CN102937406A - Shaft keyway symmetry measuring device - Google Patents
Shaft keyway symmetry measuring device Download PDFInfo
- Publication number
- CN102937406A CN102937406A CN2012104661273A CN201210466127A CN102937406A CN 102937406 A CN102937406 A CN 102937406A CN 2012104661273 A CN2012104661273 A CN 2012104661273A CN 201210466127 A CN201210466127 A CN 201210466127A CN 102937406 A CN102937406 A CN 102937406A
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- measuring
- vernier caliper
- measuring jaw
- dial indicator
- shaft
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a shaft keyway symmetry measuring device, and belongs to the field of machining accuracy measurement. The shaft keyway symmetry measuring device comprises a vernier caliper, a movable lever measuring jaw, a hanger spring and a dial indicator, a dial indicator clamp sleeve is mounted at a fixed end of the vernier caliper, the dial indicator is mounted on the dial indicator clamp sleeve, the 'L'-shaped movable lever measuring jaw is mounted at the fixed end of a right-angle main scale of the vernier caliper by the aid of a rivet shaft copper bush, one end of the hanger spring is hooked on a vertical side of the movable lever measuring jaw, the other end of the hanger spring is hooked at the outer end of the fixed end of the right-angle main scale, the dial indicator is sleeved in the dial indicator clamp sleeve, the bottom end of the dial indicator contacts with a horizontal side of the movable lever measuring jaw, a spherical measuring head hole is arranged at a measuring head position of the movable lever measuring jaw, a steel ball is pressed into the spherical measuring head hole, a lengthened moving end is arranged at a moving end of the vernier caliper, and the length of the lengthened moving end is matched with the diameter of a measured shaft. The shaft keyway symmetry measuring device has the advantages of simple structure, convenience in operation, wide measuring range, high precision, light weight, portability and capability of meeting the requirement on machining measurement of shaft keyway symmetry.
Description
Technical field
The present invention relates to a kind of device for measuring key slot symmetry degree of shaft, belong to the machining accuracy fields of measurement.
Background technology
The axle keyway symmetry measurement is widely used in motor, lathe, automobile making and all axial workpieces with the keyway connection.At present, the axle keyway symmetry measuring method is mainly measured with V shape iron, flat board, dial gauge and gauge stand common name signing method.The method operation is not convenient, and measurement means is loaded down with trivial details, and precision reliability is poor.
Summary of the invention
For addressing the above problem, the invention provides a kind of device for measuring key slot symmetry degree of shaft.
The present invention realizes with following technical scheme: a kind of device for measuring key slot symmetry degree of shaft, comprise vernier caliper, and dial gauge cutting ferrule, movable levers measuring jaw, hook spring are installed and are installed in dial gauge on the dial gauge cutting ferrule at the stiff end of vernier caliper; Described movable levers measuring jaw is
Shape is installed in the rivet shaft copper sheathing on the right angle main scale stiff end of vernier caliper; One end hook of hook spring hangs on the vertical edge of movable levers measuring jaw, and the other end is hooked on the outer end of right angle main scale stiff end; Described dial gauge is enclosed within the dial gauge cutting ferrule, and its bottom contacts with the horizontal sides of movable levers measuring jaw; There is the spheric probe hole at the gauge head position of movable levers measuring jaw, and spheric probe has been pressed into steel ball in the hole; The lengthening mobile terminal that has length to cooperate with the diameter of measured axis in the vernier caliper mobile terminal.
Advantage of the present invention is: device for measuring key slot symmetry degree of shaft is simple in structure, and is easy to operate, and measurement range is wide, precision is high, lightweight, be easy to carry, can satisfy the requirement that present machining is measured axle keyway symmetry, be to measure the desirable measuring appliance of axle keyway symmetry.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1, hook spring, 2, amplification ratio 2:1 movable levers measuring jaw, 3, the dial gauge cutting ferrule, 4, dial gauge, 5, trip bolt, 6, right angle main scale stiff end, 7, the rivet shaft copper sheathing, 8, steel ball, 9, main scale lengthens the mobile terminal, 10, trip bolt, 11, the fine setting of main scale mobile terminal.
Embodiment
Below in conjunction with drawings and Examples structure of the present invention and using method are further specified.
As shown in Figure 1, a kind of device for measuring key slot symmetry degree of shaft comprises vernier caliper, dial gauge cutting ferrule 3, movable levers measuring jaw 2, hook spring 1 is installed and is installed in dial gauge 5 on the dial gauge cutting ferrule 3 at the stiff end of vernier caliper; Movable levers measuring jaw 2 is
Shape, the amplification ratio of movable levers measuring jaw 2 are 2:1; Be installed in rivet shaft copper sheathing 7 on the right angle main scale stiff end 6 of vernier caliper; One end hook of hook spring 1 hangs on the vertical edge of movable levers measuring jaw 2, and the other end is hooked on the outer end of right angle main scale stiff end 6; Described dial gauge 5 is enclosed within the dial gauge cutting ferrule 3, and its bottom contacts with the horizontal sides of movable levers measuring jaw 2; There is the spheric probe hole at the gauge head position of movable levers measuring jaw 2, has been pressed into steel ball 8 in the spheric probe hole; The lengthening mobile terminal 9 that has length to cooperate with the diameter of measured axis in the vernier caliper mobile terminal.
The movable levers measuring jaw produces by 1:2 lever ratio size, and for example: the dial gauge gauge head is of a size of 20mm to the movable levers axis hole, and movable levers axis hole to keyway gauge head is of a size of 10mm.Guarantee like this size of dial gauge gauge head to movable levers axis hole size and movable levers axis hole to the keyway gauge head than being 2:1.Movable levers is assemblied on the right angle main scale stiff end 6 by lever shaft and rivet shaft copper sheathing 7.
Measuring method is that elder generation contacts steel ball 8 with the keyway groove face, simultaneously the measurement face that lengthens mobile terminal 9 is contacted with the axle maximum gauge, at this moment 5 pairs of zero-bits of dial gauge, again along the axial translation of keyway, reads the dial gauge maximum deflection difference value.Then, this measurement device direction is transferred turnback, another groove face of gauge head 8 and keyway is contacted, simultaneously the measurement face that lengthens mobile terminal 9 is contacted with the axle maximum gauge, measuring method is the same, reads the dial gauge maximum deflection difference value.At last measurement numerical value is carried out suitable conversion and obtain the symmetry error value, can judge the axle keyway symmetry qualification.
Claims (2)
1. device for measuring key slot symmetry degree of shaft, comprise vernier caliper, it is characterized in that, dial gauge cutting ferrule (3), movable levers measuring jaw (2), hook spring (1) are installed and are installed in dial gauge (5) on the dial gauge cutting ferrule (3) at the stiff end of vernier caliper; Described movable levers measuring jaw (2) is
Shape is installed in rivet shaft copper sheathing (7) on the right angle main scale stiff end (6) of vernier caliper; One end hook of hook spring (1) hangs on the vertical edge of movable levers measuring jaw (2), and the other end is hooked on the outer end of right angle main scale stiff end (6); Described dial gauge (5) is enclosed within the dial gauge cutting ferrule (3), and its bottom contacts with the horizontal sides of movable levers measuring jaw (2); There is the spheric probe hole at the gauge head position of movable levers measuring jaw (2), has been pressed into steel ball (8) in the spheric probe hole; The lengthening mobile terminal (9) that has length to cooperate with the diameter of measured axis in the vernier caliper mobile terminal.
2. device for measuring key slot symmetry degree of shaft according to claim 1 is characterized in that, the amplification ratio of described movable levers measuring jaw (2) is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104661273A CN102937406A (en) | 2012-11-16 | 2012-11-16 | Shaft keyway symmetry measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104661273A CN102937406A (en) | 2012-11-16 | 2012-11-16 | Shaft keyway symmetry measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937406A true CN102937406A (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104661273A Pending CN102937406A (en) | 2012-11-16 | 2012-11-16 | Shaft keyway symmetry measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102937406A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245281A (en) * | 2013-05-03 | 2013-08-14 | 徐州工业职业技术学院 | Device and method for measuring symmetry degree of key groove of shaft |
| CN103424059A (en) * | 2013-08-19 | 2013-12-04 | 徐州工业职业技术学院 | Symmetry measuring equipment for hole and key groove |
| CN105509594A (en) * | 2015-11-27 | 2016-04-20 | 广东长盈精密技术有限公司 | Measurement hook pin and measurement method of groove |
| CN107044814A (en) * | 2017-01-20 | 2017-08-15 | 中国电子科技集团公司第十四研究所 | Device and its measuring method during a kind of worm gear teeth is axially surveyed |
| CN107990813A (en) * | 2017-11-24 | 2018-05-04 | 四川凌峰航空液压机械有限公司 | The detection method of shaft end rectangle keyway plane symmetry site error |
| CN109579653A (en) * | 2018-11-30 | 2019-04-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of lengthening lever dial framework |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6057207A (en) * | 1983-09-09 | 1985-04-03 | Nissan Motor Co Ltd | Method for measuring shaft diameter and roundness of cylindrical member having recessed groove |
| CN101393004A (en) * | 2006-12-27 | 2009-03-25 | 刘其和 | Special caliper for shaft key groove |
| CN201628524U (en) * | 2010-02-11 | 2010-11-10 | 白介明 | Vernier caliper for degree of keyway symmetry |
| CN102261885A (en) * | 2011-04-20 | 2011-11-30 | 徐州工业职业技术学院 | Device for measuring key slot symmetry degree of shaft |
-
2012
- 2012-11-16 CN CN2012104661273A patent/CN102937406A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6057207A (en) * | 1983-09-09 | 1985-04-03 | Nissan Motor Co Ltd | Method for measuring shaft diameter and roundness of cylindrical member having recessed groove |
| CN101393004A (en) * | 2006-12-27 | 2009-03-25 | 刘其和 | Special caliper for shaft key groove |
| CN201628524U (en) * | 2010-02-11 | 2010-11-10 | 白介明 | Vernier caliper for degree of keyway symmetry |
| CN102261885A (en) * | 2011-04-20 | 2011-11-30 | 徐州工业职业技术学院 | Device for measuring key slot symmetry degree of shaft |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245281A (en) * | 2013-05-03 | 2013-08-14 | 徐州工业职业技术学院 | Device and method for measuring symmetry degree of key groove of shaft |
| CN103424059A (en) * | 2013-08-19 | 2013-12-04 | 徐州工业职业技术学院 | Symmetry measuring equipment for hole and key groove |
| CN103424059B (en) * | 2013-08-19 | 2015-11-11 | 徐州工业职业技术学院 | Hole key-groove symmetry tester |
| CN105509594A (en) * | 2015-11-27 | 2016-04-20 | 广东长盈精密技术有限公司 | Measurement hook pin and measurement method of groove |
| CN107044814A (en) * | 2017-01-20 | 2017-08-15 | 中国电子科技集团公司第十四研究所 | Device and its measuring method during a kind of worm gear teeth is axially surveyed |
| CN107044814B (en) * | 2017-01-20 | 2023-02-28 | 中国电子科技集团公司第十四研究所 | Measuring method of worm gear tooth axial centering device |
| CN107990813A (en) * | 2017-11-24 | 2018-05-04 | 四川凌峰航空液压机械有限公司 | The detection method of shaft end rectangle keyway plane symmetry site error |
| CN109579653A (en) * | 2018-11-30 | 2019-04-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of lengthening lever dial framework |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |