Rudder bush mounting tool

Abstract

The utility model relates to a rudder sleeve's installation instrument, concretely relates to a rudder sleeve installation instrument convenient to dismount, including lower bolster plate, round pipe stand and a plurality of limit round steel, and limit round steel is set up on the lower bolster plate on the circumference of lower bolster plate, the round pipe stand is set up on the lower bolster plate, and the top of round pipe stand is provided with the closing plate, is connected with the hoisting eye plate for hoisting on the closing plate. The elbow plate is arranged on the lower bolster plate, and the elbow plate is used for strengthening the connecting strength of the lower bolster plate and the round pipe stand. The limit round steel has four, and four limit round steels are evenly distributed on the lower bolster plate along the circumference of lower bolster plate. Four lightening holes are arranged on the lower bolster plate. The utility model not only simplifies the step of installation and dismounting of rudder sleeve, and the installation instrument is taken off from the rudder sleeve, and there is no scattered spare part from the rudder sleeve sleeve to be hoisted, and the problem of knocking the rudder pole cabin inner surface paint is eliminated.

Description

Technical Field

[0001] This utility model relates to a tool for installing a rudder sleeve, specifically a tool for installing a rudder sleeve that is easy to install and remove. Background Technology

[0002] A marine rudder sleeve is a component installed in the rudder knob hole to support the rotation of the rudder stock and effectively protect it. For fully suspended rudder vessels, the rudder sleeve design dictates that it can only be installed from bottom to top. Traditionally, rudder sleeve installation fixtures used a cover plate and a lower support plate to clamp the sleeve. Before removing the fixture, workers had to loosen the bolts and nuts connecting the cover plate and the lower support plate, and then disassemble the fixture into individual parts such as the cover plate, lower support plate, and studs. However, the internal space of the rudder stock sleeve on fully suspended rudder vessels is confined. During installation, the lower support plate obstructs the lower end of the sleeve, preventing workers from entering and loosening the bolts and nuts. They must reach in by hand or use other auxiliary tools, further complicating the installation process. Additionally, the disassembled cover plate, when lifted from above the sleeve, can easily damage the paint on the rudder stock's inner surface, requiring repainting and delaying the installation, thus impacting the overall construction schedule. The installation of the steering gear is a high-altitude operation, and the disassembled tooling parts lack effective fixation, posing a safety risk of falling and injuring construction workers. Utility Model Content

[0003] The purpose of this utility model is to provide a rudder sleeve installation tool that is easy to install and remove, which solves the problem of cumbersome installation and removal caused by the limited working space when using the current rudder sleeve installation tool.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tool for installing a rudder sleeve that is easy to assemble and disassemble includes a lower support plate, a cylindrical column, and multiple limiting cylindrical steel bars, which are arranged circumferentially on the lower support plate. The cylindrical column is arranged on the lower support plate, and a sealing plate is provided on the top of the cylindrical column. A lifting eye plate for lifting is connected to the sealing plate.

[0005] Furthermore, an elbow plate is provided on the lower support plate, which is used to strengthen the connection between the lower support plate and the circular tube column.

[0006] Furthermore, there are four limiting round steel bars, which are evenly distributed on the lower support plate along the circumference of the lower support plate.

[0007] Furthermore, the lower support plate is provided with four weight-reduction holes.

[0008] Furthermore, the central axis of the circular tube column coincides with that of the lower support plate.

[0009] Furthermore, the lifting eye plate is provided with lifting holes.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects: This invention eliminates the upper baffle in existing installation tools, retaining only the lower support plate. The screws and nuts connecting the upper cover plate and the lower support plate are also eliminated. A round tube column is directly welded to the lower support plate. The eye plate, originally welded to the upper baffle, is directly welded to the top sealing plate of the round tube column. A limiting round steel for connecting the rudder sleeve is installed on the lower support plate. Before installing the rudder sleeve, the installation tool with the rudder sleeve attached is placed in a liquid nitrogen tank to cool it down. Then, the rudder sleeve is placed into the rudder knob hole. After the rudder sleeve returns to room temperature, the entire installation tool can be removed. This invention not only simplifies the installation and disassembly steps of the rudder sleeve, but also prevents loose parts from being pulled out of the rudder stock sleeve after the installation tool is removed from the rudder sleeve, eliminating the problem of damaging the paint on the inner surface of the rudder stock compartment. Attached Figure Description

[0011] Figure 1 This is a front view of a tool for easily disassembling and assembling a rudder sleeve.

[0012] Figure 2 This is a top view of a tool for easily disassembling and assembling a rudder sleeve.

[0013] Figure 3 This is a schematic diagram of a tool for installing a rudder sleeve that is easy to disassemble and assemble.

[0014] Figure 4 This is a schematic diagram illustrating the use of a tool for easily disassembling and assembling a rudder sleeve. Detailed Implementation

[0015] like Figures 1 to 4 As shown, a rudder sleeve installation tool that is easy to assemble and disassemble includes a lower support plate 1, a circular tube column 2, and four limiting circular steel bars 3. The limiting circular steel bars 3 are arranged circumferentially on the lower support plate 1; the four limiting circular steel bars 3 are evenly distributed circumferentially on the lower support plate 1. The circular tube column 2 is arranged on the lower support plate 1, and a sealing plate 4 is provided on the top of the circular tube column 2. A lifting eye plate 5 for lifting is connected to the sealing plate 4. When installing the rudder sleeve 8, first, fit the rudder sleeve 8 onto the outside of the limiting round steel 3, so that the rudder sleeve 8 is snapped onto the lower support plate 1. Then, place the rudder sleeve 8 and the installation tools in a liquid nitrogen tank to cool it down, causing the rudder sleeve 8 to shrink and fit more tightly onto the limiting round steel 3. Then, connect it to the lifting eye plate 5 with a sling and hoist the rudder sleeve 8 from top to bottom into the rudder knob hole. After the rudder sleeve 8 recovers its size at room temperature, it will expand. The expanded rudder sleeve 8 and the rudder knob hole have an interference fit. After the rudder sleeve 8 expands, the installation tools will separate from the rudder sleeve 8 and can be dropped directly, making it easy to remove the installation tools from the rudder sleeve 8. This simplifies the steps of removing and installing the installation tools from the rudder sleeve 8, and also prevents the paint on the inner surface of the rudder stock compartment from being damaged during the removal of the installation tools, eliminating the need for subsequent repainting.

[0016] An elbow plate 6 is provided on the lower support plate 1. The elbow plate 6 is used to strengthen the connection between the lower support plate 1 and the round tube column 2. The elbow plate 6 has a triangular cross section and two right-angled sides. One right-angled side is attached to the round tube column 2, and the other right-angled side is attached to the lower support plate 1, which effectively prevents the round tube column 2 from shaking.

[0017] The lower support plate 1 is provided with four weight-reducing holes 7; the weight-reducing holes 7 can significantly reduce the weight of the lower support plate 1, making the movement of the lower support plate 1 easier to control. The cylindrical column 2 is aligned with the central axis of the lower support plate 1, and the lifting eye plate 5 is provided with lifting holes 9. When the rudder sleeve 8 is connected to the lower support plate 1, the sling needs to pass through the lifting holes 9 on the lifting eye plate 5 to drive the rudder sleeve 8 to move. The alignment of the cylindrical column 2 with the central axis of the lower support plate 1 can effectively prevent the tension from being eccentric, making the movement of the lower support plate 1 easier to control.

[0018] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A tool for easily disassembling and assembling rudder sleeves, characterized in that, It includes a lower support plate, a circular tube column, and multiple limiting round steel bars, which are arranged circumferentially on the lower support plate; the circular tube column is arranged on the lower support plate, and a sealing plate is provided on the top of the circular tube column, and a lifting eye plate for hoisting is connected to the sealing plate.

2. The rudder sleeve installation tool for easy disassembly and assembly according to claim 1, characterized in that, An elbow plate is provided on the lower support plate, which is used to strengthen the connection between the lower support plate and the round tube column.

3. The rudder sleeve installation tool for easy disassembly and assembly according to claim 1, characterized in that, There are four limiting round steel bars, which are evenly distributed on the lower support plate along the circumference of the lower support plate.

4. The rudder sleeve installation tool for easy disassembly and assembly according to claim 1, characterized in that, The lower support plate is provided with four weight reduction holes.

5. The rudder sleeve installation tool for easy disassembly and assembly according to claim 1, characterized in that, The central axis of the circular tube column coincides with that of the lower support plate.

6. The rudder sleeve installation tool for easy disassembly and assembly according to claim 1, characterized in that, The lifting eye plate is provided with lifting holes.

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