CN220581264U - Rotor seat structure of air compressor - Google Patents

Abstract

The utility model discloses a rotor seat structure of an air compressor, which comprises a rotor seat, wherein a male rotor is arranged at the right end of the inner side of the rotor seat, and a female rotor is arranged at the left end of the inner side of the rotor seat.

Description

Rotor seat structure of air compressor

Technical Field

The utility model relates to the technical field of air compressors, in particular to an air compressor rotor seat structure.

Background

The vehicle-mounted screw air compressor is mainly used for conveying granular materials such as cement, lime powder and feed, is a common conveying device on mines, chemical plants and canned vehicles and ships, is continuously sprayed with oil from a cavity in the past screw air compressor to lubricate and cool a screw, so that an oil-gas mixture is generated, oil-free compressed air is required to be separated through an oil-gas separation device, oil and gas cannot be completely separated though the oil-gas separation device, the environment is polluted, and the working process of the dry screw air compressor can be divided into an air suction process, a compression process and an exhaust process.

The inspiration process comprises the following steps: along with the movement of the rotor, teeth of the male rotor are continuously separated from tooth grooves of the female rotor, at the moment, the tooth space volume is continuously enlarged, a certain vacuum is formed inside the tooth space volume, at the moment, the tooth space volume is only communicated with the air suction port, air flows in under the action of pressure difference, when the rotor rotates to the maximum tooth space volume, the tooth space volume is disconnected with the air suction port, the air suction process is finished, simultaneously, tooth tops of the rotor are sealed with a rotor cavity, and air in the tooth grooves is sealed inside, namely, the sealing process is realized.

The compression process comprises the following steps: as the rotor rotates, the inter-tooth volume decreases as the teeth mesh, and the gas increases in pressure as the volume decreases, this process continues until the inter-tooth volume communicates with the exhaust port, i.e., the compression process.

And (3) exhausting: after the inter-tooth volume is communicated with the exhaust port, the inter-tooth volume is continuously reduced along with the continuous rotation of the rotor, high-pressure gas is continuously discharged from the exhaust port until the pair of teeth are in a fully meshed state, and the gas is completely discharged when the inter-tooth volume is in a minimum state, namely, the exhaust process.

The existing screw air compressor has the problems that the tightness is not strong, the area cannot be completely avoided due to the fact that a rotor seat and an air suction flange are of a split type structure, an axial air suction opening is small, the exhaust capacity is affected, in addition, a bearing on a rotor is arranged in a bearing seat, the end face is close to a gear, and no enough gap is left for contacting engine oil, so that abrasion is aggravated, local high temperature is caused, and the operation of the whole compressor is affected.

Disclosure of Invention

The utility model aims to provide a rotor seat structure of an air compressor, which aims to solve the problems that the prior screw air compressor is provided in the background art, because a rotor seat and an air suction flange adopt a split type structure, the sealing performance is not strong, the area cannot be completely avoided, an axial air suction opening is smaller, the exhaust capacity is influenced, and in addition, a bearing on the rotor is arranged in a bearing seat, the end face is abutted against a gear, and no enough gap is contacted with engine oil, so that the abrasion is aggravated, the local high temperature is caused, and the operation of the whole machine is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an air compressor machine rotor seat structure, includes the rotor seat, the inboard right-hand member of rotor seat is provided with the male rotor, the inboard left end of rotor seat is provided with the female rotor, the end department of male rotor and female rotor is provided with the oil pump, another end department of male rotor and female rotor is provided with the gear box, the inboard of gear box is provided with the rotation gear, be equipped with the oil duct in the passageway of inhaling of rotor seat, just after the oil pump pressurization, oil flows in from the left end face of second oil circuit, flows out to bearing department through first oil circuit, second oil circuit and third oil circuit.

The male rotor is three teeth, the female rotor is five teeth, the lead of the female rotor is twice the tooth length, the connecting line of curve planes of the two rotors can be roughly considered as a distinguishing surface, the upper part is meshed with the rotor along with rotation of the rotor to form high pressure, the upper part is used as an exhaust end, and the lower part is separated from each other along with rotation of the rotor to be used as an air suction port.

The device comprises an air suction hole streamline airflow passage opening, wherein the air suction hole streamline airflow passage opening and an air discharge opening are exactly distributed in a diagonal line, the air suction hole streamline airflow passage opening is positioned at the end part of a low-pressure area, and the air discharge opening is positioned at the end part of a high-pressure area.

The rotor comprises a rotor cavity, wherein the airflow channels of the rotor cavity are respectively the same as the torsion angles of the male rotor and the female rotor and are streamline.

In summary, the beneficial effects of the utility model are as follows due to the adoption of the technology:

1. in the utility model, the air suction ports and the air discharge ports are distributed in a diagonal way, the air suction ports are positioned at the end part of the low-pressure area, the air discharge ports are positioned at the end part of the high-pressure area, the air flow channels of the rotor cavity are respectively identical with the torsion angles of the male rotor and the female rotor and are in streamline form, the air flow channels are arranged outside the rotor meshing area, the possibility of leakage between the air suction and the air discharge is avoided, the maximum air suction amount can be ensured, the stable transportation of air flow is ensured by the torsion angles identical with the rotor, the change of air pressure value is reduced, and the streamline design can effectively reduce noise.

2. According to the utility model, the oil passage is additionally arranged in the air suction passage of the rotor seat, so that oil at the oil pump end flows into the bearing at the other end through the oil passage, the lubrication at the bearing is increased, the heat dissipation of the bearing is also facilitated, and the working time of the whole machine is prolonged.

Drawings

FIG. 1 is a schematic view of the overall sectional structure of a rotor seat structure of an air compressor;

fig. 2 is a schematic diagram of a rotor seat structure of an air compressor rotor seat structure according to the present utility model;

FIG. 3 is a top cut-away view of a rotor seat of an air compressor rotor seat structure according to the present utility model;

FIG. 4 is a side view of a rotor seat in a rotor seat structure of an air compressor according to the present utility model;

fig. 5 is a front sectional view of a rotor seat structure of an air compressor according to the present utility model.

In the figure: 1. a rotor seat; 2. a male rotor; 3. a female rotor; 4. an air suction port; 5. a streamlined air flow passage; 6. a first oil passage; 7. a second oil path; 8. a third oil passage; 9. a gear box; 10. rotating the gear; 11. an oil pump.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Examples

Referring to fig. 1, 2, 3, 4 and 5, an air compressor rotor seat structure comprises a rotor seat 1, wherein a male rotor 2 is arranged at the right end of the inner side of the rotor seat 1, a female rotor 3 is arranged at the left end of the inner side of the rotor seat 1, an oil pump 11 is arranged at the end of the male rotor 2 and the female rotor 3, a gear box 9 is arranged at the other end of the male rotor 2 and the female rotor 3, a rotary gear 10 is arranged at the inner side of the gear box 9, since the male rotor 2 has three teeth, the female rotor 3 has five teeth, the lead of the female rotor 3 is twice the tooth length, the connection between the curved planes of the two rotors can be roughly considered as a dividing plane, the upper part is engaged with the rotation of the rotors to form high pressure, the lower part is separated from each other as the exhaust end is rotated with the rotation of the rotors, the suction port 4, according to the relationship that the lead is twice of the tooth length, the mouth of the streamline airflow passage 5 of the air suction hole and the vent hole are exactly distributed in a diagonal line, the mouth of the streamline airflow passage 5 of the air suction hole is positioned at the end part of the low pressure area, the vent hole is positioned at the end part of the high pressure area, according to the relationship that the lead is twice of the tooth length, the mouth of the streamline airflow passage 5 of the air suction hole and the vent hole are exactly distributed in a diagonal line, in this way, when in use, the streamline airflow passage 5 is arranged outside the meshing area of the male rotor 2 and the female rotor 3, thereby avoiding the possibility of leakage between the suction and the exhaust, ensuring the maximum suction amount, the same torsion angle as the rotor ensures the stable transportation of air flow, reduces the change of air pressure value, can effectively reduce noise by streamline design, adds an oil duct in the air suction channel of the rotor seat 1, the oil at the end of the oil pump 11 can flow into the bearing at the other end through the oil duct, so that the lubrication at the bearing is increased, the heat dissipation of the bearing can be also facilitated, and the working time of the whole machine is prolonged.

In the utility model, the male rotor 2 is three teeth, the female rotor 3 is five teeth, the lead of the female rotor 3 is twice the tooth length, the connecting line of the curve planes of the two rotors can be roughly considered as a distinguishing surface, the upper part is meshed with the rotation of the rotors to form high pressure, the lower part is used as an exhaust end, the lower part is separated from each other along with the rotation of the rotors, and the air suction port streamline airflow channel 5 and the exhaust port are exactly distributed diagonally according to the relationship of twice the lead of the tooth length, the air suction port streamline airflow channel 5 is positioned at the end of a low pressure area, the air suction port streamline airflow channel 5 and the exhaust port are exactly distributed diagonally according to the relationship of twice the lead of the tooth length, the air suction port streamline airflow channel 5 is positioned at the end of the low pressure area, and the air flow channel of a rotor cavity is respectively identical with the torsion angle of the male rotor 2 and the female rotor 3 and is streamline, so that when the rotor is used, the air flow channel 5 is arranged outside the meshing area of the male rotor 2 and the female rotor 3, the possibility of generating leakage between the suction and the exhaust is avoided, the maximum stable and the same air flow can be guaranteed, the torsion angle is guaranteed, and the noise is reduced, and the air pressure is effectively reduced.

In the utility model, an oil passage is arranged in an air suction passage of a rotor seat 1, oil flows in from the left end face of a second oil passage 7 after being pressurized by an oil pump 11, flows out to a bearing through a first oil passage 6, a second oil passage 7 and a third oil passage 8, as shown in fig. 3, 4 and 5, when the oil pump 11 is used, after being pressurized, the oil flows in from the left end face of the second oil passage 7, flows out to the bearing through the first oil passage 6, the second oil passage 7 and the third oil passage 8, so that lubrication and heat dissipation at the bearing are increased, the heat dissipation of the bearing is also facilitated, and the working time of the whole machine is prolonged.

Working principle: when the rotor is used, the male rotor 2 is three teeth, the female rotor 3 is five teeth, the lead of the female rotor 3 is twice the tooth length, the connecting line of the curve planes of the two rotors can be roughly considered as a distinguishing surface, the upper part is meshed with the rotation of the rotor to form high pressure, the lower part is used as an exhaust end, the lower part is separated from each other along with the rotation of the rotor and used as an air suction port 4, according to the relationship of twice the tooth length of the lead, the mouth of the streamline airflow channel 5 of the air suction hole and the air discharge port are exactly distributed diagonally, according to the relationship of twice the tooth length of the lead, the streamline airflow channel 5 of the air suction hole and the air discharge port are arranged outside the meshing area of the male rotor 2 and the female rotor 3, so that the possibility of leakage is avoided, the maximum air suction quantity is ensured, the same torsion angle as the rotor ensures the airflow delivery, the air pressure value is reduced, the noise is effectively reduced, the air pump is increased in the air suction channel 1, the air pump is enabled to flow into the air pump through the bearing at the other end, the working time of the bearing is prolonged, and the working time of the whole bearing is prolonged.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (4)

1. The utility model provides an air compressor machine rotor seat structure, includes rotor seat (1), its characterized in that: the novel oil pump is characterized in that a male rotor (2) is arranged at the right end of the inner side of the rotor seat (1), a female rotor (3) is arranged at the left end of the inner side of the rotor seat (1), an oil pump (11) is arranged at the ends of the male rotor (2) and the female rotor (3), a gear box (9) is arranged at the other ends of the male rotor (2) and the female rotor (3), a rotating gear (10) is arranged at the inner side of the gear box (9), an oil duct is arranged in an air suction channel of the rotor seat (1), and after the oil pump (11) is pressurized, oil flows in from the left end face of a second oil way (7) and flows out to a bearing through a first oil way (6), a second oil way (7) and a third oil way (8).

2. The air compressor rotor seat structure according to claim 1, wherein: the male rotor (2) is three teeth, the female rotor (3) is five teeth, the lead of the female rotor (3) is twice the tooth length, the connecting line of the curve planes of the two rotors can be roughly considered as a distinguishing surface, the upper part is meshed with the rotation of the rotors to form high pressure as an exhaust end, and the lower part is separated from each other as an air suction port (4) along with the rotation of the rotors.

3. The air compressor rotor seat structure according to claim 2, wherein: the device comprises an air suction hole streamline airflow channel (5), wherein the openings of the air suction hole streamline airflow channel (5) and the air discharge openings are distributed in a diagonal line, the openings of the air suction hole streamline airflow channel (5) are positioned at the end part of a low-pressure area, and the air discharge openings are positioned at the end part of a high-pressure area.

4. The air compressor rotor seat structure according to claim 1, wherein: comprising a rotor chamber, the air flow channels of which are respectively the same as the torsion angles of the male rotor (2) and the female rotor (3) and are streamlined.