Pin shaft connecting piece

Abstract

The utility model discloses a pin shaft connecting piece which comprises a connecting piece body, pin shafts matched with the connecting piece body are arranged on the two sides of the interior of the connecting piece body in a penetrating mode, an oil cavity is formed in the middle of the interior of each pin shaft, and five sets of cotton plates extending to the exterior of the oil cavity are arranged in the oil cavity. Five groups of rotating rollers attached to the cotton plate are arranged outside the pin shaft, the rotating rollers extend to the outside of the pin shaft, and limiting sleeving assemblies are arranged at the top and the bottom of the outer side of the pin shaft; through the structural design of the rotating roller, rolling work outside the pin shaft can be achieved so as to reduce the one-time abrasion phenomenon when the pin shaft and the connecting piece are used, meanwhile, lubricating work on the outer side of the rotating roller can be achieved through mutual cooperation of the oil cavity and the cotton plate, the abrasion phenomenon when the outer side of the pin shaft and the connecting piece are used in cooperation can be further reduced through lubricating, and the service life of the pin shaft is prolonged. And protection work on the exterior of the pin shaft can be achieved through rolling of the rotating roller and lubrication of the cotton plate, and the later-period service life of the pin shaft is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shafts, in particular to a pin shaft connecting piece. Background Art

[0002] The pin is a type of standardized fastener that can be used for static fixed connection or relative movement with the connected parts. It is mainly used at the hinge of two parts to form a hinge connection. The pin is usually locked with a cotter pin. It works reliably and is easy to disassemble. Therefore, it is necessary to design a pin connector.

[0003] When the existing pin is used with the connecting piece, the connection is a clearance fit, and shaking will inevitably occur during use, causing friction expansion between the pin and the connecting piece, which can easily cause wear between the pin and the connecting piece, affecting the service life of the pin in the later stage. Utility Model Content

[0004] The utility model aims to provide a pin connecting piece, which is convenient for reducing the wear and collision phenomenon of the pin and the connecting piece when used together, and at the same time prolonging the service life of the pin and the connecting piece in the later stage.

[0005] In order to achieve the above-mentioned purpose, a pin shaft connection is provided, including: a connection piece, both sides of the interior of the connection piece are penetrated by pin shafts matching with the connection piece, an oil chamber is opened at the middle position of the interior of the pin shaft, the interior of the oil chamber is provided with five groups of cotton boards extending to the outside thereof, the exterior of the pin shaft is provided with five groups of rotating rollers fitting with the cotton boards, and the rotating rollers extend to the outside of the pin shaft, and the top and bottom of the outer side of the pin shaft are provided with limit sleeve components, which are convenient for reducing the wear and collision of the pin shaft and the connection piece when used together, so as to increase the service life of the pin shaft and the connection piece in the later stage.

[0006] According to the pin shaft connection, the limit sleeve assembly includes a sealing plug, an oil inlet, an internal thread groove, a thread block and a limit cover cap, the internal thread groove is provided with two groups, the two groups of internal thread grooves are provided at the middle position between the top and the bottom of the pin shaft, the interior of the two groups of internal thread grooves are both threaded with thread blocks extending to the outside thereof, the top of one group of thread blocks and the bottom of the other group of thread blocks are both provided with a limit cover cap sleeved to the outside of the pin shaft, an oil inlet connected to the inside of the oil chamber is provided at the middle position of the bottom of the one group of internal thread grooves, the inside of the oil inlet is provided with a sealing plug matched with the oil inlet, and the sealing plug is connected to the bottom of the one group of thread blocks, so as to facilitate the subsequent injection and sealing of lubricating oil, and facilitate the limit work of the pin shaft (2) and the connector plug-in, thereby improving the stability of the subsequent plug-in connection.

[0007] According to the described pin connection member, five groups of arc grooves are provided on the outer side of the pin, and the five groups of arc grooves cooperate with the rotating rollers to facilitate the storage and installation of the rotating rollers.

[0008] According to the described pin connection member, rotating shafts are provided at the top and bottom of the five rotating rollers, and the rotating shafts are connected to the arc grooves provided on the outside of the pin to facilitate the rotational installation of the rotating rollers.

[0009] According to the described pin connection member, through holes are provided on both sides inside the connection member, and the through holes cooperate with the pin to facilitate the insertion of the pin.

[0010] According to the described pin connection member, the cotton board is woven from polypropylene non-woven fabric, which facilitates the adsorption and storage of the lubricating oil inside the oil cavity and facilitates the later lubrication coating on the outside of the rotating roller.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the structural design of the rotating roller, the rolling work outside the pin can be realized to reduce the primary wear phenomenon when the pin and the connection member are used. At the same time, through the mutual cooperation of the oil cavity and the cotton board, the lubrication work on the outside of the rotating roller can also be realized. Through lubrication, the wear phenomenon of the outside of the pin when cooperating with the connection member can be further reduced. Moreover, through the rolling of the rotating roller and the lubrication of the cotton board, the protection work on the outside of the pin can also be realized, effectively extending the later service life of the pin;

[0012] Finally, through the mutual cooperation of the limit cap, the threaded block, the internal thread groove, the pin, the oil inlet and the sealing plug, the addition, covering and sealing of the lubricating oil inside the oil cavity can be realized, and the limiting work on the outside of the pin can also be realized to facilitate the insertion connection and limiting operation of the pin and the connection member, reducing the possibility of the pin falling off from the connection member later. Through the structural design of this component, the flexibility and practicality of the pin in later use can be realized.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further illustrates the present utility model with reference to the drawings and embodiments;

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the connection member of a pin connection member of the present utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the pin of a pin connection member of the present utility model;

[0017] Figure 3 Schematic three-dimensional structure diagram of a limiting cap of a pin connection member of the present utility model;

[0018] Figure 4 Front view cross-sectional view of a pin connection member of the present utility model;

[0019] Figure 5 Top view cross-sectional view of a pin of a pin connection member of the present utility model;

[0020] Figure 6 A pin connection member of the present utility model Figure 4 Enlarged view of part A.

[0021] In the figure: 1, connection member; 2, pin; 3, rotating roller; 4, sealing plug; 5, oil cavity; 6, cotton board; 7, oil inlet; 8, internal thread groove; 9, thread block; 10, limiting cap. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-6 , the embodiments of the present utility model provide a technical solution: a pin connection member, including: a connection member 1, pins 2 that penetrate through both sides inside the connection member 1 and are matched with it, an oil cavity 5 is opened at the middle position inside the pin 2, five groups of cotton boards 6 that extend to the outside of the oil cavity 5 are arranged inside the oil cavity 5, five groups of rotating rollers 3 that are attached to the cotton boards 6 are arranged outside the pin 2, and the rotating rollers 3 extend to the outside of the pin 2, and limiting sleeve components are arranged at the top and bottom of the outside of the pin 2.

[0024] The limiting sleeve components include a sealing plug 4, an oil inlet 7, internal thread grooves 8, thread blocks 9 and a limiting cap 10. Two groups of internal thread grooves 8 are opened at the middle positions of the top and bottom of the pin 2. Thread blocks 9 that extend to the outside of the two groups of internal thread grooves 8 are threadedly arranged inside the two groups of internal thread grooves 8. Limiting caps 10 that are sleeved on the outside of the pin 2 are arranged at the top of one group of thread blocks 9 and the bottom of the other group of thread blocks 9. An oil inlet 7 that is communicated with the inside of the oil cavity 5 is opened at the middle position of the inner bottom of one group of internal thread grooves 8. A sealing plug 4 that is matched with it is arranged inside the oil inlet 7, and the sealing plug 4 is connected to the bottom of one group of thread blocks 9.

[0025] Five groups of arc-shaped grooves are provided on the outer side of the pin shaft 2, and the five groups of arc-shaped grooves cooperate with the rotating roller 3.

[0026] Rotating shafts are provided at the top and bottom of the five groups of rotating rollers 3, and the rotating shafts are connected to the arc-shaped grooves provided on the outside of the pin shaft 2.

[0027] Through holes are provided on both sides inside the connecting piece 1, and the through holes cooperate with the pin shaft 2.

[0028] The cotton board 6 is woven from polypropylene non-woven fabric.

[0029] Working principle: During use, the operator can first rotate a group of limit caps 10 to drive the threaded block 9 to rotate and remove inside the internal thread groove 8, and then the limit cap 10 can be separated from the outside of the pin shaft 2 to release the limit on it. Then, the pin shaft 2 and the components above it are inserted into the inside of the connecting piece 1 to achieve their cooperation with the connecting piece 1. After the insertion is completed, by driving the threaded block 9 to move out by the limit cap 10, the sealing plug 4 can also be separated from the inside of the oil inlet 7 to release the sealing of the oil inlet 7. Then, lubricating oil is poured into the inside of the oil cavity 5 through the oil inlet 7 provided at the inner bottom of the internal thread groove 8. Then, the cotton board 6 adsorbs the lubricating oil inside the oil cavity 5. Finally, through the mutual fitting of the cotton board 6 and the rotating roller 3, when friction occurs between the connecting piece 1 and the pin shaft 2 later, the rotating roller 3 can rotate. By the rotation of the rotating roller 3, the wear phenomenon can be reduced. At the same time, through the rotation of the rotating roller 3, the lubricating oil inside the cotton board 6 can also be coated on the outside of the rotating roller 3. The lubricating oil on the outside of the rotating roller 3 can further reduce the wear phenomenon, effectively extending the service life of the pin shaft 2 later and reducing the wear phenomenon.

[0030] Finally, through the reverse operation of the limit cap 10 and the components above it, the sealing of the oil inlet 7 can be achieved, reducing the leakage of the lubricating oil inside the oil cavity 5 later, and the limit work after the insertion of the pin shaft 2 and the connecting piece 1 can also be achieved, improving the stability of the later insertion.

[0031] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field to which it belongs, various changes can also be made without departing from the purpose of the present invention.

Claims

1. A pin shaft connecting member, comprising: Connecting piece (1), characterized in that pin shafts (2) matching with the connecting piece (1) are penetrated through both sides inside the connecting piece (1), an oil cavity (5) is opened at the middle position inside the pin shaft (2), five groups of cotton boards (6) extending to the outside of the oil cavity (5) are arranged inside the oil cavity (5), five groups of rotating rollers (3) attached to the cotton boards (6) are arranged outside the pin shaft (2), and the rotating rollers (3) extend to the outside of the pin shaft (2). Limiting and sleeving assemblies are arranged at the top and bottom on the outer side of the pin shaft (2).

2. The pin connector according to claim 1, characterized in that: The limiting and sleeving assembly includes a sealing plug (4), an oil inlet (7), an internal thread groove (8), a thread block (9) and a limiting cap (10). Two groups of internal thread grooves (8) are opened, and the two groups of internal thread grooves (8) are opened at the middle positions of the top and bottom of the pin shaft (2). Thread blocks (9) extending to the outside of the internal thread grooves (8) are threadedly arranged inside the two groups of internal thread grooves (8). Limiting caps (10) sleeved on the outside of the pin shaft (2) are arranged at the top of one group of thread blocks (9) and the bottom of the other group of thread blocks (9). An oil inlet (7) communicating with the inside of the oil cavity (5) is opened at the middle position of the inner bottom of one group of internal thread grooves (8). A sealing plug (4) matching with the oil inlet (7) is arranged inside the oil inlet (7), and the sealing plug (4) is connected to the bottom of one group of thread blocks (9).

3. The pin connector according to claim 1, characterized in that: Five arc-shaped grooves are opened on the outer side of the pin shaft (2), and the five arc-shaped grooves are matched with the rotating rollers (3).

4. The pin connecting member according to claim 1, characterized in that: Shafts are arranged at the top and bottom of the five groups of rotating rollers (3), and the shafts are connected to the arc-shaped grooves opened on the outside of the pin shaft (2).

5. A pin connection member according to claim 1, characterized in that: Through holes are opened on both sides inside the connecting piece (1), and the through holes are matched with the pin shafts (2).

6. The pin connector according to claim 1, characterized in that: The cotton board (6) is woven from polypropylene non-woven fabric material.

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