Fender elasticity test device

Abstract

The application relates to a fender elasticity test device and belongs to the technical field of fender production. The device comprises a pair of support tables, a support seat arranged between the upper ends of the support tables, a hydraulic cylinder arranged at the upper end of the support seat, an extrusion seat arranged at the push rod of the hydraulic cylinder, and the extrusion seat being located below the support seat and being connected with the support seat to slide. The fender elasticity test device is driven by a driving assembly to drive two supporting plates to move towards each other in the support table, to be mutually attached to support the placing table. After the support is completed, the extrusion seat can be pushed on the support seat by the hydraulic cylinder to stably move downwards, to perform a pressure test on the fenders on the placing table. The extrusion seat moves upwards and is separated from the fenders, the fenders are rebounded to perform an elasticity recovery test. After the overall test is completed, the two supporting plates are driven by the driving assembly to move in the opposite direction and are separated from the placing table, and the placing table is pushed downwards to the ground by the hydraulic push rod, so that the fenders can be quickly discharged.

Description

Technical Field

[0001] This utility model relates to the field of fender production technology, specifically to a fender elasticity testing device. Background Technology

[0002] The fender compression elasticity test simulates the collision force when a ship is berthing and tests key indicators such as the compressibility and recovery performance of the fender to evaluate its buffering capacity and durability in actual use. A special compression testing machine is used to apply pressure to the fender, and the pressure value corresponding to the compression amount is recorded. The parameters such as the compressive stiffness of the fender are obtained through the test to evaluate its buffering capacity. After the pressure is unloaded, the recovery of the fender is observed, and the recovery time and the final degree of recovery are measured.

[0003] During the fender pressure elasticity test, the fender is placed on the pressure table and unloaded after the test, both of which require manual handling. Since the fender has a certain weight, manual loading and unloading is not only inefficient but also poses certain safety risks. Therefore, we propose a fender elasticity testing device to solve this technical deficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fender elasticity testing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fender elasticity testing device, comprising a pair of support platforms, a support seat located between the upper ends of the support platforms, a hydraulic cylinder located at the upper end of the support seat, a compression seat located at the push rod of the hydraulic cylinder, the compression seat being located below the support seat and slidingly connected to the support seat, a hydraulic push rod being located at the upper end of the support platform, a placement platform being located between the push rods of the hydraulic push rod, a support plate sliding through the support platforms, and a driving assembly for driving the support plate to move in opposite directions between the support platforms.

[0006] Using the above technical solution, the hydraulic push rod pushes the placement platform down to the ground, making it easier to place the fender on the platform and avoiding the time-consuming and laborious process of manually carrying it to a high place. After placement, the hydraulic push rod moves the placement platform up to the top, and the drive assembly drives the two support plates to move towards each other in the support platform, fitting together to support the placement platform. After support is completed, the hydraulic cylinder pushes the extrusion seat to move stably down on the support seat to conduct a pressure test on the fender on the placement platform. The extrusion seat moves up and separates from the fender, and the fender rebound test is performed.

[0007] After the overall test is completed, the two pallets are moved in opposite directions by the drive component to detach from the placement platform, and the placement platform is pushed down to the ground by the hydraulic push rod, so as to realize the rapid unloading of the test fender.

[0008] As a preferred technical solution of this utility model, it also includes a control panel, which is connected to the hydraulic cylinder, the hydraulic push rod and the drive assembly.

[0009] As a preferred embodiment of this utility model, the lower end of the support platform is provided with a fixed support, and the bottom of the fixed support is provided with a plurality of mounting holes.

[0010] Using the above technical solution, the support platform provides stable support for the entire equipment, and the mounting holes facilitate the fasteners to pass through and be installed on the mounting carrier.

[0011] As a preferred technical solution of this utility model, the driving component includes a limiting hole provided at the front end of the support platform and a servo motor provided at the front end of one of the support platforms. The output end of the servo motor is provided with a bidirectional threaded rod that is connected and rotated with the other support platform.

[0012] The outer side of the bidirectional threaded rod is provided with a forward thread groove and a reverse thread groove with opposite thread orientations on both sides of the middle part. Both the forward thread groove and the reverse thread groove are threadedly connected to threaded seats that are connected to the two support plates respectively.

[0013] Using the above technical solution, the servo motor drives the bidirectional threaded rod to rotate in both directions. By utilizing the forward and reverse thread grooves on the bidirectional threaded rod to connect with the threaded seat, the threaded seat is driven to move in opposite directions within the limiting hole when the bidirectional threaded rod rotates, while the support plate moves within the support platform.

[0014] As a preferred embodiment of this utility model, the end of the bidirectional threaded rod away from the servo motor has a movable seat that rotates around the center, and the movable seat is connected to the support platform.

[0015] By adopting the above technical solution, the rotatable connection between the bidirectional threaded rod and the movable seat ensures the stability of the bidirectional threaded rod's rotation.

[0016] As a preferred embodiment of this utility model, when the two trays are joined together, the trays and the support platform are not separated.

[0017] By adopting the above technical solution, the inability to reset the pallet after it moves and separates from the support platform can be avoided.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] This fender elasticity testing device uses a hydraulic push rod to move the placement platform down to the ground, making it easier to place the fender on the platform and avoiding the time-consuming and laborious process of manually carrying it to a high place. After placement, the hydraulic push rod moves the placement platform up to the top, and the drive assembly drives two support plates to move towards each other within the support platform, fitting together to support the placement platform. After support is completed, the hydraulic cylinder pushes the compression seat to move stably down on the support seat to perform a pressure test on the fender on the placement platform. When the compression seat moves up and separates from the fender, the fender rebound test and elastic recovery test are performed.

[0020] After the overall test is completed, the two pallets are moved in opposite directions by the drive component to detach from the placement platform, and the placement platform is pushed down to the ground by the hydraulic push rod, so as to realize the rapid unloading of the test fender. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a side perspective view of the present invention;

[0023] Figure 3 This is a bottom-view perspective view of the present invention.

[0024] In the diagram: 1. Support platform; 2. Support base; 3. Hydraulic cylinder; 4. Extrusion seat; 5. Hydraulic push rod 1; 6. Control panel; 7. Placement platform; 8. Pallet; 9. Limiting hole; 10. Servo motor; 11. Bidirectional threaded rod; 12. Threaded seat. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 3 The fender elasticity testing device in this embodiment mainly consists of a support platform 1, a support base 2, a hydraulic cylinder 3, a pressing base 4, a hydraulic push rod 5, a control panel 6, a placement platform 7, a tray 8, and a drive assembly. The device has a compact overall structure, and the components work together to achieve elasticity testing of the fender. At the same time, it effectively solves the problems of low efficiency and safety risks associated with manual loading and unloading in the prior art.

[0027] There is a pair of support platforms 1, which are symmetrically distributed from left to right. The lower surface of the support platform 1 is fixed with a fixed support. The bottom of the fixed support has four equally spaced annular mounting holes. By passing fasteners through the mounting holes, the entire device can be stably installed on the mounting carrier, providing a reliable support foundation for the device.

[0028] The support base 2 is fixed between the upper surfaces of a pair of support platforms 1, serving to support and connect the upper components.

[0029] The hydraulic cylinder 3 is mounted and fixed on the upper surface of the support base 2, with its push rod facing downwards. The hydraulic cylinder 3 provides the main pressure power for the entire test device.

[0030] The compression seat 4 is fixed at the push rod of the hydraulic cylinder 3, located below the support seat 2, and is connected and slidably connected to the support seat 2. When the hydraulic cylinder 3 works, it pushes the compression seat 4 to move stably down or up on the support seat 2, thereby applying pressure or releasing pressure to the fender placed in the corresponding position.

[0031] Hydraulic push rod 5 is fixed to the upper surface of support platform 1 with its push rod facing downward. A placement platform 7 is fixed horizontally and parallel between the push rods of hydraulic push rod 5 and the two support platforms 1. Hydraulic push rod 5 can push the placement platform 7 to move up and down, which facilitates the placement and removal of the fender.

[0032] The control panel 6 is connected to the hydraulic cylinder 3, the hydraulic push rod 5, and the drive assembly. As the control center of the entire device, the control panel 6 can precisely control the working status of the hydraulic cylinder 3, the hydraulic push rod 5, and the servo motor 10 in the drive assembly through preset programs or operator instructions, thereby realizing automated control of the test process.

[0033] The placement platform 7 is used to place the fender to be tested. It moves up and down by being pushed by the hydraulic push rod 5, providing a stable support platform for the fender during the test.

[0034] The support plate 8 is slidably installed in the support platform 1 from left to right. The function of the support plate 8 is to support the placement platform 7 by moving in opposite directions after the placement platform 7 is moved to the top, so as to ensure the stability of the placement platform 7 during the test.

[0035] A drive assembly for moving in opposite directions is provided between the support platforms 1, with drive plates 8 between them.

[0036] The driver components include:

[0037] Limiting hole 9: It is opened on the front surface of the support platform 1 to provide limiting and guiding function for the movement of the pallet 8, and to ensure that the pallet 8 maintains linear movement during the movement.

[0038] Servo motor 10: It is installed and fixed on the right front surface of the right support platform 1, and serves as the power source for the drive component.

[0039] Bidirectional threaded rod 11: The output end of the servo motor 10 is connected and fixed to the bidirectional threaded rod 11, and drives it to rotate. The end of the bidirectional threaded rod 11 away from the servo motor 10 has a movable seat that rotates in the same circle. The movable seat is connected and fixed to the left front surface of the left support platform 1 to ensure the stability of the rotation of the bidirectional threaded rod 11. The outer side of the bidirectional threaded rod 11 is provided with a forward thread groove and a reverse thread groove with opposite thread orientations on both sides of the middle part.

[0040] Threaded seat 12: Both the forward and reverse threaded grooves are threaded with threaded seats 12 that are respectively connected and fixed to the two support plates 8. When the servo motor 10 drives the bidirectional threaded rod 11 to rotate forward and reverse, the threaded connection between the forward and reverse threaded grooves and the threaded seat 12 enables the threaded seat 12 to move in opposite directions within the limiting hole 9, thereby driving the support plate 8 to move within the support platform 1. When the two support plates 8 are joined together, the support plate 8 and the support platform 1 do not separate, thus preventing the support plate 8 from being unable to reset after moving and separating from the support platform 1.

[0041] Structural components such as support platform 1, support base 2, placement platform 7, and pallet 8: High-strength steel, such as Q345B steel, is preferred. This type of steel has good mechanical properties and can withstand greater pressure and load, ensuring the stability and reliability of the device during long-term use. At the same time, the steel surface can be sandblasted to remove surface oxide scale and rust, and then coated with anti-rust paint to further improve its corrosion resistance and extend its service life.

[0042] Servo motor 10: A high-performance AC servo motor is selected, which has the advantages of fast response speed, high control accuracy and stable operation. Servo motor 10 is equipped with an encoder, which can provide real-time feedback on the speed and position information of the motor, making it easy for the control panel 6 to perform precise control.

[0043] The double-threaded rod 11 and threaded seat 12: The double-threaded rod 11 is made of 40Cr alloy steel, which undergoes quenching and tempering treatment and precision machining to ensure the accuracy and strength of its threads. The threaded seat 12 is made of copper alloy material, which has good wear resistance and self-lubricating properties, reducing friction with the double-threaded rod 11 and improving transmission efficiency and service life.

[0044] Hardware configuration of control console 6: Control console 6 uses an industrial computer as the core control unit and is equipped with a high-resolution touch screen as the human-machine interface. The industrial computer has powerful data processing capabilities and stable operating performance, which can meet the requirements of the test device for control accuracy and real-time performance. The touch screen can intuitively display test parameters, operating status and other information. Operators can conveniently set test parameters, start and stop the test through touch operation.

[0045] Sensor system: The device is equipped with a variety of sensors to monitor various parameters in real time during the test. For example, a pressure sensor is installed on the compression seat 4 to measure the pressure applied by the compression seat 4 to the fender; a displacement sensor is installed on the placement platform 7 to measure the compression and rebound of the fender during the compression process. The sensors transmit the collected signals to the industrial computer on the control panel 6. After processing and analysis, the test data can be displayed in real time on the touch screen and a test report can be generated.

[0046] Detailed structural design principles and usage steps,

[0047] Experiment preparation phase:

[0048] Install the device onto a stable mounting carrier through the mounting holes on the fixed support, ensuring that the device is placed horizontally.

[0049] Turn on the power, start the control panel 6, initialize the device, and check whether the operating status of each component is normal.

[0050] According to the specifications and test requirements of the fender, parameters such as the pressure, extrusion speed, and holding time of the hydraulic cylinder 3, as well as the lifting speed and stroke of the hydraulic push rod 5, are set on the control panel 6.

[0051] Fender placement stage:

[0052] The control panel 6 controls the hydraulic push rod 5 to extend, pushing the placement platform 7 down to the ground.

[0053] The operator places the fender to be tested on the placement platform 7, ensuring that the fender is placed stably.

[0054] Fender lifting and support phase:

[0055] The control panel 6 controls the hydraulic push rod 5 to retract, which moves the placement platform 7 to the top.

[0056] The control panel 6 controls the servo motor 10 to rotate forward, which drives the bidirectional threaded rod 11 to rotate. Through the forward and reverse threaded grooves on the bidirectional threaded rod 11, it connects with the threaded seat 12, causing the threaded seat 12 to move towards each other within the limiting hole 9. At the same time, it drives the two support plates 8 to move towards each other within the support platform 1, and they fit together to support the placement platform 7.

[0057] Fender elasticity test phase:

[0058] The control panel 6 controls the hydraulic cylinder 3 to extend, pushing the compression seat 4 to move stably downward on the support seat 2, applying pressure to the fender on the placement platform 7. The pressure sensor measures the pressure applied to the fender by the compression seat 4 in real time and transmits the signal to the control panel 6. The displacement sensor measures the compression of the fender in real time and transmits the signal to the control panel 6.

[0059] When the pressure reaches the preset value, the hydraulic cylinder 3 stops extending and maintains the pressure for a period of time (pressure holding time) to conduct a pressure holding test.

[0060] After the pressure holding time ends, the control panel 6 controls the hydraulic cylinder 3 to retract, the compression seat 4 moves upward and separates from the fender, the fender begins to rebound, the displacement sensor continues to measure the rebound amount of the fender and transmits the signal to the control panel 6.

[0061] Fender cutting stage:

[0062] After the test is completed, the control panel 6 controls the servo motor 10 to reverse, which drives the bidirectional threaded rod 11 to rotate in the opposite direction. Through the forward and reverse threaded grooves on the bidirectional threaded rod 11, it connects with the threaded seat 12, causing the threaded seat 12 to move in opposite directions within the limiting hole 9. At the same time, it drives the two support plates 8 to move in opposite directions within the support platform 1 and disengage from the placement platform 7.

[0063] The control panel 6 controls the hydraulic push rod 5 to extend, pushing the placement platform 7 down to the ground. The operator then removes the tested fender from the placement platform 7, completing one test cycle.

[0064] In summary, this utility model fender elasticity testing device, through reasonable structural design and advanced control system, realizes the automated operation of fender elasticity testing, effectively improving testing efficiency and safety, and has high practical value and promotion significance.

[0065] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fender elasticity testing device, comprising a pair of support platforms, a support seat disposed between the upper ends of the support platforms, a hydraulic cylinder disposed at the upper end of the support seat, a compression seat disposed at the push rod of the hydraulic cylinder, the compression seat being located below the support seat and slidingly connected to the support seat, characterized in that, The upper end of the support platform is provided with a hydraulic push rod, and a placement platform is provided between the push rods of the hydraulic push rod. The placement platform is located between the support platforms, and a support plate slides through the support platform from left to right. A drive assembly is provided between the support platforms to drive the support plate to move in opposite directions.

2. The fender elasticity testing device according to claim 1, characterized in that: It also includes a control panel, which is connected to the hydraulic cylinder, the hydraulic push rod, and the drive assembly.

3. The fender elasticity testing device according to claim 1, characterized in that: The lower end of the support platform is provided with a fixed support, and the bottom of the fixed support is provided with multiple mounting holes.

4. The fender elasticity testing device according to claim 1, characterized in that: The drive assembly includes a limiting hole at the front end of the support platform and a servo motor at the front end of one of the support platforms. The output end of the servo motor is provided with a bidirectional threaded rod that is connected to and rotates with the other support platform. The outer side of the bidirectional threaded rod is provided with a forward thread groove and a reverse thread groove with opposite thread orientations on both sides of the middle part. Both the forward thread groove and the reverse thread groove are threadedly connected to threaded seats that are connected to the two support plates respectively.

5. The fender elasticity testing device according to claim 4, characterized in that: The end of the bidirectional threaded rod away from the servo motor has a movable seat that rotates around the center, and the movable seat is connected to the support platform.

6. The fender elasticity testing device according to claim 4, characterized in that: When the two trays are joined together, the trays and the support platform do not separate.

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