Adjustable testing device for sea falling test

Abstract

The utility model provides an adjustable testing device for a sea falling test, and belongs to the technical field of aviation structure strength test, the adjustable testing device comprises a track plate mounted on a foundation and provided with a first strip hole extending vertically; the adjusting plate is fixed in the first long-strip hole of the track plate through a connecting piece, and a second long-strip hole extending transversely is formed in the adjusting plate; the mounting plate is fixed in the second strip hole of the adjusting plate through a connecting piece, a laser transmitter or a laser receiver is arranged on the mounting plate, and the speed of the test piece is measured through the oppositely arranged laser transmitter or laser receiver; and the adjusting device is arranged on the mounting plate, and the coaxiality of the laser transmitter and the laser receiver is adjusted through the adjusting device. According to the adjustable speed measuring device, stepless adjustment of the mounting position of the speed measuring sensor for measuring the speed in the vertical and horizontal directions can be achieved, centering adjustment of the axis of the speed measuring sensor can be achieved through the ejector pin adjusting device, and the adjusting process is simple and easy to achieve.

Description

Technical Field

[0001] The present application belongs to the technical field of aviation structure strength testing, and in particular relates to an adjustable testing device for sea drop testing. Background Art

[0002] During the sea-drop test of aviation equipment, the test piece is accelerated to a certain speed in a vertical gun barrel, then ejected from the barrel and directly impacted the water surface in a pool. A velocity measuring device is placed between the water surface and the barrel exit to measure the test piece's speed. However, due to the large spacing between the speed measuring devices, the installation position needs to be adjusted vertically and horizontally. Furthermore, certain coaxial requirements exist between the transmitter and receiver, which require adjustment.

[0003] To this end, in order to take into account work efficiency, safety and cost reduction at the same time, an adjustable speed measuring device that can be used for drop-in-sea tests is needed. Utility Model Content

[0004] The purpose of the present application is to provide an adjustable test device for a drop-into-sea test, so as to solve or alleviate at least one problem in the background technology.

[0005] The technical solution of this application is: an adjustable test device for sea drop test, comprising:

[0006] A track plate installed on a foundation, wherein the track plate is provided with a first elongated hole extending vertically;

[0007] An adjustment plate fixed in the first elongated hole of the track plate by a connecting member, wherein the adjustment plate is provided with a second elongated hole extending laterally;

[0008] a mounting plate fixed to the second elongated hole of the adjustment plate via a connecting member, wherein a laser emitter or a laser receiver is provided on the mounting plate, and the speed of the test piece is measured by the laser emitter or the laser receiver which are arranged opposite to each other; and

[0009] An adjusting device is provided on the mounting plate, and the coaxiality of the laser transmitter and the laser receiver is adjusted by the adjusting device.

[0010] In an optional embodiment of the present application, there are at least two adjustment plates, and the distance between the two adjustment plates on the track plate is greater than the maximum length of the test piece.

[0011] In an optional embodiment of the present application, the adjustment device is a plurality of top screws, and the coaxiality of the laser transmitter and the laser receiver is adjusted by adjusting the length of the top screws relative to the mounting plate.

[0012] In an optional embodiment of the present application, there are three top screws, which are distributed circumferentially with the laser transmitter or laser receiver as the center.

[0013] In an optional embodiment of the present application, the connecting parts include fixing bolts, connecting bolts and spare bolts. The fixing bolts are used to install the track plate on the foundation, the connecting bolts are used to adjust the fixed connection between the plate and the track plate, and the spare bolts are used to connect the laser transmitter and laser receiver to the mounting plate.

[0014] The adjustable speed measuring device of the present application can realize infinite adjustment of the installation position of the speed sensor in the vertical and horizontal directions, and the centering adjustment of the speed sensor axis can be realized by using the adjustment device of the ejector pin. The adjustment process is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions provided by this application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application.

[0016] Figure 1 This is an overall schematic diagram of the adjustable testing device of this application.

[0017] Figure 2 This is a schematic diagram of the installation of various structures of the adjustable test device of this application.

[0018] Figure 3 Schematic diagram of an adjustment device according to an embodiment of the present application.

[0019] 10-Adjustable speed measuring device

[0020] 1-Track plate

[0021] 2-Adjustment plate

[0022] 3-Mounting plate

[0023] 4-Laser transmitter

[0024] 5-Laser Receiver

[0025] 6-Adjustment device

[0026] 7-connecting piece, 71-fixing bolt, 72-connecting bolt, 73-tightening bolt. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application.

[0028] like Figures 1 to 3 As shown, the present application provides an adjustable speed measuring device 10 for a fall-into-sea test, which includes a track plate 1, an adjustment plate 2, a mounting plate 3, a laser transmitter 4, a laser receiver 5, an adjustment device 6 and a connector 7.

[0029] The connecting member 7 includes a fixing bolt 71 , a connecting bolt 72 and a backup bolt 73 .

[0030] The track plate 1 is mounted on the foundation by means of fixing bolts 71 , and a first long hole extending vertically is provided on the track plate 1 .

[0031] There are multiple adjustment plates 2 arranged vertically on the track plate 1. The adjustment plates 2 can move along the first elongated holes of the track plate 1 to achieve overall vertical adjustment. The distance between two adjacent adjustment plates 2 is greater than the maximum length of the test piece. After adjustment, the adjustment plates 2 are fixed to the first elongated holes of the track plate 1 using connecting bolts 72. The adjustment plates 2 are provided with second elongated holes extending laterally.

[0032] The mounting plate 3 is disposed in the second elongated hole of the adjusting plate 2 , and can move laterally relative to the adjusting plate 2 along the second elongated hole. After the horizontal position of the mounting plate 3 is adjusted into place, the mounting plate 3 is fixed relative to the adjusting plate 2 .

[0033] The laser emitter 4 and the laser receiver 5 are respectively arranged on the mounting plates 3 on both sides, and are respectively fixed to the mounting plate 3 on one side through the spare nuts 73. Through the cooperation between the laser emitter 4 and the laser receiver 5, the speed of the test piece passing between the laser emitter 4 and the laser receiver 5 can be measured.

[0034] Adjustment device 6 is composed of multiple top screws and is mounted on mounting plate 3. These top screws are distributed circumferentially around laser emitter 4 or laser receiver 5. Adjustment device 6 is used to adjust mounting plate 3 at the locations where laser emitter 4 and laser receiver 5 are mounted, thereby adjusting the coaxiality of the two. The adjustment device 6 can then be manually shielded to test the signal and ensure proper signal feedback. In some embodiments of the present application, three top screws are typically sufficient, distributed evenly around the laser emitter 4 or laser receiver 5.

[0035] The adjustable speed measuring device of the present application can realize the infinite adjustment of the installation position of the speed measuring sensor (i.e., the laser transmitter 4 and the laser receiver 5) along the vertical and horizontal directions, and the centering adjustment of the axis of the speed sensor can be realized by using the adjustment device of the ejector pin. The adjustment process is simple and easy to implement.

[0036] This application has been successfully applied to sea crash test equipment and can also be used to measure the speed of flight test pieces in industrial and scientific research fields such as aviation and aerospace.

[0037] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An adjustable test device for sea drop test, characterized in that: include: A track plate installed on a foundation, wherein the track plate is provided with a first elongated hole extending vertically; An adjustment plate fixed in the first elongated hole of the track plate by a connecting member, wherein the adjustment plate is provided with a second elongated hole extending laterally; a mounting plate fixed to the second elongated hole of the adjustment plate via a connecting member, wherein a laser emitter or a laser receiver is provided on the mounting plate, and the speed of the test piece is measured by the laser emitter or the laser receiver which are arranged opposite to each other; and An adjusting device is provided on the mounting plate, and the coaxiality of the laser transmitter and the laser receiver is adjusted by the adjusting device.

2. The adjustable test device for sea drop test according to claim 1, characterized in that: There are at least two adjustment plates, and the distance between the two adjustment plates on the track plate is greater than the maximum length of the test piece.

3. The adjustable test device for sea drop test according to claim 1, characterized in that: The adjusting device is a plurality of top screws, and the coaxiality of the laser transmitter and the laser receiver is adjusted by adjusting the length of the top screws relative to the mounting plate.

4. The adjustable test device for sea drop test according to claim 3, characterized in that: There are three top screws, which are distributed circumferentially with the laser transmitter or the laser receiver as the center.

5. The adjustable test device for sea drop test according to claim 1, characterized in that: The connecting parts include fixing bolts, connecting bolts and spare bolts. The fixing bolts are used to install the track plate on the foundation, the connecting bolts are used to fix the adjustment plate and the track plate, and the spare bolts are used to connect the laser transmitter and laser receiver to the mounting plate.

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