WO1997013925A1 - Compresseur-concasseur - Google Patents

Compresseur-concasseur Download PDF

Info

Publication number
WO1997013925A1
WO1997013925A1 PCT/JP1996/002958 JP9602958W WO9713925A1 WO 1997013925 A1 WO1997013925 A1 WO 1997013925A1 JP 9602958 W JP9602958 W JP 9602958W WO 9713925 A1 WO9713925 A1 WO 9713925A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
boom
floating
rolling
pressure
Prior art date
Application number
PCT/JP1996/002958
Other languages
English (en)
Japanese (ja)
Inventor
Shigeru Shinohara
Takayuki Mutou
Tadao Karakama
Mitsuru Arai
Koichi Morita
Original Assignee
Komatsu 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
Application filed by Komatsu Ltd. filed Critical Komatsu Ltd.
Priority to EP96933627A priority Critical patent/EP0855468A4/fr
Publication of WO1997013925A1 publication Critical patent/WO1997013925A1/fr

Links

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/124—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus moved rectilinearly, e.g. road-breaker apparatus with reciprocating tools, with drop-hammers
    • 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
    • E02F3/325—Backhoes of the miniature type
    • 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
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • 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
    • 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
    • E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2095—Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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 rolling and crushing work machine that performs a rolling and crushing operation using a power shovel or the like.
  • an object of the present invention is to provide a compaction and crushing work machine capable of performing both a compaction work and a crushing work with one unit. Disclosure of the invention
  • the timer relay switches the floating switching valve to set the floating valve to the floating position only when the detection signal is not input from the switch.
  • the floating state switching means includes a boom valve for supplying pressure oil to the boom cylinder having a floating position, and a boom valve hydraulic pilot valve for controlling the boom valve is provided with a detent mechanism. It is preferable that the boom valve is switched to a floating position when a full-stroke operation is performed on the boom valve hydraulic pilot valve. According to this configuration, the boom cylinder can be floated only by operating the hydraulic pilot valve for the boom valve.
  • a work hole is formed in the main body of the vibration generator so that a cap provided with a hook can be detachably attached to the work tool hole.
  • the pressure switch be a pressure switch that detects the pressure of the service valve pilot circuit that connects the service valve and the service valve hydraulic pilot valve.
  • the second operation detecting means detects, from a boom hydraulic pilot valve that controls the boom valve, the higher pressure of the hydraulic oil that acts on the first and second pressure receiving portions of the boom valve. And a pressure switch for detecting the pressure on the output side of the shuttle valve.
  • a floating switch wherein a 0 N signal from the floating switch and a rolling signal from the selector switch are input, and the pressure switch is
  • a vibration generator 12 is mounted in the arm 8.
  • This vibration generator 12 is provided with a piston 14 slidably in a main body 13 and alternately supplies pressure oil to pressure receiving chambers at both ends of the piston 14 by piston.
  • the tongue 14 is made to reciprocate, and the breaker chisel 15 and the pressurizing tool 16 can be exchangeably mounted on the main body 13.
  • An engine 17 provided on the upper body 3 drives a hydraulic pump 18.
  • the discharge side of the hydraulic pump 18 is connected to the inlet ports of the boom valve 19, the arm valve 20, the packet valve 21, and the service valve 22.
  • the first 'second actuating ports 23, 24 of the boom valve 19 are connected to the extension chamber 7a of the boom cylinder 7 in the first and second circuits 25, 26. It is connected to the compression side 7b.
  • the function port 27 of the service valve 22 is connected to the vibration generator 12 by a circuit 28.
  • a floating valve 29 is provided in the middle of the first circuit 25 and the middle of the second circuit 26.
  • the floating valve 29 is held at the communication position a by spring, and is switched to the floating position b when pressurized oil is supplied to the pressure receiving portion 30 and contracts with the extension chamber 7 a of the boom cylinder 7. Connect chamber 7 b to tank 31.
  • the upper vehicle body 3 is provided with a hydraulic pilot valve 32 for a boom valve.
  • a hydraulic pilot valve 32 for a boom valve By operating the lever 32a of the hydraulic pilot valve 32 for the boom valve to switch from the neutral position c to the extended position d or the contracted position e, the first boom valve 19 Supply pressure oil to the pressure receiving part 19a or the second pressure receiving part 19b, and switch the boom valve 19 from the neutral position to the extended position or the contracted position.
  • FIG. 1 is a configuration explanatory view showing a first embodiment of a rolling and crushing work machine according to the present invention.
  • FIG. 2 is an explanatory diagram of a specific structure of the vibration generator of the first embodiment.
  • FIG. 3 is an enlarged sectional view of a part of the main body of the vibration generator.
  • FIG. 4 is a configuration explanatory view showing a second embodiment of the rolling and crushing work machine according to the present invention.
  • FIG. 5 is a configuration explanatory view showing a third embodiment of the rolling and crushing work machine according to the present invention.
  • an upper body 3 is rotatably mounted on a lower body 2 provided with a traveling body 1, and the upper body 3 is provided with a seat 4 and a plurality of control members 5.
  • a boom 6 is attached to the upper body 3 so as to be vertically swingable, and is driven by a boom cylinder 7.
  • An arm 8 is attached to the boom 6 so as to be able to swing up and down, and is driven by an arm cylinder 9.
  • a bucket 10 is attached to the arm 8 so as to be vertically rotatable, and is driven by a bucket cylinder 11. These constitute a power shovel.
  • the cylinder section 52 is constituted.
  • the servo valve 53 has a pump port 54, a main port 55, a tank port 56, and an auxiliary port 57, and the pump port 54 is the third port of the cylinder section 52. It communicates with the first room 49 and can be switched to the neutral position A, the first position B, and the second position C by the movement of the stone 14.
  • the main switching valve 58 has first, second, third, and fourth ports 59, 60, 61, and 62, and the first port 59 has a circuit 28 shown in FIG.
  • the second port 60 communicates with the auxiliary port 57 of the servo valve 53.
  • the third port 61 communicates with the tank 31 and the fourth port 62 communicates with the servo valve 53.
  • the first pressure receiving portion 63 communicates with the main port 55 of the servo valve 53, and the second pressure receiving portion 64 communicates with the circuit 28.
  • the circuit 28 communicates with the first chamber 49 of the cylinder section 52 and the pump port 54 of the servo valve 53. Then, the main switching valve 58 can be switched to the first position D by the pressure to the first pressure receiving portion 63 and to the second position E by the pressure to the second pressure receiving portion 64. I have.
  • the auxiliary chamber 51 of the cylinder section 52 is connected to the tank 31 or the second chamber 50 by a switching valve 70.
  • the switching valve 70 is of a pilot switching type in which the drain position F is set to the drain position F by spring force and the communication position G is set to the communication position G by the pressure oil of the pressure receiving portion 71. Is connected to the floating pilot circuit 41.
  • the switching valve 70 may be of a manual switching type with a mechanism.
  • the piston 14 is in the intermediate position, the servo valve 53 is in the neutral position A, and the first pressure receiving portion 63 and the second pressure receiving portion 63 are in the neutral position A.
  • the upper vehicle body 3 is provided with a hydraulic pilot valve 33 for a service valve.
  • pressurized oil is supplied to the pressure receiving portion 22a of the service valve 22 from the service valve pilot circuit 35, and the service valve 22 is actuated. It can be switched to the supply position where pressure oil is output from the gate 27.
  • a pressure switch 36 is connected to the service valve pilot circuit 35.
  • a selector switch 37 is provided on a lever 32 a of a hydraulic pilot valve 32 for a boom valve of the upper body 3, and a selector switch 37 is provided. By switching 7 to the rolling position f or crushing position g, a rolling signal or crushing signal is output.
  • the pressure signal from the pressure switch 36 and the rolling signal from the selector switch 37 are input to a timer relay 38.
  • the timer relay 38 energizes the solenoid 40 of the floating switching valve 39 a predetermined time after both signals are input.
  • the floating switching valve 39 is provided in a floating pilot circuit 41 connected to the pressure receiving portion 30 of the floating valve 29, and the floating switching valve 39 is spring-drained. And is switched to the supply position i when the solenoid 40 is energized.
  • a cylinder hole 43 formed of a large-diameter cylinder hole 41 and a small-diameter cylinder hole 42 is formed in the main body 13, and the cylinder hole 43 is formed in the cylinder hole 43.
  • Piston 14 is slidably fitted.
  • the piston 14 includes a large diameter part 45, a large diameter rod part 46, an intermediate diameter rod part 47, and a small diameter rod part 48.
  • the first chamber 49 with a small pressure receiving area and the second chamber 50 with a large pressure receiving area are provided on both sides of the large-diameter portion 45.
  • the pressure receiving area of the chamber for moving the piston 14 to the left is the pressure receiving area (A 1 -A 2) of the second chamber 50.
  • a 1 is the cross-sectional area of the large-diameter portion 45
  • a 2 is the cross-sectional area of the intermediate-diameter rod portion 47.
  • the switching valve 70 When pressurized oil is supplied to the pressure receiving portion 71 of the switching valve 70, the switching valve 70 becomes the communication position G and the second chamber 50 communicates with the auxiliary chamber 51, so the piston 14 is moved to the left.
  • the pressure receiving area of the chamber to be moved is the pressure receiving area of the second chamber 50 (Al-A2) + the pressure receiving area of the auxiliary chamber 51 (A2-A3).
  • a 3 is the cross-sectional area of the small diameter rod portion 8.
  • the switching valve 70 is set to the drain position F, the pressure receiving area of the chamber for moving the piston 14 to the left is reduced, and the reciprocating speed of the piston 4 is reduced. This is suitable when the vibration generator is used as a drive source of a breaker.
  • the switching valve 70 is set to the communication position G, the pressure receiving area of the chamber for moving the piston 14 to the left increases, and the moving force of the piston 14 increases. This is suitable when the present vibration generator is used as a drive source of a rolling machine.
  • a working tool insertion hole 72 is formed continuously with the cylinder hole 43. Insert the breaker chisel 15 or the pressing tool 16 into the shaft, and penetrate the pin 73 into the longitudinally long recess provided on the shaft of the breaker chisel 15 or the pressing tool 16 so that the breaker chisel 15 Alternatively, the pressing tool 16 is held so as to be able to reciprocate with a predetermined stroke.
  • a cap 74 is detachably inserted into the work tool insertion hole 73, and the cap 74 is retained by the pin 73.
  • Pump discharge pressure is supplied to 64. Since the pressure receiving area of the first pressure receiving portion 63 is larger than the pressure receiving area of the second pressure receiving portion 64, the main switching valve 58 is at the first position D, and therefore, the cylinder. Since the second chamber 50 of the section 52 communicates with the tank 31, the piston 14 moves to the right with the pressurized oil in the first chamber 49.
  • the main port 55 communicates with the tank port 56, and the connection between the pump port 54 and the auxiliary port 57 is cut off. Therefore, the pressure oil of the first pressure receiving portion 63 of the main switching valve 58 flows out to the tank 31, and the main switching valve 58 is moved to the second position E by the pressure of the second pressure receiving portion 64.
  • the first port 59 and the fourth port 62 communicate with each other, and the second port 59
  • the floating switch 80 is attached to the lever 32a of the hydraulic pilot valve 32 for the boom, and the first and second pressure receiving portions 19a of the boom valve 19 are provided.
  • 19b is provided with a shut-off valve 81 for detecting the higher pressure of the hydraulic oil acting on the pressure oil.
  • a hook 75 is attached to the work tool insertion hole 73 to prevent foreign matter from entering the cylinder hole 43. The hanging work can be performed by the hook 75 provided on the cap 74.
  • the pressure switch 36 outputs a pressure signal, but the pressure switch signal is not input from the selector switch 37, so that the timer relay 38 does not operate.
  • pressure oil is not supplied to the floating pilot circuit 41 until the floating switching valve 39 remains at the drain position h, so that the switching valve 70 shown in FIG. As F, the reciprocating speed of the piston 14 increases as described above.
  • the boom valve 19 has a floating position X
  • the boom hydraulic pilot valve 32 has a detent mechanism
  • the boom valve has a detent mechanism.
  • the hydraulic pressure is applied to the second pressure receiving portion 19 b of the boom valve 19 by performing the full stroke operation of the lever 32 a of the boom hydraulic pilot valve 32.
  • the boom valve 19 is supplied, the boom valve 19 is set to the floating position X and the lever 32a is maintained in the full stroke operation state, so that the boom cylinder 7 is set to the floating state. Rolling work can be performed.
  • the ON signal of the floating switch 80 and the pressure signal of the pressure switch 82 are input to the timer relay 38, and the timer relay 38 is connected to the floating switch 80. Only when the ON signal and the pressure signal from the selector switch 37 are input and the pressure signal from the pressure switch 82 is not input, the solenoid 4 of the floating switching valve 39 is provided only when the pressure signal of the pressure switch 82 is not input. Turn on 0.
  • the floating state is released by operating the boom hydraulic pilot valve 32 to expand and contract the boom cylinder 7. Therefore, the boom cylinder 7 can be extended and retracted to swing the boom 6 up and down, and when the extension and retraction of the boom cylinder 7 is stopped, the boom cylinder 7 automatically returns to the floating state. I do.
  • the floating switch 80 is omitted, and the timer relay 38 is replaced with the pressure switch signal from the selector switch 37 and the pressure switch 8.
  • the same effect as described above can be obtained by energizing the solenoid 40 of the floating switching valve 39 only when the pressure signal of No. 2 is not input.
  • Boom cylinder 7 floats unless set to 0 N
  • the second operation detecting means increases the pressure of the hydraulic oil acting on the first and second pressure receiving portions of the boom valve from the boom hydraulic pilot valve for controlling the boom valve.
  • a floating switch is further provided, and a 0 N signal from the floating switch and a rolling signal from the selector switch are input thereto, and a detection signal is output from the pressure switch. 6.
  • a boom valve for supplying pressure oil to the boom cylinder has a floating position, and a hydraulic pilot valve for a boom valve for controlling the boom valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Shovels (AREA)
  • Operation Control Of Excavators (AREA)
  • Crushing And Grinding (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

Cette invention concerne un compresseur-concasseur comprenant une flèche (6) montée sur un corps de véhicule (3) et capable de basculer verticalement, ainsi qu'un bras (8) monté sur la flèche et également capable de basculer verticalement. La flèche et le bras sont respectivement actionnés par un vérin de flèche (7) et par un vérin de bras (9). Un générateur de vibrations hydraulique (12) est monté sur le bras, tandis qu'un ciseau à fendre (15) et un élément compresseur (16) sont connectés de manière interchangeable au générateur de vibrations. Un commutateur permet en outre de faire passer le vérin de la flèche en un état de flottement lors du travail de compression.
PCT/JP1996/002958 1995-10-13 1996-10-11 Compresseur-concasseur WO1997013925A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96933627A EP0855468A4 (fr) 1995-10-13 1996-10-11 Compresseur-concasseur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7265320A JPH09111810A (ja) 1995-10-13 1995-10-13 転圧・ブレーカ作業機械
JP7/265320 1995-10-13

Publications (1)

Publication Number Publication Date
WO1997013925A1 true WO1997013925A1 (fr) 1997-04-17

Family

ID=17415561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1996/002958 WO1997013925A1 (fr) 1995-10-13 1996-10-11 Compresseur-concasseur

Country Status (4)

Country Link
EP (1) EP0855468A4 (fr)
JP (1) JPH09111810A (fr)
KR (1) KR970021536A (fr)
WO (1) WO1997013925A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337548A (en) * 1998-05-16 1999-11-24 Simon James Oliver A self-contained Pavement Crusher
CN109382159A (zh) * 2018-12-18 2019-02-26 广西华银铝业有限公司 一种新型的圆锥破碎机臂架帽

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4531303B2 (ja) * 2001-07-17 2010-08-25 古河機械金属株式会社 油圧ブレーカ
NL1023208C2 (nl) 2003-04-17 2004-11-09 Jozeph Maria Vermeulen Werkwijze en inrichting voor het lostrillen van stortgoed in schepen.
CN104005329B (zh) * 2014-06-10 2016-01-20 中铁工程机械研究设计院有限公司 一种振源恒压补偿系统
CN111764246B (zh) * 2020-07-08 2022-05-17 山东公路机械厂有限公司 一种破碎夯实装置及包含该装置的破碎夯实一体机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5169309U (fr) * 1974-11-11 1976-06-01
JPS6314653U (fr) * 1986-07-10 1988-01-30
JPH0762682A (ja) * 1993-08-30 1995-03-07 Komatsu Ltd 油圧ショベルにおける作業機取付装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5169309U (fr) * 1974-11-11 1976-06-01
JPS6314653U (fr) * 1986-07-10 1988-01-30
JPH0762682A (ja) * 1993-08-30 1995-03-07 Komatsu Ltd 油圧ショベルにおける作業機取付装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0855468A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337548A (en) * 1998-05-16 1999-11-24 Simon James Oliver A self-contained Pavement Crusher
GB2337548B (en) * 1998-05-16 2002-02-20 Simon James Oliver Self-contained pavement crusher
CN109382159A (zh) * 2018-12-18 2019-02-26 广西华银铝业有限公司 一种新型的圆锥破碎机臂架帽
CN109382159B (zh) * 2018-12-18 2024-03-12 广西华银铝业有限公司 一种新型的圆锥破碎机臂架帽

Also Published As

Publication number Publication date
KR970021536A (ko) 1997-05-28
JPH09111810A (ja) 1997-04-28
EP0855468A4 (fr) 2000-01-26
EP0855468A1 (fr) 1998-07-29

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