Cockpit capable of reducing noise

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a cockpit capable of reducing noise. According to the technical scheme, the air exchange device comprises a cockpit assembly, a first sound insulation side plate and a second sound insulation side plate which are used for insulating noise of an engine are bonded to the two faces, close to the engine, of the cockpit assembly, an air exchange box is fixedly installed on the cockpit assembly, connecting pipes are fixedly connected to the two ends of the air exchange box, and an air outlet pipe and an air inlet pipe are connected to the connecting pipes; the first sound insulation side plate and the second sound insulation side plate are used for protecting the first sound insulation sponge and the second sound insulation sponge inside, and the first sound insulation sponge and the second sound insulation sponge can achieve the sound insulation and noise reduction effects and are used for reducing noise of an engine; and meanwhile, the filter plate with the dustproof holes is used for reducing dust entering the cab, the scraper blade can clean the dust on the filter plate, and accumulation of the dust can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a cockpit capable of reducing noise. Background Technique

[0002] A cockpit is a cabin used for a driving tool. Generally, the body of a driving tool is provided with a cockpit. Its structure is directly related to the safety, work efficiency and health of the driver. The cockpit generally adopts a thin metal shell structure and is connected to the vehicle frame without bearing loads, belonging to a non-load-bearing body.

[0003] An excavator, also known as an excavation machine, belongs to large-scale mechanical equipment itself, and the engines used are all high-power diesel engines. The noise of the diesel engine of the excavator is very loud, and the cockpit of the excavator is installed on one side of the engine, close to the noise source. In addition, most excavators travel on tracks, and the noise generated during the running of the tracks can be transmitted into the cockpit through the metal connection parts. Moreover, the working environment of the excavator is outdoors. When the excavator stops midway, under high-temperature exposure and the temperature emitted by the excavator itself, the temperature of the cockpit will rise rapidly. Subsequently, the driver needs to dissipate heat from the cockpit of the excavator in advance to continue working, which will reduce the working efficiency of the excavator. At the same time, during the process of ventilation and heat dissipation, the external dusty gas is easy to enter the cockpit through the ventilation pipe, and the dust will adhere to the surface of the fan, affecting the ventilation efficiency. Therefore, this solution proposes a cockpit capable of reducing noise. Summary of the Invention

[0004] The purpose of the utility model is to address the problems in the background technique that the noise of the diesel engine of the excavator is very loud, the cockpit of the excavator is installed on one side of the engine, close to the noise source, and most excavators travel on tracks, and the noise generated during the running of the tracks can be transmitted into the cockpit through the metal connection parts, and to propose a cockpit capable of reducing noise.

[0005] Technical solution of the utility model: A cockpit capable of reducing noise, including a cockpit assembly. On two sides of the cockpit assembly close to the engine, a first sound insulation side plate and a second sound insulation side plate for isolating engine noise are bonded. A ventilation box is fixedly installed on the cockpit assembly. Both ends of the ventilation box are fixedly connected with connecting pipes. An air outlet pipe and an air inlet pipe are connected to the connecting pipes. One ends of the air outlet pipe and the air inlet pipe are connected to two round holes of the cockpit assembly. Filter plates are fixedly sleeved at both ends of the connecting pipes. Collar rings are installed on the filter plates. A cross plate is fixedly connected inside the ventilation box. A double-headed motor is fixedly installed on the cross plate. A fan is fixedly sleeved on the output shaft of the double-headed motor. One end of the output shaft of the double-headed motor is rotatably connected with a differential. The differential is rotatably connected with a connecting rod. The end of the connecting rod movably penetrates through the collar ring and is connected with a scraping plate. The scraping plate is in contact with one side of the filter plate.

[0006] Optionally, a connecting block is fixedly connected to the first sound insulation side plate. Three first fixing blocks are fixedly connected to the first sound insulation side plate. The multiple first fixing blocks are connected to the cockpit assembly through bolts.

[0007] Optionally, a clamping groove corresponding to the first fixing block is opened on the second sound insulation side plate. The clamping groove is clamped and connected with the connecting block. Three second fixing blocks are fixedly connected to the second sound insulation side plate. The multiple second fixing blocks are connected to the cockpit assembly through bolts.

[0008] Optionally, a first observation port for observation is opened on the first sound insulation side plate. A second observation port for observation is opened on the second sound insulation side plate.

[0009] Optionally, a fixing frame is clamped and connected to the cockpit assembly. Multiple rectangular grooves are opened on the fixing frame. Sound insulation cotton for sound insulation is filled in the rectangular grooves.

[0010] Optionally, damping stickers for sound insulation are bonded on the inner metal surfaces of the cockpit assembly. A heat preservation layer is bonded on the outer surface of the damping stickers.

[0011] Optionally, a cavity is opened inside the first sound insulation side plate. The cavity is filled with first sound insulation sponge for sound insulation and noise reduction. A cavity is opened inside the second sound insulation side plate. The cavity is filled with second sound insulation sponge for sound insulation and noise reduction.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] In the utility model, the first sound insulation side plate and the second sound insulation side plate are used to protect the first sound insulation sponge and the second sound insulation sponge inside, and at the same time can play a role in sound insulation and noise reduction, so as to reduce the noise of the engine. The rectangular grooves on the fixing frame are used to fix the middle sound insulation cotton. The sound insulation cotton can play a role in reducing the sound when the excavator crawler moves;

[0014] Furthermore, by changing the air flow velocity in the connecting pipe, the cockpit assembly can be quickly ventilated and cooled. At the same time, the filter plate with dust-proof holes is used to reduce the entry of dust into the cockpit. Meanwhile, the scraper can clean the dust on the filter plate to avoid dust accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural schematic diagram of an embodiment of the present invention is given;

[0016] Figure 2 It is a structural schematic diagram of the cockpit assembly;

[0017] Figure 3 It is a structural schematic diagram of the second sound insulation side plate;

[0018] Figure 4 It is a structural schematic diagram of the first sound insulation side plate;

[0019] Figure 5 It is a structural schematic diagram of the ventilation box.

[0020] Reference numerals: 1, cockpit assembly; 2, shock-absorbing sticker; 3, thermal insulation layer; 4, first sound insulation side plate; 401, connecting block; 402, first fixing block; 403, first observation port; 404, first sound insulation sponge; 5, second sound insulation side plate; 501, clamping groove; 502, second fixing block; 503, second observation port; 504, second sound insulation sponge; 6, fixing frame; 601, rectangular groove; 7, sound insulation cotton; 8, ventilation box; 801, cross plate; 802, double-headed motor; 803, fan; 804, differential; 805, connecting rod; 806, scraper; 9, connecting pipe; 10, air outlet pipe; 11, air inlet pipe; 12, filter plate; 1201, collar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Embodiment

[0023] As Figure 1 、 Figure 3 and Figure 5As shown in the figure, a cockpit capable of reducing noise proposed by the present utility model includes a cockpit assembly 1. On two sides of the cockpit assembly 1 close to the engine, a first sound insulation side plate 4 and a second sound insulation side plate 5 for isolating engine noise are adhesively attached. The first sound insulation side plate 4 and the second sound insulation side plate 5 are used to reduce engine noise. A ventilation box 8 is fixedly installed on the cockpit assembly 1. Both ends of the ventilation box 8 are fixedly connected with connecting pipes 9. An air outlet pipe 10 and an air inlet pipe 11 are connected to the connecting pipe 9. One ends of the air outlet pipe 10 and the air inlet pipe 11 are connected to two round holes of the cockpit assembly 1. Filter plates 12 are fixedly sleeved at both ends of the connecting pipe 9. Collar 1201 is installed on the filter plate 12. A cross plate 801 is fixedly connected inside the ventilation box 8. A double-headed motor 802 is fixedly installed on the cross plate 801. A fan 803 is fixedly sleeved on the output shaft of the double-headed motor 802. One end of the output shaft of the double-headed motor 802 is rotatably connected with a differential 804. The differential 804 is rotatably connected with a connecting rod 805. The end of the connecting rod 805 movably passes through the collar 1201 and is connected with a scraping plate 806. The scraping plate 806 is in contact with one side of the filter plate 12. By driving the fan 803 to rotate through the double-headed motor 802, the air flow in the ventilation box 8 and the connecting pipe 9 is driven. When the air flow in the connecting pipe 9 starts to flow rapidly, it will drive the air flow in the air outlet pipe 10 and the air inlet pipe 11 to circulate, so that the air in the cockpit assembly 1 can be quickly replaced, thus achieving the effect of rapid cooling. At the same time, when the double-headed motor 802 rotates, it will drive the differential 804 with a speed ratio of one to ten to rotate, thereby driving the connecting rod 805 and the scraping plate 806 to rotate, so that the scraping plate 806 can clean the dust at the dust-proof holes of the filter plate 12.

[0024] As Figure 1 , Figure 3 and Figure 5 shown, a connecting block 401 is fixedly connected to the first sound insulation side plate 4. Three first fixing blocks 402 are fixedly connected to the first sound insulation side plate 4. The plurality of first fixing blocks 402 are connected to the cockpit assembly 1 through bolts. By connecting the first fixing blocks 402 with bolts, the first sound insulation side plate 4 can be fixed, and the subsequent detachment of the first sound insulation side plate 4 can be prevented.

[0025] As Figure 1 , Figure 3 and Figure 5As shown in the figure, a clamping groove 501 corresponding to the first fixing block 402 is formed on the second sound insulation side plate 5. The clamping groove 501 is clamped and connected with the connecting block 401. Three second fixing blocks 502 are fixedly connected to the second sound insulation side plate 5. The plurality of second fixing blocks 502 are connected to the cab assembly 1 through bolts. By connecting the second fixing blocks 502 with bolts, the second sound insulation side plate 5 can be fixed, and the subsequent detachment of the second sound insulation side plate 5 can be prevented. The first sound insulation side plate 4 and the second sound insulation side plate 5 are connected together through the clamping connection between the clamping groove 501 and the connecting block 401, thereby improving the stability of the overall side plate.

[0026] As Figure 1 , Figure 3 and Figure 5 shown, a first observation port 403 for observation is formed on the first sound insulation side plate 4, and a second observation port 503 for observation is formed on the second sound insulation side plate 5. Both the first observation port 403 and the second observation port 503 are used to provide a field of vision for the driver.

[0027] As Figure 1 and Figure 4 shown, a fixed frame 6 is clamped and connected to the cab assembly 1. A plurality of rectangular grooves 601 are formed on the fixed frame 6. Sound insulation cotton 7 for sound insulation is filled in the rectangular grooves 601. The rectangular grooves 601 on the fixed frame 6 are used to fix the middle sound insulation cotton 7, and the sound insulation cotton 7 can play a role in reducing the sound generated when the excavator track moves.

[0028] As Figure 1-2 shown, damping stickers 2 for sound insulation are bonded to the inner metal surfaces of the cab assembly 1. A heat preservation layer 3 is bonded to the outer surface of the damping stickers 2. The damping stickers 2 can reduce the vibration and noise generated during vehicle driving and improve the quietness inside the vehicle.

[0029] As Figure 3-4 shown, a cavity is formed inside the first sound insulation side plate 4, and a first sound insulation sponge 404 for sound insulation and noise reduction is filled in the cavity. A cavity is formed inside the second sound insulation side plate 5, and a second sound insulation sponge 504 for sound insulation and noise reduction is filled in the cavity. The first sound insulation sponge 404 and the second sound insulation sponge 504 are used to reduce external noise.

[0030] In this embodiment, first, the cavities inside the first sound insulation side plate 4 and the second sound insulation side plate 5 are filled with the first sound insulation sponge 404 and the second sound insulation sponge 504. Then, the first sound insulation side plate 4 and the second sound insulation side plate 5 are adhesively bonded to two faces of the cockpit assembly 1 close to the engine side with glue, and then bolted to the first fixing block 402 and the second fixing block 502 to fix the first sound insulation side plate 4 and the second sound insulation side plate 5. Then, the sound insulation cotton is stuffed into the rectangular groove 601 at the bottom of the fixing frame 6, and then the fixing frame 6 is installed at the bottom of the cockpit assembly 1. The cockpit assembly 1 is installed on the excavator by bolts. Finally, the shock-absorbing stickers 2 and the heat-insulating layer 3 are pasted on the metal surface inside the cockpit assembly 1. Before pasting, the metal surface needs to be cleaned to ensure that there are no gaps between the shock-absorbing stickers 2 and the metal surface, so as to improve the sound insulation effect. The double-headed motor 802 drives the fan 803 to rotate, thereby driving the air flow in the air exchange box 8 and the connecting pipe 9. When the air flow in the connecting pipe 9 starts to flow rapidly, it will drive the air flow in the air outlet pipe 10 and the air inlet pipe 11 to circulate, so that the air in the cockpit assembly 1 can be quickly replaced, thus achieving the effect of rapid cooling. At the same time, when the double-headed motor 802 rotates, it will drive the differential with a speed ratio of one to ten to rotate, thereby driving the connecting rod 805 and the scraper 806 to rotate, so that the scraper 806 can clean the dust on the filter plate 12.

[0031] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A cockpit capable of reducing noise, comprising a cockpit assembly (1), characterized in that: The cockpit assembly (1) has two sides close to the engine bonded with a first sound insulation side panel (4) and a second sound insulation side panel (5) for isolating engine noise; The cockpit assembly (1) is fixedly mounted with a ventilation box (8), and the two ends of the ventilation box (8) are fixedly connected with connecting pipes (9), and the connecting pipes (9) are connected with an air outlet pipe (10) and an air inlet pipe (11), and one end of the air outlet pipe (10) and the air inlet pipe (11) are connected to two circular holes of the cockpit assembly (1), and the two ends of the connecting pipe (9) are fixedly sleeved with filter plates (12), and a collar (1201) is installed on the filter plate (12), and the interior of the ventilation box (8) is fixedly connected with a transverse plate (801), and a double-headed motor (802) is fixedly mounted on the transverse plate (801), and a fan (803) is fixedly sleeved on the output shaft of the double-headed motor (802), and one end of the output shaft of the double-headed motor (802) is rotatably connected with a differential (804), and the differential (804) is rotatably connected with a connecting rod (805); The end of the connecting rod (805) movably passes through the sleeve ring (1201) and is connected to a scraper (806), and the scraper (806) is in contact with one side of the filter plate (12).

2. A cockpit capable of reducing noise according to claim 1, characterized in that: A connecting block (401) is fixedly connected to the first sound insulation side panel (4), and three first fixing blocks (402) are fixedly connected to the first sound insulation side panel (4), and the plurality of first fixing blocks (402) are connected to the cockpit assembly (1) via bolts.

3. The cockpit capable of reducing noise according to claim 1, characterized in that: The second sound insulation side panel (5) is provided with a snap-fitting groove (501) corresponding to the first fixing block (402), the snap-fitting groove (501) is snap-fitted and connected with the connecting block (401), three second fixing blocks (502) are fixedly connected to the second sound insulation side panel (5), and the plurality of second fixing blocks (502) are connected to the cockpit assembly (1) via bolts.

4. The cockpit capable of reducing noise according to claim 1, characterized in that: The first sound insulation side panel (4) is provided with a first observation port (403) for observation, and the second sound insulation side panel (5) is provided with a second observation port (503) for observation.

5. The cockpit capable of reducing noise according to claim 1, characterized in that: The cockpit assembly (1) is snap-connected with a fixing frame (6), the fixing frame (6) is provided with a plurality of groups of rectangular grooves (601), and the rectangular grooves (601) are filled with sound insulation cotton (7) for sound insulation.

6. The cockpit capable of reducing noise according to claim 1, characterized in that: The interior of the cockpit assembly (1) is bonded with a shock-absorbing sticker (2) for sound insulation on the metal surface, and the outer surface of the shock-absorbing sticker (2) is bonded with a heat-insulating layer (3).

7. The cockpit capable of reducing noise according to claim 1, characterized in that: The first sound insulation side panel (4) has a cavity inside, and the cavity is filled with a first sound insulation sponge (404) for sound insulation and noise reduction; the second sound insulation side panel (5) has a cavity inside, and the cavity is filled with a second sound insulation sponge (504) for sound insulation and noise reduction.

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