Cast aluminum flywheel casing

Abstract

The utility model provides a cast aluminum 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 installation holes are formed in the edge of the flywheel shell body, a plurality of inner connection holes are formed in the end face of the flywheel shell body, and a plurality of hollow heat dissipation strips arranged in the length direction of the flywheel shell body are arranged on the outer wall of the flywheel shell body. Each hollow heat dissipation strip is communicated with the interior of the flywheel shell body, outer heat dissipation fins are arranged on the two sides outside each hollow heat dissipation strip outwards, the inner wall of the lower portion of the flywheel shell body is concave outwards to form a slag collecting groove, an opening is formed in the outward end of the slag collecting groove, and a V-shaped guide plate with an outward opening is arranged in the slag collecting groove. The open end of the slag collecting groove is detachably connected with a slag collecting cover, and a plurality of slag collecting magnetic strips are arranged on the side, in the slag collecting groove, of the slag collecting cover. By optimizing the design structure of the flywheel shell, the flywheel shell has the bottom slag collecting capacity, and meanwhile the novel heat dissipation structure design enables the flywheel shell to have the more efficient heat dissipation capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine parts technical field relates to a cast aluminum flywheel housing. BACKGROUND

[0002] In modern internal combustion engine systems, the flywheel is one of the most critical components, not only bearing the key functions of storing energy, smoothing power output, and assisting in starting, but also playing an irreplaceable role in improving the overall performance and efficiency of the engine. Traditionally, flywheels and their housings are mostly made of cast iron materials to meet the requirements of high strength and high wear resistance. However, with the increasing demand for engine lightweight and fuel economy, cast aluminum materials have gradually been applied to the manufacturing of flywheel housings due to their significant weight advantage, good processing performance, and excellent thermal conductivity.

[0003] Although cast aluminum flywheel housings have shown great potential in reducing the overall weight of the engine and improving fuel efficiency, they have also exposed some problems that need to be solved in actual application. Especially under long-term running conditions, due to the continuous friction between the flywheel and the clutch or other transmission components, a certain amount of metal chips and other impurities (i.e. sediment) will be generated. If these sediments cannot be effectively discharged in time, they will accumulate at the rear end of the flywheel housing, forming a potential risk point. First, these deposits may cause abnormal noise between mechanical components, affecting driving comfort; second, they may also interfere with the normal rotation of the flywheel, thereby affecting the stability and efficiency of the entire power transmission system, and in severe cases, may even cause equipment failure.

[0004] In addition, the existing flywheel housing design mainly relies on the outer wall of the housing for natural heat dissipation, which is simple and direct, but it is not enough when facing the large amount of heat generated by modern high-power density engines. Although cast aluminum materials have good thermal conductivity, due to the lack of effective heat dissipation mechanism, the heat accumulated inside the flywheel housing is difficult to dissipate quickly, which not only limits its heat dissipation effect, but also may cause the engine temperature to be too high, thereby affecting the working efficiency and service life of the engine. SUMMARY

[0005] The utility model aims at providing a kind of cast aluminum flywheel housing, the design structure of flywheel housing is optimized, so that flywheel housing has the ability of bottom slag collection, and new heat dissipation structure design makes it have more efficient heat dissipation capacity, which can significantly improve the application effect of existing cast aluminum flywheel housing.

[0006] The utility model provides a cast aluminum flywheel shell, including flywheel shell casing, the flywheel shell casing center is equipped with the main shaft hole, the edge of flywheel shell casing is provided with a plurality of edge mounting hole, the end surface of flywheel shell casing is equipped with a plurality of inner connecting hole, the outer wall of flywheel shell casing is provided with a plurality of hollow heat dissipation strips along its length direction setting, every hollow heat dissipation strip all with the inside communication of flywheel shell casing, the both sides of every hollow heat dissipation strip outside all outwardly provided with outer heat dissipation fin, the inner wall of the lower of flywheel shell casing is outwardly concave and forms the slag collecting groove, the opening of slag collecting groove is outward, be provided with the V type guide plate of opening outward in the slag collecting groove, the both ends of V type guide plate outward all leave the clearance between the inner wall of slag collecting groove, the opening end of slag collecting groove is detachably connected with the slag collecting cover, and one side of the slag collecting cover in the slag collecting groove is provided with a plurality of gather slag magnetic strips.

[0007] Through adopting the above technical scheme, when the flywheel rotates in the flywheel shell casing, air flow is generated in the flywheel shell casing, heat is transferred to the hollow heat dissipation strips, the hollow heat dissipation strips protrude outward, and the outer heat dissipation fins on the outer side further increase the heat dissipation area, so that the heat in the flywheel shell casing is fully dissipated outward.

[0008] When the flywheel shell casing generates sediment, the sediment falls downward on the V type guide plate, enters the bottom of the slag collecting groove through the both ends of the V type guide plate, and the sediment is not easy to enter the flywheel shell casing again through the block of the V type guide plate, and the metal scraps in the sediment are adsorbed by the gather slag magnetic strips on the slag collecting cover. When regular maintenance and cleaning are performed, the slag collecting cover is removed, and the sediment on the slag collecting cover can be cleaned.

[0009] The utility model further sets up, the outer wall of slag collecting groove is provided with a plurality of screw holes to the flywheel shell casing inside setting, the slag collecting cover is equipped with a plurality of connecting hole with the screw hole one to one correspondence, the slag collecting cover with the slag collecting groove is connected through a plurality of connecting bolts with the screw hole and the connecting hole cooperation.

[0010] The utility model further sets up, and the slag collecting cover is provided with annular rubber pad with the slag collecting groove opening end cooperation on one side of the gather slag magnetic strip.

[0011] The utility model further sets up, and the end surface of flywheel shell casing is provided with end surface reinforcing rib.

[0012] The utility model further sets up, and the end surface reinforcing rib is spider web shape.

[0013] The utility model further sets up, and the inner connecting hole is equipped on the end surface reinforcing rib.

[0014] The flywheel shell body is provided with a plurality of inner heat dissipation fins arranged along the length direction of the inner wall of the flywheel shell body.

[0015] Compared with the prior art, the flywheel shell has the following beneficial effects:

[0016] Firstly, after the sediment is generated in the flywheel shell body, the sediment gradually passes through the V-shaped guide plate into the sediment collecting groove, and the sediment in the sediment collecting groove is prevented from entering the flywheel shell body again by the blockage of the V-shaped guide plate and the magnetic attraction of the sediment collecting magnetic strip, so that the normal rotation of the flywheel is not disturbed.

[0017] Secondly, the heat in the flywheel shell body is transferred to the inner heat dissipation fins and the hollow heat dissipation strips, the heat absorbed by the inner heat dissipation fins is directly dissipated through the outer wall of the flywheel shell body, the hollow heat dissipation strips protrude outward, and the outer heat dissipation fins on the outer side further increase the heat dissipation area, so that the flywheel shell has higher heat dissipation capacity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0019] Fig. 2 is an explosion diagram for showing the connection of the sediment collecting cover and the sediment collecting groove;

[0020] Fig. 3 is used to show the annular rubber pad and the sediment collecting magnetic strip on the sediment collecting cover.

[0021] 1, flywheel shell body; 2, main shaft hole; 3, edge mounting hole; 4, end face reinforcing rib; 5, inner connecting hole; 6, hollow heat dissipation strip; 7, outer heat dissipation fin; 8, inner heat dissipation fin; 9, sediment collecting groove; 10, V-shaped guide plate; 11, sediment collecting cover; 12, threaded hole; 13, connecting hole; 14, connecting bolt; 15, annular rubber pad; 16, sediment collecting magnetic strip. DETAILED DESCRIPTION

[0022] The utility model discloses a cast aluminum flywheel shell which is further described in detail below in combination with the drawings and specific embodiments. According to the following description, the advantages and characteristics of the utility model will be more apparent. It should be noted that the drawings are all very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting the description of the embodiments of the utility model. The same or similar reference signs in the drawings represent the same or similar parts.

[0023] Embodiment, refer to Figs. 1-3The application relates to a cast aluminum flywheel shell, which comprises a flywheel shell body 1, a main shaft hole 2 is arranged in the center of the flywheel shell body 1, a plurality of edge mounting holes 3 are arranged on the edge of the flywheel shell body 1, a plurality of end face reinforcing ribs 4 are arranged on the end face of the flywheel shell body 1, a plurality of inner connecting holes 5 are arranged on the end face of the flywheel shell body 1, the end face reinforcing ribs 4 are in the shape of a spider web, and the inner connecting holes 5 are arranged on the end face reinforcing ribs 4. A plurality of hollow heat dissipation strips 6 are arranged on the outer wall of the flywheel shell body 1 along the length direction of the flywheel shell body 1, each of the hollow heat dissipation strips 6 is communicated with the inside of the flywheel shell body 1, and each of the hollow heat dissipation strips 6 is outwardly provided with an outer heat dissipation fin 7 on both sides, a plurality of inner heat dissipation fins 8 are arranged on the inner wall of the flywheel shell body 1 along the length direction of the flywheel shell body 1, and the inner heat dissipation fins 8 are alternately distributed with the hollow heat dissipation strips 6.

[0024] The inner wall of the lower part of the flywheel shell body 1 is outwardly concave to form a slag collecting groove 9, the outward end of the slag collecting groove 9 is open, an outward V-shaped guide plate 10 is arranged in the slag collecting groove 9, and gaps are left between the outward ends of the V-shaped guide plate 10 and the inner wall of the slag collecting groove 9, so that the sediment can enter the bottom of the slag collecting groove 9 through the two ends of the V-shaped guide plate 10, and the sediment is difficult to enter the flywheel shell body 1 again through the block of the V-shaped guide plate 10, the open end of the slag collecting groove 9 is detachably connected with a slag collecting cover 11, the outer wall of the slag collecting groove 9 is provided with two screw holes 12 arranged in the flywheel shell body 1, the slag collecting cover 11 is provided with two connecting holes 13 corresponding to the screw holes 12, the slag collecting cover 11 is connected with the slag collecting groove 9 through two connecting bolts 14 matched with the screw holes 12 and the connecting holes 13, the slag collecting cover 11 is provided with a ring-shaped rubber pad 15 matched with the open end of the slag collecting groove 9 on one side of the slag collecting cover 11, and a plurality of slag collecting magnetic strips 16 are arranged on one side of the slag collecting cover 11 in the slag collecting groove 9, so that the metal scraps can be effectively adsorbed through the slag collecting magnetic strips 16, and the metal scraps are further prevented from entering the flywheel shell body 1.

[0025] Working principle: when the flywheel rotates in the flywheel shell body 1, air flow is generated in the flywheel shell body 1, heat is transferred to the inner heat dissipation fins 8 and the hollow heat dissipation strips 6, the heat absorbed by the inner heat dissipation fins 8 is directly dissipated through the outer wall of the flywheel shell body 1, the hollow heat dissipation strips 6 protrude outward, and the outer heat dissipation fins 7 on the outer side further increase the heat dissipation area, so that the heat in the flywheel shell body 1 is fully dissipated outward.

[0026] When the sediment is generated in the flywheel shell body 1, the sediment falls downward on the V-shaped guide plate 10, and then enters the bottom of the slag collecting groove 9 through the two ends of the V-shaped guide plate 10, so that the sediment is difficult to enter the flywheel shell body 1 again through the block of the V-shaped guide plate 10, and the metal scraps in the sediment are adsorbed by the slag collecting magnetic strips 16 on the slag collecting cover 11, when the flywheel shell body 1 is regularly maintained and cleaned, the slag collecting cover 11 is removed, and the sediment on the slag collecting cover 11 can be cleaned.

[0027] It should be further explained that all the "arranged" and similar descriptions in the present application (especially the specification) express that there is a connection between two structures, but the specific connection means is not limited too much, and is usually a conventional connection means, that is, it should be understood that the means is prior art, and does not need to be described too much. For example, "m is arranged with n", only expresses that there is n structure on m structure, and the specific connection between the two is through welding, riveting, adhesive connection or one-piece forming, which is within the protection scope of the present application. For example, "x is arranged with y", only expresses that y and x can rotate relative to each other, and as for whether the two are connected through a bearing to rotate, or y directly penetrates x to rotate with x, or other realizable modes, which are within the protection scope of the present application.

[0028] The above description is only a description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any modification and modification of the above disclosure by a person skilled in the art is within the protection scope of the claims.

Claims

1. A cast aluminum flywheel housing, comprising a flywheel housing shell (1), a main shaft hole (2) is formed in the center of the flywheel housing shell (1), a plurality of edge mounting holes (3) are arranged on the edge of the flywheel housing shell (1), a plurality of inner connecting holes (5) are formed on the end face of the flywheel housing shell (1), characterized in that, The outer wall of the flywheel shell shell body (1) is provided with a plurality of hollow heat dissipation strips (6) arranged along the length direction thereof, each hollow heat dissipation strip (6) is in communication with the inside of the flywheel shell shell body (1), the outer two sides of each hollow heat dissipation strip (6) are provided with outer heat dissipation fins (7) outward, the inner wall of the lower part of the flywheel shell shell body (1) is outwardly concave to form a slag collecting groove (9), the outward end of the slag collecting groove (9) is open, the slag collecting groove (9) is provided with a V-shaped guide plate (10) with an outward opening, the outward two ends of the V-shaped guide plate (10) and the inner wall of the slag collecting groove (9) are both left with gaps, the opening end of the slag collecting groove (9) is detachably connected with a slag collecting cover (11), one side of the slag collecting cover (11) in the slag collecting groove (9) is provided with a plurality of slag collecting magnetic strips (16).

2. An aluminum flywheel housing as set forth in claim 1 wherein, The outer wall of the slag collecting groove (9) is provided with a plurality of threaded holes (12) arranged inside the flywheel shell shell body (1), the slag collecting cover (11) is provided with a plurality of connecting holes (13) corresponding to the threaded holes (12), and the slag collecting cover (11) and the slag collecting groove (9) are connected through a plurality of connecting bolts (14) matched with the threaded holes (12) and the connecting holes (13).

3. An aluminum flywheel housing as defined in claim 2 wherein, The slag collecting cover (11) is provided with an annular rubber pad (15) matched with the opening end of the slag collecting groove (9) on one side of the slag collecting magnetic strip (16).

4. The cast aluminum flywheel housing of claim 1 wherein, The end face of the flywheel shell shell body (1) is provided with an end face reinforcing rib (4).

5. An aluminum flywheel housing as defined in claim 4 wherein, The end face reinforcing rib (4) is in the shape of a spider web.

6. An aluminium flywheel housing according to any one of claims 4 or 5, characterised in that, The inner connecting hole (5) is arranged on the end face reinforcing rib (4).

7. The cast aluminum flywheel housing of claim 1 wherein, The inner wall of the flywheel shell shell body (1) is provided with a plurality of inner heat dissipation fins (8) arranged along the length direction thereof.

Images