A conveying chain support roller for a chain conveyor

Abstract

The utility model relates to the technical field of chain conveyer, and specifically discloses a conveying chain supporting wheel for chain conveyer, which comprises an axle, two wear-resistant bushings are arranged outside the axle, a fixed shaft sleeve is arranged outside the wear-resistant bushings, a wheel body is arranged outside the fixed shaft sleeve, a fixed seat is arranged at the end of the wheel body, a third O-shaped ring is arranged between the fixed shaft sleeve and the wheel body, a first O-shaped ring is arranged between the axle and the fixed seat, a floating sealing ring is arranged between the wheel body and the fixed seat, and a second O-shaped ring is arranged on the surface of the floating sealing ring. The utility model is provided with a floating sealing ring at the end of the shaft, which cooperates with the inner and outer O-shaped ring sealing structures, and the outer part is sealed and fixed by the left sealing fixed seat and the right sealing fixed seat, so that a sealing form of floating and labyrinth sealing is formed, the wheel body is isolated from the outside, multiple sealing is realized, the sealing effect is excellent, and the full sealing requirement of the chain supporting wheel is met.

Description

Technical Field

[0001] This utility model relates to the field of chain conveyor technology, and in particular to a conveyor chain support roller for a chain conveyor. Background Technology

[0002] Chain conveyors are a type of continuous conveying equipment widely used in industries such as metallurgy, mining, and building materials. When conveying heavy, large, or highly impactful materials, chain conveyor belts are equipped with support rollers on both sides of the frame. These support rollers support the chain, reduce working resistance, and ensure the smooth operation of the chain.

[0003] The support rollers directly contact the bottom of the chain plate, using rolling friction instead of sliding friction to distribute the weight of the chain plate and the material, preventing the chain plate from deforming or breaking due to long-term load.

[0004] Track rollers are typically made of high-strength alloy steel or wear-resistant cast steel, with the surface heat-treated to enhance hardness. They mostly use self-aligning roller bearings and require regular lubrication to reduce friction loss. In addition, track rollers use sealing rings for good sealing, but the sealing effect of a single sealing ring is limited and cannot effectively isolate metal or ore powder. Summary of the Invention

[0005] The purpose of this utility model is to provide a conveyor chain support roller for a chain conveyor. By setting a floating sealing ring at the shaft end in conjunction with an inner and outer O-ring sealing structure, and sealing and fixing the outside through a left sealing fixing seat and a right sealing fixing seat, a floating plus labyrinth seal can be formed. The inner and outer parts of the roller body are isolated from each other, achieving multiple seals with excellent sealing effect, meeting the full sealing requirements of the chain support roller, and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a conveyor chain support roller for a chain conveyor, comprising a wheel axle, two wear-resistant bushings sleeved on the outside of the wheel axle, a washer disposed between the two wear-resistant bushings, a fixed bushing disposed on the outside of the wear-resistant bushings, a wheel body disposed on the outside of the fixed bushing, a fixed seat disposed at the end of the wheel body, a third O-ring disposed between the fixed bushing and the wheel body, a first O-ring disposed between the wheel axle and the fixed seat, and a floating sealing ring disposed between the wheel body and the fixed seat, wherein a second O-ring is sleeved on the surface of the floating sealing ring;

[0007] The fixed bushing includes a left fixed bushing and a right fixed bushing that are disposed opposite to each other;

[0008] The wheel body includes a left wheel body and a right wheel body arranged opposite to each other;

[0009] The fixing base includes a left sealing fixing base and a right sealing fixing base arranged opposite to each other.

[0010] Preferably, a left fixed bushing and a left wheel body are arranged sequentially from the inside to the outside on the left side of the axle, and the left fixed bushing and the left wheel body are fixed together by bolts.

[0011] Preferably, a right fixed bushing and a right wheel body are arranged sequentially from the inside to the outside on the right side of the axle, and the right fixed bushing and the right wheel body are fixed together by bolts.

[0012] Preferably, the left sealing fixing seat is installed at the left end of the left wheel body, and the right sealing fixing seat is installed at the right end of the right wheel body.

[0013] Preferably, the wear-resistant bushing is a nylon bushing, wherein one set of the wear-resistant bushing is sandwiched between the wheel axle and the left fixed bushing, and the other set of the wear-resistant bushing is sandwiched between the wheel axle and the right fixed bushing.

[0014] Preferably, a support roller mounting bracket is provided on the outer side of the fixed base, and the left sealing fixed base and the right sealing fixed base are fixedly connected to the support roller mounting bracket by bolts.

[0015] Preferably, a frame beam is welded to the bottom of the support roller mounting bracket, and a steel structure support is provided below the frame beam.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting a floating sealing ring at the end of the shaft in conjunction with the inner and outer O-ring sealing structure, and sealing and fixing the outside through the left and right sealing fixing seats, a floating plus labyrinth seal sealing form can be formed. The inner and outer parts of the wheel body are isolated from each other, achieving multiple seals with excellent sealing effect, which meets the full sealing requirements of chain-driven heavy rollers.

[0018] 2. By adding a wear-resistant bushing between the wheel body and the axle, a self-lubricating effect can be achieved. During use, there is no need to add lubricating oil again to meet the normal lubrication of the wheel body and the axle, which greatly reduces the amount of daily operation and maintenance. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall structural view of the present invention;

[0021] Figure 2This is a schematic diagram of a half-section of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure during installation of this utility model;

[0023] Figure 4 This is a side view of the structure of the present invention during installation;

[0024] Figure 5 For the present utility model Figure 3 Enlarged view of A in the middle;

[0025] Figure 6 This is a schematic diagram of the overall structure of the chain conveyor of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Right sealing seat; 2. Right wheel body; 3. Wear-resistant bushing; 4. Right fixed bushing; 5. Washer; 6. Left fixed bushing; 7. Left wheel body; 8. Left sealing seat; 9. Wheel axle; 10. First O-ring; 11. Floating sealing ring; 12. Second O-ring; 13. Third O-ring; 14. Frame beam; 15. Steel structure support; 16. Support roller mounting bracket. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides a technical solution:

[0030] Please see Figures 1 to 6 A conveyor chain support roller for a chain conveyor includes a wheel axle 9, two wear-resistant bushings 3 are sleeved on the outside of the wheel axle 9, a washer 5 is provided between the two wear-resistant bushings 3, a fixed bushing is provided on the outside of the wear-resistant bushings 3, a wheel body is provided on the outside of the fixed bushing, a fixed seat is provided at the end of the wheel body, a third O-ring 13 is provided between the fixed bushing and the wheel body, a first O-ring 10 is provided between the wheel axle 9 and the fixed seat, and a floating sealing ring 11 is provided between the wheel body and the fixed seat, and a second O-ring 12 is sleeved on the surface of the floating sealing ring 11;

[0031] The fixed bushings include a left fixed bushing 6 and a right fixed bushing 4 that are arranged opposite to each other;

[0032] The wheel body includes a left wheel body 7 and a right wheel body 2 that are arranged opposite to each other;

[0033] The fixing base includes a left sealing fixing base 8 and a right sealing fixing base 1 arranged opposite to each other.

[0034] On the outer left side of the axle 9, a left fixed bushing 6 and a left wheel body 7 are arranged sequentially from the inside to the outside, and the left fixed bushing 6 and the left wheel body 7 are fixed together by bolts.

[0035] On the outer right side of the axle 9, from the inside out, a right fixed bushing 4 and a right wheel body 2 are arranged in sequence, and the right fixed bushing 4 and the right wheel body 2 are fixed together by bolts.

[0036] The left sealing fixing seat 8 is installed at the left end of the left wheel body 7, and the right sealing fixing seat 1 is installed at the right end of the right wheel body 2.

[0037] By adopting the above technical solution, a first O-ring 10 is set at the fixed shaft sleeve end. The first O-ring 10 can seal the gap between the wheel axle 9 and the fixed seat. After sealing, a floating sealing ring 11 and a second O-ring 12 are used to perform a secondary seal between the wheel body and the fixed seat. Finally, the left sealing fixed seat 8 and the right sealing fixed seat 1 are installed to form a multi-seal structure. This sealing method can isolate the dust generated by most working conditions in the industry, forming a fully sealed structure. This avoids the wear of the internal structure of the wheel body by the dust medium, greatly increasing the service life of the chain-driven heavy roller. Even if a small leak occurs in one layer of sealing rings, other sealing rings can play a supplementary role. The floating sealing ring 11, which plays an auxiliary sealing role, further enhances the sealing effect. By setting a floating sealing ring 11 at the shaft end in conjunction with the inner and outer O-ring sealing structure, and sealing and fixing the outside through the left sealing fixed seat 8 and the right sealing fixed seat 1, a floating plus labyrinth seal sealing form can be formed. The inner and outer parts of the wheel body are isolated from each other, achieving multiple seals with excellent sealing effect, meeting the full sealing requirements of the chain-driven heavy roller.

[0038] Specifically, such as Figures 2 to 5 As shown, the wear-resistant bushing 3 is a nylon bushing. One set of wear-resistant bushings 3 is sandwiched between the wheel axle 9 and the left fixed bushing 6, and the other set of wear-resistant bushings 3 is sandwiched between the wheel axle 9 and the right fixed bushing 4. The wear-resistant bushings 3 are made of nylon. During the manufacturing process of the nylon bushings, a small amount of solid lubricant such as graphite, molybdenum disulfide or PTFE is embedded. During the sliding process, these lubricants are gradually released to the contact surface to form a lubricating film, thereby reducing friction and wear. Since the nylon material itself has a low coefficient of friction and a smooth and hard surface, the nylon bushing can maintain smooth operation in an oil-free or low-oil environment, further reducing friction and wear. This self-lubricating mechanism does not require the addition of additional lubricating oil, reducing maintenance costs.

[0039] A support roller mounting bracket 16 is provided on the outside of the fixed seat. The left sealing fixed seat 8 and the right sealing fixed seat 1 are fixedly connected to the support roller mounting bracket 16 by bolts.

[0040] The bottom of the support roller mounting bracket 16 is welded with a frame beam 14, and a steel structure support 15 is provided below the frame beam 14. The frame longitudinal beam is welded below the frame beam 14 and is directly welded to the steel structure support 15 for the foundation support of the chain conveyor.

[0041] By adopting the above technical solution, the sprocket assembly is in direct contact with the wheel body, and a wear-resistant bushing 3 is added between the wheel body and the axle 9. When the chain conveyor is in use, since the wheel body and the axle 9 form an independent structure, they form self-lubrication through the wear-resistant bushing 3 during operation, eliminating the need for secondary lubrication. This greatly reduces the amount of daily maintenance. The force can be directly transmitted to the axle 9 through the wheel body, with direct rigid contact inside, improving impact resistance. By adding the wear-resistant bushing 3 between the wheel body and the axle 9, a self-lubricating effect can be achieved. During use, the normal lubrication of the wheel body and the axle 9 can be met without secondary lubrication, greatly reducing the amount of daily maintenance.

[0042] Working principle: The sprocket assembly is in direct contact with the wheel body. A wear-resistant bushing 3 is added between the wheel body and the axle 9. When the chain conveyor is in use, since the wheel body and the axle 9 form an independent structure, they are self-lubricated by the wear-resistant bushing 3 during operation, eliminating the need for secondary lubrication. A first O-ring 10 is installed at the fixed shaft sleeve end, which seals the axle 9 and the fixed seat. After sealing, a floating sealing ring 11 and a second O-ring 12 provide a secondary seal between the wheel body and the fixed seat. Finally, the left sealing fixed seat 8 and the right sealing fixed seat 1 are installed to form a multi-seal structure. This sealing method can isolate most of the dust generated in the industry, forming a fully sealed structure. This avoids the wear of the internal structure of the wheel body by dust media, greatly increasing the service life of the chain conveyor. Even if a small leak occurs in one layer of sealing rings, other sealing rings can play a supplementary role. The floating sealing ring 11, which plays an auxiliary sealing role, further enhances the sealing effect.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support roller for a chain conveyor, comprising an axle (9), characterized in that: Two wear-resistant bushings (3) are fitted on the outside of the axle (9), and a washer (5) is provided between the two wear-resistant bushings (3). A fixed bushing is provided on the outside of the wear-resistant bushings (3), and a wheel body is provided on the outside of the fixed bushing. A fixed seat is provided at the end of the wheel body. A third O-ring (13) is provided between the fixed bushing and the wheel body. A first O-ring (10) is provided between the axle (9) and the fixed seat. A floating sealing ring (11) is provided between the wheel body and the fixed seat, and a second O-ring (12) is fitted on the surface of the floating sealing ring (11). The fixed bushing includes a left fixed bushing (6) and a right fixed bushing (4) that are disposed opposite to each other. The wheel body includes a left wheel body (7) and a right wheel body (2) arranged opposite to each other; The fixing seat includes a left sealing fixing seat (8) and a right sealing fixing seat (1) arranged opposite to each other.

2. The support roller for a chain conveyor as described in claim 1, characterized in that: The left fixed bushing (6) and the left wheel body (7) are arranged sequentially from the inside to the outside on the left side of the axle (9), and the left fixed bushing (6) and the left wheel body (7) are fixed together by bolts.

3. A support roller for a chain conveyor as described in claim 2, characterized in that: The right fixed bushing (4) and the right wheel body (2) are arranged sequentially from the inside to the outside on the right side of the axle (9), and the right fixed bushing (4) and the right wheel body (2) are fixed together by bolts.

4. A support roller for a chain conveyor according to claim 3, characterized in that: The left sealing fixing seat (8) is installed on the left end of the left wheel body (7), and the right sealing fixing seat (1) is installed on the right end of the right wheel body (2).

5. A support roller for a chain conveyor according to claim 4, characterized in that: The wear-resistant bushing (3) is a nylon bushing. One set of the wear-resistant bushing (3) is sandwiched between the wheel axle (9) and the left fixed bushing (6), and the other set of the wear-resistant bushing (3) is sandwiched between the wheel axle (9) and the right fixed bushing (4).

6. A support roller for a chain conveyor according to claim 5, characterized in that: A support roller mounting bracket (16) is provided on the outer side of the fixed seat, and the left sealing fixed seat (8) and the right sealing fixed seat (1) are fixedly connected to the support roller mounting bracket (16) by bolts.

7. A support roller for a chain conveyor according to claim 6, characterized in that: The bottom of the support roller mounting bracket (16) is welded with a frame beam (14), and a steel structure bracket (15) is provided below the frame beam (14).

Images