2013年9月17日星期二

Conveyor belt installation and maintenance

First, the startup and shutdown
Conveyor generally be started in an unloaded condition. By installing several units in the conveyor belt should be used when you can lock the starter to the control room through a certain order to start and stop. In addition, in order to prevent incidents, each conveyor should be set in place to start or stop buttons can be individually stopped Renyiyitai. In order to prevent the conveyor belt for some reason is longitudinal tear, when the conveyor is longer than 30m, the length along the conveyor, should be spaced a certain distance (e.g. 25-30m) to install a stop button.
Second, the installation of belt conveyor
Belt conveyor installation is typically carried out according to the following stages.
1 Install Belt Conveyor rack rack rack installation is started from scratch, and then install the sections sequentially intermediate frame, the final installation of the tailstock. A mounting rack, first to the entire length of the conveyor centerline pulling, due to keep the conveyor belt center line in a straight line is an important condition for the normal operation, so the installation of the rack sections, must be aligned with the centerline, but also put on airs leveling the rack on the centerline of the allowable error per meter captain of ± 0.1mm. However, the entire length of the conveyor frame centered on the error should not exceed 35mm. When all the single install and pinpoint can then be connected to each block.
2 Install drive unit mounted drives, you must pay attention to the belt conveyor belt conveyor drive shaft and perpendicular to the centerline, the width of the drive roller conveyor centerline central and coincides with the axis of the shaft line reducer parallel. Also, all shafts and rollers should be leveling. Axis horizontal error, according to the width of the conveyor, allowing the range of 0.5-1.5mm. Driving means installed at the same time, the tail wheel, etc. can be mounted tensioning device, the tensioning device of the axis of the drum, should be perpendicular to the centerline of the belt conveyor.
3 Install the rack rollers, gear and tensioning device after installation, you can install the upper and lower idler roller frame, so that the belt has a slow change to the curved arc, bending roll cage segment prop prop pitch as normal roller frame pitch 1/2 to 1/3. Idler installation, you should make it flexible rotary light.
4 belt conveyor belt in order to ensure the final pinpoint idlers and rollers are always in the center line of the operation, installation rollers, racks and rollers must meet the following requirements:
1) All rollers must line up parallel to each other and keep the horizontal level.
2) All the rollers are arranged in rows parallel to each other.
3) frame supporting structure must be linear, but keeping the horizontal level. To this end, the drive roller and roller frame after installation, should the centerline and the horizontal conveyor for final alignment.
5 is then fixed on the basis of the rack or floor. After a fixed belt conveyors can be fitted to the loading and unloading devices.
6 hanged hanged conveyor belt, the first shop in the strip conveyor idlers on load segments, Wai hold after the drive roller, and then deposited in the heavy segment on roller. Let hanging strips of use 0.5-1.5t hand winch. Connecting strip under tension when the roller moves the tensioning device shall limit position of the car and screw tensioning device To pull the gear shift direction; while picking up tight vertical move to the top of the drum unit to make . In previous belt tension should be installed reducer and motor, tilt conveyor confidential installed brakes.
7 belt conveyor installation, the need for idling test machine. In the idling test machine, pay attention to whether the running belt deviation phenomenon, driven part of the operating temperature, roller during operation activities, cleaning device and the guide plate in contact with the belt surface rigor, etc., while make the necessary adjustments, the components are normal after the operation can be performed with a load test machine. If a spiral tensioning device, with load test machine, but also once again its tightness adjustment.
Third, the maintenance of belt conveyors
To ensure reliable operation of belt conveyors, the most important is to detect and eliminate possible failures. This operation must always observe the work of transport, such as abnormal should timely manner. Mechanical workers should be regular inspections and check for any situations requiring attention or parts, this is very important. For example, a roller, does not seem very important, but a high-speed conveyor belt worn materials may soon put its shell worn out, the emergence of a blade, the blade could seriously damage an expensive belt. Workers trained or experienced staff to detect impending accident and take preventive measures. Belt conveyor belt conveyor costs in the entire account for a large proportion. In order to reduce the cost of replacement and repair belt, must pay attention to the operator and maintenance personnel for the operation and maintenance of conveyor knowledge training.

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