CN206477997U - A kind of direct-connected oil-free air compressor - Google Patents
A kind of direct-connected oil-free air compressor Download PDFInfo
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- CN206477997U CN206477997U CN201720054899.4U CN201720054899U CN206477997U CN 206477997 U CN206477997 U CN 206477997U CN 201720054899 U CN201720054899 U CN 201720054899U CN 206477997 U CN206477997 U CN 206477997U
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- orbiting scroll
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Abstract
A kind of direct-connected oil-free air compressor that the utility model is provided, including compression set, power transmission and drive device.Compression set includes air inlet, exhaust outlet, movable orbiting scroll and fixed scroll, and drive device includes motor, and power transmission includes compressor crank shaft.One end of compressor crank shaft is attached with rotor, the other end is attached with the bearing block, bearing block is connected with movable orbiting scroll, the startup of the motor drives compressor crank shaft to rotate to drive the movable orbiting scroll to be rotated, the movable orbiting scroll is intermeshed with fixed scroll, movable orbiting scroll relative to fixed scroll along certain radius make plane motion when, the compression chamber of volume change is formed between movable orbiting scroll and fixed scroll, compression to air is realized.The direct-connected oil-free air compressor that the utility model is provided, reduces compressor volume, improves drive efficiency and accuracy, reduce maintenance rate.
Description
Technical field
The utility model is related to air compressor technical field, more particularly to a kind of direct-connected oil-free air compressor.
Background technology
Air compressor is a kind of device that mechanical energy is converted into gas pressure energy, is widely used in industrial circle.
Due to polluting the shortcomings of big, maintenance period is short, space-consuming is big with the presence of oily air compressor, current oil-free air compressor is just
There is oily air compressor in progressively substitution, how to take other effective ways to realize lubrication, sealing, the drop of oil-free air compressor
The functions such as temperature, which become, attaches most importance to.While the maintenance period in order to extend air compressor, air compressor should be reduced as far as possible
Parts, drive device and the compression set of existing air compressor need with bent axle to be connected by motor shaft, such as specially
In sharp " a kind of Vehicular direct-current Oil-free Mechanical Vacuum Pump scroll air compressor (patent No. CN201620082221.2) ", its compressor is bent
The input of axle and the output end of motor shaft are connected by spline, and spline is in lower be particularly in contact that work long hours
Easily worn and torn when bad, this shortens maintenance period, reduces drive efficiency, increases driving error to a certain extent.
Utility model content
In order to overcome the drawbacks described above of existing air compressor, it is empty that the utility model provides a kind of direct-connected oil-free scroll formula
Air compressor, on the one hand can solve by oil-free substitute have oil produce the problem of, on the other hand can realize extension maintenance period,
Improve drive efficiency, reduce the functions such as driving error, while can also save space.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of direct-connected oil-free air compressor, including gas compressing apparatus, power transmission and drive device, the gas
Body compression set includes air inlet, exhaust outlet, movable orbiting scroll and fixed scroll, and the drive device is motor；The power transmission dress
Put including compressor crank shaft, one end and the rotor of the compressor crank shaft are attached, the compressor crank shaft it is another
End is attached with bearing block, and bearing block is connected with movable orbiting scroll, and the motor start-up directly drives compressor crank shaft to rotate
So as to driving movable orbiting scroll to move, the relatively described fixed scroll of the movable orbiting scroll along certain circular path make plane motion when, it is described
The compression chamber of volume change is formed between movable orbiting scroll and fixed scroll, the compression to air is realized.
Further, the power transmission also includes the cooling fan being arranged on the compressor crank shaft, described
Cooling fan is delivered air in the gas compressing apparatus by wind scooper and the movable orbiting scroll and fixed scroll is cooled down.
Further, the movable orbiting scroll includes being arranged at the dynamic vortex tooth of side and is arranged at the radiating ribs of opposite side, institute
State movable orbiting scroll to be bolted to connection with bearing block, the compressor crank shaft is fixed on the bearing block.
Further, the fixed scroll includes being arranged at the static vortex tooth of side and is arranged at the radiating ribs of opposite side, institute
State and several portings are set in fixed scroll, air after compression is cooled down from exhaust outlet into cooler.
Further, dynamic vortex tooth and the static vortex tooth end face is provided with seal groove, is provided with the seal groove wear-resisting
Sealing gasket, sealing gasket end face is in close contact with orbiter or fixed scroll bottom surface, forms axial end sealing, sealing gasket side
It is in close contact with groove side wall, forms lateral seal.
Further, the bearing block includes four bearing chambers, and its bearing chamber for being located at center installs driving bearing, is used for
The clutch end of compressor crank shaft is connected, the bearing chamber that its excess-three is distributed in centre bearing room periphery is correspondingly provided with crank axle
Through hole, for installing anti-rotation mechanism.
Further, the anti-rotation mechanism is to prevent movable orbiting scroll rotation, it is ensured that movable orbiting scroll and fixed scroll it is correct
Engagement, makes air compressor stable and reliable in work, and its three groups of bearing by three crank axles and installed in crank axle two ends is constituted.
Further, the crank axle includes the first cylinder and the second cylinder, and the first cylinder stretches into the periphery axle of bearing block
Room is held, is fixedly connected by clutch shaft bearing with second bearing, the second cylinder stretches into casing bearing chamber, passes through 3rd bearing and the 4th
Bearing is fixedly connected, and the second cylindrical inside is set to the inner ring and song of screwed hollow hole, 3rd bearing and fourth bearing
Second cylinder of arbor is bolted connection, and the outer ring of 3rd bearing and fourth bearing is used by the gland of bearing hole end surface
Bolt lock presses extremely to be fastenedly connected to realize with casing, and 3rd bearing and fourth bearing inner ring are rotated together with crank axle, and
Three bearings and fourth bearing outer ring are fixed on casing.
Further, the drive device is AC permanent-magnet adjustable frequency motor, and its outer surface sets radiating ribs, and afterbody is set
Aerofoil fan carries out active airflow radiating to motor；Mounting bracket is set outside casing, and mounting bracket bottom sets damping installation foot.
Further, its cooperation mounting surface of the fixed scroll passes through dowel hole and positioning respectively with corresponding casing mounting surface
Pin is attached, and the radial direction back lash fixed by dowel hole, positioning pin column between movable orbiting scroll and fixed scroll.
Beneficial effect：Drive device passes through pressure with compression set in the direct-connected oil-free air compressor that the utility model is provided
Contracting machine crankshaft is joined directly together, and driving force is directly passed to the movable orbiting scroll of compressor by compressor crank shaft, is reduced middle zero
The use of part, reduces maintenance rate, shortens maintenance period, has saved space, while reducing driving error；According to required
Pressure value, motor carries out frequency-adjustable speed-adjustable by frequency converter, reduces fault rate while stable pressure is provided, can save
The about energy；The problem of sealing gasket can solve leakage is set；Cooling fan is set to solve movable orbiting scroll and the heat dissipation problem of fixed scroll；
The direct-connected oil-free air compressor that the utility model is provided realizes working stability, work due to compact and accurate structure design
Make efficiency high, maintenance period is long, the technique effect discharged in the course of work without oil.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of direct-connected oil-free air compressor of the present utility model
Fig. 2 is the decomposing schematic representation of direct-connected oil-free air compressor shown in Fig. 1
Fig. 3 is the fixed scroll structural representation of the direct-connected oil-free air compressor in the utility model
Fig. 4 is the orbiter structural representation of the direct-connected oil-free air compressor in the utility model
Fig. 5 is the bearing block structure schematic diagram of the direct-connected oil-free air compressor in the utility model
Fig. 6 is the structural representation of the direct-connected oil-free air compressor bent axle in the utility model
Fig. 7 is the structural representation of the direct-connected oil-free air compressor crank axle in the utility model
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to utility model purpose of the present utility model, technical scheme and beneficial effect
It is described further：
Referring to Fig.1 and 2, the utility model provides a kind of direct-connected oil-free air compressor, including gas compressing apparatus
100th, power transmission 200 and drive device 300, wherein, gas compressing apparatus 100 includes air inlet 45, exhaust outlet 46, moved
Whirlpool disk 6 and fixed scroll 4, movable orbiting scroll 6 are intermeshed with fixed scroll 4；Drive device 300 is AC permanent-magnet variable-frequency motor, including electricity
Machine rotor 17, motor shell 19, motor protecgulum 16, back cover of motor 20, aerofoil fan 21 and fan drum 23；Power transmission
200 include bearing block 7, admittance fan housing 8, compressor crank shaft 9, bearing 10, casing 11, cooling fan 15, fan hub 12, balance weight
13rd, flat key 14；Cooling fan 15, the rotor 17 of motor and aerofoil fan 21 are pacified successively by balance weight 13, flat key 14
Mounted in the input of compressor crank shaft 9, the clutch end of compressor crank shaft 9 extend into the bearing block 7 being connected with movable orbiting scroll 6
On, it coordinates mounting surface to be attached with casing 11 by dowel hole and positioning pin column to fixed scroll 4, and by dowel hole and
The radial direction back lash that positioning pin column is fixed between movable orbiting scroll 6 and fixed scroll 4, casing 11 by dowel hole and positioning pin column with
Blower-casting 12 is connected, and compressor crank shaft 9 is arranged in casing 11, and cooling fan 15 is by admittance fan housing 8 to movable orbiting scroll 6 and quiet
Whirlpool disk 4 is cooled down.Motor protecgulum 16 is connected by dowel hole and positioning pin column with blower-casting, motor shell 19 and motor
Protecgulum 16 is connected, and back cover of motor 20 is assemblied on motor shell 19, and motor cooling fan 21 is assemblied on bent axle 9, fan drum
23 are assemblied on back cover of motor 20.
The rotor 17 for the direct-connected oil-free air compressor that the utility model is provided is directly installed on compressor crank shaft 9
On, the main shaft 92 of compressor crank shaft 9 is fixed on casing 11, and the eccentric shaft 91 of compressor crank shaft 9 stretches into what is be connected with movable orbiting scroll 6
In bearing block 7, drive device 300 starts direct drive compressor crank shaft 9 and rotated so that air compression plant 100 starts work
Make, compression set 100, without being separately connected, reduces the use of middle parts, reduce maintenance rate with drive device 300,
Extend maintenance period.
With reference to Fig. 3, fixed scroll 4 includes joint face 41, the host cavity 42 to be formed that caved inward from joint face 41, is arranged at receipts
The static vortex tooth 43 for gradually opening helix shape, air inlet 45, exhaust outlet 46 and the radiating ribs at the joint face back side in cavity volume 42, it is quiet
The height of scroll wrap 43 is less than the height of host cavity 42, and therefore, movable orbiting scroll 6 can be housed in the host cavity 42, reduce air
The volume of compressor, the air after compression is cooled down from exhaust outlet 46 into cooler 5.
With reference to Fig. 4, movable orbiting scroll 6 includes being arranged at the dynamic vortex tooth 61 of side and is arranged at the radiating ribs of opposite side, moves whirlpool
Revolve the end of tooth 61 and be provided with seal groove 611, movable orbiting scroll 6 is bolted to connection with bearing block 7.
With reference to Fig. 3 and Fig. 4, dynamic vortex tooth 61 and static vortex tooth 43 end face is provided with seal groove, seal groove and is provided with
Wear-resistant seal pad, sealing gasket end face is in close contact with orbiter and fixed scroll bottom surface, forms axial end sealing, sealing gasket
Side is in close contact with groove side wall, forms lateral seal.
Specifically, with reference to Fig. 5, the bearing block 7 sets four bearing chambers, wherein, middle axle is located in four bearing chambers
Hold room 71 and driving bearing, the clutch end for connecting compressor crank shaft are installed；In order to prevent movable orbiting scroll rotation, ensure dynamic whirlpool
The correct engagement of disk and fixed scroll, makes air compressor stable and reliable in work, and four bearing chambers are located at three, periphery bearing chamber 72
Crank shaft through-hole is correspondingly arranged on, for installing anti-rotation mechanism, the anti-rotation mechanism is by three crank axles and installed in song
Three groups of bearings 10 at arbor two ends are constituted, and bearing uses angular contact bearing.
With reference to Fig. 6 and Fig. 7, compressor crank shaft 9 includes eccentric shaft 91 and main shaft 92, and the end of main shaft 92 is compressor crank shaft
9 input, is connected with cooling fan 15, rotor 17 and aerofoil fan 21, and the end of eccentric shaft 91 is bent for compressor
The clutch end of axle 9, is stretched on bearing block 7, and bearing block 7 is connected with movable orbiting scroll 6.Crank axle includes the He of the first cylinder 93
Second cylinder 94, the first cylinder 93 stretches into the periphery bearing chamber 72 of bearing block 7, is fixed and connected by clutch shaft bearing and second bearing
Connect, the second cylinder 94 stretches into casing bearing chamber, is fixedly connected by 3rd bearing with fourth bearing, the inside of the second cylinder 94 is set
For screwed hollow hole 941, the second cylinder 94 of the inner ring and crank axle of 3rd bearing and fourth bearing is tight by bolt
It is solidly connected, the outer ring of 3rd bearing and fourth bearing is tightened by bolts by the gland of bearing hole end surface to be killed to realize and casing
11 are fastenedly connected, and 3rd bearing and fourth bearing inner ring rotate together with crank axle, and 3rd bearing and fourth bearing outer ring are solid
It is scheduled on casing, to limit the slip of crank axle, to realize the anti-rotation effect of movable orbiting scroll 6.
The main shaft 92 of compressor crank shaft 9 and the distance between center line of eccentric shaft 91 are A, the cylinder of crank axle first and the second cylinder
The distance of center line is B, and movable orbiting scroll does plane motion, A=B=R by radius of R.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned implementation
Mode is changed and changed.Therefore, the utility model is not limited to embodiment disclosed and described above, to reality
It should also be fallen into scope of the claims of the present utility model with some new modifications and changes.Although in addition, this theory
Some particular terms have been used in bright book, but these terms are for convenience of description, not constitute any limit to the utility model
System.
Claims (10)
1. a kind of direct-connected oil-free air compressor, including gas compressing apparatus, power transmission and drive device, the gas
Compression set includes air inlet, exhaust outlet, movable orbiting scroll and fixed scroll, and the power transmission includes compressor crank shaft, described
Drive device includes motor, it is characterised in that：One end of the compressor crank shaft is attached with rotor, the other end and axle
Bearing is attached, and the bearing block is connected with the movable orbiting scroll, and the startup of the motor drives compressor
Crank rotation is so as to drive the movable orbiting scroll to be rotated, and the movable orbiting scroll is realized to sky with fixed scroll intermeshing
The compression of gas.
2. a kind of direct-connected oil-free air compressor according to claim 1, it is characterised in that the power transmission is also
Including the cooling fan being arranged on the compressor crank shaft, the cooling fan is delivered air to described by admittance fan housing
The movable orbiting scroll and fixed scroll are cooled down in gas compressing apparatus.
3. a kind of direct-connected oil-free air compressor according to claim 1 or 2, it is characterised in that the movable orbiting scroll includes
It is arranged at the dynamic vortex tooth of side and is arranged at the radiating ribs of opposite side, the movable orbiting scroll is bolted company with bearing block
Connect, the compressor crank shaft is fixed on the bearing block.
4. a kind of direct-connected oil-free air compressor according to claim 3, it is characterised in that the fixed scroll includes setting
Several portings are set in static vortex tooth and the radiating ribs for being arranged at opposite side in side, the fixed scroll, it is compressed
Air afterwards is cooled down from exhaust outlet into cooler.
5. a kind of direct-connected oil-free air compressor according to claim 4, it is characterised in that the dynamic vortex tooth and quiet whirlpool
Rotation increment face, which is provided with seal groove, the seal groove, is provided with wear-resistant seal pad, sealing gasket end face and orbiter or quiet vortex
Try to get to the heart of a matter face close contact, formed axial end sealing, sealing gasket side with groove side wall be in close contact, formed lateral seal.
6. a kind of direct-connected oil-free air compressor according to claim 3, it is characterised in that the bearing block includes four
Bearing chamber, its bearing chamber for being located at center installs driving bearing, the clutch end for connecting compressor crank shaft, its excess-three
The bearing chamber for being distributed in centre bearing room periphery is correspondingly provided with crank shaft through-hole, for installing anti-rotation mechanism.
7. a kind of direct-connected oil-free air compressor according to claim 6, it is characterised in that the anti-rotation mechanism is by three
Individual crank axle and three groups of bearings composition installed in crank axle two ends.
8. a kind of direct-connected oil-free air compressor according to claim 7, it is characterised in that the crank axle includes first
Cylinder and the second cylinder, the first cylinder stretch into the periphery bearing chamber of bearing block, are fixedly connected by clutch shaft bearing with second bearing,
Second cylinder stretches into the casing bearing chamber of the power transmission, is fixedly connected by 3rd bearing with fourth bearing, second
Cylindrical inside is set to screwed hollow hole, and the second cylinder of the inner ring and crank axle of 3rd bearing and fourth bearing passes through
Bolt is fastenedly connected, the outer ring of 3rd bearing and fourth bearing be tightened by bolts by the gland of bearing hole end surface realize with
Casing is fastenedly connected, and 3rd bearing and fourth bearing inner ring are rotated together with crank axle, 3rd bearing and fourth bearing outer ring
It is fixed on casing.
9. a kind of direct-connected oil-free air compressor according to claim 1, it is characterised in that the drive device is exchange
Permanent-magnetic variable-frequency motor, its outer surface sets radiating ribs, and afterbody sets aerofoil fan to carry out active airflow radiating to motor；Machine
Mounting bracket is set outside shell, and mounting bracket bottom sets damping installation foot.
10. direct-connected oil-free air compressor according to claim 1, it is characterised in that its cooperation of the fixed scroll is installed
Face is attached by dowel hole and positioning pin column respectively with corresponding casing mounting surface, and passes through dowel hole, positioning pin column
Radial direction back lash between fixed movable orbiting scroll and fixed scroll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054899.4U CN206477997U (en) | 2017-01-16 | 2017-01-16 | A kind of direct-connected oil-free air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054899.4U CN206477997U (en) | 2017-01-16 | 2017-01-16 | A kind of direct-connected oil-free air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206477997U true CN206477997U (en) | 2017-09-08 |
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ID=59754136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720054899.4U Active CN206477997U (en) | 2017-01-16 | 2017-01-16 | A kind of direct-connected oil-free air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206477997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278203A (en) * | 2018-01-19 | 2018-07-13 | 浙江奔凯精密机械有限公司 | A kind of oil-free scroll formula air compressor |
| CN114688020A (en) * | 2022-03-28 | 2022-07-01 | 摩登汽车有限公司 | Method for optimizing electric compressor |
-
2017
- 2017-01-16 CN CN201720054899.4U patent/CN206477997U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278203A (en) * | 2018-01-19 | 2018-07-13 | 浙江奔凯精密机械有限公司 | A kind of oil-free scroll formula air compressor |
| CN108278203B (en) * | 2018-01-19 | 2019-11-12 | 浙江奔凯精密机械有限公司 | A kind of oil-free scroll formula air compressor |
| CN114688020A (en) * | 2022-03-28 | 2022-07-01 | 摩登汽车有限公司 | Method for optimizing electric compressor |
| CN114688020B (en) * | 2022-03-28 | 2024-02-27 | 摩登汽车有限公司 | Optimization method of electric compressor |
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