EP0887475A1 - Gelenk für den Arm eines Baggers - Google Patents

Gelenk für den Arm eines Baggers Download PDF

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Publication number
EP0887475A1
EP0887475A1 EP97304570A EP97304570A EP0887475A1 EP 0887475 A1 EP0887475 A1 EP 0887475A1 EP 97304570 A EP97304570 A EP 97304570A EP 97304570 A EP97304570 A EP 97304570A EP 0887475 A1 EP0887475 A1 EP 0887475A1
Authority
EP
European Patent Office
Prior art keywords
boom
link
pivotably connected
excavator
whose
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
Application number
EP97304570A
Other languages
English (en)
French (fr)
Other versions
EP0887475B1 (de
Inventor
Rinta Denda
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.)
Takeuchi Manufacturing Co Ltd
Original Assignee
Takeuchi Manufacturing Co Ltd
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
Priority to JP34211595A priority Critical patent/JP3172668B2/ja
Application filed by Takeuchi Manufacturing Co Ltd filed Critical Takeuchi Manufacturing Co Ltd
Priority to EP97304570A priority patent/EP0887475B1/de
Priority to DE69724770T priority patent/DE69724770T2/de
Publication of EP0887475A1 publication Critical patent/EP0887475A1/de
Application granted granted Critical
Publication of EP0887475B1 publication Critical patent/EP0887475B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • 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
    • E02F3/302—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 an additional link

Definitions

  • the present invention relates to an excavator and a power shovel having the excavator, more precisely relates to an excavator, which comprises a boom whose one end is pivotably connected to a base section, an arm whose one end is connected to the other end of the boom, and a bucket being attached to the other end of the arm, and a power shovel having said excavator.
  • a conventional power shovel having a conventional excavator is shown in Fig. 4.
  • the power shovel includes: a boom 1; a boom cylinder 2; a boom foot section 3 on a vehicle section having crawlers; an arm 4; a bucket 5; and a boom pin 6.
  • the boom foot section 3 acts as a base section for supporting the excavator.
  • the turning angle of the boom 1 is about 140 ° or less because the linear movement of the boom cylinder 2 is directly and merely converted into the turning movement of the boom 1.
  • an upper part of the power shovel which includes the excavator, an operator's cabin, etc., can be rotated within the width of the vehicle section having the crawlers.
  • the conventional power shovel usually have a long boom 1, so the arm 4 and the bucket 5 are retracted in an inner space of the crooked boom 1 (see Fig. 4) when the excavator is not operated.
  • the excavator can be located within the width of the vehicle section.
  • the power shovel is conveyed by a truck, etc., it is advantageous to locate the excavator within the width of the vehicle section.
  • the boom must be extended upwardly. So the height of the power shovel must be relatively high due to the long boom. In some cases, e.g., conveying the power shovel by a truck, the high boom accidentally interferes with an electric power line, etc. which are existed in the air. Thus, a lower excavator or a lower power shovel has been required.
  • An object of the present invention is to provide an excavator, which is capable of widely moving a boom and limiting the total height of the excavator when the excavator is retracted, and a power shovel having said excavator.
  • the excavator of the present invention comprises:
  • the other end of the first link, the other end of the second link and the other end of the boom cylinder may be pivotably connected one another.
  • the boom can be widely moved or widely turned by the first link and the second link, so the total height of the excavator can be made lower when the excavator is retracted and located within the width of the power shovel.
  • Fig. 1 is a side view of the power shovel of the present embodiment
  • Fig. 2 is a side view of the power shovel in a state of extending a boom cylinder
  • Fig. 3 is a side view of the power shovel in a state of shortening the boom cylinder.
  • the boom pin 6 is pivotably attached to the boom foot section 3.
  • an excavator which includes the boom 1, the arm 4 and the bucket 5, is pivotably connected to the boom foot section 3, which is an example of a base section.
  • One end of the boom cylinder 2 is pivotably connected to a mid position of the boom 1.
  • first link 8 is pivotably connected to one end of the boom 1 by the first link pin 10; the other end of the first link 8 is pivotably connected to a front end of a rod of the boom cylinder 2, which is the other end of the boom cylinder 2, by the second link pin 11.
  • first link pin 10 which pivotably connects the boom 1 and the first link 8 is shifted to the other end of the boom 1 with respect to the boom pin 6, which pivotably connects the boom 1 and the boom foot section 3. So, the first link pin 10 is located at a position in which the boom 1 is slightly crooked backward in Fig. 1.
  • One end of the second link 9 is pivotably connected to the boom foot section 3 by the third link pin 12; the other end of the second link 9 is pivotably connected to the other end of the first link 8 by the second link pin 11.
  • the third link pin 12 is located at a lower front end of the boom foot section 3 in Fig. 1.
  • the other end of the second link 9, the other end of the first link 8 and the front end of the rod of the boom cylinder 2, which is the other end of the boom cylinder 2 are pivotably connected one another by the second link pin 11. Said three ends are pivotably connected by the second link pin 11, so the structure can be simple, and driving force for moving the boom 1 can be transmitted effectively.
  • the front end of the rod of the boom cylinder 2 (the other end of the boom cylinder 2) need not be connected together with the two ends.
  • the other end of the boom cylinder 2 may be connected the other end of the first link 8 or the other end of the second link 9 by another link pin.
  • the one end of the first link 8 is pivotably connected to the boom foot section 3, to which the boom 1 is pivotably connected, by the first link pin 10.
  • the other end of the first link 8, the other end of the boom cylinder 2 and the other end of the second link 9 are mutually pivotably connected one another.
  • the one end of the second link 9 is pivotably connected to the boom foot section 3 by the third link pin 12.
  • the power shovel of the present embodiment further has: the first link 8; the second link 9; the first link pin 10; the second link pin 11; and the third link pin 12.
  • the first link 8 When the boom cylinder 2 is extended and shortened, the first link 8 is upwardly and downwardly turned about the first link pin 10 because the first link 8 is pivotably connected to a part of the boom 1, which is near the boom foot section 3, by the first link pin 10. Simultaneously, the second link 9, which is pivotably connected to the other end of the first link 8, is turned, so that the second link 9, whose one end is pivotably connected to the boom foot section 3, presses the boom foot section 3. Then the boom 1 is upwardly and downwardly turned within angle about 180° by the link action of the first and the second links 8 and 9.
  • a four-joint link mechanism is employed so as to convert the linear movement of the rod of the boom cylinder 2 into the vertical turning movement of the boom 1.
  • speed of the turning movement of the boom 1 is very high with respect to speed of the linear movement of the boom cylinder 2 at the beginning and at the termination of the movement.
  • the first and the second links 8 and 9, etc. are designed to move the first link 8 to a position below the boom pin 6, so the speed of the turning movement of the boom 1 is not very high with respect to the speed of the linear movement of the boom cylinder 2 at the beginning and at the termination of the movement.
  • angle of the boom 1 with respect to a standard line, e.g., a horizontal plane, of the vehicle section is equal to angle between the standard line and a line "R", which connects the boom pin 6 and the first link pin 10.
  • the first link 8 is turned about the first link pin 10. Since the boom cylinder 2 and the second link 9 are pivotably connected to the other end of the first link 8 by the second link pin 11, the second link 9 is also turned so that the second link 9 presses the third link pin 12, which is attached to the boom foot section 3. Then the boom 1 is turned about the boom pin 6 by the link action of the first and the second links 8 and 9. Finally, the boom cylinder 2 is extended as shown in Fig. 2, so the angle of the boom 1 with respect to the standard line of the vehicle section is shown as the angle between the standard line and the line "R" in Fig. 2. In Fig.
  • a point "Q" (the first link pin 10) has been moved to the opposite side with respect to a point "P" (the boom pin 6).
  • the boom 1 can be turned about 180 ° with respect to the standard line of the vehicle section. Since the boom 1 can be turned within wide angle, the movable range of the boom 1 can be very wide when the excavator is used and when the excavator is retracted. Note that, the movable range of the boom 1 can be adjusted by connecting positions and length of the first and the second links 8 and 9, so the boom 1 can be turned 180° or more.
  • each end of the boom cylinder 2 is directly connected to the boom 1 and the boom foot section 3, so the turning angle of the boom 1 is about 140 ° even the boom cylinder 2 is fully extended and shortened.
  • the boom 1 of the excavator can be turned about 180° by employing the first link 8 and the second link 9. With the wide movable angle, the boom 1 can be shortened, and the total height of the power shovel can be lower when the excavator is retracted (see Fig. 1). Construction work can be executed effectively by the excavator having the widely movable boom 1. Further, since the total height of the power shovel can be lower, the power shovel can be easily conveyed by a truck, etc. without interference with, for example, an electric power line in the air.

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)
  • Operation Control Of Excavators (AREA)
EP97304570A 1995-12-28 1997-06-26 Gelenk für den Arm eines Baggers Expired - Lifetime EP0887475B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP34211595A JP3172668B2 (ja) 1995-12-28 1995-12-28 掘削作業装置およびパワーショベル
EP97304570A EP0887475B1 (de) 1995-12-28 1997-06-26 Gelenk für den Arm eines Baggers
DE69724770T DE69724770T2 (de) 1997-06-26 1997-06-26 Gelenk für den Arm eines Baggers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP34211595A JP3172668B2 (ja) 1995-12-28 1995-12-28 掘削作業装置およびパワーショベル
EP97304570A EP0887475B1 (de) 1995-12-28 1997-06-26 Gelenk für den Arm eines Baggers

Publications (2)

Publication Number Publication Date
EP0887475A1 true EP0887475A1 (de) 1998-12-30
EP0887475B1 EP0887475B1 (de) 2003-09-10

Family

ID=26147485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97304570A Expired - Lifetime EP0887475B1 (de) 1995-12-28 1997-06-26 Gelenk für den Arm eines Baggers

Country Status (2)

Country Link
EP (1) EP0887475B1 (de)
JP (1) JP3172668B2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856884A1 (fr) * 2003-07-01 2005-01-07 Kuhn Audureau Sa Machine pour la coupe de vegetaux
WO2006123948A2 (en) 2005-05-16 2006-11-23 Rocktec Limited Improved hammer mounting
NL1033260C2 (nl) * 2007-01-22 2008-07-23 Bos & Kalis Baggermaatsch Graafinrichting.
WO2013097647A1 (zh) 2011-12-31 2013-07-04 广州呈和科技有限公司 一种聚丙烯β晶型成核剂组合物及其应用

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839005A (zh) * 2010-05-26 2010-09-22 常州创联矿山设备制造有限公司 用于轮胎式防爆装载机的工作装置
TW201505134A (zh) * 2013-07-25 2015-02-01 Lingsen Precision Ind Ltd 光學模組的封裝結構
JP2016154515A (ja) * 2015-02-26 2016-09-01 株式会社ササキコーポレーション 草刈機
DE102021106129A1 (de) 2021-03-12 2022-09-15 Wacker Neuson Linz Gmbh Mobile Arbeitsmaschine, insbesondere Bagger, mit einem Fahrzeugrahmen und einem Hubarm

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505120A (fr) * 1966-04-04 1967-12-08 Warner Swasey Co Machine de manutention de matériaux
US3662907A (en) * 1970-04-17 1972-05-16 Unic Corp Device for actuating a swingable boom
JPS60168828A (ja) * 1984-02-14 1985-09-02 Handoothe- Kogyo Kk 掘削機
GB2184092A (en) * 1985-12-11 1987-06-17 Takraf Schwermasch Luffing jib cranes
FR2718769A1 (fr) * 1994-04-13 1995-10-20 Gibert Pierre Jean Marie Ensemble compact de deux bras articulés, dont l'extrémité libre est équipée d'un porte équipement, destiné à des véhicules de manutention, et terrassement.
US5592762A (en) * 1995-08-16 1997-01-14 Deere & Company Excavator bucket linkage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505120A (fr) * 1966-04-04 1967-12-08 Warner Swasey Co Machine de manutention de matériaux
US3662907A (en) * 1970-04-17 1972-05-16 Unic Corp Device for actuating a swingable boom
JPS60168828A (ja) * 1984-02-14 1985-09-02 Handoothe- Kogyo Kk 掘削機
GB2184092A (en) * 1985-12-11 1987-06-17 Takraf Schwermasch Luffing jib cranes
FR2718769A1 (fr) * 1994-04-13 1995-10-20 Gibert Pierre Jean Marie Ensemble compact de deux bras articulés, dont l'extrémité libre est équipée d'un porte équipement, destiné à des véhicules de manutention, et terrassement.
US5592762A (en) * 1995-08-16 1997-01-14 Deere & Company Excavator bucket linkage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 006 (M - 445) 11 January 1986 (1986-01-11) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856884A1 (fr) * 2003-07-01 2005-01-07 Kuhn Audureau Sa Machine pour la coupe de vegetaux
WO2006123948A2 (en) 2005-05-16 2006-11-23 Rocktec Limited Improved hammer mounting
NL1033260C2 (nl) * 2007-01-22 2008-07-23 Bos & Kalis Baggermaatsch Graafinrichting.
WO2013097647A1 (zh) 2011-12-31 2013-07-04 广州呈和科技有限公司 一种聚丙烯β晶型成核剂组合物及其应用
US9243123B2 (en) 2011-12-31 2016-01-26 Gch Technology Co., Ltd. B-crystal form nucleating agent composition for polypropylene and use thereof

Also Published As

Publication number Publication date
EP0887475B1 (de) 2003-09-10
JP3172668B2 (ja) 2001-06-04
JPH09177112A (ja) 1997-07-08

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