JPS5921155U

JPS5921155U - Forward/reverse switching device for bevel gear transmission

Info

Publication number: JPS5921155U
Application number: JP11650782U
Authority: JP
Inventors: 大橋　佳光; 光喜平田; 松平　要
Original assignee: 株式会社クボタ
Priority date: 1982-07-30
Filing date: 1982-07-30
Publication date: 1984-02-08
Also published as: JPS6325416Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す断面図、第２図は第１図
■−■線断面図、第３図は第２図のｍ−■線断面図であ
る。４・・・・・・駆動ピニオン、５・・・・・・正転ベベ
ルギヤ、６・・・・・・逆転ベベルギヤ、７・・・・・
・ギヤケース、１３・・・・・・ハブ、１４・・・・・
・ベアリング、１７・・・・・・ベアリング、１８・・
・・・・筒軸、２０・・・・・・スプロケット（伝動体
）、２１・・・・・・筒軸スプライン、２２・・・・・
・ハブスプライン、２４．２５・・・・・・スリーブ、
２６・・・・・・スリーブ内周スプライン、２７・・・
・・・スリーブ外周スプライン、２９・・・・・・連結
棒。補正　昭５８．３．５実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲駆動ピニオンと、該ピニオンに同時噛合する正転ベベル
ギヤと逆転ベベルギヤとが、ギヤケース内にコ字形に配
置され、正転ベベルギヤの夫々の背面にハブが突設され
、該ハブ外周がベアリングを介してギヤケースに支持さ
れ、前記両ベベルギヤにベアリングを介して相対回転自
在に支持される筒軸が両ベベルギヤ間に貫挿され、両ベ
ベルギヤ間の筒軸に伝動体が相対回動不能に外嵌され、
筒軸両端部外周にスプラインが設けられ、かつ両ベベル
ギヤの各ハブ内面にスプラインが設けられると共に、筒
軸スプラインとハブスプライン間には径方向の間隙を有
し、該両開隙に夫々スリーブが軸方向移動自在に嵌入さ
れ、該各スリーブの内面には筒軸スプラインと常時噛合
するスプラインが設けられ、スリーブ外面にはスリーブ
の軸方向移動でハブスプラインと係脱自在に噛合するス
プラインが設けられ、上記ハブスプラインと筒軸スプラ
インがスリーブスプラインを介して同時噛合する軸方向
位置は、ハブ外周に套嵌されたベアリングの支持位置に
ほぼ一致していると共に、筒軸両端の両スリーブは、何
れか一方がハブスプラインに完全に噛合した時に他方は
ハブスプラインから完全に離脱し、かつ軸方向移動中途
部では両スリーブは両ハブスプラインに同時噛合してい
る関係を保持すべく、筒軸に摺動自在に貫挿する連結棒
に相対回転自在に連動連結されていることを特徴とする
ベベルギヤ伝動装置の正逆転切換装置。FIG. 1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line m--■ in FIG. 4... Drive pinion, 5... Forward bevel gear, 6... Reverse bevel gear, 7...
・Gear case, 13...Hub, 14...
・Bearing, 17...Bearing, 18...
... cylinder shaft, 20 ... sprocket (transmission element), 21 ... cylinder shaft spline, 22 ...
・Hub spline, 24.25...Sleeve,
26... Sleeve inner circumference spline, 27...
...Sleeve outer circumference spline, 29...Connection rod. Amendment March 5, 1982 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims A drive pinion, a forward bevel gear and a reverse bevel gear that mesh with the pinion at the same time are arranged in a U-shape in a gear case, and a hub is protruded from the back of each of the forward bevel gears, The outer periphery of the hub is supported by the gear case via a bearing, a cylindrical shaft supported by both bevel gears via bearings for relative rotation is inserted between both bevel gears, and a transmission body is mounted on the cylindrical shaft between both bevel gears for relative rotation. immobilized,
A spline is provided on the outer periphery of both ends of the cylinder shaft, and a spline is provided on the inner surface of each hub of both bevel gears, and a radial gap is provided between the cylinder shaft spline and the hub spline, and a sleeve is provided in each of the openings. Each sleeve is fitted so as to be movable in the axial direction, and the inner surface of each sleeve is provided with a spline that constantly engages with the cylindrical shaft spline, and the outer surface of each sleeve is provided with a spline that engages and disengages with the hub spline as the sleeve moves in the axial direction. , the axial position where the hub spline and cylinder shaft spline engage simultaneously via the sleeve spline almost coincides with the support position of the bearing fitted around the outer periphery of the hub, and both sleeves at both ends of the cylinder shaft When one of the sleeves is completely engaged with the hub spline, the other is completely disengaged from the hub spline, and in the middle of the axial movement, both sleeves slide on the cylinder shaft to maintain a relationship in which they are simultaneously engaged with both hub splines. A forward/reverse switching device for a bevel gear transmission device, characterized in that the device is coupled to a connecting rod that is movably inserted therethrough so as to be relatively rotatable.

Claims

[Scope of utility model registration request]

A drive pinion, a forward bevel gear and a reverse bevel gear that mesh with the pinion at the same time are arranged in a U-shape in a gear case, and a hub is protruded from the back of each of the forward and reverse bevel gears, and the outer periphery of the hub is a bearing. A cylindrical shaft is supported by the gear case through the bevel gears, and is supported by both bevel gears through bearings so as to be relatively rotatable. A spline is provided on the outer periphery of both ends of the cylinder shaft, and a spline is provided on the inner surface of each hub of both bevel gears, and there is a radial gap between the cylinder shaft spline and the hub spline. Sleeves are fitted into both openings so as to be freely movable in the axial direction, and the inner surface of each sleeve is provided with a spline that constantly engages with the cylindrical shaft spline, and the outer surface of the sleeve is capable of engaging and disengaging from the hub spline by moving the sleeve in the axial direction. The axial position where the hub spline and the cylinder shaft spline engage simultaneously via the sleeve spline almost corresponds to the support position of the bearing fitted around the outer circumference of the hub, and the cylinder shaft Both sleeves at both ends maintain a relationship in which when one of the sleeves is completely engaged with the hub spline, the other is completely disengaged from the hub spline, and in the middle of axial movement, both sleeves are simultaneously engaged with both hub splines. A forward/reverse switching device for a bevel gear transmission, characterized in that the cylindrical shaft is relatively rotatably interlocked with a connecting rod through which the cylindrical shaft is slidably inserted.