CN112985233A - Detection measuring tool for measuring diameter of odd-numbered teeth of gear - Google Patents
Detection measuring tool for measuring diameter of odd-numbered teeth of gear Download PDFInfo
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- CN112985233A CN112985233A CN202110509349.8A CN202110509349A CN112985233A CN 112985233 A CN112985233 A CN 112985233A CN 202110509349 A CN202110509349 A CN 202110509349A CN 112985233 A CN112985233 A CN 112985233A
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- measuring
- mandrel
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- diameter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a detection measuring tool for measuring the diameter of odd-numbered teeth of a gear, and solves the technical problem that the repeated measurement accuracy cannot be ensured when the gear measuring tool in the prior art is used for batch detection. The measuring device comprises two apexes (4), a mandrel (3) is arranged between the two apexes (4), a measuring block (1) and a discharging nut (2) are arranged on the mandrel (3), and two dial indicators (5) are arranged on the side edge of the measuring block (1); the axes of the two apexes (4) and the mandrel (3) are overlapped, and the axes of the mandrel (3) and the gauge block (1) are overlapped; the middle part of the mandrel (3) is a conical shaft, the gauge block (1) is provided with a first conical hole, and the size of the first conical hole is matched with that of the conical shaft. The invention takes the gauge block (1) as a measuring standard, measures the diameters of the addendum circle and the dedendum circle of the gear with odd teeth through the two dial indicators (5), realizes the batch detection of the gears, and has high repeated measurement accuracy.
Description
Technical Field
The invention relates to a measuring tool for a gear with odd number of teeth, in particular to a measuring tool for measuring the diameter of the odd number of teeth of the gear.
Background
Gear class part is aeroengine's key part, works under the operational environment under high-speed rotation, variable load, therefore requires that the vibration is little and various cooperation size precision are high, but the measurement degree of difficulty to gear class part is great, and cooperation size precision is low, leads to aeroengine's fail safe nature and life to receive the influence.
In gear parts, odd-number-tooth gears are asymmetric in the diameter direction, the maximum diameter measurement point cannot be found by direct measurement, the conventional measuring tool cannot directly measure, the three-coordinate measuring efficiency is low, and the cost is high, so that the special measuring tool for the odd-number-tooth gears is frequently used.
For example, the micrometer with the application number of CN202020225709.2 for measuring the diameters of the addendum circle and the dedendum circle of the odd-number toothed gear comprises a micrometer frame, a differential head fixedly connected to the micrometer frame, a left movable tip, a left locking device, a right movable tip and a right locking device; the main scale comprises a differential head, a fixed sleeve and a measuring screw rod; the ruler frame is U-shaped and comprises a transverse rod part, a left vertical rod part and a right vertical rod part, wherein a through hole with the axial direction in the vertical direction is formed in the transverse rod part, a fixing sleeve is fixed at the upper end of the through hole, a measuring screw rod extends out of the lower end of the through hole, and a measuring screw rod locking device used for fixing the measuring screw rod and the transverse rod is further arranged on the transverse rod; however, the micrometer cannot guarantee the accuracy of repeated measurement in batch detection.
Disclosure of Invention
The invention aims to provide a detection measuring tool for measuring the diameter of odd-numbered teeth of a gear, and aims to solve the technical problem that the repeated measurement accuracy cannot be ensured when the gear measuring tool in the prior art is used for batch detection. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the detection measuring tool for measuring the odd-number tooth diameter of the gear comprises two apexes, a mandrel is arranged between the two apexes, a measuring block and a discharging nut are arranged on the mandrel, and two dial indicators are arranged on the side edge of the measuring block.
The axes of the two apexes and the mandrel are overlapped, and the axes of the mandrel and the measuring block are overlapped.
The gauge block is a hollow stepped shaft.
The middle part of the mandrel is a conical shaft, the gauge block is provided with a first conical hole, and the size of the first conical hole is matched with that of the conical shaft.
Two ends of the mandrel are provided with a second conical hole.
The invention can at least produce the following technical effects:
according to the invention, the measuring block is used as a measuring reference, the diameters of the addendum circle and the dedendum circle of the gear with the odd number of teeth are measured through the two dial indicators, the gear batch detection is realized, and the repeated measurement accuracy is high.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the measurement of the embodiment of the present invention;
in the figure: 1-measuring blocks; 2-unloading the nut; 3-a mandrel; 4-top; 5-dial indicator; 6-workpiece.
Detailed Description
As shown in FIG. 1, the detection measuring tool for measuring the odd-number tooth diameter of the gear comprises two apexes 4, wherein a mandrel 3 and a workpiece 6 are arranged through the two apexes 4; a mandrel 3 is arranged between the two apexes 4, a gauge block 1 and a discharging nut 2 are arranged on the mandrel 3, and the discharging nut 2 is arranged to facilitate quick unloading of the gauge block 1; two dial indicators 5 are installed to the side of gage block 1, measure gage block 1 size through dial indicator 5.
As an alternative embodiment, the axes of the two apexes 4 and the mandrel 3 are coincident, and the axes of the mandrel 3 and the gauge block 1 are coincident, so that the mounting accuracy of the mandrel 3 and the gauge block 1 is ensured.
As an optional embodiment, the gauge block 1 is a hollow stepped shaft, the maximum shaft diameter dimension is the theoretical addendum circle diameter dimension D1 of the workpiece 6, the other shaft diameter dimension is the theoretical dedendum circle diameter dimension D2, the gauge blocks 1 are manufactured according to addendum circle and dedendum circle diameters to be measured, and the measured dimensions are quickly converted by selecting gauge blocks 1 of different specifications according to needs.
As an optional implementation manner, the middle part of the mandrel 3 is a tapered shaft, the gauge block 1 is provided with a first tapered hole, the size of the first tapered hole is matched with that of the tapered shaft, and the accuracy of the first tapered hole and the tapered shaft is high.
As an alternative embodiment, two tapered holes are formed at two ends of the mandrel 3, so that the mandrel is convenient to install between the two apexes 4.
The measuring method comprises the following steps:
the gauge block 1 is matched and fixed with the conical shaft through the first conical hole, and the mandrel 3 is positioned by using the two apexes 4; using a dial indicator 5 to perform meter striking on the surfaces of the position with the largest shaft diameter and the position with the other shaft diameter of the gauge block 1, fixing the meter striking position, reading scale values on the dial indicator 5, and taking out the mandrel 3; as shown in fig. 2, a workpiece 6 with odd-number gears is fixed between two tips 4 at the same position, and the pointer scale difference is calculated twice and recorded as M and N, so that the theoretical addendum circle diameter D1 is subtracted by twice M to obtain the actual addendum circle diameter D3; subtracting twice N from the theoretical tooth bottom circle diameter D2 to obtain the actual tooth bottom circle diameter D4; after the odd-tooth gear of one workpiece 6 is measured, the other workpiece 6 is replaced, so that the batch detection of the gears is realized, and the accuracy of repeated measurement is ensured.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (5)
1. The utility model provides a measure detection utensil of gear odd number tooth diameter which characterized in that: the measuring block comprises two apexes (4), a mandrel (3) is installed between the two apexes (4), a measuring block (1) and an unloading nut (2) are installed on the mandrel (3), and two dial indicators (5) are installed on the side edge of the measuring block (1).
2. The detecting and measuring tool for measuring the diameter of the odd-numbered teeth of the gear according to claim 1, wherein: the axes of the two apexes (4) and the mandrel (3) are overlapped, and the axes of the mandrel (3) and the gauge block (1) are overlapped.
3. The detecting and measuring tool for measuring the diameter of the odd-numbered teeth of the gear according to claim 1, wherein: the gauge block (1) is a hollow stepped shaft.
4. The detecting and measuring tool for measuring the diameter of the odd-numbered teeth of the gear according to claim 1, wherein: the middle part of the mandrel (3) is a conical shaft, the gauge block (1) is provided with a first conical hole, and the size of the first conical hole is matched with that of the conical shaft.
5. The detecting and measuring tool for measuring the diameter of the odd-numbered teeth of the gear according to claim 1, wherein: two ends of the mandrel (3) are provided with a second conical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509349.8A CN112985233A (en) | 2021-05-11 | 2021-05-11 | Detection measuring tool for measuring diameter of odd-numbered teeth of gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509349.8A CN112985233A (en) | 2021-05-11 | 2021-05-11 | Detection measuring tool for measuring diameter of odd-numbered teeth of gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112985233A true CN112985233A (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110509349.8A Pending CN112985233A (en) | 2021-05-11 | 2021-05-11 | Detection measuring tool for measuring diameter of odd-numbered teeth of gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN112985233A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024714U (en) * | 2011-01-29 | 2011-11-02 | 中国民用航空飞行学院 | Device for measuring axial-line heights of aeronautic piston engine crankshaft counterweight bushing holes |
| CN203744893U (en) * | 2014-03-26 | 2014-07-30 | 江苏新银叶传动机电有限公司 | Tool for detecting external diameter of odd number tooth |
| CN104251653A (en) * | 2014-09-26 | 2014-12-31 | 中色科技股份有限公司 | Device for measuring radial size of engaging type cutter disc of edge crushing machine |
| CN105371729A (en) * | 2015-11-28 | 2016-03-02 | 重庆市江津区禾丰机械有限公司 | Gear shaft odd-tooth addendum circle detector and use method thereof |
| CN209910557U (en) * | 2019-06-06 | 2020-01-07 | 荆州恒隆汽车零部件制造有限公司 | Auxiliary measuring device for gear shaft tooth root circle diameter |
| CN211452157U (en) * | 2020-02-28 | 2020-09-08 | 淮安信息职业技术学院 | Micrometer for measuring diameters of addendum circle and dedendum circle of gear with odd teeth |
-
2021
- 2021-05-11 CN CN202110509349.8A patent/CN112985233A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024714U (en) * | 2011-01-29 | 2011-11-02 | 中国民用航空飞行学院 | Device for measuring axial-line heights of aeronautic piston engine crankshaft counterweight bushing holes |
| CN203744893U (en) * | 2014-03-26 | 2014-07-30 | 江苏新银叶传动机电有限公司 | Tool for detecting external diameter of odd number tooth |
| CN104251653A (en) * | 2014-09-26 | 2014-12-31 | 中色科技股份有限公司 | Device for measuring radial size of engaging type cutter disc of edge crushing machine |
| CN105371729A (en) * | 2015-11-28 | 2016-03-02 | 重庆市江津区禾丰机械有限公司 | Gear shaft odd-tooth addendum circle detector and use method thereof |
| CN209910557U (en) * | 2019-06-06 | 2020-01-07 | 荆州恒隆汽车零部件制造有限公司 | Auxiliary measuring device for gear shaft tooth root circle diameter |
| CN211452157U (en) * | 2020-02-28 | 2020-09-08 | 淮安信息职业技术学院 | Micrometer for measuring diameters of addendum circle and dedendum circle of gear with odd teeth |
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