CN211651534U - Quick measuring device of honeycomb seal structure - Google Patents
Quick measuring device of honeycomb seal structure Download PDFInfo
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- CN211651534U CN211651534U CN201922214863.XU CN201922214863U CN211651534U CN 211651534 U CN211651534 U CN 211651534U CN 201922214863 U CN201922214863 U CN 201922214863U CN 211651534 U CN211651534 U CN 211651534U
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Abstract
The utility model relates to a quick measuring device of honeycomb seal structure, primary structure include the adjusting block, the stand, the base, the sensor mount pad, line laser sensor, some laser sensor, the motor, the clamp plate, the encoder mount pad, the encoder. The measurement process mainly comprises the following steps: adjusting a measuring system and calculating a rotation error; adjusting and quickly measuring the honeycomb sealing structure; and calculating parameters of the honeycomb sealing structure. The quick measuring device realizes quick adjustment and error analysis of the measuring system through a non-contact measuring technology, and effectively improves the measuring efficiency and the measuring precision of the honeycomb sealing structure.
Description
Technical Field
The utility model relates to a honeycomb seal structure quick measuring device belongs to precision measurement technical field.
Background
The blade tip clearance is used as an important parameter influencing the aerodynamic characteristics of the engine, has important influence on the overall performance, the oil consumption rate and the safety of the aero-engine, particularly has direct influence on the vibration characteristics and the fuel efficiency of the engine due to high blade tip clearance, and causes the increase of the oil consumption rate of the engine and the aggravation of pollution due to overlarge blade tip clearance; and if the clearance is too small, the rotor and the stator may be rubbed and abraded, so that the engine is damaged, and the flight safety is affected. Therefore, during the whole engine assembly process, the blade tip clearance is one of the important parameters of the engine. The blade tip clearance is usually formed by a blade and a casing or a sealing structure thereof, various sealing structures exist in the engine, common non-contact sealing structures are of a comb tooth type and a honeycomb type, and the sealing structures play an important role in reducing and preventing gas backflow of a main flow path, reducing leakage loss and improving the overall performance of the engine.
The existing measurement scheme mainly includes: 1. measuring by a feeler gauge through designing a special tool; 2. and a contact type sensor is matched with a gantry type rotary table to measure the surface of the honeycomb. The two modes are designed based on the measurement scheme of the prior art, the technical means is more traditional, and the measurement precision and efficiency of the system are relatively low.
Disclosure of Invention
The utility model discloses just not enough and the design provides a honeycomb seal structure quick measuring device to the existence of above-mentioned current device, and its purpose realizes the high-efficient precision measurement of engine honeycomb seal structure.
The purpose of the utility model is realized through the following technical scheme:
this kind of honeycomb seal structure quick measuring device, its characterized in that: this measuring device includes adjusting block 1, stand 2, base 3, sensor mount pad 4, line laser sensor 5, some laser sensor 6, motor 7, clamp plate 8, encoder mount pad 9 and encoder 10, a bottom at stand 2 is installed to adjusting block 1 for device level adjustment, the top of stand 2 is provided with base 3, sensor mount pad 4, motor 7 passes through clamp plate 8 and installs on base 3, encoder 10 is connected with the motor through encoder mount pad 9 and carries out angle feedback, line laser sensor 5 and some laser sensor 6 are installed at sensor mount pad 4, the honeycomb seal structure that awaits measuring is placed at 3 upper surfaces of base.
The utility model discloses the device adopts the measuring scheme that non-contact point laser sensor and non-contact line laser sensor combined together, utilizes line laser sensor to realize the quick adjustment of system's axis, realizes the rapid survey, carries out systematic error separation through two sensor data processing, improves measurement accuracy. Through the measuring mode that adopts non-contact sensor, solve current honeycomb seal structure measurement scheme measurement inefficiency, measurement accuracy is poor problem.
Drawings
Fig. 1 is an isometric view of the honeycomb seal rapid measuring device of the present invention.
Fig. 2 is a top view of the honeycomb seal rapid measuring device of the present invention.
Fig. 3 is a sectional view a-a of the structure shown in fig. 2.
In the figure: 1 is the adjusting block, 2 is the stand, 3 is the base, 4 is the sensor mount pad, 5 is line laser sensor, 6 is point laser sensor, 7 is the motor, 8 is the clamp plate, 9 is the encoder mount pad, 10 is the encoder, 11 honeycomb seal structure.
Detailed Description
The device of the present invention will be described in further detail with reference to the accompanying drawings and examples:
referring to the attached drawings 1-3, the quick measuring device for the honeycomb sealing structure comprises an adjusting block 1, an upright post 2, a base 3, a sensor mounting seat 4, a linear laser sensor 5, a point laser sensor 6, a motor 7, a pressing plate 8, an encoder mounting seat 9 and an encoder 10, wherein the adjusting block 1 for horizontal adjustment of the device is mounted at the bottom of the upright post 2, the top of the upright post 2 is provided with the base 3, the sensor mounting seat 4, the motor 7 is mounted on the base 3 through the pressing plate 8, the encoder 10 is connected with the motor through the encoder mounting seat 9 for angle feedback, the linear laser sensor 5 is mounted on the sensor mounting seat 4, and the honeycomb sealing structure to be measured is placed on the upper surface of the base 3. The steps of the measuring process of the device are as follows:
1. adjusting a measuring system and calculating a rotation error: opening the line laser sensor 5 and the point laser sensor 6 and aligning the line laser sensor and the point laser sensor to the inner wall surface of the base 3, performing system adjustment according to the readings of the line laser sensor 5 in the axis direction, performing four times of measurement in the circumferential direction at 90 degrees, and calculating the system rotation error according to the readings of the line laser sensor 5 and the point laser sensor 6 after the adjustment is completed;
2. adjusting and quickly measuring a honeycomb sealing structure: placing the honeycomb structure in a base, opening a line laser sensor 5 and a point laser sensor 6 and aligning the line laser sensor and the point laser sensor to the inner wall surface of the honeycomb sealing structure, adjusting the relative position of the axis of the honeycomb sealing structure and the axis of the rapid measuring system by the indication of the point laser sensor 6, starting to measure when the coaxiality is adjusted to be within 0.01mm, performing line scanning measurement on the inner wall surface of the honeycomb sealing structure by the line laser sensor 5 to obtain the profile parameter of the inner wall surface, and feeding back the measurement angle through an encoder 10;
3. calculating parameters of the honeycomb sealing structure: and (3) calculating the inner diameter and cylindricity errors of the honeycomb sealing structure by using a least square column method according to the measurement data of the line laser sensor 5 and the angle information fed back by the encoder 10, and separating the system rotation errors in the step 1 in data calculation to improve the measurement precision.
Claims (1)
1. The utility model provides a quick measuring device of honeycomb seal structure which characterized in that: the measuring device comprises an adjusting block (1), an upright post (2), a base (3), a sensor mounting seat (4), a line laser sensor (5), a point laser sensor (6), a motor (7), a pressing plate (8), an encoder mounting seat (9) and an encoder (10), the bottom of the upright post (2) is installed in the adjusting block (1) for horizontal adjustment of the device, the top of the upright post (2) is provided with the base (3), the sensor mounting seat (4), the motor (7) is installed on the base (3) through the pressing plate (8), the encoder (10) is connected with the motor through the encoder mounting seat (9) for angle feedback, the line laser sensor (5) and the point laser sensor (6) are installed on the sensor mounting seat (4), and a honeycomb sealing structure to be measured is placed on the upper surface of the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214863.XU CN211651534U (en) | 2019-12-11 | 2019-12-11 | Quick measuring device of honeycomb seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214863.XU CN211651534U (en) | 2019-12-11 | 2019-12-11 | Quick measuring device of honeycomb seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651534U true CN211651534U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922214863.XU Active CN211651534U (en) | 2019-12-11 | 2019-12-11 | Quick measuring device of honeycomb seal structure |
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| CN (1) | CN211651534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001165A (en) * | 2021-04-01 | 2021-06-22 | 中国工程物理研究院机械制造工艺研究所 | Automatic assembling device and method for small-clearance fit shaft hole |
-
2019
- 2019-12-11 CN CN201922214863.XU patent/CN211651534U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001165A (en) * | 2021-04-01 | 2021-06-22 | 中国工程物理研究院机械制造工艺研究所 | Automatic assembling device and method for small-clearance fit shaft hole |
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