Tree harvesting machine
SUBSTANCE: machine comprises self-propelled chassis, on which by means of rotary roller bearing the rotating platform is mounted with the mechanism of its turn, operator's cab, power installation, a compartment with hydraulics, tanks for fuel and power fluid for the hydraulic system, hydraulic manipulator with a working body, and a counterweight mounted with the ability to move it relative to the rotating platform depending on the hydraulic manipulator swing. The counterweight is made in the form of a compartment with hydraulics, tanks for fuel and power fluid for the hydraulic system and the power installation mounted on a secondary platform with its ability to rotate around a horizontal axis in the vertical longitudinal plane of the machine by double-arm lever. The double-arm lever with its one arm is connected to the secondary platform, and with the other - to the hydraulic manipulator. The axes of rotation of the secondary platform and the double-arm lever are mounted on the rotating platform.
EFFECT: implementation enables to reduce the size and weight of the machine.
3 cl, 4 dwg
The invention relates to machines harvesting manipulator type and can be used in the forest industry and forestry.
Known harvesting machine, comprising a self-propelled chassis, which by means of pivot roller mounted rotary platform mechanism with its rotation, operator cabin, power unit, a compartment with hydraulic units, storage tanks for fuel and working fluid for the hydraulic system, a hydraulic manipulator with gripper-cutting device and the counterweight (Kossev VF Harvesting machine manipulator type. - M.: Forest industry, 1981, 248 S., see Fig.5 and p.40 3...14 lines from the top).
In the known machine logging counterweight stationary relative to the rotary platform and in this regard to ensure the stability of the machine when the maximum departure of the manipulator with gripper-cutting device counterbalance weight great that very weight machine.
Also known harvesting machine, comprising a self-propelled chassis, which by means of pivot roller mounted rotary platform mechanism with its rotation, operator cabin, power unit, a compartment with hydraulic units, storage tanks for fuel and working fluid for the hydraulic system, a hydraulic manipulator with gripper-sesaudi the device and the counterweight, installed with the possibility of movement relative to the rotary platform depending on departure manipulator (Misurkin P.M. Search construction forestry equipment. - Moscow: Publishing house of Saratov University. Saransk branch, 1990. - 304 S., see RIS on p.157 and line 1...6 bottom on PP 156 and line 1...2 on top p.157).
Known harvesting machine also has a counterweight that weight machine, and at the maximum departure of the manipulator increases the size of the back of the machine, which may hinder the rotation of the turntable when selective felling and thinning, which reduces the technological capabilities of the machine.
The technical result of the proposed machine logging is to reduce the size and weight of the machine.
The technical result is achieved in that in a harvesting machine, comprising a self-propelled chassis, which by means of pivot roller mounted rotary platform mechanism with its rotation, operator cabin, power unit, a compartment with hydraulic units, storage tanks for fuel and working fluid for the hydraulic system, a hydraulic manipulator with a working body, for example gripping-cutting device, and a counterweight mounted with the possibility of movement relative to the rotary platfo who we are depending on the departure of the manipulator, the novelty lies in the fact that the counterweight is made in the form of a compartment with hydraulic units, tanks for fuel and working fluid for the hydraulic system and power unit mounted on the supporting framework, with the possibility of rotation around the horizontal axis in the vertical longitudinal plane of the vehicle by means of two shoulders of the lever, one arm associated with the auxiliary platform and the other with a hydraulic manipulator, with the axis of rotation of the auxiliary platform and two shoulders of the lever is fixed on the rotary platform, and the two shoulders shoulder of the lever associated with the auxiliary platform made U-shaped, with U-shaped shoulder, two shoulders of the lever is made asymmetric relative to the longitudinal axis of the manipulator, and the counterweight can be performed consisting only of units of the hydraulic system and tanks.
Such constructive execution of the machine logging will be used as a counterweight units of the machine, which reduces the weight of the car, the installation of hydraulic units and tanks to the auxiliary platform, and the engine is on a rotary platform will allow you to remove them from each other, which will have a positive impact, for example, in case of fire, when reducing the departure of the manipulator, as it occurs, as a rule, with the load; an auxiliary platform h is cut two shoulders lever increases the force on the actuator of the manipulator, and all of the above increases the efficiency of the machine.
In the patent and scientific literature of a similar construction machine harvesting we have not identified.
Figure 1 shows a diagram of the machine logging, side view; figure 2 is the same, the end position two shoulders arm and manipulator; figure 3 is a view along arrow a in figure 2; figure 4 is a view along arrow B in figure 2, rotated.
Machine harvesting, including self-propelled chassis 1 on which is mounted by means of pivot roller 2 swivel platform 3 with the mechanism of its rotation around the vertical axis (not shown)which includes an operator's cab 4, the power unit 5, the compartment 6 with the hydraulic units, storage tanks for fuel and working fluid for the hydraulic system, hydraulic crane 7 working body 8 at its free end, for example, the gripping-cutting device. Compartment 6 and the power unit 5 is mounted on the supporting framework 9 can rotate around the axis 10, is mounted in the bracket 11, which is rigidly fixed on the rotary platform 3. Power unit 5 can be mounted on the rotary platform 3 and the compartment 6 on the supporting platform 9, and Vice versa that depends on the maximum load moment of the machine, since the supporting platform 9 with the mustache is set out on the units acts as a counterweight. On the rotary platform 3 by means of axis 12 and bracket 13 mounted two shoulders lever 14, the shoulder 15 which is made U-shaped, with the lever 14 from the compartment 6, and the other shoulder 16 with the arm 7. The shoulder 15 provided with rollers 17, paired with the guides 18, rigidly connected with the supporting platform 9. The shoulder 16 at the free end provided with a cross member 19 for contact with the arm 7. For the free rotation of the shoulder 16 in the arm is made through slot 20. The shoulder 15 is made asymmetric with respect to the shoulder 16, as part of the compartment 6 is located behind the operator's cab 4. The arm 7 is connected through the axis 21 with the rotary platform 3 and is provided with actuators 22, 23 and 24, for example by hydraulic cylinders.
Machine harvesting is as follows.
The operator controls the actuators 22, 23 and 24, and a rotation mechanism (not shown) of the rotary platform 3, changes the magnitude of the departure of the manipulator 7 and directs the working body 8 on the subject of work, such as tree 25, captures it, if necessary, cuts and moves in the desired location and stacks. Almost always changes the value of the load moment (tipping) of the manipulator 7, but since the hydraulic crane 7 is connected two shoulders lever 14 with the compartment 6 (contrast), then increasing departure of the manipulator 7 (increase opacity the surrounding of the time) the center of gravity of the compartment 6 will move away from the axis 21 of rotation of the manipulator 7 (see figure 1 and image dotted lines in figure 2) and thereby increase the magnitude of the stabilizing moment, and Vice versa. When the tightening and lifting of the object of labour by the manipulator 7, the center of gravity of the compartment 6 will, in addition to proximity to the axis 12, down and across the two shoulders lever 14 to increase the force of rotation of the manipulator 7.
Proposed harvesting machine allows you to use as opposed to units of the machine, without adding weight to its counterweight, the unit design of the hydraulic system on an additional platform, and the motor on the rotary platform and Vice versa allows you to increase the fire safety of the machine, while reducing the departure of the manipulator, and this happens usually with the load, additional platform through two shoulders lever increases the force on the actuator of the manipulator, and all of the above increases the efficiency of the machine logging.
1. Machine harvesting, including self-propelled chassis, through pivot roller mounted rotary platform mechanism with its rotation, operator cabin, power unit, compartment with hydraulic units, storage tanks for fuel and working fluid for the hydraulic system, hydraulic crane with a working body and a counterweight mounted with the possibility of its displacement is s relative to the rotary platform, depending on the departure of the manipulator, characterized in that the counterweight is made in the form of a compartment with hydraulic units, storage tanks for fuel and working fluid for the hydraulic system and power unit mounted on the supporting framework, with the possibility of rotation around the horizontal axis in the vertical longitudinal plane of the vehicle by means of two shoulders of the lever, one arm associated with the auxiliary platform and the other with a hydraulic manipulator, with the axis of rotation of the auxiliary platform and two shoulders of the lever is fixed on the rotary platform.
2. Machine according to claim 1, characterized in that the two shoulders shoulder of the lever associated with the auxiliary platform made U-shaped.
3. Machine according to claim 1 or 2, characterized in that the U-shaped shoulder, two shoulders of the lever is asymmetric relative to the longitudinal axis of the manipulator.
SUBSTANCE: pump-accumulator hydraulic drive to rotate an earth-mover platform comprises a controlled pump, hydraulic distributors, safety and check valves, a hydraulic accumulator, a relay controller, connected to each other by hydraulic manifolds, and a controlled hydromotor. At the same time one of hydraulic distributors is installed between the controlled pump and the controlled hydromotor of platform rotation. Safety valves are valves with two adjustment pressures. The second hydraulic distributor is arranged between the controlled pump and the first hydraulic distributor, serving to change power streams from the controlled hydraulic pump to the hydraulic accumulator.
EFFECT: maximum use of kinetic energy of a rotary platform, reduced wear and lower loads in a mechanism of earth-mover platform rotation, reduced quantity of hydraulic scheme elements.
FIELD: machine building.
SUBSTANCE: proposed device comprises first and second engine openings communication L' and N' for communication with two-way hydraulic motor D, and openings M' and O' for communication with manual-control valve H. Besides, valve device comprises normally-closed proportioning load-adjustment valve E and check valve 12 with outlet communicated with aforesaid second opening N' and inlet communicated with opening O'. Note here that check valve 12 is pre-stressed for opening solely in case its inlet exceeds preset pressure range.
EFFECT: higher reliability.
1 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: proposed device comprises first and second openings L and N in two-way hydraulic motor D, tank T, pump I, manual valve H and first retaining valve 1A, 8. Note here that manual valve is arranged to communicated openings L, N with tank T and pump I. Note here said valve H has two positions. In first position, pump I is communicated via pipeline F with first opening L while tank T communicates via pipeline G with second opening N. In second position, pump I communicates via pipeline G with second opening N while tank T is communicated via pipeline F with first opening L. Note here that first retaining valve 1A, 8 is arranged between pump I and second opening N to open toward second opening N. Besides, device comprises piston 2 to control first retaining vale 3 arranged to communicate first opening L with second opening N and to open toward second opening N.
EFFECT: higher efficiency.
9 cl, 6 dwg
SUBSTANCE: invention relates to machine building. Proposed machine tool comprises controlled drive structure to engage soil and work part driven by hydraulic actuator to make specific jobs, and control unit. Control unit comprises frame, steering device to control over structure engaging with soil, and manual control device to control hydraulic control valve. Control valve feeds hydraulic fluid at pressure to actuator of work part. Steering device comprises steering wheel with outer rim revolving relative to frame about axle for turning steering column aligned with steering wheel rotational axis. Steering column is engaged with structure engaging with soil to control tool on turns. Control device controls hub arranged inside steering wheel outer rim rotation boundary, and controller. Hub is locked relative to frame. Manual control device is arranged on hub to feed signal to controller for it to initiate hydraulic control valve.
EFFECT: simplified design.
12 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: method of controlling working mechanism includes the following stages: determination of maximum pressure of hydraulic fluid for independent fulfilment of certain task for, at least, one of operating functions; hydraulic fluid supply which pressure does not exceed certain maximum pressure for fulfilment of this operating function; and fluid pressure control with the aid of, at least, one control valve as pressure reducer connected with this operating function.
EFFECT: increase of operation efficiency in condition of large loads at mechanism operating component.
26 cl, 3 dwg
SUBSTANCE: caterpillar running gear comprises lower frame with carrying roller and central trunnion, caterpillars and running gear drive reduction gear. Note here that lower frame consists of two parts and is furnished with joint straps arranged in pairs on the frame opposite surfaces. Pairs of straps and both parts of the platform are bolted together. Caterpillar frames are bolted to lower frame. Running gear reduction gears are aligned on caterpillar frames at distance of 1/4 of lower frame width while carrying roller diameter-to-lower frame width makes 0.8-0.9.
EFFECT: higher stability, simplified servicing.
FIELD: machine building.
SUBSTANCE: proposed system comprises first assembly of actuators to control first hydraulic function, pump to feed hydraulic fluid at pressure into said actuators, electrically control valve to control pump discharge pressure by hydraulic signal, first pressure transducer to measure load pressure of the said first assembly of actuators, and control unit to receive signal containing data on load pressure measured by first pressure transducer and to generate control signal corresponding to first measured load pressure to be transmitted to said control valve. Note here that control unit allow determining required pump pressure so that difference between measured load pressure and pump pressure varies depending upon operating conditions.
EFFECT: higher efficiency of control.
18 cl, 3 dwg
SUBSTANCE: as per the first version, excavating element includes the first element equipped with a surface interacting with soil, the second element having a pin; lock installed with possibility of being rotated between the first element and the second element and provided with a slot into which the pin is to be installed. At that, the above lock has the possibility of being rotated between closed position in which the pin cannot leave the slot and the second position in which the pin can leave the slot so that the first element can be separated from the second element. As per the second version, excavating element includes the first element equipped with a surface interacting with soil and lock cavity fixing the sleeve installed in lock cavity with possibility of being locked and unlocked, the lock having the first slot and installed with possibility of being locked and unlocked by means of locking sleeve, as well as rotation relative to locking sleeve.
EFFECT: protection of excavating element against wear, and improvement of excavation efficiency.
26 cl, 32 dwg
FIELD: machine building.
SUBSTANCE: proposed system comprises, at least, one hydraulic cylinder to handle cargoes, accumulator and valve to control flows between said cylinder and said accumulator. Note here that said system comprises first control valves arranged on tube connected to hydraulic cylinder piston side, second control valve arranged on tube connected to cylinder rod side, first hydraulic cylinder pressure transducer, second accumulator pressure transducer, and control unit. Note also that control unit receives signals containing data on pressures measured by aforesaid transducers and to generate signals to control damping control functions. Invention covers also method of damping working tool comprising measuring accumulator and hydraulic cylinder pressures, and controlling damping functions in compliance with measured pressures. Note here that pressures between accumulator and cylinder piston are equalised and flow between accumulator and tank are controlled by control valve arranged on tube secured to hydraulic cylinder piston side.
EFFECT: higher efficiency.
37 cl, 2 dwg
SUBSTANCE: shank-type cutter with base part includes shank; at that, shank carries the top of cutter made from hard-alloy material, and base part in the zone between shank and cutter top has the receiving section in which the head part is retained. Head part includes circumferential surface for removal of the cut material, which converges in the direction of the cutter top. At that, as per the first version, the head part is retained relative to the base part with possibility of being turned, and surface for removal of the cut material ends in the area of the base part end receiving the cutter top. As per the second version, head part has limit stop (support section) and/or mating surface, which restricts the erection movement of the head part on base part on support surface of the base part. As per the third version, base part has a clamping sleeve in the area of the shank. At that, head part is put on clamping sleeve, and at that, head part retains the clamping sleeve in pre-load position.
EFFECT: reducing the costs for elements at optimised wear.
12 cl, 4 dwg
SUBSTANCE: claw-like felling unit of a tree harvesting machine mounted on a manipulator of the latter comprises a housing. On the housing two hydraulically controlled grips and a sawing machine are mounted spaced in height. The device is equipped with a mechanism for non-clamping work of the sawing machine. The mechanism comprises a slide mounted in a vertical housing cavity with the possibility of its reciprocation. Between the slide and the upper cavity wall an elastic element is located, such as a compression spring, and at the bottom the slider is rigidly connected to the rod with the ability to move the latter along the guides made in the lower wall of the cavity, and outside of the latter it is provided with a base plate.
EFFECT: implementation enables to enhance the technological capabilities of the device, to increase performance and reliability in operation.
SUBSTANCE: system for mass tree cutting comprises a harvester head having a housing equipped with a means of supply, delimbing means, cutting device and at least one element of equipment for mass cutting. The equipment for mass cutting is made with the ability to form in a harvester head of at least one delimbing means for simultaneous collecting and manipulation of more than one, preferably vertically oriented, tree. The equipment comprises means formed with at least two parts connected together with an axis and articulated with the housing of the harvester head. The said means comprises a connecting axis to install it with the ability to rotate on the housing of the harvester head, the root knife protruding from the said connecting axis, and the upper knife articulated with the root knife. The method of mass tree cutting, which uses harvester head for collection and manipulation of one or more trees simultaneously is characterised in that at the capture of the first tree the means of supply and the delimbing means are opened for receiving it, at least the said delimbing means are pressed against a tree, and the tree is cut out with the cutting device, and at capture of subsequent trees the first control command is given to open the means which crimp the tree, and the equipment elements for mass cutting are opened for receiving the tree, except delimbing means, then the second control command is given for closing at least fixed other delimbing means to crimp trees in the harvester head, and to open the equipment elements with their subsequent closure, one by one, to ensure the movement of root knives and upper knives provided in the equipment for mass cutting trees in the position in which they crimp trees collected in the harvester head, and then the tree is cut.
EFFECT: invention enables to manipulate simultaneously more than one tree with conventional harvester head used for felling and supply of tree trunks.
12 cl, 17 dwg
FIELD: machine building.
SUBSTANCE: feed wheel for trunks comprises lines of drive teeth. Lines of drive teeth extend from elongated supports. Said supports are arranged along the circle, around wheel peripheral surface. Note here that supports located nearby on periphery diverge in wheel lateral direction.
EFFECT: ruled out accumulation of bark and wood wastes on feed wheels.
6 cl, 4 dwg
SUBSTANCE: proposed machine comprises self-propelled chassis supporting rotary platform with manipulator and platform drive fitted on rotary roller cradle to turn horizontally relative to chassis frame. Manipulator free end is equipped with gripping cutter. Bunching device comprises drum to wind load bearing rope. Rope free end of furnished with hook. Bunching device drum is arranged horizontally on chassis frame. Drum is equipped with rotation drive comprises extra drum. The latter is arranged aligned with first drum and furnished with helical spring and moving ratchet. One end of extra rope is fastened on extra drum while its opposite end has loop to be clamped by gripping cutter for forced unwinding from extra drum.
EFFECT: higher stability, decreased manual labor input, higher efficiency and reliability.
2 cl, 3 dwg
SUBSTANCE: machine comprises a self-propelled chassis on which the technological equipment is mounted. The technological equipment includes a manipulator. At the free end of the manipulator a gripping-shearing device is mounted with clamp hooks, mounted in pairs on the unit housing in two planes. The machine is equipped with a device to separate the branches of trees. The device for separation of branches of trees includes a telescopic rack mounted on the housing of the gripping-shearing device with actuators-hydraulic cylinders of extension the telescopic rack sections. At the upper ends of the extension sections the arched separators of branches are fixed.
EFFECT: improved reliability of the machine work, its stability and performance.
2 cl, 2 dwg
SUBSTANCE: method to produce wood chips at a felling site includes gripping a package of felling waste, its delivery to a chipping device, grinding of felling wastes into wood chips and its concentration in the body of the mobile chipping machine. Prior to wood chips delivery into the body, a container is placed in it, where a portion of wood chips is accumulated. After accumulation the container is unloaded from the body near the skid, and another container is supplied into the body. Cycles of wood chips accumulation and unloading in containers are repeated. Then, using a pickup shipper, containers filled with wood chips are collected and transported to a loading site.
EFFECT: time expenditures for transportation of wood chips to the unloading site are reduced.
SUBSTANCE: invention relates to tree harvesters, namely, to handling devices. The handling device is connected to a swiveling unit of base machine by means of a hinged joint and comprises a boom, a handle jointed with this boom by means of hinged connection, operating element coupled with the said handle by means of hinged connection and control system. The control system includes hydro cylinders of boom drive, one hydro cylinder of handle drive and a hydro cylinder of the operating element drive. The boom drive hydro cylinders are installed on a beam. In addition, one end of the beam is connected to the swiveling part of base machine by means of hinge connection, while the other end rests on a drive controlled wheel.
EFFECT: increased sweep of handling device and improved stability of base machine.
FIELD: machine building.
SUBSTANCE: procedure for control over power source of tree crop harvester consists in direct or indirect actuating one or more working devices and/or manipulator devices by means a power source. The devices are installed in the tree crop harvester and are controlled with control facilities. The control facilities generate a control command influencing state of functioning to one or more working devices or manipulator devices. The control command is repeatedly transmitted to the power source. The said repeated analogue control command facilitates change of power source functioning. Change is executed before operation of the working device and/or operating devices so, that the repeated control command influences at least one parametre of power source control at least for a short time advancing successive power source loading.
EFFECT: raised efficiency of hydro-static power transmission.
11 cl, 3 dwg
SUBSTANCE: machine comprises a motor vehicle chassis with a full-circle platform installed on it. The following components are mounted on the platform - an operator's cabin, an engine, hydraulic system sets, a manipulator, a balancing weight and a mechanism of balancing weight movement relative to the full-circle platform. The balancing weight in the form of an engine and hydraulic system sets on the auxiliary platform with the possibility of its movement in the horizontal plane along longitudinal guides. Longitudinal guides are rigidly fixed on the full-circle platform. The mechanism of balancing weight movement is made of a yoke, which is hingedly installed on the bracket, which is rigidly fixed on the full-circle platform. The yoke with its front arm is hingedly via a traction rod is connected to a manipulator, and with its back arm is hingedly via a traction rod connected to the balancing weight.
EFFECT: reduced weight of the machine, increased stability during process operations, and as a result, higher reliability in operation.
2 cl, 2 dwg
SUBSTANCE: invention relates to long largo carriers used in logging industry, particularly, to log carriers. Proposed log carrier comprises full-track 1, full-track frame 2 accommodating manipulator 3 and cargo platform. Frame 5 of the latter is provided with roller 6 with its axle fixed at frame rear so that outer roll surface of roller 6 is located under platform frame top surface. Central part of cargo platform 3 has roller 7 fitted in frame 8 pivoted to frame 2 and provided with turning hydraulic drive made up of several parallel hydraulic cylinders with their one ends secured on frame 2 and other ends secured to frame 8.
EFFECT: higher efficiency.
FIELD: lumbering processes and equipment, possibly felling procedures in mountains.
SUBSTANCE: robot includes platform with movable supports, rotary circle, manipulator with gripping and cutting off apparatus. Circular platform is joined with working support in the form of telescopic hydraulic cylinder whose rod is joined with supporting site. Upper portion of housing of working support is joined with movable wheel and with rod of motion cylinder. Circular platform has groove provided with right and left branches at both sides. Tumbling stop and movable wheel of working support are mounted in said groove. Tumbling stop may close at once right and left branches of groove or it may close one branch and then other branch. Three walking supports are jointly mounted at mutual spacing by angles 120° on edges of circular platform. Said walking supports are in the form of hydraulic cylinders whose rods are joined with cone site. Housing of each walking support is jointly connected with two rods of additional hydraulic cylinders and simultaneously it is jointly mounted on circular platform. In upper portion of circular platform on rotary circle power drive unit of robot is mounted. Said drive unit is provided with control system. Manipulator with gripping and cutting off organ is joined with rotary circle through two vertical hydraulic cylinders. Manipulator has automatic system for searching tree and tactile pickups mounted on gripping and cutting off organ for providing necessary effort of gripping tree and cutting it off.
EFFECT: enhanced efficiency and safety of felling process in mountains.
2 cl, 6 dwg, 1 tbl