CN209414172U - A kind of oil-leakage-prevention screw air compressor - Google Patents
A kind of oil-leakage-prevention screw air compressor Download PDFInfo
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- CN209414172U CN209414172U CN201822212455.6U CN201822212455U CN209414172U CN 209414172 U CN209414172 U CN 209414172U CN 201822212455 U CN201822212455 U CN 201822212455U CN 209414172 U CN209414172 U CN 209414172U
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Abstract
The utility model belongs to air compressor technical field, in particular a kind of oil-leakage-prevention screw air compressor, including air compressor ontology, the air compressor is set inside the body screw rod, the side wall of air compressor ontology is run through in one end of the screw rod, and the side wall that the outside of the screw rod is located at air compressor ontology is connected with seal disc by connection component；There are two seal assemblies for the screw rod outer surface socket of equipment, sealing shroud and extension baffle ring inside seal assembly are closely fitted in the outer wall of arch groove by contractile ring, vacuum generator makes to form low-pressure area between seal assembly and screw rod in the process of running, so that extending the contact of baffle ring and contractile ring with arch groove more closely, the gas of air compressor body exterior is effectively avoided to enter groove；Auxiliary connection lantern ring side seal assembly by it is above-mentioned it is same in a manner of the oil of air compressor body interior is blocked, reduce oil spill-out.
Description
Technical field
The utility model belongs to air compressor technical field, and in particular to a kind of oil-leakage-prevention screw air compressor.
Background technique
Helical-lobe compressor is that a kind of positive displacement gas compression that swept volume makees rotary motion is mechanical.The compression of gas relies on
The variation of volume is realized, and the variation of volume is reached in casing as rotary motion by a pair of of rotor of compressor
It arrives.Screw air compressor essential structure is in the body of compressor, and parallel is configured with a pair of intermeshing helical rotors,
Usually the rotor outside pitch circle with double wedge, referred to as male rotor or positive screw rod.The rotor in pitch circle with concave tooth, referred to as yin turns
Son or female screw, general male rotor are connect with prime mover, drive last a pair of bearings on female rotor rotation rotor by male rotor
It realizes axially position, and bears the axial force in compressor.
Current compressor still exposes some problems in use and needs to improve, previous air screw compression
The main shaft seal of machine host generally uses outside framework oil seal or mechanical seal, but these sealings are all contact seals, exists certain
Power consumption.And contact seal quick abrasion needs periodically to replace oil sealing, and when replacing oil sealing, risk is big, at high cost；
China is 208203571 U of CN in the grant number of authorization on December 07th, 2018 at present, and the entitled one kind of patent is used for air screw
The utility model patent of the axle sealing structure of compressor host, used improved procedure are to increase vacuum generator, are reduced
The leakage rate of oil, but using between its groove of such mode and oil groove has biggish gap, will lead to gas leakage, is sucked by vacuum meeting
It also results in the impurity in outside air and enters oil groove, effect is still undesirable during vacuum suction, for current air
The problem exposed in compressor use process, it is necessary to screw sealing structure be improved and be optimized again.
Utility model content
To solve the above-mentioned problems in the prior art, the utility model provides a kind of oil-leakage-prevention air screw pressure
The characteristics of contracting machine has and carries out secondary seal to oil leak region, reduces oil leak amount.
To achieve the above object, the utility model provides the following technical solutions: a kind of oil-leakage-prevention screw air compressor,
Including air compressor ontology, the air compressor is set inside the body screw rod, and air pressure is run through in one end of the screw rod
The side wall of contracting machine ontology, the side wall that the outside of the screw rod is located at air compressor ontology are connected with sealing by connection component
Disk, the outer surface of seal disc are equipped with the first connection lantern ring by welding, the outer surface one of the first connection lantern ring at
Type has seal assembly, and seal assembly is socketed in the outer surface of screw rod, and seal assembly includes sealing shroud, extends baffle ring and contraction
Ring, the sealing shroud are bonded in the outer surface of the first connection lantern ring, sealing shroud different from the first connection lantern ring one end one at
Type has extension baffle ring, and the sealing shroud and the outer surface for extending baffle ring are socketed with contractile ring, the outer surface one of the screw rod
Arch groove is formed, the outer wall of the arch groove is contacted with extension baffle ring and sealing shroud.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the seal disc is also wrapped
Chimeric ring is included, ring is fitted into and is integrally formed at the outer rim of seal disc, is fitted into the outside of one end insertion air compressor ontology of ring
Surface, the outer surface that air compressor ontology is located at chimeric ring are equipped with bolt by welding, and chimeric ring is run through in one end of bolt,
One end outer wall of bolt, which screws, is connected with nut.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the seal disc is located at
The side of chimeric ring is equipped with auxiliary connection lantern ring, and auxiliary connection lantern ring is integrally formed at the center side of seal disc, screw rod from
The center of auxiliary connection lantern ring is run through, and the side surface bonding of auxiliary connection lantern ring is equipped with seal assembly.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the seal disc it is interior
Wall opens up fluted, and the inside of seal disc, which is opened up, to be connected with oil extraction through-hole, one end of oil extraction through-hole with groove, oil extraction through-hole
The other end runs through the lateral wall of seal disc, and the side of the air compressor ontology is equipped with vacuum generator, vacuum generator
One end is connected with first pipe, and one end of first pipe is connected with oil extraction through-hole, vacuum generator different from first pipe one
Side is equipped with second pipe, and the outer wall of air compressor ontology is run through in one end of second pipe.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the side of chimeric ring is put
It is equipped with rubber pad, the chimeric contact portion for being placed on chimeric ring Yu air compressor ontology of rubber pad.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the first connection lantern ring with
And the outer surface of auxiliary connection lantern ring is equipped with seal assembly, and two seal assemblies are symmetrically installed.
As a kind of oil-leakage-prevention screw air compressor optimal technical scheme of the utility model, the vacuum generator
Pass through electric connection with the external world.
Compared with prior art, the utility model has the beneficial effects that there are two close for the screw rod outer surface socket of equipment
Sealing assembly, sealing shroud inside seal assembly and extends the outer wall that baffle ring is closely fitted in arch groove by contractile ring, very
Empty generator makes to form low-pressure area between seal assembly and screw rod in the process of running so that extend baffle ring and contractile ring with
The contact of arch groove more closely, effectively avoids the gas of air compressor body exterior from entering groove；Auxiliary connection lantern ring
The seal assembly of side by it is above-mentioned it is same in a manner of the oil of air compressor body interior is blocked, reduce oil spilling
Amount.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure in the utility model；
Fig. 3 is enlarged structure schematic diagram at A in the utility model；
In figure: 1, air compressor ontology；2, screw rod；21, arch groove；3, seal disc；31, it is fitted into ring；32, auxiliary connection
Lantern ring；33, the first connection lantern ring；34, groove；35, oil extraction through-hole；4, seal assembly；41, sealing shroud；42, extend baffle ring；43,
Contractile ring；5, vacuum generator；51, first pipe；52, second pipe；6, rubber pad；7, bolt.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment
Fig. 1-3 is please referred to, the utility model is the following technical schemes are provided: a kind of oil-leakage-prevention screw air compressor, packet
Air compressor ontology 1 is included, the inside of air compressor ontology 1 is equipped with screw rod 2, and air compressor sheet is run through in one end of screw rod 2
The side wall of body 1, the side wall that the outside of screw rod 2 is located at air compressor ontology 1 are connected with seal disc 3 by connection component, sealing
The outer surface of disk 3 is equipped with the first connection lantern ring 33 by welding, and the outer surface of the first connection lantern ring 33 is integrally formed with close
Sealing assembly 4, seal assembly 4 are socketed in the outer surface of screw rod 2, and seal assembly 4 includes sealing shroud 41, extends baffle ring 42 and receive
Contracting ring 43, sealing shroud 41 are bonded in the outer surface of the first connection lantern ring 33, and sealing shroud 41 connects the one of lantern ring 33 different from first
End is socketed with contractile ring 43, the outside of screw rod 2 integrally formed with baffle ring 42, sealing shroud 41 and the outer surface for extending baffle ring 42 is extended
Surface is contacted integrally formed with arch groove 21, the outer wall of arch groove 21 with extension baffle ring 42 and sealing shroud 41, the present embodiment
In, contractile ring 43 is made of elastic rubber, sealing shroud 41 and extends baffle ring 42 under the extruding of contractile ring 43 closely and arc
The outer surface of face slot 21 contacts.
Specifically, seal disc 3 further includes chimeric ring 31, it is fitted into ring 31 and is integrally formed at the outer rim of seal disc 3, be fitted into ring
The outer surface of 31 one end insertion air compressor ontology 1, the outer surface that air compressor ontology 1 is located at chimeric ring 31 are logical
It crosses welding and is equipped with bolt 7, chimeric ring 31 is run through in one end of bolt 7, and one end outer wall of bolt 7, which screws, is connected with nut, this implementation
In example, chimeric ring 31 is connect by bolt 7 with nut with air compressor ontology 1.
Specifically, the side that seal disc 3 is located at chimeric ring 31 is equipped with auxiliary connection lantern ring 32,32 one of auxiliary connection lantern ring
It is molded at the center side of seal disc 3, screw rod 2 runs through from the center of auxiliary connection lantern ring 32, the side of auxiliary connection lantern ring 32
Surface bonding is equipped with seal assembly 4, and seal assembly 4 blocks the oil inside air compressor ontology 1 in the present embodiment, subtracts
The spillway discharge of few oil.
Specifically, the inner wall of seal disc 3 opens up fluted 34, the inside of seal disc 3 is opened up to be led to oil extraction through-hole 35, oil extraction
The one end in hole 35 is connected with groove 34, and the other end of oil extraction through-hole 35 runs through the lateral wall of seal disc 3, air compressor ontology
1 side is equipped with vacuum generator 5, and one end of vacuum generator 5 is connected with first pipe 51, one end of first pipe 51 and row
Oil hole 35 is connected, and vacuum generator 5 is equipped with second pipe 52, one end of second pipe 52 different from the side of first pipe 51
Through the outer wall of air compressor ontology 1, groove 34 can be led to oil extraction in 5 operational process of vacuum generator in the present embodiment
Air inside hole 35 is taken away, so that forming low-pressure area inside groove 34 and oil extraction through-hole 35, convenient for sealing shroud 41 and extends gear
Ring 42 is fitted in the outer wall of arch groove 21.
Specifically, the side of chimeric ring 31 is placed with rubber pad 6, rubber pad 6 is chimeric to be placed on chimeric ring 31 and air pressure
The contact portion of contracting machine ontology 1, in the present embodiment rubber pad 6 to the contact portion of chimeric ring 31 and air compressor ontology 1 into
Row sealing, avoids oil from leaking out from the region.
Specifically, the outer surface of the first connection lantern ring 33 and auxiliary connection lantern ring 32 is equipped with seal assembly 4, and two
A seal assembly 4 is symmetrically installed, and two seal assemblies 4 are respectively to 1 external world of air compressor ontology and air pressure in the present embodiment
The inside of contracting machine ontology 1 is blocked, and the sealing performance of join domain is promoted.
Specifically, vacuum generator 5 and extraneous pass through are electrically connected, it is electrically connected in the present embodiment and is being run convenient for equipment
When obtain good power supply.
The working principle and process for using of the utility model: equipment sealing shroud 41 in use in the utility model
Pass through the outer surface for being adsorbed on arch groove 21 of the elastic force extruding of contractile ring 43 tightly with baffle ring 42 is extended, rubber pad 6 is to embedding
Cyclization 31 and the contact area of air compressor ontology 1 are sealed, and vacuum occurs air compressor ontology 1 in use
The synchronous operation of device 5, vacuum generator 5 are taken away the air inside groove 34 by first pipe 51, seal assembly 4 and screw rod
It is formed simultaneously low-pressure area between 2, while seal assembly 4 being made closely to be fitted in the outer surface of screw rod 2, when screw rod 2 rotates
There is the oil of part to overflow from 21 surface of arch groove in the process and connect lantern ring 32 into auxiliary, oil flows to groove 34 under the action of low pressure
Place reaches the inside of first pipe 51 by oil extraction through-hole 35, eventually passes through the pressurization of vacuum generator 5 and passes through second pipe later
52 discharge into the inside of air compressor ontology 1.
Above-described embodiment is only used for illustrating the inventive concept of the utility model, rather than to the utility model rights protection
Restriction, all non-essential modifications to the present invention made by this concept should all fall into the protection scope of the utility model.
Claims (7)
1. a kind of oil-leakage-prevention screw air compressor, including air compressor ontology (1), it is characterised in that: the air pressure
The inside of contracting machine ontology (1) is equipped with screw rod (2), and the side wall of air compressor ontology (1), institute are run through in one end of the screw rod (2)
The outside for stating screw rod (2) is located at the side wall of air compressor ontology (1) and is connected with seal disc (3), seal disc by connection component
(3) outer surface is equipped with the first connection lantern ring (33), the outer surface one of first connection lantern ring (33) by welding
It forms seal assembly (4), seal assembly (4) is socketed in the outer surface of screw rod (2), and seal assembly (4) includes sealing shroud
(41), extend baffle ring (42) and contractile ring (43), the sealing shroud (41) are bonded in the outside table of the first connection lantern ring (33)
Face, sealing shroud (41) connect the one end of lantern ring (33) integrally formed with extension baffle ring (42), the sealing shroud (41) different from first
It is socketed with contractile ring (43) with the outer surface for extending baffle ring (42), the outer surface of the screw rod (2) is integrally formed with arch groove
(21), the outer wall of the arch groove (21) is contacted with extension baffle ring (42) and sealing shroud (41).
2. a kind of oil-leakage-prevention screw air compressor according to claim 1, it is characterised in that: the seal disc (3)
Further include chimeric ring (31), be fitted into ring (31) and be integrally formed at the outer rim of seal disc (3), one end insertion for being fitted into ring (31) is empty
The outer surface of air compressor ontology (1), the outer surface that air compressor ontology (1) is located at chimeric ring (31) are set by welding
Have bolt (7), chimeric ring (31) are run through in one end of bolt (7), and one end outer wall of bolt (7), which screws, is connected with nut.
3. a kind of oil-leakage-prevention screw air compressor according to claim 2, it is characterised in that: the seal disc (3)
It is equipped with auxiliary connection lantern ring (32) positioned at the side of chimeric ring (31), auxiliary connection lantern ring (32) is integrally formed in seal disc (3)
Center side at, screw rod (2) from auxiliary connection lantern ring (32) center run through, auxiliary connection lantern ring (32) side surface bonding
Equipped with seal assembly (4).
4. a kind of oil-leakage-prevention screw air compressor according to claim 3, it is characterised in that: the seal disc (3)
Inner wall open up fluted (34), the inside of seal disc (3) open up with oil extraction through-hole (35), one end of oil extraction through-hole (35) with it is recessed
Slot (34) is connected, and the other end of oil extraction through-hole (35) runs through the lateral wall of seal disc (3), the air compressor ontology (1)
Side be equipped with vacuum generator (5), one end of vacuum generator (5) is connected with first pipe (51), first pipe (51)
One end is connected with oil extraction through-hole (35), and vacuum generator (5) is equipped with second pipe (52) different from the side of first pipe (51),
The outer wall of air compressor ontology (1) is run through in one end of second pipe (52).
5. a kind of oil-leakage-prevention screw air compressor according to claim 4, it is characterised in that: the one of chimeric ring (31)
Side is placed with rubber pad (6), the chimeric contact portion for being placed on chimeric ring (31) Yu air compressor ontology (1) of rubber pad (6).
6. a kind of oil-leakage-prevention screw air compressor according to claim 5, it is characterised in that: the first connection lantern ring
(33) and the outer surface of auxiliary connection lantern ring (32) is equipped with seal assembly (4), and two seal assemblies (4) are symmetrically pacified
Dress.
7. a kind of oil-leakage-prevention screw air compressor according to claim 6, it is characterised in that: the vacuum generator
(5) pass through electric connection with the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212455.6U CN209414172U (en) | 2018-12-27 | 2018-12-27 | A kind of oil-leakage-prevention screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212455.6U CN209414172U (en) | 2018-12-27 | 2018-12-27 | A kind of oil-leakage-prevention screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209414172U true CN209414172U (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822212455.6U Active CN209414172U (en) | 2018-12-27 | 2018-12-27 | A kind of oil-leakage-prevention screw air compressor |
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| Country | Link |
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| CN (1) | CN209414172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610494A (en) * | 2020-12-07 | 2021-04-06 | 瑞智(九江)精密机电有限公司 | Sealed grease proofing structure of compressor |
-
2018
- 2018-12-27 CN CN201822212455.6U patent/CN209414172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610494A (en) * | 2020-12-07 | 2021-04-06 | 瑞智(九江)精密机电有限公司 | Sealed grease proofing structure of compressor |
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