SU831903A1

SU831903A1 - Hydraulic excavator working equipment

Info

Publication number: SU831903A1
Application number: SU792714272A
Authority: SU
Inventors: Михаил Львович Куперман; Виктор Михайлович Лобанов; Наталья Анатольевна Булгач; Татьяна Николаевна Банникова; Павел Васильевич Панкрашкин; Александр Владимирович Раннев; Анатолий Михайлович Крылов; Арнольд Соломонович Иоффе; Сергей Владимирович Чадин; Василий Иванович Калугин; Владимир Глебович Песков
Original assignee: Московское Научно-Производ-Ctbehhoe Объединение По Строи-Тельству И Дорожному Машиностроению
Priority date: 1979-01-15
Filing date: 1979-01-15
Publication date: 1981-05-23

Description

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Изобретение относитс к землеройным машинам, в частности к рабочему оборудованию гидравлических экскаваторов . The invention relates to earthmoving machines, in particular to the working equipment of hydraulic excavators.

Известно рабочее оборудование экскаватора дл разработки грунтов, включгиощее стрелу, руко ть, ковш, . .гидроцилиндры подъема стрелы, поворота руко ти и поворота ковша 1.The excavator's working equipment for excavation is known, including boom, arm, bucket,. Hydraulic lift boom, turn the arm and turn the bucket 1.

Однако такое оборудование не позвол ет проводить планировку ближайшего к экскаватору откоса канала. При этом требуетс увеличенное врем выгрузки ковша в стандартнью кавальеры , а больша длина руко ти не позвол ет поворачивать ее на выгрузку против кавальеры высотой более 0,5 +0,7 м, вследствие чего требуютс дополнительные движени подъема стрелы. Кроме того, поворот на выгрузку потребл ет значительную мощность , так как дл обеспечени возможности выгрузки в кавальеры высотой более 0,5 + 0,7 м руко ть должна быть повернута на значительный угол, что увеличивает радиус поворота основной вращающейс массы груженого ковша. В целом недостатки усложн ют управление машиной, отрицательно вли ют на качество выполн емыхHowever, such equipment does not allow planning of the channel closest to the excavator. This requires an increased time of unloading the bucket into the standard cavalier, and the long arm length does not allow it to be turned for unloading against the cavalier with a height of more than 0.5 +0.7 m, as a result of which additional boom lifting movements are required. In addition, the rotation for unloading consumes considerable power, since in order to be able to discharge into cavaliers with a height of more than 0.5 + 0.7 m, the handle must be rotated through a considerable angle, which increases the turning radius of the main rotating mass of the loaded bucket. In general, deficiencies complicate machine control, negatively affect the quality of work performed.

работ и увеличивают продолжительность рабочего цикла.works and increase the duration of the operating cycle.

Наиболее близким к предлагаемому техническим решением вл етс рабочее оборудование экскаватора, включающее ковш, руко ть, шарнирно сочлененную стрелу, имеющую основное и дополнительное звень , и гидроцилиндры поворота ковша, руко ти и Closest to the proposed technical solution is the working equipment of the excavator, which includes a bucket, a arm, an articulated boom having a main and additional links, and hydraulic cylinders for the bucket to turn, the arms and

0 звеньев стрелы С2.0 links of the arrow C2.

Однако известна конструкци обеспечивает сравнительно небольшой диапазон изменени длины стрелы,However, the known construction provides a relatively small range of variation in boom length,

что снижает технологические возможности оборудовани . Это обусловлено тем, что при креплении гидроциливд .ра непосредственно к дополнительи «у звену, кинематически невозможноwhich reduces the technological capabilities of the equipment. This is due to the fact that when mounting hydrocylide .pu directly to the accessory “at the link, it is kinematically impossible

.обеспечить достаточно большой диапазон изменени длины стрелы и восприн тие действу«шжх на эти гидроцилиндры нагрузок при работе оборудованием обратна лопата. Это отрицательно вли ет на производительность .. to provide a sufficiently large range of variation in the boom length and the perception of the action of the shzhh on these hydraulic cylinders of loads during the operation of equipment with a back shovel. This has a negative effect on performance.

Claims

The purpose of the invention is to increase productivity by expanding the bucket action zone and ensuring the grading of the slopes to the level of the excavator side without moving the latter. The goal is achieved by the fact that the working equipment of an excavator, including a bucket, a handle, an articulated boom, having primary and secondary links and hydraulic cylinders for the bucket, arms and boom links, is equipped with sharjHHpho interconnected levers that have 1X pivotally attached to the main and additional links of the boom, and the rods of the hydraulic cylinders of the turn of the additional link to the arrows are hinged in the hinge connecting the levers. FIG. 1 shows Excavator equipment; in fig. 2 - the scheme of his work. The working equipment contains a bucket 1, a arm 2, an articulated boom having main and additional links 3 and 4 connected by a hinge 5. Hydraulic cylinders 6-9, which rotate the bucket, arms and links of the boom ,. associated with the latest hinge. The equipment is provided with a hinged-lever mechanism in the form of interconnected levers 10 and 11 by a hinge 12. The free ends of the levers are hingedly attached to the main 3 and adjacent to it an additional 4 links of m. The hydraulic cylinder rods 8 and 9 are connected with attached to the main link. boom arms 10. The pivot pivots of the rods of the cylinders 8 and 9 are aligned respectively with the pivots of the pivots 12 and 13 of the pivot of the lever 10 to the active link of the boom. The main link of the boom and the cylinder of the hydraulic cylinder 8 are connected with the platform 14 of the excavator by the hinges 15 and 16, the cylinder of the hydraulic cylinder 9 is connected with the main arrow of the arrow by the hinge 17, and the lever 11 with the additional one. The link 4 by means of the hinge 18. The equipment works in the following way. With the hydraulic rods retracted, the minimum digging radius is established, and when the rods are extended, the maximum bucket is raised. Depending on the parameters of the excavation being developed, the length of the boom is set and the soil is excavated using a bucket collar or a hilt. The movable connection of the main and adjacent additional link of the boom with hydraulic hydraulics 9 which are hydraulically connected to the floating position 9 makes it possible to plan the slopes of the channels along their entire line. At the same time, the rectilinear trajectory of the cutting edge of the bucket, within the limits of permissible deviations, is obtained as a result of the fact that the working equipment, when the hydraulic cylinders 9 are turned on, rotates the additional link of the boom, is pressed to the ground and is kept on the reaction path of the soil. The slope of the slope is maintained by the ratio of the speed of rotation of the handle and the lifting of the working equipment. The change in the boom length during operation increases the technological capabilities of the equipment, since it allows the development of the bottom side from one site limited by the maximum and minimum digging radii. In addition, the performance of excavators is improved, since the development of back-end equipment with variable boom length reduces the load on the hydraulics of the turn, boom and platform, and, consequently, reduces the time required to perform these operations. Claims of the Invention Hydraulic Excavator Equipment Including Bucket, Hand, Articulated Boom, with Main and Additional Parts and Pidrotsilarnyi Turning the Bucket, Hand and Boom Parts, so as to increase performance by extending the bucket's range of operation and ensuring the grading of the slopes to the level of the excavator's bench without moving the latter, it is equipped with pivotally connected levers, the free ends of which are pivotally attached to the main and The additional links are shearing, and the rods of the hydraulic cylinders for turning the additional link of the boom hinge are fixed in the hinge connecting levers. Sources of information taken into account in the examination 1. Excavator LC-80 m. Prospect firm Poklan, 1977, 2, US Patent 3589539, cl. 214-138, 29,06,71 (prototype).

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