CN203146350U - Low-lift vertical planetary gear reducing axial flow pump - Google Patents
Low-lift vertical planetary gear reducing axial flow pump Download PDFInfo
- Publication number
- CN203146350U CN203146350U CN 201320120037 CN201320120037U CN203146350U CN 203146350 U CN203146350 U CN 203146350U CN 201320120037 CN201320120037 CN 201320120037 CN 201320120037 U CN201320120037 U CN 201320120037U CN 203146350 U CN203146350 U CN 203146350U
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- planetary gear
- impeller
- hub body
- shaft
- water
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Abstract
A low-lift vertical planetary gear reducing axial flow pump mainly comprises a water pump input shaft (12), an impeller shaft (9) and a planetary gear reducing mechanism (10), wherein the planetary gear reducing mechanism (10) comprises a gear ring (20), a sun gear (21), a planetary gear (22) and a planetary rack (24), the gear ring (20) is fixedly connected with a mounting rack (25), the sun gear (21) is fixedly arranged on the lower end portion of the water pump input shaft (12), the planetary gear (22) is respectively meshed with the sun gear (21) and the gear ring (20), a planetary gear shaft (23) is arranged in the center of the planetary gear (22) and fixedly connected with the planetary rack (24), and the planetary rack (24) is provided with an output shaft sleeve (11) which is connected with the impeller shaft (9) through keys. Direct transmission is performed between the low-lift vertical planetary gear reducing axial flow pump and a matched electromotor, indirect transmission is performed between the water pump input shaft and the impeller shaft, under the condition that rotating speed of the matched electromotor is high, low water pump impeller rotating speed can be achieved, and therefore the low-lift vertical planetary gear reducing axial flow pump can operate in an efficient area under the condition of a low lift, and efficiency can be improved by more than 10%.
Description
Technical field
The utility model relates to a kind of medium-sized axial-flow pump, is specifically related to low lift vertical-type planetary gear reduction axial-flow pump, belongs to the hydraulic machinery technical field.
Background technique
That the vertical axial-flow pump assembly has is simple in structure, install maintenance convenient, manufacture and design advantage such as maturation, in the pump station engineering in many fields such as water resources allotment, urban flood defence and water environment improvement, obtained using widely.All adopt direct transmission between the water pump of the vertical axial-flow pump assembly of using and the motor at present, water pump equates with the rotating speed of motor.This kind of drive is simple in structure, uses very extensive.But less for the unit design discharge, rated lift is lower and the lower-powered medium-sized axial-flow pump unit of auxiliary motor, from the requirement of pump selection, water pump needs just can operate in efficient district than operation under the slow-speed of revolution; From structural characteristics and the Specifeca tion speeification of motor product, lower-powered motor is owing to arranging that less electrode winding causes its rotating speed higher.In this case, if adopt direct transmission, then pump rotary speed can only be identical with motor speed, and water pump will can not move in efficient district because rotating speed is higher.For example: certain pumping plant vertical axial-flow pump assembly unit design discharge is 7m
3/ s, rated lift are that 1m, H-Max are 2.1m, adopt conventional direct transmission between water pump and the motor.Should be 320kW according to calculating necessary electromotor power, but be subjected to the restriction of product structure characteristic, the minimum speed of this type of motor can only be accomplished 245r/min.Under direct drive condition, it is that 1420mm, pump rotary speed are that 245r/min and motor speed are the type selecting scheme of 245r/min that this pumping plant can only adopt impeller diameter, and its characteristic curve of pump as shown in Figure 1.Can see, only be stain place among the 69.5%(figure in the pump efficiency of design conditions (lift is that rated lift, flow are design discharge)), substantial deviation high efficient area.
The model utility content
The purpose of this utility model provides a kind of low lift vertical-type planetary gear reduction axial-flow pump, the utility model compact structure, easy for installation, realize indirect drive between axial-flow pump and the motor, reduce the rotating speed of vertical-type axial-flow pump, make it under the condition of low lift, operate in efficient district.
The purpose of this utility model is achieved through the following technical solutions, a kind of low lift vertical-type planetary gear reduction axial-flow pump comprises water pump water inlet oviduct, Discharging bent-tube, planetary gear reducing mechanism, water pump input shaft, impeller shaft, impeller, impeller hub body, diffuser and stator hub body; Described impeller shaft sets gradually described stator hub body, impeller hub body from top to bottom, on the described stator hub body described diffuser is set, and on the described impeller hub body described impeller is set; Be provided with planetary gear reducing mechanism between water pump input shaft and the impeller shaft, planetary gear reducing mechanism is by scaffold and stator hub body Bolt Connection; Planetary gear reducing mechanism comprises gear ring, sun gear, planet wheel and planet carrier; Gear ring and scaffold are fixedly connected; Sun gear is fixedly installed on water pump input shaft underpart; Planet wheel is meshed with sun gear and gear ring respectively; The planet wheel center arranges planet wheel shaft, and planet wheel shaft and planet carrier link; Planet carrier is provided with output sleeve, output sleeve and described impeller shaft key connecting, output sleeve and described water pump input shaft, impeller shaft coaxial line.
Described planetary gear reducing mechanism water outlet side is provided with the water outlet fair water cone.
Be provided with tapered roller bearing in the described stator hub body.
The longitudinal section of described stator hub body is for trapezoidal.
Compared with prior art, the utlity model has following technique effect: first, the shape that the stator hub body is designed to progressively spread, in the outlet of axial-flow pump diffuser one planet reduction gears mechanism is set, and fit together with the stator hub body, its weight is delivered to pump shell and finally is delivered to foundation for water pumps by diffuser.Second, the water pump spindle of conventional axial-flow pump is divided into two sections of input shaft and impeller shafts, carry out indirect drive by planetary gear reducing mechanism between diaxon: the output sleeve of water pump input shaft and planetary gear reducing mechanism is coaxial line, input shaft connects with motor reel by coupling, output sleeve and impeller shaft keyed jointing.The 3rd, in the stator hub body, except arranging routinely the guide bearing, set up tapered roller bearing, in order to bear the end thrust of water pump.The 4th, at the planetary gear reducing mechanism water outlet side water outlet fair water cone is set, so that the current that should locate are more smooth smooth-going.The 5th, the utility model compact structure is reasonable, and is novel ingenious, is easy to realize.Compare with adopting the conventional vertical medium-sized axial-flow pump of low lift, the pump efficiency of design conditions can improve more than 10%.
Description of drawings
Fig. 1 is the characteristic curve of pump figure of prior art axial-flow pump;
Fig. 2 is the structural representation of the utility model low lift vertical-type planetary gear reduction axial-flow pump;
Fig. 3 is the structure for amplifying schematic representation of the planetary gear reducing mechanism of the utility model low lift vertical-type planetary gear reduction axial-flow pump;
Fig. 4 is the characteristic curve of pump figure of the utility model low lift vertical-type planetary gear reduction axial-flow pump;
Wherein: 1 water pump water inlet oviduct, 2 water inlet fair water cones, 3 impellers, 4 impeller hub bodies, 5 diffusers, 6 stator hub bodies, 7 guide bearings, 8 tapered roller bearings, 9 impeller shafts, 10 planetary gear reducing mechanisms, 11 output sleeves, 12 water pump input shafts, 13 water outlet fair water cones, 14 Discharging bent-tubes, 15 packing seals, 16 coupling, 17 motor shafts, 18 water pump beams, 19 motor, 20 gear rings, 21 sun gears, 22 planet wheels, 23 planet wheel shafts, 24 planet carriers, 25 scaffolds.
Embodiment
As Fig. 2, shown in Figure 3, a kind of low lift vertical-type planetary gear reduction axial-flow pump comprises water pump water inlet oviduct 1, water inlet fair water cone 2, water outlet fair water cone 13, Discharging bent-tube 14, water pump input shaft 12, impeller shaft 9, impeller 3, impeller hub body 4, diffuser 5, stator hub body 6 and planetary gear reducing mechanism 10.
Be provided with planetary gear reducing mechanism 10 between water pump input shaft 12 and the impeller shaft 9.Planetary gear reducing mechanism 10 is by scaffold 25 and stator hub body 6 Bolt Connection.
Planetary gear reducing mechanism 10 comprises gear ring 20, sun gear 21, planet wheel 22 and planet carrier 24.Sun gear 21 is fixedly installed on water pump input shaft 12 ends.Planet wheel 22 is meshed with sun gear 21 and gear ring 20 respectively.Gear ring 20 is fixedly connected with scaffold 25.Planet wheel 22 is installed on the planet carrier 24 by planet wheel shaft 23, and planet wheel shaft 23 is slidingly connected with planet carrier 24.Planet wheel 22 centers arrange planet wheel shaft 23, and planet wheel shaft 23 links with planet carrier 24.Planet carrier 24 is provided with output sleeve 11, output sleeve 11 and impeller shaft 9 key connecting, output sleeve 11 and water pump input shaft 12, impeller shaft 9 coaxial lines.
Planetary gear reducing mechanism 10 water outlet sides are provided with water outlet fair water cone 13.At the planetary gear reducing mechanism water outlet side water outlet fair water cone is set, so that the current that should locate are more smooth smooth-going.
Water pump input shaft 12 passes water pump water outlet bend pipe 14, and at the place of passing packing seal 15 is set.Be provided with coupling 16 between the motor reel 17 of water pump input shaft 12 and motor 19.Water pump beam 18 is used for supporting axial-flow pump.
The water pump spindle of conventional axial-flow pump is divided into two sections of input shaft and impeller shafts, carry out indirect drive by planetary gear reducing mechanism between diaxon: the output sleeve of water pump input shaft and planetary gear reducing mechanism is coaxial line, input shaft connects with motor reel by coupling, output sleeve and impeller shaft keyed jointing.Motor drives pump input shaft rotates, and drives the planetary gear reducing mechanism running, and then drives impeller.
With the pumping plant described in the background technique if adopt the utility model, then can adopt with the rotating speed of water pump vane be down to 125r/min, impeller diameter is that 1800mm and auxiliary motor rotating speed are the type selecting scheme of 735 r/min, its performance curve is seen Fig. 4.As can see from Figure 4, the design conditions of water pump (lift is that rated lift, flow are design discharge) are positioned at efficient district, and pump efficiency can reach stain place among the 83.5%(figure).Compare with adopting the conventional vertical medium-sized axial-flow pump of low lift, the pump efficiency of design conditions can improve more than 10%.
Claims (4)
1. a low lift vertical-type planetary gear reduction axial-flow pump comprises water pump water inlet oviduct (1), water inlet fair water cone (2), impeller (3), impeller hub body (4), diffuser (5), stator hub body (6), guide bearing (7), impeller shaft (9), water pump input shaft (12), water outlet fair water cone (13), Discharging bent-tube (14) and packing seal (15); Described impeller shaft (9) sets gradually described stator hub body (6), impeller hub body (4) from top to bottom, described diffuser (5) is set on the described stator hub body (6), described impeller (3) is set on the described impeller hub body (4), it is characterized in that, be provided with planetary gear reducing mechanism (10) between water pump input shaft (12) and the impeller shaft (9), planetary gear reducing mechanism (10) is by scaffold (25) and stator hub body (6) Bolt Connection; Planetary gear reducing mechanism (10) comprises gear ring (20), sun gear (21), planet wheel (22) and planet carrier (24); Gear ring (20) is fixedly connected with scaffold (25); Sun gear (21) is fixedly installed on water pump input shaft (12) underpart; Planet wheel (22) is meshed with sun gear (21) and gear ring (20) respectively; Planet wheel (22) center arranges planet wheel shaft (23), and planet wheel shaft (23) links with planet carrier (24); Planet carrier (24) is provided with output sleeve (11), output sleeve (11) and described impeller shaft (9) key connecting, output sleeve (11) and described water pump input shaft (12), impeller shaft (9) coaxial line.
2. low lift vertical-type planetary gear reduction axial-flow pump according to claim 1 is characterized in that, described planetary gear reducing mechanism (10) water outlet side is provided with water outlet fair water cone (13).
3. low lift vertical-type planetary gear reduction axial-flow pump according to claim 1 is characterized in that, is provided with tapered roller bearing (8) in the described stator hub body (6).
4. low lift vertical-type planetary gear reduction axial-flow pump according to claim 3 is characterized in that the longitudinal section of described stator hub body (6) is for trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120037 CN203146350U (en) | 2013-03-18 | 2013-03-18 | Low-lift vertical planetary gear reducing axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120037 CN203146350U (en) | 2013-03-18 | 2013-03-18 | Low-lift vertical planetary gear reducing axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146350U true CN203146350U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320120037 Expired - Fee Related CN203146350U (en) | 2013-03-18 | 2013-03-18 | Low-lift vertical planetary gear reducing axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147995A (en) * | 2013-03-18 | 2013-06-12 | 扬州大学 | Low-lift vertical planetary gear reduction axial flow pump |
| CN111888552A (en) * | 2020-07-06 | 2020-11-06 | 河海大学 | Single-axis variable-speed two-stage asynchronous heart pump with difference iteration curve flow channel and use method |
-
2013
- 2013-03-18 CN CN 201320120037 patent/CN203146350U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147995A (en) * | 2013-03-18 | 2013-06-12 | 扬州大学 | Low-lift vertical planetary gear reduction axial flow pump |
| CN111888552A (en) * | 2020-07-06 | 2020-11-06 | 河海大学 | Single-axis variable-speed two-stage asynchronous heart pump with difference iteration curve flow channel and use method |
| CN111888552B (en) * | 2020-07-06 | 2021-05-18 | 河海大学 | Single-axis variable-speed two-stage asynchronous heart pump with difference iteration curve flow channel and use method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20160318 |