JP5852400B2 - Pump-integrated electric motor device - Google Patents

Description

  The present invention relates to a pump-integrated electric motor apparatus in which a pump is directly connected to an electric motor.

  This type of pump-integrated electric motor device fixes an electric motor and a pump via a coupling plate, and the coupling plate fixes the electric motor with a bolt on the electric motor mounting side, and fixes the pump on the pump mounting side with a bolt. And the pump are integrated. And it is made to fix to a to-be-attached member with the attachment leg formed in the frame of the electric motor.

Japanese Patent Laid-Open No. 10-14169

  However, in such a conventional pump-integrated electric motor, since the mounting legs formed on the frame of the electric motor are located below the electric motor, the pump is large or a valve or the like is mounted on the pump. In this case, another support member for supporting the pump has to be required, which increases the number of parts and complicates the configuration.

  An object of the present invention is to provide a pump-integrated electric motor device that can support a motor and a pump with mounting legs, suppress an increase in the number of parts without using another support member that supports the pump, and can simplify the configuration. It is to provide.

In order to achieve this problem, the present invention has taken the following measures. That is,
An electric motor that exposes a rotatable output shaft to one end in the axial direction, a pump that sucks and discharges fluid by rotating the input shaft exposed to one end in the axial direction, and an electric motor and a pump that rotationally drives the input shaft by the output shaft And a mounting leg fixed to the mounted member. The mounting leg is detachably attached to the bracket member, and has at least two legs extending in a plane with a gap therebetween. The pump-integrated electric motor apparatus is characterized in that one end side of each leg portion is located below the electric motor and the other end side opposite to the one end side is located below the pump.

  As described above in detail, according to the first aspect of the present invention, since the mounting leg fixed to the mounted member is located below the motor and the pump, the motor and the pump can be supported by the mounting leg. Thus, another support member for supporting the pump is not required, and an increase in the number of parts can be suppressed, thereby simplifying the configuration.

Further, preparative Tsukeashi has the bracket member, for thereby positioning the one end side to the lower side of the electric motor, are located the other end facing the one end side to the lower side of the pump, the motor mounting leg with the bracket member and Since it can be removed from the pump, the fixing by the mounting leg can be easily changed to other fixing means. Furthermore, since the mounting leg is detachably attached to the bracket member, the mounting leg can be removed without removing the bracket member from the electric motor and the pump, so that the fixing by the mounting leg can be changed more easily.

It is the front view which showed one Embodiment of this invention and showed the principal part of the pump integrated motor in the cross section. The bracket member used for one Embodiment is shown, (a) is a right view on the side which attaches a pump main body, (b) is a left view on the side which attaches the frame of an electric motor. The attachment leg used for one Embodiment is shown, (a) is a top view, (b) is a front view, (c) is a right view. It is a front view of an electric motor with an integrated pump , showing a reference view .

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes an electric motor, which opens one end side in the axial direction of a cylindrical frame 2, closes the other end side in the axial direction of the frame 2 with a cover 3, and outputs that are rotatably supported inside the frame 2. The shaft 4 is exposed to an opening on one end side in the axial direction of the frame 2, and a circumferential recess 2 </ b> A is formed on one end side in the axial direction of the frame 2. The output shaft 4 is fitted with an inner ring of the bearing 12 at the end, and a linear recess 4A is formed at the tip. Reference numeral 5 denotes a pump which projects an input shaft 7 rotatably supported inside the pump body 6 to one end side in the axial direction of the pump body 6 and a plurality of bolt members 8 on the other end side of the pump body 6 in the axial direction. 9 is mounted, and the input shaft 7 is rotationally driven to suck and discharge fluid by a pump mechanism (not shown) provided inside the pump body 6. The pump body 6 has a cylindrical convex portion 6A on one end side in the axial direction. The input shaft 7 has a rectangular convex portion 7A at the tip. Reference numeral 10 denotes a bracket member for connecting the electric motor 1 and the pump 5. The frame 2 of the electric motor 1 is attached to the left side surface 11 side of FIG. 1 as one side surface with a plurality of bolt members (not shown) to close the opening and output. A bearing 12 that rotatably supports the shaft 4 is provided.

  As shown in FIG. 2 (b), an annular convex portion 11 </ b> A is formed on the outer peripheral side of the left side surface 11 of the bracket member 10, and is fitted in the recessed portion 2 </ b> A with an inlay by attaching the frame 2. Further, a concave portion 11B is formed in the central portion of the left side surface 11 in the radial direction, and the outer ring of the bearing 12 is fitted therein. A center hole 11C is formed through the bottom surface of the recess 11B and the output shaft 4 is inserted therethrough. The bearing 12 is provided with a fitting gap between the outer ring and the recess 11 </ b> B larger than a fitting gap between the inner ring and the output shaft 4. 11D is a screw hole drilled in the convex portion 11A of the left side surface 11, and four screws are provided at equal intervals in the circumferential direction, and the plurality of bolt members (not shown) to which the frame 2 is attached are screwed. The attachment of the frame 2 to the bracket member 10 is as follows. When the convex portion 11A of the bracket member 10 is fitted into the recess 2A of the frame 2 with an inlay while the inner ring of the bearing 12 is fitted to the end of the output shaft 4, the outer ring of the bearing 12 is fitted into the concave portion 11B. At the same time, the output shaft 4 passes through the center hole 11C and protrudes from the tip.

  The bracket member 10 is attached to the right side surface 13 side of FIG. 1 as the other side surface opposite to the left side surface 11 side, and the plurality of bolt members 8 for attaching the lid member 9 to the pump main body 6 are also attached. . As shown in FIG. 2A, a substantially quadrangular convex portion 13A is formed on the right side surface 13 of the bracket member 10 so as to protrude, and the large diameter hole 13B, medium diameter hole 13C, and small diameter hole 13D are formed in the convex portion 13A. Are continuously drilled from the projecting side end face, and a center hole 11C is opened at the bottom of the small diameter hole 13D. Screw holes 13E are formed in the four corners of the substantially quadrangular shape on the convex portion 13A, radially outward of the large-diameter hole 13B. The pump body 6 is fitted with the convex portion 6A in the large-diameter hole 13B with an inlay, and the plurality of bolt members 8 are screwed into the screw holes 13E. Reference numeral 14 denotes an Oldham coupling that connects the output shaft 4 and the input shaft 7, and a linear key portion 14 </ b> A that engages with the concave portion 4 </ b> A of the output shaft 4 is formed on one side and is formed on the other side that faces the one side. A recess 14B that engages the projection 7A of the input shaft 7 is formed as a recess. The pump body 6 is attached to the bracket member 10 as follows. When the Oldham coupling 14 is engaged with the output shaft 4 with the electric motor 1 attached to the bracket member 10 and the convex portion 6A of the pump body 6 is fitted into the large-diameter hole 13B with an inlay, the convex portion at the tip of the input shaft 7 7A engages with the recess 14B of the Oldham coupling 14. As shown in FIGS. 2 (a) and 2 (b), the bracket member 10 is formed so that the upper part is formed in a semicircular arc shape slightly larger than the outer diameter of the frame 2 of the electric motor 1, and the lower part is formed flat. A circular arc portion 10A is formed projecting downward at the center of the shape. In addition, the bracket member 10 has two screw holes 10B formed in the lower flat portion.

  Reference numeral 15 denotes an attachment leg fixed to an attached member (not shown), which is detachably attached below the bracket member 10. As shown in FIGS. 3A to 3C, the mounting leg 15 is formed in a substantially H shape on a plane, and extends from the both ends of the main body 15A and the main body 15A in the direction orthogonal to the main body 15A. Leg portions 15B and 15C. The main body portion 15A is formed with two insertion holes 15D through which a bolt member (not shown) that is screwed into the screw hole 10B to be attached to the bracket member 10 is penetrated, and the main body portion 15A is engaged with the arc portion 10A by being attached to the bracket member 10. An arcuate recess 15E is formed as a recess. Each of the leg portions 15B, 15C is formed with two attachment holes 15F through which bolt members (not shown) fixed to the attached members are inserted, for a total of four. The mounting leg 15 attached to the bracket member 10 has one end side of each leg portion 15B, 15C positioned below the motor 1, and the other end side facing the one end side of each leg portion 15B, 15C. It is located below the pump 5.

Next, the operation of this configuration will be described.
When the electric motor 1 is energized in the state shown in FIG. 1, the output shaft 4 rotates and the input shaft 7 is driven to rotate, and the pump 5 operates to pump and discharge fluid. When the electric motor 1 is de-energized, the rotation of the output shaft 4 stops and the pump 5 stops the pump operation.

  In such an operation, the mounting leg 15 fixed to the mounted member has one end of each leg 15B, 15C positioned below the motor 1 and the other end of each leg 15B, 15C positioned below the pump 5. Therefore, the electric motor 1 and the pump 5 can be supported by the mounting leg 15, an additional support member for supporting the pump 5 is not required, and an increase in the number of parts can be suppressed, and the configuration can be simplified.

  Further, since the mounting leg 15 is provided on the bracket member 10, the mounting leg 15 can be detached from the electric motor 1 and the pump 5 together with the bracket member 10, so that the fixing by the mounting leg 15 can be easily changed to another fixing means. You can also. Further, since the mounting leg 15 is detachably attached to the bracket member 10, the mounting leg 15 can be removed without removing the bracket member 10 from the electric motor 1 and the pump 5. It can also be changed.

  Further, the bracket member 10 has a bearing 12 that attaches the frame 2 of the electric motor 1 to the left side surface 11 side, closes the opening, and rotatably supports the output shaft 4, so that the frame of the conventional electric motor is supported. The engineering plastic provided at the end can also be used, and the number of parts can be reduced to simplify the configuration.

FIG. 4 shows a reference diagram , and the same portions as those in the embodiment are denoted by the same reference numerals and the description thereof is omitted, and only different portions are described.
The mounting leg 20 is formed integrally with the frame 2 of the electric motor 1, and is provided with an end on one end side of the leg portion 20 </ b> B positioned below the electric motor 2 extending to a position below the pump 5. In the pump 5, a manifold 21 and an electromagnetic switching valve 22 are mounted on a lid member 9.

  The operation is the same as that of the embodiment. In this operation, the mounting leg 20 fixed to the member to be mounted is provided by extending one end of the leg 20B located below the electric motor 2 to a position below the pump 5. Therefore, similarly to the embodiment, the electric motor 1 and the pump 5 can be supported by the mounting legs 20, an additional support member that supports the pump 5 is not required, and an increase in the number of parts can be suppressed, and the configuration is simplified. Can be achieved.

1: Electric motor 4: Output shaft 5: Pump 7: Input shaft 10: Bracket member 12: Bearing 15, 20: Mounting leg

Claims (1)

An electric motor that exposes a rotatable output shaft to one end in the axial direction, a pump that sucks and discharges fluid by rotating the input shaft exposed to one end in the axial direction, and an electric motor and a pump that rotationally drives the input shaft by the output shaft And a mounting leg fixed to the mounted member. The mounting leg is detachably attached to the bracket member, and has at least two legs extending in a plane with a gap therebetween. A pump-integrated electric motor apparatus , wherein one end side of each leg is positioned below the electric motor, and the other end opposite to the one end side is positioned below the pump.

Images