An autonomous stair-climbing wheelchair

The invention discloses a multifunctional carrying assisting trolley which comprises a trolley frame, a walking mechanism and a drive device The walking mechanism comprises an axle and multiple wheels symmetrically arranged at the two ends of the axle and connected to the corresponding ends of the axle through planet transmission mechanisms The wheels are rotationally connected to planet carriers of the planet transmission mechanisms and driven by planet gears to rotate The drive device is installed on the trolley frame and used for driving the axle and an axle sleeve to rotate By the adoption of the multifunctional carrying assisting trolley, through a series of material searching and practical inspection, on the premise of the combination of existing stair climbing goods transporting equipment, a design thought with a planet gear train differential mechanism as the center is utilized, and a small stair climbing goods transporting mechanical device aiming at reliving the labor intensity of a postman in the stair climbing goods transporting process and being capable of guaranteeing commodity safety and low in cost is designed Compared with an existing device, the trolley further improves the user experience while the use convenience and safety are guaranteed, and meanwhile the multifunctional carrying assisting trolley has the beneficial effects of being simple in structure, small in size, low in mass and convenient to carry

Multifunctional carrying assisting trolley

The invention discloses a self-adaptive obstacle crossing mechanism which comprises a drive motor, an inner planet carrier, a sun gear, planet gears, center chain wheels, a plurality of planet chain wheels, a chain and advancing wheels, wherein the inner planet carrier is composed of at least two support legs which extend outward; the sun gear and the planet gears are arranged on one side surface, facing the drive motor, of the inner planet carrier; the center chain wheels and a plurality of planet chain wheels are arranged on the other side surface of the inner planet carrier; the sun gear is rotationally fixed to the inner planet carrier through a first shaft and is connected with a motor output shaft; the planet gears are rotationally fixed to the inner planet carrier through second shafts respectively and are also meshed with the sun gear; the center chain wheels are fixed to the second shafts respectively and rotate with the planet gears together; a plurality of planet chain wheels are rotationally arranged at the outer ends of the support legs in a one-to-one correspondence manner; the chain is simultaneously meshed with the center chain wheels and a plurality of planet chain wheels; the advancing wheels are coaxially fixed with a plurality of planet chain wheels respectively and rotate with a plurality of planet chain wheels together. The self-adaptive obstacle crossing mechanism regulates the torque of the drive motor to ensure successful obstacle crossing of an obstacle crossing robot according to different obstacle crossing conditions.

Self-adaptive obstacle crossing mechanism

The invention discloses a wheel turning type electric stair climbing delivery cart. The wheel turning type electric stair climbing delivery cart comprises a frame, a front axle and a rear axle, wherein a push rod and a box are fixed to the frame, front bearing bushes are fixed to the two sides of the front end of the frame respectively, a first bearing is installed in each front bearing bush, and the front axle penetrates through the front bearing bushes; a left front wheel and a right front wheel are both installed on the front axle, a first large gear is installed on the front axle, a front driving motor is installed on the front portion of the frame, a first small gear is installed on an output shaft of the front driving motor, and the first large gear is meshed with the first small gear; a rear bearing bush is fixed to the rear end of the frame, a second bearing is installed in the rear bearing bush, the rear axle penetrates through the rear bearing bush, and a rear wheel is installed on the rear axle; a second large gear is installed on the rear axle, a rear driving motor is installed on the rear portion of the frame, a second small gear is installed on an output shaft of the rear driving motor, and the second large gear is meshed with the second small gear. The wheel turning type electric stair climbing delivery cart can effectively solve the problem that in the prior art, a lot of effort is required when a courier delivers goods upstairs, the working intensity of the courier can be relieved greatly, and practicality is high.

Wheel turning type electric stair climbing delivery cart

The invention provides a disengaging and engaging mechanism on an automobile wheel and belongs to the technical field of automobiles. The disengaging and engaging mechanism comprises a first mountingplate and a second mounting plate which are arranged in a shell. A plurality of first mounting holes in one-to-one correspondence with first chain wheels III are formed in the first mounting plate. First disengaging and engaging discs located in the first mounting holes are fixedly arranged on a first rotating shaft, and second disengaging and engaging discs located in second mounting holes are fixedly arranged on a second rotating shaft. Fixing plates in one-to-one correspondence with all the first mounting holes are arranged between the first mounting plate and the second mounting plate. First locking discs located in the first mounting holes and second locking discs located in the second mounting holes are coaxially arranged on the fixing plates. An oil delivery hole communicating witha hydraulic cavity is formed in a driving half axle. The first locking discs and the second locking discs are connected with the fixing plates through torsional springs correspondingly. The disengaging and engaging mechanism has the advantage that the rotating mode of the wheel can be selectively controlled.

Disengaging and engaging mechanism on automobile wheel

The invention discloses a stair climbing vehicle which comprises a stair climbing mechanism. The stair climbing mechanism comprises a transmission main shaft and a differential mechanism. The differential mechanism comprises an inner side three-supporting-arm star-shaped support, an outer side three-supporting-arm star-shaped support and a three-way support. The inner side three-supporting-arm star-shaped support is connected to the transmission main shaft, a center bevel gear is fixed to the center of the inner side three-supporting-arm star-shaped support, the three-way support is correspondingly fixed to the transmission main shaft, the inner end of the three-way support is rotationally connected with the center bevel gear, the upper end and the lower end of the three-way support are each connected with a planetary bevel gear, and the two planetary bevel gears are meshed with the center bevel gear and an outer side bevel gear. A chain wheel shaft is fixed to the outer end of the outer side bevel gear. The middles of the ends of three pairs of supporting arms of the inner side three-supporting-arm star-shaped support and the outer side three-supporting-arm star-shaped support of the chain wheel shaft are all provided with a chain wheel, the chain wheels are connected with the chain wheel shaft, axles are fixed to the chain wheels, and the axles are connected with climbing wheels through one-way bearings. The stair climbing vehicle is stable in stair climbing, safe, reliable and capable of greatly saving labor.

Yu Jian

Papers

Stair climbing vehicle