Underwater collision test device and test method

Abstract

The invention discloses an underwater collision test device and method in the field of hydraulic structures. The device comprises a water tank, and a sliding rail assembly is detachably installed on the water tank through a fixing clamp; the sliding rail assembly is installed on the water tank, the collision assembly is installed on the sliding rail assembly, the collision assembly is partially arranged in the water tank, the driving piece is connected with the collision assembly, a pressure sensor is fixed to the inner wall of the water tank, and the driving piece drives the collision assembly to move and make contact with the pressure sensor; the sliding rail assembly is detachably installed on the water tank through the fixing clamp, the sliding rail assembly is connected with the collision assembly, the collision assembly is separated from the water tank while the sliding rail assembly is disassembled, the water tank is used as an installation body, the device universality and structural characteristics of the concrete water tank are utilized, rapid installation of the whole device is achieved, and the whole device is put into a test; the device is small in occupied area and meets test requirements.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic structures, and particularly relates to an underwater collision test device and a test method. Background Art

[0002] Most of the existing small traction type directional collision devices are based on the air environment, mainly aiming at the collision problems of large-sized ship models, and it is difficult to meet the collision test requirements of small underwater equipment. Moreover, the underwater collision test device has a high degree of customization according to the size and function of the collision object, the transmission device occupies a large area, the test site requires a large area, and the collision object has a large size, making it difficult to achieve rapid installation and disassembly. Summary of the Invention

[0003] The purpose of this application is to provide an underwater collision test device, which makes full use of the universality and structural characteristics of the concrete water tank, and realizes the test requirements of traction type underwater constant speed and directional counterweight collision through rapid installation and disassembly of a small concrete water tank.

[0004] To achieve the above purpose, the following technical solutions are adopted in this application: In the first aspect, this application discloses an underwater collision test device, which includes A water tank, on which a slide rail assembly is detachably installed through a fixing clamp; A collision assembly, which is installed on the slide rail assembly, and a part of the collision assembly is placed in the water tank, A driving member, which is connected to the collision assembly, and a pressure sensor is fixed on the inner wall of the water tank, and the driving member drives the collision assembly to move and contact the pressure sensor.

[0005] A further solution of this application is that the slide rail assembly includes a transmission slide rail and a slider, the slider is movably arranged on the transmission slide rail, the collision assembly is fixedly connected to the slider, and the transmission slide rail is installed on the side surface of the water tank through a fixing clamp.

[0006] A further solution of this application is that there are two groups of the slide rail assemblies, and the distance between the two groups of the slide rail assemblies is adjustable. The fixing clamp includes an arch-shaped mounting member and a screw. The arch-shaped mounting member is fixedly connected to the slide rail assembly, and the screw is spirally installed on both sides of the arch-shaped mounting member, and the screw rotates to abut against the inner wall of the water tank.

[0007] A further solution is that the collision assembly includes a traction frame and a bearing frame. The traction frame is fixed on the slider, the bearing frame is connected to the traction frame through a suspension rope, and a bearing housing is fixed on the side of the bearing frame facing the pressure sensor.

[0008] In a further solution, a plurality of counterweight weights can be fixed inside the carrier.

[0009] In a further solution of the present application, the installation coordinates of the pressure sensor are adjustable. A fixing frame is provided in the water tank. The fixing frame includes two sets of longitudinal telescopic members and two sets of transverse telescopic members. The two sets of transverse telescopic members are fixed between the two sets of longitudinal telescopic members, and the pressure sensor is fixed on any one set of transverse telescopic members.

[0010] In a further solution of the present application, the driving member is a winch, and the towing hook of the winch is connected to the collision assembly.

[0011] In a further solution of the present application, it further includes an industrial camera and a control center. The control center is electrically connected to the industrial camera, the driving member, and the pressure sensor.

[0012] In a second aspect, the present application discloses a testing method based on the above underwater collision test device, which includes the following steps: Fix the slide rail assembly parallel to the side of the water tank. Fix the workpiece to be tested on the side of the collision assembly facing the pressure sensor, and fill the water tank with test water. The water level of the test water submerges the workpiece to be tested. Start the driving member to drive the collision assembly to move towards the pressure sensor until the workpiece to be tested collides with the pressure sensor; wherein the driving speed of the driving member and the counterweight mass in the collision assembly are adjustable, and the test parameters are changed to conduct tests under different working conditions.

[0013] The beneficial effects of the present application are as follows: In the present application, the slide rail assembly is detachably installed on the water tank through a fixing clip. The slide rail assembly is connected to the collision assembly. When the slide rail assembly is disassembled, the collision assembly is separated from the water tank. Using the water tank as an installation body reduces the installation space. Utilizing the universality and structural characteristics of the water tank device, the rapid installation of the entire device and its input into the test are realized. The device occupies a small area and meets the test requirements.

[0014] Among them, the distance between the transmission slide rails can be adjusted to adapt to the use of traction frames of different lengths. By adjusting the structure of the fixing frame, the position of the pressure sensor is changed. The device comprehensively enhances the mobility and practical applicability of the test and meets the requirements of tests in different situations. Description of the Drawings

[0015] Figure 1 It is a top view schematic diagram of the overall layout of the test device in the embodiment of the present application Figure 2 It is a side view sectional schematic diagram of the test device in the embodiment of the present application; Figure 3Schematic structural diagram of the fixing frame in the embodiment of the present application; Figure 4 Schematic diagram of one side of the bearing frame in the embodiment of the present application; Figure 5 Schematic structural diagram of the traction frame in the embodiment of the present application; Figure 6 Schematic structural diagram of the bearing housing in the embodiment of the present application; Figure 7 Schematic flow diagram of the test method in the embodiment of the present application.

[0016] Wherein: 1. Water tank; 2. Transmission slide rail; 3. Fixed clamp; 4. Traction frame; 5. Traction rope; 6. Driving member; 7. Pulley; 8. Fixing frame; 9. Pressure sensor; 10. Suspension rope; 11. Bearing frame; 12. Bearing housing; 13. Counterweight; 81. Installation rod; 82. Insertion rod; 83. Transverse telescopic member; 84. Longitudinal telescopic member; 85. Locking screw. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use.

[0018] As Figure 1 and Figure 2 shown, this embodiment discloses an underwater collision test device, which includes a water tank 1, a collision assembly, and a driving member 6. A slide rail assembly is detachably installed on the water tank 1 through a fixed clamp 3; the collision assembly is installed on the slide rail assembly, and the collision assembly can move along the length direction of the slide rail assembly. Part of the collision assembly is placed in the water tank 1. During the test, water is filled into the water tank 1, and the water level height is controlled according to the test requirements. The driving member 6 is connected to the collision assembly. Among them, a pressure sensor 9 is fixed on the inner wall of the water tank 1, and the driving member 6 drives the collision assembly to move and contact the pressure sensor 9.

[0019] Continuing to observe the attached Figure 1 , the slide rail assembly in this embodiment includes a transmission slide rail 2 and a slider. The slider is movably installed on the transmission slide rail 2. During installation here, two sliders are assembled on each transmission slide rail 2. The slider is connected to the slide rail by free fall connection to reduce friction. The collision assembly is fixedly connected to the slider, and the transmission slide rail 2 is installed on the side surface of the water tank 1 through a fixed clamp 3; the transmission slide rail 2 is arranged along the length direction of the side surface of the water tank 1. Usually, the water tank 1 is a cuboid, and two transmission slide rails 2 are installed oppositely on the water tank 1 to support the sliding collision assembly.

[0020] In some embodiments, the distance between the two sets of slide rail assemblies can be adjusted, and the adjustment range is within the thickness range of the tank wall of the sink 1. The fixing clip 3 consists of an arched mounting piece and two screws. The arched mounting piece is fixedly connected to the transmission slide rail through a bolt. Each screw spirally passes through the corresponding two sides of the arched mounting piece, and the arched mounting piece is placed on the tank wall of the sink 1. The two sides of the arched mounting piece are arranged downward. By rotating the screws, the screws abut against the tank wall of the sink 1, and the transmission slide rail can be firmly fixed. This technical solution design can quickly realize the fixing and disassembly of the transmission slide rail 2. At the same time, when adjusting the distance between the two transmission slide rails 2, only need to rotate the screws to adjust the distance between the two sides of the arched mounting piece and the tank wall. The adjustment method is simple and convenient, and different lengths of collision components can be quickly switched for use.

[0021] As shown in the attached Figure 2 and Figure 3 figures, in this embodiment, the collision component includes a traction frame 4 and a bearing frame 11. The traction frame 4 is fixed on the slider, and the bearing frame 11 is connected to the traction frame 4 through four suspension ropes 10. A bearing housing 12 is fixed on one side of the bearing frame 11 facing the pressure sensor 9. In actual production, the bearing frame 11 is a frame structure. Threaded holes are opened in the bearing housing 12, and the workpiece to be tested is fixed on the surface of the bearing housing 12 through bolts for relevant underwater collision tests. The distance between the two transmission slide rails 2 is adjusted by the length of the traction frame 4. Under normal circumstances, some counterweight pieces need to be fixed inside the bearing frame 11. In actual production, the counterweight weights 13 are assembled to the bearing frame 11 through the weight assembly fixing belt.

[0022] As shown in the attached Figure 2 and 4 figures, the rear cross structure of the bearing frame 11 in this embodiment is a rear limiting tube, and the bottom cross structure is a bottom cross limiting tube. They form an installation space in the middle for assembling the limiting bearing counterweight weights 13. The number and weight of the bearing counterweight weights 13 are set in various ways to meet the needs of the test; observing the attached Figure 5 figure, the two short longitudinal beams in the middle of the traction frame 4 are assembly beams, and the two long cross beams are support beams. The 4 intersection points are used to fix the 4 suspension ropes 10. It should be noted that the two support beams are arranged in parallel and symmetrically between the two assembly beams, so that the entire traction frame 4 is relatively balanced under longitudinal force. Figure 6 In the figure, the 4 vertex inlaid openings (top holes) of the bearing housing are used to ensure the flatness of the outside of the housing. When actually fixing, rivets or screws can be used to fix the bearing housing 4 flat on the side of the bearing frame 11. The middle opening (inner hole) of the bearing housing 4 is used to assemble the workpiece to be tested. The flat bearing housing 4 provides a basis for accurate tests and ensures the accuracy of test data.

[0023] In this embodiment, a winch is used as the driving member 6. The winch is fixed outside the water tank 1, and the towing hook of the winch is connected to the towing frame 4. To facilitate the connection between the towing hook and the towing frame 4, a towing rope 5 is fixed on the towing frame 4, and the towing hook is directly hung on the towing rope 5. It is securely installed and easy to use. Here, the towing rope 5 is made of steel wire rope to ensure the use strength. During the collision test, there is a certain distance between the bearing housing 12 and the pressure sensor 9. The winch is used to pull the bearing housing 12 through the winch rope. To ensure the stable movement of the winch rope, appropriate pulleys 7 are installed on the wall of the water tank 1, and the winch rope needs to be guided and limited by the pulleys 7 when moving.

[0024] In another embodiment, as shown in the appendix Figure 3 The installation coordinates (position) of the pressure sensor 9 can be adjusted. A fixing frame 8 is provided in the water tank 1. The fixing frame 8 includes two sets of longitudinal telescopic members 84 and two sets of transverse telescopic members 83. The two sets of transverse telescopic members 83 are fixedly arranged in parallel between the two sets of longitudinal telescopic members 84. The pressure sensor 9 is fixed on the lower transverse telescopic member 83. The transverse telescopic member 83 includes an installation rod 81 and an insertion rod 82. The insertion rod 82 is movably inserted into the cavity of the installation rod 81, and the two can move freely to achieve telescoping. The pressure sensor 9 is fixed on the surface of the installation rod 81. The installation rod 81 is threadedly assembled with a locking screw 85. After adjusting the relative positions of the installation rod 81 and the insertion rod 82, the locking screw 85 is rotated to squeeze and fix the two. Similarly, the structure of the longitudinal telescopic member 84 is the same as that of the transverse telescopic member 83, except for the installation positions; by adjusting (deforming) the transverse telescopic member 83 and the longitudinal telescopic member 84, the position of the pressure sensor 9 can be changed to meet the requirements of different tests. The adjustment is convenient, and the structural setting also ensures the accuracy of the position adjustment; to a certain extent, it ensures the reliability of the test.

[0025] During the test, in another embodiment, a test method is disclosed. As shown in the appendix Figure 7 The slide rail assembly is fixedly arranged in parallel on the side of the water tank 1; the workpiece to be tested is fixed on the side of the collision assembly facing the pressure sensor 9, and the test water is filled into the water tank 1. The water level of the test water submerges the workpiece to be tested; the driving member 6 is started to drive the collision assembly to move towards the pressure sensor 9 until the workpiece to be tested collides with the pressure sensor 9; the driving speed of the driving member 6 and the weight mass in the collision assembly are adjustable, and the test parameters are changed to conduct tests under different working conditions.

[0026] In actual production, an industrial camera can be installed in the water tank 1, which is aligned with the pressure sensor 9 for video recording. The driving member 6, the pressure sensor 9, and the industrial camera are connected to the control center (computer) through cables. At this time, the workpiece to be tested is fixed on the bearing housing 12, and the position of the pressure sensor 9 and the initial position of the workpiece to be tested are adjusted. In this embodiment, the selected winch can achieve the switching of traction speeds of 0.25 m / s and 0.5 m / s. The bearing frame 11 can achieve the collision working conditions of no counterweight, 25 kg counterweight, 50 kg counterweight, 75 kg counterweight, and 100 kg counterweight. The driving member 6 is started to pull the traction frame 4 to move, so that the workpiece to be tested collides with the pressure sensor 9. The state of the test is recorded by the industrial camera. By changing the counterweight and other operations, the tests under different working conditions are realized, and the test data is connected to the control center for analysis and storage.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0028] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

Claims

1. An underwater collision test device, characterized in that: include A water tank (1), wherein a slide rail assembly is detachably mounted on the water tank (1) via a fixing clip (3); A collision assembly, the collision assembly being mounted on the slide rail assembly, and the collision assembly being partially placed in the water tank (1). A driving member (6), the driving member (6) being connected to the collision assembly, wherein a pressure sensor (9) is fixed on the inner wall of the water tank (1), and the driving member (6) drives the collision assembly to move and contact the pressure sensor (9).

2. The underwater collision test device according to claim 1, characterized in that: The slide rail assembly comprises a transmission slide rail (2) and a slider, the slider being movably arranged on the transmission slide rail (2), the collision assembly being fixedly connected to the slider, and the transmission slide rail (2) being mounted on the side surface of the water tank (1) via a fixing clamp (3).

3. The underwater collision test device according to claim 1, characterized in that: The slide rail assembly comprises two groups, and the distance between the two groups of slide rail assemblies is adjustable. The fixing clamp (3) comprises a bow-shaped mounting member and a screw. The bow-shaped mounting member is fixedly connected to the slide rail assembly, and the screw is spirally mounted on two sides of the bow-shaped mounting member. The screw is rotated to abut against the wall of the water tank (1).

4. The underwater collision test device according to claim 2, characterized in that: The collision assembly comprises a traction frame (4) and a bearing frame (11); the traction frame (4) is fixed on the slider; the bearing frame (11) is connected to the traction frame (4) via a suspension rope (10); and a bearing shell (12) is fixed on a side of the bearing frame (11) facing the pressure sensor (9).

5. The underwater collision test device according to claim 4, characterized in that: A plurality of counterweights (13) can be fixed in the carrier frame (11).

6. The underwater collision test device according to claim 1, characterized in that: The installation coordinates of the pressure sensor (9) are adjustable. A fixing frame (8) is provided in the water tank (1). The fixing frame (8) comprises two groups of longitudinal telescopic members (84) and two groups of transverse telescopic members (83). The two groups of transverse telescopic members (83) are fixed between the two groups of longitudinal telescopic members (84). The pressure sensor (9) is fixed on any one group of transverse telescopic members (83).

7. The underwater collision test device according to claim 1, characterized in that: The driving member (6) is a winch, and the traction hook of the winch is connected to the collision component.

8. The underwater collision test device according to claim 1, characterized in that: It also includes an industrial camera and a control center, wherein the control center is electrically connected to the industrial camera, the driving component (6) and the pressure sensor (9).

9. A testing method based on the underwater collision test device according to any one of claims 1 to 8, characterized in that: include Fixing the slide rail assembly parallel to the edge of the water tank (1); The workpiece to be tested is fixed on the side of the collision assembly facing the pressure sensor (9), and the water tank (1) is filled with test water, the water level of the test water submerging the workpiece to be tested; The driving member (6) is started to drive the collision assembly to move toward the pressure sensor (9) until the workpiece to be tested collides with the pressure sensor (9); wherein the driving speed of the driving member (6) and the mass of the counterweight in the collision assembly are adjustable, and the test parameters are changed to conduct tests under different working conditions.

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