Plug-in type shaft for magnetic pump

Abstract

The utility model discloses a kind of pluggable shaft for magnetic pump, including shaft and back cover, the shaft insertion the center of the back cover, with the back cover form connection;The center of the back cover is provided with connecting hole, the connecting hole with the shaft cooperation, the shaft and connecting hole are connected by friction force each other.The utility model provides a kind of pluggable shaft for magnetic pump, change traditional fixed connection of shaft into the movable connection of friction force, to realize shaft pluggable replacement, and in order to not affect the normal use of shaft, set up connecting ring in connecting hole, and shot peening treatment is carried out to connecting hole, improve the friction force between connecting hole and shaft, guarantee the normal use of magnetic pump shaft.

Description

Technical Field

[0001] This utility model relates to a pluggable shaft for a magnetic pump. Background Technology

[0002] Currently, magnetic pump structures typically fix the pump's shaft at the center of the back cover, thus defining the entire assembly process. Since the shaft not only inserts into the back cover for fixation but also rotates, it needs to be fixedly connected to the back cover while reducing rotational friction.

[0003] As a critical component, the shaft needs immediate replacement once it wears out, rendering it unusable. However, the traditional connection method involves a fixed connection between the shaft and the back cover via grooves and bosses (e.g., Figure 1 and 2 As shown in the image, the magnetic pump becomes unusable once the shaft needs to be replaced, requiring damage to the back cover or the shaft, which affects its reuse.

[0004] However, relying solely on traditional friction for connection will also cause instability in the connection of the shaft, affecting the use of the magnetic pump. Therefore, a structure is needed that can both stabilize the connection between the shaft and the back cover and facilitate the insertion and removal of the shaft. Summary of the Invention

[0005] This utility model aims to provide a pluggable shaft for a magnetic pump. By eliminating the traditional connecting groove and boss between the shaft and the back cover, and setting the connection of the back cover as an elastic structure, the friction of the traditional plug-in point is greatly enhanced, and the stability of the shaft installation is improved.

[0006] To solve the above problems, the present invention provides a pluggable shaft for a magnetic pump, which adopts the following technical solution: A pluggable shaft for a magnetic pump includes a shaft and a rear cover. The shaft is inserted into the center of the rear cover and connected to the rear cover. The center of the rear cover is provided with a connecting hole, which mates with the shaft. The shaft and the connecting hole are connected to each other by friction. A reinforcing support is provided inside the rear cover. The reinforcing support is located on the outer wall of the connecting hole, and one end is connected to the connecting hole.

[0007] Furthermore, the connecting hole is shot peened.

[0008] Furthermore, multiple reinforcing supports are provided, arranged in a ring on the outer circumference of the connecting hole, to enhance the frictional pressure between the connecting hole and the shaft.

[0009] Furthermore, a connecting ring is provided inside the connecting hole, the outer circle of the connecting ring being interference-fitted with the inner wall of the connecting hole, and the inner wall being clearance-fitted with the outer circle of the shaft.

[0010] Furthermore, a connecting bearing is provided above the connecting hole, and the connecting bearing is connected to the rear cover and the shaft.

[0011] Furthermore, the inner arm of the connecting ring is provided with a friction groove to enhance the friction between the connecting ring and the shaft.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a pluggable shaft for a magnetic pump, which changes the traditional fixed connection of the shaft to a frictional movable connection, thereby realizing the pluggable replacement of the shaft. In order not to affect the normal use of the shaft, a connecting ring is set in the connecting hole, and the connecting hole is shot peened to increase the friction between the connecting hole and the shaft, ensuring the normal use of the magnetic pump shaft. Attached Figure Description

[0013] Appendix Figure 1 This is a cross-sectional view of the conventional structure of this utility model.

[0014] Appendix Figure 2 This is an enlarged view of point A in the conventional structure of this utility model.

[0015] Appendix Figure 3 This is a cross-sectional view of the present invention.

[0016] Appendix Figure 4 This is an enlarged view of section B of this utility model.

[0017] The components are: 1. shaft, 2. back cover, 3. connecting hole, 4. reinforcing support, 5. connecting ring, 6. connecting bearing, and 7. friction groove. Detailed Implementation

[0018] To better understand the technical solution provided by this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] As shown in the attached figure, the present invention provides a pluggable shaft for a magnetic pump, including a shaft 1 and a rear cover 2. The shaft 1 is inserted into the center of the rear cover 2 and forms a connection with the rear cover 2. A connecting hole 3 is provided in the center of the rear cover 2. The connecting hole 3 cooperates with the shaft 1, and the shaft 1 and the connecting hole 3 are connected to each other by friction. A reinforcing support 4 is provided inside the rear cover 2. The reinforcing support 4 is located on the outer wall of the connecting hole 3, with one end connected to the connecting hole 3 and the other end connected to the connecting hole 3.

[0020] Furthermore, the connecting hole 3 is shot peened.

[0021] Furthermore, multiple reinforcing supports 4 are provided, arranged in a ring on the outer circumference of the connecting hole 3, to enhance the frictional pressure between the connecting hole 3 and the shaft 1.

[0022] Furthermore, a connecting ring 5 is provided inside the connecting hole 3. The outer circle of the connecting ring 5 is interference-fitted with the inner wall of the connecting hole 3, and the inner wall is clearance-fitted with the outer circle of the shaft 1.

[0023] Furthermore, a connecting bearing 6 is provided above the connecting hole 3, and the connecting bearing 6 is connected to the rear cover 2 and the shaft 1.

[0024] Furthermore, the inner arm of the connecting ring 5 is provided with a friction groove 7 to enhance the friction between the connecting ring 5 and the shaft 1.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A pluggable shaft for a magnetic pump, characterized in that, It includes a shaft and a back cover. The shaft is inserted into the center of the back cover and forms a connection with the back cover. The center of the back cover is provided with a connecting hole, which mates with the shaft. The shaft and the connecting hole are connected to each other by friction. A reinforcing support is provided inside the rear cover. The reinforcing support is located on the outer wall of the connecting hole, and one end is connected to the connecting hole.

2. The pluggable shaft for a magnetic pump according to claim 1, characterized in that, The connecting hole is shot peened.

3. The pluggable shaft for a magnetic pump according to claim 1, characterized in that, Multiple reinforcing supports are provided and are distributed in a ring on the outer circumference of the connecting hole to enhance the frictional pressure between the connecting hole and the shaft.

4. The pluggable shaft for a magnetic pump according to claim 1, characterized in that, A connecting ring is provided in the connecting hole, the outer circle of the connecting ring is interference-fitted with the inner wall of the connecting hole, and the inner wall is clearance-fitted with the outer circle of the shaft.

5. A pluggable shaft for a magnetic pump according to claim 1, characterized in that, A connecting bearing is provided above the connecting hole, and the connecting bearing is connected to the rear cover and the shaft.

6. A pluggable shaft for a magnetic pump according to claim 4, characterized in that, The inner arm of the connecting ring is provided with a friction groove to enhance the friction between the connecting ring and the shaft.

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