CN203867892U - Roots vacuum pump - Google Patents
Roots vacuum pump Download PDFInfo
- Publication number
- CN203867892U CN203867892U CN201420241345.1U CN201420241345U CN203867892U CN 203867892 U CN203867892 U CN 203867892U CN 201420241345 U CN201420241345 U CN 201420241345U CN 203867892 U CN203867892 U CN 203867892U
- Authority
- CN
- China
- Prior art keywords
- rotor shaft
- rotor axle
- pump
- driven rotor
- vacuum pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a roots vacuum pump, which comprises a motor, a bracket, a pump body and an end cover, wherein the bracket is arranged between the motor and the pump body; a pair of driving rotor shaft and driven rotor shaft mounted in parallel is arranged in the pump body; one end of the driving rotor shaft is matched with the motor through a coupler; a synchronous gear is arranged at the left ends of the driving rotor shaft and the driven rotor shaft; two pairs of rotors are vertically mounted on the driving rotor shaft and the driven rotor shaft; the end cover is mounted at the tail end of the pump body; a bearing chamber is arranged at the joint of the right ends of the driving rotor shaft and the driven rotor shaft and the end cover, and is sealed through a mechanical seal; expanding sleeves are arranged at the tail ends of the driving rotor shaft and the driven rotor shaft. The roots vacuum pump has the benefits as follows: two single-stage roots vacuum pumps connected in series are integrated into a whole, the structure is compact, the occupied space is small, the dynamic balance performance of the vacuum pump is improved, the working efficiency of the vacuum pump is improved, the power consumption is reduced, auxiliary tube fittings of the unit are reduced, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of vacuum pump, relates in particular to a kind of Roots pump.
Background technique
Roots pump is a kind of vacuum pump conventional in the industry such as semiconductor, photovoltaic industry, petrochemical industry, food processing, both can be used as the suction booster that is operated in middle high vacuum, can be used as again transmission pump uses, can also plural serial stage composition can discharging directly into atmosphere the dry pump of multi-stage roots, purposes is very extensive.But existing various forms of Roots pump is large because driving shaft is subject to the moment of flexure that periodic active force, rotor shaft be subject to, rotor axle dynamic-balance poor performance, vibration and noise are bigger than normal, thereby cause that Roots pump pump energy consumption is high, inefficiency, cost be high.
Therefore,, for addressing the above problem, spy provides a kind of new technological scheme.
Model utility content
The utility model provides a kind of Roots pump.
The technical solution adopted in the utility model is:
A kind of Roots pump, comprise motor, support, the pump housing and end cap, between described motor and the pump housing, be provided with support, in the described pump housing, be provided with power rotor axle and driven rotor axle that pair of parallel is installed, match with motor by coupling in described power rotor axle one end, be provided with synchromesh gear at power rotor axle and driven rotor axle left end, two pairs of orthogonal being arranged on power rotor axle and driven rotor axle of rotor, the end of the described pump housing is provided with end cap, the joint of described power rotor axle and driven rotor axle right-hand member and end cap is provided with bearing chamber, and be sealed envelope by machine, described power rotor axle and driven rotor the tip of the axis are equipped with expansion set.
The joint of described support and the pump housing is provided with lubricating cup.
Described end cap is provided with visor.
The beneficial effects of the utility model are: this kind of Roots pump becomes one the single-stage Roots pump of two series connection, compact structure, take up room little, improve the dynamic balance performance of vacuum pump, improved vacuum pump working efficiency, reduced power consumption, reduced the attached pipe fitting that helps of unit, more be conducive to making and the maintenance of unit, greatly reduce user cost.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Wherein: 1, motor, 2, support, 3, the pump housing, 4, end cap, 5, power rotor axle, 6, driven rotor axle, 7, coupling, 8, synchromesh gear, 9, rotor, 10, bearing chamber, 11, machine envelope, 12, expansion set, 13, lubricating cup, 14, visor.
Embodiment
In order to deepen understanding of the present utility model, be described in further detail of the present utility model below in conjunction with embodiment and accompanying drawing, this embodiment only, for explaining the utility model, does not form the restriction to protection domain of the present utility model.
As shown in Figure 1, a kind of Roots pump of the present utility model, comprise motor 1, support 2, the pump housing 3 and end cap 4, between motor 1 and the pump housing 3, be provided with support 2, in the pump housing 3, be provided with power rotor axle 5 and driven rotor axle 6 that pair of parallel is installed, match with motor 1 by coupling 7 in power rotor axle 5 one end, be provided with synchromesh gear 8 at power rotor axle 5 and driven rotor axle 6 left ends, two pairs of orthogonal being arranged on power rotor axle 5 and driven rotor axle 6 of rotor 9, the end of the pump housing 1 is provided with end cap 4, the joint of power rotor axle 5 and driven rotor axle 6 right-hand members and end cap 4 is provided with bearing chamber 10, and seal 11 sealings by machine, the end of power rotor axle 5 and driven rotor axle 6 is equipped with expansion set 12, support 2 is provided with lubricating cup 13 with the joint of the pump housing 3, end cap 4 is provided with visor 14.
The beneficial effects of the utility model are: this kind of Roots pump becomes one the single-stage Roots pump of two series connection, compact structure, take up room little, improve the dynamic balance performance of vacuum pump, improved vacuum pump working efficiency, reduced power consumption, reduced the attached pipe fitting that helps of unit, more be conducive to making and the maintenance of unit, greatly reduce user cost.
The above; it is only preferred embodiment of the present utility model; be not the restriction of the utility model being made to any other form, and according to any amendment or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (3)
1. a Roots pump, it is characterized in that: comprise motor, support, the pump housing and end cap, between described motor and the pump housing, be provided with support, in the described pump housing, be provided with power rotor axle and driven rotor axle that pair of parallel is installed, match with motor by coupling in described power rotor axle one end, be provided with synchromesh gear at power rotor axle and driven rotor axle left end, two pairs of orthogonal being arranged on power rotor axle and driven rotor axle of rotor, the end of the described pump housing is provided with end cap, the joint of described power rotor axle and driven rotor axle right-hand member and end cap is provided with bearing chamber, and be sealed envelope by machine, described power rotor axle and driven rotor the tip of the axis are equipped with expansion set.
2. a kind of Roots pump according to claim 1, is characterized in that: the joint of described support and the pump housing is provided with lubricating cup.
3. a kind of Roots pump according to claim 1, is characterized in that: described end cap is provided with visor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241345.1U CN203867892U (en) | 2014-05-13 | 2014-05-13 | Roots vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241345.1U CN203867892U (en) | 2014-05-13 | 2014-05-13 | Roots vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867892U true CN203867892U (en) | 2014-10-08 |
Family
ID=51648852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241345.1U Expired - Lifetime CN203867892U (en) | 2014-05-13 | 2014-05-13 | Roots vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252927A (en) * | 2017-12-11 | 2018-07-06 | 安徽颐博思泵业有限责任公司 | Horizontal multi-stage pump |
-
2014
- 2014-05-13 CN CN201420241345.1U patent/CN203867892U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252927A (en) * | 2017-12-11 | 2018-07-06 | 安徽颐博思泵业有限责任公司 | Horizontal multi-stage 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: 20141008 |