CN203442071U

CN203442071U - Z-shaped structure used for accommodating g welding slag of hydraulic torque converter

Info

Publication number: CN203442071U
Application number: CN201320497798.6U
Authority: CN
Inventors: 殷学仙; 张筱琳; 朱纬; 孙丽英; 韩方方
Original assignee: Valeo Automotive Transmissions Systems Nanjing Co Ltd
Current assignee: Valeo Automotive Transmissions Systems Nanjing Co Ltd
Priority date: 2013-08-15
Filing date: 2013-08-15
Publication date: 2014-02-19
Anticipated expiration: 2023-08-15

Abstract

The utility model discloses a Z-shaped structure used for accommodating welding slag of a hydraulic torque converter. The Z-shaped structure comprises a pump impeller shell and a hydraulic torque converter shell which is welded with the pump impeller shell. A first step is machined outside the pump impeller shell. A second step is machined inside the hydraulic torque converter shell which corresponds to the pump impeller shell. When the pump impeller shell is welded with the hydraulic torque converter shell, the first step and the second step is combined to form a Z-shaped groove. The Z-shaped structure used for accommodating the welding slag of the hydraulic torque converter has following beneficial effects: on the condition that the cost of a stamping die is not increased; welding slag space is reserved to effectively accommodate the welding slag; service lifetimes of an oil pump, a transmission and the hydraulic torque converter are prolonged; machining and production are simple; costs of materials and equipment are not increased; cleanliness of ATF is ensured; and various faults generated by blocking of an oil channel are reduced.

Description

A kind of fluid torque converter holds Z-shaped groove structure for welding slag

Technical field

The utility model relates to a kind of automobile converter coupling, specifically the linkage structure of Pneumatic flat pushing valve pump impeller shell and fluid torque converter lid.

Background technique

The pump impeller shell of fluid torque converter and fluid torque converter lid are difference punch process, during assembling, adopt welding technique that both are connected, during welding, unavoidably can produce welding slag, in welding process, welding slag can enter in fluid torque converter by the narrow and small gap of pump impeller shell and fluid torque converter lid, accelerates the wearing and tearing of fluid torque converter and gearbox.

Model utility content

The purpose of this utility model is the deficiency existing for prior art, provides a kind of and reserves the fluid torque converter that welding slag space effectively holds welding slag and hold Z-shaped groove structure for welding slag.

For realizing above-mentioned model utility object, the technical solution adopted in the utility model is that a kind of fluid torque converter holds Z-shaped groove structure for welding slag, comprise pump impeller shell with its torque converter housing welding mutually, outside at pump impeller shell is processed with first step, inner side at the torque converter housing corresponding with it is processed with second step, when pump impeller shell and torque converter housing welding, first step and second step are combined into Z-type groove.

Described first step circle radius R5 is 51.477mm.

Described second step circle radius R3 is 51.477mm.

Converter coupling is mainly by cap assembly, pump impeller assembly, turbine assembly, lock-up clutch, guide wheel assembly five parts form, pump impeller shell in the fluid torque converter of the sealing of fluid torque converter in cap assembly lid and pump impeller assembly completes by welding, in fluid torque converter, there is automatic transmission fluid (ATF), play effect lubricated and that clean, ATF is at oil pump, in speed changer and fluid torque converter, circulate, must guarantee that it is clean, so in order to prevent entering of welding slag, the pump impeller shell of fluid torque converter and fluid torque converter lid respectively punching press complete after, the inner side of fluid torque converter lid corresponding thereto step of machining respectively in the outside of pump impeller shell, when both carry out assembly connection by welding, can form a Z-shaped groove structure, there is certain free space.This Z-shaped groove structure can effectively be held the welding slag that when welding produces, and avoids welding slag to enter in fluid torque converter, affect the turbidity test of hydraulic transmission oil, generation high temperature and the harm such as easy to wear.

Beneficial effect: the utility model is not in the situation that changing press tool and not increasing cost, reserve welding slag space and effectively hold welding slag, extend the working life of oil pump, speed changer and fluid torque converter, manufacturing is simple, do not increase raw material and equipment cost, guarantee the turbidity test of ATF, reduce because oil circuit stops up the various faults that cause.

Accompanying drawing explanation

Fig. 1 is the utility model torque converter housing structural representation;

Fig. 2 is the utility model pump impeller shell structure schematic diagram;

Fig. 3 is the linkage structure schematic diagram of the utility model torque converter housing and pump impeller shell, and in figure, 6 is soldering point.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, the present embodiment is implemented take technical solutions of the utility model under prerequisite, should understand these embodiments and only for the utility model is described, be not used in restriction scope of the present utility model.

As shown in Figure 1-Figure 3, a kind of fluid torque converter holds Z-shaped groove structure for welding slag, comprise pump impeller shell 1 with its torque converter housing welding mutually 2, in the outside of pump impeller shell 1, be processed with first step 2, in the inner side of the torque converter housing corresponding with it 2, be processed with second step 4, when pump impeller shell 1 and torque converter housing 2 welding, first step 3 and second step 4 are combined into Z-type groove 5.

In the present embodiment, it is that R1 is 51.177mm that physical dimension is respectively circle radius inside torque converter housing, the assembling step radius of a circle R2 of torque converter housing is 51.327mm, second step circle radius R3 is 51.477mm, the assembling step radius of a circle R4 of pump impeller shell is 51.327mm, first step circle radius R5 is 51.477mm, and the length L of Z-shaped groove is 1.5mm.

Claims

1. a fluid torque converter holds Z-shaped groove structure for welding slag, comprise pump impeller shell (1) with its torque converter housing welding mutually (2), it is characterized in that: in the outside of pump impeller shell (1), be processed with first step (3), in the inner side of the torque converter housing corresponding with it (2), be processed with second step (4), when pump impeller shell (1) and torque converter housing (2) welding, first step (3) and second step (4) are combined into Z-type groove (5).

2. a kind of fluid torque converter holds Z-shaped groove structure for welding slag according to claim 1, it is characterized in that: described first step (3) circle radius R5 is 51.477mm.

3. a kind of fluid torque converter holds Z-shaped groove structure for welding slag according to claim 1, it is characterized in that: described second step (4) circle radius R3 is 51.477mm.