JPH0318582A - Hydraulic power unit for hydraulic elevator - Google Patents
Hydraulic power unit for hydraulic elevatorInfo
- Publication number
- JPH0318582A JPH0318582A JP1150237A JP15023789A JPH0318582A JP H0318582 A JPH0318582 A JP H0318582A JP 1150237 A JP1150237 A JP 1150237A JP 15023789 A JP15023789 A JP 15023789A JP H0318582 A JPH0318582 A JP H0318582A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- oil
- power unit
- electric motor
- tank
- 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
- 239000003921 oil Substances 0.000 claims description 52
- 239000010720 hydraulic oil Substances 0.000 claims description 43
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は油圧エレベータの油圧パワーユニットに関す
るものであり、特に、油タンク内に電動機及び油圧ポン
プを設けた油圧エレベータの油圧［従来の技術］
第３図は、特開昭６２−２７５９８６号公報に記載され
ている従来の油圧エレベータの油圧パワーユニットを示
す正面から見た縦断面図である。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a hydraulic power unit for a hydraulic elevator, and particularly relates to a hydraulic power unit for a hydraulic elevator having an electric motor and a hydraulic pump in an oil tank [Prior Art] FIG. 3 is a vertical cross-sectional view from the front showing a hydraulic power unit of a conventional hydraulic elevator described in Japanese Unexamined Patent Publication No. 62-275986.
図において、（１）は油タンク、（２）はこの油タンク
（１）内に貯溜されている作動油、（３）は油タンク（
１）内の作動油（２）中に浸漬した状態で配設されてい
る電動機である。（４）は電動機（３）により駆動して
作動油（２）を吐出する油圧ボンブであり、電動機（３
）と同様に油タンク（１）内の作動油（２）中に浸漬さ
れている。In the figure, (1) is the oil tank, (2) is the hydraulic oil stored in this oil tank (1), and (3) is the oil tank (
The electric motor is immersed in hydraulic oil (2) in (1). (4) is a hydraulic bomb that is driven by an electric motor (3) to discharge hydraulic oil (2);
) is immersed in hydraulic oil (2) in the oil tank (1).
（５）は油圧ポンプ（４）に接続され作動油（２）を吐
出す吐出管、（６）は吐出管（５）に接続されて流量制
御弁として機能する油圧バルブである。(5) is a discharge pipe that is connected to the hydraulic pump (4) and discharges the hydraulic oil (2), and (6) is a hydraulic valve that is connected to the discharge pipe (5) and functions as a flow rate control valve.
この油圧バルブ（６）は油圧ポンプ（４）から吐出され
る作動油（２）を被作動部に送出する動作と、逆に、被
作動部から戻る作動油（２）を油タンク（１）内に環流
する動作とを切換えるとともに、作動油（２）の流量の
調整をする。（７）は作動油（２）により作動する被作
動部である油圧ジャッキ、（８）は油圧ジャッキ（７）
と油圧バルブ（６）とを接続する配管、（９）は油圧ジ
ャッキ（７）により昇降するエレベータの乗りかご、（
１０）は一方の端を油圧バルブ（６）に接続し、他方の
端を油タンク（１）内の作動油（２）中に挿入した戻り
管である。This hydraulic valve (6) sends the hydraulic oil (2) discharged from the hydraulic pump (4) to the operated part, and conversely sends the hydraulic oil (2) returned from the operated part to the oil tank (1). At the same time, the flow rate of the hydraulic oil (2) is adjusted. (7) is a hydraulic jack which is an actuated part operated by hydraulic oil (2), (8) is a hydraulic jack (7)
and the hydraulic valve (6), (9) is the elevator car that is raised and lowered by the hydraulic jack (7), (
10) is a return pipe whose one end is connected to the hydraulic valve (6) and the other end is inserted into the hydraulic oil (2) in the oil tank (1).
従来の油圧エレベータの油圧パワーユニットは上記のよ
うに構成されており、次のように動作する。The hydraulic power unit of a conventional hydraulic elevator is constructed as described above and operates as follows.
油タンク（１）内の作動油（２）中に浸漬した電動機（
３）及び油圧ポンプ（４）によって、油圧バルブ（６）
を介して作動油（２）を被作動部に送出するとともに、
前記油圧バルブ（６）を介して作動油（２）を油タンク
（１）内に環流させ、油圧パワーユニット機構を構成し
ている。すなわち、油圧パワーユニット機構は、油圧ジ
ャッキ（７）へ作動油（２）を送出したり、または、油
圧ジャッキ（７）から作動油（２）を油タンク（１）に
環流することにより、乗りかご（９）の昇降動作を制御
している。The electric motor (
3) and hydraulic pump (4), hydraulic valve (6)
The hydraulic oil (2) is sent to the operated part via the
Hydraulic oil (2) is circulated into the oil tank (1) through the hydraulic valve (6) to constitute a hydraulic power unit mechanism. That is, the hydraulic power unit mechanism supplies the hydraulic oil (2) to the hydraulic jack (7) or circulates the hydraulic oil (2) from the hydraulic jack (7) to the oil tank (1), thereby controlling the passenger car. (9) The lifting and lowering operations are controlled.
この油圧パワーユニット機構の動作について以下に詳述
する。The operation of this hydraulic power unit mechanism will be described in detail below.
電動機（３）により油圧ポンプ（４）が回転すると、作
動油（２）は油圧ポンプ（４）一吐出管（５）一油圧バ
ルブ（６）一配管（８）を経て油圧ジャッキ（７）に送
出され、乗りかご（９）が上昇する。When the hydraulic pump (4) is rotated by the electric motor (3), the hydraulic oil (2) passes through the hydraulic pump (4), one discharge pipe (5), one hydraulic valve (6), and one pipe (8) to the hydraulic jack (7). The car is sent out and the car (9) rises.
一方、油圧バルブ（６）を切換えると、油圧ジャッキ（
７）内の作動油（２）は油圧ジャッキ（７）一配管（８
）一油圧バルブ（６）一戻り管（１０）を経て油タンク
（１）内に環流し、乗りかご（９）は下降する。On the other hand, when the hydraulic valve (6) is switched, the hydraulic jack (
Hydraulic oil (2) in 7) is connected to hydraulic jack (7) and piping (8).
) The oil flows back into the oil tank (1) through one hydraulic valve (6) and one return pipe (10), and the car (9) descends.
なお、この種の油圧エレベータの油圧パワーユニットで
は、電動機（３）及び油圧ポンプ（４）は油タンク（１
）内の作動油（２）中に浸漬されている。これは、電動
機（３）の運転による発熱で電動機（３）が加熱するの
を防止するために、作動油（２）で電動機（３）を冷却
している。In addition, in the hydraulic power unit of this type of hydraulic elevator, the electric motor (3) and the hydraulic pump (4) are connected to the oil tank (1).
) is immersed in hydraulic oil (2). This is because the electric motor (3) is cooled with hydraulic oil (2) in order to prevent the electric motor (3) from heating up due to heat generated by the operation of the electric motor (3).
［発明が解決しようとする課題］
上記のような従来の油圧エレベータの油圧パワーユニッ
トでは、通常、油タンク（１）の側面及び底面は共に平
面で構成されており、油タンク（１）の内側の形状は略
四方形の箱形形状を呈していた。そして、この油タンク
（１）内に貯溜されている作動油（２）は電動機（３）
及び油圧ポンプ（４）を浸漬でき、且つ、油圧ポンプ（
４）のフィルタからの吸込みによるキャビテーションが
発生しない程度の油面の高さとなっていた。[Problems to be Solved by the Invention] In the conventional hydraulic power unit of the hydraulic elevator as described above, the side and bottom surfaces of the oil tank (1) are usually both flat, and the inside of the oil tank (1) is flat. The shape was a substantially rectangular box shape. The hydraulic oil (2) stored in this oil tank (1) is used for the electric motor (3).
and the hydraulic pump (4) can be immersed, and the hydraulic pump (4) can be immersed.
4) The oil level was high enough to prevent cavitation from being sucked in from the filter.
したがって、この作動油（２）の総油量は実際の送油量
を考慮に入れると、極めて多量となり不経済であった。Therefore, the total amount of this hydraulic oil (2) was extremely large and uneconomical when the actual amount of oil fed was taken into consideration.
また、作動油（２）の使用量を６００ ［９］未満とし
ないと、消防法の適用（６００ ［Ｑ］から３０００
［Ｑ］の場合には微量危険物の扱い）を受けることにな
り、消防法の適用除外とするためにも、作動油（２）の
使用量を削減する必要があった。In addition, if the amount of hydraulic fluid (2) used is not less than 600 [9], the application of the Fire Service Act (600 [Q] to 3000 [Q]
In the case of [Q], the amount of hydraulic fluid (2) used had to be reduced in order to be exempted from the Fire Service Act.
なお、電動機（３）及び油圧ポンプ（４）を油タンク（
１）内の作動油（２）中に浸漬しないタイプの油圧パワ
ーユニット機構（特開昭５９−１５６５４号公報参考）
においては、かかる弊害は比較的少ない。Note that the electric motor (3) and hydraulic pump (4) are connected to the oil tank (
Hydraulic power unit mechanism of the type that is not immersed in the hydraulic oil (2) in (1)
In this case, such adverse effects are relatively small.
そこで、この発明は油タンク内の作動油の貯溜容量を削
減できる油圧エレベータの油圧パワーユニットの提供を
課題とするものである。Therefore, an object of the present invention is to provide a hydraulic power unit for a hydraulic elevator that can reduce the storage capacity of hydraulic oil in an oil tank.
［Ｒ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の油圧パワーユニット
は、作動油（２）を収容する油タンク（１）の内側に、
電動機（３）及び油圧ポンプ（４）の外形形状に略応じ
て突出部（Ａ）を形或したものである。[Means for Solving Problem R] A hydraulic power unit for a hydraulic elevator according to the present invention includes, inside an oil tank (1) containing hydraulic oil (2),
The protrusion (A) is shaped approximately according to the external shapes of the electric motor (3) and the hydraulic pump (4).
［作用］
この発明の油圧エレベータの油圧パワーユニットにおい
ては、油圧パワーユニット機構の油タンク（１）の内側
に電動機（３）及び油圧ポンプ（４）の外形形状に略応
じて突出部（Ａ）を形成したものであるから、この油タ
ンク（１）内の作動油（２）の貯溜容量は減少し、電動
機（３）及び油圧ポンプ（４）を作動油（２）で浸漬し
、且つ、油圧ボンブ（４）のフィルタからの吸込みによ
るキャビテーションが発生しない程度の油面高とした場
合にも、作動油（２）の総量は少なくてよい。[Function] In the hydraulic power unit of the hydraulic elevator of the present invention, the protrusion (A) is formed inside the oil tank (1) of the hydraulic power unit mechanism approximately according to the external shapes of the electric motor (3) and the hydraulic pump (4). Therefore, the storage capacity of the hydraulic oil (2) in the oil tank (1) is reduced, and the electric motor (3) and hydraulic pump (4) are immersed in the hydraulic oil (2), and the hydraulic bomb is Even when the oil level is set to a level high enough to prevent cavitation caused by suction from the filter (4), the total amount of hydraulic oil (2) may be small.
［実施例］
第１図はこの発明の一実施例である油圧エレベータの油
圧パワーユニットを示す側面から見た縦断面図、第２図
は第１図の油圧エレベータの油圧パワーユニットを示す
正面から見た縦断面図である。図中、（１）から（１０
）は上記従来例と同一または相当する構成部分である。[Example] Fig. 1 is a longitudinal sectional view of a hydraulic power unit of a hydraulic elevator according to an embodiment of the present invention, seen from the side, and Fig. 2 is a longitudinal sectional view of the hydraulic power unit of the hydraulic elevator of Fig. 1, seen from the front. FIG. In the figure, (1) to (10
) are constituent parts that are the same as or correspond to the above-mentioned conventional example.
そして、この実施例においても上記従来例と同様の、油
タンク（１）内の作動油（２）中に浸漬した電動機（３
）及び油圧ポンプ（４）によって、油圧バルブ（６）を
介して作動油（２）を被作動部に送出するとともに、前
記油圧バルブ（６）を介して作動油（２）を油タンク（
１）内に環流させる油圧パワーユニット機構を有してい
る。なお、この油圧パワーユニット機構の動作は従来例
と同様であるので、ここでは説明を省略する。In this embodiment as well, the electric motor (3) is immersed in the hydraulic oil (2) in the oil tank (1), similar to the conventional example.
) and hydraulic pump (4), the hydraulic oil (2) is sent to the operated part via the hydraulic valve (6), and the hydraulic oil (2) is transferred via the hydraulic valve (6) to the oil tank (
1) It has a hydraulic power unit mechanism that circulates the air within the tank. Note that since the operation of this hydraulic power unit mechanism is similar to that of the conventional example, the explanation will be omitted here.
図において、（Ａ）は油タンク（１）の側面及び底面を
油タンク（１）の内側に突出させて形成した突出部であ
り、この突出部（Ａ）の形状は電動機（３）及び油圧ポ
ンプ（４）の外形形状に略応じたものとなっている。（
１１）はこの油タンク（１）を支持するために延長した
支持脚である。In the figure, (A) is a protrusion formed by protruding the side and bottom surfaces of the oil tank (1) inside the oil tank (1), and the shape of this protrusion (A) is similar to that of the electric motor (3) and hydraulic pressure. The shape substantially corresponds to the external shape of the pump (4). (
11) is a support leg extended to support this oil tank (1).
この実施例の油圧エレベータの油圧パワーユニットは上
記のような構成となっており、油圧パワーユニット機構
の油タンク（１）の下部に突出部（Ａ）が形成されてい
る。The hydraulic power unit of the hydraulic elevator of this embodiment has the above-mentioned configuration, and a protrusion (A) is formed at the lower part of the oil tank (1) of the hydraulic power unit mechanism.
したがって、この実施例では、下部に形成した突出部（
Ａ）によって、油タンク（１）の全体を上部と均一の大
きさで形成したものに対して、油タンク（１）内の作動
油（２）の貯溜容量が減少する。譬え、電動機（３）及
び油圧ポンプ（４）を作動油（２）中に浸漬し、且つ、
油圧ポンプ（４）のフィルタからの吸込みによるキャビ
テーションが発生１−ない程度の油面の高さとした場合
にも、油タンク（１）内の作動油（２）は従来例に比べ
て少量で済む。このため、装置全体で使用する作動油（
２）の総油量は、実際の送油量を考慮に入れても、従来
例に比べて大幅に削減できるので、極めて経済的であり
、消防法の適用上からも都合がよい。Therefore, in this example, the protrusion (
Due to A), the storage capacity of the hydraulic oil (2) in the oil tank (1) is reduced compared to a case where the entire oil tank (1) is formed to have a uniform size with the upper part. For example, an electric motor (3) and a hydraulic pump (4) are immersed in hydraulic oil (2), and
Even when the oil level is set to a level that does not cause cavitation due to suction from the filter of the hydraulic pump (4), the amount of hydraulic oil (2) in the oil tank (1) can be reduced compared to the conventional example. . For this reason, the hydraulic oil (
The total amount of oil in 2) can be significantly reduced compared to the conventional example even when the actual amount of oil fed is taken into consideration, so it is extremely economical and convenient from the viewpoint of application of the Fire Service Act.
また、この実施例においては、油タンク（１）と一体で
突出部（Ａ）を形成しているので、部品点数が削減でき
る点においても経済的である。Further, in this embodiment, since the protrusion (A) is formed integrally with the oil tank (1), it is economical in that the number of parts can be reduced.
なお、この突出部（Ａ）の形状は、極力、電動機（３）
及び油圧ポンプ（４）の外形形状に近似した形状とする
のが望ましいが、実際には、プレス及び折曲等の加工の
容易性も考慮して決定すべきである。Note that the shape of this protrusion (A) should be as similar to the electric motor (3) as possible.
Although it is desirable to have a shape similar to the external shape of the hydraulic pump (4), in reality, the ease of processing such as pressing and bending should also be taken into consideration when determining the shape.
上記のように、この実施例の油圧エレベータの油圧パワ
ーユニットは、電動機（３）及び油圧ポンプ（４）を油
タンク（１）内の作動油（２）中に浸漬するタイプの油
圧パワーユニット機構ニおいて、油タンク（１）の側面
及び底面を内側に突出させて、電動機（３）及び油圧ポ
ンプ（４）の外形形状に略応じた突出部（Ａ）を形戊す
るという極めて簡易な構成により、油タンク（１）内の
作動油（２）の貯溜容量を低減し、装置全体で使用する
作動油（２）の総量が削減されるので、経済的であり、
消防法上からも都合がよい。As mentioned above, the hydraulic power unit of the hydraulic elevator of this embodiment has a hydraulic power unit mechanism of the type in which the electric motor (3) and the hydraulic pump (4) are immersed in the hydraulic oil (2) in the oil tank (1). The oil tank (1) has an extremely simple configuration in which the side and bottom surfaces of the oil tank (1) are made to protrude inward to form a protrusion (A) that roughly corresponds to the external shape of the electric motor (3) and the hydraulic pump (4). It is economical because the storage capacity of the hydraulic oil (2) in the oil tank (1) is reduced and the total amount of hydraulic oil (2) used in the entire device is reduced.
This is also convenient from the standpoint of the Fire Service Act.
また、油タンク（１）の形状を電動機（３）及び油圧ボ
ンブ（４）の外形形状に近似した低面積の形状を高さを
高くすることで対応したものでないから、油タンク（１
）の上部に、サービスマンが定期的なサーゼス毎に操作
を行なう可能性のある操作盤等を載置しても、その操作
が容易となり、エレベータの平面積を小さくすることが
できる。In addition, since the shape of the oil tank (1) is not adapted by increasing the height of the low-area shape that approximates the external shape of the electric motor (3) and the hydraulic bomb (4),
) Even if an operation panel or the like that may be operated by a service person at regular intervals is placed on top of the elevator, the operation becomes easy and the floor area of the elevator can be reduced.
ところで、上記の実施例では突出部（Ａ）を油タンク（
１）と一体で形成したものについて説明したが、この突
出部（Ａ）を油タンク（１）とは別の部材で形戊して、
油タンク（１）内に配設してもよい。なお、この場合に
は、油タンク（１）及び支持脚（１１）等は従来と同一
の部品を使用することができる。By the way, in the above embodiment, the protrusion (A) is connected to the oil tank (
1), but it is possible to form this protrusion (A) with a separate member from the oil tank (1),
It may be arranged within the oil tank (1). In this case, the oil tank (1), support legs (11), etc. can be the same parts as conventional ones.
［発明の効果］
以上説明したとおり、この発明の油圧エレベータの油圧
パワーユニットは、油タンクの内側に電動機及び油圧ポ
ンプの外形形状に略応じた突出部を配設するという簡易
な構戊により、油タンク内の作動油の貯溜容量を低減で
き、譬え、電動機及び油圧ポンプを作動油で浸漬し、且
つ、油圧ポンプのフィルタからの吸込みによるキャビテ
ーションが発生しない程度の油面の高さとした場合でも
、装置全体で使用する作動油の総量を削減できるので、
経済的であり、消防法の適用除外となる。[Effects of the Invention] As explained above, the hydraulic power unit of the hydraulic elevator of the present invention has a simple structure in which a protruding portion approximately corresponding to the external shape of the electric motor and the hydraulic pump is disposed inside the oil tank. The storage capacity of hydraulic oil in the tank can be reduced, and even if the electric motor and hydraulic pump are immersed in hydraulic oil and the oil level is set to a level that does not cause cavitation due to suction from the hydraulic pump's filter, The total amount of hydraulic oil used in the entire device can be reduced.
It is economical and exempt from the Fire Service Act.
３図は従来の油圧エレベータの油圧パワーユニットを示
す正面から見た縦断面図である。FIG. 3 is a longitudinal cross-sectional view of a conventional hydraulic power unit of a hydraulic elevator, seen from the front.
図において、
１：油タンク ２：作動油
３：電動機 ４：油圧ポンプ６：油圧バルブ
Ａ：突出部
である。In the figure, 1: oil tank 2: hydraulic oil 3: electric motor 4: hydraulic pump 6: hydraulic valve A: protrusion.
なお、図中、同一符号及び同一記号は同一または相当部
分を示すものである。Note that in the drawings, the same reference numerals and symbols indicate the same or equivalent parts.
Claims (1)
によって、油圧バルブを介して作動油を被作動部に送出
するとともに、前記油圧バルブを介して作動油を油タン
ク内に環流させる油圧エレベータの油圧パワーユニット
において、 上記油タンクの内側に上記電動機及び油圧ポンプの外形
形状に略応じて形成した突出部を具備することを特徴と
する油圧エレベータの油圧パワーユニット。[Claims] An electric motor and a hydraulic pump immersed in hydraulic oil in an oil tank send hydraulic oil to an actuated part through a hydraulic valve, and also transport hydraulic oil into the oil tank through the hydraulic valve. What is claimed is: 1. A hydraulic power unit for a hydraulic elevator, wherein the hydraulic power unit for a hydraulic elevator is characterized in that the oil tank is provided with a protruding portion formed on the inside of the oil tank in substantially accordance with the external shape of the electric motor and the hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1150237A JPH0318582A (en) | 1989-06-13 | 1989-06-13 | Hydraulic power unit for hydraulic elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1150237A JPH0318582A (en) | 1989-06-13 | 1989-06-13 | Hydraulic power unit for hydraulic elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318582A true JPH0318582A (en) | 1991-01-28 |
Family
ID=15492557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1150237A Pending JPH0318582A (en) | 1989-06-13 | 1989-06-13 | Hydraulic power unit for hydraulic elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124301U (en) * | 1991-04-30 | 1992-11-12 | 豊興工業株式会社 | Liquid pressure source device |
| JPH051001U (en) * | 1991-06-27 | 1993-01-08 | 豊興工業株式会社 | Hydraulic pressure source device |
-
1989
- 1989-06-13 JP JP1150237A patent/JPH0318582A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124301U (en) * | 1991-04-30 | 1992-11-12 | 豊興工業株式会社 | Liquid pressure source device |
| JPH051001U (en) * | 1991-06-27 | 1993-01-08 | 豊興工業株式会社 | Hydraulic pressure source device |
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