CN203835723U - Radial length fixed integral rotary piece type vacuum pump cavity structure - Google Patents
Radial length fixed integral rotary piece type vacuum pump cavity structure Download PDFInfo
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- CN203835723U CN203835723U CN201420168384.3U CN201420168384U CN203835723U CN 203835723 U CN203835723 U CN 203835723U CN 201420168384 U CN201420168384 U CN 201420168384U CN 203835723 U CN203835723 U CN 203835723U
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- 230000007704 transition Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000004308 accommodation Effects 0.000 abstract 5
- 230000000630 rising effect Effects 0.000 abstract 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 230000036760 body temperature Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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Abstract
The utility model discloses a radial length fixed integral rotary piece type vacuum pump cavity structure. The radial length fixed integral rotary piece type vacuum pump cavity structure comprises a pump body and an eccentric rotor which is connected inside a pump body accommodation chamber in a rotary mode; the rotor and the internal wall of the accommodation chamber are tangent; positions on bilateral sides of the pump body, which are close to the rotor and the accommodation chamber tangent line, are correspondingly provided with an air inlet and an air outlet; the rotor is provided with a radial through groove; an integral rotary piece is radially connected inside the radial through groove in a sliding mode; two ends of the rotary piece radially extend to the exterior of the rotor and seal against the internal wall side of the accommodation chamber; two ends of the rotary piece and the internal wall side of the accommodation chamber are in sliding connection. The radial length fixed integral rotary piece type vacuum pump cavity structure has the advantages of being simple in structure, allowing changing of stress states of a rotary piece, being small in operation noise, low in pump body temperature rising, beneficial to high speed operation of a vacuum pump and solving the technical problems that the direct connection rotary piece vacuum pump in the prior art is large in noise and high in temperature rising and accordingly influences the vacuum pump performances when being serious.
Description
Technical field
The utility model relates to a kind of rotary-vane vaccum pump, relates in particular to a kind ofly to have improved the stress of blade in rotation and the compound motion that reciprocatingly slides, thereby is more conducive to the whole rotary-vane vaccum pump pump chamber structure of the radially fixed length running up of vacuum pump.
Background technique
Vacuum pump is to utilize the methods such as machinery, physics, chemistry or physical chemistry in a certain enclosed space, to produce, improve and maintain the device of vacuum, it is widely used in the fields such as medication chemistry, electronic technology, vacuum drying, refrigeration, generally be divided into reciprocating vacuum pump, rotary-vane vaccum pump and molecular pump etc., rotary-vane vaccum pump is wherein the widest as backing pump application area, and rotary-vane vaccum pump just gradually by belt type to straight connection type structural development, comprising the rotary-vane vaccum pump of larger pumping speed.The Main Differences of straight connection type sliding vane rotary pump and belt type sliding vane rotary pump is the difference of rotating speed, and the rotating speed of straight connection type sliding vane rotary pump is generally the twice left and right of belt type sliding vane rotary pump rotating speed.The benefit of straight connection type sliding vane rotary pump is that vacuum pump structure is compact, and lightweight, floor space is little, convenient carrying, but the straight connection type sliding vane rotary pump technical problems such as also ubiquity noise is large, temperature rise height.
Summary of the invention
The utility model has mainly been to provide a kind of simple in structure, can improve the stress of blade, operation noise is little, pump housing temperature rise is low, thereby be more conducive to the whole rotary-vane vaccum pump pump chamber structure of the radially fixed length running up of vacuum pump, solved the straight connection type rotary-vane vaccum pump ubiquity noise existing in prior art large, temperature rise, affects the technical problem of vacuum pump performance etc. when serious.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of whole rotary-vane vaccum pump pump chamber structure of radially fixed length, the rotor in pump housing receiving cavity that is rotatably connected on that comprises the pump housing and bias, the inwall of rotor and receiving cavity is tangent, and at corresponding suction port and the relief opening of being provided with in pump housing both sides with receiving cavity tangent line near rotor, on described rotor, be provided with radially groove, integrated type blade is radially being slidably connected in groove radially, the two ends of blade radially extend to respectively the outer also envelope of rotor and are against on corresponding receiving cavity internal face, and the two ends of blade keep all and between the internal face of receiving cavity being slidably connected.The universal two-piece type structure that adopts of blade on existing straight connection type rotary-vane vaccum pump, and between two blades, holddown spring is set, therefore in rotor working procedure, blade sliding stability is poor, and because the extruding force between blade and pump chamber constantly changes, not only move noise large, and blade is easy to wear, pump housing temperature rise, when serious, directly affect vacuum pump performance, and integrated type blade its two ends in rotation process contact with pump housing receiving cavity inwall all the time, thereby improved the stress of blade in the compound motion that rotates and reciprocatingly slide, blade sliding stability is good, operation noise is low, be more conducive to running up of vacuum pump, extended the working life of vacuum pump.
Receiving cavity can be enclosed and form through rotor center and with the isometric trajectory of blade by several, as preferably, described receiving cavity is the column cavity being enclosed by the first arc-like sheet and the second arc-like sheet, and wherein the first arc-like sheet is circular arc, and rotor is inscribed within the first arc-like sheet.The column cavity being enclosed by two arc-like sheets, and while being circular arc with tangent the first arc-like sheet of rotor, simple in structure, easy-formation processing, can guarantee intake and exhaust air-flow uniformity constantly, is beneficial to the stable performance of vacuum pump performance.
As more preferably, described the first arc-like sheet is symmetric with respect to the tangent line of itself and rotor.When rotor is inscribed within the middle part of the first arc-like sheet, second arc-like sheet corresponding with the first arc-like sheet is also symmetric state, not only simplified receiving cavity shape, and blade stressed variation is at the volley little, is beneficial to running up of vacuum pump.
As more preferably, the joint of described the first arc-like sheet and the second arc-like sheet is smooth transition.When first and second arc-like sheet is smooth transition, blade stressed variation is at the volley even, has reduced operation noise, and has extended the working life of blade.
As preferably, the end of described blade is arc surfaced.The blade end of arc surfaced can guarantee that blade fully effectively contacts with receiving cavity inwall.
Therefore, the whole rotary-vane vaccum pump pump chamber structure of radially fixed length of the present utility model has following advantage: because the blade in rotor is monolithic construction, therefore blade is stressed even in the rotary course of rotor, smooth running, vacuum pump running noises is low, frictional heat is few, is a kind of choice direction of direct connection high-speed rotary chip vacuum pump structure.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is blade in the utility model running orbit figure on the first arc-like sheet;
Fig. 3 is blade in the utility model running orbit figure on the second arc-like sheet.
embodiment:
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 1, the whole rotary-vane vaccum pump pump chamber structure of a kind of radially fixed length of the present utility model, the rotor 2 in the pump housing 1 receiving cavity 11 that is rotatably connected on that comprises the pump housing 1 and bias, on rotor 2, have a radially groove 3, an all-in-one-piece blade 4 is radially being slidably connected in groove 3 radially, the two ends of blade 4 radially extend to respectively the outer also envelope of rotor 2 and are against on corresponding receiving cavity 11 internal faces, and the two ends of blade 4 keep all and between the internal face of receiving cavity 11 being slidably connected, blade 4 ends corresponding with the inwall of receiving cavity 11 are arc surfaced, receiving cavity 11 is wherein the column cavitys that jointly enclosed by the first arc-like sheet 5 and the second arc-like sheet 6, the first arc-like sheet 5 is circular arc, rotor 2 is inscribed within the middle part of the first arc-like sheet 5, as shown in Figures 2 and 3, the first arc-like sheet 5 is a part for generating circle in pump chamber design, by generating circle diameter, rotor 2 diameters and throw of eccentric have determined the length of all-in-one-piece blade 4 and the arc length of the first arc-like sheet 5, and the straight line that the length that the second arc-like sheet 6 is all-in-one-piece blades 4 of designing is definite value, by the center of circle of rotor 2, when slide along the circular arc track of the first arc-like sheet 5 in one end of this straight line, resulting straight line the other end movement locus is the track of the second arc-like sheet 6, the second arc-like sheet 6 and 5 of the first arc-like sheets are complete smooth transition state, thereby formed the receiving cavity 11 of non-circular pump chamber molded line, on the pump housing 1 right side near rotor 2 and the first arc-like sheet 5 tangent lines, have a suction port 7, left side has a relief opening 8.
Specific embodiment described herein is only to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. the whole rotary-vane vaccum pump pump chamber structure of fixed length radially, the rotor (2) in the pump housing (1) receiving cavity (11) that is rotatably connected on that comprises the pump housing (1) and bias, rotor (2) is tangent with the inwall of receiving cavity (11), and at corresponding suction port (7) and the relief opening (8) of being provided with in the pump housing (1) both sides with receiving cavity (11) tangent line near rotor (2), it is characterized in that: on described rotor (2), be provided with radially groove (3), integrated type blade (4) is radially being slidably connected in groove (3) radially, the two ends of blade (4) radially extend to respectively the outer also envelope of rotor (2) and are against on corresponding receiving cavity (11) internal face, and the two ends of blade (4) all and between the internal face of receiving cavity (11) keep being slidably connected.
2. the whole rotary-vane vaccum pump pump chamber structure of radially fixed length according to claim 1, it is characterized in that: described receiving cavity (11) is the column cavity being enclosed by the first arc-like sheet (5) and the second arc-like sheet (6), wherein the first arc-like sheet (5) is circular arc, and rotor (2) is inscribed within the first arc-like sheet (5).
3. the whole rotary-vane vaccum pump pump chamber structure of radially fixed length according to claim 2, is characterized in that: described the first arc-like sheet (5) is symmetric with respect to the tangent line of itself and rotor (2).
4. the whole rotary-vane vaccum pump pump chamber structure of radially fixed length according to claim 2, is characterized in that: the joint of described the first arc-like sheet (5) and the second arc-like sheet (6) is smooth transition.
5. according to the whole rotary-vane vaccum pump pump chamber structure of the radially fixed length described in any one in claim 1 to 4, it is characterized in that: the end of described blade (4) is arc surfaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168384.3U CN203835723U (en) | 2014-04-09 | 2014-04-09 | Radial length fixed integral rotary piece type vacuum pump cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168384.3U CN203835723U (en) | 2014-04-09 | 2014-04-09 | Radial length fixed integral rotary piece type vacuum pump cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835723U true CN203835723U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168384.3U Expired - Lifetime CN203835723U (en) | 2014-04-09 | 2014-04-09 | Radial length fixed integral rotary piece type vacuum pump cavity structure |
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| Country | Link |
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| CN (1) | CN203835723U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971872A (en) * | 2016-07-05 | 2016-09-28 | 合肥高美清洁设备有限责任公司 | Liquid pump |
| CN110345070A (en) * | 2019-08-26 | 2019-10-18 | 吴新造 | Single rotary vane type fluid vacuum pump |
| CN113250957A (en) * | 2021-04-19 | 2021-08-13 | 湖南腾智机电有限责任公司 | Single-rotor vacuum pump |
-
2014
- 2014-04-09 CN CN201420168384.3U patent/CN203835723U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971872A (en) * | 2016-07-05 | 2016-09-28 | 合肥高美清洁设备有限责任公司 | Liquid pump |
| CN110345070A (en) * | 2019-08-26 | 2019-10-18 | 吴新造 | Single rotary vane type fluid vacuum pump |
| CN113250957A (en) * | 2021-04-19 | 2021-08-13 | 湖南腾智机电有限责任公司 | Single-rotor vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |