Conveying belt for particle feeding device
By adopting a combination structure of chain belt plates and rubber strips in the pellet feeding device, the problems of conveyor belt deviation, slippage and wear are solved, the service life and yield are improved, and efficient and stable pellet material transportation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYUN INTERNATIONAL ENGINEERING CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-21
AI Technical Summary
Existing granular feeding devices have problems such as easy deviation, slippage, rapid wear, and low yield of conveyor belts, especially belt and chain feeding devices when transporting granular materials.
Using chain belt plates as the base, combined with elliptical through holes and alloy pins and pin buckle connection structures, and rubber strips laid on the chain belt plates to form a leak-proof box structure, it enhances transmission stability and wear resistance, while the rubber strips provide a protective layer to reduce wear.
It improves the service life of conveyor belts and the yield of finished granules, reduces the workload of workers in maintenance, solves the problems of easy deviation, slippage and wear of traditional conveyor belts, and improves transportation efficiency.
Smart Images

Figure CN224146898U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of conveying machinery and equipment, and specifically relates to a conveyor belt for a pellet feeding device. Background Technology
[0002] With the acceleration of my country's industrialization, feeding devices used for material conveying in industrial production are also being updated and iterated. Initial discontinuous feeding devices (such as K-type reciprocating feeders) have been gradually phased out due to their disadvantages such as high drive power, small feeding capacity, low working efficiency, and large maintenance workload.
[0003] Currently, the most mature type of feeding device in the market is the continuous feeding device. Among them, the continuous feeding devices used for pellet feeding are further divided into various types such as belt feeding devices, axle belt feeding devices, and chain belt feeding devices, depending on the type of conveyor belt. However, they still have the following disadvantages:
[0004] 1) Belt feeder: This device can continuously feed materials, has adjustable material handling, and high transportation efficiency, and is widely used in conveying light and soft particles. However, its belt is prone to deviation and slippage during operation; the belt is easily torn and damaged by the impact of large pieces of material or by hard iron wires and other foreign objects in the material; the belt is prone to stretching and requires a tensioning device; and the belt is prone to aging, has a short service life, requires frequent replacement, and has a large workload for maintenance workers.
[0005] 2) Armored Belt Feeder: This device adds an armor layer to the entire surface of the conveyor belt, increasing its load-bearing capacity. It can transport not only lightweight materials such as coal and grain, but also some hard granular materials, further expanding its application range compared to traditional belt feeders. However, the armor and belt have different elongation rates, making tensioning difficult during synchronous operation and prone to slippage and asynchrony. When transporting materials with high moisture content, slippage is likely, resulting in poor driving performance. It is also prone to malfunctions during operation, requiring significant maintenance. Furthermore, the conveyor belt is easily worn, making replacement relatively difficult.
[0006] 3) Chain-belt feeding device: This device uses a chain-tooth roller drive, which has high transmission efficiency and stability. The conveyor belt is a rigid steel armor belt, without rubber belt, with a large load-bearing capacity and no conveying problems such as deviation, slippage, or tearing. It can transport a variety of materials, including light, hard, and heavy materials, and can handle a wide range of material types. However, its conveyor belt surface has no damping or buffering device, which will reduce the yield when transporting materials with high particle size requirements, and is prone to wear on the chain belt when transporting hard granular materials, reducing its service life.
[0007] Therefore, there is an urgent need to design a new type of conveyor belt for pellet feeding devices, while solving the problems of easy deviation and slippage in belt conveyor operation and low finished product yield in chain conveyor. Utility Model Content
[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a conveyor belt for a pellet feeding device, which improves the yield of transported pellets and extends the service life of the conveyor belt while maintaining the high load-bearing capacity of the chain tooth roller drive.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: a conveyor belt for a pellet feeding device, comprising a pin, a chain belt abutment, a rubber strip, a pin buckle, a chain roller, and a fixing nut; wherein the cross-section of the chain belt abutment is elliptical, and a rubber strip is applied to the upper surface of the chain belt abutment, the rubber strip being of the same length along the axial direction of the chain belt abutment, and its width being greater than 1 / 2 and less than 3 / 4 of the transverse width of the chain belt abutment; the interior of the chain belt abutment is provided with two through holes along the axial direction, and the two through holes are symmetrical about the vertical line of the cross-section. It is said that a pin is connected through both through holes, and a pin buckle is sleeved on the ends of the two pins between two adjacent chain belt plates, and the two adjacent chain belt plates are connected together by the pin buckle. A chain roller is also sleeved on each pin located outside the pin buckle. The two pins on the same chain belt plate located outside the chain roller are also connected by a pin buckle, and a fixing nut is connected to each pin of the outermost pin buckle. The two ends of the conveyor belt are connected to the chain teeth of the chain tooth roller through the gap between two adjacent chain rollers.
[0010] Furthermore, the chain toothed roller is provided in two parts, namely a head drive roller and a tail idler roller. The conveyor belt meshes and operates on the drive roller and the idler roller, and is driven and connected through the drive roller.
[0011] Furthermore, anti-leakage baffles are provided between the two ends of the chain belt axle and the pin buckle, and the chain belt axle, rubber strip, and anti-leakage baffles together form a leak-proof box.
[0012] Furthermore, the anti-leakage baffle is composed of multiple adjacent pieces, and two adjacent anti-leakage baffles are connected by magnets embedded on the left and right sides. It is designed to be retractable and pull-out in the vertical direction. The pull-out position is limited and fixed by setting elastic protrusions in the upper baffle to cooperate with the fixed round holes in the lower baffle.
[0013] Furthermore, the rubber strip is connected and fixed to the upper end face of the chain belt armor plate by vulcanization.
[0014] Furthermore, the width of the rubber strip is the same as the spacing between the two through holes on the chain strap plate.
[0015] Furthermore, the pin is made of Cr alloy, the chain strap plate is made of Mn alloy, and the pin buckle is made of Cr alloy.
[0016] The beneficial effects of this utility model are:
[0017] 1) In this utility model device, a chain belt is used as the basic conveyor belt, and an elliptical armor plate is used to pass through an alloy pin and be connected by a pin buckle to construct the conveyor belt. This not only retains the advantages of current continuous feeding devices, such as large load-bearing capacity, good transmission effect, wide application range, and no working condition problems such as deviation, slippage, and tearing, but also solves the problems of fast conveyor belt wear and poor integrity of transported granules by applying rubber strips. It has the characteristics of long service life of conveyor belt, small amount of worker maintenance workload and high yield of transported granules.
[0018] 2) The chain belt plates, pins, and pin buckles in this utility model device are all made of alloy materials, which can ensure that the chain belt transmission has high strength, good wear resistance, strong impact resistance, and is not easily deformed when subjected to heavy load impact, and has a long service life; making the transmission reliable and the operation smooth, avoiding phenomena such as deviation, slippage, and tearing when transporting granular materials.
[0019] 3) In this utility model device, the rubber strip is set above the chain belt plate 2. Its width is greater than 1 / 2 and less than 3 / 4 of the transverse width of the chain belt plate 2. The width setting does not affect the operation of the chain belt along the chain tooth roller, and the gap between two adjacent rubber strips can store some loose material, which is equivalent to forming a "soft protective layer" on the surface of the chain belt. When the granular product impacts the material, this "protective layer" can reduce the impact of the material on the chain belt, and also reduce the probability of the granular finished product hitting the steel chain belt and cracking into powder when it enters the feeding device, thus improving the integrity of the granular finished product.
[0020] 4) In order to prevent side leakage of granular materials during the conveying process, which would have an adverse effect on the meshing of the chain teeth on both sides, the device of this utility model is equipped with anti-side leakage baffles at the pin buckles on both sides of the conveyor belt, forming an integral leakage-blocking structure with the conveyor belt, which can prevent leakage from multiple directions; and it has a built-in height adjustment function, which can be freely adjusted according to the needs of use, so as to meet the usage requirements to the greatest extent. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the radial connection structure of the conveyor belt of this utility model;
[0022] Figure 2 This is a schematic diagram of the axial connection structure of the conveyor belt of this utility model.
[0023] In the diagram, 1-pin, 2-chain belt plate, 3-rubber strip, 4-pin buckle, 5-chain roller, 6-fixing nut, 7-chain tooth roller, 8-anti-leakage baffle. Detailed Implementation
[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0025] Example: Figure 1 and Figure 2 As shown, this utility model provides a conveyor belt for a pellet feeding device, including a pin 1, a chain belt apron 2, a rubber strip 3, a pin buckle 4, a chain roller 5, and a fixing nut 6; the pin 1 is made of Cr alloy material, the chain belt apron 2 is made of Mn alloy material, and the pin buckle 4 is made of Cr alloy material, which can ensure that the chain belt transmission has high strength, good wear resistance, strong impact resistance, is not easily deformed when subjected to heavy load impact, and has a long service life.
[0026] The cross-section of the chain belt plate 2 is elliptical, with two through holes axially arranged inside. The two through holes are symmetrical about the vertical symmetry line of the cross-section. A pin 1 is connected through each of the two through holes. A pin buckle 4 is sleeved on the ends of the two pins 1 between two adjacent chain belt plates 2, and the two adjacent chain belt plates 2 are connected together by the pin buckle 4. A chain roller 5 is also sleeved on each pin 1 outside the pin buckle 4. Two pins 1 on the same chain belt plate 2 outside the chain roller 5 are also connected by a pin buckle 4. A fixing nut 6 is connected to each pin 1 of the outermost pin buckle 4. The two ends of the conveyor belt are connected to the chain teeth of the chain tooth roller 7 through the gap between two adjacent chain rollers 5.
[0027] There are two chain rollers 7, namely the head drive roller and the tail idler roller. The conveyor belt meshes with the drive roller and the idler roller and is connected through the drive roller.
[0028] A rubber strip 3 is applied to the upper surface of the chain belt axle 2. The rubber strip 3 is connected and fixed to the upper end face of the chain belt axle 2 by vulcanization. The rubber strip 3 is of the same length along the axial direction of the chain belt axle 2, and its width is greater than 1 / 2 and less than 3 / 4 of the transverse width of the chain belt axle 2. The width of the rubber strip 3 is the same as the spacing between the two through holes on the chain belt axle 2.
[0029] Both ends of the chain belt plate 2 are also equipped with anti-leakage baffles 8 between the pin buckle 4 and the chain belt plate 2. The chain belt plate 2, rubber strip 3, and anti-leakage baffles 8 together form a leak-proof box. The anti-leakage baffles 8 are multiple pieces arranged close together. Two adjacent anti-leakage baffles 8 are connected by magnetic pieces embedded on the left and right sides. They are designed to be retractable and pull-out in the vertical direction. The pull-out position is limited and fixed by setting elastic protrusions in the upper baffle and connecting them to the fixed round holes in the lower baffle.
[0030] Work process:
[0031] The drive roller at the head drives the connecting conveyor belt to rotate. The gap between two adjacent chain rollers 5 at both ends of the conveyor belt meshes with the chain teeth of the chain tooth roller 7, so that the chain belt plate 2 is driven forward under the connection of the pin buckle 4. Shallow grooves are formed on the belt surface between adjacent rubber strips 3, which can store some loose material during operation. This not only reduces the direct impact of particles on the chain belt, reduces chain belt wear, and improves chain belt life, but also reduces the probability of the finished particles hitting the conveyor chain belt and cracking into powder when entering the feeding device, thus improving the integrity of the finished particles.
[0032] This utility model device uses a chain belt as the basic conveyor belt and adopts a structure in which elliptical plates are threaded through alloy pins and connected by pin buckles to construct the conveyor belt. This not only retains the advantages of current continuous feeding devices, such as large load-bearing capacity, good transmission effect, wide application range, and no working condition problems such as deviation, slippage, and tearing, but also solves the problems of fast conveyor belt wear and poor integrity of transported granules by applying rubber strips. It has the characteristics of long service life of conveyor belt, low workload of worker maintenance, and high yield of transported granules.
[0033] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A conveyor belt for a granular feed device, characterized by: It includes a pin (1), a chain belt plate (2), a rubber strip (3), a pin buckle (4), a chain roller (5), and a fixing nut (6); wherein the cross-section of the chain belt plate (2) is elliptical, and a rubber strip (3) is laid on the upper surface of the chain belt plate (2). The rubber strip (3) is set to be of the same length along the axial direction of the chain belt plate (2), and its width is greater than 1 / 2 and less than 3 / 4 of the transverse width of the chain belt plate (2); The inner side of the chain belt plate (2) is provided with two through holes along the axial direction, and the two through holes are symmetrical about the vertical symmetry line of the cross section. A pin (1) is connected through each of the two through holes. A pin buckle (4) is sleeved on the ends of the two pins (1) between two adjacent chain belt plates (2), and the two adjacent chain belt plates (2) are connected together by the pin buckle (4). A chain roller (5) is also sleeved on each pin (1) outside the pin buckle (4). The two pins (1) on the same chain belt plate (2) outside the chain roller (5) are also sleeved and connected by a pin buckle (4). A fixing nut (6) is connected to each pin (1) of the outermost pin buckle (4). The two ends of the conveyor belt are connected to the chain teeth of the chain tooth roller (7) through the gap between the two adjacent chain rollers (5).
2. A conveyor belt for a granular material feeding device according to claim 1, characterized in that: The chain toothed roller (7) is provided in two parts, namely the head drive roller and the tail idler roller. The conveyor belt meshes and runs on the drive roller and the idler roller, and is connected by the drive roller.
3. A conveyor belt for a granular material feeding device according to claim 1, characterized in that: The two ends of the chain belt armor plate (2) are also provided with anti-leakage baffles (8) between the pin buckle (4). The chain belt armor plate (2), rubber strip (3), and anti-leakage baffles (8) together form a leak-proof box.
4. A conveyor belt for a granular material feeding device according to claim 3, characterized in that: The anti-leakage baffle (8) consists of multiple pieces arranged close together. Two adjacent anti-leakage baffles (8) are connected by magnets embedded on the left and right sides and are designed to be retractable and pullable in the vertical direction. The pull-out position is limited and fixed by setting elastic protrusions in the upper baffle and connecting them to the fixed round holes in the lower baffle.
5. A conveyor belt for a granular material feeding device according to claim 1, characterized in that: The rubber strip (3) is connected and fixed to the upper surface of the chain belt armor plate (2) by vulcanization.
6. A conveyor belt for a granular material feeding device according to claim 1 or 5, characterized in that: The width of the rubber strip (3) is the same as the spacing between the two through holes on the chain belt armor plate (2).
7. A conveyor belt for a pellet feeding device according to claim 1, characterized in that: The pin (1) is made of Cr alloy, the chain belt plate (2) is made of Mn alloy, and the pin buckle (4) is made of Cr alloy.