摘要:
The invention, applied in trailed sowing machines, especially applicable to line-sowing, comprises a rim (1, 1a) which supports a tyre (2, 2a, 2b) provided with a peripheral crown (3, 3a, 3b, 3c, 3d), which drags against a disc (4). The peripheral crown (3, 3a, 3b, 3c, 3d) has inserted internally thereof a stiffening element (6) which reduces flexional deformation thereof; the rim (1, 1a) comprises a closed structure (8, 8a), facing towards an external part of the wheel, which is made of a sheet-steel single body, an external wall (9, 9a) of which is smooth.
摘要:
L'invention concerne une roue avec un dispositif en son sein qui permet de réutiliser à l'accélération l'énergie cinétique accumulée au freinage d'un objet roulant ou tournant. L'ensemble est constitué d'un corps de roue (1) monté rotatif autour d'une structure d'arbre (10) fixe de l'objet à freiner, d'une cage intérieure (12) rotative à sens unique selon le même axe de rotation que le corps de roue (1), qui vient déformer des accumulateurs élastiques (11) disposés entre elle même et ce corps de roue (1) lors des phases de freinage et d'accélération. Quand l'utilisateur sélectionne le freinage en bloquant la bague (6) par le moyen de blocage (9), il provoque la rotation des satellites (2) qui entraîne la cage (12). Les satellites (2), retenus progressivement dans leur rotation sur leurs axes (3) par la résistance des accumulateurs (11) sur la cage (12), provoquent le freinage de la roue (1). La sélection par l'utilisateur pour l'accélération libère la bague (6) et les satellites (2) par le moyen de déblocage (9), et le corps de roue (1) se trouve soumis à la traction par l'énergie accumulée dans les accumulateurs élastiques (11) ancrés sur la cage (12) momentanément fixe. En raison de cette disposition, la roue selon l'invention peut être utilisée pour des décélérations/accélérations de toute nature ainsi que pour des arrêts fermes.
摘要:
This invention relates to an arragnement for carrying out unlimited movement patterns in a horizontal plane comprising a chassis carried by at least three wheel means, at least one wheel means functioning as a driving and controlling wheel, and the arrangement comprising a computer-based, electronic controlling system which can be programmed for intended purpose, and which is adapted for use in vehicles. According to the invention the arrangement is characterized by the following features: the driving and controlling wheel (1, 3) is arranged partly to be able to rotate about a first axis (5), forming an angle which is greater than 0° but less than 90° with the horizontal line, partly to be able to rotate about a second, essentially vertical axis (6); each driving and controlling wheel (1, 3) is obliquely positioned, has essentially sub-spherical design and is driven by a motor of its own and is separately controlled; the driving and controlling wheel (1, 3) is provided with one or more pulse transducers (12a, b) which are arranged for giving off signals, reflecting one or more parameters, for instance the angle position and speed of the mentioned wheel.
摘要:
There is provided, in a preferred embodiment, a transportation vehicle for transporting an individual over ground having a surface that may be irregular. This embodiment has a support for supporting the subjet. A ground-contacting module, movably attached to the support, serves to suspend the subject in the support over the surface. The orientation of the ground-contacting module defines fore-aft and lateral planes intersecting one another at a vertical. The support and the ground-contacting module are components of an assembly. A motorized drive, mounted to the assembly and coupled to the ground-contacting module, causes locomotion of the assembly and the subject therewith over the surface. Finally, the ambodiment has a control loop, in which the motorized drive is included, for dynamically enhancing stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. The ground-contacting module may be realized as a pair of ground-contacting members, laterally disposed with respect to one another. The ground-contacting members may be wheels. Alternatively, each ground-contacting member may include a cluster of wheels. In another embodiment, each ground-contacting member includes a pair of axially adjacent and rotatably mounted arcuate element pairs. Related methods are also provided.
摘要:
L'invention concerne une roue destinée à se déplacer sur une surface d'appui déterminée. Cette roue (10) comporte une partie centrale (11) et une partie périphérique (12) concentrique à la partie centrale. Ces deux parties sont couplées entre elles par un roulement (19) comprenant un élément annulaire intérieur solidaire de la partie centrale et un élément annulaire extérieur solidaire de la partie périphérique. Cette partie périphérique comporte un organe de contact (20) avec la surface d'appui et la partie centrale est liée à la structure de base (15) du véhicule en un point d'ancrage décentré (21). La partie extérieure du roulement (19) porte un anneau de freinage (22) qui collabore avec des mâchoires de freinage (23) montées sur un bras (13) lié par un axe de pivotement (14) à la structure de base (15). Cette roue est particulièrement utilisable pour des voitures de tourisme, des motocyclettes, des remorques, etc.
摘要:
A drum-shaped hub (10) is attached to an end of an axle A of a tractor, and an outer ring (17) which retains a tire is screwed onto a drum portion of the hub. The outer ring (17) is located at a predetermined position on the hub drum portion and is then secured by fixing devices (10a, 15, 19). If the axle A of the tractor is rotated under the state in which the fixing devices are removed and the outer ring (17) is screwed onto the hub drum portion, the position of the outer ring (17) along the hub drum portion changes, thereby enabling an easy adjustment of the track width.
摘要:
A drum-shaped hub (10) is attached to an end of an axle A of a tractor, and an outer ring (17) which retains a tire is screwed onto a drum portion of the hub. The outer ring (17) is located at a predetermined position on the hub drum portion and is then secured by fixing devices (10a, 15, 19). If the axle A of the tractor is rotated under the state in which the fixing devices are removed and the outer ring (17) is screwed onto the hub drum portion, the position of the outer ring (17) along the hub drum portion changes, thereby enabling an easy adjustment of the track width.
摘要:
Provided are a traveling wheel (2), an autonomous operation apparatus (100), and a method for detecting a state of the traveling wheel (2), which relate to the technical field of autonomous operation apparatuses. The traveling wheel (2) has a wheel body (20). The wheel body (20) comprises a hub portion (202), a rim portion (204), at least one accommodating cavity (206) configured between the hub portion (202) and the rim portion (204), and at least one magnetic component (4) arranged in the accommodating cavity (206), the magnetic component (4) being configured to be capable of rolling over in the accommodating cavity (206) in at least one preset direction. The magnetic component (4) can cause a change in a magnetic field when rolling over in the accommodating cavity (206), so as to generate a detectable magnetic field change signal, and then, the rotation state of the traveling wheel (2) can be determined on the basis of the magnetic field change signal.