CN216043900U

CN216043900U - High-reliability turbine

Info

Publication number: CN216043900U
Application number: CN202121980621.2U
Authority: CN
Inventors: 刘鸣; 邱自成; 高杨
Original assignee: Zhejiang Huaran Power Technology Co ltd
Current assignee: Zhejiang Huaran Power Technology Co ltd
Priority date: 2021-08-21
Filing date: 2021-08-21
Publication date: 2022-03-15
Anticipated expiration: 2031-08-21

Abstract

The utility model discloses a high-reliability turbine which comprises a hub disc, wherein a plurality of blades are arranged on the hub disc, the blades are made of nickel-based high-temperature alloy materials, the hub disc comprises a disc core and a disc edge arranged on the outer peripheral wall of the disc core, the blades are detachably arranged on the disc edge through a locking structure, the locking structure comprises a tenon arranged at the tail end of each blade and a mortise arranged on the outer peripheral wall of the disc edge and matched with the tenon, a positioning through hole extending to the bottom of the disc edge is formed in the bottom wall of the mortise, a cavity is formed in the bottom of the tenon, locking bolts penetrating through the positioning through holes are connected in the cavity in a sliding mode, and locking screw sleeves are connected to the locking bolts in a threaded mode. The utility model has the beneficial effects that: the blade locking structure is high in reliability, the blade is detachably mounted on the disc edge through the locking structure, and the locking bolt can be locked by screwing the locking threaded sleeve, so that the tenon and the mortise are firmly connected, the positioning operation is convenient and simple, and the mounting firmness is good.

Description

High-reliability turbine

Technical Field

The utility model relates to the technical field of turbines, in particular to a high-reliability turbine.

Background

A turbine, which is a fan in an engine of an automobile or an airplane, improves the performance of the engine by blowing fuel vapor into the engine using exhaust gas. The turbine is a rotary power machine which converts the energy of a flowing working medium into mechanical work. It is one of the main components of aircraft engines, gas turbines and steam turbines.

At present, an existing turbine generally comprises a hub disc and blades arranged on the hub disc, and due to different specifications of the blades, in order to ensure the universality of the turbine, the blades and the hub disc are detachably arranged in the prior art, so that the blades can be disassembled and assembled according to actual requirements, and the cost is reduced.

The utility model patent with publication number CN212690117U discloses a turbine dish and have turbine rotor of this turbine dish, including disk body and a plurality of with the disk body tenon that the disk body is supporting to be used, its characterized in that: be equipped with on the disk body with the disk body tongue-and-groove that the disk body tongue-and-groove matches, it is a plurality of the specification model of the turbine blade of disk body tongue-and-groove installation as required is divided into the multiunit, every group be equipped with the blade tongue-and-groove rather than the blade tongue-and-groove of corresponding turbine blade's blade tongue-and-groove on the disk body tongue-and-groove, during the turbine blade installation, the turbine blade assembles in the disk body tongue-and-groove of disk body through the disk body tongue-and-groove rather than corresponding to can realize the installation of different specification model turbine blades on same turbine disc, however, when assembling the disk body tongue-and-groove in the disk body, need adopt prior art's locating pin structure to fix a position, and operate comparatively troublesome, and the installation fastness is relatively poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high-reliability turbine, which is provided to solve the above problems, and has the advantages of convenient and simple positioning operation and good installation firmness.

The utility model realizes the aim through the following technical scheme, and the high-reliability turbine comprises a hub disc, wherein a plurality of blades are arranged on the hub disc, the hub disc comprises a disc core and a disc edge arranged on the outer peripheral wall of the disc core, the blades are detachably arranged on the disc edge through a locking structure, the locking structure comprises a tenon arranged at the tail end of each blade and a mortise arranged on the outer peripheral wall of the disc edge and matched with the tenon, a positioning through hole extending to the bottom of the disc edge is formed in the bottom wall of the mortise, a cavity is formed in the bottom of the tenon, locking bolts penetrating through the positioning through hole are slidably connected in the cavity, and locking screw sleeves are connected on the locking bolts in a threaded mode.

Through adopting above-mentioned technical scheme, because the blade passes through locking structure detachably and installs on the dish edge, and locking structure includes the tenon and reaches the tongue-and-groove with the tenon matching, positioning hole has been seted up on the diapire of tongue-and-groove, and there is the locking bolt in tenon bottom sliding connection, then when installing the blade on the hub disk, can promote locking bolt earlier and take in inside the cavity, then transversely insert the tenon inside the tongue-and-groove, until tenon and tongue-and-groove butt joint finish the back, the positioning hole can be aimed at to the locking bolt and insert and run through positioning hole under the action of gravity, then can realize the locking to the locking bolt through revolving soon locking swivel nut, thereby realize the firm connection of tenon and tongue-and-groove, positioning operation is comparatively convenient simple, and the installation fastness is better.

As a further arrangement of the utility model, a positioning groove for embedding the locking screw sleeve is formed in the bottom wall of the mortise, and the positioning groove is communicated with the positioning through hole.

Through adopting above-mentioned technical scheme, owing to seted up positioning groove on the diapire of tongue-and-groove, and communicate each other between positioning groove and the positioning hole, then can twist the locking swivel nut soon until will locking swivel nut screw in positioning groove inside, then spacing through the hiding of positioning groove to the locking swivel nut, can avoid the mistake to touch the locking swivel nut and lead to the locking inefficacy to the stability of locking has effectively been guaranteed, makes the tenon comparatively reliable with being connected of tongue-and-groove.

According to the further arrangement of the utility model, an elastic gasket is bonded on the inner bottom wall of the positioning groove, and the elastic gasket is made of a rubber material.

Through adopting above-mentioned technical scheme, owing to it has the spring washer to bond on positioning groove's interior diapire, and the spring washer adopts rubber materials to make, then inside back at locking swivel nut screw in positioning groove, can constantly extrude the spring washer, then the spring washer can take place elastic deformation thereupon, thereby can reverse exert for outside thrust of locking swivel nut, thereby make the inside butt of locking swivel nut at positioning groove more firm, be difficult for rocking, effectively promoted locking swivel nut and locking bolt's firm in connection.

As a further arrangement of the utility model, the top of the locking screw sleeve is provided with a sealing cover, and the top surface of the sealing cover is provided with a cross groove.

By adopting the technical scheme, the sealing cover is arranged at the top of the locking screw sleeve, and the cross groove is formed in the top surface of the sealing cover, so that when the locking screw sleeve needs to be screwed, the cross screwdriver can be inserted into the cross groove to apply force, the locking screw sleeve can be easily screwed, the cross groove is arranged to provide a force application point for the operation of screwing the locking screw sleeve, and the operation becomes easier and more labor-saving.

As a further arrangement of the utility model, a sliding groove is arranged on the inner peripheral wall of the cavity along the length direction, and a sliding block which is connected in the sliding groove in a sliding manner is arranged on the locking bolt.

Through adopting above-mentioned technical scheme, owing to seted up the spout along length direction on the internal perisporium of cavity, and be provided with the slider of sliding connection in the inside spout on locking bolt, then spacing through the spout to the slider, can guarantee that locking bolt slides from top to bottom smoothly inside the cavity, and can not take place to rotate to follow-up and locking swivel nut's connection effect has effectively been guaranteed.

As a further arrangement of the utility model, the blade is made of a nickel-based superalloy material.

By adopting the technical scheme, the blade is made of the nickel-based high-temperature alloy material, and the nickel-based high-temperature alloy material has excellent impact resistance, corrosion resistance, high temperature resistance and oxidation resistance, so that the service life of the blade can be prolonged, and the turbine is more durable.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the blade is detachably arranged on the edge of the disc through the locking structure, when the blade is arranged on the hub disc, the locking bolt can be pushed to be taken in the cavity, then the tenon is transversely inserted into the mortise, until the tenon is butted with the mortise, the locking bolt can be aligned with the positioning through hole and inserted into and penetrate through the positioning through hole under the action of gravity, and then the locking bolt can be locked by screwing the locking screw sleeve, so that the tenon and the mortise are firmly connected, the positioning operation is convenient and simple, and the mounting firmness is good.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a partial cross-sectional view of the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4.

Reference numerals: 1. a blade; 2. a disc core; 3. coiling; 4. a tenon; 5. mortises; 6. positioning the through hole; 7. a cavity; 8. locking the bolt; 9. locking the threaded sleeve; 10. a positioning groove; 11. an elastic washer; 12. sealing the cover; 13. a cross groove; 14. a chute; 15. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a high-reliability turbine includes a hub plate, a plurality of blades 1 are disposed on the hub plate, the blades 1 are made of a nickel-based superalloy material, the hub plate includes a core 2 and a rim 3 disposed on an outer circumferential wall of the core 2, the blades 1 are detachably mounted on the rim 3 through a locking structure, the locking structure includes a tenon 4 disposed at a tail end of the blade 1 and a mortise 5 disposed on an outer circumferential wall of the rim 3 and matching with the tenon 4, a positioning through hole 6 extending to a bottom of the rim 3 is disposed on a bottom wall of the mortise 5, a cavity 7 is disposed at a bottom of the tenon 4, a locking bolt 8 for penetrating the positioning through hole 6 is slidably connected inside the cavity 7, a sliding groove 14 is disposed on an inner circumferential wall of the cavity 7 along a length direction, and a slider 15 slidably connected inside the sliding groove 14 is disposed on the locking bolt 8, the locking bolt 8 is connected with a locking threaded sleeve 9 in a threaded mode, a sealing cover 12 is arranged at the top of the locking threaded sleeve 9, a cross groove 13 is formed in the top face of the sealing cover 12, a positioning groove 10 used for embedding the locking threaded sleeve 9 is formed in the bottom wall of the mortise 5, the positioning groove 10 and the positioning through hole 6 are communicated with each other, an elastic washer 11 is bonded on the inner bottom wall of the positioning groove 10, and the elastic washer 11 is made of rubber materials.

Because blade 1 is installed on dish limit 3 through locking structure detachably, and locking structure includes tenon 4 and the tongue-and-groove 5 that matches with tenon 4, positioning hole 6 has been seted up on the diapire of tongue-and-groove 5, and sliding connection has locking bolt 8 in tenon 4 bottom, then when installing blade 1 on the hub plate, can promote locking bolt 8 earlier and take in inside cavity 7, then transversely insert tenon 4 inside tongue-and-groove 5, until tenon 4 and tongue-and-groove 5 butt joint finish the back, locking bolt 8 can aim at positioning hole 6 and insert and run through positioning hole 6 under the action of gravity, then can realize locking bolt 8's locking through revolving wrong locking swivel nut 9, thereby realize the firm connection of tenon 4 and tongue-and-groove 5, positioning operation is comparatively convenient simple, and the installation fastness is better.

Because the bottom wall of the mortise 5 is provided with the positioning groove 10 and the positioning groove 10 is communicated with the positioning through hole 6, the locking screw sleeve 9 can be screwed until the locking screw sleeve 9 is screwed into the positioning groove 10, the locking screw sleeve 9 can be prevented from being touched by mistake to cause locking failure through the hidden limit of the positioning groove 10 to the locking screw sleeve 9, thereby effectively ensuring the stability of locking, the connection between the tenon 4 and the mortise 5 is more reliable, and because the elastic gasket 11 is bonded on the inner bottom wall of the positioning groove 10 and is made of rubber materials, the elastic gasket 11 can be continuously extruded after the locking screw sleeve 9 is screwed into the positioning groove 10, the elastic gasket 11 can be elastically deformed accordingly, thereby being capable of reversely applying an outward thrust to the locking screw sleeve 9, thereby leading the butt of the locking screw sleeve 9 in the positioning groove 10 to be firmer, is not easy to shake, and effectively improves the connection firmness of the locking threaded sleeve 9 and the locking bolt 8.

Because the top of the locking screw sleeve 9 is provided with the sealing cover 12, and the top surface of the sealing cover 12 is provided with the cross groove 13, when the locking screw sleeve 9 needs to be screwed, a cross screwdriver can be inserted into the cross groove 13 to apply force, so that the locking screw sleeve 9 can be easily screwed, the cross groove 13 is set to provide a force application point for the operation of screwing the locking screw sleeve 9, and the operation becomes easier and more labor-saving.

Because the sliding groove 14 is formed in the inner peripheral wall of the cavity 7 along the length direction, and the sliding block 15 which is connected to the inside of the sliding groove 14 in a sliding mode is arranged on the locking bolt 8, the sliding block 15 is limited through the sliding groove 14, the locking bolt 8 can be guaranteed to slide up and down smoothly inside the cavity 7, and rotation cannot occur, and therefore the follow-up connection effect with the locking screw sleeve 9 is effectively guaranteed.

Because the blade 1 is made of the nickel-based high-temperature alloy material, the nickel-based high-temperature alloy material has excellent impact resistance, corrosion resistance, high temperature resistance and oxidation resistance, thereby prolonging the service life of the blade 1 and enabling the turbine to be more durable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high reliability turbine comprising a hub disc provided with a plurality of blades (1), characterized in that: hub disc includes core (2) and sets up dish limit (3) on core (2) periphery wall, install on dish limit (3) through locking structure detachably blade (1), locking structure is including setting up tenon (4) at blade (1) tail end and seting up mortise (5) on dish limit (3) periphery wall and match with tenon (4), set up positioning hole (6) that extend to dish limit (3) bottom on the diapire of mortise (5), cavity (7) have been seted up to tenon (4) bottom, the inside equal sliding connection of cavity (7) has locking bolt (8) that are used for running through positioning hole (6), threaded connection has locking swivel nut (9) on locking bolt (8).

2. A high reliability turbine according to claim 1, wherein: and a positioning groove (10) for embedding the locking screw sleeve (9) is formed in the bottom wall of the mortise (5), and the positioning groove (10) is communicated with the positioning through hole (6).

3. A high reliability turbine according to claim 2, wherein: an elastic gasket (11) is bonded on the inner bottom wall of the positioning groove (10), and the elastic gasket (11) is made of rubber materials.

4. A high reliability turbine according to claim 1, wherein: the top of the locking threaded sleeve (9) is provided with a sealing cover (12), and the top surface of the sealing cover (12) is provided with a cross groove (13).

5. A high reliability turbine according to claim 1, wherein: the inner peripheral wall of the cavity (7) is provided with a sliding groove (14) along the length direction, and the locking bolt (8) is provided with a sliding block (15) which is connected inside the sliding groove (14) in a sliding manner.

6. A high reliability turbine according to claim 1, wherein: the blade (1) is made of a nickel-based high-temperature alloy material.