CN-122009747-A - Belt conveyor heavy hammer type tensioning method based on bidirectional limiting

Abstract

A heavy hammer type tensioning method of a belt conveyor based on bidirectional limiting. At present, the common practice for this problem is to enhance lubrication and maintenance of the guide rail and rely on manual frequent inspection to observe the running state of the weight drum. The method is passive and has limited effect, can not fundamentally prevent the roller from tilting, increases maintenance cost and labor intensity, and can not completely eliminate potential safety hazards. The method comprises the following steps of fixing a connecting rod with a bracket of a belt frame through a hoop, respectively fixing channel steel at two ends of a heavy hammer box, fixing two connecting rods on one side, enabling a fixing rod to penetrate through the connecting rod and a rib plate, fixing the position of the fixing rod through nuts in threaded connection with the fixing rod, buckling a limiting plate on the fixing rod, adjusting the position of the fixing plate to enable a gap of 3-5mm to be reserved between the fixing plate and a roller, and then fixing the position of the fixing plate through lock nuts in threaded connection. The invention is used for the belt the weight is pulled up.

Inventors

• CHEN BO
• ZHOU ZHOU
• Wen Ganxiang
• WANG YUAN
• YUAN WENJUN

Assignees

• 湖南华电平江发电有限公司

Dates

Publication Date

20260512

Application Date

20260227

Claims (4)

1. 1. A heavy hammer type tensioning method of a belt conveyor based on bidirectional limiting is characterized by comprising the following steps: (1) Fixing the connecting rod and the bracket of the belt rack through the anchor ear, respectively fixing channel steel at two ends of the heavy hammer box, fixing two connecting rods at one side, then penetrating the fixing rod through the connecting rod and the rib plate, fixing the position of the fixing rod through nuts in threaded connection with the fixing rod, buckling the limiting plate on the fixing rod, and adjusting the position of the fixing plate to enable a gap of 3-5mm to be reserved between the limiting plate and the roller; (2) Then threaded connection has lock nut to fix the position of fixed plate, through the sliding fit of dead lever and floor, makes it carry out spacingly to the cylinder, makes it keep the vertical state of weight cylinder, ensures tension equilibrium, is favorable to belt centering operation, has reduced the belt off tracking, the chain trouble risk such as vibration that cause because of the cylinder slope, has promoted entire conveying system's operational reliability and security, through setting up limiting plate and stopper, can carry out spacingly to the cylinder simultaneously, prevents the cylinder skew.
2. 2. The heavy hammer tensioning method of the belt conveyor based on the bidirectional limit of claim 1, wherein two ends of the heavy hammer box are respectively fixed with channel steel, two channel steel are connected with a roller through a bearing seat, a bracket of a belt rack is connected with a connecting rod through a hoop, the end part of the connecting rod is fixed with a fixing rod which is vertically arranged, and the fixing rod is in sliding fit with a rib plate on the channel steel; the fixed rod is also fixed with a limiting plate, a limiting block is fixed at the bottom of the limiting plate, and the limiting block and the roller are concentrically arranged.
3. 3. The heavy hammer tensioning method of the belt conveyor based on the bidirectional limit of claim 2, wherein the hoop comprises a fixed beam plate and a movable beam plate, the fixed beam plate is fixed with the connecting rod, and the movable beam plate is buckled on the bracket and is connected with the fixed beam plate through a bolt.
4. 4. The belt conveyor weight tensioning method based on bidirectional limiting according to claim 3, wherein the fixing rod is a cylindrical rod, and threaded sections are arranged at two ends of the fixing rod.

Description

Belt conveyor heavy hammer type tensioning method based on bidirectional limiting Technical Field The invention relates to a heavy hammer type tensioning method of a belt conveyor based on bidirectional limiting. Background In a material conveying system such as a coal conveying belt conveyor, a heavy hammer type tensioning device is a common tensioning mode. The heavy hammer roller is easy to incline during running, especially when the belt is deviated or started, due to uneven stress on two sides or different friction force of the lifting guide rail (or called a slideway). The inclination of the roller can accelerate the abrasion and damage of bearings at two ends of the roller, reduce the service life of equipment, and also possibly cause potential safety hazards such as belt deviation aggravation, equipment vibration and the like, and even cause shutdown accidents in serious cases. At present, the common practice for this problem is to enhance lubrication and maintenance of the guide rail and rely on manual frequent inspection to observe the running state of the weight drum. The method is passive and has limited effect, can not fundamentally prevent the roller from tilting, increases maintenance cost and labor intensity, and can not completely eliminate potential safety hazards. Disclosure of Invention The invention aims to make up the defects of the prior art and provides a heavy hammer type tensioning method of a belt conveyor based on bidirectional limiting. The above object is achieved by the following technical scheme: a heavy hammer type tensioning method of a belt conveyor based on bidirectional limiting comprises the following steps: (1) Fixing the connecting rod and the bracket of the belt rack through the anchor ear, respectively fixing channel steel at two ends of the heavy hammer box, fixing two connecting rods at one side, then penetrating the fixing rod through the connecting rod and the rib plate, fixing the position of the fixing rod through nuts in threaded connection with the fixing rod, buckling the limiting plate on the fixing rod, and adjusting the position of the fixing plate to enable a gap of 3-5mm to be reserved between the limiting plate and the roller; (2) Then threaded connection has lock nut to fix the position of fixed plate, through the sliding fit of dead lever and floor, makes it carry out spacingly to the cylinder, makes it keep the vertical state of weight cylinder, ensures tension equilibrium, is favorable to belt centering operation, has reduced the belt off tracking, the chain trouble risk such as vibration that cause because of the cylinder slope, has promoted entire conveying system's operational reliability and security, through setting up limiting plate and stopper, can carry out spacingly to the cylinder simultaneously, prevents the cylinder skew. According to the heavy hammer type tensioning method of the belt conveyor based on the bidirectional limiting, channel steel is respectively fixed at two ends of the heavy hammer box, two channel steel are connected with a roller through a bearing seat, a support of a belt rack is connected with a connecting rod through a hoop, the end part of the connecting rod is fixed with a fixing rod which is vertically arranged, and the fixing rod is in sliding fit with a rib plate on the channel steel; the fixed rod is also fixed with a limiting plate, a limiting block is fixed at the bottom of the limiting plate, and the limiting block and the roller are concentrically arranged. The heavy hammer type tensioning method of the belt conveyor based on the bidirectional limiting comprises a fixed beam plate and a movable beam plate, wherein the fixed beam plate is fixed with a connecting rod, and the movable beam plate is buckled on the support and is connected with the fixed beam plate through bolts. According to the belt conveyor weight tensioning method based on bidirectional limiting, the fixed rod is a cylindrical rod, and threaded sections are arranged at two ends of the fixed rod. Advantageous effects 1. The invention can effectively restrict the deflection of the heavy hammer roller in the horizontal direction and prevent the heavy hammer roller from tilting due to uneven stress, thereby protecting the bearing, prolonging the service life of the equipment and improving the running safety and stability of the whole belt conveying system. 2. According to the invention, the connecting rod and the fixing rod are arranged, so that the roller can be limited, the vertical state of the heavy hammer roller is kept, the tension balance is ensured, the belt centering operation is facilitated, the risk of chain faults such as belt deviation and vibration caused by the inclination of the roller is reduced, and the operation reliability and the safety of the whole conveying system are improved. 3. According to the invention, the limiting plate and the limiting block are arranged, so that the roller can be limited, and the roller is preve