Automobile flywheel convenient to disassemble and assemble

By creating openings on the surfaces of the inner and outer wheels of the flywheel and utilizing an elastic structure and locating pins, the problem of inconvenient flywheel disassembly and assembly in existing technologies is solved, enabling a convenient disassembly and assembly process.

CN224135095UActive Publication Date: 2026-04-17XIAMEN XINRUIHE MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN XINRUIHE MACHINERY MANUFACTURING CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing car flywheel has a relatively inconvenient gear ring engagement during disassembly and assembly, which makes operation difficult.

Method used

Openings are made on the surfaces of the inner and outer wheels, and the flywheel is limited and positioned by a snap-fit ​​rod and a positioning pin with an elastic structure, simplifying the disassembly and assembly process.

Benefits of technology

This design makes the flywheel less prone to rotation during assembly and disassembly, facilitating operation and improving the assembly efficiency of the gear ring and flywheel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile flywheel convenient to disassemble and assemble, which comprises an inner wheel, the outer ring of the inner wheel is fixedly connected with a middle wheel, the outer ring of the middle wheel is fixedly connected with an outer wheel, the outer ring of the outer wheel is fixedly connected with a gear ring, the surface of the inner wheel and the surface of the outer wheel are both provided with a plurality of through holes, and the through holes are communicated with the inner wheel and the outer wheel. A plurality of containing grooves are formed in the front side face of the middle wheel, and clamping rods are arranged in inner cavities of the containing grooves in a drawing mode through elastic structures. According to the automobile flywheel convenient to disassemble and assemble, after the multiple through openings are formed in the surfaces of the inner wheel and the outer wheel, when the flywheel is disassembled and assembled, a rod does not need to be used for clamping the surface of the gear ring, the rod can be used for penetrating through the through openings to abut against the transmission box, and the flywheel is limited; therefore, it can be guaranteed that the flywheel is not prone to rotating in the disassembling and assembling process, and disassembling and assembling operation of the flywheel is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of automotive flywheel technology, specifically to an automotive flywheel that is easy to disassemble and install. Background Technology

[0002] Automotive flywheels have a large moment of inertia, and their main functions include storing energy and inertia to ensure smooth engine operation, assisting engine starting, ensuring uniform and stable torque and speed output from the engine, and calibrating and adjusting ignition timing or fuel injection timing. Flywheels are classified into ordinary single-mass flywheels and dual-mass flywheels.

[0003] In the existing technology, the car flywheel is an indispensable key component in the car engine. However, in the installation and disassembly process of the existing car flywheel, in order to prevent the flywheel from rotating during the installation and disassembly process, a rod needs to be inserted into the outside of the gear ring. However, the gear ring is relatively inconvenient to engage, which is not conducive to the disassembly and assembly of the car flywheel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a convenient car flywheel that is easy to disassemble and install, solving the problem that the existing car flywheels have inconvenient gear ring engagement, which is detrimental to the disassembly and assembly of the car flywheel.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a car flywheel that is easy to disassemble and install, including an inner wheel, a middle wheel fixedly connected to the outer ring of the inner wheel, an outer wheel fixedly connected to the outer ring of the middle wheel, a toothed ring fixedly connected to the outer ring of the outer wheel, and several openings on the surfaces of the inner wheel and the outer wheel.

[0006] The front side of the middle wheel is provided with several receiving grooves. The inner cavity of the receiving groove is provided with a snap-fit ​​rod through an elastic structure. The other end of the snap-fit ​​rod extends to the outside of the outer wheel. The inner wall of the gear ring is provided with several snap-fit ​​grooves that are adapted to the snap-fit ​​rod.

[0007] Furthermore, the outer ring of the outer wheel is fixedly connected with several positioning pins, and the inner wall surface of the gear ring is provided with several pin grooves that are adapted to the positioning pins.

[0008] Furthermore, the elastic structure includes a connecting plate and an elastic rod. The connecting plate is fixedly connected to one end of the snap-fit ​​rod, and the elastic rod is laterally fixed between the inner side of the connecting plate and the inner end face of the inner wall of the receiving groove.

[0009] Furthermore, the plurality of openings are arranged in a uniformly spaced annular pattern along the surfaces of the inner wheel and the outer wheel.

[0010] Furthermore, a fixing ring is detachably provided on the side wall of the middle wheel, and a number of abutment blocks adapted to the receiving groove are fixedly connected to the inner side of the fixing ring, and the surface of the abutment block is provided with a bevel.

[0011] Furthermore, the side wall of the fixing ring is provided with a number of screws, and the side wall of the middle wheel is provided with threaded holes that are compatible with the screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by opening several through holes on the surfaces of both the inner and outer wheels, it is not necessary to use a rod to clamp the surface of the gear ring during the disassembly and assembly of the flywheel. The rod can be used to pass through the through holes and abut against the transmission box to limit the flywheel, thereby ensuring that the flywheel does not easily rotate during disassembly and assembly, which facilitates the disassembly and assembly of the flywheel. Furthermore, during the assembly of the gear ring and the flywheel, the positioning pin can be embedded in the pin groove to position the gear ring and the flywheel, which facilitates the assembly of the gear ring and the flywheel. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of the receiving groove and the connecting plate in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the fixing ring and the contact block in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the bevel and the contact block in this utility model.

[0017] In the diagram: 1. Inner wheel; 2. Middle wheel; 3. Outer wheel; 4. Through port; 5. Gear ring; 6. Locating pin; 7. Pin groove; 8. Retaining ring; 9. Screw; 10. Receiving groove; 11. Connecting plate; 12. Elastic rod; 13. Snap-fit ​​rod; 14. Snap-fit ​​groove; 15. Abutting block; 16. Bevel; 17. Threaded hole. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4This utility model provides a technical solution: a car flywheel that is easy to disassemble and install, including an inner wheel 1, a middle wheel 2 fixedly connected to the outer ring of the inner wheel 1, an outer wheel 3 fixedly connected to the outer ring of the middle wheel 2, and a toothed ring 5 fixedly connected to the outer ring of the outer wheel 3. The surfaces of the inner wheel 1 and the outer wheel 3 are provided with several through holes 4. The inner wheel 1, the middle wheel 2 and the outer wheel 3 constitute a flywheel.

[0020] The front side of the middle wheel 2 is provided with several receiving grooves 10. The inner cavity of the receiving groove 10 is provided with a snap-fit ​​rod 13 through an elastic structure. The other end of the snap-fit ​​rod 13 extends to the outside of the outer wheel 3. The inner wall of the gear ring 5 is provided with several snap-fit ​​grooves 14 that are adapted to the snap-fit ​​rod 13.

[0021] After several openings 4 are opened on the surfaces of both the inner wheel 1 and the outer wheel 3, it is not necessary to use a rod to clamp the surface of the gear ring 5 when disassembling and assembling the flywheel. The rod can be used to pass through the openings 4 and abut against the transmission box to limit the flywheel, thereby ensuring that the flywheel does not easily rotate during disassembly and assembly, which facilitates the disassembly and assembly of the flywheel.

[0022] The outer ring of the outer wheel 3 is fixedly connected with several positioning pins 6, and the inner wall of the gear ring 5 is provided with several pin grooves 7 that are adapted to the positioning pins 6.

[0023] During the assembly of the gear ring 5 and the flywheel, the positioning pin 6 is inserted into the pin groove 7 to position the gear ring 5 and the flywheel, which facilitates the assembly of the gear ring 5 and the flywheel.

[0024] The elastic structure includes a connecting plate 11 and an elastic rod 12. The connecting plate 11 is fixedly connected to one end of the snap-fit ​​rod 13, and the elastic rod 12 is horizontally fixedly connected between the inner side of the connecting plate 11 and the inner end face of the inner wall of the receiving groove 10.

[0025] Multiple openings 4 are evenly spaced and distributed in a ring along the surfaces of the inner wheel 1 and the outer wheel 3.

[0026] The side wall of the middle wheel 2 is provided with a fixing ring 8. Several abutment blocks 15 that are adapted to the receiving groove 10 are fixedly connected to the inner side of the fixing ring 8. The surface of the abutment block 15 is provided with a bevel 16.

[0027] After the abutment block 15 is inserted into the receiving groove 10, the connecting plate 11 can be pushed to move. After the connecting plate 11 drives the locking rod 13 to be inserted into the locking groove 14, the gear ring 5 can be locked.

[0028] The side wall of the retaining ring 8 is provided with several screws 9, and the side wall of the middle wheel 2 is provided with threaded holes 17 that are compatible with the screws 9.

[0029] After the screw 9 is threaded into the threaded hole 17, the retaining ring 8 can be fixed, thereby fixing the state of the abutment block 15 embedded in the receiving groove 10. The snap-fit ​​structure is existing technology and will not be described in detail here.

[0030] During operation, after several through-holes 4 are opened on the surfaces of both the inner wheel 1 and the outer wheel 3, it is possible to disassemble and assemble the flywheel without using a rod to clamp the surface of the gear ring 5. The rod can be used to pass through the through-hole 4 and abut against the transmission box to limit the flywheel, thereby ensuring that the flywheel does not easily rotate during disassembly and assembly, which facilitates the disassembly and assembly of the flywheel. Furthermore, during the assembly of the gear ring 5 and the flywheel, the positioning pin 6 is embedded in the pin groove 7 to position the gear ring 5 and the flywheel, which facilitates the assembly of the gear ring 5 and the flywheel.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flywheel for a vehicle, which is easy to mount and dismount, comprising an inner wheel (1), characterized in that: The outer ring of the inner wheel (1) is fixedly connected to the middle wheel (2), the outer ring of the middle wheel (2) is fixedly connected to the outer wheel (3), the outer ring of the outer wheel (3) is fixedly connected to the toothed ring (5), and the surfaces of the inner wheel (1) and the outer wheel (3) are provided with several through holes (4). The front side of the middle wheel (2) is provided with several receiving grooves (10). The inner cavity of the receiving groove (10) is provided with a snap-fit ​​rod (13) by means of an elastic structure. The other end of the snap-fit ​​rod (13) extends to the outside of the outer wheel (3). The inner wall of the gear ring (5) is provided with several snap-fit ​​grooves (14) that are adapted to the snap-fit ​​rod (13).

2. A flywheel for a vehicle according to claim 1, wherein: The outer ring of the outer wheel (3) is fixedly connected with several positioning pins (6), and the inner wall of the gear ring (5) is provided with several pin grooves (7) that are adapted to the positioning pins (6).

3. A flywheel for a vehicle according to claim 1, wherein: The elastic structure includes a connecting plate (11) and an elastic rod (12). The connecting plate (11) is fixedly connected to one end of the snap-fit ​​rod (13). The elastic rod (12) is horizontally fixed between the inner side of the connecting plate (11) and the inner end face of the inner wall of the receiving groove (10).

4. The easily detachable and mountable automotive flywheel as claimed in claim 1 wherein: The multiple openings (4) are arranged in a uniformly spaced annular pattern along the surfaces of the inner wheel (1) and the outer wheel (3).

5. The easily detachable and mountable automotive flywheel as claimed in claim 1 wherein: The side wall of the middle wheel (2) is provided with a fixing ring (8), and the inner side of the fixing ring (8) is fixedly connected with a number of abutting blocks (15) that are adapted to the receiving groove (10). The surface of the abutting block (15) is provided with a bevel (16).

6. A flywheel for a vehicle according to claim 5, wherein: The side wall of the fixing ring (8) is provided with a number of screws (9), and the side wall of the middle wheel (2) is provided with threaded holes (17) that are adapted to the screws (9).