High-strength water pump shaft

Abstract

The utility model discloses a high-strength water pump shaft, which relates to the field of water pump shafts and comprises a water pump shaft main body, an inserting hole is arranged in the water pump shaft main body, an epoxy resin and metal powder composite rod is inserted in the inserting hole, and a plurality of movable connecting blocks are movably arranged on the epoxy resin and metal powder composite rod. The water pump shaft body is of a hollow structure, the multiple movable connecting blocks are annularly distributed, each movable connecting block is composed of a movable clamping block and a T-shaped connecting block, each T-shaped connecting block is fixedly installed at one end of the corresponding movable clamping block, and blocking bolts are installed on the epoxy resin and metal powder composite rod and between the multiple movable connecting blocks. The inertia moment of the hollow water pump shaft body is higher than that of a solid water pump shaft body, meanwhile, the epoxy resin and metal powder composite rod is arranged in the hollow water pump shaft body, the flexural rigidity and torsional rigidity of the water pump shaft body can be remarkably improved, and therefore it can be ensured that a water pump operates more stably.

Description

Technical Field

[0001] This utility model relates to the field of water pump shafts, and in particular to a high-strength water pump shaft. Background Technology

[0002] The pump shaft is a key component of a water pump, primarily responsible for transmitting power. One end is connected to the motor shaft via a coupling, while the other end supports the rotor's rotational motion. Bearings, axial seals, and other components are mounted on the shaft. The pump shaft must possess sufficient strength and rigidity to ensure stable pump operation. During pump operation, the pump bearings are subjected to significant torque and axial force; therefore, their quality and performance have a crucial impact on the overall performance of the pump. Hence, this application proposes a high-strength pump shaft. Utility Model Content

[0003] The main objective of this invention is to provide a high-strength water pump shaft, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-strength water pump shaft includes a water pump shaft body with an insertion hole inside the water pump shaft body. An epoxy resin and metal powder composite rod is inserted into the insertion hole. A plurality of movable connecting blocks are movably mounted on the epoxy resin and metal powder composite rod. The plurality of movable connecting blocks are arranged in a ring. Each movable connecting block consists of a movable locking block and a T-shaped connecting block. The T-shaped connecting block is fixedly mounted on one end of the movable locking block. A blocking bolt is installed on the epoxy resin and metal powder composite rod and between the plurality of movable connecting blocks.

[0006] Preferably, the insertion hole passes through both ends of the pump shaft body, and the pump shaft body is coaxial with the insertion hole.

[0007] Preferably, the pump shaft body has mounting grooves at both ends, and the mounting grooves are also formed on the inner wall of the insertion hole.

[0008] Preferably, the epoxy resin and metal powder composite rod has two symmetrically opened mounting threaded holes at both ends, and several T-shaped connecting guide grooves are opened at both ends of the epoxy resin and metal powder composite rod. The several T-shaped connecting guide grooves are arranged in a ring, and the mounting threaded holes are located between the several T-shaped connecting guide grooves arranged in a ring.

[0009] Preferably, the T-shaped connecting block on the movable connecting block is slidably installed in the T-shaped connecting guide groove opened on the end face of the epoxy resin and metal powder composite rod, the movable locking block is in contact with the end face of the epoxy resin and metal powder composite rod, and the movable locking block is simultaneously embedded in the mounting groove opened on the water pump shaft body.

[0010] Preferably, the blocking bolt consists of an internal hexagonal rotating block and a mounting threaded post. The mounting threaded post is fixedly installed at one end of the internal hexagonal rotating block and is also installed in a mounting threaded hole opened on the water pump shaft body. The internal hexagonal rotating block is located between several movable locking blocks on several movable connecting blocks.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By designing the pump shaft body as a hollow structure, the moment of inertia of the hollow pump shaft body is higher than that of the solid one. At the same time, by setting an epoxy resin and metal powder composite rod inside the hollow pump shaft body, the bending stiffness and torsional stiffness of the pump shaft body can be significantly improved, thereby ensuring more stable operation of the pump. By setting a movable connecting block and a blocking bolt on the epoxy resin and metal powder composite rod, the epoxy resin and metal powder composite rod can be stably connected to the pump shaft body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 The intention to magnify point A;

[0015] Figure 3 This is a cross-sectional view of the main body of the water pump shaft of this utility model;

[0016] Figure 4 This is a schematic diagram showing the positional relationship between the epoxy resin and metal powder composite rod, the movable connecting block, and the blocking bolt of this utility model.

[0017] Figure 5 This is a schematic diagram of the disassembled structure of the metal powder composite rod, the movable connecting block, and the blocking bolt of this utility model.

[0018] In the diagram: 1. Pump shaft body; 2. Epoxy resin and metal powder composite rod; 3. Moving connecting block; 4. Blocking bolt; 5. Insertion hole; 6. Embedding groove; 7. T-shaped connecting guide groove; 8. Mounting threaded hole; 9. Moving locking block; 10. T-shaped connecting block; 11. Hexagonal socket rotating block; 12. Mounting threaded post. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a high-strength water pump shaft includes a water pump shaft body 1. An insertion hole 5 is provided inside the water pump shaft body 1. An epoxy resin and metal powder composite rod 2 is inserted into the insertion hole 5. Several movable connecting blocks 3 are movably mounted on the epoxy resin and metal powder composite rod 2, arranged in a ring. Each movable connecting block 3 consists of a movable locking block 9 and a T-shaped connecting block 10. The T-shaped connecting block 10 is fixedly installed at one end of the movable locking block 9. Blocking bolts 4 are installed on the epoxy resin and metal powder composite rod 2 and between the movable connecting blocks 3. During assembly and use, the connection can be first... Ensure that the multiple movable connecting blocks 3 arranged in a ring are retracted together. Then, insert the epoxy resin and metal powder composite rod 2 into the insertion hole 5 opened on the water pump shaft body 1. Then, move the movable connecting block 3 so that the movable locking block 9 on the movable connecting block 3 is embedded in the water pump shaft body 1. Finally, fix the blocking bolt 4 on the epoxy resin and metal powder composite rod 2, and make the internal hexagonal rotating block 11 located between the movable locking blocks 9 on the movable connecting blocks 3. At this time, the epoxy resin and metal powder composite rod 2 is fixed in the water pump shaft body 1.

[0021] By designing the water pump shaft body 1 as a hollow structure, the moment of inertia of the hollow water pump shaft body 1 is higher than that of the solid one. At the same time, by setting the epoxy resin and metal powder composite rod 2 inside the hollow water pump shaft body 1, the bending stiffness and torsional stiffness of the water pump shaft body 1 can be significantly improved, thereby ensuring more stable operation of the water pump. By setting the movable connecting block 3 and the blocking bolt 4 on the epoxy resin and metal powder composite rod 2, the epoxy resin and metal powder composite rod 2 can be stably connected to the water pump shaft body 1.

[0022] Specifically, the insertion hole 5 passes through both ends of the water pump shaft body 1, and the water pump shaft body 1 is coaxial with the insertion hole 5. The two ends of the water pump shaft body 1 are provided with mounting grooves 6, which are also provided on the inner wall of the insertion hole 5. The two ends of the epoxy resin and metal powder composite rod 2 are symmetrically provided with two mounting threaded holes 8. The two ends of the epoxy resin and metal powder composite rod 2 are provided with several T-shaped connecting guide grooves 7, which are arranged in a ring. The mounting threaded holes 8 are located between the several T-shaped connecting guide grooves 7 arranged in a ring. The diameter of the epoxy resin and metal powder composite rod 2 must be the same as the diameter of the insertion hole 5, so as to ensure that when the epoxy resin and metal powder composite rod 2 is inserted into the insertion hole 5, it can be in close contact with the water pump shaft body 1.

[0023] Specifically, the T-shaped connecting block 10 on the movable connecting block 3 is slidably installed in the T-shaped connecting guide groove 7 opened on the end face of the epoxy resin and metal powder composite rod 2. The movable locking block 9 contacts the end face of the epoxy resin and metal powder composite rod 2, and the movable locking block 9 is simultaneously embedded in the mounting groove 6 opened on the water pump shaft body 1. When it is necessary to insert the epoxy resin and metal powder composite rod 2 into the mounting hole 5 opened on the water pump shaft body 1, or to pull the epoxy resin and metal powder composite rod 2 out of the mounting hole 5, the movable connecting block 10 must first be inserted into the mounting hole 5 opened on the water pump shaft body 1. The connecting block 3 moves, causing the several moving blocks 9 on the several moving connecting blocks 3 arranged in a ring to gather together, thereby preventing the moving blocks 9 from failing to pass through the insertion hole 5 when moving the epoxy resin and metal powder composite rod 2; when it is necessary to fix the epoxy resin and metal powder composite rod 2 in the insertion hole 5, the moving connecting block 3 needs to be moved on the epoxy resin and metal powder composite rod 2, so that the T-shaped connecting block 10 slides in the T-shaped connecting guide groove 7, and finally the moving blocks 9 are embedded in the mounting groove 6.

[0024] Specifically, the blocking bolt 4 consists of an internal hexagonal rotating block 11 and a mounting threaded post 12. The mounting threaded post 12 is fixedly installed at one end of the internal hexagonal rotating block 11 and is also installed in the mounting threaded hole 8 opened on the water pump shaft body 1. The internal hexagonal rotating block 11 is located between several movable locking blocks 9 on several movable connecting blocks 3. After the movable locking block 9 is embedded in the mounting groove 6, in order to prevent the movable connecting block 3 from being easily moved by external force, the blocking bolt 4 can be installed between several movable connecting blocks 3. At this time, it is only necessary to install the mounting threaded post 12 into the mounting threaded hole 8 so that the internal hexagonal rotating block 11 is located between several movable locking blocks 9 on several movable connecting blocks 3. When it is necessary to gather several movable connecting blocks 3 that are distributed in a ring together, the blocking bolt 4 must first be removed from the epoxy resin and metal powder composite rod 2.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength water pump shaft comprising a water pump shaft body (1), characterized in that: The water pump shaft body (1) is provided with an inserting hole (5), and an epoxy resin and metal powder composite rod (2) is inserted into the inserting hole (5); a plurality of movable connecting blocks (3) are movably installed on the epoxy resin and metal powder composite rod (2); the movable connecting blocks (3) are annularly distributed; the movable connecting blocks (3) are composed of movable clamping blocks (9) and T-shaped connecting blocks (10); the T-shaped connecting blocks (10) are fixedly installed at one end of the movable clamping blocks (9); and a blocking bolt (4) is installed on the epoxy resin and metal powder composite rod (2) between the movable connecting blocks (3).

2. A high-strength water pump shaft as defined in claim 1, wherein: The inserting hole (5) penetrates through both ends of the water pump shaft body (1), and the water pump shaft body (1) is coaxial with the inserting hole (5).

3. A high-strength water pump shaft as defined in claim 2, wherein: Both ends of the water pump shaft body (1) are provided with embedding grooves (6), and the embedding grooves (6) are formed on the inner wall of the inserting hole (5).

4. A high-strength water pump shaft as defined in claim 3, wherein: Two mounting threaded holes (8) are symmetrically formed at both ends of the epoxy resin and metal powder composite rod (2); a plurality of T-shaped connecting guide grooves (7) are formed at both ends of the epoxy resin and metal powder composite rod (2); and the mounting threaded holes (8) are located between the plurality of T-shaped connecting guide grooves (7) which are annularly distributed.

5. A high-strength water pump shaft as defined in claim 4, wherein: The T-shaped connecting block (10) on the movable connecting block (3) is slidably installed in the T-shaped connecting guide groove (7) formed on the end face of the epoxy resin and metal powder composite rod (2); the movable clamping block (9) is in contact with the end face of the epoxy resin and metal powder composite rod (2); and the movable clamping block (9) is embedded in the embedding groove (6) formed on the water pump shaft body (1).

6. A high-strength water pump shaft as defined in claim 5, wherein: The blocking bolt (4) is composed of an inner hexagonal rotating block (11) and a mounting threaded column (12); the mounting threaded column (12) is fixedly installed at one end of the inner hexagonal rotating block (11); the mounting threaded column (12) is installed in the mounting threaded hole (8) formed on the water pump shaft body (1); and the inner hexagonal rotating block (11) is located between the plurality of movable clamping blocks (9) on the plurality of movable connecting blocks (3).

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