CN111810408A

CN111810408A - High vacuum degree screw type vacuum pump

Info

Publication number: CN111810408A
Application number: CN202010710042.XA
Authority: CN
Inventors: 王顺朝
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-10-23

Abstract

The invention relates to the technical field of vacuum pumps, and discloses a high-vacuum-degree screw type vacuum pump which comprises a vacuum pump body, a shell and a circulation box, wherein the shell is sleeved on the outer wall of the vacuum pump body, the top surface of the shell is fixedly connected with the circulation box, a gap between the shell and the vacuum pump body and the circulation box are filled with cooling water, the vacuum pump body is cooled by utilizing a mode of packaging the cooling water in the shell through the arrangement of the shell, the vacuum degree of the vacuum pump body is not influenced, then the cooling water is pushed to flow in the shell and is circularly replaced with the cooling water in the circulation box through the arrangement of a cylinder A and the expansion generated after the cooling water absorbs heat as power, so that the temperature of the cooling water in the shell is always lower than the temperature of the vacuum pump body, the heat exchange function of the cooling water is ensured to improve the cooling effect of the vacuum pump body, and no additional circulating, so that the installation environment of the pump body is reduced to a limited extent.

Description

High vacuum degree screw type vacuum pump

Technical Field

The invention relates to the technical field of vacuum pumps, in particular to a high-vacuum-degree screw type vacuum pump.

Background

The screw vacuum pump utilizes a pair of screws, and the pump casing is internally provided with air suction equipment with air suction and exhaust functions, which is generated by synchronous high-speed reverse rotation, and the uniform-pitch screw pump has extremely high exhaust temperature due to no internal compression process, and can cause deformation of a rotor and the casing if the cooling effect is poor, so that the air suction effect is influenced, and the cooling casing is an indispensable link.

Present patent number CN104329257A provides a screw vacuum pump's screw rotor cooling device, through the inside coolant liquid passageway that forms of helical tooth at screw rotor, it is better to ensure screw rotor's cooling effect, but the vacuum pump is in order to guarantee high vacuum degree, can be totally enclosed the whole pump body, the coolant liquid passageway that above-mentioned device set up extends port and coolant liquid case intercommunication in the pump body is inside, if slight crack or deformation scheduling problem appear in this coolant liquid passageway, lead to the pump body to lose the leakproofness and lose vacuum effect, can directly influence vacuum pump even peripheral equipment and environment, the use risk who has led to the vacuum pump improves.

Present patent No. CN105386972A provides a screw vacuum pump with dynamic seal structure, through utilizing cooling jacket to form the heat insulation layer between axle and rotor, block the transmission of temperature to exhaust end shaft seal, but it only guarantees thermal-insulated function, and does not guarantee the processing mode of pump body heat dissipation function, make the heat that can constantly save in the pump body and be difficult to distribute, these heats can direct influence the screw rod, thereby influence functions such as the internal vacuum of pump forms, be unfavorable for the use to the vacuum pump of demand high vacuum.

The vacuum pump treatment mode on the existing market lets in cooling water in the vacuum pump casing more, then utilizes circulating pump and control mechanism to come recirculated cooling water and cool down, but its circulating pump and control mechanism etc. of addding directly have increased the requirement such as electric power, space and maintenance among the vacuum pump installation environment by a wide margin, and have improved the cost of maintenance of vacuum pump.

Therefore, a high vacuum screw vacuum pump is needed to solve the above problems.

Disclosure of Invention

Technical problem to be solved

In view of the defects in the prior art, the invention provides a high-vacuum screw type vacuum pump to solve the problems.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a high-vacuum degree screw type vacuum pump comprises a vacuum pump body, a shell and a circulation box, wherein the shell is sleeved on the outer wall of the vacuum pump body, the inner wall of the shell is in a hollow state and is separated from the outer wall of the vacuum pump body by five centimeters, the top surface of the shell is fixedly connected with the circulation box, the circulation box is a rectangular body with a hollow interior, circulation holes are formed in two sides of the bottom surface of the circulation box, the two circulation holes are communicated with the interior of the shell, each circulation hole is a circular truncated cone hole, the side with the small diameter of the circulation hole in the left side faces upwards, the side with the small diameter of the circulation hole in the right side faces downwards, a reset spring A is fixedly connected to the inner wall of each circulation hole, one end, which is not far away from the circulation hole, of the reset spring A is fixedly connected with a flitch, the flitch is shaped like a circular truncated, the clearance between the shell and the vacuum pump body and the circulation box are filled with cooling water, the bottom surface of the circulation hole on the left side is fixedly connected with a flow-limiting cover, the flow-limiting cover is hemispheroid, the center of the flow-limiting cover is provided with a circular platform hole, the diameter of the circular platform hole on the flow-limiting cover is large and corresponds to the circulation hole, the inner wall on the right side of the shell is paved with a cylinder A, one surface of the cylinder A corresponding to the vacuum pump body is in a hollow state, the inner wall of the cylinder A is fixedly connected with a connecting rod B, one end of the connecting rod B, far away from the piston A, is fixedly connected with a hemispheric cover A, the concave surface of the hemispheric cover A corresponds to the vacuum pump body, the outer walls on the two sides of the cylinder A are fixedly connected with a cylinder B, the cylinder B is in a hollow state and is communicated with the cylinder A, one surface of the piston B, far away from the cylinder A, the shape of hemisphere cover B is hemisphere and concave surface and drum B corresponds, two equal fixedly connected with rubber sleeve in hemisphere cover B corresponds drum B's one side, the rubber sleeve is hollow cylinder and keeps away from hemisphere cover B's one side and drum B fixed connection, the shape of rubber sleeve is the bellows form, piston A keeps away from connecting rod B's one side fixedly connected with reset spring B, the left side inner wall fixedly connected with pressurization gasbag of shell, the pressurization gasbag is the quadrant and the top is the hemisphere, the left surface fixed mounting of shell has the trachea to connect, the trachea connects and pressurizes the gasbag intercommunication.

Preferably, circular hole and downthehole fixed mounting have been seted up in the front of circulation case to the rolling bearing, and rolling bearing's inner circle fixedly connected with heat dissipation post, the material of heat dissipation post is the copper product matter, and the heat dissipation post is located the outside outer wall fixedly connected with fin of circulation case.

Preferably, the middle part inner wall fixedly connected with guide ring of circulation case, guide ring are hollow cylinder and both sides face and all are equipped with the opening, and the opening on guide ring right side is located the right side below, and the left opening of guide ring is located the upper left side, and the heat dissipation post is located the guide ring center, six slides of equidistant fixedly connected with of outer wall of heat dissipation post, and the one end and the laminating of guide ring inner wall of heat dissipation post are kept away from to the slide.

Preferably, the outer wall of the heat dissipation column, which is located outside the circulation box, is fixedly connected with a driving ring, the front face of the circulation box is provided with a hole on the right side of the heat dissipation column, a rotating bearing is fixedly installed in the hole, the inner ring of the rotating bearing is fixedly connected with a driven wheel A, the driven wheel A and the driving ring are in a fit state, the diameter of the driving ring is five times of that of the driven wheel A, one face of the driven wheel A, which is far away from the circulation box, is a circular table body, the front outer wall of the circulation box is fixedly connected with a connecting plate on the right side of the driven wheel A, the side face of the connecting plate is provided with holes at equal intervals, the rotating bearing is fixedly connected with the rotating bearing inner ring, which is close to the driven wheel A, on the connecting plate, a connecting rod D is fixedly connected with a driven wheel B, the remaining rolling bearing inner rings on the connecting plate are fixedly connected with rotating shafts, the rotating shafts close to the connecting rods D are attached to the poking plate, the outer wall of the left side of each rotating shaft is fixedly connected with a fan blade, the outer wall of the right side of each rotating shaft is fixedly connected with a linkage wheel, and every two adjacent linkage wheels are attached to each other.

Preferably, the spout has all been seted up to the both sides of slide, the spout is the type of protruding style of calligraphy, and cup jointed the slider in the spout, the slider is the I-shaped body and the transversal fan-shaped of personally submitting, the lagging has all been cup jointed to per two slider outer walls that are close to, the lagging is the type of protruding type groove all seted up of fan-shaped body and both sides face, the one side fixedly connected with magnet A of lagging corresponding heat dissipation post, the fretwork state is personally submitted to the dorsal part of heat dissipation post, circulation case dorsal part inner wall is at the central rod of the inside center fixedly connected with of heat dissipation post, the left side outer wall fixedly connected with magnet B of central rod, magnet B left end magnetic pole.

(III) advantageous effects

Compared with the prior art, the invention provides a high-vacuum-degree screw type vacuum pump which has the following beneficial effects:

1. this high vacuum screw vacuum pump, setting through the shell, the mode that utilizes encapsulation cooling water in the casing cools down the cooling to the vacuum pump body, and do not influence the vacuum of vacuum pump body, then the setting through drum A, utilize pressurization gasbag inflation and shrink as power, promote the cooling water flow in the shell and circulate the change with the cooling water of circulation incasement, thereby keep the temperature of cooling water in the shell to be less than the temperature of vacuum pump body all the time, thereby guarantee that the heat transfer function of cooling water promotes the cooling effect to the vacuum pump body, and this circulation effect need not additionally set up circulating pump and control circuit, make the installation environment of the pump body receive the limit to reduce, and reduced the cost of maintenance of the pump body.

2. This high vacuum screw vacuum pump, through the setting of heat dissipation post, utilize the good heat conductivity of heat dissipation post copper product matter, the heat dissipation post carries out the heat transfer back with the cooling water in the circulation case, directly gives off the heat to the outside air in to improve the cooling efficiency of circulation incasement cooling water, guarantee the cooling effect to the cooling water in the shell after the circulation, and increase with external area of contact through setting up the fin at heat dissipation post outer wall, thereby further improve cooling efficiency.

3. This high vacuum screw vacuum pump, setting through the slide, enlarge the contact surface of heat dissipation post and cooling water, thereby increase the radiating effect to the cooling water, and separate the space of circulation incasement through guide ring and slide, then utilize the rotation of slide to come the ration to carry the cooling water, utilize the heat dissipation post to carry the circulation case left side again after the cooling water cooling at the pivoted in-process, it is too big to avoid the cooling water discharge of direct input circulation incasement, lead to the problem of too fast and circulation incasement cooling water mixing under the driving force effect, prevent that circulation incasement cooling water from heating up because mixing when not inputing the shell.

4. This high vacuum screw vacuum pump, through the setting of connecting plate, the circulation that utilizes the cooling water to have certain interval flows and stirs the connecting plate and go up the pivot and rotate to drive the flabellum and rotate and produce wind-force, utilize wind-force to dispel the flow of post surrounding air with higher speed, dispel the temperature efficiency of post with higher speed, thereby increase the effect of heat dissipation post to the cooling water cooling in the circulation case.

5. This high vacuum screw vacuum pump through the setting of slider and lagging, utilizes magnetic force to increase the propulsive force that promotes the cooling water to increase the mobility and the extrusion effect of cooling water, be favorable to accelerateing the mobility of cooling water, further increase heat transfer effect and cooling efficiency.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic front sectional view illustrating a first embodiment of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a cylinder A according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram according to a second embodiment of the present invention;

FIG. 6 is a schematic sectional front view illustrating a third embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a third heat-dissipating stud according to an embodiment of the present invention;

FIG. 8 is an enlarged view of FIG. 7 at B according to another embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a third embodiment of the present invention;

fig. 10 is an enlarged view of fig. 9 at C according to the third embodiment of the present invention.

In the figure: the vacuum pump comprises a vacuum pump body 1, a shell 2, a circulation box 3, a circulation hole 4, a flow limiting cover 5, a pasting plate 6, a connecting rod A7, a return spring A8, cooling water 9, a cylinder A10, a piston A11, a connecting rod B12, a hemispherical cover A13, a cylinder B14, a piston B15, a connecting rod C16, a hemispherical cover B17, a rubber sleeve 18, a return spring B19, a heat dissipation column 20, a guide ring 21, a sliding plate 22, a sliding block 23, a sleeve plate 24, a magnet A25, a central rod 26, a magnet B27, a driving ring 28, a driven wheel A29, a driven wheel B30, a connecting rod D31, a poking plate 32, a rotating shaft 33, fan blades 34, a linkage wheel 35, a connecting plate 36, a pressurizing air bag 37 and an.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1-5, a high vacuum degree screw vacuum pump comprises a vacuum pump body 1, a casing 2 and a circulation box 3, wherein the casing 2 is sleeved on the outer wall of the vacuum pump body 1, the inner wall of the casing 2 is in a hollow state and is spaced from the outer wall of the vacuum pump body 1 by five centimeters, the top surface of the casing 2 is fixedly connected with the circulation box 3, the circulation box 3 is a rectangular body with a hollow inner part, circulation holes 4 are respectively formed in both sides of the bottom surface of the circulation box 3, the two circulation holes 4 are communicated with the inner part of the casing 2, the circulation holes 4 are circular table holes, the side with the small diameter of the circulation hole 4 at the left side is upward, the side with the small diameter of the circulation hole 4 at the right side is downward, a return spring a8 is fixedly connected with the inner wall of the circulation hole 4, a pasting plate 6 is fixedly connected with one end of the return spring a8 which is not far away from the circulation hole 4, the pasting plate 6 is circular table body and is attached, the connecting rod A7 and the return spring A8 are in a sleeved connection, a gap between the shell 2 and the vacuum pump body 1 and the circulation box 3 are filled with cooling water 9, the bottom surface of the circulation hole 4 on the left side is fixedly connected with a flow-limiting cover 5, the flow-limiting cover 5 is hemispherical, a circular table hole is formed in the center, the diameter of the circular table hole on the flow-limiting cover 5 is large and corresponds to the circulation hole 4, a cylinder A10 is laid on the inner wall on the right side of the shell 2, one side of the cylinder A10 corresponding to the vacuum pump body 1 is in a hollow state, the inner wall of the cylinder A11 is sleeved, one side of the piston A11 corresponding to the vacuum pump body 1 is fixedly connected with a connecting rod B12, one end of the connecting rod B12 far away from the piston A11 is fixedly connected with a hemispherical cover A13, the hemispherical cover A13 is in a hemispherical shape, the concave surface of the hemispherical cover A13 corresponds to the vacuum pump body 1, the outer walls on both sides of the cylinder A10 are fixedly, a connecting rod C16 is fixedly connected to one surface of the piston B15 far away from the cylinder A10, a hemispherical cover B17 is fixedly connected to one surface of the connecting rod C16 far away from the cylinder B14, the hemispherical cover B17 is hemispherical and the concave surface of the hemispherical cover B17 corresponds to the cylinder B14, rubber sleeves 18 are fixedly connected to one surfaces of the two hemispherical covers B17 corresponding to the cylinder B14, the rubber sleeves 18 are hollow cylinders and the surface of the rubber sleeves far away from the hemispherical cover B17 is fixedly connected with the cylinder B14, the rubber sleeves 18 are corrugated pipes, a return spring B19 is fixedly connected to one surface of the piston A11 far away from the connecting rod B12, a pressurizing air bag 37 is fixedly connected to the inner wall of the left side of the shell 2, the pressurizing air bag 37 is fan-shaped and the top end of the fan-shaped, an air pipe joint 38 is fixedly installed on the left side of the shell 2 and is communicated with the pressurizing air bag 37, heat generated when the vacuum pump, the cooling water 9 exchanges heat with the external environment through the shell 2 while accumulating heat, firstly, the air pipe is connected with the air pipe joint 38, the pressurizing air bag 37 is continuously inflated and exhausted, when the pressurizing air bag 37 is inflated, the cooling water 9 can be extruded to circulate, the expansion coefficient of the top end of the pressurizing air bag 37 is larger, the extruding cooling water 9 flows anticlockwise, the flitch 6 in the left circulation hole 4 is extruded by the cooling water 9 to seal the left circulation hole 4 from the bottom, through the hemispherical arrangement of the hemispherical cover A13, the concave surface of the hemispherical cover A13 is more concentrated and larger than the convex surface in stress, the cooling water 9 pushes the hemispherical cover A13 to approach the cylinder A10 to drive the piston A11 to compress the air in the cylinder A10, the compressed air in the cylinder A10 can generate a driving force to the piston B15, and the driving force of the air continuously generates force that the two hemispherical covers B17 are separated in the direction far away from the cylinder A10, then the connecting rod C16 drives the two semispherical hoods B17 to separate from each other and pulls the rubber sleeve 18 to deform and expand, the cooling water 9 in the shell 2 is pushed to push the flitch 6 away from the circulation hole 4 on the right side and then flows into the circulation box 3, the cooling water is paved on the right side of the shell 2 through the cylinder A10, the cooling water 9 is extruded from the right side of the shell 2, so that the cooling water 9 flows in a counterclockwise state, after the cooling water 9 in the circulation box 3 which is far away from the vacuum pump body 1 and is in a cooling state is extruded, the flitch 6 in the circulation hole 4 on the left side is pushed open and then is mixed into the shell 2, so as to circulate and cool the cooling water 9 in the shell 2, when the air pipe joint 38 sucks air from the pressurizing air bag 37, the cooling water 9 stops extruding on the semispherical hood A13, the return spring B19 drives the semispherical hood A13 to rebound and eliminates the force pushing the semispherical hood B17 through negative pressure, and the arrangement of the flow limiting, thereby realize the difference of inside and outside pressure, guarantee that cooling water 9 can extrude smoothly in entering into shell 2 in the circulation case 3, setting through shell 2, utilize the mode of encapsulation cooling water 9 in the casing to cool down vacuum pump body 1, and do not influence vacuum pump body 1's vacuum, then through drum A10's setting, utilize pressurization gasbag 37 inflation and shrink as power, promote cooling water 9 flow in shell 2 and circulate the change with the cooling water in the circulation case 3, thereby keep the temperature of cooling water 9 in the shell 2 to be less than vacuum pump body 1's temperature all the time, thereby guarantee that cooling water 9's heat transfer function promotes the cooling effect to vacuum pump body 1, and this circulation effect does not need additionally to set up circulating pump and control circuit, make the installation environment of the pump body receive the limit to reduce, and reduced the cost of maintenance of the pump body.

Example two: referring to fig. 5, on the basis of the first embodiment, a circular hole is formed in the front surface of the circulation box 3, a rotating bearing is fixedly installed in the circular hole, a heat dissipation column 20 is fixedly connected to an inner ring of the rotating bearing, the heat dissipation column 20 is made of a copper material, a heat dissipation fin is fixedly connected to an outer wall of the heat dissipation column 20, which is located outside the circulation box 3, through the arrangement of the heat dissipation column 20, the heat dissipation column 20 is used for utilizing good thermal conductivity of the copper material, after the heat dissipation column 20 exchanges heat with the cooling water 9 in the circulation box 3, the heat is directly dissipated into the outside air, so that the cooling efficiency of the cooling water 9 in the circulation box 3 is improved, the cooling effect of the cooling water 9 in the housing 2 after circulation is ensured, and the contact area with the outside is increased by arranging the heat dissipation fin on.

Example three: referring to fig. 6-10, on the basis of the second embodiment, a guide ring 21 is fixedly connected to an inner wall of a middle portion of the circulation box 3, the guide ring 21 is a hollow cylinder, two side surfaces of the guide ring 21 are provided with openings, the opening on the right side of the guide ring 21 is located on the lower right side, the opening on the left side of the guide ring 21 is located on the upper left side, the heat dissipation column 20 is located at the center of the guide ring 21, six sliding plates 22 are fixedly connected to outer walls of the heat dissipation column 20 at equal intervals, one end of each sliding plate 22, which is far away from the heat dissipation column 20, is attached to the inner wall of the guide ring 21, the cooling water 9 which is squeezed and flows into the circulation box 3 is squeezed into the guide ring 21, the oblique openings in the guide ring 21 generate oblique pushing force on the sliding plates 22, the sliding plates 22 drive the heat dissipation column 20 to rotate, the heat dissipation column 20 transmits the cooling water 9 through gaps of the sliding plates 22 after, thereby increase the radiating effect to cooling water 9, and separate the space in with circulation case 3 through guide ring 21 and slide 22, then utilize slide 22's rotation to come the ration to carry cooling water 9, utilize heat dissipation post 20 to carry circulation case 3 left side after cooling water 9 at the pivoted in-process, it is too big to avoid the cooling water 9 flow of direct input circulation case 3, lead to the problem of the too fast cooling water 9 mixture in circulation case 3 under the effect of driving force, prevent that circulation case 3 cooling water 9 from rising temperature because of mixing when not inputing shell 2.

The outer wall of the heat dissipation column 20, which is located outside the circulation box 3, is fixedly connected with a driving ring 28, the right side of the heat dissipation column 20 on the front surface of the circulation box 3 is provided with a hole and a rotating bearing, the inner ring of the rotating bearing is fixedly connected with a driven wheel A29, the driven wheel A29 and the driving ring 28 are in a joint state, the diameter of the driving ring 28 is five times of the diameter of the driven wheel A29, one surface of the driven wheel A29, which is far away from the circulation box 3, is a circular table body, the outer wall of the front surface of the circulation box 3 is fixedly connected with a connecting plate 36 on the right side of the driven wheel A29, the side surface of the connecting plate 36 is provided with holes and a rotating bearing at equal intervals, the inner ring of the rotating bearing, which is close to the driven wheel A29, on the connecting plate 36, is fixedly connected with a connecting rod D31, one end of the connecting rod D31, which is close to the driven wheel A29, the remaining inner rings of the rotating bearings on the connecting plate 36 are fixedly connected with rotating shafts 33, the rotating shaft 33 close to the connecting rod D31 is attached to the poking plate 32, the outer wall of the left side of the rotating shaft 33 is fixedly connected with fan blades 34, the outer wall of the right side of the rotating shaft 33 is fixedly connected with linkage wheels 35, every two adjacent linkage wheels 35 are attached to each other, the heat dissipation column 20 rotates and then drives the driving ring 28 and the driven wheel A29 to rotate through friction transmission, the diameter difference between the heat dissipation column 20 and the driving ring 28 drives the driving ring 28 to rotate at a high speed, then the rotation direction is changed from the transverse direction to the vertical direction through friction rotation of the driving ring 28 and the driven wheel A29 to drive the driven wheel B30 to rotate, the poking plate 32 is driven to rotate when the driven wheel B30 rotates, when the poking plate 32 is in contact with the rotating shaft 33, a force for pushing the rotating shaft 33 to rotate is generated, and the rotating shaft 33 is forced to rotate after the, make pivot 33 keep long-time rotation, and through the laminating of a plurality of interlocking wheels 35, drive a plurality of pivots 33 and keep rotating simultaneously, pivot 33 rotates and drives flabellum 34 and rotates and produce wind-force, utilize wind-force to accelerate the flow of the air around the heat dissipation post 20, through the setting of connecting plate 36, utilize cooling water 9 to have certain spaced circulation flow to stir pivot 33 rotation on the connecting plate 36, thereby drive flabellum 34 and rotate and produce wind-force, utilize wind-force to accelerate the flow of the air around the heat dissipation post 20, accelerate the cooling efficiency of heat dissipation post 20, thereby increase the effect of heat dissipation post 20 to the cooling of cooling water 9 in the circulation box 3.

The two sides of the sliding plate 22 are respectively provided with a sliding groove which is a convex body, the sliding grooves are internally sleeved with sliding blocks 23, the sliding blocks 23 are respectively in an I-shaped body, the cross section of each sliding block 23 is in a fan shape, the outer walls of every two adjacent sliding blocks 23 are respectively sleeved with a sleeve plate 24, the sleeve plates 24 are respectively in a fan shape, two side surfaces of each sleeve plate 24 are respectively provided with a convex type groove (as shown in figure 8), one surface of each sleeve plate 24 corresponding to the heat dissipation column 20 is fixedly connected with a magnet A25, the back side of the heat dissipation column 20 is in a hollow state, the center of the inner wall of the back side of the circulation box 3 in the heat dissipation column 20 is fixedly connected with a central rod 26, the outer wall of the left side of the central rod 26 is fixedly connected with a magnet B27, the magnetic pole of the left end of the magnet B27 is the same as the magnetic pole of one end of the magnet A25, then, the sliding plate 22 rotates to convey the cooling water 9 away, after the cooling water 9 is conveyed to the left opening of the guide ring 21, like poles repel each other through the magnet a25 and the magnet B27 to push the sliding block 23 and the sleeve plate 24 to slide in the sliding plate 22 in the direction away from the heat dissipation column 20, the cooling water 9 is extruded out, the flowability of the cooling water 9 is increased, the pushing force for pushing the cooling water 9 is increased through the arrangement of the sliding block 23 and the sleeve plate 24 by utilizing magnetic force, so that the flowability and the extrusion effect of the cooling water 9 are increased, the acceleration of the flowability of the cooling water 9 is facilitated, and the heat exchange effect and the cooling efficiency are further increased.

When in use, in the first step, heat generated when the vacuum pump body 1 operates exchanges heat with the cooling water 9, so as to cool the vacuum pump body 1, the cooling water 9 exchanges heat with the external environment through the shell 2 while accumulating heat, firstly, the air pipe is connected with the air pipe joint 38, the pressurizing air bag 37 is continuously inflated and exhausted, when the pressurizing air bag 37 is inflated, the cooling water 9 is squeezed to circulate, the expansion coefficient of the top end of the pressurizing air bag 37 is larger through the arrangement of the hemispheroid at the top end of the pressurizing air bag 37, the cooling water 9 is squeezed to flow anticlockwise, the pasting plate 6 in the circulating hole 4 at the left side is squeezed by the cooling water 9, the circulating hole 4 at the left side is sealed from the bottom, the concave surface of the hemispherical cover A13 is more concentrated and larger than the convex surface through the arrangement of the hemispherical cover A13, the cooling water 9 pushes the hemispherical cover A13 to approach the cylinder A10, and drives the piston A11 to compress the air in the cylinder A10, compressed air in the cylinder A10 can generate a driving force on the piston B15, the driving force of the air continuously generates a force that the two hemispherical covers B17 are separated towards a direction far away from the cylinder A10, then the connecting rod C16 drives the two hemispherical covers B17 to be separated from each other and pulls the rubber sleeve 18 to deform and expand, cooling water 9 in the shell 2 is pushed to push the flitch 6 from the circulation hole 4 on the right side and then flows into the circulation box 3, the cooling water is paved on the right side of the shell 2 through the cylinder A10, the cooling water 9 is squeezed from the right side of the shell 2, so that the cooling water 9 flows in a counterclockwise state, the cooling water 9 in the cooling state far away from the vacuum pump body 1 in the circulation box 3 is squeezed and then pushes the flitch 6 in the circulation hole 4 on the left side and then is mixed into the shell 2, the cooling water 9 in the shell 2 is circulated and cooled, when the air bag 37 is pumped by the air pipe joint 38, the cooling water 9 stops squeezing the hemispherical cover A, the reset spring B19 drives the semispherical cover A13 to rebound and eliminate the force pushing the semispherical cover B17 through negative pressure, and the setting of the flow limiting cover 5 reduces the water quantity of the cooling water 9 flowing through the lateral flow hole 4 on the left side in the shell 2, thereby realizing the difference of the internal and external pressure, and ensuring that the cooling water 9 in the circulating box 3 can be smoothly extruded and enter the shell 2.

And secondly, the cooling water 9 which is extruded and gushes into the circulating box 3 is firstly extruded into the guide ring 21, the slide plate 22 is driven to generate oblique pushing force through an oblique opening in the guide ring 21, the heat dissipation column 20 is driven to rotate through the slide plate 22, and the cooling water 9 is transmitted through the gap of the slide plate 22 after the heat dissipation column 20 rotates.

In the third step, after the heat dissipation column 20 rotates, through the friction transmission of the driving ring 28 and the driven wheel A29, and the diameter difference between the heat dissipation column 20 and the driving ring 28 drives the driving ring 28 to rotate at a high speed, then the driven wheel B30 is driven to rotate by the friction rotation of the driving ring 28 and the driven wheel A29, the rotation direction is changed from the transverse direction to the vertical direction, the driven wheel B30 drives the poking plate 32 to rotate when rotating, when the toggle plate 32 contacts the rotating shaft 33, a force for pushing the rotating shaft 33 to rotate is generated, then, when the toggle plate 32 is disengaged from the rotary shaft 33, the rotary shaft 33 is forced to rotate, and the rotary bearing reduces the friction force of the rotation, so that the rotary shaft 33 is kept rotating for a long time, and the plurality of rotating shafts 33 are driven to simultaneously keep rotating through the joint of the plurality of linkage wheels 35, the rotating shafts 33 rotate to drive the fan blades 34 to rotate to generate wind power, and the flow of air around the heat dissipation column 20 is accelerated by utilizing the wind power.

Fourthly, when the sliding plate 22 rotates along with the heat dissipation column 20, the cooling water 9 is squeezed to push the sliding block 23 to slide relative to the sleeve plate 24, so that the sliding block 23 and the sleeve plate 24 are contracted at positions close to the heat dissipation column 20, then the sliding plate 22 rotates to convey the cooling water 9, after the cooling water 9 is conveyed to the left opening of the guide ring 21, the sliding block 23 and the sleeve plate 24 are pushed to slide in the sliding plate 22 in a direction away from the heat dissipation column 20 through the repulsion of the like poles of the magnet A25 and the magnet B27, the cooling water 9 is squeezed out, and the fluidity of the cooling water 9 is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-vacuum-degree screw vacuum pump comprises a vacuum pump body (1), a shell (2) and a circulation box (3), wherein the shell (2) is sleeved on the outer wall of the vacuum pump body (1), the inner wall of the shell (2) is in a hollow state and is separated from the outer wall of the vacuum pump body (1) by five centimeters, the top surface of the shell (2) is fixedly connected with the circulation box (3), the circulation box (3) is a rectangular body with a hollow interior, circulation holes (4) are formed in two sides of the bottom surface of the circulation box (3), the two circulation holes (4) are communicated with the interior of the shell (2), the circulation holes (4) are round table holes, the side with the small diameter of the circulation hole (4) on the left side faces upwards, the side with the small diameter of the circulation hole (4) on the right side faces downwards, a reset spring A (8) is fixedly connected to the inner wall of the circulation hole (4), and one end, which is not far away from, the shape of flitch (6) is the round platform body and laminates with the inner wall of opening (4), and flitch (6) correspond one side fixedly connected with connecting rod A (7) of reset spring A (8), and connecting rod A (7) are cup joint the relation with reset spring A (8), and clearance and circulation case (3) the internal packing of shell (2) and vacuum pump body (1) have cooling water (9), its characterized in that: a cylinder A (10) is laid on the inner wall of the right side of the shell (2), one side, corresponding to the vacuum pump body (1), of the cylinder A (10) is in a hollow state, a piston A (11) is sleeved on the inner wall, one side, corresponding to the vacuum pump body (1), of the piston A (11) is fixedly connected with a connecting rod B (12), one end, far away from the piston A (11), of the connecting rod B (12) is fixedly connected with a hemisphere cover A (13), the hemisphere cover A (13) is in a hemisphere shape, the concave surface of the hemisphere cover A (13) corresponds to the vacuum pump body (1), two outer walls of two sides of the cylinder A (10) are fixedly connected with a cylinder B (14), the cylinder B (14) is in a hollow state and is communicated with the cylinder A (10), a piston B (15) is sleeved on the inner wall of the cylinder B (14), one side, far away from the cylinder A (10), of the piston B (15) is fixedly connected with a connecting rod C (16), one, the shape of hemisphere cover B (17) is the hemisphere and the concave surface corresponds with drum B (14), the equal fixedly connected with rubber sleeve (18) of one side that two hemisphere covers B (17) correspond drum B (14), rubber sleeve (18) are hollow cylinder and keep away from the one side and drum B (14) fixed connection of hemisphere cover B (17), the shape of rubber sleeve (18) is the bellows form, the one side fixedly connected with reset spring B (19) of connecting rod B (12) is kept away from in piston A (11), the left side inner wall fixedly connected with pressurization gasbag (37) of shell (2), pressurization gasbag (37) are the quadrant and the top is the hemisphere, the left surface fixed mounting of shell (2) has trachea joint (38), trachea joint (38) and pressurization gasbag (37) intercommunication.

2. A high vacuum screw vacuum pump as claimed in claim 1, wherein: the bottom surface of the left side circulation hole (4) is fixedly connected with a flow limiting cover (5), the flow limiting cover (5) is hemispherical, a circular table hole is formed in the center of the flow limiting cover, and the diameter of the circular table hole on the flow limiting cover (5) is large and corresponds to the circulation hole (4).

3. A high vacuum screw vacuum pump as claimed in claim 1, wherein: the front surface of the circulation box (3) is provided with a round hole, a rotating bearing is fixedly arranged in the round hole, and the inner ring of the rotating bearing is fixedly connected with a heat dissipation column (20).

4. A high vacuum screw vacuum pump as claimed in claim 3, wherein: the outer wall of the heat dissipation column (20) located outside the circulation box (3) is fixedly connected with a heat dissipation fin.

5. A high vacuum screw vacuum pump as claimed in claim 3, wherein: the middle part inner wall fixedly connected with guide ring (21) of circulation case (3), guide ring (21) are hollow cylinder and both sides face and all are equipped with the opening, the opening on guide ring (21) right side is located the right side below, the left opening of guide ring (21) is located the upper left side, and heat dissipation post (20) are located guide ring (21) center, six slides (22) of equidistant fixedly connected with of outer wall of heat dissipation post (20), the one end and the laminating of guide ring (21) inner wall that heat dissipation post (20) were kept away from in slide (22).

6. A high vacuum screw vacuum pump as claimed in claim 5, wherein: the outer wall of the heat dissipation column (20) positioned outside the circulation box (3) is fixedly connected with a driving ring (28), the right side of the heat dissipation column (20) on the front side of the circulation box (3) is provided with a hole, a rotating bearing is fixedly installed in the hole, the inner ring of the rotating bearing is fixedly connected with a driven wheel A (29), the driven wheel A (29) and the driving ring (28) are in a fit state, the diameter of the driving ring (28) is five times that of the driven wheel A (29), one side, far away from the circulation box (3), of the driven wheel A (29) is a circular table body, the outer wall of the front side of the circulation box (3) is fixedly connected with a connecting plate (36) on the right side of the driven wheel A (29), the side of the connecting plate (36) is provided with holes at equal intervals, the rotating bearing is fixedly connected in the hole, a connecting rod D (31) is fixedly connected to the inner ring of the rotating bearing, close to the driven, follow driving wheel B (30) and be the round platform body and with the laminating of the round platform face from driving wheel A (29), connecting rod D (31) are kept away from two stirring board (32) of the one end outer wall fixedly connected with of following driving wheel A (29), the equal fixedly connected with pivot (33) of remaining rolling bearing inner circle on connecting plate (36), pivot (33) and stirring board (32) laminating near connecting rod D (31), left side outer wall fixedly connected with flabellum (34) of pivot (33), the right side outer wall fixedly connected with linkage wheel (35) of pivot (33), and every two linkage wheels (35) that are close to laminate each other.

7. A high vacuum screw vacuum pump as claimed in claim 5, wherein: the spout has all been seted up to the both sides of slide (22), the spout is the type of protruding body, and cup jointed slider (23) in the spout, slider (23) are the I-shaped body and transversal fan-shaped of personally submitting, apron (24) have all been cup jointed to per two slider (23) outer walls that are close to, boss (24) are fan-shaped body and both sides face and have all seted up type of protruding type groove, one side fixedly connected with magnet A (25) of apron (24) corresponding heat dissipation post (20), the hollow state is personally submitted to the dorsal part of heat dissipation post (20), circulation case (3) dorsal part inner wall is at heat dissipation post (20) inside central fixedly connected with well core rod (26), the left side outer wall fixedly connected with magnet B (27) of well core rod (26), magnet B (27) left end magnetic pole corresponds heat dissipation post (20) one end magnetic pole with magnet A (25.