CN214944837U

CN214944837U - Oil-free vacuum pump

Info

Publication number: CN214944837U
Application number: CN202022938443.9U
Authority: CN
Inventors: 姚宾勇
Original assignee: Dongguan Leynow Electrical & Mechanical Technology Co ltd
Current assignee: Dongguan Leynow Electrical & Mechanical Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-11-30
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses an oil-free vacuum pump, which comprises a casing, the middle part of the inner cavity of the casing is provided with a double-output shaft motor, two output shafts of the double-output shaft motor are both provided with an eccentric wheel connecting rod mechanism and a fan, the fan is both arranged on the output shafts of the double-output shaft motor, the wind directions of the two fans are consistent, two side wall openings of the casing are provided with a fan cover and a detachable filter screen, a supporting device is arranged between the main body of the double-output shaft motor and the casing, the supporting device is internally provided with an air vent, under the action of two blowing fans towards the same direction, the flowing speed of the air-cooled airflow is obviously increased, thereby taking away more heat, through increasing the detachable filter screen, filtering sundries and dust mixed with the cooling airflow, and through sleeving a rubber shock absorption sleeve pad on the outer side of a fixed foot, the screw fixation is not needed, and the replacement is very convenient.

Description

Oil-free vacuum pump

Technical Field

The utility model relates to a vacuum pump field, in particular to do not have oily vacuum pump.

Background

The basic principle of the oil-free vacuum pump is that a connecting rod and an eccentric wheel are pressed together, the eccentric wheel is locked on a motor shaft tightly, the connecting rod is driven to reciprocate due to the rotation of a rotating shaft, so that the processes of air suction, compression and discharge are realized, the whole vacuum pump is small in size, light in weight, attractive in appearance, simple in structure, completely oil-free, easy to maintain, widely applied to the fields of medical equipment, automatic control, printing machinery, packaging machinery, food preservation and the like, and is one of the best choices for providing a vacuum space for an industrial society, however, along with the operation of the vacuum pump, the motor and a cylinder piston can generate heat, at present, the cooling method of the vacuum pump is mainly characterized in that the fan is arranged on the motor shaft, two fans blow air towards the inside of a machine shell, independent air flow channels are formed on two sides of a motor with double output shafts, namely, the two sides are respectively air-cooled, and the fan directly faces the eccentric wheel mechanism, the air current seldom flows through the motor with the double output shafts, so that the heat generation of the motor is obvious, the use is influenced, in addition, the speed of the motor determines the speed of the fan, and the power and the rotating speed of the motor are matched with the vacuum degree, so the change cannot be realized, and the heat dissipation effect is difficult to improve.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art's defect, provide an oil-free vacuum pump, hold in the palm the organic nested coincide of three kinds of wineries of beverage bottle, wine and wineglass, save space, make things convenient for people to use, simultaneously, utilize to be rich in strong family's traditional culture element to decorate, design benefit.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an oil-free vacuum pump, which comprises a casing, the middle part of the inner cavity of the casing is provided with a double-output shaft motor, two output shafts of the double-output shaft motor are both provided with an eccentric wheel link mechanism, one side of the eccentric wheel link mechanism is provided with a fan, the fan is both arranged on the output shafts of the double-output shaft motor, the wind directions of the two fans are consistent, two side wall openings of the casing are provided with fan covers, the fan cover on the air inlet side is provided with a detachable filter screen, the top of the eccentric wheel link mechanism is provided with a piston cylinder assembly, the cylinder of the piston cylinder assembly is fixed on the inner wall of the casing, the cylinder part of the top end of the casing corresponding to the piston cylinder assembly is provided with a vent hole, the top of the piston cylinder assembly is provided with a valve metal plate, the top of the valve metal plate is provided with an upper cover, the top surface of the upper cover is provided with a first heat radiation fin, the dual-output-shaft motor is characterized in that a supporting device is arranged between the main body of the dual-output-shaft motor and the shell, vent holes are formed in the supporting device, and the vent holes are communicated with cavities in the shell on two sides of the dual-output-shaft motor.

As an optimized technical scheme of the utility model, the bottom of casing is provided with fixed foot, the middle part of fixed foot is provided with the locating hole.

As an optimized technical scheme of the utility model, the outside cover of fixed foot is equipped with the shock attenuation cover pad, the shock attenuation cover pad is opened there is corresponding recess.

As an optimal technical scheme of the utility model, the shock attenuation cover gasket adopts rubber materials to make, and opens with the corresponding position of locating hole after the suit has the through-hole.

As an optimized technical scheme of the utility model, the surface of fan lid is opened has spider web structure's thermovent, can dismantle the filter screen the same with the outer fringe shape of fan lid, and fix with the fan lid through the screw.

As an optimal technical scheme of the utility model, the outside that the casing corresponds the strutting arrangement position is provided with second heat radiation fin, first heat radiation fin and second heat radiation fin are the integrated into one piece structure with base member separately.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an inside at the casing forms air-cooled airflow channel, under two fan effects of blowing towards the equidirectional, make the air-cooled air current get into from the one end of casing, the other end flows, show the speed that increases the flow, thereby take away more heats, reach better radiating effect, and also need not to increase many ventilation holes on the surface of casing, reduce the risk of probably intaking to the part harm, can dismantle the filter screen through the outside increase at the fan lid, filter out debris and the dust that the cooling air current mix with, reduce the influence of dust to part work efficiency, through the outside suit rubber shock sleeve pad at fixed foot, can provide stable support and good shock attenuation, fall and anti-skidding function of making an uproar, need not the screw fixation, it is convenient to change.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional structure of the prior art;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

in the figure: 1. a housing; 2. a motor with double output shafts; 3. an eccentric wheel link mechanism; 4. a fan; 5. a fan cover; 6. the filter screen can be disassembled; 7. a piston cylinder assembly; 8. air holes are formed; 9. a valve metal plate; 10. an upper cover; 11. a first heat radiation fin; 12. a support device; 13. a vent hole; 14. a fixing leg; 15. positioning holes; 16. a shock-absorbing sleeve gasket; 17. and a second heat dissipation fin.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-3, the utility model provides an oil-free vacuum pump, which comprises a casing 1, a double output shaft motor 2 is arranged in the middle of the inner cavity of the casing 1, an eccentric wheel link mechanism 3 is arranged on two output shafts of the double output shaft motor 2, a fan 4 is arranged on one side of the eccentric wheel link mechanism 3, the fan 4 is arranged on the output shaft of the double output shaft motor 2, the wind directions of the two fans 4 are consistent, a fan cover 5 is arranged on the opening of the two side walls of the casing 1, a detachable filter screen 6 is arranged on the fan cover 5 on the air inlet side, a piston cylinder assembly 7 is arranged on the top of the eccentric wheel link mechanism 3, a cylinder of the piston cylinder assembly 7 is fixed on the inner wall of the casing 1, a vent hole 8 is arranged on the top end of the casing 1 corresponding to the cylinder of the piston cylinder assembly 7, a valve metal plate 9 is arranged on the top of the piston cylinder assembly 7, an upper cover 10 is arranged on the top of the valve metal plate 9, the top surface of the upper cover 10 is provided with first heat dissipation fins 11, a supporting device 12 is arranged between the main body of the dual output shaft motor 2 and the casing 1, the inside of the supporting device 12 is provided with vent holes 13, and the vent holes 13 are communicated with the inner cavities of the casing 1 at two sides of the dual output shaft motor 2.

Furthermore, the bottom of the casing 1 is provided with a fixing pin 14, and the fixing pin 14 is provided with a positioning hole 15, so that the whole vacuum pump can be conveniently supported on a plane or fixed on a machine device.

The outside cover of fixed foot 14 is equipped with shock attenuation cover pad 16, shock attenuation cover pad 16 opens there is corresponding recess, when providing stable support, has good shock attenuation, falls make an uproar and anti-skidding function, uses the wearing and tearing back of a certain time, can take off the change easily.

The damping sleeve pad 16 is made of rubber materials, the groove is tightly connected with the fixing feet 14 in an interference fit mode through the elasticity of rubber, the assembly and disassembly are very convenient, the through hole is formed in the position, corresponding to the positioning hole 15, of the sleeved portion, and when the damping sleeve pad is required to be fixed to a certain plane, the damping sleeve pad can be connected through the bolt in a penetrating mode.

The surface of fan lid 5 is opened has spider web structure's thermovent, has good air permeability, and the radiating effect is good, can dismantle filter screen 6 the same with fan lid 5's outer fringe shape, can dismantle filter screen 6 and adopt the compound filter screen piece of multilayer, has less mesh size, filters the air that gets into in the pump, detach debris and partial granule, and fixed with fan lid 5 through the screw, the convenient clearance of dismantling.

The outer side of the casing 1 corresponding to the position of the supporting device 12 is provided with the second heat radiation fins 17, the first heat radiation fins 11, the second heat radiation fins 17 and the respective base bodies are of an integrated structure, heat radiation is performed in a conduction mode, manufacturing is light, the heat radiation surface area is obviously increased, and good heat radiation performance is achieved.

Specifically, when the air-cooling air conditioner is used, the detachable filter screen 6 is calmed through screws, a power supply is started, the double-output-shaft motor 2 runs and rotates to drive the eccentric wheel connecting rod mechanism 3 to act, the piston reciprocates along the cylinder, and air in a pumped container is continuously pumped out, compressed and discharged until a certain stable pressure is reached, meanwhile, the double-output-shaft motor 2 can drive the fans 4 on two sides to rotate, and the two fans are blown to the same direction, due to the existence of the vent hole 13, a smooth air channel is formed inside the casing 1, one fan 4 blows air to the outside of the casing 1, the other fan 4 blows air to the inside of the casing 1, air can also enter through the vent hole 8, the two fans 4 work together, so that the air volume passing through the inside of the casing 1 is obviously increased, more heat can be taken away, and especially, the air flow is directly blown around the double-output-shaft motor 2, the heat dissipation effect is better, and simultaneously first radiating fin 11 and second radiating fin 17 also dispel the heat through the mode of heat transfer, overlaps rubber shock attenuation cover pad 16 on fixed foot 14, can limit the vibrations of buffering vacuum pump, the noise reduction.

The utility model discloses an air vent 13 forms air-cooled airflow channel in the inside of casing 1, the cooperation is to the fan 4 of equidirectional blowing, under the condition that 4 rotational speeds of fan are the same, show the flow that increases cooling air flow and the speed that flows through, thereby take away more heats, reach better radiating effect, and also need not to increase many holes on the surface of casing 1, the hidden danger of the trouble of leaking has been reduced, filter screen 6 can be dismantled through the outside increase at fan lid 5, debris and dust in the reduction entering vacuum pump, avoid the dust to adhere to on the blade of fan 4, influence the air-cooled effect, through the outside suit rubber shock sleeve pad 16 at fixed foot 14, can provide stable support, good shock attenuation has simultaneously, fall and anti-skidding function of making an uproar, need not the screw fixation, it is also very convenient to change.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an oil-free vacuum pump, includes casing (1), its characterized in that, the inner chamber middle part of casing (1) is provided with dual output shaft motor (2), all install eccentric wheel link mechanism (3) on two output shafts of dual output shaft motor (2), one side of eccentric wheel link mechanism (3) is provided with fan (4), fan (4) are all installed on the output shaft of dual output shaft motor (2), the wind direction of two fan (4) is unanimous, install fan lid (5) on the both sides wall opening of casing (1), and be provided with on the fan lid (5) of air inlet one side and dismantle filter screen (6), the top of eccentric wheel link mechanism (3) is provided with piston cylinder subassembly (7), the cylinder of piston cylinder subassembly (7) is fixed in the inner wall of casing (1), the cylinder position that the top of casing (1) corresponds piston cylinder subassembly (7) is opened has bleeder vent (8), the top of piston cylinder subassembly (7) is provided with valve metal sheet (9), the top of valve metal sheet (9) is provided with upper cover (10), be provided with first heat radiation fins (11) on the top surface of upper cover (10), be provided with strutting arrangement (12) between main part and casing (1) of dual output axle motor (2), open inside of strutting arrangement (12) has air vent (13), air vent (13) intercommunication casing (1) inside cavity of dual output axle motor (2) both sides.

2. An oil-free vacuum pump as claimed in claim 1, wherein the bottom of the casing (1) is provided with a fixing foot (14), and the middle part of the fixing foot (14) is provided with a positioning hole (15).

3. An oil-free vacuum pump as claimed in claim 2, wherein the fixing foot (14) is externally sleeved with a shock-absorbing sleeve gasket (16), and the shock-absorbing sleeve gasket (16) is provided with a corresponding groove.

4. An oil-free vacuum pump as claimed in claim 3, wherein the shock-absorbing sleeve gasket (16) is made of rubber material, and a through hole is formed at a position corresponding to the positioning hole (15) after the sleeve is sleeved.

5. An oil-free vacuum pump as claimed in any one of claims 2 to 4, wherein the fan cover (5) is provided with a spider web-like heat sink on its surface, and the detachable filter net (6) is formed in the same shape as the outer edge of the fan cover (5) and is fixed to the fan cover (5) by screws.

6. An oil-free vacuum pump according to claim 5, wherein the casing (1) is provided with second heat dissipating fins (17) at the outer side corresponding to the position of the supporting device (12), and the first heat dissipating fins (11) and the second heat dissipating fins (17) and the respective bases are of an integrally formed structure.