Mounting device and mounting method

Abstract

An installation device (1) for installing a roller (18) in a shaft-hub connection is disclosed, wherein the installation device (1) comprises a base ring (2) comprising a radially inwardly opening recess (4) for receiving the roller (18), wherein the recess (4) extends axially and is distributed circumferentially, wherein the base ring (2) comprising the received roller (18) can be pushed onto a shaft (20).

Description

Technical Field

[0001] This invention relates to a mounting device for mounting rollers in a shaft-hub connection according to the preamble of patent claim 1. The invention also relates to a shaft-hub connection including such a mounting device according to patent claim 10, and a mounting method for mounting rollers in a shaft-hub connection according to patent claim 11. Background Technology

[0002] In shaft-hub connections, rollers can be used as connecting elements for transmitting force. In electrically insulated shaft-hub connections, rollers can be used in addition to couplings between the shaft and hub to ensure insulation between them. In this case, ceramic rollers can be used, for example.

[0003] Regardless of the application, to prevent roller loss during installation, the rollers are typically first manually attached to the shaft when installing them onto the shaft-hub joint. Cable ties, mounting sleeves, etc., can be used for this purpose. After the rollers are installed onto the shaft and then the hub is installed, these cable ties and mounting sleeves must be removed again. However, this manual attachment of the rollers to the shaft is very time-consuming, especially in large-scale applications. Summary of the Invention

[0004] Therefore, the object of the present invention is to improve the installation of rollers in the shaft-hub connection.

[0005] This objective is achieved by the mounting device according to patent claim 1, the shaft-hub connection according to patent claim 10, and the mounting method according to patent claim 11.

[0006] The mounting device is used to install rollers in a shaft-hub connection. The shaft-hub connection can be, in particular, an electrically insulated shaft-hub connection, such as the hollow shaft or motor shaft of an electric motor and its input / drive shaft or hub. Here, the rollers are used for force transmission between the shaft and the hub. For electrically insulated shaft-hub connections, to ensure electrical insulation between the shaft and the hub, the rollers can be constructed as electrically insulated rollers and can be made of, for example, ceramic.

[0007] The mounting device includes a base ring comprising radially inwardly opening recesses for receiving rollers. These recesses extend axially and are distributed circumferentially, preferably evenly. Rollers can be introduced into these recesses for mounting onto the shaft and held within them. The base ring with the received rollers can then be pushed onto the shaft. During installation, the rollers are held in place by the base ring without requiring further manual holding or securing with cable ties, as in previous installation processes.

[0008] Because of the mounting device, the appropriate number of rollers can be equipped for the mounting device in a simple way first, and then it can be pushed onto the shaft.

[0009] Specifically, the recess can have a shape complementary to that of the roller. Due to this complementary shape, the roller is enclosed by the recess on its outer surface. Furthermore, a stop element can be provided on one side of the recess to axially support the roller as it is introduced into the base ring or the recess. Therefore, these stop elements provide end-side supporting for the roller received in the mounting device.

[0010] According to another embodiment, the mounting device includes a retaining bridge for stabilizing the rollers during installation. The retaining bridge is arranged circumferentially between the recesses. Here, the retaining bridge abuts against the rollers, specifically on the radially inner side of the pitch circle diameter. On the one hand, the rollers can thus be supported by the retaining bridge in the axial direction, particularly when the retaining bridge extends beyond the recesses in the axial direction. On the other hand, in combination with the recesses, the retaining bridge can be used to clamp the rollers into the mounting device. This simplifies installation onto the shaft because the rollers will not fall out of the mounting device during installation.

[0011] The retaining bridge may include openings to allow lubricant to flow through in the installed state. Specifically, the retaining bridge may include corresponding openings located between the rollers or recesses. Due to these openings, lubricant can flow through the shaft-hub joint when the mounting device, including the rollers, is mounted on the shaft and the hub is actuated. Because of the openings, the mounting device can remain on the shaft-hub joint without interfering with the lubricant flow, thereby ensuring lubrication between the shaft, hub, and rollers even in the fully installed state.

[0012] According to another embodiment, the side surface of the base ring forms a stop surface for a stop element of the shaft. When the mounting device is pushed onto the shaft, the side surface of the base ring can abut against the stop element of the shaft. The end position between the mounting device and the shaft can be defined by the stop surface of the mounting device and the stop element of the shaft.

[0013] On the side opposite to the stop surface, the base ring may include a chamfer adapted to the shape of the hub in the shaft-hub connection. This means that on the opposite side surface of the base ring to the stop element that does not face the shaft, the shape of the base ring can be adapted to the shape of the hub to ensure optimal clamping of the mounting device between the hub and the shaft in the fully installed state.

[0014] According to another embodiment, the side surface of the base ring includes depressions opposite to the recesses to support the rollers of adjacent mounting devices. These depressions are particularly located on the rear side of the stop element and can support the received rollers of adjacent mounting devices in an interference fit. For example, multiple mounting devices can be stacked aligned with each other, each mounting device including rollers received therein. To simplify the transport of rollers, the mounting devices can not only be stacked but also pushed onto support sleeves (such as cardboard sleeves), and the rollers can be arranged aligned relative to each other.

[0015] According to another embodiment, the base ring includes radially outward openings for engagement by a tool. These openings are provided to enable automatic removal of the mounting device and automatic mounting of the rollers onto the shaft using the mounting device, into which the tool can easily engage. The tool can then grip the mounting device, which includes the rollers received therein, and push it onto the shaft. This is advantageous, especially in large-scale applications.

[0016] The mounting device can also be configured such that during installation in the shaft-hub joint, the mounting device can be pushed downwards from the rollers and can remain in the shaft-hub joint after installation. In this way, the mounting device can perform a dual function. On the one hand, it can facilitate easier installation of the rollers onto the shaft or into the shaft-hub joint; on the other hand, after installation, it can function as a spacer or distance sleeve between the shaft and the hub. In particular, when the mounting device also functions as a spacer after installation, it is preferably formed of a non-conductive or insulating material, such as plastic. After installation, insulation between the hub and shaft can thus be achieved by the rollers (especially when they are made of ceramic) and the mounting device itself (which functions as an insulating spacer). Here, the rollers are insulated in the radial direction, while the mounting device is insulated in the axial direction.

[0017] According to another aspect, a shaft-hub connection is proposed, comprising a shaft and a hub pushed onto the shaft. A mounting device, as described above, is arranged between the shaft and the hub, wherein the mounting device specifically functions as an insulating spacer.

[0018] According to another aspect, a mounting method for mounting rollers in such a shaft-hub connection is proposed. The method includes the steps of: arranging the rollers in a mounting device as described above, pushing the mounting device onto the shaft, and pushing the hub onto the shaft, wherein the hub pushes the mounting device from the rollers, and the mounting device is clamped between the shaft and the hub.

[0019] As described above, in this case, the mounting device can perform a dual function: on the one hand, it serves as a retaining device for mounting the rollers in the shaft-hub connection, and on the other hand, it serves as a spacer, especially as an insulating spacer between the shaft and the hub after installation.

[0020] Further advantages and advantageous embodiments are set forth in the specification, drawings, and claims. Here, in particular, the combinations of features listed in the specification and drawings are merely exemplary, such that features may also exist individually or in other combinations. Attached Figure Description

[0021] The invention is described in more detail below using exemplary embodiments depicted in the accompanying drawings. Here, the exemplary embodiments and combinations shown in the exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. The scope is defined only by the pending claims.

[0022] Figure 1 A perspective view of the mounting device from above is shown;

[0023] Figure 2 It shows from below Figure 1 A perspective view of the installation device;

[0024] Figure 3 It shows from below Figure 1 A plan view of the installation device;

[0025] Figure 4 It shows from above Figure 1 A plan view of the installation device;

[0026] Figure 5 It shows Figure 1 A cross-sectional view of the installation device;

[0027] Figure 6 The following is shown: Figure 1 A perspective view of the shaft-hub connection of the mounting device;

[0028] Figure 7 It shows from above Figure 6 A perspective view of the shaft-hub connection;

[0029] Figure 8 It shows Figure 6 Cross-sectional view of the shaft-hub connection;

[0030] Figure 9 A cross-sectional view of the stacking installation device for transportation is shown; and

[0031] Figure 10 Another cross-sectional view of the stacking installation device for transportation is shown.

[0032] Explanation of reference numerals in the attached figures

[0033] 1 Installation device

[0034] 2. Base ring

[0035] 4 concavity

[0036] 5. Stopping elements

[0037] 6. Maintain the bridge

[0038] 8 Opening

[0039] 10 gaps

[0040] 12. Depression

[0041] 14. Chamfer

[0042] 16 side surfaces

[0043] 18 rollers

[0044] 20-axis

[0045] 22 hubs

[0046] 24 Stopping elements

[0047] 26 sleeve Detailed Implementation

[0048] In the following text, identical or functionally equivalent elements are indicated by the same reference numerals.

[0049] Figure 1 A mounting device 1 is shown, which is used to hold the rollers in the hub-shaft connection during transport and installation, thereby simplifying installation in the hub-shaft connection. For this purpose, the mounting device 1 includes a base ring 2. The base ring 2 includes a recess 4 that opens radially inward to receive the rollers. Here, the rollers can be axially held at the end of a stop element 5, which may be part of the base ring 2.

[0050] In addition, retaining bridges 6 extending axially are provided. During transport and installation, the roller is supported in its axial extension by retaining bridges 6 respectively arranged on both sides of the recess 4. Each retaining bridge 6 includes an opening 8, which allows lubricant to flow through the shaft-hub connection after installation.

[0051] To enable automated transport and installation, the mounting device 1 may include notches (grooves / cuts / notches) 10. Tools can engage these notches 10 to enable automated handling of the mounting device 1, including the rollers housed therein.

[0052] like Figure 2 As shown, the stop element 5 can have a recess 12 formed on its rear side, into which adjacent rollers can engage during transport. This allows multiple mounting devices, including the rollers received therein, to be aligned and stacked. This combination Figure 9 and Figure 10 To describe in more detail.

[0053] like Figure 1 and Figure 2 As shown, the recess 4 has a shape complementary to that of the roller. Due to this complementary shape, the recess 4 can enclose the roller on the outer surface of the roller.

[0054] The recess 4 and the retaining bridge 6 can preferably be evenly distributed in the circumferential direction, for example, as shown in the figure. Figure 3 and Figure 4 As shown. Due to this uniform circumferential distribution of the recess 4 and the retaining bridge 6, the rollers can also be evenly distributed circumferentially during transportation and installation. In this way, it can be ensured that the rollers do not come into contact with each other during transportation and installation (which could lead to damage).

[0055] If the mounting device 1 is installed in the shaft-hub connection, the side surface 16, which is arranged opposite to the retaining bridge 6 and the recess 4, can be used as a stop surface for the stop element of the shaft-hub connection. Furthermore, the mounting device 1 may include a chamfer 14 on the opposite side, which can be adapted to the shape of the hub. As will be described below, this chamfer 14 ensures that the mounting device 1 has an optimal seat between the shaft and the hub.

[0056] like Figures 6 to 8As shown, firstly, the mounting device 1, including the roller 18 received therein, can be pushed onto the shaft 20 (e.g., the hollow shaft of an electric motor). Subsequently, the hub 22 (e.g., the input shaft of an electric motor) is pushed onto the mounting device 1 or onto the shaft 20. Due to this process, the hub 22 pushes the mounting device 1 towards the stop element 24 of the shaft 20. During this time, the mounting device 1 is pushed downwards from the rolling element 18, so that the rolling element 18 is arranged between the shaft 20 and the hub 22 without the mounting device 1. The mounting device 1 is clamped between the shaft 20 and the hub 22, wherein the side surface 16 of the mounting device 1 abuts against the shaft 20 on the stop element 24. After installation, the mounting device 1 can be used as a spacer between the shaft 20 and the hub 22. When the mounting device 1 is made of plastic or another insulating material, additional insulation can occur in the axial direction between the shaft 20 and the hub 22.

[0057] In its final position, the mounting device 1 is completely pushed off the roller 18. Since the mounting device 1 remains within the shaft-hub connection and is no longer removed, it is essential to ensure that the mounting device 1 does not negatively impact the function of the shaft-hub connection (e.g., prevent lubricant flow). Therefore, as described above, the mounting device 1 includes openings 8. These are designed to allow lubricant flow even in the final mounting position.

[0058] As mentioned above, multiple mounting units 1 can be stacked to enable easy transport. This is in Figure 9 and Figure 10 As depicted in the diagram. For example, mounting device 1 can be pushed onto sleeve 26 (e.g., cardboard sleeve). Here, the roller 18 of mounting device 1 can engage in the recess 12 of adjacent mounting devices 1 to enable aligned stacking between mounting devices 1. This is for safe transport, where damage to the roller 18 can be prevented because the rollers 18 of adjacent mounting devices 1 cannot abut against each other.

[0059] If the mounting device 1 includes the notch 10 as described above, the mounting device 1 can be automatically removed from the sleeve 26 using a tool. This allows for automatic placement of the mounting device 1 and enables the roller 18 to be installed in the shaft-hub connection.

[0060] Thanks to the aforementioned mounting device, the rollers can be safely transported and installed in the shaft-hub connection. At the same time, the installation of the rollers in the shaft-hub connection is simplified, as the mounting device can remain in the shaft-hub connection after installation and can be used as a spacer as needed.

Claims

1. A mounting device (1) for mounting a roller (18) in a shaft-hub connection, characterized in that, The mounting device (1) includes a base ring (2) having a radially inwardly opening recess (4) for receiving the roller (18), wherein the recess (4) extends axially and is distributed circumferentially, and the base ring (2) including the received roller (18) can be pushed onto the shaft (20). The recess (4) has a radially inner side for contacting the roller (18) and a radially outer side that is radially opposite to the radially inner side.

2. The mounting device of claim 1, wherein The recess (4) has a shape that is complementary to that of the roller (18).

3. Mounting device according to claim 1 or 2, characterized in that The mounting device (1) includes a retaining bridge (6) for stabilizing the roller (18) during installation, the retaining bridge (6) being arranged circumferentially between the recesses (4).

4. The mounting device of claim 3, wherein, The retaining bridge (6) includes an opening (8) to allow lubricant to flow in the installed state.

5. The mounting device of claim 1 or 2, wherein The side surface (16) of the base ring (2) forms a stop surface for the stop element (24) of the shaft (20).

6. The mounting device of claim 5, wherein, The opposite side surfaces of the base ring (2) include chamfers (14) adapted to the shape of the hub (22) of the shaft-hub connection.

7. The mounting device of claim 1 or 2, wherein The side surface of the base ring (2) includes a recess (12) opposite to the recess (4) to support the roller (18) of the adjacent mounting device (1).

8. The mounting device of claim 1 or 2, wherein The base ring (2) includes an outer radial notch (10) for engagement by a tool.

9. The mounting device of claim 1 or 2, wherein, The mounting device (1) is configured such that during installation in the shaft-hub connection, the mounting device (1) can be pushed downward from the roller (18) and can remain in the shaft-hub connection after installation.

10. A shaft-hub connection comprising a shaft (20) and a hub (22) pushed onto the shaft (20), wherein The mounting device (1) according to any one of the preceding claims is arranged between the shaft (20) and the hub (22), and the mounting device (1) is particularly used as an insulating spacer.

11. A mounting method for mounting a roller (18) in a shaft-hub connection according to claim 10, wherein The installation method includes the following steps: The roller (18) is arranged in the mounting device (1) according to any one of claims 1 to 9; Push the mounting device (1) onto the shaft (20); and The hub (22) is pushed onto the shaft (20), wherein the hub (22) pushes the mounting device (1) from the roller (18) and clamps the mounting device (1) between the shaft (20) and the hub (22).

Images