阅读说明：本技术 一种离心式压缩机叶轮 (Centrifugal compressor impeller ) 是由 王淮北 于 2020-08-04 设计创作，主要内容包括：本发明涉及一种离心式压缩机叶轮,包括第一安装座、第二安装座,所述第一安装座位于第二安装座下方,所述第一安装座顶侧挖设有凹槽孔,所述凹槽孔内腔中设有叶轮,所述叶轮包括轮毂板、叶片,所述叶片等距设置于轮毂板外壁,所述轮毂板顶侧设有轴孔,所述轴孔与轮毂板底侧贯通连接,所述轴孔顶侧固定连接有防护套管,所述防护套管内壁上固定连接有内套管,所述内套管内壁上等距挖设有环形缺口,所述环形缺口内腔中固定连接有减震垫圈,保证了压缩机轴杆在旋转叶轮时的稳定性,能够有效的加强整体装置中部的牢固性,避免长时间使用后轴杆发生变形折断的情况,大大提高了整体装置的使用寿命。(The invention relates to a centrifugal compressor impeller, which comprises a first mounting seat and a second mounting seat, wherein the first mounting seat is positioned below the second mounting seat, a groove hole is dug at the top side of the first mounting seat, an impeller is arranged in the inner cavity of the groove hole, the impeller comprises a hub plate and blades, the blades are equidistantly arranged on the outer wall of the hub plate, an axle hole is arranged at the top side of the hub plate and is communicated with the bottom side of the hub plate, a protective sleeve is fixedly connected at the top side of the axle hole, an inner sleeve is fixedly connected on the inner wall of the protective sleeve, annular notches are dug at equal intervals on the inner wall of the inner sleeve, a damping washer is fixedly connected in the inner cavity of the annular notch, the stability of a compressor shaft lever when the impeller is rotated is ensured, the firmness of the middle part of the integral device can be effectively enhanced, and the, greatly prolonging the service life of the whole device.)

1. A centrifugal compressor impeller comprises a first mounting seat (1) and a second mounting seat (2), and is characterized in that the first mounting seat (1) is located below the second mounting seat (2), a groove hole (3) is dug in the top side of the first mounting seat (1), an impeller (4) is arranged in the inner cavity of the groove hole (3), the impeller (4) comprises a hub plate (5) and blades (6), the blades (6) are equidistantly arranged on the outer wall of the hub plate (5), a shaft hole (7) is formed in the top side of the hub plate (5), the shaft hole (7) is in through connection with the bottom side of the hub plate (5), a protecting sleeve (8) is fixedly connected to the top side of the shaft hole (7), an inner sleeve (9) is fixedly connected to the inner wall of the protecting sleeve (8), an annular notch (10) is dug in the inner wall of the inner sleeve (9) in an equidistance mode, and a damping washer (11) is fixedly connected to the inner, connecting holes (12) are dug in the edge of the top side of the second mounting seat (2) at equal intervals, clamping protrusions (13) are arranged on the inner side of each connecting hole (12), the bottom sides of the clamping protrusions (13) are fixedly connected with the top side of the second mounting seat (2), mounting pipes (14) are arranged on the inner sides of the clamping protrusions (13), each mounting pipe (14) penetrates through the bottom side of the second mounting seat (2), a threaded groove (15) is formed in the lower portion of the outer wall of each mounting pipe (14), a connecting pipe (16) is connected between each first mounting seat (1) and each second mounting seat (2), clamping grooves (17) are dug in the edge of the bottom side of each connecting pipe (16), the top side of each connecting pipe (16) is fixedly connected with the first mounting seat (1), and the bottom side of each connecting pipe (16) is fixedly embedded with the clamping protrusions (13) on the top side of the second mounting seat (2) through, be equipped with in linking up pipe (16) inner chamber center tube (18), equidistant reinforcing plate (19) that is equipped with on center tube (18) outer wall, reinforcing plate (19) outside all with linking up pipe (16) inner wall fixed connection, the equidistance is equipped with guide block (20) on linking up pipe (16) outer wall.

2. The centrifugal compressor wheel according to claim 1, wherein: the hub plate is characterized in that the outer wall of the hub plate (5) is fixedly connected with the blades (6), the bottom side of the hub plate (5) is fixedly connected with the bottom of the inner cavity of the groove hole (3), and the hub plate (5) is of an arch-shaped structure.

3. The centrifugal compressor wheel according to claim 1, wherein: locating holes (21) are formed in the top side of the protecting sleeve (8) in an annular and equidistant mode, the locating holes (21) are respectively in through connection with the bottom side of the protecting sleeve (8), locating bolts (22) are fixedly connected to the inner cavity of the locating holes (21), and the locating bolts (22) penetrate through the bottom side of the locating holes (21) and are fixedly connected with the top side of the hub plate (5) in a threaded mode.

4. The centrifugal compressor wheel according to claim 1, wherein: the bottom side of the second mounting seat (2) is fixedly connected with a connecting ring (23), the outer wall of the top of the connecting ring (23) is fixedly connected with a positioning ring (24), the connecting ring (23) is located on the outer side of the mounting pipe (14), and a sealing ring (25) is embedded in the outer wall of the second mounting seat (2).

5. The centrifugal compressor wheel according to claim 1, wherein: the top side of the first mounting seat (1) is annularly and equidistantly provided with fixing bolts (26), the bottom ends of the fixing bolts (26) penetrate through the bottom side of the first mounting seat (1), and the bottom side of the fixing bolts (26) is in threaded connection with the inner portion of the threaded groove (15).

6. The centrifugal compressor wheel according to claim 5, wherein: arc-shaped grooves (27) are dug in the outer sides of the guide blocks (20), the tops and the bottoms of the guide blocks (20) are fixedly connected with the bottom side of the first mounting seat (1) and the top side of the second mounting seat (2) respectively, and the guide blocks (20) are attached to the outer wall of the fixing bolt (26) through the arc-shaped grooves (27).

7. The centrifugal compressor wheel according to claim 1, wherein: the guide block (20) is provided with radiating fins (28) at equal intervals, the rear sides of the radiating fins (28) are fixedly connected with the outer wall of the connecting pipe (16), the tops and the bottoms of the radiating fins (28) are fixedly connected with the first mounting seat (1) and the second mounting seat (2) respectively, and the radiating fins (28) are of a wavy sheet structure.

8. The centrifugal compressor wheel according to claim 1, wherein: the pore size of shaft hole (7) is equal with the pore size of interior sleeve pipe (9), installation pipe (14), center tube (18) respectively, just shaft hole (7) is connected through with interior sleeve pipe (9), installation pipe (14), center tube (18) respectively.

9. The centrifugal compressor wheel according to claim 1, wherein: the shape and size and the twisting angle of the blade (6) are equal, and the reinforcing plate (19) is of a reinforcing rib straight plate structure.

Technical Field

The invention relates to a centrifugal compressor impeller, and belongs to the technical field of compressor impeller devices.

Background

As the industrial structure of our country is developing in the direction of energy saving and environmental protection and the industrial equipment is developing in the direction of energy saving and environmental protection in the key development industry of national economy such as air separation, metallurgy, building materials, petrochemical industry, electricity, sewage treatment, etc., new requirements are being developed in the direction of high efficiency, high pressure ratio, small flow, long service life, easy maintenance and installation, etc., for industrial centrifugal compressors that convert mechanical energy provided by prime movers such as motors, gas turbines, steam turbines, etc. into pressure energy for increasing the pressure of gas flowing through the compressor, which essentially comprises a housing rotatably accommodating a rotor and a diaphragm bundle, the rotor can be composed of one or more impellers, which are driven to rotate by the prime movers, and the impellers are liable to cause unstable gas flow when the compressor vibrates during rotation, meanwhile, most of the impeller is formed by stamping and injection molding, the firmness and the service life of the produced and processed impeller are poor, and therefore the centrifugal compressor impeller is provided.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects and provide a centrifugal compressor impeller which can effectively solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

a centrifugal compressor impeller comprises a first mounting seat and a second mounting seat, wherein the first mounting seat is positioned below the second mounting seat, a groove hole is dug in the top side of the first mounting seat, an impeller is arranged in the inner cavity of the groove hole, the impeller comprises a hub plate and blades, the blades are equidistantly arranged on the outer wall of the hub plate, a shaft hole is formed in the top side of the hub plate, the shaft hole is communicated with the bottom side of the hub plate, a protective sleeve is fixedly connected to the top side of the shaft hole, an inner sleeve is fixedly connected to the inner wall of the protective sleeve, annular notches are dug in the inner wall of the inner sleeve at equal intervals, a damping washer is fixedly connected to the inner cavity of the annular notches, connecting holes are dug in the edge of the top side of the second mounting seat at equal intervals, clamping bulges are arranged on the inner side of the connecting holes, the bottom sides of the clamping, the mounting pipe runs through the bottom side of the second mounting seat, a threaded groove is formed below the outer wall of the mounting pipe, a connecting pipe is connected between the first mounting seat and the second mounting seat, clamping grooves are formed in the edges of the bottom side of the connecting pipe in a dug mode respectively, the top side of the connecting pipe is fixedly connected with the bottom side of the first mounting seat, the bottom side of the connecting pipe is fixedly embedded with clamping protrusions on the top side of the second mounting seat through the clamping grooves, a central pipe is arranged in an inner cavity of the connecting pipe, reinforcing plates are arranged on the outer wall of the central pipe at equal intervals, the outer sides of the reinforcing plates are fixedly connected with the inner wall of the connecting pipe, and guide blocks are arranged on.

As a further description of the above solution, the outer wall of the hub plate is fixedly connected to the blades, and the bottom side of the hub plate is fixedly connected to the bottom of the cavity of the groove hole, and the hub plate is specifically of an arch-shaped structure.

As a further description of the above scheme, positioning holes are annularly and equidistantly formed in the top side of the protecting sleeve, the positioning holes are respectively in through connection with the bottom side of the protecting sleeve, positioning bolts are fixedly connected in inner cavities of the positioning holes, and the positioning bolts penetrate through the bottom sides of the positioning holes and are fixedly connected with the top side of the hub plate in a threaded manner.

As a further description of the above scheme, a connecting ring is fixedly connected to the bottom side of the second mounting seat, a positioning ring is fixedly connected to the outer wall of the top of the connecting ring, the connecting ring is located outside the mounting pipe, and a sealing ring is embedded in the outer wall of the second mounting seat.

As a further description of the above scheme, fixing bolts are annularly and equidistantly arranged on the top side of the first mounting seat, the bottom ends of the fixing bolts all penetrate through the bottom side of the first mounting seat, and the bottom sides of the fixing bolts are in threaded connection with the inside of the threaded grooves.

As a further description of the above scheme, arc-shaped grooves are dug in the outer sides of the guide blocks, the top and the bottom of each guide block are fixedly connected with the bottom side of the first mounting seat and the top side of the second mounting seat respectively, and the guide blocks are attached to the outer wall of the fixing bolt through the arc-shaped grooves.

As a further description of the above scheme, the guide blocks are equally spaced by heat dissipation fins, the rear sides of the heat dissipation fins are fixedly connected with the outer wall of the connecting pipe, the tops and the bottoms of the heat dissipation fins are respectively fixedly connected with the first mounting seat and the second mounting seat, and the heat dissipation fins are specifically of a wave sheet structure.

As a further description of the above scheme, the pore size of the shaft hole is equal to the pore size of the inner sleeve, the mounting tube and the central tube, and the shaft hole is in through connection with the inner sleeve, the mounting tube and the central tube.

As a further description of the above solution, the shape, size and twist angle of the blade are equal, and the reinforcing plate is specifically a reinforcing rib straight plate structure.

The invention has the beneficial effects that:

1. by arranging the damping washer, when the inner sleeve is connected with the shaft lever of the compressor, the damping washer is attached to the shaft lever, and the damping washer can reduce the vibration frequency of the shaft lever under the condition that the compressor vibrates, so that the stability of the shaft lever of the compressor during the rotation of the impeller is ensured;

2. the central tube and the reinforcing plate are arranged, so that the shaft lever can penetrate through the central tube in the inner cavity of the connecting tube, the central tube is fixedly connected with the outer wall of the shaft lever, the central tube and the inner wall of the connecting tube are supported by the reinforcing plate, the firmness of the middle part of the integral device can be effectively enhanced, and the condition that the shaft lever is deformed and broken after long-time use is avoided;

3. through setting up the arc recess, can connect the second mount pad when fixed bolt is fixed, the arc recess in the guide block outside can laminate with the fixing bolt outer wall to the convenience supports the fixing bolt inboard, avoids the condition that fixing bolt takes place to warp under the long-time in service behavior, has improved the life of integrated device greatly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic view of an external structure of an impeller of a centrifugal compressor according to the present invention.

Fig. 2 is a top plan view of an impeller of a centrifugal compressor impeller of the present invention.

Fig. 3 is a schematic cross-sectional view of a protective casing for an impeller of a centrifugal compressor according to the present invention.

Fig. 4 is a sectional view of a second mounting seat of the impeller of the centrifugal compressor according to the present invention.

Fig. 5 is a schematic view showing the internal structure of a connecting pipe of an impeller of a centrifugal compressor according to the present invention.

Reference numbers in the figures: 1. a first mounting seat; 2. a second mounting seat; 3. a groove hole; 4. an impeller; 5. a hub plate; 6. a blade; 7. a shaft hole; 8. a protective sleeve; 9. an inner sleeve; 10. an annular gap; 11. a cushion ring; 12. connecting holes; 13. clamping the protrusion; 14. installing a pipe; 15. a threaded groove; 16. connecting the pipe; 17. clamping the groove; 18. a central tube; 19. a reinforcing plate; 20. a guide block; 21. positioning holes; 22. positioning the bolt; 23. a connecting ring; 24. a positioning ring; 25. a seal ring; 26. fixing the bolt; 27. an arc-shaped groove; 28. and (4) radiating fins.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to fig. 1-5, the present invention provides a technical solution: a centrifugal compressor impeller comprises a first mounting seat 1 and a second mounting seat 2, wherein the first mounting seat 1 is positioned below the second mounting seat 2, a groove hole 3 is dug on the top side of the first mounting seat 1, an impeller 4 is arranged in the inner cavity of the groove hole 3, the impeller 4 comprises a hub plate 5 and blades 6, the blades 6 are equidistantly arranged on the outer wall of the hub plate 5, the outer wall of the hub plate 5 is fixedly connected with the blades 6, the bottom side of the hub plate 5 is fixedly connected with the bottom of the inner cavity of the groove hole 3, the hub plate 5 is particularly of an arch-shaped structure, a shaft hole 7 is arranged on the top side of the hub plate 5, the shaft hole 7 is communicated with the bottom side of the hub plate 5, a protective sleeve 8 is fixedly connected to the top side of the shaft hole 7, an inner sleeve 9 is fixedly connected to the inner wall of the protective sleeve 8, an annular gap 10 is dug on the inner wall of the inner sleeve 9 at an equal, by arranging the damping washer 11, when the inner sleeve 9 is connected with the shaft rod of the compressor, the damping washer 11 is attached to the shaft rod, under the condition that the compressor vibrates, the damping washer 11 can reduce the vibration frequency of the shaft rod, so that the stability of the shaft rod of the compressor when rotating an impeller is ensured, the edge of the top side of the second mounting seat 2 is equidistantly dug with connecting holes 12, the inner side of each connecting hole 12 is provided with a clamping bulge 13, the bottom side of each clamping bulge 13 is fixedly connected with the top side of the second mounting seat 2, the inner side of each clamping bulge 13 is provided with a mounting pipe 14, the mounting pipe 14 penetrates through the bottom side of the second mounting seat 2, a threaded groove 15 is arranged below the outer wall of the mounting pipe 14, the top side of the first mounting seat 1 is annularly and equidistantly provided with fixing bolts 26, the bottom ends of the fixing bolts 26 all penetrate through the bottom side of the first mounting seat 1, a connecting pipe 16 is connected between the first mounting seat 1 and the second mounting seat 2, a clamping groove 17 is dug in the edge of the bottom side of the connecting pipe 16, the top side of the connecting pipe 16 is fixedly connected with the bottom side of the first mounting seat 1, the bottom side of the connecting pipe 16 is fixedly embedded with a clamping bulge 13 on the top side of the second mounting seat 2 through the clamping groove 17, a central pipe 18 is arranged in the inner cavity of the connecting pipe 16, reinforcing plates 19 are equidistantly arranged on the outer wall of the central pipe 18, the central pipe 18 can penetrate through the central pipe 18 in the inner cavity of the connecting pipe 16 by arranging the central pipe 18 and the reinforcing plates 19, the central pipe 18 is fixedly connected with the outer wall of the shaft rod, the reinforcing plates 19 support the inner walls of the central pipe 18 and the connecting pipe 16, the firmness of the middle part of the whole device can be effectively enhanced, the situation that the shaft rod is deformed and broken after long-time use, the outer wall of the connecting pipe 16 is provided with guide blocks 20 at equal intervals.

Specifically, as shown in fig. 3, the top side of the protecting sleeve 8 is provided with positioning holes 21 at equal intervals, the positioning holes 21 are respectively connected with the bottom side of the protecting sleeve 8 in a penetrating manner, positioning bolts 22 are fixedly connected to the inner cavities of the positioning holes 21, the positioning bolts 22 penetrate through the bottom sides of the positioning holes 21 and are fixedly connected with the top side of the hub plate 5 in a threaded manner, the positioning bolts 22 can penetrate through the positioning holes 21 in the protecting sleeve 8 and are respectively connected with the top side of the hub plate 5 in a threaded manner, so that the protecting sleeve 8 can be conveniently fixed, the outer wall of the shaft rod can be protected, the protecting sleeve 8 is prevented from being fixed when the shaft rod shakes, and meanwhile, the positioning bolts 22 can enhance the firmness of the inner cavities of the protecting sleeve 8.

Specifically, as shown in fig. 4, a connecting ring 23 is fixedly connected to the bottom side of the second mounting seat 2, a positioning ring 24 is fixedly connected to the outer wall of the top of the connecting ring 23, the connecting ring 23 is located outside the mounting pipe 14, and a sealing ring 25 is embedded in the outer wall of the second mounting seat 2.

Specifically, as shown in fig. 5, the outer sides of the guide blocks 20 are all dug with arc-shaped grooves 27, by arranging the arc-shaped grooves 27, when the second mounting seat 2 is connected and fixed by the fixing bolt 26, the arc-shaped grooves 27 on the outer sides of the guide blocks 20 can be attached to the outer wall of the fixing bolt 26, so that the inner sides of the fixing bolt 26 can be conveniently supported, the situation that the fixing bolt 26 is deformed under the long-time use condition is avoided, the service life of the whole device is greatly prolonged, the top and the bottom of the guide blocks 20 are respectively fixedly connected with the bottom side of the first mounting seat 1 and the top side of the second mounting seat 2, the guide blocks 20 are attached to the outer wall of the fixing bolt 26 by the arc-shaped grooves 27, the heat dissipation fins 28 are equidistantly arranged between the guide blocks 20, and by arranging the heat dissipation fins 28, the heat dissipation fins 28 can effectively increase the, therefore, the heat of the surface of the compressor can be absorbed while the compressor rotates, the heat is dissipated through the radiating fins 28, the rear sides of the radiating fins 28 are fixedly connected with the outer wall of the connecting pipe 16, the tops and the bottoms of the radiating fins 28 are fixedly connected with the first mounting seat 1 and the second mounting seat 2 respectively, and the radiating fins 28 are of a wave sheet structure.

Specifically, as shown in fig. 2, the hole diameter of the shaft hole 7 is equal to the hole diameters of the inner tube 9, the mounting tube 14, and the center tube 18, and the shaft hole 7 is connected to the inner tube 9, the mounting tube 14, and the center tube 18.

When the invention is used, when the second mounting seat 2 is connected and fixed by the fixing bolt 26, the arc-shaped groove 27 at the outer side of the guide block 20 can be jointed with the outer wall of the fixing bolt 26, so that the inner side of the fixing bolt 26 is conveniently supported, the positioning bolt 22 penetrates through the positioning hole 21 on the protective sleeve 8 and then is respectively in threaded connection with the top side of the hub plate 5, the heat radiating fin 28 can effectively increase the contact area of the whole device and the air, so that the heat at the surface of the compressor can be absorbed while rotating, the central tube 18 in the inner cavity of the connecting tube 16 can be penetrated by the shaft lever, the central tube 18 is fixedly connected with the outer wall of the shaft lever, the firmness at the middle part of the whole device can be effectively enhanced by the support of the reinforcing plate 19 for the inner walls of the central tube 18 and the connecting tube 16, and when the inner sleeve 9 is connected with the shaft, in case of compressor vibration, the cushion ring 11 can reduce the shaft vibration frequency.

The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.