CN212047823U - A rocking test device for marine equipment - Google Patents

Abstract

The utility model relates to a swing test device for marine equipment. The test device includes a base plate, a base is rotatably assembled on the base plate, and a driving mechanism is arranged on the base. The test device includes a test bench, the four corners of the test bench are respectively connected with the base through a servo telescopic cylinder, and the upper end of the servo telescopic cylinder is connected with the test table ball hinge. The lower end of the servo telescopic cylinder is connected with the base through a universal joint, and the test device also includes an auxiliary support, the lower end of the auxiliary support is connected with the base, and the upper end is hinged with the test bench. When the utility model is in use, the driving mechanism drives the base to rotate, and the base drives the test stand to achieve bowing; the combined action of the servo telescopic cylinder and the auxiliary support channel drives the test stand to implement rolling and pitching. The utility model can realize rolling, pitching and bowing, and can simulate the use scene of marine equipment more realistically. The yaw, pitch and roll can be combined at the same time, or can be a single independent movement, which can realistically simulate the actual use scene and working conditions of marine equipment.

Description

A rocking test device for marine equipment

technical field

The utility model relates to the technical field of ships, in particular to a swing test device for marine equipment.

Background technique

When a ship is sailing at sea, under the action of external force or internal force, the buoyancy and gravity are not collinear when floating, which will cause the ship to roll, pitch and yaw, and the draught of the two sides will be different, causing the ship to trim. or heel. The rocking characteristics will make marine rotating mechanical power equipment show different dynamic characteristics, affect its stability and reliability, and even induce failures.

In order to make the marine rotating machinery power equipment work normally under the conditions of pitch, roll and yaw, it is necessary to test and verify the test equipment to provide a basis for the design and manufacture of marine machinery and equipment.

The Chinese utility model patent application with the application publication number CN101221094A discloses a rocking and tilting test device for marine equipment and a control method thereof. The test device includes a chassis, a pitching platform and a rolling platform arranged in sequence from top to bottom. A pitching rotary shaft is movably connected, the two end points of the pitching rotary shaft are located on the left and right sides of the pitching platform and are respectively movably connected with the upper end of the longitudinally arranged pitching support whose lower end is fixed on the chassis, and the rolling platform is movably connected There is a rolling rotary shaft, the two end points of the rolling rotary shaft are located on the front and rear sides of the rolling platform and are respectively movably connected with the lower end, and are powered and controlled by a hydraulic station. However, in order to realize the rolling and pitching, the test device is equipped with a rolling platform, a rolling hydraulic cylinder, a pitching platform and a pitching hydraulic cylinder, and the structure is complicated; and the two platforms increase the difficulty of operation.

Utility model content

In order to solve the above technical problems, the utility model provides a swing test device for marine equipment to solve the technical problems of complex structure and difficult operation of the existing marine equipment swing test device.

The technical scheme of the marine equipment swing test device of the present utility model is:

A rocking test device for marine equipment includes a base plate on which a base with a rotation axis extending in an up-down direction is rotatably assembled, the base is provided with a driving mechanism for driving the base to rotate, and the test device further includes a base located on the upper side of the base. The four corners of the test bench are connected to the base through servo telescopic cylinders, the upper end of the servo telescopic cylinder is connected to the test bench ball hinge, and the lower end of the servo telescopic cylinder is connected to the base through a universal joint, so The test device further includes an auxiliary support for restraining the test bench, the lower end of the auxiliary support is fixedly connected with the base, and the upper end is hinged with the test bench.

As a further improvement to the above technical solution, the universal joint is a first Hook hinge, and the first Hook hinge includes a first lower hinge seat, a first upper hinge body and a first connecting rod. The lower hinge seat is fixedly connected to the base, the first upper hinge body is fixedly connected to the servo telescopic cylinder, the upper end of the first connecting rod is hinged with the first upper hinge body, and the lower end is hinged with the first lower hinge seat. A connecting rod is perpendicular to the rotation axis of the first lower hinge seat and the first connecting rod is perpendicular to the rotation axis of the first upper hinge body.

As a further improvement to the above technical solution, a ball head seat is fixedly connected to the lower side of the test bench, and a ball head matching the ball head seat is arranged on the upper end of the servo telescopic cylinder.

As a further improvement to the above technical solution, the servo telescopic cylinder is a servo hydraulic cylinder.

As a further improvement to the above technical solution, the servo telescopic cylinder is provided with a displacement sensor for measuring the telescopic length of the servo telescopic cylinder.

As a further improvement to the above technical solution, the auxiliary support includes a telescopic rod and a support frame, the support frame is fixedly connected to the base, and the telescopic rod is fixedly installed on the support frame.

As a further improvement to the above technical solution, the telescopic end of the telescopic rod is hinged with the test bench through a second Hooker hinge, and the second Hooker hinge includes a second lower hinge seat, a second upper hinge body, and a second Hooker hinge. Two connecting rods, the second lower hinge base is fixedly connected with the base, the second upper hinge body is fixedly connected with the servo telescopic cylinder, the upper end of the second connecting rod is hinged with the second upper hinge body, and the lower end is connected with the second upper hinge body. The lower hinge base is hinged, the second connecting rod is perpendicular to the rotation axis of the second lower hinge base and the second connecting rod is perpendicular to the rotation axis of the second upper hinge body.

As a further improvement to the above technical solution, the drive mechanism includes a rotating shaft, a motor, and a worm gear reducer that is drive-connected to the motor. One end of the rotating shaft is connected to the output shaft of the worm gear reducer to prevent rotation, and the other end is fixed to the bottom plate. connect.

As a further improvement to the above technical solution, the rotation-stop sleeve on the rotating shaft is provided with a connecting sleeve that is fixedly connected to the base, and the connecting sleeve is sleeved with a plane bearing and a connecting ring in sequence from top to bottom, and the connecting ring is fixed to the base. The upper end surface of the plane bearing is fixedly connected with the connecting sleeve, and the lower end surface is fixedly connected with the connecting ring.

The utility model provides a swing test device for marine equipment, and compared with the prior art, its beneficial effects are:

When the marine equipment swing test device of the utility model is in use, the drive mechanism drives the base to rotate, the base drives the test bench to achieve bowing; the servo telescopic cylinder and the auxiliary support pass combine to drive the test bench to roll and pitch. The marine equipment swing test device of the utility model can realize rolling, pitching and bowing, and can simulate the use scene of the marine equipment more realistically. At the same time, using the marine equipment swing test device of the present utility model, the bow, pitch and roll can be combined at the same time, or can be a single independent movement, which can more realistically simulate the actual use scene and working conditions of the marine equipment. Through this test device, the working characteristics of marine equipment under the conditions of roll, pitch and yaw can be obtained, which can provide a basis for the design and manufacture of marine equipment.

Description of drawings

Fig. 1 is the structural representation one of the marine equipment swing test device of the present utility model;

Fig. 2 is the structural representation two of the marine equipment swing test device of the present utility model;

Fig. 3 is the structural representation of the test stand in the marine equipment swing test device of the present invention;

Fig. 4 is the structural representation of the servo hydraulic cylinder in the marine equipment swing test device of the present invention;

Fig. 5 is the structural representation of the Hooke hinge in the marine equipment swing test device of the present utility model;

Fig. 6 is the assembly schematic diagram of the base and the bottom plate in the marine equipment rocking test device of the present invention;

Figure 7 is a cross-sectional view of the base and bottom plate in Figure 6;

Fig. 8 is the structural representation of the bottom plate in the marine equipment swing test device of the present invention;

Fig. 9 is the structural representation of the base in the marine equipment rocking test device of the present invention;

10 is a schematic structural diagram of the drive mechanism in the marine equipment swing test device of the present invention;

Figure 11 is a schematic structural diagram of the motor and the reducer in Figure 10;

Fig. 12 is the structural representation of the rotating shaft in Fig. 10;

Fig. 13 is the assembly schematic diagram of the connecting sleeve, the plane bearing and the connecting ring in Fig. 10;

Fig. 14 is the structural representation of the connecting sleeve in Fig. 10;

Fig. 15 is the structural representation of the connecting ring in Fig. 10;

16 is a schematic structural diagram of an auxiliary support in the marine equipment rocking test device of the present invention;

In the picture: 1. Bottom plate; 2. Base; 3. Air spring; 4. Benchmark; 5. Motor; 6. Worm gear reducer; 61. Jack; Section; 82, large diameter section; 83, connecting flange; 84, connecting key; 9, fixing plate; 10, connecting sleeve; 101, horizontal part; 102, vertical part; 11, plane thrust ball bearing; 12, connecting ring ; 121, convex edge; 13, mounting plate; 14, step hole; 15, fixing block; 16, test bench; 161, fixing hole; 17, servo hydraulic cylinder; 18, first hook hinge; 181, first lower hinge seat; 182, the first connecting rod; 183, the first upper hinge body; 19, the spacer; 20, the support plate; 21, the ball socket; 22, the fixing hole; 23, the escape groove; Support frame; 26, telescopic rod; 27, second lower hinge seat; 28, second connecting rod; 29, second upper hinge body.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

A specific embodiment of the marine equipment swing test device of the present invention, as shown in FIG. 1 and FIG. 2 , includes a base plate 1 , a base 2 , a driving mechanism and a test stand 16 . The base 2 is rotatably assembled on the base plate 1 , and the rotation axis of the base 2 extends in the up-down direction, and the driving mechanism is used to drive the base 2 to rotate relative to the base plate 1 . Two fixed blocks 15 arranged in parallel and spaced apart are fixedly connected to the base 2 . Two ends of the fixed blocks 15 are respectively fixedly connected with upwardly extending servo telescopic cylinders. Preferably, the servo telescopic cylinders are servo hydraulic cylinders 17 . The upper end of the servo hydraulic cylinder 17 is connected to the test stand 16 .

Specifically, the lower end of the servo hydraulic cylinder 17 is fixedly connected to the base through the first Hooke hinge 18 , so that the servo hydraulic cylinder 17 can swing within a certain angle when expanding and contracting. 4 and 5, the first Hooke hinge 18 includes a first lower hinge seat 181, a first upper hinge body 183 and a first connecting rod 182, and the first lower hinge seat 181 is fixedly connected to the fixing block. The first lower hinge seat 181 includes two parallel connection ears, and the connection ears are provided with hinge holes. The first connecting rod 182 is hinged between the two connecting ears through a hinge rod. There are two first upper hinge bodies 183 , the two first upper hinge bodies 183 are hinged on both sides of the first connecting rod 182 , the rotation axis of the first upper hinge body 183 and the first connecting rod 182 and the first connecting rod 182 It is perpendicular to the rotation axis of the first lower hinge seat 181 . The first upper hinge body 183 is fixedly connected to the lower end of the servo hydraulic cylinder 17 through bolts.

Referring to FIG. 3 , the upper end of the servo hydraulic cylinder 17 is spherically connected to the lower side of the test bench 16 . Specifically, the upper end of the servo hydraulic cylinder 17 has a stud, and the stud is threadedly connected with a ball head. The ball head seat 21 matched with the ball head has two ears, the ears are provided with fixing holes 22, and the lower side of the test table 16 has fixing holes 161 corresponding to the fixing holes.

A displacement sensor is installed on the servo hydraulic cylinder 17 . When the servo hydraulic cylinder 17 expands and contracts, the displacement sensor can detect the telescopic length of the servo hydraulic cylinder 17 , so as to accurately control the telescopic length of the servo hydraulic cylinder 17 .

As shown in FIG. 16 , an auxiliary support for constraining the degree of freedom of the test bench 16 is also fixedly connected to the base. The auxiliary support includes a telescopic rod 26 and a support frame 25 supported at the bottom of the telescopic rod 26. The bottom of the support frame 25 is fixedly connected to the base through screws, and the telescopic rod 26 and the support frame 25 are connected and fixed by a flange. The top is connected and fixed with the test bench 16 through the second Hooke hinge. The second Hook hinge includes a second lower hinge base 27, a second upper hinge body 29 and a second connecting rod 28. The second lower hinge base 27 is fixedly connected to the telescopic rod 26, and the second upper hinge body 29 is fixedly connected to the swing platform. , the upper end of the second connecting rod 28 is hinged with the second upper hinge body 29, the lower end is hinged with the second lower hinge seat 27, the rotation axis of the second connecting rod 28 and the second lower hinge seat 27 and the second connecting rod 28 and the first hinge The rotation axes of the two upper hinge bodies 29 are perpendicular to each other. The second Hooke hinge enables the test rig to swing around the top of the auxiliary support in the left-right and front-rear directions. In this embodiment, the telescopic rod 26 is a jack.

As shown in FIGS. 6 , 7 and 8 , the bottom plate 1 includes a frame and a panel fixedly connected to the upper side of the frame. The center of the panel has a through hole penetrating the upper and lower sides of the panel, and a mounting plate is fixedly connected to the through hole. The mounting plate is provided with stepped holes 14 penetrating the upper and lower sides of the mounting plate, a plurality of fixing bolts are installed on the steps of the stepped holes 14, and the panel is fixedly connected with upwardly extending poles 4 on both sides of the stepped holes 14 respectively.

Referring to FIG. 9 , the base 2 includes a frame and an outer plate wrapped around the outside of the frame. The center of the upper outer plate has a through hole 24 penetrating the upper and lower sides of the base 2 , and the through hole 24 corresponds to the step hole 14 on the bottom plate 1. . The outer plate has escape grooves on both sides of the through hole 24 for the poles 4 on the bottom plate 1 to pass upwards.

In this embodiment, the base 2 and the bottom plate 1 are rotatably assembled through bearings. Specifically, a fixing plate 9 is installed in the hole of the bottom plate 1 , a hole is formed in the center of the fixing plate 9 , and a connecting sleeve 10 is fixedly connected to the lower side of the fixing plate 9 by bolts. As shown in FIG. 14 , the connecting sleeve 10 has a T-shaped structure. The T-shaped connecting sleeve 10 includes a horizontal portion 101 and a vertical portion 102. The horizontal portion 101 has a plurality of circumferentially arranged fixing holes penetrating the horizontal portion 101 up and down. Bolts for connecting with the fixing plate 9 are pierced in the fixing holes. The central hole of the connecting sleeve 10 and the perforation of the fixing plate 9 pass through with equal diameters. The vertical portion 102 of the connecting sleeve 10 is sleeved with a plane bearing, preferably, the plane bearing is a plane thrust ball bearing 11, and in other embodiments, the plane thrust ball bearing can also be replaced with a plane roller bearing. The upper end surface of the plane thrust ball bearing 11 and the horizontal portion 101 of the connecting sleeve 10 are fixedly connected by bolts.

The step hole 14 of the bottom plate 1 is fixedly connected with a connecting ring 12 by bolts. As shown in Figures 13 and 15, the connecting ring 12 is embedded in the large diameter section of the step hole 14, and the center of the connecting ring 12 has a connection with the step hole 14. The small diameter section is a central hole through which the diameter is equal. The vertical portion 102 of the connecting sleeve 10 is embedded in the central hole of the connecting ring 12 and the small diameter section of the stepped hole 14 . The outer peripheral wall of the connecting ring 12 has a convex edge 13 extending upward, and there is an annular space between the convex edge 13 and the connecting sleeve 10 . The lower end of the plane thrust ball bearing 11 is embedded in the annular space, and the lower end surface of the plane thrust ball bearing 11 and the connecting ring 12 are fixedly connected by bolts. The base 2 is relatively fixed on the upper end surface of the plane thrust ball bearing 11 , and the bottom plate 1 is opposite to the lower end surface of the plane thrust ball bearing 11 , so that the base 2 can be rotated and assembled on the bottom plate 1 .

In this embodiment, the driving mechanism includes a motor 5 , a reducer and a rotating shaft 8 . As shown in FIG. 10 , FIG. 11 , and FIG. 12 , the motor 5 is drive-connected to the reducer, and the reducer is a worm gear reducer 6 . The worm gear reducer 6 is fixedly connected to the base 2 through a reducer fixing seat 7, and the reducer fixing seat 7 includes a bottom plate 1, a vertical plate and a reinforcing plate connected between the bottom plate 1 and the vertical plate. The bottom plate 1 has a connection hole fixedly connected with the base 2 , and the vertical plate has a fixed hole fixedly connected with the worm gear reducer 6 . The worm gear reducer 6 is connected with the rotating shaft 8 by a key. The output end of the worm gear reducer 6 has an insertion hole 61 with a keyway in the insertion hole 61. The rotating shaft 8 has a connecting key 84 matching the keyway. In this embodiment, the rotating shaft 8 is a reducing shaft, and the rotating shaft 8 includes a large diameter section, a small diameter section, and a connecting flange 83 fixedly connected to the end of the large diameter section. The small diameter section of the rotating shaft 8 is in anti-rotation cooperation with the worm gear reducer 6 , and the keyway is axially arranged on the small diameter section of the rotating shaft 8 . The large diameter section is inserted into the connecting sleeve 10 . The lower end of the bottom plate 1 is fixedly connected with a fixing plate 15 , the middle of the fixing plate 15 has a positioning hole that matches with the positioning protrusion on the lower side of the rotating shaft 8 , and the fixing plate 15 has a fixing hole corresponding to the connecting hole of the connecting flange 83 penetrating through. , the connecting flange 83 and the fixing plate 15 are fixed by bolts, so as to realize the fixed connection between the rotating shaft 8 and the bottom plate 1 .

In this embodiment, the avoidance groove is an arcuate avoidance groove 23, so that when the driving mechanism drives the base 2 to rotate, the pole 4 can move in the base 2. The openings of the two arc-shaped avoidance grooves 23 on the base 2 are arranged oppositely, and the groove edge of the arc-shaped avoidance groove 23 is fixedly connected with a ruler. When the base 2 and the bottom plate 1 do not rotate relative to each other, the ruler 4 corresponds to zero on the ruler. .

In this embodiment, the base 2 and the bottom plate 1 are both rectangular structures, and the four corners of the rectangular bottom plate 1 are respectively installed with air springs 3 . A support plate 20 is provided on the lower side of the bottom plate 1 , and a spacer 19 is provided at the position of the support plate corresponding to the air spring 3 .

The working principle of the marine equipment swing test device of the utility model is as follows: the driving mechanism drives the base to rotate, and the base drives the test bench to achieve bowing; the combined action of the servo telescopic cylinder and the auxiliary support channel drives the test bench to roll and pitch. Specifically, the motor 5 drives the worm gear reducer 6 to rotate. Since the rotating shaft 8 is fixedly connected to the stationary bottom plate, the worm gear reducer 6 that is connected to the rotating shaft 8 in a non-rotating manner rotates around the rotating shaft 8 and is fixed to the worm gear reducer 6 The connected base rotates around the axis of rotation 8 . During the rotation of the base 2, the scale on the base 2 and the pole 4 move relative to each other, so that the rotation angle of the base 2 can be obtained. The servo telescopic cylinders 17 arranged at the four corners of the test bench 16 and the auxiliary supports located on the lower side of the middle of the test bench work together to realize the roll and pitch of the test bench 16.

The utility model provides a marine equipment rocking test device, which has the following advantages compared with the prior art: the marine equipment rocking test device of the utility model can realize rolling, pitching and bowing, and can simulate the marine equipment more realistically. device usage scenarios. At the same time, using the marine equipment swing test device of the present utility model, the bow, pitch and roll can be combined at the same time, or can be a single independent movement, which can more realistically simulate the actual use scene and working conditions of the marine equipment. Through this test device, the working characteristics of marine equipment under the conditions of roll, pitch and yaw can be obtained, which can provide a basis for the design and manufacture of marine equipment.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and replacements can be made without departing from the technical principles of the present invention. These improvements And replacement should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a marine equipment sways test device which characterized in that: the testing device comprises a base plate, it is equipped with the base that the rotation axis extends along upper and lower direction to rotate on the bottom plate, be equipped with on the base and be used for driving base pivoted actuating mechanism, the testing device is still including the test bench that is located the base upside, the four corners of test bench is connected with the base through servo telescoping cylinder respectively, servo telescoping cylinder's upper end and test bench ball pivot are connected, servo telescoping cylinder's lower extreme pass through universal joint with the base is connected, the testing device is still including the auxiliary stay who is used for retraining the test bench, auxiliary stay lower extreme and base fixed connection, the upper end is articulated with the test bench.

2. The marine equipment sway test apparatus of claim 1, characterized in that: the universal joint is a first hooke joint, the first hooke joint comprises a first lower hinge base, a first upper hinge body and a first connecting rod, the first lower hinge base is fixedly connected with the base, the first upper hinge body is fixedly connected with the servo telescopic cylinder, the upper end of the first connecting rod is hinged with the first upper hinge body, the lower end of the first connecting rod is hinged with the first lower hinge base, and the rotating axis of the first connecting rod and the rotating axis of the first lower hinge base are perpendicular to the rotating axis of the first connecting rod and the first upper hinge body.

3. The marine equipment sway test apparatus of claim 1, characterized in that: the test bench downside fixedly connected with bulb seat, the upper end of servo telescoping cylinder is equipped with bulb of bulb seat assorted.

4. The marine equipment sway test apparatus of claim 1, characterized in that: the servo telescopic cylinder is a servo hydraulic cylinder.

5. The marine equipment sway test apparatus of claim 1, characterized in that: and the servo telescopic cylinder is provided with a displacement sensor for measuring the telescopic length of the servo telescopic cylinder.

6. The marine equipment sway test device of any one of claims 1 to 5, characterized in that: the auxiliary support comprises a telescopic rod and a support frame, the support frame is fixedly connected with the base, and the telescopic rod is fixedly installed on the support frame.

7. The marine equipment sway testing arrangement of claim 6, characterized in that: the flexible end of telescopic link pass through the second hook hinge with the test bench is articulated, the second hook hinge includes hinge seat, the second on hinge body and second connecting rod under the second, hinge seat and base fixed connection under the second, hinge body and servo telescoping cylinder fixed connection on the second, hinge body articulated on the upper end and the second of second connecting rod, the lower extreme is articulated under hinge seat and the second, the second connecting rod with under the second the rotation axis of hinge seat with the second connecting rod with the rotation axis of hinge body is mutually perpendicular on hinge body and the second.

8. The marine equipment sway test device of any one of claims 1 to 5, characterized in that: the driving mechanism comprises a rotating shaft, a motor and a worm and gear speed reducer in transmission connection with the motor, one end of the rotating shaft is in rotation stopping connection with an output shaft of the worm and gear speed reducer, and the other end of the rotating shaft is fixedly connected with the bottom plate.

9. The marine equipment sway testing arrangement of claim 8, characterized in that: the rotary shaft upper end rotation sleeve is provided with a connecting sleeve fixedly connected with the base, the connecting sleeve is sequentially sleeved with a plane bearing and a connecting ring from top to bottom, the connecting ring is fixedly connected with the base, the upper end face of the plane bearing is fixedly connected with the connecting sleeve, and the lower end face of the plane bearing is fixedly connected with the connecting ring.

Images