SU1227925A1 - Arrangement for moving billets in furnace - Google Patents

Description

The invention relates to metallurgy and mechanical engineering and can be used for the mechanization of heating and thermal furnaces.

The aim of the invention is to increase reliability and simplify the design.

FIG. 1 shows the proposed device, a general view; in fig. 2 - the same, top view.

The device for transporting the blanks in the furnace contains furnace guides 1 with holes for placing the heated blanks 2. Below the level of the furnace guides 1 parallel to them inside the furnace are installed internal 3 and external 4 pull chains connected in pairs. On the outer chain 4 pivotally mounted pushes 5 are uniformly distributed with a predetermined pitch, and in the cheeks it is made longitudinally uniformly distributed with the same schagom grooves 6. The inner chain 3 is provided with fingers 7, the working surface of which is made in the form of cams 8. ability to interact with the pushing lugs 5 and the grooves 6 of the outer chain 4.

The internal circuit 3 is connected on one side with the drive 9 for stepping forward movement, and on the opposite side with the counterweight 10 for returning the device to its original position. The number of furnace guides 1 and the external 4 and internal 3 chains interconnected in pairs is determined on the basis of the length of the heated blanks.

The device works as follows.

For the next movement of the workpieces 2 in the furnace, a drive 9 is turned on in one step, which moves the internal circuit 3 forward. First, the idle stroke of the internal chain 3 occurs, since in this case the fingers 7 freely move in the grooves 6 of the cheeks of the external chain 4, and the working surfaces of the fingers, made in the form of cams 8, interact with the pushing stops 5,

five

they are lifted from the starting position to the working position 5a (shown in Fig. 1 by the example of the leftmost pushing stop), at which the pushing stops are set above the level of the bead tracks 1.

Further movement of the internal chain 3 occurs together with the external chain 4, while the blanks 2 are moved along the furnace guides 1 by the pillars 5 by one step, and the far left billet is withdrawn from the working zone of the furnace and the next billet is in its place.

Then, the actuator 9 is turned off and the internal circuit 3 under the action of the counterweight 10 returns to its original position, and the internal circuit 3 first idle through the movement of the fingers 7 in the grooves 6, while the pushing stops 5 lower below the furnace guides and set in the initial position position Then, the internal chain 3 and the external chain 4 begin to move together, with the pushing stops 5 passing under the blanks, after which the chains 3 and 4 stop in the initial position,

5 prepared for the next next movement of blanks one step forward.

The device provides increased reliability by performing pushing stops on flexible elements.

0 designs (pairwise interconnected outer and inner chains) with ensuring their forced movement to the working and initial position, which eliminates distortions, seizures, warping inherent in devices of rigid construction.

The proposed device is simpler in construction than the known ones due to the fact that the forced movement of the stops is carried out by one chain mechanism of displacement, and not by individual drives for each stop.

Compiled by Yu. Usatyi

Editor N. GorvatTechred I. VeresKorrektor A. Ferenc

Order 2002/40. Circulation 561 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, F - 35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR TRANSPORTING Billets in the furnace, containing guides for blanks, cantilever and pivotally fixed stops with a mechanism for moving them, a step-by-step drive of guides, characterized in that, in order to increase reliability and simplification. designs, the mechanism for moving the stops is made in the form of inner and outer chains pairwise interconnected with longitudinal grooves in the outer chain and fingers with a working surface in the form of cams mounted on the inner chain and interacting with the outer chain through grooves in the outer chain, while the stops are installed on the outer chain with the possibility of interaction with the fingers, and the inner chain is connected to the drive on one side and the counterweight on the other. FIG. 7 GO to m ς © go SL