A roller chain link structure

Abstract

The utility model belongs to the field of roller chains, and specifically relates to a roller chain link structure, including a chain plate, the outer side of the chain plate contacts a roller bearing, the side of the chain plate away from the roller bearing is slidably connected to a connecting plate, the inside of the chain plate is slidably connected to a connecting nail, a limiting mechanism is provided on the connecting nail, and a plurality of evenly distributed limiting strips are fixedly connected to the outer side of the connecting nail. The utility model adds structures such as a limiting frame, a guide rod and a limiting column inside the connecting nail. When the chain is connected, after the connecting nail is passed through the inside of the chain plate, the connecting nail can be limited by the limiting frame, thereby avoiding the use of elastic washers. When disassembling, it is only necessary to store the limiting frame into the inside of the connecting nail, and the limiting frame can be further limited by the limiting column, so that the limiting frame can be more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of roller chains, in particular to a roller chain linking structure. Background Art

[0002] According to the roller chain proposed in patent authorization announcement number: CN107606057A, the present invention provides a roller chain that alleviates the impact load caused by the collision with the sprocket through a simple structure, while achieving a long life of the roller and suppressing the interference between the sprocket and the inner plate. Specifically, it is a roller chain with rollers, the rollers are formed in a cylindrical shape that is continuously connected in the axial direction and the circumferential direction of the rollers, and the rollers are bent so that the inner diameter of the two ends of the rollers is different from the inner diameter of the central part of the rollers, and the outer diameter of the two ends of the rollers is different from the outer diameter of the central part of the rollers. When contacting the sprocket, it is sandwiched between the bushing and the sprocket and elastically deformed.

[0003] However, the roller chain in the prior art is connected by connecting the chain through a connecting nail and an elastic washer, and when disassembling and connecting, a special tool is needed to disassemble the elastic washer, which is troublesome. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a roller chain linking structure, which solves the problem that the roller chain connection structure is inconvenient to disassemble and assemble.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller chain link structure, comprising a chain plate, the outer side of the chain plate contacts with a roller bearing, the side of the chain plate away from the roller bearing is slidably connected with a connecting plate, the inside of the chain plate is slidably connected with a connecting nail, a limiting mechanism is arranged on the connecting nail, the outer side of the connecting nail is fixedly connected with a plurality of evenly distributed limiting bars, the side of the connecting plate close to the chain plate is fixedly connected with a reinforcing ring, a limiting groove is provided inside the inner ring of the roller bearing, and the limiting groove is slidably connected to the limiting bar.

[0006] Preferably, the connecting nail is slidably connected to the roller bearing, and the connecting nail is slidably connected to the connecting plate, and the connecting nail can connect the connecting plate and the chain plate.

[0007] Preferably, the reinforcement ring is movably connected to the chain plate, and the reinforcement ring is slidably connected to the connecting nail, and the reinforcement ring can increase the connection strength between the two chain plates.

[0008] Preferably, the limit mechanism includes a limit frame, the connecting nail is internally slidably connected to two symmetrically distributed limit frames, the connecting nail is internally fixedly connected to a guide rod, a spring 1 is arranged on the outer side of the guide rod, the limit frame is internally slidably connected to a slide rod, one end of the slide rod close to the guide rod is fixedly connected to a limit column, a spring 2 is arranged on the outer side of the slide rod, the end of the slide rod away from the limit column is fixedly connected to a handle, the limit column is slidably connected to the connecting nail, the limit column is slidably connected to the limit frame, and the limit column can limit the limit frame.

[0009] Preferably, one end of the spring one is fixedly connected to the connecting nail, and the other end of the spring one is fixedly connected to the limit frame, and the spring one can drive the limit frame to automatically reset through elastic force.

[0010] Preferably, the limiting frame is slidably connected to the connecting plate, the limiting frame is slidably connected to the guide rod, the handle is in contact with the limiting frame, the handle is slidably connected to the connecting nail, and the limiting frame can limit the connecting nail.

[0011] Preferably, one end of the second spring is fixedly connected to the limiting frame, and the other end of the second spring is fixedly connected to the limiting column, and the second spring can drive the limiting column to automatically reset through elastic force.

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

[0013] 1. The utility model adds structures such as a limit frame, a guide rod and a limit column inside the connecting nail. When the chain is connected, after the connecting nail is passed through the inside of the chain plate, the connecting nail can be limited by the limit frame, thereby avoiding the use of elastic washers. When disassembling, it is only necessary to store the limit frame into the inside of the connecting nail, and the limit frame can be further limited by the limit column, which can make the limit frame more stable.

[0014] 2. The utility model adds a limit strip on the outside of the connecting nail and a reinforcing ring on the connecting plate. The reinforcing ring on the connecting plate can increase the connection strength between the connecting plate and the chain plate, thereby enhancing the tensile strength of the chain. The inner ring of the roller bearing can be limited by the limit strip, thereby preventing the inner ring of the roller bearing from rotating and causing wear on the inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A three-dimensional enlarged view of the connecting pin;

[0017] Figure 3 For the utility model Figure 1 A magnified three-dimensional view of a roller bearing;

[0018] Figure 4 For the utility model Figure 1 A top sectional view of

[0019] Figure 5 For the utility model Figure 4 A-section structure enlarged view.

[0020] In the figure: 1. chain plate; 2. roller bearing; 3. connecting plate; 4. connecting nail; 5. limiting mechanism; 6. limiting strip; 7. limiting groove; 8. reinforcing ring; 51. limiting frame; 52. guide rod; 53. spring 1; 54. sliding rod; 55. limiting column; 56. spring 2; 57. handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A roller chain link structure comprises a chain plate 1, the outer side of the chain plate 1 contacts with a roller bearing 2, a connecting plate 3 is slidably connected to the side of the chain plate 1 away from the roller bearing 2, a connecting nail 4 is slidably connected to the inside of the chain plate 1, a limiting mechanism 5 is arranged on the connecting nail 4, a plurality of evenly distributed limiting bars 6 are fixedly connected to the outer side of the connecting nail 4, a reinforcing ring 8 is fixedly connected to the side of the connecting plate 3 close to the chain plate 1, a limiting groove 7 is arranged inside the inner ring of the roller bearing 2, and the limiting groove 7 is slidably connected to the limiting bar 6.

[0023] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 The connecting nail 4 is slidingly connected to the roller bearing 2, the connecting nail 4 is slidingly connected to the connecting plate 3, the connecting nail 4 can connect the connecting plate 3 and the chain plate 1, the reinforcing ring 8 is movably connected to the chain plate 1, the reinforcing ring 8 is slidingly connected to the connecting nail 4, and the reinforcing ring 8 can increase the connection strength between the two chain plates 1.

[0024] See also Figure 1 , Figure 4 , Figure 5The limiting mechanism 5 includes a limiting frame 51, and the connecting nail 4 is internally slidably connected to two symmetrically distributed limiting frames 51. The connecting nail 4 is internally fixedly connected to a guide rod 52, and a spring 1 53 is arranged on the outer side of the guide rod 52. The limiting frame 51 is internally slidably connected to a slide rod 54, and one end of the slide rod 54 close to the guide rod 52 is fixedly connected to a limiting column 55, and a spring 2 56 is arranged on the outer side of the slide rod 54. The end of the slide rod 54 away from the limiting column 55 is fixedly connected to a handle 57. The limiting column 55 is slidably connected to the connecting nail 4, and the limiting column 55 is slidably connected to the limiting frame 51. The limiting column 55 can be used to move the limiting frame 51. Limiting, one end of spring 1 53 is fixedly connected to the connecting nail 4, and the other end of spring 1 53 is fixedly connected to the limiting frame 51. Spring 1 53 can drive the limiting frame 51 to automatically reset through elastic force. The limiting frame 51 is slidably connected to the connecting plate 3, and the limiting frame 51 is slidably connected to the guide rod 52. The handle 57 contacts the limiting frame 51, and the handle 57 is slidably connected to the connecting nail 4. The limiting frame 51 can limit the connecting nail 4. One end of spring 2 56 is fixedly connected to the limiting frame 51, and the other end of spring 2 56 is fixedly connected to the limiting column 55. Spring 2 56 can drive the limiting column 55 to automatically reset through elastic force.

[0025] The specific implementation process of the utility model is as follows: when disassembly is required, the handle 57 is pulled in the direction of the connection nail 4, and the handle 57 drives the limit column 55 to move through the slide rod 54, and compresses the spring 2 56. When the limit column 55 slides into the interior of the limit frame 51, the limit on the limit frame 51 can be released, and then the limit frame 51 is driven by the handle 57 to move into the interior of the connection nail 4, and the spring 1 53 is compressed. When the limit frame 51 completely slides into the interior of the connection nail 4, the connection nail 4 can be slid out from the roller bearing 2 and the chain plate 1, so that the chain can be conveniently disassembled and assembled.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller chain link structure, comprising a chain plate (1), characterized in that: The outer side of the chain plate (1) contacts with a roller bearing (2); a connecting plate (3) is slidably connected to the side of the chain plate (1) away from the roller bearing (2); a connecting nail (4) is slidably connected to the inside of the chain plate (1); a limiting mechanism (5) is provided on the connecting nail (4); a plurality of evenly distributed limiting strips (6) are fixedly connected to the outer side of the connecting nail (4); a reinforcing ring (8) is fixedly connected to the side of the connecting plate (3) close to the chain plate (1); a limiting groove (7) is provided inside the inner ring of the roller bearing (2); and the limiting groove (7) is slidably connected to the limiting strip (6).

2. A roller chain link structure according to claim 1, characterized in that: The connecting nail (4) is slidably connected to the roller bearing (2), and the connecting nail (4) is slidably connected to the connecting plate (3).

3. A roller chain link structure according to claim 1, characterized in that: The reinforcement ring (8) is movably connected to the chain plate (1), and the reinforcement ring (8) is slidably connected to the connecting nail (4).

4. A roller chain link structure according to claim 1, characterized in that: The limiting mechanism (5) comprises a limiting frame (51), the interior of the connecting nail (4) is slidably connected to two symmetrically distributed limiting frames (51), the interior of the connecting nail (4) is fixedly connected to a guide rod (52), the outer side of the guide rod (52) is provided with a spring 1 (53), the interior of the limiting frame (51) is slidably connected to a slide rod (54), one end of the slide rod (54) close to the guide rod (52) is fixedly connected to a limiting column (55), the outer side of the slide rod (54) is provided with a spring 2 (56), the end of the slide rod (54) away from the limiting column (55) is fixedly connected to a handle (57), the limiting column (55) is slidably connected to the connecting nail (4), and the limiting column (55) is slidably connected to the limiting frame (51).

5. A roller chain link structure according to claim 4, characterized in that: One end of the spring one (53) is fixedly connected to the connecting nail (4), and the other end of the spring one (53) is fixedly connected to the limiting frame (51).

6. A roller chain link structure according to claim 4, characterized in that: The limiting frame (51) is slidably connected to the connecting plate (3), the limiting frame (51) is slidably connected to the guide rod (52), the handle (57) is in contact with the limiting frame (51), and the handle (57) is slidably connected to the connecting nail (4).

7. A roller chain link structure according to claim 4, characterized in that: One end of the second spring (56) is fixedly connected to the limiting frame (51), and the other end of the second spring (56) is fixedly connected to the limiting column (55).

Images