SU1375930A1 - Arrangement for loading and unloading the heating furnace tray - Google Patents

Abstract

The invention relates to the mechanization of the processes of loading and unloading heating furnaces and can be used in forging and thermal shops of machine-building plants. The purpose of the invention is to increase the reliability and reduce the size of the device. The device holds a rail made in the form of a frame 1 with longitudinal grooves and with a transverse bar 13 fixed on it, an emphasis 9 and a folding cam 10. The frame 1 rests on the table 3 and has the ability to move in a horizontal splash. In the extreme grooves of frame 1, rod 2 is mounted with plate 28, which interacts with support 9 and folding cam 10. At the front end of rod 2, a pushing plate 24 and another hook 25 are fixed. The frame 1 and rod 2 are installed in the bracket, which loosely mounted on the neck of the black gears and fitted with straps 20. On the gear block there are sandwiches discs. The device is equipped with a fixed on the table 3. The movement of the frame 1 and the rod 2 is carried out by means of a block of gears and gear racks 22 mounted on the frame 1. 8 Il. (L

Description

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The invention relates to mechanical engineering and can be used to mechanize the processes of loading and unloading heating furnaces in furnaces and thermal shops of machine-building plants.

The purpose of the invention is to increase the reliability of work and reduce the size of the device.

Figure 1 shows the proposed device, a longitudinal section; figure 2 - section aa in figure 1; fig.Z - section BB in figure 1; Fig, 4 is a section bb In figure 1; 15 fig.Z - type G figure 4; 6 to 8 show the position of the parts of the mechanism in various stages.

The device comprises a guide made in the form of a frame 1 with a longitudinal grooves and having the ability to move in a horizontal plane, and a pusher-dragor, complete in the form of a rod 2 installed in the longitudinal groove of the frame. The frame 1 is supported 25 on the table 3 on which the shaft 5 is mounted in the bearings 4. The movement to the latter is carried out from the actuator 6 by means of a chain transmission consisting of sprockets 6 and 7 and chain 8. On the frame 30 1 there is a stop 9 and a folding the cam 10, having side plates 11. The frame consists of two beams 12 and a transverse bar 13, with bearings 14 fixed on the front of it, in which there is a cam 10 on the axis 15.

On shaft 5, a block of 16 gears is mounted, on which two medium composite disks 17 are mounted, two edges are 40 of them disk 18 and a bracket 19 equipped with slats 20 and protrusions 21, between which and extreme disks 18 is located frame 1, to the bottom of both beams of which Toothed rails 22 are attached. 45 At the front end of the rod 2 there is a device for pushing or pulling the workpiece, consisting of two kerchiefs 23, a pushing rod 24 and a hook 25. At the back end of the rod 2 there are support bars 26. To the bottom the rods are attached to the gear rack 27, and above - the strip (abutment) 28, in turn cooperating with a stop 9 and rotary cam 10 with wheels 18 serve as a support for the frame 1, i.e. for its beams 12, and the discs 17 for the rod 2. The projections 21 and the strips 20 of the bracket 19 ensure that the gear racks 22 and 27 are engaged with the gear train.

The device works as follows.

In the initial state, the rack and pinion 27 of the pole 2 is engaged with the central gear wheel of the block 16, and the gear rails 22 of the frame with the extreme gear wheels of the block 16 are not engaged. When the drive is turned on, the rod 2 moves until its stop 28 approaches the stop 9. After the stops 28 and 9 touch, the rod 2 and frame 1 move together, while the rod 2 leads frame 1 and engages its rails 22. with the extreme gears of the block 16 (Fig. 6) Upon further movement, the rail 27 disengages from the central gear of the block 16, and the rod 2 stops. At the same time, as the frame 1 moves, the plate 11 descends from the bars 20 and the cam 10 descends. After the boom 2 stops, the cam 10 travels a distance of 1 and is in contact with the stopper 28 of the boom 2. The gap 1 is necessary for the normal operation of the cam 10.

After that, the frame 1 and the rod 2 move together until the end of the stroke forwards (Fig. 7). After turning on the reverse, frame 1 moves back until the gap 1 between the stop 9 and the stop 28 is selected, after which the frame and the rod move together until the rail 27 enters into engagement with the central gear of block 16 (Fig. 6), since during forward and reverse the strokes in contact are the same surfaces of the parts 9 and 28, which ensures a normal engagement of the rails with the gear train.

Upon further joint movement of the rod 2 and the frame 1 backward, the side plates 11 approach the bars 20 and the cam 10 rises.

Next, the rails 22 come out of the engagement with the side gears of the block 16, and the frame 1 stops. The rod 2 continues to move backward, the attached cam 10 allows the stop 28 to pass under it (Fig. 8).

When approaching the initial position, the gusset plate 23 abuts against the stop 9 and the bar 2 pushes the frame 1 into the initial position.

The operation of the mechanisms when pulling out the pallet is similar, only in the initial position the hook 25 should be set to the top and the position.

The proposed device allows increasing the output from one square meter of production area and simplifying the design.

Claims (1)

Invention Formula A device for loading and unloading pallets of heating furnaces, comprising a guide installed on the table and a pusher-dragor placed in the guide with reciprocating movement, with a grip and a pushing bar fixed on it, is necessary so that, in order to increase the reliability of operation and reduce the size of the device, the guideway is displaceable in the horizontal plane in the form of a frame with longitudinal grooves on which. fixed stop and folding cam, and the pusher-puller is made in the form of a rod installed in the longitudinal groove of the frame, with fixed on it. the bar interacting alternately with the stop and the cam frame cam. Fi.g.2 / aj Jli ./ zp w FIG. 15 20 about pg and Type G J4 11 t W PP1 | at Peddon 9e.5 20 22 ..y; .77. Phage. 7 Fig.8