Upper and lower belt pressing device with cleaning function

Abstract

The utility model discloses an upper and lower pressing belt device with a cleaning function, which relates to the technical field of conveying belts and comprises an upper pressing roller used for pressing an upper belt of a conveying belt and a lower pressing piece used for pressing a lower belt of the conveying belt, the lower pressing piece is horizontally and rotatably arranged between the upper belt and the lower belt, the lower pressing piece is cylindrical, and a convex part is arranged outside the lower pressing piece. The lower pressing piece is integrally of a cam type structure, the outer portion of the lower pressing piece abuts against the inner side of the lower belt, and the axial direction of the lower pressing piece is perpendicular to the moving direction of the lower belt. Due to the arrangement of the pressing piece, the whole pressing piece is of a cam type structure, when the conveying belt works, the non-convex part of the pressing piece can limit and press the lower belt of the conveying belt, meanwhile, the convex part of the pressing piece can intermittently exert a transient vibration abutting effect on the inner side of the lower belt, and therefore the conveying belt is prevented from being damaged. And material residues and dust adhered to the lower belt are shaken off by vibration, so that a self-cleaning function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belts, and particularly relates to an upper and lower belt pressing device with a cleaning function. Background Art

[0002] The belt pressing device in the prior art generally refers to a common belt pressing wheel, which acts on the upper belt of the concave arc section of the conveyor belt to prevent the conveyor belt from floating above the idler due to tension. If the overall tight tension of the conveyor belt is too large, the lower belt of the concave arc section of the conveyor belt will also float above the idler. The occurrence of this situation will cause the lower belt to often have movement interference with the upper idler crossbeam. Currently, in response to the above situation, a solution is to add a belt pressing roller for pressing the lower belt to forcefully press down the lower belt.

[0003] In summary, the state of the conveyor belt can be represented by Figure 1 In the figure, 101 represents the upper belt of the conveyor belt, 102 represents the lower belt of the conveyor belt, 201 represents the first pressing roller for pressing the upper belt 101, and 202 represents the second pressing roller for pressing the lower belt 102.

[0004] However, under the above design structure, the upper belt works as the heavy load section for transporting materials, and the lower belt works as the return section for circulating with the upper belt to achieve the circular transportation of materials. The inventor found in practice that after the upper belt completes the transportation of materials, some material residues and dust will adhere to it. After the upper belt is converted into the lower belt, the lower belt will drive the material residues and dust to move back. If the slight vibration during this return movement cannot completely shake off the material residues and dust, the remaining material residues and dust will adhere to the conveyor belt, affecting the conveying efficiency. If the remaining material residues or dust fall on the bearings and idlers due to vibration, it will affect the service life of the bearings and idlers.

[0005] Therefore, we propose an upper and lower belt pressing device with a cleaning function to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to propose an upper and lower belt pressing device with a cleaning function to solve the problems in the prior art. The lower pressing member in this device is of a cam structure. During the use process, it can not only press the lower belt, but also generate intermittent vibration against the inner side of the lower belt, so that the material residues and dust adhering to the lower belt are shaken off, realizing the self-cleaning function.

[0007] To solve the above problems, the utility model provides the following technical solutions:

[0008] An upper and lower belt pressing device with a cleaning function includes an upper pressing roller for pressing the upper belt of the conveyor belt and a lower pressing member for pressing the lower belt of the conveyor belt. The lower pressing member is horizontally rotatably arranged between the upper belt and the lower belt. The lower pressing member is cylindrical and has a convex portion on its outer surface, so that the whole lower pressing member is configured as a cam-type structure. The outer surface of the lower pressing member is in a pressing state with the inner side of the lower belt, and the axis of the lower pressing member is perpendicular to the moving direction of the lower belt. When the lower belt drives the lower pressing member to rotate, the convex portion intermittently acts on the inner side of the lower belt.

[0009] As a further solution of the present utility model: The lower pressing member includes two groups of parallelly arranged rotating wheels and a connecting rod for connecting the two groups of rotating wheels. Both groups of rotating wheels are rotatably arranged between the upper belt and the lower belt. The connecting rod is arranged along the axial direction of the rotating wheels, and its two ends are respectively connected to the outer edges of the two groups of rotating wheels, so that the connecting rod constitutes the convex portion.

[0010] As a further solution of the present utility model: The lower pressing member is a lower pressing roller with the convex portion arranged on its outer edge, and the convex portion is arranged along the length direction of the lower pressing roller.

[0011] As a further solution of the present utility model: A plurality of the connecting rods are arranged and circumferentially arrayed between the two groups of rotating wheels.

[0012] As a further solution of the present utility model: It further includes a carrying bracket, and a first rotating shaft and a second rotating shaft are rotatably arranged on the carrying bracket. The first rotating shaft is located above the second rotating shaft. The upper pressing roller is arranged on the first rotating shaft, and the lower pressing member is arranged on the second rotating shaft.

[0013] As a further solution of the present utility model: A plurality of the upper pressing rollers are arranged and evenly distributed on the first rotating shaft.

[0014] As a further solution of the present utility model: A plurality of the lower pressing members are arranged and evenly distributed on the second rotating shaft.

[0015] As a further solution of the present utility model: Both ends of the connecting rod are provided with smooth curve transitions.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] 1. Through the setting of the lower pressing member, the whole lower pressing member is a cam-type structure. When the conveyor belt is working, the non-convex portion of the lower pressing member can limit and press the lower belt of the conveyor belt. At the same time, the convex portion of the lower pressing member can also intermittently apply a short vibration impact to the inner side of the lower belt, so that the material residues and dust adhered to the lower belt are shaken off, realizing the self-cleaning function;

[0018] 2. By setting the pressing member as a cage structure composed of a rotating wheel and a connecting rod, the number of connecting rods can be set as many as possible. That is, the number of times the pressing member rotates one week and exerts a vibration resistance effect on the inner side of the lower belt per unit time is relatively large, thereby realizing high-frequency and high-efficiency cleaning of the lower belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a schematic structural diagram when a pressure roller acts on a conveyor belt in the prior art;

[0021] Figure 2 is a front view structural schematic diagram of the present utility model;

[0022] Figure 3 is a right view structural schematic diagram of the present utility model;

[0023] Figure 4 is a side view structural schematic diagram of the pressing member in the present utility model;

[0024] Figure 5 is a front view structural schematic diagram of the pressing member in the present utility model.

[0025] In the figure: 101, upper belt; 102, lower belt; 201, first pressure roller; 202, second pressure roller;

[0026] 1, upper pressure roller; 2, bearing bracket; 3, pressing member; 301, rotating wheel; 302, connecting rod; 4, first rotating shaft; 5, second rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] As Figures 2 - 5 shown, a device for upper and lower pressing belts with a cleaning function includes a bearing bracket 2 arranged beside the conveyor belt. A first rotating shaft 4 and a second rotating shaft 5 are rotatably arranged on the bearing bracket 2 from top to bottom in sequence. An upper pressure roller 1 is arranged on the first rotating shaft 4, and a pressing member 3 is arranged on the second rotating shaft 5. Among them: the upper pressure roller 1 is used to press against the upper belt 101 of the conveyor belt, the pressing member 3 is used to press against the lower belt 102 of the conveyor belt, and the pressing member 3 is horizontally rotatably arranged between the upper belt 101 and the lower belt 102.

[0029] Among them, the lower pressure piece 3 is cylindrical and a convex portion is provided on its outside, so that the lower pressure piece 3 as a whole constitutes a cam structure. The outside of the lower pressure piece 3 is in a pressing state with the inner side of the lower belt 102, and the axial direction of the lower pressure piece 3 is perpendicular to the movement direction of the lower belt 102. When the lower belt 102 drives the lower pressure piece 3 to rotate, the convex portion intermittently acts on the inner side of the lower belt 102. The short-term resistance exerted by the convex portion on the inner side of the lower belt 102 causes the lower belt 102 to be subjected to a short vibration resistance effect, and then the material residue or dust attached to it can be shaken off, thereby realizing the self-cleaning function.

[0030] The specific structural setting of the lower pressing member 3 can be the following two structures:

[0031] 1. If Figures 3 - 5 As shown, the lower pressure member 3 includes two sets of parallel running wheels 301 and a connecting rod 302 for connecting the two sets of running wheels 301. Both sets of running wheels 301 are rotatably arranged between the upper belt 101 and the lower belt 102. The connecting rod 302 is arranged axially along the running wheels 301, and its ends are respectively connected to the outer edges of the two sets of running wheels 301, so that the connecting rod 302 forms a convex portion. In order to increase the number of times the lower pressure member 3 applies vibration to the lower belt 102 per unit time, on this basis, a plurality of connecting rods 302 can be provided and arranged in a circumferential array between the two sets of running wheels 301.

[0032] 2. The lower pressing member 3 is a lower pressing roller with a convex portion on the outer edge, and the convex portion is arranged along the length direction of the lower pressing roller.

[0033] Furthermore, in order to improve the pressing effect on the lower belt 102 , the upper pressing roller 1 can be set to multiple and evenly distributed on the first rotating shaft 4 , and at the same time, the lower pressing member 3 can be set to multiple and evenly distributed on the second rotating shaft 5 .

[0034] It should be noted that the shape of the connecting rod 302 is not limited to Figure 4 and Figure 5 The straight rod shape shown in the figure can also be set to a curved or corrugated shape as long as it can achieve the vibration resistance effect on the lower belt 102. At the same time, in order to prevent the end of the connecting rod 302 from scratching the inner side of the lower belt 102, both ends of the connecting rod 302 are set with smooth curve transitions.

[0035] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. An upper and lower belt pressing device with a cleaning function, characterized in that, It includes an upper pressing roller (1) for pressing against the upper belt (101) of the conveyor belt and a lower pressing member (3) for pressing against the lower belt (102) of the conveyor belt. The lower pressing member (3) is horizontally rotatably arranged between the upper belt (101) and the lower belt (102). The lower pressing member (3) is cylindrical and has convex portions on its outer surface, so that the whole lower pressing member (3) is configured as a cam-type structure. The outer surface of the lower pressing member (3) is in a pressing state with the inner side of the lower belt (102), and the axis of the lower pressing member (3) is perpendicular to the moving direction of the lower belt (102). When the lower belt (102) drives the lower pressing member (3) to rotate, the convex portions intermittently act on the inner side of the lower belt (102).

2. The up-and-down pressing belt device with a cleaning function according to claim 1, wherein The lower pressing member (3) includes two groups of parallelly arranged rotating wheels (301) and a connecting rod (302) for connecting the two groups of rotating wheels (301). Both groups of rotating wheels (301) are rotatably arranged between the upper belt (101) and the lower belt (102). The connecting rod (302) is arranged along the axial direction of the rotating wheels (301), and its two ends are respectively connected to the outer edges of the two groups of rotating wheels (301), so that the connecting rod (302) forms the convex portions.

3. The up-and-down pressing belt device with a cleaning function according to claim 1, characterized in that, The lower pressing member (3) is a lower pressing roller with the convex portions arranged on its outer edge, and the convex portions are arranged along the length direction of the lower pressing roller.

4. The upper and lower pressing belt device with a cleaning function according to claim 2, characterized in that, A plurality of the connecting rods (302) are arranged in a circumferential array between the two groups of rotating wheels (301).

5. A top and bottom belt device with a cleaning function according to any one of claims 1-4, characterized in that, It further includes a bearing bracket (2), and a first rotating shaft (4) and a second rotating shaft (5) are rotatably arranged on the bearing bracket (2). The first rotating shaft (4) is located above the second rotating shaft (5). The upper pressing roller (1) is arranged on the first rotating shaft (4), and the lower pressing member (3) is arranged on the second rotating shaft (5).

6. The upper and lower belt pressing device with a cleaning function according to claim 5, characterized in that, A plurality of the upper pressing rollers (1) are arranged evenly on the first rotating shaft (4).

7. The upper and lower belt pressing device with a cleaning function according to claim 5, characterized in that A plurality of the lower pressing members (3) are arranged evenly on the second rotating shaft (5).

8. A top and bottom pressing belt device with a cleaning function according to claim 2 or 4, characterized in that, Both ends of the connecting rod (302) are provided with smooth curve transitions.

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