CN2588354Y

CN2588354Y - Torsion testing instrument

Info

Publication number: CN2588354Y
Application number: CN 02255389
Authority: CN
Inventors: 邱文平
Original assignee: DONGXING GROUP
Current assignee: DONGXING GROUP
Priority date: 2002-11-21
Filing date: 2002-11-21
Publication date: 2003-11-26
Anticipated expiration: 2012-11-21

Abstract

The utility model relates to a measuring instrument for torque measurement, which aims to solve the technical problem that in the background art, the existing practical instrument can not measure the torque. The utility model has the technical proposal that a torsion shaft is fixed with a grooved wheel on which a hanging rope connected with an upper grip of a traction force experimental machine is wound; both sides of the grooved wheel are respectively provided with a bearing positioned in a bearing seat on an instrument frame, and a bearing cap fixed on the instrument frame by a fastening bolt is arranged on the bearing; the left end of a shaft is provided with a pointer which forms a torsion angle indicating mechanism with a graduated disk and a table ring; the right end of the torsion shaft is provided with a square shaft on which a circular movable hanging disk of which the central hole is a square hole; the central hole of the right top end of the shaft is a screw hole of a replaceable twisting mandrel; the instrument frame is provided with two fixed hanging rods of which the positions can be moved up and down; a machine frame is provided with two bolt holes of which the positions are symmetrical and the bolt holes are provided with changeable connecting rods which are connected with a lower grip of the traction force experimental machine. The utility model can be used for the accurate measurement of various kinds of torque.

Description

A kind of torque tester

Technical field: the utility model belongs to a kind of surveying instrument, particularly a kind of a kind of surveying instrument to torsion-testing.

Background technology: in commercial production, project installation and scientific experiment, often need test to moment of torsion.For example: torsionspring, turn round stage clip and dial torque wrench etc.But the practical instrument of still not having the test moment of torsion at present satisfies the needs under the unexpectedly various situations.

Summary of the invention: technical problem to be solved in the utility model is exactly the practical instrument of still not having the test moment of torsion at present that background technology exists, and satisfies the needs under the unexpectedly various situations.Solving this technical problem the technical scheme that is adopted is: a kind of torque tester, it is characterized in that being fixed with on the torsion shaft sheave, be wound with the lanyard that is connected with pulling experiment machine upper grip on the sheave, a bearing that is positioned at the instrument stand top chock is respectively installed in the both sides of sheave, which is provided with by trip bolt and be fixed on bearing cap on the instrument stand, the axle left end is installed pointer and is constituted windup-degree indicating mechanism with index dial and table circle, the torsion shaft right-hand member is a square shaft, mounting center hole is the circular moving hanging disk of square hole on it, the right top of axle center pit is the interchangeable screw hole that reverses mandrel, two position fixedly pegs moving up and down are set on the instrument stand, offer the bolt hole of two position symmetries on the frame and dispose removable connecting link, connecting link is connected with pulling experiment machine lower chuck.Wherein, lanyard can be replaced with tooth bar or chain, and replaces sheave with gear or sprocket wheel; Several hanging points distribute on the moving hanging disk.The beneficial effect that the utility model and background technology comparison are had is: owing to adopt technique scheme, at first select during use suitable reverse mandrel and it is installed on the rib-loop hole of torsion shaft right-hand member, again spring is set on the mandrel, turning round arm with one is stuck in fixedly on the peg, another is turned round arm and hangs over (many hanging points are symmetrically distributed on the moving hanging disk) on the suitable hanging point of moving hanging disk, when on selected hanging point and the moving hanging disk turn round arm contact the time, the adjustment form astragal moves index dial, make with pointer that torsion shaft directly links to each other and refer to " 0 ", use the experimental machine imposed load then, lanyard drives sheave and torsion shaft rotates, rotation produces certain moment of torsion thereby torsion shaft drives moving hanging disk, when turning to predetermined angular (this angle is read by index dial), this moment, experimental machine load was F, and the moment of torsion M that then moment of torsion produced is: M=Fr (r is the sheave radius).Can measure the moment of torsion under the various situations so easily and accurately, satisfy various needs torsion-testing.

Description of drawings: Fig. 1 is a structural representation of the present utility model.Fig. 2 is the left view of Fig. 1.

Embodiment: with reference to figure 1, Fig. 2, a kind of torque tester, be fixed with sheave 10 on the torsion shaft 8, be wound with the lanyard 3 that is connected with pulling experiment machine upper grip on the sheave 10, a bearing 9 that is positioned at instrument stand 5 top chocks is respectively installed in the both sides of sheave 10, which is provided with by trip bolt 13 and be fixed on bearing cap 11 on the instrument stand 5, the axle left end is installed pointer 2 and is constituted windup-degree indicating mechanism with index dial 1 and table circle 12, torsion shaft 8 right-hand members are square shaft, mounting center hole is a square hole on it, and the circular moving hanging disk 7 of some hanging points that distribute, the right top of axle center pit is the interchangeable screw hole that reverses mandrel 6, the fixedly peg 4 of square-section moving up and down, two positions is set on the instrument stand 5, offer the bolt hole of two position symmetries on the frame 5 and dispose removable connecting link 14, connecting link 14 is connected with pulling experiment machine lower chuck.

Claims

1, a kind of torque tester, it is characterized in that being fixed with on the torsion shaft (8) sheave (10), be wound with the lanyard (3) that is connected with pulling experiment machine upper grip on the sheave (10), a bearing (9) that is positioned at instrument stand (5) top chock is respectively installed in the both sides of sheave (10), which is provided with by trip bolt (13) and be fixed on bearing cap (11) on the instrument stand (5), the axle left end is installed pointer (2) and is constituted windup-degree indicating mechanism with index dial (1) and table circle (12), torsion shaft (8) right-hand member is a square shaft, mounting center hole is the circular moving hanging disk (7) of square hole on it, the right top of axle center pit is the interchangeable screw hole that reverses mandrel (6), two position fixedly pegs moving up and down (4) are set on the instrument stand (5), offer the bolt hole of two position symmetries on the frame (5) and dispose removable connecting link (14), connecting link (14) is connected with pulling experiment machine lower chuck.

2, according to the described a kind of torque tester of claim 1, it is characterized in that lanyard (3) with the displacement of tooth bar or chain, and with gear or sprocket wheel displacement sheave.

3,, it is characterized in that the upward some hanging points of distribution of moving hanging disk (7) according to claim 1 or 2 described a kind of torque testers.