RU2029639C1 - Mobile aggregate for timber packs log by log disassembling and round timber sorting - Google Patents

Abstract

FIELD: timber industry. SUBSTANCE: aggregate has bunker 1 with stationary and movable walls 2. Movable wall is made in the form of fork-type catch 3, that is capable to be turned around its axis by hydraulic cylinders 4. Stationary wall end has small threshold 5 in zone of action of elevator 6. Butts levelling device 7, log by log feeding mechanism 8 and transverse sorting conveyer 9 are mounted after elevator. Conveyer 9 has sorting carriages 10, connected by elbow lead rods 11 with pulling chains 12. All mechanisms of the apparatus are mounted on common frame 13. Hinge 14 divides frame of apparatus for two parts: frame of sorting transporter 15 and frame of timber rolling table 16. Frame of apparatus has several supports. Extreme supports 17 and intermediate support 18, using wheels 19 , turned by 90 deg in respect to longitudinal axis of apparatus, rest at railways 20. Fork catch has posts, that together with the fork catch are mounted on movable platform on their common axis. Fork catch is fixed on its axis by hinge, and hinge of fork catch is located eccentrically in respect to axis of fork catch. Movable platform of fork catch moves in fork catch platform frame 25, one end of which rests at frame of timber rolling table and its other end rests at outriggers 27 in process of timber truck packs unloading. Ropes 29, forming rope basket, are laid on bottom of bunker. One side ends of rope basket are fixed on load winch 30, other side ends of rope basket, passing through rings 31 and leads 32 also with rings at their ends, through which ropes of rope basket are passing, are connected with fork ends of fork catch. Timber rolling table frame has mounted on it drive 33 for transverse sorting conveyer and log by log feeding mechanism. Catches with remote control locks are mounted on ends of fork catches posts. Ropes of rope basket are used to be connected to the locks during lifting timber packs from timber trucks. Special lift 35 with small threshold 36 is mounted between bunker and log by log feeding mechanism. Lift and threshold are used for preliminary log by log separation from their continuous single-row feeding. Sorted logs are thrown down in collectors 37. Collectors are located in several rows. Sorting apparatus after one row collectors filling, using wheels, moves to row of free collectors. To move timber packs in bunker on timber rolling table frame, fork catches platform drive 38 is used. To feed round timber to sorting apparatus timber trucks are used. Aggregate is controlled from one panel, located in operators room 40. EFFECT: aggregate is used in timber industry. 4 cl, 2 dwg

Description

 The invention relates to the forest industry and can be used to carry out a complex of technological operations for unloading trucks, piece dismantling packs of logs, individually distributing them to carriages of a sorting conveyor and sorting round timber by species composition, diameter and quality. The proposed device can be used for sorting round timber at Pulp and Paper Mill, Timber Processing Plant, LPB, LPH, etc.

 A device for disassembling beams of logs and the formation of a transverse brush (ed. St. N 353893, class B 65 C 69/20, 1972), including a hopper formed by a movable and fixed walls, a cable cradle and an inclined elevator with hooks for grabbing logs, in which to lower the shock loads on the working bodies of the elevator on the fixed wall of the hopper mounted thresholds, the height of which exceeds the height of the hooks of the elevator.

 The disadvantage of this device is that it is designed to be used in a stationary version and the hinge of the movable wall is fixed to the foundation motionless. The free ends of the ropes of the rope cradle are rigidly fixed to the end of the movable wall. The movable wall does not have vertical struts and, therefore, cannot be lowered at the ends of the ropes of the rope cradle to a horizontal position. All this does not allow the use of this device to create mobile machines sorting round timber.

 A device for the single-piece disassembly of large-volume bundles of logs (ed. St. N 698878, class B 65 C 59/06, 1979), containing a hopper formed by movable and fixed racks, the lower ends of which are pivotally connected to each other, a cable cradle located above bunker, inclined elevator with hooks for grabbing logs, a horizontal feed conveyor and a winch with a cable stored on its drum, which is equipped with horizontal guides located on the same level with the horizontal hearth to reduce the time to disassemble the bundle conductive conveyor belt, and the movable rack is provided with a stop equipped with a slider displaceable in the guides, with both ends of the winch attached to the slider.

 The disadvantages of this device include the same disadvantages as the device according to ed. St. N 353893. The main thing is that the hinge of the movable racks is stationary, and the initial lifting of the movable racks, after a bundle of round timber has been fed into them, is carried out by the movement of the sliders and stops.

 Known sorting carriage of the transverse conveyor (ed. St. N 335172, class B 65 C 41/02, 1972), including mounted on the rollers and rotatable around its longitudinal axis of the carrier beam, pivotally connected using a cranked lead to the load chains of the conveyor, which, to reduce the metal consumption of the carriage, the supporting beam is provided on both sides with a row of brackets, the last of which is made with guides arranged parallel to the longitudinal axis of the beam, in which the shaft with the address roller is movably mounted, and the brackets form there is a tray between itself, the axis of symmetry of which is shifted relative to the longitudinal axis of the beam in the direction of the tipping of the carriage, the fixation of which in the horizontal position is carried out using rollers mounted on a number of brackets and an address roller.

 This invention served as the basis for the creation of the world's most productive cross-screen sorting conveyor in the PRS-SibNIIILP line, which was tested under production conditions in 1983 at Novoeniseyskoy LDK. The commission adopted the line and recommended it for implementation in the industry. However, this line was designed by the author of this application as a stationary mechanism. The ORS line, like all similar stationary mechanisms, required equipping it with a significant number of various conveyors, trays and conveyors for cleaning bark and garbage from under it. The presence of these auxiliary mechanisms dramatically, almost doubled, increased the cost of the line and several times reduced its reliability coefficient. It should be noted that the sorting complexes for sorting round timber of the Finnish company "Valmet" at Lesosibirsk LDK-2 for the same reason as ORS, have an extremely low reliability coefficient and bring the company annual losses from their operation.

 Kinematic interaction of sorting carriages in the device by av. St. N 335172, with other mechanisms of units, for example in the PRS line, to some extent reveals a technical solution, ed. St. used in the mechanism of loading carriages of the transverse sorting conveyor with long loads (ed. St. USSR N 335179, class B 65 C 41/02, 1975), including the transverse feed conveyor and the piece feed mechanism, made in the form of two sequentially installed shafts with of them, respectively, with sprockets and crosses having a common drive, in which, for unstressed feeding of logs to the carriage of the sorting conveyor, the piece feed mechanism is made with the intermittent movement of the sprockets and crosses n, and on the side of the frame of the sorting conveyor an inclined shelf is installed with rotary rollers located under it, interacting in the process of working with the bracket of the carriage, which has an additional lever with a roller, which is moved along the guide mounted on the frame and located on both sides of the gate. Kinematic interaction of the sorting conveyor carriages in the device according to ed. St. USSR N 335172 with a piece-by-piece dispensing mechanism is carried out in this invention by means of a discontinuous mechanism such as a Maltese cross, which provides a strictly specified rotation of the cross-piece of the cutter when the carriage approaches it and then transfers another object, in this case round timber, from the cross to the carriage. However, round timber has a variety of sizes, not only in length, but also in cross section and in a very different shape. This mechanism, providing reliable laying of an object in the sorting carriage when timber is received in the cutter with a large difference in diameters (for example, 80 cm and 5 cm at the same time), is not able to separate them and sometimes gives both objects to the carriage at the same time.

 Closest to the technical nature of the proposed device is a device for sorting timber (ed. St. USSR N 1839740 class B 07 C 5/14, 1988), including the mechanisms established during the technological process for feeding, uncoupling bundles and piece delivery of timber to the cross sorting conveyor, in which, to simplify the design, increase reliability and productivity, the device mechanism is mounted on a common frame made articulated in a vertical plane with the ability to move rpendikulyarno to the longitudinal axis of the device.

 This device, having significant advantages over existing devices for sorting round timber, nevertheless has a number of disadvantages. The loading of the device, as well as the loading of all currently existing mechanisms for sorting round timber, is carried out by a separate lifting mechanism - a forklift, crane, manipulator, etc. In this case, the device is ed. St. N 1839740 is loaded either with a crane or a forklift. For this, the receiving table of the device is made in the form of a transverse 3-chain forest conveyor. The presence of this receiving conveyor in it is the second disadvantage of this device. This conveyor performs its functions and provides loading of the sorting conveyor with timber, however, due to the functions it performs, it is quite bulky, requires a powerful drive, and most importantly, together with mechanisms for disassembling pieces of bundles of timber of significant structural dimensions, and therefore, a powerful frame and large metal energy intensity.

 In FIG. 1 shows the proposed device assembly: in FIG. 2 - its head part on a larger scale.

 The device consists of a hopper 1 with a movable and stationary machines 1. Fixed wall 2 is a series of beams, to which a bundle of timber is pressed after it is removed from a forest truck. As the movable wall of the hopper 1, a fork 3 is used, which can be rotated around its axis by the hydraulic cylinders of the fork 4. The beams of the fixed wall 2 of the hopper 1 break off in the area of the elevator with a nut 5. The elevator 6 is designed to raise timber that has crossed the threshold 5 from the hopper to end equalizer 7. For piece-wise separation of the timber brush and piece-laying of timber and piece-laying of timber on the carriages of the sorting conveyor, a mechanism is installed in the device 8. The cross boxed issuing sorting lesotransporter 9 consists of several sorting carriages 10, 11 connected to elbow leashes with traction chains 12 of the device. Sorting carriages 10 are moved along rail tracks laid in two tiers. The traction chains 12 move along their closed loop, and the sorting carriages - along the rail tracks. Since the carriages are connected to the chains using cranked leads 11, the chains and carriages move along different contours independent from each other, and the carriage, moving along the lower rail tracks, moves the conveyor guide through the curve and gate from the lower tier of the rail tracks to the upper . At this point, the attachment point of the cranked lead to the traction chain 12 goes around the lead turret, the sorting carriage rises to the upper tier of the rail, stops and changes its direction of movement. Having reached the left passage, she rests with the rollers of her cranked leashes on the curve curves of the left transition and smoothly descends to the lower rails, stops (at that moment a sortable object is laid on it) and again makes its movement along the lower rail track along the front of the storage pockets) .

 A sorting conveyor (carriages 10, cranked leads 11, traction chains 12) is mounted on a common frame of the device 13, which has three support points in the form of rail tracks. In order for the device to fit better in its paths and for a more rational distribution of loads on the supports, the frame of the device 13 has a hinge 14. Thus, the common frame 13 with the hinge 14 is divided into two parts (there may be more of these parts) - to a part of the common frame under the sorting conveyor 15, covering rail tracks, for example, of the KSK-10 crane, if the device works in conjunction with it, or the entire front of the storage pockets, if it works in conjunction with cranes of other brands, and to a part of the overall frame under the rolling table 16 and puller. As noted above, the proposed device has three support points (Fig. 1) - the extreme points of the support 17 and the intermediate 18. Each support has a crane wheel drive pairs 19 that move the entire device along rail tracks 20 along the front of the rows of pockets of drives and stacks. In FIG. 2 on a larger scale shows the head of the proposed device. It is a mechanism for unloading trucks. In addition to the forks 3, which serves as the gripper and the role of the moving wall of the hopper, the mechanism has fixed racks 21 mounted on the axis of rotation 23, which in turn is mounted motionless on the movable platform 22. On the axis of rotation 23 freely lies the fork 3, and it the hinge 24 is displaced relative to the axis of rotation 23 by an amount that ensures the operation of the forks 3 after the termination of the action of the hydraulic cylinders 4. The movable platform 22 of the unloading mechanism of the truck is moved in the grooves of the frame of the fork truck platform grip 25, one end of which is supported through the hinge frame 26 on a part of the overall frame of the device under the rolling table 16, and the other in the process of removing the bundle of timber from the truck on the outriggers 27. The hydraulic cylinders of the outriggers 27 are based on a common shoe, hinged by the frame of the outrigger 28 with the frame of the rolling table 16. Ropes 29 are attached at one end to the drums of the winch 30, and their other ends have rings through movable rings 31, smaller in diameter than the first ones, and through leashes 32 are connected to the ends of the forks 3. On an intermediate support For properties 18, a common drive 33 is mounted for the sorting conveyor 9 and for the single-piece dispensing mechanism 8. The forks in the upper part 21 have special grips with remotely controlled locks 34, which provide reliable grip on them of the ends of the ropes 29 and their remote release after the bundle timber will be removed from the truck, moved to the fixed wall 2 and the forks 3 with hydraulic cylinders 4 will be raised to its upper extreme position. From this moment on, the forks work as a moving wall of the hopper, and the ropes act as a cable cradle. In order to piece by piece the brush of round timber with a significant difference in the diameters of the logs, a special elevator 35 is installed between the screw end equalizer 7 and the mechanism of piece delivery 8 for a single piece of timber 36. Under the frame of the sorting conveyor 9, pockets are placed between the supports 17 and 18 of the device - drives 37, and they are placed in several parallel rows to each other over the entire distance of movement of the proposed device. On the frame of the rolling table 16, in addition to the above mechanisms, there is a drive for moving the fork platform 38. In FIG. 2 are additionally indicated, a forest truck 39 and an operator’s 40, in which all control systems of the proposed device are located.

The device operates as follows. Before starting work, the device operator raises the outriggers 27, turns on the movement mechanism 19 and installs the entire device over one of the rows of pockets - drives 37. The truck 39 stops near the device so that the center of gravity of the bundle of timber coincides approximately with the central axis of the device. Fork capture 3 goes under a bundle of timber on a truck, both ends of the cables 29 of the cable cradle are pulled under the bundle, which are thrown through the bundle and secured by rings 31 in the grippers with controlled locks 34. After that, the hydraulic cylinders of the controlled locks are turned on and they are firmly closed. This eliminates the spontaneous opening of the locks during the removal of the pack from the truck. Then the winch 30 of the ropes 29 is turned on and their slack is selected. After the ropes tightly gripped the bundle, the cones of the truck are opened, the hydraulic cylinders 4 and the drive of moving the fork platform 38 are turned on. The pack moves from the truck to the fixed wall 2 of the device and simultaneously rotates at an angle of approximately 45 ^° . After the pack was in the hopper 1, it is formed on one side by a fixed wall 2, and on the other by a fork 3, and the truck has moved away from the device, the remote-controlled locks 34 hydraulic cylinders are turned on, their grips are first released from locks and then opened. Rings 31 of ropes 29 are released. The winch 30 is turned on and the ropes 29 are wound on the drum until the rings 31 reach the rings of the leads 32, and since the first are larger than the second, the cables 29, pulling the leads 32, will be firmly connected to the ends of the forks 3. Hopper 1 from this moment on, it turns into a rolling table with a flexible cable cradle, ready for use. After the bundle of timber has been removed from the truck and prepared for its dismantling, the elevator 6, the end equalizer 7 and the pump station of the elevator 35 are turned on. Turning the winch drive 30 on and off, including reverse if necessary, the device operator unwinds the entire bundle of timber by feeding it through the nut 5 to the elevator 6. At the same time, on the elevator 6 and the end equalizer 7, a single-row dense brush of timber is formed, aligned at one end and strictly oriented with respect to the longitudinal axis of the device. The latter is achieved by the fact that at first on nut 5, any skewed timber finds itself, and then a continuous wall of the elevator 35, against which the timber board rests.

 The operation of the elevator 35, as well as the operation of the mechanism of piece delivery 8, is associated with the movement of the sorting carriage of the transverse sorting conveyor. The first is connected to it by two electrohydraulic control systems operating in manual and automatic modes, the second - rigidly through an intermittent mechanism such as the Maltese cross. A lift separates the timber from their transverse brush beforehand. At this moment, the operator can intervene at any time during the separation process. Timber enters the mechanism of piece delivery 8 that is rigidly kinematically connected with the movement of the sorting carriages 10 using a chain drive and an intermittent-type machine such as the Maltese cross. At the moment of approach of the carriage 10 to the mechanism of piece delivery 8, the next timber is laid on the carriage 10, the measuring machine or operator visually evaluates the sorted item, determines its size and puts this information into the sorting carriage 10. From the moment information about the item is received, the sorting carriage 10 from the place of order to the place of discharge of the item into the appropriate pocket - the drive 37 becomes the carrier of the item, information about it and the potential energy reserve necessary to free the carriage 10 from sortable about the subject.

 After the last log is delivered to the elevator slats 6 from the hopper 1, the forks 3 with hydraulic cylinders 4 are lowered to their original position, the rings 31 of the ropes 29 are put on the hooks fixed on the frame 25, the ropes 29 are thrown through the rollers, cantilever, fixed on the side walls of the forks (these structural elements of the device are not shown in the figures), the winch 30 and the drive of the movable platform 22 are turned on, the ropes 29 are pulled from the drum of the winch 30. Then the forks return to their original position, another engine and cycle of the device is repeated.

 The proposed device, along with self-unloading, can work like all existing ones, i.e., a bundle of timber can be fed into a fork by a forklift, crane or manipulator. After part (or one) of the storage pockets 37 is filled with sorted timber, sorting is stopped, the outriggers 27 are raised, the wheel drive 19 is turned on, and the whole device moves to a row of storage pockets 37 that is free from the timber. The outriggers 27 are lowered back to their shoes (the drive wheels of the device are equipped with electric brakes and therefore, when it stops above a number of pockets - drives, the entire device is rigidly fixed above it) and the device continues the sorting process. The row of pockets - drives, which is filled with sorted timber and which opened after the device moved to a new place of work, is released by a crane using a grab. Pockets can also be emptied using special sling containers.

 The proposed solution over the known has several advantages. It allows you to simplify the sorting complex, to make the sorting device independent of other mechanisms when loading it. Since the proposed device allows you to abandon the stationary sorting, remote conveyors, storage bins and galleries, their mechanisms and control systems, sorting complexes according to the invention become much cheaper.

Claims (4)

 1. A MOBILE DEVICE FOR SORTING ROUND FOREST MATERIALS AND PIECE DISASSEMBLY OF THEIR BUNDS, including an elevator, end face equalizer, piece delivery mechanism and a transverse sorting conveyor mounted on a common frame, mounted on an articulated and articulated wheel with a pivotally articulated axis to the longitudinal axis of the device, characterized in that, in order to expand the technological capabilities of the device by providing unloading cars esovozov, increase productivity and reliability, it is equipped with an additional frame, one end pivotally mounted on the device’s common frame and having a support shoe on the second end for support on the ground at the time of removal of the bundle of timber, and a hopper with movable and fixed walls, a cable bin placed on the additional frame a cradle and a nut located in the area of the elevator, while the movable wall of the hopper is made in the form of a fork with racks, placed on a movable platform, installed with To move on the additional frame of the device, the cable cradle with the free ends of the ropes is movably, for example, through leashes with rings at the ends, connected to the ends of the forks, and the fork racks have remotely controlled locks to connect and release the rings at the ends of the cables of the cable cradle during capture packs of timber on a truck and moving it into the hopper of the device.  2. The device according to claim 1, characterized in that, in order to combine the functions of the forks for unloading the trucks with the functions of the hopper for disassembling bundles of timber, the forks are fixed on their common with the uprights axis of rotation on a movable platform pivotally and eccentrically relative to this axis.  3. The device according to claim 1, characterized in that the ropes of the cable cradle have rings on the free ends, and the diameter of these rings is made more than the diameter of the rings at the ends of the leads through which the cables of the cable cradle are movably connected to the ends of the forks.  4. The device according to claim 1, characterized in that between the mechanism for disassembling the bundles of timber and the mechanism for the single issue of logs on the carriage of the transverse sorting conveyor, an additional log elevator is installed with a threshold for transmitting logs through it, and the drive is movably connected to the drive of the issue mechanism and the drive moving the carriages of the sorting conveyor, for example, using intermittent mechanisms such as the Maltese cross.

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