JPS63134754A - Automatic tightening system of pc steel rod - Google Patents
Automatic tightening system of pc steel rodInfo
- Publication number
- JPS63134754A JPS63134754A JP28000786A JP28000786A JPS63134754A JP S63134754 A JPS63134754 A JP S63134754A JP 28000786 A JP28000786 A JP 28000786A JP 28000786 A JP28000786 A JP 28000786A JP S63134754 A JPS63134754 A JP S63134754A
- Authority
- JP
- Japan
- Prior art keywords
- jack
- nut
- steel bar
- steel rod
- steel
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 30
- 239000010959 steel Substances 0.000 title claims description 30
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000013523 data management Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はＰＣ鋼棒を緊張させるのに用いられる鋼棒緊
張システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a steel bar tensioning system used for tensioning PC steel bars.
従来、デイビダーグ工法等で行なわれるＰＣ鋼棒の緊張
作業及び管理はすべて人手で行なわれていた。In the past, tensioning work and management of PC steel bars, which was carried out using the Davidag construction method, etc., had all been done manually.
このため従来工法では、作業時間がかかる上に緊張管理
、緊張精度の点からも問題があった。For this reason, conventional construction methods not only take time, but also have problems in terms of tension management and tension accuracy.
そこでこの発明は、前記の様な従来技術の問題点を解決
して緊張作業時間の短縮と緊張精度の向上が図れ、緊張
管理も楽に行ない得るＰＣ鋼棒・自動緊張システムを提
供することを目的とする。Therefore, the purpose of this invention is to provide a PC steel bar/automatic tensioning system that can solve the problems of the prior art as described above, shorten tensioning work time, improve tensioning accuracy, and easily manage tension. shall be.
〔発明の構成Ｊ
この発明によるＰＣ鋼棒の自動緊張システムはＰＣ鋼棒
を挟持位置調整自在に挟持して引張力を伝達する挟持部
及びＰＣ鋼棒用定着ナツトに係着して当該定着ナツトを
回し込み可能なナツト回し部を有し、ＰＣ鋼棒を緊張す
るジヤツキと、このジヤツキに作動油を送給する油圧ポ
ンプと、この油圧ポンプに所定の緊張プログラムに基づ
いて制御信号を出力し前記ジヤツキを操作する制御装置
を備えた点に特徴がある。[Structure of the Invention J The automatic tensioning system for PC steel bars according to the present invention includes a clamping part that clamps a PC steel bar so that the clamping position can be freely adjusted and transmits tensile force, and a clamping part that is attached to a fixing nut for the PC steel bar to tighten the fixing nut. It has a nut turning part that can be rotated, a jack that tensions the PC steel rod, a hydraulic pump that supplies hydraulic oil to this jack, and a control signal that outputs a control signal to this hydraulic pump based on a predetermined tensioning program. It is characterized in that it includes a control device for operating the jack.
以下、図示するこの発明の実施例てより説明する０
第１図て実施例の全体構成概略図を示した。ここで、こ
のシステムはＰＣ鋼棒４に緊張力を加えるジヤツキ１と
、このジヤツキＩＫ油圧を送給するポンプ２と、このポ
ンプ２を制御する制御装置３とで構成される。Embodiments of the present invention illustrated in the drawings will be explained below. FIG. 1 is a schematic diagram of the overall configuration of an embodiment. Here, this system is comprised of a jack 1 that applies tension to the PC steel rod 4, a pump 2 that supplies this jack IK oil pressure, and a control device 3 that controls this pump 2.
制御装置３には、緊張対象のＰＣ鋼棒４に対応した緊張
プログラムが内蔵されており、制御ケーブル９によりポ
ンプ２へ制御信号が伝達される。The control device 3 has a built-in tension program corresponding to the PC steel rod 4 to be tensioned, and a control signal is transmitted to the pump 2 via the control cable 9.
ポンプ２は制御装置３から入力される制御信号て基づき
油圧ホース８を介してジヤツキ１に油圧を送給し、ジヤ
ツキ１の作動状態はセンサーケーブル７によりポンプ２
側にフィードバックされる。The pump 2 supplies hydraulic pressure to the jack 1 via the hydraulic hose 8 based on a control signal input from the control device 3, and the operating state of the jack 1 is determined by the sensor cable 7.
Feedback is given to the side.
次に、第２図（ａ） 、 （ｂ））に示したジヤツキ１
の縦断面図及び横断面図に基づいてその構造を詳述する
。Next, the jack 1 shown in Fig. 2 (a) and (b))
The structure will be explained in detail based on the vertical cross-sectional view and cross-sectional view.
このジヤツキ１はＰＣ鋼棒４外周に挿通してその先端側
がＰＣ鋼棒４の螺軸部分に螺合するスピンドル６を有し
ている。また、スピンドル６の後端側外周には螺軸が形
成されており、スピンドル用ナツト１２を螺合可能とな
っている。This jack 1 has a spindle 6 which is inserted into the outer periphery of the PC steel rod 4 and whose tip end is screwed into the helical shaft portion of the PC steel rod 4. Further, a screw shaft is formed on the outer periphery of the rear end of the spindle 6, and the spindle nut 12 can be screwed into the screw shaft.
このスピンドル６の外周には描該スピンドル６と同軸に
ジヤツキ本体１１が保合可能となっている。ジヤツキ本
体１１には鋼棒ナツト回転用とスピンドル用ナツト回転
用の二つの油圧モータ１４゜１５が備えられておシ、こ
の中で鋼棒ナツト回転用の油圧モータ１４はギヤー１７
を介してギヤー付ソケット１９が接続されている。ギヤ
ー付ソケット１９は、スピンドル６とジヤツキ本体１１
との間に延在し、鋼棒ナツト５に係合するソケットであ
り、油圧モータ１４０回転に上り鋼棒ナツト５を回し込
み可能としている。また、油圧モータ１４の回転軸には
回転式変位計２０が取付けられており、鋼棒ナツト５の
回し込み量に対応する油圧モータ１４の回転数が計測さ
れ、前述したセンサーケーブル７によりポンプ２側を経
由して、制御装置３に計測量がフィードバックされる。A jack main body 11 can be held on the outer periphery of the spindle 6 coaxially with the spindle 6. The jack body 11 is equipped with two hydraulic motors 14 and 15, one for rotating the steel bar nut and the other for rotating the spindle nut.
A geared socket 19 is connected through the gear. The geared socket 19 connects the spindle 6 and the jack body 11.
This is a socket that extends between and engages with the steel bar nut 5, and allows the hydraulic motor to rotate 140 times to rotate the steel bar nut 5. Further, a rotary displacement meter 20 is attached to the rotating shaft of the hydraulic motor 14, and the rotational speed of the hydraulic motor 14 corresponding to the amount of rotation of the steel bar nut 5 is measured. The measured quantity is fed back to the control device 3 via the side.
もう一方の油圧モータ１５はギヤー１８を介してスライ
ドギヤー１６に接続されておシ、このスライドギヤー１
６はジヤツキストロークに合わせて、ギヤー１８と係合
しながらスライドし、ナツトリング１３を取付けた状態
のスピンドル用ナツト１２に係合して回し込み可能とな
っている。The other hydraulic motor 15 is connected to a slide gear 16 via a gear 18.
6 slides while engaging with the gear 18 in accordance with the jack stroke, and engages with the spindle nut 12 with the nut ring 13 attached so that it can be turned.
以上の構成において、このシステムの使用に際しては、
まずＰＣ鋼棒４にスピンドル６をネジ込んだ後ジヤツキ
本体１１を挿入する。そこで、スピンドル用ナツト１２
を締込み、ナツトリング１３を挿入すればＰＣ鋼棒４へ
のジヤツキ１取付けが完了する。In the above configuration, when using this system,
First, the spindle 6 is screwed into the PC steel rod 4, and then the jack main body 11 is inserted. Therefore, the spindle nut 12
, and inserting the nut ring 13, the attachment of the jack 1 to the PC steel bar 4 is completed.
ここで、制御装置３を作動させると、予め設定された緊
張データに基づき緊張が開始される。すなわち、ジヤツ
キ１がストロークエンドまでＰＣ鋼棒４に緊張を与える
と、油圧モータ１４が駆動され、ギヤー１７及びギヤー
はソケット１９を介して鋼棒ナツト５を回転させて締込
む。Here, when the control device 3 is activated, tensioning is started based on tension data set in advance. That is, when the jack 1 applies tension to the PC steel bar 4 to the stroke end, the hydraulic motor 14 is driven, and the gear 17 and the gear rotate and tighten the steel bar nut 5 via the socket 19.
次にジヤツキストロークを戻すと油圧モータ１５が駆動
され、ギヤー１８．スライドギヤー１６及びナツトリン
グ１３を介してスピンドル用ナツト１２を回転させて締
込み、ジヤツキを盛替る。Next, when the jack stroke is returned, the hydraulic motor 15 is driven, and the gear 18. The spindle nut 12 is rotated and tightened via the slide gear 16 and nut ring 13, and the jack is changed.
以上の操作を緊張データの管理範囲まで自動的に行なう
。The above operations are automatically performed up to the tension data management range.
こうして、この実施例では、スライドギヤーの長さをジ
ヤツキストロークに対応させてストローク中のどの位置
でもナツトリング２回し込み可能としており、さらにス
ピンドルとスピンドル用ナツトを固定すれば、スピンド
ルが中空となっているので伸び量が多くスピンドルの長
さ以上となっても対応できる。In this way, in this embodiment, the length of the slide gear is made to correspond to the jack stroke, so that the nut ring can be inserted twice at any position during the stroke.Furthermore, by fixing the spindle and the spindle nut, the spindle becomes hollow. Since it has a large amount of elongation, it can be used even if it exceeds the length of the spindle.
また、遠隔操作が出来るので不測の事態がおきても安全
である。Furthermore, since it can be controlled remotely, it is safe even in unexpected situations.
〔発明の効果〕
この発明によるＰＣ鋼棒自動緊張システムの実施例は以
上の通りであり、次に述べる効果を挙げることができる
。[Effects of the Invention] The embodiments of the automatic tensioning system for PC steel bars according to the present invention are as described above, and the following effects can be achieved.
緊張作業時間の短縮と緊張精度の向上が図れ、緊張管理
も楽に行ない得るＰＣ鋼棒の緊張システムとなる。This is a tensioning system for PC steel bars that can shorten tensioning work time, improve tensioning accuracy, and easily manage tension.
第１図は発明の実施例構成を示す全体図、第２図（ａ）
はジヤツキの縦断面図、同図（′ｂ）は同図（ａ）のＡ
線断面図である。
１・・ジヤツキ、２・・ポンプ、３・・制御装置、４・
・ＰＣ鋼棒、５・・鋼棒ナツト６＃・スピンドル、７・
・センサーケーブル８・・油圧ホース、９・・制御ケー
ブル１０・・電源ケーブル、１１・・ジヤツキ本体１２
・・スピンドル用ナツト、１３・・ナツトリング、１４
．１５・・油圧モータ
１６・・スライドギヤー、１７．１８・・ギヤー１９・
・ギヤー付ソケット、２０・・回転式変位計。
第２図
（Ｇ）
（ｂ）Figure 1 is an overall view showing the configuration of an embodiment of the invention, Figure 2 (a)
is a vertical cross-sectional view of the jack, and the same figure ('b) is A of the same figure (a).
FIG. 1. Jacket, 2. Pump, 3. Control device, 4.
・PC steel bar, 5・・Steel bar nut 6#・Spindle, 7・
・Sensor cable 8... Hydraulic hose, 9... Control cable 10... Power cable, 11... Jacket body 12
...Spindle nut, 13...Nut ring, 14
．． 15...Hydraulic motor 16...Slide gear, 17.18...Gear 19...
・Socket with gear, 20...Rotary displacement meter. Figure 2 (G) (b)
Claims (1)
る挟持部及びＰＣ鋼棒用定着ナットに係着して当該定着
ナットを回し込み可能なナット回し部を有し、ＰＣ鋼棒
を緊張するジャッキと外部入力される制御信号に基づい
て前記ジャッキに作動油を送給する油圧ポンプと、 予め緊張対象ＰＣ鋼棒に合わせた緊張プログラムが内蔵
され、当該プログラムに基づいて前記油圧ポンプに制御
信号を出力する制御装置とを備えたＰＣ鋼棒自動緊張シ
ステム。[Scope of Claims] It has a clamping part that clamps the PC steel bar so that the clamping position can be freely adjusted and transmits tensile force, and a nut turning part that is engaged with a fixing nut for the PC steel bar and can turn the fixing nut. It has a built-in jack that tensions the PC steel rod, a hydraulic pump that supplies hydraulic oil to the jack based on externally input control signals, and a tension program tailored to the PC steel rod to be tensioned in advance. and a control device that outputs a control signal to the hydraulic pump based on the PC steel bar automatic tensioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28000786A JPS63134754A (en) | 1986-11-25 | 1986-11-25 | Automatic tightening system of pc steel rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28000786A JPS63134754A (en) | 1986-11-25 | 1986-11-25 | Automatic tightening system of pc steel rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63134754A true JPS63134754A (en) | 1988-06-07 |
Family
ID=17619004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28000786A Pending JPS63134754A (en) | 1986-11-25 | 1986-11-25 | Automatic tightening system of pc steel rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63134754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01146064A (en) * | 1987-12-03 | 1989-06-08 | Taisei Corp | Pc steel material stretching controller for prestressed concrete construction |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55126661A (en) * | 1979-03-23 | 1980-09-30 | Asano Kouji Kk | Automatically centralized method of and apparatus for tentioning prestressed concrete structure |
-
1986
- 1986-11-25 JP JP28000786A patent/JPS63134754A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55126661A (en) * | 1979-03-23 | 1980-09-30 | Asano Kouji Kk | Automatically centralized method of and apparatus for tentioning prestressed concrete structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01146064A (en) * | 1987-12-03 | 1989-06-08 | Taisei Corp | Pc steel material stretching controller for prestressed concrete construction |
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