The supporting frame work equipment hydraulic excavator on the basis of a wheeled tractor
(57) Abstract:Usage: the excavation and loading operations. The inventive carrier frame includes longitudinal beams, a transverse beam supporting the head with coupling sockets and brackets under the outriggers. The supporting cylinder made of sheet frame, bracket and additional lugs. The frame is bent with the formation of the rear wall and the side cheeks. The latter are at an obtuse angle to the rear wall and welded to the sides of the rear ends of the longitudinal beams. The bracket is located one under the other eye. The basis of the bottom lugs mounted on the supporting ribs transverse beams and welded thereto. The base of the lugs of the bracket supporting heads are located on the inner side of the frame and welded to it, and the vertices are passed through openings in the back wall. To the side edges of the bases of the lugs of the bracket is welded to the vertical plate parallel to the cheeks and welded to them. The basis of the additional lugs mounted on the frame and welded to it. The tops of the lugs posted by coupling socket under the rotary column and rams her control. 6 Il. The invention relates to machines pred excavators.Known frame of the working equipment hydraulic excavator on the basis of a wheeled tractor. It contains longitudinal beam elements to attach the frame to the tractor, a transverse beam supporting the head with the stub nests under the rotary column operating equipment and hydraulic drive units of its rotation and welded brackets for hydraulic outriggers  . With proper design reliability this frame, first, can not be used under operating equipment, rotary column which is operated by hydraulic cylinders, and, secondly, it contains many details that in the manufacture require fairly accurate operations for bending sheet material.The aim of the invention is to simplify the technology frame work equipment with its control rotary speakers with the help of hydraulic cylinders.This is achieved by the fact that in the frame of the working equipment hydraulic excavator containing the longitudinal beam, cross beam, a support cylinder with sleeve slots rotary column and waterworks management, bearing head is made of sheet frame, sognato to the sides of the rear ends of the longitudinal beams, from a bracket having spaced one below the other eye, the basis of the lower of which is mounted on the supporting ribs transverse beams and welded thereto, the base both are located on the inner side of the frame and welded to it, and the vertices are passed through openings in the rear wall, and welded to the side edges of the bases of the lugs vertical plates, which are parallel to the cheeks and welded thereto, and additional lugs, the base being mounted on the frame and welded to it. The tops of the lugs posted by coupling socket under the rotary column and the cylinders of her office.In Fig.1 shows a frame structure of the working equipment hydraulic excavator, side view; Fig.2 - the same, top view; Fig.3 - support the head support frame, side view; Fig.4 is a top view of Fig.5 - the same, rear view; Fig.6 - section a-a in Fig.3.The supporting frame work equipment hydraulic excavator contains the longitudinal beams 1 and 2, the transverse beam 3, the anchor head 4 and the bracket 5 and 6 of the hydraulically operated outriggers. Beams 1 and 2 have elements 7 and 8 for mounting the carrier frame mounted on a wheeled tractor. Beam 3 is attached to the inner sides of the rear ends 715, 16 to install the rotary column operating equipment and cylinders its management. The brackets 5 and 6 are attached to the base cylinder 4. On beam 3 cross her fixed supporting ribs 17, 18, 19, which protrude above the upper sides of the beams 3 and the ends 9 and 10 of the beams 1 and 2. To the outer sides of the ends 9 and 10 of the beams 1 and 2 attached vertical sheet sidewall 20 and 21.Bearing head 4 contains leaf frame 22, the bracket 23 with the plate lugs 24 and 25 and an additional sheet eyelet 26. The frame 22 is bent with the formation of vertically oriented rear wall 27, which is parallel to the beam 3, and the side cheeks 28 and 29, which are arranged at obtuse angles to the wall 27. The lugs 24 and 25 are arranged horizontally one below the other and made curly. The base 30 and 31 of the bottom 24 and top 25 eyelets are located on the inner side of the frame 22 and is attached thereto. Peaks 32 and 33 of the lugs 24 and 25 are passed through the slots 34 and 35 in the wall 27. The bracket 23 in addition to the lugs 24 and 25 includes a vertical plates 36 and 37 which are parallel to the cheeks 28 and 29. The eyelet 26 base 38 secured to the frame 22. On the peaks 32 and 33 of the lugs 24 and 25 are placed spaced apart on either side of the middle vertical plane of the supporting frame storsley on the peaks 32 and 39 of the lugs 24 and 26.When the Assembly of individual components and the supporting frame as a whole is the following. Beam 3 with their ends welded to the inner sides of the rear ends 7 and 8 of the beams 1 and 2. The supporting ribs 17, 18 and 19 are welded to the beam 3. When assembling the bracket 23 of the plates 36 and 37 are welded upper and lower edges to the side edges of the bases 30 and 31 of the lugs 24 and 25. When assembling the anchor head 4 of the base 30 and 31 of the lugs 24 and 25 of the bracket 23 welded to the frame 22, and the plates 36 and 37 to the inner sides of the cheeks 28 and 29 of their last 22. The base 38 of the lugs 26 is mounted at the upper edge of the frame 22 and is welded thereto. When assembling the frame side cheeks 28 and 29 of the frame 22 supporting the head 4 of the lower parts are welded to the outer sides of the sidewalls 20 and 21 of the rear ends 9 and 10 of the beams 1 and 2. The base 30 of the lugs 24 of the support head 4 is mounted on the supporting ribs 16, 17 and 18 and is welded thereto. The brackets 5 and 6 are welded to the outer sides of the lower parts of the cheeks 28 and 29 of the frame 22 supporting head 4 and to the lower sides of the rear ends 7 and 8 of the beams 1 and 2. The SUPPORTING FRAME WORK EQUIPMENT HYDRAULIC EXCAVATOR ON the BASIS of a WHEELED TRACTOR, comprising a longitudinal beam elements for mounting the support frame on the tractor, cross the arena to the cross beam and has a coupling socket for installing the rotary column operating equipment and waterworks management, and welded the brackets to install hydraulically operated outriggers, wherein the transverse beam is supplied welded to the supporting ribs, which are located across the beams and the upper edges protrude above it and above the rear ends of the longitudinal beams, the latter are welded to the outer sides of their back ends of the vertical sheet sides that are angled to each other, and the bearing head is made of a vertically positioned sheet frame, curved with the formation of the back wall, which is parallel to the cross beam, and side cheeks, which are arranged at obtuse angles to the rear wall and is welded to the lower parts to the outer sides of the sidewalls of the rear ends of the longitudinal beams, of a bracket having horizontally arranged one under the other lugs in the form of curved plates, the basis of the lower of which is mounted on the supporting ribs transverse beams and welded thereto, the base both are located on the inner side of the frame and welded to it, and the nodes passed through is made in the rear wall of the cut, and welded to the side edges of the bases of the lugs vertical plates, which are parallel to the cheeks of the frame and welded to them in the Arkasa and welded to it, on the tops of both ears of the bracket supporting the head placed spaced apart on either side of the middle vertical plane of the supporting frame stub nests under the cylinders of the steering column, and on top of the bottom and additional eyelets - sleeve jacks under the rotary column, the axes of which are located on the middle vertical plane and the rear of the axes of the stub nests under the cylinders, and brackets under the outriggers are welded to the outer sides of the lower parts of the side cheeks of the frame supporting the head.
FIELD: mining and building, particularly to extend field of excavator application for ground and mineral excavation at high depth and increased pit height.
SUBSTANCE: working attachment of front or backhoe excavator includes bent one-piece beam and telescopic arm pivotally connected thereto. The telescopic arm comprises holder, as well as main and extendable parts with rotary bucket connected to distal extendable part end. Working attachment comprises hydraulic jack for beam, arm and bucket rotation, as well as hydraulic jack for arm part extending and rotation. Main and extendable arm parts arranged inside holder are made as tubular structures to be inserted one into another. Rotation mechanism has drive made as rack jack. Main and extendable arm parts are connected with each other through spline connection along the full extension length so that front or backhoe excavator position may be fixed by means of drive or rotation mechanism. Lug for hinged bucket rotation jack connection with extendable arm part may slide in longitudinal groove created in main arm part and extending for the full extension length. Cylinder of telescopic arm extension jack is connected with upper inner holder surface by means of single hinge. Rod of telescopic arm extension jack piston is fastened to lower inner surface of extendable arm part by means of ball hinge to prevent telescopic arm extension jack piston rotation as main and extendable arm parts rotate through 180° during working equipment type changing.
EFFECT: increased depth of trench and pits to be formed with the use of the excavator, as well as possibility to excavate benches having different heights along with decreased assembling-disassembling works for equipment change.
FIELD: mining engineering.
SUBSTANCE: lever type working equipment of the shaft loading machine with controlled bucket comprises a mounting plate 1 equipped with a tillable spar 2, a hydraulic jack type slewing gear 3, an arm 5 pivotally mounted on the tillable spar 2, a pivotally connected dipper arm 6, controlled six-bladed clamshell bucket 8 mounted on the free end of the dipper arm, a hydraulic rack controlling arm position 9, a hydraulic rack controlling 12 dipper arm. The lever type working equipment is equipped with two operating hydraulic racks 14 for six-bladed clamshell bucket connected to the dipper arm 6 by means of rigidly fixed mounting racks 15 and ball connectors 16. The hydraulic rack controlling arm position 9 is connected to the mounting plate 1 by means of ball connector 10 mounted in the relative lug 4 made in the mounting plate 1. To provide increase in angle of rotation of the arm and dipper arm, the hydraulic racks controlling arm 9 and dipper arm 12 position are connected by means of hinge brackets 11, 13 mounted in the lugs made on the upper side of the arm 5, with a possibility of simultaneous as well as successive limited longitudinal movement by means of separate hydraulic racks mounted inside the arm.
EFFECT: improved design of lever type mechanism of shaft loading machines.
SUBSTANCE: energy-saving working equipment of a single-bucket excavator on a rotary column comprises a top utility tractor, a rotary column, including a base and a head, a boom, a handle, a bucket, main hydraulic cylinders of a boom. The boom is hingedly connected to a head of a rotary column, and the main hydraulic cylinders of the boom are hingedly connected to the base of the rotary column and the boom. A balancing pneumatic hydraulic cylinder is connected to the base of the rotary column and the boom, and a piston cavity of the balancing pneumatic hydraulic cylinder is connected to a gas balloon charged with pressure of more than 10 MPa. At the same time the gas balloon volume makes more than five working volumes of the balancing pneumatic hydraulic cylinder, a hinged joint of which is arranged on the base of the rotary column with displacement relative to the boom hinged joint on the rotary column head, with the possibility to ensure compact arrangement at the upper and lower positions of the working equipment.
EFFECT: increased effectiveness and efficiency factor, improved design of the working equipment.
SUBSTANCE: hydroficated drive of single-bucket machine bucket rotation comprises a traction rod hingedly connected to the bucket, the main hydraulic cylinder and the lever that are hingedly connected to the traction rod. At the same time the traction rod is made in the form of a helical device comprising three stems with eyes and a coupling, equipped with right and left threads. The lever is made in the form of a helical device comprising two stems with eyes and a coupling, also equipped with right and left threads.
EFFECT: simplified design and higher efficiency of the hydroficated drive of single-bucket machine bucket rotation.
SUBSTANCE: it can be used for earth moving, handling of various cargoes, removal of debris, etc. Invention aims at enhancing operating performances of working equipment of hydraulic bulldozer combining excavator functions at low metal input, better manufacturability and reliability. Working equipment comprises breast (1), push bars (2), truss (3) and breast drive hydraulic cylinders (10). Excavator equipment is rigidly secured at top part of rear wall of breast (1) with the help of rigid brackets (8). Said equipment is composed of two brackets (7) driven by hydromotor (9). Inside said brackets boom (6) with handle (5) are fitted while hydromotor (9) connected with bucket (4) arranged in handle coupling. Besides there are hook (15) and hydraulic cylinders for control over boom (12) and handle (11) articulated with rotary brackets (7) and boom (6) by one side and by roods with boom (6) and handle (5) by opposite side.
EFFECT: higher efficiency of jobs under constricted conditions.
FIELD: machine building.
SUBSTANCE: hydraulic system is designed to move a carriage directed to travel along a linear path by a support frame such as back digger or excavator. The system comprises two hydraulic cylinders 114, 116 each of which has a cylindrical casing and a piston rod. The cylindrical casings 114a and 116a of the two hydraulic cylinders are connected to each other, and the piston rod end of one hydraulic cylinder is connected to the support frame while the piston rod end of the other hydraulic cylinder is connected to the carriage. Two piston rods 114b and 116b protrude from the same side of the connected cylindrical casings; in every extreme position of the carriage 110, the piston rod 114b, 116b of one of the respective hydraulic cylinders is completely pulled out and the piston rod of the other hydraulic cylinder is completely retracted.
EFFECT: improved design.
4 cl, 5 dwg
SUBSTANCE: excavator includes carrier with rotating frame installed on it, where engine compartment, driver's cabin with excavator control system, boom with gimbal-mounted saddle bearing are located. Operating equipment includes scoop, handle passing through saddle bearing and connected with the scoop by its one end. Handle push mechanism includes drive installed on one of handle's ends, nut fitted in saddle bearing, and screw passing through the nut which screw is installed inside the handle so that one of its ends is connected with the drive. In the handle, longitudinal groove is made to provide engagement of nut with screw and handle movement.
EFFECT: higher efficiency of push mechanism due to creation of nut-screw pair and lubrication providing smooth reciprocating movement of handle and transmission of greater pushing force to scoop at less drive force applied, higher reliability of push mechanism operation.
6 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: invention relates to a working machine having a boom. Boom is pivotally mounted on a base unit of working machine via a bolt joint to a horizontal axis. Boom attachment assembly is made on base machine with three support plates with corresponding support sections for bolt joint.
EFFECT: improvement of articulation of boom to base machine of working machine.
10 cl, 4 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: device comprises an antenna of GPS/Glonass systems or a photodetector installed on a vertical rod fixed on a work tool with the help of a bracket with a biaxial hinged joint. Hinged joint axes are equipped with units of rotation with sensors of turn angle and units of braking with electromagnets. A counterweight is fixed in the lower part of the rod. As position of the road building machine or work tool changes relative to the horizon, the rod under action of the counterweight is turned on axes of the biaxial hinged joint and preserves its vertical position. The device is equipped with a system unit supplying control pulses to electromagnets of braking units. The system unit may receive data from sensors of turn angle, has a differentiating link in its composition, a relay link with an area of insensitivity, a unit of pulses generation and an amplification link.
EFFECT: reduced additional error of measurement, higher accuracy of works carried out with a road-building machine.
2 cl, 7 dwg