CN211541035U

CN211541035U - Auxiliary device for calibrating torque wrench and torque wrench calibration structure

Info

Publication number: CN211541035U
Application number: CN202020034531.3U
Authority: CN
Inventors: 李长青; 朱家林; 侯战鹏; 李培丰; 尹雪保
Original assignee: China Water Resource And Hydropower Engineering Consultancy Beijing Ltd
Current assignee: China Water Resource And Hydropower Engineering Consultancy Beijing Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-09-22
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses an auxiliary device for calibrating a torque wrench and a torque wrench calibration structure, wherein the auxiliary device for calibrating the torque wrench comprises a base, a bearing beam and a bearing plate, the bearing beam is fixed on the base, the bearing plate is fixed at two ends of the bearing beam, a channel for an anchor rod to pass is arranged along the length direction of the bearing beam, and a hole for the anchor rod to pass is arranged on the bearing plate; this application sets up the carrier bar through fixing on the base, sets up the loading board at the both ends of carrier bar, sets up passageway and the hole that supplies the stock to pass on carrier bar and loading board respectively, and the stock can pass passageway and hole, and the jack is connected to its one end, and torque wrench is connected to the other end, realizes the calibration to torque wrench, convenient to use, simple structure.

Description

Auxiliary device for calibrating torque wrench and torque wrench calibration structure

Technical Field

The utility model relates to a building engineering struts technical field, concretely relates to rate torque wrench's auxiliary device and torque wrench rate structure.

Background

The prestressed anchor rod can apply certain prestress to the surrounding rock through the anchoring force generated by the anchor head, anchor unstable surrounding rock, and is widely applied to various building projects. When the prestressed anchor rod is anchored, a tensioning tool needs to be adopted for prestressed tensioning, and more torque wrenches are adopted for tensioning in the current engineering. The torque wrench is provided with a certain scale, the nut worn on the free end of the anchor rod is screwed through the hexagonal socket to exert prestress, and when the torque for screwing the nut reaches the set value of the torque wrench, the wrench can make a click sound to indicate that the prestress exerted reaches the set requirement. The scale unit of the existing torque wrench is 'N.m', the prestress design value of the anchor rod is generally t or kN, which is far away from the torque indication value of the torque wrench, so that the torque wrench needs to be calibrated before prestress tensioning, and the corresponding relation between the torque indication value of the torque wrench and the prestress is obtained.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a rate torque wrench's auxiliary device.

Further, the utility model provides a torque wrench calibration structure

The utility model adopts the technical proposal that:

the utility model provides a calibration torque wrench's auxiliary device, includes base, carrier bar and loading board, the carrier bar is fixed on the base, and the loading board is fixed at the both ends of carrier bar, offers the passageway that supplies the stock to pass along carrier bar length direction, set up the hole that supplies the stock to pass on the loading board.

Furthermore, the bearing plate comprises a first bearing plate and a second bearing plate, the first bearing plate is fixedly arranged at one end of the bearing beam, and the second bearing plate is fixedly arranged at the other end of the bearing beam.

Furthermore, a first through hole for the anchor rod to pass through is formed in the first bearing plate, and a U-shaped notch is formed in the second bearing plate.

Furthermore, the number of the carrier beams is two, the two carrier beams are arranged at intervals, and a channel for the anchor rod to pass through is formed between the two carrier beams.

Furthermore, the bearing plate further comprises a positioning angle iron, and one side of the positioning angle iron is fixed on the outer side wall of the bearing plate.

Further, the base comprises a first beam seat and a second beam seat which are designed oppositely, and the first beam seat and the second beam seat are connected end to form a rectangular structure; the bearing plate is fixed on the first beam seat or the second beam seat which are arranged oppositely.

Furthermore, a lifting lug is fixedly arranged on the first beam seat or the second beam seat.

Further, this application still provides a torque wrench calibration structure, including jack, stock, nut, auxiliary device and torque wrench, auxiliary device adopts foretell calibration torque wrench's auxiliary device, the stock passes passageway and hole on the auxiliary device, the one end at the stock is fixed to the jack, nut screw-thread fit is at the other end of stock, torque wrench establishes on the nut through hexagonal cover barrel cover.

Further, still include the backing plate, the backing plate sets up on the lateral wall of loading board, and its lower extreme location has seted up the second through-hole on the backing plate on location angle bar, and this second through-hole is concentric with the hole on the loading board.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

this application sets up the carrier bar through fixing on the base, sets up the loading board at the both ends of carrier bar, sets up passageway and the hole that supplies the stock to pass on carrier bar and loading board respectively, and the stock can pass passageway and hole, and the jack is connected to its one end, and torque wrench is connected to the other end, realizes the calibration to torque wrench, convenient to use, simple structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a top view of an auxiliary device for a ratiometric torque wrench of an embodiment of the present application;

FIG. 2 is a schematic view of a second carrier plate structure according to an embodiment of the present application;

FIG. 3 is a side view of an auxiliary device for a ratiometric torque wrench of an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic diagram of a calibration structure of the torque wrench according to the embodiment of the present application;

fig. 7 is a schematic view of a bolt mounting structure according to an embodiment of the application.

The bearing plate comprises a base plate 1, a first bearing plate 2, a first through hole 21, a second bearing plate 3, a U-shaped notch 31, a bearing beam 4, a positioning angle iron 5, a first seat beam 6, a second seat beam 7, a lifting lug 8, an anchor rod 9, a jack 10, a nut 11 and a torque wrench 12.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 to 5, the auxiliary device for calibrating a torque wrench comprises a base, a carrier beam 4 and a bearing plate, wherein the carrier beam 4 is fixed on the base, the bearing plate is fixed at two ends of the carrier beam 4, a channel for an anchor rod 9 to pass through is arranged along the length direction of the carrier beam 4, and a hole for the anchor rod 9 to pass through is arranged on the bearing plate.

This application sets up carrier beam 4 through fixing on the base, sets up the loading board at the both ends of carrier beam 4, sets up passageway and the hole that supplies stock 9 to pass on carrier beam 4 and loading board respectively, and stock 9 can pass passageway and hole, and jack 10 is connected to its one end, and torque wrench 12 is connected to the other end, realizes the calibration to torque wrench 12, convenient to use, simple structure.

Preferably, the bearing plate comprises a first bearing plate 2 and a second bearing plate 3, the first bearing plate 2 is fixedly arranged at one end of the bearing beam 4, and the second bearing plate 3 is fixedly arranged at the other end of the bearing beam 4. The first bearing plate 2 is provided with a first through hole 21 for the anchor rod 9 to pass through, and the second bearing plate 3 is provided with a U-shaped notch 31.

The first bearing plate 2 can be fixed on the bearing beam 4 in a welding mode, a first through hole 21 for the anchor rod 9 to pass through is formed in the first bearing plate 2, and one end of the anchor rod 9 is connected with the torque wrench 12 after passing through the first through hole 21. The second bearing plate 3 can be fixed on the bearing beam 4 by welding, a U-shaped notch 31 is formed in the second bearing plate 3, and the jack 10 can be fixed on the second bearing plate 3 and connected with the other end of the anchor rod 9 through the U-shaped notch 31. Both the first loading plate 2 and the second loading plate 3 can be made of steel plates.

Preferably, the number of the carrier beams 4 is two, the two carrier beams 4 are arranged at intervals, and a channel for the anchor rod 9 to pass through is formed between the two carrier beams 4.

Specifically, the carrier beams 4 are made of two i-shaped steels, the two carrier beams 4 are arranged in parallel at intervals, a channel corresponding to the first through hole 21 and the U-shaped notch 31 is formed between the two carrier beams 4, and the anchor rod 9 can sequentially penetrate through the U-shaped notch 31, the channel and the first through hole 21.

Preferably, the bearing plate further comprises a positioning angle iron 5, and one side of the positioning angle iron 5 is fixed on the outer side wall of the bearing plate.

Fix one side of location angle bar 5 on the lateral wall of loading board, make the lateral wall of loading board form a location step, make things convenient for the installation location of later stage backing plate 1.

Preferably, the base comprises a first beam seat and a second beam seat which are designed oppositely, and the first beam seat and the second beam seat are connected end to form a rectangular structure; the bearing plate is fixed on the first beam seat or the second beam seat which are arranged oppositely.

The bearing plate can be fixed on the first beam seat or the second beam seat which are oppositely arranged in a welding mode. Through setting up the base, be convenient for this application auxiliary device install and the counter weight according to site conditions to keep auxiliary device balanced.

Preferably, the first beam seat or the second beam seat is fixedly provided with a lifting lug 8.

The lifting lug 8 is made of steel plates, can be fixed on the first beam seat or the second beam seat in a welding mode, and is provided with a through hole for connecting a lifting rope.

In an exemplary embodiment, four lifting lugs 8 are spaced apart on the first beam seat to facilitate movement of the auxiliary device.

Further, this application still provides a torque wrench calibration structure, including jack 10, stock 9, nut 11, auxiliary device and torque wrench 12, auxiliary device adopts this application calibration torque wrench 12's auxiliary device, stock 9 passes passageway and hole on the auxiliary device, jack 10 fixes the one end at

stock

9, 11 screw-thread fit of nut are at the other end of stock 9, and torque wrench 12 establishes on nut 11 through hexagonal sleeve cover.

Preferably, still include backing plate 1, backing plate 1 sets up on the lateral wall of loading board, and its lower extreme location is seted up the second through-hole on positioning angle iron 5 on backing plate 1, and this second through-hole is concentric with the hole on the loading board.

Backing plate 1 can set up one or more, prevents to damage the loading board in torque wrench 12 calibration process.

The principle employed by the present application is Newton's third law, where when two objects interact, the forces exerted on each other are equal and opposite. I.e. the force of the torque wrench on the digimatic jack (or dynamometer) is equal to the force of the jack (or dynamometer) on the torque wrench. A calibration method of the torque wrench comprises the following steps:

(1) before calibration, the prestressed anchor rod, the digital display jack, the base plate, the nut and the like are sequentially installed in place, the digital display jack is lifted by 2-5 cm, after the digital display jack is installed in place, the digital display jack is reset, the nut is slightly screwed, concentricity is adjusted, and the torque value of the torque wrench is set on a small scale (50 or 100 N.m). And starting to rotate the torque wrench at a constant speed in the clockwise direction, stopping operation when the torque wrench makes an alarm sound, and recording the indication value displayed by the digital display jack. Setting torque value of the torque wrench at regular intervals (100N.m or 250N.m, depending on the indication value of the torque wrench), repeating the above operations until the maximum torque of the torque wrench is reached, and recording the corresponding force value.

(2) After reaching the maximum value, the measurement was repeated once more in the same manner, and the average of the two measured values was taken as a representative value. When the two measurements exceeded the average by 5%, the calibration was repeated.

(3) Calculating and analyzing the calibration result by using unary regression, wherein the adopted mathematical model is Y ═ Ax + B; the results of the regression analysis are arranged into a formula or a chart for use in testing.

Experimental example: adopt this application auxiliary device and structure to carry out torque wrench and rate, the data arrangement is as follows:

in this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a rate torque wrench's auxiliary device, its characterized in that includes base, carrier bar (4) and loading board, carrier bar (4) are fixed on the base, and the passageway that supplies stock (9) to pass is seted up along carrier bar (4) length direction at the both ends of carrier bar (4) to the loading board, set up the hole that supplies stock (9) to pass on the loading board.

2. The auxiliary device for calibrating the torque wrench as claimed in claim 1, wherein the bearing plates comprise a first bearing plate (2) and a second bearing plate (3), the first bearing plate (2) is fixedly disposed at one end of the bearing beam (4), and the second bearing plate (3) is fixedly disposed at the other end of the bearing beam (4).

3. The auxiliary device for calibrating the torque wrench as claimed in claim 2, wherein the first bearing plate (2) is provided with a first through hole (21) for passing the anchor rod (9), and the second bearing plate (3) is provided with a U-shaped notch (31).

4. The auxiliary device for calibrating the torque wrench as claimed in claim 3, wherein the number of the carrier beams (4) is two, the two carrier beams (4) are arranged at intervals, and a channel for the anchor rod (9) to pass through is formed between the two carrier beams (4).

5. The auxiliary device for calibrating torque wrench as claimed in claim 1, further comprising a positioning angle iron (5), one side of the positioning angle iron (5) is fixed on the outer sidewall of the bearing plate.

6. The auxiliary device for calibrating the torque wrench as claimed in any one of claims 1 to 5, wherein the base comprises a first beam seat and a second beam seat which are oppositely designed, and the first beam seat and the second beam seat are connected end to form a rectangular structure; the bearing plate is fixed on the first beam seat or the second beam seat which are arranged oppositely.

7. The auxiliary device for calibrating torque wrench as claimed in claim 6, wherein the first beam seat or the second beam seat is fixedly provided with a lifting lug (8).

8. The utility model provides a torque wrench calibration structure, characterized in that, includes jack (10), stock (9), nut (11), auxiliary device and torque wrench (12), auxiliary device adopts the auxiliary device of calibration torque wrench of any one of claims 1 ~ 7, passageway and hole on the auxiliary device are passed to stock (9), the one end at stock (9) is fixed to jack (10), nut (11) screw-thread fit is at the other end of stock (9), torque wrench (12) overlaps on nut (11) through the hexagonal box.

9. The torque wrench calibration structure according to claim 8, further comprising a backing plate (1), wherein the backing plate (1) is disposed on the outer sidewall of the bearing plate, the lower end of the backing plate is positioned on the positioning angle iron (5), and a second through hole is disposed on the backing plate (1), and the second through hole is concentric with the hole on the bearing plate.