A kind of rolling saggar rolling progressive mechanism and rolling progressive method

Abstract

A rolling saggar rolling progressive mechanism and rolling progressive method belong to the technical field of high temperature sintering kilns. A rolling sagg rolling progressive mechanism, which comprises a plurality of lifting wheels which are cylinders, the axes of the lifting wheels and the axis of the sagger are parallel to each other in three-dimensional space, and the distance between the axes of two adjacent lifting wheels is smaller than that outside the saggar. The diameter of the profile cross-section, each lifting wheel is connected to an independent lifting mechanism so that each lifting wheel can be lifted and lowered independently in the vertical direction. The tumbling advancement method of the tumbling advancement mechanism of the rolling saggar utilizes the lifting and lowering coordination of the lifting wheels to realize the advancement of the saggar in the advancing direction. The above-mentioned rolling saggar tumbling advancement mechanism and tumbling advancement method can shorten the overall length of the kiln, the rotation speed of the sagger can be adjusted, the overall mechanical structure is reliable, and the sintering requirements of related materials can be met.

Description

technical field [0001] The invention belongs to the technical field of high-temperature sintering kilns, and in particular relates to a rolling sagger tumbling progressive mechanism and a tumbling progressive method. Background technique [0002] High temperature sintering furnace is an important heating equipment commonly used in the industry, which is widely used in powder sintering or green body sintering of active metals, refractory metals and their alloys, ceramic materials, and dissimilar materials. Traditional high-temperature sintering furnaces can be mainly divided into push-plate kilns and rotary kilns according to their structure. The main body of the push-plate kiln is a tunnel-type high-temperature kiln body, and the saggars containing the materials to be sintered are lined up in sequence to push the kiln body from the kiln head. After a period of high-temperature sintering in the kiln, the saggars are constantly being sintered. The horizontal sequence moves, b...

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Problems solved by technology

[0004] In practical application, it is found that this type of tunnel kiln has the following problems: First, the length of the push plate propulsion mechanism is usually very long, which is not suitable for placing in the laboratory for small powder sintering tests, which limits its application scenarios. Moreover, the hydraulic drive mechanism usually used to push the push plate forward often has problems such as high mechanical failure rate and easy oil leakage.

Secondly, the drive mechanism that drives the sagger to rotate by means of gears, racks or chains in this patent document is prone to problems such as occlusal failure and adhesion on the surface of the device under the action of high temperature and dust in the tunnel kiln. The rotation speed of the sagger is out of control, and on the other hand, the reliability and life of the whole machine are also reduced.

In addition, some powder sintering processes require different turning rates at different stages, which requires that the rotation speed of each saggar be flexible and controllable at different positions in the kiln. In the kiln given in the aforementioned patent documents Among them, it can only be realized by increasing the number of racks / chains, which further reduces the reliability of the whole machine and also increases the cost

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