Covered wheel hub welding structure

Abstract

This utility model discloses a welding structure for a wheel hub, including a wheel hub and a wheel shell. The wheel hub has a raised docking shaft at its center. The wheel hub has a welding ring on its end face on the same side as the docking shaft, which is concentric with the docking shaft. The welding groove is welded to the connection of the docking shaft. The welding ring protrudes from the surface of the wheel hub. The welding ring is composed of multiple arc blocks, and an opening is formed between adjacent arc blocks for the welding wire to pass through. This utility model uses the welding ring to surround the weld between the original docking shaft and the welding groove. The welding ring is welded to the outer wall of the wheel shell, which increases the welding connection area and thus has higher welding strength. In addition, surrounding the weld between the original docking shaft and the welding groove avoids the phenomenon of welding slag spatter. The use of multiple arc blocks and the openings serve to dissipate heat and reduce the deformation of the welding ring.

Description

Technical Field

[0001] This utility model relates to the technical field of wheel hub welding, specifically a wheel hub welding structure. Background Technology

[0002] The torque converter housing, as the external protective shell of the hydraulic torque converter, is usually made of stamped steel plate or aluminum alloy, enclosing the internal pump impeller, turbine, and guide wheel assembly, and connecting to the transmission input shaft. To facilitate the connection between the torque converter housing and the transmission input shaft, a torque converter hub is usually installed at the center of the torque converter housing shaft to connect with the transmission input shaft. Currently, the torque converter housing and the torque converter hub are connected by welding, which provides high connection strength. However, the existing method involves a welding groove in the center of the torque converter housing, and a mating shaft inserted into the welding groove in the center of the torque converter hub. The connection between the mating shaft and the torque converter hub is then welded. However, this welding method results in a small connection area, leading to weak welds. Furthermore, the open welding process during welding is prone to slag spatter, which can easily cause personal injury to workers. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a wheel hub welding structure.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a welding structure for a wheel hub, comprising a wheel hub and a wheel shell. The wheel hub has a raised mating shaft at its center, and the wheel shell has an outwardly protruding boss at its center. The boss has a welding groove at its center for the end of the mating shaft to pass through, and the welding groove matches the size of the mating shaft. The wheel hub has a welding ring on its end face on the same side as the mating shaft, which is concentric with the mating shaft. The welding groove is welded to the connection between the mating shaft and the welding ring, and the welding ring protrudes from the surface of the wheel hub. The end of the welding ring abuts against the outer wall of the wheel shell, and the welding ring is welded to the outer wall of the wheel shell. The welding ring is composed of multiple arc segments, and an opening for welding wire to pass through is formed between adjacent arc segments.

[0006] As a preferred embodiment of this utility model, the end of the docking shaft is provided with a frustum-shaped guide portion, and the guide portion is inserted into the welding groove.

[0007] In a preferred embodiment of this invention, the cross-section of the welding ring is triangular.

[0008] As a preferred embodiment of this utility model, the welding ring and the mating shaft are integrally formed with the wheel hub.

[0009] As a preferred technical solution of this utility model, the inner sidewall of the multiple arc blocks is welded to the sidewall of the cover wheel shell.

[0010] As a preferred embodiment of this invention, the horizontal height of the welding ring is lower than the horizontal height of the end of the mating shaft.

[0011] As a preferred embodiment of this utility model, the protrusion is provided with a plurality of reinforcing ribs.

[0012] The beneficial effects of this utility model are:

[0013] In this type of shroud hub welding structure, the shroud hub has a welding ring on the end face of the same side as the docking shaft, which is concentric with the docking shaft. This welding ring surrounds the welding joint between the original docking shaft and the welding groove. The welding ring is welded to the outer wall of the shroud shell, which increases the welding connection area and thus has higher welding strength. The multiple segments of arc blocks form a through hole for the welding wire to pass through. This facilitates the welding wire to weld the connection between the original docking shaft and the welding groove inside through the through hole. At the same time, surrounding the welding joint between the original docking shaft and the welding groove avoids the phenomenon of welding slag spatter. The use of multiple segments of arc blocks and the through holes also play a role in heat dissipation, thereby reducing the deformation of the welding ring. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of a welded structure for a wheel hub according to this utility model;

[0016] Figure 2 This is a schematic diagram of the docking of the wheel hub and the wheel shell in a wheel hub welding structure according to this utility model;

[0017] Figure 3 This is a schematic diagram showing the welding point positions of the cover wheel hub and the cover wheel shell in a cover wheel hub welding structure according to this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a wheel hub with a welded structure according to the present invention.

[0019] In the diagram: 1. Wheel hub; 2. Wheel housing; 3. Connecting shaft; 4. Boss; 5. Welding groove; 6. Welding ring; 7. Guide part; 8. Arc block; 9. Reinforcing rib; 10. Through port. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses a welded structure for a wheel hub, comprising a wheel hub 1 and a wheel shell 2, wherein both the wheel hub 1 and the wheel shell 2 are made of high-strength materials, which makes them less prone to deformation during use.

[0022] The hub 1 has a raised docking shaft 3 at its center, and the housing 2 has an outwardly protruding boss 4 at its center. This facilitates docking of the docking shaft 3. The boss 4 has a welding groove 5 at its center for the end of the docking shaft 3 to pass through. The welding groove 5 matches the size of the docking shaft 3, thus ensuring good concentricity. It is an industry standard to ensure that the axis center of the hub 1 and the axis center of the housing 2 are on a straight line. The specific setting is not described here, because the innovation of this utility model does not lie in this. The hub 1 has a welding ring 6 on the end face of the same side as the docking shaft 3, which is concentric with the docking shaft 3. By setting the welding ring 6, the welding area between the hub 1 and the housing 2 is increased, thereby ensuring high welding strength and preventing separation. The welding groove 5 is welded to the connection of the docking shaft 3, and the welding ring 6 protrudes from the surface of the hub 1. The end of the welding ring 6 abuts against the outer wall of the housing 2, and the welding ring 6 is welded to the outer wall of the housing 2. The welding ring 6 is composed of multiple arc blocks 8, and an opening 10 for the welding wire to pass through is formed between adjacent arc blocks 8.

[0023] The hub 1 of this utility model has a welding ring 6 arranged concentrically with the docking shaft 3 on the end face of the same side as the docking shaft 3. The welding ring 6 surrounds the welding joint between the original docking shaft 3 and the welding groove 5. The welding ring 6 is welded to the outer wall of the hub 2, which increases the welding connection area and thus has higher welding strength. The multiple arc blocks 8 adjacent to each other form a through hole for the welding wire to pass through. This facilitates the welding wire to weld the connection between the original docking shaft 3 and the welding groove 5 inside through the through hole. At the same time, the welding joint between the original docking shaft 3 and the welding groove 5 is surrounded, avoiding the phenomenon of welding slag spatter. The use of multiple arc blocks 8 and the through hole play a role in heat dissipation, thereby reducing the deformation of the welding ring 6.

[0024] The end of the docking shaft 3 is provided with a frustum-shaped guide portion 7. The size of the guide portion is smaller than the size of the welding groove 5, so as to play a guiding role. The guide portion 7 is inserted into the welding groove 5, thus playing a guiding role and facilitating accurate docking of the docking shaft with the welding groove.

[0025] The weld ring 6 has a triangular cross-section, which allows the weld to fill the groove formed by the weld ring 6 and the cover wheel shell 2 during welding. This results in a larger welding contact area and thus better welding strength.

[0026] The welding ring 6 and the docking shaft 3 are integrally formed with the cover hub 1, thus ensuring that the whole has a strong connection strength.

[0027] The inner wall of the multiple arc blocks 8 is welded to the side wall of the cover wheel housing 2. This places the welding point within the anti-splash space formed by the welding ring 6 and the cover wheel housing, thus avoiding the phenomenon of welding slag splashing and protecting the workers.

[0028] The horizontal height of the welding ring 6 is lower than the horizontal height of the end of the docking shaft 3, so that the docking shaft 3 can be inserted into the welding groove 5 after the welding ring 6 comes into contact with the cover wheel shell 2.

[0029] The boss 4 is provided with multiple reinforcing ribs 9, which increases the strength of the boss 4 and makes it less prone to deformation.

[0030] Working principle: In this type of wheel hub welding structure, the wheel hub 1 has a welding ring 6 on the end face of the same side as the docking shaft 3, which is concentric with the docking shaft 3. The welding ring 6 surrounds the welding joint between the original docking shaft 3 and the welding groove 5. The welding ring 6 is welded to the outer wall of the wheel shell 2, which increases the welding connection area and thus has higher welding strength. The multiple arc blocks 8 adjacent to each other form a through hole for the welding wire to pass through. This facilitates the welding wire to weld the connection between the original docking shaft 3 and the welding groove 5 inside through the through hole. At the same time, the welding joint between the original docking shaft 3 and the welding groove 5 is surrounded, avoiding the phenomenon of welding slag spatter. The use of multiple arc blocks 8 and the through hole play a role in heat dissipation, thereby reducing the deformation of the welding ring 6.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the 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.

Claims

1. A welded structure for a wheel hub, comprising a wheel hub (1) and a wheel housing (2), wherein the wheel hub (1) has a protruding mating shaft (3) at its center, characterized in that, The center of the cover wheel housing (2) is provided with an outwardly protruding boss (4), and the center of the boss (4) is provided with a welding groove (5) for the end of the docking shaft (3) to pass through. The welding groove (5) matches the size of the docking shaft (3). The cover wheel hub (1) is provided with a welding ring (6) arranged concentrically with the docking shaft (3) on the end face on the same side as the docking shaft (3). The welding groove (5) is welded to the connection of the docking shaft (3). The welding ring (6) protrudes from the surface of the cover wheel hub (1). The end of the welding ring (6) abuts against the outer wall of the cover wheel housing (2), and the welding ring (6) is welded to the outer wall of the cover wheel housing (2). The welding ring (6) is composed of multiple arc blocks (8), and an opening (10) for the welding wire to pass through is formed between adjacent multiple arc blocks (8).

2. The wheel hub welding structure according to claim 1, characterized in that, The end of the docking shaft (3) is provided with a frustum-shaped guide (7), which is inserted into the welding groove (5).

3. The wheel hub welding structure according to claim 1, characterized in that, The cross-section of the welding ring (6) is triangular.

4. The wheel hub welding structure according to claim 1, characterized in that, The welding ring (6) and the docking shaft (3) are integrally formed with the cover hub (1).

5. The wheel hub welding structure according to claim 1, characterized in that, The inner wall of the multi-segment arc block (8) is welded to the side wall of the cover wheel housing (2).

6. The wheel hub welding structure according to claim 1, characterized in that, The horizontal height of the welding ring (6) is lower than the horizontal height of the end of the mating shaft (3).

7. The wheel hub welding structure according to claim 1, characterized in that, The boss (4) is provided with multiple reinforcing ribs (9).

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