摘要:
To improve workability and sealing performance of a coolant when a plurality of nuts in a ball screw are brought into contact with one another, the plurality of nuts being coupled to one another, assembled to one threaded shaft and cooled by flowing the coolant through through-holes formed in the plurality of nuts in axial directions of the plurality of nuts. The ball screw (1) includes counterbores (4, 5) of the through-holes (3) formed on opposing end faces of both of adjoining nuts (21, 22), and a ring-shaped sealing member (6) inserted thereto. The counterbores (4, 5) are formed such that a depth (D2) of one counterbore is larger than a length of the sealing member (6) (D2 > L), and the a depth (D1) of the other counterbore is smaller than the length of the sealing member (6) (D1
摘要:
Transmission (2), in particular for a water craft (4), having at least one first shaft (6) which is arranged rotatably in a first bearing (10), can be connected or is connected to an energy device (8), in particular a hydraulic machine, internal combustion engine or electric machine, which can be operated as a motor or as a generator, and has a first clutch section (12) at one end, having at least one second shaft (14) which is arranged rotatably in a second bearing (16), can be connected or is connected to a centrifugal machine (18), and has a second clutch section (20) at one end, which second clutch section (20) can be arranged or is arranged with at least one first clutch section (12) of the at least one first shaft (6) in such a way that a torque can be transmitted from the first shaft (6) to the second shaft (14) and/or vice versa, having a housing (22) which supports at least the first bearing (10) of the first shaft (6) and/or at least the second bearing (16) of the second shaft (14) and surrounds the clutch sections (12, 20) at least partially, and having a cooling and/or lubricating device (28) for feeding coolant and/or lubricant (26) to the clutch sections (12, 20) and/or to the bearings (10, 16) and/or to the first shaft (6) and/or to the second shaft and/or to the energy device (8) and for discharging it again. It is characterized in that the first shaft (6) and/or the second shaft and/or the first clutch section (12) of the first shaft (6) and/or the second clutch section (20) of the second shaft (14) and/or the first bearing (10) and/or the second bearing (16) and/or the energy device (8) are formed in each case at least in one section from at least one corrosion-resistant material or comprise a material of this type and/or have at least one coating which protects against corrosion in each case at least in one section.
摘要:
A control device is produced for enabling a locked-up state at a low speed range and preventing thereby-caused insufficiency in the lubricating oil supply amount to a transmission. The control device controls the lubricating oil supply amount to a transmission in a construction machine including a torque converter with a lock-up clutch. The control device includes a clutch state determining section, a lubricating oil amount detecting section and a lock-up clutch controlling section. The clutch state determining section determines whether or not the lock-up clutch (7) is being coupled. The lubricating oil amount detecting section detects whether or not the lubricating oil supply amount to the transmission (2) is short of a preliminarily set supply amount. The lock-up clutch controlling section decouples the lock-up clutch (7) when the lock-up clutch (7) is being coupled and the lubricating oil supply amount is short of the preliminarily set supply amount.
摘要:
In a power unit comprising an engine (13) and an HST (24) which are formed into an integral body, a lubricating oil for use in the engine and an operating oil of the HST (24) are commonized. After being cooled, the common oil is fed from the side of the engine (13) to the HST (24). Such arrangement suppresses the drop in viscosity of the common oil and prevents the drop in efficiency and the occurrence of seizing on the side of the HST (24).
摘要:
Gegenstand der Erfindung ist ein Kugelgewindetrieb für Werkzeugmaschinen, mit einer drehbar gelagerten hohlen Gewindespindel (1), mit einem Antriebsaggregat (3) für die Gewindespindel (1), mit einer auf der Gewindespindel längs beweglich angeordneten Mutter (4) und mit einem Kühlsystem der Gewindespindel (1), das einen Zulaufanschluss (12) und einen Ablaufanschluss (13) für eine im Inneren der hohlen Gewindespindel fließende Kühlflüssigkeit aufweist. Zur Erzielung einer verbesserten Kühlleistung bei geringem technischem Aufwand sind im Innenraum der hohlen Gewindespindel (1) ein Zulaufkanal (15) und ein mit diesem kommunizierender Rücklaufkanal (16) angeordnet, und der Zulaufanschluss (12) und der Ablaufanschluss (13) sind am gleichen Ende der Gewindespindel (1) angeordnet.
摘要:
The present invention is directed to an apparatus to regulate and control the temperature of a differential axle assembly. A heat pipe (203) is inserted through the axle housing with a portion submersed in axle lubricant (213). Cooling fins (211a,212a) are preferably disposed on the heat pipe both in the submersed region of the heat pipe (203) and a portion external the housing. The heat pipe is preferably secured to and substantially accommodated by a removable cover plate (101) which is in turn secured to the housing (201). The heat pipe includes an evaporative working fluid to promote heat transfer between the lubricant and external environment.
摘要:
The invention relates to a drive heat-exchanger unit (1) characterised by a drive (2) with an input (E) and at least one output (A) and a heat exchanger (3), which is allocated to the output side of the drive (2) and is connected to said drive at least indirectly via conduits (7, 8). The invention is also characterised by the following features: a channel or channels (4.1, 4.2) conducting service fluid, which is/are integrated in the housing (6) of the drive (2) and run(s) at least over part of the axial extension of the housing (6) to the end face of the drive (2) on the output side; a fixing device (5) for securing the heat exchanger (3) to the end face of the housing (6) of the drive (2) on the output side; the connection conduits (7, 8) that couple the service-fluid channel or channels in the housing (2) to the heat exchanger (3) are integrated in the fixing device (5); complementary connections of a standard type and size, which are located on the fixing device and the drive housing (6) for conducting the service fluid and for securing the fixing device (5).