CN202867226U - End cover structure of roots vacuum pump - Google Patents
End cover structure of roots vacuum pump Download PDFInfo
- Publication number
- CN202867226U CN202867226U CN 201220534042 CN201220534042U CN202867226U CN 202867226 U CN202867226 U CN 202867226U CN 201220534042 CN201220534042 CN 201220534042 CN 201220534042 U CN201220534042 U CN 201220534042U CN 202867226 U CN202867226 U CN 202867226U
- Authority
- CN
- China
- Prior art keywords
- end cover
- cover structure
- seal ring
- vacuum pump
- ring seat
- 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
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to an end cover structure of a roots vacuum pump. The end cover structure of the roots vacuum pump comprises a front cover (1) arranged at one end of a pump body; and an axle hole (2) is formed in the front cover (1). The end cover structure of the roots vacuum pump is characterized in that a seal ring seat (3) and a bearing block (4) are arranged inside the axle hole (2) at the inner side of the front cover (1); and the seal ring seat (3) and the bearing block (4) are in an integral structure. According to the end cover structure disclosed by the utility model, the seal ring seat and the bearing block are designed into the integral structure, thus the coaxiality of the pump is improved, and oil leakage and vibration can be prevented.
Description
Technical field
The utility model relates to a kind of Roots pump, relates in particular to a kind of end cover structure of Roots pump.
Background technique
In the front cover of Roots pump, can be provided be used to the seal ring seat that prevents leakage of oil and bearing support, these two kinds of structures generally all are split type installations, and the transmission shaft in the Roots pump all can pass this two kinds of structures, split type design coaxality is difficult to guarantee, can cause leakage of oil in the pump, vibrations.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of end cover structure of Roots pump is provided, and improves the coaxality of pump, prevents simultaneously leakage of oil and vibrations.
The purpose of this utility model is achieved in that a kind of end cover structure of Roots pump, it comprises the protecgulum that is installed in the pump housing one end, have axis hole at described protecgulum, be provided with seal ring seat and bearing support in the axis hole of described protecgulum inboard, described seal ring seat and bearing support are the integral type structure.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is designed to integral structure with seal ring seat and bearing support, can improve the coaxality of pump, prevents leakage of oil and vibrations.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein:
Protecgulum 1
Axis hole 2
Seal ring seat 3
Bearing support 4.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of end cover structure of Roots pump, it comprises the protecgulum 1 that is installed in the pump housing one end, have axis hole 2 at described protecgulum 1, in the axis hole 2 of described protecgulum 1 inboard, be provided with seal ring seat 3 and bearing support 4, described seal ring seat 3 and bearing support 4 are the integral type structure, and both are nested with on transmission shaft.
Claims (1)
1. the end cover structure of a Roots pump, it comprises the protecgulum (1) that is installed in the pump housing one end, have axis hole (2) at described protecgulum (1), it is characterized in that being provided with seal ring seat (3) and bearing support (4) in the axis hole (2) of described protecgulum (1) inboard, described seal ring seat (3) and bearing support (4) are the integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534042 CN202867226U (en) | 2012-10-18 | 2012-10-18 | End cover structure of roots vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534042 CN202867226U (en) | 2012-10-18 | 2012-10-18 | End cover structure of roots vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867226U true CN202867226U (en) | 2013-04-10 |
Family
ID=48033949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534042 Expired - Lifetime CN202867226U (en) | 2012-10-18 | 2012-10-18 | End cover structure of roots vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
-
2012
- 2012-10-18 CN CN 201220534042 patent/CN202867226U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
| CN105351245B (en) * | 2015-12-04 | 2017-09-12 | 天津市天鼓机械制造有限公司 | Roots blower mechanical sealing medium apparatus for controlling of supply |
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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 |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |