CN110500332A - Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve - Google Patents
Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve Download PDFInfo
- Publication number
- CN110500332A CN110500332A CN201910787779.9A CN201910787779A CN110500332A CN 110500332 A CN110500332 A CN 110500332A CN 201910787779 A CN201910787779 A CN 201910787779A CN 110500332 A CN110500332 A CN 110500332A
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- Prior art keywords
- stomata
- valve
- cylinder
- valve body
- pneumohydraulic pressure
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- 230000001050 lubricating effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0426—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with fluid-operated pilot valves, i.e. multiple stage valves
-
- 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
- F15B13/16—Special measures for feedback, e.g. by a follow-up device
-
- 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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
Abstract
The invention discloses the prepressing type pneumohydraulic pressure-cylinders based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and reversing valve body, the pneumohydraulic pressure-cylinder ontology includes cylinder and hydraulic cylinder, the hydraulic cylinder is communicated with lubricating cup, the first stomata is equipped at the top of the lubricating cup, the hydraulic cylinder bottom is equipped with the second stomata and auxiliary air vent, and the top of the cylinder is equipped with third stomata, and the bottom of the cylinder is equipped with the 4th stomata；The reversing valve body includes valve body, valve rod, guide's valve deck, first piston and spring, and the valve body is equipped with the 5th stomata, the 6th stomata and the 7th stomata.The present invention to form gas passage by the way that hydraulic cylinder to be connected to guide's valve deck of valve body to realize signal feedback function, and gas circuit commutation further is carried out by the feedback signal, the structure of reversing valve greatly simplified reduces the manufacturing cost and maintenance cost of pneumohydraulic pressure-cylinder；The fluency and stability that pre-pressing stage changes to pressurization stages are improved simultaneously.
Description
Technical field
The invention belongs to pressurized cylinder technical fields, in particular to the prepressing type gas-liquid based on intelligent booster structure of reversing valve increases
Cylinder pressure.
Background technique
Pneumohydraulic pressure-cylinder is widely used in stamping equipment etc. and needs to be combined compared in the occasion of high thrust by cylinder and hydraulic cylinder
It forms, achievees the purpose that reinforcement punching press frequently with prepressing type control plus pressurization control, and the control of prepressing type pneumohydraulic pressure-cylinder needs
Reversal valve and reversal valve delay is used to be controlled, the commutation valve group of existing prepressing type pneumohydraulic pressure-cylinder needs Design assistant
Control detection circuit helps to judge the performance of pre-pressing stage, and then issues the reversal valve enabling signal of pressurization stages, in this way
Changing-over control structure complexity manufacturing cost it is high, boost section control delay is obvious, once and auxiliary control unit damage, maintenance fiber crops
It is tired and at high cost.
Summary of the invention
The present invention the above-mentioned prior art there are aiming at the problem that, the prepressing type based on intelligent booster structure of reversing valve is provided
Pneumohydraulic pressure-cylinder.
The present invention is realized by following technological means solves above-mentioned technical problem:
Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and control gas-liquid
The reversing valve body of pressurized cylinder ontology gas path on-off, the pneumohydraulic pressure-cylinder ontology include cylinder and hydraulic cylinder, the hydraulic cylinder
It is communicated with lubricating cup, the first stomata is equipped at the top of the lubricating cup, the hydraulic cylinder bottom is equipped with the second stomata and auxiliary air vent, described
The top of cylinder is equipped with third stomata, and the bottom of the cylinder is equipped with the 4th stomata；The reversing valve body includes valve body, valve
Bar, guide's valve deck, first piston and spring, the valve body is interior along gas chamber open at one end is axially arranged with, and the valve body is equipped with
The 5th stomata, the 6th stomata and the 7th stomata being connected to valve body gas chamber, and the 5th stomata and the 7th stomata are located at the 6th
The two sides of stomata, the valve stem slides are arranged in the gas chamber of valve body and by the company of sliding the 5th stomata and the 6th stomata of control
Logical to realize gas circuit control, guide's valve deck is sealingly mounted at the side of valve body openings, the cooperation of guide's valve deck and valve body
Face is equipped with sliding groove, and the spring is mounted on the slot bottom of sliding groove, and the first piston is mounted on the other end and cunning of spring
In sliding groove, the side of guide's valve deck principle sliding groove is equipped with the 8th stomata, the 8th stomata and sliding for dynamic cooperation
Slot connection；8th stomata is connected to auxiliary air vent, and the 6th stomata is connected to third stomata, the 5th stomata and
The connection of one stomata, the 7th stomata are gas vent and close guide's valve deck.
Further, the section of the sliding groove is greater than the section of valve body gas chamber.
Further, the first sealing ring is embedded on the side wall of the first piston.
Further, the valve body is equipped with far from one end of guide's valve deck resets valve deck, the valve body and reset valve deck
Connecting end surface is equipped with the mounting groove being connected to valve body gas chamber, and the reset valve deck is fixedly connected with mounting groove.
Further, the valve rod is equipped with the second sealing ring, and the second sealing ring close to the head side wall for resetting valve deck
Between reset valve deck and the 5th stomata.
Further, the centre of the valve rod is equipped with second piston, and the second piston slides into valve deck direction is resetted
Between the 5th stomata and the 6th stomata, the second piston slides into most to guide's valve deck direction for the left side of range
The right side of big stroke is between the 5th stomata and the 7th stomata.
Further, the side wall of the second piston is equipped with third sealing ring.
The invention has the benefit that the present invention is by the way that hydraulic cylinder to be connected to form gas passage with guide's valve deck of valve body
To realize signal feedback function, and gas circuit commutation further is carried out by the feedback signal, the entire commutation control that is pressurized does not relate to
And external auxiliary control circuit or gas circuit, the structure of reversing valve greatly simplified, reduce the manufacturing cost and dimension of pneumohydraulic pressure-cylinder
Accomplish this；The adjusting of feedback control gas circuit, which is carried out, using pressure itself condition simultaneously improves what pre-pressing stage changed to pressurization stages
Fluency and stability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pneumohydraulic pressure-cylinder ontology of the present invention；
Fig. 2 is the connection schematic diagram of pneumohydraulic pressure-cylinder ontology of the present invention and pressurization reversing valve body；
Fig. 3 is the structural schematic diagram of reversing valve body pre-pressing stage of the present invention；
Fig. 4 is the structural schematic diagram of reversing valve body pressurization stages of the present invention；
Fig. 5 is that the connection structure that pneumohydraulic pressure-cylinder ontology, pressurization reversing valve body and precompressed of the present invention control solenoid valve is shown
It is intended to.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment
As shown in Figures 1 to 3, based on the prepressing type pneumohydraulic pressure-cylinder of intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder
The reversing valve body 40 of ontology and control pneumohydraulic pressure-cylinder ontology gas path on-off, the pneumohydraulic pressure-cylinder ontology includes 10 He of cylinder
Hydraulic cylinder 11, the hydraulic cylinder 11 are communicated with lubricating cup 12, are equipped with the first stomata 21,11 bottom of hydraulic cylinder at the top of the lubricating cup 12
Portion is equipped with the second stomata (not shown) and auxiliary air vent 23, and the top of the cylinder 10 is equipped with third stomata 31, the gas
The bottom of cylinder 10 is equipped with the 4th stomata 32；The reversing valve body 40 is living including valve body 41, valve rod 42, guide's valve deck 43, first
Plug 44 and spring 45, the interior edge of the valve body 41 are axially arranged with gas chamber open at one end, the i.e. reseting cavity of valve body 41, the valve body 41
It is equipped with the 5th stomata 411, the 6th stomata 412 and the 7th stomata 413 that are connected to gas chamber, and the 5th stomata 411 and the
Seven stomatas 413 are located at the two sides of the 6th stomata 412, and the valve rod 42 is slidably arranged in the gas chamber of valve body 41 and by sliding control
Gas circuit control is realized in the connection for making the 5th stomata 411 and the 6th stomata 412, and guide's valve deck 43 is sealingly mounted at valve body 41 and opens
The mating surface of the side of mouth, guide's valve deck 43 and valve body 41 is equipped with sliding groove 431, and the spring 45 is mounted on sliding groove
431 slot bottom, the first piston 44 are mounted on the other end of spring 45 and are slidably fitted in sliding groove 431, the guide
The side of 43 principle sliding groove 431 of valve deck is equipped with the 8th stomata 432, and the 8th stomata 432 is connected to sliding groove 431；It is described
8th stomata 432 is connected to auxiliary air vent 23, and the 6th stomata 412 is connected to third stomata 31, the 5th stomata 411 with
The connection of first stomata 21, the 7th stomata 413 are gas vent and close guide's valve deck 43.
Pneumohydraulic pressure-cylinder needs first to pass through the first stomata 21 to 12 conveying high-pressure gas of lubricating cup from air compressor machine when pressurization
Body, the hydraulic oil compressed in lubricating cup 12 enters in hydraulic cylinder 11, so that the piston motion in hydraulic cylinder 11 is pushed to touch workpiece,
This stage is pre-pressing stage, as shown in Figure 3；As shown in figure 5, in pre-pressing stage, the second stomata of 11 bottom of hydraulic cylinder and pre-
Voltage-controlled solenoid valve processed 50 is connected to, and precompressed controls solenoid valve 50 usually two position-5 way valves or two position and four-way reversing valves, hydraulic
Air below 11 piston of cylinder controls solenoid valve 50 by precompressed and is discharged, and pressure reduces always, and its air pressure directly passes through pipeline
It is transmitted in guide's valve deck 43 by auxiliary air vent 23 through the 8th stomata 432, sliding groove 431 is inscribed to be added spring 45 by pressure feedback
Active force valve rod 42 is resisted, separate the 5th stomata 411 with the 6th stomata 412；After pre-pressing stage, hydraulic cylinder
Compressed air pressure below 11 pistons is minimum, and pressure support ventilation is lost in guide's valve deck 43, and 11 inner piston of hydraulic cylinder moves at this time
To precompressed stroke maximum, hydraulic piston bar contact workpiece, not big force-stroke.Air compressor machine continues to supply into lubricating cup 12,
Since the 5th stomata 411 on valve body 41 is concatenated with the first stomata 21, the high pressure gas in lubricating cup 12 is transferred to the 5th stomata 411
In, due to supporting to generate powerful pressure difference without air pressure in the high pressure gas and guide's valve deck 43 in the 5th stomata 411, make valve rod 42
Under the effect of the pressure to 43 1 Slideslip of guide's valve deck, and then the 5th stomata 411 is connected with the 6th stomata 412, this process
Middle spring 45 is compressed under stress, and the high pressure gas that air compressor machine generates enters third by the 5th stomata 411, the 6th stomata 412
Piston shaft in cylinder 10 is pressed in hydraulic cylinder 11 by high pressure gas, directly drives oil cylinder piston stroke to most by stomata 31
General goal, this stage are pressurization stages, as shown in Figure 4；After pressurization, reset cylinder from 32 air inlet of the 4th stomata, from
Two stomata air inlets reset hydraulic cylinder 11.
To sum up, the present invention to form gas passage by the way that hydraulic cylinder 11 to be connected to guide's valve deck 43 of valve body 41 to realize
Signal feedback function, and gas circuit commutation further is carried out by the feedback signal, entire commutation control is not related to external auxiliary control
Circuit processed or gas circuit, the structure of reversing valve greatly simplified reduce the manufacturing cost and maintenance cost of pneumohydraulic pressure-cylinder；Benefit simultaneously
The adjusting of feedback control gas circuit, which is carried out, with pressure itself condition improves the fluency and stabilization that pre-pressing stage changes to pressurization stages
Property.
As shown in figure 3, the section of the sliding groove 431 is greater than the section of 41 gas chamber of valve body.The sliding setting of first piston 44
In sliding groove 431, abutted with valve rod 42, in pre-pressing stage, since the section of sliding groove 431 is big, in first piston 44
Section is also greater than valve rod 42, then the forced area of first piston 44 is bigger, is conducive to the list for increasing pre-pressing stage first piston 44
Side stress further increases the stability of valve rod 42, prevents 42 play of valve rod；In addition, small 41 gas chamber of valve body in section is to first
Piston 44 can generate position-limiting action, prevent its transient motion.
As shown in figure 3, being embedded with the first sealing ring 441 on the side wall of the first piston 44.It is living to further increase first
The leakproofness of plug 44 and sliding groove 431, prevents gas and the indoor gases did escape of 41 gas of valve body in sliding groove 431 from altering
It is dynamic, to influence the commutation control of reversal valve.
As shown in figure 3, the valve body 41 is equipped with far from one end of guide's valve deck 43 resets valve deck 46, the valve body 41 with it is multiple
The connecting end surface of position valve deck 46 is equipped with the mounting groove being connected to 41 gas chamber of valve body, the reset valve deck 46 and the fixed company of mounting groove
It connects, generallys use threaded connection.Reset valve deck 46 is Demountable, another the purpose is to the reset of auxiliary stopper valve rod 42
Aspect, it is easy to disassemble to repair maintenance operation.
As shown in figure 3, the valve rod 42 is equipped with the second sealing ring 421 close to the head side wall for resetting valve deck 46, and the
Two sealing rings 421, which are located at, to be resetted between valve deck 46 and the 5th stomata 411.Second sealing ring 421 resets valve deck 46 for sealing, and prevents
Only gas pressure size out of reset 46 effect of flood valve body 41 of valve deck.
As shown in Figures 3 and 4, the centre of the valve rod 42 be equipped with second piston 422, the second piston 422 to reset valve
46 direction of lid slides into the left side of range between the 5th stomata 411 and the 6th stomata 412, thus by the 5th stomata
411 and the 6th stomata 412 separate and will be connected between the 5th stomata 411 and the 7th stomata 413, the second piston 422 is to elder generation
43 direction of pilot valve lid slides into the right side of range between the 5th stomata 411 and the 7th stomata 413, thus by the 5th
Stomata 411 is connected with the 6th stomata 412 and completely cuts off the 5th stomata 411 with the 7th stomata 413.Design benefit in this way is can to lead to
The sliding for crossing valve rod 42 drives second piston 422 to carry out gas circuit commutation.
As shown in figure 3, the side wall of the second piston 422 is equipped with third sealing ring 423.Prevent the 5th stomata 411,
Gas circuit play occurs between six stomatas 412 and the 7th stomata 413, improves leakproofness, guarantees the stabilization of reversal valve work of the present invention
Property.Based on Fig. 3, it will be appreciated by those skilled in the art that, it is set in total on the valve rod 42 there are four sealing ring, intermediate two
A is third sealing ring 423, is the second sealing ring 421 close to valve deck 46 is resetted, and when valve resets, it is living that valve rod 42 presses to first
Plug 44, spring 45 is compressed, and for second piston 422 close to the 8th stomata 432, the 7th stomata 413 and the is isolated in third sealing ring 423
Six stomatas 412, the 6th stomata 412 are connected to the 5th stomata 411；When first piston 44 presses to valve rod 42, first piston 44 is pressed onto
When 40 end face of reversing valve body, third sealing ring 423 is isolated the 6th stomata 412 and the 5th stomata 411, the 7th stomata 413 and the
The connection of six stomatas 412.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. the prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and control gas-liquid increase
The reversing valve body (40) of cylinder pressure ontology gas path on-off, the pneumohydraulic pressure-cylinder ontology include cylinder (10) and hydraulic cylinder (11),
The hydraulic cylinder (11) is communicated with lubricating cup (12), which is characterized in that the first stomata (21) are equipped at the top of the lubricating cup (12), it is described
Hydraulic cylinder (11) bottom is equipped with the second stomata and auxiliary air vent (23), and the top of the cylinder (10) is equipped with third stomata (31),
The bottom of the cylinder (10) is equipped with the 4th stomata (32)；The reversing valve body (40) includes valve body (41), valve rod (42), elder generation
Pilot valve lid (43), first piston (44) and spring (45), the interior edge of the valve body (41) is axially arranged with gas chamber open at one end, described
Valve body (41) is equipped with the 5th stomata (411), the 6th stomata (412) and the 7th stomata (413) being connected to valve body (41) gas chamber,
And the 5th stomata (411) and the 7th stomata (413) are located at the two sides of the 6th stomata (412), valve rod (42) sliding is set
It sets in the gas chamber of valve body (41) and gas circuit is realized by the connection of sliding the 5th stomata (411) of control and the 6th stomata (412)
Control, guide's valve deck (43) are sealingly mounted at the side of valve body (41) opening, guide's valve deck (43) and valve body (41)
Mating surface be equipped with sliding groove (431), the spring (45) is mounted on the slot bottom of sliding groove (431), the first piston
(44) it is mounted on the other end of spring (45) and is slidably fitted in sliding groove (431), guide's valve deck (43) principle sliding
The side of slot (431) is equipped with the 8th stomata (432), and the 8th stomata (432) is connected to sliding groove (431)；8th gas
Hole (432) is connected to auxiliary air vent (23), and the 6th stomata (412) is connected to third stomata (31), the 5th stomata
(411) it is connected to the first stomata (21), the 7th stomata (413) is for gas vent and close to guide's valve deck (43).
2. the prepressing type pneumohydraulic pressure-cylinder according to claim 1 based on intelligent booster structure of reversing valve, which is characterized in that
The section of the sliding groove (431) is greater than the section of valve body (41) gas chamber.
3. the prepressing type pneumohydraulic pressure-cylinder according to claim 2 based on intelligent booster structure of reversing valve, which is characterized in that
The first sealing ring (441) are embedded on the side wall of the first piston (44).
4. any prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve according to claim 1~3,
It is characterized in that, the valve body (41) is equipped with far from the one end of guide's valve deck (43) resets valve deck (46), the valve body (41) and multiple
The connecting end surface of position valve deck (46) is equipped with the mounting groove being connected to valve body (41) gas chamber, the reset valve deck (46) and mounting groove
It is fixedly connected.
5. the prepressing type pneumohydraulic pressure-cylinder according to claim 4 based on intelligent booster structure of reversing valve, which is characterized in that
The valve rod (42) is equipped with the second sealing ring (421) close to the head side wall for resetting valve deck (46), and the second sealing ring (421)
Between reset valve deck (46) and the 5th stomata (411).
6. the prepressing type pneumohydraulic pressure-cylinder according to claim 5 based on intelligent booster structure of reversing valve, which is characterized in that
The centre of the valve rod (42) is equipped with second piston (422), and second piston (422) Xiang Fuwei valve deck (46) direction slides into
The left side of range is between the 5th stomata (411) and the 6th stomata (412), and the second piston (422) is to guide
Valve deck (43) direction slides into the right side of range between the 5th stomata (411) and the 7th stomata (413).
7. the prepressing type pneumohydraulic pressure-cylinder according to claim 6 based on intelligent booster structure of reversing valve, which is characterized in that
The side wall of the second piston (422) is equipped with third sealing ring (423).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787779.9A CN110500332A (en) | 2019-08-23 | 2019-08-23 | Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787779.9A CN110500332A (en) | 2019-08-23 | 2019-08-23 | Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve |
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|---|---|
| CN110500332A true CN110500332A (en) | 2019-11-26 |
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| CN201910787779.9A Pending CN110500332A (en) | 2019-08-23 | 2019-08-23 | Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873912A (en) * | 1982-06-09 | 1989-10-17 | Hartmann & Lammle Gmbh & Co. Kg | Hydraulic driving arrangement |
| CN208651309U (en) * | 2018-08-16 | 2019-03-26 | 河北华春液压汽配有限公司 | Pneumatic control proportioning throttling hydraulicdirectional control valve |
| CN211059107U (en) * | 2019-08-23 | 2020-07-21 | 宣城铁凝机械有限公司 | Pre-pressing type gas-liquid pressure cylinder based on intelligent pressure-boosting reversing valve structure |
-
2019
- 2019-08-23 CN CN201910787779.9A patent/CN110500332A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873912A (en) * | 1982-06-09 | 1989-10-17 | Hartmann & Lammle Gmbh & Co. Kg | Hydraulic driving arrangement |
| CN208651309U (en) * | 2018-08-16 | 2019-03-26 | 河北华春液压汽配有限公司 | Pneumatic control proportioning throttling hydraulicdirectional control valve |
| CN211059107U (en) * | 2019-08-23 | 2020-07-21 | 宣城铁凝机械有限公司 | Pre-pressing type gas-liquid pressure cylinder based on intelligent pressure-boosting reversing valve structure |
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