Tunnel maintenance engineering vehicle

Abstract

The embodiment of the present application provides a tunnel maintenance engineering vehicle, comprising: a vehicle frame; the vehicle frame is provided with a mechanical operation area, the mechanical operation area includes a first operation area and a second operation area; the first operation area is provided with at least two first installation stations, each of which is provided with a fixing component, the fixing component is used to fix a spray material tray or a waste box for containing tunnel demolition waste; the second operation area is provided with at least one second installation station, each of which is provided with the fixing component and a fixing interface for fixing a cleaning machine. The tunnel maintenance engineering vehicle provided by the embodiment of the present application can meet the needs of tunnel demolition, cleaning and spraying and has high flexibility.

Description

Technical Field

[0001] The present application relates to railway maintenance equipment technology, and in particular to a tunnel maintenance engineering vehicle. Background Art

[0002] In recent years, my country's urban rail transit has flourished and achieved remarkable results. A well-connected urban and intercity rail transit network has been built. As of the end of 2020, the total length of urban rail transit lines in operation in my country has reached 7,978 kilometers. Due to the different ages of the built rail facilities, and the limitations of the survey methods, design technical standards and construction technology levels at the time, after years of operation, most tunnels have begun to have different types of defects or diseases that affect the safe operation of urban rails, such as leakage, voids, and local loosening of concrete. Timely maintenance of urban rail transit infrastructure is required to ensure the safe operation of rail lines.

[0003] After a certain degree of local demolition work is carried out on the existing rail transit tunnel wall leakage, concrete voids, loose concrete and other locations, the demolition locations need to be flushed and moistened before re-coating with concrete mortar. It is understood that for the flushing and concrete re-coating construction of the demolition site, most of them are currently carried out by means of high-pressure water guns and concrete mortar spraying machines on rail flatbed vehicles, which are towed into the construction area by special traction vehicles. Due to the width limitation of the rail flatbed vehicles, the positions of personnel operating water guns and spraying guns are limited, and it is difficult to ensure the accuracy of flushing at the demolition site and the cleanliness of the broken concrete flushing. It is also difficult to control the spraying thickness and quality of concrete mortar far away from the tunnel wall. In addition, rail flatbed vehicles cannot travel by themselves and need to be towed by special vehicles. They have poor flexibility in use, and the engine noise and exhaust pollution of the traction vehicles also pose a great threat to the physical and mental health of tunnel construction personnel. Summary of the invention

[0004] In order to solve one of the above technical defects, the present application provides a tunnel maintenance engineering vehicle in an embodiment, comprising: a frame; the frame is provided with a mechanical operation area, the mechanical operation area includes a first operation area and a second operation area;

[0005] The first operation area is provided with at least two first installation stations, each of which is provided with a fixing assembly, the fixing assembly being used to fix a spray material tray or a waste box for containing tunnel demolition waste;

[0006] The second operating area is provided with at least one second installation station, and each second installation station is provided with the fixing component and a fixing interface for fixing the cleaning machine.

[0007] The technical solution provided in the embodiment of the present application is provided with a mechanical working area on the vehicle frame, and the mechanical working area includes a first working area and a second working area; the first working area is provided with at least two first installation stations, each of which is provided with a fixing component, and the fixing component is used to fix a spray paint pallet or a waste box for containing tunnel demolition waste; the second working area is provided with at least one second installation station, each of which is provided with the fixing component and a fixing interface for fixing a cleaning machine, and the spray paint pallet or the waste box can be fixed on the first installation station according to the operation needs to perform spraying or demolition operations; the spray paint pallet, the waste box or the cleaning machine can also be fixed on the second installation station according to the needs to perform spraying, demolition or cleaning operations, which has high flexibility and enables one engineering vehicle to realize multiple tunnel maintenance functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0009] Figure 1 A schematic diagram of the structure of a tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0010] Figure 2 A side view of a tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0011] Figure 3 A top view of a tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0012] Figure 4 A schematic diagram of the structure of the mechanical operation area in the tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0013] Figure 5 A schematic diagram of the structure of the platform operation area in a tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0014] Figure 6 A schematic diagram of the structure of the sliding wheels on the telescopic platform of the tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0015] Figure 7 A schematic diagram of the structure of a telescopic platform in a tunnel maintenance engineering vehicle provided in an embodiment of the present application;

[0016] Figure 8 A top view of a bogie provided in an embodiment of the present application;

[0017] Fig. 9 A topology diagram of the electric traction and auxiliary power supply system of a tunnel maintenance engineering vehicle provided in an embodiment of the present application.

[0018] Reference numerals:

[0019] 1-frame; 11-bogie; 111-axle gearbox; 112-permanent magnet synchronous motor; 113-coupling; 12-motor controller and cooling system; 13-power battery; 14-hydraulic pump station; 15-water tank; 16-brake assembly; 17-driving operating console; 18-generator set;

[0020] 2- Mechanical operation area; 21- First installation station; 22- Second installation station; 23- Cleaning machine; 24- Transition block; 25- Waste box; 26- Spray material tray; 27- Lifting ring; 28- Spraying machine;

[0021] 3- platform operation area; 31- platform driving mechanism; 311- first driving cylinder; 312- second driving cylinder; 32- platform guiding mechanism; 33- telescopic platform; 331- floor; 332- protective fence; 333- through door; 34- platform supporting mechanism; 35- sliding wheel;

[0022] 41- movable platform; 42- fixed protective device; 43- telescopic protective device; 431- telescopic railing. DETAILED DESCRIPTION

[0023] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] With the continuous increase in labor costs and the improvement of the timeliness requirements for renovation and maintenance, the improvement of rail transit tunnel maintenance and construction efficiency has become a practical need, and less manpower has also become an inevitable trend in the inspection and maintenance of infrastructure such as tunnel maintenance. In this context, in response to the needs for local flushing and mortar repair after demolition of defective locations such as cavities, water leaks, and local loosening of concrete in existing urban rail transit tunnels, the embodiment of the present application provides a railway engineering vehicle equipped with a multifunctional modular expansion area, and its modular expansion area can be equipped with high-pressure water flushing equipment or cement mortar spraying equipment according to needs to achieve functional diversification of a single vehicle model.

[0025] like Figures 1 to 4 As shown, this embodiment provides a tunnel maintenance engineering vehicle, including: a frame 1, bogies 11 are provided below both ends of the frame 1, one bogie 11 is a power bogie, and the other bogie 11 is a driven bogie. Two sets of drive motors are provided on the power bogie, which drive the wheels to move through a gear box.

[0026] A motor controller and cooling system 12, a power battery 13, a hydraulic pump station 14, a water tank 15 and a brake assembly 16 are also provided below the vehicle frame 1. Driving operation platforms 17 are provided above both ends of the vehicle frame 1 to control the tunnel maintenance engineering vehicle to travel in the front and rear directions respectively. It is assumed that one of the driving operation platforms 17 is the front driving operation platform and the other is the rear driving operation platform. A generator set 18 is also provided in front of the rear driving operation platform.

[0027] The frame 1 is provided with a mechanical operation area 2, and the mechanical operation area 2 includes a first operation area and a second operation area. Among them, the first operation area is provided with at least two first installation stations 21, and each first installation station 21 is provided with a fixing component, and the fixing component is used to fix a spray paint tray or a waste box for holding tunnel demolition waste. The first installation station 21 can be used to place a spray paint tray or a waste box, which can be selected according to the specific construction scene. For example: when it is necessary to demolish the inside of the tunnel, a waste box is placed on the first installation station 21, and then the waste box is fixed by a fixing component. Specifically, when a large amount of demolition is required inside the tunnel, the waste box can be fixed to all the first installation stations 21; when a small amount of demolition is required inside the tunnel, the waste box can be fixed to some of the first installation stations.

[0028] When it is necessary to spray concrete mortar inside the tunnel, a spray material tray is placed on the first installation station 21, and then the spray material tray is fixed by the fixing assembly. Specifically, when a large amount of spraying is required inside the tunnel, the spray material tray can be fixed to all the first installation stations 21; when a small amount of spraying is required inside the tunnel, the spray material tray can be fixed to some of the first installation stations. Accordingly, a sprayer 28 is set near the first installation station 21 to perform spraying operations using the material on the spray material tray.

[0029] In the above scheme, the process of installing the waste box or the spray paint tray can be carried out outside the tunnel. After the waste box or the spray paint tray is installed, the engineering vehicle enters the tunnel to perform the operation. For example: when it is necessary to perform demolition in the tunnel, the waste box is fixed at the first installation station 21, and the engineering vehicle enters the tunnel to perform demolition operations. After the waste box is full, the engineering vehicle exits the tunnel, empties the waste box, and then enters the tunnel again to perform demolition operations. After the demolition is completed, the engineering vehicle exits the tunnel, and then fixes the spray paint tray at the first installation station 21, and the engineering vehicle enters the tunnel again to perform spraying operations.

[0030] The above scheme is suitable for large-scale demolition or spraying. For small-scale demolition and spraying, a waste box can be fixed at part of the first installation station 21, and a spray material tray can be fixed at another part of the first installation station 21. Then the engineering vehicle enters the tunnel to perform demolition first, and then spraying. The engineering vehicle can complete the demolition and spraying operations in one go, thereby improving the operation efficiency.

[0031] The second work area is provided with at least one second installation station 22, and each second installation station 22 is provided with a fixing component and a fixing interface for fixing the cleaning machine. The fixing component has the same structure as the above-mentioned structure for fixing the spray paint tray or the waste box, so the spray paint tray or the waste box can also be placed on the second installation station 22 and fixed. This solution is suitable for scenes where a large amount of demolition or spraying is performed. The second installation station 22 is also placed with a waste box or a spray paint tray, and more waste boxes or spray paint trays are set to meet the needs of the operation.

[0032] In addition, a fixed interface is also provided on the second installation station 22 for fixing a cleaning machine 23, which is used to clean the demolished part with high-pressure water. When the tunnel needs to be cleaned, the cleaning machine 23 is fixed to the second installation station 22 through the fixed interface, and the engineering vehicle enters the tunnel for cleaning operations. The fixed interface can be set according to the installation interface of the cleaning machine 23. For example, if the cleaning machine 23 is installed on the second installation station 22 by bolts, a bolt hole is set at the corresponding position of the frame, and the bolt is driven upward from the bottom of the frame through the bolt hole and fixed to the cleaning machine 23.

[0033] Furthermore, for cleaning machines 23 of different models or specifications, when their installation interfaces do not match the fixing interfaces of the frame, the transition block 24 can be used for adjustment. For example, bolt holes are set at different positions of the transition block 24, and the transition block 24 is fixed to the frame 1 from the bottom of the frame by bolts, and then the transition block 24 is fixed to the cleaning machine 23, so as to meet the installation requirements of cleaning machines 23 of different models or specifications and broaden the scope of application. After cleaning, the cleaning machine 23 and the transition block 24 can be disassembled together, and then other equipment such as a waste bin can be placed.

[0034] The cleaning machine may specifically be a high-pressure water pump system, which is connected to a water tank 15 under the frame to provide high-pressure water.

[0035] When only large-scale demolition work is performed, a waste box is fixed at the first installation station 21, and a cleaning machine is fixed at the second installation station 22, and high-pressure water is used for cleaning during the demolition process.

[0036] When only large-area spraying operation is performed, the cleaning machine and the waste box are removed, and the spray material tray is fixed at the first installation station 21 and the second installation station 22 to perform the spraying operation.

[0037] When performing demolition and spraying operations on a small area, a waste box can be fixed at part of the first installation station 21, a spray material tray can be fixed at another part of the first installation station 21, and a cleaning machine 23 can be fixed at the second installation station 22. This can take into account both demolition and spraying operations and can be flexibly adjusted according to different scenarios.

[0038] In the drawings of this embodiment, it is shown that a cleaning machine 23 is fixed on the second installation station 22, and the cleaning machine 23 is fixed on the frame through a transition block 24. A waste box 25 is fixed on a part of the first installation station 21, and a spray paint tray 26 is fixed on another part of the first installation station 21.

[0039] The technical solution provided in this embodiment is that a mechanical working area is provided on the vehicle frame, and the mechanical working area includes a first working area and a second working area; the first working area is provided with at least two first installation stations, each of which is provided with a fixing component, and the fixing component is used to fix a spray paint pallet or a waste box for containing tunnel demolition waste; the second working area is provided with at least one second installation station, and each second installation station is provided with the fixing component and a fixing interface for fixing a cleaning machine. The spray paint pallet or the waste box can be fixed on the first installation station according to the operation needs to perform spraying or demolition operations; the spray paint pallet, the waste box or the cleaning machine can also be fixed on the second installation station according to the needs to perform spraying, demolition or cleaning operations, which has high flexibility and enables one engineering vehicle to realize multiple tunnel maintenance functions.

[0040] Based on the above technical solution, the first working area and the second working area are arranged in sequence along the length direction of the frame. For example, the first working area is close to the front vehicle operating platform, and the second working area is close to the rear vehicle operating platform.

[0041] Furthermore, a plurality of second installation stations 22 are distributed on the left and right sides of the frame so as to keep the left and right sides of the frame as balanced as possible.

[0042] On the basis of the above technical solution, the fixing assembly includes: a lifting ring 27 and a strap, the lifting ring 27 is fixed to the frame 1, and the strap is connected to the lifting ring 27 for binding and fixing the spray paint tray 26 or the waste box 25 to the frame 1.

[0043] On the basis of the above technical solution, the sprayer 28 may be a wheeled sprayer, which can walk on a frame during the spraying operation.

[0044] Further, guardrails are respectively provided on both sides of the frame in the mechanical operation area, and the guardrails are detachable structures. The guardrails are removed to facilitate forklifts to fork components such as waste boxes 25 or spray paint trays 26. After all components are installed, the guardrails are installed, and then the engineering vehicle enters the tunnel.

[0045] On the basis of the above technical solution, a platform working area 3 for carrying operators is also provided on the frame 1. The platform working area 3 and the mechanical working area 2 are arranged in sequence along the length direction of the frame. Specifically, the platform working area 3 is located behind the mechanical working area 2.

[0046] The platform operation area 3 is provided with a platform driving mechanism 31, a platform guiding mechanism 32 and a telescopic platform 33. The platform driving mechanism 31 is connected to the telescopic platform 33 and can drive the telescopic platform 33 to move to one side of the frame 1 or to the other side of the frame 1 along the width direction of the frame 1. The platform guiding mechanism 32 extends along the width direction of the frame 1 and is used to guide and limit the movement of the telescopic platform 33.

[0047] For example, the telescopic platform 33 moves to the left side of the frame 1, and the operator stands on the telescopic platform 33 to perform construction work on the tunnel on the left side of the engineering vehicle. When the construction on the left side is completed, the telescopic platform 33 moves to the right to the top of the frame 1 and is stored. Alternatively, the telescopic platform 33 moves to the right side of the frame 1, and the operator stands on the telescopic platform 33 to perform construction work on the tunnel on the right side of the engineering vehicle, and after the construction is completed, it moves to the left to the top of the frame 1 and is stored. In addition, during the driving of the engineering vehicle, the telescopic platform 33 is stored above the frame 1.

[0048] The telescopic platform 33 cooperates with the platform driving mechanism 31 and the platform guiding mechanism 32 to enable the telescopic platform 33 to extend to the left or to the right, so as to meet the requirements of construction on both sides of the tunnel, and has extremely high flexibility.

[0049] Based on the above technical solution, Figure 5 As shown, the platform driving mechanism 31 includes: a first driving cylinder 311 and a second driving cylinder 312, both of which are arranged on the frame 1. The first driving cylinder 311 and the second driving cylinder 312 both extend along the width direction of the frame 1, and the installation directions of the first driving cylinder 311 and the second driving cylinder 312 are opposite; the piston rods of the first driving cylinder 311 and the second driving cylinder 312 are respectively connected to the telescopic platform 33.

[0050] The piston rod of the first driving cylinder 311 extends, driving the telescopic platform 33 to extend toward one side; the piston rod of the first driving cylinder 311 retracts, driving the telescopic platform 33 to be retracted above the vehicle frame 1. The piston rod of the second driving cylinder 312 extends, driving the telescopic platform 33 to extend toward the other side; the piston rod of the second driving cylinder 312 retracts, driving the telescopic platform 33 to be retracted above the vehicle frame 1.

[0051] In this embodiment, the adjacently arranged first driving cylinder 311 and the second driving cylinder 312 form a group of cylinders. The two groups of cylinders are arranged at intervals. The cylinders arranged in the same direction synchronously drive the telescopic platform 33 to move, so that the telescopic platform 33 is subjected to balanced force during movement, thereby improving reliability.

[0052] On the basis of the above technical solution, the platform guide mechanism 32 includes two sets of slide rails, which are arranged in sequence along the length direction of the frame 1, and the platform drive mechanism 32 is located between the two sets of slide rails. The slide rails extend along the width direction of the frame 1, and the slide rails are recessed inward toward the side of the platform drive mechanism 32 to form a slide groove, which is used to cooperate with the sliding wheel provided on the side of the telescopic platform 33. The sliding wheel slides in the slide groove to limit and guide the movement of the telescopic platform 33 relative to the slide rail. Figure 6 The sliding wheel 35 on the side of the telescopic platform 33 is shown. The sliding wheel adopts a composite bearing to ensure that the top, bottom and side of the sliding wheel are in contact with the inner wall of the slide groove, so that the movement of the telescopic platform 33 is not prone to jamming.

[0053] On the basis of the above technical solution, the platform operation area is further provided with a platform support mechanism 34 for supporting the telescopic platform 33. The platform support mechanism 34 includes a plurality of support rollers arranged in sequence along the width direction of the frame 1, and the rotation axis of the support rollers extends along the length direction of the frame 1. There is rolling friction between the support rollers and the telescopic platform 33, which can support the telescopic platform 33 on the one hand and assist the movement process of the telescopic platform 33 on the other hand.

[0054] For the telescopic platform 33, this embodiment provides an implementation method: Figure 1 and Figure 7 As shown, the telescopic platform 33 includes: a floor 331 and a protective fence 332. The floor 331 is connected to the first driving cylinder 311 and the second driving cylinder 312. The two driving cylinders drive the floor 331 to move relative to the frame 1, and the floor 331 can be stored above the frame 1, or moved to one side of the frame 1 in a first direction, or moved to the other side of the frame 1 in a second direction. The operator can walk on the floor 331 to perform construction.

[0055] The protective fence 332 is arranged around the floor 331 and is fixedly connected to the floor 331 so as to move together with the floor 331. The protective fence 332 is used to provide safety protection for the operator to prevent the operator from falling from the telescopic platform 33. The protective fence 332 is formed by a plurality of beams cross-connected. Passing doors 333 are also provided on both sides of the protective fence 332, and the operator can enter and exit the telescopic platform 33 through the passing doors 333.

[0056] Sliding wheels 35 are provided on both sides of the floor 331, which travel along the slide rails in the platform guide mechanism 32, guide and limit the movement of the floor 331, and make the floor 331 move along the width direction of the frame. The floor 331 is also located above the platform support mechanism 34, and there is rolling friction between the floor 331 and the support rollers.

[0057] The height of the protective fence 332 can be set according to the average height of an adult, for example, the height of the protective fence 332 is set to 1.1 meters.

[0058] like Figure 8 As shown, the bogie provided in this embodiment includes a frame, a wheelset and an axle gearbox 111, a permanent magnet synchronous motor 112, and a coupling 113, wherein the axle gearbox 111, the permanent magnet synchronous motor 112, and the coupling 113 are respectively distributed on the two axles of the power bogie, and the permanent magnet synchronous motors 112 on the two axles can be powered off separately. When a motor on any axle fails, it can be cut off without affecting the normal operation of the other motor, thereby ensuring that the whole machine continues to operate, providing strong protection for the running and traction functions of the whole machine.

[0059] like Fig. 9 As shown, in the tunnel maintenance engineering vehicle provided in this embodiment, the main circuit adopts a dual power supply system, that is, the AC380V generator set 18 or the DC560V power battery 13, which is switched by the power selection switch. The direct current generated by the power battery 13 through the high-voltage box or the generator set 18 through the auxiliary converter (rectifier) ​​is converted into three-phase alternating current with adjustable frequency and voltage by two sets of motor controllers, and supplies power to the two sets of motors to drive the vehicle.

[0060] The auxiliary converter (inverter) converts the DC bus DC560V power supply into a three-phase 380V / 50HZ AC power supply, and supplies power to the on-board tools and equipment such as air compressors, hydraulic stations, sockets, and other loads through the AC distribution cabinet. When the auxiliary converter (inverter) cannot provide AC380V AC power supply, it can also be directly provided by the generator set 18.

[0061] The electric traction system adopts a permanent magnet synchronous motor to meet the requirements of low constant speed stable operation of the vehicle. The motor controller and the motor controller respectively provide variable voltage and frequency AC power for the two permanent magnet synchronous motors 112 to achieve traction of the whole machine. The traction system is cooled by water to ensure safe and stable operation of the system. When the vehicle is in the electric braking condition, the permanent magnet synchronous motor 112 is in the power generation state, and the system feeds back energy to the traction battery through the reverse rectification of the motor controller. The DC chopper can convert the DC bus DC560V DC power supply into a DC24V power supply to power related loads, control circuits, etc., and charge the 24V control battery. When the 24V control battery is low on power, the charger can charge it for emergency. The vehicle electrical system control adopts CAN communication mode, and the debugging interface adopts RS485 interface.

[0062] The tunnel maintenance engineering vehicle provided in this embodiment adopts new energy power, which can be powered by the generator set 18 and the power battery 13 respectively. The generator set 18 and the power battery 13 can meet the operation and operation requirements of the vehicle when they are powered respectively. The vehicle function has good scalability according to different usage requirements, the vehicle has its own power, is flexible to use, and has good safety and environmental protection.

[0063] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A tunnel maintenance engineering vehicle, characterized in that: include: Frame; The frame is provided with a mechanical operation area, and the mechanical operation area includes a first operation area and a second operation area; The first operation area is provided with at least two first installation stations, each of which is provided with a fixing assembly, the fixing assembly being used to fix a spray material tray or a waste box for containing tunnel demolition waste; The second operating area is provided with at least one second installation station, and each second installation station is provided with the fixing component and a fixing interface for fixing the cleaning machine.

2. The tunnel maintenance engineering vehicle according to claim 1, characterized in that: The first working area and the second working area are arranged in sequence along the length direction of the frame.

3. The tunnel maintenance engineering vehicle according to claim 2, characterized in that: The first installation stations are distributed on the left and right sides of the vehicle frame.

4. The tunnel maintenance engineering vehicle according to claim 1, characterized in that: The fixing assembly comprises: a lifting ring and a binding belt, the lifting ring is fixed to the vehicle frame, and the binding belt is connected to the lifting ring and is used to bind and fix the spray paint tray or the waste box to the vehicle frame.

5. The tunnel maintenance engineering vehicle according to claim 1, characterized in that: The area on the frame located at the second installation station is provided with bolt holes, which serve as a fixing interface for fixing the cleaning machine.

6. The tunnel maintenance engineering vehicle according to claim 1, characterized in that: The frame is also provided with a platform operation area for carrying operators, and the platform operation area and the mechanical operation area are arranged in sequence along the length direction of the frame; The platform operating area is provided with a platform driving mechanism, a platform guiding mechanism and a telescopic platform. The platform guiding mechanism extends along the width direction of the frame. The platform driving mechanism is connected to the telescopic platform and can drive the telescopic platform to move to one side or the other side of the frame along the width direction of the frame.

7. The tunnel maintenance engineering vehicle according to claim 6, characterized in that: The platform driving mechanism includes: a first driving cylinder and a second driving cylinder, which are arranged on the frame; the first driving cylinder and the second driving cylinder both extend along the width direction of the frame, and the installation directions of the first driving cylinder and the second driving cylinder are opposite; the piston rods of the first driving cylinder and the second driving cylinder are respectively connected to the telescopic platform.

8. The tunnel maintenance engineering vehicle according to claim 6, characterized in that: The platform guide mechanism includes two sets of slide rails, which are arranged in sequence along the length direction of the frame, and the platform drive mechanism is located between the two sets of slide rails; the slide rails extend along the width direction of the frame, and the slide rails are recessed inward toward the side of the platform drive mechanism to form a slide groove for cooperating with the sliding wheel set on the side of the telescopic platform.

9. The tunnel maintenance engineering vehicle according to claim 6, characterized in that: The platform operation area is also provided with a platform support mechanism for supporting the telescopic platform, which includes a plurality of support rollers arranged in sequence along the width direction of the frame, and the rotation axis of the support rollers extends along the length direction of the frame.

10. The tunnel maintenance engineering vehicle according to claim 6, characterized in that: The operating platform comprises: The floor can be stored above the frame, or moved to one side of the frame in a first direction, or moved to the other side of the frame in a second direction; The protective fence is arranged around the floor and is fixedly connected to the floor.

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