JP4673763B2 - Pump device - Google Patents

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JP4673763B2
JP4673763B2 JP2006040603A JP2006040603A JP4673763B2 JP 4673763 B2 JP4673763 B2 JP 4673763B2 JP 2006040603 A JP2006040603 A JP 2006040603A JP 2006040603 A JP2006040603 A JP 2006040603A JP 4673763 B2 JP4673763 B2 JP 4673763B2
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impeller
drive motor
coupling
pump
plate portion
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JP2007218193A (en
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文彦 山田
伸雄 竹井
哲也 小林
洋介 吉田
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Orion Machinery Co Ltd
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Orion Machinery Co Ltd
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Description

本発明は、真空ポンプやブロア等のポンプと、その駆動手段とから構成されるポンプ装置に関する。   The present invention relates to a pump device including a pump such as a vacuum pump and a blower, and a driving unit thereof.

図８に示すような、真空ポンプ１１０と電動モータ１２０の回転軸１１１、１２１がカップリング１４０によって直列に連結された回転軸の直列連結部１１５と、真空ポンプ１１０と電動モータ１２０の本体１１２、１２２が直列に配置されるようにその両者の間に連結され且つ直列連結部１１５を内蔵するように筒状に形成された筒状ジョイント１３０と、直列連結部１１５に回転軸１１１、１２１の軸心と同軸に共に回転すべく固定されて設けられた遠心ファン型の羽根車１５０とを備える低運転音型の真空ポンプ装置が、本出願人によって提案されている。   As shown in FIG. 8, the rotation shafts 111 and 121 of the vacuum pump 110 and the electric motor 120 are connected in series by the coupling 140, and the main shaft 112 of the vacuum pump 110 and the electric motor 120. 122 is connected in series so as to be arranged in series, and the cylindrical joint 130 is formed in a cylindrical shape so as to incorporate the series connection part 115, and the shafts of the rotary shafts 111 and 121 are connected to the series connection part 115. The present applicant has proposed a low operating sound type vacuum pump device including a centrifugal fan type impeller 150 fixed to rotate together coaxially with a core.

この真空ポンプ装置では、筒状ジョイント１３０の内周壁に、空気の流れを絞る絞り部１３２が形成されている。この絞り部１３２は、羽根車１５０の外径よりも小さい内径で、筒状ジョイント１３０の軸心方向の中途部に設けられている。この絞り部１３２のため、この筒状ジョイント１３０は、単純な型では製造できず、中子を必要とする鋳物型で成形されている。
また、図８に示した筒状ジョイント１３０では、その絞り部１３２が、電動モータ１２０の端面１２３から、冷却用の空気を取り入れるための空間（吸入口１３３）を確保するための間隔をおいて設けられている。 In this vacuum pump device, a throttle portion 132 that restricts the flow of air is formed on the inner peripheral wall of the cylindrical joint 130. The throttle portion 132 has an inner diameter smaller than the outer diameter of the impeller 150 and is provided in the middle portion in the axial direction of the cylindrical joint 130. Due to the narrowed portion 132, the cylindrical joint 130 cannot be manufactured by a simple mold, but is formed by a casting mold that requires a core.
Further, in the cylindrical joint 130 shown in FIG. 8, the throttle portion 132 is spaced from the end surface 123 of the electric motor 120 to ensure a space (intake port 133) for taking in cooling air. Is provided.

以上の構成によって図８に矢印で示すように、冷却用の空気は、吸引口１３３から吸入され、絞り部１３２によって羽根車１５０の中心側方向へ案内される。そして、羽根車１５０の回転によって発生された空気流が、真空ポンプ１１０の周囲を通るように、筒状ジョイント１３０から排出される。これによって、真空ポンプ１１０を冷却することができる。
また、前記の筒状ジョイント１３０を用いることで、真空ポンプ装置の低運転音化ができると共に、カップリング１４０によって連結する際に芯出しが容易にできるなどの利点がある。 With the above configuration, as indicated by an arrow in FIG. 8, the cooling air is sucked from the suction port 133 and guided toward the center side of the impeller 150 by the throttle portion 132. Then, the air flow generated by the rotation of the impeller 150 is discharged from the cylindrical joint 130 so as to pass around the vacuum pump 110. Thereby, the vacuum pump 110 can be cooled.
Further, the use of the cylindrical joint 130 has advantages such that the operation noise of the vacuum pump device can be reduced and that centering can be easily performed when the coupling is connected by the coupling 140.

また、真空ポンプの周囲と回転軸の直列連結部とを防音壁で囲んだ真空発生装置の防音機構が、本出願人によって開示されている（特許文献１参照）。この真空発生装置においても、真空ポンプを冷却するために遠心ファン型の羽根車が装着されており、その羽根車の吸気側で空気の流れを案内する絞り部が、防音壁側に設けられている。
特開２００１−１１５９６１号公報（第１頁、第１図） Further, a soundproofing mechanism of a vacuum generator in which the periphery of the vacuum pump and the serial connection portion of the rotating shaft are surrounded by a soundproofing wall has been disclosed by the present applicant (see Patent Document 1). Also in this vacuum generator, a centrifugal fan type impeller is mounted to cool the vacuum pump, and a throttle part for guiding the air flow on the intake side of the impeller is provided on the soundproof wall side. Yes.
JP 2001-155961 A (first page, FIG. 1)

ポンプ装置に関して解決しようとする問題点は、遠心ファン型羽根車の吸気側における空気の流れを案内する絞り部が、筒状ジョイント側或いは防音壁側に設けられて構造が複雑化するため、製造コストを低減できない点にある。
そこで本発明の目的は、遠心ファン型羽根車の吸気側における空気の流れを案内する部分の構造が合理化でき、製造コストを低減できるポンプ装置を提供することにある。 The problem to be solved with respect to the pump device is that the throttle part for guiding the air flow on the intake side of the centrifugal fan type impeller is provided on the cylindrical joint side or the soundproof wall side, and the structure becomes complicated. The cost cannot be reduced.
SUMMARY OF THE INVENTION An object of the present invention is to provide a pump device that can rationalize the structure of a portion that guides the flow of air on the intake side of a centrifugal fan impeller and can reduce manufacturing costs.

本発明は、上記目的を達成するために次の構成を備える。
本発明にかかるポンプ装置の一形態によれば、ポンプの回転軸と駆動モータの回転軸がカップリングによって直列に連結された回転軸の直列連結部と、前記ポンプの本体と前記駆動モータの本体が直列に配置されるように該両者の間に連結され且つ前記直列連結部を内蔵するように筒状に形成された筒状ジョイントと、前記直列連結部に前記回転軸の軸心と同軸に共に回転すべく固定されて設けられた遠心ファン型の羽根車とを備えるポンプ装置であって、前記羽根車が、前記駆動モータの端面近傍に配置されて前記回転軸の軸心と実質的に直交する方向へ空気の流れを案内する心板部と、該心板部の前記駆動モータ側とは反対の板面に設けられた複数の羽根と、該複数の羽根の前記ポンプ側で且つ外周部にリング状に設けられて空気の流れを絞るように案内するリング状板部とを備えることを特徴とする。 The present invention has the following configuration in order to achieve the above object.
According to one aspect of the pump device of the present invention, a serial connection portion of the rotary shaft in which the rotary shaft of the pump and the rotary shaft of the drive motor are connected in series by a coupling, the main body of the pump, and the main body of the drive motor Are connected between the two so as to be arranged in series and are formed in a cylindrical shape so as to incorporate the series connection part, and the series connection part is coaxial with the axis of the rotary shaft. A centrifugal fan type impeller provided fixed to rotate together, wherein the impeller is disposed in the vicinity of an end surface of the drive motor and substantially the shaft center of the rotating shaft. A core plate that guides the flow of air in an orthogonal direction, a plurality of blades provided on a plate surface opposite to the drive motor side of the core plate, and the outer periphery of the plurality of blades on the pump side The air flow is provided in a ring shape Characterized in that it comprises a ring-like plate portion for guiding to squeeze.

また、本発明にかかるポンプ装置の一形態によれば、前記羽根車において、前記心板部が実質的に円板状に形成され、該心板部の外径よりも前記リング状板部の内径が大きく形成されていることを特徴とすることができる。
また、本発明にかかるポンプ装置の一形態によれば、前記羽根車を前記カップリングの駆動モータ側の端面にネジによって固定すべく、該カップリングの端面に雌ネジ部と該雌ネジ部に同心の座グリ部が設けられ、前記心板部にネジを通す貫通孔と該貫通孔に同心で前記座グリ部に嵌って位置決めをする凸部が設けられていることを特徴とすることができる。 Moreover, according to one form of the pump apparatus concerning this invention, in the said impeller, the said core plate part is formed in a substantially disk shape, and the said ring-shaped plate part is more than the outer diameter of this core plate part. The inner diameter may be large.
Further, according to one aspect of the pump device according to the present invention, in order to fix the impeller to the end surface of the coupling on the drive motor side with a screw, a female screw portion and a female screw portion are provided on the end surface of the coupling. A concentric counterbore part is provided, and a through-hole through which a screw is passed through the core plate part and a convex part that is concentrically fitted and positioned in the counterbore part are provided in the through-hole. it can.

本発明にかかるポンプ装置によれば、遠心ファン型羽根車の吸気側における空気の流れを案内する部分の構造が合理化でき、製造コストを低減できるという特別有利な効果を奏する。   According to the pump device of the present invention, the structure of the portion for guiding the air flow on the intake side of the centrifugal fan type impeller can be rationalized, and there is a particularly advantageous effect that the manufacturing cost can be reduced.

以下、本発明にかかるポンプ装置について最良の形態例を添付図面（図１〜７）に基づいて詳細に説明する。
図１は、本発明のポンプ装置の一形態例を示す一部断面を含む側面図である。また、図２は、図１のポンプ装置に用いられた遠心ファン型の羽根車を示す斜視図である。図３は、図２の羽根車を裏面側から見た斜視図である。
本形態例のポンプ装置は、ポンプがベーン型の真空ポンプ１０であり、駆動手段（駆動モータ）が電動モータ２０からなる真空ポンプ装置になっている。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a best mode example of a pump device according to the present invention will be described in detail based on the attached drawings (FIGS. 1 to 7).
FIG. 1 is a side view including a partial cross section showing an embodiment of the pump device of the present invention. FIG. 2 is a perspective view showing a centrifugal fan type impeller used in the pump device of FIG. FIG. 3 is a perspective view of the impeller of FIG. 2 viewed from the back side.
The pump device of this embodiment is a vacuum pump device in which the pump is a vane type vacuum pump 10 and the driving means (driving motor) is an electric motor 20.

この真空ポンプ装置は、真空ポンプ１０の回転軸１１と電動モータ２０の回転軸２１がカップリング４０によって直列に連結された回転軸の直列連結部１５と、真空ポンプの本体１２と電動モータの本体２２が直列に配置されるようにその両者１２、２２の間に連結され且つ直列連結部１５を内蔵するように筒状に形成された筒状ジョイント３０と、直列連結部１５に回転軸１１、２１の軸心と同軸に共に回転すべく固定されて設けられた遠心ファン型の羽根車５０とを備える。   This vacuum pump apparatus includes a rotary shaft series connection portion 15 in which a rotary shaft 11 of a vacuum pump 10 and a rotary shaft 21 of an electric motor 20 are connected in series by a coupling 40, a main body 12 of a vacuum pump, and a main body of an electric motor. 22 is connected in series between the two 12 and 22 and the cylindrical joint 30 is formed in a cylindrical shape so as to incorporate the serial connection portion 15, and the rotary shaft 11 is connected to the serial connection portion 15. The centrifugal fan type impeller 50 is provided so as to be rotated coaxially with the shaft center 21.

筒状ジョイント３０は、鋳造によって剛性の高い部材として形成されている。この筒状ジョイント３０を介することで、真空ポンプの本体１２と電動モータの本体２２とが、高い剛性を備える状態で直に連結されて固定されている。
また、筒状ジョイント３０は、回転軸の直列連結部１５を内包すると共に、真空ポンプ１０の一端面を覆う形態となっている。このため、この筒状ジョイント３０によれば、真空ポンプ装置の低運転音化を図ることができる。
さらに、筒状ジョイント３０によって直に連結することから、組み立ての寸法位置精度を高め易く、カップリング４０によって真空ポンプ１０の回転軸１１と電動モータ２０の回転軸２１を連結する際に、芯出しが容易にできる利点もある。 The cylindrical joint 30 is formed as a highly rigid member by casting. Through this cylindrical joint 30, the main body 12 of the vacuum pump and the main body 22 of the electric motor are directly connected and fixed in a state having high rigidity.
In addition, the cylindrical joint 30 is configured to cover the one end surface of the vacuum pump 10 while containing the serial connection portion 15 of the rotating shaft. For this reason, according to this cylindrical joint 30, it is possible to reduce the operating noise of the vacuum pump device.
Furthermore, since the direct connection is made by the cylindrical joint 30, it is easy to improve the dimensional position accuracy of the assembly, and when the rotary shaft 11 of the vacuum pump 10 and the rotary shaft 21 of the electric motor 20 are connected by the coupling 40, centering is performed. There is also an advantage that can be made easily.

羽根車５０は、電動モータ２０の端面２３近傍に配置されて回転軸１１、２１の軸心と実質的に直交する方向へ空気の流れを案内する心板部５１と、その心板部５１の電動モータ２０側とは反対の板面に設けられた複数の羽根５２と、その複数の羽根５２の真空ポンプ１０側で且つ外周部にリング状に設けられて空気の流れを絞るように案内するリング状板部５３とを備える。なお、５８は回転軸２１を通す孔である。   The impeller 50 is disposed in the vicinity of the end face 23 of the electric motor 20 and guides the flow of air in a direction substantially perpendicular to the axis of the rotary shafts 11 and 21, and the core plate 51 A plurality of blades 52 provided on a plate surface opposite to the electric motor 20 side, and provided on the vacuum pump 10 side of the plurality of blades 52 in a ring shape on the outer peripheral portion to guide the air flow. And a ring-shaped plate portion 53. Reference numeral 58 denotes a hole through which the rotary shaft 21 passes.

以上のように形成された羽根車５０によれば、遠心ファンの原理で冷却用の空気流を好適に発生させることができ、筒状ジョイント３０側に空気の流れを狭める絞り部を設けなくてよい。従って、筒状ジョイント３０は、図１に明らかなように簡易な鋳造型で成形できる形態となっている。つまり、内壁面に突起する部分がなく、成形型の型を割る方向が筒状ジョイント３０の軸心方向の一方向でよい。このため、ダイキャストによる成形が可能となり、製造コストを低減できる。   According to the impeller 50 formed as described above, an air flow for cooling can be suitably generated by the principle of a centrifugal fan, and a throttle portion that narrows the air flow is not provided on the cylindrical joint 30 side. Good. Therefore, the cylindrical joint 30 has a form that can be molded with a simple casting mold as is apparent from FIG. That is, there is no projecting portion on the inner wall surface, and the direction in which the mold of the mold is broken may be one direction in the axial direction of the cylindrical joint 30. For this reason, molding by die-casting becomes possible, and the manufacturing cost can be reduced.

そして、この羽根車５０においては、図２及び図３に示すように心板部５１が実質的に円板状に形成され、その心板部５１の外径よりもリング状板部５３の内径が大きく形成されている。また、各羽根５２の空気の案内面は、羽根車５０の軸心と平行な面になっている。従って、この羽根車５０は、簡易な金型で成形できる形態となっている。つまり、成形型の型を割る方向が羽根車５０の軸心方向の一方向でよいため、射出成形機による樹脂成形が可能となり、製造コストを低減できる。   In the impeller 50, as shown in FIGS. 2 and 3, the core plate portion 51 is substantially formed in a disc shape, and the inner diameter of the ring-shaped plate portion 53 is larger than the outer diameter of the core plate portion 51. Is formed large. The air guide surfaces of the blades 52 are parallel to the axis of the impeller 50. Therefore, the impeller 50 has a form that can be molded with a simple mold. That is, since the direction in which the mold of the mold is broken may be one direction in the axial direction of the impeller 50, resin molding by an injection molding machine is possible, and manufacturing costs can be reduced.

以上の構成による真空ポンプ装置によれば、図１に矢印で示すように、冷却用の空気（外気）が、真空ポンプ１０の周囲を通って筒状ジョイント３０の内部へ導入され、リング状板部５３に案内されて羽根車５０の中心側方向へ案内される。そして、羽根車５０によって吸引され、回転する羽根車５０の遠心力によって生ずる空気流が心板部５１と電動モータ２０の端面２３によって案内され、筒状ジョイント３０に設けられた排気口３５を通って排出される。排気口３５は、筒状ジョイント３０の側壁であって、羽根車５０が配置された位置に対応して設けられ、回転軸１１、２１の軸心に直交する径方向へ空気が流れ出るように開口している。
これによれば、遠心ファンの原理によって、風切り音が軸流ファンに比べて小さく低騒音で且つ必要な静圧を生じさせて装置を冷却するための風量を得ることができる。 According to the vacuum pump device having the above configuration, as indicated by an arrow in FIG. 1, cooling air (outside air) is introduced into the cylindrical joint 30 through the periphery of the vacuum pump 10, and the ring plate Guided by the portion 53 and guided toward the center side of the impeller 50. The air flow sucked by the impeller 50 and generated by the centrifugal force of the rotating impeller 50 is guided by the core plate portion 51 and the end face 23 of the electric motor 20, and passes through the exhaust port 35 provided in the cylindrical joint 30. Discharged. The exhaust port 35 is a side wall of the cylindrical joint 30 and is provided corresponding to a position where the impeller 50 is disposed, and is opened so that air flows out in a radial direction perpendicular to the axis of the rotary shafts 11 and 21. is doing.
According to this, according to the principle of the centrifugal fan, the wind noise is smaller than that of the axial fan, the noise is low, and the necessary static pressure is generated to obtain the air volume for cooling the apparatus.

次に、図１〜図７に基づいて、羽根車５０を前述した直列連結部１５に固定する構造について詳細に説明する。図４は、羽根車５０をカップリング４０に複数（本形態例では３本）のボルト４５によって固定した状態を示す断面図であり、図５は図４のＡ矢視図である。また、図６はカップリング４０の断面図であり、図７は図６のＢ矢視図である。
図１に示すように、羽根車５０は、カップリング４０の電動モータ２０側の端面４１にネジ（ボルト４５）によって固定される（図４及び図５参照）。 Next, based on FIGS. 1-7, the structure which fixes the impeller 50 to the serial connection part 15 mentioned above is demonstrated in detail. FIG. 4 is a cross-sectional view showing a state in which the impeller 50 is fixed to the coupling 40 with a plurality of (three in this embodiment) bolts 45, and FIG. 5 is a view taken in the direction of arrow A in FIG. 6 is a cross-sectional view of the coupling 40, and FIG. 7 is a view taken in the direction of arrow B in FIG.
As shown in FIG. 1, the impeller 50 is fixed to the end surface 41 of the coupling 40 on the electric motor 20 side by screws (bolts 45) (see FIGS. 4 and 5).

カップリング４０の端面４１には、図６及び図７に示すように雌ネジ部４２とその雌ネジ部４２に同心の座グリ部４３が複数設けられている。なお、４４は連結用の突起部であり、これによってカップリング４０、４０ａ同士が連結され、真空ポンプ１０の回転軸１１と電動モータ２０の回転軸２１が連結される。４６はネジ孔であって、４７はキー溝であり、カップリングを回転軸２１に連結するために用いられる。また、４８は回転軸２１を通す孔である。   As shown in FIGS. 6 and 7, the end surface 41 of the coupling 40 is provided with a female screw portion 42 and a plurality of countersunk portions 43 concentric with the female screw portion 42. Reference numeral 44 denotes a connecting projection, which connects the couplings 40 and 40a, and connects the rotary shaft 11 of the vacuum pump 10 and the rotary shaft 21 of the electric motor 20. Reference numeral 46 denotes a screw hole, and reference numeral 47 denotes a key groove, which is used to connect the coupling to the rotary shaft 21. Reference numeral 48 denotes a hole through which the rotary shaft 21 passes.

また、羽根車５０の心板部５１には、図２及び図３に示すようにボルト４５を通す貫通孔５４とその貫通孔５４に同心でカップリング４０の座グリ部４３に嵌って位置決めをする凸部５５が複数設けられている。なお、本形態例の凸部５５は、ドーナツ形の周縁状に成形されているが、これに限定されることはなく、座グリ部４３と嵌りあって位置決めが可能なものであればよい。   2 and 3, the core plate 51 of the impeller 50 is fitted with the through hole 54 through which the bolt 45 passes and the counterbore 43 of the coupling 40 concentrically with the through hole 54 for positioning. A plurality of convex portions 55 are provided. In addition, although the convex part 55 of this form example is shape | molded by the donut-shaped periphery shape, it is not limited to this, What is necessary is just to be able to position by fitting with the spot facing part 43.

以上の羽根車５０を装着するための構成によれば、他に特別な係合構造を設ける必要なく、容易に形成できる。特に座グリ部４３の成形工程は、雌ネジ部４２を設ける際の加工を若干延長するだけの工程で容易に行うことができる。また、心板部５１の凸部５５を成形する金型の製造も容易であり、製造コストを低減できる。
さらに、凸部５５が、ボルト４５を通す貫通孔５４と同心に設けられており、装着の際にボルト４５によって締め付けられるため、座グリ部４３へ確実に嵌った状態で確実に固定される利点もある。 According to the configuration for mounting the impeller 50 described above, it can be easily formed without the need for providing any other special engagement structure. In particular, the step of forming the spot facing portion 43 can be easily performed by a process of slightly extending the processing when the female screw portion 42 is provided. Moreover, it is easy to manufacture a mold for forming the convex portion 55 of the core plate portion 51, and the manufacturing cost can be reduced.
Further, the convex portion 55 is provided concentrically with the through-hole 54 through which the bolt 45 is passed, and is tightened by the bolt 45 at the time of mounting, so that it is securely fixed in a state of being securely fitted to the spot facing portion 43. There is also.

以上、本発明につき好適な形態例を挙げて種々説明してきたが、本発明はこの形態例に限定されるものではなく、発明の精神を逸脱しない範囲内で多くの改変を施し得るのは勿論のことである。   As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That's it.

本発明に係るポンプ装置の一形態例を示す一部断面を含む側面図である。It is a side view including the partial cross section which shows one example of the pump apparatus which concerns on this invention. 図１のポンプ装置に用いられた遠心ファン型の羽根車を示す斜視図である。It is a perspective view which shows the centrifugal fan type impeller used for the pump apparatus of FIG. 図２の羽根車を裏面側から見た斜視図である。It is the perspective view which looked at the impeller of FIG. 2 from the back surface side. 羽根車をカップリングに固定した一形態例を示す断面図である。It is sectional drawing which shows the example of 1 form which fixed the impeller to the coupling. 図４のＡ矢視図である。It is A arrow directional view of FIG. カップリングの一形態例を示す断面図である。It is sectional drawing which shows one example of a coupling. 図６のＢ矢視図である。It is a B arrow view of FIG. 比較技術を示す一部断面を含む側面図である。It is a side view including the partial cross section which shows a comparison technique.

符号の説明Explanation of symbols

１０ 真空ポンプ
１１ 回転軸
１２ 本体
１５ 直列連結部
２０ 電動モータ
２１ 回転軸
２２ 本体
２３ 端面
３０ 筒状ジョイント
４０ カップリング
４１ 端面
４２ 雌ネジ部
４３ 座グリ部
４５ ボルト
５０ 羽根車
５１ 心板部
５２ 羽根
５３ リング状板部
５４ 貫通孔
５５ 凸部 DESCRIPTION OF SYMBOLS 10 Vacuum pump 11 Rotating shaft 12 Main body 15 Serial connection part 20 Electric motor 21 Rotating shaft 22 Main body 23 End surface 30 Cylindrical joint 40 Coupling 41 End surface 42 Female thread part 43 Counterbore part 45 Bolt 50 Impeller 51 Core plate part 52 Blade 53 Ring-shaped plate part 54 Through-hole 55 Convex part

Claims (2)

ポンプの回転軸と駆動モータの回転軸がカップリングによって直列に連結された回転軸の直列連結部と、前記ポンプの本体と前記駆動モータの本体が直列に配置されるように該両者の間に連結され且つ前記直列連結部を内蔵するように筒状に形成された筒状ジョイントと、前記直列連結部に前記回転軸の軸心と同軸に共に回転すべく固定されて設けられた遠心ファン型の羽根車とを備えるポンプ装置であって、
前記羽根車が、前記駆動モータの端面近傍に配置されて前記回転軸の軸心と実質的に直交する方向へ空気の流れを案内する心板部と、該心板部の前記駆動モータ側とは反対の板面に設けられた複数の羽根と、該複数の羽根の前記ポンプ側で且つ外周部にリング状に設けられて空気の流れを絞るように案内するリング状板部とを備え、前記羽根車を前記カップリングの駆動モータ側の端面にネジによって固定すべく、該カップリングの端面に雌ネジ部と該雌ネジ部に同心の座グリ部が設けられ、前記心板部にネジを通す貫通孔と該貫通孔に同心で前記座グリ部に嵌って位置決めをする凸部が設けられていることを特徴とするポンプ装置。 A rotary shaft connecting portion in which the rotary shaft of the pump and the rotary shaft of the drive motor are connected in series by a coupling, and the pump main body and the drive motor main body are arranged in series between the two. A cylindrical joint that is connected and has a cylindrical shape so as to incorporate the series connection portion, and a centrifugal fan type that is fixed to the series connection portion so as to rotate coaxially with the axis of the rotating shaft. A pump device comprising:
The impeller is disposed in the vicinity of the end surface of the drive motor and guides the flow of air in a direction substantially orthogonal to the axis of the rotation shaft, and the drive motor side of the core plate portion; Is provided with a plurality of blades provided on the opposite plate surface, and a ring-shaped plate portion that is provided in a ring shape on the pump side and on the outer peripheral portion of the plurality of blades and guides the air flow . In order to fix the impeller to the end surface on the drive motor side of the coupling with a screw, a female screw portion is provided on the end surface of the coupling and a conical countersunk portion is provided on the female screw portion, and a screw is provided on the core plate portion. A pump device characterized in that a through-hole through which is passed, and a convex portion that is concentrically fitted to the through-hole and fits into the spot facing portion to be positioned are provided . 前記羽根車において、前記心板部が実質的に円板状に形成され、該心板部の外径よりも前記リング状板部の内径が大きく形成されていることを特徴とする請求項１記載のポンプ装置。   2. The impeller according to claim 1, wherein the core plate portion is formed in a substantially disk shape, and the inner diameter of the ring-shaped plate portion is larger than the outer diameter of the core plate portion. The pump device described.
JP2006040603A 2006-02-17 2006-02-17 Pump device Active JP4673763B2 (en)

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JP5120750B2 (en) * 2007-12-26 2013-01-16 オリオン機械株式会社 Cooling structure of rotary pump
CN105889077B (en) * 2014-11-27 2018-03-23 镇江融峰机械有限公司 Vacuum-pressure composite air pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04231698A (en) * 1990-05-29 1992-08-20 Leybold Ag Low noise type vacuum pump
JP2001115961A (en) * 1999-10-18 2001-04-27 Orion Mach Co Ltd Sound insulating mechanism for vacuum developing device
JP2002357196A (en) * 2001-05-30 2002-12-13 Matsushita Seiko Co Ltd Centrifugal fan
JP2004027902A (en) * 2002-06-24 2004-01-29 Orion Mach Co Ltd Cover of rotation vane pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04231698A (en) * 1990-05-29 1992-08-20 Leybold Ag Low noise type vacuum pump
JP2001115961A (en) * 1999-10-18 2001-04-27 Orion Mach Co Ltd Sound insulating mechanism for vacuum developing device
JP2002357196A (en) * 2001-05-30 2002-12-13 Matsushita Seiko Co Ltd Centrifugal fan
JP2004027902A (en) * 2002-06-24 2004-01-29 Orion Mach Co Ltd Cover of rotation vane pump

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