Independent valve is controlled, and component is more, and such working method is more due to acting, and the conversion time needed is also more.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of hydraulic system of large-scale bits press, has solved above-mentioned
At least one technical problem.
The technical scheme is that a kind of hydraulic system of large-scale bits press, including an oil pump, fuel tank, pusher oil cylinder
And feeding oil cylinder, the outlet of the oil pump are connected with the input end of oil inlet working connection, the oil inlet working connection is equipped with pressure regulation
Valve group, which is characterized in that the rodless cavity mutual conduction of the rodless cavity of the pusher oil cylinder and the feeding oil cylinder；
The rodless cavity of the rodless cavity of the pusher oil cylinder and the feeding oil cylinder passes through first liang of logical inserted valve and oil inlet
Working connection is connected；
The rodless cavity of the rodless cavity of the pusher oil cylinder and the feeding oil cylinder passes through second liang of logical inserted valve and fuel tank
Connection；
The rod chamber of the pusher oil cylinder is connected with total oil circuit with the rod chamber of the feeding oil cylinder, the charging oil cylinder
Rod chamber and total oil circuit between be equipped with an one way sequence valve, and b mouth of one way sequence valve is connected with total oil circuit, unidirectionally suitable
The a mouth of sequence valve is connected with the rod chamber of charging oil cylinder；The water conservancy diversion direction of the check valve of the one way sequence valve is from b mouthfuls to a mouthfuls；
Total oil circuit leads to inserted valve by third two and is connected with oil inlet working connection；
Total oil circuit passes through the 4th liang of logical inserted valve and fuel tank connection.
This patent by traditional pusher oil cylinder, feeding oil cylinder oil inlet and the fuel-displaced knot for being all made of independent two logical inserted valves
Structure merges integration, reduces component, ensure that normal work.
The effect of one way sequence valve is to make pusher movement prior to charging, prevents material from not having to release in downtrodden situation.
Check valve sequence valve is opened by pressure from a mouthfuls to b mouthfuls, is unidirectionally to open from b mouthfuls to a mouthfuls.
The oil of oil pump output enters the rodless cavity of pusher oil cylinder and the oil cylinder that feeds, pusher through first liang of logical inserted valve
The oil of the rod chamber of oil cylinder backs into fuel tank through the 4th two-way plug-in valve, pusher oil cylinder advance pusher, the rod chamber for the oil cylinder that feeds
The setting pressure that oil must reach one way sequence valve could pass through, then back into fuel tank through the 4th two-way plug-in valve, before the oil cylinder that feeds
Into charging.And then realize that pusher movement is acted prior to charging.
When feeding oil cylinder with pusher oil cylinder backhaul, while backhaul.
A kind of hydraulic system of large-scale bits press, further includes a composite cylinder for being used for binder, and the composite cylinder includes one living
Plug cylinder and plunger case；The cavity for accommodating plunger is offered on the piston of the piston cylinder, with the piston of the piston cylinder
As the cylinder body of the plunger case, the plunger of the plunger case is fixed on the cylinder body of the piston cylinder, the column of the plunger case
The piston of plug and the piston cylinder surrounds the shoe cream room of a plunger case；
For the rod chamber of the piston cylinder by the 5th inserted valve and oil inlet working connection connection, the rod chamber of the piston cylinder is logical
The 6th inserted valve is crossed to be connected with the fuel tank；
The shoe cream room passes through the 7th inserted valve and the oil inlet working connection connection；
The rodless cavity of the piston cylinder is connected by a hydraulic control prefill valve with oil feeding reservoir, the oil feeding reservoir and fuel tank connection；
The control port of the hydraulic control prefill valve is connected by a solenoid directional control valve with oil pump.
This patent, which passes through, is adopted as composite cylinder for the oil cylinder for being used for binder, is easy to implement the effect of differential backhaul.
When composite cylinder advances: the 7th inserted valve of control is opened, and when the 6th inserted valve is opened, the oil of oil pump output is inserted through the 7th
Dress valve enters plunger case, meanwhile, the oil of the rod chamber of piston cylinder enters fuel tank through the 6th inserted valve, meanwhile, the oil warp of oil feeding reservoir
The rodless cavity that prefill valve fills into piston cylinder is crossed, high velocity, low pressure advances together for auxiliary cylinder and main compressing cylinder.
When composite cylinder backhaul, control solenoid directional control valve is opened, and the 5th inserted valve is opened, and the 7th inserted valve is opened, and oil pump is defeated
Oil liquid out enters the rod chamber of piston cylinder through the 5th inserted valve, and the oil in plunger case passes through the 7th inserted valve and the 6th inserted valve
Into the ante-chamber of, piston cylinder, the oil of piston cylinder rodless cavity backs into oil feeding reservoir through prefill valve, due to transversal in piston cylinder rod chamber
Face area is greater than the cross-sectional area of the shoe cream room of plunger case, and then realizes the differential quick return of piston rod of piston cylinder.
7th inserted valve includes three-way connector, and there are three hydraulic fluid port, three hydraulic fluid port difference for the three-way connector tool
For the second oil of positive first hydraulic fluid port of spool and two spool sides positioned at three-way connector positioned at three-way connector
Mouth and third hydraulic fluid port；
First hydraulic fluid port is connected with oil inlet working connection, second hydraulic fluid port and the shoe cream room connection, the third oil
Plug-in sequence valve is equipped between mouth and the rodless cavity of the piston cylinder.
By having additional plug-in sequence valve, the pressure convenient for the shoe cream room when plunger case reaches opening for plug-in sequence valve
When opening pressure, the shoe cream room of plunger case of the high pressure oil through the 7th inserted valve, and enter piston cylinder through plug-in sequence valve simultaneously
Rodless cavity, prefill valve stop the back cavity repairing to piston cylinder, plunger case and piston cylinder high pressure low-speed forward together.
The pressure regulating valve group includes check valve, the 8th liang of logical inserted valve, and the check valve leads to inserting with described 8th liang
The import of valve with the outlet connection of oil pump；
The check valve setting is led between inserted valve in the oil pump and the third two；
8th inserted valve is arranged between the oil pump and the fuel tank.
This patent is flow backwards by check valve, for oil liquid in anti-locking system to pump, adjusts system by the 8th inserted valve
Input pressure.
The oil inlet working connection is equipped with pressure gauge and pressure transmitter.Convenient for detecting the pressure of oil inlet working connection.
It is further preferred that the oil pump is equipped with even number, two oil pumps are an oil pump group, two oil of same oil pump group
Pump is connect with the rotating shaft transmission of the same motor；
Two oil pumps of the same oil pump group are respectively the first oil pump and the second oil pump, and the outlet of first oil pump passes through
Same check valve is connected with the import of the pressure regulating valve group；
The import that the outlet of second oil pump passes through valve group switching connection fuel tank and pressure regulating valve group.
Convenient for meeting different oil mass delivery requirements.
The bits press is equipped with six, and three bits press are a bits press group, there are two bits press group is set, respectively first
Consider press group and the second bits press group to be worth doing；
The first bits press group and the second bits press group include three oil feeding reservoirs arranged from front to back, described
Three oil feeding reservoirs of the first bits press group constitute left oil feeding reservoir group, and three oil feeding reservoirs of the second bits press group constitute right
Oil feeding reservoir group, left oil feeding reservoir group and right oil feeding reservoir group left and right settings；
In the oil feeding reservoir group of left positioned at two sides oil feeding reservoir by left side cross over pipe with it is centrally located in the oil feeding reservoir group of left
Oil feeding reservoir connection；
Adjacent oil feeding reservoir passes through right side cross over pipe connection in the oil feeding reservoir group of right；
The first bits press group and the second bits press group include three fuel tanks arranged from front to back, and described the
Three oil feeding reservoirs of one bits press group constitute front fuel tank group, and three oil feeding reservoirs of the second bits press group constitute rear fuel tank
It is arranged before and after group, front fuel tank group and rear fuel tank group；
Centrally located oil feeding reservoir and the centrally located fuel tank of rear fuel tank group pass through first total time in the oil feeding reservoir group of left
Oil pipe conducting；The flow of first total oil return pipe is three times of the flow of left side cross over pipe；
Oil feeding reservoir in the oil feeding reservoir group of right positioned at forefront in second total oil return pipe and front fuel tank group by being located at most
The fuel tank at rear is connected；The flow of second total oil return pipe is three times of the flow of right side cross over pipe.
Three traditional oil return pipes are compared, the laying of pipeline, and the flow of single total oil return pipe 2 and tradition three are reduced
Oil return pipe flow is consistent, but the tile size of single total oil return pipe of this patent is the tiling of 3^ (1/2) single oil return pipe
Size.
The lowest part of the left side cross over pipe, the lowest part of the right side cross over pipe, first total oil return pipe and institute
The lowest part for stating second total oil return pipe flushes.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the invention；
Fig. 2 is the arrangement schematic diagram of six bits press of the invention.
In figure: 1 is fuel tank, and 2.1 be the first check valve, and 2.2 be second one-way valve, and 3.1 be the first oil pump, and 3.2 be second
Oil pump, 3.3 be third oil pump, and 3.4 be the 4th oil pump, and 4.1 be first motor, and 4.2 be the second motor, and 5 be pressure gauge, and 6 be pressure
Power transmitter, 7.1 be the first charge valve, and 7.2 be the second charge valve, and 8 be solenoid directional control valve, and 9 be inserting valve group, and 10 be piston
Cylinder, 11 be pusher oil cylinder, and 12 be charging oil cylinder, and 13 be one way sequence valve, and 14 be prefill valve, and 15 be oil feeding reservoir, and 16 be plunger case,
11a is left side cross over pipe, and 12a is right side cross over pipe, and 21 be first total oil return pipe, and 22 be second total oil return pipe.
Specific embodiment
Following further describes the present invention with reference to the drawings.
Referring to Fig. 1 to Fig. 2, a kind of hydraulic system of large-scale bits press, including an oil pump, fuel tank 1, pusher oil cylinder 11 and
The outlet of feeding oil cylinder, oil pump is connected with the input end of oil inlet working connection, and oil inlet working connection is equipped with pressure regulating valve group, pusher oil
The rodless cavity of cylinder 11 and the rodless cavity mutual conduction of feeding oil cylinder；The rodless cavity of pusher oil cylinder 11 and the rodless cavity of feeding oil cylinder are equal
It is connected by first liang of logical inserted valve with oil inlet working connection；The rodless cavity of pusher oil cylinder 11 and the rodless cavity of feeding oil cylinder pass through
Second liang of logical inserted valve and 1 connection of fuel tank；The rod chamber of pusher oil cylinder 11 is connected with total oil circuit with the rod chamber of feeding oil cylinder,
An one way sequence valve 13, and the b mouth of one way sequence valve 13 and total oil circuit are equipped between the rod chamber and total oil circuit of charging oil cylinder 12
It is connected, a mouth of one way sequence valve 13 is connected with the rod chamber of charging oil cylinder 12；The water conservancy diversion direction of the check valve of one way sequence valve 13
For from b mouthfuls to a mouthfuls；Total oil circuit leads to inserted valve by third two and is connected with oil inlet working connection；Total oil circuit passes through the 4th liang of logical inserting
Valve and 1 connection of fuel tank.
This patent by traditional pusher oil cylinder 11, feeding oil cylinder oil inlet and the fuel-displaced knot for being all made of independent two logical inserted valves
Structure merges integration, reduces component, ensure that normal work.The effect of one way sequence valve 13 be make pusher movement prior to
Charging, prevents material from not having to release in downtrodden situation.Check valve sequence valve is opened by pressure from a mouthfuls to b mouthfuls, from b mouthfuls to a
Mouth is unidirectionally to open.The oil of oil pump output enters the nothing of pusher oil cylinder 11 and the oil cylinder 12 that feeds through first liang of logical inserted valve
The oil of rod cavity, the rod chamber of pusher oil cylinder 11 backs into fuel tank 1,11 advance pusher of pusher oil cylinder, charging through the 4th two-way plug-in valve
The setting pressure that the oil of the rod chamber of oil cylinder 12 must reach one way sequence valve 13 could pass through, then return through the 4th two-way plug-in valve
Enter fuel tank 1, charging oil cylinder 12, which advances, to feed.And then realize that pusher movement is acted prior to charging.
When feeding oil cylinder 12 with 11 backhaul of pusher oil cylinder, while backhaul.
A kind of hydraulic system of large-scale bits press, further includes a composite cylinder for being used for binder, composite cylinder includes a piston cylinder
10 and plunger case 16；The cavity for accommodating plunger is offered on the piston of piston cylinder 10, using the piston of piston cylinder 10 as
The cylinder body of plunger case 16, the plunger of plunger case 16 are fixed on the cylinder body of piston cylinder 10, the plunger and piston cylinder 10 of plunger case 16
Piston surround the shoe cream room of a plunger case 16；The rod chamber of piston cylinder 10 passes through the 5th inserted valve and oil inlet working connection connection,
The rod chamber of piston cylinder 10 is connected by the 6th inserted valve and fuel tank 1；Shoe cream room is joined by the 7th inserted valve and oil inlet working connection
It is logical；The rodless cavity of piston cylinder 10 is connected by a hydraulic control prefill valve with oil feeding reservoir 15, oil feeding reservoir 15 and 1 connection of fuel tank；Hydraulic control is filled
The control port of liquid valve is connected by a solenoid directional control valve 8 with oil pump.
7th inserted valve includes three-way connector, and three-way connector tool is respectively to be located at three there are three hydraulic fluid port, three hydraulic fluid ports
Positive first hydraulic fluid port of spool of logical plug connector and the second hydraulic fluid port and third of two spool sides positioned at three-way connector
Hydraulic fluid port；First hydraulic fluid port is connected with oil inlet working connection, the second hydraulic fluid port and shoe cream room connection, the rodless cavity of third hydraulic fluid port and piston cylinder 10
Between be equipped with plug-in sequence valve.
This patent, which passes through, is adopted as composite cylinder for the oil cylinder for being used for binder, is easy to implement the effect of differential backhaul.
When composite cylinder advances: the 7th inserted valve of control is opened, and when the 6th inserted valve is opened, the oil of oil pump output is inserted through the 7th
Dress valve enters plunger case, meanwhile, the oil of the rod chamber of piston cylinder enters fuel tank through the 6th inserted valve, meanwhile, the oil warp of oil feeding reservoir
The rodless cavity that prefill valve fills into piston cylinder is crossed, high velocity, low pressure advances together for plunger case and piston cylinder.
When composite cylinder backhaul, control solenoid directional control valve is opened, and the 5th inserted valve is opened, and the 7th inserted valve is opened, and oil pump is defeated
Oil liquid out enters the rod chamber of piston cylinder through the 5th inserted valve, and the oil in plunger case passes through the 7th inserted valve and the 6th inserted valve
Into the ante-chamber of, piston cylinder, the oil of piston cylinder rodless cavity backs into oil feeding reservoir through prefill valve, due to transversal in piston cylinder rod chamber
Face area is greater than the cross-sectional area of the shoe cream room of plunger case, and then realizes the differential quick return of piston rod of piston cylinder.
By having additional plug-in sequence valve, the pressure convenient for the shoe cream room when plunger case reaches opening for plug-in sequence valve
When opening pressure, the shoe cream room of plunger case of the high pressure oil through the 7th inserted valve, and enter piston cylinder through plug-in sequence valve simultaneously
Rodless cavity, prefill valve stop the back cavity repairing to piston cylinder, plunger case and piston cylinder high pressure low-speed forward together.
Pressure regulating valve group includes check valve, the 8th liang of logical inserted valve, the import of check valve and the 8th liang of logical inserted valve with
The outlet connection of oil pump；Check valve setting is led between inserted valve in oil pump and third two；The setting of 8th inserted valve is in oil pump and oil
Between case.This patent is flow backwards by check valve, for oil liquid in anti-locking system to pump, adjusted by the 8th inserted valve system into
Oil pressure.
Oil pump is equipped with even number, and two oil pumps are an oil pump group, two oil pumps and the same motor of same oil pump group
Rotating shaft transmission connection；Two oil pumps of the same oil pump group are respectively the first oil pump and the second oil pump, and the outlet of the first oil pump is logical
Same check valve is crossed to be connected with the import of pressure regulating valve group；The outlet of second oil pump is by valve group switching connection fuel tank and adjusts
The import of pressure valve group.Convenient for meeting different oil mass delivery requirements.
Valve group is a charge valve.The logical inserted valve of all two is using electric control reversing valve as pilot control valve.Institute
The logical inserted valve of two had constitutes an inserting valve group, and the two logical inserted valves that all two logical inserting valve outlets are connect with fuel tank have overflow
Plug-in unit.
Oil inlet working connection is equipped with pressure gauge and pressure transmitter.Convenient for detecting the pressure of oil inlet working connection.Preferably,
Pressure gauge and pressure transmitter are arranged between pressure regulating valve group and oil pump.
The pressure release oil circuit of one with fuel tank connection are equipped between the rodless cavity and plug-in sequence valve of piston cylinder.On pressure release oil circuit
Equipped with solenoid valve, the electromagnet of solenoid valve is Y11.
The electromagnet of the electric control reversing valve of first liang of logical inserted valve is Y06；The electric control reversing valve of second liang of logical inserted valve
Electromagnet is Y07；The electromagnet that third two leads to the electric control reversing valve of inserted valve is Y04；The electric control reversing of 4th liang of logical inserted valve
The electromagnet of valve is Y05；The electromagnet of the electric control reversing valve of 5th liang of logical inserted valve is Y08；6th liang of logical inserted valve it is automatically controlled
The electromagnet of reversal valve is Y09；The electromagnet of the electric control reversing valve of 7th liang of logical inserted valve is Y10；8th liang of logical inserted valve
The electromagnet of electric control reversing valve is Y03；The electromagnet of solenoid directional control valve between the control port and oil pump of hydraulic control prefill valve is
Y12。
There are two oil pump group is set.The motor of two oil pump groups is respectively first motor 4.1 and the second motor 4.2, and two
Oil pump group is respectively equipped with four oil pumps (respectively the first oil pump 3.1, the second oil pump 3.2, third oil pump 3.3 and the 4th oil pump
3.4) two oil pump groups are separately connected two check valves (respectively the first check valve 2.1 and second one-way valve 2.2), two oil
Pump group is separately connected two charge valves (respectively the first charge valve 7.1, the second charge valve 7.2), and the first charge valve and second adds
Carrying valve includes solenoid directional control valve.The electromagnet of the solenoid directional control valve of first charge valve 7.1 is YV01, the second charge valve 7.2
The electromagnet of solenoid directional control valve is YV02.
A kind of course of work of the hydraulic system of large-scale bits press:
A, no-load run, oil pump export oil liquid driven by the motor and insert through the overflow on charge valve 7 and inserting valve group 9
The direct oil return box 1 of part, system unloaded, oil cylinder does not work；
B, composite cylinder advance, electromagnet YV01, YV02, Y03, Y09, Y10 obtain it is electric, oil pump output oil through insert valve group 9
The 7th inserted valve G the plunger case 16 into composite cylinder, the rod chamber of piston cylinder 10 oil through insert valve group 9 the 6th inserting
Valve F backs into fuel tank, and the rodless cavity of piston cylinder 10 supplements oil liquid by prefill valve 14 from oil feeding reservoir 15, and piston cylinder 10 fast forwards through pressure
Material, the opening when pressure reaches the plug-in sequence valve I pressure in inserting valve group 9, the oil of oil pump output is through in inserting valve group 9
7th inserted valve H and plug-in sequence valve I enters the rodless cavity of piston cylinder 10, and the advance of piston cylinder work speed is pressed into material
Type, pressure constantly rise sender when reaching pressure transmitter setting pressure, electric electromagnet power loss are obtained, under movement stops and enters
One movement；
C, composite cylinder backhaul, electromagnet YV01, YV02, Y03, Y08, Y10, Y11 obtain it is electric, oil pump output oil through inserted valve
5th inserted valve E of group 9 enters the rod chamber of piston cylinder 10, and the oil of the rodless cavity of piston cylinder 10 backs into oil feeding reservoir through prefill valve 14
15, the oil of plunger case 16 enters piston through inserting valve group 9 (the 7th inserted valve G and the 5th inserted valve E) and oil pump are fuel-displaced together
The rod chamber of cylinder 10, is consequently formed differential circuit, makes piston cylinder quick return, and rear electromagnet power loss movement stops and enters in place
Next movement；
D, pusher oil cylinder is advanced, charging oil cylinder advances, and electromagnet YV01, YV02, YV03, Y05, Y06 obtain electric, oil pump output
Oil through inserting valve group 9 in the first inserted valve A simultaneously enter pusher oil cylinder 11 and feed oil cylinder 12 rodless cavity, pusher oil cylinder
The oil of 11 rod chambers backs into fuel tank through the 4th inserted valve D in inserting valve group 9, and 11 advance pusher of pusher oil cylinder, feed oil cylinder 12
The setting pressure that the oil of rod chamber must reach one way sequence valve 13 could pass through, then through the 4th inserted valve D in inserting valve group 9
Fuel tank is backed into, charging oil cylinder 12, which advances, to feed, and the effect of one way sequence valve 13 is to make pusher movement prior to charging, prevents material from not having
Have and released in downtrodden situation, electromagnet thinks that power loss movement stops and enters next movement after charging in place；
E, pusher oil cylinder, charging oil cylinder backhaul, electromagnet YV01, YV02, Y03, Y04, Y07 obtain electric, the oil of oil pump output
Enter the rod chamber of pusher oil cylinder 11 and the oil cylinder 12 that feeds, 11 He of pusher oil cylinder simultaneously through the third inserted valve C in inserting valve group 9
The oil of the rodless cavity of charging oil cylinder 12 backs into fuel tank, pusher oil cylinder and charging oil cylinder time through the second inserted valve B in inserting valve group 9
Journey completes a mass pressing process.
Hydraulic system was following two points than original faster reason: first is that the advance of pusher oil cylinder and the oil cylinder that feeds and
Retrogressing be simultaneously it is electric, electromagnetism obtains the reflecting time of power loss time and valve when reducing single movement；Second is that main compressing cylinder returns
Cheng Liyong differential circuit accelerates oil cylinder speed.
For detecting the limit switch of the movement process of the piston rod of piston cylinder there are two being set in piston cylinder.
Limit switch is to penetrating sensing device, to penetrate sensing device include infrared light-emitting component in sustained height, red
Outer photosensitive sensor, green luminescence element, green light sensitive sensor, ultraviolet ray emitting element and ultraviolet dependent sensor；
Infrared light-emitting component is oppositely arranged with infrared photosensitive sensor, and the green luminescence element is opposite with green light sensitive sensor to be set
It sets, ultraviolet ray emitting element is oppositely arranged with ultraviolet dependent sensor.Convenient for being convenient for real by the structure of optimization limit switch
While now to the detection of the movement process of piston rod, the coloration of hydraulic oil can also be detected, according to coloration by limit switch
Analysis obtains the temperature and density of hydraulic oil.Early period adjusts according to the different temperature of hydraulic oil, obtains infrared photosensitive biography afterwards
Sensor, green light sensitive sensor and the corresponding numerical information of ultraviolet dependent sensor, and record chrominance information, density letter
Breath, is stored in database, and the later period carries out the comparison of data, obtains the temperature and density information of current hydraulic oil.
It considers press to be worth doing and is equipped at least two, every bits press includes a fuel tank and an oil feeding reservoir.At least two bits
The fuel tank mutual conduction of press, adjacent oil feeding reservoir passes through cross over pipe connection in the oil feeding reservoir of at least two bits press.At least two
Any one oil feeding reservoir of platform bits press is connected by a total oil return pipe with fuel tank closest at least two bits press；
The flow of total oil return pipe is the flow of cross over pipe and the product of bits press number.
Referring to fig. 2, bits press is equipped with six, and three bits press are a bits press group, there are two bits press group is set, respectively
First bits press group and the second bits press group；First bits press group includes three with the second bits press group and arranges from front to back
Oil feeding reservoir, first bits press group three oil feeding reservoirs 15 constitute left oil feeding reservoir group, second bits press group three oil feeding reservoirs
15 constitute right oil feeding reservoir group, left oil feeding reservoir group and right oil feeding reservoir group left and right settings；It is located at two sides in the oil feeding reservoir group of left
Oil feeding reservoir pass through oil feeding reservoir connection centrally located in left side cross over pipe 11a and left oil feeding reservoir group；In the oil feeding reservoir group of right
Adjacent oil feeding reservoir passes through right side cross over pipe 12a connection；First bits press group with second bits press group include three the pasts extremely
The fuel tank 1 arranged afterwards, three oil feeding reservoirs 15 of the first bits press group constitute front fuel tank group, three repairings of the second bits press group
Case 15 constitutes rear fuel tank group, is arranged before and after front fuel tank group and rear fuel tank group；Centrally located benefit in the oil feeding reservoir group of left
Fuel tank and the centrally located fuel tank of rear fuel tank group are connected by first total oil return pipe 21；The flow of first total oil return pipe 21 is left
Three times of the flow of side cross over pipe 11a；In the oil feeding reservoir group of right positioned at forefront oil feeding reservoir by the second total oil return pipe 22 with
It is connected in the fuel tank group of front positioned at the fuel tank of rearmost；The flow of second total oil return pipe 22 is the flow of right side cross over pipe 12a
Three times.
Three traditional oil return pipes are compared, the laying of pipeline, and the flow of single total oil return pipe and tradition three are reduced
Oil return pipe flow is consistent, but the tile size of single total oil return pipe of this patent is the tiling of 3^ (1/2) single oil return pipe
Size.
The lowest part of left side cross over pipe, the lowest part of right side cross over pipe, first total oil return pipe and second total oil return pipe
Lowest part flushes.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (8)
1. a kind of hydraulic system of large-scale bits press, including an oil pump, fuel tank, pusher oil cylinder and feeding oil cylinder, the oil pump
Outlet be connected with the input end of oil inlet working connection, the oil inlet working connection be equipped with pressure regulating valve group, which is characterized in that it is described
The rodless cavity mutual conduction of the rodless cavity of pusher oil cylinder and the feeding oil cylinder；
The rodless cavity of the rodless cavity of the pusher oil cylinder and the feeding oil cylinder passes through first liang of logical inserted valve and the main oil of oil inlet
Road is connected；
The rodless cavity of the rodless cavity of the pusher oil cylinder and the feeding oil cylinder passes through second liang of logical inserted valve and fuel tank connection；
The rod chamber of the pusher oil cylinder is connected with total oil circuit with the rod chamber of the feeding oil cylinder, and the charging oil cylinder has
An one way sequence valve is equipped between rod cavity and total oil circuit, and the b mouth of one way sequence valve is connected with total oil circuit, one way sequence valve
A mouth with charging oil cylinder rod chamber be connected；The water conservancy diversion direction of the check valve of the one way sequence valve is from b mouthfuls to a mouthfuls；
Total oil circuit leads to inserted valve by third two and is connected with oil inlet working connection；
Total oil circuit passes through the 4th liang of logical inserted valve and fuel tank connection.
2. a kind of hydraulic system of large-scale bits press according to claim 1, it is characterised in that: further include one for binder
Composite cylinder, the composite cylinder include a piston cylinder and plunger case；It offers on the piston of the piston cylinder for accommodating column
The cavity of plug, using the piston of the piston cylinder as the cylinder body of the plunger case, the plunger of the plunger case is fixed on the work
On the cylinder body of plug cylinder, the piston of the plunger of the plunger case and the piston cylinder surrounds the shoe cream room of a plunger case；
For the rod chamber of the piston cylinder by the 5th inserted valve and oil inlet working connection connection, the rod chamber of the piston cylinder passes through the
Six inserted valves are connected with the fuel tank；
The shoe cream room passes through the 7th inserted valve and the oil inlet working connection connection；
The rodless cavity of the piston cylinder is connected by a hydraulic control prefill valve with oil feeding reservoir, the oil feeding reservoir and fuel tank connection；
The control port of the hydraulic control prefill valve is connected by a solenoid directional control valve with oil pump.
3. a kind of hydraulic system of large-scale bits press according to claim 2, it is characterised in that: the 7th inserted valve packet
Three-way connector is included, there are three hydraulic fluid port, three hydraulic fluid ports to be respectively located at the spool of three-way connector just for the three-way connector tool
First hydraulic fluid port in face and the second hydraulic fluid port and third hydraulic fluid port of two spool sides positioned at three-way connector；
First hydraulic fluid port is connected with oil inlet working connection, second hydraulic fluid port and the shoe cream room connection, the third hydraulic fluid port with
Plug-in sequence valve is equipped between the rodless cavity of the piston cylinder.
4. a kind of hydraulic system of large-scale bits press according to claim 2, it is characterised in that: the pressure regulating valve group packet
Check valve, the 8th liang of logical inserted valve are included, the import of the check valve and the 8th liang of logical inserted valve joins with the outlet of oil pump
It is logical；
The check valve setting is led between inserted valve in the oil pump and the third two；
8th inserted valve is arranged between the oil pump and the fuel tank.
5. a kind of hydraulic system of large-scale bits press according to claim 1, it is characterised in that: on the oil inlet working connection
Equipped with pressure gauge and pressure transmitter.
6. a kind of hydraulic system of large-scale bits press according to claim 1, it is characterised in that: the oil pump is equipped with even number
A, two oil pumps are an oil pump group, and two oil pumps of same oil pump group are connect with the rotating shaft transmission of the same motor；
Two oil pumps of the same oil pump group are respectively the first oil pump and the second oil pump, and the outlet of first oil pump passes through same
Check valve is connected with the import of the pressure regulating valve group；
The import that the outlet of second oil pump passes through valve group switching connection fuel tank and pressure regulating valve group.
7. a kind of hydraulic system of large-scale bits press according to claim 1, it is characterised in that: the bits press is equipped with six
Platform, three bits press are a bits press group, there are two bits press group is set, the respectively first bits press group and the second bits press
Group；
The first bits press group and the second bits press group include three oil feeding reservoirs arranged from front to back, and described first
Three oil feeding reservoirs for considering press group to be worth doing constitute left oil feeding reservoir group, and three oil feeding reservoirs of the second bits press group constitute right repairing
Case group, left oil feeding reservoir group and right oil feeding reservoir group left and right settings；
Oil feeding reservoir in the oil feeding reservoir group of left positioned at two sides passes through benefit centrally located in left side cross over pipe and left oil feeding reservoir group
Fuel tank connection；
Adjacent oil feeding reservoir passes through right side cross over pipe connection in the oil feeding reservoir group of right；
The first bits press group and the second bits press group include three fuel tanks arranged from front to back, first bits
Three oil feeding reservoirs of press group constitute front fuel tank group, and three oil feeding reservoirs of the second bits press group constitute rear fuel tank group,
It is arranged before and after front fuel tank group and rear fuel tank group；
Centrally located oil feeding reservoir and the centrally located fuel tank of rear fuel tank group pass through first total oil return pipe in the oil feeding reservoir group of left
Conducting；The flow of first total oil return pipe is three times of the flow of left side cross over pipe；
Oil feeding reservoir in the oil feeding reservoir group of right positioned at forefront is by being located at rearmost in second total oil return pipe and front fuel tank group
Fuel tank conducting；The flow of second total oil return pipe is three times of the flow of right side cross over pipe.
8. a kind of hydraulic system of large-scale bits press according to claim 7, it is characterised in that: the left side cross over pipe
Lowest part, the lowest part of the right side cross over pipe, the lowest part of first total oil return pipe and second total oil return pipe are neat
It is flat.
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| CN201811621185.2A CN109538551B (en) | 2018-12-28 | 2018-12-28 | Hydraulic system of large chip press |
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| CN201811621185.2A CN109538551B (en) | 2018-12-28 | 2018-12-28 | Hydraulic system of large chip press |
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| CN109538551B CN109538551B (en) | 2023-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519295A (en) * | 2020-10-20 | 2021-03-19 | 江苏华宏科技股份有限公司 | Waste metal automatic packaging flow production line and packaging method thereof |
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| CN109538551B (en) | 2023-11-14 |
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