JPH10274201A - Hydraulic unit - Google Patents
Hydraulic unitInfo
- Publication number
- JPH10274201A JPH10274201A JP9464997A JP9464997A JPH10274201A JP H10274201 A JPH10274201 A JP H10274201A JP 9464997 A JP9464997 A JP 9464997A JP 9464997 A JP9464997 A JP 9464997A JP H10274201 A JPH10274201 A JP H10274201A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- tank
- hydraulic pump
- hydraulic
- 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.)
- Granted
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 abstract description 3
- 230000003449 preventive effect Effects 0.000 abstract 3
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 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 1
- 238000005192 partition Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、油圧ポンプとこれ
を駆動する電動機とをタンク内の作動油中に浸漬させる
ようにした油圧ユニットに関し、特にこのような油圧ユ
ニットにおける油圧ポンプの吸い込み側に設置するフィ
ルタが洗浄、交換等の際に油圧ポンプをタンク外に出す
ことなくタンク外へ取り出せるようになった油圧ユニッ
トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic unit in which a hydraulic pump and an electric motor for driving the hydraulic pump are immersed in hydraulic oil in a tank. The present invention relates to a hydraulic unit in which a filter to be installed can be taken out of a tank without taking a hydraulic pump out of the tank when washing, replacing, or the like.
【０００２】[0002]
【従来の技術】従来、この種の油圧ユニットとして、本
出願人の出願に係る、実開平３−１２４００１号公報に
記載のものがある。このものでは、作動油中に浸漬した
油圧ポンプの吸い込み部にフィルタの出口側が抜き差し
自在に嵌合し、タンクの上板には、フィルタの上方にフ
ィルタを出し入れできる開口が設けてある。そして、こ
の開口を覆うように着脱自在に設置された蓋とフィルタ
が連結棒で連結されている。2. Description of the Related Art Conventionally, as this type of hydraulic unit, there is one described in Japanese Utility Model Laid-Open No. 3-124001 filed by the present applicant. In this case, the outlet side of the filter is removably fitted to the suction part of the hydraulic pump immersed in the hydraulic oil, and the upper plate of the tank is provided with an opening above the filter so that the filter can be taken in and out. The lid and the filter, which are detachably installed so as to cover the opening, are connected by a connecting rod.
【０００３】このため、蓋が設置されていると、フィル
タは蓋により連結棒を介して押さえられて油圧ポンプの
吸い込み部から抜け出すことはない。そして、蓋を取り
外し持ち上げると、フィルタは吸い込み部から離脱し開
口を通してタンク外に取り出されるので、油圧ポンプが
タンク内にあっても、これをタンク外に出すことなくフ
ィルタを簡単にタンク外に取り出すことができる。For this reason, when the lid is provided, the filter is not pressed out of the suction part of the hydraulic pump by being pressed by the lid via the connecting rod. Then, when the lid is removed and lifted, the filter separates from the suction part and is taken out of the tank through the opening. Therefore, even if the hydraulic pump is in the tank, the filter can be easily taken out of the tank without taking it out of the tank. be able to.
【０００４】[0004]
【発明が解決しようとする課題】このものでは、油圧ポ
ンプとこれを駆動する電動機が、タンクの上板に支持台
により取り付けられていてタンクの上板と油圧ポンプと
が相対的に動くことが実質的にないので蓋を上板に取り
付けてフィルタの抜け止めを行っても問題はないが、や
はり本出願人の出願に係る特開平４−２４４６０１号公
報に記載されるような、油圧ポンプとこれを駆動する電
動機とを、タンクに防振具を介して支持される架台に設
置するものにこのようなフィルタの抜け止めの構成を適
用すると、次のような問題点が生じる。In this case, a hydraulic pump and an electric motor for driving the hydraulic pump are mounted on an upper plate of a tank by a support, and the upper plate of the tank and the hydraulic pump move relatively. There is no problem if the cover is attached to the upper plate to prevent the filter from being removed since it is substantially not present, but it is also possible to use a hydraulic pump as described in Japanese Patent Application Laid-Open No. 4-244601 filed by the present applicant. Applying such a filter retaining structure to a motor and a motor mounted on a gantry supported on a tank via a vibration isolator causes the following problems.
【０００５】すなわち、架台は防振具を介してタンクに
取り付けられているので、油圧ポンプが駆動されるとタ
ンクと相対的に架台が動き、この結果、架台に設置され
る油圧ポンプはタンクと相対的に動く。フィルタはタン
クの上板に取り付けられる蓋に連結されるのでフィルタ
と油圧ポンプは相対的に動くことになり、このため、フ
ィルタは、油圧ポンプが動くことによりその吸い込み部
から抜け出して油圧ポンプへのフィルタ作用が得られな
くなったり、フィルタの連結棒との接続箇所等に大きな
力がかかって破損したりする事態が生じるおそれがあ
る。That is, since the gantry is attached to the tank via the vibration isolator, when the hydraulic pump is driven, the gantry moves relative to the tank. As a result, the hydraulic pump installed on the gantry is connected to the tank. Move relatively. Since the filter is connected to the lid attached to the top plate of the tank, the filter and the hydraulic pump move relative to each other, so that the filter moves out of its suction part by the movement of the hydraulic pump, and the filter is connected to the hydraulic pump. There is a possibility that the filter action may not be obtained, or a situation where the filter is connected to the connecting rod or the like with a large force may be damaged.
【０００６】本発明は、このように架台が防振具を介し
てタンクに取り付けられてタンクと油圧ポンプとが相対
的に動く場合での上記のような問題点を解消しようとす
るものである。[0006] The present invention is intended to solve the above-mentioned problem when the gantry is attached to the tank via the vibration isolator and the tank and the hydraulic pump move relatively. .
【０００７】[0007]
【課題を解決するための手段】このため本発明では、作
動油の入ったタンク内に、油圧ポンプとこれを駆動する
電動機とがタンクに防振具を介して支持される架台に設
置されて作動油中に浸漬されるように収容される油圧ユ
ニットにおいて、油圧ポンプには上向きの吸い込み部を
設け、油圧ポンプには上向きの吸い込み部を設け、作動
油の油面より上に位置させる把手部を有したフィルタに
は吸い込み部に抜き差し自在に嵌合する接続部を設け、
フィルタに当接してフィルタの接続部が油圧ポンプの吸
い込み部から抜け出すことを阻止する抜け止め部材を架
台の油面より上の部位へ着脱自在に取り付け、タンクの
上板には、フィルタと抜け止め部材の上に位置してフィ
ルタを出し入れできる開口を設けるとともに、この開口
を覆う着脱自在な蓋を設置するようにした。According to the present invention, a hydraulic pump and an electric motor for driving the hydraulic pump are installed in a tank supported by a tank through a vibration isolator in a tank containing hydraulic oil. In a hydraulic unit housed so as to be immersed in hydraulic oil, a hydraulic pump is provided with an upward suction part, and a hydraulic pump is provided with an upward suction part, and a handle part is located above the oil level of the hydraulic oil. A filter having a connection portion is provided so as to be freely inserted into and removed from the suction portion,
A retaining member that comes into contact with the filter and prevents the filter connection part from coming out of the suction part of the hydraulic pump is detachably attached to a portion above the oil level of the gantry. An opening is provided above the member to allow access to the filter, and a removable lid for covering the opening is provided.
【０００８】このようにしたので、架台がタンクと相対
的に動いても、抜け止め部材は架台に取り付けられるか
ら油圧ポンプに対して動かない。このため、抜け止め部
材によるフィルタの抜け止めが、フィルタと油圧ポンプ
の相対的な動きをもたらすことなく行うことができ、フ
ィルタが吸い込み部から抜け出してフィルタ作用が得ら
れなくなったり、フィルタの破損を招くような事態の発
生が抑えられる。With this configuration, even if the gantry moves relative to the tank, the retaining member is attached to the gantry and does not move with respect to the hydraulic pump. For this reason, the filter can be prevented from being removed by the retaining member without causing relative movement between the filter and the hydraulic pump, so that the filter comes out of the suction portion and the filter function cannot be obtained, or the filter is damaged. The occurrence of inviting situations is suppressed.
【０００９】[0009]
【実施例】以下本発明の実施例を図面により説明する。
１は内部に作動油を入れたタンクで、タンク１の上方の
開口は、大きい上板１Ａと小さい上板１Ｂにより覆われ
ている。そして、タンク１の対向する側壁板２、３の内
側には、各２つの突片４、５を、作動油の油面Ｌより上
に位置させて設けている。６は突片４、５に取り付けら
れた防振具である。防振具６は防振作用を行うゴム部材
６Ａの両端に取り付け用のボルト部材６Ｂ、６Ｃを一体
的に固定しており、この下方端面から突出したボルト部
材６Ｂのねじ込みにより、防振具６は突片４、５の上面
に取り付けられている。Embodiments of the present invention will be described below with reference to the drawings.
Reference numeral 1 denotes a tank containing hydraulic oil therein, and an upper opening of the tank 1 is covered by a large upper plate 1A and a small upper plate 1B. Inside the side wall plates 2, 3 of the tank 1, two projecting pieces 4, 5 are provided above the oil level L of the hydraulic oil. Reference numeral 6 denotes a vibration isolator attached to the protruding pieces 4 and 5. The vibration isolator 6 has fixing bolt members 6B and 6C integrally fixed to both ends of a rubber member 6A that performs a vibration isolating action. The bolt member 6B protruding from the lower end face is screwed into the vibration isolator 6. Are attached to the upper surfaces of the protruding pieces 4 and 5.
【００１０】７は、電動機８とこれにより駆動される油
圧ポンプ９を設置する架台である。なお、油圧ポンプ９
は電動機８に一体的に結合され、電動機８を架台７の下
片７Ａに取り付けることにより設置すると、油圧ポンプ
９も電動機８を介して架台７に設置される。架台７は、
下片７Ａと、この下片７Ａの両端に固定されて上へ延び
る起立片７Ｂ、７Ｃと、起立片７Ｂ、７Ｃの上端に、側
壁板２、３に沿うよう固定された取り付け片７Ｄ、７Ｅ
を有し、取り付け片７Ｄ、７Ｅをボルト部材６Ｃが挿通
して防振具６のゴム部材６Ａに載置されるようになって
おり、このように載置されたとき、電動機８と油圧ポン
プ９はタンク１内の作動油に浸漬される。Reference numeral 7 denotes a mount on which an electric motor 8 and a hydraulic pump 9 driven by the electric motor 8 are installed. The hydraulic pump 9
Is integrally connected to the electric motor 8, and when the electric motor 8 is installed by attaching it to the lower piece 7A of the gantry 7, the hydraulic pump 9 is also installed on the gantry 7 via the electric motor 8. The gantry 7
A lower piece 7A, standing pieces 7B, 7C fixed to both ends of the lower piece 7A and extending upward, and mounting pieces 7D, 7E fixed to upper ends of the rising pieces 7B, 7C along the side walls 2, 3.
The bolts 6C are inserted through the mounting pieces 7D and 7E, and are mounted on the rubber member 6A of the vibration isolator 6, and when mounted in this manner, the electric motor 8 and the hydraulic pump 9 is immersed in the hydraulic oil in the tank 1.
【００１１】また、架台７は、さらに受け片７Ｆ、７Ｇ
を有し、この受け片７Ｆ、７Ｇは、それぞれ前記取り付
け片７Ｄ、７Ｅの上に重ねて置かれ、取り付け片７Ｄ、
７Ｅとともに受け片７Ｆ、７Ｇを挿通した防振具６のボ
ルト部材６Ｃへのナット１０の螺着により、受け片７
Ｆ、７Ｇはそれぞれ取り付け片７Ｄ、７Ｅに一体的に固
定されている。なおまた、このナット１０の螺着により
架台７がタンク１に取り付けられるようになっている。
ここで、この受け片７Ｆ、７Ｇは、保守作業等により、
タンク１の上板１Ａを取り外して油圧ポンプ９や電動機
８をタンク１の外に出す必要があるとき、図示しない取
り付けねじにより架台７の下片７Ａの下面両端に取り付
け片７Ｄ、７Ｅと平行状に取り付けたのち、この下片７
Ａに取り付けた受け片７Ｆ、７Ｇを突片４、５の防振具
６の上にボルト部材６Ｃを挿通させて載置することで、
架台７を電動機８と油圧ポンプ９をタンク外へ出した状
態でタンクに支持させるようにするものである。The gantry 7 further includes receiving pieces 7F and 7G.
The receiving pieces 7F and 7G are placed on the mounting pieces 7D and 7E, respectively.
The nut 7 is screwed into the bolt member 6C of the vibration isolator 6 through which the receiving pieces 7F and 7G are inserted together with the receiving piece 7E.
F and 7G are integrally fixed to the mounting pieces 7D and 7E, respectively. In addition, the frame 7 is attached to the tank 1 by screwing the nut 10.
Here, the receiving pieces 7F and 7G are maintained by maintenance work or the like.
When it is necessary to remove the upper plate 1A of the tank 1 and take out the hydraulic pump 9 or the electric motor 8 out of the tank 1, use mounting screws (not shown) on both ends of the lower surface of the lower piece 7A of the gantry 7 in parallel with the mounting pieces 7D and 7E. After attaching to this lower piece 7
By mounting the receiving pieces 7F and 7G attached to A on the vibration isolator 6 of the protruding pieces 4 and 5 with the bolt member 6C inserted therethrough,
The gantry 7 is supported by the tank with the electric motor 8 and the hydraulic pump 9 out of the tank.
【００１２】１１は、油圧ポンプ９の、吸い込み穴１２
を上に向けた上向きの吸い込み部であり、１３はこの吸
い込み部１１に設置したフィルタである。フィルタ１３
はフィルタエレメント１３Ａと、その内側の多数の穴を
有した穴開き板１３Ｂを保持する上下の端板１３Ｃ、１
３Ｄを有し、下方の端板１３Ｄには、吸い込み部１１の
管部１１Ａの外周に抜き差し自在に嵌合する接続穴１４
をを備えた接続部１５が形成されている。１６は接続穴
１４内周に設置したシールリングである。Reference numeral 11 denotes a suction hole 12 of the hydraulic pump 9.
Is an upward suction part with its side facing upward, and 13 is a filter installed in the suction part 11. Filter 13
Are upper and lower end plates 13C, 1C holding a filter element 13A and a perforated plate 13B having a number of holes inside thereof.
The lower end plate 13D has a connection hole 14 which is fitted to the outer periphery of the tube portion 11A of the suction portion 11 so as to be freely inserted and removed.
Is formed. Reference numeral 16 denotes a seal ring installed on the inner periphery of the connection hole 14.
【００１３】フィルタ１３はさらに、上方の端板１３Ｃ
に取り付けて上へ延びる取り付け棒１７と、取り付け棒
１７の上端に取り付けられた把手部１８を有している。
把手部１８は、フィルタ１３が吸い込み部１１に設置さ
れるとき、作動油の油面Ｌより上に位置するようになっ
ている。把手部１８には、上端面から窪み１９が設けて
ある。そして、把手部１８は、コイル状のばね２０を窪
み１９の底に取り付けて有している。The filter 13 further includes an upper end plate 13C.
And a handle 18 attached to the upper end of the mounting rod 17.
When the filter 13 is installed in the suction unit 11, the handle 18 is located above the oil level L of the hydraulic oil. The handle portion 18 is provided with a depression 19 from the upper end surface. The handle 18 has a coiled spring 20 attached to the bottom of the depression 19.
【００１４】２１は、フィルタ１３の抜け止めを図る抜
け止め部材で、板部２１Ａとこの板部２１Ａの先端側に
前記窪み１９に嵌入する突起部２１Ｂを有し、板部２１
Ａの基端側に設けた通し穴２１Ｃと、受け片７Ｇの通し
穴２２とを通って取り付け片７Ｅのねじ穴２３にねじ込
まれる取り付けねじ２４により、架台７の、図示設置状
態における受け片７Ｇ上に着脱自在に取り付けられる。
そして、突起部２１Ａの先端がフィルタ１３の把手部１
８におけるばね２０に当接してこれを圧縮し、このばね
力でフィルタ１３を反抜け出し方向へ押圧するようにな
っている。Reference numeral 21 denotes a retaining member for preventing the filter 13 from coming off. The retaining member 21 has a plate portion 21A and a projection 21B which fits into the recess 19 at the tip end of the plate portion 21A.
A, through the through hole 21C provided on the base end side of A and the through hole 22 of the receiving piece 7G, and the mounting screw 24 screwed into the screw hole 23 of the mounting piece 7E, the mounting piece 7G Removably mounted on top.
The tip of the projection 21A is the handle 1 of the filter 13.
8, the spring 13 comes into contact with and compresses the spring 20, and the spring 13 presses the filter 13 in the anti-pulling-out direction.
【００１５】２５は、フィルタ１３が出入りできる開口
であり、上板１Ａに取り付けねじ２６により着脱自在に
設置された蓋２７で覆われている。そして開口２５は、
蓋２７を取ったとき取り付けねじ２４の着脱や、把手部
１８の把持ができるよう、抜け止め部材２１やフィルタ
１３の上に設けてある。Reference numeral 25 denotes an opening through which the filter 13 can enter and exit, and is covered by a lid 27 which is detachably installed on the upper plate 1A by a mounting screw 26. And the opening 25 is
The cover 27 is provided on the retaining member 21 and the filter 13 so that the mounting screw 24 can be attached and detached and the handle 18 can be gripped when the lid 27 is removed.
【００１６】２８は上板１Ｂに設けたマニホールドで、
吐出口３０、戻り口３１、ドレン受け口３２が配管接続
できるように形成されている。そして、マニホールド２
８には、タンク１内で、吐出口３０へ作動油を送る油圧
ポンプ９の耐圧ホースによる吐出管３３、戻り口３１か
らの戻り油をタンク１へ戻す戻り管３４、ドレン受け口
３２からのドレンをタンク１内へ戻すドレン管３５が接
続されている。また、３６はエアブリーザ、３７は仕切
り板である。Reference numeral 28 denotes a manifold provided on the upper plate 1B.
The discharge port 30, the return port 31, and the drain port 32 are formed so as to be connected to a pipe. And manifold 2
8, a discharge pipe 33 formed by a pressure-resistant hose of the hydraulic pump 9 that sends hydraulic oil to the discharge port 30 in the tank 1, a return pipe 34 for returning oil from the return port 31 to the tank 1, and a drain from the drain receiving port 32 Is connected to a drain pipe 35 for returning the fluid into the tank 1. 36 is an air breather, and 37 is a partition plate.
【００１７】次ぎにこの実施例の作動を説明する。マニ
ホールド２８の各口３０、３１、３２を図示しない油圧
回路に接続し、電動機８により油圧ポンプ９を駆動する
と、フィルタ１３のフィルタエレメント１３Ａにより濾
過されて、油圧回路へは清浄な作動油が供給され、ま
た、戻り管３４より油圧回路からの戻り油がタンク１に
還流する。Next, the operation of this embodiment will be described. When each port 30, 31, 32 of the manifold 28 is connected to a hydraulic circuit (not shown) and the hydraulic pump 9 is driven by the electric motor 8, the hydraulic element is filtered by the filter element 13A of the filter 13, and clean hydraulic oil is supplied to the hydraulic circuit. The return oil from the hydraulic circuit is returned to the tank 1 from the return pipe 34.
【００１８】このとき、電動機８による駆動に伴い、振
動が生じ、タンク１に防振具６を介して支持される架台
７は設置した電動機８、油圧ポンプ９とともに、防振具
６のゴム部材６Ａを圧縮してタンク１に対し図１の前後
方向に、あるいは左右、上下方向に動く。防振具６によ
り架台７がタンク１とは相対的に動くことができるの
で、架台７側の振動はタンク１へ伝わるのが抑えられタ
ンク１から発散する振動が小さくなる。そして、架台７
にこのような動きが生じても、フィルタ１３の抜け止め
を図る抜け止め部材２１はこの動く架台７に取り付けら
れているので、架台７に設置される油圧ポンプ９に取り
付けられたフィルタ１３に対して動くことはない。この
ため、抜け止め部材２１の突起部２１Ｂが、架台７が動
くことにより把手部１８の窪み１９の内周に当接するよ
うなことは防止され、突起部２１Ｂが窪み１９の内周に
当接する結果取り付け棒１７が曲げモーメントを受けて
端板１３Ｃが破損するといった事態が防止される。そし
て、フィルタ１３は突起部２１Ｂによりばね２０を介し
て押圧され、その接続部１５が油圧ポンプ９の吸い込み
部１１に嵌合した設置状態が維持されて、油圧ポンプ９
へ吸い込まれる作動油に対する濾過作用は良好に維持さ
れる。At this time, vibration is generated by driving by the electric motor 8, and the gantry 7 supported on the tank 1 via the anti-vibration device 6 is mounted on the rubber member of the anti-vibration device 6 together with the installed electric motor 8 and the hydraulic pump 9. 6A is compressed and moves in the front-back direction of FIG. Since the gantry 7 can be moved relative to the tank 1 by the vibration isolator 6, the vibration of the gantry 7 is suppressed from being transmitted to the tank 1, and the vibration diverging from the tank 1 is reduced. And the gantry 7
Even if such a movement occurs, the retaining member 21 for retaining the filter 13 is attached to the movable base 7, so that the filter 13 attached to the hydraulic pump 9 installed on the base 7 Does not move. Therefore, the protrusion 21B of the retaining member 21 is prevented from coming into contact with the inner periphery of the depression 19 of the handle portion 18 due to the movement of the gantry 7, and the protrusion 21B contacts the inner periphery of the depression 19. As a result, a situation in which the end plate 13C is damaged by the bending moment of the mounting rod 17 is prevented. Then, the filter 13 is pressed by the protrusion 21B via the spring 20, and the installation state in which the connection part 15 is fitted to the suction part 11 of the hydraulic pump 9 is maintained.
The filtering action on the hydraulic oil sucked into the oil tank is well maintained.
【００１９】そして、洗浄や交換等でフィルタ１３を取
り出すときは、電動機８を停止し、取り付けねじ２６を
取り外して蓋２７を取り外し、開口２５から取り付けね
じ２４を取り外して抜け止め部材２１を取り出す。そし
て、把手部１８を把持して上方へ引き、フィルタ１３
を、その接続部１５を油圧ポンプ９の吸い込み部１１か
ら引き抜いた後、開口２５からタンク１の外へ取り出す
のである。When removing the filter 13 for washing or replacement, the motor 8 is stopped, the mounting screw 26 is removed, the lid 27 is removed, the mounting screw 24 is removed from the opening 25, and the retaining member 21 is removed. Then, the user grips the handle 18 and pulls it upward to remove the filter 13.
Is pulled out of the tank 1 through the opening 25 after the connection portion 15 is pulled out from the suction portion 11 of the hydraulic pump 9.
【００２０】また、再度のフィルタ１３の取り付けは、
上記と逆に、把手部１８を把持してフィルタ１３を開口
２５からタンク１内へ入れ、接続部１５を油圧ポンプ９
の吸い込み部１１へ嵌合させて設置状態においた後、抜
け止め部材２１を取り付けねじ２４で取り付けてフィル
タ１３の抜け止めを行い、取り付けが完了する。そして
蓋２７が再び取り付けねじ２６により設置される。こ
の、フィルタ１３の取り外し、取り付け作業は、把手部
１８や、抜け止め部材２１が油面Ｌより上に位置する
で、手が濡れる煩わしさを伴うことなく行うことが可能
となる。The filter 13 is attached again.
Contrary to the above, the filter 18 is inserted into the tank 1 through the opening 25 by grasping the handle 18 and the connection 15 is connected to the hydraulic pump 9.
After the filter 13 is fitted to the suction portion 11 and placed in the installation state, the retaining member 21 is attached with the attaching screw 24 to prevent the filter 13 from coming off, and the attachment is completed. Then, the lid 27 is installed again with the mounting screw 26. Since the handle 18 and the retaining member 21 are located above the oil level L, the filter 13 can be removed and attached without troublesome wet hands.
【００２１】なお、実施例ではばね２０が把手部１８の
窪み１９の底に取り付けられているが、このばねを抜け
止め部材２１の突起部２１Ｂにに取り付け、突起部２１
Ｂを窪み１９に嵌入すると、該ばねの下端が窪み１９の
底面に当接してこれによるばね力でフィルタ１３が抜け
出さないように押圧するようにしてもよい。また、抜け
止め部材２１に突起部２１Ｂを設けず、板部２１Ａを把
手部１８の上面に当接させたり、板部２１Ａを下方に屈
曲してフィルタ１３の端板１３Ｃに当接させることもで
き、このとき、フィルタ１３側と板部２１Ａ側の当接部
分間に、板部２１Ａ側、あるいはフィルタ１３側に取り
付けたばねを介在させて、ばね力を抜け出さないように
フィルタ１３へ作用させることもできる。In the embodiment, the spring 20 is attached to the bottom of the depression 19 of the handle portion 18, but this spring is attached to the projection 21 B of the retaining member 21, and
When B is fitted into the depression 19, the lower end of the spring may abut against the bottom surface of the depression 19, and the spring 13 may press the filter 13 so as not to come out. Further, without providing the protrusion 21B on the retaining member 21, the plate 21A may be brought into contact with the upper surface of the handle portion 18, or the plate 21A may be bent downward to come into contact with the end plate 13C of the filter 13. At this time, a spring attached to the plate portion 21A or the filter 13 is interposed between the contact portion between the filter 13 and the plate portion 21A so as to act on the filter 13 so that the spring force does not escape. Can also.
【００２２】[0022]
【発明の効果】このように本発明の油圧ユニットでは、
フィルタの抜け止め部材が架台に取り付けられるので、
抜け止め部材によるフィルタの抜け止めが、フィルタと
油圧ポンプの相対的な動きをもたらすことなく行うこと
ができ、フィルタが吸い込み部から抜け出してフィルタ
作用が得られなくなったり、フィルタの破損を招くよう
な事態の発生が抑えられる。As described above, in the hydraulic unit of the present invention,
Since the filter retaining member is attached to the base,
The filter can be prevented from coming off by the retaining member without causing relative movement between the filter and the hydraulic pump, and the filter may come out of the suction portion and the filter function may not be obtained, or the filter may be damaged. The occurrence of a situation is suppressed.
【００２３】また、フィルタの把手部や、抜け止め部材
の架台での取り付け部位がタンク内の作動油の油面より
上であるので、フィルタの取り外し作業が、手を濡らす
煩わしさを伴うことなく行うことが可能となる。Further, since the handle portion of the filter and the mounting portion of the retaining member on the pedestal are above the oil level of the hydraulic oil in the tank, the work of removing the filter does not involve the trouble of wet hands. It is possible to do.
【図１】本発明の実施例を示す図２のＡ−Ａ線に沿う断
面図。FIG. 1 is a sectional view taken along line AA of FIG. 2 showing an embodiment of the present invention.
【図２】本発明の実施例を示す図１のＢ−Ｂ線に沿う断
面図。FIG. 2 is a sectional view taken along the line BB of FIG. 1 showing the embodiment of the present invention.
【図３】本発明の実施例の要部拡大断面図。FIG. 3 is an enlarged sectional view of a main part of the embodiment of the present invention.
【図４】本発明の実施例の上板を外した部分拡大平面
図。FIG. 4 is a partially enlarged plan view of the embodiment of the present invention from which an upper plate is removed.
１ タンク １Ａ 上板 ６ 防振具 ７ 架台 ８ 電動機 ９ 油圧ポンプ １１ 吸い込み部 １３ フィルタ １５ 接続部 １８ 把手部 ２５ 開口 ２７ 蓋 DESCRIPTION OF SYMBOLS 1 Tank 1A Upper plate 6 Anti-vibration tool 7 Stand 8 Electric motor 9 Hydraulic pump 11 Suction part 13 Filter 15 Connection part 18 Handle part 25 Opening 27 Lid
Claims (1)
とこれを駆動する電動機とがタンクに防振具を介して支
持される架台に設置されて作動油中に浸漬されるように
収容される油圧ユニットにおいて、油圧ポンプには上向
きの吸い込み部を設け、作動油の油面より上に位置させ
る把手部を有したフィルタには吸い込み部に抜き差し自
在に嵌合する接続部を設け、フィルタに当接してフィル
タの接続部が油圧ポンプの吸い込み部から抜け出すこと
を阻止する抜け止め部材を架台の油面より上の部位へ着
脱自在に取り付け、タンクの上板には、フィルタと抜け
止め部材の上に位置してフィルタを出し入れできる開口
を設けるとともに、この開口を覆う着脱自在な蓋を設置
したことを特徴とする油圧ユニット。1. A hydraulic pump and an electric motor for driving the same are installed in a tank supported by a tank via a vibration isolator in a tank containing hydraulic oil, and are housed so as to be immersed in the hydraulic oil. In the hydraulic unit to be provided, the hydraulic pump is provided with an upward suction portion, the filter having a handle portion positioned above the oil level of the hydraulic oil is provided with a connection portion which is detachably fitted to the suction portion, A retaining member for preventing the connecting portion of the filter from coming out of the suction portion of the hydraulic pump in contact with the filter is detachably attached to a portion above the oil level of the gantry, and the filter and the retaining member are attached to the upper plate of the tank. A hydraulic unit, wherein an opening is provided on the top of the filter so that a filter can be taken in and out, and a detachable lid for covering the opening is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09464997A JP3745871B2 (en) | 1997-03-27 | 1997-03-27 | hydraulic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09464997A JP3745871B2 (en) | 1997-03-27 | 1997-03-27 | hydraulic unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10274201A true JPH10274201A (en) | 1998-10-13 |
| JP3745871B2 JP3745871B2 (en) | 2006-02-15 |
Family
ID=14116113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09464997A Expired - Fee Related JP3745871B2 (en) | 1997-03-27 | 1997-03-27 | hydraulic unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3745871B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7354511B2 (en) * | 2004-07-03 | 2008-04-08 | Jungheiurich Aktiengesellschaft | Hydraulic unit for industrial trucks |
-
1997
- 1997-03-27 JP JP09464997A patent/JP3745871B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7354511B2 (en) * | 2004-07-03 | 2008-04-08 | Jungheiurich Aktiengesellschaft | Hydraulic unit for industrial trucks |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3745871B2 (en) | 2006-02-15 |
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