Plateau type concrete wet spraying machine

Abstract

The utility model relates to the technical field of concrete support construction equipment, and discloses a plateau type concrete wet spraying machine which comprises a chassis assembly, an upper assembly, a covering part assembly, a pumping system, an accelerator system, a lubricating system, a gas path system, a water path system, a hydraulic system, an electrical system and a label assembly. Hydraulic supporting legs are arranged at the four corners of the auxiliary frame, a rotary base, an electric control system, a hydraulic system, a concrete accelerator box, a pumping system, a metering system and an auxiliary material assembly are installed on the auxiliary frame, a rotary table body is arranged at the top of the rotary base, and a large arm is hinged to the top of the rotary table body. According to the utility model, by arranging the automobile power system, the electric control system, the hydraulic system, the large arm and the small arm, on one hand, the applicability can be improved, and by arranging the concrete conveying pipe, the high-pressure air conveying pipe and the additive conveying pipe, the working efficiency can be improved, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete support construction equipment, and in particular to a high-altitude concrete wet spraying machine. Background Technology

[0002] With the development and construction of western China, the number of tunnels and highways being excavated is increasing, and the use of wet shotcrete machines is becoming more and more widespread. The working principle of a wet shotcrete machine is to use hydraulic pressure to transport pre-mixed concrete through pipelines to the nozzle of the shotcrete machine. Concrete additives are added at the nozzle in a specific ratio, and then compressed air is used to spray the mixture at high speed onto the surface to be sprayed, where it hardens and forms a concrete support layer. Shotcrete technology, with its simple process and economical cost, has been widely used in tunnel engineering, highway engineering, and slope protection construction.

[0003] Western my country is a plateau region with an average altitude of over 4,000 meters. Currently used small handheld sprayers, automobile chassis wet sprayers, and special engineering chassis wet sprayers have problems when used in plateau environments, such as weak climbing and passing ability, easy boiling of water in chassis radiators, insufficient power of the power system, easy paint peeling, easy overheating of hydraulic oil, reduced efficiency of hydraulic system, and easy short circuit damage of electrical system components. Therefore, a high-altitude concrete wet sprayer is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-altitude concrete wet spraying machine, which aims to improve the existing technology when used in high-altitude environments, which has problems such as weak climbing and passing ability, easy boiling of water in the chassis radiator, insufficient power of the power system, easy paint peeling, easy excessive hydraulic oil temperature, reduced hydraulic system efficiency, and easy short circuit damage of electrical system components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-altitude concrete wet spraying machine includes a chassis assembly, a superstructure assembly, a cover assembly, a pumping system, an accelerator system, a lubrication system, an air system, a water system, a hydraulic system, an electrical system, and a sign assembly. A subframe is provided on the top of the chassis assembly, and hydraulic outriggers are provided at the four corners of the subframe. A slewing base, an electrical control system, a hydraulic system, a concrete accelerator tank, a pumping system, a metering system, and an auxiliary material assembly are installed on the subframe.

[0007] As a further description of the above technical solution:

[0008] The top of the slewing base is provided with a turntable body, and the top of the turntable body is hinged with a boom. The boom and the turntable body are connected by a boom pitching cylinder.

[0009] As a further description of the above technical solution:

[0010] The other end of the boom is provided with a forearm base, and a forearm pitch cylinder is provided between the boom and the forearm base. The forearm pitch cylinder is hinged to the boom and the forearm base respectively through two connecting rods.

[0011] As a further description of the above technical solution:

[0012] The forearm base is provided with a forearm fixing section at the top, and a first forearm telescopic section is inserted into one end of the forearm fixing section, and a second forearm telescopic section is inserted into the first forearm telescopic section.

[0013] As a further description of the above technical solution:

[0014] The ends of the first and second telescopic sections of the forearm are provided with lifting rings, and the lifting rings are provided with pull ropes for fixing the concrete delivery pipe, the high-pressure air delivery pipe and the concrete quick-setting agent delivery pipe.

[0015] As a further description of the above technical solution:

[0016] The working end of the second telescopic section of the forearm is equipped with a nozzle device, which includes a concrete buffer pipe and a concrete delivery pipe passing through the concrete buffer pipe and connected to the nozzle.

[0017] As a further description of the above technical solution:

[0018] The nozzle device is provided with high-pressure air holes and concrete additive holes on both sides, and the high-pressure air holes and concrete additive holes are respectively connected to the high-pressure air delivery pipe and the concrete quick-setting agent delivery pipe.

[0019] As a further description of the above technical solution:

[0020] The pumping system, accelerator system, lubrication system, air system, water system, hydraulic system, and electrical system are electrically connected.

[0021] This utility model has the following beneficial effects:

[0022] In this utility model, by setting up an automotive power system, an electronic control system, a hydraulic system, a boom, and a forearm, the applicability can be improved. By setting up concrete delivery pipes, high-pressure air delivery pipes, and additive delivery pipes, the work efficiency can be improved and the device can be made more convenient to use. Attached Figure Description

[0023] Figure 1 This is a front view of a high-altitude wet concrete spraying machine proposed in this utility model;

[0024] Figure 2 This is a top view of a high-altitude wet concrete spraying machine proposed in this utility model;

[0025] Figure 3 This is a side view of a high-altitude concrete wet spraying machine proposed in this utility model.

[0026] Legend:

[0027] 1. Chassis assembly; 2. Upper body assembly; 3. Cover assembly; 4. Pumping system; 5. Accelerator system; 6. Lubrication system; 7. Air system; 8. Water system; 9. Hydraulic system; 10. Electrical system; 11. Signage assembly. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-3This utility model provides an embodiment of a high-altitude concrete wet spraying machine, comprising a chassis assembly 1, an upper structure assembly 2, a cover assembly 3, a pumping system 4, a quick-setting agent system 5, a lubrication system 6, an air system 7, a water system 8, a hydraulic system 9, an electrical system 10, and a sign assembly 11. A subframe is mounted on the top of the chassis assembly 1, with hydraulic outriggers at its four corners. A slewing base, an electrical control system, a hydraulic system 9, a concrete quick-setting agent tank, a pumping system 4, a metering system, and an auxiliary material assembly are mounted on the subframe. A turntable body is mounted on the top of the slewing base, and a boom is hinged to the top of the turntable body. The boom and the turntable body are connected by a boom tilting cylinder. A forearm base is mounted at the other end of the boom, and a forearm tilting cylinder is installed between the boom and the forearm base. The forearm tilting cylinder is hinged to the boom and the forearm base via two connecting rods. Next, a forearm fixing section is provided at the top of the forearm base. A first forearm telescopic section is inserted inside one end of the forearm fixing section, and a second forearm telescopic section is inserted inside the first forearm telescopic section. Lifting rings are provided at the ends of the first and second forearm telescopic sections. Pull ropes for fixing the concrete delivery pipe, high-pressure air delivery pipe, and concrete accelerator delivery pipe are provided on the lifting rings. A nozzle device is provided at the working end of the second forearm telescopic section. The nozzle device includes a concrete buffer pipe. The concrete delivery pipe passes through the concrete buffer pipe and is connected to the nozzle. High-pressure air holes and concrete additive holes are provided on both sides of the nozzle device. The high-pressure air holes and concrete additive holes are connected to the high-pressure air delivery pipe and the concrete accelerator delivery pipe, respectively. The pumping system 4, accelerator system 5, lubrication system 6, air system 7, water system 8, hydraulic system 9, and electrical system 10 are electrically connected.

[0030] This machine weighs 20.5 tons and uses a 129kW Yuchai engine. Even when operating at an altitude of around 4000 meters, with a 20% engine power reduction, it can still meet the power requirements of a typical wet spraying machine. Equipped with a high-power engine, this machine has a climbing ability of 40%, a ground clearance of 470mm, an approach angle of 24°, a departure angle of 17°, and is equipped with 90kW power, a rated pressure of 0.7bar, and a 20m... 3The high-power air compressor with a displacement of [missing information] / min ensures maximum reliability and safety even in high-altitude environments with thin air. This equipment employs a dual-power system: electric operation plus diesel emergency power. Normal operation is powered by an external power source via a cable reel. In emergencies, the engine provides power for outrigger extension and retraction, boom telescopic rotation, nozzle operation, pumping of accelerators, pumping of accelerators and pipelines, and vehicle washing. The chassis assembly 1 provides robust support and flexible mobility for the entire concrete spraying truck. Driven by the onboard power system, the chassis ensures stable driving and precise positioning. Upon arrival at the construction site, the hydraulic outriggers extend and secure, allowing for rapid adaptation to various complex terrains and ensuring stability and safety in different operating environments. The efficient arrangement of the hydraulic outriggers significantly enhances the equipment's operational adaptability, laying a solid foundation for subsequent operations. The hydraulic system 9, as the core power source, drives the extension of the hydraulic outriggers, the rotation of the slewing base, the pitching motion of the boom and forearm, and the telescopic movement of the forearm through hydraulic pipelines. The high-precision control of the hydraulic system 9 not only improves the response speed of operation but also ensures the positioning accuracy and maneuverability of the nozzles in high-altitude and confined environments. The slewing base mounted on the subframe supports the turntable body's 360° free rotation via an efficient rotating mechanism. The boom on the turntable body achieves stable up-and-down swinging through boom pitch cylinders, adapting to construction needs and avoiding spraying deviations caused by large-scale swinging. The other end of the boom is connected to the boom base via boom pitch cylinders and a linkage mechanism. The boom base drives the boom fixed section, the first telescopic section, and the second telescopic section, realizing the multi-stage telescopic function of the boom. This design ensures a wider operating range and more flexible movement for the spraying device, allowing it to accurately reach the target point even in confined construction areas, thereby improving the uniformity of the spraying effect and the overall construction efficiency. The pumping system 4, as a key piece of equipment for concrete delivery, uses a pumping structure to transport concrete through concrete delivery pipes to the nozzle device. The concrete buffer pipe at the end of the nozzle device plays a crucial pressure buffering role, effectively balancing pressure fluctuations in the concrete during transportation. This ensures the concrete is sprayed onto the target construction surface in a uniform and stable flow state, significantly improving spraying quality and reducing the risk of concrete accumulation or waste. The accelerator system 5, through precise metering control, delivers the accelerator to the nozzle device via the concrete accelerator delivery pipe and precisely sprays it through the additive orifice, quickly mixing with the concrete at the nozzle. The addition of the accelerator not only accelerates the solidification of the concrete but also effectively enhances the structural strength of the construction surface, ensuring a more efficient construction process and more durable and reliable results. The high-pressure air system delivers compressed air to the high-pressure air orifice of the nozzle device through the high-pressure air delivery pipe, providing powerful atomization capabilities and delivery power.During spraying, the high-pressure air works in perfect harmony with the concrete and accelerator to achieve the optimal balance between concrete fluidity and adhesion. The electrical system 10 serves as the control center of the entire equipment, achieving automated and intelligent control of the entire vehicle through electrical connections with key subsystems such as the hydraulic system 9, pumping system 4, and accelerator system 5. Operators can centrally manage each component via the electrical control system, quickly adjusting spraying parameters, boom movements, and power output to ensure efficient and safe operation under various construction conditions. The precise control of the electrical system also reduces the risk of human error and improves the overall reliability of the construction. A nozzle device is installed at the end of the second telescopic section of the boom. This device integrates concrete spraying, high-pressure air spraying, and accelerator spraying functions. Concrete and accelerator mix rapidly at the nozzle and are efficiently sprayed onto the construction surface using the atomization effect of the high-pressure air, forming a uniform and dense covering layer to ensure rapid solidification and reaching the design strength. Furthermore, the precise design of the nozzle device reduces waste of concrete and accelerator, thereby lowering construction costs. The auxiliary assembly integrates lubricating materials, cleaning equipment, and other maintenance accessories, not only improving the operational stability of the equipment but also providing reliable support for routine maintenance and special construction needs. The application of the auxiliary assembly significantly extends the service life of the equipment and effectively reduces downtime for maintenance. This concrete spraying truck, through the coordinated work of various modules such as the chassis system, hydraulic system 9, pumping system 4, and electrical system 10, combined with the efficient accelerator and high-pressure air auxiliary function, achieves efficient, precise, and reliable concrete spraying operations. It can be widely applied to various complex construction scenarios such as tunnels and mines, providing strong support for high-quality engineering construction.

[0031] Working Principle: The chassis assembly 1 provides support and mobility for the entire concrete spraying truck. The chassis is driven by the onboard power system, enabling vehicle movement and positioning. Upon arrival at the work site, the hydraulic outriggers extend and secure the equipment, ensuring stability on complex terrain. The hydraulic system 9 provides the main power source, driving the extension of the hydraulic outriggers, the rotation of the slewing base, and the pitching and telescopic movements of the boom and forearm via hydraulic lines. Precise control of the hydraulic system 9 ensures the nozzle can quickly and stably reach the target position. The slewing base mounted on the subframe supports 360° rotation of the turntable body. The boom on the turntable body swings up and down via boom pitch cylinders. The other end of the boom is connected to the forearm base via forearm pitch cylinders and a linkage mechanism. The forearm base drives the forearm fixed section, the first telescopic section, and the second telescopic section, achieving multi-stage boom extension and retraction, allowing the nozzle device to flexibly reach the construction area. The pumping system 4 delivers concrete to the nozzle device through concrete delivery pipes. The concrete buffer pipe at the end of the nozzle device acts as a pressure buffer, ensuring uniform concrete flow and smooth spraying. The accelerator system 5 delivers the accelerator to the nozzle device through the concrete accelerator delivery pipe and sprays it through the additive orifice, mixing with the concrete to accelerate its setting. The high-pressure air system delivers compressed air to the high-pressure air orifice of the nozzle device through the high-pressure air delivery pipe, providing atomization and power support, thereby optimizing the concrete spraying effect. The electrical system 10 is responsible for the overall control and coordination of the equipment. Through electrical connections with the hydraulic system 9, pumping system 4, and accelerator system 5, it achieves automated and precise operation of the spraying operation. Operators centrally control each component through the electrical control system to ensure efficient and safe operation. The nozzle device is installed at the end of the second telescopic section of the boom, and its working end integrates concrete spraying, high-pressure air spraying, and accelerator spraying functions. Concrete and quick-setting agent are rapidly mixed at the nozzle and sprayed onto the construction surface using the atomization effect of high-pressure air, ensuring uniform coverage and rapid solidification. The auxiliary assembly integrates accessories for daily maintenance and special construction needs, such as lubricating materials and cleaning equipment, improving the stability and maintainability of equipment operation.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A high-altitude concrete wet spraying machine, comprising a chassis assembly (1), a superstructure assembly (2), a cover assembly (3), a pumping system (4), a quick-setting agent system (5), a lubrication system (6), an air system (7), a water system (8), a hydraulic system (9), an electrical system (10), and a sign assembly (11), characterized in that: The chassis assembly (1) is provided with a subframe on top, and hydraulic outriggers are provided at the four corners of the subframe. The subframe is equipped with a slewing base, an electrical control system, a hydraulic system, a concrete quick-setting agent tank, a pumping system, a metering system, and an auxiliary material assembly.

2. The high-altitude concrete wet spraying machine according to claim 1, characterized in that: The top of the slewing base is provided with a turntable body, and a boom is hinged to the top of the turntable body. The boom and the turntable body are connected by a boom pitching cylinder.

3. A high-altitude concrete wet spraying machine according to claim 2, characterized in that: The other end of the boom is provided with a forearm base, and a forearm pitch cylinder is provided between the boom and the forearm base. The forearm pitch cylinder is hinged to the boom and the forearm base respectively through two connecting rods.

4. A high-altitude concrete wet spraying machine according to claim 3, characterized in that: The forearm base is provided with a forearm fixing section at the top. A first forearm telescopic section is inserted into one end of the forearm fixing section, and a second forearm telescopic section is inserted into the first forearm telescopic section.

5. A high-altitude concrete wet spraying machine according to claim 4, characterized in that: The ends of the first and second telescopic sections of the forearm are equipped with lifting rings, and the lifting rings are equipped with pull ropes for fixing the concrete delivery pipe, the high-pressure air delivery pipe and the concrete quick-setting agent delivery pipe.

6. A high-altitude concrete wet spraying machine according to claim 5, characterized in that: The working end of the second telescopic section of the forearm is equipped with a nozzle device, which includes a concrete buffer pipe, through which a concrete delivery pipe passes and is connected to the nozzle.

7. A high-altitude concrete wet spraying machine according to claim 6, characterized in that: The nozzle device is provided with high-pressure air holes and concrete additive holes on both sides, and the high-pressure air holes and concrete additive holes are respectively connected to the high-pressure air delivery pipe and the concrete quick-setting agent delivery pipe.

8. A high-altitude concrete wet spraying machine according to claim 1, characterized in that: The pumping system (4), the quick-setting agent system (5), the lubrication system (6), the air system (7), the water system (8), the hydraulic system (9), and the electrical system (10) are electrically connected.

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