JP2018021666A - Eccentric pin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new eccentric pin capable of easily aligning components along an axis with high reliability.SOLUTION: An eccentric pin 12 for aligning a first component 10 to a second component 11, has a first eccentric pin portion 13 cooperating with the first component 10, and a second eccentric pin portion 14 eccentric to the first eccentric pin portion 13, and cooperating with the second component 11. The first eccentric pin portion 13 and the second eccentric pin portion 14 have cross-sectional shapes with angular portions, an angular cross-sectional shape 15 of the first eccentric pin portion 13 is eccentrically offset in a first eccentric direction to an angular cross-sectional shape 16 of the second eccentric pin portion 14 by a first amount, and eccentrically offset in a second eccentric direction orthogonal to the first eccentric direction by a second amount different from the first amount.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an eccentric pin.

  The parts are adjusted to be aligned with each other by the eccentric pin. An actually known eccentric pin has a plurality of eccentric pin portions that are eccentrically positioned with respect to each other. The first eccentric pin portion cooperates with the first part, and the second eccentric pin portion cooperates with the second part. The actually known eccentric pins are formed such that the eccentric pin portions that are eccentric to each other have a circular cross section. Actually known eccentric pins require special tools to handle and are usually not versatile.

  From Patent Document 1, an eccentric pin having an eccentric pin portion having a circular cross section and placed in an eccentric position is known.

German Patent No. 10 2014 222 445

  In view of the above, an object of the present invention is to provide a novel eccentric pin in which components are aligned and adjusted with ease and high reliability.

 This problem is solved by the eccentric pin according to claim 1.

 According to the present invention, each of the first eccentric pin portion and the second eccentric pin portion has an angled cross-sectional shape, and the angled cross-sectional shape of the first eccentric pin portion relative to the angled cross-sectional shape of the second eccentric pin portion is The first eccentric direction is offset by a first amount (dimension), and the second eccentric direction orthogonal to the first eccentric direction is offset by a second amount different from the first amount. Yes.

  The present invention proposes that the eccentric pin and the eccentric pin portion of the eccentric pin have a corner cross-sectional shape. These angled cross-sectional shapes of the eccentric pin portions are offset from each other by different amounts (dimensions) in two orthogonal directions orthogonal to each other. By such an eccentric pin, alignment of parts (alignment adjustment of the position with respect to the axis) can be easily and highly reliable without a special tool. This eccentric pin according to the present invention is highly versatile and can be stored in large quantities.

  In a further advantageous form of the invention, the first eccentric pin part and the second eccentric pin part each have a polygonal cross section, preferably a regular octagon. When the eccentric pin portion is a regular polygon, particularly a regular octagon, the alignment of the components with each other is particularly advantageous.

  In a further advantageous configuration, the radius of the circle passing through each corner of the cross-sectional shape of the first eccentric pin portion is different from the radius of the circle passing through each corner of the cross-sectional shape of the second eccentric pin portion. In particular, this feature is preferable in realizing easy and reliable alignment of parts.

  In a further advantageous form, the eccentric pin comprises a bore extending through the first eccentric pin and the second eccentric pin. The eccentric pin can be fastened to one of the parts to be aligned by a mounting screw extending into the bore, and the other part is attached to the eccentric pin. The eccentric pin can be fastened to one of the parts to be aligned via a mounting screw that cooperates with the bore. Each other part is attached to an eccentric pin.

  The invention further relates to a device comprising a first part, a second part that is aligned with respect to the first part, and an eccentric pin according to the invention.

  Further preferred embodiments of the invention are described in the dependent claims and the following description. Hereinafter, non-limiting exemplary embodiments of the present invention will be described in detail with reference to the drawings.

It is sectional drawing which shows the 1st component, the 2nd component alignment-adjusted with respect to this 1st component, and the structure arrangement | positioning of the eccentric pin by this invention. FIG. 2 is a cross-sectional view showing a configuration of a first part, a second part whose alignment is adjusted with respect to the first part, and an eccentric pin according to the present invention shifted by 90 ° with respect to FIG. 1. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1. It is a side view of the eccentric pin by this invention. It is the figure which looked at the eccentric pin shown in FIG. 5 from the direction of arrow VI. It is the figure which showed the eccentric pin in several different positions.

  The present invention relates to an eccentric pin for performing alignment adjustment (alignment adjustment of a position with respect to an axis) between components.

  The present invention also relates to the arrangement or configuration of a plurality of components that are aligned with each other and at least one eccentric pin.

  1 to 4 show different sections of the arrangement of two parts that are aligned with each other and the eccentric pin according to the invention. FIG. 1 shows a first part 10, a second part 11 that is aligned with the first part 10, and an eccentric pin 12 that is used for this alignment adjustment. The first part 10 may be, for example, a turbine housing of a constant flow device, and the second part 11 may be a part of a built-in part such as a guide blade carrier or a seal member. 5 and 6 both show only the eccentric pin 12.

  The eccentric pin 12 includes two eccentric pin portions 13 and 14. The first eccentric pin portion 13 cooperates with the first component 10, and the second eccentric pin portion 14 cooperates with the second component 11. These two eccentric pin portions 13 and 14 are located eccentric to each other. These two eccentric pin portions 13 and 14 best shown in FIG. 6 have a cornered shape. The shape 15 of the first eccentric pin portion 13 and the shape 16 of the second eccentric pin portion 14 are both polygonal here, and in this embodiment are regular polygons, particularly regular octagons. A regular polygon is a polygon whose sides and interior angles are all the same.

  Accordingly, the regular octagonal cross-sectional shape 15 of the first eccentric pin portion 13 has eight corners 17 located on the first circle. Similarly, the cross-sectional shape 16 of the second eccentric pin portion 14 has eight corners 18 located on the second circle. The radii of these two circles are different. The radius of the circle where the octagonal corners 18 of the second eccentric pin portion 14 are located is smaller than the radius of the circle where the corners 17 of the cross-sectional shape 15 of the first eccentric pin portion 13 are located.

  The cross-sectional shapes 15 and 16 of the two eccentric pin portions 13 and 14 shown as regular octagons in the embodiment are offset by different dimensions in two eccentric directions orthogonal to each other. Here, when the eccentric pin 12 is rotated by 45 °, the alignment of the components 10 and 11 gradually changes as shown in FIG. The cross-sections of the eccentric pin portions 13 and 14 are regular octagons, and these regular octagons are offset by different dimensions in two eccentric directions orthogonal to each other. Therefore, when the eccentric pin 12 is rotated by 45 °, The alignment of the two parts made possible in this way varies by 45 ° in the direction of the arrow 19 with respect to the zero (0) line 20 in FIG.

  Further, as can be seen from FIGS. 1, 2, 5, and 6, the eccentric pin 12 has a bore 21 that extends through both the eccentric pin portions 13, 14. The mounting screw 22 cooperates. As already described, in the mutual alignment of the two parts 10 and 11 by the eccentric pin 12, the first eccentric pin part 13 cooperates with the first part 10 and the second eccentric pin part 14. Cooperates with the second part 11, but also cooperates with the corresponding channels 23, 24 in each part 10, 11. These channels 23 and 24 are elongated holes here.

  The channel 23 in the first part 10 cooperating with the first eccentric pin part 13 of the eccentric pin 12 causes the first eccentric pin part 13 to have no (dimensional) play in the first direction, or In a second direction orthogonal to the first direction, the play is received so that there is almost no play, and there is a clear play between the first eccentric pin portion 13 and the channel 23 of the first part 10. ,It is configured.

  The channel 24 of the second part 11 has a configuration similar to the above, that is, the channel 24 is located between the second eccentric pin portion 14 of the eccentric pin 12 and the channel 24 of the second part 11 in the first direction. The second eccentric pin portion 14 of the eccentric pin 12 is received so that there is no play or almost no play and there is a clear play in the second direction orthogonal to the first direction.

  The first direction in which the channels 23 and 24 receive the eccentric pin portions 14 without play is a direction in which the components 10 and 11 are aligned with each other. The second direction in which the channels 23 and 24 receive the eccentric pin portions 14 via play is a direction orthogonal to the direction in which the components 10 and 11 are aligned with each other. If the alignment of the parts 10 and 11 occurs in the horizontal direction, the first direction is the horizontal direction, and the channels 23 and 24 are preferably provided at the 6 o'clock position and / or the 12 o'clock position of the part 10. If alignment occurs in the vertical direction, the first direction is vertical and the channels 23, 24 are preferably provided at the 3 o'clock and / or 9 o'clock positions of the parts 10, 11.

  In order to align the two parts 10, 11 with each other, in the embodiment shown in FIGS. 1 to 4, the eccentric pin 12 is moved to one of the positions shown in FIG. 7 by the mounting screw 22 of the second part 11. The position, that is, one of the 45 ° steps shown in FIG. 7 or each 45 ° step position is taken. In that position, the second eccentric pin portion 14 of the eccentric pin 12 is received in the channel 24 of the second part 11. Subsequently, the two parts are received loosely from each other. That is, preferably, the second part 11 is loosely attached to the first part 10 via the eccentric pin 12 attached to the first part 10 or each eccentric pin 12, that is, the first part of the eccentric pin 12. One eccentric pin portion 13 is introduced into the corresponding channel 23 of the first component 10.

  However, contrary to the above, the first part 10 is fixed to the second part 11 by introducing the first eccentric pin portion 13 into the corresponding recess or each channel 23 of the first part 10. It is also possible to attach loosely to the or each eccentric pin 12.

  In the embodiment shown in FIGS. 1 to 4, the mounting screw 22 extends from the first eccentric pin portion 13 and reaches the second eccentric pin portion 14 and the second component 11. In order to attach the eccentric pin 12 to the first component 10 and loosely attach the second component 11 to the second eccentric pin portion 14 of each eccentric pin 12, a mounting screw 22 is connected from the second eccentric pin portion 14 to the first eccentricity. It is also possible to adopt a configuration in which the pins 13 and the first component 10 are extended in the opposite direction.

  In the illustrated embodiment in which the eccentric pin portions 13 and 14 of the eccentric pin portion 12 are both regular octagons and are eccentrically offset in two directions orthogonal to each other, the alignment adjustment of the two parts 10 and 11 with each other is performed. Can be realized in a particularly advantageous manner. If the regular octagon is offset 0.11 mm in the first eccentric direction and 0.5 mm in the second eccentric direction, both the eccentric pins 12 are rotated by 45 ° as shown in FIG. The parts are aligned in steps of ± 011 mm, ± 0, 276 mm, ± 0.431 mm, and ± 0.5 mm. At the 0 ° position of the eccentric pin 12 shown in FIG. 7, the alignment occurs −0.11 mm above the zero (0) line 20, and similarly at the 45 ° position +0.276 mm above the zero line and at the 90 ° position. + 0.5mm above the zero line, + 0.431mm above the zero line at 135 °, + 0.11mm above the zero line at 180 °, -0.276mm above the zero line at 225 °, zero at 270 ° Alignment occurs at -0.5mm above the line and at -3151 ° above the zero line at -0.431mm.

  Below the zero line 20, the sign of the progressive alignment with respect to the zero line 20 changes at each position of the eccentric pin 12 that quantitatively changes by 45 °.

  Channels 23 and 24 are preferably of so-called H7 quality.

  In order to adjust the alignment of the two components 10 and 11, one eccentric pin 12 as described above may be used. By selecting one of the positions of the eccentric pin 12 with respect to the zero line 20 shown in FIG. 7, that is, one of a plurality of alignments of the eccentric pin 12 shown in FIG. Depending on one, alignment occurs.

10, 11 Parts 12 Eccentric pin 13, 14 Eccentric pin portion 15, 16 Cross-sectional shape 17, 18 Square 19 Alignment 20 Zero line 21 Bore 22 Mounting screw 23, 24 Channel

Claims (14)

An eccentric pin (12) for aligning the first part (10) with respect to the second part (11),
A first eccentric pin portion (13) cooperating with the first component (10);
A second eccentric pin portion (14) that is eccentric with respect to the first eccentric pin portion (13) and cooperates with the second component (11);
Each of the first eccentric pin portion (13) and the second eccentric pin portion (14) has a cross-sectional shape having a corner,
The angled cross-sectional shape (15) of the first eccentric pin portion (13) is offset by a first amount in the first eccentric direction with respect to the angled cross-sectional shape (16) of the second eccentric pin portion (14). And in a second eccentric direction orthogonal to the first eccentric direction, the second offset direction is eccentrically offset by a second amount different from the first amount.
An eccentric pin characterized by that.   The eccentric pin according to claim 1, wherein the first eccentric pin portion (13) and the second eccentric pin portion (14) are each formed to have a polygonal cross section.   The eccentric pin according to claim 1 or 2, wherein the first eccentric pin portion (13) and the second eccentric pin portion (14) are each formed to have an octagonal cross section.   The eccentric pin according to any one of claims 1 to 3, wherein the first eccentric pin portion (13) and the second eccentric pin portion (14) are each formed in a regular polygonal cross section, preferably a regular octagonal cross section. An eccentric pin.   The eccentric pin according to any one of claims 1 to 4, wherein a circle passing through a plurality of corners (17) of the cross-sectional shape (15) of the first eccentric pin portion (13) and the second eccentric pin An eccentric pin having a different radius from a circle passing through the plurality of corners (18) of the cross-sectional shape (16) of the portion (14). The eccentric pin according to any one of claims 1 to 5, further comprising a bore (21) extending through the first eccentric pin portion (13) and the second eccentric pin portion (14). And
Through the bore, an eccentric pin is attached to one of the parts (10, 11) to be aligned by means of a mounting screw (22) passing through the bore;
An eccentric pin in which the other of the components (11, 12) is attached to the eccentric pin.   A first part (10), a second part (11) aligned with respect to the first part (10), an eccentric pin (12) according to any one of claims 1 to 6, A device comprising:   8. The device according to claim 7, wherein each eccentric pin (12) is attached to the first part (10) or the second part (11) via a mounting screw (22).   The device according to claim 8, wherein each eccentric pin (12) is attached to the first component (10) via the first eccentric pin portion (13), and the second component (11) is: A device that is loosely attached to the second eccentric pin portion (14) of each eccentric pin (12).   The device according to claim 8, wherein each eccentric pin (12) is attached to the second component (11) via the second eccentric pin portion (14), and the first component (10) is: A device that is loosely attached to the second eccentric pin portion (13) of each eccentric pin (12).   11. The device according to any one of claims 7 to 10, wherein the first part (10) receives at least one first eccentric pin portion (13) of each eccentric pin (12). A channel (23) or at least one first slot, and the second component (11) receives at least one second eccentric pin portion (14) of each eccentric pin (12). A device comprising two channels (24) or at least one second slot. The apparatus of claim 11.
The dimensions of each of the first channels (23) or each of the first elongated holes are such that each of the first channels (23) or each of the first elongated holes corresponds to the first eccentric pin portion (13). The eccentric pin portion (13) is set to receive so that there is no or almost no play in the first direction, while there is play in the second direction orthogonal to the first direction; and
The size of each second channel (24) or each second elongated hole is such that each second channel (24) or each second elongated hole is second with respect to the second eccentric pin portion (14). The device is configured to receive the eccentric pin portion (14) so that there is no or almost no play in the first direction, while there is play in the second direction orthogonal to the first direction.   13. The device according to claim 12, wherein the first direction in which both the first and second channels (23, 24) receive each second eccentric pin portion (14) without play or substantially without play is the first direction. Device in which both the first and second parts (10, 11) are aligned and oriented with respect to each other.   14. The device according to claim 12 or 13, wherein the first and second channels (23, 24) receive the second eccentric pin portions (14) with play in the first and second directions. A device in which the two parts (10, 11) are in a direction perpendicular to the direction in which they are aligned.