CN206694254U - A kind of damping slide-valve vacuum pump - Google Patents
A kind of damping slide-valve vacuum pump Download PDFInfo
- Publication number
- CN206694254U CN206694254U CN201720526105.XU CN201720526105U CN206694254U CN 206694254 U CN206694254 U CN 206694254U CN 201720526105 U CN201720526105 U CN 201720526105U CN 206694254 U CN206694254 U CN 206694254U
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- China
- Prior art keywords
- installation chassis
- pump housing
- base
- center pillar
- valve
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- 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.)
- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model provides a kind of damping slide-valve vacuum pump.The utility model includes the pump housing, the connected installation chassis in the bottom of the pump housing, the lower section of installation chassis sets base, first elastic support is set between installation chassis and base, first elastic support includes center pillar, the top of center pillar is connected by cardan universal joint component with installation chassis, the bottom of center pillar is threaded bar, the bottom of threaded rod is socketed the first nut after running through base, first nut forms screw thread with threaded rod and is connected, first elastic support also includes some support springs, some support springs are evenly distributed on the periphery of center pillar, one end of support spring leans installation chassis, the other end leans base, multiple bolt assemblies are also set up between installation chassis and base；Second elastic support is set on installation chassis, and the second elastic support includes the riser positioned at pump housing both sides, some retaining springs set between riser and the pump housing, one end of retaining spring leans the outer wall of the pump housing, and the other end leans the inwall of riser.
Description
Technical field
The utility model belongs to pump technical field, is related to a kind of vacuum pump structure, particularly a kind of damping side valve type vacuum
Pump.
Background technology
Valve type oil sealing mechanical pump (abbreviation slide valve pump) is the same with sliding vane rotary pump, and a kind of variable displacement type gas transport pump, still
Sliding valve vacuum pump is compared with 2X sliding vane rotary vacuum pumps, durable to be higher by several times.Itself and scope and use condition and the basic phase of sliding vane rotary pump
Together.
Slide-valve vacuum pump is to extract one of general gas or the vacuum equipment containing a small amount of coercibility steam gas, is made
For vacuum metling, vacuum drying, vacuum impregnation and other vacuum operations.It can be used alone, and can also be used as other high
The fore pump of vavuum pump uses, but is used as delivery pump without using in being evacuated to another container by a container；It is widely used in space flight, boat
The industries such as sky, atom, oil, chemical industry, pharmacy, electrician, ceramics, smelting, new material, vacuum heat, vacuum coating.
For slide valve pump because of its design feature, Capacity Ratio sliding vane rotary pump is much bigger, is commonly used on huge vacuum installations.Slide valve pump has list
Level and two kinds of forms of twin-stage.The gyrating mass of slide valve pump has compared with large eccentricity, such as without good mass balance, can produce larger shake
It is dynamic.But the movement locus of pump rotation barycenter is complex-shaped closed curve, is difficult to realize to the completely flat of slide valve pump inertia force
Weighing apparatus.There is problems with existing slide valve pump, because of the unstability of pumping airflow turbulence, cause continuation, irregular obstruction
Vibrations, the stability of the whole pump housing can be impacted after permanent, or even infringement pump parts.
Utility model content
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of by setting elasticity slow
Structure is rushed, the damaging brought to absorb and eliminate air-flow turbulence shakes, it is ensured that operates stable damping slide-valve vacuum pump.
The purpose of this utility model can be realized by following technical proposal：A kind of damping slide-valve vacuum pump, including pump
Body, the pump housing have pumping chamber, and the pumping chamber connects air inlet pipe, and the junction setting of the pumping chamber and air inlet pipe is led
Rail, the slide valve lever being engaged with guide rail is provided with the guide rail, the intersection of the guide rail and the pump housing is provided with exhaust outlet, institute
State and air bleeding valve be set on exhaust outlet, the slide valve lever stretches into and eccentric wheel is provided with the inner of pumping chamber, the eccentric wheel it is inclined
The heart sets drive shaft on position；The connected installation chassis in the bottom of the pump housing, the lower section of the installation chassis sets base, described
First elastic support is set between installation chassis and base, and first elastic support includes center pillar, and the top of the center pillar leads to
Cross cardan universal joint component to be connected with the installation chassis, the bottom of the center pillar is threaded bar, and the bottom of the threaded rod is run through
The first nut is socketed after the base, first nut forms screw thread with threaded rod and is connected, first elastic support
Also include some support springs, some support springs are evenly distributed on the periphery of the center pillar, the support spring
One end lean the installation chassis, the other end leans the base, multiple use is also set up between the installation chassis and base
In the bolt assembly of regulation spacing；Second elastic support is set on the installation chassis, and second elastic support includes being located at
The riser of the pump housing both sides, some retaining springs, one end of the retaining spring are set between the riser and the pump housing
The outer wall of the pump housing is leaned, the other end leans the inwall of the riser.
The function mode of this damping slide-valve vacuum pump is vacuum pump startup, is rotated, made by drive shaft band movable eccentric wheel
Slide valve lever is slided up and down and swung in guide rail.Pumping chamber is separated into two chambers by eccentric wheel.When drive shaft is solid by one
When determining direction rotation, the first chamber volume increase, pressure reduces, and opening of the gas through the first chamber of slide valve lever side enters the first chamber,
It is now in breathing process.When guiding valve is in opposite side top position, the first chamber volume reaches maximum, now air inlet and first
Chamber completely cuts off, and completes breathing process；Second chamber volume reduces, compressed gas.When the second intracavity gas pressure reaches pressure at expulsion,
Push the air bleeding valve of oil sealing open, start to be vented.When eccentric wheel is in opposite side top position, exhaust ends.
Air-flow turbulization resistance in flow process, resistance vibrations are in turn resulted in, the pump housing is realized by cardan universal joint component
The circumferential free degree, realized by some support springs to elastic anchorage force of the pump housing in vertical lower section, to slow down or absorb gas
Stream vibrations caused by vertical direction, the spacing between installation chassis and base is regulated and controled by bolt assembly, to regulate and control support bullet
The elastic force size of spring, to tackle different degrees of vertical vibrations dynamics.Realized by some retaining springs to the pump housing in level
The elastic anchorage force in direction, vibrations caused by slow down or absorb air-flow in the horizontal direction, effectively avoid the pump housing that left and right occurs and shake
It is dynamic.
In above-mentioned damping slide-valve vacuum pump, some first mounting holes, the installation chassis are opened on the base
On open some second mounting holes, the bolt assembly includes shank of bolt and the second nut, and the shank of bolt is from the bottom to top successively
Formed and be threadedly coupled with the second nut after the first mounting hole, the second mounting hole.Shank of bolt is in the first mounting hole, the second installation
It can freely be worn in hole, its position on shank of bolt, controllable installation chassis and base are adjusted by screwing the second nut
Between maximum spacing, the maximum spacing determines the compression degree of support spring, with the support for controlling support spring to be provided
The size of elastic force.
In above-mentioned damping slide-valve vacuum pump, the cardan universal joint component includes multi-directional ball, the bottom of the installation chassis
Upper orifice is set on face, and the upper orifice has hole directed downwardly, and the top clamping of the multi-directional ball enters shape in the upper orifice
Connected into rolling；Lower nozzle is set on the top of the center pillar, and the lower nozzle has a hole upward, under the multi-directional ball
Portion's clamping, which enters to be formed in the lower nozzle, rolls connection.By the setting of cardan universal joint component, the whole pump housing can be achieved in the plane
The free degree scope of four square degrees, capable adjustment activity is buffered into so as to reach the elasticity in vibrations.
In above-mentioned damping slide-valve vacuum pump, several the 3rd mounting holes, the 3rd peace are opened on the base
Dress wears fixing screws in hole.
In above-mentioned damping slide-valve vacuum pump, the periphery of the eccentric wheel is arranged guiding valve ring, the guiding valve ring it is outer
Anti-corrosion layer is coated with surface.
Compared with prior art, this damping slide-valve vacuum pump is operated by setting elastic buffer structure for side valve type
Feature, spring damping being provided which in vertical direction and horizontal direction, the damaging brought with absorbing and eliminating air-flow turbulence shakes,
Avoid vertical tremor and swing, it is ensured that operating is stable, ensures vacuum suction effect, extends pump housing service life.
Brief description of the drawings
Fig. 1 is the structural representation of this damping slide-valve vacuum pump.
In figure, 1, the pump housing；2nd, guide rail；3rd, slide valve lever；4th, eccentric wheel；5th, drive shaft；6th, installation chassis；7th, riser；8th, it is fixed
Position spring；9th, multi-directional ball；10th, center pillar；11st, the first nut；12nd, support spring；13rd, shank of bolt；14th, the second nut；15th, bottom
Seat.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this damping slide-valve vacuum pump, including the pump housing 1, the pump housing 1 have pumping chamber, pumping chamber connection air inlet
The junction of pipe, pumping chamber and air inlet pipe sets guide rail 2, and the slide valve lever 3 being engaged with guide rail 2, guide rail 2 are provided with guide rail 2
The intersection of the pump housing 1 is provided with exhaust outlet, air bleeding valve is set on exhaust outlet, slide valve lever 3 is stretched on the inner of pumping chamber and set
There is eccentric wheel 4, drive shaft 5 is set on the eccentric position of eccentric wheel 4；The connected installation chassis 6 in the bottom of the pump housing 1, installation chassis 6
Lower section sets base 15, and the first elastic support is set between installation chassis 6 and base 15, and the first elastic support includes center pillar 10,
The top of center pillar 10 is connected by cardan universal joint component with installation chassis 6, and the bottom of center pillar 10 is threaded bar, the bottom of threaded rod
The first nut 11 is socketed after base 15, the first nut 11 forms screw thread with threaded rod and is connected, and the first elastic support is also
Including some support springs 12, some support springs 12 are evenly distributed on the periphery of center pillar 10, one end of support spring 12
Installation chassis 6 is leaned, the other end leans base 15, is also set up between installation chassis 6 and base 15 multiple for adjusting spacing
Bolt assembly；Second elastic support is set on installation chassis 6, and the second elastic support includes the riser 7 positioned at the both sides of the pump housing 1, erects
Some retaining springs 8 are set between plate 7 and the pump housing 1, and one end of retaining spring 8 leans the outer wall of the pump housing 1, and the other end leans riser
7 inwall.
The function mode of this damping slide-valve vacuum pump is vacuum pump startup, is rotated by drive shaft band movable eccentric wheel 4,
Slide valve lever is set to slide up and down and swing in guide rail 2.Pumping chamber is separated into two chambers by eccentric wheel 4.When drive shaft 5 is pressed
When one fixed-direction rotates, the first chamber volume increase, pressure reduces, and opening of the gas through the chamber side of slide valve lever 3 first enters the
One chamber, is now in breathing process.When guiding valve is in opposite side top position, the first chamber volume reaches maximum, now air inlet
Completely cut off with the first chamber, complete breathing process；Second chamber volume reduces, compressed gas.When the second intracavity gas pressure reaches exhaust
During pressure, the air bleeding valve of oil sealing is pushed open, start to be vented.When eccentric wheel 4 is in opposite side top position, exhaust ends.
Air-flow turbulization resistance in flow process, resistance vibrations are in turn resulted in, the pump housing 1 is realized by cardan universal joint component
The circumferential free degree, realized by some support springs 12 to elastic anchorage force of the pump housing 1 in vertical lower section, to slow down or absorb
Air-flow shakes caused by vertical direction, regulates and controls the spacing between installation chassis 6 and base 15 by bolt assembly, to regulate and control branch
The elastic force size of spring 12 is supportted, to tackle different degrees of vertical vibrations dynamics.Realized by some retaining springs 8 to the pump housing
1 elastic anchorage force in the horizontal direction, vibrations caused by slow down or absorb air-flow in the horizontal direction, effectively avoids the pump housing 1 from sending out
Raw double swerve.
Some first mounting holes are opened on base 15, some second mounting holes are opened on installation chassis 6, bolt assembly includes
The nut 14 of shank of bolt 13 and second, shank of bolt 13 sequentially pass through from the bottom to top after the first mounting hole, the second mounting hole with the second spiral shell
Mother 14 forms threaded connection.Shank of bolt 13 can freely be worn in the first mounting hole, the second mounting hole, by screwing the second spiral shell
Mother 14 adjusts its position on shank of bolt 13, the maximum spacing between controllable installation chassis 6 and base 15, the maximum spacing
The compression degree of support spring 12 is determined, with the size for supporting elastic force for controlling support spring 12 to be provided.
Cardan universal joint component includes multi-directional ball 9, sets upper orifice on the bottom surface of installation chassis 6, upper orifice has hole directed downwardly
Mouthful, the top clamping of multi-directional ball 9, which enters to be formed in upper orifice, rolls connection；Lower nozzle, lower nozzle tool are set on the top of center pillar 10
There is hole upward, the bottom clamping of multi-directional ball 9, which enters to be formed in lower nozzle, rolls connection., can by the setting of cardan universal joint component
The free degree scope of the whole pump housing 1 four square degrees in the plane is realized, capable adjustment is buffered into so as to reach the elasticity in vibrations
Activity.
Several the 3rd mounting holes are opened on base 15, fixing screws are worn in the 3rd mounting hole.
The periphery of eccentric wheel 4 is arranged guiding valve ring, and anti-corrosion layer is coated with the outer surface of guiding valve ring.
This damping slide-valve vacuum pump is by setting elastic buffer structure, for side valve type operational characteristics, in vertical direction
Be provided which spring damping with horizontal direction, shaken with absorbing and eliminating the damaging that air-flow turbulence brings, avoid vertical tremor and
Swing, it is ensured that operating is stable, ensures vacuum suction effect, extends the service life of the pump housing 1.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although the pump housing 1 has more been used herein；Guide rail 2；Slide valve lever 3；Eccentric wheel 4；Drive shaft 5；Installation chassis 6；It is perpendicular
Plate 7；Retaining spring 8；Multi-directional ball 9；Center pillar 10；First nut 11；Support spring 12；Shank of bolt 13；Second nut 14；Base 15
Deng term, but it is not precluded from the possibility using other terms.Conciliate using these terms just for the sake of more easily description
Release essence of the present utility model；Being construed as any additional limitation is disagreed with the utility model spirit
's.
Claims (5)
1. a kind of damping slide-valve vacuum pump, including the pump housing, the pump housing has pumping chamber, and the pumping chamber connects air inlet pipe,
The junction of the pumping chamber and air inlet pipe sets guide rail, and the slide valve lever being engaged with guide rail is provided with the guide rail, described
The intersection of guide rail and the pump housing is provided with exhaust outlet, and air bleeding valve is set on the exhaust outlet, and the slide valve lever stretches into pumping chamber
Eccentric wheel is provided with the inner, drive shaft is set on the eccentric position of the eccentric wheel；Characterized in that, the bottom of the pump housing
Be connected installation chassis, and the lower section of the installation chassis sets base, and the first elasticity branch is set between the installation chassis and base
Frame, first elastic support include center pillar, and the top of the center pillar is connected by cardan universal joint component with the installation chassis, institute
The bottom for stating center pillar is threaded bar, and the bottom of the threaded rod is socketed the first nut, first spiral shell after the base
Female to form screw thread mating connection with threaded rod, first elastic support also includes some support springs, some support bullets
Spring is evenly distributed on the periphery of the center pillar, and one end of the support spring leans the installation chassis, and the other end leans
The base, multiple bolt assemblies for being used to adjust spacing are also set up between the installation chassis and base；The installation chassis
It is upper setting the second elastic support, second elastic support include positioned at the pump housing both sides riser, the riser with it is described
Some retaining springs are set between the pump housing, and one end of the retaining spring leans the outer wall of the pump housing, and the other end leans described
The inwall of riser.
2. damping slide-valve vacuum pump according to claim 1, it is characterised in that some first peaces are opened on the base
Hole is filled, opens some second mounting holes on the installation chassis, the bolt assembly includes shank of bolt and the second nut, the spiral shell
Tightening latch is threadedly coupled after sequentially passing through the first mounting hole, the second mounting hole from the bottom to top with the formation of the second nut.
3. damping slide-valve vacuum pump according to claim 1, it is characterised in that the cardan universal joint component includes universal
Ball, upper orifice is set on the bottom surface of the installation chassis, the upper orifice has hole directed downwardly, the top card of the multi-directional ball
Access to be formed in the upper orifice and roll connection；Lower nozzle is set on the top of the center pillar, and the lower nozzle has upward
Hole, the bottom clamping of the multi-directional ball, which enters to be formed in the lower nozzle, rolls connection.
4. damping slide-valve vacuum pump according to claim 1, it is characterised in that opened on the base several the 3rd
Mounting hole, fixing screws are worn in the 3rd mounting hole.
5. damping slide-valve vacuum pump according to claim 1, it is characterised in that the periphery of the eccentric wheel is arranged guiding valve
Ring, anti-corrosion layer is coated with the outer surface of the guiding valve ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526105.XU CN206694254U (en) | 2017-05-12 | 2017-05-12 | A kind of damping slide-valve vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526105.XU CN206694254U (en) | 2017-05-12 | 2017-05-12 | A kind of damping slide-valve vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694254U true CN206694254U (en) | 2017-12-01 |
Family
ID=60449822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720526105.XU Expired - Fee Related CN206694254U (en) | 2017-05-12 | 2017-05-12 | A kind of damping slide-valve vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409554A (en) * | 2019-06-15 | 2019-11-05 | 盐城恒益绿化有限公司 | A kind of landscape engineering water-saving device |
| CN111022296A (en) * | 2019-12-19 | 2020-04-17 | 福州市金政捷制冷设备有限公司 | Inhale shake type compressor |
-
2017
- 2017-05-12 CN CN201720526105.XU patent/CN206694254U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409554A (en) * | 2019-06-15 | 2019-11-05 | 盐城恒益绿化有限公司 | A kind of landscape engineering water-saving device |
| CN111022296A (en) * | 2019-12-19 | 2020-04-17 | 福州市金政捷制冷设备有限公司 | Inhale shake type compressor |
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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: 20171201 Termination date: 20180512 |