JPH0484455U - - Google Patents
Info
- Publication number
- JPH0484455U JPH0484455U JP12715790U JP12715790U JPH0484455U JP H0484455 U JPH0484455 U JP H0484455U JP 12715790 U JP12715790 U JP 12715790U JP 12715790 U JP12715790 U JP 12715790U JP H0484455 U JPH0484455 U JP H0484455U
- Authority
- JP
- Japan
- Prior art keywords
- cab
- driver
- support device
- work machine
- hydraulic pump
- 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.)
- Pending
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図および第２図は本考案の第１の実施例を
示し、第１図は油圧シヨベルの要部を示す説明図
、第２図は油圧回路図、第３図は第２の実施例を
示す油圧回路図、第４図は第３の実施例を示す油
圧シヨベルの要部説明図、第５図は従来技術を示
す油圧シヨベルの全体図である。
１……下部走行体、３……上部旋回体（作業機
本体）、４……本体フレーム、５……機械室、８
……作業装置、２０，５０……運転室、２０Ａ…
…床板、２１……シリンダ装置（支持装置）、２
２，５６……チユーブ、２３Ａ，２３Ｂ，５７Ａ
，５７Ｂ……油室、２４，５８……ピストン、２
５，６０……ロツド、２６，５３……スプリング
、２７……油圧ポンプ、２８……供給側管路、３
０……排出側管路、３１……タンク、３２……リ
リーフ弁（排出手段）、３３……絞り弁、３４，
４２……切換弁（補充手段）、３５……アキユム
レータ、４１……レベルスイツチ（油量検出器）
、５１……支持ブラケツト、５２，５９……ピン
、５４……油圧シリンダ。
Figures 1 and 2 show a first embodiment of the present invention, Figure 1 is an explanatory diagram showing the main parts of a hydraulic excavator, Figure 2 is a hydraulic circuit diagram, and Figure 3 is a second embodiment. FIG. 4 is an explanatory view of the main parts of a hydraulic shovel showing a third embodiment, and FIG. 5 is an overall view of a hydraulic shovel showing the prior art. 1... Lower traveling body, 3... Upper revolving body (work equipment main body), 4... Main body frame, 5... Machine room, 8
...Work equipment, 20,50...Driver's cab, 20A...
... Floor plate, 21 ... Cylinder device (support device), 2
2,56...Tube, 23A, 23B, 57A
, 57B... Oil chamber, 24, 58... Piston, 2
5, 60... Rod, 26, 53... Spring, 27... Hydraulic pump, 28... Supply side pipe, 3
0... Discharge side pipe, 31... Tank, 32... Relief valve (discharge means), 33... Throttle valve, 34,
42...Switching valve (refilling means), 35...Accumulator, 41...Level switch (oil amount detector)
, 51... Support bracket, 52, 59... Pin, 54... Hydraulic cylinder.
Claims (1)
え、該機械室内に原動機によつて駆動される油圧
ポンプが設けられた作業機本体と、該作業機本体
の前部に俯仰動可能に設けられ、前記油圧ポンプ
からの圧油によつて作動される作業装置とからな
る運転室付き作業機において、前記作業機本体の
本体フレームと運転室との間に設けられ、前記油
圧ポンプからの圧油を収容することにより、該圧
油を介して前記運転室を可動に支持する支持装置
と、該支持装置内に収容された圧油の圧力が所定
の上限値を越えたときに、この圧油を該支持装置
からタンクに排出させる排出手段と、前記油圧ポ
ンプからの圧油を前記支持装置内に補充させる補
充手段とから構成したことを特徴とする運転室付
き作業機の振動減衰装置、 (2) 前記排出手段はリリーフ弁によつて構成し
てなる実用新案登録請求の範囲(1)項記載の運転
室付き作業機の振動減衰装置。 (3) 前記支持装置とタンクとを接続する排出側
管路の途中には絞り弁を設けてなる実用新案登録
請求の範囲(1)項または(2)項記載の運転室付き作
業機の振動減衰装置。 (4) 前記油圧ポンプと支持装置とを接続する供
給側管路の途中には、前記補充手段と支持装置と
の間に位置してアキユムレータを設けてなる実用
新案登録請求の範囲(1)項、(2)項または(3)項記
載の運転室付き作業機の振動減衰装置。 (5) 前記補充手段は支持装置内に収容された圧
油の圧力が所定の下限値以下になると開弁し、こ
の下限値を越えると閉弁する切換弁によつて構成
してなる実用新案登録請求の範囲(1)項、(2)項、
(3)項または(4)項記載の運転室付き作業機の振動
減衰装置。 (6) 前記支持装置には内部に収容された圧油量
を検出する油量検出器を設け、前記補充手段は該
油量検出器で検出した圧油量が所定量以下になる
と開弁し、この所定量を越えると閉弁する切換弁
によつて構成してなる実用新案登録請求の範囲(1
)項、(2)項、(3)項または(4)項記載の運転室付き
作業機の振動減衰装置。 (7) 前記支持装置は、運転室を回動可能に支持
する支持ブラケツトと、該支持ブラケツトと共に
前記運転室を支持する油圧シリンダとによつて構
成し、該油圧シリンダの油室内に前記油圧ポンプ
からの圧油を収容させてなる実用新案登録請求の
範囲(1)項、(2)項、(3)項、(4)項、(5)項または(
6)項記載の運転室付き作業機の振動減衰装置。[Scope of Claim for Utility Model Registration] (1) A work machine main body, which has an operator's cab and a machine room on the main body frame, and a hydraulic pump driven by a prime mover in the machine room, and the work machine main body. In a work machine with a driver's cab, which is provided in the front part so as to be tiltable up and down and is operated by pressure oil from the hydraulic pump, the work machine is provided between the main body frame of the work machine main body and the driver's cab. a support device that movably supports the driver's cab by accommodating pressure oil from the hydraulic pump, and the pressure of the pressure oil accommodated in the support device is set to a predetermined upper limit value. an operator's cab comprising: a discharge means for discharging the pressure oil from the support device into a tank when the pressure exceeds the pressure; and a replenishment means for replenishing the pressure oil from the hydraulic pump into the support device. (2) The vibration damping device for a working machine with a driver's cab according to claim (1), wherein the discharge means is a relief valve. (3) Vibration of a work machine with a driver's cab as set forth in claim (1) or (2) of the utility model registration claim, which is provided with a throttle valve in the middle of the discharge side pipe connecting the support device and the tank. damping device. (4) Utility model registration claim (1), wherein an accumulator is provided between the replenishing means and the support device in the middle of the supply side pipe connecting the hydraulic pump and the support device. , a vibration damping device for a work machine with a driver's cab as described in paragraph (2) or (3). (5) A utility model in which the replenishment means is constituted by a switching valve that opens when the pressure of the pressure oil stored in the support device falls below a predetermined lower limit value and closes when the lower limit value is exceeded. Scope of registration claims (1), (2),
Vibration damping device for work equipment with a driver's cab as described in paragraph (3) or (4). (6) The support device is provided with an oil amount detector that detects the amount of pressurized oil stored therein, and the replenishing means opens when the amount of pressurized oil detected by the oil amount detector becomes less than a predetermined amount. , the scope of the utility model registration claim (1) consisting of a switching valve that closes when the predetermined amount is exceeded.
), (2), (3), or (4) of a vibration damping device for a work machine with a cab. (7) The support device includes a support bracket that rotatably supports the driver's cab, and a hydraulic cylinder that supports the driver's cab together with the support bracket, and the hydraulic pump is installed in the oil chamber of the hydraulic cylinder. Utility model registration claims (1), (2), (3), (4), (5) or (
Vibration damping device for work equipment with operator's cab as described in 6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12715790U JPH0484455U (en) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12715790U JPH0484455U (en) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484455U true JPH0484455U (en) | 1992-07-22 |
Family
ID=31874671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12715790U Pending JPH0484455U (en) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663662U (en) * | 1993-02-22 | 1994-09-09 | 株式会社小松製作所 | Bulldozer operator cabin support equipment |
-
1990
- 1990-11-29 JP JP12715790U patent/JPH0484455U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663662U (en) * | 1993-02-22 | 1994-09-09 | 株式会社小松製作所 | Bulldozer operator cabin support equipment |
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