JPH0527301Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rigid overhead contact line support device for supporting a rigid overhead contact line for supplying power to electric trains on tracks.

(Prior Art) In FIG. 4 showing a conventional example, in recent years, in order to facilitate the installation work of the rigid overhead contact line 12 and the guide rail 8, a shared metal fitting 40 is attached to the parapet 5 on the side of the track via an anchor bolt 43. fixed,
A contact line support device has been developed in which the insulator device 11 and the guide rail 8 are jointly supported by the joint fitting 40. In the contact line support device shown in FIG. 4, a guide rail mounting plate (steel plate) 41 is directly superimposed on the track inner side surface of the shared metal fitting 40 inserted into the anchor bolt 43, and the shared metal fitting 40 and the mounting plate 41 are directly overlapped. are integrally fixed between fixing nuts 45.

By the way, when laying the overhead contact line 12 and the guide rail 8 on-site, in order to ensure the current collection performance and the rolling prevention function of the train, the overhead contact line 12 and the guide rail 8 are installed, for example, from the mounting surface 5a of the parapet 5. It is necessary to accurately set the protrusion amounts L1 and L2.

In the structure shown in FIG. 4 above, theoretically, the horizontal distance L3 between the overhead contact line 12 and the guide rail 8 should be set accurately in advance before installation, and each of the shared fittings 40 should be attached to the parapet 5. By adjusting the position of 40, it is possible to accurately set the protrusion amount L1 of the overhead contact line 12 and the protrusion amount L2 of the guide rail 8, but in reality, the degree of smoothness or slope of the mounting surface 5a of the parapet 5 can be set accurately. Due to manufacturing tolerances, it may be necessary to independently adjust only the guide rail 8 after installation.

However, in the structure shown in FIG. 4, the shared fitting 40 is fixed to the anchor bolt 43, and the insulator device 11
is fixed to the synergistic fitting 40 and the protrusion amount of the overhead contact wire 12 is
After setting L1 to an accurate value, it is impossible to adjust only the protrusion amount L2 of the guide rail 8. That is, when the guide rail 8 is adjusted, the amount of protrusion of the overhead contact line 12 is adjusted.
This is because L1 goes crazy.

(Purpose of the invention) The purpose of the invention is to facilitate the installation work by supporting the overhead contact line and the guide rail using common metal fittings and anchor bolts, and also to support the overhead contact line and the guide rail independently even after installation of the overhead contact line. The purpose is to improve the mounting accuracy by making the position adjustable.

(Technical means for achieving the objective) In order to achieve the above objective, the present invention provides a plurality of anchor bolts that protrude horizontally into the track on the mounting surface of the parapet placed on the side of the track. A shared metal fitting and a guide rail mounting plate are inserted into the anchor bolt, and the shared metal fitting is arranged on both sides of the anchor bolt, and its position in the bolt length direction can be freely adjusted by a shared metal fitting fixing nut that is screwed into the anchor bolt. The guide rail mounting plate 30 is clamped and fixed on the other hand.
is clamped and fixed by mounting plate fixing nuts disposed on both sides thereof and screwed onto the anchor bolt, so that the position of the bolt in the longitudinal direction can be freely adjusted, independently of the joining fitting.

(Function) When laying an overhead contact line, insert the shared metal fitting with the insulator device attached to the anchor bolt of the parapet, accurately set the amount of inward protrusion of the overhead contact line, and screw it onto the anchor bolt. Clamp and fix the shared fitting between the fixing nuts.

Then, place the guide rail mounting plate with the guide rail attached at the bottom of the shared bracket, accurately set the amount of inward protrusion of the guide rail, and set it between the guide rail mounting plate fixing nuts screwed onto the anchor bolts. Clamp and secure the mounting plate with. In other words, even after setting the protrusion amount of the overhead contact line,
The amount of protrusion of the guide rail can be adjusted without disturbing the amount of protrusion of the overhead contact line.

(Example) First, a typical example of the tire-type electric train 1 and its track system will be explained with reference to FIG. 3.
is equipped with rubber wheels 6 on the lower side, horizontal guide wheels 7 on both left and right sides, and a current collector shoe 9 on one side. Track 2 is 1 on which rubber wheels 6 are placed.
It has a pair of road surfaces 3, and a parapet 5 extending upward is formed at both left and right ends, and the parapet 5 has a mounting surface 5a perpendicular to the inner side of the track. One of the parapets 5 is provided with an insulator device 11 and a guide rail 8 via a shared fitting 10, and the other parapet 5 is provided with a guide rail 8. Insulator device 1
1 supports, for example, three rigid overhead contact lines 12,
The current collector shoe 9 of the train 1 comes into contact. A guide wheel 7 contacts the guide rail 8.

FIG. 1 shows an enlarged view of the contact line support device, and in this FIG.
In this case, the upper part 10a projects slightly more inward than the lower part 10b.

A plurality of (for example, four) anchor bolts 14 are embedded in the parapet 5 and project horizontally inward of the track, and the lower part 10b of the shared fitting 10 is inserted through the anchor bolts 14. The lower part 1
On both sides of 0b, joint fitting fixing nuts 17 that are screwed into the anchor bolts 14 are arranged, respectively.
The joint fitting 10 is clamped and fixed between the fixing nuts 17 so as to be adjustable in position in the longitudinal direction of the bolt. A bolt 22 and a nut 23 are attached to the upper part 10a of the joint fitting.
A bracket 13 of the insulator device 11 is fixed by means of, for example, three insulators 15 which are spaced apart from each other in the vertical direction. A pedestal 18 is supported on each insulator 15 by upper and lower fasteners 16, and a contact line (trolley main material) 12 is supported on the pedestal 18 by upper and lower ear fittings 20.

The guide rail mounting plate (steel plate) 30 is arranged vertically and on the inner side of the track of the lower part 10b of the shared fitting, and is inserted into the extension part 14a of the anchor bolt 14. Mounting plate fixing nuts 31 that are screwed onto the extensions 14a of the anchor bolts 14 are arranged on both sides of the mounting plate 30, and the position of the guide rail mounting plate 30 in the bolt length direction can be freely adjusted between the fixing nuts 31. It is clamped and fixed. 38 is a lock nut for preventing the fixing nut 31 from rotating. The guide rail 8 has an H-shaped cross section, and the flange portion 8a abuts the guide rail mounting plate 30 and is held down by upper and lower fasteners 34, 35. The end projections 34a, 35a of the fasteners 34, 35 are in contact with the guide rail flange 8a, respectively, and the end 3 on the opposite side of the projections 34a, 35a is in contact with the guide rail flange 8a.
4b, 35b contact the mounting plate 30 via the holders 34c, 35c, and the bolts 36 and nuts 39
Fixed by

In FIG. 2, which shows a view in the direction of the arrows in FIG. 1, the insulators 15 are arranged 3
It is arranged in a square shape, and the mounting bracket 1
An adjustment collar 29 with an eccentric hole is rotatably fitted into the bolt insertion hole 3, and the height of the overhead contact line can be adjusted by rotating the collar 29.

The installation work will be explained. Anchor bolt 1
4, the protruding amount L1 of the overhead contact wire 12 is set accurately, and the shared fitting 10 is clamped and fixed between the fixing nuts 17. Next, the guide rail mounting plate 30 is inserted into the anchor bolt extension part 14a, the guide rail 8 is fixed with the fasteners 34 and 35, and the protrusion amount of the guide rail 8 is
Setting L2 accurately, the mounting plate 30 is clamped and fixed between the fixing nuts 31.

(Effects of the invention) As explained above, according to the invention: (1) Common anchor bolt 14 and shared fitting 1
0 is used to support the insulator device 11 of the overhead contact line 12 and the guide rail 8 on the parapet 5, so there is no need to provide the parapet 5 with a support section or anchor bolt exclusively for the guide rail. That is, there is no need to install the guide rail support section or anchor bolts exclusively for the guide rail on site, and the parapet construction and processing steps are simplified.

(2) Since the mounting plate 30 of the guide rail 8 is held between the fixing nuts 31 so as to be adjustable in the longitudinal direction of the anchor bolt independently of the insulator device 11, there is a manufacturing error in the mounting surface 5a of the parapet 5. Even in cases where the contact line 12 and the guide rail 8 protrude inward from each other, the amount of inward protrusion of the contact line 12 and guide rail 8 can be adjusted independently.
2 and the guide rail 8 on-site installation accuracy is improved.

To explain in detail, logically, in the case of the conventional example shown in FIG.
It is possible to accurately set the amount of protrusion from the parapet mounting surface 5a and attach it to the parapet 5, but in actual practice, manufacturing errors in the degree of smoothness or slope of the parapet 5 may cause problems during train running tests after installation. Depending on the results, final adjustments must be made.

In addition, normally, at the site, the construction work for both the guide rail 8 and the overhead contact line 12 is performed separately because the construction work and the contractors are different. Tram line protrusion amount L1
In addition, the adjustment work for the guide rail protrusion amount L2 is performed separately.

That is, after attaching the shared fitting 40 to which the insulator device 11 is attached (however, the overhead contact line 12 and the guide rail 8 themselves are not attached) to the anchor bolt 43 of the parapet 5, the overhead contact line 12 and the guide rail 8 are installed by different companies. is installed.

In particular, in the case of overhead contact line support devices that are used in large numbers and arranged at intervals of several meters, not only does it take time to readjust them, but they are also heavy (the weight of the rigid overhead contact line is added during readjustment), making adjustment work difficult. It's very time consuming.

In such a situation, the present invention makes it possible to independently adjust the positions of the lower part 10b of the shared fitting 10 and the guide rail mounting plate 30 in the bolt length direction with respect to the common anchor bolt 14, thereby making it possible to adjust the position of the bolt in the longitudinal direction. The inward protrusion amount L1 of the wire 12 and the inward protrusion amount L2 of the guide rail 8 are independently adjustable.

Therefore, even after attaching the shared fitting 10 and the guide rail mounting plate 30 to the anchor bolt 14, the amount of protrusion of the overhead contact line 12, for example,
This allows the amount of protrusion of only the guide rail 8 to be finely adjusted while maintaining L2 at an accurate value. Moreover, since the anchor bolts 14 are common to both, the number of parts can be reduced, the anchor bolt installation work on site can be made easier, and the installation accuracy on site can be improved.

[Brief explanation of the drawing]

Figure 1 is a side view of a rigid overhead contact line support device to which the present invention is applied, Figure 2 is a view taken in the direction of the arrows in Figure 1, Figure 3 is a longitudinal sectional view of the entire track system, and Figure 4 is a side view of a conventional example. It is a diagram. 5... Parapet, 8... Guide rail,
10... Shared metal fittings, 14... Anchor bolt,
17... Shared metal fitting fixing nut, 30... Guide rail mounting plate, 31... Guide rail mounting plate fixing nut.

Claims (1)

[Scope of utility model registration request] On the mounting surface of the parapet placed on the side of the track,
A plurality of anchor bolts protruding horizontally inward from the track are fixed, and the lower part of the shared fitting and the guide rail mounting plate are inserted into the anchor bolts, and the shared fitting is arranged on both sides of the anchor bolt, and the above-mentioned anchor The bolt is clamped and fixed by the joint fitting fixing nut that is screwed onto the bolt so that its position in the longitudinal direction can be freely adjusted.
The guide rail mounting plate is clamped and fixed by mounting plate fixing nuts arranged on both sides of the plate and screwed onto the anchor bolts so as to be able to freely adjust the position in the longitudinal direction of the bolts, independently of the multiplier. An insulator device that supports the rigid overhead contact line is fixed to the upper part of the guide rail, and the amount of protrusion of the rigid overhead contact line inward from the track can be adjusted by adjusting the position of the sharing bracket with respect to the anchor bolt. A rigid overhead contact line support device, characterized in that the rail is fixed, and the amount of inward protrusion of the guide rail can be adjusted independently of the overhead contact line by adjusting the position of a mounting plate relative to an anchor bolt.