Hoisting rigging with lubricating structure

Abstract

The utility model discloses a hoisting rigging with a lubricating structure, which relates to the technical field of hoisting equipment and comprises a base, a lubricating mechanism is fixedly mounted in the middle of the base, winding mechanisms are fixedly mounted on two sides of the bottom of the base, and hoisting steel cables are wound on the outer surfaces of the winding mechanisms. By adopting the structure and arranging the lubricating module, when the device is used, the lead screw can be driven by the second motor to drive the sliding block to slide, so that the second oil guide roller is in contact with the steel cable, the first motor is started to wind the steel cable, the oil guide roller is driven to rotate, the oil discharge electromagnetic valve is started, and oil flows into the shell; when oil needs to be supplemented, the oil inlet electromagnetic valve at the top of the oil tank is opened, oil can be conveniently and rapidly added by means of the guide hopper and the oil adding pipe, the advantages of automatic oil coating and oil supplementing are obvious, and the use convenience of equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, and specifically relates to a hoisting sling with a self-lubricating structure. Background Technology

[0002] In many fields such as modern industrial production, construction, and logistics, lifting devices have become indispensable key equipment due to their powerful lifting and handling capabilities. From hoisting building materials on construction sites to loading and unloading containers at port terminals, the efficient operation of lifting devices has greatly improved production efficiency and promoted the rapid development of various industries. As the core component of lifting devices to realize the lifting function, the performance and reliability of lifting cables are directly related to the safety and stability of the entire lifting operation.

[0003] However, examining common lifting devices reveals a prevalent and pressing problem: the lifting cables lack an automatic lubrication system. Traditional lifting devices rely on manual, periodic application of lubricating oil to maintain basic lubrication. This method has significant drawbacks. Firstly, manual lubrication is difficult to achieve in a timely, precise, and comprehensive manner. Secondly, the complex and variable environment of construction sites, coupled with busy work schedules, easily leads to prolonged lubrication cycles or missed lubrication points. This results in increased friction between the internal wires and between the cable and contact parts such as pulleys and drums due to the lack of continuous and effective lubrication during long-term use. Frequent friction not only accelerates cable wear and significantly shortens its lifespan but also increases equipment maintenance costs. Furthermore, manual lubrication can lead to localized overheating, reducing the strength of the steel cable and posing serious safety hazards. On the other hand, in some high-altitude, harsh, or inaccessible work scenarios, manual lubrication is extremely difficult or even impossible. For example, for tower crane cables on the top of tall buildings or offshore lifting equipment cables operating in deep-sea environments, manual climbing or approaching for lubrication is not only inefficient but also poses significant safety risks. In summary, existing lifting devices for steel cables lack an automatic lubrication structure, resulting in numerous problems in terms of ease of use, maintenance costs, and safety. This severely restricts the further improvement of the performance and expansion of the application scope of lifting devices. Therefore, it is necessary to develop a lifting cable structure or device with an automatic lubrication function. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a lifting sling with a self-lubricating structure to solve the problem that the locking mechanism of the existing lifting equipment lacks an automatic lubrication structure.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A lifting sling with a self-lubricating structure includes a base, a lubrication mechanism fixedly installed in the middle of the base, and a winding mechanism fixedly installed on both sides of the bottom of the base. A lifting steel cable is wound on the outer surface of the winding mechanism.

[0007] The winding mechanism includes a fixed plate, which is fixedly installed on both sides of the bottom of the base. A winding roller is rotatably connected to the inner side of the fixed plate. A first motor is fixedly installed at the lower outer side of the fixed plate. The output end of the first motor passes through the fixed plate and is fixedly connected to one side of the winding roller. The lifting steel cable is wound on the outer surface of the winding roller. The inner side of the lubrication mechanism is in close contact with the outer surface of the lifting steel cable.

[0008] As a preferred technical solution, a connecting shaft is fixedly installed on the top of the base, and a lifting mounting plate is fixedly installed on the top of the connecting shaft.

[0009] As a preferred technical solution, mounting holes are provided at all four corners of the lifting mounting plate, and the mounting holes are countersunk holes.

[0010] As a preferred technical solution, the lubrication mechanism includes an adjustment component, which is fixedly installed in the middle of the bottom of the base. Connecting arms are fixedly installed on both sides of the bottom of the adjustment component, and lubrication modules are provided on the inner side of each connecting arm.

[0011] As a preferred technical solution, the adjustment component includes a top rail, which is fixedly installed in the middle of the bottom of the base. A lead screw is rotatably connected inside the top rail, and the two ends of the lead screw have opposite thread directions. A slider is threaded to both ends of the lead screw, and the slider is slidably connected to the two ends inside the top rail. The bottom of the slider is fixedly connected to the top of the connecting arm. A second motor is fixedly installed at one end of the top rail, and the output end of the second motor passes through the top rail and is fixedly connected to one end of the lead screw.

[0012] As a preferred technical solution, the lubrication module includes an oil tank, which is fixedly installed on the inner side of the connecting arm. An oil discharge solenoid valve is fixedly installed at the bottom of the oil tank, a filling pipe is fixedly installed at the top input end of the oil tank, an oil inlet solenoid valve is fixedly installed at the top of the filling pipe, a guide bucket is fixedly installed at the top of the oil inlet solenoid valve, and a lubrication assembly is fixedly installed at the bottom of the oil discharge solenoid valve.

[0013] As a preferred technical solution, the lubrication assembly includes a concave seat and an oil drain pipe. The oil drain pipe is fixedly installed at the bottom of the oil drain solenoid valve. The concave seat is fixedly installed at the lower inner end of the connecting arm. A housing is fixedly installed at the bottom of the oil drain pipe. The top of the housing is connected to the inside of the oil drain pipe. A first oil guide roller is rotatably connected inside the housing. A second oil guide roller is rotatably connected inside the concave seat. The first and second oil guide rollers are in close contact. The inner side of the second oil guide roller is in close contact with the suspension steel cable.

[0014] In summary, the present invention has the following main advantages:

[0015] First, this device adopts a lubrication mechanism, which can significantly improve the automation of lubrication of the hoisting steel cable. When lubrication is needed, the second motor is started. Because the threads at both ends of the lead screw rotate in opposite directions, the slider drives the slider to slide in the opposite direction in the top rail, pushing the connecting arm to make the lubrication module fit against the steel cable. When the steel cable moves, the lubrication module is automatically lubricated. After lubrication, the second motor rotates in the opposite direction to move the lubrication module outward. This design gives the device an automatic lubrication function. Compared with manual climbing, it is easy to operate, has low risk, and ensures efficient and safe operation.

[0016] Secondly, by setting up a lubrication module, during use, the device can drive the second motor to drive the lead screw to slide the slider, causing the second oil guide roller to contact the steel cable. The first motor is then started to wind up the steel cable, driving the oil guide roller to rotate and opening the oil discharge solenoid valve. Oil flows into the housing and is evenly coated onto the surface of the steel cable by the rotating oil guide roller. After operation, the oil discharge solenoid valve is closed. When oil needs to be replenished, the oil inlet solenoid valve at the top of the oil tank is opened, and oil can be easily added using the guide bucket and oil filling pipe. The automatic oiling and replenishment advantages are obvious, improving the ease of use of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view structural diagram of this utility model;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the lubrication module structure of this utility model;

[0021] Figure 5 This is a utility model Figure 4 A magnified structural diagram at point A.

[0022] Reference numerals: 1. Base; 2. Lubrication mechanism; 21. Adjustment component; 211. Top rail; 212. Lead screw; 213. Slider; 214. Second motor; 22. Connecting arm; 23. Lubrication module; 231. Oil tank; 232. Oil discharge solenoid valve; 233. Oil filling pipe; 234. Oil inlet solenoid valve; 235. Guide bucket; 236. Lubrication group; 2361. Concave seat; 2362. Oil discharge pipe; 2363. Housing; 2364. First guide roller; 2365. Second guide roller; 3. Winding mechanism; 31. Fixing plate; 32. Winding roller; 33. First motor; 4. Lifting cable; 5. Coupling shaft; 6. Lifting mounting plate; 7. Mounting hole. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 5 The lifting sling with a self-lubricating structure in this embodiment includes a base 1, a lubrication mechanism 2 fixedly installed in the middle of the base 1, a winding mechanism 3 fixedly installed on both sides of the bottom of the base 1, and a lifting steel cable 4 wound on the outer surface of the winding mechanism 3.

[0025] The winding mechanism 3 includes a fixed plate 31, which is fixedly installed on both sides of the bottom of the base 1. A winding roller 32 is rotatably connected to the inner side of the fixed plate 31. A first motor 33 is fixedly installed on the lower outer side of one of the fixed plates 31. The output end of the first motor 33 passes through the fixed plate 31 and is fixedly connected to one side of the winding roller 32. The lifting steel cable 4 is wound onto the outer surface of the winding roller 32. The inner side of the lubrication mechanism 2 is in close contact with the outer surface of the lifting steel cable 4. During the application of this device, the base 1 serves as the main support, and the winding mechanisms 3 on both sides of the bottom are responsible for winding and unwinding the lifting steel cable 4. When the first motor 33 is started, its output end drives the winding roller 32 to wind around the fixed plate 31. The fixed plate 31 rotates inward. Since the lifting cable 4 is wound on the outer surface of the winding roller 32, the rotation of the winding roller 32 can realize the winding or unwinding of the lifting cable 4, meeting the requirements for cable length in different lifting scenarios. The lubrication mechanism 2, which is fixedly installed in the middle of the base 1, is in close contact with the outer surface of the lifting cable 4. When the lifting cable 4 moves during winding or unwinding, the lubrication mechanism 2 can lubricate the outer surface of the cable, providing continuous lubrication protection for the cable, reducing friction between the cable and other components, extending the service life of the cable, reducing safety risks during lifting operations, and ensuring the efficient and stable operation of the entire lifting sling.

[0026] refer to Figures 1-3A coupling 5 is fixedly installed on the top of the base 1, and a lifting mounting plate 6 is fixedly installed on the top of the coupling 5. Mounting holes 7 are provided at each of the four corners of the lifting mounting plate 6. These mounting holes 7 are countersunk holes. The coupling 5 serves to securely connect the lower lifting sling main structure with the upper lifting mounting plate 6. During use, the lifting mounting plate 6 is used to connect with external lifting equipment. The countersunk holes at its four corners are ingeniously designed, allowing the heads of the matching bolts to be recessed into the holes, ensuring a flat surface after installation and preventing bolt protrusion from affecting equipment installation or creating safety hazards. In practical applications, by passing the bolts through the countersunk holes and tightening them with the corresponding bolt holes on the lifting equipment, the lifting mounting plate 6 can be securely installed on the lifting equipment. Thus, the lifting or lowering action of the lifting equipment can be transmitted through the lifting mounting plate 6 and the coupling 5 to the base 1 and the winding mechanism 3 and lifting cable 4 below, achieving safe and efficient lifting operations for heavy objects.

[0027] refer to Figures 1-5 The lubrication mechanism 2 includes an adjustment component 21, which is fixedly installed in the middle of the bottom of the base 1. Connecting arms 22 are fixedly installed on both sides of the bottom of the adjustment component 21. Lubrication modules 23 are provided on the inner sides of the connecting arms 22. The adjustment component 21 includes a top rail 211, which is fixedly installed in the middle of the bottom of the base 1. A lead screw 212 is rotatably connected inside the top rail 211. The two ends of the lead screw 212 have opposite thread directions. Slider blocks 213 are threaded to both ends of the lead screw 212. The sliders 213 are slidably connected to the two ends inside the top rail 211. The bottom of the sliders 213 is fixedly connected to the top of the connecting arms 22. A second motor 214 is fixedly installed at one end of the top rail 211. The output end of the second motor 214 passes through the top rail 211 and is fixedly connected to one end of the lead screw 212. During use, when it is necessary to adjust the lifting cable 4... During lubrication, the second motor 214 is started. The output end of the second motor 214 drives the lead screw 212 to rotate inside the top rail 211. Since the threads at both ends of the lead screw 212 rotate in opposite directions, the sliders 213 at both ends slide in opposite directions inside the top rail 211. The bottom of the slider 213 is fixed to the top of the connecting arm 22. Its sliding drives the connecting arm 22 to move, and the lubrication module 23 set on the inner side of the connecting arm 22 moves accordingly. In this way, the position of the lubrication modules 23 on both sides can be precisely adjusted so that they can fit tightly against the outer surface of the lifting steel cable 4, preparing for the subsequent automatic lubrication operation of the steel cable. When lubrication is not required, only the two lubrication modules 23 need to be adjusted to move outward. This allows the device to achieve flexible and precise control of the position of the lubrication modules 23 during use, so as to meet the lubrication needs of the lifting steel cable 4 under different working conditions.

[0028] refer to Figures 4-5The lubrication module 23 includes an oil tank 231, which is fixedly installed inside the connecting arm 22. An oil discharge solenoid valve 232 is fixedly installed at the bottom of the oil tank 231. An oil filling pipe 233 is fixedly installed at the top input end of the oil tank 231. An oil inlet solenoid valve 234 is fixedly installed at the top of the oil filling pipe 233. A guide hopper 235 is fixedly installed at the top of the oil inlet solenoid valve 234. A lubrication assembly 236 is fixedly installed at the bottom of the oil discharge solenoid valve 232. The lubrication assembly 236 includes a concave seat 2361 and an oil discharge pipe 23. 62. The oil drain pipe 2362 is fixedly installed at the bottom of the oil drain solenoid valve 232. The concave seat 2361 is fixedly installed at the lower inner end of the connecting arm 22. A housing 2363 is fixedly installed at the bottom of the oil drain pipe 2362. The top of the housing 2363 is connected to the inside of the oil drain pipe 2362. A first oil guide roller 2364 is rotatably connected inside the housing 2363. A second oil guide roller 2365 is rotatably connected inside the concave seat 2361. The first oil guide roller 2364 and the second oil guide roller 2365 are in close contact. The inner side of the second guide roller 2365 is in contact with the suspension cable 4. When this lubrication module 23 is working, after the connecting arm 22 is driven by the adjusting component 21 to bring the oil tank 231 and related components close to the suspension cable 4, the oil discharge solenoid valve 232 is opened. The lubricating oil in the oil tank 231 flows into the housing 2363 through the oil discharge pipe 2362. The first guide roller 2364 in the housing 2363 is in contact with the second guide roller 2365 in the concave seat 2361. The suspension cable 4 is in contact with the inner side of the second guide roller 2365. As the suspension cable 4... The movement of the first oil guide roller 2364 causes the second oil guide roller 2365 to rotate, which in turn drives the first oil guide roller 2364 to rotate. During the rotation, the lubricating oil is evenly applied to the surface of the two oil guide rollers. The second oil guide roller 2365 then applies the lubricating oil to the steel cable to achieve lubrication. When lubricating oil needs to be replenished, the oil inlet solenoid valve 234 is opened, and the oil enters the oil tank 231 through the guide bucket 235 and the oil filling pipe 233. By opening and closing the oil discharge and oil inlet solenoid valves 234, the discharge and replenishment of lubricating oil can be flexibly controlled to ensure continuous and efficient lubrication operations.

[0029] Operating principle and advantages: This device, by incorporating a lubrication mechanism 2, significantly enhances the automation level of lubrication for the lifting cable 4 during application. When lubrication of the lifting cable 4 is required, the second motor 214 is activated. After the second motor 214 starts running, it drives the lead screw 212 to rotate inside the top rail 211. Since the threads at both ends of the lead screw 212 rotate in opposite directions, its rotation drives the slider 213 to slide towards both ends inside the top rail 211. The sliding of the slider 213 further drives the connecting arm 22 to generate relative displacement, thereby pushing the lubrication module 23 to move. Through precise adjustment, the two lubrication modules 23 are brought closer together. It fits tightly against the outer surface of the lifting cable 4. During the lifting operation of the lifting cable 4, the lubrication module 23 can automatically lubricate the outer surface of the cable. After lubrication, simply start the second motor 214 to rotate in the opposite direction, and then adjust the lubrication module 23 to move outward, which facilitates automatic lubrication. This innovative design gives the device an automatic lubrication function, which greatly improves the convenience of lubrication of the lifting cable. Compared with the traditional manual climbing lubrication method, this automatic lubrication mechanism is not only easy to operate, but also significantly reduces the risk of lubrication operation, ensuring the efficiency and safety of the operation process.

[0030] The lubrication module 23 of this device plays a crucial role in the lubrication operation. When the lead screw 212 drives the slider 213 to move, causing the second oil guide roller 2365 to contact the outer surface of the suspension cable 4, the first motor 33 is activated. The first motor 33 drives the winding roller 32 on the inner side of the fixed plate 31 to rotate, thereby winding the suspension cable 4 and causing the cable to move upward. During this process, the suspension cable 4 is in close contact with the outer surface of the second oil guide roller 2365. As the cable moves, the second oil guide roller 2365 is driven to rotate synchronously. The rotation of the second oil guide roller 2365 in turn drives the first oil guide roller 2364, whose top is located inside the housing 2363, to rotate. At this time, the oil discharge solenoid valve 232 is opened, and the oil flows into the oil discharge pipe 2362 through the oil discharge solenoid valve 232 and is then introduced into the housing 2363 through the oil discharge pipe 2362. With the continuous rotation of the first guide roller 2364 and the second guide roller 2365, lubricating oil can be evenly applied to the surfaces of the two guide rollers. Then, the second guide roller 2365 precisely applies the lubricating oil to the outer surface of the suspension steel cable 4, achieving efficient and uniform automatic oiling and lubrication. In addition, after the lubrication and oiling operation is completed, simply close the drain solenoid valve 232 to seal the bottom of the oil tank 231. The oil inlet solenoid valve 234 installed on the top of the oil tank 231 can be opened when lubricating oil needs to be replenished. With the help of the guide bucket 235 and the oil filling pipe 233, the lubrication module 23 of this device has excellent automatic oiling function, which greatly improves the convenience of equipment use. It has significant advantages in automatic oiling and rapid lubrication replenishment and has extremely high promotion and application value.

Claims

1. A lifting sling with a self-lubricating structure, comprising a base (1), characterized in that: A lubrication mechanism (2) is fixedly installed in the middle of the base (1), and a winding mechanism (3) is fixedly installed on both sides of the bottom of the base (1). A lifting steel cable (4) is wound on the outer surface of the winding mechanism (3). The winding mechanism (3) includes a fixed plate (31), which is fixedly installed on both sides of the bottom of the base (1). A winding roller (32) is rotatably connected to the inner side of the fixed plate (31). A first motor (33) is fixedly installed at the lower outer side of the fixed plate (31). The output end of the first motor (33) passes through the fixed plate (31) and is fixedly connected to one side of the winding roller (32). The lifting cable (4) is wound on the outer surface of the winding roller (32). The inner side of the lubrication mechanism (2) is in close contact with the outer surface of the lifting cable (4).

2. The lifting sling with a self-lubricating structure according to claim 1, characterized in that: A connecting shaft (5) is fixedly installed on the top of the base (1), and a lifting mounting plate (6) is fixedly installed on the top of the connecting shaft (5).

3. A lifting sling with a self-lubricating structure according to claim 2, characterized in that: Mounting holes (7) are provided at all four corners of the lifting mounting plate (6), and the mounting holes (7) are countersunk holes.

4. A lifting sling with a self-lubricating structure according to claim 1, characterized in that: The lubrication mechanism (2) includes an adjustment component (21), which is fixedly installed in the middle of the bottom of the base (1). Connecting arms (22) are fixedly installed on both sides of the bottom of the adjustment component (21), and lubrication modules (23) are provided on the inner side of each connecting arm (22).

5. A lifting sling with a self-lubricating structure according to claim 4, characterized in that: The adjustment assembly (21) includes a top rail (211), which is fixedly installed in the middle of the bottom of the base (1). A lead screw (212) is rotatably connected inside the top rail (211). The two ends of the lead screw (212) have opposite thread directions. Both ends of the lead screw (212) are threadedly connected to sliders (213). The sliders (213) are slidably connected to the two ends inside the top rail (211). The bottom of the sliders (213) is fixedly connected to the top of the connecting arm (22). A second motor (214) is fixedly installed at one end of the top rail (211). The output end of the second motor (214) passes through the top rail (211) and is fixedly connected to one end of the lead screw (212).

6. A lifting sling with a self-lubricating structure according to claim 5, characterized in that: The lubrication module (23) includes an oil tank (231), which is fixedly installed on the inner side of the connecting arm (22). An oil discharge solenoid valve (232) is fixedly installed at the bottom of the oil tank (231). An oil filling pipe (233) is fixedly installed at the top input end of the oil tank (231). An oil inlet solenoid valve (234) is fixedly installed at the top of the oil filling pipe (233). A guide bucket (235) is fixedly installed at the top of the oil inlet solenoid valve (234). A lubrication assembly (236) is fixedly installed at the bottom of the oil discharge solenoid valve (232).

7. A lifting sling with a self-lubricating structure according to claim 6, characterized in that: The lubrication assembly (236) includes a concave seat (2361) and an oil drain pipe (2362). The oil drain pipe (2362) is fixedly installed at the bottom of the oil drain solenoid valve (232). The concave seat (2361) is fixedly installed at the lower inner side of the connecting arm (22). A housing (2363) is fixedly installed at the bottom of the oil drain pipe (2362). The top of the housing (2363) is connected to the inside of the oil drain pipe (2362). A first oil guide roller (2364) is rotatably connected inside the housing (2363). A second oil guide roller (2365) is rotatably connected inside the concave seat (2361). The first oil guide roller (2364) and the second oil guide roller (2365) are in close contact. The inner side of the second oil guide roller (2365) is in close contact with the suspension cable (4).

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