CN215213810U

CN215213810U - Portable full-oil-free gas supercharger

Info

Publication number: CN215213810U
Application number: CN202121343546.9U
Authority: CN
Inventors: 李文斌; 李旭光; 翟美辰; 张绍明
Original assignee: Anshan Libang Compressors Co ltd
Current assignee: Anshan Libang Compressors Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a gas compression processing technology field especially relates to a portable full oilless gas booster compressor, including cylinder cap, valve block, valve plate, cylinder body, floating piston, its characterized in that, cylinder body be two sets of perpendicular settings on the crankcase side by side, are provided with the bent axle in the crankcase, and two crank pins become 180 opposition settings, are equipped with crank pin bearing on the crank pin, lean on motor drive power, gravity and gaseous pressure differential laminating follow-up between the outer lane surface of crank pin bearing and the floating piston, two crank pin bearings and two floating piston one-to-ones. The utility model has the advantages that: 1) the multistage compressor can realize multistage compression of gas, adopts a non-connecting rod structure design, and has the advantages of small volume, light weight and compact structure. 2) The occupied space of the movement mechanism is greatly reduced, and the volume of the crankcase is reduced. 3) And a split crankcase is adopted, so that the installation, the disassembly and the maintenance are convenient. Compared with an integral crankcase structure, the structure is simple to process, light in weight, convenient to maintain and portable.

Description

Portable full-oil-free gas supercharger

Technical Field

The utility model relates to a gas compression handles technical field, especially relates to a portable oil-free gas booster compressor entirely.

Background

The gas supercharging equipment is suitable for the working environment needing to improve the gas pressure, and can improve the gas pressure to be compressed of a working system by 2-25 times. The output pressure can be adjusted to the working pressure range allowed by the working occasion by adjusting the additional pressure reducing valve. The structure of the existing pneumatic booster pump is generally a reciprocating plunger pump, the booster pump rapidly reciprocates during working, the reciprocation of the pump is slowed down until the pump stops along with the increase of output pressure, the pressure of the pump is constant at the moment, the energy consumption is lowest, and all parts stop moving. The driving gas pressure is 0.3-0.8 MPa, and the maximum output pressure is 80MPa, so that the purpose of gas pressurization is achieved.

The characteristics of plunger pump pressure boost are: 1) compressing a plurality of gases: and various gases such as air, nitrogen, water vapor, natural gas and the like can be pressurized. 2) The application range is wide: the industrial field is used for clamping a machine tool chuck, inflating an energy accumulator, inflating a high-pressure bottle, converting low-pressure gas into high-pressure gas and the like. The plunger booster pump can be adopted no matter the pressure of the air source is not high enough, and the plunger booster pump is a mechanical or testing device. 3) Automatic pressure maintaining: no matter what kind of reason causes the pressure drop of pressurize return circuit, the booster pump will start automatically, replenish the leakage pressure, keep the return circuit pressure invariable. 4) The operation is safe: the gas is adopted for driving, no electric arc and spark exist, and the gas-driven electric arc-free gas generator is completely suitable for places with flammable and explosive liquid or gas. 5) The maintenance is simple: compared with other gas-driven pumps, the booster pump can complete the same work, but has few parts and seals and is simple to maintain.

The plunger type booster driven by gas has the defects of large volume and unsuitability for small gas boosting occasions, particularly for the boosting and filling occasions of medical oxygen, the booster is required to be portable and oilless, and the existing booster equipment can not well meet the requirements of oilless and portability.

Disclosure of Invention

The utility model aims at providing a portable full oil-free gas supercharger, overcoming the defects of the prior art, adopting the design of a connecting rod-free structure, realizing the multi-stage compression of gas, optimizing a transmission mechanism, reducing the occupied space of a movement mechanism and reducing the volume of a crankcase; adopt split type crankcase structure, reduce the weight and the volume of booster compressor, make its structure compacter, satisfy the quick installation of booster compressor and dismantle the needs of maintenance.

In order to solve the above problem, the utility model adopts the following technical scheme:

a portable full oil-free gas supercharger comprises a cylinder cover, a valve plate, a cylinder body, a floating piston, a piston ring and a guide ring, wherein one end of the cylinder body is sequentially connected with the valve plate, the valve plate and the cylinder cover, the other end of the cylinder body is connected with a crankcase, the floating piston is arranged in the cylinder body, the piston ring and the guide ring are arranged on the floating piston, it is characterized in that the two groups of cylinder bodies are vertically arranged on a crankcase side by side, the crankcase is of a split structure and is formed by combining a bottom plate, a top plate and two side plates, a crankshaft is arranged in the crankcase, the crank shaft is provided with two crank pins which are oppositely arranged at 180 degrees, the crank pins are provided with crank pin bearings, the outer ring surfaces of the crank pin bearings and the floating pistons are attached and follow up by the pressure difference of motor driving force, gravity and gas, and the two crank pin bearings correspond to the two floating pistons one by one; one end of the crankshaft is provided with a driven belt wheel which is connected with a driving belt wheel arranged at the end of the motor shaft through a belt.

Furthermore, the piston rings and the guide rings are made of polytetrafluoroethylene materials, the number of the piston rings on any floating piston is 3-10, and the number of the guide rings is 2-3.

Further, the cross section of the inner cavity of each cylinder body is circular, radiating fins arranged in an array mode are arranged on the outer surface of each cylinder body, the radiating fins on two adjacent cylinder bodies are arranged in a staggered mode, a radiating fin cross arrangement area is arranged between the two cylinder bodies, and gaps of 3-15 mm are formed between two adjacent layers of radiating fins in the radiating fin cross arrangement area.

Furthermore, the shape of any fin is that a round hole is opened in the middle, and the outer contour is any one of a circle, a square, a round square, an ellipse, a rectangle and a round rectangle; the radiating fins and the cylinder body are integrally formed or connected in a welding or riveting mode; the radiating fins are in a whole-piece shape or formed by discontinuous splicing.

Furthermore, the two floating pistons respectively comprise a guide section at the lower part and a piston ring section at the upper part, the diameters of the guide sections are the same, and the diameters of the piston ring sections are different.

Furthermore, any one floating piston is at least provided with a guide section, and the guide section accounts for 20% -30% of the length of the floating piston.

Furthermore, the bottom of the crankcase is connected with a public base, and a damping ground foot is arranged below the public base.

Further, be equipped with semi-enclosed frame on the public base and including cylinder cap, cylinder body and crankcase encapsulation, be equipped with the panel on the frame, be equipped with trachea connector and adjustment handle and control button on the panel, the external dimension of frame is 500mm ~700 mm long wide 350 mm ~500mm high 600mm ~700 mm.

Compared with the prior art, the beneficial effects of the utility model are that: 1) the multistage compressor can realize multistage compression of gas, adopts a non-connecting rod structure design, and has the advantages of small volume, light weight and compact structure. 2) The transmission mechanism is optimized, a piston pin, a connecting rod and a connecting rod small-end bearing in the conventional design are omitted, the occupied space of the movement mechanism is greatly reduced, and the volume of a crankcase is reduced. 3) And a split crankcase structure is adopted, so that the machine is convenient to mount, dismount and maintain. Compared with an integral crankcase structure, the structure is simple to process, light in weight, convenient to maintain and convenient to carry.

Drawings

Fig. 1 is an external structural schematic diagram of a first axis side view angle according to an embodiment of the present invention;

fig. 2 is a schematic view of an external structure of a second shaft side view angle according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of the embodiment of the present invention;

fig. 4 is a schematic view of the gas flow direction during operation of the embodiment of the present invention.

Fig. 5 is a schematic view of a crankcase structure according to an embodiment of the present invention.

In the figure: 1-cylinder cover I, 2-valve plate I, 3-cylinder body I, 4-piston ring I, 5-floating piston I, 6-guide ring I, 8-crankcase, 9-crankshaft, 10-support bearing, 11-common base, 12-damping foot margin, 13-crank pin bearing, 14-guide ring II, 15-floating piston II, 16-piston ring II, 17-cylinder body II, 18-valve plate II, 19-valve plate, 20-cylinder cover II, 21-driven belt wheel, 22-belt, 23-driving belt wheel, 24-motor, 25-frame, 26-panel, 27-air pipe connector, 28-adjusting handle, 801-bottom plate, 802-top plate and 803-side plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

See fig. 1-5, it is the utility model relates to a portable no oily gas booster compressor embodiment schematic structure, the cylinder body is two sets of perpendicular settings side by side on crankcase 8, be equipped with among the cylinder body 3 cylinder cap 1, valve block 19, valve plate 2, cylinder body 3, floating piston 5, piston ring 4 and guide ring 6, valve plate 2, valve block 19 and cylinder cap 1 are connected gradually to the one end of cylinder body 3, the other end of cylinder body 3 is connected with crankcase 8, be equipped with floating piston 5 in the cylinder body 3, be equipped with piston ring 4 and guide ring 6 on the floating piston 5. The second cylinder body 17 is internally provided with a second cylinder cover 20, a second valve plate 19, a second valve plate 18, a second cylinder body 17, a second floating piston 15, a second piston ring 16 and a second guide ring 14, one end of the second cylinder body 17 is sequentially connected with the second valve plate 18, the second valve plate 19 and the second cylinder cover 20, the other end of the second cylinder body 17 is connected with the crankcase 8, the second floating piston 15 is arranged in the second cylinder body 17, the second piston ring 16 and the second guide ring 14 are arranged on the second floating piston 15, and in order to achieve a good guiding effect, in the embodiment, the number of the piston rings on the first floating piston 5 is 5, and the number of the first guide rings 6 is 2. The number of the piston rings on the second floating piston 15 is 8, and the number of the second guide rings 14 is 2.

The crankcase 8 is a split structure and comprises a bottom plate 801, a top plate 802 and two side plates 803, the bottom ends of the first cylinder body 3 and the second cylinder body 17 are connected with the top plate 802 of the crankcase 8, the installation and the disassembly are convenient, and the positioning effect is good. A crankshaft 9 is arranged in the crankcase 8, the crankshaft 9 is connected with the crankcase 8 through a supporting bearing 10, two crank pins are arranged on the crankshaft 9 and are oppositely arranged at 180 degrees, a crank pin bearing 13 is arranged on each crank pin, the surface of the outer ring of the crank pin bearing 13 and the floating piston are attached and follow up by the pressure difference of motor driving force, gravity and gas, and the two crank pin bearings 13 correspond to the two floating pistons one by one; one end of the crankshaft 9 is provided with a driven belt wheel 21, the driven belt wheel 21 is connected with a driving belt wheel 23 arranged at the shaft end of a motor 24 through a belt 22, and the supercharger works under the driving of the motor 24. In order to improve the energy transfer efficiency, the belt 22 is a rubber or polyurethane toothed belt, and the surfaces of the driving pulley 23 and the driven pulley 21 are provided with matching grooves.

The first piston ring 4, the first guide ring 6, the second piston ring 16 and the second guide ring 14 are all made of polytetrafluoroethylene materials, so that oil-free lubrication is realized, the cleanness of compressed gas can be guaranteed, and the requirements of medical treatment or other special occasions are met.

The cross section of the inner cavity of each cylinder body is circular, the outer surface of each cylinder body is provided with radiating fins arranged in an array mode, the radiating fins on two adjacent cylinder bodies are arranged in a staggered mode, a radiating fin cross arrangement area C is arranged between the two cylinder bodies, and gaps of 3-15 mm are formed between two adjacent layers of radiating fins in the radiating fin cross arrangement area C, so that good radiating performance is guaranteed.

The radiating fins are provided with round holes in the middle, and the outer contour can be any one of round, square, round-corner square, oval, rectangle and round-corner rectangle; the connection mode of the radiating fins and the cylinder body can be integrated or connected by adopting a welding or riveting mode; the radiating fins are in the shape of a whole piece or are formed by discontinuous splicing, and the purpose of the utility model can be realized.

In the embodiment, the structures of the first floating piston 5 and the second floating piston 15 respectively comprise a guide section at the lower part and a piston ring section at the upper part, the diameters of the guide sections are the same, the diameters of the piston ring sections are different, and according to the principle of a plunger type supercharger, the two-stage compression or the multi-stage compression can be realized by the difference of the diameters of the two pistons. A guide section A is arranged below the first floating piston 5, and the guide section A accounts for 25% of the length of the floating piston. The second cylinder body 17 is provided with a guide section B, and the guide section B accounts for 25% of the length of the cylinder body. The structure can keep the coaxiality fit of the floating piston and the inner wall of the cylinder body through the guide ring, and the piston is supported to be not contacted with the inner wall of the cylinder body, so that the aim of oil-free lubrication is fulfilled.

The bottom of the crankcase 8 is connected with a common base 11, and a damping anchor 12 is arranged below the common base 11. The common base 11 is provided with a semi-closed frame 25 for encapsulating the cylinder cover, the cylinder body and the crankcase 8, the frame 25 is provided with a panel 26, the panel 26 is provided with an air pipe connector 27, an adjusting handle 28 and a control button, and the outer dimension of the frame 25 is 580mm in length, 420mm in width, 600mm in height. The structure enhances the portable function of the supercharger and facilitates the movement.

The utility model discloses a theory of operation is: gas to be compressed enters the first-stage cylinder (the first cylinder body 3) through the gas inlet, the first floating piston 5 is pressed to the crankshaft side to complete the gas inlet process, the driving belt wheel 23 is driven by the motor 24, the driven belt wheel 21 is driven by the belt 22 to enable the crank pin bearing 13 to move upwards, the first floating piston 5 is pushed to move towards the cylinder cover side, the gas in the first-stage cylinder is compressed to certain pressure and enters the second-stage cylinder (the second cylinder body 17), and after the actions are repeated, the gas to be compressed is discharged through the exhaust port through the one-way valve (the valve plate 19), so that the whole compression process is completed.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above is only the specific implementation manner of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims

1. A portable full oil-free gas supercharger comprises a cylinder cover, a valve plate, a cylinder body, a floating piston, a piston ring and a guide ring, wherein one end of the cylinder body is sequentially connected with the valve plate, the valve plate and the cylinder cover, the other end of the cylinder body is connected with a crankcase, the floating piston is arranged in the cylinder body, the piston ring and the guide ring are arranged on the floating piston, it is characterized in that the two groups of cylinder bodies are vertically arranged on a crankcase side by side, the crankcase is of a split structure and is formed by combining a bottom plate, a top plate and two side plates, a crankshaft is arranged in the crankcase, the crank shaft is provided with two crank pins which are oppositely arranged at 180 degrees, the crank pins are provided with crank pin bearings, the outer ring surfaces of the crank pin bearings and the floating pistons are attached and follow up by the pressure difference of motor driving force, gravity and gas, and the two crank pin bearings correspond to the two floating pistons one by one; one end of the crankshaft is provided with a driven belt wheel which is connected with a driving belt wheel arranged at the end of the motor shaft through a belt.

2. A portable oil-free gas supercharger according to claim 1, wherein the piston rings and the guide rings are made of polytetrafluoroethylene material, the number of the piston rings on any one floating piston is 3-10, and the number of the guide rings is 2-3.

3. A portable oil-free gas supercharger as claimed in claim 1, wherein the cross-section of the inner cavity of the cylinder is circular, the outer surface of the cylinder is provided with heat dissipation fins arranged in an array, the heat dissipation fins on two adjacent cylinders are arranged in a staggered manner, a cross arrangement area of the heat dissipation fins is arranged between the two cylinders, and a gap of 3-15 mm is arranged between two adjacent layers of the heat dissipation fins in the cross arrangement area of the heat dissipation fins.

4. A portable oil-free gas supercharger according to claim 3, wherein the shape of any one of the heat dissipating fins is a hole with a round center, and the outer contour is any one of a circle, a square with rounded corners, an ellipse, a rectangle, and a rectangle with rounded corners; the radiating fins and the cylinder body are integrally formed or connected in a welding or riveting mode; the radiating fins are in a whole-piece shape or formed by discontinuous splicing.

5. A portable oil-free gas supercharger as claimed in claim 1, wherein the two floating pistons each have a structure comprising a lower guide section and an upper piston ring section, and the guide sections have the same diameter and the piston ring sections have different diameters.

6. A portable oil-free gas supercharger as claimed in claim 5, wherein the guide section of any one of the floating pistons is 20% to 30% of the length of the floating piston.

7. A portable oil-free gas supercharger according to claim 1, wherein the bottom of the crankcase is connected to a common base, and a shock absorbing foot is provided under the common base.

8. A portable oil-free gas supercharger according to claim 7, wherein a semi-enclosed frame is provided on the common base to enclose the cylinder head, cylinder body and crankcase, a panel is provided on the frame, a gas pipe connector, an adjusting handle and a control button are provided on the panel, and the frame has outer dimensions of 500mm to 700 mm in length, 350 mm to 500mm in width, 600mm to 700 mm in height.