Mining explosion-proof diesel engine concrete mixing truck

Abstract

The utility model relates to the technical field of mining transportation equipment, in particular to a mining explosion-proof diesel engine concrete mixing truck which comprises a truck frame assembly, a mixing tank and a cab, the mixing tank and the cab are located on the truck frame assembly, and the cab is located on the front portion of the truck frame assembly and arranged on one side in an offset mode. A feeding groove and a discharging groove of the stirring tank are located on the same side and are close to the cab, a transversely-arranged engine unit is arranged at the rearmost end of the upper portion of the frame assembly, and the problem that noise and high-temperature hot air affect the environment in the cab in the equipment working process can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining transportation equipment, in particular to an explosion-proof diesel engine concrete mixer transportation vehicle for mining. Background Art

[0002] Conventional JC4 series concrete mixer trucks have engines located below the concrete mixing tank and radiators located directly in front of the engines. The concrete inlet and outlet troughs are located above the engines, and leakage during inlet and outlet can easily block the engine cooling ports and radiator grilles, making it inconvenient to inspect the engine. Since the radiator is located at a short distance from the ground, there is a lot of water in the tunnels under the mine, which can easily cause water to overflow the radiator during driving, causing damage to the radiator.

[0003] The Chinese invention patent application with application publication number CN117799066A discloses a mining explosion-proof diesel engine concrete mixer truck, wherein the explosion-proof diesel engine assembly includes an explosion-proof diesel engine and a diesel engine radiator, wherein the explosion-proof diesel engine is connected to the frame assembly and is located on one side of the cab assembly, and the diesel engine radiator is connected to the frame assembly and is adjacent to the side of the cab assembly near the rear of the vehicle, and the explosion-proof diesel engine and the diesel engine radiator are connected through a pipeline. The above-mentioned disclosed solution solves the problem of leakage blocking the engine heat dissipation port and the radiator grille by changing the arrangement position of the explosion-proof diesel engine and the radiator, and at the same time, after the position of the radiator is raised, the problem of radiator damage caused by accumulated water overflowing the radiator is solved. However, in the above-mentioned disclosed solution, the explosion-proof diesel engine is located on the cab side, and the noise during the operation of the explosion-proof diesel engine affects the working comfort of the driver, and the arrangement mode of the radiator being located behind the cab, the high-temperature hot air dissipated by the engine directly affects the ambient temperature in the cab, bringing an uncomfortable working experience to the driver. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides an explosion-proof diesel engine concrete mixer transport truck for mining.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model discloses an explosion-proof diesel engine concrete mixer truck for mining, comprising a frame assembly, a mixing tank and a cab located on the frame assembly, wherein the cab is located at the front of the frame assembly and offset to one side, the feed trough and the discharge trough of the mixing tank are located on the same side and close to the cab, and a transversely arranged engine unit is provided at the rear end above the frame assembly.

[0006] Preferably, a hydraulic system radiator is provided between the engine unit and the mixing tank, the hydraulic system radiator is provided with a radiator fan driven by a hydraulic motor, and the engine unit provides power for the hydraulic motor.

[0007] Preferably, a protective cover is provided on the outside of the engine unit, and the protective cover is provided with openable inspection doors on the top and sides.

[0008] Preferably, the frame assembly includes a front axle, a rear axle and a frame, the front axle is a steering drive axle, the rear axle is a drive axle, the engine unit is provided with an explosion-proof electronic fuel injection engine and an engine radiator, and the explosion-proof electronic fuel injection engine drives a hydraulic pump to provide power to the front axle and the rear axle through a hydrostatic system.

[0009] Preferably, the hydraulic system radiator is located on one side of the cab, and a hydraulic oil tank for containing hydraulic oil is provided on the opposite side of the hydraulic system radiator.

[0010] Preferably, the vehicle frame is an integral welded structure, with a protective support member provided on the outside thereof, the protective support member and the vehicle frame are connected by welding, and leaf spring suspensions are provided between the front axle, the rear axle and the vehicle frame.

[0011] Preferably, the mixing tank is provided with a discharge valve plate at a position corresponding to the discharge trough, a hinge point is provided on the upper part of the discharge valve plate, and a material inlet cylinder for controlling the opening and closing of the discharge valve plate is provided on the lower part of the discharge valve plate, and the material inlet cylinder is horizontal, one end of which is hinged to the discharge trough, and the other end is hinged to the discharge valve plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. The engine unit is placed horizontally at the rear end of the frame assembly, away from the cab, avoiding the impact of engine noise and high temperature on the driver. The horizontal arrangement effectively shortens the length of the vehicle and facilitates the vehicle to drive in the lane; the hydraulic system radiator is located between the engine unit and the mixing tank, far away from the cab, further avoiding the impact of hot air generated during the heat dissipation of the hydraulic system on the ambient temperature in the cab, and improving the working comfort of the driver; the protective cover on the outside of the engine can effectively protect the engine to prevent rotating parts and high-temperature parts from causing accidental injuries to construction personnel, and its openable inspection door can also facilitate daily maintenance and inspection of the engine.

[0014] 2. In order to prevent the vehicle from being overweight and causing the risk of rollover, the radiator is located on the side of the cab and the hydraulic oil tank is installed on the co-pilot side. The weight of the hydraulic oil tank filled with hydraulic oil can balance the weight of the main driver's side caused by the total weight of the radiator and the cab, and prevent the center of gravity of the vehicle from being overweight on the left and right sides.

[0015] 3. The engine drives the hydraulic pump to provide power to the front and rear axles through the hydrostatic system. The driver can accelerate the vehicle by stepping on the accelerator pedal and decelerate the vehicle by releasing the accelerator pedal. The driver does not need to step on the clutch, which can reduce driver fatigue. At the same time, the material inlet cylinder that controls the opening and closing of the discharge valve plate is installed horizontally, which can effectively avoid blocking the driver's view of the right front of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional view of the passenger side of the overall structure of the utility model;

[0017] Figure 2 This is a three-dimensional view of the main driving side of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the position of the utility model when docking with the spraying pumping equipment;

[0019] Figure 4 It is a schematic diagram of the inlet and outlet sides of the stirring tank in the utility model;

[0020] Figure 5 It is a cross-sectional view of the discharge valve plate in the utility model.

[0021] In the figure, 1. mixing tank; 2. feed trough; 3. cab; 4. discharge trough; 5. engine unit; 6. protective cover; 601, inspection door; 7. hydraulic system radiator; 8. hydraulic motor; 9. radiator fan; 10. front axle; 11. rear axle; 12. protective support; 13. frame; 14. hydraulic oil tank; 15. frame assembly; 16. material inlet cylinder; 17. spraying pumping equipment; 18. hinge point; 19. discharge valve plate. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1 To Attachment Figure 5 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0023] A mining explosion-proof diesel engine concrete mixer truck, such as Figure 1-Figure 5As shown, it includes a frame assembly 15, a mixing tank 1 and a cab 3. In order to ensure the safety of the vehicle and the driver, the vehicle is also equipped with a lighting switching system, a blind spot camera, a reverse gear linkage system, a reversing image system, a driving recorder, a driver status recognition system, and a laser radar and data upload system that can detect obstacles in front, which are well known to those skilled in the art. The driver's driving status and vehicle operation data can be uploaded to the mining base station in a timely manner, so that the mining base station can timely and effectively control the driver and vehicle information to ensure safety. The vehicle is equipped with a personnel approach system, which is based on the underground UWB positioning principle to realize the personnel intrusion alarm function. When the staff enters the alarm area, the vehicle sends out an audible and visual alarm, and the identification card worn by the staff also sends out vibration and sound prompts. The personnel approach system is well known to those skilled in the art and will not be repeated here.

[0024] The frame assembly 15 includes a front axle 10, a rear axle 11 and a frame 13. The cab 3 is located at the front of the frame assembly 15 and is offset to one side. In this embodiment, the cab 3 is located at the main driving side of the front end of the frame assembly 15. A mixing tank 1 is installed on the frame assembly 15. The volume of the mixing tank 1 is 4m3. Its feed trough 2 and discharge trough 4 are located on the same side and close to the cab 3. Compared with the conventional cab 3 located on the center line, the frame 13 adopts a symmetrical design. In this embodiment, the frame 13 adopts an asymmetrical design, which can better complete the docking of the discharge trough 4 and the spraying pumping equipment 17. The height of the mixing tank 1 is reduced as much as possible to reduce the height of the whole vehicle to 2m, so as to meet the passage in the lower lanes, while ensuring that the height of the end of the discharge trough 4 is greater than 800mm from the ground and the horizontal angle with the ground meets 18°. The mixing tank 1 is provided with a discharge valve plate 19 at a position corresponding to the discharge trough 4, a hinge point 18 is provided on the upper part of the discharge valve plate 19, and a material inlet cylinder 16 for controlling the opening and closing of the discharge valve plate 19 is provided at the lower part of the discharge valve plate 19. In order to lower the position of the material inlet cylinder 16 and prevent it from blocking the driver's view of the right front of the vehicle, the material inlet cylinder 16 is horizontal, one end of which is hinged to the discharge trough 4, and the other end is hinged to the discharge valve plate 19.

[0025] A transversely arranged engine unit 5 is provided at the rear end above the frame assembly 15. The engine unit 5 is as far away from the cab 3 as possible to avoid the noise of the engine unit 5 when it is working. The engine unit 5 is arranged transversely to shorten the length of the entire vehicle, and the length of the entire vehicle is controlled at 7m, which is convenient for the passage of the entire vehicle. A protective cover 6 is provided on the outside of the engine unit 5. The protective cover 6 can not only further reduce noise, but also protect the engine unit 5 to avoid accidental damage to the construction personnel caused by rotating parts and high-temperature parts during operation. At the same time, the engine unit 5 is away from the feed trough 2 and the discharge trough 4 to prevent leakage from having adverse effects on the engine unit 5. In order to facilitate regular maintenance and inspection of the engine unit 5, the protective cover 6 is provided with an openable inspection door 601 on the top and side.

[0026] In order to meet the heat dissipation requirements of the hydraulic system, an independent hydraulic system radiator 7 is provided between the engine unit 5 and the mixing tank 1. In order to balance the load distribution on the main and co-driver sides of the vehicle and avoid the risk of rollover caused by unbalanced weight, the hydraulic system radiator 7 is arranged on one side of the cab 3. A hydraulic oil tank 14 containing hydraulic oil is arranged on the opposite side of the hydraulic system radiator 7. The weight of the hydraulic oil tank 14 filled with hydraulic oil can balance the unbalanced weight on the main driver's side caused by the total weight of the hydraulic system radiator 7 and the cab 3, and can prevent the center of gravity from being unbalanced on the left and right sides of the vehicle.

[0027] The hydraulic system radiator 7 is provided with a radiator fan 9 driven by a hydraulic motor 8, and the engine unit 5 drives a set of independent hydraulic units to provide power for the hydraulic motor 8 to realize heat dissipation of the entire hydraulic system.

[0028] The engine unit 5 is provided with an explosion-proof electronic fuel injection engine and an engine radiator. In the present embodiment, the engine radiator is located at the rear of the engine compared to the forward direction of the vehicle. The engine radiator can effectively bring the heat generated by the engine when it is working to the air through the coolant through the connecting pipeline, perform air heat exchange and cooling, and realize the cooling and heat dissipation of the cooling water and fuel when the engine unit 5 is working. The specific cooling and heat dissipation method when the engine is working is a technology well known to those skilled in the art, and will not be repeated here. The engine radiator and the hydraulic system radiator 7 are arranged away from the cab 3, which can effectively prevent the high-temperature hot air in the heat exchange process from generating heat radiation to the cab 3, thereby ensuring the working comfort of the driver.

[0029] In order to improve the grip and climbing ability of the equipment and meet the driving requirements of complex road conditions, the front axle 10 is configured as a steering drive axle, and the rear axle 11 is a drive axle. The explosion-proof electronic fuel injection engine driving hydraulic pump provided in the engine unit 5 provides power to the front axle 10 and the rear axle 11 through the static hydraulic system. The driver only needs to step on the accelerator pedal to achieve the operation of the vehicle from static to the highest driving speed, and the driver no longer needs to step on the clutch pedal to reduce driver fatigue. During auxiliary braking, the effect of deceleration braking can be achieved by simply releasing the accelerator pedal, which effectively reduces the frequency of use of the braking system, reduces the wear and heat of the braking system, and improves the life and safety of the braking system. In order to improve the safety performance of the whole vehicle, the service brake system adopted by this vehicle is a dual-circuit hydraulic brake. The brakes of the front axle 10 and the rear axle 11 are all controlled separately to avoid the vehicle brake failure caused by problems with the single-bridge brake. The parking brake is a failure-type spring brake to ensure that the vehicle can still be effectively parked without power. The dual-circuit hydraulic brake and the failure-type spring brake are technical knowledge well known to those skilled in the art and will not be repeated here. In order to improve the vehicle's ability to withstand strong impact and torsional forces, the frame 13 adopts an integral welded structure, and the protective support members 12 provided on the outside are connected to the frame 13 by welding. At the same time, leaf spring suspensions are provided between the front axle 10, the rear axle 11 and the frame 13, making the vehicle more sturdy and durable, and providing the driver with higher driving comfort.

[0030] During the operation, since the engine unit 5 and the hydraulic system radiator 7 are far away from the cab 3, the feed trough 2 and the discharge trough 4, it can not only avoid the influence of noise and high-temperature heat on the driving environment in the cab 3, but also avoid the feed trough 2 and the discharge trough 4 during the feeding and discharging process. The material drips onto the engine unit 5 and the hydraulic system radiator 7, causing malfunctions and affecting the normal operation of the engine unit 5 and the hydraulic system radiator 7.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mining explosion-proof diesel engine concrete mixer truck, comprising a frame assembly (15) and a mixing tank (1) and a cab (3) located on the frame assembly (15), characterized in that: The cab (3) is located in front of the frame assembly (15) and is offset to one side. The feed trough (2) and the discharge trough (4) of the mixing tank (1) are located on the same side and close to the cab (3). A transversely arranged engine unit (5) is provided at the rear end above the frame assembly (15).

2. The explosion-proof diesel engine concrete mixer truck for mining according to claim 1, characterized in that: A hydraulic system radiator (7) is provided between the engine unit (5) and the mixing tank (1), and the hydraulic system radiator (7) is provided with a radiator fan (9) driven by a hydraulic motor (8), and the engine unit (5) provides power for the hydraulic motor (8).

3. The explosion-proof diesel engine concrete mixer truck for mining according to claim 1, characterized in that: A protective cover (6) is provided outside the engine unit (5), and the protective cover (6) is provided with openable inspection doors (601) on the top surface and the side surfaces.

4. The explosion-proof diesel engine concrete mixer truck for mining according to claim 1, characterized in that: The frame assembly (15) comprises a front axle (10), a rear axle (11) and a frame (13); the front axle (10) is a steering drive axle; the rear axle (11) is a drive axle; the engine unit (5) is provided with an explosion-proof electronic fuel injection engine and an engine radiator; the explosion-proof electronic fuel injection engine drives a hydraulic pump to provide power to the front axle (10) and the rear axle (11) through a static hydraulic system.

5. The explosion-proof diesel engine concrete mixer truck for mining according to claim 2, characterized in that: The hydraulic system radiator (7) is located on one side of the cab (3), and a hydraulic oil tank (14) for containing hydraulic oil is provided on the opposite side of the hydraulic system radiator (7).

6. The explosion-proof diesel engine concrete mixer truck for mining according to claim 4, characterized in that: The vehicle frame (13) is an integral welded structure, and a protective support member (12) is provided on the outside thereof. The protective support member (12) and the vehicle frame (13) are connected by welding, and leaf spring suspensions are provided between the front axle (10), the rear axle (11) and the vehicle frame (13).

7. The explosion-proof diesel engine concrete mixer truck for mining according to claim 1, characterized in that: The mixing tank (1) is provided with a discharge valve plate (19) at a position corresponding to the discharge trough (4); a hinge point (18) is provided on the upper part of the discharge valve plate (19); a material inlet cylinder (16) for controlling the opening and closing of the discharge valve plate (19) is provided on the lower part of the discharge valve plate (19); the material inlet cylinder (16) is horizontal, one end of which is hinged to the discharge trough (4), and the other end of which is hinged to the discharge valve plate (19).

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