JP5394174B2 - Reinforcing material attaching method for reducing deflection of rigid train line and reinforcing material attaching device - Google Patents

Description

  The present invention relates to a method for attaching a reinforcing material for reducing deflection of a rigid train line and a reinforcing material attaching device thereof.

The rigid train line does not have a fear of disconnection due to wear of the trolley line unlike the catenary type train line, so that maintenance costs such as wear management can be reduced. Therefore, rigid train lines are employed in subways and tunnel sections from the viewpoint of cost reduction (see Patent Document 1 and Non-Patent Document 1 below).
FIG. 3 is a cross-sectional view showing a state of attachment of a conventional rigid train line.

  In this figure, 101 is a rigid body, 102 is a trolley wire, 103 is an ear for fixing the trolley wire 102 to the rigid body 101, 104 is an ear fixing bolt, 105 is a joint splicer, and 106 is a caulking fastener.

JP-A-5-270302

Takehiro Kobayashi, Masatoshi Shimizu, Takamasa Hayasaka, “A Study on a Method for Reducing Deflection of Rigid Train Lines”, The Institute of Electrical Engineers of Japan, Proceedings of the 2009 Annual Conference of the Institute of Electrical Engineers of Japan, pp. 132, 2009

However, when measuring the amount of deflection of the actually installed rigid train line, it has been confirmed that there is a markedly larger value compared to other spans, and the current collection characteristics at that location have deteriorated. May be a problem.
At present, no effective method for reducing the deflection of the above-described rigid train line has been proposed.

  In view of the above situation, the present invention provides a method for attaching a stiffening-reducing stiffener for a rigid train line, which can reduce the deflection of a rigid-train line with almost no hand on the rigid-body line, which is a heavy object, and its An object is to provide a reinforcing material mounting device.

In order to achieve the above object, the present invention provides
[1] In the method of attaching a reinforcing member for reducing deflection of a rigid train line, the rigid body is used by using the ear fixing bolts (5, 15) fixing the rigid body (1, 11) and the ears (3, 13). A lower reinforcing material fixing bracket (4A, 4B, 14A, 14B) for reinforcing the rigid body (1, 11) and the ears (3, 13 ) is attached to the main body (1, 11), and an upper reinforcing material fixing bracket (7 , 17) and the lower reinforcing member fixing bracket (4A, 4B, 14A, 14B) between the upper bent plane portion (4A-2, 4B-2, 14A-2, 14B-2), 1, 11) sandwiching the upper horizontal portion (1 B, 11 B) and the reinforcing member (6, 16), and the upper bent plane portion (4 A- 2) of the lower reinforcing member fixing bracket (4 A, 4 B, 14 A, 14 B) , 4B-2, 14A-2, 14B-2) and fixing the upper reinforcing material Both end portions and the fastening bolt fixings (7,17) (8A, 8B, 18A, 18B) to be fixed in the features.

[2] A rigid body main body (1, 11) having a T-shaped cross section and a lower end portion of a hanging portion (1A, 11A) of the main body (1, 11) in the reinforcing member mounting device for reducing deflection of the rigid body line. Of the ear (3, 13) for fixing the trolley wire (2, 12) to the upper bent plane (4A-2, 4B-2, 14A-2, 14B-2) and the rigid body (1, 11) The rigid body having hanging parts (4A-1, 4B-1, 14A-1, 14B-1) respectively disposed on one side of the hanging parts (1A, 11A) and the back surface of the ears (3, 13). A pair of lower reinforcing material fixing brackets (4A, 4B, 14A, 14B) for reinforcing the main body (1, 11) and the ears (3, 13), and a hanging portion (1A, 11A) at the lower end of the ear (3, 13) and the lower reinforcing member fixing bracket (4A, B, 14A, 14B) ear fixing bolts (5, 15) for fixing the hanging portions (4A-1, 4B-1, 14A-1, 14B-1), and the rigid body (1, 11) Upper reinforcing member fixing brackets (7, 17) disposed on the upper portions of the reinforcing members (6, 16) installed on the upper horizontal portions (1B, 11B), and the lower reinforcing member fixing brackets (4A, 4B, 14A, 14B) are brought into contact with the upper horizontal portions (1B, 11B) of the rigid body (1, 11), and the upper bent plane portions (4A-2, 4B-2, 14A-2, 14B-2) of the rigid body (1, 11) are brought into contact with each other. The upper bent plane portion (4A-2, 4B-2, 14A-2, 14B-2) of the lower reinforcing member fixing bracket (4A, 4B, 14A, 14B) and the upper reinforcing member fixing bracket (7, 17). It has fastening bolts (8A, 8B, 18A, 18B) that fix both ends. The features.

[3] In the rigid member attachment device for reducing deflection of a rigid train line according to [2] above, the reinforcing member is a reinforcing member (6) having a mountain-shaped cross section.
[4] In the reinforcing member mounting apparatus for reducing deflection of a rigid train line according to [2], the reinforcing member is a reinforcing member (16) having a square cross section.
[5] The reinforcing member mounting apparatus for reducing deflection of a rigid train line according to [2] above, wherein the reinforcing member is a reinforcing member having an I -shaped cross section.

[6] The reinforcing member mounting apparatus for reducing deflection of a rigid electric train wire according to the above [3] or [4] , wherein the reinforcing material (6, 16) is aluminum.

According to the present invention, the following effects can be achieved.
(1) Since the rigid body and the reinforcing member can be firmly fixed to each other, the effect of reducing the deflection of the rigid train line is great.
(2) Since the upper reinforcing member fixing bracket and the lower reinforcing member fixing bracket are fixed to the rigid body with fastening bolts, the lower reinforcing member fixing bracket can be prevented from falling. Further, since the reinforcing material is sandwiched and fixed by the lower reinforcing material fixing bracket and the upper reinforcing material fixing metal bracket that are fixed so as not to fall, it is possible to prevent the reinforcing material itself from falling.

  (3) Since the ear fixing bolt also serves as the fixing bolt of the lower reinforcing member fixing bracket, the number of parts is small, and the time for installation can be shortened.

It is a schematic diagram which shows the reinforcing material attachment apparatus of the rigid body line which shows 1st Example of this invention. It is a schematic diagram which shows the reinforcing material attachment apparatus of the rigid train line which shows 2nd Example of this invention. It is sectional drawing which shows the attachment state of the conventional rigid train line.

According to the present invention, there is provided a method of attaching a reinforcing member for reducing deflection of a rigid train line using an ear fixing bolt (5, 15) for fixing a rigid body (1, 11) and an ear (3, 13). lower reinforcement fixing bracket (4A, 4B, 14A, 14B) mounting to reinforce the body the rigid body (1, 11) (1, 11) and the ear (3, 13), upper armature fixing bracket (7 , the rigid body between 17) and the lower reinforcing member fixing bracket (4A, 4B, 14A, upper bend plane portion 14B) (4A-2,4B-2,14A -2,14B-2) ( upper horizontal portion of 1, 11) (1B, 11B) and reinforcing material (6, 16) and sandwiched, said lower reinforcing member fixing bracket (4A, 4B, 14A, upper bend plane portion 14B) (4A-2 , 4B-2,14A-2,14B-2 ) and the upper armature fixing fitting Fastening bolt (8A and both end portions of the 7,17), 8B, 18A, fixed at 18B).

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic diagram showing a reinforcing member mounting device for a rigid electric train line according to a first embodiment of the present invention.
In this figure, reference numeral 1 denotes a rigid body, and the rigid body 1 has a T-shaped cross section and has a hanging portion 1A and an upper horizontal portion 1B connected thereto. 2 is a trolley wire, 3 is an ear for fixing the trolley wire 2 to the rigid body 1, 4A and 4B are lower reinforcing member fixing brackets, and the lower reinforcing member fixing brackets 4A and 4B are hanging portions 4A-1 and 4B- 1 and upper bent plane portions 4A-2 and 4B-2. 5 is a bolt for fixing the ear, 6 is a reinforcing member having a mountain-shaped cross section disposed at the upper part of the upper horizontal portion 1B of the rigid body 1, 7 is an upper reinforcing member fixing bracket disposed at the upper part of the reinforcing member 6, and 8A. , 8B are fastening bolts for fixing the upper bent plane portions 4A-2, 4B-2 of the lower reinforcing member fixing brackets 4A, 4B and both end portions of the upper reinforcing member fixing bracket 7.

  In this way, the bending of the rigid body 1 is improved by attaching the reinforcing material 6 having a mountain-shaped cross section to the upper part of the upper horizontal portion 1B of the rigid body 1 at the support point or in the middle of the support body 1 to improve the cross-sectional characteristics. Reduce. At this time, in order to firmly fix the reinforcing member 6 to the rigid body 1, the hanging portions 4A-1 and 4B-1 of the lower reinforcing member fixing brackets 4A and 4B are attached using the ear fixing bolt 5 for fixing the ear 3. Attached to the hanging part 1A of the rigid body 1 and sandwiches the upper horizontal part 1B of the rigid body 1 and the reinforcing member 6 with two types of fixing brackets, the upper reinforcing member fixing bracket 7 and the lower reinforcing member fixing brackets 4A and 4B. The fixing bolts 8A and 8B are fixed.

  By comprising in this way, since the rigid main body 1 and the reinforcing material 6 can be firmly fixed mutually, the reduction effect of the bending of the rigid main body 1 can be enlarged. Further, since the upper reinforcing member fixing bracket 7 and the lower reinforcing member fixing brackets 4A and 4B are fixed to the rigid body 1 with the fastening bolts 8A and 8B, the lower reinforcing member fixing brackets 4A and 4B can be prevented from falling. it can. As described above, since the lower reinforcement member fixing brackets 4A and 4B fixed so as not to fall easily and the upper reinforcement member fixing bracket 7 are sandwiched and fixed, the fall of the reinforcement member 6 itself can be prevented. it can.

Furthermore, since the ear fixing bolt 5 also serves as a fixing bolt for the lower reinforcing member fixing brackets 4A and 4B, the number of parts is small, and the time for mounting can be shortened.
In addition, what is required for the reinforcing material 6 is that it is lightweight and highly rigid and can be installed at low cost. When the rigid body 1 is made of copper, examples of the material of the reinforcing member 6 include lightweight aluminum and titanium, steel with a high Young's modulus, and alumina. Moreover, the length of the reinforcing material 6 was 2500 mm from the surface of material cost and workability, for example. By attaching a 2500 mm reinforcing material, the amount of deflection could be reduced by 20-30%.

FIG. 2 is a schematic diagram showing a reinforcing member mounting device for a rigid electric train line according to a second embodiment of the present invention.
In this figure, 11 is a rigid body, and this rigid body 11 has a T-shaped cross section, and has a hanging part 11A and an upper horizontal part 11B connected thereto. 12 is a trolley wire, 13 is an ear for fixing the trolley wire 12 to the rigid body 11, and 14A and 14B are lower reinforcing member fixing brackets. The lower reinforcing member fixing brackets 14A and 14B are hanging portions 14A-1 and 14B-. 1 and upper bent plane portions 14A-2 and 14B-2. 15 is a bolt for fixing the ear, 16 is a reinforcing member (square pipe) having a cross-sectional shape disposed on the upper horizontal portion 11B of the rigid body 11, and 17 is an upper reinforcing member disposed on the upper portion of the reinforcing member 16. Fixing brackets 18 </ b> A and 18 </ b> B are fastening bolts that fix the upper bent plane portions 14 </ b> A- 2 and 14 </ b> B- 2 of the lower reinforcing member fixing brackets 14 </ b> A and 14 </ b> B and both ends of the upper reinforcing member fixing bracket 17.

In the second embodiment, the same operational effects as in the first embodiment can be achieved.
In addition, as a shape of the reinforcing material used in the present invention, a reinforcing material having an I-shaped cross section may be used instead of the above-described reinforcing material having a mountain shape or a square shape.
Further, by bending the reinforcing material, the effect of reducing the amount of deflection can be further improved.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The method for mounting a reinforcing member for reducing deflection of a rigid train line and the reinforcing member mounting device of the present invention enhance the effect of reducing the amount of deflection by firmly fixing the reinforcing material for reducing the amount of deflection of the rigid train line, It can be used as a tool to improve the current collection performance of trains.

DESCRIPTION OF SYMBOLS 1,11 Rigid body 1A, 11A Hanging part of rigid body 1B, 11B Upper horizontal part of rigid body 2,12 Trolley wire 3,13 Ear 4A, 4B, 14A, 14B Lower reinforcement fixing bracket 4A-1, 4B-1 , 14A-1, 14B-1 Hanging portion of lower reinforcing member fixing bracket 4A-2, 4B-2, 14A-2, 14B-2 Upper bent plane portion of lower reinforcing member fixing bracket 5, 15 Ear fixing bolt 6 Reinforcing material with a mountain-shaped cross section 7, 17 Upper reinforcing material fixing bracket 8A, 8B, 18A, 18B Fastening bolt 16 Reinforcing material with a cross-section of a square shape

Claims (6)

A rigid body (1, 11) and the ear the rigid body to said rigid body (1, 11) by using the fixed and have ear fixing bolts (5,15) and (3,13) (1,11) A lower reinforcing member fixing bracket (4A, 4B, 14A, 14B ) for reinforcing the ears (3, 13) is attached, and an upper reinforcing member fixing bracket (7, 17) and the lower reinforcing member fixing bracket (4A, 4B, 14A ) are attached. the upper horizontal portion of the rigid body (1, 11) between the upper bent flat portion and (4A-2,4B-2,14A-2,14B -2) of 14B) (1B, 11B) and reinforcing material (6, 16), and the upper bent plane part (4A-2 , 4B-2, 14A-2, 14B -2) of the lower reinforcing member fixing bracket (4A, 4B, 14A, 14B ) and the above fastening the two ends of the upper armature mounting brackets (7, 17) a bolt (8A, 8B 18A, 18B) at reduced reinforcement Mounting deflection of rigid catenary, characterized in that the fixing. Cross section rigid body (1, 11) of the T-shaped ear (3, 13 to fix the hanging portion of the rigid body (1, 11) (1A, 11A) contact wire to the lower end of the (2, 12) ) , The upper bent plane portion (4A-2, 4B-2, 14A-2, 14B-2 ) , one side of the drooping portion (1A, 11A) of the rigid body, and the back surface of the ear (3, 13) A pair of reinforcing the rigid body (1, 11) and the ears (3, 13) having hanging portions (4A-1, 4B-1, 14A-1, 14B-1) respectively disposed on the Lower reinforcement member fixing brackets (4A, 4B, 14A, 14B), and lower end portions of hanging portions (1A, 11A) of the rigid body, the ears (3, 13) and the lower reinforcement member fixing brackets (4A, 4B, 14A, the ear fixing bolt for fixing the hanging portion 14B) (5,15), wherein Upper horizontal portion of the body main body and (1B, 11B) upper armature fixed bracket disposed on top of the installed reinforcement on top of the (7, 17), said lower reinforcement fixing bracket (4A, 4B, 14A, upper horizontal portion of the upper bent flat portion 14B) (4A-2,4B-2,14A -2,14B-2) the rigid body (1,11) (1B, is contacted with 11B), said lower reinforcement Fastening bolts (8A, 8B, 18A, 18B) for fixing the upper bent plane portion of the material fixing bracket (4A, 4B, 14A, 14B) and both ends of the upper reinforcing material fixing bracket (7, 17). A reinforcing material mounting device for reducing deflection of a rigid train line, comprising: 3. The apparatus for attaching a reinforcing member for reducing deflection of a rigid electric train wire according to claim 2, wherein the reinforcing member is a reinforcing member (6) having a cross section of a cross section. . 3. The apparatus for attaching a reinforcing member for reducing the deflection of a rigid electric train line according to claim 2, wherein the reinforcing member is a reinforcing member (16) having a square cross section. apparatus.   3. The apparatus for attaching a reinforcing member for reducing deflection of a rigid electric train wire according to claim 2, wherein the reinforcing member is a reinforcing member having an I-shaped cross section. 5. The apparatus for attaching a reinforcing member for reducing deflection of a rigid train wire according to claim 3 or 4 , wherein the material of the reinforcing member (6, 16) is aluminum. .

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