Engine flywheel housing

Abstract

The utility model provides an engine flywheel shell which comprises a flywheel shell body, a main shaft hole is formed in the center of the flywheel shell body, a plurality of edge connecting holes are formed in the edge of the flywheel shell body, a plurality of inner connecting holes are formed in the end face of the flywheel shell body, and a slag discharging end is arranged on the lower side of the flywheel shell body. The lower inner wall of the flywheel shell body is provided with inclined sediment holes which extend into the deslagging end and incline towards one side, the inclination direction of each inclined sediment hole is the same as the rotating direction of the flywheel, and the free end of each inclined sediment hole is communicated with an inclined deslagging hole which extends out of the lower end of the deslagging end and inclines towards the opposite direction of the lower end of the deslagging end. Each inclined sediment hole is connected with the corresponding inclined slag discharging hole to form a V shape with an opening facing one side, and an air inlet is formed in the side wall of the flywheel shell body. According to the flywheel, airflow can be generated through rotation of the flywheel, sediment is effectively removed, and meanwhile impurities in the external environment are prevented from entering a flywheel shell cavity.

Description

Technical Field

[0001] The utility model belongs to the field of engine components and relates to an engine flywheel housing. Background Art

[0002] As a key connecting component between the engine and the transmission, the engine flywheel housing not only bears the heavy responsibility of protecting the engine and the transmission, but also needs to maintain its structural integrity and functional stability in a complex working environment. In an engine system that uses a clutch transmission, the clutch will produce a certain amount of sediment due to wear and impact during long-term operation. If these sediments are not removed in time, they will accumulate at the rear end of the flywheel housing, which may not only cause abnormal noise, but in severe cases may even cause impact and damage to the clutch, thereby affecting the performance and reliability of the entire transmission system.

[0003] In order to solve this problem, dust removal holes are added to the bottom of the shell body in the existing flywheel shell design. However, there are limitations in the design of these dust removal holes. On the one hand, the diameter of the dust removal holes is usually small, such as the common 12mm diameter, which leads to low sediment discharge efficiency and easy accumulation inside the flywheel shell; on the other hand, since the dust removal holes are open, when the engine is working in harsh operating environments such as engineering vehicles and agricultural machinery, impurities such as ash in the external environment can easily enter the flywheel shell cavity through the dust removal holes, which is not only not conducive to the removal of sediment, but may also aggravate the pollution and wear inside the flywheel shell, posing a threat to the normal operation of the engine and transmission system. Utility Model Content

[0004] The utility model aims to provide an engine flywheel housing, which can generate airflow through the rotation of the flywheel, effectively remove sediment, and prevent impurities in the external environment from entering the flywheel housing cavity.

[0005] In order to solve the above technical problems, the utility model provides an engine flywheel housing, including a flywheel housing shell, a main shaft hole is opened in the center of the flywheel housing shell, a plurality of edge connecting holes are arranged on the edge of the flywheel housing shell, a plurality of inner connecting holes are opened on the end face of the flywheel housing shell, a slag discharge end is arranged on the lower side of the flywheel housing shell, an inclined slag hole extending into the slag discharge end and inclined to one side is opened on the lower inner wall of the flywheel housing shell, the inclination direction of each inclined slag hole is the same as the rotation direction of the flywheel, the free end of each inclined slag hole is connected with an inclined slag discharge hole extending out of the lower end of the slag discharge end and inclined in the opposite direction thereof, each inclined slag hole is connected to the corresponding inclined slag discharge hole in a V shape with the opening facing one side, and an air inlet is opened on the side wall of the flywheel housing shell.

[0006] By adopting the above technical solution, when the flywheel of the engine rotates in the flywheel housing, it drives the air to generate a rotating airflow, and sucks in outside air from the air inlet hole, and discharges it along the inclined sediment hole and the inclined sediment discharge hole. If sediment is generated due to wear, the sediment will be discharged along the inclined sediment hole and the inclined sediment discharge hole along with the airflow. Since there is always airflow blowing out from the lower end of the inclined sediment discharge hole, it can effectively prevent external dust from entering. Moreover, since the inclined sediment hole and the inclined sediment discharge hole are V-shaped, even if the flywheel does not rotate, dust can only enter the inclined sediment discharge hole, and it is difficult to enter the inclined sediment hole, thereby further preventing dust from entering.

[0007] The utility model is further configured such that one end of the air inlet hole toward the inside of the flywheel housing is inclined upward.

[0008] The utility model is further configured that the outer wall of the flywheel housing at the air inlet is provided with side wall reinforcement ribs outwardly.

[0009] The utility model is further configured that the end face of the flywheel housing shell is provided with end face reinforcement ribs.

[0010] The utility model is further configured such that the end face reinforcement ribs are in a regular or irregular spider web shape.

[0011] The utility model is further configured such that the inner connection hole is opened on the end face reinforcement rib.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Firstly, the utility model can generate airflow inside through the cooperation of the air inlet hole, the inclined sediment hole and the inclined slag discharge hole, so as to discharge the sediment in the flywheel housing through the airflow; at the same time, since the inclined sediment hole and the inclined slag discharge hole are designed in a V-shape, it is difficult for external dust to enter the interior, thereby further avoiding sediment accumulation.

[0014] Secondly, since airflow can be generated in the flywheel housing during the rotation of the flywheel, and it is not an internally circulated airflow, the heat in the flywheel housing can be brought out through the airflow, thereby playing a role in heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional view used to show the inclined slag hole, inclined slag discharge hole and air inlet hole.

[0017] Among them, 1. flywheel housing; 2. spindle hole; 3. edge connection hole; 4. end face reinforcement rib; 5. internal connection hole; 6. slag discharge end; 7. inclined slag hole; 8. inclined slag discharge hole; 9. air inlet hole; 10. side wall reinforcement rib. DETAILED DESCRIPTION

[0018] The following is a further detailed description of an engine flywheel housing proposed by the utility model in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. The same or similar reference numerals in the accompanying drawings represent the same or similar components.

[0019] Example, see Figure 1-2 An engine flywheel housing comprises a flywheel housing shell 1, a main shaft hole 2 is provided at the center of the flywheel housing shell 1, a plurality of edge connection holes 3 are provided at the edge of the flywheel housing shell 1, an end face of the flywheel housing shell 1 is provided with an end face reinforcement rib 4, the end face reinforcement rib 4 is in a regular or irregular spider web shape, in this embodiment, it is an irregular spider web shape, a plurality of inner connection holes 5 are provided on the end face reinforcement rib 4 of the end face of the flywheel housing shell 1, the strength of the flywheel housing shell 1 is enhanced by the end face reinforcement rib 4, and the inner connection holes 5 are prevented from reducing the strength of the flywheel housing shell 1. A slag discharge end 6 is provided at the lower side of the flywheel housing 1. The lower inner wall of the flywheel housing 1 is provided with a plurality of inclined slag holes 7 extending into the slag discharge end 6 and inclined to the right. The inclination direction of each inclined slag hole 7 is the same as the rotation direction of the flywheel. The free end of each inclined slag hole 7 is connected with an inclined slag discharge hole 8 extending from the lower end of the slag discharge end 6 and inclined to the left. Each inclined slag hole 7 is connected to the corresponding inclined slag discharge hole 8 in a V shape with the opening facing one side. A plurality of air inlet holes 9 are provided on the side wall of the flywheel housing 1. The air inlet holes 9 are inclined upward at one end inside the flywheel housing 1. A plurality of side wall reinforcement ribs 10 are provided outwardly on the outer wall of the flywheel housing 1 at the air inlet hole 9 to prevent the opening of the air inlet hole 9 from reducing the strength of the side wall of the flywheel housing 1.

[0020] Working principle: when the flywheel of the engine rotates in the flywheel housing 1, it drives the air to generate a rotating airflow, and sucks in the outside air from the air inlet 9, and discharges it along the inclined sediment hole 7 and the inclined slag discharge hole 8. If sediment is generated due to wear, the sediment will be discharged along the inclined sediment hole 7 and the inclined slag discharge hole 8 with the airflow. Since there is always airflow blowing out from the lower end of the inclined slag discharge hole 8, it can effectively prevent external dust from entering, and since the inclined sediment hole 7 and the inclined slag discharge hole 8 are V-shaped, even if the flywheel does not rotate, dust can only enter the inclined slag discharge hole 8, and it is difficult to enter the inclined sediment hole 7, further preventing dust from entering.

[0021] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0022] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An engine flywheel housing, comprising a flywheel housing shell (1), wherein a main shaft hole (2) is provided at the center of the flywheel housing shell (1), a plurality of edge connection holes (3) are provided at the edge of the flywheel housing shell (1), and a plurality of inner connection holes (5) are provided at the end surface of the flywheel housing shell (1), characterized in that: The flywheel housing shell (1) is provided with a slag discharge end (6) at the lower side, and the lower inner wall of the flywheel housing shell (1) is provided with an inclined slag hole (7) extending into the slag discharge end (6) and inclined to one side, the inclination direction of each inclined slag hole (7) is the same as the rotation direction of the flywheel, the free end of each inclined slag hole (7) is connected with an inclined slag discharge hole (8) extending from the lower end of the slag discharge end (6) and inclined in the opposite direction thereof, each inclined slag hole (7) is connected with the corresponding inclined slag discharge hole (8) in a V shape with the opening facing one side, and the side wall of the flywheel housing shell (1) is provided with an air inlet hole (9).

2. An engine flywheel housing according to claim 1, characterized in that: One end of the air inlet hole (9) facing the inside of the flywheel housing (1) is inclined upward.

3. An engine flywheel housing according to claim 1, characterized in that: The outer wall of the flywheel housing (1) at the air inlet (9) is provided with side wall reinforcement ribs (10) facing outwards.

4. An engine flywheel housing according to claim 1, characterized in that: The end surface of the flywheel housing (1) is provided with end surface reinforcing ribs (4).

5. An engine flywheel housing according to claim 4, characterized in that: The end face reinforcing ribs (4) are in a spider web shape.

6. An engine flywheel housing according to any one of claims 4 or 5, characterized in that: The inner connection hole (5) is opened on the end face reinforcement rib (4).

Images