Bidirectional push-pull trolley for pusher furnace

Abstract

The invention discloses a bidirectional push-pull trolley for a pusher furnace. The bidirectional push-pull trolley comprises a rack, a left-side one-way handle, a right-side one-way handle, a left push chain wheel, a right push chain wheel, a push-pull chain, a left push-pull hook head and a right push-pull hook head; and the bidirectional push-pull trolley further comprises left and right forcedreset mechanisms arranged on the rack for forcibly resetting the left and right one-way handles to horizontal positions. The bidirectional push-pull trolley for the pusher furnace has the beneficialeffects that the left and right forced reset mechanisms can forcibly reset the left and right one-way handles to the horizontal positions, so that it is ensured that the left and right one-way handlesfall, it is ensured that the left and right push-pull hook heads can pass, and it is ensured that the condition that the left and right push-pull hook heads are subjected to impact failure in the process of pushing a material plate travelling to the left and right due to the fact that the left and right one-way handles do not fall is avoided, so that the failure rate is reduced, and the reliability of the equipment is improved.

Description

technical field [0001] The invention relates to the technical field of push rod furnace mechanical equipment, in particular to a bidirectional push-pull cart for a push rod furnace. Background technique [0002] The push rod furnace relies on the two-way push-pull cart to periodically push the material tray placed on the track into the furnace or out of the furnace, so as to realize the heat treatment process for the workpiece placed on the material tray. The push rod furnace has strong adaptability to different heat treatment processes, so it is convenient to form a production line, and is widely used in heat treatment processes such as quenching, normalizing, annealing, tempering, carburizing, nitriding and carbonitriding. [0003] see figure 1 , shown in the figure is an existing two-way push-pull cart for a push rod stove, which includes a frame 10, a left one-way handle 20a, a right one-way handle 20b, a left push sprocket 30a, and a right push sprocket 30b, The push-...

AI Technical Summary

Problems solved by technology

[0006] However, the applicant found that in practical applications, the two-way push-pull cart is completely in an exposed environment, and the left one-way handle 20a and the right one-way handle 20b will accumulate dust and debris, as well as processing workpieces dropped during the movement of the tray 60. Oxidized skin, so that the left one-way handle 20a and the right one-way handle 20b cannot fall naturally to form a bridge due to their own weight, but maintain a tilted state. When the left push-pull hook 50a and the right push-pull hook 50b pass through the left one-way The handle 20a and the right one-way handle 20b cannot form a guide, and will hit the left one-way handle 20a and the right one-way handle 20b, resulting in the failure of the normal operation of the two-way push-pull cart

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