Hydraulic steering engine steering system

By introducing a booster mechanism into the hydraulic steering system, and using a torque sensor to monitor and assist the hydraulic telescopic rod in providing steering torque, the problems of high load and short life of hydraulic steering gear are solved, achieving the effects of reducing costs and extending service life.

CN223494747UActive Publication Date: 2025-10-31LUOYANG YAOSHENG HYDRAULIC CO LTD
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Patent Information

Application Number
CN202423295369.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-31
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing hydraulic steering systems rely on a single hydraulic steering gear to drive the propeller, resulting in a large load on the hydraulic steering gear, high material requirements, short service life, and high cost.

Method used

An assist mechanism is introduced, including a rotating sleeve, a hydraulic telescopic rod, and a fixed hinge seat. A torque sensor monitors the torque changes of the hydraulic steering gear, and the assist hydraulic telescopic rod provides additional steering torque to share the load of the hydraulic steering gear.

Benefits of technology

This reduces the quality requirements for hydraulic steering systems, extends their service life, lowers costs, and allows for the use of lower-cost hydraulic steering systems and control systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic steering engine steering system, which belongs to the field of steering engine steering systems, and comprises a steering oar and a hydraulic steering gear which is connected with the steering oar through a connecting shaft and is used for driving the steering oar to rotate, a torque sensor connected with a rotating shaft of the hydraulic steering gear is arranged at the end, away from the steering oar, of the hydraulic steering gear, and a boosting mechanism used for assisting steering is arranged at the end of the steering oar. The boosting mechanism comprises a rotating sleeve fixedly connected to the steering oar rotating shaft, hydraulic telescopic rods symmetrically hinged to the two sides of the rotating sleeve, and fixed hinged supports hinged to the ends, away from the rotating sleeve, of the hydraulic telescopic rods and used for being installed on a ship body. According to the hydraulic steering engine steering system, by introducing the boosting mechanism, the load of the hydraulic steering gear is effectively shared, the requirement for the quality of the hydraulic steering gear is lowered, and the service life of the hydraulic steering gear is prolonged.
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Description

Technical Field

[0001] This application relates to the field of steering system technology, specifically a hydraulic steering system. Background Technology

[0002] A servo steering system typically refers to a system that uses a servo motor as the core component to achieve steering function. The servo motor is usually equipped with a potentiometer or other angle sensor to detect the rotation angle of the output shaft, thereby achieving precise control and maintenance of the output shaft angle.

[0003] In marine steering systems, hydraulic steering gears are typically used to drive the rudder propeller, providing highly sensitive and responsive steering maneuvers. They offer advantages such as high power gain, low control power requirements, light weight, and small size. However, relying solely on a single hydraulic steering gear to drive the rudder propeller places a heavy load on the gear and demands high-quality materials. Therefore, more expensive hydraulic steering gears and matching hydraulic control systems are needed. Furthermore, when used on large vessels, their service life under long-term loads is relatively short.

[0004] Therefore, this application provides a hydraulic steering system to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a hydraulic steering system designed to address the problems raised in the background art regarding existing hydraulic steering systems that rely solely on a single hydraulic steering unit to drive the propeller, resulting in a large load on the hydraulic steering unit, high quality requirements for the hydraulic steering unit, and shortened lifespan due to long-term use.

[0006] To achieve the above objectives, this application provides the following technical solution: a hydraulic rudder steering system, including a rudder propeller and a hydraulic steering gear connected to the rudder propeller via a connecting shaft for driving the rudder propeller to rotate.

[0007] A torque sensor connected to the shaft of the hydraulic steering unit is provided at the end of the hydraulic steering unit away from the rudder propeller, and a booster mechanism for assisting steering is provided at the end of the rudder propeller.

[0008] The booster mechanism includes a rotating sleeve fixedly connected to the propeller shaft, hydraulic telescopic rods symmetrically hinged to both sides of the rotating sleeve, and fixed hinge seats for mounting to the hull, each hinged to an end of the hydraulic telescopic rods away from the rotating sleeve. The input end of the hydraulic telescopic rods is connected to the output end of the torque sensor. By introducing the booster mechanism, the load on the hydraulic steering gear is effectively distributed, reducing the quality requirements of the hydraulic steering gear and extending its service life. Furthermore, because the quality requirements of the hydraulic steering gear are reduced, a lower-cost hydraulic steering gear and matching hydraulic control system can be selected, thereby reducing the overall cost of the steering system.

[0009] Preferably, the hydraulic steering gear is connected to an external hydraulic control system via an oil pipe.

[0010] Preferably, a fixing plate is fixedly connected to the end cap of the hydraulic steering gear near the torque sensor via a support rod, and the torque sensor is fixedly mounted on the fixing plate.

[0011] Preferably, the torque sensor is connected to the shaft of the hydraulic steering unit via a coupling.

[0012] Preferably, a double-ended bolt is inserted into one end of the hydraulic telescopic rod near the rotating sleeve, and a first nut is screwed onto both ends of the double-ended bolt.

[0013] Preferably, a fixing bolt is fixedly connected to the fixed hinge seat, passing through the end of the hydraulic telescopic rod away from the rotating sleeve, and a second nut is screwed onto each fixing bolt.

[0014] Preferably, the fixed hinge seat has a mounting flange for bolt insertion.

[0015] This hydraulic steering system, by introducing a booster mechanism, effectively distributes the load on the hydraulic steering gear, reduces the quality requirements of the hydraulic steering gear, and extends its service life.

[0016] This hydraulic steering system reduces the requirements for the quality of the hydraulic steering gear, allowing for the use of lower-cost hydraulic steering gears and matching hydraulic control systems, thus lowering the overall cost of the steering system. Attached Figure Description

[0017] Figure 1 A schematic diagram of a hydraulic steering system. Figure 1 ;

[0018] Figure 2 A schematic diagram of a hydraulic steering system. Figure 2 ;

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0021] In the picture:

[0022] 1. Hydraulic steering gear; 11. Oil pipe; 12. Connecting shaft; 13. Fixing plate; 131. Support rod;

[0023] 2. Steerable propeller;

[0024] 3. Boosting mechanism; 31. Rotating sleeve; 32. Hydraulic telescopic rod; 321. Double-ended bolt; 322. First nut; 33. Fixed hinge seat; 331. Fixing bolt; 332. Second nut; 333. Mounting flange; 4. Torque sensor; 41. Coupling. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This embodiment provides a hydraulic steering system, such as Figures 1-4 As shown, the hydraulic steering system includes a rudder propeller 2 and a hydraulic steering gear 1 connected to the rudder propeller 2 via a connecting shaft 12 for driving the rudder propeller 2 to rotate.

[0027] A torque sensor 4 connected to the shaft of the hydraulic steering gear 1 is provided at the end of the hydraulic steering gear 1 away from the propeller 2, and a booster mechanism 3 for assisting steering is provided at the end of the propeller 2.

[0028] The booster mechanism 3 includes a rotating sleeve 31 fixedly connected to the shaft of the propeller 2, hydraulic telescopic rods 32 symmetrically hinged on both sides of the rotating sleeve 31, and fixed hinge seats 33 for mounting to the hull, which are hinged to the ends of the hydraulic telescopic rods 32 away from the rotating sleeve 31. The input end of the hydraulic telescopic rod 32 is connected to the output end of the torque sensor 4.

[0029] When in use, the hydraulic steering gear 1 starts working when steering is required. Its shaft drives the propeller 2 to rotate through the connecting shaft 12. At the same time, the torque sensor 4 monitors the torque change on the shaft of the hydraulic steering gear 1 in real time. Based on the torque data monitored by the torque sensor 4, the control system calculates the length that the hydraulic telescopic rod 32 needs to extend or retract to provide appropriate auxiliary steering torque. The hydraulic telescopic rod 32 extends or retracts according to the instructions of the control system. Through the hinge action of the rotating sleeve 31 and the fixed hinge seat 33, it provides additional steering torque to the propeller 2. The propeller 2 completes the steering action under the combined action of the hydraulic steering gear 1 and the booster mechanism 3.

[0030] The hydraulic steering gear 1 is connected to an external hydraulic control system via an oil pipe 11. The oil pipe 11 serves as a connection channel between the hydraulic steering gear 1 and the external hydraulic control system, and is responsible for transmitting hydraulic oil to drive the shaft of the hydraulic steering gear 1 to rotate.

[0031] Specifically, a fixing plate 13 is fixedly connected to the end cap of the hydraulic steering gear 1 near the torque sensor 4 via a support rod 131. The torque sensor 4 is fixedly mounted on the fixing plate 13. The support rod 131 and the fixing plate 13 together form the mounting bracket for the torque sensor 4, ensuring that the torque sensor 4 can be stably fixed on the hydraulic steering gear 1. The torque sensor 4 is connected to the shaft of the hydraulic steering gear 1 via a coupling 41, enabling real-time monitoring of torque changes on the shaft.

[0032] It should be noted that the torque sensor 4 is connected to the shaft of the hydraulic steering gear 1 via the coupling 41; this improves the reliability and stability of the connection between the torque sensor 4 and the shaft of the hydraulic steering gear 1; the design of the coupling 41 allows the torque sensor 4 to be flexibly installed on the shaft, adapting to different installation angles and positions.

[0033] Furthermore, a double-ended bolt 321 is inserted into one end of the hydraulic telescopic rod 32 near the rotating sleeve 31, and a first nut 322 is screwed onto both ends of the double-ended bolt 321. This improves the connection strength and stability between the hydraulic telescopic rod 32 and the rotating sleeve 31. The design of the double-ended bolt 321 and the first nut 322 makes the connection process simpler and more convenient, reducing the installation difficulty and cost. At the same time, it also makes subsequent maintenance and replacement more convenient.

[0034] Furthermore, a fixing bolt 331 is fixedly connected to the fixed hinge seat 33, passing through the end of the hydraulic telescopic rod 32 away from the rotating sleeve 31. A second nut 332 is screwed onto each fixing bolt 331. The design of the fixing bolt 331 and the second nut 332 makes the connection process simpler and more convenient, reduces the installation difficulty and cost, and also facilitates subsequent maintenance and replacement.

[0035] Specifically, the fixed hinge seat 33 has a mounting flange 333 along its edge for bolt insertion; the mounting flange 333, as part of the fixed hinge seat 33, provides an additional mounting surface for inserting a bolt to securely mount the fixed hinge seat 33 to the hull.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A hydraulic steering system, comprising a rudder propeller (2) and a hydraulic steering gear (1) connected to the rudder propeller (2) via a connecting shaft (12) for driving the rudder propeller (2) to rotate, characterized in that: The hydraulic steering gear (1) is provided with a torque sensor (4) connected to the shaft of the hydraulic steering gear (1) at the end away from the rudder propeller (2), and the rudder propeller (2) is provided with a booster mechanism (3) for assisting steering at the end. The booster mechanism (3) includes a rotating sleeve (31) fixedly connected to the shaft of the rudder propeller (2), a hydraulic telescopic rod (32) symmetrically hinged on both sides of the rotating sleeve (31), and a fixed hinge seat (33) for mounting to the hull, which is hinged to the end of the hydraulic telescopic rod (32) away from the rotating sleeve (31). The input end of the hydraulic telescopic rod (32) is connected to the output end of the torque sensor (4).

2. The hydraulic steering system according to claim 1, characterized in that: The hydraulic steering gear (1) is connected to an external hydraulic control system via an oil pipe (11).

3. The hydraulic steering system according to claim 2, characterized in that: A fixing plate (13) is fixedly connected to the end cap of the hydraulic steering gear (1) near the torque sensor (4) by a support rod (131), and the torque sensor (4) is fixedly installed on the fixing plate (13).

4. The hydraulic steering system according to claim 3, characterized in that: The torque sensor (4) is connected to the shaft of the hydraulic steering gear (1) via a coupling (41).

5. The hydraulic steering system according to claim 4, characterized in that: The hydraulic telescopic rod (32) has a double-ended bolt (321) inserted into one end near the rotating sleeve (31), and both ends of the double-ended bolt (321) are screwed with a first nut (322).

6. The hydraulic steering system according to claim 5, characterized in that: A fixing bolt (331) is fixedly connected to the fixed hinge seat (33) through one end of the hydraulic telescopic rod (32) away from the rotating sleeve (31), and a second nut (332) is screwed onto each fixing bolt (331).

7. The hydraulic steering system according to claim 6, characterized in that: The fixed hinge (33) has a mounting flange (333) along its edge for bolt insertion.