WO1996030597A1 - Articulation pour pelle hydraulique - Google Patents
Articulation pour pelle hydraulique Download PDFInfo
- Publication number
- WO1996030597A1 WO1996030597A1 PCT/JP1996/000826 JP9600826W WO9630597A1 WO 1996030597 A1 WO1996030597 A1 WO 1996030597A1 JP 9600826 W JP9600826 W JP 9600826W WO 9630597 A1 WO9630597 A1 WO 9630597A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pin
- boom
- arm
- link device
- cylinder
- Prior art date
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
- E02F3/302—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
-
- 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
- E02F3/32—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 working downwardly and towards the machine, e.g. with backhoes
Definitions
- the present invention relates to a hydraulic excavator link concealment and, more particularly, to a hydraulic excavator link device having a simple structure and capable of horizontal excavation. Background technology
- FIG. 4 a technology shown in FIG. 4 has been known as a link mechanism of a normal hydraulic shovel.
- a boom 2 is mounted on an upper revolving superstructure 31 mounted on the lower traveling structure 30 by a boom foot pin 1 so as to be able to be raised and lowered.
- One end of the boom cylinder 5 is connected to the upper revolving unit 31 by a boom bottom bin 3 and the other end is connected to the boom 2 by a boom head bin 18.
- an arm 7 is swingably mounted by an arm foot pin 6.
- the arm cylinder 10 has one end connected to the boom 2 by an arm bottom pin 8 and the other end connected to the rear end of the arm 7 by an arm head bin 9, and expands and contracts to swing the arm 7.
- a baggage 12 is swingably mounted by a baggage bin 11.
- One end of the baggage cylinder 17 is connected to the arm 7 by a baguette bottom pin 16, and the other end is connected to the baggage head pin 13, the baggage link 14, and the baguette link pin 15. Connected to 2.
- the baget cylinder 17 expands and contracts, causing the bucket 12 to swing.
- the boom 2 is raised and lowered by expanding and contracting the bump cylinder 5 and the cutting edge 23 of the tip of the baguette 12 is brought into contact with the excavation site.
- the arm cylinder 10 is extended and the tip of the arm 7 is drawn to excavate.
- the baguette cylinder 17 is stretched to raise the baguette 12 to the front and scoop up the earth and sand.
- the present invention has been made in order to solve the problems of the related art, and has as its object to economically provide a hydraulic shovel link device having a simple structure and capable of horizontal excavation.
- the hydraulic excavator link device includes:
- the boom is mounted on the vehicle body by a boom foot pin so as to be able to move up and down, and the boom is pivoted by a boom cylinder having one end attached to the vehicle body via a boom cylinder bottom pin.
- Arm oscillated by arm cylinder and bucket foot pin at the end of arm A hydraulic excavator equipped with a baggage mounted on the
- a power lever having a first fulcrum pivotally connected to the boom by a boom pin, a second fulcrum pivotally connected to the boom cylinder by a boom head bin, and a third fulcrum to which an arm pin is attached;
- a power rod having one end connected to an arm power pin attached to the arm and the other end connected to the arm pin.
- the boom pin, the boom head pin and the boom bottom pin be located on a straight line with the tip of the baguette positioned at the intersection of the vertical line passing through the arm foot pin and the ground surface.
- a straight line connecting the boom pin and the arm pin and a straight line connecting the arm foot pin and the arm power pin are substantially parallel.
- the straight line connecting the boom pin and the arm foot pin and the straight line connecting the arm pin and the arm power pin are almost parallel.
- the tip of the bucket blade should be parallel to the vertical line passing through the arm foot pin and the ground surface.
- the vertical distance from the straight line connecting the boom pin to the boom bottom pin to the boom foot pin is r1, the distance from the boom pin to the boom head bin is r2, and the boom foot pin to the arm foot.
- the ratio r 1 / X 2 and the ratio LI / L 2 are substantially equal.
- a range where the ratio r l / r 2 is approximately equal to the ratio L 1 / L 2 a range smaller than the r 2 force (rl ⁇ L 2 ZL l) is more preferable.
- the boom pin, the boom head bin, and the boom bottom pin are positioned in a straight line with the tip of the baguette positioned on the vertical line passing through the arm foot pin and the ground surface, and are positioned on this straight line.
- the distance between the boom pin and the boom head bin is set so that the tip of the blade moves almost straight when the arm is operated forward of the vehicle with the bucket cylinder fixed while the bucket cylinder is stretched. Is desirable .
- the ratio rl / r2 of the distance rl to the distance r2 is substantially equal to the ratio LI / L2 of the distance L1 to the distance L2, the movement of the cutting edge becomes almost linear. If the distance r 2 is slightly smaller than r 1 XL 2 / LI, the error can be minimized. Furthermore, by setting the distance r2 so that the tip of the blade edge of the bucket moves in a substantially straight line with the expansion and contraction of the bucket cylinder fixed, a straightening operation can be performed even in the arm pushing operation. it can. When straight excavation is not performed, the power rod can be removed and the power lever can be fixed to the boom to use it as a normal hydraulic excavator. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a side view of a hydraulic excavator showing a configuration of a first embodiment of link concealment according to the present invention
- Fig. 2 is a side view of the hydraulic shovel for explaining the relative dimensions of each part when the arm in Fig. 1 is vertical,
- FIG. 3 is a side view of a hydraulic excavator showing a configuration of a link apparatus according to a second embodiment of the present invention.
- FIG. 4 is a side view of a conventional hydraulic excavator having a link mechanism, and
- FIG. It is a side view of the hydraulic excavator which concerns on a prior art.
- a boom 2 is attached to an upper revolving structure 31 mounted on a lower traveling structure 30 by a boom foot bin 1 so that the boom 2 can be raised and lowered.
- a first fulcrum of a triangular power lever 19 having three fulcrums is swingably mounted by a boom pin 4.
- One end of the boom cylinder 5 is connected to the upper swing body 31 by a boom bottom pin 3, and the other end is connected to a second fulcrum of a power lever 19 by a boom head bin 18.
- an arm 7 is attached by an arm foot pin 6 so as to be swingable.
- the rear end of the arm 7 is connected to the arm cylinder 10 by an arm head bin 9, and swings due to the expansion and contraction of the arm cylinder 10.
- a baggage 12 is swingably mounted by a baggage bin 11.
- One end of the bucket cylinder 17 is connected to the arm 7 by the bucket bottom pin 16, and the other end is bagged via the baggage head bin 13, the bag link 14 and the baggage link pin 15. It is connected to 1 2.
- the baguette 12 swings due to the expansion and contraction of the socket cylinder 17.
- One end of the power rod 22 is connected to a third fulcrum of the power lever 19 by an arm pin 20 and the other end is connected to the arm 7 by an arm power pin 21. 2 undulate.
- the straight line connecting the boom pin 4 and the arm pin 20 and the straight line connecting the arm foot pin 6 and the arm power pin 21 are almost parallel, and the straight line connecting the boom pin 4 and the arm foot pin 6 and the arm pin
- the straight line connecting 20 and the arm power pin 21 is substantially parallel. That is, the boom pin 4, the arm foot pin 6, the arm power pin 21 and the arm pin 20 form a substantially parallelogram.
- the arm cylinder 10 When excavating the ground horizontally, as shown in Fig. 1, the arm cylinder 10 is shortened, the arm 7 is extended forward, and the tip of the cutting edge 23 of the bucket 12 is brought into contact with the ground surface AB. Next, the arm cylinder 10 is extended to draw the arm 7 toward the user. The arm 7 swings the power lever 19 via the power rod 22 while being in the vertical posture as shown in FIG. When the cutting edge 23 passes the point C, the boom 2 lowers again. At this time, since the dimensional ratios of the respective parts are in the relationship described above, the tip of the cutting edge 23 tends to be slightly high in the middle, but moves substantially horizontally along the ground surface AB. That is, the operator can easily perform horizontal excavation only by operating the arm cylinder 10.
- FIG. 3 shows the configuration of a second embodiment of the link device.
- Boom 2 has three fulcrums
- An intermediate fulcrum of the power lever 19a is swingably mounted by a boom pin 4a.
- the fulcrum below the power lever 19a is connected to the head of the boom cylinder 5 by a boom head pin 18a.
- the upper fulcrum of the power lever 19a is connected to one end of the power rod 22a by an arm bin 20a.
- the other end of the mouthpiece 22 is connected to the rear end of the arm 7 by an arm power pin 21a.
- Other parts are the same as in the first embodiment.
- the straight line connecting the arm pin 20a and the boom pin 4a is almost parallel to the straight line connecting the arm power pin 21a and the arm foot pin 6, and the straight line connecting the arm power pin 21a and the arm pin 20a.
- the straight line connecting the arm foot pin 6 and the boom pin 4a is substantially parallel. That is, the arm pin 20a, the arm power pin 21a, the arm foot pin 6, and the boom pin 4a form a substantially parallelogram. The operation is the same as in the first embodiment.
- the dimensional configuration of the link device is set so that the error from the straight excavation is minimized, so that the cost is reduced.
- high-precision horizontal excavation and straight excavation of a slope can be performed simply by operating the arm (that is, the arm operation valve), fatigue of the operator can be reduced and workability can be improved.
- horizontal excavation and straight excavation of a slope can be performed with high accuracy by a simple operation only by operating an arm, thereby reducing operator fatigue and improving workability. It is useful as a link device S for hydraulic excavators that can increase the excavating power of the dome.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96907691A EP0818581A4 (en) | 1995-03-30 | 1996-03-28 | ARTICULATION FOR HYDRAULIC SHOVEL |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10074895A JP3369025B2 (ja) | 1995-03-30 | 1995-03-30 | 油圧ショベル用リンク装置 |
JP7/100748 | 1995-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996030597A1 true WO1996030597A1 (fr) | 1996-10-03 |
Family
ID=14282161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/000826 WO1996030597A1 (fr) | 1995-03-30 | 1996-03-28 | Articulation pour pelle hydraulique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0818581A4 (ja) |
JP (1) | JP3369025B2 (ja) |
KR (1) | KR19990007776A (ja) |
WO (1) | WO1996030597A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112696198A (zh) * | 2020-12-18 | 2021-04-23 | 江西鑫通机械制造有限公司 | 一种长距离煤矿挖掘机臂 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1888302A4 (en) | 2005-05-16 | 2015-05-06 | Terminator Ip S A | IMPROVED BREAKING MACHINE |
CN105421503B (zh) * | 2015-11-10 | 2018-07-31 | 东莞市京工自动化设备有限公司 | 一种可控机构式搬运机器手 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6158263U (ja) * | 1984-09-25 | 1986-04-19 | ||
JPS61169165U (ja) * | 1985-04-03 | 1986-10-20 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2067573A5 (ja) * | 1969-11-07 | 1971-08-20 | Agren Rolf | |
GB2031843B (en) * | 1978-09-20 | 1982-09-22 | Ruston Bucyrus Ltd | Face loading shovel excavator |
-
1995
- 1995-03-30 JP JP10074895A patent/JP3369025B2/ja not_active Expired - Fee Related
-
1996
- 1996-03-28 WO PCT/JP1996/000826 patent/WO1996030597A1/ja not_active Application Discontinuation
- 1996-03-28 EP EP96907691A patent/EP0818581A4/en not_active Withdrawn
- 1996-03-28 KR KR1019970706733A patent/KR19990007776A/ko not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6158263U (ja) * | 1984-09-25 | 1986-04-19 | ||
JPS61169165U (ja) * | 1985-04-03 | 1986-10-20 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0818581A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112696198A (zh) * | 2020-12-18 | 2021-04-23 | 江西鑫通机械制造有限公司 | 一种长距离煤矿挖掘机臂 |
CN112696198B (zh) * | 2020-12-18 | 2023-11-10 | 江西鑫通机械制造有限公司 | 一种长距离煤矿挖掘机臂 |
Also Published As
Publication number | Publication date |
---|---|
JP3369025B2 (ja) | 2003-01-20 |
JPH08269995A (ja) | 1996-10-15 |
EP0818581A4 (en) | 1998-07-01 |
EP0818581A1 (en) | 1998-01-14 |
KR19990007776A (ko) | 1999-01-25 |
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