Casting system for rudder horn

Abstract

The utility model provides a rudder horn casting system, which comprises a rudder horn main body, a plurality of open risers and a plurality of blind risers are arranged on the upper surface of the rudder horn main body, the open risers are arranged at the thicker wall part of the rudder horn main body, and the blind risers are arranged at the thinner wall part of the rudder horn main body; the open riser is higher than the blind riser, and the size of the open riser is larger than that of the blind riser; a connecting channel is arranged between the open riser and the blind riser, and molten steel flows between the open riser and the blind riser through the connecting channel. In the casting system, molten steel in the casting system has better fluidity, it is guaranteed that impurities in the molten steel can fully float upwards, and it is guaranteed that the rudder horn has a more uniform cooling process. The bottom of the open riser is provided with the spacing frame, and the connecting part between the open riser and the rudder horn main body is divided into a plurality of units by the spacing frame, so that the contact area between each unit and the rudder horn main body is reduced, and the open riser can be more conveniently removed from the rudder horn main body.

Description

Technical Field

[0001] The present invention belongs to the technical field of rudder carrier casting, and particularly relates to a casting and pouring system for a rudder carrier. Background Art

[0002] A rudder carrier is an arm-shaped member attached to the tail of a ship's hull for supporting a semi-suspended rudder. Generally, its cross-section is also designed to be streamlined to match the rudder blade. It is not only an arm-shaped member for supporting a semi-suspended rudder, but also a local structure at the stern of the ship for supporting a semi-balanced rudder, and the quality of its mass will directly affect the use of the ship's tail.

[0003] Due to the relatively complex structural shape of the rudder carrier and the characteristic of being difficult to perform feeding, there are many casting defects in the rudder carrier, and the internal quality of the rudder carrier cannot be well guaranteed.

[0004] Therefore, it is necessary to provide an improved technical solution for the deficiencies of the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a casting and pouring system for a rudder carrier to at least solve the above problems existing in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A casting and pouring system for a rudder carrier, the pouring system includes a rudder carrier main body, and a plurality of open risers and a plurality of blind risers are arranged on the upper surface of the rudder carrier main body. The open risers are arranged at the positions where the wall thickness of the rudder carrier main body is thicker, and the blind risers are arranged at the positions where the wall thickness of the rudder carrier main body is thinner;

[0008] The open riser is higher than the blind riser, and the volume of the open riser is larger than that of the blind riser;

[0009] A connecting channel is arranged between the open riser and the blind riser, and molten steel flows between the open riser and the blind riser through the connecting channel.

[0010] For the casting and pouring system of the rudder carrier as described above, preferably, there are two open risers, and the open risers are located on both sides of the rudder carrier main body.

[0011] For the casting and pouring system of the rudder carrier as described above, preferably, the connecting channel includes two main channels, and the two main channels are respectively connected to one open riser, and the two main channels are parallel to each other.

[0012] For the casting and pouring system of the rudder carrier as described above, preferably, a plurality of transverse branches are connected between the two main channels, and a plurality of blind risers are arranged below each transverse branch.

[0013] For the casting and pouring system of the rudder hanging arm as described above, preferably, a vertical branch is provided between the horizontal branch and each blind riser.

[0014] For the casting and pouring system of the rudder hanging arm as described above, preferably, a vertical channel is provided at the upper part of the horizontal branch, and the top of the vertical channel is at the same horizontal height as the top of the open riser.

[0015] For the casting and pouring system of the rudder hanging arm as described above, preferably, a spacer is provided at the bottom of the open riser, and the spacer is used to divide the connecting part between the open riser and the rudder hanging arm body into multiple units.

[0016] For the casting and pouring system of the rudder hanging arm as described above, preferably, the spacer is in a cross-shaped structure.

[0017] For the casting and pouring system of the rudder hanging arm as described above, preferably, the spacer is made by pressing molding sand, and a high-temperature resistant paint is coated on the side of the spacer facing the rudder hanging arm body.

[0018] Beneficial effects:

[0019] In this pouring system, the open riser and the blind riser are connected through a connecting channel, and the molten steel between the open riser and the blind riser flows through the main channel, the horizontal branch and the vertical branch, so as to ensure that when the rudder hanging arm is cast, the molten steel in the pouring system has better fluidity, which not only ensures that the impurities in the molten steel can fully float up, but also ensures that the rudder hanging arm has a more uniform cooling process.

[0020] A spacer is provided at the bottom of the open riser, and the spacer divides the connecting part between the open riser and the rudder hanging arm body into multiple units, thereby reducing the contact area between each unit and the rudder hanging arm body, and making it more convenient to remove the open riser from the rudder hanging arm body. Description of the drawings

[0021] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0022] Figure 1 It is a top view of the casting and pouring system of the rudder hanging arm according to an embodiment of the present invention;

[0023] Figure 2 It is a front view of the casting and pouring system of the rudder hanging arm according to an embodiment of the present invention;

[0024] Figure 3 It is a side view of the casting and pouring system of the rudder hanging arm according to an embodiment of the present invention.

[0025] In the figure: 1. Rudder hanging arm main body; 2. Open riser; 3. Blind riser; 4. Main channel; 5. Horizontal branch; 6. Vertical branch; 7. Vertical channel; 8. Spacer frame. Specific embodiments

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0027] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0028] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] According to a specific embodiment of the present invention, as Figures 1-3 shown, the present invention provides a casting and pouring system for a rudder hanging arm. The pouring system includes a rudder hanging arm main body 1. A plurality of open risers 2 and a plurality of blind risers 3 are arranged on the upper surface of the rudder hanging arm main body 1. The open risers 2 are arranged at the parts with thicker wall thickness of the rudder hanging arm main body 1, and the blind risers 3 are arranged at the parts with thinner wall thickness of the rudder hanging arm main body 1; the open risers 2 are higher than the blind risers 3, and the volume of the open risers 2 is larger than that of the blind risers 3; a connecting channel is arranged between the open risers 2 and the blind risers 3, and molten steel flows between the open risers 2 and the blind risers 3 through the connecting channel.

[0030] In this pouring system, open risers 2 are arranged at the parts with thicker wall thickness of the rudder hanging arm main body 1, and blind risers 3 are arranged at the parts with thinner wall thickness of the rudder hanging arm main body 1. The open risers 2 are not only higher than the blind risers 3, but also the volume of the open risers 2 is larger than that of the blind risers 3, so that the open risers 2 can shrink the whole rudder hanging arm main body 1 as much as possible, while the blind risers 3 locally shrink the parts of the rudder hanging arm that are not conducive to shrinkage, thereby ensuring that the rudder hanging arm has better internal quality.

[0031] On this basis, the open riser 2 and the blind riser 3 are connected through a connecting channel, enabling the molten steel in the open riser 2 and the blind riser 3 to flow through the connecting channel. This not only reduces the temperature difference between the open riser 2 and the blind riser 3, ensuring that the temperature difference of the molten steel in adjacent open risers 2 and blind risers 3 is as small as possible, but also ensuring a more uniform cooling process for the cylinder body.

[0032] There are two open risers 2, which are located on both sides of the rudder hanging arm body 1. In an embodiment of the present application, the two open risers 2 are arranged on both sides of the rudder hanging arm body 1, enabling the open risers 2 to compensate for shrinkage of the entire rudder hanging arm body 1 as much as possible, and thus ensuring better casting quality of the rudder hanging arm.

[0033] The connecting channel includes two main channels 4, which are respectively connected to one open riser 2, and the two main channels 4 are parallel to each other. This arrangement enables both of the relatively large-sized open risers 2 to communicate with the connecting channel.

[0034] A plurality of transverse branches 5 are connected between the two main channels 4, and a plurality of blind risers 3 are arranged below each transverse branch 5. In an embodiment of the present application, there are two rows of blind risers 3 and two transverse branches 5, and there is one row of blind risers 3 below each transverse branch 5, enabling the plurality of transverse branches 5 to cover all the blind risers 3.

[0035] A vertical branch 6 is arranged between each transverse branch 5 and each blind riser 3. In an embodiment of the present application, the molten steel between the open riser 2 and the blind riser 3 flows through the main channel 4, the transverse branch 5, and the vertical branch 6, thereby ensuring better fluidity of the molten steel in the casting system during the casting of the rudder hanging arm. This not only ensures that impurities in the molten steel can fully float up, but also ensures a more uniform cooling process for the rudder hanging arm.

[0036] A vertical channel 7 is arranged on the upper part of the transverse branch 5, and the top of the vertical channel 7 is at the same horizontal height as the top of the open riser 2. In an embodiment of the present application, the top surface of the vertical channel 7 is at the same height as the top surface of the open riser 2, so as to utilize the principle of a communicating vessel for this connecting channel, thereby ensuring that the molten steel can fully enter every corner of the casting system.

[0037] A spacer 8 is provided at the bottom of the open riser 2. The spacer 8 is used to divide the connecting part between the open riser 2 and the rudder hanging arm body 1 into multiple units. In an embodiment of the present application, due to the large size of the open riser 2, the connection area between the open riser 2 and the rudder hanging arm body 1 is large, making it inconvenient to remove the open riser 2 from the rudder hanging arm body 1. By providing the spacer 8 at the bottom of the open riser 2, the spacer 8 divides the connecting part between the open riser 2 and the rudder hanging arm body 1 into multiple units, thereby reducing the contact area of each unit with the rudder hanging arm body 1 and making it more convenient to remove the open riser 2 from the rudder hanging arm body 1.

[0038] The spacer 8 is in a cross-shaped structure. In an embodiment of the present application, the cross-shaped spacer 8 divides the connecting part between the open riser 2 and the rudder hanging arm body 1 into four units, reducing the connection strength between the open riser 2 and the rudder hanging arm body 1 and facilitating the removal of the open riser 2 from the rudder hanging arm body 1.

[0039] The spacer 8 is made by pressing molding sand, and a high-temperature resistant paint is coated on the side of the spacer 8 facing the rudder hanging arm body 1. In an embodiment of the present application, this makes the side of the spacer 8 facing the rudder hanging arm body 1 have a good formed surface, thus ensuring better product quality of the rudder hanging arm body 1.

[0040] It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A casting system for a rudder arm, characterized in that: The casting system comprises a rudder arm hanging body, and the upper surface of the rudder arm hanging body is provided with a plurality of open risers and a plurality of concealed risers, wherein the open risers are provided at the thicker part of the rudder arm hanging body, and the concealed risers are provided at the thinner part of the rudder arm hanging body; The open riser is higher than the blind riser, and the volume of the open riser is larger than that of the blind riser; A connecting channel is provided between the exposed riser and the blind riser, and the molten steel flows between the exposed riser and the blind riser through the connecting channel. Two exposed risers are provided, and the exposed risers are located on both sides of the rudder arm body. The connecting channel includes two main channels, and the two main channels are respectively connected to one exposed riser, and the two main channels are parallel to each other. A plurality of transverse branches are connected between the two main channels, and a plurality of blind risers are provided under each transverse branch, and a vertical branch is provided between the transverse branch and each blind riser. A spacer is provided at the bottom of the open riser, and the spacer is used to separate the connection part between the open riser and the rudder arm body into a plurality of units.

2. The casting system for the rudder arm according to claim 1, characterized in that: A vertical channel is arranged at the upper part of the transverse branch, and the vertical channel and the top are at the same level as the top of the open riser.

3. The casting system for the rudder arm according to claim 1, characterized in that: The spacer frame is a cross-shaped structure.

4. The casting system for the rudder arm according to claim 1, characterized in that: The spacer is formed by pressing molding sand, and a side of the spacer facing the rudder arm body is coated with high temperature resistant paint.

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