CN108571478B - A kind of double plunger booster - Google Patents
A kind of double plunger booster Download PDFInfo
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- CN108571478B CN108571478B CN201810479790.4A CN201810479790A CN108571478B CN 108571478 B CN108571478 B CN 108571478B CN 201810479790 A CN201810479790 A CN 201810479790A CN 108571478 B CN108571478 B CN 108571478B
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- oil return
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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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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- Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The present invention proposes a kind of double plunger booster, the double plunger booster has main oil inlet, main oil return opening and high-pressure oil outlet, comprising: main valve, piston, right high-pressure plunger, left high-pressure plunger, the first check valve, second one-way valve, third check valve, the 4th check valve, the 5th check valve, the 6th check valve, the first overflow valve, the second overflow valve and pilot valve.A kind of double plunger booster according to an embodiment of the present invention, noise is lower, can reach high-frequency pressurization.
Description
Technical field
The present invention relates to a kind of booster, the double plunger booster that especially one kind reliably can be automatically continuously pressurized.
Background technique
Hydraulic intensifier is different using piston both ends active area and the identical principle of stress size, and hydraulic pressure is put
Low pressure can be increased to 200MPa or more by a kind of big ultrahigh-pressure hydraulic element, hydraulic intensifier.Hydraulic intensifier
Three kinds of single-acting one-stroke booster, single-action reciprocating booster and Double-action reciprocating formula booster can be divided into.Single-acting
For one-stroke booster due to that can only move to a direction, by travel limit, output flow is limited, can not reach continuous increasing
Pressure, the scope of application are narrow.Single-action reciprocating booster may be implemented continuously to be pressurized, but can only one way pressurization, oil sources utilize
Rate only has half, and output flow is also limited.Two-way continuous pressurization may be implemented, no in Double-effect reciprocating hydraulic pressure booster
By travel limit, output flow is big, is ideal pressurizing elements.But traditional Double-action reciprocating formula that the country uses at present
Hydraulic intensifier is the continuous commutation by solenoid directional control valve, and control pressurized cylinder moves back and forth continuous output high pressure, and structure is complicated,
Volume and weight is huge, it has not been convenient to carry, be difficult to use in terms of inflammable and explosive occasion and portable mechanism.
The Chinese invention patent of Publication No. CN101666339A proposes a kind of hydraulic intensifier, is changed using stroke control
The scheme continuously moved to valve and main reversing valve control pressurized cylinder, the program are controlled compared with domestic traditional using solenoid directional control valve
The double-acting supercharger of commutation has innovation, but there is also following disadvantages:
(1) since its return of stroke valve is maintained at two positions using steel ball positioning and chain, pressurized cylinder is controlled to difference
Direction movement, structure is complicated, difficulty of processing is big.And steel ball positioning is easy to fail, chain is pulled off, and stroke controls reversal valve will
In floating position, i.e. pressurized cylinder stop motion, therefore this control mode is unreliable；
(2) after its piston moves to the end in one direction, piston can generate shock with the end cap of respective direction, continue
The continuous noise for hitting generation of piston and end cap is very big in high frequency motion, and produces adverse effect to service life.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of low noise, can reach high-frequency pressurization double plunger increasing
Depressor.
A kind of double plunger booster according to an embodiment of the present invention, the double plunger booster have main oil inlet, lead back
Hydraulic fluid port and high-pressure oil outlet, comprising: main valve, piston, right high-pressure plunger, left high-pressure plunger, the first check valve, second one-way valve,
Third check valve, the 4th check valve, the 5th check valve, the 6th check valve, the first overflow valve, the second overflow valve and pilot valve,
In, the main valve is with left main valve chamber, right main valve chamber, the first oil inlet, the first actuator port, the second actuator port and first time
Hydraulic fluid port, first oil inlet are connected with the main oil inlet, and first actuator port passes through first check valve and a left side
Plunger shaft is connected and first actuator port is connected with the first through-flow slot on the left piston chamber, and left high pressure cylinder passes through described
Second one-way valve is connected with the main oil inlet and the left high pressure cylinder passes through the third check valve and the high-pressure oil outlet
Be connected, second actuator port be connected by the 4th check valve with right piston chamber and second actuator port with it is described
The second through-flow slot on right piston chamber is connected, and right high pressure cylinder is connected by the 5th check valve with the main oil inlet and described
Right high pressure cylinder is connected by the 6th check valve with the high-pressure oil outlet, first oil return opening and the main oil return opening phase
Even, the pilot valve has left first guide cavity, right first guide cavity, the second oil inlet, third actuator port, the 4th actuator port and second
Oil return opening, second oil inlet are connected with the main oil inlet, and the third actuator port is connected with the left main valve chamber, institute
It states the 4th actuator port to be connected with right main valve chamber, second oil return opening is connected with the main oil return opening, first overflow valve
First port be connected with first actuator port and the second port of first overflow valve is connected with the right first guide cavity,
The first port of second overflow valve is connected with the second actuator port and the second port of second overflow valve and the left side
First guide cavity is connected, and the right first guide cavity is equipped with the second damping hole being connected with the main oil return opening, the left first guide cavity equipped with
The first connected damping hole of the main oil return opening.
Advantageously, the pilot valve is connected in second oil inlet with the third actuator port and the described 4th works
The initial position and second oil inlet that hydraulic fluid port is connected with second oil return opening be connected with the 4th actuator port and
It can be switched between the transition status that the third actuator port is connected with second oil return opening.
Advantageously, the main valve is connected and second working oil in first oil inlet with first actuator port
The initial position and first oil inlet is connected with second actuator port and institute that mouth is connected with first oil return opening
Stating can be switched between the transition status that the first actuator port is connected with first oil return opening.
Advantageously, when the pilot valve is in initial position, the main valve is in initial position；At the pilot valve
When transition status, the main valve is in transition status.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of double plunger booster according to an embodiment of the invention, and piston is in initial at this time
Position；
Fig. 2 is a kind of schematic diagram of double plunger booster according to another embodiment of the present invention, and piston is in most right at this time
The position at end；
Fig. 3 is a kind of schematic diagram of double plunger booster of another embodiment according to the present invention, and piston is in most left at this time
The position at end.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail a kind of double plunger booster according to an embodiment of the present invention.
As shown in Figure 1 to Figure 3, a kind of double plunger booster according to an embodiment of the present invention, the double plunger are pressurized utensil
There are main oil inlet P, main oil return inlet T and high-pressure oil outlet H, comprising: main valve 8, piston 6, right high-pressure plunger 5a, left high-pressure plunger
5b, the first check valve 13b, second one-way valve 1b, third check valve 2b, the 4th check valve 13a, the 5th check valve 1a, the 6th list
To valve 2a, the first overflow valve 7a, the second overflow valve 7b and pilot valve 9.
Specifically, main valve 8 have left main valve chamber 8b, right main valve chamber 8a, the first oil inlet P 1, the first actuator port A1,
Second actuator port B1 and the first oil return inlet T 1.
First oil inlet P 1 is connected with main oil inlet P.
First actuator port A1 is connected by the first check valve 13b with left piston chamber 4b and the first actuator port A1 and left work
The the first through-flow slot 4d filled on chamber 4b is connected.
Left high pressure cylinder 3b is connected by second one-way valve 1b with main oil inlet P and left high pressure cylinder 3b passes through third check valve 2b
It is connected with high-pressure oil outlet H.
Second actuator port B1 is connected by the 4th check valve 13a with right piston chamber 4a and the second actuator port B1 and right work
The the second through-flow slot 4c filled on chamber 4a is connected.
Right high pressure cylinder 3a is connected by the 5th check valve 1a with main oil inlet P and right high pressure cylinder 3a passes through the 6th check valve 2a
It is connected with high-pressure oil outlet H.
First oil return inlet T 1 is connected with main oil return inlet T.
Pilot valve 9 has left first guide cavity 9b, right first guide cavity 9a, the second oil inlet P 2, third actuator port A2, the 4th work
Hydraulic fluid port B2 and the second oil return inlet T 2.
Second oil inlet P 2 is connected with main oil inlet P, and third actuator port A2 is connected with left main valve chamber 8b, the 4th working oil
Mouth B2 is connected with right main valve chamber 8a, and the second oil return inlet T 2 is connected with main oil return inlet T.
The first port of first overflow valve 7a be connected with the first actuator port A1 and the second port of the first overflow valve 7a with
Right elder generation guide cavity 9a is connected, and right elder generation guide cavity 9a is equipped with the second damping hole 12a being connected with main oil return inlet T.
The first port of second overflow valve 7b be connected with the second actuator port B1 and the second port of the second overflow valve 7b with
Left elder generation guide cavity 9b is connected, and left elder generation guide cavity 9b is equipped with the first damping hole 12b being connected with main oil return inlet T.
A specific example according to the present invention, pilot valve 9 be connected with third actuator port A2 in the second oil inlet P 2 and
The initial position and the second oil inlet P 2 and the 4th actuator port B2 phase that 4th actuator port B2 is connected with the second oil return inlet T 2
It can be switched between the transition status that company and third actuator port A2 are connected with the second oil return inlet T 2.
Advantageously, main valve 8 is connected and the second actuator port B1 and first in the first oil inlet P 1 with the first actuator port A1
The connected initial position of oil return inlet T 1 and the first oil inlet P 1 be connected with the second actuator port B1 and the first actuator port A1 and
It can be switched between the connected transition status of first oil return inlet T 1.
Further, when pilot valve 9 is in initial position, main valve 8 is in initial position；When pilot valve 9 is in conversion
When state, main valve 8 is in transition status.In other words, main valve 8 and pilot valve 9 are synchronously in initial position or transition status.
It following is a brief introduction of a kind of working principle of double plunger booster according to an embodiment of the present invention:
In application, main oil inlet P can be connected with hydraulic pump outlet, main oil return inlet T is connected with fuel tank, high-pressure oil outlet H
It is connected with operating cylinder or other executive components.
Assuming that main valve 8 is in the initial position of left end, (i.e. the first oil inlet P 1 is connected with the first actuator port A1, the second work
Make hydraulic fluid port B1 and the first oil return inlet T 1 be connected), oil liquid is on the one hand by main oil inlet P through the first oil inlet P 1, the first actuator port
Entering left piston chamber 4b by the first check valve 13b after A1 pushes piston 6 to move right, and oil liquid is on the other hand through second one-way valve
1b enters left high pressure cylinder 3b and is applied on left high-pressure plunger 5b, and the oil liquid of right piston chamber 4a is through the second through-flow slot 4c, the second work
Hydraulic fluid port B1, the first oil return inlet T 1, main oil return inlet T return to fuel tank, and the oil liquid in right pressurized cylinder 3a is after being pressurized by the 6th check valve
2a reaches high-pressure oil outlet H.
When piston 6, which moves right, is completely covered by the second through-flow slot 4c (as shown in Figure 2), the oil liquid of right piston chamber 4a
It cannot be discharged again by the second through-flow slot 4c, piston 6 can be braked under the action of closed right piston chamber 4a, and the first actuator port
Pressure at A1 can rapidly rise to the cracking pressure of the first overflow valve 7a, the first actuator port A1 after the first overflow valve 7a is opened
Oil liquid enter the right first guide cavity 9a of pilot valve 9, set up pressure in right elder generation guide cavity 9a and pilot valve 9 pushed to commutate, make pilot valve 9
In conversion position, (i.e. the second oil inlet P 2 is connected with the 4th actuator port B2 and third actuator port A2 and the second oil return inlet T 2
It is connected), the oil liquid of left elder generation guide cavity 9b reaches main oil return inlet T after the first damping hole 12b.9 control bound 8 of pilot valve replaces (i.e.
First oil inlet P 1 is connected with the second actuator port B1 and the first actuator port A1 is connected with the first oil return inlet T 1).Main valve 8 replaces
Afterwards, hydraulic pump outlet oil liquid enters the right side after oil inlet P, the first oil inlet P 1, the second actuator port B1, the 4th check valve 13a
Plunger shaft 4a, at the same time, the oil liquid of oil inlet P enter right pressurized cylinder 3a through the 5th check valve 1a and are applied to right high-pressure plunger 5a
On, push piston 6 to move downward, the oil liquid in left piston chamber 4b is through the first through-flow slot 4d, the first actuator port A1, the first oil return
Main oil return inlet T is reached after mouth T1, the oil liquid in left high pressure cylinder 3b is discharged to high-pressure oil outlet by third check valve 2b after being pressurized
H, when piston 6 moves downward, and the first through-flow slot 4d is completely covered by position, the oil liquid in left piston chamber 4b cannot be again by
One through-flow slot 4d discharge, piston 6 can be braked under the action of closed left piston chamber 4b, and the pressure at the second actuator port B1
The cracking pressure of the second overflow valve 7b can be rapidly risen to, the oil liquid of the second actuator port B1 enters after the second overflow valve 7b is opened
The left elder generation guide cavity 9b of pilot valve 9 pushes the transposition of pilot valve 9, and (i.e. the second oil inlet P 2 is connected with third actuator port A2 and the 4th work
Make hydraulic fluid port B2 to be connected with the second oil return inlet T 2), the oil liquid in right elder generation guide cavity 9a flows back into main oil return inlet T through the second damping hole 12a,
After pilot valve 9 replaces, main valve 8 is controlled by pilot valve 9 and is replaced, and the oil liquid of main oil inlet P works through the first oil inlet P 1, first
Hydraulic fluid port A1, the first check valve 13b enter left piston chamber 4b, and piston 6 is pushed to move right pressurization, so far complete circulation.
As long as main oil inlet P has oil liquid persistently to supply, a kind of double plunger booster according to an embodiment of the present invention will come
It returns to move back and forth and be pressurized.
A kind of double plunger booster according to an embodiment of the present invention has the following beneficial effects:
1, it automatic reciprocating can be pressurized, be not necessarily to automatically controlled control, high-frequency pressurization can be reached；
2, low noise: after the first through-flow slot and the second through-flow slot are covered by piston, oil return runner is closed, by piston system
It is dynamic, therefore piston will not be collided with left and right high pressure cylinder, therefore noise is lower.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
Connected or two elements the interaction relationship in portion.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example be changed, modify, replacement and variant, each fall within protection scope of the present invention.
Claims (4)
1. a kind of double plunger booster, the double plunger booster has main oil inlet, main oil return opening and high-pressure oil outlet, special
Sign is, comprising: main valve, piston, right high-pressure plunger, left high-pressure plunger, the first check valve, second one-way valve, third check valve,
4th check valve, the 5th check valve, the 6th check valve, the first overflow valve, the second overflow valve and pilot valve, wherein the main valve
With left main valve chamber, right main valve chamber, the first oil inlet, the first actuator port, the second actuator port and the first oil return opening, described
One oil inlet is connected with the main oil inlet, first actuator port be connected with left piston chamber by first check valve and
First actuator port is connected with the first through-flow slot on the left piston chamber, left high pressure cylinder by the second one-way valve with
The main oil inlet is connected and the left high pressure cylinder is connected by the third check valve with the high-pressure oil outlet, and described second
Actuator port is connected with right piston chamber by the 4th check valve and on second actuator port and the right piston chamber
Second through-flow slot is connected, and right high pressure cylinder is connected by the 5th check valve with the main oil inlet and the right high pressure cylinder passes through
6th check valve is connected with the high-pressure oil outlet, and first oil return opening is connected with the main oil return opening, the guide
Valve has left first guide cavity, right first guide cavity, the second oil inlet, third actuator port, the 4th actuator port and the second oil return opening, described
Second oil inlet is connected with the main oil inlet, and the third actuator port is connected with the left main valve chamber, the 4th work
Hydraulic fluid port is connected with right main valve chamber, and second oil return opening is connected with the main oil return opening, the first port of first overflow valve
It is connected with first actuator port and the second port of first overflow valve is connected with the right first guide cavity, described second overflows
The first port of stream valve is connected with the second actuator port and the second port of second overflow valve is connected with the left first guide cavity,
The right first guide cavity is equipped with the second damping hole being connected with the main oil return opening, and the left first guide cavity is equipped with and the main oil return opening
The first connected damping hole.
2. double plunger booster according to claim 1, which is characterized in that the pilot valve second oil inlet with
The third actuator port is connected and the 4th actuator port is connected with second oil return opening initial position and described
The conversion that second oil inlet is connected with the 4th actuator port and the third actuator port is connected with second oil return opening
It can be switched between state.
3. double plunger booster according to claim 2, which is characterized in that the main valve is in first oil inlet and institute
State the first actuator port is connected and second actuator port is connected with first oil return opening initial position and described the
The conversion shape that one oil inlet is connected with second actuator port and first actuator port is connected with first oil return opening
It can be switched between state.
4. double plunger booster according to claim 3, which is characterized in that when the pilot valve is in initial position,
The main valve is in initial position；When the pilot valve is in transition status, the main valve is in transition status.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479790.4A CN108571478B (en) | 2018-05-18 | 2018-05-18 | A kind of double plunger booster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479790.4A CN108571478B (en) | 2018-05-18 | 2018-05-18 | A kind of double plunger booster |
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| CN108571478A CN108571478A (en) | 2018-09-25 |
| CN108571478B true CN108571478B (en) | 2019-08-23 |
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| CN201810479790.4A Active CN108571478B (en) | 2018-05-18 | 2018-05-18 | A kind of double plunger booster |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114876758B (en) * | 2022-04-30 | 2024-02-13 | 青岛盘古智能制造股份有限公司 | Vacuum pump and application system and method thereof |
| CN115263828B (en) * | 2022-08-19 | 2024-05-28 | 江西德思宏液压有限公司 | Reciprocating supercharger applying small piston feedback scheme and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287407A (en) * | 2011-09-19 | 2011-12-21 | 宁波汉商液压有限公司 | Double-action reciprocating hydraulic booster |
| CN106989076A (en) * | 2017-05-24 | 2017-07-28 | 晋中浩普液压设备有限公司 | Reciprocating booster is freely changed in control more than a kind of list |
| CN107246422A (en) * | 2017-05-24 | 2017-10-13 | 晋中浩普液压设备有限公司 | A kind of reciprocating-type supercharger reversing arrangement and its application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10158182B4 (en) * | 2001-11-28 | 2005-06-02 | Minibooster Hydraulics A/S | Double-acting hydraulic pressure booster |
| DE10158178C1 (en) * | 2001-11-28 | 2003-07-17 | Minibooster Hydraulics As Soen | Hydraulic pressure booster |
-
2018
- 2018-05-18 CN CN201810479790.4A patent/CN108571478B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287407A (en) * | 2011-09-19 | 2011-12-21 | 宁波汉商液压有限公司 | Double-action reciprocating hydraulic booster |
| CN106989076A (en) * | 2017-05-24 | 2017-07-28 | 晋中浩普液压设备有限公司 | Reciprocating booster is freely changed in control more than a kind of list |
| CN107246422A (en) * | 2017-05-24 | 2017-10-13 | 晋中浩普液压设备有限公司 | A kind of reciprocating-type supercharger reversing arrangement and its application |
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Effective date of registration: 20190724 Address after: 072550 Hezhuang intersection of Xushui district, Baoding City, Hebei Province Applicant after: Baoding Lianyu Machinery Manufacturing Co., Ltd. Address before: 523000 Dongguan City, Guangdong Province, Songshan Lake High-tech Industrial Development Zone Headquarters, No. 2, No. 1 District, No. 2, No. 201 Applicant before: Dongguan hate Paavo Hydraulic Technology Co., Ltd. |
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