Braking device for cargo carrying platform of overweight stacker

Abstract

The invention relates to the technical field of warehouse logistics, in particular to an overweight stacker cargo carrying table braking device which comprises a cargo carrying table body, movable pulleys are arranged at the two ends of the cargo carrying table body, and two sets of safety lifting assemblies and two sets of safety braking assemblies are fixedly connected to the cargo carrying table body. The two sets of safety lifting assemblies and the two sets of safety braking assemblies are arranged at the two ends of the cargo carrying table body correspondingly. According to the device, through precise linkage of safe lifting and safe braking assemblies, braking can be rapidly triggered when a movable pulley on one side of the cargo carrying table body loosens a rope, it is ensured that the braking assemblies on the two sides are synchronously started, inclination and out-of-control are effectively prevented, and the cargo carrying safety is greatly improved; braking can be triggered immediately when the cargo carrying platform body descends at overspeed, double insurance is formed, it can be guaranteed that the cargo carrying platform body stops rapidly and stably no matter whether a rope loosens or stalls, and accidents are effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of warehousing logistics, and in particular to a braking device for a cargo platform of an overweight stacker. Background Art

[0002] A stacker is a special crane widely used in warehouses, workshops and other places. It is mainly used for the transportation and stacking of goods. Since today's corporate warehouses are generally very high, some goods cannot be stored manually. The stacker can lift the goods to a height of centimeters through the loading platform, which greatly improves the warehouse's cargo storage space and utilization rate. Goods in warehouses are generally stored in the form of pallets or boxes. The loading platform on the stacker can carry these goods and lift them to the required height.

[0003] Stackers are the core equipment of automated warehousing systems, and cargo platforms are an important part of stackers. The safe operation of cargo platforms is of great significance for ensuring personnel safety, protecting cargo integrity, and improving work efficiency. In the logistics industry, the demand for high-load stackers is growing. The total weight of cargo loading platforms is often more than 20 tons, but the safety clamps currently on the market cannot provide such a large locking force. In addition, traditional braking devices still have many problems. On the one hand, the linkage devices on both sides of the cargo platform are complex and bulky. On the other hand, their braking effect is usually not good, and they can generally only be used in conjunction with a speed limiter. The braking effect will only be produced when the cargo platform descends at a speed exceeding a certain value. If the braking is not timely, there will be a major safety hazard.

[0004] Therefore, those skilled in the art provide a braking device for an overweight stacker loading platform to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a braking device for an overweight stacker loading platform to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A braking device for an overweight stacker's cargo platform comprises a cargo platform main body, movable pulleys are arranged at both ends of the cargo platform main body, two groups of safety lifting assemblies and two groups of safety braking assemblies are fixedly connected to the cargo platform main body, the two groups of safety lifting assemblies and the two groups of safety braking assemblies are respectively arranged at the two ends of the cargo platform main body, and the safety lifting assemblies and safety braking assemblies located on the same side are arranged perpendicular to each other, a plurality of guide wheel main bodies are also fixedly connected to the cargo platform main body, two groups of steel ropes are transmission-connected to the plurality of guide wheel main bodies, and the two ends of the two groups of steel ropes are respectively connected to the safety lifting assemblies at the two ends of the cargo platform main body.

[0007] Preferably, the safety lifting assembly comprises a bottom plate, the bottom plate is fixedly connected to the cargo platform body, a reverse rope wheel is installed between the bottom plate and the cargo platform body, a lifting rope is wound around the reverse rope wheel, and the lifting rope is drivingly connected to a movable pulley on the cargo platform body; An active connecting rod is hinged on one end of the base plate close to the safety brake assembly, and a connecting rod is hinged on the end of the active connecting rod away from the base plate. The other end of the active connecting rod passes through the base plate and is connected to a movable pulley on the cargo platform body. A safety clamp lifting head is fixedly connected to the bottom of the connecting rod, and the end of the safety clamp lifting head away from the connecting rod is fixed to the safety brake assembly.

[0008] Preferably: a driven connecting rod is hingedly connected to one end of the bottom plate away from the safety brake assembly, and the driven connecting rod is connected to the speed limiter outside the cargo platform body, and a heart ring is fixedly connected to one end of the driven connecting rod away from the bottom plate; The two ends of one of the steel wire ropes are respectively connected to the active connecting rod and the driven connecting rod at the two ends of the cargo platform body, and a plurality of rope clamps are clamped on the two steel wire ropes.

[0009] Preferably, an intermediate connecting plate is fixedly connected between the active connecting rod and the driven connecting rod, and the active connecting rod and the driven connecting rod are connected via the intermediate connecting plate.

[0010] Preferably: the safety brake assembly comprises a safety clamp connecting seat and a safety clamp seat, the safety clamp connecting seat is fixedly connected to the cargo platform body, the safety clamp seat is connected to the safety clamp connecting seat by a plurality of bolts, and the safety clamp seat can float left and right on the safety clamp connecting seat, the top of the safety clamp seat is fixedly connected with a compression spring, and one end of the compression spring close to the cargo platform body abuts against the cargo platform body, the safety clamp seat is also fixedly connected with an instantaneous safety clamp, a brake wheel is slidably connected to the instantaneous safety clamp, the bottom end of the safety clamp lifting head is fixedly connected with a lifting rod by bolts, and one end of the lifting rod is fixed to the brake wheel, and the other end of the lifting rod is hinged to the safety clamp seat; Two sets of guide wheels are also installed on the safety clamp seat, and the two sets of guide wheels are respectively located at two ends of the instantaneous safety clamp.

[0011] Preferably: a cooling component is further provided 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 provided on the instantaneous safety clamp, a pressing plate is hinged in the adjustment groove, one end of the pressing plate passes through and extends into the instantaneous safety clamp, and the extended end of the pressing plate abuts against the cooling component; A plurality of spraying ports are also provided on one side of the safety clamp seat close to the instantaneous safety clamp, and the plurality of spraying ports are all located directly above the instantaneous safety clamp, and the water inlet ends of the plurality of spraying ports are all connected to the cooling component.

[0012] Preferably: the cooling assembly comprises a first connecting pipe and a second connecting pipe, the second connecting pipe is slidably connected to the first connecting pipe, and the second connecting pipe is connected to the first connecting pipe, and the bottom of the first connecting pipe is connected to the cold water tank on the safety clamp seat; A connecting groove is provided inside the second connecting pipe, and the second connecting pipe is connected to the first connecting pipe through the connecting groove. A connecting head is connected to the top of the second connecting pipe, and the connecting head is connected to the connecting groove. The end of the connecting head away from the second connecting pipe is connected to multiple spraying ports.

[0013] Preferably, two sealing balls for limiting water flow are slidably engaged in the connecting groove, one of the sealing balls is arranged in the second connecting pipe close to one end of the first connecting pipe, and the other sealing ball is arranged close to one end of the connecting head.

[0014] Preferably: the cooling assembly further comprises two sliding plates, both of which are fixedly connected to the interior of the instantaneous safety clamp, two sliding plates are fixedly connected to the outer wall of the second communicating tube near the bottom end, and the two sliding plates are respectively slidably connected to adjacent limiting sliding rods, and an abutment plate adapted to the pressing plate is also fixedly connected to the outer wall of the second communicating tube; The bottom of the second connecting pipe is also fixedly connected with a return spring, and the return spring is sleeved on the outside of the first connecting pipe, and the other end of the return spring is fixed to the inner wall of the instantaneous safety clamp.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can meet the safety braking effect of the overweight stacker cargo platform body through the arrangement of the safety lifting component and the safety braking component. The left and right braking devices can meet the working condition of the cargo platform body plus the cargo weight of 60T at most. When the stacker encounters the situation that the movable pulley on one side of the cargo platform body is loose during operation, the braking action can be quickly triggered through the precise mechanical linkage mechanism. The ingenious coordination of the active connecting rod and the driven connecting rod ensures that the safety braking components on both sides can be started at the same time, effectively avoiding the tilting and loss of control of the cargo platform body, thereby greatly improving the safety of cargo handling.

[0016] 2. The present invention sets a speed limiter so that when the descent speed of the cargo platform body exceeds a preset safety value, the braking mechanism can be triggered immediately. The dual insurance design of the speed limiter and the safety brake assembly further enhances the stability and reliability of the stacker under complex working conditions. Whether in the case of loose rope or stall, it can ensure that the cargo platform body stops moving quickly and stably, effectively preventing the occurrence of accidents.

[0017] 3. When the present invention is in use, real-time cooling of the braking area is achieved through the provided cooling component. When the brake wheel slides in the instantaneous safety clamp, it will push the pressing plate to flip, thereby triggering the flow of coolant. The coolant is evenly sprayed on the brake wheel and the instantaneous safety clamp through multiple spray outlets, 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 is reset, and the pressing plate is also flipped and reset. Under the action of the reset spring, the second connecting pipe moves up and resets, and the sealing ball re-closes the connecting groove. This design not only simplifies the operating process, but also improves the overall stability and durability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first viewing angle of the present invention; Figure 2 It is a schematic structural diagram of the safety lifting assembly, the safety braking assembly and the guide wheel body in the present invention; Figure 3 It is a schematic diagram of the structure of the safety lifting assembly and the safety braking assembly in the present invention; Figure 4 A top view of the upper structure of the safety lifting assembly in the present invention Figure 1 ; Figure 5 A top view of the upper structure of the safety lifting assembly in the present invention Figure 2 ; Figure 6 For the present invention Figure 3 An enlarged schematic diagram of the structure at position A above; Figure 7 is a schematic top view of the safety lifting assembly of the present invention; Figure 8 It is a structural schematic diagram of the safety clamp seat in the present invention; Fig. 9 It is a schematic diagram of the structure of the instantaneous safety clamp in the present invention; Fig.10 It is a schematic diagram of the structure of the cooling component in the present invention; Fig.11 It is a cross-sectional schematic diagram of the cooling component in the present invention.

[0019] In the figure: 1. Cargo platform body; 2. Safety lifting assembly; 21. Bottom plate; 22. Anti-rope pulley; 23. Active connecting rod; 24. Safety clamp lifting head; 25. Connecting rod; 26. Driven connecting rod; 27. Heart ring; 28. Middle connecting plate; 3. Safety brake assembly; 31. Safety clamp connecting seat; 32. Safety clamp seat; 33. Instantaneous safety clamp; 34. Compression spring; 35. Lifting rod; 36. Braking wheel; 37. Spraying port; 38. Adjusting groove; 39. Pressing plate; 4. Guide wheel body; 41. Wire rope; 5. Rope clamp; 6. Cooling assembly; 61. First connecting pipe; 62. Second connecting pipe; 63. Sliding plate; 64. Limiting slide rod; 65. Reset spring; 66. Abutment plate; 67. Connecting head; 68. Connecting groove; 69. Sealing ball; 7. Guide wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 cannot be understood as a limitation on the present invention.

[0022] For example, see Figure 1-11, a braking device for a cargo platform of an overweight stacker, comprising a cargo platform body 1, movable pulleys are arranged at both ends of the cargo platform body 1, two groups of safety lifting components 2 and two groups of safety brake components 3 are fixedly connected to the cargo platform body 1, the two groups of safety lifting components 2 and the two groups of safety brake components 3 are respectively arranged at the two ends of the cargo platform body 1, the safety lifting components 2 and the safety brake components 3 located on the same side are arranged perpendicular to each other, a plurality of guide wheel bodies 4 are also fixedly connected to the cargo platform body 1, two groups of steel wire ropes 41 are transmission-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 cargo platform body 1, the safety lifting component 2 comprises a bottom plate 21, the bottom plate 21 is fixedly connected to the cargo platform body 1, a reverse rope wheel 22 is installed between the bottom plate 21 and the cargo platform body 1, a lifting rope is wound around the reverse rope wheel 22, and the lifting rope is transmission-connected to the movable pulley on the cargo platform body 1, the bottom plate 21 is close to the safety brake component 3 An active connecting rod 23 is hinged on one end of the base plate 21, and a connecting rod 25 is hinged on the end of the active connecting rod 23 away from the base plate 21. The other end of the active connecting rod 23 passes through the base plate 21 and is connected to the 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. The end of the safety clamp lifting head 24 away from the connecting rod 25 is fixed to the safety brake assembly 3. A driven connecting rod 26 is also hinged on the end of the base plate 21 away from the safety brake assembly 3, and the driven connecting rod 26 is hinged on the end of the base plate 21 away from the safety brake assembly 3. 6 is connected to the 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 with a heart ring 27, and the two ends of one steel wire rope 41 are respectively connected to the active connecting rod 23 and the driven connecting rod 26 at the two ends of the cargo platform body 1, and multiple rope clamps 5 are clamped on the two steel wire ropes 41. An intermediate connecting plate 28 is fixedly connected between the active connecting rod 23 and the driven connecting rod 26, and the active connecting rod 23 and the driven connecting rod 26 are connected through the intermediate connecting plate 28; When the stacker is running, the anti-rope wheel 22 is started to drive the cargo platform body 1 to move along the stacker column through the lifting rope to store and retrieve goods. When the rope of the movable pulley on one side of the cargo platform body 1 is loose, the movable pulley on this side moves down, and the movable pulley moves down to pull the active connecting rod 23, so that the end of the active connecting rod 23 close to the movable pulley moves down. Since the active connecting rod 23 is hinged on the bottom plate 21, when one side of the active connecting rod 23 moves down, the other end moves up, and the end of the active connecting rod 23 that moves up pulls the safety clamp lifting head 24 up through the connecting rod 25, so that the safety clamp lifting head 24 drives the safety brake assembly 3 to start, so that the safety brake assembly 3 on this side drives the cargo platform body 1 to brake, so that the cargo platform body 1 stops; At the same time, when the active link 23 moves downward, the driven link 26 is pulled downward through the middle connecting plate 28, and the driven link 26 pulls the active link 23 on the other side of the cargo platform body 1 through the wire rope 41 to move, so that the active links 23 on both sides simultaneously drive the safety brake components 3 on both sides to brake, so that the cargo platform body 1 stops quickly and stably, and the cargo platform body 1 is prevented from tilting; At the same time, when the cargo platform body 1 descends at an excessive speed, the speed limiter drives the driven connecting rod 26 on one side to move, and the driven connecting rod 26 drives the active connecting rod 23 to move through the middle connecting plate 28, so that the instantaneous safety clamp 33 on this side is braked. 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 wire rope 41, so that the instantaneous safety clamp 33 on the other side is also braked, so that the cargo platform body 1 can achieve a braking effect in both cases of loose rope and stall.

[0023] For example 2, please refer to Figure 1-11 The safety brake assembly 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 cargo platform body 1. The safety clamp seat 32 is connected to the safety clamp connecting seat 31 by multiple bolts, and the safety clamp seat 32 can float left and right on the safety clamp connecting seat 31. The top of the safety clamp seat 32 is fixedly connected with a compression spring 34, and the end of the compression spring 34 close to the cargo platform body 1 is abutted against the cargo platform body 1. The safety clamp seat 32 is also fixedly connected with an instantaneous safety clamp 33, and 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 with 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 the two ends of the instantaneous safety clamp 33, and a cooling component 6 is also arranged 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, and an adjustment groove 38 is provided on the instantaneous safety clamp 33. A pressing plate 39 is hinged in the adjustment groove 38, and one end of the pressing plate 39 passes through 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 spray ports 37 are also provided on one side of the safety clamp seat 32 close to the instantaneous safety clamp 33, and the plurality of spray ports 37 are all located directly above the instantaneous safety clamp 33, and the water inlet ends of the plurality of spray ports 37 are all connected to the cooling component 6; When the two active connecting rods 23 pull the safety clamp lifting head 24 upward through the connecting rod 25, the safety clamp lifting head 24 simultaneously pulls the adjacent lifting rod 35, so that the lifting rod 35 drives the brake wheel 36 to flip upward. When the brake wheel 36 moves upward, it gradually pushes the instantaneous safety clamp 33, so that the instantaneous safety clamp 33 drives the safety clamp seat 32 to slide on the safety clamp connecting seat 31 toward 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, so that the instantaneous safety clamp 33 is braked, so that the cargo platform body 1 is fixed; One end of the compression spring 34 is close to the cargo platform body 1, providing a reverse force to make the guide wheel 7 close to 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.

[0024] When the brake wheel 36 slides upward in the instantaneous safety clamp 33, it pushes the pressing plate 39 to flip around the adjustment groove 38, so that the other end of the pressing plate 39 moves downward to squeeze the cooling component 6. When the instantaneous safety clamp 33 contacts the inner wall of the brake wheel 36, the cooling component 6 starts to spray cold water between the instantaneous safety clamp 33 and the brake wheel 36 to cool down the connection between the instantaneous safety clamp 33 and the brake wheel 36, so as to avoid excessive heat generated by the friction between the instantaneous safety clamp 33 and the brake wheel 36 to cause damage to the instantaneous safety clamp 33 or the brake wheel 36.

[0025] For example 3, please refer to Figure 8 , Fig. 9 , Fig.10 and Fig.11The cooling 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 the second connecting pipe 62 is connected to the first connecting pipe 61. The bottom of the first connecting pipe 61 is connected to the cold water tank on the safety clamp seat 32. A connecting groove 68 is provided inside the second connecting pipe 62. The second connecting pipe 62 is connected to the first connecting pipe 61 through the connecting groove 68. A connector 67 is connected to the top of the second connecting pipe 62, and the connector 67 is connected to the connecting groove 68. One end of the connector 67 away from the second connecting pipe 62 is connected to a plurality of spray ports 37. Two sealing balls 69 for limiting water flow are also slidably clamped in the connecting groove 68, and one of the sealing balls 69 is set Another sealing ball 69 is arranged at one end of the second connecting pipe 62 near the first connecting pipe 61, and the cooling component 6 also includes two sliding plates 63, and the two sliding plates 63 are fixedly connected to the interior of the instantaneous safety clamp 33. Two sliding plates 63 are fixedly connected to the outer wall of the second connecting pipe 62 near the bottom end, and the two sliding plates 63 are respectively slidably connected to the adjacent limiting slide bars 64. An abutment plate 66 adapted to the pressing plate 39 is also fixedly connected to the outer wall of the second connecting pipe 62. A reset spring 65 is also fixedly connected to the bottom of the second connecting pipe 62, and the reset spring 65 is sleeved on the outer side of the first connecting pipe 61, and the other end of the reset spring 65 is fixed to the inner wall of the instantaneous safety clamp 33. When the brake wheel 36 pushes the pressing plate 39 to flip, one end of the pressing plate 39 located in 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 connecting groove 68 increases and squeezes the two sealing balls 69. In the initial state, the two sealing balls 69 are in contact with the inner wall of the connecting groove 68 and block the connecting groove 68. When the pressure in the connecting groove 68 increases, the two sealing balls 69 are driven to move upward in the connecting groove 68, so that the coolant in the first connecting pipe 61 can enter the second connecting pipe 62 through the connecting groove 68. At the same time, the coolant originally in the connecting groove 68 continues to move upward under the action of pressure, and is pumped to the spray port 37 through the connector 67, and is sprayed through the multiple spray ports 37 to cool down the instantaneous safety clamp 33 and the brake wheel 36. When the brake wheel 36 is reset, the brake wheel 36 no longer pushes the pressing plate 39, and the second connecting pipe 62 moves upward and resets under the action of the rebound force of the reset spring 65, and the abutment plate 66 moves upward and pushes the pressing plate 39 to flip and reset; When the second connecting pipe 62 moves upward, the two sealing balls 69 fall down under the action of gravity and close the connecting groove 68 again to return to the original position; At the same time, by providing the sliding plate 63 and the limiting sliding rod 64 , when the second connecting tube 62 slides up and down, the sliding plate 63 and the limiting sliding rod 64 can assist the sliding of the second connecting tube 62 , making the second connecting tube 62 more stable.

[0026] The working principle of the present invention is: When the stacker is running, the anti-rope wheel 22 starts to drive the cargo platform body 1 to move along the stacker column through the lifting rope to store and retrieve goods. When the movable pulley on one side of the cargo platform body 1 is loose, the movable pulley on that side moves down, and when the movable pulley moves down, it pulls one end of the active connecting rod 23 to move down, and the other end of the active connecting rod 23 moves up and pulls the safety clamp lifting head 24 up through the connecting rod 25, so that the safety clamp lifting head 24 drives the lifting rod 35 to move, and the lifting rod 35 drives the brake wheel 36 to flip upward, so that the instantaneous safety clamp 33 on that side is braked, and drives the cargo platform body 1 to stop; At the same time, when the active link 23 moves downward, the driven link 26 is pulled downward through the middle connecting plate 28, and the driven link 26 pulls the active link 23 on the other side of the cargo platform body 1 through the wire rope 41 to move, so that the active links 23 on both sides simultaneously drive the safety brake components 3 on both sides to brake, so that the cargo platform body 1 stops quickly and stably, and the cargo platform body 1 is prevented from tilting; At the same time, when the cargo platform body 1 descends at an overspeed, the speed limiter drives the driven link 26 on one side to move, and the driven link 26 drives the active link 23 to move through the middle connecting plate 28, so that the instantaneous safety clamp 33 on this side is braked. At the same time, the driven link 26 on this side drives the active link 23 on the other side to move through the wire rope 41, so that the instantaneous safety clamp 33 on the other side is also braked, so that the cargo platform body 1 can achieve a braking effect in both cases of loose rope and stall; When the brake wheel 36 slides upward in the instantaneous safety clamp 33, it pushes the pressing plate 39 to flip with the adjusting groove 38 as the axis, and the pressing plate 39 pushes the abutting plate 66 to move downward, and 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 connecting groove 68 increases and squeezes the two sealing balls 69. In the initial state, the two sealing balls 69 are in contact with the inner wall of the connecting groove 68 and block the connecting groove 68. When the pressure in the connecting groove 68 increases, the two sealing balls 69 are driven to move upward in the connecting groove 68, so that the coolant in the first connecting pipe 61 can enter the second connecting pipe 62 through the connecting groove 68. At the same time, the coolant originally in the connecting groove 68 continues to move upward under the action of pressure, and is pumped to the spray port 37 through the connector 67, and is sprayed through the multiple spray ports 37 to cool down the instantaneous safety clamp 33 and the brake wheel 36. When the brake wheel 36 is reset, the brake wheel 36 no longer pushes the pressing plate 39, and the second connecting pipe 62 moves upward and resets under the action of the rebound force of the reset spring 65, and the abutment plate 66 moves upward and pushes the pressing plate 39 to flip and reset; When the second connecting pipe 62 moves upward, the two sealing balls 69 fall down under the action of gravity and close the connecting groove 68 again to return to the original position.

[0027] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0028] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which 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 braking components (3). The two groups of safety lifting components (2) and the two groups of safety braking components (3) are respectively arranged at the two ends of the cargo platform body (1). The safety lifting components (2) and the safety braking 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). The plurality of guide wheel bodies (4) are transmission-connected with two groups of steel wire ropes (41). 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).

2. The overweight stacker cargo platform braking device according to claim 1, characterized in that: 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); a connecting rod (25) is hingedly connected to one end of the active connecting rod (23) away from the base plate (21); 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).

3. The braking device for the cargo platform of an overweight stacker according to claim 2, characterized in that: 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).

4. The braking device for the cargo platform of an overweight stacker according to claim 3, 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).

5. The braking device for the cargo platform of an overweight stacker according to claim 4, 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).

6. The braking device for the cargo platform of an overweight stacker according to claim 5, 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).

7. The braking device for the cargo platform of an overweight stacker according to claim 6, 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).

8. The braking device for the cargo platform of an overweight stacker according to claim 7, 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).

9. The overweight stacker cargo platform braking device according to claim 8, 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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