Buffer device for reducing impact of large materials on belt conveyor
By installing a buffer device consisting of a partition screen and buffer springs on the belt conveyor, the problem of impact on the conveyor belt when large pieces of material fall is solved, thereby reducing wear and extending service life.
Patent Information
- Application Number
- CN202520134023.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Large pieces of material exert a significant impact on the conveyor belt when falling up or down, causing severe wear and tear, increasing cleaning difficulty and transportation costs, and may even lead to belt breakage and damage.
Design a buffer device including a partition screen, a front support leg, a rear support leg, a support leg base, and a buffer spring. The partition screen is installed below the outlet of the ore chute and is inclined downward. The buffer spring is installed between the bottom surface of the partition screen and the support leg to buffer the impact force of large pieces of material.
It effectively reduces the impact of large materials on the conveyor belt, reduces conveyor belt wear, extends service life, and reduces transportation costs.
Smart Images
Figure CN223892047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a buffer device that can reduce the impact of large materials on the conveyor belt of a belt conveyor. It belongs to the technical field of mining belt conveyor equipment. Background Technology
[0002] Belt conveyors are common material conveying devices, and raw material transportation in the mining industry is mostly accomplished using belt conveyors. With the research and development and use of large-scale grinding equipment, and the continuous optimization and upgrading of grinding and beneficiation processes, many large mines have adopted autogenous mills instead of multi-stage crushers, reducing equipment investment and operating costs. Belt conveyors for transporting large materials have become an important part of the grinding process. When large materials are transferred from one belt conveyor to another, they impact and bounce several times in the chute before falling onto the lower belt conveyor. The greater the weight of the material, the greater the impact on the conveyor belt surface upon falling. Due to the irregularity of the material, relatively sharp parts contact the conveyor belt first, easily causing the conveyor belt's rubber layer to peel, increasing the difficulty of cleaning by the sweeper, and increasing material accumulation at the bottom of the conveyor. In severe cases, it can even cause conveyor belt breakage and damage, reducing service life and increasing transportation costs. Therefore, it is essential to reduce the impact of large materials on the conveyor belt. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a buffer device for reducing the impact of large materials on belt conveyors. This buffer device can effectively reduce the impact of large materials falling on the conveyor belt, reduce wear on the conveyor belt surface, and improve the service life of the belt conveyor.
[0004] The technical solution to the above technical problem is:
[0005] A buffer device for reducing the impact of large materials on a belt conveyor includes a partition screen, front support legs, rear support legs, support leg bases, and buffer springs. The partition screen is placed below the outlet of the ore chute. The partition screen is rectangular, with its length along the running direction of the belt conveyor. The width of the partition screen is greater than the outlet width of the ore chute. The front support leg and the rear support leg are respectively installed on the lower sides of the partition screen. The front support leg is located at the head of the belt conveyor, and the rear support leg is located at the tail of the belt conveyor. The lower ends of the front and rear support legs are fixedly connected to the support leg bases. The support leg bases are firmly fixed to the ground on both sides of the belt conveyor. The height of the rear support leg is greater than the height of the front support leg. The plane of the partition screen is inclined downwards towards the head of the conveyor. Buffer springs are installed between the bottom surface of the partition screen and the top surfaces of the front and rear support legs.
[0006] The aforementioned buffer device for reducing the impact of large materials on the belt conveyor consists of a screen bar, crossbeams, and screen bar guard plates. The screen bar consists of multiple parallel steel bars, the length of which is parallel to the running direction of the belt conveyor. There are gaps between the multiple screen bars, the width of which matches the size of the large materials. There are multiple crossbeams at the lower end of the screen bars, which are welded perpendicularly to the screen bars. The screen bars and crossbeams form a rectangular frame, and rectangular screen bar guard plates are welded to both sides and the rear end of the rectangular frame.
[0007] The beneficial effects of this utility model are:
[0008] The partition screen of this invention is located below the ore chute. Large pieces of material falling from the ore chute land on the partition screen, preventing them from impacting the conveyor belt of the belt conveyor. The front end of the partition screen is inclined downwards, allowing large pieces of material to slide down the partition screen onto the conveyor belt, reducing the impact force on the conveyor belt. A buffer spring is installed at the lower end of the partition screen to cushion the impact of the material on the partition screen.
[0009] This utility model has a simple structure and is easy to use. It can separate large pieces of material that fall into the belt conveyor, preventing them from falling directly onto the conveyor belt surface and causing damage. It can also buffer large pieces of material, reducing the impact force on the conveyor belt surface, increasing the service life of the conveyor belt, and reducing the operating cost of the belt conveyor. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the structure of a bar screen.
[0012] The following are marked in the diagram: 1. Mine chute; 2. Conveyor belt; 3. Conveyor belt idler; 4. Conveyor belt tail pulley; 5. Conveyor belt guard plate; 6. Partition screen; 7. Front support leg; 8. Rear support leg; 9. Support leg base; 10. Buffer spring; 11. Screen bar; 12. Crossbeam; 13. Partition screen guard plate. Detailed Implementation
[0013] This utility model consists of a partition screen 6, a front support leg 7, a rear support leg 8, a support leg base 9, and a buffer spring 10.
[0014] Figure 1The screen 6 is installed between the chute 1 and the conveyor belt 2. The rectangular screen 6 runs along the direction of the conveyor belt, and its width is greater than the outlet width of the chute 1, allowing it to screen materials falling from the chute 1. A 5-10cm gap is maintained between the screen 6 and the chute 1 to prevent collision when materials fall onto it. There is also a gap between the screen 6 and the conveyor belt 2; the size of this gap can be adjusted according to the maximum size of the material to ensure smooth passage.
[0015] Figure 1 The screen 6 is shown to have front support legs 7 and rear support legs 8 installed on its lower sides. Front support legs 7 are located at the head of the belt conveyor, and rear support legs 8 are located at the tail of the belt conveyor. The lower ends of front support legs 7 and rear support legs 8 are fixedly connected to support leg bases 9, and support leg bases 9 are firmly fixed to the ground on both sides of the belt conveyor.
[0016] Figure 1 The display shows that the height of the rear support leg 8 is greater than the height of the front support leg 7, and the plane of the partition screen 6 is inclined downwards towards the machine head. Large pieces of material can slide down along the partition screen 6 onto the conveyor belt 2 of the belt conveyor, reducing the impact force on the conveyor belt 2 and avoiding damage to the conveyor belt 2.
[0017] Figure 1 The display shows that a buffer spring 10 is installed between the bottom surface of the partition screen 6 and the top surfaces of the front support leg 7 and the rear support leg 8. When the partition screen 6 is impacted by material, the buffer spring 10 can move the partition screen 6 up and down to buffer it, reduce the impact force of the material on the partition screen 6, and prevent damage to the partition screen 6. The buffer spring 10 has a large diameter and sufficient strength and rigidity to withstand the impact of the weight of the partition screen 6 and the material. The buffer spring 10 itself will not tip over or swing, and can maintain up and down elastic vibration.
[0018] Figure 2 The screen 6 is composed of screen bars 11, crossbeams 12, and screen guard plates 13. The screen bars 11 are multiple parallel steel bars, with their length parallel to the direction of the belt conveyor. There are gaps between the screen bars 11, the width of which matches the size of large pieces of material. Multiple crossbeams 12 are welded perpendicularly to the screen bars 11 at their lower ends. The screen bars 12 and crossbeams 12 form a rectangular frame, with rectangular screen guard plates 13 welded to both sides and the rear end of the rectangular frame. When material falls onto the screen bars 11, large pieces are blocked and cannot fall directly onto the conveyor belt 2, protecting the conveyor belt 2. Small pieces of material and powder fall onto the conveyor belt 2 through the gaps between the screen bars 11, without affecting the normal transport function of the conveyor belt 2. The screen guard plates 13 prevent material from leaking from the sides and rear during the process of falling from the screen 6 onto the conveyor belt 2.
[0019] The installation and use process of this utility model is as follows:
[0020] During the material conveying process of the belt conveyor, the material falls onto the partition screen 6 through the outlet of the ore chute 1. The width of the partition screen 6 is greater than the outlet width of the ore chute 1. When the material passes through the partition screen 6, it will be divided into two parts. Large pieces of material are separated by the screen bars 11 of the partition screen 6. The partition screen 6 uses a buffer spring 10 to buffer the impact force when large pieces of material fall. At the same time, affected by the screen surface angle of the partition screen 6, large pieces of material will slide down from the screen surface in the running direction of the conveyor belt 2. Powdered material can fall directly from the gap of the screen bars 11 of the partition screen 6 onto the conveyor belt 2, preventing material accumulation and blockage of the ore chute 1.
[0021] An embodiment of this utility model is as follows:
[0022] The length of the partition screen 6 is 1200mm and the width is 1000mm. The screen bars 11 and the crossbeams 12 are made of rail steel, model 43 rail steel. The length of the partition screen guard plate 13 is 1200mm, the width is 300mm and the thickness is 3mm.
[0023] The front outrigger 7 and the rear outrigger 8 are machined from I-beams, model 18# Q235. The height of the front outrigger 7 is 1200mm and the height of the rear outrigger 8 is 1800mm.
[0024] The support leg base 9 is machined from manganese steel plate, model 20mm 16MN, with a length of 200mm, a width of 200mm, and a height of 20mm;
[0025] The buffer spring 10 is model SK103, with a diameter of 30mm and a length of 160mm.
Claims
1. A buffer device for reducing the impact of large pieces of material on a belt conveyor, characterized in that: It includes a bar screen (6), a front support leg (7), a rear support leg (8), a support leg base (9), and a buffer spring (10). The bar screen (6) is placed below the outlet of the ore chute (1). The bar screen (6) is rectangular, and its length is along the running direction of the belt conveyor. The width of the bar screen (6) is greater than the outlet width of the ore chute (1). The front support leg (7) and the rear support leg (8) are installed on the lower sides of the bar screen (6), respectively. The front support leg (7) is located on the belt conveyor. In the direction of the conveyor head, the rear support leg (8) is located in the direction of the belt conveyor tail. The lower ends of the front support leg (7) and the rear support leg (8) are fixedly connected to the support leg base (9) respectively. The support leg base (9) is firmly fixed to the ground on both sides of the belt conveyor. The height of the rear support leg (8) is greater than the height of the front support leg (7). The plane of the partition screen (6) is inclined downward in the direction of the machine head. A buffer spring (10) is installed between the bottom surface of the partition screen (6) and the top surface of the front support leg (7) and the rear support leg (8).
2. The buffer device for reducing the impact of large pieces of material on a belt conveyor according to claim 1, characterized in that: The partition screen (6) consists of screen bars (11), crossbeams (12) and partition screen guard plates (13). The screen bars (11) are multiple parallel steel bars. The length direction of the screen bars (11) is parallel to the running direction of the belt conveyor. There are gaps between the multiple screen bars (11). The width of the gaps matches the size of the large pieces of material. There are multiple crossbeams (12) at the lower end of the screen bars (11). The crossbeams (12) are vertically welded to the screen bars (11). The screen bars (11) and crossbeams (12) form a rectangular frame. Rectangular partition screen guard plates (13) are welded to the two sides and the rear end of the rectangular frame, respectively.