JPS58134209A - Disposal structure of safety switch in hydraulic circuit - Google Patents
Disposal structure of safety switch in hydraulic circuitInfo
- Publication number
- JPS58134209A JPS58134209A JP58014700A JP1470083A JPS58134209A JP S58134209 A JPS58134209 A JP S58134209A JP 58014700 A JP58014700 A JP 58014700A JP 1470083 A JP1470083 A JP 1470083A JP S58134209 A JPS58134209 A JP S58134209A
- Authority
- JP
- Japan
- Prior art keywords
- servo
- safety switch
- working medium
- switching device
- hydraulic circuit
- 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
Links
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- E02F9/24—Safety devices, e.g. for preventing overload
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Operation Control Of Excavators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、液圧回路における安全スイッチの配設構造に
関する。この場合、液体は消費部に供給排出される作業
媒体である。この構造において、液圧回路の作業スイッ
チはサーボ液圧回路内のサーボ切換装置を介して制御さ
れる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for arranging a safety switch in a hydraulic circuit. In this case, the liquid is the working medium that is supplied to and discharged from the consumer. In this construction, the working switch of the hydraulic circuit is controlled via a servo switching device in the servo hydraulic circuit.
本発明の課題は、意図しない切換操作を確実に防止する
ことである。この危険は特に、空間が狭いために切換レ
バーに偶然に触れて切換レバーを動かす場合に発生する
。このようなことは例えば土木機械の運転台の乗降の際
にしばしば起きる。An object of the present invention is to reliably prevent unintended switching operations. This risk arises in particular when the switching lever is accidentally touched and moved due to limited space. This often happens, for example, when getting in and out of the cab of an earth-moving machine.
この課題は、冒頭に述べた種の構造体において、作業媒
体通路を備えた回転スプール弁ピストンがサーボ切換装
置内でケーシングと構造的に一体化されて設けられ、サ
ーボポンプ導管が前記の作業媒体通路によってタンク導
管と接続可能であることによって解決される。This task is achieved in a structure of the type mentioned at the outset, in which a rotary spool valve piston with a working medium channel is provided in a servo switching device, structurally integrated with the housing, and a servo pump conduit is provided with a working medium duct. The solution is that it can be connected to the tank line by means of a passage.
本発明の利点は、サーボ切換装置のケーシングに組込ま
れた安全スイッチが付加的な液圧導管と特別な場所空間
を必要としないこと、およびサーボ切換装、置に組込む
際に簡単な作業で機能を発揮．することにある。The advantage of the invention is that the safety switch integrated into the casing of the servo-switching device does not require additional hydraulic conduits and special space, and that it functions easily when integrated into the servo-switching device. Demonstrate. It's about doing.
その際、安全スイッチがサーボポンプ入力とサーボ切換
装置の他の作業媒体通路の間の流路に″設けられている
と、一層安全となる。In this case, it is even safer if a safety switch is provided in the flow path between the servo pump input and the other working medium path of the servo switching device.
図に基づい”て本発明の詳細な説明する。The present invention will be explained in detail based on the figures.
第１図は、サーボ切換装置２のケージ′ングに組込んだ
安全スイッチ１を示している。その際、安全スイッチは
、それがサーボポンプ入力部とサーボ切換装置２の他の
作業媒体通路との間に位置するように、タンク３から作
業媒体を供給されかつサーボポンプ４によって作業圧力
下にあるサーボ回路の中に設けられている。第１図に示
すように、安全スイッチ１の作業媒体通路が非作用位置
にあると、作業媒体はサーボ回路内でサーボポンプ導管
５と流入通路６と調節区間７と流入側のサーボ切換導管
８を経て作業スイッチ９へ流れ、そして更に流出側のサ
ーボ切換導管１０とタンク通路１１とタイク導管１２を
経てタンク３に戻る。このサーボ□液体流れにとって、
＋１
従来は、切換レバー１３が適切な切換位置にあることお
よび調節区間７内の調節ピストンが適切な位置にあるこ
とが条件であった。その結果、一作業スイッチ９が選択
された）換位置に置かれ、そして液圧装置の作業回路内
において作業ポンプ１４と消費部１５によって象徴化さ
れて、何らかの作業操作を行うことになる。FIG. 1 shows a safety switch 1 integrated into the cage of a servo switching device 2. FIG. The safety switch is then supplied with working medium from the tank 3 and under working pressure by the servo pump 4 in such a way that it is located between the servo pump input and the other working medium path of the servo switching device 2. It is installed in a certain servo circuit. As shown in FIG. 1, when the working medium channel of the safety switch 1 is in the inactive position, the working medium flows in the servo circuit through the servo pump conduit 5, the inflow channel 6, the regulating section 7 and the servo switching conduit 8 on the inflow side. It flows to the work switch 9 via the servo switching conduit 10 on the outflow side, the tank passage 11 and the tie conduit 12, and then returns to the tank 3. For this servo □ liquid flow,
+1 Previously, it was a condition that the switching lever 13 be in the appropriate switching position and that the adjusting piston in the adjusting section 7 be in the appropriate position. As a result, one working switch 9 is placed in the selected (replacement) position and is symbolized by the working pump 14 and the consumer 15 in the working circuit of the hydraulic system to carry out some working operation.
第２図は、第１図の安全スイッチ１を安全スイッチレバ
ー１６の切断線Ａ−Ｂに沿って切断した断面を示してい
る。図から判るように、サーボ切換装置２のケーシング
に回転スプール弁ピストン１７が一体化され、このピス
トンは作業媒体通路１８を備えている。この通路は回転
スプール弁ピストン１７の角度位置に応じて、第２図に
示すように流入通路６の作業圧力に通じているか、ある
いは第４図に示すようにサーボポンプ導管５を夕／り導
管１２と連結している。FIG. 2 shows a cross section of the safety switch 1 shown in FIG. 1 taken along the cutting line AB of the safety switch lever 16. As can be seen, a rotary spool valve piston 17 is integrated into the housing of the servo switching device 2, which piston is provided with a working medium channel 18. Depending on the angular position of the rotary spool valve piston 17, this passage either leads to the working pressure of the inlet passage 6, as shown in FIG. It is connected to 12.
第３図は安全スイッチレバー１６の他の角度位置を示し
ている。、この位置では、作業媒体が安全スイッチの作
−″媒体通路を流過し、その結果サーボ切換装置の他の
作業媒体通路をバイパスする。切換レバー１３の選択位
置変更は液圧作業回路と消費部１５に全く影響を及ぼさ
ない。FIG. 3 shows another angular position of the safety switch lever 16. , in this position, the working medium flows through the operating medium path of the safety switch and as a result bypasses the other working medium path of the servo switching device.The selective position change of the switching lever 13 allows the hydraulic working circuit and the consumption It has no effect on section 15 at all.
第４図は、第３図の切断線Ｃ−Ｄに沿った安全スイッチ
の断面を詳細に示している。回転スプール弁ピストン１
７の位置を変更すると、作業媒体流れをサーボポンプ導
管５から直接タンク導管１２へ短絡させることになる。FIG. 4 shows a detailed cross-section of the safety switch along section line CD in FIG. 3. FIG. Rotating spool valve piston 1
Changing the position of 7 results in a short circuit of the working medium flow from the servo pump conduit 5 directly to the tank conduit 12.
第１図と第２図は作動状態の液圧回路を示す図、第３図
と第４図は、サーボ切換装置から命令が発せられない状
態にあっての安全スイッチの作用状態を示す図である。
−図中符号
１・−・安全スイッチ
２・・・サーボ切換装置
５・・・サーボポンプ導管
１２・拳・タンク導管
１７・・・回転スブニル弁ピストン
１８・・・作業媒体通路Figures 1 and 2 are diagrams showing the hydraulic circuit in the operating state, and Figures 3 and 4 are diagrams showing the operating state of the safety switch when no command is issued from the servo switching device. be. - Code 1 in the figure - Safety switch 2... Servo switching device 5... Servo pump conduit 12, fist/tank conduit 17... Rotating subunil valve piston 18... Working medium passage
Claims (1)
ストン（１７）がサーボ切換装置（２）内でケージ７グ
と構造的に一体化されて設けられ、サーボポンプ導管（
５）が前記の作業媒体通路によってタンク導管（１２）
と接続可能であることを特徴とする、液圧回路における
安全スイッチの配設構造。 ２、 安全スイッチ（１）がサーボポンプ入力部と、サ
ーボポンプ入力部とサーボポンプ切換装置（２）の他の
作業媒体通路の間の流路に設けられていることを特徴と
する特許 １項記載の配設構造。[Claims] 1. A rotary spool valve piston (17) with a working medium passage (18) is provided in the servo switching device (2) structurally integrated with the cage 7, and a servo pump conduit. (
5) is connected to the tank conduit (12) by said working medium passage.
An arrangement structure for a safety switch in a hydraulic circuit, characterized in that it can be connected to. 2. Patent Paragraph 1, characterized in that the safety switch (1) is provided in the flow path between the servo pump input part and the other working medium passage of the servo pump input part and the servo pump switching device (2). Arrangement structure as described.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3203432.6 | 1982-02-02 | ||
| DE3203432A DE3203432C2 (en) | 1982-02-02 | 1982-02-02 | Hand-operated, route-dependent ballast control device on the driver's cab of a construction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58134209A true JPS58134209A (en) | 1983-08-10 |
| JPH0366526B2 JPH0366526B2 (en) | 1991-10-17 |
Family
ID=6154560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58014700A Granted JPS58134209A (en) | 1982-02-02 | 1983-02-02 | Disposal structure of safety switch in hydraulic circuit |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS58134209A (en) |
| DE (1) | DE3203432C2 (en) |
| FR (1) | FR2520816B1 (en) |
| GB (1) | GB2118276B (en) |
| IT (1) | IT1164606B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4001681C1 (en) * | 1990-01-22 | 1990-12-20 | Wirth Maschinen- Und Bohrgeraete-Fabrik Gmbh, 5140 Erkelenz, De | |
| CN116195165A (en) * | 2021-06-02 | 2023-05-30 | 东芝三菱电机产业系统株式会社 | Power supply device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137494U (en) * | 1974-04-27 | 1975-11-12 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB689796A (en) * | 1950-06-30 | 1953-04-08 | Charles Bernard Marshall | Improvements in or relating to hydraulic stop valves |
| US3183977A (en) * | 1962-12-03 | 1965-05-18 | Allis Chalmers Mfg Co | Tractor power lift system |
| US3960059A (en) * | 1974-12-09 | 1976-06-01 | Caterpillar Tractor Co. | Fast exhaust circuit for hydraulic jacks |
| FR2357764A1 (en) * | 1976-07-06 | 1978-02-03 | Poclain Sa | AT LEAST TWO FLUID MOTOR UNITS |
| DE2649793C2 (en) * | 1976-10-29 | 1983-09-08 | Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim | Safety control for a hydraulically operated press |
-
1982
- 1982-02-02 DE DE3203432A patent/DE3203432C2/en not_active Expired
-
1983
- 1983-01-28 GB GB08302447A patent/GB2118276B/en not_active Expired
- 1983-01-31 FR FR838301434A patent/FR2520816B1/en not_active Expired
- 1983-02-01 IT IT47642/83A patent/IT1164606B/en active
- 1983-02-02 JP JP58014700A patent/JPS58134209A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137494U (en) * | 1974-04-27 | 1975-11-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1164606B (en) | 1987-04-15 |
| IT8347642A0 (en) | 1983-02-01 |
| GB2118276B (en) | 1985-06-19 |
| FR2520816B1 (en) | 1985-07-26 |
| GB8302447D0 (en) | 1983-03-02 |
| JPH0366526B2 (en) | 1991-10-17 |
| FR2520816A1 (en) | 1983-08-05 |
| GB2118276A (en) | 1983-10-26 |
| DE3203432C2 (en) | 1985-02-14 |
| DE3203432A1 (en) | 1983-08-11 |
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