Solar energy bridge middle zone band two-way self-propelled trolley and using method thereof

Abstract

The application discloses a kind of solar bridge middle strip two-way self-propelled trolley and its using method, two bridge guardrails, set in bridge center, form bridge middle strip;Trolley frame is set on the bridge guardrail;Protective system is set above the trolley frame, and is used to lift staff to go up and down trolley frame safely;Walking system is set below the trolley frame, and is used to drive trolley frame to move along the length direction of bridge guardrail.Utilize solar energy+mobile power as the power source of trolley frame walking and construction machine tool, energy saving and environmental protection, without external power supply, driving distance is not limited by distribution box, external cable, using tramcar walking principle, construction personnel can control trolley frame to move in forward and backward direction in construction;Trolley walking track relies on bridge guardrail, is not influenced by bridge surface temporary machine tool, material and wet joint gap, in addition to driving wheel, driven wheel, additional safety wheel.

Description

TECHNICAL FIELD

[0001] The present application relates to a solar bridge middle strip bidirectional self-propelled trolley and its use method. BACKGROUND

[0002] In the construction or use of (super) large bridges, it is inevitable to carry out related construction work between the guardrails in the middle strip of the bridge. For example, the laying construction of the power cable line, communication pipeline and optical cable line of the central median strip electromechanical engineering field equipment, the facilities such as pipe box or pipe box bracket need to be installed in the central median strip, or during the use of the bridge, the bridge guardrails and the pipeline facilities on the side of the middle strip need to be regularly maintained. The operation interval of the central median strip is narrow, the operation is difficult, and the safety accident hidden danger is great.

[0003] The existing equipment guardrail formwork trolley currently adopted relies on the bridge deck to walk, a hanging basket is arranged on the trolley, and the construction personnel enter the inside of the middle strip of the bridge through the trolley hanging basket to carry out related construction work. This scheme is greatly affected by the space conditions of the bridge deck, and the workers need to repeatedly go up and down the operation platform to move the trolley, which greatly affects the construction efficiency, and there are certain use defects. The construction is carried out by using a curved arm type climbing operation vehicle, that is, a curved arm type climbing operation vehicle is used under the bridge, and the construction personnel reach the position of the middle strip of the bridge through the hanging basket of the operation vehicle to carry out related construction work. This method has high cost, and is greatly limited by the height of the operation arm of the curved arm type climbing operation vehicle and the terrain conditions under the bridge. It cannot be used under the conditions of high bridge height and poor terrain conditions under the bridge. At the same time, the vehicle position needs to be constantly shifted during construction, and continuous construction cannot be realized, which affects the construction efficiency. If a crane + hanging basket is used for assistance, the construction principle is similar to that of the curved arm type climbing operation vehicle. The crane is parked under the bridge, a customized hanging basket is installed in front of the large arm of the crane, and the construction personnel are sent to the specified position of the middle strip to carry out related construction. The defects of this method are similar to those of the curved arm type climbing operation vehicle. The cost is high, the construction efficiency is low, it cannot be used under the conditions of high bridge height and poor terrain conditions under the bridge, and there is a great safety risk, so it is limited in some areas.

[0004] Prior art: the patent "a highway bridge central median strip silicon core pipe pipe box installation operation platform" (patent number: CN217642425U) provides a highway bridge central median strip silicon core pipe pipe box installation operation platform with simple structure, low cost and simple operation. The operation platform can be set between the two guardrails by relying on the already constructed guardrails as the carrier, the support frame is erected on the top surface of the guardrail, the operation platform is made to walk between the guardrails by using the longitudinal rollers, the workers can continuously work without constantly going up and down the platform, and the operation platform is not limited by the terrain conditions under the bridge. It can effectively avoid safety hazards, save manpower, operate conveniently, and improve construction efficiency. The defects are: the hanging basket cannot automatically walk and brake, and needs to be controlled by the construction personnel, the automaticity is poor, and the workers are easy to produce the safety hidden danger of sliding on the slope on the bridge with large slope if they do not pay attention.

[0005] The patent "A Bridge Guardrail Maintenance Trolley" (Patent No.: CN115467229A) allows for construction work on existing bridge guardrails. Maintenance personnel, secured by safety ropes, cross the bridge structure, climb a ladder, and stand within the trolley's protective frame to perform repairs. Adjustments to the repair position are easily made by moving the trolley along the bridge structure. However, it has drawbacks: it lacks automatic movement and braking, requiring manual control, resulting in poor automation. On steep bridges, workers may slip if not careful. Furthermore, the structural design relies on a single side of the guardrail for support, increasing the risk of trolley overturning if not properly controlled during construction. Summary of the Invention

[0006] The purpose of this invention is to provide a bidirectional self-propelled trolley with a split-type structure for solar bridges and its usage method, so as to solve the problems mentioned in the background art, such as large site restrictions, low construction efficiency, poor automation, and poor safety.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a solar-powered bridge median bidirectional self-propelled trolley, comprising:

[0008] Two bridge railings are installed in the center of the bridge, forming a median strip.

[0009] The trolley frame is mounted on the bridge railing;

[0010] A protective system is installed above the trolley frame and is used to improve the safety of workers getting on and off the trolley frame;

[0011] A walking system is installed below the trolley frame and is used to drive the trolley frame to move along the length of the bridge railing;

[0012] The construction platform is suspended on the trolley frame and placed inside the median strip of the bridge;

[0013] A ladder, installed on the trolley frame and the protective system, provides a passage for construction personnel to enter and exit the construction platform;

[0014] The power system provides power to the walking system and drives the trolley frame to move.

[0015] Preferably, the walking system includes two drive wheels, two driven wheels, a drive shaft, a safety wheel, and a guide wheel. The drive shaft is disposed between the two drive wheels, the drive wheels are disposed on one of the bridge railings, and the driven wheels are disposed on the other bridge railing. The drive wheels and driven wheels are arranged in a front-to-back configuration on the same plane.

[0016] Wherein, with the increase of the travel resistance, the rear driving wheel can continuously provide power and follow the driving wheel to ensure the normal travel of the trolley frame.

[0017] Preferably, the safety wheel is arranged inside the two driving wheels and the two driven wheels and is welded to the trolley frame, and the safety wheel is used to provide support for the trolley frame when the driving wheel and the driven wheel fall off the bridge guardrail track, thereby reducing the travel resistance of the driving wheel.

[0018] Preferably, the guide wheel comprises a wheel frame and a guide tire, the wheel frame is connected to the trolley frame, and the wheel frame is provided with an adjusting bolt for adjusting the width of the wheel frame according to different widths of the bridge guardrail, and the guide wheel is arranged on the wheel frames on the inside and outside of the bridge guardrail on the side of the driving wheel and is clamped on both sides of the bridge guardrail at the same time.

[0019] Preferably, a protective rail is arranged around the construction platform, and the height of the protective rail is not less than 1.2 meters.

[0020] Preferably, the ladder comprises a first ladder and a second ladder, the first ladder is arranged on the outside of the trolley frame and is used for workers to enter the trolley frame, and the second ladder is arranged inside the trolley frame and is built on the protective rail of the construction platform to extend above the construction platform.

[0021] Preferably, the power system comprises a solar panel, a power switch and an electrical control box, the solar panel is arranged on the top of the trolley frame, the power switch is installed on the construction platform, and the electrical control box is installed in the trolley frame.

[0022] Preferably, the electrical control box is provided with a solar charging and voltage increasing controller, a storage battery, a motor and related circuits. Preferably, the protection system comprises a stainless steel skin arranged around the outside of the trolley frame.

[0023] A use method of the solar bridge middle strip two-way self-propelled trolley, comprising the following steps,

[0024] Step A, first use external instruments to hoist the trolley frame to the bridge middle strip of the two bridge guardrails, and let the driving wheel and the driven wheel arranged on both sides of the trolley frame fall on the upper surface of the bridge guardrail, when the trolley frame falls on the two bridge guardrails, the construction platform is between the two bridge guardrails, then the workers climb into the trolley frame through the first ladder arranged on the outside of the trolley frame, and climb onto the construction platform through the second ladder;

[0025] Step B, as the solar panel absorbs solar energy and converts it into electrical energy through the electrical control box, the workers press the power switch to drive the driving wheel to walk on the bridge guardrail through the related circuit;

[0026] Step B-1, as the driving wheel walks, the driven wheel follows the driving wheel and drives the trolley frame to walk together with the construction platform, when the front wheel of the driving wheel walks at the expansion joint and the guardrail joint position, the resistance increases, the rear wheel of the driving wheel continuously provides power to drive the trolley frame to walk;

[0027] Step C, when the trolley frame walks on the flat surface of the bridge guardrail, the driving wheel and the driven wheel are located on the track of the bridge guardrail, and the safety wheel is not stressed;

[0028] Step C-1, when the trolley frame passes through the expansion joint and the bridge joint position, the driving wheel and the driven wheel are separated from the track of the bridge guardrail, the safety wheel is in contact with the bridge guardrail at this time, and the driving wheel and the driven wheel are assisted to drive the trolley frame to continue to walk on the bridge guardrail;

[0029] Step D, when the trolley frame walks to the curve section of the bridge guardrail, the guide wheel arranged on the wheel frame abuts against one side of the concrete guardrail of the bridge guardrail and rolls on the concrete guardrail following the movement of the trolley frame;

[0030] Step D-1, when the width of the bridge guardrail is different, the adjusting bolt is twisted to adjust the width between the two wheel frames, so that the guide wheel is always clamped on both sides of the concrete guardrail to roll.

[0031] The technical effects and advantages of the present application: the solar bridge middle strip bidirectional self-propelled trolley and the using method thereof utilize solar energy + mobile power as the power source of the trolley frame walking and construction tools, are energy-saving and environment-friendly, do not need external power supply, the driving distance is not limited by distribution boxes and external cables, construction personnel can control the trolley frame to move and walk in the forward and backward directions in construction according to the walking principle of the electric car; the trolley walking track relies on the bridge guardrail and is not affected by temporary tools, materials and wet joint joints on the bridge deck, in addition to the driving wheel and the driven wheel, a safety wheel is additionally arranged, and the safety during the trolley driving process is further improved; the wheel frame and the guide wheel are arranged, so that the trolley frame can normally walk on the curve section of the bridge, and the risk of overturning of the trolley frame is avoided, and the width adjusting bolt is arranged on the wheel frame, so that the trolley can be used on the middle strip guardrail with different widths. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a whole structure schematic view of the present application;

[0033] Figure 2 It is a structure schematic view of the trolley frame of the present application;

[0034] Figure 3 It is a structure schematic view of the solar pad of the present application;

[0035] Figure 4The first perspective structural schematic view of the walking system of the present application;

[0036] Figure 5 The second perspective structural schematic view of the walking system of the present application;

[0037] Figure 6 The side view of the whole of the present application;

[0038] Figure 7 The structural schematic view of the present application Figure 5 enlarged at A.

[0039] In the figure: 1, bridge guardrail; 2, first ladder; 3, second ladder; 4, solar panel; 5, trolley frame; 6, protection system frame; 7, driven wheel; 8, driving wheel; 9, safety wheel; 10, power switch; 11, construction platform; 12, transmission shaft; 13, guide wheel; 14, wheel frame; 15, electrical control box; 16, adjusting bolt. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0041] In order to make the trolley frame 5 walking track rely on the guardrail, not affected by the temporary machine tools, materials and wet joint breaks on the bridge deck, with reference to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, including: two bridge guardrails 1, set in the bridge center, forming the bridge middle strip; trolley frame 5, set on the bridge guardrails 1, trolley frame 5 is mainly welded by angle steel or square steel tube and other steel materials, the size is customized according to the width of the bridge middle strip guardrail, and the stress is calculated to meet the use requirements; the protection system includes a stainless steel skin set around the outer side of the trolley frame 5, set above the trolley frame 5, and the protection system frame 6 is mainly welded by small angle steel or square tube, surrounded by stainless steel skin, the size is customized according to the size of the trolley frame 5, welded above the trolley frame 5, and the welding should be firm; the walking system is set below the trolley frame 5, used to drive the trolley frame 5 to move along the length direction of the bridge guardrail 1, the driving wheel 8 and the driven wheel 7 adopt 40cm diameter mountain inflatable wheels, the safety wheel 9 adopts 10cm diameter directional rubber wheel, installed inside the driving wheel 8 and the driven wheel 7, welded on the trolley frame 5, and 10cm away from the main tire, 2cm higher than the top of the guardrail. The wheel frame 14 is mainly made of 5# angle steel, 40mm*20mm*4mm square tube, two 63# channel steels are welded below the trolley frame 5, and the wheel frame 14 width adjusting bolt 16 adopts M16 high-strength hexagonal bolt. The guide wheel 13 adopts 8cm diameter directional rubber wheel, welded and fixed on the wheel frame 14; the construction platform 11 is hung on the trolley frame 5 and placed inside the bridge middle strip; the ladder is set on the trolley frame 5 and the protection system, providing a channel for the construction personnel to enter the construction platform 11; the power system provides power for the walking system to drive the trolley frame 5 to travel.

[0042] In order to improve the safety of the trolley frame 5 during travel, reference is made to Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the walking system comprises two driving wheels 8, two driven wheels 7, a transmission shaft 12, a safety wheel 9 and a guide wheel 13, the transmission shaft 12 is arranged between the two driving wheels 8, the driving wheels 8 are arranged on one of the bridge guardrails 1, the driven wheels 7 are arranged on the other bridge guardrail 1, and the driving wheels 8 and the driven wheels 7 are arranged in front and back in the same plane in pairs; wherein, as the travel resistance increases, the rear driving wheel 8 can continuously provide power, and the driven wheel 7 follows the driving wheel to move forward, ensuring the normal driving of the trolley frame 5, the driving wheel 8 is arranged on the middle strip with one side guardrail, which ensures that the trolley can continuously provide power when the front wheel drives at the expansion joint and the guardrail joint position and other positions during the driving process, and ensures the normal driving of the trolley. The driven wheel 7 is arranged on the middle strip with the other side guardrail, and follows the driving wheel 8 to move forward. The driving wheel 8 and the driven wheel 7 are made of mountain pneumatic tires, and the specifications are selected according to the actual situation of the top width of the guardrail, to ensure the comfort of the trolley driving and the friction between the trolley and the guardrail. The transmission shaft 12 is arranged between the two driving wheels 8, and the type and length of the transmission shaft 12 are selected according to the wheel distance. The safety wheel 9 is arranged inside the two driving wheels 8 and the two driven wheels 7, and is welded or bolted to the trolley frame 5, and is made of directional rubber wheel, which is 10 cm away from the main tire and 2 cm higher than the top of the guardrail (not stressed during normal driving of the trolley). Its main functions are: first, the middle strip width may change due to the construction error of the guardrail, and the safety wheel 9 can provide support for the trolley when the middle strip width changes greatly (too wide or too narrow) and the main wheel is easy to deviate from the guardrail track, which ensures safety. Second, when the trolley passes through the expansion joint and other bridge joint positions, the safety wheel 9 can assist the main wheel to provide support and reduce the driving resistance of the driving wheel 8, which ensures the smooth and safe driving of the trolley frame 5. The wheel frame 14 is made of angle steel, channel steel and other steel materials, which is customized according to the width of the guardrail and other sizes, and is welded to the trolley frame 5. The width adjusting bolt 16 is arranged on the wheel frame 14, which can adjust the width of the guide wheel 13 according to the width of the guardrail. The tire of the guide wheel 13 is made of six directional rubber wheels, which are arranged on the wheel frame 14 inside and outside the guardrail on the side of the driving wheel 8 (three on each side), which can provide guidance for the trolley driving according to the curve of the guardrail in the curve section of the bridge, and at the same time, it is clamped on both sides of the concrete guardrail to avoid the risk of overturning of the trolley frame 5. The safety wheel 9 is arranged inside the two driving wheels 8 and the two driven wheels 7, and is welded to the trolley frame 5. The safety wheel 9 is used to provide support for the trolley frame 5 when the driving wheel 8 and the driven wheel 7 deviate from the guardrail track, and to reduce the driving resistance of the driving wheel 8. The guide wheel 13 comprises a wheel frame 14 and a guide wheel 13 tire, the wheel frame 14 is connected with the trolley frame 5, and the width adjusting bolt 16 for adjusting the width of the wheel frame 14 according to the width of the bridge guardrail 1 is arranged on the wheel frame 14, the guide wheel 13 is arranged on the wheel frame 14 inside and outside the bridge guardrail 1 on the side of the driving wheel 8, and is clamped on both sides of the bridge guardrail 1 at the same time.Guardrails are provided around the construction platform 11, and the height of the guardrails is not less than 1.2 meters. The crawling ladder includes a first crawling ladder 2 and a second crawling ladder 3. The first crawling ladder 2 is arranged outside the trolley frame 5 and is used for workers to enter the trolley frame 5. The second crawling ladder 3 is arranged inside the trolley frame 5 and is built on the guardrails of the construction platform 11 to extend above the construction platform 11. The steel materials such as angle steels, square steel tubes and channel steels of the construction platform 11 are welded according to the width of the middle division strip and are hung on the trolley frame 5 and are arranged inside the middle division strip of the bridge. The bottom of the construction platform 11 is paved with a wooden board or a steel plate. The whole construction platform 11 is hung on the trolley frame (for easy installation and disassembly). The first crawling ladder 2 and the second crawling ladder 3 are both made of steel materials such as angle steels and square steel tubes and are welded and fixed on the trolley frame 5 and the protection system to provide a passage for the workers to enter the operation platform.

[0043] Further, the power system includes a solar panel 4, a power switch 10 and an electrical control box 15. The solar panel 4 is arranged on the top of the trolley frame 5. The power switch 10 is installed on the construction platform 11. The electrical control box 15 is installed inside the trolley frame 5. The power system includes the solar panel 4, a solar charging and voltage increasing controller, a storage battery, a motor, the power switch 10 and related circuits to provide power for the trolley. The model of the solar panel 4 is a 48V solar charging panel which is welded and fixed on the top of the trolley frame 5. The storage battery is a group of (4 pieces) 48V lead-acid storage batteries. The motor is a 48V-500W direct-current brushless motor (forward and reverse speed). The power switch 10 is a handle switch (including entry and exit functions) which is fixed on the guardrails of the construction platform 11. The electrical control box 15 is provided with the solar charging and voltage increasing controller, the storage battery, the motor and related circuits.

[0044] A use method of the solar bridge middle division strip bidirectional self-propelled trolley includes the following steps,

[0045] A use method of the solar bridge middle division strip bidirectional self-propelled trolley includes the following steps,

[0046] Step A, first, use external instruments to hoist the trolley frame 5 to the bridge middle division strip of the two bridge guardrails 1 and make the drive wheels 8 and the driven wheels 7 arranged on both sides of the trolley frame 5 fall on the upper surfaces of the two bridge guardrails 1. When the trolley frame 5 falls on the two bridge guardrails 1, the construction platform 11 is between the two bridge guardrails 1. Then, workers climb into the trolley frame 5 through the first crawling ladder 2 arranged outside the trolley frame 5 and climb onto the construction platform 11 through the second crawling ladder 3;

[0047] Step B, with the solar panel 4 absorbs solar energy, and through the electrical control box 15 into electrical energy, the staff press the power switch 10, through the relevant circuit power drive drive wheel 8 on the bridge guardrail 1 walking;

[0048] Step B-1, with the drive wheel 8 walking, the driven wheel 7 follows the drive wheel 8 forward, and drives the trolley frame 5 and the construction platform 11 to walk together, when the drive wheel 8 front wheel runs in the expansion joint and the guardrail joint position, the resistance increases, the drive wheel 8 rear wheel continues to provide power to drive the trolley frame 5 to run;

[0049] Step C, when the trolley frame 5 walks on the flat surface of the bridge guardrail 1, the drive wheel 8 and the driven wheel 7 are located on the track of the bridge guardrail 1, and the safety wheel 9 is not stressed;

[0050] Step C-1, when the trolley frame 5 passes through the expansion joint and the bridge joint position, the drive wheel 8 and the driven wheel 7 are separated from the track of the bridge guardrail 1, the safety wheel 9 is in contact with the bridge guardrail 1 at this time, the drive wheel 8 and the driven wheel 7 are assisted to let the trolley frame 5 continue to run on the bridge guardrail 1;

[0051] Step D, when the trolley frame 5 runs to the curve section of the bridge guardrail 1, the guide wheel 13 arranged on the wheel frame 14 will abut the one side of the concrete guardrail of the bridge guardrail 1 and roll on the concrete guardrail following the movement of the trolley frame 5;

[0052] Step D-1, when the width of the bridge guardrail 1 is different, the adjusting bolt 16 is screwed, the width between the two wheel frames 14 can be adjusted to change, so that the guide wheel 13 is always clamped on both sides of the concrete guardrail to roll.

[0053] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A bidirectional self-propelled trolley with a median strip in a solar-powered bridge, characterized in that: include: Two bridge railings (1) are set at the center of the bridge to form the median strip of the bridge; The trolley frame (5) is mounted on the bridge railing (1); The protective system is installed above the trolley frame (5) and is used to improve the safety of workers getting on and off the trolley frame (5); The walking system is located below the trolley frame (5) and is used to drive the trolley frame (5) to move along the length of the bridge railing (1); The construction platform (11) is suspended on the trolley frame (5) and placed inside the median strip of the bridge; A ladder is installed on the trolley frame (5) and the protective system to provide construction personnel with a passage to enter and exit the construction platform (11); The power system provides power to the walking system and drives the trolley frame (5) to travel. The walking system includes two drive wheels (8), two driven wheels (7), a drive shaft (12), a safety wheel (9), and a guide wheel (13). The drive shaft (12) is located between the two drive wheels (8). The drive wheels (8) are located on one of the bridge railings (1), and the driven wheels (7) are located on the other bridge railing (1). The drive wheels (8) and driven wheels (7) are arranged in a front-to-back plane in pairs. As the travel resistance increases, the rear drive wheel (8) continuously provides power and follows the drive wheel (8) forward through the driven wheel (7), ensuring the normal operation of the trolley frame (5). The safety wheel (9) is located inside the two drive wheels (8) and the two driven wheels (7) and is welded to the trolley frame (5). The safety wheel (9) provides support to the trolley frame (5) and reduces the travel resistance of the front wheel of the drive wheel (8) when the drive wheel (8) and the driven wheel (7) fall off the bridge railing (1) track. The guide wheel (13) includes a wheel frame (14) and a guide tire (13). The wheel frame (14) is connected to the trolley. The frame (5) is connected, and the wheel frame (14) is provided with adjusting bolts (16) that can adjust the width of the wheel frame (14) according to different bridge railing (1) widths. The guide wheel (13) is set on the wheel frame (14) on both the inner and outer sides of the bridge railing (1) on the side of the drive wheel (8), and is simultaneously locked on both sides of the bridge railing (1). The power system includes a solar panel (4), a power switch (10) and an electrical control box (15). The solar panel (4) is set on the top of the trolley frame (5), the power switch (10) is installed on the construction platform (11), and the electrical control box (15) is installed inside the trolley frame (5).

2. The solar-powered bridge split-type bidirectional self-propelled trolley according to claim 1, characterized in that: A protective railing is installed around the construction platform (11), and the height of the protective railing is not less than 1.2 meters.

3. The solar-powered bridge split-type bidirectional self-propelled trolley according to claim 1, characterized in that: The ladder includes a first ladder (2) and a second ladder (3). The first ladder (2) is located on the outside of the trolley frame (5) and is used for workers to enter the trolley frame (5). The second ladder (3) is located inside the trolley frame (5) and is built on the guardrail of the construction platform (11) and extends to the top of the construction platform (11).

4. The bidirectional self-propelled trolley with split-type distribution in a solar-powered bridge according to claim 1, characterized in that: The electrical control box (15) is equipped with a solar charging boost controller, a storage battery, a motor, and related circuits.

5. A bidirectional self-propelled trolley with a split-type distribution belt for a solar-powered bridge according to claim 1, characterized in that: The protective system includes a stainless steel sheet surrounding the outer side of the trolley frame (5).

6. A method for using a bidirectional self-propelled trolley with a split belt in a solar-powered bridge, as described in claim 1, is characterized in that: Includes the following steps, Step (A): First, use external equipment to hoist the trolley frame (5) onto the median strip of the two bridge railings (1), and let the drive wheels (8) and driven wheels (7) on both sides of the trolley frame (5) fall onto the upper surface of the bridge railing (1). After the trolley frame (5) falls onto the two bridge railings (1), the construction platform (11) is located between the two bridge railings (1). Then, the workers climb into the trolley frame (5) through the first ladder (2) set on the outside of the trolley frame (5), and climb onto the construction platform (11) through the second ladder (3). Step (B): As the solar panel (4) absorbs solar energy and converts it into electrical energy through the electrical control box (15), the staff presses the power switch (10) and drives the drive wheel (8) to walk on the bridge railing (1) through the relevant circuit. Step (B-1): As the drive wheel (8) moves, the driven wheel (7) follows the drive wheel (8) and drives the trolley frame (5) and the construction platform (11) to move together. When the front wheel of the drive wheel (8) travels at the expansion joint and guardrail break, the travel resistance increases, and the rear wheel of the drive wheel (8) continues to provide power to drive the trolley frame (5) to travel. Step (C): When the trolley frame (5) travels normally on the flat surface of the bridge railing (1), the drive wheel (8) and the driven wheel (7) are located on the track of the bridge railing (1), and the safety wheel (9) is not under force. Step (C-1): When the trolley frame (5) passes through the expansion joint and the bridge deck joint, the drive wheel (8) and the driven wheel (7) disengage from the bridge railing (1) track, and the safety wheel (9) contacts the bridge railing (1) at this time, assisting the drive wheel (8) and the driven wheel (7) so that the trolley frame (5) can continue to travel on the bridge railing (1); Step (D): When the trolley frame (5) travels to the curved section of the bridge railing (1), the guide wheel (13) set on the wheel frame (14) will come into contact with the concrete railing side of the bridge railing (1) and roll on the concrete railing as the trolley frame (5) moves. Step (D-1): When the width of the bridge railing (1) is different, turn the adjusting bolt (16) to adjust and change the width between the two wheel frames (14) so ​​that the guide wheel (13) is always stuck on both sides of the concrete railing and rolls.

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