Large-tonnage loader assembled with noise reduction and heat insulation cabin

Abstract

The large-tonnage loader is characterized in that a noise reduction and heat insulation plate assembly is arranged in a cabin and between an engine and a radiator, the noise reduction and heat insulation plate assembly comprises a sound insulation and heat insulation sponge partition plate and a partition plate support, and an independent S area space is formed between the noise reduction and heat insulation plate assembly and the radiator; an engine is arranged in an independent cabin through an independent S area space, heat radiation of high-temperature objects such as a silencer of an engine body and cold air entering the cabin from the outside of the cabin are isolated through a noise reduction and heat insulation plate assembly, and sound insulation and heat insulation sponge is installed on the face, corresponding to the engine, of the noise reduction and heat insulation plate assembly. The temperature difference between a high-temperature medium in the radiator and cold air is increased, the radiating performance of the radiator is improved, and the occurrence probability of high-temperature alarm shutdown faults is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of engine compartments of large-tonnage loaders, in particular to a noise-reducing and heat-insulating compartment of large-tonnage loaders. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] The engine and radiator of the existing large-tonnage loader are assembled together in a completely through-going engine room. The temperature of the engine body, supercharger, muffler and other objects in the working state will continue to rise.

[0004] On the one hand, the "cold air" entering the cabin from the heat dissipation air inlet will change from "cold air" to "warm air" under the influence of the heat radiation of the high-temperature object. At this time, while the "cold air" outside the cabin is sucked into the cabin, the "warm air" inside the cabin will also be blown out from the heat dissipation air inlet to the outside of the cabin, forming wind field disturbance and turbulence at the heat dissipation air inlet; the engine will also generate noise when running, and the noise will be transmitted to the outside of the cabin at the heat dissipation vents, which will also cause relevant personnel to hear a lot of noise when working, and the work experience is extremely poor;

[0005] On the other hand, when the "warm air" in the engine compartment exchanges heat at the radiator, the temperature difference between it and the high-temperature medium inside the radiator becomes smaller, the heat exchanged during the heat exchange process is greatly reduced, and the overall heat dissipation capacity of the radiator is reduced. At this time, the temperature inside the engine compartment will maintain a high temperature for a long time, and the loader will have high-temperature alarm and shutdown failures many times, which will have a great impact on the working efficiency of the engine and the operating performance of the entire vehicle. Utility Model Content

[0006] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a large-tonnage loader equipped with a noise-reducing and heat-insulating cabin, a noise-reducing and heat-insulating board assembly is arranged between the engine and the radiator, and a sound-insulating and heat-insulating sponge is installed on the noise-reducing and heat-insulating board assembly. The high-temperature heat radiation of objects such as the engine body and the muffler can be isolated from the "cold air" entering the cabin from outside the cabin through the noise-reducing and heat-insulating board assembly. The "cold air" only realizes heat exchange at the radiator, thereby enlarging the temperature difference between the high-temperature medium inside the radiator and the cold air; since there is no temperature difference at the heat dissipation air inlet, the air can only enter the cabin in one direction at the heat dissipation air inlet, thereby avoiding air disturbance and turbulence.

[0007] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0008] A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin comprises a cabin, an engine, a cooling fan, a noise-reducing and heat-insulating board assembly and a radiator. The engine, the noise-reducing and heat-insulating board assembly, the radiator and the cooling fan are sequentially installed inside the cabin and along the engine crankshaft direction.

[0009] The noise reduction and heat insulation panel assembly includes a sound insulation and heat insulation sponge partition and a partition support. The partition support includes a first partition support and a second partition support. One end of the first partition support and the second partition support are fixedly connected to the sound insulation and heat insulation sponge partition, and the other end is fixed to the inner wall of the cabin close to the engine. The sound insulation and heat insulation sponge partition, the first partition support and the second partition support arranged on the corresponding surface of the engine are all installed with sound insulation and heat insulation sponges.

[0010] Furthermore, heat dissipation air inlets are provided on both side walls of the cabin.

[0011] Furthermore, the noise reduction and heat insulation board assembly also includes a partition mounting base, and two partition mounting bases are provided, including a first partition mounting base and a second partition mounting base. The first partition mounting base is arranged at the bottom of the sound insulation and heat insulation sponge partition and is close to the first partition support, and the second partition mounting base is arranged at the bottom of the sound insulation and heat insulation sponge partition and is close to the second partition support.

[0012] Furthermore, the first bulkhead mounting base and the second bulkhead mounting base are both fixedly connected to the bottom surface of the cabin by bolts, and are close to the radiator, and have a fixing area with the radiator.

[0013] Furthermore, a support frame is provided at the top of the interior of the cabin, and the support frame is installed across the top of the engine, the noise reduction and heat insulation board assembly, the radiator and the cooling fan.

[0014] Furthermore, the noise reduction and heat insulation panel assembly also includes a partition mounting top seat, and two of the partition mounting top seats are provided, including a first partition mounting top seat and a second partition mounting top seat. The first partition mounting top seat is arranged on the top of the sound insulation and heat insulation sponge partition and corresponds to the position of the first partition mounting base up and down, and the second partition mounting top seat is arranged on the top of the sound insulation and heat insulation sponge partition and corresponds to the position of the second partition mounting base up and down.

[0015] Furthermore, the upper ends of the first partition mounting base and the second partition mounting top seat both support the support frame.

[0016] Furthermore, a muffler assembly is also provided inside the cabin, and the muffler assembly is fixed on the top of the engine and close to the noise reduction and heat insulation board assembly, and the muffler assembly is connected to the engine through a pipeline.

[0017] Furthermore, an air filter is provided at the top of the engine away from the noise reduction and heat insulation board assembly, and the air filter is connected to the engine through an air intake pipe.

[0018] Furthermore, a plurality of circular through holes are provided on the first partition support and the second partition support and near the sound insulation and heat insulation sponge partition.

[0019] With one or more of the above technical solutions, the utility model has the following beneficial effects:

[0020] 1. The utility model sets a noise reduction and heat insulation board assembly between the engine and the radiator, isolates the engine from the radiator through the noise reduction and heat insulation board assembly, arranges the engine in an independent engine room, isolates the heat radiation of high-temperature objects such as the engine and the body muffler from the "cold air" in the cabin through the noise reduction and heat insulation board assembly, and the "cold air" will no longer be affected by the heat radiation of the high-temperature objects on the way to the radiator, which makes the temperature difference between the high-temperature medium and the cold air at the radiator larger, and the "cold air" can exchange heat at the radiator to obtain more heat, thereby improving the heat dissipation performance.

[0021] 2. Since a noise reduction and heat insulation board assembly is installed on one side of the engine near the radiator, the "cold air" will not exchange heat at the heat dissipation air inlet, and there will be no temperature and pressure difference at the heat dissipation air inlet. This means that the heat dissipation air inlet will only allow air outside the cabin to enter the cabin in one direction, effectively avoiding the formation of air disturbance and turbulence in this area, increasing the flow of heat dissipating air molecules through the radiator by 10-15%, thereby effectively increasing the heat dissipation by nearly 5%.

[0022] 3. Sound insulation and heat insulation sponges are installed on the corresponding surfaces of the noise reduction and heat insulation board assembly and the engine. The sound insulation and heat insulation sponges can absorb noises of different frequencies and block the heat radiation from the engine from being transmitted to the radiator.

[0023] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 This is the front view of the external structure of the loader of the utility model;

[0026] Figure 2 This is the front view of the internal structure of the loader of the utility model;

[0027] Figure 3This is the front view of the noise reduction and heat insulation board assembly of the utility model;

[0028] Figure 4 This is a side view of the noise reduction and heat insulation board assembly of the utility model;

[0029] Figure 5 This is a side view of the loader of the utility model;

[0030] Figure 6 This is a top view of the internal structure of the loader of the utility model;

[0031] In the figure: 1. cabin, 2. engine, 3. cooling fan, 4. noise reduction and heat insulation board assembly, 5. radiator, 6. sound insulation and heat insulation sponge partition, 7. first partition support, 8. second partition support, 9. sound insulation and heat insulation sponge, 10. first partition mounting base, 11. second partition mounting base, 12. first partition mounting top seat, 13. second partition mounting top seat, 14. support frame, 15. heat dissipation air inlet, 16 muffler assembly, 17. air filter, 18. air intake duct, 19. circular through hole, 20. air connecting duct, 21. S area. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. In the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0034] Embodiment 1

[0035] like Figure 1 and Figure 2 As shown, the utility model includes a cabin 1, an engine 2, a cooling fan 3, a noise reduction and heat insulation board assembly 4 and a radiator 5. The engine 2, the noise reduction and heat insulation board assembly 4, the radiator 5 and the cooling fan 3 are installed in sequence inside the cabin 1 and along the crankshaft direction of the engine 2.

[0036] The noise reduction and heat insulation panel assembly 4 includes a sound insulation and heat insulation sponge partition 6 and a partition support. The partition support includes a first partition support 7 and a second partition support 8. One side of the first partition support 7 and the second partition support 8 are fixedly connected to the sound insulation and heat insulation sponge partition 6, and the other end is fixed on the inner wall of the cabin 1 close to the engine 2.

[0037] like Figure 3 and Figure 4As shown, sound insulation and heat insulation sponge 9 are installed on the sound insulation and heat insulation sponge partition 6, the first partition support 7 and the second partition support 8 arranged on the corresponding surface of the engine. The sound insulation and heat insulation sponge 9 will absorb noises of different frequencies in the cabin. The noise generated by the engine 1 during operation can be absorbed with the help of the sound insulation and heat insulation sponge 9, and the heat radiation transfer in the cabin can be blocked; the heat generated by the engine 2 and other objects during operation will be transferred toward the radiator, and the sound insulation and heat insulation sponge 9 will isolate the transferred heat radiation, and the heat radiation will not pass through the noise reduction and heat insulation board assembly.

[0038] The noise insulation board assembly 4 also includes a partition mounting base, and two partition mounting bases are provided, including a first partition mounting base 10 and a second partition mounting base 11. The first partition mounting base 10 is arranged at the bottom of the sound insulation and heat insulation sponge partition 6 and is close to the first partition support 7, and the second partition mounting base 11 is arranged at the bottom of the sound insulation and heat insulation sponge partition 6 and is close to the second partition support 8.

[0039] The first bulkhead mounting base 10 and the second bulkhead mounting base 11 are both fixedly connected to the bottom surface of the cabin 1 by bolts, and are close to the radiator 5, and leave a fixing area with the radiator 5. Due to the influence of structural factors of the noise insulation board assembly and the radiator, this fixing area is S-shaped, and the noise insulation board assembly 4 is secured inside the cabin 1 by bolts. The utility model preferably uses bolts in the connection method, which is convenient for the later disassembly and reinstallation of the noise insulation board assembly 4 inside the cabin.

[0040] The noise reduction and heat insulation panel assembly 4 also includes a partition mounting top seat, and there are two partition mounting top seats, including a first partition mounting top seat 12 and a second partition mounting top seat 13. The first partition mounting top seat 12 is arranged on the top of the sound insulation and heat insulation sponge partition 6 and corresponds to the position of the first partition mounting base 10 up and down. The second partition mounting top seat 13 is arranged on the top of the sound insulation and heat insulation sponge partition 6 and corresponds to the position of the second partition mounting base 11 up and down.

[0041] A support frame 14 is provided at the top of the interior of the cabin. The support frame 14 is installed across the engine 2, the heat dissipation fan 3, the fan noise reduction and heat insulation board assembly 4 and the radiator 5. The upper ends of the first partition mounting base 12 and the second partition mounting top seat 13 both support the support frame. The noise reduction and heat insulation board assembly 4 is fixed inside the cabin through the partition mounting top seat and the partition mounting base, and the support frame can also be stabilized above the cabin body.

[0042] like Figure 5 As shown, the heat dissipation air inlet 15 of the utility model is arranged on the side walls of the cabin 1 on both sides. The heat dissipation air inlet 15 is a passage for the "cold air" outside the cabin 1 to enter the cabin. The heat dissipation fan 3 can suck the "cold air" outside the cabin into the cabin 1 through the heat dissipation vents 15.

[0043] like Figure 6 As shown, one end of the first partition support 7 and the second partition support 8 are directly fixed to the inner wall of the cabin 1, and due to the distribution of the noise reduction and heat insulation panel assembly 4 in the cabin structure, there is an S area 21 between the noise reduction and heat insulation panel assembly 4 and the radiator 5. This S area 21 is exactly the S-shaped fixing area mentioned above.

[0044] Since the noise reduction and heat insulation board assembly 4 isolates the radiator 5 and the engine 2, and the noise reduction and heat insulation board assembly 4 is installed with a sound insulation and heat insulation sponge 9, the "cold air" in the cabin will no longer be affected by the heat radiation of the engine 2 body at the heat dissipation air inlet 9, and the "cold air" will not exchange heat at the heat dissipation vents 15, which means that there is only "cold air" at the heat dissipation vents 15, and "warm air" does not exist here. The "cold air" in the cabin directly flows to the radiator 5 under the effect of the guidance of the noise reduction and heat insulation board assembly 4, and heat is exchanged at the radiator with the help of the temperature difference between the high-temperature medium and the "cold air", so that the ambient temperature in the cabin 1 is reduced, and the working environment temperature of the engine 2 and its radiator 5, muffler 5 and other components is greatly reduced.

[0045] The reason for the disturbance and turbulence at the air inlet is the pressure difference caused by the heat exchange at this air inlet. Since there will be no heat exchange and pressure difference at the heat dissipation vents 15 in the utility model, the heat dissipation vents 9 only allow the air outside the cabin 1 to enter the cabin in one direction, and the "hot air" in the cabin can only be discharged from the rear end of the cooling fan 3 to the outside of the cabin, effectively avoiding the formation of disturbance and turbulence in this area, increasing the flow of 10-15% of the heat dissipating air molecules through the radiator, thereby effectively increasing the heat dissipation by nearly 5%, and the problem of air flow turbulence is solved.

[0046] like Figure 1 As shown, a muffler assembly 16 is also provided inside the cabin 1. The muffler assembly 16 is fixed on the top of the engine 1 and close to the sound-proof and heat-insulating sponge partition 6. The muffler assembly 16 is connected to the engine 1 through a pipeline. When the engine 1 is working, the exhaust gas generated by the engine flows through the pipeline to the muffler assembly 16 and is discharged outward. Sound-absorbing materials are fixed on the inner wall of the air flow channel inside the muffler assembly 16 or arranged in the pipeline in a certain manner.

[0047] When the sound wave enters the muffler assembly 16, a part of the sound energy is converted into heat energy and dissipated by friction in the pores of the porous material, and the sound wave passing through the muffler assembly 16 is weakened, and the other part moves forward in a straight line in the muffler assembly 16. When the two parts of the sound waves meet at the outlet of the muffler assembly 16, the sound wave passing through the pores of the porous material is exactly the trough (weakened), while the sound wave moving along the straight line is the peak (enhanced), and the two sound waves just cancel each other out at the outlet, thus achieving the purpose of sound attenuation.

[0048] An air filter 17 is provided at the top of the engine 1 and away from the noise reduction and heat insulation board assembly 4. The air filter 17 is connected to the engine 1 through an intake pipe 18. The suction force generated when the engine cylinder is inhaled is used to generate a pressure difference between the inside and outside of the air filter 18. The external air enters the air filter 18 at a higher speed under the action of pressure, and the solid materials are blocked by the filter paper and retained, while the liquid quickly passes through the filter paper and falls into the suction filter bottle under the combined action of the air pressure difference and gravity, thereby completing the air filtration.

[0049] Two circular through holes 19 are provided on the first partition support 7 and the second partition support 8 and close to the sound insulation and heat insulation sponge partition 6. The two circular through holes are arranged in parallel up and down. The through hole size of the circular through holes is slightly larger than the air connecting pipe 20 between the muffler assembly 16 and the radiator. The air connecting pipe 20 at the muffler assembly 16 can pass through the circular through holes to be connected to the radiator.

[0050] Embodiment 2

[0051] In a typical embodiment of the utility model, this embodiment discloses a working method of a large-tonnage loader equipped with a noise-reducing and heat-insulating cabin. Using the large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as described in Example 1, the process of "cold air" outside the cabin completing heat exchange and becoming "hot air" includes the following steps:

[0052] Step 1: “Cold air” outside the cabin 1 enters the interior of the cabin 1 from the heat dissipation air inlet 15 .

[0053] Step 2: The "cold air" sucked into the cabin will be directly blown to the radiator 5 under the guidance effect of the noise reduction and heat insulation board assembly 4. The "cold air" will not be affected by the heat radiation of objects such as the engine 2 during the movement to the radiator 5.

[0054] Step 3: The "cold air" at the radiator exchanges heat with the help of the temperature difference between the high-temperature medium and the "cold air". After the heat exchange is completed, the ambient temperature in the cabin 1 will be greatly reduced.

[0055] Step 4: The "hot air" after heat exchange is discharged from the cabin through the cooling fan 3.

[0056] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin, characterized in that: It includes a cabin, an engine, a cooling fan, a noise reduction and heat insulation board assembly and a radiator, wherein the engine, the noise reduction and heat insulation board assembly, the radiator and the cooling fan are sequentially installed inside the cabin and along the engine crankshaft direction; The noise reduction and heat insulation panel assembly includes a sound insulation and heat insulation sponge partition and a partition support. The partition support includes a first partition support and a second partition support. One end of the first partition support and the second partition support are fixedly connected to the sound insulation and heat insulation sponge partition, and the other end is fixed to the inner wall of the cabin close to the engine. The sound insulation and heat insulation sponge partition, the first partition support and the second partition support arranged on the corresponding surface of the engine are all installed with sound insulation and heat insulation sponges.

2. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: Heat dissipation air inlets are arranged on the side walls of both sides of the cabin.

3. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: The noise reduction and heat insulation board assembly also includes a partition mounting base, and two partition mounting bases are provided, including a first partition mounting base and a second partition mounting base. The first partition mounting base is arranged at the bottom of the sound insulation and heat insulation sponge partition and is close to the first partition support, and the second partition mounting base is arranged at the bottom of the sound insulation and heat insulation sponge partition and is close to the second partition support.

4. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 3, characterized in that: The first bulkhead mounting base and the second bulkhead mounting base are both fixedly connected to the bottom surface of the cabin by bolts, and are close to the radiator, and have a fixing area with the radiator.

5. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: A support frame is arranged at the top of the interior of the cabin, and the support frame is installed across the engine, the noise reduction and heat insulation board assembly, the radiator and the cooling fan.

6. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: The noise reduction and heat insulation panel assembly also includes a partition mounting top seat, and two partition mounting top seats are provided, including a first partition mounting top seat and a second partition mounting top seat. The first partition mounting top seat is arranged on the top of the sound insulation and heat insulation sponge partition and corresponds to the position of the first partition mounting base up and down. The second partition mounting top seat is arranged on the top of the sound insulation and heat insulation sponge partition and corresponds to the position of the second partition mounting base up and down.

7. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: A muffler assembly is also provided inside the cabin. The muffler assembly is fixed on the top of the engine and close to the noise reduction and heat insulation board assembly. The muffler assembly is connected to the engine through a pipeline.

8. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: An air filter is arranged at the top of the engine and away from the noise reduction and heat insulation board assembly, and the air filter is connected to the engine through an air intake pipe.

9. A large-tonnage loader equipped with a noise-reducing and heat-insulating cabin as claimed in claim 1, characterized in that: A plurality of circular through holes are provided on the first partition support and the second partition support and near the sound insulation and heat insulation sponge partition.

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