Sealing device for two ends of coal mine belt conveyor carrier roller

Abstract

The utility model relates to the technical field of belt conveyor carrier rollers, and discloses a sealing device for two ends of a coal mine belt conveyor carrier roller, which solves the problem of poor sealing effect of the existing belt conveyor carrier roller, and comprises a bearing seat, an inner bearing, an inner support disc, an auxiliary sealing element, an outer bearing, an outer support disc, an end gland and sealing filler, the bearing seats are fixedly connected to the two ends of the inner surface of the roller, the inner bearing, the outer bearing and the sealing filler are all connected between the bearing seats and the carrier roller center shaft, the inner supporting disc and the outer supporting disc are both fixedly connected to the inner surfaces of the bearing seats, and the auxiliary sealing piece is fixedly connected to the side, close to the outer bearing, of the inner supporting disc. The end glands are fixedly connected to the two ends of the roller, and the sealing filler is located among the outer supporting disc, the end glands and the bearing seats. By means of the sealing device, multiple sealing of the belt conveyor carrier roller can be achieved, and the sealing effect is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyor rollers, in particular to a sealing device at both ends of a coal mine belt conveyor roller. Background Art

[0002] The idler is one of the main components of the belt conveyor, which is used to provide auxiliary support for the belt and improve the stability and service life of the belt conveying process. The idler of the belt conveyor needs to be sealed at both ends when in use, especially when used for coal mine transportation. A large amount of dust will be generated during the belt conveyor transportation process. If the dust enters the inside of the idler, it will cause wear of the bearing and affect the lubrication of the bearing, causing damage to the bearing, and then causing the idler to fail to work normally. Therefore, the present application proposes a sealing device at both ends of the idler of a coal mine belt conveyor to improve the sealing performance of both ends of the idler. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a sealing device for both ends of a coal mine belt conveyor roller, which effectively solves the problem of poor sealing effect of the existing belt conveyor roller.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device at both ends of a coal mine belt conveyor roller, comprising a bearing seat, an inner bearing, an inner support plate, an auxiliary seal, an outer bearing, an outer support plate, an end pressure cover and a sealing filler, wherein the bearing seat is fixedly connected to both ends of the inner surface of the roller, the inner bearing, the outer bearing and the sealing filler are all connected between the bearing seat and the center axis of the roller, the inner support plate and the outer support plate are both fixedly connected to the inner surface of the bearing seat, the auxiliary seal is fixedly connected to the side of the inner support plate close to the outer bearing, the end pressure cover is fixedly connected to both ends of the roller, and the sealing filler is located between the outer support plate, the end pressure cover and the bearing seat.

[0005] Preferably, the inner support plate and the outer support plate are both composed of a plate body and a rubber sealing ring, the rubber sealing ring is connected between the plate body and the bearing seat, and the plate body is connected to the bearing seat through bolt 1.

[0006] Preferably, a through hole 1 is opened at the center of the disc body, and the inner diameter of the through hole 1 is larger than the outer diameter of the central axis of the roller.

[0007] Preferably, the auxiliary seal is composed of a connecting ring, a first rubber sealing sleeve, a second rubber sealing sleeve and a third rubber sealing sleeve. The connecting ring is fixedly connected to the inner support plate by bolt 2. The first rubber sealing sleeve, the second rubber sealing sleeve and the third rubber sealing sleeve are all fixedly connected to the side of the connecting ring away from the inner support plate. The first rubber sealing sleeve, the second rubber sealing sleeve and the third rubber sealing sleeve are all sleeved on the central axis of the roller and fitly connected thereto.

[0008] Preferably, the end gland is fixedly connected to the roller via bolt three, and a through hole two is provided at the center of the end gland, and the inner diameter of the through hole two is larger than the outer diameter of the central axis of the roller.

[0009] Preferably, a plurality of oil filling pipes are inserted through the side of the end gland away from the sealing filler, and a sealing cover is provided at one end of the oil filling pipe, which is threadedly connected to the oil filling pipe.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) During operation, a double-bearing connection can be achieved by arranging a bearing seat, an inner bearing, an inner support plate, an auxiliary seal, an outer bearing, an outer support plate, an end gland and a sealing packing. When one of the bearings is damaged, the other bearing can also play a movable supporting role, so that the roller can work for a short time. The end gland and the sealing packing can achieve packing sealing, effectively improving the sealing effect, thereby improving the dustproof effect;

[0012] (2) By setting up an auxiliary seal consisting of a connecting ring, a first rubber sealing sleeve, a second rubber sealing sleeve and a third rubber sealing sleeve, a secondary sealing effect can be achieved, further improving the sealing effect. Through the oil filling pipe and the sealing cover, lubricating oil can be regularly filled into the interior of the sealing packing. During the working process, an oil film can be formed between the sealing packing and the central axis of the roller, and the oil film can improve the lubrication effect and the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached figure:

[0015] Figure 1 This is one of the structural schematic diagrams of the sealing device at both ends of the roller of the coal mine belt conveyor of the utility model;

[0016] Figure 2 This is the second structural diagram of the sealing device at both ends of the roller of the coal mine belt conveyor of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the inner support plate and the auxiliary sealing member of the utility model;

[0018] Figure 4 This is a schematic diagram of the end gland structure of the utility model;

[0019] In the figure: 1. Bearing seat; 2. Inner bearing; 3. Inner support plate; 4. Auxiliary seal; 5. Outer bearing; 6. Outer support plate; 7. End gland; 8. Sealing filler; 9. Roller; 10. Roller center shaft; 11. Plate body; 12. Rubber sealing ring; 13. Bolt 1; 14. Through hole 1; 15. Connecting ring; 16. First rubber sealing sleeve; 17. Second rubber sealing sleeve; 18. Third rubber sealing sleeve; 19. Bolt 2; 20. Bolt 3; 21. Through hole 2; 22. Oil filling pipe; 23. Sealing cover. DETAILED DESCRIPTION

[0020] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Depend on Figure 1 and Figure 2 The utility model provides a sealing device at both ends of a coal mine belt conveyor roller, comprising a bearing seat 1, an inner bearing 2, an inner support plate 3, an auxiliary seal 4, an outer bearing 5, an outer support plate 6, an end pressure cover 7 and a sealing filler 8. The bearing seat 1 is fixedly connected to both ends of the inner surface of the roller 9, the inner bearing 2, the outer bearing 5 and the sealing filler 8 are all connected between the bearing seat 1 and the roller center axis 10, the inner support plate 3 and the outer support plate 6 are both fixedly connected to the inner surface of the bearing seat 1, the auxiliary seal 4 is fixedly connected to the side of the inner support plate 3 close to the outer bearing 5, the end pressure cover 7 is fixedly connected to both ends of the roller 9, and the sealing filler 8 is located between the outer support plate 6, the end pressure cover 7 and the bearing seat 1;

[0022] When in use, dual bearing support is achieved through the inner bearing 2 and the outer bearing 5. When one of the bearings is damaged, the roller will not stop working. The first-level sealing effect is achieved through the sealing filler 8, and the second-level sealing effect is achieved through the auxiliary seal 4.

[0023] Depend on Figures 1 to 3 It is shown that the inner support plate 3 and the outer support plate 6 are both composed of a plate body 11 and a rubber sealing ring 12. The rubber sealing ring 12 is connected between the plate body 11 and the bearing seat 1. The plate body 11 is connected to the bearing seat 1 through a bolt 13. A through hole 14 is opened at the center of the plate body 11. The inner diameter of the through hole 14 is larger than the outer diameter of the central axis 10 of the roller.

[0024] The rubber sealing ring 12 can improve the sealing performance of the connection between the disc body 11 and the bearing seat 1. The inner diameter of the through hole 14 is larger than the outer diameter of the roller center shaft 10, which can prevent friction between the disc body 11 and the roller center shaft 10.

[0025] Depend on Figure 2 and Figure 3 It is given that the auxiliary seal 4 is composed of a connecting ring 15, a first rubber sealing sleeve 16, a second rubber sealing sleeve 17 and a third rubber sealing sleeve 18. The connecting ring 15 is fixedly connected to the inner support plate 3 by a second bolt 19. The first rubber sealing sleeve 16, the second rubber sealing sleeve 17 and the third rubber sealing sleeve 18 are all fixedly connected to the side of the connecting ring 15 away from the inner support plate 3. The first rubber sealing sleeve 16, the second rubber sealing sleeve 17 and the third rubber sealing sleeve 18 are all sleeved on the central axis 10 of the roller and are tightly connected thereto.

[0026] The first rubber sealing sleeve 16, the second rubber sealing sleeve 17 and the third rubber sealing sleeve 18 are in contact with the surface of the central shaft 10 of the roller to form a sliding seal, thereby further improving the dustproof effect;

[0027] Depend on Figure 1 、 Figure 2 and Figure 4 The end gland 7 is fixedly connected to the roller 9 by a third bolt 20. A second through-hole 21 is provided at the center of the end gland 7. The inner diameter of the second through-hole 21 is larger than the outer diameter of the central axis 10 of the roller. A plurality of oil injection pipes 22 are inserted through the side of the end gland 7 away from the sealing packing 8. A sealing cap 23 is provided at one end of the oil injection pipe 22. The sealing cap 23 is threadedly connected to the oil injection pipe 22.

[0028] The inner diameter of the through hole 21 is larger than the outer diameter of the roller center shaft 10, which can avoid friction between the end cover 7 and the roller center shaft 10. The oil filling pipe 22 can regularly inject lubricating oil into the sealing packing 8, so that an oil film is formed between the sealing packing 8 and the roller center shaft 10. The oil film can improve the sealing and lubrication effects.

[0029] During operation, a double-bearing connection can be achieved by providing a bearing seat, an inner bearing, an inner support plate, an auxiliary seal, an outer bearing, an outer support plate, an end pressure cover and a sealing filler. When one of the bearings is damaged, the other bearing can also play a movable supporting role, so that the roller can work for a short time. The packing seal can be achieved by the end pressure cover and the sealing filler, which effectively improves the sealing effect and thus improves the dustproof effect; by providing an auxiliary seal composed of a connecting ring, a first rubber sealing sleeve, a second rubber sealing sleeve and a third rubber sealing sleeve, a secondary sealing effect can be achieved, and the sealing effect is further improved. Lubricating oil can be regularly filled into the interior of the sealing filler through the oil filling pipe and the sealing cover. During the working process, an oil film can be formed between the sealing filler and the center axis of the roller, and the oil film can improve the lubrication effect and the sealing effect.

Claims

1. A sealing device for both ends of a coal mine belt conveyor roller, comprising a bearing seat (1), an inner bearing (2), an inner support plate (3), an auxiliary seal (4), an outer bearing (5), an outer support plate (6), an end gland (7) and a sealing filler (8), characterized in that: The bearing seat (1) is fixedly connected to both ends of the inner surface of the roller (9), the inner bearing (2), the outer bearing (5) and the sealing filler (8) are all connected between the bearing seat (1) and the central axis (10) of the roller, the inner support plate (3) and the outer support plate (6) are both fixedly connected to the inner surface of the bearing seat (1), the auxiliary seal (4) is fixedly connected to the side of the inner support plate (3) close to the outer bearing (5), the end pressure cover (7) is fixedly connected to both ends of the roller (9), and the sealing filler (8) is located between the outer support plate (6), the end pressure cover (7) and the bearing seat (1).

2. The sealing device for both ends of a coal mine belt conveyor roller according to claim 1, characterized in that: The inner support disc (3) and the outer support disc (6) are both composed of a disc body (11) and a rubber sealing ring (12). The rubber sealing ring (12) is connected between the disc body (11) and the bearing seat (1). The disc body (11) is connected to the bearing seat (1) via a bolt (13).

3. The sealing device for both ends of a coal mine belt conveyor roller according to claim 2, characterized in that: A through hole (14) is provided at the center of the disk body (11), and the inner diameter of the through hole (14) is larger than the outer diameter of the central axis (10) of the roller.

4. The sealing device for both ends of a coal mine belt conveyor roller according to claim 1, characterized in that: The auxiliary seal (4) is composed of a connecting ring (15), a first rubber sealing sleeve (16), a second rubber sealing sleeve (17) and a third rubber sealing sleeve (18). The connecting ring (15) is fixedly connected to the inner support plate (3) through a second bolt (19). The first rubber sealing sleeve (16), the second rubber sealing sleeve (17) and the third rubber sealing sleeve (18) are all fixedly connected to the side of the connecting ring (15) away from the inner support plate (3). The first rubber sealing sleeve (16), the second rubber sealing sleeve (17) and the third rubber sealing sleeve (18) are all sleeved on the central axis (10) of the roller and are closely connected thereto.

5. The sealing device for both ends of a coal mine belt conveyor roller according to claim 1, characterized in that: The end gland (7) is fixedly connected to the roller (9) via a third bolt (20). A second through hole (21) is provided at the center of the end gland (7). The inner diameter of the second through hole (21) is larger than the outer diameter of the central axis (10) of the roller.

6. The sealing device for both ends of a coal mine belt conveyor roller according to claim 1, characterized in that: A plurality of oil injection pipes (22) are inserted through the side of the end gland (7) away from the sealing filler (8), and a sealing cap (23) is provided at one end of the oil injection pipe (22), and the sealing cap (23) is threadedly connected to the oil injection pipe (22).

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