Reducer anti-torque structure of medical robot

A reducer and anti-torque technology, applied in the field of medical equipment, can solve the problems of increasing the joint volume of the robot and increasing the cost, and achieve the effects of simple structure, cost saving and easy transformation

Active Publication Date: 2016-10-26
CHONGQING JINSHAN SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the safety of medical robots and prevent sudden falls, the safety control of the robotic arm is often achieved by increasin

Method used

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  • Reducer anti-torque structure of medical robot
  • Reducer anti-torque structure of medical robot
  • Reducer anti-torque structure of medical robot

Examples

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[0020] The present invention will be further described below in conjunction with the drawings and embodiments:

[0021] Such as figure 1 , figure 2 As shown, the robotic arm of the medical robot is a tandem structure consisting of a first joint a, a second joint b, and a third joint c. The first joint a is a pitch joint, which determines the up and down movement of the entire robotic arm; the second joint b And the third joint c determines the movement of the robot arm in the plane. A medical examination device may be provided at the end of the robotic arm. Therefore, according to the principles of physics, if the end is heavier, the first joint a will bear a greater moment when moving up and down. If the motor or reducer torque selection margin is insufficient during the design of the robot, and the downward gravity cannot be balanced, it may cause the manipulator arm to slip and cause danger to the human body; if a motor or a motor with sufficient torque margin is selected Th...

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Abstract

The invention discloses a reducer anti-torque structure of a medical robot. A positioning shaft is arranged beside a reducer and rotationally connected with a pitching arm; the positioning shaft and a rotary base are fixed; a torsional spring base is installed on the positioning shaft and sleeved with a torsional spring; an inner hook of the torsional spring is connected with the torsional spring base; and an outer hook of the torsional spring is connected with the pitching arm. The torque of the reducer is balanced through the torsional spring, so that on the one hand, a mechanical arm of the medical robot is effectively prevented from sliding off, and the potential safety hazard is eliminated; on the other hand, torque, size and motor power of the reducer are reduced properly, so that the overall size is reduced, and the cost is effectively saved; and meanwhile, after the torsional spring is additionally arranged, when a motor is out of control suddenly, the torsional spring can achieve the buffering function, and the risk is effectively reduced. The reducer anti-torque structure of the medical robot has the characteristics of being reasonable in design, simple and compact in structure, easy to assemble, safe, reliable, easy to modify, low in modification cost, and the like, and can be applicable for various medical robots.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an anti-torque structure of a medical robot reducer. Background technique [0002] With the continuous advancement of medical technology and the development of industrial automation, more and more robots have been applied to the medical industry, such as CT machines, surgical robots, and endoscope control robots. Medical robots can achieve precise movement and positioning during medical inspections, and can also solve problems such as shaking and physical fatigue caused by manual operations. But at the same time, the difference between medical robots and industrial robots is that medical robots have higher safety requirements, so more safety measures will be introduced. [0003] In medical multi-degree-of-freedom robots, the tandem structure is more commonly used, but due to the longer arm, it often bears greater gravity at the end. The robot motion joint is...

Claims

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Application Information

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IPC IPC(8): B25J19/06B25J17/00A61B34/30
CPCB25J17/00B25J19/06
Inventor 王黎李彦俊梁东
Owner CHONGQING JINSHAN SCI & TECH GRP
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