Impeller with blade angle adjustable structure

Abstract

The utility model discloses an impeller with a blade angle adjustable structure. The impeller comprises an impeller frame, a bottom frame and a connecting rod. The connecting rod is used for connecting the impeller frame and the bottom frame, the impeller frame and the bottom frame are provided with blade angle adjusting assemblies, and the bottom frame is provided with an angle fixing assembly. The utility model relates to the technical field of impeller blade adjustment, and has the following beneficial effects that the blade angles on the impeller can be conveniently, quickly and simultaneously adjusted through the blade angle adjusting assembly, and then the adjusted blade angles can be fixed through the angle fixing assembly, so that the impeller can adapt to various working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of impeller blade adjustment, in particular to an impeller with a blade angle adjustable structure. Background Art

[0002] Impeller refers to the wheel disc with moving blades, which is a component of the impulse steam turbine rotor, and can also refer to the general term for the wheel disc and the rotating blades installed on it. Impellers can be classified according to their shape and opening and closing conditions;

[0003] However, the blade angle on the traditional impeller is fixed when it is produced, and different working environments require different impeller speeds. The traditional method cannot adjust the blade angle according to the working conditions to achieve the adjustment of the impeller speed. Utility Model Content

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: an impeller with a blade angle adjustable structure, comprising an impeller frame, a base frame and a connecting rod; the connecting rod is used to connect the impeller frame with the base frame, the impeller frame and the base frame are provided with a blade angle adjustment component, and the base frame is provided with an angle fixing component;

[0005] The blade angle adjustment component includes: a rotating shaft, a blade, a central axis hole, a central axis, an adjustment frame, a handle frame, a movable buckle, a slide groove, a sliding column, a slideway, a slider, a hinge seat and a swing rod;

[0006] The blades are installed between the annular support frames through the rotating shaft and are distributed around the base frame and the impeller frame. The central axis hole is opened on the base frame, the central axis is installed on the central axis hole, the adjustment frame is installed and distributed around the side wall of the central axis, the hinge seat is installed on the blade and the movable buckle, the slideway is opened on the base frame, the slider is installed in the slideway and connected to the movable buckle, the swing rod is installed between the hinge seats, the slide groove is opened on the movable buckle, the sliding column is connected to the adjustment frame, the adjustment frame is installed in the slide groove through the sliding column, and the handle frame is installed at the bottom of the central axis.

[0007] Preferably, the angle fixing assembly comprises: a threaded hole, a threaded rod, a rotating handle, a rotating bearing and a top block;

[0008] The threaded hole is formed on the handle frame, the threaded rod is installed in the threaded hole, the rotating handle is connected to the threaded rod, and the top block is connected to the other end of the threaded rod through a rotating bearing.

[0009] Preferably, a rubber pad is provided on the top block.

[0010] Preferably, a protective cover is provided below the base frame.

[0011] Preferably, a spring is provided in the slideway and presses against the sliding block.

[0012] Beneficial Effects

[0013] The impeller with an adjustable blade angle has the following beneficial effects:

[0014] In this case, the blade angle adjustment component can be used to achieve convenient and rapid simultaneous adjustment of the blade angle on the impeller, and then the adjusted blade angle can be fixed through the angle fixing component, so that the impeller can adapt to a variety of working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1-2 This is a three-dimensional schematic diagram of the appearance of an impeller with an adjustable blade angle structure described in the utility model.

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of an impeller with a blade angle adjustable structure described in the utility model.

[0017] Figure 4 It is a partially enlarged schematic diagram of the angle fixing assembly of the impeller with a blade angle adjustable structure described in the utility model.

[0018] Figure 5 It is a partially enlarged schematic diagram of a blade angle adjustment component of an impeller with a blade angle adjustable structure described in the utility model.

[0019] In the figure: 1, impeller frame; 2, base frame; 3, connecting rod; 4, rotating shaft; 5, blade; 6, central axis hole; 7, central axis; 8, adjustment frame; 9, handle frame; 10, moving buckle; 11, slideway; 12, slider; 13, hinge seat; 14, swing rod; 15, threaded hole; 16, threaded rod; 17, rotating handle; 18, rotating bearing; 19, top block; 20, slide groove; 21, sliding column; DETAILED DESCRIPTION

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] See also Figure 1-5 , the utility model provides a technical solution.

[0022] An impeller with a blade 5 angle adjustable structure, comprising an impeller frame 1, a base frame 2 and a connecting rod 3; the connecting rod 3 is used to connect the impeller frame 1 with the base frame 2, the impeller frame 1 and the base frame 2 are provided with a blade angle adjustment component, and the base frame 2 is provided with an angle fixing component;

[0023] The blade 5 angle adjustment assembly includes: a rotating shaft 4, a blade 5, a central axis hole 6, a central axis 7, an adjustment frame 8, a handle frame 9, a movable buckle 10, a slide groove 20, a sliding column 21, a slideway 11, a slider 12, a hinge seat 13 and a swing rod 14;

[0024] The blades 5 are installed between the annular support frames through the rotating shaft 4 and are distributed around the base frame 2 and the impeller frame 1. The central axis hole 6 is opened on the base frame 2, and the central axis 7 is installed on the central axis hole 6. The adjusting frame 8 is installed and distributed around the side wall of the central axis 7. The hinge seat 13 is installed on the blades 5 and the movable buckle 10. The slideway 11 is opened on the base frame 2. The slider 12 is installed in the slideway 11 and connected to the movable buckle 10. The swing rod 14 is installed between the hinge seats 13. The slide groove 20 is opened on the movable buckle 10. The sliding column 21 is connected to the adjusting frame 8. The adjusting frame 8 is installed in the slide groove 20 through the sliding column 21, and the handle frame 9 is installed at the bottom of the central axis 7.

[0025] It should be noted that when the blade 5 needs to be adjusted, the handle frame 9 is rotated to drive the central axis 7 to rotate on the central axis hole 6, and the adjustment frame 8 rotates along with the central axis 7. During the rotation, the sliding column 21 can move in the slide groove 20, thereby driving the movable buckle 10 to move and adjust on the slideway 11 through the slider 12, so that the blade 5 is rotated to a specified angle through the cooperation of the hinge seat 13 and the swing rod 14.

[0026] As a preferred embodiment, further, the angle fixing assembly comprises: a threaded hole 15, a threaded rod 16, a rotating handle 17, a rotating bearing 18 and a top block 19;

[0027] The threaded hole 15 is formed on the handle frame 9 , the threaded rod 16 is installed in the threaded hole 15 , the rotary handle 17 is connected to the threaded rod 16 , and the top block 19 is connected to the other end of the threaded rod 16 via a rotary bearing 18 .

[0028] It should be noted that after the blade 5 is adjusted to the corresponding angle, the threaded rod 16 is driven to rotate in the threaded hole 15 by rotating the handle 17, so that the top block 19 moves downward through the rotating bearing 18 until the top block 19 is pressed against the bottom surface of the base frame 2, thereby stopping the rotation of the central axis 7 and fixing the angle of the blade 5.

[0029] Preferably, further, a rubber pad is provided on the top block 19 .

[0030] It should be noted that the rubber pad is used to provide great friction, making the fixed state more stable.

[0031] Preferably, a protective cover is provided below the base frame 2.

[0032] It should be noted that the protective cover is used to protect the adjustment mechanism.

[0033] Preferably, the slide groove 20 is designed to be inclined on the movable buckle 10 .

[0034] It should be noted that the inclined slide groove 20 can ensure that when the sliding column 21 moves with the adjustment frame 8, the movable buckle 10 can be smoothly driven to move.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impeller with an adjustable blade angle structure, comprising an impeller frame, a base frame and a connecting rod; the connecting rod is used to connect the impeller frame and the base frame, characterized in that: The impeller frame and the base frame are provided with a blade angle adjustment component, and the base frame is provided with an angle fixing component; The blade angle adjustment component includes: a rotating shaft, a blade, a central axis hole, a central axis, an adjustment frame, a handle frame, a movable buckle, a slide groove, a sliding column, a slideway, a slider, a hinge seat and a swing rod; The blades are installed between the annular support frames through the rotating shaft and are distributed around the base frame and the impeller frame. The central axis hole is opened on the base frame, the central axis is installed on the central axis hole, the adjustment frame is installed and distributed around the side wall of the central axis, the hinge seat is installed on the blade and the movable buckle, the slideway is opened on the base frame, the slider is installed in the slideway and connected to the movable buckle, the swing rod is installed between the hinge seats, the slide groove is opened on the movable buckle, the sliding column is connected to the adjustment frame, the adjustment frame is installed in the slide groove through the sliding column, and the handle frame is installed at the bottom of the central axis.

2. The impeller with a blade angle adjustable structure according to claim 1, characterized in that: The angle fixing assembly comprises: a threaded hole, a threaded rod, a rotating handle, a rotating bearing and a top block; The threaded hole is formed on the handle frame, the threaded rod is installed in the threaded hole, the rotating handle is connected to the threaded rod, and the top block is connected to the other end of the threaded rod through a rotating bearing.

3. The impeller with a blade angle adjustable structure according to claim 2, characterized in that: A rubber pad is arranged on the top block.

4. The impeller with a blade angle adjustable structure according to claim 1, characterized in that: A protective cover is arranged below the base frame.

5. The impeller with a blade angle adjustable structure according to claim 1, characterized in that: A spring is arranged in the slideway and is pressed against the sliding block.

Images