Sealing type sleeve coupling

Abstract

The utility model relates to the technical field of couplings, in particular to a sealing type sleeve coupling which comprises a sleeve coupling body, a connecting clamping ring is installed in the middle of the interior of the sleeve coupling body, an upper end cover is installed at one end of the sleeve coupling body, and a thrust clamping ring is installed at the other end of the sleeve coupling body. O-shaped rubber sealing rings are mounted on the sides, close to the sleeve coupling, of the upper end cover and the thrust clamping ring. According to the sealing type sleeve coupling, the connecting clamping ring is installed in the middle of the interior of the sleeve coupling, the upper end cover and the thrust clamping ring are arranged at the two ends of the coupling respectively, and the O-shaped rubber sealing ring is matched for use, so that leakage of lubricating oil and invasion of external impurities and water are effectively prevented, and the transmission efficiency and the service life of a shaft system are guaranteed. The connecting snap ring and the thrust snap ring are both of a split structure, and installation and maintenance are convenient. An annular clamping groove formed in the inner side of the middle of the connecting clamping ring is matched with a protruding ring at the end of the butt joint shaft body in size, and the stability of connection and the reliability of torque transmission are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a sealed sleeve coupling. Background Art

[0002] In mechanical transmission systems, couplings are crucial components that connect two shafts and transmit torque. Their performance and reliability are directly related to the stable operation of the entire system. Especially in situations where sealing, dustproofing, moisture-proofing, or corrosion resistance are required, higher sealing performance is required for couplings.

[0003] Although traditional sleeve couplings have a simple structure and are easy to install, they often fail to meet the requirements of specific application scenarios in terms of sealing performance. This can easily lead to lubricating oil leakage, intrusion of external impurities, or water penetration, which in turn affects the efficiency and life of the shaft transmission. Utility Model Content

[0004] The purpose of the present invention is to provide a sealed sleeve coupling to solve the problem proposed in the above background technology that although the traditional sleeve coupling has a simple structure and is easy to install, it is often difficult to meet the requirements of specific application scenarios in terms of sealing performance, and is prone to lubricating oil leakage, intrusion of external impurities or penetration of water, thereby affecting the efficiency and life of the shaft transmission.

[0005] To achieve the above-mentioned purpose, the utility model provides a sealed sleeve coupling, comprising a sleeve, a connecting clamping ring installed in the middle of the interior of the sleeve, an upper end cover installed at one end of the sleeve, a thrust clamping ring installed at the other end of the sleeve, an O-type rubber sealing ring installed on the side of the upper end cover and the thrust clamping ring close to the sleeve, the connecting clamping ring and the thrust clamping ring are both split structures, and an annular clamping groove is provided on the inner side of the middle part of the connecting clamping ring.

[0006] Preferably, the upper end cover and the thrust retaining ring are both fixed to the end of the sleeve by means of hexagon socket head screws.

[0007] Preferably, a spring washer is installed on the inner side of the end of the hexagon socket head screw.

[0008] Preferably, the connecting snap ring includes two lower and upper semicircular snap rings.

[0009] Preferably, the thrust retaining ring includes two upper and lower semicircular limiting rings.

[0010] Preferably, the outer wall of the sleeve is provided with a circle of lifting grooves.

[0011] Preferably, the inner wall of the sleeve is provided with a keyway for placing a flat key, and the inner wall of the sleeve is connected to the shaft body to be docked via the flat key.

[0012] Preferably, the annular groove is adapted to the size of the convex ring at the end of the shaft body to be docked.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this sealed sleeve coupling, by installing a connecting ring in the middle of the sleeve coupling, and providing an upper end cover and a thrust ring at both ends of the coupling, combined with the use of an O-ring, it effectively prevents the leakage of lubricating oil and the intrusion of external impurities and moisture, thereby ensuring the efficiency and life of the shaft transmission.

[0015] Both the coupling and thrust collars feature a split design for easy installation and maintenance. The annular groove on the inner center of the coupling collar matches the cam on the end of the mating shaft, ensuring a secure connection and reliable torque transmission. Furthermore, the upper end cap and thrust collar are secured with hexagon socket head screws, and spring washers are installed inside the screw heads, further enhancing the connection's tightness and anti-loosening capabilities.

[0016] The lifting slots on the outer wall of the sleeve coupling facilitate its lifting and handling, while the keyways on the inner wall facilitate connection to the mating shaft. In summary, the sealed sleeve coupling of the present invention not only maintains the advantages of traditional sleeve couplings, such as simple structure and easy installation, but also achieves significant improvements in sealing performance, connection stability, and ease of use, meeting the high requirements of couplings in specific application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the connecting clamp in the utility model;

[0020] Figure 4 This is a schematic diagram of the use of the utility model;

[0021] The meaning of each number in the figure is:

[0022] 1. Sleeve coupling; 2. Connecting snap ring; 21. Annular slot; 3. Upper end cover; 4. Thrust snap ring; 5. Hexagon socket head screw; 6. Spring washer; 7. O-ring rubber seal; 8. Lifting slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a sealed sleeve coupling, such as Figures 1-4 As shown, it includes a sleeve 1, a connecting ring 2 is installed in the middle of the sleeve 1, an upper end cover 3 is installed at one end of the sleeve 1, and a thrust ring 4 is installed at the other end of the sleeve 1. An O-type rubber sealing ring 7 is installed on the side of the upper end cover 3 and the thrust ring 4 close to the sleeve 1. The connecting ring 2 and the thrust ring 4 are both split structures, and an annular groove 21 is provided on the inner side of the middle part of the connecting ring 2. Through the carefully designed structural combination, the sealing performance of the coupling is significantly improved. Specifically, the connecting ring 2 installed in the middle of the sleeve 1, and the upper end cover 3 and the thrust ring 4 respectively provided at both ends, together constitute a reliable sealing system. In this system, the addition of the O-type rubber sealing ring 7 effectively prevents the leakage of lubricating oil and the intrusion of external impurities and moisture, thereby ensuring the efficient and stable operation of the shaft transmission.

[0025] The split design of the coupling ring 2 and thrust ring 4 not only facilitates installation and maintenance but also enhances the coupling's adaptability and flexibility. The annular groove 21, located on the inner side of the coupling ring 2, tightly mates with the cam at the end of the mating shaft, ensuring the coupling's stability and reliability during torque transmission.

[0026] To sum up, the sealed sleeve coupling provided by the utility model achieves a comprehensive improvement in the sealing performance, connection stability and ease of use of the coupling through innovative structural design, meets the high requirements of the coupling in specific application scenarios, and provides a strong guarantee for the stable operation of the mechanical transmission system.

[0027] In this embodiment, the upper end cap 3 and the thrust snap ring 4 are both fixed to the end of the sleeve 1 via hexagon socket head cap screws 5. Both the upper end cap 3 and the thrust snap ring 4 are securely fastened to the end of the sleeve 1 via hexagon socket head cap screws 5. This fixing method not only ensures the stability and reliability of the upper end cap and the thrust snap ring during operation of the coupling, but also facilitates installation and removal, improving maintenance efficiency.

[0028] Specifically, a spring washer 6 is installed inside the end of the hexagon socket head screw 5. The presence of the spring washer effectively prevents the screw from loosening under vibration or external force, further enhancing the connection tightness between the upper end cover and thrust retaining ring and the sleeve coupling, ensuring the overall stability and safety of the coupling.

[0029] Furthermore, the coupling snap ring 2 includes two semicircular snap rings, one on the lower and one on the upper. This split structural design makes the coupling snap ring more convenient to install and remove, and the tightness and position of the snap ring can be adjusted according to actual needs, thereby improving the adaptability and flexibility of the coupling.

[0030] Furthermore, the thrust retaining ring 4 includes two upper and lower semicircular limiting rings. This design is also convenient for installation and removal, and can effectively limit the movement of the shaft body in the coupling, ensuring the stability and reliability of the coupling during torque transmission.

[0031] Furthermore, the outer wall of the sleeve 1 is provided with a circle of lifting slots 8. The presence of the lifting slots makes the coupling more convenient and safer during the lifting and transportation process, improves work efficiency, and reduces the risk of damage caused by improper operation.

[0032] Furthermore, the inner wall of the sleeve 1 is provided with a keyway for accommodating a flat key, and the inner wall of the sleeve 1 is connected to the shaft to be connected via the flat key. This connection method is not only simple and reliable, but also can effectively transmit torque, ensuring the stable operation of the coupling in the mechanical transmission system.

[0033] Furthermore, the annular groove 21 is adapted to the size of the convex ring at the end of the shaft body to be connected. This design ensures a tight fit between the connecting ring and the shaft body, improves the stability and reliability of the coupling during torque transmission, and reduces the risk of wear and damage caused by improper fit.

[0034] When in use, the sealed sleeve coupling of this utility model consists of a sleeve 1 as the main body. A connecting ring 2 is installed in the center of the sleeve, and an upper end cap 3 and a thrust ring 4 are installed at each end, forming a complete sealing system. In this process, an O-ring 7 is cleverly installed on the side of the upper end cap 3 and thrust ring 4 near the sleeve 1, effectively preventing lubricant leakage and the intrusion of external impurities and moisture, providing a strong guarantee for the efficient and stable operation of the shaft transmission.

[0035] Secondly, the split design of the coupling snap ring 2 and thrust snap ring 4 facilitates installation and removal, while also allowing the snap rings' tightness and position to be adjusted as needed. This design not only enhances the coupling's adaptability and flexibility, but also ensures a tight fit between the annular groove 21 on the inner center of the coupling snap ring 2 and the cam on the end of the mating shaft, thereby enhancing the coupling's stability and reliability during torque transmission.

[0036] Furthermore, both the upper end cap 3 and the thrust retaining ring 4 are securely fastened to the end of the sleeve 1 via hexagon socket head cap screws 5. This securing method not only ensures the stability and reliability of the upper end cap and thrust retaining ring during operation of the coupling, but also facilitates installation and removal, improving maintenance efficiency. Furthermore, a spring washer 6 is mounted on the inner side of the end of the hexagon socket head cap screw 5, effectively preventing the screw from loosening due to vibration or external forces, further enhancing the tightness of the connection.

[0037] During operation, the inner wall of the sleeve 1 is connected to the shaft to be connected via a flat key. This connection method is simple and reliable, and can effectively transmit torque. At the same time, the lifting slot 8 provided on the outer wall of the sleeve 1 makes the coupling more convenient and safer during lifting and transportation.

[0038] To sum up, the sealed sleeve coupling provided by the utility model achieves a comprehensive improvement in the sealing performance, connection stability and ease of use of the coupling through a carefully designed structural combination and innovative working principle, meets the high requirements of the coupling in specific application scenarios, and provides a strong guarantee for the stable operation of the mechanical transmission system.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed sleeve coupling, comprising a sleeve (1), characterized in that: A connecting snap ring (2) is installed in the middle of the sleeve (1), an upper end cover (3) is installed at one end of the sleeve (1), and a thrust snap ring (4) is installed at the other end of the sleeve (1). An O-type rubber sealing ring (7) is installed on the side of the upper end cover (3) and the thrust snap ring (4) close to the sleeve (1). The connecting snap ring (2) and the thrust snap ring (4) are both split structures, and an annular snap groove (21) is provided on the inner side of the middle of the connecting snap ring (2).

2. The sealed sleeve coupling according to claim 1, characterized in that: The upper end cover (3) and the thrust retaining ring (4) are both fixed to the end of the sleeve (1) via hexagon socket head screws (5).

3. The sealed sleeve coupling according to claim 2, characterized in that: A spring washer (6) is installed on the inner side of the end of the hexagon socket head screw (5).

4. The sealed sleeve coupling according to claim 1, characterized in that: The connecting snap ring (2) comprises two lower and upper semicircular snap rings.

5. The sealed sleeve coupling according to claim 1, characterized in that: The thrust clamping ring (4) comprises two upper and lower semicircular limiting rings.

6. The sealed sleeve coupling according to claim 1, characterized in that: The outer wall of the sleeve (1) is provided with a circle of lifting slots (8).

7. The sealed sleeve coupling according to claim 1, characterized in that: The inner wall of the sleeve (1) is provided with a keyway for accommodating a flat key, and the inner wall of the sleeve (1) is connected to a shaft body to be butted against via the flat key.

8. The sealed sleeve coupling according to claim 1, characterized in that: The annular groove (21) is adapted to the size of the convex ring at the end of the shaft body to be docked.

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