Nylon ring fixing structure for carrier roller of belt conveyor

Abstract

The utility model discloses a belt conveyor carrier roller nylon ring fixing structure which comprises a carrier roller (1), installation shafts (2) are formed at the two ends of the carrier roller (1), a plurality of positioning key first installation holes (3) are formed in the carrier roller (1), a nylon ring (4) is installed at the position of each positioning key first installation hole (3), and the nylon rings (4) are arranged on the carrier roller (1). A second positioning key mounting hole (5) is formed in the nylon ring (4), and the nylon ring (4) is mounted on the carrier roller (1) through a positioning key (6). According to the utility model, the nylon ring can be effectively prevented from moving and shifting in the axial direction.

Description

Technical Field

[0001] The utility model relates to a nylon ring fixing structure, in particular to a nylon ring fixing structure for a belt conveyor roller. Background Art

[0002] The conveyor belt roller is located between the driving roller and the driven roller, and plays the role of supporting the conveyor belt. Some rollers use several nylon rings to be fixed to the roller shaft through interference fit to support the conveyor belt. During the installation process, the nylon ring needs to be installed on the roller shaft after the inner ring of the nylon ring is heated to expand it. Some roller nylon rings use clearance fit and are fixed by setting three sets of top screws on the nylon ring.

[0003] Due to the tight installation and long-term rotation of the belt conveyor rollers, the nylon rings and the conveyor belt are in rolling contact for a long time, which causes the nylon rings on the rollers to crack and loosen easily, and move and shift in the axial direction of the rollers, making the contact friction between the nylon rings on the rollers and the conveyor belt uneven, which seriously causes the conveyor belt to deviate or the roller bearings to be damaged. Utility Model Content

[0004] The utility model aims to provide a nylon ring fixing structure for a belt conveyor roller to solve the technical problems in the prior art, and can effectively prevent the nylon ring from moving and shifting in the axial direction.

[0005] The utility model provides a nylon ring fixing structure for a belt conveyor roller, comprising a roller, both ends of the roller are formed with mounting shafts, the roller is provided with a plurality of first mounting holes for positioning keys, a nylon ring is installed at the position of each first mounting hole for positioning keys, the nylon ring is provided with a second mounting hole for positioning keys, and the nylon ring is installed on the roller via the positioning keys.

[0006] In the aforementioned belt conveyor roller nylon ring fixing structure, preferably, a first annular key groove is provided at the position of each first mounting hole of the positioning key on the roller.

[0007] In the aforementioned belt conveyor roller nylon ring fixing structure, preferably, the depth of the first annular key groove is half the width of the positioning key.

[0008] In the aforementioned belt conveyor roller nylon ring fixing structure, preferably, a second annular key groove is formed on the inner ring surface of each nylon ring.

[0009] In the aforementioned belt conveyor roller nylon ring fixing structure, preferably, the depth of the second annular key groove is half the width of the positioning key.

[0010] In the aforementioned belt conveyor roller nylon ring fixing structure, preferably, the positioning key is made of a tough material.

[0011] Compared with the prior art, the utility model includes a roller, a mounting shaft is formed at both ends of the roller, a plurality of first mounting holes for positioning keys are opened on the roller, a nylon ring is installed at the position of each first mounting hole for positioning keys, a second mounting hole for positioning keys is opened on the nylon ring, and the nylon ring is installed on the roller through the positioning key. The utility model uses the positioning key to fix the nylon ring on the mounting shaft, which can effectively prevent the nylon ring from generating axial displacement on the mounting shaft and improve its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an axonometric drawing of the utility model;

[0013] Figure 2 It is the axonometric view of the roller;

[0014] Figure 3 It is an axonometric view of a nylon ring;

[0015] Figure 4 It is a cross-sectional view of the utility model after the positioning key is assembled.

[0016] Explanation of the reference numerals: roller 1, mounting shaft 2, first mounting hole 3 of positioning key, nylon ring 4, second mounting hole 5 of positioning key, positioning key 6, first annular key groove 7, second annular key groove 8. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0018] Embodiments of the present utility model: Figure 1-Figure 4 As shown, a nylon ring fixing structure for a belt conveyor roller includes a roller 1, and mounting shafts 2 are formed at both ends of the roller 1. The diameter of the mounting shaft 2 is smaller than the diameter of the roller 1, and a shaft shoulder is formed at the connection position of the two. The roller 1 is installed on the frame of the belt conveyor through the mounting shafts 2 at both ends. A plurality of positioning key first mounting holes 3 are opened on the roller 1. In this embodiment, each positioning key first mounting hole 3 is arranged at equal intervals along the axial direction of the roller 1, and a nylon ring 4 is installed at the position of each positioning key first mounting hole 3, and a positioning key second mounting hole 5 is opened on the nylon ring 4. The nylon ring 4 is installed on the roller 1 through the positioning key 6.

[0019] Specifically, the first mounting hole 3 is opened along the radial direction of the roller 1, and the second mounting hole 5 is opened along the radial direction of the nylon ring 4. The size of the second mounting hole 5 is the same as that of the first mounting hole 3, and their shapes and sizes are the same as the end face shape and size of the positioning key 6.

[0020] In a preferred embodiment, a first annular key groove 7 is provided at the position of each first mounting hole 3 of the positioning key on the roller 1. The depth of the first annular key groove 7 is half of the width of the positioning key 6.

[0021] Furthermore, a second annular key groove 8 is formed on the inner annular surface of each nylon ring 4. The depth of the second annular key groove 8 is half the width of the positioning key 6. The positioning key 6 is made of a tough material, and in this embodiment, the positioning key 6 is preferably made of low-carbon steel.

[0022] When the nylon ring 4 is installed on the roller 1 , the first annular key groove 7 and the second annular key groove 8 together form a large annular space, which is used to accommodate the positioning key 6 .

[0023] During installation, align the second mounting hole 5 of the positioning key on the nylon ring 4 with the first mounting hole 3 of the positioning key on the roller 1, and then pass the positioning key 6 through the second mounting hole 5 of the positioning key and the first mounting hole 3 of the positioning key, so that the lengths left at both ends of the positioning key 6 are roughly the same, and then rotate the nylon ring 4. Since the positioning key 6 has a certain toughness, it is necessary to ensure that the roller 1 does not rotate when the nylon ring 4 is rotated. As the nylon ring 4 rotates, the positioning key 6 is deformed, and the two ends of the positioning key 6 gradually enter the annular space formed by the first annular key groove 7 and the second annular key groove 8. After installation, Figure 4 As shown, at this time, the nylon ring 4 cannot produce axial displacement under the restriction of the positioning key 6, which effectively improves the service life and ensures that the nylon ring 4 is in effective contact with the conveyor belt.

[0024] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A belt conveyor roller nylon ring fixing structure, comprising a roller (1), characterized in that: The two ends of the roller (1) are formed with mounting shafts (2), the roller (1) is provided with a plurality of first mounting holes (3) for positioning keys, a nylon ring (4) is installed at the position of each first mounting hole (3) for positioning keys, the nylon ring (4) is provided with a second mounting hole (5) for positioning keys, and the nylon ring (4) is installed on the roller (1) via a positioning key (6).

2. The belt conveyor roller nylon ring fixing structure according to claim 1 is characterized in that: A first annular key groove (7) is provided at the position of each first mounting hole (3) of the positioning key on the roller (1).

3. The belt conveyor roller nylon ring fixing structure according to claim 2 is characterized in that: The depth of the first annular key groove (7) is half the width of the positioning key (6).

4. The belt conveyor roller nylon ring fixing structure according to claim 2 is characterized in that: A second annular key groove (8) is formed on the inner annular surface of each nylon ring (4).

5. The belt conveyor roller nylon ring fixing structure according to claim 4 is characterized in that: The depth of the second annular key groove (8) is half the width of the positioning key (6).

6. The belt conveyor roller nylon ring fixing structure according to claim 1 is characterized in that: The positioning key (6) is made of a material with toughness.

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