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WO1996018003A1 - Turning arrangement for operation means and operation means - Google Patents

Turning arrangement for operation means and operation means Download PDF

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Publication number
WO1996018003A1
WO1996018003A1 PCT/SE1994/001190 SE9401190W WO9618003A1 WO 1996018003 A1 WO1996018003 A1 WO 1996018003A1 SE 9401190 W SE9401190 W SE 9401190W WO 9618003 A1 WO9618003 A1 WO 9618003A1
Authority
WO
WIPO (PCT)
Prior art keywords
operational means
portions
pivoting device
operational
pivoting
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.)
Ceased
Application number
PCT/SE1994/001190
Other languages
French (fr)
Inventor
Stig Pettersson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/SE1994/001190 priority Critical patent/WO1996018003A1/en
Priority to AU13940/95A priority patent/AU1394095A/en
Publication of WO1996018003A1 publication Critical patent/WO1996018003A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/303—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with the dipper-arm or boom rotatable about its longitudinal axis
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm

Definitions

  • the present invention relates to a pivoting device for operational means such as dredger arm portions in dredgers, the pivoting device being adapted to pivotably connect two operational means portions by means of a relative displacement of two pivoting device portions each connected with one of said portions.
  • the invention also relates to an operational means.
  • pivoting devices essentially of the above mentioned kind are already known in the art.
  • the known technique is associated with essential disadvantages such as a large spacial requirement, control and operating problems as well as a sensivity for a play between the relatively displaceable parts.
  • the present invention relates to a pivoting device and an operational means without the disadvantages associated with what already is known in the art.
  • the invention relates to a pivoting device according to the ingressing part of the attached claim 1.
  • the pivoting device is especially characterized by what is stated in the characterizing part of said claim.
  • the invention also relates to an operational means according to the ingressing part of the attached claim 11.
  • the operational means is especially characterized by what is stated in the characterizing part of claim 11.
  • Figure 1 schematically shows a first embodiment of a pivoting device according to the invention across its pivoting axe and in an axially partlialcross section
  • FIG. 2 schematically shows a section A-A in figure 1
  • Figure 3 schematically shows an axial section of a displaceably arranged pivoting device portion
  • Figure 4 schematically shows a second embodiment of a pivoting device according to the invention across its pivoting axe and in an axially partial cross section
  • Figure 5 schematically shows a portion of an operational means and the pivoting device according to the invention in a side view across the the pivoting axes.
  • references 1 and 2 designate a first and a second portion of an operational means, respectively, being pivotingly and relatively connected.
  • a first pivoting device portion 3 is arranged for a relative pivoting, being guided and not pivotally displaceable along a second pivoting device portion 4 in said first operational means portion by means of a within the operational means portion 1 running guide 5 and at least one in the operational means portion arranged power source 6.
  • Said second pivoting device portion is pivotably and not displaceably mounted in said first operational means portion 1 and not pivotably fixed to said second operational means portion 2.
  • the first pivoting device portion 3 comprises a casing 7, displaceably guided in said first operational means portion and in which an inside guiding means 8 comprising a first gudiding element 9 is inserted and arranged in said second pivoting device portion 4 for a cooperation with a outside guiding means 10, circumsized by it.
  • Said casing 7 comprises according to prefered embodiments a power source 6 in forn of two preferably hydraulically operated cylinders 11, one on each side of the second pivoting device portion for displacing the casing, adapted to operate towards a dolly arranged in the first operational means portion.
  • the guiding elements 8, 10 preferably consist of beams 10 and grooves 8, respectively, engaged in a thread configuration with preferably twelve leads and a pitch of about 55-65*, preferably about 61 * .
  • the guiding elements 5, figures 1 and 2 consist preferably of inside guiding rulers 5, screwed into the operational means portion 1 or casted together with the portion 1 as for the rest.
  • said first guiding element 9 is devided across its axial direction, one part 9' being attachebly and pivotably arranged in the casing, where possible, to pivote relatively with the second part 9" to compensate any play in cooperation with said second guiding element.
  • the operational means portions cooperating with the pivoting device are preferably axially mounted contacting each other by means of end elements 13, 14 of the portions 1, 2, respectively.
  • Said second pivoting device portion is preferably mounted in and attached to an end element 13 of the first operational means portion 1 and attached in an end element of the second operational means portion 2. Moreover, the pivoting device 4 is after mounting inserted in the dolly 12.
  • the second pivoting device portion has a threaded end portion 15 projecting towards the end element 14 of the second operational means portion and projecting at the side 16 facing from the first pivoting device portion and adapted to cooperate with a nut element 17 for compensating any axial play by means of tightening the nut element, the second pivoting device portion being limitedly displaceable in the end element 14.
  • a pivoting device is arranged for a relative pivoting of the operational means portions in form of a socket 18 for an operating device, e.g. a bucket (not shown) and a casing portion 19 to carry the operating device 0 and pivoting device portions, the casing portion corresponding to said first operational means portion.
  • the first pivoting device portion is displaceably guided in the casing portion generally according to figure 1 and the second pivoting device portion is fixed to the socket 18 and pivotably mounted in the casing portion end parts 20 or similar, the operating device for a sidewise swiveling being connected to the casing portion.
  • FIG 5 an embodiment of the operational means is illustrated which in many cases is preferred with a pivoting device according to the invention.
  • the existing operating arm portions 21, 22, 23, 24 are four, the two innermost, nearest to the a supporting unit 25 existing portions 21, 22 being relatively pivotable as also the two utmost 23, 24 of the four portions, the cnetral pair 22, 23 of the portions bein relatively swiveable in a plane generally parallel to the pivoting axes 26, around which the operational means portions are relatively pivotable.
  • the operational means portions are generally cast.
  • the utmost 22 of the two inner portions 21, 22 is pivotable around about 90 degrees in one direction and about 180 degrees in the other direction from the position shown in figure 5 and the outer 24 of the the two outside portions 23, 24 is about + 190 degrees pivotable from the position shown in figure 5.
  • the invention provides essential advantages in form of protection, simplicity, compactness, low costs and the possibility for a play compensation in comparison with what is already known in the art.
  • the stroke of the casing and the portion 3 is about 500 mm and the thread length of the portion 4 is about 1200 mm.
  • the diameter of the portion 4 is about 80 mm and the pitch is about 400 mm (for each rum).
  • An alternative for arranging one part of the first guiding element pivotable and attachable in oval holes 26, figure 3, in the casing is to provide inserts, shims, between the parts for compensating the play and a simultaneous locking, fixation, the pivotable part then being freely pivotable without any attachment to the casing.
  • At least one cylinder 27 is supported, e.g. in the casing 19 by means of a pivotable arrangement for the operational tool 0, in this case two cylinders 27, for operating the operating tool, e.g. for operating a bucket 0 against a dolly (not shown).
  • FIG 3 an embodiment is illustrated with the two parts 9', 9" of the pivoting device portion 3 being fixed by means of screws 28 in holes 29 in the casing 7.
  • An embodiment is shown with four holes for each part equally spaced.
  • the holes 29 for the first part 9' are here oval in a bent configuration for attaching the part in various positions for a play compensation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

A pivoting device (3, 4, 7) for operational means (1, 2) such as dredger arm portions in dredgers, the pivoting device being adapted to pivotably connecting two operational means portions (1, 2) by means of a relative displacement of two pivoting device portions (3, 4) each connected with one of said portions, the pivoting device portions comprising guiding means (8, 10) to achieve a relative pivoting of said pivoting device portions. The pivoting device is especially characterized in that a first pivoting device portion (3) is guided and not pivotably displaceable along a second pivoting device portion (4) in a first operational means portion (1) by means of guides (5) running in the operational means portion, and at least one power source (6) provided in the operational means portion, said second pivoting device portion (4) pivotably and not displaceably mounted in said first operational means portion and not pivotably attached to a second operational means portion (2).

Description

TURNING ARRANGEMENT FOR OPERATION MEANS AND OPERATION MEANS
The present invention relates to a pivoting device for operational means such as dredger arm portions in dredgers, the pivoting device being adapted to pivotably connect two operational means portions by means of a relative displacement of two pivoting device portions each connected with one of said portions.
The invention also relates to an operational means.
The pivoting devices essentially of the above mentioned kind are already known in the art. The known technique, however, is associated with essential disadvantages such as a large spacial requirement, control and operating problems as well as a sensivity for a play between the relatively displaceable parts.
The present invention relates to a pivoting device and an operational means without the disadvantages associated with what already is known in the art.
Thus, the invention relates to a pivoting device according to the ingressing part of the attached claim 1. The pivoting device is especially characterized by what is stated in the characterizing part of said claim.
The invention also relates to an operational means according to the ingressing part of the attached claim 11. The operational means is especially characterized by what is stated in the characterizing part of claim 11.
The invention is described here below in connection with an execution example and the attached drawings, on which
Figure 1 schematically shows a first embodiment of a pivoting device according to the invention across its pivoting axe and in an axially partlialcross section,
Figure 2 schematically shows a section A-A in figure 1,
Figure 3 schematically shows an axial section of a displaceably arranged pivoting device portion,
Figure 4 schematically shows a second embodiment of a pivoting device according to the invention across its pivoting axe and in an axially partial cross section, and
Figure 5 schematically shows a portion of an operational means and the pivoting device according to the invention in a side view across the the pivoting axes.
In figure 1 references 1 and 2 designate a first and a second portion of an operational means, respectively, being pivotingly and relatively connected. A first pivoting device portion 3 is arranged for a relative pivoting, being guided and not pivotally displaceable along a second pivoting device portion 4 in said first operational means portion by means of a within the operational means portion 1 running guide 5 and at least one in the operational means portion arranged power source 6. Said second pivoting device portion is pivotably and not displaceably mounted in said first operational means portion 1 and not pivotably fixed to said second operational means portion 2.
According to a preferred embodiment the first pivoting device portion 3 comprises a casing 7, displaceably guided in said first operational means portion and in which an inside guiding means 8 comprising a first gudiding element 9 is inserted and arranged in said second pivoting device portion 4 for a cooperation with a outside guiding means 10, circumsized by it.
Said casing 7 comprises according to prefered embodiments a power source 6 in forn of two preferably hydraulically operated cylinders 11, one on each side of the second pivoting device portion for displacing the casing, adapted to operate towards a dolly arranged in the first operational means portion.
The guiding elements 8, 10 preferably consist of beams 10 and grooves 8, respectively, engaged in a thread configuration with preferably twelve leads and a pitch of about 55-65*, preferably about 61*.
The guiding elements 5, figures 1 and 2, consist preferably of inside guiding rulers 5, screwed into the operational means portion 1 or casted together with the portion 1 as for the rest.
Also, according to a preferred embodiment said first guiding element 9 is devided across its axial direction, one part 9' being attachebly and pivotably arranged in the casing, where possible, to pivote relatively with the second part 9" to compensate any play in cooperation with said second guiding element.
The operational means portions cooperating with the pivoting device are preferably axially mounted contacting each other by means of end elements 13, 14 of the portions 1, 2, respectively.
Said second pivoting device portion is preferably mounted in and attached to an end element 13 of the first operational means portion 1 and attached in an end element of the second operational means portion 2. Moreover, the pivoting device 4 is after mounting inserted in the dolly 12.
An embodiment is shown, where the second pivoting device portion has a threaded end portion 15 projecting towards the end element 14 of the second operational means portion and projecting at the side 16 facing from the first pivoting device portion and adapted to cooperate with a nut element 17 for compensating any axial play by means of tightening the nut element, the second pivoting device portion being limitedly displaceable in the end element 14.
In the embodiment shown in figure 4 a pivoting device is arranged for a relative pivoting of the operational means portions in form of a socket 18 for an operating device, e.g. a bucket (not shown) and a casing portion 19 to carry the operating device 0 and pivoting device portions, the casing portion corresponding to said first operational means portion. In this embodiment the first pivoting device portion is displaceably guided in the casing portion generally according to figure 1 and the second pivoting device portion is fixed to the socket 18 and pivotably mounted in the casing portion end parts 20 or similar, the operating device for a sidewise swiveling being connected to the casing portion.
In figure 5 an embodiment of the operational means is illustrated which in many cases is preferred with a pivoting device according to the invention. The existing operating arm portions 21, 22, 23, 24 are four, the two innermost, nearest to the a supporting unit 25 existing portions 21, 22 being relatively pivotable as also the two utmost 23, 24 of the four portions, the cnetral pair 22, 23 of the portions bein relatively swiveable in a plane generally parallel to the pivoting axes 26, around which the operational means portions are relatively pivotable.
According to a preferred embodiment the operational means portions are generally cast.
Regarding the preferred pivotability the utmost 22 of the two inner portions 21, 22 is pivotable around about 90 degrees in one direction and about 180 degrees in the other direction from the position shown in figure 5 and the outer 24 of the the two outside portions 23, 24 is about + 190 degrees pivotable from the position shown in figure 5.
The function of the device according to the invention should be essentially evident from what has been stated previously.
Also, it is evident from above, that the invention provides essential advantages in form of protection, simplicity, compactness, low costs and the possibility for a play compensation in comparison with what is already known in the art.
Hitherto, the invention has been described in connection to an execution example. There naturally exist various embodiments, and minor changes and amplifications might be envisaged without departing from the idea of the invention.
As to pivoting devices of the kind according to figure 1 the stroke of the casing and the portion 3 is about 500 mm and the thread length of the portion 4 is about 1200 mm. The diameter of the portion 4 is about 80 mm and the pitch is about 400 mm (for each rum). An alternative for arranging one part of the first guiding element pivotable and attachable in oval holes 26, figure 3, in the casing is to provide inserts, shims, between the parts for compensating the play and a simultaneous locking, fixation, the pivotable part then being freely pivotable without any attachment to the casing.
According to an embodiment preferred in certain cases, at least one cylinder 27 is supported, e.g. in the casing 19 by means of a pivotable arrangement for the operational tool 0, in this case two cylinders 27, for operating the operating tool, e.g. for operating a bucket 0 against a dolly (not shown).
In figure 3 an embodiment is illustrated with the two parts 9', 9" of the pivoting device portion 3 being fixed by means of screws 28 in holes 29 in the casing 7. An embodiment is shown with four holes for each part equally spaced. The holes 29 for the first part 9' are here oval in a bent configuration for attaching the part in various positions for a play compensation.
Thus, the invention is not limited to the embodiments stated previously and might be modified within the scope of the attached claims.

Claims

Claims
1. A pivoting device for operational means such as dredger arm portions in dredgers, the pivoting device being adpated to pivotably connecting two operational means portions by means of a relative displacement of two pivoting device portions, each connected with one of said portions, the pivoting device portions comprising guiding means to achieve a relative pivoting of the pivoting device portions, characterized in that a first pivoting device protion (3) is guided and not pivotably displaceable along a second pivoting device portion (4) in a first operational means portion (1) by means of guiding means (5) running in the operational means portion and at least one power source (6) arranged in the operational means portion, said second pivoting device portion (4) being pivotably and not displacebaly mounted in said first operational means portion and not pivotably attached to a second operational means portion (2).
2. A device according to claim 1, characterized in that said first pivoting device portion comprises a casing (7), gudided displaceably in said first operational means portion (1) and in which an inner guiding means (8) comprising first guiding elements (9) is inserted in and arranged at said second pivoting device portion (4) to cooperate with outside guiding means (10) circumcising it.
3. A device according to claim 2, characterized in that said casing (7) comprises two, preferably hydraulically operated cylinders (11) to displace the casing, being adapted to act towards a dolly (12) arranged in the first operational means portion.
4. A device according to claim 1, 2 or 3, characterized in that said guiding means consists of beams (10) and grooves (8) respectively running in a thread configuration.
5. A device according to claim 4, characterized in that said thread configuration preferably has twelve leads and a pitch of about 55-65*, preferably about 61*.
6. A device according to claim 2, characterized in that said first guiding element (9) is devided across its axial direction, one part (9') being attachably and piovtably arranged for pivoting in relation to the other part (9") to compensate for any play in cooperation with said second guiding element.
7. A device according to claim 1, 2, 3, 4, 5 or 6, characterized in that said second pivoting device portion (4) is mounted inserted into an end element (13) of said first operational means portion and attached to said end element (14) of said second operational means portion.
8. A device according to claim 1, 2, 3, 4, 5 or 6, characterized in that the operational means portions (1, 2) cooperating with the pivoting device are axially mounted contacting each other by means of end elements (13, 14) of the corresponding operational means.
9. A device according to claim 7 or 8, characterized in that said second pivoting device portion comprises a threaded end part (15) running towards the end element (14) of said second operational means portion and projecting from the end element side (16) facing from said second pivoting device portion and adapted to cooperate with a nut element (17) to compensate any axial play, the second pivoting device portion being limitedly displaceable within said end element (14).
10. A device according to claim 4, 5, 6, 7, 8 or 9, characterized in that the diameter of said second guiding element is about 80 mm and the pitch is about 400 mm.
11. An operational means , such as such as a dredger arm in a dredger, adapted to be at one end supported by a supporting unit and at its other end supported by an operating tool and comprising at least two operational means portions relatively pivotable by means of two relatively displaceable pivoting device portions connected by one of said portions, the pivoting device portions comprising guiding means for achieving a relative pivoting of the pivoting device portions, characterized in that a first pivoting device portion (3) is guided and not pivotably displaceable along a second pivoting device portion (4) in a first operational means portion (1) by means of guides (5) running in the operational means portion and at least one power source (6) provided in the operational means portion, said second pivoting device portion (4) being pivotably and not displaceably mounted in said first operational means portion and not pivotably attached to a second operational means portion (2).
12. An operational means according to claim 11, characterized in that the operational means portions (1, 2, 21, 22, 23, 24) have a generally cross section configuration of an U- formed beam or a box girder to support the operational means portions (3, 4).
13. An operational means according to claim 11 or 12, characterized in that the operational means portions are generally cast.
14. An operational means according to claim 11, 12 or 13, characterized in that two pairs of in series arranged operational means portions are provided being relatively pivotable in pairs.
15. An operational means according to claim 14. characterized in that the two pairs of operational means portions are relatively pivotable in a plane generally parallel to the axes, around which the operational means portions are relatively pivotable.
16. An operational means according to claim 11, 12, 13, 14 or 15, characterized in that two outside operational means portions (18, 19) support an operating tool (0), such as a buck, pivotable sidewise by means of an attachment arrangement comprising relatively displaceable pivoting device portions (3, 4) for pivoting the operating tool in relation to a support (18).
PCT/SE1994/001190 1994-12-09 1994-12-09 Turning arrangement for operation means and operation means Ceased WO1996018003A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SE1994/001190 WO1996018003A1 (en) 1994-12-09 1994-12-09 Turning arrangement for operation means and operation means
AU13940/95A AU1394095A (en) 1994-12-09 1994-12-09 Turning arrangement for operation means and operation means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1994/001190 WO1996018003A1 (en) 1994-12-09 1994-12-09 Turning arrangement for operation means and operation means

Publications (1)

Publication Number Publication Date
WO1996018003A1 true WO1996018003A1 (en) 1996-06-13

Family

ID=20393584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/001190 Ceased WO1996018003A1 (en) 1994-12-09 1994-12-09 Turning arrangement for operation means and operation means

Country Status (2)

Country Link
AU (1) AU1394095A (en)
WO (1) WO1996018003A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927706A (en) * 1956-07-20 1960-03-08 Bucyrus Erie Co Hydraulically-operated dipper
US2989198A (en) * 1959-01-19 1961-06-20 Earth Equipment Corp Backhoes for ditch digging machines
US4089229A (en) * 1976-08-02 1978-05-16 James Leonard Geraci Rotary torque actuator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927706A (en) * 1956-07-20 1960-03-08 Bucyrus Erie Co Hydraulically-operated dipper
US2989198A (en) * 1959-01-19 1961-06-20 Earth Equipment Corp Backhoes for ditch digging machines
US4089229A (en) * 1976-08-02 1978-05-16 James Leonard Geraci Rotary torque actuator

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Publication number Publication date
AU1394095A (en) 1996-06-26

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