Production device of corrosion-resistant steel for wharf fasteners

Abstract

The utility model relates to the technical field of corrosion-resistant steel spraying, in particular to a production device of corrosion-resistant steel for wharf fasteners, which comprises a rotary worktable provided with a plurality of bolt clamping parts for loading a plurality of wharf fastening bolts; a first gear and a plurality of second gears are respectively externally meshed with the first gear, a single second gear is connected with the rotary worktable through a single first bearing, the inner diameter of the second bearing is connected with a rotating shaft of the rotary worktable, and the outer diameter of the second bearing is connected with a supporting table; the driving motor is connected with a rotating shaft of the rotary worktable; the flame spraying mechanism comprises a first spray head and a second spray head and is used for spraying the upper surface and the side surface of the wharf fastening bolt; the bolt clamping parts and the second gears are the same in number and are in one-to-one correspondence. According to the automatic flame spraying device, the automation degree of flame spraying is improved, automatic rotation can be achieved, the working efficiency is improved, and accurate positioning of spraying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion-resistant steel spraying, in particular to a production device of corrosion-resistant steel for dock fasteners. Background Art

[0002] As the wharf is close to the sea, the environment nearby is relatively harsh, resulting in serious corrosion problems for infrastructure and important industrial facilities in service in the marine environment, especially for marine engineering machinery. Corrosion has become the most important factor affecting the service safety and reliability of marine engineering machinery such as ships, offshore projects, and ocean-going facilities. In particular, the fasteners that serve as fixed connections for the wharf, the phenomenon of serious consequences caused by the failure of fasteners often occurs; therefore, corrosion resistance and mechanical properties need to be considered when producing fasteners, and the fasteners need to be further processed.

[0003] Various fasteners can be seen on various machinery, equipment, ships, vehicles, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies, etc. They are also the most widely used mechanical basic parts for marine engineering machinery. With the rapid development of the marine engineering machinery industry, the performance requirements of fasteners for marine engineering machinery are also getting higher and higher. However, due to the special working conditions of the marine operating environment, the current service life of fasteners can no longer meet the actual use needs. Therefore, vigorously developing marine engineering anti-corrosion materials and technologies is of great significance to ensure the service safety and reliability of marine engineering machinery, reduce the occurrence of major catastrophic accidents, and extend the service life of marine engineering machinery.

[0004] Chinese Patent Publication No.: CN217797028U discloses a high-strength, corrosion-resistant fastener surface treatment device. It includes a fixed frame, the top left side of the fixed frame is bolted with a motor A that drives the rotating shaft A to rotate, the power output end of the rotating shaft A is connected to the power input end of the screw, the outer side of the screw is threaded with a connecting sleeve, and the screw drives the connecting sleeve to move laterally on its outer side; a fixing plate for fixing the electric roller is welded on the outer side of the connecting sleeve, and a rope body that drives one side of the bracket is wrapped around the outer side of the electric roller. The above patent solves the problem that the existing fastener processing device is inconvenient to process the fastener surface during use and has low working efficiency through the installed electric roller, rope body, motor B, rotating shaft B, stirring rod, placement rack, processing box and bracket. It can be seen that the said. The following problems exist: the above-mentioned patent moves the placement rack into a processing box so that the outer walls of the fasteners in the placement rack are covered with paint liquid. When the paint liquid is reused, there will be impurities such as particles in the liquid. If these impurities are not treated regularly and are reused frequently, the particles or impurities in the liquid will adhere to the fasteners in the placement rack, thereby affecting the subsequent processing of the fasteners. Utility Model Content

[0005] To this end, the present utility model provides a production device for corrosion-resistant steel used in dock fasteners to overcome the problem of low spraying efficiency caused by low automation of flame spraying in the prior art.

[0006] To achieve the above object, the present utility model provides a production device for corrosion-resistant steel used in dock fasteners, which is used as a spraying production tool for dock fastening bolts and includes:

[0007] A rotary worktable provided with a plurality of bolt clamping parts for loading a plurality of dock fastening bolts;

[0008] A first gear fixedly connected to the rotary worktable, and the axis of the first gear coincides with the rotation center of the rotary worktable to rotate around the rotation center of the rotary worktable;

[0009] A plurality of second gears respectively meshing with the outside of the first gear, and a single second gear is connected to the rotary worktable through a single first bearing to transmit the rotation of the first gear to the second gear to drive the dock fastening bolts to rotate on their own axes on the rotary worktable and revolve around the rotation center of the rotary worktable along with the rotary worktable;

[0010] A second bearing, the inner diameter of which is connected to the rotation shaft of the rotary worktable and the outer diameter of which is connected to the support table, so that the support table supports the rotation of the rotary worktable;

[0011] A driving motor connected to the rotation shaft of the rotary worktable to drive the rotary worktable to rotate;

[0012] A flame spraying mechanism including a first nozzle and a second nozzle for spraying the upper surface and side surfaces of the dock fastening bolts;

[0013] The number of the bolt clamping parts is the same as and corresponds one by one to the number of the second gears.

[0014] Further, a convex part is provided on the dock fastening bolt, and a corresponding rotary clamping part is provided on the gear shaft of the second gear. The convex part cooperates with the rotary clamping part to transmit the rotation of the second gear to the dock fastening bolt, so that the dock fastening bolt rotates on its own axis on the rotary worktable.

[0015] Further, a single bolt clamping part includes a bolt loading through hole and a spraying support part provided on the rotary worktable. The axis of the dock fastening bolt, the axis of the bolt loading through hole are collinear with the axis of the corresponding first bearing and the axis of the second gear, and the aperture of the bolt loading through hole is larger than the outer diameter of the screw of the bolt loading through hole.

[0016] Further, the spraying support part includes a support block and an elastic structure. The support block is used to support the lower end face of the bolt head of the dock fastening bolt or block the screw rod of the dock fastening bolt, and the elastic structure is used to adjust the support height of the support block.

[0017] Further, each of the bolt clamping parts is evenly distributed around the rotation center of the rotary table. The axial distances of the centers of each bolt loading through-hole from the rotation center of the rotary table are the same, and the included angles formed by the adjacent bolt loading through-holes and the rotation center of the rotary table are the same.

[0018] Further, the number of teeth of the second gear satisfies that when the first gear rotates by a first displacement angle, the second gear rotates by 180° to 360°;

[0019] The first displacement angle is the included angle formed by the adjacent bolt loading through-hole and the rotation center of the rotary table.

[0020] Further, the support table is fixed on the horizontal bottom surface through support legs, and a support through-hole matching the outer diameter of the second bearing is arranged on the support table so that the support table is fixedly connected to the outer diameter of the second bearing.

[0021] Further, the flame spraying mechanism further includes a first moving component.

[0022] The first moving component includes a first slide rail arranged in the vertical direction and a first sliding bracket. The first sliding bracket moves on the first slide rail, and the first spray head is fixedly connected to the first sliding bracket. The flame spraying direction of the first spray head is in the horizontal direction.

[0023] Further, the flame spraying mechanism further includes a second moving component, wherein

[0024] The second moving component includes a second slide rail arranged along the diameter direction of the rotary table and a second sliding bracket. The second sliding bracket moves on the second slide rail, and the second spray head is fixedly connected to the second sliding bracket. The flame spraying direction of the first spray head is in the vertical direction.

[0025] Further, a housing is further included, which is arranged outside the rotary table and the flame spraying mechanism, and is used to isolate the spraying flame and maintain the ambient temperature of the dock fastening bolt;

[0026] The housing includes a temperature adjustment mechanism, which is used to adjust the ambient temperature of the dock fastening bolt.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows. The present utility model improves the accuracy of flame spraying. The first nozzle is at the same height as the bolt head of the dock fastening bolt, and the range of the flame sprayed by the first nozzle matches the side surface of the dock fastening bolt, so as to realize the precise flame spraying of the side surface of the dock fastening bolt by the flame spraying mechanism, avoid the spraying splash of the spraying flame on the bolt screw, and will not cause material waste.

[0028] Furthermore, the present utility model improves the automation degree of flame spraying. It is driven to rotate by a driving motor, and the gear shaft structure is utilized to drive the workbench to rotate, realizing the revolution rotation of the fastener. At the same time, the bearing structure is utilized to realize the rotation of the fastener, so as to realize the automatic rotary spraying of the fastener and improve the automation degree of spraying positioning.

[0029] Furthermore, the present utility model adopts a flame spraying mechanism to heat and accelerate the spraying material to the surface of the substrate by the flame flow to form a high-quality coating. There will be no situation where particulate impurities adhere to the fastener. And the present utility model adopts the precise dimension positioning and automation degree of spraying, maximizing the flame spraying technology, reducing material waste, reducing manpower and material resources, reducing processing costs, ensuring the processing quality of the fastener, and thus better performing subsequent processing on the fastener.

[0030] Furthermore, through the cooperation of the first gear and the second gear of the rotary workbench, the present utility model can perform loading, unloading and positioning spraying of the dock fastening bolt at a fixed point, reducing the difficulty and procedures of material loading and taking. And by setting a convex part and a rotary clamping part with corresponding matching dimensions, the dock fastening bolt is matched with the gear to rotate together, effectively transmitting the rotation while reducing the installation difficulty and improving the working efficiency of the production device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a production device for corrosion-resistant steel for a dock fastener of the present utility model;

[0032] Figure 2 is Figure 1 an enlarged schematic diagram of position A in

[0033] Figure 3 a front view schematic diagram of a convex part provided at the end of the bolt rod of the dock fastening bolt;

[0034] Figure 4 a bottom view schematic diagram of a convex part provided at the end of the bolt rod of the dock fastening bolt;

[0035] Figure 5 a front view schematic diagram of a rotary clamping part provided on the upper end surface of the gear shaft of the second gear;

[0036] Figure 6 Top view schematic diagram of the rotary clamping portion provided on the upper end surface of the gear shaft of the second gear;

[0037] Figure 7 Schematic diagram of a part of the flame spraying mechanism;

[0038] Figure 8 Top view schematic diagram of the rotary table;

[0039] In the figure: 1, rotary table; 2, first gear; 3, second gear; 4, first bearing; 5, second bearing; 6, flame spraying mechanism; 7, support table; 8, drive motor; 9, housing; 12, rotating shaft of the rotary table; 100, dock fastening bolt; 101, protruding portion; 31, gear shaft of the second gear; 301, rotary clamping portion; 61, first nozzle; 62, second nozzle; 111, bolt loading through-hole; 112, spraying support portion; 1121, support block; 1122, elastic structure; 71, support leg; 72, support through-hole; 611, first slide rail; 612, first sliding bracket; 621, second slide rail; 622, second sliding bracket. Detailed implementation manners

[0040] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0041] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and do not limit the protection scope of the present utility model.

[0042] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model.

[0043] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] Please refer to Figure 1 as shown in the figure, which is a schematic diagram of a production device for corrosion-resistant steel used in a dock fastener of the present utility model. The present utility model provides a production device for corrosion-resistant steel used in a dock fastener, which is used as a spraying production tool for dock fastening bolts and includes:

[0045] A rotary table 1, which is provided with a plurality of bolt clamping parts for loading a plurality of dock fastening bolts 100;

[0046] A first gear 2, which is fixedly connected to the rotary table 1, and the axis of the first gear coincides with the rotation center of the rotary table 1 to rotate around the rotation center of the rotary table;

[0047] A plurality of second gears 3, which are respectively externally meshed with the first gear 2. A single second gear 3 is connected to the rotary table 1 through a single first bearing 4 to transmit the rotation of the first gear 2 to the second gear 3 through gear meshing. The second gear 3 drives the dock fastening bolt 100 to rotate on its own axis on the rotary table 1, and the outer diameter of the first bearing 4 is fixedly connected to the rotary table 1 so that the dock fastening bolt 100 revolves around the rotation center of the rotary table 1 with the rotary table 1; In implementation, the number of first bearings is the same as that of the second gears and they are in one-to-one correspondence;

[0048] A second bearing 5, whose inner diameter is connected to the rotating shaft 12 of the rotary table 1 and whose outer diameter is fixedly connected to the support through hole 72 on the support table 7, so that the support table 7 supports the rotation of the rotary table 1;

[0049] A driving motor 8, which is connected to the rotating shaft of the rotary table 1 to drive the rotary table 1 to rotate; In implementation, the connection between the output shaft of the driving motor and the rotating shaft 12 of the rotary table is not restricted Figure 1 by this, and it can also be a direct drive motor output torque or output torque to the rotating shaft 12 of the rotary table through an intermediate member, which is set according to the specific application scenario here and will not be elaborated further.

[0050] A flame spraying mechanism 6, which includes a first nozzle 61 and a second nozzle 62 for spraying the upper surface and side surface of the dock fastening bolt 100; In implementation, a supersonic flame spraying mechanism can be used. The specific structure of the flame spraying is not limited here and can be set according to the specific application scenario and will not be elaborated further.

[0051] Specifically, the number of the bolt clamping parts is the same as that of the second gears 3 and they are in one-to-one correspondence.

[0052] Please combine with Figures 2 to 6As shown, specifically, a protrusion 101 is provided on the dock fastening bolt 100, and a corresponding rotary engaging portion 301 is provided on the gear shaft 31 of the second gear 3. The protrusion 101 cooperates with the rotary engaging portion 301 to transmit the rotation of the second gear 2 to the dock fastening bolt 100, causing the dock fastening bolt 100 to rotate on the rotary table 1.

[0053] In a specific embodiment, Figures 3 to 6 As shown, a form of implementation of the protrusion 101 and the corresponding rotary engaging portion 301 is given. An L-shaped protrusion is machined at the lower end of the dock fastening bolt 100, and a matching L-shaped groove is machined at the upper end of the gear shaft 31 of the second gear 3. By installing the L-shaped protrusion at the lower end of the dock fastening bolt 100 on the L-shaped groove at the upper end of the gear shaft 31, the gear shaft of the second gear 3 drives the dock fastening bolt 100 to rotate. As for the specific structures of the protrusion 101 and the corresponding rotary engaging portion 301, they can be set according to the application scenario and positioning accuracy, as long as the gear shaft 31 of the second gear 3 can be fixedly connected to the dock fastening bolt 100 and drive the dock fastening bolt 100 to rotate, and no specific limitation is made here. It can be understood that the protrusion 31 and the corresponding rotary engaging portion 301 can also be fixedly connected to the dock fastening bolt 100 and the gear shaft 31 of the second gear 3 respectively through a detachable intermediate structure, and no limitation is made here.

[0054] Please continue to refer to Figure 1 As shown, each bolt engaging portion includes a bolt loading through hole 111 and a spraying support portion 112 provided on the rotary table 1. The axis of the dock fastening bolt 100 and the axis of the bolt loading through hole 111 are collinear with the axis of the corresponding first bearing 4 and the axis of the second gear 3. The diameter of the bolt loading through hole 111 is larger than the outer diameter of the screw of the dock fastening bolt 100.

[0055] Specifically, the spraying support portion 112 includes a support block 1121 and an elastic structure 1122. The support block 1121 is used to support the lower end face of the bolt head of the dock fastening bolt 100 or block the screw of the dock fastening bolt 100, and the elastic structure 1122 is used to adjust the support height of the support block 1121.

[0056] In this embodiment, the elastic mechanism 1122 adjusts its height to make the lower end face of the bolt head of the dock fastening bolt 100 level with or slightly higher than the upper end face of the elastic mechanism 1122. The first nozzle 61 is level with the bolt head of the dock fastening bolt 100, and the range of the flame ejected by the first nozzle 61 matches the side surface of the dock fastening bolt 100, so as to realize the flame spraying of the side surface of the dock fastening bolt 100 by the flame spraying mechanism 6, avoid the spraying spatter of the spraying flame on the bolt screw, and also support the lower end face of the dock fastening bolt 100 to keep the dock fastening bolt 100 stable.

[0057] Specifically, each of the bolt clamping portions is evenly distributed around the rotation center of the rotary table 1, and the distances from the axes of the bolt loading through holes 111 to the rotation center of the rotary table 1 are the same, and the angles formed by the adjacent bolt loading through holes 111 and the rotation center of the rotary table 1 are the same.

[0058] In practice, according to the size of the rotary table 1 and the size of the dock fastening bolt 100, 10 or 12 equally spaced bolt clamping portions can be evenly arranged on the circumference of the rotary table 1. Preferably, the dock fastening bolts are arranged as closely as possible on the circumference of the rotary table 1 to reduce the size of the gap between adjacent dock fastening bolts and fully improve the utilization rate of the rotary table.

[0059] Specifically, the number of teeth of the second gear 3 satisfies that when the first gear 2 rotates a first displacement angle, the second gear 3 rotates 180° to 360°.

[0060] Please refer to Figure 8 As shown, the first displacement angle is the angle a formed by the adjacent bolt loading through hole 111 and the rotation center of the rotary table 1.

[0061] In the implementation of the present invention, during the process of the rotation angle a of the rotary table 1, the dock fastening bolt 100 needs to be rotated at least half a turn through gear meshing to realize the spraying of one dock fastening bolt 100, so that at least half of the outer sides of all the bolts are sprayed after the rotary table 1 rotates one week, and all the outer sides of all the bolts are completely sprayed after the rotary table 1 rotates the second week.

[0062] In this embodiment, if the number of teeth of the first gear 2 is Z1 and the number of teeth of the second gear 3 is Z2; and the number of the dock fastening bolts 100 processed simultaneously is 10, then the included angle a is 360° / 10 = 36°. When the first gear 2 rotates 36°, the second gear 3 rotates 360°, thus completing the processing of one dock fastening bolt 100 without affecting the completion of the processing of the dock fastening bolt 100 and the processing of the next dock fastening bolt 100.

[0063] In this embodiment, Z1 / Z2 = W2 / W1 = 360 / a = 360° / 36° = 10, that is, the number of teeth of the first gear 2 is 10 times that of the second gear 3;

[0064] Specifically, the support table 7 is fixed on the horizontal bottom surface through the support legs 71, and a support through hole 72 matching the outer diameter of the second bearing 5 is arranged on the support table 7, so that the support table 7 is fixedly connected to the outer diameter of the second bearing 5.

[0065] Please refer to Figure 7 as shown, which is a schematic diagram of the flame spraying mechanism part of the present utility model;

[0066] The flame spraying mechanism 6 further includes a first moving component. The first moving component includes a first slide rail 611 arranged in the vertical direction and a first sliding bracket 612. The first sliding bracket 612 moves on the first slide rail 611, and the first spray head 61 is fixedly connected to the first sliding bracket 612. The flame spraying direction of the first spray head 61 is the horizontal direction.

[0067] Specifically, the flame spraying mechanism 6 further includes a second moving component, wherein,

[0068] The second moving component includes a second slide rail 621 arranged along the diameter direction of the rotary table 1 and a second sliding bracket 622. The second sliding bracket 622 moves on the second slide rail 621, and the second spray head 62 is fixedly connected to the second sliding bracket 622. The flame spraying direction of the second spray head 62 is the vertical direction.

[0069] In implementation, the implementation forms of the first moving component and the second moving component are not specifically set, as long as they can adjust the positions of the first spray head and the second spray head. They can be set according to the specific spraying scenario and will not be elaborated here.

[0070] Specifically, it further includes a housing 9 arranged outside the rotary table 1 and the flame spraying mechanism 6, which is used to isolate the spraying flame and maintain the ambient temperature of the dock fastening bolt 100;

[0071] The housing 9 includes a temperature adjustment mechanism for adjusting the ambient temperature of the dock fastening bolt 100.

[0072] It can be understood that since the embodiment of the present utility model adopts the supersonic flame spraying technology, when the ambient temperature is too high, the temperature adjustment mechanism adjusts the ambient temperature until the ambient temperature is suitable for production, ensuring the processing quality of the dock fastening bolt 100 and preventing damage to the dock fastening bolt 100 due to excessive temperature. As for the specific implementation form of the temperature adjustment mechanism, it is not specifically set here. It can use at least one of ventilation, heat preservation, heating, and refrigeration to adjust the internal environment of the housing, which will not be elaborated here.

[0073] The working principle and working process of the present utility model are as follows:

[0074] The driving motor 8 is connected to the rotating shaft 12 of the rotating workbench 1 and the first gear 2. The outer diameter of the first bearing 4 and the spraying support part 112 are connected to the workbench 1. The driving motor 8 drives the rotating shaft 12 to rotate by outputting driving force, drives the workbench 1 to rotate around the rotating shaft 12, and further drives the spraying support part 112 to rotate synchronously. The dock fastening bolt 100 is located on the spraying support part 112 due to gravity and rotates synchronously with the rotation of the spraying support part.

[0075] The first gear 2 is externally meshed with the second gear 3. The driving force rotates the first gear 2, thereby driving the second gear 3 to rotate, and further driving the gear shaft 31 of the second gear to rotate. The gear shaft 31 of the second gear is connected to the inner diameter of the first bearing 4. A convex part 101 is provided on the dock fastening bolt 100, and a corresponding rotating clamping part 301 is provided on the gear shaft 31 of the second gear 3. The convex part 101 cooperates with the rotating clamping part 301 to transmit the rotation of the second gear 2 to the dock fastening bolt 100, causing the dock fastening bolt 100 to rotate self - rotatably on the rotating workbench 1.

[0076] In the above process, since the dock fastening bolt 100 rotates both self - rotatably and revolutionarily, during the rotation angle a of the rotating workbench 1, the dock fastening bolt 100 rotates at least half a turn through gear meshing to achieve spraying of one dock fastening bolt 100. Thus, after the rotating workbench 1 rotates one week, at least half of the outer sides of all bolts are sprayed, and after the rotating workbench 1 rotates the second week, all outer sides of all bolts are completely sprayed. Furthermore, the flame spraying mechanism 6 realizes flame spraying on the upper surface and side surfaces of the dock fastening bolt 100.

[0077] Moreover, the rotating shaft 12 is coaxial with the first gear 2, and the outer diameter of the second bearing 5 is connected to the support platform 7. The support platform 7 supports the entire production device by supporting the second bearing 5.

[0078] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A production device for corrosion-resistant steel used in dock fasteners, characterized in that, Comprising: A rotary table, which is provided with a plurality of bolt clamping parts for loading a plurality of dock fastening bolts; A first gear, which is fixedly connected to the rotary table, and the axis of the first gear coincides with the rotation center of the rotary table to rotate around the rotation center of the rotary table; A plurality of second gears, which are respectively externally meshed with the first gear, and a single second gear is connected to the rotary table through a single first bearing to transmit the rotation of the first gear to the second gear to drive the dock fastening bolts to rotate on their own axes on the rotary table and revolve around the rotation center of the rotary table with the rotary table; A second bearing, whose inner diameter is connected to the rotating shaft of the rotary table and whose outer diameter is connected to the support platform, so that the support platform supports the rotation of the rotary table; A driving motor, which is connected to the rotating shaft of the rotary table to drive the rotary table to rotate; A flame spraying mechanism, which includes a first spray head and a second spray head for spraying the upper surface and side surface of the dock fastening bolts; The number of the bolt clamping parts is the same as and corresponds one by one to the number of the second gears.

2. The production device of the corrosion-resistant steel for dock fasteners according to claim 1, characterized in that, A convex part is arranged on the dock fastening bolt, and a corresponding rotary clamping part is arranged on the gear shaft of the second gear. The convex part cooperates with the rotary clamping part to transmit the rotation of the second gear to the dock fastening bolt, so that the dock fastening bolt rotates on its own axis on the rotary table.

3. The production device of the corrosion-resistant steel for dock fasteners according to claim 2, characterized in that, A single bolt clamping part includes a bolt loading through hole and a spraying support part arranged on the rotary table. The axis of the dock fastening bolt and the axis of the bolt loading through hole are collinear with the axis of the corresponding first bearing and the axis of the second gear. The aperture of the bolt loading through hole is larger than the outer diameter of the screw rod of the dock fastening bolt.

4. The production device of the corrosion-resistant steel for dock fasteners according to claim 3, characterized in that, The spraying support part includes a support block and an elastic structure. The support block is used to support the lower end face of the bolt head of the dock fastening bolt or block the screw rod of the dock fastening bolt, and the elastic structure is used to adjust the support height of the support block.

5. The production device of the corrosion-resistant steel for dock fasteners according to claim 3, characterized in that, Each bolt clamping part is evenly distributed around the rotation center of the rotary table. The distances from the centers of the bolt loading through holes to the rotation center of the rotary table are the same, and the angles formed by adjacent bolt loading through holes and the rotation center of the rotary table are the same.

6. The production device of the corrosion-resistant steel for dock fasteners according to claim 5, characterized in that, The number of teeth of the second gear satisfies that when the first gear rotates a first displacement angle, the second gear rotates 180° - 360°; The first displacement angle is the angle formed by an adjacent bolt loading through hole and the rotation center of the rotary table.

7. The production device of the corrosion-resistant steel for dock fasteners according to claim 1, characterized in that, The support platform is fixed on the horizontal bottom surface through support legs. A support through hole matching the outer diameter of the second bearing is arranged on the support platform, so that the support platform is fixedly connected to the outer diameter of the second bearing.

8. The production device of the corrosion-resistant steel for dock fasteners according to claim 1, characterized in that, The flame spraying mechanism further includes a first moving component, The first moving component includes a first slide rail and a first sliding bracket arranged in the vertical direction. The first sliding bracket moves on the first slide rail, and the first spray head is fixedly connected to the first sliding bracket. The flame spraying direction of the first spray head is the horizontal direction.

9. The production device of the corrosion-resistant steel for dock fasteners according to claim 1, characterized in that, The flame spraying mechanism further includes a second moving component, wherein, The second moving component includes a second slide rail and a second sliding bracket arranged along the diameter direction of the rotary worktable. The second sliding bracket moves on the second slide rail, and the second spray head is fixedly connected to the second sliding bracket. The flame ejection direction of the second spray head is the vertical direction.

10. The production device of the corrosion-resistant steel for dock fasteners according to claim 1, characterized in that, It further includes a housing arranged outside the rotary worktable and the flame spraying mechanism, which is used to isolate the spraying flame and maintain the ambient temperature of the dock fastening bolts. The housing includes a temperature adjustment mechanism, which is used to adjust the ambient temperature of the dock fastening bolts.

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