Mounting structure for flywheel of diesel engine

The design of the positioning and protection mechanisms solved the problem of positioning deviation during diesel engine flywheel installation, achieving a precise and stable installation process, improving efficiency and extending component life.

CN223549732UActive Publication Date: 2025-11-14CHANGZHOU YUGUAN MASCH CO LTD
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Patent Information

Application Number
CN202423288290.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-14
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In the current diesel engine flywheel installation process, relying on manual experience makes it difficult to achieve accurate alignment, resulting in positioning deviations and low installation efficiency.

Method used

The control ring is rotated by the control rod in the positioning mechanism. The arc block and the extrusion plate are precisely inserted into the positioning hole of the diesel engine and initially fixed by springs and dampers. Combined with bolt tightening, multiple fixation is achieved. The protective mechanism forms a reliable seal through the positioning rod and the sealing ring protective cover to prevent external impurities from entering.

Benefits of technology

It achieves precise positioning and stable installation of the flywheel, improves installation efficiency, enhances structural stability and reliability, provides good protection, and extends component life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223549732U_ABST
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Abstract

The utility model discloses an installation structure for a flywheel of a diesel engine, which relates to the technical field of diesel engines and is characterized by comprising flywheel equipment and an installation ring fixedly arranged on the inner side of the flywheel equipment, a positioning mechanism is arranged on the inner side of the installation ring, and a protection mechanism is arranged on the outer wall of the flywheel equipment. The positioning device has the technical effects that a control rod in the positioning mechanism drives a control ring to rotate, so that an arc-shaped block acts with an extrusion plate, a positioning block is pushed to be accurately inserted into a corresponding positioning hole in the mounting end of the diesel engine to realize accurate positioning, and an insertion plate is inserted into a control rod insertion groove through a spring and a damper to complete preliminary fixing; by means of the multiple fixing mode, the structural stability is guaranteed, flywheel displacement is prevented, the overall reliability is improved, meanwhile, the structural design is reasonable, installation and positioning can be completed only by manually operating all the components, complex professional tools are not needed, and the installation cost is reduced. And the working efficiency in an actual installation scene is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, specifically to a mounting structure for a diesel engine flywheel. Background Technology

[0002] In the operating system of a diesel engine, the flywheel is an indispensable key component, playing a crucial role in ensuring the smooth operation of the engine and the effective storage of energy.

[0003] In the existing flywheel installation process, the flywheel is positioned so that its mounting holes correspond to those of the diesel engine. However, the positioning process often relies on manual experience for rough alignment, which makes it difficult to ensure accurate fit between the flywheel and the diesel engine mounting end. This can easily lead to positioning deviations and result in low installation efficiency. Therefore, a new installation structure for diesel engine flywheels is proposed. Utility Model Content

[0004] Technical solution

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mounting structure for a diesel engine flywheel, comprising a flywheel assembly and a mounting ring fixedly disposed on the inner side of the flywheel assembly, wherein a positioning mechanism is disposed on the inner side of the mounting ring, and a protective mechanism is disposed on the outer wall of the flywheel assembly;

[0006] The protective mechanism is located outside the positioning mechanism;

[0007] The positioning mechanism includes a positioning part and an auxiliary part;

[0008] The positioning part includes a control ring and a control lever, and the auxiliary part includes a plug plate and a fixing plate;

[0009] The inner side of the mounting ring is slidably connected to the outer wall of the control ring. Multiple extrusion plates are slidably arranged on the inner side of the mounting ring. Multiple positioning blocks are fixedly arranged on the outer walls of the multiple extrusion plates. Multiple arc-shaped blocks are fixedly arranged on the inner side of the control ring. The outer walls of the multiple arc-shaped blocks are slidably connected to the outer walls of the multiple extrusion plates.

[0010] Preferably, the protective mechanism includes a protective cover, the side of the protective cover near the flywheel device is in contact with the outer wall of the flywheel device, the outer wall of the protective cover is movably connected to the flywheel device by a plurality of screws, and a plurality of positioning rods are fixedly provided on the outer wall of the flywheel device, the side of the plurality of positioning rods near the protective cover all penetrate the side of the protective cover near the flywheel device and extend to the outside of the protective cover.

[0011] Preferably, the outer wall of the mounting ring is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to the outer wall of the control rod, the outer wall of the control rod is fixedly connected to the inner side of the control ring, and a fixing frame is fixedly provided on the outer wall of the mounting ring, with a through groove on the front of the fixing frame.

[0012] Preferably, a bolt is provided on the inner wall of the through groove. The bolt is threaded through the outer wall of the control rod and extends into the inside of the control rod on one side. A compression ring is fixedly sleeved on the surface of the bolt. The side of the compression ring near the fixing frame contacts the outer wall of the fixing frame. A wedge-shaped groove is opened on the inner side of the mounting ring. A wedge-shaped block is slidably arranged on the inner wall of the wedge-shaped groove. The side of the wedge-shaped block near the extrusion plate is fixedly connected to the outer wall of the extrusion plate.

[0013] Preferably, the outer wall of the mounting ring is slidably connected to one side of the fixing plate near the mounting ring, the outer wall of the insert plate extends through the outer wall of the fixing plate to the side of the fixing plate near the control rod, the outer wall of the control rod has a slot, and the outer wall of the insert plate is slidably connected to the inner wall of the slot.

[0014] Preferably, a spring and a damper are fixedly installed on the side of the fixed plate near the control rod. The side of the spring and the damper near the control rod is fixedly connected to the outer wall of the control rod. The spring is initially in an extended state.

[0015] Preferably, a fixing ring is fixedly provided on the outer wall of the flywheel device, a sealing ring is fixedly provided on the inner side of the fixing ring, and a sealing ring is fixedly provided on the outer wall of the protective cover, with the outer wall of the sealing ring and the outer wall of the sealing ring in extrusion contact.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention provides a mounting structure for a diesel engine flywheel, which has the following advantages:

[0018] 1. The control rod in the positioning mechanism drives the control ring to rotate, causing the arc-shaped block to interact with the extrusion plate. This pushes the positioning block to precisely insert into the corresponding positioning hole on the diesel engine mounting end, achieving accurate positioning. Springs and dampers are used to insert the insert plate into the control rod slot for initial fixation. Then, the bolts are tightened to make the extrusion ring and the fixing frame press against each other to strengthen the fixation. This multi-fixing method ensures structural stability, prevents flywheel displacement, and improves overall reliability. At the same time, its structural design is reasonable, and installation and positioning can be completed by manually operating each component without the need for complicated professional tools, effectively improving work efficiency in actual installation scenarios.

[0019] 2. The positioning rod in the protective mechanism positions the protective cover, and the screw is used to securely install it on the flywheel equipment. The compression ring on the inner side of the fixing ring and the sealing ring on the outer wall of the protective cover are pressed and contacted to form a reliable seal, effectively preventing external dust, moisture and other impurities from entering the area where the mounting ring and positioning mechanism are located, providing good protection for the internal structure and extending the service life of each component. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the positioning mechanism of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the fixing frame of this utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the protective mechanism of this utility model;

[0025] Figure 6 This utility model Figure 3 Enlarged 3D schematic diagram of area A in the middle;

[0026] Figure 7 This utility model Figure 4 Enlarged 3D schematic diagram of area B in the middle;

[0027] Figure 8 This utility model Figure 5 Enlarged 3D schematic diagram of area C.

[0028] In the diagram: 1. Flywheel device; 2. Protective mechanism; 21. Fixing ring; 22. Protective cover; 23. Positioning rod; 24. Sealing ring; 25. Sealing ring; 3. Mounting ring; 4. Positioning mechanism; 41. Control ring; 42. Fixing frame; 43. Bolt; 44. Extrusion plate; 45. Positioning block; 46. Extrusion ring; 47. Spring; 48. Damper; 49. Fixing plate; 410. Insert plate; 411. Wedge block; 412. Arc block; 413. Control rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1-8 As shown, this embodiment proposes a flywheel device 1 and a mounting ring 3 fixedly disposed inside the flywheel device 1. A positioning mechanism 4 is disposed inside the mounting ring 3, and a protective mechanism 2 is disposed on the outer wall of the flywheel device 1.

[0032] Protective mechanism 2 is located outside the positioning mechanism 4;

[0033] Positioning mechanism 4 includes a positioning unit and an auxiliary unit;

[0034] The positioning part includes a control ring 41 and a control lever 413, and the auxiliary part includes a plug plate 410 and a fixing plate 49;

[0035] The inner side of the mounting ring 3 is slidably connected to the outer wall of the control ring 41. Multiple extrusion plates 44 are slidably arranged on the inner side of the mounting ring 3, and multiple positioning blocks 45 are fixedly arranged on the outer walls of the extrusion plates 44. Multiple arc-shaped blocks 412 are fixedly arranged on the inner side of the control ring 41, and the outer walls of the arc-shaped blocks 412 are slidably connected to the outer walls of the extrusion plates 44. A groove is formed on the outer wall of the mounting ring 3, and the inner wall of the groove is slidably connected to the outer wall of the control rod 413. The outer wall of the control rod 413 is fixedly connected to the inner side of the control ring 41. A fixing bracket 42 is fixedly arranged on the outer wall of the mounting ring 3. A through groove is formed on the front of the fixing bracket 42, and a bolt 43 is arranged on the inner wall of the through groove. The bolt 43, near the control rod 413, is threaded through the outer wall of the control rod 413 and extends into the control rod 413. A sealing ring 25 is fixedly fitted on the surface of the bolt 43. The sealing ring 25 has one side near the fixed frame 42 in contact with the outer wall of the fixed frame 42. The inner side of the mounting ring 3 has a wedge-shaped groove, and a wedge block 411 is slidably disposed on the inner wall of the wedge groove. The side of the wedge block 411 near the extrusion plate 44 is fixedly connected to the outer wall of the extrusion plate 44. The outer wall of the mounting ring 3 is slidably connected to the side of the fixed plate 49 near the mounting ring 3. The outer wall of the insert plate 410 is fixedly inserted through the outer wall of the fixed plate 49 and extends to the side of the fixed plate 49 near the control rod 413. The outer wall of the control rod 413 has a slot, and the outer wall of the insert plate 410 is slidably connected to the inner wall of the slot. A spring 47 and a damper 48 are fixedly disposed on the side of the fixed plate 49 near the control rod 413. The side of the spring 47 and the damper 48 near the control rod 413 are fixedly connected to the outer wall of the control rod 413. The spring 47 is initially in an extended state.

[0036] In this embodiment, the control rod 413 in the positioning mechanism 4 drives the control ring 41 to rotate, causing the arc block 412 to interact with the extrusion plate 44, pushing the positioning block 45 to be precisely inserted into the corresponding positioning hole at the diesel engine mounting end for precise positioning. The spring 47 and damper 48 are used to insert the insertion plate 410 into the slot of the control rod 413 to complete the initial fixation. Then, the bolt 43 is tightened to make the extrusion ring and the fixing frame 42 press against each other to strengthen the fixation. This multi-fixing method ensures the structural stability, prevents flywheel displacement, and improves the overall reliability. At the same time, its structural design is reasonable, and the installation and positioning can be completed by manually operating each component without the need for complicated professional tools, which effectively improves the work efficiency in actual installation scenarios.

[0037] Example 2

[0038] like Figures 1-8As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the protective mechanism 2 includes a protective cover 22. The side of the protective cover 22 near the flywheel device 1 contacts the outer wall of the flywheel device 1. The outer wall of the protective cover 22 is movably connected to the flywheel device 1 through multiple screws. Multiple positioning rods 23 are fixedly provided on the outer wall of the flywheel device 1. The side of the multiple positioning rods 23 near the protective cover 22 all penetrates the side of the protective cover 22 near the flywheel device 1 and extends to the outside of the protective cover 22. A fixing ring 21 is fixedly provided on the outer wall of the flywheel device 1. A sealing ring 25 is fixedly provided on the inner side of the fixing ring 21. A sealing ring 24 is fixedly provided on the outer wall of the protective cover 22. The outer wall of the sealing ring 24 and the outer wall of the sealing ring 25 are in contact by compression.

[0039] In this embodiment, the positioning rod 23 in the protective mechanism 2 positions the protective cover 22 and uses a screw to securely install it on the flywheel device 1. The sealing ring 25 on the inner side of the fixing ring 21 and the sealing ring 24 on the outer wall of the protective cover 22 are pressed and contacted to form a reliable seal, effectively preventing external dust, moisture and other impurities from entering the area where the mounting ring 3 and the positioning mechanism 4 are located, providing good protection for the internal structure and extending the service life of each component.

[0040] In use, when the flywheel device 1 needs to be installed, it is placed on top of the diesel engine. The mounting end of the diesel engine has multiple positioning holes. Before installation, the control lever 413 is manually moved. During the movement of the control lever 413, the control ring 41 rotates. When the control ring 41 rotates, multiple arc-shaped blocks 412 contact multiple extrusion plates 44, allowing multiple positioning blocks 45 to be inserted into the multiple positioning holes, thus positioning the flywheel device 1. During positioning, when the control lever 413 stops moving, spring 47... The damper 48 allows the insert plate 410 to be inserted into the inner wall of the slot, thereby initially fixing the control rod 413. After the bolt 43 is tightened manually, the side of the compression ring 46 near the fixing frame 42 will press against the outer wall of the fixing frame 42, thereby fixing the control rod 413. After the control rod 413 is fixed, the control ring 41 and multiple arc blocks 412 can be fixed, thereby positioning the flywheel device 1. After positioning is completed, the flywheel device 1 can be fixed by fixing parts.

[0041] After the fixing is completed, the protective cover 22 is put on. When the protective cover 22 is put on, it can be positioned by multiple positioning rods 23. The protective cover 22 can be fixed by multiple screws. After the protective cover 22 is fixed, the connection can be sealed by sealing ring 25 and sealing ring 24, thereby protecting the mounting ring 3 and positioning mechanism 4.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A mounting structure for a diesel engine flywheel, comprising a flywheel assembly (1) and a mounting ring (3) fixedly disposed inside the flywheel assembly (1), characterized in that: The mounting ring (3) is provided with a positioning mechanism (4) on its inner side, and the flywheel device (1) is provided with a protective mechanism (2) on its outer wall; The protective mechanism (2) is located outside the positioning mechanism (4); The positioning mechanism (4) includes a positioning part and an auxiliary part; The positioning part includes a control ring (41) and a control rod (413), and the auxiliary part includes a plug plate (410) and a fixing plate (49); The inner side of the mounting ring (3) is slidably connected to the outer wall of the control ring (41). Multiple extrusion plates (44) are slidably arranged on the inner side of the mounting ring (3). Multiple positioning blocks (45) are fixedly arranged on the outer walls of the multiple extrusion plates (44). Multiple arc-shaped blocks (412) are fixedly arranged on the inner side of the control ring (41). The outer walls of the multiple arc-shaped blocks (412) are slidably connected to the outer walls of the multiple extrusion plates (44).

2. The mounting structure for a diesel engine flywheel according to claim 1, characterized in that: The protective mechanism (2) includes a protective cover (22). The side of the protective cover (22) near the flywheel device (1) is in contact with the outer wall of the flywheel device (1). The outer wall of the protective cover (22) is movably connected to the flywheel device (1) through multiple screws. Multiple positioning rods (23) are fixedly provided on the outer wall of the flywheel device (1). The side of the multiple positioning rods (23) near the protective cover (22) extends through the side of the protective cover (22) near the flywheel device (1) to the outside of the protective cover (22).

3. The mounting structure for a diesel engine flywheel according to claim 1, characterized in that: The outer wall of the mounting ring (3) is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to the outer wall of the control rod (413), the outer wall of the control rod (413) is fixedly connected to the inner side of the control ring (41), and a fixing bracket (42) is fixedly provided on the outer wall of the mounting ring (3), and a through groove is provided on the front of the fixing bracket (42).

4. The mounting structure for a diesel engine flywheel according to claim 3, characterized in that: A bolt (43) is provided on the inner wall of the through groove. The bolt (43) is threaded through the outer wall of the control rod (413) and extends into the inside of the control rod (413) on one side near the control rod (413). A compression ring (25) is fixedly sleeved on the surface of the bolt (43). The side of the compression ring (25) near the fixing frame (42) contacts the outer wall of the fixing frame (42). A wedge-shaped groove is opened on the inner side of the mounting ring (3). A wedge-shaped block (411) is slidably arranged on the inner wall of the wedge-shaped groove. The side of the wedge-shaped block (411) near the extrusion plate (44) is fixedly connected to the outer wall of the extrusion plate (44).

5. The mounting structure for a diesel engine flywheel according to claim 1, characterized in that: The outer wall of the mounting ring (3) is slidably connected to the side of the fixing plate (49) near the mounting ring (3). The outer wall of the insert plate (410) is fixedly extended through the outer wall of the fixing plate (49) to the side of the fixing plate (49) near the control rod (413). The outer wall of the control rod (413) is provided with a slot. The outer wall of the insert plate (410) is slidably connected to the inner wall of the slot.

6. The mounting structure for a diesel engine flywheel according to claim 5, characterized in that: A spring (47) and a damper (48) are fixedly installed on one side of the fixed plate (49) near the control rod (413). The side of the spring (47) and the damper (48) near the control rod (413) are fixedly connected to the outer wall of the control rod (413). The spring (47) is initially in an extended state.

7. The mounting structure for a diesel engine flywheel according to claim 2, characterized in that: The flywheel device (1) has a fixed ring (21) fixedly installed on its outer wall. The inner side of the fixed ring (21) has a compression ring (25) fixedly installed. The outer wall of the protective cover (22) has a sealing ring (24) fixedly installed. The outer wall of the sealing ring (24) is in compression contact with the outer wall of the compression ring (25).