SU631608A1

SU631608A1 - Working equipment for loosening soil

Info

Publication number: SU631608A1
Application number: SU731888202A
Authority: SU
Inventors: Юрий Наумович Берновский; Игорь Михайлович Ващук; Юрий Владимирович Дмитревич; Юрий Иванович Алексеев; Адольф Петрович Федоров; Геннадий Михайлович Пискунов; Виктор Иванович Андреев; Гидалий Аронович Шнейдер
Original assignee: Всесоюзный научно-исследовательский институт строительного и дорожного машиностроения
Priority date: 1973-02-28
Filing date: 1973-02-28
Publication date: 1978-11-05

Description

Изобретение относитс к строительно-дорожным машинам, а именно к оборудованию дл разрушени мерзлых грунтов, трешиноватых горных пород и твердых дорожных покрытий.The invention relates to road construction machines, in particular, equipment for the destruction of frozen soils, trine rocks and solid pavements.

Известна установка дл разработки мерзлого грунта, включаюш,а навесное оборудование в виде гидромеханического молота с клином, по которому осуш,ествл етс центральный жесткий удар I.The installation for the development of frozen ground is known, including, and the attachment equipment in the form of a hydromechanical hammer with a wedge, on which the dehydration, is subjected to central hard impact I.

Недостатком установки ат етс отсутствие амортизационных устройств.The disadvantage of installation is the absence of depreciation devices.

Известно также рабочее оборудование дл рыхлени мерзлого грунта, в котором рабочий орган выполнен в виде плоского клина, имеющего по кра м направленные в сторону открытой части забо выступы. Последний смонтирован шарнирно на стреле посредством планок с возможностью перемещени относительно стрелы, что позвол ет уменьшить динамические нагрузки на базовую мащину 2.It is also known to work equipment for loosening frozen ground, in which the working body is made in the form of a flat wedge, which has projections along the edges of the open part. The latter is pivotally mounted on the boom by means of slats with the possibility of movement relative to the boom, which makes it possible to reduce the dynamic loads on the base layer 2.

Такое крепление рабочего оборудовани , однако, не позвол ет существенно снизить динамические нагрузки на стрелу, так как практически сложно обеспечить гарантированный зазор между планками, шарнирноSuch an attachment of the working equipment, however, does not significantly reduce the dynamic loads on the boom, since it is practically difficult to provide a guaranteed gap between the slats, hinged

закрепленными на стреле, и цанф1п:и, установленными на раме оборудовани . того, наличие проуишн с прорез ми затрудн ет установку исполнительного лнструмента в нужное положение.fixed on the boom, and tsanf: and installed on the frame of the equipment. In addition, the presence of slotted holes makes it difficult to set the actuator tool to the desired position.

Цель изобретени - сн1 жение динамических нагрузок на стрелу.The purpose of the invention is to reduce the dynamic loads on the boom.

Указанна цель достигаетс тем, что удаленна от исполнительного инструмента часть ударного механизма закреплена на несущей ра.ме щарнирно, а приближенна -посредством амортизатора, при этом несуща рама соединена со стрелой с помощью шарнира и щарнирного двухзвенника, состо щего из т ги - амортизатора и управл емого рычага.This goal is achieved by the fact that the part of the percussion mechanism that is remote from the executive tool is fixed on the carrier frame and is approximated by means of a shock absorber, while the support frame is connected to the boom using a hinge and a hinge two-link bearing consisting of a shock absorber and control leverage.

На фиг. 1 изображено предлагаемое рабочее оборудование, общий вид; на фиг. 2 - поперечное сечение нижнего узла креплени ударного механизма с несущей рамой; на фиг. 3 - продольное сечение т ги-амортизатора .FIG. 1 shows the proposed working equipment, a general view; in fig. 2 is a cross section of a lower fastening assembly of a percussion mechanism with a support frame; in fig. 3 - a longitudinal section of the ti-shock absorber.

Claims

The equipment consists of the boom I, the carrier frame 2, the hydraulic impact mechanism 3, which includes the bush 4 and the executive tool-wedge 5. The frame 2 is made in the form of two cheeks rigidly connected by themselves. Between the cheeks of the frame 2, through the fingers 6 and 7, the hammer mechanism 3 is fixed. The fingers 7 are inserted into the oval holes made in the box 4 with a gap that allows the shock mechanism 3 to rotate relative to the fingers 6. A shock absorber 8 is installed in the lower part of the frame 2 between the cheeks consisting of a set of rubber-metal elements located between the bracket 9, abutting the bush 4, and the wall 10. The preliminary tension of the elements is carried out by the studs 11. The frame 2 is connected to the boom 1 by the axle 12 and the hinged two-link consisting of -amo tizator 13 and lever 14 controlled by a hydraulic cylinder 15. T ha-shock absorber 13 consists of a sleeve 16, fastened to an axis 17, freely mounted on the axis 17 of the cup 18 and a set of rubber-metal elements 19 with stops 20 and 21, the housing 22 connected by thread with the cup 18, and the sleeves 23 fastened to the housing 22. The axis 17 is provided with a nut 24 for preloading rubber-metal elements 19. During operation, when the tool, made in the form of a wedge 5, is immersed in the material to be destroyed, its beveled surfaces act significant horiz Ontal forces, which are largely extinguished by a go-type shock absorber 13. In the development of frozen soil at the beginning, it is created during the movement and the subsequent immersion of the tool 5 is made at a certain distance from it. At the same time, the horizontal forces acting on the wedge 5 and directed mainly towards the side are largely extinguished by the lower shock absorber 8. Claims of the invention Working equipment for loosening the ground, mainly frozen, including boom and the impact frame mounted on it by means of a supporting frame A mechanism with an executive tool wedge, characterized in that, in order to reduce the dynamic loads on the boom, a part of the percussion mechanism that is removed from the executive tool is mounted on the hinge frame It is approximate and approximate by means of a shock absorber, while the supporting frame is connected to the boom with the help of a joint and a hinged two-link, consisting of a shock-absorber and a control lever. Sources of information taken into account during the examination: 1. USSR author's certificate No. 157286, cl. E 02 F 5/30, 1962.

2. USSR author's certificate number 278560, cl. E 02 F 5/30, 1969.

1g. one

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(Riga.Z