CN217152868U

CN217152868U - Guide impeller for hydraulic torque converter

Info

Publication number: CN217152868U
Application number: CN202221117484.4U
Authority: CN
Inventors: 田青山
Original assignee: Linhai Cisco Electromechanical Co ltd
Current assignee: Linhai Cisco Electromechanical Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-08-09
Anticipated expiration: 2032-05-10

Abstract

The utility model provides a guide vane wheel for a hydraulic torque converter, which comprises an annular vane wheel main body and a shaft sleeve, wherein a plurality of vanes are integrally formed on the outer peripheral wall of the vane wheel main body; the impeller is characterized in that an annular caulking groove is formed in the inner peripheral wall of the impeller main body, and the shaft sleeve is coaxially and fixedly embedded in the annular caulking groove. The utility model has the characteristics of combine reasonable in design, be convenient for install.

Description

Guide impeller for hydraulic torque converter

Technical Field

The present invention relates to a torque converter, and more particularly, to a guide vane wheel for a torque converter.

Background

In general, a torque converter is provided between an engine and a transmission of an automatically shifting motor vehicle. The torque converter serves to transmit driving power of an engine to a transmission by using fluid (usually oil), and functions to transmit torque and convert torque.

Torque converter on the market, its inside impeller that leads generally adopts the integrative casting of aluminum alloy shaping, the higher axle sleeve of being made by the steel material of intensity of impeller's mid-mounting, the axle sleeve adopts the key-type connection with the mounting hole at impeller middle part, and both ends need install the jump ring in order to prevent that the axle sleeve from becoming flexible. The process of installing the clamp spring is time-consuming and labor-consuming, and relatively high in cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a guide vane wheel for a hydraulic torque converter, which has the characteristics of reasonable design and convenient installation.

In order to realize the purpose, the technical scheme of the utility model is that:

a guide impeller for a hydraulic torque converter comprises an annular impeller main body and a shaft sleeve, wherein a plurality of blades are integrally formed on the outer peripheral wall of the impeller main body; the impeller is characterized in that an annular caulking groove is formed in the inner peripheral wall of the impeller main body, and the shaft sleeve is coaxially and fixedly embedded in the annular caulking groove.

Preferably, the shaft sleeve and the impeller main body are assembled by adopting an integral casting process.

Through the technical scheme, the shaft sleeve is directly embedded into the impeller main body, so that the assembling and fixing processes are omitted, the time of manual operation is shortened, and the production efficiency is improved.

Preferably, the impeller main body comprises an outer ring and an inner ring, and the axial section of the outer ring is in the shape of an inwards concave arc; the axial depth of the inner ring is lower than that of the outer ring, and the annular caulking groove is positioned on the inner side of the inner ring.

Through above technical scheme, the outer lane of impeller main part is arc for the outside space of outer lane is bigger, thereby can be convenient for the circulation of liquid, guarantees the transmission of power.

Preferably, the tip of the blade is formed with a truncated surface.

Through above technical scheme, can increase the structural strength of blade, avoid its deformation.

Preferably, the blades are arranged in an inclined manner, and the thickness of the blades is gradually reduced from one end to the other end.

Through above technical scheme, can further promote the velocity of flow of liquid.

Preferably, the cut surface is provided with a diversion trench.

Preferably the width of the channels is greater than 1/2 the width of the outer end face of the blade.

Through above technical scheme, the guiding gutter can promote the clearance between blade and turbine and the pump impeller to reduce the resistance to liquid.

Preferably, the outer surface of the sleeve is provided with a groove.

Through above technical scheme, can avoid the axle sleeve not hard up.

The utility model discloses technical effect mainly embodies in following aspect:

1. the split type is changed into the integrated type, so that the assembly process is simplified, and the production efficiency is improved;

2. structural design is more reasonable, and structural strength is high, and is favorable to the transmission of power.

Drawings

FIG. 1 is a general schematic view of a guide vane wheel in an embodiment;

FIG. 2 is a sectional view of a guide vane wheel in the embodiment;

FIG. 3 is a schematic end view of a blade according to an embodiment.

Reference numerals: 1. an impeller body; 11. an outer ring; 12. an inner ring; 121. caulking grooves; 2. a shaft sleeve; 21. a groove; 3. a blade; 31. cutting the section; 32. and a diversion trench.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Referring to fig. 1 to 3, the present embodiment provides a guide vane wheel for a torque converter, which includes an annular vane wheel body 1 and a shaft sleeve 2, wherein a plurality of vanes 3 are integrally formed on an outer circumferential wall of the vane wheel body 1. The blades 3 are obliquely arranged and have a certain radian; the thickness of blade 3 reduces from one end to the other end gradually, not only can reduce the materials, can also reduce the space and occupy. The end of the blade 3 is formed with a section 31, a diversion trench 32 is arranged at the section 31, and the width of the diversion trench 32 is greater than 1/2 of the width of the outer end face of the blade 3.

The impeller main body 1 comprises an outer ring 11 and an inner ring 12, wherein the axial section of the outer ring 11 is in the shape of an inwards concave arc, the inner ring 12 is positioned on the inner side of the outer ring 11, and the axial depth of the inner ring is lower than that of the outer ring 11. An annular caulking groove 121 is formed in the inner circumferential wall of the inner ring 12, the shaft sleeve 2 is coaxially and fixedly embedded in the annular caulking groove 121, and the inner diameter of the shaft sleeve 2 is smaller than that of the annular caulking groove 121. The outer surface of the sleeve 2 is provided with a recess 21. The shaft sleeve 2 and the impeller main body 1 are assembled by adopting an integrated casting process, specifically, the shaft sleeve 2 is firstly placed into a mold, then molten aluminum is injected into the mold for molding, after cooling, the mold is opened, and a finished product is taken out. Due to the adoption of the integral casting process, molten aluminum can enter the groove 21 and is circumferentially limited to the shaft sleeve 2 after being cooled, so that the stability of the shaft sleeve 2 is ensured.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A guide impeller for a hydraulic torque converter is characterized by comprising an annular impeller main body (1) and a shaft sleeve (2), wherein a plurality of blades (3) are integrally formed on the outer peripheral wall of the impeller main body (1); the impeller is characterized in that an annular caulking groove (121) is formed in the inner peripheral wall of the impeller main body (1), and the shaft sleeve (2) is coaxially and fixedly embedded in the annular caulking groove (121).

2. The impeller of the hydraulic torque converter is characterized in that the shaft sleeve (2) and the impeller body (1) are assembled by adopting an integral casting process.

3. The impeller for the torque converter as claimed in claim 1, wherein the impeller body (1) comprises an outer ring (11) and an inner ring (12), the outer ring (11) has an axial cross section in the shape of an inwardly concave circular arc, the inner ring (12) has an axial depth lower than that of the outer ring (11), and the annular caulking groove (121) is located inside the inner ring (12).

4. Guide vane wheel for a hydrodynamic torque converter, according to claim 1, characterized in that the end of the vane (3) is formed with a truncated surface (31).

5. The impeller according to claim 4, wherein the blades (3) are inclined and have a thickness that decreases from one end to the other.

6. Guide vane wheel for a hydrodynamic torque converter, according to claim 4, characterized in that the cut-off surface (31) is provided with guide grooves (32).

7. The impeller of claim 6, wherein the width of the guide groove (32) is greater than 1/2 of the width of the outer end surface of the blade (3).

8. The impeller of a hydrodynamic torque converter according to claim 1, characterized in that the outer surface of the sleeve (2) is provided with grooves (21).