WO2008069297A1 - ホイールローダ - Google Patents
ホイールローダ Download PDFInfo
- Publication number
- WO2008069297A1 WO2008069297A1 PCT/JP2007/073638 JP2007073638W WO2008069297A1 WO 2008069297 A1 WO2008069297 A1 WO 2008069297A1 JP 2007073638 W JP2007073638 W JP 2007073638W WO 2008069297 A1 WO2008069297 A1 WO 2008069297A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel loader
- rear frame
- reinforcing
- reinforcing bracket
- plate
- Prior art date
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 71
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 210000003050 axon Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
- B62D21/186—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 for building site vehicles or multi-purpose tractors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
- B62D53/028—Having only coupling joints other than directional
-
- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
Definitions
- the present invention relates to a wheel loader, and more particularly to an improvement in a rear frame structure of a rear body.
- Patent Document 1 it is described that in order to increase the rigidity of a pole support, the support is formed in a box shape with a closed cross-sectional structure. As a result, it is possible to prevent vibrations of the support during traveling as well as improving forward visibility.
- Patent Document 1 Japanese Utility Model Publication No. 1 152881
- An object of the present invention is to provide a wheel loader capable of reliably increasing the rigidity of the rear frame with a simple structure. Means for solving the problem
- a wheel loader includes a rear frame having a plate-like left and right main beam, and an upper side position in the front-rear direction of the rear frame is located between the main beams.
- a reinforcing bracket is provided so as to be bridged over, and the middle position of the rear frame has a closed cross-sectional structure including the reinforcing bracket.
- the “middle position” is, for example, a position behind the driver's seat or the driver's seat where heavy objects such as an engine are mounted.
- the “closed section structure” means a closed structure formed by arranging the members constituting the rear frame within the maximum width of the reinforcing bracket so as to surround the axis parallel to the front-rear direction. .
- the closed frame structure of the rear frame is realized including the reinforcing beam installed between the upper portions of the main beam, the vertical load and the lateral load acting on the main beam are prevented.
- the wheel loader according to the present invention is characterized in that the reinforcing bracket is provided with an attachment portion for attaching a support column forming a driver's seat.
- the struts that form the driver's seat are attached to the reinforcing bracket, so that the load received from the canobies is reinforced. It can be reliably supported at the closed cross-section through the bracket, can prevent deformation of the rear frame, etc., and can fully satisfy standards such as ROPS.
- a reinforcing rib is provided in the middle of the rear frame along the vertical direction of the main beam, and the closed cross-sectional structure is configured including the reinforcing rib. It is characterized by recognizing.
- the reinforcing rib is provided along the vertical direction of the main beam, the rigidity can be improved more reliably by the closed cross-sectional structure.
- the rear frame is provided with a pedestal plate on which an engine is mounted via a mount member, and the reinforcing rib is mounted on the pedestal plate. Are brought into contact with each other.
- the reinforcing rib functions as a stopper of the mount member, the mount portion The force is used to position the material stably.
- a plate-like axle support is provided at a lower position in the middle of the rear frame so as to be bridged between the main beams, and includes the axle support.
- the closed cross-sectional structure is configured.
- the closed cross-section structure is configured by the axle support that is usually a thick plate, so that the rear axle can be stably supported, and the entire closed cross-section structure can be applied to the load received from the rear axle. It can be surely countered and driving performance can be improved.
- the wheel loader according to the present invention is characterized in that the reinforcing bracket is provided with a mounting piece for attaching a floor plate! /.
- the reinforcing bracket is provided with a support portion that supports the engine hood so as to be freely opened and closed.
- the support strength of the floor plate and the engine hood can be improved, and the operator on the floor plate can feel the lack of rigidity. Or giving a poor feeling when opening and closing the engine hood.
- FIG. 1 is a side view showing an entire wheel loader according to an embodiment of the present invention.
- FIG. 2 is an overall perspective view of a rear frame.
- FIG. 3 Front view of rear frame.
- FIG. 1 is a side view showing the entire wheel loader 1 according to the present embodiment.
- the wheel loader 1 of this embodiment has an operating mass of about 2.5 tons and is
- the front frame 3 is attached to the side so that it can be articulated.
- the rear frame 11 of the rear body 2 is provided with a rear wheel 4 and a cab 5 and accommodates a not-shown engine, a hydraulic pump driven by the engine, a transmission line, etc. Has been.
- a seat 39 constituting the cab 5 is provided above the engine (not shown), and a canobi 35 having two poles 34 is provided behind the seat 39.
- Front frame 3 is provided with front wheel 6, work machine 7 is further provided in front of front frame 3, and packet 8 is attached to the tip of work machine 7! /
- the work machine 7 includes a bucket boom 10 having a base end connected to the upper side of the front frame 3 and a tip connected to the bucket 8.
- the middle of the bucket boom 10 and the upper side of the front frame 3 are connected by a boom cylinder 14, and the boom cylinder 14 expands and contracts, the front side of the boom 10 moves up and down, and the packet 8 moves up and down.
- a tilt lever 15 is rotatably supported on the boom 10 via a bracket 13.
- the upper end side of the tilt lever 15 and the upper side of the front frame 3 are connected by a tilt cylinder 16, and the lower end side of the tilt lever 15 and the bucket 8 are connected by a tilt rod 17. Therefore, the bucket 8 is tilted by the expansion and contraction of the tilt cylinder 16.
- FIG. 2 is an overall perspective view of the rear frame 11
- FIG. 3 is a front view of the rear frame 11
- FIG. 4 is a plan view of the rear frame 11.
- the rear frame 11 connects the left and right main beams 21 that are plate-shaped, the bottom plate 22 and the top plate 23 that connect the front end sides of the main beam 21, and the rear end sides of the main beam 21.
- a boss 27 is provided between the front bottom plate 22 and the top plate 23, and an articulate pin 28 is passed through the boss 27.
- the bottom plate and the top plate of the front frame 3 (FIG. 1) are bolted to the lower end and the upper end of the articulate pin 28, respectively, and the front frame 3 rotates around the articulate pin 28. This rotation is This is done by articulating cylinder 9 (Fig. 1) connecting ram 3 and arm 29 of boss 27.
- a rear axle (not shown) is swingably mounted between the front and rear axle supports 25.
- a thick reinforcing plate 30 is installed along the front-rear direction at a position where the axle support 25 is joined, and is positioned between the front and rear axle supports 25.
- reinforcing ribs 31 extending upward from the upper surface of the reinforcing plate 30 in the vertical direction.
- the upper end of the reinforcing rib 31 extends to the substantially upper end edge of the main beam 21, and the protruding dimension of the reinforcing rib 31 inward is substantially the same as the protruding dimension of the reinforcing plate 30 inward.
- a base plate 33 for mounting the engine is provided on the inner surface of the main beam 21 so as to sandwich the reinforcing rib 31 therebetween, and the engine is mounted on the base plate 33 via an appropriate mounting member. Is done.
- the axle support 25 and the pedestal plate 33 for mounting the engine are arranged in the middle of the rear frame 11 and are reinforced on the inner surface of the main beam. Ribs 31 are provided.
- a reinforcing bracket 26 is installed corresponding to the upper end position of the reinforcing rib 31.
- a mounting seat 32 is provided on the outer surface of the main beam 21 at a position corresponding to the upper end position of the reinforcing rib 31 so as to protrude outward and horizontally. Both ends of the reinforcing bracket 26 are detachably fixed on the mounting seat 32 by bolts.
- Such a reinforcing bracket 26 will be installed just above the engine mounted in the rear frame 11, installed after the engine is installed, and when the engine is lowered for some reason. Also attached and detached.
- the reinforcing bracket 26 has a structure in which a planar outer peripheral portion 26B is provided on the outer edge of the substantially gate-shaped plate member 26A, and is attached to the mounting seat 3 2 by the mounting piece 26C fixed to the end portion of the plate member 26A. It is bolted. As shown in FIG. 2 in a partially broken view, reinforcing ribs 26D are provided on the upper surface of the mounting piece 26C, the lower surface of the outer peripheral portion 26B, and the back surface of the plate member 26A so as to be in contact with the respective surfaces. ing.
- Such a reinforcing bracket 26 is a member having high strength by itself.
- the outer peripheral portion 26B forms a design surface as the exterior of the vehicle body (Fig. 1). I do not support.
- the vicinity of the center of the rear frame 11 in the front-rear direction has a closed cross-sectional structure within the width of the reinforcing bracket 26, and the rigidity of the main beam 21 of the rear frame 11 is improved. ing. That is, in order from the bottom, the entire rear frame 11 is closed by the axle support 25, the reinforcing plate 30 and the reinforcing rib 31 provided on the main beam 21, and the reinforcing bracket 26, so that the center of the rear frame 11 is closed. The nearby rigidity is improved.
- the accelerator support 25 be provided at a position projected within the width of the reinforcing bracket 26 in the longitudinal direction of the vehicle body.
- the axle support 25 provided at the front and rear so as to connect the left and right of the main beam 21 is joined to the axle support 25! /, And a thick reinforcing plate 30 is erected along the front and rear direction.
- the main beam 21 is improved in rigidity between the front and rear axle supports 25. This is so that the mainframe can sufficiently withstand the force transmitted from the road surface via the axle.
- the position of the axle support 25 in the configuration of the closed structure described above is not limited to the position projected within the front and rear width of the reinforcing bracket 26 shown in FIG. It suffices to be within a range that takes into account the provided reinforcing plate 30.
- the force that causes the vertical load during the operation to act near the center of the rear frame 11 is excellent even for such a load. You can counter it.
- a pedestal plate 33 for mounting the engine is provided on the front and rear sides with the reinforcing rib 31 interposed therebetween, and the engine is mounted on the pedestal plate 33 via an appropriate mounting member. Even when a force engine is installed, the load can be reliably supported in the vicinity of the center of the rigid rear frame 11, and the main beam 21 can be reliably prevented from being squeezed.
- the front edge of the pedestal plate 33 on the rear side is close to the reinforcing rib 31, and the mount member placed on the pedestal plate 33 abuts on the reinforcing rib 31, so that the mount member is I'm getting more than necessary! Re, reinforcing ribs that make up the highly rigid part 3 1 also functions as a stopper for the mount member.
- the wheel loader 1 is provided with a canobi 35 having two poles 34.
- the lower end of the pole 34 is bolted to a mounting portion 26E provided on the reinforcing bracket 26.
- the canobie 35 has a two-leg structure, the load received during the fall acts locally on the rear frame 11 via the two poles 34.
- the pole 34 is attached to the reinforcing bracket 26, so that such a load must be reliably resisted near the center of the rigid frame 11 including the reinforcing bracket 26. Power S can be achieved, and ROPS can be fully satisfied.
- a cap can be mounted.
- the ROPS guard may have a ROPS guard.
- the ROPS guard is almost the same as the Canonobi structure.
- the rear end of the cap is attached to the mounting part of the reinforcing bracket 26, but the number of bolts and arrangement are different from those of the Canobi specification, but are bolted.
- the post on the back of the cab is placed on the reinforcement bracket 26. This strut portion acts as a pole 34 with a canobi structure, thereby exerting the effect of transmitting the load received during a fall to the rear frame 11.
- a mounting piece 37 for attaching a floor plate 36 (FIG. 1) is provided on the front surface of the reinforcing bracket 26 and the upper edge portion of the main beam 21. That is, a part of the floor plate 36 is supported by the reinforcing bracket 26. Therefore, a force that a relatively large load is applied when the seat 39 is mounted on the floor plate 36 or when the operator gets on the floor plate 36. A part of the load acting on the floor plate 36 is reinforced. Since it is well supported by the bracket 26, the operator can recognize the high rigidity of the frame and provide comfortable maneuverability.
- the fact that the seat 39 is arranged in front of the reinforcing bracket 26 provided in the middle position of the rear frame means that the engine is arranged below the seat 39. Therefore, if a structure that allows the seat 39 to be removed from the cab is adopted, it is possible to easily inspect the engine that cannot be performed from the engine hood 38 side.
- an engine hood 38 (FIG. 1) is attached to the rear side of the reinforcing bracket 26 via an appropriate hinge member (supporting portion) (not shown) so as to be opened and closed. Therefore, since the engine hood 38 is supported at a portion having high rigidity, the engine hood 38 can be opened and closed without a sense of incongruity, and a sense of security can be obtained without a poor feeling.
- the present invention can be suitably used for a wheel loader of a cap specification in addition to a wheel loader of a canobi specification.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/517,869 US8186474B2 (en) | 2006-12-08 | 2007-12-07 | Wheel loader |
JP2008548343A JP5009933B2 (ja) | 2006-12-08 | 2007-12-07 | ホイールローダ |
CN200780045185.6A CN101548049B (zh) | 2006-12-08 | 2007-12-07 | 轮式装载机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006332076 | 2006-12-08 | ||
JP2006-332076 | 2006-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008069297A1 true WO2008069297A1 (ja) | 2008-06-12 |
Family
ID=39492172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/073638 WO2008069297A1 (ja) | 2006-12-08 | 2007-12-07 | ホイールローダ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8186474B2 (ja) |
JP (1) | JP5009933B2 (ja) |
CN (1) | CN101548049B (ja) |
WO (1) | WO2008069297A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014185553A1 (ja) * | 2014-06-30 | 2014-11-20 | 株式会社小松製作所 | 作業車両 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008062868A1 (fr) * | 2006-11-24 | 2008-05-29 | Komatsu Ltd. | Chargeuse montée sur roues |
JP5137859B2 (ja) * | 2009-01-14 | 2013-02-06 | ヤンマー株式会社 | キャビン付き作業車輌 |
CN102817391A (zh) * | 2012-07-19 | 2012-12-12 | 浙江长兴前进机械铸造有限公司 | 一种轮式装载机箱体 |
CN103240694B (zh) * | 2013-05-13 | 2015-09-09 | 成都海凌达机械有限公司 | 用于限定装载机后车架大梁位置的装置 |
JP6189241B2 (ja) | 2014-03-26 | 2017-08-30 | 株式会社クボタ | 作業機 |
US9469342B2 (en) * | 2014-08-29 | 2016-10-18 | Deere & Company | Axle and transmission arrangement for an agricultural vehicle |
JP1522700S (ja) * | 2014-09-05 | 2015-04-27 | ||
JP1522701S (ja) * | 2014-09-05 | 2015-04-27 | ||
CA3060560A1 (en) | 2017-04-19 | 2018-10-25 | Clark Equipment Company | Loader frame |
CN112095707A (zh) * | 2020-08-05 | 2020-12-18 | 江苏徐工工程机械研究院有限公司 | 一种平地机及其后机架连接结构 |
Citations (3)
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JPH10114958A (ja) * | 1996-09-27 | 1998-05-06 | Jc Bamford Excavators Ltd | 荷捌き車両 |
JP2004276881A (ja) * | 2003-03-19 | 2004-10-07 | Yanmar Agricult Equip Co Ltd | 作業用走行車両の運転座席支持構造 |
JP2006168612A (ja) * | 2004-12-17 | 2006-06-29 | Shin Caterpillar Mitsubishi Ltd | 建設機械におけるメンテナンス構造 |
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US3604527A (en) * | 1969-12-10 | 1971-09-14 | Gilson Brothers Co | Tractor subassembly |
US4182456A (en) * | 1977-06-29 | 1980-01-08 | Massey-Ferguson Inc. | Material handling machine |
JPH01152881U (ja) | 1988-04-14 | 1989-10-20 | ||
US4968213A (en) * | 1989-04-10 | 1990-11-06 | Westendorf Mfg. Co., Inc. | Universal tractor loader mount |
US5535533A (en) | 1994-10-07 | 1996-07-16 | Caterpillar Inc. | Lift arms and linkage arrangement for a bucket |
JP2002061227A (ja) * | 2000-08-22 | 2002-02-28 | Komatsu Ltd | ブルドーザのフロアフレーム及びそのフロアフレームを備えたブルドーザ用rops運転室 |
US6799936B2 (en) * | 2001-10-19 | 2004-10-05 | Deere & Company | Tower and boom structure for loader bucket |
JP3775657B2 (ja) | 2001-12-13 | 2006-05-17 | 株式会社小松製作所 | 積込車両 |
CA2464908A1 (en) * | 2003-04-14 | 2004-10-14 | Macmoter S.P.A. | Crawler-tracked vehicle with variable track width |
US6957705B2 (en) * | 2003-08-26 | 2005-10-25 | Deere & Company | Loader linkage |
US20050167969A1 (en) * | 2004-01-29 | 2005-08-04 | Kazumasa Fukazawa | Structure of main frame for construction machines and method of manufacturing the same |
JP4928087B2 (ja) * | 2005-03-14 | 2012-05-09 | ヤンマー株式会社 | 作業車両のフレーム構造 |
US7401673B2 (en) * | 2005-09-15 | 2008-07-22 | Komatsu Ltd. | Frame structure for construction machine |
JP4422668B2 (ja) * | 2005-10-19 | 2010-02-24 | ヤンマー株式会社 | トラクターローダーバックホーのフレーム構造 |
US20070145780A1 (en) * | 2005-12-23 | 2007-06-28 | Caterpillar Inc. | Rotatable cab with multi-piece deck |
CA2659859C (en) * | 2006-08-08 | 2014-02-04 | Clark Equipment Company | Multiple configuration utility vehicle |
WO2008062868A1 (fr) * | 2006-11-24 | 2008-05-29 | Komatsu Ltd. | Chargeuse montée sur roues |
US7559250B2 (en) * | 2007-09-27 | 2009-07-14 | Caterpillar Inc. | Frame crack detection method |
US7530779B2 (en) * | 2007-09-28 | 2009-05-12 | Cnh America Llc | Cam-lock mechanism for attachment of implements to prime movers |
US7866700B2 (en) * | 2008-02-11 | 2011-01-11 | Caterpillar Inc | Machine frame |
US7757805B2 (en) * | 2008-06-24 | 2010-07-20 | Yanmar Co., Ltd. | Working vehicle |
-
2007
- 2007-12-07 JP JP2008548343A patent/JP5009933B2/ja not_active Expired - Fee Related
- 2007-12-07 CN CN200780045185.6A patent/CN101548049B/zh not_active Expired - Fee Related
- 2007-12-07 US US12/517,869 patent/US8186474B2/en not_active Expired - Fee Related
- 2007-12-07 WO PCT/JP2007/073638 patent/WO2008069297A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10114958A (ja) * | 1996-09-27 | 1998-05-06 | Jc Bamford Excavators Ltd | 荷捌き車両 |
JP2004276881A (ja) * | 2003-03-19 | 2004-10-07 | Yanmar Agricult Equip Co Ltd | 作業用走行車両の運転座席支持構造 |
JP2006168612A (ja) * | 2004-12-17 | 2006-06-29 | Shin Caterpillar Mitsubishi Ltd | 建設機械におけるメンテナンス構造 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014185553A1 (ja) * | 2014-06-30 | 2014-11-20 | 株式会社小松製作所 | 作業車両 |
US9476182B2 (en) | 2014-06-30 | 2016-10-25 | Komatsu Ltd. | Work vehicle |
Also Published As
Publication number | Publication date |
---|---|
US20100320807A1 (en) | 2010-12-23 |
CN101548049B (zh) | 2012-12-12 |
CN101548049A (zh) | 2009-09-30 |
US8186474B2 (en) | 2012-05-29 |
JPWO2008069297A1 (ja) | 2010-03-25 |
JP5009933B2 (ja) | 2012-08-29 |
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