CN218496582U

CN218496582U - Large-span flexible trash rack cable axial force test device

Info

Publication number: CN218496582U
Application number: CN202222161215.4U
Authority: CN
Inventors: 孙运佳; 杨在涛; 丁广佳; 佟德胜; 吕迎雪; 李琛
Original assignee: CCCC First Harbor Engineering Co Ltd; Tianjin Port Engineering Institute Ltd of CCCC Frst Harbor Engineering Co Ltd; Tianjin Harbor Engineering Quality Inspection Center Co Ltd
Current assignee: CCCC First Harbor Engineering Co Ltd; Tianjin Port Engineering Institute Ltd of CCCC Frst Harbor Engineering Co Ltd; Tianjin Harbor Engineering Quality Inspection Center Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-02-17
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a flexible trash rack cable axial force test device of large-span, this test device install on the anchoring basis, the anchoring basis is installed on experimental breakwater model, the upper surface of anchoring basis is the horizontal reference surface, surface mounting has the pulling force collection system on the anchoring basis, the pulling force collection system includes the connecting substrate, and the connecting substrate passes through fastener fixed mounting on the upper surface of anchoring basis, and the central point of connecting substrate puts the vertical flexible scale that installs, and flexible scale includes fixed ruler and the movable ruler that relative fixed ruler can stretch out and draw back from top to bottom, the side of movable ruler is installed the universal joint perpendicularly, the universal joint is connected S type digital display electronic tensiometer one end; the other end locking member of the S-shaped electronic tension meter is connected with a main cable of the flexible trash rack. The utility model discloses can accurately gather the true change of main push-towing rope power, and to the strong adaptability of different experimental operating modes, the simple operation can greatly improve experimental efficiency and accuracy.

Description

Large-span flexible trash rack cable axial force test device

Technical Field

The utility model belongs to the technical field of the hydraulic model test, a flexible trash rack cable axial force test device of large-span is related to.

Background

In ship mooring and trash rack model tests, the problem of testing the stress of a flexible cable structure is faced, and particularly the axial force of a large-span (more than 100 m) flexible trash rack cable is tested; the traditional testing method mainly tests the initial axial force of the mooring rope after the fixed tension meter is used, on one hand, in the continuous deformation process of the mooring rope, the axial force is not accurate due to the continuous change of the axial direction, and on the other hand, when the height test of different mooring rope points is carried out, the time and the labor are wasted due to the fact that the height of the fixed tension meter base needs to be adjusted, and the adaptability of the mooring rope force test is poor. Especially in the trash rack physical model test, the trash rack is mainly dragged by the cable in the axial direction, the cable force and the direction are changed at any time under the action of different water levels, waves and water flows, and the real-time change of the main cable force cannot be accurately acquired by adopting a traditional fixed tension meter measuring mode.

The utility model discloses an improve the S type and draw (press) force meter' S measuring method (or device) (utility model is with the method, utility model is with the device), can accurately gather the true change of main push-towing rope power, and to the strong adaptability of different experimental operating modes, the simple operation can greatly improve experimental efficiency and accuracy.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a simple structure, convenient to use alright really change with accurate main push-towing rope power of gathering, and the practicality is strong, improve the flexible trash rack cable axial force test device of large-span of experimental efficiency and accuracy.

The utility model discloses a realize like this, a flexible trash rack cable axial force test device of large-span, this test device installs on the anchoring basis, the anchoring basis is installed on experimental breakwater model, the upper surface of anchoring basis is the horizontal reference surface, surface mounting has the pulling force collection system on the anchoring basis, its characterized in that, the pulling force collection system includes the connecting substrate, the connecting substrate passes through fastener fixed mounting at the upper surface of anchoring basis, the central point of connecting substrate puts vertical flexible scale of installing, flexible scale includes fixed ruler and the movable ruler that relative fixed ruler can stretch out and draw back from top to bottom, the side of movable ruler is installed the universal joint perpendicularly, the universal joint connects S type digital display electronic tensiometer one end; the other end of the S-shaped electronic tension meter is provided with a cable hole, a locking member is arranged on the S-shaped electronic tension meter on the side of the cable hole, and the locking member fixes a main cable of the flexible trash rack.

Preferably, a horizontal bubble is installed on the upper surface of the connection substrate.

Preferably, a feeler gauge or an adjusting shim is arranged between the connecting substrate and the anchoring base.

Preferably, the locking member comprises a flat head bolt and a locking sleeve fixedly mounted on the S-shaped electronic tensiometer, the locking sleeve is of a hollow structure, and the locking sleeve and the cable hole are located on the same axis.

The utility model discloses an advantage and technological effect: because the utility model adopts the above technical scheme, the utility model has the advantages of it is following:

1. the utility model can accurately simulate the position of the mooring rope point, accurately control the position of the mooring rope, and ensure that the model is consistent with the actual model;

2. the utility model has strong adaptability, and can be suitable for testing various cables, including underwater cable testing, multi-movement cable testing and other types;

3. the force measuring direction of the utility model can be ensured to be consistent with the rope cable direction at any time, the direction has no deviation, and the real characteristic of the main cable force is ensured to be obtained;

4. the device of the utility model has strong adaptability to the measuring environment, simple operation during measurement, reduced labor intensity and improved experimental efficiency;

additionally, the utility model discloses implement convenience, good reliability, measurement of efficiency height, data are accurate reliable, can provide technical support for inland river and coastal power plant, harbour engineering design and scientific research.

Drawings

FIG. 1 is a front view of an overall installation structure of a trash rack;

FIG. 2 is a top view of the overall structure for installing the trash rack;

FIG. 3 is a schematic view of the installation structure of the tension collecting device;

fig. 4 is a schematic view of a lock member mounting structure.

In the figure: 1. a cable; 2. underwater anchor blocks; 3. a tension force collecting device; 301. connecting the substrates; 302. a gasket; 303. a fastener; 304. leveling the air bubbles; 305. a telescopic scale; 306. a universal joint; 307. collecting an instrument; 308. a locking member mounting structure; 30801. recording the S-shaped tension; 30802. a cable hole; 30803. a flat head bolt; 30803. a locking sleeve; 4. a breakwater; 5. a trash rack; 6. a float bowl; 7. and (6) anchoring the foundation.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, a large-span flexible trash rack cable axial force test device is mounted on an anchoring foundation 7, the anchoring foundation is mounted on a test breakwater model 4, the upper surface of the anchoring foundation is a horizontal reference surface, a tension collecting device 3 is mounted on the upper surface of the anchoring foundation, the device can be mounted on one breakwater or two opposite breakwaters during actual use, the device is connected with a main cable 1 of a trash rack 5, the tension collecting device 3 comprises a connecting base plate 301, the connecting base plate is fixedly mounted on the upper surface of the anchoring foundation through a fastener 303, the fastener is generally fixedly connected with the anchoring foundation through a bolt member, a telescopic scale 305 is vertically mounted at the center of the connecting base plate, and the telescopic scale can accurately control the vertical position of a cable tying point of the cable during an experiment, so as to ensure that the model is consistent with the actual situation; the side surface of the telescopic ruler is vertically provided with a universal joint 306, and the universal joint is connected with one end of an S-shaped digital display electronic tension meter 30801; the other end of the S-shaped electronic tension meter is provided with a cable hole 30802, a locking member 30803 is arranged on the S-shaped electronic tension meter on the cable hole side, and the locking member 30803 fixes the flexible trash rack main cable 1.

Preferably, horizontal bubbles are arranged on the upper surface of the connecting substrate and used for installing the connecting substrate, and the horizontal bubbles can be used for quickly leveling, so that the assembly efficiency is improved.

Preferably, a feeler gauge or an adjusting shim is arranged between the connecting substrate and the anchoring foundation and used for finely adjusting the horizontal state of the connecting substrate, so that the accuracy and the reliability of data are improved.

Preferably, the locking member comprises a flat head bolt 30803 and a locking sleeve 30804 fixedly mounted on the S-shaped electronic tension meter, the locking sleeve is of a hollow structure, and the locking sleeve and the cable hole are positioned on the same axis; the flat-head bolt is unscrewed, so that the cable can freely stretch out and draw back in the cable hole and the locking sleeve, and the flat-head bolt is screwed tightly to achieve the function of fixing the cable. This technical scheme can the rate of tension of quick adjustment main rope.

The utility model discloses application method:

taking a physical model test of the trash rack with the length of more than 100m as an example, the method mainly comprises the following steps:

1. after the trash rack model is manufactured, mounting the connecting substrate on an anchoring foundation; the connection rigidity and levelness are ensured;

2. the universal joint is arranged on the movable ruler, and the rigidity of connection is ensured;

3. connecting an S-shaped digital display electronic tension meter to the universal joint to ensure the connection rigidity;

4. adjusting the telescopic ruler to ensure that the cable connecting end of the tension meter is consistent with the actual cable fixing position in a natural state; and finishing the installation of the cable test device.

5. The main cable is penetrated through a cable hole, the flat head bolt is adjusted to be in a loose state, the S-shaped digital display electronic tensiometer is ensured to be in an initial non-stressed state, and the main cable is in a natural loose state under the condition that the trash rack is free of external load;

6. after the test is started, one end of the cable is manually tightened, then the flat-head bolt is screwed, at the moment, the main cable is in a tensioning state due to the fact that the length of the main cable is limited, the tension value is read through a digital display device of the S-shaped digital display electronic tension meter, the length of the cable is continuously adjusted, and the effect of adjusting the initial cable force is achieved.

After receiving the outer load (wave, rivers and wind-force) in the test process, the form of trash rack is constantly changing, therefore the trend of hawser constantly changes, and because the utility model discloses a universal joint has the characteristic of a plurality of degrees of freedom for no matter how the hawser changes, the axial that can both guarantee the tensiometer and the hawser are guaranteed on same straight line, thereby obtain main cable power real-time characteristic.

To sum up, the utility model discloses can accurately gather the true change of main push-towing rope power, and to the strong adaptability of different experimental operating modes, the simple operation can greatly improve experimental efficiency and accuracy.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A large-span flexible trash rack cable axial force test device is installed on an anchoring foundation, the anchoring foundation is installed on a test breakwater model, the upper surface of the anchoring foundation is a horizontal reference surface, and a tension collecting device is installed on the upper surface of the anchoring foundation and is characterized in that the tension collecting device comprises a connecting base plate which is fixedly installed on the upper surface of the anchoring foundation through a fastener; the other end of the S-shaped electronic tension meter is provided with a cable hole, a locking member is arranged on the S-shaped electronic tension meter at the side of the cable hole, and the locking member fixes a main cable of the flexible trash rack.

2. The large span flexible trash rack cable axial force testing device of claim 1, wherein: horizontal air bubbles are arranged on the upper surface of the connecting substrate.

3. The large span flexible trash rack cable axial force testing device of claim 1, wherein: and a clearance gauge or an adjusting gasket is arranged between the connecting base plate and the anchoring foundation.

4. The large span flexible trash rack cable axial force testing device of claim 1, wherein: the locking member comprises a flat-head bolt and a locking sleeve fixedly installed on the S-shaped electronic tension meter, the locking sleeve is of a hollow structure, and the locking sleeve and the cable hole are located on the same axis.