CN214204215U

CN214204215U - Revolving stage cable switching device

Info

Publication number: CN214204215U
Application number: CN202120093866.7U
Authority: CN
Inventors: 孙湘琪; 丁涛
Original assignee: Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
Current assignee: Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-09-14
Anticipated expiration: 2031-01-14

Abstract

The utility model provides a revolving stage cable switching device, includes the socket box body, install the first connector that is used for with test cable connection on the socket box body, first connector is connected with the second connector through the extension cable, the second connector is connected to outer connector with the revolving stage when the test. The utility model discloses convert the second connector of a fixed model with different revolving stage external interfaces through first connector, guarantee the uniformity of different model revolving stage external interfaces, only need a test cable to test the revolving stage of different models from this, saved the test cable cost, guaranteed the quality of product.

Description

Revolving stage cable switching device

Technical Field

The utility model belongs to the technical field of mechanical device and transportation application, concretely relates to a revolving stage cable switching device when being used for testing strapdown inertial navigation system (being used for short for navigation) product.

Background

The inertial navigation system (hereinafter, referred to as inertial navigation) often needs to use a turntable to perform a functional test, and there are some practical problems in the test process:

1. in the inertial navigation batch production process, the types of the rotary tables are more, and the rotary tables corresponding to the different types of the rotary tables have different external interfaces. The test cables with various interfaces are required to be manufactured due to different external interfaces of the rotary table. During testing, accidents of wrong cables and wrong products are easy to occur, and the quality of the products is seriously influenced;

2. by designing special test cables for different turntables, errors can be prevented. But the manufacturing process cycle of the test cable is long, the production efficiency is greatly influenced, the purchasing cost of the connector is high, and the cost of manufacturing the special tooling cable is increased;

3. the distance between the rotary table and the test table is too long, the length of a test cable is basically more than 10m, and the electric signals are easily interfered and the signal intensity is easily attenuated due to the too long length of the cable. The stability and reliability of the test of the product on the rotary table are greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a revolving stage cable switching device to solve the problem that exists when current revolving stage tests.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a revolving stage cable switching device, includes the socket box body, install the first connector that is used for with test cable connection on the socket box body, first connector is connected with the second connector through the extension cable, the second connector is connected to outer connector with the revolving stage when the test.

The utility model discloses a revolving stage cable switching device converts the second connector of a fixed model with different revolving stages external tapping through first connector, guarantees the uniformity of different model revolving stages external tapping, only needs a test cable to test the revolving stage of different models from this, has also guaranteed the quality of product when saving the test cable cost.

Preferably, the length of the extension cable is not less than 8 meters, so that the test cable can be shortened by more than 8 meters, and interference of electric signals is avoided.

Preferably, an electrical shielding device is arranged outside the extension cable to enhance the anti-interference capability of the extension cable to signals.

Preferably, the socket box body is fixed on the test table through screws.

Preferably, the socket box body is provided with a wire clamp for fixing the extension cable.

Preferably, the number of the first connectors is two, and each of the first connectors is connected to one of the second connectors through the extension cable.

For different turntables it is sometimes necessary to connect two second connectors, whereby two first connectors are provided.

The utility model has the advantages that: the utility model converts different rotary table external interfaces into a second connector with a fixed model through the first connector, thereby ensuring the consistency of the rotary table external interfaces with different models, simplifying the original test cable which needs multiple rotary tables into a test cable which can be universally used for multiple rotary tables, saving the cost of the test cable and ensuring the quality of products; the utility model adopts the extension cable with the length of more than 8 meters, so that the test cable can be shortened by more than 8 meters, and meanwhile, the anti-interference capability of signals is ensured by adopting shielding treatment on the extension cable; the adapter device is arranged on the test table, so that the test cable can be conveniently detached, an operator does not need to enter a shock insulation foundation pit to install and detach the test cable at each time, and manpower is saved.

Drawings

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

fig. 2 is a connection diagram of the middle extension cable according to the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 and 2, the turntable cable adapter device comprises a first connector 2, an extension cable 3 and a second connector 4 which are connected in sequence, wherein the first connector 2 is fixed on a socket box body 1, and the socket box body 1 is fixed on a test table through a screw 5. During testing, the second connector 4 is connected to the rotary table external connector (the rotary table external connector is arranged on the rotary table, and is not shown in the attached drawing), so that the rotary table external connector is not required to be detached in each test, the manpower is reduced, and the service life of the rotary table external connector is prolonged. The second connector 4 is connected to the extension cable 3, and a clip 6 is mounted on the socket case 1 by a screw 7 to fix the extension cable 3. Because the length of the extension cable 3 is not less than 8 meters, all points of the rotary table slip ring (the rotary table slip ring is a rotary table test signal transfer line, and the line head of the rotary table slip ring is connected to the rotary table external connector) are led out, and meanwhile, an electric shielding device is arranged outside the extension cable 3 to ensure the anti-interference capability of the extension cable to signals, so that the problem that the test result is influenced by the overlong length of the test cable is solved. Both ends of the extension cable 3 are provided with cable covers 8.

The utility model discloses well first connector 2 has the uniqueness, has solved the different problem of different revolving stages external tapping. Therefore, the rotary tables of different models only need to manufacture one test cable for testing, and the manufacturing cost of the tool is greatly reduced. The use efficiency of the rotary table is improved.

According to the utility model discloses design and experimental verification, the assembly degree of difficulty is low, and easy operation is nimble, is applicable to each model strapdown and is used to lead and carry out functional test on multiple model revolving stage, is used to lead in the strapdown and possess wide application prospect in the revolving stage test.

Claims

1. The utility model provides a revolving stage cable switching device, its characterized in that, includes socket box body (1), install on socket box body (1) and be used for with test cable connection's first connector (2), first connector (2) are connected with second connector (4) through extension cable (3), second connector (4) are connected to outer connector with the revolving stage when the test.

2. Turntable cable transition device according to claim 1, characterized in that the length of the extension cable (3) is not less than 8 meters.

3. Turntable cable transition device according to claim 1, characterized in that the extension cable (3) is externally provided with an electrical shielding device.

4. Turntable cable transition device according to claim 1, characterized in that the socket enclosure (1) is fixed to the test table by means of screws (5).

5. Turntable cable transition device according to claim 1, characterized in that the socket housing (1) is fitted with a clamp (6) for fixing the extension cable (3).

6. Turntable cable transition device according to claim 1, characterized in that two first connectors (2) are provided, each first connector (2) being connected to one second connector (4) by means of an extension cable (3).