High-precision automobile pin shaft

Abstract

The utility model relates to the technical field of automobile pin shafts, in particular to a high-precision automobile pin shaft which comprises a pin shaft column, a first end face and a second end face, a pin hole is formed in the end, close to the first end face, of the pin shaft column, first annular grooves are formed in the two sides of the surface of the pin shaft column, and lubricating oil is arranged in the two first annular grooves. A plurality of lubricating grooves are formed between the two first annular grooves, lubricating oil is arranged in the multiple lubricating grooves, and the multiple lubricating grooves are spirally arranged along the surface of the pin shaft column. According to the pin shaft column, the lubricating grooves are formed, the contact surface of lubricating oil is increased, the strength of the pin shaft column is improved, the contact surface of the lubricating oil is increased, and the lubricating effect is remarkable.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile pins, in particular to a high-precision automobile pin. Background Art

[0002] With the continuous improvement of people's living standards and the increasing popularity of automobiles, people's demand for a wider range of vehicle types is increasing, and so are the demands for automotive design and innovation. Pins are essential components in automobile manufacturing. Pins can be used for both static fixed connections and relative motion with the connected parts. They are primarily used at the hinge joint between two parts to form a hinge connection. Pins are typically locked with a cotter pin, ensuring reliable operation and easy disassembly.

[0003] For example, the high-precision automotive pin shaft, named after the patent application "CN213839267U," has lubricating material added to the annular and rectangular grooves, facilitating and saving lubricating material. However, simply adding lubricating oil to the annular and rectangular grooves does not provide sufficient lubrication. Furthermore, the lubricating oil easily leaks from the annular and rectangular grooves, affecting the lubrication effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-precision automobile pin shaft.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-precision automobile pin is designed, including a pin column, a first end face and a second end face. A pin hole is provided at one end of the pin column close to the first end face. First annular grooves are provided on both sides of the surface of the pin column. Lubricating oil is provided inside the two first annular grooves. Multiple lubrication grooves are provided between the two first annular grooves. Lubricating oil is provided inside the multiple lubrication grooves. The multiple lubrication grooves are all arranged in a spiral shape along the surface of the pin column.

[0007] Preferably, a plurality of first reinforcing ribs are evenly and annularly arranged on the surface of the second end face.

[0008] Preferably, a second reinforcing rib is provided at one end of the plurality of first reinforcing ribs close to the pin shaft column.

[0009] Preferably, the anti-loss component includes a second annular groove and a sealing rubber ring, the second annular groove is annularly arranged on the surface of the pin column, and the sealing rubber ring is annularly arranged on the inner wall of the second annular groove.

[0010] Preferably, mounting grooves are provided at both upper and lower ends of the pin hole, and the inner wall of the mounting groove on the side close to the pin hole is flat.

[0011] Preferably, the cross-sections of the two first annular grooves are both trapezoidal.

[0012] The utility model proposes a high-precision automobile pin shaft, which has the following beneficial effects: the lubrication groove is provided to increase the contact surface of the lubricating oil, and the multiple lubrication grooves are spirally arranged along the surface of the pin shaft column, which not only increases the strength of the pin shaft column, but also increases the contact surface of the lubricating oil, and the lubrication effect is significant; at the same time, the anti-loss component is provided, which can block the lubricating oil through the sealing rubber ring, preventing the lubricating oil from falling out from the first annular groove and the inside of the lubrication groove, thereby improving the lubrication effect and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is the main view of the utility model;

[0015] Figure 3 This is a cross-sectional view of position A of the present utility model.

[0016] In the figure: pin column 1, first end face 2, second end face 3, pin hole 4, first annular groove 5, lubrication groove 6, first reinforcing rib 7, second reinforcing rib 8, second annular groove 9, sealing rubber ring 10, mounting groove 11. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-3 A high-precision automotive pin shaft comprises a pin shaft column 1, a first end face 2 and a second end face 3. A pin hole 4 is provided at one end of the pin shaft column 1 near the first end face 2. First annular grooves 5 are provided on both sides of the surface of the pin shaft column 1. Lubricating oil is provided inside the two first annular grooves 5. A plurality of lubricating grooves 6 are provided between the two first annular grooves 5. Lubricating oil is provided inside the plurality of lubricating grooves 6. The plurality of lubricating grooves 6 are all arranged in a spiral shape along the surface of the pin shaft column 1. The provision of the lubricating grooves 6 increases the contact surface of the lubricating oil. By arranging the plurality of lubricating grooves 6 in a spiral shape along the surface of the pin shaft column 1, the strength of the pin shaft column 1 is increased, and the contact surface of the lubricating oil is increased, resulting in a significant lubrication effect.

[0019] A plurality of first reinforcing ribs 7 are evenly and annularly arranged on the surface of the second end face 3. The first reinforcing ribs 7 can increase the strength of the second end face 3.

[0020] A second reinforcing rib 8 is provided at one end of the plurality of first reinforcing ribs 7 close to the pin shaft column 1. By providing the second reinforcing rib 8, the plurality of first reinforcing ribs 7 can be formed into a whole, and the strength is higher.

[0021] The anti-loss assembly includes a second annular groove 9 and a sealing rubber ring 10. The second annular groove 9 is annularly arranged on the surface of the pin column 1, and the sealing rubber ring 10 is annularly arranged on the inner wall of the second annular groove 9. The anti-loss assembly can block the lubricating oil through the sealing rubber ring 10, preventing the lubricating oil from falling out of the first annular groove 5 and the lubrication groove 6, thereby improving the lubrication effect and extending the service life.

[0022] The pin hole 4 is provided with mounting grooves 11 at both ends, and the inner wall of the mounting groove 11 near the pin hole 4 is flat. Since the mounting groove 11 is flat, it is convenient for the fastener to pass through the pin hole 4, so that the fastener can fit more closely with the pin shaft column 1.

[0023] The cross sections of the two first annular grooves 5 are both trapezoidal, which can hold more lubricating oil than a rectangle, thus improving the lubrication effect.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision automobile pin, comprising a pin column (1), a first end surface (2) and a second end surface (3), characterized in that: A pin hole (4) is provided at one end of the pin shaft column (1) close to the first end face (2), first annular grooves (5) are provided on both sides of the surface of the pin shaft column (1), lubricating oil is provided inside the two first annular grooves (5), a plurality of lubricating grooves (6) are provided between the two first annular grooves (5), lubricating oil is provided inside the plurality of lubricating grooves (6), and the plurality of lubricating grooves (6) are spirally arranged along the surface of the pin shaft column (1), and anti-loss components are provided on both sides of the two first annular grooves (5).

2. A high-precision automobile pin according to claim 1, characterized in that: A plurality of first reinforcing ribs (7) are evenly and annularly provided on the surface of the second end surface (3).

3. A high-precision automobile pin according to claim 2, characterized in that: A second reinforcing rib (8) is provided at one end of the plurality of first reinforcing ribs (7) close to the pin shaft column (1).

4. The high-precision automobile pin according to claim 1, characterized in that: The anti-loss component comprises a second annular groove (9) and a sealing rubber ring (10), wherein the second annular groove (9) is annularly arranged on the surface of the pin shaft column (1), and the sealing rubber ring (10) is annularly arranged on the inner wall of the second annular groove (9).

5. The high-precision automobile pin according to claim 1, characterized in that: Mounting grooves (11) are provided at both upper and lower ends of the pin hole (4), and the inner wall of the mounting groove (11) on the side close to the pin hole (4) is a plane.

6. The high-precision automobile pin according to claim 1, characterized in that: The cross-sections of the two first annular grooves (5) are both trapezoidal.

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