Quick replacement device for blades of axial flow pump

Abstract

The utility model relates to the technical field of axial flow pump blades, and discloses an axial flow pump blade quick replacement device which comprises a fixing column, a plurality of guide blade sections are fixedly connected to the outer portion of the fixing column, a plurality of supporting assemblies are fixedly connected to the bottom end of the outer portion of the fixing column, and a plurality of blades are slidably connected to the interior of the top end of the fixing column. The outer portions of the close sides of the multiple blades are each fixedly connected with two assembling plates, the interiors of the assembling plates are in threaded connection with a containing column, a circular hole is formed in one side of the containing column, two movable holes are formed in the outer portion of the containing column, and a sliding rod is slidably connected to the inner wall of one side of the containing column. According to the blade replacement device, the rolling balls slide out of the movable holes by pressing the pressing disc, then the control disc is screwed to drive the containing columns to rotate, the blades can be taken out and assembled, the blade replacement process is greatly simplified, the complexity of manual operation is reduced, and then the overall downtime is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow pump blades, in particular to a device for quickly replacing axial flow pump blades. Background Art

[0002] Axial flow pump is a dynamic pump that generates force on the liquid through the rotating impeller blades, so that the liquid is transported along the axis, hence the name axial flow pump. The design and working principle of axial flow pumps give them significant advantages in applications with low head and large flow, and the axial flow pump blades are the core components of the axial flow pump, which are mainly responsible for converting the mechanical energy of the prime mover into the kinetic energy and pressure energy of the fluid.

[0003] In the prior art, some axial flow pumps are usually used to draw water from rivers. However, rivers contain silt, which will cause serious wear on the blades and may cause damage to the blades in the long run. At this time, the blades need to be replaced. Most replacements usually use tools to tighten bolts and nuts to remove the blades from the device. This not only increases the complexity of manual operation but also increases the time for replacement, thereby increasing the overall downtime. Therefore, in view of the above shortcomings, an axial flow pump blade quick replacement device is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a quick replacement device for axial flow pump blades, aiming to improve the problem in the prior art that replacing blades not only increases the complexity of operation but also increases downtime.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an axial flow pump blade quick replacement device comprises a fixing column, the outside of the fixing column is fixedly connected with a plurality of guide vane segments, the outer bottom end of the fixing column is fixedly connected with a plurality of supporting assemblies, the top end of the fixing column is slidably connected with a plurality of blades, the adjacent sides of the plurality of blades are fixedly connected with two assembly plates, the internal thread of the assembly plate is connected with a receiving column, a circular hole is opened inside one side of the receiving column, two movable holes are opened outside the receiving column, a sliding rod is slidably connected to the inner wall of one side of the receiving column, a pressing plate is fixedly connected to the far side of the plurality of sliding rods, the outer side of the sliding rod is fixedly connected with a limiting plate, the outer sleeve of the sliding rod is provided with a strong spring, an expansion hole is opened outside one side of the sliding rod, a receiving hole is arranged inside the receiving column, and a rolling ball is movably connected inside the movable hole.

[0006] Furthermore, the support assembly includes support plate segments, and adjacent sides of a plurality of the support plate segments are respectively fixedly connected to the outer bottom ends of the fixing columns.

[0007] Furthermore, one side of the assembly plate is in contact with the external top end of the fixing column, and the external thread of the accommodating column is connected to the inside of the fixing column.

[0008] Furthermore, a control disk is fixedly connected to the outside of the far side of the plurality of accommodating columns, one side of the control disk is in contact with one side of the assembly plate, and the outside of the sliding rod is slidably connected to the inside of the circular hole.

[0009] Furthermore, the outside of the rolling ball contacts the outside of the sliding rod, and the outside of the limiting plate is slidably connected to the inside of the accommodating hole.

[0010] Furthermore, the outer portion of the rolling ball is movably connected to the inner portion of the expansion hole, and the outer portion of the rolling ball is engaged with the inner portion of the top end of the fixing column.

[0011] Furthermore, one end of the strong spring is fixedly connected to one side of the limiting plate, and the other end of the strong spring is fixedly connected to one side of the interior of the accommodating hole.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, the blades can be taken out and assembled by pressing the pressing plate to slide the ball out from the inside of the movable hole, and then twisting the control plate to drive the accommodating column to rotate, which greatly simplifies the blade replacement process, reduces the complexity of manual operation, and thus reduces the overall downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the axial flow pump blade quick replacement device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the fixed column structure of the axial flow pump blade quick replacement device proposed by the utility model;

[0016] Figure 3 for Figure 2 A in the enlarged view;

[0017] Figure 4 This is a schematic diagram of the structure of the accommodating column of the axial flow pump blade quick replacement device proposed by the utility model.

[0018] Legend:

[0019] 1. Fixed column; 2. Guide vane section; 3. Support plate section; 4. Blade; 5. Assembly plate; 6. Accommodation column; 7. Circular hole; 8. Movable hole; 9. Sliding rod; 10. Pressing plate; 11. Limiting plate; 12. Power spring; 13. Expansion hole; 14. Accommodation hole; 15. Rolling ball; 16. Control plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 - Figure 3 The utility model provides an embodiment: an axial flow pump blade quick replacement device, including a fixed column 1, the design needs to ensure sufficient strength and stability to withstand the mechanical load during operation, the fixed column 1 is fixedly connected to the outside with a plurality of guide vane segments 2, their function is to guide the direction of water flow, to ensure that the fluid passes through the blade 4 in the best path, thereby improving the efficiency and effectiveness of the pump, the external bottom end of the fixed column 1 is fixedly connected to a plurality of support components to provide additional stability and support, to ensure that the entire device can be reliably fixed in a predetermined position, the support component includes a support plate segment 3, the adjacent sides of the plurality of support plate segments 3 are respectively fixedly connected to the fixed column 1, and a plurality of blades 4 are slidably connected to the top of the fixed column 1. These blades 4 are key components in the axial flow pump that directly contact the water flow and transfer energy to drive the fluid flow. Two assembly plates 5 are fixedly connected to the outside of the adjacent side of the plurality of blades 4. These assembly plates 5 increase the reliability of the connection between the blades 4 and the fixed column 1. The internal thread of the assembly plate 5 is connected to the accommodating column 6. The function of the accommodating column 6 may be to further fix and adjust the position of the blade 4 to adapt to different operating conditions. One side of the assembly plate 5 is in contact with the external top of the fixed column 1, and the external thread of the accommodating column 6 is connected to the inside of the fixed column 1.

[0022] Reference Figure 2 - Figure 4A circular hole 7 is provided inside one side of the accommodating column 6 to provide additional movement space, and two movable holes 8 are provided outside the accommodating column 6 to provide additional accommodating space. A sliding rod 9 is slidably connected to the inner wall of one side of the accommodating column 6 to transmit movement and force. The outside of the sliding rod 9 is slidably connected to the inside of the circular hole 7, and the far sides of the multiple sliding rods 9 are fixedly connected to a pressing plate 10 for applying pressure or torque. The outside of the sliding rod 9 is fixedly connected to a limiting plate 11 for limiting the sliding rod 9. A strong spring 12 is provided on the outside of the sliding rod 9. This design is to provide spring force and reset functions. One end of the strong spring 12 is fixedly connected to one side of the limiting plate 11, and an expansion spring 12 is provided on the outside of one side of the sliding rod 9. The filling hole 13 is used to provide additional space, and an accommodating hole 14 is provided inside the accommodating column 6 to provide additional space. The outside of the limit plate 11 is slidably connected to the inside of the accommodating hole 14, and the other end of the strong spring 12 is fixedly connected to one side of the inside of the accommodating hole 14. The inside of the movable hole 8 is movably connected with a ball 15. The ball 15 is designed to perform a snap-fit ​​function, and the outside of the ball 15 is movably connected to the inside of the expansion hole 13. The outside of the ball 15 is snap-fitted with the top inside of the fixed column 1, and the outside of the ball 15 is in contact with the outside of the sliding rod 9. The outside of the far side of the multiple accommodating columns 6 is fixedly connected with a control plate 16 for manually controlling the replacement of the blades 4, and one side of the control plate 16 is in contact with one side of the assembly plate 5.

[0023] Working principle: First, when replacing the blade 4, first press the pressing plate 10, and the pressing of the pressing plate 10 drives the sliding rod 9 to slide on the inner wall of the accommodating column 6, and then the movement of the sliding rod 9 will also make the limiting plate 11 slide inside the accommodating hole 14, and the movement of the sliding rod 9 will also drive the expansion hole 13 to move to the same position as the ball 15, providing more movement space for the ball 15, and no longer constrained in the movable hole 8, which will make the accommodating column 6 no longer restricted, and then turn the control plate 16 to take the accommodating column 6 out of the fixed column 1, which will make the blade 4 no longer restricted and can be taken out, and then the movement of the limiting plate 11 will also drive the strong spring 12 to move under force, and the strong spring 12 will generate a rebound force under the force, and this rebound force provides the outside of the sliding rod 9 to limit the ball 15, so that the ball 15 can only be inside the movable hole 8, which will limit the accommodating column 6 and cannot be pulled out.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick replacement device for axial flow pump blades, comprising a fixing column (1), characterized in that: The outside of the fixing column (1) is fixedly connected to a plurality of guide vane segments (2), the outside bottom end of the fixing column (1) is fixedly connected to a plurality of support components, the top end of the fixing column (1) is slidably connected to a plurality of blades (4), the outsides of the adjacent sides of the plurality of blades (4) are fixedly connected to two assembly plates (5), the inside of the assembly plate (5) is threadedly connected to a receiving column (6), a circular hole (7) is provided inside one side of the receiving column (6), and two movable holes ( 8), a sliding rod (9) is slidably connected to the inner wall of one side of the accommodating column (6), a pressing plate (10) is fixedly connected to the far side of the plurality of sliding rods (9), a limiting plate (11) is fixedly connected to the outside of the sliding rod (9), a strong spring (12) is sleeved on the outside of the sliding rod (9), an expansion hole (13) is opened on the outside of one side of the sliding rod (9), a accommodating hole (14) is arranged inside the accommodating column (6), and a rolling ball (15) is movably connected inside the movable hole (8).

2. The axial flow pump blade quick replacement device according to claim 1 is characterized in that: The support assembly comprises a support plate segment (3), and adjacent sides of a plurality of the support plate segments (3) are respectively fixedly connected to the outer bottom ends of the fixing columns (1).

3. The axial flow pump blade quick replacement device according to claim 1 is characterized in that: One side of the assembly plate (5) contacts the external top end of the fixing column (1), and the external thread of the accommodating column (6) is connected to the inside of the fixing column (1).

4. The axial flow pump blade quick replacement device according to claim 1, characterized in that: A control panel (16) is fixedly connected to the outside of the far side of the plurality of accommodating columns (6), one side of the control panel (16) contacts one side of the assembly plate (5), and the outside of the sliding rod (9) is slidably connected to the inside of the circular hole (7).

5. The axial flow pump blade quick replacement device according to claim 1, characterized in that: The outside of the rolling ball (15) contacts the outside of the sliding rod (9), and the outside of the limiting plate (11) is slidably connected to the inside of the accommodating hole (14).

6. The axial flow pump blade quick replacement device according to claim 1, characterized in that: The outside of the rolling ball (15) is movably connected to the inside of the expansion hole (13), and the outside of the rolling ball (15) is engaged with the inside of the top end of the fixing column (1).

7. The axial flow pump blade quick replacement device according to claim 1, characterized in that: One end of the strong spring (12) is fixedly connected to one side of the limiting plate (11), and the other end of the strong spring (12) is fixedly connected to one side inside the accommodating hole (14).

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