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Adjustable and controllable worm transmission mechanism used for wheelchair

A worm drive, wheelchair technology, applied in gear transmission, transmission, control of mechanical energy and other directions, can solve problems such as arm sprains

Inactive Publication Date: 2018-02-02
CHANGSHU PINGFANG WHEELCHAIR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of the currently used wheelchair, it is difficult for people to turn it off after turning on the drive motor switch due to wrong operation; and the arm may be sprained due to people's subconscious actions; this has brought a lot of inconvenience to the user; so the design A wheelchair transmission mechanism that can have enough time to close or adjust when people turn on the drive motor switch due to a wrong operation through automatic adjustment is very necessary

Method used

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  • Adjustable and controllable worm transmission mechanism used for wheelchair
  • Adjustable and controllable worm transmission mechanism used for wheelchair
  • Adjustable and controllable worm transmission mechanism used for wheelchair

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specific Embodiment approach

[0040] The specific implementation method: people use the wheelchair designed by the present invention, and people control and adjust the motor 15 before use; drive the adjustment U-shaped ring 13 to rotate by the adjustment motor 15; adjust the U-shaped ring 13 to drive the adjustment screw wheel 14 to rotate; The motor 1 is in a stopped state; that is, the inner gear ring 9 is in a static state; the inner gear ring 9 cooperates with the external thread on the adjusting threaded wheel 14; so when the adjusting threaded wheel 14 rotates, the adjusting threaded wheel 14 will be adjusted The axis moves, that is, the relative position of the adjusting screw wheel 14 and the driving spring 6 can be controlled by controlling the adjusting motor 15 ; thus the initial elastic performance of the driving spring 6 can be controlled. Then control the maximum torque that the drive spring 6 can transmit; when people adjust the initial elastic performance of the thread; control the drive mot...

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Abstract

The invention belongs to the technical field of wheelchair driving, and particularly relates to an adjustable and controllable worm transmission mechanism used for a wheelchair. The adjustable and controllable worm transmission mechanism comprises a driving motor, a driving spring and a transmission gear. When people use the wheelchair, an adjusting motor is controlled by people before using; an adjusting U-shaped ring is driven to rotate by the adjusting motor, an adjusting threaded wheel is driven to rotate by the adjusting U-shaped ring, and when the adjusting threaded wheel rotates, the adjusting threaded wheel can move along an axis of the adjusting threaded wheel, namely, initial elastic performance of the driving spring can be controlled through the adjusting motor, and maximum torque which can be transmitted by the driving spring is controlled accordingly; and when initial elastic performance of a thread is well adjusted by people, the driving motor is controlled to start to work, a transmission shaft is driven to rotate by the driving motor, two spring fixed discs are driven to rotate by the transmission shaft, the driving spring is driven to rotate by the two spring fixeddiscs, the transmission gear is driven to rotate by rotating of the driving spring, a gear shaft is driven to rotate by the transmission gear, and the wheelchair is driven to work by rotating of thegear shaft.

Description

technical field [0001] The invention belongs to the technical field of wheelchair driving, in particular to an adjustable worm drive mechanism for wheelchairs. Background technique [0002] During the use of the currently used wheelchair, it is difficult for people to turn it off after turning on the drive motor switch due to wrong operation; and the arm may be sprained due to people's subconscious actions; this has brought a lot of inconvenience to the user; so the design A wheelchair transmission mechanism that can have enough time to close or adjust when people turn on the drive motor switch due to a wrong operation through automatic adjustment is very necessary. [0003] The present invention designs an adjustable worm drive mechanism for wheelchairs to solve the above problems. Contents of the invention [0004] In order to solve the above-mentioned defects in the prior art, the present invention discloses an adjustable worm drive mechanism for wheelchairs, which is ...

Claims

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Application Information

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IPC IPC(8): F16H1/16H02K7/116A61G5/04A61G5/10
CPCH02K7/1166F16H1/16A61G5/04A61G5/10
Inventor 朱剑
Owner CHANGSHU PINGFANG WHEELCHAIR CO LTD
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