CN205190219U - Energy -conserving low noise variable pitch screw vacuum pump - Google Patents
Energy -conserving low noise variable pitch screw vacuum pump Download PDFInfo
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- CN205190219U CN205190219U CN201520932917.5U CN201520932917U CN205190219U CN 205190219 U CN205190219 U CN 205190219U CN 201520932917 U CN201520932917 U CN 201520932917U CN 205190219 U CN205190219 U CN 205190219U
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- pitch district
- pump housing
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Abstract
The utility model discloses an energy -conserving low noise variable pitch screw vacuum pump, including the pump body, side cap, end cover, pivot, shaft coupling, gear assembly and motor, the one end and the pump body fixed connection of side cap, the other end and end cover fixed connection, the motor is fixed and is set up on the end cover, and the power take off end fixed connection of setting, shaft coupling and motor is fixed respectively to pivot and gear assembly with the shaft coupling, it still includes the rotor, and fixed setting of rotor is linked in the pivot and with the pivot, the rotor comprises first pitch district, second pitch district and the third pitch district of arranging in proper order, first pitch district uses the cooperation with the air inlet of the pump body, third pitch district uses the cooperation with the gas outlet of the pump body, the initiating terminal in first pitch district is held to the termination that second pitch was distinguished, and its pitch is the grow gradually, the tail end that the tail end in second pitch district was distinguished to third pitch, its pitch diminishes gradually. The advantage is: the utility model discloses in use energy consumption noise low and that produce is less.
Description
Technical field
The utility model belongs to vacuum pump technology field, especially relates to a kind of energy-saving and low noise variable pitch screw vacuum pump.
Background technique
At present, 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.The rotor of existing screw vacuum pump on it is mostly uniform pitch structure, and its pumping efficiency of the vacuum pump of this construction rotor is comparatively low, makes energy consumption comparatively large like this, and can produce larger noise at work, cause noise pollution to surrounding enviroment; 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 energy-saving and low noise variable pitch screw vacuum pump, noise lower feature when it has energy consumption low and work.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of energy-saving and low noise variable pitch screw vacuum pump, comprise the pump housing, side cover, end cap, rotating shaft, coupling, gear assembly and motor, 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; It also comprises rotor, described rotor to be fixedly installed in rotating shaft and to link with rotating shaft, described rotor is made up of the first pitch district be arranged in order, the second pitch district and the 3rd pitch district, the suction port collaboration of described first pitch district and the pump housing, the air outlet collaboration of described 3rd pitch district and the pump housing; The starting point in described first pitch district is to the clearing end in the second pitch district, and its pitch becomes large gradually; The tail end in described second pitch district is to the tail end in the 3rd pitch district, and its pitch diminishes gradually.
The suction port of the described pump housing is provided with filter screen.
The inflation cooling vent of the described pump housing is provided with filter and sound damper.
After adopting said structure, the utility model is compared to the prior art advantageously: structure of the present utility model is simple, on rotor, the pitch in the second pitch district is greater than the pitch in the first pitch district and the 3rd pitch district, and first pitch district arrive little change again to the pitch in the 3rd pitch district is ascending, this pitch change can reduce relief opening back pressure, reaches energy-conservation effect; And in use due to the reduction of pressure reduction, its air-flow reflux speed slows down, and the noise making air-flow pulse produce also reduces greatly.
Accompanying drawing explanation
Fig. 1 is plane structure schematic diagram of the present utility model.
Fig. 2 is opposite side plane structure schematic diagram of the present utility model.
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 energy-saving and low noise variable pitch screw vacuum pump, comprises the pump housing 10, side cover 20, end cap 30, rotating shaft 40, coupling 50, gear assembly 60, motor 70 and rotor 80; 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.The suction port of the pump housing 10 is provided with filter screen 11, and filter screen 11 can filter the impurity in ambient air, makes the air that enters comparatively pure, reduces the infringement to parts.The inflation cooling vent of the pump housing 10 is provided with filter and sound damper 12, the noise produced when the cooled gas that filter and sound damper 12 can enter inflation cooling vent filters and reduces its work.Side cover 20 is between the pump housing 10 and end cap 30, and its one end is fixedly connected with the pump housing 10, and the other end is fixedly connected with end cap 30; Motor 70 is fixedly installed on end cap 30, and rotating shaft 40 and gear assembly 60 are fixedly installed with coupling 50 respectively, and coupling 50 is fixedly connected with the clutch end of motor 70; Like this when motor 70 outputting power, rotating shaft 40 and gear assembly 60 is driven to work together by the interaction energy of coupling 50.Rotor 80 to be fixedly installed in rotating shaft 40 and to link with rotating shaft 40, rotor 80 is made up of the first pitch district 82 of pitch district 81, second be arranged in order and the 3rd pitch district 83, the suction port collaboration of the first pitch district 81 and the pump housing 10, the air outlet collaboration of the 3rd pitch district 83 and the pump housing 10, the pitch in the second pitch district 82 is greater than the pitch in the first pitch district 81 and the 3rd pitch district 83; The starting point in the first pitch district 81 is to the clearing end in the second pitch district 82, and its pitch becomes large gradually, the blade number of turns namely on rotor 80 by the half-turn in the first pitch district 81 to the whole circle in the second pitch district 82, to reach maximum aspirated volume; The starting point in the second pitch district 82 is to the clearing end in the 3rd pitch district 83, its pitch diminishes gradually, 3rd pitch district 83 is made up of the four circle blade number of turns after three circles, and namely from the tail end in the second pitch district 82, to the tail end in the 3rd pitch district 83, it compresses gas gradually; This structure can effectively reduce relief opening back pressure, reaches energy-conservation effect; And due to the reduction of pressure reduction, its air-flow reflux speed slows down, and the noise making air-flow pulse produce also reduces greatly.
Claims (3)
1. an energy-saving and low noise variable pitch screw vacuum pump, comprise the pump housing (10), side cover (20), end cap (30), rotating shaft (40), coupling (50), gear assembly (60) and motor (70), one end of described side cover (20) is fixedly connected with the pump housing (10), and the other end is fixedly connected with end cap (30); Described motor (70) is fixedly installed on end cap (30), described rotating shaft (40) and gear assembly (60) are fixedly installed with coupling (50) respectively, and described coupling (50) is fixedly connected with the clutch end of motor (70); It is characterized in that: also comprise rotor (80), described rotor (80) is fixedly installed on rotating shaft (40) and goes up and link with rotating shaft (40), described rotor (80) is made up of the first pitch district (81) be arranged in order, the second pitch district (82) and the 3rd pitch district (83), the suction port collaboration of described first pitch district (81) and the pump housing (10), the air outlet collaboration of described 3rd pitch district (83) and the pump housing (10); The starting point in described first pitch district (81) is to the clearing end in the second pitch district (82), and its pitch becomes large gradually; The tail end in described second pitch district (82) is to the tail end in the 3rd pitch district (83), and its pitch diminishes gradually.
2. energy-saving and low noise variable pitch screw vacuum pump according to claim 1, is characterized in that: the suction port of the described pump housing (10) is provided with filter screen (11).
3. energy-saving and low noise variable pitch screw vacuum pump according to claim 1 and 2, is characterized in that: the inflation cooling vent of the described pump housing (10) is provided with filter and sound damper (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932917.5U CN205190219U (en) | 2015-11-20 | 2015-11-20 | Energy -conserving low noise variable pitch screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932917.5U CN205190219U (en) | 2015-11-20 | 2015-11-20 | Energy -conserving low noise variable pitch screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190219U true CN205190219U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520932917.5U Active CN205190219U (en) | 2015-11-20 | 2015-11-20 | Energy -conserving low noise variable pitch screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071585A (en) * | 2017-11-08 | 2018-05-25 | 台州学院 | A kind of two-period form screw vacuum pump rotor |
| CN113586448A (en) * | 2021-08-25 | 2021-11-02 | 西安交通大学 | Two-section type gradual-change pitch double-screw compressor rotor |
-
2015
- 2015-11-20 CN CN201520932917.5U patent/CN205190219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071585A (en) * | 2017-11-08 | 2018-05-25 | 台州学院 | A kind of two-period form screw vacuum pump rotor |
| CN113586448A (en) * | 2021-08-25 | 2021-11-02 | 西安交通大学 | Two-section type gradual-change pitch double-screw compressor rotor |
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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. |
|
| CP01 | Change in the name or title of a patent holder |