Anti-falling shaft

Abstract

The utility model relates to the technical field of water pump shafts, in particular to an anti-falling shaft which can effectively prevent the shaft from loosening caused by high-speed operation of a rotor after the shaft is coated with plastic. Comprising a body mechanism; the water pump further comprises a connecting mechanism, the main body mechanisms are connected together through the connecting mechanism, the main body mechanisms assist the water pump to work normally, and the main body mechanisms are connected through the connecting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump shafts, in particular to an anti-loosening shaft. Background Art

[0002] The safety of new energy vehicles has always been a topic of concern to the public. Similarly, the safety of sub-components cannot be ignored.

[0003] The existing water pump shaft, such as the prior art with the application number CN200820016947.1, includes a pump shaft body and a chromium ion layer. Since a chromium ion layer is coated on the outer surface of the easily worn part of the pump shaft through chrome plating treatment, the chromium ion layer has strong wear resistance, so as to achieve wear resistance, friction reduction and mating performance, and has the effects of simple and practical structure, convenient processing and strong practicability, and can effectively increase the service life of the pump shaft.

[0004] However, generally, the shaft that does not control the water pump will be integrally injection-molded with the waterproof chamber. When the water pump rotor rotates at a high speed around the shaft, once particulate debris enters the circulating water path, it will cause eccentric wear between the rotor and the shaft. At this time, the rotor will have the risk of colliding with the shaft. During the use of the water pump, as the number of collisions increases, there will be a possibility of loosening, and this loosening is irreversible, which will ultimately lead to the failure of the water pump and the vehicle cooling system, bringing a bad experience to customers. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides an anti-loosening shaft that can effectively prevent the shaft from loosening due to the high-speed rotation of the rotor after shaft plastic coating.

[0006] An anti-loosening shaft of the utility model includes a main body mechanism; it also includes a connecting mechanism. The main body mechanisms are connected together through the connecting mechanism. The main body mechanism assists the water pump to work normally, and the connecting mechanism connects the main body mechanisms; the main body mechanism assists the water pump to work normally, and the connecting mechanism connects the main body mechanisms, preventing the main body mechanism from falling off in the axial direction, and also helping to prevent the main body mechanism from loosening in the radial direction, improving practicability, ensuring the safety of the shaft, and effectively reducing the risk of loosening.

[0007] Preferably, the main body mechanism includes a shaft and a plastic-coated plastic block. The shaft and the plastic-coated plastic block are connected through a connecting mechanism; the shaft and the plastic-coated plastic block assist the water pump to work normally to convey water.

[0008] Preferably, the connecting mechanism includes a shaft connecting part and a plastic block connecting part. The shaft connecting part is installed on the shaft, and the plastic block connecting part is arranged on the plastic-coated plastic block; the shaft connecting part is wrapped by the plastic block connecting part on the plastic-coated plastic block to complete plastic coating, and then the connection between the shaft and the plastic-coated plastic block is completed.

[0009] Preferably, the shaft connection part is designed as a slope; through the above settings, it helps to prevent detachment in the axial direction of the shaft and also helps to loosen in the radial direction of the shaft, effectively reducing the risk of loosening.

[0010] Preferably, all the positions where the shaft connection part and the plastic block connection part are plastically coated and connected are processed into knurling; through the above settings and the bevel settings, the safety of the shaft can be ensured doubly. After plastic coating molding, the anti-detachment of the shaft can be effectively realized.

[0011] Preferably, a notch groove is provided on the shaft connection part; through the above settings, it is used for fixing and preventing rotation. The bevel part of the shaft is entirely plastically coated in the plastic. Whether the rotor direction is clockwise or counterclockwise, it basically has no influence on the life of the entire shaft.

[0012] Preferably, the slope angle > 5°; through the above settings, axial loosening is prevented.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the main body mechanism is assisted to work normally through the main body mechanism, and the main body mechanism is connected through the connecting mechanism, preventing the main body mechanism from detaching in the axial direction and also helping to loosen in the radial direction of the main body mechanism, improving the practicability, ensuring the safety of the shaft, and effectively reducing the risk of loosening. Brief Description of the Drawings

[0014] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0015] Figure 2 is an isometric structural schematic diagram of the shaft and the shaft connection part of the present utility model;

[0016] Figure 3 is a first sectional isometric structural schematic diagram of the present utility model;

[0017] Figure 4 is a second sectional isometric structural schematic diagram of the present utility model;

[0018] Reference numerals in the drawings: 01, main body mechanism; 1, shaft; 2, plastically coated plastic block; 3, shaft connection part; 4, plastic block connection part; 5, notch groove; 02, connecting mechanism. Detailed Description of the Embodiments

[0019] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0020] Embodiment 1

[0021] As Figures 1 to 4As shown, an anti - detachment shaft includes a main body mechanism 01 and also includes a connecting mechanism 02. The main body mechanism 01 is connected together through the connecting mechanism 02;

[0022] The main body mechanism 01 assists the water pump to work normally, and the connecting mechanism 02 connects the main body mechanism 01;

[0023] The main body mechanism 01 includes a shaft 1 and a plastic - coated plastic block 2. The shaft 1 and the plastic - coated plastic block 2 are connected through the connecting mechanism 02;

[0024] The connecting mechanism 02 includes a shaft connecting part 3 and a plastic - block connecting part 4. The shaft connecting part 3 is installed on the shaft 1, and the plastic - block connecting part 4 is arranged on the plastic - coated plastic block 2;

[0025] The shaft connecting part 3 is designed with a slope;

[0026] The slope angle > 5°;

[0027] The shaft 1 and the plastic - coated plastic block 2 assist the water pump to work normally to convey water. The shaft connecting part 3 is wrapped by the plastic - block connecting part 4 on the plastic - coated plastic block 2 to complete the plastic coating, and then the connection between the shaft 1 and the plastic - coated plastic block 2 is completed. The slope design of the shaft connecting part 3 helps to prevent detachment in the axial direction of the shaft 1 and also helps to prevent loosening in the radial direction of the shaft 1, effectively reducing the risk of loosening. By the slope angle > 5°, axial loosening is prevented.

[0028] Embodiment 2

[0029] As Figures 1 to 4 shown, an anti - detachment shaft includes a main body mechanism 01 and also includes a connecting mechanism 02. The main body mechanism 01 is connected together through the connecting mechanism 02;

[0030] The main body mechanism 01 assists the water pump to work normally, and the connecting mechanism 02 connects the main body mechanism 01;

[0031] The main body mechanism 01 includes a shaft 1 and a plastic - coated plastic block 2. The shaft 1 and the plastic - coated plastic block 2 are connected through the connecting mechanism 02;

[0032] The connecting mechanism 02 includes a shaft connecting part 3 and a plastic - block connecting part 4. The shaft connecting part 3 is installed on the shaft 1, and the plastic - block connecting part 4 is arranged on the plastic - coated plastic block 2;

[0033] All the positions where the shaft connecting part 3 and the plastic - block connecting part 4 are plastically - coated and connected are processed into knurling;

[0034] A notch groove 5 is arranged on the shaft connecting part 3;

[0035] All the positions where the shaft connecting part 3 and the plastic block connecting part 4 are connected by overmolding are processed with knurling and bevel settings, which can double ensure the safety of the shaft. After overmolding, the anti - detachment of the shaft 1 can be effectively realized. There is a notch groove 5 provided on the shaft connecting part 3 for anti - rotation fixation. The bevel part of the shaft is entirely overmolded in the plastic. Whether the rotor rotates clockwise or counterclockwise, it has basically no impact on the life of the entire shaft.

[0036] As Figures 1 to 4 shown, for an anti - detachment shaft of the present utility model, during operation, the shaft 1 and the overmolded plastic block 2 assist the water pump to work properly for water transportation. The shaft connecting part 3 is wrapped by the plastic block connecting part 4 on the overmolded plastic block 2 to complete overmolding, thereby completing the connection between the shaft 1 and the overmolded plastic block 2. Since the shaft connecting part 3 is designed with a slope, it helps to prevent detachment in the axial direction of the shaft 1 and also helps to prevent loosening in the radial direction of the shaft 1, effectively reducing the risk of loosening. By having a slope angle > 5°, axial loosening is prevented. All the positions where the shaft connecting part 3 and the plastic block connecting part 4 are connected by overmolding are processed with knurling and bevel settings, which can double ensure the safety of the shaft. After overmolding, the anti - detachment of the shaft 1 can be effectively realized. There is a notch groove 5 provided on the shaft connecting part 3 for anti - rotation fixation. The bevel part of the shaft is entirely overmolded in the plastic. Whether the rotor rotates clockwise or counterclockwise, it has basically no impact on the life of the entire shaft.

[0037] The main function achieved by the present utility model is: during the operation of the water pump shaft, it can effectively prevent the shaft from loosening after overmolding due to the high - speed rotation of the rotor.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An anti-slip shaft, comprising a main body mechanism (01); characterized in that: It also includes a connecting mechanism (02), and the main body mechanism (01) is connected together through the connecting mechanism (02); The main body mechanism (01) assists the water pump in normal operation and is connected to the main body mechanism (01) via the connecting mechanism (02).

2. The anti-slip shaft according to claim 1, characterized in that: The main body mechanism (01) comprises a shaft (1) and a plastic block (2) covered with plastic, and the shaft (1) and the plastic block (2) covered with plastic are connected via a connecting mechanism (02).

3. The anti-slip shaft according to claim 2, characterized in that: The connecting mechanism (02) comprises an axle connecting part (3) and a plastic block connecting part (4), wherein the axle connecting part (3) is mounted on the axle (1), and the plastic block connecting part (4) is arranged on the overmolded plastic block (2).

4. The anti-slip shaft according to claim 3, characterized in that: The shaft connection part (3) is designed as a slope.

5. The anti-slip shaft according to claim 3, characterized in that: The locations where the shaft connection part (3) and the plastic block connection part (4) are connected by plastic coating are all processed into knurling.

6. The anti-slip shaft according to claim 3, characterized in that: A notch groove (5) is provided on the shaft connection portion (3).

7. The anti-slip shaft according to claim 4, characterized in that: Slope angle >5°.

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