JP5002754B2 - Axis adjustment device - Google Patents

Description

  The present invention relates to a shaft adjusting device.

  Conventionally, for example, when connecting a plurality of pipes, a piano wire or the like is used so that the cylindrical axis of the internal cylindrical space in the reference pipe is coaxial with the cylindrical axis of the internal cylindrical space in the pipe connected to the reference pipe. Adjustments have been made. Specifically, in the axis adjustment, first, along the cylindrical axis of the upper tube, the plurality of tubes are temporarily connected vertically so that the cylindrical axes of the plurality of tubes are perpendicular to the horizontal plane. The piano wire with a weight at one end is hung down, and then the distance from the piano wire to the cylindrical inner peripheral surface is kept constant while measuring the distance from the piano wire to the cylindrical inner peripheral surface. As a result, the position of the adjacent temporarily connected pipes is finely adjusted. And the measurement of the distance from the piano wire to the cylindrical inner peripheral surface of the pipe and the fine adjustment of the pipe position are, for example, based on experience while an expert carefully measures the distance using an inside micrometer or the like. The position of the tube was finely adjusted with the cultivated feeling.

  As described above, such an axis adjustment operation is difficult unless it is an expert. Further, in the above measurement, when the inside micro or the hand of the measurer touches the piano wire, the piano wire is shaken, and the next measurement cannot be performed until the shake is settled. For this reason, there has been a problem that a long time is required for the shaft adjustment work. Further, when the skilled person performs the measurement and fine adjustment of the position of the tube over a long time as described above, for example, the inside micro is warmed by the body temperature of the operator. For this reason, the length of the inside micro may change under the influence of the body temperature, and there is a problem that the reliability of the measurement result is not sufficient.

Then, the axis | shaft adjustment apparatus which has a measuring device arrange | positioned so that it may surround a piano wire and is suspended along a piano wire is proposed (for example, refer patent document 1). The measuring instrument includes a positioning member that extends from the side surface and abuts against the cylindrical inner peripheral surface of the pipe, and mechanically measures the distance from the piano wire to the cylindrical inner peripheral surface while being positioned by the positioning member.
Japanese Patent Laid-Open No. 8-340662

  Since the shaft adjusting device described in Patent Document 1 can perform a shaft adjusting operation by a mechanical operation, an operator other than a skilled worker can perform the shaft adjusting operation. Furthermore, there is a merit that there are few measurement errors. However, when the axis adjustment work is performed by the apparatus described in Patent Document 1, there is a problem that a reel device or the like that can adjust the vertical position by hanging the measuring instrument is separately required. Further, even when the shaft adjusting device described in Patent Document 1 is used, the piano wire sways when adjusting the position of the pipe, so that the problem of taking a long time for measurement has not been solved.

  In view of such a problem, an object of the present invention is to provide an axis adjustment device that can perform axis adjustment with a simple operation.

  The inventors have positioned a predetermined base member having contact portions disposed at both ends in a state in which both ends are in contact with the cylindrical inner peripheral surface of the cylindrical member as a reference and are stretched. A reference member extending in the axial direction is arranged at a predetermined position in the base member, and an end portion of the positioning member adjusted to a predetermined length in the radial direction of the cylindrical member is located in a cylindrical space of the cylindrical member to be adjusted. By arranging the positioning members so as to be arranged, a shaft adjusting device capable of easily adjusting the shaft was found, and the present invention was completed.

  (1) a first cylindrical member having a first cylindrical inner peripheral surface forming a first cylindrical space, a first cylindrical member formed at one end of the first cylindrical inner peripheral surface and continuing to the first cylindrical space; A second cylindrical inner peripheral surface forming a two cylindrical space, and a second opening formed at one end of the second cylindrical inner peripheral surface and continuing to the second cylindrical space, the first cylindrical space and the second cylinder A second cylindrical member disposed on the first cylindrical member with the second opening facing the first opening so as to form a continuous space with the first opening of the first cylindrical space. An apparatus for adjusting an axis for adjusting a deviation between a cylindrical shaft and a second cylindrical shaft of the second cylindrical space, wherein the device moves to the inner peripheral surface of the first cylinder in a circumferential direction of the inner peripheral surface of the first cylinder. The first abutting part and the second abutting part that abut against each other, and hold the first abutting part and the second abutting part, and the first abutting part A base portion having an adjuster mechanism capable of adjusting a distance between the contact portion and the second contact portion; a reference portion disposed on the base portion; one end side being held by the reference portion; An axis adjustment device comprising: one or a plurality of positioning portions arranged in the second cylindrical space.

  The shaft adjusting device according to the invention of (1) includes a first contact portion and a second contact portion that contact the inner peripheral surface of the first cylinder so as to be movable in the circumferential direction of the inner peripheral surface of the first cylinder, A base portion that has an adjuster mechanism that holds the first contact portion and the second contact portion and can adjust the distance between the first contact portion and the second contact portion, and a reference that is disposed on the base portion And one or a plurality of positioning portions having one end side held by the reference portion and the other end disposed in the second cylindrical space. Thus, first, the adjuster mechanism in the base portion is adjusted so that the distance between the first contact portion and the second contact portion is such that the first contact portion and the second contact portion contact the inner peripheral surface of the first cylinder. The first cylindrical shape is adjusted, and then the position and length of the positioning part held by the reference part arranged at a predetermined position are adjusted so that one end of the positioning part is arranged in the second cylindrical space. The axis can be adjusted by performing an operation of finely adjusting the positions of the member and the second cylindrical member predetermined.

  The base portion includes a first contact portion and a second contact portion that contact the inner peripheral surface of the first cylinder so as to be movable in a circumferential direction of the inner peripheral surface of the first cylinder, and the first contact portion and the first contact portion. 2 and an adjuster mechanism that can adjust the distance between the first abutment portion and the second abutment portion. For example, the adjuster mechanism can adjust the distance between the first abutment portion and the second abutment portion. By adjusting the distance from the contact portion, the first contact portion and the second contact portion can be brought into contact with each other so as to press against the inner peripheral surface of the first cylinder. Thereby, a highly accurate axis | shaft adjustment can be performed.

  Here, the shape of the base part is not limited as long as the base part can hold the first contact part and the second contact part and change the distance between them. For example, the base portion may have a linear shape as a whole, a triangular shape, or a quadrangular shape when viewed from above.

  Further, the base portion does not need to be arranged in parallel with the radial direction in the radial direction in the first cylindrical space, and may be arranged obliquely so as to form a predetermined angle in the radial direction, for example.

  Further, the adjuster mechanism in the base portion is not particularly limited as long as it is a mechanism for changing the distance between the first contact portion and the second contact portion. The adjuster mechanism may include a predetermined drive mechanism for changing the distance between the first contact portion and the second contact portion.

  The reference portion is configured to be arranged at a predetermined position in the base portion. For example, the reference portion may be fixed to the base portion, may be slidably or movably disposed, and may be detachably disposed.

  The shape of the reference portion is not particularly limited as long as it can hold the positioning portion. For example, the reference portion can be configured by arranging a rod-shaped member in parallel with the first cylindrical axis direction. Moreover, the reference | standard part can also be comprised so that the length can be expanded-contracted. For example, it can be expanded and contracted in the first cylindrical axis direction while holding the positioning member.

  The positioning part can arrange | position the edge part opposite to the edge part side hold | maintained at a reference | standard part in 2nd cylindrical space. The positioning portion is disposed so as to extend from the reference portion in the direction of the inner peripheral surface of the second cylinder. For example, one end of the positioning portion is in the inner periphery of the second cylinder while the length of the second cylindrical space in the radial direction is kept constant. Located near or in contact with the surface. Then, in a state where the shaft adjusting device is rotated around the first cylindrical shaft, the distance between the one end of the positioning portion and the inner peripheral surface of the second cylinder is equal or evenly contacts with the one end. The axis can be adjusted by adjusting the position of the second cylindrical member.

  Moreover, the shaft adjusting device of the present invention may include a plurality of positioning portions. By doing so, for example, the other ends of the plurality of positioning portions can simultaneously contact different portions of the inner peripheral surface of the second cylinder, so that the axis adjustment of the first cylindrical member can be more accurately performed. Can be done.

  Here, the first cylindrical space of the first cylindrical portion and the second cylindrical space of the second cylindrical member are not only completely cylindrical spaces, but also the cylindrical inner peripheral surface forms a predetermined angle with respect to the axis. Such a shape, for example, a space formed by a cylindrical inner peripheral surface in a predetermined region such as a part of a side surface of a cone is also included.

  Further, the cylindrical space continuous to the opening includes not only a cylindrical space formed in the vicinity of the opening but also a cylindrical space formed in a predetermined region in a space continuous from the opening. Furthermore, the diameter in this cylindrical space need not be the same as the diameter of the opening. Similarly, the cylindrical inner peripheral surface in the cylindrical space is not limited to the cylindrical inner peripheral surface formed continuously in the vicinity of the opening, but the cylindrical inner peripheral surface of the cylindrical space formed in a predetermined region in the space continuous from the opening. Including face.

  (2) The shaft adjusting device according to (1), wherein the first contact portion and the second contact portion are substantially cylindrical or substantially spherical roller members.

  According to the shaft adjusting device in the invention of (2), the first contact portion and the second contact portion are substantially cylindrical or substantially spherical roller members. Thereby, the shaft adjusting device of the present invention can be easily rotated around the first cylindrical shaft in a state where the first contact portion and the second contact portion are in contact with the inner peripheral surface of the first cylinder. it can. As a result, the shaft can be adjusted smoothly. In particular, when the abutting portion is a substantially spherical roller member, for example, it is also suitable for an inner circumferential surface of the first cylinder that is formed obliquely so as to form a predetermined angle with respect to the first cylinder axis. The shaft adjusting device of the present invention can be suitably rotated.

  (3) The base portion further includes a first base member that holds the first abutting portion and a second base member that holds the second abutting portion, and the adjuster mechanism includes the first base member. A shaft member that connects the base member and the second base member, and is disposed on at least one of the first base member or the second base member, and slidably holds the shaft member and holds the shaft member in a predetermined direction. The shaft adjusting device according to (1) or (2).

  In the shaft adjusting device according to the invention of (3), the base portion further includes a first base member holding the first abutting portion and a second base member holding the second abutting portion, and an adjuster mechanism. Is disposed on at least one of the first base member or the second base member and slidably holds the shaft member, and connects the shaft member to the first base member and the second base member. And a shaft guide portion that guides in a predetermined direction. Thereby, while being able to change suitably the distance of a 1st base member and a 2nd base member, the distance of a 1st contact part and a 2nd contact part can be changed suitably.

  (4) The base portion may further include a pressing member that presses the first base member and the second base member toward the inner peripheral surface of the first cylinder, respectively (1) to (3). Axis adjustment device.

  In the shaft adjusting device according to the invention of (4), the base portion includes a pressing member that presses the first contact portion and the second contact portion against the inner peripheral surface of the first cylinder. Thereby, the 1st contact part hold | maintained at the 1st base member and the 2nd contact part hold | maintained at the 2nd base member are contact | abutted so that it may respectively press on the 1st cylinder internal peripheral surface. As a result, the base portion is firmly positioned in the radial direction in the first cylindrical space, and the accuracy of the axis adjustment is improved.

  Here, examples of the pressing member include an elastic member such as a spring having a predetermined shape, and a predetermined expansion / contraction drive device.

  (5) The shaft adjusting device according to any one of (1) to (4), wherein the reference portion is detachably disposed on the base portion.

  In the shaft adjusting device according to the invention of (5), the reference portion is detachably disposed on the base portion. Thereby, the reference portion can be arranged at a predetermined position in the base portion.

  Moreover, a base part and a reference | standard part can be made into a separate member. As a result, the shaft adjusting device of the present invention is a shaft adjusting device that excels in workability in shaft adjustment and transportability of the device. For example, after the base portion is arranged in a predetermined state, the reference portion can be attached to perform the axis adjustment work. Moreover, a base part and a reference | standard part can be isolate | separated and conveyed at the time of conveyance.

  (6) The base portion further includes a mounting portion made of a predetermined metal, and the reference portion is a substantially rod-shaped reference member and a magnet portion that is disposed at one end of the reference member and is detachable from the mounting portion. And the shaft adjusting device according to (5).

  The shaft adjusting apparatus according to the invention of (6) further includes a mounting portion in which the base portion is made of a predetermined metal, and the reference portion is disposed at one end of the substantially rod-shaped reference member and the reference member. A detachable magnet unit. As a result, the reference portion is detachably and easily disposed on the mounting portion formed at a predetermined position on the base portion.

  (7) The one or more positioning portions are held by the reference portion so that the length in the radial direction of the second cylindrical space can be adjusted from the reference portion. Axis adjustment device.

  In the shaft adjustment device according to the invention of (7), the one or more positioning portions are held by the reference portion so that the length in the radial direction of the second cylindrical space can be adjusted from the reference portion. Thereby, the length in the radial direction of the second cylindrical space from the reference portion of the positioning portion can be adjusted so that one end of the positioning portion is disposed in the second cylindrical space.

  (8) The one or more positioning portions are arranged so that the other end of the positioning portion is in the vicinity of or in contact with the inner peripheral surface of the second cylinder (1). To (7).

  In the shaft adjusting device according to the invention of (8), the one or more positioning portions are arranged such that the other end of the positioning portion is in the vicinity of the inner peripheral surface of the second cylinder or in contact with the inner peripheral surface of the second cylinder. Be placed. Accordingly, the axis can be adjusted while adjusting the position of the second cylindrical member with reference to the other end which is the end of the positioning portion. For example, the distance from the other end can be adjusted to be constant, or the contact at the other end can be adjusted to be uniform.

  (9) The one or more positioning units include a substantially rod-shaped first positioning member, a displacement measuring unit disposed on the other end side of the first positioning member so as to be able to contact the inner peripheral surface of the second cylinder, (8) The axis adjusting device according to (8).

  In the shaft adjustment device according to the invention of (9), the one or more positioning portions can contact the first cylindrical positioning member and the second cylindrical inner peripheral surface on the other end side of the first positioning member. And a displacement measuring unit disposed in the. As a result, the axis can be adjusted while measuring the deviation between the first cylindrical axis and the second cylindrical axis, so that the axis can be adjusted easily and quickly.

  Here, for example, by configuring the positioning part to be extendable and contractible, the gauge part can be automatically brought into contact with the inner peripheral surface of the second cylinder. Moreover, a predetermined measuring instrument can be used as a gauge part, for example, a dial gauge can be illustrated.

  (10) In the case where the second cylindrical member includes a horizontal plane perpendicular to the second cylindrical axis, the one or more positioning portions are held at one end side by the first positioning member and the other end is The shaft adjusting device according to any one of (1) to (9), further including a second positioning member disposed in the vicinity of the horizontal plane or in contact with the horizontal plane.

  In the shaft adjusting device according to the invention of (10), when the second cylindrical member has a horizontal plane perpendicular to the second cylindrical shaft, one or more positioning portions are held at one end by the first positioning member. In addition, a second positioning member is further provided with the other end disposed in the vicinity of or in contact with the horizontal plane. Thereby, the shaft adjusting device of the present invention can level the level simultaneously with the shaft adjustment.

  ADVANTAGE OF THE INVENTION According to this invention, the apparatus for axis adjustment which can perform axis adjustment by simple operation can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of an apparatus for adjusting a shaft according to the present invention. FIG. 2 is a rear view of the shaft adjusting device of the present invention. FIG. 3 is an enlarged view of the second base portion in the shaft adjusting device of the present invention. FIG. 4 is a perspective view of a use state in the shaft adjusting device of the present invention. FIG. 5: is a (a) top view (b) side view explaining the state before arrange | positioning the axis | shaft adjustment apparatus in the 1st usage example of this invention. FIG. 6 is a (a) plan view (b) side view for explaining a state in which the shaft adjusting device in the first usage example of the present invention is arranged. FIG. 7: is a (a) top view (b) side view explaining the state which pressed the contact part in the radial direction in the apparatus for shaft adjustment in the 1st usage example of this invention. FIG. 8: is a (a) top view (b) side view explaining the state which has arrange | positioned the reference | standard part in the axis | shaft adjustment apparatus in the 1st usage example of this invention, and is performing axis | shaft adjustment work. FIG. 9: is (a) top view (b) side view in the water turbine before arrange | positioning the apparatus for shaft adjustment in the 2nd usage example of this invention. FIG. 10: is the (a) top view (b) side view of the state which is adjusting the axis | shaft with the apparatus for axis adjustments in the 2nd usage example of this invention. FIG. 11 is a perspective view of a shaft adjusting device according to a modification of the present invention.

“1” Overall Structure The overall structure of the shaft adjusting apparatus according to the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, the shaft adjusting device 1 of the present invention includes a base portion 2, a reference portion 3, and a positioning portion 4.

  The base portion 2 includes a first horizontal roller 21 that is a first contact portion that contacts a not-shown first cylindrical inner peripheral surface, first vertical rollers 25a and 25b, and a second horizontal roller that is a second contact portion. 23a, 23b and second vertical rollers 27a, 27b.

  The base unit 2 includes a first base member 210, a second base member 220, and a shaft member 230 that connects the first base member 210 and the second base member 220.

  As shown in FIG. 2, the first base member 210 is provided with a first horizontal roller 21 and first vertical rollers 25 a and 25 b which are first contact portions. The first horizontal roller 21 and the first vertical rollers 25a and 25b, which are the first abutting portions, can be in contact with the cylindrical inner peripheral surface of the predetermined cylindrical member that is the first cylindrical member. The one base member 210 is disposed on the end side. When the cylindrical inner peripheral surface of the predetermined cylindrical member is substantially parallel to the cylindrical axis, the first horizontal roller 21 functions as the first contact portion. When the cylindrical inner peripheral surface is a side surface inclined so as to form a predetermined angle with respect to the cylindrical axis, the vertical rollers 25a and 25b can function as the first contact portion.

  As shown in FIG. 2, the second base member 220 is provided with second horizontal rollers 23a and 23b and second vertical rollers 27a and 27b, which are second contact portions. The second horizontal rollers 23a and 23b and the second vertical rollers 27a and 27b, which are the second contact portions, can come into contact with the cylindrical inner peripheral surface of the predetermined cylindrical member which is the first cylindrical member. The second base member 220 is disposed on the end side. When the cylindrical inner peripheral surface of the predetermined cylindrical member is substantially parallel to the cylindrical axis, as in the case of the first base member 210, the second horizontal rollers 23a and 23b serve as the second contact portions. Function. When the cylinder inner peripheral surface is a side surface inclined so as to form a predetermined angle with respect to the cylinder axis, the second vertical rollers 27a and 27b can function as the second contact portion. In the present embodiment, the second horizontal rollers 23a and 23b are configured to be movable in the longitudinal direction.

  As shown in FIGS. 1 and 3, the shaft member 230 is fixed at one end side by a shaft fixing portion 231 formed on the first base member 210, and the other end side is slid by shaft roller members 233a, 233b, 233c. Holds movable.

  Thereby, the distance of the 1st base member 210 and the 2nd base member 220 can be changed suitably. For example, the distance between the first base member 210 and the second base member 220 can be adjusted according to the inner diameter of a predetermined cylindrical member. That is, the base portion 2 includes an adjuster mechanism that can change the distance between the first base member and the second base member 220.

  The adjuster mechanism in this embodiment includes a shaft member 230, a shaft insertion portion 242 that is a shaft guide portion, shaft roller members 233 a, 233 b, 233 c, and a shaft restriction portion 235.

  As shown in FIG. 1, the shaft member 230 is slidably inserted into the shaft insertion portion 242. A predetermined portion of the shaft member 230 inserted through the shaft insertion portion 242 is held so as to be sandwiched between the shaft roller members 233a, 233b, and 233c from a predetermined direction, and the movement in the height direction is restricted by the shaft restriction portion 235. The Thereby, the shaft member 230 is slidably held by the adjuster mechanism in the present embodiment and is guided in a predetermined direction.

  With the adjuster mechanism described above, the distance between the first base member 210 and the second base member 220 can be appropriately changed. In other words, the above-described adjuster mechanism allows the first horizontal roller 21 and the first vertical rollers 25a and 25b, which are the first contact portions, and the second horizontal rollers 23a and 23b and the second vertical roller, which are the second contact portions. The distances from 27a and 27b can be changed as appropriate.

  Here, the shaft insertion portion 242 is configured by forming a hole having a diameter larger than the diameter of the shaft member 230 in a substantially plate-shaped member. Further, the adjuster mechanism can be configured only by the shaft member 230 and the shaft insertion portion 242. In this case, the shaft insertion part 242 can be configured by a predetermined tubular member, for example. It is preferable to configure the shaft insertion portion 242 with a predetermined tubular member because the sliding direction of the shaft member 230 can be regulated and guided in a predetermined direction.

  The shaft member 230 is disposed on the second base member 220 such that the position in the height direction can be adjusted. For example, it is possible to make the shaft member 230 difficult to slide by arranging the shaft restricting portion 235 so as to make strong contact with the shaft member 230, and conversely, not to contact the shaft member 230. Thus, the shaft member 230 can be easily slid. Accordingly, for example, the shaft member 230 is easily slid at the stage of adjusting the distance between the first base member 210 and the second base member 220, and the shaft member 230 is not wobbled or displaced during the axis adjustment operation. It is possible to adjust the axis in a proper state.

  As shown in FIG. 1, a spring member 240 that is a pressing member is disposed on the shaft member 230 along the outer periphery thereof. At one end of the spring member 240, a spring adjustment portion 243 capable of adjusting the position of one end of the spring member 240 is disposed. The movement of the other end of the spring member 240 is restricted by the locking portion 241 fixedly disposed on the second base member 220. Thereby, for example, by moving the spring adjustment portion 243 outward in the longitudinal direction, a pressing force (biasing force) that presses the first contact portion and the second contact portion toward the inner circumferential surface of the spring member 240. ) Can be generated.

  Specifically, the first horizontal roller 21 as the first contact portion and the second horizontal rollers 23a and 23b as the second contact portions are brought into contact with the inner circumferential surface of the predetermined cylindrical member. In this state, the spring adjusting portion 243 is moved outward in the longitudinal direction along the shaft member 230 to compress the length of the spring member 240 to a length shorter than the natural length. As a result, an urging force, which is the above-described pressing force, is generated in the spring member 240, pressing the first base member 210 and the second base member 220 toward the cylindrical inner peripheral surface, and the first contact disposed on them. The first horizontal roller 21 and the second horizontal rollers 23a and 23b that are in contact with each other can be pressed against the inner circumferential surface of the cylinder.

  As shown in FIG. 1, the shaft member 230 is formed with a mounting portion 330 to which a magnet portion 320 described later can be attached and detached. The mounting portion 330 is made of a metal such as iron, and is formed in a plate shape, for example, in order to securely mount the magnet portion 320.

  As shown in FIG. 1, the reference portion 3 includes a magnet portion 320 disposed at one end, and a substantially rod-like reference member 310 formed continuously with the magnet portion 320. The reference part 3 holds a positioning part 4 to be described later and serves as a reference for the position in the radial direction.

  As shown in FIG. 1, the magnet part 320 is disposed at one end of the reference member 310 and is disposed on the upper surface side of the mounting part 330. For example, when the mounting portion 330 is a metal such as iron, the magnet portion 320 is detachable from the mounting portion 330. Here, even if the magnet part 320 is comprised entirely with a magnet, only the lower surface which contact | abuts the mounting part 330 may be comprised with the magnet. The magnet may be a permanent magnet or an electromagnet.

  As shown in FIG. 1, the reference member 310 is a substantially bar-like member and is continuously formed on the upper surface side of the magnet unit 320. The reference member 310 is provided with a length adjusting unit 450 that holds the positioning unit 4 and can adjust the length of the positioning unit 4 in the radial direction. In addition, a height adjusting unit 460 that is formed integrally with the length adjusting unit 450 and that can adjust the position of the positioning member 410 in the height direction that is the cylindrical axis direction is disposed. The length adjusting unit 450 can adjust the length of the positioning unit 4 from the reference portion in the radial direction to a predetermined length and maintain the adjusted predetermined length.

  As shown in FIG. 1, the positioning portion 4 includes a positioning member 410 that is a first positioning member that is held by the reference portion 3 so as to be movable in the height direction that is the cylindrical axis direction, and an outer side in the radial direction of the positioning member 410. A gauge part 420 and a contact part 415 which are displacement measuring parts arranged in The contact portion 415 is formed continuously with the gauge portion 420 and is disposed outside the gauge portion 420 in the radial direction.

  The gauge part 420 and the contact part 415 which are displacement measurement parts are arrange | positioned at the edge part side opposite to the edge part side hold | maintained at the reference | standard part 3 in the positioning part 4. FIG. Since the positioning portion 4 is held by the reference portion 3 so that the length in the radial direction of the second cylindrical space (not shown) can be adjusted, for example, the contact portion 415 in the displacement measuring portion is in the second cylinder (not shown). It can arrange | position so that it may contact in the vicinity of a surrounding surface. In particular, in this embodiment, the contact part 415 is arrange | positioned so that the 2nd cylindrical inner peripheral surface in the predetermined cylindrical member which is a 2nd cylindrical member may be contacted.

  As shown in FIG. 4, the shaft adjusting device 1 includes a first cylinder that includes a first horizontal roller 21 that is a first contact portion (not shown) and second horizontal rollers 23 a and 23 b that are second contact portions. The second cylindrical inner peripheral surface of the second cylindrical member 900 is a contact portion that is in contact with the first cylindrical inner peripheral surface 803 of the cylindrical member 800 and is disposed on the gauge portion 420 that is disposed on the radially outer side of the positioning member 410. It arrange | positions so that 903 may be contacted. In this state, the position of the second cylindrical member 900 is such that the contact of the contact portion 415 with the inner peripheral surface 903 of the second cylinder is made uniform while rotating the shaft adjusting device 1 about the first cylindrical shaft. Adjust. Specifically, the axis can be adjusted by the measurement method in the following use examples.

“2” First Usage Example A shaft adjustment method using the shaft adjustment device 1 will be described with reference to FIGS. 5 to 8.

  As shown in FIGS. 5 to 8, the objects of the axis adjustment in this use example are the first tubular member 810 and the second tubular member 910. The shaft adjustment in this use example is performed by adjusting the first cylindrical shaft (not shown) in the first cylindrical space 817 of the first cylindrical member 810 and the second cylindrical shaft (not shown) in the second cylindrical space 917 of the second cylindrical member 910. Are adjusted by adjusting the relative positions of each other so that they are coaxial.

  Here, the first cylindrical member 810 is formed at one end of the first cylindrical space 817, the first cylindrical inner peripheral surface 815 that forms the first cylindrical space 817, and the first cylindrical inner peripheral surface 815. A first opening 805 continuing to the space 817 is provided. The second cylindrical member 910 is formed at one end of the second cylindrical space 917, the second cylindrical inner peripheral surface 915 that forms the second cylindrical space 917, and the second cylindrical inner peripheral surface 915. A continuous second opening 905 is provided. Then, the second opening 905 is changed to the first opening 805 so that the second tubular member 910 is formed with respect to the first tubular member 810 and the first cylindrical space 817 and the second cylindrical space 917 are continuously formed. In a state where the first cylindrical member 810 faces each other, the displacement between the first cylindrical axis L1 of the first cylindrical space 817 and the second cylindrical axis L2 of the second cylindrical space 917 is adjusted. The shaft adjustment device 1 in this use example is used for shaft adjustment as described later in a state where the first cylindrical space 817 and the second cylindrical space 917 are inserted into a space formed continuously.

  Specifically, as shown in FIG. 5, first, the shaft adjusting device 1 is adjusted so that the length in the longitudinal direction is shorter than the inner diameter D of the first cylindrical member 810. The first member 810 is disposed in the first cylindrical space 817. Specifically, the first horizontal roller 21 that is the first contact portion is brought into contact with the first cylindrical inner peripheral surface 815 in the first cylindrical space 817, and the second horizontal roller 23a that is the second contact portion. The second base member 220 is moved in the direction of the arrow P1 so that 23b can come into contact with the first cylindrical inner peripheral surface 815.

  Next, as shown in FIG. 6, the position of the second base member 220 is adjusted so that the horizontal rollers 23 a and 23 b, which are the second contact portions, are in contact with the first cylindrical inner peripheral surface 815. In this usage example, the second base member 220 is moved in the direction away from the first base member 210, in other words, the shaft adjusting device 1 is moved in the longitudinal direction (the direction of the arrow P2).

  Further, as shown in FIG. 7, the first horizontal roller 21 as the first contact portion and the second horizontal rollers 23a and 23b as the second contact portions are in contact with the first cylindrical inner peripheral surface 815. Thus, the spring adjustment portion 243 is moved along the shaft member 230 in the direction of the arrow P3 that is the direction in which the spring member 240 is compressed. Thereby, it is possible to generate an urging force that is a pressing force for pressing the first horizontal roller 21 and the second horizontal rollers 23a and 23b toward the first cylindrical inner peripheral surface 815 side on the spring member 240. As a result, the first horizontal roller 21 and the second horizontal rollers 23a and 23b are firmly in contact with the first cylindrical inner peripheral surface 815, so that highly accurate shaft adjustment can be performed.

  Then, as shown in FIG. 8, first, the magnet portion 320 in the reference portion 3 is attached to the attachment portion 330 formed in the base portion 2. Next, the radial length in the second cylindrical space 917 of the positioning portion 4 held by the reference member 310 in the reference portion 3 is set so that the contact portion 415 disposed at the tip of the positioning portion 4 has the inner peripheral surface of the second cylinder. It adjusts to the length which contacts 920. Then, in a state where the contact portion 415 is in contact with the second cylindrical inner peripheral surface 915, the shaft adjustment is performed while rotating the shaft adjusting device 1 about the first cylindrical shaft L1.

  Specifically, the shaft adjusting device 1 is rotated in the direction of the arrow P4 in a state where the contact portion 415 disposed in the gauge portion 420 is in contact with the second cylindrical inner peripheral surface 915 of the second cylindrical member 910, The axis is adjusted by adjusting the position of the second cylindrical member 910 in the radial direction so that the value indicated by the gauge portion 420 is constant. Thereby, the position of the 2nd cylindrical member 910 is adjusted so that the 1st cylindrical axis | shaft L1 and the 2nd cylindrical axis | shaft L2 may become coaxial, and an axis adjustment is made.

“3” Second Usage Example The shaft adjustment work in the second usage example will be described with reference to FIGS. 9 and 10.

  As shown in FIG. 9, the casing 950 of the Francis type turbine includes a main body portion 811 that is a first cylindrical member and a lid portion 911 that is a second cylindrical member. In this usage example, the axis adjustment is performed so that the cylindrical axis L1 of the first cylindrical space 817 in the main body portion 811 and the cylindrical axis L2 of the second cylindrical space 917 in the lid portion 911 are coaxial.

  As shown in FIG. 9, the lid portion 911 that is the second cylindrical member is disposed from the upper surface side of the main body portion 811 that is the first cylindrical member. The shaft adjusting device 1 is inserted into the main body portion 811 that is the first tubular member (arrow Q1) and disposed at a predetermined position before the lid portion 911 is disposed. And after arrange | positioning the apparatus 1 for axis adjustments inside the main-body part 811, the cover part 911 which is a 2nd cylindrical member is arrange | positioned from the upper surface side of the main-body part 811.

  Further, the shaft adjusting device 1 includes the mounting portion 330 formed on the base portion 2 and the reference portion 3 after the shaft adjusting device 1 is disposed inside the main body portion 811 that is the first cylindrical member. The magnet part 320 is arrange | positioned so that attachment or detachment is possible. The reference member 310 having one end fixed to the magnet portion 320 is disposed substantially parallel to the first cylindrical axis L1. And the positioning member 410 which is the 1st positioning member hold | maintained at the reference member 310 is adjusted so that the length in the radial direction on the basis of this reference member 310 may become predetermined length. Specifically, the contact portion 415 formed on the gauge portion 420 disposed on the end side of the positioning member 410 is in contact with the second cylindrical inner peripheral surface 920 of the lid portion 911 that is the second cylindrical member. The length of the positioning member 410 in the radial direction is adjusted.

  Then, as shown in FIG. 10, the position of the lid portion 911 is adjusted so that the value indicated by the gauge portion 420 is constant while rotating the axis adjusting device 1 about the first cylindrical axis L1 (in the direction of the arrow Q2). Axis adjustment can be performed by adjusting. The procedure for installing the shaft adjustment device 1 and the shaft adjustment using the shaft adjustment device 1 can be performed by the same procedure as that described in the first usage example.

  Here, in this usage example, the first cylindrical inner peripheral surface 820 of the first cylindrical space 817 in the main body 811 which is the first cylindrical member is inclined so as to form a predetermined angle with respect to the first cylindrical axis L1. On the side. Even in this case, the shaft adjusting device 1 according to the present invention can adjust the shaft suitably.

  Further, as shown in FIG. 10B, the positioning member 410 can be arranged so as to form a predetermined angle with respect to the first cylindrical axis L1. Even when the positioning member 410 is arranged in this way, the length of the positioning member 410 in the radial direction can be kept constant, so that the axis can be adjusted appropriately.

“4” Modified Example With reference to FIG. 11, a shaft adjusting apparatus 1 </ b> A according to a modified example will be described.

  As shown in FIG. 11, the shaft adjusting device 1A includes positioning portions 4A and 4B. The positioning unit 4B further includes a positioning unit 4C. In other words, the shaft adjustment device 1A includes a plurality of positioning members that extend in the longitudinal direction, which are first positioning members, and a positioning portion that extends in the height direction, which is a second positioning member.

  Specifically, the shaft adjustment apparatus 1A includes positioning members 410A and 410B that are first positioning members and a positioning member 410C that is a second positioning member. The gauge members 420A, 420B, and 420C are disposed on the positioning members 410A, 410B, and 410C, respectively. Further, contact portions 415A, 415B, and 415C are disposed on the gauge portions 420A, 420B, and 420C, respectively.

  As illustrated in FIG. 11, the shaft adjustment device 1A includes positioning members 410A and 410B that are first positioning members. The positioning members 410A and 410B are held by the reference member 310 in the reference portion 3A so that the position in the height direction can be adjusted. Thereby, for example, the axis adjustment of the predetermined cylindrical member which is the second cylindrical member is performed by the positioning member 410A, and the axis adjustment of the cylindrical member different from the second cylindrical member is simultaneously performed by the positioning member 410C. Can do. That is, according to the shaft adjusting apparatus 1A in the present modification, shaft adjustment in a plurality of cylindrical members can be performed simultaneously.

  Furthermore, as shown in FIG. 11, the shaft adjustment device 1 </ b> A includes a positioning member 410 </ b> C that is a second positioning member. The positioning member 410C as the second positioning member is held by the positioning member 410B as the first positioning member so that the position in the radial direction can be adjusted. Thereby, for example, when the predetermined cylindrical member which is the second cylindrical member has a horizontal portion perpendicular to the second cylindrical axis L2 in the cylindrical member, the positioning member 410C can level out.

  Specifically, the length and position of the positioning member 410C in the first cylindrical axis direction are adjusted so that the contact portion 415C contacts the horizontal portion, and in the adjusted state, the shaft adjusting device 1A is not shown in the first cylinder (not shown). Rotate around the axis. And it can level out by adjusting the inclination with respect to the 1st cylindrical axis | shaft of a 2nd cylindrical member so that the value which the gauge part 420C shows may become constant similarly to the usage examples 1 and 2. When leveling in this way, the shaft adjusting device 1A needs to be arranged so that the base portion 2 is perpendicular to a first cylindrical shaft (not shown).

  As described above, the shaft adjusting device 1A according to the present modification can adjust the shafts of a plurality of cylindrical members and level the shaft.

It is a perspective view in the apparatus for axis adjustments of this invention. It is a rear view in the apparatus for axis adjustments of this invention. It is an enlarged view of the 2nd base part in the apparatus for axis adjustments of this invention. It is a perspective view of the use condition in the apparatus for axis adjustments of this invention. It is the top view and side view explaining the state before arrange | positioning the apparatus for axis adjustments in the 1st usage example of this invention. It is the top view and side view explaining the state which has arrange | positioned the apparatus for axis adjustments in the 1st usage example of this invention. It is the top view and side view explaining the state which pressed the contact part in the radial direction in the apparatus for shaft adjustment in the 1st usage example of this invention. It is the top view and side view explaining the state which has arrange | positioned the reference | standard part in the apparatus for shaft adjustment in the 1st usage example of this invention, and is performing shaft adjustment work. It is the top view and side view in a water turbine before arrange | positioning the apparatus for shaft adjustment in the 2nd usage example of this invention. It is the top view and side view of the state which are adjusting the axis | shaft with the apparatus for axis adjustments in the 2nd usage example of this invention. It is a perspective view of the apparatus for axis adjustments in the modification of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Axis adjustment apparatus 2 Base part 3 Reference | standard part 4 Positioning part 21 1st horizontal roller 23a 2nd horizontal roller 23b 2nd horizontal roller 210 1st base member 220 2nd base member 230 Shaft member 242 Shaft insertion part 310 Reference member 410 Positioning member 415 Contact portion 420 Gauge portion

Claims (8)

A first cylindrical member having a first cylindrical inner circumferential surface forming a first cylindrical space, a first cylindrical member formed at one end of the first cylindrical inner circumferential surface and having a first opening continuing to the first cylindrical space; and a second cylindrical space And a second opening formed at one end of the inner peripheral surface of the second cylinder and continuing to the second cylindrical space, wherein the first cylindrical space and the second cylindrical space are A second cylindrical member disposed on the first cylindrical member with the second opening facing the first opening so as to form a continuous space; and a first cylindrical axis of the first cylindrical space A shaft adjusting device for adjusting a deviation of the second cylindrical space from the second cylindrical shaft,
A first abutting portion and a second abutting portion that abut on the inner peripheral surface of the first cylinder so as to be movable in a circumferential direction of the inner peripheral surface of the first cylinder;
An adjuster mechanism that holds the first contact portion and the second contact portion and that can adjust the distance between the first contact portion and the second contact portion, and a mounting made of a predetermined metal. a base portion having a part,
A reference portion having a substantially rod-like reference member, and a magnet portion disposed at one end of the reference member and detachably disposed on the mounting portion of the base portion;
One or more positioning parts with one end side held by the reference part and the other end arranged in the second cylindrical space.   The shaft adjusting device according to claim 1, wherein the first contact portion and the second contact portion are substantially cylindrical or substantially spherical roller members. The base part further includes a first base member that holds the first contact part, and a second base member that holds the second contact part,
The adjuster mechanism is disposed on at least one of the shaft member that connects the first base member and the second base member, and the first base member or the second base member, and slidably holds the shaft member. The shaft adjusting device according to claim 1, further comprising: a shaft guide portion that guides the shaft member in a predetermined direction.   The shaft adjusting device according to claim 3, wherein the base portion further includes a pressing member that presses the first base member and the second base member toward the inner peripheral surface of the first cylinder. The one or more positioning portions, the reference portion, for the axial adjustment of any one of claims 1 to 4 which is adjustably holding the length in the radial direction of the second cylindrical space from the reference unit apparatus. The one or more positioning portions, the vicinity of the other end of the second cylindrical inner peripheral surface of the positioning unit, or from claim 1, which is placed in contact with the second cylindrical inner peripheral surface of 5 The shaft adjusting device according to any one of the above. The one or more positioning units include a substantially rod-shaped first positioning member, and a displacement measuring unit disposed on the other end side of the first positioning member so as to be able to contact the inner peripheral surface of the second cylinder. Item 7. The shaft adjusting device according to Item 6 . In the case where the second cylindrical member includes a horizontal plane perpendicular to the second cylindrical axis, the one or more positioning portions are held at one end side by the first positioning member and the other end of the horizontal plane is the horizontal plane. The shaft adjusting device according to claim 7 , further comprising a second positioning member disposed near or in contact with the horizontal plane.

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