EP0056769A2 - Appareil de manutention de matériaux à contrepoids amovible - Google Patents

Appareil de manutention de matériaux à contrepoids amovible Download PDF

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Publication number
EP0056769A2
EP0056769A2 EP82400085A EP82400085A EP0056769A2 EP 0056769 A2 EP0056769 A2 EP 0056769A2 EP 82400085 A EP82400085 A EP 82400085A EP 82400085 A EP82400085 A EP 82400085A EP 0056769 A2 EP0056769 A2 EP 0056769A2
Authority
EP
European Patent Office
Prior art keywords
counterweight
handling apparatus
material handling
support means
resting surface
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.)
Withdrawn
Application number
EP82400085A
Other languages
German (de)
English (en)
Other versions
EP0056769A3 (fr
Inventor
Albert W. Mcrobie
Patrick T. Hogan
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.)
Warner and Swasey Co
Original Assignee
Warner and Swasey Co
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 Warner and Swasey Co filed Critical Warner and Swasey Co
Publication of EP0056769A2 publication Critical patent/EP0056769A2/fr
Publication of EP0056769A3 publication Critical patent/EP0056769A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • 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

Definitions

  • This invention relates generally to a counterweight for a material handling or similar type of apparatus. More specifically, the instant invention relates to a counterweight comprising an enclosing structure filled with an iron ore and fixedly attached to the material handling apparatus in two orthogonal planes.
  • Counterweights for material handling apparatus constructed using a filled containing structure are well known in the art as exemplified by U.S. Patent No. 860 205 to Fleming et al, U.S. Patent No. 4 032 016 to Graf, and U.S. Patent No. 2 763 385 to Harrison.
  • the above noted patents disclose material handling apparatus employing a counterweight which is constructed of a generally hollow member which is designed to receive a weighting means in order to provide the weight necessary for the proper operation of the material handling apparatus.
  • the use of iron or an iron ore as a weighting substance is also well known in the art as exemplified by U.S. Patent No. 87 209 to Shaw and U.S. Patent No. 3 008 389 ti Hicks.
  • the patent to Hicks discloses the use of an iron ore as a ballast in earth compacting equipment.
  • the present invention proposes a material handling apparatus having a removable counterweight with means for removably attaching a counterweight to said material handling apparatus, characterized in that it comprises a first support means affixed to said material handling apparatus, a second support means affixed to said material handling apparatus in proximity to said first support means, a counterweight structure having a first resting surface and a second resting surface wherein said first resting surface is adapted to be supported by said first support means and said second resting surface is adapted to be supported adjacent said second support means.
  • the present invention relates to a counterweight structure comprised of a generally hollow structural member adapted to receive a granular weighting means.
  • the generally hollow structural member is, in the preferred embodiment, fabricated from steel plate and has means for attaching the generally hollow structural member to a material handling apparatus in two orthogonal planes.
  • the first plane for attaching the counterweight to the material handling apparatus is the bottom of the counterweight and the second plane for attaching the counterweight to the material handling apparatus is a plane orthogonal to the first plane and adjacent to both the counterweight and the material handling apparatus.
  • a material handling apparatus 10 particularly adapted to excavate earth.
  • the material handling apparatus is comprised of an upperstructure designated 11 and a carrier 12 having motive means.
  • the upperstructure 11 is fixed to the carrier 12 in such a manner as to allow rotation of the upperstructure 11 on the carrier 12.
  • the carrier 12 allows the material handling apparatus to be transported to various job locations under its own power.
  • the use of a carrier to transport a rotating upperstructure is well known in the art as exemplied by the Gradall Hydraulic Excavator manufactured by The Warner & Swasey Company, New Philadelphia, Ohio, and more fully disclosed in the Gradall Model G-660 Service Manual and the Model G-1000 Service Manual, both of which are specifically incorporated by reference herein.
  • the counterweight 121 is comprised of a generally hollow structural member comprised in the preferred embodiment of steel plates' welded together.
  • the counterweight 121 is generally elongated and is adapted to attach to a material handling apparatus by means of tapped bosses 122.
  • the counterweight 121 may be moved utilizing lifting eyes 123.
  • the generally hollow counterweight construction is provided with additional weight by means of filling the counterweight 121 with an iron ore through opening 124, shown here with cover 125 welded over the opening 124.
  • the counterweight 121 is comprised of a bottom supporting plate 131 having three tapped bosses 122 welded thereto. Welded to the bottom plate 131 is back plate 132 which has a portion thereof cut out to provide opening 124 through which the weighting material is put into the counterweight 121. After the weighting material has been placed in the counterweight 121 the opening 124 is shut with welded,cover 125.
  • front plate 133 Attached to the bottom plate 131 and the back plate 132 is front plate 133. It should be noted that the front plate 133 has slots 134 provided therein for mounting lifting eyes 123 which are shown in more detail in Figure 4 of the drawings.
  • mounting plate 136 Affixed to the bottom plate 131 and the front plate 133 is mounting plate 136 which has two bosses welded thereto for securing the counterweight 121 to a material handling apparatus.
  • the lifting eye 123 is comprised of a somewhat T-shaped piece of steel plate adapted to fit in a slot 134 in the top plate 133, with projections 135 extending past slot 134.
  • the lifting eye 123 has an opening 137 therein in order to faciliate lifting of the counterweight.
  • the lifting eye 123 is welded to the counterweight 121.
  • the tapped bosses 122 are comprised of generally cylindrical pieces of steel having a reduced section on one end to facilitate mounting on a receiving hole in the counterweight -121.
  • the frame of the upperstructure 11 is comprised of a main bottom member 161 to which is affixed back plate 162. Affixed to both the back plate 162 and bottom member 161 are longitudinal plates 163 and 164. As may be readily seen, there are holes in the back plate 162 and the bottom member 161 through which the threaded portion of bolts 151 may pass in order to engage the threaded holes 141 in tapped bosses 122 to secure the counterweight 121 to the upperstructure 11.
  • the instant invention provides a safer counterweight design over the conventional design wherein a solid cast iron member is bolted to a vertically disposed frame member.
  • the weighting material which is'used to fill the generally hollow structural counterweight 121 is a specular hematite (iron ore) which is sold by the United States Steel Corporation of Pittsburgh, Pennsylvania under the name QCM Concentrate.
  • specular hematite iron ore
  • the specular hematite has a crystalline structure which results in the particle surfaces being hard and smooth and not likely to absorb moisture. Even after exposure to heaby precipitation, the moisture in the concentrate will drain off to about a three percent level in a relatively short time.
  • the specific gravity of QCM Concentrate is in the range of 4.9 to 5.1.
  • the compacted bulk density is approximately 3,4 tons per m 3 (Cement has a bulk density of approximately 2,3 tons per m 3 and costs approximately twice as much per ton as specular hematite).
  • specular hematite Its hardness on the MOH scale ranges from 5.5. to 6.5. Since the specular hematite is a stable oside of iron it does not react with' water and will not further oxidize at normal temperatures, nor is it corrosive to any container in which it might be placed. The specular hematite typically contains 2.3 percent plus 20 mesh and 2.1 percent minus 150 mesh material. It should be appreciated that the specular hematite may be mixed with cement or other weighting substances.
  • the counterweight 121 is then stood on end and the specular hematite is poured into the counterweight in sufficient quantity to provide the weight desired. It may be noted that due to the nature of the weighting material, it is quite easy to vary the amount of material inserted in the generally hollow structural member 121 and therefore the weight of the counterweight.
  • the rectangular opening 124 is then welded shut with a correspondingly shaped cover 125.

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)
  • Component Parts Of Construction Machinery (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP82400085A 1981-01-19 1982-01-18 Appareil de manutention de matériaux à contrepoids amovible Withdrawn EP0056769A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22702181A 1981-01-19 1981-01-19
US227021 1981-01-19

Publications (2)

Publication Number Publication Date
EP0056769A2 true EP0056769A2 (fr) 1982-07-28
EP0056769A3 EP0056769A3 (fr) 1983-09-14

Family

ID=22851418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400085A Withdrawn EP0056769A3 (fr) 1981-01-19 1982-01-18 Appareil de manutention de matériaux à contrepoids amovible

Country Status (2)

Country Link
EP (1) EP0056769A3 (fr)
JP (1) JPS57140441A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110329929A (zh) * 2019-08-01 2019-10-15 湖南星沙机床设备有限公司 一种配重块及其喷涂方法
CN114877021A (zh) * 2022-05-20 2022-08-09 长沙天盾重工有限责任公司 配重件、配重装配工具、配重装配方法及高空作业车

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325089A (en) * 1941-09-08 1943-07-27 Thew Shovel Co Removable counterweight for excavating and load handling machines
US3533524A (en) * 1968-10-28 1970-10-13 Bucyrus Erie Co Counterweight removal arrangement for hydraulic excavators or the like
US3795330A (en) * 1972-05-18 1974-03-05 Caterpillar Tractor Co Counterweight suspension device
US3853231A (en) * 1972-08-21 1974-12-10 Caterpillar Tractor Co Vehicle counterweight apparatus
DE2543683A1 (de) * 1975-09-30 1977-04-07 Linde Ag Ballastgewicht

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110329929A (zh) * 2019-08-01 2019-10-15 湖南星沙机床设备有限公司 一种配重块及其喷涂方法
CN110329929B (zh) * 2019-08-01 2023-11-03 湖南星沙机床设备有限公司 一种配重块及其喷涂方法
CN114877021A (zh) * 2022-05-20 2022-08-09 长沙天盾重工有限责任公司 配重件、配重装配工具、配重装配方法及高空作业车

Also Published As

Publication number Publication date
JPS57140441A (en) 1982-08-31
EP0056769A3 (fr) 1983-09-14

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Effective date: 19840315

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOGAN, PATRICK T.

Inventor name: MCROBIE, ALBERT W.