CN104697453A - High-precision automatic rope length measuring device - Google Patents
High-precision automatic rope length measuring device Download PDFInfo
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- CN104697453A CN104697453A CN201510106497.XA CN201510106497A CN104697453A CN 104697453 A CN104697453 A CN 104697453A CN 201510106497 A CN201510106497 A CN 201510106497A CN 104697453 A CN104697453 A CN 104697453A
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Abstract
The invention discloses a high-precision automatic rope length measuring device. The device is that an electric input mode and a manual input mode are adopted; power is inputted through a servo motor or inputted by manually rotating a hand wheel; the power input is switched through an electromagnetic clutch; a working platform provides support to all other part; two pulley mechanisms are respectively mounted at the upper end part of the working platform; a speed reducer and a power transmission mechanism are coaxially mounted to a lead screw mechanism through a coupling; two reference pins are positioned at two sides of one end of the lead screw mechanism; when inputting the power through the servo motor, the measuring device is completely automatic; a computer and a data acquiring unit control the servo motor to rotate through software; in addition, the real-time data fed back by a grating ruler are acquired, then the length of a rope can be displayed on real time according to the number feedback of the grating ruler, and the measurement precision is not greater than 0.02mm. The measuring device is high in measuring precision, safe and reliable, and particularly applicable to automatic measurement of the rope with any length and any diameter under a certain pre-tension force.
Description
Technical field
The present invention relates to a kind of measurement mechanism, specifically, relate to a kind of high-precision automatic measuring device for rope length.
Background technology
The high-precision automatic measuring device of rope length, can realize power as required and be inputted by servomotor or the input of manual rotation's handwheel, the switch mode of power input is realized by clutch coupling.The power of input slows down through conic reducer, commutation, and then power reaches Precision Lead-Screw nut body.Convert rotational motion is accurate rectilinear motion by Precision Lead-Screw nut body again, and rope is stretching under certain pretension; And pass through the combination of Precision Lead-Screw nut body and high precision grating scale, realize the high-acruracy survey to random length rope.
Disclose in Chinese patent CN103639847A " a kind of ball screw assembly, length measuring instrument ", this measuring instrument can utilize the length of survey instrument optical grating ruler measurement ball-screw, and mechanism is comparatively simple, measures accurately.But operating process needs Non-follow control, automaticity is low, and can only measure axle and the large part of other rigidity, can not measure the parts that material is softer.
Propose in patent of invention CN203501978U " a kind of linear measure longimetry mechanism ", this measuring mechanism utilizes the length of optical grating ruler measurement axial workpiece, and structure is simple; But each measurement all needs to utilize standard component calibration measurements system, and needs measured value to do difference, and measurement range is subject to the restriction of cylinder length, can only measure the axial workpiece that the equal altitudes suitable with standard component length is large.
Summary of the invention
In order to avoid the deficiency that prior art exists, overcome its measurement mechanism automaticity low, measure limited length, measuring accuracy is low, drive form is single problem, the present invention proposes a kind of high-precision automatic measuring device for rope length, measurement mechanism adopts electronic, manual two kinds of input patterns, power is inputted by servomotor or the input of hand rotation handwheel, and the switching of power input is realized by electromagnetic clutch.During servomotor input power, measurement mechanism realizes robotization completely, controlled the length of the rope needing to measure by computer program, by the length of the reading feedback real-time display rope of grating scale, realize the automatic measurement of random length and diameter rope under certain pretension.
The technical solution adopted for the present invention to solve the technical problems is: comprise workbench, platform adjustment mechanism, pulley mechanism, screw mechanism, speed reduction unit and power transmission mechanism, computing machine and data acquisition unit, reference pins, described workbench provides support for other each parts; Platform adjustment mechanism is positioned at below workbench, two pulley mechanisms are arranged on workbench upper end respectively, screw mechanism is fixed on middle part on workbench, speed reduction unit and power transmission mechanism are coaxially installed by shaft coupling and leading screw, two reference pins are separately fixed on workbench, are positioned at the both sides of screw mechanism one end;
Described platform adjustment mechanism comprises support chassis, platform support, highly regulates stud, setting nut, platform support is framed structure, stud is highly regulated to be fixed on the lower end of four columns of platform support, and be connected with support chassis, the lower end that setting nut is arranged on column coordinates with highly regulating stud;
Described pulley mechanism comprises pulley, pulley support, pulley bracket, pulley support is trapezium structure, pulley support top is inclined-plane, there is attachment lug with holes on base, pulley support both sides, pulley and pulley bracket pass through pinned connection, pulley bracket is arranged on pulley support, and two pulley support Parallel Symmetrics are fixed on same end on workbench;
Described screw mechanism comprises register pin, leading screw bearing, spring bearing, guide rail, leading screw, feed screw nut, extending arm, photoelectric position limit device, stop catch, grating scale, grating ruler reading head, leading screw bearing passes through two register pin location and installation on workbench, spring bearing is embedded in the two ends of leading screw bearing, leading screw is arranged on leading screw bearing by spring bearing, there is guide rail leading screw both sides, feed screw nut is connected with leading screw, and coordinate with guide rail and install, two photoelectric position limit devices are separately fixed at the two ends of leading screw bearing side, stop catch is arranged on feed screw nut, grating scale is pasted onto the side of leading screw bearing, grating ruler reading head is fixed on feed screw nut by support, the grating ruler reading head length that in real time shows rope relative to grating scale, grating scale precision is 0.5 μm, described extending arm comprises extending arm pedestal, L-type locating piece, rotating dog, bearing, bearing upper end cover, bearing bottom end cover, the base aperture internal fixtion at extending arm pedestal two ends has bearing, rotating dog is arranged on bearing inner race, rotating dog top circumference is fluted, bearing upper end cover and bearing bottom end cover are separately fixed in extending arm base aperture, L-type locating piece is positioned at the downside of extending arm pedestal, and extending arm pedestal is located by L-type locating piece and feed screw nut, and extending arm pedestal and feed screw nut are connected,
Described speed reduction unit and power transmission mechanism comprise shaft coupling, conic reducer, electromagnetic clutch, planetary reducer, servomotor, mount pad, manual reductor, handwheel, bevel gear, conic reducer case, gear shaft bearing, reducer output shaft, electromagnetic clutch contact, mount pad is by register pin location and installation on workbench, and conic reducer and planetary reducer, manual reductor are fixed on mount pad; Reducer output shaft is connected with leading screw by shaft coupling, two bevel gears are arranged on two gear shafts respectively, and two bevel gears are meshed, two gear shafts are fixed in conic reducer case by gear shaft bearing, the other end of one of them gear shaft is connected with electromagnetic clutch, electromagnetic clutch is connected with manual reductor, and handwheel is arranged on manual reductor, and electromagnetic clutch contact is arranged on the side of electromagnetic clutch; The other end of another gear shaft is connected with electromagnetic clutch, planetary reducer is positioned at the middle part of electromagnetic clutch and servomotor, planetary reducer one end is connected with electromagnetic clutch, and the other end is connected with servomotor, and electromagnetic clutch contact is arranged on the side of electromagnetic clutch;
Described computing machine and data acquisition unit are rotated by software control servomotor, and gather the real time data of grating scale feedback, realize the linear measure longimetry of rope.
The reference pins of described pulley and homonymy, rotating dog are positioned on same axis.
Beneficial effect
The present invention is used for the high-precision automatic measuring device of rope length, adopts electronic, manual two kinds of input patterns, and power is inputted by servomotor or the input of hand rotation handwheel, and the switching of power input is realized by electromagnetic clutch.During servomotor input power, measurement mechanism realizes robotization completely; Computing machine and data acquisition unit need the length of the rope measured by programmed control, by the rotation of software control servomotor, shown the length of rope by the reading feedback of grating scale in real time, and gather the data of grating scale feedback, realize measuring accuracy≤0.02mm.
The present invention is used for the high-precision automatic measuring device of rope length, and plant capacity is low, efficiency is high, safe and reliable, and measuring accuracy is high, and the rope being particularly suitable for random length and arbitrary diameter rope under certain pretension grows tall precision automatic measurement.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, a kind of high-precision automatic measuring device for rope length of the present invention is described in further detail.
Fig. 1 is the high-precision automatic measuring device schematic diagram of rope length of the present invention.
Fig. 2 is height adjustment mechanism axonometric drawing of the present invention.
Fig. 3 is pulley mechanism axonometric drawing of the present invention.
Fig. 4 is screw mechanism schematic diagram of the present invention.
Fig. 5 is grating scale of the present invention and grating ruler reading head position schematic diagram.
Fig. 6 is extending arm schematic diagram of the present invention.
Fig. 7 is conic reducer axonometric drawing of the present invention.
Fig. 8 is speed reduction unit of the present invention and power transmission mechanism axonometric drawing.
In figure:
1. manual reductor 14. handwheel 15. register pin 16. of support chassis 2. platform support 3. workbench 4. pulley mechanism 5. reference pins 6. screw mechanism 7. shaft coupling 8. conic reducer 9. electromagnetic clutch 10. planetary reducer 11. servomotor 12. mount pad 13. highly regulates stud 17. setting nut 18. pulley support 19. pulley 20. pulley bracket 21. leading screw bearing 22. spring bearing 23. guide rail 24. leading screw 25. extending arm 26. feed screw nut 27. photoelectric position limit device 28. stop catch 29. bearing bottom end cover 30. bearing 31. rotating dog 32. bearing upper end cover 33.L type locating piece 34. extending arm pedestal 35. grating scale 36. grating ruler reading head 37. conic reducer case 38. reducer output shaft 39. bevel gear 40. gear shaft bearing 41. electromagnetic clutch contact
Embodiment
The present embodiment is a kind of high-precision automatic measuring device for rope length.
Consult Fig. 1 ~ Fig. 8, the present embodiment is used for the high-precision automatic measuring device of rope length, is made up of workbench, platform adjustment mechanism, pulley mechanism, screw mechanism, speed reduction unit and power transmission mechanism, computing machine and data acquisition unit and reference pins; Workbench provides support for other each parts; Platform adjustment mechanism is positioned at below workbench, two pulley mechanisms are arranged on workbench upper end respectively, screw mechanism is fixed on middle part on workbench, speed reduction unit and power transmission mechanism are coaxially installed by shaft coupling and leading screw, two reference pins are separately fixed on workbench, the both sides of screw mechanism one end; Computing machine and data acquisition unit control servomotor and image data.
Platform adjustment mechanism comprises support chassis 1, platform support 2, highly regulates stud 16, setting nut 17, platform support 2 is tower structure, stud 16 is highly regulated to be fixed on the lower end of four columns of platform support 2, and be connected with support chassis 1, setting nut 17 is arranged on the lower end of four columns of platform support 2, and setting nut 17 coordinates with highly regulating stud 16.
Pulley mechanism 4 comprises pulley 19, pulley support 18, pulley bracket 20, and pulley support 18 is trapezium structure, and pulley support 18 top is inclined-plane, the inclined-plane of pulley support 18 has four screws, and there is attachment lug with holes on base, pulley support 18 both sides; Pulley bracket 20 is L-type, and four through holes are arranged at bottom, and pulley 19 and pulley bracket 20 are by pinned connection, and pulley bracket 20 is bolted on pulley support 18, and two pulley supports 18 are arranged on same end on workbench 3 respectively by bolt.
Screw mechanism 6 comprises leading screw bearing 21, spring bearing 22, guide rail 23, leading screw 24, feed screw nut 26, extending arm 25, photoelectric position limit device 27, stop catch 28, grating scale 35, grating ruler reading head 36, leading screw bearing 21 is fixed on workbench by register pin 15 location, spring bearing 22 is embedded in the two ends of leading screw bearing 21, leading screw 24 is arranged on leading screw bearing 21 by spring bearing 22, there is guide rail 23 leading screw 24 both sides, feed screw nut 26 coordinates with guide rail 23 to be installed, and feed screw nut 26 moves along guide rail; Photoelectric position limit device 27 is arranged on the two ends of leading screw bearing 21 side respectively, stop catch 28 is arranged on feed screw nut 26, grating scale 35 is pasted onto the side of leading screw bearing 21, grating ruler reading head 36 is fixed on feed screw nut 26 by support, grating ruler reading head 36 is relative with grating scale 35, the length of real-time display rope, grating scale 35 precision is 0.5 μm.Leading screw length is 1000mm, then measurable rope length fluctuations scope is 50 ~ 1000mm, and precision is 0.01mm.Change the initial position of reference pins 5, can strengthen or reduce the measurement range of rope, realize the measurement of random length rope.
Extending arm 25 is made up of extending arm pedestal 34, L-type locating piece 33, rotating dog 31, bearing 30, bearing upper end cover 32, bearing bottom end cover 29; The base aperture internal fixtion at extending arm pedestal 34 two ends has bearing 30, and rotating dog 31 is arranged on bearing inner race, and rotating dog 31 top circumference is fluted, prevents in rope linear measure longimetry process, and rope departs from rotating dog 31; Measure the rope of different-diameter, rotating dog groove size is different, now needs to change rotating dog 31, realizes the measurement of different-diameter rope.Bearing upper end cover 32 and bearing bottom end cover 29 are separately fixed in extending arm base aperture and are bolted, L-type locating piece 33 is arranged on the downside of extending arm pedestal 34, extending arm pedestal 34 is located by L-type locating piece 33 and feed screw nut 26, and extending arm pedestal 34 is fixedly connected with feed screw nut 26.
Speed reduction unit and power transmission mechanism comprise shaft coupling 7, conic reducer 8, electromagnetic clutch 9, planetary reducer 10, servomotor 11, mount pad 12, manual reductor 13, handwheel 14, bevel gear 39, conic reducer case 37, gear shaft bearing 40, reducer output shaft 38, electromagnetic clutch contact 41, mount pad 12 is located by register pin, be arranged on workbench 3, conic reducer 8 and planetary reducer 10, manual reductor 13 are fixed on mount pad 12; Reducer output shaft 38 is connected with leading screw 24 by shaft coupling 7, two bevel gears 39 are arranged on two gear shafts respectively, and two bevel gears 39 are meshed, two gear shafts are fixed in conic reducer case 37 by gear shaft bearing 40, wherein, the other end of a gear shaft is connected with electromagnetic clutch 9, and electromagnetic clutch 9 is connected with manual reductor 13, handwheel 14 is arranged on manual reductor 13, and electromagnetic clutch contact 41 is arranged on electromagnetic clutch 9 side; The other end of another gear shaft is connected with electromagnetic clutch 9, planetary reducer 10 is positioned at the middle part of electromagnetic clutch 9 and servomotor 11, planetary reducer 10 one end is connected with electromagnetic clutch 9, the other end is connected with servomotor 11, servomotor 11 is positioned at mount pad 12 side, and electromagnetic clutch contact 41 is arranged on electromagnetic clutch 9 side; Reference pins 5, the rotating dog 31 of pulley 19 and homonymy are positioned on same axis.Computing machine and data acquisition unit pass through the rotation of software control servomotor 11, and gather the real time data of grating scale 35 feedback, realize the linear measure longimetry of rope.
During the high-precision automatic measuring device work of rope length, first according to rope length requirement, determine reference pins position, and according to the diameter of rope, select the reference pins 5 with suitable recess and rotating dog 31; By rope free end around in reference pins 5, then around in the groove of the rotating dog 31 on extending arm, free end is walked around pulley 19, rope hangs down naturally; For making rope tensioning, the counterweight of certain mass need be hung on request at the free end of rope.When adopting electronic input, electric end clutch coupling is closed, manual end clutch coupling disconnects, rotated by computer-controlled servo motor 11, after planetary reducer 10 slows down, power is sent to conic reducer 8, leading screw 24 is driven to rotate, the convert rotational motion of leading screw 24 is the rectilinear motion of feed screw nut 26, drive extending arm 25, stop catch 28, grating ruler reading head 36 and feed screw nut 26 synchronizing moving, the real time data that grating ruler reading head 36 feeds back increases with the movement of feed screw nut 26, now be elongated around the rope between reference pins 5 and rotating dog 31, the data fed back to when grating scale 35 reach the length measured required for rope, and during precision≤0.02mm, servomotor 11 stops operating automatically, completes measurement.Rotating dog 31 on extending arm 25 and the reference pins 5 on workbench 3 respectively have two, can measure the identical rope of two length simultaneously.If due to mechanical fault, or rope length fluctuations exceedes screw travel, and feed screw nut 26 arrives end, and stop catch 28 moves to photoelectric position limit device 27 place, and by Signal transmissions to computing machine, software identifies automatically, and servomotor 11 stops operating.When adopting manual operation input, then disconnected by electric end clutch coupling, manually end clutch coupling closes, and rotates handwheel 14, power manually reductor 13 is sent to conic reducer 8, drive leading screw 24 to rotate, the convert rotational motion of leading screw 24 is the rectilinear motion of feed screw nut 26, finally, the data fed back to when grating scale reach the length measured required for rope, and during precision≤0.02mm, shut-down operation is rotated, and completes measurement.During manual operation can measure two ropes simultaneously.
Claims (2)
1. the high-precision automatic measuring device for rope length, it is characterized in that: comprise workbench, platform adjustment mechanism, pulley mechanism, screw mechanism, speed reduction unit and power transmission mechanism, computing machine and data acquisition unit, reference pins, described workbench provides support for other each parts; Platform adjustment mechanism is positioned at below workbench, two pulley mechanisms are arranged on workbench upper end respectively, screw mechanism is fixed on middle part on workbench, speed reduction unit and power transmission mechanism are coaxially installed by shaft coupling and leading screw, two reference pins are separately fixed on workbench, are positioned at the both sides of screw mechanism one end;
Described platform adjustment mechanism comprises support chassis, platform support, highly regulates stud, setting nut, platform support is framed structure, stud is highly regulated to be fixed on the lower end of four columns of platform support, and be connected with support chassis, the lower end that setting nut is arranged on column coordinates with highly regulating stud;
Described pulley mechanism comprises pulley, pulley support, pulley bracket, pulley support is trapezium structure, pulley support top is inclined-plane, there is attachment lug with holes on base, pulley support both sides, pulley and pulley bracket pass through pinned connection, pulley bracket is arranged on pulley support, and two pulley support Parallel Symmetrics are fixed on same end on workbench;
Described screw mechanism comprises register pin, leading screw bearing, spring bearing, guide rail, leading screw, feed screw nut, extending arm, photoelectric position limit device, stop catch, grating scale, grating ruler reading head, leading screw bearing passes through two register pin location and installation on workbench, spring bearing is embedded in the two ends of leading screw bearing, leading screw is arranged on leading screw bearing by spring bearing, there is guide rail leading screw both sides, feed screw nut is connected with leading screw, and coordinate with guide rail and install, two photoelectric position limit devices are separately fixed at the two ends of leading screw bearing side, stop catch is arranged on feed screw nut, grating scale is pasted onto the side of leading screw bearing, grating ruler reading head is fixed on feed screw nut by support, the grating ruler reading head length that in real time shows rope relative to grating scale, grating scale precision is 0.5 μm, described extending arm comprises extending arm pedestal, L-type locating piece, rotating dog, bearing, bearing upper end cover, bearing bottom end cover, the base aperture internal fixtion at extending arm pedestal two ends has bearing, rotating dog is arranged on bearing inner race, rotating dog top circumference is fluted, bearing upper end cover and bearing bottom end cover are separately fixed in extending arm base aperture, L-type locating piece is positioned at the downside of extending arm pedestal, and extending arm pedestal is located by L-type locating piece and feed screw nut, and extending arm pedestal and feed screw nut are connected,
Described speed reduction unit and power transmission mechanism comprise shaft coupling, conic reducer, electromagnetic clutch, planetary reducer, servomotor, mount pad, manual reductor, handwheel, bevel gear, conic reducer case, gear shaft bearing, reducer output shaft, electromagnetic clutch contact, mount pad is by register pin location and installation on workbench, and conic reducer and planetary reducer, manual reductor are fixed on mount pad; Reducer output shaft is connected with leading screw by shaft coupling, two bevel gears are arranged on two gear shafts respectively, and two bevel gears are meshed, two gear shafts are fixed in conic reducer case by gear shaft bearing, the other end of one of them gear shaft is connected with electromagnetic clutch, electromagnetic clutch is connected with manual reductor, and handwheel is arranged on manual reductor, and electromagnetic clutch contact is arranged on the side of electromagnetic clutch; The other end of another gear shaft is connected with electromagnetic clutch, planetary reducer is positioned at the middle part of electromagnetic clutch and servomotor, planetary reducer one end is connected with electromagnetic clutch, and the other end is connected with servomotor, and electromagnetic clutch contact is arranged on the side of electromagnetic clutch;
Described computing machine and data acquisition unit are rotated by software control servomotor, and gather the real time data of grating scale feedback, realize the linear measure longimetry of rope.
2. the high-precision automatic measuring device for rope length according to claim 1, is characterized in that: the reference pins of described pulley and homonymy, rotating dog are positioned on same axis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510106497.XA CN104697453B (en) | 2015-03-11 | 2015-03-11 | A kind of high-precision automatic measuring device for rope length |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510106497.XA CN104697453B (en) | 2015-03-11 | 2015-03-11 | A kind of high-precision automatic measuring device for rope length |
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| CN104697453A true CN104697453A (en) | 2015-06-10 |
| CN104697453B CN104697453B (en) | 2017-10-10 |
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| CN201510106497.XA Expired - Fee Related CN104697453B (en) | 2015-03-11 | 2015-03-11 | A kind of high-precision automatic measuring device for rope length |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716553A (en) * | 2016-02-02 | 2016-06-29 | 三明市前创微控科技有限公司 | Variable length standard device |
| CN106767440A (en) * | 2017-03-06 | 2017-05-31 | 苏州科米隆机电有限公司 | Zip line length measuring mechanism |
| CN106770952A (en) * | 2016-12-22 | 2017-05-31 | 合肥汉德贝尔属具科技有限公司 | Suitable for the transmission device of detection probe |
| CN106839998A (en) * | 2017-04-12 | 2017-06-13 | 佛山市博斯马克机器人有限公司 | Glass length detection means |
| CN109227474A (en) * | 2018-09-30 | 2019-01-18 | 成都南方电子仪表有限公司 | A kind of release of spring and compression set |
| CN109724527A (en) * | 2019-03-21 | 2019-05-07 | 广东丹海金属有限公司 | A kind of conducting wire drawing line footpath detection device and its method |
| CN110954042A (en) * | 2019-12-03 | 2020-04-03 | 中国航空工业集团公司北京航空精密机械研究所 | Linear displacement sensor positioning device |
| CN111851103A (en) * | 2020-06-01 | 2020-10-30 | 上海宇航系统工程研究所 | Tension-displacement measurement and control and crimping equipment for flexible rope |
| CN113533208A (en) * | 2021-07-29 | 2021-10-22 | 昆山世纪三友测量技术有限公司 | Splicing type one-key measuring instrument |
| CN113547487A (en) * | 2021-08-02 | 2021-10-26 | 昆山世纪三友测量技术有限公司 | Fast and slow switching device |
| CN113739735A (en) * | 2021-08-31 | 2021-12-03 | 普宙科技(深圳)有限公司 | Electric winch device with automatic limiting and rope length detecting functions |
| CN115900565A (en) * | 2023-02-28 | 2023-04-04 | 深圳联颖通讯有限公司 | Computer data line length measuring instrument |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716553A (en) * | 2016-02-02 | 2016-06-29 | 三明市前创微控科技有限公司 | Variable length standard device |
| CN106770952A (en) * | 2016-12-22 | 2017-05-31 | 合肥汉德贝尔属具科技有限公司 | Suitable for the transmission device of detection probe |
| CN106767440B (en) * | 2017-03-06 | 2023-03-14 | 苏州科米隆机电有限公司 | Zipper line length measuring mechanism |
| CN106767440A (en) * | 2017-03-06 | 2017-05-31 | 苏州科米隆机电有限公司 | Zip line length measuring mechanism |
| CN106839998A (en) * | 2017-04-12 | 2017-06-13 | 佛山市博斯马克机器人有限公司 | Glass length detection means |
| CN109227474A (en) * | 2018-09-30 | 2019-01-18 | 成都南方电子仪表有限公司 | A kind of release of spring and compression set |
| CN109724527A (en) * | 2019-03-21 | 2019-05-07 | 广东丹海金属有限公司 | A kind of conducting wire drawing line footpath detection device and its method |
| CN110954042A (en) * | 2019-12-03 | 2020-04-03 | 中国航空工业集团公司北京航空精密机械研究所 | Linear displacement sensor positioning device |
| CN111851103B (en) * | 2020-06-01 | 2021-09-28 | 上海宇航系统工程研究所 | Tension-displacement measurement and control and crimping equipment for flexible rope |
| CN111851103A (en) * | 2020-06-01 | 2020-10-30 | 上海宇航系统工程研究所 | Tension-displacement measurement and control and crimping equipment for flexible rope |
| CN113533208A (en) * | 2021-07-29 | 2021-10-22 | 昆山世纪三友测量技术有限公司 | Splicing type one-key measuring instrument |
| CN113547487A (en) * | 2021-08-02 | 2021-10-26 | 昆山世纪三友测量技术有限公司 | Fast and slow switching device |
| CN113739735A (en) * | 2021-08-31 | 2021-12-03 | 普宙科技(深圳)有限公司 | Electric winch device with automatic limiting and rope length detecting functions |
| CN115900565A (en) * | 2023-02-28 | 2023-04-04 | 深圳联颖通讯有限公司 | Computer data line length measuring instrument |
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Inventor after: Zhao Ning Inventor after: Zhou Ruchuan Inventor after: Yang Xiaohui Inventor after: Wang Jianhui Inventor after: Liu Guili Inventor after: Zhang Ting Inventor after: Huang Li Inventor before: Zhao Ning Inventor before: Zhou Ruchuan Inventor before: Wang Jianhui Inventor before: Liu Guili Inventor before: Zhang Ting Inventor before: Huang Li |
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