CN215718985U

CN215718985U - Turbine shaft for engine supercharger

Info

Publication number: CN215718985U
Application number: CN202122084359.XU
Authority: CN
Inventors: 林海
Original assignee: Wuxi Yuexin Power Technology Co ltd
Current assignee: Wuxi Yuexin Power Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-01
Anticipated expiration: 2031-09-01

Abstract

The utility model belongs to the field of turbine shafts, in particular to a turbine shaft for an engine supercharger, which aims at solving the problems that the existing turbine shaft has higher difficulty in replacing ball bearings, higher maintenance cost and inconvenience in positioning and installing an air inlet pipe and an exhaust pipe on the turbine shaft and influences the use effect, and provides the following scheme, wherein the turbine shaft comprises an air inlet turbine shaft and an exhaust turbine shaft, one end of the air inlet turbine shaft, which is close to the exhaust turbine shaft, is fixedly provided with a same installation shaft, one end of the air inlet turbine shaft, which is far away from the exhaust turbine shaft, is provided with positioning grooves, and the inner wall of one side, which is close to the two positioning grooves, is fixedly provided with positioning blocks. The use effect is good.

Description

Turbine shaft for engine supercharger

Technical Field

The utility model relates to the technical field of turbine shafts, in particular to a turbine shaft for an engine supercharger.

Background

The turbine shaft, Bearing in english, appears to be a simple metal tube, but in practice it is a precision part with 120000 to 160000 rpm rotation and ultra high temperature. The fine processing tolerance and the deep material application and treatment are the most core technologies of all turbine factories.

The existing turbine shaft has the defects of high difficulty in replacing ball bearings, high maintenance cost and inconvenience in positioning and mounting an air inlet pipe and an exhaust pipe on the turbine shaft, and influences the use effect, so the turbine shaft for the engine supercharger is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the difficulty of replacing a ball bearing of a turbine shaft is high, the maintenance cost is high, an air inlet pipe and an exhaust pipe are not convenient to position and install on the turbine shaft, and the use effect is influenced in the prior art, and provides the turbine shaft for the engine supercharger.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a turbine shaft for engine supercharger, includes the turbine shaft that admits air and the turbine shaft that exhausts, the one end fixed mounting that the turbine shaft that admits air and the turbine shaft that exhausts are close to each other has same installation axle, the constant head tank has all been seted up to the one end that the turbine shaft that admits air and the turbine shaft that exhausts kept away from each other, and equal fixed mounting has the locating piece on the one side inner wall that two constant head tanks are close to each other, and the welding groove has all been seted up to one side that two locating pieces were kept away from each other, and the inside of two welding grooves all welds the cross axle, and the one end that two cross axles kept away from each other extends to respectively the turbine shaft that admits air and the one end that the turbine shaft that exhausts kept away from each other.

Preferably, in order to facilitate the operation of separating the installation shaft from the air inlet turbine shaft and the exhaust turbine shaft, a first connecting ring disc and a second connecting ring disc are respectively and fixedly installed on the outer sides of the air inlet turbine shaft and the exhaust turbine shaft, two fixing ring discs are fixedly installed on the outer sides of the installation shaft, and one sides, far away from each other, of the two fixing ring discs are respectively and fixedly connected with one sides, close to each other, of the first connecting ring disc and the second connecting ring disc.

Preferably, in order to facilitate the installation axle to dismantle, all offer a plurality of screws that are the annular and arrange on two retaining ring dishes, the equal threaded connection in inside of a plurality of screw holes has the bolt, one end that a plurality of bolts kept away from each other runs through one side that a connecting ring dish and No. two connecting ring dishes kept away from each other respectively and extends to one side that a connecting ring dish and No. two connecting ring dishes kept away from each other respectively, and the equal threaded connection in the outside of a plurality of bolts has the nut.

Preferably, in order to facilitate the positioning of the installation positions of the air inlet turbine and the exhaust turbine, positioning rings are fixedly installed on the outer sides of the air inlet turbine shaft and the exhaust turbine shaft, and the two positioning rings are respectively located on one sides, far away from each other, of the first connecting ring disc and the second connecting ring disc.

Preferably, in order to facilitate the location of the mounting positions of the air inlet pipe and the exhaust pipe, two positioning columns symmetrically arranged are fixedly mounted at one ends of the air inlet turbine shaft and the exhaust turbine shaft which are far away from each other, and buffer gaskets are movably sleeved on the two positioning columns on the air inlet turbine shaft and the exhaust turbine shaft.

Preferably, in order to improve the transmission reliability, the transverse shaft, the positioning block, the welding groove and the air inlet turbine shaft are concentrically arranged, an external thread is arranged on the outer side of the transverse shaft, and a soft gasket is movably sleeved on the outer side of the transverse shaft.

The utility model has the beneficial effects that: the air inlet turbine shaft and the exhaust turbine shaft are respectively used for installing an air inlet turbine and an exhaust turbine, the installation positions of the air inlet turbine and the exhaust turbine can be positioned through the two positioning rings, the installation efficiency is improved, the joint of the air inlet turbine shaft and the exhaust turbine shaft is butted by using a first connecting ring disc and a second connecting ring disc, the installation shaft, the first connecting ring disc and the second connecting ring disc are fixed through the bolts and the nuts, the ball bearing is installed on the installation shaft, when the ball bearing is replaced, the nuts are disassembled by using an adaptive wrench, the bolts are drawn out, the ball bearing and the installation shaft are replaced, the transverse shafts are fixed on the air inlet turbine shaft and the exhaust turbine shaft in a welding mode, the two transverse shafts are respectively used for installing an air inlet pipe and an exhaust pipe, and compared with the turbine shaft of a conventional engine supercharger, the maintenance and the replacement of the ball bearing on the turbine shaft can be facilitated, the maintenance cost and difficulty are reduced, the air inlet pipe and the exhaust pipe can be conveniently positioned and installed, and the using effect is good;

in order to solve the problem that the air inlet pipe and the exhaust pipe are inconvenient to position when being installed, the installation positions of the air inlet pipe and the exhaust pipe can be conveniently positioned through the arranged positioning columns, and the installation efficiency of the air inlet pipe and the exhaust pipe is improved;

in order to solve the problem that the cross shaft is inconvenient to install, the positioning grooves are formed in the air inlet turbine shaft and the air outlet turbine shaft, the positioning blocks are arranged in the positioning grooves, and the welding grooves are formed in the positioning blocks, so that the cross shaft can be conveniently welded, and further subsequent operation is facilitated.

Drawings

FIG. 1 is a perspective view of a turbine shaft for an engine supercharger according to the present invention;

FIG. 2 is a side view of a retaining ring disk structure for a turbine shaft of an engine supercharger according to the present invention;

FIG. 3 is a side view of an intake turbine shaft configuration for a turbine shaft of an engine supercharger in accordance with the present invention;

FIG. 4 is an enlarged schematic view of a portion A of the turbine shaft of the supercharger of the engine shown in FIG. 1.

In the figure: the device comprises an air inlet turbine shaft 1, an air exhaust turbine shaft 2, a first connecting ring disc 3, a second connecting ring disc 4, a mounting shaft 5, a fixing ring disc 6, bolts 7, nuts 8, screw holes 9, a positioning ring 10, positioning columns 11, buffer gaskets 12, positioning grooves 13, positioning blocks 14, welding grooves 15, a transverse shaft 16, soft gaskets 17 and external threads 18.

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.

Example one

Referring to fig. 1-4, a turbine shaft for an engine supercharger comprises an intake turbine shaft 1 and an exhaust turbine shaft 2, the intake turbine shaft 1 and the exhaust turbine shaft 2 are respectively used for installing an intake turbine and an exhaust turbine, the intake turbine shaft 1 and the exhaust turbine shaft 2 are concentrically arranged, one end of the intake turbine shaft 1 close to one end of the exhaust turbine shaft 2 is fixedly provided with a same installation shaft 5, the installation shaft 5 is used for installing a ball bearing, in order to facilitate the operation of separating the installation shaft 5 from the intake turbine shaft 1 and the exhaust turbine shaft 2, the outer sides of the intake turbine shaft 1 and the exhaust turbine shaft 2 are respectively fixedly provided with a first connection ring disc 3 and a second connection ring disc 4, the outer side of the installation shaft 5 is fixedly provided with two fixed ring discs 6, the two fixed ring discs 6 are tightly contacted with the first connection ring disc 3 and the second connection ring disc 4, one side, far away from each other, of each of the two fixed ring discs 6 is fixedly connected with one side, close to each other, of the first connecting ring disc 3 and the second connecting ring disc 4 respectively, in order to facilitate the detachment of the installation shaft 5, a plurality of screw holes 9 are formed in each of the two fixed ring discs 6 and are distributed in an annular shape, in order to ensure the installation reliability, at least four screw holes 9 are formed, bolts 7 are connected to the inner portions of the plurality of screw holes 9 in a threaded manner, one ends, far away from each other, of the plurality of bolts 7 penetrate through one side, far away from each other, of the first connecting ring disc 3 and the second connecting ring disc 4 respectively and extend to one side, far away from each other, of the first connecting ring disc 3 and the second connecting ring disc 4 respectively, nuts 8 are connected to the outer sides of the plurality of bolts 7 in a threaded manner, the nuts 8 are used for fixing the bolts 7, positioning grooves 13 are formed in one ends, far away from each other, of the air inlet turbine shaft 1 and the exhaust turbine shaft 2, and the positioning grooves 13 are obtained by milling, equal fixed mounting has a locating piece 14 on the one side inner wall that two constant head tanks 13 are close to each other, locating piece 14 is cylindrical setting, welding groove 15 has all been seted up to one side that two locating pieces 14 kept away from each other, the size of welding groove 15 and the size phase-match of cross axle 16, cross axle 16 has all been welded in the inside of two welding grooves 15, the one end that two cross axles 16 kept away from each other extends to the one end that intake turbine shaft 1 and exhaust turbine shaft 2 kept away from each other respectively.

Example two

The following further improvements are made on the basis of the first embodiment:

in the utility model, in order to position the mounting positions of the air inlet turbine and the exhaust turbine, positioning rings 10 are fixedly mounted on the outer sides of the air inlet turbine shaft 1 and the exhaust turbine shaft 2, the two positioning rings 10 are respectively positioned on the sides of the first connecting ring disc 3 and the second connecting ring disc 4 which are far away from each other, and the distances from the two positioning rings 10 to the ends of the first turbine shaft 1 and the second turbine shaft 2 are consistent.

In the utility model, in order to position the installation positions of the air inlet pipe and the exhaust pipe conveniently, two positioning columns 11 which are symmetrically arranged are fixedly arranged at the ends, away from each other, of the air inlet turbine shaft 1 and the exhaust turbine shaft 2, the two positioning columns 11 at the same side are longitudinally arranged, buffer gaskets 12 are movably sleeved on the two positioning columns 11 on the air inlet turbine shaft 1 and the exhaust turbine shaft 2 respectively, in order to improve the transmission reliability, a transverse shaft 16, a positioning block 14, a welding groove 15 and the air inlet turbine shaft 1 are concentrically arranged, an external thread 18 is arranged on the outer side of the transverse shaft 16, the external thread 18 is used for fixing, a soft gasket 17 is movably sleeved on the outer side of the transverse shaft 16, and the soft gasket 17 plays a role in starting protection.

In the utility model, the air inlet turbine shaft 1 and the exhaust turbine shaft 2 are respectively used for installing an air inlet turbine and an exhaust turbine, the installation positions of the air inlet turbine and the exhaust turbine can be located through the two locating rings 10, the installation efficiency is improved, the connection position of the air inlet turbine shaft 1 and the exhaust turbine shaft 2 is butted by using the first connecting ring disc 3 and the second connecting ring disc 4, the installation shaft 5, the first connecting ring disc 3 and the second connecting ring disc 4 are fixed through the bolts 7 and the nuts 8, the ball bearing is installed on the installation shaft 5, when the ball bearing is replaced, only the nuts 8 need to be detached by using the adaptive wrench, the bolts 7 are drawn out, the ball bearing and the installation shaft 5 are replaced, the transverse shaft 16 is fixed on the air inlet turbine shaft 1 and the exhaust turbine shaft 2 in a welding mode, and the two transverse shafts 16 are respectively used for installing an air inlet pipe and an exhaust pipe, compared with the conventional turbine shaft of the engine supercharger, the ball bearing on the turbine shaft can be maintained and replaced conveniently, the maintenance cost and difficulty are reduced, the positioning and installation of the air inlet pipe and the exhaust pipe can be facilitated, and the using effect is good.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a turbine shaft for engine supercharger, includes turbine shaft (1) and exhaust turbine shaft (2) of admitting air, the one end fixed mounting that turbine shaft (1) and exhaust turbine shaft (2) are close to each other that admits air has same installation axle (5), constant head tank (13) have all been seted up to the one end that turbine shaft (1) and exhaust turbine shaft (2) kept away from each other, and equal fixed mounting has locating piece (14) on the one side inner wall that two constant head tanks (13) are close to each other, and welding groove (15) have all been seted up to one side that two locating pieces (14) kept away from each other, and the inside of two welding grooves (15) all welds cross axle (16), and the one end that two cross axles (16) kept away from each other extends to respectively the one end that turbine shaft (1) and exhaust turbine shaft (2) kept away from each other.

2. The turbine shaft for the engine supercharger according to claim 1, wherein a first connecting ring disc (3) and a second connecting ring disc (4) are fixedly mounted on the outer sides of the air inlet turbine shaft (1) and the air outlet turbine shaft (2) respectively, two fixing ring discs (6) are fixedly mounted on the outer side of the mounting shaft (5), the number of the fixing ring discs (6) is two, and one sides, far away from each other, of the two fixing ring discs (6) are fixedly connected with one sides, close to each other, of the first connecting ring disc (3) and the second connecting ring disc (4) respectively.

3. The turbine shaft for the engine supercharger according to claim 2, wherein a plurality of screw holes (9) are formed in each of the two fixing ring discs (6) and arranged in an annular shape, bolts (7) are connected to the insides of the screw holes (9) in a threaded manner, one ends of the bolts (7) far away from each other respectively penetrate through one sides of the first connecting ring disc (3) and the second connecting ring disc (4) far away from each other and respectively extend to one sides of the first connecting ring disc (3) and the second connecting ring disc (4) far away from each other, and nuts (8) are connected to the outsides of the bolts (7) in a threaded manner.

4. The turbine shaft for an engine supercharger according to claim 1, characterised in that a positioning ring (10) is fixedly mounted on the outer side of each of the intake turbine shaft (1) and the exhaust turbine shaft (2), and the two positioning rings (10) are respectively positioned on the sides of the first connecting ring disc (3) and the second connecting ring disc (4) which are far away from each other.

5. The turbine shaft for the engine supercharger as claimed in claim 1, wherein two positioning columns (11) which are symmetrically arranged are fixedly mounted at the ends of the intake turbine shaft (1) and the exhaust turbine shaft (2) which are far away from each other, and buffer gaskets (12) are movably sleeved on the two positioning columns (11) on the intake turbine shaft (1) and the exhaust turbine shaft (2).

6. The turbine shaft for the engine supercharger according to claim 1, wherein the transverse shaft (16), the positioning block (14), the welding groove (15) and the air inlet turbine shaft (1) are concentrically arranged, an external thread (18) is arranged on the outer side of the transverse shaft (16), and a soft gasket (17) is movably sleeved on the outer side of the transverse shaft (16).