CN200996380Y - Sliding-valve vacuum pump with single-stage and multi-cylinders - Google Patents
Sliding-valve vacuum pump with single-stage and multi-cylinders Download PDFInfo
- Publication number
- CN200996380Y CN200996380Y CN 200720033268 CN200720033268U CN200996380Y CN 200996380 Y CN200996380 Y CN 200996380Y CN 200720033268 CN200720033268 CN 200720033268 CN 200720033268 U CN200720033268 U CN 200720033268U CN 200996380 Y CN200996380 Y CN 200996380Y
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- valve
- vacuum pump
- cylinder
- pump housing
- pump
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- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A single-level multi-cylinder sliding valve vacuum pump includes a pump body, a motor, an eccentric wheel, an eccentric shaft, a sliding valve, an exhaust valve and an oil tank; the upper part of pump body is provided with the oil tank and the motor is installed on the motor mounting bracket at upper part of the oil tank; the pump body is divided into a plurality of cylinders by a separating plate, which are installed with sliding valves, the eccentric wheel is installed in the sliding valve and the eccentric wheel shaft is installed in the eccentric wheel, a bearing is installed at both sides, and the bearing is installed in the bearing support at both sides of the pump body.
Description
Technical field
What the new single-stage twin-tub sliding valve vacuum pump of this practicality related to is a kind of single-stage multi-cylinder sliding valve style vacuum mechanical pump, is a kind of equipment that industries such as machinery, chemical industry, electronics, building materials, light industry, food, health obtain vacuum.
Background technique
Conventional machinery formula vacuum pump degree of vacuum is low at present, and power consumption is high, and required motor power is big, and hot-tempered sound pitch is easy to generate fault, needs often maintenance, and working life is short.In addition, sliding valve vacuum pump adopts single-stage single cylinder gliding style vacuum pump usually, has only a cylinder body is set, and a guiding valve is housed bleeds, and the speed of exhaust is little, and degree of vacuum is low, the power consumption height.
Summary of the invention
The utility model purpose is to provide a kind of single-stage multi-cylinder sliding valve vacuum pump at above-mentioned deficiency, in the pump housing, be provided with a plurality of cylinders chamber, a plurality of guiding valves are housed, can be alternately during work by a plurality of guiding valve pieces, the equipment, the container that needs are obtained vacuum are bled, the speed of exhaust is big, the degree of vacuum height, low in energy consumption.
Single-stage multi-cylinder sliding valve vacuum pump takes following scheme to realize: single-stage multi-cylinder sliding valve vacuum pump structure comprises the pump housing, motor, eccentric wheel, eccentric shaft, guiding valve, outlet valve, fuel tank, on the pump housing top fuel tank is housed, motor is contained on the fuel tank upper motor scaffold, the pump housing is separated into a plurality of cylinders chamber (pump chamber) by dividing plate, guiding valve is housed respectively in the multi-cylinder chamber, eccentric wheel is housed in the guiding valve, the eccentric shaft device is in eccentric wheel, bearing is equipped with at two ends, bearing is contained in the bearing spider of pump housing both sides, and pump housing two ends are sealed by pump cover.Guiding valve top is provided with slide valve lever, and slide valve lever is contained in the guiding valve guide rail, can slide along the guiding valve guide rail.The guiding valve track-type facilities is the gas-entered passageway place in the pump housing.The guiding valve guide rail is two semicircle guide rails.Be provided with inlet hole in the slide valve lever.The eccentric shaft end device has belt pulley, and belt pulley is positioned at casing one side outside, and motor is connected with belt pulley by belt.Discharge valve apparatus is provided with several outlet valves above the cylinder chamber, the quantity of outlet valve is by the discharge capacity setting.Exhaust structure comprises valve seat, valve bonnet, valve block, spring, air valve screw rod, gland.Device has pumping fluid in the slide valve, and cylinder chamber arranged outside has cooling jacket.
Working principle
The utility model single-stage multi-cylinder sliding valve vacuum pump is the multi-cylinder parallel structure, the pump housing is divided into a plurality of cylinders chamber by dividing plate with pump chamber, guiding valve, eccentric wheel, guiding valve guide rail are housed respectively in each cylinder chamber, eccentric shaft with a plurality of eccentric wheels and pump belt pulley string together, eccentric shaft is supported by the bearing spider in two pump covers, pump housing two ends are sealed by pump cover, and eccentric shaft stretches out the pump chamber end by oil sealing sealing.Motor passes through belt transmission, drive the rotation of eccentric shaft and eccentric wheel, be enclosed within the outer a plurality of guiding valves of eccentric wheel respectively along with the eccentric wheel rotation, cylindrical is pasting the pump inwall and is rolling, slide valve lever is done to slide and swing along the guiding valve guide rail, guiding valve is divided into air-inlet cavity and exhaust cavity with the cylinder chamber, the motion of guiding valve has produced, the volume-variation of exhaust cavity, gas are constantly sucked by suction port, enter air-inlet cavity by slide valve lever hollow, motion along with guiding valve, air-inlet cavity converts exhaust cavity to, and discharge chamber volume constantly dwindles, and pressure raises, until backing down outlet valve, gas is through deaerator, relief opening is discharged to outside the pump.
Single-stage multi-cylinder sliding valve vacuum pump characteristics:
1, vibration is little: single-stage multi-cylinder sliding valve vacuum pump adopts the multi-cylinder structure, so balance quality is good, vibrates little.
2, low in energy consumption: therefore more energy-conservation because single-stage multi-cylinder sliding valve vacuum pump project organization is reasonable, under the limiting vacuum operating mode, to move, power consumption is lower than similar single-stage vacuum pump about 30%, and operating cost is lower.
3, simple to operate: refuel, drain the oil conveniently, the adjustment of belt degree of tightness is simple, replacing is laborsaving.
4, easy to maintenance: as long as pull down tank cover, can clean oil sump, change exhaust valve plate, and needn't tear outlet pipe and fuel tank open, a people just can easily finish.
5, security of operation: single-stage multi-cylinder sliding valve vacuum pump adopts totally enclosed metal belt housing, and Security is higher.When pump does not use, the ponding in the water jacket can be drained fully, when pump does not use, can reduce water to the erosion of pump, avoid after the ice box termination of pumping water freezing bursting by freezing pump housing in the water jacket.
6, reliable operation, durable: each friction pair all has good lubricatedly in the cylinder chamber, and bearing and pump chamber separate, and pump shaft is equipped with axle sleeve at axle envelope place, so main shaft can not wear and tear, and can reverse end for end to continue use after the axle sleeve wearing and tearing.This pump adopts vertical structure, and belt tension and pump belt pulley gravity offset, and bearing load is little, and the life-span is longer.The main part reasonable in design of each of single-stage multi-cylinder sliding valve vacuum pump, Oiltank structure, be beneficial to Oil-gas Separation and cooling, and oil reserve is many, contained foreign material in the oil are had self-separation effect preferably, according to operating mode, single-stage multi-cylinder sliding valve vacuum pump can also dispose the band filter screen and stop up the filter screen that bypass is connected automatically, and oil circuit oil circulation display unit, so this series pump can be worked for a long time reliably, working life is longer, can work under more abominable operating mode.
Therefore the main part reasonable in design of each of single-stage multi-cylinder sliding valve vacuum pump can work for a long time reliably, and working life is quite long, and can work under more abominable operating mode.
7, volume is little, and is in light weight: single-stage multi-cylinder sliding valve vacuum pump design speed is moderate, and compact structure is reasonable, and it is the highest that the space availability ratio of pump chamber inside and outside all reaches, and profile is succinct, and volume is significantly less than like product.
8, single-stage multi-cylinder sliding valve vacuum pump is provided with a plurality of cylinders chamber, a plurality of guiding valves is housed in the pump housing, can be alternately during work by a plurality of guiding valves, and the equipment, the container that needs are obtained vacuum are bled, and the speed of exhaust is big, the degree of vacuum height.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing
Fig. 1 is a single-stage multi-cylinder sliding valve vacuum pump plan view
Fig. 2 is a single-stage multi-cylinder sliding valve vacuum pump right elevation
Fig. 3 is the pump housing sectional view of single-stage multi-cylinder sliding valve vacuum pump
Fig. 4 is the cylinder cavity configuration schematic representation of single-stage multi-cylinder sliding valve vacuum pump
Embodiment
With reference to accompanying drawing 1～4, single-stage multi-cylinder sliding valve vacuum pump structure comprises the pump housing 4, motor 1, eccentric wheel, eccentric shaft 12, guiding valve, outlet valve, fuel tank 3, on the pump housing 4 tops fuel tank 3 is housed, motor 1 is contained on the fuel tank upper motor scaffold 2, the pump housing 4 is separated into a plurality of cylinders chamber (pump chamber) by dividing plate, a plurality of cylinders are equipped with guiding valve respectively in the chamber, eccentric wheel is housed in the guiding valve, eccentric shaft 12 devices are in eccentric wheel, bearing is equipped with at two ends, bearing is contained in the bearing spider 6 of the pump housing 4 both sides, and the pump housing 4 two ends are by pump cover 5 sealings.The pump housing 4 can be separated into 2～5 cylinder chambeies by dividing plate.Be separated into cylinder chamber 11,16 as accompanying drawing 3 middle pump bodies 4 by dividing plate 15.Guiding valve 14 is housed in the cylinder chamber 11, eccentric wheel 13 is housed in the guiding valve 14, eccentric shaft 12 devices are equipped with guiding valve 17 in the cylinder chamber 16 in eccentric wheel 13, eccentric wheel 18 is housed in the guiding valve 17, and eccentric shaft 12 devices are in eccentric wheel 18.The pump housing is provided with suction port 9, and fuel tank 3 is provided with relief opening 10.Guiding valve 14 tops are provided with slide valve lever 22, and slide valve lever 22 is contained in the guiding valve guide rail 20, can slide along guiding valve guide rail 20.Guiding valve guide rail 20 device gas-entered passageway places in the pump housing 4.Guiding valve guide rail 20 is two semicircle guide rails.Be provided with inlet hole in the slide valve lever 22.Eccentric shaft 12 end devices have belt pulley 7, and belt pulley 7 is positioned at the pump housing 4 one side outsides, and motor 1 is connected with belt pulley 7 by belt.Outlet valve 21 devices are above cylinder chamber 11, and single-stage multi-cylinder sliding valve vacuum pump is provided with several outlet valves above the cylinder chamber, and the quantity of outlet valve is by the discharge capacity setting.Exhaust structure comprises valve seat, valve bonnet, valve block, spring, air valve screw rod, gland.Device has pumping fluid in the slide valve, and cylinder chamber 11,16 arranged outside have cooling jacket 19, and cooling jacket is connected with water-cooling tube 8.
Claims (5)
1, a kind of single-stage multi-cylinder sliding valve vacuum pump, comprise the pump housing, motor, eccentric wheel, eccentric shaft, guiding valve, outlet valve, fuel tank, on the pump housing top fuel tank is housed, motor is contained on the fuel tank upper motor scaffold, it is characterized in that the pump housing is separated into a plurality of cylinders chamber by dividing plate, is equipped with guiding valve respectively in a plurality of cylinders chamber, eccentric wheel is housed in the guiding valve, the eccentric shaft device is in eccentric wheel, and bearing is equipped with at two ends, and bearing is contained in the bearing spider of pump housing both sides.
2, single-stage multi-cylinder sliding valve vacuum pump according to claim 1 is characterized in that the pump housing is separated into 2～5 cylinder chambeies by dividing plate.
3, single-stage multi-cylinder sliding valve vacuum pump according to claim 1 is characterized in that guiding valve top is provided with slide valve lever, and slide valve lever is contained in the guiding valve guide rail, and the guiding valve guide rail is contained in gas-entered passageway place in the pump housing.
4, single-stage multi-cylinder sliding valve vacuum pump according to claim 1 is characterized in that being provided with several outlet valves above the cylinder chamber.
5, single-stage multi-cylinder sliding valve vacuum pump according to claim 1 is characterized in that in cylinder chamber arranged outside cooling jacket being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720033268 CN200996380Y (en) | 2007-01-11 | 2007-01-11 | Sliding-valve vacuum pump with single-stage and multi-cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720033268 CN200996380Y (en) | 2007-01-11 | 2007-01-11 | Sliding-valve vacuum pump with single-stage and multi-cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996380Y true CN200996380Y (en) | 2007-12-26 |
Family
ID=38994811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720033268 Expired - Fee Related CN200996380Y (en) | 2007-01-11 | 2007-01-11 | Sliding-valve vacuum pump with single-stage and multi-cylinders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996380Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603810A (en) * | 2013-10-22 | 2014-02-26 | 南京乐惠轻工装备制造有限公司 | Horizontal type label removing pump |
| CN109026700A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | A kind of parallel sliding valve vacuum pump of motor direct connection |
| CN109026707A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | The combination pump that claw pumps are combined with slide valve pump |
| CN109737062A (en) * | 2019-01-21 | 2019-05-10 | 中北大学 | A kind of four cylinder slide valve pump of parallel connection using automatic balancing rotor group |
-
2007
- 2007-01-11 CN CN 200720033268 patent/CN200996380Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603810A (en) * | 2013-10-22 | 2014-02-26 | 南京乐惠轻工装备制造有限公司 | Horizontal type label removing pump |
| CN109026700A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | A kind of parallel sliding valve vacuum pump of motor direct connection |
| CN109026707A (en) * | 2018-08-22 | 2018-12-18 | 中北大学 | The combination pump that claw pumps are combined with slide valve pump |
| CN109026707B (en) * | 2018-08-22 | 2024-05-14 | 中北大学 | Composite pump combining claw pump and slide valve pump |
| CN109737062A (en) * | 2019-01-21 | 2019-05-10 | 中北大学 | A kind of four cylinder slide valve pump of parallel connection using automatic balancing rotor group |
| CN109737062B (en) * | 2019-01-21 | 2024-04-16 | 中北大学 | Parallel four-cylinder slide valve pump adopting automatic balancing rotor set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20110111 |