A self-lubricating automatic coupling connection structure

Abstract

This utility model discloses a self-lubricating automatic coupling connection structure, relating to the field of coupling technology. It includes a left coupling and a right coupling. A rotating shaft one is located on the left side of the left coupling, and a rotating shaft two is located inside the right side of the right coupling. This utility model features diffusion grooves on the inner surface of the coupling that communicate with the grooves. These diffusion grooves are composed of multiple interlaced spiral textures. When the balls roll, the lubricating oil is squeezed to the edge of the grooves and diffuses along the diffusion grooves. Centrifugal force propels the oil to a wider area of ​​the shaft surface. Simultaneously, an annular pad absorbs and blocks excess lubricating oil, preventing excessive leakage. The balls also expand the lubrication area. Furthermore, by setting the oil reservoir to be narrower near the grooves and wider further away, the lubricating oil can quickly flow to the grooves under pressure changes, reducing flow resistance, accelerating diffusion, and improving coating uniformity.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically to a self-lubricating automatic coupling connection structure. Background Technology

[0002] A coupling is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during the transmission of motion and power, and not to disengage under normal circumstances. Sometimes it is also used as a safety device to prevent the connected components from bearing excessive loads, thus providing overload protection. Couplings are also called couplings, and are mechanical components used to firmly connect the driving shaft and driven shaft in different mechanisms to rotate together and transmit motion and torque.

[0003] According to a self-lubricating coupling with announcement number CN215293310U, a right coupling is fixedly installed at the right end of the left coupling. The left coupling and the right coupling are respectively provided with a left shaft channel and a right shaft channel. The inner cavities of the left coupling and the right coupling are provided with oil storage channels. The top of the two oil storage channels are fixedly provided with sealed caps.

[0004] Regarding the aforementioned solutions, the method of applying lubricating oil to the shaft by rotating the balls to lubricate the contact area between the shaft and the coupling is flawed because the contact area between the balls and the shaft is small, resulting in poor lubrication and inability to achieve efficient lubrication transfer. Utility Model Content

[0005] The purpose of this invention is to provide a self-lubricating automatic coupling connection structure to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating automatic coupling connection structure, including a left coupling and a right coupling, wherein a rotating shaft one is provided on the left side of the left coupling, and a rotating shaft two is provided inside the right side of the right coupling;

[0007] Both the left and right couplings have internal oil reservoirs for storing lubricating oil. The oil reservoirs are narrower near the grooves and wider further away from the grooves to improve coating uniformity. The inner surfaces of both the left and right couplings have grooves that communicate with the oil reservoirs, and the grooves are connected to rolling balls. The inner surfaces of both the left and right couplings have diffusion grooves that communicate with the rolling balls to achieve large-area self-lubrication. The inner sides of both the left and right couplings are provided with annular pads near the openings.

[0008] Preferably, the left coupling is located to the left of the right coupling, and the left coupling and the right coupling are connected by bolts. The left coupling and the right coupling are used to firmly connect the rotating shaft one and rotating shaft two in different mechanisms so that they can rotate together.

[0009] Preferably, the diffusion groove is composed of multiple interlaced spiral textures, which apply lubricating oil to the surfaces of the first and second rotating shafts when the ball rolls.

[0010] Preferably, rectangular slots are provided on the sides of the rotating shaft one and rotating shaft two that are close to each other, and rectangular blocks that form a locking structure with the rectangular slots are fixedly connected inside the left coupling and the right coupling.

[0011] Preferably, the top ends of the left coupling and the right coupling are provided with oil injection holes that communicate with the oil storage chamber, and the top end of the oil injection hole is equipped with a sealing plug, which is used to seal the oil injection hole.

[0012] Preferably, the annular pad is made of sponge material to prevent excessive leakage of lubricating oil and to cooperate with the ball bearings to increase the lubrication area.

[0013] Preferably, the surfaces of the left and right couplings are coated with an oleophilic material, which is used to expand the coating area.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This self-lubricating automatic coupling connection structure features diffusion grooves on the inner surface of the coupling that communicate with the grooves. These diffusion grooves consist of multiple interlaced spiral textures, which allow lubricating oil to be squeezed to the edge of the grooves and diffused along the diffusion grooves when the balls roll. Centrifugal force is used to throw the oil to a wider area of ​​the shaft surface, achieving large-area self-lubrication. At the same time, an annular pad absorbs and blocks excess lubricating oil, preventing excessive leakage. The ball bearings also expand the lubrication area. Furthermore, by setting the oil reservoir to be narrower near the grooves and wider further away from them, the lubricating oil can flow quickly to the grooves under pressure changes, reducing flow resistance, accelerating diffusion, and improving coating uniformity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the left coupling and annular pad of this utility model;

[0019] Figure 4This is a three-dimensional structural diagram of the left coupling of this utility model;

[0020] Figure 5 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0021] In the diagram: 1. Left coupling; 2. Right coupling; 3. Shaft 1; 4. Shaft 2; 5. Oil reservoir; 6. Ball bearing; 7. Groove; 8. Diffuser groove; 9. Annular gasket; 10. Bolt; 11. Oil injection hole; 12. Sealing plug; 13. Rectangular slot; 14. Rectangular block. 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 Figures 1-5 This utility model provides a technical solution: a self-lubricating automatic coupling connection structure, including a left coupling 1 and a right coupling 2. The left coupling 1 is located on the left side of the right coupling 2, and the left coupling 1 and the right coupling 2 are connected by bolts 10. A rotating shaft 3 is provided on the left side of the left coupling 1, and a rotating shaft 4 is provided inside the right side of the right coupling 2. The left coupling 1 and the right coupling 2 are used to firmly connect the rotating shaft 3 and the rotating shaft 4 in different mechanisms to rotate together. A rectangular slot 13 is provided on the side of the rotating shaft 3 and the rotating shaft 4 that are close to each other. A rectangular locking block 14 that forms a locking structure with the rectangular slot 13 is fixedly connected inside the left coupling 1 and the right coupling 2.

[0024] Specifically, the first shaft 3 and the second shaft 4 are inserted into the left coupling 1 and the right coupling 2 respectively, and the first shaft 3 and the second shaft 4 are engaged with the left coupling 1 and the right coupling 2 respectively through the rectangular slot 13 and the rectangular block 14.

[0025] exist Figure 2 and Figure 5 In the middle: Both the left coupling 1 and the right coupling 2 have oil storage chambers 5 for storing lubricating oil. The oil storage chambers 5 are narrower near the groove 7 and wider away from the groove 7 to improve the uniformity of coating.

[0026] Specifically, by making the oil reservoir 5 narrower near the groove 7 and wider away from the groove 7, the lubricating oil can flow quickly to the groove 7 under pressure changes, which helps to reduce flow resistance and accelerate diffusion, thereby improving coating uniformity.

[0027] exist Figures 2-5 In the middle: the inner surfaces of the left coupling 1 and the right coupling 2 are both provided with grooves 7 that communicate with the oil storage chamber 5. The grooves 7 are connected to rolling balls 6, which are used to apply lubricating oil to the surfaces of the first shaft 3 and the second shaft 4 when the balls 6 roll.

[0028] Specifically, when the ball bearing 6 rolls, it carries the lubricating oil to the surfaces of shaft 3 and shaft 4, forming an oil film, reducing wear and extending the equipment's lifespan.

[0029] exist Figures 1-5 In the middle: the top of the left coupling 1 and the right coupling 2 are provided with oil injection holes 11 that communicate with the oil storage chamber 5. A sealing plug 12 is installed at the top of the oil injection hole 11, and the sealing plug 12 is used to seal the oil injection hole 11.

[0030] Specifically, lubricating oil is injected into the oil storage chamber 5 through the oil injection hole 11, and the oil injection hole 11 is sealed by the sealing plug 12 to prevent lubricating oil leakage.

[0031] exist Figures 2-5 In the middle: The inner surfaces of the left coupling 1 and the right coupling 2 are provided with diffusion grooves 8 that are in communication with the balls 6. The diffusion grooves 8 are composed of multiple interlaced spiral textures, which are used to achieve large-area self-lubrication.

[0032] Specifically, when the ball 6 rolls, the lubricating oil is squeezed to the edge of the groove 7 and diffused along the diffusion groove 8. Centrifugal force is used to throw the oil to a wider shaft surface area in order to achieve large-area self-lubrication.

[0033] exist Figure 2 , Figure 3 and Figure 5 In the middle: Both the left coupling 1 and the right coupling 2 have annular pads 9 near the opening on their inner sides. The annular pads 9 are made of sponge material to prevent excessive leakage of lubricating oil and to expand the lubrication area in conjunction with the balls 6.

[0034] Specifically, the ring pad 9 absorbs excess lubricating oil to prevent excessive leakage, and works with the ball bearings 6 to increase the lubrication area.

[0035] exist Figure 1 , Figure 2 and Figure 5 In the middle section: an oleophilic material coating, such as polytetrafluoroethylene, is applied to the surfaces of the left coupling 1 and the right coupling 2 to expand the coating area.

[0036] Specifically, it reduces the surface tension of the lubricating oil, promotes spontaneous spreading, and expands the coating area.

[0037] Insert shaft 3 and shaft 4 into left coupling 1 and right coupling 2 respectively, and engage them with left coupling 1 and right coupling 2 through rectangular slots 13 and rectangular blocks 14 respectively. Then, connect left coupling 1 and right coupling 2 with bolts 10. When shaft 3 and shaft 4 rotate, ball bearings 6 roll, and lubricating oil is squeezed to the edge of groove 7 and diffused along diffusion groove 8. Centrifugal force is used to throw the oil to a wider shaft surface area to achieve large-area self-lubrication. At the same time, the annular pad 9 absorbs excess lubricating oil to prevent excessive leakage and expands the lubrication area in conjunction with ball bearings 6.

[0038] Electrical equipment (including but not limited to motors, electric actuators, etc.) is safely powered by an external power source and controlled by a control box. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] 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 self-lubricating automatic coupling connection structure, comprising a left coupling (1) and a right coupling (2), wherein a rotating shaft one (3) is provided on the left side of the left coupling (1), and a rotating shaft two (4) is provided inside the right side of the right coupling (2); characterized in that: Both the left coupling (1) and the right coupling (2) have oil reservoirs (5) for storing lubricating oil. The oil reservoirs (5) are narrower near the groove (7) and wider away from the groove (7) to improve coating uniformity. The inner surfaces of both the left coupling (1) and the right coupling (2) have grooves (7) that communicate with the oil reservoirs (5). The grooves (7) are connected to rolling balls (6). The inner surfaces of both the left coupling (1) and the right coupling (2) have diffusion grooves (8) that communicate with the balls (6) to achieve large-area self-lubrication. The inner sides of both the left coupling (1) and the right coupling (2) are provided with annular pads (9) near the opening.

2. A self-lubricating shaft coupling connection structure according to claim 1, characterized in that: The left coupling (1) is located on the left side of the right coupling (2), and the left coupling (1) and the right coupling (2) are connected by bolts (10). The left coupling (1) and the right coupling (2) are used to firmly connect the rotating shaft one (3) and rotating shaft two (4) in different mechanisms to rotate together.

3. A self-lubricating shaft coupling connection structure according to claim 1, characterized in that: The diffusion groove (8) is composed of multiple interlaced spiral textures, which apply lubricating oil to the surfaces of the first shaft (3) and the second shaft (4) when the ball (6) rolls.

4. A self-lubricating shaft coupling connection structure according to claim 2, wherein: The first rotating shaft (3) and the second rotating shaft (4) are provided with rectangular slots (13) on their respective sides. The left coupling (1) and the right coupling (2) are fixedly connected to rectangular blocks (14) that form a locking structure with the rectangular slots (13).

5. The self-lubricating automatic coupling connection structure according to claim 1, characterized in that: The top ends of the left coupling (1) and the right coupling (2) are provided with oil injection holes (11) that communicate with the oil storage chamber (5). A sealing plug (12) is installed at the top end of the oil injection hole (11), and the sealing plug (12) is used to seal the oil injection hole (11).

6. The self-lubricating automatic coupling connection structure according to claim 1, characterized in that: The annular pad (9) is made of sponge material to prevent excessive leakage of lubricating oil and to cooperate with the ball bearing (6) to expand the lubrication area.

7. The self-lubricating automatic coupling connection structure according to claim 1, characterized in that: The surfaces of the left coupling (1) and the right coupling (2) are coated with an oleophilic material to expand the coating range.

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