Special impeller for ultra-high molecular weight polyethylene acid-resistant pump

Abstract

The utility model discloses a special impeller for an ultra-high molecular weight polyethylene acid-resistant pump, which relates to the technical field of impellers and comprises a shell and an impeller disc, the impeller disc is rotatably connected onto the shell through a rotating shaft, guide blocks are fixedly connected to two sides of the rotating shaft, a through hole is formed in the impeller disc, one side of the rotating shaft is movably connected with the through hole, and the other side of the rotating shaft is movably connected with the impeller disc. Guide grooves are formed in the inner walls of the two sides of the through hole, the guide blocks are movably connected with the guide grooves, a screw rod is rotationally connected to the interior of each guide block, a first sliding block is in threaded connection to the outer surface of each screw rod, and each first sliding block is slidably connected to the interior of the corresponding guide block. By the adoption of the structure, the first blades are fixed to the impeller disc, the water absorption capacity of the water pump can be improved by increasing the number of the first blades, the second blades are fixed to the first blades to form the flow channels, water flow can be guided, the inlet area of the impeller is increased, and the water absorption capacity of the water pump is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of impellers, in particular to a special impeller for an ultra-high molecular weight polyethylene acid-resistant pump. Background Art

[0002] The pump is a widely used fluid conveying equipment, and its performance directly affects the operating efficiency and stability of the fluid system. The impeller is the core component of the pump, and its design, material and manufacturing process directly determine the performance and life of the pump.

[0003] For example, a Chinese patent with publication number CN205689486U discloses a water pump impeller, including an impeller end cover and blades, wherein the blades are fixed on a chassis in an arc-shaped sheet shape, and a connecting hole for a drive shaft to pass through is provided in the center of the impeller end cover and the chassis, and is characterized in that the inner wall of the impeller end cover, the surface of the blades and the chassis are covered with an anti-corrosion layer, and the material of the anti-corrosion layer is epoxy resin.

[0004] By applying the anti-corrosion layer on the impeller, the corrosion resistance can be improved and the service life of the water pump can be extended. However, the flange connection method commonly used between the impeller and the output shaft of the pump currently brings many inconveniences. This connection method not only makes the disassembly and assembly process of the impeller extremely cumbersome, but also adds many difficulties when disassembly and maintenance are required. In addition, the existing impeller design is relatively simple in structure and has a small inlet area, which leads to limited water flow, thereby affecting the water absorption capacity of the water pump and preventing the overall performance of the water pump from being fully utilized. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an ultra-high molecular weight polyethylene acid-resistant pump special impeller to solve the problems in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An impeller specially used for ultra-high molecular weight polyethylene acid-resistant pumps comprises a casing and an impeller disc, wherein the impeller disc is rotatably connected to the casing via a rotating shaft, guide blocks are fixedly connected to both sides of the rotating shaft, a through hole is provided inside the impeller disc, one side of the rotating shaft is movably connected to the through hole, guide grooves are provided on both sides of the inner walls of the through hole, the guide blocks are movably connected to the guide grooves, a screw is rotatably connected inside the guide block, a first slider is threadedly connected to the outer surface of the screw, the first slider is slidably connected to the inside of the guide block, a resistance block is provided on one side of the first slider, a connecting assembly is provided between the resistance block and the guide block, one side of the resistance block is movably connected to one side of the impeller disc, a first blade is fixedly connected to one end of the impeller disc away from the casing, a second blade is fixedly connected to the recess of the first blade, and a plurality of the first blade and the second blade are provided.

[0008] As a preferred technical solution, one end of the screw is fixedly connected to a twist wheel, and one end of the twist wheel is provided with a slot.

[0009] As a preferred technical solution, a sliding rod is fixedly connected inside the guide block, and two sliding rods are provided on the opposite side of the screw rod, and the first sliding block is slidably connected to the sliding rod.

[0010] As a preferred technical solution, the connecting component includes a connecting groove, which is opened on both sides of one end of the first sliding block, one end of the abutment block is fixedly connected to a connecting block, and the connecting block is movably connected to the connecting groove.

[0011] As a preferred technical solution, a card hole is opened inside the connecting block, a card block is carded inside the card hole, one end of the card block is fixedly connected to a second slider, one end of the second slider is fixedly connected to a spring, and a spacer is fixedly connected to the inside of the guide block, and one end of the spring is fixedly connected to one end of the spacer.

[0012] As a preferred technical solution, limiting grooves are provided on both sides of the guide block, and one side of the second sliding block is slidably connected to the limiting grooves.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] First, in the utility model, by rotating the screw in the guide block, the first slider is threaded on the screw, and the first slider is connected to the resistance block through the connecting assembly. When the screw rotates in the guide block, the first slider on the surface of the screw slides in the guide block, so that the first slider drives the resistance block to move, and the resistance block abuts against the impeller disk, so that the impeller disk and the rotating shaft are fixed. This design is not only convenient for fixing the impeller, but also convenient for disassembling the impeller for maintenance, which is very simple and improves the efficiency of disassembling and assembling the impeller on the pump housing;

[0015] Second, in the utility model, by fixing multiple first blades on the impeller disk, increasing the number of first blades can improve the water absorption capacity of the water pump, and fixing multiple second blades on the first blades to form a flow channel can guide the water flow, increase the inlet area of ​​the impeller, and improve the water absorption capacity of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a side structural schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of one side of the rotating shaft of the utility model;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0020] Figure 5 It is a schematic diagram of the local structure of the guide block of the utility model.

[0021] 1. Shell; 2. Rotating shaft; 3. Impeller disk; 4. Through hole; 5. First blade; 6. Second blade; 7. Guide groove; 8. Guide block; 9. Screw; 10. First slider; 11. Resistance block; 12. Torsion wheel; 13. Slot; 14. Slide rod; 15. Connecting assembly; 151. Connecting block; 152. Clamp hole; 153. Connecting groove; 154. Clamp block; 155. Second slider; 156. Spring; 157. Spacer; 16. Limiting groove. DETAILED DESCRIPTION

[0022] Example

[0023] refer to Figures 1 to 5The ultra-high molecular weight polyethylene acid-resistant pump special impeller described in this embodiment includes a housing 1 and an impeller disc 3. The impeller disc 3 is rotatably connected to the housing 1 through a rotating shaft 2. A truncated cone is fixed on one side of the rotating shaft 2, and the impeller disc 3 abuts on the truncated cone to be fixed on the rotating shaft 2. Guide blocks 8 are fixedly connected to both sides of the rotating shaft 2. A through hole 4 is provided inside the impeller disc 3. One side of the rotating shaft 2 is movably connected to the through hole 4. Guide grooves 7 are provided on both sides of the inner walls of the through hole 4. The guide blocks 8 are movably connected to the guide grooves 7. A screw rod 9 is rotatably connected inside the guide block 8. A first slider 10 is threadedly connected to the outer surface of the screw rod 9. The first slider 10 is slidably connected to the inside of the guide block 8. A resistance block 11 is provided on one side of the first slider 10. The resistance block 11 is I-shaped, which is convenient for pinching the resistance block 11. A connecting component 15 is provided between the resistance block 11 and the guide block 8. One side of the resistance block 11 is movably connected to one side of the impeller disc 3. The impeller disc 3 The first blade 5 is fixedly connected to one end away from the housing 1, and the second blade 6 is fixedly connected to the concave part of the first blade 5. The first blade 5 and the second blade 6 are both provided with a plurality of them, and the first blade 5 and the second blade 6 are both curved. This design can reduce the pressure drop of the fluid on the blades, reduce energy loss, and improve the efficiency of the water pump. It should be noted that the housing 1, the impeller disc 3, the first blade 5, and the second blade 6 use ultra-high molecular weight polyethylene as the main material. This material has extremely high wear resistance, impact resistance and corrosion resistance, and is particularly suitable for processing corrosive media. Through the above settings, the disassembly and assembly process of the impeller disc 3 becomes very simple, especially when disassembly and maintenance are required, which is more time-saving and labor-saving, and reduces complexity. A plurality of first blades 5 and second blades 6 are fixed on the impeller disc 3. When the number of blades of the water pump increases, the energy received by each blade is correspondingly reduced, but the pressure of the rotor on the fluid will be more stable. This design can improve the working efficiency of the water pump, because more blades can more effectively guide the water flow into the pump body.

[0024] refer to Figure 4 One end of the screw rod 9 is fixedly connected to a twist wheel 12, and one end of the twist wheel 12 is provided with a slot 13; by setting the twist wheel 12 to connect the screw rod 9, and providing the slot 13 on the twist wheel 12, the twist wheel 12 can be rotated with the help of a slotted screwdriver, so that the twist wheel 12 drives the screw rod 9 to rotate, and there is no need to remove the screw 9 to prevent loss.

[0025] refer to Figure 4 A slide rod 14 is fixedly connected to the inside of the guide block 8, and two slide rods 14 are provided on the opposite side of the screw rod 9, and the first slider 10 is slidably connected to the slide rod 14; by fixing the slide rod 14 in the guide block 8, the movement of the guide block 8 is more stable.

[0026] refer to Figure 4-5The connecting assembly 15 includes a connecting groove 153, which is provided on both sides of one end of the first slider 10, and a connecting block 151 is fixedly connected to one end of the abutting block 11, and the connecting block 151 is movably connected to the connecting groove 153. A clamping hole 152 is provided inside the connecting block 151, and a clamping block 154 is clamped inside the clamping hole 152. One end of the clamping block 154 is fixedly connected to a second slider 155, and one end of the second slider 155 is fixedly connected to a spring 156. A spacer 157 is fixedly connected to the inside of the guide block 8, and one end of the spring 156 is fixedly connected to one end of the spacer 157. Limiting grooves 16 are provided on both sides of the inside of the guide block 8, and one side of the second slider 155 slides with the limiting groove 16. Dynamic connection; by providing the connecting block 151 and the connecting groove 153, the connection between the interference block 11 and the first slider 10 is convenient. The connecting block 151 is inserted into the connecting groove 153, the arc-shaped clamping block 154 is pushed, and the spring 156 is deformed, so that the clamping block 154 can be clamped into the clamping hole 152, so that the connecting block 151 and the connecting groove 153 are fixed, so that the interference block 11 and the first slider 10 are connected and fixed. By providing a limiting groove 16 in the guide block 8, the second slider 155 can slide more stably in the guide block 8, avoiding the second slider 155 from popping out under the action of the spring 156, and the sliding position is offset, resulting in the position of the clamping block 154 offset, which is conducive to the docking of the clamping block 154 with the clamping hole 152.

[0027] Principle and advantages of use: the impeller disc 3 is connected to the rotating shaft 2 on the housing 1 through the through hole 4, the guide block 8 is connected to the guide groove 7, and then the resistance block 11 is moved to one side of the guide block 8, and the resistance block 11 is pressed downward to insert the connecting block 151 at the bottom of the resistance block 11 into the connecting groove 153 of the first slider 10. At this time, the clamping block 154 is squeezed, and the clamping block 154 pushes the second slider 155, and the second slider 155 pushes the spring 156 to deform. The clamping block 154 is clamped into the clamping hole 152 under the action of the spring 156, so that the resistance block 11 is fixed on the first slider 10, and then the torsion wheel 12 is rotated. The torsion wheel 12 drives the screw 9 to rotate, so that the first slider 10 on the screw 9 moves, and the first slider 10 drives the abutment block 11 to abut against the impeller disk 3, fix the impeller disk 3, and prevent the impeller disk 3 from falling. Therefore, this design is not only convenient for fixing the impeller, but also convenient for disassembling the impeller for maintenance. It is very simple and improves the efficiency of disassembly and assembly of the impeller on the pump housing 1. By fixing multiple first blades 5 on the impeller disk 3, increasing the number of first blades 5 can improve the water suction capacity of the water pump, and fixing multiple second blades 6 on the first blades 5 to form a flow channel can guide the water flow, increase the inlet area of ​​the impeller, and improve the water suction capacity of the water pump.

Claims

1. An ultra-high molecular weight polyethylene acid-resistant pump impeller, comprising a housing (1) and an impeller disk (3), characterized in that: The impeller disc (3) is rotatably connected to the housing (1) via a rotating shaft (2); guide blocks (8) are fixedly connected to both sides of the rotating shaft (2); a through hole (4) is provided inside the impeller disc (3); one side of the rotating shaft (2) is movably connected to the through hole (4); guide grooves (7) are provided on both sides of the inner wall of the through hole (4); the guide blocks (8) are movably connected to the guide grooves (7); a screw rod (9) is rotatably connected inside the guide block (8); a first slider (10) is threadedly connected to the outer surface of the screw rod (9); The first slider (10) is slidably connected inside the guide block (8); a resistance block (11) is provided on one side of the first slider (10); a connecting assembly (15) is provided between the resistance block (11) and the guide block (8); one side of the resistance block (11) is movably connected to one side of the impeller disk (3); a first blade (5) is fixedly connected to one end of the impeller disk (3) away from the housing (1); a second blade (6) is fixedly connected to a recess of the first blade (5); and a plurality of the first blade (5) and the second blade (6) are provided.

2. The ultra-high molecular weight polyethylene acid-resistant pump impeller according to claim 1, characterized in that: One end of the screw rod (9) is fixedly connected to a twist wheel (12), and one end of the twist wheel (12) is provided with a slot (13).

3. The ultra-high molecular weight polyethylene acid-resistant pump impeller according to claim 1, characterized in that: A sliding rod (14) is fixedly connected inside the guide block (8), and two sliding rods (14) are provided on the opposite side of the screw rod (9), and the first sliding block (10) is slidably connected to the sliding rod (14).

4. The ultra-high molecular weight polyethylene acid-resistant pump impeller according to claim 1, characterized in that: The connecting assembly (15) comprises a connecting groove (153), wherein the connecting groove (153) is provided on both sides of one end of the first sliding block (10), one end of the abutting block (11) is fixedly connected to a connecting block (151), the connecting block (151) is movably connected to the connecting groove (153), a clamping hole (152) is provided inside the connecting block (151), and a clamping block (154) is clamped inside the clamping hole (152).

5. The ultra-high molecular weight polyethylene acid-resistant pump special impeller according to claim 4, characterized in that: One end of the clamping block (154) is fixedly connected to a second sliding block (155), and one end of the second sliding block (155) is fixedly connected to a spring (156).

6. The ultra-high molecular weight polyethylene acid-resistant pump special impeller according to claim 5, characterized in that: A spacer (157) is fixedly connected inside the guide block (8), and one end of the spring (156) is fixedly connected to one end of the spacer (157).

7. The ultra-high molecular weight polyethylene acid-resistant pump impeller according to claim 5, characterized in that: Limiting grooves (16) are provided on both sides of the guide block (8), and one side of the second sliding block (155) is slidably connected to the limiting groove (16).

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