(57) Abstract:The loader contains an arrow in the form of a main beam and lever are pivotally attached to each other. Boom offset hinge mounting for the lever. The lever attached to the node joining the loader. The join node is made in the form of a quick-change device and has the ability to rotate. The drive of the lifting / lowering of the boom is made of a hydraulic cylinder, which is located on the back side of the lever main beam with respect to the cargo hook suspension. The longitudinal axis of the cylinder passes through the pivot point of the quick-change device. This increases the lifting height of the load with simultaneous protection of the lifting mechanism from damage when the load from swinging. 1 Il. The invention relates to the field of earth-moving machines, equipped with replaceable working equipment.Known loaders, containing an arrow with a cargo hanger comprising a hook, a drive lifting and Assembly attach the boom to the truck (see A. F. Bazanov and other "self-Propelled trucks): mechanical engineering, 1979, page 146, Fig. 68).The disadvantage of the truck is small, the height of the lifting boom, which orlena task of increasing the height of lifting with simultaneous protection of the lifting mechanism from damage during the swinging of the load with constant dynamic loads at different positions of the join node of the boom to the truck.The problem is solved in that in the truck containing the boom truck suspension, including the hook, the drive lifting and Assembly attach the boom to the truck, the boom is made of main beams and pivotally attached to the lever attached to the node joining the loader, made in the form of quick-release device attached to the loader can be rotated, while the main beam is shifted relative to the hinge mounting for the lever mechanism (actuator) for boom lift is made in the form of a hydraulic cylinder located on the back side of the lever main beam relative to the hook, and the longitudinal axis of the cylinder passes through the pivot point of the quick-change device.The invention is illustrated by the figure, which shows arrow, side view.The loader contains an arrow as the main beams 1 and arm 2. The main beam 1 and the arm 2 are connected by a hinge 3, on which the beam 1 is shifted by the value "A". The lever 2 is fixed on the holding device 4, which is secured to the truck with the possibility of rotation in the axis 5. By the end of the boom 1, the opposite end of which has a hook 6, is attached to the hydraulic cylinder of lifting (lowering) 7. Gerou turn the quick-change device 4, axis 5.The loader works as follows.When the retraction of the rod of the hydraulic cylinder 7 is rotated, the rise of the boom 1 with the load and the latter rises. Since the boom 1 is shifted upward by the amount "A" relative to the hinge 3 attaching it to the arm, increasing the height at which it is possible to raise the load. The location of the hydraulic cylinder 7 from the back side of the lever 2 main beams 3 protects it from damage when the load from swinging on the hook 6, and the fact that the longitudinal axis of the cylinder passes through the axis 5, provides a constant dynamic loads on the boom and loader at different positions of the device 4. The truck containing the boom truck suspension, including the hook, the drive of the lifting / lowering of the boom, the join node of the boom to the truck, wherein the bolt is made of main beams and pivotally attached to the lever attached to the node joining the loader, made in the form of a quick-change device attached to the loader can be rotated, while the main beam is shifted relative to the hinge mounting for the lever, the drive of the lifting / lowering of the boom is made in the form of a hydraulic cylinder, located reverse cell quick-change device.
FIELD: building, particularly devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving.
SUBSTANCE: device comprises vibratory plate fastened to frame by means of suspension cables and hydraulic cylinder. Frame is secured to backhoe shovel handle and may be turned with respect to the handle through +/-20 angle. Frame may be used as spreader by means of iron sheets secured to side surfaces thereof and by means of ribs formed in frame corners usage. The frame may have rests for vibratory plate fixation in upper position.
EFFECT: simplified soil compaction in trench and other difficult-to-access areas.
5 cl, 2 dwg
FIELD: agriculture and mining industry, in particular, loading equipment for farm tractors.
SUBSTANCE: loader is designed for farm tractors furnished with standard hydraulically controlled, parallel lifting levers 1, 2 pivotally mounted on tractor rear part and equipped with central connection device 3 in tractor between two lifting levers. Loader has two parallel levers 5, 6 for connection to respective levers 1, 2 so as to extend rearward, generally in longitudinal direction of axes of lifting levers 1, 2. Central tie-rod 7, which may be hydraulically extended during operation, protrudes to the outside from central connection device 3, in parallel with lifting levers. Levers 5, 6 and outer end of central tie-rod 7 are adapted for connection to working tool or device 12.
EFFECT: increased efficiency owing to enabling fast mounting of working equipment onto tractor, and reduced production costs.
8 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: invention is related to the field of machines intended for performance of earth and loading works, namely to machines such as single-bucket hydraulic diggers. Bearer frame of loader-digger working equipment comprises longitudinal beams with elements of bearer frame fixation on tractor, cross beams that are rigidly connected to longitudinal beams, bracket installed on upper bases of longitudinal beams with lugs that have openings in bushings for installation of rotary column of excavator equipment and hydraulic cylinders of its rotation, and brackets for installation of outriggers and hydraulic reservoir. Bracket is arranged from two vertical sides installed at the angle to each other, between which lugs are installed. Base of the lower lug is located on the same vertical level with lower edges of sides and is rigidly connected to upper bases of longitudinal beams, and also by means of two ribs with side surface of cross beam. Upper and middle lug are connected with rib, which is rigidly fixed to lower plane of upper lug and its bushing, and on the other side - with upper plane of middle lug in zone of openings for hydraulic cylinders of column rotation, at that bent sheet stands are connected to external sides of longitudinal beams, and these stands are also connected to sides of bracket, creating rigid space structure.
EFFECT: simplification of design and technology of loader-digger bearer frame manufacturing technology, reduction of nomenclature of roller stock rigging used in bearer frame design.
SUBSTANCE: snap-change device for fixation and forced leading, with automatic connection of tools with force closure to bearing implements and excavators includes one part of snap-change device, for instance fixture, where aligning disks are attached on fishing pins or in comparable centre of rotation across their axis. Aligning disks, at least partially, have curved, angular or straight peripheral line, which is distanced differently from axis of fishing pins. On mating part of snap-change device, for instance tool holder, there is at least one control plate attached, which enters zone of aligning disk motion, and curved peripheral line of aligning disk moves along its surface in process of entering. Shape and location of aligning disk relative to control plate are selected with the possibility of complete force or geometrical closure of snap-change device due to rotation around fishing pins only when they have achieved the lowest point in fishing hook.
EFFECT: prevention of warp or inclined position of snap-change device, damages in process of connection.
8 cl, 7 dwg
SUBSTANCE: support unit comprises the main body, having an upper end and a lower end, a hole for a shaft of a loading mechanism, stretching via the lower end of the specified main body, and two holes arranged at the distance from each other for eccentric fingers located in the specified upper end. Besides, the support unit comprises two eccentric fingers, every of which is placed into one of the specified holes, an accessory for synchronous rotation of the specified eccentric fingers and a cast item having an upper end and a lower end. At the same time on the specified lower end of the specified cast item there are upper trimming pads installed, being arranged as resting against the upper part of the bucket handle. The support unit also comprises two holes to receive threaded tubes located at the distance from each other in direction of handle displacement, two threaded tubes, every of which is inserted into one of the specified holes for receiving the tube, an accessory for rotation of the specified tubes and an accessory for fixation of the specified tubes. Besides, on each of the specified threaded tubes there are trimming pads installed.
EFFECT: reduced labour intensiveness and time for maintenance and extended service life of support unit assemblies.
12 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: proposed connector comprises retainer for attachment of working tool to the machine. Said retainer comprises retaining element and safety element. Said retaining element can displace from free position into locked position and vice versa. Safety element can displace retaining element from free position to locked position. At least, two hydraulic joints to be jointed together to make working fluid channel between the working tool pressurised fluid main line channel and machine pressurised fluid main line channel. There is a drive to displace said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint. Said drive is separated from the main pressurised working fluid main line. Machine comprises above described connector. In compliance with proposed method, working tool is attached to the machine so that hydraulic joints are leveled. Attachment by means of retainer including retaining element an safety element. Said safety element displaces retaining element from free position to locked position at pressure decreased by aforesaid drive and vice versa. Said drive displaces said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint.
EFFECT: higher efficiency.
15 cl, 6 dwg
SUBSTANCE: device comprises two parts, one of which is fixed on the machine boom, and the other one is fixed on the tool. The first part comprises a tray-shaped holder, installed as capable of insertion of the other part under the shaft, which has an expansion in the form of a hook equipped with at least one side finger for passage into holes of grooves in the first part and a locking plate sliding in the middle part of the first part for insertion under the hook under action of springs. The locking plate is equipped with a stop element, which limits the reverse travel of the specified plate so that matching of the specified holes of the grooves is prevented.
EFFECT: reliable connection.
4 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: group of inventions refers to quick-detachable connection device. The connection device is aimed at the connection of a primary drive element with an operating tool and comprises the first and the second connection units. The first connection unit comprises the first and the second support units and is attached to the primary drive element, the second connection unit comprises the first and the second units in the form of recesses aimed at the connection with the first and the second support units of the first connection unit and is attached to the operating tool. The connection units can be coupled to the first connection contact zone and the second connection contact zone located at a distance from the first connection contact zone. The device also comprises a rotary locking element attached to the first connection unit and able of rotation for smooth fixation of the first and second connection units in respect to each other.
EFFECT: improved efficiency of operating tool performance, reduced wear between connection components.
20 cl, 10 dwg
FIELD: machine building.
SUBSTANCE: group of inventions relates to wear shoe assembly for installation on bucket-type working tools. Working tool wear pad assembly, contains edge with one or several holes made in it. Assembly contains wear-resistant pad, mounting bracket, made with possibility of attachment to wear-resistant pad, quick release pin for wear-resistant pad assembly attachment to working element edge and free coupling. Mounting bracket comprises one or several pairs of coaxial holes for pin. Free coupling is made with possibility of filling-in gap between one or several coaxial holes and pin. Road construction machine with working tool, containing edge with one or several holes made in it, as well as containing, at least, one wear pad assembly.
EFFECT: technical result is wear pad assembly installation so, that it can be quickly attached to working member in changeable manner.
13 cl, 5 dwg
SUBSTANCE: crane (1) with at least one telescoping bracket (2) comprises a boom (3) and its extension (4) by means of a steering swivel (5) disposed on the boom extension (4), comprising two spaced-apart swivel pads (10), the working body (20) is fixed on the telescopic crane bracket (2), and hydraulic lines (6) lead from the boom (3) between the spaced-apart swivel pads (10) of the steering swivel (5) to the working body (20). In the end zone (41) of the boom extension (4), on which the steering swivel (5) is arranged, a guide (7) for the hydraulic lines (6) is provided, which guides them from the boom extension (4) to the zone (51) between the spaced-apart swivel pads (10) of the steering swivel (5). Fixing elements (8) for the hydraulic lines (6), between which the hydraulic lines (6) pass in the form of hydraulic hoses (9), are arranged on the boom (3) end (31) remote from the working body (20) and on the guide (7) end (71) remote from the working body (20).
EFFECT: crane improvement.
8 cl, 4 dwg