Abstract:
The present invention is related to a track unit for a vehicle, such as an agricultural harvesting combine. The track unit according to a first embodiment of the invention comprises one or more bogies arranged between front and rear guide wheels. The bogies are provided with wheel pairs that are rotatably arranged about a longitudinal axis of the bogie itself, and are thereby capable of adapting individually to transversal oscillations caused by the terrain. Preferably, the bogies are furthermore equipped to adapt to longitudinal oscillations as well, by the longitudinal portion of the bogie being rotatable about a transversal axis. According to a second embodiment, the track unit of the invention is equipped with a cutter, non-rotatably mounted on one or both outer faces of the rear guide wheel, in a position where said wheel is in direct contact with the track, the cutter being configured to cut crop material that is transported upwards between the rear guide wheel and the track when the track unit moves forward.
Abstract:
The present teachings relate generally to a small unmanned ground vehicle. The present teachings relate more particularly to a small unmanned ground vehicle weighing less than about five pounds, and which is designed to absorb an impact from being dropped or thrown and climb stairs of a conventional size, to perform a variety of behaviors such as stair climbing, self righting, and gap crossing, and to be sealed to prohibit ingress of liquids and debris.
Abstract:
A cartridge (18) for a track chain (10) is disclosed. The cartridge includes a track pin (24). The cartridge also includes a rotatable bushing (26) and a rotatable bearing (28) located on the track pin. The cartridge further includes a first thrust bearing (112) located on the track pin between the bearing and the bushing. The first thrust bearing is configured to contact the rotatable bearing and configured to contact the rotatable bushing. The first thrust bearing is configured to bear thrust loads and not radial loads. The cartridge may further include a collar (32) located at an end of the track pin. The cartridge includes a second thrust bearing (114) located between the bearing and the collar. The second thrust bearing is configured to contact the rotatable bearing and configured to contact the collar. The second thrust bearing is configured to bear thrust loads and not radial loads.
Abstract:
The present teachings relate generally to a small unmanned ground vehicle. The present teachings relate more particularly to a small unmanned ground vehicle weighing less than about five pounds, and which is designed to absorb an impact from being dropped or thrown and climb stairs of a conventional size, to perform a variety of behaviors such as stair climbing, self righting, and gap crossing, and to be sealed to prohibit ingress of liquids and debris.
Abstract:
A sealing device and a crawler with said sealing device are disclosed. The sealing device is used to create a seal between a first part (7) and a second part (6) of the crawler, in which the second part (6) can rotate with respect to the first part (7). The sealing device includes an annual spacing sealer (2), the annual spacing sealer (2) is used to space the first part (7) and the second part (6) and seal the corresponding end face of the second part (6) by its end face, and an annual elastomer (1) used to bias the spacing sealer (2) toward the second part (6). The crawler includes said sealing device.
Abstract:
A track joint seal system comprises a pin (43) having, at each end, a first track link (41) rotatably coupled to the pin by means of interposition of a bushing (49) and an end element (42) coupled to the end of the pin (43); the end element (42) comprises an annular seat (57) bearing, housed, a seal group (56) cooperating with the bushing (49) to make the sealing of the. joint; the bushing (49) is provided at the end with an annular head seat (58), provided to house a bushing insert (53) provided with an abutment surface (48) destined to be in contact with a seal portion (47) of the seal group (56).
Abstract:
A seal (21) comprising a link side lip part (22) abutting against the outer link part (9) of a cover belt (7), a bush side lip part (23) abutting against a bush (11), and an intermediate linking part (24) for linking the lip parts (22, 23). A relation (T2≅ T2'> T1≅ T1') is set, where (T1, T2, T1', T2') are the thickness dimensions at the link side lip part (22), the bush side lip part (23), a link side linking part (24A) and a bush side linking part (24B). Maximum outside diameter part (24C) side of the intermediate linking part (24) is located on the radial outside of the radial intermediate position of the bush side lip part (23). The bush side lip part (23) is pushed entirely and uniformly toward the end face (11A) of the bush (11) by the intermediate linking part (24).
Abstract:
A track bushing (10) for an endless track of a track-type machine includes a cylindrical tubular shape having a first end (20) and a second end (30) and a longitudinal axis. The track bushing (10) further includes a first end bearing surface (22) that is adjacent to the first end (20) and a second end bearing surface (32) that is adjacent to the second end (30). A circumferential groove (12, 13) is formed in at least one of the first end bearing surface (22) and the second end bearing surface (32). The circumferential groove (12, 13) has a depth along the longitudinal axis. An abrasion and corrosion resistant material (14, 15) is arc welded within the circumferential groove (12, 13) to the bushing (10) at a weld joint.