Four-beam casting bridge crane with steel cable self-lubricating function
By introducing the steel cable self-lubricating structure and guide wire-winding structure into the four-girder casting bridge crane, the problems of steel cable wear and shaking are solved, the stability and safety of the equipment are improved, and the operating costs and safety risks are reduced.
Patent Information
- Application Number
- CN202423060479.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The existing four-girder cast bridge crane lacks the self-lubricating function of the steel cables, which leads to serious wear of the steel cables, affects the stability and safety of the equipment, increases operating costs, and may cause safety accidents.
The steel cable self-lubricating structure is adopted, by spraying and recycling lubricating oil, combined with reciprocating guided wire taking-up and lateral restraint structure, to ensure that the steel cable remains neat and stable during the winding process, reducing friction and shaking.
Extend the service life of steel cables, reduce operating costs, improve equipment operation stability and safety, reduce safety risks, and improve operational efficiency and reliability.
Smart Images
Figure CN223409252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical engineering, in particular to a four-beam casting bridge crane with a steel cable self-lubricating function. Background Art
[0002] Four-girder casting bridge cranes are important equipment for realizing mechanization and automation of production processes in modern industrial production and lifting and transportation. They are widely used in industrial and mining enterprises, steel and chemical industries, railway transportation, port terminals, and logistics turnover. This heavy-duty lifting equipment, with its unique four-girder structure design, provides extremely high stability and carrying capacity, and can meet the lifting and transportation needs in various complex environments. Its manufacturer has advanced R&D and production capabilities, can customize according to the actual needs of customers, and provide comprehensive after-sales service to ensure that the equipment can operate stably and efficiently. In modern production activities, four-girder casting bridge cranes play an irreplaceable role and are of great significance to improving production efficiency and ensuring production safety.
[0003] In the existing technology, four-girder cast bridge cranes do not have the self-lubricating function of the steel cables, which may cause serious wear of the steel cables during long-term use, affecting the stability and safety of the equipment. Due to the lack of effective lubrication of the steel cables during the load-bearing and winding process, it is easy to cause increased friction between the steel cables, thereby generating excessive heat and wear, which not only shortens the service life of the steel cables, but also causes serious safety accidents due to the sudden breakage of the steel cables. In addition, the steel cables that lack the self-lubricating function also require regular manual inspection and maintenance, which increases operating costs. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a four-beam casting bridge crane with a steel cable self-lubricating function.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a four-girder casting bridge crane with a self-lubricating function of a steel cable, comprising a lifting bridge, the top of the lifting bridge is slidably connected to the lifting bridge, the top of the lifting bridge is slidably connected to the workbench, the top of the workbench is fixed with a driving brake device, the driving end of the driving brake device is fixed with a wire-taking shaft, the surface of the wire-taking shaft is rotatably connected to the wire-taking support seat, the wire-taking support seat is fixed to the top of the workbench, the surface of the wire-taking shaft is fixed with a wire-taking wheel, the top of the workbench is fixed with a self-lubricating device, a lubricating oil storage chamber is provided inside the self-lubricating device, a recovery plate is fixed on the top of the lubricating oil storage chamber, a circular groove is opened from the top to the bottom of the recovery plate, an oil sprayer is fixed on the top of the self-lubricating device, the top of the oil sprayer is connected with an oil spray pipe, the oil inlet end of the oil spray pipe is connected with an oil pump, the oil pump is a submersible pump, and the oil pump is arranged inside the lubricating oil storage chamber. In the prior art, four-girder cast bridge cranes do not have a self-lubricating function for steel cables, which may cause serious wear of the steel cables during long-term use, affecting the stability and safety of the equipment. Due to the lack of effective lubrication of the steel cables during the load-bearing and winding processes, the friction between the steel cables is easily increased, thereby generating excessive heat and wear, which not only shortens the service life of the steel cables, but also causes serious safety accidents due to the sudden breakage of the steel cables. In addition, the steel cables lacking a self-lubricating function require manual regular inspection and maintenance, which increases operating costs. To address such problems, the present invention adopts a steel cable self-lubricating structure. When the steel cables need to be lubricated, the oil pump located in the lubricating oil storage chamber is started, and the oil is sprayed on the cables through the oil sprayer. Lubricating oil is sprayed on the surface of the steel cable. After spraying, the recovery plate at the bottom of the steel cable is used to recycle the lubricating oil, which effectively avoids excessive wear of the steel cable during long-term use, ensures the stability and safety of equipment operation, reduces friction during load and winding, significantly reduces overheating and wear caused by friction, extends the service life of the steel cable, reduces the risk of serious safety accidents caused by sudden breakage of the steel cable, and significantly improves the recycling of lubricating oil. While achieving lubrication effect, it reduces dependence on regular manual inspection and maintenance, saves maintenance costs for operators, improves the overall efficiency and reliability of lifting operations, and makes equipment management more convenient and economical.
[0006] Preferably, a cable management support seat is fixed on the top of the workbench, a cable management sliding shaft is fixed through the front to the back of the cable management support seat, a first screw rod is rotatably connected to the cable management support seat from the front to the back, the surface of the first screw rod is threadedly connected to the cable management seat, a cable opening is opened from one side to the other side of the cable management seat, the cable management seat is slidably connected to the cable management sliding shaft, the first screw rod is driven to rotate by a first motor, and the first motor is fixed to the front of the workbench. In the prior art, the wire-reeling structure of the four-girder cast bridge crane lacks a key reciprocating cycloid structure. This design deficiency results in the inability of the steel cable to remain neat and orderly when it is rewound onto the take-up wheel. Due to the lack of a mechanism to control the uniform arrangement of the steel cables, the steel cables are unevenly wound, and crosses or tangles occur. This not only reduces operating efficiency, but also causes additional friction damage during the wire-reeling and retracting process, increases the difficulty of operation, and poses a potential threat to the stable operation and safety of the crane. To address such problems, the utility model adopts a reciprocating guided wire-reeling structure. During the wire-reeling operation of the four-girder cast bridge crane, the first motor is started to drive the first screw rod, thereby prompting the wire-straightening seat to perform reciprocating motion, so as to ensure that the steel cables remain neat and orderly when they are rewound onto the take-up wheel, significantly improving operating efficiency and the stability of equipment operation, avoiding uneven winding, crosses or tangles of the steel cables, reducing friction damage, extending the service life of the steel cables, and reducing operating difficulty, thereby enhancing the safety performance of the crane, avoiding potential safety risks, and providing safer and more reliable working conditions for operators and equipment.
[0007] Preferably, a guide support seat is fixed on the top of the workbench, a horizontal guide shaft is rotatably connected to one side of the guide support seat, a horizontal guide wheel is fixed on the surface of the horizontal guide shaft, a vertical guide shaft is rotatably connected to the inner wall of the workbench, and a vertical guide wheel is fixed on the surface of the vertical guide shaft. In the existing technology, since the four-girder casting bridge crane adopts a direct vertical steel cable structure for lifting operations, this design often leads to unnecessary shaking during the lifting process. The direct vertical steel cable lacks effective lateral restraint when subjected to force, and is prone to swinging when lifting or positioning heavy objects. This not only reduces the operating efficiency, but also increases the safety risks during operation. To address this problem, the utility model adopts a lateral restraint structure. When the four-girder casting bridge crane is operating, the shaking of the steel cable is effectively controlled. By adopting a horizontal guide wheel, the swing of the steel cable in the vertical direction is limited to ensure a smooth lifting process. At the same time, the setting of the vertical guide wheel further restrains the shaking in the same direction as the horizontal guide wheel, thereby significantly improving the efficiency and safety of the lifting operation, reducing the swing when lifting or positioning heavy objects, reducing the safety risks caused by the shaking of the steel cable, and improving the operational stability of the crane, ensuring the smooth progress of the operation process, and providing solid technical support for ensuring the safety of operators and equipment.
[0008] Preferably, an external fixing plate is fixed to the back of the self-lubricating device, and a second screw rod and an extrusion sliding shaft are rotatably connected from the back to the front of the external fixing plate, and the second screw rod is rotatably connected to the inner wall of the self-lubricating device, and both ends of the second screw rod are threadedly connected to an extrusion seat, and an oil-absorbing sponge is bonded between the two extrusion seats, and the two extrusion seats have opposite threads, and the two extrusion seats move toward or in opposite directions under the drive of the second screw rod. An oil seepage port is opened on one side of the lubricating oil storage chamber, and the extrusion seat is slidably connected to the extrusion sliding shaft. A limited seat is fixed to the inner wall of the self-lubricating device, and the second screw rod is driven to rotate by a second motor, and the second motor is fixed to the back of the external fixing plate. When the steel cable passes through the oil-absorbing sponge, the lubricating oil attached to its surface is absorbed into the oil-absorbing sponge. Once the oil-absorbing sponge reaches saturation, the second motor is started to drive the second screw, which in turn pushes the squeezing seat to squeeze the oil-absorbing sponge. In this way, the lubricating oil squeezed out of the oil-absorbing sponge flows back to the lubricating oil storage chamber through the oil seepage port, further promoting the recycling of the lubricating oil. After the squeezing is completed, the second motor is activated again to return the squeezing seat to its original position so that the oil-absorbing sponge can continue to absorb the oil, thereby effectively reducing the pollution of oil to the environment, preventing oil from slipping and causing ground slip accidents, keeping the steel cable clean, extending its service life, ensuring the safe operation of the crane and reducing maintenance costs.
[0009] Preferably, a lubricating oil observation window is provided through the front of the workbench, and an observation slot is provided on the front of the self-lubricating device, with a glass lubricating oil observation panel being sealed and fixed to the observation slot. The remaining lubricating oil can be observed through the glass lubricating oil observation panel for timely replenishment, thereby achieving real-time monitoring of the remaining lubricating oil and quickly replenishing it when the lubricating oil level is low, thereby avoiding increased equipment wear or potential mechanical failure due to oil shortage, extending the service life of the equipment, maintaining the stability and safety of equipment operation, reducing downtime due to equipment failure, and improving overall work efficiency.
[0010] Preferably, the back of the self-lubricating device is connected to a refueling pipe, the oil inlet end of the refueling pipe is connected to an oil inlet, and the refueling pipe is inclined downward. When the lubricating oil is insufficient, lubricating oil can be added through the oil inlet, achieving the effect of conveniently adding lubricating oil.
[0011] Preferably, the surface of the take-up wheel is provided with anti-skid patterns, which prevent the steel cable from slipping on the take-up wheel, thereby significantly increasing the tension of the steel cable and effectively preventing the steel cable from slipping.
[0012] Beneficial effects
[0013] 1. In the prior art, four-girder cast bridge cranes do not have a self-lubricating function for the steel cables. This may cause severe wear of the steel cables during long-term use, affecting the stability and safety of the equipment. Due to the lack of effective lubrication of the steel cables during the load-bearing and winding processes, friction between the steel cables is easily increased, thereby generating excessive heat and wear. This not only shortens the service life of the steel cables, but also causes serious safety accidents due to sudden breakage of the steel cables. In addition, the steel cables lacking self-lubricating function require regular manual inspection and maintenance, increasing operating costs. To address such problems, the present invention adopts a steel cable self-lubricating structure to effectively avoid excessive wear of the steel cables during long-term use, ensure the stability and safety of equipment operation, reduce friction during the load-bearing and winding processes, significantly reduce overheating and wear caused by friction, extend the service life of the steel cables, reduce the risk of serious safety accidents caused by sudden breakage of the steel cables, reduce dependence on regular manual inspection and maintenance, save maintenance costs for operators, improve the overall efficiency and reliability of lifting operations, and make equipment management more convenient and economical.
[0014] 2. In the prior art, the wire rope taking-up structure of the four-girder cast bridge crane lacks the key reciprocating cycloid structure. This design deficiency makes it impossible for the steel rope to remain neat and orderly when it is rewound onto the take-up wheel. Due to the lack of a mechanism to control the uniform arrangement of the steel rope, the steel rope is unevenly wound, and there are crosses or tangled lines. This not only reduces the operating efficiency, but also causes additional friction damage during the wire rope taking-up and releasing process, increases the difficulty of operation, and poses a potential threat to the stable operation and safety of the crane. To address such problems, the utility model adopts a reciprocating guide take-up structure to ensure that the steel rope remains neat and orderly when it is rewound onto the take-up wheel, significantly improving the operating efficiency and the stability of the equipment operation, avoiding the occurrence of uneven winding, crosses or tangled lines of the steel rope, reducing friction damage, extending the service life of the steel rope, and reducing the difficulty of operation, thereby enhancing the safety performance of the crane, avoiding potential safety risks, and providing safer and more reliable working conditions for operators and equipment.
[0015] 3. In the prior art, since the four-girder casting bridge crane adopts a direct vertical steel cable structure for lifting operations, this design often leads to unnecessary shaking during the lifting process. The direct vertical steel cable lacks effective lateral restraint when subjected to force, and is prone to swinging when heavy objects are lifted or positioned. This not only reduces the operating efficiency, but also increases the safety risks during the operation. To address such problems, the utility model adopts a lateral restraint structure to significantly improve the efficiency and safety of lifting operations, reduce the swing when heavy objects are lifted or positioned, reduce the safety risks caused by steel cable shaking, and improve the operational stability of the crane, thereby ensuring the smooth progress of the operation process and providing solid technical support for ensuring the safety of operators and equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the self-lubricating structure of the utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the reciprocating wire-receiving structure of the present invention;
[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the self-lubricating oil pipeline of the utility model;
[0021] Figure 6 This is a schematic diagram of the three-dimensional structure inside the self-lubricating structure of the utility model;
[0022] Figure 7 for Figure 6 Enlarged view of point B in the middle.
[0023] Legend:
[0024] 1. Lifting bridge; 2. Lifting bridge; 3. Workbench; 301. Driving brake device; 302. Lubricating oil level observation window; 303. Guide support seat; 304. Horizontal guide shaft; 305. Horizontal guide wheel; 306. Vertical guide shaft; 307. Vertical guide wheel; 308. Wire take-up support seat; 309. Wire take-up shaft; 310. Wire take-up wheel; 312. Wire management support seat; 313. Wire management sliding shaft; 314. First screw rod; 315. Wire management seat; 3 17. First motor; 4. Self-lubricating device; 401. Glass lubricating oil observation panel; 402. Oil spray shower; 403. Oil spray pipe; 404. Oil filling pipe; 405. Oil inlet; 406. Lubricating oil storage chamber; 407. Oil seepage port; 408. Recovery plate; 409. Circular groove; 410. External fixing plate; 411. Second screw; 412. Extrusion sliding shaft; 413. Extrusion seat; 414. Oil-absorbing sponge; 415. Limit seat; 416. Second motor. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.
[0026] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment:
[0028] Reference Figure 1-7 The four-beam casting bridge crane with self-lubricating function of steel cable comprises a lifting bridge 1, a lifting bridge 2 is slidably connected to the top of the lifting bridge 1, a work platform 3 is slidably connected to the top of the lifting bridge 2, a driving brake device 301 is fixed on the top of the work platform 3, a wire-receiving shaft 309 is fixed on the driving end of the driving brake device 301, a wire-receiving shaft 309 is rotatably connected to a wire-receiving support seat 308 on the surface of the wire-receiving shaft 309, the wire-receiving support seat 308 is fixed on the top of the work platform 3, and a wire-receiving wheel 31 is fixed on the surface of the wire-receiving shaft 309. 0, a self-lubricating device 4 is fixed on the top of the workbench 3, and a lubricating oil storage chamber 406 is provided inside the self-lubricating device 4. A recovery plate 408 is fixed on the top of the lubricating oil storage chamber 406, and a circular groove 409 is opened from the top to the bottom of the recovery plate 408. An oil spray shower 402 is fixed on the top of the self-lubricating device 4, and the top of the oil spray shower 402 is connected to an oil spray pipe 403. The oil inlet end of the oil spray pipe 403 is connected to an oil pump, which is a submersible pump and is arranged inside the lubricating oil storage chamber 406. Prior art four-girder cast bridge cranes lack a self-lubricating steel cable. This can lead to severe wear of the cables over long periods of use, impacting the stability and safety of the equipment. The lack of effective lubrication during load-bearing and winding can easily lead to increased friction between the cables, resulting in excessive heat and wear. This not only shortens the service life of the cables but can also cause serious safety incidents due to sudden breakage. Furthermore, the lack of self-lubricating steel cables requires regular manual inspection and maintenance, increasing operating costs. To address these issues, the present invention utilizes a self-lubricating steel cable structure. When lubrication is required, an oil pump located within the lubricant storage chamber is activated, spraying lubricant onto the cable surface via an oil sprayer. After spraying, a recovery plate located at the bottom of the cable is used to recycle the lubricant. It effectively avoids excessive wear of the steel rope during long-term use, ensures the stability and safety of equipment operation, reduces friction during load and winding, significantly reduces overheating and wear caused by friction, extends the service life of the steel rope, reduces the risk of serious safety accidents caused by sudden breakage of the steel rope, significantly improves the recycling of lubricating oil, achieves lubrication effect, and reduces dependence on regular manual inspection and maintenance, saving maintenance costs for operators, improving the overall efficiency and reliability of lifting operations, and making equipment management more convenient and economical.
[0029] A cable management support seat 312 is fixed on the top of the workbench 3, and a cable management sliding shaft 313 is fixed through the front to the back of the cable management support seat 312. A first screw rod 314 is rotatably connected to the cable management support seat 312 from the front to the back. The surface of the first screw rod 314 is threadedly connected to the cable management seat 315. A cable opening is opened from one side to the other side of the cable management seat 315. The cable management seat 315 is slidably connected to the cable management sliding shaft 313. The first screw rod 314 is driven to rotate by the first motor 317, and the first motor 317 is fixed to the front of the workbench 3. In the prior art, the wire-reeling structure of the four-girder cast bridge crane lacks a key reciprocating cycloid structure. This design deficiency results in the inability of the steel cable to remain neat and orderly when it is rewound onto the take-up wheel. Due to the lack of a mechanism to control the uniform arrangement of the steel cables, the steel cables are unevenly wound, and crosses or tangles occur. This not only reduces operating efficiency, but also causes additional friction damage during the wire-reeling and retracting process, increases the difficulty of operation, and poses a potential threat to the stable operation and safety of the crane. To address such problems, the utility model adopts a reciprocating guided wire-reeling structure. During the wire-reeling operation of the four-girder cast bridge crane, the first motor is started to drive the first screw rod, thereby prompting the wire-straightening seat to perform reciprocating motion, so as to ensure that the steel cables remain neat and orderly when they are rewound onto the take-up wheel, significantly improving operating efficiency and the stability of equipment operation, avoiding uneven winding, crosses or tangles of the steel cables, reducing friction damage, extending the service life of the steel cables, and reducing operating difficulty, thereby enhancing the safety performance of the crane, avoiding potential safety risks, and providing safer and more reliable working conditions for operators and equipment.
[0030] A guide support seat 303 is fixed on the top of the workbench 3, and a horizontal guide shaft 304 is rotatably connected to one side of the guide support seat 303. A horizontal guide wheel 305 is fixed on the surface of the horizontal guide shaft 304. A vertical guide shaft 306 is rotatably connected to the inner wall of the workbench 3, and a vertical guide wheel 307 is fixed on the surface of the vertical guide shaft 306. In the existing technology, since the four-girder casting bridge crane adopts a direct vertical steel cable structure for lifting operations, this design often leads to unnecessary shaking during the lifting process. The direct vertical steel cable lacks effective lateral restraint when subjected to force, and is prone to swinging when lifting or positioning heavy objects. This not only reduces the operating efficiency, but also increases the safety risks during operation. To address this problem, the utility model adopts a lateral restraint structure. When the four-girder casting bridge crane is operating, the shaking of the steel cable is effectively controlled. By adopting a horizontal guide wheel, the swing of the steel cable in the vertical direction is limited to ensure a smooth lifting process. At the same time, the setting of the vertical guide wheel further restrains the shaking in the same direction as the horizontal guide wheel, thereby significantly improving the efficiency and safety of the lifting operation, reducing the swing when lifting or positioning heavy objects, reducing the safety risks caused by the shaking of the steel cable, and improving the operational stability of the crane, ensuring the smooth progress of the operation process, and providing solid technical support for ensuring the safety of operators and equipment. An outer fixing plate 410 is fixed to the back of the self-lubricating device 4. A second screw rod 411 and an extrusion sliding shaft 412 are rotatably connected from the back to the front of the outer fixing plate 410. The second screw rod 411 is rotatably connected to the inner wall of the self-lubricating device 4. Extrusion seats 413 are threadedly connected at both ends of the second screw rod 411. An oil-absorbing sponge 414 is bonded between the two extrusion seats 413. The two extrusion seats 413 have opposite threads. Driven by the second screw rod 411, the two extrusion seats 413 move toward or against each other. An oil seepage port 407 is formed through one side of the lubricating oil storage chamber 406. The extrusion seat 413 is slidably connected to the extrusion sliding shaft 412. A limit seat 415 is fixed to the inner wall of the self-lubricating device 4. The second screw rod 411 is driven to rotate by a second motor 416, which is fixed to the back of the outer fixing plate 410. When the steel cable passes over the oil-absorbing sponge, the lubricating oil attached to its surface is absorbed into the oil-absorbing sponge. Once the oil-absorbing sponge reaches saturation, the second motor activates to drive the second screw, which in turn pushes the extrusion seat to squeeze the sponge. This allows the lubricating oil squeezed from the sponge to flow back through the oil seepage port into the lubricating oil storage chamber, further promoting lubricating oil recycling. Once extrusion is complete, the second motor is activated again to return the extrusion seat to its original position, allowing the sponge to resume its absorption process. This effectively reduces environmental pollution caused by oil spills, prevents slips and falls caused by oil spills, keeps the wire rope clean, and extends its service life, ensuring safe crane operation and reducing maintenance costs.
[0031] A lubricating oil observation window 302 is provided through the front of the workbench 3. An observation slot is provided on the front of the self-lubricating device 4, with a glass lubricating oil observation panel 401 sealed and fixed to the slot. The glass lubricating oil observation panel allows the remaining lubricating oil to be observed and replenished promptly, enabling real-time monitoring of the remaining lubricating oil. This allows for rapid replenishment when the lubricating oil level is low, preventing increased equipment wear and potential mechanical failures caused by oil shortages. This extends the equipment's service life, maintains operational stability and safety, reduces downtime due to equipment failure, and improves overall work efficiency. A refueling pipe 404 is connected to the back of the self-lubricating device 4. The oil inlet end of the refueling pipe 404 is connected to an oil inlet 405, which is angled downward. When the lubricating oil level is low, lubricating oil can be added through the oil inlet 405, making it convenient to add lubricating oil. The surface of the take-up reel 310 is provided with anti-slip grooves. These anti-slip grooves prevent the wire rope from slipping on the reel, significantly increasing the wire rope tension and effectively preventing it from slipping.
[0032] The working principle of the present invention is as follows: in the operation process of the four-beam casting bridge crane, the efficient management and maintenance of the steel cable lubrication system is of vital importance. By starting the oil pump located in the lubricating oil storage chamber 406, the surface of the steel cable is sprayed with lubricant through the oil spraying nozzle 402, and then the lubricating oil is recycled by using the recovery plate 408. The steel cable passes through the oil-absorbing sponge 414, and the lubricating oil attached to its surface is absorbed, thereby extending the service life of the steel cable and the equipment. When the oil-absorbing sponge is saturated, the second motor 416 is started to drive the second screw rod 415, which pushes the extrusion seat 413 to pump the oil-absorbing sponge. The oil is squeezed so that it flows back to the storage chamber 406 through the oil seepage port 407, thereby realizing the recycling of the lubricating oil. During the wire-winding operation, the first motor 317 drives the first screw rod 314 to make the wire-straightening seat 315 move back and forth, ensuring that the steel cables are evenly arranged on the wire-winding wheel 310. The shaking of the steel cables is effectively controlled by the horizontal guide wheel 305 and the vertical guide wheel 307 to improve the lifting stability. The remaining amount of lubricating oil is monitored through the glass lubricating oil observation plate 401 and replenished in time. The anti-skid texture on the surface of the wire-winding wheel 310 prevents the steel cables from slipping. The trapezoidal structure at the bottom of the lifting bridge 1 enhances the overall stability.
[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A four-beam casting bridge crane with a self-lubricating steel cable function, comprising a lifting bridge (1), wherein the top of the lifting bridge (1) is slidably connected to a lifting bridge (2), the top of the lifting bridge (2) is slidably connected to a workbench (3), a driving brake device (301) is fixed to the top of the workbench (3), a wire-receiving shaft (309) is fixed to the driving end of the driving brake device (301), a surface of the wire-receiving shaft (309) is rotatably connected to a wire-receiving support seat (308), the wire-receiving support seat (308) is fixed to the top of the workbench (3), and a wire-receiving wheel (310) is fixed to the surface of the wire-receiving shaft (309), characterized in that: A self-lubricating device (4) is fixed on the top of the workbench (3), a lubricating oil storage chamber (406) is provided inside the self-lubricating device (4), a recovery plate (408) is fixed on the top of the lubricating oil storage chamber (406), a circular groove (409) is provided from the top to the bottom of the recovery plate (408), an oil spray shower (402) is fixed on the top of the self-lubricating device (4), the top of the oil spray shower (402) is connected to an oil spray pipe (403), the oil inlet end of the oil spray pipe (403) is connected to an oil pump, the oil pump is a submersible pump, and the oil pump is provided inside the lubricating oil storage chamber (406).
2. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: A cable management support seat (312) is fixed on the top of the workbench (3); a cable management sliding shaft (313) is fixedly passed through the front and back of the cable management support seat (312); a first screw rod (314) is passed through the front and back of the cable management support seat (312) and is rotatably connected; the surface of the first screw rod (314) is threadedly connected to the cable management seat (315); a cable opening is passed through from one side to the other side of the cable management seat (315); the cable management seat (315) is slidably connected to the cable management sliding shaft (313); the first screw rod (314) is driven to rotate by a first motor (317); and the first motor (317) is fixed to the front of the workbench (3).
3. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: A guide support seat (303) is fixed on the top of the workbench (3); a horizontal guide shaft (304) is rotatably connected to one side of the guide support seat (303); a horizontal guide wheel (305) is fixed on the surface of the horizontal guide shaft (304); a vertical guide shaft (306) is rotatably connected to the inner wall of the workbench (3); a vertical guide wheel (307) is fixed on the surface of the vertical guide shaft (306).
4. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: The back of the self-lubricating device (4) is fixed with an external fixing plate (410), and the back to the front of the external fixing plate (410) is rotatably connected to a second screw rod (411) and an extrusion sliding shaft (412), the second screw rod (411) is rotatably connected to the inner wall of the self-lubricating device (4), and both ends of the second screw rod (411) are threadedly connected to an extrusion seat (413), and an oil-absorbing sponge (414) is bonded between the two extrusion seats (413), and the threads of the two extrusion seats (413) are opposite. The two extrusion seats (413) move toward or in opposite directions under the drive of the second screw rod (411), an oil seepage port (407) is provided through one side of the lubricating oil storage chamber (406), the extrusion seat (413) is slidably connected to the extrusion sliding shaft (412), a limiting seat (415) is fixed on the inner wall of the self-lubricating device (4), the second screw rod (411) is driven to rotate by a second motor (416), and the second motor (416) is fixed to the back of the outer fixed plate (410).
5. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: A lubricating oil quantity observation window (302) is provided through the front of the workbench (3), and an observation groove is provided on the front of the self-lubricating device (4). A glass lubricating oil observation plate (401) is sealed and fixed to the observation groove.
6. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: The back of the self-lubricating device (4) is connected to a refueling pipe (404), the oil inlet end of the refueling pipe (404) is connected to an oil inlet (405), and the refueling pipe (404) is inclined downward.
7. The four-girder casting bridge crane with self-lubricating steel cable function according to claim 1, characterized in that: The surface of the take-up wheel (310) is provided with anti-skid patterns.