CN213928463U

CN213928463U - Nozzle ring assembly

Info

Publication number: CN213928463U
Application number: CN202022818612.5U
Authority: CN
Inventors: 曾加萍; 李太团; 何松建
Original assignee: Suzhou Nuoxun Auto Parts Co ltd
Current assignee: Suzhou Nuoxun Auto Parts Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-10
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a nozzle cascade subassembly, it includes the mounting disc, dial the driving disk and set up respectively in a plurality of blades and the shift fork of mounting disc both sides, dial the dish and be on a parallel with the mounting disc setting and with the shift fork homonymy, the one end cooperation that the mounting disc was passed in the pivot of blade is connected with the shift fork, the other end and the dial drive of shift fork are connected, be provided with spacing gyro wheel on the mounting disc, spacing gyro wheel sets up in the inner circle of dial the driving disk through the spacer pin activity of perpendicular to mounting disc, be equipped with the ring channel on the mounting disc, dial bottom circumference evenly and be equipped with a plurality of spacing posts, spacing post bottom surface is equipped with the mounting groove, be equipped with the ball in. The utility model discloses a set up a plurality of spacing posts stirring the dish bottom, the corresponding ring channel that sets up on the mounting disc, spacing post are injectd at the ring channel internal motion, lead to and set up spacing gyro wheel, can axial and radial positioning to stirring the dish, make stirring the dish location more firm.

Description

Nozzle ring assembly

Technical Field

The utility model relates to a nozzle cascade technical field, in particular to nozzle cascade subassembly.

Background

The nozzle ring is installed in turbocharger for the exhaust gas volume that the control enters into turbine wheel is in order to control turbocharger's rotational speed, rotates through the dial, and the dial drives the shift fork and rotates, drives the blade through the round pin axle and rotates when the shift fork rotates, can change the blade angle, adjust the air current cross-section through the rotation of blade, thereby adjust the air input.

Chinese patent No. 201020144255.2 discloses a double-disc supported variable cross-section nozzle ring assembly, which comprises a driving disc, a mounting disc, blades, a supporting disc, a notch, a driving block, a supporting wheel, a supporting shaft and a shifting fork, wherein the supporting shaft is inserted into the mounting disc, the supporting wheel is sleeved on the supporting shaft, and the driving disc is sleeved on the supporting wheel to be fixed axially and radially; the driving block is welded in the driving disc and connected with the driving disc into a whole, and a notch is arranged at the position of the driving disc, which corresponds to the driving block; the tail part of the blade is arranged in the mounting disc and welded with the shifting fork, and the head part of the blade is inserted into the supporting disc. However, the toggle disc of the double-disc-supported variable-section nozzle ring assembly is not reliably positioned in the axial direction and the radial direction, and is easy to deform and move when the load is large at high temperature, so that the toggle disc is not stably positioned.

To this end, it is desirable to provide a nozzle ring assembly that solves the above-mentioned problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a nozzle ring subassembly that stir a set location is firm.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a nozzle ring assembly, its include the mounting disc, dial the driving disk and set up respectively in a plurality of blades and the shift fork of mounting disc both sides, dial the driving disk be on a parallel with the mounting disc set up and with the shift fork homonymy, the pivot of blade is passed the mounting disc with the one end cooperation of shift fork is connected, the other end of shift fork with dial the disc drive and connect, be provided with spacing gyro wheel on the mounting disc, spacing gyro wheel passes through the perpendicular to the spacer pin activity of mounting disc set up in the inner circle of dial the driving disk, be equipped with the ring channel on the mounting disc, dial bottom circumference of the disc portion and evenly be equipped with a plurality of spacing posts, spacing post bottom surface is equipped with the mounting groove, be equipped with the ball in the mounting groove, spacing post passes through the ball is in the ring channel motion.

And a gap is reserved between the outer wall of the limiting column and the inner wall of the annular groove.

The spacing post sets up threely at least, just spacing post with dial the dish and set up for integrated into one piece.

The limiting idler wheel is provided with a groove, the poking disc is embedded into the groove, the limiting idler wheel is rotatably sleeved on the limiting pin, the lower end of the limiting pin is provided with an external thread, a threaded hole is correspondingly formed in the mounting disc, and the external thread at the lower end of the limiting pin is meshed with the threaded hole.

The blade includes blade head and blade afterbody, the blade head with mounting disc swing joint, the blade afterbody with mounting disc fixed connection, dial driving disk 2 through the shift fork drives the blade head rotates.

Still include a turbine bush and a hou gai, the turbine bush with back lid all set up in deviating from of mounting disc one side of stirring the dish, back lid with the mounting disc is connected just back lid with leave the clearance between the mounting disc, back lid is flat, the turbine bush with back lid integrated into one piece sets up.

The turbine bush is sleeve-shaped, an annular groove is formed in the outer peripheral wall of the turbine bush, and a piston ring is arranged in the annular groove.

Compared with the prior art, the beneficial effects of the utility model are that: the bottom of the toggle plate is provided with a plurality of limiting columns, the mounting plate is correspondingly provided with an annular groove, and the limiting columns are limited in the annular groove to move so as to radially position the toggle plate; the universal shifting board is provided with the limiting idler wheel, so that the shifting board can be axially positioned, and the shifting board is positioned more stably.

Drawings

FIG. 1 is a schematic view of a nozzle ring assembly of the present invention;

FIG. 2 is a cross-sectional view of the nozzle ring assembly of FIG. 1;

FIG. 3 is an enlarged view of area A in FIG. 2;

fig. 4 is an assembly view of the mounting plate and the blade in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 4, the utility model relates to a nozzle ring subassembly, it includes mounting disc 1, dial driving disk 2 and set up respectively in a plurality of blades 3 and shift fork 4 of 1 both sides of mounting disc, dial driving disk 2 be on a parallel with the setting of mounting disc 1 and with the 4 homonymies of shift fork, the one end cooperation that mounting disc 1 and shift fork 4 were passed in blade 3's pivot is connected, shift fork 4's the other end is connected with 2 drives of dial disc, be provided with spacing gyro wheel 5 on the mounting disc 1, spacing gyro wheel 5 sets up in the inner circle of dial driving disk 2 through the 6 activities of spacer pin of perpendicular to mounting disc 1, be equipped with ring channel 11 on the

mounting disc

1, 2 bottom circumference of dial disc evenly are equipped with a plurality of spacing posts 21, spacing post 21 bottom surface is equipped with mounting groove 22, be equipped with ball 23 in the mounting groove 22, spacing post 21 is through ball 23 reciprocating motion in ring channel 11.

The outer wall of the limiting column 21 has a gap with the inner wall of the annular groove 11, so that the limiting column 21 is prevented from contacting with the inner wall of the annular groove 11 to generate friction, and the rotation of the poking disc 2 is facilitated. The number of the limiting columns 21 is at least three, and the limiting columns 21 and the poking plate 2 are of an integrally formed structure.

Referring to fig. 3, the limiting roller 5 is provided with a groove 51, and the dial 2 is embedded in the groove 51. The limiting idler wheel 5 is rotatably sleeved on the limiting pin 6, the lower end of the limiting pin 6 is provided with an external thread, a threaded hole is correspondingly formed in the mounting disc 1, and the external thread at the lower end of the limiting pin 6 is meshed with the threaded hole. The limiting pin 6 is fixed with the mounting disc 1 through external threads at the lower end of the limiting pin, and the limiting pin 6 can be screwed down and operated through automatic devices such as a mechanical arm.

In this embodiment, there are three limiting rollers 5, and the three limiting rollers 5 are uniformly distributed on the inner circle circumference of the poking disc 2. Through three spacing simultaneously, guarantee to dial the installation of driving disk 2. Here, because the spacer pin 6 is fixed in on the mounting disc 1, spacing gyro wheel 5 has carried on spacingly for spacing gyro wheel 5 is difficult for deviating from spacer pin 6, so can rotate for mounting disc 1 and carry out the rigidity to dial 2 through spacing gyro wheel 5, dial disc 2.

Referring to fig. 4, the blade 3 includes a blade head 31 and a blade tail 32, the blade head 31 is movably connected to the mounting plate 1, the blade tail 32 is fixedly connected to the mounting plate 1, and the shifting plate 2 drives the blade head 31 to rotate through the shifting fork 4. The vanes 3 adopt a semi-rotating structure with fixed vane tails 32 and adjustable vane heads 31, wherein the fixed vane tails 32 can ensure that the inlet angle of the airflow entering the turbine is unchanged, and the adjustable vane heads 31 can change the throat area of the nozzle ring, thereby improving the efficiency and the adjusting range of the turbine end of the supercharger, reducing the oil consumption and the smoke intensity, improving the economy of the engine and improving the emission.

Referring to fig. 2, the nozzle ring further comprises a turbine bushing 7 and a rear cover 8, the turbine bushing 7 and the rear cover 8 are both arranged on one side of the mounting disc 1 deviating from the poking disc 2, the rear cover 8 is connected with the mounting disc 1, a gap is reserved between the rear cover 8 and the mounting disc 1, the rear cover 8 is flat, the rear cover 8 is parallel to one end face of the mounting disc 1 deviating from the poking disc 2, and the turbine bushing 7 and the rear cover 8 are integrally formed.

Referring to fig. 2, two ends of a bolt 9 are respectively connected to the rear cover 8 and the mounting plate 1, a distance sleeve 10 is fixedly sleeved on the bolt 9, the distance sleeve 10 is located between an end face of the rear cover 8, which is far away from the dial plate 2, of the mounting plate 1, two ends of the distance sleeve 10 respectively abut against the rear cover 8 and the mounting plate 1, the distance sleeve 10 enables a gap to be formed between the rear cover 8 and the mounting plate 1, the vane 3 is arranged in the gap, the turbine liner 7 is in a sleeve shape, an annular groove 71 is provided on the outer peripheral wall of the turbine liner 7, a piston ring 72 is provided in the annular groove 71, thus, when the nozzle ring is installed, the turbine bush 7 is assembled on the turbocharger volute, the turbocharger volute is provided with an assembling hole, a piston groove is arranged in the assembling hole, and after the turbine bush 7 is assembled in the assembling hole, the piston ring 72 is embedded in the piston groove, so that the nozzle ring is firmly installed.

The utility model arranges a plurality of limiting columns 21 at the bottom of the toggle plate 2, the mounting plate 1 is correspondingly provided with the annular groove 11, the limiting columns 21 are limited in the annular groove 11 to move, and the toggle plate 2 can be radially positioned; lead to and set up spacing gyro wheel 5, to stirring dish 2 and can axial positioning, make to stir that dish 2 location is more firm.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A nozzle ring assembly, its characterized in that: it includes mounting disc, dial driving disk and set up respectively in a plurality of blades and the shift fork of mounting disc both sides, dial the driving disk be on a parallel with the mounting disc set up and with the shift fork homonymy, the pivot of blade is passed the mounting disc with the one end cooperation of shift fork is connected, the other end of shift fork with dial the drive connection of dish, be provided with spacing gyro wheel on the mounting disc, spacing gyro wheel passes through the perpendicular to the spacer pin activity of mounting disc set up in dial in the inner circle of driving disk, be equipped with the ring channel on the mounting disc, dial bottom circumference of the dish and evenly be equipped with a plurality of spacing posts, spacing post bottom surface is equipped with the mounting groove, be equipped with the ball in the mounting groove, spacing post passes through the ball is in the ring channel internal motion.

2. The nozzle ring assembly of claim 1, wherein: and a gap is reserved between the outer wall of the limiting column and the inner wall of the annular groove.

3. The nozzle ring assembly of claim 2, wherein: the spacing post sets up threely at least, just spacing post with dial the dish and set up for integrated into one piece.

4. The nozzle ring assembly of claim 1, wherein: the limiting idler wheel is provided with a groove, the poking disc is embedded into the groove, the limiting idler wheel is rotatably sleeved on the limiting pin, the lower end of the limiting pin is provided with an external thread, a threaded hole is correspondingly formed in the mounting disc, and the external thread at the lower end of the limiting pin is meshed with the threaded hole.

5. The nozzle ring assembly of claim 1, wherein: the blade includes blade head and blade afterbody, the blade head with mounting disc swing joint, the blade afterbody with mounting disc fixed connection, dial driving disk 2 through the shift fork drives the blade head rotates.

6. The nozzle ring assembly of claim 1, wherein: still include a turbine bush and a hou gai, the turbine bush with back lid all set up in deviating from of mounting disc one side of stirring the dish, back lid with the mounting disc is connected just back lid with leave the clearance between the mounting disc, back lid is flat, the turbine bush with back lid integrated into one piece sets up.

7. The nozzle ring assembly of claim 6, wherein: the peripheral wall of the turbine bushing is provided with an annular groove, and a piston ring is arranged in the annular groove.