CN1061078A - Engineering ceramics is made the spherical piston type air compressor of main components - Google Patents

Abstract

Its major character of spherical piston type air compressor that engineering ceramics of the present invention is made main components is that twin-tub is arranged side by side, positive machine simple and compact structure, and sphere piston stroke and cylinder bore reach 1: 1, and the single discharge capacity is big.

The cylinder liner of this air compressor, the sphere piston seal ring, it is that noise is low that breather check valve, exhaust check valve, sphere piston connecting rod bearing all become its performance with the engineering porcelain, it is low to drive function, can turn round under unlubricated oil; The air compressor relief opening is set up engineering plastics and is made bellows reduction exhaust noise.

The feature that this air compressor engineering ceramics is made main components is wear-resistant, and long service life does not need lubricant oil to turn round, and pollution-free, usage charges are low.

It is less demanding that this air compressor also can be made degree of vacuum, vacuum air pump.

Description

Engineering ceramics is made the spherical piston type air compressor of main components

The present invention relates to air compressor, using its major defect of air compressor at present is that noise is big, the lubricant oil pollution that leaks, and it is big to drive energy consumption, and working life is short.

Air compressor twin-tub of the present invention is arranged side by side, and a cylinder is by motor direct-drive, and second cylinder is by gear transmission; Piston is a sphere shape, and piston stroke and cylinder bore were than 1: 1, and the single discharge capacity is big, at the sphere piston center breather check valve is set, and offers gas-entered passageway at the connecting rod center, and positive machine simple and compact structure is set up exhaust muffling device at relief opening.

The present invention can reduce noise with its major character of engineering ceramic structures alternative metals structural member, need not lubricant oil, lowers to drive function.

Make cylinder liner and silicon carbide ceramics with silicon nitride ceramics and make spherical seal ring and form seal container and in the high speed reciprocating operation, need not lubricant oil, the friction noise, frictional heat, frictional resistance is all low.Because of the engineering ceramics physical property is a light weight, high hard and wear-resisting, high temperature resistant, do not expand with heat and contract with cold, corrosion-resistant, friction ractor is low, and for example spherical seal ring is that line contacts with cylinder wall, comprehensive above-mentioned factors, and it is low to drive function, it is little for pottery and pottery friction noise, frictional heat, and frictional resistance is all low, it is little by noise in the running of ceramic structures assembling air compressor, long service life, it is low to drive energy consumption, the pollution that leaks of unlubricated oil.

Air compressor relief opening of the present invention is set up exhaust noise silencing mechanism, this silencer mechanism comprises that two and half distinguish R bellows and gas shunting air guide sleeve, two and half distinguish R bellows engineering plastics ABS injection molded, the gas flow guiding cover is shaped with the engineering plastics nylon injection-molding, its noise reduction principle is to distinguish in the involutory metal sleeve of packing into two and half to reinstall air guide sleeve, assembling baffler docks with exhaust outlet of compressor, compressor is discharged high pressure zone gas body and is at first shunted by air guide sleeve, force gas to move along Bo Wen Guan Week wall, because the concavo-convex R groove of bellows more piece, gas shrinks repeatedly, expand, and generation vortex, make the gas interior molecule produce in anti-coagulating action, reach noise reduction and reduce gas flow rate, plastic film capicitor also absorbs partly high energy gas and produces high frequency noise and the tube wall noise that rubs that impulses on the other hand.

This silencer mechanism also can be suitable for the I. C. engine exhaust noise reduction, makes bellows and air guide sleeve as long as use high-alumina potter's clay instead, because high-alumina potter's clay energy is high temperature resistant and corrosion, the moldable shaping of high-alumina potter's clay, once sintered, manufacturing process is simple and easy, and cost of production is lower.

Further specify below in conjunction with embodiment shown in the drawings.

Fig. 1 is this blowing plant general structure schematic representation.

Fig. 2 inlays silicon nitride ceramics in the sphere piston connecting rod and makes bearing.

Fig. 3, ABS engineering plastics injection molded two and half is distinguished the bellows schematic representation.

Fig. 4, silicon carbide ceramics make the spherical seal ring schematic representation.

Fig. 5, engineering plastic nylon injection molded gas shunting air guide sleeve schematic representation.

Fig. 6, silicon carbide ceramics make air inlet one-way sealing valve schematic representation.

Fig. 7, silicon carbide ceramics make exhaust one-way sealing valve schematic representation.

Fig. 8, silicon nitride ceramics make the cylinder liner schematic representation.

Fig. 9, metal sphere piston structure feature schematic representation.

Figure 10, silicon nitride ceramics make the stationary ring schematic representation.

Fig. 1, this air compressor shown in Figure 10 all device comprise the engineering ceramics structural member, inlay silicon nitride ceramics in the sphere piston connecting rod and make bearing; The configuration silicon carbide ceramics is made spherical seal ring in the sphere piston; Inlay silicon nitride ceramics in the metal cylinder block and make cylinder liner; Silicon carbide ceramics is made air inlet one-way sealing valve, exhaust one-way sealing valve; The silicon nitride ceramics of dynamic seal (packing) is made stationary ring; The air compressor relief opening is set up silencer mechanism.

1, becoming its key character of air compressor main components alternative metals part with the engineering porcelain is to reduce noise, with the driving function, exempts from the lubricant oil of annotating, prolong working life, the pollution that leaks of unlubricated oil, comprehensive above-mentioned advantage is because the engineering ceramics good physical, light weight and high hard, wear-resisting and corrosion-resistant, do not expand with heat and contract with cold, friction ractor is low, have only 0.01, the ceramic fitting surface is through grinding, and it is high finishingness that polishing can reach mirror-like, is used for relative friction, under unlubricated oil, do not increase frictional resistance and frictional heat yet, another factor is that water is the engineering ceramics oiling agent, and an air middle part part steam is reduced into water in compression process, therefore can significantly reduce the driving function.

2, the suction valve of this air compressor is different with the outlet valve layout with conventional air compressor suction valve with outlet valve layout and structure, suction valve is arranged in the sphere piston, offer gas-entered passageway in the sphere connecting rod, suction valve and outlet valve do not need with pressing the king to force closure, the closure of valve and lifting are that piston upper chamber is a vacuum when utilizing sphere piston descending, air pushes air inlet one-way sealing valve by the connecting rod central passage, give cylinder charge, air-breathing up to the piston lower limit, inspiratory duration is long, when piston changes up, piston upper chamber boosts, air inlet one-way sealing valve is satisfied closed voluntarily down, be sealed into gas port, the lifting exhaust voluntarily of epicoele supercharging outlet valve, with breather check valve and the exhaust one-way sealing valve that engineering ceramic carbon silicon is made, it is characterized in that the engineering ceramics light weight and height is wear-resisting firmly, seal valve is closed, and it is little with metal bump sound, significantly reduce the closed collision noise of valve, can increase working life again.

3, the relief opening of air compressor is set up exhaust noise silencing mechanism, this mechanism comprises metal sleeve, two and half distinguish the combination bellows, material ABS engineering plastics, technology is injection molded, recombinant gas shunting air guide sleeve, its noise reduction principle is air compressor to be discharged high pressure zone gas body shunt through the gas flow guiding cover, force gas to move along Bo Wen Guan Week wall, because the concavo-convex R groove of bellows more piece, gas constantly shrinks along smooth R groove, expand and force laminar flow gas to be transformed into eddy airstream, form produce between gas molecule in anti-coagulating action and cause reducing gas flow rate, plastic film capicitor also can absorb partly high energy gas noise and gas and the tube wall noise that rubs that impulses simultaneously, comprehensive above-mentioned noise reduction principle, this silencer mechanism can significantly reduce exhaust noise.

The also applicable I. C. engine exhaust noise reduction of this silencer mechanism is packed into and is made baffler in the metal sleeve and can bear internal-combustion engine and discharge high temperature and etchant gas as long as use high-alumina potter's clay die forming bellows and gas air guide sleeve instead.

4, engineering ceramics structural member manufacturing process is a die forming, the sintering process program is a double sintering, with the modified burr of die forming biscuit, and check, carry out once sintered, the not high easy processing of semi-finished product hardness this moment can be carried out turning, processing such as honing, through the good ceramic fitting of fine finishing more after the assay was approved, the finished product sintering sinters finished product and also will carry out precision machining once more, grinds, the electrical pulse grinding, processing such as polishing are then with the epoxy resin glue that mixes superfine cupper powder, metallizing shape chamber, ceramic fitting is put into the shape chamber, and the location is after be heating and curing in the vacuum.

Air inlet one-way sealing valve, exhaust one-way sealing valve, ring and seal ring are through grinding, and polishing can be assembled.

Claims (4)

1, engineering ceramics is made the spherical piston type gas compressor of main components, its general structure device comprises that (4) silicon carbide makes spherical seal ring and (8) silicon nitride and make cylinder sleeve and form friction pair (9) sphere piston head center and ceramic seal valve (6) is set forms admission gear with the connecting rod eye, relief opening is provided with silencer and comprises compositions such as (3) bellows and air guide sleeve, (2) to it is characterized in that driving function low for the positive machines of composition such as the ceramic bearing of crank throw bearing pin and (10) ceramic stationary ring, noise is little, spreadable life is long, the oiling agent of importantly need not annotating.

2, device according to claim 1, porcelain become spherical seal ring and pottery to make cylinder sleeve to form the dynamic friction pair and it is characterized in that under the high speed relative movement, surface friction drag and frictional heat are all low, the oiling agent of need not annotating.

3, it is air-breathing voluntarily when forming admission gear and it is characterized in that descent of piston that device according to claim 1, sphere piston head center are provided with ceramic seal valve and connecting rod central passage.

4, silencer according to claim 1, two and half distinguish that forming bellows and gas flow guiding closure assembly generates vortex at the pressurized gas bellows of flowing through, and reduces flow velocity.

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