Belt conveyor installation and maintenance

Second, the belt conveyor maintenance In order to ensure the reliable operation of the belt conveyor, Zui is mainly to timely discover and eliminate possible failures. To this end, the operator must observe the working condition of the transport machine at any time. If abnormalities are found, they should be dealt with in time. It is important that mechanical workers regularly inspect and inspect any conditions or components that require attention. For example, a roller does not seem to be very important, but a high-speed conveyor belt that transports abraded material can quickly wear through its outer casing, creating a blade that can severely damage an expensive conveyor belt. Trained workers or experienced staff can detect an impending accident in time and prevent it from happening. Conveyor belts for belt conveyors account for a significant proportion of the total conveyor cost. In order to reduce the cost of replacing and repairing the conveyor belt, it is necessary to pay attention to the training of operators and maintenance personnel on the operation and maintenance knowledge of the conveyor belt. Table l-40 lists a large number of causes and solutions for operational problems with conveyor belts. Causes and elimination of belt conveyor failure

Third, the installation of the belt conveyor belt conveyor is generally carried out in the following stages.

1) The installation of the rack frame of the belt conveyor starts from the head frame, and then the intermediate frames of each section are installed in sequence, and the tailstock is installed after the Zui. Before installing the rack, first pull the center line over the entire length of the conveyor. Since keeping the center line of the conveyor on the straight line is an important condition for the normal operation of the conveyor belt, it is necessary to install each section of the rack. Align the center line, and also set the shelf leveling. The tolerance of the frame to the center line is ±0.1mm per meter. However, the error on the center of the rack shall not exceed 35 mm over the entire length of the conveyor. Once all the blocks have been installed and aligned, the blocks can be connected.

2) When installing the drive unit, when installing the drive unit, care must be taken to make the drive shaft of the belt conveyor perpendicular to the center line of the belt conveyor, so that the center of the width of the drive roller coincides with the center line of the conveyor, the axis of the reducer and the drive shaft. parallel. At the same time, all shafts and rollers should be leveled. The horizontal error of the shaft is allowed to be in the range of 0.5 to 1.5 mm depending on the width of the conveyor. At the same time as the driving device is installed, a tensioning device such as a tail wheel can be installed, and the drum axis of the tensioning device should be perpendicular to the center line of the belt conveyor.

3) Installation roller After the frame, transmission and tensioning device are installed, the roller frame of the upper and lower rollers can be installed, so that the conveyor belt has a slowly changing arc, and the spacing of the roller brackets of the bending segment is normal. The roller frame spacing is 1/2 to 1/3. After the roller is installed, it should be flexible and light.

4) After the belt conveyor is positioned, ensure that the conveyor belt always runs on the center line of the rollers and rollers. When installing the rollers, racks and rollers,

The following requirements must be met:

(1) All rollers must be lined up, parallel to each other, and maintained horizontally.
(2) All the rollers are arranged in rows and parallel to each other.
(3) The support structure frame must be straight and maintain a horizontal level. For this reason, after the drive roller and the roller frame are installed, the center line and the level of the conveyor should be corrected.
4) Then secure the rack to the foundation or floor. After the belt conveyor is fixed, the feeding and unloading devices can be installed.
5) When hanging the conveyor belt to hang the conveyor belt, firstly spread the conveyor belt strip on the idler roller, and then hold the driving roller, then apply it on the roller of the heavy-duty section. Hanging the strip can use a 0.5-1.5t hand winch. When tightening the strap for connection, the roller of the tensioning device should be moved to the extreme position, and the trolley and the screw tensioner should be pulled toward the transmission; and the vertical clamping device should move the roller above the Zui . Before tightening the conveyor belt, the gear unit and the motor should be installed, and the tilting conveyor should be equipped with the brake device. After the belt conveyor is installed, an idle test machine is required.

In the idling test machine, attention should be paid to the presence or absence of deviation during the operation of the conveyor belt, the operating temperature of the driving part, the movement during the operation of the roller, the tightness of the cleaning device and the contact surface of the guide plate and the conveyor belt, etc. Make necessary adjustments, and all components are normal before the test can be run with load. If a screw-type tensioning device is used, the tightening degree should be adjusted once again when the test machine is operated with a load.

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