CN208153274U - 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
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- CN208153274U CN208153274U CN201820634170.9U CN201820634170U CN208153274U CN 208153274 U CN208153274 U CN 208153274U CN 201820634170 U CN201820634170 U CN 201820634170U CN 208153274 U CN208153274 U CN 208153274U
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- vacuum pump
- crankcase
- motor
- horizontally
- cylinders
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Abstract
The utility model 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 the crankcase for being placed in both ends of motor shaft left and right ends, two groups of eccentric wheels being sheathed on motor shaft are provided in each crankcase, side horizontal symmetrical is provided with two groups of vacuum pump components before and after each crankcase, it is connected between vacuum pump component and eccentric wheel by connecting rod, inside and outside two groups of fans are also coaxially arranged 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 when internal fan rotation to motor drive direction；The utility model 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 utility model relates to vacuum pump technology, specifically a kind of horizontally-opposed air-cooled vacuum pump of four cylinders.
Background technique
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 two sides, cylinder body is located at the top of crankcase, vibration when in order to reduce vacuum pump work, in motor shaft
On need to be arranged clump weight, 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.
Utility model content
The purpose of this utility model is to provide a kind of horizontally-opposed air-cooled vacuum pumps of four cylinders, and four vacuum pump components are two-by-two
It is distributed in the both ends of motor, and is in horizontally-opposed setting, eccentric wheel carrier phase shift 180 degree, when work passes through symmetrical two
Vacuum pump component cancels out each other effectively to mitigate vibration when vacuum pump work；The unique double fan being provided with of cooperation and double wind
Road structure effectively improves the radiating efficiency of vacuum pump, so that vacuum pump is chronically at low operating temperatures, can effectively extend machine
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：Have
Two crankcases are distributed in the left and right ends of motor, in the crankcase for being placed in both ends of motor shaft left and right ends, Mei Gequ
Two groups of eccentric wheels being sheathed on motor shaft are provided in axle box, side horizontal symmetrical is provided with two groups before and after each crankcase
Vacuum pump component is connected between vacuum pump component and eccentric wheel by connecting rod, also same in two groups of eccentric wheel left and right ends
Axis is provided with inside and outside two groups of fans, vacuum pump component when wherein external fan rotates on rear side of wind forward, and when internal fan rotation
It dries to motor drive direction.
End air inlet is offered in the crankcase outer end；The center setting bearing block and axis of crankcase inner face
Bearing bore, motor shaft are arranged on bearing block by bearing, and motor shaft passes through bearing hole and extends 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 with motor shaft coaxial arrangement, 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 greater 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 and electric machine casing end contact,
The axial ribs and radiating fin correspond.
Port is arranged in the outer end of the crankcase, is closed at port by end cap, the end air inlet setting
On end cap.
The front and back side horizontal symmetrical of the crankcase is provided with attachment base, offers circular hole in attachment base, circular hole with
Several air-guiding holes are also provided between on the inside of attachment base；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 attachment base cooperate, cover board connect by screw rod with attachment base and by housing and cylinder sleeve be coaxially fixed on attachment base 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.
Radiating fin is provided in the outer surface of the crankcase, end cap and cylinder cap.
The relatively existing vacuum pump of the utility model mainly uses the horizontally-opposed setting of four cylinders, due to phase angle between cylinder body
Just on the contrary, active force is cancelled out each other, vibration when vacuum pump work can be effectively reduced；Due to being set using four cylinders are horizontally-opposed
Clump weight can be saved by setting, while the position for installing clump weight be increased an internal fan, and by heat dissipation by carrying out again
Setting is dried so that internal fan is entered the wind from crankcase side to intermediate motor drive direction；And external fan from the end of crankcase into
Wind, at left and right sides of crankcase vacuum pump component blowing, while to motor, crankcase, eccentric wheel, vacuum pump component cylinder sleeve
It is air-cooled with piston progress, so that the utility model vacuum pump has lower operating temperature, to extend the service life of machine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model；
Fig. 2 is the schematic diagram of internal structure of the utility model；
Fig. 3 is the decomposition texture schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of the utility model crankcase end；
Fig. 5 is the structural schematic diagram of the utility model crankcase side.
Specific embodiment
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, are placed in two 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 provided in each crankcase 2, in each crankshaft
2 front and back side horizontal symmetrical of case is provided with two groups of vacuum pump components 3, is connected between vacuum pump component 3 and eccentric wheel 21 by connecting rod,
It is also coaxially arranged with internal fan 22 and external fan 23 in two groups of 21 left and right ends of eccentric wheel, when wherein external fan 23 rotates
Vacuum pump component 3 on rear side of wind forward, and dry when the rotation of internal fan 22 to 1 direction of motor.
End air inlet 24 is offered in 2 outer end of crankcase；Bearing block is arranged in the center of 2 inner face of crankcase
25 and bearing hole 26, motor shaft 11 is arranged on bearing block 25 by bearing, and motor shaft 11 passes through bearing hole 26 and extends as crankshaft
In case 2, the periphery of the bearing block 25 of 2 inner face of crankcase is provided with several end air outlets 27,2 side wall of crankcase
Several side air inlets 28 are installed 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 greater 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
The blowing mouth 52 of dry annular distribution, the outer end of the crankcase 2 is arranged port, is closed at port by end cap 29, 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 attachment base 20, in attachment base 20
Circular hole 61 is offered, is also provided with several air-guiding holes 62 between 20 inside of circular hole 61 and attachment base；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 21,36 one end of housing are matched with attachment base 20
Close, cover board 34 connect by screw rod with attachment base 20 and by housing 36 and cylinder sleeve 33 be coaxially fixed on attachment base 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 makes the cooling duct that a vacuum pump component 3 is formed 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 and radiating fin 12 correspond；In the appearance of the crankcase 2, end cap 29 and cylinder cap 35
Face is provided with radiating fin.
The relatively existing vacuum pump of the utility model mainly uses the horizontally-opposed setting of four cylinders, due to phase angle between cylinder body
Just 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 25, 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 cooled down simultaneously inside and outside motor；Simultaneously
External fan is entered the wind from the end of crankcase, is dried through external fan to the air-guiding hole 62 at left and right sides of crankcase, then through 36 He of housing
Chamber and wind guide tank 37 between cylinder sleeve 33 are discharged；The utility model is simultaneously to motor, crankcase, eccentric wheel, vacuum pump component
Cylinder sleeve and piston carry out cold air circulating cooling so that the utility model have lower operating temperature, to extend machine
Service 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 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 by connecting rod connect, in two groups of eccentric wheels（21）Left and right ends are also coaxially arranged with internal fan（22）And external fan
（23）, wherein external fan（23）Vacuum pump component when rotation on rear side of wind forward（3）, and internal fan（22）To motor when rotation
（1）Direction blowing.
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）Bearing block is arranged in the center 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 crankshaft
Case（2）It is interior, in crankcase（2）The bearing block of inner face（25）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 greater 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
Touching, 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 attachment base（20）, attachment base（20）Inside offer circular hole（61）, in circular hole
（61）With attachment base（20）Several air-guiding holes are also provided 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
（36）One end and attachment base（20）Cooperation, cover board（34）Pass through screw rod and attachment base（20）It connects and by housing（36）And cylinder sleeve
（33）Coaxially it is fixed on attachment base（20）And cover board（34）Between, in housing（36）End offers wind guide tank（37）, logical in this way
Cross air-guiding hole（62）, housing（36）And cylinder sleeve（33）Between chamber and wind guide tank（37）So that crankcase（2）Between the external world
Form a 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 |
|---|---|---|---|
| CN2017214979859 | 2017-11-11 | ||
| CN201721497985 | 2017-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153274U true CN208153274U (en) | 2018-11-27 |
Family
ID=64376829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820634170.9U Expired - Fee Related CN208153274U (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) | CN208153274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343582A (en) * | 2017-11-11 | 2018-07-31 | 罗文青 | A kind of horizontally-opposed air-cooled vacuum pump of four cylinders |
-
2018
- 2018-04-29 CN CN201820634170.9U patent/CN208153274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343582A (en) * | 2017-11-11 | 2018-07-31 | 罗文青 | A kind of horizontally-opposed air-cooled vacuum pump of four cylinders |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 |