Buffering angle-adjustable multi-point feeding mechanism of belt conveyor
By designing a combined structure of buffer hopper and aggregate bin, along with adjustable baffles, the problems of excessive dust and material spillage during multi-point feeding of belt conveyors were solved, achieving uniform material distribution and efficient equipment operation, and improving safety and service life.
Patent Information
- Application Number
- CN202520461418.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-17
AI Technical Summary
During grain transportation, existing belt conveyors suffer from problems such as excessive dust, material spillage and breakage, and frequent equipment failures. In particular, when feeding at multiple points, they are prone to material leakage and equipment wear, affecting the working environment and safety.
A belt conveyor with adjustable angle and multi-point feeding mechanism was designed. By combining a buffer hopper and a material collection bin, the material is buffered and diverted. Combined with an adjustable baffle structure, the impact and spillage of the material are reduced, ensuring that the material is evenly distributed on the belt. Wear-resistant materials and flexible baffles are used to reduce wear and leakage.
It effectively reduces dust and material leakage, improves the safety of the working environment and the service life of the equipment, increases the belt conveyor area and output, reduces material leakage, and improves the working environment and equipment operation stability.
Smart Images
Figure CN223813033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The technical scheme belongs to the technical field of grain conveying machinery, and particularly relates to a buffer-adjustable-angle multi-point feeding mechanism of a belt conveyor. BACKGROUND
[0002] The belt conveyor is a commonly used device in the grain storage and transfer. Because of the particularity of the grain, the grain spillage and breakage need to be avoided at each node in the transfer process of the belt conveyor. The belt conveyor is a very common and universal conveying device for powder and granular materials, and the universal belt conveyor set is usually used when the belt conveyor is used for grain conveying. The grain dust contains a lot of starch, which is easy to combine with dust and moisture and stick to the equipment. When the grain spills and breaks, the problem is aggravated.
[0003] After the universal belt conveyor set is used, the dust in the working site exceeds the standard, the working environment is poor, and even there is a hidden danger of dust explosion. The leaked grain can enter the bottom layer of the belt conveyor or the ground around the conveyor. The material entering the bottom layer of the belt conveyor can increase the breakage of the material and cause equipment failure and shutdown due to accumulation at the bottom of the belt conveyor. The material spilled on the ground around the belt conveyor not only pollutes the material itself but also increases the workload of cleaning the working environment.
[0004] Especially in large grain stores, there are multiple feeding points in the feeding area of the belt conveyor. After the material is dropped at the previous feeding point, the material pile on the belt affects the dropping surface of the subsequent feeding point, causing the leakage of the material to be more serious when the material is dropped. SUMMARY
[0005] The utility model provides a buffer-adjustable-angle multi-point feeding mechanism of a belt conveyor. The scheme is suitable for the working condition of multi-point feeding, and the overall design idea is as follows:
[0006] Firstly, the dropping speed is slowed down to avoid the direct impact of the dropped material on the surface of the belt, reduce the collision between the grain particles and the kinetic energy of the grain particles to avoid the leakage of the material, and also reduce the amount of the dropped material on the unit length of the belt, reduce the size of the material pile, and provide a larger dropping space for the subsequent feeding point;
[0007] Further, the shape of the material pile at the dropping point is considered, the material blocking range is adaptively changed according to the sequence of the dropping points, the final load shape on the belt is reasonable, the grain is relatively stable on the belt, and the probability of sliding off the material pile is reduced.
[0008] The specific scheme is as follows.
[0009] A kind of adjustable angle multi-point feeding mechanism of buffer of belt conveyor, including belt conveyor, there are multiple feeding points in the feeding area of belt conveyor, these feeding points are arranged along the advancing direction of belt on belt conveyor.The feeding structure of any feeding point includes buffer hopper, buffer hopper includes upper and lower communication sub-bin and accumulation bin;
[0010] With the advancing / retreating direction of belt as front / back;
[0011] The sub-bin is hollow cuboid shell;The top of sub-bin is open, as the feeding port of buffer hopper;
[0012] The sub-bin is hollow cuboid shell;The top of sub-bin is open, as the feeding port of buffer hopper;
[0013] The accumulation bin is hollow shell, the radial section of hollow shell is isosceles trapezoid, and the large base of trapezoid is up, and the small base is down;The top end surface of accumulation bin connects the lower end surface of sub-bin, and the two end surfaces coincide;The open bottom surface of accumulation bin is as the discharge port of buffer hopper;
[0014] The projection of discharge port on the surface of belt is in the projection area of sub-bin on the surface of belt.
[0015] As optimization, for multiple feeding points from back to front, the distance from left edge to right edge of discharge port of each buffer hopper is sequentially increased.Under this design, the material dropping area of previous feeding point is more concentrated in the middle position of belt, and the material dropping area of subsequent feeding point is gradually dispersed, which is beneficial to the uniformity of material pile.
[0016] Further, it also includes material blocking mechanism;Material blocking mechanism is a pair of baffle installed on the left and right side walls outside buffer hopper;The bottom edge of baffle is in contact with the surface of belt, and the top edge of baffle is connected to the outer wall of accumulation bin;The bottom and the surface of belt are surrounded by the baffle on both sides and the accumulation bin, and the radial section of load cavity is horn-shaped with large bottom and small top.
[0017] As optimization, for multiple feeding points from back to front, the distance between the bottom edges of the baffles on both sides of each buffer hopper is sequentially increased.As the width of material pile gradually increases, the material blocking area of baffle gradually increases.The purpose of increasing the width of discharge port is also to make the material pile more uniform.
[0018] Preferably, the baffle is a rubber material blocking skin.Rubber material is a material with elasticity, which can avoid hard collision between grain and baffle when blocking material.The baffle can also be made of other materials with elastic surface, or even softer material such as canvas.
[0019] Further, the bottom edge of the baffle is connected with a brush (to reduce the wear of the belt and to block the material).
[0020] Further, the connecting structure between the baffle and the side wall of the buffer material collecting hopper is:
[0021] The upper part of the baffle is connected with a clamping plate, and the first end and the second end of the clamping plate are connected with rotating shafts;
[0022] A pair of connecting plates are connected on the side wall of the buffer material collecting hopper, and the rotating shafts at the first end and the second end of the clamping plate are connected with the connecting plates through bearing devices, respectively;
[0023] A limiting hole is further formed on at least one of the connecting plates, and the limiting hole is an arc-shaped waist hole; correspondingly, an ear plate is connected on the clamping plate, and a bolt is connected on the ear plate;
[0024] With the rotation of the clamping plate, the path of the bolt is in the arc-shaped waist hole, and a nut is loosely screwed on the bolt;
[0025] With the rotation of the clamping plates on the left and right baffles, the distance between the bottom edges of the two baffles increases or decreases.
[0026] The problems solved by the present scheme mainly include:
[0027] 1. The material directly impacts the bottom belt conveyor from the feeding port at high speed, which increases the dust overflow and the impact force also causes the material to leak.
[0028] At the same time, after using the present scheme, the grain is concentrated in the middle position of the belt, which avoids the deviation caused by uneven distribution of the conveying belt.
[0029] 2. Although the baffle / material blocking belt solves the problem of grain leakage, the fixed-angle inwardly inclined baffle / material blocking belt reduces the utilization area of the conveying belt and the conveying capacity, and when multiple feeding points are used, the material in the subsequent process easily impacts other material blocking belts of the discharge port and causes leakage. Therefore, an adjusting mechanism of the baffle / material blocking belt is designed to make the material blocking belt always adhere to the conveying belt and reduce the material leakage.
[0030] The effects of the present scheme include:
[0031] The buffer adjustable-angle multi-point feeding mechanism of the belt conveyor can be applied to a wide variety of materials, and can be applied to various grains and other granular materials with good fluidity.
[0032] The distributor designed on the top of the feeding port of the buffer material collecting hopper and the material collecting hopper with a buffering effect designed below the distributor make the material slowly and evenly fall into the belt conveyor, thereby reducing the dust and material leakage caused by the impact of the material and reducing the uneven distribution of the material.
[0033] Reduced dust and material leakage improves the working environment and enhances workplace safety. Both are constructed from wear-resistant steel, increasing their service life.
[0034] The baffle / retaining plate is designed with an outward V-shape and inclined structure. Because it actively blocks material, even if the material pile has a large coverage width, there is little leakage, which increases the unit area of the belt conveyor and thus increases the efficiency of the belt conveyor. The outward V-shape and inclined mechanism prevents the material in the later stage from hitting other outlet baffles / retaining plates when there are multiple feeding points, further reducing material leakage.
[0035] The added baffle / material retainer angle adjustment mechanism can infinitely adjust the pressure and friction of the material retainer against the conveyor belt, ensuring that the baffle / material retainer always adheres to the conveyor belt while reducing unnecessary friction, reducing material leakage, and increasing the service life of the material retainer and the conveyor belt. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0037] Figure 2 This is a schematic diagram of the single-point feeding mechanism. Figure 1 (Right-side view)
[0038] Figure 3 This is a schematic diagram of the material blocking mechanism. Figure 1 (Right-side perspective).
[0039] In the diagram: 1. Belt conveyor; 2. Feeding area; 3. Feeding point; 4. Buffer hopper; 5. Distribution bin; 6. Aggregator; 7. Distributor; 8. Belt; 9. Material retainer; 10. Loading cavity; 11. Clamping plate; 12. Rotating shaft; 13. Connecting plate; 14. Limiting hole; 15. Ear plate; 16. Bolt; 17. Limiting hole. Detailed Implementation
[0040] The present solution will be further described below with reference to the accompanying drawings and specific embodiments.
[0041] In order to increase the reliability, output and environmental friendliness of multi-point discharge of belt conveyors, this utility model develops a belt conveyor with adjustable angle buffer and multi-point feeding mechanism.
[0042] ① Adopting a material distribution and buffer design reduces dust and material leakage caused by material impact, and reduces uneven material distribution.
[0043] ② The design of the baffle / material retainer has been optimized to increase the belt conveyor area and increase the conveying output.
[0044] ③ Adding a baffle adjustment mechanism helps ensure that the baffle / baffle skin always fits the conveyor belt, further reducing the risk of material leakage.
[0045] As Figure 2 , in the prior art, the feeding belt of the belt conveyor is supported by a plurality of rollers, and under the support of the rollers, the cross section of the belt is similar to an arc shape with high sides and low middle. In this embodiment, the common structure is described.
[0046] Referring to Figure 1 and Figure 2 , a buffer adjustable angle multi-point feeding mechanism of a belt conveyor includes a belt conveyor 1, a plurality of feeding points 3 in the feeding area 2 of the belt conveyor, which are arranged along the advancing direction of the belt 8 on the belt conveyor, and the feeding structure of any feeding point includes a buffer hopper 4, which includes a distribution bin 5 and a gathering bin 6 connected in series.
[0047] The advancing / retreating direction of the belt is forward / backward.
[0048] The distribution bin 5 is a hollow cuboid shell; the top of the distribution bin is open as the feeding port of the buffer hopper.
[0049] A distributor 7 is connected in the hollow of the distribution bin, and the front and rear ends of the distributor are connected to the front and rear walls of the distribution bin respectively; the radial cross section of the distributor 7 is an isosceles triangle, the top angle of the triangle faces upward, and the median of the triangle vertically passes through the center line of the belt; the hollows on the left and right sides of the distributor are material flow channels in the distribution bin.
[0050] The gathering bin 6 is a hollow shell, and the radial cross section of the hollow shell is an isosceles trapezoid, and the large base of the trapezoid is on the top and the small base is on the bottom; the top end surface of the gathering bin is connected to the lower end surface of the distribution bin, and the two end surfaces coincide; the open bottom surface of the gathering bin is the discharge port of the buffer hopper; the projection of the discharge port on the surface of the belt is within the projection area of the distributor on the surface of the belt.
[0051] It also includes a material blocking mechanism; the material blocking mechanism is a pair of baffles installed on the left and right side walls outside the buffer hopper; the bottom edge of the baffle is in contact with the surface of the belt, and the top edge of the baffle is connected to the outer wall of the gathering bin; the bottom of the gathering bin 6 and the two side baffles and the belt 8 form a load cavity 10, and the radial cross section of the load cavity is a horn shape with a large bottom and a small top.
[0052] The baffle is a rubber material blocking skin 9. The bottom edge of the baffle is connected to a strip brush. In this example, the lower part of the baffle is concave arc-shaped, which is beneficial to the shaping of the material pile.
[0053] In the figure: belt conveyor 1, feeding area 2, feeding point 3, buffer hopper 4, distribution bin 5, gathering bin 6, distributor 7, belt 8, material blocking skin (baffle) 9, load cavity 10, clamp 11, rotating shaft 12, connecting plate 13, limiting hole 14, ear plate 15, bolt 16, limiting hole 17.
[0054] Referring toFigure 3 The connecting structure between the baffle and the side wall of the buffer hopper is:
[0055] The upper part of the baffle is connected to the clamping plate 11, and the clamping plate has a rotating shaft 12 at the head and tail ends thereof;
[0056] A pair of connecting plates 13 are connected to the side wall of the buffer hopper, and the two connecting plates are respectively connected to the rotating shaft 12 at the head and tail ends of the clamping plate through bearing devices;
[0057] A limiting hole 17 is further formed in at least one of the connecting plates, and the limiting hole is an arc-shaped waist hole; correspondingly, an ear plate 15 is connected to the clamping plate, and a bolt 16 is connected to the ear plate;
[0058] With the rotation of the clamping plate, the path of the bolt 16 is in the arc-shaped waist hole, and a nut is loosely screwed on the bolt;
[0059] With the rotation of the clamping plates on the left and right baffles, the distance between the bottom edges of the two baffles is large or small.
[0060] Referring again to Figure 1 For multiple feeding points from back to front, the distance from the left edge to the right edge of the discharge port of each buffer hopper is sequentially increased. For multiple feeding points from back to front, the distance between the bottom edges of the two side baffles of each buffer hopper is sequentially increased.
[0061] In this example:
[0062] ①A distributor is designed at the top of the feeding port, and a material gathering bin is designed below the distributor. The material first flows to both sides through the distributor, and then the slowed-down material enters the two sides of the material gathering bin for buffering and further slowing down. Both the distributor and the material gathering bin are made of wear-resistant steel.
[0063] ②The material blocking skin is designed as an outer eight-shaped inclined structure with a flexible inclination angle that fits the conveying belt.
[0064] ③The material blocking adjusting mechanism of the material blocking skin can infinitely adjust the angle of the material blocking skin fitting the conveying belt.
Claims
1. A belt conveyor with a cushioned adjustable angle multi-point feeding mechanism, comprising a belt conveyor, a plurality of feeding points in the feeding area of the belt conveyor, the feeding points being arranged along the advancing direction of the belt on the belt conveyor, characterized in that The feeding structure of any feeding point comprises a buffer hopper, which comprises a distribution bin and a gathering bin in communication with each other; The advancing / receding direction of the belt is the front / rear direction; The distribution bin is a hollow cuboid shell; the top of the distribution bin is open, serving as a feeding port of the buffer hopper; A distributor is connected in the hollow of the distribution bin, and the front and rear ends of the distributor are connected to the front and rear walls of the distribution bin, respectively; the radial section of the distributor is an isosceles triangle, the top angle of the triangle faces upward, and the median of the triangle vertically passes through the center line of the belt; the hollows on the left and right sides of the distributor are material flow channels in the distribution bin; The gathering bin is a hollow shell, and the radial section of the hollow shell is an isosceles trapezoid, with the large base on top and the small base on bottom; the top end surface of the gathering bin is connected to the lower end surface of the distribution bin, and the two end surfaces coincide; the open bottom surface of the gathering bin serves as a discharge port of the buffer hopper; The projection of the discharge port on the surface of the belt is within the projection area of the distributor on the surface of the belt.
2. The belt conveyor cushioned adjustable angle multi-point feeding mechanism according to claim 1, characterized in that For multiple feeding points from rear to front, the distance from the left edge to the right edge of the discharge port of each buffer hopper increases in turn.
3. The belt conveyor cushioned adjustable angle multi-point feeding mechanism according to claim 1, characterized in that The feeding device further comprises a material blocking mechanism; the material blocking mechanism is a pair of baffles installed on the left and right side walls of the buffer hopper; the bottom edge of the baffle is in contact with the surface of the belt, and the top edge of the baffle is connected to the outer wall of the gathering bin; the two side baffles, the bottom of the gathering bin and the belt form a load cavity, and the radial section of the load cavity is a horn shape with the large base on bottom and the small base on top.
4. The belt conveyor cushioned adjustable angle multi-point feeding mechanism according to claim 3, characterized in that For multiple feeding points from rear to front, the distance between the bottom edges of the two side baffles of each buffer hopper increases in turn.
5. The belt conveyor cushioned adjustable angle multi-point feeding mechanism according to claim 3, characterized in that The baffle is a rubber material blocking skin.
6. The belt conveyor cushioned adjustable angle multi-point feed mechanism of claim 3, wherein The bottom edge of the baffle is connected to a strip brush.
7. The belt conveyor cushioned adjustable angle multi-point feed mechanism of claim 3, wherein The connection structure between the baffle and the side wall of the buffer hopper is: The upper part of the baffle is connected to a clamping plate, and the first and second ends of the clamping plate are connected to rotating shafts; A pair of connecting plates are connected to the side wall of the buffer hopper, and the two connecting plates are connected to the rotating shafts at the first and second ends of the clamping plate through bearing devices; A limiting hole is further formed in at least one connecting plate, and the limiting hole is an arc-shaped waist hole; correspondingly, an ear plate is connected to the clamping plate, and a bolt is connected to the ear plate; With the rotation of the clamping plate, the path of the bolt is in the arc-shaped waist hole, and a nut is loosely screwed on the bolt; With the rotation of the clamping plates on the two baffles, the distance between the bottom edges of the two baffles increases or decreases.