CN86106759A - Common normal line of involute internal helical gear measuring method and device - Google Patents
Common normal line of involute internal helical gear measuring method and device Download PDFInfo
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- CN86106759A CN86106759A CN 86106759 CN86106759A CN86106759A CN 86106759 A CN86106759 A CN 86106759A CN 86106759 CN86106759 CN 86106759 CN 86106759 A CN86106759 A CN 86106759A CN 86106759 A CN86106759 A CN 86106759A
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Abstract
The invention solves the immeasurable difficult problem of common normal line of involute internal helical gear in the past.This measuring method and measurement mechanism be the measuring accuracy height not only, and be easy to operate, simple structure, be easy to make, if with the measuring head of the air-gauge measuring head as " T " shape architectural device, measuring accuracy is than the measuring accuracy height of clock gauge, and it is inaccessiable that this is that the outer rotor common normal is measured institute.The internal helical gear common normal that the present invention simultaneously points out is measured and can be subjected to transverse tooth thickness restriction (indivedual light-load gears, the facewidth is narrow, belongs to exception).
Description
The invention belongs to measuring method and device in the machine-building, in this device, mix different readers, can realize the measurement of common normal line of involute internal helical gear different accuracy.
In " involute cylindrical gear precision " (being referred to as eight or three standards traditionally) that Ministry of Machine-Building Industry announced in 8 or three years, error project regulation to driving of parallel axes involute cylindrical gear and gear pair thereof has 22, wherein there are 2 to be to use common normal, one common normal length change tolerance FW, it is a reflection transmitting movement accuracy, its two common normals average length tolerance TW, it is the reflection transverse tooth thickness, though other test item that also has of accuracy is transmitted in reflection, the reflection transverse tooth thickness other test item also arranged, but,, easy to operate because the common normal measurement is accurately, the measuring accuracy height, so, to industrial the most frequently used five, six, seven, the outer rotor of eight class precisions, the most frequently used detection means are that common normal is measured.As seen common normal is measured in the accuracy of gear is measured, and occupies crucial status.Yet the annular wheel precision measure only can be calculated transverse tooth thickness with the M value of striding the ball measurement at present, and the internal helical gear common normal is energy measurement not.The precision that all these must influence annular wheel processing must influence annular wheel and enter due usable range.Annular wheel is used wider, as in the mining machinery, on the automobile, middle-size and small-size marine diesel engine is first-class, the harmonic gear reducer that in space industry, is applied, constitute by annular wheel, and harmonic gear reducer has been used for general industry now, therefore, the internal helical gear measurement is of practical significance very much.Involute urve outer rotor common normal can be measured with common normal micrometer, because the flank of tooth of involute urve outer rotor can form correct tangent the contact with the measurement plane of measurer, the normal of the contact point on the gage measuring plane is exactly the normal of outer rotor like this.Annular wheel is quite different, and its flank of tooth all can not form tangent the contact with any physical plane, and the difficult point that the annular wheel common normal is measured just here.
Purpose of the present invention just is to provide a kind of measuring method and device to common normal line of involute internal helical gear.
The objective of the invention is to finish as follows: with a straight edge line on annular wheel-side profile of tooth flank of tooth is the contact jaw that common normal is measured, with the point on certain flank of tooth of opposite side profile of tooth is another contact jaw that common normal is measured, when with this straight edge line serving as the axle rotation, contact point on that flank of tooth of opposite side profile of tooth just takes place to change continuously, this continually varying point is a continually varying plane curve on the flank of tooth, and this just makes " scanning " to seek basic condition.In addition, to the distance that straight edge line following rule is arranged from certain instantaneous contact point of this one dimension contact point set: this distance changes with the variation of instantaneous contact point, and maximum value is arranged, when this distance was maximum value, the normal that passes through this instantaneous contact point of straight edge line was exactly the common normal of the involute urve internal helical gear flank of tooth.Therefore can adopt " a straight line-way of contact " and be the value that method that maximum value is sought in axis scanning is measured common normal with this straight edge line.Seek maximum value in order to realize " a straight line-way of contact " and axis oscillatory scanning, need a special device, structure as shown in Figure 2, the support bar that can be adjusted by the contact lever that has cutting edge LL, an angle (with the angle of contact lever) and extension elongation is formed with the reader that has measuring contacts.The present invention is referred to as " T " shape configuration structure to this structure of contact lever and support bar composition.
The two ends of common normal length measurement of the present invention, an end are the line contacts, and the other end is a contact, are that the axle swing is measured with the osculatory, and the distance during swing between osculatory and the contact point is changing, with the measured value of its maximum value as common normal.As the reader with clock gauge gauge outfit conduct " T " shape architectural device, then the measuring accuracy of common normal can reach the precision of present outer rotor common normal micrometer, i.e. the full accuracy of outer rotor common normal measurement at present.If with the measuring head of the air-gauge measuring head as " T " shape architectural device, measuring accuracy is than the measuring accuracy height of clock gauge.This is that outer rotor common normal measurement institute is inaccessiable.The internal helical gear common normal that the present invention points out is measured and can be subjected to facewidth restriction (indivedual light-load gear facewidth are narrow, belong to exception).The invention solves the immeasurable difficult problem of common normal line of involute internal helical gear in the past, this measuring method and measurement mechanism be the measuring accuracy height not only, easy to operate, simple structure, because interior spur gear is the special case of internal helical gear,, measuring method of the present invention and " T " shape architectural device measure so also can being directly used in interior spur gear common normal.
Fig. 1 is a common normal line of involute internal helical gear measuring method synoptic diagram.
Fig. 2, Fig. 3 are common normal line of involute internal helical gear measurement mechanism structural representations.
Fig. 4 is a spur gear common normal measurement mechanism structural representation in the involute urve.
Below in conjunction with accompanying drawing invention is further described:
Further describe the common normal line of involute internal helical gear measuring method in conjunction with Fig. 1.With the end of a straight edge line LL on the involute urve internal helical gear one side profile of tooth flank of tooth as the measurement contact, with the other end of the some A ' on some flank of tooth of opposite side profile of tooth as the measurement contact, the measuring contacts of the reader in " T " shape architectural device is contacted with this point, with this straight edge line serves as that axle rotates, continuous variation just takes place in the point on the opposite side profile of tooth flank of tooth, to the distance this straight edge line continuous variation takes place also from contact point, measure from the contact point to the straight edge line between the maximal value of distance as the measured value of common normal line of involute internal helical gear, AB is exactly the measured value of common normal line of involute internal helical gear here.
Accompanying drawing 2, a contact lever (1) that has cutting edge LL, contact lever (1) is connected an end of the support bar (2) that an angle (with contact lever (1) angle) and extension elongation can adjust with trip bolt, a reader (3) that has measuring contacts A, the table bar of reader (3) is connected the other end of support bar (2) with trip bolt (5), here the table bar of reader (3) must be parallel to contact lever (1) cutting edge LL after being fixed and locating, the length of the part of support bar (2) between reader (3) and contact lever (1) can be adjusted, after adjusting, dead with trip bolt (4) pin.The adjustment of " T " shape architectural device: the angle that will adjust a lower support bar (2) before using according to the Base spiral angle of tested gear, make support bar (2) and contact lever (1) angle near the complementary angle of Base spiral angle for well, if but this angle has error, do not influence the accuracy of final measurement; You prepare to use according to the modulus of tested gear with when measuring strides the extension elongation that the number of teeth is adjusted support bar (2), use length-measuring appliance (as length micrometer) then, proofread the zero point of reader (3) by measurement cutting edge LL to distance between the gauge head A of reader (3).The use of " T " shape architectural device: the semisphere bar head that pinches the two ends of contact lever (1) during measurement with thumb and middle finger, and the cutting edge LL that makes contact lever (1) is line with a certain side profile of tooth of the gear flank of tooth and contacts location (promptly contacting with straight edge line), and the measuring head A of reader (3) is contacted with the opposite side profile of tooth flank of tooth.Serve as that axle is swung measurement with cutting edge LL then, measure on the flank of tooth straight edge line to the maximum value of the distance between the opposite side flank of tooth and the gauge head contact point, with the measured value of this maximum value as base tangent length.This value is reflected as AB among Fig. 2 on " T " shape architectural device.
Accompanying drawing 4 in conjunction with the accompanying drawings 3,, a contact lever (1) that has cutting edge LL, an adjustable support bar of extension elongation (2), between contact lever (1) and the support bar (2) is fixed angle, accompanying drawing 3 is an acute angle, accompanying drawing 4 is the right angle, a reader (3) that has measuring head A, and the table bar of reader (3) and support bar (2) are locked with trip bolt.Here the table bar of reader (3) is parallel with the cutting edge LL of contact lever (1).The adjustment of " T " shape architectural device: you prepare to use according to the modulus of tested gear with when measuring strides the extension elongation that the number of teeth is adjusted support bar (2), use length-measuring appliance (as length micrometer) then, proofread the zero point of reader (3) by measurement cutting edge LL to the distance between the measuring head A of reader (3).The use of " T " shape architectural device: the two ends semisphere bar head that pinches contact lever (1) during measurement with thumb and middle finger, and the cutting edge that makes contact lever (1) is line with a certain side profile of tooth of the gear flank of tooth and contacts location (promptly contacting with straight edge line), and the measuring head A of reader (3) is contacted with the opposite side profile of tooth flank of tooth.Serve as that axle is swung measurement with cutting edge LL then, measure on the flank of tooth straight edge line to the maximum value of distance between the opposite side flank of tooth and the measuring head contact point.With the measured value of this maximum value as base tangent length.This value is reflected as AB among Fig. 3 on " T " shape configuration measurer.
Claims (5)
1, a kind of common normal line of involute internal helical gear measuring method.It is characterized in that with a straight edge line LL on the involute urve internal helical gear one side profile of tooth flank of tooth as an end of measuring contact, with the other end of the some A ' on certain flank of tooth of opposite side profile of tooth as the measurement contact, with this straight edge line LL is the axle swing, and continuous variation just takes place the contact point on the opposite side profile of tooth flank of tooth.To the distance this straight edge line LL continuous variation takes place also from contact point A ', measure from the contact point to the straight edge line between the maximal value AB of distance as the measured value of common normal line of involute internal helical gear.
2, a kind of common normal line of involute internal helical gear measurement mechanism, it is characterized in that being connected with trip bolt (4) end of support bar (2) by a contact lever (1) that has a cutting edge LL, a reader (3) that has measuring contacts A, the table bar of reader (3) is connected the other end of support bar (2) with trip bolt (5).
3, involute urve internal helical gear measurement mechanism as claimed in claim 2, it is characterized in that the angle between said support bar (2) and the contact lever (1) and the length of the part of support bar (2) between reader (3) and contact lever (1) can adjust, after adjusting, dead with trip bolt (4) pin.
4, involute urve internal helical gear measurement mechanism as claimed in claim 2, it is characterized in that the angle between said support bar (2) and the contact lever (1) fixes, the length of the part of support bar (2) between reader (3) and contact lever (1) can be adjusted, after adjusting, dead with trip bolt (4) pin.
5, involute urve internal helical gear measurement mechanism as claimed in claim 2, it is characterized in that the angle between said support bar (2) and the contact lever (1) is the right angle, the length of support bar (2) between reader (3) and contact lever (1) can be adjusted, after adjusting, dead with trip bolt (4) pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106759 CN86106759A (en) | 1986-10-18 | 1986-10-18 | Common normal line of involute internal helical gear measuring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106759 CN86106759A (en) | 1986-10-18 | 1986-10-18 | Common normal line of involute internal helical gear measuring method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86106759A true CN86106759A (en) | 1987-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86106759 Pending CN86106759A (en) | 1986-10-18 | 1986-10-18 | Common normal line of involute internal helical gear measuring method and device |
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| Country | Link |
|---|---|
| CN (1) | CN86106759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840815A (en) * | 2012-08-21 | 2012-12-26 | 金华市高级技工学校 | Assembled type multifunctional workpiece detector for fitter |
| CN106323142A (en) * | 2015-06-17 | 2017-01-11 | 中冶宝钢技术服务有限公司 | Light-emitting type digital display furnace roller precision measurement device |
| CN108061651A (en) * | 2017-12-21 | 2018-05-22 | 大连理工大学 | A kind of common normals the involute master of gear such as self installation benchmark |
-
1986
- 1986-10-18 CN CN 86106759 patent/CN86106759A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840815A (en) * | 2012-08-21 | 2012-12-26 | 金华市高级技工学校 | Assembled type multifunctional workpiece detector for fitter |
| CN102840815B (en) * | 2012-08-21 | 2015-02-04 | 金华市高级技工学校 | Assembled type multifunctional workpiece detector for fitter |
| CN106323142A (en) * | 2015-06-17 | 2017-01-11 | 中冶宝钢技术服务有限公司 | Light-emitting type digital display furnace roller precision measurement device |
| CN106323142B (en) * | 2015-06-17 | 2019-01-22 | 中冶宝钢技术服务有限公司 | Illuminated digital display furnace roller accuracy measuring device |
| CN108061651A (en) * | 2017-12-21 | 2018-05-22 | 大连理工大学 | A kind of common normals the involute master of gear such as self installation benchmark |
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