Material receiving and transferring device capable of preventing conveying belt from being damaged

Abstract

The invention belongs to the technical field of conveying, and particularly relates to a material receiving and transferring device for preventing a conveying belt from being damaged. Through reasonable material arrangement, the materials can be sequentially arranged from small to large according to the particle size during receiving and transferring. Specifically, small-particle-size materials fall down firstly, and an anti-collision buffer layer evenly covering the surface of the conveying belt is formed. And the large-particle-size materials fall down along with the rear part. Through the design, materials with small particle sizes firstly fall down to form an anti-collision buffer layer, a buffer area is provided for follow-up materials with large particle sizes, and the materials with large particle sizes are prevented from directly impacting the conveying belt. The impact force of the large-particle-size materials firstly acts on the falling small-particle-size materials before instead of directly acting on the conveying belt, so that the impact force of the materials on the surface of the belt is obviously reduced. The buffering mechanism not only can effectively reduce damage to the conveying belt, but also can prolong the service life of the conveying belt.

Description

Technical Field

[0001] The invention belongs to the technical field of conveying, and in particular relates to a material transfer device for preventing a conveyor belt from being damaged. Background Art

[0002] Conveyor belts are widely used in various material transport systems, playing a particularly important role in industries such as coal mining, ore processing, and construction material transportation. However, conveyor belts often suffer varying degrees of damage during long-term operation. This is especially true at the material receiving end. Uneven force on the conveyor belt, excessive material impact, or large variations in particle size can easily lead to belt breakage, increased wear, and even fracture. Conveyor belt damage not only affects production efficiency, but also increases equipment maintenance costs and poses a potential safety hazard.

[0003] At the conveyor belt's feed end, due to the large differences in material particle size, larger particles often impact the belt surface at higher speeds, creating localized impact forces that can damage the belt. Smaller particles, on the other hand, are lighter, so their impact on the belt is less pronounced, resulting in a more even distribution. This disparity exacerbates belt surface damage, especially during the material transfer process, where impact forces are difficult to effectively mitigate.

[0004] Furthermore, conveyor belts are prone to blockage during material transport, especially when the material particle size distribution is uneven or there are foreign objects. This can prevent some large particles from passing through the conveyor belt or screening device, leading to system blockage and reduced production efficiency.

[0005] Therefore, how to effectively solve conveyor belt damage, improve the stability of the transportation system, and especially prevent large-particle materials from directly impacting the belt during material transfer has become a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned problems existing in traditional technologies and provide a material transfer device that prevents damage to the conveyor belt, which can effectively reduce the impact of materials on the conveyor belt and avoid large-particle materials directly hitting the belt, thereby effectively reducing the wear and damage of the conveyor belt.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a material receiving and transferring device for preventing damage to a conveyor belt. The material receiving and transferring device includes a cover body arranged above the conveyor belt, a regularly arranged screening mechanism installed inside the cover body, a feed pipe provided on the upper side of the cover body near the front end of the conveyor belt, and the regularly arranged screening mechanism can realize the arrangement of material particle size from small to large from one end where the feed pipe is located to the other end, and the small-particle material falls first in the front end area near the conveyor belt, and can pre-form an anti-collision buffer layer on the conveyor belt before the large-particle material falls.

[0009] Furthermore, in the above-mentioned material transfer device for preventing damage to the conveyor belt, the regularly arranged screening mechanism includes a number of frustum-shaped movable rollers arranged side by side, and a variable-diameter sieve hole with a gradually increasing gap is formed between two adjacent frustum-shaped movable rollers. Positioning shafts are provided at both ends of the frustum-shaped movable rollers, and the positioning shafts are movably supported by the cover body.

[0010] Furthermore, in the above-mentioned material transfer device for preventing damage to the conveyor belt, the outer surface of the frustum-shaped movable roller is uniformly distributed with ridges.

[0011] Furthermore, in the above-mentioned material transfer device for preventing damage to the conveyor belt, the frustum-shaped movable roller is arranged at an angle, and its wide end is located below the feed pipe.

[0012] Furthermore, in the above-mentioned material transfer device for preventing damage to the conveyor belt, the rotation directions of the two adjacent frustum-shaped movable rollers are opposite.

[0013] Furthermore, in the above-mentioned material transfer device for preventing conveyor belt damage, the truncated cone-shaped movable roller is located on one side of the positioning shaft and a gear is installed thereon, and the gears on two adjacent truncated cone-shaped movable rollers are meshed with each other.

[0014] Furthermore, in the above-mentioned material transfer device for preventing conveyor belt damage, pulleys are installed on the positioning shafts of the two adjacent truncated cone-shaped movable rollers on different sides, and a synchronous belt is sleeved between the two adjacent pulleys on the same side.

[0015] Furthermore, in the above-mentioned material transfer device for preventing damage to the conveyor belt, the rotation directions of the two adjacent frustum-shaped movable rollers are the same.

[0016] Furthermore, in the above-mentioned material transfer device for preventing conveyor belt damage, the truncated cone-shaped movable roller is located on one side of the positioning shaft and is equipped with a pulley, and a synchronous belt is provided between the pulleys of two adjacent truncated cone-shaped movable rollers.

[0017] Furthermore, the above-mentioned material transfer device for preventing damage to the conveyor belt also includes a vibration component, which includes a trough-type base frame, a vertical shaft, a limit plate, a compression spring and an exciter. The vertical shaft is provided in multiples and distributed around the exciter. The bottom end of the vertical shaft is fixed to the upper side plate of the cover body, the vertical shaft passes through the web of the trough-type base frame, and the top end of the vertical shaft is installed with a limit plate. The vertical shaft is located between the cover body and the limit plate and is sleeved with a compression spring on the outside of the shaft body. The web of the trough-type base frame is installed with an exciter that is against the upper side plate of the cover body.

[0018] The beneficial effects of the present invention are:

[0019] 1. Arrangement of Materials from Small to Large Particle Size: Through rational material arrangement, materials are arranged in ascending order of particle size during transfer. Specifically, small-sized materials fall first, forming a collision-resistant cushioning layer evenly covering the conveyor belt surface. Large-sized materials follow behind. This design allows smaller-sized materials to fall first, forming a collision-resistant cushioning layer that provides a buffer for subsequent larger-sized materials, preventing them from directly impacting the conveyor belt.

[0020] 2. Buffering mechanism: Small particles fall first, creating a significant time difference during the transfer process. This time difference provides an opportunity for larger particles to buffer the flow. The impact force of the larger particles acts first on the smaller particles that have already fallen, rather than directly on the conveyor belt. This significantly reduces the impact force on the belt surface. This buffering mechanism not only effectively reduces damage to the conveyor belt but also extends its service life.

[0021] 3. Screening debris to keep large target materials and debris at the top surface of the conveying material: In the transfer device, small particles fall first and coat the conveyor belt surface. The gaps between larger particles and smaller particles effectively screen out some debris. Through proper design, the transfer device can prevent these debris from impacting the conveyor belt, while ensuring uniform material delivery and reducing blockage. Furthermore, large particles and debris are exposed directly on the surface, facilitating their subsequent sorting and removal, preventing blockages and accidents at subsequent checkpoints.

[0022] 4. Anti-blocking design: Due to the time difference between the falling time of large-size materials and the falling time of small-size materials, a buffering effect is formed, which can prevent the accumulation of materials when falling and reduce the occurrence of blockage. This design effectively improves the working efficiency of the conveyor belt and ensures the smooth transportation of materials.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the present invention;

[0031] In the accompanying drawings, the reference numerals of the various components are as follows:

[0032] 1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] like Figures 1-4 As shown, this embodiment provides a material transfer device for preventing damage to the conveyor belt, the material transfer device includes a cover body 1 arranged above the conveyor belt 9, a regularly arranged screening mechanism 2 is installed inside the cover body 1, and a feed pipe 3 is provided on the upper side of the cover body 1 near the front end of the conveyor belt 9 (the running direction of the upper belt body of the conveyor belt 9 is from the front end to the rear end). The regularly arranged screening mechanism 2 can realize the arrangement of material particle size from one end where the feed pipe 3 is located to the other end from small to large, and the small-sized material falls first in the front end area near the conveyor belt 9, and can pre-form an anti-collision buffer layer on the conveyor belt 9 before the large-sized material falls.

[0036] In this embodiment, the regularly arranged screening mechanism 2 includes several truncated cone-shaped movable rollers 201 arranged side by side. A gradually increasing gap is formed between adjacent truncated cone-shaped movable rollers 201. Positioning shafts 202 are provided at both ends of the truncated cone-shaped movable rollers 201, and the housing 1 provides movable support for the positioning shafts 202.

[0037] In this embodiment, the outer surface of the truncated cone-shaped movable roller 201 is uniformly distributed with ridges, which is conducive to pushing the material to slide.

[0038] In this embodiment, the truncated cone-shaped movable roller 201 is tilted, and its wide end is located below the feed pipe 3. Gravity is used to promote the sliding of materials, and classification is achieved during the sliding process.

[0039] In this embodiment, two adjacent truncated cone-shaped movable rollers 201 rotate in opposite directions. A gear 203 is mounted on a positioning shaft 202 on one side of each truncated cone-shaped movable roller 201. The gears 203 on the two adjacent truncated cone-shaped movable rollers 201 mesh with each other. One of the truncated cone-shaped movable rollers 201 serves as the active roller, and its positioning shaft 202 is driven by an active motor 205 via a belt drive 204.

[0040] The specific application of this embodiment is: this device can realize automatic classification and blanking of material particle size, thereby effectively reducing the impact damage to the conveyor belt, and at the same time has good buffering, anti-blocking and debris screening effects. The design of the regularly arranged screening mechanism is scientific and reasonable. Small-particle materials are small in size and easy to pass through the front sieve holes. They first fall from the front end of the truncated cone-shaped movable roller and are evenly distributed in the front section of the conveyor belt, forming a natural anti-collision buffer layer; large-particle materials gradually move toward the end as the truncated cone-shaped movable roller rotates, and finally fall from the larger sieve holes or end openings at the rear of the truncated cone-shaped movable roller. Since the front end is already covered by small materials, large-particle materials will not directly hit the conveyor belt when they fall, but will first contact the buffer layer, thereby significantly reducing the impact. This structure uses the material's own motion trajectory and the screening characteristics of the drum to automatically form a time-difference blanking and buffering effect. In addition, the materials between the truncated cone-shaped movable rollers tumble continuously with the rotation, preventing the materials from sticking and agglomerating, and effectively avoiding blockage; debris (such as wood blocks, metals, and large pieces of waste) with abnormal shapes or unable to pass through the sieve holes will be discharged to the side debris collection port or tail discharge as the truncated cone-shaped movable rollers rotate, preventing them from directly entering the conveyor belt system; the cover body can be equipped with a collection trough to meet the needs of debris collection.

[0041] Example 2

[0042] The difference between this embodiment and the first embodiment lies in that the schemes for achieving the opposite rotation directions of two adjacent frustum-shaped movable rollers 201 are different.

[0043] In this embodiment, pulleys are installed on the positioning shafts 202 on different sides of two adjacent frustum-shaped movable rollers 201 , and a synchronous belt 206 is sleeved between the two adjacent pulleys on the same side.

[0044] Example 3

[0045] The difference between this embodiment and the first embodiment is that Figure 5 and Figure 6 As shown, the rotation direction of two adjacent truncated cone-shaped movable rollers 201 is the same. The truncated cone-shaped movable roller 201 is located on one side of the positioning shaft 202 and is equipped with a pulley. A synchronous belt 206 is sleeved between the pulleys of the two adjacent truncated cone-shaped movable rollers 201.

[0046] Example 4

[0047] Compared with the first embodiment, this embodiment further includes a vibration assembly, which includes a trough-shaped base frame 4, a vertical shaft 5, a limit plate 6, a compression spring 7, and an exciter 8. A plurality of vertical shafts 5 are provided and distributed around the exciter 8. The bottom end of the vertical shaft 5 is fixed to the upper side plate of the cover body 1, and the vertical shaft 5 passes through the web of the trough-shaped base frame 4. The limit plate 6 is installed at the top end of the vertical shaft 5. The compression spring 7 is sleeved on the outer side of the shaft body of the vertical shaft 5 located between the cover body 1 and the limit plate 6. The exciter 8 is mounted on the web of the trough-shaped base frame 4, which abuts against the upper side plate of the cover body 1.

[0048] In this embodiment, the vibration component provides overall vibration for the cover body 1 , which is beneficial to improving the screening efficiency of the regularly arranged screening mechanism 2 in the cover body 1 .

[0049] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A material transfer device for preventing conveyor belt damage, characterized in that: The material transfer device includes a cover body arranged above the conveyor belt, a regularly arranged screening mechanism is installed inside the cover body, and a feed pipe is provided on the upper side of the cover body near the front end of the conveyor belt. The regularly arranged screening mechanism can realize the arrangement of material particle size from small to large from one end where the feed pipe is located to the other end, and the small-sized material falls first in the front end area near the conveyor belt, and can pre-form an anti-collision buffer layer on the conveyor belt before the large-sized material falls.

2. The material transfer device for preventing conveyor belt damage according to claim 1, characterized in that: The regularly arranged screening mechanism includes several frustum-shaped movable rollers arranged side by side, and a variable-diameter sieve hole with a gradually increasing gap is formed between two adjacent frustum-shaped movable rollers. Positioning shafts are provided at both ends of the frustum-shaped movable rollers, and the positioning shafts are movably supported by the cover body.

3. The material transfer device for preventing conveyor belt damage according to claim 1, characterized in that: The outer surface of the truncated cone movable roller is uniformly distributed with convex ridges.

4. The material transfer device for preventing conveyor belt damage according to claim 1, characterized in that: The frustum-shaped movable roller is tilted, and the wide end thereof is located below the feed pipe.

5. The material transfer device for preventing conveyor belt damage according to claim 1, characterized in that: The rotation directions of two adjacent frustum-shaped movable rollers are opposite.

6. The material transfer device for preventing conveyor belt damage according to claim 5, characterized in that: The truncated cone-shaped movable roller is located on one side of a positioning shaft and a gear is installed on the truncated cone-shaped movable roller. The gears on two adjacent truncated cone-shaped movable rollers are meshed with each other.

7. The material transfer device for preventing conveyor belt damage according to claim 5, characterized in that: Two adjacent truncated cone-shaped movable rollers are located on different sides of the positioning shaft and are equipped with pulleys. A synchronous belt is sleeved between the two adjacent pulleys on the same side.

8. The material transfer device for preventing conveyor belt damage according to claim 1, characterized in that: The rotation directions of two adjacent frustum-shaped movable rollers are the same.

9. The material transfer device for preventing conveyor belt damage according to claim 8, characterized in that: The truncated cone-shaped movable roller is located on one side of the positioning shaft and is provided with a pulley. A synchronous belt is sleeved between the pulleys of two adjacent truncated cone-shaped movable rollers.

10. The material transfer device for preventing conveyor belt damage according to any one of claims 1 to 9, characterized in that: It also includes a vibration component, which includes a groove-shaped base, a vertical shaft, a limit plate, a compression spring and an exciter. The vertical shaft is provided in plurality and distributed around the exciter. The bottom end of the vertical shaft is fixed to the upper side plate of the cover body, and the vertical shaft passes through the web of the groove-shaped base. The top end of the vertical shaft is installed with a limit plate. The vertical shaft is located between the cover body and the limit plate and is sleeved with a compression spring on the outside of the shaft body. The exciter that is against the upper side plate of the cover body is installed on the web of the groove-shaped base.

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