Vibration and noise reduction structure of grain and oil conveying equipment
By changing the chute of the scraper conveyor to a movable structure, the conveyor belt and scraper move synchronously, solving the problem of friction noise between the scraper and the chute and achieving a significant noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGQIU JIUCHAO GRAIN & OIL MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
Scraper conveyors generate loud noise during grain and oil transfer due to the friction and collision between the scraper and the chute. Existing technologies such as spring damping are not effective, and rubber strips are prone to wear and failure. Traditional box covers are only a temporary solution.
The chute is modified into a movable structure, the conveyor belt speed is synchronized with the scraper, the surface of the conveyor belt is covered with stainless steel, the conveyor belt, scraper and grain are relatively stationary to reduce friction and collision, and a tension roller and compression spring structure is used to support the movement of the conveyor belt.
It effectively reduces frictional noise between the scraper and the chute, and reduces collision noise between grain particles and the chute, achieving a significant noise reduction effect.
Smart Images

Figure CN224211737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise reduction technology for grain and oil conveying, and in particular to a vibration reduction and noise reduction structure for grain and oil conveying equipment. Background Technology
[0002] Scraper conveyors play a crucial role in grain and oil transportation. However, during operation, the friction and collision between the scraper and the chute generates significant noise. In current equipment, the chute structure is a fixed U-shaped shell. When the scraper conveys materials, the frequent friction between the bottom edge of the scraper and the bottom of the chute is a major noise source. Simultaneously, the movement of grain particles within the chute also produces considerable noise. To reduce noise, some manufacturers install flexible rubber strips at the bottom of the scraper, but these strips easily wear out and fail under high-intensity friction. Traditionally, the noise problem is solved by covering the entire conveyor with a casing, but this is only a temporary solution. Patent document CN220448878U discloses a coal mine conveyor with noise reduction capabilities, which attempts to reduce noise through spring damping. However, spring damping cannot fundamentally solve the problem of noise from the collision between the scraper and the chute.
[0003] To address this issue, a vibration reduction and noise reduction structure for grain and oil conveying equipment is proposed, which can significantly reduce noise during grain and oil conveying. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a vibration reduction and noise reduction structure for grain and oil conveying equipment, which effectively solves the problems of avoiding drug contamination and preventing drug spillage.
[0005] The technical solution includes a chute body with rollers at both ends. The two rollers are connected by a conveyor belt, and the speed of the conveyor belt is equal to the speed of the scraper in the scraper conveyor. The body contains a horizontal support plate, which keeps the upper part of the conveyor belt horizontal. A tension roller is installed on the lower side of the body.
[0006] Preferably, the body has a U-shaped plate with an opening facing downwards at the bottom, a tension roller is rotatably installed inside the U-shaped plate, there are multiple insert rods at the upper end of the U-shaped plate, and multiple cylinders corresponding to the insert rods are fixed at the lower end of the body. The insert rods are placed inside the cylinders, and compression springs are installed inside the cylinders.
[0007] Preferably, the outer surface of the conveyor belt is covered with stainless steel.
[0008] Preferably, the conveyor belt has a U-shaped cross-section, and the two sides of the conveyor belt are attached to the side plates of the body.
[0009] This invention has a clever structure. By changing the traditional fixed chute to a movable one, the bottom of the chute and the scraper move simultaneously, which reduces the friction between the scraper and the chute, thereby achieving the purpose of noise reduction. Attached Figure Description
[0010] Figure 1 This is a three-dimensional drawing of the present invention.
[0011] Figure 2 This is the front view of the present utility model.
[0012] Figure 3 This is a side view of the present invention.
[0013] Figure 4 This is a side sectional view of the present invention. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0015] Depend on Figures 1 to 4 As shown, the present invention includes a chute body 1, with rollers 2 at both ends of the body 1, and the two rollers 2 are connected by a conveyor belt 3. The running speed of the conveyor belt 3 is equal to the moving speed of the scraper in the scraper conveyor. There is a horizontal support plate 4 inside the body 1, which keeps the upper part of the conveyor belt 3 horizontal. A tension roller 5 is installed on the lower side of the body 1.
[0016] In order to install the tension roller 5, there is a U-shaped plate 6 with the opening facing downward below the body 1. The tension roller 5 is rotatably installed in the U-shaped plate 6. There are multiple insert rods 7 at the upper end of the U-shaped plate 6. There are multiple cylinders 8 at the lower end of the body 1 that correspond one-to-one with the insert rods 7. The insert rods 7 are placed in the cylinders 8. A compression spring is installed in the cylinders 8.
[0017] To prevent the transmission belt from wearing out too quickly, the outer surface of the transmission belt 3 is covered with stainless steel.
[0018] To improve conveying performance, the conveyor belt 3 has a U-shaped cross-section, and the two sides of the conveyor belt 3 are attached to the side plates of the body 1.
[0019] It is worth noting that this structure greatly reduces friction and collision between the scraper and the chute by setting the speed of the transmission belt to be equal to the speed of the scraper, thereby reducing noise. At the same time, since the grain is on the conveyor belt 3, the grain is also stationary relative to the conveyor belt 3, which also greatly reduces the collision and friction between the grain particles and the chute, and also greatly reduces the generation of noise, achieving multiple benefits.
[0020] In use, this device replaces the transmission chute structure, and a motor is installed on one of the rollers 2. The motor drives the conveyor belt 3 to rotate via the roller 2. The moving speed of the transmission belt is consistent with the running speed of the scraper in the scraper conveyor. In this way, the scraper and the conveyor belt 3 are relatively stationary during operation, and there is no friction between them, thus reducing noise. At the same time, the grain particles and the conveyor belt 3 are also relatively stationary, which also greatly reduces the generation of noise.
[0021] This invention has a clever structure. By changing the traditional fixed chute to a movable one, the bottom of the chute and the scraper move simultaneously, which reduces the friction between the scraper and the chute, thereby achieving the purpose of noise reduction.
Claims
1. A vibration reduction and noise reduction structure for grain and oil conveying equipment, characterized in that, The chute includes a main body (1), with rollers (2) at both ends of the main body (1). The two rollers (2) are connected by a conveyor belt (3), and the speed of the conveyor belt (3) is equal to the speed of the scraper in the scraper conveyor. The main body (1) contains a horizontal support plate (4), which keeps the upper part of the conveyor belt (3) horizontal. A tension roller (5) is installed on the lower side of the main body (1).
2. The vibration reduction and noise reduction structure for a grain and oil conveying equipment according to claim 1, characterized in that, The main body (1) has a U-shaped plate (6) with an opening facing downwards below it. The tension roller (5) is rotatably installed inside the U-shaped plate (6). There are multiple insert rods (7) at the upper end of the U-shaped plate (6). There are multiple cylinders (8) at the lower end of the main body (1) that correspond one-to-one with the insert rods (7). The insert rods (7) are placed inside the cylinders (8). A compression spring is installed inside the cylinders (8).
3. The vibration reduction and noise reduction structure for a grain and oil conveying equipment according to claim 1, characterized in that, The outer surface of the conveyor belt (3) is covered with stainless steel.
4. The vibration reduction and noise reduction structure for a grain and oil conveying equipment according to claim 3, characterized in that, The conveyor belt (3) has a U-shaped cross section, and the two sides of the conveyor belt (3) are attached to the side plates of the body (1).
Citation Information
Patent Citations
Coal mine conveyor with noise reduction function
CN220448878U