Curved surface jig frame pillar head

Abstract

The utility model relates to the technical field of ship construction, in particular to a curved surface jig frame strut head which comprises a strut and a panel arranged above the strut. A spherical column head is welded to the upper end of the supporting column, the spherical column head is sleeved with a hollow spherical shell, a plurality of balls are rotationally connected to the inner wall of the hollow spherical shell and make contact with the surface of the spherical column head, the upper end of the hollow spherical shell is in a plane shape, and one face of the panel is fixed to the top of the plane of the hollow spherical shell. According to the utility model, the contact area of the pillar head and the ship body curved-surface outer plate is increased, better supporting force is provided, the structural deformation and damage of the ship body curved-surface outer plate caused by small contact surface and overlarge pressure are reduced, the attractiveness and flatness of the ship body curved-surface outer plate are ensured, the abrasion to the spherical pillar head is effectively reduced, and the service life of the ship body curved-surface outer plate is prolonged. Therefore, the service life of the pillar head is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a curved surface tire frame support column head. Background Art

[0002] The cradle is a temporary structure during ship construction, mainly used to support and position various parts of the hull. The arrangement and adjustment of the cradle can ensure that the hull maintains the correct shape and curve during the construction process. It also provides a working platform and support structure to facilitate the processing and assembly of the hull structure, ensuring that the position and connection method of all components meet the design requirements.

[0003] Referring to a tire frame support column head structure disclosed in Chinese patent application No. 202310275794.1, the support bowl is connected to the support column, the spherical column head is embedded in the support bowl groove, and the contact panel is fixed to the top of the spherical column head and contacts the hull segment outer plate. When in use, by adjusting the spherical column head so that it can rotate freely in the support bowl groove, the contact panel is fitted with the hull segment outer plate, which increases the contact area between the support column head and the hull segment outer plate, reduces the deformation and damage of the outer plate structure caused by point contact, and ensures the smoothness and beauty of the hull segment outer plate.

[0004] By referring to the above comparative documents, it can be seen that the common tire frame support column heads are flat heads or round heads. However, the contact area between the two and the curved outer plate of the hull is limited, and some positions with larger lines are even single-point contact, which will cause greater stress at the contact position and easily cause deformation of the outer plate. Especially for the positions where the thickness of the segmented outer plate is thinner, it is more likely to produce pits on the surface and damage inside the steel plate. Although some column heads can rotate freely, the friction force is large during rotation, which is easy to wear the column head and affect the service life of the column head. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a curved tire frame support column head to solve the problems that the contact area of ​​the column head with the curved outer plate of the hull is limited and the column head is easy to wear.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A curved tire frame support column head comprises a support column and a panel, wherein the panel is arranged above the support column;

[0008] A spherical column head is welded to the upper end of the pillar, and a hollow spherical shell is provided outside the spherical column head. A plurality of balls are rotatably connected to the inner wall of the hollow spherical shell, and the balls are in contact with the surface of the spherical column head. The upper end of the hollow spherical shell is flat, and one side of the panel is fixed to the top of the hollow spherical shell plane, and a rubber pad is bonded to the other side of the panel.

[0009] Preferably, the hollow spherical shell is a hemispherical hollow structure, and the size of the hollow spherical shell is consistent with the size of the spherical column head.

[0010] Preferably, the hollow range inside the hollow spherical shell exceeds the hemisphere height of the spherical column head.

[0011] Preferably, reinforcing rods are fixed on both sides of the lower end of the panel, the lower ends of the reinforcing rods are fixed to the upper end of the hollow spherical shell, and the two reinforcing rods are symmetrically distributed.

[0012] Preferably, positioning rods are provided on both sides of the lower end of the hollow spherical shell, recesses are provided on the left and right sides of the pillar, the positioning rods are slid into the recesses through the pillar, and receiving openings are provided on both sides of the upper end of the pillar, and the positioning rods pass through adjacent receiving openings.

[0013] Preferably, the inner side walls of the recesses are provided with contraction grooves, spring return rods are fixed in the contraction grooves, the ends of the spring return rods are connected with clamping balls extending out of the contraction grooves, the inner side of the positioning rods are provided with upper clamping grooves and lower clamping grooves from top to bottom, the clamping balls match the upper clamping grooves and the lower clamping grooves, and a pull block is fixed on the outer side of the positioning rod.

[0014] The utility model provides a curved tire frame support column head, which has achieved the following beneficial effects through specific application in shipbuilding practice:

[0015] 1. The utility model provides a curved tire frame support column head by setting a spherical column head and a hollow spherical shell to simulate a spherical joint, so that the column head becomes rotatable, and the panel with a rubber pad is fitted with the curved outer plate of the hull by rotating the hollow spherical shell, thereby increasing the contact area between the support column head and the curved outer plate of the hull, providing better supporting force, reducing the deformation and damage of the curved outer plate structure of the hull caused by excessive pressure on the small contact surface, and ensuring the beauty and flatness of the curved outer plate of the hull.

[0016] 2. The utility model further provides a plurality of balls on the inner wall of the hollow spherical shell of the curved tire frame support column head. The balls roll and contact with the spherical column head, thereby effectively reducing the wear on the spherical column head and effectively extending the service life of the support column head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a curved tire frame support column head of the utility model;

[0018] Figure 2 This is a partial enlarged structural diagram of the utility model A;

[0019] Figure 3 This is a schematic diagram of the spherical column head structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall support working structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the overall external structure of the utility model.

[0022] Figure 1-5 Middle: pillar 1, spherical column head 2, hollow spherical shell 3, panel 4, rubber pad 5, ball 7, reinforcing rod 8, positioning rod 9, notch 10, storage port 11, contraction groove 12, spring return rod 13, card ball 14, lower card slot 15, upper card slot 16, pull block 17. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-5 The present embodiment provides a novel curved tire frame pillar column head, whose main structure includes a pillar 1 and a panel 4. The panel 4 is arranged above the pillar 1. A spherical column head 2 is welded to the upper end of the pillar 1. A hollow spherical shell 3 is arranged on the outer sleeve of the spherical column head 2. The upper end of the hollow spherical shell 3 is flat. One side of the panel 4 is fixed to the top of the plane of the hollow spherical shell 3. A rubber pad 5 is bonded to the other side of the panel 4. The hollow spherical shell 3 is a hemispherical hollow structure, and the size of the hollow spherical shell 3 is consistent with the size of the spherical column head 2.

[0026] By setting a spherical column head 2 and a hollow spherical shell 3 to simulate a spherical joint, the column head is made rotatable, and the hollow spherical shell 3 is rotated linearly according to the curved outer plate of the hull. When the curved outer plate of the hull rotates, the hollow spherical shell 3 is driven to rotate freely around the spherical column head 2 to adjust the angle, and the panel 4 and the rubber pad 5 are contacted with the curved outer plate. This fit increases the contact area between the support column head and the curved outer plate of the hull, avoids single-point contact, provides better supporting force, reduces deformation and damage of the outer plate structure caused by excessive pressure on a small contact surface, and ensures the beauty and flatness of the curved outer plate of the hull.

[0027] Example 2

[0028] On the basis of Example 1, a plurality of balls 7 are rotatably connected to the inner wall of the hollow spherical shell 3 , and the balls 7 are in contact with the surface of the spherical column head 2 .

[0029] In addition, a plurality of balls 7 are arranged on the inner wall of the hollow spherical shell 3. The balls 7 roll and contact with the spherical column head 2, thereby improving the original sliding friction between the hollow spherical shell 3 and the spherical column head 2 into rolling friction. Since the resistance of rolling friction is smaller than the resistance of sliding friction, the hollow spherical shell 3 rotates more smoothly and effectively reduces the wear on the spherical column head 2, thereby effectively extending the service life of the support column head.

[0030] Reinforcement rods 8 are fixed on both sides of the lower end of the panel 4. The lower ends of the reinforcement rods 8 are fixed to the upper end of the hollow spherical shell 3, and the two reinforcement rods 8 are symmetrically distributed.

[0031] By arranging two reinforcing rods 8 between the hollow spherical shell 3 and the panel 4, the supporting strength of the panel 4 is improved, and the two sides of the panel 4 are effectively prevented from being broken due to insufficient supporting force.

[0032] Both sides of the lower end of the hollow spherical shell 3 are provided with positioning rods 9, and both sides of the left and right sides of the pillar 1 are provided with recesses 10. The positioning rods 9 are slid into the recesses 10 through the pillar 1. Both sides of the upper end of the pillar 1 are provided with receiving openings 11, and the positioning rods 9 pass through adjacent receiving openings 11. The inner side walls of the recesses 10 are provided with contraction grooves 12, and spring return rods 13 are fixed in the contraction grooves 12. The ends of the spring return rods 13 are connected with a card ball 14 extending from the contraction groove 12. The inner side of the positioning rod 9 is provided with an upper card groove 16 and a lower card groove 15 from top to bottom, and the card ball 14 matches the upper card groove 16 and the lower card groove 15. A pull block 17 is fixed on the outer side of the positioning rod 9.

[0033] By supporting the two sides of the lower end of the hollow spherical shell 3 with the positioning rod 9 and under the premise that the card ball 14 is inserted into the lower card groove 15, it is helpful to prevent the positioning rod 9 from accidentally sliding down. The hollow spherical shell 3 is stably supported by the two positioning rods 9. When the panel 4 supports the curved outer plate of the hull, it is helpful to lay the panel 4 flat in advance to avoid the panel 4 from being skewed in advance due to rotation before support, which is helpful to accurately and stably place the curved outer plate of the hull on the panel 4 for support.

[0034] The ends of the spring return rod 13 are connected with a ball 14 extending out of the contraction groove 12. The inner side of the positioning rod 9 is provided with an upper groove 16 and a lower groove 15 from top to bottom. The ball 14 matches the upper groove 16 and the lower groove 15. A pull block 17 is fixed on the outer side of the positioning rod 9. The positioning rod 9 is pulled downward by the pull block 17. Under the premise that the ball 14 is inserted into the lower groove 15, the ball 14 will compress the spring return rod 13 during the process of the ball 14 sliding out of the lower groove 15. When the ball 14 moves out of the lower groove 15, the positioning rod 9 is continuously pulled downward until the ball 14 is aligned with the upper groove 16. At this time, the elastic force of the spring return rod 13 drives the ball 14 to be inserted into the upper groove 16. At the same time, the upper end of the positioning rod 9 is retracted into the receiving port 11 to prevent the positioning rod 9 from affecting the normal rotation of the hollow spherical shell 3.

[0035] The hollow range inside the hollow spherical shell 3 exceeds the hemisphere height of the spherical column head 2. Since the hollow range inside the hollow spherical shell 3 exceeds the hemisphere height of the spherical column head 2, it is beneficial to prevent the hollow spherical shell 3 from falling off the spherical column head 2.

[0036] When the curved surface tire frame support column head of the utility model is used in the process of ship segment construction, it can show application advantages for different segments, especially segments with curved surfaces, hyperbolic surfaces and multiple curved surfaces. The implementation process is as follows:

[0037] First, the panel 4 with the rubber pad 5 is fitted with the curved outer plate of the hull by rotating the hollow spherical shell 3. When the curved outer plate of the hull rotates, the hollow spherical shell 3 is driven to freely rotate around the spherical column head 2 to adjust the angle. At the same time, when the hollow spherical shell 3 rotates, the ball 7 is driven to roll along the surface of the spherical column head 2. The rolling of the ball 7 contacts the spherical column head 2, which not only increases the contact area between the column head of the support and the curved outer plate of the hull, but also prevents the spherical column head 2 from being damaged due to large friction.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A curved tire frame support column head, comprising a support (1) and a panel (4), wherein the panel (4) is arranged above the support (1), and is characterized in that: A spherical column head (2) is welded to the upper end of the pillar (1), a hollow spherical shell (3) is provided on the outer cover of the spherical column head (2), a plurality of balls (7) are rotatably connected to the inner wall of the hollow spherical shell (3), the balls (7) are in contact with the surface of the spherical column head (2), the upper end of the hollow spherical shell (3) is flat, one side of the panel (4) is fixed to the top of the hollow spherical shell (3) at the plane, and a rubber pad (5) is bonded to the other side of the panel (4).

2. The curved tire frame support column head according to claim 1, characterized in that: The hollow spherical shell (3) is a hemispherical hollow structure, and the size of the hollow spherical shell (3) is consistent with the size of the spherical column head (2).

3. The curved tire frame support column head according to claim 1, characterized in that: The hollow range inside the hollow spherical shell (3) exceeds the hemisphere height of the spherical column head (2).

4. The curved tire frame support column head according to claim 1, characterized in that: Reinforcement rods (8) are fixed on both sides of the lower end of the panel (4), the lower ends of the reinforcement rods (8) are fixed to the upper ends of the hollow spherical shell (3), and the two reinforcement rods (8) are symmetrically distributed.

5. The curved tire frame support column head according to claim 1, characterized in that: Positioning rods (9) are provided on both sides of the lower end of the hollow spherical shell (3); notches (10) are provided on both sides of the left and right sides of the pillar (1); the positioning rods (9) are slidably inserted into the notches (10) through the pillar (1); and receiving openings (11) are provided on both sides of the upper end of the pillar (1); and the positioning rods (9) pass through adjacent receiving openings (11).

6. The curved tire frame support column head according to claim 5, characterized in that: The inner side walls of the recesses (10) are provided with contraction grooves (12), the contraction grooves (12) are provided with spring return rods (13), the ends of the spring return rods (13) are connected with clamping balls (14) extending out of the contraction grooves (12), the inner side of the positioning rod (9) is provided with upper clamping grooves (16) and lower clamping grooves (15) in sequence from top to bottom, the clamping balls (14) match the upper clamping grooves (16) and the lower clamping grooves (15), and the outer side of the positioning rod (9) is provided with a pull block (17).

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