An overweight stacker load platform braking device

Abstract

The present invention relates to the technical field of warehousing logistics, and specifically relates to a braking device for the load platform of an overweight stacker, which includes a load platform main body. Moving pulleys are provided at both ends of the load platform main body. Two groups of safety lifting components and two groups of safety braking components are fixedly connected to the load platform main body, and the two groups of safety lifting components and the two groups of safety braking components are respectively arranged at both ends of the load platform main body. Through the precise linkage of the safety lifting and safety braking components, this device can quickly trigger braking when the rope of the moving pulley on one side of the load platform main body is slackened, ensuring that the two sides of the braking components are started synchronously, effectively preventing tilting and out-of-control, greatly improving the safety of goods handling. At the same time, by cooperating with an external speed limiter through a driven connecting rod, it can immediately trigger braking when the load platform main body descends at an excessive speed, forming a double insurance. Whether the rope is slackened or the speed is lost, it can ensure that the load platform main body stops quickly and stably, effectively avoiding accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of warehousing logistics, and specifically to a braking device for the load platform of an overweight stacker crane. Background Art

[0002] A stacker crane is a special crane widely used in places such as warehouses and workshops, mainly for the handling and stacking of goods. Since today's enterprise warehouses are generally very high, some goods storage cannot be achieved through manual operation, while the stacker crane can lift goods to a height of centimeter level through the load platform, greatly improving the storage space and utilization rate of goods in the warehouse. And goods are generally stored in the form of pallets or boxes in the warehouse, and the load platform on the stacker crane can carry these goods and lift them to the required height.

[0003] The stacker crane is the core equipment of the automated warehousing system, and the load platform is an important part of the stacker crane. The safe operation of its load platform is of great significance for ensuring personnel safety, protecting the integrity of goods, improving work efficiency, etc. In the logistics industry, the demand for high-load stacker cranes is increasing continuously, and the total weight of goods loaded on the load platform is often more than 20 tons. However, the safety clamps on the current market cannot provide such a large locking force;

[0004] In addition, there are many problems with traditional braking devices. On the one hand, the linkage devices on both sides of the load platform are complex and the structure is bulky. On the other hand, its braking effect is usually not good, and generally it can only be used in cooperation with a speed limiter, and the braking effect will only be generated when the descending speed of the load platform exceeds a certain value, and the braking is not timely, there are relatively large potential safety hazards.

[0005] Therefore, the technical personnel in this field provide a braking device for the load platform of an overweight stacker crane to solve the problems raised in the above background art. Summary of the Invention

[0006] The purpose of the present invention is to provide a braking device for the load platform of an overweight stacker crane to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An overweight stacker load platform braking device, including a load platform main body, both ends of the load platform main body are provided with movable pulleys, two groups of safety lifting components and two groups of safety braking components are fixedly connected to the load platform main body, the two groups of safety lifting components and the two groups of safety braking components are respectively arranged at both ends of the load platform main body, the safety lifting component and the safety braking component on the same side are arranged perpendicular to each other, and a plurality of guide wheel bodies are also fixedly connected to the load platform main body, two groups of steel wire ropes are drivingly connected to the plurality of guide wheel bodies, and both ends of the two groups of steel wire ropes are respectively connected to the safety lifting components at both ends of the load platform main body.

[0009] Preferably: The safety lifting component includes a bottom plate, the bottom plate is fixedly connected to the load platform main body, a reverse pulley is installed between the bottom plate and the load platform main body, a lifting rope is wound around the reverse pulley, and the lifting rope is drivingly connected to the movable pulley on the load platform main body;

[0010] One end of the bottom plate close to the safety braking component is hinged with a driving connecting rod, the end of the driving connecting rod away from the bottom plate is hinged with a connecting rod, the other end of the driving connecting rod passes through the bottom plate and is connected to the movable pulley on the load platform main body, the bottom of the connecting rod is fixedly connected with a safety clamp lifting head, and the end of the safety clamp lifting head away from the connecting rod is fixed to the safety braking component.

[0011] Preferably: The end of the bottom plate away from the safety braking component is also hinged with a driven connecting rod, and the driven connecting rod is connected to the speed limiter outside the load platform main body, and the end of the driven connecting rod away from the bottom plate is fixedly connected with a shackle;

[0012] Both ends of one of the steel wire ropes are respectively connected to the driving connecting rod and the driven connecting rod at both ends of the load platform main body, and a plurality of wire rope clips are clamped on the two steel wire ropes.

[0013] Preferably: A middle connecting plate is fixedly connected between the driving connecting rod and the driven connecting rod, and the driving connecting rod and the driven connecting rod are connected through the middle connecting plate.

[0014] Preferably: The safety braking component includes a safety clamp connecting seat and a safety clamp seat, the safety clamp connecting seat is fixedly connected to the load platform main body, the safety clamp seat is connected to the safety clamp connecting seat through a plurality of bolts, and the safety clamp seat can float left and right on the safety clamp connecting seat, a compression spring is fixedly connected to the top of the safety clamp seat, and the end of the compression spring close to the load platform main body abuts against the load platform main body, an instantaneous safety clamp is also fixedly connected to the safety clamp seat, a braking wheel is slidably connected in the instantaneous safety clamp, the bottom end of the safety clamp lifting head is fixedly connected with a lifting rod through a bolt, and one end of the lifting rod is fixed to the braking wheel, and the other end of the lifting rod is hinged to the safety clamp seat;

[0015] Two sets of guide wheels are also installed on the safety clamp seat, and the two sets of guide wheels are respectively located at both ends of the instantaneous safety clamp.

[0016] Preferably: A cooling component is further arranged inside the instantaneous safety clamp. A cold water tank connected to the cooling component is fixedly connected to the safety clamp seat. An adjustment groove is formed in the instantaneous safety clamp. A pressing plate is hinged in the adjustment groove. One end of the pressing plate penetrates and extends into the instantaneous safety clamp, and the extended end of the pressing plate abuts against the cooling component.

[0017] On one side of the safety clamp seat close to the instantaneous safety clamp, a plurality of spraying ports are further formed, and the plurality of spraying ports are all located directly above the instantaneous safety clamp. The water inlet ends of the plurality of spraying ports are all connected to the cooling component.

[0018] Preferably: The cooling component includes a first connecting pipe and a second connecting pipe. The second connecting pipe is slidably connected to the first connecting pipe and is communicated with the first connecting pipe. The bottom of the first connecting pipe is connected to the cold water tank on the safety clamp seat.

[0019] A communication groove is formed inside the second connecting pipe. The second connecting pipe is communicated with the first connecting pipe through the communication groove. A connecting head is connected to the top of the second connecting pipe and is communicated with the communication groove. One end of the connecting head away from the second connecting pipe is connected to a plurality of spraying ports.

[0020] Preferably: Two sealing balls for restricting water flow are also slidably clamped in the communication groove. One of the sealing balls is arranged at one end of the second connecting pipe close to the first connecting pipe, and the other sealing ball is arranged at one end close to the connecting head.

[0021] Preferably: The cooling component further includes two sliding plates. The two sliding plates are both fixedly connected to the inside of the instantaneous safety clamp. Two sliding plates are fixedly connected to the outer wall of the second connecting pipe close to the bottom end, and the two sliding plates are respectively slidably connected to adjacent limiting sliding rods. An abutting plate adapted to the pressing plate is also fixedly connected to the outer wall of the second connecting pipe.

[0022] A return spring is further fixedly connected to the bottom of the second connecting pipe, and the return spring is sleeved on the outside of the first connecting pipe. The other end of the return spring is fixed to the inner wall of the instantaneous safety clamp.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Through the settings of the safety lifting component and the safety braking component, the present invention can achieve the safety braking effect of the main body of the load platform of the overweight stacker. The two braking devices on the left and right can meet the working conditions with a maximum weight of 60T for the main body of the load platform plus the goods. When the stacker encounters the situation of loose rope of the movable pulley on one side of the main body of the load platform during operation, through a precise mechanical linkage mechanism, the braking action can be quickly triggered. The ingenious cooperation between the active connecting rod and the driven connecting rod ensures that the safety braking components on both sides can be started simultaneously, effectively avoiding the inclination and out-of-control of the main body of the load platform, thus greatly improving the safety of goods handling.

[0025] 2. Through the setting of the speed limiter, the present invention enables the braking mechanism to be immediately triggered when the descending speed of the main body of the load platform exceeds the preset safety value. Through the dual-insurance design of the speed limiter and the safety braking component, the stability and reliability of the stacker under complex working conditions are further enhanced. Whether in the case of loose rope or stall, it can ensure that the main body of the load platform stops moving quickly and stably, effectively preventing accidents.

[0026] 3. When in use, through the set cooling component, the present invention realizes the real-time cooling of the braking area. When the brake wheel slides in the instantaneous safety clamp, it will push the pressing plate to flip, thereby triggering the flow of the coolant. The coolant is evenly sprayed on the brake wheel and the instantaneous safety clamp through multiple spraying ports, effectively reducing the heat generated by friction and ensuring the continuous stability of the braking effect. When the braking action is completed, the brake wheel resets, and the pressing plate also flips and resets accordingly. Under the action of the return spring, the second connecting pipe moves up and resets, and at the same time, the sealing ball reseals the communication groove. This design not only simplifies the operation process but also improves the overall stability and durability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the first perspective schematic diagram of the present invention;

[0028] Figure 2 is the structural schematic diagram of the safety lifting component, the safety braking component and the guide wheel main body in the present invention;

[0029] Figure 3 is the structural schematic diagram of the safety lifting component and the safety braking component in the present invention;

[0030] Figure 4 is the top view schematic of the upper part of the safety lifting component in the present invention Figure 1 ;

[0031] Figure 5 is the top view schematic of the upper part of the safety lifting component in the present invention Figure 2 ;

[0032] Figure 6 is in the present inventionFigure 3 Enlarged schematic view of the structure at position A above

[0033] Figure 7 Top view schematic of the safety lifting component in the present invention

[0034] Figure 8 Structure schematic of the safety clamp seat in the present invention

[0035] Figure 9 Structure schematic of the instantaneous safety clamp in the present invention

[0036] Figure 10 Structure schematic of the temperature reduction component in the present invention

[0037] Figure 11 Cross-sectional view schematic of the temperature reduction component in the present invention

[0038] In the figure: 1, main body of the cargo platform; 2, safety lifting component; 21, bottom plate; 22, back rope pulley; 23, active connecting rod; 24, safety clamp lifting head; 25, connecting rod; 26, driven connecting rod; 27, thimble; 28, intermediate connecting plate; 3, safety braking component; 31, safety clamp connecting seat; 32, safety clamp seat; 33, instantaneous safety clamp; 34, compression spring; 35, lifting rod; 36, brake wheel; 37, spraying port; 38, adjusting groove; 39, pressing plate; 4, main body of the guiding wheel; 41, steel wire rope; 5, wire rope clip; 6, temperature reduction component; 61, first connecting pipe; 62, second connecting pipe; 63, sliding plate; 64, limiting slide bar; 65, return spring; 66, abutting plate; 67, connecting head; 68, communicating groove; 69, sealing ball; 7, guiding wheel. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] Example 1, please refer to Figures 1-11, an overweight stacker load platform braking device, comprising a load platform main body 1, with movable pulleys provided at both ends of the load platform main body 1. Two groups of safety lifting components 2 and two groups of safety braking components 3 are fixedly connected to the load platform main body 1. The two groups of safety lifting components 2 and the two groups of safety braking components 3 are respectively arranged at both ends of the load platform main body 1. The safety lifting component 2 and the safety braking component 3 on the same side are arranged perpendicular to each other. A plurality of guide wheel bodies 4 are also fixedly connected to the load platform main body 1. Two groups of steel wire ropes 41 are drivingly connected to the plurality of guide wheel bodies 4. The two ends of the two groups of steel wire ropes 41 are respectively connected to the safety lifting components 2 at both ends of the load platform main body 1. The safety lifting component 2 includes a bottom plate 21, and the bottom plate 21 is fixedly connected to the load platform main body 1. A back rope wheel 22 is installed between the bottom plate 21 and the load platform main body 1. A lifting rope is wound around the back rope wheel 22, and the lifting rope is drivingly connected to the movable pulley on the load platform main body 1. One end of the bottom plate 21 close to the safety braking component 3 is hinged with a main connecting rod 23. The end of the main connecting rod 23 far from the bottom plate 21 is hinged with a connecting rod 25. The other end of the main connecting rod 23 passes through the bottom plate 21 and is connected to the movable pulley on the load platform main body 1. A safety clamp lifting head 24 is fixedly connected to the bottom of the connecting rod 25. The end of the safety clamp lifting head 24 far from the connecting rod 25 is fixed to the safety braking component 3. The other end of the bottom plate 21 far from the safety braking component 3 is also hinged with a driven connecting rod 26, and the driven connecting rod 26 is connected to a speed limiter outside the load platform main body 1. A heart-shaped ring 27 is fixedly connected to the end of the driven connecting rod 26 far from the bottom plate 21. The two ends of one of the steel wire ropes 41 are respectively connected to the main connecting rod 23 and the driven connecting rod 26 at both ends of the load platform main body 1. A plurality of wire rope clips 5 are clamped on the two steel wire ropes 41. An intermediate connecting plate 28 is fixedly connected between the main connecting rod 23 and the driven connecting rod 26. The main connecting rod 23 and the driven connecting rod 26 are connected through the intermediate connecting plate 28;

[0042] When the stacker is running, the back rope wheel 22 starts to drive the load platform main body 1 to move along the stacker column through the lifting rope to perform the work of storing and retrieving goods. When the wire rope of the movable pulley on one side of the load platform main body 1 becomes loose, the movable pulley on this side moves downward. When the movable pulley moves downward, it pulls the main connecting rod 23, causing the end of the main connecting rod 23 close to the movable pulley to move downward. Since the main connecting rod 23 is hinged to the bottom plate 21, when one side of the main connecting rod 23 moves downward, the other end moves upward. The upward moving end of the main connecting rod 23 pulls the safety clamp lifting head 24 upward through the connecting rod 25, causing the safety clamp lifting head 24 to drive the safety braking component 3 to start, so that the safety braking component 3 on this side drives the load platform main body 1 to brake and the load platform main body 1 stops;

[0043] Meanwhile, when the active connecting rod 23 moves downward, the driven connecting rod 26 is simultaneously pulled downward through the intermediate connecting plate 28. The driven connecting rod 26 drives the active connecting rod 23 on the other side of the main body 1 of the loading platform to move through the steel wire rope 41, so that the active connecting rods 23 on both sides simultaneously drive the safety braking components 3 on both sides to brake, enabling the main body 1 of the loading platform to stop quickly and stably and preventing the main body 1 of the loading platform from tilting;

[0044] Meanwhile, when the main body 1 of the loading platform descends overspeed, the speed limiter drives the driven connecting rod 26 on one side to move. The driven connecting rod 26 drives the active connecting rod 23 to move through the intermediate connecting plate 28, so that the instantaneous safety clamp 33 on this side brakes. At the same time, the driven connecting rod 26 on this side drives the active connecting rod 23 on the other side to move through the steel wire rope 41, causing the instantaneous safety clamp 33 on the other side to also brake, enabling the main body 1 of the loading platform to achieve a braking effect in both cases of loose rope and stall.

[0045] Embodiment 2, please refer to Figures 1-11 , the safety braking component 3 includes a safety clamp connecting seat 31 and a safety clamp seat 32. The safety clamp connecting seat 31 is fixedly connected to the main body 1 of the loading platform. The safety clamp seat 32 is connected to the safety clamp connecting seat 31 through a plurality of bolts, and the safety clamp seat 32 can float left and right on the safety clamp connecting seat 31. A compression spring 34 is fixedly connected to the top of the safety clamp seat 32, and one end of the compression spring 34 close to the main body 1 of the loading platform abuts against the main body 1 of the loading platform. An instantaneous safety clamp 33 is also fixedly connected to the safety clamp seat 32. A braking wheel 36 is slidably connected in the instantaneous safety clamp 33. The bottom end of the safety clamp lifting head 24 is fixedly connected to a lifting rod 35 through a bolt, and one end of the lifting rod 35 is fixed to the braking wheel 36. The other end of the lifting rod 35 is hinged to the safety clamp seat 32. Two groups of guide wheels 7 are also installed on the safety clamp seat 32, and the two groups of guide wheels 7 are respectively located at both ends of the instantaneous safety clamp 33. A temperature reduction component 6 is also arranged inside the instantaneous safety clamp 33. A cold water tank communicated with the temperature reduction component 6 is fixedly connected to the safety clamp seat 32. An adjustment groove 38 is formed in the instantaneous safety clamp 33. A pressing plate 39 is hinged in the adjustment groove 38. One end of the pressing plate 39 penetrates and extends into the instantaneous safety clamp 33, and the extended end of the pressing plate 39 abuts against the temperature reduction component 6. A plurality of spraying ports 37 are also formed on one side of the safety clamp seat 32 close to the instantaneous safety clamp 33, and the plurality of spraying ports 37 are all located directly above the instantaneous safety clamp 33. The water inlet ends of the plurality of spraying ports 37 are all communicated with the temperature reduction component 6;

[0046] When two active link rods 23 pull the safety clamp lifting head 24 to move upward through the connecting rod 25, the safety clamp lifting head 24 simultaneously pulls the adjacent lifting rod 35, causing the lifting rod 35 to drive the brake wheel 36 to flip upward. When the brake wheel 36 moves upward, it gradually pushes against the instantaneous safety clamp 33, causing the instantaneous safety clamp 33 to drive the safety clamp seat 32 to slide on the safety clamp connecting seat 31 in the direction close to the bottom plate 21. At the same time, the brake wheel 36 abuts against the inner wall of the instantaneous safety clamp 33, braking the instantaneous safety clamp 33 and fixing the main body 1 of the loading platform.

[0047] One end of the compression spring 34 abuts against the main body 1 of the loading platform, providing a reverse force to make the guide wheel 7 abut against the column guide rail of the stacker. At the same time, the safety clamp seat 32 and the instantaneous safety clamp 33 can float left and right on the safety clamp connecting seat 31 to ensure the braking effect of the instantaneous safety clamp 33.

[0048] When the brake wheel 36 slides upward in the instantaneous safety clamp 33, it simultaneously pushes the pressing plate 39 to flip around the adjustment slot 38, causing the other end of the pressing plate 39 to move downward and squeeze the cooling component 6. When the instantaneous safety clamp 33 contacts the inner wall of the brake wheel 36, the cooling component 6 is simultaneously activated to spray cold water between the instantaneous safety clamp 33 and the brake wheel 36 to cool the contact area between the instantaneous safety clamp 33 and the brake wheel 36, preventing excessive heat generated by the friction between the instantaneous safety clamp 33 and the brake wheel 36 from damaging the instantaneous safety clamp 33 or the brake wheel 36.

[0049] Embodiment 3, please refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 11, the temperature reduction component 6 includes a first connecting pipe 61 and a second connecting pipe 62. The second connecting pipe 62 is slidably connected to the first connecting pipe 61 and is in communication with the first connecting pipe 61. The bottom of the first connecting pipe 61 is in communication with a cold water tank on the safety clamp seat 32. A communication groove 68 is formed inside the second connecting pipe 62, and the second connecting pipe 62 is in communication with the first connecting pipe 61 through the communication groove 68. A connecting head 67 is connected to the top of the second connecting pipe 62, and the connecting head 67 is in communication with the communication groove 68. One end of the connecting head 67 away from the second connecting pipe 62 is in communication with a plurality of spraying ports 37. Two sealing balls 69 for restricting water flow are also slidably clamped in the communication groove 68. One of the sealing balls 69 is arranged at one end of the second connecting pipe 62 close to the first connecting pipe 61, and the other sealing ball 69 is arranged at one end close to the connecting head 67. The temperature reduction component 6 further includes two sliding plates 63. Both of the two sliding plates 63 are fixedly connected to the inside of the instantaneous safety clamp 33. Two sliding plates 63 are fixedly connected to the outer wall of the second connecting pipe 62 close to the bottom end, and the two sliding plates 63 are respectively slidably connected to adjacent limiting sliding rods 64. An abutting plate 66 adapted to the pressing plate 39 is also fixedly connected to the outer wall of the second connecting pipe 62. A return spring 65 is fixedly connected to the bottom of the second connecting pipe 62, and the return spring 65 is sleeved on the outside of the first connecting pipe 61. The other end of the return spring 65 is fixed to the inner wall of the instantaneous safety clamp 33;

[0050] When the brake wheel 36 pushes the pressing plate 39 to flip, the end of the pressing plate 39 located inside the instantaneous safety clamp 33 moves downward and pushes the abutting plate 66. The abutting plate 66 drives the second connecting pipe 62 to move downward along the first connecting pipe 61, so that the return spring 65 is compressed. When the second connecting pipe 62 moves downward, the pressure in the communication groove 68 increases and squeezes the two sealing balls 69. In the initial state, both of the two sealing balls 69 are in contact with the inner wall of the communication groove 68 and block the communication groove 68. When the pressure in the communication groove 68 increases, it drives the two sealing balls 69 to move upward in the communication groove 68, so that the coolant in the first connecting pipe 61 can enter the second connecting pipe 62 through the communication groove 68. At the same time, the original coolant in the communication groove 68 continues to move upward under the action of the pressure and is pumped to the spraying ports 37 through the connecting head 67 and sprayed out through the plurality of spraying ports 37 to cool the instantaneous safety clamp 33 and the brake wheel 36;

[0051] When the brake wheel 36 is reset, the brake wheel 36 no longer pushes the pressing plate 39. The second connecting pipe 62 moves upward and resets under the action of the return force of the return spring 65, and the abutting plate 66 moves upward at the same time to push the pressing plate 39 to flip and reset;

[0052] When the second connecting pipe 62 moves upward, the two sealing balls 69 fall under the action of gravity and close the communication groove 68 again to restore to the original position;

[0053] Meanwhile, through the provided sliding plate 63 and limiting sliding rod 64, when the second connecting pipe 62 slides up and down, the sliding plate 63 and the limiting sliding rod 64 can assist the sliding of the second connecting pipe 62, making the second connecting pipe 62 more stable.

[0054] The working principle of the present invention is as follows:

[0055] When the stacker operates, the back rope pulley 22 starts to drive the main body 1 of the load platform to move along the stacker column through the lifting rope for the storage and retrieval of goods. When the rope of one of the movable pulleys on the main body 1 of the load platform becomes loose, the movable pulley on this side moves downward. When the movable pulley moves downward, it pulls one end of the active connecting rod 23 downward. The other end of the active connecting rod 23 moves upward and pulls the safety clamp lifting head 24 upward through the connecting rod 25, causing the safety clamp lifting head 24 to drive the lifting rod 35 to move. The lifting rod 35 drives the brake wheel 36 to flip upward, braking the instantaneous safety clamp 33 on this side and driving the main body 1 of the load platform to stop;

[0056] Meanwhile, when the active connecting rod 23 moves downward, it simultaneously pulls the driven connecting rod 26 downward through the intermediate connecting plate 28. The driven connecting rod 26 drives the active connecting rod 23 on the other side of the main body 1 of the load platform to move through the steel wire rope 41, causing the active connecting rods 23 on both sides to simultaneously drive the safety braking components 3 on both sides to brake, enabling the main body 1 of the load platform to stop quickly and stably and preventing the main body 1 of the load platform from tilting;

[0057] Meanwhile, when the main body 1 of the load platform descends at an excessive speed, the speed limiter drives the driven connecting rod 26 on one side to move. The driven connecting rod 26 drives the active connecting rod 23 to move through the intermediate connecting plate 28, braking the instantaneous safety clamp 33 on this side. Meanwhile, the driven connecting rod 26 on this side simultaneously drives the active connecting rod 23 on the other side to move through the steel wire rope 41, causing the instantaneous safety clamp 33 on the other side to also brake, enabling the main body 1 of the load platform to achieve a braking effect in both cases of loose rope and stall;

[0058] When the brake wheel 36 slides upward in the instantaneous safety clamp 33, it simultaneously pushes the pressing plate 39 to flip around the adjustment groove 38. The pressing plate 39 pushes the abutting plate 66 downward. The abutting plate 66 drives the second connecting pipe 62 to move downward along the first connecting pipe 61, compressing the return spring 65. When the second connecting pipe 62 moves downward, the pressure in the communication groove 68 increases and squeezes the two sealing balls 69. In the initial state, both sealing balls 69 are in contact with the inner wall of the communication groove 68 and block the communication groove 68. When the pressure in the communication groove 68 increases, it drives the two sealing balls 69 to move upward in the communication groove 68, enabling the coolant in the first connecting pipe 61 to enter the second connecting pipe 62 through the communication groove 68. Meanwhile, the original coolant in the communication groove 68 continues to move upward under the action of the pressure and is pumped to the spraying port 37 through the connecting head 67 and sprayed out through multiple spraying ports 37 to cool the instantaneous safety clamp 33 and the brake wheel 36;

[0059] After the brake wheel 36 is reset, the brake wheel 36 no longer pushes against the pressing plate 39. Under the action of the restoring force of the reset spring 65, the second communication pipe 62 moves upward and resets, and the abutting plate 66 moves upward at the same time to push the pressing plate 39 to flip and reset;

[0060] When the second communication pipe 62 moves upward, the two sealing balls 69 fall under the action of gravity and close the communication groove 68 again, returning to the original position.

[0061] It should be noted that each device in this application is a common device in the market and can be selected according to needs during specific use. Moreover, the circuit connection relationships of each device all belong to simple series and parallel connection circuits, and there are no innovation points in the circuit connection part. Those skilled in the art can easily implement it, which belongs to the prior art and will not be elaborated here.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A braking device for a cargo platform of an overweight stacker, comprising a cargo platform body (1), wherein both ends of the cargo platform body (1) are provided with movable pulleys, and characterized in that: The cargo platform body (1) is fixedly connected with two groups of safety lifting components (2) and two groups of safety brake components (3), the two groups of safety lifting components (2) and the two groups of safety brake components (3) are respectively arranged at two ends of the cargo platform body (1), and the safety lifting components (2) and the safety brake components (3) located on the same side are arranged perpendicular to each other. The cargo platform body (1) is also fixedly connected with a plurality of guide wheel bodies (4), and the plurality of guide wheel bodies (4) are transmission-connected with two groups of steel wire ropes (41), and the two ends of the two groups of steel wire ropes (41) are respectively connected to the safety lifting components (2) at the two ends of the cargo platform body (1); The safety lifting assembly (2) comprises a bottom plate (21), the bottom plate (21) being fixedly connected to the cargo platform body (1), a deflecting pulley (22) being installed between the bottom plate (21) and the cargo platform body (1), a lifting rope being wound around the deflecting pulley (22), and the lifting rope being drivingly connected to a movable pulley on the cargo platform body (1); An active connecting rod (23) is hingedly connected to one end of the base plate (21) close to the safety brake assembly (3); an end of the active connecting rod (23) away from the base plate (21) is hingedly connected to a connecting rod (25); the other end of the active connecting rod (23) passes through the base plate (21) and is connected to a movable pulley on the cargo platform body (1); a safety clamp lifting head (24) is fixedly connected to the bottom of the connecting rod (25); and an end of the safety clamp lifting head (24) away from the connecting rod (25) is fixed to the safety brake assembly (3); The end of the bottom plate (21) away from the safety brake assembly (3) is also hingedly connected to a driven connecting rod (26), and the driven connecting rod (26) is connected to a speed limiter outside the cargo platform body (1), and the end of the driven connecting rod (26) away from the bottom plate (21) is fixedly connected to a heart ring (27); Two ends of one of the steel wire ropes (41) are respectively connected to an active connecting rod (23) and a driven connecting rod (26) at two ends of the cargo platform body (1), and a plurality of rope clamps (5) are clamped on both of the steel wire ropes (41).

2. The overweight stacker cargo platform braking device according to claim 1, characterized in that: An intermediate connecting plate (28) is fixedly connected between the active connecting rod (23) and the driven connecting rod (26); the active connecting rod (23) and the driven connecting rod (26) are connected via the intermediate connecting plate (28).

3. The braking device for the cargo platform of an overweight stacker according to claim 2, characterized in that: The safety brake assembly (3) comprises a safety clamp connection seat (31) and a safety clamp seat (32), wherein the safety clamp connection seat (31) is fixedly connected to the cargo platform body (1), the safety clamp seat (32) is connected to the safety clamp connection seat (31) by a plurality of bolts, and the safety clamp seat (32) can float left and right on the safety clamp connection seat (31), the top of the safety clamp seat (32) is fixedly connected to a compression spring (34), and one end of the compression spring (34) close to the cargo platform body (1) abuts against the cargo platform body (1), the safety clamp seat (32) is also fixedly connected to an instantaneous safety clamp (33), a brake wheel (36) is slidably connected to the instantaneous safety clamp (33), the bottom end of the safety clamp lifting head (24) is fixedly connected to a lifting rod (35) by bolts, and one end of the lifting rod (35) is fixed to the brake wheel (36), and the other end of the lifting rod (35) is hinged to the safety clamp seat (32); Two sets of guide wheels (7) are also installed on the safety clamp seat (32), and the two sets of guide wheels (7) are respectively located at two ends of the instantaneous safety clamp (33).

4. The braking device for the cargo platform of an overweight stacker according to claim 3, characterized in that: A cooling component (6) is also provided inside the instantaneous safety clamp (33); a cold water tank connected to the cooling component (6) is fixedly connected to the safety clamp seat (32); an adjustment groove (38) is provided on the instantaneous safety clamp (33); a pressing plate (39) is hinged in the adjustment groove (38); one end of the pressing plate (39) penetrates and extends into the instantaneous safety clamp (33), and the extended end of the pressing plate (39) abuts against the cooling component (6); A plurality of spraying ports (37) are also provided on a side of the safety clamp seat (32) close to the instantaneous safety clamp (33), and the plurality of spraying ports (37) are all located directly above the instantaneous safety clamp (33), and the water inlet ends of the plurality of spraying ports (37) are all connected to the cooling component (6).

5. The braking device for the cargo platform of an overweight stacker according to claim 4, characterized in that: The cooling assembly (6) comprises a first connecting pipe (61) and a second connecting pipe (62), the second connecting pipe (62) being slidably connected to the first connecting pipe (61), and the second connecting pipe (62) being in communication with the first connecting pipe (61), and the bottom of the first connecting pipe (61) being in communication with a cold water tank on the safety clamp seat (32); A connecting groove (68) is provided inside the second connecting tube (62), and the second connecting tube (62) is connected to the first connecting tube (61) through the connecting groove (68). A connecting head (67) is connected to the top of the second connecting tube (62), and the connecting head (67) is connected to the connecting groove (68). An end of the connecting head (67) away from the second connecting tube (62) is connected to a plurality of spraying ports (37).

6. The braking device for the cargo platform of an overweight stacker according to claim 5, characterized in that: Two sealing balls (69) for limiting water flow are also slidably engaged in the connecting groove (68), wherein one of the sealing balls (69) is arranged in the second connecting tube (62) at one end close to the first connecting tube (61), and the other sealing ball (69) is arranged at one end close to the connecting head (67).

7. The braking device for the cargo platform of an overweight stacker according to claim 6, characterized in that: The cooling component (6) further comprises two sliding plates (63), the two sliding plates (63) are both fixedly connected to the interior of the instantaneous safety clamp (33), the outer wall of the second connecting pipe (62) close to the bottom end is fixedly connected to the two sliding plates (63), and the two sliding plates (63) are respectively slidably connected to adjacent limiting sliding rods (64), and the outer wall of the second connecting pipe (62) is also fixedly connected to an abutting plate (66) adapted to the pressing plate (39); A return spring (65) is also fixedly connected to the bottom of the second connecting pipe (62), and the return spring (65) is sleeved on the outside of the first connecting pipe (61), and the other end of the return spring (65) is fixed to the inner wall of the instantaneous safety clamp (33).

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