JPH01187185A - Hydraulic power unit for hydraulic elevator - Google Patents

Hydraulic power unit for hydraulic elevator

Info

Publication number
JPH01187185A
JPH01187185A JP864188A JP864188A JPH01187185A JP H01187185 A JPH01187185 A JP H01187185A JP 864188 A JP864188 A JP 864188A JP 864188 A JP864188 A JP 864188A JP H01187185 A JPH01187185 A JP H01187185A
Authority
JP
Japan
Prior art keywords
hydraulic
oil tank
control valve
power unit
oil
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
Application number
JP864188A
Other languages
Japanese (ja)
Inventor
Motoo Shimoaki
下秋 元雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP864188A priority Critical patent/JPH01187185A/en
Publication of JPH01187185A publication Critical patent/JPH01187185A/en
Pending legal-status Critical Current

Links

Landscapes

  • Types And Forms Of Lifts (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

PURPOSE:To suppress the noise generated from the device and reduce the space of a machine chamber by accommodating a flow rate control valve and a hydraulic muffler which form the noise generating sources, together with an electric motor, oil pump, etc., into the oil tank in the hydraulic power unit. CONSTITUTION:In the titled hydraulic power unit, the upper gap part 13 in an oil tank 1 is extended a little upwardly, and a flow rate control valve 8 and an expansion type hydraulic muffler 8 are accommodated in the horizontally placed state into said upper gap part 13. Therefore, an electric motor 13 and all the noise generating sources are shielded by the iron plate wall of the oil tank 1, and the noise can be reduced by the noise shielding effect. Further, the lateral width of a machine chamber can be reduced by effectively utilizing the space in the oil tank 1.

Description

【発明の詳細な説明】 (産業上の利用分野] この発明は油タンク中に流量制御弁や油圧マフラ等の騒
音発生源を収容した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る。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a hydraulic power unit for a hydraulic elevator in which noise sources such as a flow control valve and a hydraulic muffler are housed in an oil tank.

(従来の技術) 第2図は従来の油圧エレベータの油圧パワーユニットを
示す縦断面図である。図中、(1)は作動油(2)が充
たされた油タンク、(3) はこの油タンク(1)内の
作動油(2)・に浸漬されフレームに開口部(3a)を
持つ電動機、(4) は同じく作動油(2)に浸漬され
電動機(3) により駆動される油圧ポンプ、(5) 
はこの油圧ポンプ(4)に一端が接続された吐出管、(
6) は油タンク(1)の外部に配置され吐出管(5)
の他端に接続された流量制御弁、(7)はこの流量制御
弁(6)に一端が接続された配管、(8)は機械室の床
に縦置状態で設置され上記配管(7)の他端に接続され
た膨張杉油圧マフラ、(9)はこの油圧マフラ(8)に
一端が接続された配管、(10)はこの配管(9)の他
端に接続されてかと(11)を昇降させる油圧ジヤツキ
、(12)は上記流量制御弁(6)に一端が接続される
とともに、先端が上記油圧タンク(1)内の作動油(2
)中に挿入された戻り管である。
(Prior Art) FIG. 2 is a longitudinal sectional view showing a hydraulic power unit of a conventional hydraulic elevator. In the figure, (1) is an oil tank filled with hydraulic oil (2), and (3) is immersed in hydraulic oil (2) in this oil tank (1) and has an opening (3a) in the frame. The electric motor (4) is a hydraulic pump (5) which is also immersed in hydraulic oil (2) and driven by the electric motor (3).
is a discharge pipe whose one end is connected to this hydraulic pump (4), (
6) The discharge pipe (5) is located outside the oil tank (1).
A flow control valve (7) is connected to the other end of the pipe, (7) is a pipe whose one end is connected to the flow control valve (6), and (8) is the pipe (7) installed vertically on the floor of the machine room. An expanded cedar hydraulic muffler is connected to the other end, (9) is a pipe whose one end is connected to this hydraulic muffler (8), and (10) is a pipe (11) connected to the other end of this pipe (9). A hydraulic jack (12) is connected at one end to the flow control valve (6) and has a tip connected to the hydraulic oil (2) in the hydraulic tank (1).
) is the return tube inserted into the

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、電動機(3) により油圧ボンブ(4)
が回転すると、作動油(2) は油圧ポンプ(4)→吐
出管(5)−流量制御弁(6)→配管(7)−油圧マフ
ラ(8)=配管(9) を通って油圧ジヤツキ(10)
に送出され、かご(11)は上昇する。また、流量制御
弁(6)を切り換えると、油圧ジヤツキ(lO)内の作
動油(2) は配管(9)−油圧マフラ(8)→配管(
7)−流量制御弁(6)−戻り管(12)を通って油タ
ンク(1)に還流し、かご(11)は下降する。
The hydraulic power unit of a conventional hydraulic elevator is configured as described above, and the electric motor (3) drives the hydraulic bomb (4).
When the hydraulic oil (2) rotates, the hydraulic oil (2) passes through the hydraulic pump (4) -> the discharge pipe (5) - the flow control valve (6) -> the pipe (7) - the hydraulic muffler (8) = the pipe (9) - and the hydraulic jack ( 10)
The car (11) rises. Also, when the flow control valve (6) is switched, the hydraulic oil (2) in the hydraulic jack (lO) flows from piping (9) to hydraulic muffler (8) to piping (
7) - Flow control valve (6) - Returns to the oil tank (1) through the return pipe (12) and the cage (11) is lowered.

なお、作動油(2)に浸漬された電動機(3)は、その
発熱を作動油(2)で冷却するようにしている。開口部
(3a)はそのために設けられたもので、ここから侵入
した作動油(2)によって電動機(3)の内部も冷却さ
れるようになっている。
Note that the electric motor (3) immersed in the hydraulic oil (2) is designed to cool its heat generation with the hydraulic oil (2). The opening (3a) is provided for this purpose, and the inside of the electric motor (3) is also cooled by the hydraulic oil (2) that enters through the opening (3a).

(発明が解決しようとする課題) 上記構成を有する従来の油圧エレベータのパワーユニッ
トでは、騒音源となる電動機(3)および油圧ポンプ(
4)は油タンク(1)内にあるので、これらから発生す
る騒音は低減されるが、油タンク(1)外に設置されて
いる流量制御弁(6)から生ずる音は下げることができ
なかった。
(Problems to be Solved by the Invention) In the conventional hydraulic elevator power unit having the above configuration, the electric motor (3) and the hydraulic pump (
4) is located inside the oil tank (1), so the noise generated from these can be reduced, but the noise generated from the flow control valve (6) installed outside the oil tank (1) cannot be reduced. Ta.

また、油圧エレベータに通常使用されている膨張形油圧
マフラはその大きさが比較的大きいため、これを油タン
ク(1)外に設置することは機械室のスペースを大きく
する結果を招いていた。
Furthermore, since the expansion type hydraulic muffler normally used in hydraulic elevators is relatively large, installing it outside the oil tank (1) results in an increase in the space of the machine room.

本発明は叙上の点に鑑み、装置の騒音レベルの低減およ
び機械室のスペースの縮小化を図ることのできる油圧エ
レベータの油圧パワーユニットを得ることを目的とする
In view of the above points, it is an object of the present invention to obtain a hydraulic power unit for a hydraulic elevator that can reduce the noise level of the device and reduce the space of the machine room.

(課題を解決するための手段〕 本発明に係る油圧エレベータの油圧パワーユニットは、
油タンク内に流量制御弁および油圧マフラを収容したも
のである。
(Means for Solving the Problems) A hydraulic power unit for a hydraulic elevator according to the present invention includes:
A flow control valve and hydraulic muffler are housed in the oil tank.

(作用) 本発耐においては、従来油タンク外に設置されていた流
量制御弁および油圧マフラを油タンク内に収容したので
、これらから生ずる騒音は油タンクの鉄板壁による遮音
効果で低減させることが可能になるとともに、油タンク
内空間を有効に利用でき、機械室のスペースの縮小化を
図ることができる。
(Function) In this case, the flow control valve and hydraulic muffler, which were conventionally installed outside the oil tank, are housed inside the oil tank, so the noise generated from these can be reduced by the sound insulation effect of the iron plate wall of the oil tank. At the same time, the space inside the oil tank can be used effectively, and the space in the machine room can be reduced.

〔実施例〕〔Example〕

以下、第1図の実施例に基づいて本発明を説明すると、
本実施例の油圧エレベータの油圧パワーユニットは、油
タンク(1)内の上部空隙部(13)を若干上方へ延長
し、その中に流量制御弁(6)、および膨張形油圧マフ
ラ(8)を横置状態にして収容したところに特徴を有し
、これにより電動機(3)等と共に騒音発生源となって
いたものを全て油タンク(1)の鉄板壁により遮蔽し、
その遮音効果によってこれら騒音発生源から生ずる騒音
を低減させることがで討る。また、上記のように油タン
ク内空間を有効に利用したことにより、機械室の横巾寸
法の縮小化が図れる。
Hereinafter, the present invention will be explained based on the embodiment shown in FIG.
The hydraulic power unit of the hydraulic elevator of this embodiment has an upper cavity (13) in an oil tank (1) slightly extended upward, and a flow control valve (6) and an expansion type hydraulic muffler (8) installed therein. It is unique in that it is housed horizontally, and as a result, all sources of noise, such as the electric motor (3), are shielded by the iron plate wall of the oil tank (1).
The aim is to reduce the noise generated from these noise sources through its sound insulation effect. Further, by effectively utilizing the space inside the oil tank as described above, the width dimension of the machine room can be reduced.

(発明の効果〕 以上述べたように、本発明によれば、装置から生ずる騒
音の低減、および機械室のスペースの縮小化が図れると
いう効果がある。
(Effects of the Invention) As described above, according to the present invention, there is an effect that noise generated from the device can be reduced and the space of the machine room can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による油圧エレベータの油圧パワーユニ
ットの実施例を示す縦断面図、第2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第1図相当図である
。 (1)は油タンク、(2)は作動油、(3)は電動機、
(4) は油圧ポンプ、(6)は流量制御弁、(8)は
油圧マフラである。 なお、各図中、同一符号は同−又は相当部分を示す。
FIG. 1 is a longitudinal sectional view showing an embodiment of a hydraulic power unit for a hydraulic elevator according to the present invention, and FIG. 2 is a view corresponding to FIG. 1 showing a conventional hydraulic power unit for a hydraulic elevator. (1) is oil tank, (2) is hydraulic oil, (3) is electric motor,
(4) is a hydraulic pump, (6) is a flow control valve, and (8) is a hydraulic muffler. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 油タンクの作動油に浸漬された電動機とこの電動機によ
り駆動される油圧ポンプを配置し、かご上昇時は流量制
御弁により上記油圧ポンプからの上記作動油を油圧マフ
ラを通して送出し、かご下降時は該油圧マフラを通過し
て上記流量制御弁に戻った上記作動油を戻り管を通して
上記油タンク内に還流させるものにおいて、上記油タン
ク内に上記流量制御弁および油圧マフラを収容したこと
を特徴とする油圧エレベータの油圧パワーユニット。
An electric motor immersed in hydraulic oil in an oil tank and a hydraulic pump driven by this electric motor are arranged, and when the car is raised, the hydraulic oil from the hydraulic pump is sent through the hydraulic muffler by a flow control valve, and when the car is lowered, the hydraulic oil is sent through the hydraulic muffler. The hydraulic oil that has passed through the hydraulic muffler and returned to the flow rate control valve is returned to the oil tank through a return pipe, characterized in that the flow rate control valve and the hydraulic muffler are housed in the oil tank. Hydraulic power unit for hydraulic elevators.
JP864188A 1988-01-19 1988-01-19 Hydraulic power unit for hydraulic elevator Pending JPH01187185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP864188A JPH01187185A (en) 1988-01-19 1988-01-19 Hydraulic power unit for hydraulic elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP864188A JPH01187185A (en) 1988-01-19 1988-01-19 Hydraulic power unit for hydraulic elevator

Publications (1)

Publication Number Publication Date
JPH01187185A true JPH01187185A (en) 1989-07-26

Family

ID=11698579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP864188A Pending JPH01187185A (en) 1988-01-19 1988-01-19 Hydraulic power unit for hydraulic elevator

Country Status (1)

Country Link
JP (1) JPH01187185A (en)

Similar Documents

Publication Publication Date Title
JPH01187185A (en) Hydraulic power unit for hydraulic elevator
JP2013092085A (en) Engine working machine
JP7064998B2 (en) Stationary power converter
JP2739184B2 (en) Cooling system for soundproof engine
US4154265A (en) Fluid system noise suppressor
JPH10205499A (en) Motor cooling device for vertical type motor-driven pump
GB1229279A (en)
CN217884338U (en) Motor controller heat radiation structure
US2233672A (en) Submersible electrical motor
JP2006170254A (en) Roll bearing structure of annealing furnace
JPH02305787A (en) Power unit for hydraulic elevator
US1914714A (en) Electromotor
CN209730956U (en) A kind of direct current permanent magnet motor that noise is small
JPH03128882A (en) Power unit for hydraulic elevator
JP3425451B2 (en) Water supply unit storage box
JPH04351404A (en) Pendant type operating box
JPH03147693A (en) Power unit of hydraulic elevator
JP2017160748A (en) Construction machine
JPH0318582A (en) Hydraulic power unit for hydraulic elevator
JPS59182186A (en) Power unit for hydraulic elevator
JPS59138583A (en) Power unit of hydraulic device
JP2019163729A (en) Engine work machine
JPH01188701A (en) Hydraulic unit
JP2002179362A (en) Power unit of hydraulic elevator
JPH05147863A (en) Power unit of hydraulic elevator