Self-generating traffic comprehensive pole

Abstract

The invention provides a self-generating traffic comprehensive rod, and relates to the technical field of traffic equipment. A self-generating traffic comprehensive pole comprises a pole body, a mechanical unit, an electric power unit and a load. The rod body is of a hollow structure, the mechanical unit comprises a fan, a first transmission shaft, a first transmission circular truncated cone, a second transmission circular truncated cone and a second transmission shaft, the fan is installed at the top end of the rod body, a rotating shaft of the fan penetrates into the rod body and is connected with the first transmission shaft in the rod body, and the first transmission circular truncated cone is installed at the bottom of the first transmission shaft and abuts against the second transmission circular truncated cone. The electric power unit comprises a generator and a battery, the load comprises a traffic signal lamp, the second transmission shaft is connected with the generator, the generator is connected with the battery through a rectifier, the battery is connected with the load, and an extrusion oil film damper is installed at the position of a bearing of a rotating shaft of the generator. The invention provides a traffic comprehensive pole capable of self-generating and self-supplying power.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of traffic equipment, in particular to a traffic comprehensive pole with self-power generation. BACKGROUND

[0002] The traffic comprehensive pole is an indispensable part of the current traffic system, and its functions include carrying an indicator and carrying a traffic signal light.

[0003] In the prior art, the power supply of the traffic comprehensive pole carrying the traffic signal light often relies on the power grid, which limits the distribution of the traffic comprehensive pole. SUMMARY

[0004] The present application provides a traffic comprehensive pole with self-power generation, which can provide a traffic comprehensive pole with self-power generation and self-power supply. A traffic comprehensive pole with self-power generation, comprising a pole body, a mechanical unit, an electric power unit and a load; The pole body is a hollow structure and is fixed to the ground, the mechanical unit comprises a fan, a first transmission shaft, a first transmission circular table, a second transmission circular table and a second transmission shaft, the fan is installed at the top end of the pole body, the rotating shaft of the fan penetrates into the pole body and is connected with the first transmission shaft in the pole body, the first transmission shaft is installed with the first transmission circular table at the bottom, the first transmission circular table abuts against the second transmission circular table, the side of the second transmission circular table away from the first transmission circular table is connected with the second transmission shaft, the electric power unit comprises a generator and a battery, the load comprises a traffic signal light, the second transmission shaft is connected with the generator, the generator is connected with the battery through a rectifier, the battery is connected with the load, and an extrusion oil film damper is installed at the bearing of the rotating shaft of the generator.

[0005] Preferably, a plurality of inwardly recessed inner holes are formed in the surface of the first transmission circular table facing the second transmission circular table, a moving piece of ferromagnetic material is installed in the inner hole, a friction head is installed at one end of the moving piece facing the outside of the inner hole, the friction coefficient of the friction head is greater than 0.5, an electromagnet is installed above the first transmission circular table, the electromagnet is fixedly connected to the inner wall of the pole body, the electromagnet is connected with the battery, and under the full power condition of the battery, the magnetic force of the electromagnet on the moving piece is greater than the gravity of the moving piece.

[0006] Preferably, the inner hole comprises a cylindrical portion inside and a conical frustum portion outside in sequence along the axial direction, the diameter of the cylindrical portion is the same as the diameter of one end of the conical frustum portion with smaller end face, the moving piece is of a conical frustum structure, and the area of one end of the moving piece with larger area is not greater than the cross-sectional area of the cylindrical portion.

[0007] Preferably, the self-generating traffic pole further comprises a backup power source for powering the load when the battery is depleted.

[0008] Preferably, the battery is connected in series with a first diode and the load, and the backup power source is connected in series with a second diode and the load, and the voltage of the backup power source is lower than the voltage of the battery.

[0009] Preferably, the battery comprises a voltage detection chip for detecting the voltage of the battery, and when the voltage of the battery is lower than a voltage threshold, the connection between the battery and the load is disconnected by a MOS tube, while the connection between the backup power source and the load is connected.

[0010] Preferably, the first transmission shaft and the second transmission shaft are both mounted inside the pole body through fixed bearings.

[0011] Preferably, the battery comprises a lithium battery, a lead-acid battery and a dry battery.

[0012] Preferably, the abutting surfaces of the first transmission circular platform and the second transmission circular platform are covered with wear-resistant materials, and the wear-resistant materials are metal alloys or ceramic materials.

[0013] Compared with the prior art, the present application has at least the following beneficial effects: By setting up a rod body, a mechanical unit, a power unit, and a load, the mechanical unit includes a fan, a first drive shaft, a first drive frustum, a second drive frustum, and a second drive shaft. The power unit includes a generator and a battery. A squeeze oil film damper is installed at the bearing of the generator shaft. When the fan at the top of the rod body rotates rapidly under the action of wind, it drives the generator shaft to rotate in sequence through the first drive shaft, the first drive frustum, the second drive frustum, and the second drive shaft, thus generating electricity. The alternating current generated by the generator is rectified into direct current by a rectifier and charged into the battery to power the load. By setting the first and second transmission conical platforms to abut each other, under normal wind speed conditions, the first transmission conical platform transmits rotation to the second transmission conical platform through friction, thereby driving the generator shaft to rotate. When the wind speed is too high, the generator shaft rotates at high speed. The high-viscosity lubricating oil inside the squeeze film damper at the shaft bearing support generates dynamic pressure and shear energy during high-speed rotation, thus generating damping force. The damping force is positively correlated with the rotational speed, and at high speeds, the damping force increases exponentially with the rotational speed. Therefore, when the generator speed is too high, the squeeze film damper provides a high damping force. When the damping force exceeds the maximum static friction between the first and second transmission conical platforms, sliding friction occurs between them. The first transmission conical platform continues to accelerate, while the second transmission conical platform maintains its rotational speed. This prevents the fan speed from being too high when the wind is strong, which could lead to excessive generator current and damage to the battery.

[0014] In summary, the self-generating traffic control pole provided by this invention can generate and supply its own electricity, making its distribution unrestricted and its use more flexible and convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a self-generating traffic control pole provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a self-generating traffic control pole provided in an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of another self-generating traffic control pole provided in an embodiment of the present invention.

[0017] In the picture: 1- Rod; 2- Fan; 3-First drive shaft; 4-First transmission frustum; 41-inner hole; 42-Moving parts; 5-Second transmission frustum; 6-Second drive shaft; 7-Generator; 8-battery; 9-Load; 10-Electromagnet; 11-Fixed bearing. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, this embodiment provides a self-generating traffic pole, including a pole body 1, a mechanical unit, a power unit, and a load 9; The pole body 1 is a hollow structure and fixed to the ground. The mechanical unit includes a fan 2, a first drive shaft 3, a first drive frustum 4, a second drive frustum 5, and a second drive shaft 6. The fan 2 is installed at the top of the pole body 1. The shaft of the fan 2 passes through the pole body 1 and is connected to the first drive shaft 3 inside the pole body 1. The first drive frustum 4 is installed at the bottom of the first drive shaft 3. The first drive frustum 4 abuts against the second drive frustum 5. The side of the second drive frustum 5 away from the first drive frustum 4 is connected to the second drive shaft 6. The power unit includes a generator 7 and a battery 8. The load 9 includes a traffic light. The second drive shaft 6 is connected to the generator 7. The generator 7 is connected to the battery 8 through a rectifier. The battery 8 is connected to the load 9. A squeeze oil film damper is installed at the bearing of the shaft of the generator 7.

[0020] In this embodiment, the fan 2 on the upper part of the rod 1 rotates rapidly under the action of wind, and then drives the rotating shaft of the generator 7 to rotate in sequence through the first transmission shaft 3, the first transmission frustum 4, the second transmission frustum 5 and the second transmission shaft 6, so that the generator 7 generates electricity. The alternating current generated by the generator 7 is rectified into direct current by the rectifier and charged into the battery 8 to power the load 9. A diode can be set between the generator 7 and the battery 8 to prevent current backflow. To prevent excessive current in the generator 7 from damaging the battery 8 due to excessively high wind speed when the fan 2 rotates too fast, this embodiment sets the first transmission frustum 4 and the second transmission frustum 5 to abut against each other. Under normal wind speed, the first transmission frustum 4 transmits rotation to the second transmission frustum 5 through friction, thereby driving the shaft of the generator 7 to rotate. When the wind speed is too high, the shaft of the generator 7 rotates at high speed. The high-viscosity lubricating oil inside the compression oil film damper installed at the shaft bearing support generates a dynamic pressure effect and shear energy dissipation when the shaft rotates at high speed, thereby generating a damping force. The damping force is positively correlated with the rotation speed, and at high speed, the damping force increases exponentially with the rotation speed. In summary, when the rotational speed is too high, the squeeze oil film damper provides a high damping force. When the damping force is greater than the maximum static friction between the first transmission frustum 4 and the second transmission frustum 5, sliding friction occurs between the first transmission frustum 4 and the second transmission frustum 5. The first transmission frustum 4 continues to accelerate, while the second transmission frustum 5 maintains its rotational speed. This prevents the problem of excessive current and damage to the battery 8 caused by excessive rotational speed.

[0021] Understandably, the maximum speed of generator 7, the frictional force between the first transmission frustum 4 and the second transmission frustum 5, and the damping of the squeeze oil film damper at maximum speed can be determined sequentially based on the maximum current value of battery 8. The damping of the squeeze oil film damper at maximum speed can be determined based on oil viscosity, oil film thickness, and shaft radius.

[0022] Of course, other dampers can also be selected, such as centrifugal pendulum dampers and eddy current dampers. Extrusion film dampers, which are lower in cost and simpler in structure, are preferred.

[0023] Please refer to Figure 2 and Figure 3 In some embodiments of the present invention, the first transmission frustum 4 has a plurality of inwardly recessed inner holes 41 on the surface facing the second transmission frustum 5. A movable part 42 made of ferromagnetic material is installed in the inner hole 41. A friction head is installed at one end of the movable part 42 facing the outside of the inner hole 41. The friction coefficient of the friction head is greater than 0.3. An electromagnet 10 is installed above the first transmission frustum 4. The electromagnet 10 is fixedly connected to the inner wall of the rod 1. The electromagnet 10 is connected to the battery 8. When the battery 8 is fully charged, the magnetic force of the electromagnet 10 on the movable part 42 is greater than the weight of the movable part 42.

[0024] In this embodiment, the moving part 42 can be drawn into the inner hole 41 by the electromagnet 10 to achieve power-off protection after full charging. Specifically, the electromagnet 10 is connected to the battery 8. When the battery 8 is fully charged, the voltage of the electromagnet 10 is high and the magnetism is strong, which can draw the moving part 42 with the friction head into the inner hole 41. This greatly reduces the maximum static friction between the first transmission frustum 4 and the second transmission frustum 5, thereby causing poor transmission between them and achieving the purpose of stopping or slowing down the rotation of the generator 7. When the battery 8's power decreases, the voltage of the electromagnet 10 decreases, which in turn causes the magnetic force of the electromagnet 10 to decrease. The moving part 42 falls, causing its friction head to contact the second transmission frustum 5, increasing the maximum static friction to restore transmission. In addition, friction material can also be provided at the position of the second transmission frustum 5 corresponding to the inner hole 41 to increase friction.

[0025] In some embodiments of the present invention, the inner hole 41 includes an inner cylindrical portion and an outer frustum portion in sequence along the axial direction. The diameter of the cylindrical portion and the diameter of the smaller end of the frustum portion are the same. The moving member 42 has a frustum structure, and the area of ​​the larger end of the moving member 42 is not greater than the cross-sectional area of ​​the cylindrical portion.

[0026] In this embodiment, when the battery 8 is low on power, the movable part 42 falls. However, its weight is relatively small, and a high coefficient of friction alone is insufficient to provide enough maximum static friction. Therefore, a variable-diameter inner hole 41 is designed, with the lower part of the inner hole 41 being a frustum shape, i.e., having an inclined curved surface. The movable part 42, also frustum-shaped, has a curved surface that matches the frustum portion. When the first transmission frustum 4 rotates, the curved surface of the frustum portion is internally tangent to the curved surface of the movable part 42, giving the movable part 42 a downward thrust. This thrust can be decomposed into a vertically downward component, greatly increasing the maximum static friction between the friction head and the second transmission frustum 5. When the battery 8 is fully charged, the movable part 42 is drawn into the inner hole 41. The movable part 42 first moves upward in the frustum portion. Even if the movable part 42 contacts the inner wall of the frustum portion, it can still slide upward along the inner wall of the frustum portion, eventually entering the cylindrical portion. After entering the cylindrical portion, even if the first transmission frustum 4 rotates rapidly, the movable part 42 will not be thrown out of the cylindrical portion.

[0027] Understandably, a material with a low coefficient of friction can be used on the inner wall of the frustum section.

[0028] In some embodiments of the present invention, a self-generating traffic pole also includes a backup power supply for supplying power to the load 9 when the battery 8 is depleted.

[0029] In this embodiment, when the battery 8 is depleted and there is no wind power to charge it, the backup power source can be switched to power the load 9. After the battery 8 is fully charged, the power supply to the battery 8 is restored and the backup power source is disconnected.

[0030] In some embodiments of the present invention, battery 8 is connected in series with a first diode and load 9, and backup power supply is connected in series with a second diode and load 9. The voltage of backup power supply is lower than the voltage of battery 8. When the voltage of battery 8 is lower than the voltage of backup power supply, backup power supply supplies power to the load.

[0031] In some embodiments of the present invention, the battery 8 includes a voltage detection chip, a MOSFET for controlling the switching of the battery 8 and the backup power supply, the voltage detection chip is used to detect the voltage of the battery 8, and when the voltage of the battery 8 is lower than the voltage threshold, the connection between the battery 8 and the load 9 is disconnected through the MOSFET, while the connection between the backup power supply and the load 9 is connected.

[0032] In some embodiments of the present invention, both the first drive shaft 3 and the second drive shaft 6 are mounted inside the rod body 1 via a fixed bearing 11. The fixed bearing 11 rotatably connects the first drive shaft 3 and the second drive shaft 6 and provides radial and axial support.

[0033] In some embodiments of the present invention, battery 8 includes lithium battery, lead-acid battery and dry cell battery.

[0034] In some embodiments of the present invention, the contact surfaces of the first transmission frustum 4 and the second transmission frustum 5 are covered with a wear-resistant material, which is a metal alloy or a ceramic material.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-generating traffic control pole, characterized in that, It includes a pole (1), a mechanical unit, an electrical unit, and a load (9); The rod (1) is a hollow structure and fixed to the ground. The mechanical unit includes a fan (2), a first drive shaft (3), a first drive frustum (4), a second drive frustum (5), and a second drive shaft (6). The fan (2) is installed at the top of the rod (1). The shaft of the fan (2) passes through the rod (1) and is connected to the first drive shaft (3) inside the rod (1). The first drive frustum (4) is installed at the bottom of the first drive shaft (3). The first drive frustum (4) abuts against the second drive frustum (5). The side of the second drive frustum (5) away from the first drive frustum (4) is connected to the second drive shaft (6). The power unit includes a generator (7) and a battery (8). The load (9) includes a traffic light. The second drive shaft (6) is connected to the generator (7). The generator (7) is connected to the battery (8) through a rectifier. The battery (8) is connected to the load (9). A squeeze oil film damper is installed at the bearing of the shaft of the generator (7).

2. The self-generating traffic control pole according to claim 1, characterized in that, The first transmission truncated cone (4) has multiple inwardly recessed inner holes (41) on the surface facing the second transmission truncated cone (5). A moving part (42) made of ferromagnetic material is installed in the inner hole (41). A friction head is installed at one end of the moving part (42) facing the outside of the inner hole (41). The friction coefficient of the friction head is greater than 0.

3. An electromagnet (10) is installed above the first transmission truncated cone (4). The electromagnet (10) is fixedly connected to the inner wall of the rod (1). The electromagnet (10) is connected to the battery (8). When the battery (8) is fully charged, the magnetic force of the electromagnet (10) on the moving part (42) is greater than the weight of the moving part (42).

3. A self-generating traffic control pole according to claim 2, characterized in that, The inner hole (41) includes an inner cylindrical part and an outer frustum part in sequence along the axial direction. The diameter of the cylindrical part and the diameter of the smaller end of the frustum part are the same. The moving part (42) is a frustum structure. The area of ​​the larger end of the moving part (42) is not greater than the cross-sectional area of ​​the cylindrical part.

4. The self-generating traffic control pole according to claim 1, characterized in that, It also includes a backup power supply for supplying power to the load (9) when the battery (8) is depleted.

5. A self-generating traffic control pole according to claim 4, characterized in that, The battery (8) is connected in series with the first diode and the load (9), the backup power supply is connected in series with the second diode and the load (9), and the voltage of the backup power supply is lower than the voltage of the battery (8).

6. A self-generating traffic control pole according to claim 4, characterized in that, The battery (8) includes a voltage detection chip, a MOS transistor for controlling the switching of the battery (8) and the backup power supply. The voltage detection chip is used to detect the voltage of the battery (8). When the voltage of the battery (8) is lower than the voltage threshold, the connection between the battery (8) and the load (9) is disconnected through the MOS transistor, and the connection between the backup power supply and the load (9) is connected at the same time.

7. A self-generating traffic control pole according to claim 1, characterized in that, The first drive shaft (3) and the second drive shaft (6) are both installed inside the rod body (1) via fixed bearings (11).

8. A self-generating traffic control pole according to claim 1, characterized in that, The battery (8) includes lithium batteries, lead-acid batteries and dry batteries.

9. A self-generating traffic control pole according to claim 1, characterized in that, The contact surfaces of the first transmission frustum (4) and the second transmission frustum (5) are covered with wear-resistant material, which is a metal alloy or ceramic material.

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