SU897965A1 - Working member of earth-moving machine - Google Patents

Description

one

The invention relates to construction, in particular, to means of mechanizing earthworks, and can be used in excavators for fragments of trenches, trenches of various profiles both in thawed and frozen soils.

Known working bodies of earthmoving machines with buckets, movable and fixed frame, thrower and drive 1.

The disadvantage of this working body is that the pivoting frames of the working bodies contain a large number of hinges and tg, which complicates the design of the machine.

Also known working body of the earthmoving machine, including two working body with frames, which are hinged to the central frame by means of m and hydraulic cylinders, and the thrower 2.

However, in the process of lateral movement of the sections of the working body and

the presence of stronger soil or rocky inclusions from the side of one of the sections, they move in the face in the transverse direction with different angular velocities, up to the possible cessation of movement of one of the sections and accelerated movement of the other. This leads to the fact that the foundation pit is of an asymmetrical shape, and the lateral loads that occur break the stability of the base machine.

The purpose of the invention is to improve the quality of torn cavities by synchronizing the rotation of the working bodies.

This is achieved by the fact that the central frame is provided with a longitudinal guide, in which the hydraulic cylinder body is installed, which is pivotally connected with the arms of the working bodies, and the stem with the central frame.

Claims (2)

FIG. 1 shows a working body, side view; FIG. 2 - the same, top view; in fig. 3, section A-A in FIG. one . The working body for opening trenches and trenches is hinged to the brackets 1 of the base machine 2 and is transferred from the transport position to the working position or back by the power hydraulic cylinders 3. The working body contains the central frame k, the blade; soil thrower 5 with a gearbox 6 pivotally attached to the brackets 7 of the hull 8 of the thrower 5 swivel races 9 with rotors 10. On each rotor 10 buckets 11 are installed with discharge ports 12. for ejection of soil into the thrower 5 and the drive reducer 13. The swing frames of the rotor 9 are pivotally connected by means of lA to the body of the hydraulic cylinder 15, which is mounted on the central frame 4 by means of pins 19 sliders 20 and guide rails 21. On the cage of the sweepers, a hydraulic supporting ski is installed 16. The case 8 of the thrower 5 has a window 17 of the top and a window 18 of the lower release of soil. With the passage of trenches whose width does not exceed the total width of the rotor 10, the development of the soil is carried out without moving the rotors 10 in the transverse direction, i.e. only due to the rotation of the rotors 10 and the translational movement of the machine. The developed soil is fed to gateway 5 and removed to both sides of the trenches through windows 17 and 18, respectively, the upper and lower ejection. The required laying of slopes of the trench is formed due to the inclination of the rotors 1 PS relative to the vertical. With the passage of trenches whose width exceeds the total width of the rotors 10, as well as with the passage of the boiler; no8, the development of the soil is accomplished by rotating the rotors 10, entering the machine 2 and moving the rotors 10 together with the swing frames 9 in the transverse direction by means of a hydraulic cylinder 151 and tons of g. 1. At the same time, the hydraulic cylinder 15, moving along the guides 21 fixedly attached to the frame k, pushes apart or pushes the rotary frames 9 with the rotors 10 through the frame k. ; t 9 with hydrocyl the indrome 15. and fixing from lateral movements of the hydraulic cylinder; 15 in the guides 21, it is provided that the pivoting frames 9 with the rotors 10 always move in the transverse direction with the same angular velocity regardless of the ground conditions. The developed soil is fed into the thrower 5 and removed to the dump through the upper ejection window into the housing 8 of the thrower 5. The required laying of the slopes of the trench or excavation is provided by the configuration of the rotors 10 as they rotate and deviate by a certain angle during lateral movement. Latch 16 is an additional support for the working body, unloads (partially) the base machine from the weight of the working body and allows you to adjust the amount of chips being cut when the working body is buried. The use of the proposed trench-bonded working body allows unloading the base machine from the lateral forces arising from the fragment of the pits and wide trenches, increasing productivity compared to similar machines, as well as obtaining a notch with a symmetrical profile relative to the longitudinal axis. The invention of the working body of the earthmoving machine, including two working bodies with frames, which are hinged on the central frame by means of t and hydraulic cylinders, and a thrower, for example, with the aim of improving the quality of the trenching grooves By synchronizing the rotation of the working bodies, the central frame is provided with a longitudinal guide, in which the hydraulic cylinder body is installed, which is pivotally connected by rods to the frames of the working bodies, and the stem is connected to the central frame. Sources of information taken into account in the examination 1. USSR author's certificate number 386070, cl. E 02 F 3/08, 1971. 2. USSR author's certificate №, cl. E 02 F 3/08, 1969 (PROTOTYPE). iO ff -., f3 15 7 3 f Phi 3