Small-resistance rudder tractor facilitating disassembly of rudderstock

Abstract

The small-resistance rudder tractor comprises a ship body, a reinforcing device and a protection device, the inner wall of the ship body is rotationally connected with the rudder stock through a bearing, the bottom of the rudder stock is fixedly connected with a supporting seat, the outer wall of the rudder stock is sleeved with a rudder blade, and one side of the ship body is provided with an installation device. The utility model relates to the technical field of shipbuilding, in particular to a small-resistance rudder towing device convenient to disassemble a rudderstock, when a paddle rotates, a ship body is driven to move, when a driving mechanism works, a rudder blade is driven to rotate through the rudderstock, the rudderstock is fixed in the rudder towing device through a mounting device, and by means of the fixing mode, when the rudder blade needs to be maintained, the rudderstock can be conveniently disassembled. The lower portion of the rudderstock can be detached by rotating the two rudders outwards, the rudderblade on the outer wall can be detached conveniently after the lower portion of the rudderstock is not limited, the rudderblade detaching process is simple and convenient, and manpower consumption and time cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, specifically to a low-resistance rudder tug that facilitates rudder stock disassembly. Background Technology

[0002] A ship is a man-made means of transportation that mainly operates in geographical waters. Its interior mainly includes a housing space, a supporting structure, and a drainage structure. It has a propulsion system that utilizes external or self-contained energy. Its shape is generally a streamlined envelope that helps overcome fluid resistance. The materials used are constantly being updated with technological advancements. Early ships used natural materials such as wood, bamboo, and hemp, while modern ships mostly use steel, aluminum, fiberglass, acrylic, and various composite materials. Ships need to use a rudder tow truck to support the rudder blade.

[0003] In traditional rudder towlines, the rudder towline is directly fixed to the stern. When installing the rudder blade, the operator must precisely align the connecting hole of the rudder blade with the hole on the top of the rudder towline in a straight line. Then, the rudder stock is inserted through the rudder blade and into the rudder towline to complete the assembly. This assembly method makes it inconvenient to remove the rudder stock from the rudder towline. When maintenance or repair of the rudder blade is required, the operation of disassembling the rudder stock is extremely difficult due to the limitations of the rudder towline's location, resulting in significant manpower and time costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a low-resistance rudder towstock that facilitates easy rudder stock disassembly. This solves the problem of traditional rudder towstocks, where the towstock is directly fixed to the stern. During rudder blade installation, operators must precisely align the rudder blade's connection hole with the hole on the top of the rudder towstock before inserting the rudder stock through the rudder blade and into the towstock for assembly. This assembly method makes it difficult to remove the rudder stock from the towstock. Furthermore, when rudder blade maintenance is required, disassembling the rudder stock is extremely difficult due to the limited space of the towstock, resulting in significant manpower and time costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-resistance rudder tow bar for easy rudder stick disassembly, comprising a hull, a reinforcement device, and a protective device. The inner wall of the hull is rotatably connected to a rudder stick body via bearings. A support base is fixedly connected to the bottom of the rudder stick body. A rudder blade is fitted onto the outer wall of the rudder stick body. An installation device is provided on one side of the hull. The installation device includes: two supports, each rotatably connected to the lower side of the hull and in contact with the outer wall of the support base; two sealing rubber strips, each fixedly connected to the top of one of the supports and in contact with the outer wall of the rudder stick body; two mounting grooves, each machined onto the top of one of the supports; and threaded rods, each threadedly connected to the inner wall of one of the supports. When the two supports rotate inward, they drive the two sealing rubber strips to move inward, and the two sealing rubber strips adhere to the outer wall of the rudder stick body. Simultaneously, the two supports are installed on the rudder stick body via the support base. Twisting the threaded rods fixes the two supports together.

[0006] Preferably, the inner wall of the hull is rotatably connected to the propeller blades via bearings.

[0007] Preferably, a drive mechanism is fixedly connected to the inner wall of the hull, and the bottom of the drive mechanism is fixedly connected to the top of the rudder stock body.

[0008] Preferably, the reinforcement device includes: multiple side plates, all fixedly connected to the outer wall of the hull; two straight plates, each rotatably connected to the inner side of the multiple side plates; and multiple bolts, each threadedly connected to the inner wall of the two straight plates and also threadedly connected to the inner wall of the two supports; wherein, after the two straight plates are pushed to rotate and fit against the outer walls of the two supports, the multiple bolts are twisted in sequence to rotate, and the multiple bolts fix the straight plates to the outer walls of the two supports, thus completing the reinforcement between the supports and the hull.

[0009] Preferably, the protective device includes: two curved plates, which are slidably engaged with the inner walls of the two mounting slots and respectively abutting the sides of the two straight plates that are close to each other; and two filter screens, which are fixedly connected to the sides of the two curved plates that are close to each other and are both abutting the outer wall of the rudder stock body, with the bottom of the two filter screens abutting the top of the two supports; wherein, after the two curved plates and the two filter screens are abutting the outer wall of the rudder stock body, the two filter screens protect the rudder stock body and the connection between the supports and supports.

[0010] Beneficial effects

[0011] This invention provides a low-resistance rudder trolley that facilitates rudder stock disassembly. It offers the following advantages: When the propeller rotates, the hull moves; when the drive mechanism operates, the rudder stock drives the rudder blades. The rudder stock is fixed inside the rudder trolley via an installation device. This fixing method allows for easy disassembly of the rudder stock by simply rotating the two rudder trolleys outwards when the rudder blades require maintenance. With the rudder stock unrestricted, the outer rudder blades can be easily removed. The rudder blade disassembly process is relatively simple, reducing manpower and time costs.

[0012] Protective devices are used to protect the connection between the rudder stock and the rudder trailer to prevent impurities from getting tangled on the outer wall of the rudder stock and affecting its normal use. Reinforcement devices are used to strengthen the rudder trailer and prevent it from deforming due to external influences. At the same time, the straight plate in the reinforcement device can fix the curved plate after it is fixed, which further saves the installation time of the filter screen inside the curved plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A sectional view;

[0015] Figure 3 for Figure 1 Schematic diagram of the connection structure of the middle side plate, straight plate and bolts;

[0016] Figure 4 for Figure 1 A schematic diagram of the connection structure between the bending plate and the filter screen.

[0017] In the diagram: 1. Hull; 2. Mounting device; 21. Brake; 22. Sealing rubber strip; 23. Mounting groove; 24. Threaded rod; 3. Rudder stock body; 4. Support seat; 5. Rudder blade; 6. Drive mechanism; 7. Propeller blade; 8. Reinforcing device; 81. Side plate; 82. Straight plate; 83. Bolt; 9. Protective device; 91. Bend plate; 92. Filter screen. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0020] In traditional rudder tow trucks, the rudder tow truck is directly fixed to the stern of the ship. When installing the rudder blade, the operator must precisely align the connection hole of the rudder blade with the hole on the top of the rudder tow truck in a straight line. Then, the rudder stock is inserted through the rudder blade and into the rudder tow truck to complete the assembly. This assembly method makes it inconvenient to remove the rudder stock from the rudder tow truck. When the rudder blade needs maintenance or repair, the operation of disassembling the rudder stock will be extremely difficult due to the limited position of the rudder tow truck, which consumes a lot of manpower and time.

[0021] In view of this, the present invention provides a low-resistance rudder tug that facilitates rudder stock disassembly. When the propeller blades rotate, they drive the hull to move. When the drive mechanism is working, it drives the rudder blades to rotate through the rudder stock. The rudder stock is fixed inside the rudder tug by an installation device. This fixing method makes it easy to disassemble the area below the rudder stock by rotating the two rudder tugs outward when the rudder blades need maintenance. After the area below the rudder stock is unrestricted, it is easy to remove the rudder blades from the outer wall. The rudder blade disassembly process is relatively simple, reducing manpower consumption and time costs.

[0022] Example 1: By Figure 1 , 2 As shown in points 3 and 4, a low-resistance rudder tug that facilitates rudder stick disassembly includes a hull 1, a reinforcing device 8, and a protective device 9. The inner wall of the hull 1 is rotatably connected to the rudder stick body 3 via bearings. A support base 4 is fixedly connected to the bottom of the rudder stick body 3. A rudder blade 5 is fitted onto the outer wall of the rudder stick body 3. An installation device 2 is provided on one side of the hull 1. The installation device 2 includes: two support tugs 21, both rotatably connected to the lower side of the hull 1 and both fitting against the outer wall of the support base 4; and two sealing rubber strips 22, each fixed... The two supports 21 are connected to the top of the two supports 21 and are in contact with the outer wall of the rudder stock body 3. Two mounting slots 23 are provided and machined on the top of the two supports 21 respectively. Threaded rods 24 are threadedly connected to the inner wall of the two supports 21. When the two supports 21 rotate inward, they drive the two sealing rubber strips 22 to move inward. The two sealing rubber strips 22 are in contact with the outer wall of the rudder stock body 3. At the same time, the two supports 21 are installed on the rudder stock body 3 through the support base 4. Twisting the threaded rods 24 will fix the two supports 21 together.

[0023] In the specific implementation process, it is worth noting that the support seat 4 is a bearing support seat. The support seat 4 facilitates the fixed connection between the rudder stock body 3 and the bearing. The outer wall of the rudder stock body 3 is machined with protrusions. The protrusions of the rudder stock body 3 are inserted into the grooves on the inner wall of the rudder blade 5 to complete the fixation between the rudder stock body 3 and the rudder blade 5. The sealing rubber strip 22 is arc-shaped. When the two support strips 21 are rotated, they fit together. The two support strips 21 complete the installation of the rudder stock body 3 through the support seat 4. Twisting the threaded rod 24 fixes the two support strips 21 together.

[0024] Furthermore, the inner wall of the hull 1 is rotatably connected to the propeller blade 7 via bearings;

[0025] In the specific implementation process, it is worth noting that when the propeller 7 rotates, it propels the hull 1 to move;

[0026] Furthermore, a drive mechanism 6 is fixedly connected to the inner wall of the hull 1, and the bottom of the drive mechanism 6 is fixedly connected to the top of the rudder stock body 3.

[0027] In the specific implementation process, it is worth noting that the working process of the drive mechanism 6 is as follows: the control system controls the corresponding reversing valve to make the high pressure oil flow to the cylinder of the rudder, which pushes the plunger to move. The plunger drives the rudder main body 3 to rotate through the connecting rod and other mechanisms, thereby causing the rudder blade 5 to deflect around its axis and complete the rotation of the rudder blade 5.

[0028] Specifically, when using this low-resistance rudder tow bar for easy rudder disassembly, the rudder main body 3 is passed through the rudder blade 5 to complete the installation between the rudder main body 3 and the rudder blade 5. The bearing is installed below the rudder main body 3 through the support seat 4. The operator pushes the two support tow bars 21 to rotate inward. The two support tow bars 21 cooperate with the support seat 4 to fix the rudder main body 3. At this time, the two sealing rubber strips 22 are attached to the outer wall of the rudder main body 3 to prevent water from entering the interior of the support tow bars 21. The operator twists the threaded rod 24 to rotate. The threaded rod 24 is threadedly connected to the two support tow bars 21 to complete the fixation of the two support tow bars 21. When the propeller blade 7 rotates, it pushes the hull 1 to move. The drive mechanism 6 adjusts the direction of use of the rudder blade 5 by driving the rudder main body 3 to rotate.

[0029] Example 2: From Figure 1 and 3 It is known that the reinforcement device 8 includes: multiple side plates 81, all fixedly connected to the outer wall of the hull 1; two straight plates 82, each rotatably connected to the inner side of the multiple side plates 81; and multiple bolts 83, each threadedly connected to the inner wall of the two straight plates 82, and also threadedly connected to the inner wall of the two support 21. After the two straight plates 82 are pushed to rotate and fit against the outer wall of the two support 21, the multiple bolts 83 are twisted sequentially to rotate, thus fixing the straight plates 82 to the outer wall of the two support 21, completing the reinforcement between the support 21 and the hull 1.

[0030] In the specific implementation process, it is worth noting that after pushing the two straight plates 82 to rotate inward and the two straight plates 82 are attached to the outer wall of the support 21, the two straight plates 82 are fixed to the outer wall of the two support 21 by twisting multiple bolts 83 in sequence.

[0031] Specifically, based on the above embodiment one, the workers push the two straight plates 82 to rotate towards the two supports 21. After the two straight plates 82 are attached to the outer wall of the supports 21, multiple bolts 83 are twisted in sequence to rotate. The multiple bolts 83 fix the two straight plates 82 to the outer wall of the two supports 21, thus completing the reinforcement between the supports 21 and the hull 1.

[0032] Example 3: From Figure 1 , 3 As shown in section 4, the protective device 9 includes: two curved plates 91, which are slidably engaged with the inner walls of the two mounting slots 23 and respectively attached to the sides of the two straight plates 82 that are close to each other; and two filter screens 92, which are fixedly connected to the sides of the two curved plates 91 that are close to each other and are attached to the outer wall of the rudder stock body 3. The bottom of the two filter screens 92 is attached to the top of the two support 21. After the two curved plates 91 and the two filter screens 92 are attached to the outer wall of the rudder stock body 3, the two filter screens 92 protect the connection between the rudder stock body 3 and the support 21.

[0033] In the specific implementation process, it is worth noting that the mesh size of the filter screen 92 is not specifically limited, as long as it meets the usage requirements. The two bent plates 91 are pushed to move inside the two mounting slots 23, and the two bent plates 91 drive the two filter screens 92 to fit against the outer wall of the rudder main body 3.

[0034] Specifically, based on the above embodiment one, the staff pushes the two curved plates 91 to move inside the two mounting slots 23. The two curved plates 91 drive the two filter screens 92 to adhere to the outer wall of the rudder main body 3. After the two straight plates 82 are fixed, they are attached to the outer wall of the two curved plates 91 to fix the two curved plates 91.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low resistance rudder with easy rudder post removal, comprising a hull (1), a reinforcement device (8) and a protection device (9), characterized in that: The inner wall of the ship body (1) is rotatably connected with a rudder body (3) through a bearing, the bottom of the rudder body (3) is fixedly connected with a support seat (4), the outer wall of the rudder body (3) is sleeved with a rudder blade (5), one side of the ship body (1) is provided with a mounting device (2), the mounting device (2) comprises: Supporting rods (21) are arranged on the bottom of one side of the ship body (1) and are in contact with the outer wall of the support seat (4); Sealing rubber strips (22) are arranged on the top of the supporting rods (21) and are in contact with the outer wall of the rudder body (3); Mounting grooves (23) are arranged on the top of the supporting rods (21); Threaded rods (24) are in threaded connection with the inner wall of the supporting rods (21); When the supporting rods (21) are rotated inward, the sealing rubber strips (22) are moved inward, the sealing rubber strips (22) are in contact with the outer wall of the rudder body (3), the supporting rods (21) are mounted on the rudder body (3) through the support seat (4), and the threaded rods (24) are twisted to fix the supporting rods (21).

2. A low drag rudder puller with a rudder rod that is easily removed as in claim 1, wherein: The inner wall of the ship body (1) is rotatably connected with a paddle (7).

3. A low drag rudder puller with a rudder rod that is easily removed as in claim 1, wherein: The inner wall of the ship body (1) is fixedly connected with a driving mechanism (6), and the bottom of the driving mechanism (6) is fixedly connected with the top of the rudder body (3).

4. A low drag rudder puller with a rudder rod that is easily removed as in claim 1, wherein: The reinforcing device (8) comprises: Side plates (81) are arranged on the outer wall of the ship body (1); Straight plates (82) are arranged on the inner side of the side plates (81); Bolts (83) are arranged on the inner wall of the straight plates (82) and are in threaded connection with the inner wall of the supporting rods (21); When the straight plates (82) are rotated and in contact with the outer wall of the supporting rods (21), the bolts (83) are twisted to fix the straight plates (82) on the outer wall of the supporting rods (21), and the supporting rods (21) and the ship body (1) are reinforced.

5. A low drag rudder puller with a rudder rod that is easily removed as in claim 4, wherein: The protection device (9) comprises: Bent plates (91) are arranged on the inner wall of the mounting grooves (23) and are in contact with the side of the straight plates (82) close to each other; Filter screens (92) are arranged on the side of the bent plates (91) close to each other and are in contact with the outer wall of the rudder body (3), and the bottom of the filter screens (92) is in contact with the top of the supporting rods (21); When the bent plates (91) and the filter screens (92) are in contact with the outer wall of the rudder body (3), the filter screens (92) protect the connection between the rudder body (3) and the supporting rods (21).

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