JP2005069789A - Metering device for track scale - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metering device for a track scale capable of stopping a swing motion of a mounting table by a mounting fixture of a load cell. <P>SOLUTION: The load cell 5 is supported by the mounting bracket 6. The mounting fixture 6 comprises a lower side metal fitting 8 fixed to a pedestal 7 and an upper side metal fitting 9 hanging over the lower side metal fitting 8 and supporting the mounting table 4. The lower end of the load cell 5 is accepted and supported by the lower side metal fitting 8, and the upper side metal fitting 9 abuts on the upper end of the load cell 5, to thereby form the state where the load cell 5 is sandwiched between the upper side metal fitting 9 and the lower side metal fitting 8 from the upper and lower sides. An aperture in the supposed rocking range in the X-direction of the mounting table 4 is formed between right and left wall parts 11 having an L-shaped section of the lower side metal fitting 8 and right and left side plate parts 14 of the upper side metal fitting 9, and an aperture in the supposed rocking range in the Y-direction of the mounting table 4 is formed between a rear end part of the right and left wall parts 11 having the L-shaped section of the lower side metal fitting 8 and a plate part 16 on the rear end of the upper side metal fitting 9. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a weighing apparatus for a track scale that receives a track platform so as to be finely movable in X and Y directions perpendicular to each other and measures the total weight of a track placed on the track platform.

For example, as disclosed in Patent Document 1, this type of conventional weighing device for a truck scale is configured to include a platform on which a truck is placed and a load cell, and the truck for measuring the weight of the truck. A pair of scales that are spaced apart from the front and rear portions corresponding to the front end portion of the track, and each of the front and rear end portions of the base is installed via the load cell, and the pair of mounts A plurality of beam members that are detachably coupled to each other and connect the gantry to each other, and a track wheel guide step that is detachably coupled to the outer ends of each of the pair of gantry, respectively. In addition, there is known a track scale mounting table made of a steel material for the frame, the beam member, and the step.
JP-A-5-31628

  The conventional track scale mounting table described above has a problem that when the truck is placed on the mounting platform from the track wheel guiding step, the mounting platform swings back and forth and from side to side and the stability of the mounting platform is poor.

  In order to stop the shaking movement of the mounting table, it is necessary to separately provide stopper means between the mounting table and the step.

  SUMMARY OF THE INVENTION An object of the present invention is to achieve these problems, and to provide a weighing device for a track scale in which it is not necessary to separately provide a stopper means, and the shaking movement of the mounting table is stopped by a load cell mounting bracket. .

  According to the first aspect of the present invention, the weighing apparatus for the scale of the truck measures the total weight of the truck mounted on the truck platform by receiving the truck platform so as to be finely movable in the X and Y directions orthogonal to each other using the load cell. A weighing apparatus for a truck scale, wherein the load cell is supported by a mounting bracket, and the mounting bracket receives a mounting base on a lower bracket fixed to a support portion such as a base portion and the lower bracket. It consists of an upper bracket, and the lower bracket receives and supports the lower end of the load cell.The upper bracket contacts the upper end of the load cell so that the load cell is sandwiched between the upper and lower brackets from above and below. Between the left and right wall portions of the L-shaped section of the side bracket and the left and right side plate portions of the upper bracket, a gap within the assumed swing range in the X direction of the mounting base is formed. Section L It is to summarized as a gap in the range of rocking envisaged in the Y direction the platform between the plate portion of the rear portion and the upper bracket of the left and right wall portions of are formed.

  As described above, the weighing device for the track scale of the present invention causes the platform to swing when the track is placed on the platform, but the range of the swing is the left and right walls of the lower bracket and the left and right walls of the upper bracket. Is within the gap between the rear plate of the left and right walls of the lower bracket and the plate of the rear bracket of the upper bracket. The left and right wall portions of the bracket and the left and right side plate portions of the upper bracket abut, and the rear end portions of the left and right wall portions of the lower bracket and the rear end plate portion of the upper bracket abut, thereby shaking the platform Can be stopped.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In the figure, 1 is a concrete pit, and this pit 1 is buried in the ground 2 so that the upper end is at the same level as the ground 2. Inside the pit 1, there is provided a concrete platform 4 supported by two parallel beams 3 whose back surface is I-shaped. The mounting table 4 is received via a load cell 5 so that the upper surface is at the same level as the upper end of the pit 1. More specifically, the mounting table 4 is formed such that a gap is formed so that the outer peripheral surface does not come into contact with the inner peripheral surface of the pit 1 due to the swinging movement of the mounting table 4 in the front / rear and left / right directions. Both ends in the vertical direction are supported by the mounting bracket 6 of the load cell 5 so that a gap is formed so as not to come into contact with the inner peripheral surface of the pit 1 due to the swinging movement of the mounting table 4 back and forth.

  The mounting bracket 6 of the load cell 5 will be described in detail. The mounting bracket 6 is mounted on a lower bracket 8 placed on a base portion 7 formed at the four corners of the inner bottom of the pit 1, and on the lower bracket 8. The upper metal fitting 9 is covered, and the lower metal fitting 8 receives and supports the lower end of the load cell 5. The upper metal fitting 9 contacts the upper end of the load cell 5, and the load cell 5 is interposed between the upper metal fitting 9 and the lower metal fitting 8. Is sandwiched from above and below. The lower metal fitting 8 includes a base portion 10 and left and right wall portions 11 and 11 having an L-shaped cross section provided so as to stand up on the base portion 10 and having shoulder portions 11a facing outward. The load cell 5 placed on the base portion 10 between the left and right wall portions 11 and 11 is configured to protrude upward from the upper ends of the left and right wall portions 11 and 11. In addition, the said wall parts 11 and 11 are provided over the full length of the depth direction (Y direction) orthogonal to the left-right direction (X direction) of the base part 10. FIG. An anchor 12 embedded in the base portion 7 is attached to the base portion 10 by screwing. Next, the upper metal fitting 9 has an upper plate portion 13 that contacts the upper end of the load cell 5, left and right side plate portions 14 bent downward at right angles from the left and right sides of the upper plate portion 13, and the lower ends of the side plate portions 14. The upper plate portion 13 and the left and right side plate portions 14 are closed so as to close the rear end side opening formed by the horizontal plate portion 15 bent outward at a right angle and the upper plate portion 13 and the left and right side plate portions 14. The upper metal part 9 is coupled to the beam 3 by being inserted into the hole 3a formed in the beam 3 from the upper surface of the upper plate part 13 and screwed into the nut 17 to be tightened. A plurality of male screw shafts 18 are provided upright. In the state where the lower metal fitting 8 is attached on the base 7, the upper metal fitting 9 is attached to the beam 3, and the load cell 5 is interposed between the lower metal fitting 8 and the upper metal fitting 9, Between the left and right wall portions 11, 11 having the L-shaped cross section and the left and right side plate portions 14 of the upper metal fitting 9, a gap within an assumed swing range in the longitudinal direction (X direction) of the mounting table 4 is formed. In addition, the short direction (Y direction) of the platform 4 is assumed between the rear end portions of the left and right wall portions 11, 11 of the L-shaped cross-section of the lower metal fitting 8 and the plate portion 16 of the upper metal fitting 9. A gap is formed within the range of swinging.

  In the above configuration, the mounting bracket 6 is set on the base portion 7 formed at the four corners of the inner bottom portion of the pit 1 so that the left-right direction (X direction) is along the longitudinal direction of the pit 1. In this state, both ends of the beam 3 in the longitudinal direction are coupled to the mounting bracket 6 by tightening nuts 17, and the concrete platform 4 is mounted on the two beams 3. As a result, the mounting table 4 is received by the mounting bracket 6 with the four corners containing the load cell 5.

  When a truck (not shown) is placed on the weighing device for the truck scale configured as described above, that is, on the platform 4, the total weight including the load placed on the truck is measured by the load cell 5. Become. When the truck is placed on the platform 4, the platform 4 sways, but the range of the sway is between the left and right wall parts 11, 11 of the lower metal part 8 and the left and right side plate parts 14 of the upper metal part 9. And within the gap between the rear end portions of the left and right wall portions 11, 11 of the lower metal fitting 8 and the plate portion 16 of the upper metal fitting 9, and the lower metal fitting 8 The left and right wall portions 11 and 11 are in contact with the left and right side plate portions 14 of the upper metal fitting 9, and the rear end portions of the left and right wall portions 11 and 11 of the lower metal fitting 8 are in contact with the plate portion 16 of the upper metal fitting 9. Thus, the shaking of the mounting table 4 can be stopped.

  As mentioned above, although embodiment shown in drawing was described, it is not limited to embodiment shown in drawing about the number of the load cells 5 used, and the attachment part structure of the mounting base 4. As shown in FIG.

It is a top view of the weighing device for track scales in an embodiment of the invention. It is side surface sectional drawing of the measuring apparatus for track scales. It is front sectional drawing of the weighing device for the track scale. It is a principal part enlarged view of the load cell attachment part. It is a perspective view of the load cell attachment metal fitting. It is sectional drawing of the load cell attachment metal fitting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pit 2 Ground 3 Beam 4 Mounting stand 5 Load cell 6 Mounting bracket 7 Base part 8 Lower side bracket 9 Upper side bracket 10 Base part 11 Wall part 11a Shoulder part 12 Anchor 13 Upper plate part 14 Side plate part 15 Horizontal flat plate part 16 Plate part 17 Nut 18 Male threaded shaft

Claims (1)

A truck scale weighing device that uses a load cell to measure the total weight of the truck placed on the truck platform by receiving the truck platform so as to be finely movable in the X and Y directions perpendicular to each other. The load cell is supported by a mounting bracket. The mounting bracket is composed of a lower bracket that is fixed to a support portion such as a pedestal and an upper bracket that is placed on the lower bracket to receive the mounting base. The lower bracket receives the lower end of the load cell. The upper bracket is in contact with the upper end of the load cell so that the load cell is sandwiched between the upper bracket and the lower bracket, and the left and right walls of the L-shaped cross section of the lower bracket and the left and right of the upper bracket A gap within an assumed swing range in the X direction of the mounting base is formed between the side plate and the rear end of the left and right walls of the lower metal fitting and the upper metal fitting. Y between the board and the board The gaps in the range of rocking envisaged countercurrent is formed truck scale for weighing apparatus according to claim.

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