CN213360209U - Major-minor type oil pan - Google Patents

Abstract

The utility model discloses a main and auxiliary oil pan, which mainly comprises a main oil pan and an auxiliary oil pan, wherein the side wall surface of the main oil pan is provided with a hole, and the auxiliary oil pan is sleeved in the hole from the inner cavity of the main oil pan; the edge of the auxiliary oil pan is designed with a flanging structure, and the flanging is tightly attached to the inner wall of the main oil pan; and two auxiliary oil pans are arranged and respectively welded on the openings on the two side wall surfaces of the main oil pan. Through this design, it is with high costs effectively to solve traditional concatenation formula oil drain pan mould of opening, and the crisscross overlap joint of casing leads to the crisscross irregularity of welding seam, problem that the welding seam quality is low.

Description

Major-minor type oil pan

Technical Field

The utility model relates to an engine parts technical field, concretely relates to major-minor oil pan of engine.

Background

The oil sump is a component of the engine, which is generally located at the bottom of the engine and mainly functions to close the crankcase and collect and store the lubricating oil in the engine. Along with the strengthening of each item performance of engine, the volume of requirement oil pan increases, has consequently appeared on certain punching press oil pan basis, combines other punching press casings on this oil pan through the mode of tailor-welding, forms the bigger oil pan of a new capacity. Referring to fig. 1 and 2, the conventional tailor-welded oil pan comprises an oil pan upper body 1, an oil pan middle body 2 and an oil pan lower body 3, all parts of which are formed by stamping with a die, as shown by arrows in fig. 3, the lap joints a and B of the oil pan upper body 1, the oil pan middle body 2 and the oil pan lower body 3 are welding positions, and the connecting parts of all the oil pans are required to be welded. Referring to fig. 1 to 4, the conventional tailor welded oil pan mainly has the following disadvantages: 1) the edges needing to be welded are long, and the welding seams are staggered and irregular, so that the welding rejection rate is high, and the quality of the welding seams is low. Thereby the product cost is high and the failure rate is high; 2) at least three molds are required for manufacturing, and the manufacturing cost is high.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a major-minor formula oil pan to above-mentioned technical problem to solve traditional concatenation formula oil pan and open the mould with high costs, the crisscross overlap joint of casing leads to the crisscross irregularity of welding seam, problem that the welding seam quality is low.

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

a main oil sump and an auxiliary oil sump mainly comprise the main oil sump and the auxiliary oil sump, wherein a hole is formed in the side wall surface of the main oil sump, and the auxiliary oil sump is sleeved into the hole from the inner cavity of the main oil sump; the edge design of vice oil pan has the turn-ups structure, and the turn-ups pastes tight main oil pan inner wall.

Furthermore, the number of the auxiliary oil pans is two, and the two auxiliary oil pans are respectively and fixedly installed on the open holes on the two side wall surfaces of the main oil pan.

Further, the auxiliary oil pan is circumferentially welded and fixed along the seam outside the main oil pan.

Further, an oil discharge port is arranged at the bottom of the main oil bottom shell.

Further, the edge of the main oil pan is provided with a flanging structure.

The utility model has the advantages of compared with the prior art:

(1) the design of vice oil pan has the turn-ups structure, can strengthen vice oil pan structural strength and welding seam intensity.

(2) The side face of the main oil pan is provided with a hole, and the auxiliary oil pan is installed in the hole in a one-way mode from the inside of the main oil pan, so that the flanging can be tightly attached to the inner wall of the main oil pan, the degree of freedom of the auxiliary oil pan in one direction is restrained, and the connection between the main oil pan and the auxiliary oil pan is more stable.

(3) The left auxiliary oil pan and the right auxiliary oil pan can be manufactured by the same set of die, so that the cost is saved.

(4) The joints between the main oil pan and the auxiliary oil pan are regular, welding is facilitated, the quality of welding seams is high, and the failure rate is low.

Drawings

FIG. 1 is a schematic diagram of a conventional tailor welded oil pan structure;

FIG. 2 is an exploded view of a conventional prior art tailor welded oil pan;

FIG. 3 is a cross-sectional view of a conventional prior art tailor welded oil pan;

FIG. 4 is a schematic illustration of the welding of a conventional tailor welded oil pan at the shell lap;

fig. 5 is a schematic structural view of the primary and secondary oil sumps according to the present invention;

fig. 6 is an exploded view of the primary and secondary oil sumps according to the present invention;

fig. 7 is a cross-sectional view of the primary and secondary oil sumps of the present invention;

fig. 8 is a schematic view of flanging welding for the primary and secondary oil sumps of the present invention.

Reference numerals: 1-an oil pan upper body; 2-oil pan middle body; 3-oil pan lower body; 4-a main sump; 5-auxiliary oil sump; 6-flanging; 7-oil discharge port.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment. It should be understood that the directions "up", "down", "left" and "right" in the following embodiments of the present invention are all based on the position of the corresponding drawing. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the present invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.

As shown in fig. 5 to 8, the main-auxiliary oil pan of the present invention mainly comprises a main oil pan 4 and two identical auxiliary oil pans 5. The main oil pan 4 and the auxiliary oil pan 5 are die stamping oil pans (one die for the main oil pan 4 and one die for the two auxiliary oil pans 5 during manufacturing), holes are formed in two side wall surfaces of the main oil pan 4, and the auxiliary oil pan 5 is sleeved into the holes from an inner cavity of the main oil pan 4. The edge of the auxiliary oil pan 5 is designed with a flanging 6 structure, the flanging 6 is tightly attached to the inner wall of the main oil pan 4 (as shown in fig. 8), so that the auxiliary oil pan 5 can only be taken out from the inside of the main oil pan 4 and can not be taken out from the outside, and then the auxiliary oil pan 5 is welded and fixed circumferentially along the seam on the outer side of the main oil pan 4, thereby forming a new oil pan structure. An oil drain port 7 is provided at the bottom of the main sump 4. The edge of the main oil pan 4 is provided with a flanging structure matched with the engine body. Through the utility model discloses a design, it is with high costs effectively to solve traditional concatenation formula oil drain pan drawing die utensil, and the crisscross overlap joint of casing leads to the crisscross irregularity of welding seam, problem that the welding seam quality is low.

The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention.

Claims (5)

1. A major-minor formula drain pan, its characterized in that: the oil pan mainly comprises a main oil pan and an auxiliary oil pan, wherein a hole is formed in the side wall surface of the main oil pan, and the auxiliary oil pan is sleeved into the hole from the inner cavity of the main oil pan; the edge design of vice oil pan has the turn-ups structure, and the turn-ups pastes tight main oil pan inner wall.

2. The primary and secondary sump of claim 1 wherein: and two auxiliary oil pans are arranged and are respectively and fixedly installed on the open holes on the two side wall surfaces of the main oil pan.

3. The master-slave type oil pan of claim 2, wherein: the auxiliary oil pan is welded and fixed on the periphery of the main oil pan along the seam on the outer side of the main oil pan.

4. The primary and secondary sump of claim 1 wherein: an oil discharge port is arranged at the bottom of the main oil bottom shell.

5. The master-slave sump according to claim 4, wherein: the edge of the main oil pan is provided with a flanging structure.

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