JPH075013Y2 - Vehicle refraction angle detector - Google Patents
Vehicle refraction angle detectorInfo
- Publication number
- JPH075013Y2 JPH075013Y2 JP1986179821U JP17982186U JPH075013Y2 JP H075013 Y2 JPH075013 Y2 JP H075013Y2 JP 1986179821 U JP1986179821 U JP 1986179821U JP 17982186 U JP17982186 U JP 17982186U JP H075013 Y2 JPH075013 Y2 JP H075013Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- refraction
- vehicle body
- body frame
- vehicle
- 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
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、モータグレーダ、ホイールローダ、アーテイ
キユレートダンプ等の車体屈折式車両における車体屈折
角検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle body refraction angle detection device for a vehicle body refraction type vehicle such as a motor grader, a wheel loader, and an articulate dump truck.
（従来の技術） 従来の前記車体屈折角検出装置は、第３図に示すように
後部車体フレーム（１）側に屈折用軸（３）を縦設して
固定し、該屈折用軸（３）に前部車体フレーム（２）を
水平面内で旋回、即ち屈折可能に連結するとともに、前
部車体フレーム（２）にボルト（４）で固着され突設さ
れているブラケット（３）の先端部に車体屈折角検出セ
ンサ（５）を装着して固定し、該車体屈折角検出センサ
（５）の回転検出軸（5a）を屈折用軸（３）上のガイド
ピン（3a）にフレキシブルカツプリング（６）で同軸芯
上に連結した構造になつており、後部車体に対する前部
車体の相対屈折角を、ガイドピン（3a）によりフレキシ
ブルカツプリング（６）を介し回転検出軸（5a）を回転
することによつて検出するようになつている。(Prior Art) In the conventional vehicle body refraction angle detecting device, as shown in FIG. 3, a refraction shaft (3) is vertically installed and fixed to the rear body frame (1) side, and the refraction shaft (3) is fixed. ) Is connected to the front vehicle body frame (2) in a horizontal plane so as to be pivotable, that is, in a bendable manner, and the front end portion of the bracket (3) fixed to the front vehicle body frame (2) by a bolt (4) and projecting therefrom. The vehicle body refraction angle detection sensor (5) is attached and fixed to the vehicle body, and the rotation detection shaft (5a) of the body refraction angle detection sensor (5) is flexibly coupled to the guide pin (3a) on the refraction shaft (3). It has a structure in which it is connected on the coaxial core in (6), and the relative detection angle of the front vehicle body to the rear vehicle body is rotated by the guide pin (3a) through the flexible coupling (6) and the rotation detection shaft (5a). By doing so, it is detected.
（考案が解決しようとする問題点） 従来の前記車体屈折角検出装置は、ガイドピンと回転検
出軸間の相対軸芯ずれに対処させるために、フレキシブ
ルカツプリングが介装されているが、フレキシブルカツ
プリングの許容軸芯ずれは通常約1mm以下であつて、建
設機械などの大型車両では、板金公差が大きくて旋回用
軸側のガイドピンと車体屈折角検出センサ側の回転検出
軸との両中心軸線を1mm以下に押えるのが非常に困難で
あるなどの問題点がある。フレキシブルカツプリングは
非常に高価であつて、同カツプリングの取替えは著しく
コスト高になる。(Problems to be Solved by the Invention) In the conventional vehicle body refraction angle detection device, a flexible coupling is interposed in order to deal with relative misalignment between the guide pin and the rotation detection shaft. The allowable axial misalignment of the ring is usually about 1 mm or less, and in large vehicles such as construction machinery, the sheet metal tolerance is large and both center axis lines of the guide pin on the turning shaft side and the rotation detection shaft on the vehicle body refraction angle detection sensor side are large. There is a problem that it is very difficult to hold down to less than 1 mm. Flexible couplings are very expensive and replacement of the couplings is very expensive.
（問題点の解決手段） 本考案は、前記のような問題点に対処するための車体屈
折角検出装置であつて、前部車体フレームと後部車体フ
レームとを屈折用軸を介して相対的に屈折可能に連結し
た車体屈折式車両において、前記屈折用軸を一方のフレ
ームに固定すると共に、該屈折用軸端部にこれと同一軸
芯上にピン部材を突出させて設け、該ピン部材外周に軸
受を介してブラケットのボス部を嵌合させ、該ボス部に
回転角検出センサーを取付けるとともに、その検出軸を
前記ピン部材に固定し、該回転角検出センサーを支持す
る前記ブラケットを前記屈折用軸の軸芯に向つて摺動自
在に他方のフレームに装着したことにより、車体屈折角
の検出性能、信頼性を向上させて前記のような問題点を
解消している。(Means for Solving Problems) The present invention is a vehicle body refraction angle detection device for solving the above problems, in which a front vehicle body frame and a rear vehicle body frame are relatively disposed via a refraction axis. In a refracting vehicle in which refraction is coupled, the refraction shaft is fixed to one frame, and a pin member is provided at the end of the refraction shaft so as to project on the same axis as the refraction shaft. The boss portion of the bracket is fitted to the boss via a bearing, a rotation angle detection sensor is attached to the boss portion, the detection shaft is fixed to the pin member, and the bracket supporting the rotation angle detection sensor is bent to By being mounted on the other frame so as to be slidable toward the axis of the working shaft, the above-mentioned problems are solved by improving the detection performance and reliability of the vehicle body refraction angle.
（作用） 車体屈折角検出センサの回転検出軸と屈折用軸との軸芯
ずれは、ブラケットの摺動により吸収されてなくなる。(Function) The axis misalignment between the rotation detection axis of the vehicle body refraction angle detection sensor and the refraction axis is absorbed by the sliding of the bracket.
（実施例） 第１図および第２図に本考案の一実施例を示し、図中
（１）は後部車体フレーム、（２）は前部車体フレーム
であつて、後部車体フレーム（１）に屈折用軸（13）を
縦設して固定するとともに、屈折用軸（13）にブツシユ
（14）を介して前部車体フレーム（２）を屈折可能に枢
支し、前、後部車体フレーム（１）（２）間に連設した
油圧シリンダ（図示省略）などによつて、後部車体に対
し前部車体が相対的に水平面内で屈折操車される構成に
なつている。(Embodiment) FIGS. 1 and 2 show an embodiment of the present invention, in which (1) is a rear body frame, (2) is a front body frame, and the rear body frame (1) is The refraction shaft (13) is vertically installed and fixed, and the front body frame (2) is pivotably supported on the refraction shaft (13) through the bush (14) so that the front and rear body frames ( The front vehicle body is bent and steered relatively in the horizontal plane with respect to the rear vehicle body by a hydraulic cylinder (not shown) continuously connected between 1) and 2).
さらに、後部車体フレーム（１）の下部に屈折用軸（2
3）を嵌挿して縦設し、該屈折用軸（23）はプレート（2
4）とボルト（25）で後部車体フレーム（１）に固定さ
れ、該屈折用軸（23）に前部車体フレーム（２）を相対
揺動可能に球面軸受（27,28）を介し枢支しており、前
部車体フレーム（２）にボルト（30）によりブラケット
（31）を突設するとともに、同ブラケット（31）にセン
サのブラケット（32）を摺動可能に突出して、ブラケッ
ト（32）の先端ボス部（32a）車体屈折角検出センサ（3
3）を装着して固定し、同検出センサ（33）の回転検出
軸（33a）の下端部を、屈折用軸（23）上に突設したガ
イドピン（23a）上に溝と突起などよりなる連結手段で
嵌着した構成になつている。Further, the bending shaft (2
3) is vertically inserted and inserted, and the refraction shaft (23) is attached to the plate (2
4) and bolts (25) are fixed to the rear body frame (1), and the front body frame (2) is pivotally supported on the bending shaft (23) via spherical bearings (27, 28) so that the front body frame (2) can be relatively swung. The bracket (31) is projectingly provided on the front body frame (2) with the bolt (30), and the sensor bracket (32) is slidably projected to the bracket (31) so that the bracket (32 ) Tip boss (32a) Car body refraction angle detection sensor (3
3) is attached and fixed, and the lower end of the rotation detection shaft (33a) of the detection sensor (33) is attached to the guide pin (23a) projecting on the refraction shaft (23) by grooves and protrusions. It is configured to be fitted by the connecting means.
図中（26）は屈折用軸（23）に嵌着した筒状部材、（3
5）は軸受である。In the figure, (26) is a tubular member fitted to the refracting shaft (23), and (3)
5) is a bearing.
本考案の実施例は、前記のような構成になつているの
で、後部車体フレーム（１）に対する前部車体フレーム
（２）の水平面内での屈折は屈折用軸（13）と屈折用軸
（23）を中心にして行われるとともに、後部車体に対し
前部車体の上下、斜方向の相対角度変位が生じても、球
面軸受（27,28）により屈折用軸（23）にこじり力が発
生するのが防止され、屈折用軸（23）のガイドピン（23
a）の変位がなくなり後部車体フレーム（１）に固定さ
れている。一方、例えば、後部車体即ち屈折用軸（23）
に対し前部車体の前側つまり図示左側が上方あるいは下
方へ動く傾斜変位に伴う、ガイドピン（23a）に対する
車体屈折角検出センサ（33）の変位は、ガイドピン（23
a）によるブラケット（32）および車体屈折角検出セン
サ（33）の支持力によつてブラケット（31）と（32）と
の摺動により吸収され、ガイドピン（23a）と回転検出
軸（33a）間の軸芯ずれの吸収能力は大きくてこじりは
殆んどなくなり、フレキシブルカツプリングを介装しな
くても、屈折用軸（23）のガイドピン（23a）に対する
車体屈折角検出センサ（33）の回転検出軸（33a）の軸
芯の整合性が確保され、常に高い精度の車体屈折角検出
信号が得られる。Since the embodiment of the present invention is configured as described above, the refraction axis (13) and the refraction axis (13) are refracted in the horizontal plane of the front body frame (2) with respect to the rear body frame (1). 23) as the center, and even if the front and rear vehicle bodies are vertically angularly displaced relative to the rear vehicle body, a twisting force is generated on the refraction shaft (23) by the spherical bearings (27, 28). Of the guide pin (23
It has been fixed to the rear body frame (1) without any displacement of a). On the other hand, for example, the rear body, that is, the bending shaft (23)
On the other hand, the displacement of the vehicle body refraction angle detection sensor (33) relative to the guide pin (23a) due to the tilt displacement in which the front side of the front vehicle body, that is, the left side in the figure moves upward or downward,
The support force of the bracket (32) and the vehicle body refraction angle detection sensor (33) by a) is absorbed by the sliding of the brackets (31) and (32), and is absorbed by the guide pin (23a) and the rotation detection shaft (33a). The ability to absorb the axial misalignment between them is large, and the twisting is almost eliminated, and the vehicle body refraction angle detection sensor (33) with respect to the guide pin (23a) of the refraction shaft (23) is eliminated even if a flexible coupling is not interposed. The consistency of the axis of the rotation detection shaft (33a) is secured, and a highly accurate vehicle body refraction angle detection signal is always obtained.
（考案の効果） このように本考案によるときは前部車体フレームと後部
車体フレームとを相対的に屈折可能に連結する屈折用軸
は、これを一方のフレームに固定すると共に、該屈折用
軸端部に、これと同一軸芯上にピン部材を突出させて設
け、該ピン部材外周に軸受を介してブラケットのボス部
を嵌合させ、該ボス部に回転角検出センサーを取付ける
と共にその検出軸を前記ピン部材に固定し、該回転検出
センサーを支持する前記ブラケットを前記屈折用軸の軸
芯に向つて摺動自在に他方のフレームに装着したもので
あるから前部車体フレームと後部車体フレームとの相対
角度が変化しても一方の車体フレームに固定する屈折用
軸端部のピン部材に固定される検出軸を有する回転角検
出センサーは、ピン部材外周に軸受を介して嵌合し且つ
屈折用軸の軸芯に向つて摺動自在に他方の車体フレーム
に装着するブラケツトのボス部に取付けられるため、検
出軸のピン部材に対する変化はピン部材の支持力によつ
て車体フレームに対するブラケットの摺動により吸収さ
れて屈折用軸端部のピン部材と屈折角検出センサーの検
出軸間の軸芯ずれは殆どなく取付けられて車体屈折角の
検出性能を著しく向上することができると共にその組立
て作業を容易にする等の効果を有する。(Effects of the Invention) As described above, according to the present invention, the refraction shaft connecting the front body frame and the rear body frame in a relatively refractable manner is fixed to one of the frames, and the refraction shaft is fixed. A pin member is provided at the end so as to project on the same axis as the pin member, the boss portion of the bracket is fitted to the outer periphery of the pin member through a bearing, and a rotation angle detection sensor is attached to the boss portion and its detection is performed. Since the shaft is fixed to the pin member and the bracket for supporting the rotation detecting sensor is slidably attached to the other frame toward the axis of the bending shaft, the front body frame and the rear body Even if the relative angle with the frame changes, the rotation angle detection sensor having a detection shaft fixed to the pin member at the end of the bending shaft fixed to one of the vehicle body frames is fitted on the outer periphery of the pin member via a bearing. And Since it is attached to the boss portion of the bracket that is slidably attached to the other body frame toward the axis of the folding shaft, the change of the detection shaft with respect to the pin member is caused by the support force of the pin member. The pin member at the end of the refraction shaft and the detection shaft of the refraction angle detection sensor are absorbed by sliding and are attached with almost no axial misalignment, so that the detection performance of the refraction angle of the vehicle body can be significantly improved and the assembling work can be performed. Has the effect of facilitating
第１図は本考案の一実施例を示す縦断面図、第２図は第
１図のII−II部分の平面図、第３図は従来例の縦断面図
である。 １…前側フレーム（後部車体）、２…後側フレーム（前
部車体）、23…検出ピン、23a…ガイドピン、27,28…球
面軸受、32…ブラケット、33…車体屈折角検出センサ、
33a…回転検出軸。FIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of a II-II portion of FIG. 1, and FIG. 3 is a vertical sectional view of a conventional example. 1 ... Front frame (rear vehicle body), 2 ... Rear frame (front vehicle body), 23 ... Detecting pin, 23a ... Guide pin, 27, 28 ... Spherical bearing, 32 ... Bracket, 33 ... Vehicle body refraction angle detection sensor,
33a… Rotation detection axis.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−158307（ＪＰ，Ａ) 特開 昭59−7201（ＪＰ，Ａ) 実開 昭61−128422（ＪＰ，Ｕ) 実開 昭58−80506（ＪＰ，Ｕ) 実開 昭58−54379（ＪＰ，Ｕ) 実公 昭59−9990（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-158307 (JP, A) JP-A-59-7201 (JP, A) Actually opened 61-128422 (JP, U) Actually opened 58- 80506 (JP, U) Actually opened 58-54379 (JP, U) Actually opened 59-9990 (JP, Y2)
Claims (1)
屈折用軸を介して相対的に屈折可能に連結した車体屈折
式車両において、前記屈折用軸を一方のフレームに固定
すると共に、該屈折用軸端部にこれと同一軸芯上にピン
部材を突出させて設け、該ピン部材外周に軸受を介して
ブラケットのボス部を嵌合させ、該ボス部に回転角検出
センサーを取付けるとともに、その検出軸を前記ピン部
材に固定し、該回転角検出センサーを支持する前記ブラ
ケットを前記屈折用軸の軸芯に向つて摺動自在に他方の
フレームに装着したことを特徴とする車体屈折角検出装
置。1. A vehicle refraction vehicle in which a front vehicle body frame and a rear vehicle body frame are connected to each other via a refraction shaft so that they can be relatively refracted. A pin member is provided so as to project on the same shaft core as the shaft end portion for use, a boss portion of the bracket is fitted to the outer periphery of the pin member via a bearing, and a rotation angle detection sensor is attached to the boss portion, The detection shaft is fixed to the pin member, and the bracket for supporting the rotation angle detection sensor is slidably attached to the other frame toward the axis of the bending shaft, and the refraction angle of the vehicle body is characterized. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986179821U JPH075013Y2 (en) | 1986-11-25 | 1986-11-25 | Vehicle refraction angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986179821U JPH075013Y2 (en) | 1986-11-25 | 1986-11-25 | Vehicle refraction angle detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6385569U JPS6385569U (en) | 1988-06-04 |
| JPH075013Y2 true JPH075013Y2 (en) | 1995-02-08 |
Family
ID=31123222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986179821U Expired - Lifetime JPH075013Y2 (en) | 1986-11-25 | 1986-11-25 | Vehicle refraction angle detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075013Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076754A1 (en) * | 2003-02-26 | 2004-09-10 | Shin Caterpillar Mitsubishi Ltd. | Arm angle sensor device in construction machine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5192510B2 (en) * | 2010-03-25 | 2013-05-08 | 三菱電機株式会社 | Rotation angle measurement device and rotation angle measurement method for rotation device |
| JP6394238B2 (en) * | 2014-09-29 | 2018-09-26 | コベルコ建機株式会社 | Pin coupling device, construction machine with pin coupling device and pin holder for pin coupling device |
| JP7130587B2 (en) * | 2019-03-29 | 2022-09-05 | 株式会社クボタ | work machine |
| EP3951080A4 (en) * | 2019-03-29 | 2023-01-04 | Kubota Corporation | Work machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599990U (en) * | 1982-07-13 | 1984-01-21 | スズキ株式会社 | Motorcycle radiator and muffler cover |
-
1986
- 1986-11-25 JP JP1986179821U patent/JPH075013Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076754A1 (en) * | 2003-02-26 | 2004-09-10 | Shin Caterpillar Mitsubishi Ltd. | Arm angle sensor device in construction machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6385569U (en) | 1988-06-04 |
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