CN103411721B - Bolt torque detection device - Google Patents
Bolt torque detection device Download PDFInfo
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- CN103411721B CN103411721B CN201310319526.1A CN201310319526A CN103411721B CN 103411721 B CN103411721 B CN 103411721B CN 201310319526 A CN201310319526 A CN 201310319526A CN 103411721 B CN103411721 B CN 103411721B
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Abstract
A bolt torque detection device is characterized in that a rack slides up and down in the vertical direction on a rack base, wherein the rack is supported by the rack base to rotate around a horizontal line, the rack is coaxially connected with a rotating sleeve, and a tension tester is in transmission connected with the rack and drives the rack to slide; a head chuck is placed in a head supporting base hole to limit rotation of the head chuck around the horizontal line and relative to the head supporting base; rotation of a bolt head around the horizontal line and relative to the head chuck is limited; rotation of a nut chuck around the horizontal line and relative to the rotating sleeve and translation of the nut chuck along the horizontal line are limited; rotation of a nut around the horizontal line and relative to the nut chuck is limited; the nut and the bolt head are the same in height; the head supporting base is provided with a back cap hole, the end of a back cap stretches into the head supporting base hole to abut against the head chuck and the bolt head of a bolt in the head chuck, and leftward movement of the bolt head along the horizontal line and rotation of the bolt head around the horizontal line are limited. The bolt torque detection device is practical, precise, intuitive, rapid, convenient to use and low in cost and price.
Description
Technical field
The present invention relates to a kind of torque detecting apparatus, be specially a kind of bolt torque detection device.
Background technology
Bolt, see Fig. 6, generally has hexagonal bolt head 34, and the cylindrical or square bar shape screw rod 35 be connected with bolt head 34, and screw rod 35 also has thread segment 36 away from the part of bolt head 34.Bolt is widely used in building, mechanical engineering, railway, boats and ships, wind-power electricity generation, air transportation etc. industry.Moment of torsion is the important test item of bolt.Moment of torsion detection at present for bolt class part mainly adopts torque force testing instrument (also to claim torque spanner, torsion can be applied, torque value can be demonstrated for monitoring) simultaneously, by manual type, the bolt head of tested bolt is fixed on bench vice, screw rod end torque spanner exerts a force, make screw rod produce the torsion around screw axis certain angle relative to fixing bolt head, obtain required moment of torsion according to the torque value that torque spanner shows.In addition, a kind of mode surveying bolt torque is also had to be fixed on the fixed chuck of Test of Friction machine by the bolt head of tested bolt, screw rod end is arranged on the rotary chuck of Test of Friction machine, make bolt produce the torsion around screw axis certain angle relative to fixing bolt head, the display torque value according to Test of Friction machine obtains required moment of torsion.The feature that front a kind of mode has simply, quick, expense is few, but there is the shortcomings such as error is comparatively large, torsion acceleration difficulty controls, labour intensity is large.Although rear a kind of mode is measured accurately, data are complete, intuitively credible, Test of Friction machine price is extremely expensive, and function singleness, only to survey friction factor and moment of torsion when bolt rotates, input-output ratio is little.
Summary of the invention
The invention provides a kind of bolt torque detection device, practical, accurate, directly perceived, quick, expense is few simultaneously, and price is low.
For achieving the above object, the technical solution used in the present invention is: a kind of bolt torque detection device, comprise support, described support is installed with head supporting seat, pinion stand and tooth bar seat, described pick-up unit also comprises head chuck, nut chuck, turning set, nut, tension tester, gear, tooth bar and back of the body cap;
Described tooth bar vertically slides up and down on tooth bar seat, gear rotates around horizontal line, the coaxial connection of rotating cover of gear, gear and tooth bar engagement through pinion stand supporting, the tension tester tooth bar that is in transmission connection slides to drive tooth bar, and driven gear and turning set rotate;
Described head supporting seat offers the head that is connected and support bore and head chuck compresses screw hole, described head chuck is inserted head and is supported in bore, head chuck to compress in screw hole after rigging screw, this screw end stretches into head and supports against head chuck in bore, and restriction head chuck opposing headers supporting seat is around horizontal rotation; Described head chuck is offered bolt head mating hole, bolt shaft to be measured is to level, and its bolt head is inserted in bolt head mating hole, and the shape via bolt head and bolt head mating hole limits, and bolt head opposing headers chuck is restricted around horizontal rotation;
Described turning set is offered the rotation grooving that is connected and nut chuck compresses screw hole, nut chuck is inserted and is rotated in grooving, nut chuck to compress in screw hole after rigging screw, this screw end stretches into rotates against nut chuck in grooving, and restriction nut chuck relatively rotates cover around horizontal rotation with along horizontal translation; Nut chuck is offered nut collet bore, in nut embedding nut collet bore, also nut collet bore is along horizontal line sliding contact relatively, and the shape via nut and nut collet bore limits, and nut is restricted around horizontal rotation relative to nut chuck; Nut is consistent with bolt head mating hole height, to make the thread segment of bolt to be measured stretch in nut, and nut and thread segment threaded engagement;
Described head supporting seat offers cap opening, this cap opening and head support bore and are communicated with, described back of the body cap is fixed on head supporting seat through cap opening, the end of back of the body cap is stretched into head and is supported in bore, the bolt head of bolt in head chuck and head chuck, restriction bolt head to be moved to the left and around horizontal rotation along horizontal.
Related content in technique scheme is explained as follows:
1, in such scheme, described " left and right " determines relative to the angle of Figure of description and Figure of abstract.
2, in such scheme, described head chuck has a head chuck plane, or offer head chuck stopper slot, head chuck to compress in screw hole after rigging screw, this screw end is pressed in head chuck plane, or insert in head chuck stopper slot, to limit head chuck opposing headers supporting seat around horizontal rotation.
3, in such scheme, described nut chuck is hollow cylindrical structure, this cylinder axis is to level, rotating grooving is the cylindrical groove matched with nut chuck, nut chuck offers nut chuck locating slot perpendicular to cylindrical center's axis direction, the screw end of assembling in screw hole that compresses nut chuck stretches in nut chuck locating slot, relatively rotates cover around horizontal rotation with along horizontal translation to limit nut chuck.
4, in such scheme, described back of the body cap is provided with external thread, and the cap opening on described head supporting seat is internal thread hole, and back of the body cap coordinates in precession cap opening through thread connection, is fixed on head supporting seat to make back of the body cap.
5, in such scheme, described head supporting seat offers screw and elongated slot is installed, this screw installs elongated slot flute length horizontally, rigging screw in elongated slot installed by screw, in order to be fixed on support by dismountable for head supporting seat, unloads the screw in screw installation elongated slot, change head supporting seat relative to after the horizontal range of turning set, again screw is arranged on the diverse location in screw installation elongated slot, head supporting seat is fixed, namely can adapt to the detection of the bolt to different length specification.
6, in such scheme, described tension tester is electro-hydraulic servo tension tester.
7, in such scheme, described tension tester is provided with slide block, and this slide block connects pressure head, and this pressure head contacts with tooth bar, slides to drive tooth bar.
8, in such scheme, described turning set offers the turning set through hole be communicated with nut collet bore, the axial level of turning set through hole, bolt thread section in the corresponding nut collet bore in aperture, the bolt head of the corresponding bolt in described cap opening aperture, cap opening size is greater than the size of bolt head, unscrew head chuck and compress screw in screw hole, unscrew nut chuck and compress screw in screw hole, push rod is used to stretch into Level Promoting bolt in turning set through hole, nut on the thread segment of bolt and thread segment is pushed out from nut collet bore, rotate from thread segment and take off nut, and bolt head also leaves bolt head mating hole and cap opening, continue to promote bolt, bolt is released from cap opening, complete discharging, when installing bolt, the thread segment of bolt being pushed from cap opening, being pushed into after thread segment stretches out from bolt head mating hole, thread segment screws on nut, and continue to promote, thread segment enters in nut chuck together with nut, now the bolt head of bolt enters in bolt head mating hole, completes charging.
9, in such scheme, described pick-up unit also comprises bar portion supporting seat and bar portion briquetting, described bar portion briquetting comprises the upper holder block of strip and the lower lock block of strip, upper holder block offers upper holder block groove, lower lock block offers lower lock block groove, upper holder block and lower lock block involutory after, the screw rod of upper holder block groove and the corresponding fishbolt of lower lock block groove, bar portion briquetting left end is inserted head and is supported in bore, head supporting seat also offers and to support the bar portion briquetting left end that bore is communicated with head and compress screw hole, bar portion briquetting left end to compress in screw hole after rigging screw, this screw end stretches into head and supports in bore, against the left end of bar portion briquetting, with limit rod portion briquetting left end opposing headers supporting seat around horizontal rotation, described bar portion supporting seat offers the bar portion that is connected and support bore and bar portion briquetting right-hand member compresses screw hole, bar portion briquetting right-hand member is inserted bar portion and is supported in bore, bar portion briquetting right-hand member compresses rigging screw in screw hole, this screw end stretches into bar portion and supports in bore, against the right-hand member of bar portion briquetting, limit rod portion briquetting right-hand member rotates around horizontal relative to bar portion supporting seat, bar portion briquetting level is less than bolt length to length, after stretching out, then stretches in nut to make the thread segment of bolt from bar portion briquetting.
Further, described turning set offers the turning set through hole be communicated with nut collet bore, the axial level of turning set through hole, the bolt thread section in the corresponding nut collet bore in aperture, the bolt head of the corresponding bolt in described cap opening aperture, cap opening size is greater than the size of bolt head, the level interval of bar portion supporting seat and nut chuck is greater than the thickness of nut, unscrew head chuck and compress screw in screw hole, unscrew nut chuck and compress screw in screw hole, unscrew bar portion briquetting right-hand member and compress screw in screw hole, unscrew bar portion briquetting left end and compress screw in screw hole, push rod is used to stretch into Level Promoting bolt in turning set through hole, nut on the thread segment of bolt and thread segment is released by from nut collet bore, when nut enters in the gap of bar portion supporting seat and nut chuck, reverse rotation nut, continuation with thread segment is moved, thread segment departs from from nut, thread segment is pushed the upper holder block after involutory and lower lock block, bolt head pushed away from bolt head mating hole and cap opening simultaneously, continue to promote bolt to depart from from cap opening to bolt, complete discharging, when installing bolt, the thread segment of bolt is pushed from cap opening, thread segment is after bolt head mating hole and involutory upper holder block and lower lock block, walk to the gap of bar portion supporting seat and nut chuck, and nut is placed in this gap location, advance by nut rotation set on thread segment with thread segment, thread segment enters in nut chuck together with nut, now the bolt head of bolt enters in bolt head mating hole, completes charging.
Principle of work of the present invention is: loaded by the bolt head of bolt to be measured in bolt head mating hole in head chuck, bolt head and relatively rotating of head chuck are restricted, the upper holder block of bar portion briquetting and lower lock block push down the screw rod of bolt, screw flight section part is emerged from bar portion briquetting right-hand member, head chuck is inserted in head supporting seat together with bolt head, again bar portion briquetting left end is also inserted in head supporting seat, bar portion briquetting right-hand member is inserted in bar portion supporting seat, by nut rotation set in screw flight section, nut is inserted in nut chuck together with screw flight section part, nut horizontal sliding enters in nut collet bore, restriction nut and the relatively rotating of nut chuck, the relative nut collet bore of nut is along horizontal line sliding contact, to make nut when threadingly section rotates, relative to the translation of nut chuck, then, the head chuck of tightening on head supporting seat compresses the screw in screw hole, the bar portion briquetting left end tightened on head supporting seat compresses the screw in screw hole, the bar portion briquetting right-hand member tightened on bar portion supporting seat compresses the screw in screw hole, the nut chuck tightened on turning set compresses the screw in screw hole, screw back of the body cap, tension tester loads and detects, the pressure head of tension tester is to tooth bar load application, slowly rotate through gear driven turning set, the nut chuck in turning set and nut is driven to rotate around horizontal line, and nut is also moving linearly towards bolt head direction relative to nut chuck while rotation, until reach the windup-degree of setting or the load value of regulation, complete rear slider to return, the state of the bolt that observable detects during shutdown, print data and the curve etc. of computer display, screw out back of the body cap, unscrew and respectively compress screw, screw off nut, take out the bolt detected, detect and terminate.The shift value that can will the torsion angle values measured be needed to be converted to slide block, and by computer, the pressure head on correct detection device slide block and the mutual alignment of tooth bar of this shift value, loading speed input tension tester.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, pick-up unit of the present invention utilizes the slide block of tension tester to become to the thrust that tooth bar applies the torsion that tested bolt bears, and converts and depict test figure and parametric line, as angular displacement, moment of torsion, torque peak and angular displacement during destruction, loading speed, load time, force-displacement relationship figure etc., accurately can describe the elastic deformation of bolt when bearing torsional interaction, the plastic yield even situation in rupture failure stage, also can by changing loading speed, displacements etc. demonstrate the process of the deformation and failure of bolt under different loading environment, overcome conventional employing manpower inaccurate with the loading measuring torque value mode and exist to reverse bolt by torque spanner, loading speed is unstable, labour intensity is large, the defects such as moment of torsion when cannot describe bolt distortion or destroy and angular displacement relation, and compared with Test of Friction machine, drop into little, price is low, avoids the huge input of Test of Friction machine widely, significantly improves the cost performance of checkout equipment.
2, the present invention is by changing head chuck and the nut chuck (the equal adjustable of size of its appearance or internal openings) of different size, can detect the bolt of different size, easy to use and flexible.
3, torque peak and angular displacement, loading speed, load time, force-displacement relationship figure etc. when the present invention can test the angular displacement of screw rod relative to bolt head of bolt, moment of torsion, destruction, when after installing bar portion supporting seat, larger to the clamping force of the screw rod of bolt to be measured, can simulate bolt embedment testing by torsion state in concrete on such as railroad track, detected torque data can be used for the service condition and quality etc. that judge bolt.
Accompanying drawing explanation
Fig. 1 is the phantom view of a kind of bolt torque detection device first of the present invention embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cut-open view of Fig. 1;
Fig. 4 is the cut-open view of the turning set in Fig. 1;
Fig. 5 is the front view of the head chuck in Fig. 1;
Fig. 6 is the front view of the nut chuck in Fig. 1;
Fig. 7 by Fig. 1 the front view of detection bolt;
Fig. 8 is the phantom view of a kind of bolt torque detection device second of the present invention embodiment discharging state.
In above accompanying drawing: 1. support; 2. head supporting seat; 3. head chuck; 4. bar portion supporting seat; 5. nut chuck; 6. turning set; 7. nut; 8. bar portion briquetting; 9. tension tester; 10. gear; 11. tooth bars; 12. head chuck planes; 13. bolt head mating hole; 14. heads support bore; 15. head chuck compress screw hole; 16. bar portions support bore; 17. bar portion briquetting right-hand members compress screw hole; 18. upper holder blocks; 19. lower lock blocks; 20. bar portion briquetting left ends compress screw hole; 21. rotate grooving; 22. nut chucks compress screw hole; 23. nut collet bore; 24. nut chuck locating slots; 25. back of the body caps; 26. cap openings; Elongated slot installed by 27. screws; 28. slide blocks; 29. pressure heads; 30. pinion stands; 31. tooth bar seats; 32. turning set through holes; 33. push rods; 34. bolt heads; 35. screw rods; 36. thread segments.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment one: shown in Fig. 1 ~ 7, a kind of bolt torque detection device, comprise support 1, described support 1 is installed with head supporting seat 2, pinion stand 30 and tooth bar seat 31, described pick-up unit also comprises head chuck 3, nut chuck 5, turning set 6, nut 7, tension tester 9, gear 10, tooth bar 11 and back of the body cap 25;
Described tooth bar 11 vertically slides up and down on tooth bar seat 31, gear 10 supports through pinion stand 30 and rotates around horizontal line, the coaxial connection of rotating cover 6 of gear 10, gear 10 and tooth bar 11 engage, tension tester 9 tooth bar 11 that is in transmission connection slides to drive tooth bar 11, and driven gear 10 and turning set 6 rotate;
Described head supporting seat 2 offers the head that is connected and support bore 14 and head chuck compresses screw hole 15, described head chuck 3 is inserted head and is supported in bore 14, head chuck to compress in screw hole 15 after rigging screw, this screw end stretches into head and supports against head chuck 3 in bore 14, and restriction head chuck 3 opposing headers supporting seat 2 is around horizontal rotation; Described head chuck 3 offers bolt head mating hole 13, bolt shaft to be measured is to level, its bolt head 34 is inserted in bolt head mating hole 13, limits, bolt head 34 opposing headers chuck 3 is restricted around horizontal rotation via the shape of bolt head 34 with bolt head mating hole 13;
Described turning set 6 offers the rotation grooving 21 be connected and nut chuck compresses screw hole 22, nut chuck 5 is inserted and is rotated in grooving 21, nut chuck to compress in screw hole 22 after rigging screw, this screw end stretches into rotates against nut chuck 5 in grooving 21, and restriction nut chuck 5 relatively rotates cover 6 around horizontal rotation with along horizontal translation; Nut chuck 5 is offered nut collet bore 23, nut 7 to embed in nut collet bore 23 and relatively nut collet bore 23 along horizontal line sliding contact, limit via the shape of nut 7 with nut collet bore 23, nut 7 is restricted around horizontal rotation relative to nut chuck 5; Nut 7 is highly consistent with bolt head mating hole 13, to make the thread segment 36 of bolt to be measured stretch in nut 7, and nut 7 and thread segment 36 threaded engagement;
Described head supporting seat 2 offers cap opening 26, this cap opening 26 and head support bore 14 and are communicated with, described back of the body cap 25 is fixed on head supporting seat 2 through cap opening 26, the end of back of the body cap 25 is stretched into head and is supported bolt head 34 against bolt in head chuck 3 and head chuck 3 in bore 14, and restriction bolt head 34 to be moved to the left and around horizontal rotation along horizontal.Its bolt head of bolt (34) detected may be sexangle, end face may be plane, also circular trough, in-line groove, cross bath, hexagonal hole etc. may be offered, the boss mated with circular trough, in-line groove, cross bath, hexagonal hole etc. can be provided with at back of the body cap 25 inserting end, boss embeds in circular trough, in-line groove, cross bath, hexagonal hole, bolt head 34 can be limited around horizontal rotation, also can be only by the friction force effect between back of the body cap 25 inserting end and bolt head (34) planar end, and limit bolt head 34 around horizontal rotation.
Described pick-up unit also comprises bar portion supporting seat 4 and bar portion briquetting 8, described bar portion briquetting 8 comprises the upper holder block 18 of strip and the lower lock block 19 of strip, upper holder block 18 offers upper holder block groove, lower lock block 19 offers lower lock block groove, after upper holder block 18 is involutory with lower lock block 19, the screw rod 35 of upper holder block groove and the corresponding fishbolt of lower lock block groove, bar portion briquetting 8 left end is inserted head and is supported in bore 14, head supporting seat 2 also offers and to support the bar portion briquetting left end that bore 14 is communicated with head and compress screw hole 20, bar portion briquetting left end to compress in screw hole 20 after rigging screw, this screw end stretches into head and supports in bore 14, against the left end of bar portion briquetting 8, with limit rod portion briquetting 8 left end opposing headers supporting seat 2 around horizontal rotation.Upper holder block groove on upper holder block 18 and the lower lock block groove on lower lock block 19, can be V-shaped groove or square groove or deep-slotted chip breaker or its combination, this determines according to the screw configuration of bolt to be measured, as long as can clamp the screw rod 35 of bolt when pressing bar portion's briquetting 8, limiting that it rotates can (screw rod 35 of bolt may be square bar, round bar or other shapes).
Described bar portion supporting seat 4 offers the bar portion that is connected and support bore 16 and bar portion briquetting right-hand member compresses screw hole 17, bar portion briquetting 8 right-hand member is inserted bar portion and is supported in bore 16, bar portion briquetting right-hand member compresses rigging screw in screw hole 17, this screw end stretches into bar portion and supports in bore 16, against the right-hand member of bar portion briquetting 8, limit rod portion briquetting 8 right-hand member rotates around horizontal relative to bar portion supporting seat 4; Bar portion briquetting 8 level is less than bolt length to length, after stretching out, then stretches in nut 7 to make the thread segment 36 of bolt from bar portion briquetting 8.
Described head chuck 3 has a head chuck plane 12, or offer head chuck stopper slot, head chuck to compress in screw hole 15 after rigging screw, this screw end is pressed in head chuck plane 12, or insert in head chuck stopper slot, to limit head chuck 3 opposing headers supporting seat 2 around horizontal rotation.
Head chuck 3 described in the present embodiment is square cylindricality, and axis of a cylinder is to level, and a side of this tetragonal prism forms described head chuck plane 12, and it is the square opening coordinated with tetragonal prism that the head on described head supporting seat 2 supports bore 14.In other example, head chuck 3 also can be triangle cylindricality, five side column shapes etc.
Described nut chuck 5 is hollow cylindrical structure, this cylinder axis is to level, rotating grooving 21 is the cylindrical groove matched with nut chuck 5, nut chuck 5 offers nut chuck locating slot 24 perpendicular to cylindrical center's axis direction, the screw end that nut chuck compresses assembling in screw hole 22 stretches in nut chuck locating slot 24, relatively rotates cover 6 around horizontal rotation with along horizontal translation to limit nut chuck 5.
Described back of the body cap 25 is provided with external thread, and the cap opening 26 on described head supporting seat 2 is internal thread hole, and back of the body cap 25 coordinates in precession cap opening 26 through thread connection, is fixed on head supporting seat 2 to make back of the body cap 25.
Described head supporting seat 2 offers screw and elongated slot 27 is installed, this screw installs elongated slot 27 flute length horizontally, rigging screw in elongated slot 27 installed by screw, in order to be fixed on support 1 by dismountable for head supporting seat 2, unload the screw in screw installation elongated slot 27, after changing the horizontal range of head supporting seat 2 relative to turning set 6, then screw is arranged on the diverse location in screw installation elongated slot 27, head supporting seat 2 is fixed, namely can adapt to the detection of the bolt to different length specification.
Described tension tester 9 is electro-hydraulic servo tension tester.
Described tension tester 9 is provided with slide block 28, and this slide block 28 connects pressure head 29, and this pressure head 29 contacts with tooth bar 11, slides to drive tooth bar 11.
Embodiment two: shown in Figure 8, a kind of bolt torque detection device, basic structure is identical with embodiment one, also comprises bar portion supporting seat 4 and bar portion briquetting 8, turning set 6 offers the turning set through hole 32 be communicated with nut collet bore 23, the axial level of turning set through hole 32, bolt thread section 36 in the corresponding nut collet bore 23 in aperture, the bolt head 34 of the corresponding bolt in described cap opening 26 aperture, cap opening 26 size is greater than the size of bolt head 34, bar portion supporting seat 4 is greater than the thickness of nut 7 with the level interval of nut chuck 5, unscrew head chuck and compress screw in screw hole 15, unscrew nut chuck and compress screw in screw hole 22, unscrew bar portion briquetting right-hand member and compress screw in screw hole 17, unscrew bar portion briquetting left end and compress screw in screw hole 20, push rod 33 is used to stretch into Level Promoting bolt in turning set through hole 32, nut 7 on the thread segment 36 of bolt and thread segment 36 is released by from nut collet bore 23, time in the gap that nut 7 enters bar portion supporting seat 4 and nut chuck 5, reverse rotation nut 7, continuation with thread segment 36 is moved, thread segment 36 departs from from nut 7, thread segment 36 is pushed the upper holder block after involutory 18 and lower lock block 19, bolt head 34 pushed away from bolt head mating hole 13 and cap opening 26 simultaneously, continue to promote bolt to depart from from cap opening 26 to bolt, complete discharging, when installing bolt, the thread segment 36 of bolt is pushed from cap opening 26, thread segment 36 is after bolt head mating hole 13 and involutory upper holder block 18 and lower lock block 19, walk to the gap of bar portion supporting seat 4 and nut chuck 5, and nut 7 is placed in this gap location, advance by nut 7 rotation set on thread segment 36 with thread segment 36, thread segment 36 enters in nut chuck 5 together with nut 7, now the bolt head 34 of bolt enters bolt head mating hole 13 li, completes charging.This scheme only need be unscrewed and respectively compressed screw and just the bolt of detection can be taken off, then puts into new bolt and detect, very convenient.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. a bolt torque detection device, comprise support (1), it is characterized in that: described support (1) is installed with head supporting seat (2), pinion stand (30) and tooth bar seat (31), described pick-up unit also comprises head chuck (3), nut chuck (5), turning set (6), nut (7), tension tester (9), gear (10), tooth bar (11) and back of the body cap (25);
Described tooth bar (11) vertically slides up and down on tooth bar seat (31), gear (10) rotates around horizontal line through pinion stand (30) supporting, the coaxial connection of rotating cover (6) of gear (10), gear (10) and tooth bar (11) engagement, tension tester (9) tooth bar (11) that is in transmission connection slides to drive tooth bar (11), and driven gear (10) and turning set (6) rotate;
Described head supporting seat (2) offers the head that is connected and support bore (14) and head chuck compresses screw hole (15), described head chuck (3) is inserted head and is supported in bore (14), after head chuck compresses the middle rigging screw of screw hole (15), this screw end stretches into head and supports against head chuck (3) in bore (14), and restriction head chuck (3) opposing headers supporting seat (2) is around horizontal rotation; Described head chuck (3) is offered bolt head mating hole (13), bolt shaft to be measured is to level, its bolt head (34) is inserted in bolt head mating hole (13), limit via the shape of bolt head (34) with bolt head mating hole (13), bolt head (34) opposing headers chuck (3) is restricted around horizontal rotation;
Described turning set (6) is offered the rotation grooving (21) that is connected and nut chuck compresses screw hole (22), nut chuck (5) is inserted and is rotated in grooving (21), after nut chuck compresses the middle rigging screw of screw hole (22), this screw end stretches into rotates against nut chuck (5) in grooving (21), and restriction nut chuck (5) relatively rotates cover (6) around horizontal rotation with along horizontal translation; Nut chuck (5) is offered nut collet bore (23), nut (7) to embed in nut collet bore (23) and relatively nut collet bore (23) along horizontal line sliding contact, limit via the shape of nut (7) with nut collet bore (23), nut (7) is restricted around horizontal rotation relative to nut chuck (5); Nut (7) is highly consistent with bolt head mating hole (13), to make the thread segment of bolt to be measured (36) stretch in nut (7), and nut (7) and thread segment (36) threaded engagement;
Described head supporting seat (2) offers cap opening (26), this cap opening (26) and head support bore (14) and are communicated with, described back of the body cap (25) is fixed on head supporting seat (2) through cap opening (26), the end of back of the body cap (25) is stretched into head and is supported in bore (14), the bolt head (34) of bolt in head chuck (3) and head chuck (3), restriction bolt head (34) to be moved to the left and around horizontal rotation along horizontal;
Described pick-up unit also comprises bar portion supporting seat (4) and bar portion briquetting (8);
Described bar portion briquetting (8) comprises the upper holder block (18) of strip and the lower lock block (19) of strip, (18) offer upper holder block groove to upper holder block, (19) offer lower lock block groove to lower lock block, after upper holder block (18) is involutory with lower lock block (19), the screw rod (35) of upper holder block groove and the corresponding fishbolt of lower lock block groove, bar portion briquetting (8) left end is inserted head and is supported in bore (14), head supporting seat (2) also offers and to support the bar portion briquetting left end that bore (14) is communicated with head and compress screw hole (20), after bar portion briquetting left end compresses the middle rigging screw of screw hole (20), this screw end stretches into head and supports in bore (14), against the left end in bar portion briquetting (8), with limit rod portion briquetting (8) left end opposing headers supporting seat (2) around horizontal rotation,
Described bar portion supporting seat (4) offers the bar portion that is connected and support bore (16) and bar portion briquetting right-hand member compresses screw hole (17), bar portion briquetting (8) right-hand member is inserted bar portion and is supported in bore (16), bar portion briquetting right-hand member compresses rigging screw in screw hole (17), this screw end stretches into bar portion and supports in bore (16), against the right-hand member in bar portion briquetting (8), limit rod portion briquetting (8) right-hand member rotates around horizontal relative to bar portion supporting seat (4); Bar portion briquetting (8) level is less than bolt length to length, after stretching out, then stretches in nut (7) to make the thread segment of bolt (36) from bar portion briquetting (8).
2. bolt torque detection device according to claim 1, it is characterized in that: described head chuck (3) has a head chuck plane (12), or offer head chuck stopper slot, after head chuck compresses the middle rigging screw of screw hole (15), this screw end is pressed in head chuck plane (12), or insert in head chuck stopper slot, to limit head chuck (3) opposing headers supporting seat (2) around horizontal rotation.
3. bolt torque detection device according to claim 1, it is characterized in that: described nut chuck (5) is hollow cylindrical structure, this cylinder axis is to level, rotating grooving (21) is the cylindrical groove matched with nut chuck (5), nut chuck (5) offers nut chuck locating slot (24) perpendicular to cylindrical center's axis direction, the screw end that nut chuck compresses assembling in screw hole (22) stretches in nut chuck locating slot (24), cover (6) is relatively rotated around horizontal rotation with along horizontal translation to limit nut chuck (5).
4. bolt torque detection device according to claim 1, it is characterized in that: described back of the body cap (25) is provided with external thread, cap opening (26) on described head supporting seat (2) is internal thread hole, back of the body cap (25) coordinates in precession cap opening (26) through thread connection, is fixed on head supporting seat (2) to make back of the body cap (25).
5. bolt torque detection device according to claim 1, is characterized in that: described tension tester (9) is electro-hydraulic servo tension tester.
6. bolt torque detection device according to claim 1, it is characterized in that: described tension tester (9) is provided with slide block (28), this slide block (28) connects pressure head (29), this pressure head (29) contacts with tooth bar (11), slides to drive tooth bar (11).
7. bolt torque detection device according to claim 1, it is characterized in that: described turning set (6) offers the turning set through hole (32) be communicated with nut collet bore (23), turning set through hole (32) axial level, bolt thread section (36) in corresponding nut collet bore (23) in aperture, the bolt head (34) of the corresponding bolt in described cap opening (26) aperture, cap opening (26) size is greater than the size of bolt head (34), bar portion supporting seat (4) is greater than the thickness of nut (7) with the level interval of nut chuck (5), unscrew head chuck and compress screw in screw hole (15), unscrew nut chuck and compress screw in screw hole (22), unscrew bar portion briquetting right-hand member and compress screw in screw hole (17), unscrew bar portion briquetting left end and compress screw in screw hole (20), push rod (33) is used to stretch into Level Promoting bolt in turning set through hole (32), nut (7) on the thread segment (36) of bolt and thread segment (36) is released by from nut collet bore (23), time in the gap that nut (7) enters bar portion supporting seat (4) and nut chuck (5), reverse rotation nut (7), continuation with thread segment (36) is moved, thread segment (36) departs from from nut (7), thread segment (36) is pushed the upper holder block after involutory (18) and lower lock block (19), bolt head (34) pushed away from bolt head mating hole (13) and cap opening (26) simultaneously, continue to promote bolt to depart from from cap opening (26) to bolt, complete discharging, when installing bolt, the thread segment (36) of bolt is pushed from cap opening (26), thread segment (36) is after bolt head mating hole (13) and involutory upper holder block (18) and lower lock block (19), walk to the gap of bar portion supporting seat (4) and nut chuck (5), and nut (7) is placed in this gap location, advancing nut (7) rotation set on thread segment (36) with thread segment (36), thread segment (36) and nut (7) enter in nut chuck (5) together, now to enter bolt head mating hole (13) inner for the bolt head (34) of bolt, complete charging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310319526.1A CN103411721B (en) | 2013-07-26 | 2013-07-26 | Bolt torque detection device |
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| CN201310319526.1A CN103411721B (en) | 2013-07-26 | 2013-07-26 | Bolt torque detection device |
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| CN103411721A CN103411721A (en) | 2013-11-27 |
| CN103411721B true CN103411721B (en) | 2015-01-21 |
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