Roller convenient to replace for express sorting machine

Abstract

The utility model discloses an express sorting machine roller convenient to replace, which comprises a roller body, fixing components matched with bearing inner rings are arranged at two ends of the roller body, each fixing component comprises at least three arc-shaped fixing pieces matched with the bearing inner rings and arranged at equal intervals and positioning blocks arranged on the inner sides of the arc-shaped fixing pieces, and the positioning blocks are arranged on the inner sides of the arc-shaped fixing pieces. The arc-shaped fixing pieces are mutually enclosed to form a columnar structure matched with the inner wall of the bearing inner ring, the arc-shaped fixing pieces and the positioning blocks can synchronously and radially move, the inner sides of the positioning blocks are mutually enclosed to form a conical enclosed cavity, and a conical column which is coaxially matched with the enclosed cavity and can axially move is arranged in the enclosed cavity. The device has the characteristics that the roller can be quickly disassembled, assembled and replaced, the operation is simple and convenient, and the like.

Description

Technical Field

[0001] This utility model relates to a roller for a courier sorting machine, specifically a roller for a courier sorting machine that is easy to replace. Background Technology

[0002] In practical applications, rollers are used to assist in rolling and are commonly used in various conveying equipment (such as express sorting machines). They are components that have no power of their own and rely on external force to roll. They are usually used for the transfer, conveying or sorting of items.

[0003] Chinese Patent CN216763098U discloses a roller conveyor, including a conveyor frame, a drive roller and a drive device, and further includes: an adjusting frame, on which a gravity sensor is provided; and a locking mechanism adapted to switch the adjusting frame between a conveying state and a sorting state.

[0004] In actual use, each roller is connected to the conveyor frame on both sides by bearings. If a roller is corroded, cracked, or damaged during use, it is difficult to remove the damaged roller individually. Instead, the rollers must be removed one by one starting from the outermost edge. This makes it inconvenient to disassemble and replace individual rollers. Utility Model Content

[0005] The purpose of this utility model is to provide a roller for a courier sorting machine that is easy to replace, which solves the problems of inconvenience in disassembling and replacing rollers in the prior art.

[0006] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a replaceable roller for a courier sorting machine, comprising a cylinder body, with fixing components at both ends of the roller that cooperate with the inner ring of a bearing. The fixing components include at least three arc-shaped fixing members that cooperate with the inner ring of the bearing and are equally spaced, and positioning blocks located inside the arc-shaped fixing members. Each arc-shaped fixing member surrounds each other to form a columnar structure that cooperates with the inner wall of the inner ring of the bearing. Each arc-shaped fixing member and each positioning block can move radially synchronously. The inner sides of each positioning block surround each other to form a conical enclosing cavity. A conical column that is coaxially cooperates with the enclosing cavity and can move axially is provided inside the enclosing cavity.

[0007] As a further preferred technical solution of this utility model, a threaded post is provided at the center of the tapered column and is threadedly connected to the tapered column. One end of the threaded post is coaxial with the cylinder and rotatably connected, and the other end of the threaded post protrudes beyond the end face of the tapered column.

[0008] As a further preferred technical solution of this utility model, the outer wall of the tapered column is provided with a T-shaped slider that corresponds to each positioning block and is axially arranged, and the inner side of the positioning block is provided with a T-shaped groove that cooperates with the T-shaped slider.

[0009] As a further preferred technical solution of this utility model; one end of the threaded column extends into the cylinder and is fitted with a rotating bearing, the cylinder is provided with a fixing block connected to the rotating bearing, and the other end of the threaded column is provided with a driving block.

[0010] As a further preferred technical solution of this utility model, a guide slider is provided at one end of the positioning block near the end face of the cylinder, and a strip groove is provided on the end face of the cylinder that cooperates with the guide slider and is radially arranged.

[0011] As a further preferred technical solution of this utility model, a return spring is provided at one end of the guide slider facing the outer wall of the cylinder, which is connected to the strip groove.

[0012] Therefore, this utility model has the characteristics of quick disassembly and replacement of rollers, and simple and convenient operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the connection structure between the fixed components and the cylinder;

[0015] Figure 3 yes Figure 1 A schematic diagram of the connection structure between the arc-shaped fixing component and the positioning block. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] like Figure 1-3As shown, a replaceable roller for a courier sorting machine includes a cylinder body 1. Both ends of the roller 1 are provided with fixing components a that mate with the inner ring of a bearing. Each fixing component a includes at least three equally spaced arc-shaped fixing members 21 that mate with the inner ring of the bearing, and positioning blocks 22 located inside the arc-shaped fixing members 21. The arc-shaped fixing members 21 surround each other to form a columnar structure that mates with the inner wall of the inner ring of the bearing. The columnar structure formed by the surrounding arc-shaped fixing members 21 can mate with the inner wall of the inner ring of the bearing. The outer wall of the fixing component is arc-shaped, allowing the bearing to be sleeved on the outer wall of the arc-shaped fixing component 21, forming a connection between the bearing and the fixing assembly a, thereby fixing the roller. Each arc-shaped fixing component 21 and each positioning block 22 can move radially synchronously. The inner sides of each positioning block 22 enclose each other to form a conical enclosure cavity 221. A conical column 23 is provided in the enclosure cavity 221, which is coaxially fitted with the enclosure cavity 221 and can move axially. The positioning block 22 is connected to the inner side of the arc-shaped fixing component 21, and the outer wall of the conical column 23 is connected to the inner side of the arc-shaped fixing component 21. The inner walls of the enclosure cavities 221 enclosing the inner sides of each positioning block 22 fit together, so that when the conical column 23 moves axially, it can push each positioning block 22 to move radially through the conical structure, thereby driving the positioning blocks 22 to move radially synchronously. Then, when disassembling the roller, the conical column 23 can be driven to move axially, so that the positioning blocks 22 and the arc-shaped fixing member 21 move towards the enclosure center, and the arc-shaped fixing member 21 separates from the inner ring of the bearing. The roller can then move axially so that the fixing component a at one end of the roller is radially disengaged from the bearing on one side, so that a single roller can be disassembled directly and quickly. When installing the roller, the fixing component a at one end of the roller can be placed into the inner ring of the bearing, and then the fixing component a at the other end of the roller can be placed into the inner ring of the bearing. Then, the conical column 23 is driven to move axially in the opposite direction, so that the positioning blocks 22 and the arc-shaped fixing member 21 expand circumferentially until the outer wall of the arc-shaped fixing member 21 abuts and is fastened to the inner ring of the bearing, thereby realizing the rapid installation of a single roller, effectively improving the efficiency of disassembly, assembly and replacement of rollers, and the operation is simple and convenient.

[0018] like Figure 2-3As shown, a threaded post 24 is provided at the center of the tapered post 23, threadedly connected to the tapered post 23. One end of the threaded post 24 is coaxial with and rotatably connected to the cylinder 1, and the other end of the threaded post 24 protrudes beyond the end face of the tapered post 23. One end of the threaded post 24 extends into the cylinder 1 and is fitted with a rotating bearing 241. A fixing block 242 connected to the rotating bearing 241 is provided inside the cylinder 1. The threaded post 24 is located at the center of the tapered post 23 and communicates with the cylinder 1, so as to axially fix the tapered post 23 through the thread, and axially limit the positioning block 22 and the annular fixing member 21 through the tapered post 23 to prevent axial loosening. The setting of the rotating bearing 241 ensures the stable rotation of the threaded post 24. At the same time, the connection between the fixing block 242 and the cylinder 1 and the threaded post 24 achieves a rotatable connection with the threaded post 24, ensuring the stability of the threaded post 24 during rotation. A driving block 243 is provided at the other end of the threaded post 24. The outer wall of the tapered post 23 is provided with various positioning blocks 22. T-shaped sliders 231 are respectively arranged axially and correspondingly. The inner side of the positioning block 22 is provided with a T-shaped groove 222 that cooperates with the T-shaped sliders 231. The cooperation of the T-shaped sliders 231 and the T-shaped groove 222 can assist the tapered column 23 to move more smoothly, while restricting the tapered column 23 from rotating with the threaded column 24. This allows the threaded column 24 to drive the tapered column 23 to move axially through the thread. In this way, the movement of the tapered column 23 drives the radial movement of the positioning block 22 and the arc-shaped fixing member 21, realizing the connection and separation of the roller and the bearing. During operation, the drive block 243 can be controlled to rotate. The rotation of the drive block 243 can drive the threaded column 24 to rotate synchronously. The threaded column 24 can then drive the tapered column 23 to move axially. Through the tapered structure, the positioning block 22 and the arc-shaped fixing member 21 move radially, realizing outward expansion. When the threaded column 24 rotates in the opposite direction, the positioning block 22 and the arc-shaped fixing member 21 can be retracted close to the tapered column 23 by the action of the return spring 12.

[0019] like Figure 2-3As shown, a guide slider 223 is provided at one end of the positioning block 22 near the end face of the cylinder 1. A strip groove 11 is provided on the end face of the cylinder 1, which cooperates with the guide slider 223 and is radially arranged. The cooperation between the guide slider 223 and the strip groove 11 is to limit and guide the radial movement of the positioning block 22, ensuring the stability of the positioning block 22 and the arc-shaped fixing member 21 during movement, and preventing the positioning block 22 and the arc-shaped fixing member 21 from deviating during movement. A return spring 12 is provided at one end of the guide slider 223 facing the outer wall of the cylinder 1, which is connected to the strip groove 11. The arrangement of the return spring 12 is to facilitate the... When the threaded column 24 rotates and drives the tapered column 23 away from the end face of the cylinder 1, the return spring 12 can exert a force on the end of the guide slider 223, causing the guide slider 223 to be driven to retract close to the tapered column 23, thereby separating it from the inner ring of the bearing. When the threaded column 24 rotates in the opposite direction and drives the tapered column 23 closer to the end face of the cylinder 1, the tapered column 23 can squeeze the positioning block 22 and the arc-shaped fixing member 21, causing the arc-shaped fixing member 21 to expand outward, while the return spring 12 contracts in the strip groove 11, and the arc-shaped fixing member 21 forms a tight connection with the inner ring of the bearing.

[0020] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A replaceable roller for a courier sorting machine, comprising a cylinder body (1), characterized in that: Both ends of the cylindrical body (1) are provided with fixing components (a) that cooperate with the inner ring of the bearing. The fixing components (a) include at least three arc-shaped fixing parts (21) that cooperate with the inner ring of the bearing and are arranged at equal intervals, and positioning blocks (22) located inside the arc-shaped fixing parts (21). Each arc-shaped fixing part (21) surrounds each other to form a columnar structure that cooperates with the inner wall of the inner ring of the bearing. Each arc-shaped fixing part (21) and each positioning block (22) can move radially synchronously. The inner sides of each positioning block (22) surround each other to form a conical enclosure cavity (221). The enclosure cavity (221) is provided with a conical column (23) that is coaxially cooperates with the enclosure cavity (221) and can move axially.

2. The replaceable roller for a courier sorting machine according to claim 1, characterized in that: The tapered column (23) has a threaded column (24) at its axis that is threadedly connected to the tapered column (23). One end of the threaded column (24) is coaxial with the cylinder (1) and rotatably connected. The other end of the threaded column (24) protrudes beyond the end face of the tapered column (23).

3. The replaceable roller for a courier sorting machine according to claim 1, characterized in that: The outer wall of the tapered column (23) is provided with T-shaped sliders (231) that correspond to each positioning block (22) and are axially arranged. The inner side of the positioning block (22) is provided with a T-shaped groove (222) that cooperates with the T-shaped slider (231).

4. The replaceable roller for a courier sorting machine according to claim 2, characterized in that: One end of the threaded post (24) extends into the cylinder (1) and is fitted with a rotating bearing (241). The cylinder (1) is provided with a fixing block (242) connected to the rotating bearing (241). The other end of the threaded post (24) is provided with a driving block (243).

5. The replaceable roller for a courier sorting machine according to claim 1, characterized in that: The positioning block (22) is provided with a guide slider (223) at one end near the end face of the cylinder (1), and the end face of the cylinder (1) is provided with a strip groove (11) that cooperates with the guide slider (223) and is radially arranged.

6. The replaceable roller for a courier sorting machine according to claim 5, characterized in that: The guide slider (223) is provided with a return spring (12) connected to the strip groove (11) at one end facing the outer wall of the cylinder (1).

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