Belt winding device and winding method

With the continuous improvement of the degree of mechanization of coal mine and the continuous extension of underground coal mining face, the use of belt conveyor is more and more frequent.BeltAfter the roll is received back to the ground, it is all manual roll row, slow recovery, high labor intensity of workers, and the length of each roll is about 50 meters, which has the disadvantages of time-consuming and laborious, low work efficiency and irregular winding. The problem of shortage of personnel and large amount of labor in the equipment group is quite prominent. It is a time-consuming and laborious work for coal miners to install and remove belts, and it is also a headache to stack and sort out old belts on the well. The coal mine ground belt is mostly unfolded and stacked, disorderly, and is easy to age when exposed to the sun.

In order to solve the shortcomings in the existing technology, technicians provide a belt winding device and winding method, with the advantages of large winding force, speed control, time-saving and labor-saving, can greatly improve the labor efficiency of winding work, reduce the labor intensity of workers. The technical solution is a belt winding device, including a frame, one end of the frame is provided with a drive motor and a reel device, the other end of the frame is provided with two redirecting drive rollers, and the lower part of the frame is provided with a drive roller, The upper platform of the frame is provided with an adjustable belt pressing frame and a cutting blade; the two ends of the redirection drive roller and the rack at both ends of the drive roller are provided with limit rollers; the reel device includes two fixed discs and three roller columns detachably arranged between the two fixed discs; two fixed plates are fixed at both ends of the roller column, and the fixed plates and the fixed plates are fixed by bolts; the reel device passes The shaft hole at one end of the fixed disk is connected with the frame, and the shaft hole at the other end is connected with the drive motor; the upper platform of the frame is symmetrically provided with two belt pressing frames, and the position of the belt pressing frame is adjustable; the two blades are symmetrically installed on the rack platform, and the blades are detachable; the cutting blade is located in front of the belt press frame. The drive motor is equipped with a reducer, the adjustable pressure belt frame is angle steel, the upper part of the frame is also equipped with 1-2 drive rollers, and the fixed plate is arc-shaped. The belt winding method includes the following steps: under the action of the driving motor, the belt is wound on the reel device to form a winding method and a disassembly method of the belt roller; and the belt is cut during the belt winding process. Winding method and disassembly method: the belt to be wound first enters from the driving roller at the lower part of the frame, the position and driving direction of the belt are limited by the limit roller, the belt is transferred from the upper part of the frame to the drum device through two redirecting driving rollers, so that the belt head and the drum device are fixed; Then start the driving motor, the driving motor drives the drum device to rotate, the drum device starts to rotate, and the winding work, loosen and remove the bolts connecting the fixing plate and the fixing plate of the roller device, take out the tape roll, separate and pull out the three rollers in the tape roll, and get the wound tape roll. The winding speed of the belt during the winding process can be adjusted by the speed reducer of the drive motor. The belt cutting process in the belt winding process includes the following steps: according to the width required for cutting the belt, install a cutting blade and a belt pressing frame on the upper platform of the frame, so that the belt pressing frame is located in front of the cutter, and the left and right belt pressing frames Press the conveyed belt, and the cutting blade automatically cuts the belt to the required width; fix the head with a reel device, start the drive motor, and drive the belt to convey and wind. When the belt passes through the cutting blade, it is wound on the drum device at the same time.

Compared with the existing technology, the above.BeltThe belt winding device has the following beneficial effects: the belt winding device and method have the advantages of large winding force, controllable speed, time-saving and labor-saving, convenient and reliable operation, etc., and can significantly improve the working efficiency of the winding; the belt winding device and method are simple to operate, Convenient and fast; mechanized operations replace manual operations, reduce the labor intensity of workers, and have been unanimously recognized and praised by workers involved in this work.

Cut three samples with a length of 250 mm from one PJ V-ribbed belt, and mark a marking line with a spacing of 100mm at the middle position of the PJ V-ribbed belt. When more than three samples cannot be taken from one PJ V-ribbed belt, samples can be cut from the same batch of PJ V-ribbed belt, but must be indicated in the report. 7.4.2 High temperature resistance test method
Place the sample at 100 ℃ ± 2 ℃ for 96 h ± 1 h and then take it out. After standing at laboratory temperature for more than 2h, bend it along a cylinder with a diameter of 20 mm at a contact angle of at least 90 °.