JPH01291716A - Load controller for reaping and collecting device - Google Patents
Load controller for reaping and collecting deviceInfo
- Publication number
- JPH01291716A JPH01291716A JP63122939A JP12293988A JPH01291716A JP H01291716 A JPH01291716 A JP H01291716A JP 63122939 A JP63122939 A JP 63122939A JP 12293988 A JP12293988 A JP 12293988A JP H01291716 A JPH01291716 A JP H01291716A
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- Prior art keywords
- load
- engine
- grass
- rotation speed
- running
- Prior art date
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 5
- 244000025254 Cannabis sativa Species 0.000 claims description 59
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract description 6
- 230000007935 neutral effect Effects 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 11
- 230000005856 abnormality Effects 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、刈取集草装置の負荷制御装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a load control device for a grass cutting and collecting device.
（従来の技術）
車体に走行装置を備えると共に、モアーと、このモアー
によって刈取られた刈草を容器に回収する集草機とを備
え、これら走行装置、モアー及び集草機を車体に搭載の
エンジンで駆動するようにした刈取集草装置は、乗用型
の芝刈用として従来から既に広く採用されている。(Prior Art) A vehicle body is equipped with a traveling device, a mower, and a grass collector that collects grass clippings cut by the mower into a container, and these traveling devices, mower, and grass collector are connected to an engine mounted on the vehicle body. BACKGROUND ART Grass cutting and collecting devices driven by a motor have already been widely used as riding lawn mowers.
この種の刈取集草装置における制御技術としては、従来
、過負荷時の安全装置レベル、警告レベル程度のものに
すぎず、走行負荷、刈取負荷等のエンジン負荷を判断し
、かつ集草負荷の適否を組合せて総合的に負荷制御を行
なうようにしたものはなかった。Conventionally, the control technology for this type of grass clipping device has only been at the level of a safety device or a warning level in the event of overload, and it is necessary to judge engine loads such as running load and cutting load, and to control the grass collection load. There is no one that comprehensively performs load control by combining suitability and disapproval.
（発明が解決しようとする課題）
従来では、オペレータが走行負荷、刈取負荷等負荷状態
を判断すると共に、集草負荷を判断して人為的に走行速
度、エンジン回転数等を制御していたので、傾斜地、或
いは草の密集地等では判断を誤まり、従って、常に最適
負荷状態で装置の能力を十分に発揮しながら作業を行な
うことができなかった。(Problems to be Solved by the Invention) Conventionally, the operator judged the load conditions such as the running load and the mowing load, and also judged the grass collection load and artificially controlled the running speed, engine rotation speed, etc. , on slopes, or in densely grassed areas, etc., and as a result, it was not always possible to carry out work while fully utilizing the capabilities of the equipment under the optimum load condition.
本発明は、このような従来の問題点に鑑み、集草負荷の
異常時に自動的に走行を止めて作業を中止する以外、常
に最適なエンジン負荷で能力を十分に発揮しながら作業
を行ない得るようにすることを目的とする。In view of these conventional problems, the present invention has been developed to automatically stop traveling and stop work when there is an abnormality in the grass collection load, and to perform work while fully demonstrating its ability at all times with an optimal engine load. The purpose is to do so.
（課題を解決するための手段）
本発明は、そのための手段として、走行装置５゜８を備
えた車体１に、モアー２２と、このモアー２２によって
刈取られた刈草を集草容器３０に回収する集草機３３と
を設け、これら走行装置５，８、モアー２２及び集草機
３３を車体１に搭載のエンジン２で駆動するようにした
刈取集草装置において、エンジン回転数を検出する回転
数検出器３９と、集草負荷を検出する負荷検出器４５と
、回転数検出器３９からの信号によりエンジン回転数の
低下を判別する回転数判別手段４７と、この回転数判別
手段４７がエンジン回転数の低下を判別した時に、負荷
検出器４５からの信号により集草負荷が正常か否かを判
別する負荷判別手段４８とを備え、集草負荷の正常時に
はエンジン回転数が回復するように走行速度を減速させ
、異常時には走行を停止させるようにしたものである。(Means for Solving the Problems) To achieve this, the present invention provides a vehicle body 1 equipped with a traveling device 5.8, a mower 22, and a mower 22 for collecting grass clippings cut by the mower 22 into a grass collecting container 30. In the mowing and grass collecting device which is provided with a grass collector 33 and drives these traveling devices 5, 8, mower 22, and grass collector 33 by an engine 2 mounted on the vehicle body 1, the rotation speed for detecting the engine rotation speed is A detector 39, a load detector 45 that detects the grass collection load, a rotation speed determination means 47 that determines a decrease in the engine rotation speed based on a signal from the rotation speed detector 39, and a rotation speed determination means 47 that detects the engine rotation speed. A load determination means 48 is provided for determining whether or not the grass collection load is normal based on a signal from the load detector 45 when it is determined that the grass collection load has decreased, so that the engine speed is restored when the grass collection load is normal. It is designed to reduce the speed and stop running in the event of an abnormality.
（作 用）
作業時にはエンジン２を起動し、走行装置５．８を駆動
して所定速度で走行しながら、モアー２２のカッター２
５により芝生等を順次刈取り、その刈草を集草機３３に
よりダク）３７．３８を経て集草容器３０に回収して行
く。(Function) During work, the engine 2 is started and the cutter 2 of the mower 22 is driven while driving the traveling device 5.8 at a predetermined speed.
5, the lawn etc. are successively mowed, and the grass clippings are collected by the grass collector 33 into the grass collecting container 30 through the pipes 37 and 38.
この作業に際しては、第３図に示すようにステップ■で
先ず初期エンジン回転数を設定し、ステップ■で変速装
置３の初期斜板角の設定を行ない、これらが完了した後
、ステップ■でＰＴＯクラッチをオンし、エンジン２の
動力によってモアー２２及び集草［３３を駆動し所定の
作業に移る。In this work, as shown in Fig. 3, the initial engine speed is first set in step (2), the initial swash plate angle of the transmission 3 is set in step (2), and after these are completed, the PTO is set in step (3). The clutch is turned on, the mower 22 and the grass collector [33] are driven by the power of the engine 2, and a predetermined work is started.
作業中に傾斜地を登板する際、草の密集地を刈取る際、
或いは多量の刈取を集草する際等には、それに応じてエ
ンジン負荷が変動し、エンジン回転数にバラツキが生じ
る。そこで、作業中は回転数検出器３９で常時エンジン
回転数を検出し、回転数判別手段４７でエンジン回転数
の変動をチエツクする。そして、ステップ■でエンジン
回転数の低下を判別すると、次の負荷判別手段４８が働
き、ステップ■で、集草負荷が正常か否かを判別する。When climbing slopes during work, when mowing areas with dense grass,
Alternatively, when collecting a large amount of grass, the engine load changes accordingly, causing variations in the engine rotational speed. Therefore, during work, the engine speed is constantly detected by the engine speed detector 39, and the engine speed determination means 47 checks for fluctuations in the engine speed. When it is determined in step (2) that the engine speed has decreased, the next load determining means 48 operates, and in step (2) it is determined whether or not the grass collection load is normal.
この場合、集草負荷が正常であれば、集草機３３の詰ま
り以外、即ち、走行負荷、刈取負荷の増加が原因となっ
ているので、ステップ■で斜板角減少動作に移り、エン
ジン回転数が回復するように変速装置３により走行速度
を落す。ステップ■で集草負荷の異常、即ち刈草の詰ま
りと判別すれば、先ずステップ■で停止警告をし、ステ
ップ■で斜板角中立復帰動作を行ない、走行装置３を中
立に戻して走行を止めた後、ステップ■でエンジン停止
装置４１を動作させてエンジン２を完全に止める。In this case, if the grass collection load is normal, the cause is other than the clogging of the grass catcher 33, that is, an increase in the running load or the reaping load, so in step The speed change device 3 reduces the traveling speed so that the number recovers. If it is determined in step ■ that there is an abnormality in the grass collection load, that is, the grass is clogged, a stop warning is first issued in step ■, and in step ■, the swash plate angle is returned to neutral, and the traveling device 3 is returned to neutral to stop traveling. After that, in step (2), the engine stop device 41 is operated to completely stop the engine 2.
然る後、集草機３３を点検する。After that, the grass collector 33 is inspected.
（実施例）
以下、図示の実施例について本発明を詳述すると、第１
図及び−第２図において、１は車体で、この車体１には
前後中央部にエンジン２と静油圧式の変速装置３とが左
右に並設されると共に、前部に前車軸４を介して左右一
対の前輪５が遊転自在に懸架され、また後部に後輪デフ
装置６の後車軸７を介′して左右一対の後輪８が懸架さ
れている。(Example) Hereinafter, the present invention will be described in detail with reference to the illustrated example.
In Figures 1 and 2, reference numeral 1 denotes a vehicle body, and in this vehicle body 1, an engine 2 and a hydrostatic transmission 3 are installed side by side on the left and right in the center of the front and back, and a front axle 4 is connected to the front part of the vehicle body 1. A pair of left and right front wheels 5 are suspended for free rotation, and a pair of left and right rear wheels 8 are suspended at the rear via a rear axle 7 of a rear wheel differential device 6.
エンジン２は車体１に搭載されており、またエンジン２
から前方に突出するクランク軸９は巻掛伝動装置１０を
介して変速装置３の入力軸１１に連動連結されている。The engine 2 is mounted on the vehicle body 1, and the engine 2
A crankshaft 9 protruding forward from is interlockingly connected to an input shaft 11 of a transmission 3 via a wrap transmission 10.
変速装置３は出力軸１２を介してギヤー減速装置Ｉ３に
連動連結され、またこのギヤー減速装置１３は後輪推進
軸１４から後輪デフ装置６を経て後輪８を、前輪推進軸
１５から前輪デフ装置５゜を経て前輪５を夫々駆動する
ように構成されている。なお、前輪５及び後輪８によっ
て走行装置が構成される。The transmission 3 is interlocked with a gear reduction device I3 via an output shaft 12, and this gear reduction device 13 connects a rear wheel propulsion shaft 14 to a rear wheel differential device 6 to a rear wheel 8, and a front wheel propulsion shaft 15 to a front wheel. The front wheels 5 are each driven through a differential device 5°. Note that the front wheels 5 and the rear wheels 8 constitute a traveling device.
１６は前部ＰＴＯ軸で、前車軸４よりも下方で車体１の
前端下部に取付けられており、この前部ＰＴＯ軸１６は
巻掛伝動装置１７を介してクランク軸９に連動連結され
ている。A front PTO shaft 16 is attached to the lower front end of the vehicle body 1 below the front axle 4, and the front PTO shaft 16 is operatively connected to the crankshaft 9 via a wrap transmission 17. .
１８は車体１から前方に突出するステップ、１９はこの
ステップ１８の前端部に取付けられたハンドルポスト、
２０は操向用のハンドル、２１は運転席である。18 is a step projecting forward from the vehicle body 1; 19 is a handle post attached to the front end of this step 18;
20 is a steering wheel, and 21 is a driver's seat.
２２はモアーで、モアーデツキ２３の下側に、縦軸２４
廻りに回転する３個のカッター２５を備え、そのカッタ
ー２５の回転により草を刈取るようになっている。モア
ーデツキ２３は刈高さ調整用のゲージ輪２６等を有し、
かつ車体１から前方に張出す２本のリンク２７により車
体１に装着され、油圧シリンダ２８の伸縮により昇降自
在である。なお、各カッター２５は前部ＰＴＯ軸１６か
ら自在継手軸２９を経て伝達される動力により回転駆動
される。22 is a mower, and a vertical shaft 24 is located below the mower deck 23.
It has three cutters 25 that rotate around it, and the grass is cut by the rotation of the cutters 25. The mower deck 23 has a gauge wheel 26 for adjusting the cutting height,
It is attached to the vehicle body 1 by two links 27 extending forward from the vehicle body 1, and can be raised and lowered by expanding and contracting a hydraulic cylinder 28. Note that each cutter 25 is rotationally driven by power transmitted from the front PTO shaft 16 via the universal joint shaft 29.
３０は集草容器で、車体１から後方に突出する後部枠３
１上に配置されると共に、車体１の後部に立設された支
柱３２に取付けられている。なお、集草容器３０はパン
チングメタル等により構成されている。30 is a grass collecting container, and a rear frame 3 protrudes rearward from the vehicle body 1.
1 and is attached to a support column 32 erected at the rear of the vehicle body 1. Note that the grass collecting container 30 is made of punched metal or the like.
３３はモアー２２で刈取った刈草を集草容器３０に送込
む集草機であって、車体１の一側部に取付けられている
。集草機３３はケーシング３４内に回転羽根車３５を備
えたブロアー型で、その羽根車３５は巻掛伝動装置３６
を介してエンジン２のクランク軸９に連動連結されてい
る。ケーシング３４の吸込側はダクト３７を介してモア
ー２２に、吐出側はダクト３８を介して集草容器３０に
夫々接続されている。Reference numeral 33 denotes a grass collector that feeds grass clippings cut by the mower 22 into a grass collection container 30, and is attached to one side of the vehicle body 1. The grass collector 33 is a blower type equipped with a rotary impeller 35 in a casing 34, and the impeller 35 is connected to a winding transmission 36.
It is interlocked and connected to the crankshaft 9 of the engine 2 via. The suction side of the casing 34 is connected to the mower 22 via a duct 37, and the discharge side is connected to the grass collection container 30 via a duct 38.
エンジン２にはその回転数を検出する回転数検出器３９
が付設されると共に、レバー４０を介してエンジン２を
停止操作するりニアソレノイド等のエンジン停止装置４
１が付設されている。変速装置３は静油圧式であって、
その油圧ポンプの斜板角はレバー４２及びモータ４３に
より調整自在である。なお、モータ４３には斜板角の変
化量を検出するようにエンコーダ４４が取付けられてい
る。集草機３３の吸込側には、負圧の発生状況によって
集草負荷を検出する圧力スイッチ等の負荷検出器４５が
取付けられている。The engine 2 has a rotation speed detector 39 that detects its rotation speed.
An engine stop device 4 such as a near solenoid or the like is provided to stop the engine 2 via a lever 40.
1 is attached. The transmission 3 is a hydrostatic type,
The swash plate angle of the hydraulic pump can be adjusted by a lever 42 and a motor 43. Note that an encoder 44 is attached to the motor 43 so as to detect the amount of change in the swash plate angle. A load detector 45 such as a pressure switch is attached to the suction side of the grass collector 33 to detect the grass collection load based on the generation status of negative pressure.
４６は制御部で、回転数検出器３９からの信号によりエ
ンジン回転数の低下を判別する回転数判別手段４７と、
この回転数判別手段４７がエンジン回転数の低下を判別
した時に、負荷検出器４５からの信号により集草負荷が
正常か否かを判別する負荷判別手段４８とを備え、集草
負荷の正常時にはエンジン回転数が回復するようにモー
タ４３を介して変速装置３を減速動作させ、異常時には
変速装置３を中立に戻すと共に、エンジン停止装置４１
によりエンジン２を停止させて走行を止めるように構成
されている。なお、この制御部４６はマイコンその他の
手段により構成されている。Reference numeral 46 denotes a control unit, which includes a rotation speed determination means 47 for determining a decrease in engine rotation speed based on a signal from the rotation speed detector 39;
Load determining means 48 is provided for determining whether or not the grass collection load is normal based on a signal from the load detector 45 when the rotation speed determination means 47 determines that the engine speed has decreased. The transmission 3 is decelerated via the motor 43 so that the engine speed is recovered, and in the event of an abnormality, the transmission 3 is returned to neutral, and the engine stop device 41
The vehicle is configured to stop the engine 2 and stop running. Note that this control section 46 is constituted by a microcomputer or other means.
（発明の効果）
本発明は、エンジン回転数を検出する回転数検出器３９
と、集草負荷を検出する負荷検出器４５と、回転数検出
器３９からの信号によりエンジン回転数 ・の低下を判
別する回転数判別手段４７と、この回転数判別手段４７
がエンジン回転数の低下を判別した時に、負荷検出器４
５からの信号により集草負荷が正常か否かを判別する負
荷判別手段４８とを備え、集草負荷の正常時にはエンジ
ン回転数が回復するように走行速度を減速させ、異常時
には走行を停止させるようにしているので、集草負荷の
異常時に走行を止めて作業を中止する以外、常に最適な
エンジン負荷で能力を十分に発揮しながら作業を行なう
ことができ、従来の人為的判断に基く制御に比較して作
業能率が著しく向上する。またエンジン回転数の低下を
判別し、その低下時に集草負荷が正常か否か判別するよ
うにしているから、走行負荷、刈取負荷及び集草負荷の
変動を個々に判別し７て制御するものに比較し、制御系
の情報量が少なくなり、制御が容易である。(Effect of the invention) The present invention provides a rotation speed detector 39 that detects the engine rotation speed.
, a load detector 45 that detects the grass collection load, a rotation speed determination means 47 that determines a decrease in the engine rotation speed based on a signal from the rotation speed detector 39, and this rotation speed determination means 47.
load detector 4 determines that the engine speed has decreased.
Load determining means 48 determines whether or not the grass collection load is normal based on the signal from 5, and when the grass collection load is normal, the running speed is reduced so that the engine rotation speed is restored, and when it is abnormal, the running is stopped. As a result, instead of stopping the vehicle and canceling work when the grass collection load is abnormal, the work can be carried out while fully demonstrating its capacity with the optimal engine load, which eliminates the conventional control based on human judgment. Work efficiency is significantly improved compared to In addition, since it is designed to detect a decrease in engine speed and determine whether or not the grass collection load is normal when the engine speed decreases, it is possible to individually determine and control fluctuations in the running load, mowing load, and grass collection load. Compared to , the amount of information in the control system is smaller and control is easier.
図面は本発明の一実施例を示し、第１図は構成図、第２
図は側面図、第３図は流れ図である。
１・・・車体、２・・・エンジン、３・・・変速装置、
２２・・・モアー、３０・・・集草容器、３３・・・集
草機、３９・・・回転数検出器、４１・・・エンジン停
止装置、４５・・・負荷検出器、４７・・・回転数判別
手段、４８・・・負荷判別手段。The drawings show one embodiment of the present invention, with FIG. 1 being a configuration diagram and FIG.
The figure is a side view, and Figure 3 is a flow chart. 1...Vehicle body, 2...Engine, 3...Transmission,
22... Mower, 30... Grass collection container, 33... Grass collector, 39... Rotation speed detector, 41... Engine stop device, 45... Load detector, 47... - Rotation speed determining means, 48... Load determining means.
Claims (1)
、このモアー２２によって刈取られた刈草を集草容器３
０に回収する集草機３３とを設け、これら走行装置５，
８、モアー２２及び集草機３３を車体１に搭載のエンジ
ン２で駆動するようにした刈取集草装置において、エン
ジン回転数を検出する回転数検出器３９と、集草負荷を
検出する負荷検出器４５と、回転数検出器３９からの信
号によりエンジン回転数の低下を判別する回転数判別手
段４７と、この回転数判別手段４７がエンジン回転数の
低下を判別した時に、負荷検出器４５からの信号により
集草負荷が正常か否かを判別する負荷判別手段４８とを
備え、集草負荷の正常時にはエンジン回転数が回復する
ように走行速度を減速させ、異常時には走行を停止させ
るようにしたことを特徴とする刈取集草装置の負荷制御
装置。(1) A mower 22 is attached to a vehicle body 1 equipped with traveling devices 5 and 8, and grass clippings cut by the mower 22 are placed in a grass collection container 3.
A grass collector 33 for collecting grass is provided at the grass collector 0, and these traveling devices 5,
8. In the grass cutting device in which the mower 22 and the grass collector 33 are driven by the engine 2 mounted on the vehicle body 1, a rotation speed detector 39 detects the engine rotation speed and a load detection device detects the grass collection load. 45, a rotation speed determination means 47 that determines whether the engine rotation speed has decreased based on a signal from the rotation speed detector 39, and when the rotation speed determination means 47 determines that the engine rotation speed has decreased, a signal from the load detector 45 is detected. A load determining means 48 for determining whether the grass collection load is normal or not based on the signal, and when the grass collection load is normal, the running speed is decelerated so that the engine rotation speed is restored, and when it is abnormal, the running is stopped. A load control device for a grass cutting and collecting device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63122939A JPH01291716A (en) | 1988-05-18 | 1988-05-18 | Load controller for reaping and collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63122939A JPH01291716A (en) | 1988-05-18 | 1988-05-18 | Load controller for reaping and collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01291716A true JPH01291716A (en) | 1989-11-24 |
Family
ID=14848353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63122939A Pending JPH01291716A (en) | 1988-05-18 | 1988-05-18 | Load controller for reaping and collecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01291716A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010213385A (en) * | 2009-03-06 | 2010-09-24 | Kanzaki Kokyukoki Mfg Co Ltd | Axle drive device for work vehicle |
| US8424625B2 (en) | 2009-02-13 | 2013-04-23 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transaxle |
| WO2019163120A1 (en) * | 2018-02-26 | 2019-08-29 | 本田技研工業株式会社 | Work machine |
| JP2020182402A (en) * | 2019-05-07 | 2020-11-12 | 株式会社クボタ | Travel control device, travel control method and mowing machine |
| US11363756B2 (en) * | 2018-03-09 | 2022-06-21 | Honda Motor Co., Ltd. | Work machine for lessening damage resulting from an object coming into contact with work portion |
-
1988
- 1988-05-18 JP JP63122939A patent/JPH01291716A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8424625B2 (en) | 2009-02-13 | 2013-04-23 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transaxle |
| JP2010213385A (en) * | 2009-03-06 | 2010-09-24 | Kanzaki Kokyukoki Mfg Co Ltd | Axle drive device for work vehicle |
| WO2019163120A1 (en) * | 2018-02-26 | 2019-08-29 | 本田技研工業株式会社 | Work machine |
| US11363756B2 (en) * | 2018-03-09 | 2022-06-21 | Honda Motor Co., Ltd. | Work machine for lessening damage resulting from an object coming into contact with work portion |
| JP2020182402A (en) * | 2019-05-07 | 2020-11-12 | 株式会社クボタ | Travel control device, travel control method and mowing machine |
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