Movable disc

Abstract

The utility model discloses a movable disc which comprises a bottom plate and a molded line arranged on one side of the bottom plate, a bearing hole is formed in the other side of the bottom plate, the circle center of a generating circle of the molded line and the circle center of the bearing hole are concentrically arranged, and the mass center of the bottom plate and the mass center of the molded line are located on the two sides of the circle center of the bearing hole respectively. The mass center of the movable disc and the mass center of the molded line are arranged on the two sides of the bearing hole correspondingly, the mass center of the molded line is balanced through the eccentric arrangement, in addition, the mass center of the molded line can be balanced through the heat dissipation part and the cross-shaped sliding groove which are eccentrically arranged, and then the mass center of the movable disc can be conveniently adjusted to the circle center of the bearing hole.

Description

Technical Field

[0001] The utility model relates to the field of oil-free lubrication scroll air compressors, in particular to a moving disc. Background Art

[0002] The performance of oil-free scroll air compressor is greatly affected by heat. Therefore, when designing the dynamic and static disks, the wall thickness is made as thin as possible to reduce thermal resistance while ensuring the structural strength of the parts. If necessary, some heat dissipation ribs can be added to ensure the strength of the parts when the parts are made thin and increase the heat exchange area. If the heat dissipation conditions are not very good at this time, a cooling fan will be added externally. The unobstructed heat dissipation flow channel is also an effective way to increase the heat dissipation efficiency.

[0003] The center of mass adjustment method mentioned in patent CN115342055A is used in most scroll refrigeration compressors on the market. The base plate is relatively thick, and the center of mass adjustment is achieved by cutting the material at the corresponding position of the base plate. This method is suitable for closed scroll refrigeration compressors.

[0004] The moving disk mentioned in patent CN202311044139.1 is used in oil-free scroll compressors with a cross-slip ring structure. Its center of mass adjustment is mainly achieved by increasing the radial size of the base plate and adding a sector-shaped mass in the opposite direction of the original center of mass to adjust the center of mass to the driving center position. Its advantages are relatively long lever arms and small added weight. However, it will make the moving disk structure irregular, increase the diameter of the moving disk, and at the same time, the bosses for the installation of the static disk and the bracket need to avoid the moving area of ​​the sector, which adds some considerations to the design.

[0005] The center of mass optimization method in patent CN202211654966.8 is mainly used in refrigeration compressors. It is different from the optimization method in this case by eccentrically arranging the cross ring slide and opening a weight-reducing groove on the outside of the profile that does not participate in the meshing. Utility Model Content

[0006] The purpose of the utility model is to provide a moving plate to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A moving plate comprises a base plate and a profile arranged on one side of the base plate, a bearing hole is arranged on the other side of the base plate, the center of the generating circle of the profile is concentrically arranged with the center of the bearing hole, and the centroid of the base plate and the profile centroid of the profile are respectively located on both sides of the center of the bearing hole.

[0009] As a further solution of the utility model: the bottom plate is a circular structure, and the center of the bottom plate is eccentrically arranged with respect to the center of the bearing hole.

[0010] As a further solution of the utility model: a heat dissipation portion is provided on one side of the bearing hole of the bottom plate, and the heat dissipation portion is located outside the bearing hole.

[0011] As a further solution of the utility model: the centroid of the heat dissipation part is located on the side of the center of the bearing hole away from the centroid of the profile line, and the centroid of the overall dynamic disk structure formed by the heat dissipation part, the bottom plate and the profile line is arranged concentrically with the center of the bearing hole.

[0012] As a further solution of the utility model: the heat dissipation part includes a first heat dissipation rib and a second heat dissipation rib, the first heat dissipation rib is symmetrically arranged, and the second heat dissipation rib is symmetrically arranged.

[0013] As a further solution of the utility model: the first heat dissipation rib is located on the bottom plate at a side close to the centroid of the profile line, and the second heat dissipation rib is located at a side away from the first heat dissipation rib.

[0014] As a further solution of the utility model: the bearing hole is a blind hole structure, a bearing platform is provided on the outside of the bearing hole, a gap is provided between the end of the first heat dissipation rib close to the bearing platform and the bearing platform, and the end of the second heat dissipation rib close to the bearing platform is arranged in contact with the bearing platform.

[0015] As a further solution of the utility model: cross slide grooves are provided on both sides of the base plate, the cross slide grooves are located between the first heat dissipation ribs and the second heat dissipation ribs, and the adjacent heat dissipation ribs of the first heat dissipation ribs and the second heat dissipation ribs close to the cross slide grooves are connected by third heat dissipation ribs.

[0016] As a further solution of the utility model: the first heat dissipation rib and the second heat dissipation rib are arranged perpendicular to the cross slide groove.

[0017] As a further solution of the utility model: the centroid of the cross slide is located on the side of the center of the bearing hole away from the centroid of the profile.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. In the present application, the centroid of the moving disk and the centroid of the profile are respectively arranged on both sides of the bearing hole. The centroid of the profile is balanced by this eccentric arrangement. In addition, the centroid of the profile can be balanced by the eccentrically arranged heat dissipation part and the cross slide, so that the centroid of the moving disk can be conveniently adjusted to the center of the bearing hole.

[0020] 2. The present application adjusts the center of mass of the moving disk by eccentrically arranging the bottom plate, the heat dissipation part, and the cross slide, so there is no need to add or subtract too much material, thereby reducing the overall mass of the moving disk while ensuring the overall strength of the moving disk;

[0021] 3. The base plate of the present application does not need to be increased or decreased in material, so the base plate can be set to be thinner, thereby reducing the thermal resistance of the base plate and improving the heat dissipation performance of the dynamic disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the moving disk profile side of this embodiment;

[0023] Figure 2 This is the front view of the moving disk of this embodiment;

[0024] Figure 3 It is a schematic diagram of the structure of the moving disk bearing side of this embodiment.

[0025] In the figure: 1-bottom plate, 2-profile, 3-center of mass of profile, 4-first heat dissipation rib, 5-second heat dissipation rib, 6-third heat dissipation rib, 7-center of shaft hole, 8-cross slide groove, 9-bearing stand, 10-bearing hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 In an embodiment of the utility model, a moving disk comprises a base plate 1 and a profile line 2 arranged on one side of the base plate 1, a bearing hole 10 is arranged on the other side of the base plate 1, and the bearing hole 10 is a blind hole structure. A bearing platform 9 is arranged on the outer side of the bearing hole 10, and a heat dissipation portion is arranged on one side of the bearing hole 10 of the base plate 1, and the heat dissipation portion is located outside the bearing hole 10, and the heat dissipation portion comprises a first heat dissipation rib 4 and a second heat dissipation rib 5. The first heat dissipation rib 4 is symmetrically arranged, and the second heat dissipation rib 5 is symmetrically arranged. The first heat dissipation rib 4 is located on the base plate 1 on the side close to the profile line centroid 3, and the second heat dissipation rib 5 is located on the side away from the first heat dissipation rib 4. The first heat dissipation rib 4 is provided with a plurality of and arranged in parallel, and a gap is provided between the end of the first heat dissipation rib 4 close to the bearing platform 9 and the bearing platform 9, so that when the fan actively dissipates heat, the smoothness of air flow can be guaranteed, which is conducive to heat dissipation; the second heat dissipation rib 5 is provided with a plurality of and arranged in parallel, and the end of the second heat dissipation rib close to the bearing platform 9 is arranged in contact with the bearing platform 9.

[0028] A cross slide 8 is provided on both sides of the base plate 1, and the cross slide 8 is located between the first heat dissipation rib 4 and the second heat dissipation rib 5. The adjacent heat dissipation ribs of the first heat dissipation rib 4 and the second heat dissipation rib 5 close to the cross slide 8 are connected by the third heat dissipation rib 6, and the first heat dissipation rib 4 and the second heat dissipation rib 5 are arranged vertically to the cross slide 8.

[0029] The center of the generating circle of the profile 2 is arranged concentrically with the center of the bearing hole 10, so that the radial force of the gas can always point to the center of the base circle in the radial direction to ensure the stability of the direction of the gas force. The bottom plate 1 is a circular structure, and the center of the bottom plate 1 is eccentrically arranged with the center of the bearing hole 10. The center of mass of the bottom plate 1 and the center of mass 3 of the profile 2 are respectively located on both sides of the center of the bearing hole 10. The center of mass of the heat dissipation part is located on the side of the center of the bearing hole 10 away from the center of mass 3 of the profile, and the center of mass of the cross slide 8 is located at the bearing hole 1 0 is on the side where the center of the circle is away from the centroid 3 of the molded line, and the centroid of the overall moving disk structure formed by the heat dissipation part, the base plate 1, the molded line 2, and the cross slide 8 is arranged concentrically with the center of the circle of the bearing hole 10, that is, by setting the centroid of the base plate 1, the heat dissipation part, and the cross slide on one side of the center of the circle of the bearing hole 10, the molded line centroid 3 is located on the other side, and then the centroid of the base plate 1, the heat dissipation part, and the cross slide can be balanced by the molded line centroid 3, so that the centroid of the entire moving disk is concentric with the center of the circle of the bearing hole 10.

[0030] The base plate 1 of the movable disk of this embodiment is eccentrically arranged with the bearing hole 10, and the mass of the base plate 1 can be used to balance the mass of the profile. In addition, the heat dissipation part and the cross slide groove can be added to balance the straight line of the profile, and finally the overall center of mass of the movable disk is adjusted to the center position of the bearing hole. Since there is no need to add or subtract material on the base plate 1 to balance the mass, the thickness of the base plate can be reduced, the thermal resistance of the base plate can be reduced, and the heat dissipation performance of the base plate can be increased. In addition, the first heat dissipation rib 4 and the second heat dissipation rib 5 are connected to the side wall of the cross slide groove 8 near the cross slide groove 8, and the third heat dissipation rib 6 is arranged between the ends of the adjacent heat dissipation ribs near the cross slide groove 8, and the third heat dissipation rib 6 can also serve as a part of the cross slide groove 8, that is, the heat dissipation rib strengthens the slide groove, reduces the wall thickness of the slide table, and reduces the overall mass of the movable disk.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A moving plate, comprising a bottom plate (1) and a profile (2) arranged on one side of the bottom plate (1), wherein a bearing hole (10) is arranged on the other side of the bottom plate (1), characterized in that: The center of the generating circle of the profile line (2) is arranged concentrically with the center of the bearing hole (10), and the center of mass of the base plate (1) and the profile center of mass (3) of the profile line (2) are respectively located on both sides of the center of the bearing hole (10).

2. A moving plate according to claim 1, characterized in that: The bottom plate (1) is a circular structure, and the center of the bottom plate (1) and the center of the bearing hole (10) are arranged eccentrically.

3. A moving plate according to claim 1, characterized in that: A heat dissipation portion is provided on one side of the bearing hole (10) of the bottom plate (1), and the heat dissipation portion is located outside the bearing hole (10).

4. A moving plate according to claim 3, characterized in that: The centroid of the heat dissipation portion is located on a side of the center of the bearing hole (10) away from the centroid of the profile line (3), and the centroid of the integral moving disk structure formed by the heat dissipation portion, the bottom plate (1) and the profile line (2) is arranged concentrically with the center of the bearing hole (10).

5. A moving plate according to claim 4, characterized in that: The heat dissipation portion comprises a first heat dissipation rib (4) and a second heat dissipation rib (5); the first heat dissipation rib (4) is symmetrically arranged, and the second heat dissipation rib (5) is symmetrically arranged.

6. A moving plate according to claim 5, characterized in that: The first heat dissipation rib (4) is located on a side of the bottom plate (1) close to the centroid (3) of the profile line, and the second heat dissipation rib (5) is located on a side away from the first heat dissipation rib (4).

7. A moving plate according to claim 5, characterized in that: The bearing hole (10) is a blind hole structure, a bearing platform (9) is provided on the outer side of the bearing hole (10), a gap is provided between the end of the first heat dissipation rib (4) close to the bearing platform (9) and the bearing platform (9), and the end of the second heat dissipation rib (4) close to the bearing platform (9) is arranged in contact with the bearing platform (9).

8. A moving plate according to claim 5, characterized in that: A cross slide (8) is provided on both sides of the bottom plate (1), the cross slide (8) is located between the first heat dissipation rib (4) and the second heat dissipation rib (5), and adjacent heat dissipation ribs of the first heat dissipation rib (4) and the second heat dissipation rib (5) close to the cross slide (8) are connected via a third heat dissipation rib (6).

9. A moving plate according to claim 8, characterized in that: The first heat dissipation rib (4), the second heat dissipation rib (5), and the first heat dissipation rib (4), the second heat dissipation rib (5) are arranged perpendicular to the cross slide groove (8).

10. A moving plate according to claim 8, characterized in that: The centroid of the cross slide (8) is located on the side of the center of the bearing hole (10) away from the centroid of the profile (3).

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