CN101799267B - A kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method - Google Patents

A kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method Download PDF

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Publication number
CN101799267B
CN101799267B CN201010127315.4A CN201010127315A CN101799267B CN 101799267 B CN101799267 B CN 101799267B CN 201010127315 A CN201010127315 A CN 201010127315A CN 101799267 B CN101799267 B CN 101799267B
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bar
measurement
ram
rotating shaft
crossfoot
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CN101799267A (en
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陈健康
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Shanghai Electric Group Shanghai Electric Machinery Co Ltd
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Shanghai Electric Group Shanghai Electric Machinery Co Ltd
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Abstract

The invention discloses a kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method, described measurement mechanism comprises chi bar, measures ram, support, dial gauge or clock gauge, described chi bar is made up of, in inverted L shape crossfoot bar and the miter square bar being vertically connected on crossfoot bar one end; Described measurement ram can horizontal be arranged on the crossfoot bar of described chi bar movably, and is locked on the crossfoot bar of described chi bar by one first lock-screw; Described support can be arranged on the miter square bar of described chi bar up or down, and is locked on the miter square bar of described chi bar by one second lock-screw; Described dial gauge or clock gauge are installed on the bracket by the 3rd lock-screw.Adopt the measurement mechanism for symmetry of rotary shaft key slot of the present invention, the measuring accuracy of symmetry of rotary shaft key slot improved and method is convenient, improve the efficiency of surveying work, solve traditional larger rotation shaft keyway symmetry measure in problem.

Description

A kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method
Technical field
The present invention relates to a kind of measurement mechanism, be specifically related to a kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method.
Background technology
Axial workpiece often needs process keyway, some keyway technical requirement is higher, has symmetry requirement, and usual keyway symmetry detects by special surveying instrument, also has the lathe of available processing keyway to carry out indirect detection.Special surveying instrument carries out that detection nature accuracy of detection is higher, and purchase cost is higher, and has certain environment for use, and testing conditions is harsh, and general manufacturer does not possess such testing conditions; As detected with the lathe of processing keyway, then because lathe itself has error, the data measured can not reflect the actual symmetry of keyway entirely truely, there is certain error, and also have when detecting and need take lathe, testing cost is very high.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention aims to provide a kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method, it can easy, keyway symmetry exactly in detection axis, to improve the efficiency of larger rotation shaft keyway symmetry measuring accuracy and surveying work, reduce the cost of surveying work.
A kind of technical scheme realizing above-mentioned purpose is: a kind of measurement mechanism for symmetry of rotary shaft key slot, comprises chi bar, measures ram, support, dial gauge or clock gauge, wherein:
Described chi bar is made up of, in inverted L shape crossfoot bar and the ruler bar being vertically connected on crossfoot bar one end;
Described measurement ram can horizontal be arranged on the crossfoot bar of described chi bar movably, and is locked on the crossfoot bar of described chi bar by one first lock-screw;
Described support can be arranged on the ruler bar of described chi bar up or down, and is locked on the ruler bar of described chi bar by one second lock-screw;
Described dial gauge or clock gauge are installed on the bracket by the 3rd lock-screw.
The above-mentioned measurement mechanism for symmetry of rotary shaft key slot, wherein: the surface of described crossfoot bar and ruler bar is equipped with size scale.
The another kind of technical scheme realizing above-mentioned purpose is: a kind of measuring method for symmetry of rotary shaft key slot, is executed in above-mentioned measurement mechanism, and described measuring method comprises the following steps:
Step one, selects width to be slightly less than the measurement ram of described rotating shaft width of keyway;
Step 2, first keeps described rotating shaft keyway vertically upward, is then inserted in rotating shaft keyway by measurement ram, and will measure ram and lean against the trough rim of the nearly described ruler bar side of rotating shaft keyway, and the base measuring ram is against on the base of rotating shaft keyway;
Step 3, first move horizontally crossfoot bar and move up and down described support simultaneously, make the cylindrical point of contact on the horizontal center line of the measuring head aligning rotating shaft of described dial gauge or clock gauge, then measuring on crossfoot bar and ruler bar that ram and support be locked in chi bar respectively, now read and record the measured value on dial gauge or clock gauge, completing first time measurement;
Step 4, keep the position of measurement ram and support and measurement mechanism is rotated 180 ° in the horizontal direction, again described measurement ram is leaned against the opposite side trough rim in rotating shaft keyway, the base measuring ram is against on the base of rotating shaft keyway, now read and record the measured value on dial gauge or clock gauge, completing second time and measure;
Step 5, carries out arithmetic mean by first time measured value with second time measured value, just can obtain the accurate measurements of the symmetry of described rotating shaft keyway.
Have employed of the present invention for after the measurement mechanism of symmetry of rotary shaft key slot and the technical scheme of measuring method, can easy, detect spindle keyway symmetry exactly, and method is simple, versatility is very large, does not take lathe during detection, all can detect any time, belong to the direct method of measurement, use cost is very low, and the measuring accuracy of large-scale and super-huge symmetry of rotary shaft key slot is much improved, its measuring accuracy can improve more than 80%, makes product quality guaranteed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the measurement mechanism for symmetry of rotary shaft key slot of the present invention.
Embodiment
In order to understand technical scheme of the present invention better, be also described in detail by reference to the accompanying drawings below by specific embodiment.
Refer to Fig. 1, the measurement mechanism for symmetry of rotary shaft key slot of the present invention, comprise chi bar 2, measure ram 3, support 4 and dial gauge or clock gauge 5, wherein,
Chi bar 2 is made up of, in inverted L shape crossfoot bar 21 and the ruler bar 22 being vertically connected on crossfoot bar 21 one end; The crossfoot bar 21 of chi bar 2 and ruler bar 22 are equipped with size scale 23,
Measure ram 3 can horizontal be arranged on movably on the crossfoot bar 21 of chi bar 2, and be locked on the crossfoot bar 21 of chi bar 2 by one first lock-screw 30;
Support 4 can be arranged on the ruler bar 22 of chi bar 2 up or down, and is locked on the ruler bar 22 of chi bar 2 by one second lock-screw 40;
Dial gauge or clock gauge 5 are arranged on support 4 by the 3rd lock-screw 50.
Measuring method for symmetry of rotary shaft key slot of the present invention comprises the following steps:
Step one, selects width to be slightly less than the measurement ram 3 of rotating shaft keyway 10 width;
Step 2, first keeps rotating shaft keyway 10 vertically upward, is then inserted in rotating shaft keyway 10 by measurement ram 3, and measurement ram 3 is leaned against the trough rim of nearly ruler bar 22 side of rotating shaft keyway 10, and the base measuring ram 3 is against on the base of rotating shaft keyway 10;
Step 3, first move horizontally crossfoot bar 21 and move up and down support 4 simultaneously, make the cylindrical point of contact on the horizontal center line of the measuring head aligning rotating shaft 1 of dial gauge or clock gauge 5, then respectively by the first lock-screw 30 and the second lock-screw 40 measuring on crossfoot bar 21 and ruler bar 22 that ram 3 and support 4 be locked in chi bar 2, now read and record the measured value on dial gauge or clock gauge 5, completing first time measurement;
Step 4, keep the position of measurement ram 3 and support 4 and measurement mechanism is rotated 180 ° in the horizontal direction, again measurement ram 3 is leaned against the opposite side trough rim in rotating shaft keyway 10, the base measuring ram 3 is against on the base of rotating shaft keyway 10, now read and record the measured value on dial gauge or clock gauge 5, completing second time and measure;
Step 5, carries out arithmetic mean by first time measured value with second time measured value, just can obtain the accurate measurements of rotating shaft keyway 10 symmetry.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.

Claims (1)

1. the measuring method for symmetry of rotary shaft key slot, be executed in measurement mechanism, this measurement mechanism comprises chi bar, measures ram, support, dial gauge or clock gauge, and described chi bar is made up of, in inverted L shape crossfoot bar and the ruler bar being vertically connected on crossfoot bar one end; Described measurement ram can horizontal be arranged on the crossfoot bar of described chi bar movably, and is locked on the crossfoot bar of described chi bar by one first lock-screw; Described support can be arranged on the ruler bar of described chi bar up or down, and is locked on the ruler bar of described chi bar by one second lock-screw; Described dial gauge or clock gauge are installed on the bracket by the 3rd lock-screw,
It is characterized in that, described measuring method comprises the following steps:
Step one, selects width to be slightly less than the measurement ram of described rotating shaft width of keyway;
Step 2, first keeps described rotating shaft keyway vertically upward, is then inserted in rotating shaft keyway by measurement ram, and will measure ram and lean against the trough rim of the nearly described ruler bar side of rotating shaft keyway, and the base measuring ram is against on the base of rotating shaft keyway;
Step 3, first move horizontally crossfoot bar and move up and down described support simultaneously, make the cylindrical point of contact on the horizontal center line of the measuring head aligning rotating shaft of described dial gauge or clock gauge, then measuring on crossfoot bar and ruler bar that ram and support be locked in chi bar respectively, now read and record the measured value on dial gauge or clock gauge, completing first time measurement;
Step 4, keep the position of measurement ram and support and measurement mechanism is rotated 180 ° in the horizontal direction, again described measurement ram is leaned against the opposite side trough rim in rotating shaft keyway, the base measuring ram is against on the base of rotating shaft keyway, now read and record the measured value on dial gauge or clock gauge, completing second time and measure;
Step 5, carries out arithmetic mean by first time measured value with second time measured value, just can obtain the accurate measurements of the symmetry of described rotating shaft keyway.
CN201010127315.4A 2010-03-19 2010-03-19 A kind of measurement mechanism for symmetry of rotary shaft key slot and measuring method Active CN101799267B (en)

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* Cited by examiner, † Cited by third party
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CN102252583A (en) * 2011-03-31 2011-11-23 桂林福达曲轴有限公司 Fixture for detecting symmetry degree of key slot of automobile engine crankshaft
CN102252582B (en) * 2011-04-27 2012-12-26 陈久智 Key groove detection tool
CN102589398A (en) * 2012-02-24 2012-07-18 桂林福达曲轴有限公司 Inspection device for measuring symmetry of crank journal pin hole to journal centre line and inspection method thereof
CN103411572A (en) * 2013-08-26 2013-11-27 成都添益天然气压缩机制造有限公司 Natural gas compressor piston rod runout measurement device
CN109827498A (en) * 2019-01-30 2019-05-31 上海新莲泵阀有限公司 The rapid measurement device of components symmetry
CN112097709B (en) * 2020-09-16 2021-11-16 江苏理工学院 Detection apparatus for keyway and height hole are measured

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CN101393004A (en) * 2006-12-27 2009-03-25 刘其和 Special caliper for shaft key groove
CN201212801Y (en) * 2008-06-25 2009-03-25 天津三五二二工厂 Axle keyway symmetry detector
CN201421320Y (en) * 2009-04-20 2010-03-10 无锡市中达电机有限公司 Motor rotating-shaft key-slot symmetry-degree measuring instrument
CN201680809U (en) * 2010-03-19 2010-12-22 上海电气集团上海电机厂有限公司 Device for measuring symmetry of rotary shaft key slot

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CN87200753U (en) * 1987-01-23 1987-11-04 天津发电设备厂 Measuring apparatus for symmetry of shaft key groove
RU1789849C (en) * 1987-09-08 1993-01-23 Научно-Производственное Объединение По Комплексному Технологическому Проектированию Станкостроительных Предприятий "Оргстанкимпром" Device for checking symmetry of keyway relative to shaft axis
SU1525430A1 (en) * 1987-09-18 1989-11-30 В. А. Озерский Device for measuring symmetry of shaft key slot
SU1585646A1 (en) * 1988-02-16 1990-08-15 Научно-Производственное Объединение "Внииредуктор" Device for checking symmetry of key slot of cylindrical shaft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1097888A1 (en) * 1982-09-27 1984-06-15 Рязанский Филиал Государственного Проектно-Технологического И Экспериментального Института "Оргстанкинпром" Device for measuring symmetry of shaft key slot
CN101393004A (en) * 2006-12-27 2009-03-25 刘其和 Special caliper for shaft key groove
CN201212801Y (en) * 2008-06-25 2009-03-25 天津三五二二工厂 Axle keyway symmetry detector
CN201421320Y (en) * 2009-04-20 2010-03-10 无锡市中达电机有限公司 Motor rotating-shaft key-slot symmetry-degree measuring instrument
CN201680809U (en) * 2010-03-19 2010-12-22 上海电气集团上海电机厂有限公司 Device for measuring symmetry of rotary shaft key slot

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