CN107917059A - A kind of automobile-used electric drive oil-free piston type air compressor - Google Patents
A kind of automobile-used electric drive oil-free piston type air compressor Download PDFInfo
- Publication number
- CN107917059A CN107917059A CN201711298143.5A CN201711298143A CN107917059A CN 107917059 A CN107917059 A CN 107917059A CN 201711298143 A CN201711298143 A CN 201711298143A CN 107917059 A CN107917059 A CN 107917059A
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- automobile
- air compressor
- electric drive
- crankcase
- type air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
Abstract
The present invention relates to a kind of automobile-used electric drive oil-free piston type air compressor, including motor（1）, electric machine main shaft（3）, crankcase（4）, flywheel shaft（5）And connecting rod（6）, crankcase and piston cylinder（9）, crankcase（4）Both sides horizontally-opposed have two piston cylinders（9）, two-piston cylinder（9）Outside be respectively arranged with exhaust valve plate（7）, the motor（1）Pass through bolt（2）It is fixed on crankcase（4）Afterbody, its electric machine main shaft（3）Direct connection drives flywheel shaft（5）Rotation, flywheel shaft（5）Pass through a carrying bearing support（15）It is placed in crankcase（4）Interior, small so as to fulfill motor front end bearing load, motor service life extends, and has the advantages that noise is small, reliability is high.
Description
Technical field
It is empty in particular to a kind of automobile-used electric drive oil-free piston type the present invention relates to air compressor technical field
Air compressor.
Background technology
Predominantly there is oily air compressor machine currently used for Vehicular electric air compressor machine, and part oil-free electric drive air compressor machine is mainly
Vortex air compressor machine.In addition in the market also has the piston type oil-free pneumatics that part is originally used for dentistry, electronics, chemical industry etc.
Machine, these types are also only for clean environment originally, and pressure at expulsion is relatively low, are all indoor and spacious plus use environment
Place, its appearance and size and weight are also bigger than normal, are commonly single handle structure, and eccentric shaft uses direct-connected driving with electric machine main shaft, this
The direct-connected mode structure of kind greatly, causes motor front end bearing load excessive, and be limited to motor assembler there are the long vibrations of cantilever
Skill, end bearing and bearing chamber are mostly clearance fit before motor, aggravate raceway abrasion after long-time use under this operating mode, draw
Play bearing play oil leak stuck, the burn-down of electrical machinery failure that ultimately results in bearing.It is different using the new energy car of the type air compressor machine
The problems such as poor reliability big there are noise of degree.
Such as the Chinese invention patent of Publication No. CN101614200A, it discloses a kind of oil-free compressor used in locomotive,
Including components such as motor, cylinder, piston rod part, air-valve assembly, cooling fans, two of which cylinder is arranged symmetrically on electricity
The upper and lower of arbor, can also left and right arrangement, two cylinder coaxials.Connecting rod is sleeved on motor shaft by radial ball bearing, eccentric block
On, two needle bearings with single-side sealing structure, this toggle band piston are respectively arranged with every small end of connecting rod
Realize the reciprocating motion in cylinder.Equipped with intake valve, valve plate, air bleeding valve between cylinder and cylinder cap, valve plate is plate armature, if
There is inlet and outlet runner.Cylinder cap is enterprising, discharge chamber.The invention fuel-economizing, environmental protection, Operation and Maintenance are simple.But the motor shaft of motor passes through
Eccentric block, radial ball bearing, connecting rod, needle roller bearing without inner ring, piston pin band piston pump in cylinder, to gas
Air in cylinder carries out air-breathing, compression, exhaust.But eccentric shaft uses direct-connected driving, this direct-connected mode structure with electric machine main shaft
There are the long vibrations of cantilever greatly, cause motor front end bearing load excessive, and be limited to motor assembly technology.
In another example Authorization Notice No. is the Chinese utility model patent of 203374444 U of CN, it discloses a kind of motor-car use
Miniature no oil lubrication type reciprocating piston formula air compressor, including connecting rod, the bent axle being fixed on inside crankcase, consolidates with crankcase
Surely the motor and cylinder connected, is arranged on the piston and piston pin of cylinder interior, the bent axle selects split type bent axle, described
Split type bent axle is fixedly connected with motor.The utility model saves by the way of split type bent axle and motor are directly connected to
The components such as shaft coupling have been removed, have simplified machine construction, have alleviated machine weight, simple and compact for structure, small, part is few, system
Cause low, disclosure satisfy that the requirement of motor-car application.Structure exists by the way of split type bent axle and motor are directly connected to
The long vibrations of cantilever are big, cause motor front end bearing load excessive, and are limited to motor assembly technology, end bearing and axis before motor
It is mostly clearance fit to hold room, aggravates raceway abrasion after long-time use under this operating mode, causes bearing play oil leak final
Cause bearing stuck, burn-down of electrical machinery failure.
The content of the invention
In order to solve above-mentioned technological deficiency existing in the prior art, it is an object of the invention to provide a kind of automobile-used electric drive
Oil-free piston type air compressor, appearance and size is big in the prior art, weight is bigger than normal for solution, motor is burned out failure, noise is big
The problem of.
In order to realize above-mentioned purpose of design, the scheme that the present invention uses is as follows：
A kind of automobile-used electric drive oil-free piston type air compressor of the present invention, including motor, electric machine main shaft, crankcase, flywheel
Axis and connecting rod, crankcase and piston cylinder, the both sides of crankcase are horizontally-opposed two piston cylinders, is respectively arranged with the outside of two-piston cylinder
Valve plate is vented, the motor is bolted on the afterbody of crankcase, the driving flywheel shaft rotation of its electric machine main shaft direct connection, flywheel
Axis is placed in crankcase by a carrying bearing support, and small so as to fulfill motor front end bearing load, motor service life is prolonged
It is long, and have the advantages that noise is small, reliability is high.
Preferably, the outer ring interference of the big carrying bearing support is pressed in the bearing chamber of crankcase.
In any of the above-described scheme preferably, the offset crank mechanism that the side of the flywheel shaft is equipped with, the crank machine
Two deep groove ball bearings are housed on structure, are spaced from each other between two bearings by spacer；A connecting rod is housed on each deep groove ball bearing,
Two connecting rods are arranged symmetrically in 180 degree and in offsets.
In any of the above-described scheme preferably, equipped with axis elasticity on the outside flywheel shaft crank of the deep groove ball bearing
Baffle ring, prevents bearing from deviating from.
In any of the above-described scheme preferably, 5 balances are provided with the flywheel shaft and remove repeated hole.
In any of the above-described scheme preferably, the opposite side of the flywheel shaft is equipped with installation axle.
In any of the above-described scheme preferably, the inner ring of the big carrying bearing support is filled with installation axle interference fit
Match somebody with somebody.
In any of the above-described scheme preferably, installation motor axis hole is equipped with the installation axle.
In any of the above-described scheme preferably, the flywheel shaft is equipped with resigning counterbore and threaded hole.
In any of the above-described scheme preferably, the flywheel shaft by interior hexagonal flush end holding screw by being threaded into hole
Locked on to the flat key of main shaft.
In any of the above-described scheme preferably, installation through-hole is provided with the cylinder cap, by four installation bolts by cylinder
Lid, exhaust valve plate piston cylinder are fixed on crankcase.
In any of the above-described scheme preferably, the straight mouth of installation exhaust valve plate is disposed with the cylinder cap.
In any of the above-described scheme preferably, the lower part of the cylinder cap is equipped with reserved craft thread；The top of cylinder cap is set
Have and the corresponding venthole of air flow channel on crankcase.
In any of the above-described scheme preferably, the front portion of the venthole is equipped with threaded hole.
In any of the above-described scheme preferably, the threaded hole is communicated with air flue.
In any of the above-described scheme preferably, the cylinder cap is equipped with plug close to the side of crankcase；Cylinder cap it is another
Side is equipped with exhaust joint.
In any of the above-described scheme preferably, the front portion of the crankcase is equipped with filter cartridge seat and intake cover, in filter cartridge seat
It is interior that filter core is housed.
In any of the above-described scheme preferably, the top of the crankcase is lived equipped with perforation left and right, for connecting left and right
The air flow channel of compressed air in plug cylinder.
In any of the above-described scheme preferably, the bottom four corners of the crankcase are equipped with through hole.
In any of the above-described scheme preferably, the bottom of the crankcase is additionally provided with for assembly or disassembly flywheel shaft
The threaded hole of interior hexagonal flush end holding screw.
In any of the above-described scheme preferably, inlet suction port is housed on the intake cover.
In any of the above-described scheme preferably, the intake cover is equipped with through hole with filter cartridge seat in same position.
In any of the above-described scheme preferably, the centre of the intake cover is provided with air inlet threaded hole installation air inlet connecting
Head.
In any of the above-described scheme preferably, the head even circumferential of the connecting rod is distributed four air admission holes；Connecting rod
The top on head is equipped with intake leaf.
In any of the above-described scheme preferably, the intake leaf is equipped with venthole corresponding with air admission hole.
In any of the above-described scheme preferably, it is equipped between the air admission hole and venthole between sealing ring and piston cylinder
Keep sealing.
In any of the above-described scheme preferably, the top of the intake leaf is equipped with one-way air inlet valve block.
In any of the above-described scheme preferably, the afterbody of the connecting rod is equipped with bearing mounting hole, for connecting rod to be installed
Fixed on the deep groove ball bearing of flywheel shaft, and with fastening bolt.
In any of the above-described scheme preferably, uniformly distributed multiple exhausting-gas holes on the circumference of the exhaust valve plate；It is vented valve plate
Center be provided with threaded hole.
In any of the above-described scheme preferably, it is placed with one-way exhaust valve block above the exhaust valve plate and exhaust limits
Journey plate.
In any of the above-described scheme preferably, the surrounding of the exhaust stroke limit plate is tilted upward single in exhaust process to limit
Raise up to exhaust valve plate.
In any of the above-described scheme preferably, the lower section of the exhaust valve plate is equipped with counterbore, for stepping down on connecting rod
Installation bolt reduces clearance volume purpose to reach.
In any of the above-described scheme preferably, the motor selects permanent magnet synchronous motor.
In any of the above-described scheme preferably, the afterbody of the motor lays two cooling wind by blower tray
Fan.
In any of the above-described scheme preferably, the compressor complete machine is placed in rubber damper by mounting bracket
On.
Brief description of the drawings
Fig. 1 is the solid of a preferred embodiment of automobile-used electric drive oil-free piston type air compressor according to the invention
Figure.
Fig. 2 is preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
Front view.
Fig. 3 is preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
Side view.
Fig. 4 is preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
Sectional view.
Fig. 5 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The sectional view of connecting rod.
Fig. 6 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The stereogram of connecting rod.
Fig. 7 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
It is vented the stereogram of valve plate.
Fig. 8 is in preferred embodiment shown in Fig. 7 of automobile-used electric drive oil-free piston type air compressor according to the invention
It is vented the polycrystalline substance schematic diagram of valve plate.
Fig. 9 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
It is vented the sectional view of valve plate.
Figure 10 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The stereogram of flywheel shaft.
Figure 11 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The side view of flywheel shaft.
Figure 12 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The sectional view of flywheel shaft.
Figure 13 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The stereogram of crankcase.
Figure 14 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The polycrystalline substance schematic diagram of crankcase.
Figure 15 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The sectional drawing of cylinder cap.
Figure 16 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The stereogram of cylinder cap.
Figure 17 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The polycrystalline substance schematic diagram of cylinder cap.
Figure 18 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The structure diagram of filtration apparatus.
Figure 19 is in preferred embodiment shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The structure diagram of cooling device.
Embodiment
It is that the following description is substantially merely exemplary and be not intended to the limitation disclosure, application or purposes.Below
The embodiment of the automobile-used electric drive oil-free piston type air compressor of the present invention is made with reference to Figure of description further
Explanation.
As Figure 1-Figure 4, the structure diagram of automobile-used electric drive oil-free piston type air compressor according to the invention.
A kind of automobile-used electric drive oil-free piston type air compressor of the present invention, including motor 1, electric machine main shaft 3, crankcase
4th, flywheel shaft 5 and connecting rod 6, crankcase and piston cylinder 9, the both sides of crankcase 4 are horizontally-opposed two piston cylinders 9, two-piston cylinder 9
Outside be respectively arranged with exhaust valve plate 7, the motor 1 is fixed on the afterbody of crankcase 4 by bolt 2, its 3 direct connection of electric machine main shaft drives
Dynamic flywheel shaft 5 rotates, and flywheel shaft 5 is placed in crankcase 4 by a carrying bearing support 15, so as to fulfill end bearing before motor
Load is small, and motor service life extends, and has the advantages that noise is small, reliability is high.
The course of work of automobile-used electric drive oil-free piston type air compressor of the present invention is：
Flywheel shaft 5 is pressed with a big load spring bearing 15, its bearing outer ring interference is pressed in crankcase 4.Electric machine main shaft 3 is pacified
It is put in flywheel axis hole 41, and drives flywheel shaft 5 to rotate by flat key direct connection, the connecting rod being placed on flywheel shaft eccentric mechanism 36
6 just pump, the swept volume being made of at this time the exhaust valve plate 7 of connecting rod 6, piston cylinder 9, integrated one-way exhaust
Then generating period changes.When connecting rod 6 is moved from top dead centre to lower dead center, gradually increase forms negative pressure to swept volume, outside
Under the action of boundary's atmospheric pressure, gas enters crankcase after being filtered along inlet suction port 13 by the filter core 11 in filter cartridge seat 10
Inside 4, the one-way air inlet valve block 28 on connecting rod 6 is pushed open, into working chamber, untill swept volume maximum, air inlet
Valve block 28 is closed；When 6 counter motion of connecting rod, move from bottom dead center to top dead center, swept volume reduces, and gas is compressed, pressure
Gradually rise until promotion exhaust valve plate 33, discharges compressed gas.Flywheel shaft 5 rotates a circle in a word, and connecting rod makes a round trip, work
Intracavitary realizes air inlet, compression, the process of exhaust in succession, that is, completes a working cycles.
The automobile-used electric drive oil-free piston type air compressor of the present invention uses the horizontally-opposed structure of 180 degree.Motor 1 is placed
In 4 afterbody of crankcase, its 3 direct connection of electric machine main shaft driving flywheel shaft 5 rotates, and flywheel shaft 5 is placed by a carrying bearing support 15
In in crankcase 4.The offset crank mechanism 36 of flywheel shaft 5 is equipped with two deep groove ball bearings 39, has 37 phase of spacer between two bearings
Mutually separate.A connecting rod 6 is housed on each bearing, two connecting rods are arranged symmetrically in 180 degree and in offset certain distance.Bent axle
4 both sides of case are horizontally-opposed two-piston cylinder 9, and the outside of two-piston cylinder 9 is respectively arranged with exhaust valve plate 7, is vented on valve plate 7 equipped with unidirectional
Exhaust valve plate 33, its outside are disposed with one-way exhaust valve block 33 and raise up the stroke limit plate 32 of distance.Four installation bolts 20 pass through cylinder
Installation through-hole 61 on lid 8, cylinder cap 8, exhaust valve plate 7, piston cylinder 9 are fixed on crankcase 4.In addition it is anterior in crankcase 4
Equipped with filter cartridge seat 10 and intake cover 12, filter core 11 is housed in filter cartridge seat 10, inlet suction port 13, work are housed on air inlet end cap 12
Air is entered inside crankcase 4 along inlet suction port 13 by the filtering of filter core 11 when making, and is pushed air-intake valve plate 28 open and is entered in working chamber.
In the air compressor machine course of work, both sides working chamber alternately realizes air inlet, exhaust, and both sides compressed gas is discharged via exhaust valve plate 7
Afterwards, air flue 63 rises convergence along both sides cylinder cap 8, is discharged by the exhaust joint on side cylinder cap 8.In addition the afterbody of motor passes through
Blower tray 19 lays two cooling fans 16；Complete machine is placed on rubber damper 17 by mounting bracket 18, reduces complete machine
Noise.
As shown in Figure 5, Figure 6, shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention preferably
The structure diagram of connecting rod in embodiment.
The head even circumferential of connecting rod 6 is distributed four air admission holes 23, opposite with 26 position of venthole on intake leaf 25
Should；It is equipped between air admission hole 23 and venthole 26 between sealing ring 24 and piston cylinder 9 and keeps sealing；Have on intake leaf 25
One-way air inlet valve block 28；Air-intake valve plate 28, intake leaf 25, sealing ring 24 are fixed on connecting rod 6 by fastening bolt 27；Connecting rod 6
Afterbody has bearing mounting hole 29, for being fixed by the deep groove ball bearing 39 of 6 Flywheel axis 5 of connecting rod, and with fastening bolt 30.
In the present embodiment, the head even circumferential of the connecting rod 6 is distributed four air admission holes 23；The head of connecting rod 6 it is upper
Side is equipped with intake leaf 25.
In the present embodiment, the intake leaf 25 is equipped with venthole 26 corresponding with air admission hole 23.
In the present embodiment, it is equipped between the air admission hole 23 and venthole 26 and is kept between sealing ring 24 and piston cylinder 9
Sealing.
In the present embodiment, the top of the intake leaf 25 is equipped with one-way air inlet valve block 28.
In the present embodiment, the afterbody of the connecting rod 6 is equipped with bearing mounting hole 29, for connecting rod 6 to be installed on flywheel shaft 5
Deep groove ball bearing 39 on, and fixed with fastening bolt 30.
Above-mentioned purpose of design is to allow natural air to enter in swept volume and compress from the lower section of connecting rod 6, and reaches drop
Low 4 internals temperature of crankcase.
Referring next to shown in Fig. 7-Fig. 9, Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The structure diagram of valve plate is vented in shown preferred embodiment.
It is vented uniformly distributed multiple exhausting-gas holes 34 on the circumference of valve plate 7 and has threaded hole at center, places one-way exhaust on the top
Exhaust valve plate 33 and exhaust stroke limit plate 32 are fixed on exhaust valve plate 7 by valve block 33 and exhaust stroke limit plate 32, installation bolt 31；
The surrounding of exhaust stroke limit plate 32 tilts upward certain angle and is raised up with limiting one-way exhaust valve block 33 in exhaust process；In exhaust valve plate
7 lower sections are equipped with counterbore 35, and clearance volume purpose is reduced to reach for stepping down the installation bolt 27 on connecting rod 6.
In the present embodiment, uniformly distributed multiple exhausting-gas holes 34 on the circumference of the exhaust valve plate 7；Open at the center of exhaust valve plate 7
There is threaded hole.
In the present embodiment, the top of the exhaust valve plate 7 is placed with one-way exhaust valve block 33 and exhaust stroke limit plate 32.
In the present embodiment, the surrounding of the exhaust stroke limit plate 32 is tilted upward to limit one-way exhaust valve block in exhaust process
33 raise up.
In the present embodiment, the lower section of the exhaust valve plate 7 is equipped with counterbore 35.
Above-mentioned is exhaust valve plate assembly, its role is to discharge gas after compression, and avoids 7 outside of exhaust valve plate high
Gas backstreaming cylinder body is pressed, plays the role of one-way guide flow, exhaust 32 purpose of design of stroke limit plate is to avoid exhaust valve plate 33 from opening
Height cannot close in time.
It is excellent shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention as shown in Figure 10-Figure 12
Select the structure diagram of flywheel shaft in embodiment.
Flywheel shaft 5 play reduction rotation it is uneven, improve stablize, reduce the effect of vibrations.The side of flywheel shaft 5 is bias
Crank 36, equipped with a pair of of deep groove ball bearing 39 on crank 36, is spaced from each other between two bearings using spacer 37, and outside
Side is equipped with circlip for shaft 38.5 balances are provided with flywheel shaft 5 and remove repeated hole 40, so as to meet the situation of requirement
The lower weight for reducing flywheel shaft；The opposite side of flywheel shaft 5 is equipped with installation axle 44, inner ring and 44 mistake of installation axle of big loading bearing 15
Cooperation of being full of is assembled；Installation motor axis hole 41 is equipped with installation axle 44, the electric machine main shaft 3 of permanent magnet synchronous motor 1 passes through a flat key
It is coupled；In addition flywheel shaft 5 is equipped with resigning counterbore 42 and threaded hole 43, and interior hexagonal flush end holding screw 14 passes through screw thread
Hole 43 is threaded on 3 flat key of main shaft and locks flywheel shaft 5.
In the present embodiment, circlip for shaft 38 is housed on the outside flywheel shaft crank of the deep groove ball bearing 39, is prevented
Only bearing is deviate from.
In the present embodiment, the opposite side of the flywheel shaft 5 is equipped with installation axle 44.
In the present embodiment, the inner ring and 44 interference fit of installation axle of the big carrying bearing support 15.
In the present embodiment, installation motor axis hole 41, the fixed installation for motor 1 are equipped with the installation axle 44.
In the present embodiment, the flywheel shaft 5 is equipped with resigning counterbore 42 and threaded hole 43.
In the present embodiment, the flywheel shaft 5 by interior hexagonal flush end holding screw 14 by being threaded into hole 43 to main shaft 3
Flat key on lock.
Above-mentioned is embodiment, is each component connection mode, transmits the power of motor.
It is excellent shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention as shown in Figure 13, Figure 14
Select the structure diagram of crankcase in embodiment.
There is the straight mouth 46 of the installation of permanent magnet synchronous motor 1 at the back side of crankcase 4, and is distributed four on end face and is used to install electricity
The threaded hole 45 of machine；It is further provided with bearing chamber 48, big 15 outer ring of loading bearing and 48 interference fit of bearing chamber；In addition also
There are the reserved screwed hole 49 of three same sizes, and the threaded hole 47,59 that the back side, positive same position are reserved；Have in front
The mounting hole 58 of filter cartridge seat 10 and four installation threaded holes 57 on end face；There is 9 mounting hole 52,56 of piston cylinder respectively in both sides
And four installation threaded holes 51,55 are distributed on end face respectively.Perforation left and right is equipped with the top of crankcase 4, for connecting
The air flow channel 50 of compressed air in the piston cylinder of left and right；It is equipped with 4 bottom four direction of crankcase and is used to fixed crankshaft be installed
The through hole 53 of case, and also it is useful for the threaded hole 54 of the interior hexagonal flush end holding screw 14 of assembly or disassembly flywheel shaft 5.
In the present embodiment, the outer ring interference of the big carrying bearing support 15 is pressed in the bearing chamber 48 of crankcase 4.
In the present embodiment, the front portion of the crankcase 4 is equipped with filter cartridge seat 10 and intake cover 12, is equipped with filter cartridge seat 10
Filter core 11.
In the present embodiment, the top of the crankcase 4 is equipped with perforation left and right, sky is compressed in the piston cylinder of left and right for connecting
The air flow channel 50 of gas.
In the present embodiment, the bottom four corners of the crankcase 4 are equipped with through hole 53.
In the present embodiment, the bottom of the crankcase 4 is additionally provided with the interior hexagonal flush end for assembly or disassembly flywheel shaft 5
The threaded hole 54 of holding screw 14.
In the present embodiment, inlet suction port 13 is housed on the intake cover 12.
In the present embodiment, the intake cover 12 is equipped with through hole 66 with filter cartridge seat 10 in same position.
The structure bearing chamber 48 in crankcase 4, and be interference fitted with big loading bearing 15 and shorten flywheel shaft 5 to reach
Hron spacing, mitigates motor front axle endurance, reduces compressor operation vibration, extends the purpose of air compressor machine service life.Air
Runner 50 uses concealed layout designs, connects both sides compressed gas, saves external connection pipeline, make air compressor machine compact,
Compact-sized, good appearance, saves cost.
It is excellent shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention as shown in Figure 15-Figure 17
Select the structure diagram of cylinder cap in embodiment.
The straight mouth 60 of installation exhaust valve plate 7 is disposed with cylinder cap 8, and distribution is installed with 4 both sides of crankcase on end face
Threaded hole 51, corresponding four through holes 61 in 55 positions, installation bolt 20 is by mounting hole 61, by exhaust valve plate 7, piston cylinder 9
Fixed on crankcase 4；Reserved craft thread hole 62 is equipped with the lower part of cylinder cap 8, is equipped with and 4 air flow channel of crankcase on top
50 corresponding ventholes 64；The front portion of venthole 64 is equipped with threaded hole 65,8 installed plug 21 of cylinder cap of crankcase side, separately
The cylinder cap installation exhaust joint of side；Both sides compressed air rises through crankcase 4 after the exhaust discharge of valve plate 7 along air flue 63
Air flow channel 50 converges, and discharges, is filled with gas receiver from the side cylinder cap 8 equipped with exhaust joint.
In the present embodiment, the straight mouth 60 of installation exhaust valve plate 7 is disposed with the cylinder cap 8.
In the present embodiment, the lower part of the cylinder cap 8 is equipped with reserved craft thread 62；The top of cylinder cap 8 is equipped with and bent axle
The corresponding venthole 64 of air flow channel 50 on case 4.
In the present embodiment, the front portion of the venthole 64 is equipped with threaded hole 65.
In the present embodiment, the threaded hole 65 is communicated with air flue 63.
In the present embodiment, the cylinder cap 8 is equipped with plug 21 close to the side of crankcase 4；The opposite side of cylinder cap 8 is equipped with row
Gas connector.
Embedded design makes exhaust valve plate 7 be installed on by straight mouth 60 in cylinder cap 8, reduces installation volume；Drawn inside cylinder cap 8
Sky does compression air flow channel and mitigates weight, reduces noise when compressed gas excludes.
Referring next to shown in Figure 18, Fig. 1 institutes of automobile-used electric drive oil-free piston type air compressor according to the invention
Show the structure diagram of filtration apparatus in preferred embodiment.
Intake cover 12 is equipped with through hole 66 with filter cartridge seat 10 in same position, and corresponding with the threaded hole 57 of crankcase 4,
Bolt 67 is through through hole 66 by filtration apparatus fixation and crankcase.Wherein filter core 11 is placed in filter cartridge seat 10, and by air inlet
Lid 12 carries out spacing.The centre of intake cover 12 is provided with air inlet threaded hole installation inlet suction port 13.When air compressor machine works, bent axle
Case 4 is internally formed negative pressure, and air is illustrated in fig. 7 shown below airflow direction and enters crankcase 4.
Finally refer to shown in Figure 19, shown in Fig. 1 of automobile-used electric drive oil-free piston type air compressor according to the invention
The structure diagram of cooling device in preferred embodiment.
There are the mounting hole 68 of cooling fan 16 in 19 both sides of blower tray, by six installation bolts by two cooling fans 16
It is fixed on 19 both sides of blower tray；The center of blower tray 19 is equipped with mounting hole 70 and is used to position with motor afterbody, passes through peace
Dress hole 69 is fixed on motor afterbody, it is combined into one with motor.
It will be apparent to those skilled in the art that the automobile-used electric drive oil-free piston type air compressor of the present invention includes this theory
Any combination of each several part in bright book.It is that these combinations are not detailed one by one herein as space is limited and in order to make specification concise
Introduce, but after having seen this specification, the scope of the present invention that any combination of each several part being made of this specification is formed is
It is self-evident.
Claims (10)
1. a kind of automobile-used electric drive oil-free piston type air compressor, including motor（1）, electric machine main shaft（3）, crankcase（4）, fly
Wheel shaft（5）And connecting rod（6）, cylinder cap（8）And piston cylinder（9）, crankcase（4）Both sides horizontally-opposed have two piston cylinders（9）, two
Piston cylinder（9）Outside be respectively arranged with exhaust valve plate（7）, it is characterised in that：Motor（1）Pass through bolt（2）It is fixed on crankcase（4）
Afterbody, its electric machine main shaft（3）Direct connection drives flywheel shaft（5）Rotation, flywheel shaft（5）Pass through a big carrying bearing support（15）Peace
It is put in crankcase（4）It is interior.
2. automobile-used electric drive oil-free piston type air compressor as claimed in claim 1, it is characterised in that：Big carrying support shaft
Hold（15）Outer ring interference be pressed in crankcase（4）Bearing chamber（48）It is interior.
3. automobile-used electric drive oil-free piston type air compressor as claimed in claim 1, it is characterised in that：Flywheel shaft（5）'s
The offset crank mechanism that side is equipped with（36）, two deep groove ball bearings are housed on the crank mechanism（39）, between two bearings by every
Set（37）It is spaced from each other；Each deep groove ball bearing（39）It is upper that a connecting rod is housed（6）, two connecting rods be arranged symmetrically in 180 degree and
Offset.
4. automobile-used electric drive oil-free piston type air compressor as claimed in claim 3, it is characterised in that：Deep groove ball bearing
（39）Outside flywheel shaft crank on circlip for shaft is housed（38）.
5. the automobile-used electric drive oil-free piston type air compressor as described in claim 1 or 3, it is characterised in that：Flywheel shaft（5）
On be provided with 5 balances and remove repeated hole（40）.
6. the automobile-used electric drive oil-free piston type air compressor as described in claim 1 or 3, it is characterised in that：Flywheel shaft（5）
Opposite side be equipped with installation axle（44）.
7. automobile-used electric drive oil-free piston type air compressor as claimed in claim 1 or 2, it is characterised in that：Big carrying branch
Hold bearing（15）Inner ring and installation axle（44）Interference fit.
8. automobile-used electric drive oil-free piston type air compressor as claimed in claim 7, it is characterised in that：Installation axle（44）It is interior
Equipped with installation motor axis hole（41）.
9. the automobile-used electric drive oil-free piston type air compressor as described in claim 1 or 3, it is characterised in that：Flywheel shaft（5）
It is equipped with resigning counterbore（42）And threaded hole（43）.
10. the automobile-used electric drive oil-free piston type air compressor as described in claim 1 or 3, it is characterised in that：Flywheel shaft
（5）By by interior hexagonal flush end holding screw（14）It is threaded into hole（43）To main shaft（3）Flat key on lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298143.5A CN107917059A (en) | 2017-12-08 | 2017-12-08 | A kind of automobile-used electric drive oil-free piston type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298143.5A CN107917059A (en) | 2017-12-08 | 2017-12-08 | A kind of automobile-used electric drive oil-free piston type air compressor |
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| Publication Number | Publication Date |
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| CN107917059A true CN107917059A (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711298143.5A Pending CN107917059A (en) | 2017-12-08 | 2017-12-08 | A kind of automobile-used electric drive oil-free piston type air compressor |
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| CN109404248A (en) * | 2018-10-17 | 2019-03-01 | 瑞立集团瑞安汽车零部件有限公司 | A kind of vehicle mounted electric oil-free air compressor |
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Effective date of registration: 20210625 Address after: No.2666, Development Zone Avenue, Ruian Economic Development Zone, Wenzhou, Zhejiang 325200 Applicant after: Zhejiang Ruili air compressor equipment Co.,Ltd. Address before: Ruian City, Wenzhou City, 325200 Zhejiang Province Economic Development Zone No. 1169 Meng Lu Applicant before: Ruili Group Ruian Auto Parts Co.,Ltd. |