A wear-resistant device for ship hydraulic cranes
The structure of support rollers and cleaning brushes solves the problem of cable wear, realizes rolling friction protection of cables and centralized collection of debris, and extends the service life of cables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MINGGUANG TIANYUN SHIPBUILDING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
AI Technical Summary
In the prior art, during long-term use, the friction between the cable and the guide wheel increases due to rust or the adhesion of debris in the environment, which affects the service life of the cable.
The system employs a support roller and a cleaning brush structure. The support roller rotates circumferentially via a rotating shaft to achieve rolling friction and protect the cable. The cleaning brush scrapes away debris from the outer wall of the cable. The debris is collected centrally through a drain trough and a collection cover to prevent increased friction.
It effectively reduces cable wear, ensures cable lifespan, keeps cable surfaces clean, and prevents secondary contamination from debris.
Smart Images
Figure CN224430029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic crane technology, specifically to a wear-resistant device for marine hydraulic cranes. Background Technology
[0002] Marine hydraulic cranes convert the mechanical energy of an electric motor or diesel engine into the pressure energy of a liquid through a power element, the oil pump. Hydraulic oil serves as the working medium, transferring energy within the system. Then, the actuators (cylinders or hydraulic motors) convert the hydraulic energy of the liquid back into mechanical energy, enabling various crane actions. For example, the cylinders perform linear extension and retraction to extend or reduce the boom's amplitude, while the hydraulic motors perform rotational motion to slew the boom. In conjunction with an AC motor, the cable reel is driven to rotate, and the cable can be wound up or down by controlling the reel's forward and reverse rotation. The cable winding and unwinding can then be applied to the hook, enabling the lifting of cargo at the designated location.
[0003] While existing cranes offer numerous advantages during use, they still suffer from the following problems: over time, cables may rust or accumulate debris in the environment, leading to a buildup of contaminants on the contact surface between the cable and the guide wheel. This increases friction between the cable and the guide wheel, resulting in increased wear and tear on the cable and affecting its lifespan. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a wear-resistant device for marine hydraulic cranes.
[0005] The technical solution adopted by this utility model to solve its technical problem is a wear-resistant device for a marine hydraulic crane, including a support base, a fixed base, a rotating shaft, and a support roller. A telescopic arm is connected to the inside of the support base by a pin. A cable guide is installed at the end of the telescopic arm. A fixed base is screwed to one side of the upper outer wall of the telescopic arm. A support rod is screwed to one side of the inner wall of the fixed base. A rotating shaft is rotatably installed on one side of the inner wall of the fixed base. Bearings are interference-fitted to the outer walls of both sides of the rotating shaft. A collection cover is interference-fitted to the outer ring of the bearing. A support roller is provided on the outside of the collection cover. A circular array of sewage discharge grooves is opened on the outer wall of the support roller.
[0006] By adopting the above technical solution, the telescopic arm can be extended or retracted through the matching hydraulic device to adjust the position of the cable guide. The support roller and cable guide can guide and support the cable, ensuring that the movement trajectory of the cable is controlled and adapting to the cable guidance requirements in different working scenarios. The support roller can rotate circumferentially through the rotating shaft, thereby enabling rolling friction between the cable and the support roller to protect the cable. During the movement of the cable, the cleaning brush can scrape and clean the debris on the outer wall of the cable, ensuring the cleanliness of the cable surface and preventing debris from increasing the friction between the cable and the support tube, effectively reducing cable wear and ensuring the service life of the cable. The debris that falls off can fall into the collection hood through the sewage trough for centralized collection, which is convenient for subsequent centralized collection.
[0007] Specifically, a hydraulic rod is rotatably mounted on one side of the inner wall of the support base, and the upper end of the hydraulic rod is connected to the lower outer wall of the telescopic arm by a pin.
[0008] By adopting the above technical solution, the push rod part of the hydraulic rod can push the telescopic arm to adjust the angle, thereby adjusting the lifting angle of the telescopic arm, which can be used in conjunction with cables and hooks to lift goods.
[0009] Specifically, a support arm is welded to one side of the outer wall of the support rod, and a wiring hole is opened at the lower end of the outer wall of the support arm. A circular array of cleaning brushes is bonded and fixed to the inner wall of the wiring hole.
[0010] By adopting the above technical solutions, the support rod and support arm can ensure the stability of their position inside the fixed base, while the cable routing hole can restrict the movement trajectory of the cable, ensuring that the movement trajectory of the cable is controlled. Furthermore, when the cable moves inside the cable routing hole, the cleaning brush can remove debris from the outer wall of the cable, ensuring the cleanliness of the cable.
[0011] Specifically, the outer walls on both sides of the fixing base are provided with discharge ports, the lower end of the inner wall of the discharge port is designed with an inclined shape, the outer walls on both sides of the fixing base are screwed with collection boxes, the collection boxes are corresponding to the positions of the discharge ports, and the outer walls on both sides of the collection cover are provided with sewage holes, the sewage holes are corresponding to the positions of the discharge ports.
[0012] By adopting the above technical solution, the collection hood, drain hole, outlet and collection box form a complete debris discharge path. The debris inside the collection hood can be discharged to the outlet through the drain hole, and the debris can slide into the collection box at an inclined angle for centralized collection, avoiding secondary pollution caused by debris.
[0013] Specifically, connecting blocks are symmetrically arranged on both sides of the inner wall of the support roller, and fixing bolts are symmetrically and movably installed on both sides of the outer wall of the support roller. The fixing bolts pass through the connecting blocks and are threaded into the inside of the rotating shaft.
[0014] By adopting the above technical solution, the fixing bolts and connecting blocks can connect the support roller and the rotating shaft, ensuring that the support roller is stably positioned outside the rotating shaft and the collection cover, and facilitating the assembly or disassembly of the support roller by the staff, thus ensuring the efficiency of the assembly and disassembly of the support pipe.
[0015] Specifically, the outer wall of the rotating shaft is screwed with a spiral blade, which is located inside the collection hood and does not contact the inner wall of the collection hood.
[0016] By adopting the above technical solution, when the cable moves outside the support roller, the cable will drive the collecting roller and the rotating shaft to rotate in a circular motion, and carry the spiral blades to rotate inside the collecting hood. The rotation of the spiral blades can push the debris inside the collecting hood to move until the debris is discharged through the drain hole, thus achieving the purpose of automatically pushing out the debris. Since the national standard has a standard for the cable winding or unwinding speed, which is ≤20m / min, the presence of the bearing can ensure that when the rotating shaft and the support roller rotate, the collecting hood can maintain a relatively stable position based on its own weight and will not rotate with the rotating shaft.
[0017] Specifically, sealing rings are bonded and fixed to the outer walls on both sides of the support roller, and the sealing rings are in contact with the inner wall of the fixed seat.
[0018] By adopting the above technical solution, the sealing ring is designed with polytetrafluoroethylene material, and the sealing ring can achieve the sealing between the support roller and the fixed seat, so that the debris discharged through the drain hole can be collected to the discharge outlet.
[0019] The beneficial effects of this utility model are:
[0020] The wear-resistant device for a marine hydraulic crane described in this utility model includes a cleaning brush that can scrape and clean debris from the outer wall of the cable, ensuring the cleanliness of the cable surface, preventing debris from increasing the friction between the cable and the support pipe, effectively reducing cable wear, and ensuring the service life of the cable.
[0021] The wear-resistant device for a ship hydraulic crane described in this utility model allows detached debris to fall into a collection hood through a drain trough for centralized collection, facilitating subsequent collection and preventing secondary pollution caused by the debris. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a schematic diagram of the main body of the support structure of this utility model;
[0024] Figure 2 This is an exploded view of the fixing base structure of this utility model;
[0025] Figure 3 This is a partially enlarged schematic diagram of the support arm structure of this utility model;
[0026] Figure 4 This is an exploded view of the rotating shaft structure of this utility model;
[0027] Figure 5 This is an exploded view of the collection cover structure of this utility model.
[0028] In the diagram: 1. Support base; 11. Telescopic arm; 12. Hydraulic rod; 13. Cable guide; 2. Fixed base; 21. Discharge port; 22. Collection box; 23. Support rod; 24. Support arm; 25. Cleaning brush; 3. Rotary shaft; 31. Spiral blade; 32. Bearing; 33. Collection cover; 34. Drain hole; 4. Support roller; 41. Drain trough; 42. Sealing ring; 43. Connecting block; 44. Bolt. Detailed Implementation
[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the wear-resistant device for a ship hydraulic crane of this utility model includes a support base 1, a fixed base 2, a rotating shaft 3, and a support roller 4. A telescopic arm 11 is connected to the inside of the support base 1 by a pin. A cable guide 13 is installed at the end of the telescopic arm 11. The fixed base 2 is screwed to one side of the upper outer wall of the telescopic arm 11. A support rod 23 is screwed to one side of the inner wall of the fixed base 2. The rotating shaft 3 is rotatably installed on one side of the inner wall of the fixed base 2. Bearings 32 are interference-fitted to the outer walls of both sides of the rotating shaft 3. A collection cover 33 is interference-fitted to the outer ring of the bearing 32. A support roller 4 is provided on the outer side of the collection cover 33. A circular array of sewage troughs 41 are opened on the outer wall of the support roller 4.
[0031] During use, the telescopic arm 11 can be extended or retracted by the matching hydraulic device to adjust the position of the cable guide 13. The support roller 4 and the cable guide 13 can guide and support the cable, ensuring that the movement trajectory of the cable is controlled and can adapt to the cable guidance requirements in different working scenarios. The support roller 4 can rotate circumferentially through the rotating shaft 3, so that the cable and the support roller 4 can roll friction, protecting the cable. During the movement of the cable, the cleaning brush 25 can scrape and clean foreign objects on the outer wall of the cable, ensuring the cleanliness of the cable surface and preventing foreign objects from increasing the friction between the cable and the support tube, which can effectively reduce the wear of the cable and ensure the service life of the cable. The foreign objects that fall off can fall into the collection cover 33 through the sewage trough 41 for centralized collection, which is convenient for subsequent centralized collection.
[0032] For angle adjustment, for example, such as Figure 1 As shown, a hydraulic rod 12 is rotatably mounted on one side of the inner wall of the support base 1, and the upper end of the hydraulic rod 12 is connected to the lower end of the telescopic arm 11 by a pin.
[0033] In use, the push rod of the hydraulic rod 12 can push the telescopic arm 11 to adjust the angle, thereby adjusting the lifting angle of the telescopic arm 11, which can be used in conjunction with cables and hooks to lift goods.
[0034] For cleaning purposes, exemplified, such as Figure 3 As shown, a support arm 24 is welded to one side of the outer wall of the support rod 23. A wiring hole is opened at the lower end of the outer wall of the support arm 24. A cleaning brush 25 arranged in a circular array is bonded and fixed to the inner wall of the wiring hole.
[0035] During use, the support rod 23 and support arm 24 can ensure the stability of the position inside the fixed base 2, while the cable routing hole can restrict the movement trajectory of the cable, ensuring that the movement trajectory of the cable is controlled. When the cable moves inside the cable routing hole, the cleaning brush 25 can remove foreign objects from the outer wall of the cable, ensuring the cleanliness of the cable.
[0036] To remove impurities, for example, such as Figure 2 As shown, both sides of the outer wall of the fixing base 2 are provided with a drain outlet 21. The lower end of the inner wall of the drain outlet 21 is designed with an inclined shape. Both sides of the outer wall of the fixing base 2 are screwed with a collection box 22. The collection box 22 is corresponding to the position of the drain outlet 21. Both sides of the outer wall of the collection cover 33 are provided with a sewage discharge hole 34. The sewage discharge hole 34 is corresponding to the position of the drain outlet 21.
[0037] In use, the collection cover 33, the drain hole 34, the outlet 21 and the collection box 22 form a complete foreign matter discharge path. Foreign matter inside the collection cover 33 can be discharged to the outlet 21 through the drain hole 34, and foreign matter can slide into the collection box 22 at an angle of inclination, as shown in the figure, for centralized collection, so as to avoid secondary pollution caused by foreign matter.
[0038] To ensure connection strength, for example, such as Figure 4 As shown, connecting blocks 43 are symmetrically arranged on both sides of the inner wall of the support roller 4, and fixing bolts 44 are symmetrically and movably installed on both sides of the outer wall of the support roller 4. The fixing bolts 44 pass through the connecting blocks 43 and are threaded into the inside of the rotating shaft 3.
[0039] During use, the fixing bolts 44 and the connecting block 43 can connect the support roller 4 and the rotating shaft 3, ensuring that the support roller 4 is in a stable position outside the rotating shaft 3 and the collecting cover 33, and making it easy for workers to assemble or disassemble the support roller 4, thus ensuring the efficiency of the support tube assembly and disassembly.
[0040] For example, to push the material, such as Figure 5 As shown, a spiral blade 31 is screwed to the outer wall of the rotating shaft 3. The spiral blade 31 is located inside the collection cover 33 and does not contact the inner wall of the collection cover 33.
[0041] When in use, as the cable moves outside the support roller 4, the cable will drive the collecting roller and the rotating shaft 3 to rotate in a circular motion, and carry the spiral blade 31 to rotate inside the collecting cover 33. The rotation of the spiral blade 31 can push the foreign objects inside the collecting cover 33 to move until the foreign objects are discharged through the drain hole 34, thus achieving the purpose of automatically pushing out the foreign objects. Since the national standard has a standard for the cable winding or unwinding speed, which is ≤20m / min, the presence of the bearing 32 can ensure that when the rotating shaft 3 and the support roller 4 rotate, the collecting cover 33 can maintain a relatively stable position based on its own weight and will not rotate with the rotating shaft 3.
[0042] For sealing purposes, exemplarily, such as Figure 4 As shown, sealing rings 42 are bonded and fixed to both outer walls of the support roller 4, and the sealing rings 42 are in contact with the inner wall of the fixed seat 2.
[0043] When in use, the sealing ring 42 is made of polytetrafluoroethylene and can achieve a seal between the support roller 4 and the fixed seat 2, so that foreign matter discharged through the drain hole 34 can be collected at the discharge port 21.
[0044] In use, this utility model uses a hydraulic device to drive the telescopic arm 11 to extend or retract, adjusts the cable guide 13 to the target position, and adjusts the angle of the telescopic arm 11 through the hydraulic rod 12 according to the load weight and lifting height, so that the cable inside the cable guide 13 is aligned with the lifting point of the goods.
[0045] The cable is led out from the winding device and passes through the cable hole of the support arm 24, the support roller 4 and the cable guide 13 in sequence to form a controlled guiding path. When the cable moves, the support roller 4 rotates synchronously with the rotating shaft 3 through the bearing 32, which converts the sliding friction between the cable and the support roller 4 into rolling friction.
[0046] When the cable passes through the cable hole, the cleaning brush 25 scrapes off the mud, rust and other foreign objects on its surface. The fallen impurities fall directly into the collection hood 33. When the rotating shaft 3 rotates, it drives the spiral blades 31 to rotate synchronously, pushing the foreign objects in the collection hood 33 towards the drain hole 34. The foreign objects slide into the collection box 22 through the inclined channel of the discharge port 21. The staff can collect the foreign objects by disassembling the collection box 22.
[0047] It should be noted that this utility model is a wear-resistant device for a ship hydraulic crane. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wear-resistant device for a ship's hydraulic crane, characterized in that, The assembly includes a support base (1), a fixed base (2), a rotating shaft (3), and a support roller (4). The support base (1) is internally connected to a telescopic arm (11) by a pin. A cable guide (13) is installed at the end of the telescopic arm (11). A fixed base (2) is screwed to one side of the upper outer wall of the telescopic arm (11). A support rod (23) is screwed to one side of the inner wall of the fixed base (2). A rotating shaft (3) is rotatably installed on one side of the inner wall of the fixed base (2). Bearings (32) are interference-fitted to the outer walls of both sides of the rotating shaft (3). A collection cover (33) is interference-fitted to the outer ring of the bearing (32). A support roller (4) is provided on the outer side of the collection cover (33). A sewage trough (41) with a circular array is opened on the outer wall of the support roller (4).
2. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, A hydraulic rod (12) is rotatably mounted on one side of the inner wall of the support base (1), and the upper end of the hydraulic rod (12) is connected to the lower end of the telescopic arm (11) by a pin.
3. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, A support arm (24) is welded to one side of the outer wall of the support rod (23). A wiring hole is provided at the lower end of the outer wall of the support arm (24). A cleaning brush (25) arranged in a circular array is bonded and fixed to the inner wall of the wiring hole.
4. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, The fixing base (2) has outlets (21) on both outer walls. The lower end of the inner wall of the outlet (21) is designed with an inclined shape. The fixing base (2) has collection boxes (22) screwed to both outer walls. The collection boxes (22) are corresponding to the outlets (21). The collection cover (33) has drain holes (34) on both outer walls. The drain holes (34) are corresponding to the outlets (21).
5. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, The inner walls of the support roller (4) are symmetrically provided with connecting blocks (43) on both sides, and the outer walls of the support roller (4) are symmetrically and movably installed with fixing bolts (44). The fixing bolts (44) pass through the connecting blocks (43) and are threaded into the inside of the rotating shaft (3).
6. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, The outer wall of the rotating shaft (3) is screwed with a spiral blade (31), which is located inside the collection cover (33) and does not contact the inner wall of the collection cover (33).
7. The anti-wear device for a ship hydraulic crane according to claim 1, characterized in that, The outer walls of both sides of the support roller (4) are bonded with sealing rings (42), and the sealing rings (42) are in contact with the inner wall of the fixed seat (2).