JPS6244196Y2 - - Google Patents
Info
- Publication number
- JPS6244196Y2 JPS6244196Y2 JP1982099056U JP9905682U JPS6244196Y2 JP S6244196 Y2 JPS6244196 Y2 JP S6244196Y2 JP 1982099056 U JP1982099056 U JP 1982099056U JP 9905682 U JP9905682 U JP 9905682U JP S6244196 Y2 JPS6244196 Y2 JP S6244196Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- case
- valve
- transmission case
- rotary valve
- 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
- 230000005540 biological transmission Effects 0.000 claims description 99
- 239000003921 oil Substances 0.000 claims description 28
- 239000012208 gear oil Substances 0.000 claims description 5
- 230000013011 mating Effects 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
- F16H61/0265—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
Description
【考案の詳細な説明】
本考案は、ミツシヨンケースに軸架された変速
用伝動軸夫々に敷設した変速用シリンダに対する
変速操作用油路を、ケース壁及びそれに付帯の部
材にわたつて形成し、前記ミツシヨンケース内の
ギアーオイルを前記変速操作用油路に選択的に供
給するバルブとポンプを設けた油圧式パワートラ
ンスミツシヨンケースの構造に関する。[Detailed description of the invention] The present invention forms oil passages for transmission operation for the transmission cylinders installed on each transmission shaft mounted on the transmission case, extending through the case wall and the members attached thereto. The present invention relates to a structure of a hydraulic power transmission case including a valve and a pump for selectively supplying gear oil in the transmission case to the transmission oil passage.
この種のミツシヨンケースでは、従来より、例
えば実開昭56−165148号公報に示されているよう
に、ミツシヨンケースとバルブケースとが全く
別々に形成され、かつ、ミツシヨンケースのケー
ス壁外面側にバルブケースが取付けられていた。 Conventionally, in this type of transmission case, the transmission case and the valve case are formed completely separately, and the case wall of the transmission case is A valve case was attached to the outside.
これは、一般に複雑な形状のバルブを大きなミ
ツシヨンケースと一体に構成するのは、機械加工
を行う上で不利であるとの考えから、バルブとミ
ツシヨンケースは別々に加工され、後で組立てら
れていたものである。 This is because the idea is that it is generally disadvantageous for machining to construct valves with complex shapes and large transmission cases, so the valves and transmission cases are machined separately and assembled later. It used to be.
ところが、このようなバルブをミツシヨンケー
スに組付けるにあたり、ミツシヨンケース外面と
付帯部材との合わせ面に形成される油路だけで
は、バルブのポートをミツシヨンケース内の変速
用シリンダに連通させることはできず、上記従来
例のようにケース壁肉厚内部を通る油路を設けな
ければならないという、機械加工上の複雑さを招
く欠点があつた。 However, when assembling such a valve into a transmission case, it is difficult to connect the port of the valve to the transmission cylinder inside the transmission case using only the oil passage formed on the mating surface between the outer surface of the transmission case and the accessory member. However, unlike the conventional example described above, it is necessary to provide an oil passage that passes through the thick interior of the case wall, resulting in complicated machining.
また、バルブケースがミツシヨンケース外にあ
るため、バルブからの戻り油をミツシヨンケース
内に直接戻すということもできず、戻り油を返す
ための流路の加工も必要である。 Furthermore, since the valve case is located outside the transmission case, the oil returned from the valve cannot be returned directly into the transmission case, and it is also necessary to process a flow path to return the return oil.
前記バルブをケースごとミツシヨンケース内に
装着すれば、バルブからの戻り油をミツシヨンケ
ース内に直接的に返すことは可能であるが、狭い
ミツシヨンケース内でのバルブの取付け作業や配
管作業が複雑となり、また、外部からバルブを操
作するための操作具や、ミツシヨンケース外面と
付帯部材との合わせ面に形成される油路に対する
バルブポートの芯合わせ作業などが複雑となり、
殊に、バルブがスプールバルブである場合には、
スプールの動きに連動してミツシヨンケース壁を
貫いて摺動する部材があつて、そのためのシール
構造も複雑となる不都合もあつた。 If the above-mentioned valve is installed in the transmission case together with the case, it is possible to directly return the return oil from the valve into the transmission case, but it is difficult to install the valve and piping inside the narrow transmission case. In addition, the operation tool for operating the valve from the outside and the work of aligning the valve port with the oil passage formed on the mating surface of the outer surface of the mission case and the accessory parts become complicated.
Especially if the valve is a spool valve,
There is a member that slides through the wall of the mission case in conjunction with the movement of the spool, and the sealing structure for that member is also inconvenient.
本考案の目的は、ミツシヨンケースの構造なら
びに加工の複雑さを招くことを避けながら、ミツ
シヨンケースとバルブとの一体化を図り、構造な
らびに加工の簡素化と、芯出し作業を含めての組
付け分解作業の容易化を図る点にある。 The purpose of this invention is to integrate the transmission case and the valve while avoiding complication in the structure and processing of the transmission case, simplify the structure and processing, and simplify the process including centering work. The purpose is to facilitate assembly and disassembly work.
上記目的を達成するための本考案の特徴とする
構成は、変速用シリンダを連設した変速用伝動軸
を、左右一対の分割ケース部分を組み合わせて構
成したミツシヨンケース内で、ケース分割面の左
右にわたつて軸架するとともに、前記ミツシヨン
ケース内に貯溜されているギアーオイルを前記変
速用伝動軸に形成された油路を介して前記変速用
シリンダに選択的に供給するバルブとポンプとを
設けてある油圧式パワートランスミツシヨンケー
スの構造において、前記バルブを、その回転軸芯
が前記伝動軸の軸芯と平行する状態で位置された
ロータリバルブから構成するとともに、そのロー
タリバルブを内嵌する筒状弁室を、前記一方の分
割ケース部分のケース内面側に一体形成し、さら
に、前記筒状弁室を形成した一方の分割ケース部
分には，前記ロータリバルブの回転軸芯に直交す
る方向の外側面と平行する方向の外側面との両外
側面と、それらの両外側面夫々に対向位置させた
各付帯部材の対向面との間の夫々の合わせ面に、
前記ミツシヨンケース内のギアーオイル貯溜部を
前記ポンプおよびロータリバルブを介して前記変
速用シリンダへの油路に連通接続する変速操作用
油路を形成してある点にあり、かかる構成から次
の作用ならびに効果を奏する。 The characteristic configuration of the present invention to achieve the above object is that a transmission shaft for transmission connected with a transmission cylinder for transmission is housed in a transmission case constructed by combining a pair of left and right divided case parts, and a transmission shaft for transmission with a transmission cylinder for transmission is installed in a transmission case on a case division surface. A valve and a pump that are mounted on the left and right shafts and that selectively supply gear oil stored in the transmission case to the transmission cylinder through an oil passage formed in the transmission transmission shaft. In the structure of a hydraulic power transmission case provided with A cylindrical valve chamber to be fitted is integrally formed on the case inner surface side of the one divided case portion, and further, a cylindrical valve chamber that is fitted into the one divided case portion in which the cylindrical valve chamber is formed is provided with a cylindrical valve chamber that is perpendicular to the rotation axis of the rotary valve. At the respective mating surfaces between the outer surface in the direction of the direction of rotation and the outer surface in the parallel direction, and the opposing surface of each accessory member positioned opposite to each of the outer surfaces,
A gear oil reservoir in the transmission case is formed with a transmission oil passage that communicates with the oil passage to the transmission cylinder via the pump and the rotary valve, and from this configuration, the following can be achieved. It works and produces effects.
(イ) バルブの弁室をミツシヨンケースと一体に形
成しようとした場合、弁室の周方向複数位置な
らびに軸線方向の複数位置にポートを形成し、
かつ、それらのポートを他装置に連通させる油
路を形成する必要があることから、それらのポ
ートおよび油路は立体的な配置構造となつて、
壁面の肉厚内に形成しようとすれば機械加工の
困難な複雑な構造となり易いが、本考案では、
ミツシヨンケースの一側面だけではなく、ロー
タリバルブの回転軸芯に直交する方向と沿う方
向との両側面に、それらの各側面と対向する付
帯部材を配置して、各側面と付帯部材との間の
合わせ面の利用により、複雑な機械加工を要す
ることなく立体的な油路を形成し、その油路に
連ねて、単に壁面を垂直に貫く孔加工を施すだ
けで各ポートを構成できる。従つて、ミツシヨ
ンケース壁の肉厚内でその壁面に沿つて複雑な
形状の油路やポートを機械加工するという、加
工上の困難さを伴うことなくミツシヨンケース
に対してバルブを一体化した状態で組込むこと
ができた。(a) If the valve chamber of the valve is to be formed integrally with the transmission case, ports should be formed at multiple positions in the circumferential direction and at multiple positions in the axial direction of the valve chamber,
In addition, since it is necessary to form oil passages that communicate these ports with other devices, these ports and oil passages are arranged in a three-dimensional structure.
If it were to be formed within the wall thickness, it would likely result in a complicated structure that would be difficult to machine, but in this invention,
Ancillary members facing each side are arranged not only on one side of the transmission case, but also on both sides in a direction perpendicular to and along the axis of rotation of the rotary valve, so that each side and the ancillary member are connected. By using the makeshift surfaces, three-dimensional oil passages can be formed without the need for complex machining, and each port can be configured by simply drilling holes perpendicular to the wall surface in line with the oil passages. Therefore, the valve can be integrated into the transmission case without the machining difficulties of machining complex-shaped oil passages and ports along the wall thickness of the transmission case. I was able to install it in this state.
(ロ) 上記(イ)のように、バルブをミツシヨンケース
と一体化したものであるから、ミツシヨンケー
スの分解やバルブの保守点検に際して、ミツシ
ヨンケースに対するバルブの組付け作業が極め
て容易に行える。つまり、バルブの弁室がミツ
シヨンケースと別体に構成されていれば、分解
後、再度組付ける際に、バルブの軸芯やポート
の位置などを厳密に芯出してミツシヨンケース
に取付けなければならないが、ミツシヨンケー
スとバルブ弁室部分が一体化されていること
で、単に弁体を弁室に嵌入させるだけの芯出し
不要な簡単な作業で組付け作業を行うことがで
きる。(b) As mentioned in (a) above, since the valve is integrated with the transmission case, it is extremely easy to assemble the valve to the transmission case when disassembling the transmission case or performing valve maintenance and inspection. I can do it. In other words, if the valve chamber of the valve is configured separately from the transmission case, when reassembling it after disassembly, the axis of the valve and the position of the ports must be precisely centered before installing it to the transmission case. However, since the transmission case and the valve chamber part are integrated, assembly can be performed by simply inserting the valve element into the valve chamber, which does not require centering.
(ハ) また、弁体自体も、弁室の両端側に移動用ス
ペースの必要なスプールバルブではなく、ロー
タリバルブであるから、構造上のコンパクト化
を図ることが可能であるとともに、弁体もしく
はそれに連動の部材がミツシヨンケース壁を貫
いて軸線方向で摺動するという構造でもないの
で、シール構造も割合に簡素な構造で済む。(c) Also, since the valve body itself is a rotary valve rather than a spool valve that requires space for movement on both ends of the valve chamber, it is possible to make the structure more compact, and the valve body or Since the interlocking member does not have a structure in which it slides in the axial direction through the wall of the mission case, the seal structure can also be relatively simple.
以下、本考案の実施例を例示図に基いて詳述す
る。 Hereinafter, embodiments of the present invention will be described in detail based on illustrative drawings.
圃場の植立茎稈を引起して刈取り、その刈取茎
稈を機体後方に搬送しながら横倒れ姿勢に姿勢変
更してフイードチエーン１に受渡す刈取部２、及
び、刈取茎稈をフイードチエーン１で挾持搬送し
ながら脱穀処理する脱穀装置３を、クローラ走行
装置４を装備すると共に操縦部５を設けた走行車
体に連設し、コンバインを構成してある。 A reaping unit 2 raises and reaps planted stem culms in the field, transports the cut stem culms to the rear of the machine, changes its posture to a sideways posture, and transfers them to the feed chain 1, and feeds the cut stem culms. A threshing device 3 for threshing while being held and conveyed by a chain 1 is connected to a traveling vehicle body equipped with a crawler traveling device 4 and a control section 5 to constitute a combine harvester.
前記走行装置４を駆動するに、エンジン６から
の動力を、副変速用の３段変速自在なギア式変速
機構７、及び、主変速用の前進３段及び後進１段
に変速自在な油圧式パワートランスミツシヨン８
を介し、全体として前進９段及び後進３段に変速
自在に伝達するように構成してあり、次に詳述す
る。 To drive the traveling device 4, the power from the engine 6 is transferred to a gear-type transmission mechanism 7 that can freely change three speeds for the auxiliary transmission, and a hydraulic type that can freely change the speeds to three forward speeds and one reverse speed for the main speed change. power transmission 8
As a whole, the transmission is configured to be able to freely change gears to nine forward speeds and three reverse speeds, and will be described in detail below.
即ち、前記ミツシヨンケース９を左右一対の分
割ケース部分９Ａ，９Ｂの組合わせによつて構成
し、このミツシヨンケース９に、前記エンジン６
に連動の入力軸１０、走行変速用の第１ないし第
３伝動軸１１，１２，１３、操向クラツチ１４，
１４を付設したクラツチ軸１５、左右走行駆動軸
１６，１６、並びに、刈取部２及び脱穀装置３へ
の伝動用の第４伝動軸１７と出力軸１８夫々を軸
架し、前記入力軸１０と第１伝動軸１１との間に
前記ギア式副変速機構７を設け、他方、第４伝動
軸１７と出力軸１８との間に３段変速自在なギア
式変速機構１９を設けてある。前記第２伝動軸１
２に変速用の第１及び第２油圧クラツチ２０，２
１を、かつ、第３伝動軸１３に第３及び第４油圧
クラツチ２２，２３を夫々付設すると共に、それ
らクラツチ２０，２１，２２，２３夫々の入り操
作によつて一体回転自在に連結される伝動ギア２
４……を第２及び第３伝動軸１２，１３夫々に遊
嵌し、前記第２及び第３伝動軸１２，１３に、そ
の長手方向一端側から、前記第１ないし第４油圧
クラツチ２０，２１，２２，２３夫々のシリンダ
２０ａ，２１ａ，２２ａ，２３ａに連なる油路
R1を穿設形成してある。前記伝動軸１１……の
軸芯に沿つた、ミツシヨンケース９の対向壁９
ａ，９ａのうちの一方において、上側に筒状弁室
としてのバルブ収容室２５を、そして下側にフイ
ルター収容室２６を夫々一体的に連なる状態で形
成し、前記バルブ収容室２５にロータリバルブ２
７を設けると共にフイルター収容室２６にオイル
フイルター２８を設け、前記入力軸１０の他端部
に一体回転自在に取付けた油圧ポンプ２９と前記
両収容室２５，２６、並びに、フイルター収容室
２６とミツシヨンケース９の下部夫々を、付帯部
材としての第１油圧プレート３０とミツシヨンケ
ース９外面との合わせ面に形成した連通路R2，
R3，R4を介して連通接続し、かつ、バルブ収容
室２５と前記第２及び第３伝動軸１２，１３に形
成した油路R1……夫々とを、前記一方の対向壁
９ａの外面とそれに取付けた付帯部材としての第
２油圧プレート３１との合わせ面からミツシヨン
ケース９の角部壁及び前記第１油圧プレート３０
とミツシヨンケース９との合わせ面に連なる変速
操作用油路R5……を介して連通接続してある。 That is, the transmission case 9 is constructed by a combination of a pair of left and right split case parts 9A and 9B, and the engine 6 is attached to the transmission case 9.
an input shaft 10 interlocked with the driving gear, first to third transmission shafts 11, 12, 13 for traveling speed change, a steering clutch 14,
14, a left and right running drive shaft 16, 16, a fourth transmission shaft 17 for transmitting power to the reaping section 2 and the threshing device 3, and an output shaft 18, respectively, are mounted on a shaft, and the input shaft 10 and The gear-type auxiliary transmission mechanism 7 is provided between the first transmission shaft 11 and the gear-type transmission mechanism 19, which is capable of shifting in three stages, is provided between the fourth transmission shaft 17 and the output shaft 18. Said second transmission shaft 1
2, first and second hydraulic clutches 20, 2 for gear shifting;
1, and third and fourth hydraulic clutches 22 and 23 are attached to the third power transmission shaft 13, respectively, and are coupled to be integrally rotatable by engaging the clutches 20, 21, 22, and 23, respectively. Transmission gear 2
4... are loosely fitted onto the second and third transmission shafts 12, 13, respectively, and the first to fourth hydraulic clutches 20, Oil passages connected to cylinders 20a, 21a, 22a, 23a of 21, 22, 23, respectively
R 1 is drilled and formed. The opposing wall 9 of the transmission case 9 along the axis of the transmission shaft 11...
In one of a and 9a, a valve accommodating chamber 25 as a cylindrical valve chamber is formed on the upper side, and a filter accommodating chamber 26 is formed on the lower side in a continuous state, and a rotary valve is installed in the valve accommodating chamber 25. 2
7, an oil filter 28 is provided in the filter housing chamber 26, a hydraulic pump 29 is integrally rotatably attached to the other end of the input shaft 10, both the housing chambers 25 and 26, and the oil filter 28 is installed in the filter housing chamber 26. A communication path R 2 is formed in each lower part of the transmission case 9 at the mating surface of the first hydraulic plate 30 as an incidental member and the outer surface of the transmission case 9,
An oil passage R 1 which is connected to the valve housing chamber 25 and the second and third transmission shafts 12 and 13 via R 3 and R 4 is connected to the one opposing wall 9a. The corner wall of the mission case 9 and the first hydraulic plate 30 are separated from the mating surface between the outer surface and the second hydraulic plate 31 as an incidental member attached thereto.
and the transmission case 9 are connected to each other via an oil passage R 5 for operating the transmission connected to the mating surface of the transmission case 9 and the transmission case 9 .
前記バルブ収容室２５は、前記対向壁９ａ，９
ａに直交する対向壁９ｂ，９ｂにわたらせて形成
され、その長手方向中央より一方側において、前
記伝動軸１１……と平行な軸芯Ｐ周りで回転自在
に筒状のロータリバルブ２７を設け、そして、他
方側にアキユームレータ３２を設け、変速操作時
夫々の初期において、ポンプ２９からの圧油をア
キユームレータ３２に吸収させ、油圧クラツチ２
０，２１，２２，２３が急激に入り操作されるこ
とを防止するように構成してある。 The valve housing chamber 25 is located between the opposing walls 9a and 9.
A cylindrical rotary valve 27 is provided on one side from the longitudinal center of the opposing walls 9b, 9b orthogonal to a, and is rotatable around an axis P parallel to the transmission shaft 11. An accumulator 32 is provided on the other side, and the pressure oil from the pump 29 is absorbed by the accumulator 32 at the initial stage of each speed change operation, and the hydraulic clutch 2
0, 21, 22, and 23 are configured to prevent sudden entry and operation.
ロータリバルブ２７に一体回転自在に連結され
た変速操作具３３のボス部３３ａにボールストツ
パー３４を設け、第１油圧プレート３０の外面に
取付けた板部材３５に、バルブ２７の回転軸芯Ｐ
を中心とする円弧軌跡上に所定間隔をへだてて係
入用凹部３６……を設け、中立位置及び変速操作
位置夫々において摩擦固定するように構成されて
いる。 A ball stopper 34 is provided on the boss portion 33a of the speed change operating tool 33 which is integrally and rotatably connected to the rotary valve 27.
Engagement recesses 36 are provided at predetermined intervals on an arcuate locus centered on , and are configured to be frictionally fixed at each of the neutral position and the shift operation position.
図中３７はリリーフ弁を示し、リリーフ圧設定
用のスプリング３８と弁体３９とを、ミツシヨン
ケース９内に形成した収容室４０内に設け、前記
油圧クラツチ２０，２１，２２，２３の入り操作
状態においてのみ、ポンプ２９からの圧油をこの
リリーフ弁３７を介し、潤滑及び冷却のために油
圧クラツチ２０，２１，２２，２３に供給するよ
うに構成してあり、上記シリンダ２０ａ，２１
ａ，２２ａ，２３ａに対する油圧回路を参考のた
めに第５図に示しておく。 In the figure, numeral 37 indicates a relief valve, and a spring 38 and a valve body 39 for setting the relief pressure are provided in a housing chamber 40 formed in the transmission case 9, and the hydraulic clutches 20, 21, 22, 23 are inserted into the housing chamber 40. Only in the operating state, pressure oil from the pump 29 is supplied to the hydraulic clutches 20, 21, 22, 23 for lubrication and cooling through the relief valve 37, and the cylinders 20a, 21
The hydraulic circuits for a, 22a, and 23a are shown in FIG. 5 for reference.
パワートランスミツシヨン８を構成するに、例
えば、伝動軸１２，１３に伝動ギア２４を遊嵌す
ると共に、伝動軸１２，１３内に、それと伝動ギ
ア２４を連結あるいは連結解除するための連結ピ
ンを径方向に出退自在に設け、かつ、その連結ピ
ンを出退操作するためのシリンダを付設するよう
にしても良い。 To configure the power transmission 8, for example, a transmission gear 24 is loosely fitted to the transmission shafts 12, 13, and a connecting pin is provided in the transmission shafts 12, 13 for connecting or disconnecting the transmission gear 24. It may be provided so as to be movable in the radial direction, and may be provided with a cylinder for operating the connecting pin to move in and out.
本考案は、コンバインに限らず、トラクタや運
搬車等各種のものにおける油圧式パワートランス
ミツシヨンケースに適用できる。 The present invention can be applied not only to combines but also to hydraulic power transmission cases in various types of equipment such as tractors and transport vehicles.
尚、実用新案登録請求の範囲の項に図面との対
照を便利にする為に符号を記すが、該記入により
本考案は添付図面の構造に限定されるものではな
い。 Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.
図面は本考案に係る油圧式パワートランスミツ
シヨンケースの構造の実施例を示し、第１図はコ
ンバインの全体側面図、第２図はミツシヨンケー
スの縦断面図、第３図は第２図の−線断面
図、第４図は第３図の要部の側面断面図、第５図
は第２油圧プレートと共に示す油圧回路図であ
る。
９……ミツシヨンケース、９Ａ，９Ｂ……分割
ケース部分、１２，１３……伝動軸、２０ａ……
シリンダ、２７……ロータリバルブ、９ａ，９ｂ
……ケース壁、R1……油路、R5……変速操作用
油路、２９……ポンプ、３０，３１……付帯部
材。
The drawings show an embodiment of the structure of the hydraulic power transmission case according to the present invention, in which FIG. 1 is an overall side view of the combine harvester, FIG. 2 is a longitudinal sectional view of the transmission case, and FIG. 3 is FIG. 2. FIG. 4 is a side sectional view of the main part of FIG. 3, and FIG. 5 is a hydraulic circuit diagram shown together with the second hydraulic plate. 9...Mission case, 9A, 9B...Divided case part, 12, 13...Transmission shaft, 20a...
Cylinder, 27...Rotary valve, 9a, 9b
...Case wall, R1 ...Oil passage, R5 ...Oil passage for speed change operation, 29...Pump, 30, 31...Ancillary members.
Claims (1)
１２，１３を、左右一対の分割ケース部分９Ａ，
９Ｂを組み合わせて構成したミツシヨンケース９
内で、ケース分割面の左右にわたつて軸架すると
ともに、前記ミツシヨンケース９内に貯溜されて
いるギアーオイルを前記変速用伝動軸１２，１３
に形成された油路R1を介して前記変速用シリン
ダ２０ａに選択的に供給するバルブとポンプ２９
とを設けてある油圧式パワートランスミツシヨン
ケースの構造において、前記バルブを、その回転
軸芯が前記伝動軸１２，１３の軸芯と平行する状
態で位置されたロータリバルブ２７から構成する
とともに、そのロータリバルブ２７を内嵌する筒
状弁室２５を、前記一方の分割ケース部分９Ａの
ケース内面側に一体形成し、さらに、前記筒状弁
室２５を形成した一方の分割ケース部分９Ａに
は、前記ロータリバルブ２７の回転軸芯に直交す
る方向の外側面と平行する方向の外側面との両外
側面と、それらの両外側面夫々に対向位置させた
各付帯部材３０，３１の対向面との間の夫々の合
わせ面に、前記ミツシヨンケース９内のギアーオ
イル貯溜部を前記ポンプ２９およびロータリバル
ブ２７を介して前記変速用シリンダ２０ａへの油
路R1に連通接続する変速操作用油路R5を形成し
てある油圧式パワートランスミツシヨンケースの
構造。 The transmission shafts 12 and 13 for transmission connected with the cylinder 20a for transmission are connected to a pair of left and right divided case parts 9A,
Mission case 9 configured by combining 9B
The gear oil stored in the transmission case 9 is connected to the gear transmission shafts 12 and 13 on the left and right sides of the case dividing surface.
A valve and a pump 29 that selectively supply the transmission cylinder 20a through an oil passage R1 formed in the
In the structure of a hydraulic power transmission case, the valve is constituted by a rotary valve 27 whose rotation axis is parallel to the axes of the transmission shafts 12 and 13, and A cylindrical valve chamber 25 into which the rotary valve 27 is fitted is integrally formed on the case inner surface side of the one divided case portion 9A, and furthermore, the one divided case portion 9A in which the cylindrical valve chamber 25 is formed is , both outer surfaces of the rotary valve 27 in a direction perpendicular to the axis of rotation and an outer surface in a direction parallel to the rotary valve 27, and opposing surfaces of each of the additional members 30 and 31 located opposite to these outer surfaces, respectively. A gear oil storage section in the transmission case 9 is connected to the oil passage R 1 to the transmission cylinder 20a via the pump 29 and the rotary valve 27 for transmission operation. Structure of a hydraulic power transmission case with oil passage R5 formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982099056U JPS593056U (en) | 1982-06-29 | 1982-06-29 | Structure of hydraulic power transmission case |
| KR2019830003837U KR870001340Y1 (en) | 1982-06-29 | 1983-04-30 | A structure of hydraulic system power transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982099056U JPS593056U (en) | 1982-06-29 | 1982-06-29 | Structure of hydraulic power transmission case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS593056U JPS593056U (en) | 1984-01-10 |
| JPS6244196Y2 true JPS6244196Y2 (en) | 1987-11-19 |
Family
ID=30234910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982099056U Granted JPS593056U (en) | 1982-06-29 | 1982-06-29 | Structure of hydraulic power transmission case |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS593056U (en) |
| KR (1) | KR870001340Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4328127B2 (en) * | 2003-05-22 | 2009-09-09 | ヤンマー株式会社 | Axle support structure of work equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4888623A (en) * | 1972-02-15 | 1973-11-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039578Y2 (en) * | 1980-05-10 | 1985-11-27 | 株式会社クボタ | Valve mounting structure for hydraulic power transmission |
-
1982
- 1982-06-29 JP JP1982099056U patent/JPS593056U/en active Granted
-
1983
- 1983-04-30 KR KR2019830003837U patent/KR870001340Y1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4888623A (en) * | 1972-02-15 | 1973-11-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR870001340Y1 (en) | 1987-04-03 |
| KR840006211U (en) | 1984-11-30 |
| JPS593056U (en) | 1984-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6487924B2 (en) | Transmission assembly for working vehicles | |
| US10167937B2 (en) | Modular hydrostatic transmission | |
| JPS6039564Y2 (en) | Automotive gear transmission | |
| JPS6244196Y2 (en) | ||
| JPS6127366A (en) | Transmission gear for agricultural tractor | |
| JPS6230611Y2 (en) | ||
| JP4568807B2 (en) | Pump device | |
| JP3027343B2 (en) | Hydraulic torque amplifier and power steering system for vehicle incorporating the same | |
| JPH0755401Y2 (en) | Transmission oil passage structure | |
| JP6803263B2 (en) | Work vehicle | |
| JPH0447474Y2 (en) | ||
| JP2505450Y2 (en) | Transmission structure of tractor | |
| KR102364511B1 (en) | Transmission for work | |
| JPS6239303B2 (en) | ||
| JPS6124762Y2 (en) | ||
| JPH0537081Y2 (en) | ||
| JPS6229299Y2 (en) | ||
| JPH09315327A (en) | Rack and pinion type power steering device | |
| JPH0642127Y2 (en) | Transmission mechanism of tractor | |
| JPS6328007Y2 (en) | ||
| JPH0115533Y2 (en) | ||
| JPS6342198Y2 (en) | ||
| JPS5918179Y2 (en) | Hydraulic clutch type transmission device for agricultural tractors, etc. | |
| JPS5917298B2 (en) | Transmission devices for tractors, etc. | |
| JP3491364B2 (en) | Connection structure of hydraulic supply device |