CN220667770U - Air inlet structure of air compressor - Google Patents
Air inlet structure of air compressor Download PDFInfo
- Publication number
- CN220667770U CN220667770U CN202321529175.2U CN202321529175U CN220667770U CN 220667770 U CN220667770 U CN 220667770U CN 202321529175 U CN202321529175 U CN 202321529175U CN 220667770 U CN220667770 U CN 220667770U
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- air
- air inlet
- crankcase
- connecting rod
- air compressor
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- 238000009413 insulation Methods 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides an air inlet structure of an air compressor, and belongs to the technical field of air compressors. The problem that an existing connecting rod bearing is easy to wear is solved. The air inlet structure of the air compressor comprises a crankcase, wherein an air inlet channel is arranged in the crankcase, an air inlet of the air inlet channel is communicated with the outside, and an air outlet of the air inlet channel is positioned at the middle lower part in the crankcase. The gas outlet of the gas inlet channel of this structure is located the well lower part position in the crankcase for gaseous admission path is longer, and then has reduced the noise that admits air, and outside air enters into the well lower part in the crankcase through the gas inlet channel, and the air compressor machine during operation plays the effect of heat dissipation cooling to the lower part of connecting rod in the crankcase, and then reduces the temperature of the bearing of setting at the connecting rod lower extreme portion, slows down the volatilization of bearing grease, and then reduces the wearing and tearing of bearing, has prolonged the life of complete machine.
Description
Technical Field
The utility model belongs to the technical field of air compressors, and particularly relates to an air inlet structure of an air compressor.
Background
The air compressor is a main body in an air source device, and is a device for converting mechanical energy of a prime motor into air pressure energy. However, when the air compressor works, a large air intake noise is generated, in order to reduce the air intake noise, a muffler is generally arranged at an air intake position of the air compressor, and the principle of the muffler is roughly divided into two types, namely, by suddenly changing the volume of an air path, and lengthening the air intake path. But carry out the amortization through setting up the muffler on the air compressor machine, increased extra spare part, and then increased the cost of air compressor machine, because the muffler adopts the external design, increased the whole volume of air compressor machine to a certain extent.
At present, chinese patent network discloses an air pump [ authorized bulletin number: CN215979776U ], including the casing, the upside of casing is provided with the installation port that upwards extends, is formed with the air inlet chamber in the casing, and the lateral part of installation port is provided with the inlet installation mouth that feeds through with the air inlet chamber, and the intake pipe subassembly passes through grafting detachably and installs in the inlet installation mouth.
The air pump is the air compressor, and outside air enters into inside the casing through the intake pipe subassembly, and this mode of admitting air has reduced the noise of admitting air to a certain extent, but the inside of air compressor machine casing has connecting rod, piston and motor shaft, and the piston setting is on the top of connecting rod, and the connecting rod passes through the bearing housing to be established on the motor shaft, drives connecting rod up-and-down reciprocating motion after the motor shaft rotates, and the connecting rod drives piston along reciprocating motion from top to bottom, realizes the air inlet of air compressor machine and gives vent to anger. However, after the motor shaft drives the connecting rod to reciprocate up and down for a long time, the lower end of the connecting rod and the bearing can generate heat, the grease of the bearing can volatilize quickly, the bearing is worn out quickly, and the service life of the whole machine is reduced
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides an air inlet structure of an air compressor, which aims at solving the technical problems that: how to solve the problem of easy abrasion of the connecting rod bearing.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides an air compressor machine's inlet structure, includes the crankcase, its characterized in that has the inlet channel in the crankcase, the air inlet of inlet channel is linked together with the external world, the gas outlet of inlet channel is located the well lower part in the crankcase.
The air outlet of the air inlet channel of the structure is positioned at the middle lower part in the crankcase, so that the air inlet path of the air is longer, and the air inlet noise is reduced; in addition, outside air enters into the middle lower part in the crankcase through the air inlet channel, and when the air compressor works, the lower part of the connecting rod in the crankcase is subjected to heat dissipation and temperature reduction, so that the temperature of a bearing arranged at the lower end part of the connecting rod is reduced, volatilization of bearing grease is slowed down, abrasion of the bearing is reduced, and the service life of the whole machine is prolonged.
In the air inlet structure of the air compressor, the air inlet structure comprises an air inlet pipe, the air inlet pipe is internally provided with the air inlet channel, the crankcase is provided with a through hole, the air inlet pipe is arranged in the through hole in a penetrating mode, one end of the air inlet pipe is provided with the air outlet, and the air outlet is positioned at the middle lower portion in the crankcase. The structure adopts the air inlet pipe to penetrate through the crankcase, the air outlet end of the air inlet pipe is the air outlet of the air inlet channel, the air inlet pipe is provided with the air inlet channel, and the air inlet pipe is simple and convenient to install on the crankcase.
In the air inlet structure of the air compressor, the air compressor comprises a motor shaft positioned in the crankcase and a connecting rod with the lower end sleeved on the motor shaft, and an air outlet hole of the air inlet pipe is positioned below the lower end of the connecting rod. Because the venthole of intake pipe is located the below of connecting rod lower extreme, and external air enters into in the crankcase from the venthole of intake pipe, and gaseous upward flow flows the lower extreme of connecting rod, directly takes away the heat of the bearing of connecting rod lower extreme, plays the effect of heat dissipation cooling to the bearing, slows down the volatilization of bearing grease, and then reduces the wearing and tearing of bearing, has prolonged the life of complete machine.
In the air inlet structure of the air compressor, the crankcase is internally provided with a sound insulation enclosure surrounding the connecting rod. Through the setting of this structure, during operation of air compressor machine, transmission parts such as motor shaft, connecting rod during operation can produce the noise, and the fender encloses the connecting rod after, forms first sound insulation, and the crankcase is closed box, forms the second and gives sound insulation, further reduces the noise of whole air compressor machine during operation.
In the air inlet structure of the air compressor, the crankcase comprises an end cover, the sound insulation surrounding baffle comprises an inner surrounding baffle arranged on the inner wall of the crankcase and surrounding the connecting rod and an outer surrounding baffle arranged on the end cover, and the inner surrounding baffle is buckled with the outer surrounding baffle. Through the setting of this structure, interior fender and peripheral fender looks lock joint form sealed sound insulation and enclose fender, have better sound insulation effect.
In the air inlet structure of the air compressor, the air inlet pipe is located at the periphery of the sound insulation surrounding block, the bottom end of the sound insulation surrounding block is provided with the air outlet notch, and the air outlet notch is located below the lower end of the connecting rod. The gas enters into the crankcase around the sound insulation enclosure from the air outlet hole of the air inlet pipe, then enters into the sound insulation enclosure from the air outlet notch, and the gas takes away the heat of the connecting rod bearing in the rising process.
In the air inlet structure of the air compressor, the through hole is formed in the top of the crankcase. Because the intake pipe wears to establish in the through-hole, and then the intake pipe wears to establish in the top position of crankcase, the intake pipe is inside to extend to the bottom position of crankcase downwards at the crankcase for the length of intake pipe is longer, is favorable to the air intake of air compressor machine to fall and falls.
The air compressor comprises a motor shaft positioned in a crank case and a connecting rod with the lower end sleeved on the motor shaft, wherein the air outlet is positioned below the lower end of the connecting rod.
In the air inlet structure of the air compressor, the two crank cases are arranged, and the tops of the two crank cases are communicated through the connecting pipe. Through the setting of this structure, outside air enters into one of them crankcase through the intake pipe, enters into another crankcase from the connecting pipe again, realizes the air inlet of two crankcases.
Compared with the prior art, the air inlet structure of the air compressor has the following advantages: the air outlet of the air inlet channel of the structure is positioned at the middle lower part in the crankcase, so that the air inlet path of the air is longer, and the air inlet noise is reduced; in addition, outside air enters into the middle lower part in the crankcase through the air inlet channel, and when the air compressor works, the lower part of the connecting rod in the crankcase is subjected to heat dissipation and temperature reduction, so that the temperature of a bearing arranged at the lower end part of the connecting rod is reduced, volatilization of bearing grease is slowed down, abrasion of the bearing is reduced, and the service life of the whole machine is prolonged.
Drawings
Fig. 1 is a schematic perspective view of a removable intake pipe for a crankcase in accordance with the utility model.
Fig. 2 is one of the schematic exploded construction views of the present utility model.
FIG. 3 is a second schematic diagram of the explosive structure of the present utility model.
Fig. 4 is a side view of the utility model with the end cap removed.
Fig. 5 is a schematic cross-sectional structure of the present utility model.
Fig. 6 is a schematic perspective view of embodiment 4 of the present utility model.
Fig. 7 is a schematic cross-sectional structure of embodiment 4 of the present utility model.
In the figure, 1, a crank case; 2. a through hole; 3. an air inlet pipe; 4. a motor shaft; 5. a connecting rod; 6. an end cap; 60. a peripheral shield; 7. an inner peripheral baffle; 8. a connecting pipe; 9. an air outlet notch; 10. an air intake passage; 10a, an air inlet; 10b, an air outlet.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Example 1
As shown in fig. 1 to 4, in the air intake structure of the air compressor, an air intake passage 10 is provided in a crankcase 1, an air inlet 10a of the air intake passage 10 is communicated with the outside, an air outlet 10b of the air intake passage 10 is positioned at the middle lower part in the crankcase 1, specifically, the air intake structure comprises the crankcase 1 with a through hole 2 and an air inlet pipe 3 penetrating through the through hole 2, a sealing ring is arranged at the through hole 2 and is matched with the air inlet pipe 3 to realize sealing, air leakage is avoided, the through hole 2 is arranged at the top position of the crankcase 1, the air outlet 10b of the air inlet pipe 3 extends to the middle lower part in the crankcase 1, the air inlet passage 10 is provided in the air inlet pipe 3, one end of the air inlet pipe 3 is the air inlet 10a, and the other end of the air inlet pipe 3 is the air outlet 10b.
In this embodiment, the air compressor comprises a motor shaft 4 positioned in the crankcase 1 and a connecting rod 5 with the lower end sleeved on the motor shaft 4, and the air outlet 10b is positioned below the lower end of the connecting rod 5. The air inlet pipe 3 of the structure penetrates from the top of the crankcase 1 and extends to the bottom position in the crankcase 1, so that the length of the air inlet pipe 3 is longer, the air inlet path of air is prolonged, and further the air inlet noise is reduced; in addition, after the gas outlet 10b stretches to the bottom in the crankcase 1, outside air enters the bottom in the crankcase 1 through the gas inlet pipe 3, and when the air compressor works, gas at the bottom in the crankcase 1 rises and directly takes away the heat of the connecting rod 5 bearing, so that the bearing has the effects of directly radiating and cooling, the volatilization of bearing grease is slowed down, the abrasion of the bearing is further reduced, and the service life of the whole machine is prolonged.
As shown in fig. 2 to 5, a sound insulation enclosure surrounding the connecting rod 5 is arranged on the periphery of the connecting rod 5 in the crankcase 1, in this embodiment, the crankcase 1 includes an end cover 6, the sound insulation enclosure includes an inner enclosure 7 arranged on the inner wall of the crankcase 1 and surrounding the connecting rod 5 and an outer enclosure 60 arranged on the end cover 6, the inner enclosure 7 is fastened with the outer enclosure 60, a sealing gasket is arranged at the fastening part of the inner enclosure 7 and the outer enclosure 60, sealing of the joint is realized, a good sound insulation effect is achieved, the air inlet pipe 3 is positioned on the periphery of the outer enclosure 60 or/and the inner enclosure 7, and an air outlet notch 9 is formed at the bottom end of the outer enclosure 60 or/and the inner enclosure 7. When the air compressor works, noise is generated when transmission parts such as a motor shaft 4, a connecting rod 5 and the like work, after the connecting rod 5 is surrounded by the sound insulation enclosure, a first sound insulation is formed, the crankcase 1 is a closed type box body, a second sound insulation is formed, the noise of the whole air compressor in work is further reduced, in addition, gas enters the crankcase 1 with the sound insulation enclosure periphery from the air outlet 10b, then the gas enters the sound insulation enclosure from the air outlet notch 9, and the heat of the connecting rod bearing is taken away in the rising process of the gas. The crank cases 1 are provided with two, and the tops of the two crank cases 1 are communicated through a connecting pipe 8.
Example 2
This embodiment is basically the same as the above embodiment 1 except that: the crankcase 1 comprises an end cover 6, a sound insulation fence is arranged on the inner wall of the crankcase 1, and the outer end of the sound insulation fence abuts against the inner side wall of the end cover 6.
Example 3
This embodiment is basically the same as the above embodiment 1 except that: according to the structure, the sound insulation surrounding shield surrounding the connecting rod 5 is arranged inside the crankcase 1, the air inlet channel 10 is formed between the sound insulation surrounding shield and the inner side wall of the crankcase 1, the air inlet hole communicated with the air inlet channel 10 is formed in the top of the crankcase 1, the air outlet notch 9 is formed in the bottom of the sound insulation surrounding shield, the air outlet notch 9 is located below the lower end of the connecting rod 5, when the air compressor works, air enters from the top of the crankcase 1 and then enters the crankcase 1 inside the sound insulation surrounding shield from the air outlet, heat of a connecting rod bearing is taken away, the temperature of the connecting rod bearing is reduced, volatilization of bearing grease is slowed down, abrasion of the bearing is further reduced, the service life of the whole machine is prolonged, and meanwhile, the setting of the sound insulation surrounding shield also has the effect of double sound insulation, and working noise of the air compressor is reduced.
Example 4
As shown in fig. 6 and 7, in the present embodiment, an intake passage 10 is provided through the interior of a crankcase 1, the crankcase 1 includes a case body, an end cover 6, and the like, an intake port 10a of the intake passage 10 is provided on the end cover 6, and an exhaust port 10b of the intake passage 10 communicates with the bottom of the crankcase 1.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (9)
1. The utility model provides an air inlet structure of air compressor machine, includes crankcase (1), its characterized in that has air inlet channel (10) in crankcase (1), air inlet (10 a) and the external world of air inlet channel (10) are linked together, air outlet (10 b) of air inlet channel (10) are located the well lower part in crankcase (1).
2. An air inlet structure of an air compressor according to claim 1, characterized in that the air inlet structure comprises an air inlet pipe (3), the air inlet pipe (3) is internally provided with the air inlet channel (10), the crankcase (1) is provided with a through hole (2), the air inlet pipe (3) is arranged in the through hole (2) in a penetrating way, one end of the air inlet pipe is provided with the air outlet (10 b), and the air outlet (10 b) is arranged at the middle lower part in the crankcase (1).
3. The air inlet structure of the air compressor according to claim 2, wherein the air compressor comprises a motor shaft (4) positioned in a crank case (1) and a connecting rod (5) with the lower end sleeved on the motor shaft (4), and the air outlet (10 b) is positioned below the lower end of the connecting rod (5).
4. An air intake structure of an air compressor according to claim 3, characterized in that the crankcase (1) has a sound-insulating enclosure surrounding the connecting rod (5).
5. An air intake structure of an air compressor according to claim 4, wherein the crankcase (1) includes an end cover (6), the sound insulation enclosure includes an inner enclosure (7) disposed on an inner wall of the crankcase (1) and enclosing the connecting rod (5), and an outer enclosure (60) disposed on the end cover (6), and the inner enclosure (7) is fastened to the outer enclosure (60).
6. The air inlet structure of the air compressor according to claim 4, wherein the air inlet pipe (3) is located at the periphery of the sound insulation enclosure, an air outlet notch (9) is formed in the bottom end of the sound insulation enclosure, and the air outlet notch (9) is located below the lower end of the connecting rod (5).
7. An air intake structure of an air compressor according to claim 2, characterized in that the through hole (2) is provided at the top position of the crankcase (1).
8. The air inlet structure of the air compressor according to claim 1, wherein the air compressor comprises a motor shaft (4) positioned in a crank case (1) and a connecting rod (5) with the lower end sleeved on the motor shaft (4), and the air outlet (10 b) is positioned below the lower end of the connecting rod (5).
9. An air intake structure of an air compressor according to claim 1, characterized in that the crank cases (1) have two, and the tops of the two crank cases (1) are communicated with each other through a connecting pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321529175.2U CN220667770U (en) | 2023-06-15 | 2023-06-15 | Air inlet structure of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321529175.2U CN220667770U (en) | 2023-06-15 | 2023-06-15 | Air inlet structure of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220667770U true CN220667770U (en) | 2024-03-26 |
Family
ID=90342336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321529175.2U Active CN220667770U (en) | 2023-06-15 | 2023-06-15 | Air inlet structure of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220667770U (en) |
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2023
- 2023-06-15 CN CN202321529175.2U patent/CN220667770U/en active Active
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| GR01 | Patent grant | ||
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