Bearing protection device for helium compressor

Abstract

This utility model provides a bearing protection device for a helium compressor, belonging to the field of bearing protection devices. It solves the problem that existing devices involve cumbersome and inconvenient adjustments to the shaft within the internal cavity, and sometimes even prevent adjustments to the shaft and bearing positions during protection. The bearing protection device for a helium compressor includes a bottom support, an upper support, a lifting structure, clamping claws, an adjusting structure, a flange sleeve, an upper flange buckle, and a lower flange buckle. The upper support is located above the bottom support; the lifting structure is located between the bottom and upper supports and can adjust the distance between them; the adjusting structure can adjust the horizontal and vertical positions of the clamping claws within the upper support; the clamping claws can clamp one end of the flange sleeve; both the upper and lower flange buckles are detachably connected to the other end of the flange sleeve. This allows for adjustment of the shaft and bearing positions during bearing protection.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing protection devices, and in particular relates to a bearing protection device for a helium compressor. Background Technology

[0002] As a precision nuclear power device, the helium compressor uses electromagnetic levitation bearings. The shaft is in a suspended state when it is running to ensure its rotational accuracy. However, when the machine is stopped or during transportation, the shaft will naturally fall onto the auxiliary bearing. In order to protect the bearing, a bearing protection device is required. In practical use, existing bearing protection devices typically fix both the shaft and the bearing position directly. However, during the protection process, the bearing position often needs to be changed, requiring fine-tuning to suit the specific situation. Any deviation not only results in poor bearing protection but may also cause bearing damage. Furthermore, the existing bearing protection devices involve cumbersome and inconvenient adjustments to the shaft within the internal cavity, and sometimes even prevent the adjustment of the shaft and bearing position during the protection process. Utility Model Content

[0003] In view of this, in order to solve the problem that the existing bearing protection device is cumbersome and troublesome to adjust the shaft in the inner cavity during use, and even cannot adjust the position of the shaft and bearing during the protection process, this utility model proposes a bearing protection device for a helium compressor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A bearing protection device for a helium compressor, comprising: Bottom support; The upper support is located above the lower support. The lifting structure is located between the bottom support and the upper support, and can adjust the distance between the upper support and the bottom support. The clamping jaws and the adjusting structure allow for adjustment of the position of the clamping jaws within the upper support in both the horizontal and vertical directions. Flange sleeve, the clamping claws can clamp one end of the flange sleeve; Both the upper and lower flanges can be detachably connected to the other end of the flange sleeve.

[0005] As a preferred embodiment of the bearing protection device for the helium compressor, the bottom support includes a support frame and a base, with the support frame fixedly mounted above the base, and the base being arc-shaped.

[0006] As a preferred embodiment of the bearing protection device for the aforementioned helium compressor, the lifting structure includes a cylindrical pin, an upper tube, and a lower tube. The upper tube is fixedly connected to an upper support, and the lower tube is fixedly connected to a bottom support. The lower tube slides through the upper tube. The upper tube has multiple first pin holes along the vertical direction, and the lower tube has multiple second pin holes along the vertical direction. The cylindrical pin passes through one of the first pin holes and one of the second pin holes.

[0007] As a preferred embodiment of the bearing protection device for the aforementioned helium compressor, the upper and lower tubes have rectangular cross-sections.

[0008] As a preferred embodiment of the bearing protection device for the helium compressor described above, the upper support is a rectangular frame.

[0009] As a preferred embodiment of the bearing protection device for the helium compressor, the clamping claw includes an upper arm, a lower arm, and a side arm. The upper arm and the lower arm are spaced apart in the vertical direction, and the two ends of the side arm are fixedly connected to the upper arm and the lower arm, respectively. The flange sleeve is clamped between the upper arm, the lower arm, and the side arm.

[0010] As a preferred embodiment of the bearing protection device for the helium compressor, the adjustment structure includes a first set screw, a second set screw, and a third set screw. The upper end, lower end, and side of the upper support are respectively provided with a first set screw hole, a second set screw hole, and a third set screw hole. The first set screw is screwed into the first set screw hole and abuts against the upper arm of the clamping claw. The second set screw is screwed into the second set screw hole and abuts against the lower arm of the clamping claw. The third set screw is screwed into the third set screw hole and abuts against the side arm of the clamping claw.

[0011] As a preferred embodiment of the bearing protection device for the helium compressor, there are two first set screws and two first set screw holes, with the two first set screws respectively screwed into the two first set screw holes; there are two second set screws and two second set screw holes, with the two second set screws respectively screwed into the two second set screw holes.

[0012] As a preferred embodiment of the bearing protection device for the helium compressor, both the upper flange and the lower flange are connected to the flange sleeve by the first bolt.

[0013] As a preferred embodiment of the bearing protection device for the helium compressor described above, the upper flange and the lower flange are connected by a second bolt.

[0014] Compared with the prior art, the beneficial effects of the bearing protection device for a helium compressor provided by this utility model are: This invention provides a bearing protection device for a helium compressor. The device has a bottom support bracket inside the compressor cavity. A lifting structure allows for a wide vertical lifting range, adjusting the vertical distance between the upper and lower supports. The clamping jaws are confined within the upper support by an adjusting structure, which also allows for small-range adjustment of the jaws' vertical and horizontal positions. Upper and lower flanges are mounted on the shaft to restrict bearing displacement. These flanges are connected to the clamping jaws via flange sleeves. The adjusting structure adjusts the position of the clamping jaws, thereby adjusting the bearing position. This bearing protection device for a helium compressor allows for adjustment of the vertical and horizontal positions of the shaft and bearing during bearing protection, solving the problem of cumbersome and inconvenient adjustments within the compressor cavity. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the structure of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model; Figure 2 This is a rear view of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model; Figure 3 This is a schematic diagram of the flange sleeve, upper flange buckle, and lower flange buckle of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model; Figure 4 This is a schematic diagram of the upper support of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model; Figure 5 This is a schematic diagram of the bottom support of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model; Figure 6 This is a schematic diagram of the clamping claw of the bearing protection device for a helium compressor provided in a specific embodiment of this utility model.

[0016] In the picture: 1. Bottom support; 2. Upper support; 31. Upper tube body; 32. Lower tube body; 33. Cylindrical pin; 4. Lower flange fastener; 5. Second bolt; 6. First bolt; 7. Upper flange fastener; 8. Flange sleeve; 9. Clamping claw; 10. Second set screw; 11. First set screw; 12. Third set screw. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] See Figure 1-6This invention provides a bearing protection device for a helium compressor. The device includes a bottom support 1, an upper support 2, a lifting structure, a clamping claw 9, an adjusting structure, a flange sleeve 8, an upper flange buckle 7, and a lower flange buckle 4. The upper support 2 is located above the bottom support 1. The lifting structure is located between the bottom support 1 and the upper support 2 and can adjust the distance between them. The adjusting structure can adjust the position of the clamping claw 9 within the upper support 2 in both the horizontal and vertical directions. The clamping claw 9 can clamp one end of the flange sleeve 8. Both the upper flange buckle 7 and the lower flange buckle 4 are detachably connected to the other end of the flange sleeve 8.

[0022] This helium compressor uses a bearing protection device. The bottom bracket 1 is supported within the compressor cavity. The lifting structure has a wide vertical lifting range, adjusting the vertical distance between the upper bracket 2 and the bottom bracket 1. The clamping claw 9 is confined within the upper bracket 2 by an adjusting structure, which can also adjust the vertical and horizontal positions of the clamping claw 9 within a smaller range. The upper flange 7 and lower flange 4 are installed on the shaft to restrict bearing displacement. The upper flange 7 and lower flange are connected to the clamping claw 9 via a flange sleeve 8. Adjusting the position of the clamping claw 9 through the adjusting structure allows for adjustment of the bearing position. This bearing protection device for the helium compressor allows for adjustment of the vertical and horizontal positions of the shaft and bearing, solving the problem of cumbersome and inconvenient adjustments to the shaft and bearing within the internal cavity.

[0023] Optionally, the bottom support 1 includes a support frame and a base, with the support frame fixedly disposed above the base, and the base being arc-shaped. The bottom of the bottom support 1 has an arc-shaped base that conforms to the inner wall of the cavity, ensuring the stability of the overall structure within the cavity.

[0024] Optionally, the lifting structure includes a cylindrical pin 33, an upper tube 31, and a lower tube 32. The upper tube 31 is fixedly connected to the upper support 2, and the lower tube 32 is fixedly connected to the bottom support 1. The lower tube 32 slides through the upper tube 31. The upper tube 31 has multiple first pin holes along the vertical direction, and the lower tube 32 has multiple second pin holes along the vertical direction. The cylindrical pin 33 passes through one of the first pin holes and one of the second pin holes. The cylindrical pin 33 passing through different first and second pin holes facilitates a wide range of vertical lifting functions.

[0025] In this embodiment, the upper tube 31 and the lower tube 32 have rectangular cross-sections. In other embodiments, the upper tube 31 and the lower tube 32 have circular cross-sections.

[0026] In this embodiment, the upper support 2 is a rectangular frame.

[0027] Optionally, the clamping claw 9 includes an upper arm, a lower arm, and a side arm. The upper arm and lower arm are spaced apart vertically, and the two ends of the side arm are fixedly connected to the upper arm and lower arm, respectively. The flange sleeve 8 is clamped between the upper arm, lower arm, and side arm. The upper arm, lower arm, and side arm form a clamping opening, and the flange sleeve 8 contacts the clamping opening of the clamping claw 9 on three sides. This facilitates the clamping claw 9 in clamping the flange sleeve 8 and makes installation convenient.

[0028] Optionally, the adjustment structure includes a first setter screw 11, a second setter screw 10, and a third setter screw 12. The upper support 2 has a first setter screw hole, a second setter screw hole, and a third setter screw hole at its upper end, lower end, and side, respectively. The first setter screw 11 is screwed into the first setter screw hole and abuts against the upper arm of the clamping claw 9. The second setter screw 10 is screwed into the second setter screw hole and abuts against the lower arm of the clamping claw 9. The third setter screw 12 is screwed into the third setter screw hole and abuts against the side arm of the clamping claw 9. The first setter screw 11 and the second setter screw 10 can control the clamping claw 9 to move within a small range in the vertical direction, while the third setter screw 12 can control the movement of the clamping claw 9 in the horizontal direction. The first setter screw 11, the second setter screw 10, and the third setter screw 12 can conveniently adjust the position of the clamping claw 9 within a small range, thereby adjusting the bearing position.

[0029] Optionally, there are two first set screws 11 and two first set screw holes, and the two first set screws 11 are screwed into the two first set screw holes respectively. There are two second set screws 10 and two second set screw holes, and the two second set screws 10 are screwed into the two second set screw holes respectively.

[0030] Optionally, both the upper flange buckle 7 and the lower flange buckle 4 are connected to the flange sleeve 8 by the first bolt 6.

[0031] Optionally, the upper flange buckle 7 and the lower flange buckle 4 are connected by a second bolt 5.

[0032] The working principle of the bearing protection device for the helium compressor is as follows: When the bearing position needs to be adjusted, the arc-shaped base of the bottom bracket 1 is fitted against the inner wall of the cavity. The positions of the first pin hole and the corresponding second pin hole in the lifting structure are adjusted, and cylindrical pins 33 are inserted through the first and second pin holes respectively for fixation, thereby limiting the vertical distance between the upper bracket 2 and the bottom bracket 1. The clamping claw 9 and the upper bracket 2 are connected by the first set screw 11, the second set screw 10 and the third set screw 12, and then the flange sleeve 8 is placed into the cavity. The clamping jaws 9 are inserted into the clamping openings of the clamping claws 9. Subsequently, the upper flange buckle 7 and the lower flange buckle 4 are respectively wrapped around the upper and lower parts of the desired position. Then, the upper flange buckle 7 and the lower flange buckle 4 are fixed with bolts and connected to the flange sleeve 8 with bolts. Thus, the first set screw 11, the second set screw 10 and the third set screw 12 adjust the horizontal and vertical positions of the clamping claws 9, thereby adjusting the positions of the flange sleeve 8, the upper flange buckle 7 and the lower flange buckle 4, which facilitates the position adjustment of the bearing and the adjustment of the bearing position during the protection of the bearing.

[0033] Obviously, the above-disclosed embodiments of the present invention are merely for illustrating the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to only the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. It is neither necessary nor possible to exhaustively list all embodiments here.

Claims

1. A bearing protection device for a helium compressor, characterized in that include: Bottom support (1); The upper support (2) is located above the lower support (1); The lifting structure is located between the bottom support (1) and the upper support (2), and can adjust the distance between the upper support (2) and the bottom support (1). The clamping claw (9) and the adjusting structure can adjust the position of the clamping claw (9) in the horizontal and vertical directions within the upper bracket (2); The flange sleeve (8) has a clamping claw (9) that can clamp one end of the flange sleeve (8); Both the upper flange buckle (7) and the lower flange buckle (4) can be detachably connected to the other end of the flange sleeve (8).

2. The bearing protection device for helium compressors according to claim 1, characterized in that: The bottom support (1) includes a support frame and a base. The support frame is fixedly installed above the base, and the base is arc-shaped.

3. The bearing protection device for helium compressors according to claim 1, characterized in that: The lifting structure includes a cylindrical pin (33), an upper tube (31) and a lower tube (32). The upper tube (31) is fixedly connected to the upper support (2), and the lower tube (32) is fixedly connected to the bottom support (1). The lower tube (32) slides through the upper tube (31). The upper tube (31) has multiple first pin holes in the vertical direction, and the lower tube (32) has multiple second pin holes in the vertical direction. The cylindrical pin (33) passes through one of the first pin holes and one of the second pin holes.

4. The bearing protection device for helium compressors according to claim 3, characterized in that: The upper tube (31) and the lower tube (32) have rectangular cross-sections.

5. The bearing protector device for helium compressors according to claim 1, characterized in that: The upper support (2) is a rectangular frame.

6. The bearing protection device for helium compressors of claim 1, wherein: The clamping claw (9) includes an upper arm, a lower arm, and a side arm. The upper arm and the lower arm are spaced apart in the vertical direction. The two ends of the side arm are fixedly connected to the upper arm and the lower arm, respectively. The flange sleeve (8) is clamped between the upper arm, the lower arm, and the side arm.

7. The bearing protection device for helium compressors according to claim 6, characterized in that: The adjustment structure includes a first set screw (11), a second set screw (10), and a third set screw (12). The upper end of the upper support (2) is provided with a first set screw hole, a second set screw hole, and a third set screw hole at its upper end, lower end, and side, respectively. The first set screw (11) is screwed into the first set screw hole and abuts against the upper arm of the clamping claw (9). The second set screw (10) is screwed into the second set screw hole and abuts against the lower arm of the clamping claw (9). The third set screw (12) is screwed into the third set screw hole and abuts against the side arm of the clamping claw (9).

8. The bearing protection device for helium compressors according to claim 7, characterized in that: There are two first set screws (11) and two first set screw holes. The two first set screws (11) are screwed into the two first set screw holes respectively. There are two second set screws (10) and two second set screw holes respectively. The two second set screws (10) are screwed into the two second set screw holes respectively.

9. The bearing protector device for helium compressors of claim 1, wherein: Both the upper flange (7) and the lower flange (4) are connected to the flange sleeve (8) by the first bolt (6).

10. The bearing protector device for helium compressors of claim 1, wherein: The upper flange (7) and the lower flange (4) are connected by a second bolt (5).

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