JPH0229591B2 - - Google Patents
Info
- Publication number
- JPH0229591B2 JPH0229591B2 JP59068886A JP6888684A JPH0229591B2 JP H0229591 B2 JPH0229591 B2 JP H0229591B2 JP 59068886 A JP59068886 A JP 59068886A JP 6888684 A JP6888684 A JP 6888684A JP H0229591 B2 JPH0229591 B2 JP H0229591B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil tank
- hydraulic
- amount
- hydraulic power
- 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
- 238000010586 diagram Methods 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Types And Forms Of Lifts (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、１つの油圧ジヤツキに複数の油圧パ
ワーユニツトが接続されて成る油圧エレベータ装
置、又は１つの油圧ジヤツキに少なくとも１つの
油圧パワーユニツトが接続されるとともに少なく
とも１つの補助油槽を備えた油圧エレベータ装置
などのごとく、１つの油圧ジヤツキに圧油を流通
させる少なくとも１つの油圧パワーユニツトと少
なくとも１つの他の油槽とを備える油圧エレベー
タ装置に関する。Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a hydraulic elevator system in which a plurality of hydraulic power units are connected to one hydraulic jack, or a hydraulic elevator system in which at least one hydraulic power unit is connected to one hydraulic jack. The present invention relates to a hydraulic elevator system comprising at least one hydraulic power unit for distributing pressure oil to one hydraulic jack and at least one other oil tank, such as a hydraulic elevator system equipped with at least one auxiliary oil tank.
〔従来技術〕
第１図は従来の油圧エレベータ装置を示す概略
説明図である。図において１で示すものは油圧ジ
ヤツキ、２はこれに支持されたエレベータのか
ご、３は第１油圧パワーユニツトである。この第
１油圧パワーユニツト３は、油槽３ａ、電動機で
駆動される油圧ポンプ３ｂ、油槽３ａに連通され
かつ油圧ポンプ３ｂに接続された制御弁３ｃ、該
制御弁３ｃによつて流量制御された油を油槽３ａ
に返還するための戻り配管５から成る。３′で示
すものは第１油圧パワーユニツト３と同じ構成を
有する第２油圧パワーユニツトであり、油槽３′
ａ、油圧ポンプ３′ｂ、制御弁３′ｃ、戻り配管
５′から成る。両油圧パワーユニツト３，３′圧油
を供給する供給配管４を介して油圧ジヤツキ１に
接続されている。また両油槽３ａ，３′ａは油槽
連結管６にて連通接続されている。[Prior Art] FIG. 1 is a schematic explanatory diagram showing a conventional hydraulic elevator system. In the figure, 1 is a hydraulic jack, 2 is an elevator car supported by the jack, and 3 is a first hydraulic power unit. The first hydraulic power unit 3 includes an oil tank 3a, a hydraulic pump 3b driven by an electric motor, a control valve 3c communicating with the oil tank 3a and connected to the hydraulic pump 3b, and an oil whose flow rate is controlled by the control valve 3c. Oil tank 3a
It consists of a return pipe 5 for returning to. 3' is a second hydraulic power unit having the same configuration as the first hydraulic power unit 3, and an oil tank 3'.
a, a hydraulic pump 3'b, a control valve 3'c, and a return pipe 5'. Both hydraulic power units 3, 3' are connected to the hydraulic jack 1 via a supply pipe 4 for supplying pressure oil. Further, both oil tanks 3a and 3'a are connected to each other through an oil tank connecting pipe 6.
上記装置は圧油を油圧ジヤツキ１に供給するこ
とによりかご２を上昇させ、かご２の重量によつ
て油圧ジヤツキ１から排出される圧油を制御弁３
ｃ，３′ｃを介して帰還させてかご２を下降させ
るものである。 The above device raises the car 2 by supplying pressure oil to the hydraulic jack 1, and the pressure oil discharged from the hydraulic jack 1 due to the weight of the car 2 is transferred to the control valve 3.
c and 3'c to lower the car 2.
ところで、標準化され比較的小形の油圧パワー
ユニツトを準備し、油圧エレベータの積載量及び
昇降行程等の異なる仕様に対して油圧パワーユニ
ツトを必要台数配置して対応しようとするものが
上記装置であり、油圧パワーユニツトの生産性を
向上すことができ、かつ油圧エレベータ装置の容
量が大容量又は小容量であつても標準化された油
圧パワーユニツトを必要台数だけ油圧ジヤツキに
接続すれば容易に所望容量の油圧エレベータ装置
に対応することができるという利点を有するのの
である。 By the way, the above-mentioned device is designed to prepare standardized and relatively small-sized hydraulic power units and arrange the required number of hydraulic power units to accommodate different specifications such as the loading capacity and lifting stroke of a hydraulic elevator. The productivity of the hydraulic power unit can be improved, and even if the capacity of the hydraulic elevator equipment is large or small, the desired capacity can be easily achieved by connecting the required number of standardized hydraulic power units to the hydraulic jack. This has the advantage of being compatible with hydraulic elevator systems.
また複数の油圧パワーユニツトを接続した場
合、各ユニツトは独立に油槽を有しているので、
夫々の油圧パワーユニツトからの圧油の供給量と
圧油の帰還量とに僅かでも差が生ずると、エレベ
ータの運転を繰返すうちにこの誤差が累積し、い
ずれかの油槽は油があふれたり不足したりするこ
とになり、複数の油圧パワーユニツトによる所要
の機能が得られず、油圧エレベータ装置の正常な
運転が不可能になつてしまう。上記装置はこの点
を考慮して両油槽３ａ，３′ａが油槽連結管６に
て連通接続されている。これは、両油圧パワーユ
ニツト３，３′における圧油の流量が不同であつ
ても夫々の油槽３ａ，３′ａの圧油の過不足を補
い正常な機能を得られると期待したものである。
確かに圧油の送出量と帰還量が少ない場合には圧
油の過不足を補うことができ効果を期待すること
はできる。 Also, when multiple hydraulic power units are connected, each unit has an independent oil tank, so
If there is even a slight difference between the amount of pressure oil supplied from each hydraulic power unit and the amount of pressure oil returned, this error will accumulate as the elevator is operated repeatedly, resulting in overflow or insufficient oil in one of the oil tanks. As a result, the required functions cannot be obtained by the plurality of hydraulic power units, and normal operation of the hydraulic elevator system becomes impossible. In consideration of this point, in the above device, both oil tanks 3a and 3'a are connected to each other through an oil tank connecting pipe 6. This is in the hope that even if the flow rates of pressure oil in both hydraulic power units 3 and 3' are different, the excess and deficiency of pressure oil in the respective oil tanks 3a and 3'a can be compensated for and normal functionality can be achieved. .
It is true that when the amount of pressure oil sent out and the amount of return is small, the excess or deficiency of pressure oil can be compensated for, and an effect can be expected.
しかしながら、油圧パワーユニツトにおける送
出量と帰還量との差が経年的、或いは制御弁の調
整状態によつて増大するものや、また夫々の油圧
パワーユニツトにおいて設計上かご上昇時の油圧
ジヤツキへの送油量とかご下降時の油圧ジヤツキ
からの帰還量とを故意に変えることによつてかご
の速度制御を簡略化するものもあるので、従来装
置のように夫々油槽３ａ，３′ａ内の油面高さの
差による圧力差に依存することにより油槽連結管
６を通して油槽３ａ，３′ａ内の油量を補正する
方式では、油槽連結管６を非常に太いものにしな
ければならなかつたり、或いは稼働量の多い装置
では油槽のいずれかは油があふれたり不足したり
して正常な運転が阻害されるという欠点があつ
た。 However, the difference between the sending amount and the returning amount in the hydraulic power unit may increase over time or due to the adjustment status of the control valve, or the difference in the sending amount to the hydraulic jack when the car is raised may increase due to the design of each hydraulic power unit. Some devices simplify the speed control of the car by intentionally changing the amount of oil and the amount of feedback from the hydraulic jack when the car is lowered. In the method of correcting the amount of oil in the oil tanks 3a, 3'a through the oil tank connecting pipe 6 by relying on the pressure difference due to the difference in surface height, the oil tank connecting pipe 6 must be made very thick. Alternatively, in a device that operates in a large amount, there is a drawback that one of the oil tanks may overflow or run out of oil, impeding normal operation.
またこの欠点は複数の油圧パワーユニツトを油
圧ジヤツキに接続した構造のものにあてはまるだ
けではなく、油槽を有する油圧パワーユニツトと
この油槽に接続された補助油槽とを備えた装置に
ついても同様に生ずるものである。 Furthermore, this drawback not only applies to devices with a structure in which multiple hydraulic power units are connected to a hydraulic jack, but also occurs in devices equipped with a hydraulic power unit having an oil tank and an auxiliary oil tank connected to this oil tank. It is.
なお、この他同種の従来技術として実開昭57−
123369号公報、特開昭56−49401号公報、および
特開昭57−131679号公報がある。 In addition, as a similar conventional technology,
123369, JP-A-56-49401, and JP-A-57-131679.
本発明はかかる欠点を改善する目的でなされた
ものであり、全ての油槽を油槽連結管で接続する
とともに、全ての制御弁の戻し配管を接続しこれ
を上記油槽連結管に接続することにより、各油槽
の油量の過不足を確実に補正することができる油
圧エレベータ装置を提案するものである。
The present invention was made for the purpose of improving such drawbacks, and by connecting all the oil tanks with oil tank connecting pipes, and connecting the return pipes of all the control valves to the oil tank connecting pipes, The present invention proposes a hydraulic elevator system that can reliably correct excess or deficiency in the amount of oil in each oil tank.
第２図は本発明の一実施例を示す概略説明図で
ある。第１図と同一部材には同符号を付してその
詳細な説明を省略する。異なる構成は両戻り配管
５，５′を連結し、連結したものと上記油槽連結
管６とを合流管７で連結したことである。
FIG. 2 is a schematic explanatory diagram showing an embodiment of the present invention. Components that are the same as those in FIG. 1 are given the same reference numerals, and detailed explanation thereof will be omitted. The different structure is that both return pipes 5, 5' are connected, and the connected pipe and the oil tank connecting pipe 6 are connected by a confluence pipe 7.
しかしてかご２が上昇及び下降する際に制御弁
３ｃ，３′ｃを通過して戻り配管５，５′に流通す
る流量がさそれぞれ異なる場合であつても、上記
合流管７で１つの流れにした後に各油槽３ａ，
３′ａに戻されることになるので、各油槽３ａ，
３′ａに戻し込まれる油量は同一となり、夫々油
圧パワーユニツトの送油量と帰還量とがどのよう
に異なつても、夫々の油槽３ａ，３′ａから油が
あふれたり又は不足したりすることはない。また
従来のように油槽の油面高さの差による圧力差に
よつてだけ油槽内の油量を補正するわけではない
ので、従来の油槽連結管よりも径の細いものを使
用することができる。また仮に夫々の油槽３ａ，
３′ａの油面高さが異なつたとしても、油槽３ａ，
３′ａ内の油の圧力の関係から油面の高い油槽へ
の流入量は少なくなり、一方油の低い油槽への流
入量は多くなり、結局のところは同一の油面高さ
となり、油槽から油があふれたり不足したりする
といつたことを確実に防止することができる。 However, even if the flow rates that pass through the control valves 3c and 3'c and flow into the return pipes 5 and 5' when the car 2 moves up and down are different, one flow is generated in the confluence pipe 7. After each oil tank 3a,
3'a, each oil tank 3a,
The amount of oil returned to tank 3'a will be the same, and no matter how different the amount of oil sent from each hydraulic power unit and the amount of oil returned, there will be no overflow or shortage of oil from each oil tank 3a, 3'a. There's nothing to do. Also, since the amount of oil in the oil tank is not corrected only by the pressure difference due to the difference in oil level height in the oil tank as in the past, it is possible to use a pipe with a smaller diameter than the conventional oil tank connection pipe. . Also, suppose each oil tank 3a,
Even if the oil level height of tank 3'a is different, oil tank 3a,
Due to the oil pressure in 3'a, the amount flowing into the oil tank where the oil level is high will decrease, while the amount flowing into the oil tank where the oil level is low will increase, and in the end the oil level will remain the same and the oil tank It is possible to reliably prevent accidents caused by oil overflow or shortage.
第３図は本発明の他の実施例を示す概略説明図
である。第１図に示すものと同一部材には同符号
を付してその詳細な説明を省略する。異なる構成
は先ず１つの油圧パワーユニツトの代りに補助油
槽８を有することである。積載自量の大きなもの
や昇降工程の大きな油圧エレベータでは強度上大
形の油圧ジヤツキを必要とし、それに伴い必要油
量も多くなつてくるが、油槽だけ特別に大きなも
のとすると搬入が困難であつたり、特別仕様のも
のを製造しなければならないため、上述のよう
に、必要数だけ補助油槽を増設して対応するもの
である。そして補助油槽８と油槽３ａとは油槽連
結管６て連結され、さらに戻り管５は合流管７を
介して連結される、しかして該構成にあつても上
記実施例同様油槽３ａと補助油槽８との油面高さ
な常に同一となり、油槽から油があふれたり不足
することはない。 FIG. 3 is a schematic explanatory diagram showing another embodiment of the present invention. Components that are the same as those shown in FIG. 1 are given the same reference numerals, and detailed explanation thereof will be omitted. The different configuration consists first of all in having an auxiliary oil tank 8 instead of one hydraulic power unit. Hydraulic elevators that have a large payload or a large lifting process require a large hydraulic jack for strength reasons, and the amount of oil required increases accordingly, but if the oil tank is especially large, it will be difficult to transport. In order to cope with this problem, as mentioned above, the required number of auxiliary oil tanks must be added. The auxiliary oil tank 8 and the oil tank 3a are connected through an oil tank connecting pipe 6, and the return pipe 5 is connected through a merging pipe 7. Even in this configuration, the oil tank 3a and the auxiliary oil tank 8 The oil level will always remain the same, and there will be no oil overflow or shortage from the oil tank.
なお上記実施例は一例であり本発明の要旨の範
囲内において種々の変形実施ができるとことは言
うまでもない。例えば油圧パワーユニツトの接続
台数は２台以上であつても同様である。また油圧
パワーユニツトと補助油槽との組合わせ台数も各
１台以上の複数台とすることができる。 It should be noted that the above embodiment is merely an example, and it goes without saying that various modifications can be made within the scope of the gist of the present invention. For example, the same applies even if the number of hydraulic power units connected is two or more. Further, the number of combinations of the hydraulic power unit and the auxiliary oil tank can be one or more.
以上述べたように、本発明によれば、全ての油
槽を油槽連結管で接続するとともに、全ての制御
弁の戻し配管を接続しこれを上記油槽連結管に接
続するようにしているので、かごが上昇及び下降
する際に各制御弁を通過して各戻し配管に流通す
る流量がそれぞれ異なる場合であつても、これら
を接続合流させて１つの流れにした後に各油槽に
戻されることになるので、各油槽に戻し込まれる
油量は同一となり、個々の油圧パワーユニツトの
送油量と帰還量がどのように異なつても、夫々の
油槽から油があふれたり又は不足したりすること
はなく、また従来のように油槽の油面高さの差に
よる圧力差によつてだけ油槽内の油量を補正する
わけではないので、従来の油槽連結管よりも径の
細いものを使用することができるのみならず、ま
た仮に夫々の油槽の油面高さが異なつたとして
も、油槽内の油の圧力の関係から油面の高い油槽
への流入量は少なくなり、一方油面の低い油槽へ
の流入量は多くなり、結局のところは同一の油面
高さとなり、油槽からあふれたり不足したりする
といつたことがなくなり、各油槽の流量の過不足
を確実に補正することができる。
As described above, according to the present invention, all the oil tanks are connected by the oil tank connecting pipes, and the return pipes of all the control valves are connected to the oil tank connecting pipes. Even if the flow rates that pass through each control valve and flow to each return pipe when the oil rises and falls are different, they are connected and merged into a single flow before being returned to each oil tank. Therefore, the amount of oil returned to each oil tank is the same, and no matter how different the amount of oil sent and returned from each hydraulic power unit is, there will be no overflow or shortage of oil from each oil tank. Also, since the amount of oil in the oil tank is not corrected only by the pressure difference due to the difference in oil level height in the oil tank as in the past, it is possible to use a pipe with a smaller diameter than the conventional oil tank connection pipe. Not only is this possible, but even if the oil level height of each oil tank is different, due to the oil pressure in the tank, the amount of oil flowing into the tank with a higher oil level will be smaller, while the amount of oil flowing into an oil tank with a lower oil level will be smaller. The amount of inflow increases, and the oil level remains the same after all, so there is no problem of overflow or shortage from the oil tank, and excess or deficiency in the flow rate of each oil tank can be reliably corrected.
第１図は従来の油圧エレベータ装置を示す概略
説明図、第２図は本発明の一実施例装置を示す概
略説明図、第３図は本発明の他の実施例装置を示
す概略説明図である。
１：油圧ジヤツキ、３，３′：油圧パワーユニ
ツト、３ａ，３′ａ：油槽、３ｃ，３′ｃ：制御
弁、５，５′：戻し配管、６：油槽連結管、８：
油槽（補助油槽）。
FIG. 1 is a schematic explanatory diagram showing a conventional hydraulic elevator device, FIG. 2 is a schematic explanatory diagram showing one embodiment of the device of the present invention, and FIG. 3 is a schematic explanatory diagram showing another embodiment of the device of the present invention. be. 1: Hydraulic jack, 3, 3': Hydraulic power unit, 3a, 3'a: Oil tank, 3c, 3'c: Control valve, 5, 5': Return piping, 6: Oil tank connection pipe, 8:
Oil tank (auxiliary oil tank).
Claims (1)
の油圧ジヤツキに接続されて該油圧ジヤツキに圧
油を流通させる少なくとも１つの油圧パワーユニ
ツトと少なくとも１つの他の油槽とを備えるもの
において、全ての油槽を油槽連結管で接続すると
ともに、全ての制御弁の戻し配管を接続しこれを
上記油槽連結管に接続して成ることを特徴とする
油圧エレベータ装置。 ２ 他の油槽は制御弁を備えた油圧パワーユニツ
トの油槽である特許請求の範囲第１項に記載の油
圧エレベータ装置。 ３ 他の油槽は補助油槽である特許請求の範囲第
１項に記載の油圧エレベータ装置。[Scope of Claims] 1. At least one hydraulic power unit that includes an oil tank and a control valve that communicates with the oil tank and is connected to one hydraulic jack and allows pressure oil to flow through the hydraulic jack, and at least one other oil tank. 1. A hydraulic elevator system, characterized in that all oil tanks are connected by oil tank connecting pipes, and return pipes of all control valves are connected to the oil tank connecting pipes. 2. The hydraulic elevator system according to claim 1, wherein the other oil tank is an oil tank of a hydraulic power unit equipped with a control valve. 3. The hydraulic elevator system according to claim 1, wherein the other oil tank is an auxiliary oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6888684A JPS60213681A (en) | 1984-04-06 | 1984-04-06 | Hydraulic elevator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6888684A JPS60213681A (en) | 1984-04-06 | 1984-04-06 | Hydraulic elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60213681A JPS60213681A (en) | 1985-10-25 |
| JPH0229591B2 true JPH0229591B2 (en) | 1990-06-29 |
Family
ID=13386582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6888684A Granted JPS60213681A (en) | 1984-04-06 | 1984-04-06 | Hydraulic elevator device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60213681A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372301U (en) * | 1986-10-29 | 1988-05-14 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57123369A (en) * | 1981-01-22 | 1982-07-31 | Taisei Corp | Application of sleeves |
| JPS5841770B2 (en) * | 1977-09-20 | 1983-09-14 | 株式会社日立製作所 | semiconductor equipment |
| JPS5948363A (en) * | 1982-09-09 | 1984-03-19 | 株式会社東芝 | Power unit device for hydraulic elevator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841770U (en) * | 1981-09-17 | 1983-03-19 | 株式会社東芝 | Hydraulic elevator drive device |
-
1984
- 1984-04-06 JP JP6888684A patent/JPS60213681A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841770B2 (en) * | 1977-09-20 | 1983-09-14 | 株式会社日立製作所 | semiconductor equipment |
| JPS57123369A (en) * | 1981-01-22 | 1982-07-31 | Taisei Corp | Application of sleeves |
| JPS5948363A (en) * | 1982-09-09 | 1984-03-19 | 株式会社東芝 | Power unit device for hydraulic elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60213681A (en) | 1985-10-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |