CN201297367Y - A flow-variable impeller and a gear box applying the impeller - Google Patents
A flow-variable impeller and a gear box applying the impeller Download PDFInfo
- Publication number
- CN201297367Y CN201297367Y CNU2008202037208U CN200820203720U CN201297367Y CN 201297367 Y CN201297367 Y CN 201297367Y CN U2008202037208 U CNU2008202037208 U CN U2008202037208U CN 200820203720 U CN200820203720 U CN 200820203720U CN 201297367 Y CN201297367 Y CN 201297367Y
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- impeller
- blade
- flow
- dividing plate
- flow controller
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Abstract
The utility model relates to a flow-variable impeller, which comprises a front disk arranged inside a pump casing, a rear disk and blades; wherein the rear disk is arranged on a rotating shaft; the blades are sheathed with a throttler; the throttler comprises a partition plate; the partition plate is provided with a notch with the thickness and shape adapted to the blades; the blades is perforated into the notches; the partition plate is connected with a control device and can move back and forth under the driving of the control device in the axial direction of the blades; and the blades are divided into an effective working area and an invalid working area by the partition plate. The flow-variable impeller changes the structure of the impeller and controls the flow through the horizontal movement of the partition plate inside the pump casing. The design has the advantages of simple structure, low manufacturing cost, stepless adjustment of the flow range to a great extent, good energy saving effect and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of impeller of unsteady flow amount, and pump and the speed changer of using this unsteady flow amount impeller.
Background technique
Ubiquitous use pump during we work, live, its effect are to change the mechanical energy that prime mover rotates the pressure energy and the kinetic energy of fluid into, thereby make fluid reach mobile purpose.Even also be that the reverse of pump is used as the water turbine in the hydroelectric generator.And impeller wherein is to realize that mechanical energy is converted to the critical piece of fluid energy; It is responsible for prime mover is dragged the kinetic energy of impeller rotation, thereby makes fluid obtain pressure energy and kinetic energy by the acting of blade convection cell.
And in use we often need change the application demand that the flow of pump gears to actual circumstances.The mode that changes the flow of pump generally has: modes such as gateway valve regulated, rotational speed regulation and change pump structure.But some problems that they are all deposited in application: can produce bigger energy loss and be easy to generate cavitation as gateway valve regulated mode; The rotational speed regulation mode generally need be used frequency variator, and its price is higher and the loss of electric energy conversion arranged; The situation that all there is complex structure in the regulative mode that changes pump structure, breaks down easily in current known designs, regulation range is little etc.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of simple in structure, efficiency is high, flow adjustment range is wide, easy to maintenance unsteady flow impeller and uses the speed changer of unsteady flow impeller.
The technological scheme that the utility model adopted is:
A kind of unsteady flow impeller, this impeller comprises shroud, hub disk and the blade that is installed in the pump case, hub disk is installed in the rotating shaft, be arranged with flow controller on the blade, described flow controller comprises dividing plate, offers the fluting that thickness and shape with blade adapt on the dividing plate, blade penetrates in the fluting, dividing plate is connected with controlling device, and described dividing plate can be axially the moving forward and backward of blade under controlling device drives, and dividing plate is divided into effective working area and non-productive work district with blade.
Further improvement of the utility model, the periphery of described dividing plate be provided be folded to the non-productive work district and the non-productive work district of blade and hub disk be enclosed in the barrel-shaped barrel of hollow, the rear end of barrel-shaped barrel offers axis hole, and this axis hole and rotating shaft are by the Sealing slipper seal.
The utility model also relates to a kind of speed changer that utilizes this unsteady flow impeller to make, and it comprises the pump case of sealing, and the left and right sides of described pump case inner chamber is provided with main impeller and output impeller, and this main impeller is the unsteady flow impeller that flow controller is installed.
The beneficial effects of the utility model are: by changing the structure of impeller, utilize the control of carrying out flow that moves forward and backward of the dividing plate that is loaded on pump case inside, the design is simple in structure, low cost of manufacture, its range of flow can realized step-less adjustment, good energy-conserving effect, low cost of manufacture by a relatively large margin; Further, the utility model the periphery of dividing plate be provided be folded to the non-productive work district and the non-productive work district of blade and hub disk be enclosed in the barrel-shaped barrel of hollow, with flow controller be designed to seal barrel-shaped, prevent when operation invalid blade inner fluid produce disturbance, the efficient of impeller and stability etc. are exerted an influence.
In addition, the speed changer that utilizes this unsteady flow impeller to make, it is installed in main impeller and output impeller in the pump case, main impeller utilizes flow controller to control, as long as regulate the flow of unsteady flow impeller, just can change the rotating speed of output impeller during work, realize the adjustable continuously of rotating speed, resistance in the time of effectively reducing fluid and flow is increased work efficiency.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural principle exploded view of unsteady flow impeller;
Fig. 2 is the structural principle constitutional diagram of unsteady flow impeller;
Fig. 3 is a unsteady flow impeller principle sectional view;
Fig. 4 is the structural representation of barrel-shaped flow controller;
Fig. 5 is the unsteady flow blade wheel structure schematic representation of barrel-shaped flow controller;
Fig. 6 is the structural representation of annular tubbiness flow controller;
Fig. 7 is the unsteady flow blade wheel structure schematic representation of shape tubbiness flow controller;
Fig. 8 is the enforcement figure of unsteady flow impeller as the unsteady flow pump;
Fig. 9 is the side view of unsteady flow pump;
Figure 10 is the enforcement figure of unsteady flow impeller as speed changer.
Embodiment
Referring to figs. 1 through 3, Fig. 8, Fig. 9, a kind of unsteady flow impeller, this impeller comprises shroud 21, hub disk 22 and the blade 23 that is installed in the pump case 1, hub disk 22 is installed in the rotating shaft 31, be arranged with flow controller on the blade 23, described flow controller comprises dividing plate 41, offer the fluting 42 that thickness and shape with blade 23 adapt on the dividing plate 41, blade 23 penetrates in the fluting 42, dividing plate 41 is connected with controlling device, described dividing plate 41 can be axially the moving forward and backward of blade 23 under controlling device drives, and dividing plate 41 is divided into effective working area 231 and non-productive work district 232 with blade 23.
For receded disk impeller, if its under all identical situation of the various parameters of diameter, length of blade, tortuosity, thickness or the like, the width of blade has determined impeller can produce the size of flow, its width of blade is directly proportional with flow.The flow that the wide more impeller of width of blade can produce is also big more.The utility model makes the width of its energy adjusting vane, thereby produces the unsteady flow impeller that can regulate the impeller flow by the improvement to receded disk impeller.Wherein core content is a flow controller.Have the flutings 42 identical with position with blade 23 size on dividing plate 41, blade 23 can be inserted in the dividing plate 41 42 from slotting, dividing plate 41 can slip before and after doing axially on the blade between shroud and hub disk.Blade 23 is divided into effective working area 231 and non-productive work district 232 by dividing plate 41 on width like this, and fluid can only flow through the blade of dividing plate 41 front ends during wheel rotation; And the blade of dividing plate 41 rear ends is blocked, and fluid can't flow into blade and be inoperative.
When impeller under the constant situation of rotating speed: when dividing plate 41 slided backward, the width of the effective working area 231 of blade increased, the also corresponding increase of fluid flow; When dividing plate 41 during to front slide, the width of the effective working area 231 of blade reduces, and fluid flow also reduces.When flow controller slided into foremost fully, blade was blocked fully, and the width of the effective working area of blade this moment is zero, and fluid can not pass through blade, even at this moment impeller is still rotating, but did not have fluid to flow through, and made whole impeller be in unloaded state.
The characteristic of unsteady flow impeller is exactly by flow controller effective working area width of blade to be regulated, and makes impeller under the constant situation of rotating speed, and fluid flow can be regulated in the 0%-100% scope continuously.
Further optimal way, though aforesaid flow controller can be separated blade, but the fluid that flows out from effective working area has the non-productive work district that is partly refluxed to the rear end, thereby when rotating, can produce certain disturbance, the efficient of impeller and stability etc. are exerted an influence the fluid that refluxes.Therefore the design the periphery of dividing plate 41 be provided be folded to the non-productive work district and the non-productive work district of blade and hub disk 22 be enclosed in the barrel-shaped barrel 43 of hollow, flow controller is designed to barrel-shaped, with reference to Fig. 4, shown in Figure 5, the rear end of barrel-shaped barrel 43 offers axis hole 44, and this axis hole 44 passes through the Sealing slipper seal with rotating shaft 31.Barrel-shaped like this flow controller just can complete fluid pill contact with the blade in non-productive work district, prevents that the blade in non-productive work district from producing disturbance to the fluid that refluxes when rotating.As shown in Figure 8, described controlling device comprises adjustable lever 51 and propulsion device 52, and propulsion device 52 is connected with flow controller by bearing 53, and an end of adjustable lever 51 is fixed on the propulsion device 52, and the other end stretches out the outside of pump case 1; In addition, described controlling device also can be slidingly connected with the periphery of the flow controller of tubbiness, regulates its axial push-in stroke.
The characteristics of barrel-shaped flow controller are: flow controller is separated blade, is effective working area near the front end of shroud, is the non-productive work district near the rear end of hub disk, and flow controller is reduced by hub disk flow when shroud advances.So barrel-shaped flow controller also can claim the forward pushing type flow controller.
Another kind of mode of execution, with reference to Fig. 6, shown in Figure 7, the periphery of described dividing plate 41 be provided be folded to the non-productive work district and the non-productive work district of blade and shroud 21 be enclosed in annular tube wall.Flow controller is designed to annular tubbiness.Its annular portion clips the non-productive work district of shroud and blade.Dividing plate then is positioned at the rear portion, and fluid bit stream is from central division gone into and flowed out through the effective working area near hub disk.The non-productive work district of its same energy fluid pill and blade.This flow controller is separated blade, is the non-productive work district of blade near the front end of shroud, is effective working area near the rear end of hub disk, and dividing plate is reduced by shroud flow when hub disk advances.So should also can claim the back-pushed flow controller by annular tubbiness flow controller.
Present technique can be used in the middle of various centrifugal pumps and the blower fan, realizes the adjustable continuously of flow under the situation that does not change prime mover rotating speed, and can realize No Load Start.It can also be reversed simultaneously and use, be rotated by the fluid impeller that flows, it can be according to the variation of hydrodynamic pressure and institute's bringing onto load size, and the rotating speed of the size adjustment impeller by regulating flow is stabilized on a certain rotating speed it.It can be used for being used for the stable generator rotating speed in the middle of waterpower and the wind-power electricity generation.
Utilize the function of the unsteady flow of unsteady flow impeller, can also make the speed changer of stepless speed regulation, with reference to shown in Figure 10, it is combined in the pump case by two impeller sets forms, it comprises the pump case 6 of sealing, the left and right sides of described pump case 6 inner chambers is provided with main impeller 7 and output impeller 8, and this main impeller 7 is for being equipped with the unsteady flow impeller of flow controller 71.During work, the input rotatory force drives the fluid that main impeller 7 rotates and the promotion pump case is interior and flows, the fluid in main impeller 7 center portions passes through impeller again after the centrifugal outflow of blade outer rim, after flowing through the blade of output impeller 8, the outer rim of output impeller 8 adds to the center more then, fluid flows back to circulation of formation in the main impeller 7 after flowing out output impeller, and output impeller 8 power that rotates under the promotion of fluid is also rotated in this process.As long as regulate the flow of unsteady flow impeller, just can change the rotating speed of output impeller like this, realize the adjustable continuously of rotating speed.The design also can use the unsteady flow impeller with main impeller and output impeller, and it is very big that the scope of its variable-speed just becomes, high working efficiency.This impeller speed changer can be used in the speed changer and other equipment that needs speed change of automobile; And greatly reduce the cost of production of speed changer.
Further, described pump case 6 inner chambers are annular chamber 61, make the more reasonable structure of pump case, meet hydrokinetics more.
Further, the design's main impeller 7, output impeller 8 are to have the circular arc that the shape with annular chamber 61 adapts, the shroud of the shroud of main impeller 7 and output impeller 8 is respectively equipped with the relative C shape chamber 72,82 of opening, the fluid of the inside cavity that is surrounded in two relative C shape chambeies during work need not participate in flow circuit, since two relative C shape chambeies shared space bigger, more smooth and easy when when work, fluid circulated between main impeller and the formed runner of output impeller, make the more reasonable structure of speed changer.
The above be the utility model preferred embodiment, it does not constitute the restriction to the utility model protection domain, so long as realize that with essentially identical means the purpose of this utility model all should belong to protection domain of the present utility model.
Claims (8)
1. unsteady flow impeller, this impeller comprises the shroud (21) that is installed in the pump case (1), hub disk (22) and blade (23), hub disk (22) is installed in the rotating shaft (31), it is characterized in that: blade is arranged with flow controller on (23), described flow controller comprises dividing plate (41), offer on the dividing plate (41) and the thickness of blade (23) and the fluting (42) that shape adapts, blade (23) penetrates in the fluting (42), dividing plate (41) is connected with controlling device, described dividing plate (41) can be axially the moving forward and backward of blade (23) under controlling device drives, and dividing plate (41) is divided into effective working area (231) and non-productive work district (232) with blade (23).
2. a kind of unsteady flow impeller according to claim 1, it is characterized in that: the periphery of described dividing plate (41) be provided be folded to the non-productive work district and the non-productive work district of blade and hub disk (22) be enclosed in the barrel-shaped barrel of hollow (43), the rear end of barrel-shaped barrel (43) offers axis hole (44), and this axis hole (44) passes through the Sealing slipper seal with rotating shaft (31).
3. a kind of unsteady flow impeller according to claim 2, it is characterized in that: described controlling device comprises adjustable lever (51) and propulsion device (52), propulsion device (52) is connected with flow controller by bearing (53), and an end of adjustable lever (51) is fixed on the propulsion device (52).
4. a kind of unsteady flow impeller according to claim 1 is characterized in that: the periphery of described dividing plate (41) be provided be folded to the non-productive work district and the non-productive work district of blade and shroud (21) be enclosed in annular tube wall.
5. speed changer that uses claim 1,2 or 3 described unsteady flow impellers, it is characterized in that: it comprises the pump case (6) of sealing, the left and right sides of described pump case (6) inner chamber is provided with main impeller (7) and output impeller (8), and this main impeller (7) is for being equipped with the unsteady flow impeller of flow controller (71).
6. a kind of speed changer according to claim 5 is characterized in that: described pump case (6) inner chamber is annular chamber (61).
7. a kind of speed changer according to claim 6, it is characterized in that: described main impeller (7), output impeller (8) have the circular arc that the shape with annular chamber (61) adapts, and the shroud of the shroud of main impeller (7) and output impeller (8) is respectively equipped with the relative C shape chamber (72,82) of opening.
8. according to claim 5,6 or 7 described a kind of speed changers, it is characterized in that: described output impeller (8) is similarly the unsteady flow impeller that flow controller is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202037208U CN201297367Y (en) | 2008-11-16 | 2008-11-16 | A flow-variable impeller and a gear box applying the impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202037208U CN201297367Y (en) | 2008-11-16 | 2008-11-16 | A flow-variable impeller and a gear box applying the impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297367Y true CN201297367Y (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202037208U Expired - Lifetime CN201297367Y (en) | 2008-11-16 | 2008-11-16 | A flow-variable impeller and a gear box applying the impeller |
Country Status (1)
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| CN (1) | CN201297367Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606706A (en) * | 2011-01-20 | 2012-07-25 | 通用汽车环球科技运作有限责任公司 | Starting device having a throttle plate |
| CN102966714A (en) * | 2012-12-07 | 2013-03-13 | 湖南海润电气有限公司 | High-slip hydraulic coupler with multiple flow passages |
| CN103075502A (en) * | 2013-01-14 | 2013-05-01 | 长治市潞安合力机械有限责任公司 | Bi-directional blade wheel |
-
2008
- 2008-11-16 CN CNU2008202037208U patent/CN201297367Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606706A (en) * | 2011-01-20 | 2012-07-25 | 通用汽车环球科技运作有限责任公司 | Starting device having a throttle plate |
| CN102606706B (en) * | 2011-01-20 | 2015-01-14 | 通用汽车环球科技运作有限责任公司 | Starting device having a throttle plate |
| CN102966714A (en) * | 2012-12-07 | 2013-03-13 | 湖南海润电气有限公司 | High-slip hydraulic coupler with multiple flow passages |
| CN102966714B (en) * | 2012-12-07 | 2016-01-06 | 湖南海润电气有限公司 | A kind of high slippage fluid coupling with multiple flow passages |
| CN103075502A (en) * | 2013-01-14 | 2013-05-01 | 长治市潞安合力机械有限责任公司 | Bi-directional blade wheel |
| CN103075502B (en) * | 2013-01-14 | 2016-02-17 | 长治市潞安合力机械有限责任公司 | Bi-directional blade wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20081116 |