EP0569963A1 - Bucket with hydraulic hammer - Google Patents
Bucket with hydraulic hammer Download PDFInfo
- Publication number
- EP0569963A1 EP0569963A1 EP93107733A EP93107733A EP0569963A1 EP 0569963 A1 EP0569963 A1 EP 0569963A1 EP 93107733 A EP93107733 A EP 93107733A EP 93107733 A EP93107733 A EP 93107733A EP 0569963 A1 EP0569963 A1 EP 0569963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bucket
- hammer
- hydraulic hammer
- obstacle
- chisel
- 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.)
- Granted
Links
- 239000011435 rock Substances 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- E02F3/28—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
- E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
- E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
-
- 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
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
- E02F9/221—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for generating actuator vibration
Definitions
- the present invention relates to earth working, loading and transporting machinery and devices. It is well known that the major part of earth working operations are accomplished with use of tractor propelled digging devices, such as all kinds of excavators equipped with buckets.
- the invention creates means which allow breaking of hard soil while the material flows and is heaped into the bucket simultaneously.
- the same bucket also in a further step can load the material or move it to other locations on the site.
- the conventional bucket of each digging and moving equipment is provided with an integral hydraulic hammer device including a conventional chisel, positioned at the bottom of the bucket and securely affixed to it, means being provided to activate the hydraulic hammer whenever the cutting edge of the bucket encounters an obstacle which exerts pressure on the bucket larger than the pressure originating from the action of the engine and possibly other power units actuating the respective equipment.
- an integral hydraulic hammer device including a conventional chisel, positioned at the bottom of the bucket and securely affixed to it, means being provided to activate the hydraulic hammer whenever the cutting edge of the bucket encounters an obstacle which exerts pressure on the bucket larger than the pressure originating from the action of the engine and possibly other power units actuating the respective equipment.
- the said actuating means would comprise a sensor of generally known type which - whenever the bucket encounters an obstacle of the kind referred to issues a command to the hydraulic hammer to start operation of fragmentation of the obstructing rock formation by direct penetration of the chisel and thus applying original power of the hammer to full extent.
- the said sensor may be of electric, electronic or electro/hydraulic type.
- the hammer In the event that continuous hammer work is required in standard hydraulic hammer operation, the hammer is released from its position so that it extends from the bucket. In that case it is preferred to operate in two separate steps i.e. the breaking and the bucket filling operation as compared to the one step operation which simultaneously breaks and fills the bucket. In that case there would be no operation limitation to the bucket and/or to the hammer: the bucket can operate as a breaking and filling device simultaneously, and at loading as a further step, or this process can be divided for use in certain applications as will be explained further on.
- the bucket After using the hammer in the position of (removed from bucket bottom) standard hydraulic hammer while sliding back the hammer mechanism to former inner position, the bucket can be used to load or move the material which had been broken in the extended position.
- Fig. 1 is a fragmentary, partly sectional view of an impact bucket in the cavity of which an hydraulic hammer is placed.
- Fig. 2 is a diagrammatic view of the working elements of an arrangement including the bucket of an earth working and moving assembly, provided with a hammer.
- Figs. 3, 4 and 5 show details.
- Fig. 1 there is shown the conventional bucket B linked to a pair of arms A which extend in a known manner from any excavators or backhoe tractor or wheel loader or other truck and wheel excavation machine excavators.
- the bucket is shown in a position of having penetrated the soil S and having met an agglomeration of rocks R.
- On the bottom wall of bucket B is positioned the hydraulic hammer H, from the leading end of which extends a chisel C.
- a signal establishing this fact is transmitted (as will become clear later) to a command center, whereupon a command is issued which via cable CB activates the hammer H to break up and fragmentize the rock formation R.
- the operation of the hammer will automatically stop when no longer needed.
- Figs. 2, 3, 4 and 5 illustrate the manner in which hammer H is held in and released from bucket B, when the separate operation of the hammer is required for hard rocks or for demolition jobs.
- hammer H is mounted with a pair of guide rails 3 and 4, and secured by means of two hydraulic pistons 5 which when activated causes attraction of a pin 6.
- the hammer will then slide out of the bucket by its own weight. At the end of its stroke, pin 6 will penetrate into hole 7 enabling working with the now separate hammer in the extended position. The hammer is placed back to its inner position in a reverse manner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Earth Drilling (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
- The present invention relates to earth working, loading and transporting machinery and devices. It is well known that the major part of earth working operations are accomplished with use of tractor propelled digging devices, such as all kinds of excavators equipped with buckets.
- It happens frequently that when the forward cutting edge of the bucket digs into the soil, it encounters a rock formation or a single large rock in relation to which the power delivered by the tractor's engine and other power units might be insufficient to overcome such an obstacle. Traditionally, the known remedy to such an occurrence is to tackle the obstructing rock by fragmenting it with the aid of a standard hydraulic or pneumatic hammer. This practice is rather complicated and time consuming and involves also the removal of the digging equipment and the tractor to which it is connected. In this practice the rocks are breaking but cannot be heaped into a bucket and loaded simultaneously in that operation.
- It has already been suggested to equip the cutting edge of the bucket (which in that case is swingably linked to the bucket's main body) with a vibrator. This proposal does not seem to fully solve the problem referred to, insofar as mere vibration does not fragmentize rock to such degree that the bucket can continue work unimpededly.
- It is the main object of the invention to create means which allow uninterrupted continuation of the earth working, loading and moving operation even if the bucket strikes an obstacle of the kind referred to above. The invention creates means which allow breaking of hard soil while the material flows and is heaped into the bucket simultaneously. The same bucket also in a further step can load the material or move it to other locations on the site.
- According to the invention the conventional bucket of each digging and moving equipment is provided with an integral hydraulic hammer device including a conventional chisel, positioned at the bottom of the bucket and securely affixed to it, means being provided to activate the hydraulic hammer whenever the cutting edge of the bucket encounters an obstacle which exerts pressure on the bucket larger than the pressure originating from the action of the engine and possibly other power units actuating the respective equipment.
- The said actuating means would comprise a sensor of generally known type which - whenever the bucket encounters an obstacle of the kind referred to issues a command to the hydraulic hammer to start operation of fragmentation of the obstructing rock formation by direct penetration of the chisel and thus applying original power of the hammer to full extent.
- The said sensor may be of electric, electronic or electro/hydraulic type.
- In the event that continuous hammer work is required in standard hydraulic hammer operation, the hammer is released from its position so that it extends from the bucket. In that case it is preferred to operate in two separate steps i.e. the breaking and the bucket filling operation as compared to the one step operation which simultaneously breaks and fills the bucket. In that case there would be no operation limitation to the bucket and/or to the hammer: the bucket can operate as a breaking and filling device simultaneously, and at loading as a further step, or this process can be divided for use in certain applications as will be explained further on.
- After using the hammer in the position of (removed from bucket bottom) standard hydraulic hammer while sliding back the hammer mechanism to former inner position, the bucket can be used to load or move the material which had been broken in the extended position.
- These and further features of the invention will become clear from the detailed description which refers to the annexed drawings, wherein:
- Fig. 1 is a fragmentary, partly sectional view of an impact bucket in the cavity of which an hydraulic hammer is placed.
- Fig. 2 is a diagrammatic view of the working elements of an arrangement including the bucket of an earth working and moving assembly, provided with a hammer.
- Figs. 3, 4 and 5 show details.
- Turning first to Fig. 1, there is shown the conventional bucket B linked to a pair of arms A which extend in a known manner from any excavators or backhoe tractor or wheel loader or other truck and wheel excavation machine excavators. The bucket is shown in a position of having penetrated the soil S and having met an agglomeration of rocks R. On the bottom wall of bucket B is positioned the hydraulic hammer H, from the leading end of which extends a chisel C. On meeting the obstructing rock formation a signal establishing this fact is transmitted (as will become clear later) to a command center, whereupon a command is issued which via cable CB activates the hammer H to break up and fragmentize the rock formation R. The operation of the hammer will automatically stop when no longer needed.
- Figs. 2, 3, 4 and 5 illustrate the manner in which hammer H is held in and released from bucket B, when the separate operation of the hammer is required for hard rocks or for demolition jobs. For any types of jobs that there is no need for the broken rock material to be moved into the bucket for loading or for carrying away - or required for any use hammer H is mounted with a pair of
guide rails 3 and 4, and secured by means of two hydraulic pistons 5 which when activated causes attraction of a pin 6. The hammer will then slide out of the bucket by its own weight. At the end of its stroke, pin 6 will penetrate into hole 7 enabling working with the now separate hammer in the extended position. The hammer is placed back to its inner position in a reverse manner. - Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.
Claims (4)
- Earth working machinery comprising a tractor or like propelling means to which a bucket member is swingingly linked, characterised thereby that the said bucket is provided with at least one integral hydraulic hammer device including a chisel and positioned at the bottom of the bucket and securely affixed to it, means being provided to activate the hydraulic hammer whenever the cutting edge of the bucket encounters an obstacle which exerts pressure on the bucket larger than the pressure originating from the action of the engine and possibly other power units actuating the respective equipment.
- The arrangement of claim 1 wherein the said actuating means comprise a sensor of generally known type which - whenever the bucket encounters an obstacle of the kind referred to issues a command to the hydraulic hammer to start operation of fragmentation of the obstructing rock formation by direct penetration of the hammer chisel and thus applying original power of the hammer to full extent.
- A bucket for earth working machinery characterised thereby that said bucket is equipped with means which enable partial release of said hammer from said bucket.
- The arrangement of claim 1 wherein the hammer is fully detachable from the bucket for separate use of commonly known standard operation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL101846 | 1992-05-12 | ||
IL101846A IL101846A0 (en) | 1992-05-12 | 1992-05-12 | Bucket for earth working machinery |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0569963A1 true EP0569963A1 (en) | 1993-11-18 |
EP0569963B1 EP0569963B1 (en) | 1998-02-18 |
Family
ID=11063618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93107733A Expired - Lifetime EP0569963B1 (en) | 1992-05-12 | 1993-05-12 | Bucket with hydraulic hammer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0569963B1 (en) |
AT (1) | ATE163313T1 (en) |
DE (1) | DE69317011T2 (en) |
IL (1) | IL101846A0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10306659B4 (en) * | 2002-06-07 | 2005-12-01 | Mitsuru Maruyama | Mug peripheral mechanism for a crusher |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010756A1 (en) * | 1989-03-06 | 1990-09-20 | Caterpillar Inc. | Impact bucket apparatus |
-
1992
- 1992-05-12 IL IL101846A patent/IL101846A0/en unknown
-
1993
- 1993-05-12 AT AT93107733T patent/ATE163313T1/en not_active IP Right Cessation
- 1993-05-12 EP EP93107733A patent/EP0569963B1/en not_active Expired - Lifetime
- 1993-05-12 DE DE69317011T patent/DE69317011T2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010756A1 (en) * | 1989-03-06 | 1990-09-20 | Caterpillar Inc. | Impact bucket apparatus |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 8, no. 174 (M-316)(1611) 10 August 1984 & JP-A-59 68 446 ( KAYABA KOGYO K.K. ) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10306659B4 (en) * | 2002-06-07 | 2005-12-01 | Mitsuru Maruyama | Mug peripheral mechanism for a crusher |
Also Published As
Publication number | Publication date |
---|---|
DE69317011D1 (en) | 1998-03-26 |
EP0569963B1 (en) | 1998-02-18 |
DE69317011T2 (en) | 1998-09-17 |
ATE163313T1 (en) | 1998-03-15 |
IL101846A0 (en) | 1992-12-30 |
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