CN103411721A - Bolt torque detection device - Google Patents
Bolt torque detection device Download PDFInfo
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- CN103411721A CN103411721A CN2013103195261A CN201310319526A CN103411721A CN 103411721 A CN103411721 A CN 103411721A CN 2013103195261 A CN2013103195261 A CN 2013103195261A CN 201310319526 A CN201310319526 A CN 201310319526A CN 103411721 A CN103411721 A CN 103411721A
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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 pick-up unit.
Background technology
Bolt, referring to Fig. 6, generally have hexagonal bolt head 34, and the cylindrical or square bar shape screw rod 35 be connected with bolt head 34, and the part away from bolt head 34 on screw rod 35 also has thread segment 36.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 for bolt class part is mainly to adopt torque force testing instrument (also to claim torque spanner at present, can apply torsion, can demonstrate simultaneously torque value for monitoring), by manual type, the bolt head of tested bolt to be fixed on bench vice, the screw rod end torque spanner application of force, make screw rod produce the torsion around the screw axis certain angle with respect to fixing bolt head, obtain needed moment of torsion according to the torque value shown on torque spanner.In addition, also having a kind of mode of surveying bolt torque is that the bolt head of tested bolt is fixed on the fixed chuck of Test of Friction machine, the screw rod end is arranged on the rotary chuck of Test of Friction machine, make bolt produce the torsion around the screw axis certain angle with respect to fixing bolt head, obtain needed moment of torsion according to the demonstration torque value of Test of Friction machine.The characteristics that front a kind of mode has simply, quick, expense is few, but have the shortcomings such as error is large, torsion acceleration difficulty is controlled, 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, and when bolt rotates, to survey friction factor and moment of torsion, input-output ratio is little only.
Summary of the invention
The invention provides a kind of bolt torque pick-up unit, 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 pick-up unit, comprise support, on described support, be 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 edge on the tooth bar seat vertically slides up and down, gear rotates the coaxial connection of rotating cover of gear, gear and tooth bar engagement through the pinion stand supporting around horizontal line, tension tester is in transmission connection tooth bar to drive the tooth bar slip, and driven gear and turning set rotation;
On described head supporting seat, offer the head supporting seat hole and the head chuck that are connected and compress screw hole, described head chuck is inserted in head supporting seat hole, the head chuck compresses in screw hole after rigging screw, this screw end stretches in head supporting seat hole against the head chuck, and restriction head chuck rotates around horizontal relative to the head supporting seat; On described head chuck, offer bolt head coupling hole, bolt shaft to be measured is to level, and its bolt head is inserted in bolt head coupling hole, and the shape restriction via bolt head and bolt head coupling hole, make bolt head be restricted around horizontal the rotation relative to the head chuck;
On described turning set, offer the rotation grooving and the nut chuck that are connected and compress screw hole, the nut chuck is inserted and is rotated in grooving, the nut chuck compresses in screw hole after rigging screw, this screw end stretches into rotates in grooving against the nut chuck, and restriction nut chuck relatively rotates cover around horizontal rotation with along horizontal translation; On the nut chuck, offer the nut collet bore, nut embeds in the nut collet bore and the nut collet bore is along the horizontal line sliding contact relatively, and via the shape restriction of nut and nut collet bore, nut is restricted around horizontal the rotation relative to the nut chuck; Nut and bolt head coupling hole height is consistent, so that the thread segment of bolt to be measured stretches in nut, and nut and thread segment threaded engagement;
On described head supporting seat, offer cap opening, this cap opening is communicated with head supporting seat hole, described back of the body cap is fixed on the head supporting seat through cap opening, the end of back of the body cap is stretched in head supporting seat hole, against the bolt head of bolt in head chuck and head chuck, the restriction bolt head is 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 " is to determine with respect 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, the head chuck compresses in screw hole after rigging screw, this screw end is pressed on head chuck plane, or insert in head chuck stopper slot, with restriction head chuck, rotate around horizontal relative to the head supporting seat.
3, in such scheme, described nut chuck is hollow cylindrical structure, this cylinder axis is to level, rotate the cylindrical groove of grooving for matching with the nut chuck, on the nut chuck, offer nut chuck locating slot perpendicular to cylindrical center's axis direction, the screw end of assembling in screw hole that compresses the nut chuck stretches in nut chuck locating slot, relatively rotates cover around horizontal rotation with along horizontal translation with restriction 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 the precession cap opening through thread connection, so that back of the body cap is fixed on the head supporting seat.
5, in such scheme, on described head supporting seat, offer screw elongated slot is installed, this screw install elongated slot flute length along level to, screw is installed rigging screw in elongated slot, in order to be fixed on support the head supporting seat is dismountable, unloads screw the screw in elongated slot is installed, after changing the horizontal range of head supporting seat with respect to turning set, again screw is arranged on to screw the diverse location in elongated slot is installed, the head supporting seat is fixed, namely can adapt to the detection to the bolt of different length specification.
6, in such scheme, described tension tester is the electro-hydraulic servo tension tester.
7, in such scheme, described tension tester is provided with slide block, connects pressure head on this slide block, and this pressure head contacts with tooth bar, slides to drive tooth bar.
8, in such scheme, on described turning set, offer the turning set through hole be communicated with the 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, the cap opening size is greater than the size of bolt head, unscrew the head chuck and compress the screw in screw hole, unscrew the nut chuck and compress the screw in screw hole, use push rod to stretch into Level Promoting bolt in the turning set through hole, the thread segment of bolt and the nut on thread segment are from being pushed out the nut collet bore, from the thread segment rotation, take off nut, and bolt head also leaves bolt head coupling hole and cap opening, continue to promote bolt, by bolt from cap opening, releasing, complete discharging, when the installing bolt, the thread segment of bolt, from cap opening, pushing, is pushed into to thread segment after bolt head coupling hole, stretching out, on thread segment, screw on nut, continue to promote, thread segment and nut enter in the nut chuck together, now the bolt head of bolt enters in bolt head coupling hole, completes charging.
9, in such scheme, described pick-up unit also comprises bar section supporting seat and bar section briquetting, described bar section briquetting comprises the upper holder block of strip and the lower lock block of strip, on upper holder block, offer the upper holder block groove, on lower lock block, offer the lower lock block groove, after upper holder block and lower lock block are involutory, the screw rod of the corresponding fishbolt of upper holder block groove and lower lock block groove, bar section briquetting left end is inserted in head supporting seat hole, on the head supporting seat, also offer the bar section briquetting left end be communicated with head supporting seat hole and compress screw hole, bar section briquetting left end compresses in screw hole after rigging screw, this screw end stretches in head supporting seat hole, left end against bar section briquetting, with limit rod section briquetting left end, rotate around horizontal relative to the head supporting seat, on described bar section supporting seat, offer the bar section supporting seat hole and the bar section briquetting right-hand member that are connected and compress screw hole, bar section briquetting right-hand member is inserted in bar section supporting seat hole, bar section briquetting right-hand member compresses rigging screw in screw hole, this screw end stretches in bar section supporting seat hole, against the right-hand member of bar section briquetting, limit rod section briquetting right-hand member rotates around horizontal relative to bar section supporting seat, bar section briquetting level is less than bolt length to length, so that the thread segment of bolt is after stretching out bar section briquetting, then stretches in nut.
Further, on described turning set, offer the turning set through hole be communicated with the 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, the cap opening size is greater than the size of bolt head, the level interval of bar section supporting seat and nut chuck is greater than the thickness of nut, unscrew the head chuck and compress the screw in screw hole, unscrew the nut chuck and compress the screw in screw hole, unscrew bar section briquetting right-hand member and compress the screw in screw hole, unscrew bar section briquetting left end and compress the screw in screw hole, use push rod to stretch into Level Promoting bolt in the turning set through hole, the thread segment of bolt and the nut on thread segment are by from releasing the nut collet bore, when nut enters in the gap of bar section supporting seat and nut chuck, the reverse rotation nut, continuation with thread segment is moved, thread segment is from breaking away from nut, thread segment is pushed upper holder block and the lower lock block after involutory, bolt head pushed away from bolt head coupling hole and cap opening simultaneously, continue to promote bolt to bolt from cap opening, breaking away from, complete discharging, when the installing bolt, by the thread segment of bolt from cap opening, pushing, thread segment is after bolt head coupling hole and involutory upper holder block and lower lock block, walk to the gap of bar section supporting seat and nut chuck, and nut is placed in this gap location, with advancing the nut rotation set on thread segment of thread segment, thread segment and nut enter in the nut chuck together, now the bolt head of bolt enters in bolt head coupling hole, completes charging.
Principle of work of the present invention is: the bolt head of bolt to be measured is packed in bolt head coupling hole on the head chuck, bolt head and relatively rotating of head chuck are restricted, the screw rod that the upper holder block of bar section briquetting and lower lock block are pushed down bolt, screw flight section part is emerged from bar section briquetting right-hand member, the head chuck is inserted in the head supporting seat together with bolt head, again bar section briquetting left end is also inserted in the head supporting seat, bar section briquetting right-hand member is inserted in bar section supporting seat, by the nut rotation set on the screw flight section, nut is partly inserted in the nut chuck together with the screw flight section, the nut horizontal sliding advances in the nut collet bore, relatively rotating of restriction nut and nut chuck, the relative nut collet bore of nut is along the horizontal line sliding contact, so that nut is when rotating along thread segment, with respect to the translation of nut chuck, then, the head chuck of tightening on the head supporting seat compresses the screw in screw hole, the bar section briquetting left end of tightening on the head supporting seat compresses the screw in screw hole, the bar section briquetting right-hand member of tightening on bar section supporting seat compresses the screw in screw hole, the nut chuck of tightening 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 the tooth bar load application, through the gear driven turning set, slowly rotate, the nut chuck and the nut that drive in turning set rotate around horizontal line, and nut is also being made traveling priority with respect to the nut chuck towards the bolt head direction in rotation, until reach the windup-degree of setting or the load value of regulation, completing rear slider returns, the state of the bolt that during shutdown, observable detects, print data that computer shows and curve etc., screw out back of the body cap, unscrew and respectively compress screw, screw off nut, take out the bolt detected, detect and finish.The windup-degree value that needs are measured can be converted to the shift value of slide block, and by the computer of this shift value, loading speed input tension tester, the pressure head on correct detection device slide block and the mutual alignment of tooth bar.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the thrust that pick-up unit of the present invention utilizes the slide block of tension tester to apply tooth bar becomes 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., can accurately describe the elastic deformation of bolt when bearing torsional interaction, plastic yield is the situation in rupture failure stage even, also can be by changing loading speed, displacements etc. are demonstrated the process of the deformation and failure of bolt under different loading environments, and having overcome conventional employing manpower, by torque spanner, to reverse bolt inaccurate with the loading of measuring the torque value mode and existing, loading speed is unstable, labour intensity is large, can't describe bolt distortion or the defects such as the moment of torsion while destroying and angular displacement relation, and compare with the Test of Friction machine, drop into littlely, price is low, has avoided widely the huge input of Test of Friction machine, has significantly improved the cost performance of checkout equipment.
2, the present invention, by changing head chuck and the nut chuck (the equal capable of regulating of the size of its appearance or internal openings) of different size, can detect the bolt of different size, easy to use and flexible.
Torque peak and angular displacement, loading speed, load time, force-displacement relationship figure etc. when 3, the present invention can test the screw rod of bolt with respect to the angular displacement of bolt head, moment of torsion, destruction, after installing bar section supporting seat, clamping force to the screw rod of bolt to be measured is larger, for example can simulate the be subjected to torsion state of bolt embedment in concrete on railroad track and test, detected moment of torsion data can be used for judging the service condition of bolt and quality etc.
The accompanying drawing explanation
Fig. 1 is the phantom view of a kind of bolt torque pick-up unit the first embodiment of the present invention;
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 pick-up unit the second embodiment discharging state of the present invention.
In above accompanying drawing: 1. support; 2. head supporting seat; 3. head chuck; 4. bar section supporting seat; 5. nut chuck; 6. turning set; 7. nut; 8. bar section briquetting; 9. tension tester; 10. gear; 11. tooth bar; 12. head chuck plane; 13. bolt head coupling hole; 14. head supporting seat hole; 15. the head chuck compresses screw hole; 16. bar section supporting seat hole; 17. bar section briquetting right-hand member compresses screw hole; 18. upper holder block; 19. lower lock block; 20. bar section briquetting left end compresses screw hole; 21. rotation grooving; 22. the nut chuck compresses screw hole; 23. nut collet bore; 24. nut chuck locating slot; 25. back of the body cap; 26. cap opening; 27. screw is installed elongated slot; 28. slide block; 29. pressure head; 30. pinion stand; 31. tooth bar seat; 32. turning set through hole; 33. push rod; 34. bolt head; 35. screw rod; 36. thread segment.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment mono-: shown in Fig. 1～7, a kind of bolt torque pick-up unit, comprise support 1, on described support 1, be 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 edge on tooth bar seat 31 vertically slides up and down, gear 10 rotates around horizontal line through pinion stand 30 supportings, the coaxial connection of rotating cover 6 of gear 10, gear 10 and tooth bar 11 engagements, tension tester 9 is in transmission connection tooth bar 11 to drive tooth bar 11 slips, and driven gear 10 and turning set 6 rotations;
On described head supporting seat 2, offer the head supporting seat hole 14 and the head chuck that are connected and compress screw hole 15, described head chuck 3 is inserted in head supporting seat hole 14, the head chuck compresses in screw hole 15 after rigging screw, this screw end stretches in head supporting seat hole 14 against head chuck 3, and restriction head chuck 3 rotates around horizontal relative to head supporting seat 2; On described head chuck 3, offer bolt head coupling hole 13, bolt shaft to be measured is to level, its bolt head 34 is inserted in bolt head coupling hole 13, limits via bolt head 34 and the shape in bolt head coupling hole 13, and bolt head 34 is restricted around horizontal the rotation relative to head chuck 3;
On described turning set 6, offer the rotation grooving 21 and the nut chuck that are connected and compress screw hole 22, nut chuck 5 is inserted and is rotated in grooving 21, the nut chuck compresses in screw hole 22 after rigging screw, this screw end stretches into rotates in grooving 21 against nut chuck 5, and restriction nut chuck 5 relatively rotates cover 6 around horizontal rotation with along horizontal translation; On nut chuck 5, offer nut collet bore 23, in nut 7 embedding nut collet bore 23, also relative nut collet bore 23 is along the horizontal line sliding contact, via nut 7 and the shape of nut collet bore 23, limit, nut 7 is restricted around horizontal the rotation relative to nut chuck 5; Nut 7 and bolt head coupling hole 13 is highly consistent, so that the thread segment 36 of bolt to be measured stretches in nut 7, and nut 7 and thread segment 36 threaded engagement;
On described head supporting seat 2, offer cap opening 26, this cap opening 26 is communicated with head supporting seat hole 14, 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 in head supporting seat hole 14 against the bolt head 34 of bolt in head chuck 3 and head chuck 3, and restriction bolt head 34 is 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 may offer circular trough, in-line groove, cross bath, hexagonal hole etc., at back of the body cap 25 inserting ends, can be provided with the boss mated with circular trough, in-line groove, cross bath, hexagonal hole etc., boss embeds in circular trough, in-line groove, cross bath, hexagonal hole, can limit bolt head 34 around horizontal rotation, can be also only by the friction force effect between the back of the body cap 25 inserting ends and bolt head (34) planar end, and limit bolt head 34 around horizontal rotation.
Described pick-up unit also comprises bar section supporting seat 4 and bar section briquetting 8, described bar section briquetting 8 comprises the upper holder block 18 of strip and the lower lock block 19 of strip, on upper holder block 18, offer the upper holder block groove, on lower lock block 19, offer the lower lock block groove, after upper holder block 18 is involutory with lower lock block 19, the screw rod 35 of the corresponding fishbolt of upper holder block groove and lower lock block groove, bar section briquetting 8 left ends are inserted in head supporting seat hole 14, on head supporting seat 2, also offer the bar section briquetting left end be communicated with head supporting seat hole 14 and compress screw hole 20, bar section briquetting left end compresses in screw hole 20 after rigging screw, this screw end stretches in head supporting seat hole 14, left end against bar section briquetting 8, with limit rod section briquetting 8 left ends, rotate around horizontal relative to head supporting seat 2.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 is to determine according to the screw rod shape of bolt to be measured, as long as can when pressing bar section briquetting 8, can clamp the screw rod 35 of bolt, limit its rotation and get final product (screw rod 35 of bolt may be square bar, round bar or other shapes).
On described bar section supporting seat 4, offer the bar section supporting seat hole 16 and the bar section briquetting right-hand member that are connected and compress screw hole 17, bar section briquetting 8 right-hand members are inserted in bar section supporting seat hole 16, bar section briquetting right-hand member compresses rigging screw in screw hole 17, this screw end stretches in bar section supporting seat hole 16, against the right-hand member of bar section briquetting 8, limit rod section briquetting 8 right-hand members rotate around horizontal relative to bar section supporting seat 4; Bar section briquetting 8 levels are less than bolt length to length, so that the thread segment 36 of bolt is after stretching out bar section briquetting 8, then stretch in nut 7.
Described head chuck 3 has a head chuck plane 12, or offer head chuck stopper slot, the head chuck compresses in screw hole 15 after rigging screw, this screw end is pressed on head chuck plane 12, or insert in head chuck stopper slot, with restriction head chuck 3, rotate around horizontal relative to head supporting seat 2.
The chuck of head described in the present embodiment 3 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 the head supporting seat hole 14 on described head supporting seat 2 is the square opening coordinated with tetragonal prism.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, rotate the cylindrical groove of grooving 21 for matching with nut chuck 5, on nut chuck 5, offer nut chuck locating slot 24 perpendicular to cylindrical center's axis direction, the screw end that the 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 with restriction 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, so that back of the body cap 25 is fixed on head supporting seat 2.
On described head supporting seat 2, offer screw elongated slot 27 is installed, this screw install elongated slot 27 flute length along level to, screw is installed rigging screw in elongated slot 27, in order to be fixed on support 1 head supporting seat 2 is dismountable, unload screw the screw in elongated slot 27 is installed, after changing the horizontal range of head supporting seat 2 with respect to turning set 6, then screw is arranged on to the diverse location in screw installation elongated slot 27, head supporting seat 2 is fixing, namely can adapt to the detection to the bolt of different length specification.
Described tension tester 9 is the electro-hydraulic servo tension tester.
Described tension tester 9 is provided with slide block 28, on 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 bis-: shown in Figure 8, and a kind of bolt torque pick-up unit, basic structure is identical with embodiment mono-, also comprises bar section supporting seat 4 and bar section briquetting 8, on turning set 6, offer 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 apertures, cap opening 26 sizes are greater than the size of bolt head 34, the level interval of bar section supporting seat 4 and nut chuck 5 is greater than the thickness of nut 7, unscrew the head chuck and compress the screw in screw hole 15, unscrew the nut chuck and compress the screw in screw hole 22, unscrew bar section briquetting right-hand member and compress the screw in screw hole 17, unscrew bar section briquetting left end and compress the screw in screw hole 20, use push rod 33 to stretch into Level Promoting bolt in turning set through hole 32, the thread segment 36 of bolt and the nut 7 on thread segment 36 are by from releasing nut collet bore 23, when nut 7 enters in the gap of bar section supporting seat 4 and nut chuck 5, reverse rotation nut 7, continuation with thread segment 36 is moved, thread segment 36 is from breaking away from nut 7, thread segment 36 is pushed upper holder block 18 and the lower lock block 19 after involutory, bolt head 34 pushed away from bolt head coupling hole 13 and cap opening 26 simultaneously, continue promoting bolt breaks away from 26 to bolt from cap opening, complete discharging, when the installing bolt, by the thread segment of bolt 36 from cap opening 26, pushing, thread segment 36 is after bolt head coupling hole 13 and involutory upper holder block 18 and lower lock block 19, walk to the gap of bar section supporting seat 4 and nut chuck 5, and nut 7 is placed in this gap location, with advancing nut 7 rotation sets on thread segment 36 of thread segment 36, thread segment 36 and nut 7 enter in nut chuck 5 together, now the bolt head 34 of bolt enters 13 li, bolt head coupling hole, 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 is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. bolt torque pick-up unit, comprise support (1), it is characterized in that: on described support (1), be 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) is upper along vertically sliding up and down at 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) is in transmission connection tooth bar (11) to drive tooth bar (11) slip, and driven gear (10) and turning set (6) rotation;
On described head supporting seat (2), offer the head supporting seat hole (14) and the head chuck that are connected and compress screw hole (15), described head chuck (3) is inserted in head supporting seat hole (14), after the head chuck compresses the middle rigging screw of screw hole (15), this screw end stretches in head supporting seat hole (14) against head chuck (3), and restriction head chuck (3) rotates around horizontal relative to head supporting seat (2); On described head chuck (3), offer bolt head coupling hole (13), bolt shaft to be measured is to level, its bolt head (34) is inserted in bolt head coupling hole (13), via bolt head (34) and the shape in bolt head coupling hole (13), limit, bolt head (34) is restricted around horizontal the rotation relative to head chuck (3);
On described turning set (6), offer the rotation grooving (21) and the nut chuck that are connected and compress screw hole (22), nut chuck (5) is inserted and is rotated in grooving (21), after the nut chuck compresses the middle rigging screw of screw hole (22), this screw end stretches into rotates in grooving (21) against nut chuck (5), and restriction nut chuck (5) relatively rotates cover (6) around horizontal rotation with along horizontal translation; On nut chuck (5), offer nut collet bore (23), in nut (7) embedding nut collet bore (23), also relative nut collet bore (23) is along the horizontal line sliding contact, via nut (7) and the shape of nut collet bore (23), limit, nut (7) is restricted around horizontal the rotation relative to nut chuck (5); Nut (7) and bolt head coupling hole (13) is highly consistent, so that the thread segment of bolt to be measured (36) stretches in nut (7), and nut (7) and thread segment (36) threaded engagement;
On described head supporting seat (2), offer cap opening (26), this cap opening (26) is communicated with head supporting seat hole (14), 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 in head supporting seat hole (14), against the bolt head (34) of bolt in head chuck (3) and head chuck (3), restriction bolt head (34) is moved to the left and around horizontal rotation along horizontal.
2. bolt torque pick-up unit 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 the head chuck compresses the middle rigging screw of screw hole (15), this screw end is pressed on head chuck plane (12), or insert in head chuck stopper slot, with restriction head chuck (3), rotate around horizontal relative to head supporting seat (2).
3. bolt torque pick-up unit according to claim 1, it is characterized in that: described nut chuck (5) is hollow cylindrical structure, this cylinder axis is to level, rotate the cylindrical groove of grooving (21) for matching with nut chuck (5), nut chuck (5) is upper offers nut chuck locating slot (24) perpendicular to cylindrical center's axis direction, the screw end that the nut chuck compresses assembling in screw hole (22) stretches in nut chuck locating slot (24), with restriction nut chuck (5), relatively rotate cover (6) around horizontal rotation with along horizontal translation.
4. bolt torque pick-up unit 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, so that back of the body cap (25) is fixed on head supporting seat (2).
5. bolt torque pick-up unit according to claim 1, it is characterized in that: on described head supporting seat (2), offer screw elongated slot (27) is installed, this screw install elongated slot (27) flute length along level to, screw is installed rigging screw in elongated slot (27), in order to be fixed on support (1) head supporting seat (2) is dismountable, unload screw the screw in elongated slot (27) is installed, after changing the horizontal range of head supporting seat (2) with respect to turning set (6), again screw is arranged on to screw the diverse location in elongated slot (27) is installed, head supporting seat (2) is fixing, namely can adapt to the detection to the bolt of different length specification.
6. bolt torque pick-up unit according to claim 1, it is characterized in that: described tension tester (9) is the electro-hydraulic servo tension tester.
7. bolt torque pick-up unit according to claim 1, it is characterized in that: described tension tester (9) is provided with slide block (28), the upper pressure head (29) that connects of this slide block (28), this pressure head (29) contacts with tooth bar (11), slides to drive tooth bar (11).
8. bolt torque pick-up unit according to claim 1, it is characterized in that: on described turning set (6), offer the turning set through hole (32) be communicated with nut collet bore (23), turning set through hole (32) is level axially, bolt thread section (36) in the corresponding nut collet bore in aperture (23), 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), unscrew the head chuck and compress the screw in screw hole (15), unscrew the nut chuck and compress the screw in screw hole (22), use push rod (33) to stretch into Level Promoting bolt in turning set through hole (32), nut (7) on the thread segment of bolt (36) and thread segment (36) is from being pushed out nut collet bore (23), from thread segment (36) rotation, take off nut (7), and bolt head (34) also leaves bolt head coupling hole (13) and cap opening (26), continue to promote bolt, by bolt from cap opening (26), releasing, complete discharging, when the installing bolt, by the thread segment of bolt (36) from cap opening (26), pushing, be pushed into thread segment (36) after bolt head coupling hole (13), stretching out, on thread segment (36), screw on nut (7), continue to promote, thread segment (36) and nut (7) enter in nut chuck (5) together, and it is inner that now the bolt head of bolt (34) enters bolt head coupling hole (13), completes charging.
9. bolt torque pick-up unit according to claim 1, it is characterized in that: described pick-up unit also comprises bar section supporting seat (4) and bar section briquetting (8);
Described bar section's briquetting (8) comprises the upper holder block (18) of strip and the lower lock block (19) of strip, upper holder block offers the upper holder block groove on (18), lower lock block offers the lower lock block groove on (19), after upper holder block (18) is involutory with lower lock block (19), the screw rod (35) of the corresponding fishbolt of upper holder block groove and lower lock block groove, bar section briquetting (8) left end is inserted in head supporting seat hole (14), on head supporting seat (2), also offer the bar section briquetting left end be communicated with head supporting seat hole (14) and compress screw hole (20), after bar section briquetting left end compresses the middle rigging screw of screw hole (20), this screw end stretches in head supporting seat hole (14), left end against bar section briquetting (8), with limit rod section briquetting (8) left end, rotate around horizontal relative to head supporting seat (2),
On described bar section's supporting seat (4), offer the bar section supporting seat hole (16) and the bar section briquetting right-hand member that are connected and compress screw hole (17), bar section briquetting (8) right-hand member is inserted in bar section supporting seat hole (16), bar section briquetting right-hand member compresses rigging screw in screw hole (17), this screw end stretches in bar section supporting seat hole (16), against the right-hand member of bar section briquetting (8), limit rod section briquetting (8) right-hand member rotates around horizontal relative to bar section supporting seat (4); Bar section briquetting (8) level is less than bolt length to length, so that the thread segment of bolt (36) is after stretching out bar section briquetting (8), then stretches in nut (7).
10. bolt torque pick-up unit according to claim 9, it is characterized in that: on described turning set (6), offer the turning set through hole (32) be communicated with nut collet bore (23), turning set through hole (32) is level axially, bolt thread section (36) in the corresponding nut collet bore in aperture (23), 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), the level interval of bar section supporting seat (4) and nut chuck (5) is greater than the thickness of nut (7), unscrew the head chuck and compress the screw in screw hole (15), unscrew the nut chuck and compress the screw in screw hole (22), unscrew bar section briquetting right-hand member and compress the screw in screw hole (17), unscrew bar section briquetting left end and compress the screw in screw hole (20), use push rod (33) to stretch into Level Promoting bolt in turning set through hole (32), nut (7) on the thread segment of bolt (36) and thread segment (36) is by from releasing nut collet bore (23), when nut (7) enters in the gap of bar section supporting seat (4) and nut chuck (5), reverse rotation nut (7), continuation with thread segment (36) is moved, thread segment (36) is from breaking away from nut (7), thread segment (36) is pushed upper holder block (18) and the lower lock block (19) after involutory, bolt head (34) pushed away from bolt head coupling hole (13) and cap opening (26) simultaneously, continuing to promote bolt breaks away from (26) to bolt from cap opening, complete discharging, when the installing bolt, by the thread segment of bolt (36) from cap opening (26), pushing, thread segment (36) is after bolt head coupling hole (13) and involutory upper holder block (18) and lower lock block (19), walk to the gap of bar section supporting seat (4) and nut chuck (5), and nut (7) is placed in this gap location, with advancing nut (7) rotation set on thread segment (36) of thread segment (36), thread segment (36) and nut (7) enter in nut chuck (5) together, it is inner that now the bolt head of bolt (34) enters bolt head coupling hole (13), complete charging.
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| CN103411721B CN103411721B (en) | 2015-01-21 |
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| CN104390737A (en) * | 2014-11-26 | 2015-03-04 | 河南航天精工制造有限公司 | Screwdriver slot torque test method of fastener and test device for implementing the method |
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| CN106952563A (en) * | 2017-05-16 | 2017-07-14 | 重庆科技学院 | A kind of antitorque teaching demonstration device of steel member |
| CN107764469A (en) * | 2017-10-16 | 2018-03-06 | 郑州东辰科技有限公司 | Torque spanner calibrating installation and its bolt simulator |
| CN107764469B (en) * | 2017-10-16 | 2023-11-14 | 河南鑫亮建设工程有限公司 | Torque spanner calibrating device and bolt simulator thereof |
| CN108827129A (en) * | 2018-04-12 | 2018-11-16 | 洛阳理工学院 | A kind of screw thread flatness inspection machine of internal screw workpiece |
| CN108827129B (en) * | 2018-04-12 | 2020-02-04 | 洛阳理工学院 | Thread flatness inspection machine for internal thread workpiece |
| CN109648491A (en) * | 2018-12-24 | 2019-04-19 | 内蒙古北方重型汽车股份有限公司 | Torque checks auxiliary device |
| TWI719821B (en) * | 2020-02-03 | 2021-02-21 | 國立中山大學 | Automatic nut internal thread quality tester |
| US11175122B2 (en) | 2020-02-03 | 2021-11-16 | National Sun Yat-Sen University | Automatic nut internal thread quality tester |
| CN111323157B (en) * | 2020-02-25 | 2021-05-28 | 唐山学院 | Automatic change pay-off assembly check out test set |
| CN111323157A (en) * | 2020-02-25 | 2020-06-23 | 唐山学院 | Automatic change pay-off assembly check out test set |
| CN111982506A (en) * | 2020-09-03 | 2020-11-24 | 苏州星诺奇科技股份有限公司 | High-speed testing arrangement in gear monodentate tensile strength |
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