CN108679031A - A kind of hydraulic air compressor - Google Patents
A kind of hydraulic air compressor Download PDFInfo
- Publication number
- CN108679031A CN108679031A CN201810480363.8A CN201810480363A CN108679031A CN 108679031 A CN108679031 A CN 108679031A CN 201810480363 A CN201810480363 A CN 201810480363A CN 108679031 A CN108679031 A CN 108679031A
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- Prior art keywords
- valve
- control
- hydraulic fluid
- fluid ports
- cylinder body
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
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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
- F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic air compressor, including link block, the left and right ends of the link block are separately installed with the first cylinder body and the second cylinder body；It is slidably connected in the link block and piston rod, the left end of the piston rod is located in first cylinder body, right end is located in second cylinder body；The first piston being connected with the piston rod left end is slidably connected in first cylinder body, and the second piston being connected with the right end of the piston rod is slidably connected in second cylinder body；The link block is equipped with the reversal valve for controlling the piston rod bilateral reciprocation；The left end of first cylinder body is equipped with the first check valve for controlling air entrance and the second check valve for controlling air discharge, and the right end of second cylinder body is equipped with the third check valve for controlling air entrance and the 4th check valve for controlling air discharge；The air compressor machine is not only simple in structure, and is not necessarily to electric control.
Description
Technical field
The present invention relates to air compressor machine technical field, specially a kind of hydraulic air compressor.
Background technology
With the large-scale application of heavy mechanical equipment, hydraulic-driven obtains extensively as a kind of critically important type of drive
Using hydraulic system and its relevant technologies also reach its maturity.Especially in air compressor machine applied technical field, traditional air compressor machine is
It realizes that piston moves back and forth in cylinder body using toggle in turn to compress air, the air compressor machine of this mode exports arteries and veins
It rushes big, unstable, and is easy to block under bad working environments, in addition realizes reciprocating motion of the pistons in current hydraulic air compressor
Reversal valve, mostly use solenoid directional control valve greatly and displacement sensor match control commutation, all by controlling sensor close to switch,
It is unstable, unreliable to commutate, complicated, and it is inconvenient to replace；The control circuit part of reversing arrangement is using circuit board control
System, because wiring board is non-standard, and making processing is relatively difficult, and repair is just extremely difficult after damage, while if there is
Also be inconvenient to search reason after problem, greatly reduce production efficiency；Existing reversing arrangement, if long-term lasting energization, very
It is easily damaged gadget, the requirement being electrified for a long time can be met, also influenced production efficiency to a certain extent.And certain fields
There is extremely stringent requirement of explosion proof, it is desirable that simplification system as possible is intervened without extraneous, is such as applied in oil mine, coal filling
Air compressor machine (having requirement of explosion proof) in the fields such as note, natural gas compressing station, a kind of hydraulic air compressor of desirability are not necessarily to meet
The intervention of personnel's short distance can voluntarily commutate but also meet the needs of explosion-proof.
Invention content
(1) technical problems to be solved
It is an object of the invention to overcome the defect in the prior art, a kind of hydraulic pressure simple in structure, easy to process is provided
Air compressor machine.
(2) technical solution
To achieve the above object, the present invention provides a kind of hydraulic air compressor, including link block, the left and right of the link block
Both ends are separately installed with the first cylinder body and the second cylinder body；Piston rod, a left side for the piston rod are slidably connected in the link block
End is located in first cylinder body, and right end is located in second cylinder body；It is slidably connected in first cylinder body and the work
The connected first piston of stopper rod left end slidably connects the second work being connected with the right end of the piston rod in second cylinder body
Plug；The link block is equipped with the reversal valve for controlling the piston rod bilateral reciprocation；The left end of first cylinder body
The first check valve for controlling air entrance and the second check valve for controlling air discharge, second cylinder body are installed
Right end be equipped with for control air entrance third check valve and for control air discharge the 4th check valve；By upper
It states the first cylinder body that the hydraulic air compressor is set and the second cylinder body Integral connection structure is compacter, and first piston and second
The reciprocating motion of piston is without automatically controlled.
In further technical solution, the reversal valve includes the valve for being internally provided with P hydraulic fluid ports, A hydraulic fluid ports, B hydraulic fluid ports, T hydraulic fluid ports
The left and right ends of body, the valve body are separately installed with first end cover and second end cover, are slidably connected in the valve body and are useful for controlling
The main valve plug of liquefaction mouth break-make；The side upper edge of the main valve plug its it is axial be equipped with successively from left to right first shoulder, second
Shoulder, third shoulder and the 4th shoulder, form the first control chamber between the first shoulder and the first end cover, described 4th
The second control chamber is formed between shoulder and the second end cover；
The first spill valve and the second spill valve, the oil inlet of first spill valve are equipped in the valve body
Mouthful and A hydraulic fluid ports communicate, the oil outlet of first spill valve passes through the first flow that is located in the valve body and described the
One control chamber communicates, and the oil inlet and B hydraulic fluid ports of second spill valve communicate, the oil outlet of second spill valve
It is communicated with second control chamber by the second flow channel being located in the valve body；
The first fluid-control one-way valve module and the second fluid-control one-way valve module, first fluid-control one-way are equipped in the valve body
The oil inlet of valve module is communicated by the first flow with first control chamber, and the first fluid-control one-way valve module returns
Hydraulic fluid port is communicated by the third flow channel being located in the valve body with T hydraulic fluid ports, the control port of the first fluid-control one-way valve module
It is communicated with the oil outlet of second spill valve by the 4th runner being located in the valve body；Second fluid-control one-way
The oil inlet of valve module is communicated by the second flow channel with second control chamber, and the second fluid-control one-way valve module returns
Hydraulic fluid port is communicated by the 5th runner being located in the valve body with T hydraulic fluid ports, the control port of the second fluid-control one-way valve module
It is communicated with the oil outlet of first spill valve by the 6th runner being located in the valve body；
When the main valve plug is located at left position, the P hydraulic fluid ports are communicated with the B hydraulic fluid ports, the A hydraulic fluid ports and T oil
Mouth communicates；When the main valve plug is located at location right, the P hydraulic fluid ports are communicated with the A hydraulic fluid ports, the B hydraulic fluid ports and the T hydraulic fluid ports
It communicates.
In further technical solution, first spill valve and second spill valve are that same components are equal
It is threaded in including the first swivel nut, the first poppet valve core, the first spring, the first capping and the first adjusting rod, first swivel nut
In the valve body, the upper end of first poppet valve core is slidably connected at the first swivel nut endoporus, lower end and the first overflow valve port
It matches；First spring is arranged in first swivel nut for forcing first poppet valve core to first overflow valve
Mouth movement, first closure threads are connected to the upper end of first swivel nut inner cavity, and first adjusting rod is threaded in
Pretightning force in first capping for adjusting first spring.
In further technical solution, the first fluid-control one-way valve module and the second fluid-control one-way valve module are phase
Include the valve pocket being plugged into the valve body, and the gland for being pressed on the valve pocket in the valve body with component；
It is equipped with the first installation cavity and the second installation cavity in the valve pocket successively from the bottom to top along its length, and described for being connected to
The through flow hole of first installation cavity and second installation cavity；Be equipped at the through flow hole on the side of the valve pocket with it is described
The oil return hole of first installation cavity connection, and the fuel feed hole that is connected to second installation cavity, its axis of the lower end edge of the valve pocket
To equipped with the control oilhole being connected to first installation cavity；It is equipped in second installation cavity logical for controlling the through flow hole
Disconnected control spool, and the control spring for controlling spool and being moved to the through flow hole is forced, the one of the control spring
End contradicts on the control spool, and the other end contradicts on the gland；It is slidably connected in first installation cavity and institute
State control piston of the control spool cooperation for controlling the through flow hole break-make.
In further technical solution, the link block is equipped with for being connected to the A hydraulic fluid ports and first cylinder body
7th runner, and the 8th runner for being connected to the B hydraulic fluid ports and second cylinder body.
(3) advantageous effect
Compared with prior art, technical scheme of the present invention has the following advantages：
First cylinder body of the hydraulic air compressor and the second cylinder body Integral connection structure are compacter, and first piston and
The reciprocating motion of two pistons is without automatically controlled；Additionally by setting and relevant first spill valve of the first control chamber and the first liquid
Control check valve assembly, and relevant second spill valve of the second control chamber and the second fluid-control one-way valve module, and by A hydraulic fluid port pressures
Triggering pressure of the power as the first spill valve, using the pressure of B hydraulic fluid ports as the triggering pressure of the second spill valve, by
Control pressure of the one control cavity pressure as the second fluid-control one-way valve module, using the second control cavity pressure as the first fluid-control one-way
The control pressure of valve module, can make the external hydraulic cylinder travel controlled in place after, the first control chamber of automatic trigger and the second control
Cavity pressure processed variation (be specially the first control chamber is that then the second control chamber is low pressure to high pressure, the second control chamber is high pressure then first
Control chamber is low pressure), and then control bound core automatic reverse, it is not necessarily to automatically controlled control；The hydraulic air compressor is simple in structure, processing side
Just, it can be adapted for the operating mode for having requirement of explosion proof.
Description of the drawings
Fig. 1 is the structural schematic diagram of hydraulic air compressor in the present embodiment；
Fig. 2 is the structural schematic diagram of the reversal valve of hydraulic air compressor in the present embodiment；
Fig. 3 is A-A diagrammatic cross-sections in Fig. 2；
Fig. 4 is B-B diagrammatic cross-sections in Fig. 2；
Fig. 5 is C-C diagrammatic cross-sections in Fig. 2；
Fig. 6 is the structural schematic diagram of the first fluid-control one-way valve module；
Fig. 7 is the hydraulic schematic diagram of the reversal valve of the present embodiment.
Specific implementation mode
- 7 are please referred to Fig.1, the present invention provides a kind of hydraulic air compressor, including link block 19, the left and right of the link block 19
Both ends are separately installed with the first cylinder body 20 and the second cylinder body 21；Piston rod 22, the work are slidably connected in the link block 19
The left end of stopper rod 22 is located in first cylinder body 20, and right end is located in second cylinder body 21；It is sliding in first cylinder body 20
It is dynamic to be connected with the first piston 23 being connected with 22 left end of the piston rod, it is slidably connected in second cylinder body 21 and the work
The connected second piston 24 of the right end of stopper rod 22；The link block 19 is equipped with back and forth to be transported for controlling the piston rod 22 or so
Dynamic reversal valve 25；The left end of first cylinder body 20, which is equipped with, to be entered for controlling air in 20 rodless cavity of the first cylinder body
The first check valve 27 and the second check valve 26 of 20 rodless cavity of the first cylinder body is discharged for controlling air, second cylinder
The right end of body 21 be equipped with for control air into 21 rodless cavity of the second cylinder body third check valve 29 and for controlling
The 4th check valve 28 of 21 rodless cavity of the second cylinder body is discharged in air processed.
The reversal valve 25 includes the valve body 1 for being internally provided with P hydraulic fluid ports, A hydraulic fluid ports, B hydraulic fluid ports, T hydraulic fluid ports, a left side for the valve body 1
Right both ends are separately installed with first end cover 2 and second end cover 3, are slidably connected in the valve body 1 and are useful for control port break-make
Main valve plug 4；Its axial direction of the side upper edge of the main valve plug 4 is equipped with first shoulder 4a, the second shoulder 4b, third successively from left to right
Shoulder 4c and the 4th shoulder 4d, forms the first control chamber 101 between the first shoulder 4a and the first end cover 2, and described
The second control chamber 102 is formed between four shoulder 4d and the second end cover 3.
The first spill valve 5 and the second spill valve 6 are equipped in the valve body 1, first spill valve 5
Oil inlet and A hydraulic fluid ports communicate, and the oil outlet of first spill valve 5 passes through the first flow 1a that is located in the valve body 1
It is communicated with first control chamber 101, the oil inlet and B hydraulic fluid ports of second spill valve 6 communicate, second overflow valve
The oil outlet of component 6 is communicated by the second flow channel 1b being located in the valve body 1 with second control chamber 102.
The first fluid-control one-way valve module 7 and the second fluid-control one-way valve module 8, first hydraulic control are equipped in the valve body 1
The oil inlet of check valve assembly 7 is communicated by the first flow 1a with first control chamber 101, first fluid-control one-way
The oil return opening of valve module 7 is communicated by the third flow channel 1c being located in the valve body 1 with T hydraulic fluid ports, first hydraulic control one-way valve
The control port of component 7 is by being located at the oil outlet phase of the 4th runner 1d and second spill valve 6 in the valve body 1
It is logical；The oil inlet of the second fluid-control one-way valve module 8 is communicated by the second flow channel 1b with second control chamber 102,
The oil return opening of the second fluid-control one-way valve module 8 is communicated by the 5th runner 1e being located in the valve body 1 with T hydraulic fluid ports, institute
The control port for stating the second fluid-control one-way valve module 8 passes through the 6th runner 1f being located in the valve body 1 and first overflow
The oil outlet of valve module 5 communicates.
When the main valve plug 4 is located at left position, the P hydraulic fluid ports are communicated with the B hydraulic fluid ports, the A hydraulic fluid ports and T oil
Mouth communicates；When the main valve plug 4 is located at location right, the P hydraulic fluid ports are communicated with the A hydraulic fluid ports, the B hydraulic fluid ports and T oil
Mouth communicates.
First spill valve 5 and second spill valve 6 are that same components include the first swivel nut 9, the
One poppet valve core 10, the capping 12 of the first spring 11, first and the first adjusting rod 13, first swivel nut 9 are threaded in the valve
In body 1, the upper end of first poppet valve core 10 is slidably connected at 9 endoporus of the first swivel nut, lower end and the first overflow valve port phase
Cooperation；The setting of first spring 11 is in first swivel nut 9 for forcing first poppet valve core 10 to overflow to described first
Valve port movement is flowed, first capping 12 is threaded in the upper end of 9 inner cavity of the first swivel nut, 13 spiral shell of the first adjusting rod
Line is connected to the pretightning force for adjusting first spring 11 in first capping 12.
The first fluid-control one-way valve module 7 and the second fluid-control one-way valve module 8 are that same components include grafting
To the valve pocket 14 in the valve body 1, and the gland 15 for being pressed on the valve pocket 14 in the valve body 1；The valve pocket
It is equipped with the first installation cavity 1401 and the second installation cavity 1402 in 14 successively from the bottom to top along its length, and for being connected to
State the through flow hole 1403 of the first installation cavity 1401 and second installation cavity 1402；Close to described logical on the side of the valve pocket 14
It is equipped with the oil return hole 1404 being connected to first installation cavity 1401 at discharge orifice 1403, and connects with second installation cavity 1402
Logical fuel feed hole 1405, the lower end edge of the valve pocket 14 its be axially arranged with the control oilhole being connected to first installation cavity 1401
1406；It is equipped with the control spool 16 for controlling 1403 break-make of the through flow hole in second installation cavity 1402, and forces
One end of the control spring 17 that the control spool 16 is moved to the through flow hole 1403, the control spring 17 is contradicted described
It controls on spool 16, the other end contradicts on the gland 15；It is slidably connected in first installation cavity 1401 and the control
Spool 16 processed coordinates the control piston 18 for controlling 1403 break-make of the through flow hole.
The link block 19 is equipped with the 7th runner for being connected to the A hydraulic fluid ports and 20 rod chamber of the first cylinder body
1901, and the 8th runner 1902 for being connected to the B hydraulic fluid ports and the second cylinder body rod chamber.
Using when by the present invention P hydraulic fluid ports and T hydraulic fluid ports be connected with hydraulic oil source, A hydraulic fluid ports and B hydraulic fluid ports are separately connected first
The rod chamber of the rod chamber of cylinder body 20 and the second cylinder body 21.When P hydraulic fluid port oil inlets, it is assumed that main valve plug 4 is in as shown in Figure 2
Left position, then P hydraulic fluid ports and A hydraulic fluid ports communicate, B hydraulic fluid ports and T hydraulic fluid ports communicate, in the rod chamber of the first cylinder body 20 pressure rise in turn
Driving first piston 23, which is moved downward, to be compressed the air in the first cylinder body rodless cavity and is discharged, while passing through piston rod
22 drive the second piston 24 being located in second cylinder body 21 to move downward so that negative pressure is formed in 21 rodless cavity of the second cylinder body
And then it draws air into.After first piston 23 moves downward to the end, the pressure of A hydraulic fluid ports can rapidly rise to the first overflow valve group
The Opening pressure of part 5, the first spill valve 5 are opened, and fluid overflows through A hydraulic fluid ports, the oil inlet of the first spill valve 5, first
Flow oil outlet, first flow 1a the first control chambers 101 of arrival of valve module 5, while the oil outlet pressure of the first spill valve 5
Being applied on the control piston 18 of the second fluid-control one-way valve module 8 by the 6th runner 1f pushes control spool 16 to open so that
Fluid in second control chamber 102 passes through second flow channel 1b, the oil inlet of the second fluid-control one-way valve module 8, the second fluid-control one-way
The oil return opening of valve module 8, the 5th runner 1e flow to T hydraulic fluid ports and then rapid off-load, and main valve plug 4 is in the first control chamber 101 and second
It is moved right under the action of 102 pressure difference of control chamber, after main valve plug 4 moves to the right extreme position, P hydraulic fluid ports and B hydraulic fluid ports communicate,
A hydraulic fluid ports and T hydraulic fluid ports communicate, and the first spill valve 5 is closed, and the pressure of the first control chamber 101 is lockked by control spool 16 to be maintained
Main valve plug 4 is in location right, in the rod chamber of the second cylinder body 21 pressure rise so that drive second piston 24 move right by
Air in second cylinder body, 21 rodless cavity is compressed and is discharged, while being driven by piston rod 22 and being located at first cylinder body
First piston 23 in 20 moves right so that forms negative pressure in 20 rodless cavity of the first cylinder body and then draws air into.When second
After piston 24 moves right to the end, the pressure of B hydraulic fluid ports can rapidly rise to the Opening pressure of the second spill valve 6, and second overflows
It flows valve module 6 to open, fluid is through B hydraulic fluid ports, the oil inlet of the second spill valve 6, the oil outlet of the second spill valve 6, the
Two runner 1b reach the second control chamber 102, while the oil outlet pressure of the second spill valve 6 is applied to by the 4th runner 1d
Control spool 16 is pushed to open on the control piston 18 of first fluid-control one-way valve module 7 so that the fluid in the first control chamber 101
Pass through first flow 1a, the oil inlet of the first fluid-control one-way valve module 7, the oil return opening of the first fluid-control one-way valve module 7, third stream
Road 1c flows to T hydraulic fluid ports and then rapid off-load, main valve plug 4 under the action of the first control chamber 101 and the second 102 pressure difference of control chamber to
Left movement, after main valve plug 4 moves to left side extreme position, P hydraulic fluid ports and A hydraulic fluid ports communicate, B hydraulic fluid ports and T hydraulic fluid ports communicate, second overflows
Valve module 6 is flowed to close, the pressure of the second control chamber 102 is lockked by control spool 16 maintains main valve plug 4 to be in left position, and first
Pressure, which rises and then first piston 23 is driven to move downward, in the rod chamber of cylinder body 20 so far forms cycle, and piston rod 22 is in this hair
Automatic movement back and forth, is not necessarily to automatically controlled control under bright control.
Only it is the preferred embodiment of the present invention described in top, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of hydraulic air compressor, which is characterized in that including link block, the left and right ends of the link block are separately installed with first
Cylinder body and the second cylinder body；Piston rod is slidably connected in the link block, the left end of the piston rod is located at first cylinder body
Interior, right end is located in second cylinder body；First to be connected with the piston rod left end is slidably connected in first cylinder body
Piston slidably connects the second piston being connected with the right end of the piston rod in second cylinder body；It is set on the link block
It is useful for controlling the reversal valve of the piston rod bilateral reciprocation；The left end of first cylinder body is equipped with for controlling air
The first check valve entered and the second check valve for controlling air discharge, the right end of second cylinder body are equipped with for controlling
The third check valve that air processed enters and the 4th check valve for controlling air discharge.
2. hydraulic air compressor according to claim 1, which is characterized in that the reversal valve includes being internally provided with P hydraulic fluid ports, A
The left and right ends of the valve body of hydraulic fluid port, B hydraulic fluid ports, T hydraulic fluid ports, the valve body are separately installed with first end cover and second end cover, the valve
It is slidably connected in vivo and is useful for the main valve plug of control port break-make；It is axial from left to right successively for the side upper edge of the main valve plug
Equipped with first shoulder, the second shoulder, third shoulder and the 4th shoulder, is formed between the first shoulder and the first end cover
One control chamber forms the second control chamber between the 4th shoulder and the second end cover；
Be equipped with the first spill valve and the second spill valve in the valve body, the oil inlet of first spill valve and
A hydraulic fluid ports communicate, and the oil outlet of first spill valve is controlled by the first flow being located in the valve body with described first
Chamber processed communicates, and the oil inlet and B hydraulic fluid ports of second spill valve communicate, and the oil outlet of second spill valve passes through
The second flow channel being located in the valve body is communicated with second control chamber；
The first fluid-control one-way valve module and the second fluid-control one-way valve module, the first fluid-control one-way valve group are equipped in the valve body
The oil inlet of part is communicated by the first flow with first control chamber, the oil return opening of the first fluid-control one-way valve module
It is communicated with T hydraulic fluid ports by the third flow channel being located in the valve body, the control port of the first fluid-control one-way valve module passes through
The 4th runner being located in the valve body is communicated with the oil outlet of second spill valve；The second fluid-control one-way valve group
The oil inlet of part is communicated by the second flow channel with second control chamber, the oil return opening of the second fluid-control one-way valve module
It is communicated with T hydraulic fluid ports by the 5th runner being located in the valve body, the control port of the second fluid-control one-way valve module passes through
The 6th runner being located in the valve body is communicated with the oil outlet of first spill valve；
When the main valve plug is located at left position, the P hydraulic fluid ports are communicated with the B hydraulic fluid ports, the A hydraulic fluid ports and the T hydraulic fluid ports phase
It is logical；When the main valve plug is located at location right, the P hydraulic fluid ports are communicated with the A hydraulic fluid ports, the B hydraulic fluid ports and the T hydraulic fluid ports phase
It is logical.
3. hydraulic air compressor according to claim 2, which is characterized in that first spill valve and described second is overflow
It includes the first swivel nut, the first poppet valve core, the first spring, the first capping and the first adjusting rod, institute to flow valve module for same components
It states the first swivel nut to be threaded in the valve body, the upper end of first poppet valve core is slidably connected in first swivel nut
Hole, lower end are matched with the first overflow valve port；First spring is arranged in first swivel nut for forcing described first
Poppet valve core is moved to the first overflow valve port, and first closure threads are connected to the upper end of first swivel nut inner cavity, institute
It states the first adjusting rod and is threaded in the pretightning force for being used to adjust first spring in first capping.
4. hydraulic air compressor according to claim 2, which is characterized in that the first fluid-control one-way valve module and described
Two fluid-control one-way valve modules include the valve pocket being plugged into the valve body for same components, and for compressing the valve pocket
Gland in the valve body；It is equipped with the first installation cavity and the second installation in the valve pocket successively from the bottom to top along its length
Chamber, and the through flow hole for being connected to first installation cavity and second installation cavity；Close to institute on the side of the valve pocket
The oil return hole for being equipped at through flow hole and being connected to first installation cavity is stated, and the fuel feed hole being connected to second installation cavity,
The lower end edge of the valve pocket its be axially arranged with the control oilhole being connected to first installation cavity；It is equipped in second installation cavity
Control spool for controlling the through flow hole break-make, and force the control bullet for controlling spool and being moved to the through flow hole
One end of spring, the control spring contradicts on the control spool, and the other end contradicts on the gland；First installation
Intracavitary slidably connects the control piston coordinated with the control spool for controlling the through flow hole break-make.
5. hydraulic air compressor according to claim 2, which is characterized in that the link block is equipped with for being connected to the A
7th runner of hydraulic fluid port and first cylinder body, and the 8th runner for being connected to the B hydraulic fluid ports and second cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480363.8A CN108679031A (en) | 2018-05-18 | 2018-05-18 | A kind of hydraulic air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480363.8A CN108679031A (en) | 2018-05-18 | 2018-05-18 | A kind of hydraulic air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108679031A true CN108679031A (en) | 2018-10-19 |
Family
ID=63806722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810480363.8A Pending CN108679031A (en) | 2018-05-18 | 2018-05-18 | A kind of hydraulic air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679031A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714954A (en) * | 2019-10-25 | 2020-01-21 | 湖南中大创远数控装备有限公司 | Oil cylinder |
| CN112060670A (en) * | 2020-08-13 | 2020-12-11 | 邵玉刚 | Flow and pressure control device of hydraulic machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110714954A (en) * | 2019-10-25 | 2020-01-21 | 湖南中大创远数控装备有限公司 | Oil cylinder |
| CN112060670A (en) * | 2020-08-13 | 2020-12-11 | 邵玉刚 | Flow and pressure control device of hydraulic machine |
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