Belt conveyor heavy hammer type tensioning method based on bidirectional limiting

Abstract

The invention discloses a belt conveyor heavy hammer type tensioning method based on bidirectional limiting. At present, the general method for solving the problem is to strengthen the lubrication and maintenance of the guide rail and observe the running state of the heavy hammer roller through frequent manual inspection. The method is passive and limited in effect, the roller cannot be fundamentally prevented from inclining, the maintenance cost and the labor intensity are increased, and potential safety hazards cannot be completely eliminated. The method comprises the following steps that connecting rods and a support of a belt rack are fixed through hoops, channel steel is fixed to the two ends of a heavy hammer box respectively, two connecting rods can be fixed to one side of the heavy hammer box, then fixing rods penetrate through the connecting rods and rib plates, nuts are connected to the fixing rods in a threaded mode, and the positions of the fixing rods are fixed; a limiting plate is buckled on the fixing rod, and the position of the fixing plate is adjusted so that a gap of 3-5 mm can be reserved between the fixing plate and the roller; and then a locking nut is in threaded connection to fix the position of the fixing plate. The heavy hammer type tensioning device is used for heavy hammer type tensioning of the belt conveyor.

Description

Technical Field

[0001] This invention relates to a belt conveyor with a counterweight-based tensioning method based on bidirectional limiting. Background Technology

[0002] In material conveying systems such as coal conveyor belts, counterweight tensioning devices are a commonly used tensioning method. During operation, especially during belt misalignment or startup, the counterweight drum is prone to tilting due to uneven force on both sides or different frictional forces on the lifting guide rails (or slides). This tilting not only accelerates the wear and damage of the bearings at both ends, reducing equipment lifespan, but can also lead to further belt misalignment, equipment vibration, and other safety hazards, and in severe cases, even machine shutdown.

[0003] Currently, the common approach to this problem is to strengthen the lubrication and maintenance of the guide rails and rely on frequent manual inspections to observe the operating status of the counterweight roller. This method is passive and has limited effectiveness, failing to fundamentally prevent roller tilting. It increases maintenance costs and labor intensity, and cannot completely eliminate safety hazards. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a belt conveyor counterweight tensioning method based on bidirectional limiting.

[0005] The above objectives are achieved through the following technical solutions: A counterweight-based tensioning method for belt conveyors based on bidirectional limiting, the method comprising the following steps: (1) Fix the connecting rod to the bracket of the belt conveyor frame by clamping. Channel steel is fixed at both ends of the counterweight box. Two connecting rods can be fixed on one side. Then, the fixing rod passes through the connecting rod and the rib plate, and a nut is threaded on the fixing rod to fix the position of the fixing rod. The limiting plate is fastened on the fixing rod and the position of the fixing plate is adjusted so that there is a gap of 3-5mm between it and the roller. (2) Then the threaded connection with the locking nut fixes the position of the fixing plate. Through the sliding cooperation between the fixing rod and the rib plate, it limits the roller, keeps the weight roller vertical, ensures tension balance, facilitates belt alignment, reduces the risk of chain failures such as belt deviation and vibration caused by roller tilt, and improves the reliability and safety of the entire conveying system. At the same time, by setting the limiting plate and limiting block, the roller can be limited to prevent roller deviation.

[0006] The aforementioned belt conveyor counterweight tensioning method based on bidirectional limiting is described in which channel steel is fixed at both ends of the counterweight box, the two channel steels are connected to the roller through bearing seats, the belt conveyor frame bracket and connecting rod are connected by clamps, the end of the connecting rod is fixed to a vertically arranged fixed rod, and the fixed rod is slidably engaged with the rib plate on the channel steel. The fixing rod is also fixed to a limiting plate, and a limiting block is fixed to the bottom of the limiting plate. The limiting block is arranged concentrically with the roller.

[0007] The aforementioned belt conveyor counterweight tensioning method based on bidirectional limiting includes a clamp comprising a fixed beam plate and a movable beam plate. The fixed beam plate is fixed to a connecting rod, and the movable beam plate is fastened to the bracket and connected to the fixed beam plate by bolts.

[0008] The aforementioned belt conveyor counterweight tensioning method based on bidirectional limiting uses a cylindrical rod with threaded sections at both ends as the fixing rod is a cylindrical rod. Beneficial effects

[0009] 1. This invention can effectively constrain the horizontal offset of the counterweight roller, prevent it from tilting due to uneven force, thereby protecting the bearing, extending the equipment life, and improving the safety and stability of the entire belt conveyor system.

[0010] 2. By setting up connecting rods and fixing rods, the present invention can limit the roller, keeping it in a vertical state, ensuring balanced tension, which is beneficial for belt alignment and reduces the risk of chain failures such as belt misalignment and vibration caused by roller tilting, thus improving the operational reliability and safety of the entire conveyor system.

[0011] 3. By setting a limiting plate and a limiting block, the present invention can limit the roller and prevent the roller from deviating. Attached Figure Description

[0012] Appendix Figure 1 This is a perspective view of the present invention; Appendix Figure 2 It is attached Figure 1 Enlarged view of part A; Appendix Figure 3 It is attached Figure 1 Enlarged view of part B; Appendix Figure 4 This is a side view of the present invention; Appendix Figure 5 It is attached Figure 4 A cross-sectional view of the CC section; In the diagram: 1. Belt; 2. Roller; 3. Counterweight box; 4. Bracket; 5. Channel steel; 6. Fixing rod; 7. Fixing beam plate; 8. Connecting rod; 9. Locking nut; 10. Rib plate; 11. Limiting plate; 12. Limiting block; 13. Bearing seat; 14. Belt conveyor frame; 15. Movable beam plate. Detailed Implementation

[0013] Reference Figures 1-5 A method for tensioning a belt conveyor using a counterweight based on bidirectional limiting, comprising the following steps: (1) Fix the connecting rod to the bracket of the belt conveyor frame by clamping. Channel steel is fixed at both ends of the counterweight box. Two connecting rods can be fixed on one side. Then, the fixing rod passes through the connecting rod and the rib plate, and a nut is threaded on the fixing rod to fix the position of the fixing rod. The limiting plate is fastened on the fixing rod and the position of the fixing plate is adjusted so that there is a gap of 3-5mm between it and the roller. (2) Then the threaded connection with the locking nut fixes the position of the fixing plate. Through the sliding cooperation between the fixing rod and the rib plate, it limits the roller, keeps the weight roller vertical, ensures tension balance, facilitates belt alignment, reduces the risk of chain failures such as belt deviation and vibration caused by roller tilt, and improves the reliability and safety of the entire conveying system. At the same time, by setting the limiting plate and limiting block, the roller can be limited to prevent roller deviation.

[0014] A belt conveyor with a counterweight tensioning method based on bidirectional limiting includes a counterweight box 3, with channel steel 5 fixed at both ends of the counterweight box. The counterweight box is welded to the channel steel, and a roller pulls the belt. The two channel steels are connected to the roller 2 through bearing seats 13. The support 4 of the belt conveyor frame 14 is connected to the connecting rod 8 through a clamp. The end of the connecting rod is fixed to a vertically arranged fixed rod 6, and the fixed rod slides with the rib plate 10 on the channel steel. The fixing rod is also fixed to the limiting plate 11. The upper and lower ends of the fixing rod have threaded sections. The limiting plate passes through the fixing rod, and two locking nuts are threaded on the fixing rod to clamp the limiting plate. The bottom of the limiting plate is fixed with a limiting block 12. The limiting block is arranged concentrically with the roller. The bottom of the limiting block is arc-shaped, and its curvature is consistent with the curvature of the roller, so that there is a certain gap between them.

[0015] The aforementioned belt conveyor counterweight tensioning method based on bidirectional limiting includes a clamp comprising a fixed beam plate 7 and a movable beam plate 15. The fixed beam plate is fixed to a connecting rod 8, and the movable beam plate is fastened to the bracket and connected to the fixed beam plate by bolts.

[0016] The aforementioned belt conveyor counterweight tensioning method based on bidirectional limiting uses a cylindrical rod with threaded sections at both ends as the fixing rod is a cylindrical rod.

[0017] Installation method: In use, first fix the connecting rod to the bracket of the belt conveyor frame with clamps. Two connecting rods can be fixed on one side. Then, pass the fixing rod through the connecting rod and the rib plate, and fix the position of the fixing rod by threading a nut on the fixing rod. Snap the limiting plate on the fixing rod and adjust the position of the fixing plate so that there is a 3-5mm gap between it and the roller. Then, fix the position of the fixing plate by threading a locking nut. Through the sliding cooperation between the fixing rod and the rib plate, the roller is limited, keeping the counterweight roller vertical, ensuring balanced tension, which is conducive to belt alignment and reduces the risk of chain failures such as belt deviation and vibration caused by roller tilting. This improves the reliability and safety of the entire conveyor system. At the same time, by setting the limiting plate and limiting block, the roller can be limited to prevent roller deviation.

Claims

1. A method for tensioning a belt conveyor using a counterweight based on bidirectional limiting, characterized in that: The method includes the following steps: (1) Fix the connecting rod to the bracket of the belt conveyor frame by clamping. Channel steel is fixed at both ends of the counterweight box. Two connecting rods can be fixed on one side. Then, the fixing rod passes through the connecting rod and the rib plate, and a nut is threaded on the fixing rod to fix the position of the fixing rod. The limiting plate is fastened on the fixing rod and the position of the fixing plate is adjusted so that there is a gap of 3-5mm between it and the roller. (2) Then the threaded connection with the locking nut fixes the position of the fixing plate. Through the sliding cooperation between the fixing rod and the rib plate, it limits the roller, keeps the weight roller vertical, ensures tension balance, facilitates belt alignment, reduces the risk of chain failures such as belt deviation and vibration caused by roller tilt, and improves the reliability and safety of the entire conveying system. At the same time, by setting the limiting plate and limiting block, the roller can be limited to prevent roller deviation.

2. The belt conveyor counterweight tensioning method based on bidirectional limiting as described in claim 1, characterized in that: The two ends of the counterweight box are respectively fixed with channel steel, and the two channel steels are connected to the roller through bearing seats. The support of the belt conveyor frame is connected to the connecting rod through a clamp. The end of the connecting rod is fixed to a vertically arranged fixed rod, and the fixed rod is slidably engaged with the rib plate on the channel steel. The fixing rod is also fixed to a limiting plate, and a limiting block is fixed to the bottom of the limiting plate. The limiting block is arranged concentrically with the roller.

3. The belt conveyor counterweight tensioning method based on bidirectional limiting as described in claim 2, characterized in that: The clamp includes a fixed beam plate and a movable beam plate. The fixed beam plate is fixed to the connecting rod, and the movable beam plate is fastened to the bracket and connected to the fixed beam plate by bolts.

4. The belt conveyor counterweight tensioning method based on bidirectional limiting as described in claim 3, characterized in that: The fixing rod is a cylindrical rod with threaded sections at both ends.

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