CN108343582A - A kind of horizontally-opposed air-cooled vacuum pump of four cylinders - Google Patents
A kind of horizontally-opposed air-cooled vacuum pump of four cylinders Download PDFInfo
- Publication number
- CN108343582A CN108343582A CN201810405752.4A CN201810405752A CN108343582A CN 108343582 A CN108343582 A CN 108343582A CN 201810405752 A CN201810405752 A CN 201810405752A CN 108343582 A CN108343582 A CN 108343582A
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- crankcase
- horizontally
- motor
- cylinders
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007664 blowing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Classifications
-
- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
-
- 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
-
- 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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/066—Cooling by ventilation
Abstract
The present invention relates to a kind of horizontally-opposed air-cooled vacuum pumps of four cylinders, including motor, crankcase and vacuum pump component, there are two the left and right ends that crankcase is distributed in motor, in being placed in the crankcase at both ends for motor shaft left and right ends, it is both provided with two groups of eccentric wheels being sheathed on motor shaft in each crankcase, side horizontal symmetrical is provided with two groups of vacuum pump components before and after each crankcase, it is connected by connecting rod between vacuum pump component and eccentric wheel, it is also coaxially arranged with inside and outside two groups of fans in two groups of eccentric wheel left and right ends, vacuum pump component when wherein external fan rotates on rear side of wind forward, and it dries to motor drive direction when internal fan rotation；The present invention cancels out each other effectively to mitigate vibration when vacuum pump work by symmetrical two vacuum pump components；The unique double fan being provided with of cooperation and double air channel structures, effectively improve the radiating efficiency of vacuum pump so that vacuum pump is chronically at low operating temperatures, can effectively extend the service life of machine.
Description
Technical field
The present invention relates to vacuum pump technology, specifically a kind of horizontally-opposed air-cooled vacuum pump of four cylinders.
Background technology
Existing vacuum pump generally comprises motor, crankcase and vacuum pump component, and motor has motor housing and motor side
Lid, crankcase are fixedly mounted on electric motor end cap, and eccentric wheel is mounted on motor shaft, and vacuum pump component is connected eccentric by connecting rod
Wheel when work, motor band movable eccentric wheel and then realizes connecting rod piston movement, and connecting rod piston fortune realizes that vacuum pump component vacuumizes work
Make；Vacuum pump component has single cylinder and multi-cylinder according to actual needs, and wherein multi-cylinder vacuum pump is generally twin-tub or four cylinders are in the majority, twin-tub
Or four cylinder distribution motor both sides, cylinder body is located at the top of crankcase, vibrated when vacuum pump work to reduce, in motor shaft
On need that clump weight is arranged, the phase angle of cooperation is opposite with eccentric wheel；In addition that there is also radiating efficiencys is bad for existing vacuum pump
The problem of, radiating efficiency will directly influence the service life of vacuum pump.
Invention content
The purpose of the present invention is to provide a kind of horizontally-opposed air-cooled vacuum pump of four cylinders, four vacuum pump components are distributed two-by-two
At the both ends of motor, and it is in horizontally-opposed setting, eccentric wheel carrier phase shift 180 degree, when work passes through symmetrical two vacuum
Pump group part cancels out each other effectively to mitigate vibration when vacuum pump work；The unique double fan being provided with of cooperation and double air ducts are tied
Structure effectively improves the radiating efficiency of vacuum pump so that vacuum pump is chronically at low operating temperatures, can effectively extend making for machine
Use the service life.
Following technical scheme is used to achieve the above object：
A kind of horizontally-opposed air-cooled vacuum pump of four cylinders, including motor, crankcase and vacuum pump component, it is characterised in that：There are two
Crankcase is distributed in the left and right ends of motor, in being placed in the crankcase at both ends for motor shaft left and right ends, each crankcase
Two groups of eccentric wheels being sheathed on motor shaft are inside both provided with, side horizontal symmetrical is provided with two groups of vacuum before and after each crankcase
Pump group part is connected between vacuum pump component and eccentric wheel by connecting rod, is also coaxially set in two groups of eccentric wheel left and right ends
Inside and outside two groups of fans are equipped with, the vacuum pump component of wind rear side forward when wherein external fan rotates, and to electricity when internal fan rotates
It dries in machine direction.
End air inlet is offered in the crankcase outer end；The centrally disposed bearing block and axis of crankcase inner face
Bearing bore, motor shaft are arranged by bearing on bearing block, and motor shaft passes through bearing hole to extend as in crankcase, in crankcase inner end
The periphery of the bearing block in face is provided with several end air outlets, and the crankcase side wall is corresponded to open up on the position of internal fan and be set
There are several side air inlets.
The loop connecting portion being coaxially disposed with motor shaft, loop connecting are also set up in the outer rim of the crankcase inner end
Several axial ribs are set on portion's inner wall, and the internal diameter of the rib is less than the outer diameter of electric machine casing, the internal diameter in loop connecting portion
Then it is more than the outer diameter of electric machine casing, when motor is connect with crankcase, axial ribs are contacted with electric machine casing end, in axial ribs
The blowing mouth of several annular distributions is formed between motor casing outer rim.
When the electric machine casing periphery is provided with axial radiating fin, and axial ribs are contacted with electric machine casing end,
The axial ribs are corresponded with radiating fin.
Port is arranged in the outer end of the crankcase, is closed by end cap at port, the end air inlet setting
On end cap.
The front and back side horizontal symmetrical of the crankcase is provided with connecting seat, and circular hole is offered in connecting seat, circular hole with
It is further opened with several air-guiding holes between on the inside of connecting seat；The vacuum pump component includes cylinder sleeve, piston, connecting rod, cover board, cylinder cap
And housing, the cylinder sleeve internal diameter match with circular hole size, piston is placed in cylinder sleeve, and connecting rod connects piston and eccentric wheel,
Housing one end and connecting seat coordinate, cover board connect with connecting seat by screw rod and by housing and cylinder sleeve be coaxially fixed on connecting seat and
Between cover board, wind guide tank is offered in housing end, is made in this way by chamber between air-guiding hole, housing and cylinder sleeve and wind guide tank
Obtain the cooling duct that a vacuum pump component is formed between crankcase and the external world.
It is both provided with radiating fin in the outer surface of the crankcase, end cap and cylinder cap.
The relatively existing vacuum pump of the present invention mainly uses the horizontally-opposed setting of four cylinders, since phase angle is just between cylinder body
On the contrary, active force is cancelled out each other, vibration when vacuum pump work can be effectively reduced；Due to using the horizontally-opposed setting of four cylinders can
To save clump weight, while the position for installing clump weight is increased into an internal fan, and by heat dissipation by being reset,
So that internal fan is entered the wind from crankcase side, dry to intermediate motor drive direction；And external fan is entered the wind from the end of crankcase, Xiang Qu
Vacuum pump component blowing at left and right sides of axle box, while to the cylinder sleeve and piston of motor, crankcase, eccentric wheel, vacuum pump component
It carries out air-cooled so that vacuum pump of the present invention has lower operating temperature, to extend the service life of machine.
Description of the drawings
Fig. 1 is the structural schematic diagram of invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the decomposition texture schematic diagram of the present invention；
Fig. 4 is the structural schematic diagram of crankcase end of the present invention；
Fig. 5 is the structural schematic diagram of crankcase side of the present invention.
Specific implementation mode
As shown in Figs. 1-5, the horizontally-opposed air-cooled vacuum pump of a kind of four cylinders, including motor 1, crankcase 2 and vacuum pump component
3, it is characterised in that：There are two the left and right ends that crankcase 2 is distributed in motor 1, and two are placed in 11 left and right ends of motor shaft
In the crankcase 2 at end, two groups of eccentric wheels being sheathed on motor shaft 11 21 are both provided in each crankcase 2, in each bent axle
Side horizontal symmetrical is provided with two groups of vacuum pump components 3 before and after case 2, is connected by connecting rod 21 between vacuum pump component 3 and eccentric wheel 21
It connects, is also coaxially arranged with internal fan 22 and external fan 23 in two groups of 21 left and right ends of eccentric wheel, wherein external fan 23 revolves
Vacuum pump component 3 when turning on rear side of wind forward, and dry to 1 direction of motor when the rotation of internal fan 22.
End air inlet 24 is offered in 2 outer end of crankcase；The centrally disposed bearing block of 2 inner face of crankcase
25 and bearing hole 26, motor shaft 11 is arranged by bearing on bearing block 25, and motor shaft 11 passes through bearing hole 26 to extend as bent axle
In case 2, the periphery of the bearing block 23 of 2 inner face of crankcase is provided with several end air outlets 27,2 side wall of crankcase
It is installed with several side air inlets 28 on the position of corresponding internal fan 22；It is also set in the outer rim of 2 inner end of crankcase
The loop connecting portion 5 being coaxially disposed with motor shaft 11 is set, several axial ribs 51 are set on 5 inner wall of loop connecting portion, it is described
The internal diameter of rib 51 is less than the outer diameter of electric machine casing, and the internal diameter in loop connecting portion 5 is then more than the outer diameter of electric machine casing, motor 1 with
When crankcase 2 connects, axial ribs 51 are contacted with electric machine casing end, if being formed between axial ribs 51 and motor casing outer rim
Port is arranged in the outer end of the blowing mouth 52 of dry annular distribution, the crankcase 2, is closed by end cap 29 at port, described
End air inlet 24 be arranged on end cap 29, the center of the inside of end cap 29 is additionally provided with outer bearing carrier, the end of motor shaft 11
It is arranged on outer bearing carrier by bearing；The front and back side horizontal symmetrical of the crankcase 2 is provided with connecting seat 20, in connecting seat 20
Circular hole 61 is offered, several air-guiding holes 62 are further opened between 20 inside of circular hole 61 and connecting seat；The vacuum pump component 3
Including cylinder sleeve 33, piston 32, connecting rod 31, cover board 34, cylinder cap 35 and housing 36,33 internal diameter of cylinder sleeve and 61 size phase of circular hole
Matching, piston 32 are placed in cylinder sleeve 33, and connecting rod 31 connects piston 32 and eccentric wheel 21,26 one end of housing are matched with connecting seat 20
Close, cover board 34 connect with connecting seat 20 by screw rod and by housing 36 and cylinder sleeve 33 be coaxially fixed on connecting seat 20 and cover board 34 it
Between, wind guide tank 37 is offered in 36 end of housing, passes through the chamber and wind-guiding between air-guiding hole 62, housing 36 and cylinder sleeve 33 in this way
Slot 37 is so that form the cooling duct of a vacuum pump component 3 between crankcase 2 and the external world.
The electric machine casing periphery is provided with axial radiating fin 12, axial ribs 51 are contacted with electric machine casing end
When, the axial ribs 51 are corresponded with radiating fin 12；In the appearance of the crankcase 2, end cap 29 and cylinder cap 35
Face is both provided with radiating fin.
The relatively existing vacuum pump of the present invention mainly uses the horizontally-opposed setting of four cylinders, since phase angle is just between cylinder body
On the contrary, active force is cancelled out each other, vibration when vacuum pump work can be effectively reduced.
Since clump weight can be saved using the horizontally-opposed setting of four cylinders, while the position for installing clump weight is increased by one
Internal fan, and by heat dissipation by being reset so that internal fan is entered the wind from crankcase side, by internal fan from bearing
Several 27 outlet air of end air outlet of the periphery setting of seat 23, then to inside motor and axial ribs 51 and motor casing outer rim it
Between form the blowing mouth 52 of several annular distributions to the radiating fin of motor outer rim, to being carried out at the same time cooling inside and outside motor；Simultaneously
External fan is entered the wind from the end of crankcase, is dried to the air-guiding hole 62 at left and right sides of crankcase through external fan, then through 36 He of housing
Chamber and wind guide tank 37 between cylinder sleeve 33 are discharged；The present invention is simultaneously to the cylinder of motor, crankcase, eccentric wheel, vacuum pump component
Set and piston carry out cold air circulating cooling so that the present invention have lower operating temperature, to extend machine use the longevity
Life.
Claims (8)
1. a kind of horizontally-opposed air-cooled vacuum pump of four cylinders, including motor（1）, crankcase（2）With vacuum pump component（3）, feature
It is：There are two crankcases（2）It is distributed in motor（1）Left and right ends, in motor shaft（11）Left and right ends are placed in both ends
Crankcase（2）It is interior, each crankcase（2）It is inside both provided with two groups and is sheathed on motor shaft（11）On eccentric wheel（21）, every
A crankcase（2）Front and back side horizontal symmetrical is provided with two groups of vacuum pump components（3）, vacuum pump component（3）With eccentric wheel（21）It
Between pass through connecting rod（21）Connection, in two groups of eccentric wheels（21）Left and right ends are also coaxially arranged with internal fan（22）And exogenous wind
Fan（23）, wherein external fan（23）Vacuum pump component when rotation on rear side of wind forward（3）, and internal fan（22）To electricity when rotation
Machine（1）It dries in direction.
2. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as described in claim 1, it is characterised in that：In the crankcase
（2）Outer end offers end air inlet（24）；Crankcase（2）The centrally disposed bearing block of inner face（25）And bearing hole
（26）, motor shaft（11）By bearing, bearing block is set（25）On, motor shaft（11）Across bearing hole（26）Extend as bent axle
Case（2）It is interior, in crankcase（2）The bearing block of inner face（23）Periphery be provided with several end air outlets（27）, the song
Axle box（2）Side wall corresponds to internal fan（22）Position on be installed with several side air inlets（28）.
3. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as claimed in claim 2, it is characterised in that：In the crankcase
（2）The outer rim of inner end is also set up and motor shaft（11）The loop connecting portion of coaxial arrangement（5）, loop connecting portion（5）On inner wall
Several axial ribs are set（51）, the rib（51）Internal diameter be less than electric machine casing outer diameter, loop connecting portion（5）It is interior
Diameter is then more than the outer diameter of electric machine casing, motor（1）With crankcase（2）When connection, axial ribs（51）It is connect with electric machine casing end
It touches, in axial ribs（51）The blowing mouth of several annular distributions is formed between motor casing outer rim（52）.
4. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as claimed in claim 3, it is characterised in that：In the electric machine casing
Periphery is provided with axial radiating fin（12）, axial ribs（51）When being contacted with electric machine casing end, the axial ribs
（51）With radiating fin（12）It corresponds.
5. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as claimed in claim 2, it is characterised in that：The crankcase（2）
Outer end port is set, pass through end cap at port（29）Closing, the end air inlet（24）It is arranged in end cap（29）On,
End cap（29）The center of inside is additionally provided with outer bearing carrier, motor shaft（11）End pass through bearing be arranged outer bearing carrier on.
6. the horizontally-opposed air-cooled vacuum pump of four cylinder of one kind as described in claim 2 to 5 any one, it is characterised in that：It is described
Crankcase（2）Front and back side horizontal symmetrical be provided with connecting seat（20）, connecting seat（20）Inside offer circular hole（61）, in circular hole
（61）With connecting seat（20）Several air-guiding holes are further opened between inside（62）；The vacuum pump component（3）Including cylinder sleeve
（33）, piston（32）, connecting rod（31）, cover board（34）, cylinder cap（35）And housing（36）, the cylinder sleeve（33）Internal diameter and circular hole
（61）Size matches, piston（32）It is placed in cylinder sleeve（33）It is interior, connecting rod（31）Connect piston（32）And eccentric wheel（21）, housing
（26）One end and connecting seat（20）Cooperation, cover board（34）Pass through screw rod and connecting seat（20 connections and by housing（36 and cylinder sleeve 33 it is same
Axis is fixed on connecting seat（20）And cover board（34）Between, in housing（36）End offers wind guide tank（37）, pass through wind-guiding in this way
Hole（62）, housing（36）And cylinder sleeve（33）Between chamber and wind guide tank（37）Make crankcase（2）One is formed between the external world
Bar vacuum pump component（3）Cooling duct.
7. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as claimed in claim 6, it is characterised in that：In the crankcase
（2）And cylinder cap（35）Outer surface be provided with radiating fin.
8. the horizontally-opposed air-cooled vacuum pump of four cylinders of one kind as claimed in claim 5, it is characterised in that：End cap（29）Outer surface
It is provided with radiating fin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017111095390 | 2017-11-11 | ||
| CN201711109539 | 2017-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343582A true CN108343582A (en) | 2018-07-31 |
Family
ID=62956134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810405752.4A Pending CN108343582A (en) | 2017-11-11 | 2018-04-29 | A kind of horizontally-opposed air-cooled vacuum pump of four cylinders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343582A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026615A (en) * | 2018-09-13 | 2018-12-18 | 江苏赫曦新能源有限公司 | A kind of oil-free piston compressor |
| CN109519354A (en) * | 2018-12-04 | 2019-03-26 | 浙江巨霸焊接设备制造有限公司 | A kind of multi-cylinder air compressor machine |
| CN111878350A (en) * | 2020-08-07 | 2020-11-03 | 浙江洛森压缩机股份有限公司 | Safe and efficient automobile-used gas compressor |
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| CN1456809A (en) * | 2003-01-15 | 2003-11-19 | 侯亮 | Miniature balanced compressor without lubricant and vibration |
| JP2009036060A (en) * | 2007-07-31 | 2009-02-19 | Hitachi Ltd | Reciprocating compressor |
| CN203604141U (en) * | 2013-11-19 | 2014-05-21 | 东莞市盈尔电器有限公司 | Vacuum pump of vacuum sealer |
| CN104033356A (en) * | 2013-03-06 | 2014-09-10 | 科沃斯机器人科技(苏州)有限公司 | Crank shaft vacuum air pump and glass cleaning device thereof |
| CN104153963A (en) * | 2014-07-25 | 2014-11-19 | 杨柳 | Oilless compression device with multiple cylinders and opposite pistons |
| CN105402103A (en) * | 2015-12-15 | 2016-03-16 | 浙江盛源空压机制造有限公司 | Direct connection type oilless air compressor |
| CN105781931A (en) * | 2015-12-29 | 2016-07-20 | 瑞立集团瑞安汽车零部件有限公司 | Oilless air compressor |
| CN106468254A (en) * | 2016-08-31 | 2017-03-01 | 浙江山海机械有限公司 | Piston intake heat radiating type oilless air compressor main machine structure |
| CN208153274U (en) * | 2017-11-11 | 2018-11-27 | 罗文青 | A kind of horizontally-opposed air-cooled vacuum pump of four cylinders |
-
2018
- 2018-04-29 CN CN201810405752.4A patent/CN108343582A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456809A (en) * | 2003-01-15 | 2003-11-19 | 侯亮 | Miniature balanced compressor without lubricant and vibration |
| JP2009036060A (en) * | 2007-07-31 | 2009-02-19 | Hitachi Ltd | Reciprocating compressor |
| CN104033356A (en) * | 2013-03-06 | 2014-09-10 | 科沃斯机器人科技(苏州)有限公司 | Crank shaft vacuum air pump and glass cleaning device thereof |
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| CN104153963A (en) * | 2014-07-25 | 2014-11-19 | 杨柳 | Oilless compression device with multiple cylinders and opposite pistons |
| CN105402103A (en) * | 2015-12-15 | 2016-03-16 | 浙江盛源空压机制造有限公司 | Direct connection type oilless air compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026615A (en) * | 2018-09-13 | 2018-12-18 | 江苏赫曦新能源有限公司 | A kind of oil-free piston compressor |
| CN109519354A (en) * | 2018-12-04 | 2019-03-26 | 浙江巨霸焊接设备制造有限公司 | A kind of multi-cylinder air compressor machine |
| CN111878350A (en) * | 2020-08-07 | 2020-11-03 | 浙江洛森压缩机股份有限公司 | Safe and efficient automobile-used gas compressor |
| CN111878350B (en) * | 2020-08-07 | 2022-05-20 | 浙江洛森压缩机股份有限公司 | Safe and efficient automobile-used gas compressor |
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