An overhead gantry device for transporting fuel tanks by conveyor belt

Abstract

The present invention relates to an overhead gantry device for transporting fuel tanks by a conveyor belt, characterized in that: the rear end of the fuel tank input area is docked with the front end of the feeding fuel tank buffer area, the rear end of the feeding fuel tank buffer area is docked with the front end of the lifting mechanism, the rear end of the lifting mechanism is docked with the front end of the overhead conveyor channel, the rear end of the overhead conveyor channel is docked with the front end of the lowering mechanism, the rear end of the lowering mechanism is docked with the front end of the discharging fuel tank buffer area, the rear end of the discharging fuel tank buffer area is docked with the front end of the fuel tank steering mechanism, the components are docked and conveyed and achieve a 90° rotational direction change, the rear end of the fuel tank steering mechanism is docked with the front end of the picking fuel tank buffer area, and the rear end of the picking fuel tank buffer area is docked with the front end of the fuel tank picking area; it reduces the labor intensity of manual handling, walking waste, and time waste, and reduces the auxiliary tool cost of using the attached trays and other carriers for empty and full exchange.

Description

Technical Field

[0001] The present invention relates to an overhead gantry device for transporting fuel tanks by a conveyor belt, which horizontally conveys the fuel tanks to the production line side through the conveyor belt. Background Art

[0002] At present, automobiles have become one of the main tools for mobile travel. In a rapidly developing society, to meet the needs of the social population, most automobile assembly plants have transformed from original manual operations to automated production operations. As an important part of an automobile, the fuel tank plays a crucial role in the transportation, production, and manufacturing process. In the previous production method, the fuel tank was manually transported from the incoming part area to the production line side. Facing the improvement of the production rhythm and the mixed-model production of different vehicle models, manual operations can no longer meet the production requirements. The use of overhead conveying equipment has become the mainstream of production operations. Among them, existing overhead conveying equipment places the parts in boxes or trays and then performs empty-full exchange to achieve the function of part conveyance. When in use, boxes or trays are required as carriers, and there is unnecessary time waste in the operation process. To solve the above problems and improve the production and transportation efficiency, an overhead gantry device for transporting fuel tanks by a conveyor belt is provided. Summary of the Invention

[0003] The purpose of the present invention is to provide an overhead gantry device for transporting fuel tanks by a conveyor belt, which uses the conveyor belt as a transportation carrier to achieve the horizontal conveying function. The parts can be directly placed on the conveyor belt and transported individually in a single layer, which is suitable for related projects with limited space and tight operation rhythms, and improves production efficiency, etc.

[0004] The technical solution of the present invention is realized as follows: An overhead gantry device for transporting fuel tanks by a conveyor belt includes a fuel tank input area, a feeding fuel tank buffer area, a lifting mechanism, an overhead conveying channel, a lowering mechanism, a discharging fuel tank buffer area, a fuel tank turning mechanism, a picking fuel tank buffer area, a fuel tank picking area, and a conveyor belt assembly; the direction of the fuel tank input port is the front end, and the opposite direction to the fuel tank input direction is the rear end. It is characterized in that: the rear end of the fuel tank input area is docked with the front end of the feeding fuel tank buffer area, the rear end of the feeding fuel tank buffer area is docked with the front end of the lifting mechanism, the rear end of the lifting mechanism is docked with the front end of the overhead conveying channel, the rear end of the overhead conveying channel is docked with the front end of the lowering mechanism, the rear end of the lowering mechanism is docked with the front end of the discharging fuel tank buffer area, the rear end of the discharging fuel tank buffer area is docked with the front end of the fuel tank turning mechanism, the parts are docked and conveyed and rotated 90° to change the direction, the rear end of the fuel tank turning mechanism is docked with the front end of the picking fuel tank buffer area, and the rear end of the picking fuel tank buffer area is docked with the front end of the fuel tank picking area;

[0005] On the base of the fuel tank input area, there is a cylinder with a stroke of 50 mm. At the top of the cylinder, there is a lifting platform. At the front end of the lifting platform, there is a motor. Above the motor, there is a power shaft of the feeding port. The driving wheel of the motor is connected to the power shaft of the feeding port by a chain. At the rear end of the lifting platform, there is a follower shaft of the feeding port. Horizontally distributed along the outer length direction of the power shaft of the feeding port and the follower shaft of the feeding port, there are 3 groups of conveyor belts with a length of 1360 mm and a width of 30 mm. On both sides of the center symmetry of the conveyor belt along the transportation direction, there are baffles. At the entrance of the fuel tank input area, there is an operation completion button;

[0006] Above the base of the feeding fuel tank buffer area, there is a conveyor belt assembly. The conveyor belt assembly consists of a fixed bracket, a driving motor, a main driving shaft, a driven shaft, and a conveyor belt. Among them, the fixed bracket is connected to the base of the feeding fuel tank buffer area. Inside the fixed bracket, there are a main driving shaft and a driven shaft at the front and rear. On the front side of the fixed bracket, the driving motor is fixed. The driving shaft of the driving motor is connected to the front main driving shaft inside the bracket. Horizontally sleeved on the outer sides of the main driving shaft and the driven shaft, there is a conveyor belt with a length of 1360 mm and a width of 780 mm. On one side of the conveyor belt along the transportation direction, there are a group of opposed photoelectric switches to detect the position of the fuel tank, determine the entry position, stop position of the fuel tank, and collect the overrun signal;

[0007] The lifting and hoisting mechanism uses a 160 mm×160 mm square steel as the guiding column. The guiding column is vertically fixed on the ground. At the top of the guiding column, a lifting motor is installed. A chain is sleeved on the driving gear of the motor for forward and reverse rotation. One end of the chain is connected to the counterweight, and the other end is connected to the moving tray of the lifting mechanism. A conveyor belt assembly is arranged on the moving tray to realize lifting the fuel tank from the feeding fuel tank buffer area to a high altitude for conveying operations;

[0008] On the high-altitude conveying channel, there is an anti-slip iron plate laid. The high-altitude conveying channel is divided into a 0.5-meter-wide maintenance channel and a 0.9-meter-wide transportation channel along the width direction. On the outside of the maintenance channel, there is a safety protection railing. The transportation channel is composed of 4 groups of conveyor belt assemblies spliced together;

[0009] The descending lifting mechanism has the same structure as the lifting and hoisting mechanism and is symmetrically fixed on the ground with the lifting and hoisting mechanism to realize picking up the fuel tank from the high-altitude conveying channel and conveying it to the discharging fuel tank buffer area;

[0010] The discharging fuel tank buffer area is composed of 5 groups of conveyor belt assemblies, which are horizontally arranged in sequence along the transportation direction and installed on the square steel base. On both sides of the outside of the discharging fuel tank buffer area, there are safety protection rails;

[0011] On the base of the fuel tank turning mechanism, a cylinder is horizontally arranged. At the top of the base, there is a conveyor belt assembly. The cylinder is used to rotate the top conveyor belt assembly by 90 degrees;

[0012] A set of conveyor belt assemblies placed perpendicular to the equipment transportation direction in the material-taking fuel tank buffer area, which is used to receive the fuel tank parts conveyed by the fuel tank steering mechanism and wait for picking up at this position.

[0013] The described fuel tank input area includes a base, which is a 1380mm×1080mm×860mm cuboid welded by square steel. The lower part of the base is connected to the anchor bolts and fixed on the ground. The cylinder fixing plate is set in the middle position of the base. A cylinder is set at the center position of the cylinder fixing plate. The top of the cylinder is connected to the center position of the lifting table through a universal ball head rod. Guide pins are set at the four top corners of the lifting table and inserted into the four guide holes of the cylinder fixing plate. A driving wheel is set on the horizontal conveyor driving motor. A chain is sleeved on the driving wheel and the transmission shaft to form a closed loop. The transmission shaft is fixed on the support frame. The support frame and the horizontal conveyor driving motor are fixed on the lifting table together. A belt guide wheel is set at the top of the support frame. The conveyor belt is sleeved outside the belt guide wheel and the transmission shaft. The support track is connected to the top of the base. Guide plates are set on both sides of the top of the base.

[0014] The base of the feeding fuel tank buffer area is a 1380mm×1080mm×860mm cuboid base welded by square steel.

[0015] The described lifting mechanism includes guide columns, which are vertically fixed on the ground perpendicular to the ground. Guide strips are set on both the left and right sides of the guide columns. The lifting tray is installed outside the guide strips and moves up and down along the guide strips. The conveyor belt assembly is fixed on the lifting tray for conveying fuel tank parts. A motor fixing plate is set at the top of the guide column. The pedestal gear shaft is fixed on both sides of the motor fixing plate. The lifting motor is inserted into the pedestal gear shaft and fixed on the motor fixing plate together. One end of the lifting chain is connected to the lifting tray and the other end is connected to the counterweight block and sleeved on the pedestal gear shaft.

[0016] The described high-altitude transmission channel is built by I-beams, with a horizontal span of 6 meters in length and 1.4 meters in width.

[0017] The described fuel tank steering mechanism is a 1400mm×1400mm×860mm cube base welded by square steel. A cylinder fixing bracket is set at the top of the base. A 90-degree rotating cylinder is set on the fixing bracket. The head of the rotating cylinder is connected to the rotating link. The rotating link is connected to the inside of the rotating bearing seat. The bearing seat fixing plate is fixed above the base. The rotating bearing seat is fixed on the bearing seat fixing plate. The conveyor belt fixing frame is connected to the inside of the rotating bearing seat. The conveyor belt assembly is fixed on the conveyor belt fixing frame. Horizontal limit blocks and vertical limit blocks are distributed at the top of the diagonal positions of the base.

[0018] The fuel tank picking area has the same structure as the fuel tank input area 1 and is arranged and installed perpendicular to the transportation direction.

[0019] The described conveyor belt assembly consists of a motor, a main drive shaft, a driven shaft, a conveyor belt fixing seat, a conveyor belt support frame, an anti-offset adjustment plate, a conveyor belt, an adjustment screw rod, a conveyor belt guide plate, an entry detection switch, a position detection switch, and an over-position detection switch. Among them, the conveyor belt fixing seat carries the conveyor belt support frame. The two ends of the conveyor belt support frame are respectively fixed with the main drive shaft and the driven shaft. One end of the main drive shaft is inserted into the motor, and the motor is fixed on the side of the conveyor belt fixing seat. The conveyor belt is sleeved on the outside along the main drive shaft through the conveyor belt support frame to the direction of the driven shaft. The two ends of the driven shaft are connected to the anti-offset adjustment plate. The adjustment screw rod is fixed at a position on the conveyor belt support frame close to the driven shaft and is used to adjust the angle of the driven shaft so as to adjust the conveyor belt. The conveyor belt guide plates are fixed on both sides of the conveyor belt support frame. The entry detection switch is fixed above the position on the conveyor belt guide plate close to the driven shaft. The position detection switch and the over-position detection switch are adjacent and fixed above the position on the conveyor belt guide plate close to the main drive shaft.

[0020] The opposed switch on the conveyor belt in the feeding oil tank buffer area emits a beam signal through the transmitter, and the receiver judges by receiving the presence or absence of the signal. When the oil tank part enters this area, the switch signal is blocked, and the receiver cannot recognize the beam signal, and feeds back the running position of the oil tank to the PLC for judgment, so as to control the operation of the conveyor belt motor and realize the functions of stopping in place and alarming for over-position.

[0021] The positive effect of the present invention is that the oil tank parts can realize long-distance transmission operations through the high-altitude gantry equipment that transports the oil tank by the conveyor belt, reducing the labor intensity of manual handling, the waste of walking, and the waste of time, and reducing the auxiliary tool cost of using the attached trays and other carriers for empty and full exchanges; it can reduce the manual handling intensity, improve the operation efficiency, and reduce problems such as waste of walking. If the daily output is 1000 units and a transfer operation is required for every 3 units, and it takes 90 seconds for a round trip of 40 meters for an empty and full exchange, then the number of handling times can be reduced by 1000÷3 = 333.3 times per day; the waste of walking can be reduced by 333.3×40 = 13332 meters; the waste of man-hours can be reduced by 90×333.3 = 29997 seconds = 8.3 hours, effectively improving the production and transportation efficiency. Brief Description of the Drawings

[0022] Figure 1 It is a three-dimensional view of a high-altitude gantry equipment for transporting an oil tank by a conveyor belt.

[0023] Figure 2 It is an internal three-dimensional view of the conveying equipment of the present invention.

[0024] Figure 3 It is an enlarged three-dimensional view of the input area of a high-altitude gantry equipment for transporting an oil tank by a conveyor belt according to the present invention.

[0025] Figure 4 It is a side view of the oil tank input area of the present invention.

[0026] Figure 5 This is an enlarged view of the lifting mechanism of the high-altitude gantry equipment for transporting fuel tanks by conveyor belt in the present invention.

[0027] Figure 6 This is an enlarged view of the steering mechanism of the high-altitude gantry equipment for transporting fuel tanks by conveyor belt in the present invention.

[0028] Figure 7 This is a three-dimensional view of the fuel tank steering mechanism of the present invention.

[0029] Figure 8 This is a schematic diagram of the conveyor belt assembly of the high-altitude gantry for transporting fuel tanks by conveyor belt. Specific embodiments

[0030] The present invention will be further described in detail below with reference to the accompanying drawings. As Figure 1-8 shown, a high-altitude gantry equipment for transporting fuel tanks by conveyor belt includes a fuel tank input area 1, a feeding fuel tank buffer area 2, a lifting mechanism 3, a high-altitude conveyor channel 4, a lowering mechanism 5, a discharging fuel tank buffer area 6, a fuel tank steering mechanism 7, a picking fuel tank buffer area 8, a fuel tank picking area 9, and a conveyor belt total layer 10; the direction of the fuel tank input port is the front end, and the opposite direction to the fuel tank input direction is the rear end. It is characterized in that: the rear end of the fuel tank input area 1 is docked with the front end of the feeding fuel tank buffer area 2, the rear end of the feeding fuel tank buffer area 2 is docked with the front end of the lifting mechanism 3, the rear end of the lifting mechanism 3 is docked with the front end of the high-altitude conveyor channel 4, the rear end of the high-altitude conveyor channel 4 is docked with the front end of the lowering mechanism 5, the rear end of the lowering mechanism 5 is docked with the front end of the discharging fuel tank buffer area 6, the rear end of the discharging fuel tank buffer area 6 is docked with the front end of the fuel tank steering mechanism 7, and the parts are docked and conveyed and rotated 90° to change the direction. The rear end of the fuel tank steering mechanism 7 is docked with the front end of the picking fuel tank buffer area 8, and the rear end of the picking fuel tank buffer area 8 is docked with the front end of the fuel tank picking area 9;

[0031] A cylinder with a stroke of 50 mm is provided on the base of the fuel tank input area 1. An elevating platform is provided at the top of the cylinder. A motor is provided at the front end of the elevating platform. A power shaft of the feeding port is provided above the motor. The motor driving wheel is connected to the power shaft of the feeding port by a chain. A follower shaft of the feeding port is provided at the rear end of the elevating platform. Three groups of conveyor belts with a length of 1360 mm and a width of 30 mm are transversely distributed on the outer sides of the power shaft of the feeding port and the follower shaft of the feeding port in the length direction. Baffles are provided on both sides of the center of the conveyor belt along the transportation direction. An operation completion button is provided at the entrance of the fuel tank input area;

[0032] Above the base of the feeding oil tank buffer area 2, there is a conveyor belt assembly 10, which consists of a fixed bracket, a driving motor, a main driving shaft, a driven shaft, and a conveyor belt. The fixed bracket is connected to the base of the feeding oil tank buffer area 2. The main driving shaft and the driven shaft are arranged at the front and rear inside the fixed bracket. The driving motor is fixed on the side of the front end of the fixed bracket, and the driving shaft of the driving motor is connected to the front main driving shaft inside the bracket. The main driving shaft and the driven shaft are sleeved with a conveyor belt that is 1360 mm long and 780 mm wide. On one side of the conveyor belt along the transportation direction, there are 3 sets of opposed photoelectric switches, which are used to detect the position of the oil tank, determine the entry position, stop position of the oil tank, and collect the overrun signal;

[0033] The lifting and hoisting mechanism 3 uses a 160 mm×160 mm square steel as a guide column. The guide column is vertically fixed on the ground. An elevating motor is installed at the top of the guide column. A chain is sleeved on the driving gear of the motor for forward and reverse rotation. One end of the chain is connected to a counterweight, and the other end is connected to the moving tray of the lifting mechanism. A conveyor belt assembly is arranged on the moving tray to realize lifting the oil tank from the feeding oil tank buffer area 2 to a high altitude for conveying operations;

[0034] The high-altitude conveying channel 4 is paved with anti-slip iron plates. The high-altitude conveying channel is divided into a 0.5-meter-wide maintenance channel and a 0.9-meter-wide transportation channel in the width direction. A safety guardrail is arranged outside the maintenance channel. The transportation channel is composed of 4 sets of conveyor belt assemblies spliced together;

[0035] The lowering and hoisting mechanism 5 has the same structure as the lifting and hoisting mechanism 3 and is symmetrically fixed on the ground with the lifting and hoisting mechanism 3 to realize receiving the oil tank from the high-altitude conveying channel and conveying it to the discharging oil tank buffer area 6;

[0036] The discharging oil tank buffer area 6 is composed of 5 sets of conveyor belt assemblies, which are horizontally arranged and installed on the square steel base in sequence along the transportation direction. Safety guardrails are arranged on both sides outside the discharging oil tank buffer area 6;

[0037] On the base of the oil tank turning mechanism 7, a cylinder is horizontally arranged, and a conveyor belt assembly is arranged on the top of the base. The cylinder is used to rotate the top conveyor belt assembly by 90 degrees;

[0038] The receiving oil tank buffer area 8 is a set of conveyor belt assemblies placed perpendicular to the equipment transportation direction, which is used to receive the oil tank parts conveyed by the oil tank turning mechanism 7 and wait for picking up at this position.

[0039] The described fuel tank input area 1 includes a base 101, which is a cuboid with dimensions of 1380mm×1080mm×860mm welded by square steel. The lower part of the base 101 is connected and fixed to the ground by anchor bolts 116. The cylinder fixing plate 102 is arranged at the middle position of the base 101. A cylinder 103 is arranged at the center position of the cylinder fixing plate 102. The top of the cylinder 103 is connected to the center position of the lifting platform 105 through a universal ball head rod. Guide pins 104 are arranged at the four top corners of the lifting platform 105, and the guide pins 104 are inserted into the four guide holes 115 of the cylinder fixing plate 102. A driving wheel 107 is arranged on the horizontal transfer driving motor 106. A chain 108 is sleeved on the driving wheel 107 and the transmission shaft 109 to form a closed loop. The transmission shaft 109 is fixed on the support frame 110, and the support frame 110 and the horizontal transfer driving motor 106 are fixed on the lifting platform 105 together. A belt guide wheel 114 is arranged at the top of the support frame 110. A conveyor belt 112 is sleeved outside the belt guide wheel 114 and the transmission shaft 109. The support track 111 is connected to the top of the base 101, and guide plates 113 are arranged on both sides of the top of the base 101.

[0040] The base of the feeding fuel tank buffer area 2 is a cuboid base with dimensions of 1380mm×1080mm×860mm welded by square steel.

[0041] The described lifting mechanism 3 includes guide columns 317, which are vertically fixed to the ground perpendicular to the ground. Guide strips 318 are arranged on both the left and right sides of the guide columns 317. The lifting tray 319 is installed outside the guide strips 318 and moves up and down along the guide strips 318. The conveyor belt assembly 10 is fixed on the lifting tray 319 for conveying fuel tank parts. A motor fixing plate 323 is arranged at the top of the guide column 317. A pedestal gear shaft 324 is fixed on both sides of the motor fixing plate. The lifting motor 325 is inserted into the pedestal gear shaft 324 and fixed on the motor fixing plate 323 together. One end of the lifting chain 322 is connected to the lifting tray 319, the other end is connected to the counterweight 321, and the lifting chain 322 is sleeved on the pedestal gear shaft 324.

[0042] The described high-altitude transfer channel 4 is built by I-beams, with a horizontal span of 6 meters in length and 1.4 meters in width.

[0043] The fuel tank steering mechanism 7 is a 1400mm×1400mm×860mm cube base welded by square steel. At the top of the base 726, there is a cylinder fixing bracket 727. On the fixing bracket 727, there is a 90-degree rotating cylinder 728. The head of the rotating cylinder 728 is connected to the rotating connecting rod 729. The rotating connecting rod 729 is internally connected to the rotating bearing seat 730. The bearing seat fixing plate 731 is fixed above the base 726, and the rotating bearing seat 730 is fixed on the bearing seat fixing plate 731. The conveyor belt fixing frame 732 is internally connected to the rotating bearing seat 730, and the conveyor belt assembly 10 is fixed on the conveyor belt fixing frame 732. Horizontally limiting blocks 733 and vertically limiting blocks 734 are distributed at the top of the diagonal positions of the base 726.

[0044] The fuel tank picking area 9 has the same structure as the fuel tank input area 1 and is arranged and installed perpendicular to the transportation direction.

[0045] Above the base of the feeding fuel tank buffer area 2, there is a conveyor belt assembly 10. The conveyor belt assembly 10 is composed of a motor 10-4, a main drive shaft 10-11, a driven shaft 10-12, a conveyor belt fixing seat 10-1, a conveyor belt support frame 10-2, an anti-offset adjustment plate 10-5, a conveyor belt 10-3, an adjustment screw rod 10-6, a conveyor belt guide plate 10-10, an entry detection switch 10-8, a in-place detection switch 10-9, and an over-position detection switch 10-7. Among them, the conveyor belt fixing seat 10-1 carries the conveyor belt support frame 10-2. The two ends of the conveyor belt support frame 10-2 are respectively fixed with the main drive shaft 10-11 and the driven shaft 10-12. One end of the main drive shaft 10-11 is inserted into the motor 10-4, and the motor 10-4 is fixed on the side of the conveyor belt fixing seat 10-1. The conveyor belt 10-3 is sleeved on the outside in the direction from the main drive shaft 10-11 through the conveyor belt support frame 10-2 to the driven shaft 10-12. The two ends of the driven shaft 10-12 are connected to the anti-offset adjustment plate 10-5. The adjustment screw rod 10-6 is fixed at the position of the conveyor belt support frame 10-2 close to the driven shaft 10-12 for adjusting the angle of the driven shaft 10-12 so as to adjust the conveyor belt 10-3. The conveyor belt guide plate 10-10 is fixed on both sides of the conveyor belt support frame 10-2. The entry detection switch 10-8 is fixed above the position of the conveyor belt guide plate 10-10 close to the driven shaft 10-12. The in-place detection switch 10-9 and the over-position detection switch 10-7 are fixed adjacent to each other above the position of the conveyor belt guide plate 10-10 close to the main drive shaft 10-11.

[0046] The opposed switch on the conveyor belt in the feeding fuel tank buffer area 2 emits a beam signal through the transmitter, and the receiver judges by receiving the presence or absence of the signal. When the fuel tank part enters this area, the switch signal is blocked, and the receiver cannot recognize the beam signal, and feeds back the running position of the fuel tank to the PLC for judgment, so as to control the operation of the conveyor belt motor, realizing the functions of stopping in place and alarming when over-positioned; the operation of the motor, the telescoping of the cylinder, and the operation of the photoelectric detection switch are all controlled by the PLC (programmable logic controller), and the conditions between the signals are fed back to the PLC for judgment to control the sequence of actions in each area.

[0047] During operation, the operator puts the fuel tank part into the fuel tank feeding area through the feeding port, presses the operation completion button, and the equipment starts to run. The lifting table is lifted by the lifting cylinder in the fuel tank feeding area and rises together with the 3 groups of conveyor belts, transporting the fuel tank part to the feeding fuel tank buffer area 2. Subsequently, the lifting cylinder descends, and the lifting table and the conveyor belt descend below the fuel tank sliding track, waiting for the operator to put in parts again.

[0048] The fuel tank part enters the feeding fuel tank buffer area 2 from the fuel tank feeding area. The conveyor belt in the feeding fuel tank buffer area 2 runs at the same speed as the conveyor belt in the fuel tank feeding area at the same time, receives the fuel tank part, and the opposed switch on the conveyor belt in the feeding fuel tank buffer area 2 starts to detect, monitors the running position of the fuel tank and feeds back to the conveyor belt to realize functions such as stopping in place and alarming when over-positioned.

[0049] After receiving the fuel tank part in the feeding fuel tank buffer area 2, the conveyor belt in the lifting and lifting mechanism 3 runs at the same speed as the conveyor belt in the feeding fuel tank buffer area 2 at the same time, realizing the transfer of the fuel tank part to the lifting and lifting mechanism 3. When the part arrives in place, the conveyor belt stops running, and the lifting motor at the top of the lifting and lifting mechanism 3 runs, driving the moving tray to lift through the chain, lifting the fuel tank part into the air to dock with the high-altitude conveyor channel 4.

[0050] After the lifting and lifting mechanism 3 reaches the air, the conveyor belt in the moving tray starts again. At the same time, the conveyor belt at the first position of the high-altitude conveyor channel starts at the same speed at the same time and transports under the monitoring of the opposed switch. After the fuel tank part completely enters the high-altitude conveyor channel, the moving tray of the lifting and lifting mechanism 3 realizes the falling function under the reverse action of the lifting motor, and stops at the bottom docking position waiting for the next docking and transfer.

[0051] After the conveyor belt in the high-altitude conveyor channel 4 receives the fuel tank part, two adjacent conveyor belts run at the same speed in sequence, transporting the fuel tank part one by one forward and arriving at the docking position with the lowering and lifting mechanism 5 waiting for the docking operation.

[0052] The mobile tray in the lowering and lifting mechanism 5 stays in the air at the initial position and waits. After there is a fuel tank component at the docking position of the high-altitude conveyor channel, the conveyor belts on the mobile tray in the lowering and lifting mechanism 5 start to run simultaneously at the same speed to receive the fuel tank component. After the fuel tank component completely enters the lowering and lifting mechanism 5, the conveyor belts stop working, and the top lifting motor starts to reverse, driving the mobile tray to fall to the bottom through the chain and stop at the docking position with the blanking fuel tank buffer area 6, waiting for docking and transmission.

[0053] The conveyor belt in the blanking fuel tank buffer area 6 runs simultaneously at the same speed as the conveyor belt in the lowering and lifting mechanism 5 to receive the fuel tank component. After the fuel tank component completely enters the blanking fuel tank buffer area 6, the mobile tray in the lowering and lifting mechanism 5 rises to the initial position in the air under the action of the top lifting motor and waits for the next docking and transmission. The fuel tank components in the blanking fuel tank buffer area 6 are conveyed one by one forward at the same speed by two adjacent conveyor belts simultaneously and reach the docking position with the fuel tank turning mechanism to wait for the docking operation.

[0054] The initial position of the fuel tank turning mechanism 7 is consistent with the equipment operation direction. After there is a fuel tank component at the docking position in the blanking fuel tank buffer area 6, the conveyor belt in the fuel tank turning mechanism starts to run simultaneously at the same speed as the conveyor belt at the docking position in the blanking fuel tank buffer area 6 for docking and transmission. After the fuel tank component completely enters the fuel tank turning mechanism, the conveyor belt stops running, and the horizontal cylinder at the lower part of the turning mechanism extends to rotate the fuel tank turning mechanism by 90 degrees to dock with the picking fuel tank buffer area 8.

[0055] After the picking fuel tank buffer area 8 is docked with the fuel tank turning mechanism 7, the two conveyor belts run simultaneously at the same speed to complete the fuel tank component transmission operation. When the fuel tank component completely enters the picking fuel tank buffer area 8, the lower cylinder of the fuel tank turning mechanism 7 retracts and returns to the docking position with the blanking fuel tank buffer area 6 to wait for the next docking and transmission. After the fuel tank component reaches the picking fuel tank buffer area 8, it conducts a transmission operation with the fuel tank picking area.

[0056] In the fuel tank picking area 9, the lifting cylinder raises the lifting platform to the same horizontal height as the picking fuel tank buffer area 8. The two conveyor belts run simultaneously at the same speed to convey the fuel tank component to the fuel tank picking area and the cylinder drops at the same time, waiting for the operator to pick up the component. After the picking is completed, the operator presses the operation completion button, and the cylinder rises again to conduct a docking operation with the picking fuel tank buffer area 8.

[0057] Such as Figure 1-2As shown in the figure, the overhead gantry equipment for transporting fuel tanks by conveyor belt includes a fuel tank input area 1. The fuel tank parts are placed on the support track 111 in the fuel tank input area 1. After pressing the operation completion button SB1, the conveyor belt 112 in the fuel tank input area 1 rises and runs under the action of the lifting cylinder 103, and conveys the fuel tank part parts to the feeding fuel tank buffer area 2. Then, it is docked with the lifting and lifting mechanism 3 through the feeding fuel tank buffer area 2 and conveyed to the conveyor belt assembly 10 in the lifting and lifting mechanism 3. Next, the lifting tray 319 in the lifting and lifting mechanism 3 lifts the fuel tank parts into the air and docks with the overhead transmission channel 4, and realizes horizontal transportation through the overhead transmission channel 4. Then, the lowering and lifting mechanism 5 picks up the fuel tank parts and docks and conveys them with the discharging fuel tank buffer area 6. The fuel tank parts are horizontally transported in the discharging fuel tank buffer area 6 and docked and conveyed with the fuel tank turning mechanism 7. The 90-degree rotating cylinder 728 in the fuel tank turning mechanism 7 adjusts the transportation direction of the fuel tank parts and then docks with the picking fuel tank buffer area 8. Then, it is docked with the fuel tank picking area 9 through the picking fuel tank buffer area 8, and the fuel tank parts are conveyed to the conveyor belt in the fuel tank picking area 9 to wait for the picking operation. In this way, the fuel tank parts are conveyed to the production line side for assembly and picking operations through the overhead gantry equipment for transporting fuel tanks by conveyor belt in a cycle.

[0058] As Figure 3-4 shown in the figure, the overhead gantry equipment for transporting fuel tanks by conveyor belt. The fuel tank input area 1 includes a base 101. The lower part of the base 101 is connected and fixed to the ground by the anchor feet 116. The cylinder fixing plate 102 is arranged at the middle position of the base 101. A cylinder 103 is arranged at the center position of the cylinder fixing plate 102. The top of the cylinder 103 is connected to the center position of the lifting table 105 through a universal ball head rod. Guide pins 104 are arranged at the four top corners of the lifting table 105. The guide pins 104 are inserted into the four guide holes 115 of the cylinder fixing plate 102. A driving wheel 107 is arranged on the horizontal transmission driving motor 106. A chain 108 is sleeved on the driving wheel 107 and the transmission shaft 109 to form a closed loop. The transmission shaft 109 is fixed on the support frame 110. The support frame 110 and the horizontal transmission driving motor 106 are fixed on the lifting table 105 together. A belt guide wheel 114 is arranged at the top of the support frame 110. The conveyor belt 112 is sleeved outside the belt guide wheel 114 and the transmission shaft 109. The support track 111 is connected to the top of the base 101. Guide plates 113 are arranged on both sides of the top of the base 101.

[0059] As Figure 5As shown in the figure, the lifting mechanism 3 of the high-altitude gantry equipment for transporting fuel tanks by conveyor belt includes a guiding column 317, which is vertically fixed to the ground. On both the left and right sides of the guiding column 317, guiding strips 318 are provided. The lifting tray 319 is installed outside the guiding strips 318 and functions to move up and down along the guiding strips 318. The conveyor belt assembly 10 is fixed to the lifting tray 319 for transporting fuel tank parts. At the top of the guiding column 317, there is a motor fixing plate 323. The pedestal gear shaft 324 is fixed on both sides of the motor fixing plate. The lifting motor 325 is inserted into the pedestal gear shaft 324 and fixed together on the motor fixing plate 323. One end of the lifting chain 322 is connected to the lifting tray 319, the other end is connected to the counterweight 321, and it is sleeved on the pedestal gear shaft 324. When the lifting motor 325 does work to lift the lifting tray 319, the counterweight 321 moves downward. When the lifting motor 325 reversely acts to lower the lifting tray 319, the counterweight 321 moves upward, providing a buffering function and preventing the lifting motor 325 from being overloaded and damaged.

[0060] As Figure 6-7 shown in the figure, the steering mechanism 7 of the high-altitude gantry equipment for transporting fuel tanks by conveyor belt includes a machine base 726. At the top of the machine base 726, there is a cylinder fixing bracket 727. On the fixing bracket 727, there is a 90-degree rotating cylinder 728. The head of the rotating cylinder 728 is connected to the rotating connecting rod 729. The rotating connecting rod 729 is internally connected to the rotating bearing seat 730. The bearing seat fixing plate 731 is fixed above the base 726. The rotating bearing seat 730 is fixed on the bearing seat fixing plate 731. The conveyor belt fixing frame 732 is internally connected to the rotating bearing seat 730. The conveyor belt assembly 10 is fixed to the conveyor belt fixing frame 732. Horizontally limiting blocks 733 and vertically limiting blocks 734 are distributed at the top of the diagonal positions of the base 726. When the rotating cylinder 728 extends, the conveyor belt assembly 10 rotates 90 degrees around the rotating bearing seat 730 and touches the horizontally limiting block 733 when reaching the position. When the rotating cylinder 728 retracts, the conveyor belt assembly 10 rotates back 90 degrees and touches the vertically limiting block 734 when in place.

[0061] As Figure 8As shown in the figure, the high-altitude gantry equipment for transporting fuel tanks by conveyor belt includes a conveyor belt assembly 10. The conveyor belt assembly 10 consists of a motor 10-4, a main drive shaft 10-11, a driven shaft 10-12, a conveyor belt fixing seat 10-1, a conveyor belt support frame 10-2, an anti-offset adjustment plate 10-5, a conveyor belt 10-3, an adjustment screw rod 10-6, a conveyor belt guide plate 10-10, an entry detection switch 10-8, a position-in-place detection switch 10-9, and an over-position detection switch 10-7. Among them, the conveyor belt fixing seat 10-1 carries the conveyor belt support frame 10-2. The two ends of the conveyor belt support frame 10-2 are respectively fixed with the main drive shaft 10-11 and the driven shaft 10-12. One end of the main drive shaft 10-11 is inserted into the motor 10-4, and the motor 10-4 is fixed on the side of the conveyor belt fixing seat 10-1. The conveyor belt 10-3 is sleeved on the outside in the direction from the main drive shaft 10-11 through the conveyor belt support frame 10-2 to the driven shaft 10-12. The two ends of the driven shaft 10-12 are connected to the anti-offset adjustment plate 10-5. The adjustment screw rod 10-6 is fixed at a position on the conveyor belt support frame 10-2 close to the driven shaft 10-12, and is used to adjust the angle of the driven shaft 10-12 so as to adjust the conveyor belt 10-3. The conveyor belt guide plate 10-10 is fixed on both sides of the conveyor belt support frame 10-2. The entry detection switch 10-8 is fixed above the position on the conveyor belt guide plate 10-10 close to the driven shaft 10-12. The position-in-place detection switch 10-9 and the over-position detection switch 10-7 are fixed adjacent to each other above the position on the conveyor belt guide plate 10-10 close to the main drive shaft 10-11.

[0062] Furthermore, an operator operation button SB1 is provided outside the input port of the high-altitude gantry equipment for transporting fuel tanks by conveyor belt. The fuel tank parts are placed on the support track 111 in the input area 1. When the completion button SB1 is pressed, the cylinder 103 extends, and the lifting platform 105 carried on the top and the conveyor belt 112 rise. The horizontal conveyor drive motor 106 starts to rotate forward. The fuel tank parts are conveyed forward under the condition that the conveyor belt 112 is running. At the same time, the conveyor belt assembly 10 in the upper fuel tank buffer area 2 starts to rotate forward. The entry detection switch 10-8 detects the entry of the fuel tank parts. When the fuel tank parts completely enter the buffer area Ⅰ, the position-in-place detection switch I detects that the fuel tank parts are in place. The conveyor belt Z12 in the input area and the conveyor belt assembly 10 in the upper fuel tank buffer area 2 stop running at the same time. The cylinder 103 in the input area retracts, and the lifting platform 105 and the conveyor belt 112 descend to the initial position and the horizontal height is lower than the support track 111. At this time, the operator can input the fuel tank parts again and convey them again according to the above requirements.

[0063] Further, the initial position of the lifting tray in the lifting mechanism 3 is at the bottom. When the in-place detection switch 10-9 in the feeding fuel tank buffer area 2 detects the fuel tank part, the conveyor belt assembly 10 in the feeding fuel tank buffer area 2 starts running again to convey the fuel tank part. At the same time, the conveyor belt assembly 10 in the lifting mechanism 3 also starts running. When the over-position detection switch 10-7 in the feeding fuel tank buffer area 2 detects the fuel tank part, the conveyor belt 112 in the input area 1 cannot operate for conveying. After the fuel tank part completely enters the lifting mechanism 3, the conveyor belt in the input area 1 can convey again to avoid collision of parts.

[0064] Further, after the in-place detection switch 10-9 on the conveyor belt assembly 10 in the lifting mechanism 3 detects that the part is in place, the conveyor belt stops running, and the lifting motor 325 in the lifting mechanism 3 can perform a lifting operation to lift the lifting tray 319 and the conveyor belt assembly 10 into the air for docking and conveying.

[0065] Further, after the lifting tray 319 reaches the air, the docking position conveyor belt assembly 10 in the high-altitude conveyor channel 4 and the conveyor belt assembly 10 carried on the lifting tray 319 run simultaneously. After the in-place detection switch 10-9 on the docking position conveyor belt assembly 10 in the high-altitude conveyor channel 4 detects that the part is in place, the lifting tray 319 can fall and reset to avoid dropping of the fuel tank part.

[0066] Further, in the high-altitude conveyor channel 4, the four groups of conveyor belt assemblies 10 start adjacent two conveyor belts in sequence to transport and convey the fuel tank part. After reaching the docking position with the lowering and lifting mechanism 5, the in-place detection switch 10-9 above the conveyor belt assembly 10 in the lowering and lifting mechanism 5 judges the presence of the part, and transports the fuel tank part to the bottom feeding fuel tank buffer area 6 through the lowering and lifting mechanism 5. After passing through the feeding fuel tank buffer area 6, it is docked with the fuel tank turning mechanism 7 to convey the fuel tank part to the position of the picking fuel tank buffer area 8, and then conveyed from the picking fuel tank buffer area 8 to the picking area 9 for picking and assembling operations. According to the above principle, the fuel tank part is conveyed from the offline spare parts area to the production line side.

Claims

1. An overhead gantry device for transporting fuel tanks by conveyor belt, including a fuel tank input area, a feeding fuel tank buffer area, a lifting mechanism, an overhead conveyor channel, a lowering mechanism, a discharging fuel tank buffer area, a fuel tank turning mechanism, a picking fuel tank buffer area, a fuel tank picking area, and a conveyor belt assembly; the direction of the fuel tank input port is the front end, and the opposite direction to the fuel tank input direction is the rear end. It is characterized in that: The rear end of the fuel tank input area is docked with the front end of the feeding fuel tank buffer area, the rear end of the feeding fuel tank buffer area is docked with the front end of the lifting mechanism, the rear end of the lifting mechanism is docked with the front end of the overhead conveyor channel, the rear end of the overhead conveyor channel is docked with the front end of the lowering mechanism, the rear end of the lowering mechanism is docked with the front end of the discharging fuel tank buffer area, the rear end of the discharging fuel tank buffer area is docked with the front end of the fuel tank turning mechanism, the parts are docked and conveyed and rotated 90° to change the direction, the rear end of the fuel tank turning mechanism is docked with the front end of the picking fuel tank buffer area, and the rear end of the picking fuel tank buffer area is docked with the front end of the fuel tank picking area; On the base of the fuel tank input area, there is a cylinder with a stroke of 50 mm. The top of the cylinder is provided with a lifting table. The front end of the lifting table is provided with a motor. Above the motor, there is a power shaft for the feeding port. The motor drive wheel is connected to the power shaft of the feeding port by a chain. The rear end of the lifting table is provided with a follower shaft for the feeding port. On the outer sides of the power shaft of the feeding port and the follower shaft for the feeding port in the length direction, 3 groups of conveyor belts with a length of 1360 mm and a width of 30 mm are transversely distributed. On both sides of the center of the conveyor belt along the transportation direction, there are baffles. On the entrance of the fuel tank input area, there is an operation completion button; Above the base of the feeding fuel tank buffer area, there is a conveyor belt assembly. The conveyor belt assembly consists of a fixed bracket, a driving motor, a main driving shaft, a driven shaft, and a conveyor belt. Among them, the fixed bracket is connected to the base of the feeding fuel tank buffer area. The main driving shaft and the driven shaft are arranged at the front and rear inside the fixed bracket. The driving motor is fixed on the front side of the fixed bracket. The driving shaft of the driving motor is connected to the front main driving shaft inside the bracket. On the outer sides of the main driving shaft and the driven shaft, there is a conveyor belt with a length of 1360 mm and a width of 780 mm. On one side of the conveyor belt along the transportation direction, there is a pair of photoelectric switches to detect the position of the fuel tank, determine the entry position, stop position of the fuel tank, and collect the overrun signal; The lifting mechanism uses a 160 mm×160 mm square steel as a guide column. The guide column is vertically fixed on the ground. The lifting motor is installed at the top of the guide column. The driving gear of the motor is sleeved with a chain for forward and reverse rotation. One end of the chain is connected to a counterweight, and the other end is connected to the moving tray of the lifting mechanism. A conveyor belt assembly is arranged on the moving tray to realize lifting the fuel tank from the feeding fuel tank buffer area to the overhead for conveying operation; The overhead conveyor channel is paved with anti-slip iron plates. The overhead conveyor channel is divided into a 0.5-meter-wide maintenance channel and a 0.9-meter-wide transportation channel in the width direction. There is a safety guardrail outside the maintenance channel. The transportation channel is composed of 4 groups of conveyor belt assemblies spliced together; The lowering mechanism has the same structure as the lifting mechanism and is symmetrically fixed on the ground with the lifting mechanism to realize picking up the fuel tank from the overhead conveyor channel and conveying it to the discharging fuel tank buffer area. The blanking fuel tank buffer area is composed of 5 groups of conveyor belt assemblies, which are horizontally arranged and installed on the square steel base in sequence along the transportation direction. Safety fences are provided on both sides outside the blanking fuel tank buffer area; A cylinder is horizontally arranged on the base of the fuel tank steering mechanism, and a conveyor belt assembly is arranged on the top of the base. The cylinder is used to rotate the top conveyor belt assembly by 90 degrees; The receiving fuel tank buffer area is a group of conveyor belt assemblies placed perpendicular to the equipment transportation direction, used to receive the fuel tank parts conveyed by the fuel tank steering mechanism and wait for picking up at this position.

2. An overhead gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that The fuel tank input area includes a base, which is a 1380mm×1080mm×860mm cuboid welded by square steel; the lower part of the base is connected to the anchor feet and fixed on the ground. The cylinder fixing plate is arranged at the middle position of the base, and a cylinder is arranged at the center position of the cylinder fixing plate. The top of the cylinder is connected to the center position of the lifting platform through a universal ball head rod. Guide pins are arranged at the four top corners of the lifting platform and inserted into the four guide holes of the cylinder fixing plate. A driving wheel is arranged on the horizontal transmission driving motor, and a chain is sleeved on the driving wheel and the transmission shaft to form a closed loop. The transmission shaft is fixed on the support frame, and the support frame and the horizontal transmission driving motor are fixed on the lifting platform together. A belt guide wheel is arranged at the top of the support frame, and the conveyor belt is sleeved outside the belt guide wheel and the transmission shaft. The support track is connected to the top of the base, and guide plates are arranged on both sides of the top of the base.

3. An overhead gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that The base of the feeding fuel tank buffer area is a 1380mm×1080mm×860mm cuboid base welded by square steel.

4. An overhead gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that The lifting and hoisting mechanism includes guide columns, which are vertically fixed on the ground perpendicular to the ground. Guide strips are arranged on both the left and right sides of the guide columns. The lifting tray is installed outside the guide strips and moves up and down along the guide strips. The conveyor belt assembly is fixed on the lifting tray for conveying fuel tank parts. A motor fixing plate is arranged at the top of the guide column, and a pedestal gear shaft is fixed on both sides of the motor fixing plate. The lifting motor is inserted into the pedestal gear shaft and fixed on the motor fixing plate together. One end of the lifting chain is connected to the lifting tray and the other end is connected to the counterweight and sleeved on the pedestal gear shaft.

5. An overhead gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that The overhead transmission channel is built by I-beams, with a horizontal spanning distance of 6 meters in length and 1.4 meters in width.

6. An overhead gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that The fuel tank steering mechanism is a 1400mm×1400mm×860mm cube base welded by square steel. A cylinder fixing bracket is provided at the top of the base. A 90-degree rotating cylinder is provided on the fixing bracket. The head of the rotating cylinder is connected to a rotating connecting rod. The rotating connecting rod is connected to the inside of a rotating bearing seat. A bearing seat fixing plate is fixed above the base. The rotating bearing seat is fixed on the bearing seat fixing plate. A conveyor belt fixing frame is connected to the inside of the rotating bearing seat. A conveyor belt assembly is fixed on the conveyor belt fixing frame. Transverse limit blocks and longitudinal limit blocks are distributed at the top of the diagonal positions of the base.

7. A high-altitude gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that the fuel tank picking area has the same structure as the fuel tank input area 1 and is arranged and installed perpendicular to the transportation direction.

8. A high-altitude gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that the conveyor belt assembly is composed of a motor, a main drive shaft, a driven shaft, a conveyor belt fixing seat, a conveyor belt support frame, an anti-offset adjustment plate, a conveyor belt, an adjustment screw rod, a conveyor belt guide plate, an entry detection switch, a in-place detection switch, and an over-position detection switch. Among them, the conveyor belt support frame is carried on the conveyor belt fixing seat. The main drive shaft and the driven shaft are respectively fixed at both ends of the conveyor belt support frame. One end of the main drive shaft is inserted into the motor. The motor is fixed on the side of the conveyor belt fixing seat. The conveyor belt is sleeved outside along the main drive shaft through the conveyor belt support frame to the direction of the driven shaft. Both ends of the driven shaft are connected to the anti-offset adjustment plate. The adjustment screw rod is fixed at a position of the conveyor belt support frame close to the driven shaft and is used to adjust the angle of the driven shaft so as to adjust the conveyor belt. The conveyor belt guide plates are fixed on both sides of the conveyor belt support frame. The entry detection switch is fixed above the conveyor belt guide plate close to the position of the driven shaft. The in-place detection switch and the over-position detection switch are fixed adjacent to each other above the conveyor belt guide plate close to the position of the main drive shaft.

9. A high-altitude gantry device for transporting fuel tanks by conveyor belt according to claim 1, characterized in that the opposed switch on the conveyor belt in the upstream fuel tank buffer area emits a beam signal through the transmitter. The receiver judges by receiving the presence or absence of the signal. When the fuel tank part enters this area, the switch signal is blocked and the receiver cannot recognize the beam signal. The running position of the fuel tank is fed back to the PLC for judgment, so as to control the operation of the conveyor belt motor and realize the functions of stopping in place and alarming for over-position.

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