CN106402064A - Hydraulic system of tear bomb powder hydraulic machine - Google Patents
Hydraulic system of tear bomb powder hydraulic machine Download PDFInfo
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- CN106402064A CN106402064A CN201610295464.9A CN201610295464A CN106402064A CN 106402064 A CN106402064 A CN 106402064A CN 201610295464 A CN201610295464 A CN 201610295464A CN 106402064 A CN106402064 A CN 106402064A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0052—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a hydraulic system of a tear bomb powder hydraulic machine. The hydraulic system is characterized in that the hydraulic system of the tear bomb powder hydraulic machine comprises a control system, a cartridge valve system, an auxiliary system and an execution system; the control system is connected with the cartridge valve system and the auxiliary system; and the execution system is connected with the cartridge valve system. According to the hydraulic system of the tear bomb powder hydraulic machine, automatic circulation of a series of process actions such as constant-volume filling, pre-pressing, floating pressing, post-pressing, core pulling, demolding and piece taking is achieved, the pressing force, the filling amount, the pressing stroke and the like of the hydraulic system can be accurately adjusted, the repeated locating precision of key positions is smaller than +/-0.05 mm, the size and density consistency and uniformity of products are ensured, and the efficiency is eighteen times that of an original universal hydraulic machine.
Description
Technical field
The present invention relates to a kind of hydraulic system, more particularly, to a kind of tear bombnoun powder hydraulic press hydraulic system.
Background technology
Tear bombnoun powder hydraulic press is applied to the automatically dry-pressing formed of the powder based article such as powder metallurgy, tear bombnoun, is powder
Powder material industry produces the requisite crucial one-tenth of product complex-shaped, that formed precision is high, moulding process difficulty is big in enormous quantities
Type equipment.
But, current tear bombnoun former is used mostly universal press, and general press structure is complicated, urging of can completing
Tear bullet powder hydraulic pressure operation is single to use that point mould hydraulic pressure manufactures, efficiency is low, low precision, causes the tear bombnoun produced to produce
Product produce huge quality and stir, and therefore product properties uniformity is difficult to ensure that, seriously constrains the technique progress of industry, and enters
Jaws equipment expensive it is difficult to penetration and promotion.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of tear bombnoun powder hydraulic press hydraulic system, it is possible to increase product
Dimensional accuracy, density, solve the problems, such as product uniformity, uniformity.
For solving above-mentioned technical problem, the technical scheme is that：A kind of tear bombnoun powder hydraulic press hydraulic system, its
Innovative point is：This tear bombnoun powder hydraulic press hydraulic system includes：Control system, plug-in mounting valve system, accessory system and execution
System；Control system is connected with plug-in mounting valve system and accessory system, and execution system is connected with plug-in mounting valve system；
Described control system include motor, axial plunger pump, vane pump, oil filter, cooler, stop valve, electromagnetic relief valve and
Fuel tank；Described motor is connected with axial plunger pump and vane pump respectively, drives axial plunger pump and vane pump to draw from fuel tank
Hydraulic oil, axial plunger pump and vane pump are connected with fuel tank respectively, and are respectively arranged with stop valve between fuel tank and two pumps, axially
Plunger displacement pump is mounted on oil filter with the delivery outlet of vane pump, and the delivery outlet of vane pump is parallel with an electromagnetic relief valve, and electromagnetism overflows
Stream valve is connected with fuel tank, and cooler is arranged in the loop of control system；
Described execution system includes：Master cylinder, feeding cylinder, take blame for others, lower center oil cylinder, O-shaped three-position four-way valve, p-type 3-position 4-way
Valve, stacked unidirectional throttle valve, Superimposed relief valve and stacking type hydraulic control check valve；Described master cylinder upper end is provided with topping up
Valve, master cylinder is provided with hydraulic fluid port Aa and hydraulic fluid port Ab；Described feeding cylinder is provided with hydraulic fluid port Ba with hydraulic fluid port Bb, hydraulic fluid port Ba and hydraulic fluid port Bb respectively
Connect with two stacked unidirectional throttle valves, reconnect after series connection on the hydraulic fluid port Oca and hydraulic fluid port Ocb of O-shaped three-position four-way valve c, O
The hydraulic fluid port Oct and hydraulic fluid port Ocp of type three-position four-way valve c passes through hydraulic fluid port Paa and Pab phase respectively with p-type three-position four-way valve a for the pipeline
Even；On described lower center oil cylinder is arranged on and takes blame for others, lower center oil cylinder is provided with hydraulic fluid port Ca and hydraulic fluid port Cb, the hydraulic fluid port of lower center oil cylinder
Ca is connected with the hydraulic fluid port Pap of p-type three-position four-way valve a, after the hydraulic fluid port Cb of lower center oil cylinder is connected with stacking type hydraulic control check valve
The hydraulic fluid port Pat being connected to p-type three-position four-way valve a is connected, and is parallel with one and is superimposed between stacking type hydraulic control check valve and hydraulic fluid port Cb
Formula overflow valve；Described take blame for others on lower center oil cylinder is installed, take blame for others and be provided with two hydraulic fluid port Da and Db；
Described plug-in mounting valve system includes inserted valve, H type three-position four-way valve, O-shaped three-position four-way valve, two position two-way valve, overflow valve, list
To ball valve, working connection pipeline and auxiliary oil circuit pipeline；Inserted valve a is connected with H type three-position four-way valve, and H type three-position four-way valve controls
Inserted valve a, inserted valve a are arranged on auxiliary oil circuit pipeline, and the hydraulic fluid port ax and hydraulic fluid port ay of inserted valve a are connected on auxiliary oil circuit pipeline,
The hydraulic fluid port az of inserted valve a and being connected of working connection pipeline；Inserted valve b is connected with O-shaped three-position four-way valve a, O-shaped three-position four-way valve a
Inserted valve b, inserted valve b is controlled to connect with inserted valve a, the hydraulic fluid port bx and hydraulic fluid port by of inserted valve b are connected on auxiliary oil circuit pipeline,
The hydraulic fluid port bz of inserted valve b is connected with inserted valve e；
Take blame for others oil circuit control and master cylinder oil circuit control be parallel with successively on described working connection pipeline, described take blame for others on oil circuit control
O-shaped three-position four-way valve b is installed, the hydraulic fluid port Obt of O-shaped three-position four-way valve b is connected with working connection pipeline, O-shaped three-position four-way valve b's
Hydraulic fluid port Oba is connected with the hydraulic fluid port Da taking blame for others, and is connected with a pipeline, the oil of O-shaped three-position four-way valve b between hydraulic fluid port Da and hydraulic fluid port Oba
Mouth Obp is connected with this pipeline, this pipeline is provided with non-return valve, its other end is connected on auxiliary oil circuit pipeline, connecting portion
On the pipeline that inserted valve a is connected with inserted valve b；The hydraulic fluid port Obb of O-shaped three-position four-way valve b is connected with the hydraulic fluid port Db taking blame for others,
Centre is parallel with the floating compacting oil circuit that two position two-way valve a controls overflow valve a to be formed；Also it is parallel with one on working connection pipeline to send
Material earthen pipe road, one end of this pipeline is connected with working connection pipeline, and the other end is connected to O-shaped three-position four-way valve c hydraulic fluid port Ocp and p-type
On the pipeline that three-position four-way valve a hydraulic fluid port Pa is in series；
On described master cylinder oil circuit control, a pipeline is connected with the replenishing valve on master cylinder, and this pipeline is provided with two position two-way valve
b；On auxiliary oil circuit pipeline, inserted valve b hydraulic fluid port bz is connected on master cylinder hydraulic fluid port Ab by another pipeline, this pipeline is provided with by
The inserted valve e that Solenoid ball valve controls, is also parallel with an inserted valve d being controlled by two position two-way valve d, the hydraulic fluid port dx of this inserted valve d
It is connected with this pipeline, hydraulic fluid port dz is in parallel with working connection pipeline, this pipeline is also parallel with two position two-way valve e, this two position two-way valve e
Hydraulic fluid port eb be connected with this pipeline, hydraulic fluid port et be connected to hydraulic fluid port Oba and hydraulic fluid port Da series connection pipeline on；On working connection pipeline also simultaneously
It is associated with a pipeline, one end of this pipeline is connected on the Aa hydraulic fluid port of master cylinder, and the other end is connected on working connection pipeline, this pipeline
On the inserted valve c being controlled by two position two-way valve c is installed；The output of axial plunger pump in described working connection pipeline and control system
End is connected, and auxiliary oil circuit pipeline is connected with the cooler in control system；
Described accessory system includes：P-type three-position four-way valve, superposing type one way sequence valve and lower auxiliary cylinders；Described superposing type is unidirectional
Sequence valve a is connected with lower auxiliary cylinders a, and after series connection, two ends are connected on the hydraulic fluid port of p-type three-position four-way valve c, forms auxiliary oil way a；
Superposing type one way sequence valve b is connected with lower auxiliary cylinders b, and after series connection, two ends are connected on the hydraulic fluid port of p-type three-position four-way valve b, is formed
Auxiliary oil way b；It is connected to the output end of vane pump after auxiliary oil way a is in parallel with auxiliary oil way b.
Further, this system is provided with some shock-proof pressure gauges being controlled by pressure meter switch series connection.
Further, a hydraulic fluid port of H type three-position four-way valve is in series with remote valve.
Further, a pressure switch a is parallel with the pipeline that working connection pipeline is connected with master cylinder hydraulic fluid port Aa,
It is parallel with a pressure switch b on the pipeline that O-shaped three-position four-way valve b hydraulic fluid port Obb is connected with the hydraulic fluid port Da that takes blame for others.
Further, due to the particularity of the compressing technique of tear-gas ammunition powder, motor adopts fire-proof motor, fluid
The type of cooling uses water-cooled cooler.
It is an advantage of the current invention that：This hydraulic system is precompressed by the way of triple pressurizations, floats and suppress, press afterwards and draw
The advanced powder technology of bottom knockout, while ensureing that product reaches two-way pressing result, and precompressed, float compacting, after
The distance of pressure and speed can be adjusted according to different products, to ensure being uniformly distributed of asymmetric parts density.
This tear bombnoun powder hydraulic press hydraulic system is selected with protectiveness stripping action using the general demoulding, permissible
When effectively reducing the demoulding, deformation and implosion are possible, to improve the qualification rate of product.
This tear bombnoun powder hydraulic press hydraulic system achieves constant volume filler, precompressed, compacting of floating, rear pressure, core pulling, takes off
The automatic cycle of the series of process action such as mould, pickup, its press power, amount of filler, pressing stroke etc. all can accurately adjust, key
The resetting at position is accurately less than ± 0.05mm it is ensured that the uniformity of product size and density, uniformity, and efficiency is original
The ten of Universal hydraulic press are octuple.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the hydraulic schematic diagram of this tear bombnoun powder hydraulic press hydraulic system.
Fig. 2 is the hydraulic principle partial enlarged drawing of plug-in mounting valve system.
Fig. 3 is the partial enlarged drawing taken blame for others with feeding cylinder hydraulic principle.
Fig. 4 is the partial enlarged drawing of control system and accessory system.
As shown in Figures 1 to 4：1st, motor；2nd, axial plunger pump；3rd, cooler；4th, oil filter；5th, inserted valve；6th, press
Power table switchs；7th, remote valve；8th, shock-proof pressure gauge；9th, Superimposed relief valve；10th, stacking type hydraulic control check valve；11st, master cylinder；
12nd, take blame for others；13rd, O-shaped three-position four-way valve；14th, p-type three-position four-way valve；15th, H type three-position four-way valve；16th, pressure switch；17、
Replenishing valve；18th, vane pump；19th, stop valve；20th, superposing type one way sequence valve；21st, stacked unidirectional throttle valve；22nd, electromagnetism overflows
Stream valve；23rd, two position two-way valve；24th, Solenoid ball valve；25th, overflow valve；26th, fuel tank；27th, lower center oil cylinder；28th, feeding cylinder；29、
Non-return valve；30 working connection pipelines；31st, auxiliary oil circuit pipeline；32nd, take blame for others oil circuit control；33rd, master cylinder oil circuit control；34th, auxiliary under
Help cylinder.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but not therefore by this
Bright it is limited among described scope of embodiments.
A kind of tear bombnoun powder hydraulic press hydraulic system as shown in Figures 1 to 4, this tear bombnoun powder hydraulic press hydraulic pressure system
System includes：Control system, plug-in mounting valve system, accessory system and execution system；Control system and plug-in mounting valve system and accessory system
It is connected, execution system is connected with plug-in mounting valve system.
Control system includes motor 1, axial plunger pump 2, vane pump 18, oil filter 4, cooler 3, stop valve 19, electromagnetism
Overflow valve 22 and fuel tank 26；Described motor 1 is connected with axial plunger pump 2 and vane pump 18 respectively, drives axial plunger pump 2 and leaf
Piece pump 18 draw oil from fuel tank 26, axial plunger pump 2 and vane pump are connected with fuel tank 26 respectively, and fuel tank 26 and two pumps
Between be respectively arranged with stop valve 19, axial plunger pump 2 is mounted on oil filter 4, vane pump 18 with the delivery outlet of vane pump 18
Delivery outlet be parallel with an electromagnetic relief valve 22, electromagnetic relief valve 22 is connected with fuel tank 26, and cooler 3 is arranged on control system
In loop.
Execution system includes：Master cylinder 11, feeding cylinder 28, take blame for others 12, lower center oil cylinder 27, O-shaped three-position four-way valve 13, P
Type three-position four-way valve 14, stacked unidirectional throttle valve 21, Superimposed relief valve 9 and stacking type hydraulic control check valve 10；Described main oil
Cylinder 11 upper end is provided with replenishing valve 17, and master cylinder 11 is provided with hydraulic fluid port Aa and hydraulic fluid port Ab；Described feeding cylinder 28 be provided with hydraulic fluid port Ba with
Hydraulic fluid port Bb, hydraulic fluid port Ba and hydraulic fluid port Bb are connected with two stacked unidirectional throttle valves 21 respectively, reconnect at O-shaped three four after series connection
On the hydraulic fluid port Oca and hydraulic fluid port Ocb of port valve 13c, the hydraulic fluid port Oct and hydraulic fluid port Ocp of O-shaped three-position four-way valve 13c pass through pipeline respectively with P
The hydraulic fluid port Paa of type three-position four-way valve 14a is connected with Pab；Described lower center oil cylinder 27 is arranged on takes blame for others on 12, lower center oil cylinder 27
Be provided with hydraulic fluid port Ca and hydraulic fluid port Cb, the hydraulic fluid port Ca of lower center oil cylinder 27 is connected with the hydraulic fluid port Pap of p-type three-position four-way valve 14a, lower in
The hydraulic fluid port Cb of heart oil cylinder 27 is connected to the hydraulic fluid port Pat phase of p-type three-position four-way valve 14a with stacking type hydraulic control check valve 10 after connecting
Even, it is parallel with a Superimposed relief valve 9 between stacking type hydraulic control check valve 10 and hydraulic fluid port Cb；Described taking blame for others is provided with down on 12
Center oil cylinder 27, taking blame for others 12 is provided with two hydraulic fluid port Da and Db.
Plug-in mounting valve system includes inserted valve 5, H type three-position four-way valve 15, O-shaped three-position four-way valve 13, two position two-way valve 23, overflows
Stream valve 25, non-return valve 29, working connection pipeline 30 and auxiliary oil circuit pipeline 31；Inserted valve 5a is connected with H type three-position four-way valve 15, H
Type three-position four-way valve 15 controls inserted valve 5a, inserted valve 5a to be arranged on auxiliary oil circuit pipeline 31, the hydraulic fluid port ax of inserted valve 5a with
Hydraulic fluid port ay is connected on auxiliary oil circuit pipeline 31, the hydraulic fluid port az of inserted valve 5a and being connected of working connection pipeline 30；Inserted valve 5b with O-shaped
Three-position four-way valve 13a is connected, and O-shaped three-position four-way valve 13a controls inserted valve 5b, inserted valve 5b to connect with inserted valve 5a, plug-in mounting
The hydraulic fluid port bx and hydraulic fluid port by of valve 5b are connected on auxiliary oil circuit pipeline 31, and the hydraulic fluid port bz of inserted valve 5b is connected with inserted valve 5e.
Take blame for others oil circuit control 32 and master cylinder oil circuit control 33, described control of taking blame for others are parallel with successively on working connection pipeline 30
O-shaped three-position four-way valve 13b is provided with oil circuit 32, the hydraulic fluid port Obt of O-shaped three-position four-way valve 13b is connected with working connection pipeline 30, O
The hydraulic fluid port Oba of type three-position four-way valve 13b is connected with the 12 hydraulic fluid port Da of taking blame for others, and is connected with a pipeline between hydraulic fluid port Da and hydraulic fluid port Oba,
The hydraulic fluid port Obp of O-shaped three-position four-way valve 13b is connected with this pipeline, and this pipeline is provided with non-return valve 29, and its other end is connected to
On auxiliary oil circuit pipeline 31, connecting portion is on the pipeline that inserted valve 5a is connected with inserted valve 5b；O-shaped three-position four-way valve 13b's
Hydraulic fluid port Obb is connected with the hydraulic fluid port Db taking blame for others, and centre is parallel with the floating compacting that two position two-way valve 23a controls overflow valve 25 to be formed
Oil circuit；One feeding earthen pipe road is also parallel with working connection pipeline 30, one end of this pipeline is connected with working connection pipeline 30, the other end
It is connected on the pipeline that O-shaped three-position four-way valve 13c hydraulic fluid port Ocp is in series with p-type three-position four-way valve 13a hydraulic fluid port Pa.
On master cylinder oil circuit control 33, a pipeline is connected with the replenishing valve 17 on master cylinder 11, and this pipeline is provided with two
Two-port valve 23b；On auxiliary oil circuit pipeline 31, inserted valve 5b hydraulic fluid port bz is connected on master cylinder 11 hydraulic fluid port Ab by another pipeline, this pipe
The inserted valve 5e being controlled by Solenoid ball valve 24 is provided with road, is also parallel with an inserted valve 5d being controlled by two position two-way valve 23d,
The hydraulic fluid port dx of this inserted valve 5d is connected with this pipeline, and hydraulic fluid port dz is in parallel with working connection pipeline 30, and this pipeline is also parallel with two
Two-port valve 23e, the hydraulic fluid port eb of this two position two-way valve 23e is connected with this pipeline, and hydraulic fluid port et is connected to hydraulic fluid port Oba and hydraulic fluid port Da series connection
Pipeline on；One pipeline is also parallel with working connection pipeline 30, one end of this pipeline is connected on the Aa hydraulic fluid port of master cylinder 11, separately
One end is connected on working connection pipeline 30, and this pipeline is provided with the inserted valve 5c being controlled by two position two-way valve 23c；Described main oil
Road pipeline 30 is connected with the output end of axial plunger pump in control system 2, the cooler 3 in auxiliary oil circuit pipeline 31 and control system
Series connection.
Accessory system includes：P-type three-position four-way valve 14, superposing type one way sequence valve 20 and lower auxiliary cylinders 34；Described superposition
Formula one way sequence valve 20a is connected with lower auxiliary cylinders 34a, and after series connection, two ends are connected on the hydraulic fluid port of p-type three-position four-way valve 14c, shape
Become auxiliary oil way a；Superposing type one way sequence valve 20b is connected with lower auxiliary cylinders 34b, and after series connection, two ends are connected to p-type 3-position 4-way
On the hydraulic fluid port of valve 14b, form auxiliary oil way b；It is connected to the output of vane pump 18 after auxiliary oil way a is in parallel with auxiliary oil way b
End.
The shock-proof pressure gauge 8 of some controls of being connected by pressure meter switch 6 is provided with this system.
A hydraulic fluid port of H type three-position four-way valve 15 is in series with remote valve 7.
The pipeline that working connection pipeline 30 is connected with master cylinder 11 hydraulic fluid port Aa is parallel with a pressure switch 16a, O-shaped
It is parallel with a pressure switch 16b on the pipeline that three-position four-way valve 13b hydraulic fluid port Obb is connected with the 12 hydraulic fluid port Da that take blame for others.
Due to the particularity of the compressing technique of tear-gas ammunition powder, motor 1 adopts fire-proof motor, the type of cooling of fluid
Use water-cooled cooler.
The operation principle of this tear bombnoun powder hydraulic press hydraulic system is：Control the switch of magnetic valve suitable by PLC program
Sequence, crawl, automatic cycle and other work side of this tear bombnoun powder hydraulic press realized by the sequence of movement table according to magnetic valve
Formula, completes the manufacturing process to tear bombnoun powder, and specific working method is as follows：
Point dynamic formula work：Motor 1 drives axial plunger pump 2 and vane pump 18 so that hydraulic oil is pumped out through oil filter 4 from fuel tank 26
Enter working connection pipeline, through the inserted valve 5a being controlled by H type three-position four-way valve 15, YA1, YA3 and YA5 open hydraulic pressure to hydraulic oil
Through inserted valve 5c, YA7 opens oil, and other electromagnetic valve switch are turned off, and hydraulic oil enters from A2 from the A1 hydraulic fluid port of master cylinder 11
It is descending at a slow speed that slide block is realized in hydraulic fluid port outflow；YA1, YA6 open, and hydraulic oil enters from the A2 hydraulic fluid port of master cylinder 11 through inserted valve 5d
Go out from A1 hydraulic fluid port, YA16 opens control replenishing valve, other electromagnetic valve switch are turned off, realize slide block backhaul；YA1 opens, and passes through
Control opening alone of O-shaped three-position four-way valve bYA10 and YA11 respectively, realize taking blame for others 12 ejection with return；Feeding cylinder 28
Advance to realize with returning back through to open YA2 and open alone YA14 and YA15 respectively；The ejection of lower central cylinder 27 is led to rollback
Cross and open YA1 and open alone YA12 and YA13 respectively to realize；Lower auxiliary cylinders 34a stretch out with rollback by open YA17 and
Open alone YA19 and YA18 respectively to realize；The stretching out with rollback by opening YA17 and beating alone respectively of lower auxiliary cylinders 34b
Open YA21 and YA20 to realize；Other manner of execution all carry out control realization with reference to magnetic valve sequence of movement table.
It is below electromagnetism action sequence list：
Sequence of movement table
Sequence of movement table
It should be understood by those skilled in the art that, the present invention is not restricted to the described embodiments, in above-described embodiment and specification
Describe merely illustrates the principles of the invention, and without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements both fall within scope of the claimed invention.Claimed scope is by institute
Attached claims and its equivalent thereof.
Claims (5)
1. a kind of tear bombnoun powder hydraulic press hydraulic system it is characterised in that：This tear bombnoun powder hydraulic press hydraulic system includes：
Control system, plug-in mounting valve system, accessory system and execution system；Control system is connected with plug-in mounting valve system and accessory system, holds
Row system is connected with plug-in mounting valve system；
Described control system include motor, axial plunger pump, vane pump, oil filter, cooler, stop valve, electromagnetic relief valve and
Fuel tank；Described motor is connected with axial plunger pump and vane pump respectively, drives axial plunger pump and vane pump to draw from fuel tank
Hydraulic oil, axial plunger pump and vane pump are connected with fuel tank respectively, and are respectively arranged with stop valve between fuel tank and two pumps, axially
Plunger displacement pump is mounted on oil filter with the delivery outlet of vane pump, and the delivery outlet of vane pump is parallel with an electromagnetic relief valve, and electromagnetism overflows
Stream valve is connected with fuel tank, and cooler is arranged in the loop of control system；
Described execution system includes：Master cylinder, feeding cylinder, take blame for others, lower center oil cylinder, O-shaped three-position four-way valve, p-type 3-position 4-way
Valve, stacked unidirectional throttle valve, Superimposed relief valve and stacking type hydraulic control check valve；Described master cylinder upper end is provided with topping up
Valve, master cylinder is provided with hydraulic fluid port Aa and hydraulic fluid port Ab；Described feeding cylinder is provided with hydraulic fluid port Ba with hydraulic fluid port Bb, hydraulic fluid port Ba and hydraulic fluid port Bb respectively
Connect with two stacked unidirectional throttle valves, reconnect after series connection on the hydraulic fluid port Oca and hydraulic fluid port Ocb of O-shaped three-position four-way valve c, O
The hydraulic fluid port Oct and hydraulic fluid port Ocp of type three-position four-way valve c passes through hydraulic fluid port Paa and Pab phase respectively with p-type three-position four-way valve a for the pipeline
Even；On described lower center oil cylinder is arranged on and takes blame for others, lower center oil cylinder is provided with hydraulic fluid port Ca and hydraulic fluid port Cb, the hydraulic fluid port of lower center oil cylinder
Ca is connected with the hydraulic fluid port Pap of p-type three-position four-way valve a, after the hydraulic fluid port Cb of lower center oil cylinder is connected with stacking type hydraulic control check valve
The hydraulic fluid port Pat being connected to p-type three-position four-way valve a is connected, and is parallel with one and is superimposed between stacking type hydraulic control check valve and hydraulic fluid port Cb
Formula overflow valve；Described take blame for others on lower center oil cylinder is installed, take blame for others and be provided with two hydraulic fluid port Da and Db；
Described plug-in mounting valve system includes inserted valve, H type three-position four-way valve, O-shaped three-position four-way valve, two position two-way valve, overflow valve, list
To ball valve, working connection pipeline and auxiliary oil circuit pipeline；Inserted valve a is connected with H type three-position four-way valve, and H type three-position four-way valve controls
Inserted valve a, inserted valve a are arranged on auxiliary oil circuit pipeline, and the hydraulic fluid port ax and hydraulic fluid port ay of inserted valve a are connected on auxiliary oil circuit pipeline,
The hydraulic fluid port az of inserted valve a and being connected of working connection pipeline；Inserted valve b is connected with O-shaped three-position four-way valve a, O-shaped three-position four-way valve a
Inserted valve b, inserted valve b is controlled to connect with inserted valve a, the hydraulic fluid port bx and hydraulic fluid port by of inserted valve b are connected on auxiliary oil circuit pipeline,
The hydraulic fluid port bz of inserted valve b is connected with inserted valve e；
Take blame for others oil circuit control and master cylinder oil circuit control be parallel with successively on described working connection pipeline, described take blame for others on oil circuit control
O-shaped three-position four-way valve b is installed, the hydraulic fluid port Obt of O-shaped three-position four-way valve b is connected with working connection pipeline, O-shaped three-position four-way valve b's
Hydraulic fluid port Oba is connected with the hydraulic fluid port Da taking blame for others, and is connected with a pipeline, the oil of O-shaped three-position four-way valve b between hydraulic fluid port Da and hydraulic fluid port Oba
Mouth Obp is connected with this pipeline, this pipeline is provided with non-return valve, its other end is connected on auxiliary oil circuit pipeline, connecting portion
On the pipeline that inserted valve a is connected with inserted valve b；The hydraulic fluid port Obb of O-shaped three-position four-way valve b is connected with the hydraulic fluid port Db taking blame for others,
Centre is parallel with the floating compacting oil circuit that two position two-way valve a controls overflow valve a to be formed；Also it is parallel with one on working connection pipeline to send
Material earthen pipe road, one end of this pipeline is connected with working connection pipeline, and the other end is connected to O-shaped three-position four-way valve c hydraulic fluid port Ocp and p-type
On the pipeline that three-position four-way valve a hydraulic fluid port Pa is in series；
On described master cylinder oil circuit control, a pipeline is connected with the replenishing valve on master cylinder, and this pipeline is provided with two position two-way valve
b；On auxiliary oil circuit pipeline, inserted valve b hydraulic fluid port bz is connected on master cylinder hydraulic fluid port Ab by another pipeline, this pipeline is provided with by
The inserted valve e that Solenoid ball valve controls, is also parallel with an inserted valve d being controlled by two position two-way valve d, the hydraulic fluid port dx of this inserted valve d
It is connected with this pipeline, hydraulic fluid port dz is in parallel with working connection pipeline, this pipeline is also parallel with two position two-way valve e, this two position two-way valve e
Hydraulic fluid port eb be connected with this pipeline, hydraulic fluid port et be connected to hydraulic fluid port Oba and hydraulic fluid port Da series connection pipeline on；On working connection pipeline also simultaneously
It is associated with a pipeline, one end of this pipeline is connected on the Aa hydraulic fluid port of master cylinder, and the other end is connected on working connection pipeline, this pipeline
On the inserted valve c being controlled by two position two-way valve c is installed；The output of axial plunger pump in described working connection pipeline and control system
End is connected, and auxiliary oil circuit pipeline is connected with the cooler in control system；
Described accessory system includes：P-type three-position four-way valve, superposing type one way sequence valve and lower auxiliary cylinders；Described superposing type is unidirectional
Sequence valve a is connected with lower auxiliary cylinders a, and after series connection, two ends are connected on the hydraulic fluid port of p-type three-position four-way valve c, forms auxiliary oil way a；
Superposing type one way sequence valve b is connected with lower auxiliary cylinders b, and after series connection, two ends are connected on the hydraulic fluid port of p-type three-position four-way valve b, is formed
Auxiliary oil way b；It is connected to the output end of vane pump after auxiliary oil way a is in parallel with auxiliary oil way b.
2. tear bombnoun powder hydraulic press hydraulic system according to claim 1 it is characterised in that：If being provided with this system
The dry shock-proof pressure gauge being controlled by pressure meter switch series connection.
3. tear bombnoun powder hydraulic press hydraulic system according to claim 1 it is characterised in that：In H type three-position four-way valve
A hydraulic fluid port on be in series with remote valve.
4. tear bombnoun powder hydraulic press hydraulic system according to claim 1 it is characterised in that：In working connection pipeline and master
It is parallel with a pressure switch a, in the O-shaped three-position four-way valve b hydraulic fluid port Obb and hydraulic fluid port Da that takes blame for others on the pipeline that oil cylinder port Aa is connected
One pressure switch b is parallel with connected pipeline.
5. tear bombnoun powder hydraulic press hydraulic system according to claim 1 it is characterised in that：Due to tear-gas ammunition powder pressure
The particularity of moulding process processed, motor adopts fire-proof motor, and the type of cooling of fluid uses water-cooled cooler.
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| CN201610295464.9A CN106402064B (en) | 2016-05-06 | 2016-05-06 | A kind of tear bombnoun powder hydraulic press hydraulic system |
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| CN201610295464.9A CN106402064B (en) | 2016-05-06 | 2016-05-06 | A kind of tear bombnoun powder hydraulic press hydraulic system |
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| CN106402064B CN106402064B (en) | 2018-07-10 |
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| CN110185663A (en) * | 2019-05-30 | 2019-08-30 | 西安交通大学 | The adding of a kind of local loading carries the hydraulic closed-loop control system of step formula press machine |
| CN108150468B (en) * | 2017-12-05 | 2019-12-20 | 西安交通大学 | Hydraulic press hydraulic system capable of quickly and stably realizing local loading |
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| CN110185663B (en) * | 2019-05-30 | 2020-06-16 | 西安交通大学 | Local-loading multi-loading step type press hydraulic closed-loop control system |
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| CN106402064B (en) | 2018-07-10 |
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Address after: 226600 Jiangsu city of Nantong province Haian Economic Development Zone Lifa Road No. 8 Patentee after: Jiangsu Jinze Heavy Machinery Group Co., Ltd. Address before: 226600 Jiangsu city of Nantong province Haian Economic Development Zone Lifa Road No. 8 Patentee before: Jiangsu Kanazawa Heavy Machinery Co., Ltd. |
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Effective date of registration: 20211217 Address after: 226600 No. 8, Lifa Avenue, Hai'an Economic Development Zone, Nantong City, Jiangsu Province Patentee after: JIANGSU KANAZAWA HEAVY MACHINERY Co.,Ltd. Patentee after: Beijing State Grid Xintong Accenture Information Technology Co., Ltd Address before: 226600 No. 8, Lifa Avenue, Hai'an Economic Development Zone, Nantong City, Jiangsu Province Patentee before: JIANGSU KANAZAWA HEAVY MACHINERY Co.,Ltd. |