CN212837977U - Shaft wheel assembly of turboexpander - Google Patents
Shaft wheel assembly of turboexpander Download PDFInfo
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- CN212837977U CN212837977U CN202021578627.2U CN202021578627U CN212837977U CN 212837977 U CN212837977 U CN 212837977U CN 202021578627 U CN202021578627 U CN 202021578627U CN 212837977 U CN212837977 U CN 212837977U
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Abstract
The utility model discloses a shaft wheel component of a turbine expander, which comprises a turbine shaft and a turbine, wherein the turbine is arranged at the shaft end of the turbine shaft; the turbine shaft is provided with a positioning mounting piece, the turbine is provided with an anti-skid fastener in a matching way, and the turbine is positioned between the positioning mounting piece and the anti-skid fastener; the turbine sleeved at the shaft end of the turbine shaft is positioned by the positioning mounting piece and is fastened by the anti-skid fastener. The utility model provides a pair of turbine expander's arbor wheel subassembly can improve the assembly convenience and the operating stability of turbine greatly, and simple structure is suitable for the scale and promotes.
Description
Technical Field
The utility model belongs to the technical field of the turboexpander among the waste heat power generation system, especially, relate to a turbine wheel subassembly of turboexpander.
Background
The turboexpander has wide application field, is mechanically connected with a generator in a waste heat power generation system, and converts energy contained in a fluid medium into mechanical work, thereby realizing the power generation of the generator. The shaft wheel assembly is an important component of the turboexpander, the structural stability of the shaft wheel assembly is related to the operation safety of the whole turboexpander, and in the prior art, in the assembling process of a turbine and a turbine shaft, the assembly difficulty is high, and mechanical friction damage to the turbine is easy to cause, which is an important factor causing potential safety hazards of the turboexpander. In order to solve the problem, the utility model discloses an arbor wheel subassembly of turboexpander can improve the assembly convenience and the operating stability of turbine greatly, and simple structure is suitable for the scale and promotes.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a turbine expander's arbor wheel subassembly can improve the assembly convenience and the operating stability of turbine greatly, and simple structure is suitable for the scale and promotes.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a shaft-wheel assembly of a turboexpander, the shaft-wheel assembly includes a turbine shaft and a turbine, the turbine is mounted at a shaft end of the turbine shaft; the turbine shaft is provided with a positioning mounting piece, the turbine is provided with an anti-skid fastener in a matching way, and the turbine is positioned between the positioning mounting piece and the anti-skid fastener; the turbine sleeved at the shaft end of the turbine shaft is positioned by the positioning mounting piece and is fastened by the anti-skid fastener.
Further, the turbine shaft comprises a main body shaft part, a turbine mounting shaft part and a fastening shaft part which are integrally formed, the positioning mounting part is arranged on the turbine mounting shaft part, and the anti-skid fastener is positioned on the fastening shaft part;
the turbine comprises a turbine hub and turbine blades, a plurality of the turbine blades are distributed in an inclined plane circumference array of the turbine hub around a shaft hole of the turbine hub, and the turbine blades climb along the inclined plane of the turbine hub; the turbine mounting rod part is matched with the shaft hole.
Furthermore, the positioning mounting piece comprises a positioning plate concentrically and fixedly arranged on the turbine mounting rod part and positioning rods distributed on the plate surface of one side of the positioning plate facing the turbine in a circumferential array manner, the large end surface of the turbine hub is provided with positioning blind holes surrounding the shaft hole in a circumferential array manner, and the positioning rods correspond to the positioning blind holes one to one; the positioning plate abuts against the large end face of the turbine hub, and the positioning rod is inserted into the positioning blind hole to position the turbine.
Furthermore, the inner diameter of the positioning rod is matched with the inner diameter of the positioning blind hole, and the length of the positioning rod is matched with the depth of the positioning blind hole or the length of the positioning rod is smaller than the depth of the positioning blind hole.
Furthermore, the anti-skid fastener comprises an anti-skid washer sleeved on the fastening rod part and a nut movably connected to the fastening rod part through threads, a limiting rod distributed in a circumferential array manner is arranged on one side ring surface of the anti-skid washer facing the turbine, and a limiting blind hole surrounding the shaft hole in a circumferential array manner is arranged on the small end surface of the turbine hub; the anti-slip gasket inserted into the limiting blind hole by the limiting rod is fastened by the nut.
Furthermore, the inner diameter of the limiting rod is matched with the inner diameter of the limiting blind hole, and the length of the limiting rod is matched with the depth of the limiting blind hole or the length of the limiting rod is smaller than the depth of the limiting blind hole.
Further, the turbine blades comprise an inclined section and a bent section which are integrally formed, the inclined section of each turbine blade is inclined at an angle alpha with the radial line of the turbine, the bent section of each turbine blade is bent at an angle beta with the axial line of the turbine, and the inclined direction of the inclined section is opposite to the bending direction of the bent section in the same turbine blade.
Further, the angle α is 20 °; the angle β is 50 °.
Has the advantages that: the utility model discloses a shaft wheel subassembly of turboexpander, beneficial effect is as follows:
1) the utility model can position the turbine before fixing through the arrangement of the positioning installation part, thereby greatly improving the assembly convenience of the turbine;
2) the utility model discloses a setting of anti-skidding fastener can avoid causing the friction between the part to the turbine to damage in the installation, guarantees the standardization of turbine and turbine shaft assembly, improves turboexpander's operation security.
Drawings
FIG. 1 is an exploded view of the arbor wheel assembly;
FIG. 2 is a schematic half-sectional view of the arbor wheel assembly;
FIG. 3 is a front view of the turbine;
FIG. 4 is a schematic view of a test configuration of a turbine;
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a shaft-wheel assembly of a turboexpander, the shaft-wheel assembly a comprises a turbine shaft a1 and a turbine wheel a2, and the turbine wheel a2 is mounted at the shaft end of the turbine shaft a 1; a positioning mounting piece a1.1 is arranged on the turbine shaft a1, an anti-skid fastener a2.1 is arranged on the turbine shaft a2 in a matching way, and the turbine a2 is positioned between the positioning mounting piece a1.1 and the anti-skid fastener a 2.1; the turbine wheel a2 sleeved at the shaft end of the turbine shaft a1 is positioned by the positioning installation piece a1.1 and is fastened by the antiskid fastener a 2.1. The utility model discloses a setting of location installed part a1.1 can fix a position it earlier before turbine a2 is fixed to improve turbine a 2's assembly convenience greatly. Furthermore, the utility model discloses an antiskid fastener a 2.1's setting can avoid causing the friction damage between the part to turbine a2 in the installation, guarantees the standardization of turbine a2 and turbine shaft a1 assembly, improves turboexpander's operation security.
More specifically, the turbine shaft a1 includes a main shaft part a11, a turbine mounting shaft part a12 and a fastening shaft part a13 which are integrally formed, the positioning and mounting part a1.1 is arranged on the turbine mounting shaft part a12, and the anti-skid fastener a2.1 is arranged on the fastening shaft part a 13; the turbine a2 comprises a turbine hub a21 and a turbine blade a22, a plurality of the turbine blades a22 are distributed around the shaft hole a210 of the turbine hub a21 in a bevel circumferential array of the turbine hub a21, and the turbine blade a22 climbs along the bevel of the turbine hub a 21; the turbine mounting stem portion a12 fits into the shaft hole a 210.
As shown in fig. 3 and 4, the turbine blade a22 includes an inclined section a221 and a bent section a222 which are integrally formed, the inclined section a221 of all the turbine blades a22 is inclined at an angle α with respect to a radial line of the turbine wheel a2, the bent section a222 of all the turbine blades a22 is bent at an angle β with respect to an axial line of the turbine wheel a2, and the inclined section a221 is inclined in a direction opposite to the bent direction of the bent section a222 in the same turbine blade a 22. The utility model discloses a turbine blade a22 structural strength is high, can make the discharge that the air current can be more smooth and easy moreover, avoids breathing out and takes place the incident.
Preferably, the angle α is 20 °.
Preferably, the angle β is 50 °.
As shown in fig. 1, the positioning mounting piece a1.1 includes a positioning plate a1.11 concentrically and fixedly arranged on the turbine mounting rod portion a12 and positioning rods a1.12 circumferentially distributed on the positioning plate a1.11 and facing the side plate surface of the turbine a2, the large end surface of the turbine hub a21 is provided with positioning blind holes a211 circumferentially surrounding the shaft hole a210, and the positioning rods a1.12 are in one-to-one correspondence with the positioning blind holes a 211; the positioning plate a1.11 abuts against the large end face of the turbine hub a21, and the positioning rod a1.12 is inserted into the positioning blind hole a211 to position the turbine a2.
It is worth noting that the inner diameter of the positioning rod a1.12 is matched with the inner diameter of the positioning blind hole a211, the length of the positioning rod a1.12 is matched with the depth of the positioning blind hole a211, or the length of the positioning rod a1.12 is smaller than the depth of the positioning blind hole a211, so that the feasibility and the accuracy of positioning are guaranteed.
As shown in fig. 1 and fig. 2, the antiskid fastener a2.1 includes an antiskid washer a2.11 sleeved on the fastening rod portion a13 and a nut a2.12 threaded on the fastening rod portion a13, a side ring surface of the antiskid washer a2.11 facing the turbine a2 is provided with limiting rods a2.13 distributed in a circumferential array, and a small end surface of the turbine hub a21 is provided with limiting blind holes a212 surrounding the shaft hole a210 in a circumferential array; the anti-skid washer a2.11 inserted into the limiting blind hole a212 by the limiting rod a2.13 is fastened by the nut a 2.12.
It is worth noting that the inner diameter of the limiting rod a2.13 is matched with the inner diameter of the limiting blind hole a212, the length of the limiting rod a2.13 is matched with the depth of the limiting blind hole a212 or the length of the limiting rod a2.13 is smaller than the depth of the limiting blind hole a212, and therefore the feasibility and the accuracy of limiting and fixing are guaranteed.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (8)
1. An arbor wheel assembly for a turboexpander, comprising: the shaft-wheel assembly (a) comprises a turbine shaft (a1) and a turbine wheel (a2), wherein the turbine wheel (a2) is mounted at the shaft end of the turbine shaft (a 1); a positioning mounting piece (a1.1) is arranged on the turbine shaft (a1), an anti-skid fastener (a2.1) is arranged on the turbine (a2) in a matching way, and the turbine (a2) is positioned between the positioning mounting piece (a1.1) and the anti-skid fastener (a 2.1); the turbine wheel (a2) sleeved at the shaft end of the turbine shaft (a1) is positioned by the positioning mounting piece (a1.1) and is fastened by the anti-skid fastener (a 2.1).
2. The shaft-wheel assembly of a turboexpander according to claim 1, wherein: the turbine shaft (a1) comprises a main body shaft part (a11), a turbine mounting shaft part (a12) and a fastening shaft part (a13) which are integrally formed, the positioning and mounting part (a1.1) is arranged on the turbine mounting shaft part (a12), and the anti-skid fastener (a2.1) is positioned on the fastening shaft part (a 13);
the turbine (a2) comprises a turbine hub (a21) and a turbine blade (a22), a plurality of pieces of the turbine blade (a22) are distributed on the circumference of the inclined plane of the turbine hub (a21) around the shaft hole (a210) of the turbine hub (a21), and the turbine blade (a22) climbs along the inclined plane of the turbine hub (a 21); the turbine mounting rod part (a12) is matched with the shaft hole (a 210).
3. The shaft-wheel assembly of a turboexpander according to claim 2, wherein: the positioning mounting piece (a1.1) comprises a positioning plate (a1.11) concentrically and fixedly arranged on the turbine mounting rod part (a12) and positioning rods (a1.12) distributed on the positioning plate (a1.11) in a circumferential array manner and facing one side plate surface of the turbine (a2), the large end surface of the turbine hub (a21) is provided with positioning blind holes (a211) surrounding the shaft hole (a210) in a circumferential array manner, and the positioning rods (a1.12) correspond to the positioning blind holes (a211) one by one; the positioning plate (a1.11) abuts against the large end face of the turbine hub (a21) and the positioning rod (a1.12) is inserted into the positioning blind hole (a211) to position the turbine (a 2).
4. The shaft-wheel assembly of a turboexpander according to claim 3, wherein: the inner diameter of the positioning rod (a1.12) is matched with the inner diameter of the positioning blind hole (a211), and the length of the positioning rod (a1.12) is matched with the depth of the positioning blind hole (a211) or the length of the positioning rod (a1.12) is smaller than the depth of the positioning blind hole (a 211).
5. The shaft-wheel assembly of a turboexpander according to claim 2, wherein: the anti-skid fastener (a2.1) comprises an anti-skid gasket (a2.11) sleeved on the fastening rod part (a13) and a nut (a2.12) in threaded loose joint on the fastening rod part (a13), limiting rods (a2.13) distributed in a circumferential array are arranged on one side ring surface of the anti-skid gasket (a2.11) facing the turbine (a2), and limiting blind holes (a212) surrounding the shaft hole (a210) in a circumferential array are arranged on the small end surface of the turbine hub (a 21); the anti-skid washer (a2.11) of the limiting rod (a2.13) inserted into the limiting blind hole (a212) is fastened through the nut (a 2.12).
6. The shaft-wheel assembly of a turboexpander according to claim 5, wherein: the inner diameter of the limiting rod (a2.13) is matched with the inner diameter of the limiting blind hole (a212), and the length of the limiting rod (a2.13) is matched with the depth of the limiting blind hole (a212) or the length of the limiting rod (a2.13) is smaller than the depth of the limiting blind hole (a 212).
7. The shaft-wheel assembly of a turboexpander according to claim 2, wherein: the turbine blades (a22) comprise an integrally formed inclined section (a221) and a bent section (a222), the inclined section (a221) of all the turbine blades (a22) is inclined at an angle alpha with the radial line of the turbine blade (a2), the bent section (a222) of all the turbine blades (a22) is bent at an angle beta with the axial line of the turbine blade (a2), and in the same turbine blade (a22), the inclined direction of the inclined section (a221) is opposite to the bending direction of the bent section (a 222).
8. The shaft-wheel assembly of a turboexpander according to claim 7, wherein: the angle α is 20 °; the angle β is 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578627.2U CN212837977U (en) | 2020-08-03 | 2020-08-03 | Shaft wheel assembly of turboexpander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578627.2U CN212837977U (en) | 2020-08-03 | 2020-08-03 | Shaft wheel assembly of turboexpander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212837977U true CN212837977U (en) | 2021-03-30 |
Family
ID=75128429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021578627.2U Active CN212837977U (en) | 2020-08-03 | 2020-08-03 | Shaft wheel assembly of turboexpander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212837977U (en) |
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2020
- 2020-08-03 CN CN202021578627.2U patent/CN212837977U/en active Active
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| GR01 | Patent grant | ||
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Address after: Room 601, 602, 603, Building A5-1, Qidi Science and Technology City Liye Park, No. 26, Zhizhi Road, Jiangning District, Nanjing, Jiangsu, 210000 Patentee after: Nanjing Hongxu Thermal Energy Technology Co.,Ltd. Address before: 123 Xingyuan Road, Changjing Town, Jiangyin, Wuxi, Jiangsu Province Patentee before: Jiangyin Hong Xu environmental protection electric technology Co.,Ltd. |
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