Air vane correction tool
By designing a rudder shaft lifter and an automatic adjustment device for the air rudder correction fixture, the problem of time-consuming and labor-intensive manual adjustment in the existing technology has been solved, realizing automatic correction and position adjustment of the air rudder and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU WANSHI PRE COMPOSITE MATERIAL TECH CO LTD
- Filing Date
- 2023-12-19
- Publication Date
- 2026-07-24
AI Technical Summary
Existing aerodynamic rudder correction fixtures require manual adjustment, which is time-consuming and labor-intensive, reducing the correction speed.
An air rudder straightening fixture was designed, including a rudder shaft lifter, a height limiting device, a sleeve pressing device, and a straightening connecting flange. Automatic straightening is achieved by rotating the air rudder shaft inside the straightening fixture. Combined with the combination of connecting bolts, positioning nuts, and collars, the rudder shaft position is automatically adjusted.
Automatic correction of the air rudder is achieved, which improves production efficiency and conforms to the design of compact layout and optimal efficiency. No manual adjustment is required, which improves the correction speed.
Smart Images

Figure CN117696762B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air rudder technology, specifically to an air rudder correction fixture. Background Technology
[0002] An air rudder is a control valve installed on both sides of a ship. Its main function is to control the ballast water in the hull or to discharge it overboard. It is mainly used to adjust the ship's center of gravity and stability to meet the needs of navigation, loading and unloading cargo, and to prevent accidents such as broken belts. In addition, it can also play a certain role in assisting navigation by adjusting the size of the sails.
[0003] Existing aerodynamic rudder correction fixtures require operators to adjust the equipment and then use a matching device for automatic correction, which is time-consuming and labor-intensive, reducing the speed of aerodynamic rudder correction. To address this, we propose an aerodynamic rudder correction fixture. Summary of the Invention
[0004] The purpose of this invention is to provide an air rudder correction fixture that solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an air rudder straightening fixture, including a rudder shaft lifter;
[0006] A height limiting device is provided below the rudder shaft lifter;
[0007] A sleeve pressing device is provided below the height limiting device;
[0008] A straightening connection flange is provided below the expansion sleeve pressing device, and the rudder shaft lifter includes a collar. This invention is mainly used for automatic correction of the air rudder position. By rotating the air rudder shaft in the straightening fixture, the position of the air rudder is adjusted to achieve automatic correction and locking of the air rudder position in the mold. While improving production efficiency, the design conforms to the principles of compact layout and optimal efficiency. Compared with the prior art, this invention can be automatically corrected without manual adjustment by equipment and can be used in conjunction with a rotating device.
[0009] Preferably, the outer wall of the collar is threaded with a connecting bolt, and the other end of the connecting bolt is slidably connected with a positioning nut. The outer wall of the positioning nut is slidably connected to the inner wall of the collar. The rudder shaft lifting device mainly consists of three parts: the connecting bolt, the positioning nut, and the collar. The connecting bolt tightly connects the positioning nut and the collar. By rotating the collar on the rudder shaft lifting device, the positioning nut is driven to rotate and lift the pin on the straightening connecting flange, which further drives the rudder shaft to rise.
[0010] Preferably, the height limiting device includes a height limiting block, and a height limiting adjustment device is fixedly installed at the bottom of the height limiting block. The height limiting device is used to limit the upper limit of the rudder shaft height to ensure its height dimensional accuracy. The height limiting block is used to limit the height of the rudder shaft, and the upper limit position of the rudder shaft height can be adjusted by rotating the height limiting adjustment device.
[0011] Preferably, the expansion sleeve pressing device includes a positioning ring slidably connected to the inner wall of the positioning nut, a pin lifting ring fixedly installed at the bottom of the positioning ring, a positioning sleeve pressing ring fixedly installed on the inner wall of the pin lifting ring, the top inner wall of the positioning sleeve pressing ring slidably connected to the bottom outer side of the limiting height adjustment device, and an elastic centering expansion sleeve fixedly installed at the bottom of the positioning sleeve pressing ring. The elastic centering expansion sleeve on the expansion sleeve pressing device adopts a copper sleeve slotted structure. By pressing down the copper sleeve and fitting it with the rudder shaft, it achieves automatic centering. The positioning ring is connected to the pressing ring. By rotating the positioning ring, the pressing pin is rotated, which further drives the expansion sleeve to press down. By rotating the rudder shaft lifting ring, the pin lifting ring is driven to lift the rudder shaft a certain distance.
[0012] Preferably, the straightening connecting flange includes a connecting plate, the bottom inner wall of which is threaded with a quick-locking rivet, and the bottom inner wall of which is fixedly installed with a bushing nut. The inner wall of the bushing nut is slidably connected to a rudder shaft. The lower part of the straightening connecting flange is connected to the mold via a zero-point positioning device, and the upper part is the bushing nut, which allows the rudder shaft lifting nut or the expansion sleeve pressing device to rotate on it. The rudder shaft passes through the middle of the bushing nut, and the position of the air rudder is corrected by adjusting the rudder shaft lifting device or the expansion sleeve pressing device.
[0013] Preferably, the bottom outer wall of the limiting height adjustment device is slidably connected to the top inner wall of the positioning sleeve lower pressure ring, and the top outer wall of the positioning sleeve lower pressure ring is fixedly connected to the inner wall of the positioning ring. By slidably connecting the positioning sleeve lower pressure ring limiting height adjustment device, it is convenient for operators to install and disassemble it.
[0014] Preferably, the bottom inner wall of the elastic centering expansion sleeve is fixedly connected to the top inner wall of the bushing nut, and the bottom outer wall of the bushing nut is fixedly connected to the inner wall of the connecting plate.
[0015] Preferably, the top outer wall of the elastic centering expansion sleeve is fixedly connected to the inner wall of the lower pressure ring of the positioning sleeve, and the bottom inner wall of the elastic centering expansion sleeve is fixedly connected to the inner wall of the positioning nut.
[0016] This invention provides an aerodynamic rudder straightening fixture. This aerodynamic rudder straightening fixture has the following beneficial effects:
[0017] (1) The air rudder straightening fixture of the present invention is mainly used for automatic straightening of the position of the air rudder. By rotating the air rudder shaft in the straightening fixture, the position of the air rudder is adjusted to achieve automatic straightening and locking of the position of the air rudder in the mold. While improving production efficiency, the design conforms to the principles of compact layout and optimal efficiency. Compared with the prior art, the present invention can be automatically straightened without manual adjustment by equipment and can be used with a rotating device.
[0018] (2) The air rudder straightening fixture, the rudder shaft lifting device is mainly composed of three parts: connecting bolts, positioning nuts and collar. The connecting bolts tightly connect the positioning nuts and collar. By rotating the collar on the rudder shaft lifting device, the positioning nuts are driven to rotate the lifting pin on the straightening connecting flange, which further drives the rudder shaft to rise. The height limiting device is used to limit the upper limit of the rudder shaft height to ensure its height dimension accuracy. The height limiting block is used to limit the height of the rudder shaft. The upper limit position of the rudder shaft height can be adjusted by rotating the height limiting adjustment device.
[0019] (3) The air rudder straightening fixture has an elastic positioning expansion sleeve on the expansion sleeve pressing device with a copper sleeve slotted structure. The copper sleeve is pressed down and fits into the rudder shaft to achieve automatic centering. The positioning ring is connected to the pressing ring. By rotating the positioning ring, the pressing pin is rotated, which further drives the expansion sleeve to press down. By rotating the collar on the rudder shaft lifting device, the pin lifting ring is driven to lift the rudder shaft a certain distance. The lower part of the straightening connecting flange is connected to the mold through the zero point positioning device. The upper part is the bushing nut, which can facilitate the rotation of the rudder shaft lifting nut or the expansion sleeve pressing device on it. The rudder shaft passes through the middle of the bushing nut. The position of the air rudder is straightened by adjusting the rudder shaft lifting device or the expansion sleeve pressing device. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural schematic diagram of an air rudder correction fixture according to the present invention;
[0021] Figure 2 This is a schematic diagram of the rudder shaft lifting device of an air rudder straightening fixture according to the present invention;
[0022] Figure 3 This is a schematic diagram of the height limiting device of an air rudder correction fixture according to the present invention;
[0023] Figure 4 This is a schematic diagram of the expansion sleeve pressing device of an air rudder correction fixture according to the present invention;
[0024] Figure 5 This is a schematic diagram of the straightening connection flange of an air rudder straightening fixture according to the present invention.
[0025] In the diagram: 100, rudder shaft lifter; 101, connecting bolt; 102, positioning nut; 103, collar; 200, height limiting device; 201, height limiting block; 202, height limiting adjustment device; 300, expansion sleeve pressing device; 301, positioning ring; 302, positioning sleeve pressing ring; 303, pin lifting ring; 304, elastic centering expansion sleeve; 400, straightening connecting flange; 401, connecting plate; 402, bushing nut; 403, quick-locking rivet; 404, rudder shaft. Detailed Implementation
[0026] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.
[0027] Example 1
[0028] A preferred embodiment of the aerodynamic rudder correction fixture provided by the present invention is as follows: Figures 1 to 5 As shown: An air rudder straightening fixture, including a rudder shaft lifter 100;
[0029] A height limiting device 200 is provided below the steering shaft lifter 100;
[0030] A sleeve pressing device 300 is provided below the height limiting device 200;
[0031] A straightening connection flange 400 is provided below the expansion sleeve pressing device 300, and the rudder shaft lifter 100 includes a collar 103. This invention is mainly used for the automatic straightening of the air rudder position. By rotating the air rudder shaft in the straightening fixture, the position of the air rudder is adjusted to achieve automatic straightening and locking of the air rudder position in the mold. While improving production efficiency, the design conforms to the principles of compact layout and optimal efficiency. Compared with the prior art, this invention can be automatically straightened without manual adjustment by equipment and can be used in conjunction with a rotating device.
[0032] The outer wall of the collar 103 is threaded with a connecting bolt 101, and the other end of the connecting bolt 101 is slidably connected with a positioning nut 102. The outer wall of the positioning nut 102 is slidably connected to the inner wall of the collar 103. The rudder shaft lifting device is mainly composed of three parts: the connecting bolt, the positioning nut, and the collar. The connecting bolt tightly connects the positioning nut and the collar. By rotating the collar on the rudder shaft lifting device, the positioning nut is driven to rotate and lift the pin on the straightening connecting flange, which further drives the rudder shaft to rise.
[0033] In this embodiment, the rudder shaft lifting assembly mainly consists of three parts: connecting bolts, positioning nuts, and collars. The connecting bolts tightly connect the positioning nuts and collars. By rotating the collars on the rudder shaft lifting assembly, the positioning nuts are driven to rotate and lift the pins on the straightening connecting flange, which further drives the rudder shaft to rise.
[0034] Example 2
[0035] Based on Example 1, a preferred embodiment of the air rudder correction fixture provided by the present invention is as follows: Figures 1 to 5 As shown: The height limiting device 200 includes a height limiting block 201. A height limiting adjustment device 202 is fixedly installed at the bottom of the height limiting block 201. The height limiting device is used to limit the upper limit of the rudder shaft height to ensure its height dimension accuracy. The height limiting block is used to limit the height of the rudder shaft, and the upper limit position of the rudder shaft height can be adjusted by rotating the height limiting adjustment device.
[0036] In this embodiment, the height limiting device is used to limit the upper limit of the rudder shaft height to ensure its height dimensional accuracy. The height limiting block is used to limit the height of the rudder shaft, and the position of the upper limit of the rudder shaft height can be adjusted by rotating the height limiting adjustment device.
[0037] Example 3
[0038] Based on Embodiments 1 and 2, a preferred embodiment of the air rudder correction fixture provided by the present invention is as follows: Figures 1 to 5 As shown: The expansion sleeve pressing device 300 includes a positioning ring 301 that is slidably connected to the inner wall of the positioning nut 102. A pin lifting ring 303 is fixedly installed at the bottom of the positioning ring 301. A positioning sleeve pressing ring 302 is fixedly installed on the inner wall of the pin lifting ring 303. The top inner wall of the positioning sleeve pressing ring 302 is slidably connected to the bottom outer side of the limit height adjustment device 202. An elastic centering expansion sleeve 304 is fixedly installed at the bottom of the positioning sleeve pressing ring 302. The elastic positioning expansion sleeve on the expansion sleeve pressing device adopts a copper sleeve slotted structure. By pressing down the copper sleeve and fitting it with the rudder shaft, it achieves automatic centering. The positioning ring is connected to the pressing ring. By rotating the positioning ring, the pressing pin is rotated, which further drives the expansion sleeve to press down. By rotating the rudder shaft lifting ring, the pin lifting ring is driven to lift the rudder shaft a certain distance.
[0039] In this embodiment, the elastic positioning expansion sleeve on the expansion sleeve pressing device adopts a copper sleeve slotted structure. By pressing down the copper sleeve and fitting it with the rudder shaft, it achieves automatic centering. The positioning ring is connected to the pressing ring. By rotating the positioning ring, the pressing pin is driven to rotate, which further drives the expansion sleeve to press down. By rotating the rudder shaft lifting ring, the pin lifting ring is driven to lift the rudder shaft a certain distance.
[0040] Furthermore, the straightening connecting flange 400 includes a connecting plate 401. The bottom inner wall of the connecting plate 401 is threaded with a quick-locking rivet 403. A bushing nut 402 is fixedly installed on the bottom inner wall of the connecting plate 401. A rudder shaft 404 is slidably connected to the inner wall of the bushing nut 402. The lower part of the straightening connecting flange is connected to the mold through a zero-point positioning device, and the upper part is the bushing nut. This allows the rudder shaft lifting nut or the expansion sleeve pressing device to rotate on it. The rudder shaft passes through the middle of the bushing nut. The position of the air rudder is corrected by adjusting the rudder shaft lifting device or the expansion sleeve pressing device.
[0041] Furthermore, the bottom outer wall of the limiting height adjustment device 202 is slidably connected to the top inner wall of the positioning sleeve lower pressure ring 302, and the top outer wall of the positioning sleeve lower pressure ring 302 is fixedly connected to the inner wall of the positioning ring 301. By slidably connecting the positioning sleeve lower pressure ring 302 and the limiting height adjustment device 202, it is convenient for operators to install and disassemble it.
[0042] Furthermore, the bottom inner wall of the elastic centering expansion sleeve 304 is fixedly connected to the top inner wall of the bushing nut 402, and the bottom outer wall of the bushing nut 402 is fixedly connected to the inner wall of the connecting plate 401.
[0043] In addition, the top outer wall of the elastic centering expansion sleeve 304 is fixedly connected to the inner wall of the positioning sleeve lower pressure ring 302, and the bottom inner wall of the elastic centering expansion sleeve 304 is fixedly connected to the inner wall of the positioning nut 102.
[0044] Working principle: Assemble the rudder shaft straightening device onto the mold, loosen the top cover screws, raise the top cover to a certain height, causing the top cover pin to separate from the left and right molds, separating the left and right half molds by a certain distance, straightening the rudder shaft, the automatic clamping rotating upper chuck automatically descends to the lower nut locking position, the chuck clamps the lower nut and rotates it to drive the rudder shaft to rise, when the rudder shaft reaches the upper limit position, the chuck releases, the automatic clamping rotating upper chuck automatically descends to the upper nut position, the chuck clamps the upper nut and rotates it to drive the expansion sleeve to fall, when the expansion sleeve and rudder shaft are fully engaged, the chuck releases, the automatic clamping rotating returns to the upper limit position, the straightening is complete, place the top cover and rudder shaft together into the left and right molds, close the left and right half molds, and assemble the rear cover onto the mold.
[0045] The above are merely illustrative embodiments of the present invention and are not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention. Furthermore, it should be noted that the components of the present invention are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, the present invention naturally covers other combinations and specific applications related to the inventive points of this case.
Claims
1. An air rudder straightening fixture, comprising a rudder shaft lifter (100). A height limiting device (200) is provided below the steering shaft lifter (100). Below the height limiting device (200) is a sleeve pressing device (300). A straightening connection flange (400) is provided below the expansion sleeve pressing device (300), characterized in that: The rudder shaft lifter (100) includes a collar (103); The outer wall of the collar (103) is threaded with a connecting bolt (101), and the other end of the connecting bolt (101) is slidably connected with a positioning nut (102). The outer wall of the positioning nut (102) is slidably connected to the inner wall of the collar (103). The height limiting device (200) includes a height limiting block (201), and a height limiting adjustment device (202) is fixedly installed at the bottom of the height limiting block (201). The expansion sleeve pressing device (300) includes a positioning ring (301) that is slidably connected to the inner wall of the positioning nut (102). A pin lifting ring (303) is fixedly installed at the bottom of the positioning ring (301). A positioning sleeve pressing ring (302) is fixedly installed on the inner wall of the pin lifting ring (303). The bottom outer wall of the limiting height adjustment device (202) is slidably connected to the top inner wall of the positioning sleeve pressing ring (302). The bottom inner wall of the elastic centering expansion sleeve (304) is fixedly connected to the top inner wall of the bushing nut (402), and the bottom outer wall of the bushing nut (402) is fixedly connected to the inner wall of the connecting plate (401). The top outer wall of the elastic centering expansion sleeve (304) is fixedly connected to the inner wall of the positioning sleeve lower pressure ring (302), and the bottom inner wall of the elastic centering expansion sleeve (304) is fixedly connected to the inner wall of the positioning nut (102).
2. The aerodynamic rudder correction fixture according to claim 1, characterized in that: The straightening connection flange (400) includes a connecting plate (401), the bottom inner wall of the connecting plate (401) is threaded with a quick-locking rivet (403), and the inner wall of the bushing nut (402) is slidably connected with a rudder shaft (404).
3. The air rudder correction fixture according to claim 1, characterized in that: The top outer wall of the positioning sleeve pressure ring (302) is fixedly connected to the inner wall of the positioning ring (301).