JPH0539201Y2 - - Google Patents
Info
- Publication number
- JPH0539201Y2 JPH0539201Y2 JP1988139143U JP13914388U JPH0539201Y2 JP H0539201 Y2 JPH0539201 Y2 JP H0539201Y2 JP 1988139143 U JP1988139143 U JP 1988139143U JP 13914388 U JP13914388 U JP 13914388U JP H0539201 Y2 JPH0539201 Y2 JP H0539201Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- electric motor
- board
- tank
- vibration
- 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
- 238000013016 damping Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000011343 solid material Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 229920001971 elastomer Polymers 0.000 description 8
- 239000005060 rubber Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000002238 attenuated effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Vibration Prevention Devices (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、液圧ポンプ及び液圧ポンプを駆動す
る電動機を取り付けて液圧ポンプがくみ出す作動
液を貯蔵しているタンクを備えた、液圧駆動のた
めの液体タンク装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention comprises a hydraulic pump and a tank that stores the hydraulic fluid pumped by the hydraulic pump, and is equipped with a hydraulic pump and an electric motor that drives the hydraulic pump. The present invention relates to a liquid tank device for hydraulic drive.
従来のものでは、第４図の如く、騒音の低減を
はかるため、液圧ポンプＰと電動機Ｍを防振ゴム
Ａを介してタンクＴに取り付けた基板Ｂ上に取り
付け、防振ゴムＡにより、液圧ポンプＰ及び電動
機Ｍが生ずる振動のタンクＴへの伝達を低減する
ようにしていた。
In the conventional system, as shown in Fig. 4, in order to reduce noise, a hydraulic pump P and an electric motor M are mounted on a board B attached to a tank T via a vibration isolating rubber A. The transmission of vibrations generated by the hydraulic pump P and electric motor M to the tank T is reduced.
〔考案が解決しようとする問題点〕
しかしながらこのものでは、防振ゴムＡにより
タンクＴへの振動伝達が低減されて、該振動に基
づく、タンクＴから発散する音を小さくできる
が、液圧ポンプＰ、電動機Ｍからの振動が、基板
Ｂの下面から音として空気中に発散するため、特
に液圧ポンプＰ、電動機Ｍが大出力の場合、騒音
を満足に低減できない問題点があつた。[Problem to be solved by the invention] However, in this device, the vibration isolating rubber A reduces the transmission of vibration to the tank T, and the sound emitted from the tank T based on the vibration can be reduced, but the hydraulic pump Since the vibrations from the pump P and the electric motor M are emitted into the air as sound from the lower surface of the substrate B, there is a problem in that the noise cannot be satisfactorily reduced, especially when the hydraulic pump P and the electric motor M have a large output.
本考案は、液圧ポンプ及び電動機を取り付ける
基板自体にも制振作用を発揮させて、基板から発
散する音を小さくし、騒音を小さくできる液圧装
置を実現しようとするものである。 The present invention aims to realize a hydraulic device that can reduce noise by exerting a damping effect on the board itself to which the hydraulic pump and electric motor are attached, thereby reducing the sound emitted from the board.
このため本考案の液体タンク装置は、液圧ポン
プ及び電動機を取り付ける基板は、厚さ方向に隔
てた板材と、この板材間に介在してゴム様の弾性
体中に固体粒子が分散した制振材とが固着して一
体化されており、液圧ポンプ及び電動機を一方の
板材上に配置して基板に取り付けている。
For this reason, in the liquid tank device of the present invention, the substrate on which the hydraulic pump and electric motor are attached consists of plates separated in the thickness direction, and a damping material with solid particles dispersed in a rubber-like elastic body interposed between the plates. The hydraulic pump and electric motor are placed on one plate and attached to the board.
このような構成によれば、液圧ポンプ、電動機
から基板に伝わる振動は、基板の厚さ方向に伝わ
るに際し、制振材によつてエネルギが減衰され、
このため、該振動に基づいて基板の液圧ポンプ、
電動機を取り付ける面と反対の面から発散する音
が小さくなり、液体タンク装置が生じる騒音を小
さくできる。
According to such a configuration, when the vibration transmitted from the hydraulic pump and the electric motor to the board is transmitted in the thickness direction of the board, the energy is attenuated by the damping material.
Therefore, based on the vibration, the hydraulic pump of the substrate,
The sound emitted from the surface opposite to the surface on which the electric motor is mounted is reduced, and the noise generated by the liquid tank device can be reduced.
以下本考案の一実施例を第１図、２図、３図に
より説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3.
１はタンクで、内部に作動液を貯蔵し、上方を
上板１Ａで閉じている。タンク１の上面である上
板１Ａ上には、本考案の防振材である複数の防振
ゴム２を介して基板３が取り付けられている。防
振ゴム２は、基板３とタンク１間の振動伝達を低
減する防振作用を成すゴム部２Ａの両端に固着し
たフランジ２Ｂ，２Ｃにボルト２Ｄ，２Ｅが設け
てあり、下方のボルト２Ｄを上板１Ａに螺着し、
基板３を挿通した上方のボルト２Ｅにナツト２Ｆ
を螺着して、基板３を上板１Ａと離して平行状に
取り付けている。基板３は、間に、本考案の制振
材である制振弾性板３Ａを置いた鋼板３Ｂ，３Ｃ
が厚さ方向に重ねられており、制振弾性板３Ａを
接着剤によつて鋼板３Ｂ，３Ｃに接着して一体的
な基板３としている。そして制振弾性板３Ａは、
たとえば株式会社ブリヂストンの商標名LRダン
パーの如く、鉛等の高密度の固体粒子を一様に分
散して含有したゴム、樹脂、アスフアルト等のゴ
ム様の弾性体から成り、振動に伴なう固体粒子と
その周囲の弾性体部分との間の摩擦により振動の
エネルギを熱として発散させることで減衰させ、
振動や振動が伝わることを抑えるものである。基
板３には、鋼板３Ｃ上に電動機４が載置されてボ
ルト５により取り付けられており、また鋼板３Ｃ
に溶接されたスペーサ３Ｄに液圧ポンプ６が載置
され、ボルト７により取り付けられている。電動
機４と液圧ポンプ６の軸４Ａ，６Ａは、カツプリ
ングカバー８内で、カツプリング９により連結さ
れている。カツプリングカバー８は、下端に取付
フランジ８Ｂ，８Ｃを屈曲形成していて軸方向視
で倒立Ｕ状の本体８Ａと、本体８Ａ両端にそれぞ
れ固着したおおい片８Ｄ，８Ｅを有している。そ
してカツプリングカバー８は、本体８Ａの内面と
取付フランジ８Ｂ，８Ｃの下面に、基板３での制
振弾性板３Ａと同様な制振弾性板８Ｆを、接着に
より一体に有し、取付フランジ８Ｂ，８Ｃを挿通
するボルト１０により、鋼板３Ｃ上に取り付けら
れている。１１は、タンク１内の作動液をくみ出
す液圧ポンプ６の吸込管、１２は液圧ポンプ６の
吐出管、１３は戻り管であり、吐出管１２と戻り
管１３は図示しない切換弁を介しアクチユエータ
に接続され、また１４はリリーフ弁である。 Reference numeral 1 denotes a tank which stores a working fluid inside and is closed at the top with an upper plate 1A. A substrate 3 is attached to an upper plate 1A, which is the upper surface of the tank 1, via a plurality of vibration isolating rubbers 2, which are the vibration isolating material of the present invention. The anti-vibration rubber 2 has bolts 2D and 2E provided on flanges 2B and 2C fixed to both ends of a rubber part 2A that has a vibration-isolating effect to reduce vibration transmission between the board 3 and the tank 1. Screw onto the top plate 1A,
Attach the nut 2F to the upper bolt 2E that has passed through the board 3.
The board 3 is mounted parallel to the upper board 1A apart from the upper board 1A. The substrate 3 is composed of steel plates 3B and 3C with a damping elastic plate 3A, which is a damping material of the present invention, placed between them.
are stacked in the thickness direction, and the damping elastic plate 3A is bonded to the steel plates 3B and 3C with an adhesive to form an integrated substrate 3. And the damping elastic plate 3A is
For example, Bridgestone Corporation's LR Damper, a trademark, is made of a rubber-like elastic body such as rubber, resin, or asphalt that contains uniformly dispersed high-density solid particles such as lead. Vibration energy is attenuated by dissipating it as heat due to the friction between the particle and the surrounding elastic body,
This suppresses the transmission of vibrations and vibrations. A motor 4 is placed on the steel plate 3C and attached to the board 3 with bolts 5, and the steel plate 3C
A hydraulic pump 6 is placed on the spacer 3D welded to the spacer 3D, and is attached with bolts 7. The electric motor 4 and the shafts 4A, 6A of the hydraulic pump 6 are connected within a coupling cover 8 by a coupling 9. The coupling cover 8 has a main body 8A having mounting flanges 8B and 8C bent at the lower end and having an inverted U shape when viewed in the axial direction, and cover pieces 8D and 8E fixed to both ends of the main body 8A, respectively. The coupling cover 8 has a vibration damping elastic plate 8F, similar to the vibration damping elastic plate 3A on the board 3, integrally bonded to the inner surface of the main body 8A and the lower surface of the mounting flanges 8B, 8C, and the mounting flange 8B. , 8C are mounted on the steel plate 3C by bolts 10 that pass through them. 11 is a suction pipe of the hydraulic pump 6 that pumps out the working fluid in the tank 1, 12 is a discharge pipe of the hydraulic pump 6, and 13 is a return pipe.The discharge pipe 12 and the return pipe 13 have switching valves (not shown). 14 is a relief valve.
次に一実施例の作用を説明する。 Next, the operation of one embodiment will be explained.
タンク１内の作動液をくみ出して図示しないア
クチユエータに供給できるよう、液圧ポンプ６を
電動機４で駆動すると、基板３には、電動機４、
液圧ポンプ６によつて生じる振動が伝えられる。
この振動のタンク１への伝達は、基板３とタンク
１の上板１Ａの間に介在した防振ゴム２によつて
低減されるから、電動機４と液圧ポンプ６の振動
に基づき、タンク１から周囲に発散する音は小さ
くなる。そして、基板３では、鋼板３Ｃから鋼板
３Ｂへ制振弾性板３Ａをへて伝わろうとする電動
機４及び液圧ポンプ６からの振動は、両鋼板３
Ｃ，３Ｂと一体に接着されている制振弾性板３Ａ
によつてエネルギが減衰され、鋼板３Ｂに伝わる
ことが抑えられるため、電動機４及び液圧ポンプ
６の振動に基づき、鋼板３Ｂの下面から発散する
音が小さくなる。さらにまた、カツプリングカバ
ー８の制振弾性板８Ｆにより、カツプリング９の
回転で生じる音は減衰されてカツプリングカバー
８の外に出る音が小さくなると共に、フランジ８
Ｂ，８Ｃ下面にも存在する制振弾性板８Ｆによ
り、鋼板３Ｃからカツプリングカバー８に伝わる
振動も減衰され、該振動に基づきカツプリングカ
バー８外周から発散する音も小さくなる。このよ
うに各部から発散する音を小さくできるから、騒
音の小さい液体タンク装置が得られる。 When the hydraulic pump 6 is driven by the electric motor 4 so that the hydraulic fluid in the tank 1 can be pumped out and supplied to an actuator (not shown), the electric motor 4,
The vibrations generated by the hydraulic pump 6 are transmitted.
The transmission of this vibration to the tank 1 is reduced by the vibration isolating rubber 2 interposed between the substrate 3 and the upper plate 1A of the tank 1. The sound emitted to the surrounding area is reduced. In the substrate 3, the vibrations from the electric motor 4 and the hydraulic pump 6 that try to be transmitted from the steel plate 3C to the steel plate 3B via the damping elastic plate 3A are transmitted to both steel plates 3B.
Damping elastic plate 3A bonded integrally with C and 3B
Since the energy is attenuated and the transmission to the steel plate 3B is suppressed, the sound emitted from the lower surface of the steel plate 3B based on the vibrations of the electric motor 4 and the hydraulic pump 6 is reduced. Furthermore, the vibration damping elastic plate 8F of the coupling cover 8 attenuates the sound generated by the rotation of the coupling 9, reducing the sound coming out of the coupling cover 8.
Vibrations transmitted from the steel plate 3C to the coupling cover 8 are also damped by the vibration damping elastic plate 8F which is also present on the lower surfaces of B and 8C, and the sound emitted from the outer periphery of the coupling cover 8 based on the vibrations is also reduced. Since the sound emitted from each part can be reduced in this way, a liquid tank device with low noise can be obtained.
制振弾性板３Ａは、鋼板３Ｂ，３Ｃ間に置いて
接着により鋼板３Ｂ，３Ｃと一体化されているた
め制振効果を十分発揮でき（なお、試験による
と、基板３から鋼板３Ｂを取り去つた様態とした
ときには顕著な効果が得られなかつた）、また、
鋼板３Ｂ，３Ｃ間に置かれるため液圧ポンプ６、
電動機４の基板３への取り付けや、基板３のタン
クへの取り付けに際し、損傷を受けることが防止
される。 The damping elastic plate 3A is placed between the steel plates 3B and 3C and is integrated with the steel plates 3B and 3C by adhesion, so it can sufficiently exhibit the damping effect (according to tests, when the steel plate 3B is removed from the board 3) (No significant effect was obtained when it was in a vertical mode), and
A hydraulic pump 6 is placed between the steel plates 3B and 3C.
Damage is prevented when the electric motor 4 is attached to the board 3 or when the board 3 is attached to the tank.
なお、基板３は、タンク１の上面には限らず、
各側面に取り付けることもできるし、液圧ポンプ
６と電動機４はそれぞれ基板３に取り付けている
が、液圧ポンプ６と電動機４のどちらか一方を他
方に取り付けて両者一体形としたものを基板３に
取り付けることもできる。 Note that the substrate 3 is not limited to the top surface of the tank 1;
They can be attached to each side, or the hydraulic pump 6 and the electric motor 4 are each attached to the board 3, but it is possible to attach either the hydraulic pump 6 or the electric motor 4 to the other so that they are integrated into the board. It can also be attached to 3.
このように本考案による液体タンク装置は、液
圧ポンプ及び電動機を取り付ける基板は、厚さ方
向に隔てた板材と、この板材間に介在してゴム様
の弾性体中に固体粒子が分散した制振材とが固着
して一体化されており、液圧ポンプ及び電動機を
一方の板材上に配置して基板に取り付けたため、
液圧ポンプ。電動機から基板に伝わる振動は、基
板の厚さ方向に伝わるに際し、制振材によつてエ
ネルギが減衰され、該振動に基づいて基板の液圧
ポンプ、電動機を取り付ける面と反対の面から発
散する音が小さくなり、液圧タンク装置が生じる
騒音を小さくできる。制振材は、板材間に介在し
て板材と一体化されており制振効果を十分発揮で
きると共に板材間に介在するから、液圧ポンプ、
電動機の基板への取り付けや、基板のタンクへの
取り付けに際し損傷を受けることが防止される。
As described above, in the liquid tank device according to the present invention, the substrate on which the hydraulic pump and the electric motor are attached consists of plates separated in the thickness direction, and a control plate in which solid particles are dispersed in a rubber-like elastic body interposed between the plates. The vibration material is fixed and integrated, and the hydraulic pump and electric motor are placed on one board and attached to the board.
hydraulic pump. When the vibration transmitted from the electric motor to the board is transmitted in the thickness direction of the board, the energy is attenuated by the damping material, and based on the vibration, it is radiated from the side of the board opposite to the side where the hydraulic pump and electric motor are attached. The sound is reduced, and the noise generated by the hydraulic tank device can be reduced. The damping material is interposed between the plate materials and is integrated with the plate materials, so it can sufficiently exhibit the vibration damping effect, and because it is interposed between the plate materials, it can be used for hydraulic pumps,
This prevents damage when attaching the motor to the board or attaching the board to the tank.
第１図は本考案の一実施例の正面図、第２図
は、第１図の要部を、部分断面で示した拡大図、
第３図は、第１図におけるカツプリングカバーを
部分断面で示した拡大側面図、第４図は従来例の
正面図。
１……タンク、２……防振ゴム、３……基板、
３Ａ……制振弾性板、３Ｂ，３Ｃ……鋼板、４…
…電動機、６……液圧ポンプ。
FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is an enlarged partial cross-sectional view of the main parts of FIG.
3 is an enlarged side view showing the coupling cover in FIG. 1 in partial cross section, and FIG. 4 is a front view of the conventional example. 1... Tank, 2... Anti-vibration rubber, 3... Board,
3A... vibration damping elastic plate, 3B, 3C... steel plate, 4...
...Electric motor, 6...Hydraulic pump.
Claims (1)
くみ出す液圧ポンプ及びこの液圧ポンプを駆動す
る電動機とを有し、これら液圧ポンプと電動機と
を取り付ける基板を振動の伝達を低減する防振材
を介してタンクに取り付けた液体タンク装置にお
いて、この液圧ポンプと電動機とを取り付ける基
板は、厚さ方向に隔てた板材と、この板材間に介
在してゴム様の弾性体中に固体粒子が分散した制
振材とが固着して一体化されており、液圧ポンプ
及び電動機を一方の板材上に配置して基板に取り
付けて成る液体タンク装置。 It has a tank that stores hydraulic fluid, a hydraulic pump that pumps out the hydraulic fluid from the tank, and an electric motor that drives the hydraulic pump. In a liquid tank device that is attached to a tank via a vibration material, the substrate on which the hydraulic pump and electric motor are attached consists of plates separated in the thickness direction, and a solid material contained in a rubber-like elastic body interposed between the plates. A liquid tank device in which a vibration damping material in which particles are dispersed is fixed and integrated, and a hydraulic pump and electric motor are arranged on one plate and attached to a substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988139143U JPH0539201Y2 (en) | 1988-10-25 | 1988-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988139143U JPH0539201Y2 (en) | 1988-10-25 | 1988-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0259302U JPH0259302U (en) | 1990-04-27 |
| JPH0539201Y2 true JPH0539201Y2 (en) | 1993-10-05 |
Family
ID=31402129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988139143U Expired - Lifetime JPH0539201Y2 (en) | 1988-10-25 | 1988-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0539201Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989074A (en) * | 1972-12-29 | 1974-08-26 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526784Y2 (en) * | 1971-08-17 | 1977-02-12 |
-
1988
- 1988-10-25 JP JP1988139143U patent/JPH0539201Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989074A (en) * | 1972-12-29 | 1974-08-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0259302U (en) | 1990-04-27 |
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