摘要:
Bei einem hydromechanischen Getriebe mit einer Antriebswelle (1), einer Abtriebswelle (7), einem zwischen Antriebswelle (1) und Abtriebswelle (2) angeordneten mechanischen Verzweigungsgetriebe und einem mit dem Verzweigungsgetriebe zusammenwirkenden stufenlos verstellbaren hydrostatischen Getriebe (23, 33, 36) weist ein Trägerrahmen (36) des hydrostatischen Getriebes (23, 33, 36) eine quer zu den Wellen (1, 7) offene Aussparung (69) auf, durch die sich wenigstens eine der Wellen (1, 7) erstreckt.
摘要:
A hydrostatic assembly includes a pump having a yoke and an associated rotating group. The pump yoke has a bucket portion and an arm portion. At least one fluid passage extends through the pump yoke. The hydrostatic assembly also includes a motor having a yoke and an associated rotating group. The motor yoke also has a bucket portion and an arm portion. At least one fluid passage extends through the motor yoke. The arm portion of the pump yoke and the arm portion of the motor yoke have associated coupling portions for fluidly coupling the pump yoke to the motor yoke so that the at least one fluid passage in the pump yoke is in direct fluid communication with the at least one fluid passage in the motor yoke.
摘要:
A hydraulic module having two oblique-axis power units has a yoke (1) which is rotated by means of a peg (5), which is operatively connected to a piston (6), about a rotational axis (4) in such a way that the swept volume of the oblique-axis power units is adjusted.
摘要:
A vehicle drive-train includes a drive-motor having an output shaft and a transmission having an input shaft, an output shaft, a plurality of discrete forward gear ratios and a corresponding plurality of synchronizers. Each of the synchronizers is configured to mechanically synchronize rotation of the drive-motor output shaft with the transmission output shaft according to a value of a selected gear ratio, during shifting of the transmission to the selected gear ratio. The output shaft of the drive-motor and the input shaft of the transmission are coupled together such that, during normal operation of the drive-train, rotation of the output shaft of the drive-motor results in a proportionate and uninterrupted rotation of the input shaft of the transmission.
摘要:
A hydraulic drive system is provided with a front casing 50 and a rear ceasing 51. The front casing 50 is formed of a single member, and accommodates therein rotary members, which include a cylinder block 30A and the like, and a part of an output shaft 36 of a hydraulic motor 30 and rotary members, which include a cylinder block 31A and the like, and a part of an output shaft 32 of a hydraulic motor 31. The rear casing 51 is joined to the front casing 50, and has a ports plate 30C and a ports plate 31C arranged therein. The rear casing 51 has an oilway 52 communicating to a first port 30C1 of the ports plate 30C, an oilway 53 communicating to the oilway 52 and also communicating to a first port 31C1 of the ports plate 31C, an oilway 54 communicating to a second port 30C2 of the ports plate 30C, and an oilway 55 communicating to the oilway 54 and also communicating to a second port 31C2 of the ports plate 31C.
摘要:
The invention concerns a continously variable hydrostatic power-split transmission with at least two operating ranges between which it is switched by shift elements, with a first, mechanical, part (II) which includes a planetary differential gear (13) and with a second, hydrolastic, part (I) which includes two power-linked adjustable hydraulic units (H1, H2) which can be operated in both directions either as a pump or as a motor and which are coupled to the mechanical part (II). The ring gear (19) used to control the direction and speed of rotation of the gear box output shaft (12) in the individual operating ranges is coupled to a first hydraulic unit (H1). In the first operating range, the second hydraulic unit (H2) drives through a gear-shift element (K1, K2) to the output shaft (12). The first hydraulic unit (H1), which is coupled to the ring gear (19), works as a pump while the second (H2) works as a motor. The two hydraulic units (H1, H2) are designed as inclined-axis units. Their respective input and output shafts (27, 41) are parallel to each other. The invention is characterized in that both hydraulic units (H1, H2) are mounted inside the gearbox casing and next to each other so that their respective input and output shafts (27, 41) are oriented in opposite directions and staggered by at the most the length of a hydraulic unit (H1, H2) with respect to each other in the direction of the axes of symmetry of the hydraulic-unit input and output shafts of the hydraulic units (H1, H2) and the axes of the cylinders of the hydraulic units lie in the same plane and at least one additional spur-gear stage is fitted between the planetary differential gear (13) and the second hydraulic unit (H2).
摘要:
A hydraulic system (1A-1E) according to the present invention includes a rotational shaft (5), a hydraulic rotor (6) supported by the rotational shaft (5) so as to be incapable of relative rotation, an output adjuster (7) varying a volume of the hydraulic rotor (6), a control shaft (40) tilting the output adjuster (7), a drive motor (110) operating the control shaft (40) around the axis, a drive shaft(120) disposed on a reference axis (X) same as the axis of the control shaft (40) and operably driven around the axis by the drive motor (110), a deceleration mechanism (200) decelerating rotary power input from the drive shaft (110) and outputs the decelerated rotary power toward the control shaft (40), and a housing (50) accommodating the hydraulic rotor (6), the output adjuster (7), and the deceleration mechanism (200), wherein the deceleration mechanism (200) has a hypocycloid-type deceleration mechanism (300) disposed on the reference axis (X).
摘要:
The present invention is directed toward a transmission comprising: - a transmission case; - a first planetary gear mechanism arranged in the transmission case and comprising a sun gear, a planet gear set, and a ring gear; - a transmission input shaft connected to the first planetary gear mechanism and connectable to an external power source for driving the planetary gear mechanism; - at least one transmission output shaft connected to the first planetary gear mechanism and connectable to an external device for driving said external device; - at least one first hydrostat arranged externally on the transmission case and connected to the first planetary gear mechanism via a pump input shaft and configured to act as a unidirectional variable displacement pump driven by the planetary gear mechanism; - at least one second hydrostat arranged externally on the transmission case, driven by the first hydrostat, and configured to act as a unidirectional motor and connected to the planetary gear mechanism via a motor output shaft for driving the first planetary gear mechanism;
wherein each of said transmission input shaft, said first hydrostat and said second hydrostat is connected to a respective one of said sun gear, said planet gear set, and said ring gear; wherein said transmission output shaft is connected to the one of said sun gear, said planet gear set, and said ring gear to which the second hydrostat is connected; wherein the first hydrostat and the second hydrostat are separate devices each having its own case arranged externally on the transmission case, and are connected via a hydraulic circuit that is configured for unidirectional flow of hydraulic oil between the first hydrostat and the second hydrostat.