JPS5878999A - Winch driving controller for crane car - Google Patents
Winch driving controller for crane carInfo
- Publication number
- JPS5878999A JPS5878999A JP17502381A JP17502381A JPS5878999A JP S5878999 A JPS5878999 A JP S5878999A JP 17502381 A JP17502381 A JP 17502381A JP 17502381 A JP17502381 A JP 17502381A JP S5878999 A JPS5878999 A JP S5878999A
- Authority
- JP
- Japan
- Prior art keywords
- winch
- winch drum
- relief valve
- wire
- winding
- 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
Landscapes
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
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】
本−発明はクレーン車のウィンチ駆動制御装置に関する
ものである〇
一般にクレーン車にはウィンチ機構が搭載されており、
このウィンチ機構は、油圧モータ減速機によ・てウィン
卆ドラムを回転駆動させ、ウィンチドラムに一端を止着
したワイヤを巻取り、あるイハ繰＊’ｌｌｊことによっ
て貨物を吊上げ、あるいは荷卸しするものである〇
とこ、ろで、前述したウィンチドラムに巻回された？イ
ヤの巻層によって油圧モータに作用する啓上刃は大きく
、興なり、例えばウィンチドラムにワイヤが多層（５〜
６層）巻回された場合には、一層の場合に比べ巻上刃は
倍近く大きくなる。したがうて、多層巻における巻上刃
を基準として油圧系が設定されると、一層巻の場合には
巻上刃は過剰となり、定格負荷を越えた過大な荷重を吊
上げる能力を有することになる。このため、ブームヘッ
ドや減速機なンが前述の荷重によって損傷する可能性が
ある。[Detailed Description of the Invention] The present invention relates to a winch drive control device for a crane vehicle. In general, a crane vehicle is equipped with a winch mechanism.
This winch mechanism rotates a winch drum using a hydraulic motor speed reducer, winds up a wire that is fixed at one end to the winch drum, and lifts or unloads cargo by repeating certain steps. Was it wound around the winch drum mentioned above? The winding blade that acts on the hydraulic motor by the winding layer of the ear is large and has a large diameter.For example, the winch drum has multiple layers (5~
In the case of 6-layer winding, the winding blade is nearly twice as large as in the case of 1-layer winding. Therefore, if the hydraulic system is set based on the hoisting blade in multi-layer winding, the hoisting blade will be excessive in the case of single-layer winding, and will have the ability to lift an excessive load exceeding the rated load. . For this reason, there is a possibility that the boom head and reducer may be damaged by the above-mentioned loads.
本発明鴫上記の点に鑑みてなされたもので、油圧モータ
に圧油を供給−する油圧ポンプの吐出回路に、電磁リリ
ーフ弁を配設したバイパス回路を分岐せしめ、該電磁リ
リーフ弁の設定圧をウィン１チドラムへのワイヤ巻層に
よっ１て変化させ、巻層に見合った油圧力を発生させる
ようにしたもので、。The present invention has been made in view of the above points, and a bypass circuit in which an electromagnetic relief valve is disposed is branched into the discharge circuit of a hydraulic pump that supplies pressure oil to a hydraulic motor, and the set pressure of the electromagnetic relief valve is This is changed by the wire winding layer on the winch drum, and generates hydraulic pressure commensurate with the winding layer.
以下本発明の実施何番−面に−１づいて説明すると、図
面は本発明ウィンチ躯鋤制御装置を示すもので、車両用
エンジン等適宜の駆動源にて作゛動される油圧ポンて１
より吐出された圧油は、吐出１１６ｖＩ２より方向制御
弁３を経てウィンチ用油圧モ」り４に供給され、その排
油は方向制御弁３、戻り前踏５を経てオイルリザーバ６
に帰還するようになっている。また、前述の吐出四路２
にはバイパス回路７が分岐されており、このバイパス回
路７には、ソレノイドへの入力電流を変化させることに
よって連続的に設定圧を変化させることのできる電磁−
リリーフ弁８゛が配置されており、その排油は前記オイ
ルリザーバ６に帰還するように構成されている。The present invention will now be described in detail based on the practical aspects. The drawings show a winch body plow control system according to the present invention.
The pressure oil discharged from the outlet 116vI2 is supplied to the winch hydraulic motor 4 via the directional control valve 3, and the discharged oil passes through the directional control valve 3 and the return front treadle 5 to the oil reservoir 6.
It is expected to return to . In addition, the above-mentioned four discharge paths 2
A bypass circuit 7 is branched into the bypass circuit 7, and this bypass circuit 7 includes an electromagnetic circuit that can continuously change the set pressure by changing the input current to the solenoid.
A relief valve 8' is arranged so that the drained oil is returned to the oil reservoir 6.
一方、９はウィンチドラムであって、前述した油圧モー
タ４に図示しない減速機を介して連結さ”れ、油圧モー
タ４が正転あるいは逆転するとき、一端をウィンチドラ
ム９に止着された７ツク懸吊用ワイヤ１０を巻取りある
いは繰出すことによって、貨物を吊上げあるいは荷卸し
ｆるものである。On the other hand, reference numeral 9 denotes a winch drum, which is connected to the aforementioned hydraulic motor 4 via a speed reducer (not shown), and has one end fixed to the winch drum 9 when the hydraulic motor 4 rotates forward or reverse. Cargo is hoisted or unloaded by winding up or letting out the hanging wire 10.
ところで、前記ウィンチドラム９に臨んでワイヤ巻層検
Ａ−１１が配置されており、該ワイヤ巻層検出器１１は
、ウィンチドラム９に巻回されるワイヤ、１０にスプリ
ング１２によって常時押圧接触するように配置された検
出部１３と、該検出部１３によって検出されるワイヤ巻
層の変化を電気量に変換するボテンシ、ンメータなどの
変換部１４とより構成され、該変換部１４からの信号ｉ
ま増幅器１５にて増幅されて前述した電磁リリーフ弁８
のソレノイドに出力するようになっている。By the way, a wire winding layer detector A-11 is arranged facing the winch drum 9, and the wire winding layer detector 11 is always pressed into contact with the wire 10 wound around the winch drum 9 by a spring 12. It is composed of a detection section 13 arranged as shown in FIG.
The electromagnetic relief valve 8 described above is amplified by the amplifier 15.
output to the solenoid.
この場合、電磁リリーフ弁８の設定圧は、多層巻あ場合
には高く、−万一層巻の場合には低く設定されている〇
したがって、ワイヤ９が一層巻の状態でウィンチ作業を
行なう場合には、ワイヤ巻層検出Ｉ＃１１により電磁リ
リーフ弁８の設定圧が低く設定されているため、許容以
上の負荷が作用した場合には、油圧ポンプ１よりの圧油
は、バイパス回路７、電磁リリーフ弁８を経て゛オイル
リザーバ６に帰環する。−）ｉ一方、ワイヤ１０が順次
２層巻・・・・多層巻の状態でウィンチドラ＾９と巻回
されている一合には、ワイヤ巻層をワイヤ巻層検出器１
１＆！！て検出し、その巻層に見合った設定圧で電磁リ
リーフ弁８を作動させるため、許容以上の負荷が作用す
ると、油圧ポンプ１よりの圧油はオイルリザーバに帰環
し、ウイゼチ用モータ４は駆動することがない。In this case, the set pressure of the electromagnetic relief valve 8 is set high in the case of multi-layer winding, and low in the case of multi-layer winding. Therefore, when winching work is performed with the wire 9 in the state of one-layer winding Since the set pressure of the electromagnetic relief valve 8 is set low by the wire winding layer detection I#11, if a load exceeding the allowable value is applied, the pressure oil from the hydraulic pump 1 is transferred to the bypass circuit 7, The oil returns to the oil reservoir 6 via the electromagnetic relief valve 8. -)i On the other hand, when the wire 10 is sequentially wound with the winch driver ^9 in two-layer winding...multilayer winding, the wire winding layer is connected to the wire winding layer detector 1.
1&! ! Since the electromagnetic relief valve 8 is operated with a set pressure commensurate with the winding layer, when a load that exceeds the permissible level is applied, the pressure oil from the hydraulic pump 1 returns to the oil reservoir, and the withset motor 4 is activated. Never drive.
以上のように本発明にあっては、ウィンチドラムに巻回
されたワイヤ巻層の変化によって電磁リリーフ弁の設定
圧を連続的に変更せしめるようにしたので、ワイヤ巻回
状態に見合った負荷以下の荷重のみをウィンチによって
吊上げることができ、ウィンチ作業を安全に行うことが
できる。As described above, in the present invention, the set pressure of the electromagnetic relief valve is continuously changed by changing the wire winding layer wound around the winch drum, so that the load is lower than the load commensurate with the wire winding state. The winch can lift only a load of
。、１７あ、。 ｋ４・・・・ウィ
ンチ用油圧モータ、８・・・・電磁リリーフ弁、９・・
・・ウィンチドラム、１０・・・・ワイヤ、１１・・・
・ワイヤ巻層検出器◎. , 17 ah. k4...Hydraulic motor for winch, 8...Solenoid relief valve, 9...
...Winch drum, 10...Wire, 11...
・Wire winding layer detector◎
Claims (1)
有するクレーン車において、前記ウィンチドラムに巻回
されるワイヤの巻層を検出するとともに、前記油圧モー
タに圧油を供給する油圧ポンプの吐出回路には電磁リリ
ーフ弁を配置したバイパス回路を分岐せしめ、前記ウィ
ンチドラムへのワイヤ着層によ゛って電磁リリーフ弁の
設定圧を変化させることを特徴とするクレーン車のウィ
ンチ駆動制御装置。In a crane vehicle having a winch drum rotationally driven by a hydraulic motor lowering machine, a discharge circuit of a hydraulic pump that detects a winding layer of wire wound around the winch drum and supplies pressure oil to the hydraulic motor. A winch drive control device for a crane truck, characterized in that a bypass circuit in which an electromagnetic relief valve is arranged is branched off, and the set pressure of the electromagnetic relief valve is changed by layering a wire on the winch drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17502381A JPS5878999A (en) | 1981-10-30 | 1981-10-30 | Winch driving controller for crane car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17502381A JPS5878999A (en) | 1981-10-30 | 1981-10-30 | Winch driving controller for crane car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5878999A true JPS5878999A (en) | 1983-05-12 |
Family
ID=15988861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17502381A Pending JPS5878999A (en) | 1981-10-30 | 1981-10-30 | Winch driving controller for crane car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5878999A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126613A (en) * | 2007-11-21 | 2009-06-11 | Nippon Sharyo Seizo Kaisha Ltd | Piling machine |
| EP3093264A1 (en) * | 2015-05-09 | 2016-11-16 | Pisek - Vitli Krpan, d.o.o. | A mechanic-hydraulic system with a pressure regulator for maintaining a constant tractive force power of a winch |
-
1981
- 1981-10-30 JP JP17502381A patent/JPS5878999A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126613A (en) * | 2007-11-21 | 2009-06-11 | Nippon Sharyo Seizo Kaisha Ltd | Piling machine |
| EP3093264A1 (en) * | 2015-05-09 | 2016-11-16 | Pisek - Vitli Krpan, d.o.o. | A mechanic-hydraulic system with a pressure regulator for maintaining a constant tractive force power of a winch |
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