CN202661009U - Instrument for measuring width of arc tooth slots of internal gear and internal spline - Google Patents
Instrument for measuring width of arc tooth slots of internal gear and internal spline Download PDFInfo
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- CN202661009U CN202661009U CN2012202606949U CN201220260694U CN202661009U CN 202661009 U CN202661009 U CN 202661009U CN 2012202606949 U CN2012202606949 U CN 2012202606949U CN 201220260694 U CN201220260694 U CN 201220260694U CN 202661009 U CN202661009 U CN 202661009U
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Abstract
The utility model relates to an instrument for measuring the width of arc tooth slots of an internal gear and an internal spline. The instrument comprises an upper wedge block and a lower wedge block, wherein the pair of wedge blocks is flat-bottomed and are provided with the same inclination-angle slopes, the inclination-angle slope of one wedge block is provided with a dovetail slot, the inclination-angle slop of the other wedge block is provided with a dovetail plate corresponding to the dovetail slot, the root part of the dovetail plate and the tail corner part of the dovetail slot are provided with grinding undercuts, the wedge block with the dovetail plate is inserted into the wedge block with the dovetail slot to constitute a sliding pair. The instrument disclosed by the utility model has the following advantages: (1) the upper and lower wedge blocks in one pair constitute a pair of sliding pair, and irrespective of the movement of the wedge blocks, the two flat bottoms are always kept parallel, so that the basic requirements for measuring the internal gear/internal spline are met; and (2) the distance between the two flat bottoms can be read directly by means of scale traces at a sliding joint between the upper wedge block and the lower wedge block, so that the accuracy and the stability are guaranteed for measurement. The instrument disclosed by the utility model is novel in structure and convenient to use, and can be widely applied to measurement for identification of distance between sample rods of the internal gears and various internal splines and for batch field inspection in a workshop.
Description
Technical field:
The utility model relates to a kind of measuring instrument, especially relates to a kind of annular wheel and female spline curved tooth groove width measuring instrument.
Background technology:
Involute internal gear or various female spline flank profil, reference circle place curved tooth groove width (being called for short the curved tooth groove width) are whether the inside and outside gear engagement of relation is reasonable, and whether inside and outside spline fitted accurate vital structural parameters.Because this value is arc length, can't directly measure, after series of computation, usually indirectly measure and assurance with corresponding interrod spacing.The interrod spacing of existing involute internal gear and various female splines is general to adopt two kinds of following methods to measure: a kind ofly be, first the length bar of two same diameter is inserted respectively in tested annular wheel or corresponding two teeth groove of female spline, then the standard block gauge of various different sizes and size is inserted respectively between two length bars, progressively stack or minimizing, repeatedly examination gathers together and adjusts, if just contact with two length bars, these standard block gauge sums interrod spacing that is this annular wheel or female spline then; Another kind is also first the length bar of two identical diameters to be inserted in corresponding two teeth groove of tested annular wheel or female spline, directly by the distance between vernier caliper measurement two length bars.Above-mentioned two kinds of measuring methods have following weak point: 1) although the measurement of first method is more accurate, to measure efficient too low because of too cumbersome, so is not suitable for the check of producing in batches; 2) measurement of second method, owing to be subjected to the impact of human factor, centering is poor, is difficult to measure accurately, and measuring error is very large, and particularly reproducibility error is also very large, and is very unstable, and measuring accuracy is difficult to reach requirement.
The utility model content:
The purpose of this utility model be provide for the prior art weak point a kind of easy to operate, measure accurately, annular wheel and female spline curved tooth groove width measuring instrument that efficient is high.
The purpose of this utility model is to realize by following measures: a kind of annular wheel and female spline curved tooth groove width measuring instrument, it is characterized in that, it comprises a pair of flat, as to reach the each other up/down on inclined-plane, the same tilt angle wedge that has, wherein one inclined-plane, pitch angle is provided with dovetail groove, the inclined-plane, pitch angle of another piece is provided with corresponding with it coattail board, the caudal horn section of the root of described coattail board and dovetail groove is provided with grinding undercut, and the wedge that is provided with coattail board inserts the slippage pair that partners in the wedge that is provided with dovetail groove.
The flat chamfering that is equipped with of the wedge of described a pair of each other up/down.
Described pitch angle is 16～24 °.
The wedge of described a pair of each other up/down has identical thickness, is carved with respectively the scale trace at the sidewall slippage seam place of up/down wedge.
Compared with prior art, annular wheel and the female spline curved tooth groove width measuring instrument that the utility model proposes have been adopted, has following advantage: 1) two wedge of up/down slippage pairs that partner each other, in any case mobile two flatly remain parallel, have satisfied the basic demand that annular wheel/female spline is measured; 2) the scale trace at the wedge slippage seam place of up/down can directly be read two flat distance, guarantees the Stability and veracity of measuring.The utility model novel structure, easy to use, the on-the-spot check in batches of evaluation and workshop that can be widely used in measuring annular wheel and various female spline exemplar interrod spacing sizes.
Description of drawings:
Fig. 1 is an embodiment synoptic diagram that the utility model proposes.
Fig. 2 a is that wedge synoptic diagram, Fig. 2 b that Fig. 1 embodiment is provided with coattail board is Fig. 2 a A-A sectional view.
Fig. 3 a is that wedge synoptic diagram, Fig. 3 b that Fig. 1 embodiment is provided with dovetail groove is Fig. 3 a B-B sectional view.
Fig. 4 is the synoptic diagram of Fig. 1 examples measure female spline interrod spacing.
Embodiment:
Below in conjunction with accompanying drawing embodiment is elaborated: in Fig. 1～enforcement illustration of the present utility model shown in Figure 3, a kind of annular wheel and female spline curved tooth groove width measuring instrument, it comprises: a pair of have flat, and the wedge of the each other up/down on inclined-plane, same tilt angle, wherein the inclined-plane, pitch angle of a wedge 2 is provided with dovetail groove 21, the inclined-plane, pitch angle of another piece wedge 1 is provided with corresponding with it coattail board 12, the caudal horn section of the root of described coattail board and dovetail groove is provided with grinding undercut 3, and the wedge 1 that is provided with coattail board inserts the slippage pair that partners in the wedge 2 that is provided with dovetail groove.Because the up/down wedge has identical pitch angle, so in any case slippage, the flat of up/down wedge remains parallel.Described pitch angle is 16～24 °, preferred 20 ° of present embodiment.
The utility model is further taked following measure:
The flat chamfering that is equipped with of the wedge of described a pair of each other up/down.Because flat is measurement plane, during measuring instrument was packed annular wheel or female spline smoothly into during for measurement, present embodiment was provided with 45 ° of chamferings of wedge thickness 1/4.
The wedge of described a pair of each other up/down has identical thickness, is carved with respectively the scale trace at the sidewall slippage seam place of up/down wedge.The scale trace is for the distance of wedge between flat of reflection up/down, and is the same with micrometer callipers, can directly read two distances between flat.
The utility model is like this work: using method of the present utility model as shown in Figure 4.At first with two as calculated and the identical length bar of diameter insert in measured workpiece internal tooth or corresponding two teeth groove of female spline, if the even number tooth, two length bars are symmetrical the placement relatively; If the odd number tooth should differ from a tooth with the even number tooth and place.Then, measuring instrument is put between two length bars, the two measurement plates that relatively move are to adjust the distance of two measurement planar base surfaces.When moving to two when measuring planar base surfaces and contacting with two length bars respectively, by distance and the reading of outside micrometer or vernier caliper measurement two measurement planes, also can read two distances between flat by measuring instrument self and scale.
The above has described embodiment of the present utility model by reference to the accompanying drawings; the structure that embodiment provides does not consist of restriction of the present utility model, and those skilled in the art make within the scope of the appended claims various distortion or revise all in protection domain in this area.
Claims (4)
1. an annular wheel and female spline curved tooth groove width measuring instrument, it is characterized in that, it comprises a pair of flat, as to reach the each other up/down on inclined-plane, the same tilt angle wedge that has, wherein one inclined-plane, pitch angle is provided with dovetail groove, the inclined-plane, pitch angle of another piece is provided with corresponding with it coattail board, the caudal horn section of the root of described coattail board and dovetail groove is provided with grinding undercut, and the wedge that is provided with coattail board inserts the slippage pair that partners in the wedge that is provided with dovetail groove.
2. annular wheel according to claim 1 and female spline curved tooth groove width measuring instrument is characterized in that, the flat chamfering that is equipped with of the wedge of described a pair of each other up/down.
3. annular wheel according to claim 1 and 2 and female spline curved tooth groove width measuring instrument is characterized in that described pitch angle is 16～24 °.
4. annular wheel according to claim 1 and 2 and female spline curved tooth groove width measuring instrument is characterized in that the wedge of described a pair of each other up/down has identical thickness, are carved with respectively the scale trace at the sidewall slippage seam place of up/down wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202606949U CN202661009U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring width of arc tooth slots of internal gear and internal spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202606949U CN202661009U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring width of arc tooth slots of internal gear and internal spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661009U true CN202661009U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202606949U Expired - Fee Related CN202661009U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring width of arc tooth slots of internal gear and internal spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661009U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525485A (en) * | 2017-08-08 | 2017-12-29 | 重庆清平机械有限责任公司 | Internal helical gear rod measurement method for distance |
| CN108955488A (en) * | 2018-05-28 | 2018-12-07 | 王清凤 | A kind of internal gear angle, the measuring device for connecting distance and tooth pitch |
-
2012
- 2012-06-05 CN CN2012202606949U patent/CN202661009U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525485A (en) * | 2017-08-08 | 2017-12-29 | 重庆清平机械有限责任公司 | Internal helical gear rod measurement method for distance |
| CN107525485B (en) * | 2017-08-08 | 2020-05-29 | 重庆清平机械有限责任公司 | Inner helical gear bar spacing measuring method |
| CN108955488A (en) * | 2018-05-28 | 2018-12-07 | 王清凤 | A kind of internal gear angle, the measuring device for connecting distance and tooth pitch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |