High-power high-efficiency hydraulic motor of windlass
By using a housing and base plate to enclose the inlet and outlet pipes in the anchor winch hydraulic motor, and by utilizing reinforcing blocks and sealing structures, the problem of easy corrosion and leakage of the inlet and outlet pipes in the marine environment is solved. This achieves stable delivery and safe monitoring of hydraulic oil, and improves the safety and reliability of the anchor winch hydraulic motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-03
AI Technical Summary
When existing anchor winch hydraulic motors are used in marine environments, the inlet and outlet pipes are susceptible to seawater corrosion, leading to leaks, which affect the stability of hydraulic oil delivery and endanger the safety of the ship's anchor winch system.
The inlet and outlet pipes are encased in a shell and base plate, combined with reinforcing blocks and sealing structures to enhance stability. A pressure sensor monitors for leaks in real time to ensure stable hydraulic oil delivery.
It effectively protects the inlet and outlet oil pipes, improves their stability and service life, ensures stable hydraulic oil delivery, and enhances the safety and reliability of the anchor winch hydraulic motor.
Smart Images

Figure CN224079412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic motor technology, and more specifically to a high-power, high-efficiency anchor winch hydraulic motor. Background Technology
[0002] Anchor winch hydraulic motors convert hydraulic energy provided by the hydraulic system into mechanical energy, powering the anchor chain wheel and drum of the anchor winch to drive them in anchoring and dropping operations. They precisely control the speed and tension of the anchor chain, ensuring the safety and stability of the vessel during anchoring and dropping. Therefore, anchor winch hydraulic motors are a key component of the ship's anchor winch system. Common anchor winch hydraulic motors include cycloidal and piston types. Cycloidal hydraulic motors consist of an internal gear ring and mating gears or rotors. Oil entering through the port drives the rotor to revolve around a central point. The rotor drives the output through a splined shaft. They are characterized by simple structure, small size, and light weight, and are widely used in anchor winch systems with low to medium torque and low to medium speed. Piston hydraulic motors, including radial and axial piston types, can output larger torque and are suitable for anchor winches on large ships. They can meet the needs of lifting and dropping large anchors and heavy anchor chains, and are often used in applications requiring high torque.
[0003] For example, a high-speed, high-power hydraulic motor with prior art disclosure number CN217950577U makes the motor structure more compact by directly arranging the plunger on the housing, thereby increasing the plunger diameter and thus increasing the motor displacement. By setting a weight-reducing hole at the eccentric position of the crankshaft, not only is the eccentricity of the crankshaft guaranteed, but the distance between the crankshaft's center of mass and the crankshaft's rotation center is also reduced, thereby reducing the moment of inertia and increasing the motor's angular acceleration performance.
[0004] However, the existing technology has the following problems when used: When the hydraulic motor operates at high power and high efficiency, it needs to provide a stable supply of hydraulic oil. However, the oil inlet and outlet pipe joints that supply the hydraulic oil are directly exposed on the surface of the hydraulic motor. Since the hydraulic motor on the ship's anchor winch is in the marine environment for a long time, and seawater is highly corrosive, these joints are frequently eroded by seawater, which can easily lead to damage and leakage of the oil inlet and outlet pipes. Once this happens, the hydraulic oil pressure will be weakened, which will have an adverse effect on the normal operation of the hydraulic motor. In severe cases, it may even endanger the safe and stable operation of the ship's anchor winch system. Utility Model Content
[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a high-power, high-efficiency anchor winch hydraulic motor. The inlet and outlet pipes are enclosed within a housing and base plate, which not only protects them but also enhances their stability with reinforcing blocks. This ensures stable hydraulic oil delivery and provides strong support for the high-power, high-efficiency operation of the anchor winch hydraulic motor. Furthermore, a pressure sensor can monitor for leaks in the inlet and outlet pipes in real time, thereby improving the safety of the anchor winch hydraulic motor and solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-power, high-efficiency anchor winch hydraulic motor, comprising an anchor winch hydraulic motor body, wherein the bottom end of the anchor winch hydraulic motor body is connected to an inlet pipe for conveying hydraulic oil and an outlet pipe for recovering hydraulic oil, wherein a rectangular groove is machined at the bottom end of the anchor winch hydraulic motor body, the inlet pipe and the outlet pipe are disposed within the rectangular groove, a protective component is provided inside the rectangular groove, the protective component includes a housing installed within the rectangular groove, a base plate is connected to the bottom end of the housing, two through holes are machined at the bottom end of the base plate, a plurality of reinforcing blocks are connected to the inner wall of the bottom of the base plate, the tops of the plurality of reinforcing blocks respectively contact the bottom ends of the inlet pipe and the bottom ends of the outlet pipe, and a leakage monitoring mechanism is provided inside the housing.
[0007] In a preferred embodiment, the leakage monitoring mechanism includes a pressure sensor for monitoring the internal air pressure of the housing. The pressure sensor is detachably installed on the inner wall of the top of the base plate and is located between two through holes. When the oil inlet pipe and the oil outlet pipe are damaged and leak, the air pressure inside the housing will change. At this time, the pressure sensor immediately monitors the change in air pressure inside the housing and sends a signal in time to shut down the main body of the anchor winch hydraulic motor to prevent damage to the main body of the anchor winch hydraulic motor.
[0008] In a preferred embodiment, the bottom end of the housing is provided with a limiting component for reinforcing the oil inlet pipe and the oil outlet pipe. The limiting component includes a bracket, and the top and bottom ends of the bracket are fixedly provided with clamps. The two clamps are respectively fitted onto the outer walls of the oil inlet pipe and the oil outlet pipe, and the oil inlet pipe and the oil outlet pipe are fixed by the two clamps, which can improve the stability of the oil inlet pipe and the oil outlet pipe, and can also make the hydraulic oil be delivered stably.
[0009] In a preferred embodiment, sealing strips are provided between the base plate and the housing, and between the housing and the rectangular groove. The sealing strips can improve the sealing between the base plate and the housing, and between the housing and the rectangular groove, thereby preventing moisture from entering the housing and corroding the oil inlet pipe and the oil outlet pipe.
[0010] In a preferred embodiment, sealing rings are provided between the two through holes and the oil inlet pipe and the oil outlet pipe, respectively. The sealing rings can improve the sealing performance between the oil inlet pipe, the oil outlet pipe and the through holes.
[0011] In a preferred embodiment, the surfaces of the shell, the base plate, the bracket, and the clamp are all coated with a corrosion-resistant coating. The corrosion-resistant coating is a polyurethane coating, which makes the shell and the base plate more resistant to seawater corrosion, thereby better protecting the oil inlet and outlet pipes and improving their service life.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model encloses the inlet and outlet pipes with a shell and a base plate, which not only protects the inlet and outlet pipes but also enhances their stability with reinforcing blocks, thereby ensuring stable hydraulic oil delivery and providing strong support for the anchor winch hydraulic motor to achieve high-power and efficient operation. In addition, the air pressure sensor can monitor the inlet and outlet pipes for leaks in real time, thereby improving the safety of the anchor winch hydraulic motor.
[0014] 2. The inlet and outlet pipes are connected to the base plate by two clamps, which can improve the stability of the inlet and outlet pipes and prevent them from shaking and affecting the delivery of hydraulic oil, thereby improving the stability of hydraulic oil delivery. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a bottom view of the overall structure of this utility model;
[0017] Figure 3 This is a sectional view of the shell and base plate of this utility model;
[0018] Figure 4 This is a structural diagram of the oil inlet pipe, oil outlet pipe, shell, and base plate of this utility model;
[0019] Figure 5 This is a structural diagram of the protective component and the limiting component of this utility model.
[0020] The attached diagram is labeled as follows: 1. Main body of the anchor winch hydraulic motor; 2. Oil inlet pipe; 3. Oil outlet pipe; 4. Rectangular groove; 5. Protective component; 6. Limiting component; 61. Bracket; 62. Clamp; 7. Sealing strip; 8. Sealing ring;
[0021] 51. Housing; 52. Base plate; 53. Through hole; 54. Reinforcing block; 55. Leakage monitoring mechanism; 551. Pressure sensor. Detailed Implementation
[0022] 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.
[0023] Refer to the instruction manual appendix Figure 1-5 This utility model provides a high-power, high-efficiency anchor winch hydraulic motor, including an anchor winch hydraulic motor body 1. The bottom end of the anchor winch hydraulic motor body 1 is connected to an oil inlet pipe 2 for conveying hydraulic oil and an oil outlet pipe 3 for recovering hydraulic oil. A rectangular groove 4 is machined at the bottom end of the anchor winch hydraulic motor body 1. The oil inlet pipe 2 and the oil outlet pipe 3 are located in the rectangular groove 4. A protective component 5 is provided inside the rectangular groove 4. The protective component 5 includes a housing 51 installed in the rectangular groove 4. A base plate 52 is connected to the bottom end of the housing 51. Two through holes 53 are machined at the bottom end of the base plate 52. Multiple reinforcing blocks 54 are connected to the inner wall of the bottom of the base plate 52. The top ends of the multiple reinforcing blocks 54 respectively contact the bottom ends of the oil inlet pipe 2 and the bottom ends of the oil outlet pipe 3.
[0024] The housing 51 is equipped with a leakage monitoring mechanism 55. Specifically, the leakage monitoring mechanism 55 includes a pressure sensor 551 for monitoring the air pressure inside the housing 51. The pressure sensor 551 is a BME280, which can measure temperature, humidity and air pressure, and supports an SPI communication interface. The pressure sensor 551 is connected to the controller of the anchor winch hydraulic motor body 1 to facilitate signal generation. Therefore, it is very suitable for monitoring the air pressure between the base plate 52 and the housing 51. The pressure sensor 551 is detachably installed on the inner wall of the top of the base plate 52, and the pressure sensor 551 is located between two through holes 53.
[0025] In actual use, hydraulic oil is delivered to the anchor winch hydraulic motor body 1 through the inlet pipe 2, and then discharged from the outlet pipe 3 for repeated recycling. When installing the inlet pipe 2 and outlet pipe 3, the operator first places a base plate 52 on the outside of the inlet pipe 2 and outlet pipe 3. Then, after connecting the ports of the inlet pipe 2 and outlet pipe 3 to the anchor winch hydraulic motor body 1, the housing 51 is installed into the rectangular groove 4. Finally, the base plate 52 is fixed to the housing 51. The housing 51 and base plate 52 seal the inlet pipe 2 and outlet pipe 3. Multiple reinforcing blocks 54 on the upper part respectively abut against the bottom of the oil inlet pipe 2 and the oil outlet pipe 3, thereby further improving the firmness of the connection between the two and the anchor winch hydraulic motor body 1, so as to stably deliver hydraulic oil to the anchor winch hydraulic motor body 1 for high-power and efficient operation. When the oil inlet pipe 2 and the oil outlet pipe 3 are damaged and leak, the air pressure sensor 551 immediately monitors the change in air pressure inside the housing 51 and sends a signal to the controller that controls the anchor winch hydraulic motor body 1 in a timely manner to shut down the anchor winch hydraulic motor body 1 to prevent damage to the anchor winch hydraulic motor body 1.
[0026] In this embodiment, sealing strips 7 are provided between the base plate 52 and the housing 51, and between the housing 51 and the rectangular groove 4. Sealing rings 8 are provided between the two through holes 53 and the oil inlet pipe 2 and the oil outlet pipe 3, respectively. By setting the sealing strips 7 and the sealing rings 8, the sealing performance between the base plate 52 and the housing 51, between the housing 51 and the rectangular groove 4, and between the base plate 52 and the oil inlet pipe 2 and the oil outlet pipe 3 can be improved.
[0027] Refer to the instruction manual appendix Figure 1-5 The bottom of the housing 51 is provided with a limiting component 6 for reinforcing the oil inlet pipe 2 and the oil outlet pipe 3. The limiting component 6 includes a bracket 61. The top and bottom of the bracket 61 are both fixed with clamps 62. The two clamps 62 are respectively sleeved on the outer wall of the oil inlet pipe 2 and the oil outlet pipe 3. The two clamps 62 are used to fix the oil inlet pipe 2 and the oil outlet pipe 3, thereby improving the stability of the oil inlet pipe 2 and the oil outlet pipe 3 and enabling stable delivery of hydraulic oil.
[0028] Furthermore, corrosion-resistant coatings are applied to the surfaces of the housing 51, the base plate 52, the bracket 61, and the clamp 62. The corrosion-resistant coating is made of polyurethane, which makes the housing 51 and the base plate 52 more resistant to seawater corrosion, thereby better protecting the oil inlet pipe 2 and the oil outlet pipe 3 and improving their service life.
[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-power and high-efficiency hydraulic motor for an anchor, comprising a hydraulic motor body (1) for an anchor, an oil inlet pipe (2) for conveying hydraulic oil and an oil outlet pipe (3) for recovering hydraulic oil being communicated with the bottom end of the hydraulic motor body (1) for an anchor, characterized in that: The anchor hydraulic motor body (1) bottom end is processed with a rectangular groove (4), the oil inlet pipe (2) and the oil outlet pipe (3) are arranged in the rectangular groove (4); The rectangular groove (4) is internally provided with a protection assembly (5), the protection assembly (5) comprises a shell (51) arranged in the rectangular groove (4), the shell (51) is connected with a bottom plate (52) at the bottom end, and the bottom plate (52) is processed with two through holes (53) at the bottom end; The bottom plate (52) is connected with a plurality of reinforcing blocks (54) on the inner wall of the bottom, the reinforcing blocks (54) are in contact with the bottom ends of the oil inlet pipe (2) and the oil outlet pipe (3) respectively, and the shell (51) is internally provided with a leakage monitoring mechanism (55).
2. A high power efficient anchor hydraulic motor as claimed in claim 1 wherein: The leakage monitoring mechanism (55) comprises an air pressure sensor (551) for monitoring the air pressure in the shell (51), the air pressure sensor (551) is detachably arranged on the inner wall of the top of the bottom plate (52), and the air pressure sensor (551) is located between the two through holes (53).
3. The high power and high efficiency anchor hydraulic motor as claimed in claim 1, wherein: The shell (51) is provided with a limiting assembly (6) for reinforcing the oil inlet pipe (2) and the oil outlet pipe (3) at the bottom end, the limiting assembly (6) comprises a support (61), the top end and the bottom end of the support (61) are fixedly provided with a clamp (62), and the two clamps (62) are sleeved on the outer walls of the oil inlet pipe (2) and the oil outlet pipe (3) respectively.
4. The high power and high efficiency anchor hydraulic motor as claimed in claim 1, wherein: The bottom plate (52) and the shell (51) are provided with sealing strips (7) between them and between the shell (51) and the rectangular groove (4).
5. The high power and high efficiency anchor hydraulic motor as claimed in claim 1, wherein: The two through holes (53) are provided with sealing rings (8) between them and the oil inlet pipe (2) and the oil outlet pipe (3).
6. The high power, high efficiency wind mill hydraulic motor of claim 1, wherein: The surfaces of the shell (51), the bottom plate (52), the support (61) and the clamp (62) are sprayed with corrosion-resistant paint.
Citation Information
Patent Citations
High-rotating-speed and high-power hydraulic motor
CN217950577U