阅读说明：本技术 传感器单元和具有至少一个这种传感器单元的传动装置 (Sensor unit and transmission device with at least one such sensor unit ) 是由 茱莉亚·卡米那迪 里卡尔多·范·马年 于 2020-08-28 设计创作，主要内容包括：传感器单元与具有至少一个这种传感器单元的传动装置。本发明涉及一种传感器单元(1),其包括不同传感器装置的传感器构件以及电路板(9)的至少一个电源组件和信号传输组件,所述电路板具有并连接到所述传感器构件,其特征在于,传感器单元(1)具有容纳传感器构件以及至少一个电路板(9)的环形基体(4)。此外本发明还涉及具有这种传感器单元(1)的传动装置(3)。另外本发明还涉及具有这种传动装置(3)的传动系(26)以及具有这种传动装置(3)的工业应用(28)。(Sensor unit and transmission with at least one such sensor unit. The invention relates to a sensor unit (1) comprising sensor components of different sensor devices and at least one power supply assembly and a signal transmission assembly of a circuit board (9) having and being connected to the sensor components, characterized in that the sensor unit (1) has an annular base body (4) accommodating the sensor components and the at least one circuit board (9). The invention further relates to a transmission (3) having such a sensor unit (1). The invention further relates to a drive train (26) having such a drive (3) and to an industrial application (28) having such a drive (3).)

1. A sensor unit (1) comprising sensor components of different sensor devices and at least one circuit board (9), the circuit board having a power supply and signal transmission assembly for the sensor member, the sensor member being connected to the circuit board, characterized in that the sensor unit (1) has an annular base body (4) which accommodates the sensor component and at least one of the circuit boards (9), wherein the base body (4) of the sensor unit (1) is arranged between a transmission housing cover (14) and a transmission bearing (2) arranged on a transmission shaft (12), wherein, radially inside the base body (4), a measurement volume collector (19) and a signal transmitter (20) are arranged as sensor components of a torque sensor device at the drive shaft (12).

2. Sensor unit (1) according to claim 1, characterized in that the different sensor means have at least one temperature sensor means and/or at least one torque sensor means and/or at least one vibration sensor means.

3. Sensor unit (1) according to claim 1 or 2, characterized in that a separate interface (10) accessible from the outside is provided on the base body (4) for connecting external power and signal transmission lines (17).

4. Sensor unit (1) according to claim 3, characterized in that the measurement volume pickup (6) of the at least one temperature sensor device and the measurement volume pickup (7) of the at least one vibration sensor device are located as sensor components at a first end side (5) of the base body (4), and the interfaces (10) for power supply and signal transmission are located at an opposite second end side (11) of the base body (4).

5. Sensor unit (1) according to one of the preceding claims 2 to 4, characterized in that a signal receiver (8), in particular of annular design, is located as a sensor component of a torque sensor device at the inner circumference of the base body (4).

6. Sensor unit (1) according to one of the preceding claims, characterized in that the circuit board (9) is located in the interior of the base body (4).

7. Sensor unit (1) according to one of the preceding claims, characterized in that the base body (4) is made of an oil-, temperature-and pressure-resistant material, in particular of plastic, preferably of polyamide.

8. Sensor unit (1) according to one of the preceding claims, characterized in that the base body (4) is made in an additive manner.

9. A transmission (3) having at least one sensor unit (1) according to any one of the preceding claims.

10. Transmission (3) according to claim 9, characterized in that the base body (4) of the sensor unit (1) is arranged between the transmission housing cover (14) and the transmission bearing (2) arranged on the transmission shaft (12) and against the transmission assembly.

11. A drive train (26) comprising a rotor shaft (24) connected in a torque-transmitting manner to a transmission (3) which in turn is connected in a torque-transmitting manner to a generator (25), characterized in that the transmission (3) is designed according to claim 9 or 10.

12. A wind power plant (22) comprising a rotor (23) mounted on a nacelle (27), wherein a drive train (26) is arranged in the nacelle (27), which drive train is connected with the rotor (23) in a torque-transmitting manner, characterized in that the drive train (26) is designed according to claim 11.

13. Industrial application (28) comprising a drive (29) which is coupled in a torque-transmitting manner with a transmission (3) which is connected in a torque-transmitting manner with a mechanical application (36), characterized in that the transmission (3) is designed according to claim 9 or 10.

Technical Field

The invention relates to a sensor unit comprising sensor components of different sensor devices and at least one circuit board with a power supply and signal transmission assembly, which circuit board is connected to the sensor components. The invention also relates to a transmission device having such a sensor unit. The invention also relates to a drive train having such a transmission and to an industrial application having such a transmission.

Background

It is desirable to design mechanical systems, for example in the form of transmissions, with IOT capabilities (IOT: Internet of Things). For this purpose, sensor devices are added to receive measured variables such as torque, rotational speed, vibration and temperature. In the case of actuators, the measurement pickups of the sensor devices are mounted at different locations on and in the actuator, and then they are connected to one or more circuit boards having the power and signal transmission components necessary for the respective sensors. These circuit boards are in turn connected to at least one external power supply and signal evaluation device. This type of wiring entails a high expenditure of time and costs.

Disclosure of Invention

Starting from the prior art, it is an object of the present invention to provide a sensor unit with an alternative construction.

In order to achieve this object, the invention provides a sensor unit which is characterized in that it has an annular base body which accommodates a sensor component and at least one circuit board. Since the sensor components of the various sensor devices and the printed circuit board with the power supply and signal transmission components for these sensor components are mounted in advance on separate annular substrates and are connected to one another in a suitable manner, the sensor unit according to the invention can be mounted quickly and simply in a mechanical system, since only the substrates have to be inserted. Accordingly, the sensor unit according to the invention is installed with low expenditure of time and cost.

According to one embodiment of the invention, the different sensor devices have at least one temperature sensor device and/or at least one torque sensor device and/or at least one vibration sensor device. Thus, a single sensor unit can be used to collect all data, in particular all data necessary for monitoring the transmission.

Preferably, a separate externally accessible interface for connecting an external power supply and signal transmission lines is provided on the base body. In this way, the operation of the sensor unit according to the invention with regard to the connection of the sensor unit to an external power supply and to a signal evaluation device is significantly improved.

Advantageously, the measurement volume collector of the at least one temperature sensor device and the measurement volume collector of the at least one torque sensor device are located as sensor components at a first end side of the base body, and the power supply and signal transmission interface are located at a second, opposite end side of the base body. Accordingly, when the base body is mounted, the measurement variables recorded by the temperature sensor device and the vibration sensor device can be oriented in the direction of the component to be monitored, wherein they are, for example, transmission bearings, while the connection of the power supply and signal transmission lines is made at the other end of the base body.

As a sensor component of the torque sensor device, a signal receiver, in particular of annular design (for example in the form of a measuring band or the like), is preferably located at the inner circumference of the base body. The associated measurement pickup and the associated signal transmitter of the torque sensor device are located on the drive shaft radially inside the base body in the case of a transmission.

According to one embodiment of the invention, the circuit board is located in the interior of the base body. This arrangement of the circuit board has the advantage that the circuit board is protected from external influences. Similarly, this applies to the wiring that is present between the sensor member and the circuit board.

The base body is preferably made of an oil-, temperature-and pressure-resistant material, in particular a plastic, preferably a polyamide. Accordingly, the base body can withstand the conditions prevailing in the transmission or mechanical system without problems. The degree of oil resistance, temperature resistance and pressure resistance of the material can be determined in each case depending on the operating conditions of the mechanical system in which the sensor unit is integrated.

According to one embodiment of the invention, the base body is produced in an additive manner, which results in a high flexibility in the production of the base body and the sensor unit. Alternatively, other manufacturing techniques can in principle also be used to produce the base body.

The invention also provides a transmission device having at least one sensor unit according to the invention.

The base body of the sensor unit is preferably arranged between the transmission housing cover and the transmission bearing arranged on the transmission shaft and can bear against these transmission components, in particular if these transmission components are to be considered in an important manner.

Preferably, as a sensor component of the torque sensor device, a measurement volume collector and a signal transmitter are arranged on the drive shaft radially inside the base body, which signal transmitter transmits measurement data detected by the measurement volume collector to a signal receiver arranged at the inner circumference of the base body.

The invention also provides a drive train comprising a rotor shaft which is connected to the drive in a torque-transmitting manner and which is in turn connected to the drive in a torque-transmitting manner, characterized in that the drive is designed as a drive according to the invention.

The invention also provides a wind power plant comprising a rotor which is mounted at a nacelle, wherein a drive train which is connected to the rotor in a torque-transmitting manner is arranged in the nacelle, wherein the drive train is designed as a drive train according to the invention.

The invention also provides an industrial application comprising a drive mechanism which is connected in a torque-transmitting manner to a transmission which is coupled in a torque-transmitting manner to a mechanical application, wherein the transmission is designed as a transmission according to the invention.

Drawings

Other features and advantages of the present invention will be apparent from the following description taken in conjunction with the accompanying drawings. Shown here are:

FIG. 1 is a perspective front view of a sensor unit according to one embodiment of the present invention;

FIG. 2 is a perspective rear view of the sensor unit shown in FIG. 1;

FIG. 3 is a partial view of a transmission having the sensor unit shown in FIGS. 1 and 2;

FIG. 4 is a partial side view of an embodiment of a wind power plant according to the invention;

FIG. 5 is a schematic view of an embodiment of a powertrain according to the present invention; and

FIG. 6 is a schematic view of one embodiment of an industrial application according to the present invention.

Detailed Description

The sensor unit 1 shown in fig. 1 and 2 is used for monitoring a transmission 3 or a component thereof, in this case a transmission bearing 2, as will be explained in more detail below with reference to fig. 3. The sensor unit 1 comprises an annular base body 4 which is preferably manufactured in an additive manner from an oil-and temperature-and pressure-resistant material, such as polyamide. The measurement volume collector 6 of the temperature sensor device and the measurement volume collector 7 of the vibration sensor device are located at the end face 5 of the base body 4 or are embedded in the end face 5. The measurement volume collector 6 of the temperature sensor device can be, for example, a thermocouple. The measurement quantity collector 7 used as a vibration sensor device can be, for example, a MEMS (Micro-Electro-Mechanical System) sensor. As a sensor component of the torque sensor device, a signal receiver 8 is located on the inner circumference of the base body 4, which is in this case in the form of a signal receiver of annular design formed by a measuring band. The measurement volume collectors 6 and 7 and the signal receiver 8 are connected to a circuit board 9, which is located in the interior of the base body 4 and has the necessary power supply and signal transmission components for the sensor elements. The sensor unit 1 also has a separate, externally accessible interface 10 which is connected to the circuit board 9 by wires (verdrahten) and is used for connecting external power supplies and signal transmission components. The interface 10 is located on an end face 11 of the base body 4 opposite the end face 5.

Fig. 3 shows an exemplary region of the transmission 3 with the transmission housing 21, in which the transmission shaft 12 is rotatably held using the transmission bearings 2, wherein only one of the transmission bearings 2 is shown in fig. 3. The sensor unit 1 shown in fig. 1 and 2 is mounted between the drive bearing 2 and a drive housing cover 14 sealed by a seal 13 against the drive shaft 12 in such a way that the base body 4 bears fixedly on the end side against the two components and the measurement pickups 6 and 7 of the temperature sensor device and the vibration sensor device are directed at the drive bearing 2 to be monitored. In the region of the interface 10, the transmission housing cover is provided with a recess 15 and a through-opening 16 which is axially aligned with the interface 10, in order to obtain a space for connecting and passing through a power and signal transmission line 17, shown by a dashed line in fig. 3, by means of which the sensor unit 1 is connected to a power and signal evaluation device 18. Radially inside the base body 4, a measurement variable pickup 19 and a signal transmitter 20 are arranged as further sensor components of the torque sensor arrangement at the drive shaft 12, which are embedded in the drive shaft 12.

The main advantage is that, with little expenditure of time and cost, the measurement volume collectors 6 and 7 and the signal receiver 8 of the sensor assembly, for example of different sensor devices, can be installed in the mechanical system, since they are arranged in a single base body 4. A further advantage is that the sensor unit 1, thanks to its interface 10, can also be connected quickly and easily to an external power supply and signal evaluation device 18.

Fig. 4 shows a partial perspective view of an embodiment of a wind power plant 22. The wind power plant 22 comprises a rotor 23 which can be rotated by the wind. The rotor 23 is connected in a torque-transmitting manner via a rotor shaft 24 to the transmission 3 according to the invention, which is embodied as a planetary gearbox. The transmission 3 is in turn connected to a generator 25 in a torque-transmitting manner. The rotor shaft 24, the transmission 3 and the generator 25 belong to a drive train 26 accommodated in a nacelle 27 of the wind power plant 22. The generator 25 has two, three or four pole pairs.

Fig. 5 schematically shows the structure of a further embodiment of a drive train 26 according to the invention, which can be used for a wind power plant 22 not shown in detail or for an industrial application 28 not shown in detail. The drive train 26 comprises a transmission 3 according to the invention, which is embodied as a planetary gearbox and which is connected on the inlet side to a drive 29 or to the rotor 23 of the wind power plant 22 and is supplied with drive power 30. In the wind power plant 22 this is done by means of a rotor shaft 24. The transmission 3 comprises planetary stages 31, 32 and 33 and end-side wheel stages 34 arranged one behind the other. The gear stages 31, 32, 33 and 34 output power 35 to the generator 25 or to a mechanical application 36.

Fig. 6 schematically illustrates the structure of one embodiment of an industrial application 28 having a drive mechanism 29. The drive means 29 are designed to provide a drive power 30 which is transmitted to the transmission 3 according to the invention via a torque-transmitting connection. The transmission 3 is in turn connected in a torque-transmitting manner to a mechanical use 36, so that the output power 35 is transmitted to the mechanical use 36.

While the invention has been shown and described in detail with respect to the preferred embodiments, the invention is not limited by the disclosed examples, and other variations may be derived by those skilled in the art without departing from the scope of the invention.