76 results about "Woodchipper" patented technology

The invention discloses a composite fibreboard of psammophyte bush. A manual fast-growing forest timber is mixed in the psammophyte bush to prepare mixed fibre by a mixed jordaning method; and the mixed fibre reduces the bark content of the psammophyte bush and improves the fibre quality of the psammophyte bush, thereby improving the quality of the fibreboard. The invention also provides a method for manufacturing the composite fibreboard of the psammophyte bush; the method comprises the main steps: (1) material preparation; (2) hot grinding; (3) adhesive application and drying; (4) pavement; (5) hot pressing; (6) edge trimming, and other working procedures; in the material preparation section, wooden chips of the psammophyte bush with length of more than 10 cm are controlled within 5 percent; or the psammophyte bush is cut into small sections of crabsticks with the length of between 1.5 and 5.0 cm; and the wood chips or the crabsticks and the wood chips of the fast-growing forest timber are mixed to solve the problems that uncut strips of the psammophyte bush wind a cutter wheel of a drum-type chipper and block a tub wheel and a screen, and the like.

A wood chipper includes an engine and a cutting assembly. A rotatable feed wheel and a gap-bounding member define therebetween an adjustable gap through which feed material moves toward the cutting assembly. An electronic control unit (ECU) controls force applied to the feed wheel or gap-bounding member toward the feed material in response to an operational condition of the wood chipper. The ECU can maintain or vary the force in any desired manner. One option is to apply the force with a pulsating mechanism in a pulsating manner to enhance the feeding procedure. The pulsating mechanism is in communication with a sensor from which the ECU receives signals typically indicating an operational speed of the cutting assembly or the engine. An ECU logic circuit permits the pulsating force only if the operational speed exceeds a predetermined threshold.

A versatile mobile utility cart or vehicle using either tracks, wheels or both for suspension and steering with propulsion coming from but not limited to an internal combustion engine or an electric motor. The vehicle is meant to be a utility workhorse with the ability to load and unload itself as well as drag or carry materials. The vehicle can be configured in many ways to do many tasks with the main feature being labor savings. One of the unique features of the vehicle is a loading system called a fork and foot system. For transport the forks and feet system can be raised or detached individually or as a system, this is beneficial when unloading. The foot may remain attached and used for stability. Detaching the fork and foot system as a system allows the vehicle to be used for other tasks including but not limited to: a dump vehicle; a skidder; a reel carrier; a fork lift/carrier; and a prime mover or base for brush chippers, stump cutters, tree spades and more.

An assist assembly for an infeed pan of a wood chipper includes at least one assist mount adapted to be connected to the wood chipper. The assist assembly also includes at least one assist member connected to the assist mount and adapted to operatively engage the infeed pan to assist an operator in handling a bulk weight of the infeed pan when the infeed pan is raised and lowered by the operator.

A chipper knife (4) for mounting to a rotatable chipper head (7) includes a body having first and second cutting edges (9), a continuous chip deflecting and shaping surface (13) extending between the first and second cutting edges, and a mounting portion to permit the body to be mounted to the rotatable chipper head for rotation in a rotary direction.

A log and/or tree chipper has an individual feed chain tension system for multiple chains. A mechanism is provided for quick and easy independent adjustment for differences in chain length. Therefore, if a tail pulley is damaged, one section can be repaired while not requiring all of the drag chains to be split and the whole tail pulley removed. To keep the adjustment from moving out of adjustment after the adjusting step, a push bolt lock slips over adjusting bolts and the push bolt lock can be held in place with lynch pins.

A feed system for a woodchipper including a material-interface member for feeding material into a chipping mechanism of the woodchipper, an actuator for moving a material-interface member into interfacing and non-interfacing positions with the material, a sensor for detecting an operational parameter of the woodchipper, and a controller to direct the actuator. The controller operates by receiving the operational parameter of the woodchipper, establishing a normative operating value, and determining if the woodchipper is a first status or a second status based on a comparison between the operational parameter and the normative operating value. If the woodchipper is a first status, the controller instructs the actuator to move the material-interface member into the interfacing position. If the woodchipper is a second status, moving the material-interface member into a non-interfacing position.

A wood chipper comprises a frame, an infeed system, a rotatable cutting system, and at least one feed wheel disposed between the infeed system and the cutting system to feed wood material to the cutting system. The wood chipper also includes a winch comprising a winch line having a first end, and a collar disposed adjacent the first end of the winch line. The wood chipper further includes a detector adapted to detect a first and a second position of the winch line, wherein the detector is adapted to allow operation of the at least one feed wheel and prohibit operation of the winch when the first position of the winch line is detected, and to allow operation of the winch and allow operation of the at least one feed wheel in a predefined manner when the second position is detected. The wood chipper further comprises a bypass for operation of the at least one feed wheel.

The invention discloses an ultra-strong shaving board production process. The ultra-strong shaving board production process comprises the steps that (1), raw materials are chipped and conveyed to a swing screen, and metal components are excluded in the conveying process; (2), after the swing screen screens the raw materials, large wood chips are returned to a chipping machine for reprocessing, andthe qualified wood chips enter a wood chip stock bin and then enter a transition stock bin; (3), after the wood chips are flaked, the wood chips enter a wet shavings stock bin; (4), wet shavings arepreheated through a preheating pipeline and then enter a dryer for drying; (5), after drying, the shavings are subjected to dust removal through a cyclone dust collector, and then the shavings are separated through a material separation device and enter a three-layer shavings screen for screening; and (6), the three-layer shavings screen screens out large shavings, qualified core layer shavings and qualified skin layer shavings. By the adoption of the ultra-strong shaving board production process, the static bending strength and the inner gluing strength of shaving boards are greatly improved,the physical and mechanical properties are improved, the density is relatively reduced, raw materials are saved compared with similar products, the cost input is reduced, the energy consumption is reduced, and the function of saving glue is achieved.

The invention relates to safety improvements for mowers incorporating a chipper, and/or catcher. In one aspect the invention provides safety improvements that only allow operation of the chipper when the mower is below a predetermined threshold ride height. In another aspect, the mower includes one or more side skirts to prevent body parts from entering the cutting zone under the mower. In a still further aspect, the mower has a rear flap including a sub-flap. The mower is arranged so that the sub flap remains closed when a catcher is installed.

The invention discloses a crushing method for recycling bark resources, which comprises the following steps of: (1) collecting barks and conveying to a belt conveyer; (2) conveying the barks to bark crushing equipment by using the belt conveyer; and (3) crushing the barks by using a drum chipper, and conveying the barks to a bark storehouse through the belt conveyer. By adopting the drum chipper, the bark crushing capacity and efficiency can be improved, the energy consumption can be reduced, particularly longer barks which contain bast fibers and are high in toughness and hardly crushed by the conventional crusher can be treated, and the energy consumption is reduced greatly.

The invention relates to chipping machine, in particular to a knife chain type chipping machine which can cut small-diameter wood into various thicknesses and lengths of ships and thin wood shavings. The knife chain type chipping machine is characterized in that a surrounding knife chain type cutting mechanism is adopted, so that the simultaneous transverse cutting of dozens and hundreds of chipping knives is realized, and the knife chain type chipping machine can be used for cutting thick chips and can also be used for chipping the thin wood shavings. In the using process, raw materials are sawn into wood segments, and then the wood segments are sent to the chipping machine through a transport machine continuously; the wood segments and the chipping knives form a chipping angle with least resistance, and the thicknesses of the wood segments are 2-5mm; the secondary processing and steaming time is short, and the process of chipping the thick chips into the thin wood shavings can be saved. Compared with the chipping machine on the market, the knife chain type chipping machine can save more than 30 percent of electricity, and the chips and wood shavings can keep an intact fiber morphology.

A disc cutting apparatus for chipping wood chips from a log includes a chipper frame, a rotary cutting disc having a plurality of substantially radially disposed knife assemblies in relation to a proximal facing side of the disc and a feed spout into which a log is fed into the chipper apparatus. The apparatus further includes a bedknife, the bedknife having a first surface and an opposing second surface that is nonparallel to the first surface such that a wedge is produced between the first surface and the second surface for fitting within a corresponding nonparallel gap in the chipper frame. The bedknife further includes at least one secondary trimming edge for more complete reduction of wood chipped and for reducing the size of slivers formed.

A chipper truck and trailer assembly for tree trimming and removal includes a truck having a cab and a bed frame. The truck also has a chipper box mounted thereon and open at an end thereof. A trailer is removably connected to the end of the truck adjacent the open end of the chipper box and maintains thereon a chipper unit with a feed chute and a discharge chute. The feed and discharge chutes are at an obtuse angle to each other such that operator may stand alongside the trailer, rather than behind it. The discharge chute is directed into the chip box. A drive shaft interconnects an auxiliary PTO taken from the truck transmission and a power input to the chipper unit.

The invention relates to a chipper knife with at least one cutting edge (6) along at least one of its side edges. The chipper knife is adapted to be mounted in chippers of the kind which are used to cut chips of a desired size and shape from pieces of wood or timber (7) and which comprise a tool, in the form of a plane or conical disc, which is arranged for rotation about an axis of rotation and on which a plurality of such chipper knifes (2) are mountable in such manner that one end of the cutting edge of the chipper knife is located closer to the axis of rotation of the tool than the opposite end of the cutting edge. The cutting edge (6) of the chipper knife is formed between a timber-guiding surface and a chip-guiding surface, the timber-guiding surface having a varying angle along its length in relation to a plane of rotation in such a way that the angle is greater at the end of the cutting edge located closest to the axis of rotation decreases in the outward direction. The chip-guiding surface of the chipper knife also has a varying angle along its length in relation to a plane of rotation in such a way that the angle is smaller at the end of the cutting edge located closest to the axis of rotation and increases in the outward direction in order to obtain a cutting edge angle between the timber-guiding surface and the chip-guiding surface (13) that is essentially constant along the whole length of the cutting edge.