Diesel engine oil pan with high sealing performance

Abstract

The utility model relates to the technical field of diesel engines, and provides a diesel engine oil pan with high sealing performance, which comprises a shell body, a plurality of bolt holes are arranged on the side of the shell body, a sealing strip and a closed-loop type inner groove are arranged on the side of the shell body connected with a diesel engine cylinder body, a matched annular air bag is arranged in the closed-loop type inner groove, and the sealing strip is arranged in the annular air bag. An air pressure sensor is arranged in the annular air bag; the diesel engine oil pan with the high sealing performance further comprises a bottom support mechanism. Double sealing is achieved through the sealing strip and the expanded annular air bag, the shell is supported through the bottom supporting mechanism, the effect of reinforcing connection between the shell and a diesel engine cylinder body is achieved, bolt stress concentration is relieved, and under the extreme condition, if the shell is loosened, the air pressure sensor monitors that the air pressure in the annular air bag becomes low, and a low-air-pressure signal is fed back; at the moment, the air pump is started to supplement air into the annular air bag, so that the air pressure in the annular air bag is recovered to the set air pressure, and the sealing performance between the shell and the diesel engine cylinder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, in particular to an oil pan of a diesel engine with high sealing performance. Background Art

[0002] Marine diesel engines are core components of ship power systems, and their stable and efficient operation is crucial to the safe navigation of ships. The oil pan, as an important component of marine diesel engines, plays the role of storing engine oil, cooling and cleaning.

[0003] Traditional marine diesel engine oil pans are often connected to the cylinder block by bolts and sealed with simple gaskets or sealants. Since ships are subject to the influence of wind, waves, vibrations, temperature changes and other factors during operation, the bolts at the connection between the oil pan and the cylinder block may become loose, and the gasket may deform, leading to oil leakage and affecting the normal operation of the diesel engine.

[0004] Therefore, the utility model proposes a diesel engine oil pan with high sealing performance to solve the above problems. Utility Model Content

[0005] The embodiment of the utility model aims to provide a diesel engine oil pan with high sealing performance to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A highly sealed diesel engine oil pan, comprising a shell, a plurality of bolt holes are arranged on the side of the shell, and the shell is characterized in that a sealing strip and a closed-loop inner groove are arranged on the side of the shell connected to the diesel engine cylinder body, an adapted annular airbag is arranged in the closed-loop inner groove, and the outer side surface of the annular airbag is covered with a rubber layer, an air pump for inflating and deflating the annular airbag is arranged on the outer side of the shell, and an air pressure sensor for real-time monitoring of the air pressure in the annular airbag is arranged in the annular airbag;

[0008] The highly sealed diesel engine oil pan also includes a supporting mechanism for supporting the housing.

[0009] In an optional solution: the base support mechanism includes a cylinder connecting member fixedly connected to the diesel engine cylinder body, a mounting member slidably arranged on the cylinder connecting member, and a plurality of base support members arranged on the mounting member for contacting the bottom of the shell.

[0010] In an optional solution: a protective pad is provided on the side of each base member that contacts the bottom of the shell.

[0011] In an optional solution: the connecting cylinder is provided with a slide groove that slidably cooperates with the mounting member, a rotatable threaded rod is provided in the slide groove, and the threaded rod is threadably cooperated with and penetrates the mounting member.

[0012] In an optional solution: a hand wheel is provided on the threaded rod.

[0013] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows:

[0014] Double-pass sealing is achieved through sealing strips and inflated annular airbags, and the shell is supported by a base mechanism to strengthen the connection between the shell and the diesel engine cylinder block, reduce stress concentration on the bolts, and thereby improve the loosening of the bolts under the influence of various factors such as vibration and temperature changes. The air pressure sensor monitors the air pressure in the annular airbag in real time. In extreme cases, if the shell becomes loose, the air pressure sensor detects that the air pressure in the annular airbag becomes low and feeds back a low pressure signal. At this time, the air pump starts to replenish gas into the annular airbag so that the air pressure in the annular airbag returns to the set pressure. The annular airbag wall always maintains a close fit with the shell and the diesel engine cylinder block to ensure the sealing between the shell and the diesel engine cylinder block.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a top view of the shell in the utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 It is a structural schematic diagram of the bottom supporting mechanism in the utility model.

[0021] Notes on the figure numbers: 1-housing, 2-cylinder connecting part, 3-mounting part, 4-bottom supporting part, 5-air pump, 6-sealing strip, 7-closed-loop inner groove, 8-annular airbag, 9-slide groove, 10-threaded rod, 11-protective pad, 12-bolt hole. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] See also Figure 1 to Figure 3 , a highly sealed diesel engine oil pan, comprising a shell 1, a plurality of bolt holes 12 are arranged on the side of the shell 1, a sealing strip 6 and a closed-loop inner groove 7 are arranged on the side of the shell 1 connected to the diesel engine cylinder block, an adapted annular airbag 8 is arranged in the closed-loop inner groove 7, and the outer side of the annular airbag 8 is covered with a rubber layer, an air pump 5 for realizing the inflation and deflation of the annular airbag 8 is arranged on the outer side of the shell 1, and an air pressure sensor (not shown in the figure) for real-time monitoring of the air pressure in the annular airbag 8 is arranged in the annular airbag 8;

[0025] The highly sealed diesel engine oil pan further comprises a supporting mechanism for supporting the housing 1 .

[0026] The shell 1 is connected to the diesel engine cylinder block by bolts, and double-channel sealing is achieved through the sealing strip 6 and the expanded annular airbag 8. The shell 1 is supported by the bottom support mechanism, which plays a role in strengthening the connection between the shell 1 and the diesel engine cylinder block, reducing the stress concentration of the bolts, and thus improving the loosening phenomenon of the bolts under the influence of various factors such as vibration and temperature changes. The air pressure sensor monitors the air pressure in the annular airbag 8 in real time. In extreme cases, if the shell 1 becomes loose, the air pressure sensor detects that the air pressure in the annular airbag 8 becomes low and feeds back a low pressure signal. At this time, the air pump 5 starts to replenish gas into the annular airbag 8 so that the air pressure in the annular airbag 8 is restored to the set air pressure. The wall of the annular airbag 8 always maintains a close contact with the shell 1 and the diesel engine cylinder body to ensure the sealing between the shell 1 and the diesel engine cylinder body. It should be noted that the rubber layer covering the outer side of the annular airbag 8 is used to ensure the sealing when it is in close contact with the shell 1 and the diesel engine cylinder body. In addition, the linkage between the air pressure sensor and the air pump 5 belongs to the existing mature control technology and there is no technical obstacle, so it will not be elaborated here.

[0027] Furthermore, the air pressure sensor model is: Panasonic DP-102.

[0028] See also Figure 1 and Figure 4 In one embodiment of the utility model, the bottom support mechanism includes a cylinder connecting member 2 fixedly connected to the diesel engine cylinder body, a mounting member 3 slidably arranged on the cylinder connecting member 2, and a plurality of bottom support members 4 arranged on the mounting member 3 for contacting the bottom of the housing 1;

[0029] The connecting cylinder 2 is provided with a slide groove 9 which is slidably matched with the mounting member 3 . A rotatable threaded rod 10 is provided in the slide groove 9 , and the threaded rod 10 is threadably matched and penetrates the mounting member 3 .

[0030] In this embodiment, the bottom support mechanism plays the role of a support frame. After the housing 1 is connected to the diesel engine cylinder block by bolts, the sliding mounting member 3 makes the bottom support member 4 contact and abut against the bottom of the housing 1, and supports the housing 1 from the bottom, thereby alleviating the stress concentration of the bolts, and further improving the loosening phenomenon of the bolts under the influence of various factors such as vibration and temperature changes.

[0031] Furthermore, in this embodiment, a protective pad 11 is provided on the side of each bottom support member 4 that contacts the bottom of the shell 1. The protective pad 11 protects the shell 1 and prevents damage to the shell 1 when the bottom support member 4 contacts and abuts against the bottom of the shell 1.

[0032] Furthermore, in this embodiment, a hand wheel is provided on the threaded rod 10 , and an operator rotates the threaded rod 10 through the hand wheel, thereby driving the mounting member 3 to slide.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A diesel engine oil pan with high sealing performance, comprising a shell (1), wherein the shell (1) is provided with a plurality of bolt holes (12) on its side, characterized in that: The housing (1) is provided with a sealing strip (6) and a closed-loop inner groove (7) on the side connected to the diesel engine cylinder body, an adapted annular airbag (8) is provided in the closed-loop inner groove (7), and the outer side surface of the annular airbag (8) is covered with a rubber layer, an air pump (5) for inflating and deflating the annular airbag (8) is provided on the outside of the housing (1), and an air pressure sensor for real-time monitoring of the air pressure in the annular airbag (8) is provided in the annular airbag (8); The highly sealed diesel engine oil pan also includes a base support mechanism for supporting the housing (1).

2. The diesel engine oil pan with high sealing performance according to claim 1, characterized in that: The bottom support mechanism comprises a cylinder connecting member (2) fixedly connected to the diesel engine cylinder body, a mounting member (3) slidably arranged on the cylinder connecting member (2), and a plurality of bottom support members (4) arranged on the mounting member (3) and used for contacting the bottom of the housing (1).

3. The diesel engine oil pan with high sealing performance according to claim 2, characterized in that: A protective pad (11) is provided on the side of each base support member (4) that contacts the bottom of the shell (1).

4. The diesel engine oil pan with high sealing performance according to claim 2, characterized in that: The connecting cylinder part (2) is provided with a slide groove (9) which is slidably matched with the mounting part (3), a rotatable threaded rod (10) is provided in the slide groove (9), and the threaded rod (10) is threadably matched and penetrates the mounting part (3).

5. The diesel engine oil pan with high sealing performance according to claim 4, characterized in that: A hand wheel is provided on the threaded rod (10).

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