Inhaul cable positioning device and inhaul cable force detection device

Abstract

The utility model discloses an inhaul cable positioning device and an inhaul cable force detection device, a driving wheel in a driving assembly and an auxiliary wheel in an adjusting assembly are arranged to limit the position of an inhaul cable along the circumferential direction of the inhaul cable, and a mounting frame where the driving wheel is mounted is elastically connected with a connecting frame, so that the driving wheel is pressed against the inhaul cable by using elastic force; after the positioning device is installed at any position of the inhaul cable, the whole positioning device or the detection device is driven by the driving wheel to advance to a to-be-tested position along the inhaul cable, frequent manual high-altitude operation is avoided, the labor cost is saved, and the construction risk is reduced. Meanwhile, as the mounting frame is elastically connected with the connecting frame, the inhaul cable can be compressed, so that the stress is constant and uniform during cable force detection, the test error is reduced, and the test efficiency is improved at the same time; in addition, the connecting frame is in sliding connection with the two adjusting plates, the size of the positioning space of the auxiliary wheel and the driving wheel can be adjusted according to the diameter of the inhaul cable, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge detection, in particular to a cable positioning device and a cable force detection device. Background Art

[0002] With the rapid development of bridge engineering technology in the world, the span of bridges is also increasing, and the demand for bridge cable tension detection is also increasing. At present, cable tension testing generally adopts the method of acceleration sensor designed based on string vibration theory. Among them, the acceleration sensor method belongs to the contact test method, which can accurately measure and reflect the results when subjected to external forces. In actual testing, the vibration signal of the cable is measured randomly or by artificial excitation by coupling the acceleration sensor to the cable (cable force is the tension applied to the test object. The test process converts the cable force by installing the acceleration sensor and recording the corresponding acceleration data to evaluate the state of the cable structure).

[0003] However, in the actual application of the above method, manual on-site binding is usually used, and the installation location cannot be far away from the anchor point or damper. The test results are greatly affected by the interference of boundary conditions. In addition, the force of the manual binding method is not balanced, which can easily cause false measurement data. Manual installation requires the use of aerial work auxiliary equipment such as aerial work vehicles and stepladders, which affects the existing traffic and is costly. At the same time, it is very inconvenient to change the test location during aerial work, and there are certain risks.

[0004] In addition, the existing enveloping cable force detection device, because it conducts a comprehensive test on the cable, may easily interfere with other objects on the cable, such as landscape light strips or auxiliary tooling. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a cable positioning device and a cable force detection device to solve the problems of large artificial interference, low efficiency and easy interference with cable accessories during the cable force detection process.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cable positioning device, used for detecting the cable force of the cable, comprises an adjustment component and a driving component;

[0008] The driving assembly comprises a driving wheel, a mounting frame, and a connecting frame; the driving wheel supports the lower surface of the cable, and the driving direction of the driving wheel is parallel to the axis of the cable; the driving wheel is rotatably connected to the mounting frame, and the connecting frame is elastically connected to an end of the mounting frame away from the cable;

[0009] The adjustment assembly includes two cross-arranged adjustment plates, each of which is provided with an auxiliary wheel at the top end, the auxiliary wheel abuts against the cable and the travel direction of the auxiliary wheel is the same as the driving direction of the driving wheel, and the auxiliary wheel and the driving wheel together enclose a positioning space for the cable; the two adjustment plates are slidably connected to the two sides of the connecting frame respectively.

[0010] In an embodiment of the utility model, the adjustment assembly further comprises an adjustment screw, the adjustment plate is provided with a slide rail perpendicular to the axis of the cable, the adjustment screw is arranged in the slide rail and assembled and connected with the connection frame.

[0011] In an embodiment of the present invention, the cross section of the connecting frame is U-shaped.

[0012] In an embodiment of the utility model, the number of slide rails provided on each of the adjustment plates is greater than or equal to two, and the slide rails are arranged parallel to the axis of the cable.

[0013] In an embodiment of the utility model, the adjustment assembly also includes a wheel axle and a tensioning spring, the wheel axle is arranged at the top of the adjustment plate, the auxiliary wheel is rotatably connected to the wheel axle, and the two ends of the tensioning spring are respectively connected to the ends of the wheel axles on the two adjustment plates.

[0014] In an embodiment of the utility model, the number of the auxiliary wheels provided on each adjustment plate is greater than or equal to two, and the auxiliary wheels are arranged parallel to the axis of the cable.

[0015] In an embodiment of the utility model, a driving motor is provided on the driving wheel, the number of the driving wheels is greater than or equal to two, and the driving wheels are arranged parallel to the axis of the cable.

[0016] In an embodiment of the utility model, the connecting frame is provided with a guide rail along the vertical direction, and the mounting frame is slidably connected to the guide rail.

[0017] In an embodiment of the utility model, the driving assembly further comprises a compression spring, and two ends of the compression spring are respectively assembled and connected to the mounting bracket and the connecting frame.

[0018] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0019] A cable force detection device comprises a cable positioning device and a detection component, wherein the detection component is assembled and connected with the connection frame.

[0020] The beneficial effects of the utility model are as follows: by setting a driving wheel in the driving assembly and an auxiliary wheel in the adjusting assembly, the position of the cable is restricted along the circumference of the cable, and at the same time, the mounting frame where the driving wheel is installed is elastically connected to the connecting frame, so that the driving wheel is pressed against the cable by elastic force to achieve the final positioning of the cable, avoid embracing detection and thus avoid interference with attachments on the cable, and after being installed at any position of the cable, the entire positioning device or detection device is driven by the driving wheel to move along the cable to the position to be tested, thereby avoiding frequent manual high-altitude operations, saving labor costs, and reducing construction risks; at the same time, since the mounting frame and the connecting frame are elastically connected, the cable can be pressed, so that the force is constant and uniform during cable force detection, reducing test errors and improving test efficiency; in addition, the connecting frame is slidably connected to the two adjustment plates, and the positioning space size of the auxiliary wheel and the driving wheel can be adjusted according to the diameter of the cable, thereby improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an assembly diagram of a cable force detection device in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of

[0023] Figure 3 This is a front view of a cable force detection device in an embodiment of the utility model;

[0024] Description of labels:

[0025] 1. Cable; 2. Driving assembly; 21. Driving wheel; 22. Mounting frame; 23. Connecting frame;

[0026] 24. Guide rail; 25. Compression spring; 26. Driving motor; 3. Adjustment assembly; 31. Adjustment plate;

[0027] 32. Auxiliary wheel; 33. Adjusting screw; 34. Slide rail; 35. Axle; 36. Tension spring. DETAILED DESCRIPTION

[0028] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0029] Please refer to Figures 1 to 3 , a cable positioning device for detecting the cable force of a cable 1, comprising an adjustment component 3 and a drive component 2;

[0030] The driving assembly 2 includes a driving wheel 21, a mounting frame 22, and a connecting frame 23; the driving wheel 21 supports the lower surface of the cable 1, and the driving direction of the driving wheel 21 is parallel to the axis of the cable 1; the driving wheel 21 is rotatably connected to the mounting frame 22, and the connecting frame 23 is elastically connected to an end of the mounting frame 22 away from the cable 1;

[0031] The adjustment assembly 3 includes two cross-arranged adjustment plates 31, and an auxiliary wheel 32 is provided at the top of each adjustment plate 31. The auxiliary wheel 32 abuts against the cable 1 and the travel direction of the auxiliary wheel 32 is the same as the driving direction of the driving wheel 21. The auxiliary wheel 32 and the driving wheel 21 enclose a positioning space for the cable 1; the two adjustment plates 31 are slidably connected to the two sides of the connecting frame 23 respectively.

[0032] A cable force detection device comprises a cable positioning device and a detection component, wherein the detection component is assembled and connected with the connection frame 23.

[0033] It is understandable that during the cable tension test on the bridge, the installation position of the vibration pickup in the detection assembly has a certain influence on the cable vibration frequency and cable tension test. The closer the vibration pickup position is to the anchor point and the damper, the greater the dispersion of the measured cable tension data. The reasonable installation position of the vibration pickup should be on the upper part of the external damper, on the cable where the distance from the external damper is equal to the distance from the damper to the bridge deck. Therefore, when testing the cable tension, the position of the test device needs to be constantly adjusted.

[0034] From the above description, it can be seen that the beneficial effects of the utility model are: by setting the driving wheel 21 in the driving component 2 and the auxiliary wheel 32 in the adjusting component 3, the position of the cable 1 is restricted along the circumference of the cable, and at the same time, the mounting frame 22 where the driving wheel 21 is installed is elastically connected to the connecting frame 23, so that the driving wheel 21 is pressed against the cable 1 by elastic force to achieve the final positioning of the cable 1. After being installed at any position of the cable 1, the entire positioning device or detection device is driven by the driving wheel 21 to move along the cable 1 to the position to be tested, thereby avoiding frequent high-altitude manual operations, saving labor costs, and reducing construction risks; at the same time, since the mounting frame 22 and the connecting frame 23 are elastically connected, the cable 1 can be pressed, so that the force is constant and uniform during cable force detection, reducing test errors and improving test efficiency; in addition, the connecting frame 23 is slidably connected to the two adjustment plates 31, and the positioning space size of the auxiliary wheel 32 and the driving wheel 21 can be adjusted according to the diameter of the cable 1, thereby improving the versatility of the device.

[0035] In an embodiment of the utility model, the adjustment assembly 3 further includes an adjustment screw 33 , the adjustment plate 31 is provided with a slide rail 34 perpendicular to the axis of the cable 1 , and the adjustment screw 33 is arranged in the slide rail 34 and assembled and connected with the connection frame 23 .

[0036] It can be understood that the adjusting screw 33 is arranged inside the slide rail 34 of the adjusting plate 31 and is assembled and connected to the connecting frame 23. During the rotation of the adjusting screw 33, the connecting frame 23 moves upward or downward along the surface of the adjusting plate 31, that is, the driving device where the connecting frame 23 is located moves up and down relative to the adjusting plate 31 under the action of the adjusting screw 33, thereby adjusting the distance between the driving wheel 21 and the auxiliary wheel 32, adjusting the positioning space size of the cable 1, thereby adapting to cables 1 of different sizes and positioning them.

[0037] In the embodiment of the present invention, the cross section of the connecting frame 23 is U-shaped.

[0038] From the above description, it can be seen that the cross-section of the connecting frame 23 is set to be U-shaped, that is, the connecting plate and the transition section between the vertical edge and the bottom edge of the U-shaped edge of the connecting frame 23 are slidingly connected to improve the smoothness of the relative sliding between the adjustment plate 31 and the connecting frame 23; preferably, the U-shaped transition edge of the connecting frame 23 is a straight edge.

[0039] Specifically, the number of the slide rails 34 provided on each of the adjustment plates 31 is greater than or equal to two, and the slide rails 34 are arranged parallel to the axis of the cable 1 .

[0040] It can be seen from the above description that the number of the slide rails 34 provided on each adjustment plate 31 is greater than or equal to two, so as to ensure the stability of the adjustment plate 31 and the connecting frame 23 when they slide relative to each other.

[0041] In an embodiment of the utility model, the adjustment component 3 also includes a wheel axle 35 and a tensioning spring 36, the wheel axle 35 is arranged at the top of the adjustment plate 31, the auxiliary wheel 32 is rotatably connected to the wheel axle 35, and the two ends of the tensioning spring 36 are respectively connected to the ends of the wheel axle 35 on the two adjustment plates 31.

[0042] As can be seen from the above description, a wheel axle 35 is arranged at the top of the adjustment plate 31, and the angle between the two relative wheel axles 35 is set according to actual needs, so as to ensure that the auxiliary wheel 32 on the wheel axle 35 can perfectly cooperate with the driving wheel 21 to achieve the positioning effect of the cable 1. In addition, in order to further enhance the positioning stability, tension springs 36 are arranged at the ends of the two wheel axles 35, and the cable 1 is compressed and positioned again by using the spring tension force.

[0043] In an embodiment of the present utility model, the number of the auxiliary wheels 32 provided on each of the adjustment plates 31 is greater than or equal to two, and the auxiliary wheels 32 are arranged parallel to the axis of the cable 1 .

[0044] From the above description, it can be seen that multiple sets of auxiliary wheels 32 are provided to respectively press different sections of the cable 1 to ensure positioning stability, improve detection efficiency and ensure detection accuracy.

[0045] In the embodiment of the utility model, a driving motor 26 is disposed on the driving wheel 21 , the number of the driving wheels 21 is greater than or equal to two, and the driving wheels 21 are arranged parallel to the axis of the cable 1 .

[0046] From the above description, it can be known that the driving motor 26 is used to drive the driving wheel 21. When the position of the positioning or detection device needs to be adjusted, it is only necessary to start the driving motor 26 so that the friction between the driving wheel 21 and the cable 1 drives the positioning or detection device to move along the cable 1. During the process, due to the clamping force provided by the elastic part, it can be ensured that the friction during the movement is sufficient, so that the staff can freely control the operation of the positioning or detection device. Specifically, the driving wheel 21 includes two, which are divided into an active driving wheel 21 and a driven driving wheel 21 to improve the driving efficiency.

[0047] In the embodiment of the present utility model, the connecting frame 23 is provided with a guide rail 24 along the vertical direction, and the mounting frame 22 is slidably connected to the guide rail 24 .

[0048] From the above description, it can be seen that the guide rail 24 is provided on the connecting frame 23 to guide the mounting frame 22 subjected to elastic force, absorb impact and ensure positioning stability. Preferably, the mounting frame 22 is slidably connected to the guide rail 24 on the connecting frame 23 by bolts.

[0049] In the embodiment of the utility model, the driving assembly 2 further comprises a compression spring 25 , and two ends of the compression spring 25 are respectively assembled and connected with the mounting bracket 22 and the connecting frame 23 .

[0050] The utility model provides a cable positioning device and a cable force detection device, which are mainly used for cable force detection of bridge cables. The following is a specific description in conjunction with an embodiment:

[0051] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is:

[0052] A cable positioning device is used for detecting the cable force of a cable 1, comprising an adjusting component 3 and a driving component 2; the driving component 2 comprises a driving wheel 21, a mounting frame 22, and a connecting frame 23; the driving wheel 21 supports the lower surface of the cable 1, and the driving direction of the driving wheel 21 is parallel to the axis of the cable 1; the driving wheel 21 is rotatably connected to the mounting frame 22, and the connecting frame 23 is connected to the end of the mounting frame 22 away from the cable 1 through a compression spring 25; the adjusting component 3 comprises two cross-arranged adjusting plates 31, and an auxiliary wheel 32 is provided at the top of each adjusting plate 31, the auxiliary wheel 32 abuts against the cable 1 and the travel direction of the auxiliary wheel 32 is the same as the driving direction of the driving wheel 21, and the auxiliary wheel 32 and the driving wheel 21 enclose a positioning space for the cable 1; the two adjusting plates 31 are slidably connected to the two sides of the connecting frame 23 respectively. That is, in this embodiment, the driving wheel 21 in the driving assembly 2 and the auxiliary wheel 32 in the adjusting assembly 3 are provided to limit the position of the cable 1 along the circumference of the cable 1. At the same time, the mounting frame 22 on which the driving wheel 21 is installed is elastically connected to the connecting frame 23, so that the driving wheel 21 is pressed against the cable 1 by elastic force to achieve the final positioning of the cable 1. After being installed at any position of the cable 1, the entire positioning device or detection device is driven by the driving wheel 21 to move along the cable 1 to the position to be tested.

[0053] Specifically, a driving motor 26 is provided on the driving wheel 21, and the number of the driving wheels 21 is two, and the driving wheels 21 are arranged parallel to the axis of the cable 1. The driving motor 26 is used to drive the driving wheel 21. When the position of the positioning or detection device needs to be adjusted, the driving motor 26 only needs to be started, so that the friction between the driving wheel 21 and the cable 1 drives the positioning or detection device to move along the cable 1. During the process, due to the clamping force provided by the elastic part, it can be ensured that the friction during the movement is sufficient, so that the staff can freely control the operation of the positioning or detection device. Specifically, the driving wheel 21 is divided into an active driving wheel 21 and a driven driving wheel 21 to improve the driving efficiency.

[0054] Embodiment 2 of the present utility model is:

[0055] On the basis of the first embodiment, the adjustment assembly 3 further includes an adjustment screw 33, and the adjustment plate 31 is provided with a slide rail 34 perpendicular to the axis of the cable 1, and the adjustment screw 33 is arranged in the slide rail 34 and assembled and connected with the connecting frame 23. There are two slide rails 34 on each adjustment plate 31, and the two slide rails 34 are arranged parallel to the axis of the cable 1. The adjustment screw 33 is arranged inside the slide rail 34 of the adjustment plate 31 and assembled and connected with the connecting frame 23. During the rotation of the adjustment screw 33, the connecting frame 23 moves upward or downward along the plate surface of the adjustment plate 31, that is, the driving device where the connecting frame 23 is located moves up and down relative to the adjustment plate 31 under the action of the adjustment screw 33, thereby adjusting the spacing between the driving wheel 21 and the auxiliary wheel 32, adjusting the size of the positioning space of the cable 1, so as to adapt to cables 1 of different sizes and perform positioning. Preferably, the adjustment screw 33 is a reciprocating screw.

[0056] The cross section of the connecting frame 23 is U-shaped, and the U-shaped transition edge is a straight edge. The cross section of the connecting frame 23 is set to be U-shaped, that is, the connecting plate is slidably connected with the transition section between the vertical edge and the bottom edge of the U-shaped edge of the connecting frame 23, thereby improving the relative sliding smoothness of the adjustment plate 31 and the connecting frame 23.

[0057] Embodiment 3 of the present utility model is:

[0058] On the basis of the first embodiment, the adjustment component 3 also includes an axle 35 and a tension spring 36. The axle 35 is arranged at the top of the adjustment plate 31, and the auxiliary wheel 32 is rotatably connected to the axle 35. The two ends of the tension spring 36 are respectively connected to the ends of the axles 35 on the two adjustment plates 31. The axle 35 is arranged at the top of the adjustment plate 31, and the angle between the two relative axles 35 is set according to actual needs, so as to ensure that the auxiliary wheel 32 on the axle 35 can perfectly cooperate with the driving wheel 21 to achieve the positioning effect of the cable 1. In addition, in order to further enhance the positioning stability, tension springs 36 are arranged at the ends of the two axles 35, and the tension force of the spring is used to compress and position the cable 1 again. Preferably, there are two auxiliary wheels 32 arranged on each adjustment plate 31, and the auxiliary wheels 32 are arranged parallel to the axis of the cable 1.

[0059] The fourth embodiment of the present utility model is:

[0060] Based on the first embodiment, a guide rail 24 is provided on the connecting frame 23 to guide the mounting frame 22 subjected to elastic force, absorb impact and ensure positioning stability. Preferably, the mounting frame 22 is slidably connected to the guide rail 24 on the connecting frame 23 by bolts.

[0061] Embodiment 5 of the present utility model is:

[0062] A cable force detection device comprises any one of the cable 1 positioning devices and a detection component in the above-mentioned embodiments 1 to 4, wherein the detection component is assembled and connected to a connecting frame 23.

[0063] Preferably, the positioning device or detection device in this example adopts a lightweight design, the main material is made of stainless steel, the design weight is only 4000g, and the carrying weight is 4000g;

[0064] In summary, the cable positioning device and cable force detection device provided by the utility model limit the position of the cable along the circumference of the cable by setting a driving wheel in the driving assembly and an auxiliary wheel in the adjusting assembly, and use a triangular positioning structure to position the cable. Under the premise of reasonable structure, the cable is avoided from being fully covered, and cable attachments such as light strips are effectively avoided during operation;

[0065] At the same time, it adopts DC reduction motor control and the cable force sensor is mounted on the robot platform, which gets rid of the influence of the damper boundary in the traditional test method. After reaching the predetermined position, it can rely on the motor to lock it on the cable body, firmly fix the sensor and the cable body, improve the detection accuracy and reduce human error; there is no need to use aerial platforms, ladders and other auxiliary means on site, which has no impact on the existing traffic and reduces the auxiliary cost and risk; the design of this machine takes into account the serial connection of multiple machines to provide greater load and holding capacity.

[0066] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A cable positioning device for detecting the cable force of a cable, characterized in that: It includes a regulating component and a driving component; The driving assembly includes a driving wheel, a mounting frame, and a connecting frame; The driving wheel supports the lower surface of the cable, and the driving direction of the driving wheel is parallel to the axis of the cable; The driving wheel is rotatably connected to the mounting frame, and the connecting frame is elastically connected to an end of the mounting frame away from the cable; The adjustment assembly includes two cross-arranged adjustment plates, each of which is provided with an auxiliary wheel at the top end, the auxiliary wheel abuts against the cable and the travel direction of the auxiliary wheel is the same as the driving direction of the driving wheel, and the auxiliary wheel and the driving wheel together enclose a positioning space for the cable; the two adjustment plates are slidably connected to the two sides of the connecting frame respectively.

2. A cable positioning device according to claim 1, characterized in that: The adjustment assembly also includes an adjustment screw. The adjustment plate is provided with a slide rail perpendicular to the axis of the cable. The adjustment screw is arranged in the slide rail and is assembled and connected with the connection frame.

3. A cable positioning device according to claim 2, characterized in that: The cross section of the connecting frame is U-shaped.

4. A cable positioning device according to claim 2, characterized in that: The number of the slide rails provided on each adjustment plate is greater than or equal to two, and the slide rails are arranged parallel to the axis of the cable.

5. A cable positioning device according to claim 1, characterized in that: The adjustment assembly also includes a wheel axle and a tension spring. The wheel axle is arranged at the top of the adjustment plate. The auxiliary wheel is rotatably connected to the wheel axle. The two ends of the tension spring are respectively connected to the ends of the wheel axles on the two adjustment plates.

6. A cable positioning device according to claim 1, characterized in that: The number of the auxiliary wheels provided on each adjustment plate is greater than or equal to two, and the auxiliary wheels are arranged parallel to the axis of the cable.

7. A cable positioning device according to claim 1, characterized in that: The driving wheel is provided with a driving motor, the number of the driving wheels is greater than or equal to two, and the driving wheels are arranged parallel to the axis of the cable.

8. A cable positioning device according to claim 1, characterized in that: The connecting frame is provided with a guide rail along the vertical direction, and the mounting frame is slidably connected to the guide rail.

9. A cable positioning device according to claim 1, characterized in that: The driving assembly also includes a compression spring, and two ends of the compression spring are respectively assembled and connected to the mounting bracket and the connecting frame.

10. A cable force detection device, characterized in that: It comprises a cable positioning device and a detection component as described in any one of claims 1 to 9, wherein the detection component is assembled and connected to the connecting frame.

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