WO2018208170A1 - Chisel arrangement for excavator - Google Patents
Chisel arrangement for excavator Download PDFInfo
- Publication number
- WO2018208170A1 WO2018208170A1 PCT/NO2018/050121 NO2018050121W WO2018208170A1 WO 2018208170 A1 WO2018208170 A1 WO 2018208170A1 NO 2018050121 W NO2018050121 W NO 2018050121W WO 2018208170 A1 WO2018208170 A1 WO 2018208170A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chisel
- housing
- chisel arrangement
- blade
- arrangement
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 description 9
- 230000001419 dependent effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/962—Mounting of implements directly on tools already attached to the machine
-
- 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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
-
- 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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
-
- 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
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
-
- 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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/961—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
Definitions
- a hydraulic chisel is used for splitting rock, concrete and other solid materials, the chisel being connected to the arm of an excavator, for example, and being driven by the hydraulic system integrated in the machine to which the chisel is connected.
- the chisel is elongated and relatively slim and is not very suitable for moving the split material.
- a clearing blade 2 is attached to the chisel arrangement 1 at the first end portion 111 of the housing, shown here as attached to the coupling portion 14 by means of blade attachments 23.
- the clearing blade 2 may be integrated in the coupling portion 14.
- the chisel arrangement 1 When chiselling a surface 4, the chisel arrangement 1 is set with the chisel 12 pointing towards the surface 4, as is shown in figure 1.
- the material 41 is broken loose from the surface, and the loosened material 41 is removed from the surface 4 of the work area by the chisel arrangement 1 being tilted around the pivot axis 15 into the position shown in figure 2, as the chisel arrangement 1 is lowered towards the loosened material 41 which is then pushed away by means of the clearing blade 2 as the chisel arrangement 1 and the clearing blade are moved parallel to the surface 4.
- the chisel arrangement 1 When the surface 4 at the work area is exposed, the chisel arrangement 1 is re-adjusted to the position shown in figure 1, and the chiselling of the surface 4 may continue.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
A chisel arrangement (1) arranged to be connected to a pivotal tool mount (31) on a work machine (3) is described, wherein a pivot axis (32) of the tool mount (31) forms an operative pivot axis (15) of the chisel arrangement (1), and wherein the chisel arrangement (1) includes a housing (11) provided with a coupling portion (14) which is arranged to be attachable to the tool mount (31), a reciprocatable chisel (12) projecting from an end portion (112) of the housing (11), and wherein a clearing blade (2) is rigidly attached to the housing (11) remotely from said end portion (112) and projects from the periphery of the housing (11) and is provided with a forward edge (211) which is substantially parallel to the operative pivot axis (15) of the chisel arrangement (1).
Description
CHISEL ARRANGEMENT FOR EXCAVATOR
The invention relates to a chisel arrangement arranged to be connected to a pivotal tool mount on a work machine, wherein a pivot axis of the tool mount forms an operative pivot axis of the chisel arrangement, and wherein the chisel arrangement includes a housing provided with a coupling portion, which is arranged to be attachable to the tool mount, and a reciprocatable chisel projecting from an end portion of the housing.
A hydraulic chisel is used for splitting rock, concrete and other solid materials, the chisel being connected to the arm of an excavator, for example, and being driven by the hydraulic system integrated in the machine to which the chisel is connected. The chisel is elongated and relatively slim and is not very suitable for moving the split material.
US 4602821 A discloses a hydraulic chisel provided with a clearing scraper or a clearing shovel which is pivotal or displaceable between an inactive, locked position along the housing and an active, locked position in which a forward edge projects beyond the end portion of the chisel, the clearing scraper or clearing shovel being suitable for removing the crushed material.
KR 20160067339 A discloses a clearing scraper which is hydraulically displaceable along the chisel housing in guides arranged on the chisel housing between a retracted, inactive position and an extended, active position in which a forward edge projects beyond the end portion of the chisel for the removal of the divided material.
From JP H01252375 A, a clearing scraper arranged on a chisel housing is known, hydraulically pivotal between an inactive position along the chisel housing and an active position in which the clearing scraper extends along the chisel and beyond the end of the chisel.
AU 559417 B2 discloses a clearing scraper which is pivotal between an inactive, locked position along a chisel housing and a working position in which it extends along the chisel. The chisel may be released from its locked, inactive position by remote control
P28548PC01 description and claims
of a locking device.
A drawback of clearing scrapers that are displaceable or rotatable relative to the chisel housing is that the assembly of the chisel housing and clearing scraper must include complicated and vulnerable functions to enable change-over of the clearing scraper.
The invention has for its object to remedy or reduce at least one of the drawbacks of the prior art or at least provide a useful alternative to the prior art.
The object is achieved through the features that are specified in the description below and in the claims that follow.
The invention provides a chisel arrangement arranged to be fitted at a tool mount on a work machine, especially an excavator, provided with a tool manipulator in which a clearing blade is rigidly attached to a housing, the clearing blade projecting from the periphery of the housing and being provided with a forward edge which is substantially parallel to the pivot axis of the tool mount, which is also the operative pivot axis of the chisel arrangement. When the chisel arrangement is in a normal position, that is to say with the chisel pointing towards the surface that is to be broken up, the clearing blade has good clearance to the surface and does not prevent the chisel from working the surface. When loosened material is to be removed from the work area of the chisel, the chisel arrangement is tilted around the pivot axis of the tool mount, so that the clearing blade has its forward edge facing the surface, and the loosened material is pushed away so that the surface is exposed and ready for further chiselling .
Preferably, the clearing blade is arranged in the immediate vicinity of a coupling portion arranged to connect the chisel arrangement and the tool mount. The clearing blade may be integrated in the coupling portion.
Preferably, the clearing blade has a working width which is larger than the extent, in terms of width, of the tool mount.
Preferably, the clearing blade is formed of a plate element provided with reinforcing ribs extending from the forward edge of the clearing blade.
It is an advantage if the clearing blade is provided with side walls extending from the forward edge and forming at least some of the reinforcing ribs of the clearing blade.
The clearing blade may be provided with a wear part in the form of a replaceable front piece.
P28548PC01 description and claims
The invention is defined by the independent claim. The dependent claims define advantageous embodiments of the invention.
More specifically, the invention relates to a chisel arrangement arranged to be connected to a pivotal tool mount on the rotatable tool mount of a work machine, wherein a pivot axis of the tool mount forms an operative pivot axis of the chisel arrangement, and wherein the chisel arrangement includes
a housing provided with a coupling portion which is arranged to be attachable to the tool mount,
a reciprocatable chisel projecting from an end portion of the housing, characterized by
a clearing blade being rigidly attached to the housing at a distance from said end portion and projecting from the periphery of the housing and being provided with a forward edge which is substantially parallel to the operative pivot axis of the chisel arrangement.
The clearing blade may be attached in the immediate vicinity of the coupling portion. The clearing blade may be attached to the coupling portion.
The forward edge of the clearing blade may have an extent that exceeds the width of the tool mount.
The forward edge of the clearing blade may be parallel to the pivot axis of the tool mount.
The clearing blade may include a blade plate which is provided with several reinforcing ribs.
The clearing blade may include a blade plate, on which reinforcing ribs form side walls on the blade plate.
The forward edge may be formed of at least one replaceable front piece.
The forward edge of the clearing blade may have a distance from the housing of 20 cm minimum.
In what follows, examples of preferred embodiments are described, which are visualized in the accompanying drawings, in which :
P28548PC01 description and claims
Figure 1 shows a side view of a chisel arrangement attached to an excavator arm and provided with a clearing blade, the chisel arrangement being shown in a first position for chiselling;
Figure 2 shows a view corresponding to figure 1, the chisel arrangement being shown in a second position for moving loosened material;
Figure 3 shows a perspective drawing, on a larger scale, of the clearing blade;
and
Figure 4 shows a perspective drawing, on a larger scale, of a section of the clearing blade provided with a replaceable front piece.
Reference is first made to figure 1. A chisel arrangement 1 of a kind known per se includes a housing 11 which, in a first end portion 111, includes a coupling portion 14 arranged for releasable connection to a tool mount 31 on a work machine 3, shown here as an arm on an excavator. A reciprocatable chisel 12 projects from a second end portion 112 of the housing 11. In a manner known per se, the housing 11 accommodates a driving device, not shown, for the chisel 12, typically a hydraulic driving device driven by the hydraulic system (not shown) of the work machine 3. The longitudinal axis 13 of the chisel is perpendicular to the operative pivot axis 15 of the chisel arrangement 1. Said operative pivot axis 15 is formed of a rotational axis 32 of the tool mount 31 relative to the work machine 3.
A clearing blade 2 is attached to the chisel arrangement 1 at the first end portion 111 of the housing, shown here as attached to the coupling portion 14 by means of blade attachments 23. In an embodiment not shown, the clearing blade 2 may be integrated in the coupling portion 14.
The clearing blade 2 projects rigidly from the periphery of the housing 11, shown perpendicular to the longitudinal axis 13 of the chisel 12 here. The angle of the clearing blade 2 relative to said longitudinal axis 13 may be adjustable.
The clearing blade 2 is formed of a blade plate 21 which is provided with a forward edge 211. The blade plate 21 is preferably braced by means of reinforcing ribs 22, shown here as two opposite side walls extending from the forward edge 211 backwards for the entire extent of the blade plate 21. In the embodiment shown, the blade plate 21 extends on both sides along the entire coupling portion 14.
The clearing blade 2 may have a width that exceeds the width of the housing 11 and
P28548PC01 description and claims
the coupling portion 14.
The clearing blade 2 is shown in more detail in figure 3.
In an alternative embodiment, the blade plate 21 is provided with a replaceable front piece 24 which forms the forward edge 211 of the clearing blade 2, see figure 4. The front piece 24 may be a multipart one and may be attached to the blade plate 21 by means of welds or screws or other suitable fastening means.
When chiselling a surface 4, the chisel arrangement 1 is set with the chisel 12 pointing towards the surface 4, as is shown in figure 1. The material 41 is broken loose from the surface, and the loosened material 41 is removed from the surface 4 of the work area by the chisel arrangement 1 being tilted around the pivot axis 15 into the position shown in figure 2, as the chisel arrangement 1 is lowered towards the loosened material 41 which is then pushed away by means of the clearing blade 2 as the chisel arrangement 1 and the clearing blade are moved parallel to the surface 4. When the surface 4 at the work area is exposed, the chisel arrangement 1 is re-adjusted to the position shown in figure 1, and the chiselling of the surface 4 may continue.
It should be noted that all the above-mentioned embodiments illustrate the invention, but do not limit it, and persons skilled in the art may construct many alternative embodiments without departing from the scope of the attached claims. In the claims, reference numbers in brackets are not to be regarded as restrictive.
The use of the verb "to comprise" and its different forms does not exclude the presence of elements or steps that are not mentioned in the claims. The indefinite article "a" or "an" before an element does not exclude the presence of several such elements.
The fact that some features are indicated in mutually different dependent claims does not indicate that a combination of these features cannot be used with advantage.
P28548PC01 description and claims
Claims
1. A chisel arrangement (1) arranged to be connected to a pivotal tool mount (31) on a work machine (3), wherein a pivot axis (32) of the tool mount (31) forms an operative pivot axis (15) of the chisel arrangement (1), and wherein the chisel arrangement (1) includes
a housing (11) provided with a coupling portion (14) which is arranged to be attachable to the tool mount (31), and
a reciprocatable chisel (12) projecting from an end portion (112) of the housing (11),
c h a r a c t e r i z e d i n that
a clearing blade (2) is rigidly attached to the housing (11) at a distance from said end portion (112) and projects from the periphery of the housing (11) and is provided with a forward edge (211) which is substantially parallel to the operative pivot axis (15) of the chisel arrangement (1).
2. The chisel arrangement (1) according to claim 1, wherein the clearing blade (2) is attached in the immediate vicinity of the coupling portion (14).
3. The chisel arrangement (1) according to claim 1, wherein the clearing blade (2) is attached to the coupling portion (14).
4. The chisel arrangement (1) according to claim 1, wherein the forward edge (211) of the clearing blade (2) has a length which is larger than a width of the tool mount (31).
5. The chisel arrangement (1) according to claim 1, wherein the forward edge (211) of the clearing blade (2) is parallel to the pivot axis (32) of the tool mount (31).
6. The chisel arrangement (1) according to claim 1, wherein the clearing blade (2) includes a blade plate (21) which is provided with several reinforcing ribs (22).
7. The chisel arrangement (1) according to claim 1, wherein the clearing blade (2) includes a blade plate (21), in which reinforcing ribs (22) form side walls on the blade plate (21).
8. The chisel arrangement (1) according to claim 1, wherein the forward edge (211) is formed of at least one replaceable front piece (24) .
P28548PC01 description and claims
9. The chisel arrangement (1) according to claim 1, wherein the forward edge (211) of the clearing blade (2) has a distance from the housing (11) of 20 cm minimum.
P28548PC01 description and claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18799255.7A EP3622122B1 (en) | 2017-05-09 | 2018-05-08 | Chisel arrangement for excavator |
| CN201880030991.4A CN110691879B (en) | 2017-05-09 | 2018-05-08 | Chisel device of excavator |
| US16/603,760 US11155980B2 (en) | 2017-05-09 | 2018-05-08 | Chisel arrangement for excavator |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20170761 | 2017-05-09 | ||
| NO20170761 | 2017-05-09 | ||
| NO20180640 | 2018-05-04 | ||
| NO20180640A NO344520B1 (en) | 2017-05-09 | 2018-05-04 | CHISEL ARRANGEMENT FITTED TO CONNECT TO A TURNABLE TOOL MOUNT ON A WORKING MACHINE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018208170A1 true WO2018208170A1 (en) | 2018-11-15 |
Family
ID=64104800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/NO2018/050121 WO2018208170A1 (en) | 2017-05-09 | 2018-05-08 | Chisel arrangement for excavator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110691879B (en) |
| WO (1) | WO2018208170A1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449120A (en) | 1972-11-13 | 1976-09-15 | Ingersoll Rand Co | Excavator assembly of a bucket and a hydraulically powered breaker |
| GB1482357A (en) * | 1975-09-25 | 1977-08-10 | Lockwood Bennett Ltd | Equipment for ripping tunnels or roadways and loading the debris |
| US4602821A (en) | 1983-09-30 | 1986-07-29 | Karl Schaeff Gmbh & Co. Maschinenfabrik | Combined shovel and rock breaking chisel for an excavator |
| AU559417B2 (en) | 1982-03-03 | 1987-03-12 | O'neill, J. | Percussive breaker with scraper blade |
| JPH01252375A (en) | 1988-03-31 | 1989-10-09 | Nakaishi Kenki Kk | Soil removing plate provided for hydraulic breaker |
| US5404660A (en) | 1991-05-18 | 1995-04-11 | Webster Equipment Limited | Mechanism for supporting an earthworking etc. tool |
| FR2866362A1 (en) * | 2004-02-18 | 2005-08-19 | Montabert Roger | Accessory e.g. scoop, for use in stone crusher, has flange with projecting part that acts against edge of base and against maintenance bar, so that rotation and translation of accessory around axis of body are prevented |
| CN102261085A (en) * | 2010-05-31 | 2011-11-30 | 三一重型装备有限公司 | Auxiliary material receiving device of breaking hammer |
| KR20160067339A (en) | 2014-12-04 | 2016-06-14 | 임성진 | Breaker of excavator with a Bucket |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2873542A (en) * | 1953-08-05 | 1959-02-17 | Tractomotive Corp | Tractor mounted shoulder maintainer |
| US2983496A (en) * | 1958-10-17 | 1961-05-09 | Louis A Grant | Earth moving machine |
| CN204475396U (en) * | 2015-03-05 | 2015-07-15 | 宜昌一达机械制造有限公司 | For the multifunctional solution pressure arm of backhoe loader |
-
2018
- 2018-05-08 CN CN201880030991.4A patent/CN110691879B/en active Active
- 2018-05-08 WO PCT/NO2018/050121 patent/WO2018208170A1/en active Search and Examination
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449120A (en) | 1972-11-13 | 1976-09-15 | Ingersoll Rand Co | Excavator assembly of a bucket and a hydraulically powered breaker |
| GB1482357A (en) * | 1975-09-25 | 1977-08-10 | Lockwood Bennett Ltd | Equipment for ripping tunnels or roadways and loading the debris |
| AU559417B2 (en) | 1982-03-03 | 1987-03-12 | O'neill, J. | Percussive breaker with scraper blade |
| US4602821A (en) | 1983-09-30 | 1986-07-29 | Karl Schaeff Gmbh & Co. Maschinenfabrik | Combined shovel and rock breaking chisel for an excavator |
| JPH01252375A (en) | 1988-03-31 | 1989-10-09 | Nakaishi Kenki Kk | Soil removing plate provided for hydraulic breaker |
| US5404660A (en) | 1991-05-18 | 1995-04-11 | Webster Equipment Limited | Mechanism for supporting an earthworking etc. tool |
| FR2866362A1 (en) * | 2004-02-18 | 2005-08-19 | Montabert Roger | Accessory e.g. scoop, for use in stone crusher, has flange with projecting part that acts against edge of base and against maintenance bar, so that rotation and translation of accessory around axis of body are prevented |
| CN102261085A (en) * | 2010-05-31 | 2011-11-30 | 三一重型装备有限公司 | Auxiliary material receiving device of breaking hammer |
| KR20160067339A (en) | 2014-12-04 | 2016-06-14 | 임성진 | Breaker of excavator with a Bucket |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3622122A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110691879B (en) | 2022-03-25 |
| CN110691879A (en) | 2020-01-14 |
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