CN210889094U - Cooling device of oil-free piston machine - Google Patents
Cooling device of oil-free piston machine Download PDFInfo
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- CN210889094U CN210889094U CN201921474405.3U CN201921474405U CN210889094U CN 210889094 U CN210889094 U CN 210889094U CN 201921474405 U CN201921474405 U CN 201921474405U CN 210889094 U CN210889094 U CN 210889094U
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- free piston
- piston machine
- cooling device
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Abstract
The utility model relates to an oilless piston machine cooling device, which comprises a fan shaft in transmission connection with a main journal of an oilless piston machine crankshaft and a centrifugal fan arranged on the fan shaft, wherein a wind scooper is arranged on the side wall of the oilless piston machine, the fan scooper is arranged outside the wind scooper, and the centrifugal fan is positioned in the wind scooper; the utility model discloses a fan is connected with the main journal transmission of oil-free piston machine bent axle, with the same motor drive of major structure sharing of oil-free piston machine, has effectively reduced fan fault rate, machine life greatly increased, and the fan is located the side of oil-free piston machine simultaneously, and the complete machine height reduces, makes the machine size littleer, the installation of being convenient for.
Description
Technical Field
The utility model relates to an oil-free piston machine cooling device.
Background
As shown in the attached drawings 3 and 4, the cooling system of the oil-free piston machine adopts an independent fan to cool, so that the whole vehicle is required to provide a power supply independently, the installation position is arranged below the oil-free piston machine, foreign matters such as particle dust can be more easily introduced into the cooling system, the heat dissipation port of the cooling system is blocked, the fan is accelerated to damage, and the heat dissipation effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an utilize the bent axle of oil-free piston machine to drive, effectively carry out refrigerated oil-free piston machine cooling device is provided.
The utility model adopts the technical proposal that: the utility model provides an oil-free piston machine cooling device, its includes the fan axle of being connected with the main journal transmission of oil-free piston machine bent axle and sets up the epaxial centrifugal fan of fan.
Furthermore, an air guide cover is arranged on the side wall of the oil-free piston engine, a fan cover is arranged on the outer side of the air guide cover, and the centrifugal fan is located in the air guide cover.
Furthermore, a crank arm is connected to the main journal through a flat key, and the fan shaft and the crank arm are fixed through bolts.
Further, the centrifugal fan is fixed on the fan shaft through a baffle.
Furthermore, a box cover is arranged on one side of the oil-free piston engine corresponding to the centrifugal fan, the fan shaft penetrates through the box cover, and the centrifugal fan is located on the outer side of the box cover.
Furthermore, the wind scooper is arranged on the outer side of the box cover.
Furthermore, the fan shaft is a stepped shaft, one end with a small diameter is connected with the centrifugal fan, and one end with a large diameter is connected with the crank arm.
Furthermore, the radial section of the air guide cover is U-shaped, the inner side end of the air guide cover is connected with the oil-free piston machine, and the fan cover is positioned at the outer side end of the air guide cover.
Furthermore, an air outlet channel is connected to an opening at the upper end of the air guide cover.
The utility model discloses an actively the effect does: the utility model discloses a fan is connected with the main journal transmission of oil-free piston machine bent axle, with the same motor drive of major structure sharing of oil-free piston machine, has effectively reduced fan fault rate, machine life greatly increased. Meanwhile, the fan is positioned on the side of the oil-free piston machine, the height of the whole machine is reduced, the size of the machine is smaller, and the installation is convenient.
Drawings
FIG. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is a schematic view of the explosion structure of the present invention;
FIG. 3 is a schematic diagram of a prior art structure;
fig. 4 is a sectional view taken along line a-a in fig. 3.
Detailed Description
As shown in attached figures 1 and 2, the utility model discloses a fan shaft 3 and the centrifugal fan 5 of setting on fan shaft 3 that are connected with the transmission of the main journal 1 of oil-free piston machine 8 bent axle. The fan shaft 3 and the centrifugal fan 5 are provided with two groups, are respectively positioned on two sides of the crankshaft and are in transmission with the main journal 1, and the two sides are cooled by the oil-free piston machine 8. Because all be provided with the bent axle on oil-free piston machine, the utility model discloses a carry out the transmission with the bent axle and be connected, realized driving with the piston connecting rod shared crankshaft of oil-free piston machine, only need a motor drive bent axle to rotate and can realize the same transmission of the two, cancelled original independent fan structure, realize the integration, and the fan is located the lateral wall of oil-free piston machine 8, and the foreign matter is difficult to enter into the fan in, whole fault rate reduces, the life greatly increased of machine.
An air guide cover 6 is installed on the side wall of the oil-free piston machine 8, a fan cover 7 is arranged on the outer side of the air guide cover 6, and the centrifugal fan 5 is located in the air guide cover 6. The main journal 1 is connected with a crank arm 2 through a flat key, a fan shaft 3 and the crank arm 2 are fixed through bolts, and a centrifugal fan 5 is fixed on the fan shaft 3 through a baffle plate.
The side wall of the oil-free piston machine 8 corresponding to the centrifugal fan 5 is provided with a box cover 4, the fan shaft 3 penetrates through the box cover 4, one end of the fan shaft is located on the outer side of the box cover 4, the centrifugal fan 5 is located on the outer side of the box cover 4, and the air guide cover 6 is correspondingly arranged on the outer side of the box cover 4.
The fan shaft 3 is a stepped shaft, one end with a small diameter is connected with the centrifugal fan 5, and one end with a large diameter is connected with the crank arm 2.
The radial section of the wind guide cover 6 is U-shaped, the inner side end of the wind guide cover is connected with an oil-free piston machine 8, and the fan cover 7 is positioned at the outer side end of the wind guide cover 6. An air outlet channel 9 is arranged at the upper opening of the air guide cover 6. Under the action of the centrifugal fan 5, air enters from one side of the fan cover 7 and is blown into the oil-free piston machine through the box cover 4 to cool the oil-free piston machine, and the air outlet channel 9 is used for exhausting air.
The utility model discloses a fan adopts the integrated design with no oily piston machine, in the appearance, has reduced the complete machine height, makes machine size littleer, is convenient for install and transport. Meanwhile, the running noise of the whole machine is reduced from 75dB to 72 dB; after the electronic fan is removed, the fan mounting seat is also removed, so that the weight of the whole machine is reduced; the electronic fan is expensive, the manufacturing cost is reduced after the electronic fan is removed, the electronic fan needs to be independently controlled by an external power supply, and the control is simplified after the electronic fan is removed.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (9)
1. The cooling device of the oil-free piston machine is characterized by comprising a fan shaft (3) in transmission connection with a main journal (1) of a crankshaft of the oil-free piston machine (8) and a centrifugal fan (5) arranged on the fan shaft (3).
2. An oil-free piston machine cooling device as claimed in claim 1, characterized in that a wind scooper (6) is provided on a side wall of the oil-free piston machine (8), a fan shroud (7) is provided outside the wind scooper (6), and the centrifugal fan (5) is located inside the wind scooper (6).
3. An oil-free piston machine cooling device as claimed in claim 1 or 2, characterized in that the crank arm (2) is connected to the main journal (1) by a flat key, and the fan shaft (3) is fixed to the crank arm (2) by a bolt.
4. An oil-free piston machine cooling device as claimed in claim 1, characterized in that the centrifugal fan (5) is fixed to the fan shaft (3) by means of a flap.
5. An oil-free piston machine cooling device as claimed in claim 2, characterized in that a case cover (4) is provided on the side of the oil-free piston machine (8) corresponding to the centrifugal fan (5), the fan shaft (3) passing through the case cover (4), the centrifugal fan (5) being located outside the case cover (4).
6. An oil-free piston machine cooling device as claimed in claim 5, characterized in that the wind scooper (6) is mounted on the outside of the case cover (4).
7. An oil-free piston machine cooling device as claimed in claim 3, characterized in that the fan shaft (3) is a stepped shaft, the smaller diameter end of which is connected to the centrifugal fan (5) and the larger diameter end of which is connected to the crank arm (2).
8. An oil-free piston engine cooling device as claimed in claim 2, characterized in that the radial cross section of the air guiding cover (6) is U-shaped, the inner side end of the air guiding cover is connected with the oil-free piston engine (8), and the fan cover (7) is positioned at the outer side end of the air guiding cover (6).
9. An oil-free piston machine cooling device as claimed in claim 8, characterized in that an air outlet channel (9) is connected to the upper opening of the air guiding cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474405.3U CN210889094U (en) | 2019-09-06 | 2019-09-06 | Cooling device of oil-free piston machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474405.3U CN210889094U (en) | 2019-09-06 | 2019-09-06 | Cooling device of oil-free piston machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889094U true CN210889094U (en) | 2020-06-30 |
Family
ID=71314120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474405.3U Active CN210889094U (en) | 2019-09-06 | 2019-09-06 | Cooling device of oil-free piston machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648936A (en) * | 2020-06-17 | 2020-09-11 | 耐力压缩机(北京)有限公司 | Cooling mechanism for rail transit control system |
| CN114738231A (en) * | 2022-05-13 | 2022-07-12 | 耐力股份有限公司 | New forms of energy do not have oily secondary piston air compressor machine entirely |
-
2019
- 2019-09-06 CN CN201921474405.3U patent/CN210889094U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648936A (en) * | 2020-06-17 | 2020-09-11 | 耐力压缩机(北京)有限公司 | Cooling mechanism for rail transit control system |
| CN111648936B (en) * | 2020-06-17 | 2022-05-06 | 耐力压缩机(北京)有限公司 | Cooling mechanism for rail transit control system |
| CN114738231A (en) * | 2022-05-13 | 2022-07-12 | 耐力股份有限公司 | New forms of energy do not have oily secondary piston air compressor machine entirely |
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