Horizontal testing tool for installation of marine steering engine

Abstract

The invention relates to the technical field of ship equipment installation, in particular to a marine steering engine installation horizontal testing tool which comprises a supporting frame and a rotating disc, an electric cylinder is fixedly installed at the top end of the supporting frame, a piston rod of the electric cylinder movably penetrates through the top end of the supporting frame, and a fixing frame is fixedly installed at the bottom end of the piston rod of the electric cylinder. According to the invention, four groups of intelligent sensors capable of measuring the levelness of the steering engine base, i.e., double-shaft tilt angle sensors, are arranged, so that four point positions on the steering engine base can be tested at the same time, the test efficiency is improved, and through the arrangement of the self-unlocking connecting mechanism, the test precision is improved. The stability of the intelligent sensor in the descending process can be guaranteed, when the double-shaft tilt angle sensor makes contact with the surface of the base, limitation on the double-shaft tilt angle sensor is automatically relieved, the double-shaft tilt angle sensor can correspondingly incline according to the levelness of the surface of the base, and normal detection of the double-shaft tilt angle sensor is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship equipment installation, in particular to a ship rudder engine installation level test tool. BACKGROUND

[0002] In the fine operation of ship manufacturing and maintenance, the installation level of the ship rudder engine is a key indicator, which deeply affects the control performance and navigation safety of the ship. Precise installation level of the rudder engine can ensure balanced stress during operation, effectively reduce wear and failure rate, and enable the ship to realize stable and flexible steering operation in complex and changeable marine environment.

[0003] In the past, the installation level test of the ship rudder engine mainly relied on manual method. The operator needs to hold a simple level or a device containing an intelligent sensor that can measure the level, and measure each point of the rudder engine base one by one. This process not only consumes a lot of time and labor, but also is greatly affected by manual operation factors. The operation habits, experience level and working state of different operators at that time will all cause certain errors in the measurement results, making it difficult to ensure the accuracy and consistency of each point measurement. Especially for the rudder engine base of large ships, the area is wide and the points are complex, so the manual measurement method is even more inadequate and the efficiency is very low. Therefore, we propose a ship rudder engine installation level test tool SUMMARY

[0004] The purpose of the present application is to provide a ship rudder engine installation level test tool to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a ship rudder engine installation level test tool, comprising a support frame and a turntable, the top end of the support frame is fixedly installed with an electric cylinder, the piston rod of the electric cylinder is movably penetrated through the top end of the support frame, and the bottom end of the piston rod of the electric cylinder is fixedly installed with a fixed frame, the inner wall of the fixed frame is fixedly installed with a motor, the turntable is drivingly connected with the motor, four extension slots are uniformly formed in the outer wall of the turntable, four extension plates are inserted into the four extension slots, and a double-axis inclination sensor is arranged below each of the four extension plates, a self-unlocking connecting mechanism is arranged between the double-axis inclination sensor and the extension plate, a magnetic attraction stabilizing mechanism is arranged inside the extension slot, and a blowing and cleaning mechanism is arranged at the bottom of the turntable.

[0006] Preferably, the output end of the motor is fixedly installed with a rotating shaft, the rotating shaft penetrates through the bottom end of the fixed frame, and the rotating shaft is rotatably connected with the fixed frame through a bearing, and the turntable is fixedly installed at the bottom end of the rotating shaft. By arranging the rotating shaft, the motor can drive the turntable to rotate through the rotating shaft.

[0007] Preferably, the self-unlocking connecting mechanism comprises a connecting rope and a stop ring, the connecting rope is fixedly connected between the bottom end of the telescopic plate and the top end of the two-axis tilt sensor, the bottom end of the telescopic plate is fixedly installed with a connecting sleeve two, the bottom end of the connecting sleeve two is provided with a barrel groove, the connecting sleeve one is inserted into the barrel groove, the connecting sleeve two and the two-axis tilt sensor are provided with a connecting limiting assembly, the connecting sleeve one and the connecting sleeve two are both sleeved outside the connecting rope, the top end of the connecting sleeve one and the top end of the inner wall of the barrel groove are fixedly connected with the spring one, the stop ring is arranged below the two-axis tilt sensor, and the top end of the stop ring and the outer wall of the connecting sleeve one are fixedly installed with an L-shaped connecting rod.

[0008] Preferably, the connecting limiting assembly comprises a connecting ring, the top end of the connecting ring is provided with a connecting groove, and the connecting sleeve one is inserted into the connecting groove. By arranging the connecting ring, the connecting sleeve one can be inserted into the connecting groove, so that the two-axis tilt sensor can be limited, and the stability of the two-axis tilt sensor during use is ensured.

[0009] Preferably, the top end of the inner wall of the barrel groove is fixedly installed with a limiting rod, the top end of the connecting sleeve one is provided with a rod groove, and the limiting rod is inserted into the rod groove. The spring one surrounds the outer wall of the limiting rod. By arranging the limiting rod, the spring one can be limited, and the stability of the spring one during compression is ensured.

[0010] Preferably, the outer wall of the stop ring is rotatably sleeved with a rotating ring, the inner wall of the rotating ring is fixedly installed with a limiting ring plate, the outer wall of the stop ring is provided with a limiting ring groove, and the limiting ring plate is rotatably connected with the limiting ring groove. By arranging the limiting ring plate, the rotating ring can be fixedly rotated on the stop ring.

[0011] Preferably, the magnetic attraction stabilizing mechanism comprises a magnetic plate and a magnetic block, the telescopic groove is installed with a plug-in plate, one end of the telescopic plate is provided with a plug-in groove, the plug-in plate is inserted into the plug-in groove, the magnetic block is installed on the outer wall of the plug-in plate close to one end, the magnetic plate is installed on the inner wall of the telescopic groove, the magnetic plate and the magnetic block are magnetically connected, the outer wall of the telescopic plate is fixedly installed with a limiting sliding block, the inner wall of the telescopic groove is provided with a limiting sliding groove, and the limiting sliding block is slidably connected with the limiting sliding groove. The top end of the magnetic plate is installed with a stop pad, and the material of the stop pad is Teflon. By arranging the stop pad, the friction between the magnetic plate and the magnetic block can be reduced, and the abrasion can be reduced.

[0012] Preferably, a fixed rod is arranged above the L-shaped connecting rod, a touch switch is fixedly installed at the bottom end of the fixed rod, a CCD camera is arranged above the display of the two-axis tilt sensor, the CCD camera is fixedly installed at the bottom end of the telescopic plate, a controller is fixedly installed at the top end of the rotating disc, a display control panel is fixedly installed on the front surface of the support frame, the touch switch is signal connected with the controller, the controller is electrically connected with the CCD camera, and the CCD camera is electrically connected with the display control panel.

[0013] Preferably, the blowing mechanism comprises a piston cylinder, a piston pad is slidably connected to the inner wall of the piston cylinder, a connecting disc is fixedly installed at the top end of the piston pad, a top post is fixedly connected between the top end of the connecting disc and the bottom end of the rotating disc, a post hole is formed at the top end of the piston cylinder, the top post movably penetrates through the post hole, a spring two surrounds the outer wall of the top post, the spring two is fixedly installed between the bottom end of the rotating disc and the top end of the piston cylinder, and an air outlet is formed at the bottom end of the piston cylinder.

[0014] Preferably, a plurality of ball grooves are formed at the bottom end of the piston cylinder, and balls are movably embedded in the ball grooves. By arranging the balls, the friction between the piston cylinder and the rudder base can be reduced, and the wear can be reduced.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The present application is provided with four groups of intelligent sensors that can measure the levelness of the rudder base, i.e. double-axis inclination sensors, so that the four points on the rudder base can be tested at the same time, improving the testing efficiency. The self-unlocking connecting mechanism can ensure the stability of the intelligent sensors during the descending process. When the double-axis inclination sensor contacts the surface of the base, the restriction on the double-axis inclination sensor is automatically released, so that the double-axis inclination sensor can produce a corresponding inclination according to the levelness of the surface of the base, ensuring the normal detection of the double-axis inclination sensor. The cooperation between the CCD camera and the contact switch can timely take a photo of the values on the double-axis inclination sensor and store it, which is convenient for subsequent comparison and checking by personnel.

[0017] 2. The blowing mechanism is arranged in the present application, so that the piston pad can extrude the air in the piston cylinder before the double-axis inclination sensor contacts the rudder base, and the extruded air can be sprayed out through the air outlet, which can effectively blow away the dust or foreign matters that may be attached to the surface of the base below the double-axis inclination sensor, avoiding the influence of the dust or foreign matters on the testing accuracy of the double-axis inclination sensor.

[0018] 3. The present application can facilitate personnel to directly adjust the points of the four double-axis inclination sensors on the rudder base, so that the levelness of other different points on the rudder base can be tested, ensuring the accuracy of the test. The cooperation between the rotating ring and the magnetic attraction stabilizing mechanism can automatically avoid the bolts or small protruding obstacles on the base, improving the testing efficiency and ensuring the normal test of the double-axis inclination sensor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present application;

[0021] Figure 3 A part of the application Figure 2 A part of the application

[0022] Figure 4 B part of the application Figure 2 B part of the application

[0023] Figure 5 C part of the application Figure 2 C part of the application

[0024] Figure 6 D part of the application Figure 2 D part of the application

[0025] Figure 7 Top view of the rotary disc of the application

[0026] Figure 8 E part of the application Figure 7 E part of the application

[0027] Figure 9 Bottom view of the piston cylinder of the application

[0028] Figure 10 Two side view of the connecting sleeve of the application

[0029] Figure 11 F part of the application Figure 10 F part of the application

[0030] In the drawings, the components represented by each number are listed as follows:

[0031] 1, support frame; 2, electric cylinder; 3, fixed frame; 4, motor; 5, rotating shaft; 6, rotary disc; 7, telescopic plate; 8, double-shaft inclination sensor; 9, connecting ring; 10, connecting groove; 11, connecting rope; 12, connecting sleeve one; 13, connecting sleeve two; 14, limiting rod; 15, rod groove; 16, cylinder groove; 17, spring one; 18, telescopic groove; 19, insertion groove; 20, insertion plate; 21, magnetic plate; 22, stop pad; 23, magnetic block; 24, limiting sliding block; 25, limiting sliding groove; 26, L-shaped connecting rod; 27, stop ring; 28, rotating ring; 29, limiting ring plate; 30, limiting ring groove; 31, fixed rod; 32, contact switch; 33, CCD camera; 34, controller; 35, piston cylinder; 36, jacking column; 37, column hole; 38, spring two; 39, connecting disc; 40, piston pad; 41, air outlet; 42, ball groove; 43, ball; 44, display control panel. DETAILED DESCRIPTION

[0032] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0033] The present application provides a technical solution: as shown in Figure 1 - Figure 11 The ship rudder engine installation horizontal test tool comprises a support frame 1 and a rotating disc 6, the top end of the support frame 1 is fixedly installed with an electric cylinder 2, the piston rod of the electric cylinder 2 is movably penetrated through the top end of the support frame 1, and the bottom end of the piston rod of the electric cylinder 2 is fixedly installed with a fixed frame 3, the inner wall of the fixed frame 3 is fixedly installed with a motor 4, the rotating disc 6 is in transmission connection with the motor 4, four telescopic grooves 18 are uniformly formed in the outer wall of the rotating disc 6, four telescopic plates 7 are inserted in the four telescopic grooves 18, double-shaft inclination sensors 8 are arranged below the four telescopic plates 7, a self-unlocking connecting mechanism is arranged between the double-shaft inclination sensors 8 and the telescopic plates 7, a magnetic attraction stabilizing mechanism is arranged in the telescopic groove 18, and a blowing and cleaning mechanism is arranged at the bottom of the rotating disc 6.

[0034] Further, the output end of the motor 4 is fixedly installed with a rotating shaft 5, the rotating shaft 5 penetrates through the bottom end of the fixed frame 3, and the rotating shaft 5 is in rotary connection with the fixed frame 3 through a bearing, and the rotating disc 6 is fixedly installed at the bottom end of the rotating shaft 5.

[0035] Among them, through the setting of the rotating shaft 5, the motor 4 can drive the rotating disc 6 to rotate through the rotating shaft 5.

[0036] Further, the self-unlocking connecting mechanism comprises a connecting rope 11 and a resisting ring 27, the connecting rope 11 is fixedly connected between the bottom end of the telescopic plate 7 and the top end of the double-shaft inclination sensor 8, a connecting sleeve two 13 is fixedly installed at the bottom end of the telescopic plate 7, a barrel groove 16 is formed at the bottom end of the connecting sleeve two 13, a connecting sleeve one 12 is inserted in the barrel groove 16, a connecting limiting component is arranged between the connecting sleeve two 13 and the double-shaft inclination sensor 8, the connecting sleeve one 12 and the connecting sleeve two 13 are both sleeved outside the connecting rope 11, a spring one 17 is fixedly connected between the top end of the connecting sleeve one 12 and the top end of the inner wall of the barrel groove 16, the resisting ring 27 is arranged below the double-shaft inclination sensor 8, and an L-shaped connecting rod 26 is fixedly installed between the top end of the resisting ring 27 and the outer wall of the connecting sleeve one 12.

[0037] Further, the connecting limiting component comprises a connecting ring 9, the top end of the connecting ring 9 is provided with a connecting groove 10, and the connecting sleeve one 12 is inserted in the connecting groove 10.

[0038] Among them, through the setting of the connecting ring 9, the connecting sleeve one 12 can be inserted in the connecting groove 10, so that the double-shaft inclination sensor 8 can be limited, and the stability of the double-shaft inclination sensor 8 in use is ensured.

[0039] Further, the inner wall of the barrel groove 16 is fixedly installed with a limiting rod 14, a rod groove 15 is formed in the top end of the connecting sleeve 12, the limiting rod 14 is inserted into the rod groove 15, and a spring 17 is arranged around the outer wall of the limiting rod 14;

[0040] The limiting rod 14 can limit the spring 17, thereby ensuring the stability of the spring 17 when compressed.

[0041] Further, a rotating ring 28 is rotatably arranged on the outer wall of the abutting ring 27, a limiting ring plate 29 is fixedly installed on the inner wall of the rotating ring 28, a limiting ring groove 30 is formed in the outer wall of the abutting ring 27, and the limiting ring plate 29 is rotatably connected with the limiting ring groove 30.

[0042] The limiting ring plate 29 allows the rotating ring 28 to rotate on the abutting ring 27.

[0043] Further, the magnetic stabilizing mechanism comprises a magnetic plate 21 and a magnetic block 23, a plug plate 20 is installed on the inner wall of the telescopic groove 18, a plug groove 19 is formed in one end of the telescopic plate 7, the plug plate 20 is inserted into the plug groove 19, the magnetic block 23 is installed on the outer wall of the plug plate 20 close to one end, the magnetic plate 21 is installed on the inner wall of the telescopic groove 18, the magnetic plate 21 is magnetically connected with the magnetic block 23, a limiting sliding block 24 is fixedly installed on the outer wall of the telescopic plate 7, a limiting sliding groove 25 is formed in the inner wall of the telescopic groove 18, the limiting sliding block 24 is slidably connected with the limiting sliding groove 25, and a stop pad 22 is installed on the top end of the magnetic plate 21, and the material of the stop pad 22 is Teflon.

[0044] The stop pad 22 can reduce the friction between the magnetic plate 21 and the magnetic block 23, thereby reducing the abrasion.

[0045] Further, a fixed rod 31 is arranged above the L-shaped connecting rod 26, a contact switch 32 is fixedly installed on the bottom end of the fixed rod 31, a CCD camera 33 is arranged above the display of the double-shaft inclination sensor 8, the CCD camera 33 is fixedly installed on the bottom end of the telescopic plate 7, a controller 34 is fixedly installed on the top end of the rotating disc 6, a display control panel 44 is fixedly installed on the front of the support frame 1, the contact switch 32 is signal-connected with the controller 34, the controller 34 is electrically connected with the CCD camera 33, and the CCD camera 33 is electrically connected with the display control panel 44.

[0046] Further, the blowing mechanism comprises a piston cylinder 35, a piston pad 40 is slidably connected with the inner wall of the piston cylinder 35, a connecting disc 39 is fixedly installed on the top end of the piston pad 40, a top column 36 is fixedly connected between the top end of the rotating disc 6 and the top end of the connecting disc 39, a column hole 37 is formed in the top end of the piston cylinder 35, the top column 36 is movably penetrated through the column hole 37, a spring 38 is arranged around the outer wall of the top column 36, the spring 38 is fixedly installed between the bottom end of the rotating disc 6 and the top end of the piston cylinder 35, and a gas outlet 41 is formed in the bottom end of the outer wall of the piston cylinder 35.

[0047] Further, a plurality of ball grooves 42 are formed in the bottom end of the piston cylinder 35, and balls 43 are movably embedded in the ball grooves 42;

[0048] Wherein, by setting the balls 43, the friction between the piston cylinder 35 and the rudder base can be reduced, and the wear can be reduced.

[0049] Working principle: in use, first prepare four test rudder base level intelligent sensor, set the four intelligent sensor respectively below the four telescopic plate 7, and the intelligent sensor is double axis inclination sensor 8, then carry the test tool above the rudder base, then start the electric cylinder 2, the electric cylinder 2 drives the fixed frame 3 to move down, the fixed frame 3 drives the rotating disc 6 to move down through the motor 4 and the rotating shaft 5, the rotating disc 6 drives the piston cylinder 35 to move down through the spring two 38 first, so that the piston cylinder 35 contacts the base surface first, when the rotating disc 6 continues to move down, the rotating disc 6 drives the piston pad 40 to move down through the limiting column, so that the piston pad 40 extrudes the air in the piston cylinder 35, so that the extruded air is sprayed through the air outlet 41, which can effectively blow away the dust or foreign matter that may be attached to the base surface below the double axis inclination sensor 8, avoiding the influence of dust or foreign matter on the test accuracy of the double axis inclination sensor 8, the rotating disc 6 also drives the four telescopic plates 7 to move down, the telescopic plate 7 drives the double axis inclination sensor 8 to move down through the connecting sleeve two 13, spring one 17 and connecting sleeve one 12, and the connecting sleeve one 12 drives the abutment ring 27 to move down through the L-shaped connecting rod 26, so that the abutment ring 27 contacts the base surface first, when the connecting sleeve one 12 continues to move up, the abutment ring 27 drives the connecting sleeve one 12 to move up through the L-shaped connecting rod 26, so that the connecting sleeve one 12 is separated from the connecting groove 10, so that the connecting sleeve one 12 no longer limits the double axis inclination sensor 8, at this time the double axis inclination sensor 8 just contacts the base surface, and the double axis inclination sensor 8 is connected with the telescopic plate 7 through the connecting rope 11 at this time, the double axis inclination sensor 8 detects the level of the base point in X and Y directions, when the measured value on the double axis inclination sensor 8 is stable, the L-shaped connecting rod 26 just contacts the contact switch 32, so that the controller 34 controls the CCD camera 33 to take a picture of the measured value on the double axis inclination sensor 8 and store it, then personnel can view the value through the display control panel 44, through the above structure, four groups of intelligent sensors, i.e. double axis inclination sensors 8, which can measure the level of the rudder base, can be set, so that four points on the rudder base can be tested at the same time, improving the test efficiency, and through the self-unlocking connecting mechanism, the stability of the intelligent sensor during the descending process can be ensured, when the double axis inclination sensor 8 contacts the base surface, the limitation on the double axis inclination sensor 8 is automatically released, so that the double axis inclination sensor 8 can produce corresponding inclination according to the level of the base surface, ensuring the normal detection of the double axis inclination sensor 8, and through the cooperation between the CCD camera 33 and the contact switch 32, the value on the double axis inclination sensor 8 can be taken and stored in time, which is convenient for personnel to compare and view subsequently.When the levelness of other points of the base needs to be tested, the motor 4 can be directly started, so that the motor 4 drives the rotating disc 6 to rotate through the rotating shaft 5, and the rotating disc 6 drives the telescopic plate 7 to rotate, the telescopic plate 7 drives the abutting ring 27 to directly slide on the base through the connecting sleeve two 13, the connecting sleeve one 12 and the L-shaped connecting rod 26, and the telescopic plate 7 drives the double-shaft inclination sensor 8 to slide on the base through the connecting rope 11, so as to change the position of the double-shaft inclination sensor 8 on the base, when the abutting ring 27 slides on the base and encounters a bolt or a small protrusion, the rotating ring 28 will first contact the bolt or the small protrusion, and when the rotating disc 6 continues to rotate, the rotating ring 28 will rotate under the action of the bolt or the small protrusion, so that the bolt or the small protrusion will press the rotating ring 28, and the rotating ring 28 drives the abutting ring 27 to slide to the inside or the outside of the rotating disc 6, and the rotating ring 28 drives the telescopic plate 7 to automatically retract or extend outward through the connecting sleeve two 13, the connecting sleeve one 12 and the L-shaped connecting rod 26, so that the double-shaft inclination sensor 8 automatically avoids obstacles, and ensures the normal test of the double-shaft inclination sensor 8, through the above structure, the positions of the four double-shaft inclination sensors 8 on the rudder base can be directly adjusted by personnel, so that the levelness of other different points on the rudder base can be tested, the accuracy of the test is ensured, and through the cooperation of the rotating ring 28 and the magnetic attraction stabilizing mechanism, the bolt or the small protrusion on the base can be automatically avoided, the test efficiency is improved, and the normal test of the double-shaft inclination sensor 8 is ensured.

[0050] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A tool for testing the level of a marine steering gear installation, comprising a support frame (1) and a turntable (6), characterized in that: An electric cylinder (2) is fixedly installed at the top of the support frame (1). The piston rod of the electric cylinder (2) moves through the top of the support frame (1). A fixed frame (3) is fixedly installed at the bottom of the piston rod of the electric cylinder (2). A motor (4) is fixedly installed on the inner wall of the fixed frame (3). The turntable (6) is connected to the motor (4) in a transmission. Four telescopic grooves (18) are evenly opened on the outer wall of the turntable (6). Telescopic plates (7) are inserted into the four telescopic grooves (18). A dual-axis tilt sensor (8) is set below each of the four telescopic plates (7). A self-unlocking connection mechanism is set between the dual-axis tilt sensor (8) and the telescopic plate (7). A magnetic attraction stabilization mechanism is set inside the telescopic groove (18). A cleaning mechanism is set at the bottom of the turntable (6).

2. The marine steering gear installation level testing tool according to claim 1, characterized in that: The output end of the motor (4) is fixedly mounted with a rotating shaft (5), which passes through the bottom end of the fixed frame (3) and is rotatably connected to the fixed frame (3) through a bearing. The turntable (6) is fixedly mounted at the bottom end of the rotating shaft (5).

3. The marine steering gear installation level testing tool according to claim 1, characterized in that: The self-unlocking connection mechanism includes a connecting rope (11) and a stop ring (27). The connecting rope (11) is fixedly connected between the bottom end of the telescopic plate (7) and the top end of the dual-axis tilt sensor (8). A second connecting sleeve (13) is fixedly installed at the bottom end of the telescopic plate (7). A groove (16) is opened at the bottom end of the second connecting sleeve (13). A first connecting sleeve (12) is inserted into the groove (16). A connection limiting component is provided between the second connecting sleeve (13) and the dual-axis tilt sensor (8). The first connecting sleeve (12) and the second connecting sleeve (13) are both sleeved outside the connecting rope (11). A first spring (17) is fixedly connected between the top end of the first connecting sleeve (12) and the top end of the inner wall of the groove (16). The stop ring (27) is located below the dual-axis tilt sensor (8). An L-shaped connecting rod (26) is fixedly installed between the top end of the stop ring (27) and the outer wall of the first connecting sleeve (12).

4. The marine steering gear installation level testing tool according to claim 3, characterized in that: The connection limiting component includes a connecting ring (9), the top of which is provided with a connecting groove (10), and the connecting sleeve (12) is inserted into the connecting groove (10).

5. The marine steering gear installation level testing tool according to claim 3, characterized in that: A limiting rod (14) is fixedly installed at the top of the inner wall of the cylindrical groove (16). A rod groove (15) is opened at the top of the connecting sleeve (12). The limiting rod (14) is inserted into the rod groove (15). The spring (17) surrounds the outer wall of the limiting rod (14).

6. The marine steering gear installation level testing tool according to claim 3, characterized in that: The outer wall of the abutment ring (27) is rotatably fitted with a rotating ring (28), and the inner wall of the rotating ring (28) is fixedly installed with a limiting ring plate (29). The outer wall of the abutment ring (27) is provided with a limiting ring groove (30), and the limiting ring plate (29) is rotatably connected to the limiting ring groove (30).

7. The marine steering gear installation level testing tool according to claim 1, characterized in that: The magnetic stabilizing mechanism includes a magnetic plate (21) and a magnetic block (23). An insert plate (20) is installed on the inner wall of the telescopic groove (18). A slot (19) is opened at one end of the telescopic plate (7). The insert plate (20) is inserted into the slot (19). The magnetic block (23) is installed on the outer wall of the insert plate (20) near one end. The magnetic plate (21) is installed on the inner wall of the telescopic groove (18). The magnetic plate (21) and the magnetic block (23) are magnetically connected. A limit slider (24) is fixedly installed on the outer wall of the telescopic plate (7). A limit groove (25) is opened on the inner wall of the telescopic groove (18). The limit slider (24) is slidably connected to the limit groove (25). A pad (22) is installed on the top of the magnetic plate (21). The pad (22) is made of Teflon.

8. The marine steering gear installation level testing tool according to claim 1, characterized in that: A fixed rod (31) is provided directly above the L-shaped connecting rod (26). A contact switch (32) is fixedly installed at the bottom of the fixed rod (31). A CCD camera (33) is provided directly above the display of the dual-axis tilt sensor (8). The CCD camera (33) is fixedly installed at the bottom of the telescopic plate (7). A controller (34) is fixedly installed at the top of the turntable (6). A display control panel (44) is fixedly installed on the front of the support frame (1). The contact switch (32) is connected to the controller (34) by signal. The controller (34) is electrically connected to the CCD camera (33). The CCD camera (33) is electrically connected to the display control panel (44).

9. A marine steering gear installation level testing tool according to claim 1, characterized in that: The blowing mechanism includes a piston cylinder (35), a piston pad (40) is slidably connected to the inner wall of the piston cylinder (35), a connecting plate (39) is fixedly installed at the top of the piston pad (40), a top column (36) is fixedly connected between the top of the connecting plate (39) and the bottom of the turntable (6), a column hole (37) is opened at the top of the piston cylinder (35), the top column (36) moves through the column hole (37), a spring (38) surrounds the outer wall of the top column (36), the spring (38) is fixedly installed between the bottom of the turntable (6) and the top of the piston cylinder (35), and an air outlet (41) is opened near the bottom of the outer wall of the piston cylinder (35).

10. A marine steering gear installation level testing tool according to claim 9, characterized in that: The piston cylinder (35) has multiple ball grooves (42) at its bottom end, and ball bearings (43) are movably embedded in the ball grooves (42).

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