CN201449258U - Tooth surface roughness sensor - Google Patents
Tooth surface roughness sensor Download PDFInfo
- Publication number
- CN201449258U CN201449258U CN200820211691XU CN200820211691U CN201449258U CN 201449258 U CN201449258 U CN 201449258U CN 200820211691X U CN200820211691X U CN 200820211691XU CN 200820211691 U CN200820211691 U CN 200820211691U CN 201449258 U CN201449258 U CN 201449258U
- Authority
- CN
- China
- Prior art keywords
- top guide
- chaining pin
- tooth
- sensor
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a contact pin type sensor capable of collecting roughness signals of a tooth surface of a gear. A front end of a top guide of the sensor is wedge-shaped; a probe is spliced on a probe bracket taking the shape of a Chinese character 'zhi'; and a point of the probe and the lowest point of the top guide are positioned on the same line perpendicular to the measurement direction. By adopting the wedge-shaped top guide structure, the contact pin type sensor can deeply penetrate the tooth root of the gear for over 2 mm modulus to measure the contour of surface roughness of the curved surface. The utility model can solve the problem of collecting roughness contour of the curved surface with narrow space such as the tooth surface of the gear, side walls of a channel, the surface of a crankshaft.
Description
One, technical field
The utility model is the tooth-face roughness sensor, and it is used for the measurement of machine industry middle gear tooth-face roughness.Be specially the size and the shaped design of the top guide and the chaining pin support of sensor, can realize the measurement of modulus greater than the gear teeth face roughness of 2mm
Two, background technology
The gear teeth face roughness has very significant effects to the runnability of gear, so the prototype gear tooth-face roughness is requisite project in the gear detection.The contact pin type surfagauge is the key instrument that the gear teeth face roughness is accurately measured.
The flank of tooth of gear has two characteristics, and the one, the flank of tooth is curved surface normally; The 2nd, space, fine module gear tooth root place is less.The common sensor of contact pin type surfagauge can't satisfy flank of tooth Testing requirement usually, reason is: the common top guide sensor that has adopts leading header structure usually, top guide and the chaining pin distance on the chaining pin line of travel is about 1～1.5mm, when measuring curved surface, can cause chaining pin needle point and top guide not on a surface level because of measured surface curvature, thus the measuring error of bringing; Simultaneously, it is common that the top guide sensor front end is arranged is the above right cylinder of diameter 4mm, when measuring modulus less than the gear of 4mm, sensor can't be deep into the tooth root place and measure, and common its flank of tooth area of fine module gear is less, measurable stroke is also very little on the flank of tooth, and common sensor generally can't be finished the tooth-face roughness measurement function.
Three, summary of the invention
The objective of the invention is in order to realize measurement the gear teeth face roughness.
The contact pin type instrument that is equipped with this tooth-face roughness sensor can measure tooth root portion, and the special shape that can adapt to the flank of tooth is measured.New construction has redesigned the shape of top guide, and the front end (promptly with the workplace contact portion) of top guide is designed to wedge shape, and the tooth root place that makes the top guide front end can probe into gear contacts with the flank of tooth.The shape and the size of chaining pin support have also been done corresponding modification on the basis of common sensor simultaneously, chaining pin directly is bonded on " it " font chaining pin support, chaining pin needle point and top guide minimum point are on the straight line vertical with direction of measurement, and the distance between 2 is 0.25mm.
This is a kind of other top guide structure, and during measurement, driving box drives sensor and moves with uniform velocity along the tested flank of tooth, and chaining pin and top guide move up and down with the microfluctuation of surface of the work.Top guide reaches 50mm with radius-of-curvature sphere contacts with measured surface, and chaining pin needle point arc radius only is 5 μ m.In the gliding motility, top guide is along the tooth surface shape contour motion, and chaining pin then moves up and down along with the microfluctuation of surfaceness.Because top guide and chaining pin and surperficial contact point are on the straight line vertical with line of travel, and these 2 distances are less, so tested flank of tooth profile variations is very little to the influence that records the roughness profile, can not bring measuring error.
The advantage of this structure is: the arc radius of top guide and workpiece contact point, can play the effect of mechanical filtering.Simultaneously, because the top guide in this design is compared with circular-arc full encirclement shape top guide at the nearly chaining pin of a side joint, assembling adjustment is more prone to, and chaining pin is difficult for colliding with top guide in using, and has reduced failure rate.
Four, description of drawings
Accompanying drawing 1 top guide structural drawing
Accompanying drawing 2 chaining pin rack assumption diagrams
Accompanying drawing 3 flank of tooth sensor front end structural drawing
Among the figure, the 1-chaining pin; 2-chaining pin frame; The 3-top guide; The 4-test arm
Accompanying drawing 4 flank of tooth sensor front end sectional views
Five, embodiment
The flank of tooth of gear has following characteristics: the flank of tooth of gear is generally curved surface, and tooth root portion space is less, and common roughness sensor can't be deep into the tooth root position.
This invention is mainly concerned with the front portion of roughness sensor, top guide 3 promptly shown in Figure 3, chaining pin support 2, chaining pin 1 several parts.The top guide structure is shown in Fig. 1 (a), and the front end wedgewise can be deep into the tooth root portion measurement of tested gear.By the left view of Fig. 1 (b) top guide as can be seen, it is the sphere of radius 50mm that two arms of nosed have an arm lower end, and another arm does not contact measured surface, is used for protecting chaining pin in order to avoid be collided in measurement.
The chaining pin supporting structure is " it " font, as shown in Figure 2.There is a hole chaining pin support front end position parallel with the top guide minimum point, and chaining pin passes aperture and is adhesively fixed.Chaining pin support rear portion and measuring staff are bonding, and the height of chaining pin support and top guide structure adapt, and have guaranteed the zero-bit of sensor.
The chaining pin length of the more common sensor of chaining pin is shorter, by being adhesively fixed, guaranteed assembling back sensor foremost the height at chaining pin contact Tooth place be not more than 1.5mm so that can measure the above gear of modulus 2mm.
During assembling, the chaining pin support 2 that has assembled chaining pin 1 is bonded on the measuring staff, and top guide 3 is bonded on the test arm 4, and measuring staff passes through in the test arm endoporus of hollow, probes into sensor main body, and is stained with two magnetic sheets.Test arm 4 is fixed together with sensor main body.In the measurement, chaining pin 1 moves up and down with flank of tooth microfluctuation, and top guide 3 is along the tooth surface shape contour motion.Chaining pin 1 is got off to form the roughness profile with respect to the relative displacement of top guide 3 by instrument record, and calculates roughness parameter in view of the above.
Claims (4)
1. tooth-face roughness sensor, front end are the other top guide structure of wedge shape, and it is characterized in that: the top guide front end is a wedge shape, and chaining pin is bonded on " it " font chaining pin support, and the chaining pin needle point is on the straight line vertical with direction of measurement with the top guide minimum point.
2. tooth-face roughness sensor according to claim 1; it is characterized in that: the top guide front end is a wedge shape; it is the sphere of radius 50mm that two arms of top guide front end have an arm lower end; it is the benchmark of measuring tooth-face roughness; another arm does not contact measured surface, is used for protecting chaining pin in order to avoid be collided in measurement.
3. tooth-face roughness sensor according to claim 1 is characterized in that: the chaining pin supporting structure is " it " font, and there is a hole chaining pin support front end position parallel with the top guide minimum point, and chaining pin passes aperture and is adhesively fixed; Chaining pin support rear portion and measuring staff are bonding, and height adapts with the top guide structure, has guaranteed the zero-bit of sensor.
4. tooth-face roughness sensor according to claim 1 is characterized in that: the chaining pin needle point of sensor is vertical with the sensor sliding trajectory with the straight line that contact point was linked to be of measured surface with top guide, and promptly the minimum point of top guide slides with the chaining pin needle point is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820211691XU CN201449258U (en) | 2008-12-17 | 2008-12-17 | Tooth surface roughness sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820211691XU CN201449258U (en) | 2008-12-17 | 2008-12-17 | Tooth surface roughness sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449258U true CN201449258U (en) | 2010-05-05 |
Family
ID=42553979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820211691XU Expired - Fee Related CN201449258U (en) | 2008-12-17 | 2008-12-17 | Tooth surface roughness sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534977A (en) * | 2014-12-19 | 2015-04-22 | 太原理工大学 | Side wall roughness detecting method and device for SOI optical waveguide |
| CN106595454A (en) * | 2016-12-15 | 2017-04-26 | 中船动力有限公司 | Special-purpose diesel engine connecting rod tooth surface roughness detection device |
-
2008
- 2008-12-17 CN CN200820211691XU patent/CN201449258U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534977A (en) * | 2014-12-19 | 2015-04-22 | 太原理工大学 | Side wall roughness detecting method and device for SOI optical waveguide |
| CN104534977B (en) * | 2014-12-19 | 2017-03-22 | 太原理工大学 | Side wall roughness detecting method and device for SOI optical waveguide |
| CN106595454A (en) * | 2016-12-15 | 2017-04-26 | 中船动力有限公司 | Special-purpose diesel engine connecting rod tooth surface roughness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20101217 |