A swing simulation test method
By simulating the oscillation of cargo on a wave compensation test bench in multiple directions, the problem of simulating the oscillation of cargo on a marine crane was solved, ensuring that the crane's movements are synchronized with the waves and protecting the safety of the cargo.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-29
- Publication Date
- 2026-03-06
AI Technical Summary
Existing technologies cannot effectively simulate the swaying of cargo on a marine crane vessel under the action of waves, making it difficult to verify the crane's actions.
A wave compensation test bench is used to simulate the multi-directional swing of the sensor in the X, Y, and Z axes by combining a first swing device, a second swing device, and a lifting device, thereby simulating different wave effects.
It achieves precise simulation of crane movements, ensuring that the crane can respond accordingly to waves and avoid damage to goods.
Smart Images
Figure CN115655646B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a crane wave compensation test, specifically to a swing simulation test method. 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 swing simulation test method that can swing alone in one direction or swing simultaneously in three directions; it can detect different wave swing effects.
[0004] To achieve the above objectives, the technical solution of the present invention is: a swing simulation test method, implemented by a wave compensation test bench, the wave compensation test bench including 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, the first swing direction, the second swing direction and the third movement direction are set perpendicularly.
[0005] 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.
[0006] 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.
[0007] 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. A sensor is provided on the third support.
[0008] The swing simulation test method includes the following steps:
[0009] S1. If the sensor needs to be driven to move in one direction, proceed to S2; if the sensor needs to be driven to move in sequence along the X-axis, Y-axis and Z-axis, proceed to S9; if the sensor needs to be driven to move in the X-axis, Y-axis and Z-axis simultaneously, proceed to S8.
[0010] S2. If the sensor needs to be driven along the X-axis, proceed to S2; if the sensor needs to be driven along the Y-axis, proceed to S3; if the sensor needs to be driven along the Z-axis, proceed to S4.
[0011] S3. First swing drive action: The first swing drive drives the first swing frame to swing along the X-axis, and the first swing frame drives the sensor to swing along the X-axis; the sensor acquires the current swing data.
[0012] S4. Second swing drive action: The second swing drive drives the second swing frame to swing along the Y-axis, and the second swing frame drives the sensor to swing along the Y-axis; the sensor acquires the current swing data.
[0013] S5, Lifting drive action, the lifting drive drives the third support to move along the Z-axis, the third support drives the sensor to move along the Z-axis; the sensor acquires the current swing data.
[0014] S6. Preset the first timing limit, the second timing limit, and the third timing limit. The first timing limit is the time limit for the sensor to move along the X-axis, the second timing limit is the time limit for the sensor to move along the Y-axis, and the third timing limit is the time limit for the sensor to move along the Z-axis.
[0015] S7. The first time limit begins, proceed to S3. When the first time limit ends, the second time limit begins, proceed to S4. When the second time limit ends, the third time limit begins, proceed to S5.
[0016] S8, simultaneously perform S3-S5.
[0017] The above method allows for both individual swinging in one direction and simultaneous swinging in three directions, enabling the simulation of different wave-like effects. When swinging in one direction is required, the first swinging device, the second swinging device, or the lifting device moves the sensor along the X-axis, Y-axis, or Z-axis. For X-axis swing, the first swinging device drives the sensor on the lifting device to swing in the first swinging direction. For Y-axis swing, the second swinging device drives the sensor on the lifting device to swing in the second swinging direction. For Z-axis swing, the lifting device moves the sensor up and down in the third movement direction. This allows the sensor to move in three different directions. Furthermore, when simultaneous movement in all three directions is required, the first, second, and third swinging directions are perpendicular, allowing the lifting device to move along the X-axis, Y-axis, and Z-axis, thus simulating different wave-like effects.
[0018] 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.
[0019] The above setup uses a lifting winch to raise and lower the steel wire rope, resulting in a simple structure.
[0020] Furthermore, both the first swing drive and the second swing drive are crank-connecting rod mechanisms.
[0021] Furthermore, in S3, the first swing drive causes the sensor to swing back and forth along the X-axis.
[0022] Furthermore, in S4, the second swing drive causes the sensor to swing back and forth along the Y-axis. Attached Figure Description
[0023] Figure 1 A front view of the wave compensation test bench for realizing the present invention.
[0024] Figure 2 A side view of the wave compensation test bench for implementing the present invention.
[0025] Figure 3 This is a schematic diagram showing the lifting device and the first swing device after they have been activated in the wave compensation test bench of the present invention.
[0026] Figure 4 A schematic diagram showing the operation of the lifting device and the second swing device in the wave compensation test bench of the present invention. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0028] like Figure 1-4 As shown; a swing simulation test method, using a wave compensation test bench, the 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, the first swing direction K1, the second swing direction K2 and the third movement direction K3 are set vertically.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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 of the two fixed rods 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.
[0035] 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.
[0036] The swing simulation test method includes the following steps:
[0037] S1. If the sensor needs to be driven to move in one direction, proceed to S2; if the sensor needs to be driven to move in sequence along the X-axis, Y-axis and Z-axis, proceed to S9; if the sensor needs to be driven to move in the X-axis, Y-axis and Z-axis simultaneously, proceed to S8.
[0038] S2. If the sensor needs to be driven along the X-axis, proceed to S3; if the sensor needs to be driven along the Y-axis, proceed to S4; if the sensor needs to be driven along the Z-axis, proceed to S5.
[0039] S3. First swing drive action: The first swing drive drives the first swing frame to swing along the X-axis, and the first swing frame drives the sensor to swing along the X-axis; the sensor acquires the current swing data.
[0040] S4. Second swing drive action: The second swing drive drives the second swing frame to swing along the Y-axis, and the second swing frame drives the sensor to swing along the Y-axis; the sensor acquires the current swing data.
[0041] S5, Lifting drive action, the lifting drive drives the third support to move along the Z-axis, the third support drives the sensor to move along the Z-axis; the sensor acquires the current swing data.
[0042] S6. Preset the first timing limit, the second timing limit, and the third timing limit. The first timing limit is the time limit for the sensor to move along the X-axis, the second timing limit is the time limit for the sensor to move along the Y-axis, and the third timing limit is the time limit for the sensor to move along the Z-axis.
[0043] S7. The first time limit begins, proceed to S3. When the first time limit ends, the second time limit begins, proceed to S4. When the second time limit ends, the third time limit begins, proceed to S5.
[0044] S8, simultaneously perform S2-S5.
[0045] The above method allows for both individual swings in one direction and simultaneous swings in three directions, enabling the simulation of different wave-like effects. When swinging in one direction is required, the first swing device 1, the second swing device, or the lifting device actuates, causing the sensor to move along the X-axis, Y-axis, or Z-axis. For X-axis swing, the first swing device drives the sensor on the lifting device 3 to swing along the first swing direction K1. For Y-axis swing, the second swing device 2 drives the sensor on the lifting device 3 to swing along the second swing direction K2. For Z-axis swing, the lifting device 3 moves the sensor up and down along the third movement direction K3. This allows the sensor to move in three different directions. Furthermore, when simultaneous movement in all three directions is required, the first swing direction K1, the second swing direction K2, and the third movement direction K3 are perpendicularly aligned, allowing the lifting device 3 to move along the X-axis, Y-axis, and Z-axis, thus simulating different wave-like effects.
[0046] In use, 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 method of a swing simulation test, characterized by: The wave compensation test platform is achieved, and the wave compensation test platform comprises a first swinging device, a second swinging device and a lifting device; the lifting device is installed on the second swinging device, the second swinging device is installed on the first swinging device, the first swinging device is used for driving the lifting device to swing in a first swinging direction, the second swinging device is used for driving the lifting device to swing in a second swinging direction, and the lifting device is lifted in a third moving direction; the first swinging direction, the second swinging direction and the third moving direction are vertically arranged; The first swinging device comprises a first fixed frame, a first swinging frame and a first swinging drive; the first swinging frame is hinged to the first fixed frame; and the first swinging drive is connected to the first swinging frame and drives the first swinging frame to swing relative to the first fixed frame; A first supporting piece is arranged on the top of the first swinging frame; the second swinging device comprises a second fixed frame, a second swinging frame and a second swinging drive; the second fixed frame is connected to the first supporting piece; the second swinging frame is hinged to the second fixed frame; and the second swinging drive is connected to the second swinging frame and drives the second swinging frame to swing relative to the second fixed frame; A second supporting piece is arranged on the top of the second swinging frame; the lifting device comprises a lifting drive, a third supporting piece, two fixed rods and two guide sleeves; one fixed rod is arranged on one side of the second supporting piece, and the other fixed rod is arranged on the other side of the second supporting piece; limit pieces are arranged on the ends of the two fixed rods away from the second supporting piece; the guide sleeves are slidably arranged on the fixed rods and located between the second supporting piece and the limit pieces; the third supporting piece is connected to the two guide sleeves; the lifting drive is connected to the third supporting piece and drives the third supporting piece to slide along the fixed rods; and a sensor is arranged on the third supporting piece; The swing simulation test method comprises the following steps: S1, if the sensor needs to be driven to move in one direction, S2 is performed; if the sensor needs to be driven to move in the X-axis direction, the Y-axis direction and the Z-axis direction in sequence, S9 is performed; if the sensor needs to be driven to move in the X-axis direction, the Y-axis direction and the Z-axis direction simultaneously, S8 is performed; S2, if the sensor needs to be driven to move in the X-axis direction, S3 is performed; if the sensor needs to be driven to move in the Y-axis direction, S4 is performed; if the sensor needs to be driven to move in the Z-axis direction, S5 is performed; S3, the first swinging drive is actuated, the first swinging drive drives the first swinging frame to swing in the X-axis direction, and the first swinging frame drives the sensor to swing in the X-axis direction; the sensor obtains the current swing data; S4, the second swinging drive is actuated, the second swinging drive drives the second swinging frame to swing in the Y-axis direction, and the second swinging frame drives the sensor to swing in the Y-axis direction; the sensor obtains the current swing data; S5, the lifting drive is actuated, the lifting drive drives the third supporting piece to move in the Z-axis direction, and the third supporting piece drives the sensor to move in the Z-axis direction; the sensor obtains the current swing data; S6, a first timing limit, a second timing limit and a third timing limit are preset; the first timing limit is the time limit for the sensor to move in the X-axis direction; the second timing limit is the time limit for the sensor to move in the Y-axis direction; and the third timing limit is the time limit for the sensor to move in the Z-axis direction. S7, the first time limit timer starts, and S3 is performed; when the first time limit timer ends, the second time limit timer starts, and S4 is performed; when the second time limit timer ends, the third time limit timer starts, and S5 is performed; S8, S3-S5 are performed simultaneously.
2. A method of oscillating simulation test according to claim 1, characterized in that: The lifting drive is a lifting winch, and the lifting winch is fixed on the third supporting member; the steel wire rope arranged on the lifting winch is connected with the limiting member.
3. The method of claim 1, wherein: The first swing drive and the second swing drive are both crank connecting rod mechanisms.
4. A method of oscillating simulation test according to claim 3, characterized in that: In S3, the first swing drive drives the sensor to swing back and forth along the X-axis direction.
5. The method of claim 3, wherein: In S4, the second swing drive drives the sensor to swing back and forth along the Y-axis direction.
Citation Information
Patent Citations
Land test method for active wave compensation performance of marine retractable system
CN114608798A
Three-shaft swinging test bed
CN201359558Y