CN213543866U - Tester for cable force instrument - Google Patents
Tester for cable force instrument Download PDFInfo
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- CN213543866U CN213543866U CN202022992061.4U CN202022992061U CN213543866U CN 213543866 U CN213543866 U CN 213543866U CN 202022992061 U CN202022992061 U CN 202022992061U CN 213543866 U CN213543866 U CN 213543866U
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- arm
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Abstract
The utility model provides a cable power appearance testing arrangement, include: an arcuate arm; the first external rope supporting block and the second external rope supporting block are arranged at the left end and the right end of the segmental arm and are provided with grooves which are abutted against a tested cable during testing; the rope clamping mechanism is used for clamping the cable to be measured and is opposite to the concave part in the center of the arch arm; the weighing sensor is connected with the rope clamping mechanism, is arranged in the center of the arched arm, and two ends of the weighing sensor are arranged on the bracket arranged in the center of the arched arm; and the control panel is in electrical signal connection with the weighing sensor and is provided with a display screen for displaying the measurement data of the weighing sensor. The utility model discloses a scheme can be suitable for the accurate test of the cable of multiple different materials.
Description
Technical Field
The utility model relates to a civil engineering science technical field particularly, relates to building, bridge and other use and are applied to oblique pull cable, span wire structure etc. and need carry out the environment and the occasion of tension test for structure safety and health monitoring trade.
Background
Cable force is an important parameter of cable construction. During construction, cable force control is a crucial factor in relation to the forces and structural conditions within the overall structure. The cable force in the use stage has more important influence on the service life of the structure. The cable force measuring method commonly applied in China at present can only measure the cable force in the tensioning stage, and the cable force cannot be measured after tensioning is finished. In the construction process, after one cable is tensioned to a design value according to design requirements, the tension of other cables can change the cable force of the tensioned cable, and the whole structure can be damaged, even disastrous accidents can occur. Therefore, a nondestructive measuring device for accurately measuring the cable force is urgently needed in the civil engineering field. Under the circumstances, it is more important to develop a novel device for measuring the magnitude of the cable force in the prestressed structure and the cable bridge.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cable power appearance testing arrangement to measure the cable power accurately.
The purpose of the utility model is realized like this: a sonde test apparatus comprising:
an arcuate arm;
the first external rope supporting block and the second external rope supporting block are respectively arranged at the left end and the right end of the arched arm and are provided with grooves which are abutted against a tested cable during testing;
the rope clamping mechanism is used for clamping the cable to be measured and is opposite to the concave part in the center of the arch arm;
the weighing sensor is connected with the rope clamping mechanism, is arranged in the center of the arched arm, and two ends of the weighing sensor are arranged on the bracket arranged in the center of the arched arm;
the control panel is in electrical signal connection with the weighing sensor and is provided with a display screen for displaying the measurement data of the weighing sensor;
the weighing sensor is connected with a pull rod in a penetrating mode, one end of the pull rod is connected with the rope clamping mechanism, and the axis of the pull rod penetrates through the center of the arched arm and is perpendicular to a virtual connecting line of the first external rope supporting block and the second external rope supporting block;
the other end of the pull rod is connected with a plate spring piece in a penetrating mode, the connecting point is located in the middle of the plate spring piece, and two sides of the plate spring piece are fixedly connected with the support in the center of the arched arm.
Further, the rope clamping mechanism comprises a central seat, the central seat extends in a direction perpendicular to a virtual connecting line of the first outer rope supporting block and the second outer rope supporting block and is opposite to the concave part in the center of the arch-shaped arm; the rope clamping mechanism further comprises a tightening convex part, a center supporting block and a clamp block, the tightening convex part and the center supporting block are respectively fixed at two ends of the same side of the center seat, the center supporting block is fixedly connected with the pull rod, the center supporting block is in sliding fit with the bow-shaped arm, the clamp block is adjustably arranged on the center seat, the adjusting range of the clamp block is located between the tightening convex part and the center supporting block, and the clamp block and the center supporting block clamp a cable to be tested together during testing.
Furthermore, the rope clamping mechanism further comprises a tightening screw coaxial with the pull rod, the tightening screw penetrates through the tightening protruding portion and is in threaded fit with the tightening protruding portion, one end of the tightening screw is rotatably connected with the clamp block, and the other end of the tightening screw is provided with an operating handle.
Furthermore, one or more buttons for testing are arranged on the control panel.
Furthermore, the arched arm is of an arched box structure, a battery unit for supplying power to the control panel is arranged in the arched arm, and a battery unit opening opposite to the battery unit is formed in the arched arm.
The beneficial effects of the utility model reside in that:
1. the scheme of the utility model can be suitable for the cable test of multiple different materials, through the measurement to different cable tensions, realize the detection to the cable and analyze and sum up to the data acquisition, can prejudge the unsafe factor of cable in advance, and take various precautionary measures in time to prevent the emergence of incident;
2. the utility model discloses a structural configuration is favorable to acquireing accurate measured data.
Drawings
Fig. 1 is an assembly diagram of the present invention.
Fig. 2 is a schematic view of a deformation of the load cell.
Fig. 3 is a schematic view showing a state in which the rope is clamped at the time of the test.
Fig. 4 is a mechanical diagram during testing.
In the figure: 1-tightening lug, 2-clamp block, 3-tightening screw, 4-center support block, 5-first outer rope support block, 6-control panel, 7-button, 8-display screen, 9-pull rod, 10-plate reed, 11-weighing sensor, 12-battery unit, 13-battery unit opening, 14-second outer rope support block, 15-center seat, 16-bow arm.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-4 and the specific embodiments.
As shown in fig. 1, a cable dynamometer testing apparatus includes:
an arcuate arm 16;
the first external rope supporting block 5 and the second external rope supporting block 14 are respectively arranged at the left end and the right end of the arched arm 16, the first external rope supporting block 5 and the second external rope supporting block 14 are respectively provided with a groove which abuts against a cable to be tested during testing, two sides of the grooves of the first external rope supporting block 5 and the second external rope supporting block 14 are opened so as to accommodate the cable to be tested to pass through, and the bottom surface of the groove is provided with a convex cambered surface so as to prevent the cable to be tested from being scratched during testing;
the rope clamping mechanism is used for clamping the cable to be detected and is opposite to the concave part in the center of the bow-shaped arm 16;
the weighing sensor 11 is connected with the rope clamping mechanism, the weighing sensor 11 is arranged in the center of the arched arm 16, and two ends of the weighing sensor 11 are arranged on the bracket arranged in the center of the arched arm 16;
and the control panel 6 is in electric signal connection with the weighing sensor 11 and is provided with a display screen 8 for displaying the measurement data of the weighing sensor 11, and one or more buttons 7 for testing are arranged on the control panel 6.
Wherein, the arc arm 16 is set as an arc box structure and is provided with a battery unit 12 for supplying power to the control panel 6, the arc arm 16 is provided with a battery unit opening 13 facing the battery unit 12, the battery unit opening 13 can be covered by a cover, when the battery unit 12 is replaced, the old battery unit 12 can be taken out through the battery unit opening 13, and then a new battery unit 12 is inserted.
The weighing sensor 11 is connected with a pull rod 9 in a penetrating mode, one end of the pull rod 9 is connected with the rope clamping mechanism, and the axis of the pull rod 9 penetrates through the center of the arched arm 16 and is perpendicular to the virtual connecting line of the first outer rope supporting block 5 and the second outer rope supporting block 14.
In this embodiment, the weighing sensor 11 is made of steel and is in a flexible parallelogram type, that is, two strain gauges are symmetrically adhered to each end of the weighing sensor 11, and if the two strain gauges at each end of the weighing sensor 11 are taken as a group, two groups of strain gauges (four strain gauges) are arranged in this embodiment, and the two groups of strain gauges are symmetrically distributed on the left and right sides of the axis of the pull rod 9, so as to accurately measure the deformation of the weighing sensor 11.
The other end of the pull rod 9 is connected with a plate spring leaf 10 in a penetrating manner, the connecting point is positioned in the middle of the plate spring leaf 10, and two sides of the plate spring leaf 10 are fixedly connected with a support at the center of the arched arm 16, so that the stability, reliability and safety of the mounting structure of the pull rod 9 are guaranteed.
The rope clamping mechanism comprises a central seat 15, the central seat 15 extends in a direction perpendicular to a virtual connecting line of the first outer rope supporting block 5 and the second outer rope supporting block 14 and is opposite to a concave part at the center of the bow-shaped arm 16; the rope clamping mechanism further comprises a tightening convex part 1, a central supporting block 4 and a clamp block 2, the tightening convex part 1 and the central supporting block 4 are respectively fixed at two ends of the same side of the central seat 15, the central supporting block 4 is fixedly connected with the pull rod 9, the surface of the central supporting block 4, which is contacted with a cable to be tested, is a plane, the central supporting block 4 is in sliding fit with the bow-shaped arm 16, the clamp block 2 is adjustably arranged on the central seat 15, the adjusting range of the clamp block 2 is located between the tightening convex part 1 and the central supporting block 4, and the clamp block 2 and the central supporting block 4 clamp the cable to be tested together during testing; the rope clamping mechanism further comprises a tightening screw 3 which is coaxial with the pull rod 9, the tightening screw 3 penetrates through the tightening convex portion 1 and is in threaded fit with the tightening convex portion 1, one end of the tightening screw 3 is rotatably connected with the clamping block 2, and the other end of the tightening screw 3 is provided with an operating handle so as to tighten or loosen the tightening screw 3.
In connection with fig. 2-4, at the time of testing: inserting the cable to be measured into the groove of the first outer cable support block 5 and the groove of the second outer cable support block 14, rotating the tightening screw 3 to drive the clamping block 2 to move towards the center support block 4, so that the clamping block 2 and the center support block 4 clamp the cable to be measured, the cable to be measured is abutted against the groove of the first outer cable support block 5 and the groove of the second outer cable support block 14, the middle tightening screw 3 is continuously tightened to drive the cable to be measured to be properly twisted towards the concave part of the center of the arch arm 16, applying force to the cable to be measured by rotating the tightening screw 3, the center of the arch arm 16 is overlapped with the force application line, the axis of the pull rod 9 and the axis of the tightening screw 3, and the rebound tension (x in fig. 4, perpendicular to the virtual connecting line of the first outer cable support block 5 and the second outer cable support block 14) generated by the cable to be directly applied to the pull rod 9, the load cell 11 is held by the pull rod 9 in the center, and since the load cell 11 has support points at both ends, the load cell 11 bends when the pull rod 9 is loaded, and the load cell 11 generates an electric signal proportional to the force, which is amplified, converted and displayed on the display screen 8 of the control panel 6.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and such changes or improvements should fall within the protection scope of the present invention.
Claims (5)
1. A cable dynamometer testing apparatus, comprising:
an arcuate arm (16);
a first external rope support block (5) and a second external rope support block (14) which are respectively arranged at the left end and the right end of the arched arm (16), wherein the first external rope support block (5) and the second external rope support block (14) are provided with grooves which are abutted against a tested cable during testing;
the rope clamping mechanism is used for clamping the cable to be detected and is opposite to the concave part in the center of the bow-shaped arm (16);
the weighing sensor (11) is connected with the rope clamping mechanism, the weighing sensor (11) is arranged in the center of the arched arm (16), and two ends of the weighing sensor are arranged on the bracket arranged in the center of the arched arm (16);
the control panel (6) is in electric signal connection with the weighing sensor (11) and is provided with a display screen (8) for displaying the measurement data of the weighing sensor (11);
the weighing sensor (11) is connected with a pull rod (9) in a penetrating mode, one end of the pull rod (9) is connected with the rope clamping mechanism, and the axis of the pull rod (9) penetrates through the center of the arched arm (16) and is perpendicular to the virtual connection line of the first outer rope supporting block (5) and the second outer rope supporting block (14);
the other end of the pull rod (9) is connected with a plate spring leaf (10) in a penetrating mode, the connection point is located in the middle of the plate spring leaf (10), and two sides of the plate spring leaf (10) are fixedly connected with a support in the center of the arched arm (16).
2. The apparatus of claim 1, wherein: the rope clamping mechanism comprises a central seat (15), the central seat (15) extends in a direction perpendicular to a virtual connecting line of the first outer rope supporting block (5) and the second outer rope supporting block (14) and is opposite to a concave part in the center of the arch-shaped arm (16); the rope clamping mechanism further comprises a tightening protruding portion (1), a center supporting block (4) and a clamp block (2), the tightening protruding portion (1) and the center supporting block (4) are fixed to the two ends of the same side of the center seat (15) respectively, the center supporting block (4) is fixedly connected with the pull rod (9), the center supporting block (4) is in sliding fit with the arch arm (16), the clamp block (2) is adjustably arranged on the center seat (15), the adjusting range of the clamp block (2) is located between the tightening protruding portion (1) and the center supporting block (4), and the clamp block (2) and the center supporting block (4) clamp a rope to be tested together during testing.
3. The apparatus of claim 2, wherein: the rope clamping mechanism further comprises a tightening screw (3) coaxial with the pull rod (9), the tightening screw (3) penetrates through the tightening convex part (1) and is in threaded fit with the tightening convex part (1), one end of the tightening screw (3) is rotatably connected with the clamp block (2), and the other end of the tightening screw (3) is provided with an operating handle.
4. The apparatus of claim 1, wherein: one or more buttons (7) for testing are arranged on the control panel (6).
5. The apparatus of claim 1, wherein: the arched arm (16) is of an arched box structure, a battery unit (12) for supplying power to the control panel (6) is arranged in the arched arm (16), and a battery unit opening (13) which is opposite to the battery unit (12) is formed in the arched arm (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022992061.4U CN213543866U (en) | 2020-12-14 | 2020-12-14 | Tester for cable force instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022992061.4U CN213543866U (en) | 2020-12-14 | 2020-12-14 | Tester for cable force instrument |
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| Publication Number | Publication Date |
|---|---|
| CN213543866U true CN213543866U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022992061.4U Active CN213543866U (en) | 2020-12-14 | 2020-12-14 | Tester for cable force instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624386A (en) * | 2021-08-10 | 2021-11-09 | 杨雷恒 | Accurate measuring device of aviation cable wire tension |
| CN117647347A (en) * | 2024-02-04 | 2024-03-05 | 上海建科检验有限公司 | Frequency-method inhaul cable force measurement method based on frequency optimization |
-
2020
- 2020-12-14 CN CN202022992061.4U patent/CN213543866U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624386A (en) * | 2021-08-10 | 2021-11-09 | 杨雷恒 | Accurate measuring device of aviation cable wire tension |
| CN113624386B (en) * | 2021-08-10 | 2022-07-08 | 杨雷恒 | Accurate measuring device of aviation cable wire tension |
| CN117647347A (en) * | 2024-02-04 | 2024-03-05 | 上海建科检验有限公司 | Frequency-method inhaul cable force measurement method based on frequency optimization |
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