Electric control track connection mechanism of lifting platform with anti-falling function

Abstract

The present invention is an electric control track connection mechanism for a lifting platform with a fall prevention function. A translation track, a shaft pin, a linear guide rail, a driving motor, a synchronous rod, a connecting rod, a driving block, a rotating shaft and a folding track are respectively arranged on the lifting platform. Driving end seats are fixedly arranged at corresponding positions of the folding track. Through an electric control single-motor connecting rod synchronous drive rotating connection type track mechanism, the connection type folding track enables the lifting platform to have a fall prevention function when unfolded. It has low production cost, is practical and easy to install, and has simple maintenance. It better solves the problems that when an AGV handling trolley passes through the lifting operation gap between the translation track end of the lifting platform and the translation track end of the storage position, it will cause crosstalk, resulting in large running noise, easy damage of the track wheels, and the mechanical structure of the four groups of fall prevention mechanisms is complex with a high failure rate and high production cost. It also saves costs and materials, meeting the development trend and requirements of modern green, efficient, intelligent and convenient urban life.

Description

Technical Field

[0001] The present invention relates to the field of three-dimensional warehouses, and specifically to an electric control track connection mechanism of a lifting platform with a fall prevention function. Background Art

[0002] It is well known that the tracks of the lifting platform and the storage positions of the current plane mobile intelligent three-dimensional warehouse are both set in a segmented manner. A lifting operation gap needs to be left between the translation track end of the lifting platform and the translation track end of the storage position. When the track wheels of the AGV handling cart pass through this gap, they will generate a jump, resulting in a large running noise and easy damage to the track wheels. At the same time, four groups of fall prevention mechanisms are independently set on the lifting platform to meet the safety requirements. The mechanical structure of the four groups of fall prevention mechanisms is complex, with a high failure rate and high production costs. With the increasing demand for intelligent warehouses in China today, the number of plane mobile intelligent warehouses and the usage frequency of users for intelligent warehouses have increased rapidly. Solving the problems of large running noise of the AGV handling cart, easy damage to the track wheels, and the complex mechanical structure, high failure rate, and high production costs of the four groups of fall prevention mechanisms caused by the segmented structure of the translation track of the intelligent warehouse has become an urgent task. At the present stage, the implementation method of the fixed translation track type lifting platform adopted by the plane mobile intelligent warehouse has the following characteristics: ① A lifting operation gap is left between the translation track end of the lifting platform and the translation track end of the storage position. When the track wheels of the AGV handling cart pass through this gap, they will generate a jump, resulting in a large running noise and easy damage to the track wheels; ② Four groups of fall prevention mechanisms are independently set on the lifting platform to meet the safety requirements. The mechanical structure of the four groups of fall prevention mechanisms is complex, with a high failure rate and high production costs. Based on the characteristics of the current plane mobile intelligent warehouse using the AGV handling cart to exchange on the lifting platform, it is still necessary to solve the problems of large running noise of the AGV handling cart, easy damage to the track wheels, and the complex mechanical structure, high failure rate, and high production costs of the four groups of fall prevention mechanisms when the AGV handling cart passes through the lifting operation gap between the translation track end of the lifting platform and the translation track end of the storage position. Summary of the Invention

[0003] In order to overcome the problems that the fixed translation track type lifting platform applied in the existing plane mobile intelligent warehouse still needs to solve, such as the jump generated by the AGV handling cart when passing through the lifting operation gap between the translation track end of the lifting platform and the translation track end of the storage position, resulting in a large running noise and easy damage to the track wheels, and the complex mechanical structure, high failure rate, and high production costs of the four groups of fall prevention mechanisms, the purpose of the present invention is to provide an electric control type single-motor link synchronous drive rotary connection type track mechanism. When the connection type folding track is unfolded, the lifting platform has a fall prevention function, which can better solve the problems of large running noise of the AGV handling cart, easy damage to the track wheels, and the complex mechanical structure, high failure rate, and high production costs of the four groups of fall prevention mechanisms when the AGV handling cart passes through the lifting operation gap between the translation track end of the lifting platform and the translation track end of the storage position, that is, an electric control track connection mechanism of a lifting platform with a fall prevention function.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: at corresponding positions on the upper side of the lifting platform, a translation track, a shaft pin, a linear guide rail, a driving motor, an unfolding limit sensor and a folding limit sensor are respectively fixedly arranged. A folding track and a synchronizing rod are respectively movably arranged in cooperation with the shaft pin. At corresponding positions on the folding track, driving end seats are respectively fixedly arranged. Sliders are slidably arranged corresponding to the linear guide rail. Driving blocks are respectively fixedly arranged on the upper sides of the sliders. One end of the driver of the driving motor is fixedly connected to the corresponding position of one side of the driving block, and an induction block is fixedly arranged at the corresponding position of the other end of the driver of the driving motor. Rotating shafts are respectively fixedly arranged at corresponding positions on the upper sides of the driving end seats, the synchronizing rod and the driving block. A driving arm and a connecting rod are respectively movably connected to the rotating shafts arranged on the upper sides of the driving end seats, the synchronizing rod and the driving block. One end of the corresponding cable is respectively electrically connected to the driving motor, the unfolding limit sensor and the folding limit sensor, and the other end of the corresponding cable is led out and electrically connected to the corresponding ports of the three-dimensional warehouse control host. When the lifting platform electric control track connection mechanism is in a fully folded standby state, looking down, the folding track and the translation track are in an L shape, that is, the induction block stops on the folding limit sensor, and the folding track is retracted into the lifting platform. If the three-dimensional warehouse control host starts the lifting and storage operation process of the target three-dimensional layer, the three-dimensional warehouse control host first controls the lifting of the lifting platform to the target layer through other supporting electromechanical components, and then the three-dimensional warehouse control host controls the driving motor through the corresponding cable to synchronously push and unfold the driving block, the connecting rod, the synchronizing rod, the driving arm, the driving end seat and the folding track until, looking down, the folding track and the translation track are in a straight line. At this time, one end of the unfolded folding track extends into the steel structure of the target three-dimensional layer to form an anti-falling and guiding bearing state, and the induction block stops on the unfolding limit sensor. The three-dimensional warehouse control host then controls the AGV handling trolley to complete other storage and exchange operations through other supporting electromechanical components and retreats into the lifting platform. At this time, the track wheels of the AGV handling trolley respectively stop on the translation track. The three-dimensional warehouse control host then controls the driving motor through the corresponding cable to synchronously drag and retract the driving block, the connecting rod, the synchronizing rod, the driving arm, the driving end seat and the folding track until, looking down, the folding track and the translation track are in an L shape. At this time, the folding track is completely retracted into the lifting platform, and the induction block stops on the folding limit sensor. The three-dimensional warehouse control host then controls the lifting of the lifting platform to the target layer through other supporting electromechanical components to complete the storage process.

[0005] The beneficial effects of the present invention are as follows: An electronically controlled single-motor connecting rod synchronous drive rotating and continuous track mechanism is adopted. When the continuous folding track is unfolded, the lifting platform has an anti-falling function. It has low production cost, is practical, easy to install, and simple to maintain. It better solves the problems that when the AGV handling cart passes through the lifting and running gap between the translation track end of the lifting platform and the translation track end of the storage bin, it will cause crosstalk, resulting in large running noise, easy damage of the track wheels, and the mechanical structure of the four groups of anti-falling mechanisms is complex with a high failure rate and high production cost. It also saves costs and materials, meeting the development trends and requirements of modern green, efficient, intelligent and convenient urban life. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic top view of the overall structure in the fully unfolded state of the present invention.

[0007] Figure 2 It is a schematic top view of the overall structure in the fully folded state of the present invention.

[0008] Figure 3 It is a schematic right view of the overall structure in the fully folded state of the present invention.

[0009] Figure 4 It is a partially enlarged view of part A in the fully folded state of the present invention.

[0010] Figure 5 It is a partially enlarged view of part B in the fully folded state of the present invention.

[0011] Figure 6 It is a block diagram of the electronic control principle of the present invention.

[0012] In the figure: 1. Lifting platform, 2. Translation track, 3. Folding track, 4. Axle pin, 5. Linear guide rail, 6. Slide block, 7. Driving block, 8. Driving motor, 9. Driving end seat, 10. Rotating shaft, 11. Driving arm, 12. Connecting rod, 13. Synchronous rod, 14. Unfolding limit sensor, 15. Folding limit sensor, 16. Inductive block, 17. Cable, 18. Stereoscopic warehouse control host. DETAILED DESCRIPTION OF THE INVENTION

[0013] The present invention will be further described below in conjunction with the drawings and embodiments:

[0014] Refer to Fig. Figure 1 Fig. Figure 2 Fig. Figure 3 Fig. Figure 4 Fig. Figure 5, the arrow direction is forward. At corresponding positions on the upper side of the lifting platform 1, a translation track 2, a pin 4, a linear guide rail 5, a driving motor 8, an unfolding limit sensor 14, and a folding limit sensor 15 are fixedly arranged respectively. A folding track 3 and a synchronous rod 13 are movably arranged in cooperation with the pin 4 respectively. Driving end seats 9 are fixedly arranged at corresponding positions on the folding track 3. Sliders 6 are slidably arranged corresponding to the linear guide rail 5. Driving blocks 7 are fixedly arranged on the upper sides of the sliders 6 respectively. One end of the driver of the driving motor 8 is fixedly connected to the corresponding position of one side of the driving block 7, and an induction block 16 is fixedly arranged at the corresponding position of the other end of the driver of the driving motor 8. Rotating shafts 10 are fixedly arranged at corresponding positions on the upper sides of the driving end seats 9, the synchronous rod 13, and the driving blocks 7. The driving arms 11 and the connecting rods 12 are movably connected to the rotating shafts 10 arranged on the upper sides of the driving end seats 9, the synchronous rod 13, and the driving blocks 7 respectively.

[0015] Refer to the appendix Figure 6 , one end of the corresponding cable 17 is electrically connected to the driving motor 8, the unfolding limit sensor 14, and the folding limit sensor 15 respectively, and the other end of the corresponding cable 17 is led out and electrically connected to the corresponding ports of the three-dimensional warehouse control host 18; when the lifting platform electric control track connection mechanism is in the fully folded standby state, looking down, the folding track 3 and the translation track 2 are in an L shape, that is, the induction block 16 stops on the folding limit sensor 15, and the folding track 3 retracts into the lifting platform 1; if the three-dimensional warehouse control host 18 starts the lifting and access operation process of the target three-dimensional layer of the lifting platform 1, the three-dimensional warehouse control host 18 first controls the lifting of the lifting platform 1 to the target layer through other supporting electromechanical components, and then the three-dimensional warehouse control host 18 controls the driving motor 8 through the corresponding cable 17 to synchronously push and unfold the driving block 7, the connecting rod 12, the synchronous rod 13, the driving arm 11, the driving end seat 9, and the folding track 3 until looking down, the folding track 3 and the translation track 2 are in a straight line. At this time, one end of the unfolded folding track 3 extends into the steel structure of the target three-dimensional layer to form an anti-falling and guiding bearing state, and the induction block 16 stops on the unfolding limit sensor 14. The three-dimensional warehouse control host 18 then controls the AGV handling cart to complete other access and exchange operations through other supporting electromechanical components and retreats into the lifting platform 1. At this time, the track wheels of the AGV handling cart stop on the translation track 2 respectively. The three-dimensional warehouse control host 18 then controls the driving motor 8 through the corresponding cable 17 to synchronously drag and retract the driving block 7, the connecting rod 12, the synchronous rod 13, the driving arm 11, the driving end seat 9, and the folding track 3 until looking down, the folding track 3 and the translation track 2 are in an L shape. At this time, the folding track 3 is completely retracted into the lifting platform 1, and the induction block 16 stops on the folding limit sensor 15. The three-dimensional warehouse control host 18 then controls the lifting of the lifting platform 1 through other supporting electromechanical components to the target layer to complete the access process.

Claims

1. The electric control track connection mechanism of the lifting platform with anti-falling function is characterized in that: At corresponding positions on the upper side of the lifting platform (1), a translation track (2), a shaft pin (4), a linear guide rail (5), a driving motor (8), an unfolding limit sensor (14) and a folding limit sensor (15) are respectively fixedly arranged. A folding track (3) and a synchronizing rod (13) are respectively movably arranged in cooperation with the shaft pin (4). At corresponding positions on the folding track (3), driving end seats (9) are respectively fixedly arranged. Sliders (6) are slidably arranged corresponding to the linear guide rail (5). Driving blocks (7) are respectively fixedly arranged on the upper sides of the sliders (6). One end of the driver of the driving motor (8) is fixedly connected to a corresponding position of one of the driving blocks (7). An induction block (16) is fixedly arranged at a corresponding position at the other end of the driver of the driving motor (8). Rotating shafts (10) are respectively fixedly arranged at corresponding positions on the upper sides of the driving end seats (9), the synchronizing rod (13) and the driving blocks (7). A driving arm (11) and a connecting rod (12) are respectively movably connected to the rotating shafts (10) arranged on the upper sides of the driving end seats (9), the synchronizing rod (13) and the driving blocks (7). One end of a cable (17) connected to the driving motor (8) is electrically connected to the driving motor (8), the unfolding limit sensor (14) and the folding limit sensor (15) respectively. The other end of the corresponding cable (17) is led out and electrically connected to the corresponding ports of the three-dimensional warehouse control host (18). When the lifting platform electric control track connection mechanism is in a fully folded standby state, looking down, the folding track (3) and the translation track (2) are in an L shape, that is, the induction block (16) stops on the folding limit sensor (15), and the folding track (3) is retracted into the lifting platform (1).

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