Engine flywheel housing

Abstract

The utility model discloses an engine flywheel housing, including the casing, the outside installation of casing has the dismantling structure, and the middle position of casing is provided with the crank hole, and the inside installation of heat dissipation frame has the cooling fin, and the inside installation of cooling fin has the installation shaft, and the inside installation of installation shaft has the guide groove, and the inside installation of guide groove has the mounting block, and the inside installation rotating shaft of mounting block, and the middle position of rotating shaft installs the spring, and the bottom of spring installs the clamping block, and the side of clamping block installs the clamping groove. The utility model discloses through the cooling fin of heat dissipation frame inside installation makes the heat to be able to pass through more path transmission to external environment, and the air expansion is discharged through the heat dissipation hole, avoids the structural deformation or sealing failure caused by the barometric pressure difference, and the inside of installation shaft is provided with the guide groove, and the clamping block of rotating shaft is clamped into the clamping groove, and the spring is compressed, and the spring elasticity makes the clamping block always be clamped in the inside of clamping groove, and the overall structural strength is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of materials science and technology, and in particular to an engine flywheel housing. Background Technology

[0002] The engine flywheel housing is a key component in the internal combustion engine system, located between the engine and the transmission. The flywheel housing needs to bear the weight of the transmission and serve as a fulcrum for power transmission. Its main functions are to enclose the flywheel and provide a supporting connection. The flywheel housing protects the flywheel and clutch assembly from external contamination. Through optimized structural design and material selection, the flywheel housing reduces engine vibration and noise, ensures the stability of power transmission and the safety of the flywheel, and enhances operational smoothness.

[0003] To this end, Chinese patent application CN216382402U discloses an engine flywheel housing, comprising a cylindrical flywheel housing with a hollow interior. A mounting plate is integrally formed on the outer ring of the left end of the flywheel housing, and the mounting plate has multiple first fixing holes. A dust cover is provided on the right end of the flywheel housing, and bolts are respectively provided at the top, bottom, left, and right ends of the dust cover. Second fixing holes are respectively provided on the flywheel housing corresponding to the bolts. By installing a dust cover on the flywheel housing, dust intrusion is prevented, ensuring safe and reliable flywheel operation. The corresponding second fixing holes on the flywheel housing and dust cover, with bolts installed in these holes, improve the stability of the connection between the dust cover and the flywheel housing. Multiple heat dissipation holes are provided on the side wall of the flywheel housing, and dust filters are provided at the top and bottom ends of the dust cover, enabling good heat dissipation during engine operation and extending the service life of the device.

[0004] The aforementioned engine flywheel housing proposes to prevent dust intrusion by installing a dust cover on the flywheel housing, thus ensuring the safe and reliable use of the flywheel. Second fixing holes are correspondingly provided on both the flywheel housing and the dust cover, and bolts are installed in these holes to improve the stability of the connection between the dust cover and the flywheel housing. Multiple heat dissipation holes are provided on the side wall of the flywheel housing, and dust filters are installed at the upper and lower ends of the dust cover to ensure good heat dissipation during engine operation and extend the service life of the device. However, this device does not allow for convenient replacement of damaged components when the internal components of the heat dissipation holes are damaged, increasing the time cost for operators. Utility Model Content

[0005] The purpose of this invention is to provide an engine flywheel housing that addresses the shortcomings of existing engine flywheel housings in terms of ease of maintenance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an engine flywheel housing, including a housing;

[0007] The exterior of the housing is equipped with a disassembly structure, the top of the housing is equipped with a reinforcing structure, and a crankshaft hole is provided at the middle position of the housing.

[0008] The disassembly structure includes a heat dissipation frame disposed at the bottom of the outer wall of the housing, a heat dissipation fin is installed inside the heat dissipation frame, an installation shaft is installed inside the heat dissipation fin, and a guide groove is installed inside the installation shaft;

[0009] An installation block is installed inside the guide groove. A rotating shaft is installed inside the installation block. A spring is installed at the middle position of the rotating shaft. A locking block is installed at the bottom end of the spring. A locking groove is installed on one side of the locking block.

[0010] The mounting shaft has a guide groove inside. When the rotating shaft is pushed into the mounting block, the locking block on the rotating shaft engages with the groove. The elastic force of the spring keeps the locking block locked inside the groove, maintaining the stability of the structure.

[0011] Furthermore, the outer diameter of the card block is smaller than the inner diameter of the card slot, and the card block and the card slot form an engaging structure, which facilitates quick assembly of the card block and the card slot.

[0012] Furthermore, a cover plate is installed on the outside of the rotating shaft, and a heat dissipation hole is provided at the top of the cover plate to dissipate the heat from the heat dissipation frame.

[0013] Furthermore, an air outlet is provided at the top of the outer wall of the housing, and the air outlet is symmetrically distributed with the heat dissipation frame to optimize the airflow inside the heat dissipation frame.

[0014] Furthermore, the reinforcing structure includes a protrusion disposed on the outer wall of the housing, a reinforcing rib disposed at the top of the housing, a boss disposed at the middle position of the housing, and positioning holes disposed on both sides of the boss to enhance the local strength of the boss.

[0015] Furthermore, the positioning hole is provided with internal threads to facilitate precise positioning of other components.

[0016] Furthermore, multiple sets of reinforcing ribs are provided, and the reinforcing ribs are arranged at equal intervals on the outside of the boss to distribute the stress of the boss.

[0017] The present invention provides an engine flywheel housing, the advantages of which are: by setting up a disassembly structure, the internal structure of the external heat dissipation frame of the flywheel housing can be disassembled, so as to improve its effect; and by strengthening the structure, the structural strength of the flywheel housing can be improved.

[0018] The heat exchange system, consisting of a heat sink frame, heat sink fins, and mounting shaft, allows outside air to enter the heat sink frame through ventilation holes. After passing through the heat sink fins, the air carries heat and is discharged from the other side, creating a continuous heat exchange process. The cover plate is tightly fixed to the heat sink frame by the elastic force of a spring. When the rotating shaft is inserted into the mounting block, the spring is compressed and generates a rebound force, which prevents loosening due to vibration or thermal expansion and contraction. The guide groove inside the mounting shaft guides the rotating shaft to insert into the mounting block along a predetermined path, reducing operational errors.

[0019] By strengthening the structural design, the stiffeners effectively resist bending, torsional or compressive loads by increasing the moment of inertia of the cross section, preventing the components from deforming under high stress. The stiffeners guide the force flow along a specific path, reducing stress concentration, extending fatigue life, avoiding resonance with the engine excitation frequency, and the stiffener layout can block the transmission path of vibration waves, reducing noise. Attached Figure Description

[0020] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the disassembly structure of this utility model;

[0023] Figure 4 For the present utility model Figure 2 Enlarged cross-sectional view of a portion of point A in the middle section;

[0024] Figure 5 This is a three-dimensional structural diagram of the reinforcing structure of this utility model.

[0025] The reference numerals in the figure are as follows: 1. Housing; 2. Disassembly structure; 201. Heat sink frame; 202. Heat sink fin; 203. Mounting shaft; 204. Guide groove; 205. Mounting block; 206. Rotating shaft; 207. Spring; 208. Locking block; 209. Locking groove; 3. Reinforcing structure; 301. Protrusion; 302. Reinforcing rib; 303. Boss; 304. Positioning hole; 4. Crankshaft hole; 5. Air outlet; 6. Cover plate. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 As shown, one embodiment of the present invention is provided: an engine flywheel housing, including a housing 1.

[0028] The shell 1 is equipped with a disassembly structure 2 on its exterior and a reinforcing structure 3 on its top. The reinforcing structure 3 includes a protrusion 301 on the outer wall of the shell 1 and a reinforcing rib 302 on the top of the shell 1. Multiple sets of reinforcing ribs 302 are provided and are arranged at equal intervals on the exterior of the protrusion 303.

[0029] A boss 303 is installed at the middle position of the housing 1. Positioning holes 304 are provided on both sides of the boss 303. The positioning holes 304 are provided with internal threads. A crankshaft hole 4 is provided at the middle position of the housing 1.

[0030] Please see Figures 1-2 and Figure 5 As shown, the positioning hole 304 on the boss 303 is used to dock with other components to ensure the precise fit between the flywheel and the transmission system, avoid eccentricity of the crankshaft due to assembly deviation, and prevent bearing wear and vibration. The housing 1 bears the periodic torsional vibration of the crankshaft in the crankshaft hole 4. Radial reinforcing ribs 302 are set around the boss 303 to evenly distribute the stress from the boss 303 to the periphery of the housing 1, avoiding local stress concentration. The reinforcing ribs 302 improve the bending stiffness of the boss 303 on other components and prevent deformation from causing positioning failure.

[0031] The disassembly structure 2 includes a heat dissipation frame 201 located at the bottom of the outer wall of the housing 1, and an air outlet 5 located at the top of the outer wall of the housing 1. The air outlet 5 and the heat dissipation frame 201 are symmetrically distributed.

[0032] The heat sink 202 is installed inside the heat sink frame 201, the mounting shaft 203 is installed inside the heat sink 202, and the guide groove 204 is installed inside the mounting shaft 203.

[0033] An installation block 205 is installed inside the guide groove 204, a rotating shaft 206 is installed inside the installation block 205, and a cover plate 6 is installed outside the rotating shaft 206. A heat dissipation hole is provided at the top of the cover plate 6.

[0034] A spring 207 is installed at the middle position of the rotating shaft 206. A locking block 208 is installed at the bottom end of the spring 207. The outer diameter of the locking block 208 is smaller than the inner diameter of the locking groove 209. The locking block 208 and the locking groove 209 form a locking structure. The locking groove 209 is installed on one side of the locking block 208.

[0035] Please see Figures 1-4As shown, the heat dissipation frame 201 directly contacts the outside air through its large surface area, forming initial heat dissipation. The heat dissipation fins 202 installed inside allow heat to be transferred to the external environment through more paths. The dense arrangement of the heat dissipation fins 202 can increase the turbulence of airflow. The heat dissipation holes on the cover plate 6 can prevent the internal air pressure from rising due to temperature changes. When the temperature rises, the air expands and is discharged through the heat dissipation holes, avoiding structural deformation or sealing failure due to air pressure difference. The mounting shaft 203 has a guide groove 204 inside, which is connected to the rotating shaft 206 through the cover plate 6. When the rotating shaft 206 is pushed into the interior of the mounting block 205, the locking block 208 on the rotating shaft 206 is engaged in the slot 209, and the spring 207 is compressed. The elastic force of the spring 207 keeps the locking block 208 locked inside the slot 209, so that even if the equipment vibrates or is subjected to external impact, it can maintain the locked state.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An engine flywheel housing, comprising a housing (1); Its features are: The housing (1) is equipped with a disassembly structure (2) on its exterior, a reinforcing structure (3) is installed at the top of the housing (1), and a crankshaft hole (4) is provided at the middle position of the housing (1). The disassembly structure (2) includes a heat dissipation frame (201) disposed at the bottom of the outer wall of the housing (1). A heat dissipation fin (202) is installed inside the heat dissipation frame (201). An installation shaft (203) is installed inside the heat dissipation fin (202). A guide groove (204) is installed inside the installation shaft (203). An installation block (205) is installed inside the guide groove (204). A rotating shaft (206) is installed inside the installation block (205). A spring (207) is installed at the middle position of the rotating shaft (206). A locking block (208) is installed at the bottom end of the spring (207). A locking groove (209) is installed on one side of the locking block (208).

2. The engine flywheel housing according to claim 1, characterized in that: The outer diameter of the card block (208) is smaller than the inner diameter of the card slot (209), and the card block (208) and the card slot (209) form an engaging structure.

3. The engine flywheel housing according to claim 1, characterized in that: The rotating shaft (206) is fitted with a cover plate (6), and the top of the cover plate (6) is provided with heat dissipation holes.

4. The engine flywheel housing according to claim 1, characterized in that: An air outlet (5) is provided at the top of the outer wall of the housing (1), and the air outlet (5) is symmetrically distributed with the heat dissipation frame (201).

5. An engine flywheel housing according to claim 1, characterized in that: The reinforcing structure (3) includes a protrusion (301) disposed on the outer side wall of the housing (1), a reinforcing rib (302) disposed at the top of the housing (1), a boss (303) installed at the middle position of the housing (1), and positioning holes (304) disposed on both sides of the boss (303).

6. An engine flywheel housing according to claim 5, characterized in that: The positioning hole (304) has an internal thread inside.

7. An engine flywheel housing according to claim 5, characterized in that: The reinforcing ribs (302) are provided in multiple sets, and the reinforcing ribs (302) are arranged at equal intervals on the outside of the boss (303).

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