A device for quickly replacing a belt conveyor idler

Abstract

A device for quickly replacing belt conveyor idlers, belonging to the technical field of belt conveyor maintenance tools, is used for quickly replacing belt conveyor idlers. The technical solution is as follows: a support plate is installed at the upper end of a support rod. The support plate is a semi-circular arc-shaped long groove plate. The bottom surface of the support plate is rotatably connected to the upper end of the support rod. The front part of a pry bar is placed in the long groove of the support plate. The base plate is a horizontally placed square plate. The lower end of the support rod is welded to the surface of the base plate. A triangular bracket is welded to the lower end of the base plate. The triangular bracket consists of two square plates. The upper ends of the two square plates are welded together, and the lower ends of the two square plates are inclined to both sides to form a triangular frame. A top is welded between the bottom surface of the base plate and the upper surface of one side of the triangular bracket. Fastening bolts pass through connecting holes to securely connect the two square plates of the triangular bracket. This utility model has a simple structure and is easy to use, effectively reducing labor intensity and improving the efficiency of belt conveyor idler replacement maintenance.

Description

Technical Field

[0001] This utility model relates to a device for quickly replacing idler rollers of a belt conveyor, belonging to the technical field of belt conveyor maintenance tools. Background Technology

[0002] In the steel production process, belt conveyors are used for the continuous transport of granular materials such as ore, coke, and coal. Long-distance belt conveyors have multiple sets of idler frames, on which idlers support the belt carrying the material. Under long-term belt-driven rolling and friction, idlers frequently experience wear and breakage, as well as bearing damage and jamming. If damaged idlers are not replaced promptly, it can lead to belt scratches, breakage, or even fires. Currently, there are no specialized tools for replacing damaged idlers. The common method is to use two pry bars, one on each side of the belt, to manually pry open a gap, lift the conveyor belt upwards, and then allow personnel to enter the space between the upper and lower belts to remove the damaged idler and replace it with a new one. However, during the use of pry bars, the support points on both sides of the belt are the supports, and the smooth contact between the support planes and the pry bars makes slippage easy, potentially causing injury to personnel. Meanwhile, the limited operating space and lifting height during idler roller replacement make it difficult to find suitable support points for the pry bar, increasing the difficulty of using the pry bar, making operation very inconvenient, and causing excessive time consumption, which affects material conveying and normal production operations. Therefore, it is essential to improve the existing method for replacing belt conveyor idler rollers. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device that can quickly replace belt conveyor idlers. This device can quickly replace belt conveyor idlers after they are damaged, avoid the pry bar from slipping out during use and causing safety accidents, and at the same time provide a reasonable support point for the pry bar, reduce the difficulty of operation, shorten the maintenance time, improve the maintenance efficiency, and ensure the normal operation of production.

[0004] The technical solution to the above technical problem is:

[0005] A device for quickly replacing idler rollers of a belt conveyor includes a pry bar, a support rod, a tray, a base plate, a triangular bracket, a top plate, and fastening bolts. The support rod is placed vertically, and the tray is mounted on the upper end of the support rod. The tray is a semi-circular arc-shaped long groove plate, and the bottom surface of the tray is rotatably connected to the upper end of the support rod. The front part of the pry bar is placed in the long groove of the tray plate. The base plate is a horizontally placed square plate, and the lower end of the support rod is welded to the surface of the base plate. A triangular bracket is welded to the lower end of the base plate. The triangular bracket consists of two square plates, the upper ends of which are welded together, and the lower ends of the two square plates are inclined to both sides to form a triangular frame. The lower ends of the two square plates of the triangular bracket each have connecting holes, and the fastening bolts pass through the connecting holes to fasten the lower end of the triangular bracket to the idler roller bracket.

[0006] The aforementioned device for quickly replacing conveyor belt rollers features a universal joint connection between the lower part of the support plate and the upper end of the support rod. This universal joint consists of a universal ball, a connecting rod, a universal rotating seat, a rotating seat cover, and fastening bolts. The universal ball is a sphere, and the lower end of the connecting rod is fixedly connected to the upper end of the universal ball. The upper end of the connecting rod is fixedly connected to the bottom surface of the support plate. The universal rotating seat is a cylinder, fixed to the upper end of the support rod. The top surface of the universal rotating seat has a hemispherical groove, the diameter of which matches the diameter of the universal ball. The rotating seat cover is placed on the universal ball... The upper end of the rotating seat and the lower bottom surface of the rotating seat cover have hemispherical grooves that match the hemispherical grooves of the universal rotating seat. The universal ball is placed in the two hemispherical grooves opposite to the universal rotating seat and the rotating seat cover. The universal ball and the two hemispherical grooves are in a rotating fit. The upper end of the rotating seat cover has a round hole with a diameter larger than that of the connecting rod. The connecting rod at the upper end of the universal ball is connected to the support plate through the round hole. The outer periphery of the hemispherical grooves of the universal rotating seat and the rotating seat cover has corresponding connecting screw holes. The assembly bolts connect the universal rotating seat and the rotating seat cover into one unit through the connecting screw holes.

[0007] The aforementioned device for quickly replacing belt conveyor rollers has a flat and smoothly polished front end on the pry bar.

[0008] The aforementioned device for quickly replacing belt conveyor idlers has a top plate welded between the bottom surface of the base plate and the upper surface of one side plate of the triangular bracket. The top plate is a right-angled trapezoid, with its upper end welded to the bottom surface of the base plate and its lower end welded to the side plate of the triangular bracket.

[0009] The aforementioned device for quickly replacing belt conveyor idlers has a triangular bracket whose apex angle is the same as that of the idler bracket. The triangular bracket is fitted onto the lower crossbeam of the idler bracket. Each of the two square plates of the triangular bracket has two parallel connecting holes, and two fastening bolts are inserted into the two connecting holes. The two fastening bolts are located below the lower crossbeam of the idler bracket and are tightly connected to the lower surface of the lower crossbeam of the idler bracket.

[0010] The beneficial effects of this utility model are:

[0011] The connection between the pallet and the support rod in this invention is a universal connection. The pallet will change with the change of the direction of the crowbar, always keeping the crowbar inside the pallet and preventing the crowbar from slipping. The triangular bracket is fitted on the crossbeam of the roller bracket. The triangular bracket can drive the support rod and the crowbar to move, providing a reasonable support point for the crowbar and reducing the difficulty of lifting the belt with the crowbar.

[0012] This utility model has a simple structure and is easy to use. It can effectively reduce labor intensity and improve the efficiency of maintenance work such as replacing belt conveyor rollers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the universal connection structure between the pallet and the support rod;

[0015] Figure 3 This is a schematic diagram of the usage state of this utility model.

[0016] The following are the markings in the diagram: 1. Crowbar; 2. Support plate; 3. Base plate; 4. Triangular bracket; 5. Top plate; 6. Fastening bolt; 7. Roller bracket; 8. Roller; 9. Belt; 10. Ball joint; 11. Connecting rod; 12. Universal rotating seat; 13. Rotating seat cover; 14. Assembly bolt; 15. Connecting bolt; 16. Detailed Implementation

[0017] This utility model consists of a crowbar 1, a support plate 2, a support rod 3, a base plate 4, a triangular bracket 5, a top plate 6, fastening bolts 7, and a universal joint.

[0018] Figure 1 As shown, the pry bar 1 is a long bar with a flat and smooth front end, making it easy to insert under the belt 10 without damaging the belt 10.

[0019] Figure 1 The display shows that the support rod 3 is placed vertically, and a support plate 2 is installed on the upper end of the support rod 3. The support plate 2 is used to support the crowbar 1. The base plate 4 is a horizontally placed square plate. The lower end of the support rod 3 is welded to the surface of the base plate 4. A triangular bracket 5 is welded to the lower end of the base plate 4. The triangular bracket 5 is used to connect with the roller bracket 8. The triangular bracket 5 can drive the support rod 3 and the crowbar 1 to move, providing a reasonable support point for the crowbar 1.

[0020] Figure 1 , 2The display shows that the support plate 2 is a long, semi-circular groove plate, and the front part of the crowbar 1 is placed in the long groove of the support plate 2. The lower part of the support plate 2 is connected to the upper end of the support rod 3 by a universal joint. With the universal joint, the support plate 2 will change as the direction of the crowbar 1 changes, always keeping the crowbar 1 within the support plate 2 and preventing the crowbar 1 from slipping.

[0021] Figure 2 The universal joint consists of a universal ball 11, a connecting rod 12, a universal swivel seat 13, a swivel seat cover 14, and assembly bolts 15. The universal ball 11 is a sphere, and the lower end of the connecting rod 12 is fixedly connected to the upper end of the universal ball 11. The upper end of the connecting rod 12 is fixedly connected to the bottom surface of the support plate 2. The universal swivel seat 13 is a cylinder, fixed to the upper end of the support rod 3. The top surface of the universal swivel seat 13 has a hemispherical groove, the diameter of which matches the diameter of the universal ball 11. The universal ball 11 can rotate within the hemispherical groove of the universal swivel seat 13, and the universal ball 11, through the connecting rod 12, can drive the support plate 2 to rotate in all directions.

[0022] Figure 2 The display shows that the rotating seat cover 14 is connected to the universal rotating seat 13, constraining the rotation of the universal ball 11. The rotating seat cover 14 is placed on the upper end of the universal rotating seat 13. The lower bottom surface of the rotating seat cover 14 has a hemispherical groove that matches the hemispherical groove of the universal rotating seat 13. The universal ball 11 is placed in the two opposing hemispherical grooves of the universal rotating seat 13 and the rotating seat cover 14, and the universal ball 11 is in a rotational fit with the two hemispherical grooves. The upper end of the rotating seat cover 14 has a round hole with a diameter larger than that of the connecting rod 12. The connecting rod 12 at the upper end of the universal ball 11 is connected to the support plate 2 through the round hole. The outer periphery of the hemispherical grooves of the universal rotating seat 13 and the rotating seat cover 14 has opposing connecting screw holes. The assembly bolts 15 connect the universal rotating seat 13 and the rotating seat cover 14 into one unit through the connecting screw holes.

[0023] Figure 2 As shown, the upper end face of the universal joint connecting rod 12 has a connecting screw hole, and the bottom surface of the support plate 2 has a through hole. The connecting bolt 16 connects the support plate 2 to the connecting screw hole at the upper end of the connecting rod 12. With this connection method, after removing the support plate 2, the rotating seat cover 14 can be fitted onto the connecting rod 12, and then the rotating seat cover 14 can be connected to the universal rotating seat 13 by the assembly bolt 15. This facilitates installation and subsequent disassembly and maintenance.

[0024] Figure 1 As shown, the triangular bracket 5 consists of two square plates. The upper ends of the two square plates are welded together, and the lower ends of the two square plates are inclined to both sides to form a triangular frame. The lower ends of the two square plates of the triangular bracket 5 have connecting holes, and the fastening bolts 7 pass through the connecting holes to fasten the two square plates of the triangular bracket 5 together.

[0025] Figure 1 As shown, a top plate 6 is welded between the bottom surface of the base plate 4 and the upper surface of one side plate of the triangular bracket 5. The top plate 6 is a right trapezoid, and the right-angled side of the top plate 6 is welded to the bottom surface of the base plate 4. The inclination angle of the lower hypotenuse of the top plate 6 matches the inclination angle of the side plate of the triangular bracket 5. The lower hypotenuse of the top plate 6 is welded to the side plate of the triangular bracket 5. The top plate 6 can enhance the connection strength between the base plate 4 and the triangular bracket 5.

[0026] Figure 3 The angle of the apex of the triangular bracket 5 is the same as that of the roller bracket 8. The triangular bracket 5 is fitted onto the lower crossbeam of the roller bracket 8. There are two parallel connecting holes on the two square plates of the triangular bracket 5. Two fastening bolts 7 are inserted into the two connecting holes respectively. The two fastening bolts 7 are located below the lower crossbeam of the roller bracket 8 and are tightly connected to the lower surface of the lower crossbeam of the roller bracket 8.

[0027] The usage process of this utility model is as follows:

[0028] Fix the triangular bracket 5 to the idler roller bracket 8, insert the end of the pry bar 1 under the belt 10, with the pry bar 1 located in the long groove of the pallet 2, and use the lever principle to pry the belt 10. After there is space under the belt 10, replace the bad idler roller 9, and then loosen the pry bar 1 to remove the device.

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

[0030] The diameter of crowbar 1 is 50mm and its length is 2000mm;

[0031] The arc diameter of pallet 2 is 65mm and the length is 100mm;

[0032] The diameter of support rod 3 is 50mm and the height is 500mm;

[0033] The base plate 4 is 400mm long, 400mm wide, and 10mm thick.

[0034] The frame of the tripod bracket 5 is made of angle steel, and the square plate is 500mm long and 300mm wide.

[0035] The top plate 6 has an upper base of 200mm, a lower base of 500mm, a length of 200mm, and a thickness of 10mm.

[0036] Fastening bolt 7 is an M24*400 bolt.

Claims

1. A device for quick replacement of a belt conveyor idler, comprising a crowbar (1), characterised in that: It also has a support rod (3), a tray (2), a base plate (4), a triangular bracket (5), and a fastening bolt (7). The support rod (3) is placed vertically, and the tray (2) is installed on the upper end of the support rod (3). The tray (2) is a long groove plate with a semi-circular arc shape. The bottom surface of the tray (2) is rotatably connected to the upper end of the support rod (3). The front part of the pry bar (1) is placed in the long groove of the tray (2). The base plate (4) is a square plate placed horizontally. The lower end of the support rod (3) is welded to the plate surface of the base plate (4). The lower end of the base plate (4) is welded to the triangular bracket (5). The triangular bracket (5) is composed of two square plates. The upper ends of the two square plates are welded together. The lower ends of the two square plates are tilted to both sides to form a triangular frame. The lower ends of the two square plates of the triangular bracket (5) have connection holes. The fastening bolt (7) passes through the connection holes to fasten the lower end of the triangular bracket (5) to the roller bracket (8).

2. The device for quick replacement of the belt conveyor idler according to claim 1, characterized in that: The lower part of the tray (2) and the upper end of the support rod (3) are connected by a universal joint. The universal joint consists of a universal ball (11), a connecting rod (12), a universal rotating seat (13), a rotating seat cover (14), and assembly bolts (15). The universal ball (11) is a sphere. The lower end of the connecting rod (12) is fixedly connected to the upper end of the universal ball (11). The upper end of the connecting rod (12) is connected to the bottom surface of the tray (2). The universal rotating seat (13) is a cylinder. The universal rotating seat (13) is fixed to the upper end of the support rod (3). The upper surface of the universal rotating seat (13) has a hemispherical groove. The diameter of the hemispherical groove matches the diameter of the universal ball (11). The rotating seat cover (14) is placed on the upper surface of the universal rotating seat (13). At the end, the bottom surface of the rotating seat cover (14) has a hemispherical groove that matches the hemispherical groove of the universal rotating seat (13). The universal ball (11) is placed in the two hemispherical grooves opposite to the universal rotating seat (13) and the rotating seat cover (14). The universal ball (11) and the two hemispherical grooves are in rotational fit. The upper end of the rotating seat cover (14) has a round hole with a diameter larger than that of the connecting rod (12). The connecting rod (12) at the upper end of the universal ball (11) is connected to the support plate (2) through the round hole. The outer periphery of the hemispherical grooves of the universal rotating seat (13) and the rotating seat cover (14) has corresponding connecting screw holes. The assembly bolt (15) connects the universal rotating seat (13) and the rotating seat cover (14) into one unit through the connecting screw holes.

3. The device for quick replacement of the belt conveyor idler according to claim 1, characterized in that: The front end of the crowbar (1) is flat and polished smooth.

4. The apparatus for quick belt replacement of a conveyor idler of claim 1, wherein: A top plate (6) is welded between the bottom surface of the base plate (4) and the upper surface of one side plate of the triangular bracket (5). The top plate (6) is a right trapezoid. The upper end of the top plate (6) is welded to the bottom surface of the base plate (4), and the lower end of the top plate (6) is welded to the side plate of the triangular bracket (5).

5. The apparatus for quick belt replacement of a conveyor idler of claim 1, wherein: The apex angle of the triangular bracket (5) is consistent with the angle of the roller bracket (8). The triangular bracket (5) is fitted on the lower crossbeam of the roller bracket (8). The two square plates of the triangular bracket (5) have two parallel connecting holes respectively. Two fastening bolts (7) are inserted into the two connecting holes respectively. The two fastening bolts (7) are located below the lower crossbeam of the roller bracket (8). The two fastening bolts (7) are tightly connected to the lower surface of the lower crossbeam of the roller bracket (8).

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