Easily-disassembled shaft pin

Abstract

The utility model relates to the technical field of shaft pins, in particular to an easy-to-disassemble shaft pin which comprises a shaft pin rod and a shaft shoulder which are arranged on a shaft pin body and are of an integrated structure, a pin stopping piece is inserted in the end position of the shaft pin rod in an interference mode, an upper movable seat and a lower movable seat are movably clamped in the pin stopping piece, and a spring locking piece is connected between the upper movable seat and the lower movable seat. A positioning plate is arranged above the shaft shoulder, one side of the lower portion of the positioning plate is connected with a limiting seat, an inner ring protruding ring is integrally arranged on an inner ring of the limiting seat and is in clearance fit with the shaft pin rod, a fixing lug is connected to the outer side end of the shaft shoulder, and a drawing hole is formed in the fixing lug. According to the shaft pin easy to disassemble, the fixing lug with the drawing hole is arranged on the shaft shoulder portion, a stress point is provided for disassembly of the shaft pin, the limiting base used for positioning is arranged on the shaft pin rod, limiting and stabilizing treatment is conducted for disassembly of the shaft pin, it is guaranteed that the shaft pin can be disassembled relatively smoothly, and maintenance treatment of equipment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of shaft pin technology, specifically an easy-to-disassemble shaft pin. Background Technology

[0002] Axle pins are a type of standardized fastener that can provide both static fixation and relative movement with the connected parts. They are primarily used at the hinge joints of two parts to form a hinge connection. In some cement processing equipment, axle pins are widely used in several critical components to ensure the stability and functionality of the mechanical structure. To ensure the safety and stability of the equipment, regular inspection of critical components is essential. In such cases, axle pins may need to be disassembled to inspect the wear, lubrication condition, and overall structural integrity of their location.

[0003] When disassembling existing shaft pins, dust and impurities embedded between the shaft pin and the mating hole can affect the smoothness of disassembly. At the same time, if the shaft pin is misaligned during disassembly, it will generate greater resistance, affecting the smoothness of disassembly. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-disassemble shaft pin to solve the problems mentioned in the background art, such as the smoothness of disassembly of shaft pins in the current market being affected by dust, impurities, etc. embedded between the shaft pin and the mating hole, and the large resistance generated if the shaft pin is misaligned during disassembly, which also affects the smoothness of disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easily detachable shaft pin, comprising a shaft pin body, wherein the shaft pin body is provided with an integrally structured shaft pin rod and a shaft shoulder, and a stop pin is interference-fitted to the end of the shaft pin rod, wherein an upper moving seat and a lower moving seat are movably engaged within the stop pin, and a spring locking member is connected between the upper moving seat and the lower moving seat, a positioning plate is provided above the shaft shoulder, and a limiting seat is connected to one side below the positioning plate, wherein an inner ring protrusion is integrally provided in the inner ring of the limiting seat, and the inner ring protrusion is clearance-fitted with the shaft pin rod, and a fixing ear is connected to the outer end of the shaft shoulder, and a pull-out hole is provided on the fixing ear.

[0006] Preferably, the positioning plate has fastening holes, and the positioning plate and the limiting seat are fixed by welding.

[0007] Preferably, the inner ring of the limiting seat is embedded with a ball bearing, and the ball bearing is in contact with the shaft pin.

[0008] Preferably, the cross-section of the inner ring is an isosceles triangle, and the inner ring is close to the outer side of the limiting seat.

[0009] Preferably, the shoulder is a T-shaped frustum structure, and the shoulder is also engaged with the limiting seat.

[0010] Preferably, the upper moving seat and the lower moving seat are respectively provided with an upper locking seat and a lower locking seat that are movably inserted into each other on their opposite sides, and the spring locking member is fastened in the upper locking seat and the lower locking seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The easily detachable shaft pin has a fixing lug with a pull-out hole at the shoulder, providing a force point for disassembly. A positioning limit seat is provided on the shaft pin rod for positioning and stabilizing the shaft pin during disassembly, ensuring that the shaft pin can be disassembled relatively smoothly for equipment maintenance. The easily detachable shaft pin has a ball bearing structure within the positioning seat, which makes the insertion and removal of the shaft pin smoother. An inner ring protrusion is integrally formed within the positioning seat, which can scrape off impurities adhering to the shaft pin rod during disassembly, achieving preliminary cleaning of the shaft pin and preventing impurities from entering the positioning seat, thus extending the service life of the shaft pin positioning part. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an easily detachable shaft pin structure according to the present invention;

[0013] Figure 2 This utility model provides an easy-to-disassemble shaft pin. Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This is a side view of an easily detachable shaft pin according to the present invention.

[0015] In the diagram: 1. Shaft pin body; 2. Shaft pin rod; 3. Positioning plate; 301. Fastening hole; 302. Limiting seat; 303. Inner ring protrusion; 304. Ball bearing; 4. Shaft shoulder; 5. Stop pin; 501. Upper moving seat; 502. Spring locking element; 503. Lower moving seat; 504. Upper locking seat; 505. Lower locking seat; 6. Fixing ear; 601. Pull-out hole. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: an easily detachable shaft pin, including a shaft pin body 1, on which an integral shaft pin rod 2 and a shaft shoulder 4 are provided. A stop pin 5 is interference-fitted to the end of the shaft pin rod 2. An upper moving seat 501 and a lower moving seat 503 are movably engaged within the stop pin 5, and a spring locking member 502 connects the upper moving seat 501 and the lower moving seat 503. A positioning plate 3 is provided above the shaft shoulder 4, and a limit seat 302 is connected to one side of the lower part of the positioning plate 3. A fastening hole 301 is provided on the positioning plate 3, and the positioning plate 3 and the limit seat 302 are fixed by welding. This structure allows the positioning plate 3 to be bolted to the housing of the production equipment through the fastening hole 301, ensuring the stable and reliable position of the limit seat 302, thereby allowing... The shaft pin body 1, which passes through the limiting seat 302, has a reliable positioning structure to prevent the shaft pin body 1 from shifting and ensure that the shaft pin body 1 has a reliable connection structure. At the same time, the shaft pin body 1 has a limiting structure to prevent shifting and obstruction when disassembling. The inner ring of the limiting seat 302 is embedded with a ball 304, and the ball 304 contacts and cooperates with the shaft pin 2. This structure allows the shaft pin 2 to reduce resistance through the ball 304 when the shaft pin body 1 and the limiting seat 302 move relative to each other, facilitating the disassembly and assembly of the shaft pin body 1. The inner ring of the limiting seat 302 is integrally provided with an inner ring protrusion 303, and the inner ring protrusion 303 is clearance-fitted with the shaft pin 2. The cross-section of the inner ring protrusion 303 is an isosceles triangular structure, and the inner ring protrusion 303 is close to the limiting seat 2. On the outer side of the seat 302, this structure allows the inner ring convex ring 303 to form a pointed tip through a triangular structure. This allows the inner ring convex ring 303 to scrape off impurities adhering to the shaft pin 2 through the pointed tip, preventing impurities from entering the ball bearing 304 during the disassembly of the shaft pin 2. The shoulder 4 has a T-shaped frustum structure, and the shoulder 4 also engages with the limiting seat 302. This structure, through the T-shaped frustum structure of the shoulder 4, allows a portion of the shoulder 4 to be located outside the limiting seat 302, sealing the through hole of the limiting seat 302 and reducing the entry of impurities into the limiting seat 302. The outer end of the shoulder 4 is connected to a fixing lug 6, and the fixing lug 6 has a pull-out hole 601. The pull-out hole 601 allows for easy disassembly and assembly of the shaft pin body 1. The pull provides a positioning point, allowing the shaft pin body 1 to be easily pushed, pulled or rotated, which facilitates the assembly and disassembly of the shaft pin body 1. The upper moving seat 501 and the lower moving seat 503 are respectively provided with an upper locking seat 504 and a lower locking seat 505 that are movably inserted into each other on their opposite sides, and the spring locking member 502 is fastened in the upper locking seat 504 and the lower locking seat 505. This structure can be used to press the upper moving seat 501 and the lower moving seat 503 to retract them into the stop pin member 5, which facilitates the assembly and disassembly of the shaft pin body 1. After the force of pressing the upper moving seat 501 and the lower moving seat 503 is removed, the spring locking member 502 will cause the upper moving seat 501 and the lower moving seat 503 to pop out, realizing the automatic locking of the shaft pin body 1.

[0018] Working principle: When using this easy-to-disassemble shaft pin, first press the upper moving seat 501 and the lower moving seat 503 into the stop pin 5. The upper locking seat 504 and the lower locking seat 505 move relative to each other, compressing the spring locking element 502. Then, the shaft pin 2 is inserted into the limit seat 302. The ball bearing 304 reduces the resistance of the shaft pin 2. When the shaft pin 2 passes through the part of the equipment that needs to be fixed, press the upper moving seat 501 and the lower moving seat 503 into the stop pin 5 again. After the shaft pin body 1 is installed, the spring locking element 502 causes the upper moving seat 501 and the lower moving seat 503 to pop out automatically, achieving locking. Then, the positioning plate 3 is connected to the equipment through the fastening hole 301. After bolt tightening, the positioning of the shaft pin body 1 is achieved. When the shaft pin body 1 needs to be disassembled, the upper moving seat 501 and the lower moving seat 503 are pressed. Then, with the help of tools and the pull hole 601, the shaft pin body 1 is pulled and rotated. The shaft shoulder 4 is tightened with the fixing ear 6 to ensure that the shaft pin body 1 can be reliably pulled. During the movement of the shaft pin rod 2, the inner ring convex ring 303 scrapes away the dust, impurities and other objects on the shaft pin rod 2 to prevent the ball bearing 304 from getting stuck and to achieve the initial cleaning of the shaft pin body 1. At the same time, the limit seat 302 limits the movement of the shaft pin rod 2 to ensure that the shaft pin rod 2 moves stably and facilitates the disassembly of the shaft pin body 1, thus completing a series of tasks.

[0019] 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 detachable pivot pin, comprising a pivot pin body (1), characterized in that: The shaft pin body (1) is provided with an integral shaft pin rod (2) and a shaft shoulder (4), and a stop pin (5) is inserted into the end of the shaft pin rod (2). An upper moving seat (501) and a lower moving seat (503) are movably engaged in the stop pin (5), and a spring locking member (502) is connected between the upper moving seat (501) and the lower moving seat (503). A positioning plate (3) is provided above the shaft shoulder (4), and a limiting seat (302) is connected to one side below the positioning plate (3). An inner ring protrusion (303) is integrally provided in the inner ring of the limiting seat (302), and the inner ring protrusion (303) is clearance-fitted with the shaft pin rod (2). A fixing ear (6) is connected to the outer end of the shaft shoulder (4), and a pull hole (601) is provided on the fixing ear (6).

2. The easily detachable shaft pin according to claim 1, characterized in that: The positioning plate (3) has a fastening hole (301), and the positioning plate (3) and the limiting seat (302) are fixed by welding.

3. The easily detachable shaft pin according to claim 1, characterized in that: The inner ring of the limiting seat (302) is fitted with a ball (304), and the ball (304) is in contact with the shaft pin (2).

4. The easily detachable shaft pin according to claim 1, characterized in that: The inner ring (303) has an isosceles triangular cross section and is close to the outer side of the limiting seat (302).

5. The easily detachable shaft pin according to claim 1, characterized in that: The shoulder (4) is a T-shaped frustum structure, and the shoulder (4) is also engaged with the limiting seat (302).

6. The easily detachable shaft pin according to claim 1, characterized in that: The upper moving seat (501) and the lower moving seat (503) are respectively provided with an upper locking seat (504) and a lower locking seat (505) that are movably connected to each other on their opposite sides, and the spring locking member (502) is fastened in the upper locking seat (504) and the lower locking seat (505).

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