JPH03114661U - - Google Patents

Description

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

第１図は本考案一実施例の縦断正面図、第２図
はその一部の詳細図である。 １……筒状中間軸、１ａ，１ｂ……球案内孔、
２……第１伝動機構の原動輪、２ａ……Ｖ溝、３
……第２伝動機構の原動輪、３ａ……Ｖ溝、４…
…従動輪、５……チエン、６……従動輪、７……
出力軸、８，９……球、１０……制御軸、１０ａ
……鍔、１１……圧縮ばね。 FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, and FIG. 2 is a detailed view of a portion thereof. 1... Cylindrical intermediate shaft, 1a, 1b... Ball guide hole,
2... Driving wheel of the first transmission mechanism, 2a... V groove, 3
...Driving wheel of the second transmission mechanism, 3a...V groove, 4...
... Driven wheel, 5... Chain, 6... Driven wheel, 7...
Output shaft, 8, 9... Ball, 10... Control axis, 10a
...Tsuba, 11...Compression spring.

Claims (1)

【実用新案登録請求の範囲】 １ 入力軸にサイドクラツチ装置付きの歯車変速
機構を介して両側の筒状中間軸の内端部を、等速
回転するように連動連結したクローラ駆動用変速
機において、両側の筒状中間軸１の外端部に夫々
、対応する出力軸７を該筒状中間軸と逆向きに回
転させる第１伝動機構の原理輪２と、該対応出力
軸を筒状中間軸と同方向に回転させる第２伝動機
構の原動輪３とを左右対称配置で回動のみ自在に
取付けて、該第１、第２の伝動機構の伝動比を略
等しく構成し、且つ各筒状中間軸と第１、第２の
伝動機構の原動輪との間に夫々、該各原動輪の内
周に均分凹設した軸方向のＶ溝２ａ，３ａと、該
各Ｖ溝に夫々対応して筒状中間軸に穿設した半径
方向の球案内孔１ａ，１ｂに一部が常時係合する
球８，９とを含むボールクラツチを配設し、該各
球を対応Ｖ溝に係脱可能な１個の算盤玉状の鍔１
０ａを設けた制御軸１０を、該鍔が第１伝動機構
側のボールクラツチの球案内孔１ａに対向する位
置と、第２伝動機構側のボールクラツチの球案内
孔１ｂに対向する位置とに選択的に切換えられる
ように、筒状中間軸内に取付けて、前記両ボール
クラツチの一方が係合した時は他方が切断するよ
うに構成したことを特徴とするクローラ駆動用変
速機。 ２ 第１伝動機構を歯車伝動型に、又第２伝動機
構を鎖車伝動型に夫々構成して、該両伝動機構の
内、両側の車両直進用伝動機構を車両旋回用伝動
機構の外側に配設し、該車両直進用伝動機構のボ
ールクラツチを常時係合賦勢する圧縮ばね１１を
制御軸１０の内端側における筒状中間軸内に取付
けた請求項１記載のクローラ駆動用変速機。[Claims for Utility Model Registration] 1. In a crawler drive transmission in which the inner ends of both cylindrical intermediate shafts are interlocked and connected to the input shaft via a gear transmission mechanism with a side clutch device so as to rotate at a constant speed. , a principle wheel 2 of a first transmission mechanism that rotates the corresponding output shaft 7 in the opposite direction to the cylindrical intermediate shaft 1 at the outer end of the cylindrical intermediate shaft 1 on both sides; A driving wheel 3 of a second transmission mechanism that rotates in the same direction as the shaft is mounted so as to be rotatable in a symmetrical arrangement, and the transmission ratios of the first and second transmission mechanisms are configured to be approximately equal, and each cylinder Between the shaped intermediate shaft and the driving wheels of the first and second transmission mechanisms, axial V grooves 2a and 3a are recessed evenly on the inner periphery of each driving wheel, and in each of the V grooves, respectively. A ball clutch including balls 8 and 9, some of which are permanently engaged with radial ball guide holes 1a and 1b correspondingly bored in the cylindrical intermediate shaft, is provided, and each ball is inserted into a corresponding V groove. 1 removable abacus-shaped guard 1
The control shaft 10 provided with the collar 0a is placed at a position where the collar faces the ball guide hole 1a of the ball clutch on the first transmission mechanism side and at a position where it faces the ball guide hole 1b of the ball clutch on the second transmission mechanism side. 1. A crawler drive transmission characterized in that the transmission is mounted within a cylindrical intermediate shaft so as to be selectively switched, and configured so that when one of the two ball clutches is engaged, the other is disengaged. 2. The first transmission mechanism is configured as a gear transmission type, and the second transmission mechanism is configured as a chain wheel transmission type. A crawler drive transmission according to claim 1, wherein a compression spring (11) is disposed and is mounted in a cylindrical intermediate shaft on the inner end side of the control shaft (10) for constantly urging the ball clutch of the transmission mechanism for moving the vehicle in a straight line into engagement. .