CN110107473A

CN110107473A - The oil-free piston type air compressor of used in new energy vehicles

Info

Publication number: CN110107473A
Application number: CN201910289633.1A
Authority: CN
Inventors: 邬泽强; 王少鹏; 方优正; 章胡杰
Original assignee: Zhejiang Keli Vehicle Control System Co Ltd
Current assignee: Zhejiang Keli Vehicle Control System Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2019-08-09
Anticipated expiration: 2039-04-11
Also published as: CN110107473B

Abstract

The present invention relates to air compressor machine technical fields, disclose the oil-free piston type air compressor of used in new energy vehicles, including crankcase, cylinder body, cylinder head component, piston cylinder is equipped in cylinder body, cylinder body is located at the top of crankcase and connect with crankcase, cylinder head component is located at the top of cylinder body and connect with cylinder body, the front side of cylinder body is equipped with the low pressure heat exchanger connecting with crankcase, the right end of cylinder body is equipped with the manifold blocks connecting with cylinder body, manifold blocks are connected with low pressure heat exchanger by the first water inlet pipe, the left end of low pressure heat exchanger is equipped with the first water outlet, first water outlet is connect by the first drainpipe with cylinder head component；The rear side of cylinder body is equipped with the high pressure heat exchanger connecting with crankcase, and manifold blocks are connected with high pressure heat exchanger by the second water inlet pipe, and the left end of high pressure heat exchanger is equipped with the second water outlet, and the second water outlet is connect by the second drainpipe with cylinder head component.The present invention uses water cooling and the air-cooled double acting type of cooling, is fully cooled, effect is more preferable.

Description

The oil-free piston type air compressor of used in new energy vehicles

Technical field

The present invention relates to air compressor machine technical field more particularly to a kind of oil-free piston type air compressors of used in new energy vehicles.

Background technique

The oil-free piston type air compressor of used in new energy vehicles mainly includes crankcase, cylinder body, cylinder head, motor, crankshaft, connecting rod, work The components such as plug, radiator fan, current oil-free piston type air compressor mostly use greatly single stage compress mode, this single stage compress mode Energy consumption is high, gas pressure is relatively low；In addition, these oil-free piston type air compressors are all made of fan air blast cooling heat dissipation at present, it is this Bad mainly by convection current heat loss through conduction mode heat dissipation effect, heat exchange efficiency is also low, air compressor cylinder body, cylinder head, particularly connecting rod, work The heat of the internal motions parts such as plug gathers for a long time, and temperature can not be reduced quickly and effectively, inner wall, piston ring, bearing of cylinder body etc. The service life for the component for having relative friction to move is substantially reduced, even more so that bearing grease fails and is lost because of high temperature； Secondly as the radiator fan type of cooling, which there is also windward side and leeward cooling effect are inconsistent, will lead to cylinder body, occurs shape Become, increases friction；In addition inevitably there are the foreign matters such as dust, silt, water in the installation environment of air compressor machine, be easy to cause fan Blocking, makes the blow rate required decline to a great extent, and cooling effect becomes worse and worse, finally influences properties of product, leads to reduced service life, Chinese invention patent application (application number: 201610588870.4) discloses a kind of oil-free pneumatics of two stages of compression vehicle piston Machine, it is connected by motor, filter structure, flywheel shaft, low-pressure piston cylinder, high-pressure piston cylinder, low-pressure piston link assembly, high pressure piston The structure compositions such as bar assembly, low pressure outlet valve board assembly, high pressure outlet air valve board assembly, middle cooler, aftercooler；Low-pressure piston Cylinder and high-pressure piston cylinder are in horizontally-opposed structure, and piston cylinder, that the exhaust bodies main component such as valve plate and cylinder cap is all made of fan is strong The type of cooling processed is cooled down.Not only there is cooling capacity deficiency in fan coolling mode, but also inevitably exist Windward side and leeward cooling effect difference are big, and the deformation that can seriously cause body to generate by thermal expansion is inconsistent, influence complete machine Stability causes short service life.In addition insufficient in inside, heat, which constantly gathers, leads to piston ring and guide sleeve In addition premature wear also will cause the bearing grease on crankshaft-link rod component and be lost failure and cause bearing premature abrasion；Pressure Contracting gas is cooled down using the cold row's cooler of flat tube aluminum fin-stock, and heat-sinking capability is limited, in addition due to air velocity height, compressed gas Body can not effectively be radiated in a short time, and delivery temperature is still very high；In addition, between low-pressure piston cylinder and high-pressure piston cylinder Water provided with an intercooler, during gas carries out cooling in this intercooler, in compressed air Steam is aggregated in radiator forms water droplet to the cold, that is, cascade EDFA bleed phenomenon, and condensed water once enters high pressure and lives Plug cylinder can then cause the components such as casing wall and piston badly damaged.

Summary of the invention

The present invention is provided for low efficiency, the disadvantage that energy consumption is high, working service is at high cost, the service life is short in the prior art A kind of oil-free piston type air compressor of used in new energy vehicles high-efficient, energy consumption is small, working service is at low cost, the service life is long.

In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:

The oil-free piston type air compressor of used in new energy vehicles, including crankcase, cylinder body, cylinder head component, cylinder body is interior to be equipped with piston cylinder, Cylinder body is located at the top of crankcase and connect with crankcase, and cylinder head component is located at the top of cylinder body and connect with cylinder body, cylinder body Front side is equipped with the low pressure heat exchanger that connect with crankcase, and the right end of cylinder body is equipped with the manifold blocks connecting with cylinder body, manifold blocks and low Heat exchanger is pressed to connect by the first water inlet pipe, the left end of low pressure heat exchanger is equipped with the first water outlet, and the first water outlet passes through first Drainpipe is connect with cylinder head component；The rear side of cylinder body is equipped with the high pressure heat exchanger connecting with crankcase, manifold blocks and high pressure heat exchange Device is connected by the second water inlet pipe, and the left end of high pressure heat exchanger is equipped with the second water outlet, and the second water outlet passes through the second drainpipe It is connect with cylinder head component, the crankshaft main body connecting with crankcase is equipped in crankcase, crankshaft main body includes crankshaft disk and and crankshaft The axle journal of disk connection, axle journal includes the low pressure axle journal connecting with low-pressure piston and the high pressure axle journal connecting with high pressure piston, low pressure Axle journal and high pressure axle journal are respectively provided at the two sides of crankshaft disk, and low pressure axle journal and high pressure axle journal are eccentrically set on the two of crankshaft disk respectively Side, low pressure axle journal and high pressure axle journal are arranged in parallel.Cooling water is divided into three tunnels in manifold blocks, and a routing side of cylinder block enters machine Body, the road cooling water carry out circulating cooling to crankcase, cylinder body, cylinder head component, then flow into cylinder head component internal；Second road warp Low pressure heat exchanger is entered by the first water inlet pipe, which is rapidly cooled low-pressure compressed air, then via first Drainpipe flows into cylinder head component internal；Third road enters high pressure heat exchanger via the second water inlet pipe, and the road cooling water is to high pressure pressure Contracting air is rapidly cooled, and then flows into cylinder head component internal via the second drainpipe；The cooling system cooling efficiency is high, scattered Thermal velocity is fast, can effectively protect the critical component of air compressor machine and extends its service life, and low pressure axle journal and high pressure axle journal are symmetrically arranged at axis The both ends of the same diameter of disk, the end of low pressure axle journal are connect with reel, and the end of high pressure axle journal is equipped with balance weight, and assembly is completed Afterwards, duplicate removal is combined by reel and crankshaft disk, the center of gravity of this technology is located on the central axis of crankshaft disk, may be implemented to fill With the accurate dynamic balancing matching of this technology after the completion, in crankshaft main body high-speed rotation, rotatory inertia torque levels off to zero, and And there is certain rotary inertia, it can make air compressor machine that there is good acceleration in the case where air compressor machine can not configure flywheel Energy.

Preferably, cylinder head component includes the cylinder cap connecting with cylinder body and the cylinder cap plate being located above cylinder cap, cylinder cap plate with Cylinder cap is connected by screw to, and cylinder cap is equipped with the first water inlet connecting with the first drainpipe and connect with the second drainpipe second Water inlet is equipped in cylinder cap from top to bottom to the inner cavity of lower recess, and inner cavity and cylinder cap plate form cooling water cavity, the first water inlet and Second water inlet is communicated with cooling water cavity respectively, and the front side of cylinder cap is equipped with the first discharge outlet communicated with the first water inlet, cylinder cap Rear side be equipped with the second discharge outlet for communicating with the second water inlet.When cooling water collects inside cooling water cavity, in cylinder head component Inside is formed around noise reduction water band, can effectively be absorbed and be reduced the noise intensity in exhaust noise source, play noise abatement noise reduction Effect.

Preferably, the right end of cylinder body is equipped with the cylinder body water inlet that communicates with manifold blocks, cylinder body includes from outside to inside successively The outer wall of cylinder block and inboard wall of cylinder block of setting, cylinder body is surrounded by outer wall of cylinder block to be formed, and piston cylinder is surrounded by inboard wall of cylinder block to be formed, cylinder body It is equipped with water channel outer wall between outer wall and inboard wall of cylinder block, forms cooling water channel, cooling water channel edge between inboard wall of cylinder block and water channel outer wall Inboard wall of cylinder block annular the outside of piston cylinder is set, water channel reinforcing rib, the two sides point of water channel reinforcing rib are equipped in cooling water channel It is not connect with inboard wall of cylinder block and water channel outer wall.The upper end of crankcase is equipped with the water channel cooperated with piston cylinder, and water channel is located at cooling water It the lower section in road and is communicated with cooling water channel, in piston cylinder outer wall around the structural shape of setting cooling water channel, cooling water is in cooling Flowing forms a cooling jacket in water channel, and rapid advantage high using water cooling heat exchange efficiency, cooling can carry out cylinder body abundant Cooling, water channel reinforcing rib increases the bonding strength of inboard wall of cylinder block and water channel outer wall, after so that cylinder body is able to bear biggish vibration according to It is old to work normally, extend the service life of cylinder body and enhances the working strength of cylinder body.

Preferably, water channel reinforcing rib includes the first water channel reinforcing rib and the second water channel reinforcing rib, the first water channel reinforcing rib Upper end flushed with the upper end of the upper end of inboard wall of cylinder block and water channel outer wall, the upper end of the second water channel reinforcing rib is lower than the first water The upper end of road reinforcing rib is equipped with top horizontal runner, top horizontal between the upper end of water channel outer wall and the upper end of inboard wall of cylinder block Runner is located at the top of the second water channel reinforcing rib.The difference in height of first water channel reinforcing rib and the second water channel reinforcing rib forms top water Advection road, cooling water adjust cooling water in the stream of top horizontal runner in top horizontal runner, through the first water channel reinforcing rib Speed extends the time of contact of cooling water and inboard wall of cylinder block, improves the efficiency of cooling water heat exchange.

Preferably, the lower end of water channel reinforcing rib flushes, the lower end of water channel reinforcing rib is higher than the upper of water channel outer wall End, is equipped with bottom level runner between the lower end of water channel outer wall and the lower end of inboard wall of cylinder block, bottom level runner is located at water channel The lower section of reinforcing rib, the first water channel reinforcing rib are laid on the outside of piston cylinder, and the second water channel reinforcing rib is located at the reinforcement of the first water channel Between muscle.Cooling chamber is formed between each water channel reinforcing rib, cooling water is each by bottom level runner flow direction after entering from the inlet In a cooling chamber, bottom level runner plays the role of evenly dispersed cooling water, is formed and is cooled down in cooling water piston cylinder periphery Water jacket enables cooling water to carry out piston cylinder whole cooling, enhances the effect of heat dissipation, piston cylinder includes big piston cylinder and small work The water channel reinforcing rib of the structure setting adaptation of plug cylinder, the big piston cylinder of water channel reinforcing rib and small piston cylinder, improves the utilization of cooling water Rate.

Preferably, connected between water channel outer wall and outer wall of cylinder block by reinforcing rib, reinforcing rib, water channel outer wall, outside cylinder body Wall surrounds to form sound insulation chamber, and sound insulation is intracavitary equipped with the fixed frame connecting with cylinder body, the lower end of fixed frame and the lower end of sound insulation chamber Portion flushes, and the upper end of fixed frame is located at that sound insulation is intracavitary, and fixed frame includes cylindrical body and the dowel that connect with cylindrical body periphery, Cylindrical body is connect by dowel with cylinder body, and installation through-hole is offered in the middle part of cylindrical body.Cooling water channel periphery setting every Piston and inlet and outlet valve are carried out effective isolation and abatement in the noise that the course of work generates using sound insulation chamber, shown by sound chamber The work noise for reducing complete machine is write, enhances the bonding strength of outer wall of cylinder block and water channel outer wall by fixed frame, fixed frame is by sky The cylindrical body and dowel stroke of the heart, reduce the carrier of noise transmission and Vibration propagation, to enhance cylinder body at work Stability.

Preferably, crankcase upper end is equipped with the bar shaped air inlet that is arranged from front to back, be equipped with above bar shaped air inlet with The inlet suction port of crankcase connection, crankcase upper end two sides are equipped with two inlet channels disposed in parallel, inlet channel by it is left extremely Right laterally setting, the left part of inlet channel are communicated with bar shaped air inlet, and the right side of crankcase is equipped with the sky connecting with crankcase Component is filtered, air filter component includes air filter shell and the air filtering core for being located at air filter housing cavity, and the upper end two sides of air filter shell are set There is the air filter air inlet communicated with inlet channel right end, air filter air inlet is communicated with the inner cavity of air filter shell, in the middle part of air filtering core Equipped with air filter gas outlet, communicated inside air filter gas outlet and crankcase.Air inlet gas warp after external primary air filter primary filter Inlet suction port sucks, and enters the last essence of built-in air filter component progress via crankshaft upper box part two sides inlet channel and filters, after refined filtration Air enter crankcase, it is ensured that air inlet is clean, at the same in air filter component moving component and bearing carry out it is effectively cooling, it is empty It is big to filter component capacity, filtering accuracy is high, can more effectively filter out dust and particle in air inlet as third level filter device, keep away It is worn caused by exempting to enter because of the impurity in air inlet in cabinet to moving component and bearing, can effectively extend machine life, crankshaft Case uses two parallel inlet channels, effectively reduces induction noise, while also facilitating cold to crankcase progress by air inlet But.

Preferably, being equipped with the low-pressure piston moved up and down in piston cylinder in piston cylinder, opened up at the top of low-pressure piston Have a venthole, the top of venthole is equipped with the air-intake valve plate being covered on venthole, the top of air-intake valve plate be equipped be pressed on into Compression elastic slice on air valve plate compresses elastic slice by being fixedly connected at the top of dogbolt and low-pressure piston.It is set on air-intake valve plate There is the air inlet elastic slice of covering venthole, gas opens the air inlet on air-intake valve plate by low-pressure piston after air filter component refined filtration Elastic slice enters in the low-pressure cylinder of piston cylinder, and on the access that entire air inlet flows through, the air inlet gas of sucking is to the fortune flowed through Dynamic component and bearing carry out effectively cooling one by one, the stability of the service life and work of raising moving component and bearing.

Preferably, being equipped with valve plate between cylinder cap and cylinder body, valve plate is equipped with low pressure valve plate and high pressure valve plate, low pressure valve plate It is located at the top of piston cylinder with the cooperation of high pressure valve plate, is set on low pressure valve plate there are four the rectangular low pressure exhaust hole uniformly arranged, it is high Pressure valve plate is equipped with high pressure gas hole, and the upper surface of low pressure valve plate is equipped with the low-pressure vent valve being fixedly connected with low pressure valve plate Piece, low pressure exhaust valve block are covered on above low pressure exhaust hole, and the upper surface of high pressure valve plate is equipped with to be fixedly connected with high pressure valve plate High pressure gas valve block, high pressure gas valve block is covered on above high pressure gas hole, is additionally provided on high pressure valve plate and is from top to bottom recessed The first high pressure admission chamber and the first high pressure admission bottom of chamber portion high pressure air intake hole, high pressure air intake hole and the first high pressure admission chamber are equal It is located at the right side in high pressure gas hole, the lower end surface of high pressure valve plate is equipped with the high pressure admission valve block being fixedly connected with high pressure valve plate, High pressure admission valve block is covered on the lower section of high pressure air intake hole.Low pressure exhaust valve block, high pressure gas valve block, high pressure admission valve block are logical Rivet is crossed to be fixed on valve plate, fixed form mechanism is simple, it is solid and reliable, prevent from loosening, installation space it is smaller, be easier to realize from Dynamic pressure dress；Air of the low-pressure piston in piston cylinder in upward motion compresses piston cylinder mesolow piston cylinder, low-pressure compressed air Reach the low pressure exhaust valve block pushed open after pressure at expulsion on low pressure valve plate and enter low pressure heat exchanger via cylinder cap and is cooled down, low pressure The height that high pressure admission valve block enters in piston cylinder is opened downwards via the first high pressure admission chamber by cylinder cap after compressed gas is cooling Press piston cylinder, the high pressure piston compressed air from low pressure (LP) cylinder that upward motion compresses suck in high-pressure piston cylinder to exhaust pressure After power, after high pressure piston moves to top dead centre, gas in the jar is compressed into high pressure air to push high pressure gas valve block open, then Enter that high pressure heat exchanger is cooling, and this technology structure is simple by cylinder cap, required installation space it is smaller, compression efficiency is higher.

Preferably, cylinder cap is equipped with low pressure exhaust chamber, high pressure gas chamber, the second high pressure admission of indent from the bottom to top Chamber, low pressure exhaust chamber are located at the top of low pressure exhaust valve block, and high pressure gas chamber is located at the top of high pressure gas valve block, the second high pressure Inlet chamber is located at the top of the first high pressure admission chamber and communicates with the first high pressure admission chamber, and the front end of cylinder cap is equipped with and low pressure exhaust The low pressure exhaust channel that chamber communicates, low pressure exhaust channel are connect with the upper end on the right side of low pressure heat exchanger by low pressure (LP) cylinder exhaust pipe, The right end of cylinder cap is equipped with the high pressure admission channel communicated with the second high pressure admission chamber, high pressure admission channel and low pressure heat exchanger right side Lower end connected by high pressure cylinder air inlet pipe, the rear end of cylinder cap is equipped with the high pressure gas channel communicated with high pressure gas chamber, high pressure Exhaust passage is connect with the upper end on the right side of high pressure heat exchanger by high pressure cylinder exhaust pipe, and the lower end on the right side of high pressure heat exchanger is equipped with row Port.Low-pressure compressed air, which reaches, pushes low pressure exhaust valve block on low pressure valve plate after pressure at expulsion open successively via low pressure exhaust Chamber, low pressure exhaust channel, low pressure (LP) cylinder exhaust pipe enter low pressure heat exchanger and are cooled down, and successively pass through after low pressure compressed gas is cooling High pressure cylinder air inlet pipe, high pressure admission channel, the second high pressure admission chamber, the first high pressure admission chamber open downwards high pressure admission valve block into Enter the high-pressure piston cylinder in piston cylinder, after high pressure piston moves to top dead centre, gas in the jar be compressed into high pressure air with It pushes high pressure gas valve block open, then successively enters high pressure heat exchanger by high pressure gas chamber, high pressure gas channel, high pressure cylinder exhaust pipe Cooling, compressed air after cooling is discharged through exhaust outlet, with the cryogenic high pressure state of appropriateness be transported to rear end with air pipe and Element.

The present invention has significant technical effect: completely new straight arrangement double-cylinder two-stage pressure due to using above technical scheme Shrinking structure, the air-cooled double loop of complete machine water cooling is cooling, devises completely new crankcase, gray iron, valve plate, air intake structure, combination Between formula crankshaft, monoblock type connecting rod, air inlet and exhaust valve, grade, whole cold heat exchanger；Using completely new " complete machine water cooling and compressed gas two-stage Water cooling " cooling system cooperates the air-cooled auxiliary of air intake structure, and it is not in localized hyperthermia in the course of work that cooling effect is excellent, row Temperature degree is also lower, to improve Service Life of Piston Ring, makes lubricating grease amount in bearing that can ensure bearing best always Lubricating status；Using completely new crankcase, which is equipped with internal air intake duct, effectively reduces induction noise, adopt simultaneously With exclusive piston cylinder structure, which is equipped with circulating type cooling water channel and independent sound insulation chamber, carries out imitating to complete machine Noise is reduced while having cooling, is also integrated with the built-in air filter of larger capacity, it is ensured that air inlet is clean.

Detailed description of the invention

Fig. 1 is schematic perspective view of the invention.

Fig. 2 is schematic diagram of internal structure of the invention.

Fig. 3 is the first schematic perspective view of cylinder cap.

Fig. 4 is the second schematic perspective view of cylinder cap.

Fig. 5 is the upper view structural schematic diagram of valve plate.

Fig. 6 is the lower view structural schematic diagram of valve plate.

Fig. 7 is the upper view structural schematic diagram of cylinder body.

Fig. 8 is the lower view structural schematic diagram of cylinder body.

Fig. 9 is the first schematic perspective view of cylinder body.

Figure 10 is the second schematic perspective view of cylinder body.

Figure 11 is the third schematic perspective view of cylinder body.

Figure 12 is the schematic perspective view of low-pressure piston.

Figure 13 is the schematic perspective view of crankcase.

Figure 14 is air filter component schematic perspective view.

Figure 15 is the schematic diagram of internal structure of crankcase and cylinder body

Figure 16 is the partial enlarged view in the portion M in Figure 14.

Figure 17 is the partial enlarged view in the portion N in Figure 14.

Figure 18 is the partial enlarged view in the portion O in Figure 14.

Figure 19 is the partial enlarged view in the portion P in Figure 14.

Figure 20 is the partial enlarged view in the portion I in Figure 14.

Figure 21 is the structural schematic diagram of crankshaft main body.

Figure 22 is the structural schematic diagram of reel.

Figure 23 is the structural schematic diagram of balance weight.

Figure 24 is the assembling structure schematic diagram of reel and left roller bearing.

The toponym that each number designation is referred in attached drawing is as follows: 1-crankcase, 2-cylinder bodies, 3-cylinder head components, 4-piston cylinders, 5-low pressure heat exchangers, 6-manifold blocks, the 7-the first water inlet pipe, the 8-the first water outlet, the 9-the first drainpipe, 10-high pressure heat exchangers, the 11-the second water inlet pipe, the 12-the second water outlet, the 13-the second drainpipe, 14-cylinder caps, 15-cylinders Cover board, 16-screws, the 17-the first water inlet, the 18-the second water inlet, 19-inner cavities, 20-cooling water cavities, 21-first rows The mouth of a river, the 22-the second discharge outlet, 23-bar shaped air inlets, 24-inlet suction ports, 25-inlet channels, 26-air filter components, 27-air filter shells, 28-air filtering cores, 29-air filter air inlets, 30-air filter gas outlets, 31-cylinder body water inlets, 32- Outer wall of cylinder block, 33-inboard wall of cylinder block, 34-water channel outer walls, 35-cooling water channels, 36-water channel reinforcing ribs, 37-top horizontals Runner, 38-bottom level runners, 39-reinforcing ribs, 40-sound insulation chambers, 41-fixed frames, 42-cylindrical bodies, 43-connections Muscle, 44-installation through-holes, 45-low-pressure pistons, 46-ventholes, 47-air-intake valve plates, 48-compress elastic slices, 49-valve plates, 50-low pressure valve plates, 51-high pressure valve plates, 52-low pressure exhaust holes, 53-high pressure gas holes, 54-low pressure exhaust valve blocks, 55- High pressure gas valve block, the 56-the first high pressure admission chamber, 57-high pressure air intake holes, 58-low pressure exhaust chambers, 59-high pressure gas chambers, 60-the second high pressure admission chamber, 61-low pressure exhaust channels, 62-high pressure gas channels, 63-exhaust outlets, the 64-the first water channel Reinforcing rib, the 65-the second water channel reinforcing rib, 66-high pressure admission valve blocks, 67-high pressure admission channels, the exhaust of 68-low pressure (LP) cylinders Pipe, 69-high pressure cylinder air inlet pipe, 70-high pressure cylinder exhaust pipes, 71-water inlets, 72-water channels, 73-high pressure pistons, 74-songs Shaft body, 75-crankshaft disks, 76-axle journals, 77-low pressure axle journals, 78-high pressure axle journals, the 79-the first roller bearing seat, 80- Reel, the 81-the first threaded hole, the 82-the first bolt, the 83-the first bolt head, 84-bolts hole, 85-lock washers, 86- Reel mounting base, the 87-the first deep groove ball bearing seat, 88-First terraces, 89-mounting holes, the 90-the second deep groove ball bearing Seat, 91-second step faces, 92-balance weights, the 93-the second threaded hole, the 94-the second bolt, 95-circular mounting seats, 96- Plain washer, 97-interconnecting pieces, 98-fan-shaped balance portions, the 99-the second bolt head, 100-through-holes, 101-upper grooves, 102- Repeated hole, the 104-the second roller bearing seat, 105-left roller bearings, 106-mounting grooves, 107-the first are matched in lower groove, 103- Support sleeve, the 108-the first gland, the 109-the first seal groove, the 110-the first sealing ring, the 111-the second seal groove, 112-the Two sealing rings, 113-low pressure connecting rods, the 114-the first deep groove ball bearing, the 115-the first cover board, the 116-the first screw, 117- The first adjustment snare, 118-high-pressure connecting rods, the 119-the second deep groove ball bearing, the 120-the second cover board, the 121-the second screw, 122-second adjustment snares, 123-right roller bearings, the 124-the second support sleeve, 125-third seal grooves, 126-thirds are close Seal, the 127-the second gland, the 128-the four seal groove, the 129-the four sealing ring.

Specific embodiment

Present invention is further described in detail with embodiment with reference to the accompanying drawing.

Embodiment 1

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, including crankcase 1, cylinder body 2, cylinder head group Part 3, cylinder body 2 is interior to be equipped with piston cylinder 4, and cylinder body 2 is located at the top of crankcase 1 and connect with crankcase 1, and cylinder head component 3 is located at cylinder It the top of body 2 and is connect with cylinder body 2, the front side of cylinder body 2 is equipped with the low pressure heat exchanger 5 connecting with crankcase 1, the right end of cylinder body 2 Equipped with the manifold blocks 6 connecting with cylinder body 2, manifold blocks 6 and low pressure heat exchanger 5 are connected by the first water inlet pipe 7, low pressure heat exchanger 5 Right end be equipped with the first water outlet 8, the first water outlet 8 is connect by the first drainpipe 9 with cylinder head component 3；The rear side of cylinder body 2 is set There are the high pressure heat exchanger 10 connecting with crankcase 1, manifold blocks 6 and high pressure heat exchanger 10 to connect by the second water inlet pipe 11, high pressure The rear end of heat exchanger 10 is equipped with the second water outlet 12, and the second water outlet 12 is connect by the second drainpipe 13 with cylinder head component 3.Discrimination The rear end face of plumber block 6 is equipped with water inlet 71, and the cooling water of main road water cooling system enters manifold blocks 6 by water inlet 71, cold But water is divided into three tunnels in manifold blocks 6, and routing 2 side of cylinder body enters fuselage, and the road cooling water is to crankcase 1, cylinder body 2, cylinder Head assembly 3 carries out circulating cooling, then flows into inside cylinder head component 3；Second tunnel enters low pressure heat exchanger via the first water inlet pipe 7 5, which is rapidly cooled low-pressure compressed air, then flows into inside cylinder head component 3 via the first drainpipe 9； Third road enters high pressure heat exchanger 10 via the second water inlet pipe 11, which is rapidly cooled high pressure air, Then it is flowed into inside cylinder head component 3 via the second drainpipe 13；The cooling system cooling efficiency is high, radiating rate is fast, can be effective It protects the critical component of air compressor machine and extends its service life.

Cylinder head component 3 includes the cylinder cap 14 connecting with cylinder body 2 and the cylinder cap plate 15 for being located at the top of cylinder cap 14, cylinder cap plate 15 with Cylinder cap 14 is connected by screw 16, cylinder cap 14 be equipped with the first water inlet 17 being connect with the first drainpipe 9 and with the second drainpipe Second water inlet 18 of 13 connections, cylinder cap 14 is interior to be equipped with from top to bottom to the inner cavity of lower recess 19, inner cavity 19 and 15 shape of cylinder cap plate At cooling water cavity 20, cooling water cavity 20 is communicated with the first water inlet 17 and the second water inlet 18 respectively, and the front side of cylinder cap 14 is equipped with The first discharge outlet 21 communicated with the first water inlet 17, the rear side of cylinder cap 14 are equipped with the second row communicated with the second water inlet 18 The mouth of a river 22.When cooling water collects inside cooling water cavity 20, formed inside cylinder head component 3 around noise reduction water band, it can be effective The noise intensity for absorbing and reducing exhaust noise source, plays the role of noise abatement noise reduction.

The right end of cylinder body 2 is equipped with the cylinder body water inlet 31 communicated with manifold blocks 6, and cylinder body 2 includes setting gradually from outside to inside Outer wall of cylinder block 32 and inboard wall of cylinder block 33, cylinder body 2 is surrounded by outer wall of cylinder block 32 to be formed, and piston cylinder 4 surrounds shape by inboard wall of cylinder block 33 At, between outer wall of cylinder block 32 and inboard wall of cylinder block 33 be equipped with water channel outer wall 34, formed between inboard wall of cylinder block 33 and water channel outer wall 34 cold But the outside of piston cylinder 4 is arranged in along 33 annular of inboard wall of cylinder block, is equipped with water in cooling water channel 35 for water channel 35, cooling water channel 35 Road reinforcing rib 36, the two sides of water channel reinforcing rib 36 are connect with inboard wall of cylinder block 33 and water channel outer wall 34 respectively.The upper end of crankcase 1 is set There is the water channel 72 cooperated with piston cylinder 4, water channel 72 is located at the lower section of cooling water channel 35 and communicates with cooling water channel 35, in piston cylinder 4 outer walls are around the structural shape of setting cooling water channel 35, and cooling water flows in cooling water channel 35 forms a cooling jacket, benefit Cylinder body can be fully cooled with water cooling heat exchange efficiency height, cooling rapid advantage, water channel reinforcing rib 36 increases inboard wall of cylinder block 33 and water channel outer wall 34 bonding strength, after so that cylinder body 2 is able to bear biggish vibration still can work normally, extend cylinder The service life of body 2 and the working strength for enhancing cylinder body 2.

Water channel reinforcing rib 36 includes the first water channel reinforcing rib 64 and the second water channel reinforcing rib 65, the first water channel reinforcing rib 64 Upper end is flushed with the upper end of the upper end of inboard wall of cylinder block 33 and water channel outer wall 34, and the upper end of the second water channel reinforcing rib 65 is lower than the The upper end of one water channel reinforcing rib 64 is equipped with top horizontal runner between the upper end of water channel outer wall 34 and the upper end of inboard wall of cylinder block 33 37, top horizontal runner 37 is located at the top of the second water channel reinforcing rib 65.First water channel reinforcing rib 64 and the second water channel reinforcing rib 65 difference in height forms top horizontal runner 37, and cooling water is adjusted in top horizontal runner 37 by the first water channel reinforcing rib 64 Cooling water is saved in the flow velocity of top horizontal runner 37, extends the time of contact of cooling water and inboard wall of cylinder block 33, improves cooling water heat The efficiency of exchange.

The lower end of water channel reinforcing rib 36 flushes, and the lower end of water channel reinforcing rib 36 is higher than the upper end of water channel outer wall 34 Portion, is equipped with bottom level runner 38 between the lower end of water channel outer wall 34 and the lower end of inboard wall of cylinder block 33, bottom level runner 38 is set In the lower section of water channel reinforcing rib 36, the first water channel reinforcing rib 64 is laid in 4 outside of piston cylinder, and the second water channel reinforcing rib 65 is located at Between first water channel reinforcing rib 64.Cooling chamber is formed between each water channel reinforcing rib 36, cooling water passes through after the entrance of water inlet 31 Bottom level runner 38 flows in each cooling chamber, and bottom level runner 38 plays the role of evenly dispersed cooling water, cold But 4 periphery of water piston cylinder forms cooling jacket, so that cooling water is carried out whole cooling to piston cylinder 4, enhances the effect of heat dissipation, Piston cylinder 4 includes big piston cylinder and small piston cylinder, the structure setting adaptation of the big piston cylinder of water channel reinforcing rib 36 and small piston cylinder Water channel reinforcing rib 36 improves the utilization rate of cooling water.

When work, cooling water is after water inlet 31 enters cooling water channel 35, the first bottom level around water channel outer wall 34 Piston cylinder flows to big piston cylinder to runner 38 from childhood, and after bottom level runner 38 is full of cooling water, cooling water is along multiple cooling chambers Inner wall synchronizes uniform rising, is carrying out heat exchange in cooling water uphill process between the outer wall of piston cylinder 4, is taking away compression rapidly The heat that process generates, makes piston cylinder 4, piston, piston ring operating temperature remain at lower range, 4 temperature of piston cylinder Reduction can make the delivery temperature of compressed air also lower, and the rate of wear of piston ring accordingly can also decline to a great extent, and play extension The effect in piston ring service life.

Embodiment 2

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, on the basis of embodiment 1, water channel outer wall It is connected between 34 and outer wall of cylinder block 32 by reinforcing rib 39, reinforcing rib 39, water channel outer wall 34, outer wall of cylinder block 32 surround to form sound insulation Chamber 40, sound insulation chamber 40 is interior to be equipped with the fixed frame 41 connecting with cylinder body 2, and the lower end of fixed frame 41 and the lower end of sound insulation chamber 40 are neat Flat, the upper end of fixed frame 41 is located in sound insulation chamber 40, and fixed frame 41 includes cylindrical body 42 and connect with 42 periphery of cylindrical body Dowel 43, cylindrical body 42 are connect by dowel 43 with cylinder body 2, and the middle part of cylindrical body 42 offers installation through-hole 44.Cold But the periphery setting sound insulation chamber 40 of water channel 35, is made an uproar piston and inlet and outlet valve what the course of work generated using sound insulation chamber 40 Sound carries out effective isolation and abatement, significantly reduces the work noise of complete machine, by fixed frame 41 enhance outer wall of cylinder block 32 with The bonding strength of water channel outer wall 34, fixed frame 41 by 43 stroke of hollow cylindrical body 42 and dowel, reduce noise transmission and The carrier of Vibration propagation, to enhance the stability of cylinder body 2 at work.

Embodiment 3

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, on the basis of embodiment 2, crankcase 1 Upper end is equipped with the bar shaped air inlet 23 being arranged from front to back, is equipped with the air inlet connecting connecting with crankcase 1 above bar shaped air inlet 23 First 24,1 upper end two sides of crankcase are equipped with two inlet channels 25 disposed in parallel, and inlet channel 25 is laterally arranged from left to right, The left part of inlet channel 25 is communicated with bar shaped air inlet 23, and the right side of crankcase 1 is equipped with the air filter component connecting with crankcase 1 26, air filter component 26 includes air filter shell 27 and the air filtering core 28 for being located at 27 inner cavity of air filter shell, the upper end of air filter shell 27 Two sides are equipped with the air filter air inlet 29 communicated with 25 right end of inlet channel, the inner cavity phase of air filter air inlet 29 and air filter shell 27 It is logical, it is equipped with air filter gas outlet 30 in the middle part of air filtering core 28, is communicated inside air filter gas outlet 30 and crankcase 1.External primary air filter Air inlet gas after primary filter is sucked through inlet suction port 24, via 1 top two sides inlet channel 25 of crankcase enter in empty Filter component 26 carries out last essence filtering, and the air after refined filtration enters crankcase 1, it is ensured that air inlet is clean, while to air filter component 26 Interior moving component and bearing effectively cool down, and 26 capacity of air filter component is big, and filtering accuracy is high, as third level filter device Dust and particle in air inlet can be more effectively filtered out, avoids entering because of the impurity in air inlet in cabinet to moving component and bearing It causes to wear, can effectively extend machine life, crankcase uses two parallel inlet channels 25, effectively reduces air inlet and make an uproar Sound, while also facilitating and crankcase 1 is cooled down by air inlet.

The low-pressure piston 45 moved up and down in piston cylinder 4 is equipped in piston cylinder 4, the top of low-pressure piston 45 offers logical Stomata 46, the top of venthole 46 are equipped with the air-intake valve plate 47 being covered on venthole 46, and the top of air-intake valve plate 47 is equipped with pressure The tightly compression elastic slice 48 on air-intake valve plate 47 compresses elastic slice 48 and connects by the way that the top of dogbolt and low-pressure piston 45 is fixed It connects.Air-intake valve plate 47 is equipped with the air inlet elastic slice of covering venthole 46, and gas is living by low pressure after 26 refined filtration of air filter component The air inlet elastic slice that plug 45 opens on air-intake valve plate 47 enters in the low-pressure cylinder of piston cylinder 4, on the access that entire air inlet flows through, The air inlet gas of sucking carries out one by one effectively cooling to the moving component and bearing flowed through, and compression elastic slice 48 is " ten " font, Guarantee the elasticity of 47 upper air elastic slice of air-intake valve plate, the air-intake valve plate on low-pressure piston 45 while compressing air-intake valve plate 47 47 are fixed using anti-corrosion dogbolt and locking washer combination fixed form, multiple-protection, it is ensured that fastening bolt will not Loosened because of the high speed reciprocating motion of piston or vibration, completely eliminate because air-intake valve plate 47 fall off cause clamping stagnation or hit cylinder etc. therefore Hinder the possibility occurred.

Be equipped with valve plate 49 between cylinder cap 14 and cylinder body 2, valve plate 49 by connection be bolted to cylinder cap 14 and cylinder body 2 it Between, connection bolt-through is connect in cylinder cap 14 and valve plate 49 and with cylinder body 2, and valve plate 49 is equipped with low pressure valve plate 50 and high pressure valve plate 51, low pressure valve plate 50 and high pressure valve plate 51 cooperate the top for being located at piston cylinder 4, set on low pressure valve plate 50 and arrange there are four rectangular The low pressure exhaust hole 52 of column, high pressure valve plate 51 are equipped with high pressure gas hole 53, and the upper surface of low pressure valve plate 50 is equipped with and low pressure The low pressure exhaust valve block 54 that valve plate 50 is fixedly connected, low pressure exhaust valve block 54 are covered on 52 top of low pressure exhaust hole, high pressure valve plate 51 upper surface is equipped with the high pressure gas valve block 55 being fixedly connected with high pressure valve plate 51, and high pressure gas valve block 55 is covered on high pressure Above gas vent 53, the first high pressure admission chamber 56 and the first high pressure admission being from top to bottom recessed are additionally provided on high pressure valve plate 51 The high pressure air intake hole 57 of 56 bottom of chamber, high pressure air intake hole 57 and the first high pressure admission chamber 56 are each provided at the right side in high pressure gas hole 53 Side, the lower end surface of high pressure valve plate 51 are equipped with the high pressure admission valve block 66 being fixedly connected with high pressure valve plate 51, high pressure admission valve block 66 are covered on the lower section of high pressure air intake hole 57.Low pressure exhaust valve block 54, high pressure gas valve block 55, high pressure admission valve block 66 pass through Rivet is fixed on valve plate 49, and fixed form mechanism is simple, it is solid and reliable, prevent from loosening, installation space it is smaller, be easier to realize Automatic press mounting；Air of the low-pressure piston 45 in piston cylinder 4 in upward 4 mesolow piston cylinder of motion compresses piston cylinder, low pressure pressure Contracting air reaches the low pressure exhaust valve block 54 pushed open on low pressure valve plate 50 after pressure at expulsion and enters low pressure heat exchanger 5 via cylinder cap 14 It is cooled down, opens high pressure admission valve block downwards via the first high pressure admission chamber 56 by cylinder cap 14 after low pressure compressed gas is cooling 66 enter the high-pressure piston cylinder in piston cylinder 4, and what the upward motion compresses in high-pressure piston cylinder of high pressure piston 73 sucked comes from low After the compressed air to pressure at expulsion of cylinder pressure, after high pressure piston 73 moves to top dead centre, gas in the jar is compressed into high pressure compressed Air enters the cooling of high pressure heat exchanger 10 to push high pressure gas valve block 55 open, then by cylinder cap 14, and this technology structure is simple, required Installation space it is smaller, compression efficiency is higher.

Cylinder cap 14 is equipped with the low pressure exhaust chamber 58, high pressure gas chamber 59, the second high pressure admission chamber 60 of indent from the bottom to top, Low pressure exhaust chamber 58 is located at the top of low pressure exhaust valve block 54, and high pressure gas chamber 59 is located at the top of high pressure gas valve block 55, the Two high pressure admission chambers 60 are located at the top of the first high pressure admission chamber 56 and communicate with the first high pressure admission chamber 56, the front end of cylinder cap 14 Equipped with the low pressure exhaust channel 61 communicated with low pressure exhaust chamber 58, the upper end on 5 right side of low pressure exhaust channel 61 and low pressure heat exchanger It is connected by low pressure (LP) cylinder exhaust pipe 68, the right end of cylinder cap 14 is equipped with the high pressure admission channel communicated with the second high pressure admission chamber 60 67, high pressure admission channel 67 is connect with the lower end on 5 right side of low pressure heat exchanger by high pressure cylinder air inlet pipe 69, and the rear end of cylinder cap 14 is set There is the high pressure gas channel 62 communicated with high pressure gas chamber 59, the upper end on 10 right side of high pressure gas channel 62 and high pressure heat exchanger is logical The connection of high pressure cylinder exhaust pipe 70 is crossed, the lower end on 10 right side of high pressure heat exchanger is equipped with exhaust outlet 63.Low-pressure compressed air reaches exhaust Low pressure exhaust valve block 54 on low pressure valve plate 50 is pushed after pressure open successively via low pressure exhaust chamber 58, low pressure exhaust channel 61, low Cylinder pressure exhaust pipe 68 is cooled down into low pressure heat exchanger 5, successively passes through high pressure cylinder air inlet pipe after low pressure compressed gas is cooling 69, high pressure admission channel 67, the second high pressure admission chamber 60, the first high pressure admission chamber 56 open downwards the entrance of high pressure admission valve block 66 High-pressure piston cylinder in piston cylinder 4, after high pressure piston 73 moves to top dead centre, gas in the jar is compressed into high pressure air To push high pressure gas valve block 55 open, then successively enter by high pressure gas chamber 59, high pressure gas channel 62, high pressure cylinder exhaust pipe 70 High pressure heat exchanger 10 is cooling, and compressed air after cooling is discharged through exhaust outlet 63, after being transported to the cryogenic high pressure state of appropriateness Use air pipe and element in end.First water inlet pipe 7 is connect with the lower end of 5 right side of low pressure heat exchanger, and the first water outlet 8 is located at low The upper end of 5 left side of heat exchanger is pressed, the second water inlet pipe 11 is connect with the lower end of 10 right side of high pressure heat exchanger, the second water outlet 12 Be located at the upper end of 10 left side of high pressure heat exchanger, low pressure heat exchanger 5 and high pressure heat exchanger 10 using position from low to high, from low temperature Flow direction to high temperature is designed, and increases heat exchange area to greatest extent, and low pressure heat exchanger 5 and high pressure heat exchanger 10 are equal For shell-and-tube cooler, the shell-tube type structure as formed using thin shell type body structure and multiple rows of elbow pipe welding, shell cabinet Coolant liquid is inside persistently injected, is passed through high-temperature gas in bend pipe, a kind of cooling of coolant liquid is transferred heat to by bend pipe tube wall Device.

This technology complete machine uses water cooling and the air-cooled double acting type of cooling, is fully cooled, and effect is more preferable, and operating temperature is low, It is stable and reliable for performance, it can continuously run for a long time, longer life expectancy；Cylinder body 2 uses Multi-Layer and Multi-Cavity structure, in conjunction with Water Cavity of Cylinder Head structure It is combined into noise elimination chamber together, the noise that air valve compression process generates is effectively isolated and is cut down, it is mute to reach low noise Effect.

Embodiment 4

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, on the basis of embodiment 3, including crankshaft Main body 74, crankshaft main body 74 include crankshaft disk 75 and the axle journal 76 connecting with crankshaft disk 75, and axle journal 76 includes and low-pressure piston 45 The low pressure axle journal 77 of connection and the high pressure axle journal 78 connecting with high pressure piston 73, low pressure axle journal 77 and high pressure axle journal 78 are respectively provided at The two sides of crankshaft disk 75, low pressure axle journal 77 and high pressure axle journal 78 are eccentrically set on the two sides of crankshaft disk 75, low pressure axle journal 77 respectively It is arranged in parallel with high pressure axle journal 78.Low pressure axle journal 77 and high pressure axle journal 78 are symmetrically arranged at the both ends of the same diameter of reel 80, low pressure The end of axle journal 77 is connect with reel 80, and the end of high pressure axle journal 78 is equipped with balance weight 92, after the assembly is completed, passes through reel 80 It is combined duplicate removal with crankshaft disk 75, the center of gravity of this technology is located on the central axis of crankshaft disk 75, and assembly may be implemented and complete The accurate dynamic balancing matching of this technology afterwards, in crankshaft 74 high-speed rotation of main body, rotatory inertia torque levels off to zero, and has There is certain rotary inertia, can make air compressor machine that there is good accelerating ability in the case where air compressor machine can not configure flywheel.

The right side of crankshaft disk 75 is equipped with the first roller bearing seat 79 being arranged concentrically with crankshaft disk 75, the circle of crankshaft disk 75 Column diameter is greater than the body diameter of the first roller bearing seat 79, and low pressure axle journal 77 is connect with the first roller bearing seat 79 and bias is set It sets on the first roller bearing seat 79.It is convenient that right roller bearing 123 is installed on the first roller bearing seat 79, keep crankshaft disk 75 logical It crosses right roller bearing 123 to be mounted in crankcase 1, keeps internal structure more compact, save installation space.

The end of low pressure axle journal 77 is equipped with the reel 80 connecting with low pressure axle journal 77, and reel 80 is set in low pressure axle journal 77 On, the first threaded hole 81 is equipped in low pressure axle journal 77, reel 80 is spun in the first threaded hole 81 by the first bolt 82 and low pressure Axle journal 77 connects, and the bolt hole 84 being adapted to the first bolt head 83 of the first bolt 82 is equipped in reel 80, is set in bolt hole 84 There is the lock washer 85 for preventing the first bolt 82 from loosening, lock washer 85 is set on the first bolt 82, lock washer 85 It is pressed in bolt hole 84 by the first bolt head 83.Reel 80 is connect by the first bolt 82 with low pressure axle journal 77, by anti- Loose washer 85 prevents reel 80 in rotation, and reel 80 and low pressure axle journal 77 loosen, and improves reel 80 and crankshaft main body 74 is pacified The stability of dress.Reel 80 is with shaft coupling from the disc parts of pawl, which also acts the function of flywheel simultaneously Can, inertia potential energy is stored, so that air compressor machine is more steady when operating, reel 80, which is equipped with, matches repeated hole 103 for counterweight, passes through Built-up crankshaft is adjusted with increase and decrease material in repeated hole 103 until its optimum balance state in different location.

The end of high pressure axle journal 78 is equipped with the balance weight 92 being set on high pressure axle journal 78, and the inside of high pressure axle journal 78 is equipped with Second threaded hole 93, balance weight 92 are spun in the second threaded hole 93 by the second bolt 94 and are connect with high pressure axle journal 78, high-pressure shaft The end of neck 78 is equipped with the circular mounting seat 95 being adapted to balance weight 92, and the body diameter of circular mounting seat 95 is less than high pressure axle journal 78 body diameter is arranged with plain washer 96 on the second bolt 94, and plain washer 96 is located at the second bolt head 99 of the second bolt 94 Between circular mounting seat 95, balance weight 92 is fixed between the end of high pressure axle journal 78 and plain washer 96.High pressure axle journal 78 Balance weight 92 is arranged in end, balances the center of gravity of this technology, and balance weight 92 is mounted on high pressure axle journal 78 by circular mounting seat 95 End, simplify the structure of connection, and ensure that the stability of connection.

Embodiment 5

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, on the basis of embodiment 4, in embodiment On the basis of 1, the outer wall of low pressure axle journal 77 is equipped with reel mounting base 86 and the first deep groove ball bearing seat 87, reel mounting base 86 It is located at the left side of the first deep groove ball bearing seat 87, first step is equipped between reel mounting base 86 and the first deep groove ball bearing seat 87 Face 88, the right end of reel 80 are equipped with mounting hole 89, and reel mounting base 86 is located in mounting hole 89 and offsets with reel 80, reel 80 Right end offset with First terrace 88；High pressure axle journal 78 is equipped with the second deep groove ball bearing seat 90, the second deep groove ball bearing seat 90 left side is equipped with second step face 91.The reel mounting base 86 of low pressure axle journal 77 is located at mounting hole 89 and reel 80, and first is deep Ditch ball bearing housing 87 is for installing the first deep groove ball bearing 114, and the first deep groove ball bearing 114 is by First terrace 88 low Position is fixed on last item neck 77, second step face 91 is used to fix the position of the second deep groove ball bearing 119, improves components Stability, and keep internal structure more compact, reduce the space of installation.

Embodiment 6

The oil-free piston type air compressor of used in new energy vehicles, as shown in Fig. 1 to Figure 23, on the basis of embodiment 5, in embodiment On the basis of 2, balance weight 92 includes interconnecting piece 97 and fan-shaped balance portion 98, under the upper end of interconnecting piece 97 and fan-shaped balance portion 98 The middle part at end connects and is an integral structure with interconnecting piece 97, and leading to of be adapted to circular mounting seat 95 is offered on interconnecting piece 97 Hole 100, the upper end of through-hole 100 offer the upper groove 101 being recessed upwards, and the upper end of circular mounting seat 95 is offered to lower recess Lower groove 102, upper groove 101 and lower groove 102 cooperatively form dowel hole.Fan-shaped balance portion 98 passes through interconnecting piece 97 and height Last item neck 78 connects, and balances the center of gravity of this technology in the running by fan-shaped balance portion 98, it is solid that positioning key is arranged in keyway 29 The position for determining balance weight 92 Yu high pressure axle journal 78 prevents balance weight 92 and high pressure axle journal 78 from relatively rotating, improves balance weight 92 Stability when work together constitutes an energy after 92 3 reel 80, crankshaft main body 74, balance weight optimized designs of component Rotatory inertia torque is effectively eliminated, the built-up crankshaft of optimum balance effect is reached.

The right side of reel 80 is equipped with the second roller bearing seat 104, and the body diameter of the second roller bearing seat 104 is less than reel 80 body diameter is arranged with left roller bearing 105 on the second roller bearing seat 104, is equipped in crankcase 1 and left roller bearing The mounting grooves 106 of 105 adaptations, the right side of left roller bearing 105 are equipped with and the first support sleeve for offseting on the right side of left roller bearing 105 107, the right side of the first support sleeve 107 and left roller bearing 105 offsets, and is arranged on reel 80 and left 105 left side of roller bearing The first gland 108 to offset.Left roller bearing 105 is fixed by the first support sleeve 107 and the first gland 108, prevents a left side Roller bearing 105 moves axially, while preventing the loss of bearing grease.

Offered on the inner wall of first gland 108 with the first seal groove 109, be equipped in the first seal groove 109 with it is first close The first sealing ring 110 that sealing groove 109 is adapted to, the first sealing ring 110 are set on reel 80；On the outer wall of first support sleeve 107 The second seal groove 111 is offered, the second sealing ring 112 being adapted to the second seal groove 111 is equipped in the second seal groove 111, the Two sealing rings 112 are located between the first support sleeve 107 and crankcase 1.It is right by the first sealing ring 110 and the second sealing ring 112 The two sides of left roller bearing 105 are sealed, and are prevented pollutant from entering in left roller bearing 105, are polluted to lubricating grease, together When further prevent the lubricating grease in left roller bearing 105 to be lost.

It is equipped with low-pressure piston 45 and high pressure piston 73 in cylinder body 2, is arranged on low pressure axle journal 77 and is connect with low-pressure piston 45 Low pressure connecting rod 113, the first deep groove ball bearing 114 being set on low pressure axle journal 77, the first zanjon are equipped in low pressure connecting rod 113 Ball bearing 114 is located on the first deep groove ball bearing seat 87, and the left side of low pressure axle journal 77 is equipped with the be set on low pressure axle journal 77 One cover board 115, right side and the low pressure connecting rod 113 of the first cover board 115 offset, the left side of the first cover board 115 and the right end of reel 80 Portion offsets, and the first cover board 115 is fixedly connected by the first screw 116 with low pressure connecting rod 113, and the two of the first deep groove ball bearing 114 Side is equipped with the first adjustment snare 117 being set on low pressure axle journal 77；It is arranged on high pressure axle journal 78 and is connect with high pressure piston 73 High-pressure connecting rod 118, the second deep groove ball bearing 119 being set on high-pressure connecting rod 118 is equipped in high-pressure connecting rod 118, second is deep Ditch ball bearing 119 is located on the second deep groove ball bearing seat 90, left side and 91 phase of second step face of the second deep groove ball bearing 119 It supports, the right side of high-pressure connecting rod 118 is equipped with the second cover board 120 being set on high pressure axle journal 78, the second cover board 120 and high-pressure connecting rod 118 right side offsets, and the second cover board 120 is fixedly connected by the second screw 121 with high-pressure connecting rod 118, the second deep groove ball bearing 119 two sides are equipped with the second adjustment snare 122 being set on high pressure axle journal 78.First deep groove ball bearing 114 passes through the first lid Plate 115 is pressed in low pressure connecting rod 113, and the second deep groove ball bearing 119 is pressed on high-pressure connecting rod 118 by the second cover board 120 Interior, low pressure connecting rod 113 and high-pressure connecting rod 118 are monolithic construction, and the bearing hole of low pressure connecting rod 113 and high-pressure connecting rod 118 is equal For staged, the first deep groove ball bearing 114 and the second deep groove ball bearing 119 can be effectively prevent to loosen, and guaranteed to greatest extent The circularity of first deep groove ball bearing 114 and the second deep groove ball bearing 119 prevents its radial deformation, 117 He of the first adjustment snare Second adjustment snare 122 is respectively used to the axial position of adjustment the first deep groove ball bearing 114 and the second deep groove ball bearing 119, makes Low pressure connecting rod 113 and high-pressure connecting rod 118 move up and down on the central axis of the piston hole of cylinder body always, the first cover board 115, Two cover boards 120, the first adjustment snare 117, second adjustment snare 122 are respectively to the first deep groove ball bearing 114 and the second deep-groove ball Bearing 119 realizes sealing, prevents bearing grease leakage and external dust from entering, and low pressure connecting rod 113 and high-pressure connecting rod 118 are equal For monolithic construction, to avoid traditional cutting formula connecting rod from haveing the defects that uneven power causes bearing deformation when clamping.

It is arranged with right roller bearing 123 on first roller bearing seat 79, is equipped on the left of right roller bearing 123 and is set in first The second support sleeve 124 on roller bearing seat 79 offers third seal groove 125 on the outer wall of second support sleeve 124, and third is close The third sealing ring 126 being adapted to third seal groove 125 is equipped in sealing groove 125, third sealing ring 126 is located at the second support sleeve Between 124 and crankcase 1, the right side of right roller bearing 123 is equipped with the second gland 127, offers on the inner wall of the second gland 127 4th seal groove 128, the 4th seal groove 128 are interior equipped with the 4th sealing ring 129 being adapted to the 4th seal groove 128, the 4th sealing Circle 129 is located between the second gland 127 and crankshaft disk 75.Right roller bearing 123 passes through the second support sleeve 124 and the second gland 127 pairs of right roller bearings 123 carry out axial restraint, prevent right roller bearing 123 from moving axially, third sealing ring 126 and the 4th The two sides of 129 pairs of sealing ring right roller bearings 123 are sealed, and prevent pollutant from entering in right roller bearing 123, while into one Step prevents the lubricating grease in right roller bearing 123 to be lost.

In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent Variation and modification, shall all be covered by the patent of the invention.

Claims

1. the oil-free piston type air compressor of used in new energy vehicles, including crankcase (1), cylinder body (2), cylinder head component (3), cylinder body (2) is interior Equipped with piston cylinder (4), cylinder body (2) is located at the top of crankcase (1) and connect with crankcase (1), and cylinder head component (3) is located at cylinder body (2) it top and is connect with cylinder body (2), it is characterised in that: the front side of cylinder body (2) is equipped with the low pressure connecting with crankcase (1) and changes Hot device (5), the right end of cylinder body (2) are equipped with the manifold blocks (6) connecting with cylinder body (2), and manifold blocks (6) and low pressure heat exchanger (5) are logical The first water inlet pipe (7) connection is crossed, the left end of low pressure heat exchanger (5) is equipped with the first water outlet (8), and the first water outlet (8) passes through the One drainpipe (9) is connect with cylinder head component (3)；The rear side of cylinder body (2) is equipped with the high pressure heat exchanger connecting with crankcase (1) (10), manifold blocks (6) and high pressure heat exchanger (10) are connected by the second water inlet pipe (11), and the left end of high pressure heat exchanger (10) is equipped with Second water outlet (12), the second water outlet (12) are connect by the second drainpipe (13) with cylinder head component (3), in piston cylinder (4) Equipped with the low-pressure piston (45) moved up and down in piston cylinder (4), venthole (46) are offered at the top of low-pressure piston (45), are led to The top of stomata (46) is equipped with the air-intake valve plate (47) being covered on venthole (46), is equipped with and crankcase (1) in crankcase (1) The crankshaft main body (74) of connection, crankshaft main body (74) include crankshaft disk (75) and the axle journal (76) connecting with crankshaft disk (75), axis Neck (76) includes the low pressure axle journal (77) connecting with low-pressure piston (45) and the high pressure axle journal (78) connecting with high pressure piston (73), Low pressure axle journal (77) and high pressure axle journal (78) are respectively provided at the two sides of crankshaft disk (75), low pressure axle journal (77) and high pressure axle journal (78) It is eccentrically set on the two sides of crankshaft disk (75) respectively, low pressure axle journal (77) and high pressure axle journal (78) are arranged in parallel, low pressure axle journal (77) end is equipped with the reel (80) connecting with low pressure axle journal (77), and the end of high pressure axle journal (78), which is equipped with, is set in high-pressure shaft Balance weight (92) on neck (78).

2. the oil-free piston type air compressor of used in new energy vehicles according to claim 1, it is characterised in that: cylinder head component (3) packet The cylinder cap plate (15) for including the cylinder cap (14) connecting with cylinder body (2) and being located above cylinder cap (14), cylinder cap plate (15) and cylinder cap (14) It is connected by screw (16), cylinder cap (14) is equipped with the first water inlet (17) connecting with the first drainpipe (9) and drains with second The second water inlet (18) of (13) connection is managed, is equipped in cylinder cap (14) from top to bottom to the inner cavity of lower recess (19), inner cavity (19) Form cooling water cavity (20) with cylinder cap plate (15), the first water inlet (17) and the second water inlet (18) respectively with cooling water cavity (20) It communicates, the front side of cylinder cap (14) is equipped with the first discharge outlet (21) communicated with the first water inlet (17), and cylinder cap is set on rear side of (14) There is the second discharge outlet (22) communicated with the second water inlet (18).

3. the oil-free piston type air compressor of used in new energy vehicles according to claim 1, it is characterised in that: the right end of cylinder body (2) Equipped with the cylinder body water inlet (31) communicated with manifold blocks (6), cylinder body (2) includes the outer wall of cylinder block (32) set gradually from outside to inside With inboard wall of cylinder block (33), cylinder body (2) is surrounded by outer wall of cylinder block (32) to be formed, and piston cylinder (4) is surrounded by inboard wall of cylinder block (33) to be formed, Water channel outer wall (34) are equipped between outer wall of cylinder block (32) and inboard wall of cylinder block (33), between inboard wall of cylinder block (33) and water channel outer wall (34) It is formed cooling water channel (35), cooling water channel (35) is arranged along inboard wall of cylinder block (33) annular in the outside of piston cylinder (4), cooling water Water channel reinforcing rib (36) are equipped in road (35), the two sides of water channel reinforcing rib (36) respectively with inboard wall of cylinder block (33) and water channel outer wall (34) it connects.

4. the oil-free piston type air compressor of used in new energy vehicles according to claim 3, it is characterised in that: water channel reinforcing rib (36) Including the first water channel reinforcing rib (64) and the second water channel reinforcing rib (65), in the upper end and cylinder body of the first water channel reinforcing rib (64) The upper end of wall (33) and the upper end of water channel outer wall (34) flush, and the upper end of the second water channel reinforcing rib (65) adds lower than the first water channel The upper end of strengthening tendons (64) is equipped with top horizontal runner between the upper end of water channel outer wall (34) and the upper end of inboard wall of cylinder block (33) (37), top horizontal runner (37) is located at the top of the second water channel reinforcing rib (65).

5. the oil-free piston type air compressor of used in new energy vehicles according to claim 3, it is characterised in that: water channel reinforcing rib (36) Lower end flush, the lower end of water channel reinforcing rib (36) is higher than the upper end of water channel outer wall (34), water channel outer wall (34) Bottom level runner (38) are equipped between lower end and the lower end of inboard wall of cylinder block (33), bottom level runner (38) is located at water channel reinforcement The lower section of muscle (36), the first water channel reinforcing rib (64) are laid on the outside of piston cylinder (4), and the second water channel reinforcing rib (65) is located at the Between one water channel reinforcing rib (64).

6. the oil-free piston type air compressor of used in new energy vehicles according to claim 3, it is characterised in that: water channel outer wall (34) with It is connected between outer wall of cylinder block (32) by reinforcing rib (39), reinforcing rib (39), water channel outer wall (34), outer wall of cylinder block (32) surround shape At sound insulation chamber (40), be equipped with the fixed frame (41) connect with cylinder body (2) in sound insulation chamber (40), the lower end of fixed frame (41) and every The lower end of sound chamber (40) flushes, and the upper end of fixed frame (41) is located in sound insulation chamber (40), and fixed frame (41) includes cylindrical body (42) and with cylindrical body (42) periphery the dowel (43) connecting, cylindrical body (42) are connect by dowel (43) with cylinder body (2), Installation through-hole (44) are offered in the middle part of cylindrical body (42).

7. the oil-free piston type air compressor of used in new energy vehicles according to claim 1, it is characterised in that: crankcase (1) upper end Equipped with the bar shaped air inlet (23) being arranged from front to back, the air inlet connecting with crankcase (1) is equipped with above bar shaped air inlet (23) Connector (24), crankcase (1) upper end two sides are equipped with two inlet channels (25) disposed in parallel, and inlet channel (25) is from left to right Laterally setting, the left part of inlet channel (25) are communicated with bar shaped air inlet (23), and the right side of crankcase (1) is equipped with and crankcase (1) the air filter component (26) connected, air filter component (26) includes air filter shell (27) and the sky for being located at air filter shell (27) inner cavity Filter element (28), the upper end two sides of air filter shell (27) are equipped with the air filter air inlet (29) communicated with inlet channel (25) right end, Air filter air inlet (29) is communicated with the inner cavity of air filter shell (27), is equipped with air filter gas outlet (30) in the middle part of air filtering core (28), empty It filters out and is communicated inside port (30) and crankcase (1).

8. the oil-free piston type air compressor of used in new energy vehicles according to claim 1, it is characterised in that: venthole (46) it is upper Side is equipped with the air-intake valve plate (47) being covered on venthole (46), and the top of air-intake valve plate (47), which is equipped with, is pressed on air-intake valve plate (47) the compression elastic slice (48) on compresses elastic slice (48) by being fixedly connected at the top of dogbolt and low-pressure piston (45).

9. the oil-free piston type air compressor of used in new energy vehicles according to claim 2, it is characterised in that: cylinder cap (14) and cylinder body (2) valve plate (49) are equipped between, valve plate (49) is equipped with low pressure valve plate (50) and high pressure valve plate (51), low pressure valve plate (50) and height Pressure valve plate (51), which cooperates, is located at the tops of piston cylinder (4), sets that there are four the rectangular low pressure rows uniformly arranged on low pressure valve plate (50) Stomata (52), high pressure valve plate (51) are equipped with high pressure gas hole (53), and the upper surface of low pressure valve plate (50) is equipped with and low pressure valve The low pressure exhaust valve block (54) that plate (50) is fixedly connected, low pressure exhaust valve block (54) are covered on above low pressure exhaust hole (52), high The upper surface of pressure valve plate (51) is equipped with the high pressure gas valve block (55) being fixedly connected with high pressure valve plate (51), high pressure gas valve block (55) it is covered on above high pressure gas hole (53), is additionally provided with the first high pressure admission chamber being from top to bottom recessed on high pressure valve plate (51) (56) and the high pressure air intake hole (57) of first high pressure admission chamber (56) bottom, high pressure air intake hole (57) and the first high pressure admission chamber (56) it is each provided at the right side of high pressure gas hole (53), the lower end surface of high pressure valve plate (51) is equipped with and high pressure valve plate (51) fixed company The high pressure admission valve block (66) connect, high pressure admission valve block (66) are covered on the lower section of high pressure air intake hole (57).

10. the oil-free piston type air compressor of used in new energy vehicles according to claim 9, it is characterised in that: cylinder cap is set on (14) There are the low pressure exhaust chamber (58), high pressure gas chamber (59), the second high pressure admission chamber (60) of indent from the bottom to top, low pressure exhaust chamber (58) it is located at the top of low pressure exhaust valve block (54), high pressure gas chamber (59) is located at the top of high pressure gas valve block (55), and second High pressure admission chamber (60) is located at the top of the first high pressure admission chamber (56) and communicates with the first high pressure admission chamber (56), cylinder cap (14) Front end be equipped with the low pressure exhaust channel (61) that communicates with low pressure exhaust chamber (58), low pressure exhaust channel (61) and low pressure heat exchanger (5) upper end on the right side of is connected by low pressure (LP) cylinder exhaust pipe (68), and the right end of cylinder cap (14) is equipped with and the second high pressure admission chamber (60) The high pressure admission channel (67) communicated, lower end on the right side of high pressure admission channel (67) and low pressure heat exchanger (5) by high pressure cylinder into Tracheae (69) connection, the rear end of cylinder cap (14) are equipped with the high pressure gas channel (62) communicated with high pressure gas chamber (59), high pressure Gas channel (62) is connect with the upper end on the right side of high pressure heat exchanger (10) by high pressure cylinder exhaust pipe (70), and high pressure heat exchanger (10) is right The lower end of side is equipped with exhaust outlet (63).