JP6101829B1 - Shear plate mounting structure and shear plate mounting method - Google Patents

Abstract

To provide a shear plate mounting structure and a shear plate mounting method capable of suppressing the formation of a gap between a support member and a shear plate. After the communication path is welded and fixed to the pedestal P by the communication path welding process, the back surface 1b of the shear plate 1 is welded and fixed to the pedestal P by the back surface welding process, so that welding in the previous communication path welding process is performed. By using the portion (coupling between the communication path 2 and the pedestal P), the inclination of the shear plate 1 due to the shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the pedestal P) in the subsequent back surface welding process Warpage of the shear plate 1 due to welding strain can be suppressed. As a result, the formation of a gap between the support member S and the shear plate 1 can be suppressed. [Selection] Figure 3

Description

  TECHNICAL FIELD The present invention relates to a shear plate mounting structure and a shear plate mounting method, and more particularly to a shear plate mounting structure and a shear plate mounting method capable of suppressing the formation of a gap between a support member and a shear plate. It is.

  For example, a structure is known in which a member (support member) for supporting a vibration generator such as a motor or an engine or a structure such as a sluice is fastened and fixed to a pedestal with bolts. In such a structure, a shearing force is applied to the support member, which may cause the bolt to break. Therefore, the back surface of the shear plate with the front surface (contact surface) in contact with the support member is welded and fixed to the pedestal, and a shearing force is applied to the shear plate (Patent Document 1).

Japanese Utility Model Publication No. 06-009354 (for example, FIG. 5)

  However, in the above-described conventional technique, when the back surface of the shear plate is welded, the shear plate is inclined due to shrinkage when the welded portion is solidified, or the shear plate is warped due to welding strain, and the gap between the support member and the support member. There was a problem that a gap was formed. The strength of the shear plate depends on the shearing force of the welded portion. If a gap is formed between the support member and the shear plate, the shearing force cannot be received, so that sufficient strength cannot be exhibited.

  The present invention has been made to solve the above-described problems, and provides a shear plate mounting structure and a shear plate mounting method capable of suppressing formation of a gap between a support member and a shear plate. The purpose is to do.

In order to achieve this object, the shear plate mounting structure according to claim 1 includes a shear plate formed in a rectangular parallelepiped shape, and a contact surface along the longitudinal direction of the shear plate is fastened and fixed to the pedestal. The back surface which is in contact with the side surface of the support member and which is the opposite surface of the contact surface is welded and fixed to the pedestal. The shear plate has one end opened at the bottom and the other end A communication path that is open to an outer surface excluding the bottom surface, and the communication path is formed as a through-hole penetrating between the bottom surface and an upper surface that is the opposite surface of the bottom surface; The at least one end of the communication path is welded and fixed to the pedestal.

The shear plate mounting structure according to claim 2 includes a shear plate formed in a rectangular parallelepiped shape, and a contact surface along a longitudinal direction of the shear plate is in contact with a side surface of the support member fastened and fixed to the base. In addition, a back surface opposite to the contact surface is fixed by welding to the pedestal, and one end of the shear plate is opened on the bottom surface, and the other end is opened on the outer surface except the bottom surface. includes a communication passage that, the pair of side surfaces connecting the abutment surface and the back surface is welded to said base, said communication passage is a through hole penetrating between the top surface serving as the bottom surface and the opposite surface of the bottom And a plurality are arranged along the contact surface and the back surface, and at least one end of the communication passages is fixed to the pedestal by welding , and is located at the outermost side of the plurality of communication passages. Communication path and side Spacing between is set to a larger interval than the interval between each other adjacent ones of the plurality of the communication passages.

The shear plate mounting structure according to claim 3 includes a shear plate formed in a rectangular parallelepiped shape, and a contact surface along a longitudinal direction of the shear plate is in contact with a side surface of the support member fastened and fixed to the base. Rutotomoni, wherein are those opposite surface to become the back of the contact surface is welded to said base, said shear plate, communication path other end Ru is opened in the back one end to the bottom surface is opened wherein the communication path is, the bottom surface is recessed along the widthwise direction of the shear plate is formed as a groove that will be extended to, Rukoto least one end of the communication passage is welded to the pedestal Shear plate mounting structure characterized by

The shear plate mounting structure according to claim 4 includes a shear plate formed in a rectangular parallelepiped shape, and a contact surface along a longitudinal direction of the shear plate is in contact with a side surface of the support member fastened and fixed to the pedestal. In addition, a back surface opposite to the contact surface is welded and fixed to the pedestal. The shear plate has one end opened at the bottom and the other end connected to the contact surface and the back surface. includes a communication passage that will be opened in side surfaces, said communication passage, said bottom being recessed along the longitudinal direction of the shear plate is formed as a groove that will be extended, at least one end the pedestal of the communication passage that have been welded and fixed to.

The shear plate mounting method according to claim 5, wherein a contact surface along a longitudinal direction of the shear plate formed in a rectangular parallelepiped shape is in contact with a side surface of a support member fastened and fixed to a pedestal, and the contact A method of attaching a shear plate having a rear surface opposite to a surface fixed by welding to the pedestal, wherein the shear is provided with a communication path having one end opened to a bottom surface and the other end opened to an outer surface excluding the bottom surface. An installation step of installing the plate in a state where the bottom surface is in contact with the pedestal, and a communication passage welding for fixing at least one end of the communication passage of the shear plate installed on the pedestal by the installation step to the pedestal comprising a step, a rear welding process that at least one end of the communication passage by the communication passage welding process is welded to the rear of said shear plate is welded to the pedestal to the pedestal, the The communication passage, Ru is disposed at a position closer to the abutment surface than an intermediate position between at least the one end of the rear said abutment surface and.

According to claim 1, the mounting structure of the shear plate according to 4, shear plate has one end on its bottom surface is provided with a communication passage and the other end with the opening is opened to the outer surface except the bottom surface of the communicating path At least one end is fixed by welding to the pedestal. Therefore, after fixing one end of the communication path to the pedestal by welding and fixing the back of the shear plate to the pedestal, the shear plate is inclined due to shrinkage when the welded portion is solidified, or warped due to welding distortion. Can be prevented from occurring. As a result, the formation of a gap between the support member and the shear plate can be suppressed.

  The outer surface excluding the bottom surface of the shear plate means five surfaces of the six rectangular parallelepiped shapes excluding the bottom surface. Thus, the outer surface includes a contact surface and a back surface. The other end of the communication path only needs to be opened on at least one of the five surfaces.

According to the mounting structure of the shear plate as claimed in claim 1 or 2, communication passage, because it is formed as a through hole penetrating between the upper surface as a bottom surface opposite the bottom surface, it was placed on a pedestal A welding torch can be inserted into the communication path from the upper surface of the shear plate to perform a welding operation. Therefore, the workability of such welding work can be improved. In addition, since the communication path is formed as a through hole that penetrates the bottom surface and the upper surface, the weld metal can be retained in the communication path. Therefore, it can suppress that a weld metal protrudes to the upper surface (mounting surface of a support member) of a base, and the contact surface (surface contact | abutted to the side surface of a support member) of a shear plate. Accordingly, it is possible to avoid the necessity of removing the protruding weld metal.

According to the mounting structure according to claim 1, wherein the shear plate, communication passage, since it is arranged at a position closer to the abutment surface than the intermediate position between the abutment surface and the back surface, one end of the communication passage on a pedestal When welding and fixing the back side of the shear plate to the pedestal after welding is fixed, increase the resistance against shear plate inclination due to solidification shrinkage and shear plate warpage due to welding distortion at the welded portion between the back side and the pedestal. be able to. As a result, the formation of a gap between the support member and the shear plate can be suppressed.

Multiple According to the mounting structure according to claim 2, wherein the shear plate, sheet A plate has a pair of side surfaces connecting the abutment surface and the back surface is welded to the pedestal, the communication passage is abutting surface and along the back Are arranged, and the interval between the outermost communication passage and the side surface among the plurality of communication passages is set to be larger than the interval between adjacent ones of the plurality of communication passages. Therefore, the number of communication passages formed can be reduced.

  That is, the resistance against warpage due to shrinkage or welding strain at the time of solidification in the welded portion between the back surface and the pedestal is greater on the side surface than on the communication channel, so the outermost communication channel is located between the side surface and the side surface. By widening the interval, it is possible to suppress redundant use of these drags, and to reduce the number of communication paths formed accordingly.

According to the mounting structure of the shear plate according to claim 3 , the communication path is formed as a groove having one end opened at the bottom surface and the other end opened at the back surface and recessed at the bottom surface. The welding area between the communication path and the pedestal can be secured. Accordingly, the resistance against warpage due to shrinkage or welding distortion during solidification in the welded portion between the back surface and the pedestal can be increased accordingly. As a result, the formation of a gap between the support member and the shear plate can be suppressed.

  In addition, since the other end of the communication path is opened to the back surface, even if the weld metal protrudes from the communication path, the protruding direction can be opposite to the support member. That is, since it does not protrude from the upper surface of the pedestal that becomes the mounting surface of the support member or the contact surface of the shear plate (the surface that contacts the side surface of the support member), it is not necessary to remove the protruding weld metal. .

According to the mounting structure according to claim 4, wherein the shear plate, sheet A plate, side surfaces connecting the abutment surface and the back surface is welded to the pedestal, communication passage and the other end with one end is opened in the bottom surface Since it is formed as a groove that is open on the side surface and recessed on the bottom surface, a welding area between the communication path of the shear plate and the pedestal can be secured. Therefore, the resistance against warpage caused by shrinkage or welding distortion at the time of solidification in the welded portion between the back surface and the pedestal can be increased, and as a result, a gap is formed between the support member and the shear plate. Can be suppressed.

According to the mounting method of the shear plate according to claim 5 , a state in which the bottom surface is brought into contact with the pedestal, the shear plate including a communication path having one end opened on the bottom surface and the other end opened on the outer surface excluding the bottom surface. Installation process, a communication path welding process in which at least one end of the communication path of the shear plate installed on the pedestal is welded and fixed to the pedestal, and at least one end of the communication path is welded to the pedestal by the communication path welding process. A back surface welding step of welding and fixing the back surface of the shear plate to the pedestal, so that the shear plate is inclined due to shrinkage at the time of solidification of the welded portion (welded portion between the back surface and the pedestal) in the back surface welding step. Warpage of the shear plate due to welding strain can be suppressed. As a result, the formation of a gap between the support member and the shear plate can be suppressed.

  That is, after at least one end of the communication path is welded and fixed to the pedestal by the communication path welding process, the back surface of the shear plate is welded and fixed to the pedestal by the back surface welding process. Of the plate and the warp of the shear plate due to the inclination of the shear plate due to shrinkage during solidification of the welded part (the welded part between the back and the pedestal) in the subsequent back surface welding process. Can be suppressed. As a result, the formation of a gap between the support member and the shear plate can be suppressed.

(A) is a top view of the mounting structure of the shear plate in 1st Embodiment of this invention, (b) is a side view of the mounting structure of the shear plate. (A) is a top view of the shear plate, (b) is a cross-sectional view of the shear plate taken along line IIb-IIb in FIG. 2 (a), and (c) is a direction IIc in FIG. 2 (a). It is a side view of the shear plate in vision. (A) to (d) are top views of the shear plate. (A) is a top view of the shear plate in 2nd Embodiment, (b) is sectional drawing of the shear plate in the IVb-IVb line | wire of FIG. 4 (a), (c) is FIG. It is sectional drawing of the shear plate in the IVc-IVc line | wire of a). (A), (c), (e) and (g) are top views of the shear plate, and (b), (d), (f) and (h) are sectional views of the shear plate. (A) is a top view of the shear plate in 3rd Embodiment, (b) is sectional drawing of the shear plate in the VIb-VIb line | wire of Fig.6 (a), (c) is FIG. It is sectional drawing of the shear plate in the VIc-VIc line of a).

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1A is a top view of the mounting structure of the shear plate 1 according to the first embodiment of the present invention, and FIG. 1B is a side view of the mounting structure of the shear plate 1. In addition, in FIG. 1, the to-be-supported body M is typically illustrated using a dashed-two dotted line.

  As shown in FIG. 1, a support member S that supports the supported body M is fastened and fixed to the base P by a plurality of bolts B. The supported body M is a vibration generating body such as a motor or an engine or a structure such as a sluice, and a shearing force is applied to the support member S by the vibration of the vibration generating body or the load received by the structure. Therefore, the bolt B of the support member S may be damaged by receiving a shearing force.

  In this case, a shear plate 1 welded and fixed to the base P is brought into contact with the support member S. The shear plate 1 is in contact with the back surface 1b which is the surface opposite to the contact surface 1a in a state where the contact surface 1a is in contact with the side surface of the support member S (the right side surface in FIG. 1 (a)). A side surface 1c connecting the surface 1a and the back surface 1b is fixed to the base P by welding. Thereby, when the shear plate 1 bears the shear force received from the supported body M, the shear force acting on the bolt B of the support member S can be reduced, and the breakage of the bolt B can be suppressed.

  Next, the detailed configuration of the shear plate 1 will be described with reference to FIG. 2 (a) is a top view of the shear plate 1, FIG. 2 (b) is a sectional view of the shear plate 1 taken along the line IIb-IIb in FIG. 2 (a), and FIG. It is a side view of the shear plate 1 in IIc direction view of Fig.2 (a).

  As shown in FIG. 2, the shear plate 1 includes a contact surface 1a that contacts the support member S (see FIG. 1), a back surface 1b opposite to the contact surface 1a, the contact surface 1a, From a steel material to a rectangular parallelepiped shape having six surfaces: a pair of side surfaces 1c connecting the back surface 1b, a bottom surface 1d placed on the top surface of the base P (see FIG. 1), and a top surface 1e opposite to the bottom surface 1d. It is formed. In the present embodiment, the shear plate 1 is set to have an aspect ratio of 1: 1. That is, the side surface 1c is formed in a square shape.

  In the shear plate 1, communication paths 2 having one end opened on the bottom surface 1d and the other end opened on the top surface 1e are formed at a plurality of locations (in this embodiment, five locations). The communication path 2 is a portion (space) through which a welding torch is inserted when welding is fixed, and extends linearly between the bottom surface 1d and the top surface 1e along a direction perpendicular to the bottom surface 1d and the top surface 1e. It is formed as a through hole having a circular cross section.

  Thus, since the communicating path 2 is formed as a through-hole having a circular cross section, the processing of the communicating path 2 can be easily performed using a drill, and the amount of lightening is suppressed and the shear plate is suppressed. 1 rigidity can be secured. Further, when one end of the communication path 2 is fixed by welding (see FIG. 3B), welding work can be performed as hole-filling welding, and the workability can be improved. Furthermore, when welding the communication path 2 to the pedestal P, the welding torch can be inserted into the communication path 2 from the upper surface 1e side of the shear plate 1, so that it is not easily disturbed by other members (support member S and pedestal P). It is easy to secure the work space required for welding work. Therefore, the workability of welding work can be improved.

  The plurality of communication passages 2 are arranged at equal intervals along the longitudinal direction of the shear plate 1 (the vertical direction in FIG. 2 (a)) with a space W1 between them. In this case, in this embodiment, the interval W2 between the outermost communication path 2 and the side surface 1c among the plurality of communication paths 2 is between adjacent ones of the plurality of communication paths 2. An interval larger than the interval W1 is set (W1 <W2).

  In the present embodiment, the interval W1 is set to a dimension larger than the diameter of the communication path 2. Moreover, the communicating path 2 is arrange | positioned in the position near the contact surface 1a rather than the intermediate position between the contact surface 1a and the back surface 1b. That is, the distance L1 between the axis of the communication path 2 and the contact surface 1a is set to be smaller than the distance L2 between the axis of the communication path 2 and the back surface 1b (L1 <L2).

  Next, with reference to FIG. 3, a method for attaching the shear plate 1 will be described. FIG. 3A to FIG. 3D are top views of the shear plate 1, and each process when the shear plate 1 is fixed to the base P by welding is illustrated in order. In FIG. 3A to FIG. 3D, for easy understanding, the welding location (welded metal) is illustrated with dot-shaped hatching.

  The mounting of the shear plate 1 on the pedestal P includes an installation process for installing the shear plate 1 on the pedestal P, a tack welding process for tack welding the back surface 1b and the side surface 1c to the pedestal P (FIG. 3 (a)), a communication path A communication path welding step (FIG. 3 (b)) for welding and fixing the inner peripheral surface of 2 to the pedestal P, a side welding step (FIG. 3 (c)) for fixing the side surface 1c to the pedestal P by welding (main welding), and This is performed by sequentially performing each step of a back surface welding step (FIG. 3D) for fixing the back surface 1b to the base P by welding (main welding). Details of each step will be described below.

  In the installation step, the shear plate 1 is installed on the pedestal P in a state where the contact surface 1 a is in contact with the side surface of the support member S and the bottom surface 1 d is in contact with the upper surface of the pedestal P. After the shear plate 1 is installed, the process proceeds to the tack welding process.

  As shown in FIG. 3A, in the tack welding process, the back surface 1b and the side surface 1c are intermittently tack welded to the base P. Thereby, in the communicating path welding process which is a next process, it can control that shear plate 1 shifts in position. After tack welding, the process proceeds to the communication path welding process.

  In addition, in the tack welding process, the target of tack welding may be only one of the back surface 1b and the side surface 1c. Moreover, the number of tack weldings may be only one place or multiple places with respect to one surface.

  As shown in FIG. 3 (b), in the communication path welding step, a welding torch is inserted into the communication path 2 and hole filling welding is performed, so that the inner peripheral surface of one end (bottom surface 1d side) of the communication path 2 is placed on the base P. To be welded. In this case, the communication path 2 is formed as a through hole penetrating the bottom surface 1d and the top surface 1e, so that the weld metal can be retained in the communication path 2. Therefore, it can suppress that a weld metal protrudes to the upper surface (mounting surface of the supporting member S) of the base P, or the contact surface 1a. Accordingly, it is possible to avoid the necessity of removing the protruding weld metal. After performing the hole-filling welding of the communication path 2, the process proceeds to the side welding process.

  As shown in FIG. 3C, in the side surface welding step, the pair of side surfaces 1c are fixed to the base P by welding (main welding). After performing the main welding of the side surface 1c, the process proceeds to the back welding process.

  In addition, since a pair of side surface 1c fixed by welding in a side surface welding process is arrange | positioned symmetrically, the shrinkage | contraction and welding distortion at the time of solidification of the welding part between the bases P are made into one side surface 1c and the other side surface 1c. Can be offset. Therefore, the inclination and the curvature of the shear plate 1 can be suppressed. In addition, since the inner peripheral surface of one end of the communication path 2 is welded and fixed to the pedestal P by the communication path welding process, the side surface is used by utilizing such a welded portion (coupling between the communication path 2 and the pedestal P). Inclination and warpage of the shear plate 1 due to shrinkage or welding distortion during solidification in the welding process can be suppressed.

  As shown in FIG. 3D, in the back surface welding step, the back surface 1b is welded and fixed to the base P (main welding). Thereby, the attachment to the base P of the shear plate 1 is completed.

  As described above, according to the method of attaching the shear plate 1 of the present embodiment, the inner peripheral surface at one end of the communication path 2 is welded and fixed to the base P by the communication path welding process, and the side surface 1c is fixed by the side surface welding process. Since the back surface 1b is welded and fixed to the pedestal P by the back surface welding process after being fixed to the pedestal P by welding, the welded portion (the connection between one end of the communication path 2 and the pedestal P in the previous communication path welding process and side surface welding process) In addition, the inclination of the shear plate 1 and the welding distortion due to the shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the pedestal P) in the subsequent back surface welding process using the side surface 1c and the base P). The warp of the shear plate 1 due to can be suppressed. As a result, the formation of a gap between the support member S and the shear plate 1 can be suppressed.

  In particular, in this embodiment, as described above, the communication path 2 is disposed closer to the contact surface 1a than the intermediate position between the contact surface 1a and the back surface 1b (L1 <L2, FIG. 2 (a)), a separation distance between the communication path 2 and the back surface 1b can be secured. Therefore, the resistance against the inclination of the shear plate 1 due to the shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the pedestal P) in the back surface welding process and the warp of the shear plate 1 due to welding distortion can be increased. it can. As a result, the formation of a gap between the support member S and the shear plate 1 can be suppressed.

  Here, the resistance against the inclination of the shear plate 1 due to shrinkage at the time of solidification of the welded portion (the welded portion between the rear surface 1b and the pedestal P) in the back surface welding process or the warp of the shear plate 1 due to welding distortion is 1 connection. The drag between the side surface 2c of the first side and the pedestal P is greater than that between the path 2 and the pedestal P.

  In this case, according to the present embodiment, as described above, the interval W2 between the outermost communication path 2 and the side surface 1c is larger than the interval W1 between the adjacent communication paths 2. (W1 <W2, see FIG. 2 (a)), it is possible to prevent these drags from being redundantly used, and the number of communication passages 2 formed can be reduced accordingly.

  Next, a second embodiment will be described with reference to FIGS. 4 and 5. First, with reference to FIG. 4, the detailed structure of the shear plate 201 in 2nd Embodiment is demonstrated. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment mentioned above, and the description is abbreviate | omitted.

  4A is a top view of the shear plate 201 according to the second embodiment, and FIG. 4B is a cross-sectional view of the shear plate 201 taken along line IVb-IVb in FIG. 4A. (C) is sectional drawing of the shear plate 201 in the IVc-IVc line | wire of Fig.4 (a).

  As shown in FIG. 4, the shear plate 201 has one end (the left end in FIG. 4 (a)) opened in the bottom surface 1d and the other end (the right end in FIG. 4 (a)) on the back surface 1b. Opened communication paths 202 are formed at a plurality of locations (5 locations in the present embodiment). The communication path 202 is formed as a recessed groove that is recessed in the bottom surface 1d and extends along the short direction of the shear plate 201 (the left-right direction in FIG. 4A). Therefore, the entire communication path 202 is opened to the bottom surface 1d from one end to the other end.

  Here, the shearing force received by the shear plate 201 from the support member S acts along the short direction of the shear plate 201, and the communication path 202 extends along the short direction of the shear plate 201. Therefore, even when the communication path 202 is recessed, it is possible to easily ensure the rigidity of the shear plate 201 against the shearing force.

  Further, according to the shear plate 201, since the welding torch can be inserted into the communication path 202 from the back surface 1b side of the shear plate 201, the welding operation can be performed without being obstructed by the support member S. Therefore, the workability of welding work can be improved.

  The plurality of communication passages 202 are arranged at equal intervals along the longitudinal direction of the shear plate 1 (the vertical direction in FIG. 4 (a)) with a space W3 between them. In this case, in this embodiment, the interval W4 between the communication path 202 located on the outermost side of the plurality of communication paths 202 and the side surface 1c is between adjacent ones of the plurality of communication paths 202. An interval larger than the interval W3 is set (W3 <W4).

  In the present embodiment, the interval W3 is set to be larger than the width dimension of the communication path 202 (the vertical dimension in FIG. 4A). Further, the communication path 202 has one end (the end on the contact surface 1a side (the left side in FIG. 4A)) closer to the contact surface 1a than the intermediate position between the contact surface 1a and the back surface 1b. It is arranged. That is, the distance L3 between the communication path 202 and the contact surface 1a is set to be smaller than the distance L4 between the communication path 202 and the back surface 1b (L3 <L4).

  Next, with reference to FIG. 5, a method for attaching the shear plate 201 will be described. 5 (a), 5 (c), 5 (e) and 5 (g) are top views of the shear plate 201. FIGS. 5 (b), 5 (d) and 5 (f). ) And FIG. 5 (h) are cross-sectional views of the shear plate 201, and each step when the shear plate 201 is fixed to the base P by welding is illustrated in order.

  In FIG. 5A to FIG. 5H, the welded portion (welded metal) is illustrated with dot-shaped hatching for easy understanding. 5 (b), FIG. 5 (d), FIG. 5 (f) and FIG. 5 (h) are the Vb-Vb line in FIG. 5 (a), the Vd-Vd line in FIG. This corresponds to the cross section of the shear plate 201 taken along the line Vf-Vf in FIG. 5E and the line Vh-Vh in FIG.

  The shear plate 201 is attached to the base P in the same manner as in the first embodiment. First, the contact surface 1a is brought into contact with the side surface of the support member S and the bottom surface 1d is brought into contact with the upper surface of the base P. In this state, the shear plate 201 is installed on the pedestal P (installation step), and then the back surface 1b and the side surface 1c are intermittently temporarily welded to the pedestal P as shown in FIGS. 5 (a) and 5 (b). (Tack welding process). Then, it transfers to a communicating path welding process.

  As shown in FIG. 5C and FIG. 5D, in the communication path welding step, a filling torch is inserted into the communication path 202 to fill a space formed between the communication path 202 and the base P. By doing so, the inner peripheral surface of at least one end (the contact surface 1a side) of the communication path 202 is welded and fixed to the base P.

  In this case, since the other end of the communication path 202 is opened to the back surface 1 b, even if the weld metal protrudes from the communication path 202, the protruding direction can be opposite to the support member S. That is, since it does not protrude from the upper surface of the pedestal P or the contact surface 1a, which is the mounting surface of the support member S, it is not necessary to remove the protruding weld metal.

  The communication path welding process is sufficient if at least one end of the communication path 202 is welded. However, as in the present embodiment, it is preferable that at least half of the extended length of the communication path 202 (the length in the left-right direction in FIGS. 5C and 5D) is welded. This is because the resistance against the inclination and warpage of the shear plate 201 described later can be increased. Therefore, the entire extension length of the communication path 202 may be welded.

  After performing the communication path welding step, as shown in FIG. 5 (e) and FIG. 5 (f). Each of the pair of side surfaces 1c is fixed by welding (main welding) to the pedestal P (side welding process), and then the rear surface 1b is fixed to the pedestal P by welding (as shown in FIGS. 5 (g) and 5 (h)). Welding) (back welding process). Thereby, the attachment to the base P of the shear plate 201 is completed.

  As described above, according to the mounting method of the shear plate 201 of the present embodiment, the inner peripheral surface of at least one end of the communication path 202 is welded and fixed to the pedestal P by the communication path welding process, and the side surface 1c by the side surface welding process. Is welded and fixed to the pedestal P, and then the back surface 1b is welded and fixed to the pedestal P by the back surface welding process. Therefore, the welded portion (at least one end of the communication path 202 and the pedestal P and the Of the shear plate 201 due to shrinkage at the time of solidification of the welded portion (welded portion between the back surface 1b and the base P) in the subsequent back surface welding process Warpage of the shear plate 201 due to welding strain can be suppressed. As a result, the formation of a gap between the support member S and the shear plate 201 can be suppressed.

  In particular, in the present embodiment, since the communication path 202 is formed as a concave groove provided in the bottom surface 1d, a welding area between the communication path 202 and the base P can be secured. Accordingly, the resistance against warpage due to shrinkage or welding distortion at the time of solidification in the welded portion between the back surface 1b and the base P can be increased accordingly. As a result, the formation of a gap between the support member S and the shear plate 202 can be suppressed.

  Further, the interval W4 between the outermost communication path 202 and the side surface 1c is set to be larger than the interval W3 between the adjacent communication paths 202 (W3 <W4, FIG. Therefore, it is possible to suppress the redundant use of these drags, and the number of communication passages 202 formed can be reduced accordingly.

  Furthermore, one end of the communication path 202 is disposed at a position closer to the contact surface 1a than an intermediate position between the contact surface 1a and the back surface 1b (L3 <L4, see FIG. 4A). A separation distance between one end of the passage 202 and the back surface 1b can be secured. Therefore, the resistance against the inclination of the shear plate 201 due to the shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the pedestal P) in the back surface welding process and the warp of the shear plate 201 due to the welding strain can be increased accordingly. it can. As a result, the formation of a gap between the support member S and the shear plate 201 can be suppressed.

  Next, a third embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment mentioned above, and the description is abbreviate | omitted.

  6A is a top view of the shear plate 301 in the third embodiment, and FIG. 6B is a cross-sectional view of the shear plate 301 taken along the line VIb-VIb in FIG. 6A. (C) is sectional drawing of the shear plate 301 in the VIc-VIc line | wire of Fig.6 (a).

  As shown in FIG. 6, the shear plate 301 has a plurality of communication paths 302 having one end (the center in the longitudinal direction of the shear plate 301) opened on the bottom surface 1d and the other end opened on the side surface 1c (this embodiment). It is formed at two locations in the form. The communication path 302 is formed as a recessed groove that is recessed in the bottom surface 1d and extends along the longitudinal direction of the shear plate 301 (the vertical direction in FIG. 6A). Thus, the entire communication path 302 from one end to the other end is opened in the bottom surface 1d.

  According to the shear plate 301, the welding torch can be inserted into the communication path 302 from the side surface 1c side. Therefore, since the welding operation can be performed without being disturbed by the support member S, the workability of the welding operation can be improved. Even if the weld metal protrudes from the communication path 302, the protruding direction can be different from the direction of the support member S. That is, since it does not protrude from the upper surface of the pedestal P or the contact surface 1a, which is the mounting surface of the support member S, it is not necessary to remove the protruding weld metal.

  The welding range in the communication path welding step (see FIG. 5B) is sufficient if at least one end of the communication path 302 is welded. However, as in the case of the second embodiment described above, it is preferable that at least half of the extended length of the communication path 302 (the length in the vertical direction in FIG. 6A) is welded. This is because the resistance against the inclination and warpage of the shear plate 301 described later can be increased. Therefore, the entire extension length of the communication path 302 may be welded.

  In the present embodiment, the communication path 302 is disposed at a position closer to the contact surface 1a than an intermediate position between the contact surface 1a and the back surface 1b. That is, the distance L5 between the communication path 302 and the contact surface 1a is set to be smaller than the distance L6 between the communication path 302 and the back surface 1b (L5 <L6).

  The mounting of the shear plate 301 to the base P includes an installation process for installing the shear plate 301 on the base P, a tack welding process for temporarily welding the back surface 1b and the side surface 1c to the base P (see FIG. 5A), continuous A communication path welding process (see FIG. 5C) for fixing the inner peripheral surface of the passage 302 to the pedestal P by welding (see FIG. 5C), and a side welding process for fixing the side surface 1c to the pedestal P by welding (main welding) (see FIG. 5E). And, it is performed by sequentially performing each step of the back surface welding step (FIG. 5G) for fixing the back surface 1b to the pedestal P by welding (main welding). In addition, since each process is substantially the same as the case of each embodiment mentioned above, the detailed description is abbreviate | omitted.

  According to the attachment method of the shear plate 301 of this embodiment, the inner peripheral surface of at least one end of the communication path 302 is welded and fixed to the pedestal P by the communication path welding process, and the side surface 1c is welded to the pedestal P by the side surface welding process. After being fixed, the back surface 1b is welded and fixed to the pedestal P by the back surface welding process. Therefore, the welded portion in the previous communication path welding process and the side surface welding process (the connection between at least one end of the communication path 302 and the pedestal P and the side surface 1c). And the pedestal P), a shear plate due to the inclination of the shear plate 301 due to shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the pedestal P) in the subsequent back surface welding process or a welding strain. 301 warpage can be suppressed. As a result, the formation of a gap between the support member S and the shear plate 301 can be suppressed.

  In particular, in the present embodiment, the communication path 302 is formed as a concave groove provided in the bottom surface 1d, so that a welding area between the communication path 302 and the base P can be secured. Further, since the communication path 302 is disposed at a position closer to the contact surface 1a than an intermediate position between the contact surface 1a and the back surface 1b (L5 <L6), the communication path 302 is located between the communication path 302 and the back surface 1b. A separation distance can be secured. Therefore, the inclination of the shear plate 301 due to shrinkage at the time of solidification of the welded portion (the welded portion between the back surface 1b and the base P) in the back surface welding step (see FIG. 5D) and the warp of the shear plate 301 due to welding distortion. Drag can be increased. As a result, the formation of a gap between the support member S and the shear plate 301 can be suppressed.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and various improvements and modifications can be easily made without departing from the spirit of the present invention. It can be guessed.

  The numerical values given in the above embodiments are examples, and other numerical values can naturally be adopted. For example, the number of communication paths 2, 202, 302 may be smaller than the number illustrated in the above embodiments, or may be larger.

  A part or all of one of the above embodiments may be combined with part or all of the other embodiments. For example, part or all of the communication paths 2 and 202 in the first embodiment and / or the second embodiment may be added to the shear plate 301 of the third embodiment. Alternatively, a part of the communication path 2 in the first embodiment may be replaced with the communication path 202 in the second embodiment.

  In each of the above embodiments, the case where the plurality of communication passages 2, 202, 302 are formed in the same shape (dimension) has been described. However, the present invention is not necessarily limited to this, and some shapes (dimensions) are different. It may be formed.

  In each of the above-described embodiments, the case where the side surface welding process is performed has been described. However, the present invention is not necessarily limited thereto, and the side surface welding process may be omitted. Even in this case, the inclination and warpage of the shear plates 1, 201, 301 can be suppressed by the connection between the communication paths 2, 202, 302 and the base P.

  In each of the above embodiments, the aspect ratio of the shear plates 1, 201, 301 (ratio between the distance between the bottom surface 1d and the top surface 1e and the distance between the contact surface 1a and the back surface 1b) is set to 1: 1. Although the case has been described, the present invention is not necessarily limited to this, and other ratios are naturally possible. Examples of other ratios include an aspect ratio of 1: N (1 <N).

  In this case, the aspect ratio is preferably set in a range from 1: 1 to 1: 2, more preferably in a range from 1: 1 to 1: 1.5.

  In the conventional product, the supporting member S is formed by using the weight of the shear plate as a drag force against the shrinkage at the time of solidification of the welded portion between the back surface and the pedestal P or by increasing the welding length between the side surface and the pedestal P. Since the structure suppresses the formation of a gap between the shear plate and the shear plate, the aspect ratio (distance between the contact surface 1a and the back surface 1b) tends to increase. Therefore, there has been a problem that the shear plate is enlarged and the material cost is increased. On the other hand, according to the present invention, the welding fixing (coupling) between the communication paths 2, 202, 302 and the pedestal P can be a resistance against the shrinkage at the time of solidification of the welded portion between the back surface 1b and the pedestal P. The weight of the shear plates 1, 201, 301 is not required to be a drag, and the aspect ratio can be further reduced. Therefore, it is possible to reduce the size of the shear plates 1, 201, 301 and reduce the material cost.

  In the first embodiment, the communication path 2 is formed in a circular cross section. However, the communication path 2 is not necessarily limited to this, and may be an elliptical cross section or an oval cross section. In addition, the communication path 2 is arranged at a position where the peripheral edge does not intersect with the outer edges of the bottom surface 1d and the upper surface 1e. However, a part of the peripheral edge may be arranged at a position where the outer edges of the bottom surface 1d and the upper surface 1e intersect.

  In the first embodiment and the second embodiment, the case where the plurality of communication paths 2 and 202 are arranged at equal intervals (intervals W1 and W3) has been described. However, the present invention is not necessarily limited to this, and is unequal. It may be an interval. In the third embodiment, the case where the communication path 302 on the one side surface 1c side and the communication path 302 on the other side surface 1c side are formed at the same position has been described, but they may be formed at different positions. .

1, 201, 301 Shear plate 1a Contact surface 1b Back surface 1c Side surface 1d Bottom surface 1e Upper surface 2, 202, 302 Communication path P Base S Support member B Bolt

Claims (5)

A shear plate having a rectangular parallelepiped shape is provided, and the contact surface along the longitudinal direction of the shear plate is in contact with the side surface of the support member fastened and fixed to the base and is opposite to the contact surface. In the mounting structure of the shear plate whose back is welded and fixed to the pedestal,
The shear plate includes a communication path having one end opened at a bottom surface thereof and the other end opened at an outer surface excluding the bottom surface,
The communication path is formed as a through hole penetrating between the bottom surface and an upper surface opposite to the bottom surface, and is closer to the contact surface than an intermediate position between the contact surface and the back surface. is disposed, the mounting structure of the shear plate at least one end of the communication passage, characterized in that it is welded to the pedestal. A shear plate having a rectangular parallelepiped shape is provided, and the contact surface along the longitudinal direction of the shear plate is in contact with the side surface of the support member fastened and fixed to the base and is opposite to the contact surface. In the mounting structure of the shear plate whose back is welded and fixed to the pedestal,
The shear plate includes a communication path having one end opened at a bottom surface and the other end opened at an outer surface excluding the bottom surface, and a pair of side surfaces connecting the contact surface and the back surface are fixed to the base by welding. ,
The communication path is formed as a through-hole penetrating between the bottom surface and an upper surface opposite to the bottom surface, and a plurality of the communication paths are arranged along the contact surface and the back surface. One end is fixed to the base by welding,
An interval between the communication path located on the outermost side of the plurality of communication paths and the side surface is set to be larger than an interval between adjacent ones of the plurality of communication paths. A shear plate mounting structure characterized by the above. A shear plate having a rectangular parallelepiped shape is provided, and the contact surface along the longitudinal direction of the shear plate is in contact with the side surface of the support member fastened and fixed to the base and is opposite to the contact surface. In the mounting structure of the shear plate whose back is welded and fixed to the pedestal,
The shear plate includes a communication path having one end opened on the bottom surface and the other end opened on the back surface,
The communication passage, said recessed in the bottom surface along the widthwise direction of the shear plate is formed as a recessed groove that extends, and wherein Rukoto least one end of the communication passage is welded to the pedestal Shear plate mounting structure. A shear plate having a rectangular parallelepiped shape is provided, and the contact surface along the longitudinal direction of the shear plate is in contact with the side surface of the support member fastened and fixed to the base and is opposite to the contact surface. In the mounting structure of the shear plate whose back is welded and fixed to the pedestal,
The shear plate includes a communication path having one end opened on the bottom surface and the other end opened on a side surface connecting the contact surface and the back surface.
The communication passage, said recessed in the bottom surface along the longitudinal direction of the shear plate is formed as a groove which extends, at least one end of the communication passage, characterized that you have been welded to the pedestal Shear plate mounting structure. The contact surface along the longitudinal direction of the shear plate formed in a rectangular parallelepiped shape is in contact with the side surface of the support member fastened and fixed to the pedestal, and the back surface opposite to the contact surface is welded to the pedestal. In the mounting method of the fixed shear plate,
The shear plate having a communication path having one end opened at the bottom surface and the other end opened at the outer surface excluding the bottom surface, the contact surface abutting against the side surface of the support member, and the bottom surface serving as the pedestal An installation process for installing in a contact state;
A communication path welding step of welding and fixing at least one end of the communication path of the shear plate installed on the pedestal to the pedestal by the installation step;
A back surface welding step of welding and fixing the back surface of the shear plate to which the at least one end of the communication passage is welded to the pedestal by the communication path welding step;
A shear plate mounting method, wherein at least one end of the communication path is disposed at a position closer to the contact surface than an intermediate position between the contact surface and the back surface.

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