Tricycle and motorcycle shaft forked piece type extrusion and warm forging piece with high production efficiency

Abstract

The utility model relates to the field of mechanical parts, in particular to a tricycle and motorcycle shaft forked piece type extrusion and warm forging piece which is high in production efficiency and comprises a forked piece, and two forked holes are symmetrically formed in the forked piece. And one end of the single-head shaft and the middle part of the forked piece are integrally formed. According to the scheme, the forked part and the single-head shaft are integrally formed, when the follow-up finish machining step of the forked part and the single-head shaft is carried out subsequently, the forked part and the single-head shaft can be carried out synchronously, and the machining period needed for machining the forked part and the single-head shaft separately is shortened; and meanwhile, the forked piece and the single-head shaft do not need to be welded, so that the steps and the period required by welding are reduced, and the machining cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, and in particular to a high-efficiency extrusion and warm forging of axle and fork components for tricycles and motorcycles. Background Technology

[0002] The engine and rear axle (drive wheel) of a tricycle are usually not on the same axis, and the rear axle will swing up and down with the undulations of the road surface during driving. The driveshaft with forks, through the cooperation of universal joints, allows the driveshaft to deflect freely within a certain angle, thereby adapting to the dynamic displacement of the rear axle and ensuring continuous and smooth power transmission. When a tricycle is in motion, uneven road surfaces or changes in load can cause torque fluctuations in the transmission system. The forks, through the articulated structure of the universal joints, absorb some vibration and impact, reducing rigid impact on the engine and gearbox, and extending the life of components.

[0003] In existing shaft-and-fork components, the single-head shaft and the fork are machined separately before the end of the single-head shaft is inserted into the mounting hole of the fork and welded. The separate machining of the single-head shaft and the fork is time-consuming and labor-intensive, and a separate welding process is required when connecting the single-head shaft and the fork. This results in low production efficiency and high production costs for the entire shaft-and-fork component. At the same time, the structural strength of the welded joint is relatively low, and there is a high risk of fatigue damage. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-efficiency extrusion and warm forging for tricycle and motorcycle axle and fork components. This solves the problem that processing single-head axles and fork components separately is time-consuming and labor-intensive, and requires separate welding processes for each component, resulting in low production efficiency and high production costs for the entire axle and fork component category.

[0005] To achieve the above objectives, the basic solution of this utility model is as follows: a high-efficiency extruded and warm-forged part for tricycle and motorcycle axle belts and forks, comprising:

[0006] It has a fork attachment, and two fork holes are symmetrically arranged on the fork attachment;

[0007] The single-head shaft has one end integrally formed with the middle of the fork component.

[0008] The technical principle of this utility model is as follows: when processing the fork and the single-head shaft, the fork and the single-head shaft are integrally formed. In the subsequent finishing steps of the fork and the single-head shaft, the fork and the single-head shaft can be processed simultaneously, reducing the processing cycle required for processing the fork and the single-head shaft separately, and effectively reducing processing costs.

[0009] Meanwhile, since the fork and single-head shaft are integrally molded, there is no need to weld the fork and single-head shaft, which reduces the steps and cycle required for welding and lowers the processing cost.

[0010] When the fork and single-head shaft are used together, they are integrally molded, increasing the strength of the connection between them and enhancing their fit, thus extending their service life.

[0011] Furthermore, the single-head shaft has involute teeth integrally formed in the circumferential direction.

[0012] With the above settings, the involute teeth are integrally formed on the single-head shaft, making the involute teeth more tightly formed on the single-head shaft.

[0013] Furthermore, the involute teeth are cylindrical bodies with involute teeth.

[0014] With the above configuration, the cylindrical body with involute teeth can accurately transmit power to the fork and single-head shaft.

[0015] Furthermore, the fork hole is a ten-byte hole.

[0016] With the above settings, the ten-way hole allows a certain angle between the input shaft and the output shaft, realizing non-collinear transmission while maintaining stable transmission of speed and torque.

[0017] Furthermore, the ten-eighth hole of the fork-shaped part is provided with a coaxially arranged snap ring hole.

[0018] With the above setup, the axial constraint of the snap ring enables reliable fixation and convenient maintenance of the transmission components within a limited space.

[0019] Furthermore, the fork component is a warm-forged fork.

[0020] Through the above settings, the warm fork belt achieves high strength, high precision, and lightweight design of the belt fork components while keeping costs under control, through synergistic optimization of process and materials.

[0021] Furthermore, a first countersunk hole is provided at the center of the side of the fork member away from the single-head shaft, and the axis of the first countersunk hole is collinear with the axis of the single-head shaft.

[0022] Through the above settings, including the first countersunk hole, the lightweight, dynamic balance optimization, and functional integration of the fork-shaped component are achieved while ensuring the structural strength of the fork-shaped component.

[0023] Furthermore, a second countersunk hole is provided at the center of the end of the single-head shaft away from the fork, and the axis of the second countersunk hole is collinear with the axis of the single-head shaft.

[0024] With the above settings, the single-head shaft can also be integrated into a lightweight configuration by setting the second countersunk hole; at the same time, since the fork and the single-head shaft form an integral structure, the processing of the first and second countersunk holes can be carried out in the same stage, which can reduce the processing cycle required for the processing of the first and second countersunk holes and reduce labor costs.

[0025] Furthermore, the diameter of the cross-shaped hole is 19.97-20.0 mm, and the diameter of the snap ring hole is 21.3-21.5 mm.

[0026] With the above settings, the retaining ring hole is located inside the ten-way hole, and the diameter of the retaining ring hole is larger than the diameter of the ten-way hole, which makes it easy for the retaining ring to be snapped into the retaining ring hole and the ten-way hole, so as to achieve stable and precise installation and fit of the retaining ring during the assembly process.

[0027] Furthermore, the vertical distance between the end face of the single-head shaft away from the ten-way hole and the horizontal axis of the ten-way hole is 149.5-150.5mm.

[0028] With the above settings, the positions of the cross-shaped holes on the single-head shaft and the fork are matched, which makes it easier for the single-head shaft and the fork to be installed more accurately and for power transmission, and also makes it easier for the entire warm forging part to be matched with tricycles and motorcycles. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the axial direction of an extruded and warm-forged tricycle / motorcycle axle belt fork component with high production efficiency in an embodiment of this utility model.

[0030] Figure 2 This is a longitudinal sectional view of an extruded and warm-forged tricycle / motorcycle axle and fork component with high production efficiency, as described in this utility model embodiment.

[0031] Figure 3 This is a state diagram of the extrusion and warm forging process of a type of high-efficiency tricycle and motorcycle axle belt fork component in an embodiment of this utility model.

[0032] In the above figures: 10 with fork, 101 with ten-way hole, 102 with first countersunk hole, 103 with snap ring hole, 20 with single-head shaft, 201 with involute tooth, and 202 with second countersunk hole. Detailed Implementation

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0034] This embodiment is basically as follows: Figure 1 , Figure 2 and Figure 3As shown, this utility model embodiment proposes a high-efficiency extruded and warm-forged tricycle motorcycle axle with fork components, including a fork component 10 and a single-head axle 20, wherein the fork component 10 has two fork holes symmetrically arranged on it; as shown Figure 1 and Figure 2 As shown, one end of the single-head shaft 20 is integrally formed with the middle part of the fork member 10.

[0035] At the same time, such as Figure 1 As shown, the single-head shaft 20 has an integrally formed involute tooth 201 in the circumferential direction. The involute tooth 201 is a cylinder with involute teeth 201.

[0036] At the same time, such as Figure 1 As shown, the fork member 10 is a warm forged fork member, the fork hole is a ten-way hole 101, and a snap ring hole 103 is coaxially provided at the ten-way hole 101 of the fork member 10.

[0037] At the same time, such as Figure 2 As shown, a first countersunk hole 102 is provided at the center of the side of the fork member 10 away from the single-head shaft 20, and the axis of the first countersunk hole 102 is collinear with the axis of the single-head shaft 20; a second countersunk hole 202 is provided at the center of the end of the single-head shaft 20 away from the fork member 10, and the axis of the second countersunk hole 202 is collinear with the axis of the single-head shaft 20, and the first countersunk hole 102 and the second countersunk hole 202 are coaxially arranged.

[0038] In addition, the diameter of the cross-shaped hole 101 is 19.97-20.0mm, and the diameter of the snap ring hole 103 is 21.3-21.5mm; the vertical distance between the end face of the single-head shaft 20 away from the cross-shaped hole 101 and the horizontal axis of the cross-shaped hole 101 is 149.5-150.5mm; the snap ring hole 103 is located inside the cross-shaped hole 101, and the diameter of the snap ring hole 103 is larger than the diameter of the cross-shaped hole 101, so that the snap ring can be easily placed inside the snap ring hole 103 and the cross-shaped hole 101, so as to achieve stable and precise installation and fit of the snap ring during assembly. The positional fit between the single-head shaft 20 and the cross-shaped hole 101 on the fork 10 makes the installation and power transmission of the single-head shaft 20 and the fork 10 more precise, and also facilitates the fit of the entire forged part with the tricycle or motorcycle.

[0039] In this embodiment, a high-efficiency extrusion and warm forging process for a three-wheeled motorcycle axle and fork component is described, such as... Figure 3 As shown, during the initial machining of the fork-shaped part 10 and the single-head shaft 20, the fork-shaped part 10 and the single-head shaft 20 are integrally formed. Then, a cylindrical part with involute teeth 201 is machined on the single-head shaft 20. Then, the fork-shaped part 10 is machined on the other end of the single-head shaft 20. Finally, the cross-shaped hole 101 and the snap ring hole 103 are machined on the fork-shaped part 10. The entire machining process can reduce the welding steps required when machining the fork-shaped part 10 and the single-head shaft 20 separately, thus reducing the number of machining steps and lowering the machining cost.

[0040] When machining the cross-shaped hole 101, the snap ring hole 103, the first countersunk hole 102, the second countersunk hole 202, and the cylindrical structure with involute teeth 201, the overall structure formed by the fork member 10 and the single-head shaft 20 is larger, making it easier to perform stable clamping and machining of the cross-shaped hole 101, the snap ring hole 103, the first countersunk hole 102, the second countersunk hole 202, and the cylindrical structure with involute teeth 201. At the same time, the machining of the first countersunk hole 102 and the second countersunk hole 202 can be performed in the same stage, thereby reducing the machining cycle required for machining the cross-shaped hole 101, the snap ring hole 103, the first countersunk hole 102, the second countersunk hole 202, and the cylindrical structure with involute teeth 201, and reducing labor costs.

[0041] When the fork-shaped component 10 and the single-head shaft 20 in this embodiment are used, the fork-shaped component 10 and the single-head shaft 20 are integrally formed, the strength of the connection between the fork-shaped component 10 and the single-head shaft 20 is increased, which can enhance the fit strength between the fork-shaped component 10 and the single-head shaft 20 and extend the service life of the fork-shaped component 10 and the single-head shaft 20.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency extrusion and warm forging type of axle and fork component for tricycles and motorcycles, characterized in that, include: The fork-shaped component has two symmetrically arranged fork holes. The single-headed shaft is integrally formed with the fork-shaped component and the single-headed shaft. The fork hole is a ten-way hole, and a snap ring hole is provided coaxially at the ten-way hole of the fork. A first countersunk hole is provided at the center of the side of the fork away from the single-head shaft 20, and the axis of the first countersunk hole is collinear with the axis of the single-head shaft.

2. The high-efficiency extruded and warm-forged tricycle and motorcycle axle belt fork component as described in claim 1, characterized in that, The single-headed shaft has involute teeth integrally formed in the circumferential direction.

3. The high-efficiency extruded and warm-forged tricycle / motorcycle axle belt fork component as described in claim 2, characterized in that, The involute tooth is a cylindrical body with involute teeth.

4. The high-efficiency extruded and warm-forged tricycle and motorcycle axle belt fork component as described in claim 3, characterized in that, The fork component is a warm-forged fork.

5. The extruded and warm-forged tricycle / motorcycle axle belt fork component with high production efficiency as described in claim 4, characterized in that, The single-headed shaft has a second countersunk hole at the center of the end away from the fork, and the axis of the second countersunk hole is collinear with the axis of the single-headed shaft.

6. The extruded and warm-forged tricycle / motorcycle axle belt fork component with high production efficiency as described in claim 5, characterized in that, The diameter of the ten-eighths hole is 19.97-20.0 mm, and the diameter of the snap ring hole is 21.3-21.5 mm.

7. The extruded and warm-forged tricycle / motorcycle axle belt fork component with high production efficiency as described in claim 5, characterized in that, The vertical distance between the end face of the single-headed shaft away from the ten-way hole and the horizontal axis of the ten-way hole is 149.5-150.5mm.

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