High-wear-resistance polyurethane impeller

Abstract

The utility model relates to the technical field of impellers, in particular to a high-abrasion-resistance polyurethane impeller which comprises an impeller body, multiple sets of blades are arranged on the outer side of the impeller body, two sets of installation blocks are arranged at the ends, close to the impeller body, of the blades, fixing bolts are rotationally connected into the installation blocks, limiting blocks are arranged on the outer sides of the fixing bolts, and the limiting blocks are connected with the blades. Multiple sets of connecting rods are arranged at the ends, close to the fixing bolts, of the limiting blocks, the fixing bolts are connected with the connecting rods through sleeves, the impeller body is connected with the fixing bolts through the fixing blocks, the blades are polyurethane blades, and clamping blocks are arranged at the ends, close to the impeller body, of the blades. A plurality of clamping grooves are formed in the impeller body, the size of the internal structures of the clamping grooves corresponds to the size of the external structures of the clamping blocks, the blades are connected with the clamping grooves through the clamping blocks, and compared with an existing impeller, the overall practicability of the impeller can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, and particularly relates to a highly wear-resistant polyurethane impeller. Background Technique

[0002] Polyurethane products can improve production efficiency, reduce failure rates, reduce energy consumption, and ensure operation safety. The main characteristics of products in the mining industry are wear resistance, stamping resistance, fatigue resistance, etc., and polyurethane products just meet these requirements.

[0003] An impeller refers to both a disk equipped with moving blades, which is a component of an impulse steam turbine rotor, and can also refer to the general term for the disk and the rotating blades installed thereon. The impeller can be classified according to its shape and opening / closing condition.

[0004] During the use of existing impellers, due to the friction of sand and gravel, the blades are damaged. The existing blades have poor wear resistance. Generally, they are welded on the surface of the impeller body, which is not convenient for replacement and affects the service life of the impeller. Therefore, for the improvement of existing impellers, it is particularly important to design a new type of highly wear-resistant polyurethane impeller to solve the above technical defects and improve the practicability of the overall impeller. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a highly wear-resistant polyurethane impeller, which is convenient for replacing the blades through the overall design and improves the service life of the impeller body, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A highly wear-resistant polyurethane impeller, including an impeller body. A plurality of groups of blades are arranged on the outer side of the impeller body. Two groups of mounting blocks are arranged at one end of the blade close to the impeller body. A fixing bolt is rotatably connected inside the mounting block. A limiting block is arranged on the outer side of the fixing bolt. A plurality of connecting rods are arranged at one end of the limiting block close to the fixing bolt. The fixing bolt is connected with the connecting rod through a sleeve. The impeller body is connected with the fixing bolt through a fixing block.

[0008] As a preferred scheme of the utility model, the blade is a polyurethane blade, and a clamping block is arranged at one end of the blade close to the impeller body. A plurality of clamping grooves are formed inside the impeller body. The internal structure size of the clamping groove corresponds to the external structure size of the clamping block. The blade is connected with the clamping groove through the clamping block.

[0009] As a preferred scheme of the utility model, a threaded groove is formed at one end of the fixing block close to the fixing bolt. The internal structure size of the threaded groove corresponds to the external structure size of the fixing bolt. The fixing block is connected with the fixing bolt through the threaded groove.

[0010] As a preferred solution of the present utility model, a limiting groove is provided at one end of the fixing block close to the limiting block and outside the threaded groove. The internal structure size of the limiting groove corresponds to the external structure size of the limiting block. The fixing block is connected to the limiting block through the limiting groove.

[0011] As a preferred solution of the present utility model, the external structure size of the connecting rod corresponds to the internal structure size of the sleeve, and the connecting rod is slidably connected to the sleeve. Multiple groups of the sleeves are connected to the fixing bolts through the connecting rings.

[0012] As a preferred solution of the present utility model, a driving screw is threadedly connected inside the sleeve. The driving screw is connected to the connecting rod through the sleeve, and the driving screw is rotatably connected to the connecting rod.

[0013] As a preferred solution of the present utility model, the rotation directions of the driving screw and the fixing bolt are designed to be opposite.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, through the design of the mounting block and the fixing block, when the blade needs to be installed on the outside of the impeller main body, the clamping block is clamped inside the clamping groove, so that the blade can be connected to the impeller main body through the clamping block, increasing the connection stability between the blade and the impeller main body. Rotate the fixing bolt to threadedly connect the fixing bolt to the threaded groove, so that the fixing bolt can be connected to the fixing block, and then the mounting block can be connected to the fixing block. Then rotate the driving screw, and the connecting rod can be driven to displace through the sleeve, so that the connecting rod can drive the limiting block to displace. The limiting block is displaced into the limiting groove, so that the limiting block can be connected to the fixing block, and then the fixing bolt can be connected to the limiting groove. Through the limiting connection between the limiting block and the limiting groove, it can prevent the fixing bolt from loosening and the connection with the threaded groove from loosening, which may affect the installation of the blade and the impeller main body. The overall design facilitates the replacement of the blade and improves the service life of the impeller main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the blade structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the fixing bolt structure of the present utility model.

[0019] In the figure: 1. Impeller body; 2. Blade; 3. Mounting block; 4. Fixing bolt; 5. Limiting block; 6. Connecting rod; 7. Sleeve; 8. Clamping block; 9. Thread groove; 10. Limiting groove; 11. Connecting ring; 12. Driving screw; 13. Fixing block. Detailed implementation mode

[0020] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Embodiment:

[0022] Please refer to Figures 1 - 3 , the present invention provides a technical solution:

[0023] A highly wear-resistant polyurethane impeller includes an impeller body 1. A plurality of groups of blades 2 are arranged on the outer side of the impeller body 1. Two groups of mounting blocks 3 are arranged at one end of the blade 2 close to the impeller body 1. A fixing bolt 4 is rotatably connected inside the mounting block 3. A limiting block 5 is arranged on the outer side of the fixing bolt 4. A plurality of groups of connecting rods 6 are arranged at one end of the limiting block 5 close to the fixing bolt 4. The fixing bolt 4 is connected to the connecting rod 6 through a sleeve 7. The blade 2 is connected to the fixing bolt 4 through a fixing block 13.

[0024] Furthermore, the blade 2 is a polyurethane blade. The polyurethane material of the blade 2 enables the blade 2 to have a good wear-resistant effect, thereby increasing the service life of the blade 2. And a clamping block 8 is arranged at one end of the blade 2 close to the impeller body 1. A plurality of groups of clamping grooves are opened inside the impeller body 1. The internal structure size of the clamping groove corresponds to the external structure size of the clamping block 8. The blade 2 is connected to the impeller body 1 through the clamping block 8. When connecting the blade 2 to the impeller body 1, the clamping block 8 is clamped inside the clamping groove, so that the blade 2 can be connected to the impeller body 1 through the clamping block 8, increasing the connection stability between the blade 2 and the impeller body 1.

[0025] Among them, a thread groove 9 is opened at one end of the fixing block 13 close to the fixing bolt 4. The internal structure size of the thread groove 9 corresponds to the external structure size of the fixing bolt 4. The fixing block 13 is connected to the fixing bolt 4 through the thread groove 9. The fixing bolt 4 and the thread groove 9 are threadedly connected, so that the fixing bolt 4 can be connected to the fixing block 13, and thus the mounting block 3 can be connected to the fixing block 13. Therefore, the blade 2 can be connected to the impeller body 1.

[0026] Secondly, a limiting groove 10 is formed at one end of the fixing block 13 close to the limiting block 5 and outside the threaded groove 9. The internal structure size of the limiting groove 10 is designed to correspond to the external structure size of the limiting block 5. The fixing block 13 is connected to the limiting block 5 through the limiting groove 10. Connecting the limiting block 5 and the limiting groove 10 enables the limiting block 5 to be connected to the fixing block 13, so that the fixing bolt 4 can be connected to the limiting groove 10.

[0027] Furthermore, the external structure size of the connecting rod 6 is designed to correspond to the internal structure size of the sleeve 7, and the connecting rod 6 is slidably connected to the sleeve 7. Multiple groups of sleeves 7 are connected to the fixing bolt 4 through the connecting ring 11. Connecting the connecting rod 6 and the sleeve 7 enables the connecting rod 6 to be connected to the fixing bolt 4, so that the limiting block 5 can be connected to the fixing bolt 4. When the limiting block 5 is connected to the limiting groove 10 in a limited manner, the limiting block 5 can limit and connect the fixing bolt 4.

[0028] Furthermore, a driving screw rod 12 is threadedly connected inside the sleeve 7. The driving screw rod 12 is connected to the connecting rod 6 through the sleeve 7, and the driving screw rod 12 is rotatably connected to the connecting rod 6. Threadedly connecting the driving screw rod 12 and the sleeve 7, rotating the driving screw rod 12 can drive the connecting rod 6 to displace through the sleeve 7, so that the connecting rod 6 can drive the limiting block 5 to displace, and displace the limiting block 5 into the internal of the limiting groove 10.

[0029] Furthermore, the rotation directions of the driving screw rod 12 and the fixing bolt 4 are designed to be opposite. The opposite rotation directions of the driving screw rod 12 and the fixing bolt 4 can prevent the driving screw rod 12 from loosening when the fixing bolt 4 loosens, which may affect the connection between the limiting block 5 and the limiting groove 10.

[0030] In this embodiment, the implementation scenario is specifically as follows: during actual use, when it is necessary to install the blade 2 on the outside of the impeller body 1, the clamping block 8 is clamped inside the clamping groove, so that the blade 2 can be connected to the impeller body 1 through the clamping block 8, increasing the connection stability between the blade 2 and the impeller body 1. Rotate the fixing bolt 4 to thread the fixing bolt 4 into the threaded groove 9, so that the fixing bolt 4 can be connected to the fixing block 13, and thus the mounting block 3 can be connected to the fixing block 13. Then rotate the driving screw 12, and the connecting rod 6 can be driven to displace through the sleeve 7, so that the connecting rod 6 can drive the limiting block 5 to displace. Move the limiting block 5 into the limiting groove 10, so that the limiting block 5 can be connected to the fixing block 13, and thus the fixing bolt 4 can be connected to the limiting groove 10. Through the limiting connection between the limiting block 5 and the limiting groove 10, it is possible to prevent the fixing bolt 4 from loosening and the connection between the fixing bolt 4 and the threaded groove 9 from loosening, which may affect the installation of the blade 2 on the impeller body 1. Through the overall design, it is convenient to replace the blade 2, improving the service life of the impeller body 1. Compared with the existing impellers, the present utility model can improve the overall practicality of the impeller through the design.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant polyurethane impeller, comprising an impeller body (1), characterized in that: The outer side of the impeller body (1) is provided with a plurality of groups of blades (2); the blades (2) are provided with two groups of mounting blocks (3) at one end close to the impeller body (1); a fixing bolt (4) is rotatably connected inside the mounting block (3); a limit block (5) is provided on the outer side of the fixing bolt (4); the limit block (5) is provided with a plurality of groups of connecting rods (6) at one end close to the fixing bolt (4); the fixing bolt (4) is connected to the connecting rod (6) via a sleeve (7); and the impeller body (1) is connected to the fixing bolt (4) via a fixing block (13).

2. A highly wear-resistant polyurethane impeller according to claim 1, characterized in that: The blade (2) is a polyurethane blade, and a clamping block (8) is provided at one end of the blade (2) close to the impeller body (1). A plurality of clamping grooves are provided inside the impeller body (1), and the internal structure size of the clamping groove is designed to correspond to the external structure size of the clamping block (8). The blade (2) is connected to the clamping groove via the clamping block (8).

3. The highly wear-resistant polyurethane impeller according to claim 1, characterized in that: A thread groove (9) is formed at one end of the fixing block (13) close to the fixing bolt (4); the internal structure size of the thread groove (9) is designed to correspond to the external structure size of the fixing bolt (4); and the fixing block (13) is connected to the fixing bolt (4) via the thread groove (9).

4. A highly wear-resistant polyurethane impeller according to claim 3, characterized in that: The fixing block (13) is provided with a limiting groove (10) located near one end of the limiting block (5) and outside the thread groove (9); the internal structure size of the limiting groove (10) is designed to correspond to the external structure size of the limiting block (5); and the fixing block (13) is connected to the limiting block (5) via the limiting groove (10).

5. The highly wear-resistant polyurethane impeller according to claim 1, characterized in that: The external structure size of the connecting rod (6) is designed to correspond to the internal structure size of the sleeve (7), and the connecting rod (6) and the sleeve (7) are slidably connected. Multiple groups of the sleeves (7) are connected to the fixing bolts (4) through connecting rings (11).

6. The highly wear-resistant polyurethane impeller according to claim 1, characterized in that: The inner thread of the sleeve (7) is connected with a driving screw rod (12), and the driving screw rod (12) is connected to the connecting rod (6) through the sleeve (7), and the driving screw rod (12) and the connecting rod (6) are rotationally connected.

7. A highly wear-resistant polyurethane impeller according to claim 6, characterized in that: The driving screw rod (12) and the fixing bolt (4) are designed to rotate in opposite directions.

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