SU909048A1 - Soil-loosening device - Google Patents

Description

(54) RIDDER

one

The invention relates to construction and road machines used to destroy hard, frozen soils, as well as artificial road surfaces.

The three-blade ripper of percussive action is well-known, which is a mounted attachment mounted on an excavator. It consists of a folding, it U-shaped direction of the frame, which is attached to the support beam. Hydro supports are attached to the support beam. The ripper tool is a comb. A three-wedge comb is moved along the direction of the frame located inside the frame. To grip the comb and raise it to the upper position in the direction of the frame, it is mixed with a frame, a slider with a self-gripping hook. After raising the comb to the upper position of the tail of the comb hook, it rests against the stopper mounted on the frame, and the comb is automatically dropped onto the ground. The excavator trailer drum lowers and raises the carriage (1.

The disadvantages of the known ripper are significant dynamic loads acting on its metal structure.

low durability of the device, the offset from the vertical axis.

Closest to the proposed one, there is a replacement equipment with a hydraulic hammer to an excavator. The equipment is a percussion mechanism with a working wedge, which is mounted on the boom mounting block mounted on the rotary column of the excavator. The impact mechanism is raised and lowered by a jib hydraulic cylinder, and it is rotated in a vertical plane by a handle hydraulic cylinders. The impact mechanism is driven by a hydraulic motor installed in the upper part of the impactor. The equipment works as follows.

The working fluid from the pump installed on the excavator enters the percussion mechanism. When the wedge stops in the ground, the percussion mechanism works and the wedge strikes

-Q on the development environment 2.

The disadvantages of this device are the low efficiency and productivity of the equipment caused by the presence of only one wedge, which does not allow for the most efficient spalling.

ground; the impossibility of using several hydraulic hammers on one mounted equipment as a result of a possible “wedge freezing when one of the wedges encounters an intractable advantage.

The purpose of the invention is to increase the efficiency of the development of durable soils when performing a loosening organ of several impact mechanisms.

The goal is achieved by the fact that each of the percussion mechanisms is spring-loaded with respect to the mounting unit on both sides.

FIG. 1 shows a ripper, side view; in fig. 2 - the same in the process; in fig. 3 - mounting block, plan view; in fig. 4 — node I in FIG. one.

The ripper of durable, frozen soils and pavements consists of a base ton of gauge 1, on the rotary mechanism 2 of which, using the boom 3 and hydraulic cylinders 4 and 5, mounted through the bracket 6 is the mounting block 7. In the block 7, pneumatic hammers 8 are mounted, and on its outer surface is mounted the bracket 9, the duplicate bracket 6 when the block 7 is rotated. On the plate 10 of the mounting block 7, the upper 11 and lower 12 parts of the equipment body are installed, with which the pneumatic hammers 8 are connected via elastic elements 13 and 14, and the elastic element 13 is supported by end faces On the lower part of the housing 12 and the cup 15, and the elastic element 14 - on the glasses 16 and 17. An adjusting bolt 18 is attached to the cup 17. In the pneumatic hammers 8, peaks 19 are installed, and the bodies of the pneumatic hammers 8 are connected with a source of compressed air (not shown).

The proposed equipment works as follows.

With the help of hydraulic cylinders 4 and 5, the peaks 19 of the pneumatic hammers 8 are mounted on the surface of a destructible medium. Compressed air is supplied from the source through pipelines 20 and choke 21 to pneumatic hammers 8, the peaks of which begin to make reciprocating movements, striking blows

on the developed environment. Under the action of the own weight of the attachments, the forces generated by the cylinders 4 and 5, as well as the impacts of peak 19, the latter are introduced into the environment. When this happens the destruction of the developed environment.

In addition, when one of peak 19 encounters any intractable obstacle, the remaining peaks 19 carry out progressive deepening into the array under development, rather than remaining at the same level as the peak that encountered the obstacle. This is achieved by the deformation of the elastic element 13 (stretching) and the elastic adjustable element 14 (compression). The stiffness of the elastic adjustable element 14 is changed, depending on the properties of the medium being developed, by means of an adjusting bolt 18. Thus, when one of the peaks 19 is encountered with an intractable obstacle, the remaining peaks do not hang.

O The ripper makes it possible to most effectively destroy durable, frozen soils and road surfaces due to the presence of several pneumatic hammers mounted relative to the body on elastic elements.

Claims (2)

1. Yu.A. Vetrov et al. Destruction of strong soils. Kiev, “Budivelnik, 1973, rice 127, 2.Telushkin V.D. Machines for the development of frozen soils. M., “Mechanical Engineering, 1973, p. 09, fig. 67 (prototype). 1 FIG. 2 five one / /