US3869814A - Excavator with a dragline equipment - Google Patents

Excavator with a dragline equipment Download PDF

Info

Publication number
US3869814A
US3869814A US377915A US37791573A US3869814A US 3869814 A US3869814 A US 3869814A US 377915 A US377915 A US 377915A US 37791573 A US37791573 A US 37791573A US 3869814 A US3869814 A US 3869814A
Authority
US
United States
Prior art keywords
boom
excavator
frame
rope
bucket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US377915A
Other languages
English (en)
Inventor
Alexandr Vladimirovich Rannev
Arvid Karlovich Reish
Viktor Alexandrovich Svirsky
Boris Danilovich Khodykin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3869814A publication Critical patent/US3869814A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/48—Drag-lines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/14—Booms only for booms with cable suspension arrangements; Cable suspensions

Definitions

  • a turntable of the excavator wherein a pivotally mounted frame is provided capable of turning in a vertical plane and movably linked with the boom by means ofa derricking rope.
  • the hydraulic cylinders piston rods are attached to an upper part of the frame and rope drums serving to operate a bucket being mounted on said frame.
  • the invention relates to working equipment having singlebucket excavators, and more particularly to the design for the draglines of said excavators whose working equipment is operated and controlled hydraulically.
  • One of the known draglines has a boom defined by two sections interconnected by pins and tie rods.
  • the lower boom section is attached to the turntable of an excavator and receives support at its upper end from piston rods of hydraulic cylinders mounted on the turntable.
  • Two rope drums are disposed on the same boom section and serve to impart motion to a bucket and also having guide sheaves over which ropes are passed.
  • the high dead weight of the rope drums arranged on the boom at a considerable height above the ground and forward with respect to the edge about which the excavator is likely to overturn adds to the leverage of the machine, and, consequently, impairs the rate of its work, with the bucket not being filled to its full capac ity.
  • the guide sheaves of the drag rope are disposed at the foot of the boom so that the rope is bent towards the drum through an angle in excess of 90. This increases the resistance offered to the rope as it passes over the sheaves and reduces the speed at which the bucket is lowered into the face, with the rate of work also being impaired in this case.
  • the boom-luffing mechanism actuated by hydraulic cylinders features three pivotal arrangements serving to secure said mechanism to the turntable of an excavator instead of only two pivots which are used to secure the boom and boom-luffing hydraulic cylinders on other excavators.
  • the object of the invention is to provide a dragline in which the problem of disposing the rope drums for imparting motion to the bucket of an excavator and also to the hydraulic cylinders of the boom-luffing mechanism is solved so as to be able to adapt said luffing mechanism for use on excavators of various make and also to increase substantially the rate ofwork of the excavator by improving its stability and increasing the bucket capacity.
  • a dragline comprising a boom secured to the turntable of an excavator so as to be capable of luffing in a vertical plane with the aid of hydraulic cylinders. and having a bucket operated by means of rope drums, with the hydraulic cylinders being pivotally mounted, in accordance with the invention, on a boom close to its foot pin and on the turntable of excavator and further provided with a pivotally mounted frame capable of turning in a vertical plane and being movably attached to the boom, and with piston rods of the hydraulic cylinders being connected to the frame and with the rope drums operating the bucket being mounted on said frame.
  • any luffingof the boom or turning of the frame in a vertical plane due to the action of said piston rods moving either inwardly or outwardly is accompanied by some travel of the hydraulic cylinders taking place in the same direction as the boom.
  • the fact that the piston stroke or movement is addable with the amount of cylinder travel is conducive to an increase in the turn angle of the frame and the luffing of the boom while the overall dimensions of the hydraulic cylinders and frame are reduced by 8 to 10 percent, maintaining, however, the requisite length and luff of the boom.
  • the hoisting of the boom into the working position causes the frame with rope drums to turn towards'the counterweight of the excavator so that the center of gravity of the rope drums moves away from the boom by a corresponding amount, with the leverage of excavator being reduced and a higher rate of work being attainable by employing a bucket with a greater capacity.
  • the rope drums of dragline are disposed on the frame pivotally connected to the turntable of the excavator makes said drums a self-contained unit capable of being removed from the excavator with ease and capable of being fitted on practically any excavator.
  • the dragline disclosed herein is a multi-purpose machine being mounted on the turntable with the aid of two pivotal arrangements which are available on every excavator.
  • the dragline for a hydraulically driven excavator has a boom 1 attached to a turntable 2 of the excavator having a provision for luffing in a vertical plane by means of a pivotal arrangement 3.
  • a frame 4 capable of turning in a vertical plane with the aid of a pivotal arrangement 5.
  • Said frame 4 bears upon piston rods 7 having hydraulic cylinders 8 with its upper end connected to said piston rods by a fulcrum pin 6.
  • the hydraulic cylinders 8, in turn, are secured to brackets 9 of the boom 1 by means of fulcrum pins 10.
  • the brackets 9 are disposed close to the foot pin of the boom 1.
  • Rope drums ll & 12 are mounted on the frame 4, and using corresponding bearings (not shown), whereas on the fulcrum pin 6 a derricking sheave 13 is arranged passing over which is a derricking rope 14 whose ends are connected to a point pin 15 of the boom 1 so that the frame 4 is movably linked with the boom.
  • a fairlead 16 having rollers and sheaves serving to guide a drag rope 18 between the rope drum 11 and a bucket 17.
  • a hoist rope is wound on the rope drum 12 which passes over a point sheave 20 of the boom 1 and is connected to a suspension 21 for the bucket 17.
  • a rope 23 is secured to an arch 22, passing over a sheave 24 of the suspension 21 and held fast to the drag rope 18 with aid of a fastener 25.
  • the dragline disclosed herein operates as follows.
  • the boom is luffed upwards, and the frame with the rope drums are raised into the working position as required. This is accomplished by the piston rods 7 which are moved outwardly from the hydraulic cylinders so as to turn the frame 4 about the pivots 5 and to exert a pull on the derricking rope 14, the latter raising the boom by turning it about the pivot 3.
  • the piston rods For lowering the frame with the rope drums and the boom, the piston rods must be drawn into the hydraulic cylinders.
  • the boom and frame with rope drums are fixed in the working position by locking the hydraulic cylinders.
  • the filled bucket 17 is then lifted by winding the drag rope l8 simultaneously with the hoist rope 19.
  • the hoist rope I9 is made taut while the drag rope is slackened.
  • the discharge of earth is accomplished when the hoist rope 19 is stopped while the drag rope 18 is being paid out so as to enable the bucket to overturn due to gravity.
  • the bucket 17 is returned back into the excavation and the dragline working cycle of is repeated.
  • the dragline disclosed herein can be mounted effortless and readily on practically any excavator. Furthermore, an excavator equipped with such a dragline displays an improved stability and is capable of employing a high-capacity bucket with the result being that its rate of work will increase by up to 10 percent.
  • a dragline excavator comprising a boom pivotally mounted to a turntable of said excavator; hydraulic cylinders serving the purpose of luffing said boom in a vertical plane, said cylinders being pivotally attached to said boom closely adjacent to the pivotal mounting of said boom to said turntable; a frame pivotally mounted on the turntable of the excavator for pivotal movement of the same in a vertical plane, the piston rods of said cylinders being connected to said frame at an upper part thereof; said excavator including a dragline bucket and rope drums disposed on said frame to operate said bucket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Shovels (AREA)
US377915A 1972-07-11 1973-07-10 Excavator with a dragline equipment Expired - Lifetime US3869814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1803101A SU497384A1 (ru) 1972-07-11 1972-07-11 Рабочее оборудование экскаватора-драглайна

Publications (1)

Publication Number Publication Date
US3869814A true US3869814A (en) 1975-03-11

Family

ID=20519691

Family Applications (1)

Application Number Title Priority Date Filing Date
US377915A Expired - Lifetime US3869814A (en) 1972-07-11 1973-07-10 Excavator with a dragline equipment

Country Status (3)

Country Link
US (1) US3869814A (OSRAM)
FR (1) FR2192217B1 (OSRAM)
SU (1) SU497384A1 (OSRAM)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020962A (en) * 1990-09-10 1991-06-04 Allied Gator, Inc. Apparatus for dismantling buildings
US5493798A (en) * 1994-06-15 1996-02-27 Caterpillar Inc. Teaching automatic excavation control system and method
US6062405A (en) * 1996-04-26 2000-05-16 Manitowoc Crane Group, Inc. Hydraulic boom hoist cylinder crane
US20060254998A1 (en) * 2003-03-11 2006-11-16 Davis Daniel E Pipelayer crane excavator apparatus and methods
US20070221600A1 (en) * 2003-03-11 2007-09-27 Davis Daniel E Pipelayer and method of loading pipelayer or excavator for transportation
USD567259S1 (en) 2007-05-09 2008-04-22 Davis Daniel E Pipelayer
CN103121628A (zh) * 2012-12-31 2013-05-29 大连理工大学 一种提高移动式起重机带载转弯稳定性的装置
US20180073219A1 (en) * 2015-04-13 2018-03-15 Volvo Construction Equipment Ab Hydraulic apparatus of construction equipment and control method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895623A (en) * 1953-12-02 1959-07-21 Standard Oil Co Crane construction
US3076560A (en) * 1961-04-24 1963-02-05 Thew Shovel Co Retractible mast and boom stop
US3685668A (en) * 1969-10-03 1972-08-22 Hopper Inc Convertible level luffing crane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895623A (en) * 1953-12-02 1959-07-21 Standard Oil Co Crane construction
US3076560A (en) * 1961-04-24 1963-02-05 Thew Shovel Co Retractible mast and boom stop
US3685668A (en) * 1969-10-03 1972-08-22 Hopper Inc Convertible level luffing crane

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020962A (en) * 1990-09-10 1991-06-04 Allied Gator, Inc. Apparatus for dismantling buildings
US5493798A (en) * 1994-06-15 1996-02-27 Caterpillar Inc. Teaching automatic excavation control system and method
US6062405A (en) * 1996-04-26 2000-05-16 Manitowoc Crane Group, Inc. Hydraulic boom hoist cylinder crane
US20060254998A1 (en) * 2003-03-11 2006-11-16 Davis Daniel E Pipelayer crane excavator apparatus and methods
US20070221600A1 (en) * 2003-03-11 2007-09-27 Davis Daniel E Pipelayer and method of loading pipelayer or excavator for transportation
US20070241074A9 (en) * 2003-03-11 2007-10-18 Davis Daniel E Pipelayer crane excavator apparatus and methods
USD567259S1 (en) 2007-05-09 2008-04-22 Davis Daniel E Pipelayer
CN103121628A (zh) * 2012-12-31 2013-05-29 大连理工大学 一种提高移动式起重机带载转弯稳定性的装置
US20180073219A1 (en) * 2015-04-13 2018-03-15 Volvo Construction Equipment Ab Hydraulic apparatus of construction equipment and control method therefor

Also Published As

Publication number Publication date
FR2192217B1 (OSRAM) 1976-11-12
DE2334816A1 (de) 1974-02-07
SU497384A1 (ru) 1975-12-30
DE2334816B2 (de) 1977-03-10
FR2192217A1 (OSRAM) 1974-02-08

Similar Documents

Publication Publication Date Title
CN101839003A (zh) 多功能吊挖机
US3869814A (en) Excavator with a dragline equipment
CN201400901Y (zh) 多功能吊挖机
US4381060A (en) Ring supported mobile tower crane
CN107938736B (zh) 挖掘机的工作臂架及挖掘机
CN107407071A (zh) 用于挖掘铲车的提升的配重
US2594720A (en) Pier hole excavator
US3909961A (en) Dragline arrangement for telescopic hydraulic crane
US4167072A (en) Boom arrangement for dragline
US4917566A (en) Crane attachment for backhoe
US3666124A (en) Lifting and excavating apparatus
US2267614A (en) Dragline excavator
US2640284A (en) Dredge
JP7604243B2 (ja) クラムシェルバケット
CN212246016U (zh) 一种起重机的副臂前支架装置
GB2559811A (en) Device for an excavator
US4174579A (en) Twin boom dragline
JP3386579B2 (ja) 滑車式クレ−ン装置
US3160298A (en) Lowerable a frame
US4488849A (en) Power shovel
CA2060473A1 (en) Pivoted handle dipper shovel with hydraulic crowders and wire rope pulley
CN105236281B (zh) 一种自平衡倾翻力矩变幅机构
CN115924768B (zh) 臂架装置及多功能吊管机
US1100052A (en) Excavating-machine.
CN202610856U (zh) 四连杆平挖抓斗