CN202631190U

CN202631190U - Moment wrench calibration instrument

Info

Publication number: CN202631190U
Application number: CN 201220286962
Authority: CN
Inventors: 刘剑; 刘转娥; 王偕偕
Original assignee: Xian Aircraft Design and Research Institute of AVIC
Current assignee: Xian Aircraft Design and Research Institute of AVIC
Priority date: 2012-06-18
Filing date: 2012-06-18
Publication date: 2012-12-26
Anticipated expiration: 2022-06-18

Abstract

The utility model relates to a moment wrench calibration instrument. The moment wrench calibration instrument disclosed by the utility model comprises an instrument main body and a stress application mechanism, wherein the instrument main body comprises a surface cover, a display, an instrument box, a moment sensor, a connector and an adapter; the moment wrench calibration instrument further comprises a guide rail; the guide rail is a long-strip-shaped object with a supporting leg; the guide rail is fixed to the instrument main body through a bolt; and the stress application mechanism comprises a handle, a U-shaped bracket, a screw rod, a nut push rod, a positioning block, a clamping plate and a butterfly-shaped nut. The moment wrench calibration instrument is fixedly arranged in the adapter through a calibrated wrench head; the screw rod is rotated and the positioning block applies a moment to the wrench handle to check a moment wrench; and the moment wrench calibration instrument has the advantages of simple structure, light equipment weight and measurement accuarcy, and is convenient to operate.

Description

The torque spanner tester

Technical field

The utility model relates to a kind of torque spanner tester, particularly a kind of tester that is used for outfield verification all size torque spanner.

Background technology

Torque spanner is the important attachment tools of aircraft configuration; Need periodic check in the use,, be inconvenient to deliver to legal metering mechanism of country and carry out verification because condition of external field is special; Therefore need to use special-purpose calibration equipment, realize torque spanner verification anywhere or anytime.The tester that adopts at present, its basic structure is formed by sensor, display and boosting mechanism three parts, but because of version is different, the poor accuracy of volume, weight and measurement is apart from bigger.This type tester has two kinds of structures usually, and the one, adopt the back-up wrench head, with the form of manpower to pinch bar loading moment of torsion, its volume is little, in light weight, but because the application of force is not steady, accuracy of measurement is low; The 2nd, adopt the back-up wrench handle, load the form of moment of torsion to driving end with boosting mechanism, boosting mechanism is made up of worm gear, worm screw, gear pair, and its accuracy is high, but manufacturing cost is high, volume is big, equipment is heavy, the use of inconvenient outfield.

The utility model content

The utility model technical matters to be solved is: the torque spanner tester that a kind of volume is little, in light weight, simple to operate, measurement is accurate and cheap is provided.

The technical scheme of the utility model is: the torque spanner tester; Comprise instrument box main body and boosting mechanism; Wherein the instrument box main body comprises face shield, display, instrument box, torque sensor, joint, adapter, and said torque spanner tester also comprises a guide rail; Guide rail is the long strip shape object of a band leg; Guide rail is fixed through bolt and instrument box main body; Boosting mechanism comprises handle, U type support, leading screw, nut push rod, locating piece, clamping plate, wing nut; Leading screw passes the nut push rod and cooperates with it; Leading screw passes U type support two ends, and leading screw one end is fixed through U type support, other end handle installation; U type support upper bottom surface is a plane, and bottom surface has a clamp system, and clamp system is made up of clamping plate and wing nut; Nut push rod bottom surface is a plane and cooperates with U type support bottom surface; Locating piece is the calotte that horizontal edge is arranged around; Locating piece is placed on nut push rod top and cooperates with it; Said boosting mechanism is installed on the guide rail through wing nut.

The utility model beneficial effect is: the utility model torque spanner tester compact conformation, and in light weight, the little and low cost of manufacture of volume, easy to operate, regulate flexibly, the result is accurate, is applicable to the verification of plurality of specifications torque spanner.

Description of drawings

Fig. 1 is a kind of embodiment structural representation of the utility model torque spanner tester;

Fig. 2 is a boosting mechanism synoptic diagram in a kind of embodiment of the utility model shown in Figure 1;

Wherein, 1-instrument box main body, 2-guide rail, 3-supporting leg, 4-boosting mechanism, 5-are by school spanner, 6-handle, 7-U type support, 8-leading screw, 9-nut push rod, 10-locating piece, 11-clamping plate, 12-bolt, 13-wing nut.

Embodiment

Below in conjunction with accompanying drawing the embodiment of the utility model is done further explanation.

See also Fig. 1, Fig. 2, Fig. 1 is a kind of embodiment structural representation of the utility model torque spanner tester, comprises instrument box main body 1, guide rail 2, supporting leg 3; Boosting mechanism 4, handle 6, U type support 7, leading screw 8; Nut push rod 9, locating piece 10, clamping plate 11, bolt 12 and wing nut 13.Wherein, said instrument box is the basis of torque spanner tester, and said face shield is installed in the instrument box upper forepart through bolt; Said display is installed in the anterior of instrument box and is positioned at facepiece interior; Said torque sensor is installed in the instrument box through bolt, and said joint is installed on the torque sensor, and said joint and torque sensor are coaxial; Said adapter is installed on the joint, and said adapter and joint are coaxial; Said guide rail 2 is installed in the left side of instrument box through bolt, and the below, end of said guide rail 2 is equipped with supporting leg 3, can guide rail 2 be adjusted to horizontal level; The clamping plate 11 of said boosting mechanism 4 bottoms are connected with U type support 7 through bolt 12, and said boosting mechanism 4 is fixed on the guide rail 2 through clamping plate 11 and wing nut 12, said boosting mechanism 4 can be on guide rail 2 any adjusting position; The assembling of said boosting mechanism 4, leading screw 8 are passed nut push rod 9 and are fixed with U type support 7 two ends, and said handle 6 is installed in an end of leading screw 8; Said locating piece 10 is placed on nut push rod 9 tops.

The utility model torque spanner tester drives leading screw 8 and rotates through rotary handle 6, and nut push rod 9 is along leading screw 8 rectilinear motions; Locating piece 10 promotes by school spanner 5 handles, gives by school spanner 5 and loads moment of torsion, and the sensor that is connected with driving end produces corresponding electric signal when receiving moment of torsion; Through amplifying; Analog-to-digital conversion shows on digital indicator at last, and this torque value is as the standard torque value; Through with by the moment of torsion indicating value of school spanner 5 relatively, just can extrapolate by the relative error of the torque value of school spanner 5.

The utility model torque spanner tester verification working routine is: at first regulate leg 3 and make the tester level, will be inserted in the adapter on instrument box top by 5 of school spanners, according to being regulated the position of boosting mechanism 4 on guide rail 2 by school spanner 5 decreased food; Tighten wing nut 13, boosting mechanism 4 is fixed on the guide rail 2, regulate the height of locating piece 10; Make by school spanner 5 maintenance levels, rotary handle 6 drives leading screw 8 rotations; Make nut push rod 9 axially do rectilinear motion along leading screw 8, locating piece 10 promotes by the rotation of school spanner 5 driving ends, and sensor receives moment of torsion output signal; Display demonstrates numerical value; When being reached preset value by school spanner 5 and skid, instant playback goes out the maximal value that torque spanner loads, and display demonstrates final numerical value through peak-value-holding function; Give numerical value as standard figures, can draw by the error of school spanner 5 through calculating.

The described display of the utility model torque spanner tester can be examined and determine into multiple moment unit and clockwise, counterclockwise two kinds of verification directions with sensor, can satisfy various verification needs.Described display can show that continuously, in real time tester loads torque value to torque spanner.

The utility model torque spanner tester gives pinch bar afterburning verification mode through the back-up wrench head with feed screw nut, makes the tester volume-diminished, and afterburner process is more steady, and measurement result is more accurate, has big actual application value.

Claims

1. torque spanner tester; Comprise instrument box main body and boosting mechanism; Wherein instrument box main body (1) comprises face shield, display, instrument box, torque sensor, joint, adapter, it is characterized by: said torque spanner tester also comprises a guide rail (2); Guide rail (2) is the long strip shape object of a band leg; Guide rail (2) is fixing through bolt and instrument box main body (1); Boosting mechanism (4) comprises handle (6), U type support (7), leading screw (8), nut push rod (9), locating piece (10), clamping plate (11), wing nut (13); Leading screw (8) passes nut push rod (9) and cooperates with it; Leading screw (8) passes U type support (7) two ends, and leading screw (8) one ends are fixing through U type support (7), other end handle installation (6); U type support (7) upper bottom surface is a plane, and bottom surface has a clamp system, and clamp system is made up of clamping plate (11) and wing nut (13); Nut push rod (9) bottom surface is a plane and cooperates with U type support (7) bottom surface; Locating piece (10) is the calotte that horizontal edge is arranged around; Locating piece (10) is placed on nut push rod (9) top and cooperates with it; Said boosting mechanism (4) is installed on the guide rail (2) through wing nut (13).