CN204572499U - A kind of multistage vacuum pump - Google Patents
A kind of multistage vacuum pump Download PDFInfo
- Publication number
- CN204572499U CN204572499U CN201520220635.2U CN201520220635U CN204572499U CN 204572499 U CN204572499 U CN 204572499U CN 201520220635 U CN201520220635 U CN 201520220635U CN 204572499 U CN204572499 U CN 204572499U
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- chamber
- multistage
- vacuum pump
- rotating shaft
- blades
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Abstract
The utility model belongs to technical field of vacuum, particularly relates to a kind of multistage vacuum pump.Comprise air inlet chamber, work chamber and exhaust chamber, multiple blades in tandem in single rotating shaft integral installation are in pump housing chamber, single rotating shaft runs through air inlet chamber, work chamber and exhaust chamber successively, and one end of described single rotating shaft is passed by exhaust chamber and is connected with drive unit.Be provided with the multistage fan dish be sheathed in rotating shaft in described work chamber, described air inlet chamber and exhaust chamber are respectively equipped with suction port and relief opening.The utility model structure is simple, uses without additional materials, energy-efficient, easy to use.
Description
Technical field
The utility model belongs to technical field of vacuum, particularly relates to a kind of multistage vacuum pump.
Background technique
Vacuum pump typically refers to following equipment, and it is for discharging gas in sealed vessel molecule and for increasing degree of vacuum in container as follows: suction and pressurized gas under subatmospheric pressure are also discharged in the air in the nature external world.Existing vacuum pump is generally piston type, water ring type or aqueous jet formula etc., and this vacuum pump structure is complicated, and equipment cost is high, maintenance difficult, and noise is comparatively large, and it is also larger to run spending.
Model utility content
For the problems referred to above, the purpose of this utility model is to provide a kind of multistage vacuum pump.This multi-stage vacuum pump structure is simple, energy-efficient, easy to use.
To achieve these goals, the utility model is by the following technical solutions:
A kind of multistage vacuum pump, comprise the pump housing, multistage fan dish and rotating shaft, be provided with successively in its middle pump body be interconnected air inlet chamber, work chamber and exhaust chamber, described axis of rotation is arranged in the pump housing, and run through air inlet chamber, work chamber and exhaust chamber successively, one end of described rotating shaft is passed by exhaust chamber and is connected with drive unit, be provided with the multistage fan dish be sheathed in rotating shaft in described work chamber, described air inlet chamber and exhaust chamber are respectively equipped with suction port and relief opening.
The described pump housing comprises the rear end seat, sleeve and the front end seat that connect successively, and described air inlet chamber, work chamber and exhaust chamber are set in turn in rear end seat, sleeve and front end seat, and described suction port and relief opening are arranged on rear end seat and front end seat respectively.
Described work chamber is multistage chamber, and described multistage chamber is separated by multiple spacer rings with spacing that sleeve lining is circumferentially provided with.
The shaft shoulder that one end of described multistage fan dish is provided with by rotating shaft is located, and the other end is located by nut, and each blades in described multistage fan dish is placed in the chambers at different levels of multistage chamber respectively, is provided with spacer between adjacent two bladess.
Described blades comprises fixed tray, flabellum and connecting ring, and wherein the center of fixed tray is provided with axis hole, and the excircle of described fixed tray is circumferentially provided with multiple flabellum successively, and the outer end of multiple flabellum is connected by connecting ring.
The external diameter of described blades is less than the internal diameter of spacer ring.
The external diameter of described blades is greater than the internal diameter of spacer ring, is less than the inner diameter of sleeve.The internal diameter of described connecting ring is equal with the internal diameter of spacer ring.Described sleeve is more piece split-type structural, and each joint sleeve is corresponding with each blades respectively.
The end of described rear end seat is provided with end cap.
Advantage of the present utility model and beneficial effect are:
1. the utility model structure is simple, uses without additional materials, energy-efficient, easy to use.
2. the flabellum end of each blades of the utility model is connected by connecting ring, and blades unitary rotation is stablized.
3. the utility model embodiment one, blades external diameter is less than work chamber's internal diameter, and energy safe handling, structure is simple, and blades at different levels is easy for installation, easy to maintenance.
4. the utility model embodiment two, blades external diameter is less than work chamber's internal diameter, just can install, and ensures that safe handling will lean on the corresponding spacer ring in work chamber, good working effect.
5. the utility model embodiment three, the external diameter of connecting ring is greater than the internal diameter of spacer ring, and the internal diameter of connecting ring is equal with the internal diameter of spacer ring.This structure is conducive to the backflow reducing gas, is conducive to the efficiency vacuumized.Sleeve is more piece split-type structural, is convenient to install each and blades.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of rear end seat in the utility model;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the structural representation of the utility model fan dish;
Fig. 5 is A-A sectional view in Fig. 4;
Fig. 6 is the structural representation of the utility model embodiment two;
Fig. 7 is the structural representation of the utility model embodiment three.
Wherein: 1 is end cap, 2 is rear end seat, and 3 is suction port, and 4 is sleeve, and 5 is spacer, and 6 is blades, and 601 is fixed tray, and 602 is flabellum, and 603 is connecting ring, and 7 is nut, and 8 is front end seat, and 9 is relief opening, and 10 is bearing, and 11 is rotating shaft, and 12 is spacer ring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment one
As Figure 1-3, the utility model comprises the pump housing, multistage fan dish and rotating shaft 11, be provided with successively in its middle pump body be interconnected air inlet chamber, work chamber and exhaust chamber, described rotating shaft 11 is arranged in the pump housing and two ends are rotatably installed on the pump housing by bearing 10, rotating shaft 11 runs through air inlet chamber, work chamber and exhaust chamber successively, and one end of described rotating shaft 11 is passed by exhaust chamber and is connected with drive unit.Be provided with the multistage fan dish be sheathed in rotating shaft 11 in described work chamber, the shaft shoulder that one end of described multistage fan dish is provided with by rotating shaft 11 is located, and the other end is located by nut 7.Described air inlet chamber and exhaust chamber are respectively equipped with suction port 3 and relief opening 9.
The described pump housing comprises the rear end seat 2, sleeve 4 and the front end seat 8 that connect successively, described air inlet chamber, work chamber and exhaust chamber are set in turn in rear end seat 2, sleeve 4 and front end seat 8, described suction port 3 and relief opening 9 are arranged on rear end seat 2 and front end seat 8 respectively, and the end of described rear end seat 2 is provided with end cap 1.
Described multistage fan dish is made up of multiple blades 6, and each blades 6 is connected with rotating shaft 11 key, is provided with spacer 5 between adjacent two bladess 6.
As shown in Figure 4, Figure 5, described blades 6 comprises fixed tray 601, flabellum 602 and connecting ring 603, wherein the center of fixed tray 601 is provided with axis hole, and the excircle of described fixed tray 601 is circumferentially evenly equipped with multiple flabellum 602, and the outer end of multiple flabellum 602 is connected by connecting ring 603.
Described rotating shaft 11 is rotated by the driving of drive unit (motor), and rotating shaft 11 simultaneously drives multistage fan dish fast rotational.Now, air will enter air inlet chamber from suction port 3, then flows through sleeve 4 and flow in exhaust chamber, is finally discharged by relief opening 9.When suction port 3 is with when being connected by vacuum chamber, by vacuum chamber indoor gas just by quantitative discharge, air pressure lower than the air pressure of discharge directions, will form vacuum.
Embodiment two
As shown in Figure 6, the present embodiment is substantially identical with the structure of embodiment one, unlike: described work chamber is multistage chamber, and described multistage chamber is separated by multiple spacer rings 12 with equidistant from distance that sleeve 4 inwall is circumferentially provided with.Each blades 6 in described multistage fan dish is placed in the chambers at different levels of multistage chamber respectively.The external diameter of described blades 6 is less than the internal diameter of spacer ring 12, and namely the external diameter of connecting ring 603 is less than the internal diameter of spacer ring 12.This structure is convenient to the installation of blades 6 at different levels, and structure is simple, easy to maintenance.
Embodiment three
As shown in Figure 7, the present embodiment is substantially identical with the structure of embodiment two, unlike: the external diameter of described blades 6 is greater than the internal diameter of spacer ring 12, be less than the inner diameter of sleeve 4, namely the external diameter of connecting ring 603 is greater than the internal diameter of spacer ring 12, and the internal diameter of described connecting ring 603 is equal with the internal diameter of spacer ring 12.This structure is conducive to the backflow reducing gas, is conducive to the efficiency vacuumized.For the ease of installing each and blades 6, described sleeve 4 is more piece split-type structural, and each joint sleeve is corresponding with each blades 6 respectively.
Working principle of the present utility model is:
The utility model is undertaken multi-stage superimposed by blades 6, namely gas is pumped to time one-level blades 6 intake grill by previous stage High Rotation Speed blades 6, the gas with initial velocity continues to pump forward by secondary one-level blades 6, superpose step by step, make wind outlet section have higher static pressure, and wind inlet section produce lower degree of vacuum.Quantity, the rotating speed of vacuum pump characteristics and blades 6 are relevant, can need to determine the quantity of blades 6 and the rotating speed of blades 6 according to purposes.
Claims (10)
1. a multistage vacuum pump, it is characterized in that, comprise the pump housing, multistage fan dish and rotating shaft (11), the air inlet chamber be interconnected is provided with successively in its middle pump body, work chamber and exhaust chamber, described rotating shaft (11) is rotatably installed in the pump housing, and run through air inlet chamber successively, work chamber and exhaust chamber, one end of described rotating shaft (11) is passed by exhaust chamber, and be connected with drive unit, the multistage fan dish be sheathed in rotating shaft (11) is provided with in described work chamber, described air inlet chamber and exhaust chamber are respectively equipped with suction port (3) and relief opening (9).
2. by multistage vacuum pump according to claim 1, it is characterized in that, the described pump housing comprises the rear end seat (2), sleeve (4) and the front end seat (8) that connect successively, described air inlet chamber, work chamber and exhaust chamber are set in turn in rear end seat (2), sleeve (4) and front end seat (8), and described suction port (3) and relief opening (9) are arranged on rear end seat (2) and front end seat (8) respectively.
3., by multistage vacuum pump according to claim 2, it is characterized in that, described work chamber is multistage chamber, and described multistage chamber is separated by multiple spacer rings (12) with spacing that sleeve (4) inwall is circumferentially provided with.
4. by multistage vacuum pump according to claim 3, it is characterized in that, the shaft shoulder that one end of described multistage fan dish is provided with by rotating shaft (11) is located, the other end is by nut (7) location, each blades (6) in described multistage fan dish is placed in the chambers at different levels of multistage chamber respectively, is provided with spacer (5) between adjacent two bladess (6).
5. by multistage vacuum pump according to claim 4, it is characterized in that, described blades (6) comprises fixed tray (601), flabellum (602) and connecting ring (603), wherein the center of fixed tray (601) is provided with axis hole, the excircle of described fixed tray (601) is circumferentially provided with multiple flabellum (602) successively, and the outer end of multiple flabellum (602) is connected by connecting ring (603).
6., by the multistage vacuum pump described in claim 4 or 5, it is characterized in that, the external diameter of described blades (6) is less than the internal diameter of spacer ring (12).
7., by multistage vacuum pump according to claim 5, it is characterized in that, the external diameter of described blades (6) is greater than the internal diameter of spacer ring (12), is less than the inner diameter of sleeve (4).
8., by multistage vacuum pump according to claim 7, it is characterized in that, the internal diameter of described connecting ring (603) is equal with the internal diameter of spacer ring (12).
9. by the multistage vacuum pump described in claim 7 or 8, it is characterized in that, described sleeve (4) is more piece split-type structural, and each joint sleeve is corresponding with each blades (6) respectively.
10., by multistage vacuum pump according to claim 2, it is characterized in that, the end of described rear end seat (2) is provided with end cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220635.2U CN204572499U (en) | 2015-04-13 | 2015-04-13 | A kind of multistage vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220635.2U CN204572499U (en) | 2015-04-13 | 2015-04-13 | A kind of multistage vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572499U true CN204572499U (en) | 2015-08-19 |
Family
ID=53865143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520220635.2U Expired - Fee Related CN204572499U (en) | 2015-04-13 | 2015-04-13 | A kind of multistage vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI718766B (en) * | 2019-11-19 | 2021-02-11 | 建準電機工業股份有限公司 | Liquid cooling system and series-connected pump thereof |
-
2015
- 2015-04-13 CN CN201520220635.2U patent/CN204572499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI718766B (en) * | 2019-11-19 | 2021-02-11 | 建準電機工業股份有限公司 | Liquid cooling system and series-connected pump thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150819 Termination date: 20210413 |