Stepless adjusting device applicable to lengths of four limbs of rehabilitation robot

Abstract

The invention discloses a stepless adjusting device applicable to the lengths of four limbs of a rehabilitation robot. The stepless adjusting device comprises a fixed rod, a slide rod and a stepless adjusting mechanism. The stepless adjusting mechanism comprises a bevel gear shaft system and a lead screw pair transmission shaft system. The bevel gear shaft system comprises a bevel gear shaft and two meshing bevel gears. One end of each bevel gear is mounted in a groove, the other end of each bevel gear extends out of the fixed rod, and rotary operation portions are formed at the other ends of the bevel gears. One of the bevel gears is coaxially fixed to the bevel gear shaft and can be driven by the bevel gear shaft to rotate. The lead screw pair transmission shaft system comprises a lead screw shaft, a lead screw deep groove ball bearing and a nut. One end of the lead screw shaft is coaxially fixed to the other bevel gear, the other end of the lead screw shaft is screwed with the nut and extends into the slide rod via the nut. The lead screw deep groove ball bearing is matched with the lead screw shaft and is mounted between the inner side walls of the grooves and the lead screw shaft. Rotary force of the operation portions of the bevel gear shaft can be transmitted onto the lead screw shaft by the aid of meshing of the two bevel gears, and the nut can be ultimately driven to drive the slide rod to move relative to the fixed rod.

Description

Technical field [0001] The invention relates to a rehabilitation equipment in the medical field, in particular to a stepless adjustment device suitable for the length of the limbs of a rehabilitation robot. Background technique [0002] In recent years, the number of physically disabled people in my country has been increasing, and there is a huge gap in the demand and supply of rehabilitation training for patients. With the increase of the aging trend, the rehabilitation demand brought by the high incidence of the elderly makes the demand space of the rehabilitation medical industry continue to increase. Traditional artificial or simple medical equipment can no longer meet the rehabilitation needs of patients, and rehabilitation robots can reduce the number of accompanying persons. , And help patients achieve rehabilitation more effectively, which also increases the demand for limb rehabilitation equipment such as upper and lower limb rehabilitation robots. [0003] There are man...

AI Technical Summary

Problems solved by technology

[0004] Fixed mechanical limbs are roughly divided into different lengths of mechanical limbs based on different people. There are disadvantages: the length of fixed mechanical limbs cannot meet the use requirements of people of different heights in a small range, and the addition of product accessories

[0005] Equidistant hole length adjustment is to open a number of equidistant threads or light holes on one side of the sliding rod, and then adjust after alignment by rotating the handle or elastic bolt; there are disadvantages: double hole alignment, locking and other actions are required, reducing the operational efficiency

Several equidistant holes solve the requirements of limbs of different sizes, but there are actions such as alignment and locking, which reduce the operating efficiency

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