Special core roller for forging stepped gear forgings
By designing a special core roller for forging stepped gears, using 5CrNiMo hot forging tool steel, and setting stabilizing holes and annular grooves on the core roller body, the problem of large material consumption of the core roller was solved, achieving efficient production and cost reduction.
Patent Information
- Application Number
- CN202520597990.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-01
AI Technical Summary
In the existing technology, the core roller used for forging stepped gears requires a large amount of material, resulting in high production costs.
A special mandrel for forging stepped gears is designed and made of 5CrNiMo hot forging tool steel. The mandrel body has a stabilizing hole on the end face and an annular groove and a transition arc on the outer surface. The groove in the middle of the transition arc ensures that the workpiece is completed in one forging process.
It improved production efficiency, reduced production costs, and ensured product quality and the lifespan of the core roller.
Smart Images
Figure CN223916538U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to core roller technical field, concretely is a kind of special core roller for forging stepped gear forge piece. BACKGROUND
[0002] Gear forge piece is commonly used forge piece in industry, now the core roller of production gear forge piece adopts traditional core roller, material consumption is large, and it increases enterprise production cost.
[0003] The core roller for forging stepped gear provided by prior art is straight cylindrical, to overcome the deficiency of the prior art, a kind of gear forge piece core is designed, which can reduce production material and reduce enterprise production cost while ensuring product performance.
[0004] Therefore, a kind of special core roller for forging stepped gear forge piece is provided to solve the problems in the above background. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of special core roller for forging stepped gear forge piece to solve the problems in the above background.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of special core roller for forging stepped gear forge piece, including core roller main body, the end face of the core roller main body is equipped with firm hole, the outside of recess is provided with integrated transition arc, and the outer surface of transition arc is equipped with recess.
[0007] Preferably, the core roller main body is made of 5CrNiMo hot die forging tool steel.
[0008] Preferably, the recess is annular recess and is arranged on the outer surface of the transition arc.
[0009] Preferably, the outer surface of the core roller main body is in the shape of a ladder.
[0010] Preferably, the firm holes are arranged in two groups, and the two groups of firm holes are symmetric about the central axis of the core roller main body.
[0011] Preferably, the end faces of the two ends of the transition arc are arranged in the shape of a rounded corner.
[0012] Compared with the prior art, the utility model has the beneficial effects that: through the application of the core roller main body in the work, the core roller main body is mainly used for forging gear ring, through the use of special core roller main body, it can ensure that the workpiece is completed in one forging process, which not only improves the production efficiency, but also reduces the production cost, and ensures the quality of the product, a recess is processed in the transition arc, and the recess and the straight section joint part of the core roller main body are processed smoothly, which can ensure that the workpiece is completed in one forging process, thereby ensuring the product quality and the service life of the core roller. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram showing the connection between the core roller body and the transition arc.
[0015] Figure 3 This is a cross-sectional schematic diagram of the main body of the core roller structure of this utility model;
[0016] Figure 4 This is an enlarged schematic diagram of point A in diagram 3.
[0017] In the diagram: 1. Core roller body; 2. Groove; 3. Transition arc; 4. Stabilizing hole. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Example 1, please refer to Figures 1-4 This utility model provides two technical solutions: a special core roller for forging stepped gear forgings, including a core roller body 1, a stabilizing hole 4 is provided on the end face of the core roller body 1, and an integral transition arc 3 is provided on the outside of the groove 2, and the groove 2 is provided on the outer surface of the transition arc 3.
[0020] In the gear forging process, the core roller body 1 is mainly used to forge gear rings. By using a dedicated core roller body 1, it can be ensured that the workpiece is completed in one forging process. This not only improves production efficiency but also reduces production costs and ensures product quality. A groove 2 is machined in the middle of the transition arc 3. The groove 2 and the straight section of the core roller body 1 are machined into a smooth R transition. This design can ensure that the workpiece is completed in one forging process, thereby ensuring product quality and the service life of the core roller.
[0021] Example 2, see attached document Figures 1 to 4 Based on Embodiment 1, in order to maximize the adjustment angle of the distribution box body adjustment angle 2 at the top of the mounting frame adjustment angle 1, the groove 2 is set in an annular groove on the outer surface of the transition arc 3.
[0022] The main function of the core roller body is to forge the gear ring, ensuring that the workpiece is completed in one forging process, thereby guaranteeing product quality and the service life of the core roller, and reducing production costs.
[0023] In practical use, the core roller body 1 is used in the gear forging process. The core roller body 1 is mainly used for forging gear rings. By using the dedicated core roller body 1, it can be ensured that the workpiece is completed in one forging process. This not only improves production efficiency but also reduces production costs and ensures product quality. A groove 2 is machined in the middle of the transition arc 3. The groove 2 and the straight section of the core roller body 1 are machined into a smooth R transition. This design ensures that the workpiece is completed in one forging process, thereby ensuring product quality and the service life of the core roller. The main function of the dedicated core roller body is to forge gear rings, ensuring that the workpiece is completed in one forging process, thereby ensuring product quality, the service life of the core roller, and reducing production costs.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A core roll dedicated to a forged stepped gear blank, characterized by: Including the core roller main part (1), the end face of the core roller main part (1) is provided with a stable hole (4), the outside of the groove (2) is provided with a integral transition arc (3), the outer surface of the transition arc (3) is provided with the groove (2).
2. A core roll for forging a stepped gear forging according to claim 1, characterized in that: The core roller main part (1) is made of 5CrNiMo hot die forging tool steel.
3. A core roll for use in the forging of a stepped gear forging according to claim 1, characterized in that: The groove (2) is annular groove arranged on the outer surface of the transition arc (3).
4. A core roll for use in the forging of a stepped gear forging according to claim 1, characterized in that: The outer surface of the core roller main part (1) is in the shape of a ladder.
5. A core roll for use in the forging of a stepped gear forging according to claim 1, characterized in that: The stable hole (4) is provided with two groups, and the two groups of stable holes (4) are symmetrical about the center axis of the core roller main part (1).
6. A core roll for use in the forging of a stepped gear forging according to claim 1, characterized in that: The end face of the transition arc (3) is provided with a rounded corner.