Curled edge streamline carrier roller

Abstract

The utility model discloses a hemming streamline carrier roller which comprises a shell, a carrier roller shaft, bearing seats and bearing assemblies, the bearing seats are arranged at the two ends of the shell, sealing assemblies are arranged in the bearing seats, and the bearing assemblies are arranged in the sealing assemblies. Bearing assemblies are installed at the two ends of the carrier roller shaft, and the carrier roller shaft is rotationally connected with the shell through the bearing assemblies. A baffle ring is arranged at the end, located in the bearing seat, of the sealing assembly, a protruding ring is arranged on the inner side wall of the sealing assembly, and the section of the protruding ring is of a trapezoidal structure. The bearing assembly comprises a deep groove ball bearing, and the outer side wall of the deep groove ball bearing correspondingly abuts against the protruding ring of the sealing assembly; due to the arrangement of the arc-shaped end parts, when the belt is extruded or deviates between the carrier roller sets, due to the arrangement of the arc-shaped end parts, the belt and the carrier rollers can be in surface contact, the contact area is large, the pressure intensity acting on the belt is small, the deformation degree of the belt is reduced, and the abrasion degree of the belt is reduced.

Description

[0001] This application is based on and claims the priority benefit of the Chinese patent application with application number: 2024208761480 filed on April 25, 2024; the patent name is: A curling roller, and the entire content of the patent application is cited here for reference. Technical Field

[0002] The utility model belongs to the technical field of rollers, and in particular relates to a curled streamlined roller. Background Art

[0003] Traditional rollers are usually made of metal materials. When a smooth belt is squeezed between roller groups, the ends of the rollers are at right angles, resulting in line contact between the belt and the rollers. The pressure acting on the belt is relatively large, causing the belt to deform significantly. During the operation of the belt conveyor, due to various factors such as equipment imbalance and external force interference, the belt is prone to deviation. Since the ends of the rollers are at right angles and in line contact with the belt, the belt is prone to scratches, which reduces the service life of the belt and increases equipment maintenance costs and downtime.

[0004] At the same time, the bearing is placed directly in the bearing seat. When the roller is tilted, the pressure of the conveyor belt on the roller shell acts on the bearing seat. Due to the tilt of the roller, the force of the bearing seat on the bearing and the reaction force of the roller shaft on the bearing are not in the same plane. This deviation will increase the friction between the bearing and the roller shaft, causing serious wear of the roller shaft and clearance, reducing the service life of the roller and shortening the replacement time of the roller. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a curled streamlined roller to at least solve one of the problems of the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A curling streamlined roller comprises a shell, a roller shaft, a bearing seat, and a bearing assembly. The shell is provided with bearing seats at both ends, the bearing seats are provided with sealing assemblies inside, and the bearing assembly is arranged inside the sealing assembly.

[0008] Bearing assemblies are installed at both ends of the roller shaft, and the roller shaft is rotatably connected to the housing through the bearing assemblies;

[0009] The sealing assembly is provided with a retaining ring at one end located inside the bearing seat. The sealing assembly is a tubular structure, and a raised ring is provided on the inner side wall of the sealing assembly. The cross section of the raised ring is a trapezoidal structure.

[0010] The bearing assembly includes a deep groove ball bearing, and the outer side wall of the deep groove ball bearing is in corresponding contact with the raised ring of the sealing assembly;

[0011] The edges of the two ends of the shell are curled and bent inwards to form arc-shaped ends. A circular ring connecting portion is provided inside the arc-shaped end. The circular ring connecting portion is a hollow or solid structure.

[0012] Preferably, the shell is sleeved on the outer wall of the bearing seat, the bearing seat is provided with a mounting groove, the sealing assembly is connected to the inner wall of the mounting groove, and the bearing assembly is installed on the inner wall of the sealing assembly.

[0013] Preferably, the arc-shaped end is vertically tangent to the outer shell near the side wall of the outer shell; the curvature of the arc-shaped end is 90° to 160°; the circular ring connecting portion is an annular structure, arranged along the inner side of the circular arc-shaped end, the circular ring connecting portion is concentrically arranged with the circular arc-shaped end, and the circular arc-shaped end is wrapped around the outer side of the circular ring connecting portion.

[0014] Preferably, the bearing assembly includes a bearing inner seal, and the bearing inner seal is arranged on the inner side of the retaining ring and is arranged on the roller shaft. The roller shaft is also provided with a deep groove ball bearing, a labyrinth inner seal, a labyrinth outer seal, an inner retaining ring, an outer retaining ring, a baffle, and an elastic retaining ring for the shaft in sequence; an outer sealing plate is also provided on the outer side of the elastic retaining ring for the shaft, and the outer sealing plate is movably connected to the bearing seat; an annular second protrusion is provided on the inner side of the outer sealing plate, and an annular first protrusion is provided on the side wall of the bearing seat, and the ends of the first protrusion and the second protrusion are hemispherical structures and can be engaged with each other.

[0015] Preferably, a pressure block is provided on the side of the outer sealing plate close to the shaft elastic retaining ring, and the pressure block presses the shaft elastic retaining ring.

[0016] Preferably, a plurality of cavities are formed on the side wall of the sealing assembly, and the width of the side of the raised ring close to the deep groove ball bearing is equal to the width of the deep groove ball bearing.

[0017] Preferably, an inner support rod is provided inside the circular connecting portion, and a plurality of connecting plates are provided between the inner support rod and the circular connecting portion, and a dividing cavity is formed between the plurality of connecting plates.

[0018] Preferably, the cross-sections of the plurality of connecting pieces are in a cross-shaped structure or an X-shaped structure.

[0019] Preferably, a support tube is directly provided between the annular connecting portion and the bearing seat, and the outer wall of the support tube is in close contact with the inner wall of the outer shell, thereby further strengthening the support for the outer shell and improving the overall stability of the roller.

[0020] Preferably, the shell adopts Q235B standard roller-specific tube.

[0021] Preferably, the arc angle of the circular arc end is 120°.

[0022] Preferably, the housing and the bearing seat are welded using ER50-6 welding wire and 95% argon gas protection.

[0023] Preferably, an inner support rod and four connecting plates are provided inside the circular connecting part, which can not only increase the support of the circular connecting part and prevent the circular arc end from being flattened, but also reduce the weight of the circular connecting part, save materials and make the roller lightweight.

[0024] Preferably, the sealing component is made of nylon, which can reduce noise, and through the cavity opened in the side wall of the sealing component, the heat generated during the rotation of the deep groove ball bearing can be transferred to the cavity through the sealing component. There is air in the cavity that circulates with the outside world, thereby accelerating heat dissipation and avoiding the high temperature effect of friction on the bearing component and the bearing seat to a certain extent, thereby extending the service life of the roller to a certain extent and achieving better economic benefits.

[0025] Through the provision of the arc-shaped end portion, when the belt is squeezed or deviates between the roller groups, the belt and the roller will come into surface contact due to the provision of the arc-shaped end portion, the contact area is large, and the pressure acting on the belt is small, thereby reducing the deformation of the belt and the degree of belt wear; coupled with the provision of the circular ring connection portion, a larger support surface is formed for the arc-shaped end portion, thereby avoiding the loss and deformation of the arc-shaped end portion itself, and further ensuring effective protection of the belt.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The utility model discloses a curled streamlined roller, which is provided with a nylon sealing component inside the bearing seat, and abuts against the outer wall of the deep groove ball bearing through a raised ring on the inner side of the sealing component, and the raised ring has a trapezoidal cross-section, with a large width on the side close to the sealing component and a small width on the side close to the deep groove ball bearing. When the conveyor belt is tilted, the contact surface between the deep groove ball bearing, the sealing component and the bearing seat can be increased, and the effect of the component force caused by the tilt on the bearing can be reduced, so that the direction error of the reaction force of the bearing seat on the deep groove ball bearing to the roller shaft on the deep groove ball bearing is reduced, thereby reducing the friction between the deep groove ball bearing and the roller shaft, and further extending the service life of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0030] Figure 2This is a schematic diagram of the installation of the bearing assembly of the present invention.

[0031] Figure 3 It is a schematic diagram of a bearing assembly of the present utility model.

[0032] Figure 4 It is a schematic diagram of the installation structure of the sealing component of the present utility model.

[0033] Figure 5 It is a structural schematic diagram of the sealing component of the utility model.

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing component of the present utility model.

[0035] Figure 7 It is a structural schematic diagram of the circular ring connecting portion of the utility model.

[0036] Figure 8 It is a cross-sectional schematic diagram of the circular ring connecting portion of the present invention.

[0037] Figure 9 It is a schematic diagram of the partially enlarged structure of A of the present utility model. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Example

[0041] refer to Figure 1-69. A curled streamlined roller comprises an outer shell 1, a roller shaft 3, a bearing seat 2 and a bearing assembly. Bearing seats 2 are provided at both ends of the outer shell 1. A sealing assembly 13 is provided inside the bearing seat 2, and the bearing assembly is arranged in the sealing assembly 13; bearing assemblies are installed at both ends of the roller shaft 3, and the roller shaft 3 is rotatably connected to the outer shell 1 through the bearing assembly; a retaining ring 14 is provided at one end of the sealing assembly 13 located inside the bearing seat 2, the sealing assembly is a tubular structure, a raised ring 15 is provided on the inner wall of the sealing assembly 13, and the cross-section of the raised ring 15 is a trapezoidal structure; the bearing assembly comprises a deep groove ball bearing 5, and the outer wall of the deep groove ball bearing 5 corresponds to the raised ring 15 of the sealing assembly 13; the edges at both ends of the outer shell 1 are curled and bent inward to form an arc-shaped end 12, and a circular ring connecting portion 21 is provided on the inner side of the circular arc-shaped end 12, and the circular ring connecting portion 21 is a hollow or solid structure.

[0042] The housing 1 is fitted over the outer wall of the bearing seat 2. The bearing seat 2 is provided with a mounting groove. The sealing assembly 13 is connected to the inner wall of the mounting groove. The bearing assembly is mounted on the inner wall of the sealing assembly 13. The arc-shaped end portion 12 is perpendicular to the housing 1 near the side wall of the housing 1 and has an arc angle of 90° to 160°. The annular connecting portion 21 is an annular structure and is arranged along the inner side of the arc-shaped end portion 12. The annular connecting portion 21 is concentric with the arc-shaped end portion 12 and wraps around the outer side of the annular connecting portion 21. The bearing assembly includes a bearing inner seal 4, which is arranged on the inner side of the retaining ring 14 and on the roller shaft 3. The roller shaft 3 is also provided with a deep groove ball bearing 5, a labyrinth inner seal 6, a labyrinth outer seal 7, an inner retaining ring 8, an outer retaining ring 9, a baffle 10, and an elastic retaining ring for the shaft in sequence; an outer sealing plate 16 is also provided on the outer side of the elastic retaining ring for the shaft, and the outer sealing plate 16 is movably connected to the bearing seat 2; an annular second protrusion 162 is provided on the inner side of the outer sealing plate 16, and an annular first protrusion 161 is provided on the side wall of the bearing seat 2. The ends of the first protrusion 161 and the second protrusion 162 are hemispherical structures and can be engaged with each other.

[0043] The outer sealing plate 16 is provided with a pressure block on the side close to the shaft circlip to compress the shaft circlip. The sidewall of the sealing assembly 13 is provided with multiple cavities 131. The width of the side of the raised ring 15 close to the deep groove ball bearing 5 is equal to the width of the deep groove ball bearing 5.

[0044] A support tube 22 is directly provided between the annular connecting portion 21 and the bearing seat 2, and the outer wall of the support tube 22 is in close contact with the inner wall of the outer shell 1, thereby further strengthening the support for the outer shell 1 and improving the overall stability of the roller.

[0045] The housing 1 is made of Q235B standard roller-specific pipe. The arc of the arc-shaped end 12 is 120°. The housing 1 and the bearing seat 2 are welded with ER50-6 welding wire and 95% argon gas protection.

[0046] In another embodiment, specifically, an inner support rod 211 and four connecting pieces 212 are provided inside the circular connecting portion 21, which can not only increase the support of the circular connecting portion 21 and prevent the circular arc-shaped end portion 12 from being flattened, but also reduce the weight of the circular connecting portion 21, save materials, and make the roller lightweight.

[0047] The sealing component 13 is made of nylon, which can reduce noise. In addition, through the cavity 131 opened on the side wall of the sealing component 13, the heat generated during the rotation of the deep groove ball bearing 5 can be transferred to the cavity 131 through the sealing component 13. There is air in the cavity 131 that circulates with the outside world, thereby accelerating heat dissipation and avoiding the high temperature effect of friction on the bearing component and the bearing seat 2 to a certain extent, thereby extending the service life of the roller to a certain extent and achieving better economic benefits.

[0048] By setting a nylon sealing component 13 inside the bearing seat 2, and abutting against the outer wall of the deep groove ball bearing 5 through the raised ring 15 on the inner side of the sealing component 13, and the cross-section of the raised ring 15 is a trapezoidal structure, with a larger width on the side close to the sealing component 13 and a smaller width on the side close to the deep groove ball bearing 5, when the conveyor belt tilts, the contact surface between the deep groove ball bearing 5, the sealing component 13 and the bearing seat 2 can be increased, and the effect of the component force caused by the tilt on the bearing is reduced, so that the directional error of the reaction force of the bearing seat 2 on the deep groove ball bearing 5 on the roller shaft 3 to the deep groove ball bearing 5 is reduced, thereby reducing the friction between the deep groove ball bearing 5 and the roller shaft 3, and further extending the service life of the roller.

[0049] In another embodiment, referring to Figure 7-8 An inner support rod 211 is provided inside the circular connecting part 21, and a plurality of connecting pieces 212 are provided between the inner support rod 211 and the circular connecting part 21, and a partition cavity 213 is formed between the plurality of connecting pieces 212. The cross-sections of the plurality of connecting pieces 212 are in a "cross" structure or an "X" structure. By setting the circular arc-shaped end portion 12, when the belt is squeezed or deviates between the roller groups, due to the setting of the circular arc-shaped end portion 12, the belt and the roller will have surface contact, the contact area is large, and the pressure acting on the belt is small, which reduces the deformation degree of the belt and reduces the wear degree of the belt; in addition, the setting of the circular ring connecting part 21 forms a larger support surface for the circular arc-shaped end portion 12, avoiding the loss and deformation of the circular arc-shaped end portion 12 itself, and further ensuring the effective protection of the belt.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A curled streamlined roller, comprising a housing (1), a roller shaft (3), a bearing seat (2), and a bearing assembly, characterized in that: Bearing seats (2) are provided at both ends of the housing (1), a sealing assembly (13) is provided inside the bearing seat (2), and the bearing assembly is arranged inside the sealing assembly (13); Bearing assemblies are installed at both ends of the roller shaft (3), and the roller shaft (3) is rotatably connected to the housing (1) through the bearing assemblies; The sealing component (13) is provided with a retaining ring (14) at one end located inside the bearing seat (2); the sealing component (13) is a tubular structure; the inner side wall of the sealing component (13) is provided with a raised ring (15); and the cross section of the raised ring (15) is a trapezoidal structure; The bearing assembly includes a deep groove ball bearing (5), and the outer side wall of the deep groove ball bearing (5) is in corresponding contact with the raised ring (15) of the sealing assembly (13); The edges of both ends of the shell (1) are curled and bent inwards to form arc-shaped ends (12). A circular connecting portion (21) is provided inside the arc-shaped ends (12). The circular connecting portion (21) is a hollow or solid structure.

2. The curled streamlined roller according to claim 1, characterized in that: The housing (1) is sleeved on the outer wall of the bearing seat (2); the bearing seat (2) is provided with a mounting groove; the sealing assembly (13) is connected to the inner wall of the mounting groove; and the bearing assembly is mounted on the inner wall of the sealing assembly (13).

3. The curled streamlined roller according to claim 1, characterized in that: The arc-shaped end portion (12) is in a vertical tangent state with the outer shell (1) near the side wall of the outer shell (1); the arc of the arc-shaped end portion (12) is 90° to 160°; the annular connecting portion (21) is an annular structure, arranged along the inner side of the arc-shaped end portion (12), the annular connecting portion (21) is concentrically arranged with the arc-shaped end portion (12), and the arc-shaped end portion (12) is wrapped around the outer side of the annular connecting portion (21).

4. The curled streamlined roller according to claim 1, characterized in that: The bearing assembly comprises a bearing inner seal (4), the bearing inner seal (4) being arranged on the inner side of a retaining ring (14) and being arranged on a roller shaft (3), the roller shaft (3) being further provided with a deep groove ball bearing (5), a labyrinth inner seal (6), a labyrinth outer seal (7), an inner retaining ring (8), an outer retaining ring (9), a retaining plate (10), and an elastic retaining ring for the shaft in sequence; an outer sealing plate (16) is further provided on the outer side of the elastic retaining ring for the shaft, and the outer sealing plate (16) is movably connected to the bearing seat (2); an annular second protrusion (162) is provided on the inner side of the outer sealing plate (16), and an annular first protrusion (161) is provided on the side wall of the bearing seat (2); the ends of the first protrusion (161) and the second protrusion (162) are hemispherical structures and can be engaged with each other.

5. The curled streamlined roller according to claim 4, characterized in that: A pressing block is provided on one side of the outer sealing plate (16) close to the shaft elastic retaining ring, and the pressing block presses the shaft elastic retaining ring.

6. A curled streamlined roller according to any one of claims 1 to 5, characterized in that: The side wall of the sealing assembly (13) is provided with a plurality of cavities (131), and the width of the side of the raised ring (15) close to the deep groove ball bearing (5) is equal to the width of the deep groove ball bearing (5).

7. The curled streamlined roller according to claim 1, characterized in that: An inner support rod (211) is provided inside the annular connecting portion (21), a plurality of connecting pieces (212) are provided between the inner support rod (211) and the annular connecting portion (21), and a separation cavity (213) is formed between the plurality of connecting pieces (212).

8. The curled streamlined roller according to claim 7, characterized in that: The cross sections of the plurality of connecting pieces (212) are in a "cross"-shaped structure or an "X"-shaped structure.

9. The curled streamlined roller according to claim 1, characterized in that: The annular connecting portion (21) and the bearing seat (2) are directly provided with a support tube (22), and the outer wall of the support tube (22) is in close contact with the inner wall of the outer shell (1); thus, the support for the outer shell (1) is further strengthened, and the overall stability of the roller is improved.

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