JP2010101201A - Base of pump unit - Google Patents

Base of pump unit Download PDF

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JP2010101201A
JP2010101201A JP2008271105A JP2008271105A JP2010101201A JP 2010101201 A JP2010101201 A JP 2010101201A JP 2008271105 A JP2008271105 A JP 2008271105A JP 2008271105 A JP2008271105 A JP 2008271105A JP 2010101201 A JP2010101201 A JP 2010101201A
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motor
pump body
mounting portion
pump
base
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JP5209435B2 (en
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Akihiro Yamanaka
章弘 山中
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Toyo Machinery and Metal Co Ltd
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Toyo Machinery and Metal Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a base of a pump unit securing sufficient bending strength and twisting strength of a connecting part connecting a pump body mounting part and a motor mounting part while constructing the connecting part with the minimum member, and satisfying mechanical strength required for a base while lightening the weight to a limit. <P>SOLUTION: In the base 10 of the pump unit 12 including the pump body mounting part 20, the motor mounting part 22, and the connecting part 24, the connecting part 24 is composed of a pair of connecting members 50a, 50b, and a pair of inclined connecting members 52a, 52b, a pair of the connecting members 50a, 50b is formed in such a manner that the length on the pump body mounting part 20 side is longer than the length on the motor mounting part 22 side, and a pair of the inclined connecting members 52a, 52b is formed in such a manner that the length is longer than the width. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ポンプユニットが取り付けられるベースに関する。   The present invention relates to a base to which a pump unit is attached.

ダイカストマシンなどの油圧機械には、圧油を高い圧力で供給するためのポンプユニットが設けられており、このポンプユニットは、一般に、ポンプ本体の駆動軸とモータの出力軸とがカップリング等を介して連結された状態で、鋳物等で形成されたベースの上面に取り付けられており（例えば、特許文献１）、ポンプユニットが取り付けられるベースは、ポンプ本体が取り付けられるポンプ本体取付部と、モータが取り付けられるモータ取付部とを備えている。   A hydraulic machine such as a die-casting machine is provided with a pump unit for supplying pressurized oil at a high pressure. In general, a pump shaft of a pump body and a motor output shaft are coupled with each other. Are connected to the upper surface of a base formed of a casting or the like (for example, Patent Document 1), and the base to which the pump unit is attached includes a pump body attaching portion to which the pump body is attached, a motor The motor attachment part to which is attached.

従来のベース１は、図７〜図９に示すように、平面視四角形状のポンプ本体取付部２と、同じく平面視四角形状のモータ取付部３と、ポンプ本体取付部２およびモータ取付部３を連結する連結部４とで構成されており、ベース１における上下縁部５ａ、５ｂの縦幅は、中央平面部５ｃ等の縦幅に比べて長く形成されている（図８）。   As shown in FIGS. 7 to 9, the conventional base 1 includes a pump body mounting portion 2 having a square shape in plan view, a motor mounting portion 3 having a rectangular shape in plan view, and a pump body mounting portion 2 and a motor mounting portion 3. The vertical width of the upper and lower edge portions 5a and 5b in the base 1 is longer than the vertical width of the central flat portion 5c and the like (FIG. 8).

なお、モータＹの大きさは、ポンプ本体Ｘの大きさよりも大きいことが一般的であることから、ベース１においても、モータ取付部３の大きさがポンプ本体取付部２の大きさよりも大きく形成されている。このため、連結部４の形状は、ポンプ本体取付部２側端辺よりもモータ取付部３側端辺の方が長い平面視台形状になっている。
特開平６−４２５０１号公報 Since the size of the motor Y is generally larger than the size of the pump body X, the size of the motor mounting portion 3 is also made larger than the size of the pump body mounting portion 2 in the base 1. Has been. For this reason, the shape of the connecting portion 4 is a trapezoidal shape in plan view, with the motor attachment portion 3 side edge being longer than the pump body attachment portion 2 side edge.
Japanese Patent Laid-Open No. 6-42501

ところが、近年、鉄鋼など原料の価格高騰の影響を受け、ポンプユニットのベースにも、単に機械的強度を満足するだけではなく、機械的強度を満足しつつ、より軽量化することが求められている。   However, in recent years, due to the impact of soaring prices of raw materials such as steel, the base of the pump unit is required not only to satisfy the mechanical strength but also to reduce the weight while satisfying the mechanical strength. Yes.

すなわち、上述したベース１は、ポンプユニットのベースとして要求される機械的強度を満足しているものの、軽量化という点では、未だ満足できるものではなかった。   That is, the above-described base 1 satisfies the mechanical strength required as the base of the pump unit, but is not yet satisfactory in terms of weight reduction.

本発明は、このような従来技術の問題に鑑みて開発されたものである。それゆえに本発明の主たる課題は、限界まで軽量化しつつ、しかもベースに要求される機械的強度を満足することのできるポンプユニットのベースを供給することにある。   The present invention has been developed in view of such problems of the prior art. Therefore, a main object of the present invention is to provide a base of a pump unit that can satisfy the mechanical strength required for the base while reducing the weight to the limit.

請求項１に記載した発明は、「平面視四角形状に形成されており、ポンプユニット１２のポンプ本体１４が取り付けられるポンプ本体取付部２０と、
平面視四角形状に形成されるとともに、前記ポンプ本体取付部２０に並べて配設されており、前記ポンプユニット１２のモータ１６が取り付けられるモータ取付部２２と、
前記ポンプ本体取付部２０および前記モータ取付部２２を連結する連結部２４とを備えており、
前記連結部２４は、
前記ポンプ本体取付部２０における、前記モータ取付部２２に対向するポンプ本体側辺３２ｂの一方端３２ｂ１と、前記モータ取付部２２における、前記ポンプ本体取付部２０に対向して前記ポンプ本体側辺３２ｂよりも長いモータ側辺４０ａの一方端４０ａ１とを連結する第１連結部材５０ａ、
前記ポンプ本体側辺３２ｂの他方端３２ｂ２と、前記モータ側辺４０ａの他方端４０ａ２とを連結する第２連結部材５０ｂ、
前記ポンプ本体側辺３２ｂの一方端３２ｂ１と、前記モータ側辺４０ａの他方端４０ａ２とを連結する第１傾斜連結部材５２ａ、および
前記ポンプ本体側辺３２ｂの他方端３２ｂ２と、前記モータ側辺４０ａの一方端４０ａ１とを連結する第２傾斜連結部材５２ｂを備えており、
前記第１連結部材５０ａおよび前記第２連結部材５０ｂの縦幅は、前記モータ取付部２２側よりも前記ポンプ本体取付部２０側の方が長く形成されており、
前記第１傾斜連結部材５２ａおよび前記第２傾斜連結部材５２ｂの縦幅は、横幅よりも長く形成されていることを特徴とするポンプユニットのベース１０」である。 The invention described in claim 1 is “a pump body mounting portion 20 which is formed in a square shape in plan view and to which the pump body 14 of the pump unit 12 is mounted;
A motor mounting portion 22 that is formed in a quadrangular shape in plan view and is arranged side by side on the pump body mounting portion 20 to which the motor 16 of the pump unit 12 is mounted;
A connecting portion 24 for connecting the pump body mounting portion 20 and the motor mounting portion 22;
The connecting portion 24 is
One end 32b1 of the pump main body side 32b facing the motor mounting portion 22 in the pump main body mounting portion 20 and the pump main body side 32b facing the pump main body mounting portion 20 in the motor mounting portion 22. A first connecting member 50a that connects one end 40a1 of the longer motor side 40a,
A second connecting member 50b for connecting the other end 32b2 of the pump body side 32b and the other end 40a2 of the motor side 40a;
A first inclined connecting member 52a that connects one end 32b1 of the pump body side 32b and the other end 40a2 of the motor side 40a, the other end 32b2 of the pump body side 32b, and the motor side 40a A second inclined connecting member 52b for connecting the one end 40a1 of the
The vertical width of the first connecting member 50a and the second connecting member 50b is formed longer on the pump body mounting portion 20 side than on the motor mounting portion 22 side,
A vertical width of the first inclined connecting member 52a and the second inclined connecting member 52b is longer than the horizontal width of the base 10 "of the pump unit.

ポンプ本体１４が取り付けられたポンプ本体取付部２０、およびモータ１６が取り付けられたモータ取付部２２は、それぞれポンプ本体１４あるいはモータ１６と一体になり、大きな応力を加えても変形しない「剛体」と考えることができるので、ベース１０に作用する応力、例えば、何らかのトラブルによってポンプ本体１４の駆動軸１４ａがロック状態となったとき、モータ１６の出力軸１６ａから出力される大きなトルク（回転力）に起因して、ポンプ本体取付部２０をモータ取付部２２に対してモータ１６の回転方向にねじる「ねじり応力Ｔ」は、ポンプ本体取付部２０とモータ取付部２２とを連結する連結部２４に対して集中的に作用することになる。   The pump body attachment portion 20 to which the pump body 14 is attached and the motor attachment portion 22 to which the motor 16 is attached are integrated with the pump body 14 or the motor 16, respectively, and are “rigid bodies” that do not deform even when a large stress is applied. Since it can be considered, when the driving shaft 14a of the pump main body 14 is locked due to some trouble, for example, due to some trouble, the torque (rotational force) output from the output shaft 16a of the motor 16 is increased. As a result, the “torsional stress T” that twists the pump body mounting portion 20 with respect to the motor mounting portion 22 in the rotational direction of the motor 16 is applied to the connecting portion 24 that connects the pump body mounting portion 20 and the motor mounting portion 22. Work intensively.

モータ側辺４０ａは、ポンプ本体側辺３２ｂよりも長く（つまり、ポンプ本体側辺３２ｂの方が短く）形成されていることから、上記「ねじり応力Ｔ」が連結部２４に作用すると、第１および第２連結部材５０ａ、５０ｂは、ポンプ本体取付部側端５０ａ１、５０ｂ１の方が、モータ取付部側端５０ａ２、５０ｂ２よりも大きくねじられる。同時に、当該「ねじり応力Ｔ」は、第１傾斜連結部材５２ａあるいは第２傾斜連結部材５２ｂのいずれか一方に対する縦幅方向への「曲げ応力」として作用するので、傾斜連結部材５２ａあるいは５２ｂのポンプ本体取付部２０側端５２ａ１、５２ｂ１は、ベース１０の縦幅方向に曲げられる。   Since the motor side 40a is formed longer than the pump body side 32b (that is, the pump body side 32b is shorter), the first torsional stress T acts on the connecting portion 24. The second connecting members 50a and 50b are twisted more at the pump body mounting portion side ends 50a1 and 50b1 than at the motor mounting portion side ends 50a2 and 50b2. At the same time, the “torsional stress T” acts as a “bending stress” in the longitudinal direction with respect to either the first inclined connecting member 52a or the second inclined connecting member 52b, and therefore the pump of the inclined connecting member 52a or 52b. The body attachment portion 20 side ends 52 a 1 and 52 b 1 are bent in the longitudinal width direction of the base 10.

これに対し（図６参照）、第１連結部材５０ａおよび第２連結部材５０ｂの縦幅は、モータ取付部２２側よりもポンプ本体取付部２０側の方が長く形成されているので、連結部材５０ａ、５０ｂ全体を軽量化しつつ、連結部材５０ａ、５０ｂにおけるモータ取付部２２側の断面二次モーメント（応力に対する変形しにくさを表す値であり、値が大きいほど変形しにくい）よりもポンプ本体取付部２０側の断面二次モーメントを大きくして上記「ねじり」に対応できるとともに連結部材５０ａ、５０ｂとポンプ本体側辺３２ｂとの連結部分への応力集中を回避することができ、加えて、第１傾斜連結部材５２ａおよび第２傾斜連結部材５２ｂは、上記「曲げ応力」が作用する縦幅が、横幅よりも長く形成されているので、横幅を短くして傾斜連結部材５２ａ、５２ｂ全体を軽量化しつつ、上記「曲げ応力」に耐えることのできる断面二次モーメントを確保することができる。なお、モータ１６の回転方向として、ポンプ本体１４の仕様等により、時計回りあるいは反時計回りが選択されるが、どちらを選択したとしても、一対の傾斜連結部材５２ａ、５２ｂのどちらかで「ねじり」に対応することができる。   On the other hand (see FIG. 6), the vertical width of the first connecting member 50a and the second connecting member 50b is longer on the pump body mounting portion 20 side than on the motor mounting portion 22 side. 50a, 50b While reducing the overall weight, the pump body than the moment of inertia of the cross section of the connecting member 50a, 50b on the motor mounting portion 22 side (a value representing the difficulty of deformation with respect to stress. It is possible to increase the cross-sectional secondary moment on the mounting portion 20 side to cope with the “torsion” and to avoid stress concentration on the connecting portion between the connecting members 50a, 50b and the pump body side 32b. The first inclined connecting member 52a and the second inclined connecting member 52b are formed so that the vertical width on which the “bending stress” acts is longer than the horizontal width. Member 52a, while reducing the weight of the entire 52 b, it is possible to secure a second moment that can withstand the "bending stress". As the rotation direction of the motor 16, either clockwise or counterclockwise is selected depending on the specifications of the pump body 14, and any one of them is selected by either the pair of inclined connecting members 52a and 52b. ".

このように、本発明によれば、連結部を構成する一対の連結部材および一対の傾斜連結部材の全体を軽量化しつつ、各部材を互いに連携させて「ねじり応力」に耐えられるようにしているので、限界まで軽量化しつつ、しかもベースに要求される機械的強度を満足することのできるポンプユニットのベースを供給することができる。   As described above, according to the present invention, the entire pair of connecting members and the pair of inclined connecting members constituting the connecting portion are reduced in weight, and the members are made to cooperate with each other so as to withstand “torsional stress”. Therefore, it is possible to supply the base of the pump unit that can satisfy the mechanical strength required for the base while reducing the weight to the limit.

以下、本発明を図示実施例に従い説明する。本発明に係るベース１０は、ポンプユニット１２を取り付けるためのものであり、ダイカストマシンＭ（もちろん、ダイカストマシンに限られず、他の油圧機械であってもよい。）の側面下方に固定されている。図１は、ベース１０にポンプユニット１２を取り付けた状態を示す正面図であり、図２は、ベース１０の平面図であり、図３は、図２におけるＡ−Ａ線断面図であり、図４は、図２におけるＢ−Ｂ線断面図である。また、図５は、図２における連通部（後述）およびその周辺を拡大した図である。   The present invention will be described below with reference to the illustrated embodiments. The base 10 according to the present invention is for attaching the pump unit 12 and is fixed below the side surface of the die casting machine M (of course, not limited to the die casting machine but may be other hydraulic machines). . 1 is a front view showing a state in which the pump unit 12 is attached to the base 10, FIG. 2 is a plan view of the base 10, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is an enlarged view of a communication portion (described later) and its periphery in FIG.

ベース１０に取り付けられるポンプユニット１２について簡単に説明すると、ポンプユニット１２は、大略、ポンプ本体１４と、ポンプ本体１４を駆動するためのモータ１６と、ポンプ本体１４の側面から突出する駆動軸１４ａおよび当該駆動軸１４ａに対向するモータ１６の側面から突出する出力軸１６ａを連結するためのカップリング１８とで構成されている。   Briefly describing the pump unit 12 attached to the base 10, the pump unit 12 is roughly composed of a pump main body 14, a motor 16 for driving the pump main body 14, a drive shaft 14 a protruding from the side surface of the pump main body 14, and It comprises a coupling 18 for connecting the output shaft 16a protruding from the side surface of the motor 16 facing the drive shaft 14a.

ベース１０は、ポンプ本体取付部２０と、モータ取付部２２と、連結部２４とで構成されている。   The base 10 includes a pump main body mounting portion 20, a motor mounting portion 22, and a connecting portion 24.

ポンプ本体取付部２０は、ポンプユニット１２のポンプ本体１４が取り付けられる平面視四角形状部分であり、ポンプ本体１４をボルト２６で固定するためのネジ穴２８が天面に設けられ、図２中において左右方向に延びる一対の横枠材３０ａ、３０ｂと、横枠材３０ａにおける長手方向の一方端（以下、「枠材」の一方端あるいは他方端は、「枠材」の長手方向を基準する。）と横枠材３０ｂの一方端とを連結する縦枠材３２ａと、横枠材３０ａの他方端と横枠材３０ｂの他方端とを連結する縦枠材３２ｂとを備えており、各枠材３０ａ、３０ｂ、３２ａ、３２ｂがそれぞれポンプ本体取付部２０を構成する一辺となる。以下では、モータ取付部２２に対向する辺（＝縦枠材３２ｂ）を「ポンプ本体側辺３２ｂ」ともいう。   The pump body mounting portion 20 is a quadrangular portion in plan view to which the pump body 14 of the pump unit 12 is mounted. A screw hole 28 for fixing the pump body 14 with a bolt 26 is provided on the top surface. A pair of horizontal frame members 30a, 30b extending in the left-right direction and one end in the longitudinal direction of the horizontal frame member 30a (hereinafter, one end or the other end of the “frame member” is based on the longitudinal direction of the “frame member”. ) And one end of the horizontal frame member 30b, and a vertical frame member 32b connecting the other end of the horizontal frame member 30a and the other end of the horizontal frame member 30b. Each of the materials 30a, 30b, 32a, and 32b constitutes one side that constitutes the pump body mounting portion 20. Hereinafter, the side (= vertical frame member 32b) facing the motor mounting portion 22 is also referred to as “pump main body side 32b”.

また、横枠材３０ａ、３０ｂおよび縦枠材３２ａ、３２ｂで囲まれた内側には、横枠材３０ａの一方端と横枠材３０ｂの他方端とを連結し、横枠材３０ａの他方端と横枠材３０ｂの一方端とを連結する一対の斜材３４ａ、３４ｂが、中央でクロスするＸ字状にて一体的に設けられている。   Further, on the inner side surrounded by the horizontal frame members 30a and 30b and the vertical frame members 32a and 32b, one end of the horizontal frame member 30a and the other end of the horizontal frame member 30b are connected, and the other end of the horizontal frame member 30a is connected. And a pair of diagonal members 34a, 34b that connect one end of the lateral frame member 30b are integrally provided in an X shape that crosses at the center.

モータ取付部２２は、平面視四角形状に形成された、モータ１６が取り付けられる部分であり、モータ１６の大きさに合わせて、ポンプ本体取付部２０よりも大きく形成されている。このモータ取付部２２は、モータ１６をボルト（図示せず）で固定するためのネジ穴３６が天面に設けられ、図中において左右方向に延びる、断面略コ字状の一対の横枠材３８ａ、３８ｂと、横枠材３８ａの一方端と横枠材３８ｂの一方端とを連結する縦枠材４０ａと、横枠材３８ａの他方端と横枠材３８ｂの他方端とを連結する縦枠材４０ｂとを備えており、各枠材３８ａ、３８ｂ、４０ａ、４０ｂがそれぞれモータ取付部２２を構成する一辺となる。以下では、ポンプ本体取付部２０に対向する辺（＝縦枠材４０ａ）をモータ側辺４０ａともいう。また、縦枠材４０ａは、上述したポンプ本体取付部２０を構成する辺の一つである縦枠材３２ｂよりも長く、かつ、縦枠材３２ｂに対向するように配設されている。   The motor attachment portion 22 is a portion that is formed in a square shape in plan view and to which the motor 16 is attached. The motor attachment portion 22 is formed larger than the pump body attachment portion 20 in accordance with the size of the motor 16. The motor mounting portion 22 has a pair of horizontal frame members having a substantially U-shaped cross section in which a screw hole 36 for fixing the motor 16 with a bolt (not shown) is provided on the top surface and extends in the left-right direction in the drawing. 38a, 38b, a vertical frame member 40a connecting one end of the horizontal frame member 38a and one end of the horizontal frame member 38b, and a vertical member connecting the other end of the horizontal frame member 38a and the other end of the horizontal frame member 38b. The frame material 40b is provided, and each frame material 38a, 38b, 40a, 40b is a side constituting the motor mounting portion 22, respectively. Hereinafter, the side (= vertical frame member 40a) facing the pump main body mounting portion 20 is also referred to as a motor side 40a. Further, the vertical frame member 40a is longer than the vertical frame member 32b which is one of the sides constituting the pump body mounting portion 20 described above, and is disposed so as to face the vertical frame member 32b.

また、横枠材３８ａ、３８ｂおよび縦枠材４０ａ、４０ｂで囲まれた内側には、横枠材３８ａの一方端と横枠材３８ｂの他方端とを連結し、横枠材３８ａの他方端と横枠材３８ｂの一方端とを連結する一対の斜材４２ａ、４２ｂが、中央でクロスするＸ字状にて一体的に設けられている。   In addition, on the inner side surrounded by the horizontal frame members 38a and 38b and the vertical frame members 40a and 40b, one end of the horizontal frame member 38a and the other end of the horizontal frame member 38b are connected, and the other end of the horizontal frame member 38a is connected. And a pair of diagonal members 42a and 42b that connect one end of the horizontal frame member 38b are integrally provided in an X shape that crosses at the center.

また、横枠材３８ａ、３８ｂの一方端および他方端における外側には、モータ取付部２２を据付ボルト５６でダイカストマシンＭに取り付けるための孔４４が設けられたブラケット４６がそれぞれ突設されている。   In addition, brackets 46 each provided with a hole 44 for mounting the motor mounting portion 22 to the die casting machine M with a mounting bolt 56 project from the outer sides of one end and the other end of the horizontal frame members 38a and 38b. .

さらに、横枠材３８ａ、３８ｂの一方端部および他方端部は上方に突出しており、その突出部分３８ａ１、３８ｂ１には、外側面から内側面に貫通するネジ孔４８が設けられている（図３参照）。これらネジ孔４８に対して外側から内側に向けて押しボルト（図示せず）がねじ込まれており、当該押しボルトのねじ込み量を調節することにより、モータ１６の取付位置を微調整することができるようになっている。   Further, one end and the other end of the horizontal frame members 38a and 38b protrude upward, and screw holes 48 penetrating from the outer surface to the inner surface are provided in the protruding portions 38a1 and 38b1 (see FIG. 3). A push bolt (not shown) is screwed into the screw holes 48 from the outside to the inside, and the mounting position of the motor 16 can be finely adjusted by adjusting the screwing amount of the push bolt. It is like that.

連結部２４は、ポンプ本体取付部２０およびモータ取付部２２を連結する部分であり、縦枠材３２ｂの一方端３２ｂ１（図５中の上側端）と、縦枠材４０ａの一方端４０ａ１（図５中の上側端）とを連結する第１連結部材５０ａ、縦枠材３２ｂの他方端３２ｂ２（図５中の下側端）と、縦枠材４０ａの他方端４０ａ２（図５中の下側端）とを連結する第２連結部材５０ｂ、縦枠材３２ｂの一方端３２ｂ１と、縦枠材４０ａの他方端４０ａ２とを連結する第１傾斜連結部材５２ａ、および縦枠材３２ｂの他方端３２ｂ２と、縦枠材４０ａの一方端４０ａ１とを連結する第２傾斜連結部材５２ｂを備えている。   The connecting portion 24 is a portion that connects the pump main body attaching portion 20 and the motor attaching portion 22, and includes one end 32b1 (upper end in FIG. 5) of the vertical frame member 32b and one end 40a1 (see FIG. 5) of the vertical frame member 40a. 5, the other end 32 b 2 (the lower end in FIG. 5) of the vertical frame member 32 b, and the other end 40 a 2 (the lower side in FIG. 5) of the vertical frame member 40 a. End), the first inclined connecting member 52a connecting the one end 32b1 of the vertical frame member 32b and the other end 40a2 of the vertical frame member 40a, and the other end 32b2 of the vertical frame member 32b. And a second inclined connecting member 52b that connects the one end 40a1 of the vertical frame member 40a.

また、第１連結部材５０ａの天面および第２連結部材５０ｂの天面には、それぞれ略三角形状の補強部５４が一体的に取り付けられており、連結部材５０ａ、５０ｂの縦幅は、モータ取付部２２側よりもポンプ本体取付部２０側の方が長く形成されている。   Further, substantially triangular reinforcing portions 54 are integrally attached to the top surface of the first connecting member 50a and the top surface of the second connecting member 50b, respectively, and the vertical width of the connecting members 50a and 50b is determined by the motor. The pump body attachment portion 20 side is formed longer than the attachment portion 22 side.

なお、本実施例では、連結部材５０ａ、５０ｂの縦幅は、連結部材５０ａ、５０ｂの中程ややモータ取付部２２よりの位置からポンプ本体取付部２０に向けて徐々に長くなるように設定されているが、もちろん、連結部材５０ａ、５０ｂのモータ取付部２２側端部からポンプ本体取付部２０に向けて徐々に長くなるように設定してもよく、また、ポンプ本体取付部２０側端部だけが長くなるように設定してもよい。   In this embodiment, the longitudinal width of the connecting members 50a and 50b is set so as to gradually increase from the middle of the connecting members 50a and 50b slightly from the position of the motor mounting portion 22 toward the pump body mounting portion 20. However, of course, the connecting members 50a and 50b may be set so as to gradually become longer from the motor mounting portion 22 side end portion toward the pump main body mounting portion 20, or the pump main body mounting portion 20 side end portion. You may set so that only becomes long.

次に、本実施例に係るポンプユニット１２のベース１０の作用効果について説明する。まず、ボルト２６を用いて、ベース１０のポンプ本体取付部２０にポンプユニット１２のポンプ本体１４を固定する。そして、ベース１０のモータ取付部２２にモータ１６を載置し、モータ取付部２２のネジ孔４８にねじ込まれた押しボルトのねじ込み量を調節して、モータ１６の出力軸１６ａの軸心とポンプ本体１４の駆動軸１４ａの軸心とを一致させた後、モータ１６を固定する。最後に、モータ１６の出力軸１６ａとポンプ本体１４の駆動軸１４ａとをカップリング１８で連結することにより、ポンプユニット１２のベース１０への取り付けが完了する。   Next, the effect of the base 10 of the pump unit 12 according to the present embodiment will be described. First, the pump body 14 of the pump unit 12 is fixed to the pump body mounting portion 20 of the base 10 using the bolts 26. Then, the motor 16 is placed on the motor mounting portion 22 of the base 10, and the screwing amount of the push bolt screwed into the screw hole 48 of the motor mounting portion 22 is adjusted, and the shaft center of the output shaft 16 a of the motor 16 and the pump are adjusted. After matching the axis of the drive shaft 14a of the main body 14, the motor 16 is fixed. Finally, the output shaft 16a of the motor 16 and the drive shaft 14a of the pump body 14 are connected by the coupling 18, whereby the mounting of the pump unit 12 to the base 10 is completed.

ポンプユニット１２が取り付けられたベース１０は、モータ取付部２２の横枠材３８ａ、３８ｂから突設されたブラケット４６の孔４４に据付ボルト５６を挿通してダイカストマシンＭに取り付けられる。   The base 10 to which the pump unit 12 is attached is attached to the die casting machine M by inserting installation bolts 56 through holes 44 of the bracket 46 projecting from the horizontal frame members 38 a and 38 b of the motor attachment portion 22.

ダイカストマシンＭを稼働させ、モータ１６に電力が供給されると、モータ１６の出力軸１６ａが回転し、カップリング１８を介してモータ１６からのトルク（回転力）がポンプ本体１４に伝達され、加圧された圧油がダイカストマシンの射出シリンダ等（図示せず）に供給される。   When the die casting machine M is operated and electric power is supplied to the motor 16, the output shaft 16 a of the motor 16 rotates, and torque (rotational force) from the motor 16 is transmitted to the pump body 14 through the coupling 18. The pressurized pressure oil is supplied to an injection cylinder or the like (not shown) of the die casting machine.

ポンプ本体１４が取り付けられたポンプ本体取付部２０、およびモータ１６が取り付けられたモータ取付部２２は、それぞれポンプ本体１４あるいはモータ１６と一体になり、大きな応力を加えても変形しない「剛体」と考えることができるので、ベース１０に作用する応力、例えば、何らかのトラブルによってポンプ本体１４の駆動軸１４ａがロック状態となったとき、モータ１６の出力軸１６ａから出力される大きなトルク（回転力）に起因して、ポンプ本体取付部２０をモータ取付部２２に対してモータ１６の回転方向にねじる「ねじり応力Ｔ」は、ポンプ本体取付部２０とモータ取付部２２とを連結する連結部２４に対して集中的に作用することになる。   The pump body attachment portion 20 to which the pump body 14 is attached and the motor attachment portion 22 to which the motor 16 is attached are integrated with the pump body 14 or the motor 16, respectively, and are “rigid bodies” that do not deform even when a large stress is applied. Since it can be considered, when the driving shaft 14a of the pump main body 14 is locked due to some trouble, for example, due to some trouble, the torque (rotational force) output from the output shaft 16a of the motor 16 is increased. As a result, the “torsional stress T” that twists the pump body mounting portion 20 with respect to the motor mounting portion 22 in the rotational direction of the motor 16 is applied to the connecting portion 24 that connects the pump body mounting portion 20 and the motor mounting portion 22. Work intensively.

モータ側辺４０ａは、ポンプ本体側辺３２ｂよりも長く（つまり、ポンプ本体側辺３２ｂの方が短く）形成されていることから、上記「ねじり応力Ｔ」が連結部２４に作用すると、第１および第２連結部材５０ａ、５０ｂは、ポンプ本体取付部側端５０ａ１、５０ｂ１の方が、モータ取付部側端５０ａ２、５０ｂ２よりも大きくねじられる。同時に、当該「ねじり応力Ｔ」は、第１傾斜連結部材５２ａあるいは第２傾斜連結部材５２ｂのいずれか一方に対する縦幅方向への「曲げ応力」として作用するので、傾斜連結部材５２ａあるいは５２ｂのポンプ本体取付部２０側端５２ａ１、５２ｂ１は、ベース１０の縦幅方向に曲げられる。   Since the motor side 40a is formed longer than the pump body side 32b (that is, the pump body side 32b is shorter), the first torsional stress T acts on the connecting portion 24. The second connecting members 50a and 50b are twisted more at the pump body mounting portion side ends 50a1 and 50b1 than at the motor mounting portion side ends 50a2 and 50b2. At the same time, the “torsional stress T” acts as a “bending stress” in the longitudinal direction with respect to either the first inclined connecting member 52a or the second inclined connecting member 52b, and therefore the pump of the inclined connecting member 52a or 52b. The body attachment portion 20 side ends 52 a 1 and 52 b 1 are bent in the longitudinal width direction of the base 10.

これに対し（図６参照）、第１連結部材５０ａおよび第２連結部材５０ｂの縦幅は、モータ取付部２２側よりもポンプ本体取付部２０側の方が長く形成されているので、連結部材５０ａ、５０ｂ全体を軽量化しつつ、連結部材５０ａ、５０ｂにおけるモータ取付部２２側の断面二次モーメント（応力に対する変形しにくさを表す値であり、値が大きいほど変形しにくい）よりもポンプ本体取付部２０側の断面二次モーメントを大きくして上記「ねじれ」に対応できるとともに連結部材５０ａ、５０ｂとポンプ本体側辺３２ｂとの連結部分への応力集中を回避することができ、加えて、第１傾斜連結部材５２ａおよび第２傾斜連結部材５２ｂは、上記「曲げ応力」が作用する縦幅が、横幅よりも長く形成されているので、横幅を短くして傾斜連結部材５２ａ、５２ｂ全体を軽量化しつつ、上記「曲げ応力」に耐えることのできる断面二次モーメントを確保することができる。なお、モータ１６の回転方向として、ポンプ本体１４の仕様等により、時計回りあるいは反時計回りが選択されるが、どちらを選択したとしても、一対の傾斜連結部材５２ａ、５２ｂのどちらかで「ねじり」に対応することができる。   On the other hand (see FIG. 6), the vertical width of the first connecting member 50a and the second connecting member 50b is longer on the pump body mounting portion 20 side than on the motor mounting portion 22 side. 50a, 50b While reducing the overall weight, the pump body than the moment of inertia of the cross section of the connecting member 50a, 50b on the motor mounting portion 22 side (a value representing the difficulty of deformation with respect to stress. The cross-sectional secondary moment on the mounting portion 20 side can be increased to cope with the “twist” and the stress concentration on the connecting portion between the connecting members 50a and 50b and the pump body side 32b can be avoided. The first inclined connecting member 52a and the second inclined connecting member 52b are formed so that the vertical width on which the “bending stress” acts is longer than the horizontal width. Member 52a, while reducing the weight of the entire 52 b, it is possible to secure a second moment that can withstand the "bending stress". As the rotation direction of the motor 16, either clockwise or counterclockwise is selected depending on the specifications of the pump body 14, and any one of them is selected by either the pair of inclined connecting members 52a and 52b. ".

このように、ベース１０によれば、連結部２４を構成する一対の連結部材５０ａ、５０ｂおよび一対の傾斜連結部材５２ａ、５２ｂの全体を軽量化しつつ、各部材を互いに連携させて「ねじり応力Ｔ」に耐えられるようにしているので、限界まで軽量化しつつ、しかもベースに要求される機械的強度を満足することのできるポンプユニットのベースを供給することができる。   As described above, according to the base 10, while reducing the weight of the pair of connecting members 50 a and 50 b and the pair of inclined connecting members 52 a and 52 b constituting the connecting portion 24, the respective members are linked with each other to obtain “torsional stress T Therefore, it is possible to supply the base of the pump unit that can satisfy the mechanical strength required for the base while reducing the weight to the limit.

本発明に係るベースにポンプユニットを取り付けた状態を示す正面図である。It is a front view which shows the state which attached the pump unit to the base which concerns on this invention. 本発明に係るベースの平面図である。It is a top view of the base concerning the present invention. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図２のＢ−Ｂ線断面図である。FIG. 3 is a sectional view taken along line B-B in FIG. 2. 図２における連結部およびその周辺を拡大した図である。It is the figure which expanded the connection part and its periphery in FIG. 通常状態（実線）とねじり応力が作用した状態（二点鎖線線）とを示す連結部の斜視図である。It is a perspective view of the connection part which shows a normal state (solid line) and the state (two-dot chain line) which the torsional stress acted on. 従来技術を示す正面図である。It is a front view which shows a prior art. 図７に示す従来技術に係るベースの平面図である。It is a top view of the base which concerns on the prior art shown in FIG. 図８のＣ−Ｃ線断面図である。It is CC sectional view taken on the line of FIG.

符号の説明Explanation of symbols

１０…ベース
１２…ポンプユニット
１４…ポンプ本体
１６…モータ
１８…カップリング
２０…ポンプ本体取付部
２２…モータ取付部
２４…連結部
２６…ボルト
２８…ネジ穴
３０ａ、３０ｂ…横枠材
３２ａ、３２ｂ…縦枠材（ポンプ本体側辺３２ｂ）
３４ａ、３４ｂ…斜材
３６…ネジ穴
３８ａ、３８ｂ…横枠材
４０ａ、４０ｂ…縦枠材（モータ側辺４０ａ）
４２ａ、４２ｂ…斜材
４４…孔
４６…ブラケット
４８…ネジ孔
５０ａ…第１連結部材
５０ｂ…第２連結部材
５２ａ…第１傾斜連結部材
５２ｂ…第２傾斜連結部材
５４…補強部
５６…据付ボルト DESCRIPTION OF SYMBOLS 10 ... Base 12 ... Pump unit 14 ... Pump main body 16 ... Motor 18 ... Coupling 20 ... Pump main body attaching part 22 ... Motor attaching part 24 ... Connection part 26 ... Bolt 28 ... Screw hole 30a, 30b ... Horizontal frame material 32a, 32b ... Vertical frame (pump body side 32b)
34a, 34b ... diagonal material 36 ... screw hole 38a, 38b ... horizontal frame material 40a, 40b ... vertical frame material (motor side 40a)
42a, 42b ... diagonal material 44 ... hole 46 ... bracket 48 ... screw hole 50a ... first connecting member 50b ... second connecting member 52a ... first inclined connecting member 52b ... second inclined connecting member 54 ... reinforcing part 56 ... installation bolt

Claims (1)

平面視四角形状に形成されており、ポンプユニットのポンプ本体が取り付けられるポンプ本体取付部と、
平面視四角形状に形成されるとともに、前記ポンプ本体取付部に並べて配設されており、前記ポンプユニットのモータが取り付けられるモータ取付部と、
前記ポンプ本体取付部および前記モータ取付部を連結する連結部とを備えており、
前記連結部は、
前記ポンプ本体取付部における、前記モータ取付部に対向するポンプ本体側辺の一方端と、前記モータ取付部における、前記ポンプ本体取付部に対向して前記ポンプ本体側辺よりも長いモータ側辺の一方端とを連結する第１連結部材、
前記ポンプ本体側辺の他方端と、前記モータ側辺の他方端とを連結する第２連結部材、
前記ポンプ本体側辺の一方端と、前記モータ側辺の他方端とを連結する第１傾斜連結部材、および
前記ポンプ本体側辺の他方端と、前記モータ側辺の一方端とを連結する第２傾斜連結部材を備えており、
前記第１連結部材および前記第２連結部材の縦幅は、前記モータ取付部側よりも前記ポンプ本体取付部側の方が長く形成されており、
前記第１傾斜連結部材および前記第２傾斜連結部材の縦幅は、横幅よりも長く形成されていることを特徴とするポンプユニットのベース。 It is formed in a square shape in plan view, and a pump body mounting portion to which the pump body of the pump unit is mounted,
A motor mounting portion that is formed in a square shape in plan view and is arranged side by side on the pump body mounting portion, to which a motor of the pump unit is mounted,
A connecting portion that connects the pump body mounting portion and the motor mounting portion;
The connecting portion is
One end of the side of the pump body facing the motor mounting part in the pump body mounting part, and a side of the motor side longer than the side of the pump body facing the pump body mounting part in the motor mounting part. A first connecting member for connecting one end;
A second connecting member that connects the other end of the pump body side and the other end of the motor side;
A first inclined connecting member that connects one end of the pump body side and the other end of the motor side; and a first inclined connection member that connects the other end of the pump body side and one end of the motor side. 2 inclined connecting members,
The longitudinal width of the first connecting member and the second connecting member is formed longer on the pump body mounting portion side than on the motor mounting portion side,
The base of the pump unit, wherein the first inclined connecting member and the second inclined connecting member are formed so that a vertical width is longer than a horizontal width.
JP2008271105A 2008-10-21 2008-10-21 Pump unit base Expired - Fee Related JP5209435B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017036114A (en) * 2015-08-10 2017-02-16 株式会社荏原製作所 Method for hoisting pump system and pump system
JP2021161895A (en) * 2020-03-31 2021-10-11 テラル株式会社 Rotary machine-base assembly, base, and suspension method

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JPS51111203U (en) * 1975-03-05 1976-09-08
JPS51137701U (en) * 1975-04-30 1976-11-06
JPS54112601U (en) * 1978-01-27 1979-08-08
JPS5515443U (en) * 1978-07-19 1980-01-31
JPS58176342A (en) * 1982-04-09 1983-10-15 株式会社奥村組 Construction of building
JPS5920093U (en) * 1982-07-29 1984-02-07 株式会社荏原製作所 pump base
JPH0642501A (en) * 1992-07-22 1994-02-15 Daikin Ind Ltd Hydraulic unit
JPH09192577A (en) * 1995-10-30 1997-07-29 Nordson Corp Molten thermoplastic material feeding apparatus having removable driving system
JPH10318159A (en) * 1997-05-20 1998-12-02 Atlas Copco Airpower Nv Coupling unit for compressor unit

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Publication number Priority date Publication date Assignee Title
JPS51111203U (en) * 1975-03-05 1976-09-08
JPS51137701U (en) * 1975-04-30 1976-11-06
JPS54112601U (en) * 1978-01-27 1979-08-08
JPS5515443U (en) * 1978-07-19 1980-01-31
JPS58176342A (en) * 1982-04-09 1983-10-15 株式会社奥村組 Construction of building
JPS5920093U (en) * 1982-07-29 1984-02-07 株式会社荏原製作所 pump base
JPH0642501A (en) * 1992-07-22 1994-02-15 Daikin Ind Ltd Hydraulic unit
JPH09192577A (en) * 1995-10-30 1997-07-29 Nordson Corp Molten thermoplastic material feeding apparatus having removable driving system
JPH10318159A (en) * 1997-05-20 1998-12-02 Atlas Copco Airpower Nv Coupling unit for compressor unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017036114A (en) * 2015-08-10 2017-02-16 株式会社荏原製作所 Method for hoisting pump system and pump system
JP2021161895A (en) * 2020-03-31 2021-10-11 テラル株式会社 Rotary machine-base assembly, base, and suspension method

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