CN204692118U - Anticorrosive screw arbor vacuum pump - Google Patents
Anticorrosive screw arbor vacuum pump Download PDFInfo
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- CN204692118U CN204692118U CN201520328906.6U CN201520328906U CN204692118U CN 204692118 U CN204692118 U CN 204692118U CN 201520328906 U CN201520328906 U CN 201520328906U CN 204692118 U CN204692118 U CN 204692118U
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- pump housing
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Abstract
The utility model discloses a kind of Anticorrosive screw arbor vacuum pump, comprise the pump housing, end cap, side cover, motor, gear assembly, coupling, rotating shaft, rotor, bearing unit and gas seal assembly; One end of side cover is connected with the pump housing, and the other end is connected with end cap; Motor is fixed on end cap, and rotating shaft is connected with coupling respectively with gear assembly, and coupling is connected with motor; Rotor to be located on the pump housing and to link with rotating shaft; Bearing unit is located at the end of rotating shaft and rotor; Bearing unit comprises screw-casing, sealing axle sleeve, bearing, bearing gland and bearing support; Screw-casing is located at the end of rotating shaft and rotor; Sealing axle sleeve and bearing to be all located in bearing support and with rotating shaft and rotor engagement; Bearing support is located in side cover, bearing gland to be located on end cap and and bearing fit; Gas seal assembly comprises sealed pipe and sealed valve, and sealed valve is located on sealed pipe, and sealed pipe is communicated with the gas seal chamber in side cover.Advantage is: the utility model good corrosion resistance and increasing the service life.
Description
Technical field
The utility model belongs to vacuum pump technology field, especially relates to a kind of Anticorrosive screw arbor vacuum pump.
Background technique
The air of vacuum pump mainly in a kind of evacuation container and make it keep a kind of equipment of vacuum state, it is widely used in medication chemistry industry.Existing vacuum pump is when to object extracting air in field of medicine and chemical technology, often cause Lubricants emulsification due to the seepage of medium, thus cause the transmission part such as bearing, gear assembly to lose efficacy, vacuum pump cannot be used, make like this to accomplish this comparatively greatly, and greatly reduce the working life of vacuum pump; Be exactly that existing vacuum pump adopts mechanical oil seal structure mostly in addition, this structure is easy wearout parts at work, and long-time use can reduce the working life of parts; Therefore be necessary to be improved.
Summary of the invention
The purpose of this utility model is the deficiency existed for above-mentioned prior art, provides a kind of Anticorrosive screw arbor vacuum pump, and it has, and structure is simple, good corrosion resistance and the feature that can effectively increase the service life.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of Anticorrosive screw arbor vacuum pump, comprises the pump housing, end cap, side cover, motor, gear assembly, coupling, rotating shaft and rotor; One end of described side cover is fixedly connected with the pump housing, and the other end is fixedly connected with end cap; Described motor is fixedly installed on end cap, and described rotating shaft and gear assembly are fixedly installed with coupling respectively, and described coupling is fixedly connected with the clutch end of motor; Described rotor is arranged on the inside of the pump housing and itself and rotating shaft link; It also comprises bearing unit and gas seal assembly, and described bearing unit is arranged on the end of rotating shaft and rotor; Described bearing unit comprises screw-casing, sealing axle sleeve, bearing, bearing gland and bearing support; Described screw-casing is arranged on the end of rotating shaft and rotor and is communicated with the hollow chamber of the pump housing; Described sealing axle sleeve and bearing to be all arranged in bearing support and with rotating shaft and rotor collaboration; Described bearing support is arranged on the inside of side cover, described bearing gland to be arranged on end cap and and bearing fit; Described gas seal assembly comprises sealed pipe and sealed valve, and described sealed valve is arranged on sealed pipe, and described sealed pipe is communicated with the gas seal chamber in side cover and is provided with sealing gas in it.
The described pump housing, rotor and side cover adopt stainless steel or titanium material to make.
Described gear assembly and coupling are fabricated structure.
Oil deflector is provided with between described sealing axle sleeve and bearing.
The suction port of the described pump housing is provided with filter screen.
Described side cover is provided with relief opening.
After adopting said structure, the utility model is compared to the prior art advantageously: structure of the present utility model is simple, sealing gas can be compressed in the hollow chamber of the pump housing by the screw-casing on bearing unit, counteract the alternately change of hollow chamber's internal pressure, allow gas and liquid unidirectionally enter in hollow chamber, effectively prevent these media from entering into the bearing bore indoor of cover internal and causing the transmission part such as bearing and gear assembly to lose efficacy; Gas seal assembly effectively can reduce the wearing and tearing of parts, makes longer service life; The pump housing of the present utility model, rotor and side cover adopt stainless steel or titanium material to make, and compare that its corrosion resistance of existing cast iron quality is better, the longer service life of parts.
Accompanying drawing explanation
Fig. 1 is plane structure schematic diagram of the present utility model.
Fig. 2 is the plane structure schematic diagram of the utility model opposite side.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model, further illustrates below in conjunction with drawings and Examples to the utility model.
Embodiment, is shown in shown in Fig. 1 and Fig. 2: a kind of Anticorrosive screw arbor vacuum pump, comprises the pump housing 10, end cap 20, side cover 30, motor 40, gear assembly 50, coupling 60, rotating shaft 70, rotor 71, bearing unit and gas seal assembly.The pump housing 10, rotor 71 and side cover 30 adopt stainless steel or titanium material to make, and it has good anticorrosion ability to compare original employing cast iron quality, allow to be extended the working life of parts.The pump housing 10 is bottomless hollow structure, and its inside has hollow chamber 11, offers tank 13 in the inside of its outer side surface, can hold cooling water medium, have good cooling effect during to ensure work in tank 13.Side cover 30 is between the pump housing 10 and end cap 20, and its one end is fixedly connected with the pump housing 10, and the other end is fixedly connected with end cap 20; Offer tank 13 equally in the inside of side cover 30, cooling water medium can be held in tank 13 equally to play good cooling-down effect; Also offer relief opening 32 in the side of side cover 30, relief opening 32 can discharge inner air to ensure good sealing state.Motor 40 is fixedly installed on the end cap 20 of side, and coupling 60 is fixedly connected with the clutch end of motor 40; It is fixedly installed with coupling 60 respectively for fabricated structure for rotating shaft 70 and gear assembly 50, can reach rotating shaft 70 like this and gear assembly 50 works together when motor 40 works.Rotor 71 is arranged in the hollow chamber 11 of the pump housing 10, and its one end and rotating shaft 70 link, the other end and bearing unit collaboration.Above-mentioned bearing unit is separately positioned on the end of rotating shaft 70 and rotor 71, and it comprises screw-casing 80, sealing axle sleeve 81, bearing 82, bearing gland 83 and bearing support 84; Screw-casing 80 is arranged on the end of rotating shaft 70 and rotor 71 and is communicated with the hollow chamber 11 of the pump housing 10, sealing gas can be compressed in the hollow chamber 11 of the pump housing 10 by screw-casing 80, counteract the alternately change of hollow chamber 11 internal pressure, gas and liquid can only unidirectionally be entered in hollow chamber 11, in the bearing chamber 21 effectively preventing these media from entering into end cap 20 inside, causes the transmission part such as bearing 82 and gear assembly 50 to lose efficacy; Sealing axle sleeve 81 and bearing 82 to be all arranged in bearing support 83 and with rotating shaft 70 and rotor 71 collaboration, it can play good sealing effect; Bearing support 83 is arranged on the inside of side cover 30, bearing gland 83 to be arranged on end cap 20 and with bearing 82 collaboration.In order to prevent the inflow of lubricant oil, between sealing axle sleeve 81 and bearing 82, be provided with oil deflector 85.Above-mentioned gas seal assembly comprises sealed pipe 90 and sealed valve 91, and described sealed valve 91 is arranged on sealed pipe 90, and described sealed pipe 90 is communicated with the gas seal chamber 31 in side cover 30 and is provided with sealing gas in it; This structure compares original mechanical oil seal structure, and it effectively can reduce the wearing and tearing of parts, increases the service life.In order to filter the impurity in ambient air, the suction port of the pump housing 10 is provided with filter screen 12.
Claims (6)
1. an Anticorrosive screw arbor vacuum pump, comprises the pump housing (10), end cap (20), side cover (30), motor (40), gear assembly (50), coupling (60), rotating shaft (70) and rotor (71); One end of described side cover (30) is fixedly connected with the pump housing (10), and the other end is fixedly connected with end cap (20); Described motor (40) is fixedly installed on end cap (20), described rotating shaft (70) and gear assembly (50) are fixedly installed with coupling (60) respectively, and described coupling (60) is fixedly connected with the clutch end of motor (40); Described rotor (71) is arranged on the inside of the pump housing (10) and itself and rotating shaft (70) link; It is characterized in that: also comprise bearing unit and gas seal assembly, described bearing unit is arranged on the end of rotating shaft (70) and rotor (71); Described bearing unit comprises screw-casing (80), sealing axle sleeve (81), bearing (82), bearing gland (83) and bearing support (84); Described screw-casing (80) is arranged on the end of rotating shaft (70) and rotor (71) and is communicated with the hollow chamber (11) of the pump housing (10); Described sealing axle sleeve (81) and bearing (82) to be all arranged in bearing support (83) and with rotating shaft (70) and rotor (71) collaboration; Described bearing support (83) is arranged on the inside of side cover (30), and described bearing gland (83) is arranged on end cap (20) and goes up and coordinate with bearing (82); Described gas seal assembly comprises sealed pipe (90) and sealed valve (91), described sealed valve (91) is arranged on sealed pipe (90), and described sealed pipe (90) is communicated with the gas seal chamber (31) in side cover (30) and is provided with sealing gas in it.
2. Anticorrosive screw arbor vacuum pump according to claim 1, is characterized in that: the described pump housing (10), rotor (71) and side cover (30) adopt stainless steel or titanium material to make.
3. Anticorrosive screw arbor vacuum pump according to claim 1 and 2, is characterized in that: described gear assembly (50) and coupling (60) are fabricated structure.
4. Anticorrosive screw arbor vacuum pump according to claim 1 and 2, is characterized in that: be provided with oil deflector (85) between described sealing axle sleeve (81) and bearing (82).
5. Anticorrosive screw arbor vacuum pump according to claim 4, is characterized in that: the suction port of the described pump housing (10) is provided with filter screen (12).
6. Anticorrosive screw arbor vacuum pump according to claim 5, is characterized in that: described side cover (30) is provided with relief opening (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328906.6U CN204692118U (en) | 2015-05-21 | 2015-05-21 | Anticorrosive screw arbor vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328906.6U CN204692118U (en) | 2015-05-21 | 2015-05-21 | Anticorrosive screw arbor vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692118U true CN204692118U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328906.6U Active CN204692118U (en) | 2015-05-21 | 2015-05-21 | Anticorrosive screw arbor vacuum pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204692118U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382223A (en) * | 2016-12-01 | 2017-02-08 | 浙江创为真空设备有限公司 | Double screw vacuum pump |
| CN109404277A (en) * | 2018-11-30 | 2019-03-01 | 江阴爱尔姆真空设备有限公司 | A kind of Anticorrosive screw arbor vacuum pump |
| CN112207020A (en) * | 2020-09-08 | 2021-01-12 | 广东顺德百涂通智能科技有限公司 | Pressure-bearing type washing screening machine |
| CN112833007A (en) * | 2020-12-31 | 2021-05-25 | 浙江创为真空设备股份有限公司 | Screw pump comprehensive sealing structure |
-
2015
- 2015-05-21 CN CN201520328906.6U patent/CN204692118U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382223A (en) * | 2016-12-01 | 2017-02-08 | 浙江创为真空设备有限公司 | Double screw vacuum pump |
| CN109404277A (en) * | 2018-11-30 | 2019-03-01 | 江阴爱尔姆真空设备有限公司 | A kind of Anticorrosive screw arbor vacuum pump |
| CN112207020A (en) * | 2020-09-08 | 2021-01-12 | 广东顺德百涂通智能科技有限公司 | Pressure-bearing type washing screening machine |
| CN112833007A (en) * | 2020-12-31 | 2021-05-25 | 浙江创为真空设备股份有限公司 | Screw pump comprehensive sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 6 Taizhou 317000 Zhejiang 317000 Toumen port Second Avenue Binhai New District Management Committee Patentee after: Zhejiang created as a vacuum equipment Limited by Share Ltd Address before: No. 6 Taizhou 317000 Zhejiang 317000 Toumen port Second Avenue Binhai New District Management Committee Patentee before: ZHEJIANG CHUANGWEI VACUUM EQUIPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |