Tank cover opening and closing device for hot transport vehicle

Abstract

The invention relates to a hot transport vehicle tank cover opening and closing device which comprises a mechanical system, a hydraulic system and an electrical remote control system, and the electrical remote control system controls a hydraulic oil cylinder to move through circuit on-off to be in linkage with the mechanical system to work. According to the scheme, a driver is required to stand on the ground to open and close the tank cover after landing, so that the personal safety of the driver is protected, the real-time position of the tank cover can be observed in all directions in the process of operating the tank cover to open and close, and the safety of personnel and equipment in the operation process is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of opening and closing device, specifically, a kind of hot truck tank cover opening and closing device, belong to steel plant hot truck structural component technical field. BACKGROUND

[0002] The steel slag poured out by No.4 and No.5 furnaces of the second steelmaking plant of Meisteel Company is contained in slag tank with loading quality of about 50 tons, the total mass of steel slag and slag tank is about 90 tons, and then it is hoisted by 100T crane to the special hot truck of Nanjing Property and then is transported to the first steelmaking plant for solidification, cooling, crushing and other treatments. The transportation distance from the second steelmaking plant to the first steelmaking plant is about 1.5 kilometers. Since the slag tank is open type without cover, the red slag in the slag tank melts at about 1200℃ during transportation, smokes along the way, and when it is raining or snowing, the rain and snow fall into the slag tank, the hot slag splashes, which is easy to scald the pedestrians on the road, scald the vehicles driving on the road, and pollute the environment, which has certain safety hazards. Therefore, it is necessary to make tank cover to prevent red slag splashing, which is the requirement of safety and environmental protection. Since the transport vehicle is a standard product without tank cover, it is necessary to make tank cover that can be opened and closed by using steel structure support, high-temperature resistant material and control system at appropriate position of the transport vehicle. SUMMARY

[0003] The present application is just for the technical problems existing in the prior art, and provides a kind of hot truck tank cover opening and closing device. The scheme requires the driver to stand on the ground to operate the tank cover opening and closing after landing, which not only protects the personal safety of the driver, but also can observe the real-time position of the tank cover in all directions during the operation of opening and closing the tank cover, to ensure the safety of personnel and equipment during operation.

[0004] In order to achieve the above purpose, the technical scheme of the present application is as follows: a kind of hot truck tank cover opening and closing device, the opening and closing device includes mechanical system, hydraulic system and electrical remote control system, wherein the electrical remote control system controls the movement of hydraulic cylinder through circuit on-off to link the mechanical system to work.

[0005] The mechanical system includes front base and reinforcing rib 35, front hydraulic cylinder 34 arranged on the front base, rear base and reinforcing rib 21, rear hydraulic cylinder 24 arranged on the rear base, front tank cover 30, rear tank cover 27, front cover support 31, front cover reinforcing rib 29, rear cover reinforcing rib 26, rear cover support 25, automobile floor 36 and automobile tire 37. The automobile floor is arranged on the automobile tire, the front and rear bases are fixed on the automobile floor, the front tank cover is arranged on the front base, and the rear tank cover is arranged on the rear base.

[0006] Wherein, the hydraulic system includes gear pump 3, hydraulic oil tank 1, hydraulic filter 2, safety valve 5, overflow valve 8, tank cover / solenoid valve 6, rear cover solenoid reversing valve 11, front cover solenoid reversing valve 13, front cover oil cylinder 17, rear cover oil cylinder 18; Gear pump 3 is installed in the power take-off of gearbox, hydraulic oil tank 1 is installed on the cab platform, hydraulic filter 2 is installed at the back of the engine compartment, safety valve 5 is installed at the back of the engine compartment, overflow valve 8 is installed at the back of the engine compartment, tank cover / solenoid valve 6 is installed in the power distribution cabinet beside the engine compartment, rear cover solenoid reversing valve 11 is installed in the power distribution cabinet beside the engine compartment, front cover solenoid reversing valve 13 is installed in the power distribution cabinet beside the engine compartment, front cover oil cylinder 17 is installed on the front support, rear cover oil cylinder 18 is installed on the front support.

[0007] Wherein, the electrical remote control system includes button switch, relay, wiring harness, relay, indicator light installed in the power distribution cabinet beside the engine compartment, position sensor installed on the rear base and reinforcing rib 21, position sensor installed on the front base and reinforcing rib 35, that is, travel switch, the vehicle itself is installed in the front of the vehicle 24 volt battery

[0008] Compared with the prior art, the present application has the following advantages,

[0009] 1. Energy saving and environmental protection, after installing the tank cover, it can prevent excessive heat loss during transportation, especially in winter operation, the outside temperature is too low, sometimes at-6 degrees Celsius, if the heat loss is too large, the liquid steel slag will become solid after reaching from A to B, it cannot be directly poured out, it can be reheated to melt and then poured out, wasting energy. After using the tank cover, the heat loss is small, even if the environmental temperature is low, the steel slag in the slag tank can also be kept in liquid state without caking. Small pieces of steel slag will not splash and fall to the ground during transportation, and fine slag dust will not fly in the air. Eliminate the direct upward radiation of hot air and damage the trees on both sides of the road.

[0010] 2. Improve safety performance,

[0011] First of all, the transportation safety, when the heavy vehicle is transported, the tank cover protects the steel slag from boiling and splashing after rainwater falls, which can hurt pedestrians, vehicles and green belts on the road. Secondly, the lifting safety eliminates the safety hazards of vehicle movement when opening the cover, closing the tank, lifting the slag tank and placing the slag tank. The safety self-locking device is installed, and the solenoid valve (i.e. the gearbox neutral relay in the circuit diagram) is installed. When the tank cover is working, the solenoid valve is powered on, the air circuit is opened into the brake master cylinder, the wheels are automatically locked, which prevents the vehicle from moving, and also prevents the vehicle from moving or colliding with the vehicle body when lifting the 90T slag tank, which can prevent accidents caused by impact.

[0012] There is also an operation safety protection, the installation of the selection switch, tank cover work / vehicle walking switch, self-ability to choose one, the company before lifting heavy objects have drivers sitting in the cab, heavy objects suddenly fall on the car, the vehicle bounce caused the driver's spinal fracture, the occurrence of personal injury accident. Therefore, the driver in the vehicle operation, the control box is not installed in the cab, but installed in the lower side of the vehicle front, the driver must fall to the ground to stand on the ground to operate the tank cover open, close, so as to protect the safety of the driver, but also can be in the process of operating the tank cover open, close all-round observation of the real-time position of the tank cover, to ensure the safety of personnel and equipment during operation.

[0013] With this safety device, the driver cannot complete the operation in the cab during the slag tank lifting and loading operation, and must leave the cab to the ground to complete it, which essentially protects the driver from injury.

[0014] The installation of the remote control operation system prevents the operation on site, especially in winter and cold season, when the external temperature is low, the slag tank may be injured by the surrounding personnel, and the use of remote control is safer. The operator can use the remote control to open and close the cover within a range of 5-20 meters around the vehicle, and can observe the movement of the tank cover while operating, to ensure the safety of the equipment and personnel before completing the operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The whole structure of the hot vehicle tank cover opening and closing device is shown in the figure,

[0016] Figure 2 The hydraulic system working principle diagram and the travel switch control principle diagram,

[0017] Figure 3 The tank cover manual / remote control operation system circuit principle diagram,

[0018] In the figure: 1, hydraulic mailbox, 2, hydraulic filter, 3, gear pump, P1-P8 high pressure oil pipe, 5, safety valve, 6, tank cover / solenoid valve, 8, overflow valve, 11, rear cover electromagnetic reversing valve, 13, front cover electromagnetic reversing valve, 17, front cover oil cylinder, 18, rear cover oil cylinder, 21 rear base and reinforcing rib, 22 rear cover closing to position travel switch SQ4, 23 rear cover opening to position travel switch SQ3, 24 rear cover oil cylinder, 25 rear cover bracket, 26 rear cover reinforcing rib, 27 rear tank cover, 28 slag tank, 29 front cover reinforcing rib, 30 front tank cover, 31 front cover bracket, 32 front cover opening to position travel switch SQ1, 33 front cover closing to position travel switch SQ2, 34 front cover oil cylinder, 35 front base and reinforcing rib, 37 automobile tire. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present application, the following detailed description of the present embodiment is made in conjunction with the accompanying drawings.

[0020] Embodiment 1: see Figure 1 、 Figure 2 A hot truck tank cover opening and closing device, the opening and closing device includes a mechanical system, a hydraulic system, an electrical remote control system, wherein the electrical remote control system controls the hydraulic cylinder movement linkage mechanical system work through the circuit on-off, the mechanical system includes a front base and a reinforcing rib 35, a front hydraulic cylinder 34 provided on the front base, a rear base and a reinforcing rib 21, a rear hydraulic cylinder 24 provided on the rear base, a front tank cover 30, a rear tank cover 27, a front cover support 31, a front cover reinforcing rib 29, a rear cover reinforcing rib 26, a rear cover support 25, an automobile floor 36 and an automobile tire 37, the automobile floor is provided on the automobile tire, the front and rear bases are fixed on the automobile floor, the front tank cover is provided on the front base, and the rear tank cover is provided on the rear base.

[0021] The hydraulic system includes a gear pump 3, a hydraulic oil tank 1, a hydraulic filter element 2, a safety valve 5, an overflow valve 8, high-pressure oil pipes P1-P8, a tank cover / magnetic valve 6, a rear cover electromagnetic reversing valve 11, a front cover electromagnetic reversing valve 13, a front cover oil cylinder 17, and a rear cover oil cylinder 18; the gear pump 3 is installed beside the power take-off of the transmission, the hydraulic oil tank 1 is installed on the platform of the cab, the hydraulic filter element 2 is installed at the rear of the engine compartment, the safety valve 5 is installed at the rear of the engine compartment, the overflow valve 8 is installed at the rear of the engine compartment, the tank cover / magnetic valve 6 is installed in the power distribution cabinet beside the engine compartment, the rear cover electromagnetic reversing valve 11 is installed in the power distribution cabinet beside the engine compartment, the front cover electromagnetic reversing valve 13 is installed in the power distribution cabinet beside the engine compartment, the front cover oil cylinder 17 is installed on the front support, and the rear cover oil cylinder 18 is installed on the rear support.

[0022] Among them, the gear pump 3, the hydraulic oil tank 1, the hydraulic filter element 2, the safety valve 5 and the overflow valve 8 are provided by the vehicle, which is used to provide power for vehicle steering, because the vehicle is stopped when the tank cover is opened or opened, and steering operation is not needed, the tank cover is opened or closed by using the hydraulic oil pressure, the tank cover cannot be operated when the vehicle is walking and steering, and steering and tank cover opening and closing do not affect each other. Open cover process:

[0023] Hydraulic system open cover working principle: in the gear pump 3, hydraulic oil from the hydraulic oil tank 1 out through the hydraulic filter 2 flow through the gear pump 3, through the tank cover / close solenoid valve DT0 (after the valve core is opened, the oil way is smooth, otherwise the power is off under the action of return spring to close the oil way channel) power, hydraulic oil left cavity out, into two ways (the left lower picture of the hydraulic oil way marked by red). One way through the rear cover solenoid valve 11 (left solenoid valve DT1 power, the valve core is opened, power off under the action of return spring to the middle position to close the channel) left cavity high pressure oil through high pressure oil pipe into 2 rear cover cylinder 18 upper cavity, cylinder piston rod under the action of pressure oil moves downward, drive bracket to the rear of the car, the cover is opened under the action of bracket, complete the cover open. At the same time, the lower cavity of the hydraulic cylinder oil through the high pressure oil pipe through the tank cover / close solenoid valve left cavity channel back to the overflow valve 8 back to the hydraulic tank.

[0024] When the cover is opened to the place, the travel switch SQ3 installed below the bracket is opened, DT1 electromagnetic valve is powered off, electromagnetic valve 11 is returned to the middle position under the action of return spring, the oil way is cut off, the cover stops moving without pressure oil, and the cover is completely opened.

[0025] The other way through the high pressure oil pipe flows to the front cover solenoid valve 13 (left solenoid valve DT3 power, the valve core is opened, power off under the action of return spring to the middle position to close the channel) left cavity high pressure oil into 2 rear cover cylinder 17 lower cavity, cylinder piston rod under the action of pressure oil moves upward, drive bracket to rotate, front cover in the direction of the car head under the action of bracket, front cover is opened, the lower cavity of the hydraulic cylinder oil through the high pressure oil pipe through the tank cover / close solenoid valve left cavity channel through the high pressure oil pipe back to the overflow valve 8 back to the hydraulic tank.

[0026] When the cover is opened to the place, the travel switch SQ1 installed below the bracket is opened, DT3 electromagnetic valve is powered off, 13 electromagnetic valve is returned to the middle position under the action of return spring, the oil way is cut off, the front cover stops moving without pressure oil, and the front cover is completely opened.

[0027] Cover closing process:

[0028] Figure 2 Hydraulic system working principle diagram and travel switch control principle diagram, the same reason, in the cover closing operation, DT2 electromagnetic valve, DT4 electromagnetic valve power, the hydraulic oil in the front and rear four cylinders changes the flow direction, pushes the reverse movement, drives the bracket to rotate from the rear, from the front to the middle, completes the cover closing action.

[0029] When the rear cover is in position, the bottom bracket of the hydraulic cylinder contacts the limit switch SQ4, opening SQ4, disconnecting the circuit, de-energizing DT2, and under the action of the return spring, solenoid valve 11 returns to the neutral position, cutting off the oil circuit, stopping the rear cover's operation, and fully closing the rear cover. When the front cover is in position, the bottom bracket of the hydraulic cylinder contacts the limit switch SQ2, opening SQ2, disconnecting the circuit, de-energizing DT4, and under the action of the return spring, the front cover solenoid valve 13 returns to the neutral position, cutting off the oil circuit, stopping the rear cover's operation, and fully closing the rear cover.

[0030] The installation positions of limit switches SQ1, SQ2, SQ3, and SQ4 can be installed and adjusted according to the actual positions of the front and rear can lids after they are opened and closed, ensuring that the error in the opening and closing positions of the can lids can be controlled within about 1mm.

[0031] like Figure 3 As shown, Figure 3 The circuit diagram of the manual / remote control system for the can lid includes a push-button switch, relays, wiring harnesses, position sensors, batteries, indicator lights, etc.

[0032] The schematic diagram of the manual operation circuit is as follows:

[0033] Once the vehicle arrives at the work station (slag hopper lifting point or slag hopper unloading point), the driver gets out of the vehicle and goes to the control box on the side of the vehicle. He then rotates the hopper cover operation / vehicle travel switch to the hopper cover opening / closing position, which connects the hopper cover circuit. At the same time, the handbrake solenoid valve DT5 is energized, and the valve core moves. Compressed air from the air tank passes through the vehicle's brake cylinder in this valve area. After the brake cylinder is inflated, the wheels lock up, preventing the vehicle from moving and causing a safety accident when the vehicle moves during lifting operations or when the slag hopper rubs against the vehicle.

[0034] The opening and closing procedure is as follows: Press the lid opening / closing button SB0, the solenoid valve DT0 is energized, the hydraulic oil is connected, and at the same time DT1 and DT3 are energized, the oil circuit of the front and rear lid solenoid valves is opened, and high-pressure oil (marked in red in the figure) enters the four working cylinders of the rear and front lids. The oil returns to the other end of the cylinder (marked in blue in the figure) and returns to the oil tank through the overflow valve 8. When the cylinder extends, it drives the bracket to move, and the bracket drives the lid to start rotating. When the lid rotates to the set angle, the limit switches SQ1 and SQ3 installed at the bottom of the cylinder will be pushed open to form a circuit break. DT1 and DT3 are de-energized, and the valve core returns to the neutral position under the action of the return spring. The oil supply to the four hydraulic cylinders is cut off, and the movement stops. The lid stops flipping and stops at the set position (the position of the limit switch is adjusted to control the lid flipping angle). When the limit switch is disconnected, relays YA2 and YA3 lose power, and the front cover open position indicator D1 and the rear cover open position indicator D2 illuminate. The driver can see these two lights in the control box, indicating that the front and rear tank covers are open.

[0035] If you want to stop the tank cover opening during the tank cover opening process, you only need to loosen the cover button.

[0036] The cover closing operation process is as follows: press the tank cover closing electromagnetic valve button SB2, the electromagnetic valves DT2, DT4 are powered on, the front cover and rear cover electromagnetic valve oil circuit is opened, the electromagnetic valve is opened, the 4 working oil cylinders of the rear cover and the front cover have high pressure oil entering the oil cylinder, the other end of the oil cylinder returns oil, and the oil returns to the tank through the overflow valve 8. When the oil cylinder retracts, it drives the bracket to move, and the bracket drives the tank cover to start to rotate. When the tank cover rotates to the set angle, the travel switches SQ2, SQ4 installed at the bottom of the oil cylinder are tripped to form a circuit break, DT2, DT4 lose power, the valve core returns to the middle position under the action of the return spring, the oil inlet of the 4 hydraulic oil cylinders is cut off, and the oil cylinder stops moving. The tank cover stops the action of turning over, and the tank cover stops at the set position (adjust the position of the travel switch to control the tank cover turning angle). When the travel switch is disconnected, the relays YA3, YA4 lose power, and the front cover closing to position indicator light D3 and the rear cover closing to position indicator light D4 are lit. The driver can see that the two lights in the control box are lit, and knows that the front and rear tank covers are opened to position.

[0037] If you want to stop the tank cover closing during the tank cover closing process, you only need to loosen the cover button.

[0038] The remote control operation circuit principle diagram is as follows:

[0039] The state selection switch is pressed in the tank cover working condition, the cover opening button of the remote controller is pressed, the remote control receiver receives the signal and sends out the instruction, M, K point outputs 24V direct current, electromagnetic valve DT0, DT1, DT3 is powered on, hydraulic oil circuit is connected, 4 oil cylinders pressure end oil inlet, the other end returns oil, and returns to the tank through 8 overflow valve. The oil cylinder extends to drive the bracket to move, and the bracket drives the tank cover to rotate to realize the opening. When the opening reaches the position, the travel switch is touched and the action is stopped, and the front and rear tank cover to position indicator light is lit. If the stop button of the remote controller is pressed, M, K point has no voltage output, electromagnetic valve DT0, DT1, DT3 has no electricity and does not work, under the action of the return spring, the tank cover stops opening.

[0040] Press the cover closing button of the remote controller, the remote control receiver receives the signal and sends out the instruction, N, K point outputs 24V direct current, electromagnetic valve DT0, DT2, DT4 is powered on, hydraulic oil circuit is connected, 4 oil cylinders oil inlet and return end change direction, oil cylinder reverse motion, through 8 overflow valve back to the tank. When the closing reaches the position, the travel switch is touched and the action is stopped, and the front and rear tank cover to position indicator light is lit. If the stop button of the remote controller is pressed, N, K point has no voltage output, electromagnetic valve DT0, DT2, DT4 has no electricity and does not work, under the action of the return spring, the tank cover stops closing.

[0041] The device principle is to use hydraulic system to drive mechanical mechanism, using hydraulic cylinder to drive lever mechanism linkage, realize the tank cover installation shaft of turning, drive the opening and closing action of tank cover, through double-acting cylinder (2 each before and after) and lever mechanism to realize the opening, closing of tank cover, without personnel on the top of tank car and close to high temperature, toxic object. This greatly reduces the labor intensity of workers, improves the working environment of labor personnel, reduces the risk of operation.

[0042] Hydraulic part, such as Figure 2 As shown, the vehicle arrives at the tank loading position, the cover needs to be opened and the slag tank is lifted in, the hydraulic oil from the gear pump is taken out, the electromagnetic valve control is used, the installation tank cover work / closing electromagnetic valve control two-way valve is connected or disconnected, the tank cover work system is connected or closed. Through the opening or closing electromagnetic valve, the front cover oil cylinder and the rear cover oil cylinder are connected or disconnected, the oil cylinder plunger is moved, the turning mechanism is rotated, the opening and closing of the tank cover are realized

[0043] In addition, the hydraulic drive control can be manual, press the opening electromagnetic valve, the front and rear cover control electromagnetic valve is electrified, the hydraulic oil enters the rear cover hydraulic oil cylinder small cavity and the front cover hydraulic oil cylinder large cavity, the oil cylinder is pushed to move, the linkage mechanism is rotated around the shaft to realize the opening of the front and rear cover. The control valve controls the oil direction and the loop to realize the opening and closing of the slag tank. Remote control can also be used to control the opening and closing of the electromagnetic valve to control the direction of the hydraulic oil to realize the opening and closing of the tank cover.

[0044] Operation process,

[0045] Manual operation process, electromagnetic valve operation as Figure 3 shown.

[0046] Opening process:

[0047] 1.1 Press the tank cover work button, the hydraulic oil control electromagnetic valve works, the barrel oil way is connected, the hydraulic oil from the oil pump passes through the valve to the opening electromagnetic valve.

[0048] 1.2 Press the opening button, the opening electromagnetic valve is electrified and works, the oil way is connected, the hydraulic oil provides pressure oil to the front and rear oil cylinders through the valve, the front and rear oil cylinders move, push the support to rotate, drive the tank cover to move and realize the turning,

[0049] 1.3 When the front and rear tank covers move to the position, the bottom of the front and rear supports starts to move, the tank cover opening electromagnetic valve power is cut off, the electromagnetic valve loses power and returns to the middle position, the four oil cylinders have no hydraulic oil supply and keep the original action without movement.

[0050] 1.4 At the same time, the electromagnetic valve in the cab is connected, the indicator light is on, indicating that the tank cover has been opened to the position; 2 closing process:

[0051] 2.1 Press the cover closing button, the cover closing solenoid valve is powered on, the oil circuit is connected, and the hydraulic oil provides pressure oil to the front and rear oil cylinders through the valve, the front and rear oil cylinders act, push the support to rotate, drive the tank cover to move and realize the tank cover back position,

[0052] 2.2 After the front and rear tank covers move to position, the front and rear support bottoms each have a travel switch start to act, cut off the tank cover closing solenoid valve power supply, the solenoid valve loses power and returns to the middle position, and the four oil cylinders have no hydraulic oil supply to keep the original action and cannot move.

[0053] 2.3 At the same time, the travel switch acts, the cab solenoid valve is connected, and the indicator light is on, indicating that the tank cover has been closed to position.

[0054] 2.4 Press the tank cover working button to cut off the hydraulic oil control solenoid valve, close the oil circuit, and cut off the hydraulic oil from the tank valve oil circuit.

[0055] Remote control operation process:

[0056] Before operation, first confirm that the vehicle is in the parking state, if not, pull up the hand brake handle, and let the car be in the parking state, at this time the parking red light is on. Then move the selection switch from the manual position to the remote control position, and the preparation work before the tank cover opening and closing action is completed.

[0057] 1. Press the cover opening button on the remote control, the tank cover is automatically opened. Stop automatically after reaching position.

[0058] 2. Press the cover closing button on the remote control, the tank cover is automatically closed. Stop automatically after reaching position.

[0059] Safety measures

[0060] 1. The driver must be on the ground when operating, and use manual or remote control to control the tank cover action on the ground. Only when standing on the ground can the operation be performed, and the driver cannot reach the switch when sitting in the cab.

[0061] 2. The tank cover opening or closing operation is interlocked with the vehicle gear, that is, the tank cover cannot act when driving, and the vehicle cannot move when the tank cover acts, preventing the tank cover from opening suddenly when driving or the vehicle from moving suddenly when the tank cover acts, and ensuring that no accidents occur.

[0062] 3. Interlocking principle: the power supply VCC of the gearbox computer and the power supply VCC of the tank cover opening and closing solenoid valve are controlled by the selection switch, and the selection switch handle can be switched between the two, that is, only two options, controlling the vehicle running or the tank cover closing and opening.

[0063] 4. The wire harness is protected by fireproof sleeve, and the wiring is away from heat source and fixed.

[0064] 5. The hydraulic oil pipe is protected by steel plate to avoid heat radiation.

[0065] It should be noted that the above examples are not intended to limit the scope of the present application, and equivalent transformations or substitutions made on the basis of the above technical solutions all fall within the scope of the claims of the present application.

Claims

1. A device for opening and closing the lid of a hot transport vehicle tank, characterized in that, The opening and closing device includes a mechanical system, a hydraulic system, and an electrical remote control system, wherein the electrical remote control system controls the movement of the hydraulic cylinder and links the mechanical system to operate by switching the circuit on and off.

2. The hot transport vehicle tank lid opening and closing device according to claim 1, characterized in that, The mechanical system includes a front base and reinforcing ribs, a front hydraulic cylinder mounted on the front base, a rear base and reinforcing ribs, a rear hydraulic cylinder mounted on the rear base, a front tank cover, a rear tank cover, a front cover bracket, a front cover reinforcing rib, a rear cover reinforcing rib, a rear cover bracket, a vehicle floor, and vehicle tires. The vehicle floor is mounted on the vehicle tires, the front and rear bases are fixed to the vehicle floor, the front tank cover is mounted on the front base, and the rear tank cover is mounted on the rear base.

3. The hot transport vehicle tank lid opening and closing device according to claim 2, characterized in that, The hydraulic system includes a gear pump, hydraulic oil tank, hydraulic filter, safety valve, relief valve, tank cover / solenoid valve, rear cover solenoid directional valve, front cover solenoid directional valve, front cover cylinder, and rear cover cylinder. The gear pump is installed next to the power take-off unit of the gearbox, the hydraulic oil tank is installed on the cab platform, the hydraulic filter is installed behind the engine compartment, the safety valve is installed behind the engine compartment, the relief valve is installed behind the engine compartment, the tank cover / solenoid valve is installed in the electrical control cabinet next to the engine compartment, the rear cover solenoid directional valve is installed in the electrical control cabinet next to the engine compartment, the front cover solenoid directional valve is installed in the electrical control cabinet next to the engine compartment, the front cover cylinder is installed on the front bracket, and the rear cover cylinder is installed on the rear front bracket.

4. The hot transport vehicle tank lid opening and closing device according to claim 3, characterized in that, The electrical remote control system includes a push-button switch, relays, wiring harnesses, indicator lights, and a position sensor installed in the power distribution cabinet next to the engine compartment; a position sensor installed in the rear base and reinforcing ribs; a position sensor installed in the front base and reinforcing ribs; and a volt-watt battery installed at the front of the vehicle.

5. The hot transport vehicle tank lid opening and closing device according to claim 3, characterized in that, The opening procedure is as follows: 1.1 Pressing the tank lid operation button activates the hydraulic oil control solenoid valve, connecting the tank oil circuit. Hydraulic oil flows from the oil pump through this valve to the lid opening solenoid valve. 1.2 Pressing the lid opening button energizes the lid opening solenoid valve, connecting the oil circuit. Hydraulic oil flows through the valve to supply pressurized oil to the front and rear cylinders respectively. The front and rear cylinders actuate, pushing the bracket to rotate, which in turn moves the can lid to achieve the flipping action. 1.3 After the front and rear can lids have moved into position, a limit switch at the bottom of each of the front and rear supports will activate, cutting off the power to the can lid opening solenoid valve. The solenoid valve will then return to its neutral position due to de-energization, and the four cylinders will remain stationary without hydraulic oil supply. 1.4 When the limit switch is activated, the solenoid valve in the cab is turned on and the indicator light is illuminated, indicating that the tank cover has been opened to the correct position; The closing procedure is as follows: 2.1 Pressing the lid-closing button energizes the lid-closing solenoid valve, connecting the oil circuit. Hydraulic oil flows through the valve to supply pressurized oil to the front and rear cylinders respectively. The front and rear cylinders actuate, pushing the bracket to rotate, which in turn moves the can lid to return it to its original position. 2.2 Once the front and rear can lids have moved to their positions, a limit switch at the bottom of each of the front and rear supports will activate, cutting off the power to the can lid closing solenoid valve. The solenoid valve will then return to its neutral position, and without hydraulic oil supply, the four cylinders will remain in their original positions and unable to move. 2.3 Simultaneously with the activation of the limit switch, the solenoid valve in the driver's cab is engaged, illuminating the indicator light to show that the tank lid is fully closed. 2.4 Press the tank cover working button to cut off the hydraulic oil control solenoid valve, close the oil circuit, and cut off the hydraulic oil from the oil pump to the tank closing valve oil circuit.

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