Steering engine rotor with casting molding runner holes

Abstract

The utility model discloses a steering engine rotor with a casting molding runner hole, which comprises a rotor body, the casting runner hole is arranged in the rotor body in a penetrating manner, the casting runner hole is formed by casting, the casting runner hole is of a smooth U-shaped structure, and the casting runner hole is arranged on the side wall of the rotor body in a semi-surrounding manner. According to the utility model, through the arrangement of the casting runner hole and the design of a new runner structure form, the original design technology of punching a straight hole by machining is changed into the casting runner hole forming, so that the problems caused by processing limitation in the later period are reduced, and the potential safety hazard of leakage caused by cutting the sealing strip at the welding part is also avoided; compared with the prior art, the casting runner hole structure has the advantages that potential safety hazards of leakage caused by cutting of a sealing strip at a welding position are avoided, further, the situation that design cost is increased due to upshift caused by large diameter of a rudderstock and limitation of punching angle of a rotor inner hole is avoided, the smooth U-shaped casting runner hole is uniform in structure, the rotor strength is optimized, and the casting runner hole structure is more practical.

Description

Technical Field

[0001] The utility model relates to a steering gear rotor, in particular to a steering gear rotor with a cast flow channel hole, belonging to the technical field of ship equipment manufacturing. Background Art

[0002] A rotary vane steering gear is a power device used to steer and control a ship's course. It primarily rotates the rotor of the steering gear through a hydraulic system within the stator, thereby controlling the ship's course. Therefore, the flow hole is a key component in its design, allowing the hydraulic oil to enter and exit, ensuring the proper functioning of the steering gear. Therefore, the design of the flow hole is crucial to ensuring the performance and efficiency of the steering gear.

[0003] like Figure 1 The steering gear rotor includes a rotor body 1 and a straight hole flow channel hole 8 directly and cross-drilled inside the rotor body 1. Current products all use gaskets 7, plugs 5 and welding plugs 8 to block the straight hole flow channel hole 8 of the rotor body 1. This processing method is relatively simple and easy to operate, but it has certain disadvantages. For steering gears with large rudder shaft diameters, the drilling angle is limited, and it is often necessary to increase the tonnage of the steering gear, resulting in increased costs. In addition, for two-blade steering gears, the welding part where the two holes intersect is easy to cut the sealing strip, causing problems such as steering gear leakage. Utility Model Content

[0004] The purpose of the utility model is to address the defects of the existing technology and provide a steering gear rotor with a cast flow channel hole which has a reasonable structure, is easy to use and can reduce potential safety hazards in the later stage.

[0005] To achieve the above objectives, the present invention employs the following technical solution: a steering gear rotor with a cast flow hole, comprising a rotor body, the rotor body having a cast flow hole formed therethrough. The cast flow hole is formed by casting, and a plug is abutted against the inner wall of one end of the cast flow hole. Hydraulic oil enters the steering gear rotor from the oil cylinder through the cast flow hole, driving the steering gear to rotate, thereby driving the rudder blades. The design of the cast flow hole also allows for control of the flow rate and pressure of the hydraulic oil, thereby achieving precise control of the rotational speed and force of the rudder blades.

[0006] Furthermore, the casting flow channel hole is a smooth U-shaped structure, and the casting flow channel hole is semi-enclosed and arranged on the side wall of the rotor body.

[0007] Through the above technical solution, the smooth U-shaped structure makes the overall structure more uniform, which is also an optimization for the rotor strength.

[0008] Furthermore, the casting flow channel hole includes a first smooth arc portion, an arch portion and a second smooth arc portion, the arch portion surrounds one side of the center of the rotor body, and the inner wall of the second smooth arc portion conflicts with the outer surface of the plug.

[0009] Furthermore, moving blades are symmetrically fixedly connected to both sides of the outer surface of the rotor body, and sealing grooves are symmetrically opened on one side of the outer surface of the two moving blades.

[0010] Furthermore, the sealing groove passes through the side wall of the corresponding moving blade.

[0011] Through the above technical solution, the sealing groove can be used to install a sealing strip that abuts against the steering gear cylinder body, thereby achieving a sealing effect between the rotor body and the steering gear cylinder body.

[0012] Furthermore, when casting the casting flow channel hole, a core body corresponding to the shape of the casting flow channel hole is first manufactured, and then the core body is inserted into a mold having a cavity corresponding to the shape of the rotor body to be cast. The casting process is performed by injecting molten metal into the cavity, and then the core body and the mold are removed to form the rotor body with the casting flow channel hole.

[0013] Furthermore, the cast flow channel holes have two bends on both sides of the channel, with the openings at both ends located at the root of the connection between the moving blade and the rotor body. Furthermore, the flow channels are evenly distributed within the cavity. Different apertures can be designed to suit the design size of steering gears of different tonnages.

[0014] Furthermore, the material of the plug is Q235-B.

[0015] Through the above technical solution, the original design technology of drilling straight holes by machining is changed to casting flow channel hole forming, thereby reducing the problems caused by processing restrictions in the later stage.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the utility model is in use, the servo rotor with the cast flow channel hole is designed with a new flow channel structure through the set cast flow channel hole, and the original design technology of drilling straight holes by machining is changed to cast flow channel hole molding, thereby reducing the problems caused by processing restrictions in the later stage, and avoiding the safety hazard of leakage caused by cutting the sealing strip at the welding part, and avoiding the safety hazard of leakage caused by cutting the sealing strip at the welding part. Furthermore, it avoids the increase in design cost due to the large diameter of the rudder rod and the limited drilling angle of the rotor inner hole. In addition, the smooth U-shaped structure of the cast flow channel hole is uniform in structure, which is also an optimization for the rotor strength and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram for reflecting the structure of the rotor in the existing related technology;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the present utility model.

[0022] Description of the drawings: 1-rotor body; 2-cast flow channel hole; 3-moving blade; 4-sealing groove; 5-plug; 6-welded plug; 7-gasket; 8-straight hole flow channel hole. DETAILED DESCRIPTION

[0023] This embodiment proposes a steering gear rotor with a cast flow channel hole, the structure of which is as follows: Figures 2 to 3 As shown, the rotor body 1 includes a casting flow channel hole 2 formed by casting, and a plug 5 and a copper gasket are abutted against the inner wall of one end of the casting flow channel hole 2. In this embodiment, the plug is made of Q235-B.

[0024] The cast flow channel hole 2 has a smooth U-shaped structure, and the cast flow channel hole 2 is semi-enclosed on the side wall of the rotor body 1. Specifically, the cast flow channel hole 2 includes a first smooth arc portion, an arch portion and a second smooth arc portion. The arch portion is surrounded on one side of the center of the rotor body 1, and the inner wall of the second smooth arc portion is in conflict with the outer surface of the plug 5. The present application changes the original traditional design technology of drilling straight holes by machining to a cast flow channel hole 2 forming method, thereby reducing the problems caused by processing restrictions in the later stage, and avoiding the safety hazard of leakage caused by cutting the sealing strip at the welding part. At the same time, it avoids the safety hazard of leakage caused by cutting the sealing strip at the welding part. The smooth U-shaped structure makes the overall structure more uniform, which is also an optimization for the rotor strength.

[0025] The outer surface of the rotor body 1 is symmetrically fixed with moving blades 3 on both sides. The outer surfaces of the two moving blades 3 are symmetrically provided with sealing grooves 4 on one side. At the same time, the sealing portion 4 passes through the side wall of the corresponding moving blade 3. The sealing groove 4 can be used to install a sealing strip that abuts against the steering gear cylinder body, thereby achieving a sealing effect between the rotor body 1 and the steering gear cylinder body.

[0026] When casting the casting flow channel hole 2, a core body corresponding to the shape of the casting flow channel hole 2 is first manufactured, and then the core body is inserted into a mold having a cavity corresponding to the shape of the rotor body 1 to be cast. The casting process is performed by injecting molten soup into the cavity, and then the core body and the mold are removed to form the rotor body 1 with the casting flow channel hole 2.

[0027] The core body can be filled with a filler, such as core sand, commonly used in prior art casting. Core sand is a mixture of raw sand and a binder (such as water glass or resin) that forms the internal structure of the casting. This core sand is created in a core box by hand or by a machine (such as a core blower or core shooter). It is commonly used in the production of various metal castings. Cores made from core sand, commonly known as "mud cores" or "cores," play a crucial role in the casting process, ensuring accurate reproduction of the casting's internal structure.

[0028] When using a servo rotor with a cast flow channel hole, a new flow channel structure is designed, and the original design technology of drilling straight holes by machining is changed to a cast flow channel hole 2 forming, thereby reducing the problems caused by processing restrictions in the later stage, and avoiding the safety hazard of leakage caused by cutting the sealing strip at the welding part. Furthermore, it avoids the increase in design cost due to the large diameter of the rudder shaft and the limited drilling angle of the inner hole of the rotor body 1. In addition, the smooth U-shaped structure of the cast flow channel hole 2 is uniform in structure, which is also an optimization for the strength of the rotor body 1 and is more practical.

[0029] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A steering gear rotor with a cast flow channel hole, comprising a rotor body (1), characterized in that: A casting flow channel hole (2) is provided through the interior of the rotor body (1), the casting flow channel hole (2) being formed by casting, and a plug (5) and a copper gasket are abutted against the inner wall of one end of the casting flow channel hole (2); hydraulic oil enters the steering gear rotor part from the oil cylinder through the casting flow channel hole, pushing the steering gear to rotate, thereby driving the rudder blade to rotate.

2. The steering gear rotor with cast flow channel holes according to claim 1, characterized in that: The casting flow channel hole (2) has a smooth U-shaped structure, and the casting flow channel hole (2) is semi-enclosed and arranged on the side wall of the rotor body (1).

3. The steering gear rotor with cast flow channel holes according to claim 1, characterized in that: The casting flow channel hole (2) comprises a first smooth arc portion, an arch portion and a second smooth arc portion, the arch portion surrounds one side of the center of the rotor body (1), and the inner wall of the second smooth arc portion contacts the outer surface of the plug (5).

4. The steering gear rotor with cast flow channel holes according to claim 1, characterized in that: Moving blades (3) are symmetrically fixedly connected to both sides of the outer surface of the rotor body (1), and sealing grooves (4) are symmetrically provided on one side of the outer surfaces of the two moving blades (3).

5. The steering gear rotor with cast flow channel holes according to claim 4, characterized in that: The sealing groove (4) passes through the side wall of the corresponding moving blade (3).

6. The steering gear rotor with cast flow channel holes according to claim 1, characterized in that: The pipes on both sides of the flow channel of the cast flow channel hole are bent, and the openings at both ends are arranged at the root of the connection between the moving blade and the rotor body, and the positions of the flow channels in the cavity are evenly distributed.

7. The steering gear rotor with cast flow channel holes according to claim 1, characterized in that: The material of the plug is Q235-B.

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