The use of bucket elevators attention

In order to better enhance the life of the machine , reduce maintenance costs and improve the use of personnel safety factor , bucket elevator is used to note:
1 , the operator must comply with the "no -load starting , no-load stop " principle. That is the first boot, to be operating normally , give the material ; parking in front of the material inside the machine should be emptied .
2, the work , the feed should be uniform discharge pipe should be smooth in order to avoid congestion. If the issuer blockage, should immediately stop feeding and stop, pull the base flapper , remove the blockage . Note that this time can not directly hand into his base .
3, the normal working hours , the hopper should be in the barrel with an intermediate position , if there is deviation phenomenon or bucket belt is too loose and cause friction collision hopper and barrel , it should promptly be adjusted through tensioning device .
4 , to prevent large foreign matter into the base, so as not to bash hopper, Bucket Elevator affect normal operation . No delivery by the beginning of cleanup materials, feed inlet mesh grilles should be added to prevent the rice straw , wheat straw , rope and other fibrous impurities into the wound caused by blockage base .
5, such as sudden downtime should be first base material accumulated in the discharge and then boot .
    6 , should be checked regularly to enhance the tension level with hopper , hopper and the hopper is firmly connected with , if found loose, fall off , hopper skew and breakage , should be promptly repaired or replaced in order to avoid more serious consequences .

The use of bucket elevator maintenance considerations

1, Bucket Elevator should be empty load driving. So every time before shutdown drained all the material inside the hopper, and then stop.

2, can not be reversed. Rewind chain derailment phenomenon that is likely to occur, excluding derailment failure is very troublesome.

3, uniform feeding. Sudden increase in the volume of feed ban. Feeding amount can not exceed the hoist transmission capacity. Or likely to cause serious bottom material buildup occurs when "boring car" accident.

4, in a timely manner appropriate to add oil.

5, chains and hopper badly worn or damaged should be replaced.

Bucket elevator structural form

Bucket Elevator general structure can be divided into three parts: for the head, including the drive, the drive wheel, wheels, and the head discharge port; was barrel, including traction and central chassis and other components; under the base , includes a lower housing, feed hopper, tensioners and tail wheel.
Bucket head machine head by the head casing and drive, drive wheels and other components. Drive means includes a motor and transmission devices, transmission wheel drive pulley is generally (traction components of conveyor belts) or sprocket (lead member of the chain), the drive is connected to the drive wheels, so that bucket elevator gain momentum and drive its operation . Mostly gear deceleration device, usually the first stage with V-belt drive or chain drive, the second stage with reducer and fluid couplings. Should be based on the shape of the head casing material thrown from the track be designed to ensure that the material discharged from the hopper into the smooth discharge groove side of the housing should be open viewing window to observe the discharge conditions.

Bucket elevator installation requirements analysis

(1) bucket elevator lower section of the support surface, we must ensure is located in the base of the horizontal plane.
(2) the bucket elevator shaft and lower upper tensioning shaft shall be within the same vertical plane, and the two should be parallel to the horizontal axis line.
(3) intermediate housing flange connections, may not have a significant dislocation. Flanges can pad into asbestos pad or waterproof canvas to ensure the seal.
(4) bucket elevator machine lower section, the upper section of the intermediate housing and in the same vertical line centrelines, the vertical deviation of the length of the upper part of 1cm allowed to exceed 1mm, the cumulative total height deviation not exceeding 8mm .
(5) the traction member hopper should be positioned correctly and securely tightened. In operation, there should be no deflection and collision case phenomenon.
(6) Bucket Elevator deflection plates installed, must comply with the requirements of the drawings.
(7) After adjusting screw tension device should make the traction member having a uniform required for normal operation of the tensioning force. In order that there is sufficient tension in operation stroke to be less than the rest of the tensioning stroke of 50% of the full stroke
(8) the axis of the high speed shaft of the gear unit and the motor axis to be parallel to each other in the same horizontal plane; slow axis and the axis of the drive shaft axis of the bucket, to be on the same horizontal line, the maximum offset is not parallel more than 0.2mm, the maximum angle between the axis must not exceed 40o.
(9) bucket elevator lifting equipment should be installed, from the weight of not less than 2t. Crane rail base and shaft centerline distance is generally 22.2m. For D160, D250 bucket elevator to take 2m; For D350, D450, HL300 \ HL400 bucket elevator to take 2.2m.