High-strength automobile water pump housing

Abstract

The utility model provides a kind of high-strength automobile water pump shell, belong to automobile manufacturing parts technical field.It solved the shell wall thickness design single of traditional automobile water pump shell, fatigue crack is easy to produce under the high-frequency vibration of engine, service life is shortened;And the problem of insufficient sealing.This high-strength automobile water pump shell, including the shell of shell and inner shell, inner shell is hollow structure, and transmission shaft is installed on inner shell, and a plurality of longitudinal reinforcing ribs for strengthening shell strength are arranged between shell and inner shell periphery, a plurality of transverse reinforcing ribs are arranged between each longitudinal reinforcing rib, and sealing assembly with sealing effect is sleeved on transmission shaft.The utility model has the advantages of high strength and good sealing.

Description

Technical Field

[0001] This utility model belongs to the field of automotive manufacturing parts technology, and specifically relates to a high-strength automotive water pump housing. Background Technology

[0002] The car water pump housing is the "heart shell" of the engine cooling system, responsible for holding the coolant and circulating it.

[0003] Traditional automotive water pump housings have a single wall thickness design, which makes them prone to fatigue cracks under high-frequency engine vibration, shortening their service life. Furthermore, the insufficient machining precision of the sealing surface at the junction of the housing and the drive shaft can easily lead to coolant leakage, affecting not only the water pump's sealing performance but also reducing its operational reliability and overall durability. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a high-strength, high-sealing automotive water pump housing.

[0005] The objective of this utility model can be achieved through the following technical solution: a high-strength automotive water pump housing, comprising an outer shell and an inner shell, the inner shell being a hollow structure, and a drive shaft mounted on the inner shell, characterized in that a plurality of longitudinal reinforcing ribs for strengthening the housing are arranged circumferentially between the outer shell and the inner shell, and a plurality of transverse reinforcing ribs are arranged between each of the longitudinal reinforcing ribs; a sealing assembly for sealing is fitted on the drive shaft, the sealing assembly comprising a large sealing ring connected to the inner shell and a small sealing ring fitting against the drive shaft, a ring-shaped fixing ring being provided on the large sealing ring, and the cross-section of the fixing ring being snap-fit ​​shaped, one end of the fixing ring having a snap-fit ​​portion; and a ring-shaped groove for mounting the fixing ring being provided on the inner shell.

[0006] In the aforementioned high-strength automotive water pump housing, an annular groove is formed on the inner wall of the large sealing ring, and a retaining ring is formed on the outer wall of the small sealing ring to engage and fix with the annular groove.

[0007] In the aforementioned high-strength automotive water pump housing, the sealing assembly is made of an elastic material.

[0008] In the aforementioned high-strength automotive water pump housing, both ends of the drive shaft extend into the inner shell, and one end of the drive shaft is provided with an impeller, while the other end is provided with a toothed roller.

[0009] In the aforementioned high-strength automotive water pump housing, the longitudinal reinforcing ribs and transverse reinforcing ribs are fixed between the outer shell and the inner shell by welding.

[0010] Compared with existing technologies, this high-strength automotive water pump housing, by setting longitudinal and transverse reinforcing ribs in the circumferential direction of the cavity between the outer and inner shells, prevents housing deformation, greatly enhances the overall rigidity and strength of the housing, and improves service life; the heavy-duty sealing structure fundamentally improves sealing reliability and greatly reduces the risk of coolant leakage along the drive shaft. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a high-strength automotive water pump housing.

[0012] Figure 2 This is a cross-sectional view of the housing of a high-strength automotive water pump.

[0013] Figure 3 This is a partial cross-sectional view of the housing of a high-strength automotive water pump.

[0014] In the diagram, 1. Shell; 2. Outer shell; 3. Inner shell; 4. Drive shaft; 5. Longitudinal reinforcing rib; 6. Transverse reinforcing rib; 7. Large sealing ring; 8. Small sealing ring; 9. Retaining ring; 10. Snap-fit ​​part; 11. Groove; 12. Annular groove; 13. Snap ring; 14. Impeller; 15. Roller. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3As shown, this high-strength automotive water pump housing includes a housing 1 composed of an outer shell 2 and an inner shell 3. A cavity for welding reinforcing ribs is formed between the outer shell 2 and the inner shell 3. The inner shell 3 is a hollow structure, and a drive shaft 4 is mounted on the inner shell 3. Several longitudinal reinforcing ribs 5 are circumferentially arranged between the outer shell 2 and the inner shell 3 to strengthen the housing 1. The longitudinal reinforcing ribs 5 extend circumferentially along the housing 1, and several transverse reinforcing ribs 6 are arranged between each longitudinal reinforcing rib. The longitudinal reinforcing ribs 5 and the transverse reinforcing ribs 6 together form a robust mesh support structure, greatly enhancing the rigidity of the housing 1. A sealing assembly for sealing is fitted onto the drive shaft 4. It includes a large sealing ring 7 connected to the inner shell 3 and a small sealing ring 8 that fits against the drive shaft 4. The large sealing ring 7 is used to achieve a static seal with the inner shell 3, and the small sealing ring 8 is used to achieve a dynamic seal with the drive shaft 4. The large sealing ring 7 is provided with a ring-shaped fixing ring 9, and the cross-section of the fixing ring 9 is snap-fit ​​shaped. One end of the fixing ring 9 has a snap-fit ​​part 10. The inner shell 3 is provided with a ring-shaped groove 11 for installing the fixing ring 9. During installation, the fixing ring 9 is aligned and pressed into the groove 11. The elasticity of the material is used to make the snap-fit ​​part 10 snap into the groove 11, thereby achieving a firm and reliable fixation of the large sealing ring 7 on the inner shell 3, effectively preventing it from loosening or falling off.

[0017] To elaborate further, an annular groove 12 is provided on the inner wall of the large sealing ring 7, and a retaining ring 13 is provided on the outer wall of the small sealing ring 8 to engage and fix with the annular groove 12. By tightly engaging the retaining ring 13 into the annular groove 12, the connection and sealing between the large and small sealing rings 8 are achieved. The inner lip of the small sealing ring 8 is interference-fitted with the outer surface of the drive shaft 4, and fits tightly, thereby forming an effective rotary dynamic seal.

[0018] To elaborate further, the sealing components are made of elastic materials, such as rubber, and have good sealing properties and wear resistance.

[0019] To elaborate further, the inner housing 3 extends from both ends of the drive shaft 4, and one end of the drive shaft 4 is provided with an impeller 14, which is used to drive the circulation of coolant. The other end is provided with a toothed roller 15, which is connected to the crankshaft of the car engine via a belt to obtain power.

[0020] To elaborate further, the longitudinal stiffeners 5 and the transverse stiffeners 6 are fixed between the outer shell 2 and the inner shell 3 by welding. This welding method ensures the reliability of the connection and the integrity of the structure.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document frequently uses terms such as 1. shell 1; 2. outer shell 2; 3. inner shell 3; 4. drive shaft 4; 5. longitudinal reinforcing rib 5; 6. transverse reinforcing rib 6; 7. large sealing ring 7; 8. small sealing ring 8; 9. retaining ring 9; 10. snap-fit ​​part 10; 11. groove 11; 12. annular groove 12; 13. retaining ring 13; 14. impeller 14; 15. roller 15, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A high-strength automotive water pump housing, comprising a housing (1) consisting of an outer shell (2) and an inner shell (3), wherein the inner shell (3) is a hollow structure and a drive shaft (4) is mounted on the inner shell (3), characterized in that, A plurality of longitudinal reinforcing ribs (5) for strengthening the shell (1) are provided circumferentially between the outer shell (2) and the inner shell (3). A plurality of transverse reinforcing ribs (6) are provided between each of the longitudinal reinforcing ribs. A sealing assembly for sealing is fitted on the drive shaft (4). The sealing assembly includes a large sealing ring (7) connected to the inner shell (3) and a small sealing ring (8) that fits against the drive shaft (4). A ring-shaped fixing ring (9) is provided on the large sealing ring (7), and the cross-section of the fixing ring (9) is snap-fit. One end of the fixing ring (9) has a snap-fit ​​part (10). A ring-shaped groove (11) for installing the fixing ring (9) is provided on the inner shell (3).

2. The high-strength automotive water pump housing according to claim 1, characterized in that, An annular groove (12) is provided on the inner wall of the large sealing ring (7), and a retaining ring (13) is provided on the outer wall of the small sealing ring (8) to engage and fix with the annular groove (12).

3. A high-strength automotive water pump housing according to claim 1, characterized in that, The sealing assembly is made of an elastic material.

4. A high-strength automotive water pump housing according to claim 1, characterized in that, The inner shell (3) extends from both ends of the drive shaft (4), and one end of the drive shaft (4) is provided with an impeller (14), and the other end is provided with a roller (15) with toothed grooves.

5. A high-strength automotive water pump housing according to claim 1, characterized in that, The longitudinal reinforcing ribs (5) and transverse reinforcing ribs (6) are fixed between the outer shell (2) and the inner shell (3) by welding.

Images