Blade diffuser adjusting mechanism

Abstract

The utility model discloses a blade diffuser adjusting mechanism, and relates to the technical field of diffusers. The diffuser comprises a diffuser body, a first rotating shaft is arranged on the diffuser body, a blade is arranged on the outer side surface of the first rotating shaft in a sleeved mode, an adjusting assembly is arranged on the diffuser body and the blade, the adjusting assembly comprises an annular groove, the annular groove is formed in the diffuser body, an annular gear ring is rotationally arranged in the annular groove, and the annular gear ring is arranged on the outer side surface of the first rotating shaft. A finger can be inserted into a through groove by pulling a movable rod, a first gear is poked to rotate, the first gear drives an annular gear ring meshed with the first gear to rotate, the annular gear ring rotates to enable a push rod to slide along a first arc-shaped groove, the push rod pushes a blade to rotate, an arc-shaped rod slides along a second arc-shaped groove, and an arc-shaped spring is stressed and compressed; the rotating angle of the blade can be adjusted and controlled, and when the rotating angle is adjusted to a proper angle, the limiting block can be inserted into another limiting hole by loosening the movable rod, so that limiting is completed.

Description

Technical Field

[0001] This utility model relates to the field of diffuser technology, specifically to a blade diffuser adjustment mechanism. Background Technology

[0002] A diffuser is a device that generates static pressure energy by converting kinetic energy into static pressure energy, produced by a centrifugal compressor. The absolute velocity C2 of the airflow at the outlet of a centrifugal compressor impeller is generally 200-300 m / s, and the airflow velocity of a high-energy-head impeller can reach over 500 m / s. This kinetic energy accounts for a considerable proportion of the total energy head supplied to the gas by the impeller. For example, it accounts for 50% in radial straight-blade impellers and 25%-40% in water pump-type and fire compressor-type impellers. Therefore, this kinetic energy must be effectively converted into static pressure energy, which is the task of the diffuser. The diffuser also plays the role of collecting and extracting gas.

[0003] The blade angle on the existing air compressor diffuser is fixed, which means that the blade angle on the existing air compressor diffuser cannot be adjusted according to the needs. The blade angle of the diffuser is not matched with the airflow angle, resulting in a significant reduction in efficiency. Utility Model Content

[0004] To address the problem that the blade angle of existing air compressor diffusers is fixed on the diffuser, making it impossible to adjust the blade angle according to requirements, and causing a mismatch between the diffuser blades and the airflow angle, resulting in a significant reduction in efficiency, the purpose of this utility model is to provide a blade diffuser adjustment mechanism.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a blade diffuser adjustment mechanism, including a diffuser body, a first rotating shaft on the diffuser body, a blade sleeved on the outer surface of the first rotating shaft, and adjustment components on the diffuser body and the blade;

[0006] The adjusting assembly includes an annular groove formed within the diffuser body. A ring-shaped gear is rotatably mounted within the annular groove. A through-groove is formed on the outer surface of the diffuser body, communicating with the annular groove. A second rotating shaft is rotatably mounted within the through-groove. A first gear is fixedly fitted onto the outer surface of the second rotating shaft, meshing with the ring-shaped gear. A first arc-shaped groove is formed on the upper surface of the diffuser body, communicating with the annular groove. A push rod is fixedly mounted on the upper surface of the ring-shaped gear, passing through the first arc-shaped groove and slidingly engaging with the outer surface of the blade. A second arc-shaped groove is formed on the upper surface of the diffuser body. An arc-shaped spring is fixedly mounted on the inner surface of the second arc-shaped groove, with an arc-shaped rod fixedly mounted at the other end of the arc-shaped spring, and the arc-shaped rod is fixedly connected to the blade.

[0007] Preferably, a notch is formed on the outer surface of the diffuser body, the second rotating shaft passes through the notch, the lower end of the second rotating shaft is rotatably fitted with the inner surface of the notch, a disc is fixedly fitted on the outer surface of the second rotating shaft, the disc is rotatably fitted with the inner surface of the notch, a limiting hole is formed on the outer surface of the disc, a hollow shell is fixedly fitted on the inner surface of the notch, a second spring is fixedly fitted on the inner surface of the hollow shell, an arc-shaped block is fixedly fitted on the other end of the second spring, the arc-shaped block is movably fitted with the outer surface of the disc, a limiting block is fixedly fitted on the side of the arc-shaped block away from the second spring, the limiting block is movably inserted into the limiting hole, and a movable rod is fixedly fitted on one side of the arc-shaped block, the movable rod movably passing through the hollow shell.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention allows a finger to be inserted into the slot by pulling the movable rod, which rotates the first gear. The first gear drives the annular gear ring meshing with it to rotate. The rotation of the annular gear ring causes the push rod to slide along the first arc-shaped groove, pushing the blade to rotate. The arc-shaped rod slides along the second arc-shaped groove, and the arc-shaped spring is compressed, which adjusts the rotation angle of the blade. When the appropriate angle is adjusted, releasing the movable rod allows the limiting block to be inserted into another limiting hole, thus completing the limiting. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the annular groove structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the first arc-shaped groove structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the slot structure of this utility model.

[0015] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Diffuser body; 11. First rotating shaft; 12. Blade; 3. Adjustment assembly; 31. Annular groove; 32. Annular gear ring; 33. Push rod; 34. Through groove; 35. Second rotating shaft; 36. First gear; 37. First arc-shaped groove; 39. Second arc-shaped groove; 391. Arc-shaped spring; 392. Arc-shaped rod; 41. Notch; 42. Disc; 43. Limiting hole; 44. Hollow shell; 45. Movable rod; 46. Arc-shaped block; 47. Second spring; 48. Limiting block. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-5 As shown, this utility model provides a blade diffuser adjustment mechanism, including a diffuser body 1, a first rotating shaft 11 on the diffuser body 1, a blade 12 sleeved on the outer surface of the first rotating shaft 11, a plurality of blades 12, and the blades 12 are arranged in a ring array on the diffuser body 1, and an adjustment component 3 is provided on the diffuser body 1 and the blades 12.

[0019] The adjusting component 3 includes an annular groove 31, which is formed inside the diffuser body 1. An annular gear ring 32 is rotatably disposed within the annular groove 31. A through groove 34 is formed on the outer surface of the diffuser body 1, communicating with the annular groove 31. A second rotating shaft 35 is rotatably disposed within the through groove 34. A first gear 36 is fixedly sleeved on the outer surface of the second rotating shaft 35, meshing with the annular gear ring 32. A first arc-shaped groove 37 is formed on the upper surface of the diffuser body 1, communicating with the annular groove 31. A push rod 33 is fixedly disposed on the upper surface of the annular gear ring 32, passing through the first arc-shaped groove 37 and slidingly engaging with the outer surface of the blade 12. A second arc-shaped groove 39 is formed on the upper surface of the diffuser body 1, and the inner surface of the second arc-shaped groove 39... An arc-shaped spring 391 is fixedly provided, and the force of the arc-shaped spring 391 is greater than the wind force of the airflow. An arc-shaped rod 392 is fixedly provided at the other end of the arc-shaped spring 391. The arc-shaped rod 392 is fixedly connected to the blade 12. By pulling the movable rod 45, the limiting block 48 can be disengaged from the limiting hole 43. Then, a finger can be inserted into the through groove 34 to rotate the first gear 36. The first gear 36 drives the annular toothed ring 32 that meshes with it to rotate. The rotation of the annular toothed ring 32 can cause the push rod 33 to slide along the first arc-shaped groove 37. The push rod 33 pushes the blade 12 to rotate. The arc-shaped rod 392 slides along the second arc-shaped groove 39. The arc-shaped spring 391 is compressed by force, and the rotation angle of the blade 12 can be adjusted. When the appropriate angle is adjusted, the movable rod 45 can be released, and the force of the second spring 47 can cause the limiting block 48 to be inserted into another limiting hole 43 to complete the limiting.

[0020] The second arc-shaped groove 39 is provided in a plurality of them, and the second arc-shaped groove 39 is arranged in a ring array on the upper surface of the diffuser body 1, which facilitates the connection of multiple blades 12.

[0021] The diffuser body 1 has a slot 41 on its outer surface. The second rotating shaft 35 passes through the slot 41. The lower end of the second rotating shaft 35 is rotatably fitted with the inner surface of the slot 41. A disc 42 is fixedly sleeved on the outer surface of the second rotating shaft 35. The disc 42 is rotatably fitted with the inner surface of the slot 41. A limiting hole 43 is opened on the outer surface of the disc 42. A hollow shell 44 is fixedly installed on the inner surface of the slot 41. A second spring 47 is fixedly installed on the inner surface of the hollow shell 44. An arc-shaped block 46 is fixedly installed at the other end of the second spring 47. The arc-shaped block 46 is movably fitted with the outer surface of the disc 42. A limiting block 48 is fixedly installed on the side of the arc-shaped block 46 away from the second spring 47. The limiting block 48 is movably inserted into the limiting hole 43. A movable rod 45 is fixedly installed on one side of the arc-shaped block 46. The movable rod 45 movably passes through the hollow shell 44.

[0022] There are eight second springs 47, and the second springs 47 are arranged in an array between the inner surface of the hollow shell 44 and the arc block 46 to improve the stability after connection. The cross-sectional shape of the movable rod 45 is "T" shaped to facilitate pulling the movable rod 45. There are several limiting holes 43, and the limiting holes 43 are arranged in a ring array on the outer surface of the disc 42 to facilitate limiting after adjustment.

[0023] Working principle: In use, the limiting block 48 can be disengaged from the limiting hole 43 by pulling the movable rod 45. Then, a finger can be inserted into the through groove 34 to rotate the first gear 36. The first gear 36 drives the annular toothed ring 32 meshing with it to rotate. The rotation of the annular toothed ring 32 causes the push rod 33 to slide along the first arc groove 37. The push rod 33 pushes the blade 12 to rotate. The arc rod 392 slides along the second arc groove 39. The arc spring 391 is compressed by force, and the rotation angle of the blade 12 can be adjusted. When the appropriate angle is adjusted, the movable rod 45 can be released, and the force of the second spring 47 can allow the limiting block 48 to be inserted into another limiting hole 43 to complete the limiting.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A vane diffuser adjustment mechanism comprising a diffuser body (1), characterised in that: The diffuser body (1) is provided with a first rotating shaft (11), the outer surface of the first rotating shaft (11) is sleeved with a blade (12), and the diffuser body (1) and the blade (12) are provided with an adjusting assembly (3); The adjusting assembly (3) comprises a ring groove (31) formed in the diffuser body (1), a ring gear (32) rotatably arranged in the ring groove (31), a through groove (34) formed in the outer surface of the diffuser body (1), the through groove (34) being in communication with the ring groove (31), a second rotating shaft (35) rotatably arranged in the through groove (34), a first gear (36) fixedly sleeved on the outer surface of the second rotating shaft (35), the first gear (36) being engaged with the ring gear (32), a first arc-shaped groove (37) formed in the upper surface of the diffuser body (1), the first arc-shaped groove (37) being in communication with the ring groove (31), a push rod (33) fixedly arranged on the upper surface of the ring gear (32), the push rod (33) penetrating through the first arc-shaped groove (37), the push rod (33) being in sliding fit with the outer surface of the blade (12), a second arc-shaped groove (39) formed in the upper surface of the diffuser body (1), an arc-shaped spring (391) fixedly arranged on the inner surface of the second arc-shaped groove (39), the other end of the arc-shaped spring (391) being fixedly provided with an arc-shaped rod (392), and the arc-shaped rod (392) being fixedly connected with the blade (12).

2. A vane diffuser adjustment mechanism as claimed in claim 1, wherein, The outer surface of the diffuser body (1) is provided with a slot (41), the second rotating shaft (35) penetrates through the slot (41), the lower end of the second rotating shaft (35) is in rotational fit with the inner surface of the slot (41), the outer surface of the second rotating shaft (35) is fixedly sleeved with a disc (42), the disc (42) is in rotational fit with the inner surface of the slot (41), the outer surface of the disc (42) is provided with a limiting hole (43), the inner surface of the slot (41) is fixedly provided with a hollow shell (44), the inner surface of the hollow shell (44) is fixedly provided with a second spring (47), the other end of the second spring (47) is fixedly provided with an arc-shaped block (46), the arc-shaped block (46) is in movable fit with the outer surface of the disc (42), the side, away from the second spring (47), of the arc-shaped block (46) is fixedly provided with a limiting block (48), the limiting block (48) is movably inserted into the limiting hole (43), and the side of the arc-shaped block (46) is fixedly provided with a movable rod (45), the movable rod (45) movably penetrates through the hollow shell (44).

3. A vane diffuser adjustment mechanism as claimed in claim 1, wherein, The blade (12) is provided with a plurality of blades (12), and the blades (12) are arranged in an annular array on the diffuser body (1).

4. A vane diffuser adjustment mechanism as claimed in claim 1, wherein, The second arc-shaped groove (39) is provided with a plurality of second arc-shaped grooves (39), and the second arc-shaped grooves (39) are respectively arranged in an annular array on the upper surface of the diffuser body (1).

5. A vane diffuser adjustment mechanism as claimed in claim 2, wherein, The second spring (47) is provided with eight second springs (47), and the second springs (47) are arranged between the inner surface of the hollow shell (44) and the arc-shaped block (46).

6. A vane diffuser adjustment mechanism as claimed in claim 2, wherein, The movable rod (45) is in the shape of "T".

7. A vane diffuser adjustment mechanism as claimed in claim 2, wherein, The limiting holes (43) are arranged in an annular array on the outer surface of the disc (42).

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