JP2620065B2 - Hydraulic elevator equipment - Google Patents
Hydraulic elevator equipmentInfo
- Publication number
- JP2620065B2 JP2620065B2 JP60092657A JP9265785A JP2620065B2 JP 2620065 B2 JP2620065 B2 JP 2620065B2 JP 60092657 A JP60092657 A JP 60092657A JP 9265785 A JP9265785 A JP 9265785A JP 2620065 B2 JP2620065 B2 JP 2620065B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- pressure oil
- control valve
- supply means
- oil supply
- 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
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- Types And Forms Of Lifts (AREA)
- Elevator Control (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、一つの油圧ジヤツキに接続された複数台
の油圧パワーユニツトを備えた油圧エレベータ装置に関
するものである。Description: TECHNICAL FIELD The present invention relates to a hydraulic elevator apparatus having a plurality of hydraulic power units connected to one hydraulic jack.
第８図はたとえば特開昭57−131679号公報に示された
従来の油圧エレベータ装置を示す図であり、この第８図
において、１は油圧ジヤツキで、この油圧ジヤツキ１に
かご２が支持されている。FIG. 8 is a view showing a conventional hydraulic elevator apparatus disclosed in, for example, Japanese Patent Application Laid-Open No. 57-131679. In FIG. 8, reference numeral 1 denotes a hydraulic jack, and a car 2 is supported on the hydraulic jack 1. ing.
また、3,30はそれぞれ第１油圧パワーユニツト、第２
油圧パワーユニツトである。第１油圧パワーユニツト
３、第２油圧パワーユニツト30はそれぞれ油タンク3a,3
0aを備えている。Reference numerals 3 and 30 denote the first hydraulic power unit and the second hydraulic power unit, respectively.
It is a hydraulic power unit. The first hydraulic power unit 3 and the second hydraulic power unit 30 are oil tanks 3a and 3 respectively.
0a.
第１油圧パワーユニツト３、第２油圧パワーユニツト
30はそれぞれ電動機3b,30bを有しており、この電動機3
b,30bによつてそれぞれ油圧ポンプ3c,30cが駆動される
ようになつている。First hydraulic power unit 3, Second hydraulic power unit
30 has electric motors 3b and 30b, respectively.
The hydraulic pumps 3c and 30c are driven by b and 30b, respectively.
油圧ポンプ3c,30cと油タンク3a,30a間には、制御弁3
d,30dが設けられている。この制御弁3d,30dは外部配管
４を通して油圧ジヤツキ１に連結されている。A control valve 3 is provided between the hydraulic pumps 3c, 30c and the oil tanks 3a, 30a.
d and 30d are provided. The control valves 3 d and 30 d are connected to the hydraulic jack 1 through an external pipe 4.
次に、動作について説明する。油圧エレベータのかご
２が上昇運転さるときに、電動機3b,30bに駆動される油
圧ポンプ3c,30cが回転し、油タンク3a,30aより油圧ポン
プ3c,30cに油が吸入された後、制御弁3d,30dへ圧油とな
つて吐出され、制御弁3d,30dで流量制御された圧油は外
部配管４を通過して油圧ジャツキ１に送油される。Next, the operation will be described. When the car 2 of the hydraulic elevator moves up, the hydraulic pumps 3c, 30c driven by the electric motors 3b, 30b rotate, and after the oil is sucked into the hydraulic pumps 3c, 30c from the oil tanks 3a, 30a, the control valve The pressure oil is discharged as pressure oil to 3d and 30d, and the pressure oil whose flow rate is controlled by the control valves 3d and 30d passes through the external pipe 4 and is sent to the hydraulic jack 1.
また、かご２が下降運転されるときには、かご２の重
量によつて油圧ジヤツキ１内の圧油が排出され、外部配
管４を通過し制御弁3d,30dで流量制御され油タンク3a,3
0aに帰還する。When the car 2 is operated to descend, the pressure oil in the hydraulic jack 1 is discharged due to the weight of the car 2, passes through the external pipe 4, and is controlled by the control valves 3d and 30d to control the flow rate of the oil tanks 3a and 3d.
Return to 0a.
つまり、大積載量の油圧エレベータにあつては、油圧
パワーユニツトが大形化して、製作、輸送、据付作業が
煩雑化する不具合があつた。In other words, in the case of a hydraulic elevator having a large loading capacity, the hydraulic power unit becomes large in size, and the production, transportation, and installation work are complicated.
そこで、標準化された比較的小形の第１、第２の油圧
パワーユニツト3,30を準備して、油圧エレベータの積載
量および昇降行程などの異る仕様に第１、第２の油圧パ
ワーユニツト3,30を必要台数配置することによつて対応
することが提案されている。Therefore, standardized relatively small first and second hydraulic power units 3 and 30 are prepared, and the first and second hydraulic power units 3 and 30 are designed to have different specifications such as the loading capacity of the hydraulic elevator and the lifting stroke. , 30 is arranged by arranging the required number.
これは油圧パワーユニツト3,30の生産性を高め、また
油圧エレベータが小容量または大容量のものであつて
も、準備された油圧パワーユニツト3,30の必要台数を一
つの油圧ジャッキ１に接続することによつて容易に対応
することができるという利点がある。This increases the productivity of the hydraulic power units 3,30, and connects the required number of prepared hydraulic power units 3,30 to one hydraulic jack 1 even if the hydraulic elevator is of small or large capacity. By doing so, there is an advantage that it can be easily handled.
つまり、第９図は第１油圧パワーユニツト３のみを駆
動した場合の油圧エレベータの走行特性を縦軸をかご２
の速度、横軸を時間で表わした図であり、第10図は同様
に第２油圧パワーユニツト30のみを駆動した場合の油圧
エレベータの走行特性を示した図である。In other words, FIG. 9 shows the traveling characteristics of the hydraulic elevator when only the first hydraulic power unit 3 is driven.
FIG. 10 is a diagram showing travel characteristics of the hydraulic elevator when only the second hydraulic power unit 30 is driven similarly.
また、第11図の一点鎖線は第１油圧パワーユニツト３
あるいは第２油圧パワーユニツト30のみを駆動した場合
の油圧エレベータの走行特性を再記したものであり、実
線は第１油圧パワーユニツト３と第２油圧パワーユニツ
ト30を同時に駆動した場合の油圧エレベータの走行特性
を示した図であり、これが実際の走行特性となる。The dashed line in FIG. 11 indicates the first hydraulic power unit 3.
Alternatively, the traveling characteristics of the hydraulic elevator when only the second hydraulic power unit 30 is driven are described again, and the solid line indicates the hydraulic elevator when the first hydraulic power unit 3 and the second hydraulic power unit 30 are simultaneously driven. FIG. 5 is a diagram showing traveling characteristics, which are actual traveling characteristics.
第12図は上記の走行特性に対応して電源電流値の時間
に対する特性を示したものである。ここで一点鎖線は第
１油圧パワーユニツト３の電動機3bあるいは第２油圧パ
ワーユニツト30の電動機30bが駆動されている状態での
電源電流値を時間に対して示すもので、電動機3bあるい
は30bの起動開始時に起動電流値I1を示し、定格電流値
はI0となる。FIG. 12 shows the characteristics of the power supply current value with respect to time corresponding to the above-mentioned running characteristics. Here, the alternate long and short dash line indicates a power supply current value with respect to time when the electric motor 3b of the first hydraulic power unit 3 or the electric motor 30b of the second hydraulic power unit 30 is being driven, and the activation of the electric motor 3b or 30b. beginning to show the activation current values I 1, the rated current value is I 0.
また、第１油圧パワーユニツト３と第２油圧パワーユ
ニツト30の電動機3b,30bが同時に起動した場合の電源電
流値を実線で示し、電動機3b,30bの起動開示時の起動電
流値I1の和が電源電流値I2となる。この電動機3b,30bの
電源電流のピーク値I2によつて、変圧器、電線、ブレー
カなどの電源設備が決定される。Further, the electric motor 3b of the first hydraulic Pawayunitsuto 3 second hydraulic Pawayunitsuto 30, the power supply current value when 30b is activated simultaneously indicated by the solid line, the sum of the electric motor 3b, 30b start disclose when the starting current value I 1 There is a power source current value I 2. The electric motor 3b, Yotsute the peak value I 2 of the power supply current of 30b, transformers, power lines, power supply equipment, such as circuit breaker is determined.
起動電流値I1と定格電流値I0の関係はモータによつて
も異なるが概略下記となる。Relationship activation current value I 1 and the rated current value I 0 is different even cowpea the motor becomes a schematic below.
I1≒６×I0 ……（１） つまり第１油圧パワーユニツト３と第２油圧パワーユ
ニツト30の電動機3b,30bを同時に起動した場合の起動電
流値はどちらか１台の電動機3bあるいは30bを起動した
場合の起動電流値I2と電動機3b,30bのそれぞれの定格電
流値I0の関係は下記となる。I 1 ≒ 6 × I 0 (1) In other words, when the motors 3b, 30b of the first hydraulic power unit 3 and the second hydraulic power unit 30 are simultaneously started, the starting current value is either one of the motors 3b or 30b. starting current value I 2 and the electric motor 3b when you start, each relation of the rated current value I 0 of 30b becomes the following.
I2≒12×I0 ……（２） 〔発明が解決しようとする問題点〕 従来の油圧エレベータ装置は以上のように構成されて
いるが、前記のように第１油圧パワーユニツト３と第２
油圧パワーユニツト30の電動機3b,30bが同時に起動する
と、必要な起動電流値I2はそれぞれの油圧パワーユニツ
ト3,30の電動機3b,30bが単独で起動した場合の起動電流
値I1の２倍になり、変圧器、電線、ブレーカなどの電源
設備が大きな電流用のものとなり、コスト的に高くな
り、電源設備の施工側にとつて不利なものとなつてい
た。I 2 ≒ 12 × I 0 (2) [Problems to be Solved by the Invention] Although the conventional hydraulic elevator apparatus is configured as described above, the first hydraulic power unit 3 and the second hydraulic power unit 2
Motor 3b of the hydraulic Pawayunitsuto 30 and 30b is activated simultaneously, the electric motor 3b of the activation current value I 2 required each hydraulic Pawayunitsuto 3,30, 2 times the starting current value I 1 when 30b is activated alone As a result, power supply equipment such as transformers, electric wires, and breakers are used for large currents, which increases the cost, and is disadvantageous for the construction side of the power supply equipment.
さらに、制御弁3dの駆動時刻と制御弁30dの駆動時刻
に差を設けず同時に制御弁の開閉動作を行うので、相互
に一方の制御弁の開閉による圧油流通の影響が他方の制
御弁の開閉動作に支障をきたす不都合があった。Furthermore, since there is no difference between the drive time of the control valve 3d and the drive time of the control valve 30d, the control valve is simultaneously opened and closed. There was a problem that hindered the opening and closing operation.
この発明はかかる問題点を解決するためになされたも
ので、電源電流のピーク値を小さく抑えて、電源設備も
小容量の設備で済むだけでなく、一方の制御弁の開閉に
よる圧油流通の影響が他方の制御弁の開閉動作に干渉さ
せないようにした油圧エレベータ装置を得ること目的と
する。The present invention has been made in order to solve such a problem. In addition to suppressing the peak value of the power supply current to a small value, the power supply equipment can be a small-capacity equipment. It is an object of the present invention to provide a hydraulic elevator apparatus in which the influence does not interfere with the opening and closing operation of the other control valve.
［問題を解決するための手段］ この発明にかかる油圧エレベータ装置は、かごを昇降
させる油圧ジャッキと、油圧ジャッキに圧油を供給する
第１の圧油供給手段と、油圧ジャッキに圧油を供給する
第２の圧油供給手段と、第１の圧油供給手段から油圧ジ
ャッキに供給する圧油の流量を制御する第１の制御弁
と、第２の圧油供給手段から油圧ジャッキに供給する圧
油の流量を制御する第２の制御弁と、第１の圧油供給手
段が起動してから所定の時間経過後に第２の圧油供給手
段を起動させる圧油供給手段起動手段と、第１の制御弁
が駆動してから所定の時間経過後に第２の制御弁を駆動
させる制御弁駆動手段とを備えたものである。[Means for Solving the Problem] The hydraulic elevator apparatus according to the present invention provides a hydraulic jack for raising and lowering a car, first hydraulic oil supply means for supplying hydraulic oil to the hydraulic jack, and supplying hydraulic oil to the hydraulic jack. Pressure oil supply means, a first control valve for controlling the flow rate of pressure oil supplied from the first pressure oil supply means to the hydraulic jack, and supply from the second pressure oil supply means to the hydraulic jack A second control valve for controlling the flow rate of the pressure oil, a pressure oil supply means activation means for activating the second pressure oil supply means after a lapse of a predetermined time from the activation of the first pressure oil supply means, Control valve driving means for driving the second control valve after a lapse of a predetermined time from the driving of the first control valve.
また、この発明にかかる油圧エレベータ装置は、かご
を昇降させる油圧ジャッキと、油圧ジャッキに圧油を供
給する第１の圧油供給手段と、油圧ジャッキに圧油を供
給する第２の圧油供給手段と、第１の圧油供給手段から
油圧ジャッキに供給する圧油の流量を制御する第１の制
御弁と、第２の圧油供給手段から油圧ジャッキに供給す
る圧油の流量を制御する第２の制御弁と、第１の圧油供
給手段を駆動する電動機の駆動電流が所定の電流値にな
ると、第２の圧油供給手段を駆動する電動機を起動させ
る電動機起動手段と、第１の制御弁が駆動してから所定
の時間経過後に第２の制御弁を駆動させる制御弁駆動手
段とを備えたものである。Further, the hydraulic elevator apparatus according to the present invention includes a hydraulic jack for raising and lowering the car, a first pressure oil supply means for supplying pressure oil to the hydraulic jack, and a second pressure oil supply for supplying pressure oil to the hydraulic jack. Means, a first control valve for controlling a flow rate of pressure oil supplied from the first pressure oil supply means to the hydraulic jack, and a flow rate of pressure oil supplied to the hydraulic jack from the second pressure oil supply means. A second control valve; a motor starting means for starting the motor driving the second pressure oil supply means when a drive current of the motor driving the first pressure oil supply means reaches a predetermined current value; And control valve driving means for driving the second control valve after a lapse of a predetermined time from the drive of the control valve.
［作用］ 第１の圧油供給手段と第２の圧油供給手段と圧油供給
手段起動手段とを設けたことにより、第１の圧油供給手
段の起動時刻と、第２の圧油供給手段の起動時刻との間
に時間差が生じるので、第１の圧油供給手段と第２の圧
油供給手段とを同時に起動した場合に比較して圧油供給
手段の起動初期に発生する起動電流値を小さくすること
ができ、この起動電流のピーク値により決定される電源
設備が小容量のものですむ。[Operation] By providing the first pressure oil supply unit, the second pressure oil supply unit, and the pressure oil supply unit activation unit, the start time of the first pressure oil supply unit and the second pressure oil supply Since there is a time difference between the start-up time of the means and the start-up current generated in the initial stage of the start-up of the pressurized oil supply means as compared with the case where the first and second pressurized oil supply means are started up simultaneously. The value can be reduced, and the power supply equipment determined by the peak value of the starting current can be of a small capacity.
また、第１の制御弁と第２の制御弁と制御弁駆動手段
とを設けたことにより、第１の圧油供給手段から圧油が
供給される時刻と、第２の圧油供給手段から圧油が供給
される時刻との間に時間差が生じるので、一方の制御弁
の開閉による圧油流通の影響が他方の制御弁の開閉動作
に干渉することを防止できる。Further, by providing the first control valve, the second control valve, and the control valve driving means, the time when the pressure oil is supplied from the first pressure oil supply means and the time when the second pressure oil supply means Since a time difference occurs between the time when the pressure oil is supplied and the time when the pressure oil is supplied, it is possible to prevent the influence of the pressure oil flow due to the opening and closing of one control valve from interfering with the opening and closing operation of the other control valve.
さらに、電動機起動手段を設けたことにより、第１の
圧油供給手段を駆動する電動機の運転が安定したのを確
認して、第２の圧油供給手段を駆動する電動機を運転す
ることができ、電動機の電源電流を安定させることがで
きる。Further, by providing the motor starting means, it is possible to confirm that the operation of the motor driving the first pressure oil supply means is stable, and to operate the motor driving the second pressure oil supply means. In addition, the power supply current of the motor can be stabilized.
［実施例］ 以下、この発明の油圧エレベータ装置の実施例を図に
ついて説明する。第１図はその実施例である圧油供給手
段起動手段の論理構成を示すブロック図であり、この第
１図において、５は第１油圧パワーユニツトの電動機起
動検出回路であり、６は第１油圧パワーユニツトの電動
機が起動されてから所定の時間が経過した後指令を出す
時限回路、７は第２油圧パワーユニツトの電動機起動回
路である。Embodiment An embodiment of the hydraulic elevator apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the logical configuration of the pressure oil supply means starting means according to the embodiment. In FIG. 1, reference numeral 5 denotes a motor start detection circuit of the first hydraulic power unit, and reference numeral 6 denotes the first hydraulic power unit. A timed circuit for issuing a command after a predetermined time has elapsed since the motor of the hydraulic power unit was started, and 7 is a motor start circuit of the second hydraulic power unit.
なお、以下の説明において、第８図に示した従来の油
圧エレベータ装置における各部材の名称と符号はそのま
ま援用して述べることにする。In the following description, the names and reference numerals of the members in the conventional hydraulic elevator apparatus shown in FIG. 8 will be referred to as they are.
第２図は第１油圧パワーユニツト３の制御弁3dのみを
駆動した場合の油圧エレベータの走行特性を縦軸をかご
２の速度、横軸を時間で表わした図であり、第３図は同
様に制御弁駆動手段により第２油圧パワーユニツト30の
制御弁30dを第１油圧パワーユニツト３の制御弁3dより
もt1時間遅延させて駆動した場合の油圧エレベータの走
行特性を示した図である。FIG. 2 is a diagram showing the traveling characteristics of the hydraulic elevator when only the control valve 3d of the first hydraulic power unit 3 is driven, in which the vertical axis represents the speed of the car 2 and the horizontal axis represents time, and FIG. is a graph showing the running characteristics of a hydraulic elevator when the control valve 30d of the second hydraulic Pawayunitsuto 30 driven by delaying t 1 hour than the first hydraulic Pawayunitsuto third control valve 3d by the control valve drive means .
また、第４図の一点鎖線は、第２図に示した第１油圧
パワーユニツト３を駆動した場合の油圧エレベータの走
行特性を再記したものであり、第2,3図に示すように実
線は第１油圧パワーユニツト３の制御弁3dに対して第２
油圧パワーユニツト30の制御弁30dをt1時間だけ遅延さ
せて駆動させ、それを重ね合せた場合の油圧エレベータ
の走行特性を示した図であり、これが実際の走行特性と
なつている。The dashed-dotted line in FIG. 4 rewrites the running characteristics of the hydraulic elevator when the first hydraulic power unit 3 shown in FIG. 2 is driven, and the solid line as shown in FIGS. Is the second with respect to the control valve 3d of the first hydraulic power unit 3.
The control valve 30d of the hydraulic Pawayunitsuto 30 is driven by delayed by t 1 hour, a view showing the running characteristics of a hydraulic elevator when superimposed it, this is summer the actual running characteristics.
第５図は第４図に示した走行特性に対応して電源電流
値の時間に対する特性を示したものである。ここで一点
鎖線は第１油圧パワーユニツト３の電動機3bが駆動され
た状態での電源電流値を時間に対して示すものである。FIG. 5 shows the characteristics of the power supply current value with respect to time corresponding to the running characteristics shown in FIG. Here, the alternate long and short dash line indicates a power supply current value with respect to time when the electric motor 3b of the first hydraulic power unit 3 is driven.
破線は、上記第１油圧パワーユニツト３の電動機の起
動開始からt2時間遅延させて起動させられる第２油圧パ
ワーユニツト30の電動機30bの電源電流値を時間に対し
て示したものである。ここでそれぞれの電動機3b,30bの
起動時の起動電流値をI1とし、定格電流値をI0とする。The dashed line shows the power supply current value of the electric motor 30b of the second hydraulic Pawayunitsuto 30 is caused to start by t 2 hours delay from start-motor of the first hydraulic Pawayunitsuto 3 against time. Wherein each electric motor 3b, 30b of the starting current value at startup and I 1, the rated current value I 0.
第６図は第５図に示したそれぞれの油圧パワーユニツ
ト3,30を組み合わせて駆動した場合の電源電流値を示
し、このときの起動電流値はI3となる。つまり、起動電
流値I1と定格電流記I0の関係は前記（１）式に示したよ
うにI1≒６×I0となる。Figure 6 shows the power supply current value in the case of driving by combining each of the hydraulic Pawayunitsuto 3, 30 shown in FIG. 5, the starting current value in this case is I 3. In other words, the relationship of the activation current value I 1 and the rated current Symbol I 0 becomes I 1 ≒ 6 × I 0 as shown in the equation (1).
つまり、第１油圧パワーユニツト３と第２油圧パワー
ユニツト30を重ね合わせて駆動した場合の起動電流値の
ピーク値は下記となる。That is, the peak value of the starting current value when the first hydraulic power unit 3 and the second hydraulic power unit 30 are driven in an overlapping manner is as follows.
I3＝I0＋I1＝I0＋６×I0＝７×I0 ……（３） 換言すれば、（２）式に示したように第１油圧パワー
ユニツト３の電動機3bと第２油圧パワーユニツト30の電
動機30bを同時に起動した場合の起動電流値I2は電動機3
b,30bをそれぞれ別個に起動した場合の定格電流値I0の
約12倍という大きな値になる。I 3 = I 0 + I 1 = I 0 + 6 × I 0 = 7 × I 0 (3) In other words, as shown in the equation (2), the electric motor 3b of the first hydraulic power unit 3 and the second hydraulic starting current value I 2 in the case where the start electric motor 30b to simultaneously Pawayunitsuto 30 motor 3
b, a large value of about 12 times the rated current value I 0 in the case of start 30b each separately.
これに対して、それぞれの電動機3b,30bの起動に時間
差を設けることによつて組み合せて運転した場合の起動
電流値I3は定格電流値I0の７倍と小さな値となる。In contrast, it respective motor 3b, the starting current value I 3 in the case of operating in combination connexion by the providing the time difference to start 30b and seven times the rated current value I 0 a small value.
これによつて、変圧器、電線、ブレーカなどの電源設
備が小容量のもので済み、コスト的に安価なものとな
る。As a result, power supply equipment such as transformers, electric wires, and breakers need only be of small capacity, and the cost is low.
また第２図ないし第６図に示すように、第１油圧パワ
ーユニツト３の電動機3bが起動し、起動電流値I1が定格
電流値I0になつた直後に制御弁3dを作動させ、第１油圧
パワーユニツト３のみでジヤツキ１に圧油を供給するこ
とにより、かご２を上昇走行させ、その後第２油圧パワ
ーユニツト30の電動機30bが起動し、起動電流値I1が定
格電流値I0になつた直後に、制御弁30dを作動させ、ジ
ヤツキ１に油に供給し、第１油圧パワーユニツト３と第
２油圧パワーユニツト30の駆動が組み合わされて、かご
２を上昇走行させる。Further, as shown in FIG. 2 through FIG. 6, the electric motor 3b of the first hydraulic Pawayunitsuto 3 starts and operates the control valve 3d immediately after starting current value I 1 has decreased to the rated current value I 0, the by supplying pressure oil to the first hydraulic Pawayunitsuto 3 only jacks 1, the car 2 is raised traveling, then the electric motor 30b of the second hydraulic Pawayunitsuto 30 is started, the starting current value I 1 is the rated current value I 0 Immediately thereafter, the control valve 30d is operated to supply oil to the jack 1, and the driving of the first hydraulic power unit 3 and the second hydraulic power unit 30 is combined to cause the car 2 to travel upward.
このようにすることにより、第１油圧パワーユニツト
３と第２油圧パワーユニツト30の電動機3b,30bを同時に
起動し、その後制御弁3d,30dを同時に作動させた場合と
同様なかご２の走行が可能となる。In this way, the car 2 travels in the same manner as when the motors 3b, 30b of the first hydraulic power unit 3 and the second hydraulic power unit 30 are simultaneously activated, and then the control valves 3d, 30d are simultaneously activated. It becomes possible.
なお、上記実施例では、第１油圧パワーユニツト３の
電動機起動検出回路５の信号を受けて時限回路６によつ
て所定の時間経過後に信号を出し第２油圧パワーユニツ
ト30の電動機30bの起動を開始するように構成したもの
を示したが、第７図は電動機起動手段の論理構成を示す
ブロック図であり、第１油圧パワーユニツト３の電動機
起動検出回路８の信号が“H"で、つまり電動機が起動さ
れた場合で、また第１のパワーユニツト３の電動機電流
値検出回路９が、所定の電流値すなわち、電動機が起動
完了することによって低くなった電動機の運転電流値で
あることを検出して信号が“H"となり、AND回路10が上
記二つの信号を受けて“H"信号を出力し、第２油圧パワ
ーユニツト３の電動機起動指令回路11より“H"信号が出
力され、第２油圧パワーユニツト30の電動機30bが起動
されることになる。In the above embodiment, the signal from the motor start-up detection circuit 5 of the first hydraulic power unit 3 is received, and a signal is output by the time limit circuit 6 after a predetermined time has elapsed to start the motor 30b of the second hydraulic power unit 30. FIG. 7 is a block diagram showing the logical configuration of the motor starting means. The signal of the motor starting detection circuit 8 of the first hydraulic power unit 3 is "H", that is, When the motor is started, the motor current value detection circuit 9 of the first power unit 3 detects that the motor has a predetermined current value, that is, the operating current value of the motor that has been lowered by the completion of the motor startup. As a result, the signal becomes “H”, the AND circuit 10 receives the above two signals and outputs an “H” signal, and the motor start command circuit 11 of the second hydraulic power unit 3 outputs an “H” signal. 2 hydraulic power uni So that the electric motor 30b of the door 30 is started.
第１の圧油供給手段と第２の圧油供給手段と圧油供給
手段起動手段とを設けたことにより、第１の圧油供給手
段の起動時刻と、第２の圧油供給手段の起動時刻との間
に時間差が生じるので、第１の圧油供給手段と第２の圧
油供給手段とを同時に起動した場合に比較して圧油供給
手段の起動初期に発生する起動電流値を小さくすること
ができ、この起動電流のピーク値により決定される電源
設備が小容量のものですみ、コストの安価な油圧エレベ
ータ装置を得ることができる。By providing the first pressure oil supply means, the second pressure oil supply means, and the pressure oil supply means activation means, the activation time of the first pressure oil supply means and the activation of the second pressure oil supply means Since a time difference occurs between the time and the time, the starting current value generated in the initial stage of starting the pressure oil supply means is smaller than when the first pressure oil supply means and the second pressure oil supply means are started simultaneously. The power supply equipment determined by the peak value of the starting current requires only a small capacity, and a low-cost hydraulic elevator apparatus can be obtained.
また、第１の制御弁と第２の制御弁と制御弁駆動手段
とを設けたことにより、第１の圧油供給手段から圧油が
供給される時刻と、第２の圧油供給手段から圧油が供給
される時刻との間に時間差が生じるので、一方の制御弁
の開閉による圧油流通の影響が他方の制御弁の開閉動作
に干渉することを排除できるだけでなく、第１の圧油供
給手段又は第２の圧油供給手段の起動と同時に圧油が唐
突に装置に流通することを防いで、配管や油圧計、流量
計等の油圧回路機器への負荷を低減することができる。Further, by providing the first control valve, the second control valve, and the control valve driving means, the time when the pressure oil is supplied from the first pressure oil supply means and the time when the second pressure oil supply means Since a time difference occurs between the time when the pressure oil is supplied and the time when the pressure oil is supplied, it is possible not only to eliminate the influence of the pressure oil flow due to the opening and closing of one control valve from interfering with the opening and closing operation of the other control valve, but also to reduce the first pressure The pressure oil can be prevented from flowing abruptly to the device simultaneously with the activation of the oil supply means or the second pressure oil supply means, and the load on hydraulic circuit devices such as piping, an oil pressure gauge, and a flow meter can be reduced. .
さらに、電動機起動手段を設けたことにより、第１の
圧油供給手段を駆動する電動機の運転が安定したのを確
認して、第２の圧油供給手段を駆動する電動機を運転す
ることができ、電動機の電源電流を安定させることがで
きる。Further, by providing the motor starting means, it is possible to confirm that the operation of the motor driving the first pressure oil supply means is stable, and to operate the motor driving the second pressure oil supply means. In addition, the power supply current of the motor can be stabilized.
第１図はこの発明の油圧エレベータ装置の一実施例を示
すブロック図、第２図はこの発明の油圧エレベー装置に
おける第１油圧パワーユニツトを駆動した場合のかご走
行特性を示す図、第３図はこの発明の油圧エレベータ装
置における第２油圧パワーユニツトを駆動した場合のか
ごの走行特性を示す図、第４図はこの発明の油圧エレベ
ータ装置における第１油圧パワーユニツトおよび第２油
圧パワーユニツトを組み合わせて駆動したかごの走行特
性を示す図、第５図はこの発明の油圧エレベータ装置に
おける第１、第２油圧パワーユニツトのそれぞれの電動
機の電源電流値をかごの走行に対応して示した図、第６
図はこの発明の油圧エレベータ装置における第１、第２
油圧パワーユニツトの電動機の起動に時間差を設け組み
合わせて運転した場合にたし合わされた電源電流値をか
ごの走行に対応して示した図、第７図はこの発明の油圧
エレベータ装置の他の実施例を示すブロック図、第８図
は従来の油圧エレベータ装置を示す正面図、第９図は従
来の油圧エレベータ装置における第１油圧パワーユニツ
トを駆動した場合のかごの走行特性を示す図、第10図は
従来の油圧エレベータ装置における第２油圧パワーユニ
ツトを駆動した場合のかごの走行特性を示す図、第11図
は従来の油圧エレベータ装置における第１および第２油
圧パワーユニツトを組み合わせて駆動した場合のかごの
走行特性を示す図、第12図は従来の油圧エレベータ装置
における第１、第２油圧パワーユニツトのそれぞれの電
動機の電源電流値と第１、第２油圧パワーユニツトの電
動機の起動を同時に行つてそれらをたし合わせた電源電
流値をかごの走行に対応して示した図である。 １……油圧ジヤツキ、２……かご、３……第１油圧パワ
ーユニツト、3a,30a……油タンク、 3b,30b……電動機、3c,30c……油圧ポンプ、3d,30d……
制御弁、5,8……第１油圧パワーユニツトの電動機起動
検出回路、６……時限回路、７……第２油圧パワーユニ
ツトの電動機起動回路、９……第１油圧パワーユニツト
の電動機電流値検出回路、10……AND回路、11……第２
油圧パワーユニツトの電動機起動指令回路、 なお、図中同一符号は同一または相当部分を示す。FIG. 1 is a block diagram showing an embodiment of a hydraulic elevator apparatus according to the present invention. FIG. 2 is a view showing car running characteristics when a first hydraulic power unit is driven in the hydraulic elevator apparatus according to the present invention. FIG. 4 is a view showing running characteristics of a car when a second hydraulic power unit in the hydraulic elevator apparatus of the present invention is driven. FIG. 4 is a diagram showing a combination of the first hydraulic power unit and the second hydraulic power unit in the hydraulic elevator apparatus of the present invention. FIG. 5 is a diagram showing the running characteristics of a car driven by a car, and FIG. 5 is a diagram showing the power supply current values of the respective electric motors of the first and second hydraulic power units in the hydraulic elevator apparatus of the present invention, corresponding to the running of the car. Sixth
The figure shows the first and second hydraulic elevator devices of the present invention.
FIG. 7 is a diagram showing the combined power supply current value corresponding to the travel of the car when the motors of the hydraulic power unit are started and combined with a time difference, and FIG. 7 shows another embodiment of the hydraulic elevator apparatus of the present invention. FIG. 8 is a block diagram showing an example, FIG. 8 is a front view showing a conventional hydraulic elevator apparatus, FIG. 9 is a view showing traveling characteristics of a car when a first hydraulic power unit in the conventional hydraulic elevator apparatus is driven, FIG. FIG. 11 is a diagram showing the traveling characteristics of the car when the second hydraulic power unit in the conventional hydraulic elevator is driven. FIG. 11 is a diagram showing the case where the first and second hydraulic power units in the conventional hydraulic elevator are driven in combination. FIG. 12 shows the running characteristics of a car and FIG. 12 shows the power supply current values of the respective motors of the first and second hydraulic power units in the conventional hydraulic elevator system. 1 is a diagram showing a power supply current value starting the electric motor was simultaneously combined plus means pursuant their second hydraulic Pawayunitsuto in response to the running of the car. 1 ... hydraulic jack, 2 ... basket, 3 ... first hydraulic power unit, 3a, 30a ... oil tank, 3b, 30b ... electric motor, 3c, 30c ... hydraulic pump, 3d, 30d ...
Control valve, 5, 8 ... Motor start detection circuit of first hydraulic power unit, 6 ... Timer circuit, 7 ... Motor start circuit of second hydraulic power unit, 9 ... Motor current value of first hydraulic power unit Detection circuit, 10 AND circuit, 11 second
Motor start command circuit of hydraulic power unit. The same reference numerals in the drawings denote the same or corresponding parts.
Claims (2)
圧ジャッキに圧油を供給する第１の圧油供給手段と、前
記油圧ジャッキに圧油を供給する第２の圧油供給手段
と、前記第１の圧油供給手段から前記油圧ジャッキに供
給する圧油の流量を制御する第１の制御弁と、前記第２
の圧油供給手段から前記油圧ジャッキに供給する圧油の
流量を制御する第２の制御弁と、前記第１の圧油供給手
段が起動してから所定の時間経過後に前記第２の圧油供
給手段を起動させる圧油供給手段起動手段と、前記第１
の制御弁が駆動してから所定の時間経過後に前記第２の
制御弁を駆動させる制御弁駆動手段とを備えたことを特
徴とする油圧エレベータ装置。1. A hydraulic jack for raising and lowering a car, first hydraulic oil supply means for supplying hydraulic oil to the hydraulic jack, second hydraulic oil supply means for supplying hydraulic oil to the hydraulic jack, A first control valve for controlling a flow rate of pressure oil supplied from the first pressure oil supply means to the hydraulic jack;
A second control valve for controlling the flow rate of pressure oil supplied from the pressure oil supply means to the hydraulic jack, and the second pressure oil after a lapse of a predetermined time since the first pressure oil supply means is activated. Pressure oil supply means activation means for activating the supply means;
And a control valve driving means for driving the second control valve after a lapse of a predetermined time from the drive of the control valve.
圧ジャッキに圧油を供給する第１の圧油供給手段と、前
記油圧ジャッキに圧油を供給する第２の圧油供給手段
と、前記第１の圧油供給手段から前記油圧ジャッキに供
給する圧油の流量を制御する第１の制御弁と、前記第２
の圧油供給手段から前記油圧ジャッキに供給する圧油の
流量を制御する第２の制御弁と、前記第１の圧油供給手
段を駆動する電動機の駆動電流が所定の電流値になる
と、前記第２の圧油供給手段を駆動する電動機を起動さ
せる電動機起動手段と、前記第１の制御弁が駆動してか
ら所定の時間経過後に前記第２の制御弁を駆動させる制
御弁駆動手段とを備えたことを特徴とする油圧エレベー
タ装置。2. A hydraulic jack for raising and lowering a car, first hydraulic oil supply means for supplying hydraulic oil to the hydraulic jack, second hydraulic oil supply means for supplying hydraulic oil to the hydraulic jack, A first control valve for controlling a flow rate of pressure oil supplied from the first pressure oil supply means to the hydraulic jack;
A second control valve for controlling a flow rate of pressure oil supplied from the pressure oil supply means to the hydraulic jack, and a drive current of an electric motor for driving the first pressure oil supply means having a predetermined current value; An electric motor starting means for starting an electric motor for driving the second pressure oil supply means, and a control valve driving means for driving the second control valve after a lapse of a predetermined time after the driving of the first control valve. A hydraulic elevator apparatus comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60092657A JP2620065B2 (en) | 1985-04-30 | 1985-04-30 | Hydraulic elevator equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60092657A JP2620065B2 (en) | 1985-04-30 | 1985-04-30 | Hydraulic elevator equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61254477A JPS61254477A (en) | 1986-11-12 |
| JP2620065B2 true JP2620065B2 (en) | 1997-06-11 |
Family
ID=14060537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60092657A Expired - Lifetime JP2620065B2 (en) | 1985-04-30 | 1985-04-30 | Hydraulic elevator equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2620065B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016132604A1 (en) * | 2015-02-19 | 2016-08-25 | 三浦工業株式会社 | Boiler device and control method for same |
-
1985
- 1985-04-30 JP JP60092657A patent/JP2620065B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61254477A (en) | 1986-11-12 |
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