Anti-falling flywheel for diesel engine

Abstract

The utility model discloses an anti-falling flywheel for a diesel engine, and relates to the technical field of diesel engine flywheels. Comprising a flywheel body, an external fixing body is connected to the interior of the flywheel body through bolts, a bolting body is fixedly connected to the bottom of the flywheel body, a gear ring and an anti-disengaging device are fixedly connected to the outer wall of the flywheel body, and the outer wall of the anti-disengaging device is slidably connected with the inner wall of the flywheel body; according to the anti-disengaging device, when the anti-disengaging device is installed, firstly, the clamping disc is fixed to the crankshaft disc through a limiting block on the clamping disc, and by means of the structural characteristics that one side of the limiting block is fixed to the outer wall of the clamping disc, and the other side of the limiting block is connected with a groove of the crankshaft disc in a clamped mode, primary positioning of the clamping disc is achieved; and then the locking disc is installed, due to the arc-shaped design of the sliding grooves in the locking disc, the clamping tongues are clamped into the tongue grooves in the crankshaft disc in the rotating process, and therefore further stable connection is achieved through cooperation of the clamping tongues and the tongue grooves.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine flywheel technology, specifically to an anti-detachment flywheel for diesel engines. Background Technology

[0002] In the operating system of a diesel engine, the flywheel, as one of the key components, undertakes important missions such as storing and releasing energy and ensuring the smooth operation of the engine.

[0003] However, existing technologies for traditional diesel engine flywheel assemblies have gradually revealed numerous problems in practical applications, which urgently need to be addressed. Diesel engines operate in harsh environments, constantly experiencing high vibrations. These intense vibrations continuously impact the connection structure between the flywheel and components such as the crankshaft, making conventional connections prone to loosening. Previously, flywheel fixation relied primarily on ordinary bolts, which, under prolonged high-frequency vibrations, can easily cause displacement or even detachment. This not only causes the diesel engine to instantly lose power transmission stability, leading to power interruption, but can also cause severe collision damage to surrounding components, significantly increasing maintenance costs and downtime, and seriously affecting the continuity of production operations. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an anti-detachment flywheel for diesel engines, comprising: a flywheel body, an outer fixing body bolted internally to the flywheel body, a bolted connection body fixedly connected to the bottom of the flywheel body, a gear ring fixedly connected to the outer wall of the flywheel body, and an anti-detachment device, the outer wall of the anti-detachment device being slidably connected to the inner wall of the flywheel body. The anti-detachment device includes a locking body and a snap-fit ​​body. The snap-fit ​​body includes a snap-fit ​​disc, and the locking body includes a locking disc. A sliding groove is formed in the wall of the locking disc, and the sliding groove is arranged in a ring along the central axis of the locking disc. A latch is slidably connected to the inner wall of the snap-fit ​​disc. A gear at the bottom of the locking disc meshes with a gear at the top of the snap-fit ​​disc. The inner wall of the sliding groove is slidably connected to the shaft of the latch. The displacement of the anti-detachment device is restricted through the connection between the latch and the groove.

[0005] Preferably, the outer fixing body includes an outer fixing plate, a limit bolt is bolted inside the outer fixing plate, a torque bolt is bolted inside the outer fixing plate, the bottom of the outer fixing plate and the top of the locking plate are threadedly connected by the limit bolt, and the outer fixing body is fixed to the flywheel body by the torque bolt.

[0006] Preferably, the bolted body includes a crankshaft disc, a flywheel bolt is bolted to the bottom of the crankshaft disc, and a tongue groove is formed on the inner wall of the crankshaft disc. The tongue groove is arranged in a ring along the central axis of the crankshaft disc. The flywheel bolt allows the bolted body to be fixed to the crankshaft.

[0007] Preferably, the top of the crankshaft disc is fixedly connected to the bottom of the flywheel body, the crankshaft disc is connected to the snap-fit ​​disc via a limiting block, one side of the limiting block is fixedly connected to the outer wall of the snap-fit ​​disc, the other side of the limiting block is snap-fitted to the groove of the crankshaft disc, and the inner wall of the tongue groove is slidably connected to the outer wall of the snap tongue. By snapping the crankshaft disc with the limiting block, the position of the snap-fit ​​disc is restricted.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model has an anti-detachment device. In the anti-detachment device, the locking disc and the snap-fit ​​disc are connected by a one-way gear. During installation, the gear can rotate smoothly in the direction of the gear to complete the assembly. In the high-vibration working environment of the diesel engine, due to the one-way characteristic of the gear, the connection between the two is tight and not easy to loosen.

[0010] 2. By setting up a bolted main body, when the bolted main body is fixed to the flywheel bolt, the bottom surface of the clamping plate abuts against the flywheel bolt on the crankshaft plate to prevent the flywheel bolt from loosening under vibration conditions. The sliding connection design of the clamping tongue and the tongue groove makes the connection increasingly tight during operation with the help of centrifugal force, further reducing the axial displacement of the flywheel. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is a schematic diagram of the anti-detachment device of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the outer fixing body of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the bolted main body of this utility model;

[0016] Figure 6 This is a schematic diagram of the locking body of this utility model;

[0017] Figure 7 This is a schematic diagram of the structure of the snap-fit ​​main body of this utility model.

[0018] In the diagram: 1. Flywheel body; 2. External fixing body; 3. Anti-detachment device; 4. Bolted body; 5. Gear ring; 6. Locking body; 7. Snap-fit ​​body; 21. External fixing plate; 22. Limit bolt; 23. Torque bolt; 41. Crankshaft plate; 42. Flywheel bolt; 43. Tongue groove; 61. Locking plate; 62. Slide groove; 71. Snap-fit ​​plate; 72. Snap tongue; 73. Limit block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] Example:

[0021] Please see Figure 1 - Figure 7 This utility model provides a technical solution: an anti-detachment flywheel for a diesel engine, comprising: a flywheel body 1, an outer fixing body 2 bolted internally to the flywheel body 1, a bolted body 4 fixedly connected to the bottom of the flywheel body 1, a gear ring 5 fixedly connected to the outer wall of the flywheel body 1, and an anti-detachment device 3, the outer wall of the anti-detachment device 3 being slidably connected to the inner wall of the flywheel body 1, the anti-detachment device 3 including a locking body 6 and a snap-fit ​​body 7, the snap-fit ​​body 7 including a snap-fit ​​disc 71, and the locking body 6 including a locking disc 61, the wall of the locking disc 61 being open A sliding groove 62 is provided, and the sliding groove 62 is arranged in a ring along the central axis of the locking disc 61. A latch 72 is slidably connected to the inner wall of the locking disc 71. The gear at the bottom of the locking disc 61 meshes with the gear at the top of the locking disc 71. The inner wall of the sliding groove 62 is slidably connected to the shaft of the latch 72. The locking disc 61 and the locking disc 71 are connected by meshing gears, and the gears are unidirectional gears, so that they can be installed smoothly by rotating in the direction of the gears when fixing the two. In use, the gears can only rotate in the same direction, and they are not easy to loosen in high-vibration working environments.

[0022] The outer fixed body 2 includes an outer fixed plate 21. A limit bolt 22 is bolted inside the outer fixed plate 21, and a torque bolt 23 is bolted inside the outer fixed plate 21. The bottom of the outer fixed plate 21 is threadedly connected to the top of the locking plate 61 by the limit bolt 22. The outer fixed plate 21 and the locking plate 61 are connected by the torque bolt 23, which serves to fix the locking plate 61 and transmit part of the torque to the flywheel body 1 through the torque bolt 23.

[0023] The bolted body 4 includes a crankshaft disc 41, with a flywheel bolt 42 bolted to the bottom of the crankshaft disc 41. The inner wall of the crankshaft disc 41 has a tongue groove 43, which is arranged in a ring along the central axis of the crankshaft disc 41. When the anti-detachment device 3 is fixed inside the flywheel body 1, the bottom surface of the snap-fit ​​disc 71 just abuts against the flywheel bolt 42 on the crankshaft disc 41, making it difficult for the flywheel bolt 42 to loosen.

[0024] The top of the crankshaft disc 41 is fixedly connected to the bottom of the flywheel body 1. The crankshaft disc 41 is connected to the retaining plate 71 through the limiting block 73. One side of the limiting block 73 is fixedly connected to the outer wall of the retaining plate 71, and the other side of the limiting block 73 is engaged with the groove of the crankshaft disc 41. The inner wall of the tongue groove 43 is slidably connected to the outer wall of the retaining tongue 72. Through the connection between the retaining tongue 72 and the tongue groove 43, the crankshaft disc 41 is more firmly connected to the anti-detachment device 3. During operation, due to the centrifugal force, the retaining tongue 72 is thrown outward, making the connection effect stronger.

[0025] Working principle:

[0026] When in use, first fix the flywheel body 1 to the crankshaft using the flywheel bolt 42 on the crankshaft disc 41, tighten the flywheel bolt 42, and then install the anti-detachment device 3.

[0027] When installing the anti-detachment device 3, firstly, the retaining plate 71 is fixed to the crankshaft disk 41 by the limiting block 73 on the retaining plate 71. Utilizing the structural feature that one side of the limiting block 73 is fixed to the outer wall of the retaining plate 71 and the other side engages with the groove of the crankshaft disk 41, the retaining plate 71 is initially positioned. Next, the locking plate 61 is installed corresponding to the position of the locking tongue 72 on the retaining plate 71. It is crucial to ensure that the sliding groove 62 in the locking plate 61 accurately aligns with the shaft of the locking tongue 72, which is a key prerequisite for the normal operation of the locking tongue 72. Then, the locking plate 61 is rotated. Due to the arc-shaped design of the sliding groove 62 in the locking plate 61, the locking tongue 72 will extend outward along the inner wall of the sliding groove 62 during rotation, and then engage with the tongue groove 43 in the crankshaft disk 41. In this way, the cooperation between the locking tongue 72 and the tongue groove 43 achieves a further stable connection, effectively preventing the flywheel from detaching due to axial displacement.

[0028] In the outer fixed body 2, the outer fixed plate 21 is first installed in the flywheel body 1 with the corresponding bolt holes to ensure that its installation position is accurate. Then, the limiting bolt 22 is inserted to connect the outer fixed plate 21 and the locking plate 61. This connection establishes a tight connection between the anti-detachment device 3 and the outer fixed body 2, enhancing the stability of the overall structure. After that, the torque bolt 23 is inserted to firmly fix the outer fixed plate 21 and the flywheel body 1.

[0029] At this point, after the above components are installed and connected in sequence, the flywheel body 1, the outer fixing body 2, the anti-detachment device 3, and the bolted body 4 will be connected into a tight device. The components work together to ensure that the flywheel can transmit power normally during the operation of the diesel engine, and to prevent the flywheel from falling off unexpectedly, thus ensuring the stable operation of the diesel engine.

[0030] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A flywheel for diesel engines with anti-detachment features, characterized in that, include: The flywheel body (1) has an external fastening body (2) bolted inside, a bolted body (4) fixedly connected to the bottom of the flywheel body (1), and a gear ring (5) fixedly connected to the outer wall of the flywheel body (1). Anti-detachment device (3), the outer wall of the anti-detachment device (3) is slidably connected to the inner wall of the flywheel body (1), the anti-detachment device (3) includes a locking body (6) and a snap-fit ​​body (7); The snap-fit ​​body (7) includes a snap-fit ​​disc (71), and the locking body (6) includes a locking disc (61). The wall of the locking disc (61) is provided with a sliding groove (62), and the sliding groove (62) is arranged in a ring along the central axis of the locking disc (61). The inner wall of the snap-fit ​​disc (71) is slidably connected with a snap tongue (72).

2. The anti-detachment flywheel for a diesel engine according to claim 1, characterized in that: The gear at the bottom of the locking disc (61) meshes with the gear at the top of the locking disc (71), and the inner wall of the slide groove (62) is slidably connected to the shaft of the latch (72).

3. The anti-detachment flywheel for a diesel engine according to claim 1, characterized in that: The outer fixing body (2) includes an outer fixing plate (21), a limit bolt (22) is bolted inside the outer fixing plate (21), and a torque bolt (23) is bolted inside the outer fixing plate (21).

4. The anti-detachment flywheel for a diesel engine according to claim 3, characterized in that: The bottom of the outer fixing plate (21) and the top of the locking plate (61) are threaded together by a limiting bolt (22).

5. The anti-detachment flywheel for a diesel engine according to claim 1, characterized in that: The bolted body (4) includes a crankshaft disc (41), a flywheel bolt (42) is bolted to the bottom of the crankshaft disc (41), and a tongue groove (43) is provided on the inner wall of the crankshaft disc (41), and the tongue groove (43) is arranged in a ring along the central axis of the crankshaft disc (41).

6. The anti-detachment flywheel for a diesel engine according to claim 5, characterized in that: The top of the crankshaft disc (41) is fixedly connected to the bottom of the flywheel body (1). The crankshaft disc (41) is connected to the snap-fit ​​disc (71) through a limiting block (73). One side of the limiting block (73) is fixedly connected to the outer wall of the snap-fit ​​disc (71), and the other side of the limiting block (73) is snapped into the groove of the crankshaft disc (41). The inner wall of the tongue groove (43) is slidably connected to the outer wall of the snap tongue (72).

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