CN220490285U - Torsion calibration device - Google Patents

Abstract

The utility model discloses a torsion calibration device, which comprises a bracket, wherein an angle dial is arranged on the bracket, one end of a zero scale mark of the angle dial is horizontally arranged on the bracket, a force arm rod is arranged in front of the angle dial, the lower end of the force arm rod coincides with the zero scale mark of the angle dial, a stress opening for inserting a torsion tool is arranged at one end, close to the angle dial, of the force arm rod, a plurality of force adjusting holes are formed in the force arm rod, and moment codes are arranged on the force adjusting holes. The simple and visual torsion calibration device without electricity can greatly meet the requirement of real-time torsion calibration on a construction site, is simple to operate, can perform accurate calibration operation without complex arrangement and expertise, has lower manufacturing cost, and is more economical and practical.

Description

Torsion calibration device

Technical Field

The utility model relates to a torsion calibration device.

Background

The bolts and nuts need to be tightened with a suitable torque during assembly to ensure the stability of the connection. Too tight or too loose may cause failure of the connection, and torque tools are therefore widely used. However, as the service time increases, the torque tool gradually loses its accuracy, which may be caused by wear of parts, insufficient lubrication, or internal mechanism failure. If the torque wrench is no longer accurate, the required torque cannot be provided, thereby affecting engineering quality and safety.

At present, the torque force measuring equipment in the market is basically electronic equipment, whether the performance of an instrument cannot be visually judged normally or not, the instrument is high in price and high in maintenance and maintenance requirements, the use environment is high, and an additional power supply is needed, so that the electronic instrument is not suitable for being used on the site of a project construction site. Therefore, there is a need for a simple, intuitive, power-free torque calibration device that facilitates rapid detection and calibration by workers on a worksite.

Disclosure of Invention

The present utility model is directed to a torsion calibration device, and more particularly to a torsion calibration device for calibrating torsion of a torsion calibration device.

The aim of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a torsion calibrating device, includes the bracket, be provided with the angle scale on the bracket, the one end level of the zero scale mark of angle scale is placed on the bracket, the place ahead of angle scale is provided with the arm lever of force, the lower extreme of arm lever and the coincidence of the zero scale mark of angle scale, the one end that is close to the angle scale on the arm lever of force is provided with the atress mouth that is used for pegging graft torsion instrument, be provided with a plurality of accent power holes on the arm lever of force, be provided with moment sign indicating number on the accent power hole.

Preferably, the stress opening is of an inner square structure.

Preferably, the force adjusting hole is arranged at a part of the force arm rod, which is not overlapped with the angle scale.

Preferably, the force adjusting holes are uniformly distributed in the part of the force arm rod, which is not overlapped with the angle disc, along the length direction of the force arm rod.

Preferably, the moment code is detachably connected with the force adjusting hole.

Preferably, the arm lever is in a transparent state.

Preferably, a base is arranged below the bracket.

The beneficial technical effects of the utility model are as follows:

1. the simple and visual torsion calibration device without electricity can greatly meet the requirement of real-time torsion calibration on a construction site, is simple to operate, can perform accurate calibration operation without complex arrangement and expertise, has lower manufacturing cost, and is more economical and practical.

2. The torque calibration device provided by the utility model can calculate the lowest torque standard in advance before measurement, select proper torque codes and force adjusting holes according to the lowest torque standard, and mark the torque codes and force adjusting holes on the angle scale, so that when a field worker detects a torque tool, the torque tool can be rapidly judged whether to accord with the lowest torque standard by observing whether the force arm lever reaches the marked position, and the torque calibration device is simple, practical and high in efficiency.

Drawings

Fig. 1 is a schematic view of a torsion calibration apparatus according to an embodiment of the utility model.

In the figure: the device comprises a 1-bracket, a 2-angle disc, a 3-force arm rod, a 4-force bearing port, a 5-force adjusting hole, a 6-moment code and a 7-base.

Detailed Description

In order to make the technical solution of the present utility model more clear and obvious to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

As shown in fig. 1, the torsion calibration device provided in this embodiment includes a bracket 1, an angle scale 2 is provided on the bracket 1, one end of zero scale mark of the angle scale 2 is horizontally placed on the bracket 1, the front of the angle scale 2 is provided with a force arm rod 3, the lower end of the force arm rod 3 coincides with the zero scale mark of the angle scale 2, one end of the force arm rod 3, which is close to the angle scale 2, is provided with a force receiving opening 4 for inserting a torsion tool, the force arm rod 3 is provided with a plurality of force adjusting holes 5, the force adjusting holes 5 are provided with moment codes 6, according to the formula: t=f×l×sin α, wherein: t: moment, F: acting force, L: arm length, α: the included angle is rotated, so that the natural torsion (fixed value) of the force-exerting arm lever 3 acting on the force-exerting opening 4 and the torsion of the moment code 6 acting on the force-exerting opening 4 can be calculated, and the final torsion exerted on the force-exerting opening 4 is the sum of the natural torsion and the torsion;

when the device is used, according to the torque value of a torque tool to be calibrated, a torque code 6 (namely F) with proper weight is selected, a proper force adjusting hole 5 is selected for hanging (namely L) the torque code 6, the rotating angle (namely alpha) of the force arm rod 3 under the torque value is calculated, when the device is calibrated, the torque tool is inserted into the force receiving opening 4, the torque is applied, the force arm rod 3 can rotate along with the rotation of the force receiving opening 4, whether the lower end of the force arm rod 3 reaches the calculated angle or not is observed, whether the torque tool has errors or not can be tested, if so, after the torque tool is adjusted, the torque tool is inserted into the force receiving opening 4 again, whether the force arm rod 3 reaches the designated position or not is observed, and the operation is repeated until the force arm rod 3 reaches the designated position, namely the calibration is completed.

In this embodiment, as shown in fig. 1, the force receiving opening 4 has an inner square structure and a general shape, and can be adapted to various torque tools.

In this embodiment, as shown in fig. 1, the force adjusting hole 5 is disposed at a portion of the arm lever 3 which is not overlapped with the angle scale 2, so that the moment code 6 is convenient to hang.

In this embodiment, as shown in fig. 1, the force adjusting holes 5 are uniformly distributed along the length direction of the force arm rod 3 at the part of the force arm rod 3 which is not overlapped with the angle disc 2, the moment code 6 is detachably connected with the force adjusting holes 5, and the moment code 6 is hung on different force adjusting holes 5, so that different force arm distances L can be formed, and the calibration range of the device is enlarged.

In this embodiment, as shown in fig. 1, the arm lever 3 is in a transparent state, and the angle of rotation of the arm lever 3 can be clearly seen.

In the present embodiment, as shown in fig. 1, a base 7 is provided below the bracket 1 for supporting the entire apparatus.

In summary, in the embodiment, the simple, visual and power-free torsion calibration device provided by the embodiment can greatly meet the requirement of real-time torsion calibration on a construction site, is simple to operate, can perform accurate calibration operation without complex arrangement and expertise, has lower manufacturing cost, and is more economical and practical; the provided torsion calibration device can calculate the lowest torsion standard in advance before measurement, and select proper moment code 6 and force adjusting hole 5 according to the lowest torsion standard, and then mark on the angle scale 2, so when the field worker detects the torsion tool, the torsion tool can be rapidly judged whether to accord with the lowest torsion standard by observing whether the force arm rod 3 reaches the mark position, and the torsion calibration device is simple, practical and high in efficiency.

The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims (7)

1. A torsion calibration apparatus, characterized in that: including bracket (1), be provided with angle scale (2) on bracket (1), the one end level of the zero scale mark of angle scale (2) is placed on bracket (1), the place ahead of angle scale (2) is provided with forceful arm lever (3), the lower extreme of arm lever (3) coincides with the zero scale mark of angle scale (2), the one end that is close to angle scale (2) on arm lever (3) is provided with atress mouth (4) that are used for pegging graft torque tool, be provided with a plurality of accent power hole (5) on arm lever (3), be provided with moment sign indicating number (6) on accent power hole (5).

2. A torsion calibration apparatus according to claim 1, wherein: the stress opening (4) is of an inner square structure.

3. A torsion calibration apparatus according to claim 1, wherein: the force adjusting hole (5) is arranged at the part of the force arm rod (3) which is not overlapped with the angle disc (2).

4. A torsion calibration apparatus according to claim 3, wherein: the force adjusting holes (5) are uniformly distributed along the length direction of the force arm rod (3) at the part of the force arm rod (3) which is not overlapped with the angle disc (2).

5. A torsion calibration apparatus according to claim 1, wherein: the moment code (6) is detachably connected with the force adjusting hole (5).

6. A torsion calibration apparatus according to claim 1, wherein: the force arm rod (3) is in a transparent state.

7. A torsion calibration apparatus according to claim 1, wherein: a base (7) is arranged below the bracket (1).