JP2020061840A - Actuator fixing structure, and actuator - Google Patents

Abstract

To provide an actuator fixing structure capable of enhancing freedom of an actuator or a fastening position with respect to the angle position when fixing the actuator onto a to-be-mounted portion, and an actuator.SOLUTION: A flange 225 projected radially outward is provided on an outer circumferential wall 220 of a casing 2 of an actuator 1. In a state in which one surface 228 of the flange 225 is in contact from an opposite output side Lb with a receiving portion facing the opposite output side Lb in a to-be-mounted portion on which the actuator 1 is mounted, a fixture 9 is put on the other surface 229 of the flange 225 from the opposite output side Lb to fix the flange 225 to the receiving portion. The outer circumferential wall 220 is provided with a plurality of planar portions 224 circumferentially arranged at a position adjacent to the flange 225 on the opposite output side Lb. The fixture 9 has a first supporting portion 96 in contact with one planar portion 224 among the plurality of planar portions 224, and a second supporting portion 97 in contact with another planar portion 224.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an actuator fixing structure and an actuator.

  In order to use the actuator for various kinds of equipment, it is necessary to fix the actuator to a mounted portion of the equipment. Therefore, a structure is often used in which a flange portion that protrudes outward in the radial direction is provided in a part of the actuator, the flange portion is brought into contact with the receiving portion of the mounted portion, and the flange portion is fixed with a screw. For example, in Patent Document 1, in a linear actuator, two flange portions are projected in a direction in which they are separated from a casing provided with an annular portion that holds an annular surface of a connector structure, and holes formed in the two flange portions. There has been proposed a structure for fixing the flange portion by utilizing.

Japanese Patent Publication No. 2013-526250

  However, in the configuration described in Patent Document 1, the angular position around the axis of the actuator when the actuator is fixed is uniquely determined by the protruding direction of the two flange portions. Therefore, when it is necessary to change the angular position around the axis of the connector structure or the like depending on the device on which the actuator is mounted, the actuator itself cannot be fixed because the projection directions of the two flange portions of the actuator must be changed. There is a problem that the degree of freedom with respect to the angular position when performing is low.

  In view of the above problems, an object of the present invention is to provide an actuator fixing structure and an actuator fixing structure capable of increasing the degree of freedom with respect to an angular position of an actuator or a fastening position when fixing the actuator to a mounted portion. It is in.

  In order to solve the above problems, an aspect of an actuator fixing structure according to the present invention is an actuator in which a flange portion that projects radially outward is provided on an outer peripheral wall of a casing, and a mounted portion on which the actuator is mounted. In a state in which a part of the casing is in contact with the receiving portion facing the one side from the one side, a fixing member that overlaps the flange portion from the one side, and a fastening member that fixes the fixing device to the mounted portion. And the outer peripheral wall includes a plurality of flat portions arranged in the circumferential direction on the one side with respect to the flange portion, and the fixture is any one of the plurality of flat portions. A first support portion for preventing rotation that comes into contact with the first flat surface portion that is one flat surface portion from the outside in the radial direction, and a single flat surface portion that is different from the first flat surface portion among the plurality of flat surface portions. Radial to 2 planes Characterized in that it comprises a second supporting portion for detent abut the side.

In the actuator fixing structure according to the present invention, the casing is covered by overlapping the fixing tool on the flange portion from one side in a state where a part of the casing is in contact with the receiving portion of the mounted portion on which the actuator is mounted. Fix to the mounting part. Further, a plurality of flat surface portions arranged in the circumferential direction are provided on the outer peripheral wall of the actuator at positions adjacent to the flange portion, and the fixture is provided with a first flat surface portion of the plurality of flat surface portions. The support portion contacts, and the second support portion contacts the second flat surface portion. Therefore, the angular position of the actuator can be prevented from shifting. Also, if it becomes necessary to change the angular position of the actuator when fixing the actuator or the angular position of the fastening part of the fixture due to the structure of the mounted part, etc., use a fixture corresponding to it. Therefore, it is not necessary to change the angular position of the flange portion of the actuator, unlike the case where the flange portion provided on the casing is fixed with screws. Therefore, the degree of freedom with respect to the angular position of the actuator and the fastening position when fixing the actuator to the mounted portion can be increased.

  In the actuator fixing structure according to the present invention, it is possible to adopt a mode in which the first plane portion and the second plane portion are parallel to each other. According to this aspect, when the flange portion is fixed by the fixture, the first support portion and the second support portion of the fixture can reliably prevent the angular position of the actuator from shifting.

  In the actuator fixing structure according to the present invention, the plurality of flat portions include a plurality of pairs of two flat portions that are parallel to each other, and any pair of the plurality of pairs is formed. It is possible to adopt an aspect in which one of the two flat portions is the first flat portion and the other is the second flat portion. According to this aspect, even when the angular position when fixing the actuator to the mounted portion is changed, the actuator can be fixed by using the different flat surface portions as the first flat surface portion and the second flat surface portion.

  In the actuator fixing structure according to the present invention, the outer peripheral wall may adopt a mode in which a portion located between the plurality of plane portions is curved in an arc shape along a circumferential direction.

  In the actuator fixing structure according to the present invention, it is possible to adopt a mode in which the casing is provided with a connector housing portion that opens outward in the radial direction. In the case of such an aspect, even if it is necessary to change the direction of the connector housing portion, it is possible to easily cope with it.

  In the actuator fixing structure according to the present invention, it is possible to adopt a mode in which the actuator has a motor arranged inside the casing, and an output member driven by the motor as a drive source.

  An aspect of the actuator according to the present invention includes a casing in which a flange portion protruding outward in the radial direction is provided on an outer peripheral wall, and the outer peripheral wall is arranged at a position adjacent to the flange portion in the circumferential direction. It is characterized in that a plurality of flat portions are provided.

  In the actuator according to the present invention, with a part of the casing in contact with the receiving portion of the mounted portion on which the actuator is mounted from one side, the casing is mounted on the mounted portion by stacking the fixing tool on the flange portion from one side. Fix it. Further, a plurality of flat surface portions arranged in the circumferential direction are provided on the outer peripheral wall of the actuator at positions adjacent to the flange portion, and the fixture is provided with a first flat surface portion among the plurality of flat surface portions. The support portion contacts, and the second support portion contacts the second flat surface portion. Therefore, the angular position of the actuator can be prevented from shifting. Also, if it becomes necessary to change the angular position of the actuator when fixing the actuator or the angular position of the fastening part of the fixture due to the structure of the mounted part, etc., use a fixture corresponding to it. Therefore, it is not necessary to change the angular position of the flange portion of the actuator, unlike the case where the flange portion provided on the casing is fixed with screws. Therefore, the degree of freedom with respect to the angular position of the actuator and the fastening position when fixing the actuator to the mounted portion can be increased.

In the actuator according to the present invention, it is possible to adopt a mode in which the plurality of plane portions include a pair of two plane portions parallel to each other. According to this aspect, when the flange portion is fixed by the fixture, the first support portion and the second support portion of the fixture can reliably prevent the angular position of the actuator from shifting.

  In the actuator according to the present invention, it is possible to adopt a mode in which the plurality of plane portions include a plurality of pairs of two plane portions parallel to each other. According to this aspect, even when the angular position when fixing the actuator to the mounted portion is changed, the actuator can be fixed using another flat surface portion.

  In the actuator according to the present invention, the outer peripheral wall may employ a mode in which a portion located between the plurality of flat surface portions is a peripheral wall curved in an arc shape along the circumferential direction.

  In the actuator according to the present invention, it is possible to adopt a mode in which the casing is provided with a connector housing portion that is open outward in the radial direction. In the case of such an aspect, even if it is necessary to change the direction of the connector housing portion, it is possible to easily cope with it.

  In the actuator according to the present invention, it is possible to adopt a mode having a motor arranged inside the casing and an output member driven by using the motor as a drive source.

  In the present invention, the casing is fixed to the mounted portion by stacking the fixing tool on the flange portion from one side in a state where a part of the casing is in contact with the receiving portion of the mounted portion on which the actuator is mounted from one side. Further, a plurality of flat surface portions arranged in the circumferential direction are provided on the outer peripheral wall of the actuator at positions adjacent to the flange portion, and the fixture is provided with a first flat surface portion among the plurality of flat surface portions. The support portion contacts, and the second support portion contacts the second flat surface portion. Therefore, the angular position of the actuator can be prevented from shifting. Also, if it becomes necessary to change the angular position of the actuator when fixing the actuator or the angular position of the fastening part of the fixture due to the structure of the mounted part, etc., use a fixture corresponding to it. Therefore, it is not necessary to change the angular position of the flange portion of the actuator, unlike the case where the flange portion provided on the casing is fixed with screws. Therefore, the degree of freedom with respect to the angular position of the actuator and the fastening position when fixing the actuator to the mounted portion can be increased.

FIG. 3 is a perspective view showing an aspect of the actuator according to the first embodiment of the present invention. Sectional drawing of the actuator shown in FIG. Explanatory drawing which shows the rotation stop structure by the fixing tool shown in FIG. FIG. 9 is an explanatory diagram of an actuator according to a first modification of the first embodiment of the present invention. FIG. 9 is an explanatory diagram of an actuator according to a second modification of the first embodiment of the present invention. FIG. 6 is an explanatory view showing a rotation stop structure by a fixture in the actuator according to the second embodiment of the present invention.

  An embodiment of the present invention will be described with reference to the drawings. In the following description, the axis line of the actuator 1 is denoted by L, the side where the rotary shaft 61 projects from the motor case 21 in the direction of the axis line L is the output side La, and the side opposite to the output side La is the opposite output side. It will be described as Lb. In the present invention, the case where the “one side” when fixing the actuator 1 is the non-output side Lb will be mainly described.

[Embodiment 1]
(Overall structure of actuator 1)
FIG. 1 is a perspective view showing an aspect of the actuator 1 according to the first embodiment of the present invention. FIG. 2 is a sectional view of the actuator 1 shown in FIG.

  In the actuator 1 shown in FIGS. 1 and 2, the casing 2 is composed of the motor case 21 and the sealing member 22 arranged on the opposite output side Lb of the motor case 21.

  As shown in FIG. 2, the actuator 1 has a motor 10 arranged inside the casing 2, and an output member 71 that is driven by the motor 10 such as rotary drive or linear drive. . In the present embodiment, the actuator 1 is a linear actuator in which the output member 71 is linearly driven by using the motor 10 as a driving source. The motor 10 has a cylindrical stator 5 inside the motor case 21 of the casing 2, and a rotor 6 inside the stator 5.

  The stator 5 includes a stator core 52. In this embodiment, when molding the coil bobbin 53 around which the coil 51 is wound, the lid portion 54 that closes the opening of the motor case 21 on the opposite output side Lb is integrally formed. The rotor 6 has a rotating shaft 61 and a permanent magnet 62 fixed to the outer peripheral surface of the rotating shaft 61, and the rotating shaft 61 partially projects from the motor case 21 toward the output side La. .

  The end of the rotary shaft 61 on the opposite output side Lb is supported by a steel ball 66 and a radial bearing 67, and the steel ball 66 and the radial bearing 67 are supported by the lid 54. The rotating shaft 61 is also rotatably supported by a radial bearing 68 held at the end of the output side La of the motor case 21.

  A male screw 610 is formed on a portion of the rotating shaft 61 that projects from the motor case 21 toward the output side La, and the female screw 710 of the output member 71 meshes with the male screw 610. Since the output member 71 is used in the valve device described later, a conical surface is formed at the end portion on the output side La. The output member 71 is formed with a groove-shaped recess 711 opening to the opposite output side Lb, and a stopper 72 fixed to the end of the motor case 21 on the output side La is arranged inside the recess 711. ing. The stopper 72 prevents the output member 71 from rotating around when the rotating shaft 61 rotates around the axis L. Therefore, when the rotary shaft 61 rotates around the axis L, the output member 71 moves linearly along the axis L. A coil spring 73 is arranged inside the recess 711. The coil spring 73 suppresses the backlash between the male screw 610 and the female screw 710 by urging the output member 71 toward the output side La.

(Structure of casing 2)
The sealing member 22 of the casing 2 is made of resin, covers the portion of the outer peripheral surface of the motor case 21 located on the opposite output side Lb, and seals the gap between the motor case 21 and the lid portion 54. . The lid portion 54 supports a plurality of terminal pins 55 extending in a direction perpendicular to the axis L. One end 551 of the terminal pin 55 is covered with the cover 29, and the cover 29 is covered with the sealing member 22. The sealing member 22 is formed with a cylindrical connector housing portion 23 that is open to the outside in the radial direction orthogonal to the axis L, and the other end 552 of the terminal pin 55 is located inside the connector housing portion 23. .

As shown in FIGS. 1 and 2, in the casing 2, the sealing member 22 has a cylindrical outer peripheral wall 220 as a whole, and a radial direction is provided near the center of the outer peripheral wall 220 in the axis L direction. An annular flange portion 225 that protrudes outward is provided. Therefore, the outer peripheral wall 220 has a first outer peripheral portion 221 that is adjacent to the flange portion 225 on the output side La and a second outer peripheral portion 222 that is adjacent to the flange portion 225 on the opposite output side Lb. .

  The first outer peripheral portion 221 is formed with a plurality of semicircular convex portions 223 in the circumferential direction, and the spaces between the convex portions 223 are curved in an arc shape along the circumferential direction.

  A plurality of flat surface portions 224 are formed in the second outer peripheral portion 222 in the circumferential direction, and the space between the flat surface portions 224 is curved in an arc shape along the circumferential direction.

(Fixed structure)
As shown in FIG. 2, the actuator 1 uses the motor 10 as a drive source to drive the output member 71 along the axis L direction, and thus is used in the valve device 100 or the like that uses the output member 71 as a valve body. Therefore, the valve device 100 is provided with the mounted portion 110 on which the actuator 1 is mounted. Further, the valve device 100 is provided with a first flow path 160 and a second flow path 170 that are partitioned by a partition wall 150, and the partition wall 150 has a first flow path 160 and a second flow path 170. A communication hole 155 is formed to communicate with and.

  When the actuator 1 is fixed to the mounted portion 110, the output member 71 is arranged in the second flow path 170 at a position overlapping the communication hole 155. Therefore, as shown in FIG. 2, when the output member 71 is driven to the opposite output side Lb and separated from the communication hole 155, the communication hole 155 is opened, so that the first flow path 160 to the second flow path 170 are opened. The fluid G flows into. On the other hand, when the output member 71 is driven to the output side La to close the communication hole 155, the inflow of the fluid G from the first flow passage 160 to the second flow passage 170 is stopped. Note that, contrary to FIG. 2, the fluid G may flow from the second flow path 170 into the first flow path 160 via the communication hole 155.

  In this embodiment, when the actuator 1 is mounted on the valve device 100, the portion of the actuator 1 on the output side La of the motor case 21 is inserted into the hole 111 formed in the wall-shaped mounted portion 110. A step portion is formed on the inner surface of the hole 111, and a receiving portion 112 facing the non-output side Lb (one side) is formed as an annular surface. Therefore, when the motor case 21 is inserted into the hole 111, a part of the casing 2 contacts the receiving portion 112 from the opposite output side Lb. In the present embodiment, when the motor case 21 is inserted into the hole 111, the one surface 228 of the flange portion 225 of the sealing member 22 facing the output side La is a part of the casing 2 and is opposite the output side Lb to the receiving portion 112. Abut.

  In this state, in the flange portion 225, the plate-like fixture 9 is superposed on the other surface 229 facing the opposite output side Lb from the opposite output side Lb, and the fixture 9 is fixed to the mounted portion 110 by the fastening member 99 such as a screw. To do. More specifically, the fixture 9 is formed with a hole 91 through which the fastening member 99 is inserted, while the mounted portion 110 is formed with a screw hole 119 for stopping the fastening member 99. Therefore, when the fastening member 99 is fixed to the screw hole 119 and the fastening member 99 is fixed to the mounted portion 110, the flange portion 225 is fixed between the fixture 9 and the receiving portion 112. Therefore, the actuator 1 is fixed to the mounted portion 110.

(Anti-rotation structure with fixture 9)
FIG. 3 is an explanatory view showing a rotation stop structure by the fixture 9 shown in FIG. 1, and FIG. 3 shows an arrangement structure (a) of the flat surface portion 224 formed in the casing 2 and a rotation by the fixture 9. Stop structures (b)-(e) are shown.

As shown in the arrangement structure (a) of FIG. 3, in the present embodiment, a plurality of flat portions 224 are formed on the second outer peripheral portion 222 of the outer peripheral wall 220 of the casing 2 (sealing member 22). In this embodiment, the plurality of flat portions 224 include a plurality of pairs of two flat portions 224 that are parallel to each other. In this embodiment, four plane portions 224 are formed at equal angular intervals along the circumferential direction. Therefore, the plurality of flat portions 224 include two pairs of flat portions 224 that are parallel to each other.

  Further, as shown in the rotation stop structure (b) of FIG. 3, the fixture 9 includes a base portion 92 in which a hole 91 for passing a fastening member 99 such as a screw is formed, and an arm-shaped first support overlapping the flange portion 225. A portion 96 and a second support portion 97 that overlaps the flange portion 225 at a position separated from the first support portion 96 are formed.

  Here, the first support portion 96 radially comes into contact with the first flat surface portion 224a, which is one of the plurality of flat surface portions 224 formed on the outer peripheral wall 220, and thus the second support portion Of the plurality of flat surface portions 224 formed on the outer peripheral wall 220, 97 comes into contact with the second flat surface portion 224b, which is one flat surface portion 224 different from the first flat surface portion 224a, from the outside in the radial direction. Therefore, it is possible to prevent the angular position from deviating when the actuator 1 is fixed.

  In this embodiment, the first support portion 96 and the second support portion 97 are parallel to each other. Therefore, in the plurality of flat surface portions 224, one of the two flat surface portions 224 forming one of the two pairs of the parallel flat surface portions 224 is the first flat surface portion 224a, and the two flat surface portions 224 are The other is the second plane portion 224b.

  As described above, in the present embodiment, as described with reference to FIGS. 2 and 3, the one surface 228 of the flange portion 225 is in contact with the receiving portion 112 of the mounted portion 110 on which the actuator 1 is mounted. The fixture 9 is overlapped from the other surface 229 side of the flange portion 225 to fix the flange portion 225 to the receiving portion 112.

  In addition, the outer peripheral wall 220 of the actuator 1 is provided with a plurality of flat surface portions 224 arranged in the circumferential direction at positions adjacent to the flange portion 225, and the fixture 9 is a first flat surface portion 224 of the plurality of flat surface portions 224. The 1st support part 96 contacts the 1st plane part 224a, and the 2nd support part 97 contacts the 2nd plane part 224b. Therefore, the angular position of the actuator 1 can be prevented from shifting.

  Further, when it is necessary to change the angular position of the actuator 1 when fixing the actuator 1 or the angular position of the fastening portion (hole 91) of the fixture 9 due to the structure of the mounted portion 110 or the like, It suffices to take a measure such as using the fixing tool 9 in accordance therewith, and unlike the case of fixing the flange portion 225 provided on the casing 2 with a screw, it is not necessary to change the angular position of the flange portion 225 in the actuator 1. .

  For example, even if the angular position of the actuator 1 is changed by 90 ° without changing the angular position of the fixture 9 from the state shown in the detent structure (b) of FIG. The first support portion 96 and the second support portion 97 contact the flat portion 224a and the second flat portion 224b to prevent the angular position of the actuator 1 from shifting. Therefore, the degree of freedom with respect to the angular position of the actuator 1 when fixing the actuator 1 to the mounted portion 110 can be increased.

In addition, even if it is necessary to change the position of the hole 91 by 90 ° from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (c), the angle of the fixture 9 When the position is changed by 90 °, two flat surface portions different from the flat surface portion 224 shown in the detent structure (b) are respectively defined as the first flat surface portion 224a and the second flat surface portion 224b, and the first support portion 96 and the second support portion 96 are formed. The portion 97 contacts and prevents the angular position of the actuator 1 from shifting. Therefore, the degree of freedom with respect to the angular position of the fastening position (hole 91) when fixing the actuator 1 to the mounted portion 110 can be increased. Further, also in the detent structure (c) of FIG. 3, the angular position of the actuator 1 can be changed by 90 °.

  Further, as shown in the detent structure (d) of FIG. 3, since two holes 91 are required, the fixture 9 having the holes 91 in each of the first support portion 96 and the second support portion 97 is used. Also in this case, the two flat portions 224 parallel to each other among the four flat portions 224 are used as the first flat portion 224a and the second flat portion 224b, and the first support portion 96 and the second support portion 97 are in contact with each other, and It prevents the angular position of 1 from shifting. Also, in the detent structure (d) of FIG. 3, the angular position of the actuator 1 can be changed by 90 °.

  Furthermore, as a result of changing from the detent structure (d) of FIG. 3 to the detent structure (e) of FIG. 3, as a result of the four plane parts 224, two plane parts 224 which are not parallel to each other are formed on the first plane. Even if the first support portion 96 and the second support portion 97 come into contact with each other as the portion 224a and the second plane portion 224b, the angular position of the actuator 1 is prevented from shifting. Also, in the detent structure (e) of FIG. 3, the angular position of the actuator 1 can be changed by 90 °.

[Modification 1 of Embodiment 1]
FIG. 4 is an explanatory diagram of the actuator 1 according to the first modification of the first embodiment of the present invention. Since the basic configuration of this example is the same as that of the first embodiment, the common parts are denoted by the same reference numerals and the description thereof will be omitted.

  In the first embodiment, four flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2 at equal angular intervals, so the plurality of flat surface portions 224 include two pairs of flat surface portions 224 that are parallel to each other. There is. On the other hand, in the embodiment shown in FIG. 4, since eight flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2 at equal angular intervals, the plurality of flat surface portions 224 have a pair of flat surface portions 224 that are parallel to each other. 4 are included. Even in this mode, the same effect as that of the first embodiment is obtained.

  If the number of flat portions 224 is too large, the portion where the first support portion 96 and the second support portion 97 contact each other becomes narrow. Therefore, when the plane portions 224 are formed at equal angular intervals, the number of the plane portions 224 is preferably 8 or less.

[Modification 2 of Embodiment 1]
FIG. 5: is explanatory drawing of the actuator 1 which concerns on the modification 2 of Embodiment 1 of this invention. Since the basic configuration of this example is the same as that of the first embodiment, the common parts are denoted by the same reference numerals and the description thereof will be omitted.

  In the first embodiment, four flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2 at equal angular intervals, so the plurality of flat surface portions 224 include two pairs of flat surface portions 224 that are parallel to each other. There is. On the other hand, in the embodiment shown in FIG. 5, six flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2, and the plurality of flat surface portions 224 include three pairs of flat surface portions 224 that are parallel to each other. include. Since the six flat portions 224 are formed at intervals of 45 °, the outer peripheral wall 220 of the casing 2 has arcuate portions at two positions sandwiched by the flat portions 224. Even in this mode, the same effect as that of the first embodiment is obtained.

[Embodiment 2]
FIG. 6 is an explanatory view showing a rotation stop structure by the fixture 9 in the actuator 1 according to the second embodiment of the present invention, and FIG. 6 shows an arrangement structure (a) of the flat surface portion 224 formed in the casing 2. At the same time, the detent structure (b), (c) by the fixture 9 is shown. In addition,
Since the basic configuration of the present embodiment is the same as that of the first embodiment, the common parts are designated by the same reference numerals and the description thereof will be omitted.

  In the first embodiment, four flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2 at equal angular intervals, so the plurality of flat surface portions 224 include two pairs of flat surface portions 224 that are parallel to each other. There is. On the other hand, in the present embodiment, as shown in FIG. 6, only two flat surface portions 224 are formed on the outer peripheral wall 220 of the casing 2 at equal angular intervals. One pair of plane portions 224 that are parallel to each other is included.

  In such a mode, as shown in the rotation stop structure (b) of FIG. 6, one of the two flat surface portions 224 is the first flat surface portion 224 a with which the first support portion 96 abuts, and the two flat surface portions 224. The other is a second flat surface portion 224b with which the second support portion 97 abuts. Therefore, the angular position of the actuator 1 can be prevented from shifting.

  Even if it is necessary to change the position of the hole 91 by 90 ° from the state shown in FIG. 6 (b) to the state shown in FIG. 6 (c), the angle of the fixture 9 The position can be changed by 90 °.

[Other Embodiments]
In the above embodiment, when the actuator 1 is fixed to the mounted portion 110, the flange portion 225 of the sealing member 22 is in contact with the receiving portion 112 from the non-output side Lb as a part of the casing 2. However, in the structure in which a part of the casing 2 abuts on the other receiving portion formed inside the hole 111 or the like from the non-output side Lb, the portion other than the flange portion 225 contacts the receiving portion from the non-output side Lb. You may employ the structure which contacts.

  Although the linear actuator is illustrated as the actuator 1 in the above embodiment, the present invention may be applied to the case of fixing another actuator.

1 ... Actuator, 2 ... Casing, 5 ... Stator, 6 ... Rotor, 9 ... Fixing tool, 10 ... Motor, 21 ... Motor case, 22 ... Sealing member, 23 ... Connector housing part, 55 ... Terminal pin, 61 ... Rotation Shaft, 62 ... Permanent magnet, 71 ... Output member, 96 ... First support portion, 97 ... Second support portion, 99 ... Fastening member, 100 ... Valve device, 110 ... Mounted portion, 112 ... Receiving portion, 150 ... Partition wall 155 ... Communication hole, 160 ... 1st flow path, 170 ... 2nd flow path, 220 ... Outer peripheral wall, 221 ... 1st outer peripheral part, 222 ... 2nd outer peripheral part, 224 ... Plane part, 224a ... 1st plane part 224b ... 2nd plane part, 225 ... flange part, 228 ... one side, 229 ... other side, G ... fluid, L ... axis line

Claims (12)

An actuator in which a flange portion protruding outward in the radial direction is provided on the outer peripheral wall of the casing,
A fixture that overlaps the flange portion from the one side in a state where a part of the casing is in contact with the receiving portion facing the one side in the mounted portion on which the actuator is mounted, from the one side,
A fastening member for fixing the fixture to the mounted portion,
Have
The outer peripheral wall includes a plurality of plane portions arranged in the circumferential direction on the one side with respect to the flange portion,
The fixture includes a first support portion for rotation prevention that comes into contact with a first flat surface portion that is any one of the plurality of flat surface portions from a radial outside, and a plurality of the flat surface portions. A fixing structure for an actuator, comprising: a second supporting portion, which is a flat surface portion different from the first flat surface portion, that is in contact with the second flat surface portion from the outside in the radial direction. The actuator fixing structure according to claim 1,
The fixing structure for an actuator, wherein the first plane portion and the second plane portion are parallel to each other. The actuator fixing structure according to claim 2,
The plurality of flat portions include a plurality of pairs of two flat portions that are parallel to each other,
One of the plurality of pairs, one of the two flat surface portions forming the pair is the first flat surface portion, and the other is the second flat surface portion. The actuator fixing structure according to any one of claims 1 to 3,
The fixing structure for an actuator, wherein the outer peripheral wall has a portion located between the plurality of flat portions curved in an arc shape along the circumferential direction. The actuator fixing structure according to any one of claims 1 to 4,
The actuator fixing structure, wherein the casing is provided with a connector housing portion that is open outward in the radial direction. The actuator fixing structure according to any one of claims 1 to 5,
The actuator fixing structure, wherein the actuator includes a motor arranged inside the casing, and an output member driven by the motor as a drive source. The casing is provided with a flange portion protruding outward in the radial direction on the outer peripheral wall,
The actuator, wherein the outer peripheral wall is provided with a plurality of flat portions arranged in the circumferential direction at positions adjacent to the flange portion. The actuator according to claim 7,
An actuator characterized in that the plurality of plane portions include a pair of two plane portions parallel to each other. The actuator according to claim 8,
An actuator characterized in that a plurality of pairs of two plane portions parallel to each other are included in the plurality of plane portions. The actuator according to any one of claims 7 to 9,
The actuator is characterized in that the outer peripheral wall is a peripheral wall in which a portion located between the plurality of plane portions is curved in an arc shape along the circumferential direction. The actuator according to any one of claims 7 to 10,
The actuator is characterized in that the casing is provided with a connector housing portion that opens outward in the radial direction. The actuator according to any one of claims 7 to 11,
An actuator, comprising: a motor arranged inside the casing; and an output member driven by the motor as a drive source.

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