CN107313925B - Linear oilless (oil free) compressor - Google Patents
Linear oilless (oil free) compressor Download PDFInfo
- Publication number
- CN107313925B CN107313925B CN201710407506.8A CN201710407506A CN107313925B CN 107313925 B CN107313925 B CN 107313925B CN 201710407506 A CN201710407506 A CN 201710407506A CN 107313925 B CN107313925 B CN 107313925B
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- piston
- cylinder
- level
- mover
- exhaust valve
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Classifications
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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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0215—Lubrication characterised by the use of a special lubricant
Abstract
The present invention provides a kind of linear oilless (oil free) compressor, comprising: the first cylinder, the second cylinder, first piston and second piston with the first cylinder face setting；The first piston is set in first cylinder, and is lubricated with first cylinder gas, and the second piston is set in second cylinder, and is lubricated with second cylinder gas；The first piston moves in the same direction with the second piston, and when the first piston air-breathing, the second piston is calmed the anger, the second piston air-breathing when the first piston is calmed the anger.The compressor of the present embodiment uses gas lubrication, and then simplifies the structure of compressor, reduces the volume of compressor, while first piston and second piston work alternatively, and realize the even running of compressor, reduce its mechanical oscillation and operating noise.
Description
Technical field
The present invention relates to refrigeration technology field more particularly to a kind of linear oilless (oil free) compressors.
Background technique
Refrigeration is widely used in industry and life with heat pump, such as refrigerator, air-conditioning and air source heat pump system, mainstream skill
Art is steam compression type system.The core component of steam compression type system first is that compressor.Compressor converts electrical energy into machine
Tool energy, low-temp low-pressure gaseous refrigerant boil down to high temperature and high pressure gas.
The compressor of common vapor compression system needs lubricating oil, but lubricating oil enters heat exchanger and can slacken heat exchange
Performance, lubricating oil, which enters flow controller component, will lead to system jams, and then influence the Performance And Reliability of system.To slacken this shadow
It rings, it usually needs setting oil eliminator undoubtedly increases the complexity and cost of system in this way.Meanwhile it requiring in the prior art
Working medium can dissolve each other with lubricating oil, greatly reduce the range of choice of working medium.
Summary of the invention
In order to solve the technical problems mentioned in the background technology, the present invention provides a kind of linear oilless (oil free) compressor, passes through
Two comparable compression cylinders are set for a compressor, and use gas lubrication, and then avoid oil lubrication bring is a series of from asking
Topic, while the compressor of the embodiment of the present invention its compact-sized, stable working.
The embodiment of the present invention provides a kind of linear oilless (oil free) compressor, comprising: the first cylinder and the first cylinder face
The second cylinder, first piston and the second piston being arranged；The first piston is set in first cylinder, and with described
One cylinder gas lubrication, the second piston are set in second cylinder, and are lubricated with second cylinder gas；
The first piston moves in the same direction with the second piston, the second piston pressure when the first piston air-breathing
Gas, the second piston air-breathing when the first piston is calmed the anger.
In a kind of possible implementation of the present embodiment, the compressor further includes stator module and mover assembly,
The mover assembly is located at the outside of first cylinder and second cylinder respectively, and the stator module is located at described
The outside of mover assembly；
The first piston and the second piston are done back and forth under the driving of the stator module and the mover assembly
Movement.
In the alternatively possible implementation of the present embodiment, the mover assembly includes symmetrically arranged first mover
With the second mover, the stator module includes symmetrically arranged first stator and the second stator；
First mover is located at the outer wall side of first cylinder and second cylinder respectively, and described second is dynamic
Son is located at the outer wall other side of first cylinder and second cylinder respectively, and first stator is located at described first
The outside of mover, second stator are located at the outside of second mover.
Optionally, first stator, second stator, first mover and second mover are semi arch
Shape.
Further, the bottom of the first piston and the bottom of the second piston are respectively provided at least one one-way air inlet
Valve.
In the alternatively possible implementation of the present embodiment, it is arranged between first cylinder and second cylinder
There are first exhaust valve plate and second exhaust valve plate, the first exhaust valve plate and the second exhaust valve plate are connected by compressed spring
It connecing, the first exhaust valve plate is pressed on the exhaust outlet of first cylinder under the pressure of the compressed spring, and described
Two exhaust valve plates are pressed on the exhaust outlet of second cylinder under the pressure of the compressed spring.
In the alternatively possible implementation of the present embodiment, the compressor further includes base cylinder, the base cylinder
Side wall in the middle part of be provided with gas vent, first cylinder is plugged in one end of the base cylinder, and second cylinder plugs
In the other end of the base cylinder, the first exhaust valve plate and the second exhaust valve plate are located in the base cylinder
Portion, and with the gas vent face, the first exhaust valve plate and the second exhaust valve plate are respectively and in the base cylinder
Wall clearance fit forms discharge chamber.
In the alternatively possible implementation of the present embodiment, the compressor further includes muffler, the muffler
Side wall on be provided with the exhaust pipe being connected to the inner cavity of the muffler, the muffler is set in the side wall of the base cylinder
On, it the exhaust pipe and the gas vent face and is connected to.
In the alternatively possible implementation of the present embodiment, the side wall of first cylinder and second cylinder
It is provided with multiple air bearing shallow cavities with throttle orifice on side wall, the inner wall of the base cylinder side with first cylinder respectively
Runner is formed between wall and the side wall of second cylinder, the runner is connected to the air bearing shallow cavity；
Gas in the runner is pressed into the air bearing shallow cavity, in the side wall and first cylinder of the first piston
Inner wall between and the second piston side wall and first cylinder inner wall between form air cushion.
In the alternatively possible implementation of the present embodiment, the first piston and the second piston include one
Grade air reservoir, the inner wall of the side wall of the first piston and first cylinder and the side wall of the second piston and described the
It is respectively formed one stage of compression chamber between the inner wall of two cylinders, is provided on the side wall of the one stage of compression chamber and the one stage of compression
The level-one intake valve and level-one exhaust valve of chamber connection, the bottom end of the first piston and the first exhaust valve plate and described
Two-stage compression chamber, the level-one exhaust valve and described one are respectively formed between the bottom end of second piston and the second exhaust valve plate
Grade air reservoir connection, the breather cheek valve are connected to the level-one air reservoir and the two-stage compression chamber respectively, the level-one air inlet
Valve and the level-one exhaust valve are check valve；
When the first piston calms the anger the second piston air-breathing, the level-one intake valve of the first piston is closed, institute
The level-one exhaust valve and breather cheek valve for stating first piston are opened, and the first piston is by the gas in corresponding one stage of compression chamber
Body is pressed into the level-one air reservoir of the first piston, and the gas in the level-one air reservoir passes through single intake valve of the first piston
It is pressed into the two-stage compression chamber of the first piston, and is pressed into the discharge chamber from the two-stage compression chamber of the first piston
In；Corresponding, level-one intake valve, level-one exhaust valve and the breather cheek valve of the second piston are opened, and low-pressure gas passes through
The level-one intake valve of the second piston is drawn into the one stage of compression chamber of the second piston, the gas in the one stage of compression chamber
Body is sucked in the level-one air reservoir of the second piston by the level-one exhaust valve of the second piston, gas in the level-one air reservoir
It is sucked in the two-stage compression chamber of the second piston by the breather cheek valve of the second piston.
In the alternatively possible implementation of the present embodiment, first stator and second stator include branch
Frame and coil, the bracket are formed by stacking by silicon steel, and form at least one pole shoe, and coil is arranged on the pole shoe, described
One end of first stator and second stator is provided with the first stator baffle, first stator and second stator
The other end is provided with the second stator baffle.
In the alternatively possible implementation of the present embodiment, first mover and second mover include moving
Submounts, the mover iron core being fixed on the mover bracket, and the magnet being connect with the mover iron core.
In the alternatively possible implementation of the present embodiment, the compressor further includes the first mover end plate, second
Mover end plate, the first base end plate and the second base end plate,
The first base end plate is fixed on one end of the base cylinder, and is connected with the first stator baffle
It connects, the second base end plate is fixed on the other end of the base cylinder, and is connect with the second stator baffle；Institute
It states the first mover end plate to be pressed on the first base end plate, and one with the first piston and the mover bracket respectively
End connection, the second mover end plate is pressed on the second base end plate, and respectively with the second piston and described dynamic
The other end of submounts connects.
Construction and its other goals of the invention and beneficial effect of the invention will be in conjunction with the accompanying drawings to preferred reality
Apply the description of example and more obvious and easy to understand.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram for the linear oilless (oil free) compressor that the embodiment of the present invention one provides；
Fig. 2 is the part perspective view of the explosion for the linear oilless (oil free) compressor that the embodiment of the present invention one provides；
Fig. 3 is the working principle diagram for the linear oilless (oil free) compressor that the embodiment of the present invention one provides；
Fig. 4 is the first stator or the second stator structure schematic diagram in the present embodiment one；
Fig. 5 is the first mover or the second Structure of mover schematic diagram in the present embodiment one；
Fig. 6 is the connection signal of base cylinder and muffler in linear oilless (oil free) compressor provided by Embodiment 2 of the present invention
Figure；
Fig. 7 is the two-stage compression schematic diagram for the linear oilless (oil free) compressor that the embodiment of the present invention three provides.
Detailed description of the invention:
10: the first cylinders；
20: the second cylinders；
30: first piston；
40: second piston；
50: stator module；
51: the first stators；
52: the second stators；
501: the first stator baffles；
502: the second stator baffles；
503: coil；
504: bracket；
60: mover assembly；
61: the first movers；
62: the second movers；
601: mover bracket；
602: mover iron core；
603: magnet；
604: the first mover end plates；
605: the second mover end plates；
70: first exhaust valve plate；
71: second exhaust valve plate；
72: compressed spring；
80: base cylinder；
84: gas vent；
81: the first base end plates；
82: the second base end plates；
83: balancing spring；
90: muffler；
91: exhaust pipe；
101: air bearing shallow cavity；
102: runner；
103: discharge chamber；
11: level-one air reservoir；
12: one stage of compression chamber；
13: breather cheek valve；
14: level-one intake valve；
15: level-one exhaust valve；
16: two-stage compression chamber.
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.
The embodiment of the present invention provides a kind of linear oilless (oil free) compressor, the compressor not only realize compressor without glossy
It is sliding, and by two symmetrical compression cylinders of setting, in a compression cylinder air-breathing, another compression cylinder is calmed the anger, so that
Compressor balance operation, reduces mechanical oscillation, improves the functional reliability of compressor.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the assembling schematic diagram for the linear oilless (oil free) compressor that the embodiment of the present invention one provides, and Fig. 2 is that the present invention is implemented
The part perspective view of the explosion for the linear oilless (oil free) compressor that example one provides, Fig. 3 are the linear nothing that the embodiment of the present invention one provides
The working principle diagram of hydraulic shrinking machine.As shown in Figure 1 to Figure 3, the compressor of the present embodiment includes the first cylinder 10 and described first
The second cylinder 20, first piston 30 and the second piston 40 of 10 face of cylinder setting；The first piston 30 is set in described
In one cylinder 10, and with 10 gas lubrication of the first cylinder, the second piston 40 is set in second cylinder 20, and
With 20 gas lubrication of the second cylinder；The first piston 30 and the movement in the same direction of second piston 40, when first work
The second piston 40 is calmed the anger when filling in 30 air-breathing, 40 air-breathing of second piston when the first piston 30 is calmed the anger.
Specifically, as shown in Figure 1 to Figure 2, the first cylinder 10 and 20 face of the second cylinder setting of the present embodiment, the first gas
The exhaust outlet face of the exhaust outlet of cylinder 10 and the second cylinder 20.First piston 30 is set in the first cylinder 10 and can be along first
The inner wall of cylinder 10 slides, and second piston 40 is set in the second cylinder 20 and can slide along the inner wall of the second cylinder 20.This
Gas profit is all made of between the first piston 30 of embodiment and the first cylinder 10 and between second piston 40 and the second cylinder 20
It is sliding.
Due to gas transporting (diffusivity, viscosity and heat conductivity), adsorptivity and compressibility the features such as, rubbing
When, under the action of hydrodynamic effect, hydrostatic effects and extrusion effect, the complete air film of one layer of formation be allowed to bearing load,
Friction is reduced, the abrasion of compressor is thereby reduced, improves the service life of compressor.Meanwhile gas lubrication does not need list
Solely setting components, and then the less number of components of compressor, simplify system, reduce compressor manufacture and maintenance at
This.
Further, as shown in figure 3, the first piston 30 of the present embodiment is identical with the direction of motion of second piston 40, work
Make state alternating.For example, first piston 30 is calmed the anger when first piston 30 and second piston 40 move to the right (or to the left) simultaneously
40 air-breathing of second piston, when first piston 30 and second piston 40 move to the left (or to the left) simultaneously, 30 air-breathing of first piston the
Two pistons 40 are calmed the anger, and air-breathing balances each other such compressor with exhaust in one cycle, and then realizes the steady fortune of compressor
Row, reduces its mechanical oscillation and operating noise.
Optionally, the reciprocating motion of the first piston 30 and second piston 40 of the present embodiment can be by crank link mechanism
Driving, it optionally can also be and to be directly driven by a motor, the present embodiment is without limitation.
In a kind of possible implementation of the present embodiment, as illustrated in figs. 1 and 2, when first piston 30 and second are lived
When plug 40 is motor direct-drive, the compressor of the present embodiment can also be described dynamic including stator module 50 and mover assembly 60
Sub-component 60 is located at the outside of first cylinder 10 and second cylinder 20 respectively, and the stator module 50 is located at institute
State the outside of mover assembly 60；The first piston 30 is with the second piston 40 in the stator module 50 and the mover group
It moves reciprocatingly under the driving of part 60.
The mover assembly 60 and stator module 50 of the present embodiment form linear motor, when logical to the coil on stator module 50
When electric, mover assembly 60 and stator module 50 generate reciprocal linear driving force, under the driving of the reciprocal linear driving force
First piston 30 and second piston 40 do reciprocating linear motion.That is the compressor of the present embodiment eliminates crank link mechanism, into
And the structure of compressor is simplified, reduce the volume of compressor.The row of first piston 30 and second piston 40 in the present embodiment
Journey can be adjusted by input voltage, so that continuously adjusting for compressor flowrate can be realized, so that compressor is entirely working
Higher efficiency is all kept in range.
Optionally, the mover assembly 60 of the present embodiment and stator module 50 are located at the first cylinder 10 and the second cylinder 20
Two sides.
Specifically, as depicted in figs. 1 and 2, the mover assembly 60 of the present embodiment includes symmetrically arranged first mover, 61 He
Second mover 62, the stator module 50 include symmetrically arranged first stator 51 and the second stator 52；First mover 61
It is located at the outer wall side of first cylinder 10 and second cylinder 20 respectively, second mover 62 is located at institute respectively
The outer wall other side of the first cylinder 10 and second cylinder 20 is stated, first stator 51 is located at first mover 61
Outside, second stator 52 are located at the outside of second mover 62.The present embodiment is by stator module 50 and stator module
50 separately designs, it is easy to process in this way, while installation also facilitates, and then improves the manufacture efficiency of compressor and install reliable
Property.
First stator 51, the second stator 52, the first mover 61 and the second mover 62 of the present embodiment can be slab construction
It may be semicircular arc structure, the present embodiment is without limitation, sets with specific reference to actual needs.
Fig. 4 is the first stator or the second stator structure schematic diagram in the present embodiment one.In 51 He of the first stator of the present embodiment
In a kind of possible implementation of second stator 52, as shown in Figure 2 and Figure 4, first stator 51 and second of the present embodiment is fixed
Son 52 includes bracket 504 and coil 503, and bracket 504 is formed by stacking by silicon steel, and forms at least one pole shoe, on each pole shoe
It is arranged with coil 503, and one end of the first stator 51 and the second stator 52 is provided with the first stator baffle 501, first
The other end of stator 51 and the second stator 52 is provided with the second stator baffle 502.
In a kind of possible implementation of the present embodiment the first mover 61 and the second mover 62, (Fig. 5 as shown in Figure 5
For the first mover in the present embodiment one or the second Structure of mover schematic diagram).
Specifically, as shown in Figure 2 and Figure 5, first mover 61 and the second mover 62 of the present embodiment include mover bracket
601, the mover iron core 602 being fixed on mover bracket 601, and the magnet 603 being connect with mover iron core 602, meanwhile,
First mover 61 of the present embodiment and one end of the second mover 62 are provided with the first mover end plate 604, the first mover 61 and second
The other end of mover 62 is provided with the second mover end plate 605.
Optionally, as shown in figure 3, the bottom of the first piston 30 of the present embodiment and the bottom of the second piston 40 are all provided with
At least one breather cheek valve 13 is set, which closes in corresponding piston gas-pressing, opens in piston air-breathing.Example
Such as when first piston 30 calms the anger 40 air-breathing of second piston, the breather cheek valve 13 on first piston 30 is closed, so that first is living
Plug 30 extrudes the gas in the first cylinder 10, and the breather cheek valve 13 in corresponding second piston 40 is opened, so that second is living
Low-pressure gas is input in the second cylinder 20 by plug 40 by the breather cheek valve 13.
With continued reference to shown in Fig. 3, first row is provided between first cylinder 10 and second cylinder 20 of the present embodiment
Valve plate 70 and second exhaust valve plate 71, the first exhaust valve plate 70 pass through compressed spring 72 with the second exhaust valve plate 71
Connection, the first exhaust valve plate 70 are pressed on the exhaust outlet of first cylinder 10 under the pressure of the compressed spring 72
On, the second exhaust valve plate 71 is pressed on the exhaust outlet of second cylinder 20 under the pressure of the compressed spring 72.
The first piston 30 and second piston 40 of the present embodiment share a discharge chamber 103, so reduce compressor number of components and
Structural complexity.
In actual work, when first piston 30 calms the anger 40 air-breathing of second piston, first piston 30 is by the first cylinder 10
In gas extrusion, the pressure rise of gas in the first cylinder 10.When the pressure of gas is greater than compressed spring 72 to first exhaust
When the elastic force of valve plate 70, gas opens the first exhaust valve plate 70 being pressed on 10 exhaust outlet of the first cylinder, the first cylinder 10
In gas enter discharge chamber 103.At this point, 40 air-breathing of second piston, second piston 40 passes through breather cheek valve 13 for low pressure gas
Body sucks in the second cylinder 20, since the gas pressure in the second cylinder 20 is less than compressed spring 72 to second exhaust valve plate 71
Elastic force, therefore second exhaust valve plate 71 is pressed on the exhaust outlet of the second cylinder 20 under the elastic force of compressed spring 72.When first
When 30 air-breathing second piston 40 of piston is calmed the anger, the opposite working principle of the two working condition is same as described above, reference foregoing description,
This is repeated no more.
Fig. 6 is the connection signal of base cylinder and muffler in linear oilless (oil free) compressor provided by Embodiment 2 of the present invention
Figure.On the basis of the above embodiments, as shown in Figures 1 to 6, the compressor of the present embodiment further includes base cylinder 80, the machine
It is provided with gas vent 84 in the middle part of the side wall of seat cylinder 80, first cylinder 10 is plugged in one end of the base cylinder 80, described
Second cylinder 20 is plugged in the other end of the base cylinder 80, the first exhaust valve plate 70 and the second exhaust valve plate 71
Positioned at the middle part of the base cylinder 80, and with 84 face of gas vent, the first exhaust valve plate 70 and the second exhaust
Valve plate 71 forms discharge chamber 103 with the inner wall clearance fit of the base cylinder 80 respectively.
First cylinder 10 of the present embodiment can pass through welding, threaded connection, key connection, pin connection or above-mentioned each connection
Combination fixation be plugged in one end of base cylinder 80, similarly the second cylinder 20 can also pass through welding, threaded connection, key connect
Connect, pin connection or it is above-mentioned respectively connect combination fixation be plugged in the other end of base cylinder 80, the present embodiment is to the first cylinder
10, the second cylinder 20 and base cylinder 80 are fixedly connected with mode with no restrictions.At this point, first exhaust valve plate 70 and second row air valve
Plate 71 is placed exactly in the middle part of base cylinder 80, and with 84 face of the gas vent of base cylinder 80.The first exhaust valve plate 70 and second
It is vented clearance fit between valve plate 71 and the inner wall of base cylinder 80, and then forms discharge chamber 103, the first cylinder 10 and the second cylinder
Gas in 20 is discharged into the discharge chamber 103, then is discharged by the gas vent 84 of base cylinder 80.
Optionally, as shown in figs. 1,2 and 6, the compressor of the present embodiment further includes muffler 90, the muffler 90
Side wall on be provided with the exhaust pipe 91 being connected to the inner cavity of the muffler 90, the muffler 90 is set in the base cylinder
On 80 side wall, the exhaust pipe 91 and 84 face of gas vent and it is connected to.
Wherein, the side wall of exhaust pipe 91 and muffler 90 is integrally formed (such as passing through the methods of casting), optionally, may be used also
It is a through-hole to be arranged on the side wall of muffler 90, exhaust pipe 91 is fixed in the through hole by the methods of welding sealing.
The present embodiment, so that compressor is compact-sized, is subtracted by the way that muffler 90 to be set on the side wall of base cylinder 80
The small volume of compressor.Gas in discharge chamber 103 is discharged by the gas vent 84 and exhaust pipe 91 of base cylinder 80, and is stretched out
The exhaust pipe 91 of setting is convenient to be connect with other equipment, so that the high pressure gas for crossing compressor compresses is drained into other equipment
In, and then improve the ease of use of compressor.
Optionally, as shown in Figure 2 and Figure 6, the compressor of the present embodiment further includes the first base end plate 81 and the second base
End plate 82, the first base end plate 81 are fixed on one end of base cylinder 80, and are connect with the first stator baffle 501.Second
Base end plate 82 is fixed on the other end of base cylinder 80, and is connect with the second stator baffle 502.First mover end plate
604 are pressed on the first base end plate 81, and connect respectively with one end of first piston 30 and mover bracket 601.Second mover
End plate 605 is pressed on the second base end plate 82, and connect respectively with the other end of second piston 40 and mover bracket 601.This
Knot of the embodiment to the first base end plate 81, the second base end plate 82 and the first mover end plate 604 and the second mover end plate 605
Structure with no restrictions, is set with specific reference to actual needs.
In a kind of possible mounting means of the present embodiment, the present embodiment can be fixed by the first cylinder 10 by bolt
In one end of base cylinder 80, the second cylinder 20 is fixed on to the other end of base cylinder 80.Then, first piston 30 is set in
In one cylinder 10, second piston 40 is set in the second cylinder 20, it should be noted that first piston 30 is in the first cylinder 10
Middle reciprocating motion, without departing from the first cylinder 10, same second piston 40 will not be detached from the second cylinder 20.Then, it uses
First base end plate 81 is fixed on the first cylinder 10 by bolt, and the second base end plate 82 is fixed on the second cylinder 20.Again
First stator baffle 501 is pressed on the first base end plate 81, and by the first stator baffle 501 and stretches out the first machine using bolt
The first piston 30 of seat 81 through-hole of end plate connects, and similarly, the second stator baffle 502 is pressed on the second base end plate 82, and make
The second stator baffle 502 is connect with the second piston 40 for stretching out 82 through-hole of the second base end plate with bolt.Then, first is moved
Son 61 is located at the side of base cylinder 80, and the second mover 62 is located to the other side of base cylinder 80.First is moved using bolt
Sub- end plate 604 is connect with one end of mover bracket 601, and the second mover end plate 605 is connect with the other end of mover bracket 601.
The first stator 51 is finally located at 61 outside of the first mover, the second stator 52 is located at 62 outside of the second mover, and use
First stator baffle 501 is connect by bolt with the first base end plate 81, and the second stator baffle 502 and the second base end plate 82 are connected
It connects, and then completes the installation of entire compressor.
Optionally, in order to further increase the stable operation of compressor, the present embodiment is also in the first base end plate 81 and
Multiple balancing springs are provided between one mover end plate 604 and between the second base end plate 82 and the second mover end plate 605
83。
In a kind of possibility implementation of gas lubrication of the present embodiment, as shown in figure 3, first cylinder of the present embodiment
Be provided with multiple air bearing shallow cavities 101 with throttle orifice on the side wall of 10 side wall and the second cylinder 20, base cylinder 80 it is interior
Wall forms runner 102, runner 102 and each air bearing shallow cavity between the side wall of the first cylinder 10 and the side wall of the second cylinder 20 respectively
101 connections.In gas indentation air bearing shallow cavity 101 in runner 102, in the side wall of first piston 30 and the inner wall of the first cylinder 10
Between and second piston 40 side wall and the first cylinder 10 inner wall between form air cushion.
Specifically, the high pressure gas in discharge chamber 103 enters stream as shown in figure 3, the runner 102 is connected to discharge chamber 103
Road 102.It is connected to again due to runner 102 with each air bearing shallow cavity 101, then high pressure gas is pressed into each air bearing shallow cavity 101 from runner 102
In, air cushion is formed on the side wall of first piston 30 and the side wall of second piston 40, can effectively reduce between piston and cylinder
Friction, and then improve the service life of compressor.Meanwhile the lubricating system of the present embodiment, the high pressure gas being discharged using itself
As lubrication gas, the structure and volume of compressor are further simplified, the energy saving of compressor is improved.
The present embodiment compressor shown in Fig. 3 is single-stage compressor, i.e., (first is living for the corresponding compression chamber of first piston 30
Cavity between the bottom and first exhaust valve plate 70 of plug 30), the corresponding compression chamber (bottom for first piston 30 of second piston 40
Cavity between portion and first exhaust valve plate 70).Its structure of the compressor of the structure is simple, can meet most requirement.
Fig. 7 is the two-stage compression schematic diagram for the linear oilless (oil free) compressor that the embodiment of the present invention three provides.As shown in fig. 7,
The first piston 30 and the second piston 40 of the present embodiment include level-one air reservoir 11, the side wall of the first piston 30 and institute
It states and is respectively formed between the inner wall of the first cylinder 10 and the side wall of the second piston 40 and the inner wall of second cylinder 20
One stage of compression chamber 12 is provided with the level-one intake valve being connected to the one stage of compression chamber 12 on the side wall of the one stage of compression chamber 12
14 and level-one exhaust valve 15, the bottom end of the first piston 30 and the first exhaust valve plate 70 and the second piston 40
Bottom end and the second exhaust valve plate 71 between be respectively formed two-stage compression chamber 16, the level-one exhaust valve 15 and the level-one
Air reservoir 11 is connected to, and the breather cheek valve 13 is connected to the level-one air reservoir 11 and the two-stage compression chamber 16 respectively, and described one
Grade intake valve 14 and the level-one exhaust valve 15 are check valve.
Specifically, as shown in figure 5, the symmetrical configuration of first piston 30 and second piston 40, the side wall of first piston 30 with
There is an annular one stage of compression chamber 12, the side wall and the second gas of corresponding second piston 40 between the inner wall of first cylinder 10
Also there is an annular one stage of compression chamber 12 between the inner wall of cylinder 20.Level-one is provided on the side wall of the one stage of compression chamber 12
Intake valve 14 and level-one exhaust valve 15, wherein level-one intake valve 14 is connected to level-one air reservoir 11 and one stage of compression chamber 12 respectively,
Low-pressure gas when the level-one intake valve 14 is opened in air reservoir can enter in one stage of compression chamber 12.Level-one exhaust valve 15 respectively with
Level-one air reservoir 11 is connected to one stage of compression chamber 12, and when level-one exhaust valve 15 is opened, gas in one stage of compression chamber 12 can be into
Enter in level-one air reservoir 11.
The working principle of the split-compressor of the present embodiment is, when first piston 30 calms the anger 40 air-breathing of second piston, the
The movement of each component in one piston 30 are as follows: level-one intake valve 14 is closed, and level-one exhaust valve 15 and breather cheek valve 13 are opened, and one
In gas indentation level-one air reservoir 11 in grade compression chamber 12, the gas in level-one air reservoir 11 is pressed into second level by breather cheek valve 13
In compression chamber 16, and discharge chamber 103 is pressed into from two-stage compression chamber 16.It is corresponding, the movement of each component in second piston 40 are as follows:
Level-one intake valve 14, level-one exhaust valve 15 and breather cheek valve 13 are opened, and low-pressure gas is inhaled by level-one intake valve 14
In one stage of compression chamber 12, the gas in one stage of compression chamber 12 is inhaled into level-one air reservoir 11 by level-one exhaust valve 15, level-one gas
Gas is inhaled into two-stage compression chamber 16 by breather cheek valve 13 in library 11, and then completes air-breathing.When 30 air-breathing of first piston
When second piston 40 is calmed the anger, working principle is contrary to the above, referring to foregoing description.
Split-compressor described in the present embodiment can be applied to the occasion of big compression ratio, and then improve making for compressor
Use range.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than to it
Limitation；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, either to part of or
All technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution this hair
The range of bright embodiment technical solution.
Claims (4)
1. a kind of linear oilless (oil free) compressor characterized by comprising the first cylinder, with the first cylinder face setting
Second cylinder, first piston and second piston；The first piston is set in first cylinder, and with first cylinder
Gas lubrication, the second piston are set in second cylinder, and are lubricated with second cylinder gas；
The first piston moves in the same direction with the second piston, and when the first piston air-breathing, the second piston is calmed the anger,
The second piston air-breathing when the first piston is calmed the anger；
First exhaust valve plate and second exhaust valve plate, the first row are provided between first cylinder and second cylinder
Valve plate is connect with the second exhaust valve plate by compressed spring, pressure of the first exhaust valve plate in the compressed spring
Under be pressed on the exhaust outlet of first cylinder, the second exhaust valve plate is pressed on institute under the pressure of the compressed spring
On the exhaust outlet for stating the second cylinder；
The compressor further includes base cylinder, is provided with gas vent in the middle part of the side wall of the base cylinder, first cylinder plugs
In one end of the base cylinder, second cylinder is plugged in the other end of the base cylinder, the first exhaust valve plate and institute
State the middle part that second exhaust valve plate is located at the base cylinder, and with the gas vent face, the first exhaust valve plate and described
Second exhaust valve plate forms discharge chamber with the inner wall clearance fit of the base cylinder respectively；
The compressor further includes muffler, and the row being connected to the inner cavity of the muffler is provided on the side wall of the muffler
Tracheae, the muffler are set on the side wall of the base cylinder, and the exhaust pipe is connected to the gas vent face；
Multiple air bearing shallow cavities with throttle orifice are provided on the side wall of the side wall of first cylinder and second cylinder,
The inner wall of the base cylinder forms runner between the side wall of first cylinder and the side wall of second cylinder respectively, described
Runner is connected to the air bearing shallow cavity；
Gas in the runner is pressed into the air bearing shallow cavity, in the side wall and first cylinder of the first piston
Air cushion is formed between wall and between the side wall of the second piston and the inner wall of first cylinder；
The bottom of the first piston and the bottom of the second piston are respectively provided at least one breather cheek valve；
The first piston and the second piston include level-one air reservoir, the side wall of the first piston and first cylinder
Inner wall and the second piston side wall and second cylinder inner wall between be respectively formed one stage of compression chamber, it is described
It is provided with the level-one intake valve and level-one exhaust valve being connected to the one stage of compression chamber on the side wall of one stage of compression chamber, described first
Between the bottom end of piston and the first exhaust valve plate and the bottom end and the second exhaust valve plate of the second piston respectively
Form two-stage compression chamber, the level-one exhaust valve is connected to the level-one air reservoir, the breather cheek valve respectively with the level-one
Air reservoir is connected to the two-stage compression chamber, and the level-one intake valve and the level-one exhaust valve are check valve；
When the first piston calms the anger the second piston air-breathing, the level-one intake valve of the first piston is closed, and described the
The level-one exhaust valve and breather cheek valve of one piston are opened, and the first piston is by the gas pressure in corresponding one stage of compression chamber
Enter in the level-one air reservoir of the first piston, the breather cheek valve pressure that the gas in the level-one air reservoir passes through the first piston
Enter in the two-stage compression chamber of the first piston, and is pressed into the discharge chamber from the two-stage compression chamber of the first piston；
Corresponding, level-one intake valve, level-one exhaust valve and the breather cheek valve of the second piston are opened, and low-pressure gas passes through described
The level-one intake valve of second piston is drawn into the one stage of compression chamber of the second piston, and the gas in the one stage of compression chamber is logical
The level-one exhaust valve for crossing the second piston sucks in the level-one air reservoir of the second piston, and gas passes through in the level-one air reservoir
The breather cheek valve of the second piston sucks in the two-stage compression chamber of the second piston.
2. compressor according to claim 1, which is characterized in that the compressor further includes stator module and mover group
Part, the mover assembly are located at the outside of first cylinder and second cylinder respectively, and the stator module is located at
The outside of the mover assembly；
The stator module and the mover assembly drive the first piston to move reciprocatingly with the second piston.
3. compressor according to claim 2, which is characterized in that the mover assembly includes symmetrically arranged first mover
With the second mover, the stator module includes symmetrically arranged first stator and the second stator；
First mover is located at the outer wall side of first cylinder and second cylinder, second mover point respectively
It is not located at the outer wall other side of first cylinder and second cylinder, first stator is located at first mover
Outside, second stator is located at the outside of second mover.
4. compressor according to claim 3, which is characterized in that first stator, second stator, described first
Mover and second mover are semicircular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710407506.8A CN107313925B (en) | 2017-06-02 | 2017-06-02 | Linear oilless (oil free) compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407506.8A CN107313925B (en) | 2017-06-02 | 2017-06-02 | Linear oilless (oil free) compressor |
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| Publication Number | Publication Date |
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| CN107313925A CN107313925A (en) | 2017-11-03 |
| CN107313925B true CN107313925B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710407506.8A Active CN107313925B (en) | 2017-06-02 | 2017-06-02 | Linear oilless (oil free) compressor |
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| JPH04209978A (en) * | 1990-12-07 | 1992-07-31 | Daikin Ind Ltd | Linear motor compressor |
| CN101182837A (en) * | 2007-11-30 | 2008-05-21 | 西安交通大学 | Double-acting free-piston type expansion-compression unit |
| CN103122837A (en) * | 2013-03-07 | 2013-05-29 | 浙江大学 | Linear compressor supported by three kinds of springs |
| CN103629082A (en) * | 2012-08-24 | 2014-03-12 | Lg电子株式会社 | Reciprocating compressor |
| CN104806471A (en) * | 2015-04-30 | 2015-07-29 | 中国电子科技集团公司第十六研究所 | Opposed gas bearing linear compressor |
| CN106382198A (en) * | 2016-11-15 | 2017-02-08 | 深圳市兆业电子科技有限公司 | Permanent magnet linear double-cylinder compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156626B2 (en) * | 2001-10-12 | 2007-01-02 | Lg Electronics Inc. | Double side action type reciprocating compressor |
| US20070286751A1 (en) * | 2006-06-12 | 2007-12-13 | Tecumseh Products Company | Capacity control of a compressor |
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2017
- 2017-06-02 CN CN201710407506.8A patent/CN107313925B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04209978A (en) * | 1990-12-07 | 1992-07-31 | Daikin Ind Ltd | Linear motor compressor |
| CN101182837A (en) * | 2007-11-30 | 2008-05-21 | 西安交通大学 | Double-acting free-piston type expansion-compression unit |
| CN103629082A (en) * | 2012-08-24 | 2014-03-12 | Lg电子株式会社 | Reciprocating compressor |
| CN103122837A (en) * | 2013-03-07 | 2013-05-29 | 浙江大学 | Linear compressor supported by three kinds of springs |
| CN104806471A (en) * | 2015-04-30 | 2015-07-29 | 中国电子科技集团公司第十六研究所 | Opposed gas bearing linear compressor |
| CN106382198A (en) * | 2016-11-15 | 2017-02-08 | 深圳市兆业电子科技有限公司 | Permanent magnet linear double-cylinder compressor |
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|---|---|
| CN107313925A (en) | 2017-11-03 |
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Effective date of registration: 20220816 Address after: 518110 101, floor 1, building A2, silicon valley power automotive electronics Pioneer Park, No. 334, Guiyue Road, Dafu community, Guanlan street, Longhua District, Shenzhen, Guangdong Patentee after: ZHONGKE LIHAN (SHENZHEN) LOW TEMPERATURE TECHNOLOGY CO.,LTD. Address before: Room 301, 3rd Floor, Building 4, Pingshan Private Enterprise Science and Technology Park, Taoyuan Street, Nanshan District, Shenzhen, Guangdong 518055 Patentee before: LIHAN THERMOACOUSTIC TECHNOLOGIES (SHEN ZHEN) Co.,Ltd. |
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