CN202023736U - Splitting type double-screw pump - Google Patents
Splitting type double-screw pump Download PDFInfo
- Publication number
- CN202023736U CN202023736U CN2011201266822U CN201120126682U CN202023736U CN 202023736 U CN202023736 U CN 202023736U CN 2011201266822 U CN2011201266822 U CN 2011201266822U CN 201120126682 U CN201120126682 U CN 201120126682U CN 202023736 U CN202023736 U CN 202023736U
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- China
- Prior art keywords
- screw rod
- pump
- driven
- type double
- bearing
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- 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
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model provides a splitting type double-screw pump which comprises a rear cover box, a pump body, a driving screw rod, a driven screw rod, a bearing, a bearing block, a bush, a sliding bearing and a front cover. The splitting type double-screw pump is characterized in that herringbone gears are respectively arranged at the rear end parts of the driving screw rod and the driven screw rod, and are embedded with each other. The splitting type double-screw pump has the following effects: when the medium containing miniature particles are conveyed, the spiral sections of the driving screw rod and the driven screw rod can not be abraded, and the gap between the spiral sections can not be changed, so that the conveying flow rate is stable, and the service life of the pump is prolonged.
Description
Technical field: the utility model relates to the screw pump that is used for line transportation in a kind of industrial production, particularly a kind of fraction two screw pump.
Background technique: existing line transportation is generally used two screw pump, referring to accompanying drawing 1, it mainly is made up of back top box 1, friction wheel 2, the pump housing 3, active screw rod 4, driven screw rod 5, lining 6, sliding bearing 7, protecgulum 8, bearing support 9, bearing 10, transmission shaft 11.In use, existing two screw pump has following deficiency: contain in the process of molecule medium in conveying, initiatively the spiral profile of screw rod and driven screw rod spiral shell can be subjected to serious abrasion, it not only directly influences flow, make pump not reach the usage requirement of operating mode, and the working life of having reduced pump, increased after service cost.Cause the reason of this problem to be, the two screw pump that has friction wheel is to come the work of driven transmission screw rod by active screw spiral profile, this kind of drive is easy to make the spiral profile of active screw rod and driven screw rod impaired, thereby have influence on the gap of spiral profile, we know, the size of flow is by the gap control of spiral profile, so, spiral profile impaired just directly causes flow to reduce, and reduced the working life of pump.
Summary of the invention: the purpose of this utility model is, at above-mentioned two screw pump when conveying contains the molecule medium, two screw pump makes initiatively screw rod and the abrasion of driven screw spiral profile easily, thereby influence the flow of pump and the deficiency in working life, and propose a kind of when conveying contains the molecule medium, the fraction two screw pump that the pump housing can be not impaired, flow can not reduce.
Can realize the purpose that this practicality is new by following technical proposals, a kind of fraction two screw pump, comprise back top box, the pump housing, active screw rod, driven screw rod, bearing, bearing support, lining, sliding bearing, protecgulum, it is characterized in that, rearward end at active screw rod and driven screw rod is respectively established a herringbone gear, and is chimeric mutually between two herringbone gears.
Be located at herringbone gear and the herringbone gear that is located on the driven screw rod on the active screw rod, the diameter ratio between them is 2: 3.
Effect of the present utility model is: 1, when conveying is contained the molecule medium, initiatively the spiral profile of screw rod and driven screw rod can not be subjected to abrasion, and the gap between them can not change yet, and feed flow is stable, and prolong the working life of pump.This is because this device has substituted friction wheel in the existing pump housing with herringbone gear, initiatively the transmission between screw rod and the driven screw rod is to be undertaken by herringbone gear, initiatively the spiral profile of screw rod and driven screw rod does not contact mutually, so initiatively the spiral profile of screw rod and driven screw rod can not be subjected to abrasion, can make this device feed flow stable, long service life.
The utility model will be further described below in conjunction with drawings and Examples.
Description of drawings:
Accompanying drawing 1 is a two screw pump sectional structure chart of the prior art.
Accompanying drawing 2 is the utility model sectional structure chart;
Accompanying drawing 3 is an A-A place sectional drawing in the accompanying drawing 2.
Embodiment:
Referring to accompanying drawing 2,3, a kind of fraction two screw pump, it mainly is made up of back top box 1, herringbone gear 2, herringbone gear 21, the pump housing 3, active screw rod 4, driven screw rod 5, lining 6, sliding bearing 7, protecgulum 8, bearing support 9, bearing 10, transmission shaft 11.Initiatively screw rod 4 and driven screw rod 5 are located in the cavity of the pump housing 3.Transmission shaft 11 is connected with active screw rod 4.Lining 6 is located at screw rod 4 initiatively and driven screw rod is peripheral and the pump housing 3 between.Herringbone gear 2 is located at the rear end of driven screw rod 5; Herringbone gear 21 is located at the initiatively rear end of screw rod 4, and two 2,21 of herringbone gears are mutual chimeric, and the diameter ratio between them is 3: 2.Sliding bearing 7 is located at the front end of driven screw rod 5.Protecgulum 8, bearing support 9, bearing 10 all are enclosed within on the transmission shaft 11; Protecgulum 8 is connected with the pump housing 3; Bearing support 9 is connected with protecgulum 8.
The operation procedure of this device is: transmission shaft 11 drives initiatively screw rod 4 rotations, and initiatively screw rod 4 relatively rotates by herringbone gear 21 and the driven screw rod 5 of herringbone gear 2 drives.
Claims (2)
1. fraction two screw pump, comprise back top box, the pump housing, active screw rod, driven screw rod, bearing, bearing support, lining, sliding bearing, protecgulum, it is characterized in that, respectively establish a herringbone gear in the rearward end of active screw rod and driven screw rod, chimeric mutually between two herringbone gears.
2. by the described a kind of fraction two screw pump of claim 1, it is characterized in that, the described herringbone gear and the herringbone gear that is located on the driven screw rod that is located on the active screw rod, the diameter ratio between them is 2: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201266822U CN202023736U (en) | 2011-04-23 | 2011-04-23 | Splitting type double-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201266822U CN202023736U (en) | 2011-04-23 | 2011-04-23 | Splitting type double-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023736U true CN202023736U (en) | 2011-11-02 |
Family
ID=44848687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201266822U Expired - Fee Related CN202023736U (en) | 2011-04-23 | 2011-04-23 | Splitting type double-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196718A (en) * | 2014-07-29 | 2014-12-10 | 苏州通力电气有限公司 | Screw-type submerged pump |
| CN106062313A (en) * | 2014-01-27 | 2016-10-26 | 克劳斯联合有限两合公司 | Screw spindle pump |
| US20200370633A1 (en) * | 2017-12-06 | 2020-11-26 | S.P.M. Flow Control, Inc. | Pump gear |
-
2011
- 2011-04-23 CN CN2011201266822U patent/CN202023736U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062313A (en) * | 2014-01-27 | 2016-10-26 | 克劳斯联合有限两合公司 | Screw spindle pump |
| CN104196718A (en) * | 2014-07-29 | 2014-12-10 | 苏州通力电气有限公司 | Screw-type submerged pump |
| CN104196718B (en) * | 2014-07-29 | 2016-10-12 | 苏州海而仕信息科技有限公司 | Screw immersible pump |
| US20200370633A1 (en) * | 2017-12-06 | 2020-11-26 | S.P.M. Flow Control, Inc. | Pump gear |
| US11680631B2 (en) * | 2017-12-06 | 2023-06-20 | Spm Oil & Gas Inc. | Pump gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140423 |