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Several problems to be considered in safety inspection of bucket elevator
2022-01-10
Bucket elevator is a common lifting device. Like many common materials, bucket elevator can be used for vertical lifting. In production, the bucket elevator may encounter many problems that we need to consider when running, but in order to carry out production, it is naturally necessary to check the bucket elevator. So, what are the specific detection methods? Speed test: display the running speed diagram of the hoist in real time, measure the lifting diagram, given speed diagram, low-frequency drag or braking signal diagram, and automatically calculate the high running speed, main acceleration, main deceleration, running time, etc. and equivalent power. The speed test can be carried out by using the signal of speed sensor or speed measuring motor. System test: brake wheel or brake disc brake shoe clearance test; Radial runout test of brake wheel and lateral runout test of brake disc; Idle time test; Test of initial braking speed, braking deceleration, braking time and braking distance during braking; Test of braking force and braking torque. Hydraulic system test: secondary braking performance test; Test of oil pressure characteristic curve, large oil pressure, sticking brake oil pressure and residual pressure during hoist operation; Measurement of adjustable braking current and hydraulic tracking characteristics during braking.
How to reduce the working accident probability of bucket elevator?
2022-01-10
Nowadays, bucket elevator is used in many factories. The materials needed for factory production are transported by bucket elevator, which is very efficient. There is no doubt that the bucket elevator can increase the actual output of the factory. As we all know, improper operation of bucket elevator may cause accidents, which is a very dangerous situation. How to use bucket elevator to reduce the working accident probability of bucket elevator? Most of them are used in modern large-scale factories. Materials must always be transported according to requirements, which is of great significance to achieve high and stable production. Operating procedures must be strictly observed. The operator is required to maintain, inspect and adjust the hoist as required. Only in this way can the machine work normally. The hoist in operation shall often monitor the main parameters, temperature, current, speed and vibration reflecting the performance of the equipment to understand the operation of the equipment. Once any abnormality is found, the cause shall be found in time. Careful operation and maintenance can reduce accidents and prolong service life, and the equipment will play a greater role. Precautions in the use of bucket elevator 1. No load driving. Before shutdown, drain all materials in the winch first, and then close it in case of power failure. 2. The crane cannot be reversed. If it reverses, the chain derailment will occur; 3. The material shall be poured evenly, and the material quantity shall not exceed the bearing capacity of the hoist, otherwise it is easy to cause material blockage and failure. 5. If the hoist is used for a long time, it needs regular maintenance and lubricating oil supplement; If the chain and hopper are worn, they need to be replaced in time!
Selection method of transmission mode of bucket elevator
2022-01-10
For the bucket elevator, the transmission device is undoubtedly one of the important core components of the machine, which plays a vital role in the normal operation of the whole bucket elevator. Therefore, choosing the transmission mode of bucket elevator will directly determine the service efficiency of bucket elevator. The following small series tells you the commonly used transmission methods. For example, the bucket elevator can adopt the transmission mode of parallel gear reducer and two-stage chain transmission, which has the advantages of low cost, but the disadvantages are also obvious, that is, there are many transmission links, complex structure, low efficiency, heavy maintenance workload and high operation cost, so it is not recommended to use. Of course, for low-speed bucket elevator with small lifting capacity and height, reduction motor and chain drive can also be used as the transmission mode of bucket elevator. Although this method has compact structure and low cost, it is impossible to add a slow drive device, and the stop can only be added to the head drive shaft. How about the transmission mode of hollow shaft connection of bucket elevator? Because the hydraulic coupling is used between the drive motor and the input shaft of the reducer, it has compact structure and stable start. When overloaded, the hydraulic coupling slips and plays a protective role. However, it needs to be equipped with overspeed drive device and check device, which is mainly used for bucket elevator. It is an important component with large lifting capacity and high height. Some bucket elevators are also connected through couplings. The disadvantage of this transmission mode is that it occupies a large axial space and requires high installation accuracy. In addition, because the output shaft of the reducer adopts a coupling, the speed is low and the specification is large, and the corresponding cost increases.
Jiangsu liudao Heavy Industry Co., Ltd
Office address: room 901-903, block L, Zhengda Himalaya, Yuhuatai District, Nanjing, Jiangsu Province
Factory address: No. 16, Huashan Road, Gaochun Economic Development Zone, Nanjing