A tilt adjustment device and a swing test bench

Abstract

The present invention relates to a tilt adjustment device and a swing test bench. The tilt adjustment device includes a moving platform and a platform adjustment mechanism, the platform adjustment mechanism includes a plurality of first telescopic rods, the moving platform includes a platform frame and a swing platform rotatably mounted in the platform frame, the first rotating shaft portion and the second rotating shaft portion are respectively provided on opposite sides of the swing platform, the first rotating shaft portion and the second rotating shaft portion are coaxially arranged, and a motor drive mechanism and a brake mechanism are also provided on the platform frame, and the motor drive mechanism is transmission-connected with the first rotating shaft portion. By adopting the tilt adjustment device of the present invention, the swing platform can simulate the situation when a vehicle tilts again in a tilted state, and can also simulate the tilting, swaying and longitudinal swaying of the swing platform when the swing platform tilts a certain angle, thereby meeting the test requirements of the swing form of the vehicle under complex conditions, enriching the test types and methods, and making the test process more comprehensive.

Description

Technical Field

[0001] The invention relates to the technical field of tilt and swing testing, and in particular to a tilt adjustment device and a swing test bench. Background Art

[0002] Vehicles and ships must undergo strict quality tests before they are manufactured and shipped out of the factory. These tests include instrument calibration, sealing tests, tilt and swing tests, etc. The tilt and swing test is a test of the fatigue resistance and structural strength of the vehicle in a tilted state.

[0003] At present, the tilt and swing test is mainly carried out with the help of a special swing test bench. The swing test bench includes a moving platform and multiple hydraulic cylinders arranged at the bottom of the moving platform. The top of the moving platform is used to place equipment of vehicles, ships and other means of transportation. By adjusting the extension and contraction amount of each hydraulic cylinder to simulate the working environment of ships and vehicles, the tilt and swing test of the ship's main engine, auxiliary engine and vehicle power equipment can be realized.

[0004] However, the existing rocking test bench has a relatively simple tilt adjustment method, which can only adjust the tilt angle of vehicles and ships. In actual practice, due to the complexity of the environment, vehicles and ships in a tilted state are easily subjected to tilting forces again, thereby generating secondary tilting and rocking motions. The rocking test bench in the prior art cannot simulate such working conditions, which limits the test scope of the rocking test bench and makes it impossible to comprehensively test vehicle equipment, ship equipment, etc. Summary of the invention

[0005] The purpose of the present invention is to provide a tilt adjustment device to solve the technical problem that the rocking test bench in the prior art has a single test mode and cannot test complex working conditions such as secondary tilt and rocking motion. The present invention also provides a rocking test bench using the tilt adjustment device.

[0006] In order to achieve the above object, the present invention provides a tilt adjustment device, which adopts the following technical solution:

[0007] A tilt adjustment device includes a moving platform and a platform adjustment mechanism arranged at the bottom of the moving platform, the platform adjustment mechanism includes a plurality of first telescopic rods, and the moving platform realizes tilt and swing adjustment by adjusting the telescopic amount of each first telescopic rod; the moving platform includes a platform frame and a swinging platform rotatably installed in the platform frame, and the first rotating shaft portion and the second rotating shaft portion for rotationally assembling with the platform frame are respectively arranged on opposite sides of the swinging platform, and the first rotating shaft portion and the second rotating shaft portion are coaxially arranged, and a motor drive mechanism and a braking mechanism are also arranged on the platform frame, the motor drive mechanism is transmission-connected with the first rotating shaft portion, and the motor drive mechanism is used to drive the swinging platform to rotate around the first rotating shaft portion and the second rotating shaft portion, and the braking mechanism is used to brake the second rotating shaft portion after the swinging platform swings to a set angle, so as to fix the tilt angle of the swinging platform.

[0008] Furthermore, the platform adjustment mechanism also includes an auxiliary support supported at a middle position of the moving platform, and the auxiliary support includes a second telescopic rod and a support frame supported at the bottom of the second telescopic rod.

[0009] Furthermore, a Hooke's hinge mechanism is arranged between the second telescopic rod and the swing platform, and the Hooke's hinge mechanism includes a connecting shaft, a first Hooke's hinge and a second Hooke's hinge, the notches of the first Hooke's hinge and the second Hooke's hinge are arranged vertically, and the first Hooke's hinge and the second Hooke's hinge are respectively hinged at both ends of the connecting shaft.

[0010] Furthermore, the first telescopic rod and the second telescopic rod are both hydraulic cylinders.

[0011] Furthermore, one end of each first telescopic rod facing the moving platform is connected to the platform frame by means of a ball joint.

[0012] Furthermore, the brake mechanism includes a brake disc mounted on the second rotating shaft portion and a brake for clamping the brake disc to limit the rotation of the brake disc.

[0013] Furthermore, the brake disc is provided with an arc-shaped scale, and the platform frame is provided with an indicating needle for indicating the scale of the arc-shaped scale.

[0014] Furthermore, the platform frame is provided with a first bearing group for supporting the middle portion of the first rotating shaft portion and a second bearing group for supporting the middle portion of the second bearing portion.

[0015] Furthermore, portal structures are provided on both the front and rear sides of the platform frame, and connecting seats are provided on both the left and right sides of the platform frame.

[0016] The present invention provides a rocking test bench, which adopts the following technical solution:

[0017] A swing test bench comprises a base and a tilt adjustment device arranged on the base, the tilt adjustment device comprises a moving platform and a platform adjustment mechanism arranged at the bottom of the moving platform, the platform adjustment mechanism comprises a plurality of first telescopic rods, and the moving platform realizes tilt and swing adjustment by adjusting the telescopic amount of each first telescopic rod; the moving platform comprises a platform frame and a swing platform rotatably installed in the platform frame, the first rotating shaft portion and the second rotating shaft portion for rotationally assembling with the platform frame are respectively arranged on opposite sides of the swing platform, the first rotating shaft portion and the second rotating shaft portion are coaxially arranged, and a motor drive mechanism and a braking mechanism are also arranged on the platform frame, the motor drive mechanism is transmission-connected with the first rotating shaft portion, the motor drive mechanism is used to drive the swing platform to rotate around the first rotating shaft portion and the second rotating shaft portion, and the braking mechanism is used to brake the second rotating shaft portion after the swing platform swings to a set angle, so as to fix the tilt angle of the swing platform.

[0018] Furthermore, the platform adjustment mechanism also includes an auxiliary support supported at a middle position of the moving platform, and the auxiliary support includes a second telescopic rod and a support frame supported at the bottom of the second telescopic rod.

[0019] Furthermore, a Hooke's hinge mechanism is arranged between the second telescopic rod and the swing platform, and the Hooke's hinge mechanism includes a connecting shaft, a first Hooke's hinge and a second Hooke's hinge, the notches of the first Hooke's hinge and the second Hooke's hinge are arranged vertically, and the first Hooke's hinge and the second Hooke's hinge are respectively hinged at both ends of the connecting shaft.

[0020] Furthermore, the first telescopic rod and the second telescopic rod are both hydraulic cylinders.

[0021] Furthermore, one end of each first telescopic rod facing the moving platform is connected to the platform frame by means of a ball joint.

[0022] Furthermore, the brake mechanism includes a brake disc mounted on the second rotating shaft portion and a brake for clamping the brake disc to limit the rotation of the brake disc.

[0023] Furthermore, the brake disc is provided with an arc-shaped scale, and the platform frame is provided with an indicating needle for indicating the scale of the arc-shaped scale.

[0024] Furthermore, the platform frame is provided with a first bearing group for supporting the middle portion of the first rotating shaft portion and a second bearing group for supporting the middle portion of the second bearing portion.

[0025] Furthermore, portal structures are provided on both the front and rear sides of the platform frame, and connecting seats are provided on both the left and right sides of the platform frame.

[0026] Compared with the prior art, the tilt adjustment device and the swing test platform of the embodiments of the present invention have the following beneficial effects: by adopting the tilt adjustment device of the present invention, the tilt angle of the swing platform can be adjusted by the platform adjustment mechanism, and can also be adjusted by the motor drive mechanism. These two independent adjustment methods enable the swing platform to simulate the situation when the vehicle tilts again in a tilted state, and can also simulate the tilting, swinging and longitudinal swinging of the swing platform when the swing platform tilts a certain angle, thereby meeting the test requirements of the swing form of the vehicle under complex conditions, enriching the test types and methods, and making the test process more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The overall structure of the swing test bench of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The overall structure of the swing test bench of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3 The overall structure of the moving platform of the swing test bench of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 4 The overall structure of the moving platform of the swing test bench of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 5 The overall structure of the moving platform of the swing test bench of the embodiment of the present invention is shown in FIG. Figure 3 ;

[0032] Figure 6 It is a schematic diagram of the assembled moving platform and platform adjustment mechanism of the swing test bench according to an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the overall structure of the auxiliary support of the swing test bench according to an embodiment of the present invention.

[0034] In the figure, 1-base, 2-gantry bracket, 3-first telescopic rod, 4-moving platform, 5-auxiliary support, 501-support frame, 502-second telescopic rod, 503-first Hooke's hinge, 504-connecting shaft, 505-second Hooke's hinge, 6-swing platform, 7-motor drive mechanism, 701-reducer, 702-drive motor, 8-brake mechanism, 801-brake disc, 802-brake, 9-gantry structure, 10-connecting seat, 11-pin shaft, 12-platform frame, 13-end plate structure, 14-second bearing group, 15-first bearing group. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figures 1 to 7 As shown, a swing test bench of a preferred embodiment of the present invention. The swing test bench comprises a base 1 and a tilt adjustment device arranged on the base 1, the tilt adjustment device comprises a moving platform 4 and a platform adjustment mechanism arranged at the bottom of the moving platform 4, the platform adjustment mechanism comprises a plurality of first telescopic rods 3, and the moving platform 4 realizes tilt and swing adjustment by adjusting the telescopic amount of each first telescopic rod 3; the moving platform 4 comprises a platform frame 12 and a swing platform 6 rotatably mounted in the platform frame 12, the first rotating shaft part and the second rotating shaft part for rotating assembly with the platform frame 12 are respectively arranged on opposite sides of the swing platform 6, the first rotating shaft part and the second rotating shaft part are coaxially arranged, the platform frame 12 is also provided with a motor drive mechanism 7 and a brake mechanism 8, the motor drive mechanism 7 is in transmission connection with the first rotating shaft part, the motor drive mechanism 7 is used to drive the swing platform 6 to rotate around the first rotating shaft part and the second rotating shaft part, and the brake mechanism 8 is used to brake the second rotating shaft part after the swing platform 6 swings to a set angle, so as to fix the tilt angle of the swing platform 6.

[0037] Specifically, in this embodiment, the moving platform 4 is installed on the swing test bench, which includes a base 1 and a gantry bracket 2 installed on the base 1. A platform adjustment mechanism is installed on the inner side of the gantry bracket 2. The platform adjustment mechanism includes four first telescopic rods 3. The moving platform 4 of this embodiment is installed on the top of the four first telescopic rods 3. In this embodiment, the top of each first telescopic rod 3 is connected and fixed to the moving platform 4 by a ball joint, and the bottom of the first telescopic rod 3 is connected and fixed to the base 1 by a Hooke's hinge mechanism. The Hooke's hinge mechanism has the same structure as the Hooke's hinge mechanism at the top of the second telescopic rod 502, which will be described in detail later. The overall inclination angle of the moving platform 4 can be adjusted by adjusting the telescopic length of each first telescopic rod 3.

[0038] like Figure 2 As shown, in this embodiment, the moving platform 4 includes a platform frame 12 and a swing platform 6 installed in the platform frame 12. In order to enhance the stability of the structure, the platform adjustment mechanism in this embodiment also includes an auxiliary support 5, which is installed at the bottom of the moving platform 4. Figure 7As shown, the auxiliary support 5 includes a second telescopic rod 502 and a support frame 501 supported at the bottom of the second telescopic rod 502. The bottom of the support frame 501 is fixedly connected to the base 1 by screws, the second telescopic rod 502 and the support frame 501 are connected and fixed by a flange, and the top of the second telescopic rod 502 is connected and fixed to the swing platform 6 by a Hook's hinge mechanism. In this embodiment, the Hook's hinge mechanism includes a connecting shaft 504, a first Hook's hinge 503 and a second Hook's hinge 505. The first Hook's hinge 503 and the second Hook's hinge 505 are both U-shaped grooves. The notches of the first Hook's hinge 503 and the second Hook's hinge 505 are arranged vertically and hinged at both ends of the connecting shaft 504 respectively. In this embodiment, the first Hook's hinge 503 is connected and fixed to the second telescopic rod 502 by a flange, and the second Hook's hinge 505 is connected and fixed to the bottom of the swing platform 6 by a flange. The setting of the Hook's hinge mechanism enables the swing platform 6 to swing in the left and right directions and the front and back directions around the top of the auxiliary support 5. In this embodiment, the first telescopic rod 3 is a hydraulic cylinder, and the second telescopic rod 502 is a jack. It should be noted that the auxiliary support in this embodiment can play a supporting and adjusting role for the moving platform during the installation process. By installing a displacement sensor on the auxiliary support, the displacement sensor can detect the installation height of the moving platform. When the required installation height is reached, the auxiliary support can be fixed and locked by a bolt locking mechanism.

[0039] In this embodiment, the platform frame 12 is a rectangular frame, and the swing platform 6 is a rectangular plate. The opposite sides (i.e., the front and rear sides) of the platform frame 12 are respectively provided with a motor drive mechanism 7 and a brake mechanism 8. In this embodiment, the motor drive mechanism 7 includes a drive motor 702 and a reducer 701. The reducer 701 is specifically a turbine reducer. The motor drive mechanism 7 is installed at the front end of the platform frame 12. The drive motor 702 and the reducer 701 are connected by transmission. A first rotating shaft portion is connected between the output shaft of the reducer 701 and the swing platform 6. The first rotating shaft portion is a transmission shaft. The first rotating shaft portion is used to connect to the swing platform 6 with a flange on the side facing the swing platform 6. In this embodiment, the braking mechanism 8 is installed at the rear end of the platform frame 12. The braking mechanism 8 includes a brake disc 801 and a brake 802. In this embodiment, the second rotating shaft portion is also a transmission shaft. One end of the second rotating shaft portion is connected and fixed to the swing platform 6 through a flange, and the brake disc 801 is integrally arranged at the other end of the second rotating shaft portion. When the swing platform 6 swings to a set angle, the swing angle of the swing platform 6 can be fixed by clamping the brake 802 to fix the brake disc 801.

[0040] It should be noted that, in this embodiment, the front and rear ends of the swing platform 6 are also provided with a first bearing group 15 and a second bearing group 14, respectively. The first bearing group 15 includes a bearing housing and a bearing installed in the bearing housing. The first shaft portion and the second shaft portion are both rotatably assembled in the corresponding bearing group. Specifically, the first bearing group 15 is used to support the middle position of the first shaft portion, and the second bearing group 14 is used to support the middle position of the second shaft portion. In this embodiment, the first shaft portion and the second shaft portion are coaxially arranged, so that the swing platform 6 will rotate around the first shaft portion and the second shaft portion. In other embodiments, the first shaft portion and the second shaft portion can also be arranged on the same transmission shaft. In this embodiment, end plate structures 13 are also fixed at the front and rear ends of the swing platform 6. The end plate structure 13 is a mounting plate arranged at the front and rear ends of the swing platform 6. The two end plate structures 13 are arranged vertically with the swing platform 6. The arrangement of the end plate structure 13 increases the end surface area of ​​the swing platform 6, thereby facilitating the flange connection between the first shaft portion and the swing platform 6, and the second shaft portion and the swing platform 6.

[0041] In the present embodiment, a gantry structure 9 is provided at both the front and rear ends of the platform frame 12. The gantry structure 9 is a door-shaped connecting frame installed at the front and rear ends of the platform frame 12. The gantry structure 9 is mainly used to fix the connection with the rope for pulling the moving platform 4. The rope is mainly set to suspend the moving platform 4 to prevent the moving platform 4 from falling when the first telescopic rod 3 and the second telescopic rod 502 fail.

[0042] In this embodiment, a connection seat 10 is provided on both sides of the platform frame 12. The cross section of the connection seat 10 is an isosceles trapezoid. The connection seat 10 is provided with a fixing hole for inserting a pin shaft 11. When the movable platform 4 is not in use, the movable platform 4 can be stopped at a set position by the pin shafts 11 by inserting the pin shafts 11 into the fixing holes and then fixing the pin shafts 11 to the gantry bracket 2 by screws or bolts.

[0043] In order to facilitate the measurement of the swing angle of the swing platform 6, in this embodiment, an arc scale is arranged on the brake disc 801, and an indicator needle for indicating the scale of the arc scale is arranged on the platform frame 12. When the brake disc 801 rotates along with the second rotating shaft portion, the arc scale will also rotate. The swing angle of the swing platform 6 can be measured by reading the value indicated by the indicator needle.

[0044] In this embodiment, the swing platform 6 includes a flat plate structure and a reinforcing structure fixed to the bottom of the flat plate structure. The flat plate structure is a rectangular flat plate, and the reinforcing structure is a reinforcing rib welded and fixed to the bottom of the rectangular flat plate.

[0045] The working process of the present invention is as follows: during use, the ship, vehicle and other measuring tools are installed on the swing platform 6, and then the telescopic amount of the first telescopic rod 3 and the second telescopic rod 502 are adjusted to achieve the adjustment of the tilt angle of the swing platform 6 and the platform frame 12. After the adjustment is completed, the electric drive mechanism is started to drive the swing platform 6 to rotate. When the swing platform 6 is adjusted again, the brake mechanism 8 is started to clamp and fix the brake disc 801, so that the swing platform 6 can be maintained at the adjusted tilt angle, thereby realizing the secondary tilt adjustment of ships, vehicles and other transportation tools.

[0046] In addition, the swing test bench of the present invention can also simulate the working condition of swinging in a tilted state. During the simulation, the electric drive mechanism is first started to rotate the swing platform to a set angle, and then the braking mechanism is started to keep the swing platform at the set angle. Finally, by adjusting the telescopic amount of each first telescopic rod, a simulation test of the longitudinal swing or lateral swing of the swing platform can be achieved.

[0047] Embodiment of the tilt adjustment device of the present invention: The specific structure of the tilt adjustment device is the same as the specific structure of the tilt adjustment device in the above-mentioned swing test bench, and will not be repeated here.

[0048] In summary, the embodiments of the present invention provide a tilt adjustment device and a swing test bench, the tilt angle of the swing platform 6 of which can be adjusted by a platform adjustment mechanism and can also be adjusted by a motor drive mechanism 7. These two independent adjustment methods enable the swing platform 6 to simulate the situation when the vehicle tilts again in a tilted state, and can also simulate the tilt swing and longitudinal swing of the swing platform when the swing platform tilts at a certain angle, thereby meeting the test requirements of the swing form of the vehicle under complex conditions, enriching the test types and methods, and making the test process more comprehensive.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A tilt adjustment device, characterized in that: The invention comprises a moving platform (4) and a platform adjustment mechanism arranged at the bottom of the moving platform (4), wherein the platform adjustment mechanism comprises a plurality of first telescopic rods (3), and the moving platform (4) is adjusted to tilt and sway by adjusting the telescopic amount of each first telescopic rod (3); the moving platform (4) comprises a platform frame (12) and a swinging platform (6) rotatably mounted in the platform frame (12), and the swinging platform (6) is provided with a first rotating shaft portion and a second rotating shaft portion for rotatably assembling with the platform frame (12) on opposite sides, respectively, and the first rotating shaft portion and the second rotating shaft portion are arranged coaxially, and the platform frame (12) is also provided with a motor. A driving mechanism (7) and a braking mechanism (8), wherein the motor driving mechanism (7) is in driving connection with the first rotating shaft portion, the motor driving mechanism (7) is used to drive the swing platform (6) to rotate around the first rotating shaft portion and the second rotating shaft portion, and the braking mechanism (8) is used to brake the second rotating shaft portion after the swing platform (6) swings to a set angle, so as to fix the tilt angle of the swing platform (6); the platform adjustment mechanism also includes an auxiliary support (5) supported at a middle position of the moving platform (4), the auxiliary support (5) including a second telescopic rod (502) and a support frame (501) supported at the bottom of the second telescopic rod (502); A Hooke's hinge mechanism is provided between the second telescopic rod (502) and the swing platform (6), the Hooke's hinge mechanism comprising a connecting shaft (504), a first Hooke's hinge (503) and a second Hooke's hinge (505), the notches of the first Hooke's hinge (503) and the second Hooke's hinge (505) being arranged vertically, and the first Hooke's hinge (503) and the second Hooke's hinge (505) being hinged at two ends of the connecting shaft (504), respectively; The first telescopic rod (3) and the second telescopic rod (502) are both hydraulic cylinders.

2. The tilt adjustment device according to claim 1, characterized in that: One end of each first telescopic rod (3) facing the moving platform (4) is connected to the platform frame (12) by means of a ball joint.

3. The tilt adjustment device according to claim 1, characterized in that: The braking mechanism (8) comprises a brake disc (801) mounted on the second rotating shaft portion and a brake (802) for clamping the brake disc (801) to limit the rotation of the brake disc (801).

4. The tilt adjustment device according to claim 3, characterized in that: The brake disc (801) is provided with an arc-shaped scale, and the platform frame (12) is provided with an indicating needle for indicating the scale of the arc-shaped scale.

5. The tilt adjustment device according to claim 1, characterized in that: The platform frame (12) is provided with a first bearing group (15) for supporting the middle portion of the first rotating shaft portion and a second bearing group (14) for supporting the middle portion of the second bearing portion.

6. The tilt adjustment device according to claim 1, characterized in that: The front and rear sides of the platform frame (12) are both provided with a portal structure (9), and the left and right sides of the platform frame (12) are both provided with a connecting seat (10).

7. A rocking test bench, comprising a base (1) and a tilt adjustment device arranged on the base (1), characterized in that: The tilt adjustment device adopts the tilt adjustment device as described in any one of claims 1 to 6 above.

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