JPS6037481Y2 - transmission - Google Patents
transmissionInfo
- Publication number
- JPS6037481Y2 JPS6037481Y2 JP1977134920U JP13492077U JPS6037481Y2 JP S6037481 Y2 JPS6037481 Y2 JP S6037481Y2 JP 1977134920 U JP1977134920 U JP 1977134920U JP 13492077 U JP13492077 U JP 13492077U JP S6037481 Y2 JPS6037481 Y2 JP S6037481Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- transmission
- speed
- teeth
- gears
- 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
Links
Landscapes
- Transplanting Machines (AREA)
Description
【考案の詳細な説明】
この考案は変速装置に関し、さらに詳しくは、例えば乗
用型田植機の植付密度の変更を容易に行うトランスミッ
ションに適した変速装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transmission, and more particularly, to a transmission suitable for, for example, a transmission that facilitates changing the planting density of a riding rice transplanter.
従来周知の乗用型田植機においては、車体上に搭載した
エンジンの出力をトランスミッションを介して後輪、あ
るいは後輪のみに伝達し、さらに、エンジン出力の一部
が植付作業機に伝達され、圃場を走行しながら田植え作
業を行い得るように構成されている。In conventionally known riding rice transplanters, the output of the engine mounted on the vehicle body is transmitted to the rear wheels or only the rear wheels via a transmission, and a part of the engine output is further transmitted to the planting machine. It is configured so that it can perform rice planting work while traveling in the field.
このような田植機では、索引車体の走行車速の選択なら
びに植付作業機の密植、粗植の選択を行うためのトラン
スミッション(変速機)が伝達系中に組込まれており、
簡単な構成で複数段の変速が行えるものが要求されてい
る。In such a rice transplanter, a transmission is built into the transmission system to select the traveling speed of the index vehicle and to select dense or coarse planting by the planting machine.
There is a need for a device that has a simple configuration and can perform multiple speed changes.
そこでこの考案は、例えば乗用型田植機において、車速
の選択は勿論のこと、植付作業機の作業速度の選択、と
くに、苗の植付密度の選択を容易かつ、簡単に行い得る
ようにした変速装置を提供しようとするものである。Therefore, this invention has made it possible to easily and easily select, for example, the speed of the vehicle, the speed of the planting machine, and in particular the density of planting seedlings, in a riding-type rice transplanter. The aim is to provide a transmission.
以下、この考案の詳細を、乗用型田植機に適用した図示
の実施例に沿って説明する。Details of this invention will be described below with reference to an illustrated embodiment applied to a riding rice transplanter.
先ず、第1図において符号1は車体上に搭載されたエン
ジンを示し、その出力が一対のプーリ2.2間に懸けた
ベルト3によりトランスミッション10への入力軸4に
伝達される構成となっていてトランスミッション10か
らは後輪駆動軸5、前輪駆動軸6、さらには、植付作業
機への伝達軸7が導出されている。First, in FIG. 1, reference numeral 1 indicates an engine mounted on the vehicle body, and its output is transmitted to an input shaft 4 to a transmission 10 by a belt 3 suspended between a pair of pulleys 2.2. A rear wheel drive shaft 5, a front wheel drive shaft 6, and a transmission shaft 7 to a planting machine are led out from the transmission 10.
後輪駆動軸5はデフ機構51を介して後輪軸52に動力
を伝え、さらに後輪53を駆動するような伝動系を構成
している。The rear wheel drive shaft 5 constitutes a transmission system that transmits power to a rear wheel shaft 52 via a differential mechanism 51 and further drives a rear wheel 53.
また、前輪駆動軸6もデフ機構61を介して伝動軸62
に動力伝達を行い得るようになっており、前輪66と後
輪53の周速度を一致させるための歯車群63.64を
介して前輪軸65が駆動され、さらには前輪66が駆動
される伝動系を構成している。Further, the front wheel drive shaft 6 also connects to the transmission shaft 62 via the differential mechanism 61.
The front wheel axle 65 is driven via gear groups 63 and 64 to match the circumferential speeds of the front wheels 66 and the rear wheels 53, and the front wheels 66 are also driven by a power transmission. It constitutes a system.
そして、植付作業機への伝達軸7は途中接手71自在接
手72などを介して植付作業機を動かす伝達系を構成し
ている。The transmission shaft 7 to the planting machine constitutes a transmission system that moves the planting machine via an intermediate joint 71, a universal joint 72, and the like.
このような動力伝達系にエンジンの出力を伝えるトラン
スミッション10は下記構成となっている。The transmission 10 that transmits the output of the engine to such a power transmission system has the following configuration.
即ち、入力軸4と後輪駆動軸5とは平行関係にあり、入
力軸4にはリバースギヤ11と一体となっているシフト
ギヤ12がスプライン嵌合されており、このシフトギヤ
12と離れた位置には歯数の異なる2枚のギヤで構成さ
れる高速用シフトギヤ13がスプライン嵌合により配置
され、歯数の少ないギヤ13aは車速の選択のうち第2
速を受持ち、歯数の多いギヤ13bは第3速を受持って
いる。That is, the input shaft 4 and the rear wheel drive shaft 5 are in a parallel relationship, and a shift gear 12 that is integrated with a reverse gear 11 is spline-fitted to the input shaft 4. A high-speed shift gear 13 consisting of two gears with different numbers of teeth is arranged by spline fitting, and the gear 13a with a smaller number of teeth is used as the second gear of the vehicle speed selection.
The gear 13b, which is in charge of speed and has a large number of teeth, is in charge of third speed.
さらに、後輪駆動軸5には車速の第1速ギヤ14第2速
ギヤ15、第3速ギヤ16が固定されていて、第3速ギ
ヤ16は前輪駆動軸6の入力歯車67に噛合っている。Furthermore, a first speed gear 14, a second speed gear 15, and a third speed gear 16 are fixed to the rear wheel drive shaft 5, and the third speed gear 16 meshes with an input gear 67 of the front wheel drive shaft 6. ing.
17は前記リバースギヤ11とアイドラを介して噛合う
後進ギヤを示している。Reference numeral 17 indicates a reverse gear that meshes with the reverse gear 11 via an idler.
さらにまた、植付作業機への伝動軸としての従動軸7に
対しては入力軸4と平行に配置された植付作業機の駆動
軸8のギヤ群を介して動力が伝達される。Furthermore, power is transmitted to the driven shaft 7 as a transmission shaft to the planting machine via a gear group of a drive shaft 8 of the planting machine arranged parallel to the input shaft 4.
即ち、駆動軸8には前記第1速ギヤ14と同一平面内に
、植付機の動作速度を換えるための第1段ギヤ81があ
り、さらに、この第1段ギヤ81と直列に、これより歯
数の少ない第2段ギヤ82が固定されている。That is, the drive shaft 8 has a first stage gear 81 for changing the operating speed of the planting machine in the same plane as the first speed gear 14, and furthermore, in series with this first stage gear 81, there is a first stage gear 81 for changing the operating speed of the planting machine. A second stage gear 82 having fewer teeth is fixed.
前記第1段ギヤ81はその歯幅が前記第1速ギヤの歯幅
より大きく、望ましくは2倍位の歯幅をもっていて、シ
フトギヤ12が先ず第1段ギヤに噛合って駆動軸8のみ
に対し伝達関係を保ち、さらに、シフトギヤ12をその
まま送込むことにより、第1速ギヤ14ならびに第1段
ギヤ81に同時に噛合うようになっている。The first stage gear 81 has a tooth width larger than that of the first speed gear, preferably about twice the tooth width, so that the shift gear 12 first meshes with the first stage gear and only the drive shaft 8 is engaged. However, by maintaining the transmission relationship and further feeding the shift gear 12 as it is, it meshes with the first speed gear 14 and the first stage gear 81 at the same time.
第2段ギヤ82は入力軸4の高速用シフトギヤ13のう
ちギヤ13aと噛合うことができるようになっている。The second stage gear 82 can mesh with the gear 13a of the high speed shift gear 13 of the input shaft 4.
また、駆動軸8には同径にして歯数の異なる2つの変速
ギヤ83.84が固定され、これら変速ギヤ83.84
間に前記従動軸7にスプライン嵌合された2枚の一体の
植付密度の切換ギヤ73が位置し、これは同径にして歯
数の少ない第1段ギヤ73a1同径にして歯数の多いい
第2段ギヤ73bによって構成されている。Further, two speed change gears 83.84 having the same diameter and different numbers of teeth are fixed to the drive shaft 8, and these speed change gears 83.84
Two integrated switching gears 73 with a planting density spline-fitted to the driven shaft 7 are located between them, and a first stage gear 73a1 with the same diameter and a small number of teeth has the same diameter and a small number of teeth. It is composed of a large number of second stage gears 73b.
したがって、変速ギヤ83.84に対する切換ギヤ73
a、 73 bのギヤリングの組合せにより植付密
度を密〜粗に選択することができる。Therefore, the switching gear 73 for the transmission gear 83,84
The planting density can be selected from dense to coarse by combining the gearings a and 73b.
即ち、駆動軸8に設けた2つの同径にして歯数の異なる
83,84と、従動軸にスプライン嵌合されている同径
にして歯数の異なる植付密度の切゛換ギヤ73a、73
bによって構成される切換ギヤ73によって、苗の植付
密度選択用トランスミッション100が構成されている
。That is, two gears 83 and 84 with the same diameter and different numbers of teeth are provided on the drive shaft 8, and a switching gear 73a with the same diameter and different numbers of teeth is spline-fitted to the driven shaft. 73
The switching gear 73 constituted by b constitutes a transmission 100 for selecting the planting density of seedlings.
例えば、変速ギヤ83.84の歯数をそれぞれr1畝J
%′17枚ヨと定め、切換ギヤ73a、73bの歯数の
数を11畝ヨ、」7枚ヨと定めると、下記の組合せによ
り3.377L当りの植付株数を60株、7哨、8@の
3通りに選択することができる。For example, the number of teeth of the transmission gear 83 and 84 is r1 ridge J.
If the number of teeth of the switching gears 73a and 73b is set as 11 teeth and 7 teeth, the number of plants planted per 3.377L will be 60 plants, 7 teeth, You can choose from three options: 8@.
即ち、第3図イのように、変速ギヤ83と切換ギヤ73
bが噛合った状態では60株/3.3dとなり、同口の
如く変速ギヤ84と切換ギヤ73bの噛合せでは701
!/3.3d、さらに変速ギヤ84と切換ギヤ73aの
噛合せでは8(M/3.3dの植付密度となる。That is, as shown in FIG. 3A, the transmission gear 83 and the switching gear 73
When b is in mesh, it is 60 stocks/3.3d, and when the transmission gear 84 and switching gear 73b are in mesh as in the same mouth, it is 701.
! /3.3d, and further meshing of the transmission gear 84 and the switching gear 73a results in a planting density of 8 (M/3.3d).
次に、車輪に対する動力伝達系についてその変速の実際
を説明する。Next, the actual speed change of the power transmission system for the wheels will be explained.
先ず、入力軸4にあるシフトギヤ12を第1速ギヤ14
に噛合せると、最大トルクの変速となり、また、高速用
シフトギヤ13を第2速15、あるいは第3速ギヤ16
に噛合せることにより車輪の駆動系を高速回転させる。First, shift the shift gear 12 on the input shaft 4 to the first gear 14.
When engaged, the maximum torque is achieved, and the high-speed shift gear 13 is shifted to the second gear 15 or the third gear 16.
By engaging the wheels, the wheel drive system rotates at high speed.
この第3速のギヤリングは、路上走行時において使用さ
れるもので、圃場における植付作業時には使用されない
。This third speed gearing is used when driving on the road, and is not used during planting work in the field.
とくに、第1速ギヤ14に対しシフトギヤ12を噛合せ
る過程において、シフトギヤ12が第1速ギヤ81に噛
合ってから第1速ギヤに噛合い、第1速ギヤに噛合う際
は第1段ギヤ81に噛合う構成であるから、乗用型田植
機の走行に先立って、植付作業機を駆動することができ
る。In particular, in the process of meshing the shift gear 12 with the first speed gear 14, the shift gear 12 meshes with the first speed gear 81 and then meshes with the first speed gear, and when meshing with the first speed gear, the first speed gear Since it is configured to mesh with the gear 81, the planting machine can be driven before the riding rice transplanter starts traveling.
したがって、植付作業機を駆動しながらの各部の点検に
有効であり、クラッチ操作も必要としない。Therefore, it is effective for inspecting each part while driving the planting machine, and does not require clutch operation.
また、圃場における苗の植付密度を選択する場合には、
変速ギヤ83.84と切換ギヤ73a。In addition, when selecting the planting density of seedlings in the field,
Transmission gears 83, 84 and switching gear 73a.
73bの組合せを変えることにより植付密度の変更を行
う。The planting density is changed by changing the combination of 73b.
トランスミッション100を構成するギヤの数が多けれ
ば多い程、多段階に密度変更が可能であるが実用上は2
群4枚の歯車で十分である。The greater the number of gears that make up the transmission 100, the more the density can be changed in multiple stages.
A group of four gears is sufficient.
なお、本考案は、上記実施例の乗用型田植機に限らず走
行部の走行速度とは別に、作業部(従動軸)の変速段数
を複数段に変速する走行作業機等に広く適用できるもの
である。The present invention is applicable not only to the riding-type rice transplanter of the above embodiment, but also to a wide variety of traveling work machines, etc., in which the number of gears of the working part (driven shaft) is changed to multiple stages, independent of the traveling speed of the traveling part. It is.
以上の説明から明らかなように、この考案の変速装置に
よれば、駆動軸側と従動軸側の一方の軸に、同径にして
歯数の異なる複数枚の変速ギヤを設け、他方の軸に、同
じく同径にして歯数の異なる複数枚の切換ギヤを一体的
に軸上を移動可能に設け、前記切換ギヤをして前記変速
ギヤに選択咬合によって従動軸の変速段数を多くするよ
うにしたから、ギヤ枚数を少なくした簡単な構成で容易
に多段の変速を行うことができ、しかも、その変速操作
は簡単、容易であり、広汎な用途を有するものである。As is clear from the above description, according to the transmission device of this invention, a plurality of transmission gears having the same diameter and different numbers of teeth are provided on one of the drive shaft and the driven shaft, and A plurality of switching gears having the same diameter and different numbers of teeth are provided so as to be integrally movable on the shaft, and the switching gears are selectively engaged with the transmission gear to increase the number of gears of the driven shaft. Therefore, it is possible to easily perform multi-speed shifting with a simple configuration with a reduced number of gears, and the shifting operation is simple and easy, and has a wide range of uses.
【図面の簡単な説明】
図は、この考案を乗用型田植機に適用した場合を示し、
第1図は伝動駆動系を示したギヤ列説明図、第2図はト
ランスミッションの断面図、第3図は植付機における植
付密度選択時のギヤ咬合せ状態を示す説明図である。
図中記号、7は従動軸、8は駆動軸、73a。
73bは切換ギヤ、83.84は変速ギヤを示す。[Brief explanation of the drawing] The figure shows the case where this invention is applied to a riding type rice transplanter.
FIG. 1 is an explanatory diagram of a gear train showing a transmission drive system, FIG. 2 is a sectional view of the transmission, and FIG. 3 is an explanatory diagram showing a gear engagement state when selecting planting density in a planting machine. In the figure, symbol 7 is a driven shaft, 8 is a drive shaft, and 73a. 73b is a switching gear, and 83.84 is a transmission gear.
Claims (1)
なる複数枚の変速ギヤを設け、他方の軸に、同じく同径
にして歯数の異なる複数枚の切換ギヤを一体的に軸上を
移動可能に設け、前記切換ギヤをして前記変速ギヤに咬
合可能に設けたことを特徴とする変速装置。Multiple transmission gears with the same diameter and different numbers of teeth are installed on one of the drive and driven shafts, and multiple switching gears with the same diameter and different numbers of teeth are integrated on the other shaft. 1. A transmission device, characterized in that the transmission gear is provided movably on a shaft, and the switching gear is provided so as to be able to engage with the transmission gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977134920U JPS6037481Y2 (en) | 1977-10-07 | 1977-10-07 | transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977134920U JPS6037481Y2 (en) | 1977-10-07 | 1977-10-07 | transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5461023U JPS5461023U (en) | 1979-04-27 |
JPS6037481Y2 true JPS6037481Y2 (en) | 1985-11-08 |
Family
ID=29104748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1977134920U Expired JPS6037481Y2 (en) | 1977-10-07 | 1977-10-07 | transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6037481Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5516576Y2 (en) * | 1974-02-26 | 1980-04-18 |
-
1977
- 1977-10-07 JP JP1977134920U patent/JPS6037481Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5461023U (en) | 1979-04-27 |
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