US3653486A - Material handling apparatus - Google Patents

Material handling apparatus Download PDF

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Publication number
US3653486A
US3653486A US55889A US3653486DA US3653486A US 3653486 A US3653486 A US 3653486A US 55889 A US55889 A US 55889A US 3653486D A US3653486D A US 3653486DA US 3653486 A US3653486 A US 3653486A
Authority
US
United States
Prior art keywords
boom
turntable
mast
counterweight
cable
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
US55889A
Other languages
English (en)
Inventor
William B Mclean
Laimons Naruns
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.)
Dravo Corp
Original Assignee
Dravo Corp
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 Dravo Corp filed Critical Dravo Corp
Application granted granted Critical
Publication of US3653486A publication Critical patent/US3653486A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02F9/18—Counterweights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
    • B65G65/16—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with rotary pick-up conveyors
    • B65G65/20—Paddle wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

Definitions

  • a mobile material handling structure such as a bucket wheel stacker and reclaimer having a carriage on which is a turntable structure comprising the turntable itself, [52] U.S. Cl ..198/36, 37/190 B, 212/49, i a mast a load boom pivoted to Swing in a vertical are, and 214/142 a counterweight at the end of a pivoted strut that extends out [51] Int. Cl ..B66c 23/72 beyond the turntable in a direction diametrically opposite the [58] Field of Search ..214/ 10, I42; 212/48, 49; load boom.
  • the center of mass of the counterweight is roughly UNITED S TES PAT NTS about as far from the center of rotation of the table as the center of mass of the load boom so that the moment arms 3,5 Naruns ..2 X through the two masses are effective to counterbalance 3 ,266,636 3/1966 Dorn ..2 12/49 X each other are approximately equal at all times.
  • this condition is avoided by providing an outrigger on the mast extending laterally from the mast in a direction diametrically opposite the. boom.
  • a cable attached to the weight is guided over a sheave on the outrigger and over another sheave on the mast with its other end attached to the boom.
  • the weight serves the dual purpose of counterbalancing the weight of the boom in its normal luffing motion, that is, its raising and lowering motion, while also providing the counterweight to equalize the forces on the mast and turntable.
  • the cage or guideway on the outrigger is a cumbersome arrangement, and the guides for the counterweight are exposed to weather and dust and must be kept lubricated.
  • the counterweight may move in a limited distance in the cage, and only at certain times may it travel close to one end or the other of its guides so that these portions of the guides may be neglected or become a possible cause of the counterweight failing to move freely at some critical time.
  • the moment arm through which the weight is effective is fixed since the weight moves vertically, whereas the moment arm of the center of mass of the boom constantly changes as the boom moves toward or away from a horizontal position.
  • the further a weight is moved horizontally away from the center of the turntable the longer is the lever through which the weight is effective to tilt the table, and the nearer the weight is moved horizontally toward the center of the table, the shorter the leverage and the less the tilting effect.
  • the counterweight on the outrigger as disclosed in said copending application is always the same distance horizontally from the center or center axis of the turntable so that its counterbalancing effect cannot shift as the effective weight of the boom shifts.
  • the present invention is designed to simplify the construction and 'reduce maintenance and reduce the likelihood of malfunctioning. Moreover it provides an arrangement to preserve a more nearly uniform balance between the boom and the counterbalance wherein the moment arm through which the counterweight is effective changes generally in proportion to the shifting of the moment arm of the center of weight of the boom.
  • the counterweight is at the outer end of a strut which is pivoted to the mast to move in a vertical arc, and there is a cable connected with the counterweight, the cable passing over one or more sheaves on the mast structure and its other end is attached to the load boom.
  • the pivoted strut with the counterweight therefore swings down as the load boom is raised, and vice versa.
  • the distance of the counterweight from the center of the table is roughly comparable to the distance from the center of the table to the center of weight of the load boom, so that both are effective through moment arms of comparable lengths.
  • the counterweight will keep the cable taut if the work boom comes to rest on the ground or heap of material to prevent any substantial uneven distribution of the load to one side of the turntable or mast. It likewise serves a second function of counterbalancing the boom in its luffing motion.
  • the Figure is a side elevation of a bucket wheel bulk material stacker and reclaimer.
  • the stacker and reclaimer designated generally as 10. It comprises a mobile carriage 11. On the carriage there is a turntable assembly comprising a fixed circular track 12 and a rotatable table 13 with intervening bearings (not shown), this part of the assembly being conventional and well known in the art. Typically a turntable in a machine of this type may be of the order of 18 feet in diameter, a dimension that is mentioned merely as an indication of the massive size and weight of the structure here involved. There is a vertically extending mast 14 mounted on the turntable, the mast as here shown being a socalled C-type of mast, the base of which is eccentrically positioned on the table 13.
  • a load boom 15 extends through the mast and is pivotally supported on the turntable at 16 for movement in a vertical arc. It has a bucket wheel 17 at its outer end, this arrangement also being known in the art, although in many cases an equivalent arrangement is provided where the boom is pivoted to the mast itself, as shown for example in the Naruns application.
  • a usual conveyor belt is indicated in broken lines at 17 for use in the movement of material between the bucket wheel and the carriage.
  • a tripper is indicated at 17a. Such an arrangement is known in the art and the C-type mast is used to clear the tripper as the turntable rotates.
  • a cantilever section 18 on the mast extending in a direction diametrically opposite the direction in which the boom extends.
  • a power-driven winch or luffing drum 20 from which luffing cables 21 are reeved around sheaves 22 on the mast and sheaves 23 on the boom, the end of the cable being dead-ended on either the load boom or the mast. Operation of the luffing drum raises or lowers the load boom in the usual way.
  • a counterweight 25 to which is attached a cable 26 that passes over a sheave 27 on the mast cantilever section and over a sheave 29 on post 30 extending up from the mast with its other end anchored to the boom at 31, preferably at a point beyond the sheaves 23 for the luffing cable.
  • the counterweight is secured to the outer end of pivoted strut 32 that is carried by some part of the turntable assembly, usually being pivoted to the mast structure where it clears the tripper 17a. It is here shown pivoted on the cantilever portion 18 at pivot 33 which is located on the underside of the cantilever portion 18.
  • the cable 26 will cause the counterweight 25 with its pivoted strut 32 to also swing in a vertical arc, but it lowers as the load boom raises, and vice versa. Therefore the long axis of the load boom and the long axis of the strut are at all times at roughly equal but opposite angles to the central axis of the turntable.
  • the center of mass of the boom is assumed, for purpose of illustration to be about as far from the center axis of the turntable as the sheave 23 in the diagram, and the center of the counterweight 25 is about the same distance from said axis, the moment arms through which each mass is effective as the load boom swings up or down from horizontal will be about the same.
  • the invention not only eliminates the need for a vertical guide cage for the counterweight, but compensates to a considerable extent for the change in the effect of the increasing or decreasing length of the moment arm of the mass of the boom as it raises and lowers.
  • the counterweight 25 continues to counterbalance the normal luffing action of the boom.
  • the counterweight 25 along with cantilever section 18 is effective to counterbalance the boom so that the forces on the mast and turntable are for practical purposes counterbalanced.
  • a turntable assembly on the carriage comprising a turntable, a mast structure on the turntable, a load boom pivotally connected with the turntable for movement in a vertical arc and a hoisting drum and cable for raising and lowering the load boom, the invention comprising:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
US55889A 1970-07-17 1970-07-17 Material handling apparatus Expired - Lifetime US3653486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5588970A 1970-07-17 1970-07-17

Publications (1)

Publication Number Publication Date
US3653486A true US3653486A (en) 1972-04-04

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ID=22000830

Family Applications (1)

Application Number Title Priority Date Filing Date
US55889A Expired - Lifetime US3653486A (en) 1970-07-17 1970-07-17 Material handling apparatus

Country Status (3)

Country Link
US (1) US3653486A (enExample)
DE (1) DE2134530A1 (enExample)
FR (1) FR2099431B1 (enExample)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197807A1 (enExample) * 1972-09-05 1974-03-29 Celio Hermes
US3963133A (en) * 1974-01-16 1976-06-15 Societe Anonyme: Poclain Public works machine having a removable counterweight and method of dismantling said counterweight
US3998336A (en) * 1974-09-27 1976-12-21 Hans Tax Crane with compensating counterweight
EP0071796A1 (de) * 1981-08-08 1983-02-16 Karl Schaeff GmbH & Co. Knicklenker mit querverschiebbarem Gegengewicht
US4402413A (en) * 1981-11-19 1983-09-06 J. I. Case Company Counterweight arrangement
US4449634A (en) * 1980-07-04 1984-05-22 Enterprises Buzzichelli Hoisting assembly with a boom and a counterweight having adjustable respective positions
EP0164191A1 (en) * 1984-04-12 1985-12-11 Drg (Uk) Limited Stacker-reclaimer
US5222613A (en) * 1991-09-24 1993-06-29 Mcghie James R Pivotally-mounted reeved counterweight system
US5533284A (en) * 1992-10-07 1996-07-09 O&K Orenstein & Koppel Ag Earth-moving machine with revolving tower and adjustable counterweight
US20030173431A1 (en) * 2002-03-18 2003-09-18 Kevin Hood Reclaimer device and method thereof
US20100314214A1 (en) * 2009-06-11 2010-12-16 Benjamin Boyce Apparatus for Stacking and Reclaiming Material
US20110132719A1 (en) * 2009-12-03 2011-06-09 Flsmidth Rahco Inc. Conveyor Apparatus
CN103863844A (zh) * 2014-03-18 2014-06-18 临沂大北农饲料有限公司 集装箱自动卸料机
US9334124B2 (en) 2014-05-23 2016-05-10 Ty-Crop Manufacturing Ltd. Material handling conveyor vehicle
WO2016127114A1 (en) * 2015-02-06 2016-08-11 Harnischfeger Technologies, Inc. Raised counterweight for a mining machine
US9428348B2 (en) 2010-10-21 2016-08-30 Ty-Crop Manufacturing Ltd. Mobile material handling and metering system
US20170071140A1 (en) * 2015-09-10 2017-03-16 Komatsu Ltd. Work vehicle
US9643789B2 (en) 2014-06-09 2017-05-09 Ty-Crop Manufacturing Ltd. Control system for material handling conveyor vehicle
US9957108B2 (en) 2015-06-08 2018-05-01 Continental Intermodal Group-Trucking Llc Conveyor transition for material handling
US20180186581A1 (en) * 2015-06-26 2018-07-05 Kilic Inventions Pty Ltd Improvements relating to the stacking and reclaiming of bulk materials
CN110775840A (zh) * 2019-10-31 2020-02-11 三一汽车起重机械有限公司 一种配重平移组件及起重机
CN111646234A (zh) * 2019-11-27 2020-09-11 泰富重工制造有限公司 一种堆取料机用拉杆结构
US20220074167A1 (en) * 2019-02-14 2022-03-10 Ihc Holland Ie B.V. Counterweight Backhoe dredger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427278A1 (fr) * 1978-05-31 1979-12-28 Fives Cail Babcock Dispositif pour la manutention de materiaux
EP0190038B1 (en) * 1985-01-29 1990-08-22 THE CSL Group Inc. Apparatus for reclaiming bulk solid material from a container
CN109335972A (zh) * 2018-12-18 2019-02-15 浙江三装备有限公司 自装卸装置、起重机构、起重机、配重安装及拆卸方法
CN110005001A (zh) * 2019-05-09 2019-07-12 汪梦林 电动正铲挖掘机节能装置
CN116374846A (zh) * 2021-12-23 2023-07-04 河北安诺自动化科技有限公司 酸雾房自动吊架机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413966A (fr) * 1964-08-27 1965-10-15 Grue à bras en porte-à-faux, munie d'un contrepoids sur bras mobile dont la position est fonction de la charge à soulever
US3266636A (en) * 1965-06-30 1966-08-16 Arrow Mfg Company Automatically counterbalanced tractor side-boom crane
DE1229913B (de) * 1965-09-15 1966-12-01 Pohlig Heckel Bleichert Absetz- und Aufnahmegeraet fuer Schuettgueter
US3530999A (en) * 1967-12-01 1970-09-29 Dravo Corp Safety device for materials handling structures

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968659C (de) * 1952-06-17 1958-03-13 Eisen & Stahlind Ag Schaufelradbagger
DE1054926B (de) * 1954-01-20 1959-04-09 Eisen & Stahlind Ag Bagger, z. B. Schaufelrad- oder Eimerkettenbagger, mit einem schweren Arbeitsausleger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413966A (fr) * 1964-08-27 1965-10-15 Grue à bras en porte-à-faux, munie d'un contrepoids sur bras mobile dont la position est fonction de la charge à soulever
US3266636A (en) * 1965-06-30 1966-08-16 Arrow Mfg Company Automatically counterbalanced tractor side-boom crane
DE1229913B (de) * 1965-09-15 1966-12-01 Pohlig Heckel Bleichert Absetz- und Aufnahmegeraet fuer Schuettgueter
US3530999A (en) * 1967-12-01 1970-09-29 Dravo Corp Safety device for materials handling structures

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197807A1 (enExample) * 1972-09-05 1974-03-29 Celio Hermes
US3879077A (en) * 1972-09-05 1975-04-22 Hermes George Celio Lifting apparatus
US3963133A (en) * 1974-01-16 1976-06-15 Societe Anonyme: Poclain Public works machine having a removable counterweight and method of dismantling said counterweight
US3998336A (en) * 1974-09-27 1976-12-21 Hans Tax Crane with compensating counterweight
US4449634A (en) * 1980-07-04 1984-05-22 Enterprises Buzzichelli Hoisting assembly with a boom and a counterweight having adjustable respective positions
EP0071796A1 (de) * 1981-08-08 1983-02-16 Karl Schaeff GmbH & Co. Knicklenker mit querverschiebbarem Gegengewicht
US4402413A (en) * 1981-11-19 1983-09-06 J. I. Case Company Counterweight arrangement
EP0164191A1 (en) * 1984-04-12 1985-12-11 Drg (Uk) Limited Stacker-reclaimer
US4664271A (en) * 1984-04-12 1987-05-12 Drg (Uk) Limited Stacker-reclaimer including counterbalance weight
US5222613A (en) * 1991-09-24 1993-06-29 Mcghie James R Pivotally-mounted reeved counterweight system
US5533284A (en) * 1992-10-07 1996-07-09 O&K Orenstein & Koppel Ag Earth-moving machine with revolving tower and adjustable counterweight
US20030173431A1 (en) * 2002-03-18 2003-09-18 Kevin Hood Reclaimer device and method thereof
US8534443B2 (en) 2009-06-11 2013-09-17 Flsmidth A/S Apparatus for stacking and reclaiming material
US8376125B2 (en) 2009-06-11 2013-02-19 Flsmidth A/S Apparatus for stacking and reclaiming material
US20100314214A1 (en) * 2009-06-11 2010-12-16 Benjamin Boyce Apparatus for Stacking and Reclaiming Material
WO2011067727A1 (en) 2009-12-03 2011-06-09 Flsmidth A/S Conveyor apparatus
US8251199B2 (en) 2009-12-03 2012-08-28 Flsmidth A/S Conveyor apparatus
US8348044B2 (en) 2009-12-03 2013-01-08 Flsmidth A/S Conveyor apparatus
US20110132719A1 (en) * 2009-12-03 2011-06-09 Flsmidth Rahco Inc. Conveyor Apparatus
US9428348B2 (en) 2010-10-21 2016-08-30 Ty-Crop Manufacturing Ltd. Mobile material handling and metering system
CN103863844A (zh) * 2014-03-18 2014-06-18 临沂大北农饲料有限公司 集装箱自动卸料机
US9334124B2 (en) 2014-05-23 2016-05-10 Ty-Crop Manufacturing Ltd. Material handling conveyor vehicle
US9499348B2 (en) 2014-05-23 2016-11-22 Ty-Crop Manufacturing Ltd. Material handling conveyor vehicle
US9643789B2 (en) 2014-06-09 2017-05-09 Ty-Crop Manufacturing Ltd. Control system for material handling conveyor vehicle
WO2016127114A1 (en) * 2015-02-06 2016-08-11 Harnischfeger Technologies, Inc. Raised counterweight for a mining machine
CN107407071B (zh) * 2015-02-06 2020-03-20 久益环球地表采矿公司 用于挖掘铲车的提升的配重
US9587377B2 (en) * 2015-02-06 2017-03-07 Harnischfeger Technologies, Inc. Raised counterweight for a mining machine
CN107407071A (zh) * 2015-02-06 2017-11-28 哈尼斯菲格技术公司 用于挖掘铲车的提升的配重
US9957108B2 (en) 2015-06-08 2018-05-01 Continental Intermodal Group-Trucking Llc Conveyor transition for material handling
US10457505B2 (en) * 2015-06-26 2019-10-29 Kilic Inventions Pty Ltd Improvements relating to the stacking and reclaiming of bulk materials
US20180186581A1 (en) * 2015-06-26 2018-07-05 Kilic Inventions Pty Ltd Improvements relating to the stacking and reclaiming of bulk materials
US10362738B2 (en) * 2015-09-10 2019-07-30 Komatsu Ltd. Work vehicle
US20170071140A1 (en) * 2015-09-10 2017-03-16 Komatsu Ltd. Work vehicle
US20220074167A1 (en) * 2019-02-14 2022-03-10 Ihc Holland Ie B.V. Counterweight Backhoe dredger
CN110775840A (zh) * 2019-10-31 2020-02-11 三一汽车起重机械有限公司 一种配重平移组件及起重机
CN110775840B (zh) * 2019-10-31 2021-05-07 三一汽车起重机械有限公司 一种配重平移组件及起重机
CN111646234A (zh) * 2019-11-27 2020-09-11 泰富重工制造有限公司 一种堆取料机用拉杆结构

Also Published As

Publication number Publication date
FR2099431B1 (enExample) 1976-03-19
FR2099431A1 (enExample) 1972-03-17
DE2134530A1 (de) 1972-01-20

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