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CN-116888451-B - Overload protection for transmission test stand

CN116888451BCN 116888451 BCN116888451 BCN 116888451BCN-116888451-B

Abstract

The invention relates to a rotor bearing unit (1) for testing a transmission component (2). In order to improve the assembly for testing the transmission component (2), the invention proposes that the rotor bearing unit (1) has a shaft part (11), a guide box (12) and a housing part (13). The shaft part (11) is rotatably arranged relative to the housing part (13), wherein the housing part (13) is frictionally connected to the guide box (12), the housing part (13) of the rotor bearing unit (1) is designed to be connected to the housing (21) of the transmission component (2) to be tested in a force-fit and/or form-fit manner, and the shaft part (11) of the rotor bearing unit (1) is designed to be connected to the shaft (22) of the transmission component (2) to be tested in a force-fit and/or form-fit manner. The invention also relates to a testing device (3) comprising such a rotor bearing unit (1). The testing device (3) further comprises a transmission component (2) to be tested, in particular a transmission or planetary transmission, the housing part (13) of the rotor bearing unit (1) being connected to the housing (21) of the transmission component (2) to be tested in a force-fit and/or form-fit manner, and the shaft part (11) of the rotor bearing unit (1) being connected to the shaft (22) of the transmission component (2) to be tested in a force-fit and/or form-fit manner.

Inventors

  • R. Hambrecht

Assignees

  • 弗兰德有限公司

Dates

Publication Date
20260505
Application Date
20220221
Priority Date
20210226

Claims (18)

  1. 1. A rotor bearing unit (1) for testing a transmission component (2), wherein the rotor bearing unit (1) has a shaft portion (11), a guide box (12) and a housing portion (13), wherein the shaft portion (11) is rotatably arranged relative to the housing portion (13), wherein the housing portion (13) is connected to the guide box (12), wherein the shaft portion (11) of the rotor bearing unit (1) is designed for a force-fit and/or form-fit connection with a shaft (22) of the transmission component (2) to be tested, It is characterized in that the method comprises the steps of, The housing part (13) is connected to the guide box (12) in a friction-locking manner, Wherein the housing part (13) of the rotor bearing unit (1) is designed for a force-fit and/or form-fit connection with a housing (21) of the transmission component (2) to be tested.
  2. 2. Rotor bearing unit (1) according to claim 1, wherein the transmission component (2) to be tested is a transmission.
  3. 3. Rotor bearing unit (1) according to claim 1 or 2, wherein the housing part (13) has a housing flange for fastening the housing (21) of the transmission component (2) to be tested with it for co-rotation by means of an axially oriented fastening device.
  4. 4. Rotor-bearing unit (1) according to claim 1 or 2, wherein the housing part (13) has an axially oriented blind hole with an internal thread which is screwed to the housing (21) of the transmission component (2) to be tested.
  5. 5. Rotor bearing unit (1) according to claim 1 or 2, wherein the housing part (13) is configured as mirror-inverted.
  6. 6. Rotor bearing unit (1) according to claim 1 or 2, wherein the guide box has a first portion (121) and a second portion (122), wherein the friction lock level of the friction lock connection (30) can be set by a predefinable distance (d) between the first portion (121) and the second portion (122) of the guide box (12) and/or by a tribological contact configuration between the housing portion (13) and the guide box (12).
  7. 7. Rotor bearing unit (1) according to claim 6, wherein the first portion (121) and/or the second portion (122) has a wear resistant sliding surface facing the housing portion (13).
  8. 8. Rotor bearing unit (1) according to claim 7, wherein the wear-resistant sliding surface is formed by a PVD hard material layer and/or by a DLC layer.
  9. 9. Rotor bearing unit (1) according to claim 1 or 2, wherein the transmission component (2) to be tested is a planetary transmission.
  10. 10. Test device (3) with a rotor bearing unit (1) according to any one of claims 1 to 9, wherein the test device (3) also has the transmission component (2) to be tested, wherein the housing part (13) of the rotor bearing unit (1) is connected to the housing (21) of the transmission component (2) to be tested in a force-fit and/or form-fit manner, wherein the shaft part (11) of the rotor bearing unit (1) is connected to the shaft (22) of the transmission component (2) to be tested in a force-fit and/or form-fit manner.
  11. 11. The test device (3) according to claim 10, wherein the transmission component (2) to be tested is a driver.
  12. 12. Testing device (3) according to any of claims 10 and 11, wherein the transmission member (2) or transmission to be tested is provided for use in a wind turbine.
  13. 13. The test device (3) according to any one of claims 10 to 11, wherein the nominal power of the transmission component (2) to be tested is greater than 3MW.
  14. 14. The test device (3) according to any one of claims 10 to 11, wherein the test device (3) is arranged in a back-to-back arrangement.
  15. 15. The test device (3) according to any one of claims 10 to 11, wherein the transmission component (2) to be tested is coupled to an electric machine (4).
  16. 16. A testing device (3) according to claim 11, wherein the transmission component (2) to be tested is a planetary transmission.
  17. 17. Use of a rotor bearing unit (1) according to any one of claims 1 to 9 and/or a testing device (3) according to any one of claims 10 to 16 for testing a planetary transmission for a wind turbine.
  18. 18. Use according to claim 17, wherein a ring gear of the planetary transmission is used as the housing (21) and a sun shaft and/or a planet carrier shaft of the planetary transmission is used as the shaft (22).

Description

Overload protection for transmission test stand Technical Field The invention relates to a rotor bearing unit for testing a transmission component. The invention also relates to a testing device with a rotor bearing unit of this type, wherein the testing device also has a transmission component to be tested. Furthermore, the invention relates to the use of a rotor bearing unit of this type and/or a testing device of this type. Background Today, transmission components (such as, for example, a transmission/generator combination, or a generator) are tested as one or more modules in an integrated system. This applies in particular to the drive components of wind turbines, the performance and structure of which are tested in modules. In this type of system, the transmission is often arranged between the generator and the rotor bearing of the drive train. The transmission part is here connected to the adjacent shaft in a force-fitting and/or form-fitting manner. The transmission is often designed here as a planetary transmission. Within the scope of development testing or series acceptance testing, the system is tested at rotational speeds and often at torque in a torque circuit. If a fault occurs, sudden deceleration of the shaft may be required. The forces required for this purpose are absorbed by the rotor bearing unit and introduced into the base of the rotor bearing unit or the test device. The forces and moments generated during this process must be able to be borne by the load-bearing structure intersecting the base and must also be able to be absorbed by the base without damage. The corresponding component must therefore be configured for said mechanical loading, otherwise the component may break due to loading, and the kinetic energy stored by the system may become uncontrollably free, e.g. the fragments fly around. This state is extremely alarming from a safety point of view. In order to manage the risk, a safety clutch or a slip clutch is now used, for example, in order to protect the modules of the transmission and the generator from each other and to separate them from each other in the event of a fault. It is known from DE 10 2007 032 412A1 that in the case of wind turbines of this type, an axially displaceable measuring body of a measuring device is used to indicate the extent of slip of the slip clutch in order to be able to identify the need for maintenance. It is known from CN 110 823 566a that a friction clutch for a motor vehicle is subjected to a fatigue test by being driven at a high rotational speed by a driver via a speed increasing gear by a friction clutch enclosed in a stationary housing, wherein the speed increasing gear acts on an axial side of the friction clutch and the accompanying rotation shaft is axially pressed on the other axial side of the friction clutch. Hereinafter, the testing and inspection of the components will not be distinguished. Disclosure of Invention It is an object of the present invention to improve the arrangement for testing transmission components. This object is achieved by a rotor bearing unit, a testing device and a use according to the invention. Preferred constructions are indicated in the dependent claims and in the following description, which constructions are capable of presenting one aspect of the invention individually or in combination. If one feature is shown in combination with another feature, this is for simplicity of illustration only, and should not be taken to mean in any way that the feature is not an improvement of the present invention without other features. A rotor bearing unit for testing a transmission component has a shaft part, a guide box and a housing part, wherein the shaft part is rotatably arranged relative to the housing part, wherein the housing part is connected to the guide box in a friction-locking manner, wherein the housing part of the rotor bearing unit is designed for connection to a housing of the transmission component to be tested in a force-fit and/or form-fit manner, wherein the shaft part of the rotor bearing unit is designed for connection to a shaft of the transmission component to be tested in a force-fit and/or form-fit manner. The test device has a rotor bearing unit of this type, wherein the test device also has a transmission component to be tested, in particular a transmission or planetary transmission, wherein a housing part of the rotor bearing unit is connected to a housing of the transmission component to be tested in a force-fit and/or form-fit manner, wherein a shaft part of the rotor bearing unit is connected to a shaft of the transmission component to be tested in a force-fit and/or form-fit manner. The invention is based on the discovery, inter alia, that by means of the proposed arrangement, the mechanical loading of the transmission component and the base can be reduced. The invention makes it possible to protect the test device of the system in the event of a malfunction, without subjecting