Bearing assembly, roller mechanism, winding device and evaporation coating equipment

Abstract

The utility model discloses a bearing assembly, a roller mechanism, a winding device and evaporation coating equipment. The bearing assembly comprises an outer ring, a middle ring and an inner ring, the outer ring sleeves the middle ring, the middle ring sleeves the inner ring, the outer ring and the middle ring can form a first bearing, and the middle ring and the inner ring can form a second bearing; wherein one of the first bearing and the second bearing is a radial bearing, and the other one of the first bearing and the second bearing is a bearing with a self-aligning function. The radial bearing can be connected with the roller body so as to reduce friction force during rotation of the roller body and reduce heating, and meanwhile, the bearing assembly further has a self-aligning function so as to prevent the roller body from being clamped.

Description

Technical Field

[0001] This utility model relates to the field of evaporation coating equipment technology, and more specifically, to a bearing assembly, a roller mechanism, a winding device, and evaporation coating equipment. Background Technology

[0002] In related technologies, in wide-width winding machinery, due to the large width of the material being wound, the winding roller is quite long. If there is a misalignment in the installation position of the support seats at both ends during the installation of the winding roller, the winding roller may jam when using deep groove ball bearings. If self-aligning bearings are used for support, since self-aligning bearings have double raceways, the rolling friction is large, and the self-aligning bearing is prone to overheating problems if the rotation time is too long.

[0003] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for bearing assemblies.

[0005] According to a first aspect of the present invention, a bearing assembly is provided. The bearing assembly includes:

[0006] The bearing comprises an outer ring, a middle ring, and an inner ring, wherein the outer ring is fitted onto the middle ring, the middle ring is fitted onto the inner ring, the outer ring and the middle ring can form a first bearing, and the middle ring and the inner ring can form a second bearing.

[0007] Among them, one of the first bearing and the second bearing is a radial bearing, and the other is a bearing with self-aligning function.

[0008] Optionally, a first rolling element is provided between the intermediate ring and the inner ring, and the intermediate ring and the inner ring can form a self-aligning bearing.

[0009] Optionally, the first rolling element includes a roller or a ball.

[0010] Optionally, the intermediate ring and the inner ring can form a spherical bearing.

[0011] Optionally, a second rolling element is provided between the outer ring and the intermediate ring, and the outer ring and the intermediate ring can form a radial bearing.

[0012] Optionally, the second rolling element includes a roller or a ball.

[0013] Optionally, the radial bearing is provided with a dust seal on at least one side along the axial direction.

[0014] According to a second aspect of the present invention, a roller mechanism is provided. This roller mechanism includes the bearing assembly described in the above embodiments.

[0015] Optionally, the roller mechanism includes a roller body, which is sleeved on the outer ring of the bearing assembly, or the inner ring of the bearing assembly is sleeved on the roller body.

[0016] According to a third aspect of the present invention, a winding device is provided. This winding device includes the roller mechanism described in the above embodiments.

[0017] According to a fourth aspect of the present invention, an evaporation coating apparatus is provided. This evaporation coating apparatus includes the winding device described in the above embodiments.

[0018] One technical advantage of this application is that the outer ring and the middle ring of the bearing assembly can form a first bearing, and the middle ring and the inner ring can form a second bearing. One of the first bearing and the second bearing is a radial bearing, and the other is a bearing with a self-aligning function. The radial bearing can be connected to the roller body to reduce the friction force when the roller body rotates and reduce heat generation. At the same time, the bearing assembly also has a self-aligning function to prevent the roller body from getting stuck.

[0019] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of a bearing assembly according to an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a bearing assembly according to an embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of a bearing assembly according to another embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional view of a bearing assembly according to another embodiment of the present invention.

[0025] Figure 5 This is a partial structural schematic diagram of a roller mechanism according to an embodiment of the present invention.

[0026] Figure 6 yes Figure 5 The roller mechanism is shown in sectional view AA.

[0027] Figure 7yes Figure 6 The enlarged view at point B is shown.

[0028] Figure 8 yes Figure 6 The enlarged view at point C is shown.

[0029] Figure label:

[0030] 1. Bearing assembly; 11. Outer ring; 12. Intermediate ring; 13. Inner ring; 14. First rolling element; 15. Second rolling element; 16. Dust seal; 17. First cage; 18. Second cage; 2. Roller mechanism; 21. Roller body; 22. Shaft; 23. Mounting base; 24. Locking assembly; 241. Locking block; 242. Clamping ring; 25. Pulley; 26. Mounting shaft. Detailed Implementation

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0034] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0036] According to one embodiment of this application, a bearing assembly is provided. For example... Figures 1 to 4 As shown, the bearing assembly 1 includes an outer ring 11, an intermediate ring 12, and an inner ring 13. The outer ring 11 is fitted onto the intermediate ring 12, and the intermediate ring 12 is fitted onto the inner ring 13. The outer ring 11 and the intermediate ring 12 can form a first bearing, and the intermediate ring 12 and the inner ring 13 can form a second bearing. One of the first bearing and the second bearing is a radial bearing, and the other is a bearing with self-aligning function.

[0037] In this example, the outer ring 11 and the middle ring 12 of the bearing assembly 1 can form a first bearing, and the middle ring 12 and the inner ring 13 can form a second bearing. One of the first bearing and the second bearing is a radial bearing, and the other is a bearing with a self-aligning function. The radial bearing can be connected to the roller body 21 to reduce the friction force when the roller body 21 rotates and reduce heat generation. At the same time, the bearing assembly 1 also has a self-aligning function to prevent the roller body 21 from getting stuck.

[0038] In this example, the first bearing can be a radial bearing, for example, a radial contact bearing. The roller body 21 can be sleeved on the outside of the first bearing. The second bearing has a self-aligning function; for example, the second bearing can be a self-aligning bearing, and the second bearing can be sleeved on the mounting shaft 26. The roller body 21 can slide smoothly through the first bearing, and the second bearing has a self-aligning function, thereby preventing the roller body 21 from getting stuck. Alternatively, the first bearing can be a self-aligning bearing, and the mounting shaft 26 can be sleeved on the outside of the first bearing. The second bearing is a radial bearing, and the second bearing is sleeved on the outside of the roller body 21.

[0039] In one example, such as Figure 2 and Figure 3 As shown, a first rolling element 14 is provided between the intermediate ring 12 and the inner ring 13, and the intermediate ring 12 and the inner ring 13 can form a self-aligning bearing.

[0040] like Figure 2 and Figure 3 As shown, in this example, the second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning bearing. The first bearing formed by the intermediate ring 12 and the outer ring 11 is a radial bearing. The bearing assembly 1 also includes a first rolling element 14, which is filled between the intermediate ring 12 and the inner ring 13 so that the intermediate ring 12 and the inner ring 13 can form a self-aligning bearing. The first rolling element 14 constitutes a double-row rolling element structure, and the inner wall of the intermediate ring 12 is a spherical raceway. The self-aligning bearing can automatically adjust to accommodate the angular error between the roller body 21 and the mounting shaft 26, ensuring normal bearing operation.

[0041] In one example, such as Figure 2 and Figure 3 As shown, the first rolling element 14 includes a roller or a ball.

[0042] like Figure 2As shown, in this example, the first rolling element 14 can be a roller, that is, the roller fills the space between the intermediate ring 12 and the inner ring 13. The second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning roller bearing. The second bearing has double rows of rollers, the inner wall of the intermediate ring 12 has a common spherical raceway, and the inner ring 13 has two raceways on its outer wall that are inclined at an angle relative to the axis. This structure gives the second bearing excellent self-aligning performance and enables it to withstand radial loads and bidirectional axial loads.

[0043] like Figure 3 As shown, in this example, the first rolling element 14 can be a ball bearing, that is, the ball bearing fills the space between the intermediate ring 12 and the inner ring 13. The second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning ball bearing. The outer wall of the inner ring 13 has two raceways, and the inner wall of the intermediate ring 12 has a spherical raceway. This second bearing can automatically align itself to compensate for errors caused by misalignment and shaft deflection.

[0044] like Figure 2 and Figure 3 As shown, in this example, the bearing assembly 1 also includes a first cage 17 located between the intermediate ring 12 and the inner ring 13. The first cage 17 enables the first rolling elements 14 to be evenly distributed, guides the rotation of the first rolling elements 14, and avoids friction between the first rolling elements 14.

[0045] In one example, such as Figure 4 As shown, the intermediate ring 12 and the inner ring 13 can form a spherical bearing.

[0046] like Figure 4 As shown, in this example, the first bearing formed by the outer ring 11 and the middle ring 12 is a radial bearing, and the second bearing formed by the middle ring 12 and the inner ring 13 is a spherical plain bearing. The spherical plain bearing can rotate and swing at any angle during movement, thus also having a self-aligning function. The contact surfaces of the middle ring 12 and the inner ring 13 that make up the spherical plain bearing are an outer spherical surface and an inner spherical surface, respectively, resulting in a relatively simple structure.

[0047] In one example, such as Figure 2 and Figure 3 As shown, a second rolling element 15 is provided between the outer ring 11 and the intermediate ring 12, and the outer ring 11 and the intermediate ring 12 can form a radial bearing.

[0048] like Figure 2 and Figure 3As shown, in this example, the first bearing formed by the intermediate ring 12 and the outer ring 11 is a radial bearing. The second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning bearing or a spherical plain bearing. The bearing assembly 1 also includes a second rolling element 15, which fills the space between the intermediate ring 12 and the outer ring 11 so that the intermediate ring 12 and the outer ring 11 can form a radial bearing.

[0049] In this example, the second rolling element 15 includes a roller or a ball. For example... Figure 2 As shown, the second rolling element 15 can be a ball bearing, that is, the ball bearing fills the space between the intermediate ring 12 and the outer ring 11. For example, the first bearing formed by the intermediate ring 12 and the outer ring 11 is a deep groove ball bearing, which can ensure the smooth rotation of the roller body 21, and the bearing has a simple structure and is easy to use.

[0050] Alternatively, the second rolling element 15 can also be a roller, that is, a roller fills the space between the intermediate ring 12 and the outer ring 11, and the first bearing formed by the intermediate ring 12 and the outer ring 11 is a cylindrical roller bearing. Alternatively, the first bearing can also be other types of rolling bearings, which can be determined by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0051] like Figures 2 to 4 As shown, in this example, the bearing assembly 1 also includes a second cage 18, which is located between the intermediate ring 12 and the outer ring 11. The second cage 18 enables the second rolling elements 15 to be evenly distributed, guides the rotation of the second rolling elements 15, and avoids friction between the second rolling elements 15.

[0052] In this example, the first bearing formed by the outer ring 11 and the middle ring 12 can be either a cylindrical roller bearing or a deep groove ball bearing. The second bearing formed by the middle ring 12 and the inner ring 13 can be either a self-aligning ball bearing, a self-aligning roller bearing, or a spherical plain bearing. For example, the first bearing can be a cylindrical roller bearing and the second bearing a self-aligning ball bearing; or, the first bearing can be a cylindrical roller bearing and the second bearing a self-aligning roller bearing; or, the first bearing can be a cylindrical roller bearing and the second bearing a spherical plain bearing; or, the first bearing can be a deep groove ball bearing and the second bearing a spherical plain bearing. Of course, the specific combination of the first and second bearings can be determined by those skilled in the art based on the actual situation, and no specific limitations are made here.

[0053] In one example, such as Figures 2 to 4 As shown, the radial bearing has a dustproof ring 16 on at least one side along the axial direction.

[0054] like Figures 2 to 4As shown, in this example, the intermediate ring 12 and the outer ring 11 form a radial bearing. The dust seal 16 is located between the intermediate ring 12 and the outer ring 11, and is situated on one side of the radial bearing along the axial direction. The dust seal 16 serves to prevent dust accumulation and also prevents internal lubricating oil leakage. The radial bearing may have dust seals 16 at both ends along the axial direction; this can be determined by those skilled in the art based on the actual situation, and no specific limitation is made here.

[0055] According to another embodiment of the present invention, a roller mechanism 2 is provided. For example... Figures 1 to 8 As shown, the roller mechanism 2 includes the bearing assembly 1 described in the above embodiment. The bearing assembly 1 includes an outer ring 11, an intermediate ring 12, and an inner ring 13. The outer ring 11 is fitted onto the intermediate ring 12, and the intermediate ring 12 is fitted onto the inner ring 13. The outer ring 11 and the intermediate ring 12 form a first bearing, and the intermediate ring 12 and the inner ring 13 form a second bearing. One of the first bearing and the second bearing is a radial bearing, and the other is a bearing with a self-aligning function. The radial bearing can be connected to the roller body 21 to reduce friction and heat generation during roller body 21 rotation. Simultaneously, the bearing assembly 1 also has a self-aligning function to prevent the roller body 21 from jamming.

[0056] In one example, the roller mechanism 2 includes a roller body 21, which is fitted onto the outer ring 11 of the bearing assembly 1, or the inner ring 13 of the bearing assembly 1 is fitted onto the roller body 21.

[0057] like Figures 5 to 7 As shown, in this example, the first bearing formed by the outer ring 11 and the intermediate ring 12 of the bearing assembly 1 is a radial bearing, and the second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning bearing. The roller body 21 can be hollow. One side of the roller body 21 along the axial direction can be sleeved onto the outer ring 11 and fixed relative to the outer ring 11. The mounting shaft 26 passes through the inner ring 13 and is fixedly connected relative to the inner ring 13. The roller body 21 is rotatably connected to the mounting shaft 26 through the bearing assembly 1 of this application, thereby reducing the friction force when the roller body 21 rotates, reducing heat generation, and the bearing assembly 1 also has an automatic self-aligning function to ensure that the roller body 21 can rotate smoothly.

[0058] In this example, the roller mechanism 2 also includes a rotating shaft 22 and a mounting base 23. The rotating shaft 22 is rotatably mounted on the mounting base 23. The end of the roller body 21 facing away from the mounting shaft 26 can be rotatably connected to the rotating shaft 22. That is, the rotating shaft 22 can rotate relative to the mounting base 23, and the roller body 21 can rotate relative to the rotating shaft 22. For example, the roller body 21 can be a guide roller on which the film is wound. During unwinding or rewinding, the film can drive the roller body 21 to rotate relative to the rotating shaft 22, and the roller body 21 will also drive the rotating shaft 22 to rotate relative to the mounting base 23, increasing the flexibility of the roller body 21 and reducing the tension on the film caused by the roller body 21.

[0059] In this example, the roller 21 can be rotatably connected to the rotating shaft 22 via the bearing assembly 1. Specifically, the first bearing formed by the outer ring 11 and the intermediate ring 12 of the bearing assembly 1 is a radial bearing, and the second bearing formed by the intermediate ring 12 and the inner ring 13 is a self-aligning bearing. The roller 21 can be hollow. One axial side of the roller 21 can be fitted onto the outer ring 11 and fixed relative to it. The rotating shaft 22 passes through the inner ring 13 and is fixedly connected relative to it. This further reduces the frictional force during the rotation of the roller 21, reduces heat generation, and the bearing assembly 1 also has an automatic self-aligning function to ensure smooth rotation of the roller 21.

[0060] The rotating shaft 22 and the mounting base 23 can also be rotatably connected via rolling bearings. Since bearings have a certain mechanical efficiency, the rotating shaft 22 will also rotate, increasing the flexibility of the roller body 21. For example, if the bearing assembly 1 between the roller body 21 and the rotating shaft 22 jams undetected during equipment operation, the rotating shaft 22 will rotate relative to the mounting base 23, thereby mitigating the problems caused by jamming between the roller body 21 and the rotating shaft 22.

[0061] In one example, such as Figure 6 and Figure 8 As shown, the rotating shaft 22 is rotatably connected to the mounting base 23 via rolling bearings. The rotating shaft 22 and the roller 21 can be locked together by a locking assembly 24 to fix them relatively in place. A pulley 25 is fixedly mounted on the rotating shaft 22, and a drive belt can be fitted onto the pulley 25. The drive unit can drive the pulley 25 to rotate via the drive belt, thereby driving the rotating shaft 22 to rotate, which in turn drives the roller 21 to rotate. During unwinding or rewinding, the film is wound around the roller 21. Because the roller 21 can rotate actively under the drive of the rotating shaft 22, the roller 21 does not cause tension on the film. Before operation, the rotation speed of the roller 21 driven by the rotating shaft 22 needs to be adjusted to match the unwinding or rewinding speed.

[0062] The driving component can be a motor, such as a stepper motor or other driving structure. Those skilled in the art can determine the specific type of driving component based on the actual situation, and no specific limitation is made here.

[0063] like Figure 6 and Figure 8 As shown, in this example, the locking assembly 24 includes a locking block 241, which can be connected to the roller body 21 and the rotating shaft 22 respectively, so that the roller body 21 can be fixed relative to the rotating shaft 22. By fixing the locking block 241 to the outer periphery of the rotating shaft 22 and then fixing the locking block 241 to the roller body 21, the rotating shaft 22 and the roller body 21 can be locked, so that the rotating shaft 22 and the roller body 21 remain in a relatively fixed state. The locking block 241 can be fixedly fitted to the rotating shaft 22 and then screwed to one end of the roller body 21 by fasteners such as screws or bolts, thereby locking the rotating shaft 22 and the roller body 21. Of course, the specific structure of the locking block 241 can be determined by those skilled in the art according to the actual situation, and is not specifically limited here.

[0064] In this example, the locking assembly 24 also includes a clamping ring 242, which is sleeved on the rotating shaft 22, and a locking block 241 is sleeved on the clamping ring 242. The clamping ring 242 is fixedly sleeved on the outer periphery of the rotating shaft 22, and the locking block 241 is then fixedly sleeved on the outer periphery of the clamping ring 242. This prevents the locking block 241 from crushing or scratching the rotating shaft 22, and the clamping ring 242 can increase the friction between the locking block 241 and the rotating shaft 22, thereby locking the rotating shaft 22 and the roller 21 more stably. The clamping ring 242 can be made of materials such as nylon or polytetrafluoroethylene, or it can be made of metal materials such as stainless steel. Those skilled in the art can determine the material according to the actual situation, and no specific limitation is made here.

[0065] It should be noted that after the locking assembly 24 is removed, the roller body 21 can rotate relative to the rotating shaft 22. The locking assembly 24 is installed on the rotating shaft 22 and the roller body 21, with the rotating shaft 22 fixed relative to the roller body 21. Of course, the mounting shaft 26 can also be set as a rotatable shaft or a fixed shaft. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0066] According to another embodiment of the present invention, a winding device is provided. The winding device includes the roller mechanism 2 described above.

[0067] The roller mechanism 2 can be a winding roller mechanism, a take-up roller mechanism, or an unwinding roller mechanism, etc. Those skilled in the art can determine this according to the actual situation, and no specific limitations are made here.

[0068] According to another embodiment of the present invention, an evaporation coating apparatus is provided. This evaporation coating apparatus includes the winding device described in the above embodiment.

[0069] In this example, the evaporation coating equipment includes a cavity and a cover plate. A winding device is installed on one side of the cover plate, and an evaporation boat is disposed inside the cavity. The cover plate can drive the winding device into the cavity and can seal the opening end of the cavity. The film is wound on a take-up roller, an unwind roller, and a guide roller, and evaporation coating can be performed on the surface of the film inside the cavity.

[0070] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0071] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A bearing assembly, characterized in that, include: The bearing comprises an outer ring, a middle ring, and an inner ring, wherein the outer ring is fitted onto the middle ring, the middle ring is fitted onto the inner ring, the outer ring and the middle ring can form a first bearing, and the middle ring and the inner ring can form a second bearing. Among them, one of the first bearing and the second bearing is a radial bearing, and the other is a bearing with self-aligning function.

2. The bearing assembly according to claim 1, characterized in that, A first rolling element is provided between the intermediate ring and the inner ring, and the intermediate ring and the inner ring can form a self-aligning bearing.

3. The bearing assembly according to claim 2, characterized in that, The first rolling element includes a roller or a ball.

4. The bearing assembly according to claim 1, characterized in that, The intermediate ring and the inner ring can form a spherical bearing.

5. The bearing assembly according to claim 1, characterized in that, A second rolling element is provided between the outer ring and the intermediate ring, and the outer ring and the intermediate ring can form a radial bearing.

6. The bearing assembly according to claim 5, characterized in that, The second rolling element includes a roller or a ball.

7. The bearing assembly according to claim 1, characterized in that, The radial bearing is provided with a dustproof ring on at least one side along the axial direction.

8. A roller mechanism, characterized in that, Includes the bearing assembly as described in any one of claims 1 to 7.

9. The roller mechanism according to claim 8, characterized in that, The roller mechanism includes a roller body, which is sleeved on the outer ring of the bearing assembly, or the inner ring of the bearing assembly is sleeved on the roller body.

10. A winding device, characterized in that, Includes the roller mechanism as described in claim 8 or 9.

11. An evaporation coating apparatus, characterized in that, The evaporation coating equipment includes the winding device as described in claim 10.

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