Redirection device of bucket elevator

Abstract

The utility model discloses a bucket elevator redirection device which comprises a main shaft, the main shaft is sequentially sleeved with a first fixed clamping plate, a shaft sleeve, a movable clamping plate, a spring and a second fixed clamping plate in the axial direction, the first fixed clamping plate is fixedly connected with the main shaft, the inner wall of the shaft sleeve is in clearance fit with the surface of the main shaft, and the movable clamping plate is movably connected with the main shaft. The spring is movably connected with the main shaft, the second fixing clamping plate is fixedly connected with the main shaft, the shaft sleeve is sleeved with a roller, the inner wall of the roller is in clearance fit with the outer wall of the shaft sleeve, a first spiral groove is formed in the inner wall of the shaft sleeve, and the rotating direction of the first spiral groove is the same as the rotating direction of the roller during working. The spiral groove is formed in the inner wall of the shaft sleeve, fine materials between the shaft sleeve and the main shaft are discharged out of the shaft sleeve through the spiral groove, the abrasion or jamming phenomenon caused by the fact that the materials enter the shaft and the shaft sleeve and cannot be discharged in time is reduced, the service life of equipment is prolonged, and the operation cost is reduced.

Description

Technical Field:

[0001] The utility model relates to the technical field of conveyor equipment, and particularly relates to a redirecting device for a bucket elevator. Background Art:

[0002] A bucket elevator is a device for vertically lifting and conveying materials. It includes a device in which a plurality of hoppers are connected to a conveyor chain through rollers. When the device is working, the materials are scooped up by the hoppers or directly fall into the hoppers and are transported upward. When the hoppers filled with materials reach the top of the elevator, the traction mechanism moves downward in the reverse direction and drives the hoppers in the reverse direction so that the materials filled in the hoppers are thrown out.

[0003] At present, the redirecting rollers of bucket elevators operating in closed and muddy environments such as underground mines and boiler rooms are not conducive to transmission through bearings. Therefore, redirecting rollers without bearings are adopted. Since the rollers are directly supported by the surface contact between the bushing and the main shaft, fine materials and mud enter between the main shaft, the bushing and the rollers during operation, resulting in serious wear between the main shaft, the bushing and the rollers. The inner diameter of the rollers is worn larger, and the whole set of rollers needs to be frequently replaced, increasing the operation cost. In addition, when fine materials enter between the main shaft, the bushing and the rollers during the operation of the bucket elevator, it will also cause an increase in the rotational resistance of the rollers or jamming and inability to rotate, resulting in an increase in the operating power of the equipment. In severe cases, the equipment will directly trip due to the jamming of the rollers, affecting the work efficiency. Content of the Utility Model:

[0004] In view of this, the purpose of the utility model is to provide a redirecting device for a bucket elevator to solve the technical problems existing in the above-mentioned prior art.

[0005] The purpose of the utility model is implemented by the following technical solution: A redirecting device for a bucket elevator includes a main shaft. It is characterized in that a first fixed clamping plate, a bushing, a movable clamping plate, a spring and a second fixed clamping plate are sequentially sleeved on the main shaft along the axial direction. The first fixed clamping plate is fixedly connected to the main shaft. The inner wall of the bushing is in clearance fit with the surface of the main shaft. The movable clamping plate is movably connected to the main shaft. The spring is movably connected to the main shaft. The second fixed clamping plate is fixedly connected to the main shaft. A roller is sleeved on the bushing. The inner wall of the roller is in clearance fit with the outer wall of the bushing.

[0006] A first spiral groove is opened on the inner wall of the bushing. The spiral direction of the first spiral groove is the same as the rotation direction of the roller during operation.

[0007] Further, a second spiral groove is opened on the inner wall of the roller. The spiral direction of the second spiral groove is the same as the rotation direction of the roller during operation.

[0008] Further, the first fixed clamping plate and the movable clamping plate are circular plates, and their diameters are larger than the diameter of the second spiral groove.

[0009] Furthermore, one end of the spring is fixed on the movable clamping plate, and the other end of the spring is fixed on the second fixed clamping plate.

[0010] Advantages of the utility model:

[0011] Spiral grooves are arranged on the inner walls of the bushing and the roller. During the operation of the roller, fine particles entering between the roller and the bushing, and between the bushing and the main shaft are discharged by the spiral grooves, thereby reducing the degree of wear between the roller, the bushing and the main shaft, and increasing the service life of the whole equipment. At the same time, the phenomenon of the roller being stuck and unable to rotate is greatly reduced, and the failure rate caused by increased load and excessive current due to the non-rotation of the roller is reduced, thereby reducing the cost of manpower and material resources. Description of the drawings:

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of the structure of the utility model;

[0014] Figure 2 A schematic diagram of the cross-sectional structure of the roller shaft of the utility model.

[0015] In the figure: 1, main shaft; 2, sleeve; 21, first spiral groove; 3, roller; 31, second spiral groove; 4, first fixed clamping plate; 5, movable clamping plate; 6, second fixed clamping plate; 7, spring. Specific implementation method:

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0018] The present utility model will be further described below with reference to the drawings:

[0019] As Figure 1-2 shown, a redirecting device for a bucket elevator includes a main shaft 1. Along the axial direction of the main shaft 1, a first fixed clamping plate 4, a bushing 2, a movable clamping plate 5, a spring 7 and a second fixed clamping plate 6 are sequentially sleeved. The first fixed clamping plate 4 is fixedly connected to the main shaft 1. The first fixed clamping plate 4 can be fixed by means of a pin shaft or welding, etc., or can also be an integral molding structure with the main shaft 2. The inner wall of the bushing 2 is in clearance fit with the surface of the main shaft 1. The movable clamping plate 5 is movably connected to the main shaft 1. The spring 7 is movably connected to the main shaft 1. The second fixed clamping plate 6 is fixedly connected to the main shaft 1. The second fixed clamping plate 6 can be detachably connected to the main shaft 2 by means of a pin shaft, etc., which is convenient for the later replacement of the roller 3 and the bushing 2. A roller 3 is sleeved on the bushing 2. The inner wall of the roller 3 is in clearance fit with the outer wall of the bushing 2. A first spiral groove 21 is formed on the inner wall of the bushing 2. The spiral direction of the first spiral groove 21 is the same as the rotation direction of the roller 3 during operation.

[0020] The first fixed clamping plate 4 and the movable clamping plate 5 are circular plates, and their diameters are larger than the diameter of the second spiral groove 31. The first fixed clamping plate 4 and the movable clamping plate 5 are respectively in contact with both ends of the roller, reducing the entry of fine materials into the gaps between the roller 3 and the bushing 2 and between the bushing 2 and the main shaft 1, so as not to affect the rotation of the roller 3.

[0021] In this embodiment, when the bucket elevator is running, the driving roller 2 relies on the relative rotation of the main shaft 1, the bushing 2 in the roller 3 and the roller 3 without the assistance of a bearing, reducing the rotation of a single shaft. The bushing 2 plays a role in assisting the rotation without a bearing. When fine materials entering between the main shaft 1 and the bushing 2 are sent to one end of the bushing 2 along the spiral direction through the first spiral groove 21 and accumulate a certain amount of materials, the movable clamping plate 5 will be pushed open. The movable clamping plate 5 moves axially and compresses the spring 7. After the fine materials are sent out of the bushing 2, the spring 7 returns to its natural state and pushes the movable clamping plate 5 back to its original position, thereby cleaning the fine materials entering between the main shaft 1 and the bushing 2 and preventing the accumulation of materials from affecting the normal rotation of the roller 3.

[0022] As a preferred embodiment, a second helical groove 31 is formed in the inner wall of the roller 3, and the helix direction of the second helical groove 31 is the same as the rotation direction of the roller 3 during operation. Similarly, when the roller 3 and the bushing 2 rotate relative to each other, the fine materials entering will accumulate to a certain extent and affect the normal rotation of the roller 3. By providing the second helical groove 31 on the inner wall of the roller 3, the fine materials accumulate along the rotation direction of the roller 3 during operation to one end of the roller 3 in the axial direction. When a certain amount of materials accumulates, the movable clamping plate 5 will be pushed open. The movable clamping plate 5 moves axially and compresses the spring 7. After the fine materials are sent out of the roller 3, the spring 7 returns to its natural state and pushes the movable clamping plate 5 back to its original position, thereby cleaning the fine materials entering between the roller 3 and the bushing 2 and preventing the material accumulation from affecting the normal rotation of the roller 3.

[0023] One end of the spring 7 is fixed on the movable clamping plate 5, and the other end is fixed on the second fixed clamping plate 6.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bucket elevator redirection device, comprising a main shaft, characterized in that: The main shaft is sleeved with a first fixed clamping plate, a sleeve, a movable clamping plate, a spring and a second fixed clamping plate in sequence along the axial direction, the first fixed clamping plate is fixedly connected to the main shaft, the inner wall of the sleeve is in clearance with the surface of the main shaft, the movable clamping plate is movably connected to the main shaft, the spring is movably connected to the main shaft, and the second fixed clamping plate is fixedly connected to the main shaft; a roller is sleeved on the sleeve, the inner wall of the roller is in clearance with the outer wall of the sleeve, A first spiral groove is formed on the inner wall of the shaft sleeve, and the rotation direction of the first spiral groove is the same as the rotation direction of the roller when it is working.

2. A bucket elevator redirection device according to claim 1, characterized in that: A second spiral groove is provided on the inner wall of the roller, and the rotation direction of the second spiral groove is the same as the rotation direction of the roller when working.

3. A bucket elevator redirection device according to claim 2, characterized in that: The first fixed clamping plate and the movable clamping plate are circular plates, and the diameters thereof are larger than the diameter of the second spiral groove.

4. A bucket elevator redirection device according to claim 3, characterized in that: One end of the spring is fixed on the movable clamping plate, and the other end of the spring is fixed on the second fixed clamping plate.

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