CN217585582U - Device for measuring compression amount of airplane tire - Google Patents
Device for measuring compression amount of airplane tire Download PDFInfo
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- CN217585582U CN217585582U CN202221653242.7U CN202221653242U CN217585582U CN 217585582 U CN217585582 U CN 217585582U CN 202221653242 U CN202221653242 U CN 202221653242U CN 217585582 U CN217585582 U CN 217585582U
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Abstract
The utility model discloses a measuring device for aircraft tire compressibility, including the measurement installation axle corresponding with the aircraft tire, measuring device is including adjusting nut, holding bolt, position sleeve, holding screw and removal measuring stick, measurement installation axle and removal measuring stick sliding connection, the position sleeve cover is arranged in removing the measuring stick, is equipped with the through-hole corresponding with holding screw in the position sleeve, and holding screw passes the through-hole and contacts with removing the measuring stick and be connected, the position sleeve can follow the removal measuring stick and reciprocate to in the upward movement process, contact with the lower terminal surface of measuring the installation axle; the adjusting nut is screwed in the movable measuring rod and is contacted with the upper end face of the measuring installation shaft. Adopt measuring device, ability rapid survey tire compressibility can be used to the measurement demand to various different diameter tire compressibility, has simple structure, convenient to use, its practicality is strong, is fit for popularizing and applying.
Description
Technical Field
The utility model belongs to the technical field of aircraft brake test equipment technique and specifically relates to a measuring device for aircraft tire compressibility.
Background
The drop test is an important test in the process of developing an airplane, is a kinetic energy test for simulating the landing impact of the airplane, is an important capability for verifying the landing work absorption of a landing gear system and whether the landing gear of the airplane can meet the safe landing of the airplane under various complex conditions, and is an important assessment item in the process of the drop test.
The airplane tire compression amount is one of parameters for calculating the sliding performance, the deceleration performance, the sliding distance, the sliding time, the absorbed energy and the like of the airplane. For the measurement of the tire compression, auxiliary equipment is needed for measurement because the personnel can not approach the tire during the test. The conventional measurement is performed with a stylus or a high-speed camera. A scriber needs to be installed for measuring, the distance between the scriber and a test undercarriage must be very close, unknown factors are many in the test process of developing and verifying the undercarriage, the scriber is easy to collide and collapse in the test process, and potential safety hazards exist; and the high-speed camera is used for measurement, and then corresponding calculation analysis software is used for manual interpretation, so that the investment of equipment is not high, and the interpretation workload is very large. Patent document No. CN 205280389U, patent name: an airborne device for measuring the compression of airplane tires needs to use a laser displacement sensor, an inclination angle sensor and a data acquisition system. And patent document No. CN 105333848B, the patent names of which are: a device and a method for measuring the compression amount of an airplane tire need to use a linear displacement sensor and a triaxial tilt angle sensor. Therefore, the traditional scribing method has certain potential safety hazard, and the cost of the traditional sensor method is relatively high. Therefore, in order to quickly measure the tire compression and meet the measurement requirements of the tire compression with different diameters, the measuring device and the measuring method which are simple in structure and convenient to operate and use are provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the problem that exists in the background art, provide a simple structure, operation and convenient to use's measuring device utilizes this measuring device, can the rapid survey tire compression volume, can be used to the measuring demand to various different diameter tire compression volumes, can effectively reduce the cost of labor, specifically speaking is a measuring device for aircraft tire compression volume.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: a measuring device for the compression amount of an airplane tire comprises a measuring installation shaft corresponding to the airplane tire, wherein the measuring device comprises an adjusting nut, a fastening bolt, a positioning sleeve, a fastening screw and a movable measuring rod, a notch is formed in one side, away from the airplane tire, of the measuring installation shaft, one end of the measuring installation shaft is in sliding connection with the movable measuring rod through the notch, the other end of the measuring installation shaft is detachably and fixedly connected with the airplane tire, connecting holes corresponding to the fastening bolt are formed in two sides of the notch, and the fastening bolt penetrates through the connecting holes and is fixedly connected with the measuring installation shaft; the positioning sleeve is sleeved in the movable measuring rod, a through hole corresponding to the set screw is formed in the positioning sleeve, the set screw penetrates through the through hole to be in contact connection with the movable measuring rod, and the positioning sleeve can move up and down along the movable measuring rod under the action of external force and is in contact with the lower end face of the measuring installation shaft in the upward movement process; the adjusting nut is screwed in the movable measuring rod and is positioned above the positioning sleeve, and the adjusting nut is in contact with the upper end face of the measuring installation shaft which is connected in the movable measuring rod in a sliding mode under the action of external force.
Further, a measuring device for aircraft tire decrement, wherein remove the measuring stick lower extreme and still cup jointed the binding off and connect, and movable steel ball is installed to the bottom that the binding off connects.
Further, a measuring device for aircraft tire compressibility, wherein remove the measuring stick and be the metal pipe structure, and the surface of removing the measuring stick is equipped with the scale.
Adopt a measuring device for aircraft tire compression volume, compare with prior art, its beneficial effect lies in: the maximum compression amount of the airplane tire can be calculated by utilizing the positioning sleeve arranged on the movable measuring rod and the position of the positioning sleeve when the airplane tire is compressed to the maximum through the last stop position of the positioning sleeve, all the positioning sleeve adopts a mechanical structure, the safety problem existing in the traditional scratch-mark needle mode is solved, so that the problem of high input cost required by adopting a sensor or a high-speed camera for measurement is solved, the intensity and the service life of the tire can be accurately evaluated by utilizing the measured data, and a credible test basis is provided for researching the airplane wheel and the tire with better performance. Adopt measuring device be used for measuring aircraft tire compression, improved work efficiency and measuring accuracy greatly, simultaneously, this measuring device can be used to the measurement demand to various different diameter tire compression, has simple structure, convenient to use can effectively reduce the cost of labor, measures simply swiftly, has greatly improved measurement of efficiency, its practicality is strong, is fit for popularizing and applying.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an installation structure before a test using the measuring device of the present invention;
FIG. 3 is a schematic structural view of the aircraft tire during the compression process of the present invention;
fig. 4 is a schematic view of the position state structure of the positioning sleeve after moving.
Shown in the figure: 1-aircraft tire, 2-measuring installation shaft, 3-adjusting screw cap, 4-fastening bolt, 5-positioning sleeve, 6-fastening bolt, 7-moving measuring rod, 8-closing-in joint, 9-movable steel ball and 10-aircraft landing gear.
Detailed Description
To further illustrate the concept of the present invention, the following embodiments of the present invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 to 4, the utility model discloses a measuring device for aircraft tire compression, including the measurement installation axle 2 corresponding with aircraft tire 1, measuring device is including adjusting nut 3, holding bolt 4, position sleeve 5, holding screw 6, removal measuring stick 7, binding off joint 8 and activity steel ball 9, be equipped with the notch on the side of keeping away from aircraft tire 1 on the measurement installation axle 2, one end of measuring installation axle 2 passes through the notch and removes measuring stick 7 sliding connection, the other end and aircraft tire 1 detachably fixed connection, and be equipped with the connecting hole corresponding with holding bolt 4 in the notch both sides, holding bolt 4 passes the connecting hole and measures installation axle 2 fixed connection; the positioning sleeve 5 is sleeved in the movable measuring rod 7, a through hole corresponding to the set screw 6 is formed in the positioning sleeve 5, the set screw 6 penetrates through the through hole to be in contact connection with the movable measuring rod 7, and the positioning sleeve 5 can move up and down along the movable measuring rod 7 under the action of external force and is in contact with the lower end face of the measuring installation shaft 2 in the upward movement process; the adjusting nut 3 is screwed in the movable measuring rod 7 and is positioned above the positioning sleeve 5, and the adjusting nut 3 is in contact with the upper end face of the measuring installation shaft 2 which is connected in the movable measuring rod 7 in a sliding manner under the action of external force; a closing-in joint 8 is further sleeved at the lower end of the movable measuring rod 7, and a movable steel ball 9 is mounted at the bottom of the closing-in joint 8; the movable measuring rod 7 is of a metal round tube structure, and a scale is arranged on the outer surface of the movable measuring rod 7.
Adopt measuring device, wherein aircraft undercarriage 10 and aircraft tire 1 are aircraft tire 1 and aircraft undercarriage 10 that have prepared among the prior art, and the concrete structure of measurement installation axle 2, as long as can with aircraft tire 1 reach fixed connection can, and to adjusting nut 3, holding bolt 4, position sleeve 5, holding screw 6, removal measuring stick 7, binding off connect 8 and activity steel ball 9, because its structure is the more commonly used component among the prior art, be applied to after its combination the utility model discloses, its purpose facilitates the use and operates.
In the specific use process, when the measuring device is used for measuring the compression amount of the airplane tire, the specific measuring process is as follows:
step 1: during testing, an aircraft tire 1 mounted on an aircraft landing gear 10 is fixedly connected with one end of a measurement mounting shaft 2, the other end of the measurement mounting shaft 2 is mounted on a movable measuring rod 7 through a notch, and then the measurement mounting shaft 2 is fixedly connected with the measurement mounting shaft 2 through a fastening bolt 4 penetrating through connecting holes on two sides of the notch, so that the measurement mounting shaft 2 can slide up and down along the movable measuring rod 7; when the aircraft tire 1 is not compressed at the zero point, adjusting the position of the movable measuring rod 7 to enable the movable steel ball 9 positioned at the bottom of the movable measuring rod 7 to be positioned at the same position as the aircraft tire 1; then, adjusting the adjusting nut 3 and the positioning sleeve 5 to enable the adjusting nut 3 and the positioning sleeve 5 to be respectively contacted with the upper end face and the lower end face of the measuring installation shaft 2, and then adjusting the set screw 6 to enable the positioning sleeve 5 to be clamped on the movable measuring rod 2 by utilizing the set screw 6 so as to prevent the positioning sleeve 5 from freely sliding downwards along the movable measuring rod 7; finally, recording the parameter of the position h0 of the measuring installation shaft 2 in the state, namely the initial state position of the airplane tire 1;
and 2, step: under the action of an external test platform, an aircraft landing gear 10 is driven to move, when the aircraft landing gear 10 impacts the ground from different heights according to test requirements, an aircraft tire 1 is compressed, at the moment, a measurement mounting shaft 2 fixedly connected with the aircraft tire 1 moves downwards along with the compression of the aircraft tire 1, a positioning sleeve 5 is pushed to move downwards along a movement measuring rod 7, the positioning sleeve 5 is stopped at the position where the aircraft tire 1 is compressed to the maximum, and after the test is finished, the parameter of the position h1 of the positioning sleeve 5, namely the state position where the aircraft tire 1 is compressed to the maximum, is recorded;
and 3, step 3: and calculating the compression amount of the airplane tire 1, adjusting the adjusting nut 3 again after the test is finished, so that the adjusting nut 3 on the movable measuring rod 7 is in contact with the upper end surface of the measuring and mounting shaft 2, and the distance between the upper end of the positioning sleeve 5 and the lower end surface of the measuring and mounting shaft 2 is the maximum compression amount of the tire, namely the maximum compression amount delta h = h1-h0, so that the measurement of the compression amount of the airplane tire 1 is finished.
Adopt measuring device, utilize the position sleeve 5 that sets up 7 on removing the measuring stick, through position sleeve 5 last stop position for aircraft tire 1 by the position department when compressing the biggest, can calculate aircraft tire 1's the biggest compressive capacity, all adopt mechanical structure, the safety problem that traditional scratch awl mode exists has been overcome, so that adopt sensor or high-speed camera to measure and need the high problem of input cost, the data that the utilization measurement obtained can be to tire intensity, accurate aassessment is carried out in the life-span, provide credible experimental foundation for aircraft wheel and tire that research performance is better.
To sum up, adopt measuring device be used for measuring aircraft tire compression, improved work efficiency and measuring accuracy greatly, simultaneously, this measuring device can be used to the measurement demand to various different diameter tire compression, has simple structure, convenient to use can effectively reduce the cost of labor, measures simply swiftly, has greatly improved measurement of efficiency, and its practicality is strong, is fit for popularizing and applying.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and any modifications, equivalent replacements, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A measuring device for the compression of an aircraft tyre, comprising a measuring mounting shaft (2) corresponding to the aircraft tyre (1), characterized in that: the measuring device comprises an adjusting nut (3), a fastening bolt (4), a positioning sleeve (5), a fastening screw (6) and a movable measuring rod (7), wherein a notch is formed in one side, far away from the aircraft tire (1), of the measuring installation shaft (2), one end of the measuring installation shaft (2) is in sliding connection with the movable measuring rod (7) through the notch, the other end of the measuring installation shaft is detachably and fixedly connected with the aircraft tire (1), connecting holes corresponding to the fastening bolt (4) are formed in two sides of the notch, and the fastening bolt (4) penetrates through the connecting holes to be fixedly connected with the measuring installation shaft (2); the positioning sleeve (5) is sleeved in the movable measuring rod (7), a through hole corresponding to the set screw (6) is formed in the positioning sleeve (5), the set screw (6) penetrates through the through hole to be in contact connection with the movable measuring rod (7), and the positioning sleeve (5) can move up and down along the movable measuring rod (7) under the action of external force and is in contact with the lower end face of the measuring installation shaft (2) in the upward movement process; the adjusting nut (3) is screwed in the movable measuring rod (7) and is positioned above the positioning sleeve (5), and the adjusting nut (3) is in contact with the upper end face of the measuring installation shaft (2) which is connected with the movable measuring rod (7) in a sliding mode under the action of external force.
2. A device for measuring the compression of an aircraft tyre as claimed in claim 1, wherein: the lower end of the movable measuring rod (7) is further sleeved with a closing-in connector (8), and a movable steel ball (9) is mounted at the bottom of the closing-in connector (8).
3. A device for measuring the compression of an aircraft tyre as claimed in claim 1, wherein: the movable measuring rod (7) is of a metal round tube structure, and a scale is arranged on the outer surface of the movable measuring rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221653242.7U CN217585582U (en) | 2022-06-30 | 2022-06-30 | Device for measuring compression amount of airplane tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221653242.7U CN217585582U (en) | 2022-06-30 | 2022-06-30 | Device for measuring compression amount of airplane tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217585582U true CN217585582U (en) | 2022-10-14 |
Family
ID=83531104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221653242.7U Active CN217585582U (en) | 2022-06-30 | 2022-06-30 | Device for measuring compression amount of airplane tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217585582U (en) |
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2022
- 2022-06-30 CN CN202221653242.7U patent/CN217585582U/en active Active
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