RU2495655C1 - Self-positioned dual wheel gear - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to transport engineering and may be used particularly to change a track in gear turn mainly actuated by running gear contrarotation of the vehicle borders, such as a wheelchair. The self-positioned dual wheel gear comprises a device for changing the gear track in the form of a pair of horizontally pivoted X-arms symmetrical about the longitudinal axis of the gear; the X-arms form a four-jaw antiparallel link mechanism with jaws coupled with axes equidistant in pairs along the pivoted X-arms in the median planes of the respective rims wheels with their self-actuated drive axes combined in a wheelspace box joint enabling the reverse rotation of axis ends in bearing assemblies of the respective wheels and the finger slide of the board wheel assembly in slide plate holes of the joint.

EFFECT: possibility to change the parallel alignment of the running gear.

1 cl, 3 dwg

Description

The invention relates to the field of transport engineering and can be used, in particular, to change the track when turning the chassis, turning mainly due to the counter-rotation of the chassis of the sides of the vehicle, such as wheelchairs.

Known chassis self-aligning / cm. author testimonial. No. 683944 (class B62D 55/08 of 02/04/1972 /, comprising a device for changing the chassis track in the form of a pair of crosswise rotary levers in the horizontal plane, located symmetrically relative to the longitudinal axis of the chassis. The prototype chassis allows you to increase and decrease the track gauge of the vehicle, leaving the chassis of the chassis sides parallel to each other in any mode of vehicle movement.

The main disadvantage of the chassis-prototype device is the inability to change the parallelism of the chassis of the chassis, which eliminates the decrease in resistance when the chassis rotates, turning mainly due to the counter-rotation of the chassis of the sides of the vehicle.

To eliminate the noted drawback in a two-wheeled self-aligning chassis containing a device for changing the gauge in a two-wheeled self-aligning chassis containing a device for changing the chassis gauge in the form of a pair of crosswise rotary levers in a horizontal plane symmetrically relative to the longitudinal axis of the chassis, the levers form a four-joint antiparallelogram with hinges, with axes equidistantly mounted in pairs on pivoting levers in the median planes corresponding their wheel rims, the autonomous drive shafts of the drives of which are combined in an interwheel articulated clutch, which allows the ends of the drive shafts to rotate with reverse in the bearing assemblies of the respective wheels and slide their fingers on the wheel assembly in the openings of the cogs of the coupling.

Figure 1 shows the chassis two-wheeled self-aligning, a General view from above; figure 2 shows a simplified chassis two-wheeled self-aligning in rotation, top view; figure 3 shows the unifying cross-axle articulated coupling in rotation, top view.

The two-wheeled self-aligning chassis contains two wheels 1 with rims 2 having protectors 3, and a device for changing the chassis track containing levers 4 crosswise rotary in the horizontal plane, located symmetrically relative to the longitudinal axis of the chassis. The levers 4 form a four-hinged antiparallelogram with hinges 5 connected to the axles 6, equidistantly mounted in pairs in the median planes of the respective rims of the 2 wheels 1, the autonomous drive shafts of which are combined in an interwheel articulated clutch that allows the ends of the drive shafts to rotate with a reverse in the bearing units fingers 9 on-board wheel assembly in the holes of the creepers 10 of the unifying clutch. In this case, the carrying platform and / or chair (not shown in Fig.), The chassis can be mounted at four points (see Fig. 3: T.A and C are the upper points of the housing of the bearing assemblies in the median planes of the respective wheel rims; B and D - creep points 10 of the unifying cross-axle articulated clutch).

A vehicle with the claimed two-wheeled self-aligning chassis, comprising a device for changing the track gauge in the form of a lever antiparallelogram and an interwheel articulated clutch combining autonomous drive shafts, in a rectilinear movement (forward or backward) from the transmission of individual torque drives (not shown) to the rims 2 wheels 1 moves in the traditional way, since the chassis of the sides is parallel to each other (see figure 1).

When cornering or turning a vehicle with the declared two-wheeled chassis self-aligning due to counter-rotation of the chassis, the lever antiparallelogram places the chassis of the sides (or the plane of the rims 2) at an angle (see Fig. 2) to each other, reducing resistance when turning or turning the vehicle , including a wheelchair for disabled people with the declared chassis.

Thus, according to the applicant, the proposed technical solution is new, has an inventive step and is industrially applicable.

Claims (1)

A two-wheeled self-aligning chassis containing a device for changing the chassis track in the form of a pair of cross-shaped rotary levers in the horizontal plane, located symmetrically relative to the longitudinal axis of the chassis, characterized in that the levers form a four-hinged antiparallelogram with hinges connected with axes mounted equidistantly in pairs on the rotary levers in the media the planes of the respective wheel rims, the autonomous shafts of the drives of which are combined in an interwheel articulated coupling, allowing The ends of the drive shafts rotate with reverse in the bearing assemblies of the respective wheels and slide with your fingers on the on-board wheel assembly in the holes of the cushions of the coupling.

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