Combined flywheel tooth disc for diesel engine
By designing disassembly and anti-detachment components on the flywheel sprocket, the problem of inconvenient disassembly when the gear ring is damaged is solved, enabling quick replacement and stable installation, and improving disassembly efficiency and installation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU YUGUAN MASCH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-12
AI Technical Summary
Existing combined flywheel sprockets and gear rings are difficult to disassemble quickly when damaged, making replacement inconvenient and requiring heating or the use of destructive tools.
The design incorporates a disassembly and anti-detachment component. The disassembly and detachment component enables quick disassembly of the gear ring through the cooperation of a pull rod, a sleeve block, and a spring, while the anti-detachment component ensures stable installation of the gear ring and flywheel through the cooperation of a screw and a pressure ring.
It enables quick replacement of gear rings, avoiding the use of heating or destructive tools, and improves installation stability and disassembly efficiency.
Smart Images

Figure CN224352327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel engine flywheel gear plate technology, specifically a combined flywheel gear plate for diesel engines. Background Technology
[0002] A diesel engine is an internal combustion engine that generates power through the combustion of diesel fuel. Its working principle is based on compression ignition and it is widely used in industry, transportation, agriculture and other fields. A combined flywheel and gear disc refers to a mechanical component that combines a flywheel and a gear disc into one unit through a specific process. It is installed at the end of the crankshaft of a diesel engine and is mainly used to transmit power, store rotational inertia, and provide a meshing gear ring for the starter motor to realize the starting function of the diesel engine. Its "combined" feature is reflected in the separate design and integrated application of the flywheel and gear disc, which is different from the traditional single-structure flywheel or gear disc.
[0003] When using a flywheel sprocket, the gear ring is prone to damage. Existing modular flywheel sprockets do not allow for easy disassembly of the gear ring, making gear ring replacement inconvenient.
[0004] Therefore, we propose a combined flywheel gear for diesel engines that allows for quick disassembly of the gear ring without the need for heating or the use of destructive tools, thereby improving replacement efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a combined flywheel gear for diesel engines to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined flywheel gear for a diesel engine, comprising a flywheel, a gear ring snapped onto the side wall of the flywheel, an assembly hole provided inside the flywheel, and a processing component disposed on the side of the flywheel, the processing component including a disassembly and assembly component disposed on the side of the flywheel, and an anti-detachment component disposed on the outside of the disassembly and assembly component.
[0007] Preferably, the disassembly and assembly assembly includes a mounting rod fixedly installed on the side wall of the flywheel, a retaining plate slidably disposed inside the mounting rod, a limiting plate fixedly installed on the outer wall of the retaining plate, a connecting plate hinged to the side wall of the retaining plate, a sleeve block hinged to the end of the connecting plate away from the retaining plate, a sleeve rod slidably disposed inside the sleeve block, a spring sleeved on the outer wall of the sleeve rod, a pull rod fixedly installed on the outer wall of the sleeve block, an installation hole opened inside the gear ring, and a retaining groove opened on the inner wall of the installation hole.
[0008] Preferably, the anti-detachment component includes a threaded hole formed on the side wall of the flywheel, a through hole provided on the side of the threaded hole, a screw sleeved inside the threaded hole, a pressure ring sleeved on the outer wall of the screw, and an inner groove formed inside the pressure ring.
[0009] Preferably, the outer wall of the card plate is engaged with the inside of the card slot, and the outer wall of the mounting rod is fitted into the inside of the mounting hole. Under these constraints, the gear ring and the flywheel can be installed.
[0010] Preferably, the end of the sleeve rod is fixedly installed inside the mounting rod near the flywheel, and the outer wall of the pull rod is slidably disposed inside the mounting rod. Under the restriction of the sleeve rod, the sliding of the sleeve block can be restricted, and the pull rod can pull the sleeve block.
[0011] Preferably, the outer wall of the screw is fitted inside the through hole, and the end of the screw is fitted inside the inner groove. Under the constraint of the screw, the pressure ring can press against the gear ring.
[0012] Preferably, the pressure ring is fitted inside the flywheel and the through hole is opened inside the gear ring. The pressure ring, in conjunction with the screw and the through hole, stably installs the gear ring and the flywheel.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This diesel engine uses a combined flywheel gear, which is composed of a disassembly and assembly component. When the gear ring is damaged, it needs to be disassembled from the flywheel. Pulling the pull rod causes the sleeve block to slide on the outer wall of the sleeve rod, compressing the spring fitted on the outer wall of the sleeve rod. Since the end of the connecting plate is hinged to the clamping plate and the sleeve block respectively, under its constraint, the sleeve block pulls the clamping plate through the connecting plate, causing the clamping plate to slide into the mounting rod. At this time, the outer wall of the clamping plate is no longer engaged with the inside of the clamping groove, and the gear ring can be removed from the outer wall of the mounting rod. After disassembly, the mounting hole opened inside the new gear ring is fitted onto the mounting rod. At this time, the pull rod is released, and under the elastic action of the spring, the sleeve block is pushed. The sleeve block pushes the clamping plate through the connecting plate, causing the clamping plate to engage with the clamping groove opened on the inner wall of the mounting hole, and the new gear ring can be installed on the flywheel. This structure allows for quick replacement of damaged gear rings, avoiding the need for heating or the use of destructive tools during disassembly.
[0015] 2. The diesel engine uses a combined flywheel gear, which is composed of an anti-detachment component. After the gear ring and flywheel are installed by the disassembly and assembly component, in order to make the installation more stable, the pressure ring is sleeved on the outside of the flywheel. Then, the screw is inserted into the through hole opened inside the gear ring and threaded into the threaded hole, so that the pressure ring presses against the gear ring and prevents the gear ring from falling off the flywheel. Under the restriction of the inner groove, one end of the screw nut can be made to be on the same plane as the flywheel. This structure can prevent the gear ring from falling off, thereby improving the installation stability of the gear ring and flywheel. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the structure of this utility model.
[0017] Figure 2 This is an exploded three-dimensional view of the structure of this utility model.
[0018] Figure 3This is a structural assembly and disassembly diagram of the present utility model.
[0019] Figure 4 This is a cross-sectional schematic diagram of the disassembly and assembly components of this utility model.
[0020] Figure 5 This is a diagram of the anti-detachment component structure of this utility model.
[0021] Figure 6 This is a partial schematic diagram of the anti-detachment component of the present invention.
[0022] In the diagram: 1. Flywheel; 2. Gear ring; 3. Assembly hole; 4. Machining component; 41. Disassembly and assembly component; 43. Anti-detachment component; 411. Mounting rod; 412. Clamping plate; 413. Limiting plate; 414. Connecting plate; 415. Sleeve block; 416. Sleeve rod; 417. Spring; 418. Pull rod; 419. Mounting hole; 420. Slot; 431. Threaded hole; 432. Through hole; 433. Screw; 434. Pressure ring; 435. Inner groove. Detailed Implementation
[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0024] Example 1: A preferred embodiment of the combined flywheel gear for diesel engines provided by this utility model is as follows: Figures 1 to 6 As shown: A combined flywheel gear for a diesel engine, including a flywheel 1;
[0025] The flywheel 1 has a gear ring 2 attached to its side wall;
[0026] The flywheel 1 has an assembly hole 3 inside;
[0027] The processing component 4 is located on the side of the flywheel 1. The processing component 4 includes a disassembly and assembly component 41 located on the side of the flywheel 1. The disassembly and assembly component 41 includes a mounting rod 411 fixedly mounted on the side wall of the flywheel 1. A retaining plate 412 is slidably arranged inside the mounting rod 411. A limit plate 413 is fixedly installed on the outer wall of the retaining plate 412. A connecting plate 414 is hinged to the side wall of the retaining plate 412. A sleeve block 415 is hinged to the end of the connecting plate 414 away from the retaining plate 412. A sleeve rod 416 is slidably arranged inside the sleeve block 415. A spring 417 is sleeved on the outer wall of the sleeve rod 416. A pull rod 418 is fixedly installed on the outer wall of the sleeve block 415. An installation hole 419 is opened inside the gear ring 2. A groove 420 is opened on the inner wall of the installation hole 419.
[0028] In this embodiment, when the gear ring 2 is damaged, it needs to be disassembled from the flywheel 1. Pulling the pull rod 418 causes the sleeve block 415 to slide on the outer wall of the sleeve rod 416, compressing the spring 417 sleeved on the outer wall of the sleeve rod 416. Since the ends of the connecting plate 414 are hinged to the clamping plate 412 and the sleeve block 415 respectively, under its restriction, the sleeve block 415 pulls the clamping plate 412 through the connecting plate 414, causing the clamping plate 412 to slide into the mounting rod 411. At this time, the outer wall of the clamping plate 412 is no longer engaged with the inside of the slot 420, and the gear ring 2 can be removed. Remove the mounting rod 411 from its outer wall and disassemble it. Then, fit the mounting hole 419 inside the new gear ring 2 onto the mounting rod 411. At this time, release the pull rod 418. Under the elastic action of the spring 417, push the sleeve block 415. The sleeve block 415 pushes the clamping plate 412 through the connecting plate 414, so that the clamping plate 412 engages with the groove 420 inside the mounting hole 419. The new gear ring 2 can then be installed on the flywheel 1. This structure allows for quick replacement of damaged gear ring 2, avoiding the need for heating or using destructive tools during disassembly.
[0029] Furthermore, the outer wall of the card plate 412 is engaged with the inside of the card slot 420, and the outer wall of the mounting rod 411 is fitted into the inside of the mounting hole 419. Under these constraints, the gear ring 2 and the flywheel 1 can be installed.
[0030] Furthermore, the end of the sleeve rod 416 is fixedly installed inside the mounting rod 411 near the flywheel 1, and the outer wall of the pull rod 418 is slidably disposed inside the mounting rod 411. Under the restriction of the sleeve rod 416, the sliding of the sleeve block 415 can be restricted, and the pull rod 418 can pull the sleeve block 415.
[0031] Example 2: Based on Example 1, a preferred embodiment of the combined flywheel gear for diesel engines provided by this utility model is as follows: Figures 1 to 6 As shown: The anti-detachment component 43 includes a threaded hole 431 opened on the side wall of the flywheel 1, a through hole 432 provided on the side of the threaded hole 431, a screw 433 sleeved inside the threaded hole 431, a pressure ring 434 sleeved on the outer wall of the screw 433, and an inner groove 435 opened inside the pressure ring 434.
[0032] In this embodiment, after the assembly and disassembly component 41 installs the gear ring 2 and the flywheel 1, in order to make the installation more stable, the pressure ring 434 is sleeved on the outside of the flywheel 1, and then the screw 433 is threaded into the through hole 432 inside the gear ring 2 and threaded into the threaded hole 431, so that the pressure ring 434 presses the gear ring 2 to prevent the gear ring 2 from falling off the flywheel 1. Under the restriction of the inner groove 435, one end of the screw 433 nut can be on the same plane as the flywheel 1. This structure can prevent the gear ring 2 from falling off, thereby improving the installation stability of the gear ring 2 and the flywheel 1.
[0033] Furthermore, the outer wall of the screw 433 is fitted inside the through hole 432, and the end of the screw 433 is fitted inside the inner groove 435. Under the constraint of the screw 433, the pressure ring 434 can press against the gear ring 2.
[0034] In addition, the pressure ring 434 is fitted inside the outer wall of the flywheel 1, and the through hole 432 is opened inside the gear ring 2. The pressure ring 434, together with the screw 433 and the through hole 432, stably installs the gear ring 2 and the flywheel 1.
[0035] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.
Claims
1. A combined flywheel gear for a diesel engine, comprising a flywheel (1); The flywheel (1) has a gear ring (2) snapped into its side wall; The flywheel (1) has an assembly hole (3) inside; And a processing assembly (4) disposed on the side of the flywheel (1), characterized in that: The processing component (4) includes a disassembly and assembly component (41) disposed on the side of the flywheel (1), and an anti-detachment component (43) is disposed on the outside of the disassembly and assembly component (41).
2. The combined flywheel gear disc for a diesel engine according to claim 1, characterized in that: The assembly / disassembly assembly (41) includes an mounting rod (411) fixedly mounted on the side wall of the flywheel (1). A retaining plate (412) is slidably disposed inside the mounting rod (411). A limiting plate (413) is fixedly mounted on the outer wall of the retaining plate (412). A connecting plate (414) is hinged to the side wall of the retaining plate (412). A sleeve block (415) is hinged to the end of the connecting plate (414) away from the retaining plate (412). A sleeve rod (416) is slidably disposed inside the sleeve block (415). A spring (417) is sleeved on the outer wall of the sleeve rod (416). A pull rod (418) is fixedly mounted on the outer wall of the sleeve block (415). An installation hole (419) is opened inside the gear ring (2). A slot (420) is opened on the inner wall of the installation hole (419).
3. The combined flywheel gear disc for a diesel engine according to claim 1, characterized in that: The anti-detachment component (43) includes a threaded hole (431) opened on the side wall of the flywheel (1), a through hole (432) is provided on the side of the threaded hole (431), a screw (433) is sleeved inside the threaded hole (431), a pressure ring (434) is sleeved on the outer wall of the screw (433), and an inner groove (435) is opened inside the pressure ring (434).
4. A combined flywheel gear for a diesel engine according to claim 2, characterized in that: The outer wall of the card plate (412) is engaged with the inside of the card slot (420), and the outer wall of the mounting rod (411) is fitted inside the mounting hole (419).
5. A combined flywheel gear for a diesel engine according to claim 2, characterized in that: The end of the sleeve rod (416) is fixedly installed inside the mounting rod (411) near the flywheel (1), and the outer wall of the pull rod (418) is slidably disposed inside the mounting rod (411).
6. A combined flywheel gear for a diesel engine according to claim 3, characterized in that: The outer wall of the screw (433) is fitted inside the through hole (432), and the end of the screw (433) is fitted inside the inner groove (435).
7. A combined flywheel gear for a diesel engine according to claim 3, characterized in that: The pressure ring (434) is fitted inside the flywheel (1) and the through hole (432) is opened inside the gear ring (2).