阅读说明：本技术 功率传输设备和在传动系中运行功率传输设备以便转速可变地驱动做功机器的方法 (Power transmission device and method for operating a power transmission device in a drive train in order to drive a work machine with a variable rotational speed ) 是由 H.格拉夫 于 2018-06-13 设计创作，主要内容包括：本发明涉及一种功率传输设备(1),其具有用于与能以恒定转速运行的驱动机器相连的输入端(E)和至少一个用于与能以可变转速运行的做功机器(9)相连的输出端(A),所述功率传输设备包括逆流转换器(2),至少一个行星轮传动装置(4),所述行星轮传动装置作为行星轮传动装置(4)的元件包括齿圈(5)、太阳轮(6)以及行星架(8),所述行星架具有多个行星轮(7),其中,所述输入端(E)与所述逆流转换器(2)的泵轮(P)和与行星轮传动装置(4)的第一元件至少间接地连接,所述涡轮(T)与行星轮传动装置(4)的第二元件至少间接地连接,并且所述行星轮传动装置(4)的第三元件至少间接地与所述输出端(A)连接或者构成输出端。本发明的特征在于配设有可切换的调节联接器(20,16),其用于在逆流转换器(2)清空时在第一转速范围中在功率传输设备(1)的输入端(E)和输出端(A)之间传输功率,并且配设有用于在该第一转速范围内至少间接支承和/或固定行星轮传动装置(4)的第二元件的装置(25),尤其是至少间接支承和/或固定位于逆流转换器(2)的涡轮(T)和行星轮传动装置(4)的第二元件之间的连接部(28)的装置(25)。(The invention relates to power transmission device (1) having an input (E) for connection to a drive machine which can be operated at a constant rotational speed and having at least outputs (A) for connection to a work machine (9) which can be operated at a variable rotational speed, comprising a reversing converter (2), at least planetary gear sets (4) which, as elements of the planetary gear sets (4), comprise a ring gear (5), a sun gear (6) and a planet carrier (8) having a plurality of planet gears (7), wherein the input (E) is at least indirectly connected to a pump wheel (P) of the reversing converter (2) and to a second element of the planetary gear set (4), the turbine (T) is at least indirectly connected to a second element of the planetary gear set (4), and a third element of the planetary gear set (4) is at least indirectly connected to the output (A) or forms the output, and is characterized in that a switchable actuating coupling (20,16) is provided for the indirect power transmission between the second element (57) of the planetary gear set (2) and the output (82) and/or the output (25) of the planetary gear set in the power transmission device (4) in the range in which the power transmission device is at least one of the reverse converter (25) and/or the fixed rotational speed transmission device (57).)

Power transmission device (1) of the kind , having an input (E) for connection to a drive machine operable at a constant rotational speed and at least outputs (a) for connection to a work machine (9) operable at a variable rotational speed, the power transmission device comprising:

-a hydrodynamic speed/torque converter designed as a counterflow converter (2) with at least pump impellers (P), at least turbine impellers (T) and at least stator wheels (L), which form a working chamber that can be filled with a working medium;

-a superposition gearing (3) having at least planetary gear transmissions (4) comprising a ring gear (5) as an element of the planetary gear transmission, a sun gear (6) and a planet carrier (8) having a plurality of planetary gears (7),

wherein the input (E) of the power transmission device (1) is connected at least indirectly, preferably directly, to the pump wheel (P) of the counterflow converter (2) and to the -th element of the planetary gear (4), the turbine (T) of the counterflow converter (2) is connected at least indirectly, preferably directly, to the second element of the planetary gear (4), and the third element of the planetary gear (4) is connected at least indirectly to the output (A) of the power transmission device (1) or forms an output;

the method is characterized in that:

-the counterflow converter (2) can be emptied;

-the power transmission device (1) has a switchable regulating coupling (20,16) for transmitting power between an input (E) and an output (A) of the power transmission device (1) in a th speed range when emptying the counterflow converter (2),

-the power transmission device (1) has means (25) for at least indirectly supporting and/or fixing the second element of the planetary gear (4), in particular means (25) for at least indirectly supporting and/or fixing a connection (28) between the turbine (T) of the counterflow converter (2) and the second element of the planetary gear (4), in the th rotational speed range.

2. A power transmission device (1) according to claim 1, characterized in that the reverse flow converter (2), the superposition transmission (3) and the switchable adjusting coupling (20,16) are arranged coaxially with respect to each other.

3. A power transmission apparatus (1) as claimed in claim 1 or 2, characterized in that the reversing converter (2) is arranged spatially in front of the superposition transmission (3) as viewed in the axial direction between the input (E) and the output (a) of the power transmission apparatus (1), and the switchable adjusting coupling (20,16) is arranged on the side of the reversing converter (2) facing away from the superposition transmission (3), wherein the adjusting coupling (20) is provided with a direct transmission (19) for bridging the adjusting coupling in the event of a connection being established between the input (E) and the pump wheel (P) of the reversing converter (2).

4. A power transmission device (1) as claimed in claim 1 or 2, characterized in that the reversing flow converter (2) is arranged spatially in front of the superposition transmission (3) as viewed in the axial direction between the input (E) and the output (a) of the power transmission device (1), and the adjusting coupling (20,16) is arranged on the side of the superposition transmission (3) facing away from the reversing flow converter (2), wherein the input element (K1) of the adjusting coupling (20,16) is connected to the third element of the superposition transmission (3), and the adjusting coupling (20) is provided with a direct transmission (19) for bridging the adjusting coupling in the event of a connection being established between the third element of the superposition transmission (3) and the output (a).

5. A power transmission device (1) as claimed in claim 4, characterized in that the output member (K2) of the adjusting coupling (20,16) is connected to the output of the power transmission device (1) via a rotational speed/torque converter (22), in particular a spur gear set.

6. the power transmission device (1) according to claims 2 to 5, characterized in that the direct transmission (19) is formed in a functionally centralized manner and by the adjusting couplings (20, 16).

7., the power transmission device (1) according to claims 1 to 6, characterized in that the adjusting coupling is designed as an adjustable diaphragm clutch.

8., the power transmission device (1) according to claims 1 to 6, characterized in that the adjusting coupling (20) is designed as an adjustable hydraulic coupling (16), in particular a hydraulic coupling with a filling control device.

9., the power transmission device (1) according to claims 1 to 8, characterized in that the means (25) for supporting and/or fixing the second element of the planetary gear (4), in particular the means (25) for supporting and/or fixing the connection (28) between the turbine (T) of the counterflow converter (2) and the superposition gear (3), are designed as a brake, in particular as a hydrodynamic retarder (31), wherein the rotor (R) is connected directly to the turbine (T) of the counterflow converter (2) or to the connection (28) between the turbine (T) and the second element of the planetary gear (4), and the stator (S) is connected to a component fixed to the housing or to the element of the planetary gear (4).

10. power transmission device (1) according to any of claims 1 to 8, characterized in that the means (25) for supporting and/or fixing the second element of the planetary gear (4), in particular the means (25) for supporting and/or fixing the connection (28) between the turbine (T) of the counterflow converter (2) and the superposition gear (3), are designed as a coupling means (32) which comprises at least two coupling parts (K1, K2) which can be brought into an operative connection with one another at least indirectly, wherein the -th coupling part 32.1 is connected directly to the turbine (T) of the counterflow converter (2) or to the connection (28) between the turbine (T) and the second element of the planetary gear (4), and the second coupling part (K2) is connected to a component fixed to the housing or to the element of the planetary gear (4).

11. the power transmission device (1) according to claims 1 to 10, characterized in that the superposition gearing (3) comprises only planetary gearings (4), and in that the th element of the planetary gearings (4) is constructed from a planet carrier (8), the second element of the planetary gearings (4) is constructed from a sun wheel (6), and the third element of the planetary gearings (4) is constructed from a ring wheel (5).

12., the power transmission device (1) according to claims 1 to 11, characterized in that the counterflow converter (2) is designed as an adjusting converter comprising adjustable vanes or adjustable vane segments on at least of a plurality of impellers, i.e. pump, turbine and/or stator wheels.

13, drive train (10) having a drive machine (9) which can be driven at a constant rotational speed and a power transmission device (1) according to of claims 1 to 12 for driving a work machine (11) at a variable rotational speed.

14, method for operating a power transmission device (1) according to of claims 1 to 12, having the following method steps:

starting the drive machine from the standstill with evacuation of the hydraulic speed/torque converter until a predetermined value is reached which at least indirectly characterizes the operating mode of the drive machine, in particular a target speed of the drive machine,

at the same time as or offset in time with reaching a predetermined value, in particular a nominal rotational speed, which at least indirectly characterizes the operating mode of the drive machine, the control coupling, in particular the hydrodynamic coupling, is switched on or activated and a second element of the planetary gear of the superposition gear, in particular the sun gear, is supported or fixed,

-controlling the transmission characteristics of the regulating coupling over a preset th speed range,

when the preset speed range is exhausted, the control coupling is bridged and the devices for mounting and/or fixing are deactivated and the hydrodynamic speed/torque converter is filled and drives the turbine,

the third element of the planetary gear set is driven at a rotational speed which is determined by the superposition of the rotational speed of the th element of the planetary gear set connected to the drive machine and the rotational speed of the second element of the planetary gear set connected at least indirectly to the turbine, said rotational speeds being defined by the planetary gear set.

-controlling the transfer characteristic of the counterflow converter.