JP2000018944A5 - - Google Patents

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Publication number
JP2000018944A5
JP2000018944A5 JP1998190731A JP19073198A JP2000018944A5 JP 2000018944 A5 JP2000018944 A5 JP 2000018944A5 JP 1998190731 A JP1998190731 A JP 1998190731A JP 19073198 A JP19073198 A JP 19073198A JP 2000018944 A5 JP2000018944 A5 JP 2000018944A5
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JP
Japan
Prior art keywords
servomotor
servomotors
gear
horizontal
prism
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
JP1998190731A
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Japanese (ja)
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JP2000018944A (en
Filing date
Publication date
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Priority to JP10190731A priority Critical patent/JP2000018944A/en
Priority claimed from JP10190731A external-priority patent/JP2000018944A/en
Publication of JP2000018944A publication Critical patent/JP2000018944A/en
Publication of JP2000018944A5 publication Critical patent/JP2000018944A5/ja
Pending legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、測距測角装置及び線形測量装置に関する。例え推進掘削工法または小口径シールドトンネルの線形測量、道路線形測量、幅員等の工事管理測量が本発明の技術分野に含まれる。
[0001]
[Technical field to which the invention belongs]
The present invention relates to a ranging angle measuring device and a linear surveying device. Promotion drilling method or a small-diameter shield tunneling linear surveying For example, road alignment survey, construction management survey width and the like are included in the technical field of the present invention.

上記測距測角部10内には、図3に示す水平回転板3が内蔵されている。該水平回転板3には該水平回転板3の中心部から下方に延びる鉛直回転軸31が形成され、測距測角部10の内底面に取り付けられた軸受ホルダ18に軸支されている。また鉛直回転軸31には歯車32が同心状に取り付けられており、該歯車32に噛合する2つのサーボモータ33により一定速度で回転駆動される。尚、両サーボモータ33は一方のサーボモータにより回転駆動し、その際他方のサーボモータはフリー状態にして従動させる。反射ターゲット2に正対する位置に近づくと一方のサーボモータの回転速度を減速する。そして他方のサーボモータには歯車32を反対方向に回転させる方向の微小電流を供給し、或いは他方のサーボモータを短絡させ歯車32に対して制動力を作用させることにより、一方のサーボモータと歯車32との間にバックラッシュが生じないようにしている。そして、歯車32が停止した状態では少なくともいずれかのサーボモータを短絡させたままの状態にする。尚、34は水平回転板3の回転角度を検知するためのエンコーダユニットの一部であり、等ピッチのスリットが放射状に形成されたスリット板である。一方、水平回転板3の上面には水平回転軸35が回転自在に軸支されており、該水平回転軸の先端には略L字状のブラケットが取り付けられている。該ブラケット36には45度傾斜した反射面41を有するプリズム4が取り付けられいる。該水平回転軸35の後端には歯車37が同心状に取り付けられており、該歯車37には2個のサーボモータ38が噛合している。上記のサーボモータ33の場合と同じく、両サーボモータ38は一方のサーボモータにより回転駆動し、その際他方のサーボモータはフリー状態にして従動させる。反射ターゲット2に正対する位置に近づくと一方のサーボモータの回転速度を減速する。そして他方のサーボモータには歯車37を反対方向に回転させる方向の微小電流を供給し、或いは他方のサーボモータを短絡させ歯車37に対して制動力を作用させることにより、一方のサーボモータと歯車37との間にバックラッシュが生じないようにしている。そして、歯車37が停止した状態では少なくともいずれかのサーボモータを短絡させたままの状態にする。尚、39はエンコーダユニットの一部であるスリット板である。そして、プリズム4に対向して、水平回転軸35の回転軸線上に測定光を出射する測距ユニット5が水平回転板3上に取り付けられている。従って、測距ユニット5から出射された測定光はプリズム4の反射面41で反射され90度光路が変更される。その状態で水平回転軸35を回転させるとプリズム4が回転するので測距ユニット5から出射された測定光は水平回転軸35の軸線に対して直角方向に放射状に出射される。更に、鉛直回転軸31を回転させると水平回転板3上に載置されたものは全て回転するので、上記水平回転軸35の軸線も水平方向に回転し、その結果測距ユニット5から出射された測定光は上下、左右、前後の全ての方向に出射されることになる。ところで、反射ターゲット2は測定光を受光すると測定光の光路に沿って測定光を測距反射光として反射するものであり、透光窓13もしくは透光窓14を通って出射された測定光が離れた測定位置に設置されている別の測距測角装置に取り付けられた反射ターゲット2で反射され、戻ってくる測距反射光はプリズム4の反射面41で反射され測距ユニット5に受光される。尚、図3において、反射ターゲット2を上方に横長状態で示したが、これは作図上の便宜のためであり、実際にはプリズム4の側方に縦長状態で設置されているものである。
The horizontal rotating plate 3 shown in FIG. 3 is built in the ranging angle measuring unit 10. A vertical rotating shaft 31 extending downward from the central portion of the horizontal rotating plate 3 is formed on the horizontal rotating plate 3, and is pivotally supported by a bearing holder 18 attached to the inner bottom surface of the distance measuring angle measuring portion 10. Further, gears 32 are concentrically attached to the vertical rotation shaft 31, and are rotationally driven at a constant speed by two servomotors 33 that mesh with the gears 32. Both servomotors 33 are rotationally driven by one servomotor, and at that time, the other servomotor is put into a free state and driven. When approaching the position facing the reflection target 2, the rotation speed of one of the servomotors is reduced. Then, by supplying a minute current in the direction of rotating the gear 32 in the opposite direction to the other servomotor, or by short-circuiting the other servomotor and applying a braking force to the gear 32, one servomotor and the gear The back crash is prevented from occurring between the 32 and the 32. Then, when the gear 32 is stopped, at least one of the servomotors is kept short-circuited. Reference numeral 34 denotes a part of the encoder unit for detecting the rotation angle of the horizontal rotating plate 3, which is a slit plate in which slits having equal pitches are formed radially. On the other hand, a horizontal rotation shaft 35 is rotatably supported on the upper surface of the horizontal rotation plate 3, and a substantially L-shaped bracket is attached to the tip of the horizontal rotation shaft. A prism 4 having a reflecting surface 41 inclined by 45 degrees is attached to the bracket 36. Gears 37 are concentrically attached to the rear end of the horizontal rotating shaft 35, and two servomotors 38 are meshed with the gears 37. As in the case of the servomotor 33 described above, both servomotors 38 are rotationally driven by one servomotor, and at that time, the other servomotor is put into a free state and driven. When approaching the position facing the reflection target 2, the rotation speed of one of the servomotors is reduced. Then, by supplying a minute current in the direction of rotating the gear 37 in the opposite direction to the other servomotor, or by short-circuiting the other servomotor and applying a braking force to the gear 37, one servomotor and the gear The back crash is prevented from occurring between the 37 and the 37. Then, when the gear 37 is stopped, at least one of the servomotors is kept short-circuited. Reference numeral 39 denotes a slit plate that is a part of the encoder unit. Then, a distance measuring unit 5 that emits measurement light on the rotating axis of the horizontal rotating shaft 35 facing the prism 4 is mounted on the horizontal rotating plate 3. Therefore, the measurement light emitted from the distance measuring unit 5 is reflected by the reflecting surface 41 of the prism 4, and the 90-degree optical path is changed. When the horizontal rotation shaft 35 is rotated in this state, the prism 4 rotates, so that the measurement light emitted from the distance measuring unit 5 is emitted radially in a direction perpendicular to the axis of the horizontal rotation shaft 35. Further, when the vertical rotating shaft 31 is rotated, everything placed on the horizontal rotating plate 3 is rotated, so that the axis of the horizontal rotating shaft 35 is also rotated in the horizontal direction, and as a result, it is emitted from the ranging unit 5. The measured light is emitted in all directions of up and down, left and right, and front and back. By the way, when the reflection target 2 receives the measurement light, the measurement light is reflected as the distance measurement reflected light along the optical path of the measurement light, and the measurement light emitted through the translucent window 13 or the translucent window 14 is emitted. The distance measurement reflected light that is reflected by the reflection target 2 attached to another distance measurement angle measuring device installed at a distant measurement position and returned is reflected by the reflection surface 41 of the prism 4 and received by the distance measurement unit 5. Will be done. In FIG. 3, the reflection target 2 is shown in a horizontally long state upward, but this is for convenience of drawing, and is actually installed in a vertically long state on the side of the prism 4.

JP10190731A 1998-07-06 1998-07-06 Range-finding/angle-measuring device and linear survey device Pending JP2000018944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10190731A JP2000018944A (en) 1998-07-06 1998-07-06 Range-finding/angle-measuring device and linear survey device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10190731A JP2000018944A (en) 1998-07-06 1998-07-06 Range-finding/angle-measuring device and linear survey device

Publications (2)

Publication Number Publication Date
JP2000018944A JP2000018944A (en) 2000-01-21
JP2000018944A5 true JP2000018944A5 (en) 2005-10-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP10190731A Pending JP2000018944A (en) 1998-07-06 1998-07-06 Range-finding/angle-measuring device and linear survey device

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6310784B2 (en) * 2014-06-23 2018-04-11 鹿島建設株式会社 Face face monitoring method
JP6783093B2 (en) * 2016-08-17 2020-11-11 株式会社トプコン measuring device
JP6884529B2 (en) * 2016-08-17 2021-06-09 株式会社トプコン measuring device
CN106918447A (en) * 2017-05-15 2017-07-04 中国人民解放军63908部队 Target automatic direction regulating formula plain shaft parallelism detection method and device
CN110185452A (en) * 2019-05-15 2019-08-30 中铁工程装备集团隧道设备制造有限公司 Ranging angle adjusts positioning mechanism, positioning control system, method and engineering machinery
KR102248149B1 (en) * 2020-10-28 2021-05-04 최종국 Apparatus for preventing accident of heavy equipment

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