A new material blanking buffer device
By employing a buffer device combining elastic elements and buffer rollers on the belt conveyor, the problem of equipment damage during material fall is solved by utilizing dual buffering and transferring impact force, thereby achieving equipment protection and reducing material leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG HANFENGHUA MASCH EQUIP CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-12
Smart Images

Figure CN224349632U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of material conveying technology, and specifically relates to a novel material drop buffer device. Background Technology
[0002] Belt conveyors, as continuous transport machinery, are widely used in docks, coal mines, metallurgy, papermaking, and other fields. In the current process of transporting bulk materials using belt conveyors, when two belt conveyors are transferring goods, material may fall from one belt conveyor onto the other. Due to the height difference between the two belt conveyors, the falling material will impact the lower belt conveyor. If this impact force is not effectively eliminated, it will damage the idlers, conveyor belts, belt supports, etc., of the lower belt, affecting the service life of the equipment.
[0003] Currently, there are two main solutions to this problem:
[0004] 1. A buffer bed is used at the material drop point. The buffer bed is mainly composed of a support frame and buffer strips. The support frame is made of Q235 carbon steel, and the buffer strips are assembled with high molecular weight polyethylene and rubber. The elasticity of the rubber itself is used to play a buffering role. 2. Multiple sets of buffer rollers are arranged at the material drop point. The outer surface of the buffer rollers has a 10-20mm thick rubber layer. The elasticity of the rubber itself plays a buffering role.
[0005] However, due to the inherent limitations of rubber, the above two methods cannot provide good protection for large pieces of material or situations with large drop heights. In actual production, this can lead to a series of problems such as damage to the idler rollers at the drop point, damage to the idler roller brackets, and damage to the belt. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide a new type of material dropping buffer device to reduce the impact of material dropping on the equipment, in order to address the shortcomings of the existing technology.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A novel material discharge buffer device includes multiple sets of support frames symmetrically arranged on both sides of a conveyor. Connectors are slidably arranged on the support frames, and elastic elements are connected between the connectors and the support frames. The connectors on both sides of the conveyor are connected by buffer rollers, and a buffer layer is provided on the outer side of the buffer rollers.
[0009] To better realize this utility model, the above structure is further optimized, and the elastic element is a spring.
[0010] To better realize this utility model, the above structure is further optimized, and the spring is a disc spring or a tower spring.
[0011] To better realize this utility model, the above structure is further optimized. The connector slides through the support frame, a baffle is provided on the top of the connector, and a disc spring is provided between the baffle and the support frame.
[0012] To better realize this utility model, the above structure is further optimized by setting multiple buffer rollers in series, forming a U-shaped structure, with adjacent buffer rollers being rotatably connected.
[0013] To better realize this utility model, the above structure is further optimized by including a hanging assembly, and two adjacent buffer rollers are rotatably connected by the hanging assembly.
[0014] To better realize this utility model, the above structure is further optimized by rotatably connecting the support frame and the buffer roller through a hanging assembly.
[0015] To better realize this utility model, the above structure is further optimized, and the buffer layer is made of rubber.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] The novel material drop buffer device provided by this utility model uses a combination of elastic elements and buffer rollers to buffer the falling material. The double buffering reduces the impact of falling material on the conveyor below. At the same time, multiple buffer rollers can be connected in series to form a U-shaped structure to reduce material leakage caused by impact. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is one of the application diagrams of the novel material feeding buffer device of this utility model;
[0020] Figure 2 This is the second schematic diagram of the application of the novel material feeding buffer device of this utility model;
[0021] Figure 3 This is a schematic diagram of the overall structure of the novel material feeding buffer device of this utility model;
[0022] Figure 4 This is a schematic diagram of the connection structure between the connector and the support frame in this utility model.
[0023] In the picture:
[0024] 1-Support frame, 2-Connector, 201-Baffle, 3-Elastic component, 4-Buffer roller, 5-Buffer layer, 6-Hanging assembly, 10-Upper conveyor, 11-Lower conveyor, 12-Material. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Please refer to Figures 1-4This utility model provides a novel material drop buffer device, comprising multiple sets of support frames 1 symmetrically arranged on both sides of a conveyor. Connecting members 2 are slidably mounted on the support frames 1, and elastic members 3 are connected between the connecting members 2 and the support frames 1. The elastic member 3 is a spring, which can be a disc spring or a pagoda spring. In this embodiment, a disc spring is selected because disc springs have high stiffness, strong buffering and vibration absorption capacity, and can withstand large loads with small deformations, making them suitable for applications with limited axial space. The elastic member 3 serves as the first-level buffer mechanism, playing a major buffering role. The impact force of the falling material 12 causes the disc spring to contract, and then the disc spring repeatedly rebounds and contracts, dissipating the impact energy of the material 12.
[0029] The principle for calculating the dimensions of a disc spring is as follows:
[0030] G1 = K1 * G2;
[0031] G1=mgh;
[0032] G2 = 1 / 2KX²n.
[0033] Where: G1 is the material impact energy;
[0034] G2 is a disc spring that absorbs energy;
[0035] m is the mass of the material, in kg;
[0036] g is the acceleration due to gravity, with units of m / s².
[0037] h is the material drop height difference, in meters (m).
[0038] K1 is the safety factor of the novel material feeding buffer device of this application;
[0039] K is the stiffness of the disc spring;
[0040] X is the displacement of the disc spring;
[0041] n is the number of disc spring groups in this application.
[0042] For each specific case, the material impact energy G1 is fixed. The stiffness K and displacement X of the disc spring can be calculated to determine the specific dimensions of the disc spring, thereby precisely controlling the buffering effect of the disc spring and providing corresponding design solutions for different working conditions.
[0043] The connecting parts 2 on both sides of the conveyor are connected by buffer rollers 4. A buffer layer 5 is provided on the outside of the buffer rollers 4. The buffer layer 5 is made of rubber and plays a double buffering role.
[0044] This application uses a combination of elastic element 3 and buffer roller 4 to buffer the falling material 12, thereby reducing the impact of falling material on the lower conveyor 11.
[0045] like Figure 4 As shown, in this embodiment, the connector 2 is slidably mounted on the support frame 1, and a baffle 201 is provided on the top of the connector 2. A disc spring is provided between the baffle 201 and the support frame 1 to withstand the pressure given by the falling material 12.
[0046] like Figure 3 As shown, three buffer rollers 4 are connected in series, forming a U-shaped structure. Adjacent buffer rollers 4 are rotatably connected, and this U-shaped structure reduces material leakage caused by impact. A hanging assembly 6 is also included, with adjacent buffer rollers 4 rotatably connected via the hanging assembly 6. Furthermore, the support frame 1 is also rotatably connected to the buffer rollers 4 via the hanging assembly 6. When the material 12 falls, the resulting impact force acts directly on the buffer rollers 4. This application utilizes the hanging assembly 6 to rotatably connect the components, converting a portion of the impact force into rotation between the components, thus providing a buffering effect for impact force transfer.
[0047] During operation, the material 12 on the upper conveyor 10 is transferred to the lower conveyor 11 below. The material 12 first falls onto the buffer roller 4. The combination of the elastic element 3 and the buffer roller 4 buffers the falling material 12, thereby reducing the impact of the falling material on the lower conveyor 11. Finally, the material 12 slides off the buffer roller 4 onto the lower conveyor 11.
[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A novel material feeding buffer device, characterized in that: The system includes multiple sets of support frames (1) symmetrically arranged on both sides of the conveyor. Connectors (2) are slidably arranged on the support frames (1), and elastic members (3) are connected between the connectors (2) and the support frames (1). The connectors (2) on both sides of the conveyor are connected by buffer rollers (4), and a buffer layer (5) is provided on the outside of the buffer rollers (4). The elastic element (3) is a spring; The spring is a disc spring; The connector (2) is slidably mounted on the support frame (1), and a baffle (201) is provided on the top of the connector (2). The disc spring is disposed between the baffle (201) and the support frame (1).
2. The novel material feeding buffer device according to claim 1, characterized in that: Multiple buffer rollers (4) are connected in series, and all the buffer rollers (4) form a U-shaped structure. The two adjacent buffer rollers (4) are rotatably connected.
3. The novel material feeding buffer device according to claim 2, characterized in that: It also includes a suspension assembly (6), which rotatably connects two adjacent buffer rollers (4) through the suspension assembly (6).
4. A novel material feeding buffer device according to claim 3, characterized in that: The support frame (1) and the buffer roller (4) are also rotatably connected through the hanging assembly (6).
5. A novel material feeding buffer device according to claim 4, characterized in that: The buffer layer (5) is made of rubber.