A range extended engine flywheel housing facilitating maintenance

Abstract

The application discloses a range-extending engine flywheel shell convenient to maintain, and belongs to the technical field of engine components. The range-extending engine flywheel shell convenient to maintain comprises a shell main body, a welding frame, a sliding frame, a shielding plate and a through slot plate. The shell main body is provided with an observation window. The welding frame is fixedly connected to the shell main body and located at the observation window, and the welding frame is provided with an observation opening penetrating through the welding frame. The sliding frame is arranged in the welding frame. The shielding plate shields the observation opening. The through slot plate is slidably arranged in the welding frame and located on the upper side of the shielding plate. The first convex edge is arranged on the lower end wall of the side slot and annularly arranged around the observation opening. The second convex edge is fixedly connected to the through slot plate. The first sealing ring and the second sealing ring are respectively abutted to the upper and lower side surfaces of the shielding plate. The range-extending engine flywheel shell convenient to maintain has the beneficial effects that the welding frame and the shielding plate are arranged, when maintenance and inspection are needed, the shielding plate is moved in the side slot, the shielding plate no longer shields the observation opening, and observation is facilitated.

Description

Technical Field

[0001] This application relates to the field of engine component technology, and more specifically, to a range-extender engine flywheel housing that is easy to maintain. Background Technology

[0002] Currently, during engine flywheel maintenance, it's necessary to observe the flywheel's condition, such as the OT (overhead) markings. This typically requires an inspection window on the engine flywheel housing. Workers observe the OT markings through this window to facilitate valve clearance adjustments. In existing technology, to prevent foreign objects from entering the inspection window, a cover plate is usually placed over it and bolted in place. When workers need to check the flywheel OT markings, the bolts are removed and the cover plate is moved. After inspection, the cover plate is then bolted back in place. However, this method of removing and installing the inspection window cover is not only cumbersome and complex, resulting in a large number of parts and increasing the time required for disassembly and assembly, but it also carries the risk of losing parts.

[0003] Therefore, a range extender engine flywheel housing that is easy to maintain is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a maintenance-friendly range extender engine flywheel housing, comprising: a housing body with an observation window; a welding frame fixedly connected to the housing body and located at the observation window, the welding frame having an observation opening penetrating the welding frame and facing the observation window, and a side groove within the welding frame; two sliding frames slidably disposed within the side groove and positioned opposite each other; a baffle plate disposed between the two sliding frames to baffle the observation opening; a through-groove plate slidably disposed within the welding frame and located above the baffle plate; a first protruding edge arranged annularly around the observation opening on the lower end wall of the side groove, the first protruding edge having a first sealing ring; a second protruding edge fixedly connected to the through-groove plate, the second protruding edge having a second sealing ring; the second sealing ring and the first sealing ring respectively abutting against the upper and lower sides of the baffle plate.

[0006] With the welding frame and shielding plate in place, when maintenance and inspection are required, the shielding plate can be moved within the side groove to remove it from the observation port, facilitating observation. At the same time, with the first and second sealing rings in place, when no inspection is being performed, the second sealing ring and the first sealing ring abut against the upper and lower sides of the shielding plate respectively to seal the observation port and prevent dust from entering the shell body.

[0007] Furthermore, a first rotating bolt is rotatably connected to the welding frame. The first rotating bolt has a head end and a rod end. The rod end is inserted into the welding frame. Two side cavities are opened inside the welding frame. The two side cavities are located on both sides of the observation port. A sealing plate is fixedly connected to the through slot plate. The sealing plate slides in the two side cavities. The rod end is inserted into one of the side cavities and has a threaded portion located in the side cavity. The rod end passes through the sealing plate and is threadedly connected to the sealing plate.

[0008] When the observation port needs to be closed, the first rotating bolt is rotated to move the through-slot plate toward the baffle plate, thereby squeezing the baffle plate and making the second sealing ring fit tightly against the first sealing ring, thus preventing dust from entering.

[0009] Furthermore, a receiving cavity is provided inside the welding frame, the receiving cavity is located on one side of the baffle plate, a second rotating bolt is rotatably connected to the welding frame, one end of the second rotating bolt is inserted into the welding frame and has a part located in the receiving cavity, the second rotating bolt is fixedly connected to a meshing wheel located in the receiving cavity, the meshing wheel has a part located in the side groove.

[0010] By using the second rotating bolt and the meshing wheel, when the second rotating bolt is rotated, the sliding frame can be driven to move through the meshing wheel, thereby making the obstruction plate no longer block the observation port.

[0011] Furthermore, a rack is fixedly provided on the sliding frame, and the meshing wheel meshes with the rack.

[0012] Furthermore, a guide rod is fixed on the sliding frame, and the guide rod passes through the baffle plate and is slidably connected to the baffle plate.

[0013] The guide rod is designed so that when the through-slot plate presses against the baffle plate, the baffle plate can be pressed against the first sealing ring, thereby sealing the area.

[0014] Furthermore, a limiting protrusion is fixedly connected to the sliding frame, and the limiting protrusion slides in the side groove and limits the sliding frame.

[0015] The sliding frame is prevented from detaching from the side groove by setting limit protrusions.

[0016] Furthermore, a sealing plate is fixedly connected to one side of the shield to seal the side groove.

[0017] The beneficial effects of this application are as follows:

[0018] 1. With the welding frame and baffle plate, when maintenance and inspection are required, the baffle plate can be moved in the side groove so that it no longer blocks the observation port, making it easy to observe. At the same time, with the first sealing ring and the second sealing ring, when no inspection is being carried out, the second sealing ring and the first sealing ring respectively abut against the upper and lower sides of the baffle plate to seal the observation port and prevent dust from entering the shell body.

[0019] 2. By using the first rotating bolt, when it is necessary to close the observation port, rotating the first rotating bolt will drive the through slot plate to move towards the baffle plate, thereby squeezing the baffle plate and making the second sealing ring and the first sealing ring fit tightly against the baffle plate to prevent dust from entering. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0021] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0022] In the attached diagram:

[0023] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0024] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the welding frame in the embodiment;

[0025] Figure 3 yes Figure 1 A schematic diagram of the overall structure of the welding frame in the embodiment;

[0026] Figure 4 yes Figure 1 A schematic diagram of the through-slot plate in the embodiment;

[0027] Figure 5 yes Figure 1 The installation diagram of the shielding plate in the embodiment is shown below;

[0028] Figure 6 yes Figure 1 The above embodiment shows the installation diagram of the first rotating bolt and the second rotating bolt.

[0029] Figure label:

[0030] 10. Shell body; 11. Welding frame; 12. Observation window; 13. Observation port; 14. Side groove; 15. Baffle plate; 16. Sliding frame; 17. Guide rod; 18. First protruding edge; 19. First sealing ring; 20. Limiting protrusion; 21. Through groove plate; 22. Second sealing ring; 23. First rotating bolt; 24. Side cavity; 25. Meshing wheel; 26. Sealing plate; 27. Sliding groove; 28. Second rotating bolt; 29. ​​Rack; 30. Second protruding edge; 31. Head end; 32. Rod part; 33. Receiving cavity. Detailed Implementation

[0031] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0032] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0034] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Reference Figure 1-6A maintenance-friendly flywheel housing for a range-extended engine includes: a housing body 10, a welding frame 11, an observation window 12, an observation port 13, a side groove 14, a baffle plate 15, a sliding frame 16, a through-groove plate 21, a first raised edge 18, a first sealing ring 19, a through-groove plate 21, a second raised edge 30, and a second sealing ring 22. The housing body 10 has an observation window 12 for inspecting and maintaining the flywheel. A welding frame 11 is welded to the housing body 10 at the observation window 12. An observation port 13 is provided through the welding frame 11, directly opposite the observation window 12. A side groove 14 extending to the side of the welding frame 11 is formed inside the welding frame 11. Two sliding frames 16 are slidably connected within the side groove 14, and a baffle plate 15 is provided between the two sliding frames 16. A guide rod 17 is fixedly connected to the sliding frame 16, and the guide rod 17 passes through the baffle plate 15 and slides in cooperation with the baffle plate 15. The baffle plate 15 blocks the observation port 13. When maintenance and inspection are required, the baffle plate 15 and the sliding frame 16 can be moved to remove the obstruction of the observation port 13, facilitating inspection.

[0037] A second rotating bolt 28 is rotatably connected to the welding frame 11. A receiving cavity 33 is provided inside the welding frame 11. One end of the second rotating bolt 28 is inserted into the welding frame 11 and has a portion located within the receiving cavity 33. The second rotating bolt 28 is fixedly connected to a meshing wheel 25 located within the receiving cavity 33. The meshing wheel 25 has a portion located within the side groove 14. A rack 29 is fixedly provided on the sliding frame 16. The meshing wheel 25 meshes with the rack 29. When the second rotating bolt 28 is rotated, the sliding frame 16 and the shield 15 move through the meshing wheel 25 and the rack 29. The shield 15 no longer blocks the observation port 13, allowing inspection to be performed.

[0038] A sliding groove 27 is provided inside the welding frame 11, and a through-groove plate 21 is slidably connected inside the sliding groove 27. The through-groove plate 21 is located above the shielding plate 15. A first rotating bolt 23 is rotatably connected to the welding frame 11. The first rotating bolt 23 has a head end 31 and a rod 32. The rod 32 is inserted into the welding frame 11. Two side cavities 24 are provided inside the welding frame 11. The two side cavities 24 are located on both sides of the observation port 13. Sealing plates 26 are fixedly connected to both sides of the through-groove plate 21. The two sealing plates 26 slide in the two side cavities 24 respectively. The rod 32 is inserted into one of the side cavities 24 and has a threaded portion located in the side cavity 24. The rod 32 passes through one of the sealing plates 26 and is threadedly connected to the sealing plate 26. A second rotating bolt 28 passes through the other sealing plate 26 to guide the through-groove plate 21. By rotating the head end 31, the through-groove plate 21 can be moved closer to the shielding plate 15. A second protruding edge 30 is fixedly connected to the through-slot plate 21, and a first protruding edge 18 is fixedly connected to the lower end wall of the side groove 14. A first sealing ring 19 is provided on the first protruding edge 18, and a second sealing ring 22 is provided on the second protruding edge 30. When the through-slot plate 21 moves closer to the baffle plate 15, the second protruding edge 30 will press against the baffle plate 15, and the second sealing ring 22 will abut against the upper end face of the baffle plate 15. At the same time, the lower end face of the baffle plate 15 will also be pressed tightly against the first sealing ring 19, thereby sealing the observation port 13 and preventing dust from entering the shell body 10.

[0039] A limiting protrusion 20 is fixedly connected to the sliding frame 16. The limiting protrusion 20 slides within the side groove 14. When one end of the sliding frame 16 extends out of the side groove 14, the sliding frame 16 reaches its limit position, and the baffle plate 15 no longer blocks the observation port 13. At this time, the limiting protrusion 20 abuts against the inner wall of the side groove 14, allowing the sliding frame 16 to slide completely out of the side groove 14. A sealing plate 26 is fixedly connected to one side of the baffle plate 15. When the baffle plate 15 blocks the observation port 13, the sealing plate 26 abuts against the side of the welding frame 11, sealing the side groove 14. This further prevents dust from entering.

[0040] Working process or usage method:

[0041] 1. When maintenance and inspection are required, the first rotating bolt 23 is rotated so that the through slot plate 21 no longer presses against the baffle plate 15. Then, the second rotating bolt 28 is rotated. Under the action of the meshing wheel 25 and the rack 29, the baffle plate 15 and the sliding frame 16 can move. The internal condition of the shell body 10 can be observed through the observation window 12.

[0042] 2. When the observation window 12 needs to be closed, the second rotating bolt 28 is reversed, causing the baffle plate 15 to block the observation port 13. At this time, dust can easily enter the shell body 10 through the gap between the baffle plate 15 and the observation port 13. By rotating the first rotating bolt 23, the through slot plate 21 moves under the action of the rod 32, causing the second protruding edge 30 to move towards the baffle plate 15 and fit tightly against the baffle plate 15. At this time, under the action of the guide rod 17, the lower end face of the baffle plate 15 can fit tightly against the first protruding edge 18 and be sealed under the action of the first sealing ring 19. At the same time, the second sealing ring 22 will also fit tightly against the upper end face of the baffle plate 15, and similarly cooperate to seal, preventing dust from entering the shell body 10. Under the action of the sealing plate 26, the side groove 14 can be closed, further ensuring the sealing effect.

[0043] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A maintenance-friendly flywheel housing for a range-extender engine, characterized in that... ,include: The shell body (10) has an observation window (12) on it; A welding frame (11) is fixedly connected to the shell body (10) and located at the observation window (12). An observation port (13) is provided on the welding frame (11) through the welding frame (11). The observation port (13) is directly opposite the observation window (12). A side groove (14) is also provided inside the welding frame (11). There are two sliding frames (16), which are slidably set in the side groove (14) and set relative to each other; A shield (15) is set between two sliding frames (16) to shield the observation port (13); The through slot plate (21) is slidably disposed inside the welding frame (11) and located on the upper side of the shielding plate (15); A first protruding edge (18) is provided on the lower end wall of the side groove (14), and a first sealing ring (19) is provided on the first protruding edge (18). A second protruding edge (30) is fixedly connected to the through groove plate (21), and a second sealing ring (22) is provided on the second protruding edge (30). The second sealing ring (22) and the first sealing ring (19) respectively abut against the upper and lower sides of the baffle plate (15).

2. The easy-to-maintain flywheel housing for a range-extender engine according to claim 1, characterized in that: The welding frame (11) is rotatably connected to a first rotating bolt (23), which has a head end (31) and a rod (32). The rod (32) is inserted into the welding frame (11). The welding frame (11) has two side cavities (24) located on both sides of the observation port (13). The through slot plate (21) is fixedly connected to a sealing plate (26). The sealing plate (26) slides in the two side cavities (24). The rod (32) is inserted into one of the side cavities (24) and has a threaded portion located in the side cavity (24). The rod (32) passes through the sealing plate (26) and is threadedly connected to the sealing plate (26).

3. The easy-to-maintain flywheel housing for a range-extender engine according to claim 2, characterized in that: The welding frame (11) has a receiving cavity (33) located on one side of the baffle plate (15). A second rotating bolt (28) is rotatably connected to the welding frame (11). One end of the second rotating bolt (28) is inserted into the welding frame (11) and has a portion located in the receiving cavity (33). The second rotating bolt (28) is fixedly connected to a meshing wheel (25) located in the receiving cavity (33). The meshing wheel (25) has a portion located in the side groove (14).

4. The easy-to-maintain flywheel housing for a range-extender engine according to claim 3, characterized in that: A rack (29) is fixedly provided on the sliding frame (16), and the meshing wheel (25) meshes with the rack (29).

5. The easy-to-maintain flywheel housing for a range-extender engine according to claim 4, characterized in that: A guide rod (17) is fixed on the sliding frame (16), and the guide rod (17) passes through the baffle plate (15) and is slidably connected to the baffle plate (15).

6. The easy-to-maintain flywheel housing for a range-extender engine according to claim 5, characterized in that: A limiting protrusion (20) is fixedly connected to the sliding frame (16). The limiting protrusion (20) slides in the side groove (14) and limits the sliding frame (16).

7. The easy-to-maintain flywheel housing for a range-extender engine according to claim 6, characterized in that: A sealing plate (26) is fixedly connected to one side of the shield (15) to seal the side groove (14).

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