Rotation limiting device

A technology of rotation limit and reset device, applied in the direction of using feedback control, etc., can solve problems such as mast pull down, radio frequency cable, control cable power line damage, sensitivity and safety performance are difficult to meet the needs, etc., to achieve the effect of limiting the rotation angle

Active Publication Date: 2013-06-26
李建斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sensitivity and safety performance of the existing limiting device for limiting the rotation angle is difficult to meet the needs. If the operation of limiting the rotation angle fails, it is often easy to cause damage to the radio frequency cable, control cable, power cord, etc. due to cable entanglement, and even the erection Test antenna mast pulled down

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] figure 1 A perspective view of a rotation limiting device provided by a preferred embodiment of the present invention. figure 2 A cross-sectional view of a rotation limiting device provided by a preferred embodiment of the present invention. The rotation limiting device of the present invention is used to limit the rotation angle of the rotating shaft 90 driven by a motor (not shown in the figure) to rotate around an axis L, and includes a first paddle 1, a second paddle 2, and a first tact switch 3 And the fixed part 8, and the second tact switch 4, the first photoelectric pair tube 5, the second photoelectric pair tube 6 and the reset device 7.

[0020] Wherein, the fixing part 8 is fixedly arranged on the motor and does not rotate w...

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PUM

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Abstract

The invention discloses a rotation limiting device. The rotation limiting device is used for limiting a rotational angle of a rotary shaft which is driven by a motor to rotate around an axis. The rotation limiting device comprises a first shifting plate, a second shifting plate, a first tact switch and a fixed portion; the fixed portion is fixedly arranged on the motor and does not rotate along with the rotary shaft; the first shifting plate can synchronously rotate along with the rotary shaft and is provided with a first rotating portion and a first protruded portion, the first rotating portion is clamped on the rotary shaft, and the first protruded portion extends from the first rotating portion; the second shifting plate can be driven by the first protruded portion to rotate around the rotary shaft and is provided with a second rotating portion, a shifting portion and a second protruded portion, the second rotating portion encircles the rotary shaft, the shifting portion extends from the second rotating portion and can be driven by the first protruded portion, and the second protruded portion extends from the second rotating portion and can press the first tact switch; and the first tact switch is arranged on the fixed portion and controls interruption of power supply for the motor when the first tact switch is pressed by the second protruded portion, so that the rotary shaft stops rotating. The rotation limiting device has the advantage that the rotation limiting device is provided with the tact switch, so that the rotational angle of the rotary shaft can be safely controlled.

Description

technical field [0001] The invention relates to a limiting device, in particular to a rotation limiting device for limiting the rotation angle of a rotating shaft driven by a motor. Background technique [0002] Radio telescopes are basic equipment used to observe and study radio waves from celestial bodies. The extremely high sensitivity of radio telescopes requires them to be built in areas where the radio wave environment is extremely quiet, and the selection of these sites requires special radio wave environment monitoring equipment, which requires detailed environmental data in 360 degrees, and requires high-gain directional antennas to make them Automatic rotation and no twisting of control cables and RF cables, therefore, the maximum rotation angle needs to be limited between 360° and 720°. The sensitivity and safety performance of the existing limiting device for limiting the rotation angle is difficult to meet the needs. If the operation of limiting the rotation an...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 李建斌
Owner 李建斌
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