JP2009274806A - Handling device for hydraulic hose of suspended grapple - Google Patents

Handling device for hydraulic hose of suspended grapple Download PDF

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Publication number
JP2009274806A
JP2009274806A JP2008127093A JP2008127093A JP2009274806A JP 2009274806 A JP2009274806 A JP 2009274806A JP 2008127093 A JP2008127093 A JP 2008127093A JP 2008127093 A JP2008127093 A JP 2008127093A JP 2009274806 A JP2009274806 A JP 2009274806A
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Japan
Prior art keywords
hydraulic
grapple
hose
frame
arm
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JP2008127093A
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Japanese (ja)
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JP4679605B2 (en
Inventor
Shigeya Tada
茂也 多田
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Hitachi Constr Mach Co Ltd
日立建機株式会社
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Application filed by Hitachi Constr Mach Co Ltd, 日立建機株式会社 filed Critical Hitachi Constr Mach Co Ltd
Priority to JP2008127093A priority Critical patent/JP4679605B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/12Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/04Tine grabs

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handling device for a hydraulic hose of a suspended grapple capable of preventing damages of the hydraulic hose connected to a hydraulic actuator of the grapple in works for treating waste, chips, etc. <P>SOLUTION: The handling device is equipped with a first hose guide 24 and a second hose guide 25, as guides for the hydraulic hoses 27-31 which supply hydraulic oil to the hydraulic actuator provided for the grapple. The first hose guide 24 is installed near a lateral pin 12 mounting part on an upper side surface of a bracket for suspension. The second hose guide 25 is installed on a back surface side of a frame 14 of the grapple 10 or on a back surface side of the bracket 11 for suspension, and near a vertical pin 13 mounting part. As the hose guides 24, 25 are provided near the pins 12, 13, they can follow rotation movements of the pins 12, 13 with small deformation of the hydraulic hoses 27-31. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hydraulic hose handling device in a grapple, which is attached to an arm of a work machine and used for gripping, loading, unloading and stacking various wastes, various chips, wood, and the like.

  As described in Patent Document 1, for example, a grapple for loading, unloading, and stacking industrial waste on a truck is suspended at the tip of a working arm instead of a bucket of a hydraulic excavator. The bracket is mounted so as to be swingable left and right and back and forth via a bracket, a lateral pin (a pin facing left and right), and a vertical pin (a pin facing front and rear). Such a grapple includes an upper frame that is attached to a working arm of a work machine, a cylindrical lower frame that is pivotably attached to a lower portion of the upper frame via a turning device, and a circumferential direction outside the lower frame. A plurality of nail attachment brackets provided at intervals, a plurality of claws attached to each bracket so as to be able to open and close in and out around the pivot shaft by fitting a root portion to each bracket. And a hydraulic cylinder for opening and closing.

  In such a hanging grapple, the hydraulic circuit between the tip of the hydraulic pipe made of a steel pipe attached to the working arm and the port of the swivel device port and the claw opening / closing hydraulic cylinder provided in the upper frame Is usually constituted by a hydraulic hose which is mounted so as to be loosened between the horizontal pin and the vertical pin.

JP 2003-146575 A

  In the grapple hydraulic hose handling structure described in Patent Document 1, in order to allow the grapple to rotate with respect to the arm, the hydraulic hose is normally loosened around the suspension bracket and bulged outward. It is arranged with. For this reason, when performing a waste disposal etc., a reinforcing bar, a steel frame, etc. were easily caught in a hydraulic hose, and there was a possibility of damaging a hydraulic hose. Also, among the hydraulic hoses, the hydraulic hose located in front of the suspension bracket cannot be seen by the operator in the operator's cab located on the back side of the suspension bracket, so rebars and steel frames are caught on the hydraulic hose. However, there was a problem that the hydraulic arm was easily damaged by moving the working arm.

  In view of the above-described problems, the present invention provides a suspension grapple hydraulic hose handling device capable of preventing damage to the hydraulic hose connected to the grapple hydraulic actuator in processing operations such as waste and chips. For the purpose.

According to a first aspect of the present invention, there is provided a hydraulic hose handling device for a hanging grapple, wherein a grapple hanging bracket is attached to a distal end of a working arm so as to be swingable in a front-rear direction around a horizontal pin provided horizontally. In a work machine in which a grapple frame is mounted so that it can swing in the left-right direction around a vertical pin provided horizontally in the front-rear direction at the bottom of the lowering bracket,
A first hose guide that is provided in the vicinity of the lateral pin attachment portion on both side surfaces of the upper part of the suspension bracket and that passes a hydraulic hose that supplies hydraulic oil to a hydraulic actuator provided in the grapple;
A second hose guide provided on the back side of the frame of the grapple or on the back side of the suspension bracket and in the vicinity of the vertical pin mounting portion and passing the hydraulic hose through the first hose guide. It is characterized by that.

The hanging grapple hydraulic hose routing device according to claim 2 is the hanging grapple hydraulic hose routing device according to claim 1,
The first hose guide has an inclined structure in which the front side is inclined upward.

  In the invention of claim 1, since the first hose guide is provided in the vicinity of the lateral pin on the side surface of the suspension bracket, the degree to which the hydraulic hose bulges outward from the work arm or suspension bracket is reduced. Even so, when the suspension bracket rotates with respect to the working arm, the suspension bracket can be easily followed by the small movement and deformation of the hydraulic hose.

  Similarly, since the second hose guide is provided in the vicinity of the vertical pin, the suspension bracket can be used for work even if the degree to which the hydraulic hose bulges outward from the suspension bracket or grapple frame is reduced. When rotating with respect to the arm, it is possible to easily follow the rotation of the suspension bracket and the grapple frame with a small movement and deformation of the hydraulic hose.

  For this reason, the degree of outward bulging of the hydraulic hose between the work arm and the grapple is reduced as a whole, and the frequency of the hydraulic hose being caught by a reinforcing bar or steel frame is reduced in the waste treatment work. Can prevent damage.

  In addition, the first hose guide is provided on the side of the suspension bracket, and the second hose guide is provided on the rear side of the suspension bracket and grapple frame. This makes it easier for the operator to visually check, and it is easier to check the state where the hydraulic hose is caught by reinforcing bars, steel frames, etc. It becomes possible.

  According to the invention of claim 2, since the first hose guide is provided obliquely so that the front side is on the upper side, an articulated arm is used as the working arm, and the lower part of the most advanced arm is placed on the working machine main body side. Even when the front end of the arm is pulled upside down, the first hose guide can guide the hydraulic hose smoothly and smoothly without excessive bending of the hydraulic hose.

  FIG. 1 is a side view showing an example of a working machine provided with a grapple, that is, a waste disposal machine. In this working machine, the upper swing body 3 is installed on the lower traveling body 1 via the swing device 2, the hydraulic power unit 4 and the cab 5 are installed on the upper swing body 3, and the work arm 6 is attached. The working arm 6 in this example has a long boom 7 and a long arm 8. The boom 7 is attached to the upper swing body 3 by a boom cylinder 7a so as to be raised and lowered, and the arm 8 is rotated by the arm cylinder 8a. Mounted movably. The grapple 10 is suspended from the tip of the arm 8 via a suspension bracket 11.

  2, 3, and 4 are a perspective view, a side view, and a rear view, respectively, showing an embodiment of the hydraulic hose routing device of the grapple 10. The upper part of the hanging bracket 11 has a bifurcated structure. The bifurcated portion sandwiches the tip of the arm 8 and is connected by a horizontal pin 12 provided horizontally in the left-right direction. The upper frame 14 of the grapple 10 is attached to the lower portion of the hanging bracket 11 by a vertical pin 13 provided horizontally in the front-rear direction so as to be able to swing left and right. A lower frame 16 is attached to the upper frame 14 via a turning device 15 having a turning motor (not shown). In some cases, the lower frame 16 and the upper frame 14 may be integrated without having the swivel device 15.

  The lower frame 16 has a cylindrical shape, and a plurality of brackets 17 having two parallel plates are provided around the lower frame 16 at equal intervals in the circumferential direction. Each bracket 17 is covered with a root portion of a plurality of claws 19 each having a hollow structure with a quadrangular cross section, and is attached to be pivotable by a pivot shaft 20. Each claw 19 includes a hydraulic cylinder 21 for opening and closing the claw. The hydraulic cylinder 21 is attached with one end connected to the bracket 17 by a pin 22 and the other end connected to a midway portion of the claw 19 by a pin 23. These hydraulic cylinders 21 may connect the tube side to the middle part of the claw 19 and connect the piston rod to the bracket 17. The hydraulic cylinder 21 may be provided outside the claw 19. Although this embodiment shows an example in which five brackets 17 and five claws 19 are provided, the present invention can be applied to a grapple provided with two or more of these brackets 17 and claws 19.

  Next, a hydraulic hose handling device will be described. Reference numeral 24 denotes a first hose guide provided in the vicinity of the lateral pin 12 on both upper side surfaces of the hanging bracket 11. The first hose guide 24 is formed by welding a bar (including a pipe) having a circular cross-sectional shape into a U-shape and fixing it with a bolt 24a as shown. Reference numeral 25 denotes a second hose guide provided on the back surface of the upper frame 14 of the grapple 10, that is, on the cab 5 side. This second hose guide 25 also has a rod (including a pipe) having a circular cross-sectional shape bent into a U shape and fixed to the back surface of the upper frame 14 by bolts 25a as shown.

  In FIG. 3, reference numeral 26 denotes a hydraulic pipe group made of steel pipes attached to the upper surface of the arm 8. The hydraulic pipe group 26 includes a hydraulic pipe for a swing motor and a drain of the swing device 15, and a hydraulic cylinder for opening and closing the claw. Includes hydraulic piping for 21. 2 to 4, reference numerals 27 to 31 denote hydraulic hoses connected to the corresponding pipes in the hydraulic pipe group 26 by the connecting device 33, and these hydraulic hoses 27 to 31 correspond to the corresponding hydraulic pipes, respectively. Have a diameter. These hydraulic hoses 27 to 31 are composed of one side (right side when viewed from the front of the working machine) of one side, that is, the large-diameter hydraulic hose 27 and the two smaller hydraulic hoses 28 and 29. The other large diameter hydraulic hose 30 and the smaller diameter hydraulic hose 31 are passed through the other first hose guide 24 through the hose guide 24. Further, these hydraulic hoses 27 to 31 are passed through the second hose guide 25 in common, the hydraulic hoses 27 and 30 are connected to the ports of the center joint 32 (see FIGS. 3 and 4), and the hydraulic hoses 28 and 29 are connected. The hydraulic hose 31 is connected to the drain port by connecting to the port of the turning motor of the turning device 15.

  In this hydraulic hose handling device, since the first hose guide 24 is provided in the vicinity of the lateral pin 12 on the side surface of the suspension bracket 11, the hydraulic hoses 27 to 31 are connected to the work arm 6 and the suspension bracket 11. Even if the degree of outward bulging is reduced, when the suspension bracket 11 is rotated with respect to the work arm 6, the suspension of the suspension bracket 11 is caused by small movements and deformations of the hydraulic hoses 27 to 31. It can follow the movement easily.

  Similarly, since the second hose guide 25 is provided in the vicinity of the vertical pin 13, the degree to which the hydraulic hoses 27 to 31 bulge outward from the suspension bracket 11 and the upper frame 14 of the grapple 10 is reduced. However, when the suspension bracket 11 rotates with respect to the work arm 6, the movement of the suspension bracket 11 can be easily followed by small movements and deformations of the hydraulic hoses 27 to 31.

  For this reason, the outward bulging degree of the hydraulic hoses 27 to 31 between the working arm 6 and the grapple 10 is reduced as a whole, and the hydraulic hoses 27 to 31 are used as a reinforcing bar, a steel frame or the like in the waste disposal work. The frequency of catching is reduced, and damage to the hydraulic hoses 27 to 31 can be prevented.

  Further, since the first hose guide 24 is provided on the side surface of the hanging bracket 11 and the second hose guide 25 is provided on the back side of the upper frame 14 of the hanging bracket 11 and the grapple 10, these hose guides are provided. The hydraulic hoses 27 to 31 that pass through 24 and 25 are easily visible from the operator in the cab 5 and it is easy to check the state where the hydraulic hoses 27 to 31 are caught on the reinforcing bars and steel frames. Therefore, it is possible to better avoid damage to the hydraulic hose.

  Further, since the first hose guide 24 is provided obliquely so that the front side (upper revolving unit 3 side) is up, an articulated arm is used as the working arm 6, and the two-dot chain line in FIG. As shown in FIG. 5, even when the lower end of the most advanced arm 8 is pulled toward the work machine main body (upper swing body 3) and the tip of the arm 8 is turned upside down, the first hose guide 24 is connected to the hydraulic hose 27. The hydraulic hoses 27 to 31 can be smoothly guided without excessively bending the .about.31, that is, without generating an excessive bending stress on the hydraulic hose 27.

  7 and 8 show another embodiment of the present invention, in which a second hose guide 25 is provided in the vicinity of the vertical pin 13 on the back surface of the hanging bracket 11. Also in this embodiment, the same effect as the above-described embodiment can be obtained.

  The present invention may be configured such that the first hose guide 24 is provided only on one of the left and right sides of the hanging bracket 11. However, as in the above-described embodiment, the first hose guides 24 are provided on both sides of the suspension bracket 11, and the hydraulic hoses 27 to 31 are separately arranged on the first hose guides 24, so that each first hose guide 24 is divided. There are advantages that the size of the hose guide 24 can be reduced and interference of the hydraulic hoses 27 to 31 can be prevented.

It is a side view which shows an example of the working machine which applies the hydraulic hose management apparatus of the grapple of this invention. It is a perspective view showing one embodiment of a grapple hydraulic hose handling device of the present invention. It is a side view of the grapple of FIG. It is a rear view of the grapple of FIG. It is a partially-omission perspective view of the grapple of this embodiment. It is a side view which shows the state which supported the grapple of this embodiment by turning up and down the arm front-end | tip. It is a side view which shows other embodiment of the handling apparatus of the hydraulic hose of the grapple of this invention. FIG. 8 is a rear view of FIG. 7.

Explanation of symbols

1: Lower traveling body, 2: Turning device, 3: Upper turning body, 4: Hydraulic power unit, 5: Driver's cab, 6: Working arm, 7: Boom, 7a: Boom cylinder, 8: Arm, 8a: Arm cylinder 10: grapple, 11: bracket for suspension, 12: horizontal pin, 13: vertical pin, 14: upper frame, 15: swivel device, 16: lower frame, 17: bracket, 19: claw, 20: pivot shaft , 21: hydraulic cylinder, 22, 23: pin, 24: first hose guide, 25: second hose guide, 26: hydraulic piping group on the arm, 27-31: hydraulic hose, 32: center joint, 33 : Connection device

Claims (2)

  1. A grapple suspension bracket is mounted at the tip of the work arm so that it can swing in the front-rear direction around a horizontal pin provided horizontally in the left-right direction, and the vertical pin provided horizontally in the front-rear direction is centered at the bottom of the suspension bracket. In a work machine where a grapple frame is mounted so that it can swing in the left-right direction
    A first hose guide that is provided in the vicinity of the lateral pin attachment portion on both side surfaces of the upper part of the suspension bracket and that passes a hydraulic hose that supplies hydraulic oil to a hydraulic actuator provided in the grapple;
    A second hose guide provided on the back side of the frame of the grapple or on the back side of the suspension bracket and in the vicinity of the vertical pin mounting portion and passing the hydraulic hose through the first hose guide. A hydraulic hose handling device for a hanging grapple characterized by the above.
  2. In the handling device of the hydraulic hose of the hanging grapple according to claim 1,
    The first hose guide has a slanted structure in which the front side is inclined upward.
JP2008127093A 2008-05-14 2008-05-14 Hydraulic hose routing device for hanging grapple Active JP4679605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008127093A JP4679605B2 (en) 2008-05-14 2008-05-14 Hydraulic hose routing device for hanging grapple

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008127093A JP4679605B2 (en) 2008-05-14 2008-05-14 Hydraulic hose routing device for hanging grapple
CN2009101299471A CN101581105B (en) 2008-05-14 2009-04-10 Trimming device for hydraulic tube of suspended grab bucket
KR1020090041611A KR20090118866A (en) 2008-05-14 2009-05-13 Handling device of hydraulic hose of hanging type grapple

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JP2009274806A true JP2009274806A (en) 2009-11-26
JP4679605B2 JP4679605B2 (en) 2011-04-27

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KR (1) KR20090118866A (en)
CN (1) CN101581105B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2497865A2 (en) 2011-03-09 2012-09-12 Hitachi Construction Machinery Co., Ltd. Piping guard for an operating machine
CN103766191A (en) * 2014-01-03 2014-05-07 北京林业大学 Connecting joint of multifunctional crawler-type forest cutting and planting machine
EP2824059A1 (en) * 2013-07-10 2015-01-14 Tigercat Industries Inc. Hydraulic assembly and logging equipment using same

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SE535793C2 (en) * 2010-04-13 2012-12-18 Indexator Group Ab Device for controlling the hoses and / or cables
CN102452608B (en) * 2010-10-28 2014-05-14 日立建机(中国)有限公司 Hydraulic shunting structure in accessory main body
CN102912820A (en) * 2012-11-14 2013-02-06 广西玉柴重工有限公司 Pendulum feeding device of hydraulic excavator
SE1300134A1 (en) * 2013-02-20 2014-08-19 Cranab Ab Jib carrying a rotator
CN105178373B (en) * 2015-07-26 2017-04-05 苏昭强 A kind of adjustable grab bucket controlled based on parallel institution
CN106275286B (en) * 2016-08-30 2019-07-05 中国海洋大学 Two dimension of underwater glider is comprehensive to be laid recyclable device and lays recovery method
CN108086372A (en) * 2017-12-28 2018-05-29 山推工程机械股份有限公司 A kind of lumbering type bull-dozer
CN110127515A (en) * 2019-05-22 2019-08-16 南京禄口起重机械有限公司 A kind of crane orange-peel bucket
CN111155576A (en) * 2020-01-02 2020-05-15 四川大学 Grab bucket of excavator and excavator

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JPH0581179U (en) * 1992-04-03 1993-11-02 コベルコ建機エンジニアリング株式会社 Grapple
JP2000064334A (en) * 1998-08-20 2000-02-29 Hitachi Constr Mach Co Ltd Oil pressure piping setting structure of construction machine
JP2001329559A (en) * 2000-05-25 2001-11-30 Yanmar Diesel Engine Co Ltd Work machine piping structure of excavation work vehicle

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JP3142051B2 (en) * 1995-04-14 2001-03-07 株式会社小松製作所 Multi-stage telescopic arm of construction machine for deep foundation excavation
CN2755185Y (en) * 2003-10-10 2006-02-01 山东山工机械有限公司 Bucket fork assembling apparatus of loader
CN200981787Y (en) * 2006-08-31 2007-11-28 天津中远船务工程有限公司 Single-rope bivalve hydraulic remote control grab bucket

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Publication number Priority date Publication date Assignee Title
JPH0581179U (en) * 1992-04-03 1993-11-02 コベルコ建機エンジニアリング株式会社 Grapple
JP2000064334A (en) * 1998-08-20 2000-02-29 Hitachi Constr Mach Co Ltd Oil pressure piping setting structure of construction machine
JP2001329559A (en) * 2000-05-25 2001-11-30 Yanmar Diesel Engine Co Ltd Work machine piping structure of excavation work vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2497865A2 (en) 2011-03-09 2012-09-12 Hitachi Construction Machinery Co., Ltd. Piping guard for an operating machine
EP2824059A1 (en) * 2013-07-10 2015-01-14 Tigercat Industries Inc. Hydraulic assembly and logging equipment using same
CN103766191A (en) * 2014-01-03 2014-05-07 北京林业大学 Connecting joint of multifunctional crawler-type forest cutting and planting machine

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CN101581105B (en) 2013-01-23
CN101581105A (en) 2009-11-18
KR20090118866A (en) 2009-11-18
JP4679605B2 (en) 2011-04-27

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