Closed cab suitable for large-tonnage underground carry-scraper

Abstract

The utility model relates to the technical field of earthmoving machinery, in particular to a closed cab suitable for a large-tonnage underground carry-scraper, which comprises a bottom plate, a closed cab arranged on the upper side of the bottom plate and an inner door arranged on one side of the closed cab. The dust treatment shell is arranged on the upper side of the bottom plate and is connected with one side of the closed cab; the outer door is arranged on one side of the dust treatment shell; the air cooling mechanism and the dust collection multi-stage dust removal mechanism are arranged on the upper side of the dust treatment shell and are arranged at intervals; the dust inlet pipe is communicated with an air inlet port of the dust collection multi-stage dust removal mechanism; the dual-channel flow control assembly is communicated with an air outlet port of the air cooling mechanism; the communicating pipe is communicated with an air outlet port of the dust collection multi-stage dust removal mechanism and an air inlet port of the air cooling mechanism; according to the closed cab of the large-tonnage underground carry-scraper, dust is prevented from entering when a driver enters and exits, the health of the driver is protected, and the equipment failure risk is reduced; meanwhile, the cooling efficiency of the closed cab is improved, and it is ensured that the temperature in the cab is comfortable.

Description

Technical Field

[0001] This utility model relates to the field of earthmoving machinery technology, specifically to a closed cab suitable for large-tonnage underground loader. Background Technology

[0002] A scraper is a type of earthmoving and transport machinery that uses a bucket to shovel soil and load the broken soil into the bucket for transport. It can complete a comprehensive operation of shoveling, loading, transporting, unloading, layering, and compacting soil in sections. It is suitable for leveling sites in railway, road, water conservancy, and power projects. Scrapers have the advantages of simple operation, no terrain restrictions, independent operation, high speed, and high production efficiency.

[0003] In underground mining operations, the enclosed cabs of underground loaders typically have doors for easy access by the operator. However, during actual underground operations, when the operator opens the door to enter the cab, a large amount of high-concentration dust from the underground environment rushes in. This not only severely pollutes the air inside the cab, posing a threat to the operator's health, but also causes the dust to adhere to the equipment inside. Over time, this dust accumulation can affect the normal operation of the equipment, reduce its stability, and increase the risk of equipment failure.

[0004] In addition, fans are usually installed in the cab to regulate the temperature and ensure the operator's comfort. However, fans only provide limited cooling and the overall cooling effect is poor, making it difficult to meet the operator's need for a comfortable temperature in the high-temperature environment underground, which to some extent affects the operator's work efficiency and operating experience. Utility Model Content

[0005] The purpose of this invention is to provide a closed cab suitable for large-tonnage underground loader, in order to solve the problems of high concentrations of dust entering the cab of existing underground loader cabs when the door is opened, which endangers the driver's health and affects equipment operation; and the poor cooling effect of the in-vehicle fan, which affects the driving experience and efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a closed cab suitable for large-tonnage underground loaders, comprising a base plate, a closed cab located on the upper side of the base plate, an inner door located on one side of the closed cab, and a dust treatment shell located on the upper side of the base plate and connected to one side of the closed cab, an outer door located on one side of the dust treatment shell and corresponding to the inner door, an air cooling mechanism and a multi-stage dust removal mechanism located on the upper side of the dust treatment shell and spaced apart, a dust inlet pipe connected to the air inlet port of the multi-stage dust removal mechanism, a dual-channel flow control assembly connected to the air outlet port of the air cooling mechanism, and a connecting pipe connected to the air outlet port of the multi-stage dust removal mechanism and the air inlet port of the air cooling mechanism; the two air outlet ports of the dual-channel flow control assembly are respectively connected to the other side of the closed cab and the bottom of one side of the dust treatment shell; one end of the dust inlet pipe penetrates the upper side of the dust treatment shell and extends into the interior of the dust treatment shell.

[0007] Furthermore, the multi-stage dust collection mechanism includes a filter housing disposed on the upper side of the dust treatment housing, a fan, an activated carbon filter plate, a second dust filter, and a first dust filter arranged sequentially and at intervals inside the filter housing. The first dust filter corresponds to the air inlet port of the filter housing, the fan corresponds to the air outlet port of the filter housing, one end of the dust inlet pipe is connected to the air inlet port of the filter housing, and one end of the connecting pipe is connected to the air outlet port of the filter housing.

[0008] Furthermore, the air cooling mechanism includes a cooling shell disposed on the upper side of the dust treatment shell, a semiconductor refrigeration chip penetrating the upper side of the cooling shell, a heat-conducting aluminum plate disposed at the cold end of the semiconductor refrigeration chip and located inside the cooling shell, and a plurality of metal cold plates disposed on the lower side of the heat-conducting aluminum plate and spaced apart. The other end of the connecting pipe is connected to the air inlet port of the cooling shell.

[0009] Furthermore, the dual-channel flow control assembly includes an air circulation pipe connected to the air outlet port of the cooling housing, a cooling air inlet pipe connected to the outer wall of the air circulation pipe, a second electrically controlled valve disposed on the cooling air inlet pipe section, and a first electrically controlled valve disposed on the air circulation pipe section and corresponding to the air inlet port of the cooling air inlet pipe. One end of the cooling air inlet pipe is connected to the other side of the enclosed cab, and one end of the air circulation pipe is connected to the bottom of one side of the dust treatment housing.

[0010] Furthermore, a temperature sensor is provided on one side of the interior of the enclosed cab, and a dust concentration sensor and a PLC controller are provided on one side of the interior of the dust treatment housing. The fan, semiconductor cooling chip, first electric control valve, second electric control valve, temperature sensor, and dust concentration sensor are all electrically connected to the PLC controller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The enclosed cab of this utility model, applicable to large-tonnage underground loaders, through the coordinated operation of the inner door, outer door, dust treatment shell, multi-stage dust removal mechanism, air circulation pipe, and first electric control valve, prevents dust from entering the enclosed cab when the driver enters or exits, protecting the driver's health, reducing dust erosion of the equipment, improving equipment stability, and reducing the risk of equipment failure.

[0013] 2. The enclosed cab of this utility model, applicable to large-tonnage underground loaders, improves cooling efficiency and ensures a comfortable temperature inside the enclosed cab through the coordinated operation of a dust treatment shell, a multi-stage dust removal mechanism, an air circulation pipe, a cooling air intake pipe, and a second electrically controlled valve. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the enclosed cab of the present invention, applicable to large-tonnage underground loader;

[0015] Figure 2 This is a cross-sectional schematic diagram of the air cooling mechanism and the multi-stage dust removal mechanism of this utility model;

[0016] Figure 3 This is a system control block diagram of the enclosed cab of the present invention, applicable to large-tonnage underground loader.

[0017] In the diagram: 1. Base plate; 2. Enclosed cab; 3. Interior door; 4. Dust treatment housing; 5. Exterior door; 6. Air cooling mechanism; 7. Air circulation pipe; 8. First electrically controlled valve; 9. Cooling air inlet pipe; 10. Second electrically controlled valve; 11. Dust treatment housing; 12. Dust inlet pipe; 13. First dust filter; 14. Second dust filter; 15. Activated carbon filter plate; 16. Fan; 17. Connecting pipe; 18. Cooling housing; 19. Semiconductor refrigeration chip; 20. Cold metal plate; 21. Dust concentration sensor; 22. PLC controller; 23. Temperature sensor; 24. Multi-stage dust collection mechanism; 25. Cooling aluminum plate. Detailed Implementation

[0018] Please see Figure 1-3A closed cab suitable for large-tonnage underground loaders includes a base plate 1, a closed cab 2 mounted on the upper side of the base plate 1, and an inner door 3 connected to one side of the closed cab 2 via a hinge; it also includes a dust treatment housing 4 mounted on the upper side of the base plate 1 and connected to one side of the closed cab 2, an outer door 5 connected to one side of the dust treatment housing 4 via a hinge and corresponding to the inner door 3, an air cooling mechanism 6 and a multi-stage dust collection mechanism 24 arranged at intervals on the upper side of the dust treatment housing 4, and a dust inlet connected to the air inlet port of the multi-stage dust collection mechanism 24. Pipe 12, a dual-channel flow control assembly connected to the air outlet port of the air cooling mechanism 6, and a connecting pipe 17 connected to the air outlet port of the multi-stage dust removal mechanism 24 and the air inlet port of the air cooling mechanism 6; the two air outlet ports of the dual-channel flow control assembly are respectively connected to the other side of the enclosed cab 2 and the bottom of one side of the dust treatment housing 4; one end of the dust inlet pipe 12 passes through the upper side of the dust treatment housing 4 and extends into the interior of the dust treatment housing 4; the contact part between the outer door 5 and the dust treatment housing 4 is provided with a rubber sealing gasket, which fits tightly when the outer door 5 is closed to prevent dust from entering.

[0019] The multi-stage dust collection mechanism 24 includes a filter housing 11 connected to the upper side of the dust treatment housing 4, a fan 16, an activated carbon filter plate 15, a second dust filter 14, and a first dust filter 13 sequentially installed inside the filter housing 11. The first dust filter 13 corresponds to the air inlet port of the filter housing 11, and the fan 16 corresponds to the air outlet port of the filter housing 11. One end of the dust inlet pipe 12 is connected to the air inlet port of the filter housing 11, and one end of the connecting pipe 17 is connected to the air outlet port of the filter housing 11. The pore size of the first dust filter 13 is larger than that of the second dust filter 14. Through the triple filtration of the first dust filter 13, the second dust filter 14, and the activated carbon filter plate 15, the interception and adsorption of dust particles of different sizes are achieved.

[0020] The air cooling mechanism 6 includes a cooling housing 18 connected to the upper side of the dust handling housing 4, a semiconductor cooling chip 19 installed through the upper side of the cooling housing 18, a heat-conducting aluminum plate 25 installed at the cold end of the semiconductor cooling chip 19 and located inside the cooling housing 18, and multiple metal cold plates 20 connected to the lower side of the heat-conducting aluminum plate 25 and spaced apart. The other end of the connecting pipe 17 is connected to the air inlet port of the cooling housing 18. By accelerating heat exchange through the metal cold plates 20, compared with the cooling method of traditional fans, the air temperature inside the closed cab 2 can be quickly reduced, improving the driving environment temperature and enhancing the driver's operating comfort.

[0021] The dual-channel airflow control assembly includes an air circulation pipe 7 connected to the air outlet of the cooling housing 18, a cooling air inlet pipe 9 connected to the outer wall of the air circulation pipe 7, a second electrically controlled valve 10 installed on the cooling air inlet pipe 9, and a first electrically controlled valve 8 installed on the air circulation pipe 7 and corresponding to the air inlet port of the cooling air inlet pipe 9. One end of the cooling air inlet pipe 9 is connected to the other side of the enclosed cab 2, and one end of the air circulation pipe 7 is connected to the bottom of one side of the dust treatment housing 4. When the enclosed cab 2 needs to be cooled, the second electrically controlled valve 10 controls the cooling air to be delivered through the cooling air inlet pipe 9 to regulate the room temperature.

[0022] A temperature sensor 23 is installed on one side of the interior of the enclosed cab 2, and a dust concentration sensor 21 and a PLC controller 22 are installed on one side of the interior of the dust treatment housing 4. The fan 16, the semiconductor cooling chip 19, the first solenoid valve 8, the second solenoid valve 10, the temperature sensor 23, and the dust concentration sensor 21 are all electrically connected to the PLC controller 22.

[0023] Working Process and Principle: During operation in the enclosed cab of a large-tonnage underground loader, when the operator prepares to enter, they first open the outer door 5 and enter the dust treatment housing 4, then immediately close the outer door 5. At this time, high-concentration dust from underground rushes into the dust treatment housing 4. The dust concentration sensor 21 detects in real time that the dust concentration exceeds the standard and transmits the signal to the PLC controller 22. The PLC controller 22 immediately starts the fan 16 and the first electrically controlled valve 8. The fan 16 generates suction, driving the dust-laden air through the dust inlet pipe 12 into the filter housing 11. The dust-laden air passes through multiple stages of filtration in the filter housing 11, including the first dust filter 13, the second dust filter 14, and the activated carbon filter plate 15, intercepting dust particles. The purified air is then transported to the cooling housing 18 through the connecting pipe 17 and flows along the air circulation pipe 7, thus achieving dust removal from the air inside the dust treatment housing 4. When the dust concentration sensor 21 detects that the dust content has dropped to the set threshold, the PLC controller 22 automatically shuts down the fan 16 and the first electric control valve 8. At this time, the driver can open the inner door 3 and enter the closed cab 2.

[0024] During operation, the interior door 3 is opened. If the temperature sensor 23 inside the closed cab 2 detects that the ambient temperature is too high, it sends the data to the PLC controller 22. The PLC controller 22 responds by simultaneously activating the second electronically controlled valve 10, the fan 16, and the thermoelectric cooler 19. Air, driven by the fan 16, flows through the dust inlet pipe 12, the filter housing 11, and the connecting pipe 17 into the cooling housing 18. The cooling aluminum plate 25 at the cold end of the thermoelectric cooler 19 and multiple metal cold plates 20 cool the air. The cooled air is then transported to the interior of the closed cab 2 through the air circulation pipe 7 and the cooling inlet pipe 9, achieving further cooling.

[0025] This enclosed cab solves the problems of dust intrusion and pollution during driver entry and exit, as well as poor temperature regulation inside the cab, ensuring the health of the driver, the stable operation of the equipment, and a comfortable working environment.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A closed cab for a large-tonnage underground loader, comprising a floor plate (1), a closed cab (2) disposed on the upper side of the floor plate (1), and an internal door (3) disposed on one side of the closed cab (2), characterized in that, It also includes a dust treatment housing (4) located on the upper side of the base plate (1) and connected to one side of the enclosed cab (2), an outer door (5) located on one side of the dust treatment housing (4) and corresponding to the inner door (3), an air cooling mechanism (6) and a multi-stage dust removal mechanism (24) located on the upper side of the dust treatment housing (4) and spaced apart, a dust inlet pipe (12) connected to the air inlet port of the multi-stage dust removal mechanism (24), a dual-channel flow control assembly connected to the air outlet port of the air cooling mechanism (6), and a connecting pipe (17) connected to the air outlet port of the multi-stage dust removal mechanism (24) and the air inlet port of the air cooling mechanism (6); the two air outlet ports of the dual-channel flow control assembly are respectively connected to the other side of the enclosed cab (2) and the bottom of one side of the dust treatment housing (4); one end of the dust inlet pipe (12) penetrates the upper side of the dust treatment housing (4) and extends into the interior of the dust treatment housing (4).

2. The enclosed driver's cab according to claim 1, characterized in that, The multi-stage dust removal mechanism (24) includes a filter housing (11) located on the upper side of the dust treatment housing (4), a fan (16), an activated carbon filter plate (15), a second dust filter (14), and a first dust filter (13) arranged sequentially inside the filter housing (11). The first dust filter (13) corresponds to the air inlet port of the filter housing (11), the fan (16) corresponds to the air outlet port of the filter housing (11), one end of the dust inlet pipe (12) is connected to the air inlet port of the filter housing (11), and one end of the connecting pipe (17) is connected to the air outlet port of the filter housing (11).

3. The enclosed driver's cab according to claim 2, characterized in that, The air cooling mechanism (6) includes a cooling shell (18) on the upper side of the dust treatment shell (4), a semiconductor cooling chip (19) passing through the upper side of the cooling shell (18), a cooling aluminum plate (25) located at the cold end of the semiconductor cooling chip (19) and inside the cooling shell (18), and a plurality of metal cold plates (20) arranged at intervals on the lower side of the cooling aluminum plate (25). The other end of the connecting pipe (17) is connected to the air inlet port of the cooling shell (18).

4. The enclosed driver's cab according to claim 3, characterized in that, The dual-channel flow control assembly includes an air circulation pipe (7) connected to the air outlet of the cooling housing (18), a cooling air inlet pipe (9) connected to the outer wall of the air circulation pipe (7), a second electrically controlled valve (10) provided on the cooling air inlet pipe (9) section, and a first electrically controlled valve (8) provided on the air circulation pipe (7) section and corresponding to the air inlet port of the cooling air inlet pipe (9). One end of the cooling air inlet pipe (9) is connected to the other side of the closed cab (2), and one end of the air circulation pipe (7) is connected to the bottom of one side of the dust treatment housing (4).

5. The enclosed driver's cab according to claim 4, characterized in that, A temperature sensor (23) is provided on one side of the interior of the closed cab (2), and a dust concentration sensor (21) and a PLC controller (22) are provided on one side of the interior of the dust treatment housing (4). The fan (16), the semiconductor cooling chip (19), the first electric control valve (8), the second electric control valve (10), the temperature sensor (23), and the dust concentration sensor (21) are all electrically connected to the PLC controller (22).

Images