Titanium alloy impeller of centrifugal air compressor

Abstract

The utility model discloses a titanium alloy impeller of a centrifugal air compressor, and belongs to the technical field of impeller parts of air compressors. The device comprises a driving motor and a connecting and fixing mechanism, the output end of the driving motor is fixedly connected with a transmission rod through the connecting and fixing mechanism, a first lantern ring is fixedly connected above the surface of the transmission rod, and a second lantern ring is slidably connected below the surface of the transmission rod. By arranging the transmission rod made of titanium alloy, the first lantern ring, the second lantern ring and the rotating fan blades, the overall mass of the device is reduced, the strength is improved, the energy consumption of the driving motor is reduced, the second lantern ring is close to the first lantern ring, the two sets of rotating fan blades are close to each other, larger centrifugal force is generated during rotation, the air compression amount is increased, and the service life of the device is prolonged. In this way, the distance between the fixed impellers can be conveniently adjusted, the air compression amount is increased under the condition that the motor power is not increased, the fan blades made of titanium alloy are used, the strength of the fan blades is improved, the weight is reduced, and the energy consumption of the motor is reduced.

Description

A titanium alloy impeller for centrifugal air compressors Technical Field

[0001] This utility model belongs to the technical field of air compressor impeller components, specifically a titanium alloy impeller for a centrifugal air compressor. Background Technology

[0002] An air compressor is a device used to compress gases. Air compressors are similar in construction to water pumps. Most air compressors are reciprocating piston, rotary vane, or rotary screw types.

[0003] A search revealed Chinese patent application number 202021508733.3, which discloses an air compressor impeller. The impeller body includes a central portion and several blades mounted outside the central portion. A mounting chamber is provided on one side of the central portion, and a mating part with insertion holes is provided within the mounting chamber. Several notches are provided on the side wall of the mating part, and an elastic element is fitted onto the outside of the mating part. The elastic element is engaged within the impeller and provides a tightening effect when assembled onto the rotor. During machine operation, the elastic element consistently applies pressure to the mating part, preventing it from spreading outwards and thus preventing the impeller from loosening or falling off.

[0004] Although the aforementioned patented elastic element is inserted into the impeller and can tighten it when assembled onto the rotor, and provides constant pressure to the mating part during machine operation to prevent the mating part from spreading outward and thus preventing the impeller from loosening or falling off, it is inconvenient to adjust the impeller spacing after installation in actual use. It is also inconvenient to adjust the air compression by controlling the impeller spacing. The only way to adjust the air compression is to increase the motor power. In addition, the fan blade is made of ordinary material, which has poor strength and heavy weight, increasing the energy consumption of the motor and causing inconvenience to the user.

[0005] Therefore, it needs to be modified to facilitate the adjustment of the spacing of the fixed impeller, increase the air compression without increasing the motor power, use titanium alloy fan blades to improve the strength of the fan blades, reduce the weight, reduce the energy consumption of the motor, and make it convenient for users. Summary of the Invention

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a titanium alloy impeller for a centrifugal air compressor. This impeller offers advantages such as easy adjustment of the impeller spacing after installation, increased air compression without increasing motor power, improved blade strength and reduced weight due to the use of titanium alloy blades, and reduced motor energy consumption. It also solves the problems of inconvenient impeller spacing adjustment after installation, difficulty in adjusting air compression by controlling impeller spacing, the reliance on increasing motor power for air compression adjustment, and the use of ordinary blade materials with lower strength and greater weight, which increases motor energy consumption and inconveniences users.

[0007] This utility model provides the following technical solution: a titanium alloy impeller for a centrifugal air compressor, comprising a drive motor and a connecting and fixing mechanism. The output end of the drive motor is movably connected to a transmission rod through the connecting and fixing mechanism. A first collar is fixedly connected to the upper surface of the transmission rod, and a second collar is slidably connected to the lower surface of the transmission rod. A plurality of evenly distributed rotating fan blades are fixedly connected to the surfaces of both the first and second collars. A threaded rod is fixedly connected to the bottom end of the transmission rod, and a limit block is fixedly connected to the bottom end of the threaded rod. A hollow threaded tube is threadedly connected to the lower surface of the threaded rod, and the bottom end of the hollow threaded tube is fitted with the top end of the limit block. A movable ring sleeved on the outside of the threaded rod is rotatably connected to the top end of the hollow threaded tube. Top rods are fixedly connected to all four sides of the top of the movable ring, and the top end of the top rod is fixedly connected to the bottom of the second collar.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model reduces the overall weight of the device, increases its strength, and reduces the energy consumption of the drive motor by setting a transmission rod, a first ring, a second ring, and rotating fan blades made of titanium alloy. When it is necessary to adjust the impeller spacing, the hollow threaded tube can be rotated. When the hollow threaded tube rotates, the threaded rod is fixed, causing it to move upward on the surface of the threaded rod, which in turn drives the moving ring to move upward. When the moving ring moves upward, it drives the push rod to move upward. The upward movement of the push rod drives the second ring to move closer to the first ring, bringing the two sets of rotating fan blades closer together and reducing the spacing between the two sets of impellers. This results in a greater centrifugal force during rotation, increasing the air compression. This facilitates the adjustment of the spacing between the fixed impellers, increases the air compression without increasing the motor power, and uses fan blades made of titanium alloy, which increases the strength of the fan blades, reduces the weight, and reduces the energy consumption of the motor.

[0010] 2. This utility model sets up a corresponding matching connection ring and bolts. By tightening the bolts, the output end of the drive motor is stably fixed inside the connection ring, so that it is not easy to slip or spin freely when rotating. At the same time, the transmission rod can be easily disassembled and maintained by loosening the bolts. Attached Figure Description

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

[0012] Figure 2 is a cross-sectional view of the present invention.

[0013] Figure 3 is an enlarged structural schematic diagram of A in Figure 2 of this utility model.

[0014] Figure 4 is an enlarged structural schematic diagram of B in Figure 2 of this utility model.

[0015] Figure 5 is an enlarged structural schematic diagram of C in Figure 2 of this utility model. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] As shown in Figures 1 to 5, the titanium alloy impeller of the centrifugal air compressor in this embodiment includes a drive motor 1 and a connecting and fixing mechanism 2. The output end of the drive motor 1 is movably connected to a transmission rod 3 through the connecting and fixing mechanism 2. A first ring 4 is fixedly connected to the upper surface of the transmission rod 3, and a second ring 5 is slidably connected to the lower surface of the transmission rod 3. A number of evenly distributed rotating fan blades 6 are fixedly connected to the surfaces of both the first ring 4 and the second ring 5. A threaded rod 7 is fixedly connected to the bottom end of the transmission rod 3. A limit block 8 is fixedly connected to the bottom end of the threaded rod 7. A hollow threaded tube 9 is threadedly connected to the lower surface of the threaded rod 7. The bottom end of the hollow threaded tube 9 is in contact with the top end of the limit block 8. A movable ring 10 sleeved on the outside of the threaded rod 7 is rotatably connected to the top end of the hollow threaded tube 9. A top rod 11 is fixedly connected to all four sides of the top of the movable ring 10. The top end of the top rod 11 is fixedly connected to the bottom of the second ring 5.

[0018] Referring to Figure 3, the connecting and fixing mechanism 2 includes a connecting ring 12 fixed to the top of the transmission rod 3. The output end of the drive motor 1 is attached to the upper part of the inner wall of the connecting ring 12. A threaded hole is opened on the right side of the connecting ring 12, and a bolt 13 is threaded inside the threaded hole. The left end of the bolt 13 extends into the interior of the connecting ring 12 and is attached to the surface of the output end of the drive motor 1.

[0019] In this embodiment, by setting the corresponding matching of the connecting ring 12 and the bolt 13, the output end of the drive motor 1 is stably fixed inside the connecting ring 12 by tightening the bolt 13, so that it is not easy to slip or spin freely when rotating. At the same time, the transmission rod 3 can be easily disassembled and maintained by loosening the bolt 13.

[0020] Referring to Figures 1 and 4, through holes are provided around the surface of the first ring 4, and a stabilizing rod 14 is slidably connected inside the through holes. The bottom end of the stabilizing rod 14 is fixedly connected to the top of the second ring 5. A compression spring 15 is sleeved on the surface of the stabilizing rod 14. The top end of the compression spring 15 is fixedly connected to the bottom of the first ring 4, and the bottom end of the compression spring 15 is fixedly connected to the top of the second ring 5. The top of the stabilizing rod 14 extends to the top of the first ring 4 and is fixedly connected to an auxiliary fixing mechanism 16.

[0021] In this embodiment, the corresponding arrangement of the stabilizer bar 14, the compression spring 15, and the auxiliary fixing mechanism 16 ensures that when the second ring 5 approaches the first ring 4, the stabilizer bar 14 limits its movement, allowing it to only move up and down to prevent swaying. At the same time, the compression spring 15 applies pressure to the first ring 4 and the second ring 5, preventing the second ring 5 from swaying when the drive motor 1 starts, thus avoiding any impact on its use. The auxiliary fixing mechanism 16 reinforces the top of the stabilizer bar 14.

[0022] Referring to Figures 1 and 4, the auxiliary fixing mechanism 16 includes a limiting ring 17 sleeved on the surface of the transmission rod 3. A circular hole is provided on the right side of the limiting ring 17, and a pressing rod 18 is slidably connected inside the circular hole. A pull ring 19 is fixedly connected to the right end of the pressing rod 18, and a friction plate 20 is fixedly connected to the left end of the pressing rod 18. The left side of the friction plate 20 is in contact with the surface of the transmission rod 3. A tension spring 21 is sleeved on the surface of the pressing rod 18. The right end of the tension spring 21 is fixedly connected to the left side of the pull ring 19, and the left end of the tension spring 21 is fixedly connected to the surface of the limiting ring 17.

[0023] This embodiment uses a corresponding arrangement of a limiting ring 17, a pressing rod 18, a pull ring 19, a friction plate 20, and a tension spring 21. The tension of the tension spring 21 causes the pressing rod 18 to move to the left, making the friction plate 20 fit tightly against the surface of the transmission rod 3, thus fixing the limiting ring 17. The fixing of the limiting ring 17 also fixes the top of the stabilizing rod 14, preventing the stabilizing rod 14 from shaking when the impeller rotates. At the same time, when it is necessary to adjust the impeller spacing, the pull ring 19 can be pulled upward to move the friction plate 20 away from the transmission rod 3 and release the fixation of the stabilizing rod 14, making it convenient for the user.

[0024] Referring to Figure 5, a slider 22 is fixedly connected to the right side of the inner surface of the second ring 5, and a groove 23 corresponding to and cooperating with the slider 22 is provided on the lower right side of the transmission rod 3 surface, and the slider 22 and the groove 23 are slidably connected.

[0025] In this embodiment, by setting the corresponding cooperation between the slider 22 and the groove 23, the second ring 5 is limited, so that it can only move up and down on the surface of the transmission rod 3, thus avoiding the second ring 5 from shaking when the impeller rotates, which would affect its use.

[0026] Referring to Figure 1, the transmission rod 3 has a weight reduction groove 24 inside. The transmission rod 3, the first collar 4, the second collar 5 and the rotating fan blade 6 are all made of titanium alloy.

[0027] This embodiment further reduces the weight of the device by setting the weight reduction groove 24. By setting the transmission rod 3, the first collar 4, the second collar 5 and the rotating fan blade 6 made of titanium alloy, the overall mass of the device is reduced, the strength is increased and the energy consumption of the drive motor 1 is reduced.

[0028] This invention reduces the overall weight of the device, increases its strength, and reduces the energy consumption of the drive motor 1 by using a titanium alloy transmission rod 3, a first set of rings 4, a second set of rings 5, and rotating fan blades 6. When it is necessary to adjust the impeller spacing, the hollow threaded tube 9 can be rotated. When the hollow threaded tube 9 rotates, the threaded rod 7 is fixed, causing it to move upward on the surface of the threaded rod 7, which in turn moves the moving ring 10 upward. When the moving ring 10 moves upward, it moves the top rod 11 upward. The upward movement of the top rod 11 causes the second set of rings 5 ​​to move closer to the first set of rings 4, bringing the two sets of rotating fan blades 6 closer together and reducing the spacing between the two sets of impellers. This results in a greater centrifugal force during rotation, increasing the air compression. This allows for convenient adjustment of the spacing between the fixed impellers, increasing the air compression without increasing the motor power. The use of titanium alloy fan blades increases the strength of the fan blades, reduces weight, and lowers the energy consumption of the motor.

Claims

1. A titanium alloy impeller for a centrifugal air compressor, comprising a drive motor (1) and a connecting and fixing mechanism (2), characterized in that: The output end of the drive motor (1) is movably connected to a transmission rod (3) via a connecting and fixing mechanism (2). A first ring (4) is fixedly connected to the upper surface of the transmission rod (3), and a second ring (5) is slidably connected to the lower surface of the transmission rod (3). A number of evenly distributed rotating fan blades (6) are fixedly connected to the surfaces of the first ring (4) and the second ring (5). A threaded rod (7) is fixedly connected to the bottom end of the transmission rod (3). A limit block (8) is fixedly connected to the bottom end of the threaded rod (7). A hollow threaded tube (9) is threadedly connected to the lower surface of the threaded rod (7). The bottom end of the hollow threaded tube (9) is in contact with the top end of the limit block (8). A movable ring (10) sleeved on the outside of the threaded rod (7) is rotatably connected to the top end of the hollow threaded tube (9). A top rod (11) is fixedly connected to the top of the movable ring (10) around its perimeter. The top end of the top rod (11) is fixedly connected to the bottom of the second ring (5).

2. The titanium alloy impeller for a centrifugal air compressor according to claim 1, characterized in that: The connecting and fixing mechanism (2) includes a connecting ring (12) fixed on the top of the transmission rod (3). The output end of the drive motor (1) is attached to the upper part of the inner wall of the connecting ring (12). A threaded hole is provided on the right side of the connecting ring (12), and a bolt (13) is threaded inside the threaded hole. The left end of the bolt (13) extends into the interior of the connecting ring (12) and is attached to the surface of the output end of the drive motor (1).

3. The titanium alloy impeller for a centrifugal air compressor according to claim 2, characterized in that: The first collar (4) has through holes on all four sides, and a stabilizing rod (14) is slidably connected inside the through holes. The bottom end of the stabilizing rod (14) is fixedly connected to the top of the second collar (5). A compression spring (15) is sleeved on the surface of the stabilizing rod (14). The top end of the compression spring (15) is fixedly connected to the bottom of the first collar (4), and the bottom end of the compression spring (15) is fixedly connected to the top of the second collar (5). The top of the stabilizing rod (14) extends to the top of the first collar (4) and is fixedly connected to an auxiliary fixing mechanism (16).

4. A titanium alloy impeller for a centrifugal air compressor as defined in claim 3 wherein: The auxiliary fixing mechanism (16) includes a limiting ring (17) sleeved on the surface of the transmission rod (3). A circular hole is provided on the right side of the limiting ring (17), and a pressing rod (18) is slidably connected inside the circular hole. A pull ring (19) is fixedly connected to the right end of the pressing rod (18), and a friction plate (20) is fixedly connected to the left end of the pressing rod (18). The left side of the friction plate (20) is in contact with the surface of the transmission rod (3). A tension spring (21) is sleeved on the surface of the pressing rod (18). The right end of the tension spring (21) is fixedly connected to the left side of the pull ring (19), and the left end of the tension spring (21) is fixedly connected to the surface of the limiting ring (17).

5. A titanium alloy impeller for a centrifugal air compressor as defined in claim 4 wherein: A slider (22) is fixedly connected to the right side of the inner surface of the second ring (5). A groove (23) corresponding to and cooperating with the slider (22) is opened on the lower right side of the surface of the transmission rod (3). The slider (22) and the groove (23) are slidably connected.

6. A titanium alloy impeller for a centrifugal air compressor according to claim 1, 2, or 5, characterized in that: The transmission rod (3) has a weight-reducing groove (24) inside.

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