CN205190212U - Low noise screw vacuum pump - Google Patents
Low noise screw vacuum pump Download PDFInfo
- Publication number
- CN205190212U CN205190212U CN201521060792.8U CN201521060792U CN205190212U CN 205190212 U CN205190212 U CN 205190212U CN 201521060792 U CN201521060792 U CN 201521060792U CN 205190212 U CN205190212 U CN 205190212U
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- Prior art keywords
- screw
- driven
- screw rod
- vacuum pump
- protecgulum
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- Expired - Fee Related
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Abstract
The utility model provides a low noise screw vacuum pump belongs to vacuum pump technical field. It is big not enough that it has solved current screw vacuum pump noise. This low noise screw vacuum pump, including the pump case body, the box is connected to the one end of the pump case body, and the both ends of the pump case body are the protecgulum end respectively serves to correspond and sets up protecgulum, hou gai with back lid end, protecgulum end, back lid, reaches between protecgulum and the protecgulum end all set up the sealing washer between hou gai and the hougai end, the internal initiative screw rod that sets up of pump case, driven screw, the driving gear, driven gear, power rotor bearing and slave drive rotator bearing, initiative screw rod and driven screw pass through gear intermeshing, the driving gear is connected to the one end of initiative screw rod, driven gear is connected to driven screw's one end, the driving gear meshes with the driven gear, the front end of initiative screw rod penetrates the power rotor bearing, the motor of back lid link bit in the box is passed to the rear end of initiative screw rod, driven screw's front end penetrates the slave drive rotator bearing, be equipped with first muffler in the box, the internal second muffler that is equipped with of pump case.
Description
Technical field
The utility model belongs to vacuum pump technology field, relates to a kind of screw vacuum pump, particularly a kind of low noise screw vacuum pump.
Background technique
Vacuum pump is the basic part of vacuum equipment.Along with the progress of society, expanding economy, the progressively submission of people's living standard, to the requirement of working environment and the performance requirement of vacuum pump also more and more higher.
Screw-type vacuum pump is a kind of more satisfactory dry pump occurred the nineties in 20th century, and it has larger application prospect and development potentiality, occupies very consequence in vacuum pump market.Dry screw vacuum pump utilizes a pair screw rod in pump case, do synchronous high-speed counterrotating and produce air-breathing and scavenging action.Its major advantage is compact structure, the life-span is long, dynamic balance good, without the need to lubrication, pumping speed is large.It is mainly used in the vacuum technology process of high-purity, degree of vacuum is high, bad working environments can be adapted to, have and extract solidifying property, ability containing particulate matter gas, at present, on market, existing vacuum pump kind is a lot, and oil-free dry vacuum pump is due to pollution-free, energy-conserving and environment-protective, is the developing direction of following vacuum pump.And screw vacuum pump due to without friction, rational in infrastructure, gear, bearing, shaft seal have the oil lubrication in fuel tank, so this pump has the working life of overlength, belong to optimal one in vacuum pump, are adapted to electronics, chemical industry, medicine and other fields especially.
Screw vacuum pump belongs to dry vacuum pump.Oil can not be produced to the pollution of vacuum system and oil spout and oil extraction mist phenomenon in working procedure; Compared with water ring vaccum pump, do not have effluent discharge, energy efficient, tail gas easily reclaims, and is latest generation and environmentally friendly, energy-saving type vacuum pump.
This pump due to part few, operational safety is high, there is extensive adaptability, the features such as environmental protection and energy saving are non-maintaining, be the trend of world's vacuum pump now, but existing screw-type vacuum pump exists the large deficiency of noise, noise can produce the environment of surrounding and pollute, have a strong impact on daily life, especially the workman in working environment is had a huge impact.
Model utility content
The purpose of this utility model there are the problems referred to above for existing technology, proposing a kind of by arranging the first baffler and the second baffler in casing and pump case respectively, realizing a kind of low noise screw vacuum pump noise well being absorbed process.
The purpose of this utility model realizes by following technical proposal:
A kind of low noise screw vacuum pump, comprise pump case, one end connect box of described pump case, the two ends of described pump case are respectively protecgulum end and bonnet end, described protecgulum end, on bonnet end, correspondence arranges protecgulum, bonnet, between described protecgulum and protecgulum end and described bonnet and Hou Gai hold between all seal ring is set, initiatively screw rod is set in described pump case, driven screw, driving gear, driven gear, power rotor bearing and driven rotor bearing, described active screw rod and driven screw are engaged each other by gear, one end of described active screw rod connects driving gear, one end of described driven screw connects driven gear, described driving gear is meshed with driven gear, the front end of described active screw rod penetrates power rotor bearing, the rear end of described active screw rod connects the motor being positioned at casing through bonnet, the front end of described driven screw penetrates driven rotor bearing, the first baffler is provided with in described casing, the second baffler is provided with in described pump case.
In above-mentioned a kind of low noise screw vacuum pump, described motor is arranged in casing by link press span, realizes motor and better fixes, and prevents motor from the process of running up, producing displacement.
In above-mentioned a kind of low noise screw vacuum pump, the root diameter of described active screw rod is equal with the tooth tip diameter of driven screw, and the multi-turn screw thread on described active screw rod and driven screw is equal pitch thread.
In above-mentioned a kind of low noise screw vacuum pump, the top rake of described active screw rod is 23 °, and back rake angle is 14 °, and the top rake of described driven screw and the angle of back rake angle are with initiatively screw rod is contrary, and the pitch of described active screw rod and driven screw is 85mm.
Compared with prior art, this low noise screw vacuum pump, by arranging the first baffler and the second baffler in casing and pump case respectively, the parts producing noise ratio stronger are realized to carry out noise reduction process, significantly reduce the noise of equipment, create a comparatively comfortable working environment to workman.This low noise screw vacuum pump compact structure, reasonable in design simultaneously, convenient operation.
Accompanying drawing explanation
Fig. 1 is structural representation in a kind of low noise screw vacuum pump.
In figure, 1, pump case; 2, protecgulum; 3, bonnet; 4, active screw rod; 5, driven screw; 6, power rotor bearing; 7, driven rotor bearing; 8, motor; 9, casing; 10, the first baffler; 11, the second baffler; 12, driven gear; 13, driving gear.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of low noise screw vacuum pump, comprise pump case 1, one end connect box 9 of pump case 1, the two ends of pump case 1 are respectively protecgulum end and bonnet end, protecgulum end, on bonnet end, correspondence arranges protecgulum 2, bonnet 3, between protecgulum 2 and protecgulum end and between bonnet 3 and bonnet end, all seal ring is set, initiatively screw rod 4 is set in pump case 1, driven screw 5, driving gear 13, driven gear 12, power rotor bearing 6 and driven rotor bearing 7, initiatively screw rod 4 and driven screw 5 are engaged each other by gear, initiatively one end of screw rod 4 connects driving gear 13, one end of driven screw 5 connects driven gear 12, driving gear 13 is meshed with driven gear 12, initiatively the front end of screw rod 4 penetrates power rotor bearing 6, initiatively the rear end of screw rod 4 connects the motor 8 being positioned at casing 9 through bonnet, the front end of driven screw 5 penetrates driven rotor bearing 7, the first baffler 10 is provided with in casing 9, the second baffler 11 is provided with in pump case 1.
Motor 8 is arranged in casing 9 by link press span, realizes motor 8 and better fixes, and prevents motor 8 from the process of running up, producing displacement.
Initiatively the root diameter of screw rod 4 is equal with the tooth tip diameter of driven screw 5, and the multi-turn screw thread on active screw rod 4 and driven screw 5 is equal pitch thread.
Initiatively the top rake of screw rod 4 is 23 °, and back rake angle is 14 °, and the top rake of driven screw 5 and the angle of back rake angle are with initiatively screw rod 4 is contrary, and initiatively the pitch of screw rod 4 and driven screw 5 is 85mm.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ pump case 1, protecgulum 2, bonnet 3, initiatively screw rod 4, driven screw 5, power rotor bearing 6, driven rotor bearing 7, motor 8, casing 9, first baffler 10, second baffler 11, driven gear 12 herein; Term such as driving gear 13 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (4)
1. a low noise screw vacuum pump, comprise pump case, one end connect box of described pump case, the two ends of described pump case are respectively protecgulum end and bonnet end, described protecgulum end, on bonnet end, correspondence arranges protecgulum, bonnet, between described protecgulum and protecgulum end and described bonnet and Hou Gai hold between all seal ring is set, it is characterized in that, initiatively screw rod is set in described pump case, driven screw, driving gear, driven gear, power rotor bearing and driven rotor bearing, described active screw rod and driven screw are engaged each other by gear, one end of described active screw rod connects driving gear, one end of described driven screw connects driven gear, described driving gear is meshed with driven gear, the front end of described active screw rod penetrates power rotor bearing, the rear end of described active screw rod connects the motor being positioned at casing through bonnet, the front end of described driven screw penetrates driven rotor bearing, the first baffler is provided with in described casing, the second baffler is provided with in described pump case.
2. a kind of low noise screw vacuum pump according to claim 1, it is characterized in that, described motor is arranged in casing by link press span.
3. a kind of low noise screw vacuum pump according to claim 1, is characterized in that, the root diameter of described active screw rod is equal with the tooth tip diameter of driven screw, and the multi-turn screw thread on described active screw rod and driven screw is equal pitch thread.
4. a kind of low noise screw vacuum pump according to claim 3, it is characterized in that, the top rake of described active screw rod is 23 °, back rake angle is 14 °, the top rake of described driven screw and the angle of back rake angle are with initiatively screw rod is contrary, and the pitch of described active screw rod and driven screw is 85mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060792.8U CN205190212U (en) | 2015-12-17 | 2015-12-17 | Low noise screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060792.8U CN205190212U (en) | 2015-12-17 | 2015-12-17 | Low noise screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190212U true CN205190212U (en) | 2016-04-27 |
Family
ID=55783208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521060792.8U Expired - Fee Related CN205190212U (en) | 2015-12-17 | 2015-12-17 | Low noise screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882415A (en) * | 2019-02-21 | 2019-06-14 | 西安航天动力研究所 | A kind of dry vacuum pump |
-
2015
- 2015-12-17 CN CN201521060792.8U patent/CN205190212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882415A (en) * | 2019-02-21 | 2019-06-14 | 西安航天动力研究所 | A kind of dry vacuum pump |
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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 |
Granted publication date: 20160427 Termination date: 20161217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |