Hydraulic motor integrated in a vehicular wheel comprising a hub having a cylindrical symmetry supported by a articulated stub axle and defining a development axis of the hub and of the hydraulic motor, a motor body, rotatably integral with the articulated stub axle, having an annular shape and bein
Hydraulic motor integrated in a vehicular wheel comprising a hub having a cylindrical symmetry supported by a articulated stub axle and defining a development axis of the hub and of the hydraulic motor, a motor body, rotatably integral with the articulated stub axle, having an annular shape and being equipped with radial pistons, a ring nut integral with a hub and wherein said radial pistons act, an hydraulic oil distributor, wherein the hydraulic oil distributor is housed in the hub.
대표청구항▼
1. A hydraulic motor (1) integrated in a vehicular wheel comprising a hub (200) having a cylindrical symmetry supported by an articulated stub axle (100) and defining a development axis (X) of the hub and of the hydraulic motor,a motor body (12), rotatably integral with the articulated stub axle (10
1. A hydraulic motor (1) integrated in a vehicular wheel comprising a hub (200) having a cylindrical symmetry supported by an articulated stub axle (100) and defining a development axis (X) of the hub and of the hydraulic motor,a motor body (12), rotatably integral with the articulated stub axle (100), having an annular shape,a shaped ring (13) integral with a hub (200) and on which the hydraulic motor acts,a hydraulic oil distributor (15-16),wherein the hydraulic oil distributor (15-16) is housed in the hub (100),wherein the hydraulic oil distributor has an overall annular shape and is splined to the articulated stub axle (100). 2. The hydraulic motor according to claim 1, wherein said hydraulic oil distributor comprises a first part (16), rotatably fixed with respect to the articulated stub axle (100), and a second part (15), rotatably movable with respect to the articulated stub axle (100), wherein said first part (16) has an annular shape with an external surface tapered towards a free end (101) of the articulated stub axle (100). 3. The hydraulic motor according to claim 2, wherein said second part (15) has an annular shape with an internal surface complementary to the external surface of said first part, so that it is splined to said first part (16). 4. The hydraulic motor according to claim 3, wherein first hydraulic oil pipes (16.1) have a radial development and are in the first part of the distributor (16) and wherein second hydraulic oil pipes (15.1) are in the second part of the distributor (15) with at least a portion having an axial development. 5. The hydraulic motor according to claim 4, wherein thrust chambers (1516) are defined in correspondence of the complementary surfaces of the first and second parts (15, 16) of the hydraulic oil distributor (15-16). 6. The hydraulic motor according to claim 1, further comprising a first bearing (18) and a second bearing (20) placed between the articulated stub axle (100) and the hub (200), the first and second bearings being spaced between each other by means of a spacers (19, 202, 203), wherein said first bearing (18) is directly in contact with said hydraulic oil distributor (15-16), so that an axial displacement of the hydraulic oil distributor causes an axial displacement of the bearings (18, 20). 7. The hydraulic motor according to claim 6, wherein said first bearing (18) is directly in contact with said first part (15, 16) of the hydraulic oil distributor (15-16). 8. The hydraulic motor according to claim 6, further comprising a single ring nut (11) threading on a free end (101) of the articulated stub axle (100) blocking in a sequence blocked components including: the motor body (12), the hydraulic oil distributor (15-16), the first bearing (18), the spacer (19), the second bearing (20), so that said single ring nut allows both to assemble the engine and to adjust the position of said blocked components. 9. The hydraulic motor according to claim 1, wherein said hydraulic oil distributor (15-16) defines a seat for an annular gasket (17) confining hydraulic oil. 10. The hydraulic motor according to claim 9, wherein said seat is defined by the first part (16) of the distributor, rotatably fixed with respect to the articulated stub axle (100). 11. The hydraulic motor according to claim 5, wherein said articulated stub axle comprises at least a stop surface (103) for limiting the axial sliding of one of the motor body, the first part, the second part (11, 12, 15-16) splined to it. 12. A ground vehicle having a wheel wherein a hydraulic motor according to claim 1 is housed.
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이 특허에 인용된 특허 (19)
Hansell, Jeffrey C., Axial piston unit for integrated wheel hub.
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