KR200312651Y1 - Washer bolt used for fastening device which awwests railroad sound and vibration - Google Patents

Abstract

The present invention utilizes existing sleepers and in-concrete concrete facilities, but allows the sleepers and rails to be fixedly installed on concrete, effectively absorbing shocks and loads from each direction, thereby increasing dust resistance and minimizing wear of the rails. In order to ensure a solid fastening force by increasing the cross-sectional area with the spring washer while manufacturing the head of the fastening bolt is applied to the track vibration isolator to combine the rail clip and the clip hook in an integrated shape;

A gauge spacer disposed on the sleeper block, a base plate laminated on the gauge spacer, a rail disposed on the base plate, and a clamp bolt disposed on one side of the lower end of the rail to press-fix the rail on the base plate. And a tension clamp inserted into the clamp bolt to press the rail bottom portion of the rail with elastic force to be fastened and clamped with a clamp nut assembled by the clamp bolt, and to penetrate the base plate and the gauge spacer outside the tension clamp. In the railway track anti-vibration soundproof fastening device that is bolted to the sleeper block,

There is an excellent effect of providing a washer bolt for railroad track anti-vibration soundproof fastening device formed at the lower end of the head of the bolt to form a washer part integrated with a predetermined thickness and diameter while being larger than the diameter of the head part.

Description

WASHER BOLT USED FOR FASTENING DEVICE WHICH AWWESTS RAILROAD SOUND AND VIBRATION}

The present invention relates to a washer bolt for a railroad anti-vibration soundproof fastening device, and more specifically, using existing sleepers and icon concrete facilities, so that the sleepers and rails are fixedly installed on the concrete, so that the impact from each direction and By absorbing the load effectively, it is applied to the track vibration isolator to increase the dust resistance and minimize the wear of the rail. The present invention relates to a washer bolt for a railroad track anti-vibration soundproof fastening device intended to increase the cross-sectional area to maintain a secure fastening force.

In general, railways, which have occupied an important position as the main infrastructure of the country, should be able to cope with the demands for speed and comfort along with the explosive demand for transportation in accordance with the rapidly changing social structure and living environment. The ease of maintenance is also an important consideration in the construction of railroads because of the difficulty of supplying orbital maintenance workers due to the increase in living standards and avoiding dangerous and hard work.

Accordingly, gravel roads that have been applied to railroads have been replaced with concrete roads in consideration of the convenience of maintenance and the blocking of environmental pollution sources, especially in the case of subways, where the ease of maintenance is an important issue as public transportation in the city. It is even more so.

Since the city's subway roads install rails on concrete roads, the dustproof effect is inevitably inferior to conventional gravel roads. Therefore, severe noise and vibration are generated by the impact and friction between rails and wheels in the subway. It is unpleasant to the public and adversely affects the structures, railway vehicles and related facilities such as rails.

Referring to Figure 1 briefly described with reference to the conventional track anti-vibration device constructed in steel bridges, subway sections, etc. made of a concrete island structure for the purpose of reducing such adverse effects.

Conventional orbital dustproof device is provided on the concrete, as shown in Figure 1, the dustproof box 210 and its transverse and longitudinal inner cross-section is formed in an inverted trapezoidal shape; A dustproof pad 220 installed on the inner bottom of the dustproof box 210; First and second sponge pads 230 and 231 installed to be in contact with both sides of the anti-vibration pad 220 to fix the position of the anti-vibration pad 220; A sleeper block 240 embedded in the dustproof box 210 so that its bottom surface is in contact with the top surface of the dustproof pad 220; A rail pad 250 positioned on an upper surface of the sleeper block 240; A rail 260 positioned on an upper surface of the rail pad 250; A pair of clip hooks 270 mounted on an upper surface of the sleeper block 240 to be spaced apart from the transverse extension part 260a below the rail 260 by a predetermined interval; A pair of adjustment packings 280 inserted between the ends of the transverse extension portions 260a of the rails 260 and the respective clip hooks 270; The lower end of one side is in close contact with the upper surface of the sleeper block 240, the other end of the rail clip is mounted on the respective clip hooks 270 to press and press the upper surface of the transverse extension portion (260a) of the rail 260 290; A guard block 310 coupled to the clip hanger 270 via a fixing pin 300; Through a spring washer 330 and the upper portion of the rail clip 290 is fastened to the upper portion of the guard block 310, the fastening bolt 320 for coupling the rail clip 290 and the clip hook 270 It is composed.

Here, the anti-vibration pad 220 is made of a high elastic synthetic pressure molded rubber material to ensure reliability, the side of the sleeper block 240 to a thickness that can be spaced apart from the inner side of the dustproof box 210 by a predetermined interval. Is done. That is, while the thickness of the conventional anti-vibration pad is 12 mm, in this embodiment, the anti-vibration pad 220 has a thickness of 25 mm, so that the vertical position of the sleeper block 240 is 13 mm higher than that of the conventional case. The front, rear, left, and right sides of the 240 are spaced about 0.7 mm from the inner side of the dustproof box 210.

In addition, the conventional track vibration isolator prevents a direct shock is transmitted between the rail and the concrete phase by the load applied when the train passes over the rail 260 of the track to mitigate noise and vibration during train operation, It is to reduce the fatigue applied to each structure.

However, in the conventional track vibration isolator as described above, the sleeper 240 constituting the track up and down the left and right shock loads generated when the train travels on the track is directly in contact with the concrete concrete and the rail 260 is Since it is received in a fixed state against concrete, the impact load is not sufficiently absorbed, and the effect of reducing noise and vibration is insignificant. Furthermore, in the curved portion of the track, uneven and wavy wear of the head of the rail 260 is severely damaged. There is a problem that proceeds rapidly.

In addition to the above problems, the fastening bolt 320 is formed of a screw 321 and a head 322 formed in a polygon, and is interposed with a spring washer 330 to improve the fastening force. The spring washer 330 is formed in the upper and lower light shape to increase the contact with the head (), but there is a problem that the increase in cross-sectional area due to the limited shape of the head 322 is not easy.

That is, because the head portion 322 is limited in the shape of the spring washer 330, there is a limit to the increase in the tightening force, in particular, the relaxation of the fastening force of the fastening bolt 320 during the transmission of vibration in accordance with the operation of the railway vehicle There is a problem that occurs to cause a safety accident.

It is proposed to solve the problems of the prior art as described above, the purpose of the present invention is to utilize the existing sleepers and icon concrete facilities, but to prevent the sleepers and rails to be installed in a fixed manner on the concrete road impact from each direction And washer is applied to the track vibration isolator to increase the dust resistance and minimize the wear of the rail by effectively absorbing the load. To increase the cross-sectional area of the railroad track to provide a washer bolt for the anti-vibration soundproof fastening device to secure a secure fastening force.

1 is a view showing that a conventional bolt is applied to the railroad tracks soundproof fastening device according to the prior art.

Figure 2 is a view showing that the washer bolt is applied to the railroad soundproof soundproof fastening device according to the present invention.

Figure 3 is a view showing the rail washer bolt and washer portion forming example according to the present invention (a) waveform portion, (b) uneven portion, (c) is a view showing the waveform portion.

* Description of the symbols for the main parts of the drawings *

1: Railway track dustproof soundproof fastening device 2: Washer bolt

4: sleeper block 6: gauge spacer

8: Base plate 10: Rail

12: Lower rail part 14: Clamp bolt

16: Clamp Nut 18: Tension Clamp

20: head part 22: washer part

24: Spring washer 26: Plate pad

The present invention to realize this

A gauge spacer disposed on the sleeper block, a base plate laminated on the gauge spacer, a rail disposed on the base plate, and a clamp bolt disposed on one side of the lower end of the rail to press-fix the rail on the base plate. And a tension clamp inserted into the clamp bolt to press the rail bottom portion of the rail with elastic force to be fastened and clamped with a clamp nut assembled by the clamp bolt, and to penetrate the base plate and the gauge spacer outside the tension clamp. In the railway track anti-vibration soundproof fastening device that is bolted to the sleeper block,

The railroad tracks anti-vibration soundproof fastening comprising a washer portion formed at least one of a flat surface, a nuling portion, an uneven portion, and a corrugated portion while being integrated with a predetermined thickness and a diameter while being larger than the diameter of the head portion at the bottom of the head of the bolt To provide a washer bolt for the device.

The washer bolt for the railroad dustproof soundproof fastening device is to fix the fastening force on the sleeper block by passing both members of the base plate on which the railroad rail is installed and the gauge spacer together, thereby maintaining the fastening force even when the railroad vehicle is driven. It is a technology that keeps fastening firmly by suppressing elastic force through the enlarged cross-sectional area with the spring washer.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

Figure 2 is a view showing that the washer bolt is applied to the railroad track vibration-proof soundproof fastening device according to the present invention, Figure 3 is a waveform of the washer bolt and washer part formation according to the present invention (a) waveform, (b A) uneven portion and (c) waveform portion.

The washer bolt 2 applied to the railroad track dustproof soundproofing device 1 includes a gauge spacer 6 disposed on the sleeper block 4 and a base plate 8 laminated on the gauge spacer 6. And a rail 10 disposed on the base plate 8, a clamp bolt 14 disposed on one side of the rail lower end 12 to press-fix the rail 10 on the base plate 8, The tension clamp 18 inserted into the clamp bolt 14 and disposed to press the rail lower end 12 of the rail 10 with an elastic force and fastened and fixed by a clamp nut 16 assembled to the clamp bolt 14 is fixed thereto. And a washer bolt (2) fastened on the sleeper block (4) through the base plate (8) and the gauge spacer (6) to the outside of the tension clamp (18).

At the lower end of the head portion 20 of the washer bolt 2 is formed by forming a washer portion 22 which is integrated with a predetermined thickness and diameter while being larger than the diameter of the head portion 20.

Since the washer bolt 2 forms the washer part 22, it does not need to provide a washer separately, thereby reducing the number of parts and reducing the number of working hours, thereby improving workability.

In addition, the washer portion 22 may have a larger diameter than the head portion 20 to increase the cross-sectional area, thereby increasing the contact area with the spring washer 24, thereby increasing the pressure of the spring washer 24.

In addition, it is possible to change the shape of the spring washer 24 by expanding the cross-sectional area of the washer 22, so that the elastic force can be increased, so that the base plate 8 on the plate pad 26 interposed with the crushing pressure is firmly secured It will be fixed.

When the spring washer 24 is interposed, the flat washer 28 is inserted in advance so that the spring washer 24 comes into contact with the base plate 8 so that the spring washer 24 can be easily exerted.

The washer 22 has a spring washer 24 to form a knurling portion a or to form an uneven portion b or a corrugated portion c to increase frictional force between the contact surface and the spring washer 24. The surface contact force is increasing.

It is not limited to the above-mentioned knurling portion (a), uneven portion (b), corrugated portion (c) can be formed in various ways to increase the contact surface.

Referring to the operation of the present invention made as described above, the washer bolt (2) for the railroad track anti-vibration soundproof fastening device comprises two members of the base plate (8) and the gauge spacer (6) on which the railroad rail (10) is installed. By penetrating and fixing together on the sleeper block (4), through the cross-sectional area with the spring washer (24) interposed with the spring washer 24 to maintain the fastening force in the vibration caused by the operation of the railway vehicle to suppress the elastic force to maintain the fastening do.

That is, as the diameter of the washer portion 22 of the washer bolt 2 is integrally formed, the surface contact with the interposed spring washer 24 can be increased.

On the other hand, by forming the washer portion (a), uneven portion (b), the corrugated portion (c) in the washer portion 22 to bring the enlargement of the contact surface to maintain the maximum impact of the elastic force while maintaining a strong fastening force.

In addition, it is possible to increase the contact by the deformation of the spring washer 24, so that the enlarged pressure is applied to the washer bolt (2) to easily overcome the vibration transmitted according to the driving of the vehicle to maintain a secure fastening Done.

Since the washer bolt is used in the construction of the above-mentioned railway track anti-vibration soundproof fastening device, it is possible to increase the cross-sectional area with the spring washer by the washer part, so that the fastening force is increased. Therefore, it is a useful design for the railway rail construction material industry to improve the reliability of construction.

Claims (1)

A gauge spacer disposed on the sleeper block, a base plate laminated on the gauge spacer, a rail disposed on the base plate, and a clamp bolt disposed on one side of the lower end of the rail to press-fix the rail on the base plate. And a tension clamp inserted into the clamp bolt to press the rail bottom portion of the rail with elastic force to be fastened and clamped with a clamp nut assembled by the clamp bolt, and to penetrate the base plate and the gauge spacer outside the tension clamp. In the railway track anti-vibration soundproof fastening device that is bolted to the sleeper block, Rail tracks, characterized in that the lower end of the head portion of the bolt is integrated with a predetermined thickness and diameter while being larger than the diameter of the head portion and provided with a washer portion formed at least one of a flat surface, a nuling portion, an uneven portion, and a wave portion on the contact surface. Washer bolt for dustproof soundproof fastener.