A side impact limiting structure after the gear hub is pressed and assembled

Abstract

The present invention relates to the technical field of automobile parts processing, and specifically discloses a side impact limiting structure after the gear hub is press-fitted, comprising an outer gear ring, a gear hub protrusion structure, and a gear hub. The outer gear ring is detachably connected to the gear hub and sleeved on the outer wall of the gear hub, and the gear hub and the outer gear ring are engaged with each other through a gear structure. There are multiple gear hub protrusion structures, and the multiple gear hub protrusion structures are respectively fixedly connected to the gear hub and evenly distributed on the outer wall of the gear hub. Through the arrangement of the above structure, only the gear hub part itself can achieve the post-press-fitting limitation of one direction and the outer gear ring, without the need to add separate parts for limitation, which can effectively save the manufacturing cost of the product and improve the stability of the product.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, and in particular to a side punch limiting structure after a gear hub is press-assembled. Background Art

[0002] At present, the domestic parts processing and manufacturing level is also gradually improving. In addition, with the change of the environment, more attention is paid to the importance of developing advanced manufacturing technology. At present, the level of mechanical parts processing and manufacturing is gradually improving. In the past decade, with the unprecedented consensus on the importance of developing advanced manufacturing technology, stamping forming technology has made unprecedented progress in both depth and breadth. Its characteristics are that it is combined with high-tech, and great changes have begun to occur in methods and systems. The development of stamping technology involves materials, energy, molds, equipment and other aspects. Process method innovation and process scientific analysis and control are the core of technological development; mold technology and process innovation are the embodiment of the development of stamping technology, and are important factors in determining product manufacturing cycle, cost and quality.

[0003] However, the traditional gear hub assembly limit mainly adopts the following method: the gear hub and the gear ring are meshed with each other through a gear structure, and a plurality of sliding grooves are opened on the gear hub in a circumferential and uniform manner, and the clearance in the sliding groove is matched with an axially arranged slider, and the two ends of the slider are located outside the sliding groove, and the bottom of the slider is located on both sides of the gear hub and symmetrically provided with elastic expansion rings or fixed buckles, and the two ends of the elastic expansion ring are bent outward to form a hook, and the bending range of the hook is matched with the side wall of the slider. The existing technology needs to add redundant mechanisms to limit the position of the gear hub, which greatly increases the process difficulty, production cost and assembly accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a side punch limiting structure after the gear hub is press-assembled, aiming to solve the problem in the prior art that the gear hub and the gear ring are meshed with each other through a gear structure, and a plurality of sliding grooves are opened on the gear hub in a circumferential and uniform manner, and the clearance in the sliding groove is matched with an axially arranged slider, the two ends of the slider are located outside the sliding groove, and the bottom of the slider is located on both sides of the gear hub and symmetrically provided with elastic expansion rings or fixed buckles, the two ends of the elastic expansion ring are bent outward to form a hook, and the bending range of the hook is matched with the side wall of the slider. The prior art needs to add redundant mechanisms to limit the position of the gear hub, which greatly increases the process difficulty, production cost and technical problems of assembly accuracy.

[0005] To achieve the above-mentioned purpose, the present invention adopts a side impact limiting structure after the gear hub is pressed and assembled, including an outer gear ring, a gear hub protrusion structure and a gear hub. The outer gear ring is detachably connected to the gear hub and is sleeved on the outer wall of the gear hub, and the gear hub and the outer gear ring are engaged with each other through a gear structure. There are multiple gear hub protrusion structures, and the multiple gear hub protrusion structures are respectively fixedly connected to the gear hub and evenly distributed on the outer wall of the gear hub.

[0006] Among them, each of the gear hub protrusion structures includes an inclined plate, a card plate and a fixed connecting plate, the inclined plate is fixedly connected to the card plate and is located above the card plate, the fixed connecting plate is fixedly connected to the card plate and is located below the card plate, the end of the inclined plate away from the card plate is fixedly connected to the gear hub and is located on the outer wall of the gear hub, and the fixed connecting plate is fixedly connected to the gear hub and is located on the outer wall of the gear hub.

[0007] The inner side of the inclined plate is surface A, the upper end surface of the clamping plate is surface B, and the angle formed by surface A and surface B is 60°.

[0008] The lower end of the clamping plate is a surface D, and the surface D is the contact surface between the gear hub protrusion structure and the outer gear ring.

[0009] The connection point between the inclined plate and the clamping plate is point E, and point E is a natural forming point that controls the contact area between the outer gear ring and the gear hub of the surface D.

[0010] Wherein, the surface where the fixed connecting plate is fixedly connected to the gear hub is surface C, and the surface C is in contact with the minor diameter surface of the inner teeth of the gear hub.

[0011] The present invention provides a side punching limiting structure after the gear hub is press-assembled. A protrusion with a platform is punched out on the gear hub by using a mold stamping process. Through the arrangement of the above structure, only the gear hub part itself can achieve the limitation in one direction and the outer gear ring after press-assembly. There is no need to add separate parts for limiting, which can effectively save the manufacturing cost of the product and improve the stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural schematic diagram of a side punch limiting structure after the gear hub is press-assembled according to the present invention.

[0014] Figure 2 The present invention Figure 1 A magnified view of the local structure at point A.

[0015] Figure 3 It is an assembly schematic diagram of a side punch limiting structure after the gear hub is press-assembled according to the present invention.

[0016] Figure 4 It is a schematic diagram of the internal structure of a side punch limiting structure after the gear hub is press-assembled according to the present invention.

[0017] 1-outer gear ring, 2-gear hub raised structure, 3-gear hub, 4-inclined plate, 5-clamping plate, 6-fixed connecting plate, 7-surface A, 8-surface B, 9-surface C, 10-surface D, 11-point E. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0020] See also Figures 1 to 4 The present invention provides a side punch limiting structure after the gear hub is press-assembled, comprising an outer gear ring 1, a gear hub protrusion structure 2 and a gear hub 3. The outer gear ring 1 is detachably connected to the gear hub 3 and is sleeved on the outer wall of the gear hub 3. The gear hub 3 and the outer gear ring 1 are engaged with each other through a gear structure. There are multiple gear hub protrusion structures 2, and the multiple gear hub protrusion structures 2 are respectively fixedly connected to the gear hub 3 and are evenly distributed on the outer wall of the gear hub 3.

[0021] Each of the gear hub protrusion structures 2 includes an inclined plate 4, a clamping plate 5 and a fixed connecting plate 6. The inclined plate 4 is fixedly connected to the clamping plate 5 and is located above the clamping plate 5. The fixed connecting plate 6 is fixedly connected to the clamping plate 5 and is located below the clamping plate 5. The end of the inclined plate 4 away from the clamping plate 5 is fixedly connected to the gear hub 3 and is located on the outer wall of the gear hub 3. The fixed connecting plate 6 is fixedly connected to the gear hub 3 and is located on the outer wall of the gear hub 3.

[0022] The inner side of the inclined plate 4 is a surface A7, the upper end surface of the clamping plate 5 is a surface B8, and the angle formed by the surface A7 and the surface B8 is 60°.

[0023] The lower end of the clamping plate 5 is a surface D10 , and the surface D10 is the contact surface between the gear hub protrusion structure 2 and the outer gear ring 1 .

[0024] The connection point between the inclined plate 4 and the clamping plate 5 is point E11 , which is a natural forming point that controls the contact area between the outer gear ring 1 and the gear hub 3 of the surface D10 .

[0025] The surface C9 on which the fixed connecting plate 6 is fixedly connected to the gear hub 3 is in contact with the minor diameter surface of the inner teeth of the gear hub 3 .

[0026] The point E11 is the outermost point of the gear hub protrusion structure 2 .

[0027] The surface A7 is a stamped inclined surface of the limiting structure.

[0028] The surface B8 is a stamping-formed plane of the limiting structure.

[0029] In this embodiment, the beneficial effects of the present invention are as follows: a protrusion with a platform is punched out on the gear hub 3 using a die stamping process. With this structural method, only the gear hub 3 parts themselves can achieve a direction and the limit after press-fitting of the outer gear ring 1, and no separate parts need to be added for limiting. This can effectively save the manufacturing cost of the product and improve the stability of the product. The fixed connecting plate 6 is connected to the gear hub 3 and supports the clamping plate 5 at the same time. The clamping plate 5 supports the inclined plate 4, and the clamping plate 5 is used to clamp the outer gear ring 1.

[0030] This technology mainly relies on the assembly limitation between the outer gear ring 1 and the gear hub 3. The gear hub 3 is installed into the outer gear ring 1 by press-fitting, and the gear hub 3 and the outer gear ring 1 are meshed with each other through the gear structure. The surface D10 contacts the end surface of the outer gear ring 1 to achieve the axial limitation requirement.

[0031] The side punching limit structure of the present technology is stamped and formed by a stamping side punching process. The surface A7 and the surface B8 form an angle of 60°, and the surface B8 is a plane perpendicular to the surface C9. During the stamping process, a forming punch designed according to the surface A7 and the surface B8 is stamped sideways to accumulate the material on the surface C9 toward the surface D10. The mold stamping process is used to punch out a protrusion with a platform on the gear hub 3. Only the gear hub 3 itself can achieve a direction and the post-pressing limit of the outer gear ring 1, which can effectively save the manufacturing cost of the product.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A side impact limiting structure after the gear hub is press-fitted, characterized in that: The gear hub comprises an outer gear ring, a gear hub protrusion structure and a gear hub, wherein the outer gear ring is detachably connected to the gear hub and sleeved on the outer wall of the gear hub, and the gear hub and the outer gear ring are meshed with each other through a gear structure, and the gear hub protrusion structure is multiple, and the multiple gear hub protrusion structures are respectively fixedly connected to the gear hub and evenly distributed on the outer wall of the gear hub; Each of the gear hub protrusion structures includes an inclined plate, a card plate and a fixed connecting plate. The inclined plate is fixedly connected to the card plate and is located above the card plate. The fixed connecting plate is fixedly connected to the card plate and is located below the card plate. One end of the inclined plate away from the card plate is fixedly connected to the gear hub and is located on the outer wall of the gear hub. The fixed connecting plate is fixedly connected to the gear hub and is located on the outer wall of the gear hub.

2. A side impact limiting structure after the gear hub is press-fitted as claimed in claim 1, characterized in that: The inner side of the inclined plate is surface A, the upper end surface of the clamping plate is surface B, and the angle formed by surface A and surface B is 60°.

3. A side impact limiting structure after the gear hub is press-fitted as claimed in claim 2, characterized in that: The lower end of the clamping plate is a surface D, and the surface D is the contact surface between the gear hub protrusion structure and the outer gear ring.

4. A side impact limiting structure after the gear hub is press-fitted as claimed in claim 3, characterized in that: The connection point between the inclined plate and the clamping plate is point E, and point E is a natural forming point that controls the contact area between the outer gear ring and the gear hub of the surface D.

5. The side impact limiting structure after the gear hub is press-fitted as claimed in claim 4, characterized in that: The surface of the fixed connecting plate fixedly connected to the gear hub is surface C, and the surface C is in contact with the minor diameter surface of the inner teeth of the gear hub.

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