Theodolite braking device

A brake device and theodolite technology, applied in theodolite and other directions, can solve the problems of high-precision theodolite, easy overshoot of servo motor, small application range, etc., and achieve wide range of load and speed, compact structure, and easy operation Effect

Inactive Publication Date: 2010-06-23
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. Poor stability
When changing from dynamic to static, the servo motor is prone to overshoot, which causes system oscillation. When pointing at a certain angle, the pointer shakes left and right before finding the target phenomenon.
The positioning time is relatively long, generally above 200 milliseconds
[0005] 3. The scope of application is small
Due to the existence of the above shortcomings, it cannot meet the application of high precision and high speed theodolite

Method used

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  • Theodolite braking device
  • Theodolite braking device

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Embodiment Construction

[0019] see figure 1 , the present invention provides a kind of braking device of theodolite, comprise theodolite base 14, and be arranged on theodolite rotating shaft 1 on the theodolite base 14, theodolite rotating shaft 1 is fixedly provided with electromagnetic brake contact plate 5; On the theodolite base 14, fixedly arrange There is an electromagnetic brake device corresponding to the position of the electromagnetic brake contact disc 5; a gap is provided between the electromagnetic brake device and the electromagnetic brake contact disc 5.

[0020] The theodolite rotating shaft also includes a brake connecting disc 9 fixed on the theodolite rotating shaft 1 , and the brake connecting disc 9 is fixedly connected with the electromagnetic brake contact disc 5 . The theodolite base 14 is also provided with an electromagnetic fixing seat 6 on which the electromagnetic braking device is fixed.

[0021] The electromagnetic brake device is a combination of an electromagnetic br...

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Abstract

The invention relates to a theodolite braking device which comprises a theodolite base and a theodolite rotating shaft arranged on the theodolite base. An electromagnetic braking contact disc is fixedly arranged on the theodolite rotating shaft, an electromagnetic braking device is fixedly arranged on the theodolite base, the position of the electromagnetic braking contact disc is corresponding to that of the electromagnetic braking device, and a gap is arranged between the electromagnetic braking device and the electromagnetic braking contact disc. The provided theodolite braking device has the characteristics of large braking torque, high speed, good stability, simple structure, convenient installation, and accurate positioning; moreover, the theodolite braking device can conveniently realize the maintaining of the braking.

Description

technical field [0001] The invention relates to a brake device, in particular to a brake device for a theodolite. Background technique [0002] The braking devices of current theodolites are all composed of control systems with servo motors. The braking devices of this structure have the following disadvantages: [0003] 1. The braking torque is small and the response speed is slow. Since the rotational torque is limited by the braking current of the servo motor, the braking torque capacity is limited. The rotational torque is proportional to the servo braking current and the volume of the mechanism (that is, a large torque must be equipped with a large motor), and proportional to the braking capacity and response speed. inverse ratio. [0004] 2. Poor stability. The servo control system includes a servo motor, also known as an executive motor. In an automatic control system, it is used as an actuator to convert the received electrical signal into an angular displacement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/02
Inventor 鬲滨李忠升刘朝晖楼拯
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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