JPH0416620B2 - - Google Patents
Info
- Publication number
- JPH0416620B2 JPH0416620B2 JP56215559A JP21555981A JPH0416620B2 JP H0416620 B2 JPH0416620 B2 JP H0416620B2 JP 56215559 A JP56215559 A JP 56215559A JP 21555981 A JP21555981 A JP 21555981A JP H0416620 B2 JPH0416620 B2 JP H0416620B2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- engine
- power take
- speed
- switching device
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
【発明の詳細な説明】
この発明は、走行農機に連結した作業機の駆動
機構と動力取出伝導軸等に過大荷重が作用しない
ようにする為のエンジン速度制御装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine speed control device for preventing excessive loads from acting on the drive mechanism, power output transmission shaft, etc. of a working machine connected to a traveling agricultural machine.
走行速度に関係なくその駆動速度が設定できる
所謂インデイペンデント動力取出機構を用いてい
るものでは、例えばモア作業のように高速走行中
に作業機の駆動を開始し、又は中断することが行
われるので、このように高速走行でエンジンも高
速回転のまま動力取出クラツチを接続すると、動
力取出伝導軸や作業機側の駆動機構等に大きい衝
撃力が作用してこれらの部材が破損する恐れもあ
る。 In machines that use a so-called independent power take-off mechanism that allows the drive speed to be set regardless of the running speed, the drive of the work equipment is started or stopped during high-speed running, such as when working with a mower. Therefore, if you connect the power take-off clutch while driving at high speed and the engine is still rotating at high speed, a large impact force will be applied to the power take-off transmission shaft, the drive mechanism of the work equipment, etc., and there is a risk of damaging these parts. .
そこで、本発明は前記欠陥に鑑み、之を解消せ
んとして提案せられたものであり、エンジン１の
走行系の伝動後位に主クラツチ２と動力取出クラ
ツチ７が設けられると、該エンジン１の回転を落
す低速切替装置１８が設けられ、更に、前記動力
取出クラツチ７の入切動作を為すための開閉スイ
ツチＳが設けられ、該動力取出クラツチ７が入動
作されるように前記開閉スイツチＳを操作する
と、一定時間T1だけ低速切替装置１８が作動し
て前記エンジン１の回転を低速に落し、更に、所
定時間T2だけ遅れて動力取出クラツチ７が接続
される制御手段が設けられ、且つ、T1＞T2に設
定されていることを特徴とする走行農機のエンジ
ン速度制御装置
そして一実施例を説明すれば、第１図に走行農
機としてトラクタの動力伝達系を示したが、エン
ジン１の出力は主クラツチ２を介して駆動軸３に
伝えられ、変送機構４によつて変速されて走行車
輪５を駆動するものであり、又、主クラツチ２の
出力軸６の動力は、動力取出クラツチ７によつて
断接制御されて変速機構８を介して、動力取出軸
９から自在接手軸１０を介して作業機１１の駆動
機構を駆動するものであり、又、動力取出クラツ
チ７は例えば、そのピストン１２を圧力油によつ
て摩擦板群１３に圧接すると主クラツチ２の出力
軸６と動力取出クラツチ７の出力軸１４が接続さ
れてクラツチ接となり、ピストン１２に圧力油を
供給しないときは、戻しばね１５によつて動力取
出クラツチ７がクラツチ切状態となるものであつ
て、切替弁１６の電磁ソレノイド１６ａに通電す
ればポンプＰの圧力油がこの切替弁１６を介しピ
ストン１２に供給され、電磁ソレノイド１６ａへ
の通電を断つとピストン１２への圧力油の供給は
停止されると共に、このピストン１２の背部に残
つている油がタンク１７に排出される構造であ
る。そして、エンジン１の回転速度を低速に切替
えできる低速切替装置１８を設け、又、タイマー
の如き定時間設定部１９を設けて、この定時間設
定部１９からの出力のある間は低速切替装置１８
が動作するように接続して、動力取出クラツチ７
のクラツチ接続動作を行うスイツチＳを投入した
ときがら一定時間だけ、この定時間設定部１９か
ら出力するように構成している。 Therefore, the present invention has been proposed in view of the above-mentioned defects, and is intended to solve the problem.If the main clutch 2 and the power take-off clutch 7 are provided at the rear of the transmission in the running system of the engine 1, the engine 1 A low speed switching device 18 is provided to reduce the rotation, and an open/close switch S is provided for turning on/off the power take-off clutch 7. A control means is provided which, when operated, operates the low speed switching device 18 for a predetermined time T1 to reduce the rotation of the engine 1 to a low speed, and further connects the power take-off clutch 7 after a predetermined time T2; , T 1 > T 2 An engine speed control device for a traveling agricultural machine, characterized in that T 1 > T 2 is set.To explain one embodiment, Fig. 1 shows the power transmission system of a tractor as a traveling agricultural machine. The output of the main clutch 2 is transmitted to the drive shaft 3 via the main clutch 2, and the speed is changed by the transmission mechanism 4 to drive the running wheels 5.The power of the output shaft 6 of the main clutch 2 is The power take-off clutch 7 controls the connection and disengagement to drive the drive mechanism of the working machine 11 from the power take-off shaft 9 to the universal joint shaft 10 via the transmission mechanism 8, and the power take-off clutch 7 For example, when the piston 12 is pressed against the friction plate group 13 by pressure oil, the output shaft 6 of the main clutch 2 and the output shaft 14 of the power take-off clutch 7 are connected and become clutched, and pressure oil is supplied to the piston 12. If not, the power take-off clutch 7 is in the clutch disengaged state by the return spring 15, and when the electromagnetic solenoid 16a of the switching valve 16 is energized, the pressure oil of the pump P flows through the switching valve 16 to the piston 12. When the electromagnetic solenoid 16a is de-energized, the supply of pressure oil to the piston 12 is stopped and the oil remaining at the back of the piston 12 is discharged into the tank 17. A low speed switching device 18 that can switch the rotational speed of the engine 1 to a low speed is provided, and a fixed time setting section 19 such as a timer is provided.
Connect the power take-off clutch 7 for operation.
The configuration is such that the fixed time setting section 19 outputs an output for a fixed period of time when the switch S, which performs the clutch connection operation, is turned on.
そして、低速切替装置１８の一例として第２図
に示したものは、エンジンガバナー２０によつて
噴射ポンプの燃料噴射量を制御するように設けら
れているコントロールラツク２１を、燃料減少位
置又は通常供給位置の夫々に切替えする電磁ソレ
ノイドを使用している。即ち、エンジンガバナー
２０のフライウエイト２２…は、エンジン回転速
度に比例して回転するカムシヤフト２３が低速回
転であるときは第３図のように互に閉じた位置に
あつて、この為、サイドレバー２４とフローチン
グレバー２５は、コントロールラツク２１と一体
のスピードアジヤスチングボルト２６を燃料増加
位置に保持し、エンジン回転速度が増加すれば第
４図のようにフライウエイト２２…が互に開くの
で、スピードアジヤスチングボルト２６とコント
ロールラツク２１は燃量減少位置に保持される。
そして、低速切替装置１８は、電磁ソレノイド２
７のアクチユエーター２７ａをスピードアジヤス
チングボルト２６に連結して、電磁ソレノイド２
７に通電をしないときは、コントロールラツク２
１はエンジンガバナー２０の制御動作によつて動
作するが、電磁ソレノイド２７に通電したときに
は、第４図に例示したようにアクチユエータ２７
ａを動作させるので、フライウエイト２２…の位
置には無関係に燃量減少位置にコントロールラツ
ク２１が保持されるよう構成している。 An example of the low speed switching device 18 shown in FIG. It uses an electromagnetic solenoid that switches to each position. That is, when the camshaft 23, which rotates in proportion to the engine rotational speed, is rotating at a low speed, the flyweights 22 of the engine governor 20 are in mutually closed positions as shown in FIG. 24 and the floating lever 25 hold the speed adjusting bolt 26, which is integrated with the control rack 21, in the fuel increasing position, and as the engine speed increases, the fly weights 22 open each other as shown in Fig. 4. , speed adjusting bolt 26 and control rack 21 are held in the reduced fuel position.
Then, the low speed switching device 18 is connected to the electromagnetic solenoid 2.
7 actuator 27a is connected to the speed adjusting bolt 26, and the electromagnetic solenoid 2
When 7 is not energized, control rack 2
1 is operated by the control operation of the engine governor 20, but when the electromagnetic solenoid 27 is energized, the actuator 27 is activated as illustrated in FIG.
Since the control rack 21 is operated, the control rack 21 is held at the fuel reduction position regardless of the position of the flyweights 22.
又、定時間設定部１９の一例として第１図に示
したものは、抵抗R1，R2とコンデンサC1からな
る微分回路であつて、スイツチＳを投入すると電
源Ｅの電圧は直ちにこの定時間設定部１９出力側
の点Ａに現われて、第５図のように設定時間T1
にわたつて出力し、その後に出力が０となるもの
である。従つて、この定時間設定部１９はゼンマ
イばね等を用いた機械的なタイマであつても良
く、公知の種々のものを用いる事が出来る。 Also, the one shown in FIG. 1 as an example of the fixed time setting section 19 is a differential circuit consisting of resistors R 1 and R 2 and a capacitor C 1 , and when the switch S is turned on, the voltage of the power source E immediately changes to this constant value. Appears at point A on the output side of the time setting section 19, and sets the set time T 1 as shown in FIG.
The output is output for a period of time, and then the output becomes 0. Therefore, the fixed time setting section 19 may be a mechanical timer using a spiral spring or the like, and various known devices can be used.
そして、実施例のものに於ては、遅延動作部１
９ａを介して電源Ｅを切替弁１６の電磁ソレノイ
ド１６ａに接続するように構成している。そし
て、この遅延動作部２６の一例として第１図に例
示したものは、抵抗R3，R4とコンデンサC2及び
ダイオードＤからなる積分回路であつて、スイツ
チＳを投入すると電源Ｅの電圧は、第５図のよう
に設定時間T2の後に出力側の点Ｂに現われて電
磁ソレノイド１６ａに通電されることになる、そ
して、設定時間は、T1＞T2となるように設定し
ておく。従つて、動力取出クラツチ７のスイツチ
Ｓを投入すれば、定時間設定部１９から直ちに出
力があるので低速切替装置１８の電磁ソレノイド
２７が動作してコントロールラツク２１は燃料ポ
ンプの噴射量を減少する為、エンジン１の回転速
度は一定値にまで減速することになり、又、遅延
動作部２６から設定時間T2の後にその出力があ
るので、スイツチＳの投入後設定時間T2の後に
電磁切替弁１６が切替えられて動力取出クラツチ
７は接続されることになり、この時点では低速切
替装置１８が作動中であるので、エンジン１は所
定の低速回転に切替えられている為、クラツチ接
続時には過大でない適正なトルクがその出力軸１
４に伝えられることになつて、動力取出軸９、自
在接手軸１０、作業機１１の駆動機構等にこのク
ラツチ接続の際、作用する衝撃は充分に緩和され
るものである。 In the embodiment, the delay operation section 1
The configuration is such that the power source E is connected to the electromagnetic solenoid 16a of the switching valve 16 via 9a. An example of the delay operation section 26 shown in FIG. 1 is an integrating circuit consisting of resistors R 3 and R 4 , a capacitor C 2 , and a diode D. When the switch S is turned on, the voltage of the power supply E is , it will appear at point B on the output side after the set time T 2 and the electromagnetic solenoid 16a will be energized, as shown in Figure 5.The set time is set so that T 1 > T 2 . put. Therefore, when the switch S of the power take-off clutch 7 is turned on, there is an immediate output from the fixed time setting section 19, so the electromagnetic solenoid 27 of the low speed switching device 18 operates, and the control rack 21 reduces the injection amount of the fuel pump. Therefore, the rotational speed of the engine 1 is decelerated to a constant value, and since the delay operation section 26 outputs the output after the set time T2 , the electromagnetic switching is performed after the set time T2 after the switch S is turned on. The valve 16 is switched and the power take-off clutch 7 is connected. At this point, the low speed switching device 18 is in operation, so the engine 1 is switched to a predetermined low speed rotation, so when the clutch is connected, the power take-off clutch 7 is connected. The proper torque is not the output shaft 1.
4, the impact acting on the power take-off shaft 9, the universal joint shaft 10, the drive mechanism of the working machine 11, etc. when the clutch is connected is sufficiently alleviated.
この発明のエンジン速度制御装置は、動力取出
クラツチ７のクラツチ接続操作に連動して低速切
替装置１８切替動作が開始されて、定時間設定部
１９によつて設定時間だけこの低速切替装置１８
が動作し、この設定時間内に動力取出クラツチ７
の接続動作が行われるように構成しているので、
動力取出クラツチ７が接続される時にはエンジン
１は適度に低速回転となつてクラツチ接続時の衝
撃は充分に小さいものとなり、動力取出クラツチ
７以降の動力伝達機構各部に及ばず衝撃は充分に
緩和されることになる。従つて、動力取出クラツ
チの接続時の過大な衝撃に起因する関係部材の破
損や劣化をこの発明によつて確実に防止できるも
のである。 In the engine speed control device of the present invention, the switching operation of the low speed switching device 18 is started in conjunction with the clutch connection operation of the power take-off clutch 7, and the low speed switching device 18 is operated for a set time by the fixed time setting section 19.
operates, and within this set time the power take-off clutch 7
Since it is configured so that the connection operation is performed,
When the power take-off clutch 7 is connected, the engine 1 rotates at a moderately low speed, and the impact when the clutch is connected is sufficiently small, and the impact is sufficiently alleviated without affecting any part of the power transmission mechanism after the power take-off clutch 7. That will happen. Therefore, the present invention can reliably prevent damage and deterioration of related members caused by excessive impact when the power take-off clutch is connected.
而して、本発明に於いては、動力取出クラツチ
７の入切操作のみに関与し、トラクタの走行系の
変速操作には全く影響せずトラクタの発進、停止
の繰化返し能率良く行われる。そして、大なる慣
性モーメントを有する作業機１１を急に回転させ
ると、機器を破損させる恐れが生じるが、前記動
力取出クラツチ７の接続時に於ては前述せる如く
エンジン１の回転が一時的に落ちているので、エ
ンジン１の回転動力が滑らかに接続され、動力取
出軸９、自在接手軸１０、作業機１１の駆動機構
等に過大な衝撃が加わることはない。 Therefore, in the present invention, it is involved only in the on/off operation of the power take-off clutch 7, and does not affect the speed change operation of the traveling system of the tractor at all, allowing the tractor to start and stop repeatedly and efficiently. . If the work implement 11, which has a large moment of inertia, suddenly rotates, there is a risk of damaging the equipment, but as mentioned above, when the power take-off clutch 7 is connected, the rotation of the engine 1 may temporarily drop. Therefore, the rotational power of the engine 1 is smoothly connected, and no excessive impact is applied to the power take-off shaft 9, the universal joint shaft 10, the drive mechanism of the working machine 11, etc.
図はこの発明の実施例を示すもので、第１図は
制御回路図、第２図は低速切替装置の斜視図、第
３図と第４図は低速切替装置の夫々の動作位置の
説明図、第５図は動作線図である。
符号説明、１……エンジン、２……主クラツ
チ、３……駆動軸、４，８……変速機構、５……
走行車輪、６……出力軸、７……動力取出クラツ
チ、９……動力取出軸、１０……自在接手軸、１
１……作業機、１２……ピストン、１３……摩擦
板群、１４…出力軸、１５……戻しばね、１６…
…切替弁、１６ａ，２７……電磁ソレノイド、１
７……タンク、１８……低速切替装置、１９……
定時間設定部、２０……エンジンガバナー、２１
……コントロールラツク、２２……フライウエイ
ト、２３……カムシヤフト、２４……サイドレバ
ー、２５……フローチングレバー、２７ａ……ア
クチユエーター、２６……スピードアジヤスチン
グボルト、Ｓ……スイツチ、Ｐ……ポンプ、Ｄ…
…ダイオード、Ａ，Ｂ……点、C1，C2……コン
デンサ、T1，T2……設定時間、R1，R2，R3，R4
……抵抗。
The figures show an embodiment of the present invention, in which Fig. 1 is a control circuit diagram, Fig. 2 is a perspective view of the low-speed switching device, and Figs. 3 and 4 are explanatory diagrams of the respective operating positions of the low-speed switching device. , FIG. 5 is an operation diagram. Description of symbols, 1...Engine, 2...Main clutch, 3...Drive shaft, 4, 8...Transmission mechanism, 5...
Traveling wheel, 6... Output shaft, 7... Power take-off clutch, 9... Power take-off shaft, 10... Universal joint shaft, 1
DESCRIPTION OF SYMBOLS 1... Working machine, 12... Piston, 13... Friction plate group, 14... Output shaft, 15... Return spring, 16...
...Switching valve, 16a, 27...Electromagnetic solenoid, 1
7...Tank, 18...Low speed switching device, 19...
Fixed time setting section, 20...Engine governor, 21
... Control rack, 22 ... Fly weight, 23 ... Camshaft, 24 ... Side lever, 25 ... Floating lever, 27a ... Actuator, 26 ... Speed adjusting bolt, S ... Switch, P...pump, D...
...Diode, A, B...point, C 1 , C 2 ...capacitor, T 1 , T 2 ...setting time, R 1 , R 2 , R 3 , R 4
……resistance.
Claims (1)
２と動力取出クラツチ７が設けられると共に、該
エンジン１の回転を落す低速切替装置１８が設け
られ、更に、前記動力取出クラツチ７の入切動作
を為すための開閉スイツチＳが設けられ、該動力
取出クラツチ７が入動作されるように前記開閉ス
イツチＳを操作すると、一定時間T1だけ低速切
替装置１８が作動して前記エンジン１の回転を低
速に落し、更に、所定時間T2だけ遅れて動力取
出クラツチ７が接続される制御手段が設けられ、
且つ、T1＞T2に設定されていることを特徴とす
る走行農機のエンジン速度制御装置。1 A main clutch 2 and a power take-off clutch 7 are provided at the rear of the transmission of the running system of the engine 1, and a low-speed switching device 18 for reducing the rotation of the engine 1 is provided, and furthermore, a low speed switching device 18 is provided to reduce the rotation of the engine 1, and furthermore, When the on-off switch S is operated so that the power take-off clutch 7 is engaged, the low-speed switching device 18 is operated for a certain period of time T1 to control the rotation of the engine 1. control means are provided for reducing the speed to a low speed and further connecting the power take-off clutch 7 after a predetermined time T2 ;
An engine speed control device for a traveling agricultural machine, characterized in that T 1 >T 2 is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21555981A JPS58113546A (en) | 1981-12-25 | 1981-12-25 | Engine-speed controller of traveling agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21555981A JPS58113546A (en) | 1981-12-25 | 1981-12-25 | Engine-speed controller of traveling agricultural machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113546A JPS58113546A (en) | 1983-07-06 |
| JPH0416620B2 true JPH0416620B2 (en) | 1992-03-24 |
Family
ID=16674429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21555981A Granted JPS58113546A (en) | 1981-12-25 | 1981-12-25 | Engine-speed controller of traveling agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58113546A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356846U (en) * | 1989-10-04 | 1991-05-31 | ||
| JPH094481A (en) * | 1996-07-18 | 1997-01-07 | Yanmar Agricult Equip Co Ltd | Engine output control device for traveling work machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5696129A (en) * | 1979-12-28 | 1981-08-04 | Nissan Motor Co Ltd | Fuel feeder for car mounting automatic speed change gear |
| JPS56142246U (en) * | 1980-03-26 | 1981-10-27 |
-
1981
- 1981-12-25 JP JP21555981A patent/JPS58113546A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58113546A (en) | 1983-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4081065A (en) | Controlled power clutch | |
| CA1130659A (en) | Marine propulsion device including ignition interruption means to assist transmission shifting | |
| US4759185A (en) | Operator presence switch with service by-pass | |
| US4928458A (en) | Engine control device for mower | |
| JPH0416620B2 (en) | ||
| CA1158180A (en) | Lawn mower brake and starter | |
| US5171176A (en) | Method and apparatus for decelerating a marine propulsion system during an emergency stop maneuver | |
| EP0421542B1 (en) | Tractor power-takeoff engagement limit | |
| US20250289304A1 (en) | A power transmission system for a work machine | |
| JPH02200538A (en) | Control device for vehicle with automatic transmission | |
| JPH0254248B2 (en) | ||
| WO2024127091A1 (en) | A power transmission system for a work machine | |
| US3495478A (en) | Power boost system | |
| DE3442112C2 (en) | Motor vehicle with an internal combustion engine, the fuel supply of which can be switched off in overrun mode | |
| US1238927A (en) | Power-transmission device. | |
| JPH05272636A (en) | Controller for torque converter with lock-up unit | |
| JP2944356B2 (en) | Combine accelerator control device | |
| JPS628179Y2 (en) | ||
| JP2587159Y2 (en) | Unmanned operation device for forward / reverse switching mechanism in work vehicle | |
| JPH02135751U (en) | ||
| JPH01175530A (en) | Tractor power take-off clutch control device | |
| JPH0620731Y2 (en) | Control device for garbage truck | |
| JPH0530975Y2 (en) | ||
| JP2925950B2 (en) | Automatic control device for road rollers | |
| JPS6018986Y2 (en) | Steering wheel reaction force reduction device at the start of reversing in walking-type mobile agricultural machinery |