A floating body test system device

Abstract

The present invention relates to a floating body test system device, which includes an elevated support platform, a traction winch, an underwater caisson and a floating body, wherein the elevated support platform is installed on a shore or an underwater platform, a traction winch is installed on the elevated support platform, the floating body is located on the water surface, a cable is connected to the lower end of the floating body, an underwater pulley is installed on the upper end of the underwater caisson, the underwater caisson sinks to the bottom of the water, the cable passes through the underwater pulley at the upper end of the underwater caisson, and finally connects to the traction winch. The advantage is that by dragging the floating body underwater, it is easier to apply a downward pulling force, and it can ensure that the downward pulling force is balanced. When the floating body is at a certain depth in the water, the force is stable, the test effect is accurate, and the floating body test requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of floating body underwater fixing, and in particular to a floating body test system device. Background Art

[0002] In the past, when the floating body was tested in the water, after floating on the water surface, one or more boats floated on one side or all around the floating body. The boats were equipped with telescopic rods to press down on the floating body from one side or all around to implement the corresponding experimental operation. Sometimes the floating body needs to be located at a certain depth underwater. However, this operation is difficult to ensure that the pressure on all sides is balanced. The operation is difficult, the test data is not accurate, and multiple tests are required. If there are wind and waves affecting the ship, the downward pressure on the floating body will be more unstable. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a floating body test system device, which is simple in design, easy to use and meets the test requirements.

[0004] The technical solution of the present invention is as follows:

[0005] A floating body test system device comprises an elevated support platform, a traction winch, an underwater caisson and a floating body. The elevated support platform is installed on a shore or an underwater platform, the traction winch is installed on the elevated support platform, the floating body is located on the water surface, a cable is connected to the lower end of the floating body, an underwater pulley is installed on the upper end of the underwater caisson, the underwater caisson sinks to the bottom of the water, the cable passes through the underwater pulley at the upper end of the underwater caisson, and is finally connected to the traction winch.

[0006] The underwater caisson comprises an upper plate, a lower plate, through bolts, concrete, a hanging assembly and an underwater pulley. The upper plate and the lower plate are fixedly connected up and down by through bolts with a gap in the middle, in which concrete is poured. Underwater pulleys are respectively installed on both sides of the upper end of the upper plate, and hanging assemblies are also designed on both sides of the upper end of the upper plate located inside the underwater pulleys.

[0007] The hanging assembly includes an upper splint, a lower splint, a vertical plate, and a hanging plate. Four parallel vertical plates are fixedly designed on the upper splint, which are the first vertical plate, the second vertical plate, the third vertical plate and the fourth vertical plate respectively. Two hanging plates are designed, and one hanging plate is vertically fixed between the first vertical plate and the second vertical plate, and the other hanging plate is vertically fixed between the third vertical plate and the fourth vertical plate. A reinforcement plate is also installed between the second vertical plate and the third vertical plate. A hook hole is designed on the upper end of the two hanging plates; the upper splint is located on the upper plate, and the lower splint is located below the lower plate. A number of through bolts are used between the upper splint, the upper plate, the concrete, the lower plate and the lower splint, and they are locked and fixed together.

[0008] The upper end of the vertical plate is chamfered; the upper end of the reinforcing plate is designed to be an arc structure.

[0009] The underwater pulley comprises an upper fixed plate, a lower fixed plate, a supporting plate and a pulley assembly, the upper fixed plate is located on the upper plate, the lower fixed plate is located below the lower plate, and a plurality of through bolts are passed between the upper fixed plate and the lower fixed plate, which penetrate the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in turn and are locked and fixed together; the supporting plate is installed on the upper fixed plate and a certain distance is left between the supporting plate and the upper fixed plate, and a plurality of through bolts are also passed around the supporting plate, which penetrate the supporting plate, the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in turn and are locked and fixed, a connecting rod is fixedly designed in the middle of the supporting plate, the lower end of the connecting rod penetrates the supporting plate, the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in turn and are locked and fixed, and the upper end of the connecting rod is connected to the lower end of the pulley assembly.

[0010] The pulley assembly includes a pulley, two side plates, a connecting block, and a spherical pad. The pulley is rotatably installed between the upper ends of the two side plates, and a connecting block is installed between the lower ends of the two side plates. The lower ends of the two side plates are designed so that both ends of the connecting block can be rotatably installed on the side plates on the corresponding sides. A through hole is opened in the middle of the connecting block, and the upper end of the through hole is designed as a spherical groove, and the lower end of the through hole is designed as a bell mouth. After the upper end of the connecting rod passes through the through hole, it is locked by a nut and a spherical pad is installed between the lower end of the nut and the connecting block, and the spherical pad can be slidably installed in the spherical groove.

[0011] The two side plates are fixed by bolts passing through them from left to right in the middle and a hollow cylinder is sleeved on the bolts. The outer sides of the two side plates are respectively designed with cross plates, and the two cross plates are also located on both sides of the pulley. The front ends of the two cross plates are connected by a rotating shaft. One circle of the pulley is designed as a V-shaped guide groove, and the hollow cylinder and the rotating shaft are both located on the outer side of the V-shaped guide groove of the pulley.

[0012] The lower end of the through bolt extends out of the lower plate by a certain distance to form an anchor rod.

[0013] The advantages of the present invention are that by dragging the float underwater, it is easier to apply a downward force and can ensure that the downward force is balanced. When the float is at a certain depth in the water, the force is stable, ensuring that the test effect is accurate and meeting the requirements of the float test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the present invention.

[0015] Figure 2 yes Figure 1 Side view of.

[0016] Figure 3 It is a schematic diagram of the underwater caisson of the present invention.

[0017] Figure 4 yes Figure 3 Top view of the .

[0018] Figure 5 yes Figure 3 Cross-sectional view of the center suspension assembly.

[0019] Figure 6 yes Figure 3 Cross-sectional view of the underwater pulley.

[0020] Figure 7 yes Figure 6 Cross-sectional view of the middle pulley assembly. DETAILED DESCRIPTION

[0021] See attached Figure 1-7 A floating body test system device includes an elevated support platform 1, a traction winch 2, an underwater caisson 3 and a floating body 4. The elevated support platform 1 is installed on the shore or the underwater platform. The traction winch 2 is installed on the elevated support platform 1. The floating body 4 is located on the water surface. The lower end of the floating body 4 is connected to a cable 5. The upper end of the underwater caisson 3 is installed with an underwater pulley 8. The underwater caisson 3 sinks to the bottom of the water. The cable 5 passes through the underwater pulley 8 at the upper end of the underwater caisson 3 and is finally connected to the traction winch 2.

[0022] The underwater caisson 3 includes an upper plate 31, a lower plate 32, through bolts 6, concrete 33, a hanging assembly 7 and an underwater pulley 8. The upper plate 31 and the lower plate 32 are fixedly connected up and down by through bolts 6 with a gap in the middle, in which concrete 33 is poured. Underwater pulleys 8 are respectively installed on both sides of the upper end of the upper plate 31, and hanging assemblies 7 are also designed on both sides of the upper end of the upper plate 31, located inside the underwater pulley 8.

[0023] The hanging assembly 7 comprises an upper clamping plate 71, a lower clamping plate 72, a vertical plate, and a hanging plate 74. Four parallel vertical plates are fixedly designed on the upper clamping plate 71, which are respectively the first vertical plate 731, the second vertical plate 732, the third vertical plate 733 and the fourth vertical plate 734. Two hanging plates 74 are designed, and one hanging plate 74 is vertically fixed between the first vertical plate 731 and the second vertical plate 732, and the other hanging plate 74 is vertically fixed between the third vertical plate 733 and the fourth vertical plate 734. A reinforcing plate 75 is also installed between the second vertical plate 732 and the third vertical plate 733. A hook hole 76 is designed on the upper end of the two hanging plates 74; the upper clamping plate 71 is located above the upper plate 31, and the lower clamping plate 72 is located below the lower plate 32. A number of through bolts 6 are passed through the upper clamping plate 71, the upper plate 31, the concrete 33, the lower plate 32 and the lower clamping plate 72 from top to bottom and are locked and fixed together.

[0024] The upper end of the vertical plate 73 is chamfered; the upper end of the reinforcing plate 75 is designed to be an arc structure.

[0025] The underwater pulley 8 comprises an upper fixed plate 81, a lower fixed plate 82, a support plate 83 and a pulley assembly 9, wherein the upper fixed plate 81 is located above the upper plate 31, and the lower fixed plate 82 is located below the lower plate 32. A plurality of through bolts 6 are passed through the upper fixed plate 81, the upper plate 31, the concrete 33, the lower plate 32 and the lower fixed plate 82 in sequence from top to bottom and are locked and fixed together; the support plate 83 is installed on the upper fixed plate 81 and a space is left between the support plate 83 and the upper fixed plate 81. There is a certain spacing, and the support plate 83 is also penetrated by several through bolts 6 in turn from top to bottom through the support plate 83, the upper fixed plate 81, the upper plate 31, the concrete 33, the lower plate 32 and the lower fixed plate 82 and locked and fixed. A connecting rod 84 is fixedly designed in the middle of the support plate 83, and the lower end of the connecting rod 84 penetrates the support plate 83, the upper fixed plate 81, the upper plate 31, the concrete 33, the lower plate 32 and the lower fixed plate 82 in turn and is locked and fixed. The upper end of the connecting rod 84 is connected to the lower end of the pulley assembly 9.

[0026] The pulley assembly 9 includes a pulley 91, two side plates 92, a connecting block 93, and a spherical pad 94. The pulley 91 is rotatably mounted between the upper ends of the two side plates 92, and the connecting block 93 is installed between the lower ends of the two side plates 92. The lower ends of the two side plates 92 are designed so that the two ends of the connecting block 93 can be rotatably mounted on the side plates on the corresponding sides. A through hole is opened in the middle of the connecting block 93, and the upper end of the through hole is designed as a spherical groove 95, and the lower end of the through hole is designed as a bell mouth 96. The upper end of the connecting rod 84 passes through the through hole and is locked by a nut, and a spherical pad 94 is installed between the lower end of the nut and the connecting block 93, and the spherical pad 94 can be slidably installed in the spherical groove 95. The underwater pulley 8 is installed on the caisson body. Considering the deviation between the caisson position and the winch position, the pulley is designed with a universal structure to adapt to different positions and angles. The connecting block 93 of the underwater pulley 8 and the two side plates 92 can rotate relative to each other. The connecting block 93 can rotate relative to the connecting rod 84 through the design between the spherical pad 94 and the spherical groove and the through hole design. In addition, with the cooperation of the bell-mouth design, the connecting block 93 can be tilted at a certain angle relative to the connecting rod 84 and in any direction around it, ensuring that the cable 5 will not get tangled or stuck when the pulley changes direction to pull the floating body 4.

[0027] The two side plates 92 are fixed by bolts passing through them from left to right, and a hollow cylinder 97 is sleeved on the bolts. The outer sides of the two side plates 92 are also designed with transverse plates 90, which are also located on both sides of the pulley 91. The front ends of the two transverse plates 90 are connected by a rotating shaft 98. The pulley 91 is designed to be a V-shaped guide groove 99 around the periphery, and the hollow cylinder 97 and the rotating shaft 98 are both located outside the V-shaped guide groove of the pulley. The V-shaped guide groove and the hollow cylinder and the rotating shaft structure position design cooperate with each other to prevent the cable 5 from coming out of the V-shaped guide groove, resulting in a stuck problem.

[0028] The lower end of the through bolt 6 extends out of the lower plate 32 by a certain distance to form an anchor rod 61. The through bolt 6 penetrates up and down to play the role of overall fixing, and the formed anchor rod is inserted into the bottom mud to play the role of anti-pulling.

[0029] When the present invention is used:

[0030] First, prepare the test device. Two groups of traction winches 2 are respectively installed on the elevated support platform 1. Two cable 5 connection points are designed at the lower end of the floating body 4. The cables 5 of the two traction winches 2 pass through the pulleys of the two groups of underwater pulleys 8 on the underwater caisson 3 respectively, and finally are fixedly connected to the corresponding cable 5 connection points at the lower end of the floating body 4. The two traction winches 2 release the cables 5 at a uniform speed and transport the floating body 4 and the underwater caisson 3 to the designated place through a transportation tool (ship). The crane hook on the ship is hung on the hook hole of the hanging component 7 of the underwater caisson 3, and the underwater caisson 3 is put into the water. The cable 5 is released to cooperate until the underwater caisson 3 reaches the bottom. At this time, the floating body 4 floats on the water surface and is located above the underwater caisson 3. The cable 5 is towed under the action of the traction winch 2; during the test operation, the two traction winches 2 begin to tighten the cable 5 at a uniform speed, and the direction is changed by the underwater pulley 8. The cable 5 pulls down the floating body 4 from the bottom of the floating body 4 to make the floating body 4 reach the specified depth; the floating body 4 is evenly stressed through the two connection points below, and the cable 5 applies tension vertically at the lower end without tilting. The underwater caisson 3 and the traction winch 2 will not be affected by wind and waves, and swells, so that the data is accurate and safe.

[0031] The traction winch 2 is mainly composed of the frame, drum parts, reducer, motor, brake, clutch device, anti-stall protection device, speed, length and force sensor and other main parts; the frame is welded with low-alloy structural steel, and after welding, stress relief treatment is performed to eliminate welding stress. The shaft seat mounting surfaces at both ends of the drum are finely processed to ensure the flatness and parallelism of the mounting surface. The drum parts are rolled with low-alloy structural steel, with a single drum and single rope, a spiral rope groove, and the end of the wire rope is fixed with a rope pressure plate. Both ends are supported in the shaft seat with spherical roller bearings. The rollers of the spherical roller bearings are in correction line contact with the two rings, with large load-bearing capacity, suitable for working under heavy load or vibration load, and can be used in places where the bearing seat holes at both ends are not easy to ensure strict concentricity. Important connection parts are connected with high-strength bolts to ensure the mechanical strength of the connection. The spiral rope groove on the drum can arrange the wire rope in an orderly manner on the drum. The motor adopts YZP series variable frequency motor, which can be matched with various frequency conversion devices at home and abroad to form an AC variable frequency speed regulation system. It has the characteristics of large overload capacity, high mechanical strength, wide speed regulation range, stable operation, etc. It is suitable for those short-term or intermittent operation, frequent starting and braking, forward and reverse rotation, overload and significant vibration and impact in the variable frequency speed regulation transmission system of hoisting machinery and metallurgical auxiliary machinery equipment. With high-precision sensors, high-precision closed-loop operation can be achieved. The rated voltage of the motor for hoisting and metallurgy is 380V, the frequency conversion range is 3~100Hz, 3~50Hz is constant torque speed regulation, and 50~100Hz is constant power speed regulation. Brake, electric hydraulic block brake The brake is usually installed on the high-speed shaft of the equipment. The brake is mainly composed of a frame, a brake part and a control device. It has reliable performance, stable braking, high action frequency, and has automatic compensation and manual release functions. The clutch device is arranged at the pinion of the output shaft of the reducer. The clutch device is operated by the handle, so that the pinion is disengaged from the large gear and the torque is not transmitted, thereby realizing the free running of the drum to cope with the situation of quickly releasing the cable 5 in an emergency. The anti-stall protection device is installed at the drum brake disc. Its function is that when the cabin section is urgently floated, the manual device is opened, the drum is in a free state, and it is quickly reversed under the buoyancy of the cabin section. When the cabin section floats to the surface of the water, it will produce large fluctuations. At this time, the drum is still rotating due to the inertia force, which is easy to cause tangled ropes. Therefore, a stall protection device is designed to tighten the handle so that the brake belt fits the drum, and the friction force is used to prevent the drum from over-rotating. Speed, length and force measuring device: An encoder is designed at the output shaft end of the drum, which can measure the speed and length of the cable 5 by detecting the rotation of the drum; the shaft seat is equipped with a shaft seat sensor, which can detect all the forces of the drum.

[0032] The electrical control part of traction winch 2 has two control modes: automatic and manual:

[0033] (1) During automatic control, various subroutines are called according to the requirements of different floats 4. Authorized operators can set the parameters of each subroutine after entering the password. The system issues an alarm message when the parameter setting is dangerous; manual control is mainly for maintenance and debugging of equipment when it is operating alone; when switching between automatic control and manual control modes, all conversion switches and buttons must be in zero position.

[0034] (2) The console displays system parameters in real time, such as winch speed, cable 5 speed, float 4 position, and cable 5 traction. For possible emergencies, the control system has an emergency response procedure to protect the entire test system.

[0035] The underwater caisson 3 is made of welded steel structure and poured concrete 33 inside, with a total weight of about 130t, ensuring that the net weight in the water is not less than 80t. An underwater pulley 8 is installed at the upper end to make the cable 5 towed to the floating body 4 after being redirected. The design input distance between the underwater pulleys 8 is 13 meters, so that the cable 5 is directly facing the traction point of the floating body 4. The caisson is designed to be 15 meters long. In order to ensure that the caisson is anti-overturning, the caisson is 3.36 meters wide and 1.3 meters high. Steel bars are extended from the bottom to increase the ground grip.

Claims

1. A floating body test system device, characterized in that: It includes an elevated support platform, a traction winch, an underwater caisson and a floating body. The elevated support platform is installed on the shore or on an underwater platform. The traction winch is installed on the elevated support platform. The floating body is located on the water surface. A cable is connected to the lower end of the floating body. An underwater pulley is installed on the upper end of the underwater caisson. The underwater caisson sinks to the bottom of the water. The cable passes through the underwater pulley at the upper end of the underwater caisson and is finally connected to the traction winch. The underwater caisson includes an upper plate, a lower plate, through bolts, concrete, a hanging assembly and an underwater pulley. The upper plate and the lower plate are fixedly connected up and down by through bolts with a gap in the middle. Concrete is poured in the gap. Underwater pulleys are respectively installed on both sides of the upper end of the upper plate. Both sides of the upper end of the upper plate are located inside the underwater pulley. There is a hanging assembly; the hanging assembly includes an upper splint, a lower splint, a vertical plate, and a hanging plate. Four parallel vertical plates are fixedly designed on the upper splint, which are the first vertical plate, the second vertical plate, the third vertical plate and the fourth vertical plate in sequence. There are two hanging plates, one of which is vertically fixed between the first vertical plate and the second vertical plate, and the other is vertically fixed between the third vertical plate and the fourth vertical plate. A reinforcing plate is also installed between the second vertical plate and the third vertical plate. A hook hole is designed on the upper end of the two hanging plates; the upper splint is located above the upper plate, and the lower splint is located below the lower plate. A number of through bolts are used between the upper splint, the upper plate, the concrete, the lower plate and the lower splint to penetrate the upper splint, the upper plate, the concrete, the lower plate and the lower splint and lock them. The upper end of the vertical plate is chamfered; the upper end of the reinforcing plate is designed to be an arc structure; the underwater pulley comprises an upper fixed plate, a lower fixed plate, a support plate and a pulley assembly, the upper fixed plate is located on the upper plate, the lower fixed plate is located under the lower plate, and a number of through bolts are passed between the upper fixed plate and the lower fixed plate, which penetrate the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in turn and are locked and fixed together; the support plate is installed on the upper fixed plate and a certain distance is left between the support plate and the upper fixed plate. A number of through bolts are also passed around the support plate, which penetrate the support plate, the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in turn and are locked and fixed. A connecting rod is fixedly designed in the middle of the support plate. The lower end of the connecting rod passes through the supporting plate, the upper fixed plate, the upper plate, the concrete, the lower plate and the lower fixed plate in sequence and is locked and fixed, and the upper end of the connecting rod is connected to the lower end of the pulley assembly; the pulley assembly includes a pulley, two side plates, a connecting block, and a spherical pad. A pulley is rotatably installed between the upper ends of the two side plates, a connecting block is installed between the lower ends of the two side plates, and the lower ends of the two side plates are designed so that the two ends of the connecting block can be rotatably installed on the side plates on the corresponding sides. A through hole is opened in the middle of the connecting block, and the upper end of the through hole is designed as a spherical groove, and the lower end of the through hole is designed as a bell mouth. After the upper end of the connecting rod passes through the through hole, it is locked by a nut and a spherical pad is installed between the lower end of the nut and the connecting block, and the spherical pad can be slidably installed in the spherical groove;The two side plates are fixed by bolts passing through them from left to right, and a hollow cylinder is sleeved on the bolts. The outer sides of the two side plates are also designed with cross plates, which are also located on both sides of the pulley. The front ends of the two cross plates are connected by a rotating shaft. The pulley is designed to be a V-shaped guide groove. The hollow cylinder and the rotating shaft are located on the outer side of the V-shaped guide groove of the pulley. The lower end of the through bolt extends out of the lower plate for a certain distance to form an anchor rod.

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