Rotation angle sensor

Abstract

A rotational angle sensor (100, 200, 304) for rotational motion detection, in particular for multiple revolutions, comprising: a geared assembly having a first member (101, 201) and a second member (102, 202) for mechanically converting a rotational motion into a linear translational motion, the linear translational motion changing an axial relative position between the two members (101, 201, 102, 202); and a distance sensor (103, 203) for determining a distance to the measurement object (104, 204) dependent on the axial relative position. According to the invention, the first component (101, 201) and the second component (102, 202) are produced as plastic molded parts, in particular injection molded parts, and the gearing arrangement has a first thread (1010, 2010) on the first component (101, 201), which interacts with a second thread (1020, 2020) on the distance sensor (103, 203) and / or on the second component (102, 202) in order to mechanically convert the rotational movement into a linear translational movement.

Description

Technical Field

[0001] In general, the invention relates to the field of devices for detecting rotational movements, such as rotational angles and changes in rotational angles, wherein for the detection a mechanical conversion of the rotational movement into another movement takes place.

[0002] In particular, the invention relates to a rotational angle sensor for detecting a rotational motion about an axis of rotation and to a device having a rotational angle sensor. Background Art

[0003] In this type of rotation angle sensors, a distinction is made between incremental rotation angle sensors and absolute rotation angle sensors. Incremental rotation angle sensors are suitable for detecting angle changes relative to an angle reference within an angle range caused by a rotational movement. Absolute rotation angle sensors are suitable for detecting each angular position that can be achieved by a rotational movement as an absolute value over its entire predetermined rotational angle range. Absolute rotation angle sensors are usually limited to a small angular range. In order to reliably detect the rotational movement, a device with sensitive sensor components and particularly matched precision components is usually required, which makes the device complex and prone to wear.

[0004] In particular, the invention relates to an absolute rotational angle sensor which is suitable for absolute angle variables even in the case of multiple revolutions.

[0005] In the field of the invention, the rotational movement used for its detection is mechanically converted into a translational movement. This is desirable for some applications, because the path of the translational movement can usually be detected more easily, and the conversion can also facilitate detection in the case of multiple revolutions.

[0006] Different solutions are known for converting a rotational movement into a translational movement. One known solution provides that the rotational angle sensor has a gear assembly in the manner of a screw gear, the components of which convert the rotational movement into a linear translational movement when the relative axial position of the components relative to one another changes.

[0007] Preferably, such a rotation angle sensor comprises a distance sensor coupled to the component to determine the distance to the measuring object, wherein the distance changes when the axial relative position changes. Generally speaking, the distance sensor is separated from a so-called proximity sensor, which detects the presence of the measuring object within the distance range and outputs a proximity signal associated therewith.

[0008] Since special transmission components adapted to one another are necessary, previous solutions are complex to produce and must be specially protected when used under harsh conditions. Summary of the invention

[0009] The object of the present invention is to provide a rotational angle sensor which is of the simplest possible construction or which can be produced inexpensively. In this case, however, the rotational angle sensor should be designed to be as robust as possible with respect to environmental influences.

[0010] This object is achieved in that a first component and a second component of a transmission-type component of a rotational angle sensor are manufactured as plastic molded parts, and the transmission-type component has a first thread on the first component, which interacts with a second thread on the distance sensor and / or on the second component to mechanically convert a rotational movement into a linear translational movement.

[0011] Such a rotation angle sensor according to the invention for detecting a rotational movement has a transmission-type assembly comprising a first component and a second component. Preferably, the first component is implemented in one piece and / or the second component is implemented in one piece. Preferably, at least one of these components is manufactured as an injection molded part, in particular, both components can be manufactured as plastic injection molded parts.

[0012] The gear assembly is designed to mechanically convert a rotational movement into a linear translational movement, which changes the axial relative position between the first component and the second component. In general, a gear assembly is understood to be a component that converts one movement into another movement. This can be done in conjunction with other components, but in particular independently of them. Preferably, the linear translational movement runs in the axial direction, that is, along the axis of rotation corresponding to the rotational movement or technically parallel thereto.

[0013] In a preferred embodiment, the rotation angle sensor is implemented as an absolute rotation angle sensor. Preferably, the rotation angle sensor is suitable for multiple revolutions, in particular for a rotation angle range of at least five revolutions, in particular at least ten revolutions, for example at least twenty-five revolutions. Preferably, the rotation angle sensor has a stop range for limiting its rotation angle range.

[0014] The rotation angle sensor includes a distance sensor, which is used to determine the distance to the measurement object related to the axial relative position. The measurement object can be an arbitrarily defined range, measurement surface, measurement point or the like. The measurement object can be a component of the rotation angle sensor, in particular one of the components. However, the measurement object can also be implemented separately from the first component and the second component, for example, as part of an external device.

[0015] Particularly preferably, the distance sensor is designed as a contactless distance sensor, whereby no direct physical contact with the measured object is required in order to determine the distance to the measured object. Preferably, the distance sensor consists of components that are immovable relative to one another. Preferably, the first thread and the second thread extend along the axis of rotation. Preferably, the distance sensor is radially surrounded by the first component and / or the second component, thereby ensuring better protection of the distance sensor from environmental influences.

[0016] Generally speaking, it is preferred that at least the first thread or the second thread has a constant thread geometry, in particular a continuous thread flank, in particular a constant thread depth, in particular a constant pitch. This allows the threads to mesh with each other in a reliably guided manner. In one embodiment, at least one of the two threads is interrupted in sections, which in particular enables the use of corresponding threads with different threads.

[0017] The described interaction of the first and second components by means of the first and second threads allows the rotation angle sensor to be constructed particularly simply, which enables a cost-effective, in particular suitable for mass production and robust design of the rotation angle sensor. The number of components required to realize the rotation angle sensor is reduced to a minimum compared to conventional rotation angle sensors. In addition, the inventors have found that by suitable coordination of the threads, even when using inexpensive spacing sensors with lower accuracy, accurate detection of rotational movements for industrial purposes can be ensured.

[0018] In one embodiment, the first thread is manufactured jointly and / or integrally with the first component. In one embodiment, the first thread is manufactured separately from the first component and is engaged with the first component, in particular in a form-fitting manner. Preferably, the first thread can be manufactured from a material different from the material of the first component.

[0019] In one embodiment, at least a portion of the second thread that interacts with the first thread is manufactured jointly and / or integrally with the second component. This can apply in particular to at least 50%, in particular at least 70%, of the axial length of the second thread. In one embodiment, the second thread is manufactured separately from the second component and is engaged with the second component, in particular in a form-fitting manner. Preferably, the second thread can be manufactured from a material different from the material of the second component.

[0020] The design of the rotational angle sensor is further simplified by the integrated production of the thread and the component.

[0021] In a preferred embodiment, at least a portion of the second thread interacting with the first thread is produced integrally with at least one region of the distance sensor. This may apply in particular to at least 50%, in particular at least 70%, of the axial length of the second thread.

[0022] The distance sensor may include a sensor housing and a sensor component, wherein the sensor housing particularly surrounds the sensor component in a fluid-tight manner. The sensor component is used to detect the distance of the measured object. The sensor component is protected in a simple manner by the sensor housing. Preferably, the above-mentioned area of ​​the distance sensor is a part of the sensor housing. That is, a part of the second thread or the second thread can be arranged on the sensor housing, in particular, manufactured integrally with the sensor housing. In particular, the sensor housing is made of metal, which on the one hand ensures better protection of the sensor component, and on the other hand, when the thread is implemented integrally, realizes an advantageous sliding pairing with the first thread made of plastic.

[0023] In one embodiment, the second thread is designed as an internal thread pointing toward the first component. In one embodiment, the second thread is designed as an external thread pointing toward the first component. In particular, the first thread points toward the distance sensor.

[0024] According to an advantageous embodiment, at least the first thread or the second thread (that is to say, in particular the first thread and the second thread) has a thread cross-sectional angle of at least 40°, in particular at least 55°, in particular between 55° and 65°. The thread cross-sectional angle describes the angle between the tooth flanks of two adjacent pitches of the thread facing each other in the axial direction. Particularly preferably, the first and / or the second thread is implemented as a metric, in particular ISO metric thread, in particular as an adjustment thread or a fine thread, particularly preferably as an M12 thread. Preferably, the first and second threads have a nominal diameter of at least 5 mm, preferably a maximum of 20 mm. Such threads are promoted as fastening threads due to their steep thread cross-sectional angle. However, it has been shown that despite this, a reliable mechanical conversion of the rotational movement into a linear translational movement is ensured, whereby the rotational angle sensor can also be manufactured more simply and more cost-effectively.

[0025] Particularly preferably, the first thread and the second thread are configured so that the transmission-type component converts the rotational movement by performing a single revolution into a linear translational movement over a path, in particular an axial path, of 0.25 mm to 25 mm, in particular 0.5 mm to 10 mm, in particular 1 mm to 2.5 mm. For this purpose, the threads have a corresponding pitch. Particularly preferably, the path of the linear translational movement by a single revolution corresponds to the pitch of the corresponding thread. Generally speaking, it is preferred that the maximum path of the linear translational movement is at least 5 mm, in particular at least 15 mm, in particular not more than 60 mm.

[0026] In an advantageous embodiment, the distance sensor is designed at least as an inductive sensor. In an advantageous embodiment, the distance sensor is designed at least as a capacitive sensor. In an advantageous embodiment, the distance sensor is designed at least as an optical sensor.

[0027] In general, the distance sensor can preferably include further components that operate according to different measuring principles, for example to increase the measuring accuracy. In a preferred embodiment, the distance sensor is designed to determine the distance to the measured object by propagation time measurement, that is, to determine the distance to the measured object by determining the time that the signal needs to pass through the measuring section between the distance sensor and the measured object. In general, the distance sensor and the measured object are preferably arranged one after the other without overlap. Preferably, the distance sensor is designed to detect different inductances, different capacitances and / or different propagation times of the signal for each distance from the distance sensor to the measured object that is related to the axial relative position.

[0028] In one embodiment, the measuring object is implemented as a surface area pointing to the distance sensor in the axial direction. In a preferred embodiment, the measuring object is implemented as a plate, especially made of metal. The measuring object made of metal can advantageously cooperate with a capacitive or inductive sensor. Preferably, the plate is axially held on the first component, especially on the axially distal end of the first component. In another embodiment, the plate is omitted, wherein the rotation angle sensor can be configured to be arranged on the machine component so that the distance related to the axial relative position to the area of ​​the machine component used as the measuring object, especially pointing to the distance sensor, can be determined by the distance sensor. Preferably, such a machine component is constructed as a shaft, an axis or a bushing.

[0029] In an advantageous embodiment, the distance sensor is fastened to the second component in a rotationally fixed manner, in particular in a fixed position. To this end, the second component preferably has a sensor fastening portion, which cooperates with the distance sensor in a force-fitting and / or form-fitting manner to fasten the distance sensor to the second component.

[0030] In particular, the sensor fastening part for fastening the distance sensor engages radially in a recess of the distance sensor and / or clamps the distance sensor radially relative to the second component.

[0031] In one embodiment, the distance sensor is adhesively bonded and / or welded to the second component in a fixed manner. This enables the rotational angle sensor to be produced particularly simply and can contribute to protecting the distance sensor from environmental influences.

[0032] In order to fasten the rotation angle sensor to a machine part that can rotate relative to each other, in an advantageous embodiment, the first component and the second component each have a fastening region. The respective fastening region enables, in particular selectively, fastening to the respective machine part in a fixed position in the axial direction and / or fastening to the respective machine part in an axially movable manner. One of the two components, in particular the first component, can be fastened to the first of the machine parts in an axially fixed position by means of its fastening region, and the other of the two components, in particular the second component, can be fastened to the second of the machine parts in an axially movable manner and in particular in a rotationally fixed manner by means of its fastening region. Therefore, when the relative position between the two components changes, tilting is not possible.

[0033] According to a preferred embodiment, the first component and / or the second component material are uniformly made of fiber-reinforced, especially glass-fiber-reinforced and / or carbon-fiber-reinforced plastic. Particularly preferably, the first and second components are made of the same plastic, especially made of a plastic optimized in friction, for example by adding a solid lubricant.

[0034] Particularly preferably, the rotational angle sensor comprises a guide element, by means of which the first component and the second component are guided axially, in particular slidingly, displaceably relative to each other. Particularly preferably, the guidance is realized by axially extending, in particular cylindrical, guide surfaces of the first component and the second component that slide against each other. The guidance prevents tilting of the components when the relative axial position changes.

[0035] In general, it is preferred that the first component and the second component are arranged coaxially with the distance sensor. Preferably, the first component and the second component can be arranged coaxially with the rotation axis of the machine parts that can rotate relative to each other to detect the rotational movement of these machine parts relative to each other. Preferably, the distance sensor can be arranged coaxially with the rotation axis. In general, it is preferred that the rotation angle sensor is constructed essentially rotationally symmetrically around the rotation axis.

[0036] In a particularly compact embodiment, the rotation angle sensor consists of a maximum of six, in particular a maximum of four, individual components (e.g. a first component, a second component, a distance sensor and a separate measurement object). In addition, further components can be provided for fastening or connecting the rotation angle sensor. Particularly preferably, the rotation angle sensor consists of a first component, a second component and a distance sensor. In particular, the first component or the second component has a measurement object.

[0037] In a particularly cost-effective embodiment, the first component and / or the second component are designed in one piece. Very particularly preferably, the first component is designed as an integral or one-piece injection molded part, preferably an injection molded part made of thermoplastic, and / or the second component is designed as an integral or one-piece injection molded part, preferably an injection molded part made of thermoplastic. In this case, the plastic used can be fiber-reinforced in one or both components, if necessary.

[0038] According to another aspect, the present invention proposes a device, which includes a rotation angle sensor having the features of the present invention. The device is used for winding and unwinding a pipeline guide device, in particular an energy guide chain, the pipeline guide device is used to guide a pipeline, a cable, a hose or the like between a first connection position and a second connection position that can move relative to the first connection position in a protected manner. Particularly preferably, the device includes a pipeline guide device or an energy guide chain. The device includes a holding device and a roller rotatably supported on the holding device for winding and unwinding the pipeline guide device. The rotation angle sensor is arranged on the roller to detect the rotational movement of the roller when winding and unwinding the pipeline guide device. Particularly preferably, in the first component and the second component of the rotation angle sensor, one of the components is connected to the roller in a rotationally fixed manner, and the other of the components is connected to the holding device in a rotationally fixed manner, so as to mechanically convert the rotational movement of the roller into a linear translational movement, which changes the axial relative position between the two components when the roller rotates relative to the holding device.

[0039] According to another aspect, the invention relates to a method for detecting a rotational movement, in particular a plurality of revolutions, in particular by means of a rotational angle sensor according to the invention. A transmission assembly mechanically converts the rotational movement into a linear translational movement by means of a first thread on a first component, the first thread cooperating with a second thread on a second component and / or on a distance sensor. The distance of the distance sensor to the measured object is changed by the translational movement, wherein a distance signal related to the distance is output to output a parameter of the rotational movement. In addition, the invention relates to the use of a rotational angle sensor for detecting a rotational movement. The method or the use may have the features described above in connection with the rotational angle sensor or the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In the following, further advantageous features and effects of the present invention are explained with reference to the accompanying drawings according to preferred embodiments, without limiting the generality of the above description. It shows:

[0041] Figure 1A : A principle sketch of an oblique view of a first embodiment of a rotation angle sensor according to the present invention;

[0042] Figure 1B : From Figure 1A A cross-sectional view of an embodiment of the present invention;

[0043] Figure 2A : A schematic diagram of an oblique view of a second embodiment of the rotation angle sensor;

[0044] Figure 2B : From Figure 2A A cross-sectional view of an embodiment of the present invention; and

[0045] Figure 3 : Schematic principle sketch of the device according to the invention for rolling up and unrolling a pipeline guide, which device has a rotation angle sensor. DETAILED DESCRIPTION

[0046] Figure 1A-1B A first embodiment of a rotation angle sensor 100 according to the present invention is shown. The rotation angle sensor 100 comprises a transmission-type assembly having a first component 101 and a second component 102 and a distance sensor 103. The distance sensor 103 is arranged in the first component 101 and the second component 102 and is connected to the components 101, 102. The second component 102 has a pot-like section, in which the first component 101 is received in a section-like manner. The distance sensor 103, the first component 101 and the second component 102 are arranged coaxially with a common rotation axis.

[0047] The first component 101 has a first thread 1010 which is integrally formed with the first component 101 and which cooperates with a second thread 1020 which is integrally formed with the sensor housing of the distance sensor 103. The second thread 1020 extends over approximately 70% of the axial extension of the sensor housing. The second component 102 has a further thread which cooperates with the second thread 1020 of the distance sensor 103 to axially fix the second component 103 on the distance sensor 103.

[0048] The distance sensor 103 is directed to a plate arranged at one end of the first component 101, and the area of ​​the plate directed toward the distance sensor 103 is used as a measuring object 104 for the distance sensor 103 to determine the free distance between the measuring object 104 and the distance sensor 103. The distance between the measuring object 104 and the distance sensor 103 depends on the relative position of the components 101, 102 relative to each other, that is, on the position of the first component 101 relative to the second component 102.

[0049] The rotational movement of the first component 101 and the second component 102 relative to each other is converted into a linear translational movement along the rotation axis in the manner of a transmission through the cooperation of the first thread 1010 and the second thread 1020. This changes the axial relative position between the first component 101 and the second component 102. When the axial relative position between the two components 101, 102 changes, the distance between the measured object 104 and the distance sensor 103 changes accordingly.

[0050] The distance sensor 103 is at least partially received in a matching receiving portion in the second component 102 and is fastened therein axially and rotationally fixed to the second component. As a sensor fastening part 1021, the second component 102 includes a radial opening and an axial groove, into which a nut (not shown) is installed rotationally fixed. The threaded portion (not shown) is introduced into the radial opening and is screwed with the nut in the following configuration, so that it presses the distance sensor 103 against the body of the second component 102 in its receiving portion in the radial direction, so as to produce a rotational protection for the distance sensor 103 relative to the second component 103, which is at least force-locked.

[0051] The distance sensor 103 is preferably designed as a commercially available inductive sensor, which cooperates with the measured object 104 in such a manner that a change in the distance of the distance sensor 103 from the measured object 104 causes an inductance detected by the distance sensor 103 to change proportionally with respect to the distance in the axial direction between the distance sensor 103 and the measured object 104, which inductance can be tapped as a signal, for example a correspondingly variable analog voltage. The plate can be omitted if the rotational angle sensor 100 is fastened to a machine component so that a metal region of the machine component itself, which is directed toward the distance sensor 103, provides the measured object 104 for determining the distance related to the axial relative position.

[0052] exist Figure 1A-1B In the embodiment, the first component 101 and the second component 102 are respectively placed against each other in a sliding manner with cylindrical surfaces. This provides a guide for the components 101, 102 relative to each other, which ensures that the components 101, 102 are oriented relative to each other, largely without tilt, and thus ensures the desired orientation of the distance sensor 103.

[0053] The first component 101 has a flange area at its end pointing axially away from the second component 102, and the flange area has a passage hole as a fastening area 1012 for fastening to the first machine part in a fixed position in the axial direction. The fastening area 1012 of the first component 101 is also provided for fastening a plate to the first component 101. The second component 102 includes an arm, which extends radially away from the can-shaped area and is provided with a passage hole as a fastening area 1022 at its radial end for fastening to the second machine part in an axially movably manner. The arm extends radially beyond the first component 101, so that the fastening area 1022 is arranged outside the radial extension of the first component 101. Figure 1A and Figure 2A The section plane of the sectional view in FIG. 1 extends through the respective arm and the respective axis of rotation of the respective rotational angle sensor 100 , 200 .

[0054] The first machine part and the second machine part (both not shown) rotate relative to each other during operation, generating a rotational movement to be detected by means of the rotation angle sensor 100. The passage hole is implemented as an elongated hole. The connection with the second machine part can be carried out, for example, by means of a pin guided axially through the elongated hole of the fastening area 1022. Here, the rotation axis of the machine parts that rotate relative to each other during operation coincides with the rotation axis of the rotation angle sensor 100. When the connected machine parts are twisted, their rotational movement is transmitted to the rotation angle sensor 100 through the fastening areas 1012, 1022 and converted into a linear translational movement to change the relative position of the components 101, 102. When the relative position changes, the fastening area can be moved axially relative to the pin and is fixed to the second component 102 in a rotationally fixed manner by the fastening area 1022. By providing an elongated hole, which extends radially to the rotation axis with its length, clamping can be avoided when the relative position changes.

[0055] The distance sensor 103 has a sensor connection on the side facing away from the measured object 104 in the axial direction for connection to an evaluation device.

[0056] exist Figure 2A-2B2 shows a second embodiment of the rotation angle sensor 200 according to the present invention. The second embodiment has a plurality of features identical to the first embodiment, so that only the features different therefrom are discussed below. As in the first embodiment, the distance sensor 203 has a thread. Unlike the first embodiment, the thread is not implemented for cooperating with the first thread 2010 of the first component. The first thread 2010 is implemented as an external thread pointing to the second component 202. The second thread 2020 cooperating with the first thread 2010 is implemented integrally with the second component 202. Here, the guiding of the components 201, 202 by respectively directly sliding against each other is omitted, because the threads 2010, 2020 are arranged in the area of ​​the cylindrical surface. The distance sensor 203 is implemented as a capacitive sensor, which is configured to cooperating with the measuring object 204 in such a way that a change in the distance of the distance sensor 203 relative to the measuring object 204 causes the capacitance detected by the distance sensor 203 to change proportionally with respect to the distance between the distance sensor 203 and the measuring object 204 in the axial direction. The first thread 2010 and the second thread 2020 cooperate to convert the rotational motion of the first component 201 relative to the second component 202 about the rotation axis into a linear translational motion, which changes the axial relative position between the two components 201 , 202 .

[0057] By implementing the threads 2010, 2020 on the first component 201 and on the second component 202, matching thread geometries can be selected without reworking the predetermined distance sensor 203, so that the gear assembly is compatible with a large number of distance sensors. In addition, the threads 2010, 2020 can be manufactured cost-effectively and integrated with the first component 201 or the second component 202. In addition, the thread length of the first thread 2010 or the second thread 2020 can be selected independently of the extension of the distance sensor 203.

[0058] Figure 3 A schematic schematic diagram of an embodiment of an apparatus 300 according to the invention for winding and unwinding a pipeline guide 301 is shown. The apparatus 300 comprises a holding device 302 on which a drum 303 is rotatably supported. The pipeline guide 301 can be wound on the drum 303 or unrolled thereon, resulting in a rotational movement of the drum 303 relative to the holding device 302 about the axis of rotation.

[0059] The rotation angle sensor 304 according to the present invention is fastened coaxially with the rotation axis (wherein, basically, the coaxial position may be different from the ideal coaxial position due to production or structural determination) to the axial ends of the holding device 302 and the roller 303. One of the two components of the rotation angle sensor 304 is fastened to the holding device 302, and the other of the components is fastened to the roller 303. Thus, when the pipeline guide device 301 is wound and unwound, the rotation angle sensor 304 can detect the rotational movement of the roller 303 relative to the holding device 302.

[0060] Reference numerals list

[0061] 100° rotation angle sensor

[0062] 101 First Component

[0063] 102 Second Component

[0064] 103 spacing sensor

[0065] 104Measurement Objects

[0066] 200 rotation angle sensor

[0067] 201 First Component

[0068] 202 Second Component

[0069] 203 spacing sensor

[0070] 204 Measurement objects

[0071] 300 devices

[0072] 301 pipeline guide device

[0073] 302 holding device

[0074] 303 roller

[0075] 304 Rotation Angle Sensor

[0076] 1010 First Thread

[0077] 1012 Fastening area

[0078] 1020 second thread

[0079] 1021 sensor fastening part

[0080] 1022 Fastening area

[0081] 2010 First Thread

[0082] 2012 Fastening Area

[0083] 2020 Second Thread

[0084] 2021 Sensor fastening part

[0085] 2022 Fastening Area

Claims

1. A rotation angle sensor (100, 200, 304), in particular an absolute rotation angle sensor, for detecting rotational motion, in particular for multiple revolutions, comprising: - a transmission assembly having a first component (101, 201) and a second component (102, 202) for mechanically converting a rotational movement into a linear translational movement, said translational movement changing the axial relative position between the two components (101, 201, 102, 202); a distance sensor (103, 203), in particular a contactless distance sensor, for determining a distance to a measurement object (104, 204) in relation to the axial relative position; It is characterized in that - the first component (101, 201) and the second component (102, 202) are manufactured as plastic shaped parts, in particular as injection molded parts; and The transmission-type component has a first thread (1010, 2010) on the first component (101, 201), which first thread cooperates with a second thread (1020, 2020) on the distance sensor (103, 203) and / or on the second component (102, 202) to mechanically convert a rotational motion into a linear translational motion.

2. The rotation angle sensor (100, 200, 304) according to claim 1, It is characterized in that The first thread (1010, 2010) is manufactured integrally with the first component (101, 201), wherein preferably, at least the first component (101, 202) and / or the second component (102, 202) are manufactured as an integral plastic molded part.

3. The rotation angle sensor (100, 200, 304) according to any one of claims 1 or 2, It is characterized in that At least a portion of the second thread (1020, 2020) that cooperates with the first thread (1010, 2010) is manufactured integrally with the second component (102, 202).

4. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that At least a portion of a second thread (1020, 2020) that cooperates with the first thread (1010, 2010) is manufactured integrally with a region of the distance sensor (103, 203), in particular with a sensor housing of the distance sensor (103, 203), and the sensor housing in particular surrounds a sensor component of the distance sensor (103, 203) in a fluid-tight manner.

5. The rotation angle sensor (100, 200, 304) according to claim 3, It is characterized in that The second thread (1020, 2020) is implemented as an internal thread pointing toward the first component (101, 201).

6. The rotation angle sensor (100, 200, 304) according to claim 4, It is characterized in that The second thread (1020, 2020) is implemented as an external thread pointing toward the first component (101, 201).

7. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first thread (1010, 2010) and / or the second thread (1020, 2020) have a thread section angle of at least 40°, in particular at least 55°.

8. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first thread (1010, 2010) and the second thread (1020, 2020) are configured to have the following corresponding pitches so that the transmission-type component converts the rotational motion performed with a single rotation into a linear translational motion over a path of 0.25mm to 25mm, especially 0.5mm to 10mm.

9. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The distance sensor (103, 203) is implemented at least as an inductive sensor or a capacitive sensor, wherein, in particular, the distance sensor (103, 203) and the measured object (104, 204) are arranged one behind the other in the axial direction without overlapping.

10. The rotation angle sensor (100, 200, 304) according to any of the preceding claims, in particular according to claim 9, characterized in that The measurement object (104, 204) is designed as a plate, in particular a plate made of metal, which is held on the first component (101, 201), in particular in the axial direction.

11. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The distance sensor (103, 203) is fastened to the second component (102, 202) in a rotationally fixed manner, in particular in a fixed position, in particular by means of a sensor fastening portion (1021, 2021) of the second component (102, 202), the sensor fastening portion cooperating with the distance sensor (103, 203) in a force-locking and / or form-locking manner for fastening.

12. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first component (101, 201) and the second component (102, 202) respectively have fastening areas (1012, 2012, 1022, 2022) for fastening to a machine component that can rotate relative to each other, wherein One of the two components (101, 201, 102, 202) can be fastened to a first one of the machine components in an axially fixed position by means of its fastening region (1012, 2012, 1022, 2022), and The other of the two components (101, 201, 102, 202) can be fastened to a second one of the machine parts in an axially displaceable manner by means of its fastening region (1012, 2012, 1022, 2022).

13. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first component (101, 201) and / or the second component (102, 202) are made uniformly from fiber-reinforced plastic.

14. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first component (101, 201) and the second component (102, 202) are guided axially relative to each other by a guide element, in particular, are guided in a sliding and displaceable manner.

15. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The first member (101, 201) and the second member (102, 202) are arranged coaxially with the distance sensor (103, 203), and / or It can be arranged coaxially with the axis of rotation of the mechanical parts that can be rotated relative to each other in order to detect the rotational movement of the mechanical parts.

16. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, It is characterized in that The rotation angle sensor (100, 200, 304) is composed of the first component (101, 201), the second component (102, 202) and the distance sensor (103, 203).

17. The rotation angle sensor (100, 200, 304) according to any one of the preceding claims, characterized in that The first component (101, 201) is embodied in one piece and / or the second component (102, 202) is embodied in one piece, wherein in particular the first component (101, 201) and / or the second component (102, 202) are embodied as injection molded parts.

18. A device (300) for winding and unwinding a pipeline guide device (301), in particular an energy guide chain, for guiding a pipeline, a cable, a hose or the like in a protected manner between a first connection point and a second connection point that can be moved relative to the first connection point; the device comprises a roller (303) rotatably supported on a holding device (302) for winding and unwinding the pipeline guide device (301); It is characterized in that A rotation angle sensor (304) is provided on the drum (303) and is arranged according to any one of the preceding claims 1 to 17 for detecting a rotational movement of the drum (303) during winding and unwinding of the pipeline guide device (301).

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