CN204553210U - With the double-suction double screw pump of conical expansion cover - Google Patents
With the double-suction double screw pump of conical expansion cover Download PDFInfo
- Publication number
- CN204553210U CN204553210U CN201420812113.7U CN201420812113U CN204553210U CN 204553210 U CN204553210 U CN 204553210U CN 201420812113 U CN201420812113 U CN 201420812113U CN 204553210 U CN204553210 U CN 204553210U
- Authority
- CN
- China
- Prior art keywords
- expansion cover
- conical expansion
- conical
- gear ring
- double
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a kind of double-suction double screw pump with conical expansion cover, comprise gear ring, conical expansion cover, conical expansion cover has conical surface, outside thread and radial gap, gear ring has the endoporus of tapering same with conical surface, gear ring and conical expansion cover are matched by conical surface and endoporus, form the gap between 0.5-2 in the side that gear ring matches with conical expansion cover.
Description
Technical field
The utility model relates to screw pump, particularly relates to a kind of double-suction double screw pump with conical expansion cover.
Background technique
Double-suction double screw pump structure is shown in Fig. 1, according to technical requirements, driving screw 2 and the screw thread on sub-screw 1 should control the gap at each position well to ensure this double-suction double screw pump works fine, and the prerequisite realizing this point to be gear 3 should accurately locate with gear ring 4.This just needs in assembly process, and after the threaded adjustment on driving screw 2 with sub-screw 1 puts in place, gear 3 and gear ring 4 should accurately be located and fix.Existing way is, sub-screw 1 is engaged with gear 3 by gear ring 4 and axle sleeve 5, and needs between gear ring 4 and axle sleeve 5 to be located and fastening effect by taper pin B1 and bolt B 2, to transmit the moment of torsion of gear.Because the installation of taper pin B1 is more loaded down with trivial details, hole to gear ring 4 and axle sleeve 5 cooperation, ream after must adjusting screw thread in assembly process, whole assembly process needs the cost longer time just can install; Especially at the use spot replace gear of user, due to by the restriction of field condition, Renewal process often needs to take a long time and assembly precision can't ensure.
Model utility content
The purpose of this utility model is to provide a kind of double-suction double screw pump with conical expansion cover, to realize loading and unloading fast and accurately of two screw pump.
The technical solution of the utility model is achieved in that a kind of double-suction double screw pump with conical expansion cover, comprises gear ring, conical expansion cover.Conical expansion cover has conical surface, outside thread and radial gap; Gear ring has the endoporus of tapering same with conical surface.Gear ring and conical expansion cover are matched by conical surface and endoporus, form the gap between 0.5-2 in the side that gear ring matches with conical expansion cover.
Described conical surface tapering is in 1: 5 to 1: 20 scopes.
The outside thread of described conical expansion cover is fine thread.
Compared with prior art, its effect is the utility model: it is more accurate 1, to install.Existing technology, owing to needing to be located by taper pin between gear ring and axle sleeve, there is taper pin assembly error in execute-in-place unavoidably; The utility model is then by being loaded in gear ring by conical expansion cover, conical expansion cover under force by gear ring with link up quickly and accurately from screw rod, in-site installation is very convenient; 2, handling are more quick.Without the need to making side locating stud between conical expansion cover and gear ring, also without the need to loading and unloading bolt, save a large amount of lay day.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the double-suction double screw pump sectional view adopting conventional art;
Fig. 2 the utility model sectional view;
Fig. 3 is the utility model I portion enlarged view;
The A direction view of Fig. 4 conical expansion cover;
Fig. 5 is gear sectional view.
In figure: sub-screw (1), driving screw (2), driving gear (3), gear ring (4), conical expansion cover (5), the pump housing (6)
Embodiment
See accompanying drawing 2, Fig. 3, Fig. 4, Fig. 5, a kind of double-suction double screw pump with conical expansion cover, comprises gear ring (4), conical expansion cover (5).Conical expansion cover (5) has conical surface (51), outside thread (52) and radial gap (53); Gear ring (4) has the endoporus (41) with conical surface (51) same tapering.Gear ring (4) and conical expansion cover (5) are matched by conical surface (51) and endoporus (41), form the gap between 0.5-2 in the side that gear ring (4) matches with conical expansion cover (5).
Described conical surface (51) tapering is in 1: 5 to 1: 20 scopes.
The outside thread (52) of described conical expansion cover (5) is fine thread.
Embodiment: a kind of double-suction double screw pump with conical expansion cover, comprises sub-screw (1), driving screw (2), driving gear (3), gear ring (4), conical expansion cover (5), the pump housing (6).Wherein, after sub-screw (1) and driving screw (2) engage each other, be arranged in the pump housing (6), sub-screw (1) is provided with driving gear (3), gear ring (4) and conical expansion cover (5) with same one end of driving screw (2).Gear ring (4) engages with the driving gear (3) be assemblied on driving screw (2), and power is passed to sub-screw (1) by conical expansion cover (5).The side that conical expansion cover (5) matches with gear ring (4) forms the gap between 0.5-2, under external force, after conical expansion cover (5) press-in gear ring (4), gap diminishes, under the frictional force effect formed, realize the close-coupled of conical expansion cover (5), gear ring (4) and sub-screw (1) three.
Claims (3)
1. the double-suction double screw pump with conical expansion cover, comprise gear ring, conical expansion cover, conical expansion cover has conical surface, outside thread and radial gap, gear ring has the endoporus of tapering same with conical surface, gear ring and conical expansion cover are matched by conical surface and endoporus, form the gap between 0.5-2 in the side that gear ring matches with conical expansion cover.
2. a kind of double-suction double screw pump with conical expansion cover according to claim 1, is characterized in that conical surface tapering is in 1: 5 to 1: 20 scopes.
3. a kind of double-suction double screw pump with conical expansion cover according to claim 1, is characterized in that the outside thread that conical expansion overlaps is fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420812113.7U CN204553210U (en) | 2014-12-19 | 2014-12-19 | With the double-suction double screw pump of conical expansion cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420812113.7U CN204553210U (en) | 2014-12-19 | 2014-12-19 | With the double-suction double screw pump of conical expansion cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553210U true CN204553210U (en) | 2015-08-12 |
Family
ID=53828331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420812113.7U Expired - Fee Related CN204553210U (en) | 2014-12-19 | 2014-12-19 | With the double-suction double screw pump of conical expansion cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725796A (en) * | 2019-11-11 | 2020-01-24 | 浙江思科瑞真空技术有限公司 | Screw pump with multi-section rotor structure |
| CN113323877A (en) * | 2021-05-28 | 2021-08-31 | 宁波鲍斯能源装备股份有限公司 | Hinge assembly process of screw compressor |
-
2014
- 2014-12-19 CN CN201420812113.7U patent/CN204553210U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725796A (en) * | 2019-11-11 | 2020-01-24 | 浙江思科瑞真空技术有限公司 | Screw pump with multi-section rotor structure |
| CN110725796B (en) * | 2019-11-11 | 2021-08-13 | 浙江思科瑞真空技术有限公司 | Screw pump with multi-section rotor structure |
| CN113323877A (en) * | 2021-05-28 | 2021-08-31 | 宁波鲍斯能源装备股份有限公司 | Hinge assembly process of screw compressor |
| CN113323877B (en) * | 2021-05-28 | 2022-06-17 | 宁波鲍斯能源装备股份有限公司 | Hinge assembly process of screw compressor |
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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: 20150812 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |