Automatic circulating spraying maintenance trolley and control method

Abstract

The invention relates to the technical field of tunnel construction, and discloses an automatic circulation spraying maintenance trolley and a control method. The walking mechanism is used for driving the trolley to move and steer, and the walking mechanism comprises a driving walking device, a driven walking device and a steering electric cylinder; the driving mechanism is used for driving the trolley upper device, and the driving mechanism comprises a gear motor, a coupler and a chain driving system; the spraying device is arranged on the trolley and used for spraying water or a water-gas mixture, and the spraying device comprises a spraying pipeline, a nozzle and a sliding trolley. The spraying water amount, temperature and time are automatically adjusted through intelligent control, the curing effect is improved, the concrete quality is ensured, the equipment has the characteristics of energy conservation and high efficiency, a variable frequency water pump and a compressed air device are adopted, resource waste is avoided, manual intervention is reduced through automatic operation, the labor cost is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to an automatic circulation spraying maintenance trolley and a control method. Background Art

[0002] Tunnel secondary lining spray curing is an important part of tunnel construction. Its main purpose is to ensure the quality of secondary lining cement concrete during the curing stage and improve its strength, durability and crack resistance. Spray curing can effectively maintain the hydration reaction process of cement concrete through proper water supply, prevent the concrete surface from drying and cracking prematurely, and ensure the mechanical properties and durability of concrete.

[0003] At present, the tunnel secondary lining maintenance operation mainly adopts traditional spray maintenance equipment, usually including homemade simple benches or gantry spray maintenance trolleys. Although these equipment can meet basic maintenance needs, they have the following shortcomings; first, the existing spray maintenance equipment is mostly manually operated, and it is necessary to regularly check and manually start and stop the spray equipment. The operation process is cumbersome, and the spraying parameters cannot be automatically adjusted according to environmental conditions in real time. It is easily affected by human factors, resulting in unstable spraying effect and affecting the maintenance quality. In addition, the traditional spray system has the problem that the amount of spraying water cannot be accurately controlled and the spraying is uneven, resulting in insufficient maintenance in some areas, or excessive spraying, resulting in water resource waste and substandard construction quality. In addition, the existing spray maintenance equipment is mostly fixed or single-function equipment, which cannot adapt to the needs of different tunnel structures or cave types. Especially when facing tunnels with small sections or complex environments, the use of the equipment is limited and cannot provide efficient spray maintenance. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an automatic circulating spray maintenance trolley and a control method, which solves the problems of low intelligence, uneven spraying effect, frequent manual intervention and poor applicability in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic circulation spray curing trolley, comprising:

[0006] The main frame, which contains the supporting structure;

[0007] A traveling mechanism is used to drive the trolley to move and turn, and the traveling mechanism includes a driving traveling device, a driven traveling device and a steering electric cylinder;

[0008] A driving mechanism, used to drive the upper device of the trolley, the driving mechanism comprising a reduction motor, a coupling and a chain drive system;

[0009] A spraying device, arranged on the trolley and used for spraying water or a water-gas mixture, the spraying device comprising a spraying pipeline, a nozzle and a sliding trolley;

[0010] A water channel device, used to provide water and compressed air required for spraying, the water channel device includes a water tank device, a variable frequency water pump, a flow detection device and a compressed air device;

[0011] The electrical control system is used to control various components of the trolley. The electrical control system is connected to the ambient temperature and humidity sensor and can automatically adjust the spraying water volume, spraying temperature and moving speed according to real-time data.

[0012] Preferably, the chain drive system in the drive mechanism adopts a double-chain drive mode, which can achieve stable reciprocating motion; the spraying device includes multiple adjustable nozzles, which can adjust the spraying angle and water volume according to different needs; and the spraying pipeline is guided by a fixed slide rail, and the start and stop control is carried out in conjunction with a travel switch and a proximity switch.

[0013] Preferably, the water tank device in the water channel device is equipped with a temperature sensor and an electric heating component for adjusting the water temperature in real time according to the ambient temperature. The variable frequency water pump controls the water pump speed through an electrical control system and can adjust the spraying water volume according to demand.

[0014] Preferably, the electrical control system includes an intelligent module component that can collect and analyze environmental temperature and humidity data in real time, automatically adjust spraying parameters, and transmit data to a remote control center for recording and monitoring via a wireless communication module.

[0015] Preferably, the spraying device includes a plurality of adjustable fan-shaped nozzles, which can adjust the spraying range and spraying intensity according to demand, thereby realizing spraying operations in different construction areas.

[0016] Preferably, the platform railing includes a top platform and a fence, which can provide safety protection and facilitate people to go up and down through the inclined ladder design.

[0017] Preferably, the traveling mechanism of the trolley is equipped with an electric cylinder fixing seat and a plurality of sensors, which can detect the position and status of the equipment in real time and adjust the traveling speed and steering angle of the trolley according to the situation.

[0018] A control method for an automatic circulation spray curing trolley comprises the following steps:

[0019] Step 1: According to the ambient temperature and humidity in the tunnel, the electrical control system automatically determines the amount of water sprayed, the spraying temperature and the spraying time;

[0020] Step 2: Start the driving mechanism, control the walking mechanism and the steering cylinder, so that the spraying device automatically reaches the working position;

[0021] Step 3: According to the set spraying parameters, the spraying water volume and atomization effect are adjusted by controlling the water channel device, and the spraying device is automatically started to start the spraying operation;

[0022] Step 4: Monitor and feedback environmental data in real time through the temperature and humidity monitoring device, and automatically adjust the spraying parameters and equipment operating status according to the feedback data;

[0023] Step 5: After the spraying operation is completed, the spraying device automatically moves in the reverse direction to the initial position and stops working.

[0024] Preferably, the water spraying amount and atomization effect are achieved by adjusting the air compressor pressure in the compressed air device.

[0025] Preferably, the parameters of the spraying time, spraying water volume and spraying temperature can be recorded and transmitted to a remote monitoring center via wireless communication for subsequent analysis and optimization.

[0026] The present invention provides an automatic circulation spray curing trolley and a control method thereof. It has the following beneficial effects:

[0027] 1. The present invention integrates an environmental temperature and humidity monitoring device and an intelligent control system, which can automatically sense environmental changes in the tunnel and adjust the parameters of spraying water volume, spraying temperature, and spraying time in real time to ensure that the maintenance process is always in the best state. This intelligent control greatly improves the accuracy and consistency of the maintenance effect, avoids human errors in traditional manual operations, and improves the maintenance quality of the tunnel secondary lining concrete.

[0028] 2. The present invention adopts a variable frequency water pump and a compressed air device, which can accurately adjust the water flow and air pressure according to actual needs to avoid unnecessary waste of resources. At the same time, the intelligent control system can automatically adjust the spraying amount and spraying time according to changes in ambient temperature and humidity, thereby realizing efficient and energy-saving spraying operations, which not only reduces the waste of water resources and energy, but also reduces construction costs.

[0029] 3. The present invention significantly reduces the need for human intervention through automated control and intelligent sensing technology. The equipment can automatically complete the spraying process, and the operator only needs to perform simple settings and remote monitoring. This degree of automation reduces labor costs and the risk of human operational errors, thereby improving overall operational efficiency and safety.

[0030] 4. The spraying trolley of the present invention has multiple operation modes, including conventional spraying maintenance and atomization dust reduction functions, and can be widely used in tunnel construction of different specifications. According to the operation requirements, the equipment can adjust the spraying mode to adapt to different environments and working conditions. This one-machine-for-multiple-purpose feature improves the applicability of the equipment, reduces repeated investment in equipment, and improves construction efficiency.

[0031] 5. The present invention is equipped with an intelligent data acquisition system, which can record the key information of temperature and humidity data, spraying amount, and spraying time during the spraying process in real time, and upload the data to the remote monitoring platform through the wireless communication system, which enables management personnel to monitor the status of maintenance operations in real time, analyze data and make optimization adjustments to ensure construction quality and improve the level of intelligence of equipment management. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A perspective view of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the control box of the present invention.

[0034] Among them, 1. Main frame; 1-1. Column; 1-2. Diagonal brace; 1-3. Top platform; 1-4. Support rod; 1-5. Bottom beam; 1-6. Support seat; 2. Travel mechanism; 2-1. Driving travel device; 2-2. Driven travel device; 2-3. Steering cylinder; 2-4. Cylinder fixing seat; 3. Driving mechanism; 3-1. Fixed frame; 3-2. Driving chain; 3-3. Sprocket box; 3-4. Power device; 4. Spraying device; 4-1. Spraying pipeline; 4-2. Pipeline bracket; 4-3, mobile bracket; 4-4, sliding trolley; 4-5, mobile drag chain; 4-6, fixed slide rail; 5, waterway device; 5-1, water tank device; 5-2, variable frequency water pump; 5-3, flow detection device; 5-4, connecting PPR pipeline; 5-5, compressed air device; 6, platform railing; 6-1, bottom inclined ladder; 6-2, bottom platform railing; 6-3, middle inclined ladder; 6-4, middle platform railing; 6-5, top platform; 6-6, top fence; 7-1, electrical control system. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example:

[0037] Please see attached Figure 1 - Attachment Figure 2The embodiment of the present invention provides an automatic circulation spraying maintenance trolley and control method, which is mainly used in the spraying maintenance operation of the tunnel secondary lining. Through the intelligent control system and the precise spraying device, the spraying water volume, spraying temperature, spraying time and moving speed are automatically determined and adjusted to achieve efficient maintenance of the secondary lining cement concrete in tunnel construction. The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and implementation methods.

[0038] The automatic circulation spraying and curing trolley of the present invention is mainly composed of a main frame 1, a walking mechanism 2, a driving mechanism 3, a spraying device 4, a water channel device 5, a platform railing 6 and an electrical control system 7. Each part works in coordination to realize the automatic spraying and curing process through an intelligent control system.

[0039] The main frame 1 is the main supporting structure of the trolley, which is composed of columns 1-1, diagonal braces 1-2, top platforms 1-3, support rods 1-4, bottom beams 1-5 and support bases 1-6. All components are connected by bolts to ensure the stability and reliability of the structure. The main frame 1 provides support for each subsystem and ensures the stability of the equipment during movement.

[0040] The traveling mechanism 2 is responsible for driving the trolley to move in the tunnel, ensuring that the trolley can be accurately positioned on the working surface. The traveling mechanism includes:

[0041] Driving walking device 2-1: It is composed of a reduction motor, a sprocket and a chain, and provides driving force for the trolley.

[0042] Driven walking device 2-2: works with the driving walking device to realize the movement of the trolley through chain transmission.

[0043] Steering cylinder 2-3: controls the steering of the trolley to adapt to different travel paths in the tunnel.

[0044] Steering electric cylinder fixing seat 2-4: used to fix the steering electric cylinder and ensure its stable operation.

[0045] The traveling mechanism 2 enables the trolley to move precisely and controls the steering of the trolley through the steering electric cylinder, ensuring that the equipment can be flexibly operated in the tunnel.

[0046] The driving mechanism 3 is mainly used to drive the reciprocating motion of the upper device of the trolley, such as the spraying device. Its structure includes:

[0047] The fixed frame 3-1 is fixed on the trolley and is used to support the entire driving system.

[0048] The driving chain 3-2 transmits power through the reduction motor 3-4 and the sprocket box 3-3, and the driving chain realizes the reciprocating motion of the spraying device.

[0049] The sprocket box 3-3 is used to carry the chain, and drives the sliding trolley 4-4 of the spraying device to move through the forward and reverse motion of the chain.

[0050] The driving mechanism 3 adopts a double chain system, which can ensure that the reciprocating motion of the equipment is more stable and avoid the instability caused by a single chain.

[0051] The spraying device 4 is the core part of the present invention, which is responsible for performing the spraying operation and ensuring the uniformity and efficiency of the spraying. Its main components include:

[0052] The spraying pipeline 4-1 is made of stainless steel and is provided with an adjustable nozzle 4-2 and a fixed arc-shaped rectangular tube, which can adjust the spraying water flow.

[0053] The pipe bracket 4-3 supports the pipe to ensure its stable installation.

[0054] The sliding trolley 4-4 is driven by a chain to realize the movement of the spraying pipeline.

[0055] The fixed slide rails 4-6 are used to guide the sliding trolley, and the automatic start, stop and reverse movement are realized through the installed travel switch and proximity switch.

[0056] The spraying device is designed with a flexible movement mode, which drives the spraying pipeline to move back and forth in the tunnel through a sliding trolley to ensure uniform coverage of the spraying area.

[0057] The water channel device 5 provides the water source and compressed air required for spraying, ensuring precise control of the spraying effect. Its main components include:

[0058] Water tank device 5-1: used to store water for spraying, and equipped with high and low liquid level gauges and temperature sensors to monitor water level and water temperature in real time.

[0059] Variable frequency water pump 5-2: The water pump speed is adjusted through the electrical control system to accurately control the water flow according to actual needs.

[0060] Flow detection device 5-3: monitors water flow in real time to ensure the accuracy of spraying amount.

[0061] Compressed air device 5-5: includes a piston compressor, air pipelines and control valves, which are used to provide the compressed air required for spraying, improve the spraying effect and increase the atomization effect.

[0062] The optimized design of the water channel device enables the trolley to adjust the water volume, air pressure and water temperature according to different environmental requirements, thereby achieving more precise spraying and maintenance.

[0063] The electrical control system 7 is the "brain" of the entire equipment and is responsible for controlling the operation of each component of the vehicle. Its main functions include:

[0064] Collect temperature and humidity data: Use the environmental temperature and humidity sensor 7-2 to monitor the temperature and humidity inside the tunnel in real time.

[0065] Automatically adjust spraying parameters: automatically adjust spraying water volume, water temperature and spraying time according to the collected environmental data.

[0066] Data recording and remote transmission: Through the built-in intelligent module, various data during the spraying process are collected, and the data is transmitted to the remote monitoring center in real time through the wireless communication module for data storage and analysis.

[0067] Control equipment operation status: control the movement of the trolley, the movement of the spraying device, and the start and stop of the water pump through electrical components.

[0068] The intelligence of the electrical control system enables the equipment to dynamically adjust various operations based on real-time data, greatly improving the degree of automation of the equipment.

[0069] Specific operation process

[0070] Initial preparation

[0071] Before spraying maintenance, the operator starts the equipment by remote control or manually. First, the travel mechanism 2 is started to drive the trolley to the predetermined operation position. The trolley adjusts the travel speed and steering angle according to the specific requirements of the tunnel.

[0072] Temperature and humidity monitoring and data collection

[0073] During the operation, the electrical control system 7 collects the temperature and humidity data in the tunnel in real time through the temperature and humidity monitoring device installed on the top of the trolley, and judges the current environmental conditions through the data analysis module. If the environmental conditions change, the system will automatically adjust the spraying water volume, temperature and atomization effect to meet different maintenance needs.

[0074] Spraying operation

[0075] Once the trolley reaches the working position, the driving mechanism 3 starts, driving the sliding trolley 4-4 of the spraying device 4 to automatically reciprocate along the fixed slide rail 4-6 in the tunnel. During this process, the waterway device 5 adjusts the water flow through the variable frequency water pump 5-2 to ensure accurate control of the spraying water volume and temperature. At the same time, the compressed air device 5-5 uses compressed air to coordinate the water flow for spraying and atomization, ensuring uniform coverage of water droplets and improving the spraying effect.

[0076] Data logging and remote monitoring

[0077] After the equipment completes the spraying operation, all data such as water temperature, water volume, spraying time, etc. will be recorded in real time through the electrical control system 7 and transmitted to the remote monitoring center through wireless communication. The operator can view various data in the remote monitoring system and conduct real-time analysis and optimization adjustments.

[0078] Automatic reverse movement

[0079] After the spraying operation is completed, the spraying device 4 automatically moves in the reverse direction to the original position. When the sliding trolley 4-4 triggers the travel switch, the system automatically reverses and restarts the spraying process to ensure that the entire tunnel maintenance area is fully covered.

[0080] Working principle: After the equipment is started, the operator starts the travel mechanism, including the driving travel device and the driven travel device, through the remote control or other control methods to move the trolley to the predetermined position in the tunnel. The process is controlled by the steering cylinder to realize the steering of the trolley and ensure that the equipment can flexibly adjust the driving direction. After reaching the working position, the electrical control system collects the ambient temperature and humidity data in the tunnel in real time through the temperature and humidity monitoring device located on the top of the fixed frame, and automatically determines whether the spraying parameters need to be adjusted based on the comparison of the collected data with the preset parameters.

[0081] According to the temperature and humidity data, the electrical control system automatically controls the variable frequency water pump in the water device to adjust the water flow, and provides compressed air through the compressed air device to enhance the atomization effect of the water mist, ensuring the precise control of the spraying water volume and water temperature. The spraying device is controlled by the drive mechanism, and the sliding trolley drives the spraying pipeline to reciprocate to ensure that the sprayed water mist is evenly covered on the surface of the secondary lining concrete. The two ends of the fixed slide rail are equipped with travel switches. When the spraying device reaches the end of the slide rail, the switch signal is triggered, and the control system issues a stop and reverse command. The spraying device starts to move in the reverse direction and performs automatic cycle spraying.

[0082] During the entire spraying process, the electrical control system monitors the temperature and humidity data in real time and compares it with the preset parameters, dynamically adjusting the spraying water volume, spraying temperature, spraying time and other parameters to ensure the best maintenance effect. The water channel device uses high and low level gauges and temperature sensors to ensure that the spraying water temperature is within the set range to avoid the water temperature being too low or too high affecting the maintenance effect. At the same time, the spraying device can choose to spray only water or spray a mixture of water and gas as needed to improve the spraying effect.

[0083] After spraying is completed, the equipment will automatically record the relevant parameters of each spraying process (such as spraying time, water volume, temperature and humidity, etc.), and upload the data to the monitoring center through remote wireless transmission for operators to view and analyze. The entire process realizes full intelligent control, reduces manual intervention, improves the efficiency and accuracy of spraying maintenance operations, and ensures the maintenance quality of the tunnel secondary lining concrete.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic circulation spray curing trolley, characterized in that: include: A main frame (1), including a supporting structure; A walking mechanism (2) is used to drive the trolley to move and turn, and the walking mechanism (2) comprises a driving walking device (2-1), a driven walking device (2-2) and a steering electric cylinder (2-3); A driving mechanism (3) for driving the upper device of the trolley, wherein the driving mechanism (3) comprises a reduction motor (3-4), a coupling (3-5) and a chain drive system (3-2); A spraying device (4) is arranged on the trolley and is used for spraying water or a water-gas mixture, wherein the spraying device (4) comprises a spraying pipeline (4-1), a nozzle (4-2) and a sliding trolley (4-4); A water channel device (5) is used to provide water and compressed air required for spraying, and the water channel device (5) comprises a water tank device (5-1), a variable frequency water pump (5-2), a flow detection device (5-3) and a compressed air device (5-5); The electrical control system (7-1) is used to control various components of the vehicle. The electrical control system (7-1) is connected to an environmental temperature and humidity sensor and can automatically adjust the spraying water volume, spraying temperature and moving speed according to real-time data.

2. The automatic circulation spray curing trolley according to claim 1, characterized in that: The chain drive system (3-2) in the driving mechanism (3) adopts a double-chain drive mode, which can achieve stable reciprocating motion; the spraying device (4) includes a plurality of adjustable nozzles (4-2), which can adjust the spraying angle and water volume according to different needs; and the spraying pipeline (4-1) is guided by a fixed slide rail (4-6) and starts and stops in conjunction with a travel switch and a proximity switch.

3. The automatic circulation spray curing trolley according to claim 1, characterized in that: The water tank device (5-1) in the water channel device (5) is equipped with a temperature sensor (5-1-1) and an electric heating component (5-1-2) for adjusting the water temperature in real time according to the ambient temperature. The variable frequency water pump (5-2) controls the water pump speed through an electrical control system (7-1) and can adjust the spraying water volume according to demand.

4. The automatic circulation spray curing trolley according to claim 1, characterized in that: The electrical control system (7-1) includes an intelligent module component that can collect and analyze environmental temperature and humidity data in real time, automatically adjust spraying parameters, and transmit the data to a remote control center for recording and monitoring via a wireless communication module.

5. The automatic circulation spray curing trolley according to claim 1, characterized in that: The spraying device (4) comprises a plurality of adjustable fan-shaped nozzles (4-2), which can adjust the spraying range and spraying intensity according to demand, thereby achieving spraying operations in different construction areas.

6. The automatic circulation spray curing trolley according to claim 1, characterized in that: The platform railing (6) comprises a top platform (6-5) and a fence (6-6), which can provide safety protection and facilitate people to go up and down through the inclined ladder design.

7. The automatic circulation spray curing trolley according to claim 1, characterized in that: The traveling mechanism (2) of the trolley is equipped with an electric cylinder fixing seat (2-4) and a plurality of sensors, which can detect the position and state of the equipment in real time and adjust the traveling speed and steering angle of the trolley according to the situation.

8. A control method for an automatic circulation spray curing trolley, according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: According to the ambient temperature and humidity in the tunnel, the electrical control system (7-1) automatically determines the amount of water to be sprayed, the spraying temperature and the spraying time; Step 2: Start the driving mechanism (3), control the walking mechanism (2) and the steering cylinder (2-3), and make the spraying device (4) automatically reach the working position; Step 3: According to the set spraying parameters, the spraying water volume and atomization effect are adjusted by controlling the water channel device (5), and the spraying device (4) is automatically started to start the spraying operation; Step 4: Monitor and feedback environmental data in real time through the temperature and humidity monitoring device (7-2), and automatically adjust the spraying parameters and equipment operating status according to the feedback data; Step 5: After the spraying operation is completed, the spraying device (4) automatically moves in the reverse direction to the initial position and stops working.

9. The automatic circulation spray curing trolley and control method according to claim 8, characterized in that: The water spraying amount and atomization effect are achieved by adjusting the pressure of the air compressor (5-5-1) in the compressed air device (5-5).

10. The automatic circulation spray curing trolley and control method according to claim 8, characterized in that: The parameters of the spraying time, spraying water volume and spraying temperature can be recorded and transmitted to a remote monitoring center via wireless communication for subsequent analysis and optimization.

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