Buffer structure of steel lining rubber chute
By setting up an adaptive buffer structure with a slow-flow roller and rubber pads in the chute, the problems of impact and dust pollution caused by excessive material slippage speed are solved, achieving a safe and low-wear material conveying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HUANING TECHNOLOGY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-08
AI Technical Summary
In a chute, the material slides down too fast due to the smooth inner wall of the chute, causing problems such as high-speed impact, material splashing, equipment damage, and dust pollution.
Multiple sets of flow-retarding rollers are installed inside the chute. The flow-retarding rollers are mounted on the shaft seat and support seat via a rotating shaft. One end of the rotating shaft is placed inside a rubber pad. The increased pressure from the weight of the material increases the friction and reduces the rotation speed. Combined with the arc-shaped structure of the rubber pad and the adjustment of friction by the compression spring, an adaptive buffering mechanism is formed.
It effectively reduces the falling speed of materials, minimizes impact wear and dust pollution, protects equipment, and improves safety.
Smart Images

Figure CN224211703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chute technology, and in particular to a buffer structure for a steel-lined rubber chute. Background Technology
[0002] A chute is a device that uses gravity to transport materials. Its core structure consists of a chute and a support. When in operation, the material slides or flows along the surface of the chute from high to low under its own gravity, thus completing the transportation process.
[0003] The choice of materials for chutes is flexible, with common materials including metals such as stainless steel and steel plates, as well as non-metallic materials such as plastics and wood, depending on the characteristics of the materials and the application scenario. They are widely used in industries such as mining, metallurgy, chemicals, and building materials. During the use of chutes, if some materials slide down too fast due to the smooth inner wall of the chute, when the chute is conveying granular materials and the sliding speed is too fast, the high-speed moving particles will cause violent impacts due to inertia at the end of the chute or at the turning point, causing material to splash and injure personnel or damage equipment. At the same time, the continuous friction of particles against the chute accelerates the wear of the liner plates and may even cause the chute to perforate and leak. If the material is dust-like particles, the high-speed sliding will raise a large amount of dust, which not only pollutes the environment but also endangers human health. Utility Model Content
[0004] The purpose of this utility model is to provide a buffer structure for a steel-lined rubber chute. Multiple sets of slow-flow rollers are mounted between two shaft seats via a rotating shaft. One end of the rotating shaft is placed inside the rubber pad of the support seat. The larger the amount of material, the greater the pressure on the slow-flow rollers, the greater the pressure of the rotating shaft on the rubber pad, the greater the friction, and the slower the rotation speed of the slow-flow rollers. This reduces the falling speed of the material and reduces impact wear, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A buffer structure for a steel-lined rubber chute includes two mounting seats and two flow-retarding rollers. Two guide rails are fixedly installed on both sides of each mounting seat, and a bearing seat is movably installed between two of the guide rails. A support seat is movably installed between the other two guide rails. A base is fixedly installed at the bottom of each mounting seat. The two flow-retarding rollers are fixedly connected in the middle by a rotating shaft. The two ends of the rotating shaft are respectively inserted into one of the bearing seats, and the two ends of the rotating shaft also extend to the support seat.
[0007] As a further optimization of this utility model, the mounting base has a U-shaped structure, which provides installation space for the shaft seat and the support seat.
[0008] As a further optimization of this utility model, side plates are fixedly installed on both sides of the mounting base, and a reinforcing plate is fixedly connected between the side plates and the mounting base. The mounting base is fixedly installed on one side of the chute through the side plates on both sides.
[0009] As a further optimization of this utility model, multiple ball bearings are rotatably installed on both sides of the guide rail. The guide rail provides installation and sliding conditions for the shaft seat and the support seat, while the ball bearings reduce the frictional force of sliding between the shaft seat and the support seat.
[0010] As a further optimization of this utility model, a first sliding groove is provided on both sides of the bearing seat, and the first sliding groove is slidably connected to one of the guide rails.
[0011] As a further optimization of this utility model, a second sliding groove is provided on both sides of the support base, a rubber pad is fixedly installed on the top of the support base, the rubber pad is a downwardly concave arc structure, a U-shaped frame is fixedly installed on the bottom of the support base, and the second sliding groove is slidably connected to one of the guide rails. The shaft seat can provide adjustment for the rotational installation of the shaft, and in conjunction with the support base with the rubber pad on the top, the frictional resistance to the rotation of the shaft can be adjusted by the weight change of the material entering the chute.
[0012] As a further optimization of this utility model, a positioning seat is fixedly installed on the top of the base, and a fixed shaft is fixedly installed on the top of the positioning seat. The positioning seat is inserted into the lower part of the mounting base, and the upper end of the fixed shaft is inserted into the shaft hole at the bottom of the U-shaped frame. A compression spring is also fitted on the fixed shaft located between the U-shaped frame and the positioning seat. The fixed shaft and the compression spring can provide support for the support seat. Thus, when the rotating shaft presses down on the support seat, the compressed spring provides a reverse force to the support seat, thereby controlling the adaptive adjustment of the friction force of the rubber pad on the rotating shaft.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] In this invention, multiple sets of slow-flow rollers are installed in the chute, and the slow-flow rollers are mounted between two bearing seats via a rotating shaft. One end of the rotating shaft is also placed in a rubber pad on the support seat. This means that the greater the amount of material entering the chute, the greater the pressure applied to the slow-flow rollers, which in turn increases the pressure of the rotating shaft against the rubber pad, thereby increasing the friction of the slow-flow roller rotation. This, in turn, helps to reduce the falling speed of the material in the chute. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the mounting base structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the disassembled structure of the mounting base of this utility model;
[0018] Figure 4 This is a schematic diagram of the installation of the main structure of this utility model.
[0019] In the diagram: 1. Mounting base; 2. Guide rail; 3. Shaft seat; 4. Base; 5. Support seat; 6. Flow-retarding roller; 7. Rotating shaft; 8. Ball bearing; 9. Side plate; 10. Reinforcing plate; 11. First slide groove; 12. Rubber pad; 13. Second slide groove; 14. U-shaped frame; 15. Positioning seat; 16. Fixed shaft; 17. Compression spring. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figures 1-4 As shown, the present invention provides a buffer structure for a steel-lined rubber chute, comprising two mounting seats 1 and two flow-retarding rollers 6. Two guide rails 2 are fixedly installed on both sides of the mounting seat 1, and a bearing seat 3 is movably installed between two of the guide rails 2. A support seat 5 is movably installed between the other two guide rails 2. A base 4 is fixedly installed at the bottom of the mounting seat 1. The two flow-retarding rollers 6 are fixedly connected in the middle by a rotating shaft 7. The two ends of the rotating shaft 7 are respectively inserted into one of the bearing seats 3, and the two ends of the rotating shaft 7 also extend to the support seat 5.
[0022] like Figures 1-4 As shown, the mounting base 1 has a U-shaped structure. The U-shaped mounting base 1 provides installation space for the shaft seat 3 and the support seat 5. Side plates 9 are fixedly installed on both sides of the mounting base 1. A reinforcing plate 10 is fixedly connected between the side plates 9 and the mounting base 1. The mounting base 1 is fixedly installed on one side of the chute through the side plates 9 on both sides. Multiple ball bearings 8 are rotatably installed on both sides of the guide rail 2. The setting of the guide rail 2 can provide installation and sliding conditions for the shaft seat 3 and the support seat 5. The setting of the ball bearings 8 can reduce the friction of sliding between the shaft seat 3 and the support seat 5. The shaft seat 3 has a first sliding groove 11 on both sides. The first sliding groove 11 is slidably connected to one of the guide rails 2.
[0023] like Figures 2-3As shown, the support base 5 has second sliding grooves 13 on both sides. A rubber pad 12 is fixedly installed on the top of the support base 5. The rubber pad 12 has a downwardly concave arc structure. A U-shaped frame 14 is fixedly installed on the bottom of the support base 5. The second sliding grooves 13 are slidably connected to one of the guide rails 2. The shaft seat 3 can provide adjustment for the rotation of the rotating shaft 7. In conjunction with the support base 5 with the rubber pad 12 on the top, the frictional resistance to the rotation of the rotating shaft 7 can be adjusted by the weight change of the material entering the chute. A positioning seat 15 is fixedly installed on the top of the base 4. A fixed shaft 16 is fixedly installed on the top of the mounting base 15. The positioning seat 15 is inserted into the lower part of the mounting base 1. The upper end of the fixed shaft 16 is inserted into the shaft hole at the bottom of the U-shaped frame 14. The fixed shaft 16 located between the U-shaped frame 14 and the positioning seat 15 is also fitted with a compression spring 17. The fixed shaft 16 and the compression spring 17 can provide support for the support base 5. Thus, when the rotating shaft 7 presses down on the support base 5, the compressed spring 17 provides a reverse force to the support base 5, thereby controlling the adaptive adjustment of the friction force of the rubber pad 12 on the rotating shaft 7.
[0024] It should be noted that this utility model is a buffer structure for a steel-lined rubber chute. Multiple sets of flow-retarding rollers 6 are installed inside the chute. The flow-retarding rollers 6 are mounted on a bearing 3 via a rotating shaft 7. One end of the rotating shaft 7 rests on a rubber pad 12 on top of a support 5. When material enters the chute, the material impacts and its weight acts on the flow-retarding rollers 6. The greater the amount of material, the greater the pressure exerted on the flow-retarding rollers 6. Consequently, the pressure of the rotating shaft 7 against the rubber pad 12 increases. The friction generated by the downward-concave arc structure of the rubber pad 12 also increases accordingly, thereby increasing the resistance to the rotation of the flow-retarding rollers 6. Therefore, the speed of rotation of the flow-retarding rollers 6 due to the impact is increased. The speed will decrease, thus intercepting and slowing down the falling material. At the same time, the U-shaped frame 14 at the bottom of the support base 5 is inserted and installed on the fixed shaft 16. The compression spring 17 on the fixed shaft 16 is compressed when the rotating shaft 7 presses down on the support base 5. The elastic reaction force further adjusts the friction between the rubber pad 12 and the rotating shaft 7, forming an adaptive buffering mechanism of "increased material weight - increased friction - reduced speed of the slowing roller 6". Finally, through the rotational resistance of the slowing roller 6 and its structural shape, the effect of reducing the falling speed of the material in the chute is achieved, reducing the problem of high-speed impact and wear of the material.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A buffer structure for a steel-lined rubber chute, characterized in that: It includes two mounting bases (1) and two flow-retarding rollers (6). Two guide rails (2) are fixedly installed on both sides of the mounting base (1), and a bearing seat (3) is movably installed between two of the guide rails (2). A support seat (5) is movably installed between the other two guide rails (2). A base (4) is fixedly installed at the bottom of the mounting base (1). The two flow-retarding rollers (6) are fixedly connected in the middle by a rotating shaft (7). The two ends of the rotating shaft (7) are respectively inserted into one of the bearing seats (3), and the two ends of the rotating shaft (7) also extend to the support seat (5).
2. The buffer structure of a steel-lined rubber chute according to claim 1, characterized in that: The mounting base (1) has a U-shaped structure.
3. The buffer structure of a steel-lined rubber chute according to claim 1, characterized in that: The mounting base (1) has side plates (9) fixedly installed on both sides. A reinforcing plate (10) is fixedly connected between the side plates (9) and the mounting base (1). The mounting base (1) is fixedly installed on one side of the chute through the side plates (9) on both sides.
4. The buffer structure of a steel-lined rubber chute according to claim 1, characterized in that: Multiple ball bearings (8) are rotatably mounted on both sides of the guide rail (2).
5. The buffer structure of a steel-lined rubber chute according to claim 1, characterized in that: The bearing seat (3) has a first sliding groove (11) on both sides, and the first sliding groove (11) is slidably connected to one of the guide rails (2).
6. The buffer structure of a steel-lined rubber chute according to claim 1, characterized in that: The support base (5) has a second sliding groove (13) on both sides. A rubber pad (12) is fixedly installed on the top of the support base (5). The rubber pad (12) is a downwardly concave arc structure. A U-shaped frame (14) is fixedly installed on the bottom of the support base (5). The second sliding groove (13) is slidably connected to one of the guide rails (2).
7. The buffer structure of a steel-lined rubber chute according to claim 6, characterized in that: A positioning seat (15) is fixedly installed on the top of the base (4), and a fixing shaft (16) is fixedly installed on the top of the positioning seat (15). The positioning seat (15) is inserted into the lower part of the mounting base (1), and the upper end of the fixing shaft (16) is inserted into the shaft hole at the bottom of the U-shaped frame (14). The fixing shaft (16) located between the U-shaped frame (14) and the positioning seat (15) is also fitted with a compression spring (17).