Power supply device of highway tunnel

Abstract

The utility model relates to the technical field of power generation devices, in particular to a power supply device of a highway tunnel, which comprises a base, and a kinetic energy conversion device, a power transmission device and a power generation device are arranged on the base. The kinetic energy conversion device comprises a sliding shaft, a spring, a fixator and a pressed rod, the fixator is fixedly connected to the top of the base, the two ends of the sliding shaft are welded and fixed into the fixator, and the sliding shaft is sleeved with the bottom end of the pressed rod and the spring; when a vehicle passes, downward pressure is applied to the pressed rod, the pressure is converted into mechanical kinetic energy, and the kinetic energy is subjected to speed regulation through the gear system, is transmitted to the motor system through the transmission device and the direction converter and is finally converted into electric energy to be supplied to tunnel lighting or other power equipment for use. The device can adapt to the low-temperature environment of the cold tunnel, further improves the power generation efficiency through the thermoelectric power generation technology, and has a wide application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to power generation device technical field, specifically is a power supply device of highway tunnel. BACKGROUND

[0002] In the operation process of the highway tunnel in the cold region, the severe weather conditions bring challenges to the power supply of tunnel lighting and other equipment. The traditional power supply mainly relies on external power grid, which not only has high cost, but also is easy to be affected by the stability of power supply. In addition, the high dependence of lighting and safety facilities in the tunnel on power makes the existing power supply mode often face the problems of power interruption and power shortage, which not only threatens the safety of the tunnel, but also increases the operating cost.

[0003] Severe environmental conditions such as low temperature, snow accumulation and freezing further increase the difficulty of maintaining power supply facilities. In extreme environments, traditional power supply equipment is prone to failure, resulting in unstable power supply and affecting the normal operation of the tunnel. In the face of these environmental challenges, tunnel operators urgently need an innovative power supply solution to ensure the stable operation of equipment in the tunnel and improve the safety of passing. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a power supply device for highway tunnel to solve the problems raised in the background.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A power supply device for highway tunnel, comprising a base, a kinetic energy conversion device, a power transmission device and a power generation device are arranged on the base;

[0007] The kinetic energy conversion device comprises a sliding shaft, a spring, a fixer and a pressure rod, wherein the fixer is fixedly connected to the top of the base, both ends of the sliding shaft are welded and fixed in the interior of the fixer, and the bottom end of the pressure rod and the spring are sleeved on the sliding shaft;

[0008] The power transmission device comprises a transmission rod support fixed to the top of the base, a transmission shaft rotatably connected to the transmission rod support, a variable speed gear fixedly connected to the transmission shaft, and the variable speed gear comprising a large guide wheel and a small guide wheel;

[0009] Preferably, the pressure rod is provided with a rack structure on one side, and the pressure rod and the small guide wheel are engaged, so as to drive the small guide wheel to rotate when the pressure rod moves up and down under pressure.

[0010] Preferably, the spring is located at the bottom of the pressure rod, and both ends of the spring are fixedly connected with the pressure rod and the fixer respectively; the large guide wheel and the small guide wheel are fixedly connected, and both are fixed on the transmission shaft.

[0011] Preferably, the power transmission device further comprises a bearing support, the bearing support is installed on the top of the base, a transmission rod is rotatably connected to the bearing support through a bearing, and a direction converter is arranged on the transmission rod.

[0012] Preferably, the direction converter comprises a conversion gear and a conversion disc, the conversion disc is fixedly installed on the transmission rod, the conversion gear is rotatably connected to the transmission rod, the conversion gear is engaged with the large guide wheel, a fixed sheet is fixedly connected to one side of the conversion gear, a circular clamping groove is formed in the fixed sheet, a clamping vice is rotatably connected to the conversion disc in the circular clamping groove, and a curved groove matched with the clamping vice is formed in the inner side of the conversion disc.

[0013] Preferably, the power generation device comprises a generator and a small pulley, the generator comprises a motor shell, a stator and a rotor, the motor shell, the stator and the rotor are sequentially arranged from outside to inside, and the motor shell is fixedly installed on the top of the base.

[0014] Preferably, the stator comprises a steel groove, a thermoelectric element, a first friction power generation element, a first conductive copper sheet and a flat spring, the steel groove and the motor shell are fixedly installed, the flat spring is installed in the steel groove, the thermoelectric element is installed on the outer surface of the steel groove, and the first conductive copper sheet and the first friction power generation element are arranged on the inner surface of the steel groove.

[0015] Preferably, the rotor comprises a rotor shaft and a rotating ring, one end of the rotor shaft is rotatably connected to the motor shell, the outer surface of the rotor shaft is fixedly connected to the rotating ring, the outer surface of the rotating ring is provided with a second conductive copper sheet and a second friction power generation element, a wire collecting copper sheet is arranged on the rotor shaft, and a wire groove is formed in the rotating ring.

[0016] Preferably, the power transmission device further comprises a large pulley and a belt, the large pulley is fixedly connected to the transmission rod, and the large pulley is drivingly connected to the small pulley through the belt.

[0017] Preferably, a fixing bolt hole is formed in the bearing support.

[0018] The utility model discloses a power transmission device and power generation device, and the power transmission device and the power generation device are combined to form a tunnel lighting device.

[0019] In the utility model, when the vehicle passes, the pressure bar bears the downward pressure, and the pressure is converted into mechanical kinetic energy, the kinetic energy is speed-regulated through the gear system, is transmitted to the motor system through the transmission device and the direction converter, and is finally converted into electric energy and is supplied to the tunnel lighting or other electric power equipment, the device is compact in structure, can adapt to the low-temperature environment of the cold tunnel, and further improves the power generation efficiency through the thermoelectric technology, and has wide application prospect.

[0020] The utility model discloses a tunnel power generation device, including tunnel, power generation device, direction converter, generator, the tunnel is provided with the power generation device, the power generation device is provided with direction converter, and the direction converter is provided with generator. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, for the ordinary skilled person in the art comes, without creative labor's premise, can also obtain other drawing according to these drawings;

[0022] Figure 1 It is the device structure diagram of the utility model;

[0023] Figure 2 It is the structure schematic diagram of the kinetic energy conversion device in the utility model

[0024] Figure 3 It is the side view of the power generation device in the utility model;

[0025] Figure 4 It is the structure schematic diagram of direction converter in the utility model;

[0026] Figure 5 It is the structure schematic diagram of generator in the utility model;

[0027] Figure 6 It is the structure schematic diagram of generator stator in the utility model;

[0028] Figure 7 It is the internal structure schematic diagram of generator stator in the utility model;

[0029] Figure 8 It is the structure schematic diagram of generator rotor in the utility model;

[0030] Figure 9 It is the structure schematic diagram of generator in the utility model.

[0031] The reference signs in the drawing are as follows:

[0032] 1, kinetic energy conversion device; 2, power generation device; 3, base; 4, power transmission device; 6, pressure rod; 7, spring; 8, sliding shaft; 9, fixator; 10, belt; 11, large pulley; 12, bearing support; 13, bearing; 14, transmission rod support; 15, transmission rod; 16, small pulley; 17, variable speed gear; 18, direction converter; 19, generator; 20, conversion disc; 21, caliper; 22, fixed sheet; 23, conversion gear; 24, rotor; 241, rotating ring; 25, stator; 26, motor housing; 27, thermoelectric sheet; 28, first friction power generation sheet; 281, second friction power generation sheet; 29, first conductive copper sheet; 291, second conductive copper sheet; 30, flat spring; 31, clamping groove; 32, copper collection sheet; 33, rotor shaft; 34, wire groove; 35, small guide roller; 36, large guide roller; 37, circular clamping groove; 38, curved groove; 39, bolt hole; 40, steel groove; 41, external circuit interface. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] As Figure 1 and Figure 2 A power supply device for a highway tunnel, comprising a base 3, wherein the base 3 is provided with a kinetic energy conversion device 1, a power transmission device 4 and a power generation device 2.

[0035] The kinetic energy conversion device 1 comprises a sliding shaft 8, a spring 7, a fixator 9 and a pressure rod 6, wherein the fixator 9 is fixedly connected to the top of the base 3, both ends of the sliding shaft 8 are welded to the inside of the fixator 9, and the bottom end of the pressure rod 6 and the spring 7 are sleeved on the sliding shaft 8.

[0036] The device adopts cold-resistant and corrosion-resistant steel, the friction material and the conductive metal meet the cold-resistant requirements, the power generation system can provide power for the tunnel heating system, be used for heating and heat preservation facilities inside the tunnel, and support emergency lighting and monitoring, and the height of the pressure rod 6 and the sensitivity of the spring 7 can be adjusted according to the local road conditions.

[0037] The top of the pressure rod 6 is provided with a pressure receiving device, when a vehicle passes through the pressure receiving device, the pressure receiving device and the pressure rod 6 will be pressed down, the part of the pressure receiving device on the road surface can have the function of an oscillating marking line, which is used for prompting the driver and ensuring the safety of driving, and generates pressure power during the passing of the vehicle to collect energy.

[0038] The kinetic energy conversion device 1 is to fix the spring 7 and the pressure bar 6 through the sliding shaft 8 in sequence, and fix the sliding shaft 8 carrying the spring 7 and the pressure bar 6 in the inside of the fixator 9 through welding, so as to realize that the whole device can generate power when the vehicle passes and can quickly restore to the non-pressured state.

[0039] As Figure 1 and Figure 3 , the power transmission device 4 comprises a transmission rod support 14 fixed on the top of the base 3, a transmission shaft rotatably connected on the transmission rod support 14, a variable speed gear 17 fixedly connected on the transmission shaft, the variable speed gear 17 comprising a large guide wheel 36 and a small guide wheel 35, the centers of the large guide wheel 36 and the small guide wheel 35 are located on the transmission shaft.

[0040] One side of the pressure bar 6 is provided with a rack structure, the pressure bar 6 is engaged with the small guide wheel 35 through the rack structure, so as to drive the small guide wheel 35 to rotate when the pressure bar 6 is pressed up and down.

[0041] The spring 7 is located at the bottom of the pressure bar 6, and the two ends of the spring 7 are fixedly connected with the pressure bar 6 and the fixator 9 respectively; the large guide wheel 36 and the small guide wheel 35 are fixedly connected, and both are fixed on the transmission shaft.

[0042] As Figure 1 and Figure 3 , the power transmission device 4 further comprises a bearing support 12 installed on the top of the base 3, a transmission rod 15 rotatably connected on the bearing support 12 through a bearing 13, and a direction converter 18 provided on the transmission rod 15.

[0043] As Figure 1 , Figure 3 and Figure 4 , the direction converter 18 comprises a conversion gear 23 and a conversion disc 20, wherein the conversion disc 20 is fixedly installed on the transmission rod 15, the conversion gear 23 is rotatably connected on the transmission rod 15, the conversion gear 23 is engaged with the large guide wheel 36, one side of the conversion gear 23 is fixedly connected with a fixed sheet 22, a circular clamping groove 37 is opened on the fixed sheet 22, a clamping vice 21 is rotatably connected on the circular clamping groove 37 and located in the conversion disc 20, a curved groove 38 is opened on the inner side of the conversion disc 20 and used in cooperation with the clamping vice 21, a limiting protrusion (not shown in the figure) is provided on the side of the fixed sheet 22 close to the conversion disc 20, which can limit the rotation angle of the clamping vice 21, so that the clamping vice 21 cannot completely escape from the curved groove 38 when it is in the non-pressured state.

[0044] The up and down movement of the pressure bar 6 will eventually drive the large guide wheel 36 to rotate in different directions. At the same time, the large guide wheel 36 will drive the conversion gear 23 to rotate in different directions. The conversion gear 23 drives the fixed plate 22 and the caliper 21 to rotate. When the conversion gear 23 drives the caliper 21 to rotate clockwise, the caliper 21 is subjected to the pressure of the inner surface of the curved groove 38 to generate rotation. The caliper 21 is elastically reset when it moves into the next curved groove 38 (the part of the caliper 21 in contact with the movable groove 38 is made of elastic material, so that the caliper 21 can be elastically reset after being subjected to pressure and rotating). At this time, the conversion disc 20 and the transmission rod 15 will not rotate. When the conversion gear 23 drives the caliper 21 to rotate counterclockwise, the caliper 21 presses the inner wall of the curved groove 38 and drives the conversion disc 20 to rotate, so that the conversion disc 20 and the transmission rod 15 can only rotate in a single direction.

[0045] Through the constraint of the conversion disc 20 and the caliper 21, the rotation angle is limited and the rotation direction is adjusted. When the power is transmitted from the variable gear 17 to the conversion gear, the caliper 21 and the curved groove 38 on the fixed plate 22 ensure that the rotation direction of the conversion disc 20 is consistent. The direction converter 18 unifies the power generated by multiple pressure bars 6 into a single direction of rotation through this mechanism, and transmits it to the transmission rod 15, thereby driving the subsequent power generation device 2. Finally, the rotation direction of each conversion disc 20 on the transmission rod 15 is realized through the conversion disc 20 fixed on the transmission rod 15, while avoiding the difference in the speed of each conversion disc 20 on the transmission rod 15 due to the different pressures exerted on the pressure bars 6 by the vehicle passing through different positions, thereby ensuring the stability of power transmission.

[0046] As shown in Figure 1 , Figure 3 and Figure 5 , the power generation device 2 includes a generator 19 and a small pulley 16. The generator 19 includes a motor housing 26, a stator 25, and a rotor 24, which are arranged from outside to inside. The motor housing 26 is fixedly installed on the top of the base 3.

[0047] The motor housing 26 is used to support and protect the internal components of the generator 19, and provides a connection to the external circuit interface 41 and fixes the entire generator 19. The base 3 is the support of the entire power generation device 2, providing stability to the entire structure. It is mainly used to fix the holder 9, the transmission rod support 14, the bearing support 12, and the generator 19, so as to ensure that each component maintains the correct relative position during operation.

[0048] As shown in Figure 1 , Figure 3 , Figure 5 and Figure 6The stator 25 comprises a steel groove 40, a thermoelectric power generation sheet 27, a first friction power generation sheet 28, a first conductive copper sheet 29, and a flat spring 30; wherein the steel groove 40 and the motor housing 26 are fixedly installed, the flat spring 30 is installed inside the steel groove 40, the outer surface of the steel groove 40 is provided with the thermoelectric power generation sheet 27, and the inner surface of the steel groove 40 is provided with the first conductive copper sheet 29 and the first friction power generation sheet 28.

[0049] The steel groove 40 has a clamping groove 31 at both ends, and the first conductive copper sheet 29 and the first friction power generation sheet 28 are fixed at the clamping groove 31, so as to achieve the purpose of fully contacting the friction surface.

[0050] As shown in Figure 5 , Figure 7 and Figure 8 , the rotor 24 comprises a rotor shaft 33 and a rotating ring 241, one end of the rotor shaft 33 is rotatably connected with the motor housing 26, the outer surface of the rotor shaft 33 is fixedly connected with the rotating ring 241, the outer surface of the rotating ring 241 is provided with a second conductive copper sheet 291 and a second friction power generation sheet 281, the rotor shaft 33 is provided with a wire collecting copper sheet 32, and the rotating ring 241 is provided with a wire groove 34.

[0051] The rotor 24 is driven to rotate by the second friction power generation sheet 281, the second conductive copper sheet 291, the internal wires of the wire groove 34, and the wire collecting copper sheet 32.

[0052] As shown in Figure 1 , Figure 3 and Figure 8 , the power transmission device 4 further comprises a large belt pulley 11 and a belt 10, the large belt pulley 11 is fixedly connected with the transmission rod 15, the large belt pulley 11 is drivingly connected with a small belt pulley 16 through the belt 10, so that the large belt pulley 11 can drive the small belt pulley 16 to rotate through the belt 10 when the large belt pulley 11 rotates, and the small belt pulley 16 is fixedly connected with the rotor shaft 33, so that the small belt pulley 16 drives the rotor shaft 33 to rotate.

[0053] As shown in Figure 3 , the bearing support 12 is provided with a fixing bolt hole 39, so that the bearing support 12 can be fixed on the base 3 through the fixing bolt hole 39.

[0054] Working principle: when the vehicle passes, the pressure rod 6 is extruded by the weight of the vehicle, moves downward to drive the spring 7 to compress and store elastic potential energy, and the spring 7 pushes the pressure rod 6 to restore the initial position when the spring 7 is released, so as to realize the up-down movement of the pressure rod 6, the up-down movement of the pressure rod 6 drives the small guide wheel 35 to rotate, the small guide wheel 35 drives the large guide wheel 36 to rotate synchronously, and the large guide wheel 36 drives the conversion gear 23 to rotate, so that the torque of the conversion gear 23 is reduced but the rotation speed is increased.

[0055] The conversion gear 23 transmits the rotating motion to the transmission rod 15 through the conversion disc 20 connected thereto, the direction converter 18 limits the rotating angle of the conversion disc 20 through the caliper 21, ensures that all the conversion discs 20 rotate synchronously in the same direction, the transmission rod 15 collects the power of the plurality of conversion discs 20, and transmits the power to the small pulley 16 of the generator 19 through the large pulley 11 and the belt 10, the rotor 24 of the generator 19 is driven to rotate by the small pulley 16, the rotation of the rotor 24 causes the second friction power generation sheet 281 and the first friction power generation sheet 28 to generate friction power, the heat generated by the friction causes the temperature difference power generation sheet 27 to generate temperature difference and generate power, and the generated power is used for heating, lighting and other equipment in the tunnel.

[0056] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A power supply device for a highway tunnel, comprising a base (3), characterized in that, The base (3) is provided with a kinetic energy conversion device (1), a power transmission device (4) and a power generation device (2). The kinetic energy conversion device (1) includes a sliding shaft (8), a spring (7), a fixture (9), and a pressure rod (6). The fixture (9) is fixedly connected to the top of the base (3). Both ends of the sliding shaft (8) are welded and fixed inside the fixture (9). The bottom end of the pressure rod (6) and the spring (7) are both sleeved on the sliding shaft (8). The power transmission device (4) includes a transmission rod bracket (14), which is fixed to the top of the base (3). A transmission shaft is rotatably connected to the transmission rod bracket (14), and a speed-changing gear (17) is fixedly connected to the transmission shaft. The speed-changing gear (17) includes a large guide wheel (36) and a small guide wheel (35). A rack structure is provided on one side of the pressure rod (6), and the pressure rod (6) meshes with the small guide wheel (35) so that when the pressure rod (6) moves up and down under pressure, it drives the small guide wheel (35) to rotate. The power transmission device (4) also includes a bearing support (12), which is installed on the top of the base (3). A transmission rod (15) is rotatably connected to the bearing support (12) via a bearing (13), and a direction converter (18) is provided on the transmission rod (15). The power generation device (2) includes a generator (19) and a small pulley (16). The generator (19) includes a motor housing (26), a stator (25), and a rotor (24). The motor housing (26), stator (25), and rotor (24) are arranged sequentially from the outside to the inside. The motor housing (26) is fixedly installed on the top of the base (3). The power transmission device (4) also includes a large pulley (11) and a belt (10). The large pulley (11) is fixedly connected to the transmission rod (15), and the large pulley (11) is connected to the small pulley (16) through the belt (10).

2. The power supply device for a highway tunnel according to claim 1, characterized in that, The spring (7) is located at the bottom of the pressure rod (6), and the two ends of the spring (7) are fixedly connected to the pressure rod (6) and the fixture (9) respectively; the large guide wheel (36) and the small guide wheel (35) are fixedly connected, and both the large guide wheel (36) and the small guide wheel (35) are fixed on the transmission shaft.

3. A power supply device for a highway tunnel according to claim 2, characterized in that, The direction converter (18) includes a conversion gear (23) and a conversion disk (20). The conversion disk (20) is fixedly mounted on the transmission rod (15). The conversion gear (23) is rotatably connected to the transmission rod (15). The conversion gear (23) meshes with the large guide wheel (36). A fixing plate (22) is fixedly connected to one side of the conversion gear (23). A circular slot (37) is provided on the fixing plate (22). A caliper (21) is rotatably connected to the circular slot (37) and located inside the conversion disk (20). A curved groove (38) is provided on the inner side of the conversion disk (20) to cooperate with the caliper (21).

4. A power supply device for a highway tunnel according to claim 1, characterized in that, The stator (25) includes a steel channel (40), a thermoelectric generator (27), a first triboelectric generator (28), a first conductive copper sheet (29), and a flat spring (30); wherein the steel channel (40) and the motor housing (26) are fixedly installed, the flat spring (30) is installed inside the steel channel (40), the thermoelectric generator (27) is installed on the outer surface of the steel channel (40), and the first conductive copper sheet (29) and the first triboelectric generator (28) are provided on the inner surface of the steel channel (40).

5. A power supply device for a highway tunnel according to claim 4, characterized in that, The rotor (24) includes a rotor shaft (33) and a rotating ring (241). One end of the rotor shaft (33) is rotatably connected to the motor housing (26). The outer surface of the rotor shaft (33) is fixedly connected to the rotating ring (241). A second conductive copper sheet (291) and a second triboelectric generator sheet (281) are installed on the outer surface of the rotating ring (241). A wire-collecting copper sheet (32) is installed on the rotor shaft (33). A wire groove (34) is opened on the rotating ring (241).

6. A power supply device for a highway tunnel according to claim 1, characterized in that, The bearing support (12) is provided with fixing bolt holes (39).

Images