CN217873266U

CN217873266U - Large-displacement vacuum pump

Info

Publication number: CN217873266U
Application number: CN202220736834.9U
Authority: CN
Inventors: 赵登虎
Original assignee: Jiangsu Yisen Vacuum Equipment Co ltd
Current assignee: Jiangsu Yisen Vacuum Equipment Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-11-22
Anticipated expiration: 2032-03-31

Abstract

The utility model belongs to the technical field of vacuum pumps, in particular to a large-displacement vacuum pump, which comprises a pump body and a rotor, wherein the rotor is arranged in the pump body, a scraping blade is arranged at the front end in the pump body, an air inlet channel positioned in front of the scraping blade is arranged at the front end of the pump body, and a round platform-shaped cover and a conical cover are respectively embedded at the front side and the rear side in the air inlet channel; drive the pivot through the motor and rotate to let the doctor-bar constantly sweep inlet channel, conical cover and the cooperation of round platform shape cover are used, thereby can intercept the dust, through the filter screen, activated carbon piece and the cooperation of V-arrangement screen panel are used, can absorb most dust to the greatest extent, solved current vacuum pump can be because the dust that mix with in the air current can pile up at air inlet and gas outlet, the dust still can enter into vacuum chamber along with the air current inside, thereby can influence the problem that the vacuum pump normally operates.

Description

Large-displacement vacuum pump

Technical Field

The utility model belongs to the technical field of the vacuum pump, especially, relate to a large discharge vacuum pump.

Background

The vacuum pump is a mechanical device which uses mechanical, physical, chemical or physicochemical methods to pump the pumped container so as to make the pumped container obtain vacuum, and different types of vacuum pumps are used according to different working pressure ranges and different working requirements. With the increasingly wider requirements of the application pressure range of the vacuum technology in the production and scientific research fields, vacuum pumps are widely applied to the production industry of modern industries, and many modern factories are equipped with corresponding vacuum pumps as one of necessary devices for generating vacuum environments.

At present, a corresponding protective facility is lacked at an air inlet and an air outlet of a vacuum pump, dust in air flow blocks the air inlet and the air outlet, and even the dust in the air flow enters the interior of a vacuum chamber along with the air flow, so that the air suction and exhaust effects of the vacuum pump are influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a big discharge capacity vacuum pump, solved current vacuum pump can be because the dust that mix with in the air current can pile up at air inlet and gas outlet, dust still can enter into vacuum chamber inside along with the air current, thereby can influence the problem of vacuum pump normal operating.

The utility model provides a technical scheme that its technical problem adopted is: a large-displacement vacuum pump comprises a pump body and a rotor, wherein the rotor is arranged inside the pump body;

the pump comprises a pump body and is characterized in that a scraping blade is arranged at the front end inside the pump body, an air inlet channel positioned in front of the scraping blade is arranged at the front end of the pump body, a round table-shaped cover and a conical cover are respectively embedded at the front side and the rear side inside the air inlet channel, a round opening is formed in the middle of the round table-shaped cover, and a plurality of annular side openings are formed outside the conical cover;

the air intake device comprises a pump body and is characterized in that a filter box located in front of an air intake channel is arranged at the front end of the pump body, a pair of containing cavities are formed in the filter box, a push-pull box is arranged in each containing cavity, a pair of round holes are formed in the front end and the rear end of each push-pull box respectively, a filter screen is embedded in each round hole, an activated carbon block and a V-shaped mesh enclosure are embedded in each push-pull box respectively, the activated carbon blocks are located on the inner sides of the V-shaped mesh enclosures, and a plurality of ventilation holes are formed in the outer portions of the activated carbon blocks.

The utility model discloses in the technical scheme of preferred, the rotor middle part alternates and is provided with the pivot of lining up out pump body rear end, rotor middle-end and pivot fixed connection, the motor of transmission connection at the pivot rear end is installed to pump body rear end, the doctor-bar is located pivot the place ahead, pivot front end and doctor-bar middle-end fixed connection, doctor-bar front end and inlet channel rear end in close contact with.

The utility model discloses in the technical scheme of preferred, the round mouth is located a plurality ofly between the side mouth, inlet channel communicates with each other with the pump body is inside.

The utility model discloses among the technical scheme of preferred, pump body left end is provided with and is located left L venturi tube behind the filter cartridge, L venturi tube rear end extends to the pump body inside and rather than communicating with each other, the filter cartridge rear end has a pair ofly and accomodates the communicating connecting pipe in intracavity portion through flange joint, the left end connecting pipe rear end passes through flange joint, right-hand member with L venturi tube front end connecting pipe rear end passes through flange joint with the inlet channel front end.

The utility model discloses in the technical scheme of preferred, there is a pair of air duct filter cartridge front end through flange joint, the air duct communicates with each other with accomodating intracavity portion.

The utility model discloses in the technical scheme of preferred, the push-and-pull box upper end is inlayed and is had the curb plate, filter cartridge upper end is inlayed and is had the apron that is located the curb plate top.

Compared with the prior art, the utility model discloses the beneficial effect who realizes as follows:

1. the motor drives the rotating shaft to rotate, so that the scraping blade continuously sweeps the air inlet channel, dust can be prevented from being accumulated on the edge of the air inlet channel, and the smoothness of the air inlet channel is effectively kept;

2. the conical cover and the circular table-shaped cover are matched for use, so that dust can be intercepted, the side opening and the circular opening can ensure that air flow circulates in the air inlet channel, and dust is reduced to flow into the pump body from the air inlet channel along with the air flow;

3. the filter screen, the activated carbon blocks and the V-shaped mesh enclosure are matched for use, so that the airflow air guide pipe is communicated with the connecting pipe, airflow flowing through the interior of the filter box can be purified, and most of dust can be absorbed to the greatest extent;

4. the push-pull box can encapsulate activated carbon block and V-arrangement screen panel, uses through apron and curb plate cooperation to can seal the push-pull box in the intracavity portion of accomodating of filter cartridge, and take off apron and curb plate in proper order and can change activated carbon block and V-arrangement screen panel, thereby take off the push-pull box and can change the filter screen of round hole inside, be favorable to clearing up accumulational dust.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a top view of the internal structure of the pump body according to the present invention;

FIG. 3 is a diagram showing the splitting effect of the internal structure of the filter cartridge of the present invention;

FIG. 4 is a schematic view of the inner structure of the push-pull box of the present invention;

fig. 5 is a schematic view of the external structure of the conical cover and the truncated cone cover of the present invention.

In the figure: 1-pump body, 2-air inlet channel, 3-conical cover, 4-round table cover, 5-side port, 6-round port, 7-scraper, 8-rotating shaft, 9-motor, 10-L-shaped pipe, 11-connecting pipe, 12-cover plate, 13-side plate, 14-containing cavity, 15-filter box, 16-air duct, 17-push-pull box, 18-round hole, 19-filter screen, 20-activated carbon block, 21-V-shaped net cover, 22-vent hole and 23-rotor.

Detailed Description

Referring to fig. 1-5, the present invention provides a technical solution: a large-displacement vacuum pump comprises a pump body 1 and a rotor 23, wherein the rotor 23 is arranged inside the pump body 1;

the pump body 1 is internally provided with a scraping blade 7 at the front end, the front end is provided with an air inlet channel 2 positioned in front of the scraping blade 7, the front side and the rear side in the air inlet channel 2 are respectively embedded with a truncated cone-shaped cover 4 and a conical cover 3, the middle part of the truncated cone-shaped cover 4 is provided with a round opening 6, and the outer part of the conical cover 3 is provided with a plurality of annular side openings 5;

the front end of the pump body 1 is provided with a filter box 15 positioned in front of the air inlet channel 2, a pair of containing cavities 14 are formed in the filter box 15, a push-pull box 17 is arranged in each containing cavity 14, a pair of round holes 18 are formed in the front end and the rear end of the push-pull box 17, a filter screen 19 is embedded in each round hole 18, an activated carbon block 20 and a V-shaped mesh enclosure 21 are respectively embedded in the push-pull box 17, the activated carbon block 20 is positioned on the inner side of the V-shaped mesh enclosure 21, and a plurality of vent holes 22 are formed in the outer portion of the activated carbon block 20;

the left end of the pump body 1 is provided with an L-shaped pipe 10 positioned at the rear left side of the filter box 15, the rear end of the L-shaped pipe 10 extends into the pump body 1 and is communicated with the pump body, the rear end of the filter box 15 is connected with a pair of connecting pipes 11 communicated with the interior of the containing cavity 14 through flanges, the rear end of the connecting pipe 11 at the left end is connected with the front end of the L-shaped pipe 10 through a flange, and the rear end of the connecting pipe 11 at the right end is connected with the front end of the air inlet channel 2 through a flange;

the front end of the filter box 15 is connected with a pair of air ducts 16 through flanges, and the air ducts 16 are communicated with the interior of the containing cavity 14;

the ventilation holes 22 ensure that air flow can flow in the activated carbon block 20, harmful gas mixed in the air flow is favorably adsorbed by the activated carbon block 20, dust passes through the V-shaped mesh enclosure 21 and is gradually accumulated at the corner of the V-shaped middle part of the inner side of the V-shaped mesh enclosure 21 due to the V-shaped shape of the V-shaped mesh enclosure 21, so that the dust can be concentrated at the middle part of the V-shaped mesh enclosure 21, a certain filtering space can be arranged at the left side and the right side of the V-shaped mesh enclosure 21, the dust in the air flow can be filtered, and the air flow guide pipe 16 is communicated with the connecting pipe 11 through the matching of the filter screen 19, the activated carbon block 20 and the V-shaped mesh enclosure 21;

the airflow enters the filter box 15 from the right air duct 16 and then enters the right containing cavity 14, passes through the right filter screen 19 and the right push-pull box 17, and sequentially passes through the right active carbon block 20 and the V-shaped mesh enclosure 21, so that the airflow flowing through the filter box 15 can be purified, and most of dust can be absorbed to the greatest extent;

the round openings 6 are positioned among the plurality of side openings 5, the air inlet channel 2 is communicated with the inside of the pump body 1, airflow flows out from the right containing cavity 14, the airflow enters the air inlet channel 2 through the right connecting pipe 11, because the conical cover 3 and the circular truncated cone-shaped cover 4 are placed in opposite directions, the airflow can only enter the space between the conical cover 3 and the circular truncated cone-shaped cover 4 from the round openings 6, due to the limitation of the shape of the circular truncated cone-shaped cover 4, part of dust is blocked on the outer surface of the circular truncated cone-shaped cover 4, part of dust enters the space between the conical cover 3 and the circular truncated cone-shaped cover 4 along with the airflow from the round openings 6, the side openings 5 are dispersed around the circle of the conical cover 3, part of dust can stay at the concave part in the center of the inner surface of the conical cover 3 along with the airflow, the conical cover 3 and the circular truncated cone-shaped cover 4 are matched for use, so that the dust can be intercepted, the side openings 5 and the round openings 6 can keep the airflow to circulate in the air inlet channel 2, the dust can be reduced from flowing into the air inlet channel 1 along with the airflow, when the dust is accumulated to a certain degree, the front end of the right end of the air inlet channel 11 is connected with the conical cover 2, and the connecting pipe 11, and the circular truncated cone-shaped cover 4, and the conical cover 3, and the lower end of the connecting pipe 11 can be taken out, and the conical cover 4, and the conical cover 3, and the lower end of the connecting pipe 4;

the middle part of the rotor 23 is inserted with a rotating shaft 8 penetrating out of the rear end of the pump body 1, the middle end of the rotor 23 is fixedly connected with the rotating shaft 8, the rear end of the pump body 1 is provided with a motor 9 which is in transmission connection with the rear end of the rotating shaft 8, the scraping blade 7 is positioned in front of the rotating shaft 8, the front end of the rotating shaft 8 is fixedly connected with the middle end of the scraping blade 7, the front end of the scraping blade 7 is in close contact with the rear end of the air inlet channel 2, the rotating shaft 8 is driven by the motor 9 to rotate, in the process that the rotating shaft 8 drives the rotor 23 to rotate, the air flow is ensured to flow into the pump body 1 by virtue of the air inlet channel 2, meanwhile, the rotating shaft 8 can drive the scraping blade 7 to rotate, so that the scraping blade 7 continuously sweeps the air inlet channel 2, thereby scraping off the residual dust on the surface of the end of the air inlet channel 2 positioned in the pump body 1, and preventing the dust from accumulating at the edge of the air inlet channel 2, thereby effectively keeping the air inlet channel 2 smooth;

when the air flow passes through the inside of the L-shaped pipe 10, the L-shaped pipe 10 facilitates the air flow to flow out, so that the air flow enters the connecting pipe 11 on the left side, enters the containing cavity 14 on the left side, passes through the filter screen 19 on the left side, enters the push-pull box 17 on the left side, and sequentially passes through the active carbon block 20 on the left side and the V-shaped mesh enclosure 21 on the left side, so that the air flow flowing out of the L-shaped pipe 10 can be filtered to remove dust, and the air flow flows out of the filter box 15 from the air duct 16 on the right side, and can also play a role in purifying the air flow;

the side plate 13 is inlaid at the upper end of the push-pull box 17, the cover plate 12 positioned above the side plate 13 is inlaid at the upper end of the filter box 15, the push-pull box 17 can encapsulate the activated carbon block 20 and the V-shaped mesh enclosure 21, the sealing performance of the filter box 15 and the push-pull box 17 is enhanced through the matching use of the cover plate 12 and the side plate 13, so that the push-pull box 17 can be sealed in the containing cavity 14 of the filter box 15, the activated carbon block 20 and the V-shaped mesh enclosure 21 can be replaced by sequentially taking down the cover plate 12 and the side plate 13, and the filter screen 19 in the round hole 18 can be replaced by taking down the push-pull box 17, thereby being beneficial to clearing accumulated dust;

according to the above description, the air duct 16, the filter box 15, the connecting pipe 11, the L-shaped pipe 10, the air inlet channel 2, the conical cover 3 and the circular truncated cone-shaped cover 4 form a complete circulation channel for air flow circulation to the pump body 1, and the filter screen 19, the activated carbon block 20, the V-shaped mesh enclosure 21, the conical cover 3 and the circular truncated cone-shaped cover 4 are used in combination, so that dust is intercepted without affecting the sealing performance of the pump body 1, and the push-pull box 17, the connecting pipe 11 at the right end, the filter screen 19, the activated carbon block 20, the V-shaped mesh enclosure 21, the conical cover 3 and the circular truncated cone-shaped cover 4 can be detached to clean dust on the surfaces thereof, so that air flow can be kept to circulate in the air inlet channel 2 and the filter box 15 respectively to the greatest extent, thereby not only preventing dust from entering the pump body 1, but also keeping air flow in the pump body 1, and being beneficial to keeping air flow circulation in the air flow in the vacuum pump, so that the circulation effect of air flow in the vacuum pump is not affected by dust in the vacuum pump and the final exhaust effect is not affected.

Claims

1. A large displacement vacuum pump, comprising a pump body (1) and a rotor (23), the rotor (23) being arranged inside the pump body (1), characterized in that:

the front end in the pump body (1) is provided with a scraping blade (7), the front end of the pump body (1) is provided with an air inlet channel (2) positioned in front of the scraping blade (7), the front side and the rear side in the air inlet channel (2) are respectively embedded with a round table-shaped cover (4) and a conical cover (3), the middle part of the round table-shaped cover (4) is provided with a round opening (6), and the outer part of the conical cover (3) is provided with a plurality of annular side openings (5);

the utility model discloses a pump body (1) front end is provided with filter cartridge (15) that are located inlet channel (2) the place ahead, filter cartridge (15) inside is opened has a pair of chamber (14) of accomodating, it pushes away and draws box (17) to accomodate chamber (14) inside being provided with, it has a pair of round hole (18) all to open at both ends around box (17) to push away to draw, round hole (18) inside is inlayed and is had filter screen (19), it has activated carbon piece (20) and V-arrangement screen panel (21) to push away to draw box (17) inside inlaying respectively, activated carbon piece (20) are located V-arrangement screen panel (21) inboard, a plurality of ventilation holes (22) have been seted up to activated carbon piece (20) outside.

2. A large displacement vacuum pump as defined in claim 1, wherein: the utility model discloses a scraper blade, including rotor (23), pump body (8), scraper blade (7), rotor (23) middle part alternates and is provided with pivot (8) that run through out pump body (1) rear end, rotor (23) middle part and pivot (8) fixed connection, motor (9) at pivot (8) rear end are installed in the transmission in pump body (1) rear end, scraper blade (7) are located pivot (8) the place ahead, pivot (8) front end and scraper blade (7) middle end fixed connection, scraper blade (7) front end and inlet channel (2) rear end in close contact with.

3. A large displacement vacuum pump as claimed in claim 1, wherein: the round openings (6) are positioned among the side openings (5), and the air inlet channel (2) is communicated with the interior of the pump body (1).

4. A large displacement vacuum pump as claimed in claim 1, wherein: the left end of the pump body (1) is provided with an L-shaped pipe (10) which is located on the rear side of the filter box (15), the rear end of the L-shaped pipe (10) extends to the inside of the pump body (1) and is communicated with the inside of the pump body, the rear end of the filter box (15) is connected with a pair of connecting pipes (11) which are communicated with the inside of the accommodating cavity (14) through flanges, the rear end of each connecting pipe (11) is connected with the front end of the L-shaped pipe (10) through a flange, and the rear end of each connecting pipe (11) is connected with the front end of the air inlet channel (2) through a flange.

5. A large displacement vacuum pump as defined in claim 1, wherein: the front end of the filter box (15) is connected with a pair of air ducts (16) through flanges, and the air ducts (16) are communicated with the inside of the containing cavity (14).

6. A large displacement vacuum pump as claimed in claim 1, wherein: a side plate (13) is inlaid at the upper end of the push-pull box (17), and a cover plate (12) located above the side plate (13) is inlaid at the upper end of the filter box (15).