Marine hoisting motor shaft lubricating device
By designing the motor drive shaft, bearings, and lubrication components, the problem of insufficient lubrication of marine crane motor shafts was solved, and automated management of lubricating oil was achieved, ensuring the continuous operation of the motor shaft and the safety of the equipment.
Patent Information
- Application Number
- CN202423160558.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The existing marine crane motor shafts cannot be lubricated in a timely manner during operation, and the lubricating oil cannot be changed regularly, which leads to the motor shaft temperature rising and easy damage.
The design includes an electric motor drive shaft, bearings, and lubrication components, including a bearing housing, oil tank, oil guide hole, connecting pipe, and collection tank. The timely injection and collection of lubricating oil are achieved through electromagnetic valves and controllers, and the periodic injection of lubricating oil is automatically controlled by an oil control component.
This enables timely lubrication and oil replacement of marine electric motor shafts, protecting the continuous operation of the motor shafts, reducing the risk of equipment damage, and lowering labor costs.
Smart Images
Figure CN223511883U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lubrication device technology, specifically relating to a lubrication device for the shaft of a marine crane motor. Background Technology
[0002] Marine crane motors and metallurgical variable frequency speed control motors are squirrel-cage rotor motors, which combine the advantages of traditional crane and metallurgical motors with those of variable frequency motors. This allows the motor to not only meet the needs of frequent starting, braking, overload, reversal, overspeed, impact, and vibration work, but also meet the needs of operation under frequency converter control, achieving soft start and four-quadrant operation, thereby reducing the impact on equipment and saving energy. However, the existing marine crane motor shafts cannot be lubricated in time during operation, and the lubricating oil cannot be replaced regularly, resulting in increased motor shaft temperature and easy damage. Therefore, we propose a marine crane motor shaft lubrication device. Utility Model Content
[0003] The purpose of this utility model is to provide a lubrication device for the shaft of a marine crane motor. By designing the motor drive shaft, bearings, and lubrication components, the shaft of the marine crane motor can be lubricated in a timely manner during operation. At the same time, the lubricating oil can be replaced and collected in a timely manner, effectively protecting the motor shaft so that it can continue to operate and is not easily damaged. The overall structure is simple and practical.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a lubrication device for a marine crane motor shaft, comprising a motor drive shaft, a bearing connected to the outer surface of the motor drive shaft, a lubrication assembly disposed on the outer side of the bearing, the lubrication assembly comprising a bearing protective shell located on the outer side of the bearing, an oil filling tank disposed at the top of the bearing protective shell, an oil filling port opened at the middle of the top of the oil filling tank, an oil guide hole opened on the top surface of the bearing protective shell, the oil guide hole communicating with the interior of the oil filling tank, an oil drain hole opened at the middle of the bottom surface of the bearing protective shell, a connecting pipe connected to the bottom of the bearing protective shell, a first electromagnetic valve disposed on the outer surface of the connecting pipe, and a collection tank connected to the bottom of the connecting pipe, and a first controller disposed on the side of the bearing protective shell, the first controller being electrically connected to the first electromagnetic valve.
[0005] Preferably, it also includes an oil control component, which includes an oil injection pipe located inside the oil injection port, an oil storage tank connected to the top of the oil injection pipe, a second solenoid valve provided on the outside of the oil injection pipe, and a second controller provided on the side of the oil injection tank, the second controller being electrically connected to the second solenoid valve.
[0006] Preferably, there are four oil guide holes, and all four oil guide holes are located above the bearing.
[0007] Preferably, an oil drain pipe is provided at the bottom of one side of the collection tank, and a control valve is provided on the surface of the oil drain pipe.
[0008] Preferably, the oil storage tank is made of plastic.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. By designing the motor drive shaft, bearings, and lubrication components, the marine motor shaft can be lubricated in a timely manner during operation. At the same time, the lubricating oil can be replaced and collected in a timely manner, effectively protecting the motor shaft so that it can continue to operate without being easily damaged. The overall structure is simple and practical.
[0011] 2. By designing an oil control component, the second controller can periodically inject the lubricating oil stored in the oil reservoir into the oil filling tank through the oil injection pipe and the second solenoid valve, based on pre-entered instructions. This is more automated and effectively reduces labor costs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of one embodiment of the present invention;
[0013] Figure 2 This is a side view of the structure of this utility model;
[0014] Figure 3 This is a three-dimensional structural diagram of the collection tank of this utility model;
[0015] The components are: 1. Motor drive shaft; 2. Bearing; 3. Bearing protective shell; 4. Oil tank; 5. Oil inlet; 6. Oil guide hole; 7. Oil drain hole; 8. Connecting pipe; 9. Collection tank; 10. First solenoid valve; 11. First controller; 12. Oil drain pipe; 13. Oil storage tank; 14. Oil inlet pipe; 15. Second solenoid valve; 16. Second controller. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1 , Figure 2 , Figure 3This utility model provides a technical solution: a lubrication device for a marine crane motor shaft, including a motor drive shaft 1, a bearing 2 connected to the outer surface of the motor drive shaft 1, a lubrication assembly disposed on the outer side of the bearing 2, the lubrication assembly including a bearing protective shell 3 located outside the bearing 2, an oil filling tank 4 disposed at the top of the bearing protective shell 3, an oil filling port 5 opened at the middle of the top of the oil filling tank 4, an oil guide hole 6 opened on the top surface of the bearing protective shell 3, the oil guide hole 6 communicating with the interior of the oil filling tank 4, and an oil drain hole 7 opened at the middle of the bottom surface of the bearing protective shell 3. The bottom of the protective shell 3 is also connected to a connecting pipe 8. A first solenoid valve 10 is provided on the outer surface of the connecting pipe 8, and a collection tank 9 is connected to the bottom of the connecting pipe 8. A first controller 11 is also provided on the side of the bearing protective shell 3. The first controller 11 is electrically connected to the first solenoid valve 10. There are four oil guide holes 6, and all four oil guide holes 6 are located above the bearing 2. When the lubricating oil flows downward from the inside of the oil guide holes 6, the lubricating oil can make full contact with the bearing 2 more quickly. An oil drain pipe 12 is provided on the bottom side of the collection tank 9. 2. A control valve is provided on the surface. When a certain amount of lubricating oil is collected inside the collection tank 9, it is convenient for personnel to remove the used lubricating oil. During use, personnel inject lubricating oil into the oil tank 4 through the oil inlet 5. Then, the lubricating oil enters the cavity formed by the motor drive shaft 1, bearing 2, and bearing protective shell 3 through the oil guide hole 6, so that the lubricating oil can fully contact the bearing 2 and lubricate the bearing 2. After the lubricating oil has been used for a period of time, the first controller 11, which has been programmed in advance, controls the first solenoid valve 10 to open. Then, the used lubricating oil flows into the collection tank 9 through the connecting pipe 8 and is collected. In the existing marine crane motor shaft, the lubricating oil cannot be lubricated in time during operation and cannot be replaced regularly, which leads to the motor shaft temperature rising and easy damage. By designing the motor drive shaft 1, bearing 2, and lubrication components, the marine motor shaft can be lubricated in time during operation. At the same time, the lubricating oil can be replaced and collected in time, effectively protecting the motor shaft so that it can continue to operate and is not easily damaged. The overall structure is simple and practical.
[0018] In this embodiment, preferably, please refer to... Figure 1 , Figure 2As shown, it also includes an oil control component, which includes an oil injection pipe 14 located inside the oil injection port 5. The top of the oil injection pipe 14 is connected to an oil storage tank 13. A second solenoid valve 15 is provided on the outside of the oil injection pipe 14, and a second controller 16 is provided on the side of the oil storage tank 4. The second controller 16 is electrically connected to the second solenoid valve 15. The oil storage tank 13 is made of plastic, saving on material costs. By designing the oil control component, the second controller 16 can periodically inject the lubricating oil stored in the oil storage tank 13 into the oil storage tank 4 through the action of the oil injection pipe 14 and the second solenoid valve 15 under pre-entered instructions, making it more automated and effectively reducing labor costs.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lubrication device for a marine crane motor shaft, comprising a motor drive shaft (1), wherein a bearing (2) is connected to the outer surface of the motor drive shaft (1), and a lubrication assembly is provided on the outer side of the bearing (2), characterized in that: The lubrication assembly includes a bearing protective shell (3) located outside the bearing (2), an oil filling tank (4) is provided at the top of the bearing protective shell (3), an oil filling port (5) is provided at the middle of the top of the oil filling tank (4), an oil guide hole (6) is provided on the top surface of the bearing protective shell (3), the oil guide hole (6) is connected to the inside of the oil filling tank (4), an oil drain hole (7) is provided at the middle of the bottom surface of the bearing protective shell (3), a connecting pipe (8) is also connected to the bottom of the bearing protective shell (3), a first electromagnetic valve (10) is provided on the outer surface of the connecting pipe (8), and a collection tank (9) is connected to the bottom of the connecting pipe (8), and a first controller (11) is also provided on the side of the bearing protective shell (3), the first controller (11) is electrically connected to the first electromagnetic valve (10).
2. The marine crane motor shaft lubrication device according to claim 1, characterized in that: It also includes an oil control component, which includes an oil injection pipe (14) located inside the oil injection port (5), an oil storage tank (13) connected to the top of the oil injection pipe (14), a second solenoid valve (15) provided on the outside of the oil injection pipe (14), and a second controller (16) provided on the side of the oil injection tank (4), the second controller (16) being electrically connected to the second solenoid valve (15).
3. The marine crane motor shaft lubrication device according to claim 1, characterized in that: There are a total of four oil guide holes (6), and all four oil guide holes (6) are located above the bearing (2).
4. The marine crane motor shaft lubrication device according to claim 1, characterized in that: An oil drain pipe (12) is provided at the bottom of one side of the collection tank (9), and a control valve is provided on the surface of the oil drain pipe (12).
5. A marine crane motor shaft lubrication device according to claim 2, characterized in that: The oil storage tank (13) is made of plastic.