JPH04165101A - Hydraulic pressure source device - Google Patents
Hydraulic pressure source deviceInfo
- Publication number
- JPH04165101A JPH04165101A JP29142490A JP29142490A JPH04165101A JP H04165101 A JPH04165101 A JP H04165101A JP 29142490 A JP29142490 A JP 29142490A JP 29142490 A JP29142490 A JP 29142490A JP H04165101 A JPH04165101 A JP H04165101A
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- hydraulic pump
- hydraulic fluid
- tank
- flow
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 51
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電動機と電動機により駆動される液圧ポンプと
をタンク内部の作動液中に浸漬して収容の液圧源装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hydraulic pressure source device in which an electric motor and a hydraulic pump driven by the electric motor are immersed and housed in a hydraulic fluid inside a tank.
従来、この種の液圧源装置は、特開平1−188701
号公報の第5図に示される如き構成から成り、電動機と
液圧ポンプとを一体に結合してタンクの上板に吊持され
て作動液中に浸漬し、電動機の通電で液圧ポンプがタン
クに貯蔵の作動液を液圧アクチュエータへ吐出作用する
と共に吐出した作動液をタンクへ還流するよう設け、電
動機および液圧ポンプの作動音を作動液で減衰して低騒
音とし、かつ電動機の冷却を作動液により得ている。Conventionally, this type of hydraulic source device is disclosed in Japanese Patent Application Laid-open No. 1-188701.
The structure is as shown in Figure 5 of the publication, and the electric motor and hydraulic pump are integrally connected and suspended from the upper plate of the tank and immersed in the working fluid. The hydraulic fluid stored in the tank is discharged to the hydraulic actuator, and the discharged hydraulic fluid is also returned to the tank, so that the operating noise of the electric motor and hydraulic pump is attenuated by the hydraulic fluid, reducing noise and cooling the electric motor. is obtained by the hydraulic fluid.
ところが、かかる構成では、電動機に対する作動液の流
れが積極的に作られるわけではないので、電動機の周囲
に作動液か停滞しがちで、電動機の冷却が良好に行なわ
れず、電動機が許容値以上に温度上昇するのを防止する
ために、電動機の出力を制限して使用しなければならず
、装置の作動効率を低くしてしまう問題点があった。However, with this configuration, the flow of hydraulic fluid to the motor is not actively created, so the hydraulic fluid tends to stagnate around the motor, and the motor is not cooled properly, causing the motor to exceed the allowable value. In order to prevent the temperature from rising, the output of the electric motor must be limited during use, which poses a problem of lowering the operating efficiency of the device.
本発明は、かかる問題点を解決するもので、タンク内部
に作動液の流れを積極的に作り出し、この流れ作動液に
よる冷却作用で電動機の温度」二昇を防止するようにし
だ液圧源装置を提供するものである。The present invention solves this problem by actively creating a flow of hydraulic fluid inside the tank, and using the cooling effect of this flowing hydraulic fluid to prevent the temperature of the motor from rising. It provides:
このため本発明は、作動液を貯蔵するタンク内部の底板
上に単一の仕切板を垂直状に配置して作動液の流れ路を
形成し、この流れ路に作動液の流れ方向に沿って電動機
と電動機により駆動される液圧ポンプとを作動液中へ浸
漬して配置すると共に、液圧ポンプにより吐出されてタ
ンクへ還流する作動液を流す戻り路部材と液圧ポンプの
吸入部とを電動機両端の流れ路の作動液中にそれぞれ開
口して設け、電動機はケーシング内部の固定子と回転子
とか作動液に浸漬されるようケーシングの両端部に流れ
路を流れる作動液を導く流通孔を設けている。Therefore, in the present invention, a single partition plate is arranged vertically on the bottom plate inside the tank storing the hydraulic fluid to form a flow path for the hydraulic fluid. An electric motor and a hydraulic pump driven by the electric motor are disposed immersed in the hydraulic fluid, and a return path member through which the hydraulic fluid discharged by the hydraulic pump and returned to the tank flows and a suction part of the hydraulic pump are arranged. The flow passages at both ends of the electric motor are provided with openings into the working fluid, and the motor has circulation holes at both ends of the casing that guide the working fluid flowing through the flow passages so that the stator and rotor inside the casing are immersed in the working fluid. It is set up.
このように本発明は、かかる構成において、電動機の通
電による液圧ポンプの作動で、戻り路部材からタンク内
部へ還流される作動液か流れ路を流れて液圧ポンプの吸
入部より再び吸入される。このため、流れ路に作動液の
流れか積極的に作り出され、電動機はその内部と外部と
を流れる作動液により良好に冷却されて温度上昇か防止
され、電動機の出力を許容値まで有効的に使用できて、
装置の作動効率を向上することかできる。As described above, in the present invention, when the hydraulic pump is operated by energizing the electric motor, the hydraulic fluid that is returned from the return path member to the inside of the tank flows through the flow path and is sucked in again from the suction portion of the hydraulic pump. Ru. For this reason, a flow of working fluid is actively created in the flow path, and the motor is well cooled by the working fluid flowing inside and outside, preventing temperature rise, and effectively increasing the output of the motor to the allowable value. Can be used,
The operating efficiency of the device can be improved.
〔実施例] 以下、本発明の実施例を図面に基ついて説明する。〔Example] Embodiments of the present invention will be described below with reference to the drawings.
第1図および第2図において、■はタンクを示し、底板
IAと、底板IAの四周の側板IB、Ic、ID、IE
と、4つの側板IB・川Eの上端に取付は取外し自在に
載置する上板IFとから成り、底板IAを中央に向けて
下方へ傾斜し、全体的に直方体状として内部に作動液を
貯蔵自在(液面をして示す)でおり、この仕切板2は下
端を底板IAに当接し、かつ上端部を液面り上に延在す
ると共に一側端を側板ICに当接してタンクl内部に作
動液の流れを得る連通した流れ路3A、3Bを形成して
いる。4は電動機、5は電動機4により駆動され作動液
を吸入吐出する液圧ポンプで、両者は一体に結合されて
架台6に取り付は流れ路3Bに作動液の流れ方向へ沿っ
て作動液中に浸漬するよう配置している。そして、電動
機4は第3図に詳記する如く、そのケーシング4A内部
に固定子4Bと回転子4Cとを収容した空間部か形成さ
れ、ケーシング4Aの両端部には内部の固定子4B、回
転子4Cか作動液に浸漬されるよう流れ路3Bを流れる
作動液をケーシング4A内部に導(流通孔4D、4Eを
設けている。4Fは固定子4Bに有する励磁コイル、4
Gは固定子4Bに貫設した流通路で、一方の流通孔4D
からケーシング4A内部に導ひかれた作動液は、固定子
4Bと回転子40間の隙間や流通路4Gを流れて他方の
流通孔4Eよりケーシング4A外へ流出可能にしている
。In FIGS. 1 and 2, ■ indicates a tank, and includes the bottom plate IA and the four side plates IB, Ic, ID, and IE around the bottom plate IA.
The upper plate IF is removably mounted on the upper ends of the four side plates IB and E, and the bottom plate IA is inclined downward with the bottom plate IA toward the center. The partition plate 2 has a lower end in contact with the bottom plate IA, an upper end extending above the liquid level, and one end in contact with the side plate IC to open the tank. Internally, communicating flow paths 3A and 3B are formed through which the working fluid flows. 4 is an electric motor, and 5 is a hydraulic pump that is driven by the electric motor 4 and sucks and discharges hydraulic fluid. Both are integrally connected and are attached to a pedestal 6, which is connected to a flow path 3B along the flow direction of the hydraulic fluid. It is placed so that it can be immersed in the water. As detailed in FIG. 3, the electric motor 4 has a space inside its casing 4A that accommodates a stator 4B and a rotor 4C. The hydraulic fluid flowing through the flow path 3B is introduced into the casing 4A so that the child 4C is immersed in the hydraulic fluid (flow holes 4D and 4E are provided. 4F is an excitation coil provided in the stator 4B,
G is a flow passage provided through the stator 4B, one of the flow holes 4D
The hydraulic fluid guided into the casing 4A from the stator 4B and the rotor 40 flows through the gap between the stator 4B and the rotor 40 and the flow path 4G, and is allowed to flow out of the casing 4A through the other flow hole 4E.
また架台6は上方に取付枠部6Aを有し、側板IB、I
Cの上部内壁に固定の受は金具7に支持した防振ゴム8
上に取付枠部6Aを載置しす・ント9により固定してい
る。l0111はタンクlの上板IFに設けた継手ブロ
ック部材を示し、継手ブロック部材IOは液圧ポンプ5
の吐出部から延びる可撓管12をタンク1内部て接続し
、吐出する作動液を液圧アクチュエータへ導くよう図示
しない供給配管をタンクl外で接続自在に設けている。Further, the pedestal 6 has a mounting frame portion 6A on the upper side, and side plates IB and IB.
The receiver fixed to the upper inner wall of C is a vibration-proof rubber 8 supported by a metal fitting 7.
A mounting frame portion 6A is placed on top and fixed by a mounting bracket 9. 10111 indicates a joint block member provided on the upper plate IF of tank l, and joint block member IO is hydraulic pump 5.
A flexible pipe 12 extending from a discharge portion of the tank 1 is connected inside the tank 1, and a supply pipe (not shown) is connectably provided outside the tank 1 to guide the discharged hydraulic fluid to a hydraulic actuator.
継手ブロック部材11はタンクl内部て接続して流れ路
3Aの作動液中に開口した戻り路部材13を有し、液圧
アクチュエータから排出される作動液をタンクl内部に
還流するよう図示しない戻り配管をタンクl外で接続自
在に設けている。The joint block member 11 has a return passage member 13 connected to the inside of the tank l and opened into the hydraulic fluid in the flow path 3A, and has a return passage member 13 (not shown) so as to return the hydraulic fluid discharged from the hydraulic actuator to the inside of the tank l. Piping is provided so that it can be freely connected outside the tank.
14は液圧ポンプ5の吸入部15に接続の吸入管で、先
端を流れ路3Bの電動機5より下流側に開口して設けて
いる。16は作動液を濾過するためのストレーナで、吸
入管14の先端に設けている。Reference numeral 14 denotes a suction pipe connected to the suction portion 15 of the hydraulic pump 5, and the tip thereof is opened on the downstream side of the electric motor 5 in the flow path 3B. 16 is a strainer for filtering the working fluid, and is provided at the tip of the suction pipe 14.
次に、この構成の作動を説明する。Next, the operation of this configuration will be explained.
継手ブロック部材l0111を図示しない供給配管・戻
り配管を介して液圧アクチュエータに接続する。The joint block member l0111 is connected to the hydraulic actuator via supply piping and return piping (not shown).
この状態から電動機4の通電により液圧ポンプ5を駆動
すると、タンク1に貯蔵の作動液はストレーナ16より
吸入管14を介して吸入され液圧ポンプ5より可撓管1
2を介して継手ブロック部材10へ吐出される。When the hydraulic pump 5 is driven by energizing the electric motor 4 from this state, the working fluid stored in the tank 1 is sucked in from the strainer 16 through the suction pipe 14 and transferred from the hydraulic pump 5 to the flexible pipe 1.
2 to the joint block member 10.
この吐出する作動液を受けて液圧アクチュエータは作動
し、液圧アクチュエータから排出される作動液は継手ブ
ロック部材11より戻り路部材13を流れて夕ンク1内
部へ還流する。このとき、電動機4と液圧ポンプ5が作
動液中に浸漬されているため、これらの作動音は作動液
で減衰されると共に、仕切板2および可撓管12により
作動音のタンクl側板への伝播が減衰されることと相ま
って、非常に静かな状態で装置の作動が行なわれる。The hydraulic actuator operates in response to this discharged hydraulic fluid, and the hydraulic fluid discharged from the hydraulic actuator flows from the joint block member 11 through the return path member 13 and returns to the inside of the tank 1. At this time, since the electric motor 4 and hydraulic pump 5 are immersed in the hydraulic fluid, their operating noise is attenuated by the hydraulic fluid, and the partition plate 2 and flexible tube 12 direct the operating noise to the side plate of the tank l. Coupled with the attenuation of the propagation, the device operates in very quiet conditions.
この作動で、戻り路部材13よりタンクl内部に還流す
る作動液は、流れ路を3Aより3Bへ流れてストレーナ
I6から再び液圧ポンプ5によって吸入吐出される。こ
のため、流れ路3A・3Bには作動液の流れが積極的に
作り出され、流れ路3Bに配置の電動機4にはケーシン
グ4Aの外周を作動液か流れると共に、その作動液の一
部か流通孔4Eよりケーシング4A内部に流入して固定
子4Bと回転子40間や流通路4Gを流れて流通孔4D
より流出する。そして電動機4は、ケーシング4Aの内
部と外部を流れる作動液により熱がうばわれて冷却が効
率的に行なわれるから、その出力を許容値まで有効的に
使用することができる。よって、装置全体の作動効率を
向上することができる。Due to this operation, the working fluid flowing back into the tank l from the return path member 13 flows through the flow path from 3A to 3B, and is sucked and discharged by the hydraulic pump 5 from the strainer I6 again. Therefore, a flow of hydraulic fluid is actively created in the flow paths 3A and 3B, and the hydraulic fluid flows around the outer periphery of the casing 4A to the electric motor 4 disposed in the flow path 3B, and a portion of the hydraulic fluid also flows. It flows into the casing 4A through the hole 4E, flows between the stator 4B and the rotor 40 and through the flow path 4G, and flows into the flow hole 4D.
More leakage. Since the heat of the electric motor 4 is dissipated by the working fluid flowing inside and outside the casing 4A, and the electric motor 4 is efficiently cooled, its output can be effectively used up to a permissible value. Therefore, the operating efficiency of the entire device can be improved.
また、電動機4の冷却作用の向上によって、電動機4の
小型化およびタンクl容量の減少を図れると共に、その
構成も従来と比較してタンク1内部に作動液の流れを得
る流れ路3A・3Bを形成するよう単一の仕切板2を設
ける程度と成り、小形状で取り扱いの優れた装置を得る
ことかできる。Furthermore, by improving the cooling effect of the electric motor 4, it is possible to downsize the electric motor 4 and reduce the capacity of the tank 1, and the structure is also different from the conventional one, with flow passages 3A and 3B for allowing the flow of working fluid inside the tank 1. Since only a single partition plate 2 is required to form the structure, it is possible to obtain a device that is small in size and easy to handle.
このように本発明の構成によれば、電動機の通電による
液圧ポンプの駆動でタンク内部に形成する流れ路に作動
液の流れか積極的に作り出され、この流れ路を流れる作
動液により電動機はケーシングの内 −部・外部
で冷却されて温度上昇か防止されるため、電動機の出力
を有効的に使用できて、装置全体の作動効率を良好に向
上することかできる。また、かかる電動機の冷却作用の
向上によって、電動機の小型化およびタンク容量の減少
を図れると共に、その構成も従来と比較してタンク内部
に作動液の流れを得る流れ路を形成するよう単一の仕切
板を設ける程度で、小形状かつ軽量にして取り扱いの優
れた装置を得ることができる。As described above, according to the configuration of the present invention, a flow of hydraulic fluid is actively created in the flow path formed inside the tank by driving the hydraulic pump by energizing the electric motor, and the hydraulic fluid flowing through this flow path drives the electric motor. Since it is cooled inside and outside the casing and temperature rise is prevented, the output of the electric motor can be used effectively and the operating efficiency of the entire device can be improved. In addition, by improving the cooling effect of the motor, it is possible to downsize the motor and reduce the tank capacity, and compared to the conventional structure, the motor has a single flow path that allows the working fluid to flow inside the tank. By just providing a partition plate, it is possible to obtain a device that is small in size, lightweight, and easy to handle.
第1図な(1し第3図は本発明にかがる液圧源装置の一
実施例を示し、第1図は第2図の線I−Iに沿った縦断
面図、第2図は第1図の線IF−I[に沿った断面図、
第3図は電動機の要部を破断して示した拡大図である。
1・・・タンク 2・・・仕切板 3A・3B・・・流
れ路4・・・電動機、4D、4E・・・流通孔5・・液
圧ポンプ 13・・・戻り路部材15・・吸入部FIGS. 1 and 3 show an embodiment of the hydraulic pressure source device according to the present invention, and FIG. is a cross-sectional view along line IF-I in FIG. 1,
FIG. 3 is an enlarged view showing the main parts of the electric motor cut away. 1... Tank 2... Partition plate 3A, 3B... Flow path 4... Electric motor, 4D, 4E... Distribution hole 5... Hydraulic pump 13... Return path member 15... Suction Department
Claims (1)
を垂直状に配置して作動液の流れ路を形成し、この流れ
路に作動液の流れ方向に沿って電動機と電動機により駆
動される液圧ポンプとを作動液中へ浸漬して配置すると
共に、液圧ポンプにより吐出されてタンクへ還流する作
動液を流す戻り路部材と液圧ポンプの吸入部とを電動機
両端の流れ路の作動液中にそれぞれ開口して設け、電動
機はケーシング内部の固定子と回転子とが作動液に浸漬
されるようケーシングの両端部に流れ路を流れる作動液
を導く流通孔を設けたことを特徴とする液圧源装置。A single partition plate is arranged vertically on the bottom plate inside the tank that stores the hydraulic fluid to form a flow path for the hydraulic fluid, and an electric motor and an electric motor drive are installed in this flow path along the flow direction of the hydraulic fluid. A hydraulic pump is immersed in the hydraulic fluid, and a return path member through which the hydraulic fluid discharged by the hydraulic pump and returned to the tank is connected to the suction section of the hydraulic pump in the flow path at both ends of the motor. The electric motor is characterized by having communication holes at both ends of the casing that guide the hydraulic fluid flowing through the flow path so that the stator and rotor inside the casing are immersed in the hydraulic fluid. Hydraulic pressure source device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2291424A JP3038237B2 (en) | 1990-10-29 | 1990-10-29 | Hydraulic pressure source device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2291424A JP3038237B2 (en) | 1990-10-29 | 1990-10-29 | Hydraulic pressure source device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04165101A true JPH04165101A (en) | 1992-06-10 |
JP3038237B2 JP3038237B2 (en) | 2000-05-08 |
Family
ID=17768703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2291424A Expired - Fee Related JP3038237B2 (en) | 1990-10-29 | 1990-10-29 | Hydraulic pressure source device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3038237B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101646080B1 (en) * | 2014-08-19 | 2016-08-08 | 주식회사 텍코드 | Ureteroscope |
-
1990
- 1990-10-29 JP JP2291424A patent/JP3038237B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3038237B2 (en) | 2000-05-08 |
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