CN205805905U - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN205805905U CN205805905U CN201620692938.9U CN201620692938U CN205805905U CN 205805905 U CN205805905 U CN 205805905U CN 201620692938 U CN201620692938 U CN 201620692938U CN 205805905 U CN205805905 U CN 205805905U
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- CN
- China
- Prior art keywords
- air valve
- pressure
- air
- guide channel
- screw compressor
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- 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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Abstract
This utility model provides a kind of screw compressor, including backpressure adjusting mechanism, this backpressure adjusting mechanism includes air guide channel, gas port, air valve is installed passage and air valve, rotating shaft or air valve and is provided with air valve by-pass prot, the blocking-up of air guide channel and air valve installation passage with connect, by air guide channel and air valve, the connectivity part of passage and the laminating of air valve it is installed and separates realization, thus pressing the blocking-up of back pressure cavity and low pressure chamber in realizing and connect.Above-mentioned screw compressor, by arranging backpressure adjusting mechanism, the pressure making middle pressure back pressure cavity remains within the specific limits, in realization, pressure stablizes, thus reach to balance pressure, avoid between orbiter and support, producing the biggest frictional force such that it is able to ensure serviceability and the service life of screw compressor.
Description
Technical field
This utility model relates to compressor, particularly relates to screw compressor.
Background technology
Scroll compressor is to be mutually twisted by the dynamic and static scroll plate of two digamma function equation lines to form.In air-breathing, pressure
Contracting, aerofluxus work process in, fixed scroll is fixed in frame, and orbiter is driven by eccentric shaft and by anti-autobiography mechanism system
About, around fixed scroll basic circle center, the Plane Rotation of very minor radius is made.Gas is sucked outside fixed scroll by air filtering core
Enclosing, along with the rotation of eccentric shaft, gas is progressively compressed in orbiter bites several crescent compression chambers that conjunction is formed,
Then discharged continuously by the axial hole of fixed scroll central module.
The above-mentioned unique design of screw compressor so that it is be widely used in industry, agricultural, traffic fortune suitable, medical apparatus and instruments, food
Industry and other compressed-air actuated occasions of needs such as product decoration and weaving.
But traditional screw compressor, orbiter and fixed scroll are when compressed gas, easily produce and be allowed to separate
Axial force, make between orbiter and supporting member, to produce the biggest frictional force, have a strong impact on the serviceability of screw compressor
And service life.
Utility model content
Based on this, it is necessary to produce the biggest friction between traditional screw compressor orbiter and supporting member
Power, has a strong impact on serviceability and problem in service life, it is provided that a kind of screw compressor, by arranging backpressure adjusting mechanism, with
Discharge is pressed the gas that Pressure in Back-pressure Cavity is too high, it is achieved stablizing of middle pressure, thus reach to balance pressure, it is to avoid orbiter and machine
The biggest frictional force is produced such that it is able to ensure serviceability and the service life of screw compressor between Zuo.
A kind of screw compressor, is located at the lid of shell one end opening part including housing, envelope and is arranged in housing
Fixed scroll, orbiter, wear-resistant pad, cross slip-ring, support, rotating shaft and motor, described orbiter, wear-resistant pad and support enclose
Closing and press back pressure cavity, described support and housing to enclose formation low pressure chamber in being formed, described screw compressor also includes backpressure regulation machine
Structure, described backpressure adjusting mechanism includes the air guide channel being arranged in described rotating shaft, in being arranged on described rotating shaft and leads with described
The air valve of gas channel connection is installed passage and is arranged on the air valve in described air valve installation passage, and described rotating shaft or air valve set
Having and make described low pressure chamber and described air valve install the air valve by-pass prot of channel connection, described air guide channel installs passage with air valve
Block and connect, by the connectivity part of described air guide channel and air valve installation passage and the laminating of air valve with separate realization, thus
Realization is pressed the blocking-up of back pressure cavity and low pressure chamber and connects.
Wherein in an embodiment, when medium pressure back pressure cavity pressure more than set pressure time, described connectivity part with
Air valve separates, and medium pressure back pressure cavity passes sequentially through gas port, air guide channel, air valve installation passage and air valve by-pass prot with described
Low pressure chamber connects；
When the pressure of medium pressure back pressure cavity is less than when setting pressure, and described connectivity part is fitted with air valve, leads described in blocking-up
Gas passage installs the connection of passage with air valve.
Wherein in an embodiment, described air valve includes fixed block, elastic component and piston, one end of described elastic component with
Fixed block is connected, and described piston is pushed to the connectivity part of air guide channel and air valve installation passage, described rotating shaft or air valve by the other end
Fixed block be provided with the air valve by-pass prot making described low pressure chamber and described air valve install channel connection；
When the pressure of medium pressure back pressure cavity is more than setting pressure, described piston compression elastic piece, make described connectivity part
Separating with piston, medium pressure back pressure cavity passes sequentially through gas port, air guide channel, air valve installation passage and air valve by-pass prot and institute
State low pressure chamber connection；
When the pressure of medium pressure back pressure cavity is less than when setting pressure, and described elastic component holds out against piston, makes described connectivity part
Fit with piston, block the connection of described air guide channel and air valve installation passage.
Wherein in an embodiment, described elastic component is spring, and described piston is to fit with described connectivity part
Spheroid or cylinder.
Wherein in an embodiment, the direction of described air guide channel is consistent with the axis direction of described rotating shaft, described gas
Valve installation passage is arranged on the prolongation line length of air guide channel or is the position of 90 ° with air guide channel.
Wherein in an embodiment, described housing is provided with air inlet, and described lid is provided with air vent, described air inlet
Mouth connects with described low pressure chamber, and described fixed scroll is one end of close opening part in being fixed on described housing by described lid,
Described fixed scroll and lid enclose formation high pressure chest, and described air vent connects with described high pressure chest, described orbiter landing
On described cross slip-ring, described cross garland is arranged on described support, described wear-resistant pad be arranged on described orbiter with
On the contact surface of described support, described fixed scroll is mutually bitten conjunction and is formed compression chamber with orbiter, and described fixed scroll sets
Having pore, described compression chamber is connected with high pressure chest by described pore；Described fixed scroll is provided with back pressure inlet channel, described
Wear-resistant pad is provided with air slot, and described high pressure chest passes sequentially through described back pressure inlet channel and air slot and medium pressure back pressure cavity
Connection.
Wherein in an embodiment, described cross slip-ring includes ring and two ends being symmetricly set on ring, described
Being arranged with two grooves on support, two ends of described cross slip-ring are respectively erected in two grooves of described support,
Described cross slip-ring is reciprocating along the connecting line of two grooves on described support.
Wherein in an embodiment, one end of described rotating shaft is connected away from one end of opening part with described housing, another
End is connected with described orbiter by eccentric shaft, and described motor ring is located at described rotating shaft one end away from orbiter.
Wherein in an embodiment, described gas port be provided with one, two or more.
Wherein in an embodiment, described gas port is circular hole, square hole, bar hole or funnel-shaped hole.
Above-mentioned screw compressor, by arranging backpressure adjusting mechanism, makes the pressure of middle pressure back pressure cavity remain at necessarily
In the range of, it is achieved stablizing of middle pressure, thus reach to balance pressure, it is to avoid produce the biggest friction between orbiter and support
Power such that it is able to ensure serviceability and the service life of screw compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the screw compressor of an embodiment；
Fig. 2 is the detonation configuration schematic diagram of orbiter, wear-resistant pad, cross slip-ring and support in Fig. 1；
Fig. 3 is the detonation configuration schematic diagram of backpressure adjusting mechanism in Fig. 1.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is more fully retouched
State.Accompanying drawing gives first-selected embodiment of the present utility model.But, this utility model can come real in many different forms
Existing, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make public affairs of the present utility model
Open content more thorough comprehensively.
It should be noted that when element be referred to as " setting " at another element, it can be direct at another element
Go up or element placed in the middle can also be there is.When an element is considered as " to be connected " with another element, and it can be direct
It is connected to another element, or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in territory is generally understood that is identical.At term used in the description of the present utility model it is simply herein
The purpose of specific embodiment is described, it is not intended that in limiting this utility model.
Refer to Fig. 1 ~ 3, be the screw compressor of an embodiment, be located at housing 10 one end open including housing 10, envelope
The lid 20 at place and the fixed scroll 30 being arranged in housing 10, orbiter 40, wear-resistant pad 50, cross slip-ring 60, support
70, rotating shaft 80 and motor 90.
Wherein, orbiter 40, wear-resistant pad 50 and support 70 enclose pressure back pressure cavity 740 in formation.
Support 70 and housing 10 enclose formation low pressure chamber 710.
Above-mentioned screw compressor also includes backpressure adjusting mechanism.
This backpressure adjusting mechanism includes the air guide channel 101 being arranged in rotating shaft 80, is arranged in rotating shaft 80 and makes middle pressure
The gas port 102 that back pressure cavity 740 connects with air guide channel 101, the air valve in being arranged on rotating shaft 80 and connected with air guide channel 101
Passage 103 is installed and is arranged on the air valve in air valve installation passage 103.
Wherein, rotating shaft 80 or air valve are provided with and make low pressure chamber 710 install, with air valve, the air valve by-pass prot that passage 103 connects
107。
In the present embodiment, the direction of air guide channel 101 is consistent with the axis direction of rotating shaft 80, and air valve installs passage
On 103 extended lines being arranged on air guide channel 101.
Be appreciated that in other embodiments, air valve install passage 103 can also be arranged on air guide channel 101 in
The position of 90 °.
Air guide channel 101 and air valve are installed the blocking-up of passage 103 and are connected, and are pacified with air valve by above-mentioned air guide channel 101
The laminating of connectivity part and the air valve of dress passage 103 with separate realization, thus in realizing, press the resistance of back pressure cavity 740 and low pressure chamber 710
Break and connect.
Concrete, the pressure of central pressure back pressure cavity 740 is more than when setting pressure, and connectivity part separates with air valve, air guide channel
101 install passage 103 with air valve connects, and middle pressure back pressure cavity 740 passes sequentially through gas port 102, air guide channel 101, air valve installation
Passage 103 connects with low pressure chamber 710 with air valve by-pass prot 107.
When the pressure of central pressure back pressure cavity 740 is less than setting pressure, connectivity part and air valve laminating, block air guide channel 101
With the connection that air valve installs passage 103, thus in blocking, press the connection of back pressure cavity 740 and low pressure chamber 710.
In the present embodiment, above-mentioned air valve includes fixed block 104, elastic component 105 and piston 106.The one of elastic component 105
End is connected with fixed block 104, and piston 106 is pushed to the connectivity part of air guide channel 101 and air valve installation passage 103 by the other end.
Concrete, air valve by-pass prot 107 can be arranged in rotating shaft 80 or on the fixed block 104 of air valve, as long as can
With air valve, low pressure chamber 710 is installed passage 103 connect.
When the pressure of central pressure back pressure cavity 740 is more than setting pressure, piston 106 compression elastic piece 105, make connectivity part and work
Plug 106 separation, air guide channel 101 connects with air valve installation passage 103, and middle pressure back pressure cavity 740 passes sequentially through gas port 102, leads
Gas passage 101, air valve are installed passage 103 and are connected with low pressure chamber 710 with air valve by-pass prot 107.
The pressure of central pressure back pressure cavity 740 is less than when setting pressure, and elastic component 105 holds out against piston 106, makes connectivity part and work
Fill in 106 portable boxes, block the connection of air guide channel 101 and air valve installation passage 103, thus in blocking, press back pressure cavity 740 and low pressure
The connection in chamber 710.
In the present embodiment, above-mentioned elastic component 105 is spring, piston 106 be the spheroid that can fit with connectivity part or
Cylinder.
Be appreciated that gas port 102 can be provided with one, two or more, as long as being capable of middle pressure back pressure cavity
740 connect with air guide channel 101.
Concrete, gas port 102 can be circular hole, square hole, bar hole or funnel-shaped hole.
In the present embodiment, housing 10 is provided with air inlet 12.Lid 20 is provided with air vent 22.
Air inlet 12 connects with low pressure chamber 710.
Fixed scroll 30 is one end of close opening part in being fixed on housing 10 by lid 20.Fixed scroll 30 and lid 20
Enclose formation high pressure chest 320.Air vent 22 connects with high pressure chest 320.
Orbiter 40 is seated on cross slip-ring 60, and cross slip-ring 60 is arranged on support 70, and wear-resistant pad 50 is arranged on
On the contact surface of orbiter 40 and support 70.
Orbiter 40 is mutually bitten conjunction and is formed compression chamber 430 with fixed scroll 30.Fixed scroll 30 is provided with pore 32.Pressure
Contracting chamber 430 is connected with high pressure chest 320 by pore 32.
Fixed scroll 30 is provided with back pressure inlet channel 34.Wear-resistant pad 50 is provided with air slot 52.High pressure chest 320 leads to successively
Cross back pressure inlet channel 34 to connect with middle pressure back pressure cavity 740 with air slot 52.
Concrete, in the present embodiment, cross slip-ring 60 includes ring 62 and two ends being symmetricly set on ring 62
64.Two grooves 74 it are arranged with on support 70.Two ends 64 of cross slip-ring 60 be respectively erected in support 70 two are recessed
In groove 74.Cross slip-ring 60 is reciprocating along the connecting line of two grooves 74 on support 70.
One end of rotating shaft 90 is connected away from one end of opening part with housing 10, and the other end is by eccentric shaft and orbiter 40
It is connected.Motor 80 ring is located at this rotating shaft 90 one end away from orbiter 40.
Above-mentioned screw compressor, gas enters low pressure chamber 710 from air inlet 12, after entering back into compression chamber 430 compression, passes through
Pore 32 enters high pressure chest 320.Portion gas in high pressure chest 320 passes sequentially through back pressure inlet channel 34 and air slot 52 enters
Middle pressure back pressure cavity 740, when the pressure of central pressure back pressure cavity 740 is more than setting pressure, piston 106 compression elastic piece 105, make inducing QI
The connectivity part that passage 101 installs passage 103 with air valve separates with piston 106, makes middle pressure back pressure cavity 740 pass sequentially through gas port
102, air guide channel 101, air valve are installed passage 103 and are connected with low pressure chamber 710 with air valve by-pass prot 107, make middle pressure back pressure cavity 740
Pressure reduce；The pressure of central pressure back pressure cavity 740 is less than when setting pressure, and elastic component 105 holds out against piston 106, makes inducing QI lead to
Road 101 and air valve are installed the connectivity part of passage 103 and are fitted with piston 106, block air guide channel 101 and install passage 103 with air valve
Connection, thus in blocking, press the connection of back pressure cavity 740 and low pressure chamber 710.
Above-mentioned backpressure adjusting mechanism, makes the pressure of middle pressure back pressure cavity 740 remain within the specific limits, though high pressure chest
The pressure of 320 quickly raises, and therefore the pressure of middle pressure back pressure cavity 740 also will not occur large change, improves in bad working environments
The running status of lower compressor, reduces the friction between orbiter 40 and support 70, it is ensured that the use of whole screw compressor
Performance and used life.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, common for this area
For technical staff, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a screw compressor, including housing, envelope be located at the lid of shell one end opening part and be arranged in housing quiet
Scroll plate, orbiter, wear-resistant pad, cross slip-ring, support, rotating shaft and motor, described orbiter, wear-resistant pad and support enclose
Pressing back pressure cavity in formation, described support and housing enclose formation low pressure chamber, it is characterised in that described screw compressor also includes the back of the body
Pressure governor motion, described backpressure adjusting mechanism includes the air guide channel being arranged in described rotating shaft, be arranged in described rotating shaft and
The gas port making medium pressure back pressure cavity connect with described air guide channel, connects in being arranged on described rotating shaft and with described air guide channel
Logical air valve is installed passage and is arranged on described air valve and installs the air valve in passage, described rotating shaft or air valve be provided with make described
Low pressure chamber and described air valve install the air valve by-pass prot of channel connection, and described air guide channel and air valve install blocking-up and the company of passage
Logical, by described air guide channel, the connectivity part of passage and the laminating of air valve it is installed with air valve and separates realization, thus pressing in realizing
The blocking-up of back pressure cavity and low pressure chamber with connect.
Screw compressor the most according to claim 1, it is characterised in that when the pressure of medium pressure back pressure cavity is more than setting
During pressure, described connectivity part separates with air valve, and medium pressure back pressure cavity passes sequentially through gas port, air guide channel, air valve are installed logical
Road connects with described low pressure chamber with air valve by-pass prot；
When the pressure of medium pressure back pressure cavity is less than when setting pressure, and described connectivity part is fitted with air valve, blocks described inducing QI and leads to
The connection of passage is installed with air valve in road.
Screw compressor the most according to claim 2, it is characterised in that described air valve includes fixed block, elastic component and work
Plug, one end of described elastic component is connected with fixed block, and described piston is pushed to air guide channel and installed passage with air valve by the other end
Connectivity part, the fixed block of described rotating shaft or air valve is provided with and makes described low pressure chamber install by the air valve of channel connection with described air valve
Through hole；
When the pressure of medium pressure back pressure cavity is more than setting pressure, described piston compression elastic piece, make described connectivity part and work
Plug separates, and medium pressure back pressure cavity passes sequentially through gas port, air guide channel, air valve installs passage and air valve by-pass prot is low with described
The connection of pressure chamber；
When the pressure of medium pressure back pressure cavity is less than when setting pressure, and described elastic component holds out against piston, makes described connectivity part and work
Plug laminating, blocks the connection of described air guide channel and air valve installation passage.
Screw compressor the most according to claim 3, it is characterised in that described elastic component is spring, described piston is energy
The spheroid fitted with described connectivity part or cylinder.
Screw compressor the most according to claim 1, it is characterised in that the direction of described air guide channel and described rotating shaft
Axis direction is consistent, and described air valve installation passage is arranged on the extended line of air guide channel or is the position of 90 ° with air guide channel
Put.
Screw compressor the most according to claim 1, it is characterised in that described housing is provided with air inlet, described lid
Being provided with air vent, described air inlet connects with described low pressure chamber, and described fixed scroll is fixed on described shell by described lid
Internal one end near opening part, described fixed scroll and lid enclose formation high pressure chest, described air vent and described high pressure chest
Connection, described orbiter is seated on described cross slip-ring, and described cross slip-ring is arranged on described support, described wear-resistant pad
Being arranged on the contact surface of described orbiter and described support, described fixed scroll is mutually bitten conjunction and is formed compression with orbiter
Chamber, described fixed scroll is provided with pore, and described compression chamber is connected with high pressure chest by described pore；Set on described fixed scroll
Having back pressure inlet channel, described wear-resistant pad to be provided with air slot, described high pressure chest passes sequentially through described back pressure inlet channel and leads
Air drain connects with medium pressure back pressure cavity.
Screw compressor the most according to claim 1, it is characterised in that described cross slip-ring includes ring and is symmetricly set on
Two ends on ring, described support is arranged with two grooves, and two ends of described cross slip-ring are respectively erected in institute
Stating in two grooves of support, described cross slip-ring is reciprocating along the connecting line of two grooves on described support.
Screw compressor the most according to claim 1, it is characterised in that one end of described rotating shaft keeps away with described housing
One end at Kou is connected, and the other end is connected with described orbiter by eccentric shaft, described motor ring be located at described rotating shaft away from
One end of orbiter.
Screw compressor the most according to claim 1 and 2, it is characterised in that described gas port be provided with one, two or
Person is multiple.
Screw compressor the most according to claim 1 and 2, it is characterised in that described gas port is circular hole, square hole, bar shaped
Hole or funnel-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692938.9U CN205805905U (en) | 2016-07-05 | 2016-07-05 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692938.9U CN205805905U (en) | 2016-07-05 | 2016-07-05 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805905U true CN205805905U (en) | 2016-12-14 |
Family
ID=58140880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620692938.9U Expired - Fee Related CN205805905U (en) | 2016-07-05 | 2016-07-05 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014978A (en) * | 2016-07-05 | 2016-10-12 | 湖南贝特新能源科技有限公司 | Scroll compressor |
-
2016
- 2016-07-05 CN CN201620692938.9U patent/CN205805905U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014978A (en) * | 2016-07-05 | 2016-10-12 | 湖南贝特新能源科技有限公司 | Scroll compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20210705 |