Swing test device for marine bearing
By designing a marine bearing swing test device, the driving motor and central shaft rod drive the swing of the test operation table, combined with the loading and unloading mechanism, the problem that the plane test of small marine bearings cannot fully simulate the swing of the ship, and achieve a comprehensive test and detection effect.
Patent Information
- Application Number
- CN202422647378.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The plane test of existing small marine bearings cannot fully simulate the loading and unloading of a ship when it sways on the sea surface, resulting in incomplete inspection.
A marine bearing swing test device is designed. By driving the motor to drive the central shaft to rotate, the bearing seat drives the test operation table to swing forward and backward. Combining the loading device and unloading mechanism, the test is simulated for swinging conditions of the ship.
The comprehensive loading and unloading detection of bearings is realized, and the actual working conditions under the conditions of swaying the ship is simulated, which improves the accuracy and comprehensiveness of the test.
Smart Images
Figure CN223229222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of swing test devices, in particular to a marine bearing swing test device. Background Art
[0002] Ship thrust bearings support the thrust shaft and withstand the push and pull forces generated by the propeller, ensuring stable operation of the shaft system. The thrust bearings effectively transmit the propeller's push and pull forces to the hull, enabling the ship to move forward and backward. They also provide axial positioning for the shaft system, maintaining its stability and accuracy during operation. Marine bearings also include an intermediate bearing, which plays an important supporting role in the ship's shaft system, primarily bearing the shaft's own weight, deformation, and radial unloading caused by rotation.
[0003] Existing small marine bearings are all tested for unloading and loading using a flat test bench. However, ships are prone to swaying as they travel on the sea (or river). Flat tests on small marine bearings cannot fully detect the loading and unloading of the bearings based on the amplitude, time, and speed of the ship's swaying. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a marine bearing swing test device.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A marine bearing swing test device comprises a test operating platform, a support and a drive motor, wherein a bearing seat is fixedly connected to the bottom of the test operating platform, the bearing seat is located in the middle of the support, a central axis rod is provided at the bottom of the test operating platform, one end of the central axis rod is rotatably connected to the support, the bearing seat is fixedly connected to the middle of the central axis rod, a pulley is provided on one side of the outside of the support, one end of the central axis rod is fixedly connected to one side of the pulley, and the other side of the pulley is fixedly connected to the output end of the drive motor, and the drive motor and the support are located on the same side of the pulley.
[0007] As a further solution of the present invention, the drive motor is located at the bottom of the test operating table, and a first side frame and a second side frame are provided at both ends of the test operating table. The two ends of the test operating table are respectively located in the middle of the first side frame and the second side frame. The first side frame includes a support rod and a retaining bolt, and the support rod is connected through the first side frame and the test operating table.
[0008] As a further solution of the present invention, the first side frame is fixedly connected to the test operating table through the support rod, and a plurality of retaining bolts are located on both sides of the first side frame. The retaining bolts are threadedly connected to both ends of the support rod, and one side of the retaining bolts is fitly connected to the outer side of the first side frame. The second side frame has the same connection structure as the first side frame.
[0009] As a further solution of the present invention, the second side frame is fixedly connected to the test operating table through a support rod, and a plurality of grooves are provided on the side of the second side frame away from the test operating table. The first side frame and one side of the test operating table are both fixedly connected with a plurality of wire trough boxes, and a base plate is provided at the bottom of the wire trough box.
[0010] As a further solution of the present invention, the first side frame and the second side frame are both fixedly connected to the top of the base plate, the support and the drive motor between the first side frame and the second side frame are both fixedly connected to the top of the base plate, the base plate is located at the bottom of the test operating table, and a distribution box seat is provided on one side of the first side frame.
[0011] As a further solution of the present invention, the bottom of the distribution box seat is fixedly connected to the top of the base plate, and the top of the distribution box seat is fixedly connected to a loading device and an unloading mechanism. The lines on one side of the loading device and the unloading mechanism pass through a wire trough box and are fixedly connected to the test operating table, and a number of universal wheels are fixedly connected to the bottom of the base plate.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The staff pulls out the support rod, releases the fixed supports at both ends of the test platform, and starts the drive motor. The drive motor drives the pulley and the central axis to rotate, so that the bearing seat drives the test platform to swing back and forth along the central axis. The test platform simulates the swing of the ship to perform multiple tests such as loading and unloading of the bearings. Because the speed of the drive motor is controllable, it is convenient for the staff to conduct comprehensive tests on the loading and unloading of the bearings according to the amplitude, time and speed of the shaking.
[0014] 2. When conducting a swing test, the staff uses tools to remove the retaining bolts, and then pulls the support rods out of the first side frame and the test bench, releasing the fixed support between the test bench and the first and second side frames. The staff places the removed support rods in the grooves of the second side frame to facilitate temporary placement of the support rods and prevent the support rods from rolling on the ground and causing external wear. The structure of the second side frame connecting the test bench is the same as that of the first side frame. The first and second side frames are inclined away from the test bench, reserving space for the test bench to swing, to prevent the test bench from colliding with the distribution box seat and the support rods in the grooves when swinging. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a marine bearing swing test device proposed by the present invention;
[0016] Figure 2 This is a structural schematic diagram of a support for a marine bearing swing test device proposed in the present invention;
[0017] Figure 3 This is a structural schematic diagram of a second side frame of a marine bearing swing test device proposed by the present invention;
[0018] Figure 4 This is a structural schematic diagram of a distribution box seat of a marine bearing swing test device proposed by the present invention;
[0019] In the figure: 1. Test operating table; 101. Bearing seat; 2. Support; 3. Central axis; 4. Pulley; 5. Drive motor; 6. First side frame; 601. Support rod; 602. Retaining bolt; 7. Second side frame; 701. Groove; 8. Wire trough box; 9. Distribution box seat; 901. Loading device; 902. Unloading mechanism; 10. Base plate; 11. Universal wheel. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0023] Reference Figure 1-Figure 4 A marine bearing swing test device includes a test platform 1, a support 2 and a drive motor 5. A bearing seat 101 is fixedly connected to the bottom of the test platform 1, and the bearing seat 101 is located in the middle of the support 2. A central axis rod 3 is provided at the bottom of the test platform 1, and one end of the central axis rod 3 is rotatably connected to the support 2. The bearing seat 101 is fixedly connected to the middle of the central axis rod 3. A pulley 4 is provided on one side of the outside of the support 2, and one end of the central axis rod 3 is fixedly connected to one side of the pulley 4. The other side of the pulley 4 is fixedly connected to the output end of the drive motor 5. The drive motor 5 and the support 2 are located on the same side of the pulley 4.
[0024] During use, the staff pulls out the support rod 601, releases the fixed supports at both ends of the test operating platform 1, and starts the drive motor 5. The drive motor 5 drives the pulley and the central axis rod 3 to rotate, so that the bearing seat 2 drives the test operating platform 1 to swing back and forth following the rotation of the central axis rod 3. The test operating platform 1 imitates the swaying of the ship to perform multiple tests such as loading and unloading of the bearings. Because the speed of the drive motor 5 is controllable, it is convenient for the staff to conduct comprehensive testing of the loading and unloading of the bearings according to the shaking amplitude, time and speed.
[0025] In this embodiment, the drive motor 5 is located at the bottom of the test operating table 1. A first side frame 6 and a second side frame 7 are provided at both ends of the test operating table 1. The two ends of the test operating table 1 are respectively located in the middle of the first side frame 6 and the second side frame 7. The first side frame 6 includes a support rod 601 and a retaining bolt 602. The support rod 601 is connected to the first side frame 6 and the test operating table 1.
[0026] During use, when conducting a swing test, the staff uses a tool to remove the retaining bolt 602, and then pulls the support rod 601 out of the first side frame 6 and the test operating table 1, thereby releasing the fixed support between the test operating table 1 and the first side frame 6 and the second side frame 7.
[0027] In this embodiment, the first side frame 6 is fixedly connected to the test bench 1 through a support rod 601. A plurality of retaining bolts 602 are located on both sides of the first side frame 6. The retaining bolts 602 are threadedly connected to both ends of the support rod 601. One side of the retaining bolts 602 is closely connected to the outer side of the first side frame 6. The second side frame 7 has the same connection structure as the first side frame 6.
[0028] When in use, the structure of the second side frame 7 connected to the test bench 1 is the same as that of the first side frame 6. The first side frame 6 and the second side frame 7 are inclined away from the side of the test bench 1, reserving swing space for the test bench 1 to avoid collision with the distribution box seat 9 and the support rod 601 in the groove 701 when the test bench 1 swings.
[0029] In this embodiment, the second side frame 7 is fixedly connected to the test bench 1 through a support rod 601. A plurality of grooves 701 are provided on the side of the second side frame 7 away from the test bench 1. A plurality of wire trough boxes 8 are fixedly connected to one side of the first side frame 6 and the test bench 1. A base plate 10 is provided at the bottom of the wire trough box 8.
[0030] During use, the staff places the disassembled support rod 601 in the groove of the second side frame 7 to facilitate the temporary placement of the support rod 601 and prevent the support rod 601 from rolling on the ground and causing external wear.
[0031] In this embodiment, the first side frame 6 and the second side frame 7 are both fixedly connected to the top of the base plate 10, the support 2 and the drive motor 5 between the first side frame 6 and the second side frame 7 are both fixedly connected to the top of the base plate 10, the base plate 10 is located at the bottom of the test operating table 1, and a distribution box seat 9 is provided on one side of the first side frame 6.
[0032] When in use, the distribution box 9 is used for power distribution control of the loading device 901 and the unloading mechanism 902. The loading device 901 is used to apply unloading to the bearing to simulate the stress conditions under actual working conditions, while the unloading mechanism 902 is used to reduce the deflection and vibration caused by the driving mechanism to ensure the accuracy of the test results. These mechanical structures work together to enable the bearing swing test device to simulate the characteristic parameters and fatigue life of the bearing under complex swing excitation conditions.
[0033] In this embodiment, the bottom of the distribution box seat 9 is fixedly connected to the top of the base plate 10, and the top of the distribution box seat 9 is fixedly connected to the loading device 901 and the unloading mechanism 902. The lines on one side of the loading device 901 and the unloading mechanism 902 pass through the wire trough box 8 and are fixedly connected to the test operating table 1. Several universal wheels 11 are fixedly connected to the bottom of the base plate 10.
[0034] When in use, the wire trough box 8 classifies and limits the lines plugged into the top of the test operating table 1 to prevent too many lines from being entangled with each other and affecting the forward and backward swing of the test operating table 1. The wire trough box 8 only has a limiting function for the lines and does not affect the telescopic movement of the lines. After the test is completed, the staff pushes the test operating table 1, and the universal wheel 11 drives the bottom plate 10 to move the position, which is convenient for the staff to transport the device.
[0035] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: the staff pulls out the support rod 601, releases the fixed supports at both ends of the test operating platform 1, starts the drive motor 5, and the drive motor 5 drives the pulley and the central axis rod 3 to rotate, so that the bearing seat 2 drives the test operating platform 1 to swing back and forth following the rotation of the central axis rod 3. The test operating platform 1 simulates the swaying of the ship to perform multiple tests such as loading and unloading of the bearing. Because the speed of the drive motor 5 is controllable, it is convenient for the staff to conduct comprehensive tests on the loading and unloading of the bearing according to the shaking amplitude, time and speed. When performing the swing test, the staff uses tools to remove the retaining bolt 60 2. Then pull the support rod 601 out of the first side frame 6 and the test bench 1, and release the fixed support of the test bench 1 and the first side frame 6 and the second side frame 7. The staff will place the disassembled support rod 601 in the groove of the second side frame 7 to facilitate the temporary placement of the support rod 601 and avoid the support rod 601 rolling on the ground and causing external wear. The structure of the second side frame 7 connecting the test bench 1 is the same as that of the first side frame 6. The first side frame 6 and the second side frame 7 are inclined away from the side of the test bench 1, reserving a swinging space for the test bench 1 to avoid the test bench 1 from colliding with the distribution box seat 9 and the support rod 601 in the groove 701 when it swings.
[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A marine bearing swing test device, comprising a test operating table (1), a support (2) and a drive motor (5), characterized in that: A bearing seat (101) is fixedly connected to the bottom of the test operating table (1), and the bearing seat (101) is located in the middle of the support (2). A central axis rod (3) is provided at the bottom of the test operating table (1), and one end of the central axis rod (3) is rotatably connected to the support (2). The bearing seat (101) is fixedly connected to the middle of the central axis rod (3). A pulley (4) is provided on one side of the outside of the support (2), and one end of the central axis rod (3) is fixedly connected to one side of the pulley (4). The other side of the pulley (4) is fixedly connected to the output end of the drive motor (5). The drive motor (5) and the support (2) are located on the same side of the pulley (4).
2. A marine bearing swing test device according to claim 1, characterized in that: The driving motor (5) is located at the bottom of the test operation table (1), and a first side frame (6) and a second side frame (7) are provided at both ends of the test operation table (1). The two ends of the test operation table (1) are respectively located in the middle of the first side frame (6) and the second side frame (7). The first side frame (6) includes a support rod (601) and a retaining bolt (602), and the support rod (601) is connected to the first side frame (6) and the test operation table (1).
3. A marine bearing swing test device according to claim 2, characterized in that: The first side frame (6) is fixedly connected to the test operation table (1) via the support rod (601), a plurality of retaining bolts (602) are located on both sides of the first side frame (6), the retaining bolts (602) are threadedly connected to both ends of the support rod (601), one side of the retaining bolts (602) is fitted and connected to the outer side of the first side frame (6), and the second side frame (7) has the same connection structure as the first side frame (6).
4. A marine bearing swing test device according to claim 3, characterized in that: The second side frame (7) is fixedly connected to the test operation table (1) via a support rod (601), and a plurality of grooves (701) are provided on a side of the second side frame (7) away from the test operation table (1). The first side frame (6) and one side of the test operation table (1) are both fixedly connected to a plurality of wire trough boxes (8), and a bottom plate (10) is provided at the bottom of the wire trough box (8).
5. A marine bearing swing test device according to claim 4, characterized in that: The first side frame (6) and the second side frame (7) are both fixedly connected to the top of the base plate (10), the support (2) and the drive motor (5) between the first side frame (6) and the second side frame (7) are both fixedly connected to the top of the base plate (10), the base plate (10) is located at the bottom of the test operating table (1), and a distribution box seat (9) is provided on one side of the first side frame (6).
6. A marine bearing swing test device according to claim 5, characterized in that: The bottom of the distribution box seat (9) is fixedly connected to the top of the base plate (10), and the top of the distribution box seat (9) is fixedly connected to a loading device (901) and an unloading mechanism (902). The lines on one side of the loading device (901) and the unloading mechanism (902) pass through the wire trough box (8) and are fixedly connected to the test operating table (1). The bottom of the base plate (10) is fixedly connected to a plurality of universal wheels (11).