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Direct drive radar turntable

A turntable and radar technology, applied to antennas, electrical components, antenna supports/installation devices, etc., can solve the problems of reduced accuracy, high maintenance costs, shortened life, etc., to avoid unreliable factors, reduce maintenance costs, and the number of spare parts. reduced effect

Active Publication Date: 2021-07-13
南京智真电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing radar turntables have the following disadvantages: 1. The accuracy is reduced by the introduction of transmission links such as tooth backlash and electromagnetic clutch; 2. The transmission chain is long, the accuracy gradually decreases with the wear of mechanical parts, and the service life is also significantly shortened ; 3. Several disadvantages such as high maintenance cost, high technical level requirements for maintenance personnel, and large number of spare parts

Method used

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Embodiment Construction

[0015] The direct-drive radar turntable of the present invention includes a base 1, an upper bracket 11, an upper connecting plate 4, a slewing support 10, the slewing support 10 adopts four-point contact ball bearings, a motor stator 2, a motor rotor 3, A lower end cap 5. The parts are combined in turn to form a concentric rotary motion. The motor stator 2, the outer ring of the slewing bearing 10, and the upper bracket 11 are fixed to the base 1, the motor rotor 3 is fixed to the upper connecting plate 4, the upper connecting plate 4 is fixed to the inner ring of the slewing bearing 10, and the lower end cover 5 is fixed to the motor stator 2 on.

[0016] The base 1 has a positioning step, the lower surface of the upper bracket 11 has grooves, and the axial positioning surface of the motor housing also has grooves, and the first O-ring 12 realizes the sealing cavity of the slewing bearing 10 oil bath lubrication (base 1, upper bracket 11 , The motor stator 2 jointly consti...

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Abstract

The invention discloses a direct-drive radar turntable, which comprises a base (1), an upper bracket (11), an upper connection plate (4), a four-point contact bearing (10), a motor stator (2), a motor rotor (3), Lower end cap (5). The motor stator (2) and the upper bracket (11) are coaxially fixedly connected to the base (1), and the outer ring of the bearing (10) is connected to the base 1 through bolts; the upper connection plate (4) is connected to the bearing through positioning steps and bolts. (10) The inner ring is connected, the motor rotor (3) is connected with the upper connection plate (4) through the positioning surface and bolts, and the lower end cover (5) is connected with the motor stator (2) through the positioning boss and bolts. The invention eliminates the intermediate transmission link, avoids unreliable factors in the transmission link, has simple structure, less parts and spare parts, and low maintenance cost.

Description

technical field [0001] The invention belongs to the radar turntable adopting the direct drive technology, in particular, it is a direct drive radar turntable which eliminates the intermediate transmission link. Background technique [0002] The radar turntable mainly realizes the requirement of radar antenna rotation in the national defense field, and the precision and reliability of the turntable directly affect the accuracy and reliability of the whole radar. The traditional radar turntable uses a single motor to drive the planetary gear reducer, and then drives the antenna through a pair of gears. The motor is always running at high speed. The motor output shaft bearing and the high-speed gear of the planetary reducer are easily damaged, which is an inevitable shortcoming of this scheme. In order to improve mission reliability, foreign air traffic control radars adopt a dual-motor drive scheme, that is, a set of motors and a planetary reducer are added to the drive end, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/04H01Q3/02H01Q1/12
CPCH01Q1/12H01Q3/02H01Q3/04
Inventor 王文运贲宇朱亮亮
Owner 南京智真电子科技股份有限公司
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