CN101446479B - Meshing gear centertocenter detection scale - Google Patents
Meshing gear centertocenter detection scale Download PDFInfo
- Publication number
- CN101446479B CN101446479B CN 200810217936 CN200810217936A CN101446479B CN 101446479 B CN101446479 B CN 101446479B CN 200810217936 CN200810217936 CN 200810217936 CN 200810217936 A CN200810217936 A CN 200810217936A CN 101446479 B CN101446479 B CN 101446479B
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- Prior art keywords
- circular arc
- meshing gear
- scale
- centertocenter
- centre distance
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Abstract
The invention discloses a meshing gear centertocenter detection scale which comprises a scale plate. One side of the ruler plate is provided with a concave contour line which comprises a first circular arc and a second circular arc. Centers of the first circular arc and the second circular arc are both arranged on an endpoint connecting line between two ends of the concave contour line. The distance between the center of the first circular arc and the center of the second circular arc is equal to the sum of the radium of a reference circle of the first circular arc and the radium of a reference circle of the second circular arc. The meshing gear centertocenter detection scale changes a linear laminating alignment way of a conventional measurement tool, adopts an arc laminating alignment working way and provides a fast and accurate measurement tool for the measurement of the meshing gear centertocenter. The scale can also be applied to the centertocenter detection of a transmission pulley, a sprocket and an attrition wheel. Therefore, the scale is a great progress in gear centertocenter detection tools.
Description
Technical field
The present invention relates to survey instrument, be specifically related to a kind of meshing gear centre distance and detect scale.
Background technology
As shown in Figure 1, digital irradiation photography system comprises column 1 and UC arm 2, at the two ends of UC arm 2 bulb 3 and DR detector 4 is installed respectively, and UC arm 2 can be according to the needs at position that patient photographs along column vertical movement about in the of 1.Bulb 3 emission X ray penetrate human body and form image, receive through the DR detector 4 of UC arm 2 opposite sides, convert digital signal to, are transferred on the display of computer and generate inside of human body structure image, are used for patient's inspection, diagnosis.
As shown in Figures 2 and 3, what drive 2 motions of UC arm is transmission component 5, comprising intermeshing gear wheel 51 and pinion wheel 52.
The centre distance of gear wheel 51 and pinion wheel 52 is a key parameter when digital irradiation photography system assembles, and the gear centre that guarantee practical set is apart from reaching theoretical calculated value.
Module: 2 gear wheels, 51 numbers of teeth: 120 pinion wheels, 52 numbers of teeth: 14:
Centre distance=modulus * (the gear wheel number of teeth+pinion wheel number of teeth)/2
＝2×(120+14)/2
＝134(mm)
Gear wheel 51 overall diameters=modulus * (the gear wheel number of teeth+2)=2 * (120+2)=244 (mm)
Pinion wheel 52 overall diameters=modulus * (the pinion wheel number of teeth+2)=2 * (14+2)=32 (mm)
If gear centre is apart from＞134 when producing assembling, then rotate transmission meeting appearance action and lag behind, or UC arm 2 double swerves location is bad, has a strong impact on clinical use and picture quality; If gear centre apart from＜134, then meshes tension between gear, the dumb inefficiency of transmission, over-burden for motor, and the motor feels hot that noise is big for the lighter, and the stuck motor that burns of weight person transmission is paralysed whole equipment.So will make gear centre when producing assembling apart from=134, but detection of gear centre distance, still there are not effective means at present, ruler and vernier caliper as routine can't detect, real current situation is that production millwright or quality inspection personnel only come detection of gear centre distance by range estimation or feel, actual gear centre distance is the unknown number that can't detect, and assembly quality can't guarantee.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of meshing gear centre distance and detects scale, overcomes the practical survey instrument of defective prior art does not have to(for) the centre distance of meshing gear.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of meshing gear centre distance detects scale, comprise a chi plate, one side of described chi plate has the recessed profile line, comprise first circular arc and second circular arc on the described recessed profile line, the center of circle of first circular arc and second circular arc all is positioned on the end points line at described recessed profile line two ends, and the distance between the center of circle of the center of circle of first circular arc and second circular arc equals the first circular arc place calibration radius of a circle and the second circular arc place calibration radius of a circle sum; The further optimization that described meshing gear centre distance detects scale is: the distance between the end points at described recessed profile line two ends equals module and gear centre 2 times of numerical value after the addition.
The further optimization that described meshing gear centre distance detects scale is: described chi plate is provided with the handle of hollow out.
The further optimization that described meshing gear centre distance detects scale is: first circular arc is made as the circular arc of 90 degree.
The further optimization that described meshing gear centre distance detects scale is: second circular arc is made as the circular arc of 90 degree.
Beneficial effect of the present invention: meshing gear centre distance of the present invention detects scale and has changed the fit mode of alignment of routine measurement instrument straight line, adopts the fit working method of alignment of camber line, for the measurement of meshing gear centre distance provides survey instrument fast and accurately.The centre distance that this scale also can be used for drive pulley, sprocket wheel, friction wheel detects, and is the much progress of gear centre apart from testing tool therefore.
Description of drawings
The present invention includes following accompanying drawing:
Fig. 1 is one of prior art digital irradiation photography system synoptic diagram;
Fig. 2 is two of a prior art digital irradiation photography system synoptic diagram;
Fig. 3 is a prior art digital irradiation photography system transmission component enlarged diagram;
Fig. 4 is the meshing gear synoptic diagram of prior art digital irradiation photography system transmission component;
Fig. 5 detects the scale synoptic diagram for meshing gear centre distance of the present invention;
Fig. 6 detects the synoptic diagram that scale is measured meshing gear centre distance for meshing gear centre distance of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 4, the meshing gear of digital irradiation photography system transmission component its centre distance in assembling process is difficult to measure.
As shown in Figure 5, meshing gear centre distance of the present invention detects scale, comprise a chi plate 6, one side of chi plate 6 has the recessed profile line, comprise circular arc 61 and circular arc 62 on the described recessed profile line, the center of circle 63 of circular arc 61 and the center of circle 64 of circular arc 62 all are positioned on the end points line at described recessed profile line two ends, and the distance between the center of circle 63 of circular arc 61 and the center of circle 64 of circular arc 62 equals circular arc 61 place calibration radius of a circles and circular arc 62 place calibration radius of a circle sums.
The further optimization that meshing gear centre distance of the present invention detects scale is the handle 65 that chi plate 6 is provided with hollow out.Circular arc 61 can be made as the circular arc of 90 degree, and circular arc 62 can be made as the circular arc of 90 degree.Distance between the end points at recessed profile line two ends equals module and gear centre 2 times of numerical value after the addition.
As shown in Figure 6, when producing assembling, the big arc that detects scale with meshing gear centre distance of the present invention is stuck on the gear wheel, little arc is stuck on the pinion wheel, make the external diameter of big arc and gear wheel fit, the external diameter of little arc and pinion wheel is fitted, and tightens the mount screw of fixed size gear then, and this moment, the centre distance of two gears was Theoretical Calculation centre distance value.
When quality inspection personnel detected this transmission gear centre distance, to gear wheel, little arc card was to pinion wheel with the big arc card of this scale, if can not fall the position, then centre distance is big; If it is little in the gapped then centre distance of centre distance direction to fall the back; Below either way will carry out the position adjustment to gear, make big arc and gear wheel external diameter fit, little arc and pinion wheel external diameter are fitted, and tighten all mount screws this moment, and then centre distance just is designed value.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations instructions of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (4)
1. a meshing gear centre distance detects scale, it is characterized in that: comprise a chi plate, one side of described chi plate has the recessed profile line, comprise first circular arc and second circular arc on the described recessed profile line, the center of circle of first circular arc and second circular arc all is positioned on the end points line at described recessed profile line two ends, and the distance between the center of circle of the center of circle of first circular arc and second circular arc equals the first circular arc place calibration radius of a circle and the second circular arc place calibration radius of a circle sum; Distance between the end points at described recessed profile line two ends equals module and gear centre 2 times of numerical value after the addition.
2. meshing gear centre distance according to claim 1 detects scale, and it is characterized in that: described chi plate is provided with the handle of hollow out.
3. meshing gear centre distance according to claim 2 detects scale, it is characterized in that: first circular arc is made as the circular arc of 90 degree.
4. meshing gear centre distance according to claim 3 detects scale, it is characterized in that: second circular arc is made as the circular arc of 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810217936 CN101446479B (en) | 2008-12-02 | 2008-12-02 | Meshing gear centertocenter detection scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810217936 CN101446479B (en) | 2008-12-02 | 2008-12-02 | Meshing gear centertocenter detection scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101446479A CN101446479A (en) | 2009-06-03 |
| CN101446479B true CN101446479B (en) | 2010-08-25 |
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ID=40742267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810217936 Expired - Fee Related CN101446479B (en) | 2008-12-02 | 2008-12-02 | Meshing gear centertocenter detection scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101446479B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2744801T3 (en) * | 2016-03-01 | 2020-02-26 | Gleason Metrology Systems Corp | Endless screw measurement |
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2008
- 2008-12-02 CN CN 200810217936 patent/CN101446479B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101446479A (en) | 2009-06-03 |
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Granted publication date: 20100825 Termination date: 20141202 |
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