Water pump shaft core structure combined with shaft sleeve

Abstract

The utility model relates to the technical field of shaft sleeve combined water pump shaft core structures, in particular to a shaft sleeve combined water pump shaft core structure which prevents a shaft core from falling off, loosening and displacing and has a certain antirust function through a brand new pump shaft structure. Comprising a shaft core; the motor further comprises a threaded opening, an integral rotor, a zinc alloy shaft sleeve and a triangular disc, the threaded opening is arranged on the shaft core, the integral rotor is arranged on the shaft core, the zinc alloy shaft sleeve is installed on the integral rotor, and the triangular disc is installed on the zinc alloy shaft sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of a shaft-sleeve combined water pump shaft core structure, in particular to a shaft-sleeve combined water pump shaft core structure. Background Art

[0002] The electronic water pump delivers coolant to the vehicle's thermal management system, taking away most of the vehicle's heat and ensuring that the vehicle's electric drive system is in the optimal operating temperature range. In the industry, the main ways to embed the water pump shaft into the water pump are direct interference implantation of the shaft core or direct single-shaft core implantation and mold injection molding. The former two only rely on the knurling on the bottom of the shaft core to increase the bonding force. There are risks in the bonding force during the shaft core reinforcement process, and displacement may occur during the subsequent operation of the water pump.

[0003] In the existing shaft sleeve combined water pump shaft core structure, for example, a shaft sleeve combined water pump shaft core structure disclosed in the utility model patent with application number 202310586365.6, the shaft core of the invention connects the rotor chamber and the impeller chamber of the electronic water pump through the guide channel of the shaft core body, so that the liquid medium in the rotor chamber and the impeller chamber can flow quickly, thereby transferring the heat of the rotor chamber to the impeller chamber, or transferring the heat of the impeller chamber to the rotor chamber. In this way, the heat dissipation performance of the electronic water pump can be effectively improved, thereby improving the performance and service life of the electronic water pump.

[0004] However, during the use of the water pump shaft core structure combined with the shaft sleeve, the shaft core of the prior art is prone to loosening, falling off and displacement. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a water pump shaft core structure combined with a shaft sleeve, which prevents the shaft core from falling off, loosening and displacing and has a certain anti-rust function through a brand-new pump shaft structure.

[0006] The utility model discloses a water pump shaft core structure combined with a shaft sleeve, comprising a shaft core; further comprising a threaded opening, an integral rotor, a zinc alloy shaft sleeve and a triangular disc, wherein the threaded opening is arranged on the shaft core, the integral rotor is arranged on the shaft core, the zinc alloy shaft sleeve is mounted on the integral rotor, and the triangular disc is mounted on the zinc alloy shaft sleeve; the key points of the design are that a zinc alloy shaft sleeve is arranged at the connection between the bottom of the shaft core and the water pump main body casing, a triangular disc is arranged at the bottom end of the zinc alloy shaft sleeve, the shaft core and the pump casing connected as one are integrally injection molded, the shaft core riveted structure adopts a die-casting fixed shaft core solution, the shaft core is implanted into a mold for die-casting, so that the shaft core and the zinc alloy shaft sleeve are combined in the form of die-casting, the zinc alloy shaft sleeve is combined with the shaft core under the die-casting process, and the die-cast shaft core is designed to increase the requirements of the integral rotor for lateral structural strength and longitudinal structural tension, and the utility model prevents the shaft core from falling off, loosening and displacement through a brand-new pump shaft structure and has a certain anti-rust function.

[0007] Preferably, the shaft core and the pump casing are integrally injection molded, and the shaft core riveted structure adopts a die-casting solution to fix the shaft core, and the shaft core is implanted into a mold for die-casting; the shaft core is integrated with the casing through injection molding to increase the structural strength.

[0008] Preferably, a threaded opening is provided on the shaft core; threaded installation is performed through the threaded opening.

[0009] Preferably, the integral rotor is disposed on the shaft core; the die-cast shaft core is designed to increase the integral rotor so as to improve the structural strength.

[0010] Preferably, the shaft core and the zinc alloy sleeve are combined in the form of die-casting, and the zinc alloy sleeve is combined with the shaft core under the die-casting process; the requirement for lateral structural strength and the requirement for longitudinal structural tension are improved by cooperating the integral rotor and the zinc alloy sleeve.

[0011] Preferably, a triangular disc is provided at the bottom end of the zinc alloy sleeve; the zinc alloy sleeve is connected to the casing via the triangular disc.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the key point of the design is that a zinc alloy sleeve is provided at the connection between the bottom of the shaft core and the main casing of the water pump, and a triangular disc is provided at the bottom end of the zinc alloy sleeve. The shaft core and the pump casing are integrally injection molded, and the above-mentioned shaft core riveted structure adopts a die-casting fixed shaft core solution, and the shaft core is implanted into the mold for die-casting, so that the shaft core and the zinc alloy sleeve are combined in the form of die-casting, and the zinc alloy sleeve is combined with the shaft core under the die-casting process. The die-cast shaft core is designed to increase the overall rotor's requirements for lateral structural strength and longitudinal structural tension. The utility model uses a new pump shaft structure to prevent the shaft core from falling off, loosening and displacing and has a certain anti-rust function. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0014] Figure 2 It is a right-side sectional axonometric structural schematic diagram of the utility model;

[0015] Figure 3 It is a second axonometric structural schematic diagram of the utility model;

[0016] Markings in the attached figure: 1, shaft core; 2, threaded opening; 3, integral rotor; 4, zinc alloy sleeve; 5, triangular disc. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] Example 1

[0019] like Figures 1 to 3 As shown, a shaft-sleeve combined water pump shaft core structure includes a shaft core 1, a threaded opening 2, an integral rotor 3, a zinc alloy shaft sleeve 4 and a triangular disc 5, wherein the threaded opening 2 is arranged on the shaft core 1, the integral rotor 3 is arranged on the shaft core 1, the zinc alloy shaft sleeve 4 is mounted on the integral rotor 3, and the triangular disc 5 is mounted on the zinc alloy shaft sleeve 4;

[0020] The shaft core 1 and the pump housing are integrally injection molded, and the riveted structure of the shaft core 1 adopts a die-casting fixed shaft core solution, and the shaft core 1 is implanted into a mold for die-casting;

[0021] The threaded opening 2 is arranged on the shaft core 1;

[0022] The integral rotor 3 is arranged on the shaft core 1;

[0023] The shaft core 1 and the zinc alloy shaft sleeve 4 are combined in the form of die casting, and the zinc alloy shaft sleeve 4 is combined with the shaft core 1 in the process of die casting;

[0024] A triangular disc 5 is provided at the bottom end of the zinc alloy sleeve 4;

[0025] The key point of this design is that a zinc alloy sleeve 4 is provided at the connection between the bottom of the shaft core 1 and the main casing of the water pump, and a triangular disc 5 is provided at the bottom end of the zinc alloy sleeve 4. The shaft core 1 and the pump casing are integrally injection molded. The riveted structure of the shaft core 1 adopts a die-casting fixed shaft core solution. The shaft core 1 is implanted into a mold for die-casting, so that the shaft core 1 and the zinc alloy sleeve 4 are combined in the form of die-casting. The zinc alloy sleeve 4 is combined with the shaft core 1 under the die-casting process. The die-cast shaft core 1 is designed to increase the requirements of the overall rotor 3 for the lateral structural strength and the longitudinal structural tension. The utility model prevents the shaft core from falling off, loosening and displacing through a new pump shaft structure and has a certain anti-rust function.

[0026] like Figures 1 to 3As shown, the utility model is a water pump shaft core structure combined with a shaft sleeve. When it is working, the key point of this design is that a zinc alloy shaft sleeve 4 is provided at the connection between the bottom of the shaft core 1 and the water pump main body casing, and a triangular disc 5 is provided at the bottom end of the zinc alloy shaft sleeve 4. The shaft core 1 and the pump casing are integrally injection molded. The riveted structure of the shaft core 1 adopts a die-casting fixed shaft core solution. The shaft core 1 is implanted into a mold for die-casting, so that the shaft core 1 and the zinc alloy shaft sleeve 4 are combined in the form of die-casting. The zinc alloy shaft sleeve 4 is combined with the shaft core 1 under the die-casting process. The die-cast shaft core 1 is designed to increase the requirements of the overall rotor 3 for lateral structural strength and longitudinal structural tension.

[0027] The main function achieved by the utility model is that during the working process of the water pump shaft core structure combined with the shaft sleeve, the utility model prevents the shaft core from falling off, loosening and displacement through the new pump shaft structure and has a certain anti-rust function.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A water pump shaft core structure with a shaft sleeve, comprising a shaft core (1); characterized in that: It also comprises a threaded opening (2), an integral rotor (3), a zinc alloy shaft sleeve (4) and a triangular disc (5), wherein the threaded opening (2) is arranged on the shaft core (1), the integral rotor (3) is arranged on the shaft core (1), the zinc alloy shaft sleeve (4) is mounted on the integral rotor (3), and the triangular disc (5) is mounted on the zinc alloy shaft sleeve (4).

2. A water pump shaft core structure with a shaft sleeve as claimed in claim 1, characterized in that: The shaft core (1) and the pump casing are integrally injection molded, and the riveted structure of the shaft core (1) adopts a die-casting fixed shaft core solution, and the shaft core (1) is implanted into a mold for die-casting.

3. The water pump shaft core structure with a shaft sleeve as claimed in claim 1, characterized in that: The threaded opening (2) is arranged on the shaft core (1).

4. The water pump shaft core structure with a shaft sleeve as claimed in claim 1, characterized in that: The integral rotor (3) is arranged on the shaft core (1).

5. The water pump shaft core structure with a shaft sleeve as claimed in claim 1, characterized in that: The shaft core (1) and the zinc alloy shaft sleeve (4) are combined in the form of die casting, and the zinc alloy shaft sleeve (4) is combined with the shaft core (1) in the die casting process.

6. The water pump shaft core structure with a shaft sleeve as claimed in claim 1, characterized in that: A triangular disc (5) is provided at the bottom end of the zinc alloy shaft sleeve (4).

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