Built-in silencer arrangement structure and tractor

Abstract

The utility model relates to a built-in silencer arrangement structure and a tractor, and relates to the tractor field, the built-in silencer arrangement structure comprises a silencer, an engine and a hood, the silencer is installed above the engine, and the silencer and the engine are both located in the hood. The front wheel steering silencer has the advantages that the silencer is arranged above the engine and located on the inner side of the engine cover, the scheme that the silencer is arranged in the engine cover thoroughly solves the view problem when front wheels steer, a front loading machine tool can be conveniently matched, a driver can conveniently operate the front wheel steering silencer, and the space assembly problem of the machine tool matched with a tractor is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of tractors, specifically to a built-in muffler arrangement structure and a tractor. Background Technology

[0002] For non-road agricultural tractors, the muffler or exhaust aftertreatment device that comes with the engine is usually located on the outside of the hood. When the tractor is equipped with a front loader, the installation is inconvenient. During operation, the externally located muffler will affect the driver's observation of the steering of the front tires, resulting in poor visibility.

[0003] Therefore, the installation position of the muffler needs to be adjusted to improve the tractor's layout. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to reasonably set the position of the muffler.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a built-in muffler arrangement structure, including a muffler, an engine and a hood, wherein the muffler is installed above the engine and both the muffler and the engine are located inside the hood.

[0006] The beneficial effects of this utility model are: the muffler is arranged above the engine and inside the engine hood. The solution of building the muffler inside the engine hood completely solves the problem of visibility when observing the front wheel turning, and also facilitates the matching of front loading implements, making it easier for the driver to operate and effectively solving the problem of space assembly of tractor-mounted implements.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the muffler includes a muffler heat insulation outer layer, a heat insulation layer, a muffler body, and a muffler inlet flange. The outer wall of the muffler body is provided with the heat insulation layer and the muffler heat insulation outer layer stacked from the inside to the outside. A muffler inlet is provided on one side wall of the muffler body. The muffler inlet flange is fixedly connected to and communicates with the muffler inlet.

[0009] The beneficial effects of adopting the above-mentioned further solutions are as follows: The muffler is a key component of the engine exhaust system, mainly used to reduce exhaust noise from the engine's high-temperature exhaust gases. Typically, the gas reaching the muffler inlet from the engine's exhaust port reaches 600°C. Due to the high surface temperature of the muffler during operation, the use of a heat-insulating structure can reduce the surface temperature of the muffler or exhaust aftertreatment system during operation, preventing damage to surrounding wiring harnesses, rubber parts, and other components, and also preventing fires caused by weeds entering during operation.

[0010] Furthermore, the muffler also includes an auxiliary mounting bracket, the two ends of which are fixedly connected to the lower part of the heat insulation outer layer of the muffler and the upper part of the engine, respectively.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the auxiliary mounting bracket provides support for the muffler, enabling it to be connected to the engine.

[0012] Furthermore, the heat insulation layer is made of glass fiber tape, glass fiber cotton, ceramic fiber cotton, inorganic fiber felt, or high-silica needle-punched felt.

[0013] The beneficial effects of adopting the above-mentioned further solutions are: the insulation layer has the characteristics of good insulation performance, low thermal conductivity, strong heat resistance, good corrosion resistance, and high mechanical strength. It can withstand temperatures of 600℃~700℃ on non-road agricultural machinery and has good heat insulation performance.

[0014] Furthermore, the muffler body is a cylindrical, elliptical, or prismatic tube.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the shape of the muffler body can be flexibly selected according to the spatial layout inside the hood, so as to adapt to the relatively compact internal space of the hood.

[0016] Furthermore, the built-in muffler arrangement structure also includes a turbocharger and a turbocharger exhaust outlet assembly, wherein the exhaust port of the turbocharger is connected to the muffler through the turbocharger exhaust outlet assembly.

[0017] Furthermore, the built-in muffler arrangement structure also includes a sealing gasket and a ring clamp. The sealing gasket is sandwiched between the end face of the turbocharger exhaust outlet assembly and the end face of the muffler, and the turbocharger exhaust outlet assembly and the muffler are connected by the ring clamp.

[0018] The advantages of adopting the above-mentioned further solution are: the muffler inlet flange is matched with the exhaust outlet of the turbocharger exhaust outlet assembly, and the two are sealed by a gasket. The turbocharger exhaust outlet assembly and the muffler are fastened with a ring clamp, which compresses the gasket, improving the sealing effect and making assembly quick and convenient.

[0019] Furthermore, the ring clamp is a V-groove clamp.

[0020] Furthermore, the sealing gasket is made of metal.

[0021] This utility model also provides a tractor, including the aforementioned built-in muffler arrangement structure. Attached Figure Description

[0022] Figure 1 This is a front view of a built-in muffler arrangement structure according to the present invention;

[0023] Figure 2 This utility model Figure 1 A partial enlarged view of point A in a built-in muffler arrangement structure;

[0024] Figure 3 This is a three-dimensional view of the connection structure between the muffler and the turbocharger exhaust outlet assembly of this utility model;

[0025] Figure 4 This is a partial cross-sectional view of the muffler of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Muffler; 101. Muffler outer insulation layer; 102. Insulation layer; 103. Muffler body; 104. Muffler inlet flange; 2. Ring clamp; 3. Sealing gasket; 4. Turbocharger exhaust outlet assembly; 5. Engine. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0029] like Figures 1-4 As shown, this embodiment provides a built-in muffler arrangement structure, including a muffler 1, an engine 5, and a hood. The muffler 1 is installed above the engine 5, and both the muffler 1 and the engine 5 are located inside the hood.

[0030] The muffler 1 is located above the engine 5, inside the engine hood. The solution of installing the muffler 1 inside the engine hood completely solves the problem of visibility when observing the front wheel turning, and also facilitates the matching of front loading implements, making it easier for the driver to operate and effectively solving the problem of space assembly of tractor-mounted implements.

[0031] Based on the above technical solution, the muffler 1 includes a muffler heat insulation outer layer 101, a heat insulation layer 102, a muffler body 103, and a muffler inlet flange 104. The outer wall of the muffler body 103 is provided with the heat insulation layer 102 and the muffler heat insulation outer layer 101 stacked from the inside to the outside. A muffler inlet is provided on one side wall of the muffler body 103. The muffler inlet flange 104 is fixedly connected to and communicates with the muffler inlet.

[0032] The muffler 1 is a key component of the engine exhaust system, mainly used to reduce exhaust noise from the high-temperature exhaust gas discharged from the engine 5. Typically, the gas reaching the inlet of the muffler 1 from the exhaust port of the engine 5 reaches 600°C. Due to the high surface temperature of the muffler 1 during operation, a heat-insulating structure is adopted to reduce the surface temperature of the muffler or exhaust aftertreatment system during operation, preventing damage to surrounding wiring harnesses, rubber parts, and other components, and also preventing weeds from entering during operation and causing a fire.

[0033] Optionally, the muffler's heat-insulating outer layer 101 may be made of a metallic material.

[0034] Air enters through the muffler inlet of the muffler body 103, passes through the internal muffler cavity, and is finally discharged through the muffler outlet, allowing the engine exhaust airflow to pass smoothly and reducing airflow noise.

[0035] Based on the above technical solution, the muffler 1 also includes an auxiliary mounting bracket, the two ends of which are fixedly connected to the lower part of the muffler heat insulation outer layer 101 and the upper part of the engine 5, respectively.

[0036] The auxiliary mounting bracket provides support for the muffler 1, enabling it to connect to the engine 5.

[0037] Based on the above technical solution, the heat insulation layer 102 is made of glass fiber tape, glass fiber cotton, ceramic fiber cotton, inorganic fiber felt or high silica needle-punched felt.

[0038] The insulation layer 102 has the characteristics of good insulation performance, low thermal conductivity, strong heat resistance, good corrosion resistance and high mechanical strength. It can withstand temperatures of 600℃~700℃ on non-road agricultural machinery and has good heat insulation performance.

[0039] Specifically, the insulation layer 102 will have different insulation temperatures depending on its material and thickness. The material of the insulation layer 102 is existing technology. When selecting insulation materials, the temperature requirements of the entire machine's operating conditions are the primary consideration. As long as the material can meet the insulation requirements within the temperature range of the entire machine's operating conditions, it is acceptable. Typically, the muffler 1 requires a temperature range of -40℃ to 700℃.

[0040] Based on the above technical solution, the muffler body 103 is a cylindrical, elliptical, or prismatic cylinder.

[0041] The shape of the muffler body 103 can be flexibly selected according to the spatial layout inside the hood to adapt to the relatively compact internal space of the hood.

[0042] Based on the above technical solution, the built-in muffler arrangement structure also includes a turbocharger and a turbocharger exhaust outlet assembly 4, wherein the exhaust port of the turbocharger is connected to the muffler 1 through the turbocharger exhaust outlet assembly 4.

[0043] Specifically, the muffler inlet flange 104 is connected to the turbocharger exhaust outlet assembly 4.

[0044] The turbocharger exhaust outlet assembly 4 is a pipe with connecting discs at both ends. One end is connected to the exhaust port of the turbocharger, and the other end is connected to the muffler inlet flange 104. The muffler inlet flange 104 can be a welded part or a casting part.

[0045] Based on the above technical solution, the built-in muffler arrangement structure also includes a sealing gasket 3 and a ring 2. The sealing gasket 3 is sandwiched between the end face of the turbocharger exhaust outlet assembly 4 and the end face of the muffler 1. The turbocharger exhaust outlet assembly 4 and the muffler 1 are connected by the ring 2.

[0046] Existing silencers and turbochargers are usually fixed with bolts. To facilitate bolt installation, a large operating space needs to be reserved, which is not conducive to the installation of silencer 1 in a compact hood.

[0047] In this design, the muffler inlet flange 104 of the muffler 1 is fitted with the exhaust outlet of the turbocharger exhaust outlet assembly 4, and the two are sealed together by a sealing gasket 3. The turbocharger exhaust outlet assembly 4 and the muffler 1 are fastened together using a ring clamp 2, which presses the sealing gasket 3 to improve the sealing effect and facilitates quick and convenient assembly. Furthermore, the absence of bolts effectively solves the problem of the close proximity between the muffler inlet flange 104 and the turbocharger exhaust outlet, making bolt installation impossible. This also effectively increases the design space of the muffler body 103, thereby improving the performance of the muffler 1.

[0048] Based on the above technical solution, the ring clamp 2 is a V-groove clamp.

[0049] Correspondingly, such as Figure 2 As shown, the connecting discs at the other end of the muffler inlet flange 104 and the turbocharger exhaust outlet assembly 4 are both annular rings with trapezoidal cross sections. After the two trapezoidal rings are joined together, they form a structure that matches the shape of the V-groove inside the V-groove clamp.

[0050] Based on the above technical solution, the sealing gasket 3 is made of metal.

[0051] This embodiment also provides a tractor, including the aforementioned built-in muffler arrangement structure.

[0052] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An in-line muffler arrangement, characterized in that The muffler (1), the engine (5) and the hood are included, the muffler (1) is installed above the engine (5), and the muffler (1) and the engine (5) are located in the hood; the muffler (1) includes a muffler heat insulation outer layer (101), a heat insulation layer (102), a muffler body (103) and a muffler inlet flange (104), the outer wall of the muffler body (103) is stacked from inside to outside with the heat insulation layer (102) and the muffler heat insulation outer layer (101), one of the side walls of the muffler body (103) is provided with a muffler inlet, and the muffler inlet flange (104) is fixedly connected with the muffler inlet and communicates with the muffler inlet.

2. An arrangement according to claim 1, c h a r a c t e r i s e d in that The muffler (1) further includes an auxiliary mounting bracket, and two ends of the auxiliary mounting bracket are fixedly connected with the lower part of the muffler heat insulation outer layer (101) and the upper part of the engine (5) respectively.

3. An arrangement according to claim 1, c h a r a c t e r i s e d in that The heat insulation layer (102) is glass fiber tape, glass fiber cotton, ceramic fiber cotton, inorganic fiber felt or high-silicon oxygen needle felt.

4. An arrangement according to claim 1, c h a r a c t e r i s e d in that The muffler body (103) is a cylindrical, elliptical cylindrical or prismatic cylinder.

5. An arrangement according to any one of claims 1-4, c h a r a c t e r i s e d i n that The booster and a booster exhaust outlet assembly (4) are further included, and the exhaust port of the booster is connected with the muffler (1) through the booster exhaust outlet assembly (4).

6. An arrangement according to claim 5, c h a r a c t e r i s e d in that The sealing gasket (3) and the ring hoop (2) are further included, the sealing gasket (3) is arranged between the end face of the booster exhaust outlet assembly (4) and the end face of the muffler (1), and the booster exhaust outlet assembly (4) and the muffler (1) are connected through the ring hoop (2).

7. An arrangement according to claim 6, c h a r a c t e r i s e d in that The ring hoop (2) is a V-shaped groove clamp.

8. An arrangement according to claim 6, c h a r a c t e r i s e d i n that The material of the sealing gasket (3) is metal.

9. A tractor characterised in that, The built-in muffler arrangement structure is included. The built-in muffler arrangement structure is included.

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