EP2426078A2 - High-density counterweight - Google Patents

High-density counterweight Download PDF

Info

Publication number
EP2426078A2
EP2426078A2 EP11180053A EP11180053A EP2426078A2 EP 2426078 A2 EP2426078 A2 EP 2426078A2 EP 11180053 A EP11180053 A EP 11180053A EP 11180053 A EP11180053 A EP 11180053A EP 2426078 A2 EP2426078 A2 EP 2426078A2
Authority
EP
European Patent Office
Prior art keywords
counterweight
block
density
counterweights
aggregate
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Withdrawn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
EP11180053A
Other languages
German (de)
French (fr)
Other versions
EP2426078A3 (en
Inventor
Jon Ander Peñagaricano García
Manuel Delgado García
Esteban Garmendia Izaguirre
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.)
D-3 Ingeniera Y Desarrollo SL
Original Assignee
D-3 Ingeniera Y Desarrollo SL
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 D-3 Ingeniera Y Desarrollo SL filed Critical D-3 Ingeniera Y Desarrollo SL
Publication of EP2426078A2 publication Critical patent/EP2426078A2/en
Publication of EP2426078A3 publication Critical patent/EP2426078A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • 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

  • the present invention relates to the counterweights used to compensate for strains, to determine stresses and other similar functions in applications such as tower cranes, overhead railway lines, agricultural vehicles susceptible to overturning, etc., proposing a cost-effective, high-density counterweight protected against temperature, weathering, aging and mechanical aggressions, and further having a surface suitable for applying inscriptions.
  • Counterweights are widely used for different functions, ranging from preventing overturning in agricultural vehicles or in tower cranes to tensing wires in overhead lines such as those used in railways.
  • the concrete counterweights are inexpensive but have a very low density of about 3 kg/l, whereby they are very bulky, not being suitable for certain applications in which the dimensions of the counterweight must be small, such as for example in tensing wires of overhead railway lines for highspeed trains, or in places where there is little available space, such as in agricultural vehicles.
  • Concrete counterweights are furthermore fragile with respect to certain impacts and strains to which they are usually subjected in practice, such that to solve this drawback reinforcement elements are often inserted in the concrete, which substantially raises the cost of the end product.
  • the shape of the counterweights must often be adapted to the structures to which they are coupled and in the case of concrete counterweights, it is expensive to manufacture them with complicated shapes.
  • Iron or steel counterweights in turn, can be made in more complex shapes and have a much smaller volume than those of concrete because their density is much greater, being able to reach 7.8 kg/l, but their price is very high due to the fact that the material from which they are made is expensive.
  • the value of the material for building counterweights of this type further favors them being stolen on many occasions when they are arranged in accessible places, such as in overhead railway lines, which causes significant problems in the line and serious risks for those who try to steal the counterweights.
  • a type of counterweight is also known in the industry which is made of metal residues from the iron and steel industry, which are mixed with a binder such as cement to obtain a seamless piece, thereby resulting in a high-density counterweight at a low cost which furthermore dissuades the theft thereof because the materials forming it have little value.
  • the surface of counterweights of this type has a di stribution of several types of materials, in which those metal elements which can rust appear on the surface, said surface being rather unsuitable for bearing inscriptions because they are difficult to engrave and paint falls off, while impressions are barely seen because they have light and dark areas.
  • the final finish of the counterweight is furthermore easily attacked by weathering, whereby this type of counterweight is not suitable for specific applications requiring certain aesthetic conditions.
  • the binder for forming them adheres to the mold, whereby it is complicated to demold the piece, it being necessary to apply special treatments on the surface of the mold to aid in demolding.
  • a high-density counterweight is proposed, of the type formed by metal elements from iron and steel waste immersed in a binder, forming a block on which a protective covering is incorporated, advantageous functional features being obtained because the aggregated body of the mold is protected against temperature, weathering and mechanical aggressions, maintaining an unchanging appearance over time with the possibility of suitably applying inscriptions on the surface.
  • This counterweight object of the invention is formed by a block made up of high-density metal elements integrated in a binder, a plastic covering protecting the aggregate being arranged on said block.
  • the metal elements integrated in the aggregate of the block of the counterweight are small pieces of metal coming from waste from the iron and steel industry, residual shot, chips from machining processes, etc.
  • the binder of the aggregate is made up of a conventional fixing material, such as concrete, resin or plastic which, together with the metal elements, forms a unit block.
  • the counterweight is a high-density counterweight, around 6 kg/l, having a layer of outer covering which prevents the metal materials of the aggregate block from coming up to the exterior and being able to rust such that the aggregate block of the counterweight is protected against environmental aggressions, the outer covering being able to have the desired color, its appearance and integrity being maintained over time.
  • the outer surface formed by the plastic covering is a structurally uniform surface where impressions indicating the weight of the counterweight, the manufacturer's data, the CE mark, etc., can be applied.
  • the plastic covering holds the assembly together without the parts of the aggregate block becoming separated.
  • the molding manufacture is considerably simplified because the plastic covering does not adhere to the mold and therefore aids the demolding process, preventing the problem posed in this sense by molding the aggregate block without a covering because the binder sticks to the mold, making it necessary to apply a non-stick coating.
  • this counterweight object of the invention accordingly having truly advantageous features, acquiring its own identity and preferred character with respect to conventional counterweights for the same applications.
  • the object of the invention relates to a counterweight of the type formed by a block (1) made up of metal elements (2) aggregated by a binder (3), with an implementation that forms an external protection of the aggregate block (1) and allows suitably applying inscriptions on the outer surface.
  • the proposed counterweight consists of a block (1) formed by metal elements (2) made up of small pieces of metal materials aggregated by a binder (3), a preferably plastic outer covering (4) being arranged on said block (1).
  • the metal elements (2) used in forming the block (1) are pieces of metal coming from waste from the iron and steel industries, such as residual chips from cutting, shot-blasting byproducts, metal working residues, etc., while the binder (3) can be any type of material suitable for compacting an aggregate, such as concrete, cement, plastic, resin, etc.
  • the outer covering (4) arranged on the aggregate block (1) is preferably made of plastic, such as polyethylene, said outer covering (4) completely enveloping the aggregate block (1) such that it is protected against environmental aggressions and blows, preventing the metal elements (2) from coming to the surface of said block (1), rusting and deteriorating the aesthetics, in addition to preventing corrosion from altering the counterweight.
  • Said outer covering (4) further prevents in the event that the block (1) breaks the parts therein from becoming separated; in turn determining a structurally uniform outer surface on which inscriptions can be suitably applied by means of engraving, painting or impression.
  • the proposed counterweight can adopt any configuration depending on the application for which it is intended, such as for example the embodiment depicted in Figures 3 and 4 , as a counterweight for an overhead railway line, without this embodiment being limiting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)

Abstract

The present invention relates to a high-density counterweight formed by a block (1) made up of metal elements (2) aggregated by a binder (3), an outer protective covering (4) being arranged on said block (1).

Description

    Field of the Art
  • The present invention relates to the counterweights used to compensate for strains, to determine stresses and other similar functions in applications such as tower cranes, overhead railway lines, agricultural vehicles susceptible to overturning, etc., proposing a cost-effective, high-density counterweight protected against temperature, weathering, aging and mechanical aggressions, and further having a surface suitable for applying inscriptions.
    • State of the Art
  • Counterweights are widely used for different functions, ranging from preventing overturning in agricultural vehicles or in tower cranes to tensing wires in overhead lines such as those used in railways.
  • There are basically two types of counterweights today according to the material used to manufacture them, and they are those made of concrete and those made of iron or steel.
  • The concrete counterweights are inexpensive but have a very low density of about 3 kg/l, whereby they are very bulky, not being suitable for certain applications in which the dimensions of the counterweight must be small, such as for example in tensing wires of overhead railway lines for highspeed trains, or in places where there is little available space, such as in agricultural vehicles.
  • Concrete counterweights are furthermore fragile with respect to certain impacts and strains to which they are usually subjected in practice, such that to solve this drawback reinforcement elements are often inserted in the concrete, which substantially raises the cost of the end product.
  • In addition, the shape of the counterweights must often be adapted to the structures to which they are coupled and in the case of concrete counterweights, it is expensive to manufacture them with complicated shapes.
  • Iron or steel counterweights, in turn, can be made in more complex shapes and have a much smaller volume than those of concrete because their density is much greater, being able to reach 7.8 kg/l, but their price is very high due to the fact that the material from which they are made is expensive. The value of the material for building counterweights of this type further favors them being stolen on many occasions when they are arranged in accessible places, such as in overhead railway lines, which causes significant problems in the line and serious risks for those who try to steal the counterweights.
  • A type of counterweight is also known in the industry which is made of metal residues from the iron and steel industry, which are mixed with a binder such as cement to obtain a seamless piece, thereby resulting in a high-density counterweight at a low cost which furthermore dissuades the theft thereof because the materials forming it have little value.
  • However, the surface of counterweights of this type has a di stribution of several types of materials, in which those metal elements which can rust appear on the surface, said surface being rather unsuitable for bearing inscriptions because they are difficult to engrave and paint falls off, while impressions are barely seen because they have light and dark areas.
  • The final finish of the counterweight is furthermore easily attacked by weathering, whereby this type of counterweight is not suitable for specific applications requiring certain aesthetic conditions.
  • In turn, in the molding manufacture of these counterweights, the binder for forming them adheres to the mold, whereby it is complicated to demold the piece, it being necessary to apply special treatments on the surface of the mold to aid in demolding.
    • Object of the Invention
  • According to the present invention a high-density counterweight is proposed, of the type formed by metal elements from iron and steel waste immersed in a binder, forming a block on which a protective covering is incorporated, advantageous functional features being obtained because the aggregated body of the mold is protected against temperature, weathering and mechanical aggressions, maintaining an unchanging appearance over time with the possibility of suitably applying inscriptions on the surface.
  • This counterweight object of the invention is formed by a block made up of high-density metal elements integrated in a binder, a plastic covering protecting the aggregate being arranged on said block.
  • The metal elements integrated in the aggregate of the block of the counterweight are small pieces of metal coming from waste from the iron and steel industry, residual shot, chips from machining processes, etc.
  • The binder of the aggregate is made up of a conventional fixing material, such as concrete, resin or plastic which, together with the metal elements, forms a unit block.
  • Therefore, the counterweight is a high-density counterweight, around 6 kg/l, having a layer of outer covering which prevents the metal materials of the aggregate block from coming up to the exterior and being able to rust such that the aggregate block of the counterweight is protected against environmental aggressions, the outer covering being able to have the desired color, its appearance and integrity being maintained over time.
  • The outer surface formed by the plastic covering is a structurally uniform surface where impressions indicating the weight of the counterweight, the manufacturer's data, the CE mark, etc., can be applied.
  • Furthermore, in the event that the aggregate block of the counterweight breaks, the plastic covering holds the assembly together without the parts of the aggregate block becoming separated.
  • In addition, the molding manufacture is considerably simplified because the plastic covering does not adhere to the mold and therefore aids the demolding process, preventing the problem posed in this sense by molding the aggregate block without a covering because the binder sticks to the mold, making it necessary to apply a non-stick coating.
  • Therefore, a cost-effective high-density counterweight with features making it long-lasting and aesthetic is obtained, this counterweight object of the invention accordingly having truly advantageous features, acquiring its own identity and preferred character with respect to conventional counterweights for the same applications.
    • Description of the Drawings
    • Figure 1 shows a schematic depiction of a section of a counterweight made according to the object of the invention.
    • Figure 2 shows a perspective view of a practical embodiment of the proposed counterweight.
    • Figure 3 is a side view of the counterweight of the preceding figure.
    • Figure 4 is a view corresponding to section IV-IV indicated in the preceding figure.
    Detailed Description of the Invention
  • The object of the invention relates to a counterweight of the type formed by a block (1) made up of metal elements (2) aggregated by a binder (3), with an implementation that forms an external protection of the aggregate block (1) and allows suitably applying inscriptions on the outer surface.
  • The proposed counterweight consists of a block (1) formed by metal elements (2) made up of small pieces of metal materials aggregated by a binder (3), a preferably plastic outer covering (4) being arranged on said block (1).
  • The metal elements (2) used in forming the block (1) are pieces of metal coming from waste from the iron and steel industries, such as residual chips from cutting, shot-blasting byproducts, metal working residues, etc., while the binder (3) can be any type of material suitable for compacting an aggregate, such as concrete, cement, plastic, resin, etc.
  • The outer covering (4) arranged on the aggregate block (1) is preferably made of plastic, such as polyethylene, said outer covering (4) completely enveloping the aggregate block (1) such that it is protected against environmental aggressions and blows, preventing the metal elements (2) from coming to the surface of said block (1), rusting and deteriorating the aesthetics, in addition to preventing corrosion from altering the counterweight.
  • Said outer covering (4) further prevents in the event that the block (1) breaks the parts therein from becoming separated; in turn determining a structurally uniform outer surface on which inscriptions can be suitably applied by means of engraving, painting or impression.
  • With this embodiment comprising an aggregate block (1) with an outer covering (4) thereon, the proposed counterweight can adopt any configuration depending on the application for which it is intended, such as for example the embodiment depicted in Figures 3 and 4, as a counterweight for an overhead railway line, without this embodiment being limiting.

Claims (3)

  1. A high-density counterweight, consisting of a block (1) formed by residual metal elements (2) from iron and steel industries aggregated by a binder (3), characterized in that an outer protective covering (4) is arranged on the aggregate block (1).
  2. The high-density counterweight according to claim 1, characterized in that the outer covering (4) completely envelopes the aggregate block (1).
  3. The high-density counterweight according to claim 1, characterized in that the outer covering (4) is made of plastic.
EP11180053.8A 2010-09-07 2011-09-05 High-density counterweight Withdrawn EP2426078A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201001151A ES2377892B1 (en) 2010-09-07 2010-09-07 HIGH DENSITY COUNTERWEIGHT.

Publications (2)

Publication Number Publication Date
EP2426078A2 true EP2426078A2 (en) 2012-03-07
EP2426078A3 EP2426078A3 (en) 2013-07-10

Family

ID=45065627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180053.8A Withdrawn EP2426078A3 (en) 2010-09-07 2011-09-05 High-density counterweight

Country Status (2)

Country Link
EP (1) EP2426078A3 (en)
ES (1) ES2377892B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106219A1 (en) * 2013-06-14 2014-12-18 Karl Alteepping Counterweight of a construction machine
EP2955054A1 (en) * 2014-06-12 2015-12-16 Sic Lazaro, S.L. A counterweight for tensioning the wire of a catenary in a railway line
EP2962979A1 (en) * 2014-07-03 2016-01-06 Josef Bergmeister e.K. Ballast for a crane
ES2578406A1 (en) * 2015-01-23 2016-07-26 Sic Lázaro, S.L. Railway counterweight with adjustable mass (Machine-translation by Google Translate, not legally binding)
CN111005566A (en) * 2020-03-11 2020-04-14 鲁东大学 Adjustable counterweight device for building construction and working method thereof
US11414105B2 (en) * 2017-08-14 2022-08-16 Siemens Mobility GmbH Ballast arrangement for a rail vehicle, and method for producing a ballast device
EP4336122A1 (en) * 2022-09-06 2024-03-13 Geo Weights Limited Geothermal drilling weight

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299133A1 (en) * 1975-01-28 1976-08-27 Putatti Roland Heavy objects and slabs mfr. - using scrap metal and a binder
JPH08209748A (en) * 1995-01-31 1996-08-13 Hitachi Constr Mach Co Ltd Counter-weight of construction machinery
JPH11200420A (en) * 1998-01-19 1999-07-27 Sumitomo Constr Mach Co Ltd Counterweight of construction machine
IT1311728B1 (en) * 1999-12-10 2002-03-19 Electrolux Zanussi Elettrodome PROCEDURE FOR THE MANUFACTURE OF MANUFACTURES OF SIGNIFICANT PESOSPECIFIC BASIS ON THE BASIS OF FERROUS INERTS AND MANUFACTURES SO MADE
JP3514744B2 (en) * 2001-04-05 2004-03-31 株式会社小松製作所 Counter weight
JP2002309624A (en) * 2001-04-13 2002-10-23 Komatsu Ltd Counter-weight
JP4428885B2 (en) * 2001-06-01 2010-03-10 日立建機株式会社 Counterweight, counterweight manufacturing method and dismantling method
JP4880625B2 (en) * 2008-01-30 2012-02-22 太平洋セメント株式会社 Counterweight including heavy aggregate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106219A1 (en) * 2013-06-14 2014-12-18 Karl Alteepping Counterweight of a construction machine
EP2955054A1 (en) * 2014-06-12 2015-12-16 Sic Lazaro, S.L. A counterweight for tensioning the wire of a catenary in a railway line
US9610860B2 (en) 2014-06-12 2017-04-04 Sic Lazaro, S.L. Counterweight for tensioning the wire of a catenary in a railway line
EP2962979A1 (en) * 2014-07-03 2016-01-06 Josef Bergmeister e.K. Ballast for a crane
ES2578406A1 (en) * 2015-01-23 2016-07-26 Sic Lázaro, S.L. Railway counterweight with adjustable mass (Machine-translation by Google Translate, not legally binding)
US11414105B2 (en) * 2017-08-14 2022-08-16 Siemens Mobility GmbH Ballast arrangement for a rail vehicle, and method for producing a ballast device
CN111005566A (en) * 2020-03-11 2020-04-14 鲁东大学 Adjustable counterweight device for building construction and working method thereof
EP4336122A1 (en) * 2022-09-06 2024-03-13 Geo Weights Limited Geothermal drilling weight
WO2024052327A1 (en) * 2022-09-06 2024-03-14 Geo Weights Limited Geothermal drilling weight

Also Published As

Publication number Publication date
ES2377892B1 (en) 2013-01-08
ES2377892A1 (en) 2012-04-03
EP2426078A3 (en) 2013-07-10

Similar Documents

Publication Publication Date Title
EP2426078A2 (en) High-density counterweight
WO2000066508A3 (en) Ready to use spackle/repair product containing dryness indicator
US7093875B2 (en) Combination truck bed liner
CN101662902A (en) Shell and manufacturing method thereof
CN104204619A (en) Gearbox with housing, and housing
US6203643B1 (en) Method of placing markings on a polymer plastic grave marker
US20030219561A1 (en) Composite utility poles
AU2013311490B2 (en) Pressurised fluid container and method for the production thereof
US9573303B2 (en) Manufacturing method for metal and plastic composite bodies
CN204875419U (en) Permanent seal cooling polymer limited slip ramp
US20030219560A1 (en) Decorative lamp post cover
CN105670428A (en) Making method of artistical manhole cover
ATE262051T1 (en) METHOD FOR PRODUCING SOLID AMORPHIC LAYERS ON SOLID METALLIC MOLDED BODIES
CN103097625B (en) There is the formwork element of seamed edge protection portion and be used for manufacturing the method for this formwork element
JP3499822B2 (en) Anti-slip iron lid
GB1573631A (en) Vehicle wall having an outer skin coating and method of applying same
CN211942827U (en) Automobile wheel hub dress trim cover with metal sign
CN2820962Y (en) Novel high strength wear-resistance composite material man-hole cover
JP3263747B2 (en) Manhole cover coating method
JP2862690B2 (en) Method for producing reinforced plastic composite coated steel
JPH0324906A (en) Molding method of concrete molded plate and concrete molded plate
EP2045396B1 (en) Process for producing a traffic- and parking-preventing element made of rubber
KR200364374Y1 (en) Flowerpot for street decoration
CN201531000U (en) Cement separation mound
JPH02279826A (en) Cover

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: B66C 23/72 20060101AFI20130606BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140111