Belt conveyor non-return mechanism

Abstract

The utility model discloses a non-return mechanism of a belt conveyor. The non-return mechanism aims at solving the technical problem that an existing belt conveyor cannot effectively prevent a belt from rotating reversely. The non-return carrier roller device mainly comprises a plurality of non-return carrier roller sets and a belt correspondingly driven by the non-return carrier roller sets. The non-return carrier roller set comprises at least two carrier rollers, and each carrier roller comprises a roller shaft, a roller wheel arranged outside the roller shaft in a sleeving mode, a bearing arranged between the roller wheel and the roller shaft and a non-return assembly. The non-return assembly comprises an annular connecting piece, reset springs and non-return blocks, wherein a plurality of grooves are formed in the inner circumferential face of the connecting piece, and the reset springs and the non-return blocks are correspondingly arranged in the grooves. The roller shaft is provided with sliding grooves correspondingly matched with the non-return blocks. Rolling grooves are formed in the inner surface of the belt, and anti-slip strips correspondingly matched with the rolling grooves are arranged on the outer circumferential faces of the rollers. Through cooperation of the carrier roller internally provided with the non-return assembly and provided with the anti-slip strips on the outer surface and the belt provided with the rolling grooves in the inner surface, reverse rotation of the carrier roller can be effectively prevented, the friction force between the carrier roller and the belt during reverse rotation of the belt is increased, and then reverse rotation of the belt is effectively prevented.

Description

Technical Field

[0001] This application relates to the technical field of conveying equipment, and specifically relates to a belt conveyor backstop mechanism. Background Art

[0002] A belt conveyor is a material handling machine that continuously conveys materials on a certain line. It can perform horizontal, inclined, and vertical conveyances, and can also form a spatial conveyance line, but the conveyance line is generally fixed; the belt conveyor has a large conveying capacity, a long conveying distance, and can also complete several process operations during the conveying process. Therefore, it is widely used in various industries such as the mining industry, logistics warehousing, and construction industry.

[0003] In the mining industry, the belt conveyor plays a very important role, and its usage frequency and intensity are extremely high. The harsh and complex construction environment at the mining site poses great challenges to the operation of the belt conveyor; most of the existing long-distance belt conveyors are driven by motors to drive the tensioning wheels to drive the belt to rotate in a cycle. The idlers at the bottom of the belt support the belt to prevent it from sagging. Once the power is cut off at the construction site, due to the large load of the materials conveyed by the belt, there is a risk that the belt will drive the motor and the idlers to reverse, posing a great safety hazard; in addition, due to the large amount of dust generated at the mining construction site, the dust is easily adhered to the surface of the belt and the idlers, which will reduce the friction between the belt and the idlers. When the belt conveyor stops suddenly, even if the idlers are locked, due to the insufficient friction between the belt and the idlers, the belt will still slide and reverse, resulting in accidents.

[0004] Therefore, there is an urgent need for a backstop mechanism that can effectively prevent the belt from reversing to solve the above problems.

[0005] The information disclosed in this background art section is only used to deepen the understanding of the background art of the present disclosure, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0006] In view of at least one of the above technical problems, the present disclosure provides a belt conveyor backstop mechanism. By cooperating a roller with a backstop component inside and anti-slip strips on the outer surface and a belt with rolling grooves on the inner surface, it can effectively prevent the roller from reversing, increase the friction between the roller and the belt when the belt reverses, and thus prevent the belt from reversing, solving the problem that the existing belt conveyor cannot effectively prevent the belt from reversing.

[0007] According to one aspect of the present disclosure, a belt conveyor backstop mechanism is provided, which includes a plurality of backstop idler groups and a belt driven correspondingly by the backstop idler groups; the backstop idler groups include at least two idlers, and each idler includes a roller shaft, a roller wheel sleeved outside the roller shaft, a bearing arranged between the roller wheel and the roller shaft, and a backstop assembly; the backstop assembly includes an annular connecting member with a plurality of grooves provided on its inner circumferential surface, a return spring correspondingly arranged in the groove, and a backstop block; a chute corresponding to and matching with the backstop block is provided on the roller shaft; a rolling groove is provided on the inner surface of the belt, and an anti-slip strip corresponding to and matching with the rolling groove is provided on the outer circumferential surface of the roller wheel.

[0008] In some embodiments of the present disclosure, the idlers of the backstop idler groups are correspondingly arranged in a V-shaped structure.

[0009] In some embodiments of the present disclosure, the idler further includes baffles arranged at both ends of the roller wheel.

[0010] In some embodiments of the present disclosure, the connecting member is key-connected to the roller wheel correspondingly.

[0011] In some embodiments of the present disclosure, one side of the outer end of the backstop block is arc-shaped and the opposite side is straight-shaped, so as to adapt to the forward rotation of the roller wheel and prevent the roller wheel from reversing.

[0012] In some embodiments of the present disclosure, the anti-slip strip is of an arc-shaped structure, and its end is provided with a tip.

[0013] One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:

[0014] 1. Since a return spring is provided at the inner end of the backstop block, the backstop block is continuously subjected to the outward elastic force of the return spring in the squeezed state. When the idler rotates reversely, each backstop block can get rid of the influence of gravity and insert into the chute of the roller shaft, so as to jointly bear force and quickly block the reverse rotation of the idler. The structure of the backstop assembly is reliable, the problem that the backstop block cannot be smoothly inserted into the chute can be avoided, and the reverse rotation of the idler can be effectively prevented.

[0015] 2. When the belt rotates reversely, the idler first acts as a backstop. Since a rolling groove is provided on the inner surface of the belt and an anti-slip strip corresponding to the rolling groove is provided on the circumferential surface of the roller wheel, and the anti-slip strip is of an arc-shaped structure with a tip, the tip can quickly insert into the rolling groove, and the supporting force of the roller wheel is used to block the reverse rotation of the belt, which can greatly improve the backstop effect of the belt. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a belt conveyor backstop mechanism in an embodiment of the present application.

[0017] Figure 2 It is a schematic structural diagram of an idler in an embodiment of the present application.

[0018] Figure 3 This is a schematic structural diagram of the check component in an embodiment of the present application.

[0019] In the above figures, 1 is a belt, 2 is a carrying roller, 3 is a roller shaft, 4 is a roller, 5 is a bearing, 6 is a baffle, 7 is a connecting member, 8 is a groove, 9 is a return spring, 10 is a check block, 11 is a sliding groove, 12 is a rolling groove, and 13 is an anti-slip strip. Detailed implementation manners

[0020] In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 application. And the "connection" and "coupling" involved in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0022] The components, structures, and mechanisms involved in the following embodiments, unless otherwise specified, are all conventional commercially available products.

[0023] The embodiment of the present application provides a belt conveyor check mechanism, which solves the problem that the existing belt conveyor cannot effectively prevent the belt from reversing when power is cut off and stopped suddenly. By cooperating a carrying roller with a check component inside and an anti-slip strip on the outer surface with a belt having a rolling groove on the inner surface, it can effectively prevent the carrying roller from reversing and increase the friction between the carrying roller and the belt when the belt reverses, thereby preventing the belt from reversing.

[0024] This example discloses a belt conveyor check mechanism. Refer to Figures 1 to 3 , including a plurality of check carrying roller groups and a belt 1 arranged above the check carrying roller groups and driven correspondingly by the check carrying roller groups; the belt 1 rotates cyclically under the drive of a motor, and the check carrying roller groups are used to support the belt 1 to prevent the belt 1 from sagging. The check carrying roller groups have no power source and rely on the friction with the belt 1 to rotate.

[0025] Refer to Figure 1 , Figure 2, the rollers of the backstop roller group are arranged in a V-shaped structure, which not only occupies a small area and has a high load capacity, but also can better control the movement direction of the material to avoid deviation and dislocation; the backstop roller group includes four rollers 2, and the roller 2 includes a roller shaft 3, a roller 4, a bearing 5 and a backstop assembly correspondingly arranged between the roller shaft 3 and the roller 4, and a baffle 6 arranged at the end of the roller 4. The roller shaft 3 is fixedly arranged on the frame of the belt conveyor, and the roller 4 is correspondingly sleeved on the roller shaft 3 and is rotatably connected with the roller shaft 3 through the bearing 5.

[0026] See Figure 2 , the backstop assembly is arranged at both ends of the roller 4 and outside the bearing 5 to lock the roller 4 when the roller 4 rotates reversely; the backstop assembly includes an annular connecting piece 7 correspondingly connected with the roller 4. A key is arranged on the connecting piece 7, and a key groove corresponding to it is arranged on the roller 4. The connecting piece 7 and the roller 4 are correspondingly key-connected; six grooves 8 are evenly arranged on the inner circumferential surface of the connecting piece 7, and a return spring 9 and a backstop block 10 correspondingly matched with it are arranged in the grooves 8. The return spring 9 is located at the inner end of the backstop block 10. When the return spring 9 is in a non-compressed state, the outer end of the backstop block 10 protrudes from the groove 8. When the return spring 9 is compressed, the backstop block 10 can be hidden in the groove 8.

[0027] See Figure 3 , one side of the outer end of the backstop block 10 is arc-shaped and the opposite side is straight-shaped. A chute 11 correspondingly matched with the backstop block 10 is arranged at the position corresponding to the backstop assembly on the roller shaft 3. One end of the chute 11 is deeper and the other end is shallower, and it is in a progressive form between the two ends; the chute 11 is fixed and immovable with the roller shaft 3, and the backstop block 10 rotates with the roller 4. When the roller 4 rotates forward, the backstop block 10 rotates from the deeper end of the chute 11 to the shallower end, and the arc-shaped side of the backstop block 10 faces forward, and the roller 4 can rotate without hindrance and can continue to rotate; when the roller 4 rotates reversely, the backstop block 10 rotates from the shallower end of the chute 11 to the deeper end, and at this time the straight-shaped side of the backstop block 10 faces forward. When the backstop block 10 rotates to the deeper end of the chute 11, it abuts against the chute 11 wall, and the chute 11 then prevents the roller 4 from rotating, realizing the reverse stop of the roller 4; because a return spring 9 is arranged at the inner end of the backstop block 10, the backstop block 10 is continuously subjected to the outward elastic force of the return spring 9 under the compressed state. When the roller 2 rotates reversely, each backstop block 10 can get rid of the influence of gravity and insert into the chute 11 of the roller shaft 3, so as to quickly block the reverse rotation of the roller 2. The backstop assembly has a reliable structure and a good backstop effect.

[0028] See Figure 1, the inner surface of the belt 1 is evenly provided with rolling grooves 12, and the outer circumferential surface of the roller 4 is provided with anti-slip strips 13 corresponding to the rolling grooves 12. The anti-slip strips 13 and the rolling grooves 12 cooperate to increase the friction between the roller 4 and the belt 1, which can effectively help the roller 4 prevent the belt 1 from reversing; the rolling grooves 12 are strip-shaped grooves, and the anti-slip strips 13 are arc-shaped structures with tips, and the tips face the direction of the forward rotation of the belt 1; when the belt 1 rotates forward, the roller 4 follows the forward rotation of the belt 1 under the pressure of the belt 1. At this time, the friction between the belt 1 and the roller 4 is rolling friction, and the friction is small; when the belt 1 rotates reversely, the roller 4 is first locked, and the anti-slip strip 13 abuts against the rolling groove 12, and the supporting force of the roller 4 is used to block the reverse rotation of the belt 1, and the anti-reverse effect of the belt 1 is good.

[0029] Usage mode of this application: When the belt of the belt conveyor rotates reversely, the idler roller that supports the belt will also rotate reversely accordingly. At this time, the anti-reverse block in the idler roller rotates reversely along the chute. The anti-reverse block is continuously subjected to the elastic force of the return spring outward, so that the anti-reverse block always abuts against the bottom of the chute. When the anti-reverse block rotates to the deeper end of the chute, the anti-reverse block abuts against the chute arm, and the chute prevents the anti-reverse block from rotating and thus prevents the roller from rotating, realizing the anti-reverse of the roller. At this time, the belt still has a tendency to rotate reversely. During the reverse rotation of the belt, the anti-slip strip on the roller abuts against the rolling groove on the belt, and the supporting force of the roller is used to prevent the belt from rotating reversely, thereby realizing the anti-reverse of the belt.

[0030] Although some preferred embodiments of this application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of this application.

[0031] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of its inventive concept. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these changes and modifications.

Claims

1. A belt conveyor non-return mechanism, characterized in that: It comprises a plurality of check roller groups and a belt driven by the check roller groups; the check roller group comprises at least two rollers, the roller comprises a roller shaft, a roller wheel sleeved outside the roller shaft, a bearing arranged between the roller wheel and the roller shaft, and a check assembly; the check assembly comprises a ring-shaped connecting piece with a plurality of grooves on the inner circumference, a return spring and a check block arranged in the grooves; the roller shaft is provided with a sliding groove corresponding to the check block; the inner surface of the belt is provided with a rolling groove, and the outer circumference of the roller wheel is provided with an anti-slip strip corresponding to the rolling groove.

2. The belt conveyor non-return mechanism according to claim 1, characterized in that: The rollers of the check roller group are arranged in a V-shaped structure.

3. The belt conveyor non-return mechanism according to claim 1, characterized in that: The supporting roller also includes baffles arranged at both ends of the roller.

4. The belt conveyor non-return mechanism according to claim 1, characterized in that: The connecting member is connected to the roller corresponding to a key.

5. The belt conveyor non-return mechanism according to claim 1, characterized in that: One side of the outer end of the check block is arc-shaped, and the opposite side is straight, so as to adapt to the forward rotation of the roller and prevent the reverse rotation of the roller.

6. The belt conveyor non-return mechanism according to claim 1, characterized in that: The anti-slip strip is an arc-shaped structure, and a pointed end is provided at the end thereof.

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