Jaw tractor loader
(57) Abstract:The invention is intended for lifting and lowering the loading of long loads, such as whips and logs, and can be used in the forest industry and in other industries, where the cargo is loaded trailer. The technical result is to simplify the design of the hydraulic drive, control and reduction of dynamic loads acting on the attached equipment and the base car truck. Jaw tractor loader contains basic machine, equipped with a gripper body frame, hinged to the base, mounted on the chassis base of the machine, and the hydraulic drive. The cylinders can be rotated frame relative to the base and cylinders to rotate the base frame relative to the housing base of the machine have a common inlet and drain line and different directions of action. With the possible lifting of the provisions set in the unload position torque of the hydraulic cylinders to rotate the frame relative to the base more torque hydraulic cylinders to rotate the base frame relative to the housing base of the machine. 1 Il. Famous jaw tractor loader for loading long-size material on the vehicle (A. C. 173654, B 66 23/54, 1963).The specified loader transfers a cargo of provisions set in the unload position using a turntable driven by two pairs of hydraulic cylinders, the rod of which is pivotally connected by means of the rotary axis frame T-shaped rocker.The path of movement of goods is determined by the radius of rotation of the frame, a hinge mounted on a fixed base.When lifting and lowering the load has a constant radius of rotation, which complicates the design and reduces the efficiency of the hydraulic drive of the truck.The closest to the essential features is the jaw tractor loader, which includes the basic machine, rotatable in a vertical plane and provided with a gripping body frame, a hinge mounted on the swivel base mounted on the chassis base of the machine and the hydraulic actuator (A. C. 288663, 65 G 67/12, 65 G 67/02, 1969).The specified loader about the th construction and increase the efficiency of the hydraulic drive.The disadvantage of this design is that the transfer of cargo from the position set in the position of the unloading is performed by switching the cylinders, torque the swing frame relative to the rotary Foundation, and cylinders, rotating swivel base with swivel frame relative to the housing base of the machine.To switch cylinders required two separate control systems, go automatic device that monitors the sequence of their work, which complicates the design of the hydraulic drive and control system.In addition, at the time of switching cylinder stops rotating frame with the load, which leads to dynamic loads affecting attachments and basic machine loader.The main objective of the invention is to simplify the construction of the hydraulic drive, control and reduction of dynamic loads acting on attachments and basic machine loader.To achieve the objectives of the cylinders to rotate the frame relative to the base and cylinders to rotate the base frame carries the action, and the sequence of their operation is achieved by the fact that when the lifting of the provisions set in the unload position torque M1when the first hydraulic cylinders more torque2second hydraulic cylinders, i.e.M1=P1H1>M2=P2H2,
where R1- the force developed by the hydraulic cylinders to rotate the frame relative to the base;
P2- the force developed by the hydraulic cylinders to rotate the base frame relative to the housing base of the machine;
H1and H2- shoulders action hydraulic cylinders.In relation to similar proposed device has the following distinctive features.The cylinders can be rotated frame relative to the base and cylinders to rotate the base frame relative to the housing base of the machine have a common inlet and the drain line, and when the lifting of the provisions set in the unload position torque of the hydraulic cylinders to rotate the frame relative to the base more torque hydraulic cylinders to rotate the base frame relative to the housing base of the machine.
FIELD: railroad transport, particularly for loading or unloading vehicles.
SUBSTANCE: device has housing 1, support 2 for sleeper, fixers 2 to retain sleepers in predetermined position and cross-arm 4 connected to the housing through flexible tie. Support and fixers are installed on the body and directed to engage the first ends of the sleepers. Each fixer is adapted to engage one sleeper. Flexible tie is made as single polyspast system with lock made as telescopic couple. The telescopic couple includes guiding bush with stop and screw rack. Device engages a number of sleepers directly from accumulation conveyer of production line, reliably holds the sleepers and loads thereof in vertical direction in gondola wagon along wagon sides.
EFFECT: increased efficiency and reduced labor inputs.
3 cl, 5 dwg
FIELD: mechanical engineering; materials handling facilities.
SUBSTANCE: invention relates to method of pipe loading into freight car. According to proposed method, stack of pipes if placed so that at least one pipe thrust against one end face shield 2, and at least one pipe thrust against other ends face shield 3, and gaskets 6 made of sticky material sensitive to pressure are placed between rows of pipes. According to one of versions of proposed method at least one first row of pipes is placed to thrust one and against end face shield of freight car, and other end of this row of pipes is arranged at a distance from other end face shield of freight car, and at least one second row of pipes is placed so that its one end is arranged at a distance from end face shield against which first row of pipes thrust, and other end of said row thrusts according against opposite end face shield.
EFFECT: provision of reliable axial fixing of pipes, increased capacity and reduced labor input at increase in economy.
9 cl, 1 dwg
SUBSTANCE: invention relates to laying cylinder-shape cargoes on railway platforms or cars. Proposed method of laying, preferably, pipes into railway car furnished with slides (7) and mounted on at least two bogies with slides (8) arranged with a gap between car and bogie slides comprises laying pipes in at least one row starting from one of the car lengthwise edges (2) towards the opposite edge. Row pipes are laud without locking by retainers unless the distance from common center of gravity of laid pipes to the plane running through car lengthwise axis of symmetry exceeds or equals 0.5 diametre of smaller laid pipes. Then if required, pipes are locked by retainers, and other pipe rows are laid.
EFFECT: reduced loading interval, reliable locking of laid pipes.
3 cl, 1 dwg
SUBSTANCE: invention relates to wood handling equipment and can be used in forest industry and other industrial branches wherein long-cut materials are handled. Caterpillar clamp grapple log loader comprises primary machine equipped with frame furnished with gripper and hinged on to the foundation hinged to primary machine body, hydraulic cylinders to turn the frame with gripper relative to rotary foundation and hydraulic cylinders to turn the frame relative to primary machine body. Both hydraulic cylinders have pressure and discharge limes. Primary machine body incorporates supports for rotary foundation gripper and load to rest on relative to rotary foundation in turning from load gripping position into transport position and back.
EFFECT: higher reliability and efficiency.
SUBSTANCE: stack of tubes is laid on platform car consisting of interconnected by lengthwise and crosswise beams 1 and 2 and comprises two bundles of tubes laid in lines. At least, one tube of, at least, on bundle is displaced relative to other tubes of the bundle in lengthwise direction toward the other bundle to come in contact therewith via safety element, and, at least, one tube of, at least, one bundle is displaced toward platform edge. Horizontal distance between opposite faces of tubes in bundle defines bundle length that makes not over 0.8 of platform car length. At least, one tube on top line of, at least, one bundle, is displaced in lengthwise direction toward the other bundle to locate its ends on both bundles. With tubes in each bundle displaced toward the other bundle, at least, one tube arranged symmetrically is displaced. Any line if formed by, at least, one tube.
EFFECT: reliable fixation of tubes on platform car, reduced forces of tube fixation.
13 cl, 5 dwg