A detection device for a valve special for a ship steering engine

Abstract

The utility model relates to ship steering engine detection device technical field, especially a kind of detection device of valve special for ship steering engine, including installation base, the top of installation base is provided with two sliding sliding table, the upper end of sliding table is fixedly installed with mounting block, the top of mounting block is provided with the first connecting block of liftable, the upper end of first connecting block is fixedly installed with connecting bucket, connecting bucket is round bucket and the one end of connecting bucket is provided with circular opening. The utility model is vertically slid in T-shaped lifting groove by lifting block, in combination with the fixation of locking screw column between second connecting block and limit block, the flexible adjustment of the height of connecting bucket is realized, these structures cooperate with each other, not only solve the sealing butt joint problem caused by the size difference of valve body due to traditional clamp, but also ensure the stability and repeat accuracy of adjustment process by mechanical linkage, significantly shorten detection preparation time.

Description

Technical Field

[0001] This utility model relates to the technical field of ship steering gear testing devices, and in particular to a testing device for a special valve for ship steering gears. Background Technology

[0002] As a core control component of the hydraulic steering gear system, the sealing performance and reliability of the dedicated valve for ship steering gear directly affect the ship's maneuvering safety and navigation stability. In actual working conditions, these valves must withstand frequent oil pressure impacts and media corrosion, and long-term use can easily lead to failure phenomena such as sealing surface wear and valve body leakage. Traditional testing methods mostly use fixed sealing fixtures and single-point pressure tests, which are difficult to adapt to the installation requirements of valve bodies of different specifications and cannot simulate the progressive failure process of seals under dynamic pressure. Existing devices lack flexible adjustment functions for valve body width and docking height, resulting in poor test adaptability; at the same time, conventional airtightness tests can only obtain static sealing results and cannot reflect the pressure tolerance limit of the valve under variable load conditions. In addition, the lack of visibility of spring compression and docking status during the testing process further increases the risk of operational errors. Therefore, we propose a testing device for dedicated valves for ship steering gear. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a detection device for a special valve for ship steering gear.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: It includes a mounting base, with two sliding platforms on top of the mounting base. A mounting block is fixedly mounted on the upper end of each sliding platform. A first, liftable connecting block is mounted above the mounting block. A connecting barrel is fixedly mounted on the upper end of the first connecting block. The connecting barrel is circular, with a circular opening at one end. A fixed connecting cylinder is installed inside the circular opening of the connecting barrel. A sliding docking cylinder is installed between the connecting barrel and the connecting cylinder. A spring is fixedly mounted on the end face of the docking cylinder. A fixed pressure detector is installed on the connecting cylinder.

[0005] As a preferred technical solution of this utility model, two sliding grooves are provided on the upper side of the mounting base. The sliding grooves have an inverted "T" shaped cross section. A slider is fixedly installed on the bottom side of the sliding table at the position corresponding to the sliding groove. The slider is slidably installed inside the sliding groove.

[0006] As a preferred embodiment of this utility model, the upper side of the mounting base is provided with a mounting groove, and a sliding seat is fixedly installed on the bottom side of the sliding table corresponding to the position of the mounting groove. A rotary motor is fixedly installed on the side of the mounting base, and a lifting groove is fixedly installed on the output end of the rotary motor. The lifting groove is threadedly connected to two sliding seats, and the two sliding seats rotate in opposite directions.

[0007] As a preferred technical solution of this utility model, a lifting groove is provided on the upper side of the sliding table. The lifting groove is a "T" shaped groove. A lifting block is slidably installed inside the lifting groove. The lifting block is a rectangular block. A second connecting block is fixedly installed on the side of the lifting groove. The lifting block and the second connecting block are slidably installed inside the lifting groove. The lifting block is fixedly installed on the bottom side of the first connecting block.

[0008] As a preferred technical solution of this utility model, the side of the mounting block is fixedly installed with limit blocks on both sides of the second connecting block. The side of the limit blocks is provided with threaded holes at equal intervals. The side of the second connecting block is provided with connecting threaded holes that are compatible with the threaded holes. Locking threaded posts are provided in the connecting threaded holes and the inside of the threaded holes on the side of the second connecting block.

[0009] As a preferred embodiment of this utility model, the side of the docking cylinder is provided with marking grooves at equal intervals.

[0010] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. This utility model achieves rapid adaptation and precise positioning of valve bodies of different specifications through a multi-dimensional adjustment structure of a sliding table and a lifting block, effectively improving the versatility and operational efficiency of the testing device. Specifically, the slider at the bottom of the sliding table cooperates with the inverted T-shaped groove on the mounting base, allowing the sliding table to move smoothly in the horizontal direction, thereby adapting to the installation requirements of valve bodies of different widths. The rotary motor drives the lifting groove to rotate, and through the threaded linkage with the sliding seat with the opposite rotation direction, it drives the two sliding tables to move synchronously in opposite directions, ensuring the concentric alignment of the connecting cylinders at both ends of the valve body. At the same time, the vertical sliding of the lifting block in the T-shaped lifting groove, combined with the fixing of the second connecting block and the limiting block through the locking threaded column, realizes the flexible adjustment of the height of the connecting cylinder. These structures work together to not only solve the sealing and docking problem caused by the difference in valve body size in traditional fixtures, but also ensure the stability and repeatability of the adjustment process through mechanical linkage, significantly shortening the test preparation time.

[0011] 2. This utility model achieves accurate measurement of dynamic compression sealing and multi-condition pressure limits through the synergistic effect of springs and pressure detectors, enhancing the reliability of test data and its engineering guidance value. The docking cylinder forms an elastic compression seal with the valve body end face through springs within the connecting barrel. The compression amount can be intuitively read through the marking groove, thereby quantifying the spring preload. During the airtightness test, the pressure detectors on both sides monitor the internal pressure changes of the valve body in real time. By controlling the movement of the sliding table, the compression force of the docking cylinder on the valve body is gradually increased, simulating the sealing behavior of the valve under actual load. The combination of the elastic deformation of the spring and the data acquisition of the pressure detectors can accurately record the leakage critical point of the valve under different compression pressures, thereby evaluating its sealing durability and failure threshold. This structural combination not only overcomes the limitations of traditional single-point testing, but also provides dynamic performance parameters for valve body material selection and structural optimization, strongly supporting the reliability design of ship steering gear valves. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the docking cylinder structure of this utility model; Figure 3 This is a schematic diagram of the connecting bucket structure of this utility model.

[0013] The components include: 1. Mounting base; 2. Sliding table; 3. Mounting block; 4. First connecting block; 5. Connecting barrel; 6. Connecting cylinder; 7. Spring; 8. Connecting cylinder; 9. Pressure detector; 10. Slide groove; 11. Slider; 12. Mounting groove; 13. Sliding seat; 14. Rotary motor; 15. Lifting groove; 16. Lifting block; 17. Limiting block; 18. Threaded hole; 19. Second connecting block; 20. Locking threaded post; 21. Marking groove. Detailed Implementation

[0014] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0015] Example: Figures 1 to 3As shown, a testing device for a special valve for a ship's steering gear includes a mounting base 1. Two sliding platforms 2 are arranged above the mounting base 1. A mounting block 3 is fixedly installed on the upper end of the sliding platform 2. A liftable first connecting block 4 is arranged above the mounting block 3. A connecting barrel 5 is fixedly installed on the upper end of the first connecting block 4. The connecting barrel 5 is a circular barrel with a circular opening at one end. A fixed connecting cylinder 8 is arranged inside the circular opening of the connecting barrel 5. A sliding docking cylinder 6 is arranged between the connecting barrel 5 and the connecting cylinder 8. A spring 7 is fixedly installed on the end face of the docking cylinder 6. A fixed pressure detector 9 is arranged on the connecting cylinder 8. Marking grooves 21 are equidistantly opened on the side of the docking cylinder 6.

[0016] More specifically, during use, the special valve is placed above the mounting base 1. The docking height of the docking cylinder 6 can be adjusted. The width of the rotating valve can be adjusted by moving the sliding table 2 to adjust the position of the docking cylinder 6. The two ends of the special valve are docked with the two docking cylinders 6 respectively. The two sliding tables 2 are controlled to move on the mounting base 1 so that the connection between the docking cylinder 6 and the special valve is squeezed and sealed. Two pressure detectors 9 are used to test the airtightness of the special valve. During the test, the pressure limit value under different compression pressures is detected by squeezing the connection position with the spring 7 and the docking cylinder 6. The distance from the docking cylinder 6 to the inside of the connecting barrel 5 is displayed intuitively through the marking groove 21 to determine the degree of compression of the spring 7.

[0017] like Figure 1 and Figure 2 As shown, specifically, two sliding grooves 10 are provided on the upper side of the mounting base 1. The cross-section of the sliding grooves 10 is an inverted "T" shape. Slider 11 is fixedly installed on the bottom side of the sliding table 2 at the position corresponding to the sliding grooves 10. The slider 11 is slidably installed inside the sliding grooves 10. The upper side of the mounting base 1 is provided with a mounting groove 12. Sliding seat 13 is fixedly installed on the bottom side of the sliding table 2 at the position corresponding to the mounting groove 12. A rotary motor 14 is fixedly installed on the side of the mounting base 1. A lifting groove 15 is fixedly installed at the output end of the rotary motor 14. The lifting groove 15 is threadedly connected to the two sliding seats 13. The two sliding seats 13 rotate in opposite directions.

[0018] More specifically, the rotary motor 14 is started, and the rotary motor 14 controls the lifting groove 15 to rotate. By controlling the rotation direction of the lifting groove 15, the two sliding seats 13 are driven to move relative to each other when the lifting groove 15 rotates. The sliding table 2 slides above the mounting base 1 through the sliding groove 10 and the slider 11.

[0019] like Figure 2 and Figure 3As shown, specifically, a lifting groove 15 is provided on the upper side of the sliding table 2. The lifting groove 15 is a "T" shaped groove. A lifting block 16 is slidably installed inside the lifting groove 15. The lifting block 16 is a rectangular block. A second connecting block 19 is fixedly installed on the side of the lifting groove 15. The lifting block 16 and the second connecting block 19 are slidably installed inside the lifting groove 15. The lifting block 16 is fixedly installed on the bottom side of the first connecting block 4. Limiting blocks 17 are fixedly installed on both sides of the side of the mounting block 3 corresponding to the two sides of the second connecting block 19. Threaded holes 18 are equidistantly provided on the side of the limiting block 17. Connecting threaded holes 18 that are adapted to the threaded holes 18 are provided on the side of the second connecting block 19. Locking threaded posts 20 are provided inside the connecting threaded holes 18 on the side of the second connecting block 19 and inside the threaded holes 18.

[0020] More specifically, the second connecting block 19 is locked by the locking threaded post 20, and the lifting block 16 slides inside the lifting groove 15 to adjust the height of the connecting barrel 5.

[0021] Working principle: First, place the ship steering gear valve to be tested in the center of the mounting base 1. Then, adjust according to the width of the valve body and the height of the connection port. Start the rotary motor 14 to drive the lifting groove 15 connected to it to rotate. Since the two sliding seats 13 threaded to the lifting groove 15 rotate in opposite directions, the rotation of the motor will synchronously drive the two sliding platforms 2 to move towards or away from each other along the inverted "T" shaped sliding groove 10 on the mounting base 1, thereby quickly adjusting the distance between the two docking cylinders 6 to adapt to the width of the valve body and adjust the docking. To adjust the height, loosen the locking threaded post 20, separating the second connecting block 19 from the limiting block 17. At this point, the first connecting block 4 and its lower lifting block 16 can be manually adjusted to slide up and down within the "T"-shaped lifting groove 15, thereby driving the entire connecting barrel 5 and docking cylinder 6 to rise and fall. Once the height is appropriate, screw the locking threaded post 20 back into the threaded holes 18 corresponding to the second connecting block 19 and the limiting block 17 to complete the fixing. After initial positioning, precisely control the rotary motor 14 again to move the two sliding tables 2 towards each other, pushing the docking cylinder 6 and the special... The interfaces at both ends of the valve are tightly connected. During the connection process, the connecting cylinder 6, after being subjected to the reaction force of the valve body, compresses the spring 7 inside the connecting barrel 5. The elastic force provided by the spring 7 ensures that the connecting surface can be continuously and stably pressed against the valve body interface, forming a flexible dynamic sealing connection. This can compensate for minor alignment errors and ensure the initial sealing effect. The operator can observe the marking groove 21 on the side of the connecting cylinder 6 to determine its length extending into the connecting barrel 5, thereby intuitively understanding the degree of compression of the spring 7 and indirectly assessing the current sealing pressure. After the sealing connection is established, test gas is injected into the closed pipeline system consisting of the connecting cylinder 6, the connecting barrel 8, and the inside of the special valve through an external air source. The pressure detectors 9 fixed on the two connecting barrels 8 begin to monitor the pressure changes in the system in real time. By controlling the movement of the sliding table 2, the squeezing force on the valve body can be gradually increased, i.e., the spring compression can be increased, simulating different pre-tightening force conditions. Under each preset squeezing pressure, the pressure is held for a period of time, and the reading of the pressure detector 9 is observed to see if it is stable, thereby detecting the airtightness of the valve body under this condition.

[0022] By gradually increasing the pressure, the pressure tolerance limit of the special valve under elastic sealing conditions can be measured, providing accurate data support for evaluating its sealing performance and reliability.

[0023] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A testing device for a special valve for a ship's steering gear, comprising a mounting base (1), characterized in that, Two sliding platforms (2) are provided above the mounting base (1). A mounting block (3) is fixedly installed on the upper end of the sliding platform (2). A first connecting block (4) that can be raised and lowered is provided above the mounting block (3). A connecting barrel (5) is fixedly installed on the upper end of the first connecting block (4). The connecting barrel (5) is a circular barrel and a circular opening is provided at one end of the connecting barrel (5). A fixed connecting cylinder (8) is provided inside the circular opening of the connecting barrel (5). A sliding docking cylinder (6) is provided between the connecting barrel (5) and the connecting cylinder (8). A spring (7) is fixedly installed on the end face of the docking cylinder (6). A fixed pressure detector (9) is provided on the connecting cylinder (8).

2. The detection device for a special valve for a ship's steering gear according to claim 1, characterized in that, The mounting base (1) has two sliding grooves (10) on its upper side. The sliding grooves (10) have an inverted "T" shape in cross section. The bottom side of the sliding table (2) is fixedly installed with sliders (11) at the positions corresponding to the sliding grooves (10). The sliders (11) are slidably installed inside the sliding grooves (10).

3. The detection device for a special valve for a ship's steering gear according to claim 2, characterized in that, The mounting base (1) has a mounting groove (12) on its upper side. The sliding table (2) has a sliding seat (13) fixedly installed on its bottom side corresponding to the mounting groove (12). A rotary motor (14) is fixedly installed on the side of the mounting base (1). A lifting groove (15) is fixedly installed at the output end of the rotary motor (14). The lifting groove (15) is threadedly connected to the two sliding seats (13), and the two sliding seats (13) rotate in opposite directions.

4. The detection device for a special valve for a ship's steering gear according to claim 3, characterized in that, The upper side of the sliding table (2) is provided with a lifting groove (15), which is a "T" shaped groove. A lifting block (16) is slidably installed inside the lifting groove (15). The lifting block (16) is a rectangular block. A second connecting block (19) is fixedly installed on the side of the lifting groove (15). The lifting block (16) and the second connecting block (19) are slidably installed inside the lifting groove (15). The lifting block (16) is fixedly installed on the bottom side of the first connecting block (4).

5. The detection device for a special valve for a ship's steering gear according to claim 4, characterized in that, The mounting block (3) has a limit block (17) fixedly installed on both sides of the second connecting block (19). The limit block (17) has threaded holes (18) equidistantly opened on its side. The second connecting block (19) has a connecting threaded hole (18) adapted to the threaded hole (18) on its side. Locking threaded post (20) is provided inside the connecting threaded hole (18) on the side of the second connecting block (19) and inside the threaded hole (18).

6. The detection device for a special valve for a ship's steering gear according to claim 1, characterized in that, The side of the docking cylinder (6) is provided with marking grooves (21) at equal intervals.

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