CN103776342A - Peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method - Google Patents
Peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method Download PDFInfo
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- CN103776342A CN103776342A CN201210406702.0A CN201210406702A CN103776342A CN 103776342 A CN103776342 A CN 103776342A CN 201210406702 A CN201210406702 A CN 201210406702A CN 103776342 A CN103776342 A CN 103776342A
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- peach
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method. According to the measurement method, the assembly balls of two peach-shaped-raceway bearings are selected as auxiliary measurement balls, the diameter of the measurement ball is d1, the radius r is a half of d1, gauge blocks with the height delta H which is equal to a half of d1 are selected as weight blocks, alpha is used to represent the included angle between the connecting line of peach-shaped-raceway bearing inner sleeve angle contact point and the center of the assembly ball and a center connecting line of the two assembly balls, an internal plane hook is used to measure the largest size K value between two points on two assembly balls on a horizontal length measuring instrument when the bearings are assembled, and a peach-shaped-raceway bearing inner sleeve angle contact point diameter d=K-2r-2r cos alpha=K-2r(1+ cos alpha)=K-d1(1+ cos alpha) can be calculated. By using the above measurement method, the diameter of a peach-shaped-raceway bearing inner sleeve angle contact point can be accurately measured, and the operation is simple.
Description
Technical field
The present invention relates to engineering measuring technology field, especially a kind of measuring method of peach-shaped ditch bearing inner sleeve angular contact spot diameter.
Background technology
In engineering field, often can use a kind of 4 special angular contact angular contact ball bearings, its ditch type is peach-shaped, outer fissure is intersected and is formed sharp bottom of trench by two identical semi arches; Septal fossula is made up of two identical half-turns, and " peach-shaped ditch " similar to outer fissure ditch shape, referred to as peach-shaped ditch bearing.
The diameter of peach-shaped ditch bearing inner sleeve angular contact spot pressure, needed critical size while being this bearing of design, and because its ditch shape is special, so can not measure by the method for general angular contact bearing.
Summary of the invention
The problem running into when solving the measurement of measuring peach-shaped ditch bearing inner sleeve angular contact spot diameter, the invention provides a kind of measuring method, and the method can accurately be measured the diameter of peach-shaped ditch bearing inner sleeve corner connection contact.
The present invention solves the technical scheme that its technical matters takes: select the assembling ball of two peach-shaped ditch bearings as subsidiary ball, its diameter is designated as d
1, radius r=d
1/ 2, choosing height Δ H=d
1/ 2 gauge block is as dosage piece, represent that with α the line and two of peach-shaped ditch bearing inner sleeve corner connection contact and the assembling ball centre of sphere assembles the angle of ball lines of centres, measure bearing assemble by interior flat test hook on horizontal length measuring machine time, about the full-size K value of distance between two points on two assembling balls of peach-shaped ditch bearing center symmetry, can derive peach-shaped ditch bearing inner sleeve angular contact spot diameter d=K-2r-2rcos α=K-2r (1+cos α)=K-d
1(1+cos α).
The invention has the beneficial effects as follows: can accurately measure the diameter of peach-shaped ditch bearing inner sleeve corner connection contact, and simple to operate.
Accompanying drawing explanation
Fig. 1 is that dosage piece is selected schematic diagram.
Fig. 2 is peach-shaped ditch bearing inner sleeve angular contact spot diameter instrumentation plan.
In figure 1, peach-shaped ditch bearing inner sleeve, 2, assembling ball, 3, dosage piece, 4, horizontal length measuring machine.
Measure the selection with curvature ball: it is first to choose several ditch curvature models that substantially meet ditch shape that classic method is selected curvature ball, carefully under light, choose again the ball model meeting most with ditch shape, be bead model bottom of trench light tight (contact) both sides printing opacities, large ball model bottom of trench printing opacity (not contacting) both sides are light tight, because the bottom of trench of peach-shaped ditch bearing is sharp, no matter be to carry out printing opacity with large or little ball model to see, bottom of trench all can be because not contacting printing opacity, can not find the ball model that meets ditch shape, so can not select ball model as subsidiary ball by this way of scraping look, theoretically, a set of qualified bearing finished products, its pressure angle contact point should overlap with the pressure angle contact point designing on drawing, that is to say, in the ideal situation, contact point when assembling ball reality is rotated in complete bearing should be just the spot pressure of the contact angle of layout design, so can adopt assembling ball as subsidiary ball.
Apolegamy gauge block: because two and half inner rings are after bearing pack installs to together, both ends of the surface contact, and raceway circular arc symmetry in two halves inner ring, can find out, the centre of sphere of assembling ball is on the bottom of trench extended line of " peach-shaped ditch ", be on the extended line of two halves inner ring surface of contact, as shown in Figure 1, the height that can match gauge block is Δ H=assembling bulb diameter d
1/ 2.
The dosage piece that is Δ H with choose two assembling balls and two groups of height is as subsidiary part, on horizontal length measuring machine, measure about the ultimate range K value of 2 on two assembling balls of peach-shaped ditch bearing center symmetry, represent that with α the line and two of peach-shaped ditch bearing inner sleeve corner connection contact and the assembling ball centre of sphere assembles the angle of ball lines of centres, r represents to assemble the radius of ball, d
1represent the diameter of assembling ball, can obtain diameter d=K-2r-2rcos α=K-2r (1+cos α)=K-d of peach-shaped ditch bearing inner sleeve corner connection contact
1(1+cos α).
Such scheme industry technician can realize by industry technology means.
Claims (1)
1. a measuring method for peach-shaped ditch bearing inner sleeve angular contact spot diameter, is used for measuring peach-shaped ditch bearing inner sleeve angular contact spot diameter, it is characterized in that: select the assembling ball of two peach-shaped ditch bearings as subsidiary ball, its diameter is designated as d
1, radius r=d
1/ 2, choosing height Δ H=d
1/ 2 gauge block is as dosage piece, represent that with α the line and two of peach-shaped ditch bearing inner sleeve corner connection contact and the assembling ball centre of sphere assembles the angle of ball lines of centres, measure bearing assemble by interior flat test hook on horizontal length measuring machine time, about the full-size K value of 2 distances on two assembling balls of peach-shaped ditch bearing center symmetry, can obtain peach-shaped ditch bearing inner sleeve angular contact spot diameter is d=K-2r-2rcos α=K-2r (1+cos α)=K-d
1(1+cos α).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406702.0A CN103776342A (en) | 2012-10-23 | 2012-10-23 | Peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406702.0A CN103776342A (en) | 2012-10-23 | 2012-10-23 | Peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103776342A true CN103776342A (en) | 2014-05-07 |
Family
ID=50568876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210406702.0A Pending CN103776342A (en) | 2012-10-23 | 2012-10-23 | Peach-shaped-raceway bearing inner sleeve angle contact point diameter measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103776342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165566A (en) * | 2014-07-18 | 2014-11-26 | 苏州市职业大学 | Detection apparatus of diameter and roundness of circular conical surface and detection method thereof |
| CN104180787A (en) * | 2014-07-18 | 2014-12-03 | 苏州市职业大学 | Detection device for internal and external conical surface diameters and circularities and detection method thereof |
-
2012
- 2012-10-23 CN CN201210406702.0A patent/CN103776342A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165566A (en) * | 2014-07-18 | 2014-11-26 | 苏州市职业大学 | Detection apparatus of diameter and roundness of circular conical surface and detection method thereof |
| CN104180787A (en) * | 2014-07-18 | 2014-12-03 | 苏州市职业大学 | Detection device for internal and external conical surface diameters and circularities and detection method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |