A wear-resistant shaft pin

Abstract

This utility model relates to the field of shaft pin technology and discloses a wear-resistant shaft pin, including a shaft body. An auxiliary component includes multiple grooves on the outer wall of the shaft body, each groove containing a roller. The outer wall of each roller has a slot. A storage chamber is located inside the shaft body, with multiple mating grooves on its inner wall, each groove containing a guide plate. A blocking block is located at one end of the shaft body, containing a through groove. The inner wall of the through groove has an enlarged hole, which contains a support plate and a spring. A protrusion is located inside the through groove. This utility model, by embedding multiple rotatable rollers on the outer wall of the shaft body and having the protruding rollers contact mechanical components, improves the sliding effect between the shaft pin and the mechanical components through roller rotation. Simultaneously, the rotation of the rollers, combined with the storage chamber inside the shaft body, automatically replenishes lubricant temporarily, ensuring effective lubrication of the shaft pin, reducing wear between the shaft pin and mechanical components, and increasing the service life of the shaft pin.

Description

Technical Field

[0001] This utility model relates to the field of shaft pin technology, specifically a wear-resistant shaft pin. Background Technology

[0002] A pin is a cylindrical part used to connect two or more mechanical components. It typically has a smooth cylindrical surface and may have chamfered ends or heads to facilitate installation and positioning. Although a pin is a relatively simple mechanical component, it plays an extremely important role in various mechanical systems. Proper selection, installation, and maintenance of pins can effectively improve the performance and reliability of mechanical systems, and are crucial for the normal operation and performance of these systems.

[0003] During use, the relative movement between components will cause friction between the pin and the component. If the lubrication of the pin is insufficient, the friction pressure will increase, and the wear of the pin will be significantly accelerated. Wear will cause the pin diameter to shrink and increase the gap between it and the connecting component, making it easy to loosen and affecting the movement stability of the mechanical structure. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant shaft pin to solve the problem mentioned in the background art that during use, the shaft pin will rub against the mechanical parts due to the movement between the parts. This friction will accelerate the wear of the external lubricant on the shaft pin. If the lubricant is not replenished in time, it will cause wear on the shaft pin, resulting in a reduction in the diameter of the shaft pin, causing it to loosen with the mechanical parts and affecting the stability of the movement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wear-resistant shaft pin, comprising a shaft body, wherein an auxiliary component for improving the wear resistance of the shaft pin is provided inside the shaft body, the auxiliary component comprising a plurality of grooves provided on the outer wall of the shaft body, wherein a roller is provided inside each of the plurality of grooves, and a slot is provided on the outer wall of the roller, wherein a storage chamber is provided inside the shaft body, and a plurality of mating grooves are provided on the inner wall of the storage chamber, wherein a guide plate is provided inside each of the plurality of mating grooves;

[0006] A block is provided at one end of the shaft, a through groove is provided inside the block, an enlarged hole is provided on the inner wall of the through groove, a support plate and a spring are provided on the inner wall of the enlarged hole, and a protrusion is provided inside the through groove.

[0007] Preferably, a plurality of the grooves are distributed in a ring on the outer wall of the shaft, the roller is located in the groove and is rotatably connected to the inner wall of the groove through a damping shaft, and has a damping feel when rotating, and one side of the roller extends out of the groove.

[0008] Preferably, the slot is the outer wall of the roller, and the position of the slot can be switched by rotating the roller. The shaft body has a hollow structure and a storage compartment is reserved inside.

[0009] Preferably, a plurality of the docking grooves are arranged in a ring on the inner wall of the storage compartment, and their positions correspond to the grooves. One end of each docking groove communicates with the inside of the groove, and the guide plate is connected to the inner wall of the docking groove.

[0010] Preferably, one end of the plug can be embedded in the storage compartment and screwed to the inner wall of the storage compartment via threads. The through groove passes through the plug and can be connected to the inside of the storage compartment when installed with the shaft knob.

[0011] Preferably, one end of the protrusion has a tapered angle, the protrusion is located in the through groove and is slidably connected to the inner wall of the through groove, the support plate has a hollow structure and is connected to the inner wall of the enlarged hole, and the two ends of the spring are respectively connected to the support plate and the inner wall of the protrusion.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By designing the shaft as a split structure, consisting of a shaft body and a plug, a groove is reserved on the outer wall of the shaft body and a roller is installed. When the shaft pin is in use, the roller protrudes and comes into contact with the mechanical parts. When the friction between the mechanical parts and the roller is large, it will drive the roller and the shaft body to rotate. Through rotation, the friction between the mechanical parts and the shaft pin can be reduced, playing an auxiliary lubrication role, thereby improving the wear resistance of the shaft pin.

[0014] 2. Simultaneously, the hollowed-out interior of the shaft body is reserved to store lubricant. The storage chamber is connected to the groove through a mating groove on the inner wall. Therefore, the pressure inside the storage chamber can push the lubricant into the groove. When the roller rolls into the groove on the outer wall of the roller and aligns with the mating groove, the lubricant is captured. When the roller rolls outward, the lubricant can be applied to the inner wall of the mechanical parts to replenish the lubricant. This ensures the lubrication effect between the shaft pin and the mechanical parts. By reducing friction on the shaft pin through lubrication, the wear resistance of the shaft pin is indirectly improved, and the service life of the shaft pin is increased.

[0015] This invention features multiple rotatable rollers embedded in the outer wall of the shaft body. These rollers protrude and contact mechanical components. The rotation of the rollers helps improve the sliding effect between the shaft pin and the mechanical components. Simultaneously, the rotation of the rollers, in conjunction with the storage chamber inside the shaft body, automatically replenishes the lubricant temporarily, ensuring the lubrication effect of the shaft pin, reducing wear between the shaft pin and the mechanical components, and increasing the service life of the shaft pin. Attached Figure Description

[0016] Figure 1 This is an overall isometric view of the present invention;

[0017] Figure 2 This is a structural diagram showing the separate components of the shaft, roller, and plug of this utility model.

[0018] Figure 3 This is a cross-sectional view of the shaft of this utility model;

[0019] Figure 4 This is an enlarged view of part A of the present invention;

[0020] Figure 5 This is a side sectional view of the blocking block of this utility model.

[0021] In the diagram: 1. Shaft; 2. Groove; 3. Roller; 301. Hole; 4. Storage compartment; 401. Connecting groove; 402. Guide plate; 5. Block; 501. Through groove; 6. Enlarged hole; 601. Spring; 602. Support plate; 7. Protrusion. 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] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0024] Please see Figures 1-4 A wear-resistant shaft pin includes a shaft body 1. An auxiliary component for improving the wear resistance of the shaft pin is provided inside the shaft body 1. The auxiliary component includes multiple grooves 2 on the outer wall of the shaft body 1, which can accommodate rollers 3, allowing the rollers 3 to be embedded within the shaft body 1. Each groove 2 contains a roller 3, with one side of the roller 3 extending out of the groove 2, thus protruding from the shaft body 1. Therefore, the roller 3 will abut against the inner wall of the mechanical component. The outer wall of the roller 3 is provided with a slot 301. A storage chamber 4 is provided inside the shaft body 1 for storing lubricant. Multiple mating grooves 401 are provided on the inner wall of the storage chamber 4. The mating grooves 401 are distributed and communicate with the grooves 2. Each mating groove 401 contains a guide plate 402, which can position the lubricant at the angle when it is injected into the groove 2.

[0025] Multiple grooves 2 are distributed in a ring on the outer wall of the shaft 1. The roller 3 is located in the groove 2 and is rotatably connected to the inner wall of the groove 2 through a damping shaft. It has a damping feel when rotating. One side of the roller 3 extends out of the groove 2. The slot 301 is the outer wall of the roller 3. The position of the slot 301 can be switched by rotating the roller 3. The shaft 1 has a hollow structure inside and a storage compartment 4 is reserved. Multiple docking slots 401 are distributed in a ring on the inner wall of the storage compartment 4 and their distribution positions correspond to the grooves 2. One end of the docking slot 401 communicates with the inside of the groove 2. The guide plate 402 is connected to the inner wall of the docking slot 401.

[0026] Specifically: Since the shaft 1 has a hollow internal structure, lubricant and high-pressure gas can be injected into the storage chamber 4 of the shaft 1. It is then assembled with the shaft 1 by screwing on the plug 5. During use, since the roller 3 is installed on the outer wall of the shaft 1 and protrudes from the groove 2, it will abut against the inner wall of the mechanical component. When the lubricant between the shaft 1 and the mechanical component is depleted, the mechanical component will first generate friction with the roller 3. The rotatable characteristic of the roller 3 can assist in lubrication between the mechanical component and the shaft 1. When the roller 3 rotates, the groove 301 on the outer wall rotates to correspond with the mating groove 401. The lubricant in the storage chamber 4 can be injected into the groove 2 through the mating groove 401 by air pressure and temporarily stored in the groove 301 on the outer wall of the roller 3. Then, when the area of ​​the groove 301 rotates to the outside of the groove 2 by the rotation of the roller 3, the lubricant will be applied to the inner wall of the mechanical component, thereby temporarily replenishing the lubricant, ensuring the lubrication effect between the shaft 1 and the mechanical component, reducing friction with the shaft 1, and reducing wear of the shaft pin.

[0027] Please see Figure 2 and Figure 5 A block 5 is provided at one end of the shaft body 1. The block 5 and the shaft body 1 are separate structures. A through groove 501 is provided inside the block 5. One end of the through groove 501 is connected to the storage chamber 4 inside the shaft body 1, so it is convenient to inject lubricant and gas into the storage chamber 4 through the through groove 501. An enlarged hole 6 is provided on the inner wall of the through groove 501. The size of the enlarged hole 6 is larger than that of the protrusion 7. Therefore, when the protrusion 7 is in the area of ​​the enlarged hole 6, the through groove 501 can be cleared. A support plate 602 and a spring 601 are provided on the inner wall of the enlarged hole 6. The spring 601 can support the protrusion 7. The protrusion 7 is provided inside the through groove 501. One end of the protrusion 7 is tapered. With the help of the enlarged hole 6, the through groove 501 can only be cleared in one direction.

[0028] One end of the block 5 can be embedded in the storage compartment 4 and screwed to the inner wall of the storage compartment 4 by threads. The through groove 501 passes through the block 5 and can be connected to the inside of the storage compartment 4 when the knob of the shaft 1 is installed. One end of the protrusion 7 is tapered and is located in the through groove 501 and is slidably connected to the inner wall of the through groove 501. The support plate 602 has a hollow structure and is connected to the inner wall of the enlarged hole 6. The two ends of the spring 601 are connected to the support plate 602 and the inner wall of the protrusion 7, respectively.

[0029] Specifically: Before the shaft 1 is used, the injection needle can be inserted into the through groove 501 of the plug 5, and the lubricant and high-pressure gas can be injected into the storage chamber 4 through the through groove 501 to replenish the lubricant. During the injection process, the pressure of the lubricant injection pushes the protrusion 7 to slide and contract in the through groove 501, so that the protrusion 7 slides to the area of ​​the enlarged hole 6. The enlarged hole 6, together with the tapered angle of one end of the protrusion 7, clears the through groove 501, so that the lubricant and gas can flow into the storage chamber 4. With the help of the spring 601 to support the protrusion 7, the through groove 501 can only be cleared in one direction, avoiding the leakage of the internal lubricant.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant shaft pin, comprising a shaft body (1), wherein the shaft body (1) is provided with an auxiliary component for improving the wear resistance of the shaft pin, characterized in that: The auxiliary component includes multiple grooves (2) provided on the outer wall of the shaft (1), each groove (2) is provided with a roller (3), the outer wall of the roller (3) is provided with a slot (301), the shaft (1) is provided with a storage compartment (4), the inner wall of the storage compartment (4) is provided with multiple docking slots (401), and each docking slot (401) is provided with a guide plate (402). A block (5) is provided at one end of the shaft (1). A through groove (501) is provided inside the block (5). An enlarged hole (6) is provided on the inner wall of the through groove (501). A support plate (602) and a spring (601) are provided on the inner wall of the enlarged hole (6). A protrusion (7) is provided inside the through groove (501).

2. The wear-resistant shaft pin according to claim 1, characterized in that: Multiple grooves (2) are distributed in a ring on the outer wall of the shaft (1). The roller (3) is located in the groove (2) and is rotatably connected to the inner wall of the groove (2) through a damping shaft. It has a damping feel when rotating. One side of the roller (3) extends out of the groove (2).

3. The wear-resistant shaft pin according to claim 2, characterized in that: The slot (301) is the outer wall of the roller (3), and the position of the slot (301) can be switched by rotating the roller (3). The shaft (1) has a hollow structure inside and a storage compartment (4) is reserved.

4. The wear-resistant shaft pin according to claim 1, characterized in that: Multiple docking grooves (401) are arranged in a ring on the inner wall of the storage compartment (4), and their positions correspond to the grooves (2). One end of each docking groove (401) communicates with the inside of the groove (2), and the guide plate (402) is connected to the inner wall of the docking groove (401).

5. A wear-resistant shaft pin according to claim 1, characterized in that: One end of the plug (5) can be embedded in the storage compartment (4) and screwed to the inner wall of the storage compartment (4) by threads. The through groove (501) passes through the plug (5) and can be connected to the inside of the storage compartment (4) when it is installed with the knob of the shaft (1).

6. A wear-resistant shaft pin according to claim 5, characterized in that: One end of the protrusion (7) is tapered. The protrusion (7) is located in the through groove (501) and is slidably connected to the inner wall of the through groove (501). The support plate (602) has a hollow structure and is connected to the inner wall of the enlarged hole (6). The two ends of the spring (601) are respectively connected to the support plate (602) and the inner wall of the protrusion (7).

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