EP2426078A2 - High-density counterweight - Google Patents
High-density counterweight Download PDFInfo
- 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- Withdrawn
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000004567 concrete Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 206010001488 Aggression Diseases 0.000 description 4
- 230000016571 aggressive behavior Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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
Description
- 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.
- 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.
- 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.
-
-
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. - 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)
- 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).
- The high-density counterweight according to claim 1, characterized in that the outer covering (4) completely envelopes the aggregate block (1).
- The high-density counterweight according to claim 1, characterized in that the outer covering (4) is made of plastic.
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)
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)
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 |
-
2010
- 2010-09-07 ES ES201001151A patent/ES2377892B1/en not_active Expired - Fee Related
-
2011
- 2011-09-05 EP EP11180053.8A patent/EP2426078A3/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None |
Cited By (9)
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 |
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