High-speed single-stand-column stacking machine with multiple cargo carrying tables

Abstract

The invention belongs to the technical field of automatic storage, and particularly relates to a multi-cargo-carrying-table high-speed single-stand-column stacking machine which comprises a lower cross beam, stand columns, an upper cross beam and cargo carrying tables, supporting wheels are arranged on the lower cross beam, the lower cross beam is pressed on a ground rail through the supporting wheels, the ground rail is installed on the ground, and the lower ends of the stand columns are connected with the lower cross beam through stand column bases. The upper end of the stand column is connected with an upper cross beam, a sky rail guide wheel is arranged on the upper cross beam, the sky rail guide wheel is matched with a sky rail installed at the top of a goods shelf, a plurality of goods carrying tables are sequentially arranged on the stand column in the vertical direction, and the ground rail is matched with a horizontal guide wheel, so that the stacking machine can linearly run in a roadway. The design that the driving wheel and the supporting wheel are separated is adopted, the clamping driving device is adopted for providing driving force for horizontal walking of the stacking machine, the magnitude of the driving force has no relation with the weight of the stacking machine through the operation mode, and the magnitude of the driving force can be adjusted only by adjusting the spring force of the clamping and tightening spring.

Description

Technical Field

[0001] The invention belongs to the technical field of automated warehousing, and in particular relates to a high-speed single-column stacker with multiple cargo platforms. Background Art

[0002] Traditional high-speed stackers are all rolled from aluminum profiles. Although aluminum profiles are light in weight, they have poor bending resistance and are expensive. Due to the problem of the press, the maximum length is limited, so the height of the stacker will not be too high, generally around 12 meters. If segmented technology is used, due to the different thermal expansion coefficients of aluminum alloys and metal parts, great stress will be generated, affecting the straightness and life of the entire column. Some manufacturers also use rectangular tube profiles as columns, but there are problems such as heavy weight and high motor energy consumption.

[0003] Traditional stackers can only be equipped with one loading platform, which is inefficient. Each time the stacker picks up or puts down goods at the entrance of the aisle, it will return to the aisle to put down or pick up goods. Each cycle can only carry out one pick-up and put-down process. In the process of picking up goods back and forth, a lot of time is wasted, which ultimately leads to insufficient efficiency of the entire machine.

[0004] The weight of the traditional stacker is pressed on the ground rail by the front and rear support wheels. The horizontal drive motor drives the support wheels to achieve horizontal operation of the stacker. The support wheels bear both the load and the torque of the drive wheels. The diameter of the wheels is relatively large and the cost is high. At the same time, due to its light weight, the weight provided by the stacker itself is not enough to meet the requirements of high acceleration, so the stacker will slip.

[0005] Conventional stackers are not equipped with safety clamps, which means that if the wire rope or belt breaks, the cargo platform and cargo will fall downward in a free-fall state, causing damage to the cargo platform and cargo.

[0006] In summary, traditional stackers have the following problems: 1. Low efficiency in picking and placing goods; 2. Severe welding deformation; 3. Goods stall prevention; 4. Heavy weight; Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a high-speed single-column stacker with multiple cargo platforms. The stacker of the present invention adopts a design in which the driving wheel and the supporting wheel are separated, and both the driving wheel and the supporting wheel are rubber-coated wheels to increase friction; a clamping drive device is used to provide the driving force for the stacker to walk horizontally. This operation mode makes the size of the driving force irrelevant to the weight of the stacker. The size of the driving force can be adjusted by adjusting the spring force of the clamping and tightening spring, thereby solving the low speed and slippage of the existing stacker.

[0008] In order to achieve the above technical objectives, the technical solution adopted by the embodiment of the present invention is: A high-speed single-column stacker with multiple cargo platforms comprises a lower crossbeam, a column, an upper crossbeam and a cargo platform, the lower crossbeam is provided with support wheels, the lower crossbeam is pressed on the ground rail through the support wheels, the ground rail is installed on the ground, the lower end of the column is connected to the lower crossbeam through a column base, the upper end of the column is connected to the upper crossbeam, the upper crossbeam is provided with a ceiling rail guide wheel, the ceiling rail guide wheel cooperates with the ceiling rail installed on the top of the shelf, a plurality of cargo platforms are arranged in sequence on the column in the vertical direction, the ground rail cooperates with the horizontal guide wheel, so that the stacker can run in a straight line in the lane.

[0009] Furthermore, a clamping drive device is provided at the front end of the lower cross beam, and the clamping drive device is installed on a clamping mounting seat through two clamping rotating shafts, and the clamping mounting seat is fixed on the lower cross beam, and the support wheels on the lower cross beam are used to support the weight of the stacker; The clamping drive device includes two left and right components, each of which includes a motor gearbox, a motor mounting seat and a driving wheel. The motor gearbox is arranged on the motor mounting seat, the motor mounting seat is arranged on the clamping mounting seat, the driving wheel is arranged on the motor mounting seat, and the ground rail is arranged between the two driving wheels. The driving force for the stacker to move horizontally is adjusted by adjusting the friction between the driving wheel and the ground rail.

[0010] Furthermore, a locking rod is installed at the front end of the clamping drive device, and a clamping locking spring is sleeved on the locking rod. A clamping baffle and a locking nut are respectively arranged at both ends of the clamping locking spring. The compression force of the clamping locking spring is adjusted by the locking nut, so that the two components are clamped or away from the ground rail with the clamping shaft as the fulcrum and the center line of the ground rail as the center, so as to adjust the friction between the driving wheels and the ground rail in the two components.

[0011] Furthermore, the column comprises a plate and a profile riveted together by a riveting process, the front end face of the column comprises two T profiles and a front cover plate riveted together, the side face of the column adopts a hollow thin plate, the rear end face of the column adopts a one-time formed U-shaped plate, and the front end face, the rear end face and two side faces of the column are spliced ​​together by rivets; The columns are connected in the vertical direction by riveting.

[0012] Furthermore, the column base is equipped with a lifting motor, a driving pulley, a reversing pulley and a tensioning pulley; A driven pulley is provided on the top of the column, and the driven pulley forms a ring mechanism with the driving pulley, the reversing pulley and the tensioning pulley through a synchronous belt. One side of the synchronous belt is installed at the lower end of the cargo platform, and the other side is installed at the upper end of the cargo platform. The lifting motor is used to drive the synchronous belt to lift and lower, the driving pulley is connected to the rotating shaft of the lifting motor, and the reversing pulley is used to convert the horizontal rotation of the lifting motor into a lifting and lowering movement in the vertical direction; the tensioning pulley is used to ensure that the synchronous belt is in a tensioned state.

[0013] Furthermore, a speed limiter is installed on one side of the column, and the speed limiter provides speed information to the safety clamp installed on the cargo platform through a steel wire rope. When the speed of the cargo platform exceeds a certain value, the safety clamp will act quickly to clamp the cargo platform to the column to protect the cargo on the cargo platform.

[0014] Furthermore, the driven pulley and the overhead rail guide wheel are arranged flat on the upper end surface of the upper cross beam to reduce the waste of top space.

[0015] Furthermore, the cargo platform includes N cargo platforms arranged in parallel up and down, one end of the synchronous belt is fixed to the top of the first cargo platform, and the other end is fixed to the bottom of the Nth cargo platform, and the N cargo platforms are connected by flexible materials, where N≥2.

[0016] Furthermore, two ground rail hydraulic buffers are installed at both ends of the lane, and two overhead rail hydraulic buffers are installed on the shelf. The ground rail hydraulic buffers and overhead rail hydraulic buffers buffer and slow down the stacker from the bottom and top respectively to prevent the stacker from rushing out of the lane.

[0017] Furthermore, a lifting deceleration switch and a lifting stop switch are respectively provided at the top and bottom of the cargo platform, and a lifting deceleration bracket and a lifting stop bracket are respectively provided at the top and bottom of the column. The lifting deceleration switch cooperates with the lifting deceleration bracket to decelerate the cargo platform, and the lifting stop switch cooperates with the lifting stop bracket to stop the movement of the cargo platform whose deceleration fails, thereby preventing the cargo platform from rushing out of the stacker.

[0018] The technical solution provided by the embodiment of the present invention has the following beneficial effects: 1. The stacker of the present invention adopts a design in which the driving wheel and the supporting wheel are separated, and both the driving wheel and the supporting wheel are rubber-coated wheels to increase friction; a clamping drive device is used to provide driving force for the stacker to move horizontally. This operation mode makes the size of the driving force have nothing to do with the weight of the stacker. The size of the driving force can be adjusted by adjusting the spring force of the clamping and tightening spring, thereby solving the low speed and slippage problems of the existing stacker.

[0019] 2. The stacker of the present invention adopts a single column form, which reduces the weight of the whole machine. The column includes a front face, a rear face and two side faces. The front face adopts T-shaped material and riveted to the connecting plate. In order to reduce the weight by reducing the thickness of the connecting plate, the back plate of the rear face adopts a bending process to increase the rigidity, and the side adopts a hollow web. The weight per meter of the column composed of T-shaped material, connecting plate, back plate and web is 30%-50% lower than that of the column composed of rectangular tube profile.

[0020] Since no welding process is used for the column from beginning to end, the deformation of the column can be minimized. At the same time, due to the use of a frame structure, the column is not limited by the cross-section and thickness of the profile. Compared with aluminum profiles, the frame structure column has high rigidity and can reduce the problem of top shaking by relying on its own rigidity. There is no need to use an anti-sway motor, which reduces costs.

[0021] 3. The stacker of the present invention is equipped with two or more cargo platforms at the same time, so as to realize the expectation of picking up and placing multiple goods in one access process, which greatly improves the efficiency of access. Adjacent cargo platforms are connected by flexible materials, so that multiple cargo platforms can pick up goods at the same time and in different time periods without being restricted from each other. The cargo platform adopts a double-depth design, and each cargo platform can hold 2 pieces of goods. At least 4 pieces of goods can be picked up in one cycle. Compared with the current single-cargo platform and single-depth stacker, the efficiency is significantly improved.

[0022] 4. The cargo platform of the stacker of the present invention is lifted by a synchronous belt, which has the characteristics of smooth operation, low noise, and no maintenance or lubrication, and can achieve the desired lifting acceleration and speed.

[0023] 5. The stacker of the present invention is provided with a rope-breaking prevention and overspeed protection device. The overspeed protection device is composed of a safety clamp, a speed limiter, a steel wire rope, and a pulley. When a synchronous belt breaks or a lifting motor stalls, the speed limiter detects that the descent speed of the cargo platform exceeds its limit value, and the speed limiter will be locked. The steel wire rope drives the slider in the safety clamp to move upward, clamping the T-shaped structure, preventing the cargo platform and the cargo from continuing to descend, and preventing the cargo from being damaged when the cargo platform falls; at the same time, it can also prevent harm to people.

[0024] 6. The stacker of the present invention is equipped with 4 buffers (including 2 overhead rail hydraulic buffers and 2 ground rail hydraulic buffers) to prevent the stacker from rushing out of the lane in extreme situations such as sudden power failure and component failure, causing property and personnel casualties.

[0025] 7. The stacker of the present invention is equipped with a deceleration switch and a stop switch on the top of the cargo platform to prevent the cargo from rushing out of the stacker, thus adding an extra layer of protection for safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic structural diagram of a high-speed single-column stacker with multiple cargo platforms in an embodiment of the present invention.

[0027] Figure 2 It is a front view of a high-speed single-column stacker with multiple cargo platforms in an embodiment of the present invention.

[0028] Figure 3 It is a left view of a high-speed single-column stacker with multiple cargo platforms in an embodiment of the present invention.

[0029] Figure 4 It is a top view of a high-speed single-column stacker with multiple cargo platforms in an embodiment of the present invention.

[0030] Explanation of reference numerals: 1-ground rail; 2-ground rail hydraulic buffer; 3-support wheel; 4-lower crossbeam; 5-cargo platform; 6-upright column; 7-upright column base; 8-front cover plate; 9-lifting deceleration switch; 10-lifting stop switch; 11-synchronous belt; 12-ceiling rail; 13-ceiling rail guide wheel; 14-rivet; 15-lifting stop bracket; 16-lifting deceleration bracket; 17-speed limiter; 18-wire rope; 19-safety clamp; 20-horizontal guide wheel; 21-upper crossbeam; 22-clamping drive device; 23-clamping mounting seat; 24-clamping bolt; 25-clamping gasket; 26-clamping nut; 2 7-clamping shaft; 28-motor gearbox; 29-motor mounting seat; 30-driving wheel; 31-locking rod; 32-locking nut; 33-clamping baffle; 34-clamping locking spring; 35-T profile; 36-hollow thin plate; 37-U-shaped plate; 38-lifting motor; 39-driving pulley; 40-tensioning pulley; 41-reversing pulley; 42-driven pulley; 43-upper buffer; 44-electric cabinet; 45-overhead rail hydraulic buffer; 46-pulley; 47-horizontal stop bracket; 48-horizontal deceleration bracket; 49-horizontal stop switch; 50-horizontal deceleration switch; 51-lower buffer. DETAILED DESCRIPTION

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] Example 1 A high-speed single-column stacker with multiple cargo platforms comprises a lower crossbeam 4, a column 6, an upper crossbeam 21 and a cargo platform 5. The lower crossbeam 4 is provided with a support wheel 3, and the lower crossbeam 4 is pressed on a ground rail 1 through the support wheel 3. The ground rail 1 is installed on the ground. The lower end of the column 6 is connected to the lower crossbeam 4 through a column base 7, and the upper end of the column 6 is connected to the upper crossbeam 21. The upper crossbeam 21 is provided with a ceiling rail guide wheel 13, and the ceiling rail guide wheel 13 cooperates with the ceiling rail 12 installed on the top of the shelf. A plurality of cargo platforms 5 are arranged in sequence on the column 6 in the vertical direction, and the ground rail 1 cooperates with the horizontal guide wheel 20, so that the stacker can run in a straight line in the lane.

[0034] A clamping drive device 22 is provided at the front end of the lower cross beam 4. The clamping drive device 22 is mounted on a clamping mounting seat 23 through two clamping rotating shafts 27. The clamping mounting seat 23 is fixed to the lower cross beam 4 through clamping bolts 24, clamping washers 25 and clamping nuts 26. The support wheels 3 on the lower cross beam 4 are used to support the weight of the whole machine. The clamping drive device 22 includes two left and right components, each of which includes a motor gearbox 28, a motor mounting seat 29 and a driving wheel 30. The motor gearbox 28 is arranged on the motor mounting seat 29, the motor mounting seat 29 is arranged on the clamping mounting seat 23, the driving wheel 30 is arranged on the motor mounting seat 29, and the ground rail 1 is arranged between the two driving wheels 30. The driving force for the stacker to move horizontally is adjusted by adjusting the friction between the driving wheel 30 and the ground rail 1.

[0035] The overhead rail guide wheel 13 and the driving wheel 30 are both polyurethane-coated wheels.

[0036] Specifically, a locking rod 31 is installed at the front end of the clamping drive device 22, and a clamping locking spring 34 is sleeved on the locking rod 31. A clamping baffle 33 and a locking nut 32 are respectively provided at both ends of the clamping locking spring 34. The compression force of the clamping locking spring 34 is adjusted by the locking nut 32. The two components use the clamping shaft 27 as a fulcrum and the center line of the ground rail 1 as the center to clamp or move away from the ground rail 1 to adjust the friction between the driving wheel 30 and the ground rail 1 in the two components.

[0037] The column 6 includes a plate and a profile riveted together by a riveting process. The front end face of the column 6 includes two T-profiles 35 and a front cover plate 8 riveted together. The side of the column 6 adopts a hollow thin plate 36. The rear end face of the column 6 adopts a U-shaped plate 37 formed in one step. The front end face, the rear end face and the two side faces of the column 6 are spliced ​​together by rivets 14. The columns 6 are connected in the vertical direction by riveting.

[0038] The column base 7 is equipped with a lifting motor 38, a driving pulley 39, a reversing pulley 41 and a tensioning pulley 40; A driven pulley 42 is provided at the top of the column 6, and the driven pulley 42 forms a ring mechanism with the driving pulley 39, the reversing pulley 41 and the tensioning pulley 40 through the synchronous belt 11. One side of the synchronous belt 11 is installed at the lower end of the cargo platform 5, and the other side is installed at the upper end of the cargo platform 5. The lifting motor 38 is used to drive the synchronous belt 11 to rise and fall. The driving pulley 39 is connected to the rotating shaft of the lifting motor 38, and the reversing pulley 41 is used to convert the horizontal rotation of the lifting motor 38 into a lifting movement in the vertical direction; the tensioning pulley 40 is used to ensure that the synchronous belt 11 is in a tensioned state.

[0039] A speed limiter 17 is installed on one side of the column 6. The speed limiter 17 provides speed information to a safety clamp 19 installed on the cargo platform 5 through a wire rope 18. When the speed of the cargo platform 5 exceeds a certain value, the safety clamp 19 quickly operates to clamp the cargo platform 5 on the column 6 to protect the cargo on the cargo platform 5.

[0040] The driven pulley 42 and the ceiling rail guide wheel 13 are arranged flat on the upper end surface of the upper cross beam 21, which effectively reduces the waste of the top space.

[0041] The cargo platform 5 includes N cargo platforms 5 arranged in parallel up and down, one end of the synchronous belt 11 is fixed to the top of the first cargo platform, and the other end is fixed to the bottom of the Nth cargo platform, and the N cargo platforms are connected by flexible materials, where N≥2.

[0042] As an embodiment, the cargo platform 5 includes an upper cargo platform and a lower cargo platform arranged in parallel up and down, one end of the synchronous belt 11 is fixed to the top of the upper cargo platform, and the other end is fixed to the bottom of the lower cargo platform, and the upper cargo platform and the lower cargo platform are connected by a flexible material.

[0043] Two ground rail hydraulic buffers 2 are installed at both ends of the lane, and two overhead rail hydraulic buffers 45 are installed on the shelf. The stacker is buffered and decelerated from the bottom and top by the ground rail hydraulic buffers 2 and the overhead rail hydraulic buffers 45 respectively to prevent the stacker from rushing out of the lane.

[0044] Specifically, the floor rail hydraulic buffer 2 and the ceiling rail hydraulic buffer 45 control the flow of hydraulic oil through the movement of the piston rod to slow down the stacker and absorb the energy generated by the impact, thereby protecting the components and shelves of the stacker and minimizing the damage caused by failure. When an emergency occurs, including a sudden power outage or a sudden failure of the motor gearbox 28, the floor rail hydraulic buffer 2 will work first, and after buffering to a certain extent, the ceiling rail hydraulic buffer 45 will work together with the floor rail hydraulic buffer 2 to prevent the stacker from rushing out of the lane and protect the safety of goods and people.

[0045] A lifting deceleration switch 9 and a lifting stop switch 10 are respectively provided at the top and bottom of the cargo platform 5, and a lifting deceleration bracket 16 and a lifting stop bracket 15 are respectively provided at the top and bottom of the column 6. The lifting deceleration switch 9 cooperates with the lifting deceleration bracket 16 to decelerate the cargo platform 5, and the lifting stop switch 10 cooperates with the lifting stop bracket 15 to stop the movement of the cargo platform 5 whose deceleration fails, so as to prevent the cargo platform 5 from rushing out of the stacker.

[0046] When the cargo platform 5 moves up and down, the lifting deceleration switch 9 and the lifting deceleration bracket 16 work together to gradually reduce the movement speed of the cargo platform 5; when the cargo platform 5 moves to the topmost or bottommost cargo grid, if the speed has not dropped to the required value, the cargo platform 5 continues to move until the lifting stop bracket 15 and the lifting stop switch 10 cooperate to disconnect the power supply of the controller installed inside the electrical cabinet 44 to prevent the cargo platform 5 from rushing out of the stacker.

[0047] When the cargo platform 5 moves to the point where the lifting stop switch 10 meets the lifting stop bracket 15, the lifting stop bracket 15 forces the lifting stop switch 10 to rotate a certain angle. During rotation, the signal of the lifting stop switch 10 changes, and the controller installed inside the electrical cabinet 44 disconnects the power supply to prevent the cargo platform 5 from rushing out of the stacker.

[0048] Specifically, when the cargo platform 5 moves upward, the lifting deceleration switch 9 located at the top of the cargo platform and the lifting deceleration bracket 16 located at the top of the column 6 work together to gradually reduce the rising speed of the cargo platform 5; when the cargo platform 5 moves to the topmost cargo compartment, if the speed has not dropped to the required value, the cargo platform 5 continues to move until the lifting stop bracket 15 located at the top of the column 6 cooperates with the lifting stop switch 10 located at the top of the cargo platform 5 to disconnect the power supply of the controller installed inside the electrical cabinet 44, thereby preventing the cargo platform 5 from rushing out of the top of the stacker.

[0049] Similarly, when the cargo platform 5 moves downward, the lifting deceleration switch 9 located at the bottom of the cargo platform and the lifting deceleration bracket 16 located at the bottom of the column 6 work together to gradually reduce the rising speed of the cargo platform 5; when the cargo platform 5 moves to the bottommost cargo compartment, if the speed has not dropped to the required value, the cargo platform 5 continues to move until the lifting stop bracket 15 located at the bottom of the column 6 cooperates with the lifting stop switch 10 located at the bottom of the cargo platform 5 to disconnect the power supply of the controller installed inside the electrical cabinet 44, thereby preventing the cargo platform 5 from rushing out of the bottom of the stacker.

[0050] The stacker is composed of a lower crossbeam 4, a column 6 and an upper crossbeam 21 to form an integral frame, each part of which is connected by bolts. The stacker as a whole is pressed on the ground rail 2 through the support wheel 3, and the ground rail 2 is fixed on the ground.

[0051] When the stacker moves in the horizontal direction, the ground rail 2 is clamped by the clamping drive device 22, and the size of the clamping force is achieved by adjusting the clamping tensioning spring 34. The whole stacker is driven in the horizontal direction by the motor gearbox 28. The clamping drive device 22 provides a horizontal driving force for the whole stacker, and the size of the driving force can be adjusted as needed.

[0052] In the vertical direction, the speed limiter 17 and the pulley 46 are installed on the column 6. After the wire rope 18 passes around the speed limiter 17 and the pulley 46, the end is fixed on the safety clamp 19. The safety clamp 19 is installed on the cargo platform 5. A pair of lifting deceleration brackets 16 and lifting stop brackets 15 are respectively arranged at the upper and lower ends of the column 6. The synchronous belt 11 is driven by the lifting motor 38. One end of the synchronous belt 11 is connected to the bottom of the lower cargo platform, and the other end is connected to the top of the upper cargo platform. The two cargo platforms are connected together by flexible accessories and move up and down through the synchronous belt 11. Under abnormal circumstances, when the upper cargo platform is lifted to near the top of the column, it first contacts the upper buffer 43, which is made of flexible materials including polyurethane or rubber, and is used to decelerate the cargo platform 5. If the deceleration is unsuccessful, the cargo platform 5 continues to rise. When the lifting deceleration switch 9 at the upper end of the upper cargo platform passes the lifting deceleration bracket 16, the lifting speed is further reduced. When it runs to the topmost cargo compartment, the lifting speed is reduced to 0, and the cargo platform 5 begins to stretch the fork to pick up the goods. If the speed of the cargo platform 5 in the last cargo compartment in the vertical direction does not drop to 0, after running a short distance, the lifting stop switch 10 will hit the lifting stop bracket 15. At this time, the lifting speed is forced to drop to 0. Even if the lifting deceleration switch 9 and the lifting stop switch 10 are all ineffective, the upper buffer 43 is also installed on the top of the upper crossbeam 21 to perform mechanical restrictions to prevent the cargo platform 5 from hitting the top. Similarly, when the cargo platform moves downward, the lower buffer first decelerates the cargo platform 5, and then the lifting deceleration switch 9 cooperates with the lifting deceleration bracket 16 to further decelerate the cargo platform 5, and finally, the lifting stop switch 10 cooperates with the lifting stop bracket 15 to completely stop the cargo platform 5. The lifting and lowering cargo platform 5 is decelerated through triple safety guarantees to ensure that the cargo platform 5 will not rush out of the column 6 to cause a safety accident.

[0053] Horizontal deceleration mechanism, horizontal stop structure and hydraulic buffer mechanism are provided on the ground at both ends of the lane. When the stacker runs to the end of the lane, the horizontal deceleration switch 50 and the horizontal deceleration bracket 48 work together to decelerate. Under normal circumstances, when the stacker runs to the last cargo compartment or workstation, the speed drops to 0. When the speed drop cannot meet the requirements, the stacker continues to move forward, and the horizontal stop switch 49 and the horizontal stop bracket 47 will force the stacker to stop. If it still cannot stop, the stacker will first contact the ground rail hydraulic buffer 2, and after running a distance, it will contact the ceiling rail hydraulic buffer 45. The ceiling rail hydraulic buffer 45 and the ground rail hydraulic buffer 2 act at the same time, and the hydraulic oil inside the buffer absorbs the energy generated by the impact, and the stacker is forced to stop by mechanical means to prevent the stacker from rushing out of the lane.

[0054] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A high-speed single-column stacker with multiple cargo platforms, characterized in that: The invention comprises a lower crossbeam (4), a column (6), an upper crossbeam (21) and a cargo platform (5), wherein the lower crossbeam (4) is provided with a support wheel (3), the lower crossbeam (4) is pressed onto the ground rail (1) via the support wheel (3), the ground rail (1) is installed on the ground, the lower end of the column (6) is connected to the lower crossbeam (4) via a column base (7), the upper end of the column (6) is connected to the upper crossbeam (21), the upper crossbeam (21) is provided with a ceiling rail guide wheel (13), the ceiling rail guide wheel (13) cooperates with a ceiling rail (12) installed on the top of the shelf, a plurality of cargo platforms (5) are arranged in sequence on the column (6) in a vertical direction, the ground rail (1) cooperates with a horizontal guide wheel (20), so that the stacker can run in a straight line in the lane.

2. The multi-cargo platform high-speed single-column stacker according to claim 1, characterized in that: A clamping drive device (22) is provided at the front end of the lower crossbeam (4); the clamping drive device (22) is mounted on a clamping mounting seat (23) via two clamping rotating shafts (27); the clamping mounting seat (23) is fixed on the lower crossbeam (4); and the support wheels (3) on the lower crossbeam (4) are used to support the weight of the entire stacker; The clamping drive device (22) comprises two left and right components, each component comprising a motor gearbox (28), a motor mounting seat (29) and a driving wheel (30); the motor gearbox (28) is arranged on the motor mounting seat (29), the motor mounting seat (29) is arranged on the clamping mounting seat (23), the driving wheel (30) is arranged on the motor mounting seat (29), the ground rail (1) is arranged between the two driving wheels (30), and the driving force for the stacker to travel in the horizontal direction is adjusted by adjusting the friction between the driving wheel (30) and the ground rail (1).

3. The multi-cargo platform high-speed single-column stacker according to claim 2, characterized in that: A locking rod (31) is mounted at the front end of the clamping drive device (22), and a clamping locking spring (34) is sleeved on the locking rod (31). A clamping baffle (33) and a locking nut (32) are respectively arranged at both ends of the clamping locking spring (34). The compression force of the clamping locking spring (34) is adjusted by the locking nut (32), so that the two components are clamped or moved away from the ground rail (1) with the clamping rotating shaft (27) as a fulcrum and the center line of the ground rail (1) as the center, so as to adjust the friction between the driving wheel (30) and the ground rail (1) in the two components.

4. The high-speed single-column stacker with multiple cargo platforms according to claim 1, characterized in that: The column (6) comprises a plate and a profile riveted together by a riveting process, the front end face of the column (6) comprises two T-profiles (35) and a front cover plate (8) riveted together, the side face of the column (6) adopts a hollow thin plate (36), the rear end face of the column (6) adopts a one-step formed U-shaped plate (37), and the front end face, rear end face and two side faces of the column (6) are spliced ​​together by rivets (14); The upright posts (6) are connected in the vertical direction by riveting.

5. The multi-cargo platform high-speed single-column stacker according to claim 1, characterized in that: The column base (7) is equipped with a lifting motor (38), a driving pulley (39), a reversing pulley (41) and a tensioning pulley (40); A driven pulley (42) is provided at the top of the column (6). The driven pulley (42) forms an annular mechanism with the driving pulley (39), the reversing pulley (41) and the tensioning pulley (40) through a synchronous belt (11). One side of the synchronous belt (11) is installed at the lower end of the cargo platform (5), and the other side is installed at the upper end of the cargo platform (5). The lifting motor (38) is used to drive the synchronous belt (11) to move up and down. The driving pulley (39) is connected to the rotating shaft of the lifting motor (38). The reversing pulley (41) is used to convert the rotation of the lifting motor (38) in the horizontal direction into a lifting movement in the vertical direction. The tensioning pulley (40) is used to ensure that the synchronous belt (11) is in a tensioned state.

6. The multi-cargo platform high-speed single-column stacker according to claim 1, characterized in that: A speed limiter (17) is installed on one side of the column (6). The speed limiter (17) provides speed information to a safety clamp (19) installed on the cargo platform (5) through a steel wire rope (18). When the speed of the cargo platform (5) exceeds a certain value, the safety clamp (19) quickly operates to clamp the cargo platform (5) on the column (6) to protect the cargo on the cargo platform (5).

7. The multi-cargo platform high-speed single-column stacker according to claim 5, characterized in that: The driven pulley (42) and the ceiling rail guide wheel (13) are arranged flat on the upper end surface of the upper crossbeam (21) to reduce the waste of top space.

8. The multi-cargo platform high-speed single-column stacker according to claim 5, characterized in that: The cargo platform (5) comprises N cargo platforms (5) arranged in parallel up and down, one end of the synchronous belt (11) is fixed to the top of the first cargo platform, and the other end is fixed to the bottom of the Nth cargo platform, and the N cargo platforms are connected by flexible materials, wherein N≥2.

9. The high-speed single-column stacker with multiple cargo platforms according to claim 1, characterized in that: Two floor rail hydraulic buffers (2) are installed at both ends of the lane, and two ceiling rail hydraulic buffers (45) are installed on the shelf. The floor rail hydraulic buffers (2) and the ceiling rail hydraulic buffers (45) buffer and reduce the speed of the stacker from the bottom and top respectively, so as to prevent the stacker from rushing out of the lane.

10. The multi-cargo platform high-speed single-column stacker according to claim 1, characterized in that: A lifting deceleration switch (9) and a lifting stop switch (10) are respectively arranged at the top and bottom of the cargo platform (5), and a lifting deceleration bracket (16) and a lifting stop bracket (15) are respectively arranged at the top and bottom of the column (6). The lifting deceleration switch (9) cooperates with the lifting deceleration bracket (16) to decelerate the cargo platform (5), and the lifting stop switch (10) cooperates with the lifting stop bracket (15) to stop the movement of the cargo platform (5) whose deceleration fails, thereby preventing the cargo platform (5) from rushing out of the stacker.

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