Rubber coating-free driven roller

Abstract

The utility model relates to the technical field of belt conveyor rollers, and particularly discloses a rubber-coating-free driven roller which comprises a roller body, a wear-resistant ring, a rotating shaft and a bearing seat. The axis of the barrel is perpendicular to the length direction of a conveying belt on the belt conveyor. The number of the wear-resistant rings is multiple, the multiple wear-resistant rings are coaxially arranged and evenly distributed in the axis direction of the barrel at equal intervals, the inner ring wall of each wear-resistant ring is fixedly connected with the outer side wall face of the barrel, and the outer ring wall of each wear-resistant ring can be in friction transmission connection with the conveying belt; the rotating shaft is fixedly connected with the inner wall of the barrel through a connecting piece; the two bearing seats are symmetrically arranged on the two sides of the barrel in the axis direction of the barrel, and the two ends of the rotating shaft penetrate out of the two ends of the barrel respectively and are fixed in inner rings of the corresponding bearing seats. According to the rubber-coating-free driven roller, rubber coating treatment is not needed, and meanwhile good friction transmission force can be provided for the conveying belt.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor rollers, and more particularly to a rubber-free driven roller. Background Art

[0002] Belt conveyors, also known as belt conveyors or rubber belt conveyors, are a commonly used material handling equipment. They are widely used in industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, postal services, printing, food, chemicals, and mining. In the manufacturing industry, they are often used to transport parts, semi-finished products, and finished products from one production link to another, achieving production line automation.

[0003] To enhance friction between the pulleys and the conveyor belt, most belt conveyors currently use rubber coating on the pulleys. This involves coating the drive and transmission pulleys with a layer of wear-resistant rubber. This increased surface friction ensures stable belt operation and high material conveying efficiency. However, due to prolonged friction and compression with the conveyor belt, the rubber coating gradually wears away, becoming rough and even cracking and flaking. Once the rubber coating has worn sufficiently, it no longer provides sufficient friction, compromising the proper functioning of the conveyor belt. Therefore, the rubber coating must be regularly replaced to ensure adequate friction between the pulleys and the conveyor belt. Frequently replacing the rubber coating on the pulleys not only increases the belt conveyor's maintenance costs, but also requires shutting down the conveyor for each replacement, interrupting ongoing material conveying operations. This, in turn, impacts production efficiency and capacity, resulting in significant financial losses for the company.

[0004] Therefore, for belt conveyors, how to provide a driven roller that does not require rubber coating and can provide good friction transmission force to the conveyor belt is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, in order to solve the technical problem in the prior art that the conveyor needs to be shut down when replacing the rubber coating of the driven roller of the belt conveyor, which not only increases the maintenance cost of the belt conveyor, but also wastes time and causes huge economic losses to the enterprise, the utility model provides a driven roller without rubber coating.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rubber-free driven roller can be installed on the frame of a belt conveyor, comprising a cylinder, a wear-resistant ring, a rotating shaft and a bearing seat; the cylinder is arranged horizontally, and its axis is perpendicular to the length direction of the conveyor belt on the belt conveyor; there are multiple wear-resistant rings, and the multiple wear-resistant rings are coaxially arranged and evenly spaced along the axial direction of the cylinder, and the inner ring wall of each wear-resistant ring is fixedly connected to the outer wall surface of the cylinder, and the outer ring wall can be frictionally connected to the conveyor belt; the rotating shaft is coaxially arranged with the cylinder, and the rotating shaft is fixedly connected to the inner wall of the cylinder through a connecting piece; there are two bearing seats and they are symmetrically arranged on both sides of the cylinder along the axial direction of the cylinder. The two ends of the rotating shaft respectively pass through the two ends of the cylinder and are fixed in the corresponding inner ring of the bearing seat, and both bearing seats can be installed on the frame.

[0008] Preferably, each of the wear-resistant rings is corrugated along its circumferential direction, the fillet radius of the crest of each wear-resistant ring is 10mm-20mm, the fillet radius of the trough of the corrugation is 5mm-10mm, and the inclination angle of the corrugated edge is 25°-35°.

[0009] Preferably, the connecting member is a fixed plate, which is arranged in the inner cavity of the cylinder, and its circumferential end is welded and fixed to the inner wall of the cylinder. A fixing hole is provided on the fixed plate, and the rotating shaft axially passes through the fixing hole and its shaft wall is interference fit with the fixing hole.

[0010] Preferably, a rubber-free driven roller further includes bearings, wherein there are two bearings and the bearings are respectively fixed in the inner rings of the two bearing seats, and the two ends of the rotating shaft are respectively fixed in the bearing holes of the corresponding bearings.

[0011] Preferably, a rubber-free driven roller also includes an outer end cover of the bearing seat and an inner end cover of the bearing seat; there are two outer end covers of the bearing seat, and the two outer end covers of the bearing seat are respectively fixed on the side of the two bearing seats away from the cylinder body; there are two inner end covers of the bearing seat, and the two inner end covers of the bearing seat are respectively fixed on the side of the two bearing seats close to the cylinder body; each inner end cover of the bearing seat is provided with a through hole corresponding to the bearing hole, and the two ends of the rotating shaft respectively pass through the through holes and are fixed in the corresponding bearing holes.

[0012] Preferably, a rubber-free driven roller further includes a sealing packing, an annular assembly groove is opened on the hole wall of the perforation, the outer ring surface of the sealing packing abuts against the bottom wall of the assembly groove, and the inner ring surface is tightly fitted and rotatably connected to the shaft wall of the rotating shaft.

[0013] Preferably, each of the wear-resistant rings has a thickness of 2 mm to 8 mm and a width of 10 mm to 20 mm.

[0014] Preferably, the wear-resistant ring is made of a wear-resistant and corrosion-resistant alloy material with a Rockwell hardness between 55 and 60.

[0015] Preferably, the cylinder is made of alloy steel.

[0016] Preferably, the sealing packing is made of polytetrafluoroethylene.

[0017] Through the above technical solution, it can be seen that compared with the prior art, the utility model discloses a driven roller without rubber coating, the main effects and advantages of which are:

[0018] 1. The wear-resistant ring increases the friction between the cylinder and the conveyor belt, thereby improving the conveying efficiency of the belt conveyor; using the wear-resistant ring instead of the rubber layer enables the belt conveyor to operate stably for a long time, reduces the maintenance cost of the belt conveyor, and also avoids the pollution to the environment caused by the removal of the rubber layer; arranging the wear-resistant ring into a corrugated shape increases the friction contact area between the outer ring wall of the wear-resistant ring and the conveyor belt, further improving the friction transmission capacity between the wear-resistant ring and the conveyor belt.

[0019] 2. Fix the rotating shaft in the cylinder through the fixing plate so that the cylinder and the rotating shaft rotate synchronously.

[0020] 3. The bearing seat can be encapsulated by the outer end cover and the inner end cover of the bearing seat to protect the internal bearing.

[0021] 4. Sealing packing can prevent external moisture and dust from entering the bearing seat, thereby extending the service life of the bearing.

[0022] 5. The cylinder made of alloy steel has high strength, is not easy to damage, and has strong wear resistance and corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A cross-sectional view of the overall structure provided by the utility model;

[0025] Figure 2 A schematic diagram of the structure of the cylinder surface provided by the utility model;

[0026] Figure 3 The utility model provides Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 The utility model provides Figure 1 Schematic diagram of the inner end cover of the middle bearing housing.

[0028] In the figure: 1-cylinder, 2-wear-resistant ring, 3-rotating shaft, 4-bearing seat, 5-connecting piece, 6-bearing, 7-bearing seat outer end cover, 8-bearing seat inner end cover, 9-sealing packing, 81-perforation, 811-assembly groove. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] See attached Figures 1 to 4, is a rubber-free driven roller of the present invention, which can be installed on the frame of the belt conveyor, including a cylinder 1, a wear-resistant ring 2, a rotating shaft 3 and a bearing seat 4; the cylinder 1 is arranged horizontally, and its axis is perpendicular to the length direction of the conveyor belt on the belt conveyor; there are multiple wear-resistant rings 2, and multiple wear-resistant rings 2 are coaxially arranged and evenly spaced along the axis direction of the cylinder 1. The inner ring wall of each wear-resistant ring 2 is fixedly connected to the outer wall surface of the cylinder 1, and the outer ring wall can be connected to the conveyor belt by friction transmission; the rotating shaft 3 is coaxially arranged with the cylinder 1, and the rotating shaft 3 is fixedly connected to the inner wall of the cylinder 1 through a connecting piece 5; there are two bearing seats 4 and they are symmetrically arranged on both sides of the cylinder 1 along the axis direction. The two ends of the rotating shaft 3 pass through the two ends of the cylinder 1 and are fixed in the inner ring of the corresponding bearing seat 4. Both bearing seats 4 can be installed on the frame. Among them, the wear-resistant rings can be clad on the outer wall surface of the cylinder by laser cladding technology.

[0033] Specifically, each wear-resistant ring 2 has a thickness of 2 mm to 8 mm and a width of 10 mm to 20 mm.

[0034] Specifically, the wear-resistant ring 2 is made of a wear-resistant and corrosion-resistant alloy material with a Rockwell hardness of 55 to 60.

[0035] Specifically, the cylinder 1 is made of alloy steel.

[0036] In some specific examples, each wear-resistant ring 2 is corrugated along its circumferential direction, the fillet radius of the wave crest of each wear-resistant ring 2 is 10mm-20mm, the fillet radius of the wave trough is 5mm-10mm, and the inclination angle of the corrugated edge is 25°-35°.

[0037] In other specific examples, the connecting member 5 is a fixed plate, which is arranged in the inner cavity of the cylinder 1, and its circumferential end is welded and fixed to the inner wall of the cylinder 1. A fixing hole is opened on the fixing plate, and the rotating shaft 3 axially passes through the fixing hole and its shaft wall is interference fit with the fixing hole.

[0038] In some embodiments, a rubber-free driven roller further includes bearings 6 , two bearings 6 are respectively fixed in the inner rings of the two bearing seats 4 , and both ends of the rotating shaft 3 are respectively fixed in the bearing holes of the corresponding bearings 6 .

[0039] In other embodiments, a rubber-free driven roller further includes a bearing seat outer end cover 7 and a bearing seat inner end cover 8; there are two bearing seat outer end covers 7, and the two bearing seat outer end covers 7 are respectively fixed on the side of the two bearing seats 4 away from the cylinder 1; there are two bearing seat inner end covers 8, and the two bearing seat inner end covers 8 are respectively fixed on the side of the two bearing seats 4 close to the cylinder 1; each bearing seat inner end cover 8 is provided with a through hole 81 corresponding to the bearing hole, and the two ends of the rotating shaft 3 respectively pass through the through holes 81 and are fixed in the corresponding bearing holes.

[0040] In some embodiments, a rubber-free driven roller further includes a sealing packing 9, and an annular assembly groove 811 is provided on the wall of the through hole 81. The outer ring surface of the sealing packing 9 abuts against the bottom wall of the assembly groove 811, and the inner ring surface is tightly fitted with the shaft wall of the rotating shaft 3 and is rotatably connected.

[0041] Specifically, the sealing packing 9 is made of polytetrafluoroethylene.

[0042] The utility model provides a rubber-coated driven roller that can use laser cladding technology to melt corrugated wear-resistant rings onto the outer wall surface of the cylinder, and use multiple wear-resistant rings to replace the rubber coating layer. The multiple wear-resistant rings increase the friction between the cylinder and the conveyor belt, improve the conveying efficiency of the belt conveyor, reduce the maintenance cost of the belt conveyor, and enable the belt conveyor to operate stably for a long time; the bearing seat outer end cover and the bearing seat inner end cover can be used to encapsulate the bearing seat to protect the bearing in the bearing seat, and further through the sealing packing, external moisture, dust or other impurities can be prevented from entering the interior of the bearing seat, thereby extending the service life of the bearing and reducing the maintenance work of the belt conveyor.

[0043] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rubber-free driven roller that can be installed on the frame of a belt conveyor, characterized in that: include: A cylinder (1), wherein the cylinder (1) is arranged horizontally, and its axis is perpendicular to the length direction of the conveyor belt on the belt conveyor; Wear-resistant rings (2), the wear-resistant rings (2) are multiple, the multiple wear-resistant rings (2) are coaxially arranged and evenly spaced along the axial direction of the cylinder (1), the inner ring wall of each wear-resistant ring (2) is fixedly connected to the outer wall of the cylinder (1), and the outer ring wall can be frictionally connected to the conveyor belt; A rotating shaft (3), the rotating shaft (3) and the cylinder (1) are coaxially arranged, and the rotating shaft (3) is fixedly connected to the inner wall of the cylinder (1) via a connecting piece (5); The bearing seats (4) are two and are symmetrically arranged on both sides of the cylinder (1) along the axial direction thereof. The two ends of the rotating shaft (3) respectively pass through the two ends of the cylinder (1) and are fixed in the inner rings of the corresponding bearing seats (4). Both bearing seats (4) can be installed on the frame.

2. The rubber-free driven roller according to claim 1, characterized in that: Each of the wear-resistant rings (2) is corrugated along its circumferential direction, the fillet radius of the wave crest of each of the wear-resistant rings (2) is 10mm-20mm, the fillet radius of the wave trough is 5mm-10mm, and the inclination angle of the corrugated edge is 25°-35°.

3. The rubber-free driven roller according to claim 1, characterized in that: The connecting member (5) is a fixed plate, which is arranged in the inner cavity of the cylinder (1) and has its circumferential end welded to the inner wall of the cylinder (1). A fixing hole is provided on the fixed plate, and the rotating shaft (3) axially passes through the fixing hole, and its shaft wall is interference-fitted with the fixing hole.

4. The rubber-free driven roller according to claim 1, characterized in that: It also includes bearings (6), wherein the bearings (6) are two and are respectively fixed in the inner rings of the two bearing seats (4), and the two ends of the rotating shaft (3) are respectively fixed in the bearing holes of the corresponding bearings (6).

5. The rubber-free driven roller according to claim 4, characterized in that: Also includes: A bearing seat outer end cover (7), wherein the bearing seat outer end covers (7) are two, and the two bearing seat outer end covers (7) are respectively fixed on the side of the two bearing seats (4) away from the cylinder (1); The inner end cover (8) of the bearing seat is two, and the two inner end covers (8) of the bearing seat are respectively fixed on one side of the two bearing seats (4) close to the cylinder (1); each inner end cover (8) of the bearing seat is provided with a through hole (81) corresponding to the bearing hole, and the two ends of the rotating shaft (3) respectively pass through the through hole (81) and are fixed in the corresponding bearing hole.

6. The rubber-free driven roller according to claim 5, characterized in that: It also includes a sealing packing (9), an annular assembly groove (811) is provided on the hole wall of the through hole (81), the outer ring surface of the sealing packing (9) abuts against the bottom wall of the assembly groove (811), and the inner ring surface is tightly fitted with the shaft wall of the rotating shaft (3) and is rotatably connected.

7. The rubber-free driven roller according to any one of claims 1 or 2, characterized in that: The thickness of each wear-resistant ring (2) is 2mm-8mm, and the width is 10mm-20mm.

8. The rubber-free driven roller according to claim 7, characterized in that: The wear-resistant ring (2) is made of a wear-resistant and corrosion-resistant alloy material with a Rockwell hardness between 55 and 60.

9. The rubber-free driven roller according to claim 1, characterized in that: The cylinder (1) is made of alloy steel.

10. The rubber-free driven roller according to claim 6, characterized in that: The sealing packing (9) is made of polytetrafluoroethylene material.

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