Truss type net cage netting tying stress test measuring device

Abstract

The invention discloses a truss type net cage netting tying stress test measuring device, and belongs to the technical field of netting testing devices. The measuring device comprises a main frame, a netting frame, a tying connector and a test netting, the main frame is a device main body, the height direction and the width direction of the main frame are telescopic so as to meet the arrangement of the test netting with different specifications, and first holes are uniformly arranged in the length direction; the netting frame is connected with the main frame through a first hole in the length direction of the main frame and provides support for the test netting, and the test netting is a test measurement object; the netting frame realizes the adjustment of the arrangement angle by adjusting the position of the first hole connected with the main frame so as to adapt to the stress measurement under different test netting arrangement angles; one end of the tying connector is connected with the test netting, and the other end is connected with the netting frame. According to the device, through the flexibility and adjustability of the structural design, accurate measurement of netting tying stress under the conditions of different specifications, different laying angles and different pretension forces is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of netting test devices, and particularly relates to a truss type net cage netting system force test measuring device. BACKGROUND

[0002] Deep sea aquaculture as an important direction of marine fishery transformation and upgrading, its core is to rely on safe and reliable aquaculture facilities to realize large-scale and sustainable production. Truss type net cage has become the core carrier of deep sea aquaculture facilities due to its high structural strength, large aquaculture space, and adaptation to intelligent and mechanical equipment, and plays a key role in promoting the expansion of marine fishery to deep sea.

[0003] As the core functional component of truss type net cage, netting bears the important role of blocking the escape of cultured objects and resisting external environmental interference (such as water flow and wind wave), and its safety and stability is directly related to the overall operation safety of the aquaculture facility. In practical application, the netting is usually fixed on the truss pipe by lashing, and under the long-term action of external load (such as water flow impact force and the action force of cultured biological cluster), the local limit load may exceed the bearing capacity of the netting, or the netting may be broken due to repeated stress, eventually causing the netting to be damaged, resulting in the escape of cultured objects and the failure of the facility function.

[0004] Accurate assessment of the stress state of the netting lashing part is the prerequisite for optimizing the design of the netting and improving the rationality of the lashing installation, and is also the basis for ensuring the safe operation of the truss type net cage. However, due to the diversity of truss type net cage netting specifications (different sizes, netting density), flexible layout angle (adjusted according to the needs of aquaculture or sea environment), and differences in cable pretension, the existing test device cannot meet the stress measurement needs under diversified conditions, or can only adapt to a single specification of netting, or cannot simulate the stress state under different layout angles, or lacks precise control ability of pretension. At present, there is no special test measuring device for truss type net cage netting lashing force in the industry, which leads to insufficient accuracy of netting stress evaluation and restricts the design optimization and safety protection of large truss type net cage netting system.

[0005] Therefore, the present application provides a truss type net cage netting lashing force test measuring device to solve the above technical problems. SUMMARY

[0006] The present application aims to provide a truss type net cage netting lashing force test measuring device, which realizes precise measurement of netting lashing force under different specifications, different layout angles, and different pretension conditions through the flexibility and adjustability of structural design, and provides test support for safety evaluation and optimization design of truss type net cage netting system.

[0007] The present application provides a kind of truss type net cage netting system force test measuring device, comprising: Main frame, the main frame is the main body of device, its height direction and width direction can be telescopic, to meet the layout of different specifications and sizes test netting, length direction has the first hole of uniform arrangement; Netting frame, the netting frame is connected with the main frame through the first hole of the length direction of main frame, and provides support for test netting, and the test netting is the test measurement object;The netting frame is adjusted by the position of the first hole connected with the main frame, to realize the adjustment of arrangement angle, to adapt to the force measurement under different test netting arrangement angle; System connection connector, one end of the system connection connector is connected with test netting, and the other end is connected with the netting frame.

[0008] As preferred, the main frame includes length direction support rod, width direction support rod, height direction support rod and bottom support seat;The length direction support rod has the first hole of uniform distribution, which is used for being connected with the netting frame;The width direction support rod and the height direction support rod can be telescopic, to adapt to different specifications of test netning;The bottom support seat is used for stabilizing the main frame.

[0009] As preferred, the netting frame includes frame transverse rod and frame vertical rod;The frame transverse rod is two, and the frame vertical rod is two;The frame transverse rod and the frame vertical rod are axially provided with the second hole of uniform distribution; The second hole of the side of frame transverse rod is connected with the end hole of frame vertical rod through bolt connection, and the second hole of the side of frame vertical rod is connected with the first hole of length direction support rod through bolt connection.

[0010] As preferred, the system connection connector includes universal joint and threaded lifting ring, the universal joint is detachably connected with the netting frame, and the threaded lifting ring is detachably connected with the cable of test netting, The universal joint is used to ensure that the cable force of test netting and test netting are in the same plane under different test states;The threaded lifting ring is set by adjusting screw to realize different system pre-tension setting of test netting.

[0011] As preferred, the number of system connection connector can be configured according to the number of cable arrangement of test netting, to adapt to the force measurement of netting system of different cable arrangement.

[0012] As preferred, the material of frame transverse rod and frame vertical rod is high-strength metal, to ensure the support strength of netting frame.

[0013] The present application has the following beneficial effects: The force test measuring device of the truss type net cage netting system of the application can meet the force test measurement of the truss type net cage netting system under different specifications, different layout angles and different pre-tensions, and specifically comprises: (1) Multiple compatible netting specifications: the width direction support rod and the height direction support rod of the main frame are designed as telescopic structures, which can flexibly adjust the length, width and height of the main frame according to the size specifications of different test nettings, and then adapt to the layout requirements of test nettings with different widths and heights. Whether it is a small test netting or a large practical application netting, it can be stably installed on the device, greatly expanding the test application range and avoiding the problem that the test cannot be carried out due to the limitation of netting specifications.

[0014] (2) Layout angle adjustment: by setting uniformly distributed holes on the length direction support rod of the main frame and the frame horizontal rod and the frame vertical rod of the netting frame, and using bolts to connect the holes at different positions, the relative angle between the netting frame and the main frame can be accurately adjusted. This design can simulate the complex layout angles of the test netting in actual use, such as the inclination angle under different water flow directions and different terrain conditions in the breeding area, so that the test is more in line with the actual working conditions, ensuring the authenticity and effectiveness of the test data, and providing strong support for in-depth research on the influence of different layout angles on the force of the netting system.

[0015] (3) Precise control of cable pre-tension: the threaded eye of the system connector can adjust the extension length by rotating, so as to accurately set the pre-tension of the test netting cable. In actual application, the pre-tension of the netting cable is different due to installation technology, use environment and other factors. The device can simulate such differences to meet the force test requirements under different pre-tension conditions, which is helpful for in-depth analysis of the influence of pre-tension on the stability of the netting system and provides a scientific basis for optimizing the installation technology of the netting. BRIEF DESCRIPTION OF DRAWINGS

[0016] For easy description, the application is described in detail by the following specific implementation and drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the test device of the application; Figure 2 It is a schematic diagram of the main frame structure of the test device of the application; Figure 3 It is a schematic diagram of the netting frame structure of the test device of the application; Figure 4 It is a schematic diagram of the system connector structure of the test device of the application.

[0018] In the figure: 1-main frame; 101-length direction support rod; 102-width direction support rod; 103-height direction support rod; 104-bottom support base; 105-first hole; 2-net frame; 201-frame horizontal rod; 202-frame vertical rod; 203-second hole; 3-harness connector; 301-universal joint; 302-threaded eye; 4-test net. DETAILED DESCRIPTION

[0019] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments; in the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted.

[0020] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0021] As shown in Figure 1 , a kind of truss netting harness force test measuring device provided by the application, including: main frame 1, net frame 2, harness connector 3 and test net 4;Wherein, main frame 1 is the main support structure of device, net frame 2 is fixed and angle adjustment is realized by main frame 1, harness connector 3 is used to connect test net 4 with net frame 2, test net 4 is the object of test measurement.

[0022] As shown in Figure 2 , main frame 1 includes length direction support rod 101, width direction support rod 102, height direction support rod 103 and bottom support base 104;Length direction support rod 101 extends along the length direction of device, its surface is provided with the first hole 105 of uniform distribution, is used to be detachably connected with net frame 2 by bolt;By selecting the first hole 105 of different position, the connecting point of net frame 2 and main frame 1 can be adjusted, and then the angle adjustment of net frame 2 layout is realized.Width direction support rod 102 and height direction support rod 103 are all used telescopic structure, such as nested sleeve cooperation positioning pin, the width and height size of main frame 1 can be changed by adjusting telescopic length, to adapt to the layout demand of test net 4 of different specifications (such as different width, height).Bottom support base 104 is fixed to the bottom of main frame 1, adopts steel plate welding structure, increases the contact area with ground, ensures that the device remains stable during the test process, avoids the shaking caused by the force of test net 4.

[0023] As shown in Figure 3As shown, the net frame 2 includes frame transverse rods 201 and frame vertical rods 202, both of which are made of high-strength metal material (such as stainless steel) to ensure the support strength of the net frame 2 and to achieve stable support of the test net 4. The frame transverse rods 201 are two rods arranged in parallel from top to bottom, and the frame vertical rods 202 are two rods arranged in parallel from left to right, which together form a rectangular frame structure; the frame transverse rods 201 and the frame vertical rods 202 are uniformly provided with second holes 203 in the axial direction. The second holes 203 on the side surface of the frame transverse rods 201 are connected with the end openings of the frame vertical rods 202 through bolts to realize the overall assembly of the net frame 2; the second holes 203 on the side surface of the frame vertical rods 202 are connected with the first holes 105 of the length direction support rods 101 in the main frame 1 through bolts to realize the fixation of the net frame 2 and the main frame 1.

[0024] By adjusting the connection hole positions (i.e. selecting different first holes 105) of the frame vertical rods 202 and the length direction support rods 101, the relative angle of the net frame 2 and the main frame 1 can be changed, so as to simulate the stress state of the test net 4 under different layout angles.

[0025] As shown in Figure 4 The connection of the test net 4 and the net frame 2 is realized through the flexible connection of the universal joint 301 and the threaded eye 302. One end of the universal joint 301 is detachably connected with the second hole 203 of the net frame 2, and the other end is detachably connected with the threaded eye 302, which can rotate by 360° to ensure that the tension direction of the test net 4 is consistent with the plane of the test net 4 under different stress states, thereby avoiding measurement errors caused by angle deviation. The threaded eye 302 is a threaded eye structure, one end of which is hooked with the universal joint 301, and the other end is hooked with the cable of the test net 4; by rotating the threaded eye 302, the extension length thereof can be changed, and thus the pretension of the cable of the test net 4 can be adjusted to meet the stress test requirements under different pretensions. The number of the connection of the test net 4 and the net frame 2 is flexibly configured according to the number of the cable arrangement of the test net 4, and the second holes 203 at different positions of the net frame 2 are selected for installation to adapt to the connection stress measurement of the test net 4 with different cable distribution forms.

[0026] The working process of the truss type net cage net connection stress test measurement device is as follows: When different specifications of the test net 4 need to be tested, the extension lengths of the width direction support rods 102 and the height direction support rods 103 of the main frame 1 are adjusted to change the width and height of the main frame 1, so that the size of the net frame 2 matches the test net 4.

[0027] When it is necessary to test the test netting 4 at different deployment angles, the tilt angle of the netting frame 2 is changed by adjusting the position of the first hole 105 connecting the netting frame 2 and the main frame 1. Combined with the rotation function of the universal joint 301, the test netting 4 is ensured to be stably stressed at a preset angle.

[0028] When it is necessary to test the test net 4 with different pretensions, the pretension of the rope can be adjusted by rotating the threaded lifting ring 302 of the coupling connector 3 to achieve precise control of the pretension.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A device for testing and measuring the stress on the mesh covering of truss-type cages, characterized in that, include: The main frame (1) is the main body of the device. Its height and width directions are retractable to meet the requirements of different sizes of test nets (4). The length direction has uniformly arranged first holes (105). The mesh frame (2) is connected to the main frame (1) through the first hole (105) in the length direction of the main frame (1) to provide support for the test mesh (4), which is the test measurement object; the mesh frame (2) can adjust the arrangement angle by adjusting the position of the first hole (105) connected to the main frame (1) to adapt to the force measurement under different test mesh (4) arrangement angles; The tether connector (3) is connected to the test mesh (4) at one end and to the mesh frame (2) at the other end.

2. The stress testing and measurement device for truss-type wire mesh cages according to claim 1, characterized in that, The main frame (1) includes a length direction support rod (101), a width direction support rod (102), a height direction support rod (103), and a bottom support base (104); the length direction support rod (101) has evenly distributed first holes (105) for connecting with the mesh frame (2); the width direction support rod (102) and the height direction support rod (103) are telescopic to adapt to test mesh of different specifications; the bottom support base (104) is used to stabilize the main frame (1).

3. A test and measurement device for the stress distribution of truss-type wire mesh cages according to claim 1 or 2, characterized in that, The mesh frame (2) includes a frame horizontal rod (201) and a frame vertical rod (202); the frame horizontal rod (201) consists of two rods, one at the top and one at the bottom, and the frame vertical rod (202) consists of two rods, one on the left and one on the right. Both the frame horizontal rod (201) and the frame vertical rod (202) have evenly distributed second holes (203) in their axial directions. The second hole (203) on the side of the transverse rod (201) of the frame is connected to the end opening of the vertical rod (202) of the frame by bolts, and the second hole (203) on the side of the vertical rod (202) of the frame is connected to the first hole (105) of the support rod (101) in the length direction by bolts.

4. The stress testing and measurement device for truss-type wire mesh cages according to claim 1, characterized in that, The fitting connector (3) includes a universal joint (301) and a threaded eye (302). The universal joint (301) is detachably connected to the mesh frame (2), and the threaded eye (302) is detachably connected to the rope of the test mesh (4). The universal joint (301) is used to ensure that the force on the test netting (4) and the test netting (4) are on the same plane under different test conditions; the threaded eye (302) can set different pretension of the test netting (4) by adjusting the thread.

5. The stress testing and measurement device for truss-type wire mesh cages according to claim 1, characterized in that, The number of the tying connectors (3) can be configured according to the number of ropes arranged in the test netting (4) to adapt to the force measurement of the netting with different rope arrangements.

6. The stress testing and measurement device for truss-type wire mesh cages according to claim 3, characterized in that, The horizontal bars (201) and vertical bars (202) of the frame are made of high-strength metal to ensure the support strength of the mesh frame (2).

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