SU1183435A1 - Device for emergency stop of steeply inclined conveyer chain - Google Patents

Abstract

DEVICE FOR EMERGENCY STOPPING OF A CHAIN OF A CRUTON-HL CONVEYOR, having a frame, hinged on the frame and kinemati1 1 working levers interacting with the chain of the conveyor, a tandem in the form of a lever with a weight attached to the other side of the sharpener of a hanger and a hanger. and an emphasis with a limit switch included in the power supply circuit of the drive of the chain of a high-angle conveyor, characterized in that, in order to extend its operational capabilities, it is provided with an additional emphasis and a final switch Attic, wherein the operating levers are rigidly connected to each other, and stops with the end of the switch E are located on both sides of the pendulum ma to cooperate with it, the additional stop is spring-loaded. a 5S (O 00 00 4 CO sd 8 Cpuz.f

Description

FIELD OF THE INVENTION The invention relates to industrial transport, namely to devices for emergency locking of a high-angle conveyor chain. The purpose of the invention is the expansion of operational capabilities. FIG. 1 shows the section of the conveyor, general view; in fig. 2 is a view A of FIG. one; in fig. 3-6 - device when operating in the absence of open circuit mode, general view; in fig. 7-10 - the same when working in open circuit mode; in fig. 11 - the same, when operating in the reverse mode of the chain after an open circuit; in fig. 12 — node I in FIG. 11. On the shaft 1 mounted on the frame in the support 2, two grippers 3 are fixed, each of which consists of the front 4 and the rear 5 operating levers rigidly connected to one another. On the other side of the hinge of the operating levers 4 and 5, a tandem in the form of a lever 6 with a load of 7, inclined at an angle to the horizon, is attached to them. The lever 6 with the load 7 constitutes a screw pair, which makes it possible to adjust the position of the load 7 along the longitudinal axis of the lever 6. The grippers 3 with their working levers 4 and 5 interact with the joints 8 of the chain 9. On both sides of the master (lever 6), an emphasis is placed 10 with a limit switch 11 and an additional stop 12 with a limit switch 13. Before the additional stop 12, an elastic element 14 is installed. The device operates in the following modes: no open circuit (Fig. 3-6); open circuit (Fig. 7-10); reverse circuit (Fig. 11 and 12). The operation of the device is considered by the example of the operation of a single gripper 3 fixed on the shaft 1 with one chain 9. In the absence of open circuit mode (Fig. 3 and 4) under the influence of the force P of the load 7 on the lever 6, the axis of which is perpendicular to the axis of the shaft 1, the latter rotates counterclockwise against the stop of the lever 6 into the elastic element 14 of the additional stop 12, while the operation of the lower limit switch 13 does not occur. As a result, the front operating lever 4 leaves the zone of movement of the chain 9, and the rear 5 enters (Fig. 3). Chain 9 when moving down with its joint 8 presses the rear operating lever 5 (Fig. 3). The shaft 1 with the grippers 3 and the lever 6 with the load 7 rotates clockwise, while the front operating lever 4 enters the zone of action of the chain 9 (Fig. 4). As a result, the action of the joint 8 of the chain 9 on the rear operating lever 5 of the pilot (lever 6) does not reach the stop 10 (Fig. 5). After hinging 8 of chain 9 of the rear operating lever 5, shaft 1, under the influence of force P of load 7, rotates counterclockwise and removes the front operating lever 4 from the zone of action of chain 9, allowing the next joint 8 of chain 9 to go down. The lever 6 reaches the elastic element 14 of the additional stop 12, without causing the operation of the limit switch 13 (Fig. B). The process then repeats. By adjusting the position of the load 7 on the lever 6 along its axis, it is possible to select the frequency of the swinging shaft at which the chain moving at a speed V- is passed through the device in the absence of an open circuit. The movement of the load 7 along the axis of the lever 6 is carried out by rotating the load like a nut along a thread applied to the surface of the lever 6 (Fig. 12). In the event of a break, the descending branch of the chain 9 begins to move with speed Vi Y. The hinge 8 of the chain 9 hits the rear operating lever 5 (Fig. 7) and the shaft 1 with the lever 6 rotates counterclockwise to a greater angle than in the absence of a break circuit 9. The front operating lever 4 is introduced into the zone of movement of chain 9 (Fig. 8). Since the speed of the fall of the chain 9 is greater than the speed V of its normal movement and the front operating lever 4 moves deeper into the moving zone of the chain, it does not have time to get out of the moving zone of the chain, and the next joint 8 of the chain 9 presses the front working lever 4 and causes an additional rotation of the shaft 1 with the grippers 3 and the lever 6 clockwise (Fig. 9). The shaft 1 rotates, the lever 6 rests on the support 10, the limit switch AND is activated, turning off the conveyor drive motor. The hinge 8 of the chain 9 rests on the front operating lever 4, and the lever 6 rests on the support 10. The chain 9 stops, its fall stops (Fig. 10). During the reverse course of the chain 9 under the influence of the hinge 8 on the front operating lever 4 and the force P of the load 7, the shaft 1 is turned counterclockwise. The lever 6 rests on the elastic element 14, without causing the additional limit switch 13 to operate. The next hinge 8 rests upwards against the rear operating lever 5 as the chain 9 moves. The lever 6 overcomes the resistance of the elastic element 14, an additional limit switch 13 operates and switches off the conveyor drive motor (Fig. 11). Thus, the hinge of the chain 9 rests on the rear operating lever 5, rigidly mounted on the shaft 1, and the lever 6, also

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rigidly fixed on hall 1, rests on the proposed) ycTpoiiCTy; j

in additional vnop 12, the circuit 9 permits the expansion of its operation.) 1e depends on its possibilities.

1183435

Type A

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Claims (1)

EMERGENCY DEVICE DEVICE FOR THE CIRCLE OF A CROSS-TILTED CONVEYOR, having a frame pivotally mounted on the frame and kinematically connected to one another by working levers interacting with the conveyor chain, a pendulum in the form of a lever with a load, attached on the other side of the hinge to one of the working levers, and an emphasis with a limit switch included in the power supply circuit drive steeply inclined conveyor, characterized in that, in order to expand operational capabilities, it is equipped with an additional stop and limit switch, p By the way, the working levers are rigidly connected to each other, and the stops with limit switches are located on both sides of the pendulum with the possibility of interaction with it, while the additional stop is spring loaded. FIG. 1