An auxiliary tooling for preventing deformation of a rudder sleeve

Abstract

The present invention relates to the technical field of auxiliary tools for preventing deformation of rudder sleeves, and discloses an auxiliary tool for preventing deformation of rudder sleeves, including a rudder sleeve assembly, and an anti-deformation auxiliary base assembly is provided at the bottom of the rudder sleeve assembly. Through the design of the retractable clamping assembly and the thread B on the surface of the anti-deformation auxiliary base assembly, the installation is very convenient. While the rudder sleeve assembly rotates to the surface of the thread B by using the internal thread A, the nut can also be rotated upward to adjust the distance between the rudder sleeve assembly and the anti-deformation auxiliary base assembly. In addition, the limiting hole on the surface of the nut and the limiting plate at the bottom of the rudder sleeve can be fixed together when rotated to a certain position. Before fixing, it is necessary to press the retractable clamping assembly to move the pull plate A and the pull plate B closer to each other to shrink. After fixing at the bottom, the retractable clamping assembly is released, and the pull plate A and the pull plate B will directly spread to both sides by using the spring to complete the fixing, and the disassembly and installation are very convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary tooling for preventing deformation of rudder sleeves, and particularly to an auxiliary tooling for preventing deformation of rudder sleeves. Background Art

[0002] In the existing traditional rudder system design, for ships with a gross tonnage of over 500 tons, the original design with a cast steel piece of a hanging rudder arm is adopted. Its entire rudder system is huge and complex, and the installation and connection between components are cumbersome. Not only is the on-site assembly workload large. The total weight of the rudder system accounts for a relatively large proportion of the light ship weight. Not only is the steering efficiency low, but also during navigation, due to the influence of the tail hanging rudder arm, it is not conducive to improving the propeller propulsion efficiency, and the rapidity of the ship and the energy-saving performance of reducing fuel consumption cannot be achieved. Due to the adoption of the traditional rudder system design with a hanging rudder arm plus a rudder blade, when the ship is sailing at high speed, it is very easy to generate a rudder cavitation phenomenon between the hanging rudder arm and the rudder blade and at the front part of the bottom end of the rudder blade. The rudder cavitation phenomenon will have a strong erosion effect on adjacent components and will corrode and damage the components after long-term accumulation. Because of the structure of the cast steel piece of the hanging rudder arm installed, the weight will increase by about 0.04%.

[0003] The welding between the rudder sleeve and the hull structure will cause welding deformation, resulting in the inner circle at the upper end of the rudder sleeve becoming elliptical, so that the rudder bearing cannot be installed into the rudder sleeve. In order to effectively limit the deformation of the inner circle of the rudder sleeve, an auxiliary tooling for preventing deformation of the rudder sleeve is proposed. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides an auxiliary tooling for preventing deformation of a rudder sleeve, which has the advantages of being convenient for disassembly and installation, and using a spring to manually rebound and fix between the deformation prevention tooling and the rudder sleeve, and solves the problem that the disassembly and installation of the deformation prevention tooling inside the rudder sleeve during welding is inconvenient.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: It includes a rudder sleeve assembly, characterized in that: a deformation prevention auxiliary base assembly is provided at the bottom of the rudder sleeve assembly, a deformation prevention auxiliary assembly is provided at the top of the deformation prevention auxiliary base assembly, and a telescopic clamping assembly is connected to the top of the deformation prevention auxiliary assembly.

[0008] Preferably, the telescopic clamping assembly includes a spring, a semi-lunar plate A is connected to one side of the spring, a pull plate A is provided at the center of one side surface of the semi-lunar plate A, a fixed rectangular box A is wrapped around one side of the pull plate A, and hinge A is provided on both sides of the fixed rectangular box A.

[0009] Preferably, a meniscus B is provided on the other side of the spring, a pull plate B is provided at the center of one surface of the meniscus B, one side of the pull plate B is wrapped with a fixed rectangular box B, and hinges B are provided on both sides of the fixed rectangular box B.

[0010] Preferably, the rudder sleeve assembly includes a rudder sleeve, the inner surface of the rudder sleeve is covered with a thread A, and the bottom of the rudder sleeve is annular and provided with a plurality of limiting plates.

[0011] Preferably, the anti-deformation auxiliary component includes a connecting iron ring A, the bottom of which is provided with several connecting columns A in a matrix form, the bottom of which is provided with a connecting iron ring B, the bottom of which is provided with several connecting columns B in a matrix form, the bottom of which is provided with a connecting iron ring C, and the bottom of which is provided with a connecting iron ring D.

[0012] Preferably, the anti-deformation auxiliary base assembly includes an anti-deformation sleeve, the surface of the anti-deformation sleeve is provided with a thread B, the bottom of the anti-deformation sleeve is provided with a base, and the bottom of the anti-deformation sleeve is wrapped with a nut near the edge.

[0013] Preferably, the number of the springs is two.

[0014] Preferably, the inclination angle of the limiting plate is 45°.

[0015] Preferably, the top surface of the nut is provided with a plurality of limiting holes in a matrix form.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a rudder sleeve anti-deformation auxiliary tooling with the following features:

[0018] Beneficial effects:

[0019] 1. The rudder sleeve anti-deformation auxiliary tooling is very convenient to install through the retractable clamping assembly and the thread B design on the surface of the anti-deformation auxiliary base assembly. While the rudder sleeve assembly is rotated to the surface of the thread B using the internal thread A, the nut can also be rotated upward to adjust the distance between the rudder sleeve assembly and the anti-deformation auxiliary base assembly. In addition, the limiting hole on the surface of the nut and the limiting plate at the bottom of the rudder sleeve can be fixed together when rotated to a certain position. Before fixing, it is necessary to press the retractable clamping assembly to move the pull plates A and B closer to the middle and narrow them. After fixing the bottom, release the retractable clamping assembly, and the pull plates A and B will use the spring to spread directly to both sides to complete the fixation, which is very convenient for disassembly and installation.

[0020] 2. The auxiliary tooling for preventing deformation of the rudder sleeve has the same structure for the two parts on both sides of the retractable clamping component, which are respectively: a spring, semi-lunar plate A, hinge A, fixed rectangular box A, pull plate A, semi-lunar plate B, hinge B, fixed rectangular box B, and pull plate B. It can directly use the spring in the middle to complete the telescoping. Press the semi-lunar plates A and B on both sides with fingers to squeeze the spring and pull the pull plates A and B on both sides towards the middle to reduce the range. When reaching the specified position, release the fingers directly, and the spring will automatically rebound to push and pull the pull plates A and B to both sides to complete the fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of an auxiliary tooling for preventing deformation of a rudder sleeve proposed by the present invention;

[0022] Figure 2 FIG. is a schematic exploded structural diagram of an auxiliary tooling for preventing deformation of a rudder sleeve proposed by the present invention;

[0023] Figure 3 FIG. is a schematic exploded structural diagram of an anti-deformation auxiliary component proposed by the present invention;

[0024] Figure 4 FIG. is a schematic structural diagram of a retractable clamping component proposed by the present invention;

[0025] Figure 5 FIG. is a schematic structural diagram of a rudder sleeve component proposed by the present invention;

[0026] Figure 6 FIG. is a schematic structural diagram of an anti-deformation auxiliary base component proposed by the present invention.

[0027] In the figure: 1. Retractable clamping component; 101. Spring; 102. Semi-lunar plate A; 103. Hinge A; 104. Fixed rectangular box A; 105. Pull plate A; 106. Semi-lunar plate B; 107. Hinge B; 108. Fixed rectangular box B; 109. Pull plate B; 2. Rudder sleeve component; 201. Rudder sleeve; 202. Thread A; 203. Limiting plate; 3. Anti-deformation auxiliary component; 301. Connecting iron ring A; 302. Connecting column A; 303. Connecting iron ring B; 304. Connecting column B; 305. Connecting iron ring C; 306. Connecting iron ring D; 4. Anti-deformation auxiliary base component; 401. Anti-deformation sleeve; 402. Thread B; 403. Nut; 404. Limiting hole; 405. Base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-6, a deformation prevention auxiliary tooling for a rudder sleeve, comprising a rudder sleeve assembly 2. A deformation prevention auxiliary base assembly 4 is provided at the bottom of the rudder sleeve assembly 2. A deformation prevention auxiliary assembly 3 is provided at the top of the deformation prevention auxiliary base assembly 4. A telescopic clamping assembly 1 is connected to the top of the deformation prevention auxiliary assembly 3. The telescopic clamping assembly 1 is a symmetric component with the same structure at both ends. The telescopic clamping assembly 1 includes a spring 101. One side of the spring 101 is connected to a semi-lunar plate A 102. The bending angle of the semi-lunar plate A 102 is 160°. At the center of one side surface of the semi-lunar plate A 102, there is a pull plate A 105. The shape of the pull plate A 105 is like a paddle. The bending angle of the inner end of the pull plate A 105 is 160°. The bending angle of the outer end of the pull plate A 105 is 160°. The shape of the pull plate B 109 is like a paddle. The bending angle of the inner end of the pull plate B 109 is 160°. The bending angle of the outer end of the pull plate B 109 is 160°. One side of the pull plate A 105 is wrapped with a fixed rectangular box A 104. The bending angles at both ends of the fixed rectangular box A 104 are the same, and the bending angle is 160°. Directly press the semi-lunar plate A 102 and the semi-lunar plate B 106 on both sides with fingers to squeeze the spring 101 and pull the pull plate A 105 and the pull plate B 109 towards the middle. The number of springs 101 is two, and the length of the spring 101 is 5 cm. Narrow the range, and when reaching the specified position, release the fingers directly. The spring 101 will automatically rebound and push and pull the pull plate A 105 and the pull plate B 109 to both sides to complete the fixation. On both sides of the fixed rectangular box A 104, there are respectively hinge A 103. The number of hinge A 103 is two. The connection between the hinge A 103 and the deformation prevention auxiliary assembly 3 is connected by bolts, which is convenient for disassembly and installation. On the other side of the spring 101, there is a semi-lunar plate B 106. The bending angle of the semi-lunar plate B 106 is 160°. At the center of one side surface of the semi-lunar plate B 106, there is a pull plate B 109. The bending angles at both ends of the pull plate B 109 are the same, and the bending angle is 160°. One side of the pull plate B 109 is wrapped with a fixed rectangular box B 108. The internal sizes of the fixed rectangular box A 104 and the fixed rectangular box B 108 are the same as the surface volumes of the pull plate A 105 and the pull plate B 109. On both sides of the fixed rectangular box B 108, there are respectively hinge B 107. The number of hinge B 107 is two. The connection between the hinge B 107 and the deformation prevention auxiliary assembly 3 is connected by bolts, which is convenient for disassembly and installation. The rudder sleeve assembly 2 includes a rudder sleeve 201. The surface of the rudder sleeve 201 is a smooth surface, and the inner surface is a thread A 202 surface. The inner surface of the rudder sleeve 201 is covered with thread A 202. At the bottom of the rudder sleeve 201, several limiting plates 203 are provided in a circular form. The number of limiting plates 203 is four. The deformation prevention auxiliary assembly 3 includes a connecting iron ring A 301. At the bottom of the connecting iron ring A 301, several connecting columns A 302 are provided in a matrix form. The number of connecting columns A 302 is four. At the bottom of the connecting column A 302, there is a connecting iron ring B 303.Through the thread B402 design on the surfaces of the retractable clamping assembly 1 and the anti-deformation auxiliary base assembly 4, the installation is very convenient. While the rudder sleeve assembly 2 is rotated to the surface of the thread B402 by using the internal thread A202, the nut 403 can also be rotated upward to adjust the distance between the rudder sleeve assembly 2 and the anti-deformation auxiliary base assembly 4. In addition, the limiting hole 404 on the surface of the nut 403 and the limiting plate 203 at the bottom of the rudder sleeve 201 can be fixed together when rotated to a certain position. Before fixing, it is necessary to press the retractable clamping assembly 1 to move the pull plate A105 and the pull plate B109 closer to each other to shrink. After fixing at the bottom, release the retractable clamping assembly 1, and the pull plate A105 and the pull plate B109 will directly spread to both sides by using the spring 101 to complete the fixation. The disassembly and installation are very convenient. The bottom of the connecting iron ring B303 is provided with several connecting columns B304 in a matrix form. The number of the connecting columns B304 is four. The bottom of the connecting column B304 is provided with a connecting iron ring C305. The bottom of the connecting iron ring C305 is provided with a connecting iron ring D306. The connecting iron ring A301, the connecting iron ring B303, the connecting iron ring C305 and the connecting iron ring D306 are made of the same material but different sizes, and they are all rust-proof materials. The anti-deformation auxiliary base assembly 4 includes an anti-deformation sleeve 401. The surface of the anti-deformation sleeve 401 is provided with a thread B402. The bottom of the anti-deformation sleeve 401 is provided with a base 405. The number of the limiting holes 404 is four. The base 405 is cylindrical. The bottom of the anti-deformation sleeve 401 near the edge is wrapped with a nut 403. The nut 403 can freely slide up and down on the surface of the thread B402. The number of the springs 101 is two. The inclination angle of the limiting plate 203 is 45°. The top surface of the nut 403 is provided with several limiting holes 404 in a matrix form. The specifications of the sleeves are 12, 14, 16, 18, 20, 22, 25, 25, 32, 36, 40, 50. In addition, there are left-right hand threads and different-diameter sleeves, such as: 25 left-right hand threads, 28 left-right hand threads, 28 / 25, 28 / 22, etc. The sleeves are divided into types such as taper thread sleeves, straight thread sleeves, cold extrusion sleeves, upsetting sleeves, split sleeves, grouting sleeves, etc. The straight thread sleeves are further divided into rib-removed straight thread sleeves and direct rolling straight thread sleeves. No matter which type of sleeve, its specification is named according to the specification of the steel bar it is connected to. For example, the sleeve for the steel bar is called a 25 sleeve, and the connection The steel bar is called a 28 sleeve, straight thread secondary steel, HRB335 grade steel bar, Φ16 40±0.5mm, Φ18 45±0.5, Φ20 50±0.5, Φ22 55±0.5, Φ25 60±0.5, Φ28 65±0.5, Φ32 90±0.5, Φ40 95±0.5, straight thread tertiary steel, HRB400 grade steel bar, Φ16 45±0.5mm, Φ18 50±0.5, Φ20 55±0.5, Φ22 60±0.5, Φ25 65±0.5, Φ28 70±0.5, Φ32 80±0.5, Φ36 90±0.5, Φ40 95±0.5. The problem of welding deformation of the rudder sleeve of the Becker rudder has existed for a long time. Compared with the 18,600T chemical tanker and the 40,000T self-unloading ship, the upper rudder bearing of the 26,000T self-unloading ship uses a ball bearing for load-bearing. The clearance between the outer diameter of the ball bearing and the inner diameter of the rudder sleeve is only 0.20mm, which poses new requirements for us to control the welding deformation of the rudder sleeve. Comparing the data collected from the 2# 40,000T self-unloading ship, it is found that the welding deformation of the inner diameter size of the rudder sleeve at the upper rudder bearing is relatively large. The size before welding is Φ755.05 - 755.10mm, and the size after welding is Φ756.65 - 754.16mm. Combining the data of the previous ships, if special control is not carried out here, the rudder system construction of the 26,000T self-unloading ship will surely not meet the requirements. In order to control the out-of-tolerance change of the inner diameter of the rudder sleeve during the welding process, the method of installing an auxiliary tooling is adopted. The outer diameter size of the tooling is 0.20 - 0.25mm smaller than the inner diameter of the sleeve, so as to restrict the welding deformation amount. After the welding work of the rudder sleeve is completed, the tooling is removed and measured. It is found that the use of the tooling has indeed achieved the purpose of controlling the welding deformation. The size of the left sleeve before welding is Φ520.05mm, and the size after welding is Φ520.08 - 520.23mm. The size of the right sleeve before welding is Φ520.08mm, and the size after welding is Φ520.18 - 520.37mm. Through the use of the anti-welding deformation tooling this time, not only the actual problems of this ship have been solved, but also the quality risk brought by the welding deformation of the rudder sleeve has been reduced.

[0030] During use, first, due to the threaded design B402 on the surface of the retractable clamping component 1 and the anti-deformation auxiliary base component 4, the installation is very convenient. While the rudder sleeve component 2 rotates to the surface of the threaded B402 by using the internal thread A202, the nut 403 can also be rotated upward to adjust the distance between the rudder sleeve component 2 and the anti-deformation auxiliary base component 4. In addition, the limiting hole 404 on the surface of the nut 403 and the limiting plate 203 at the bottom of the rudder sleeve 201 can be fixed together when rotated to a certain position. Before fixation, it is necessary to press the retractable clamping component 1 to move the pull plate A105 and the pull plate B109 closer to each other to reduce the distance. After the bottom is fixed, release the retractable clamping component 1, and the pull plate A105 and the pull plate B109 will spread to both sides by using the spring 101 to complete the fixation. The disassembly and installation are very convenient. Then, the two parts on both sides of the retractable clamping component 1 have the same structure, which are respectively: spring 101, semi-lunar plate A102, hinge A103, fixed rectangular box A104, pull plate A105, semi-lunar plate B106, hinge B107, fixed rectangular box B108, and pull plate B109. The spring 101 in the middle can be directly used to complete the telescoping. Just press the semi-lunar plate A102 and the semi-lunar plate B106 on both sides with fingers to squeeze the spring 101 and pull the pull plate A105 and the pull plate B109 on both sides towards the middle to reduce the range. When reaching the specified position, release the fingers directly, and the spring 101 will automatically rebound to push and pull the pull plate A105 and the pull plate B109 to both sides to complete the fixation.

[0031] In summary, the anti-deformation auxiliary tooling for the rudder sleeve has the advantages of convenient disassembly and installation, and the use of a spring to manually rebound and fix between the anti-deformation tooling and the rudder sleeve, solving the problem of inconvenient disassembly and installation of the anti-deformation tooling inside the rudder sleeve during welding.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one" does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0033] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tool for preventing deformation of a rudder sleeve, comprising a rudder sleeve assembly (2), characterized in that: The bottom of the rudder sleeve assembly (2) is provided with an anti-deformation auxiliary base assembly (4). The top of the anti-deformation auxiliary base assembly (4) is provided with an anti-deformation auxiliary assembly (3). The top of the anti-deformation auxiliary assembly (3) is connected with a telescopic clamping assembly (1). The telescopic clamping assembly (1) includes a spring (101). One side of the spring (101) is connected with a meniscus A (102). At the center of one side surface of the meniscus A (102), there is a pull plate A (105). One side of the pull plate A (105) is wrapped with a fixed rectangular box A (104). On both sides of the fixed rectangular box A (104), there are hinge A (103) respectively. On the other side of the spring (101), there is a meniscus B (106). At the center of one side surface of the meniscus B (106), there is a pull plate B (109). One side of the pull plate B (109) is wrapped with a fixed rectangular box B (108). On both sides of the fixed rectangular box B (108), there are hinge B (107) respectively. Hinge A and hinge B are fixedly connected to the anti-deformation auxiliary assembly by bolts. The rudder sleeve assembly (2) includes a rudder sleeve (201). The inner surface of the rudder sleeve (201) is covered with thread A (202). The bottom of the rudder sleeve (201) is provided with several limiting plates (203) in a circular form. The anti-deformation auxiliary assembly (3) includes a connecting iron ring A (301). At the bottom of the connecting iron ring A (301), there are several connecting columns A (302) in a matrix form. The bottom of the connecting column A (302) is provided with a connecting iron ring B (303). At the bottom of the connecting iron ring B (303), there are several connecting columns B (304) in a matrix form. The bottom of the connecting column B (304) is provided with a connecting iron ring C (305). The bottom of the connecting iron ring C (305) is provided with a connecting iron ring D (306). The anti-deformation auxiliary base assembly (4) includes an anti-deformation sleeve (401). The surface of the anti-deformation sleeve (401) is provided with thread B (402). The bottom of the anti-deformation sleeve (401) is provided with a base (405). The bottom of the anti-deformation sleeve (401) near the edge is wrapped with a nut (403). On the top surface of the nut (403), there are several limiting holes (404) in a matrix form. The limiting holes and the limiting plates can be fixed together when rotated to a certain position.

2. The auxiliary tool for preventing deformation of a rudder sleeve according to claim 1, characterized in that: The number of the springs (101) is two.

3. The auxiliary tool for preventing deformation of a rudder sleeve according to claim 1, characterized in that: The inclination angle of the limiting plates (203) is 45°.

Images