A calibration device for a wire tension meter

Abstract

The utility model belongs to the field of instrument calibration technology, concretely relates to a kind of calibration device of steel cable tension meter, including rack, and base and bracing frame fixedly arranged on rack, base is provided with force value sensor, and bracing frame is movably connected with lifting plate by elevator, lifting plate is fixedly connected with hook, force value sensor and hook are provided with steel cable, and the test end of tension meter is clamped on the outer periphery of steel cable, bracing frame includes middle plate, and vertical bracing bar is symmetrically arranged in the both sides of middle plate, vertical bracing bar one end is fixedly connected base and other end is fixedly connected middle plate, and middle plate is installed with elevator, vertical bracing bar is provided with multiple sets of limit block and is arranged linearly, multiple sets of limit block are fixedly installed with guide rod, and lifting plate is provided with sliding hole compatible with guide rod, the beneficial effects of the utility model are that: the loading principle of steel cable is simple and stable, and the calibration of steel cable tension meter is easily realized.

Description

Technical Field

[0001] This utility model relates to the field of instrument calibration technology, specifically to a calibration device for a cable tension meter. Background Technology

[0002] A cable tension meter, also known as an aviation cable tension meter, is an instrument used to measure the mutual traction force between the inside of a wire mesh and a fixed contact body when the mesh is subjected to tension. The instrument uses a steel plate force-measuring element, and the reading is displayed by a pointer driven by the cable tension, supporting non-invasive measurement to reduce errors.

[0003] After prolonged use, cable tension gauges may develop errors due to wear, environmental changes (such as temperature and humidity), or external impacts. Regular calibration is crucial to maintain measurement accuracy. However, most existing tension gauge calibration devices rely on automated mechanical loading systems to apply cable tension. These devices are complex to install and operate, making them unsuitable for on-site maintenance and field operations. Utility Model Content

[0004] This invention addresses the problems mentioned above by designing a calibration device for a cable tension meter. It uses a hand-cranked screw jack to load the cable, which is simple, stable, and allows for faster calibration of the cable tension meter.

[0005] To achieve the above objectives, this utility model provides a calibration device for a cable tension meter, including a frame, a base and a support fixedly mounted on the frame, a force sensor mounted on the base, a lifting plate movably connected to the support via a lifting mechanism, a hook fixedly connected to the lifting plate, a steel cable between the force sensor and the hook, and a test end of the tension meter snapped onto the outer periphery of the steel cable.

[0006] Furthermore, the base is fixedly mounted with an L-shaped plate by fastening screws, and the outer shell of the force sensor is fixedly connected to the L-shaped plate.

[0007] Furthermore, the support frame includes a middle plate and vertical support rods symmetrically arranged on both sides of the middle plate. One end of each vertical support rod is fixedly connected to the base and the other end is fixedly connected to the middle plate. A lifting mechanism is installed on the middle plate.

[0008] Furthermore, the lifting platform is a hand-cranked screw jack, in which one end of the screw passes through the intermediate plate and is fixedly connected to the lifting plate.

[0009] Furthermore, the vertical support rods are arranged in a linear array with multiple sets of limiting blocks, and guide rods are fixedly installed between the multiple sets of limiting blocks. The lifting plate has sliding holes that are adapted to the guide rods.

[0010] Furthermore, one end of the steel cable is attached to the force sensor via an auxiliary hook, and the other end is attached to the hook.

[0011] Furthermore, the bottom of the frame is symmetrically provided with multiple sets of support legs, and the support legs are fixedly connected to pads.

[0012] In summary, this utility model has the following advantages and beneficial technical effects: 1. In this utility model, the force sensor and the tension meter to be calibrated are used to simultaneously measure the steel cable. The values ​​measured by the two are compared, and the tension meter is calibrated according to the data difference. The force sensor serves as a standard measuring device, and its output value can ensure that the calibration result is accurate and reliable.

[0013] 2. This utility model utilizes a lifting platform to adjust the tension of the steel cable. The screw engagement of the lifting platform's own structure is smooth, thereby ensuring a stable steel cable tension loading process and reducing the risk of steel cable breakage or overload. The combination of the limit block and the guide rod serves to guide the movement of the lifting plate, preventing the lifting plate from moving out of control. The lifting platform is manually operated to achieve tension loading of the steel cable in a small space. The loading principle is simple and easy to understand, suitable for scenarios such as on-site calibration, and reduces reliance on automated equipment. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional schematic diagram of the present invention. Figure 1 ; Figure 2 This is a front view schematic diagram of the present invention; Figure 3 This is a schematic diagram of the installation of the steel cable in this utility model; Figure 4 This is a three-dimensional schematic diagram of some structures in this utility model; Figure 5 This is a three-dimensional schematic diagram of the present invention. Figure 2 .

[0015] The reference numerals in the attached figures are: 1. Frame; 11. Support leg; 12. Pad block; 2. Base; 21. L-shaped plate; 3. Support frame; 31. Intermediate plate; 32. Vertical support rod; 33. Limit block; 34. Guide rod; 4. Force sensor; 5. Lifting platform; 51. Lead screw; 52. Handle; 53. Turntable; 6. Lifting plate; 61. Hook; 7. Steel cable; 8. Auxiliary hook. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail as follows: like Figures 1-3 As shown, this embodiment discloses a calibration device for a cable tension meter, including a frame 1, a base 2 and a support frame 3 fixedly mounted above the frame 1. A force sensor 4 is mounted above the base 2. A lifting plate 6 is movably connected to the support frame 3 via a lifting mechanism 5. A hook 61 is welded to the bottom of the lifting plate 6. A steel cable 7 is arranged between the force sensor 4 and the hook 61. The test end of the tension meter (not shown in the figure) is snapped onto the outer periphery of the steel cable 7. An L-shaped plate 21 is fixedly mounted on the base 2 by fastening screws, and the housing of the force sensor 4 is fixed on the L-shaped plate 21.

[0017] like Figures 4-5 As shown, the support frame 3 includes a middle plate 31 and vertical support rods 32. In this embodiment, there are two sets of vertical support rods 32, symmetrically arranged on both sides of the middle plate 31. One end of the vertical support rod 32 is welded to the fixed base 2, and the other end is welded to the fixed middle plate 31. A lifting mechanism 5 is installed in the middle of the middle plate 31. The lifting mechanism 5 is an SWL type hand-cranked screw lifting mechanism 5. One end of the screw 51 in the lifting mechanism 5 passes through the middle plate 31 and is fixedly connected to the lifting plate 6. The vertical support rods 32 are arranged in a linear array with two limiting blocks 33. A guide rod 34 is installed between the two limiting blocks 33 on the same side. The lifting plate 6 has sliding holes at both ends that are adapted to the guide rods 34.

[0018] like Figure 3 As shown, one end of the steel cable 7 is hung on the force measuring end of the force sensor 4 via an auxiliary hook 8, and the other end of the steel cable 7 is directly hung on the hook 61.

[0019] like Figure 5 As shown, four legs 11 are symmetrically arranged at the bottom of the frame 1, and pads 12 are welded and fixed below the legs 11.

[0020] The working principle of the calibration device for a steel cable tension meter of this utility model is as follows: In use, the steel cable 7 is first hung between the force sensor 4 and the hook 61, and the tension gauge to be calibrated is clamped around the outer circumference of the steel cable 7. The handle 52 is manually operated, causing the turntable 53 to rotate, which in turn drives the input shaft of the elevator 5 to rotate. Through the meshing between the input and output within the elevator 5, the lead screw 51 causes the lifting plate 6 to move up and down based on the intermediate plate 31. When the lifting plate 6 moves closer to the intermediate plate 31, the steel cable 7 is stretched and tension is generated. At this time, the tension gauge and the force sensor 4 on one side of the steel cable 7 simultaneously measure the values. The values ​​measured by the force sensor 4 are compared with the values ​​measured by the tension gauge to calibrate the tension gauge.

[0021] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A calibration device for a steel cable tension meter, characterized in that: The device includes a frame, a base and a support frame fixedly mounted on the frame. The base is equipped with a force sensor. The support frame is movably connected to a lifting plate via a lift mechanism. The lifting plate is fixedly connected to a hook. A steel cable is installed between the force sensor and the hook. The test end of a tension meter is clamped to the outer periphery of the steel cable.

2. The calibration device for a cable tension meter according to claim 1, characterized in that: The base is fixedly mounted with an L-shaped plate by fastening screws, and the outer shell of the force sensor is fixedly connected to the L-shaped plate.

3. The calibration device for a cable tension meter according to claim 1, characterized in that: The support frame includes a middle plate and vertical support rods symmetrically arranged on both sides of the middle plate. One end of each vertical support rod is fixedly connected to the base and the other end is fixedly connected to the middle plate. A lifting mechanism is installed on the middle plate.

4. The calibration device for a cable tension meter according to claim 3, characterized in that: The lifting platform is a hand-cranked screw jack, in which one end of the screw passes through the intermediate plate and is fixedly connected to the lifting plate.

5. The calibration device for a cable tension meter according to claim 3, characterized in that: The vertical support rods are arranged in a linear array with multiple sets of limiting blocks, and guide rods are fixedly installed between the multiple sets of limiting blocks. The lifting plate has sliding holes that are adapted to the guide rods.

6. The calibration device for a cable tension meter according to claim 1, characterized in that: One end of the steel cable is attached to the force sensor via an auxiliary hook, and the other end is attached to the hook.

7. The calibration device for a cable tension meter according to claim 1, characterized in that: The bottom of the frame is symmetrically provided with multiple sets of support legs, and the support legs are fixedly connected to pads.

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