Buffer device and conveying equipment

Abstract

The utility model relates to a buffering device and conveying equipment, and the buffering device comprises a buffering assembly which comprises a support mechanism and a buffering strip arranged on the support mechanism; the suspension assembly is connected with the discharging device, a pressure spring is arranged in the suspension assembly, and the pressure spring is installed in the vertical direction; one end of the shock absorber is connected with the support mechanism, and the shock absorber moves up and down in a damping mode. The conveying equipment comprises a buffering device which is arranged below the discharging device. According to the buffering device and the conveying device, a multi-stage composite buffering mode is adopted, the impact force buffering and attenuating effect is good, complex working conditions can be dealt with, the loss of the belt impacted by falling materials is reduced, and the service life of the belt is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bulk material conveying equipment of port, mine and the like, specifically buffer device and conveying equipment. BACKGROUND

[0002] At present, when the bulk material conveying and transferring material of port, mine and the like, most adopt the belt machine to transfer material, and the unloading device mostly adopts the crane, the stacker-reclaimer, the bucket wheel machine. When the unloading device unloads to the belt machine, the material falls from high place and impacts the belt, and it is easy to cause the abrasion, the scratch of the belt even the tearing, shortens the service life of the belt, increases the use cost of equipment. Therefore, good buffer device is needed.

[0003] The buffer device in prior art adopts single buffer mode, and the buffer damping impact force effect is poor, cannot cope with complex working conditions, and the loss of material falling impact belt is still great, and the service life of the belt is short. The buffer bed is welded and fixed with the conveying equipment, and when the damaged parts are replaced, the machine needs to be stopped and disassembled, and the efficiency is low. When the material falling point is changed, it is difficult to achieve synchronous movement. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model aims at providing a buffer device and conveying equipment, which adopts multi-stage composite buffer mode, has good buffer damping impact force effect, can cope with complex working conditions, reduces the loss of material falling impact belt, and improves the service life of the belt.

[0005] The technical scheme of the utility model is as follows:

[0006] A buffer device, comprising: a buffer assembly, comprising a support mechanism, a buffer strip provided on the support mechanism; a suspension assembly connected with an unloading device, a compression spring is arranged in the suspension assembly, and the compression spring is installed along the vertical direction; a shock absorber, one end of the shock absorber is connected with the support mechanism, and the shock absorber moves up and down with damping.

[0007] Preferably, the buffer assembly comprises a roller assembly, and the roller assembly is arranged side by side along the conveying direction of the conveying device.

[0008] Preferably, the roller assembly comprises a buffer roller and a bearing roller arranged in parallel, the buffer roller is close to the support mechanism, and the bearing roller is arranged on the other side of the buffer roller.

[0009] Preferably, the center line of the bearing roller is higher than the center line of the buffer roller.

[0010] Preferably, the support mechanism comprises at least two second support pieces arranged in parallel, and a first support piece is installed on the second support piece in a staggered manner, and the buffer strip is fixedly installed on the first support piece.

[0011] Preferably, the support mechanism comprises at least two third support members arranged in parallel, and the buffer roller and the load roller are arranged on the third support members respectively.

[0012] Preferably, the suspension assembly comprises a mounting frame, a connecting shaft penetrating into the mounting frame, and the compression spring is sleeved on the connecting shaft and abuts against the inner wall of the mounting frame.

[0013] Preferably, the suspension assembly comprises a lifting lug arranged above the mounting frame.

[0014] Preferably, the shock absorber is connected with the support mechanism through a pin shaft.

[0015] The application provides a buffering device and a conveying device, comprising a buffering assembly, a suspension assembly and a shock absorber.

[0016] The buffering device and the conveying device provided by the application comprise a buffering assembly, a suspension assembly and a shock absorber, wherein the buffering assembly comprises a support mechanism and a buffering strip arranged on the support mechanism, the suspension assembly is connected with a discharging device, a compression spring is arranged in the suspension assembly, the compression spring is installed in a vertical direction, one end of the shock absorber is connected with the support mechanism, and the shock absorber moves up and down with damping. Through the above-mentioned cooperative mechanism, the compression spring, the shock absorber and the buffering strip form a complete protection system for absorbing energy and dissipating energy from direct impact, the buffering and damping impact effect is good, complex working conditions can be coped with, the loss of the material falling impact belt is reduced, and the service life of the belt is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure schematic view of the buffering device provided by the application.

[0018] Fig. 2 It is a structure schematic view of the suspension assembly in the application.

[0019] Fig. 3 It is a structure schematic view of the buffering assembly in the application.

[0020] Fig. 4 It is a structure schematic view of the buffering assembly in the application.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, buffering assembly; 11, support mechanism; 111, first support member; 112, second support member; 113, third support member; 12, buffering strip; 13, roller assembly; 131, buffer roller; 132, load roller; 2, suspension assembly; 20, compression spring; 21, mounting frame; 22, connecting shaft; 23, lifting lug; 3, shock absorber; 31, pin shaft. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0024] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0025] Figs. 1 to 4 As shown, this utility model provides a buffer device and conveying equipment, including a buffer assembly 1, a suspension assembly 2 and a shock absorber 3. The buffer assembly 1 includes a support mechanism 11 and a buffer strip 12 disposed on the support mechanism 11. The suspension assembly 2 is connected to the unloading device. A compression spring 20 is disposed inside the suspension assembly 2 and is installed in the vertical direction. One end of the shock absorber 3 is connected to the support mechanism 11 and the shock absorber 3 moves up and down with damping.

[0026] It should be noted that existing buffer devices typically employ a single buffering measure, which proves ineffective in complex operating conditions. In scenarios with large material drop heights and high flow rates, such as coal mines and ports, these single-buffered devices directly bear significant material impacts, leaving the conveyor belt at considerable risk of tearing. The buffer device provided in this application employs a three-stage buffering system. When material impacts and falls from a higher position, the buffer strip 12 on the buffer assembly 1 directly absorbs the impact. The elastic deformation of the buffer strip 12 absorbs the initial impact energy, approximately 40%–50% of the high-frequency impact, initially reducing belt wear. Simultaneously, the compression spring 20 on the suspension assembly 2 converts the remaining impact force into elastic potential energy, absorbing low-frequency impacts. A shock absorber 3 is installed on the support mechanism 11. The shock absorber 3, through its up-and-down damping movement, converts the remaining energy of the compression spring 20 that has not been completely dissipated into heat energy by utilizing the flow resistance of the internal oil. Specifically, when the material falls, the piston of the shock absorber 3 moves downward, and the oil in the compression chamber flows into another chamber, generating a small damping force, which serves as a buffer to avoid obstructing the compression spring 20. When the compression spring 20 rebounds, the piston moves upward, which in turn generates a larger damping force, quickly suppressing the vibration of the compression spring 20 and preventing secondary impacts on the conveyor belt caused by the oscillation of the compression spring 20. Therefore, the buffer strip 12, compression spring 20, and shock absorber 3 on the buffer assembly 1 work together. In the initial impact stage, when the material falls, the buffer strip 12 first absorbs about half of the impact energy. The remaining energy is transferred to the compression spring 20 on the suspension assembly 2 through the support mechanism 11. The compression spring 20 compresses and absorbs part of the energy, while the shock absorber 3 synchronously generates damping force to suppress the oscillation of the compression spring 20. In the final stage, the shock absorber 3 dissipates the remaining energy during the rebound stroke, thereby ensuring the smooth operation of the conveyor belt and avoiding belt deviation or tearing due to residual vibration. Through the above-mentioned synergistic mechanism, the compression spring 20, shock absorber 3, and buffer strip 12 form a complete protection system that absorbs and dissipates energy from direct impact. Its buffering and attenuation effect is good, which can cope with complex working conditions, reduce the wear of the falling material impacting the belt, and improve the service life of the belt.

[0027] The buffer strip 12 can be made of a composite of high wear-resistant and high elastic rubber and ultra-high molecular weight polyethylene board to improve its buffering effect and wear resistance.

[0028] Furthermore, the buffer assembly 1 includes an idler roller assembly 13, which is arranged side-by-side on the support mechanism 11 along the conveying direction of the conveying device. When material impacts the conveyor belt, the buffer strip 12 disperses the impact force through flexible contact. The side-by-side arrangement of the buffer assembly 1 and the idler roller assembly 13 achieves a change in the form of friction, thereby reducing the belt running resistance. The parallel structure allows for adjustment of the height between the buffer assembly 1 and the idler roller assembly 13. Each component is modularly designed, facilitating installation and disassembly. If any component is damaged, repair only requires disassembling the damaged part. In practical applications, the buffer assembly 1 can be placed on one or both sides of the support mechanism 11, or installed in the middle of the support mechanism 11, allowing for flexible selection based on actual working conditions.

[0029] Specifically, the idler assembly 13 includes a buffer idler 131 and a load-bearing idler 132 arranged in parallel. The buffer idler 131 is close to the support mechanism 11, and the load-bearing idler 132 is located on the other side of the buffer idler 131. The cooperation between the buffer assembly 13 and the idler assembly 13 forms a flexible guiding-rigid load-bearing structure. The idler assembly 13, including the buffer idler 131 and the load-bearing idler 132, allows the belt to mainly roll in contact with the rigid idler, converting sliding friction into rolling friction, which can further reduce the belt running resistance.

[0030] The centerline of the carrying idler 132 is higher than the centerline of the buffer idler 131. This arrangement is to ensure that the belt contacts the carrying idler 132 but not the buffer idler 131 or the buffer assembly 1, thus changing sliding friction to rolling friction, which can reduce the belt running resistance and reduce the damage to the belt caused by sliding friction.

[0031] In the embodiments provided by this utility model, the support mechanism 11 includes at least two parallel second support members 112 and a first support member 111 offset from the second support members 112. The buffer strip 12 is fixedly installed on the first support member 111. The arrangement of multiple parallel second support members 112 increases the contact area of ​​the support structure, providing greater support force to reduce the impact of materials on the conveyor belt. Therefore, the number of second support members 112 is determined by considering the material size, drop height, and other working conditions. Furthermore, the first support member 111 and the second support member 112 are offset from each other. Offset installation can be understood as non-parallel arrangement, with a certain angle between them, preferably perpendicular. In this case, the belt on the conveyor device can obtain more stable support force.

[0032] Regarding the fixed installation of the buffer strip 12 on the first bracket 111, it can be installed by adhesion or other mechanical means. Considering that the buffer strip 12 will withstand a large material impact force, the installation method of the buffer strip 12 on the first bracket 111 needs to consider whether this installation method will cause the buffer strip 12 to shift when the material impacts the buffer strip 12. Therefore, the installation of the buffer strip 12 can be mechanically installed. Specifically, the first bracket 111 is welded to the second bracket 112. Multiple holes for mounting bolts are opened on the first bracket 111, and the buffer strip 12 is fixed to the first bracket 111 by T-bolts.

[0033] In the embodiments provided by this utility model, the support mechanism 11 includes at least two parallel third support members 113. The buffer roller 131 and the load-bearing roller 132 are respectively disposed on the third support members 113. The number of third support members 113 is determined according to the number of roller assemblies 13. The third support members 113 provide installation positions for the buffer roller 131 and the load-bearing roller 132.

[0034] The suspension assembly 2 includes a mounting frame 21 and a connecting shaft 22. The connecting shaft 22 passes through the mounting frame 21, and a compression spring 20 is slidably fitted onto the connecting shaft 22, with one end of the compression spring 20 resting against the interior of the mounting frame 21. The compression spring 20 is installed inside the mounting frame 21 to prevent foreign objects from causing it to malfunction. When material impacts the conveyor belt, the compression spring 20 first absorbs most of the impact energy through compression deformation. The elastic characteristics of the compression spring 20 allow it to respond quickly to the impact force, converting kinetic energy into elastic potential energy, and slowing down the impact transmission speed through its own reciprocating compression-rebound process. Typically, the natural frequency of the compression spring 20 is low, usually below 5Hz, suitable for absorbing low-frequency impact energy. The compression spring 20, in conjunction with the damping motion of the shock absorber 3, suppresses the mid-to-high frequency vibrations during the spring 20's rebound.

[0035] In the embodiments provided by this utility model, the suspension assembly 2 includes a lifting lug 23, which is disposed above the mounting frame 21. The lifting lug 23 is disposed above the suspension assembly 2 and connected to the unloading device to realize the suspension of the entire buffer device. By moving the unloading device, the unloading point can be changed.

[0036] The shock absorber 3 is connected to the support structure via a pin 31.

[0037] This utility model provides a conveying device, including the above-mentioned buffer device, which is located below the unloading device.

[0038] The embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buffer device, characterized in that, include: A buffer assembly (1) includes a support mechanism (11) and a buffer strip (12) disposed on the support mechanism (11); A suspension assembly (2) is connected to an unloading device. A compression spring (20) is provided inside the suspension assembly (2). The compression spring (20) is installed along the vertical direction. Shock absorber (3), one end of which is connected to the support mechanism (11), and the shock absorber (3) moves up and down with damping.

2. The buffer device according to claim 1, characterized in that, The buffer assembly (1) includes a roller assembly (13), which is arranged side by side with the support mechanism (11) along the conveying direction of the conveying device.

3. The buffer device according to claim 2, characterized in that, The idler assembly (13) includes a buffer idler (131) and a support idler (132) arranged in parallel. The buffer idler (131) is close to the support mechanism (11), and the support idler (132) is located on the other side of the buffer idler (131).

4. The buffer device according to claim 3, characterized in that, The centerline of the carrying idler (132) is higher than the centerline of the buffer idler (131).

5. The buffer device according to claim 4, characterized in that, The support mechanism (11) includes at least two parallel second support members (112) and a first support member (111) misaligned on the second support members (112), and the buffer strip (12) is fixedly installed on the first support member (111).

6. The buffer device according to claim 5, characterized in that, The support mechanism (11) includes at least two parallel third support members (113), and the buffer roller (131) and the bearing roller (132) are respectively disposed on the third support members (113).

7. The buffer device according to any one of claims 1 to 6, characterized in that, The suspension assembly (2) includes a mounting bracket (21), A connecting shaft (22) is inserted into the mounting bracket (21), and a compression spring (20) is slidably fitted on the connecting shaft (22), with one end of the compression spring (20) abutting against the inner wall of the mounting bracket (21).

8. The buffer device according to claim 7, characterized in that, The suspension assembly (2) includes a lug (23) which is disposed above the mounting bracket (21).

9. The buffer device according to claim 8, characterized in that, The shock absorber (3) is connected to the support mechanism (11) via a pin (31).

10. A conveying device, characterized in that, Includes the buffer device described in any one of claims 1 to 9, wherein the buffer device is located below the unloading device.

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