Single-column automatic lifting stacker

Abstract

The application discloses a single-stand automatic lifting stacking machine, which comprises a rack, a lifting mechanism and a falling protection mechanism, the lifting mechanism comprises two wire entry wheels, two wire exit wheels and a first linear actuator, and the falling protection mechanism comprises a connecting rod, a deformation mechanism, a clamping rod and a jacking rod. The two wire entry wheels and the two wire exit wheels can better bear the goods compared with the single-wheel setting, the first linear actuator buffers the rack, and the transportation of the goods can be more rapid; when the loading platform falls, the connecting rod becomes a horizontal state, the abutting push rod on the connecting rod pushes the abutting rod, the whole U-shaped frame can slide out of the loading platform, the brake frame on the U-shaped frame can be in friction with the protection rail to brake and protect the loading platform; after the connecting rod becomes the horizontal state, the clamping rod and the jacking rod are bent from the original straight line, the connecting rod no longer rotates to the inclined state, and thus the locking effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of single-column stacking machine, in particular to a single-column automatic lifting stacking machine. BACKGROUND

[0002] The stacking machine is a very important logistics handling equipment in the stereoscopic warehouse, and its main purpose is to run along the fixed track in the high-level shelf warehouse, take out the goods on the designated roadway platform, and store them in the designated shelf compartment; or conversely, take out the goods in the designated shelf compartment and transport them to the designated roadway platform, to complete the corresponding warehouse operation.

[0003] With the continuous progress of technology and the continuous change of market demand, higher requirements are put forward for the performance of the single-column stacking machine. For example, higher access speed, greater load capacity, more stable operation performance and lower maintenance cost are required; and the existing stacking machine's anti-falling device not only has large weight, complex manufacturing, high manufacturing cost, but also has large maintenance difficulty and easy misoperation, therefore, a single-column automatic lifting stacking machine needs to be designed.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute the prior art. SUMMARY

[0005] Therefore, it is necessary to provide a single-column automatic lifting stacking machine aiming at the above technical problems.

[0006] In order to achieve the above purpose, the present application provides a single-column automatic lifting stacking machine, comprising:

[0007] A rack is slidingly installed on the ground rail and the overhead rail;

[0008] A lifting mechanism comprises a first rotary drive device, a steel rope traction wheel, an entry wheel, an exit wheel, a cargo platform, a lifting wheel, a buffer frame and two first linear actuators, the mounting end of the first rotary drive device and the steel rope traction wheel is installed on the rack, the output end of the first rotary drive device is in transmission connection with the steel rope traction wheel, two entry wheels and two exit wheels are rotatably installed at the top end of the rack, the cargo platform is slidingly connected to the rack, the lifting wheel is rotatably installed on the cargo platform, the buffer frame is installed on the rack, and the two first linear actuators are distributedly installed at both ends of the ground rail;

[0009] The invention discloses a falling protection mechanism, which comprises a protection steel rope, a deformation mechanism, a protection steel rail, a U-shaped frame, a brake frame, an abutting frame, a connecting rod, a friction wheel, an abutting push rod, an abutting rod, a clamping block, a clamping rod, a jacking rod and a limiting mechanism.

[0010] The goods can be moved to different places by the sliding of the frame on the ground rail and the sky rail. The steel rope wound on the steel rope traction wheel is drawn out from the wheel, passes through the two wire entry wheels and extends downward to the lifting wheel on the loading platform, passes through the lifting wheel and extends upward, passes through the two wire exit wheels and is fixed on the frame. The wire entry wheel and the wire exit wheel are equivalent to the fixed pulley and the movable pulley, which can better lift the lifting wheel, so as to lift the loading platform and the goods thereon. The lifting wheel can rotate by itself, which is more stable than the previous fixed lifting and is not easy to break at the connection. The wire entry wheel and the wire exit wheel are both two, so that the force of the steel rope on itself can be converted into the relative force between the two wire entry wheels or wire exit wheels, so that the bearing connection of the wire entry wheel and the wire exit wheel is not easy to be damaged, and heavier goods can be carried. When the frame moves to the two ends of the ground rail, the first straight line actuator can slow down and buffer, so that the frame can carry goods at a faster speed. When the loading platform normally rises and falls, the U-shaped frame can normally drive the friction wheel on the connecting rod to abut and rub against the protective steel rope. When the steel rope on the steel rope traction wheel is disconnected, the loading platform rapidly descends, the friction between the friction wheel and the protective steel rope increases, so that the friction wheel can drive the inclined connecting rod to rotate on the U-shaped frame, and the connecting rod changes from the original inclined state to the approximately horizontal state, so that the abutting push rod on the other side of the connecting rod can abut and collide with the abutting rod on the loading platform, so that the collision force can push the U-shaped frame out of the loading platform through the abutting frame. The brake frame on the U-shaped frame can abut and rub against the protective steel rail, so as to slow down the descent of the loading platform. When the connecting rod gradually changes from the inclined state to the horizontal state, the clamping rod in the clamping block can be driven outward by the top rod on the connecting rod. When the connecting rod completely changes to the horizontal state, the top rod completely pulls out the clamping rod, so that the top end of the clamping rod abuts against the clamping block. The clamping rod and the top rod are connected by the rotation of the universal ball, so that the angle change of the top rod during the outward movement can be adjusted by rotation. After the top rod completely pulls out the clamping rod, they are no longer in a straight line, so that the top rod is not easy to drive the clamping rod back to the original position, that is, the connecting rod is not easy to change from the horizontal state to the inclined state again. When the connecting rod is in the horizontal state, the abutting push rod thereon abuts against the abutting rod on the loading platform, and the brake frame abuts against the protective steel rail after the U-shaped frame is driven by the connecting rod to move out, so that the connecting rod cannot become inclined from the other direction, thereby achieving the purpose of locking. A baffle can be installed below the connecting rod to prevent it from becoming inclined from the other side when it is in the approximately horizontal state. When the connecting rod becomes horizontal, the friction wheel thereon also exerts pressure on the protective steel rope. At this time, the deformation mechanism at the top of the frame can be contracted to a certain extent, so that the protective steel rope can be smoothly lengthened. The abutting push rod rotating on the connecting rod can maintain a certain vertical state by the limiting rod, so as to facilitate the abutting and collision with the abutting rod.

[0011] Optionally, the protective steel rail is U-shaped, and the height of the side of the protective steel rail away from the loading platform is only half of the height of the other side.

[0012] By adopting the technical scheme, when the brake frame abuts against the guard rail for friction, the brake frame first abuts against one side of the guard rail for friction, and when the speed of the loading platform is still high, the brake frame can abut against the other side of the guard rail for friction, thereby further improving the braking effect on the loading platform.

[0013] Optionally, the deforming mechanism comprises a mounting seat, a moving seat, a rotating wheel, a deforming limiting rod and a spring, the mounting seat is mounted at the top end of the frame, the moving seat is slidably connected to the mounting seat through the deforming limiting rod, the rotating wheel is rotatably mounted on the moving seat, the guard rope passes through the rotating wheel, the spring is mounted on the mounting seat, and the output end of the spring is connected to the moving seat.

[0014] By adopting the technical scheme, when the guard rope is abutted and lengthened by the friction wheel, the guard rope can give pressure to the rotating wheel, so that the moving seat is pressed downward, and the moving seat can be lowered relative to the mounting seat through the guiding effect of the deforming limiting rod and the compression of the spring, and the moving seat can be supported upward again by the spring after the pressure of the guard rope disappears.

[0015] Optionally, the limiting mechanism comprises two mounting rings one, two mounting rings two and a spring two, the two mounting rings one are respectively mounted on the two ends of the abutting push rod, the two mounting rings two are both mounted on the abutting rod, and the two mounting rings two are located on the upper and lower sides of the abutting push rod, and the corresponding mounting ring one and the two mounting rings two are connected through the spring two.

[0016] By adopting the technical scheme, the mounting ring two on the abutting rod and the mounting ring one on the abutting push rod are connected through the spring two, so that the abutting push rod can be kept in a certain vertical state and the connecting rod can be kept in an inclined state, and when the connecting rod becomes an approximately horizontal state, the tension of the spring two is smaller than the friction force between the friction wheel and the guard rope when the loading platform is lowered, and the friction force is insufficient to make the connecting rod become inclined again.

[0017] Optionally, the U-shaped frame is provided with a through slot, a plurality of rollers one and rollers two are rotatably mounted on the loading platform, the rollers one and the rollers two both abut against the frame, and the rollers one and the abutting rod pass through the through slot.

[0018] By adopting the technical scheme, when the U-shaped frame is driven to slide out, the through slot makes the rollers one and the abutting rod not change positions, and the rollers one and the rollers two still abut against the frame, so that the sliding friction between the loading platform and the frame is reduced, and the abutting rod should also be provided with rollers and abut against the frame, so that the friction between the abutting rod and the frame is reduced.

[0019] Optionally, the lifting mechanism further comprises an electrical control cabinet, a terminal limiting switch and two layer selection recognition plates, the electrical control cabinet and the steel rope traction wheel are installed on the same side of the rack, the terminal limiting switch is installed on the loading platform, and the two layer selection recognition plates are installed on the upper and lower ends of the rack respectively, and the terminal limiting switch and the two layer selection recognition plates are cooperatively arranged.

[0020] By adopting the above technical scheme, the electrical control cabinet, the first rotary driving device and the steel rope traction wheel are installed on the same side, so that the overall structure of the stacking machine is more compact, and the lifting position of the loading platform can be determined through the cooperation of the terminal limiting switch on the loading platform and the upper and lower layer selection recognition plates.

[0021] Optionally, the lifting mechanism further comprises a motor mounting plate, a motor inclined plate and an L-shaped connecting plate, the motor mounting plate is installed on the rack, the motor inclined plate is installed on the motor mounting plate, the motor mounting plate and the motor inclined plate are connected through a horizontal rod at the bottom, the L-shaped connecting plate is installed on the motor inclined plate, the first rotary driving device is placed on the bottom plate of the L-shaped connecting plate and connected with the side plate of the L-shaped connecting plate, and the steel rope traction wheel is connected with the L-shaped connecting plate.

[0022] By adopting the above technical scheme, the motor mounting plate, the motor inclined plate and the horizontal rod at the bottom form a triangle, so that the installation of the first rotary driving device on the L-shaped plate and the steel rope traction wheel is more stable.

[0023] Optionally, the bottom of the rack is rotatably installed with a driving wheel and a driven wheel, the rack is installed with a second rotary driving device at the bottom, the output end of the second rotary driving device is in transmission connection with the driving wheel, the second rotary driving device is located below the electrical control cabinet, the front and rear ends of the rack in the advancing direction are rotatably installed with auxiliary wheels, and the driving wheel, the driven wheel and the auxiliary wheels are in abutment with the ground rail.

[0024] By adopting the above technical scheme, the second rotary driving device is installed below the electrical control cabinet, so that the structure of the whole stacking machine is more compact, the rack advances through the driving wheel and the driven wheel, and the auxiliary wheels assist the rack to move more stably.

[0025] Optionally, the side of the auxiliary wheel away from the rack is installed with a cleaning brush.

[0026] By adopting the above technical scheme, the ground rail is cleaned by the cleaning brush, so that the driving wheel, the driven wheel and the auxiliary wheel can advance more stably.

[0027] Optionally, the top of the rack is installed with an auxiliary wheel two, and the auxiliary wheel two is in abutment with the sky rail.

[0028] By adopting the above technical scheme, the rack advances more stably through the abutment and rotation of the auxiliary wheel and the sky rail.

[0029] This technical solution has at least the following beneficial effects:

[0030] 1. The steel rope on the steel rope traction sheave is supported by the rotation of the two input sheaves and the output sheave, and then lifts the rotatable lifting sheave on the loading platform. Thus, part of the pressure on the two input sheaves or the output sheave can be transformed into relative pressure between the two input sheaves or the output sheave. Compared with the single wheel setting, the two wheels can better support the goods, thereby increasing the load capacity. The first linear actuator installed on both sides of the ground rail buffers the running frame, so that it can decelerate better, thereby making the transportation of goods faster and improving the transportation efficiency.

[0031] 2. By setting up a connecting rod and its friction wheel and abutment push rod, when the loading platform falls, the friction between the friction wheel and the protective steel rope can make the connecting rod become horizontal. Then, the abutment push rod on the connecting rod pushes the abutment rod, allowing the entire U-shaped frame to slide off the loading platform. The brake frame on the U-shaped frame can cooperate with the protective steel rail to brake and protect the loading platform. Thus, the cost of the anti-fall device is further reduced through a simple structure.

[0032] 3. After the connecting rod becomes horizontal, the locking rod on the locking block can be driven out by the push rod, so that the locking rod and the push rod change from the original straight state to a bent state, so that the connecting rod can no longer turn from the horizontal state back to the tilted state, thus achieving a locking effect. This further reduces the cost of the fall protection device through a simple structure. Attached Figure Description

[0033] Figure 1 This is a perspective view of a polishing apparatus according to an embodiment of the present invention;

[0034] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged view of point A in the middle;

[0035] Figure 3 This is an embodiment of the present invention. Figure 1 Enlarged view at point B in the middle;

[0036] Figure 4 This is a perspective view of the lifting wheel according to an embodiment of the present invention;

[0037] Figure 5 This is a perspective view of the top of the rack according to an embodiment of the present invention;

[0038] Figure 6 This is a perspective view of a fall protection mechanism according to an embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of a fall protection mechanism according to an embodiment of the present invention;

[0040] Figure 8 Two perspective views of a fall protection mechanism according to an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram showing the structural changes at the card block according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the deformation mechanism according to an embodiment of the present invention;

[0043] Figure 11 This is a perspective view of the bottom of the frame and the ground rail according to an embodiment of the present invention;

[0044] Figure 12 This is a perspective view of the bottom of the frame according to an embodiment of the present invention from another direction;

[0045] Figure 13 This is a perspective view of the layer selection and addressing plate according to an embodiment of the present invention;

[0046] Figure 14 Two perspective views of the layer selection and addressing plate according to an embodiment of the present invention;

[0047] Figure 15 This is an embodiment of the present invention. Figure 1 Enlarged view at point C;

[0048] In the diagram, 1. Frame; 101. Drive wheel; 102. Driven wheel; 103. Second rotary drive device; 104. Auxiliary wheel; 105. Cleaning brush; 106. Second auxiliary wheel; 11. Ground rail; 12. Ceiling rail; 2. Lifting mechanism; 201. Electrical control cabinet; 202. Terminal limit switch; 203. Floor selection and addressing plate; 204. Motor mounting plate; 205. Motor inclined plate; 206. L-shaped connecting plate; 21. First rotary drive device; 22. Steel rope traction sheave; 23. Infeed sheave; 24. Outfeed sheave; 25. Loading platform; 26. Lifting wheel; 27. Buffer frame; 28. First linear actuator; 3. Fall protection device. Structure; 301, Protective steel rope; 302, Deformation mechanism; 3021, Mounting base; 3022, Moving base; 3023, Rotating wheel; 3024, Deformation limit rod; 3025, Spring; 303, Protective steel rail; 304, U-shaped frame; 3041, Through groove; 3042, Roller one; 3043, Roller two; 305, Brake frame; 306, Abutment frame; 307, Connecting rod; 308, Friction wheel; 309, Abutment push rod; 310, Abutment rod; 311, Locking block; 312, Locking rod; 313, Top rod; 314, Limiting mechanism; 3141, Mounting ring one; 3142, Mounting ring two; 3143, Spring two. Detailed Implementation

[0049] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] Please see Figures 1 to 10 This application provides a single-column automatic lifting stacker crane, comprising:

[0051] The frame 1 is slidably mounted on the ground rail 11 and the ceiling rail 12;

[0052] The lifting mechanism 2 includes a first rotary drive device 21, a steel rope traction sheave 22, an infeed sheave 23, an outfeed sheave 24, a loading platform 25, a lifting sheave 26, a buffer frame 27, and two first linear actuators 28. The first rotary drive device 21 is a servo motor and is connected to the steel rope traction sheave 22 via a reducer. The first linear actuators 28 can be hydraulic cylinders. The mounting ends of the first rotary drive device 21 and the steel rope traction sheave 22 are mounted on the frame 1. The output end of the first rotary drive device 21 is connected to the steel rope traction sheave 22. Two infeed sheaves 23 and two outfeed sheaves 24 are rotatably mounted on the top of the frame 1. The loading platform 25 is slidably engaged with the frame 1. The lifting sheave 26 is rotatably mounted on the loading platform 25. The buffer frame 27 is mounted on the frame 1. The two first linear actuators 28 are distributed and mounted at both ends of the ground rail 11.

[0053] The fall protection mechanism 3 includes a protective steel rope 301, a deformation mechanism 302, a protective steel rail 303, a U-shaped frame 304, a brake frame 305, an abutment frame 306, a connecting rod 307, a friction wheel 308, an abutment push rod 309, an abutment rod 310, a locking block 311, a locking rod 312, a push rod 313, and a limiting mechanism 314. The brake frame 305 has several threaded holes for installing friction blocks, which abut against and rub against the protective steel rail 303. The bottom end of the protective steel rope 301 is fixedly installed on the frame 1. The deformation mechanism 302 and the protective steel rail 303 are both installed on the frame 1. The top end of the protective steel rope 301 passes through the deformation mechanism 302. The U-shaped frame 304 is slidably engaged on the loading platform 25. The brake frame 305 and the abutment frame 306 are both installed... In the U-shaped frame 304, the brake frame 305 is configured to cooperate with the protective rail 303. The connecting rod 307 is rotatably mounted on the abutment frame 306. A friction wheel 308 is rotatably mounted on one end of the connecting rod 307. The friction wheel 308 abuts with the protective steel rope 301. An abutment push rod 309 is rotatably mounted on the end of the connecting rod 307 away from the friction wheel 308. An abutment rod 310 is mounted on the loading platform 25. The abutment push rod 309 and the abutment rod 310 are configured to cooperate. A locking block 311 is mounted on the abutment frame 306. A locking rod 312 is slidably locked in the locking block 311. A top rod 313 is rotatably mounted on the bottom of the locking rod 312 through a universal ball. The end of the top rod 313 away from the locking rod 312 is mounted on the connecting rod 307. A limit mechanism 314 is mounted on the abutment rod 310.

[0054] The frame 1 can move goods to different locations by sliding on the ground rail 11 and the overhead rail 12. The steel rope wound on the steel rope traction sheave 22 is led out, passes through the two feed sheaves 23, and extends downward to the lifting sheave 26 on the loading platform 25. After passing through it, it extends upward and exits through the two output sheaves 24 and is fixed to the frame 1. Thus, the feed sheaves 23 and output sheaves 24 are equivalent to fixed pulleys and movable pulleys, which can better lift the lifting sheave 26, thereby lifting the loading platform 25 and the goods on it. The 26 itself can rotate, which is more stable than the previous fixed lifting type and the connection is not easy to break. There are two inlet pulleys 23 and two outlet pulleys 24, so the force of the steel rope on itself can be converted into the relative force between the two inlet pulleys 23 or outlet pulleys 24. Therefore, the bearing connection of the inlet pulley 23 and outlet pulley 24 is not easily damaged, and it can carry heavier goods. When the frame 1 moves to both ends of the ground rail 11, the first linear actuator 28 can decelerate and buffer it, so that the frame 1 can carry goods at a faster speed.When the loading platform 25 is raised and lowered normally, the U-shaped frame 304 can drive the friction wheel 308 on the connecting rod 307 to normally abut against the protective steel rope 301. However, when the steel rope on the steel rope traction sheave 22 breaks, the loading platform 25 falls rapidly, and the friction between the friction wheel 308 and the protective steel rope 301 increases. As a result, the friction wheel 308 can drive the inclined connecting rod 307 to rotate on the U-shaped frame 304, changing it from its original inclined state to a near-horizontal state. Thus, the abutment push rod 309 on the other side of the connecting rod 307 can abut against the abutment rod 310 on the loading platform 25, thereby... The impact force can push the U-shaped frame 304 off the loading platform 25 through the abutment frame 306. The brake frame 305 on the U-shaped frame 25 can abut and rub against the protective rail 303, thereby slowing down the descent of the loading platform. As the connecting rod 307 gradually changes from an inclined state to a horizontal state, the locking rod 312 inside the locking block 311 can be driven outward by the push rod 313 on the connecting rod 307. When the connecting rod 307 is completely horizontal, the push rod 313 will also pull the locking rod 312 out completely, so that the top of the locking rod 312 abuts against the locking block 311, and the locking rod 312 and the push rod 313... The connection between them is made by a rotatable ball joint, allowing the angle change of the push rod 313 during outward movement to be adjusted by rotation. When the push rod 313 fully pulls out the locking rod 312, the two are no longer in a straight line, making it difficult for the push rod 313 to drive the locking rod 312 back to its original position. That is, the connecting rod 307 is not easy to change from a horizontal state to an inclined state. When the connecting rod 307 is in a horizontal state, its upper abutting push rod 309 abuts against the abutting rod 310 on the loading platform 25. After the connecting rod 307 drives the U-shaped frame 304 to move out, the rear brake frame 305 abuts against the protective rail 303, thus the connecting rod 307... 07 will not tilt from another direction, thus achieving the purpose of locking. A baffle can be installed below the connecting rod 307 so that it is not easy to tilt from the other side when it is in a near-horizontal state. When the connecting rod 307 becomes horizontal, the friction wheel 308 on it will also squeeze the protective steel rope 301. At this time, the deformation mechanism 302 at the top of the frame 1 can retract to a certain extent, so that the protective steel rope 301 can be stretched smoothly. The limiting rod 314 makes the abutting push rod 309 rotating on the connecting rod 307 maintain a certain vertical state, so as to facilitate its abutting collision with the abutting rod 310.

[0055] In one embodiment, please refer to Figure 8 The protective rail 303 is U-shaped, and the height of the side of the protective rail 303 away from the loading platform 25 is only half that of the other side.

[0056] By adopting the above technical solution, when the brake frame 305 comes into contact with the protective rail 303, it first rubs against one side. When the speed of the loading platform 25 is still relatively fast, it can come into contact with the other side of the protective rail 303, which further improves the braking effect on the loading platform 25. The bottom end of the friction point on the brake frame 305 that acts on the shorter side of the protective rail 303 should have a certain angle of inclination to facilitate friction with the protective rail 303.

[0057] In one embodiment, please refer to Figure 10 The deformation mechanism 302 includes a mounting base 3021, a movable base 3022, a rotating wheel 3023, a deformation limiting rod 3024, and a spring 3025. The mounting base 3021 is mounted on the top of the frame 1. The movable base 3022 is slidably engaged with the mounting base 3021 through the deformation limiting rod 3024. The rotating wheel 3023 is rotatably mounted on the movable base 3022. The protective steel rope 301 passes through the rotating wheel 3023. The spring 3025 is mounted on the mounting base 3021. The output end of the spring 3025 is connected to the movable base 3022.

[0058] By adopting the above technical solution, when the protective steel rope 301 is abutted and stretched by the friction wheel 308, the protective steel rope 301 can apply pressure to the rotating wheel 3023, causing it to drive the moving seat 3022 to press down. Through the guiding action of the deformation limit rod 3024 and the compression of the spring 3025, the moving seat 3022 can descend relative to the mounting seat 3021, and after the pressure of the protective steel rope 301 disappears, it can be supported and moved upward again by the spring 3025.

[0059] In one embodiment, please refer to Figure 8 The limiting mechanism 314 includes two mounting rings 3141, two mounting rings 3142, and a spring 3143. The two mounting rings 3141 are respectively mounted on both ends of the abutting push rod 309, and the two mounting rings 3142 are both mounted on the abutting rod 310. The two mounting rings 3142 are located on the upper and lower sides of the abutting push rod 309, and the corresponding mounting rings 3141 and the two mounting rings 3142 are connected by the spring 3143.

[0060] By adopting the above technical solution, the mounting ring 3142 on the abutting rod 310 and the mounting ring 3141 on the abutting push rod 309 are connected by the spring 3143, so that the abutting push rod 309 can maintain a certain vertical state and the connecting rod 307 can maintain an inclined state. When the connecting rod 307 becomes approximately horizontal, the tension of the spring 3143 is less than the friction between the friction wheel 308 and the protective steel rope 301 when the loading platform 25 descends, which is insufficient to make the connecting rod 307 tilt again.

[0061] In one embodiment, please refer to Figure 8The U-shaped frame 304 is provided with a through groove 3041. Several rollers 3042 and 3043 are rotatably installed on the loading platform 25. Both rollers 3042 and 3043 abut against the frame 1. Roller 3042 and abutment rod 310 pass through the through groove 3041.

[0062] By adopting the above technical solution, when the U-shaped frame 304 is slid out, the through groove 3041 ensures that the roller 3042 and the abutment rod 310 will not change position and can still abut against the frame 1. The roller 3042 and the roller 3043 reduce the sliding friction between the loading platform 25 and the frame 1. The abutment rod 310 should also be equipped with rollers and abut against the frame 1, thereby reducing the friction between the abutment rod 310 and the frame 1.

[0063] In one embodiment, please refer to Figure 2 , Figures 13 to 15 The lifting mechanism 2 also includes an electrical control cabinet 201, a terminal limit switch 202, and two floor selection and addressing plates 203. The electrical control cabinet 201 and the steel rope traction wheel 22 are installed on the same side of the frame 1. The terminal limit switch 202 is installed on the loading platform 25. The two floor selection and addressing plates 203 are respectively installed at the upper and lower ends of the frame 1. The terminal limit switch 202 and the two floor selection and addressing plates 203 are arranged in cooperation.

[0064] By adopting the above technical solution, the electrical control cabinet 201 is installed on the same side as the first rotary drive device 21 and the steel rope traction wheel 22, making the overall structure of the stacker crane more compact. Furthermore, the upper and lower layer selection and addressing plates 203 and the terminal limit switches 202 on the loading platform 25 work together to ensure that the lifting position of the loading platform 25 can be determined.

[0065] In one embodiment, please refer to Figure 15 The lifting mechanism 2 also includes a motor mounting plate 204, a motor inclined plate 205, and an L-shaped connecting plate 206. The motor mounting plate 204 is mounted on the frame 1, the motor inclined plate 205 is mounted on the motor mounting plate 204, the bottoms of the motor mounting plate 204 and the motor inclined plate 205 are connected by a crossbar, the L-shaped connecting plate 206 is mounted on the motor inclined plate 205, the first rotary drive device 21 is placed on the bottom plate of the L-shaped connecting plate 206 and connected to the side plate of the L-shaped connecting plate 206, and the steel rope traction wheel 22 is connected to the L-shaped connecting plate 206.

[0066] By adopting the above technical solution, the motor mounting plate 204, the motor inclined plate 205 and the crossbar at the bottom of the two form a triangle, thereby making the installation of the first rotary drive device 21 and the steel rope traction wheel 22 on the L-shaped plate 206 more stable.

[0067] In one embodiment, please refer to Figure 11 and Figure 12The bottom of the frame 1 is rotatably mounted with a drive wheel 101 and a driven wheel 102. The bottom of the frame 1 is also mounted with a second rotary drive device 103, which can be a servo motor. The second rotary drive device 103 is connected to the drive wheel 101 through a reduction gearbox. The output end of the second rotary drive device 103 is connected to the drive wheel 101. The second rotary drive device 103 is located below the electrical control cabinet 201. The front and rear ends of the frame 1 in the direction of travel are rotatably mounted with auxiliary wheels 104. The drive wheel 101, the driven wheel 102 and the auxiliary wheel 104 are all in contact with the ground rail 11.

[0068] By adopting the above technical solution, by installing the second rotary drive device 103 below the electrical control cabinet 201, the structure of the entire stacker crane is made more compact. The frame 1 is driven forward by the drive wheel 101 and the driven wheel 102, and the auxiliary wheel 104 provides assistance, making the frame 1 more stable when moving.

[0069] In one embodiment, please refer to Figure 11 and Figure 12 Cleaning brushes 105 are installed on the side of the auxiliary wheel 104 away from the frame 1.

[0070] By adopting the above technical solution, the cleaning brush 105 cleans the ground track 11, making the driving wheel 101, driven wheel 102 and auxiliary wheel 104 more stable when moving.

[0071] In one embodiment, please refer to Figure 5 The top of the frame 1 is equipped with auxiliary wheel 2 106, which abuts against the ceiling rail 12.

[0072] By adopting the above technical solution, the auxiliary wheel 106 rotates in contact with the overhead rail 12, making the frame 1 more stable when moving forward.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A single-column automatic lifting stacker, characterized in that, include: The frame (1) is slidably mounted on the ground rail (11) and the overhead rail (12); The lifting mechanism (2) includes a first rotary drive device (21), a steel rope traction wheel (22), an inlet wheel (23), an outlet wheel (24), a loading platform (25), a lifting wheel (26), a buffer frame (27), and two first linear actuators (28). The mounting ends of the first rotary drive device (21) and the steel rope traction wheel (22) are mounted on the frame (1). The output end of the first rotary drive device (21) is connected to the steel rope traction wheel (22) for transmission. Two inlet wheels (23) and two outlet wheels (24) are rotatably mounted on the top of the frame (1). The loading platform (25) is slidably engaged on the frame (1). The lifting wheel (26) is rotatably mounted on the loading platform (25). The buffer frame (27) is mounted on the frame (1). The two first linear actuators (28) are distributed and mounted at both ends of the ground rail (11). The fall protection mechanism (3) includes a protective steel rope (301), a deformation mechanism (302), a protective rail (303), a U-shaped frame (304), a brake frame (305), abutment frame (306), a connecting rod (307), a friction wheel (308), abutment push rod (309), abutment rod (310), a locking block (311), a locking rod (312), a top rod (313), and a limiting mechanism (314). The bottom end of the protective steel rope (301) is fixedly installed on the frame (1). The deformation mechanism (302) and the protective rail (303) are both installed on the frame (1). The top end of the protective steel rope (301) passes through the deformation mechanism (302). The U-shaped frame (304) is slidably locked onto the loading platform (25). The brake frame (305) and the abutment frame (306) are both installed on the U-shaped frame (304). The brake frame (305) and the abutment frame (306) are connected to the loading platform (25). The protective rail (303) is configured to cooperate with the connecting rod (307) which is rotatably mounted on the abutment frame (306). A friction wheel (308) is rotatably mounted on one end of the connecting rod (307). The friction wheel (308) abuts against the protective steel rope (301). An abutment push rod (309) is rotatably mounted on the end of the connecting rod (307) away from the friction wheel (308). The abutment rod (310) is mounted on the loading platform (25). The abutment push rod (309) and the abutment rod (310) are configured to cooperate with each other. A locking block (311) is mounted on the abutment frame (306). A locking rod (312) is slidably locked in the locking block (311). A top rod (313) is rotatably mounted on the bottom of the locking rod (312) through a universal ball. The end of the top rod (313) away from the locking rod (312) is mounted on the connecting rod (307). A limit mechanism (314) is mounted on the abutment rod (310).

2. The single-column automatic lifting stacker according to claim 1, characterized in that, The protective rail (303) is U-shaped, and the height of the side of the protective rail (303) away from the loading platform (25) is only half that of the other side.

3. The single-column automatic lifting stacker according to claim 1, characterized in that, The deformation mechanism (302) includes a mounting base (3021), a movable base (3022), a rotating wheel (3023), a deformation limiting rod (3024), and a spring (3025). The mounting base (3021) is mounted on the top of the frame (1). The movable base (3022) is slidably engaged with the mounting base (3021) through the deformation limiting rod (3024). The rotating wheel (3023) is rotatably mounted on the movable base (3022). The protective steel rope (301) passes through the rotating wheel (3023). The spring (3025) is mounted on the mounting base (3021). The output end of the spring (3025) is connected to the movable base (3022).

4. The single-column automatic lifting stacker according to claim 1, characterized in that, The limiting mechanism (314) includes two mounting rings (3141), two mounting rings (3142), and a spring (3143). The two mounting rings (3141) are respectively mounted on both ends of the abutting push rod (309), and the two mounting rings (3142) are mounted on the abutting rod (310). The two mounting rings (3142) are located on the upper and lower sides of the abutting push rod (309), and the corresponding mounting rings (3141) and the two mounting rings (3142) are connected by the spring (3143).

5. The single-column automatic lifting stacker according to claim 1, characterized in that, The U-shaped frame (304) is provided with a through groove (3041), and a number of rollers (3042) and rollers (3043) are rotatably installed on the loading platform (25). Rollers (3042) and rollers (3043) abut against the frame (1), and rollers (3042) and abutment rods (310) pass through the through groove (3041).

6. The single-column automatic lifting stacker according to claim 1, characterized in that, The lifting mechanism (2) also includes an electrical control cabinet (201), a terminal limit switch (202) and two floor selection and address plates (203). The electrical control cabinet (201) and the steel rope traction wheel (22) are installed on the same side of the frame (1). The terminal limit switch (202) is installed on the loading platform (25). The two floor selection and address plates (203) are installed at the upper and lower ends of the frame (1) respectively. The terminal limit switch (202) and the two floor selection and address plates (203) are set together.

7. The single-column automatic lifting stacker according to claim 1, characterized in that, The lifting mechanism (2) also includes a motor mounting plate (204), a motor inclined plate (205), and an L-shaped connecting plate (206). The motor mounting plate (204) is mounted on the frame (1), the motor inclined plate (205) is mounted on the motor mounting plate (204), the bottom of the motor mounting plate (204) and the motor inclined plate (205) are connected by a crossbar, the L-shaped connecting plate (206) is mounted on the motor inclined plate (205), the first rotary drive device (21) is placed on the bottom plate of the L-shaped connecting plate (206) and connected to the side plate of the L-shaped connecting plate (206), and the steel rope traction wheel (22) is connected to the L-shaped connecting plate (206).

8. The single-column automatic lifting stacker according to claim 6, characterized in that, The bottom of the frame (1) is rotatably mounted with a drive wheel (101) and a driven wheel (102). The bottom of the frame (1) is also mounted with a second rotary drive device (103). The output end of the second rotary drive device (103) is connected to the drive wheel (101) via a transmission. The second rotary drive device (103) is located below the electrical control cabinet (201). The front and rear ends of the frame (1) in the direction of travel are rotatably mounted with auxiliary wheels (104). The drive wheel (101), the driven wheel (102), and the auxiliary wheel (104) all abut against the ground rail (11).

9. The single-column automatic lifting stacker according to claim 8, characterized in that, Cleaning brushes (105) are installed on the side of the auxiliary wheel (104) away from the frame (1).

10. The single-column automatic lifting stacker according to claim 1, characterized in that, The top of the frame (1) is equipped with auxiliary wheel 2 (106), which abuts against the ceiling rail (12).

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