阅读说明：本技术 一种皮带机缓冲装置及其制作方法 (Belt conveyor buffering device and manufacturing method thereof ) 是由 林震源 王荣 王广成 卜维平 尹力 陶雪宏 张建 徐志文 陶秀强 张启文 汤平 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种皮带机缓冲装置及其制作方法,包括缓冲床B和高分子滚轮式底辊组；高分子滚轮式底辊组共设有五组,每组高分子滚轮式底辊组分别安装于缓冲床B的前后两端及中部底板空隙处,缓冲床B的两端通过连接螺栓B固定连接在皮带机支架上,在皮带机支架的中间加设用于减缓物料冲击的缓冲弹簧B。本发明通过设置可调节高分子滚轮式底辊组配合缓冲床B,不仅满足正常生产时缓冲要求,而且降低摩擦动能的损失；尤其是在出现皮带压停、重负荷启动不了的情况下,采用调整螺钉调整抬高高分子滚轮式底辊组,改变皮带与支持面的摩擦形式,大幅降低摩擦力,保证重负荷安全运行,其整体结构设计安全可靠,简单有效。(The invention discloses a belt conveyor buffer device and a manufacturing method thereof, wherein the belt conveyor buffer device comprises a buffer bed B and a polymer roller type bottom roller set; the polymer roller type bottom roller group is provided with five groups, each group of polymer roller type bottom roller group is respectively installed at the front end, the rear end and the middle bottom plate gap of the buffer bed B, the two ends of the buffer bed B are fixedly connected onto the belt conveyor support through the connecting bolts B, and the buffer spring B for slowing down the impact of materials is additionally arranged in the middle of the belt conveyor support. According to the invention, the adjustable polymer roller type bottom roller set is matched with the buffer bed B, so that the buffer requirement in normal production is met, and the loss of friction kinetic energy is reduced; especially, under the conditions that the belt is stopped under pressure and the heavy load cannot be started, the adjusting screws are adopted to adjust and raise the polymer roller type bottom roller group, the friction form of the belt and the supporting surface is changed, the friction force is greatly reduced, the safe operation of the heavy load is ensured, and the whole structural design is safe, reliable, simple and effective.)

1. A belt conveyor buffer device comprises a buffer bed B (6) and a polymer roller type bottom roller set (7); the belt conveyor is characterized in that the polymer roller type bottom roller sets (7) are provided with five groups, each group of polymer roller type bottom roller sets (7) are respectively installed at the front end, the rear end and the middle bottom plate gap of the buffer bed B (6), the two ends of the buffer bed B (6) are fixedly connected onto a belt conveyor support (8) through connecting bolts B (606), and a buffer spring B (605) for slowing down material impact is additionally arranged in the middle of the belt conveyor support (8).

2. The belt conveyor buffering mechanism as claimed in claim 1, wherein: the buffer bed B (6) comprises a buffer strip B (601), a buffer bed bottom plate B (602), a reinforcing rib plate B (603), a bottom beam B (604), a buffer spring B (605), a connecting bolt B (606) and a locking bolt B (607); the buffer strip B (601) is connected with a buffer bed bottom plate B (602) through a locking bolt B (607); the bottom plate B (602) of the buffer bed is connected with the bottom beam B (604) through a reinforcing rib plate B (603); and two ends of the bottom beam B (604) are fixedly connected to the belt conveyor support (8) through connecting bolts B (606).

3. The belt conveyor buffering mechanism as claimed in claim 2, wherein: the polymer roller type bottom roller set (7) comprises a polymer bottom roller (701), a bottom roller ear frame (702), a base (703), a roller shaft (704), a locking nut (705), a connecting bolt hole B (706) and an H-shaped bottom beam (72); the polymer bottom rollers (701) are respectively installed in bottom roller lug frames (702) of a base (703) and are connected in series through a roller shaft (704), two ends of the roller shaft (704) are locked through locking nuts (705), the assembled base (703) is placed in the middle of an H-shaped bottom beam (72), and two ends of the base (703) are connected with the H-shaped bottom beam (72) through bolts placed in connecting bolt holes B (706) to form a polymer roller type bottom roller group (7).

4. A belt conveyor buffering mechanism as claimed in claim 3, further comprising: the upper end face of the H-shaped bottom beam (72) is provided with a connecting bolt hole C (721), and the connecting bolt hole C (721) is butted with a connecting bolt hole B (706); a connecting bolt hole D (722) and an adjusting bolt hole (723) are arranged on the lower end face of the H-shaped bottom beam (72); the polymer roller type bottom roller group (7) is installed on the belt conveyor support (8) through a connecting bolt hole D (722) which is arranged at the bottom of the H-shaped bottom beam (72) in a penetrating mode through a bolt.

5. A manufacturing method of the belt conveyor buffering device according to claim 4, characterized by comprising the following steps:

s1: preparation of buffer bed B (6): connecting the buffer strip B (601) with a buffer bed bottom plate B (602) through a locking bolt B (607); the bottom plate B (602) of the buffer bed is connected with the bottom beam B (604) through a reinforcing rib plate B (603); two ends of the bottom beam B (604) are fixedly connected to the belt conveyor support (8) through connecting bolts B (606), and a buffer spring B (605) for slowing down material impact is additionally arranged in the middle of the belt conveyor support (8);

s2: manufacturing a polymer roller type bottom roller set (7): respectively installing the polymer bottom rollers (701) in bottom roller lug frames (702) of a base (703), connecting the polymer bottom rollers in series through a roller shaft (704), locking two ends of the roller shaft (704) through locking nuts (705), placing the assembled base (703) in the middle of an H-shaped bottom beam (72), and placing bolts in connecting bolt holes B (706) at two ends of the base (703) to connect the H-shaped bottom beam (72) to assemble a polymer roller type bottom roller group (7);

s3: and (3) taking five groups of the polymer roller type bottom roller group (7) manufactured in the step (S2) for later use, respectively installing each group of the polymer roller type bottom roller group (7) at the front end, the rear end and the middle bottom plate gap of the buffer bed B (6) manufactured in the step (S1), penetrating the polymer roller type bottom roller group (7) into the connecting bolt holes D (722) at the bottom of the H-shaped bottom beam (72) through bolts, and installing the polymer roller type bottom roller group (7) on the belt conveyor support (8).

6. A method for manufacturing a buffer device of a belt conveyor as in claim 5, wherein in normal operation, a gap e1 is left between the buffer strip B (601) and the belt (9) on the belt conveyor support (8), and the upper limit point of the polymer bottom roller (701) is lower than the height e2 of the upper surface of the buffer strip B (601).

7. The method for manufacturing a buffering device of a belt conveyor as claimed in claim 6, when the belt (9) is pressed and stopped and can not be started normally, after the bolts between the H-shaped bottom beam (72) of the high-molecular roller type bottom roller group (7) and the belt conveyor bracket (8) are disassembled, the jackscrew is screwed into the adjusting screw holes (723) at the two ends of the H-shaped bottom beam (72), after the five polymer roller type bottom roller groups (7) are lifted to the point that the upper quadrant point of the single polymer bottom roller (701) is higher than the height e3 of the upper surface of the buffer strip B (601), after a gasket with the same thickness is filled in the gap between the H-shaped bottom beam (72) and the belt conveyor bracket (8), and connecting the H-shaped bottom beam (72) with the belt conveyor bracket (8) by using bolts, starting the belt (9) to take materials after fastening the bolts, emptying the accumulated materials of the belt (9), and recovering the polymer roller type bottom roller group (7) to a normal installation state.

Technical Field

The invention relates to the technical field of heavy belt conveyors for mine transportation, in particular to a belt conveyor buffer device and a manufacturing method thereof.

Background

In mine transportation, a belt conveyor is often used to transport and transport ores, waste rocks, and the like. In the transfer process of the conveyor, in order to slow down the impact of the materials on the conveying rubber belt, a buffer device is arranged at the falling point of the materials.

Most of the conventional buffer devices used in belt conveyors are buffer carrier roller sets 3 or buffer beds a4, as shown in fig. 1 and 2. The buffer carrier roller group 3 is arranged between the belt conveyor tail part 1 and the belt conveyor head part 2, the buffer carrier roller group 3 has weak absorption impact force and poor buffer capacity, and carrier rollers can be separated from the groove under the gravity impact condition to cause accidents; the interval is great, and sealed effect is not good during the heavy load, easily appears running the material, runs grey phenomenon.

The conventional buffer bed A4 can effectively avoid such defects, as shown in FIGS. 3-5, the conventional buffer bed A4 comprises a buffer strip A501, a buffer bed bottom plate A502, a reinforcing rib plate A503, a bottom beam A504, a buffer spring A505, a connecting bolt A506 and a locking bolt A507; however, the conventional buffer bed A4 is in full-face contact with a belt, and the sliding friction has large kinetic energy loss and belt abrasion; the buffer strips A501 on the two sides of the buffer bed A4 are longitudinally arranged, so that the belt is often clamped into the gaps among the buffer strips A501 when the belt deviates, and the edge of the belt is abraded and even torn; particularly, in some production systems where the instantaneous feeding amount changes greatly, the situation that the belt is pressed to stop due to large instantaneous feeding amount or after heavy load stop due to other reasons occurs, and the belt and the buffer strip A501 are pressed to be dead due to excessive accumulated materials in the hopper. At this time, because the contact surface of the belt and the buffer strip A501 is too large, the weight of the material is large, the heavy load of the conveyor cannot be started or the conveyor cannot be started to slip, the conveyor can only be started after manual material cleaning, the labor intensity is high, and potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a belt conveyor buffering device and a manufacturing method thereof.A buffering bottom roller made of an adjustable high polymer material is arranged, so that the buffering requirement in normal production is met, and the loss of friction kinetic energy is reduced; especially, under the conditions that the belt is stopped under pressure and the heavy load cannot be started, the adjusting screws are adopted to adjust the lifting bottom roller group, the friction form between the belt and the supporting surface is changed, the friction force is greatly reduced, the heavy load safety is ensured, manual material cleaning is avoided, and potential safety hazards are eliminated, so that the problems of poor buffering capacity, easy deviation and jamming, large friction resistance and difficult heavy load starting caused by the defects of the buffer device of the conventional belt conveyor are solved.

In order to achieve the purpose, the invention provides the following technical scheme:

a belt conveyor buffer device comprises a buffer bed B and a polymer roller type bottom roller set; the polymer roller type bottom roller group is provided with five groups, each group of polymer roller type bottom roller group is respectively arranged at the front end, the rear end and the middle bottom plate gap of the buffer bed B, the two ends of the buffer bed B are fixedly connected onto the belt conveyor support through connecting bolts B, and a buffer spring B for slowing down the impact of materials is additionally arranged in the middle of the belt conveyor support.

Furthermore, the buffer bed B comprises a buffer strip B, a buffer bed bottom plate B, a reinforcing rib plate B, a bottom beam B, a buffer spring B, a connecting bolt B and a locking bolt B; the buffer strip B is connected with a buffer bed bottom plate B through a locking bolt B; the buffer bed bottom plate B is connected with the bottom beam B through a reinforcing rib plate B; and the two ends of the bottom beam B are fixedly connected to the belt conveyor support through connecting bolts B.

Furthermore, the polymer roller type bottom roller group comprises a polymer bottom roller, a bottom roller lug frame, a base, a roller shaft, a locking nut, a connecting bolt hole B and an H-shaped bottom beam; the polymer bottom rollers are respectively installed in bottom roller lug frames of the base and are connected in series through the roller shafts, the two ends of each roller shaft are locked through locking nuts, the assembled base is placed in the middle of the H-shaped bottom beam, and the two ends of the base are connected with the H-shaped bottom beam through bolts placed in the connecting bolt holes B to form the polymer roller type bottom roller set.

Furthermore, a connecting bolt hole C is formed in the upper end face of the H-shaped bottom beam and is in butt joint with the connecting bolt hole B; a connecting bolt hole D and an adjusting bolt hole are formed in the lower end face of the H-shaped bottom beam; the polymer roller type bottom roller group is installed on the belt conveyor support through a connecting bolt hole D formed in the bottom of the H-shaped bottom beam through a bolt.

The invention provides another technical scheme: a manufacturing method of a belt conveyor buffer device comprises the following steps:

s1: manufacturing a buffer bed B: connecting the buffer strip B with a buffer bed bottom plate B through a locking bolt B; the bottom plate B of the buffer bed is connected with the bottom beam B through a reinforcing rib plate B; two ends of the bottom beam B are fixedly connected to the belt conveyor support through connecting bolts B, and a buffer spring B for slowing down material impact is additionally arranged in the middle of the belt conveyor support;

s2: manufacturing a polymer roller type bottom roller set: respectively installing the polymer bottom rollers in bottom roller lug frames of the base, connecting the polymer bottom rollers in series through the roller shafts, locking two ends of each roller shaft through locking nuts, placing the assembled base in the middle of the H-shaped bottom beam, and connecting two ends of the base with the H-shaped bottom beam through bolts placed in connecting bolt holes B to assemble a polymer roller type bottom roller set;

s3: and taking five groups of the polymer roller type bottom roller group manufactured in the step S2 for later use, wherein each group of the polymer roller type bottom roller group is respectively installed at the front end, the rear end and the middle bottom plate gap of the buffer bed B manufactured in the step S1, the polymer roller type bottom roller group penetrates through a connecting bolt hole D at the bottom of the H-shaped bottom beam through a bolt, and the polymer roller type bottom roller group is installed on a belt conveyor support.

Furthermore, in normal operation, a gap e1 is left between the buffer strip B and the belt on the belt conveyor support, and the upper quadrant point of the polymer bottom roller is lower than the upper surface of the buffer strip B by the height e 2.

Furthermore, when the belt is pressed to stop and cannot be normally started, the bolts between the H-shaped bottom beam of the high-molecular roller type bottom roller set and the belt conveyor support are detached, jackscrews are screwed into adjusting screw holes at two ends of the H-shaped bottom beam, the tops of the five high-molecular roller type bottom roller sets are raised to the extent that the upper quadrant point of a single high-molecular bottom roller is higher than the height e3 of the upper surface of the buffer strip B, gaskets with the same thickness are filled in the gap between the H-shaped bottom beam and the belt conveyor support, the H-shaped bottom beam is connected with the belt conveyor support through the bolts, the belt can be started after the bolts are fastened, and the high-molecular roller type bottom roller set is restored to a normal installation state after the accumulated material of the belt is emptied.

Compared with the prior art, the invention has the beneficial effects that:

according to the belt conveyor buffering device and the manufacturing method thereof, the adjustable polymer roller type bottom roller set is arranged to be matched with the buffering bed B, so that the buffering requirement in normal production is met, and the loss of friction kinetic energy is reduced; especially, under the conditions that a belt stops under pressure and a heavy load cannot be started, the adjusting screw is adopted to adjust and raise the high-molecular roller type bottom roller group, the friction form between the belt and a supporting surface is changed, the friction force is greatly reduced, the safe operation of the heavy load is ensured, manual material cleaning is avoided, potential safety hazards are eliminated, and the problems of poor buffering capacity, easy deviation jamming, large friction resistance and difficult heavy load starting caused by the deficiency of a buffering device of the belt conveyor are scientifically and reasonably solved; the whole structure design is safe, reliable, simple and effective.

Drawings

FIG. 1 is a schematic view of a belt conveyor employing a conventional buffer roller set;

FIG. 2 is a schematic view of a conventional buffer bed belt conveyor;

FIG. 3 is a schematic view of a conventional buffer bed;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a schematic view of a buffering mechanism of the heavy duty belt conveyor of the present invention;

FIG. 7 is a side view of FIG. 6 in accordance with the present invention;

FIG. 8 is a top view of the present invention from FIG. 6;

FIG. 9 is a schematic view of a polymer roller type bottom roller set component of the present invention;

FIG. 10 is a side view of FIG. 9 of the present invention;

FIG. 11 is a front view of a polymer roller type bottom roller set of the present invention;

FIG. 12 is a side view of FIG. 11 in accordance with the present invention;

FIG. 13 is a plan view of an H-shaped sill of the present invention;

FIG. 14 is a side cross-sectional view of an H-shaped sill of the present invention;

FIG. 15 is a schematic view of a normal operation and installation of the cushioning device of the present invention;

FIG. 16 is a schematic view of the installation of the buffering device for processing belt in a stopped state.

In the figure: 1. a belt tail section; 2. a belt head portion; 3. a buffer carrier roller set; 4. a buffer bed A; 501. a buffer bar A; 502. a buffer bed bottom plate A; 503. a reinforcing rib plate A; 504. a bottom beam A; 505. A buffer spring A; 506. a connecting bolt A; 507. locking the bolt A; 6. a buffer bed B; 601. a buffer bar B; 602. a buffer bed bottom plate B; 603. a reinforcing rib plate B; 604. a bottom beam B; 605. a buffer spring B; 606. a connecting bolt B; 607. locking the bolt B; 7. a polymer roller type bottom roller set; 701. a polymer bottom roller; 702. a bottom roll ear frame; 703. a base; 704. a roll shaft; 705. locking the nut; 706. a connecting bolt hole B; 72. an H-shaped bottom beam; 721. a connecting bolt hole C; 722. a connecting bolt hole D; 723. adjusting screw holes; 8. a belt conveyor bracket; 9. a belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 6-16, an embodiment of the invention provides a belt conveyor buffering device, which includes a buffering bed B6 and a polymer roller type bottom roller set 7; the polymer roller type bottom roller group 7 is provided with five groups, each group of polymer roller type bottom roller group 7 is respectively arranged at the front end, the rear end and the middle bottom plate gap of the buffer bed B6, the two ends of the buffer bed B6 are fixedly connected to the belt conveyor support 8 through connecting bolts B606, and a buffer spring B605 for slowing down the impact of materials is additionally arranged in the middle of the belt conveyor support 8. The buffer bed B6 comprises a buffer strip B601, a buffer bed bottom plate B602, a reinforcing rib plate B603, a bottom beam B604, a buffer spring B605, a connecting bolt B606 and a locking bolt B607; the buffer strip B601 is connected with a buffer bed bottom plate B602 through a locking bolt B607; the buffer bed bottom plate B602 is connected with the bottom beam B604 through a reinforcing rib plate B603; two ends of the bottom beam B604 are fixedly connected to the belt conveyor support 8 through connecting bolts B606; the polymer roller type bottom roller group 7 comprises a polymer bottom roller 701, a bottom roller lug frame 702, a base 703, a roller shaft 704, a locking nut 705, a connecting bolt hole B706 and an H-shaped bottom beam 72; the polymer bottom rollers 701 are respectively installed in bottom roller lug frames 702 of the base 703 and are connected in series through the roller shafts 704, the two ends of each roller shaft 704 are locked through locking nuts 705, the assembled base 703 is placed in the middle of the H-shaped bottom beam 72, and the two ends of each base 703 are connected with the H-shaped bottom beam 72 through bolts placed in connecting bolt holes B706 to form the polymer roller type bottom roller group 7; the upper end face of the H-shaped bottom beam 72 is provided with a connecting bolt hole C721, and the connecting bolt hole C721 is butted with the connecting bolt hole B706; a connecting bolt hole D722 and an adjusting bolt hole 723 are arranged on the lower end surface of the H-shaped bottom beam 72; the polymer roller type bottom roller group 7 is installed on the belt conveyor bracket 8 through a connecting bolt hole D722 which is inserted into the bottom of the H-shaped bottom beam 72 through a bolt.

The working principle of the embodiment of the invention is as follows: when the whole buffering device works normally, a gap e1 (about 20mm) is reserved between the buffering strip B601 and the belt 9 on the belt conveyor support 8, and the upper quadrant point of the polymer bottom roller 701 is lower than the upper surface of the buffering strip B601 by e2 (about 20-25 mm); when the belt 9 is pressed to stop and cannot be normally started, the bolts between the H-shaped bottom beam 72 of the polymer roller type bottom roller set 7 and the belt conveyor support 8 are detached, then the top threads are screwed into the adjusting screw holes 723 at the two ends of the H-shaped bottom beam 72, the five polymer roller type bottom roller sets 7 are lifted until the upper quadrant point of the single polymer bottom roller 701 is higher than the height e3 of the upper surface of the buffer strip B601, gaskets with the same thickness are filled in the gap between the H-shaped bottom beam 72 and the belt conveyor support 8, the H-shaped bottom beam 72 is connected with the belt conveyor support 8 by the bolts, the belt 9 can be started after the bolts are fastened, the accumulated material of the belt 9 is emptied, and then the polymer roller type bottom roller set 7 is restored to the normal installation state.

In order to better explain the embodiment of the invention, a manufacturing method of the belt conveyor buffer device is also provided, which comprises the following steps:

the first step is as follows: manufacturing a buffer bed B6: connecting the buffer strip B601 with a buffer bed bottom plate B602 through a locking bolt B607; the bottom plate B602 of the buffer bed is connected with the bottom beam B604 through a reinforcing rib plate B603; two ends of the bottom beam B604 are fixedly connected to the belt conveyor support 8 through a connecting bolt B606, and a buffer spring B605 for slowing down the impact of materials is additionally arranged in the middle of the belt conveyor support 8;

the second step is that: manufacturing a polymer roller type bottom roller set 7: respectively installing the polymer bottom rollers 701 in bottom roller lug frames 702 of a base 703, connecting the polymer bottom rollers in series through a roller shaft 704, locking two ends of the roller shaft 704 through locking nuts 705, placing the assembled base 703 in the middle of an H-shaped bottom beam 72, and connecting two ends of the base 703 with the H-shaped bottom beam 72 through bolts placed in connecting bolt holes B706 to assemble a polymer roller type bottom roller group 7;

the third step: and (3) taking five groups of the polymer roller type bottom roller group 7 manufactured in the step two for standby, respectively installing each group of polymer roller type bottom roller group 7 at the gaps of the front end, the rear end and the middle bottom plate of the buffer bed B6 manufactured in the step one, penetrating the polymer roller type bottom roller group 7 into the connecting bolt holes D722 at the bottom of the H-shaped bottom beam 72 through bolts, and installing the polymer roller type bottom roller group 7 on the belt conveyor support 8.

In summary, the following steps: according to the belt conveyor buffering device and the manufacturing method thereof, the adjustable polymer roller type bottom roller set 7 is arranged to be matched with the buffering bed B6, so that the buffering requirement in normal production is met, and the loss of friction kinetic energy is reduced; especially, under the conditions that the belt 9 is stopped under pressure and the heavy load cannot be started, the high-molecular roller type bottom roller group 7 is adjusted and lifted by adopting the adjusting screws, the friction form between the belt 9 and the supporting surface is changed, the friction force is greatly reduced, the safe operation of the heavy load is ensured, the manual material cleaning is avoided, the potential safety hazard is eliminated, and the problems of poor buffering capacity, easy deviation and jamming, large friction resistance and difficult heavy load starting caused by the deficiency of the buffering device of the belt conveyor are scientifically and reasonably solved; the whole structure design is safe, reliable, simple and effective.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.