CN216306314U - Water pump blade adjusting mechanism - Google Patents
Water pump blade adjusting mechanism Download PDFInfo
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- CN216306314U CN216306314U CN202122160644.5U CN202122160644U CN216306314U CN 216306314 U CN216306314 U CN 216306314U CN 202122160644 U CN202122160644 U CN 202122160644U CN 216306314 U CN216306314 U CN 216306314U
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- water pump
- assembly
- rotating shaft
- pump blade
- rotating
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Abstract
The utility model discloses a water pump blade adjusting mechanism which comprises an oil cylinder assembly, a hub, an operating disc, a connecting assembly, a shifting fork and water pump blades, wherein the oil cylinder assembly is arranged on the hub; one end of the water pump blade is arranged on the hub through a bearing; the water pump blade is connected with the shifting fork; a rotating vane component is arranged in the oil cylinder assembly; a rotating shaft is arranged in the rotating blade assembly; the oil cylinder assembly drives the operating disc to rotate through the rotating shaft, and the operating disc drives the shifting fork and the water pump blade to rotate through the connecting component. According to the utility model, pressure oil is conveyed to the oil cylinder assembly through the oil receiver, the rotating shaft of the rotating blade component in the oil cylinder assembly is driven to rotate, the operating disc arranged at the end part of the rotating shaft is driven to act, the shifting fork is driven to rotate through the sliding block pin and the sliding block on the operating disc, and the shifting fork is connected with the blades through the pins, so that the angle adjustment of the blades of the water pump is realized, and the interference of some components and the inner cavity of the hub is avoided.
Description
Technical Field
The utility model relates to a water pump in hydraulic mechanical equipment, in particular to a water pump blade adjusting mechanism.
Background
The impeller part is an important core part of the water pump, and the adjusting mechanism in the impeller part is used for realizing the blade angle adjustment of the water pump and ensuring that the water pump can stably operate under a better working condition all the time.
At present, an impeller part of a full-regulation water pump generally adopts an oil cylinder and hub integrated structure, an oil receiver conveys pressure oil to the oil cylinder, a piston is driven to move axially to drive a piston rod, and blades are rotated through a movement mechanism consisting of an operating frame, an ear handle, a connecting rod and a rotating arm which are arranged at the end part of the piston rod.
For a large pump, particularly for an extra-large water pump with an impeller with the diameter of more than 4m, calculation data show that the blade rotating torque is large, the mechanism in the prior art has the defect of insufficient adjusting torque, and the requirement can be met only by increasing the diameter of an oil cylinder or increasing the pressure of a hydraulic system. The axial moving type oil cylinder needs to be converted through a connecting rod mechanism, and then the rotation of the blades can be realized. And the link mechanism has more parts, and has the risk of interfering with the hub due to the constraint of the hub space.
How to provide one kind when realizing water pump blade angle regulation, avoid producing the adjustment mechanism who interferes with the wheel hub inner chamber, become the technical problem that needs to solve urgently.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a water pump blade adjusting mechanism which can avoid interference between some components and the inner cavity of a hub while realizing the angle adjustment of water pump blades.
The technical scheme is as follows: the water pump blade adjusting mechanism comprises an oil cylinder assembly, a hub, an operating disc, a connecting assembly, a shifting fork and water pump blades;
one end of the water pump blade is arranged on the hub through a bearing; the water pump blade is connected with the shifting fork;
a rotating vane component is arranged in the oil cylinder assembly; a rotating shaft is arranged in the rotating blade assembly; the oil cylinder assembly drives the operating disc to rotate through the rotating shaft, and the operating disc drives the shifting fork and the water pump blade to rotate through the connecting component.
The oil cylinder assembly also comprises a cylinder body component, a sealing element, a cylinder cover and an oil pipe; the rotating vane assembly is connected with the cylinder body assembly and the cylinder cover through a bearing.
The rotating shaft is connected with the operating panel through a pin or a flat key, and the operating panel rotates under the driving of the rotating shaft.
The cavity of pivot is hollow structure, and oil pipe is located the cavity of pivot.
The connecting assembly comprises a sliding block pin and a sliding block, and the shifting fork is connected with the operating disk through the sliding block and the sliding block pin.
The shifting fork is provided with a groove, and the sliding block is arranged in the groove. The sliding block pin penetrates through the sliding block, and then the shifting fork is connected with the operating disk.
A sliding bearing is arranged in the cylinder cover, and the rotating shaft is connected with the cylinder cover through the sliding bearing.
The cylinder body assembly comprises a cylinder body and a plurality of fixed blades, and the fixed blades divide the cylinder body into a plurality of oil cylinder units.
The rotating vane component also comprises a rotating vane which is fixed on the rotating shaft.
The rotating shaft is provided with a flange, and the rotating blade is fixed on the rotating shaft through the flange.
The working principle is as follows: according to the utility model, pressure oil is conveyed to the oil cylinder assembly through the oil supply head, the rotating shaft of the rotating blade component in the oil cylinder assembly is driven to rotate, the operating disc arranged at the end part of the rotating shaft is driven to act, the shifting fork is driven to rotate through the sliding block pin and the sliding block on the operating disc, and the shifting fork is connected with the blades through the pins, so that the angle adjustment of the blades of the water pump is realized.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
(1) the rotary oil cylinder assembly has large output torque under the same diameter and oil pressure, and meets the requirement of large water pump blades on large adjusting force.
(2) The water pump blade adjusting mechanism has the advantages of simple and compact structure, direct transmission and convenient assembly and disassembly, does not need to convert linear motion into rotary motion through a connecting rod mechanism, has less parts and small space occupation ratio, and avoids the risk of interference with the inner cavity of the hub.
Drawings
FIG. 1 is a schematic structural diagram of a water pump blade adjusting mechanism according to the present invention;
FIG. 2 is a schematic plan view of the rotary cylinder assembly of the present invention.
Detailed Description
Example (b):
as shown in fig. 1 and 2, the water pump blade adjusting mechanism of the utility model comprises an oil cylinder assembly 1, a hub 2, an operating panel 3, a connecting component, a slider pin 5, a slider 6, a shifting fork 7 and a water pump blade 8. The connecting assembly comprises a sliding block pin 5 and a sliding block 6, and the shifting fork 7 is connected with the operating disk 3 through the sliding block 6 and the sliding block pin 5.
In this embodiment, the cylinder assembly is a rotary cylinder assembly. The rotary oil cylinder assembly comprises a cylinder body assembly 1-1, a rotating vane assembly 1-2, a sealing element, a cylinder cover 1-6 and an operating oil pipe 1-7. Wherein the seals comprise a first seal 1-3, a second seal 1-4 and a third seal 1-5.
In this embodiment, the cylinder assembly 1-1 includes a cylinder and six fixed vanes, and the six fixed vanes are connected with the cylinder by bolts and positioned by pins. The two sides of the fixed blade are provided with limiting blocks, and the end part of the cylinder body is provided with a sliding bearing for radially supporting the rotating blade assembly 1-2.
The rotating vane component 1-2 consists of a rotating shaft and six rotating vanes, and the six rotating vanes are arranged on the rotating shaft. The pivot is hollow structure, is equipped with the flange in the pivot, and in this embodiment, pivot and flange adopt the mode of integrated into one piece. Six rectangular grooves are formed in the flange of the rotating shaft, and the six rotating blades are fixed on the rotating shaft through the rectangular grooves of the flange. Copper antiwear rings are welded at two ends of the rotating shaft flange in an inlaid mode, an annular sealing groove is formed in the copper antiwear rings, and a door column-shaped sealing groove is formed in each rotating blade.
The rotary oil cylinder assembly 1 is detachably connected with the hub 2, and in the embodiment, the rotary oil cylinder assembly 1 is connected with the hub 2 through a bolt. An operating panel 3 is arranged at one end of a rotating shaft of the rotating blade assembly 1-2, and the operating panel 3 is connected with the rotating shaft through a cylindrical pin 4 or a flat key. A slide block pin 5 is arranged on the operating disk 3; the end of the shifting fork 7 is provided with a rectangular groove, and the sliding block 6 is arranged in the rectangular groove on the shifting fork 7. The blade 8 shanks are mounted in the hub 2 and are supported by slide bearings. The shifting fork 7 is fixedly connected with the blade 8 through a pin. The operating panel 3 drives the shifting fork 7 to rotate through the sliding block pin 5 and the sliding block 6, so as to drive the blade 8 to rotate. The blade 8 is driven to rotate by the shifting fork 7, so that the angle adjustment of the blade 8 is realized.
The first sealing element 1-3 is made of elastic rubber with a rectangular cross section and Polytetrafluoroethylene (PTFE) with a C-shaped cross section, is made into a C-shaped door column shape, and is embedded into a sealing groove of the rotating vane. The first sealing element is used for sealing between the rotating vane and the cylinder body and between the rotating vane and the cylinder cover. When the first sealing element 1-3 adopts a door column-shaped sealing element, the corner is a right angle so as to avoid generating a gap when adopting an arc corner and influencing the sealing property.
The second sealing element 1-4 is a PTFE and metal strip gluing element with a rectangular cross section and is embedded into the fixed blade sealing groove. One side of the second sealing element facing the rotating blade is made of PTFE, rectangular sealing grooves are formed in two sides of the metal block, and O-shaped rubber sealing rings are embedded in the rectangular sealing grooves. The second sealing element is used for sealing between the side surface of the rotating shaft flange and the fixed blade.
The third seal member 1-5 is a PTFE and metal ring-shaped bonded member of rectangular cross-section. The third sealing element is used for sealing the end face of the rotating shaft flange and the cylinder body and the cylinder cover.
The dynamic sealing part of the sealing element, which is contacted with the cylinder body and the cylinder cover 1-6 in the cylinder body component 1-1, is made of PTFE material, the material has low friction coefficient and good self-lubricating property, and has no adhesion with metal, thereby avoiding the common extrusion cutting and twisting-off accidents of O-shaped rubber sealing rings.
The cylinder cover 1-6 is internally provided with a sliding bearing used for radially supporting a rotating shaft in the rotating blade component 1-2. The operation oil pipes 1-7 are of a double-layer welding structure and are arranged in the hollow inner cavity of the rotating shaft.
The rotating vane of the rotating vane component 1-2 is arranged in the cylinder body component 1-1, and the cylinder cover 1-6 is matched with the cylinder body and connected with the cylinder body through a bolt. The rotating shaft of the rotating vane assembly 1-2 is radially supported by a sliding bearing at the end part of the cylinder body and a sliding bearing on the cylinder cover 1-6. In the embodiment, the six fixed blades divide the cylinder body into six cylinder units, the six rotating blades are arranged in the six cylinder units, each cylinder unit forms two oil cavities, and the oil receiver conveys pressure oil into the six cylinder units through the operation oil pipes 1-7 to drive the rotating blades to rotate.
Claims (10)
1. The utility model provides a water pump blade adjustment mechanism which characterized in that: the water pump blade adjusting mechanism comprises an oil cylinder assembly (1), a hub (2), an operating panel (3), a connecting assembly, a shifting fork (7) and water pump blades (8);
one end of the water pump blade (8) is arranged on the hub (2) through a bearing; the water pump blade (8) is connected with the shifting fork (7);
a rotating vane component (1-2) is arranged in the oil cylinder assembly (1); a rotating shaft is arranged in the rotating blade assembly (1-2); the oil cylinder assembly (1) drives the operation disc (3) to rotate through the rotating shaft, and the operation disc (3) drives the shifting fork (7) and the water pump blade (8) to rotate through the connecting component.
2. The water pump blade adjustment mechanism of claim 1, wherein: the oil cylinder assembly (1) further comprises a cylinder body assembly (1-1), a sealing element, a cylinder cover (1-6) and an oil pipe (1-7); the rotating vane assembly (1-2) is connected with the cylinder body assembly (1-1) and the cylinder cover (1-6) through a bearing.
3. The water pump blade adjustment mechanism of claim 1, wherein: the rotating shaft is connected with the operating panel (3) through a pin or a flat key.
4. The water pump blade adjustment mechanism of claim 2, wherein: the cavity of the rotating shaft is of a hollow structure, and the oil pipes (1-7) are located in the cavity of the rotating shaft.
5. The water pump blade adjustment mechanism of claim 1, wherein: the connecting assembly comprises a sliding block pin (5) and a sliding block (6), and the shifting fork (7) is connected with the operating disk (3) through the sliding block (6) and the sliding block pin (5).
6. The water pump blade adjustment mechanism of claim 5, wherein: the shifting fork (7) is provided with a groove, and the sliding block (6) is arranged in the groove.
7. The water pump blade adjustment mechanism of claim 2, wherein: and sliding bearings are arranged in the cylinder covers (1-6), and the rotating shaft is connected with the cylinder covers through the sliding bearings.
8. The water pump blade adjustment mechanism of claim 2, wherein: the cylinder body assembly (1-1) comprises a cylinder body and a plurality of fixed blades, and the fixed blades divide the cylinder body into a plurality of oil cylinder units.
9. The water pump blade adjustment mechanism of claim 1, wherein: the rotating blade assembly (1-2) further comprises a rotating blade, and the rotating blade is fixed on the rotating shaft.
10. The water pump blade adjustment mechanism of claim 9, wherein: the rotating shaft is provided with a flange, and the rotating blade is fixed on the rotating shaft through the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122160644.5U CN216306314U (en) | 2021-09-08 | 2021-09-08 | Water pump blade adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122160644.5U CN216306314U (en) | 2021-09-08 | 2021-09-08 | Water pump blade adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306314U true CN216306314U (en) | 2022-04-15 |
Family
ID=81089395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122160644.5U Active CN216306314U (en) | 2021-09-08 | 2021-09-08 | Water pump blade adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306314U (en) |
-
2021
- 2021-09-08 CN CN202122160644.5U patent/CN216306314U/en active Active
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