JPS63152751A - Hydraulically operated gear transmission - Google Patents

Hydraulically operated gear transmission

Info

Publication number
JPS63152751A
JPS63152751A JP61302369A JP30236986A JPS63152751A JP S63152751 A JPS63152751 A JP S63152751A JP 61302369 A JP61302369 A JP 61302369A JP 30236986 A JP30236986 A JP 30236986A JP S63152751 A JPS63152751 A JP S63152751A
Authority
JP
Japan
Prior art keywords
transmission
hydraulic
clutch
hydraulic clutch
input shaft
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.)
Pending
Application number
JP61302369A
Other languages
Japanese (ja)
Inventor
Masaru Machida
賢 町田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP61302369A priority Critical patent/JPS63152751A/en
Priority to GB8725374A priority patent/GB2201739B/en
Priority to DE19873738012 priority patent/DE3738012A1/en
Priority to CA000551410A priority patent/CA1314458C/en
Priority to KR1019870012630A priority patent/KR910000472B1/en
Priority to FR8715585A priority patent/FR2606334B1/en
Priority to US07/119,795 priority patent/US4907465A/en
Publication of JPS63152751A publication Critical patent/JPS63152751A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To promote the reduction of synchronizing time of a subtransmission, by connecting a small contour transmission member of a hydraulic clutch to the side of an input shaft. CONSTITUTION:A hydraulic clutch C, which controls disc plates 25, 26 being forced to come into press contact by a pressure of oil, exists interposing between an output shaft 8 from a main transmission A of gear type, operating a speed change control by the action of an oil hydraulic actuator, and an input shaft 9 for a subtransmission B of gear type operating a speed change control by the action of an oil hydraulic actuator. While the hydraulic clutch C operates so as to perform the disconnecting action immediately before both the actuators are actuated. In this transmission, a small contour transmission member 23 of the hydraulic clutch C is connected to a side of the input shaft 9. By this constitution, synchronizing time of the subtransmission can be reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、筒状のクラッチケースの内部に設けられた多
数のディスクプレートと、該クラッチケースに内装され
る小径伝動部材の外部に設けられた多数のディスクプレ
ートとを交互に配設し、かつ、これらディスクプレート
を油圧によって圧接操作する油圧クラッチを、油圧アク
チュエータの作動で変速操作されるギヤ式の主変速装置
からの出力軸と、油圧アクチュエータの作動で変速操作
されるギヤ式の副変速装置に対する入力軸との間に介装
すると共に、両油圧アクチュエータの作動直前に前記油
圧クラッチを切り操作するよう構成された油圧操作式ギ
ヤ゛変速装置に関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a large number of disc plates provided inside a cylindrical clutch case, and a small diameter transmission member provided outside the clutch case. A hydraulic clutch, in which a large number of disc plates are arranged alternately, and which press and operate these disc plates by hydraulic pressure, is connected to an output shaft from a gear-type main transmission that is operated to change speed by the operation of a hydraulic actuator, and A hydraulically operated gear shift interposed between an input shaft of a gear-type sub-transmission device that is operated to change gears by actuation of an actuator, and configured to disconnect and operate the hydraulic clutch immediately before actuation of both hydraulic actuators. Regarding equipment.

〔従来の技術〕[Conventional technology]

冒記の如く構成された油圧操作式ギヤ変速装置としては
、例えば、特開昭61−6’028号公報に示されるも
のがあり、該変速装置では変速操作直前に油圧クラッチ
を切り操作すると共に、変速操作直後に油圧クラッチを
伝動状態に操作するよう油圧系がシーケンス作動型に構
成され、主クラッチを切り操作すること無く変速操作を
行える特徴を有する。
An example of a hydraulically operated gear transmission configured as described above is the one disclosed in Japanese Patent Application Laid-Open No. 61-6'028, in which the hydraulic clutch is disengaged and operated immediately before a gear change operation. The hydraulic system is constructed in a sequence operating type so that the hydraulic clutch is operated to a transmission state immediately after a gear shift operation, and the gear shift operation can be performed without disengaging the main clutch.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

又、該引例の変速装置では主副変速装置夫々の部位にお
いて円滑な変速作゛動が行われるようギヤ変速部はシン
クロメツシュ型に構成される。
In addition, in the transmission of the cited reference, the gear transmission section is constructed in a synchromesh type so that a smooth shift operation can be performed in each part of the main and sub-transmission devices.

又、主変速装置と副変速装置とを比較すると、冒記の如
く構成される油圧式ギヤ変速装置では副変速装置側に後
進用のギヤ等、比較的慣性モーメントの大きい部材を連
結しているため、副変速装置の変速作動時には変速作動
開始から変速作動完了までに要する時間が、比較的慣性
モーメントの小さい主変速装置の作動に要する時間と比
較して長くなる傾向にあり、副変速装置を変速操作した
場合にはシンクロに要する時間だけ車体が無駆動状態に
なり改善の余地がある。
Also, when comparing the main transmission and the auxiliary transmission, in the hydraulic gear transmission configured as described above, a member with a relatively large moment of inertia, such as a reverse gear, is connected to the auxiliary transmission. Therefore, when the auxiliary transmission operates to shift, the time required from the start of the shift to the completion of the shift tends to be longer than the time required to operate the main transmission, which has a relatively small moment of inertia. When changing gears, the vehicle body is in a non-driving state for the time required for synchronization, so there is room for improvement.

特に、前記引例では油圧クラッチの切り状態で、比較的
大径部を有するクラッチケースが副変速装置側と連結し
ているため、シンクロに要する時間の増大を助長するも
のとなっている。
In particular, in the cited example, when the hydraulic clutch is disengaged, the clutch case having a relatively large diameter portion is connected to the auxiliary transmission, which increases the time required for synchronization.

本発明の目的は、油圧クラッチの合理的な配設によって
、副変速装置の変速操作に要する時間をできるだけ短縮
する点にある。
An object of the present invention is to reduce the time required for shifting the sub-transmission device as much as possible by rationally arranging the hydraulic clutch.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の特徴は冒記構成の変速装置において、前記油圧
クラッチの小径伝動部材を前記入力軸の側に連結してあ
る点にあり、その作用、及び、効果は次の通りである。
A feature of the present invention is that in the transmission having the above configuration, the small-diameter transmission member of the hydraulic clutch is connected to the input shaft side, and its functions and effects are as follows.

〔作 用〕[For production]

上記特徴を例えば第1図及び第2図に示すように構成す
ると、油圧クラッチ(C)の、小径伝動部材(23)が
側突連装?! CB)の側と連結するため、前記引例の
変速装置と比較して副変速装置(B)のシンクロ時間を
短縮できることになる。
If the above characteristics are configured as shown in FIGS. 1 and 2, for example, the small-diameter transmission member (23) of the hydraulic clutch (C) will be connected to the side. ! CB) side, the synchronization time of the sub-transmission device (B) can be shortened compared to the transmission device of the above-mentioned reference.

〔発明の効果〕〔Effect of the invention〕

油圧クラッチの配設方向の設定変更という、比較的簡単
な改造によって、副変速装置のシンクロ時間の短縮が図
られ、車体が無駆動で走行する時間も短縮できるように
なった。
Through a relatively simple modification of changing the orientation of the hydraulic clutch, the synchronization time of the sub-transmission system can be shortened, and the time the vehicle runs without drive can also be shortened.

〔実施例〕〔Example〕

以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.

第2図及び第3図に示すように、エンジン(1)からの
動力を主クラッチ(2)を介してミッションケース(3
)に伝えると共に、ミッションケース(3)からの変速
動力で前後車輪(4) 、 (5)を駆動し、かつ、ミ
ッションケース(3)の後端に突設した外部動力取出し
軸(6)を駆動するよう農用トラクタの伝動系を構成す
る。
As shown in Figures 2 and 3, power from the engine (1) is transferred to the transmission case (3) via the main clutch (2).
), the transmission power from the transmission case (3) drives the front and rear wheels (4), (5), and the external power take-off shaft (6) protruding from the rear end of the transmission case (3) A transmission system of an agricultural tractor is configured to drive the agricultural tractor.

これらの図に示すように、ミッションケース(3)には
、駆動軸(7)からの動力を4段に変速して出力軸の一
例としての第1軸(8)に伝えるシンクロメツシュ式の
主変速装置(八)、第1軸(8)と入力軸の一例として
の第2軸(9)との間に介装された多板式油圧クラッチ
(C)、第2軸(9)からの動力を第3軸(10)に対
して前進2段後進1段に変速して伝えられるシンクロメ
ツシュ式の副変速装置(B)、第3軸(10)からの動
力を前記後車輪(5)に伝える差動機構(11)、第3
軸(10)からの動力を前記前車輪(4)に対する出力
軸(12)に伝えるギヤ連動機構(13)、入力軸(7
)からの動力を2段に変速して、前記外部動力取出し軸
(6)に対する第4軸(14)に伝えるコンスタントメ
ツシュ式のPTO変速装置(D)等を内装して成り、第
4軸(14)には一方クラッチ(15)が介装され、又
、出力軸(12)からの動力は中間軸(16)及び差動
機構(17)を介して前車輪(4)に伝えられる。
As shown in these figures, the mission case (3) has a synchromesh type transmission that changes the power from the drive shaft (7) in four stages and transmits it to the first shaft (8), which is an example of an output shaft. The main transmission (8), the multi-disc hydraulic clutch (C) interposed between the first shaft (8) and the second shaft (9) as an example of an input shaft, and the A synchromesh sub-transmission device (B) transmits power to the third shaft (10) by changing the speed to two forward speeds and one reverse speed, and the power from the third shaft (10) is transmitted to the rear wheels (5). ), the differential mechanism (11), the third
A gear interlocking mechanism (13) that transmits power from the shaft (10) to an output shaft (12) for the front wheels (4), and an input shaft (7).
) is internally equipped with a constant mesh type PTO transmission (D), etc., which changes the power from (14) is equipped with a one-way clutch (15), and power from the output shaft (12) is transmitted to the front wheels (4) via the intermediate shaft (16) and differential mechanism (17).

当該農用トラクタの変速系では、主変速装置(A)の二
つの変速用スリーブ(18) 、 (19)の操作、及
び副変速装置(B)の前進用の変速用スリーブ(20)
の操作夫々を油圧アクチュエータ(18a) 。
In the transmission system of the agricultural tractor, the two transmission sleeves (18) and (19) of the main transmission (A) are operated, and the forward transmission sleeve (20) of the auxiliary transmission (B) is operated.
Each operation is performed by a hydraulic actuator (18a).

(19a) 、 (20a)で行うと共に、これら油圧
アクチュエータ(18a) 、 (19a) 、 (2
0a)で変速操作が行われる直前に前記油圧クラッチ(
C)を切り操作し、かつ、変速操作直後に該油圧クラッ
チ(C)を伝動状態に操作するようシーケンス作動型に
油圧系が構成され、主クラッチ(2)を切り操作するこ
と無く変速操作が行われる。
(19a), (20a), and these hydraulic actuators (18a), (19a), (2
0a), the hydraulic clutch (
The hydraulic system is configured in a sequence operating type so that the hydraulic clutch (C) is operated to the transmission state immediately after the gear shift operation is performed, and the gear shift operation is performed without disengaging the main clutch (2). It will be done.

第1図に示すように、前記油圧クラッチ(C)は、第1
軸(8)にスプライン部(21s)を介して外嵌すると
共に第2軸(9)に対してニードルベアリング(22)
を介して外嵌するクラ・ンチケース(21)と、第2軸
(9)にスプライン部(23s)を介して外嵌し、かつ
、前記クラッチケース(21)の内側の筒状部(21a
)にボールベアリング(24)を介して外嵌する小径伝
動部材(23)と、クラッチケース(21)の大径部(
21b)に支持された多数のディスクプレート(25)
・・と、これらのディスクプレート(25)・・と交互
に配置され、かつ、小径伝動部材(23)に支持された
多数のディスクプレート(26)・・と、これらディス
クプレー) (25)・・。
As shown in FIG. 1, the hydraulic clutch (C) has a first
A needle bearing (22) is externally fitted onto the shaft (8) via a spline portion (21s), and a needle bearing (22) is fitted onto the second shaft (9).
a clutch case (21) that is externally fitted through the clutch case (21), and a cylindrical part (21a) that is externally fitted to the second shaft (9) via the spline part (23s) and that is inside the clutch case (21).
), the small diameter transmission member (23) is externally fitted through the ball bearing (24), and the large diameter part (21) of the clutch case (21).
a number of disk plates (25) supported by 21b);
..., these disk plates (25)..., a large number of disk plates (26), which are arranged alternately and supported by the small diameter transmission member (23), and these disk plates (25)...・.

(26)・・を圧接操作する油圧ピストン(27)と、
これらディスクプレート(25)・・、 (26)・・
を離間する方向に付勢するバネ(28)とで成っている
(26)... A hydraulic piston (27) that presses and operates;
These disk plates (25)..., (26)...
and a spring (28) that biases the two in the direction of separating them.

又、該油圧クラッチ(C)は前後の壁部(3a) 。Further, the hydraulic clutch (C) has front and rear wall portions (3a).

(3b)に挾まれる位置に配設され、ミッションケース
(3)の組立の際には該油圧クラッチ(C)を予め組立
てておき、前記第1軸(8)をミッションケース(3)
に組込んだ後、この第1軸(8)に該油圧クラッチ(C
)を外嵌できるよう、第1軸(8)の軸端と前記壁部(
3a) 、 (3b)のうち後部(3b)のものとの間
隔(S)を該油圧クラッチ(C)を挿入できる程度に設
定してある。
(3b), and when assembling the transmission case (3), the hydraulic clutch (C) is assembled in advance, and the first shaft (8) is inserted into the transmission case (3).
After installing the hydraulic clutch (C) into the first shaft (8),
) so that the shaft end of the first shaft (8) and the wall part (
Of 3a) and 3b, the distance (S) from the rear part (3b) is set to such an extent that the hydraulic clutch (C) can be inserted.

尚、油圧による変速操作系は第4図に示す如く、油圧ポ
ンプ(31)、変速用バルブ(32)、前記三つの油圧
アクチュエータ(18a) 、 (19a) 、 (2
0a)夫々と一体的に構成されると共に作動時にパイロ
ット圧を変化させる三つのシーケンスバルブ(18v)
 、 (19v) 、 (20v) 、前後進切換操作
時にバイロフト圧を変化させるシーケンスバルブ(Bv
)、油圧ポンプ(31)、油圧クラッチ(C)との間の
油路に介装された調圧機構(33)、論理バルブ機構(
34)、で成り、変速用バルブ(32)の操作によって
油圧アクチュエータ(18a) 、 (19a) 、 
(20a)夫々が作動する際にはシーケンスバルブ(1
8v) 、 (19v) 。
As shown in Fig. 4, the hydraulic speed change operation system includes a hydraulic pump (31), a speed change valve (32), and the three hydraulic actuators (18a), (19a), (2).
0a) Three sequence valves (18v) that are constructed integrally with each other and change the pilot pressure when activated.
, (19v), (20v), Sequence valve (Bv) that changes biloft pressure during forward/reverse switching operation
), a hydraulic pump (31), a pressure regulating mechanism (33) interposed in the oil passage between the hydraulic clutch (C), and a logic valve mechanism (
34), hydraulic actuators (18a), (19a),
(20a) When each operates, the sequence valve (1
8v), (19v).

(20v)夫々からのパイロット圧の変化によって、油
圧クラッチ(C)が一旦切り操作され、この後、伝動状
態に操作されるよう作動する。
(20v) The hydraulic clutch (C) is once disengaged by the change in the pilot pressure from each of the hydraulic clutches (C), and is then operated to a transmission state.

〔別実施例〕[Another example]

本発明は上記実施例以外に例えば、油圧による変速作動
をセンサ等を用いてフィードバックによって構成したも
のに適用して実施することも可能である。
In addition to the embodiments described above, the present invention can also be applied to, for example, a system in which the hydraulic speed change operation is configured by feedback using a sensor or the like.

尚、特許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、該記入により本発明は添付図面の構造
に限定されるものではない。
Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明に係る油圧操作式ギヤ変速装置の実施例を
示し、第1図は油圧クラッチの配設位置を示すミッショ
ンケースの断面図、第2図は油圧クラッチの断面図、第
3図は農用トラクタの伝動系を示す線図、第4図は変速
操作系を示す油圧回路図である。 (8)・・・・・・出力軸、(9)・・・・・・入力軸
、(21)・・・・・・クラッチケース、(23)・・
・・・・小径伝動部材、(25) 。 (26)・・・・・・ディスクプレート、(A)・・・
・・・主変速装置、(B)・・・・・・副変速装置、(
C)・・・・・・油圧クラッチ。
The drawings show an embodiment of the hydraulically operated gear transmission according to the present invention, in which FIG. 1 is a sectional view of a mission case showing the arrangement position of the hydraulic clutch, FIG. 2 is a sectional view of the hydraulic clutch, and FIG. 3 is a sectional view of the transmission case. FIG. 4 is a diagram showing the transmission system of the agricultural tractor, and FIG. 4 is a hydraulic circuit diagram showing the speed change operation system. (8)...Output shaft, (9)...Input shaft, (21)...Clutch case, (23)...
...Small diameter transmission member, (25). (26)... Disc plate, (A)...
...Main transmission, (B)...Sub-transmission, (
C)...Hydraulic clutch.

Claims (1)

【特許請求の範囲】[Claims]  筒状のクラッチケース(21)の内部に設けられた多
数のディスクプレート(25)・・と、該クラッチケー
ス(21)に内装される小径伝動部材(23)の外部に
設けられた多数のディスクプレート(26)・・とを交
互に配設し、かつ、これらディスクプレート(25)・
・、(26)・・を油圧によって圧接操作する油圧クラ
ッチ(C)を、油圧アクチュエータの作動で変速操作さ
れるギヤ式の主変速装置(A)からの出力軸(8)と、
油圧アクチュエータの作動で変速操作されるギヤ式の副
変速装置(B)に対する入力軸(9)との間に介装する
と共に、両油圧アクチュエータの作動直前に前記油圧ク
ラッチ(C)を切り操作するよう構成された油圧操作式
ギヤ変速装置であって、前記油圧クラッチ(C)の小径
伝動部材(23)を前記入力軸(9)の側に連結してあ
る油圧操作式ギヤ変速装置。
A large number of disk plates (25) provided inside a cylindrical clutch case (21), and a large number of disks provided outside a small diameter transmission member (23) installed inside the clutch case (21). The plates (26)... are arranged alternately, and these disk plates (25)...
. , (26) . . . with an output shaft (8) from a gear-type main transmission (A) that is operated to change speed by the operation of a hydraulic actuator;
It is interposed between the input shaft (9) of the gear type sub-transmission device (B) which is operated to change gears by the operation of the hydraulic actuator, and the hydraulic clutch (C) is operated to disengage immediately before the operation of both hydraulic actuators. A hydraulically operated gear transmission configured as such, wherein a small diameter transmission member (23) of the hydraulic clutch (C) is connected to the input shaft (9) side.
JP61302369A 1986-11-10 1986-12-17 Hydraulically operated gear transmission Pending JPS63152751A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP61302369A JPS63152751A (en) 1986-12-17 1986-12-17 Hydraulically operated gear transmission
GB8725374A GB2201739B (en) 1986-11-10 1987-10-29 Change speed control structure for transmission
DE19873738012 DE3738012A1 (en) 1986-11-10 1987-11-09 GEAR CHANGE CONTROL ARRANGEMENT FOR HYDRAULIC TRANSMISSION
CA000551410A CA1314458C (en) 1986-11-10 1987-11-09 Change speed control structure for hydraulic transmission
KR1019870012630A KR910000472B1 (en) 1986-11-10 1987-11-10 Change speed control structure for hydraulic transmission
FR8715585A FR2606334B1 (en) 1986-11-10 1987-11-10 SPEED CHANGE CONTROL DEVICE FOR HYDRAULIC TRANSMISSION
US07/119,795 US4907465A (en) 1986-11-10 1987-11-12 Change speed control structure for hydraulic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61302369A JPS63152751A (en) 1986-12-17 1986-12-17 Hydraulically operated gear transmission

Publications (1)

Publication Number Publication Date
JPS63152751A true JPS63152751A (en) 1988-06-25

Family

ID=17908069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61302369A Pending JPS63152751A (en) 1986-11-10 1986-12-17 Hydraulically operated gear transmission

Country Status (1)

Country Link
JP (1) JPS63152751A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02199353A (en) * 1989-01-27 1990-08-07 Kubota Ltd Hydraulic clutch for speed change
CN103527772A (en) * 2012-07-03 2014-01-22 通用汽车环球科技运作有限责任公司 A method of controlling a synchronizer actuator fork of a transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616028A (en) * 1984-06-20 1986-01-11 Kubota Ltd Control circuit for hydraulic clutch for running speed shift

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616028A (en) * 1984-06-20 1986-01-11 Kubota Ltd Control circuit for hydraulic clutch for running speed shift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02199353A (en) * 1989-01-27 1990-08-07 Kubota Ltd Hydraulic clutch for speed change
CN103527772A (en) * 2012-07-03 2014-01-22 通用汽车环球科技运作有限责任公司 A method of controlling a synchronizer actuator fork of a transmission

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