Long axle for gear

By combining the shaft structure and reinforcing rod design with wear-resistant and anti-corrosion coating, the problem of deformation at the middle connection end of the long shaft is solved, improving its strength and protection capabilities.

CN224453367UActive Publication Date: 2026-07-03NINGBO AITIAN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO AITIAN AUTO PARTS CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-03

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  • Figure CN224453367U_ABST
    Figure CN224453367U_ABST
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Abstract

The utility model relates to long shaft technical field discloses a long shaft for gear, including long shaft main part, the long shaft main part is combined by first axle body, link axle and second axle body, the link axle links between first axle body and second axle body, the inside vertical fixed first reinforcing rod of link axle, the inside transverse fixed second reinforcing rod of link axle. The utility model discloses a long shaft main part is combined by first axle body, link axle and second axle body, and the link axle links between first axle body and second axle body, and the inside vertical fixed first reinforcing rod of link axle, the inside transverse fixed second reinforcing rod of link axle, and the second reinforcing rod is about the central axis symmetry distribution of first reinforcing rod, therefore the first reinforcing rod and second reinforcing rod cooperation formed the cross, and the link place of both is the right angle design, and first reinforcing rod and second reinforcing rod are all even distribution, and the use intensity of whole is preferably improved.
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Description

Technical Field

[0001] This utility model relates to the field of long shaft technology, specifically a long shaft for gears. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that continuously meshes to transmit motion and power. Based on different shapes, they are classified as spur gears, helical gears, bevel gears, etc. Gears usually appear in groups and are used to transmit rotation from one gear shaft to another. The teeth of a gear on one shaft mesh with the teeth of a gear on another shaft, thus establishing a relationship between the rotations of the two shafts. Therefore, the shaft is a very common component in gear operation.

[0003] Different shafts are used in the operation of gears. Shafts are common rotating parts in hardware accessories. They are mainly used to support gears, pulleys and other transmission components and transmit torque and load. Long shafts are included among them. In order to ensure their length requirements, long shafts usually have a connecting end in the middle. If the connecting end deforms, it will directly affect the operation of the long shaft. Utility Model Content

[0004] The purpose of this utility model is to provide a long shaft for gears, in order to meet the length requirements of the long shaft mentioned in the background art, most of them have a connecting end in the middle position, and if the position of the connecting end is deformed, it will directly affect the operation of the long shaft.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a long shaft for gears, comprising a long shaft body, the long shaft body being composed of a first shaft body, a connecting shaft, and a second shaft body, the connecting shaft being connected between the first shaft body and the second shaft body, the exterior of the first shaft body, the connecting shaft, and the second shaft body being coated with a protective layer body, the interior of the connecting shaft having a first reinforcing rod vertically fixed inside, and the interior of the connecting shaft having a second reinforcing rod horizontally fixed inside.

[0006] As a further technical solution of this utility model, the first shaft and the second shaft have the same length, and the length of the connecting shaft is less than the length of the first shaft or the second shaft.

[0007] As a further technical solution of this utility model, a first reserved hole is provided on the front end face of the first shaft, and a second reserved hole is provided on the front end face of the second shaft.

[0008] As a further technical solution of this utility model, the first reserved hole is distributed in three sets on the front end face of the first shaft, and the second reserved hole is distributed in three sets on the front end face of the second shaft.

[0009] As a further technical solution of this utility model, the first reinforcing rod is evenly distributed inside the connecting shaft, and the second reinforcing rod is evenly distributed inside the connecting shaft.

[0010] As a further technical solution of this utility model, the first reinforcing rod and the second reinforcing rod are fixed at a right angle, and the second reinforcing rod is symmetrically distributed about the central axis of the first reinforcing rod.

[0011] As a further technical solution of this utility model, the protective layer body is formed on the outer side wall of the long axis body, and the protective layer body includes a wear-resistant layer and an isolation and anti-corrosion layer.

[0012] As a further technical solution of this utility model, the isolation and anti-corrosion layer is coated on the outer wall of the long shaft body, and the wear-resistant layer is coated on the outer wall of the isolation and anti-corrosion layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the long shaft for gears not only improves the strength of the connection end, but also improves the protection capability and usability of the long shaft;

[0014] (1) The main body of the long shaft is composed of a first shaft, a connecting shaft and a second shaft. The connecting shaft is connected between the first shaft and the second shaft. A first reinforcing rod is fixed vertically inside the connecting shaft, and a second reinforcing rod is fixed horizontally inside the connecting shaft. The second reinforcing rod is symmetrically distributed about the central axis of the first reinforcing rod. Therefore, the first reinforcing rod and the second reinforcing rod cooperate to form a cross shape. The connection between the two is designed at a right angle. The first reinforcing rod and the second reinforcing rod are evenly distributed, which improves the overall strength during the working process.

[0015] (2) By coating the main body of the protective layer on the outer wall of the long shaft body, which is composed of a first shaft, a connecting shaft and a second shaft, the main body of the protective layer is coated on the outer wall of the first shaft, the connecting shaft and the second shaft. The main body of the protective layer includes an isolation and anti-corrosion layer and a wear-resistant layer. The wear-resistant layer is set on the outer surface of the isolation and anti-corrosion layer. Therefore, the wear-resistant layer is located on the outermost layer and plays the purpose of wear-resistant protection, thereby improving the overall protection capability during the working process.

[0016] (3) By opening a first reserved hole on the front end face of the first shaft body and a second reserved hole on the front end face of the second shaft body, the first reserved hole is distributed in three groups on the front end face of the first shaft body and the second reserved hole is distributed in three groups on the front end face of the second shaft body. Therefore, the first shaft body and the second shaft body have the same length and the first reserved hole and the second reserved hole are in the same position. Therefore, the two have the same style, which prevents the phenomenon of uneven counterweight on both sides of the connecting shaft and improves the usability of the long shaft body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a side sectional view of the connecting shaft of this utility model.

[0020] Figure 4 This is a partial side view of the protective layer of this utility model.

[0021] In the figure: 1. Main body of the long shaft; 2. First shaft body; 3. First reserved hole; 4. Connecting shaft; 5. Second shaft body; 6. Second reserved hole; 7. Main body of the protective layer; 8. First reinforcing rod; 9. Second reinforcing rod; 10. Wear-resistant layer; 11. Isolation and anti-corrosion layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 An embodiment of this utility model provides: a long shaft for gears, including a long shaft body 1, which is composed of a first shaft body 2, a connecting shaft 4, and a second shaft body 5. The connecting shaft 4 is connected between the first shaft body 2 and the second shaft body 5. The exterior of the first shaft body 2, the connecting shaft 4, and the second shaft body 5 are all coated with a protective layer body 7. A first reinforcing rod 8 is vertically fixed inside the connecting shaft 4, and a second reinforcing rod 9 is horizontally fixed inside the connecting shaft 4.

[0024] As a further technical solution of this utility model, the first shaft 2 and the second shaft 5 have the same length, and the length of the connecting shaft 4 is less than the length of the first shaft 2 or the second shaft 5.

[0025] As a further technical solution of this utility model, a first reserved hole 3 is provided on the front end face of the first shaft 2, and a second reserved hole 6 is provided on the front end face of the second shaft 5.

[0026] As a further technical solution of this utility model, the first reserved hole 3 is distributed in three sets on the front end face of the first shaft 2, and the second reserved hole 6 is distributed in three sets on the front end face of the second shaft 5.

[0027] As a further technical solution of this utility model, the first reinforcing rod 8 is evenly distributed inside the connecting shaft 4, and the second reinforcing rod 9 is evenly distributed inside the connecting shaft 4.

[0028] As a further technical solution of this utility model, the first reinforcing rod 8 and the second reinforcing rod 9 are fixed at a right angle, and the second reinforcing rod 9 is symmetrically distributed about the central axis of the first reinforcing rod 8.

[0029] As a further technical solution of this utility model, the protective layer body 7 is formed on the outer side wall of the long axis body 1, and the protective layer body 7 includes a wear-resistant layer 10 and an isolation and anti-corrosion layer 11.

[0030] As a further technical solution of this utility model, the isolation and anti-corrosion layer 11 is coated on the outer side wall of the long shaft body 1, and the wear-resistant layer 10 is coated on the outer side wall of the isolation and anti-corrosion layer 11.

[0031] The further long shaft body 1 is composed of a first shaft body 2, a connecting shaft 4, and a second shaft body 5. The connecting shaft 4 is connected between the first shaft body 2 and the second shaft body 5. Therefore, the exterior of the first shaft body 2, the connecting shaft 4, and the second shaft body 5 are all coated with a wear-resistant layer 10 and an isolation and anti-corrosion layer 11 for protection. In combination with the prior art, the wear-resistant layer 10 can be a ceramic coating or other coating for wear protection, and the isolation and anti-corrosion layer 11 can be a KNM1000 zirconium oxide coating, a titanium nitride coating, etc.

[0032] Furthermore, if the first shaft 2 and the second shaft 5 are solid designs, then the first reinforcing rod 8 and the second reinforcing rod 9 can be evenly distributed inside the first shaft 2 and the second shaft 5.

[0033] Working principle: First, during operation, the long shaft body 1 is composed of a first shaft 2, a connecting shaft 4, and a second shaft 5. The connecting shaft 4 connects the first shaft 2 and the second shaft 5. A first reinforcing rod 8 is vertically fixed inside the connecting shaft 4, and a second reinforcing rod 9 is horizontally fixed inside the connecting shaft 4. The second reinforcing rod 9 is symmetrically distributed about the central axis of the first reinforcing rod 8. Therefore, the first reinforcing rod 8 and the second reinforcing rod 9 cooperate to form a cross shape. The connection between the two is designed at a right angle. The first reinforcing rod 8 and the second reinforcing rod 9 are evenly distributed to ensure the stability of the position of the connecting shaft 4 and to ensure the connection between the first shaft 2 and the second shaft 5. The protective layer body 7 is coated on the outer wall of the first shaft 2, the connecting shaft 4, and the second shaft 5. The wear-resistant layer 10 is set on the outer surface of the isolation and anti-corrosion layer 11 to protect the long shaft body 1 during operation.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A long shaft for a gear wheel comprising a long shaft body (1), characterized in that: The long shaft body (1) is composed of a first shaft (2), a connecting shaft (4) and a second shaft (5). The connecting shaft (4) is connected between the first shaft (2) and the second shaft (5). The exterior of the first shaft (2), the connecting shaft (4) and the second shaft (5) are all coated with a protective layer body (7). A first reinforcing rod (8) is vertically fixed inside the connecting shaft (4), and a second reinforcing rod (9) is horizontally fixed inside the connecting shaft (4).

2. The long shaft for a gear according to claim 1, wherein: The first shaft (2) and the second shaft (5) have the same length, and the length of the connecting shaft (4) is less than the length of the first shaft (2) or the second shaft (5).

3. The long shaft for gear wheels according to claim 1, characterized in that: The first shaft (2) has a first reserved hole (3) on its front end face, and the second shaft (5) has a second reserved hole (6) on its front end face.

4. The long shaft for a gear according to claim 3, wherein: The first reserved hole (3) is distributed in three groups on the front end face of the first shaft (2), and the second reserved hole (6) is distributed in three groups on the front end face of the second shaft (5).

5. The long shaft for gear wheels according to claim 1, characterized in that: The first reinforcing rod (8) is evenly distributed inside the connecting shaft (4), and the second reinforcing rod (9) is evenly distributed inside the connecting shaft (4).

6. The long shaft for gear wheels according to claim 1, characterized in that: The first reinforcing rod (8) and the second reinforcing rod (9) are fixed at right angles, and the second reinforcing rod (9) is symmetrically distributed about the central axis of the first reinforcing rod (8).

7. A long shaft for gears according to claim 1, characterized in that: The protective layer body (7) is formed on the outer side wall of the long axis body (1), and the protective layer body (7) includes a wear-resistant layer (10) and an isolation and anti-corrosion layer (11).

8. The long shaft for a gear according to claim 7, wherein: The isolation and anti-corrosion layer (11) is coated on the outer side wall of the long shaft body (1), and the wear-resistant layer (10) is coated on the outer side wall of the isolation and anti-corrosion layer (11).