CN220702339U

CN220702339U - Maintenance-free roller

Info

Publication number: CN220702339U
Application number: CN202322233109.7U
Authority: CN
Inventors: 刘太岭; 谢洪路; 李伟; 刘铮; 李�浩; 周广欣
Original assignee: Shandong Menglu Mining Engineering Co ltd
Current assignee: Shandong Menglu Mining Engineering Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-04-02
Anticipated expiration: 2033-08-18

Abstract

The utility model discloses a maintenance-free roller, which relates to the technical field of roller mineral processing equipment and comprises a roller body, a roller main shaft penetrating through the roller body, a bearing arranged between the roller body and the roller main shaft, and a bearing end cover arranged at the axial end part of the roller body, wherein the bearing end cover comprises an end cover main body and a first flange arranged towards the bearing, a framework oil seal I is arranged between the end cover main body and the roller main shaft, a framework oil seal II is arranged between the first flange and the roller main shaft, and lubricating grease is filled between the framework oil seal I and the framework oil seal II. The utility model solves the technical problem that the roller in the prior art needs to be maintained regularly, and improves the running time and the production efficiency of equipment.

Description

Maintenance-free roller

Technical Field

The utility model relates to the technical field of roller mineral processing equipment, in particular to a maintenance-free roller.

Background

With the rapid development of economy, the science and technology level has increased significantly in recent years, especially at the level of mechanization, which brings about great changes to the drum structure, the processing and the assembly process. During the drum design process, more and more designers are paying attention to maintenance-free and maintenance-free effects.

The roller is an important part and component part of a belt conveyor system, and the roller of the belt conveyor for the coal mine is an indispensable part in the aspect of coal mine transportation. In the coal mine transportation process, the roller at the lower end of the belt conveyor is often soaked in a mixture of water, coal slime and the like for a long time, and the environment is extremely severe, so that the roller is required to have good sealing performance on water, coal slime, dust and the like. In the existing roller, only one O-shaped ring or felt ring is generally arranged between the bearing end covers at two ends of the roller and the rotating shaft, and in the use process, coal slime, dust and the like in the environment easily enter the bearing part through the O-shaped ring or the felt ring. In addition, due to the structure of the drum, a local high pressure is formed during the rotation of the drum, thereby increasing the actual pressure at the bearing end caps. Therefore, oil easily leaks from the bearing cap after the O-ring or the felt is worn.

Therefore, during actual use, periodic maintenance of the drum is required. The ore dressing system is in a 24-hour uninterrupted operation production mode, and the maintenance process of the roller can influence the normal production progress.

Disclosure of Invention

The maintenance-free roller solves the technical problem that the roller in the prior art needs to be maintained regularly, and improves the operation time and the production efficiency of mechanical equipment.

In order to solve the technical problems, the utility model adopts the following technical scheme that the maintenance-free roller comprises a roller body, a roller main shaft penetrating through the roller body, a bearing arranged between the roller body and the roller main shaft, and a bearing end cover arranged at the axial end part of the roller body, wherein the bearing end cover comprises an end cover main body and a first flange arranged towards the bearing, a framework oil seal I is arranged between the end cover main body and the roller main shaft, a framework oil seal II is arranged between the first flange and the roller main shaft, and lubricating grease is filled between the framework oil seal I and the framework oil seal II.

Because install skeleton oil blanket I between end cover main part and the cylinder main shaft, install skeleton oil blanket II between first flange and the cylinder main shaft, consequently have great cavity to be used for holding lubricating grease between skeleton oil blanket I and the skeleton oil blanket II. Grease is pasty, so that coal slime, dust and the like in the environment can be prevented from entering the bearing part, meanwhile, the leakage of engine oil at the bearing part from the bearing end cover is effectively avoided, and therefore, the periodic maintenance is not required in the life cycle of the bearing, and the production efficiency is improved.

Further, the bearing end cover further comprises a second flange, the first flange and the second flange are positioned on the same side of the end cover main body, and the second flange can be abutted to the outer ring of the bearing along the axial direction of the cylinder body; when the second flange abuts against the outer ring of the bearing, a cavity can be formed between the bearing end cap and the bearing for receiving oil.

Further, the roller main shaft is in interference fit with the bearing, and the end part of the roller main shaft is abutted to the inner ring of the bearing through the shaft shoulder.

Further, the bearing is a self-aligning roller bearing; whereby high radial loads can be accommodated.

Further, the bearing is arranged at the end part of the cylinder body through the bearing support, the end part of the cylinder body is provided with an inner edge, and the inner edge is fixed with the bearing support through a bolt; therefore, the bearing support and the bearing end cover can be disassembled through the corresponding bolts, and the disassembly, the assembly and the assembly are convenient.

Further, a gap is formed between the bearing support and the roller main shaft, and a framework oil seal III is arranged in the gap between the bearing support and the roller main shaft; therefore, engine oil can be contained in a gap between the bearing support and the main shaft of the roller, and the engine oil lubrication is ensured to be always carried out in the service life period of the cylinder body.

According to the technical scheme, the utility model has at least the following technical effects or advantages:

Drawings

For a clearer description of the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained, without inventive effort, by a person skilled in the art, from these drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partially enlarged schematic view of the installation place of the framework oil seal i and the framework oil seal ii.

Reference numerals illustrate: 1. barrel, 2, cylinder main shaft, 3, bearing, 4, bearing end cover, 5, first flange, 6, skeleton oil blanket I, 7, skeleton oil blanket II, 8, second flange, 9, bearing support, 10, skeleton oil blanket III.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments in this patent, other embodiments that may be obtained by one of ordinary skill in the art without making any inventive effort are within the scope of this patent.

The utility model discloses a maintenance-free roller, which comprises: a cylinder body 1, a cylinder main shaft 2 penetrating the cylinder body 1, and a bearing 3 mounted between the cylinder body 1 and the cylinder main shaft 2. In one example, the drum 1 rotates, and both ends of the drum main shaft 2 are mounted on the frame and fixed relatively. I.e. the drum spindle 2 remains stationary and the cylinder 1 rotates relative to the drum spindle 2, wherein the bearing 3 between the drum spindle 2 and the cylinder 1 can remain smooth in rotation.

The maintenance-free drum further comprises a bearing end cap 4. The bearing end cover 4 is provided with a round hole for the roller main shaft 2 to pass through, and the round hole of the bearing end cover 4 is in clearance fit with the roller main shaft 2. When the cylinder body 1 rotates relative to the cylinder main shaft 2, the bearing end cover 4 rotates synchronously with the cylinder body 1. As shown in fig. 1, the bearing end cap 4 includes an end cap body and a first flange 5 disposed toward the bearing 3 according to an embodiment of the present utility model. The round hole is formed in the middle of the end cover main body, and the first flange 5 is annular and coaxial with the round hole. This enables the gap between the bearing end cap 4 and the drum main shaft 2 to have a large dimension in the axial length. Furthermore, the first flange 5 is provided towards the bearing 3, i.e. extends towards the inside of the cylinder, thus enabling a greater length of the outer shell of the cylinder 1 in the axial direction.

Fig. 2 shows a partially enlarged schematic view of the installation place of the framework oil seal i 6 and the framework oil seal ii 7. As shown in the figure, a framework oil seal i 6 and a framework oil seal ii 7 are installed between the bearing end cover 4 and the roller main shaft 2, wherein the framework oil seal i 6 is located between the end cover main body and the roller main shaft 2, and the framework oil seal ii 7 is located between the first flange 5 and the roller main shaft 2. From this, have great cavity between skeleton oil blanket I6 and the skeleton oil blanket II 7, this cavity intussuseption is filled with the lubricating grease, and the lubricating grease is the paste, consequently can avoid coal slime, dust etc. in the environment to get into the bearing position, has effectively avoided the engine oil of bearing department to reveal from the bearing end cover simultaneously, in the life cycle of bearing like this, need not to carry out periodic maintenance.

Preferably, the bearing end cap 4 further comprises a second flange 8, the first flange 5 and the second flange 8 being located on the same side of the end cap body. After the bearing end cap 4 is fixed to the end of the cylinder 1, the second flange 8 can be abutted against the outer ring of the bearing 3 in the axial direction of the cylinder 1. A cavity can thereby be formed between the bearing end cap 4 and the bearing 3 for receiving oil.

Preferably, an interference fit is adopted between the roller main shaft 2 and the bearing 3, and the end part of the roller main shaft 2 is abutted against the inner ring of the bearing 3 through a shaft shoulder. Thus, the outer ring at one end of the bearing 3 is in contact with the second flange 8 of the bearing cap 4, and the inner ring at the other end of the bearing 3 is in contact with the shoulder of the drum main shaft 2, so that the bearing 3 can be kept fixed in the axial direction. Furthermore, the present utility model is in practice operated such that the cylinder 1 is mainly subjected to radial load, and thus, in order to secure the load-bearing capacity of the cylinder 1, the bearing 3 may be a self-aligning roller bearing.

On the other hand, the end of the cylinder 1 is provided with an inner rim which can be used to fix the bearing support 9. As shown in fig. 1, the bearing support 9 is fixed to the inner edge by bolts, the bearing end cover 4 is fixed to the bearing support 9 by bolts, and the bearing 3 is mounted in the bearing 3 seat. Therefore, the bearing support 9 and the bearing end cover 4 can be detached through corresponding bolts, and the assembly and the disassembly are convenient.

Furthermore, according to other embodiments of the present utility model, as shown in fig. 1, there is a gap between the bearing support 9 and the drum main shaft 2, and a skeleton oil seal iii 10 is installed in the gap. Therefore, the gap between the bearing support 9 and the roller main shaft 2 can also contain engine oil, so that the engine oil lubrication is better ensured all the time in the service life of the cylinder body 1, and the maintenance-free effect is achieved.

In the description of the present utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," "horizontal," and the like, if any, refer to an orientation or positional relationship based on that shown in the drawings, merely to describe the present utility model and do not require that the present utility model be constructed or operated in a particular orientation and therefore should not be construed as limiting the present utility model. "connected" and "connected" in the present utility model are to be understood broadly, and may be, for example, connected or detachably connected; the connection may be direct or indirect through intermediate members, and the specific meaning of the terms may be understood in detail by those skilled in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A maintenance-free roller comprises a roller body (1), a roller main shaft (2) penetrating through the roller body (1) and a bearing (3) arranged between the roller body (1) and the roller main shaft (2),

it is characterized in that the device also comprises a bearing end cover (4) arranged at the axial end part of the cylinder body (1),

the bearing end cover (4) comprises an end cover main body and a first flange (5) arranged towards the bearing (3), a framework oil seal I (6) is arranged between the end cover main body and the roller main shaft (2), a framework oil seal II (7) is arranged between the first flange (5) and the roller main shaft (2), and lubricating grease is filled between the framework oil seal I (6) and the framework oil seal II (7).

2. A maintenance-free drum as claimed in claim 1, characterized in that the bearing end cap (4) further comprises a second flange (8), the first flange (5) and the second flange (8) being located on the same side of the end cap body, the second flange (8) being capable of abutting against the outer ring of the bearing (3) in the axial direction of the drum (1).

3. A maintenance-free drum as claimed in claim 2, characterized in that the drum spindle (2) is in interference fit with the bearing (3), the end of the drum spindle (2) being in abutment with the inner ring of the bearing (3) by means of a shoulder.

4. A maintenance-free drum as claimed in claim 3, characterized in that the bearing (3) is a self-aligning roller bearing.

5. A maintenance-free drum according to any one of claims 1 to 4, characterized in that the bearing (3) is mounted at the end of the drum (1) by means of a bearing support (9), the end of the drum (1) being provided with an inner rim which is fixed to the bearing support (9) by means of bolts.

6. Maintenance-free roller according to claim 5, characterized in that a gap is provided between the bearing support (9) and the roller main shaft (2), and a skeleton oil seal III (10) is arranged in the gap between the bearing support (9) and the roller main shaft (2).