A connection device between a pallet truck steel coil transport system and a pallet steel coil transport system

Abstract

A connecting device between a pallet truck steel coil transportation system and a pallet steel coil transportation system belongs to the technical field of logistics transportation. It includes a liftable heavy-duty roller conveyor (1), a pallet (3), a liftable light-duty roller conveyor (4), a turntable (5), a pallet roller conveyor vehicle (6), a track (7), a heavy-duty roller conveyor (8), and a light-duty roller conveyor (9). The pallet truck transportation replaces the truck transportation to complete the transportation of steel coils between the production line and the steel coil warehouse in the factory. It has good compatibility with the pallet steel coil transportation system. The pallet can easily run on the pallet roller conveyor vehicle and then be transported to the destination by the pallet roller conveyor vehicle. The advantages are that it does not require using a crane to load the coil, automatically transports the pallet and the steel coil of the pallet transportation system into the pallet truck transportation system, realizes the seamless connection between the pallet transportation system and the pallet truck transportation system; and has a high degree of automation, low labor intensity, and is safe and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel coil transportation, and particularly relates to a connecting device between a pallet truck steel coil transportation system and a pallet steel coil transportation system. Background Art

[0002] For more than 10 years, the steel coil transportation in metallurgical enterprises, especially in newly built hot rolling plants, has basically adopted the pallet transportation scheme, which is divided into two types: double-layer pallet transportation and double-row pallet transportation. The pallet transportation system in the 2250mm hot rolling plant of Magang is the world's first double-layer pallet transportation system, and the pallet transportation system in the 2250mm hot rolling plant of Shougang Jingtang is the world's first double-row pallet transportation system. The double-row pallet transportation technology has more obvious advantages than the double-layer type. Although the pallet transportation technology meets the fast-paced production requirements of modern hot rolling plants, it also has the following disadvantages: poor road passing ability, generally requiring an underground tunnel or elevated road to cross the road; the longer the transportation distance, the more motors and sensors are needed, not only increasing the workload of cable laying, but also reducing the reliability of equipment operation; large workload of civil construction, high precision requirements for equipment installation, and long construction period.

[0003] To solve the limitations of the above pallet transportation, Shougang International Engineering Corporation has developed the world's first new energy intelligent pallet truck steel coil transportation system with complete independent intellectual property rights in recent years. Compared with the pallet transportation system, it has more application advantages and innovation: powered by pure supercapacitors, the braking energy can be recovered, and the whole life cycle is pollution-free, meeting the concepts of green, environmental protection, low-carbon, and energy conservation; overcoming the limitations of traditional power supply methods, enabling transportation equipment to get rid of the dependence on cables, saving a large amount of cables, simplifying the construction plan, reducing project investment, and reducing operating costs; using rail transportation, greatly reducing transportation costs, having good road passing ability, and being able to cross-transport with social roads; using wireless communication, reducing the radiation of control cables and having a high degree of automation. The new energy intelligent pallet truck steel coil transportation system can completely replace the walking beam, fast chain, and pallet steel coil transportation system.

[0004] At present, many production lines adopt the pallet steel coil transportation system. The pallet steel coil transportation system has poor road passing ability when crossing the road. Generally, the combination of pallet steel coil transportation and automobile transportation is used to complete the steel coil transportation task between the production line and the steel coil warehouse in the factory. Using automobile transportation has high costs and pollutes the environment. For the steel coil transportation system of the original production line using the pallet steel coil transportation system, how to use the new energy intelligent pallet truck steel coil transportation system to complete the steel coil transportation task between the production line and the steel coil warehouse and the steel coil warehouse in the factory is a technical problem that needs to be solved by those skilled in the art at present. Summary of the Invention

[0005] The object of the present invention is to provide a connecting device between a pallet truck steel coil transportation system and a pallet steel coil transportation system, which solves the problem of how to automatically run the pallets of the pallet transportation system into the pallet truck transportation system. The pallet truck transportation replaces the truck transportation to complete the transportation of steel coils between the production line and the steel coil warehouse in the factory. It has good compatibility with the pallet steel coil transportation system. The pallet can easily run on the pallet roller path vehicle and then be transported to the destination by the pallet roller path vehicle.

[0006] The present invention includes a liftable heavy-duty roller path 1, a pallet 3, a liftable light-duty roller path 4, a turntable 5, a pallet roller path vehicle 6, a track 7, a heavy-duty roller path 8 and a light-duty roller path 9; the liftable heavy-duty roller path 1, the liftable light-duty roller path 4, the turntable 5, the track 7, the heavy-duty roller path 8 and the light-duty roller path 9 are all installed on the civil engineering foundation or bracket; the pallet 3 carrying the steel coil can stay on the liftable heavy-duty roller path 1, the pallet roller path vehicle 6 or the heavy-duty roller path 8; the empty pallet 3 can stay on the liftable heavy-duty roller path 1, the liftable light-duty roller path 4, the pallet roller path vehicle 6, the heavy-duty roller path 8 or the light-duty roller path 9; the liftable heavy-duty roller path 1 and the heavy-duty roller path 8 are on the heavy-duty line, and the liftable light-duty roller path 4 and the light-duty roller path 9 are on the light-duty line. The heavy-duty line and the light-duty line are arranged in parallel; the heavy-duty roller path 8 and the light-duty roller path 9 belong to the equipment in the pallet transportation system, and the pallet roller path vehicle 6, the track 7 and the turntable 5 belong to the equipment in the pallet truck transportation system; the pallet roller path vehicle 6 is on the track 7, and there is a pallet roller path on the pallet roller path vehicle 6. The pallet 3 carrying the steel coil is on the pallet roller path and can run on it.

[0007] The liftable heavy-duty roller path 1 described in this specification is installed between the heavy-duty roller path 8 and the turntable 5 to change the height of the pallet 3 carrying the steel coil coming from the heavy-duty roller path 8. When the pallet 3 carrying the steel coil on the heavy-duty roller path 8 runs onto the liftable heavy-duty roller path 1, under the action of the lifting devices of the liftable heavy-duty roller path (1) and the liftable light-duty roller path (4), the liftable heavy-duty roller path 1 and the pallet 3 carrying the steel coil on it are lifted to the same height as the roller surface of the pallet roller path vehicle 6, so that the pallet 3 carrying the steel coil can run onto the pallet roller path vehicle 6, and then the pallet roller path vehicle 6 completes the transportation of the pallet 3 carrying the steel coil; the liftable light-duty roller path 4 is installed between the turntable 5 and the light-duty roller path 9. Under the action of the lifting devices of the liftable heavy-duty roller path (1) and the liftable light-duty roller path (4), the roller surface of the liftable light-duty roller path 4 is kept at the same height as the roller surface of the pallet roller path vehicle 6 to receive the empty pallet 3 on the pallet roller path vehicle 6, and then it descends to the same height as the roller surface of the light-duty roller path 9. The liftable light-duty roller path 4 and the light-duty roller path 9 start to rotate, so that the empty pallet 3 runs onto the light-duty roller path 9, thereby returning the empty pallet 3 to the pallet transportation system; the turntable 5 is installed at the end of the track 7 to realize the turning of the pallet roller path vehicle 6.

[0008] The pallet 3 carrying the steel coil can run on the liftable heavy-duty roller conveyor 1 and the pallet roller car 6, and both can complete positioning; the empty pallet 3 can run on the liftable light-duty roller conveyor 4 and the pallet roller car 6, and both can complete positioning. The turntable 5 changes the running direction of the pallet roller car 6, and there are positioning devices on both the turntable 5 and the pallet roller car 6; the pallet roller car 6 is equipped with its own power supply and control system, can run independently on the track 7, and can complete precise positioning on the turntable 5.

[0009] For the liftable heavy-duty roller conveyor 1, liftable light-duty roller conveyor 4, rollerways of the pallet roller car 6, heavy-duty roller conveyor 8 and light-duty roller conveyor 9 of the present invention, there are rollerway motors and proximity switches, and the pallet 3 can run on them and complete the tracking and positioning of the pallet 3.

[0010] The lifting devices of the liftable heavy-duty roller conveyor 1 and liftable light-duty roller conveyor 4 of the present invention are driven by electric cylinders or hydraulic cylinders.

[0011] The pallet roller car 6 of the present invention includes a vehicle body 61, a heavy-duty roller conveyor 62, a rollerway motor 63, a driven roller 64, a locking device 65, a vehicle positioning device 66, a pallet positioning device 67, a transmission device 68, a charging rail 69, a traveling motor 610, a supercapacitor cabinet 611, and a control cabinet 612; the charging rail (69) is installed on the side of the vehicle body, and the supercapacitor cabinet 611 and the control cabinet 612 are installed on the vehicle body 61;

[0012] The heavy-duty roller conveyor 62, the driven roller 64, the locking device 65, and the pallet positioning device 67 are all installed above the vehicle body 61; the rollerway motor 63 is installed on the side of the vehicle body; the positioning device 66 and the transmission device 68 are installed below the vehicle body 61;

[0013] The rollerway motor 63 is connected to the heavy-duty roller conveyor 62, and the transmission device 68 is connected to the traveling motor 610.

[0014] On the turntable 5 of the present invention, there is an induction scale for positioning the pallet roller car 6, so that the pallet roller car 6 can complete positioning on the turntable 5.

[0015] The advantages of the present invention are that there is no need for an overhead crane to coil up, it can change the running height of the pallet, automatically transport the pallet and steel coil of the pallet transportation system to the pallet truck transportation system, and can automatically return the empty pallet to the pallet transportation system, realizing the seamless connection between the pallet transportation system and the pallet truck transportation system, with high automation, low labor intensity, and being safe and reliable. Brief Description of the Drawings

[0016] Figure 1 It is a plan view of the present invention.

[0017] Figure 2 It is an elevation view of the pallet roller car in the state of waiting to receive the pallet.

[0018] Figure 3 It is an elevation view of the pallet roller conveyor vehicle in the state of receiving the pallet.

[0019] Figure 4 It is an elevation view of the liftable light-load roller conveyor waiting to receive an empty pallet.

[0020] Figure 5 It is an elevation view of the liftable light-load roller conveyor after receiving the empty pallet and in the low position.

[0021] Figure 6 It is an elevation view of the pallet roller conveyor vehicle

[0022] In the figure, there are liftable heavy-load roller conveyor 1, steel coil 2, pallet 3, liftable light-load roller conveyor 4, turntable 5, pallet roller conveyor vehicle 6, track 7, heavy-load roller conveyor 8, light-load roller conveyor 9, vehicle body 61, heavy-load roller conveyor 62, roller conveyor motor 63, driven roller 64, locking device 65, vehicle positioning device 66, pallet positioning device 67, transmission device 68, charging rail 69, traveling motor 610, super capacitor cabinet 611, control cabinet 612. Specific implementation manners

[0023] The present invention includes a liftable heavy-duty roller table 1, a pallet 3, a liftable light-duty roller table 4, a turntable 5, a pallet roller table vehicle 6, a track 7, a heavy-duty roller table 8, and a light-duty roller table 9; the liftable heavy-duty roller table 1, the liftable light-duty roller table 4, the turntable 5, the track 7, the heavy-duty roller table 8, and the light-duty roller table 9 are all installed on a civil engineering foundation or a bracket; the pallet 3 carrying the steel coil 2 is on the liftable heavy-duty roller table 1, the pallet roller table vehicle 6, and the heavy-duty roller table 8; the empty pallet 3 is on the liftable heavy-duty roller table 1, the liftable light-duty roller table 4, the pallet roller table vehicle 6, the heavy-duty roller table 8, and the light-duty roller table 9; the liftable heavy-duty roller table 1 and the heavy-duty roller table 8 are on the heavy-duty line, the liftable light-duty roller table 4 and the light-duty roller table 9 are on the light-duty line, and the heavy-duty line and the light-duty line are arranged in parallel; the center line of one row of the two rows of tracks 7 coincides with the center line of the heavy-duty pallet transportation direction line, and the center line of the other row coincides with the center line of the light-duty pallet transportation direction line; the heavy-duty roller table 8 and the light-duty roller table 9 belong to the equipment in the pallet transportation system, and the pallet roller table vehicle 6, the track 7, and the turntable 5 belong to the equipment in the pallet vehicle transportation system; the pallet roller table vehicle 6 is on the track 7, there is a heavy-duty roller table 62 on the pallet roller table vehicle 6, the pallet 3 carrying the steel coil is on the heavy-duty roller table 62 and can run on it; the liftable heavy-duty roller table 1 is installed between the heavy-duty roller table 8 and the turntable 5, so as to change the height of the heavy-duty pallet 3 coming from the heavy-duty roller table 8, enabling the pallet 3 carrying the steel coil to run onto the pallet roller table vehicle 6, and then the pallet roller table vehicle 6 completes the transportation of the pallet 3 carrying the steel coil; the liftable light-duty roller table 4 is installed between the turntable 5 and the light-duty roller table 9, receives the empty pallet 3 on the pallet roller table vehicle 6 at a high position, and sends the empty pallet 3 to the light-duty roller table 9 at a low position to complete the return of the empty pallet 3 to the pallet transportation system; the turntable 5 is installed between the liftable heavy-duty roller table 1 and the liftable light-duty roller table 4 and the track 7 to realize the turning of the pallet roller table vehicle 6.

[0024] The turntable 5, the track 7, the heavy-duty roller table 8, and the light-duty roller table 9 are installed on a civil engineering foundation. The pallet 3 carrying the steel coil can run on the liftable heavy-duty roller table 1 and the pallet roller table vehicle 6, and both can complete positioning; the empty pallet 3 can run on the liftable light-duty roller table 4 and the pallet roller table vehicle 6, and both can complete positioning. The turntable 5 changes the running direction of the pallet roller table vehicle 6 and has a positioning device on it; the pallet roller table vehicle 6 has its own power supply and control system, can run independently on the track 7, and can complete precise positioning on the turntable 5.

[0025] The liftable heavy-duty roller table 1 and the liftable light-duty roller table 4 are both electrically driven and have a positioning device 67 for the pallet 3, and the pallet 3 can complete precise positioning above both; the power of the lifting devices of both can be electrically or hydraulically driven.

[0026] The pallet roller table vehicle 6 has a heavy-duty roller table 62, and both the pallet 3 carrying the steel coil and the empty pallet 3 can run on it, and it also has a pallet positioning device 67 and a locking device 65.

[0027] The operation mode of the present invention is as follows:

[0028] The turntable 5 rotates, and the pallet roller car 6 reaches the position of the pallet 3 carrying the steel coil. The pallet 3 carrying the steel coil runs onto the liftable heavy-duty roller table 1. After positioning, the liftable heavy-duty roller table 1 is driven by its lifting device to rise to a height where the roller surface of the liftable heavy-duty roller table 1 is at the same level as the roller surface on the pallet roller car 6. The rollers on the liftable heavy-duty roller table 1 and the pallet roller car 6 start to rotate, and the pallet 3 carrying the steel coil 2 is conveyed onto the pallet roller car 6. At the same time as positioning, the rollers on the pallet roller car 6 and the liftable heavy-duty roller table 1 also stop rotating. At this time, the liftable heavy-duty roller table 1 starts to descend to the initial position to prepare to receive the next pallet 3 carrying the steel coil 2. The pallet roller car 6 locks the pallet 3 carrying the steel coil. The traveling motor 610 of the pallet roller car 6 starts to operate. The pallet roller car 6 carries the pallet 3 carrying the steel coil and advances along the track 7. After reaching the destination, the steel coil 2 is unloaded. The pallet roller car 6 carries the empty pallet 3 forward and returns to the turntable 5. The lock on the empty pallet 3 is opened. At this time, the liftable light-duty roller table 4 is at the same height as the roller surface on the pallet roller car 6. The rollers on the pallet roller car 6 and the liftable light-duty roller table 4 start to rotate. The empty pallet 3 is driven by the rollers and stops on the liftable light-duty roller table 4. The liftable light-duty roller table 4 is driven by its lifting device to descend to the same height as the roller surface of the light-duty roller table 9. The light-duty roller table 9 and the liftable light-duty roller table 4 start to rotate. Driven by the rollers, the empty pallet 3 returns to the original pallet transportation system. The liftable light-duty roller table 4 is driven by its lifting device to rise to the height for receiving the empty pallet 3 to prepare to receive the next empty pallet 3. The turntable 5 rotates to transport the pallet roller car 6 to the position for receiving the pallet 3 carrying the steel coil to prepare to receive the pallet 3 carrying the steel coil.

[0029] The above embodiments are only the preferred implementation schemes of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, the technical solutions of the present invention can be modified or equivalently replaced, and these should also be regarded as within the scope of the claims of the present invention.

Claims

1. An interface device between a pallet truck steel coil transportation system and a pallet steel coil transportation system, characterized in that, it includes a liftable heavy-duty roller table (1), a pallet (3), a liftable light-duty roller table (4), a turntable (5), a pallet roller table vehicle (6), a track (7), a first heavy-duty roller table (8) and a light-duty roller table (9); the liftable heavy-duty roller table (1), the liftable light-duty roller table (4), the turntable (5), the track (7), the first heavy-duty roller table (8) and the light-duty roller table (9) are all installed on a civil engineering foundation or a bracket; the pallet (3) carrying the steel coil stays on the liftable heavy-duty roller table (1), the pallet roller table vehicle (6) or the first heavy-duty roller table (8); the empty pallet (3) stays on the liftable light-duty roller table (4), the pallet roller table vehicle (6), or the light-duty roller table (9); the liftable heavy-duty roller table (1) and the first heavy-duty roller table (8) are on the heavy-duty line, the liftable light-duty roller table (4) and the light-duty roller table (9) are on the light-duty line, and the heavy-duty line and the light-duty line are arranged in parallel; the pallet roller table vehicle (6) runs on the track (7); the liftable heavy-duty roller table (1) is installed between the first heavy-duty roller table (8) and the turntable (5). When the pallet (3) carrying the steel coil on the first heavy-duty roller table (8) runs onto the liftable heavy-duty roller table (1), under the action of the lifting device of the liftable heavy-duty roller table (1), the liftable heavy-duty roller table (1) and the pallet (3) carrying the steel coil thereon are lifted to the same height as the roller surface of the pallet roller table vehicle (6), so that the pallet (3) carrying the steel coil can run onto the pallet roller table vehicle (6), and then the pallet roller table vehicle (6) completes the transportation of the pallet (3) carrying the steel coil; the liftable light-duty roller table (4) is installed between the turntable (5) and the light-duty roller table (9). Under the action of the lifting device of the liftable light-duty roller table (4), the roller surface of the liftable light-duty roller table (4) is kept at the same height as the roller surface of the pallet roller table vehicle (6) to receive the empty pallet (3) on the pallet roller table vehicle (6), and then it descends to the same height as the roller surface of the light-duty roller table (9). The liftable light-duty roller table (4) and the light-duty roller table (9) start to rotate, so that the empty pallet (3) runs onto the light-duty roller table (9), thereby returning the empty pallet (3) to the pallet transportation system; the turntable (5) is installed at the end of the track (7) to realize the turning around of the pallet roller table vehicle (6). The lifting devices of the liftable heavy-duty roller table (1) and the liftable light-duty roller table (4) are driven by electric cylinders or hydraulic cylinders.

2. The interface device between a pallet truck steel coil transportation system and a pallet steel coil transportation system according to claim 1, characterized in that, there is an induction scale for positioning the pallet roller table vehicle (6) on the turntable (5), so that the pallet roller table vehicle (6) can complete positioning on the turntable (5).

3. The interface device between a pallet truck steel coil transportation system and a pallet steel coil transportation system according to claim 1, characterized in that, The described pallet roller conveyor vehicle (6) includes a vehicle body (61), a second heavy-duty roller conveyor, a roller conveyor motor (63), a driven roller (64), a locking device (65), a vehicle positioning device (66), a pallet positioning device (67), a transmission device (68), a charging rail (69), a traveling motor (610), a super capacitor cabinet (611), and a control cabinet (612).

4. The connecting device between the pallet car steel coil transportation system and the pallet steel coil transportation system according to claim 3, characterized in that, the charging rail (69) is installed on the side of the vehicle body, and the super capacitor cabinet (611) and the control cabinet (612) are installed on the vehicle body (61).

5. The connecting device between the pallet car steel coil transportation system and the pallet steel coil transportation system according to claim 3, characterized in that, the second heavy-duty roller conveyor (62), the driven roller (64), the locking device (65), and the pallet positioning device (67) are all installed above the vehicle body (61); the roller conveyor motor (63) is installed on the side of the vehicle body; the vehicle positioning device (66) and the transmission device (68) are installed below the vehicle body (61).

6. The connecting device between the pallet car steel coil transportation system and the pallet steel coil transportation system according to claim 3, characterized in that, the roller conveyor motor (63) is connected to the second heavy-duty roller conveyor (62), and the transmission device (68) is connected to the traveling motor (610).

7. The connecting device between the pallet car steel coil transportation system and the pallet steel coil transportation system according to claim 1, characterized in that, The turntable (5) rotates, and the pallet roller car (6) reaches the position of the pallet (3) carrying the steel coil. The pallet (3) carrying the steel coil runs onto the liftable heavy-duty roller conveyor (1). After positioning, the liftable heavy-duty roller conveyor (1) is driven by its lifting device and rises to a height where the roller surface of the liftable heavy-duty roller conveyor (1) is at the same level as the roller surface on the pallet roller car (6). The roller conveyors on the liftable heavy-duty roller conveyor (1) and the pallet roller car (6) start to rotate, and the pallet (3) carrying the steel coil (2) is transferred onto the pallet roller car (6). At the same time as positioning, the roller conveyor on the pallet roller car (6) and the liftable heavy-duty roller conveyor (1) also stop rotating. At this time, the liftable heavy-duty roller conveyor (1) starts to descend to the initial position to prepare to receive the next pallet (3) carrying the steel coil (2). The pallet roller car (6) locks the pallet (3) carrying the steel coil. The traveling motor (610) of the pallet roller car (6) starts to operate, and the pallet roller car (6) carries the pallet (3) carrying the steel coil and advances along the track (7). After reaching the destination, the steel coil (2) is unloaded. The pallet roller car (6) carries the empty pallet (3) forward and returns to the turntable (5). The lock on the empty pallet (3) is opened. At this time, the liftable light-duty roller conveyor (4) is at the same height as the roller surface on the pallet roller car (6). The roller conveyor on the pallet roller car (6) and the liftable light-duty roller conveyor (4) start to rotate. The empty pallet (3) is driven by the roller conveyor and stops on the liftable light-duty roller conveyor (4). The liftable light-duty roller conveyor (4) is driven by its lifting device and descends to the same height as the roller surface of the light-duty roller conveyor (9). The light-duty roller conveyor (9) and the liftable light-duty roller conveyor (4) start to rotate. Driven by the roller conveyor, the empty pallet (3) returns to the original pallet transportation system. The liftable light-duty roller conveyor (4) is driven by its lifting device and rises to the height to receive the empty pallet (3) to prepare to receive the next empty pallet (3). The turntable (5) rotates and transports the pallet roller car (6) to the position to receive the heavy-duty pallet (3) to prepare to receive the pallet (3) carrying the steel coil.

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