CN109185252A - Stepless air adjusting mechanism and piston compressor - Google Patents
Stepless air adjusting mechanism and piston compressor Download PDFInfo
- Publication number
- CN109185252A CN109185252A CN201811224009.5A CN201811224009A CN109185252A CN 109185252 A CN109185252 A CN 109185252A CN 201811224009 A CN201811224009 A CN 201811224009A CN 109185252 A CN109185252 A CN 109185252A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- spool
- adjusting mechanism
- cylinder body
- air adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
-
- 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
- F15B15/1423—Component parts; Constructional details
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of stepless air adjusting mechanisms, including electromagnetic component, hydraulic unit and air inlet component.Electromagnetic component includes a spool, and spool protrudes into the hydraulic unit.Hydraulic unit includes a piston rod, and piston rod drives the air inlet component.Hydraulic unit further included oiled-plate method, upper cylinder body and lower cylinder body.There are a guided rings, which forms diversion trench on the piston rod and with the piston rod in lower cylinder body.One end of diversion trench is connected to a unloading port, and the other end is connected to the bottom of the plunger shaft.It is come into full contact with when hydraulic oil is flowed out through diversion trench with piston rod, play lubricating action and forms oil film in piston rod gap.When plunger shaft is compressed, a small amount of oil liquid enters annular groove, forms oil liquid turbulent flow, prevents further leakage.The invention also discloses piston compressors.
Description
Technical field
The present invention relates to a kind of component of air compressor more particularly to a kind of stepless air adjusting mechanisms and piston type
Compressor.
Background technique
In oil refining industry, the flow adjusting of reciprocating compressor is carried out, frequently with the mode of bypass reflux to match variation
Technical load.Bypass adjusts capable of the completing tolerance adjusting well of the task, but causes a large amount of wastes of electric energy.Reciprocating compression
Machine tolerance stepless regulating system solves the problems, such as this.It controls the movement of intake valve by intelligent Actuator, using prolonging
The mode of close later intake valve realizes the matching of compressor actual load and technical load.As special open 201084771,
Described in US005833209A etc., executing agency includes electromagnetic component, hydraulic unit and air inlet component.Execution unit also can refer to
Described in US20040091365A1 and US20150139835A1 etc..Existing executing agency's movement is unsmooth, and oil leak amount is more than limit
Value.
Summary of the invention
The invention proposes a kind of stepless air adjusting mechanism and piston compressors, reduce mandril frictional resistance, subtract
Small oil leak amount.
The technical scheme of the present invention is realized as follows:
A kind of stepless air adjusting mechanism, which is characterized in that including electromagnetic component, hydraulic unit and air inlet component, the electricity
Magnet assembly includes a spool, which protrudes into the hydraulic unit, which includes a piston rod, which drives institute
State air inlet component, wherein the hydraulic unit further include:
Oiled-plate method is crossed, this crosses oiled-plate method with valve chamber and the fuel feed hole, intercommunicating pore, the oil outlet that are connected to the valve chamber, and the spool protrudes into
The valve chamber, the spool are connected to the fuel feed hole and intercommunicating pore or are connected to fuel feed hole and intercommunicating pore,
Upper cylinder body, the upper cylinder body have plunger shaft, oil discharge passage, and the piston rod is slidably mounted in the plunger shaft, should
It is connected to the intercommunicating pore at the top of plunger shaft, the oil outlet, the oil discharge passage are connected at the top of the oil discharge passage
Lower curtate be connected to the bottom of plunger shaft；
Lower cylinder body, the lower cylinder body is interior to have a guided rings, which leads on the piston rod and with piston rod composition
Chute, one end of the diversion trench are connected to a unloading port, and the other end is connected to the bottom of the plunger shaft.
Preferably, the spool has the first blocking portion and the second blocking portion, which seals the valve chamber
Open side, when the spool is to the valve chamber medial movement, the second blocking portion partition fuel feed hole and intercommunicating pore, when described
Spool is to when movement, second blocking portion separates oil outlet and intercommunicating pore on the outside of the valve chamber.
Preferably, the piston rod lateral surface is equipped with annular groove, the inner sidewall composition oil seal of the annular groove and plunger shaft
Area.
Preferably, the hydraulic unit further includes link block, which covers at the outside of piston rod, the bottom of the link block
Portion is equipped with filler.
Preferably, the lower section positioned at the diversion trench of the guided rings is equipped with sealing ring, and the bottom of the lower cylinder body is equipped with
Leakage port, leakage port are located at the lower section of sealing ring.
Preferably, the upper cylinder body and lower cylinder body link together through a hex screw.
Preferably, the electromagnetic component further includes explosion-proof shell, which was fixed on the side of oiled-plate method, the spool position
In in the explosion-proof shell, which has earthing pole in one.
Preferably, which stretches out the explosion-proof shell through a conductive component, which is mounted on by insulating sheath
In explosion-proof shell.
Preferably, the air inlet component includes valve seat, valve deck, buffer spring, valve block and pressure fork device.
A kind of piston compressor, which is characterized in that including the stepless air adjusting mechanism.
Implement this stepless air adjusting mechanism of the invention, has the advantages that hydraulic oil is flowed out through diversion trench
When come into full contact with piston rod, play lubricating action and piston rod gap formed oil film.Plunger shaft compress when, a small amount of oil liquid into
Enter annular groove, form oil liquid turbulent flow, prevents further leakage.
Detailed description of the invention
Fig. 1 is the schematic diagram of stepless air adjusting mechanism of the invention；
Fig. 2 is the schematic diagram of electromagnetic component and hydraulic unit of the invention；
Fig. 3 is the cross-sectional view of hydraulic unit of the invention；
Fig. 4 is the schematic diagram of piston compressor of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Such as Fig. 1 to 3, this stepless air adjusting mechanism of the invention include electromagnetic component 100, hydraulic unit 200 and
Air inlet component 300.Electromagnetic component 100 controls the movement of hydraulic unit 200, and hydraulic unit 200 adjusts the opening and closing of air inlet component 300.
Electromagnetic component 100 includes spool 110, explosion-proof shell 120.Explosion-proof shell 120 was fixed on the side of oiled-plate method 220, the spool 110
In in the explosion-proof shell 120, which has earthing pole 121 in one.Spool 110 stretches out described anti-through a conductive component 130
Blasting shell 120, the conductive component 130 are mounted in explosion-proof shell 120 by insulating sheath 140.The spool 110 protrudes into the hydraulic section
Part 200,100 energization back valve core 110 of electromagnetic component move left and right, and control the working condition of hydraulic unit 200.
Hydraulic unit 200 includes a piston rod 210, crosses oiled-plate method 220, upper cylinder body 230, lower cylinder body 240 and link block
250.Piston rod 210 drives air inlet component 300.Oiled-plate method 220 is crossed with valve chamber 221 and the fuel feed hole being connected to the valve chamber 221
222, intercommunicating pore 223, oil outlet 224.Spool 110 protrudes into the valve chamber 221, the spool 110 be connected to the fuel feed hole 222 be connected to
Hole 223 or connection fuel feed hole 222 and intercommunicating pore 223.Upper cylinder body 230 has plunger shaft 231, oil discharge passage 232.Piston rod
210 are slidably mounted in the plunger shaft 231, and the top of the plunger shaft 231 is connected to the intercommunicating pore 223, oil discharge passage
232 top is connected to the oil outlet 224, and the lower curtate of oil discharge passage 232 is connected to the bottom of plunger shaft 231.Lower cylinder body 240
Inside there are a guided rings 241.241 sets of guided rings form diversion trench 242 on the piston rod 210 and with the piston rod 210, should
One end of diversion trench 242 is connected to a unloading port 243, and the other end is connected to the bottom of the plunger shaft 231.Upper cylinder body 230 with
Lower cylinder body 240 links together through a hex screw 244.When external electric signal control valve core 110 moves inward, fuel feed hole
Oil liquid in 222 enters intercommunicating pore 223 through valve chamber 221, then enters plunger shaft 231 from intercommunicating pore 223.The oil liquid of plunger shaft 231
Piston rod 210 is driven to move down, driving air inlet component 300 is kept it turned on.External electric signal control valve core 110 is outward
When mobile, piston rod 210 moves up under the reaction force of air inlet component 300, and the oil liquid in plunger shaft 231 enters through being connected to
Hole 223 enters oil outlet 224, then enters unloading port 243 from oil discharge passage 232 along diversion trench 242.Oil liquid in flow process with
210 side wall of piston rod comes into full contact with, and reduces the moving resistance of piston rod 210.
In the present invention, lower cylinder body 240 has a guide part 245, which is directly sleeved in piston rod 210 simultaneously
The gap 246 for being less than 0.5mm is formed with piston rod 210.Oil liquid in oil discharge passage 232 enters diversion trench from the gap 246
242.When piston rod 210 fast moves, hydraulic oil forms oil film in gap 246, and air is avoided to enter plunger shaft 231.Preferably
, spool 110 has the first blocking portion 111 and the second blocking portion 112, which seals opening for the valve chamber 221
Mouth side 225.When the spool 110 is to 221 medial movement of valve chamber, second blocking portion 112 separate fuel feed hole 222 with
Intercommunicating pore 223.When the spool 110 is to when moving on the outside of the valve chamber 221, second blocking portion 112 separates oil outlet 224
With intercommunicating pore 223.
Referring to Fig. 3,210 lateral surface of piston rod is equipped with annular groove 211, the inner sidewall group of the annular groove 211 and plunger shaft 231
At oil seal area.When plunger shaft 231 is compressed, a small amount of oil liquid enters annular groove 211, forms oil liquid turbulent flow, prevents further leakage.
The lower section positioned at diversion trench 242 of guided rings 241 is equipped with sealing ring 247, and the bottom of the lower cylinder body 240 is equipped with leakage port 248,
Leakage port 248 is located at the lower section of sealing ring 247.250 sets of the link block outsides in piston rod 210, the bottom of the link block 250 are set
There is filler 251.Portion gas in air inlet component 300 is flowed up from link block 250 and the gap of piston rod 210.Sealing ring
247, which limit the gas, moves up and it is discharged from leakage port 248.For the convenience of manufacturer, leakage port 248 and unloading port 243 are equal
Equipped with pipe connections.Thread seal cap 233 is arranged in valve chamber 221, the isostructural turning of oil discharge passage 232.
Air inlet component 300 of the invention includes valve seat 310, valve deck 320, buffer spring 330, valve block 340 and pressure fork dress
Set 360.It is equipped with the first groove 321 and the second groove 322 in valve deck 320, is equipped with buffer spring 330 in the first groove 321, second
Valve block 340 is equipped in groove 322.Buffer spring 330 withstands on valve block 340 on valve seat 310, and valve seat 310 is equipped with air inlet
311, valve block 340 is equipped with venthole 341, air inlet 311 and 341 stagger arrangement of venthole distribution.Valve seat 310, valve deck 320 and valve block
A pin shaft 312 is equipped between 340, which can fix radial position between valve seat 310, valve deck 320 and valve block 340,
Positional shift between three is prevented, guarantees that air inlet component 300 works normally.Valve block 340 moves up and down under driving part effect,
Realize stomata folding.Fork device 360 is pressed to be arranged above valve seat 310, pressure fork device 360 includes pushing rod sleeve 361,363 and of disk
Pressure fork 364.Push rod 350 and spring 362 are equipped in pushing rod sleeve 361, pressure fork is evenly distributed on disk 363, and pressure fork 364 is partly
It is contacted in air inlet 311 and with valve block 340.425 bar of piston drives push rod 350 to move down, so that 364 top of pressure fork
Valve opening piece 340.When 425 bar of piston loses top pressure, spring 362 ejects push rod 350.Pressure fork 364 unclamps valve block 340.This
Application opens the folding amount of valve block 340 Yu valve seat 310 by pressure fork device 360, can control the air inflow of air inlet component 300,
To adapt to the actual condition that compressor changes with the needs of process flow or gas consumption equipment.The pressure in cylinder is kept to stablize,
Due to work done during compression almost with capacity it is in direct ratio reduce, so there are also very high performance driving economy.
Referring to Fig. 4, the invention also discloses piston compressors 400 comprising first support 410, in first support 410
Equipped with crankcase 420, the left and right of crankcase 420 is connected separately with the first connect cylinder component 421 and the second connect cylinder component 422.First
Connect cylinder component 421 and the second connect cylinder component 422 are connected separately with the second cylinder 423 and the first cylinder 424, and the first cylinder 424 is logical
The support of second support 411 is crossed, the second cylinder 423 is supported by third bracket 412.Crankshaft connecting rod system is equipped in crankcase 420
430,433 mechanism 430 of crankshaft-link rod includes crankshaft 431, major part watt 432, connecting rod 433, microcephaly watt 434, microcephaly watt 434 and cross
Head is hinged.It is equipped with piston 425 in first cylinder 424 and the second cylinder 423, piston 425 is connected by 425 bar of piston and crosshead
It connects.Air valve is designed on first cylinder 424 and the second cylinder 423, air valve includes air inlet component 300 and exhaust valve 301, intake section
Part 300 and 301 circular array of exhaust valve are on the first cylinder 424 and the second cylinder 423.The volume of first cylinder 424 is less than
The volume of second cylinder 423.The exhaust valve of first cylinder 424 is connected to the air inlet component 300 of the second cylinder 423 by pipeline,
The gas compressed in the first cylinder 424 enters in the second cylinder 423, carries out two-stage compression.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of stepless air adjusting mechanism, which is characterized in that described including electromagnetic component, hydraulic unit and air inlet component
Electromagnetic component includes a spool, which protrudes into the hydraulic unit, which includes a piston rod, piston rod driving
The air inlet component, wherein the hydraulic unit further include:
Oiled-plate method is crossed, this crosses oiled-plate method with valve chamber and the fuel feed hole, intercommunicating pore, the oil outlet that are connected to the valve chamber, and the spool protrudes into
The valve chamber, the spool are connected to the fuel feed hole and intercommunicating pore or are connected to fuel feed hole and intercommunicating pore,
Upper cylinder body, the upper cylinder body have plunger shaft, oil discharge passage, and the piston rod is slidably mounted in the plunger shaft, should
It is connected to the intercommunicating pore at the top of plunger shaft, the oil outlet, the oil discharge passage are connected at the top of the oil discharge passage
Lower curtate be connected to the bottom of plunger shaft；
Lower cylinder body, the lower cylinder body is interior to have a guided rings, which leads on the piston rod and with piston rod composition
Chute, one end of the diversion trench are connected to a unloading port, and the other end is connected to the bottom of the plunger shaft.
2. stepless air adjusting mechanism according to claim 1, which is characterized in that the spool have the first blocking portion and
Second blocking portion, first blocking portion seal the open side of the valve chamber, when the spool is to the valve chamber medial movement, institute
The second blocking portion partition fuel feed hole and intercommunicating pore are stated, when the spool is mobile to the valve chamber outside, second blocking portion
Separate oil outlet and intercommunicating pore.
3. stepless air adjusting mechanism according to claim 1, which is characterized in that the piston rod lateral surface is equipped with annular
The inner sidewall of slot, the annular groove and plunger shaft forms oil seal area.
4. according to claim 1 to stepless air adjusting mechanism described in 3 any one, which is characterized in that the hydraulic unit
It further include link block, which covers in the outside of piston rod, and the bottom of the link block is equipped with filler.
5. according to claim 1 to stepless air adjusting mechanism described in 3 any one, which is characterized in that the position of the guided rings
It is equipped with sealing ring in the lower section of the diversion trench, the bottom of the lower cylinder body is equipped with leakage port, and leakage port is located under sealing ring
Side.
6. stepless air adjusting mechanism according to claim 1, which is characterized in that the upper cylinder body and lower cylinder body are through one or six
Angle screw links together.
7. stepless air adjusting mechanism according to claim 1, which is characterized in that the electromagnetic component further includes explosion-proof
Shell, the explosion-proof shell were fixed on the side of oiled-plate method, and the spool is located in the explosion-proof shell, which has earthing pole in one.
8. stepless air adjusting mechanism according to claim 7, which is characterized in that the spool stretches out institute through a conductive component
Explosion-proof shell is stated, which is mounted in explosion-proof shell by insulating sheath.
9. according to claim 1 to stepless air adjusting mechanism described in 3 any one, which is characterized in that the air inlet component
Including valve seat, valve deck, buffer spring, valve block and pressure fork device.
10. a kind of piston compressor, which is characterized in that including the stepless air adjusting mechanism as described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224009.5A CN109185252A (en) | 2018-10-19 | 2018-10-19 | Stepless air adjusting mechanism and piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224009.5A CN109185252A (en) | 2018-10-19 | 2018-10-19 | Stepless air adjusting mechanism and piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185252A true CN109185252A (en) | 2019-01-11 |
Family
ID=64946347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811224009.5A Withdrawn CN109185252A (en) | 2018-10-19 | 2018-10-19 | Stepless air adjusting mechanism and piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185252A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973461A (en) * | 2019-04-08 | 2019-07-05 | 江西资生科技有限公司 | A kind of explosive-proof hydraulic executing agency |
| CN109973356A (en) * | 2019-04-08 | 2019-07-05 | 江西资生科技有限公司 | Stepless air adjusting mechanism and reciprocating compressor |
| CN114687997A (en) * | 2022-02-21 | 2022-07-01 | 泰兴市兴华气阀有限公司 | Stepless air volume adjusting device of reciprocating compressor |
-
2018
- 2018-10-19 CN CN201811224009.5A patent/CN109185252A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973461A (en) * | 2019-04-08 | 2019-07-05 | 江西资生科技有限公司 | A kind of explosive-proof hydraulic executing agency |
| CN109973356A (en) * | 2019-04-08 | 2019-07-05 | 江西资生科技有限公司 | Stepless air adjusting mechanism and reciprocating compressor |
| CN109973461B (en) * | 2019-04-08 | 2020-08-04 | 江西资生科技有限公司 | Explosion-proof hydraulic actuator |
| CN114687997A (en) * | 2022-02-21 | 2022-07-01 | 泰兴市兴华气阀有限公司 | Stepless air volume adjusting device of reciprocating compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190111 |