SU1342843A1 - Arrangement for levelling the ends of stacked logs - Google Patents

Abstract

The solution relates to devices for leveling the ends of the package logs and allows to simplify the design, increase the reliability of operation and reduce the metal intensity. The device comprises a base 1, on which movable butting shields 3 and 4 are mounted, electromechanical and gravitational drives for moving shields 3 and 4 with a cable-block system 24-26. The gravitational and electromechanical drives are connected directly to each other by a combined clutch 6, simultaneously fixed on the extension of the low-speed gearbox shaft and on the shaft with rigidly fixed traversing drum 19 of the load lifting and rope leading drums 17, 18 of the cable-and-block system for driving the facing shields 3 and 4, both shield 3 and 4 are connected to the upper branches 24 of the cable block system, and shield 3, which is closer to the drive, is also connected to the lower branches 26 of the cable block system. In addition, the combined clutch 6 consists of interconnected, located on the extension of the shaft of the gearbox 8, moving in the slots of one of the coupling half coupling coupling 1 and one of the links of the roller free-wheeling clutch, as well as rigidly fixed on the shaft 13 with the second axes 17-19 second coupling half coupling of another link with jamming rollers overrunning clutch. 5 С /) 20 p / I / 1,

Description

And the acquisition relates to the packing of goods and can be used in the woodworking, metallurgical and other branches of sawing.

The purpose of the invention is to increase the reliability of work and reduce the metal consumption by reducing the power loads on the frame.

FIG. 1 shows a kinematic diagram of the device; in fig. 2 - the device, a general view from the side; Fig.3 scheme of the ropes; 4 shows a combined coupling; in fig. 5 is a view A of FIG. four.

YcTpofiCTBO for leveling the ends of a package of logs contains a frame 1, on which skids 2 are mounted on rollers 2 without flanges, the high-speed shaft is disengaged by recurring shields 3 and 4. On horizontal platforms of shields 3 and 4, weights-counterweights 5 are fixed. On the left reinforced part frames 1 are placed directly connected to each other by a combination of 5 coupling by a coupling 6 gravitational and electromechanical drives of shields. The electromechanical drive consists of electric motor 7 and gearbox 8, on its high-speed shaft 30 an electromagnetic brake 9, and a continuation of the output shaft of the gearbox connected to the shaft of the gearbox by means of a constant clutch 10. The greater angular velocity is a part of the combined clutch 6 sub-35.

the motor 8 and the motor 7 is turned on, the torque from which is transmitted to the gearbox 8 through a belt drive, and then through the constant clutch 10 to the link I of the roller obegne clutch 12 (clockwise rotation). When releasing the high-speed shaft of the gearbox 8 under the action of the force of the load of the weight 21, the shaft 13 with the drums rotates clockwise and the upper branches 24 of the rope are matted on the drums 17 and 18, and the lowering is wound from them. When this link II overrun roller clutch 12

Vision relative to the shaft, moving (manually or automatically) in the spitz of the coupling half 11 of the coupling clutch and rigidly fixed link I of the roller overrunning clutch 12. On the shaft 13, placed with the possibility of rotation in the supports 14 and 15 on the base 1, are fixedly included in the combination clutches 6, half coupling 16 sticks out clutch, link II roller free-wheel clutch 12, drums 17 and 18 of drive drive and load drum 19. The gravitational drive is carried out through a cable guide drum 19 with two ends of the cable stored on it and deflecting blocks 20 with a load 21, which can move in shaft 22 mounted on frame 1,

The shield drive system includes hooks. When equalizing the speeds, the rotational blocks 23, the upper branches 24 of the shaft 13 with the drums and the output nat, 2-3 thread of the ends of which weld the gearbox B and decrease, are skewed on the drums 17 or 18 and the link joints 2 couplings 12 by quenching the dinene with shields 4 and 3 through the blocks of the potential energy of the load 21 at

25, and the lower 2f, 2-3 thread of the ends of which are also stored on drums 17 or 18 and connected with shield 3 (in Fig. 3, the places of rope pulling to the shears are shown) with rectangles, and the places of the upper legs of the 24 ropes with channels passing through blocks 25, - circle ohm).

The operation mode of the device is as follows.

The uncut package of 27 logs is supplied by the rafting unit 28 to the zone of action of the leveling points 3 and 4. When the rafting unit stops at the right place, a limit switch (not shown) is activated, which disconnects the coupling coupling (half coupling 11 moves away from coupling half 16),

a greater angular velocity is reported.

the motor 8 and the motor 7 is turned on, the torque from which is transmitted through a belt transmission to the gearbox 8, and then through the constant clutch 10 to the link I of the roller free-wheeling clutch 12 (clockwise rotation). When releasing the high-speed shaft of the gearbox 8 under the action of the force of the load of the weight 21, the shaft 13 with the drums rotates counterclockwise and the upper branches of the rope 24 are wound on the drums 17 and 18, and the lower 26 are wound from them. When this link II overrun roller clutch 12

than the link I from the electric motor 7. There is going to be overtaking - the wedging of the rollers and the disconnection of the link II from the link I. Shield 4 connected to the upper branches

24, moving from right to left, and the shield 3 connected to the upper 24 through the blocks 25 and to the lower branches 26, due to the great preload in the ropes passing through

blocks 25, compared with the tension in the lower branches x 26, are moving from left to right. The ends of the package 27 are aligned. The forces acting on the shields 3 and 4 are perceived by the upper branches of the cable-blocking system 24 and transmitted through them to the cable-driving drums 17, 18 and blocks 25. The counterweight loads 5 additionally prevent the shields from turning in the vertical plane.

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interaction | On the action of the shields 3 and 4 with 11pka 1 h m 27, the clutch rollers 12 are jammed and two kinematic chains are interconnected. The platta is pressed due to the weight and torque transmitted by the electric motor 7. When the maximum torque force is reached, the maximum coupling current located in the electric motor control circuit activates the coupling clutch by bringing together its coupling halves 11 and 16, produced manually or automatically and the motor 7 is switched to reverse. Through the overrunning clutch, the torque from the electromechanical drive is transmitted to the drums 17-19, which, rotating, wrap themselves around the ropes, thereby moving apart the shields 3 and A and lifting the load 21. At the same time, the package with the trimmed logs is located on the raft unit 28, is removed from the zone of action of the end-leveling device. Shields 3 and 4, to the extreme position, act on limit switches (not shown), which ensure the motor 7 to stop and the high-speed electromagnetic brake 9 to brake. la gear 8. In this clutch incorporation is information with the coupling halves 11 and 16 as direct lifting the load 21, and while holding it in the upper position. The facing process is then repeated.

Due to the new layout of the drive, i.e. placing the drive drums and the load lifting drum on one horizontal shaft, the loads perceived by the facing shields are not transmitted to the device frame, but to the upper branch of the ropes

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Claims (1)

Invention Formula A device for trimming a package of logs containing (the upper frame, mounted on it with the ability to move horizontally the facing panels, connected with the drive of their movement, including an electric motor, a reducer, on the drive shaft of which a drum is placed, and a rope that surrounds and guides the rope associated with shields and mounted on a cable kinematically associated with a drum, a counterweight mounted in guides with the possibility of movement in a vertical plane, characterized in that, in order to reliability and reduced metal consumption by reducing the power loads on the frame, it is equipped with a tension block, bending around the rope to form the upper and lower branches, an intermediate block placed under the lower branch of the rope, an additional rope around the intermediate block and connected at one end with the upper branch of the first rope, and the other from the lower and one end of the shield located on the drive side connected to the lower end of the rope with the other end, and the drive for moving the shields, the accessory} 1О contains No, connecting parts of the output shaft, adjacent to the gearbox and carrier drum, and consisting of fixed with the possibility of alternate switching on the cam clutch of the said parts and the overrunning clutch of the movable part of these parts, the second shield being connected to the upper branch rope, and the drum is placed on the load side. fM (U : uh t- "M / 6 Rag.z 8td ff 9g.1 ig.5