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Balancing devices for rotary machines

A balancing device, rotary technology, applied in mechanical equipment, installation, shafts and bearings, etc., can solve problems such as difficult balancing effect, fatigue failure, and decrease in strength of coil springs

Active Publication Date: 2021-04-13
CARL ZEISS MEDITEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the torque output by the helical spring is linear, while the unbalanced torque caused by the movement of the center of gravity of the surgical microscope body relative to the rotating shaft usually exhibits a sine or cosine curve, so this known balance system exists in principle or effect Certain restrictions, it is not easy to achieve a better balance effect
Secondly, due to its inherent fatigue strength, the coil spring is prone to the problem of strength decline after long-term repeated bending, and even the risk of fatigue failure
Finally, for strength, this helical spring type balancing system may require a large installation space

Method used

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  • Balancing devices for rotary machines
  • Balancing devices for rotary machines
  • Balancing devices for rotary machines

Examples

Experimental program
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Effect test

Embodiment Construction

[0047] see figure 1 , where a surgical microscope system is shown as an example of a swivel device. The operating microscope system includes an operating microscope body 1 , which is carried by a balance arm 2 and capable of swinging around an axis 5 and rolling around an axis 6 . A rotational axis 5 a defines said shaft 5 . A rotational axis 6 a defines said shaft 6 . The balance hanging arm 2 is connected to the rotating shaft 5a and the rotating shaft 6a. The balance hanging arm 2 is attached to the bracket main body of the operating microscope system through the connection interface 3 .

[0048] In use, the surgical microscope body 1 should be able to quickly and accurately align the surgical site of the patient. For this reason, the surgical microscope body 1 needs to perform pivoting or swinging motions such as swinging left and right or rolling back and forth around the rotating shaft 5a and rotating shaft 6a as a revolving body, and needs to be able to maintain its...

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Abstract

The invention relates to a balancing device for a rotary machine comprising a rotary body which is pivotable or oscillating about at least one axis of rotation. According to the present invention, the balance device includes a magnet assembly and a torque adjustment mechanism, wherein the magnet assembly at least includes a combination of two or more magnets, and the torque adjustment mechanism is configured to be able to adjust The torque generated by the combination of more than two magnets. The balancing device of the invention can produce a cosine or sine output moment perfectly matched with the unbalanced moment of the revolving body, and has the advantages of small space occupation and no fatigue failure.

Description

technical field [0001] The present invention relates to a rotary device having a rotary body, such as a surgical microscope body (also referred to as a surgical microscope head) attached to a balancing arm in a surgical microscope system, which is capable of pivoting or oscillating about at least one axis of rotation And can maintain its position or state after pivoting or swinging, for example, the surgical microscope body can pivot around the axis 5 and the axis 6 of the operating microscope system. More specifically, the present invention relates to a self-balancing device for maintaining the position of the revolving body of such a revolving machine in the event that the center of gravity of the revolving body changes relative to the axis of rotation during the revolving process. Background technique [0002] Devices are known in which the main working parts are arranged projecting relative to a frame or base of the device and are pivotable or oscillating about one or mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C11/04G02B7/00G02B21/00
CPCF16C11/04G02B7/001G02B21/0012F16C2370/20
Inventor 刘臣才舒建伟C·P·库伯勒
Owner CARL ZEISS MEDITEC AG