CN210364073U - Engine cover and working machine - Google Patents
Engine cover and working machine Download PDFInfo
- Publication number
- CN210364073U CN210364073U CN201921066680.1U CN201921066680U CN210364073U CN 210364073 U CN210364073 U CN 210364073U CN 201921066680 U CN201921066680 U CN 201921066680U CN 210364073 U CN210364073 U CN 210364073U
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- hood
- ventilative
- engine
- ventilation
- cover
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Abstract
The utility model relates to an engine bonnet and operation machinery, for solving the inside not smooth problem that leads to the temperature on the high side and outside debris, rainwater to get into the engine bonnet easily with outside ventilation of current engine bonnet, the utility model discloses construct an engine bonnet, including the top cap, its characterized in that be provided with ventilative region on the top cap, be equipped with ventilative mesh at ventilative region, fixed mounting has the apron on the top cap, the apron is located ventilative region's top and the projection of apron on the top cap covers ventilative region has the ventilative clearance that supplies ventilative mesh outside to ventilate between apron and top cap. The utility model discloses in, be provided with ventilative mesh on the hood top cover, the hot-air in the engine compartment rises and outwards gives off from ventilative mesh, strengthens the heat dissipation in engine compartment to avoid engine compartment high temperature. Due to the cover plate, external sundries and rainwater are not easy to enter the interior of the engine cover, and parts in the engine room are protected from being damaged.
Description
Technical Field
The present invention relates to a working machine, and more particularly to an engine cover and a working machine.
Background
The engine hood is arranged in an engine compartment formed by the engine hood, and the engine hood protects the engine in the engine compartment and simultaneously prevents noise generated by the engine from leaking outwards so as to reduce the noise radiation of the whole machine.
The heat generated by the engine during operation is mainly dissipated outwards by a heat dissipation system of the machine, and holes for connecting an engine compartment with the outside are rarely arranged on an engine cover. Although the heat generated by the engine is mainly dissipated by the radiator, the engine itself radiates heat during operation, and the temperature of the engine compartment is still high because the engine compartment is less exchanged with the outside air flow.
But with the upgrading of non-road engine emissions, particularly non-road state four emissions. The work machines are equipped with aftertreatment components to treat engine exhaust, which are typically housed in the engine compartment, and sensors on the aftertreatment components severely limit the ambient temperature and cannot exceed its specified temperature. This requires that the engine compartment has a good heat dissipation function to avoid excessive temperatures in the engine compartment.
However, the temperature of the inside (engine compartment) of the existing hood is higher than the limit value of the sensor on the aftertreatment component to the temperature, because the ventilation between the inside and the outside of the existing hood is not smooth, especially the temperature of the top of the engine compartment is higher.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the inside not smooth problem that leads to the temperature on the high side easily with outside ventilation of current engine bonnet, and provide an engine bonnet and operation machinery, improve the inside and outside ventilation situation of engine bonnet, avoid the inside high temperature of engine bonnet.
The utility model discloses a realize that the technical scheme of its purpose is like: the engine hood comprises a top cover and is characterized in that a ventilation area is arranged on the top cover, ventilation meshes are arranged in the ventilation area, a cover plate is fixedly mounted on the top cover, the cover plate is located above the ventilation area, the projection of the cover plate on the top cover covers the ventilation area, and a ventilation gap for the ventilation meshes to ventilate outwards is formed between the cover plate and the top cover. The utility model discloses in, be provided with ventilative mesh on the hood top cover, the hot-air in the engine compartment rises and outwards gives off from ventilative mesh, strengthens the heat dissipation in engine compartment to avoid engine compartment high temperature, because the existence of apron, inside outside debris, rainwater are difficult to get into the engine hood, inside the spare part of protection cabin not damaged.
Further, in the engine cover, a surface of the ventilation area where the ventilation mesh is located protrudes from a height of an area around the ventilation area on the top cover, and a height difference between the height of the surface of the ventilation mesh and the height of the area around the ventilation area on the top cover is greater than 5 mm. This can avoid rainwater to enter into the engine compartment through ventilative mesh.
Further, in the above-mentioned engine hood, the engine hood is composed of a skin, a skeleton, and sound-absorbing cotton attached to the inner side of the skin, wherein the skin of the engine hood may be made of a metal plate, or a non-metal material, or an integral structure, or may be formed by splicing a plurality of plates, that is, the top cover of the engine hood may be an independent plate, and the plate and other plates form the skin of the engine hood, or the top cover of the engine hood and the skins at other positions of the engine hood are integrally formed. The ventilating area and the area around the ventilating area on the top cover can be of an integral structure, namely when the top cover of the engine hood is formed by stamping or molding, the ventilating area with the height higher than that of other areas is formed on the top cover at the same time, and the ventilating area is provided with ventilating meshes. Or the ventilating area is formed by a part independent of the top cover, namely a ventilating plate, the ventilating mesh is arranged on the ventilating plate, the peripheral edge of the ventilating plate is bent downwards, the top cover is provided with ventilating holes with larger size in the mounting area of the ventilating plate, the ventilating plate is fixed on the top cover, the ventilating holes in the top cover are covered, and the edge of the ventilating plate bent downwards is in sealing connection with the top cover, so that rainwater is prevented from flowing into the engine compartment from a gap between the ventilating plate and the top cover.
Further, in the engine cover, the peripheral edge of the cover plate has a bent edge bent downward.
Further, in the engine hood, a plurality of supports are fixedly mounted on the top cover in a projection coverage area of the cover plate on the top cover, the top ends of the supports are higher than the surface where the breathable meshes are located, and the top ends of the supports are in contact with the bottom surface of the cover plate and are fixedly connected with the cover plate through bolts. Or the cover plate is provided with a plurality of support legs extending downwards, and the tail ends (lower ends) of the support legs are fixedly connected with the top cover.
Further, in the engine cover, sound absorbing cotton is provided on the bottom surface of the cover plate. The sound-absorbing cotton on the bottom surface of the cover plate is beneficial to reducing the noise radiated by the breathable meshes.
The utility model discloses a realize that the technical scheme of its purpose is like: there is provided a working machine having the hood described above.
Compared with the prior art, the utility model, set up the ventilation mesh on the top cap at engine bonnet top, make the hot-air in the engine compartment can be favorable to reducing the temperature in the engine compartment through the outside loss of ventilation mesh, avoid the engine compartment in temperature to exceed the required ambient temperature limit value of certain sensor.
Drawings
Fig. 1 is a schematic structural view of the top of the engine cover of the present invention.
Fig. 2 is a sectional view of the engine cover top structure of the present invention.
Fig. 3 is a front view of the engine cover top structure of the present invention.
Fig. 4 is a top view of the engine cover top structure of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
Fig. 1-4 illustrate a schematic configuration of the top of a hood for a work machine, such as a loader, grader, dozer, excavator, or the like. Only a partial structure at the hood top is shown in the drawing.
The engine cover is generally made of materials such as a skin, a framework and sound absorption cotton attached to the inner side of the skin, wherein the skin can be made by stamping a metal plate or by molding a non-metal material; meanwhile, the skin can be of an integral structure or formed by splicing a plurality of plates.
Fig. 1 to 4 show the structure of the hood canopy, the canopy includes a top cover plate 1, the top cover plate 1 forms a ventilation area with a height higher than other areas on the top cover plate 1 when stamping or molding, the ventilation area is provided with ventilation meshes 2, the surface of the ventilation area where the ventilation meshes 2 are located protrudes the height of the area around the ventilation area on the top cover plate 1, the height of the protrusion is usually more than 5 mm, so as to prevent rainwater on the top cover plate 1 from entering the engine compartment below the top cover plate through the ventilation meshes 2.
The ventilation area is square, and can be designed into other shapes such as a circle or a regular polygon in specific implementation. A cover plate 4 is fixed on the top cover plate 1, the cover plate 4 is square and fixed above the ventilation area, and the projection of the cover plate 4 on the top cover plate 1 covers the ventilation area. The peripheral edge of the cover plate 4 has a bent edge 41 bent downward.
Four supports 3 are installed in the arrangement area of the air-permeable meshes 2, and the top end of each support 3 is in contact with the bottom surface of the cover plate 4 and is fixedly connected with the top cover through bolts 5.
In this embodiment, the bottom surface of the cover plate 4 may be further provided with sound-absorbing cotton, and the sound-absorbing cotton arranged on the bottom surface of the cover plate 4 is beneficial to reducing noise radiated through the air-permeable meshes.
In the present embodiment, the top cover plate 1 is an integral structure, the top cover plate 1 includes a ventilation area and a surrounding area, and the ventilation area and the surrounding area are integrally formed, when the hood top cover plate 1 is formed by stamping or molding, a ventilation area higher than the other areas is formed on the top cover plate 1, and the ventilation area is provided with the ventilation mesh 2. In particular, two separate parts may be provided, namely, the hood top is composed of two parts, namely, the top cover plate and the ventilation plate. Wherein the ventilation plate is provided with ventilation meshes, the edges of the periphery of the ventilation plate are bent downwards, the top cover plate is provided with ventilation holes with larger size in the installation area of the ventilation plate, and the ventilation holes of the ventilation plate, which are fixed on the top cover, are covered by the top cover and the edges of the ventilation plate, which are bent downwards, are hermetically connected with the top cover.
The utility model discloses in, set up the ventilation mesh on the top cap at engine bonnet top, make the hot-air in the engine compartment can be favorable to reducing the temperature in the engine compartment through the outside loss of ventilation mesh, avoid the engine compartment in the temperature to exceed the required ambient temperature limit value of certain sensor.
Claims (10)
1. The utility model provides an engine hood, includes the top cap, its characterized in that be provided with ventilative region on the top cap, be equipped with ventilative mesh in ventilative region, fixed mounting has the apron on the top cap, the apron is located ventilative region's top and the projection of apron on the top cap covers ventilative region has the ventilative clearance that supplies ventilative mesh to ventilate outward between apron and top cap.
2. The hood according to claim 1 wherein the face of the breathable mesh of the breathable zone protrudes from the plane of the area surrounding the breathable zone of the top cover.
3. The hood according to claim 2 wherein the breathable zone is of unitary construction with the area of the hood surrounding the breathable zone.
4. The hood according to claim 2 wherein the ventilation area is formed by a ventilation plate having a peripheral edge bent downward, the ventilation plate being fixed to the hood and having a downward bent edge hermetically connected to the hood, the hood being provided with ventilation holes at positions covered by the ventilation plate.
5. The hood according to any one of claims 2 to 4 wherein the difference in height between the face of the breathable mesh and the area around the breathable zone on the hood is greater than 5 mm.
6. The hood according to any one of claims 1 to 4 wherein the peripheral edge of the cover panel has a bent edge bent downward.
7. The engine cover according to claim 6, characterized in that the top cover is fixedly provided with a plurality of supports in a projection coverage area of the cover plate on the top cover, the top end of each support is higher than the height of the surface where the breathable mesh holes are positioned, and the top end of each support is in contact with the bottom surface of the cover plate and is fixedly connected with the cover plate through bolts.
8. A hood according to claim 6, characterized in that the cover plate is provided with a plurality of downwardly extending legs, the distal ends of which are fixedly connected to the bonnet.
9. The hood according to claim 6 wherein the bottom surface of the cover plate is provided with sound absorbing cotton.
10. A working machine, characterized in that it has a hood according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921066680.1U CN210364073U (en) | 2019-07-10 | 2019-07-10 | Engine cover and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921066680.1U CN210364073U (en) | 2019-07-10 | 2019-07-10 | Engine cover and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210364073U true CN210364073U (en) | 2020-04-21 |
Family
ID=70270188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921066680.1U Active CN210364073U (en) | 2019-07-10 | 2019-07-10 | Engine cover and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210364073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894072A (en) * | 2020-08-28 | 2020-11-06 | 徐工集团工程机械股份有限公司科技分公司 | Hood structure for small-sized loader |
| CN115009377A (en) * | 2022-07-11 | 2022-09-06 | 安徽宸曜汽车科技有限公司 | Lightweight automobile cover |
-
2019
- 2019-07-10 CN CN201921066680.1U patent/CN210364073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894072A (en) * | 2020-08-28 | 2020-11-06 | 徐工集团工程机械股份有限公司科技分公司 | Hood structure for small-sized loader |
| CN115009377A (en) * | 2022-07-11 | 2022-09-06 | 安徽宸曜汽车科技有限公司 | Lightweight automobile cover |
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