CN207111361U - A kind of air-cooled structure of oilless air compressor - Google Patents
A kind of air-cooled structure of oilless air compressor Download PDFInfo
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- CN207111361U CN207111361U CN201720837108.5U CN201720837108U CN207111361U CN 207111361 U CN207111361 U CN 207111361U CN 201720837108 U CN201720837108 U CN 201720837108U CN 207111361 U CN207111361 U CN 207111361U
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Abstract
The utility model provides a kind of air-cooled structure of oilless air compressor, belongs to air compressor machine technical field.It solves the problems, such as that existing oilless air compressor service life is low.The air-cooled structure of this oilless air compressor, oilless air compressor includes motor, the end of motor is fixed with crankcase, at least one cylinder body is fixed with crankcase lateral wall, air-cooled structure includes the shell for being connected in motor end, and crankcase is located at the inside of shell, cooling air channel is formed between the inwall of shell and the outer wall of crankcase, air inlet is offered on the end face of shell, fan blade is additionally provided between the outer face of crankcase and the inner face of shell.The air-cooled structure of this oilless air compressor can improve the service life of oilless air compressor on the basis of radiating effect is ensured.
Description
Technical field
The utility model belongs to air compressor machine technical field, is related to a kind of air-cooled structure of oilless air compressor.
Background technology
Oilless air compressor is to belong to minitype reciprocating piston formula compressor, when motor-driven compressor bent axle rotates, passes through company
The transmission of bar, there is self-lubricating just to be moved reciprocatingly without adding the piston of any lubricant, by cylinder inner wall, cylinder head and work
The swept volume that plug top surface is formed then can generating period change.The part such as piston, connecting rod is at a high speed during compressor operation
Operating, it is higher to cooling requirements, therefore fan blade can be also set on air compressor machine, to produce cooling air-flow.
Such as documents (application number：201520878040.6), (application number：201520441903.3) and (application number：
201510935279.7) crankcase is fixed with the motor in, motor shaft is stretched into crankcase, and bent axle is connected on motor shaft,
The connecting rod of piston is directly set on bent axle, and fan blade is fixed with the end of bent axle, but the fan blade is located inside crankcase, so
Air inlet is opened up on crankcase afterwards, the structure causes the motion portion that cooling air-flow caused by fan blade is directly blown onto inside crankcase
On part, long-term use can cause moving component dust stratification, so as to serious wear occur, reduce service life.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of wind of oilless air compressor
Air-cooled structure, the air-cooled structure of the oilless air compressor can improve the use longevity of oilless air compressor on the basis of radiating effect is ensured
Life.
The purpose of this utility model can be realized by following technical proposal：A kind of air-cooled structure of oilless air compressor, nothing
Oily air compressor machine includes motor, and the end of the motor is fixed with crankcase, at least one is fixed with the lateral wall of the crankcase
Individual cylinder body, it is characterised in that the air-cooled structure includes the shell for being connected in motor end, and above-mentioned crankcase is located at the interior of shell
Portion, cooling air channel is formed between the inwall of the shell and the outer wall of crankcase, air inlet is offered on the end face of the shell,
Fan blade is additionally provided between the outer face of the crankcase and the inner face of shell.
Cooling air channel is formed by the inwall of shell and the outer wall of crankcase, therefore air-flow caused by fan blade can pass through shell
Between inner face and crankcase outer face and between shell inner peripheral surface and crankcase outer peripheral face, so as to the end face of crankcase with
And outer peripheral face carries out cooling so that the moving component in crankcase and crankcase has preferable radiating effect, simultaneously
Crankcase is connected on the end face of motor, and fan blade is located at the end of crankcase, therefore caused cooling air-flow can be direct
Impact motor so that motor has preferable radiating effect, and further, fan blade is located at the outside of crankcase, and air inlet is opened
It is located on shell, therefore cooling air-flow caused by fan blade will not enter inside crankcase, so as to avoid the impurities accumulations such as dust from existing
On moving component inside crankcase, the abrasion of moving component is reduced, improves the job stability of oilless air compressor and using the longevity
Life.
In the air-cooled structure of above-mentioned oilless air compressor, offer some axially disposed on the cylinder body and run through
Air vent, some air vents are set around inner chamber of cylinder block, and the inner of the air vent is connected with cooling air channel.Air vent is used
Shell is flowed out in cooling air-flow, and air vent is set around inner chamber of cylinder block, therefore can improve to the work in cylinder body and cylinder body
The radiating effect of the parts such as plug, simultaneously because cylinder body is located in the side wall of crankcase, therefore cooling air-flow is first along the axle of crankcase
To flowing, it is necessary to impact motor end face rear steering passage, therefore the structure can improve the radiating effect to motor.
In the air-cooled structure of above-mentioned oilless air compressor, connecting shaft is connected with the crankcase, the one of the connecting shaft
End is connected with the motor shaft of motor, and the other end stretches out the end face of crankcase, and the fan blade is connected in the external part end of connecting shaft
Portion, the side of the fan blade is relative with crankcase end face, and opposite side is relative with air inlet.Fan blade directly by motor driven, from
And ensure the synchronism of motor and fan blade, and then the reliability of radiating is ensure that, oil-free can be improved during long-term use
The service life of air compressor machine.
In the air-cooled structure of above-mentioned oilless air compressor, the crankcase is cylindrical, and the external diameter of the fan blade is more than
The external diameter of crankcase.The external diameter of fan blade is larger, its caused cooling air-flow can along crankcase outer peripheral face and blow to motor
End face, so as to have more preferable radiating effect to motor, improve the stability of motor operation.
In the air-cooled structure of above-mentioned oilless air compressor, the inner chamber of the crankcase and the intracavity inter-connection of cylinder body are formed
The cavity of closing, air admission hole is offered on the crankcase, offer venthole on the cylinder body, on the end face of the crankcase
Through hole is offered, the connecting shaft passes through through hole, and sealing ring is provided between connecting shaft and through hole hole wall.Air admission hole and
Venthole contracts for gas stream dynamic pressure, and sealing ring causes cooling air-flow caused by fan blade not enter inside crankcase, ensures
The stability of crankcase internal moving parts, while the cavity of crankcase and cylinder body inner sealing can also reduce internal moving parts
Noise caused by operating reduces noise during oilless air compressor work to external diffusion.
In the air-cooled structure of above-mentioned oilless air compressor, circumferentially there is connection flange outside the both ends of the motor,
There are some axially disposed strip fin on the outer wall of motor, and the both ends of fin extend respectively to two connections
Flange, the cooling air channel are relative with connection flange.Cooling air-flow can directly act on connection flange, and fin and connection
Flange is connected, therefore connection flange and fin are respectively provided with preferable radiating effect, and then improves the service life of motor.
In the air-cooled structure of above-mentioned oilless air compressor, there are some radiating convex tendons on the outer wall of the cylinder body.Radiating
Convex tendon can improve the heat dispersion of cylinder body.
Compared with prior art, the air-cooled structure of this oilless air compressor has advantages below：
1st, because fan blade is located at the outside of crankcase, and air inlet is opened on shell, therefore cooling gas caused by fan blade
Stream will not enter inside crankcase, so as to avoid the impurities accumulations such as dust on the moving component inside crankcase, reduce motion
The abrasion of part, improve the job stability and service life of oilless air compressor.
2nd, because crankcase is connected on the end face of motor, and fan blade is located at the end of crankcase, therefore caused cold
But air-flow can directly impact motor so that motor has preferable radiating effect.
3rd, because the inner chamber of crankcase and cylinder body is closed, therefore noise caused by internal moving parts operating can be reduced
To external diffusion, that is, reduce noise during oilless air compressor work.
4th, because fan blade is directly by motor driven, so as to ensure the synchronism of motor and fan blade, and then it ensure that radiating
Reliability, the service life of oilless air compressor can be improved during long-term use.
Brief description of the drawings
Fig. 1 is the lateral partial structurtes sectional view of oilless air compressor.
Fig. 2 is the structure sectional view at another visual angle of oilless air compressor.
Fig. 3 is the structural representation of motor and crankcase.
Fig. 4 is the structure sectional view of oilless air compressor in embodiment two.
In figure, 1, motor；11st, motor shaft；12nd, flange is connected；13rd, fin；2nd, crankcase；21st, bent axle；22nd, connect
Axle；23rd, air admission hole；24th, through hole；25th, sealing ring；3rd, cylinder body；31st, air vent；32nd, venthole；33rd, radiate convex tendon；34th, it is living
Plug；35th, link assembly；4th, shell；41st, cooling air channel；42nd, air inlet；5th, fan blade.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one：
As shown in Figure 1 and Figure 2, a kind of air-cooled structure of oilless air compressor, oilless air compressor include motor 1, and the two of motor 1
End is respectively and fixedly provided with crankcase 2, two cylinder bodies 3 is fixed with the lateral wall of crankcase 2, two cylinder bodies 3 are located at crankcase 2
Top, and two cylinder bodies 3 are V-shaped symmetrical, are provided with piston 34 in cylinder body 3, the both ends of motor shaft 11 of motor 1 are respectively protruding into
In two crankcases 2, bent axle 21 is fixed with the end of motor shaft 11, bent axle 21 and the eccentric setting of motor shaft 11, bent axle 21 pass through
Link assembly 35 is connected with piston 34.Air-cooled structure includes fan blade 5, and the end of bent axle 21 is fixed with connecting shaft 22, the connection
Axle 22 is eccentric shaft, i.e. connecting shaft 22 and the eccentric setting of bent axle 21, so as to have identical axial line, motor 1 with motor shaft 11
Both ends be also fixed with shell 4, crankcase 2 is located at the inside of shell 4, formed between the inwall of shell 4 and the outer wall of crankcase 2
Cooling air channel 41, air inlet 42 is offered on the end face of shell 4, the end face of crankcase 2 is stretched out in one end of connecting shaft 22, and fan blade 5 is set
Put in the outside of crankcase 2, and the end of connecting shaft 22 and the center of fan blade 5 are fixedly connected with.Fan blade 5 is located at the interior of shell 4
Between end face and the outer face of crankcase 2, the side of fan blade 5 is relative with the end face of crankcase 2, and opposite side is relative with air inlet 42,
Crankcase 2 is cylindrical, and the external diameter of fan blade 5 is more than the external diameter of crankcase 2.
With reference to shown in Fig. 3, the inner chamber of crankcase 2 and the intracavity inter-connection of cylinder body 3 simultaneously form the cavity of closing, crankcase 2
On offer air admission hole 23, venthole 32 is offered on cylinder body 3, through hole 24, connecting shaft are further opened with the end face of crankcase 2
22 pass through through hole 24, and sealing ring 25 is provided between connecting shaft 22 and the hole wall of through hole 24.The both ends outer edge week of motor 1
To with connection flange 12, there is some axially disposed strip fin 13, and fin 13 on the outer wall of motor 1
Both ends extend respectively to two connection flange 12, cooling air channel 41 is relative with being connected flange 12, is offered on cylinder body 3 some along axle
To the air vent 31 for setting and running through, some air vents 31 are set around the inner chamber of cylinder body 3, the inner and the cooling wind of air vent 31
Road 41 is connected, and has some radiating convex tendons 33 on the outer wall of cylinder body 3.
Embodiment two：
The air-cooled structure of the oilless air compressor and embodiment one are essentially identical, and difference is as shown in figure 4, crankcase 2
Lateral wall on be fixed with three cylinder bodies 3, three cylinder bodies 3 are circumferential uniform, i.e. three 3 Y-shaped distributions of cylinder body, and connecting shaft
22 motor shafts 11 for motor 1, fan blade 5 are fixed on motor shaft 11.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used the terms such as motor 1, motor shaft 11, connection flange 12 herein, it is not precluded from using it
The possibility of its term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It
Be construed to any additional limitation and all disagreed with the utility model spirit.
Claims (7)
1. a kind of air-cooled structure of oilless air compressor, oilless air compressor includes motor (1), and the end of the motor (1) is fixed with
Crankcase (2), at least one cylinder body (3) is fixed with the lateral wall of the crankcase (2), it is characterised in that the air-cooled knot
Structure includes the shell (4) for being connected in motor (1) end, and above-mentioned crankcase (2) is located at the inside of shell (4), the shell (4)
Cooling air channel (41) is formed between the outer wall of inwall and crankcase (2), air inlet is offered on the end face of the shell (4)
(42), it is additionally provided with fan blade (5) between the outer face of the crankcase (2) and the inner face of shell (4).
2. the air-cooled structure of oilless air compressor according to claim 1, it is characterised in that offered on the cylinder body (3)
Air vent (31) that is some axially disposed and running through, some air vents (31) are set around cylinder body (3) inner chamber, the ventilation
The inner in hole (31) is connected with cooling air channel (41).
3. the air-cooled structure of oilless air compressor according to claim 1 or 2, it is characterised in that connect in the crankcase (2)
Connecting shaft (22) is connected to, one end of the connecting shaft (22) is connected with the motor shaft (11) of motor (1), and the other end stretches out crankcase
(2) end face, the fan blade (5) are connected in the external part end of connecting shaft (22), the side of the fan blade (5) and crankcase
(2) end face is relative, and opposite side is relative with air inlet (42).
4. the air-cooled structure of oilless air compressor according to claim 3, it is characterised in that the crankcase (2) is in cylinder
Shape, the external diameter of the fan blade (5) are more than the external diameter of crankcase (2).
5. the air-cooled structure of oilless air compressor according to claim 4, it is characterised in that the inner chamber of the crankcase (2)
The cavity of closing is formed with the intracavity inter-connection of cylinder body (3), air admission hole (23), the cylinder body are offered on the crankcase (2)
(3) venthole (32) is offered on, through hole (24) is offered on the end face of the crankcase (2), the connecting shaft (22) is worn
Through hole (24) is crossed, and sealing ring (25) is provided between connecting shaft (22) and through hole (24) hole wall.
6. the air-cooled structure of oilless air compressor according to claim 1 or 2, it is characterised in that the both ends of the motor (1)
Outside circumferentially has connection flange (12), has some axially disposed strip fin on the outer wall of motor (1)
(13), and the both ends of fin (13) extend respectively to two connection flange (12), and the cooling air channel (41) is with being connected flange
(12) it is relative.
7. the air-cooled structure of oilless air compressor according to claim 1 or 2, it is characterised in that the outer wall of the cylinder body (3)
It is upper that there are some radiating convex tendons (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837108.5U CN207111361U (en) | 2017-07-11 | 2017-07-11 | A kind of air-cooled structure of oilless air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837108.5U CN207111361U (en) | 2017-07-11 | 2017-07-11 | A kind of air-cooled structure of oilless air compressor |
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| Publication Number | Publication Date |
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| CN207111361U true CN207111361U (en) | 2018-03-16 |
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ID=61575793
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720837108.5U Active CN207111361U (en) | 2017-07-11 | 2017-07-11 | A kind of air-cooled structure of oilless air compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519354A (en) * | 2018-12-04 | 2019-03-26 | 浙江巨霸焊接设备制造有限公司 | A kind of multi-cylinder air compressor machine |
| CN112177889A (en) * | 2020-09-23 | 2021-01-05 | 宁波必达机械制造有限公司 | Air-cooled air compressor with improve structure |
| CN117345579A (en) * | 2023-08-04 | 2024-01-05 | 丹阳市创锐机电设备有限公司 | Novel internal air inlet mute air oil-free compressor |
-
2017
- 2017-07-11 CN CN201720837108.5U patent/CN207111361U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519354A (en) * | 2018-12-04 | 2019-03-26 | 浙江巨霸焊接设备制造有限公司 | A kind of multi-cylinder air compressor machine |
| CN112177889A (en) * | 2020-09-23 | 2021-01-05 | 宁波必达机械制造有限公司 | Air-cooled air compressor with improve structure |
| CN117345579A (en) * | 2023-08-04 | 2024-01-05 | 丹阳市创锐机电设备有限公司 | Novel internal air inlet mute air oil-free compressor |
| CN117345579B (en) * | 2023-08-04 | 2024-03-15 | 丹阳市创锐机电设备有限公司 | Novel internal air inlet mute air oil-free compressor |
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