Integrated oil pan assembly

Through laser welding and structural optimization, the stability and sealing issues of existing integrated oil pan assemblies have been resolved, achieving higher welding quality and sealing performance.

CN224049283UActive Publication Date: 2026-03-27RUIAN QIANGDA AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing integrated oil pan assembly has limited stability after welding and its sealing performance needs to be improved.

Method used

The housing and outer shell are connected by a ring welding method using laser welding, and a connecting part, guide part, filling gap and sealing strip are set between the housing and outer shell to enhance stability and sealing effect.

Benefits of technology

This improved the welding quality and overall stability of the casing, while also enhancing the sealing effect and ensuring the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated oil pan assembly, relates to the field of oil pans, solves the problems that after an existing device is welded, the integrated stability is limited, and the sealing effect needs to be improved, and adopts the following scheme that the integrated oil pan assembly comprises a shell, the shell is an integrated arc-shaped shell, a connecting part is arranged on the inner side of the top of the shell, and the connecting part is connected with the shell. A shell part is arranged on the bottom side of the shell, a guide part is arranged on the bottom side of the shell, the shell and the shell part are welded through a welding part, the welding part is welded through a laser welding machine, the connecting part is a cylindrical column, and a threaded groove is formed in the center of the top face of the threaded column. The shell is provided with a top shell through the connecting part and the threaded groove in the connecting part; according to the integrated oil pan assembly, through the arrangement of the shell structure and the bottom side welding part of the shell structure, the overall quality of the welded shell can be guaranteed, the overall practicability can be guaranteed through the arrangement of the shell part, and the sealing effect can also be guaranteed through the sealing strip press fitting mode between the filling seam and the clamping strip.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil sump technical field, concretely is a kind of integrated oil sump assembly. BACKGROUND

[0002] Oil sump is the lower half of crankcase, also known as lower crankcase. The role is to close the outer shell of the crankcase as oil tank, prevent impurities from entering, and collect and store the lubricating oil flowing back from each friction surface of the diesel engine, dissipate part of the heat, prevent the oxidation of lubricating oil;

[0003] Through the search, the application book with patent application No. 202022799342.8 discloses an oil sump assembly, the oil sump assembly comprises: an oil sump; and an oil suction pipe, at least one of the oil sump and the oil suction pipe is provided with a welding rib, the welding rib is arranged along the extension direction of the oil suction pipe, the oil suction pipe is welded to the oil sump through the welding rib, a group of welding ribs is arranged on each side of the extension direction of the oil suction pipe, in at least part of the area in the extension direction of the oil suction pipe, each group of welding ribs has a plurality of welding ribs arranged side by side in the width direction of the oil suction pipe, the oil suction pipe is provided with a wing part, the wing part extends from the oil suction pipe to both sides of its extension direction. By adopting the above technical scheme, in at least part of the area in the extension direction of the oil suction pipe, especially in the area with relatively high stress, each group of welding ribs arranged between the oil suction pipe and the oil sump has a plurality of welding ribs, so that the welding strength of the oil suction pipe and the oil sump is relatively high, and the oil suction pipe is not easy to break;

[0004] The above application file ensures the welding strength by the arrangement of the oil sump, but due to the integrated arrangement, the overall pressure resistance is limited, secondly, the assembly stability and sealing performance between the top cover and the oil sump are limited, and the overall practicability needs to be improved.

[0005] Therefore, we propose an integrated oil sump assembly. CONTENT OF UTILITY MODEL

[0006] In view of the deficiencies of the prior art, the utility model provides an integrated oil sump assembly, which solves the problems of limited integrated stability and improved sealing effect after welding of the existing device.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: an integrated oil sump assembly, comprising a shell, the shell is an integrated arc-shaped shell, the inner side of the top of the shell is provided with a connecting part, the bottom side of the shell is provided with a shell part, the bottom side of the shell is provided with a guide part, and the shell and the shell part are welded by a welding part.

[0008] As a preferred scheme of the utility model, the welding part is welded by a laser welding machine, and is annularly welded.

[0009] The laser welding method can guarantee the welding quality, has a small heat affected zone, a high weld seam depth-width ratio, a flat and beautiful weld seam, and few welding defects, and the intensity of laser welding is usually about 10 to 30 percent higher than that of ordinary welding, so that the welding effect is greatly enhanced.

[0010] As a preferred scheme of the utility model, the connecting part is a cylindrical column, a threaded groove is formed in the center of the top surface of the threaded column, and the top shell is assembled with the shell through the connecting part and the threaded groove therein.

[0011] The connecting part structure is convenient for mounting the top shell and the bolt assembly thereon on the shell to ensure assembly stability.

[0012] As a preferred scheme of the utility model, a wedge-shaped guide part is arranged at the bottom of the shell, and the guide part is arranged between the bottom side of the shell and the outer shell part.

[0013] The guide part is convenient for guiding the oil in the inner side thereof to the outer shell part at the bottom side.

[0014] As a preferred scheme of the utility model, a filling slot is formed in the top surface of the shell in a U-shaped and opposite position, and a clamping strip is fixedly installed at the bottom of the top shell and inserted into the filling slot.

[0015] The filling slot is convenient for increasing the assembly effect in cooperation with the clamping strip.

[0016] As a preferred scheme of the utility model, the filling slot and the clamping strip are clamped through a sealing strip.

[0017] The sealing strip can be extruded in the filling slot by itself during clamping, thereby further ensuring the assembly effect.

[0018] The utility model provides a kind of integrated oil sump assembly.There is following beneficial effect:

[0019] The integrated oil sump assembly can ensure the overall quality of the shell after welding by the shell structure and the welding part at the bottom side thereof, and the overall practicability can be ensured by the outer shell part, the sealing effect can be ensured by the sealing strip press-fitting between the filling slot and the clamping strip, and the problem of limited integrated stability and poor sealing effect after welding of existing device is solved. DRAWINGS

[0020] Fig. 1 It is the structure schematic view of the utility model;

[0021] Fig. 2 It is the structure schematic view of the inner side of the utility model.

[0022] Fig. 3 It is the structure schematic view of the bottom side of the utility model.

[0023] In the drawing: 1, shell; 2, welding part; 3, shell part; 4, connecting part; 5, filling seam. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0025] Please refer to Figs. 1-3 The utility model embodiment provides a kind of technical scheme: a kind of integrated oil sump assembly, including shell 1, shell 1 is integrated arc shell, the inner side of the top of shell 1 is provided with connecting part 4, the bottom side of shell 1 is provided with shell part 3, the bottom side of shell 1 is provided with guide part, and shell 1 and shell part 3 are welded by welding part 2 between;

[0026] Wherein, the integrated oil sump assembly, by the structure of shell 1 and the setting of welding part 2 on its bottom side, the overall quality of shell 1 after welding can be guaranteed, and the setting of shell part 3 can guarantee the overall practicability, the sealing effect can also be guaranteed by the way that sealing strip is pressed and mounted between filling seam 5 and clamping strip, the problem that the integrated stability of existing device after welding is limited and sealing effect needs to be improved is solved.

[0027] Embodiment 2: welding part 2 is welded by laser welding machine, and it is annular welding;Wherein, the way of laser welding can first guarantee the welding quality, the heat affected zone of laser welding is small, the depth-width ratio of weld is high, the weld is smooth and beautiful, and the welding defects are few, secondly, the intensity of laser welding is usually higher than ordinary welding by about ten to thirty percent, greatly enhancing the welding effect.

[0028] Connecting part 4 is cylindrical column, and thread groove is formed in the center of the top surface of threaded column, and shell 1 is assembled with top shell by connecting part 4 and thread groove therein;Wherein, the setting of the structure of connecting part 4 facilitates the installation of top shell and bolt assembly thereon on shell 1, to guarantee the assembly stability.

[0029] The bottom of shell 1 is provided with wedge-shaped guide part, and the guide part is arranged between the bottom side of shell 1 and shell part 3;Wherein, the setting of guide part facilitates the guidance of oil body in the inner side thereof to shell part 3 on the bottom side.

[0030] The top surface of the shell 1 is provided with a filling slot 5 in a U shape and opposite positions, and the bottom of the top shell is fixedly provided with a clamping strip inserted into the filling slot 5.

[0031] The filling slot 5 and the clamping strip are clamped by a sealing strip, and the sealing strip is arranged to be extruded in the filling slot 5 during clamping, thereby further ensuring the assembly effect.

[0032] The working principle and use process of the utility model are as follows: when the device needs to work, the shell part 3 is laser welded on the bottom side of the shell 1 by using a laser welding machine, the shell 1 is assembled on the bottom of the top shell by using the connecting part 4, and the pressing assembly between the filling slot 5 and the clamping strip and the sealing strip can ensure the sealing effect, thereby further increasing the practicability.

[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0034] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated oil pan assembly characterized by: The application relates to a shell (1) which is an integral arc-shaped shell, the inner side of the top of the shell (1) is provided with a connecting part (4), the bottom side of the shell (1) is provided with a shell part (3), the bottom side of the shell (1) is provided with a guide part, and the shell (1) and the shell part (3) are welded through a welding part (2).

2. An integrated oil pan assembly as in claim 1, wherein: The welding part (2) is welded through a laser welding machine and is annular welding.

3. An integrated oil pan assembly as in claim 1, wherein: The connecting part (4) is a cylindrical column, a threaded groove is formed in the center of the top surface of the threaded column, and the shell (1) is assembled with a top shell through the connecting part (4) and the threaded groove.

4. The one-piece oil pan assembly of claim 1, wherein: The bottom of the shell (1) is provided with a wedge-shaped guide part which is arranged between the bottom side of the shell (1) and the shell part (3).

5. The one-piece oil pan assembly of claim 1, wherein: A filling gap (5) is formed in the top surface of the shell (1) and is opposite and U-shaped, and the bottom of the top shell is fixedly provided with a clamping strip which is inserted into the filling gap (5).

6. An integrated oil pan assembly as in claim 5, wherein: The filling gap (5) and the clamping strip are clamped through a sealing strip.

Citation Information

Patent Citations

  • Oil pan assembly

    CN214366265U