CN203685592U - Secondary pump - Google Patents
Secondary pump Download PDFInfo
- Publication number
- CN203685592U CN203685592U CN201420048919.3U CN201420048919U CN203685592U CN 203685592 U CN203685592 U CN 203685592U CN 201420048919 U CN201420048919 U CN 201420048919U CN 203685592 U CN203685592 U CN 203685592U
- Authority
- CN
- China
- Prior art keywords
- output shaft
- impeller
- level
- secondary output
- differential mechanism
- 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
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Abstract
A secondary pump comprises a pump body. Output shafts are arranged on the pump body and provided with a primary impeller and a secondary impeller. The output shafts include the primary output shaft and the secondary output shaft, the primary output shaft is arranged on the secondary output shaft in a penetrating mode and provided with two extension ends, the primary impeller is fixed to one extension end, the secondary impeller is arranged on the secondary output shaft, a differential device is arranged at the ends, away from the impellers, of the primary output shaft and the secondary output shaft and comprises two sun gears, a planetary gear and a transmission frame, the two sun gears are fixed to the primary output shaft and the secondary output shaft respectively, the planetary gear is arranged on the transmission frame, and the axis of the planetary gear is meshed with the two sun gears. When one impeller is stuck, a motor can be protected, and the service life of one impeller can be approximate to that of the other impeller.
Description
Technical field
The utility model relates to a kind of pump, and specifically, it relates to a kind of two stage pump.
Background technique
Two stage pump is compared with unit pump, two stage pump has two impellers, and therefore the efficiency of two stage pump is higher, and Yang Cheng is also higher, relatively and impeller be greater than two, the flexibility of two stage pump, cost compare is low, and two impellers of two stage pump are under normal circumstances to be fixed on same output shaft, when some impellers wherein because of fault stuck, easily cause burn-down of electric motor, due to two stressed differences of impeller, cause being subject to the working life that resistance is larger shorter in two impellers.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of two stage pump, after one of them impeller is stuck, can protect motor, and working life is longer.
For achieving the above object, the utility model provides following technological scheme: a kind of two stage pump, comprise the pump housing, the pump housing is provided with output shaft, described output shaft is provided with one-level impeller and sencond stage impeller, described output shaft comprises one-level output shaft and secondary output shaft, described one-level output shaft is located on secondary output shaft, and be provided with two extending ends, one-level impeller is fixed therein on an extending end, secondary gear is arranged on secondary output shaft, described one-level output shaft and secondary output shaft are provided with differential mechanism away from one end of impeller, differential mechanism comprises: two sun gears, planetary pinion, gear frame, two described sun gears are separately fixed on one-level output shaft and secondary output shaft, planetary pinion is arranged on gear frame, planetary axis is with intermeshing with two sun gears.
By adopting technique scheme, between output shaft and input shaft, be provided with differential mechanism, output shaft comprises one-level output shaft and secondary output shaft, make two impeller independent operatings, not because one of them stressed motion speed compared with affecting greatly another impeller, secondary output shaft is hollow shaft, one-level output shaft is located in secondary output shaft, ensure the coaxial of two impellers, pass through differential mechanism, when two impellers stressed when identical rotational speed identical, when one of them impeller stressed when larger, can there is relative movement in two sun gears in differential mechanism, make stressed less vane rotary very fast, stressed larger vane rotary is slower, make to reach in working life of two impellers balance, after one of them impeller is stuck, another impeller can work on by differential mechanism, thereby protection motor, the sun gear shape that the utility model adopts is identical, therefore planetary pinion axis must be vertical with sun gear axis.
The utility model is further set to: between described one-level output shaft and secondary output shaft, be sealed and matched.
By adopting technique scheme, by seal arrangement, ensure that pump water in the time of work can not spill from hollow shaft.
The utility model is further set to: described planetary pinion is two, and is located along the same line.
By adopting technique scheme, make gear frame and sun gear stressed evenly
The utility model is further set to: on the described pump housing, have containment vessel, described differential mechanism is positioned at containment vessel.
By adopting technique scheme, protection differential mechanism, prevents that the impurity such as dust from entering in differential mechanism.
Brief description of the drawings
Fig. 1 is the utility model two stage pump embodiment's structural representation.
Reference character: 1, the pump housing; 2, one-level output shaft; 21, one-level impeller; 3, secondary output shaft, 31, sencond stage impeller; 4, sun gear; 5, planetary pinion; 6, gear frame; 7, containment vessel; 8, input shaft.
Embodiment
With reference to Fig. 1, the utility model two stage pump embodiment is described further.
For achieving the above object, the utility model provides following technological scheme: a kind of two stage pump, comprise the pump housing 1, the pump housing 1 is provided with output shaft, described output shaft is provided with one-level impeller 2 and sencond stage impeller 31, described output shaft comprises one-level output shaft 2 and secondary output shaft 3, described one-level output shaft 2 is located on secondary output shaft 3, and be provided with two extending ends, one-level impeller 2 is fixed therein on an extending end, secondary gear is arranged on secondary output shaft 3, described one-level output shaft 2 is provided with differential mechanism with secondary output shaft 3 away from one end of impeller, differential mechanism comprises: two sun gears 4, planetary pinion 5, gear frame 6, two described sun gears 4 are separately fixed on one-level output shaft 2 and secondary output shaft 3, planetary pinion 5 is arranged on gear frame 6, the axis of planetary pinion 5 is with intermeshing with two sun gears 4.
By adopting technique scheme, between output shaft and input shaft 8, be provided with differential mechanism, output shaft comprises one-level output shaft 2 and secondary output shaft 3, make two impeller independent operatings, not because one of them stressed motion speed compared with affecting greatly another impeller, secondary output shaft 3 is hollow shaft, one-level output shaft 2 is located in secondary output shaft 3, ensure the coaxial of two impellers, pass through differential mechanism, when two impellers stressed when identical rotational speed identical, when one of them impeller stressed when larger, can there is relative movement in two sun gears 4 in differential mechanism, make stressed less vane rotary very fast, stressed larger vane rotary is slower, make to reach in working life of two impellers balance, after one of them impeller is stuck, another impeller can work on by differential mechanism, thereby protection motor, sun gear 4 shapes that the utility model adopts are identical, therefore planetary pinion 4 axis must be vertical with sun gear 4 axis.
Between described one-level output shaft 2 and secondary output shaft 3, be sealed and matched.
By adopting technique scheme, by seal arrangement, ensure that pump water in the time of work can not spill from hollow shaft.
Described planetary pinion 5 is two, and is located along the same line.
By adopting technique scheme, make gear frame 6 and sun gear 4 stressed evenly
On the described pump housing 1, have containment vessel 7, described differential mechanism is positioned at containment vessel 7.
By adopting technique scheme, protection differential mechanism, prevents that the impurity such as dust from entering in differential mechanism.
Claims (4)
1. a two stage pump, comprise the pump housing, the pump housing is provided with output shaft, described output shaft is provided with one-level impeller and sencond stage impeller, it is characterized in that: described output shaft comprises one-level output shaft and secondary output shaft, described one-level output shaft is located on secondary output shaft, and be provided with two extending ends, one-level impeller is fixed therein on an extending end, secondary gear is arranged on secondary output shaft, described one-level output shaft and secondary output shaft are provided with differential mechanism away from one end of impeller, differential mechanism comprises: two sun gears, planetary pinion, gear frame, two described sun gears are separately fixed on one-level output shaft and secondary output shaft, planetary pinion is arranged on gear frame, planetary axis is with intermeshing with two sun gears.
2. two stage pump according to claim 1, is characterized in that: between described one-level output shaft and secondary output shaft, be sealed and matched.
3. two stage pump according to claim 2, is characterized in that: described planetary pinion is two, and is located along the same line.
4. two stage pump according to claim 3, is characterized in that: on the described pump housing, have containment vessel, described differential mechanism is positioned at containment vessel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420048919.3U CN203685592U (en) | 2014-01-25 | 2014-01-25 | Secondary pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420048919.3U CN203685592U (en) | 2014-01-25 | 2014-01-25 | Secondary pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203685592U true CN203685592U (en) | 2014-07-02 |
Family
ID=51007500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420048919.3U Expired - Fee Related CN203685592U (en) | 2014-01-25 | 2014-01-25 | Secondary pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203685592U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114635856A (en) * | 2022-03-11 | 2022-06-17 | 烟台龙港泵业股份有限公司 | High-temperature high-pressure vertical pipeline pump |
KR102615546B1 (en) * | 2023-06-28 | 2023-12-19 | 윤성업 | Horizontal centrifugal pump having two axes with different rotational speeds |
-
2014
- 2014-01-25 CN CN201420048919.3U patent/CN203685592U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114635856A (en) * | 2022-03-11 | 2022-06-17 | 烟台龙港泵业股份有限公司 | High-temperature high-pressure vertical pipeline pump |
KR102615546B1 (en) * | 2023-06-28 | 2023-12-19 | 윤성업 | Horizontal centrifugal pump having two axes with different rotational speeds |
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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: 20140702 Termination date: 20160125 |
|
EXPY | Termination of patent right or utility model |