CN208734546U - A kind of parallel sliding valve vacuum pump of motor direct connection - Google Patents
A kind of parallel sliding valve vacuum pump of motor direct connection Download PDFInfo
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- CN208734546U CN208734546U CN201821355174.XU CN201821355174U CN208734546U CN 208734546 U CN208734546 U CN 208734546U CN 201821355174 U CN201821355174 U CN 201821355174U CN 208734546 U CN208734546 U CN 208734546U
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- slide valve
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- vacuum pump
- direct connection
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Abstract
The utility model belongs to pump technical field, and spy is related to a kind of parallel sliding valve vacuum pump of motor direct connection.Including the pump housing with inlet channel and outlet passageway, there is in the pump housing pump chamber, there are two to be parallel to each other through gear-driven shaft in pump chamber, be equipped with slide valve assembly in two shafts, slide valve assembly includes plunger ring, eccentric wheel, slide valve lever, and slide valve lever has air entry.Two slide valve assemblies move in two cylindrical pump chambers with the rotation of shaft respectively.This parallel slide valve pump has the advantages that compact-sized, discharge capacity is big；Existing second level sliding valve vacuum pump is efficiently solved structure is complicated huge, the technical problems such as practicability deficiency, also solves the problems, such as that existing single-stage sliding valve vacuum pump pumping speed is insufficient.This parallel slide valve pump.
Description
Technical field
The utility model belongs to pump technical field, and spy is related to a kind of parallel sliding valve vacuum pump of motor direct connection.
Background technique
Sliding valve vacuum pump is the abbreviation of side valve type oil sealing mechanical pump.It is a kind of variable displacement type gas transport pump.
The structure of slide-valve vacuum pump mainly by the pump housing and it is internal make the plunger part of eccentric rotary, semicircular plunger is led
The composition such as rail, exhaust valve, axis, plunger ring is equipped in the pump housing, and plunger ring is provided with eccentric wheel, and eccentric wheel is fixed on axis, axis with
Pump housing center line coincides.Rectangular plunger rod is housed on plunger ring, it can be slided up and down in semicircle plunger guide rail
And it swings, therefore the pump housing is divided into two Room A, B by plunger ring and plunger rod.It pumps during operation, since two Room A, B holds
Product is periodically changed, and gas is made constantly to enter the suction chamber that volume is gradually increased；Meanwhile in discharge chamber with the contracting of its volume
It is small and keep gas compressed, and gas is discharged by exhaust valve.
For slide valve pump due to its design feature, capacity is more much bigger than sliding vane rotary pump, therefore is frequently used on huge vacuum installations.
Slide valve pump has two kinds of patterns of single-stage and twin-stage.Limiting pressure≤0.6Pa of single-stage pump, limiting pressure≤0.06Pa of two-stage pump.
Current bipolar 2H sliding valve vacuum pump maximum pumping speed is 300L/s.
Sliding valve vacuum pump generally forms Roots's slide valve vacuum pump set with lobe pump, has energy conservation, vacuum degree is high, high vacuum region
Between sucking rate it is big the advantages that.It is widely used in the vacuum impregnation, true of the transformer of power industry, wire and cable, capacitor
In empty drying process, be vacuum coating, vacuum metling, vacuum heat treatment, vacuum oil filtering, freeze-drying, flight simulation test compared with
Ideal vacuum equipment.
Currently in order to improving the efficiency of sliding valve vacuum pump, the sliding valve vacuum pump of existing tandem, but this tandem slide valve
Vacuum pump have the shortcomings that it is obvious, such as structure is complicated, bulky, discharge capacity is lower.
Summary of the invention
The utility model provides that a kind of pumping speed is fast, vacuum degree to solve the deficiency of existing tandem sliding valve vacuum pump
Height, the parallel slide valve pump for the motor direct connection that structure is simple, compact-sized, vibration noise is small.
The utility model adopts the following technical solution:
A kind of parallel sliding valve vacuum pump of motor direct connection, including motor, gear mechanism and have inlet channel and row
The pump housing in gas channel, the pump housing is interior to be equipped with pump chamber, and two shafts being parallel to each other are equipped in pump chamber, and one is driving shaft, another
Root is driven shaft, and slide valve eccentric rotor mechanism is separately installed on two axis, and two slide valve eccentric rotor mechanisms are non-interference, total
With inlet channel and exhaust passage, motor and active axis connection, driving shaft drive driven shaft synchronous backward to revolve by gear mechanism
Turn, so that two slide valve eccentric rotor mechanisms be driven to realize synchronous backward movement, spindle rotation one week, two slide valves in parallel were inclined
Heart rotor mechanism is completed at the same time the suction and discharge of a cycle.
Slide valve eccentric rotor mechanism includes eccentric wheel, slide valve and slide valve guide rail, and slide valve includes that slip-ring part and being located at is slided
Plunger rod on the outside of ring portion, the slip-ring part are set on eccentric wheel, and plunger rod is threaded through in slide valve guide rail, are set in plunger rod
There is gas passage, eccentric wheel is fixed on corresponding driving shaft/driven shaft.
It is opened up in pump chamber there are two the cylindrical cavity that non-interference, axis is parallel to each other, two cylindrical cavities share a row
Gas channel, driving shaft and driven shaft, which respectively correspond, to be coaxially installed in cylindrical cavity, is also corresponded to there are two opening up on the pump housing mutually
Parallel rectangular enclosure, air inlet are communicated with two rectangular enclosures, slide valve guide rail be threaded through pump chamber rectangular cavity and cylindrical cavity it
Between, the plunger rod being threaded through in slide valve guide rail can be slided up and down and be swung in rectangular enclosure, rectangular enclosure and cylinder
Chamber is connected by the gas passage in plunger rod.
The shared exhaust passage of two cylindrical cavities is " people " font.
One end of the pump housing is equipped with top plate, and the other end is equipped with bottom plate, is provided with exhaust outlet, the external oil gas of exhaust outlet on bottom plate
Exhaust valve is integrated in separation equipment, exhaust outlet；Air inlet is provided on top plate, air inlet one end is connected to the rectangular cavity of the pump housing, separately
Working space is connected to outside one end.
Several groups filter screen is installed in the air inlet, is separated between filter screen with retaining ring.
The gear mechanism includes gear-box and is installed on the driving gear and driven gear being meshed in gear-box, gear
Case side is open and is cooperatively connected with bottom plate, and driving gear is installed on driving shaft, and driven gear is installed on driven shaft, gear-box
On offer pouring orifice.
The gear-box, bottom plate, offers cooling water inlet and outlet on top plate at the pump housing.
Balance hole is offered on the eccentric wheel of slide valve eccentric rotor mechanism.
Vacuum pump described in the utility model is designed using parallel structure, so that it and conventional tandem slide valve pump phase
Than more compact structure, volume reduces one third or more, and pumping speed, discharge capacity promote one times.
Detailed description of the invention
Fig. 1 be one embodiment according to the present utility model pump along Fig. 2 A-A plane cross-sectional view；
Fig. 2 is the cross-sectional view of the B-B plane along Fig. 1；
Fig. 3 is the cross-sectional view of the C-C plane view along Fig. 1；
In figure: motor 1, motor cabinet 2, gear-box 3, water outlet 4, gs-oil separator 5, exhaust outlet 6, pump chamber 7, top plate 8, mistake
Strainer 9, air inlet 10, end cap 11, driving shaft 12, active slide valve 13, active eccentric wheel 14, bottom plate 15, water inlet 16, driving tooth
Wheel 17, shaft coupling 18, driven shaft 19, driven gear 20, cooling water channel 21, from movable pulley 22, follower eccentric 23.
Specific embodiment
With reference to the accompanying drawings 1, attached drawing 2, attached parallel slide valve pump shown in Fig. 3 mainly by motor 1, motor cabinet 2, gear-box 3, go out
The mouth of a river 4, exhaust outlet 6, pump chamber 7, top plate 8, filter screen 9, air inlet 10, end cap 11, driving shaft 12, is actively slided gs-oil separator 5
It is valve 13, active eccentric wheel 14, bottom plate 15, water inlet 16, driving gear 17, shaft coupling 18, driven shaft 19, driven gear 20, cold
But water channel 21, from movable pulley 22, follower eccentric 23 form.
With reference to the accompanying drawings 1, the composite vacuum pump of one embodiment of the utility model is according to motor 1, motor cabinet 2, gear-box
3, the sequence of bottom plate 5, pump chamber 7, top plate 8 is sequentially connected by cylinder finger setting with countersunk head soket head cap screw.And faying face it
Between be equipped with sealing element.
Motor is connect with driving shaft by shaft coupling.
3 driving gears 17 drive driven gear 20 to rotate with reference to the accompanying drawings.
With reference to the accompanying drawings 1, be fixedly connected sequentially on driving shaft 18 driving gear 17, active eccentric wheel 14；Active eccentric wheel 14
It is arranged active slide valve 13 outside；The plunger rod of active slide valve 13 is threaded through in slide valve guide rail；Driving gear 17 is located in gear-box 3,
Slide valve assembly is located in pump chamber 7.
With reference to the accompanying drawings 1, inlet channel is opened up on top plate 8, and air inlet 9, other side connection pump chamber rectangle are installed in channel side
Chamber.One group or multiple groups filter screen 9 are housed, multiple groups filter screen is separated with retaining ring in inlet channel.Axis is equipped with bearing, bearing dress
In the round platform hole of bottom plate and top plate.
With reference to the accompanying drawings 1, exhaust passage is provided on bottom plate 15, and one end of the channel is equipped with exhaust outlet 6, the channel other end and pump chamber people
Font exhaust passage communicates.Exhaust valve is integrated in exhaust outlet 6, exhaust outlet 6 is connected with gs-oil separator 5.In gs-oil separator
Equipped with fuel tank, to collect and the intracavitary lubricating oil of make-up pump.
With reference to the accompanying drawings 2, pump chamber 7 open up there are two respectively with driving shaft 18, the coaxial circular cavity of driven shaft 19, pumped gas warp
Rectangular enclosure 15 on pump chamber 7 is entered by air inlet 9, then reaches slide valve pump inlet plenum via plunger rod cavity.Two slide valve pump chambers
Share a herringbone exhaust passage.
1, attached drawing 2, attached drawing 3 with reference to the accompanying drawings, be fixedly connected sequentially on driven shaft 19 driven gear 20, follower eccentric 22；
Driven slide valve 23 is arranged outside follower eccentric 22；It is threaded through in slide valve guide rail from the plunger rod of movable pulley 13；Driven gear 17
In gear-box 3, slide valve assembly is located in pump chamber 7.
1, attached drawing 2, attached drawing 3 with reference to the accompanying drawings offer cooling water channel 21 on gear-box 3, bottom plate 5.Gear-box 3 is equipped with
The water outlet 4 and water inlet 16 to connect with cooling water channel 21.Cooling water from water inlet 16 enter, flow through gear-box 3, bottom plate 5,
Pump chamber 7, top plate 8, flow out through water outlet 4.
With reference to the accompanying drawings 2, open up dynamic balancing hole on eccentric wheel, for reducing during pump operation noise and vibration, diagram
Only common one kind.
The utility model by setting have the pump chamber of interior accommodating space, gear-box and bottom plate equipped with exhaust outlet,
Top plate, motor cabinet and gs-oil separator equipped with air inlet.Along horizontally arranged two line shafts are pumped in the pump housing, one is
Driving shaft, another is driven shaft, and driving shaft drives driven shaft synchronous backward to rotate by gear.
Open up two two non-interference cylindrical cavities coaxial with driving shaft, driven shaft respectively on one pump chamber, two
The spool valve rotor for disposing synchronous backward to rotate in circular cavity respectively, meanwhile, pump housing opens up the rectangular enclosure of two connections.Slide valve
Guide rail is threaded through between the rectangular cavity of pump chamber and circular cavity.Be threaded through the plunger rod in slide valve guide rail can be in rectangular enclosure on
It lower slider and swings.
Air inlet is opened up on top plate, air inlet side is connected to working space, and the other side is connected to pump chamber rectangular cavity.In air inlet
Equipped with one group or multiple groups filter screen, multiple groups filter screen is separated with retaining ring.A pair is arranged on top plate can install the circle of bearing block
Platform hole.Axially bored line is concentric with driving shaft and driven shaft respectively.Bearing lubrication oil-in is opened up on top plate.
Gas outlet is opened up at the top of bottom plate, gas outlet can connect oil gas separation equipment.Exhaust valve is integrated in gas outlet.On bottom plate
A pair of round platform hole that can install bearing block is set.Axially bored line and driving shaft and driven shaft are concentric.Bearing lubrication is opened up on top plate
Oil-in.
Gear-box side is open, and side opens up a pair of sealing element and concentric with driving shaft and driven shaft respectively of can installing
Round platform hole.Open-position-side and bottom plate cooperate.Cooling water inlet and outlet are opened up on gear-box.Pouring orifice is opened up on gear-box.
Cooling water channel is offered on above-mentioned partition, pedestal, footstock, pump chamber and gear housing.
Above-mentioned all components are determined according to the sequence of motor cabinet, gear-box, bottom plate, pump chamber, top plate by straight pin
Position, is sequentially connected with countersunk head soket head cap screw.Motor is connect with driving shaft by shaft coupling.Motor is installed on motor cabinet.
Vacuum pump described in the utility model drives spindle rotation by motor direct connection, and driving shaft drives driving gear, slide valve
Eccentric wheel mechanism moves synchronously.Driving gear drive and engage driven shaft gear synchronous backward rotation, and then drive from
Slide valve eccentric wheel mechanism synchronous backward movement on moving axis.Shaft rotation is turned around, suction of the slide valve pump rotor to a cycle is completed
Exhaust.
The pumping part of vacuum pump described in the utility model is mainly slide valve eccentric wheel mechanism.Slide valve eccentric wheel mechanism includes
Eccentric wheel, slide valve and slide valve guide rail；The eccentric wheel is fixedly connected with main shaft；And dynamic balancing hole is offered on eccentric wheel；Institute
The slide valve stated includes slip-ring part and the link rod part on the outside of slip-ring part, and the slip-ring part is set on eccentric wheel, described
Link rod part is threaded through in slide valve guide rail；The link rod part has gas passage, and the rectangular cavity and circular cavity pass through the gas
Body channel is connected.
Claims (9)
1. a kind of parallel sliding valve vacuum pump of motor direct connection, including motor, gear mechanism and there is inlet channel and exhaust
The pump housing in channel, it is characterised in that: be equipped with pump chamber in the pump housing, two shafts being parallel to each other be equipped in pump chamber, based on one
Moving axis, another is driven shaft, is separately installed with slide valve eccentric rotor mechanism on two axis, two slide valve eccentric rotor mechanisms are mutual
Do not interfere, share inlet channel and exhaust passage, motor and active axis connection, driving shaft drives driven shaft same by gear mechanism
Step reversely rotates, so that two slide valve eccentric rotor mechanisms be driven to realize synchronous backward movement, spindle rotation one week, two simultaneously
Connection slide valve eccentric rotor mechanism is completed at the same time the suction and discharge of a cycle.
2. the parallel sliding valve vacuum pump of motor direct connection according to claim 1, it is characterised in that: the slide valve bias turns
Clamp mechanism includes eccentric wheel, slide valve and slide valve guide rail, and slide valve includes slip-ring part and the plunger rod on the outside of slip-ring part, described
Slip-ring part is set on eccentric wheel, and plunger rod is threaded through in slide valve guide rail, and gas passage is equipped in plunger rod, and eccentric wheel is fixed on
On corresponding driving shaft/driven shaft.
3. the parallel sliding valve vacuum pump of motor direct connection according to claim 2, it is characterised in that: offer two in pump chamber
The cylindrical cavity that a non-interference, axis is parallel to each other, two cylindrical cavities share an exhaust passage, driving shaft and driven shaft point
Dui Ying not be coaxially installed in cylindrical cavity, it is also corresponding on the pump housing to open up there are two the rectangular enclosure being parallel to each other, air inlet with
Two rectangular enclosures communicate, and slide valve guide rail is threaded through between the rectangular cavity of pump chamber and cylindrical cavity, the column being threaded through in slide valve guide rail
Stopper rod can be slided up and down and be swung in rectangular enclosure, and rectangular enclosure and cylindrical cavity pass through the gas passage in plunger rod
It is connected.
4. the parallel sliding valve vacuum pump of motor direct connection according to claim 3, it is characterised in that: two cylindrical cavities
Shared exhaust passage is " people " font.
5. the parallel sliding valve vacuum pump of motor direct connection according to claim 4, it is characterised in that: one end of the pump housing
Equipped with top plate, the other end is equipped with bottom plate, and exhaust outlet is provided on bottom plate, is integrated in the external oil gas separation equipment of exhaust outlet, exhaust outlet
There is exhaust valve；Air inlet is provided on top plate, air inlet one end is connected to the rectangular cavity of the pump housing, working space is connected to outside the other end.
6. the parallel sliding valve vacuum pump of motor direct connection according to claim 5, it is characterised in that: peace in the air inlet
Equipped with several groups filter screen, separated between filter screen with retaining ring.
7. the parallel sliding valve vacuum pump of motor direct connection according to claim 6, it is characterised in that: the gear mechanism packet
It includes gear-box and is installed on the driving gear and driven gear being meshed in gear-box, gear-box side is open and cooperates with bottom plate
Connection, driving gear are installed on driving shaft, and driven gear is installed on driven shaft, and pouring orifice is offered on gear-box.
8. the parallel sliding valve vacuum pump of motor direct connection according to claim 7, it is characterised in that: the gear-box, pump
Body, bottom plate offer cooling water inlet and outlet on top plate.
9. the parallel sliding valve vacuum pump of motor direct connection according to claim 8, it is characterised in that: slide valve eccentric rotor machine
Balance hole is offered on the eccentric wheel of structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821355174.XU CN208734546U (en) | 2018-08-22 | 2018-08-22 | A kind of parallel sliding valve vacuum pump of motor direct connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821355174.XU CN208734546U (en) | 2018-08-22 | 2018-08-22 | A kind of parallel sliding valve vacuum pump of motor direct connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734546U true CN208734546U (en) | 2019-04-12 |
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ID=66031991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821355174.XU Active CN208734546U (en) | 2018-08-22 | 2018-08-22 | A kind of parallel sliding valve vacuum pump of motor direct connection |
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| Country | Link |
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| CN (1) | CN208734546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026700A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | A kind of parallel sliding valve vacuum pump of motor direct connection |
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2018
- 2018-08-22 CN CN201821355174.XU patent/CN208734546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026700A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | A kind of parallel sliding valve vacuum pump of motor direct connection |
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