JP5063513B2 - Air spring dismantling device - Google Patents

Description

  The present invention relates to an air spring disassembling apparatus employed in a railway vehicle, and more particularly to an air spring disassembling apparatus for facilitating replacement work of a cylindrical flexible film body constituting the air spring.

  An air spring employed in a railway vehicle generally has an upper and lower surface plate and a cylindrical flexible film body (diaphragm) having ends connected to the surface plate. This cylindrical flexible membrane is disassembled from the inner surface of the diaphragm 3 once assembled for maintenance.

  In order to disassemble the tubular flexible membrane body, for example, a lever is inserted into the fitting portion between the bottom plate and the cylindrical flexible membrane body, and the fitting portion is pry open using this lever. There is one in which the flexible film body is disassembled from the lower surface plate (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2001-355667 (paragraph 0006.0007. FIG. 5)

  In the above-described disassembly work of the air spring, if the weight of the air spring is, for example, about 70 kg, two workers are required for the disassembly work. The procedure of the dismantling work will be described. First, when removing the fitting portion between the lower surface plate and the lower end portion of the cylindrical flexible film body, one worker lifts the upper surface plate of the air spring, Tilt the air spring diagonally.

  In this state, another worker uses a hammer to hammer the special spring into the fitting part between the bottom plate of the air spring and the lower end of the tubular flexible membrane body, and pry the fitting part. However, the operation | work which removes the lower side edge part of a cylindrical flexible film body from a lower surface board is performed.

  Next, when removing the fitting portion between the top plate and the upper end of the tubular flexible membrane body, the air spring is reversed, and one worker operates the overhead crane to remove the hook of the overhead crane. Hook on the tubular flexible membrane of the air spring. Next, after raising the hook of the overhead crane to make the air spring slanted, one worker operating the crane gets on the cylindrical flexible membrane of the air spring and pushes the air spring. Set to a fixed state. Next, another worker rides on a portion of the top plate of the air spring, hangs the weight on the top plate of the air spring, and the top flexible plate of the air spring is suspended by a crane. You are removing it from your body.

  As described above, the dismantling work of the air springs must rely on human power, and the dismantling work requires a great deal of time and money.

  The present invention has been made based on the above-described background, and an object of the present invention is to provide an air spring disassembly device that can save labor in dismantling work of the air spring.

  In order to achieve the above object, a first invention is an air spring disassembling apparatus for disassembling an air spring having an upper and lower surface plate and a cylindrical flexible film body having ends connected to the upper and lower surface plates. An apparatus main body comprising a pedestal and an upper frame provided on the upper part of the pedestal, and a lower surface plate gripping means provided on the pedestal of the apparatus main body for gripping the lower surface plate of the air spring from its side. A flexible film body gripping means for gripping the cylindrical flexible film body of the air spring from the side, provided on the pedestal of the apparatus body, and provided on the upper frame of the apparatus body so as to be movable up and down. And an upper plate holding means for holding the upper plate of the air spring from the side thereof.

  According to a second invention, in the first invention, the flexible film body gripping means includes a lower gripping claw capable of advancing and retracting to a lower side of the tubular flexible film body of the air spring, and the air spring. An upper gripping claw capable of moving forward and backward toward the upper side of the cylindrical flexible film body and having a tip portion rotatable in the vertical direction; pressing means for pressing the upper gripping claw toward the lower gripping claw; and the upper side And a spring that applies a biasing force in a direction in which the gripping claw is separated from the lower gripping claw.

  Further, in a third invention according to the second invention, the upper gripping claw in the flexible film body gripping means has a protrusion that contacts the upper side surface of the tubular flexible film body of the air spring on the lower surface of the tip. I have.

  According to a fourth aspect of the present invention, the air spring according to any one of the first to third aspects further includes a transfer carriage for mounting the air spring and transferring the air spring into the apparatus main body. .

  Furthermore, a fifth invention is characterized in that, in the fourth invention, a guide for guiding the transfer carriage to a central portion of the apparatus main body is provided on a pedestal of the apparatus main body.

  According to the present invention, it is possible to save labor in dismantling work of the air spring and further improve the work efficiency.

Embodiments of an air spring disassembling apparatus according to the present invention will be described below with reference to the drawings.
1 to 3 show an embodiment of an air spring disassembling apparatus according to the present invention. FIG. 1 is a front view of an air spring disassembling apparatus according to an embodiment of the present invention, and FIG. FIG. 3 is a plan view of an embodiment of the air spring disassembly apparatus of the present invention shown in FIG. 1. In FIG. 2, the flexible film body gripping means constituting the embodiment of the air spring disassembling apparatus of the present invention is omitted for the purpose of drawing.

  1 to 3, the air spring to be disassembled is indicated by the symbol S. The air spring S has upper and lower surface plates S1 and S2, and a cylindrical flexible film body (diaphragm) S3 having ends connected to the surface plates S1 and S2.

  The disassembling apparatus for disassembling the air spring S includes an apparatus main body 1. When viewed from the front side of the apparatus main body 1, the apparatus main body 1 includes a right front leg 2a, a right rear leg 2b, a left front leg 2c, a left rear leg 2d, and the legs. The upper frame 3 provided above the columns 2a to 2d, the right beam 2e fixed between the right front leg column 2a and the right rear leg column 2b, the left front leg column 2c and the left It is composed of a left beam 2f fixed between the rear leg 2d.

  A wheel 4 is provided at the lower part of each of the pillars 2a to 2d. In the apparatus main body 1, a transport carriage 5 on which an air spring S is placed can enter and exit through the legs 2. In order to position the air spring S at the center of the apparatus main body 1, the right front leg 2a, the right rear leg 2b, the left front leg 2c and the left rear leg of the apparatus main body 1 are provided. 2d and the pedestal 2 are provided with guides 6 of the transport carriage 5, respectively. The guide 6 includes a tip-shaped guide portion 6A that guides the front end portion of the transport cart 5 and a parallel guide portion 6B that guides the feet of the transport cart 5.

  The apparatus main body 1 is mounted on the pedestal 2 and mounted on the pedestal 2 of the apparatus main body 1 and the lower surface plate gripping means 7 for gripping the lower surface plate S2 of the air spring S from the side. The flexible film body gripping means 8 for gripping the cylindrical flexible film body S3 from the side and the upper frame 3 of the apparatus main body 1 are movably mounted, and the upper surface plate S1 of the air spring S is Upper surface plate gripping means 9 for gripping from the side is provided. The lower surface plate gripping means 7, the flexible film body gripping means 8, and the upper surface plate gripping means 9 described above are the main components in the air spring disassembling apparatus.

Detailed configurations of the above-described lower surface plate gripping means 7, flexible film body gripping means 8, and upper surface plate gripping means 9 will be sequentially described below.
First, the configuration of the lower surface plate gripping means 7 will be described with reference to FIGS. 1 to 3. The lower surface plate gripping means 7 is disposed so as to face the lower surface plate S2 of the air spring S from the side thereof. Two pairs of gripping claws 70 are provided. Each gripping claw 70 is supported by a guide 71 provided on each of the beams 2e and 2f so as to be able to advance and retreat toward the center of the apparatus main body 1. An operation cylinder 72 is connected to each gripping claw 70.

  Next, the structure of the upper surface plate gripping means 9 will be described with reference to FIGS. 1 to 3. The upper surface plate gripping means 9 has a lower surface of the upper surface plate S1 of the air spring S as shown in FIG. There are four gripping claws 90 gripped from the right side. The gripping claws 90 are supported by the upper surface plate gripping frame 91 so as to be able to advance and retract toward the center of the apparatus main body 1. Each gripping claw 90 is connected to an operating cylinder 92 provided on the top plate gripping frame 91. As shown in FIG. 1, the upper plate gripping frame 91 is connected to a piston rod 94 of a cylinder 93 for vertical movement fixed to the upper frame 3 of the apparatus main body 1. Further, the upper plate gripping frame 91 is held by a guide rod 95 so as to be movable up and down so as not to cause lateral shake.

Next, the configuration of the flexible film body gripping means 8 will be described with reference to FIGS. 1 to 3 and FIGS. 4 to 8. 4 is a front view of the flexible membrane body gripping means 8, FIG. 5 is a plan view of the flexible membrane body gripping means 8 shown in FIG. 4, and FIG. 6 is a side view of the flexible membrane body gripping means 8 shown in FIG. 7 is a front view of the upper gripping claws constituting the flexible film body gripping means 8, and FIG. 8 is a bottom view of the upper gripping claws constituting the flexible film body gripping means 8 shown in FIG.
The flexible film body gripping means 8 includes a lower gripping claw 80 that grips the lower surface of the cylindrical flexible film body S3 of the air spring S and an upper grip that grips the upper surface of the cylindrical flexible film body S3 of the air spring S. Claw 81. The lower gripping claw 80 is supported by a base 801 fixed to the beam 2 f and a guide 802 provided on the distal end side of the base 801 so as to advance and retreat toward the center of the apparatus main body 1. On both sides of the rear part of the lower gripping claw 80, operating handles 803 are provided.

  A flange 805 having a pin hole 804 is provided on one side of the rear portion of the lower gripping claw 80. The pin hole 804 of the flange 805 coincides with the pin hole 807 of the flange 806 provided on the side portion on the distal end side of the base 801 when the lower gripping claw 80 is moved toward the center of the apparatus main body 1. The pin shaft 808 is inserted into the pin hole 804 of the flange 805 and the pin hole 807 of the flange 806. Accordingly, the lower gripping claw 80 is held by the pin shaft 808 so as not to move in the backward direction, that is, the left direction in FIGS. 4 and 5 (side of the apparatus main body 1).

  As shown in FIG. 8, the upper gripping claw 81 is formed in an arcuate shape so that the tip thereof corresponds to the upper surface of the cylindrical flexible film body S <b> 3 of the air spring S. Further, a protrusion 810 is provided on the lower surface of the distal end portion of the upper gripping claw 81 to increase the catch of the air spring S on the upper surface of the cylindrical flexible film body S3. Thereby, the tip of the upper gripping claw 81 is prevented from slipping with respect to the upper surface of the tubular flexible film body S3 of the air spring S.

  The lower surface of the rear portion of the upper gripping claw 81 is in contact with the upper surface of the lower gripping claw 80 and exhibits a guide function. The first gripping claw 81 serves as a rotation fulcrum when the tip of the upper gripping claw 81 is rotated downward. The guide member 811 and the second guide member 812 that contacts the upper surface of the lower gripping claw 80 and exerts a guide function and serves as a pivot for turning the tip of the upper gripping claw 81 upward are gripped by the upper grip. The claws 81 are juxtaposed in a direction perpendicular to the advancing / retreating direction of the claws 81. A handle 813 for moving the upper gripping claw 81 forward and backward is provided at the rear of the upper gripping claw 81.

  A pressing plate 814 for pressing the distal end side of the upper gripping claw 81 is disposed on the upper surface on the distal end side of the upper gripping claw 81. The pressing plate 814 is provided at the tip of the piston rod 816 of the cylinder 815. The cylinder 815 is fixed to a U-shaped frame body 817 fixed to the base 801.

  A long hole 818 is formed at the center of the upper gripping claw 81. A bolt 819 is inserted into the elongated hole 818 from the lower surface of the upper gripping claw 81 toward the upper surface, and a nut 820 is screwed into the upper surface side of the upper gripping claw 81. A spring 821 is provided between the head of the bolt 819 and the lower surface of the upper gripping claw 81 to give the upper gripping claw 81 an upward movement return force.

Next, the operation of the embodiment of the above-described air spring disassembly apparatus of the present invention will be described.
First, the air spring S is placed on the transport cart 5, and the transport cart 5 is carried into the central portion of the apparatus main body 1 through the guide 6.

  Next, the operation cylinder 72 moves the two pairs of gripping claws 70 of the lower surface plate gripping means 7 toward the center of the apparatus main body 1, and the two pairs of gripping claws 70 move the lower surface plate S <b> 2 of the air spring S. Grab.

  Next, the piston rod 94 of the cylinder 93 for vertical movement constituting the upper surface plate gripping means 9 is extended to lower the upper surface plate gripping frame 91 so that the gripping claws 90 are placed on the lower surface of the upper surface plate S1 of the air spring S. After being lowered to the corresponding position, the cylinder 92 is operated to move the four gripping claws 90 toward the center of the apparatus main body 1 so as to be positioned on the lower surface side of the upper surface plate S1 of the air spring S.

  Next, the piston rod 94 of the cylinder 93 for vertical movement constituting the upper surface plate gripping means 9 is reduced, and the upper surface plate gripping frame 91 and the gripping claws 90 are raised. As a result, the gripping claws 90 abut against the lower surface of the upper surface plate S1 of the air spring S, and the upper surface plate S1 and the cylindrical flexible film body S3 of the air spring S are pulled upward. By pulling up the upper surface plate S1 and the tubular flexible film body S3 of the air spring S, the lower part of the tubular flexible film body S3 in the air spring S is separated from the lower surface plate S2 of the air spring S. be able to.

  Next, after the lower surface plate S2 of the air spring S left on the transport carriage 5 is moved from the transport carriage 5 to another place, the lower gripping claw 80 in the flexible film body gripping means 8 is operated. The handle 803 is moved toward the center of the apparatus main body 1. At this time, the upper gripping claw 81 in the flexible film body gripping means 8 is similarly moved toward the center of the apparatus main body 1, so that the upper gripping claw 81 is pulled back to the side of the apparatus main body 1 by the handle 813. . As a result, the lower gripping claw 80 is positioned inside the apparatus main body 1 as indicated by a two-dot chain line in FIG.

  Next, the pin shaft 808 is inserted into the pin hole 804 of the flange 805 provided on one side of the rear part of the lower gripping claw 80 and the pin hole 807 of the flange 806 provided on the side part on the front end side of the base 801. The lower gripping claw 80 is fixed so as not to move in the backward direction, that is, the left direction in FIGS. 4 and 5 (the side of the apparatus main body 1).

  Next, the upper surface plate S1 of the air spring S and the cylindrical flexible film body S3 held by the gripping claws 90 in the upper surface plate gripping means 9 are lowered downward by the cylinder 93 for vertical movement, and the cylinder of the air spring S is pulled down. The lower portion of the flexible film body S3 is brought into contact with the upper surface of the lower gripping claw 80 in the flexible film body gripping means 8. In this state, as shown by a two-dot chain line in FIG. 5, the upper gripping claw 81 in the flexible film body gripping means 8 is disposed between the upper surface of the cylindrical flexible film body S3 of the air spring S and the upper surface plate S1. Plug in.

  Next, when the piston rod 816 of the cylinder 815 in the flexible film body gripping means 8 is extended, the pressing plate 814 is moved downward, and the pressing plate 814 is pressed against the top surface of the upper gripping claw 81, the upper side The gripping claw 81 rotates downward with the corner portion of the first guide member 811 as a fulcrum, and presses and clamps the upper side surface of the cylindrical flexible film body S3 of the air spring S downward. Thereby, the cylindrical flexible film body S3 of the air spring S is held by the upper holding claw 81 and the lower holding claw 80. At this time, the head of the bolt 819 in the flexible film body gripping means 8 is in contact with the upper surface of the lower gripping claw 80 to compress the spring 821.

  Next, the gripping claws 90 of the upper surface plate gripping means 9 are pulled upward by the vertically moving cylinder 93 in the upper surface plate gripping means 9, and the upper surface plate S1 of the air spring S is lifted from the upper part of the cylindrical flexible film body S3. Separate. Thereafter, when the piston rod 816 of the cylinder 815 in the flexible membrane gripping means 8 is reduced and the pressing plate 814 is moved upward, the tip of the upper gripping claw 81 of the flexible membrane gripping means 8 Due to the urging force, the corner of the second guide member 812 is pivoted upward with the fulcrum as a fulcrum, and the gripping of the cylindrical flexible film body S3 of the air spring S is released. The film body S3 is placed on the transport carriage 5.

  Next, after removing the pin shaft 808 in the flexible film body gripping means 8 and retracting the upper gripping claw 81 and the lower gripping claw 80 to the side of the apparatus body 1, a cylinder for vertical movement in the upper surface plate gripping means 9. 93, the gripping claws 90 of the top plate gripping means 9 are moved downward, and the top plate S1 of the air spring S is placed on the cylindrical flexible film body S3 on the transport carriage 5.

  Next, after the gripping claws 90 of the top plate gripping means 9 are moved outward (opening direction) to release the contact of the air spring S with the top plate S1, the top plate is moved by the cylinder 93 for vertical movement. The gripping claw 90 of the gripping means 9 is moved upward.

  By repeating the above-described operation, the air spring S can be disassembled in the order of the lower surface plate S2, the cylindrical flexible film body S3, and the upper surface plate S1.

  According to the above-described embodiment of the present invention, the apparatus main body 1 is provided with the lower surface plate gripping means 7, the flexible film body gripping means 8, and the upper surface plate gripping means 9, thereby disassembling the air spring. Therefore, it is possible to save labor in the work of dismantling the air spring. Further, since the flexible film body gripping means 8 having the upper gripping claw 81 and the lower gripping claw 80 sandwiching the upper side surface and the lower side surface of the cylindrical flexible film body S3 is provided, in particular, the air spring S The dismantling workability between the upper surface plate S1 and the tubular tubular flexible film body S3 is remarkably improved.

  In the above-described embodiment, the wheel 4 is provided at the lower part of each of the pillars 2a to 2d of the apparatus main body 1 so as to be movable. However, it can be fixed. Further, although the transport carriage 5 for carrying the air spring S into the apparatus main body 1 is used, other transfer devices can also be used.

It is a front view of one embodiment of an air spring dismantling apparatus of the present invention. It is a side view of one Embodiment of the disassembly apparatus of the air spring of this invention shown in FIG. It is a top view of one Embodiment of the dismantling apparatus of the air spring of this invention shown in FIG. It is a front view of the flexible film body holding means 8 which comprises one Embodiment of the disassembly apparatus of the air spring of this invention. It is a top view of the flexible film body holding means which comprises one Embodiment of the disassembly apparatus of the air spring of this invention shown in FIG. It is a side view of the flexible film body holding means which comprises one Embodiment of the disassembly apparatus of the air spring of this invention shown in FIG. It is a front view of the upper side grasping claw in the flexible film body grasping means which constitutes one embodiment of the air spring disassembly apparatus of the present invention. FIG. 8 is a bottom view of the upper gripping claw in the flexible film body gripping means constituting the embodiment of the air spring disassembling apparatus of the present invention shown in FIG. 7.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 7 Lower surface board holding means 8 Flexible film body holding means 9 Upper surface board holding means S Air spring

Claims (5)

An air spring disassembling apparatus for disassembling an air spring having an upper and lower surface plate and a cylindrical flexible film body having ends connected to the upper and lower surface plates,
An apparatus body comprising a pedestal and an upper frame provided on the upper part of the pedestal;
A lower surface plate gripping means provided on a pedestal of the apparatus main body, for gripping the lower surface plate of the air spring from its side;
Flexible film body gripping means provided on a pedestal of the apparatus main body for gripping the cylindrical flexible film body of the air spring from the side;
An air spring disassembling apparatus comprising upper surface plate gripping means provided on the upper frame of the apparatus main body so as to be movable up and down and gripping the upper surface plate of the air spring from the side thereof. In the disassembly apparatus of the air spring of Claim 1,
The flexible membrane gripping means includes a lower gripping claw capable of advancing and retracting to a lower side of the cylindrical flexible membrane body of the air spring,
An upper gripping claw capable of moving forward and backward toward the upper side of the cylindrical flexible membrane body of the air spring, and having a tip portion rotatable in the vertical direction;
A pressing means for pressing the upper gripping claw toward the lower gripping claw;
An air spring disassembling apparatus comprising: a spring that applies a biasing force in a direction in which the upper gripping claw is separated from the lower gripping claw. In the disassembly apparatus of the air spring of Claim 2,
The air spring disassembling apparatus, wherein the upper gripping claw of the flexible film body gripping means has a protrusion on the lower surface of the tip thereof that contacts the upper surface of the tubular flexible film body of the air spring. In the disassembly apparatus of the air spring in any one of Claims 1 thru | or 3,
A dismantling apparatus for an air spring, further comprising a transfer carriage for mounting the air spring and transferring the air spring into the apparatus main body. The disassembly device for an air spring according to claim 4,
An apparatus for disassembling an air spring, characterized in that a guide for guiding the transfer carriage to a central portion of the apparatus main body is provided on a pedestal of the apparatus main body.

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