The tensioning device adopts the screw tension type
The tensioning support adopts a section steel and bolt connection structure, which has a beautiful appearance and is easy to assemble and disassemble. For heavy and super heavy tensioning devices, add a set of springs to cushion and absorb vibration. In addition, there are the following two features: (1) The screw of the tensioning device of the medium and light plate feeder is located above the sliding seat and placed under the inverted equilateral angle steel. The screw part can not be polluted and damaged; The tensioning device for super heavy products, the screw passes through the center of the sliding seat. (2) The tensioning device is divided into two kinds of structure, standard type and heavy-duty, and it is serialized and generalized with the lower tensioning device of the bucket elevator.
The head and tail bearings mostly use rolling bearings
The head bearing seat is not horizontally supported on the frame, but four bolts are used to vertically connect the bearing seat to the frame. In this way, on the one hand, the force of the bearing seat is consistent with the direction of the working pulling force, and the force condition of the bearing seat and the connecting bolt is improved, and on the other hand, the space size is reduced.
Use combined sprocket
The material of the drive sprocket wheel is cast iron or steel, and the rim is made of high wear-resistant hardened steel with a replaceable tooth structure; the gearless rim of the tension sprocket is a combined type and can be replaced. This can reduce a lot of maintenance and reduce maintenance costs. In addition, the interchangeable gearless rim can ensure the correct and constant contact between the chain and the sprocket, and prevent the tooth surface from being glued.
Support roller
The support roller of the medium and light plate feeder is an external type, which is separated from the traction roller, and has the following advantages: (1) It is convenient to set up the guide rail trough. (2) Reduce the wear of the traction roller. (3) Easy to manufacture. For heavy-duty and super-heavy plate feeders, fixed supporting rollers are set on the frame. The lubrication of the rollers and the head and tail bearing seats adopts a centralized oil supply method to ensure the timing and comprehensive lubrication.
Hydraulic coupling
A hydraulic coupling is installed between the drive motor and the reducer, which can ensure the smooth start of the plate feeder and provide overload protection. Chain transmission is adopted between the reducer and the main shaft, which has a buffering effect, and can also make the transmission ratio stable, can transmit high power, and the center distance is adjustable, which is convenient for layout and installation. The drive shaft is equipped with a backstop to prevent the conveying trough from rotating in the reverse direction. In addition, for example, Yantai Xinhai Mining Machinery Co., Ltd. is equipped with an automatic meter for material quantity on the apron feeder, and a dust removal device at the head and tail, which greatly improves work efficiency and is widely used. To sum up, although the newly formulated domestic standards are close to the international advanced standards in terms of feeding volume, conveyor size, etc., how to ensure the performance of the whole machine and achieve high efficiency, low energy consumption, high reliability, etc. still need continuous efforts. .
