One-way cable driven pitching motion type large radio telescope

Abstract

The invention discloses a one-way cable driven pitching motion type large radio telescope, which belongs to the technical field of antennas. The radio telescope comprises a reflector, a seat frame for bearing the reflector, a cable driving device and other main parts, and further comprises a cable stabilizing mechanism, a precision control mechanism, a pitching limiting device and other accessory structures. Compared with a traditional structure, the radio telescope achieves large-range pitching motion of the reflector in a one-way cable driving mode, and therefore the height and the weight of the whole structure are effectively reduced. The radio telescope has the characteristics of compact structure, high reliability, low cost, convenience in maintenance and the like.

Description

Technical field[0001]The present invention relates to the field of antenna technology, and more particularly to a single-directional cable-driven pitch moving large-scale radio telescope.Background technique[0002]With the continuous improvement of society and the growth of scientific and technological capabilities, humans are not satisfied with existing exploration, and the eyes are turned to a more distant broad space. In view of the unknown organ, study the origin of the universe, exploring the exterior life, etc., is more important for the importance of the importance of important research purposes, and has obtained a greater attention of scientists. The radio astronomy has now entered the high sensitivity, the big sample era, which requires more sensitive and more powerful precision astronomical observations to detect smaller dimers. This precision radio astronomical observation device is a radio telescope.[0003]Starting from the World War II, major developed countries in the wo...

AI Technical Summary

Problems solved by technology

[0009] The central rotation axis of the fan tooth coincides with the pitch motion central axis of the telescope antenna reflector, and the large-diameter reflector will inevitably require a corresponding large-diameter fan gear, and the large-diameter fan gear is fixed below the reflector, which will inevitably greatly increase The overall height of the reflector is increased, and the increase in the height of the reflector will inevitably lead to an increase in the height of the mount

[0010] 2. The form of pitching motion driven by the fan teeth will increase the weight of the moving part of the structure

[0012] 3. The reliability of pitch motion driven by fan teeth is low

Since the driving of the sector gear is a rigid form, the energy of these bad movements can only be transmitted to the meshing surface of the gear, the pitch axis of the reflector, and the internal absorption and digestion of the structure, which will bring risks to the internal structure

In addition, because the sector gears bear a lot of force for a long time, especially on the meshing tooth surfaces, there will be a large alternating compressive stress. If things go on like this, the sector gears are prone to failure risks such as wear, chipping, and failure.

[0016] 4. The cost of pitching motion driven by fan teeth is high, and the design, manufacture and installation are difficult

The huge size and weight of the fan gear itself is very difficult to design and manufacture, and the installation of the gear and the adjustment of the backlash are even more difficult.

And these design, manufacture and installation will inevitably cause a large increase in cost

[0018] 5. The traditional structure is not conducive to the maintenance and replacement of pitching moving parts

However, due to the large size of the traditional structure, the fan gear and motor reducer of the moving part are all at a height of tens of meters, the space is seriously blocked, and the operation is inconvenient; the fan gear and supporting mechanism are huge in size and weight, and are fixedly connected to the reflector Below, as part of the reflector for the moving part

The disassembly of the fan gear mechanism and the change of the force will obviously change the structure and force balance of the original structure; the fan gear drive mechanism itself is also a moving braking mechanism, and it is difficult to have other means of balance and movement when the fan gear mechanism is disabled reflector

This makes the maintenance and replacement operations of the sector gear very difficult

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