Oil pan oil return device suitable for diesel engine bench test

Abstract

The utility model relates to the technical field of oil pan oil return devices for diesel engine bench tests, and discloses an oil pan oil return device suitable for diesel engine bench tests, which comprises an oil inlet square inscribed circle, an oil pan is fixedly mounted on the upper end face of the oil inlet square inscribed circle, and a rectangular oil return pipeline assembly is arranged at the lower end of the oil inlet square inscribed circle. The front end of the rectangular oil return pipeline assembly is fixedly connected with an outlet pipeline assembly. According to the utility model, the oil inlet square inscribed circle, the rectangular oil return pipeline assembly and the loose flange are matched, and the loose flange is arranged, so that the rotation effect of the oil inlet square inscribed circle is realized, and the problem of adjusting the angle of the oil inlet square inscribed circle is effectively solved; the oil return device can meet the requirement of pre-adjusting the oil inlet square inscribed circle angle according to actual requirements during a bench test, not only optimizes the connection form and the installation process of the oil return device, but also reduces the difficulty of field operation.

Description

Technical Field

[0001] The utility model relates to the technical field of an oil pan oil return device for a diesel engine bench test, in particular to an oil pan oil return device suitable for a diesel engine bench test. Background Art

[0002] Large diesel engines are usually pre-assembled in modular form, with the three major components of the engine base, frame and cylinder block, and then transferred to a pre-arranged test bench for modular assembly and subsequent debugging and functional testing.

[0003] However, the fuselage height of existing large diesel engines is usually 15 to 20 meters. Due to the height limit of the factory building and the lifting capacity of the crane, the height between the diesel engine oil pan and the ground during the bench test is 0.45 to 0.8 meters. There are 2 to 4 oil return holes on the oil pan. According to the assembly process of the diesel engine, the pipelines and accessories of public works such as fuel, lubricating oil, cooling water, compressed air, etc. required for the bench test can be connected and installed only after the modular assembly is completed. At this time, the higher the output power of the diesel engine is, the larger the relative volume of the oil pan, the lower the height between the oil pan and the ground, and the more oil return holes there are, the more difficult it is for the staff to disassemble and assemble the pipelines and accessories in the narrow space under the oil pan, which increases the workload of the staff. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an oil pan oil return device suitable for diesel engine bench testing, which has the advantages of reducing on-site workload and operation difficulty, improving the efficiency of on-site operations, and improving the connection method between the oil return pipeline and accessories and the oil pan, thereby solving the problems raised in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: an oil sump oil return device suitable for a diesel engine bench test, comprising an oil inlet square connection circle, the upper end surface of the oil inlet square connection circle is fixedly mounted with an oil sump, the lower end of the oil inlet square connection circle is provided with a rectangular oil return pipe assembly, the front end of the rectangular oil return pipe assembly is fixedly connected with an outlet pipe assembly, a strong magnetic filter screen for filtering metal foreign matter in the oil is arranged inside the oil inlet square connection circle, a loose flange is adopted between the rectangular oil return pipe assembly and the oil inlet square connection circle, a liquid level gauge is fixedly mounted on the right side of the oil inlet square connection circle, and a supporting point is arranged on the oil inlet square connection circle.

[0006] Preferably, a rubber sealing groove is provided on the upper end surface of the oil inlet square.

[0007] Preferably, the rectangular oil return pipe assembly includes a pipe body, a No. 1 flange, and a No. 2 flange, the front end of the No. 1 flange is fixedly connected to the rear end of the pipe body, and the end of the No. 1 flange away from the pipe body is fixedly connected to the front end of the No. 2 flange.

[0008] Preferably, the outlet pipe assembly includes a rectangular flange, the rear end of which is fixedly connected to the front end of the pipe body, the front end of which is fixedly mounted with an oil outlet pipe, and the end of the oil outlet pipe away from the circular flange is fixedly connected to the circular flange.

[0009] Preferably, the upper end of the loose flange is connected to the lower end of the oil inlet square circle, and the end of the loose flange away from the oil inlet square circle is connected to the upper end surface of the pipeline body.

[0010] Preferably, the upper end of the liquid level meter extends to the inside of the oil inlet square circle, and one end of the liquid level meter away from the oil inlet square circle is fixedly connected to the rectangular oil return pipe assembly.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model realizes the rotation of the oil inlet square circle by the cooperation between the oil inlet square circle, the rectangular oil return pipe assembly and the loose flange, and utilizes the setting of the loose flange, effectively solving the problem of adjusting the angle of the oil inlet square circle. The loose flange is used to connect the oil inlet square circle and the rectangular oil return pipe assembly, which can meet the requirements of pre-adjusting the angle of the oil inlet square circle according to actual needs during bench testing, thereby optimizing the connection form and installation process of the oil return device and reducing the difficulty of on-site operations.

[0013] 2. The utility model effectively solves the installation problem of the oil return device through the coordination between the supporting points, the oil inlet square connecting to the circle, the rectangular oil return pipe assembly and the outlet pipe assembly. By utilizing the setting of the supporting points, the entire oil return device is lifted by using a jacking tool acting on the four supporting points to ensure that the contact surface between the oil return device and the diesel engine oil pan is well sealed. At the same time, when arranging the platform, the height of the oil return device can be pre-adjusted by using a jacking tool according to the relative position of the diesel engine oil return hole, and the required pipes and accessories can be installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view of the rectangular oil return pipe assembly of the utility model;

[0016] Figure 3 It is a side view of the oil inlet square connecting the circle of the utility model;

[0017] Figure 4 It is a side view of the outlet pipe assembly of the utility model;

[0018] Figure 5 It is a top view of the strong magnetic filter screen of the utility model.

[0019] In the figure: 1. Oil inlet square connected to circle; 2. Rectangular oil return pipe assembly; 201. Pipe body; 202. Flange No. 1; 203. Flange No. 2; 3. Outlet pipe assembly; 301. Oil outlet pipe; 302. Round flange; 303. Rectangular flange; 4. Strong magnetic filter; 5. Loose flange; 6. Liquid level gauge; 7. Support point; 8. Oil pan. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 and Figure 5 , an oil pan oil return device suitable for diesel engine bench test, comprising an oil inlet square connection circle 1, an oil pan 8 is fixedly installed on the upper end surface of the oil inlet square connection circle 1, a rectangular oil return pipeline component 2 is arranged at the lower end of the oil inlet square connection circle 1, the installation of the rectangular oil return pipeline component 2 serves to connect the oil inlet square connection circle 1 with the outlet pipeline component 3, the front end of the rectangular oil return pipeline component 2 is fixedly connected with the outlet pipeline component 3, the outlet pipeline component 3 is designed with an eccentric taper to increase the return oil flow rate, and the inside of the oil inlet square connection circle 1 is provided with a filter for filtering metal foreign matter in the oil The strong magnetic filter 4 can filter out metal foreign matter in the return oil and ensure the normal operation of the downstream circulating oil cabinet purification equipment. The rectangular return oil pipeline assembly 2 is connected to the oil inlet square circle 1 with a loose flange 5. A liquid level gauge 6 is fixedly installed on the right side of the oil inlet square circle 1. Support points 7 are provided on the oil inlet square circle 1. The support points 7 are set to four and distributed on the oil inlet square circle 1. The lifting tool acts on the four support points 7 to lift the entire oil return device to ensure that the contact surface between the oil return device and the diesel engine oil pan is well sealed.

[0022] The upper end surface of the oil inlet square connection circle 1 is provided with a rubber sealing groove.

[0023] See also Figure 2 and Figure 4 The rectangular oil return pipe assembly 2 includes a pipe body 201, a No. 1 flange 202, and a No. 2 flange 203. The front end of the No. 1 flange 202 is fixedly connected to the rear end of the pipe body 201. The setting of the pipe body 201 serves to connect the No. 1 flange 202 and the No. 2 flange 203. The end of the No. 1 flange 202 away from the pipe body 201 is fixedly connected to the front end of the No. 2 flange 203.

[0024] The outlet pipe assembly 3 includes a rectangular flange 303, which is installed to connect the oil outlet pipe 301 with the No. 1 flange 202. The rear end of the rectangular flange 303 is fixedly connected to the front end of the pipe body 201. The front end of the rectangular flange 303 is fixedly installed with the oil outlet pipe 301. The installation of the oil outlet pipe 301 serves to connect the circular flange 302 with the rectangular flange 303. The circular flange 302 is fixedly connected to the end of the oil outlet pipe 301 away from the circular flange 302.

[0025] See also Figure 3 and Figure 4 The upper end of the loose flange 5 is connected to the lower end of the oil inlet square circle 1, and the loose flange 5 is installed between the oil inlet square circle 1 and the pipeline body 201. The oil inlet square circle 1 can be adjusted 360 degrees, which can meet the requirements of pre-adjusting the angle of the oil inlet square circle 1 according to actual needs during the bench test. The end of the loose flange 5 away from the oil inlet square circle 1 is connected to the upper end face of the pipeline body 201.

[0026] The upper end of the liquid level meter 6 extends to the interior of the oil inlet square circle 1. The liquid level meter 6 is installed between the oil inlet square circle 1 and the rectangular oil return pipe assembly 2. The return oil level can be dynamically observed during use. The end of the liquid level meter 6 away from the oil inlet square circle 1 is fixedly connected to the rectangular oil return pipe assembly 2.

[0027] Working principle: When in use, first, the loose flange 5 is used to connect the oil inlet square circle 1 and the pipeline body 201. At this time, the rectangular oil return pipeline assembly 2 supports the oil inlet square circle 1, and a liquid level gauge 6 is arranged between the oil inlet square circle 1 and the rectangular oil return pipeline assembly 2, so that the liquid level gauge 6 can dynamically observe the return oil level during use, and the setting of the loose flange 5 can achieve 360-degree adjustment of the oil inlet square circle 1, which can meet the actual needs of pre-adjusting the angle of the oil inlet square circle 1 during bench testing. Then, the support point 7 is set, and the support point 7 is set to four distributed on the oil inlet square circle 1. The lifting tool is used to act on the four support points 7 to lift the entire oil return device to ensure that the contact surface of the oil return device and the diesel engine oil pan is well sealed. Finally, the strong magnetic filter 4 installed inside the oil inlet square circle 1 is to filter metal foreign matter in the return oil and ensure the normal operation of the downstream circulating oil cabinet purification. Among them, the design of the eccentric reduction of the outlet pipeline assembly 3 can increase the flow rate of the return flow.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil sump oil return device suitable for diesel engine bench testing, comprising an oil inlet square (1), characterized in that: An oil pan (8) is fixedly mounted on the upper end surface of the oil inlet square connection circle (1), a rectangular oil return pipe assembly (2) is arranged at the lower end of the oil inlet square connection circle (1), an outlet pipe assembly (3) is fixedly connected to the front end of the rectangular oil return pipe assembly (2), a strong magnetic filter (4) for filtering metal foreign matter in the oil is arranged inside the oil inlet square connection circle (1), a loose flange (5) is used to connect the rectangular oil return pipe assembly (2) and the oil inlet square connection circle (1), a liquid level meter (6) is fixedly mounted on the right side of the oil inlet square connection circle (1), and a support point (7) is arranged on the oil inlet square connection circle (1).

2. The oil sump oil return device suitable for diesel engine bench test according to claim 1, characterized in that: The upper end surface of the oil inlet square connection circle (1) is provided with a rubber sealing groove.

3. The oil sump oil return device suitable for diesel engine bench test according to claim 1, characterized in that: The rectangular oil return pipe assembly (2) comprises a pipe body (201), a first flange (202), and a second flange (203); the front end of the first flange (202) is fixedly connected to the rear end of the pipe body (201); and the end of the first flange (202) away from the pipe body (201) is fixedly connected to the front end of the second flange (203).

4. The oil sump oil return device suitable for diesel engine bench test according to claim 1, characterized in that: The outlet pipe assembly (3) comprises a rectangular flange (303), the rear end of the rectangular flange (303) is fixedly connected to the front end of the pipe body (201), the front end of the rectangular flange (303) is fixedly mounted with an oil outlet pipe (301), and one end of the oil outlet pipe (301) away from the circular flange (302) is fixedly connected to the circular flange (302).

5. The oil sump oil return device suitable for diesel engine bench test according to claim 3, characterized in that: The upper end of the loose flange (5) is connected to the lower end of the oil inlet square circle (1), and the end of the loose flange (5) away from the oil inlet square circle (1) is connected to the upper end surface of the pipeline body (201).

6. The oil sump oil return device suitable for diesel engine bench test according to claim 1, characterized in that: The upper end of the liquid level meter (6) extends to the interior of the oil inlet square circle (1), and the end of the liquid level meter (6) away from the oil inlet square circle (1) is fixedly connected to the rectangular oil return pipeline assembly (2).

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