Vertical tensioning heavy hammer box buffer device of belt conveyor

Abstract

The utility model discloses a buffer device for a vertical tensioning heavy hammer box of a belt conveyor, belongs to the technical field of belt conveyor equipment, and is used for buffering the vertical tensioning heavy hammer box when the vertical tensioning heavy hammer box falls. According to the technical scheme, a plurality of vertical lug plates are welded to the four edges of the top face of a support respectively, every two lug plates form a group, a steel wire rope fixing plate is arranged between every two lug plates, opposite shaft holes are formed in the upper portions of the two lug plates, and shaft holes are formed in the rear portions of the steel wire rope fixing plates and are opposite to the shaft holes of the lug plates; steel wire rope connecting holes are formed in the front ends of the steel wire rope fixing plates, the multiple sets of lug plates and the steel wire rope fixing plates on the four sides of the top face of the support are opposite in a pairwise mode, and the two ends of each steel wire rope are connected with the steel wire rope connecting holes of the steel wire rope fixing plates on the four sides of the top face of the support respectively. The multiple steel wire ropes intersect vertically to form a steel wire rope net. The buffering device is simple in structure, convenient to use and capable of effectively buffering the falling vertical tensioning heavy hammer box and preventing safety accidents from happening.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of buffer device when vertical tension heavy hammer box of belt conveyor drops, belong to belt conveyor equipment technical field. BACKGROUND

[0002] Belt conveyor is widely used in metallurgy, mine, power and other industries, for conveying various materials. The tensioning mode of belt conveyor is divided into spiral tensioning, vertical tensioning, vehicle tensioning, hydraulic tensioning and electric winch tensioning. Under normal circumstances, vertical tensioning is widely used because it can realize automatic compensation of the elongation of the conveyor belt, has small floor space, simple structure and convenient maintenance. However, with the approaching of the service life of the conveyor belt and the aging of the rubber, there is a risk of belt breakage. Once the belt breaks, the tensioning force disappears instantly, and the vertical tension heavy hammer box directly hits the tensioning platform, causing a safety accident, which may even result in serious injury or death. There is no safety device for the vertical tension heavy hammer box to prevent it from falling, which poses a serious safety hazard and needs to be addressed to prevent accidents and ensure the safety of workers. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a vertical tension heavy hammer box buffer device for a belt conveyor, which can effectively prevent the vertical tension heavy hammer box from directly hitting the tensioning platform when the conveyor belt breaks, prevent accidents, and ensure the safety of workers on site.

[0004] The technical solution to solve the above technical problems is:

[0005] A vertical tension heavy hammer box buffer device for a belt conveyor, comprising a bracket, an ear plate, a steel wire rope fixing plate, a pin shaft and a steel wire rope. The bracket is a cubic steel frame. The top surface of the bracket is welded with multiple vertical ear plates on each edge. Each two ear plates form a group. There is a steel wire rope fixing plate between each two ear plates. The distance between the two ear plates matches the thickness of the steel wire rope fixing plate. The upper part of each two ear plates has opposite shaft holes. The rear part of the steel wire rope fixing plate has a shaft hole opposite to the shaft hole of the ear plate. The pin shaft connects the steel wire rope fixing plate and the ear plate through the shaft holes. The front end of the steel wire rope fixing plate has a steel wire rope connection hole. The multiple ear plates and steel wire rope fixing plates on each edge of the top surface of the bracket are opposite to each other in pairs. The two ends of the multiple steel wire ropes are connected to the steel wire rope connection holes of the steel wire rope fixing plates on each edge of the top surface of the bracket. The steel wire ropes connected by the multiple steel wire rope fixing plates on each edge of the top surface of the bracket are vertically crossed to form a steel wire rope net.

[0006] The vertical tension heavy hammer box buffer device of the belt conveyor, four side walls of the cubic steel frame of the support are respectively composed of a plurality of vertical frames and horizontal frames, the vertical frames and the horizontal frames are respectively composed of angle steels and steel plates welded together, the plurality of vertical frames and the horizontal frames are cross-welded and connected, a plurality of parallel horizontal frames are welded and connected between the four side walls of the support, a plurality of parallel horizontal frames are welded on the top surface and the bottom surface of the support, and the lower end of the support is welded and fixed with the embedded steel plate of the tension foundation.

[0007] The vertical tension heavy hammer box buffer device of the belt conveyor, the middle part of the plurality of steel wire rope fixing plates on the four edges of the top surface of the support is respectively provided with opposite synchronous rod holes, the synchronous rod is a round rod, the diameter of the synchronous rod matches the diameter of the synchronous rod hole of the steel wire rope fixing plate, the four edges of the top surface of the support are respectively provided with the synchronous rod passing through the synchronous rod holes of the plurality of steel wire rope fixing plates to connect the plurality of steel wire rope fixing plates, and the two ends of the synchronous rod are respectively provided with threads, and the fixing nuts are fixedly connected with the plate surfaces of the outermost steel wire rope fixing plates through the threads.

[0008] The vertical tension heavy hammer box buffer device of the belt conveyor, the outer end of the pin shaft connected with the ear plate and the steel wire rope fixing plate is sleeved with a torsional spring, one end of the torsional spring is welded with the plate surface of the ear plate, and the other end of the torsional spring is welded with the plate surface of the steel wire rope fixing plate.

[0009] The vertical tension heavy hammer box buffer device of the belt conveyor, the top surface of the support is provided with a buffer rubber plate, the buffer rubber plate is located directly below the steel wire rope net, the area of the buffer rubber plate is greater than that of the steel wire rope net, and the buffer rubber plate is fixed on the top surface of the support through bolts.

[0010] The vertical tension heavy hammer box buffer device of the belt conveyor, the top surface of the support is provided with a buffer rubber plate, the buffer rubber plate is located directly below the steel wire rope net, the area of the buffer rubber plate is greater than that of the steel wire rope net, and the buffer rubber plate is fixed on the top surface of the support through bolts.

[0011] The vertical tension heavy hammer box buffer device of the belt conveyor, the top surface of the support is provided with a buffer rubber plate, the buffer rubber plate is located directly below the steel wire rope net, the area of the buffer rubber plate is greater than that of the steel wire rope net, and the buffer rubber plate is fixed on the top surface of the support through bolts.

[0012] The vertical tension heavy hammer box buffer device of the belt conveyor, the top surface of the support is provided with a buffer rubber plate, the buffer rubber plate is located directly below the steel wire rope net, the area of the buffer rubber plate is greater than that of the steel wire rope net, and the buffer rubber plate is fixed on the top surface of the support through bolts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is a structural schematic view of the support;

[0015] Figure 3 is a structural schematic view of the ear plate, the steel wire rope fixing plate and the steel wire rope;

[0016] Figure 4 is a structural schematic view of the ear plate;

[0017] Figure 5 is a structural schematic view of the steel wire rope fixing plate.

[0018] The marks in the figure are as follows: support 1, ear plate 2, steel wire rope fixing plate 3, pin shaft 4, split pin 5, shaft hole 6, steel wire rope connecting hole 7, steel wire rope 8, steel wire rope net 9, vertical frame 10, horizontal frame 11, synchronous rod 12, synchronous rod hole 13, fixing nut 14, torsional spring 15, buffer rubber plate 16. DETAILED DESCRIPTION

[0019] The utility model is composed of support 1, ear plate 2, steel wire rope fixing plate 3, pin shaft 4, split pin 5, steel wire rope 8, synchronous rod 12, fixing nut 14, torsional spring 15 and buffer rubber plate 16.

[0020] Figure 1 、 2 It is shown that the support 1 is a cubic steel frame, the support 1 is the main body and support frame of the buffer device, and the buffer structure is installed on the top surface of the support. The four side walls of the cubic steel frame of the support 1 are composed of multiple vertical frames 10 and horizontal frames 11 respectively, the vertical frames 10 and horizontal frames 11 are welded (or are made of channel steel) by angle steel and steel plate respectively, the multiple vertical frames 10 and horizontal frames 11 are cross-welded and connected, multiple parallel horizontal frames 11 are welded and connected between the four side walls of the support 1, multiple parallel horizontal frames 11 are welded on the top surface and bottom surface of the support 1, and the lower end of the support 1 is welded and fixed with the tensioning foundation embedded steel plate.

[0021] Figure 1 、 3 It is shown that multiple vertical ear plates 2 are welded on the four edges of the top surface of the support 1 respectively, the ear plate 2 is a rectangular plate, the upper end of the ear plate 2 is provided with a shaft hole 6 for connecting the steel wire rope fixing plate 3, every two ear plates 2 form a group, the shaft holes 6 at the upper parts of the two ear plates 2 are opposite, and the distance between the two ear plates 2 matches the thickness of the steel wire rope fixing plate 3.

[0022] Figure 1 、 3, 5 shows that there is a steel wire rope fixing plate 3 between every two ear plates 2, the steel wire rope fixing plate 3 is a rectangular plate, the rear part of the steel wire rope fixing plate 3 is provided with an axle hole 6 opposite to the axle hole of the ear plate 2, a pin shaft 4 is rotationally connected with the steel wire rope fixing plate 3 and the ear plate 2 through the axle hole 6, and one end of the pin shaft 4 is fixed by a split pin 5. The front end of the steel wire rope fixing plate 3 is provided with a steel wire rope connecting hole 7 for connecting the steel wire rope 8.

[0023] Figure 1 , 3 As shown in the figure, the two ends of the plurality of steel wire ropes 8 are connected with the steel wire rope connecting holes 7 of the steel wire rope fixing plates 3 on the top surface of the support 1, and the steel wire ropes 8 of the plurality of steel wire rope fixing plates 3 on the four edges of the top surface of the support 1 are vertically crossed to form a steel wire rope net 9.

[0024] Figure 1 , 3 As shown in the figure, the middle parts of the plurality of steel wire rope fixing plates 3 on the four edges of the top surface of the support 1 are respectively provided with opposite synchronous rod holes 13, the synchronous rod 12 is a round rod, the diameter of the synchronous rod 12 matches the diameter of the synchronous rod hole 13 of the steel wire rope fixing plate 3, the synchronous rod 12 passes through the synchronous rod holes 13 of the plurality of steel wire rope fixing plates 3 on the four edges of the top surface of the support 1 to connect the plurality of steel wire rope fixing plates 3, so that the plurality of steel wire rope fixing plates 3 on the four edges of the top surface of the support 1 can be synchronously swung. The two ends of the synchronous rod 12 are respectively provided with threads, and the fixed nuts 14 are fixedly connected with the plate surfaces of the outermost steel wire rope fixing plates 3 through the threads, and the synchronous rod 12 can make the plurality of steel wire ropes 8 synchronously buffer.

[0025] Figure 1 , 3 As shown in the figure, the outer end of the pin shaft 4 connecting the ear plate 2 and the steel wire rope fixing plate 3 is sleeved with a torsional spring 15, one end of the torsional spring 15 is welded with the plate surface of the ear plate 2, and the other end of the torsional spring 15 is welded with the plate surface of the steel wire rope fixing plate 3. The torsional spring 15 is installed between the ear plate 2 and the steel wire rope fixing plate 3, and when the vertically tensioned weight box falls on the steel wire rope net 9, the torsional spring 15 can play a rebounding role, reducing the potential energy of the vertically tensioned weight box.

[0026] Figure 1 As shown in the figure, the top surface of the support 1 is provided with a buffer rubber plate 16, the buffer rubber plate 16 is located directly below the steel wire rope net 9, the area of the buffer rubber plate 16 is greater than that of the steel wire rope net 9, and the buffer rubber plate 16 is fixed on the top surface of the support 1 through bolts. The buffer rubber plate 16 is located directly below the steel wire rope net 9, and plays a secondary buffering role when the potential energy of the vertically tensioned weight box is large.

[0027] The use process of the utility model is as follows:

[0028] When the belt breaks, the vertical tension weight box falls down, and the vertical tension weight box falls on the steel wire rope net 9 composed of a plurality of steel wire ropes 8, the steel wire rope net 9 is impacted and moves downward, the connected steel wire rope fixing plate 3 is pulled to rotate, the steel wire rope net 9 is impacted to generate a strong rebound force, the rebound force of the steel wire rope net 9 can play a buffering role, and the falling potential energy of the vertical tension weight box is greatly reduced; at the same time, when the vertical tension weight box falls on the steel wire rope net 9, the torsional spring 15 plays a rebound role, and the potential energy of the vertical tension weight box is reduced; the buffer rubber plate 16 is directly below the steel wire rope net 9, and plays a secondary buffering role when the potential energy of the vertical tension weight box is large.

[0029] An embodiment of the utility model is as follows:

[0030] The length of the support 1 is 2280mm, the width is 1500mm, and the height is 2000mm;

[0031] The length of the ear plate 2 is 360mm, the width is 120mm, the height is 30mm, and the diameter of the shaft hole 6 is 65mm;

[0032] The length of the steel wire rope fixing plate 3 is 360mm, the width is 120mm, the height is 40mm, the diameter of the steel wire rope connecting hole 7 is 80mm, the length is 40mm, the diameter of the synchronous rod hole 13 is 40mm, and the length is 40mm;

[0033] The diameter of the pin shaft 4 is 50mm, and the length is 170mm;

[0034] The diameter of the steel wire rope 8 is 20mm, and the length is 880mm;

[0035] The diameter of the synchronous rod 12 is 38mm, and the length is 1630mm;

[0036] The diameter of the torsional spring 15 is 5mm, and the length is 45mm;

[0037] The length of the buffer rubber plate 16 is 1210mm, the width is 800mm, and the thickness is 50mm.

Claims

1. A vertical tensioning counterweight box buffer device for a belt conveyor, characterized in that: It includes a bracket (1), ear plates (2), a wire rope fixing plate (3), a pin (4), and a wire rope (8). The bracket (1) is a cubic steel frame. Multiple vertical ear plates (2) are welded to the four sides of the top surface of the bracket (1). Each pair of ear plates (2) forms a group. There is a wire rope fixing plate (3) between each pair of ear plates (2). The distance between the two ear plates (2) matches the thickness of the wire rope fixing plate (3). The upper part of the two ear plates (2) has opposing shaft holes (6). The rear part of the wire rope fixing plate (3) has shaft holes (6) that correspond to the shaft holes (6) of the ear plates (2). 6) Relatively, the pin (4) rotatably connects the wire rope fixing plate (3) and the ear plate (2) through the shaft hole (6). The front end of the wire rope fixing plate (3) has a wire rope connection hole (7). The multiple sets of ear plates (2) and wire rope fixing plates (3) on the four sides of the top surface of the bracket (1) are opposite each other. The two ends of multiple wire ropes (8) are connected to the wire rope connection holes (7) of the wire rope fixing plates (3) on the four sides of the top surface of the bracket (1). The wire ropes (8) connected to the multiple wire rope fixing plates (3) on the four sides of the top surface of the bracket (1) are perpendicularly crossed to form a wire rope net (9).

2. The vertical tensioning counterweight box buffer device for a belt conveyor according to claim 1, characterized in that: The four side walls of the cubic steel frame of the bracket (1) are composed of multiple vertical frames (10) and horizontal frames (11), respectively. The vertical frames (10) and horizontal frames (11) are respectively welded from angle steel and steel plate. Multiple vertical frames (10) and horizontal frames (11) are cross-welded together. Multiple parallel horizontal frames (11) are welded together between the four side walls of the bracket (1). Multiple parallel horizontal frames (11) are welded to the top and bottom surfaces of the bracket (1). The lower end of the bracket (1) is welded and fixed to the pre-embedded steel plate of the tension foundation.

3. The vertical tensioning counterweight box buffer device for a belt conveyor according to claim 1, characterized in that: The bracket (1) has multiple wire rope fixing plates (3) on the top four sides of the bracket (1) with corresponding synchronous rod holes (13) in the middle. The synchronous rod (12) is a round rod with a diameter that matches the diameter of the synchronous rod hole (13) of the wire rope fixing plate (3). The bracket (1) has synchronous rods (12) on the top four sides that pass through the synchronous rod holes (13) of the multiple wire rope fixing plates (3) to connect the multiple wire rope fixing plates (3). The two ends of the synchronous rod (12) are threaded. The fixing nut (14) fixes the two ends of the synchronous rod (12) to the outermost wire rope fixing plate (3) through the thread.

4. The vertical tensioning counterweight box buffer device for a belt conveyor according to claim 1, characterized in that: The outer end of the pin (4) connecting the ear plate (2) and the wire rope fixing plate (3) is fitted with a torsion spring (15). One end of the torsion spring (15) is welded to the plate surface of the ear plate (2), and the other end of the torsion spring (15) is welded to the plate surface of the wire rope fixing plate (3).

5. The vertical tensioning counterweight box buffer device for a belt conveyor according to claim 1, characterized in that: A buffer rubber plate (16) is placed on the top surface of the bracket (1). The buffer rubber plate (16) is located directly below the wire rope net (9). The area of ​​the buffer rubber plate (16) is larger than that of the wire rope net (9). The buffer rubber plate (16) is fixed to the top surface of the bracket (1) by bolts.

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