CN219008143U

CN219008143U - Calibration device for aircraft PDU test board

Info

Publication number: CN219008143U
Application number: CN202320006699.7U
Authority: CN
Inventors: 季伟斌
Original assignee: Changchun Fangyuan Aviation Equipment Co ltd
Current assignee: Bangmeng Hongdao Measurement And Testing Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-12
Anticipated expiration: 2033-01-03

Abstract

The utility model provides an aircraft PDU test board calibration device, which comprises a calibration assembly, wherein the calibration assembly comprises a test platform, a chamber, a worm, two locking cylinders, two fixing seats, an arc clamping plate, a tension spring, two guide posts, three contact switches, a calibration rod, two positioning seats, a guide groove and a worm wheel; the cavity is formed in the test platform. According to the utility model, the position of the PDU main body can be limited through the arc-shaped clamping plate, the guide post is pulled through the tension spring, the guide post drives the calibration rod to be attached to the roller of the PDU main body, the position of the PDU main body can be calibrated at the moment, the worm wheel drives the PDU main body to rotate, when the front surface of the roller of the PDU main body is parallel to the front surface of the testing platform, the calibration rod is completely attached to the roller of the PDU main body, and the three contact switches are triggered, so that the position of the PDU main body is calibrated at the moment, and the accuracy of the PDU main body during performance testing can be ensured.

Description

Calibration device for aircraft PDU test board

Technical Field

The utility model relates to a calibration device, in particular to an aircraft PDU test board calibration device, and belongs to the technical field of aircraft PDU tests.

Background

The aircraft PDU is a cargo hold driving assembly, is used for transporting a cargo box on the aircraft, forms a transport line by a plurality of PDUs under a normal working environment, and transports the cargo from a starting position to a destination, so that the running stability and the part durability of each PDU forming the transport line are required to be tested in order to avoid the situation of the transport line in the actual use process.

Known chinese publication (publication number: CN 207985240U) discloses a comprehensive test stand device of an aircraft cargo hold driving assembly, which installs an aircraft PDU on a test stand body and then tests the PDU travel by a manual vertical loading assembly; the pneumatic traction load assembly is used for realizing the application of vertical load to the PDU, so that the working performance of the PDU of the aircraft is tested;

however, the test board device does not have a calibration mechanism, when the aircraft PDU is installed on the test board body, the installation seat of the aircraft PDU is circular, so that the position of the aircraft PDU on the test board body is easy to deviate, and when the aircraft PDU is subjected to performance test, the contact surface of the aircraft PDU and the test roller is deviated, so that the accuracy of the aircraft PDU performance test can be influenced.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an aircraft PDU test stand calibration device that solves or alleviates the technical problems of the prior art, and at least provides an advantageous option.

The technical scheme of the embodiment of the utility model is realized as follows: the calibration device comprises a calibration assembly, wherein the calibration assembly comprises a test platform, a cavity, a worm, two locking cylinders, two fixing seats, an arc clamping plate, a tension spring, two guide posts, three contact switches, a calibration rod, two positioning seats, a guide groove and a worm wheel;

the cavity is seted up in test platform's inside, two the lower surface symmetry fixed connection of positioning seat in test platform's upper surface both sides, the guide way is seted up in the front surface of positioning seat, two the front surface symmetry fixed connection of guide post in the rear surface of calibrating rod, three contact switch symmetry scarf joint in the rear surface of calibrating rod, the one end fixed connection of extension spring in the rear surface of guide post, the lateral wall meshing of worm connect in the lateral wall of worm wheel, two locking cylinder symmetry install in two the fixing base keep away from mutually the face, the lateral wall fixed connection of arc splint in locking cylinder's cylinder axle.

Further preferably, the lower surfaces of the two fixing seats are symmetrically and fixedly connected to the upper surface of the worm wheel, and the lower surface of the worm wheel is rotatably connected to the inner bottom wall of the cavity.

Further preferably, the rear end of the worm is rotatably connected to the inner rear wall of the chamber, and the front end of the worm penetrates the front surface of the test platform and is rotatably connected to the test platform.

Further preferably, the outer side wall of the guide post is slidably connected to the inner side wall of the guide groove, and the other end of the tension spring is fixedly connected to the inner rear wall of the guide groove.

Further preferably, an auxiliary assembly is mounted on the upper surface of the test platform, and the auxiliary assembly comprises a buzzer, a support frame, a hand wheel, two limit posts, a PDU main body and a limit rod;

the support frame install in test platform's upper surface and with test platform sliding connection, PDU main part's lateral wall sliding connection in the inside wall of support frame.

Further preferably, the hand wheel is mounted at the front end of the worm, the bottom of the PDU body is located inside the cavity, and the lower part of the outer side wall of the PDU body is attached to the adjacent surfaces of the two arc clamping plates.

Further preferably, one end of each of the two limiting posts is symmetrically and fixedly connected to one side, far away from the PDU main body, of each of the arc clamping plates, the other end of each of the limiting posts penetrates through the fixing base to be far away from one side of the PDU main body and is in sliding connection with the fixing base, and the cylinder shaft of the locking cylinder penetrates through the fixing base and is in sliding connection with the fixing base.

Further preferably, the buzzer is mounted on the upper surface of one positioning seat, the limiting rod is hinged to the front portion of the upper surface of the test platform, and the rear surface of the calibration rod is attached to the front surface of the roller of the PDU body.

By adopting the technical scheme, the embodiment of the utility model has the following advantages: according to the PDU testing device, the locking cylinder pushes the two arc clamping plates to be close to each other, the position of the PDU main body can be limited through the two arc clamping plates, the guide post is pulled through the tension spring, the guide post drives the calibration rod to be attached to the roller of the PDU main body, the position of the PDU main body can be calibrated at the moment, the worm wheel is driven to rotate through the worm, the worm wheel drives the PDU main body to rotate, when the front surface of the roller of the PDU main body is parallel to the front surface of the testing platform, the calibration rod is completely attached to the roller of the PDU main body, the three contact switches are triggered, the buzzer sounds, and at the moment, the position calibration of the PDU main body is completed, and therefore the accuracy of the PDU main body during performance testing can be guaranteed.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a block diagram of a positioning seat according to the present utility model;

FIG. 3 is a block diagram of a calibration assembly of the present utility model;

fig. 4 is a diagram of the structure of the calibration rod of the present utility model.

Reference numerals: 101. a calibration assembly; 11. a test platform; 12. a chamber; 13. a worm; 14. locking the air cylinder; 15. a fixing seat; 16. an arc clamping plate; 17. a tension spring; 18. a guide post; 19. a contact switch; 20. a calibration rod; 21. a positioning seat; 22. a guide groove; 23. a buzzer; 24. a worm wheel; 301. an auxiliary component; 31. a support frame; 33. a hand wheel; 34. a limit column; 35. a PDU body; 36. and a limit rod.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, an embodiment of the present utility model provides an calibration device for an aircraft PDU test stand, which comprises a calibration assembly 101, wherein the calibration assembly 101 comprises a test platform 11, a chamber 12, a worm 13, two locking cylinders 14, two fixing seats 15, an arc clamping plate 16, a tension spring 17, two guide posts 18, three contact switches 19, a calibration rod 20, two positioning seats 21, a guide groove 22 and a worm wheel 24;

the cavity 12 is arranged in the test platform 11, the lower surfaces of the two positioning seats 21 are symmetrically and fixedly connected to two sides of the upper surface of the test platform 11, the guide grooves 22 are arranged on the front surfaces of the positioning seats 21, the front surfaces of the two guide posts 18 are symmetrically and fixedly connected to the rear surface of the calibration rod 20, the three contact switches 19 are symmetrically embedded on the rear surface of the calibration rod 20, one end of the tension spring 17 is fixedly connected to the rear surface of the guide post 18, the outer side wall of the worm 13 is meshed and connected to the outer side wall of the worm wheel 24, the two locking cylinders 14 are symmetrically arranged on the far surfaces of the two fixing seats 15, and the outer side wall of the arc clamping plate 16 is fixedly connected to the cylinder shaft of the locking cylinders 14.

In one embodiment, the lower surfaces of the two fixing bases 15 are symmetrically and fixedly connected to the upper surface of the worm wheel 24, the lower surface of the worm wheel 24 is rotatably connected to the inner bottom wall of the chamber 12, the rear end of the worm 13 is rotatably connected to the inner rear wall of the chamber 12, and the front end of the worm 13 penetrates through the front surface of the test platform 11 and is rotatably connected to the test platform 11, so that the worm wheel 24 can be driven to rotate by the worm 13 to adjust the position of the PDU body 35, and the front surface of the roller of the PDU body 35 is parallel to the front surface of the test platform 11.

In one embodiment, the outer side wall of the guide post 18 is slidably connected to the inner side wall of the guide slot 22, the other end of the tension spring 17 is fixedly connected to the inner rear wall of the guide slot 22, the guide post 18 is pulled by the tension spring 17, and the guide post 18 drives the calibration rod 20 so as to measure the position of the PDU main body 35 through the calibration rod 20.

In one embodiment, an auxiliary assembly 301 is mounted on the upper surface of the test platform 11, and the auxiliary assembly 301 comprises a buzzer 23, a support frame 31, a hand wheel 33, two limit posts 34, a PDU main body 35 and a limit rod 36;

the support frame 31 is installed in test platform 11's upper surface and with test platform 11 sliding connection, and the lateral wall sliding connection of PDU main part 35 is in the inside wall of support frame 31, and support frame 31 rotates and sliding connection with test platform 11, conveniently takes off PDU main part 35 through support frame 31, and the base top protrusion of PDU main part 35 consequently can inject the position of PDU main part 35 through support frame 31, prevents that PDU main part 35 from dropping to in the cavity 12.

In one embodiment, the hand wheel 33 is mounted at the front end of the worm 13, the bottom of the PDU body 35 is located in the cavity 12, the lower part of the outer side wall of the PDU body 35 is attached to the adjacent surfaces of the two arc clamping plates 16, one end of the two limiting columns 34 is symmetrically and fixedly connected to one side of the arc clamping plates 16 far away from the PDU body 35, the other end of the limiting column 34 penetrates through the fixing seat 15 and is far away from one side of the PDU body 35 and is in sliding connection with the fixing seat 15, the cylinder shaft of the locking cylinder 14 penetrates through the fixing seat 15 and is in sliding connection with the fixing seat 15, the arc clamping plates 16 can be pushed by the locking cylinder 14 so as to clamp the PDU body 35 through the two arc clamping plates 16, the position of the PDU body 35 is limited, the worm 13 is conveniently rotated through the hand wheel 33 so as to adjust the position of the PDU body 35, a control switch is arranged outside the test platform 11, and the working state of the locking cylinder 14 can be controlled through the control switch.

In one embodiment, the buzzer 23 is mounted on the upper surface of one positioning seat 21, the limit rod 36 is hinged to the front part of the upper surface of the test platform 11, the rear surface of the calibration rod 20 is attached to the front surface of the roller of the PDU body 35, the position of the PDU body 35 can be measured through the calibration rod 20, when the position of the roller of the PDU body 35 is deviated, the calibration rod 20 cannot be attached to the surface of the roller of the PDU body 35, when the calibration rod 20 is completely attached to the PDU body 35, the front surface of the roller of the PDU body 35 is parallel to the front surface of the test platform 11, the position of the PDU body 35 is accurate, the performance test can be performed on the PDU body 35, the front surface of the calibration rod 20 is provided with a hook, the hook can be connected with the limit post 34 in a hanging manner, and the calibration rod 20 is further far away from the PDU body 35, and the performance test of the PDU body 35 cannot be influenced.

In one embodiment, the electrical output end of the contact switch 19 is electrically connected to the electrical input end of the buzzer 23, and the electrical input end of the contact switch 19 is connected to an external power source for supplying power to the buzzer 23, and when all three contact switches 19 are triggered, the buzzer 23 works.

The utility model works when in work: the PDU main body 35 is placed in the supporting frame 31, at this time, two arc clamping plates 16 are pushed to be close to each other through two locking cylinders 14, the PDU main body 35 is clamped through the two arc clamping plates 16, the position of the PDU main body 35 can be limited, the limiting column 34 is rotated, the position limitation of the calibration rod 20 is relieved, the guide column 18 is pulled through the tension spring 17, the guide column 18 drives the calibration rod 20 to be attached to the roller of the PDU main body 35, at this time, the position of the PDU main body 35 can be measured, the worm 13 is driven by the hand wheel 33 through the rotation of the hand wheel 33, the worm 13 drives the worm wheel 24 to rotate, the worm wheel 24 drives the two fixing seats 15 when rotating, the PDU main body 35 is clamped by the two arc clamping plates 16, the PDU main body 35 can rotate along with the worm wheel 24, at this time, the position of the PDU main body 35 can be adjusted, when the front surface of the roller of the PDU main body 35 is parallel to the front surface of the testing platform 11, the calibration rod 20 is completely attached to the roller of the PDU main body 35 through the tension spring 17, the three contact switches 19 are triggered at this time, the PDU main body 35 is calibrated, the position of the PDU main body 35 is stopped, the rotation of the hand wheel 35 is stopped, the position of the PDU main body 35 is fixed, the position of the PDU main body 35 is then the main body 35 is pulled, and the PDU main body 35 is pulled and the position 20 is far from the front, and the PDU main body 35 is tested, and the position of the PDU main body 35 is far from the position.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An aircraft PDU test stand calibration device, comprising a calibration assembly (101), characterized in that: the calibration assembly (101) comprises a test platform (11), a cavity (12), a worm (13), two locking cylinders (14), two fixing seats (15), an arc clamping plate (16), a tension spring (17), two guide posts (18), three contact switches (19), a calibration rod (20), two positioning seats (21), a guide groove (22) and a worm wheel (24);

the cavity (12) is arranged in the test platform (11), the lower surfaces of the two positioning seats (21) are symmetrically and fixedly connected to two sides of the upper surface of the test platform (11), the guide grooves (22) are arranged on the front surface of the positioning seats (21), the front surfaces of the two guide posts (18) are symmetrically and fixedly connected to the rear surface of the calibration rod (20), the three contact switches (19) are symmetrically embedded in the rear surface of the calibration rod (20), one end of the tension spring (17) is fixedly connected to the rear surface of the guide post (18), the outer side wall of the worm (13) is meshed and connected to the outer side wall of the worm wheel (24), the two locking cylinders (14) are symmetrically arranged on the mutually far surfaces of the two fixing seats (15), and the outer side wall of the arc clamping plate (16) is fixedly connected to the cylinder shaft of the locking cylinders (14).

2. An aircraft PDU test stand calibration device as claimed in claim 1, wherein: the lower surfaces of the two fixing seats (15) are symmetrically and fixedly connected to the upper surface of the worm wheel (24), and the lower surface of the worm wheel (24) is rotatably connected to the inner bottom wall of the cavity (12).

3. An aircraft PDU test stand calibration device as claimed in claim 1, wherein: the rear end of the worm (13) is rotatably connected to the inner rear wall of the cavity (12), and the front end of the worm (13) penetrates through the front surface of the test platform (11) and is rotatably connected with the test platform (11).

4. An aircraft PDU test stand calibration device as claimed in claim 1, wherein: the outer side wall of the guide post (18) is connected to the inner side wall of the guide groove (22) in a sliding mode, and the other end of the tension spring (17) is fixedly connected to the inner rear wall of the guide groove (22).

5. An aircraft PDU test stand calibration device according to claim 3, wherein: an auxiliary assembly (301) is mounted on the upper surface of the test platform (11), and the auxiliary assembly (301) comprises a buzzer (23), a support frame (31), a hand wheel (33), two limit posts (34), a PDU main body (35) and a limit rod (36);

the support frame (31) is installed in the upper surface of test platform (11) and with test platform (11) sliding connection, the lateral wall sliding connection of PDU main part (35) in the inside wall of support frame (31).

6. An aircraft PDU test stand calibration device as recited in claim 5, wherein: the hand wheel (33) is arranged at the front end of the worm (13), the bottom of the PDU main body (35) is positioned in the cavity (12), and the lower part of the outer side wall of the PDU main body (35) is attached to the adjacent surfaces of the two arc clamping plates (16).

7. An aircraft PDU test stand calibration device as recited in claim 5, wherein: one end symmetry fixed connection of two spacing post (34) in arc splint (16) keep away from one side of PDU main part (35), the other end of spacing post (34) run through fixing base (15) keep away from one side of PDU main part (35) and with fixing base (15) sliding connection, the cylinder axle of locking cylinder (14) run through fixing base (15) and with fixing base (15) sliding connection.

8. An aircraft PDU test stand calibration device as recited in claim 5, wherein: the buzzer (23) is arranged on the upper surface of one positioning seat (21), the limiting rod (36) is hinged to the front part of the upper surface of the test platform (11), and the rear surface of the calibration rod (20) is attached to the front surface of the roller of the PDU main body (35).