Wave compensation test bed

Abstract

The application provides a wave compensation test bed, which comprises a first swing device, a second swing device and a lifting device; the lifting device is installed on the second swing device, the second swing device is installed on the first swing device, the first swing device is used for driving the lifting device to swing in a first swing direction, the second swing device is used for driving the lifting device to swing in a second swing direction, the lifting device is lifted in a third movement direction, and the first swing direction, the second swing direction and the third movement direction are vertically arranged; the first swing direction, the second swing direction and the third movement direction enable the lifting device to move in three different directions, and the first swing direction, the second swing direction and the third movement direction are vertically arranged; therefore, the lifting device can move in an X-axis direction, a Y direction and a Z direction; and the wave swing can be simulated.

Description

Technical Field

[0001] This invention relates to wave compensation testing for cranes, and more specifically to a wave compensation test bench. Background Technology

[0002] Offshore crane vessels sway with the waves, causing cargo on the hull to move up and down. To prevent damage to the cargo, current technology uses a crane to connect the cargo. When the hull moves upward, the crane simultaneously lifts the cargo away from the deck; when the hull moves downward, the crane simultaneously lowers the cargo onto the deck. However, whether the crane can perform the corresponding actions according to the waves needs to be verified in advance. This requires oscillating equipment to output simulated data, and then inputting the simulated wave data into the crane to test whether the crane can act according to the simulated data. Summary of the Invention

[0003] This invention provides a wave compensation test bench that moves in three directions to simulate the oscillation of waves.

[0004] To achieve the above objectives, the technical solution of the present invention is: a wave compensation test bench, comprising a first swing device, a second swing device, and a lifting device; the lifting device is mounted on the second swing device, the second swing device is mounted on the first swing device, the first swing device is used to drive the lifting device to swing along a first swing direction, the second swing device is used to drive the lifting device to swing along a second swing direction, and the lifting device moves up and down along a third movement direction, wherein the first swing direction, the second swing direction, and the third movement direction are vertically arranged.

[0005] The above setup involves a first swinging device driving the lifting device to swing in a first swinging direction, a second swinging device driving the lifting device to swing in a second swinging direction, and the lifting device moving up and down in a third movement direction. This allows the lifting device to move in three different directions, with the first swinging direction, the second swinging direction, and the third movement direction being perpendicular to each other. Consequently, the lifting device can move along the X-axis, the Y-axis, and the Z-axis, thus simulating the oscillation of waves.

[0006] Furthermore, the first swing device includes a first fixed frame, a first swing frame, and a first swing drive. The first swing frame is hinged to the first fixed frame, and the first swing drive is connected to the first swing frame and drives the first swing frame to swing relative to the first fixed frame.

[0007] The above configuration uses a first fixed frame to fix the fixed end of the first swing device, and a first swing drive to drive the first swing frame to move, thereby realizing the action of the output end of the first swing device. The structure is simple.

[0008] Furthermore, a first support member is provided on the top of the first swing frame, and the second swing device includes a second fixed frame, a second swing frame and a second swing drive. The second fixed frame is connected to the first support member, the second swing frame is hinged to the second fixed frame, and the second swing drive is connected to the second swing frame and drives the second swing frame to swing relative to the second fixed frame.

[0009] The above configuration uses a second fixed frame to fix the fixed end of the second swing device, and a second swing drive to drive the second swing frame to move, thereby realizing the output end movement of the second swing device. The structure is simple. At the same time, the second fixed frame is connected to the first swing frame through the first support member, so the second swing frame moves relative to the first swing frame and there is no mutual interference between the two. In this way, when the first swing frame and the second swing frame swing at the same time, the lifting device can be driven to move simultaneously along the X-axis and Y-axis.

[0010] Furthermore, a second support is provided at the top of the second swing frame. The lifting device includes a lifting drive, a third support, two fixed rods, and two guide sleeves. One fixed rod is located on one side of the second support, and the other fixed rod is located on the other side of the second support. A limiting member is provided at the end of the two fixed rods away from the second support. The guide sleeve is slidably disposed on the fixed rod and located between the second support and the limiting member. The third support is connected to the two guide sleeves. The lifting drive is connected to the third support and drives the third support to slide along the fixed rod.

[0011] With the above configuration, the lifting device is movably mounted on the second swing device, and the third support member can move independently relative to the second swing frame and the first swing frame; thus, the third support member can move simultaneously along the X-axis, Y-axis and Z-axis directions.

[0012] Furthermore, the lifting drive is a lifting winch, which is fixed on the third support member, and the wire rope wound on the lifting winch is connected to the limiting member.

[0013] The above setup uses a lifting winch to raise and lower the steel wire rope, resulting in a simple structure.

[0014] Furthermore, both the first swing drive and the second swing drive are crank-connecting rod mechanisms. Attached Figure Description

[0015] Figure 1 This is a front view of the present invention.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a schematic diagram showing the lifting device and the first swinging device after they have been activated in this invention.

[0018] Figure 4 This is a schematic diagram showing the lifting device and the second swinging device after they have been activated in this invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-4 As shown; a wave compensation test bench includes a first swing device 1, a second swing device 2, and a lifting device 3; the lifting device 3 is mounted on the second swing device 2, and the second swing device 2 is mounted on the first swing device 1; the first swing device 1 is used to drive the lifting device 3 to swing along a first swing direction K1, the second swing device 2 is used to drive the lifting device 3 to swing along a second swing direction K2, and the lifting device 3 moves up and down along a third movement direction K3, wherein the first swing direction K1, the second swing direction K2, and the third movement direction K3 are vertically arranged.

[0021] The first swing device 1 includes a first fixed frame 11, a first swing frame 12, and a first swing drive 13. The first swing frame 12 is hinged to the first fixed frame 11. In this embodiment, the first swing drive 13 is a crank-connecting rod mechanism. The output end of the first swing drive 13 is hinged to the first swing frame 12, and the first swing drive 13 drives the first swing frame 12 to swing relative to the first fixed frame 11. (Refer to...) Figure 3 As shown; by setting up a crank-connecting rod mechanism, the first swing drive 13 can drive the lifting device 3 to swing back and forth in the K1 direction by rotating in one direction.

[0022] The first fixed end of the first swing device 1 is fixed by the first fixed frame 11, and the first swing drive 13 drives the first swing frame 12 to move, so as to realize the output end of the first swing device 1. The structure is simple.

[0023] A first support member 14 is provided at the top of the first swing frame 12. The second swing device 2 includes a second fixed frame 21, a second swing frame 22, and a second swing drive 23. The second fixed frame 21 is connected to the first support member 14, and the second swing frame 22 is hinged to the second fixed frame 21. In this embodiment, the second swing drive 23 is a crank-connecting rod mechanism. The output end of the second swing drive 23 is hinged to the second swing frame 22, and the second swing drive 23 drives the second swing frame 22 to swing relative to the second fixed frame 21. (Refer to...) Figure 4 As shown; by setting up a crank-connecting rod mechanism, the second swing drive 23 can drive the lifting device 3 to swing back and forth in the K2 direction by rotating in one direction.

[0024] The second fixed frame 21 fixes the fixed end of the second swing device 2, and the second swing drive 23 drives the second swing frame 22 to move, realizing the output end of the second swing device 2 to move. The structure is simple. At the same time, the second fixed frame 21 is connected to the first swing frame 12 through the first support 14, so the second swing frame moves relative to the first swing frame 12 and there is no mutual interference between the second swing frame and the first swing frame 12. In this way, when the first swing frame and the second swing frame swing at the same time, the lifting device 3 can be driven to move simultaneously along the X-axis and Y-axis.

[0025] The crank-connecting rod mechanism includes a turntable and a connecting rod. The turntable is connected to the output end of the reducer, and the turntable is also hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the first swing frame 12 and the second swing frame 22.

[0026] A second support member 24 is provided at the top of the second swing frame 22. The lifting device 3 includes a lifting drive 31, a third support member 32, two fixed rods 33, and two guide sleeves 34. One fixed rod 33 is located on one side of the second support member 24, and the other fixed rod 33 is located on the other side of the second support member 24. A limiting member 35 is provided at the end of each fixed rod 33 away from the second support member 24. The guide sleeves 34 are slidably disposed on the fixed rods 33 and located between the second support member 24 and the limiting member 35. The third support member 32 is connected to the two guide sleeves 34. The lifting drive 31 is connected to the third support member 32 and drives the third support member 32 to slide along the fixed rods 33. The lifting device 3 is movably disposed on the second swing device 2, and the third support member 32 can move independently relative to the second swing frame and the first swing frame, so that the third support member 32 can move simultaneously along the X-axis, Y-axis, and Z-axis directions.

[0027] In this embodiment, the lifting drive 31 is a lifting winch, which is fixed on the third support member 32. The lifting winch is connected to a lifting drive motor 311, which drives the lifting winch to rotate. The wire rope 312 wound on the lifting winch is connected to the limiting member 35. (Refer to...) Figure 3 , Figure 4 As shown, the lifting and lowering of the third support 32 along the K3 direction is achieved by raising and lowering the steel wire rope 312 through a lifting winch, which has a simple structure.

[0028] The above setup involves the first swinging device 1 driving the lifting device 3 to swing along the first swinging direction K1, the second swinging device 2 driving the lifting device 3 to swing along the second swinging direction K2, and the lifting device 3 moving up and down along the third movement direction K3. In this way, the lifting device 3 can move in three different directions, and the first swinging direction K1, the second swinging direction K2, and the third movement direction K3 are set perpendicularly. As a result, the lifting device 3 can move along the X-axis, the Y-axis, and the Z-axis, thus simulating the oscillation of waves.

[0029] In use, a sensor 4 is installed on the third support 32. When the lifting device 3 swings, the sensor 4 will also swing. When the position height of the third support 32 changes, the position height of the sensor 4 will also change. The movement of the first swing device 1, the second swing device 2 and the lifting device 3 simulates the swaying of waves and inputs simulated data into the sensor. Then, when the test crane can perform corresponding actions according to the waves, the crane reads the simulated data in the sensor. If the crane can control the hook to perform corresponding actions according to the movement of the first swing device 1, the second swing device 2 and the lifting device 3, it means that the crane can perform corresponding actions according to the waves.

Claims

1. A wave compensation test bench, characterized in that: It includes a first swing device, a second swing device, and a lifting device; the lifting device is installed on the second swing device, the second swing device is installed on the first swing device, the first swing device is used to drive the lifting device to swing along a first swing direction, the second swing device is used to drive the lifting device to swing along a second swing direction, and the lifting device moves up and down along a third movement direction, with the first swing direction, the second swing direction, and the third movement direction being set perpendicularly. The first swing device includes a first fixed frame, a first swing frame and a first swing drive. The first swing frame is hinged to the first fixed frame, and the first swing drive is connected to the first swing frame and drives the first swing frame to swing relative to the first fixed frame. A first support is provided on the top of the first swing frame. The second swing device includes a second fixed frame, a second swing frame and a second swing drive. The second fixed frame is connected to the first support, the second swing frame is hinged to the second fixed frame, and the second swing drive is connected to the second swing frame and drives the second swing frame to swing relative to the second fixed frame. A second support is provided at the top of the second swing frame. The lifting device includes a lifting drive, a third support, two fixed rods, and two guide sleeves. One fixed rod is located on one side of the second support, and the other fixed rod is located on the other side of the second support. A limiting member is provided at the end of the two fixed rods away from the second support. The guide sleeves are slidably disposed on the fixed rods and located between the second support and the limiting member. The third support is connected to the two guide sleeves. The lifting drive is connected to the third support and drives the third support to slide along the fixed rods. Both the first swing drive and the second swing drive are crank-connecting rod mechanisms.

2. The wave compensation test bench according to claim 1, characterized in that: The lifting drive is a lifting winch, which is fixed on the third support member, and the steel wire rope wound on the lifting winch is connected to the limiting member.

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