Buffer bed for belt conveyor

Abstract

The utility model relates to the technical field of buffer beds, in particular to a buffer bed for a belt conveyor, which comprises side plates symmetrically mounted on two sides of a support, a buffer mechanism arranged on the support and used for buffering impact force of material falling, and a cleaning mechanism arranged on the support and used for cleaning impurities on the buffer mechanism. When materials fall, impact and push the U-shaped frame to move downwards, the sliding rod is pushed to slide downwards in the sliding sleeve and extrude the buffering spring, and therefore the elasticity of the buffering spring is used for being matched with the buffering strip to buffer the impact force generated when the materials fall better; an electric contact at the bottom of the sealing piston makes contact with an electric contact in the sliding sleeve first and sends out an electric signal, so that an electromagnetic ring is powered on, an instantaneous magnetic field is generated, and under the action of the instantaneous magnetic field, magnetorheological fluid in the sliding sleeve is converted into high-viscosity and low-fluidity Bingham fluid from low-viscosity Newtonian fluid, so that impact force is buffered in a three-level mode, and the service life of the sliding sleeve is prolonged. And the conveying belt is better protected.

Description

Technical Field

[0001] The utility model relates to the technical field of buffer beds, in particular to a buffer bed for a belt conveyor. Background Art

[0002] The buffer bed for belt conveyor is generally installed under the belt of the belt conveyor transfer and dropping point. It is an upgraded product of the buffer roller. It is mainly used to support and protect the conveyor belt. It can effectively buffer the impact of falling materials on the conveyor belt, prevent the conveyor belt from being damaged by the impact of materials, and prevent the conveyor belt from deviation.

[0003] However, when facing the impact of large materials, relying solely on buffer strips to buffer and absorb the impact force is relatively limited. There are still cases where the conveyor belt is torn by the impact force and the material is scattered. In addition, during use, small materials or impurities in the materials will enter the gaps between the buffer strips. Under the impact of the falling material, the buffer strips are compressed by the impact and come into contact with the impurities, causing the buffer strips to be scratched, thereby affecting the service life and buffering effect of the buffer strips. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a buffer bed for a belt conveyor, which solves the technical problems of the existing technology that the buffering effect is limited by relying solely on buffer strips, and impurities in the gaps between the buffer strips will scratch the buffer strips, thereby achieving the purpose of improving the buffering effect and protecting the buffer strips.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a buffer bed for a belt conveyor, comprising side plates symmetrically installed on both sides of a bracket, the bracket being provided with a buffer mechanism for buffering the impact force of falling materials, and the bracket being provided with a cleaning mechanism for cleaning impurities on the buffer mechanism.

[0006] The buffer mechanism includes a U-shaped frame installed in an array on the bracket and the side panel, a buffer bed is installed on the U-shaped frame, and buffer strips are installed in an array on the buffer bed. A secondary buffer component is provided in the U-shaped frame for secondary buffering of the impact force of falling materials, and a tertiary buffer component is provided in the secondary buffer component for tertiary buffering of the impact force.

[0007] Preferably, the secondary buffer assembly includes a slide plate installed on the bracket and the side panel and slidingly connected to the slide grooves opened on both sides of the U-shaped frame. The bracket and the side panel are installed with a sliding sleeve, and the sliding sleeve is located in the U-shaped frame. A buffer spring is installed in the sliding sleeve, and a sliding rod is installed on the top of the buffer spring and slides up and down and is connected to the inside of the sliding sleeve, and the top of the sliding rod is connected to the U-shaped frame.

[0008] Preferably, the three-stage buffer assembly includes a magnetorheological fluid poured into the sleeve, a sealing piston is installed at the bottom of the slide rod and is connected to the inner wall of the sleeve for sliding up and down connection, electrical contacts are symmetrically installed at the bottom of the sealing piston and in the sleeve, and an electromagnetic ring is installed in the installation groove opened in the sleeve.

[0009] Preferably, the cleaning mechanism includes electric rails on both sides of the mounting bracket, an electric slide is connected to the electric rails for sliding back and forth, a connecting frame is installed on the electric slide, and a cleaning scraper is installed between the two connecting frames to fit the gap of the buffer strip.

[0010] Preferably, the electric guide rail is a T-shaped structure, and a limit block is installed at the T-shaped notch of the electric guide rail, and a T-shaped slide groove matching the electric guide rail is provided at the bottom of the electric slide.

[0011] Preferably, an electric cylinder is installed on the electric slide, and the free end of the electric cylinder is connected to the connecting frame.

[0012] By means of the above technical solution, the utility model provides a buffer bed for a belt conveyor, which has at least the following beneficial effects:

[0013] 1. In this utility model, when the impact force of falling materials hits and pushes the U-shaped frame downward, the slide rod is pushed down in the slide sleeve and squeezes the buffer spring, thereby utilizing the elasticity of the buffer spring and the buffer strip to better buffer the impact force of the falling materials.

[0014] 2. In the present invention, when the buffer spring is about to approach its compression limit, the electrical contacts at the bottom of the sealing piston and the electrical contacts in the sliding sleeve are first in contact and send out an electrical signal, thereby energizing the electromagnetic ring and generating a transient magnetic field. Under the action of the transient magnetic field, the magnetorheological fluid in the sliding sleeve is converted from a low-viscosity Newtonian fluid to a high-viscosity, low-fluidity Bingham fluid, thereby providing three-level buffering for the impact force and better protecting the conveyor belt.

[0015] 3. The utility model moves the electric slide backward along the electric guide rail, thereby driving the connecting frame on the electric slide to move backward, and then driving the cleaning scraper to move backward along the gap of the buffer strip, pushing out the mineral impurities in the gap to avoid scratching the buffer strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached figure:

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the independent structure of the buffer mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the independent cross-sectional structure of the secondary and tertiary buffer components of the utility model;

[0021] Figure 4 This is a schematic diagram of the independent structure of the cleaning mechanism of the utility model.

[0022] In the figure: 1. Bracket; 2. Side panel; 3. Buffer mechanism; 31. U-shaped frame; 32. Buffer bed; 33. Buffer strip; 34. Secondary buffer assembly; 341. Slide plate; 342. Slide sleeve; 343. Buffer spring; 344. Slide rod; 35. Tertiary buffer assembly; 351. Sealing piston; 352. Electric contact; 353. Electromagnetic ring; 4. Cleaning mechanism; 41. Electric guide rail; 42. Electric slide; 43. Connecting frame; 44. Cleaning scraper; 45. Electric cylinder. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] Based on the existing existing technology, the buffer effect of relying solely on buffer strips is limited, and impurities in the gaps between the buffer strips will scratch the buffer strips. This embodiment provides a buffer bed for a belt conveyor. Please refer to Figures 1-4 The embodiment provides a buffer bed for a belt conveyor, which can improve the buffering effect and protect the buffer strips. The buffer bed for a belt conveyor includes side panels 2 symmetrically mounted on both sides of a bracket 1. The bracket 1 is provided with a buffer mechanism 3 for buffering the impact force of falling materials. The bracket 1 is also provided with a cleaning mechanism 4 for cleaning impurities from the buffer mechanism 3. The buffer mechanism 3 provides multi-level buffering of the impact force of falling materials, better protecting the conveyor belt. The cleaning mechanism 4 is provided to remove impurities remaining in the gaps of the buffer strips 33, preventing the impact force of the falling materials from squeezing the buffer strips 33 and impurities, resulting in the buffer strips 33 being scratched.

[0026] In order to cushion the impact force of falling materials on the conveyor belt, the device is provided with a buffer mechanism 3, which includes a U-shaped frame 31 installed in an array on the bracket 1 and the side plate 2, a buffer bed 32 installed on the U-shaped frame 31, and buffer bars 33 installed in an array on the buffer bed 32. A secondary buffer component 34 is provided in the U-shaped frame 31 for secondary buffering of the impact force of falling materials, and a tertiary buffer component 35 is provided in the secondary buffer component 34 for tertiary buffering of the impact force. When the material falls and hits the buffer bar 33, the surface of the buffer bar 33 is made of special ultra-high molecular material, which has the characteristics of flame retardancy, antistatic, high wear resistance, impact resistance, etc., and can withstand the impact of the loaded material and the friction during the operation of the belt, without causing damage to the belt or increasing the power.

[0027] The top of the sliding sleeve 343 is provided with a sliding rod 344 which is slidably connected to the inside of the sliding sleeve 342, and the top of the sliding rod 344 is connected to the U-shaped frame 31. The impact force of the falling material pushes the U-shaped frame 31 downward, thereby pushing the sliding rod 344 to slide down in the sliding sleeve 342 and compressing the buffer spring 343, so that the elasticity of the buffer spring 343 cooperates with the buffer bar 33 to better buffer the impact force of the falling material.

[0028] When the impact force of the falling material is too great, the buffer spring 343 is forced to reach its compression limit, resulting in a reduction in the buffering effect. Therefore, the device is also provided with a three-stage buffer component 35, which includes a magnetorheological fluid poured into the sleeve 342, a sealing piston 351 connected to the inner wall of the sleeve 342 for sliding up and down is installed at the bottom of the slide rod 344, and electric contacts 352 are symmetrically installed at the bottom of the sealing piston 351 and in the sleeve 342. An electromagnetic ring 353 is installed in the installation groove opened in the sleeve 342. When the slide rod 344 is pushed down, the electromagnetic ring 353 is installed. The sealing piston 351 at its bottom slides down along the inner wall of the sleeve 342 and squeezes the buffer spring 343. When the buffer spring 343 is about to approach its compression limit, the electric contact 352 at the bottom of the sealing piston 351 and the electric contact 352 in the sleeve 342 first contact and send an electrical signal, thereby energizing the electromagnetic ring 353 and generating a transient magnetic field. Under the action of the transient magnetic field, the magnetorheological fluid in the sleeve 342 is transformed from a low-viscosity Newtonian fluid to a high-viscosity, low-fluidity Bingham fluid, thereby performing three-level buffering of the impact force and better protecting the conveyor belt.

[0029] Example 2

[0030] On the basis of Example 1, Figures 1-4 As shown, since mineral impurities will remain in the gap of the buffer bar 33, the buffer bar 33 will be compressed and come into contact with the impurities under the impact of the falling material, which will cause the buffer bar 33 to be scratched, thereby affecting the service life and buffering effect of the buffer bar 33. Therefore, the device is also provided with a cleaning mechanism 4, which includes an electric guide rail 41 on both sides of the mounting bracket 1, and an electric slide 42 is connected to the electric guide rail 41 for sliding back and forth. A connecting frame 43 is installed on the electric slide 42, and a cleaning scraper 44 that fits the gap of the buffer bar 33 is installed between the two connecting frames 43. The electric guide rail 41 is a T-shaped structure, and a limit block is installed at the T-shaped notch of the electric guide rail 41. A T-shaped groove matching the electric guide rail 41 is provided at the bottom of the electric slide 42. The cleaning scraper 44 is fitted into the gap between the buffer bars 33. Then, the electric slide 42 is started to move backward along the electric guide rail 41, thereby driving the connecting frame 43 on the electric slide 42 to move backward, thereby driving the cleaning scraper 44 to move backward along the gap of the buffer bar 33, pushing out the mineral impurities in the gap to avoid scratching the buffer bar 33.

[0031] Since the buffer spring 343 produces fatigue and plastic deformation after long-term use, the position height of the buffer bar 33 also changes. Therefore, the device is equipped with an electric cylinder 45 on the electric slide 42, and the free end of the electric cylinder 45 is connected to the connecting frame 43. The electric cylinder 45 drives the connecting frame 43 and the cleaning scraper 44 to adjust the height to ensure that the cleaning scraper 44 can always fit into the gap of the buffer bar 33, thereby removing impurities.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buffer bed for a belt conveyor, comprising side plates (2) symmetrically mounted on both sides of a bracket (1), characterized in that: The support (1) is provided with a buffer mechanism (3) for buffering the impact force of falling materials, and the support (1) is provided with a cleaning mechanism (4) for cleaning impurities on the buffer mechanism (3); The buffer mechanism (3) comprises a U-shaped frame (31) mounted in an array on a bracket (1) and a side plate (2); a buffer bed (32) is mounted on the U-shaped frame (31); buffer bars (33) are mounted in an array on the buffer bed (32); a secondary buffer component (34) for performing secondary buffering on the impact force of falling materials is arranged in the U-shaped frame (31); and a tertiary buffer component (35) for performing tertiary buffering on the impact force is arranged in the secondary buffer component (34).

2. The buffer bed for a belt conveyor according to claim 1, characterized in that: The secondary buffer assembly (34) includes a slide plate (341) installed on the bracket (1) and the side plate (2) and connected to the slide grooves opened on both sides of the U-shaped frame (31) in an upward and downward sliding manner. The bracket (1) and the side plate (2) are provided with a sliding sleeve (342), and the sliding sleeve (342) is located in the U-shaped frame (31). A buffer spring (343) is installed in the sliding sleeve (342), and a sliding rod (344) connected to the inside of the sliding sleeve (342) in an upward and downward sliding manner is installed on the top of the buffer spring (343), and the top of the sliding rod (344) is connected to the U-shaped frame (31).

3. The impact bed for a belt conveyor according to claim 2, characterized in that: The three-stage buffer assembly (35) includes a magnetorheological fluid injected into the sliding sleeve (342), a sealing piston (351) is installed at the bottom of the sliding rod (344) and is connected to the inner wall of the sliding sleeve (342) in an upward and downward sliding manner, an electric contact (352) is symmetrically installed at the bottom of the sealing piston (351) and in the sliding sleeve (342), and an electromagnetic ring (353) is installed in the installation groove opened in the sliding sleeve (342).

4. The impact bed for a belt conveyor according to claim 1, characterized in that: The cleaning mechanism (4) comprises electric rails (41) on both sides of the mounting bracket (1), an electric slide (42) is connected to the electric rails (41) for forward and backward sliding, a connecting frame (43) is mounted on the electric slide (42), and a cleaning scraper (44) is mounted between the two connecting frames (43) and is in contact with the buffer strip (33).

5. The impact bed for a belt conveyor according to claim 4, characterized in that: The electric guide rail (41) is a T-shaped structure, and a limit block is installed at the T-shaped notch of the electric guide rail (41). The bottom of the electric slide (42) is provided with a T-shaped slide groove that matches the electric guide rail (41).

6. The impact bed for a belt conveyor according to claim 4, characterized in that: An electric cylinder (45) is installed on the electric slide (42), and the free end of the electric cylinder (45) is connected to the connecting frame (43).

Images