JPH0647672U - Bridge vibration power generator - Google Patents

Abstract

(57) [Summary] [Purpose] To generate electricity by using the vibration energy of the bridge generated when the vehicle is passing. [Structure] One end of the bridge girder is rotatably supported on one abutment by a pin, and the other end of the bridge girder is supported on the other abutment so as to be vertically movable via a spring. A conversion mechanism for converting the vertical motion of the other end of the bridge girder into a rotary motion is provided between the generator and the rotary shaft of the converter connected to the generator via the rotation speed increasing mechanism, and the storage battery is connected to the output terminal of the generator. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bridge vibration power generator that generates power by utilizing the vibration of a bridge.

[0002]

[Problems to be solved by the device]

 Conventionally, there is no one that uses the vibration energy of the bridge to generate electricity, and the power source for the electric signs and signals installed in the bridge is exclusively obtained from the electric power company, which increases costs. was there. The present invention focuses on the fact that a steel girder bridge vibrates greatly in the vertical direction when a vehicle is passing, and by obtaining a bridge vibration power generation device that uses this vibration to generate power for the signs, traffic lights, etc. The purpose is to be able to utilize.

[0003]

[Means for Solving the Problems]

 The present invention is configured as follows in order to achieve the above object. That is, one end of the bridge girder is rotatably supported on one abutment by a pin, and the other end of the bridge girder is supported on the other abutment so as to be movable up and down through a beam, so that the other end of the bridge girder and the other abutment are supported. A conversion mechanism for converting the vertical motion of the other end of the bridge girder into a rotary motion is provided between the generator and the rotary shaft of the converter, which is connected to the generator via the speed increasing mechanism, and the storage battery is connected to the output terminal of the generator. It is configured to do.

[0004]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a side view of a bridge to which the present invention is applied, FIG. 2 is an enlarged side view of its portion A, and FIG. 3 is a cross-sectional view of a conversion mechanism part for converting vertical movement into rotational movement. In FIGS. 1 and 2, reference numeral 1 denotes a bridge, in which a left end of a steel bridge girder 2 made of H steel is supported by a fulcrum shaft 3 on a left abutment 4 so as to be vertically swingable, and the bridge girder is supported. The right end of 2 is supported by a spring 5 on the step 6a of the right abutment 6 so as to be vertically movable. The right end portion of the bridge girder 2 is slidably connected to a vertically elongated hole 9 of a bracket 8 fixed to the abutment 6 with a movable shaft 7 attached to the right end surface thereof, and the elongated hole 9 and the movable shaft 7 are connected to each other. As a result, the amount of vertical movement of the right end of the bridge girder 2 is restricted to a maximum of about 30 mm. In addition, 1a is a floor plate laid on the upper surface of the bridge girder 2.

Between the right end of the bridge girder 2 and the abutment 6 on the right side, a conversion mechanism 10 for converting the vertical movement of the right end of the bridge girder 2 into rotational movement is provided. This conversion mechanism 10 is as shown in FIGS. That is, the case 12 is erected and fixed to the base 11 fixed to the step 6a of the abutment 6, and the turbine 13 is attached to the upper part of the case 12. The turbine 13 accommodates turbine blades 15 in a casing 14 and is rotatably supported by a casing 14 by a rotating shaft 16. Further, a cylinder 17 is arranged above the casing 14 and communicates with the left portion of the casing 14 from the tangential direction by a communication passage 17c. A piston 18 is slidably fitted in the cylinder 17 in the vertical direction, and a rod 19 connected to the piston 18 is projected upward from the case 12. The upper end of the rod 19 is brought into contact with the lower surface of the H steel bracket 20 fixed to the upper portion of the bridge girder 2.

The casing 14 and the cylinder 17 are filled with hydraulic oil (a), the upper part of the casing 14 and the upper part of the cylinder 17 are communicated with each other by a return oil passage 21, and the return oil passage 21 is provided with a casing. 14 is provided with a check valve 22 which allows the working oil (A) to flow from the cylinder 17 to the cylinder 17, and the piston 18 allows working oil (A) to flow from the upper chamber 17a of the cylinder 17 to the lower chamber 17b. The check valve 23 is attached.

A generator 25 is installed in the lower part of the case 12, and the generator 25 and the above-described turbine 13 are connected via a rotation speed increasing mechanism 26. That is, a large-diameter drive sprocket 27 is attached to the rotary shaft 16 of the turbine 13, a small-diameter driven sprocket 28 is attached to the rotary shaft of the generator 25, and a chain 29 is suspended between the drive sprocket 27 and the driven sprocket 28. . Further, the storage battery 30 is connected to the output terminal of the generator 25, and the terminal of the storage battery 30 is connected to a lightning type sign, a traffic light, etc. (not shown) installed in the bridge 1 part.

According to the above-described embodiment, when a vehicle passes through the bridge 1, the right end of the bridge girder 2 moves downward against the reaction force of the spring 5 due to the load of the vehicle, and the rod 19, via the bracket 20, The piston 18 moves downward. When the piston 18 moves downward, the check valve 23 is closed, the hydraulic oil (a) in the lower chamber 17b of the cylinder 17 is discharged into the casing 14 from the communication passage 17c, and the turbine 13 is discharged as shown in FIGS. It is rotated (counterclockwise) in the direction of arrow (a). When the turbine 13 is rotated, the drive sprocket 27, the chain 29, and the driven sprocket 28 cause the generator 25 to rotate at a higher speed, and the storage battery 30 is charged with electricity generated by the generator 25. Excess hydraulic oil (a) flowing into the casing 14 from the lower chamber 17b of the cylinder 17 is discharged to the return oil passage 21, opens the check valve 22, and flows into the upper chamber 17a of the cylinder 17.

When the load on the vehicle is released, the right end of the bridge girder 2 moves upward due to the reaction force of the spring 5, and the rod 19 and the piston 18 move upward via the bracket 20. When the piston 18 moves upward, the check valve 22 on the return oil passage 21 side is closed, the check valve 23 on the piston 18 side is opened, and the hydraulic oil (a) in the upper chamber 17a of the cylinder 17 is transferred to the lower chamber 17b. To prepare for the next drive of the turbine 13.

4 and 5 show a second embodiment of the conversion mechanism 10. That is, a cylinder 35 accommodating hydraulic oil (c) is attached to the upper part of the case 12, a rod 37 of a piston 36 moving up and down in the cylinder 35 is projected upward from the case 12, and the rod 37 is The upper end of the bracket is brought into contact with the lower surface of the H steel bracket 20 fixed to the bridge girder 2. An engaging body 38 having radial vanes 38a is arranged below the cylinder 35, and the engaging body 38 is rotatably supported by the case 12 via a rotary shaft 39.

A guide pipe 40 is hung on the bottom of the cylinder 35 in the tangential direction of the engaging body 38, and a pressure rod 41 is slidably fitted to the lower portion of the guide pipe 40. An engaging claw 43 is connected to the lower end of the pressure rod 41 via a pin 42 so as to be movable left and right in FIG. 5, and the lower end of the engaging claw 43 is brought into contact with the blade 38a in the tangential direction. The engaging claw 43 is rotationally biased toward the engaging body 38 (to the right) by the return spring 44 and the pressing tool 45.

The rotating shaft 39 is connected to the generator 25 installed in the lower portion of the case 12 via the rotation speed increasing mechanism 47. That is, a large-diameter drive gear 48 is attached to the rotary shaft 39, and the drive gear 48 is meshed with a small-diameter gear 50a of a stepped floating gear 50 rotatably supported by a lower intermediate shaft 49 to form the stepped floating gear. A large-diameter gear (sprocket) 50b of 50 is connected via a chain 51 to a small-diameter driven sprocket 28 attached to the rotating shaft of the generator 25. Further, the storage battery 30 is connected to the output terminal of the generator 25, and the terminal of the storage battery 30 is connected to a lightning type sign, a traffic light, etc. (not shown) installed in the bridge 1. 4 and 5, the parts having the same reference numerals as those in FIGS. 2 and 3 have substantially the same structure as those in FIGS. 2 and 3.

According to the second embodiment described above, the right end portion of the bridge girder 2 moves downward against the reaction force of the panel 5 due to the load caused by the passage of the vehicle, and the rod 37 and the piston 36 move downward via the bracket 20. When moved to, the hydraulic oil (c) in the lower chamber of the cylinder 35 flows toward the guide pipe 40 and moves the pressure rod 41 downward. Then, the engaging claw 43 pushes the wing 38a downward to rotate the engaging body 38 in the arrow (a) direction (counterclockwise) in FIG. When the engaging body 38 is rotated, the generator 25 is rotated through the drive gear 48, the small diameter gear 50a, the large diameter gear 50b, the chain 51, and the driven sprocket 28, and the electric power generated by the generator 25 is generated. Is charged in the storage battery 30.

[0014]

[Effect of device]

 As is clear from the above description, since the present invention uses the vibration energy of the bridge generated when the vehicle is passing to generate electricity, it can be used as a power source for lightning-type signs and traffic lights installed in the bridge. Therefore, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a bridge to which the present invention is applied.

FIG. 2 is an enlarged side view of part A of FIG.

FIG. 3 is a sectional view of a conversion mechanism unit for converting vertical movement into rotary movement according to the present invention.

FIG. 4 is a side view of an essential part corresponding to FIG. 2 showing another embodiment according to the present invention.

FIG. 5 is a cross-sectional view of a conversion mechanism unit according to another embodiment of the present invention.

[Explanation of symbols]

 1 bridge 1a floor plate 2 bridge girder 3 fulcrum shaft 4 abutment 5 spring 6 abutment 6a step 7 moving shaft 8 bracket 9 slot 10 conversion mechanism 11 base 12 case 13 turbine 14 casing 15 turbine blade 16 rotating shaft 17 cylinder 17a upper chamber 17b Chamber 17c Communication passage 18 Piston 19 Rod 20 Bracket 21 Return oil passage 22 Check valve 23 Check valve 25 Generator 26 Rotation speed increasing mechanism 27 Drive sprocket 28 Driven sprocket 29 Chain 30 Storage battery 35 Cylinder 36 Piston 37 Rod 38 Engagement body 39 Rotating shaft 40 Guide pipe 41 Pressure rod 42 Pin 43 Engaging claw 44 Return spring 45 Pressing tool 47 Rotation speed increasing mechanism 48 Drive gear 49 Intermediate shaft 50 Stepped idle gear 50a Small diameter gear 50b Large diameter gear (sprocket) 51 Chi Oil (a) Hydraulic oil (c) Hydraulic oil

Claims (1)

[Scope of utility model registration request] 1. One end of the bridge girder is rotatably supported on one abutment by a pin, and the other end of the bridge girder is supported on the other abutment by a spring so as to be movable up and down, and the other end of the bridge girder and the other abutment. A conversion mechanism for converting the vertical motion of the other end of the bridge girder into a rotary motion is provided between the generator and the generator, and the generator is connected to the rotary shaft of the converter via the rotation speed increasing mechanism, and the storage battery is connected to the output terminal of the generator A bridge vibration power generator characterized in that