JPH02132754U - - Google Patents

Info

Publication number
JPH02132754U
JPH02132754U JP4044489U JP4044489U JPH02132754U JP H02132754 U JPH02132754 U JP H02132754U JP 4044489 U JP4044489 U JP 4044489U JP 4044489 U JP4044489 U JP 4044489U JP H02132754 U JPH02132754 U JP H02132754U
Authority
JP
Japan
Prior art keywords
hydraulic circuit
switching valve
head
rod
blade lift
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
JP4044489U
Other languages
Japanese (ja)
Other versions
JPH0633011Y2 (en
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 filed Critical
Priority to JP1989040444U priority Critical patent/JPH0633011Y2/en
Publication of JPH02132754U publication Critical patent/JPH02132754U/ja
Application granted granted Critical
Publication of JPH0633011Y2 publication Critical patent/JPH0633011Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例の油圧回路図、第
２図は第１実施例の振動系図、第３図は本考案の
第２実施例の油圧回路図、第４図は第２実施例の
振動系図、第５図は本考案の衝撃緩衝作動状態図
、第６図は本考案の作業状態図、第７図は本考案
の走行時振動抑制装置作動状態図、第８図はモー
タグレーダの全体概略図、第９図は従来のモータ
グレーダにおける作業機の油圧回路図である。 １……車体、２……作業機、３……前輪、４…
…後輪、５……ブレードリフトシリンダ、６……
アキユムレータ、７−１，７−２……可変絞り、
８−１，８−２……グレード操作弁、９−１，９
−２……切換弁。 Fig. 1 is a hydraulic circuit diagram of the first embodiment of the invention, Fig. 2 is a vibration system diagram of the first embodiment, Fig. 3 is a hydraulic circuit diagram of the second embodiment of the invention, and Fig. 4 is a hydraulic circuit diagram of the second embodiment of the invention. The vibration system diagram of the embodiment, FIG. 5 is a diagram of the shock absorbing operation state of the present invention, FIG. 6 is a diagram of the working state of the present invention, FIG. 7 is a diagram of the operation state of the vibration suppressing device during driving of the present invention, and FIG. FIG. 9, which is an overall schematic diagram of a motor grader, is a hydraulic circuit diagram of a working machine in a conventional motor grader. 1...Vehicle body, 2...Work equipment, 3...Front wheel, 4...
...Rear wheel, 5...Blade lift cylinder, 6...
Accumulator, 7-1, 7-2...variable aperture,
8-1, 8-2...Grade operation valve, 9-1, 9
-2...Switching valve.

Claims (1)

【実用新案登録請求の範囲】 (1) 車体の前輪と後輪の間に作業機を１対のブ
レードリフトシリンダにより昇降可能に支持し、
車体にサスペンシヨンを具えないモータグレーダ
において、両方のブレードリフトシリンダのロツ
ド側油圧回路およびヘツド側油圧回路に接続した
ロツド側切換弁およびヘツド側切換弁と、これ等
の切換弁を介し各ブレードリフトシリンダのロツ
ド側油圧回路又はヘツド側油圧回路に連通する１
対のアキユムレータと、これ等のアキユムレータ
と切換弁の間の各油圧回路に配置された可変絞り
とからなることを特徴とするモータグレーダの振
動抑制兼衝撃緩衝装置。 (2) 車体の前輪と後輪の間に設けられた作業機
を１対のブレードリフトシリンダにより昇降可能
に支持し、車体にサスペンシヨンを具えないモー
タグレーダにおいて、両方のブレードリフトシリ
ンダのロツド側油圧回路およびヘツド側油圧回路
に接続したロツド側切換弁およびヘツド側切換弁
と、これ等の切換弁を介しそれぞれ各ブレードリ
フトシリンダのロツド側油圧回路およびヘツド側
油圧回路に連通する２対のアキユムレータと、こ
れ等のアキユムレータと切換弁の間の各油圧回路
に配置された可変絞りとからなることを特徴とす
るモータグレーダの振動抑制兼衝撃緩衝装置。[Claims for Utility Model Registration] (1) A working machine is supported between the front wheels and the rear wheels of the vehicle body so that it can be raised and lowered by a pair of blade lift cylinders,
In a motor grader that does not have a suspension on the vehicle body, the rod side switching valve and the head side switching valve are connected to the rod side hydraulic circuit and head side hydraulic circuit of both blade lift cylinders, and each blade lift 1 that communicates with the rod-side hydraulic circuit or head-side hydraulic circuit of the cylinder.
A vibration suppressing and shock absorbing device for a motor grader, comprising a pair of accumulators and a variable throttle disposed in each hydraulic circuit between the accumulators and the switching valve. (2) In a motor grader in which a working machine installed between the front wheels and rear wheels of the vehicle body is supported so that it can be raised and lowered by a pair of blade lift cylinders, and the vehicle body is not equipped with a suspension, the rod side of both blade lift cylinders is A rod-side switching valve and a head-side switching valve connected to the hydraulic circuit and the head-side hydraulic circuit, and two pairs of accumulators that communicate with the rod-side hydraulic circuit and the head-side hydraulic circuit of each blade lift cylinder, respectively, through these switching valves. A vibration suppressing and shock absorbing device for a motor grader, comprising: and a variable throttle disposed in each hydraulic circuit between the accumulator and the switching valve.
JP1989040444U 1989-04-07 1989-04-07 Vibration suppressor and shock absorber for motor grader Expired - Lifetime JPH0633011Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989040444U JPH0633011Y2 (en) 1989-04-07 1989-04-07 Vibration suppressor and shock absorber for motor grader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989040444U JPH0633011Y2 (en) 1989-04-07 1989-04-07 Vibration suppressor and shock absorber for motor grader

Publications (2)

Publication Number Publication Date
JPH02132754U true JPH02132754U (en) 1990-11-05
JPH0633011Y2 JPH0633011Y2 (en) 1994-08-31

Family

ID=31550240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989040444U Expired - Lifetime JPH0633011Y2 (en) 1989-04-07 1989-04-07 Vibration suppressor and shock absorber for motor grader

Country Status (1)

Country Link
JP (1) JPH0633011Y2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124709A (en) * 2011-12-14 2013-06-24 Hitachi Constr Mach Co Ltd Swinging-back prevention device of inertial body
WO2018147096A1 (en) * 2017-02-13 2018-08-16 株式会社小松製作所 Work vehicle and work vehicle control method
JP2019002233A (en) * 2017-06-19 2019-01-10 株式会社小松製作所 Motor grader
JP2020152471A (en) * 2019-03-18 2020-09-24 日本製鉄株式会社 Carrying facility for long material
JP2021159058A (en) * 2020-04-03 2021-10-11 株式会社ササキコーポレーション Working machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316085A1 (en) * 1983-05-03 1984-11-08 Hanomag GmbH, 3000 Hannover Pneumatic-tyred construction machine, such as a wheeled loader, wheeled grader or the like
JPS60113709A (en) * 1983-11-24 1985-06-20 Hitachi Constr Mach Co Ltd Hydraulic apparatus for suspension mechanism
JPS63265023A (en) * 1987-04-20 1988-11-01 Kobe Steel Ltd Vibration suppressor for vehicular construction machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316085A1 (en) * 1983-05-03 1984-11-08 Hanomag GmbH, 3000 Hannover Pneumatic-tyred construction machine, such as a wheeled loader, wheeled grader or the like
JPS60113709A (en) * 1983-11-24 1985-06-20 Hitachi Constr Mach Co Ltd Hydraulic apparatus for suspension mechanism
JPS63265023A (en) * 1987-04-20 1988-11-01 Kobe Steel Ltd Vibration suppressor for vehicular construction machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124709A (en) * 2011-12-14 2013-06-24 Hitachi Constr Mach Co Ltd Swinging-back prevention device of inertial body
WO2018147096A1 (en) * 2017-02-13 2018-08-16 株式会社小松製作所 Work vehicle and work vehicle control method
JP2018131733A (en) * 2017-02-13 2018-08-23 株式会社小松製作所 Working vehicle and control method of working vehicle
JP2019002233A (en) * 2017-06-19 2019-01-10 株式会社小松製作所 Motor grader
JP2020152471A (en) * 2019-03-18 2020-09-24 日本製鉄株式会社 Carrying facility for long material
JP2021159058A (en) * 2020-04-03 2021-10-11 株式会社ササキコーポレーション Working machine

Also Published As

Publication number Publication date
JPH0633011Y2 (en) 1994-08-31

Similar Documents

Publication Publication Date Title
JPH02132754U (en)
JPH02132753U (en)
JPS62155013U (en)
JPS59146262U (en) Brake hydraulic adjustment device for center-folding shovel loader
JPH0351251U (en)
JPH0128131Y2 (en)
JPS59102653U (en) Blade lifting device for work vehicles
JPS6084407U (en) Suspension lock device for wheeled swing work vehicles
JPH02148009U (en)
JPS62145880U (en)
JPS6312205Y2 (en)
JPS6447854U (en)
JPS6434301U (en)
JPH0313355U (en)
JPS6091568U (en) Rear wheel steering device
JPS6191433U (en)
JPS63137103U (en)
JPH0270045U (en)
JPH035768U (en)
JPS60149907U (en) Work equipment attachment device
JPH0473054U (en)
JPS6442365U (en)
JPH02123453U (en)
JPS588607U (en) work vehicle
JPH0471417U (en)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term