Method for assembling a rolling bearing and positioning device for positioning an adjustment
By using magnetic interaction to fix the adjustment gasket in the bearing seat, the problem of adjusting the sliding of the gasket during assembly is solved, and the reliable assembly and stability of the rolling bearings are achieved.
Patent Information
- Application Number
- CN202380073316.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-10-19
- Filing Date
- 2023-09-27
- Publication Date
- 2025-05-27
AI Technical Summary
When assembling rolling bearings, the adjustment gaskets are prone to slide, resulting in unstable assembly process.
The adjusting gasket is fixed in the bearing seat by magnetic interaction, and the magnet of the positioning device is used to interact with the adjusting gasket to maintain it in the desired position.
It effectively prevents the sliding of the adjustment gasket, ensures that the rolling bearing is reliably assembled into the bearing seat, and improves the stability of the assembly process.
Smart Images
Figure CN120051641A_ABST
Abstract
Description
Background Art
[0001] In drive components, especially in an electric axle (E-axle), bearing assemblies with rolling bearings are used. In order to compensate for the bearing clearance of the rolling bearing and to preload the rolling bearing, shims can be used. For this purpose, the preloaded rolling bearing already assembled on the shaft is measured (spacing between the bearings). In addition, the depth of the corresponding bearing housing is measured. Subsequently, the thickness of the shim is calculated taking into account different influencing factors and the desired preload force. The shim is assembled between the bearing and the bearing shoulder in the bearing housing.
[0002] In order to assemble the shim, the shim can be placed on the rolling bearing while the rolling bearing is pressed into the bearing housing.
[0003] The disadvantage here is that the shim can easily slip, whereby this process step is relatively unstable. Summary of the Invention
[0004] According to the invention, a method is proposed for assembling a rolling bearing of a bearing assembly into a housing having a first housing part and a second housing part.
[0005] The bearing assembly can be a shaft having one rolling bearing or a plurality, especially two rolling bearings, which are respectively assembled on the shaft. The housing can be configured as a transmission housing. The first housing part can be configured as a transmission cover.
[0006] The first housing part has an inner side and an outer side. A bearing seat for the rolling bearing is arranged or configured at the inner side of the first housing part.
[0007] The method comprises the following steps:
[0008] Provide a bearing assembly having a rolling bearing.
[0009] Position (or assemble) the bearing assembly in the second housing part.
[0010] Provide a shim.
[0011] Position the shim at the bearing seat (or at the inner side of the first housing part).
[0012] Hold (or fix) the shim in the bearing seat (or at the inner side of the first housing part) by means of magnetic interaction. Here, the shim can interact magnetically with the positioning device.
[0013] Connect (assemble) the first housing part to the second housing part. In particular, enclose the second housing part with the first housing part. Push the rolling bearing into the bearing seat by connecting the first housing part to the second housing part. Hold (or fix) the shim in the bearing seat (or at the inner side of the first housing part) by means of magnetic interaction, in particular with a positioning device, during the connection of the first housing part to the second housing part.
[0014] When the two housing parts are assembled at or connected to each other (“housing assembly”), the shim is located between the rolling bearing and the first housing part. In particular, shortly before and during the assembly of the rolling bearing into the bearing seat, the shim is held in the desired (final) position in the bearing seat by magnetic interaction.
[0015] Thereby, it is possible to hold the shim in the desired position, in particular during the assembly of the rolling bearing into the bearing seat, so that the shim can be prevented from slipping and reliable assembly of the rolling bearing into the bearing seat can be ensured.
[0016] According to an improvement, the method can include at least one of the following steps:
[0017] When the position of the shim in the bearing seat (or at the inner side of the first housing part) deviates from a predetermined (desired) position, output a signal. The signal can be an optical signal (e.g., red light) or an acoustic signal.
[0018] When the shim is arranged at a predetermined (desired) position in the bearing seat (or at the inner side of the first housing part), output a signal. The signal can be an optical signal (e.g., green light) or an acoustic signal.
[0019] Thereby, the correct or incorrect position of the shim can be displayed in a simple manner.
[0020] According to an improvement, a positioning device according to the following embodiments can be used to perform the method. For the advantages that can be achieved thereby, reference is made to the relevant embodiments for the positioning device. The measures described in connection with the positioning device and / or to be explained hereinafter can be used for further design variants of the method.
[0021] According to the invention, a positioning device is proposed, which is used for positioning a shim when assembling a rolling bearing of a bearing assembly into a housing having a first housing part and a second housing part.
[0022] The bearing assembly can be a shaft with one rolling bearing or multiple, in particular two, rolling bearings, which are respectively assembled on the shaft. The housing can be configured as a transmission housing. The first housing part can be configured as a transmission cover.
[0023] The first housing part has an inner side and an outer side. At the inner side of the first housing part, a bearing seat for the rolling bearing is arranged or configured.
[0024] The positioning device includes at least one magnet. The positioning device can be positioned or arranged at the outer side of the first housing. The positioning device is arranged such that when it is positioned or arranged at the outer side of the first housing part, by means of the magnetic interaction between the shim and the magnet of the positioning device, the shim positioned or arranged in the bearing seat is held or fixed in the bearing seat (or at the inner side of the first housing part).
[0025] By means of the positioning device, the shim can be held in the desired position especially during the assembly of the rolling bearing into the bearing seat, so that the sliding of the shim can be prevented and the reliable assembly of the rolling bearing into the bearing seat can be ensured.
[0026] According to an improvement, the positioning device can include multiple, in particular three, magnets. The magnets can be arranged in or at the positioning device such that the arrangement structure of the magnets corresponds to the shape of the section of the shim. The arrangement structure of the magnets can correspond to the shape of the section of the shim. The magnets can be arranged such that the magnets are jointly located on a (hypothetical) circular arc or circular arc section.
[0027] Thereby, the magnetic interaction between the magnet and the shim can be increased and thus the holding force for holding the shim can be increased. Therefore, the risk of the shim sliding can be further reduced.
[0028] According to an improvement, one magnet or multiple magnets can be respectively arranged or supported in the positioning device in a manner that can move between a first position and a second position along the moving direction.
[0029] When the positioning device is arranged at the outer side of the first housing part, the one magnet or the multiple magnets can be minimally separated from the shim in the second position and maximally separated from the shim in the first position. In the second position, the one magnet or the multiple magnets can contact the outer side of the first housing part.
[0030] The one magnet or the plurality of magnets can move into the second position based on the magnetic interaction with the shim. If the shim is not arranged at the correct or desired position in the bearing housing, the magnetic interaction with the shim will be weak and insufficient to move the one magnet or the plurality of magnets into the second position. If the magnet has moved into the second position, it can be inferred therefrom that the shim is located at the correct or desired position in the bearing housing.
[0031] According to an improvement, the positioning device can include a preloading device. One magnet or a plurality of magnets of the positioning device can be preloaded into the first position respectively by means of the preloading device. The preloading device can include at least one helical spring, wherein the one magnet or the plurality of magnets can be preloaded into the first position respectively by means of the helical spring.
[0032] Thereby, it can be ensured that the one magnet or the plurality of magnets are arranged in the first position especially when they are not in magnetic interaction with the shim.
[0033] According to an improvement, the preloading device can be arranged such that the preloading force of one magnet or a plurality of magnets can be adjusted accordingly. The preloading force can be adjusted individually for each magnet or jointly for all magnets.
[0034] By adjusting the preloading force, the force required for the one magnet or the plurality of magnets to move out of the first position can be adjusted.
[0035] According to an improvement, the positioning device can include a sensor device. The sensor device can be arranged to detect whether one magnet or a plurality of magnets are respectively arranged in the second position. The sensor device can be arranged to detect whether one magnet or a plurality of magnets are respectively arranged in the first position. The sensor device can be arranged to detect whether one magnet or a plurality of magnets are respectively in the first position or the second position. The sensor device can include at least one inductive sensor for detection.
[0036] Thereby, it can be determined in which position one magnet or a plurality of magnets are arranged along the corresponding moving direction. When the positioning device is arranged on the outside of the first housing part and the shim is positioned in the bearing housing, if the one magnet or the plurality of magnets are in the first position, it can be inferred that the shim is not positioned at the predetermined and desired position. If the one magnet or the plurality of magnets are in the second position, it can be inferred that the shim is positioned at its predetermined and desired position.
[0037] According to an improved embodiment, the assembly device can include a display device. The display device can be configured to display whether one magnet or a plurality of magnets have been detected by the sensor device as being arranged in the second position. The display device can be configured to display whether one magnet or a plurality of magnets have been detected by the sensor device as being arranged in the first position. For this purpose, the display device can be configured for optical display. Acoustic display is also conceivable.
[0038] Thereby, it can be shown in which position one magnet or a plurality of magnets are arranged along the respective movement direction, and thus it can be shown whether the shim has been positioned correctly. Brief Description of the Drawings
[0039] Next, embodiments of the present invention will be explained with reference to the accompanying drawings. Among them:
[0040] Figure 1 A perspective view of the positioning device according to the first embodiment is shown;
[0041] Figure 2 A perspective view of the positioning device positioned on the outer side of the first housing part is shown according to Figure 1 ;
[0042] Figure 3 A perspective view of the positioning device according to the second embodiment is shown;
[0043] Figure 4 Shown according to Figure 3 A cross-sectional view of the positioning device; and
[0044] Figure 5 A diagram of a method for assembling a rolling bearing is shown. Detailed Description of the Embodiments
[0045] Figure 1 A perspective view of the positioning device 28 according to the first embodiment is shown. The positioning device 28 currently has three magnets 30 arranged along an arc section.
[0046] The positioning device 28 is configured to position the shim 26 when assembling the rolling bearing 10 of the bearing assembly 12 into the housing 14 having the first housing part 16 and the second housing part 18 (see Figure 4 ). The first housing part 16 has an inner side 20 and an outer side 22 (see Figure 2 ), wherein a bearing seat 24 for the rolling bearing 10 is arranged at the inner side 20 of the first housing part 16.
[0047] Figure 2 Shown according to Figure 1Perspective view of the positioning device 28, which is positioned on the outer side 22 of the first housing part 16. The first housing part 16 is currently configured as a housing cover. The positioning device 28 is arranged to be able to be positioned on the outer side 22 of the first housing part 16. For this purpose, the positioning device 28 has a recess 31 (see Figure 2 ), which corresponds to a projection 33 (or rib) arranged on the outer side 22 of the first housing part 16.
[0048] Figure 3 Shows a perspective view of the positioning device 28 according to the second embodiment, and Figure 4 shows a sectional view of the positioning device 28 according to the second embodiment. The second embodiment of the positioning device 28 differs from the first embodiment as follows: The positioning device 28 currently has three movable magnets 30. These magnets 30 are each configured to be movable between a first position and a second position along a respective movement direction 32.
[0049] The magnets 30 are each pre-tensioned by a pre-tensioning device 34. The pre-tensioning device 34 currently includes three helical springs 36, where each helical spring 36 pre-tensions the magnet 30 into the first position. In the first position, when the positioning device 28 is positioned on the outer side 22 of the first housing part 16, the magnets are maximally separated from the outer side 22 of the first housing part 16. In the second position, when the positioning device 28 is positioned on the outer side 22 of the first housing part 16, the magnets 30 are minimally separated from the outer side 22 of the first housing part 16. In the second position, the magnets 30 contact the outer side 22 of the first housing part 16. Figure 4 Shows the positioning device 28 in the second position.
[0050] The tension force of the helical springs 36 and thus the pre-tensioning force of the pre-tensioning device 34 can be adjusted respectively by means of adjusting nuts 37.
[0051] The positioning device 28 currently includes a sensor device 38. The sensor device 38 includes three inductive sensors 40. By means of the three inductive sensors 40, it can be determined whether the magnets 30 are in the first position or the second position. The magnets 30 are currently arranged at a lifting rod 43, where the movement of the magnets 30 along the movement direction 32 also causes the movement of the lifting rod 43 along the movement direction 32. The inductive sensors 40 are arranged and configured such that the inductive sensor can detect the movement of the lifting rod 43 and thus the movement of the magnets 30, in particular the movement out of the first position.
[0052] The positioning device 28 further includes a display device 42. The display device 42 is currently connected or coupled to the sensor device 38 and is configured to display whether the sensor device 38 determines that the magnet 30 is arranged in the first position or the second position. The display device 42 is only schematically shown in the figure.
[0053] Figure 5 A diagram showing a method for assembling a rolling bearing 10 is shown. First, the rolling bearing 10 is assembled on the shaft 44. The resulting bearing assembly 12 composed of the rolling bearing 10 and the shaft 44 is assembled or positioned in the second housing part 18.
[0054] The positioning device 28 is positioned on the outer side 22 of the first housing part 16. The shim 26 (from below or the inner side 20 of the first housing part 16) is positioned in the bearing seat 24.
[0055] The shim 26 is held in the bearing seat 24 based on the magnetic interaction with the positioning device 28.
[0056] Subsequently, the first housing part 16 is connected to the second housing part 18, or the first housing part is placed on the second housing part 18. Here, the rolling bearing 10 is pressed into the bearing seat 24, wherein the shim 26 is pressed between the rolling bearing 10 and the bearing seat 24. Here, the shim 26 is always held in the desired position in the bearing seat 24 by means of the magnetic interaction with the positioning device 28.
Claims
1. A method for assembling a rolling bearing (10) of a bearing assembly (12) into a housing (14), in particular a transmission housing, the housing having a first housing part (16) and a second housing part (18), the first housing part being in particular a housing cover, wherein, the first housing part (16) has an inner side (20) and an outer side (22), wherein a bearing seat (24) for the rolling bearing (10) is arranged at the inner side (20) of the first housing part (16), and wherein the method comprises the following steps: - providing a bearing assembly (12) with a rolling bearing (10); - positioning the bearing assembly (12) in the second housing part (18); - providing an adjusting shim (26); - positioning the adjusting shim (20) at the bearing seat (24); - holding the adjusting shim (26) in the bearing seat (24) by means of magnetic interaction, in particular magnetic interaction with a positioning device (28), and - connecting the first housing part (16) to the second housing part (18), wherein by connecting the first housing part (16) to the second housing part (18), the rolling bearing (10) is pressed into the bearing seat (24), and wherein during the connection of the first housing part (16) to the second housing part (18), the adjusting shim (26) is held in the bearing seat (24) by means of magnetic interaction, in particular magnetic interaction with the positioning device (28).
2. The method according to claim 1, characterized in that, the method comprises the following step: - outputting a signal, in particular an optical signal, when the position of the adjusting shim (26) in the bearing seat (24) deviates from a predetermined position.
3. The method according to claim 1 or 2, characterized in that, a positioning device (28) according to any one of claims 4 to 10 is used for carrying out the method.
4. A positioning device (28) for positioning an adjusting shim (26) when assembling a rolling bearing (10) of a bearing assembly (12) into a housing (14), in particular a transmission housing, the housing having a first housing part (16) and a second housing part (18), the first housing part being in particular a housing cover, wherein, The first housing part (16) has an inner side (20) and an outer side (22), wherein a bearing seat (24) for the rolling bearing (10) is arranged at the inner side (20) of the first housing part (16), wherein the positioning device (28) comprises at least one magnet (30), wherein the positioning device (28) can be positioned at the outer side (22) of the first housing part (16) and is arranged such that when the positioning device (28) is positioned at the outer side (22) of the first housing part (16), the shim (26) positioned in the bearing seat (24) is held in the bearing seat (24) by virtue of the magnetic interaction between the shim (26) and the magnet (30) of the positioning device (28).
5. The positioning device (28) according to claim 4, characterized in that the positioning device (28) comprises a plurality of, in particular three, magnets (30), wherein the magnets (30) are arranged at or in the positioning device (28) such that the arrangement structure of the magnets (30) corresponds to the shape of the section of the shim (26), in particular to the shape of the shim (26).
6. The positioning device (28) according to claim 4 or 5, characterized in that one magnet (30) or a plurality of magnets (30) are each arranged or supported in the positioning device (28) in such a way that they can move between a first position and a second position along the movement direction (32).
7. The positioning device (28) according to claim 6, characterized in that the positioning device (28) comprises a preloading device (34), which in particular has at least one helical spring (36), wherein the one magnet (30) or the plurality of magnets (30) are each preloaded into the first position by virtue of the preloading device (34), in particular by the helical spring (36) of the preloading device.
8. The positioning device (28) according to claim 7, characterized in that the preloading device (34) is arranged such that the preloading force of the one magnet (30) or the plurality of magnets (30) can be adjusted accordingly.
9. The positioning device (28) according to any one of claims 6 to 8, characterized in that the positioning device (28) comprises a sensor device (38), wherein the sensor device (38) is arranged to detect whether the one magnet (30) or the plurality of magnets (30) are arranged in the second position accordingly, in particular wherein the sensor device (36) comprises at least one inductive sensor (40) for detection.
10. The positioning device (28) according to claim 9, characterized in that the positioning device (28) comprises a display device (42), wherein the display device (42) is arranged to display, in particular optically display, whether the one magnet (30) or the plurality of magnets (30) have been detected by means of the sensor device (38) as being arranged in the second position.