CN213981250U

CN213981250U - Vacuum pump

Info

Publication number: CN213981250U
Application number: CN202022375858.XU
Authority: CN
Inventors: 顾峰; 顾杰; 顾为俊
Original assignee: Yancheng Haihe Pump Co ltd
Current assignee: Yancheng Haihe Pump Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-08-17
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a vacuum pump, which comprises a pump body, air induction chamber, gear room, motor room and air outlet duct have been seted up in the pump body respectively, air induction chamber, motor room link up each other with the air outlet duct, the bottom welding of air induction chamber has the ash blocking net, the indoor fixed motor that is provided with of motor, the output shaft of motor runs through the inner wall welding between motor room and the gear room and has the main shaft, the top welding of main shaft has first gear, first gear engagement has the second gear, the center of rotation department welding of second gear has the fan axle, the fan axle runs through the inner wall between gear room and the air induction chamber and stretches to the inside of gear room. The utility model discloses can carry out the in-process of work at the vacuum pump and cool down the motor, avoid the motor to produce great heat and shorten its life in work to can block the entering of dust, avoid the dust to get into and accelerate the ageing of vacuum pump inner structure, shorten its life.

Description

Vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field especially relates to a vacuum pump.

Background

Vacuum pumps are devices for improving, creating and maintaining vacuum in a closed space by various methods, and are devices or apparatuses for obtaining vacuum by mechanically, physically, chemically or physico-chemically pumping a pumped container, and can be basically classified into two types, i.e., a gas trap pump and a gas transfer pump, according to the operating principle of the vacuum pumps. But current vacuum pump is bleeding the in-process because the motor will produce fast-speed rotation, can produce certain heat for the life-span of motor reduces, and at the in-process of bleeding, because the entering of dust, can make the structure in the vacuum pump receive the pollution, and is ageing with higher speed, shortens the life of vacuum pump, based on this, this practical design vacuum pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a vacuum pump.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a vacuum pump, includes the pump body, air induction chamber, gear room, motor room and air outlet duct have been seted up respectively in the pump body, air induction chamber, motor room and air outlet duct link up each other, the bottom welding of air induction chamber has the ash blocking net, the motor indoor fixation is provided with the motor, the inner wall welding that the output shaft of motor runs through between motor room and the gear room has the main shaft, the top welding of main shaft has first gear, first gear is located the gear room, first gear engagement has the second gear, the center of rotation department welding of second gear has the fan shaft, the fan shaft runs through the inner wall between gear room and the air induction chamber and stretches to the inside of gear room, disc and fan have been welded respectively in the direction that the fan shaft is close to the ash blocking net, the symmetric welding has two wedges on the disc, the lateral wall symmetric welding of air induction chamber has the fixed block, two equal sliding connection of fixed block has the slide bar, the slide bar welding has the limiting plate, two all the cover is equipped with the spring on the slide bar, the one end of spring all offsets with the fixed block, and the other end all offsets with the limiting plate, two the ball has all been welded to the bottom of slide bar.

Preferably, the limiting plate is located above the fixing block, the sliding rod penetrates through the limiting plate and extends out in the direction close to the disc, and the top end of the sliding rod is arc-shaped.

Preferably, the size of the first gear is larger than that of the second gear, and the two small balls are made of steel.

Preferably, exhaust duct one end link up with induced air room, and the other end links up with the external world, two the through-hole has all been seted up to the fixed block, the slide bar passes through-hole and fixed block sliding connection.

The utility model has the advantages that: the damage probability that the motor takes place has been reduced to the wind that introduces passes through the motor room when passing through the air-out pipeline, makes to cool down the motor, avoids the motor because produce great heat, and the aggravation damages, reduces its life. Through setting up disc, wedge, fixed block, slide bar, hindering grey net isotructure for get into and reach the effect of dust removal to the wind that gets into the induced air chamber, avoid producing because the two pairs of motors of the entering of dust destroy, and the bobble can be under the effect of wedge the intermittent type beat to hindering grey net, avoid the dust to block up the mesh, influence the effect of induced air.

Drawings

Fig. 1 is a schematic structural diagram of a vacuum pump according to the present invention;

fig. 2 is a schematic structural view of the air inducing chamber provided by the present invention;

fig. 3 is a top view of the gear chamber according to the present invention.

In the figure: the device comprises a pump body 1, an air induction chamber 2, a gear chamber 3, a motor chamber 4, an air outlet channel 5, an ash blocking net 6, a motor 7, a main shaft 8, a first gear 9, a second gear 10, a fan shaft 11, a disc 12, a fan 13, a wedge block 14, a fixing block 15, a sliding rod 16, a limiting plate 17, a spring 18 and a ball 19.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3, a vacuum pump comprises a pump body 1, an air induction chamber 2, a gear chamber 3, a motor chamber 4 and an air outlet duct 5 are respectively arranged in the pump body 1, the air induction chamber 2, the motor chamber 4 and the air outlet duct 5 are communicated, an ash blocking net 6 is welded at the bottom of the air induction chamber 2, a motor 7 is fixedly arranged in the motor chamber 4, an output shaft of the motor 7 penetrates through the inner wall between the motor chamber 4 and the gear chamber 3 and is welded with a spindle 8, a first gear 9 is welded at the top end of the spindle 8, the first gear 9 is located in the gear chamber 3, the ash blocking net 6 is used for blocking external dust from entering during air induction, and the motor 7 is prevented from being polluted due to dust entering, so that the service life of the motor 7 is influenced by aging of the motor 7. The first gear 9 is meshed with a second gear 10, a fan shaft 11 is welded at the rotating center of the second gear 10, the fan shaft 11 penetrates through the inner wall between the gear chamber 3 and the air inducing chamber 2 and extends to the inside of the gear chamber 3, a disc 12 and a fan 13 are respectively welded on the fan shaft 11 in the direction close to the dust blocking net 6, two wedge blocks 14 are symmetrically welded on the disc 12, the fan shaft 11 rotates and can simultaneously drive the disc 12 and the fan 13 to rotate, so that the device can induce air on the one hand and the induced air is changed into vacuum on the other hand, the wedge blocks 14 rotate through the rotation of the disc 12, the sliding rod 16 can be extruded to realize the intermittent beating of the dust blocking net 6, the problem that the air inducing effect of the device is poor due to the blockage of dust is avoided, and the vacuum processing effect is poor. The lateral wall symmetrical welding of induced air chamber 2 has fixed block 15, the equal sliding connection of two fixed blocks 15 has slide bar 16, slide bar 16 welds there is limiting plate 17, all the cover is equipped with spring 18 on two slide bar 16, the one end of spring 18 all offsets with fixed block 15, the other end all offsets with limiting plate 17, pellet 19 has all been welded to the bottom of two slide bar 16, limiting plate 17 is used for spacing slide bar 16, because its bottom offsets with spring 18, consequently when receiving the extrusion of wedge 14, through the effect of spring 18, make pellet 19 and slide bar 16 resume to the normal position.

The limiting plate 17 is positioned above the fixed block 15, the sliding rod 16 penetrates through the limiting plate 17 and extends out in the direction close to the disc 12, the top end of the sliding rod 16 is arc-shaped, the wedge block 14 can conveniently extrude the sliding rod 16, the size of the first gear 9 is larger than that of the second gear 10, so that the rotation of the motor 7 is enlarged in the meshing transmission process of the first gear 9 and the second gear 10, the effect of inducing air by utilizing high rotating speed is better, the motor 7 is prevented from directly outputting high rotating speed, the motor 7 generates larger pressure, the probability of damage of the motor 7 is increased, the two small balls 19 are made of No. 45 steel, one end of the air outlet channel 5 is communicated with the air inducing chamber 2, the other end of the air outlet channel is communicated with the outside, the introduced air flows into the outside through the air outlet channel 5, and is cooled by the motor chamber 4 in the process, and the motor 7 in work is prevented from generating larger heat when the motor 7 works, reduce its life, through-hole has all been seted up to two fixed blocks 15, and slide bar 16 passes through-hole and fixed block 15 sliding connection.

The utility model discloses in, when the vacuum pump need carry out vacuum treatment, open motor 7, the output shaft of motor 7 will drive main shaft 8 and rotate, thereby make first gear 9 rotate, because first gear 9 meshes with second gear 10, consequently make second gear 10 rotate, in this process, the rotational speed increases, make the effect of induced air better, also avoided leading to the fact great high rotational speed pressure by the higher rotational speed of motor 7 direct output, increase the probability that motor 7 damaged, second gear 10 rotates this moment and makes fan 13 rotate, the process of induced air is carried out, the wind of being introduced will get into air flue 5 and discharge via motor room 4 through gear 3, in this process, can carry out the cooling of certain degree to motor 7 when via motor room 4, avoid motor 7 to produce great heat when working, influence the life of device.

In the process of induced air, most of dust can be blocked due to the action of the dust blocking net 6, the disc 12 rotates, the wedge blocks 14 on the disc can extrude the sliding rod 16 in a clearance mode, the small balls 19 knock the filter screen, and therefore the situation that the dust blocks the filter screen 19 to cause poor induced air effect and influence the work of the vacuum pump is avoided.

Claims

1. The utility model provides a vacuum pump, includes the pump body (1), its characterized in that, air induction chamber (2), gear room (3), motor room (4) and air outlet (5) have been seted up respectively in the pump body (1), air induction chamber (2), motor room (4) and air outlet (5) link up each other, the bottom welding of air induction chamber (2) has ash blocking net (6), motor room (4) internal fixation is provided with motor (7), the output shaft of motor (7) runs through the inner wall welding between motor room (4) and gear room (3) and has main shaft (8), the top welding of main shaft (8) has first gear (9), first gear (9) are arranged in gear room (3), first gear (9) meshing has second gear (10), the center of rotation department welding of second gear (10) has fan shaft (11), fan shaft (11) run through the inner wall between gear room (3) and air induction chamber (2) and stretch to the tooth to the fan shaft (11) Inside of round of room (3), it has disc (12) and fan (13) to weld respectively on fan shaft (11) is close to the direction of hindering grey net (6), symmetrical welding has two wedge (14) on disc (12), the lateral wall symmetrical welding of induction chamber (2) has fixed block (15), two equal sliding connection of fixed block (15) has slide bar (16), the welding of slide bar (16) has limiting plate (17), two all the cover is equipped with spring (18) on slide bar (16), the one end of spring (18) all offsets with fixed block (15), and the other end all offsets with limiting plate (17), two the bottom of slide bar (16) all welds bobble (19).

2. A vacuum pump according to claim 1, characterized in that the limit plate (17) is located above the fixed block (15), the slide rod (16) extends through the limit plate (17) and protrudes in a direction close to the disc (12), and the top end of the slide rod (16) is arc-shaped.

3. A vacuum pump according to claim 1, characterized in that the first gear wheel (9) has dimensions greater than those of the second gear wheel (10), and in that both said balls (19) are made of steel grade 45.

4. A vacuum pump according to claim 2, characterized in that one end of the air outlet duct (5) is communicated with the air intake chamber (2), the other end is communicated with the outside, both the fixing blocks (15) are provided with through holes, and the sliding rod (16) is slidably connected with the fixing blocks (15) through the through holes.