CN209129869U - Air suction port switching device and rotor type compressor - Google Patents
Air suction port switching device and rotor type compressor Download PDFInfo
- Publication number
- CN209129869U CN209129869U CN201821767261.6U CN201821767261U CN209129869U CN 209129869 U CN209129869 U CN 209129869U CN 201821767261 U CN201821767261 U CN 201821767261U CN 209129869 U CN209129869 U CN 209129869U
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- Prior art keywords
- air entry
- compressor
- control system
- switching device
- slide plate
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- 230000033001 locomotion Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract 2
- 230000003434 inspiratory effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model provides an induction port switching device and rotor compressor relates to compressor technical field, has solved the technical problem that the existence of prior art induction port leading edge angle caused the compressor air suction volume to descend. The air suction opening switch device comprises a switch mechanism and a control system which are electrically connected, and the electrification and the outage of the control system are controlled by a sliding sheet of the compressor. The suction port of the compressor cylinder is additionally provided with a switching mechanism which can be controlled by a control system to open and close the suction port, when the exhaust of the compressor is finished, the rotor is positioned at the top end, the tangent point T of the cylinder and the rotor is positioned at the top of the inner wall of the cylinder, the slip sheet is also positioned at the top end, one end of the slip sheet, which is far away from the rotor, triggers the control system to be electrified, and then the suction port of the cylinder is closed, the backflow of gas in the suction cavity is avoided, the suction capacity of the compressor is increased, and.
Description
Technical field
The utility model relates to Compressor Technology fields, compress more particularly, to a kind of air entry switching device and rotator type
Machine.
Background technique
Existing compressor is mainly made of cylinder, crankshaft, roller, slide plate and upper lower flange, roller on the crankshaft with
The outer circle of crank rotation, roller is rolled along cylinder inner wall, the working chamber of a crescent is formed with cylinder, both ends are by upper laxative remedy
Orchid encapsulates, and constitutes the working chamber of compressor, and crescent working chamber is divided into two parts by slide plate, the part communicated with air entry
Referred to as suction chamber, the part communicated with exhaust outlet are known as compression chamber.WithRoller corner is indicated, when roller is in the top position
The point of contact T of cylinder and roller is set to roller corner on cylinder inner wall vertex at this timeDegree, when point of contact T is located at the end of air entry
When endReferred to as air entry leading edge angle a, referring to Fig. 1.There is this air entry leading edge in current rotor compressor
Angle, its presence will cause the gas sucked before compression process starts and flow back to air entry, causes inspiratory capacity to decline, reduces pressure
Contracting machine performance.Fig. 2 dash area indicates the inspiratory capacity of existing rotor compressor.
Utility model content
The purpose of this utility model is to provide a kind of air entry switching device and rotor-type compressors, to solve existing skill
Air entry leading edge angle there is technical issues that cause compressor air suction amount present in art.It is provided by the utility model
Many technical effects elaboration as detailed below that optimal technical scheme in many technical solutions can be generated.
To achieve the above object, the utility model provides following technical scheme:
A kind of air entry switching device provided by the utility model, comprising:
Switching mechanism can open and close the air entry of compressor；
Control system is electrically connected with the switching mechanism, for controlling the switching mechanism, and the control system
It is powered and powers off and controlled by the slide plate of compressor；It is logical that the control system is triggered when the vane motion rises to stroke top
It is electrically turn off the air entry, the control system power-off is beaten after moving past air entry leading edge angle a respective heights under the slide plate
Open the air entry.
Optionally, the control system includes:
Trigger circuit is electrically connected with the switching mechanism, controls the movement of the switching mechanism；
Contact switch is located in the trigger circuit, and the closing or opening of the contact switch controls the triggering electricity
The closing or opening on road；And the contact switch is set to the top of the vane motion stroke, described in slide plate arrival
The contact switch closure, contact switch after moving past air entry leading edge angle a respective heights under the slide plate when top
It disconnects.
Optionally, the contact switch is relay.
Optionally, the relay is the time relay, electromagnetic relay or limit switch.
Optionally, the contact switch is mechanical trigger-type.
Optionally, one end of slide plate contact rotor to compresser cylinder radial distance h > R (1-cosa) when control
System cut-off, wherein R is cylinder radius, and a is air entry leading edge angle.
Optionally, the switching mechanism includes driver, and the driver is electrically connected with the control system.
Optionally, the switching mechanism further includes electrically operated gate, and the driver and the electrically operated gate are sequentially connected.
Optionally, the size of the electrically operated gate is adapted with the size of the air entry.
A kind of rotor-type compressor provided by the utility model, including slide plate and any of the above air entry switching device.
A kind of air entry switching device and rotor-type compressor provided by the utility model, pass through the movement of compressor sliding blade
Automatically control the energization and power-off of control system, and then the movement of control switch mechanism closes or opens the air-breathing of compressor
Mouthful, control system is powered just when rotating rotor in air entry leading edge angular region, and switching mechanism closes air entry, avoids
Compressor flows back in the gas for starting to suck when compression to air entry, improves inspiratory capacity, compressor performance is improved.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of prior art compressor, and arrow indicates airflow direction in figure；
Fig. 2 is the structural schematic diagram of prior art compressor, and dash area indicates inspiratory capacity in figure；
Fig. 3 is the knot of a kind of air entry switching device that specific embodiment of the present invention provides and rotor-type compressor
Structure schematic diagram；
Fig. 4 is a kind of structural schematic diagram for rotor-type compressor that specific embodiment of the present invention provides, in figure
Dash area indicates inspiratory capacity；
Fig. 5 gives the structural schematic diagram after slide plate and relay disengaging.
1, cylinder in figure；2, roller；3, slide plate；4, relay.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
As shown in Figures 3 to 5, the utility model provides a kind of air entry switching device, comprising:
Switching mechanism can open and close the air entry of compressor；
Control system is electrically connected with switching mechanism, be used for control switch mechanism, and control system energization and power-off by
The slide plate 3 of compressor controls；When the movement of slide plate 3 rises to stroke top, Triggering Control System, which is powered, closes air entry, works as cunning
Air entry is opened in control system power-off after moving past air entry leading edge angle a respective heights under piece 3.
Increase the switch that air entry opening and closing can be controlled by control system in the air entry of compresser cylinder 1
Mechanism, rotor is in the top position at the end of compressor air-discharging, the point of contact T of cylinder 1 and rotor on 1 inner wall vertex of cylinder,
Slide plate 3 is also at topmost, and slide plate 3 is powered far from one end Triggering Control System of rotor, and then closes 1 air entry of cylinder, is kept away
Exempt from the gas backstreaming in suction chamber, increases compressor air suction amount, to promote the performance of compressor.Increased inspiratory capacity is referring to figure
4。
Optionally embodiment, control system include:
Trigger circuit is electrically connected, the movement of control switch mechanism with switching mechanism；
Contact switch is located in trigger circuit, the closure or disconnected of the closing or opening control trigger circuit of contact switch
It opens；And contact switch is set to the top of 3 movement travel of slide plate, when slide plate 3 outreaches, contact switch is closed, when slide plate 3
Under move past 3 top of slide plate and contact switch after a respective heights of air entry leading edge angle and be detached from, contact switch disconnects.
The open and close of trigger circuit, and then control switch mechanism are automatically controlled by the movement of compressor sliding blade 3
It acts to close or open the air entry of compressor, control system is proper when rotating rotor within the scope of air entry leading edge angle a
Good to be powered, switching mechanism closes air entry, avoids compressor from flowing back in the gas for starting to suck when compression to air entry, improves
Inspiratory capacity, compressor performance are improved.
Contact switch in trigger circuit is set to the top of 3 movement travel of slide plate, touching when slide plate 3 moves to top
Point closes the switch.
Optionally embodiment, contact switch are relay 4.
Relay 4 is used as contact switch, and the on-off of trigger circuit is realized by the motion triggers relay 4 of slide plate 3.
Optionally embodiment, relay 4 are the time relay, electromagnetic relay or limit switch.
Wherein electromagnetic relay includes low-voltage control circuit and high-pressure work circuit, and slide plate 3 is control low-voltage control circuit
Folding.
Optionally embodiment, the slide plate 3 contact one end of rotor to radial distance h > R of compresser cylinder 1
System cut-off is controlled when (1-cosa), wherein R is 1 radius of cylinder, and a is air entry leading edge angle.
As h=R (1-cosa), rotor is located exactly at air entry leading edge angle, has crossed air-breathing behind air entry leading edge angle
Mouth is blocked by roller, will not generate gas backstreaming again, air entry is without closing.
Optionally embodiment, contact switch are mechanical trigger-type.
Contact switch is mechanical trigger-type, convenient for being directly controlled by slide plate 3.
Optionally embodiment, switching mechanism include driver, and driver is electrically connected to the control system.
Switching mechanism includes the driver being electrically connected to the control system, convenient for automatically controlling.
Optionally embodiment, switching mechanism further include electrically operated gate, and driver and electrically operated gate are sequentially connected.
The transmission connection of the output shaft of electrically operated gate and driver, can be realized electrically operated gate quick closedown and unlatching, and reaction is fast.
Optionally embodiment, the size of electrically operated gate are adapted with the size of air entry.
The utility model provides a kind of rotor-type compressor, including slide plate 3 and any of the above air entry switching device.
Slide plate 3 is mounted in the sliding vane groove of cylinder 1, and the bottom end of slide plate 3 is contacted with the roller 2 as rotor, with roller 2
Reciprocating in the rolling of 1 inner wall of cylinder, at the end of compressor air-discharging, roller 2 is in the top of 1 inner wall of cylinder, sliding
Piece 3 is also at the top position, installs relay 4 by corresponding to 3 the top position of slide plate in 1 sliding vane groove of cylinder, at this time slide plate 3
Trigger relay 4 acts, and the signal for conveying exhaust to terminate is acted to relay 4, relay 4, and control air entry is in switching on and shutting down
Structure closes air entry, and gas flows back along air entry when preventing roller 2 from continuing to rotate, and air-breathing aperture leading edge is thus not present
Angle increases inspiratory capacity.It (is i.e. inhaled in Fig. 1 and Fig. 2 when the point of contact of roller 2 and 1 inner wall of cylinder turns to air entry leading edge position
The position of gas opening leading edge angle a), slide plate 3 moves downward, and 3 top of slide plate and relay 4 are detached from, and relay 4 resets, setting
Switching mechanism at air entry is opened, so that gas can enter suction chamber from air entry, carries out the breathing process in next period.
Increase a relay 4 at the top of rotor compressor sliding vane groove, increasing by one in 1 air entry of cylinder can be by relay
The control of device 4 opens and closes the switching mechanism of air entry, no longer there is air-breathing aperture leading edge angle, inspiratory capacity is promoted, to mention
The performance of high compressor.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of air entry switching device characterized by comprising
Switching mechanism can open and close the air entry of compressor；
Control system is electrically connected with the switching mechanism, for controlling the switching mechanism, and the energization of the control system
It is controlled with power-off by the slide plate of compressor；The control system energization is triggered when the vane motion rises to stroke top to close
The air entry is closed, institute is opened in the control system power-off after moving past air entry leading edge angle a respective heights under the slide plate
State air entry.
2. air entry switching device according to claim 1, which is characterized in that the control system includes:
Trigger circuit is electrically connected with the switching mechanism, controls the movement of the switching mechanism；
Contact switch is located in the trigger circuit, and the closing or opening of the contact switch controls the trigger circuit
Closing or opening；And the contact switch is set to the top of the vane motion stroke, when the slide plate reaches the top
Shi Suoshu contact switch closure, the contact switch disconnects after moving past air entry leading edge angle a respective heights under the slide plate.
3. air entry switching device according to claim 2, which is characterized in that the contact switch is relay.
4. air entry switching device according to claim 3, which is characterized in that the relay is the time relay, electricity
Magnetic relay or limit switch.
5. according to the described in any item air entry switching devices of claim 2-4, which is characterized in that the contact switch is machinery
Trigger-type.
6. air entry switching device according to claim 1, which is characterized in that one end of the slide plate contact rotor to pressure
System cut-off is controlled when radial distance h > R (1-cosa) of contracting machine cylinder, wherein R is cylinder radius, and a is air entry leading edge
Angle.
7. air entry switching device according to claim 1, which is characterized in that the switching mechanism includes driver, institute
Driver is stated to be electrically connected with the control system.
8. air entry switching device according to claim 7, which is characterized in that the switching mechanism further includes electrically operated gate,
The driver and the electrically operated gate are sequentially connected.
9. air entry switching device according to claim 8, which is characterized in that the size of the electrically operated gate and the air-breathing
The size of mouth is adapted.
10. a kind of rotor-type compressor, which is characterized in that including any air entry switch of slide plate and claim 1-9
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767261.6U CN209129869U (en) | 2018-10-29 | 2018-10-29 | Air suction port switching device and rotor type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767261.6U CN209129869U (en) | 2018-10-29 | 2018-10-29 | Air suction port switching device and rotor type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209129869U true CN209129869U (en) | 2019-07-19 |
Family
ID=67233215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821767261.6U Withdrawn - After Issue CN209129869U (en) | 2018-10-29 | 2018-10-29 | Air suction port switching device and rotor type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209129869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185159A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Air suction port switching device and rotor type compressor |
-
2018
- 2018-10-29 CN CN201821767261.6U patent/CN209129869U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185159A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Air suction port switching device and rotor type compressor |
| CN109185159B (en) * | 2018-10-29 | 2024-07-23 | 珠海凌达压缩机有限公司 | Air suction port switching device and rotor type compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190719 Effective date of abandoning: 20240723 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190719 Effective date of abandoning: 20240723 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |