CN218121371U

CN218121371U - Simple and easy light-duty aircraft track test fixture

Info

Publication number: CN218121371U
Application number: CN202222266738.5U
Authority: CN
Inventors: 吕元; 戴元吉; 陈初; 陈敏华; 潘峰; 陈滨
Original assignee: Zhejiang Wanfeng Aircraft Manufacturing Co ltd
Current assignee: Zhejiang Wanfeng Aircraft Manufacturing Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-23
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a simple light aircraft track testing tool.A support bracket is telescopically arranged at the left end of a bracket main body; one end of the auxiliary bracket close to the bracket main body is provided with scale marks; a right measuring support rod is vertically formed at one end of the rear end face of the support main body, which is far away from the auxiliary support; a left measuring support rod is vertically formed at one end, far away from the support main body, of the rear end face of the auxiliary support; the end surfaces of the right measuring support rod and the left measuring support rod, which are close to each other, are respectively formed with a positioning conical head; the right measuring support rod and the left measuring support rod are formed with a plurality of measuring through holes with left and right openings which are uniformly distributed around the rotating central shaft of the positioning conical head as an axis; a pair of movable supporting rods distributed left and right are respectively formed on the front end surface and the rear end surface of the bracket main body; one end of the lower end surface of the movable support rod, which is far away from the bracket main body, is provided with a heavy-load universal wheel; utility model advantage: the device has the advantages of simple and practical structure, low cost, high flexibility, simplicity in operation and capability of reducing the time cost required by measurement.

Description

Simple and easy light-duty aircraft track test fixture

Technical Field

The utility model relates to a technical field of light aircraft test, concretely relates to simple and easy light aircraft track test fixture.

Background

The airplane has many uncontrollable factors in the flying process, so the airplane must test the installation mode and the performance of each part before test flight, and the airplane orbit test is also an important link in the test. Slight errors in the mounting of the tires of an aircraft can result in certain deviations in the distance or angle between the wheels, which can sometimes be fatal. However, currently, the track testing device is generally arranged in a fixed area, and the airplane must be moved to the fixed position for measurement during measurement. And the structure of the device is more complicated, and the purchase cost is higher. However, if manual measurement is performed manually, a large measurement error exists, and the measurement consumes much time, which increases labor cost. In order to solve the problems, the test tool is designed for detecting the installation state of the tire of the light airplane (three wheels).

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose provides a simple and easy light-duty aircraft track test fixture to the inconvenient technical problem of test of tire installation state when current aircraft track tests.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a simple light aircraft track testing tool comprises a support, a horizontal height fine-tuning device and a vertical height fine-tuning device; the bracket comprises a bracket main body and an auxiliary bracket; the auxiliary bracket is arranged at the left end of the bracket main body in a telescopic manner; one end of the auxiliary bracket close to the bracket main body is provided with scale marks; a right measuring support rod is vertically formed at one end of the rear end face of the support main body, which is far away from the auxiliary support; a left measuring support rod is vertically formed at one end, far away from the support main body, of the rear end face of the auxiliary support; the end surfaces of the right measuring support rod and the left measuring support rod, which are close to each other, are respectively provided with a positioning conical head; the right measuring support rod and the left measuring support rod are respectively provided with a plurality of measuring through holes with left and right openings which are uniformly distributed around the circumference by taking the rotating central shaft of the positioning conical head as an axis; a pair of movable supporting rods distributed left and right are respectively formed on the front end surface and the rear end surface of the bracket main body; one end of the lower end surface of the movable support rod, which is far away from the bracket main body, is provided with a heavy-load universal wheel; a vertical height adjusting support rod is formed on the front end surface of the bracket main body; the horizontal height fine-adjustment device comprises a horizontal height fine-adjustment base and a first horizontal tester, wherein the horizontal height fine-adjustment base is arranged at the left end of the lower end face of the auxiliary support in a lifting mode, and the first horizontal tester is fixed at the left end of the upper end face of the support main body; the vertical height fine-adjustment device comprises a vertical height fine-adjustment base and a second horizontal tester, wherein the vertical height fine-adjustment base is arranged at the front end of the lower end face of the vertical height adjustment supporting rod in a lifting mode, and the second horizontal tester is fixed in the middle of the upper end face of the vertical height adjustment supporting rod; a cylindrical measuring hanging rod is arranged on the rear end face of the bracket main body; the rotation central axes of the measuring hanging rod and the pair of positioning conical heads are collinear.

Preferably, in the above aspect, the height adjustment support bar is located at the center between the pair of movable support bars on the front side.

Preferably, the number of measuring perforations is at least four.

As the optimization of the technical scheme, a horizontal screw is vertically screwed at the left end of the auxiliary bracket; a horizontal height adjusting rotary handle is formed at the upper end of the horizontal height screw rod; the horizontal height fine-tuning base is in threaded connection with the lower end of the horizontal height screw rod.

Preferably, the front end of the vertical height adjusting support rod is vertically screwed with a vertical height screw; a vertical height adjusting rotary handle is formed at the upper end of the vertical height screw rod; the vertical height fine tuning base is in threaded connection with the lower end of the vertical height screw rod.

Preferably, a rear extension rod is formed on the rear end face of the bracket main body; the measuring hanging rod is formed at the rear end of the rear extension rod; the rear extension rod is positioned between the pair of movable support rods at the rear side.

The beneficial effects of the utility model reside in that: the device has the advantages of simple and practical structure, low cost, high flexibility, simplicity in operation and capability of reducing the time cost required by measurement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the positioning cones 30 and the measurement through holes 300 on the right measurement support rod 11 and the left measurement support rod 21 of the present invention;

in the figure, 10, a stent main body; 11. a right measurement support bar; 12. moving the support rod; 13. a heavy-duty universal wheel; 14. a vertical height adjustment support bar; 15. a second level tester; 16. measuring the hanging rod; 161. a rear extension bar; 17. a first level tester; 18. a vertical height fine-tuning base; 19. a vertical height screw; 191. a vertical height adjustment swivel handle; 20. an auxiliary support; 21. a left measurement support bar; 22. scale lines; 23. a horizontal height screw; 231. a horizontal height adjusting rotary handle; 24. a horizontal height fine-tuning base; 30. positioning a conical head; 300. the perforation is measured.

Detailed Description

As shown in fig. 1 and 2, a simple light aircraft track testing tool comprises a support, a horizontal height fine-adjustment device and a vertical height fine-adjustment device; the bracket comprises a bracket main body 10 and an auxiliary bracket 20; the auxiliary bracket 20 is telescopically arranged at the left end of the bracket main body 10; the auxiliary bracket 20 is provided with scale marks 22 at one end close to the bracket main body 10; a right measuring support rod 11 is vertically formed at one end of the rear end surface of the support main body 10, which is far away from the auxiliary support 20; a left measuring support rod 21 is vertically formed at one end of the rear end surface of the auxiliary support 20, which is far away from the support main body 10; the end surfaces of the right measuring support rod 11 and the left measuring support rod 21 which are close to each other are respectively provided with a positioning conical head 30; the right measuring support rod 11 and the left measuring support rod 21 are respectively formed with a plurality of measuring through holes 300 with left and right openings which are uniformly distributed around the circumference by taking the rotating central shaft of the positioning conical head 30 as an axis; a pair of movable support rods 12 distributed left and right are respectively formed on the front end surface and the rear end surface of the bracket main body 10; a heavy-load universal wheel 13 is arranged at one end of the lower end face of the movable support rod 12 far away from the bracket main body 10; a vertical height adjusting support rod 14 is formed on the front end surface of the bracket main body 10; the horizontal height fine-tuning device comprises a horizontal height fine-tuning base 24 which is arranged at the left end of the lower end surface of the auxiliary bracket 20 in a lifting way and a first horizontal tester 17 which is fixed at the left end of the upper end surface of the bracket main body 10; the vertical height fine-tuning device comprises a vertical height fine-tuning base 18 which is arranged at the front end of the lower end face of the vertical height adjusting support rod 14 in a lifting mode and a second horizontal tester 15 which is fixed in the middle of the upper end face of the vertical height adjusting support rod 14; a cylindrical measuring hanging rod 16 is arranged on the rear end face of the bracket main body 10; the rotation central axes of the measuring hanging rod 16 and the pair of positioning conical heads 30 are collinear.

As shown in fig. 1, the height-adjusting support bar 14 is positioned at the center of the pair of movable support bars 12 at the front side.

As shown in fig. 1 and 2, the number of the measurement penetration holes 300 is at least four.

As shown in fig. 1, a horizontal screw 23 is vertically screwed to the left end of the auxiliary bracket 20; a horizontal height adjusting rotary handle 231 is formed at the upper end of the horizontal height screw rod 23; the level fine-adjustment base 24 is screwed to the lower end of the level screw 23.

As shown in fig. 1, a vertical height screw 19 is vertically screwed at the front end of the vertical height adjusting support rod 14; a vertical height adjusting rotary handle 191 is formed at the upper end of the vertical height screw rod 19; the vertical height fine adjustment base 18 is screwed to the lower end of the vertical height screw 19.

As shown in fig. 1, a rear extension bar 161 is formed on the rear end surface of the holder main body 10; the measuring hanging rod 16 is formed at the rear end of the rear extension rod 161; the rear extension bar 161 is positioned between the pair of moving support bars 12 at the rear side.

Simple and easy light aircraft track test fixture's theory of operation:

1. the outrigger 20 is pulled first so that the outrigger 20 extends the longest and the entire test fixture is brought to the aircraft measurement location.

2. Then the auxiliary support 20 is pushed to be contracted towards the inside of the support body 10, and a pair of positioning conical heads 30 are aligned with central holes of the left and right wheels of the airplane, and the auxiliary support is contracted and inserted for measurement.

3. The up-and-down positions of the horizontal height fine-adjustment base 24 and the vertical height fine-adjustment base 18 are adjusted so that the bubbles of the first level tester 17 and the second level tester 15 are in the intermediate positions.

4. And (5) repeating the step 2 and the step 3, observing the scale marks 22, and recording the numerical values for parameter comparison.

5. A vernier caliper is inserted into all the measurement perforations 300 so that the difference between the maximum value and the minimum value is within a range of 0.02 mm. If exceeding 0.02mm indicates a wheel shift, reinstallation is required.

6. The measuring hanging rod 16 is hooked by using the tape measure, the tape measure is stretched to the central hole of the front wheel (single wheel) of the airplane, the distance is the distance between the front wheel and the rear wheel of the airplane, and if the distance exceeds an error range, the installation of the front wheel has errors.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a simple and easy light-duty aircraft track test fixture which characterized in that: comprises a bracket, a horizontal height fine-tuning device and a vertical height fine-tuning device; the bracket comprises a bracket main body (10) and an auxiliary bracket (20); the auxiliary bracket (20) is telescopically arranged at the left end of the bracket main body (10); one end of the auxiliary bracket (20) close to the bracket main body (10) is provided with scale marks (22); a right measuring support rod (11) is vertically formed at one end of the rear end face of the support main body (10) far away from the auxiliary support (20); a left measuring support rod (21) is vertically formed at one end of the rear end surface of the auxiliary bracket (20) far away from the bracket main body (10); the end surfaces of the right measuring support rod (11) and the left measuring support rod (21) which are close to each other are respectively provided with a positioning conical head (30); the right measuring support rod (11) and the left measuring support rod (21) are respectively formed with a plurality of measuring through holes (300) with left and right openings which are uniformly distributed around the rotation central axis of the positioning conical head (30); a pair of movable support rods (12) which are distributed left and right are respectively formed on the front end surface and the rear end surface of the bracket main body (10); a heavy-load universal wheel (13) is arranged at one end of the lower end surface of the movable support rod (12) far away from the bracket main body (10); a vertical height adjusting support rod (14) is formed on the front end surface of the support main body (10); the horizontal height fine-tuning device comprises a horizontal height fine-tuning base (24) which is arranged at the left end of the lower end face of the auxiliary support (20) in a lifting mode and a first horizontal tester (17) which is fixed at the left end of the upper end face of the support main body (10); the vertical height fine-tuning device comprises a vertical height fine-tuning base (18) which is arranged at the front end of the lower end face of the vertical height adjusting supporting rod (14) in a lifting mode and a second horizontal tester (15) which is fixed in the middle of the upper end face of the vertical height adjusting supporting rod (14); a cylindrical measuring hanging rod (16) is arranged on the rear end face of the bracket main body (10); the rotation central axes of the measuring hanging rod (16) and the pair of positioning conical heads (30) are collinear.

2. The simple light aircraft track testing tool according to claim 1, characterized in that: the height adjusting support rod (14) is positioned at the middle of the pair of the movable support rods (12) at the front side.

3. The simple and easy light-duty aircraft track test fixture of claim 1 characterized in that: the number of measuring perforations (300) is at least four.

4. The simple and easy light-duty aircraft track test fixture of claim 1 characterized in that: a horizontal height screw rod (23) is vertically screwed at the left end of the auxiliary bracket (20); a horizontal height adjusting rotary handle (231) is formed at the upper end of the horizontal height screw rod (23); the horizontal height fine adjustment base (24) is screwed at the lower end of the horizontal height screw rod (23).

5. The simple light aircraft track testing tool according to claim 1, characterized in that: the front end of the vertical height adjusting support rod (14) is vertically screwed with a vertical height screw rod (19); a vertical height adjusting rotary handle (191) is formed at the upper end of the vertical height screw rod (19); the vertical height fine-tuning base (18) is screwed at the lower end of the vertical height screw rod (19).

6. The simple and easy light-duty aircraft track test fixture of claim 1 characterized in that: a rear extension rod (161) is formed on the rear end surface of the bracket main body (10); the measuring hanging rod (16) is formed at the rear end of the rear extension rod (161); the rear extension bar (161) is located between a pair of movable support bars (12) at the rear side.