JPH051462Y2 - - Google Patents
Info
- Publication number
- JPH051462Y2 JPH051462Y2 JP1985108342U JP10834285U JPH051462Y2 JP H051462 Y2 JPH051462 Y2 JP H051462Y2 JP 1985108342 U JP1985108342 U JP 1985108342U JP 10834285 U JP10834285 U JP 10834285U JP H051462 Y2 JPH051462 Y2 JP H051462Y2
- Authority
- JP
- Japan
- Prior art keywords
- differential
- differential case
- case
- cylindrical
- gear
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Motor Power Transmission Devices (AREA)
- Retarders (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、主として乗用型田植機等の農機に搭
載されるデフ機構に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention mainly relates to a differential mechanism mounted on an agricultural machine such as a riding rice transplanter.
この種のデフ機構において、従来は、入力回転
体を外嵌着した円筒状デフケースに、二つの円筒
状デフギヤを、それらの軸芯がデフケースの軸芯
に平行でかつ互いに食い違う状態で収納し、円筒
状デフケースの両側端で円筒状デフギヤの軸部が
互いに接触する状態でかつデフケース側端内面に
摺接する状態で二つのデフギヤをデフケース内に
支持し、各デフギヤより出力軸をそれらの軸芯が
互いに食い違う状態に延出していた（特許第四三
五七一号）。
Conventionally, in this type of differential mechanism, two cylindrical differential gears are housed in a cylindrical differential case to which an input rotating body is fitted externally, with their axes parallel to the axis of the differential case and offset from each other. Two differential gears are supported within the differential case with the shafts of the cylindrical differential gears in contact with each other at both ends of the differential case and in sliding contact with the inner surface of the side edges of the differential case. They extended in a manner that contradicted each other (Patent No. 43571).
しかし、この場合にはデフケースが円筒状でか
つその軸芯方向全長に亘つて略同一の内外径に形
成されたものではあつても、デフギヤの軸芯が互
いに平行でかつ食い違う状態に装着されているの
で、各デフギヤのギヤ径を必要最小限に小径化し
ても少なくともデフギヤ径の二倍以上のケース径
を必要とするために、大径化は避けられずコンパ
クト化にも限界があつた。しかも、デフギヤ同志
の軸部の一部を互いに接触する状態でデフケース
に支持しているので、支持形態が不安定であり大
動力の伝達に適応出来ない面があつた。
However, in this case, even though the differential case is cylindrical and has approximately the same inner and outer diameters over its entire axial length, the differential gears are installed with their axes parallel to each other and offset. Therefore, even if the gear diameter of each differential gear is reduced to the necessary minimum, a case diameter that is at least twice the diameter of the differential gear is required, so increasing the diameter is unavoidable and there is a limit to miniaturization. Furthermore, since the shaft portions of the differential gears are supported by the differential case in a state where they are in contact with each other, the supporting form is unstable and cannot be adapted to transmit large amounts of power.
本考案の目的は、円筒状のデフケースでありな
がら、コンパクトで大動力の伝達にも適し、か
つ、複雑で手間のかかる製作を必要としないデフ
機構を提供する点にある。 The purpose of the present invention is to provide a differential mechanism that is compact and suitable for transmitting large amounts of power despite being a cylindrical differential case, and that does not require complicated and time-consuming manufacturing.
本考案による特徴構成は軸芯方向全長に亘つて
略同一内外径を有し、その外周面に入力回転体を
外嵌着した単一円筒状デフケースに、端面に咬合
歯が形成された円筒状の左右デフサイドギヤを、
その円筒外周面が前記デフケースの内周面に摺接
しかつ左右デフサイドギヤの軸芯を前記デフケー
スの軸芯に一致させた状態で支持されるべく前記
デフケースに装着するとともに、前記デフサイド
ギヤに咬合するデフピニオンギヤを、前記デフケ
ースの径方向に貫通する状態でそのデフケースに
取り付けられたデフピニオン軸に取り付けて前記
デフケース内に収納し、前記デフケースの軸芯と
同芯の左右出力軸を前記デフサイドギヤに一体回
転可能に装着してある点にあり、その作用効果は
次の通りである。
The characteristic structure of the present invention is a single cylindrical differential case that has approximately the same inner and outer diameters over the entire length in the axial direction and has an input rotating body externally fitted on the outer circumferential surface of the differential case, and a cylindrical differential case that has interlocking teeth formed on the end surface. left and right differential side gears,
The cylindrical outer circumferential surface is in sliding contact with the inner circumferential surface of the differential case, and the left and right differential side gears are attached to the differential case so that the axes of the left and right differential side gears are aligned with the axes of the differential case. A differential pinion gear is attached to a differential pinion shaft attached to the differential case so as to pass through the differential case in the radial direction and housed in the differential case, and the left and right output shafts coaxial with the axis of the differential case are integrated with the differential side gear. It is rotatably mounted, and its functions and effects are as follows.
つまり、左右デフサイドギヤがその軸芯をデフ
ケースの軸芯に一致させた同芯状態にあるので、
左右デフサイドギヤの軸芯が食い違い状態にある
従来構成のものに比べて、デフケースの円筒径を
小さくできる。
In other words, the left and right differential side gears are in a concentric state with their axes aligned with the axis of the differential case.
Compared to the conventional configuration in which the axes of the left and right differential side gears are misaligned, the cylindrical diameter of the differential case can be made smaller.
しかも、デフサイドギヤをデフケースの内周面
に直接接触させて支持させているので、支持形態
が安定し、大動力の伝達も支障なく行える。 Moreover, since the differential side gear is supported in direct contact with the inner circumferential surface of the differential case, the support form is stable and large power can be transmitted without any problems.
また、円筒状のデフサイドギヤ外周面をデフケ
ース内周面に直接接触支持させるとともに、デフ
サイドギヤ外周面を避けて円筒状の端面に咬合歯
を形成することによつて、咬合歯を外周面に設け
るものに比べてデフケースの内周面径、さらに
は、デフケース外径を小さなものに出来る。 In addition, the cylindrical differential side gear outer circumferential surface is supported in direct contact with the differential case inner circumferential surface, and the occlusal teeth are provided on the outer circumferential surface by forming the occlusal teeth on the cylindrical end surface avoiding the differential side gear outer circumferential surface. The inner circumferential diameter of the differential case, as well as the outer diameter of the differential case, can be made smaller than that of the original.
更に、デフピニオン軸を取り付ける為の貫通孔
をデフケースに穿設するだけの加工を施すだけ
で、デフサイドギヤを支持するための軸受け装着
用取り付け座等を形成する必要はなく、それだけ
製作負担を少なくできる。 Furthermore, by simply drilling a through hole in the differential case to attach the differential pinion shaft, there is no need to form a mounting seat for mounting a bearing to support the differential side gear, which reduces the manufacturing burden. .
その結果、円筒状デフケースを採用し、その内
周面に軸芯を一致させたデフサイドギヤを直接接
触支持させる構成によつて、派生的に咬合歯をデ
フサイドギヤの円筒状端面に形成できて、デフケ
ースの小径化を一層推進でき、地上高を余裕を以
て確保できる。
As a result, by adopting a cylindrical differential case and directly supporting the differential side gear whose axis coincides with the inner peripheral surface of the differential case, it is possible to form interlocking teeth on the cylindrical end surface of the differential side gear. It is possible to further reduce the diameter of the differential case, and it is possible to secure sufficient ground clearance.
しかも、円筒状デフケースの内周面に軸芯を一
致させたデフサイドギヤを直接接触支持させる構
成が、デフサイドギヤを支持するベアリングの装
着のための加工を不要とし、主としてデフピニオ
ン軸を貫通支承するための孔を形成する加工を必
要とするだけで、製作面でも有利に展開できるデ
フケースを提供できるに到つた。 Moreover, the configuration in which the differential side gear whose axis is aligned with the inner circumferential surface of the cylindrical differential case is supported in direct contact eliminates the need for machining to install the bearing that supports the differential side gear, and the differential pinion shaft is mainly supported through the shaft. It has now been possible to provide a differential case that can be advantageously developed in terms of manufacturing by only requiring processing to form the holes.
乗用型田植機の後車輪用として用いられるもの
を一例としてデフ機構を説明する。
The differential mechanism will be explained by taking as an example a differential mechanism used for the rear wheels of a riding rice transplanter.
エンジン（図外）からの動力をこの後車輪用デ
フ機構１に伝達すべく設けられた出力ギヤ２と常
時咬合する入力回転体３の一例であるベベルギヤ
を、軸芯方向に全長に亘つて略同一の内外径を有
する円筒状デフケース４にスプライン外嵌すると
ともに、このデフケース４内にデフピニオン軸５
に支承した差動歯車機構８を構成するデフピニオ
ンギヤ６，６とこのデフピニオンギヤ６，６に咬
合するデフサイドギヤ７，７とをデフケース内壁
面４Ａに接触する状態で装備してある。デフサイ
ドギヤ７，７を円筒状のものに形成するととも
に、その軸芯方向一端面に咬合歯を形成し、デフ
サイドギヤ７，７の軸芯をデフケース４の軸芯に
一致させその外周面をデフケース内壁面に直接接
触する状態で内嵌し、デフケース４の径方向に貫
通する状態でそのデフケース４に取り付けられた
デフピニオン軸５にデフピニオンギヤ６を取り付
けて差動歯車機構８を構成する。デフサイドギヤ
７をスプライン外嵌した出力軸９を側方に延出し
て後車輪（図外）への伝動構造を構成するととも
に、この左右出力軸９Ａ，９Ａにブレーキ機構１
０Ａ，１０Ｂとこのブレーキ機構１０Ａ，１０Ｂ
を操作するスリーブ１１Ａ，１１Ｂをスプライン
外嵌してある。スリーブ１１Ａ，１１Ｂはブレー
キ操作方向とは反対側にバネ１２Ａ，１２Ａ付勢
されるとともに、左右一対のブレーキペダル１３
Ａ，１３Ｂの踏み込み操作によつてブレーキ機構
１０Ａ，１０Ｂに夫々接当作用するようにしてあ
る。また、一方のスリーブ１１Ｂは対向するデフ
ケース４端との間に咬合離脱可能な係合爪１１ａ
を設け、この係合爪１１ａの咬合によつてデフロ
ツク状態を現出すべく構成されている。尚、この
一方のスリーブ１１Ｂは一段踏み込みによつてデ
フロツク状態を解除すべく離脱方向に摺動すると
ともに、次の２段目の踏み込みによつて、ブレー
キ機構１０Ｂに接当作用するように作動する。図
中１４は他方のブレーキペダル１３Ａの２段目の
踏み込みによつて、一方のペダル１３Ｂを一段分
だけ作動させてデフロツク状態を解除させ、か
つ、その後ブレーキ機構１０Ａを操作するように
ペダル間に設けられた連係具である。 A bevel gear, which is an example of an input rotary body 3 that constantly engages with an output gear 2 provided to transmit power from an engine (not shown) to the rear wheel differential mechanism 1, is shown approximately over its entire length in the axial direction. A cylindrical differential case 4 having the same inner and outer diameters is fitted with a spline, and a differential pinion shaft 5 is fitted inside this differential case 4.
Differential pinion gears 6, 6 constituting a differential gear mechanism 8 supported by the differential gear mechanism 8 and differential side gears 7, 7 meshing with the differential pinion gears 6, 6 are provided in contact with the inner wall surface 4A of the differential case. The differential side gears 7, 7 are formed into a cylindrical shape, and interlocking teeth are formed on one end surface in the axial direction of the differential side gears 7, 7, so that the axes of the differential side gears 7, 7 are aligned with the axis of the differential case 4, and the outer circumferential surface of the differential side gears 7, 7 is aligned with the axis of the differential case 4. A differential gear mechanism 8 is constructed by attaching a differential pinion gear 6 to a differential pinion shaft 5 which is fitted into the differential case 4 so as to be in direct contact with the inner wall surface and is attached to the differential case 4 so as to pass through the differential case 4 in the radial direction. The output shaft 9 on which the differential side gear 7 is externally fitted with a spline extends laterally to constitute a transmission structure to the rear wheels (not shown), and the brake mechanism 1 is attached to the left and right output shafts 9A, 9A.
0A, 10B and this brake mechanism 10A, 10B
Sleeves 11A and 11B for operating the motor are externally fitted with splines. The sleeves 11A, 11B are biased by springs 12A, 12A in the opposite direction to the brake operation direction, and are also biased against the pair of left and right brake pedals 13.
By depressing the levers A and 13B, the brake mechanisms 10A and 10B are brought into contact with each other, respectively. Also, one sleeve 11B has an engaging claw 11a that can be engaged with and released from the opposite end of the differential case 4.
is provided, and the engagement of the engaging claws 11a is configured to create a deflock state. When the sleeve 11B is depressed in the first step, it slides in the disengagement direction to release the deflock state, and when the sleeve is depressed in the second step, it is operated to come into contact with the brake mechanism 10B. . In the figure, reference numeral 14 indicates that when the other brake pedal 13A is depressed to the second step, one pedal 13B is actuated by one step to release the deflock state, and then the brake mechanism 10A is operated. This is a connecting device provided.
〔別実施例〕
第２図にしめすように、デフピニオンギヤ１
５の一方ものをピニオン軸１６の一端に一体形
成するとともに、他端に他のデフピニオンギヤ
１５を遊嵌支承し、このデフピニオンギヤ１
５，１５を組み付けたピニオン軸１６を、所定
箇所に設けられた孔１８を介して挿通し、反対
側に貫通突出したピニオン軸１６の突出部にス
ナツプリング１７を嵌着して抜け止め固定する
形態を採用してもよい。この場合にはデフケー
ス４内での組付作業が簡略化でき、作業性を良
好に出来、デフケース４として円筒形状のもの
を採用したことによる効果をより高めることが
できる。[Another embodiment] As shown in Fig. 2, the differential pinion gear 1
5 is integrally formed on one end of the pinion shaft 16, and another differential pinion gear 15 is loosely supported on the other end, and this differential pinion gear 1
The pinion shaft 16 with the assembled pinion shafts 5 and 15 is inserted through a hole 18 provided at a predetermined location, and a snap spring 17 is fitted to the protrusion of the pinion shaft 16 that protrudes through the opposite side to prevent it from coming off. may be adopted. In this case, the assembly work within the differential case 4 can be simplified, workability can be improved, and the effects of adopting a cylindrical differential case 4 can be further enhanced.
このような円筒状のデフケース４を有するデ
フ機構１を、農用トラクタ等の作業機や一般車
に適用してもよい。 The differential mechanism 1 having such a cylindrical differential case 4 may be applied to a working machine such as an agricultural tractor or a general vehicle.
図面は本考案に係るデフ機構の実施例を示し、
第１図は全体縦断面図、第２図はデフケースの別
実施例を示す断面図である。
３……入力回転体、４……デフケース、５……
デフピニオン軸、６……デフピニオンギヤ、７…
…デフサイドギヤ、９……出力軸。
The drawings show an embodiment of the differential mechanism according to the present invention,
FIG. 1 is an overall longitudinal sectional view, and FIG. 2 is a sectional view showing another embodiment of the differential case. 3... Input rotating body, 4... Differential case, 5...
Differential pinion shaft, 6... Differential pinion gear, 7...
...Differential side gear, 9...Output shaft.
Claims (1)
の外周面に入力回転体３を外嵌着した単一円筒状
デフケース４に、端面に咬合歯が形成された円筒
状の左右デフサイドギヤ７，７を、その円筒外周
面が前記デフケース４の内周面に摺接しかつ左右
デフサイドギヤ７，７の軸芯を前記デフケース４
の軸芯に一致させた状態で支持させるべく前記デ
フケース４に装着するとともに、前記デフサイド
ギヤ７に咬合するデフピニオンギヤ６を、前記デ
フケース４の径方向に貫通する状態でそのデフケ
ース４に取り付けられたデフピニオン軸５に取り
付けて前記デフケース４内に収納し、前記デフケ
ース４の軸芯と同芯の左右出力軸９，９を前記デ
フサイドギヤ７，７に一体回転可能に装着してあ
るデフ機構。 A cylindrical left and right differential side gear having a single cylindrical differential case 4 having substantially the same inner and outer diameters over the entire length in the axial direction and having an input rotating body 3 externally fitted on the outer circumferential surface thereof, and having interlocking teeth formed on the end surface. 7, 7, the cylindrical outer peripheral surface of which is in sliding contact with the inner peripheral surface of the differential case 4, and the axis of the left and right differential side gears 7, 7 is connected to the differential case 4.
The differential pinion gear 6, which engages with the differential side gear 7, is attached to the differential case 4 in such a manner that it passes through the differential case 4 in the radial direction. The differential mechanism is attached to the differential pinion shaft 5 and housed in the differential case 4, and left and right output shafts 9, 9 coaxial with the axis of the differential case 4 are attached to the differential side gears 7, 7 so as to be integrally rotatable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985108342U JPH051462Y2 (en) | 1985-07-15 | 1985-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985108342U JPH051462Y2 (en) | 1985-07-15 | 1985-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6216032U JPS6216032U (en) | 1987-01-30 |
| JPH051462Y2 true JPH051462Y2 (en) | 1993-01-14 |
Family
ID=30985449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985108342U Expired - Lifetime JPH051462Y2 (en) | 1985-07-15 | 1985-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051462Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6014532B2 (en) * | 2013-03-28 | 2016-10-25 | 本田技研工業株式会社 | Differential mechanism regulating device |
| JP6268061B2 (en) * | 2013-10-07 | 2018-01-24 | 本田技研工業株式会社 | Differential with differential lock mechanism |
| JP7093258B2 (en) * | 2018-07-18 | 2022-06-29 | 株式会社Subaru | Torque vectoring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131981Y2 (en) * | 1972-07-27 | 1976-08-10 | ||
| JPS5884448U (en) * | 1981-12-02 | 1983-06-08 | 株式会社神崎高級工機製作所 | vehicle differential |
-
1985
- 1985-07-15 JP JP1985108342U patent/JPH051462Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6216032U (en) | 1987-01-30 |
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