Cement mixing, paving and leveling integrated machine

Abstract

This integrated cement mixing, paving, and leveling machine includes a mixing unit, a paving unit, a leveling unit, and a housing. The mixing unit is located above the housing, the paving unit is housed inside the housing, and the leveling unit is located below the housing. The mixing unit and the paving unit are connected. The mixing unit has a first drive device that enables automatic mixing. A cement outlet is located below the paving unit, allowing the mixed cement to fall onto the road surface. The leveling unit has a vibration device that increases the density of the cement through vibration. Rollers are located outside the housing, driving the integrated cement mixing, paving, and leveling machine to move. This design is compact and can achieve mixing, paving, and leveling functions. Cement and fine sand are mixed in proportion and added to the mixing unit. With the addition of an appropriate amount of water, automatic mixing begins. After mixing, the concrete is transported to the cement outlet by gravity or a conveying device and falls onto the construction road surface, making construction convenient.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment for road construction engineering, and in particular to an integrated cement mixing, paving and leveling machine. Background Technology

[0002] Construction and road projects are less common in rural and mountainous areas, making it difficult to promote the use of large-scale construction equipment. The main reasons are their high cost, difficulty in relocating them in mountainous regions, and inability to traverse narrow roads. However, with rising labor costs, manual construction also requires significant investment. Furthermore, large equipment is unsuitable for smaller projects, such as minor municipal maintenance and alleyway repairs. Without it, relying on manual mixing and paving is inefficient and heavily reliant on worker experience, leading to issues like large errors in material proportions and uneven paving thickness.

[0003] In addition, road construction often requires the use of cement mixing equipment, paving equipment and leveling equipment. Multiple pieces of equipment need to be purchased, which increases costs. Multiple operators are also needed, which increases labor costs, but work efficiency is low.

[0004] Chinese patent application CN110904789A, entitled "A Cement Paving Device for Smoothing Cement on Mountain Roads," discloses a technology in the field of road construction equipment. The device includes a movable base with a cement mixing tank mounted on it. A track is provided along the edge of the movable base, with the length of the track aligned with the width of the roadbed. A cement spraying cylinder is movably mounted on the track, with its nozzle facing the roadbed surface. A moving component is provided on the track to drive the cement spraying cylinder along the track's length. An extension frame is provided on the side of the track away from the movable base, and a flat plate is mounted on the extension frame. A lifting component is provided on the extension frame to drive the flat plate to rise and fall vertically. A vibrating element is provided on the flat plate to cause it to vibrate. This invention has the advantage of facilitating the smoothing of cement transmitted to the roadbed, thereby reducing the labor intensity of workers. However, the overall layout is not compact, and the overall volume is large, making it inconvenient for use in mountainous areas and narrow spaces.

[0005] Chinese patent authorization number "CN113882219B" discloses a cement pavement paving and leveling device, including a housing. A cement feeding device is located on the left side of the housing, and a crankshaft cement vibration device is located inside the housing. Two fixed buffer blocks are symmetrically fixed on the front and rear side walls inside the housing, and a linkage clamping device is provided between the two fixed buffer blocks. This invention can automatically feed cement, vibrate, compact, and level the laid cement, and recycle excess cement. The device can automatically eject the cement receiving plate by its own weight and scrape its inner wall at the end of the conveying process. It can automatically spread cement downwards towards the vibrating mixing rod, solving the problem of holes and depressions caused by insufficient cement during paving. It can continuously move the vibrating mixing rod to ensure uniform texture between different cement layers, and can compact and level the laid cement pavement, making the overall cement more compact and the surface smoother. However, this design lacks a concrete mixing structure. Utility Model Content

[0006] This application provides a cement mixing, paving and leveling integrated machine to at least solve the above-mentioned technical problems existing in the prior art.

[0007] According to this application, a cement mixing, paving, and leveling integrated machine is provided, including a mixing device, a paving device, a leveling device, and a housing. The mixing device is located above the housing, the paving device is installed inside the housing, and the leveling device is located below the housing. The mixing device and the paving device are connected. The mixing device is provided with a first driving device that can drive the mixing device to achieve automatic mixing. A cement outlet is provided below the paving device so that the mixed cement can fall onto the road surface from the cement outlet. The leveling device is provided with a vibration device that can improve the density of the cement through vibration. Rollers are provided outside the housing and drive the cement mixing, paving, and leveling integrated machine to move through the rollers.

[0008] Compared with existing technologies, the cement mixing, paving, and leveling integrated machine of this application has the following advantages:

[0009] This compact design enables mixing, paving, and leveling functions. Cement and fine sand are mixed in proportion and added to the mixing device. With the addition of an appropriate amount of water, automatic mixing begins. After mixing, the concrete is transported to the cement outlet by gravity or a conveying device and falls onto the construction surface. The cement mixing, paving, and leveling integrated machine is driven forward by rollers. The vibration device of the leveling device is then used to increase the density of the concrete, which is then leveled. This cement mixing, paving, and leveling integrated machine can be fully electrically driven and equipped with a remote control for remote operation. It is convenient to construct, and a single person can complete the collaborative operation of multiple people with a single machine. Compared with the traditional mode, it improves efficiency many times over, reduces overall construction costs, and is easy to operate. By setting a control chip, intelligent simplification can also be achieved.

[0010] In one embodiment, the mixing device includes a first helical blade, a first driving device, a first baffle, an upper cover, and a lower shell. The upper cover and lower shell are designed separately, allowing the upper cover to open relative to the lower shell. The first helical blade is located at the center of the upper cover and the lower shell. The first driving device can drive the first helical blade to rotate in both forward and reverse directions. The first baffle is located at the lower outlet of the lower shell to control the discharge of the mixing device. Forward rotation mixes the concrete, while reverse rotation conveys the concrete. The concrete can move downward under gravity and tumble upward under the action of the first helical blade, thereby achieving uniform mixing.

[0011] In one embodiment, the conveying device is a drum with a second helical blade of the same outer diameter. The rotation shaft of the second helical blade extends horizontally to convey the mixed cement to the cement outlet position. The second helical blade has good conveying capacity.

[0012] In one embodiment, the rollers are equipped with tracks, which allow the cement mixing, paving, and leveling machine to move via the tracks, which have good passability and climbing performance.

[0013] In one embodiment, the leveling device is provided with a flow divider, a vibrating scraper, and a fine leveling shovel. The flow divider is positioned in front of the vibrating scraper and has multiple flow divider strips. The flow divider strips are arranged in the front-to-back direction, i.e., extending from front to back. The vibrating scraper and the fine leveling shovel are arranged in the left-to-right direction, i.e., extending from left to right. This can achieve better leveling.

[0014] In one embodiment, the mixing device is inclined above the shell, the shell is provided with rollers to support the overall rotation of the mixing device, a first driving device is provided inside the shell to drive the mixing device to rotate relative to the shell, and a third spiral blade is provided inside the mixing device so that the forward and reverse rotation of the mixing device can generate an axial force on the concrete inside, thus better mixing the concrete.

[0015] In one embodiment, the leveling device has a circular grinding disc with its edge raised upwards. A vibrator is installed on the grinding disc so that it vibrates when rotating, thus making the cement road surface smoother and denser.

[0016] In one embodiment, a first rotating shaft and a second rotating shaft are provided below the housing. The first rotating shaft is perpendicular to the second rotating shaft and the first rotating shaft is driven by a bevel gear. The first rotating shaft is arranged in the left-right direction and the second rotating shaft is arranged in the up-down direction. The first rotating shaft can be equipped with rollers and the second rotating shaft can be equipped with grinding discs. In this way, different rotating shafts can be used in different situations. Rollers can be installed when leveling is not required, and grinding discs can be installed when leveling is required and driven by the front rollers.

[0017] In one embodiment, the leveling device includes three grinding discs arranged in a triangular pattern, allowing for straight-line driving to complete the leveling of the entire road surface.

[0018] In one embodiment, the paving device is equipped with an elastic vibrating rod that extends backward at an angle, a design that allows for higher cement density.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0020] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0021] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0022] Figure 1 This paper illustrates the structural composition of the cement mixing, paving, and leveling integrated machine according to Embodiment 1 of this application. Figure 1 ;

[0023] Figure 2 A half-sectional schematic diagram of the cement mixing, paving and leveling integrated machine of Embodiment 1 of this application is shown;

[0024] Figure 3 This paper illustrates the structural composition of the cement mixing, paving, and leveling integrated machine according to Embodiment 1 of this application. Figure 2 ;

[0025] Figure 4 This paper illustrates the structural composition of the cement mixing, paving, and leveling integrated machine according to Embodiment 2 of this application. Figure 1 ;

[0026] Figure 5 A half-sectional schematic diagram of the cement mixing, paving and leveling integrated machine of Embodiment 2 of this application is shown;

[0027] Figure 6 This paper illustrates the structural composition of the cement mixing, paving, and leveling integrated machine according to Embodiment 2 of this application. Figure 2 .

[0028] Explanation of the labels in the diagram:

[0029] 1. Mixing device; 2. Leveling device; 3. Smoothing device; 4. Housing; 5. Roller; 10. First drive device; 11. First spiral blade; 12. First baffle; 13. Top cover; 14. Lower housing; 15. Lower outlet; 16. Third spiral blade; 17. Roller; 18. Bevel gear; 21. Cement outlet; 22. Strip hole; 23. Drum; 24. Second spiral blade; 25. Elastic vibrating rod; 26. Second baffle; 30. Diverting strip; 31. Diverting comb; 32. Vibrating scraper; 33. Fine leveling shovel; 34. Grinding disc; 41. First rotating shaft; 42. Second rotating shaft; 51. Track; 52. Front wheel. Detailed Implementation

[0030] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Example 1:

[0032] like Figure 1 and Figure 2 As shown, the cement mixing, paving, and leveling integrated machine includes a mixing device 1, a paving device 2, a leveling device 3, and a housing 4. The mixing device 1 is located above the housing 4, the paving device 2 is located inside the housing 4, and the leveling device 3 is located below the housing 4. The mixing device 1 and the paving device 2 are connected. The mixing device 1 is equipped with a first drive device 10 that can drive the mixing device 1 to achieve automatic mixing. A cement outlet 21 is provided below the paving device 2 so that the mixed cement can fall onto the road surface from the cement outlet 21. The leveling device 3 is equipped with a vibration device that can improve the density of the cement through vibration. Rollers 5 are provided outside the housing 4, and the cement mixing, paving, and leveling integrated machine is moved by the rollers 5. Because this application has a compact design, it does not consider the mixing of small stones, but only mixes cement and sand, which is convenient for transportation. For construction projects that require small stones to increase strength, stones can be added manually to the construction road surface.

[0033] like Figure 1 and Figure 2As shown, in one embodiment, the mixing device 1 includes a first spiral blade 11, a first driving device 10, a first baffle 12, an upper cover 13, and a lower housing 14. The upper cover 13 and the lower housing 14 are designed separately so that the upper cover 13 can be opened relative to the lower housing 14. The first spiral blade 11 is located at the center of the upper cover 13 and the lower housing 14. The first driving device 10 can drive the first spiral blade 11 to rotate in both directions. The first baffle 12 is set at the lower outlet 15 of the lower housing 14 to control the discharge of the mixing device 1. The lower housing 14 is directly fixed to the housing 4. The lower part of the lower housing 14 is connected to the paving device 2. The first spiral blade 11 can rotate in both directions. When rotating in the forward direction, the concrete receives an upward force, and when rotating in the reverse direction, the concrete receives a downward force, which can provide the force for conveying concrete. Both the upper cover 13 and the lower housing 14 are designed in a conical shape, so that the middle section has a large volume. The upper cover 13 and the lower housing 14 can be connected by threads or by a snap-fit ​​structure. The lower end of the lower housing 14 has a lower outlet 15 equipped with a first baffle 12. The rotation axis of the first baffle 12 is located in the vertical direction, allowing the first baffle 12 to be rotated and controlled in the horizontal plane. Two first baffles 12 can be provided to achieve a split design. The first baffle 12 is controlled by a servo motor to achieve precise rotation.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the roller 5 is provided with a track 51 so that the cement mixing, paving and leveling integrated machine can move by the track 51. The left and right tracks 51 are driven independently, and the steering can be achieved by adjusting the driving force on both sides.

[0035] like Figure 2 and Figure 3 As shown, in one embodiment, the leveling device 3 includes a flow divider 31, a vibrating scraper 32, and a fine shovel 33. The flow divider 31 is positioned forward relative to the vibrating scraper 32 and has multiple flow dividers 30 arranged in a front-to-back direction. The flow divider 31 can move back and forth under the drive of the drive device. The vibrating scraper 32 and the fine shovel 33 are arranged in a left-to-right direction. The height of the vibrating scraper 32 and the fine shovel 33 can be adjusted by screws to meet the construction requirements of different road surfaces and thicknesses. The cement outlet 21 is a strip-shaped hole 22 extending from left to right. Multiple strip-shaped holes 22 can be arranged in a front-to-back direction. The concrete has a high viscosity, and the extrusion power is mainly provided by the first spiral blade 11. A second baffle 26 is provided above the strip-shaped hole 22 to control the opening and closing of the cement outlet 21.

[0036] The integrated cement mixing, paving, and leveling machine has dimensions controlled within 2.1m (length) × 1.2m (width) × 1.8m (height), a compact body, and a net weight controlled within 580kg (including standard counterweight), making it easy to move. The mixing speed can be flexibly adjusted within the range of 15-30r / min to adapt to the mixing needs of different materials. It is driven by 220V power, with low power supply requirements and a wide range of applications. It can also be equipped with a battery for battery-driven operation, with a controllable travel speed between 0.5-1.2m / min, which can accurately match various construction rhythms and fully meet diverse operating scenarios.

[0037] The cement mixing, paving, and leveling integrated machine adopts an innovative integrated design. The top mixing device 1, driven by a variable frequency motor, achieves efficient and precise mixing with double first spiral blades 11. The bottom first baffle 12 can be electrically driven to automatically open and close for precise material control. The leveling device 3 utilizes a comb-shaped diverter 31, a high-frequency vibrating scraper 32, and adjustable counterweight blocks to disperse, compact, and pre-level cement or concrete. The rear modular precision leveling shovel 33 can be combined with a laser leveling instrument to ensure road surface smoothness. The integrated control system, combined with a tracked chassis 51, enables remote operation by a single person.

[0038] like Figure 1 and Figure 2 As shown, the conical upper cover 13 and lower shell 14 of the mixing device 1 can be made of 304 stainless steel inner liner and sprayed with anti-stick coating. For cost considerations, ordinary carbon steel can also be used for rust prevention treatment and sprayed with anti-stick coating. The mixing device 1 uses a geared motor to drive the first spiral blade 11. The forward and reverse rotation design speed is 15-30r / min, which is suitable for mixing different materials such as cement, mortar, and permeable concrete. The bottom first baffle 12 with waterproof switch controls the discharge amount.

[0039] The internal channels of the casing 4 also need to be coated with an anti-stick coating. The high-frequency vibrating scraper 32 has a vibration frequency of 50Hz+5%, an amplitude of 2mm, and a power of 500W. The cement mixing, paving, and leveling integrated machine uses a rubber track 51 type chain drive, which is more adaptable to complex ground environments compared to traditional wheeled machines. The track 51 has a larger ground contact area than tires, allowing for stable operation on sandy and gravelly ground, soft soil, and other easily sinking sites, avoiding problems such as slippage and sinking of wheeled equipment. The chain drive system can use a geared motor or a hydraulic motor to achieve speed variation of 0.5-1.2m / min, ensuring uniform and precise control of construction accuracy.

[0040] To facilitate intelligent control, the integrated cement mixing, paving, and leveling machine uses a microcontroller as its core controller, responsible for coordinating and controlling all functional modules of the machine. It connects to various sensors and actuators via I / O interfaces to acquire data and output commands. Simultaneously, it is equipped with necessary peripheral circuits, such as power supply circuits, clock circuits, and reset circuits, to ensure stable operation of the microcontroller.

[0041] The cement mixing, paving, and leveling integrated machine uses a variable frequency motor drive. A microcontroller is connected to the inverter's control terminal via a PWM (Pulse Width Modulation) signal output port. Based on preset mixing parameters, the microcontroller adjusts the duty cycle of the PWM signal to control the speed of the variable frequency motor driving the double-helix mixing rods, achieving an adjustable speed of 15-30 r / min. A Hall effect sensor detects the actual motor speed and feeds the signal back to the microcontroller. The microcontroller then uses a PID algorithm to adjust the PWM signal, forming a closed-loop control to ensure mixing efficiency and accuracy.

[0042] A laser rangefinder sensor is installed on the upper cover 13 to measure the height of the material inside the conical stirring device 1 in real time, and converts the analog signal into a digital signal via an ADC (analog-to-digital converter) and inputs it to the microcontroller. The microcontroller controls the opening of the first baffle 12 according to the material height and the preset discharge flow rate, so as to achieve precise material control and keep the discharge flow rate error within ±2%.

[0043] The flow divider 31 is driven by a stepper motor, whose driver is connected to the I / O port of the microcontroller. The microcontroller controls the number of steps and direction of the stepper motor's rotation by sending pulse signals, thereby adjusting the angle and position of the flow divider 31 to ensure that cement material is evenly distributed on the working surface. The operating parameters of the flow divider 31 in the system can be set via buttons or a touch screen, and the microcontroller stores these settings in its internal EEPROM.

[0044] The vibratory scraper 32 uses a dedicated vibration control chip to communicate with a microcontroller. The microcontroller controls the enable and frequency adjustment terminals of the chip to achieve a stable 60Hz vibration frequency for the high-frequency vibratory scraper 32. An accelerometer detects the vibration status in real time and feeds the signal back to the microcontroller. If the vibration frequency or amplitude deviates, the microcontroller adjusts it promptly to ensure that the concrete density reaches 98%.

[0045] The precision flat shovel 33 achieves angle control via a geared motor. This motor is connected to the PWM output port of a microcontroller. Based on the preset construction slope and road surface smoothness information fed back by the laser leveling instrument, the microcontroller outputs a PWM signal with a corresponding duty cycle to control the geared motor's rotation, enabling the modular precision flat shovel 330 to be electrically adjusted from 30 to 0 degrees. An angle sensor provides real-time feedback on the shovel's angle, and the microcontroller makes real-time corrections to ensure construction accuracy.

[0046] The laser leveling instrument transmits the detected road surface flatness data to the microcontroller via serial communication. The microcontroller analyzes and processes the data, calculates the height and angle that the precision leveling shovel 33 needs to be adjusted, and issues control commands in a timely manner to ensure that the construction accuracy reaches ±2mm.

[0047] The cement mixing, paving, and leveling integrated machine can be equipped with an integrated control system. A 10-inch touchscreen connects to a microcontroller via a serial port or SPI interface, serving as the human-machine interface. Operators can set construction parameters, start or stop the equipment, and view its operating status on the touchscreen. The microcontroller processes the data and displays it on the touchscreen, controlling the operation of each module according to the operator's instructions.

[0048] The cement mixing, paving, and leveling integrated machine can also be equipped with an intelligent navigation system. A GPS module and electronic compass connect to a microcontroller via a serial port to obtain real-time location and orientation information. The microcontroller controls the motors of the tracked 51 chassis according to the preset construction route through a motor drive circuit, enabling automatic movement and steering of the equipment. Simultaneously, ultrasonic or infrared sensors are used to detect obstacles around the equipment. When an obstacle is detected, the microcontroller promptly adjusts the equipment's route to ensure construction safety.

[0049] The control software employs a modular programming approach, writing the control programs for each functional module as independent subroutines for easier debugging and maintenance. The main program is responsible for initializing each hardware module, continuously monitoring sensor data, processing user input commands, and calling the corresponding subroutines to complete specific control tasks. Simultaneously, a timer interrupt service routine is set up to periodically acquire sensor data and update control signals, ensuring the system's real-time performance.

[0050] The software is configured with overload protection, overcurrent protection, and overvoltage protection functions. When excessive motor current or abnormal voltage is detected, the microcontroller immediately stops the operation of the relevant equipment and issues an alarm signal via an audible and visual alarm. Simultaneously, the fault information is stored in the EEPROM for easy troubleshooting and repair.

[0051] Calculation of stirring power for intelligent stirring device 1: Based on the fluid mechanics stirring power formula To calculate the power required for stirring. Among them, This is a power parameter, which is related to the shape and size of the stirrer and the flow state of the fluid. In turbulent flow, a double-helix stirrer... The value is approximately 1.5-2.0; It refers to the density of the material; the density of cement slurry is generally between 1800-2000 kg / m^3. The rotational speed of the stirring rod is 15-30 r / min, which translates to 0.25-0.5 r / s. It is the diameter of the stirring rod, assuming the diameter of the stirring rod is 0.2m.

[0052] by , , , For example, calculate:

[0053]

[0054] Discharge flow rate calculation: Discharge flow rate of the first baffle 12 The orifice outflow formula from fluid mechanics Calculation. Among them, is the flow coefficient, typically between 0.6 and 0.65; A is the gate opening area, assuming the opening is circular with a diameter of 0.1m, then ; It is the acceleration due to gravity, take ; This refers to the height of the material inside the mixing tank, let's assume it's... .

[0055] by calculate:

[0056]

[0057] Converted to m^3 / h, it is approximately 75.6 m^3 / h. In practice, the discharge flow rate requirement of 0.5-5 m^3 / h can be achieved by adjusting the gate opening through intelligent control.

[0058] Material dispersion calculation: The dispersion effect of the diversion comb 31 can be measured by the uniformity of material distribution on the working surface. Assuming the material flows out of the guide plate at a certain velocity v_0, according to the principle of projectile motion, the horizontal distance the material travels is... In the vertical direction Given the height y of the working surface, the material's descent time can be calculated. This allows us to obtain the horizontal movement distance x of the material. By rationally designing the spacing and angle of the comb teeth, the material is evenly distributed on the working surface, ensuring that the paving thickness error is less than [a certain value]. .

[0059] Vibration compaction calculation: The compaction effect of a high-frequency vibrating scraper 32 on concrete can be evaluated based on vibration acceleration and vibration time. According to the kinetic formula... ,in , The vibration frequency is Assuming the vibration amplitude Then the vibration acceleration .

[0060] Based on the empirical relationship between concrete density and vibration acceleration and time, under this vibration acceleration, after a certain period of vibration, the concrete density can reach 98%. Generally, the vibration time t can be determined based on factors such as the concrete mix proportion and slump; assuming an empirical time of 30 seconds.

[0061] Calculation of the angle adjustment of the rear-mounted precision shovel 33: The angle adjustment range of the precision shovel 33 is 0-30 degrees. According to trigonometric relationships, when the angle between the precision shovel 33 and the ground is... At that time, the horizontal and vertical components of the force of the precision flat shovel 33 are respectively and Where F is the force acting on the precision flat shovel 33. Under different construction slopes, the angle is adjusted... This allows the precision flat shovel 33 to better adapt to the road surface and ensure construction accuracy.

[0062] Calculation of Smoothness Error for Rear-Mounted Shovel 33: The laser leveling instrument monitors road surface smoothness in real time, and its error mainly comes from measurement accuracy and system response time. Assuming the laser leveling instrument's measurement accuracy is 1 mm and the system response time is 0.1 s, at the equipment's travel speed... Below, driving distance Taking into account both measurement errors and the accumulation of errors during the driving process, the construction accuracy can be controlled within ±2mm by timely adjustment of the precision flat shovel 33.

[0063] When the power is turned on, the main control board starts up, the control system performs a self-test, the touch screen displays the main interface, the construction mode is selected, the paving thickness and material ratio are input, the program output in the main control board causes the first spiral blade 11 of the mixing device 1 to start rotating, after the material is mixed, the first baffle 12 of the discharge device opens and the material flows into the leveling device 2, the concrete falls to the ground through the cement outlet 21, is leveled by the leveling device 3, and then manually inspected, and any unqualified positions are filled.

[0064] This integrated cement mixing, paving, and leveling machine deeply integrates the core advantages of small concrete mixers and cement pavers. Through an integrated and innovative design, it achieves intelligent mixing, high efficiency, and precision. The three-dimensional convection design, combined with a variable frequency motor, can mix 200L of material in 3 minutes, increasing efficiency by 40%. The bottom intelligent first baffle 12, combined with laser ranging and electromagnetic control, precisely adjusts the discharge flow rate, controlling the error within ±2% to ensure stable material supply. The diverter comb 31 evenly disperses the material, ensuring a paving thickness error of less than 3mm; the high-frequency vibrating scraper 32 vibrates at 60Hz, achieving a density of 98%; an adjustable counterweight steel plate applies pressure to complete the initial compaction. The rear-mounted precision leveling shovel 33 ensures road surface quality: the modular precision leveling shovel 33 has an electrically adjustable angle of 0-30 degrees, and edge rubber strips prevent slurry spillage and scratches. A laser leveling instrument monitors and corrects in real time, achieving a construction accuracy of ±2mm. It allows for human-machine collaboration and single-person operation: the integrated control system is operated via a 10-inch touchscreen, with intelligent navigation and route planning, and the tracked chassis 51 allows for flexible steering. Single-person operation reduces manpower by 60% compared to traditional methods, resulting in significant cost reduction and efficiency improvement. Combined with the 51-inch tracked flexible steering, it reduces manpower by 60% compared to traditional methods, significantly improving construction efficiency. With the help of AI data models, it can automatically learn different road conditions, allowing for remote command via mobile phone; its smaller size makes it easy to transport in mountainous and field areas; and with solar panels, it can be charged and stored using solar energy, completely eliminating the constraints of power cords.

[0065] Example 2:

[0066] like Figure 4 and Figure 5 As shown, the cement mixing, paving, and leveling integrated machine includes a mixing device 1, a paving device 2, a leveling device 3, and a housing 4. The mixing device 1 is located above the housing 4, the paving device 2 is located inside the housing 4, and the leveling device 3 is located below the housing 4. The mixing device 1 is inclined above the housing 4. The housing 4 is equipped with rollers 17 to support the overall rotation of the mixing device 1. A first drive device 10 is provided inside the housing 4 to drive the mixing device 1 to rotate relative to the housing 4. The mixing device 1 is equipped with third spiral blades 16, which enable the mixing device 1 to generate axial force on the internal concrete when rotating in both directions. Multiple third spiral blades 16 can be provided to increase the tumbling amplitude of the concrete when the mixing device 1 rotates as a whole. The mixing device 1 includes an upper cover 13 and a lower housing 14. The lower housing 14 can rotate relative to the housing 4. The lower housing 14 is equipped with a toothed ring that matches the bevel gear 18 of the first drive device 10. The upper cover 13 can be opened, allowing cement and fine sand to be added in equal proportions before closing the upper cover 13. Under the action of gravity, the rotation of the lower housing 14 enables the internal concrete to tumble. The mixing device 1 can be set up with reference to the mixing tank of a mixer truck, which makes the technology more mature.

[0067] like Figure 4 and Figure 5As shown, in one embodiment, a first baffle 12 is provided below the lower outlet 15 of the mixing device 1. The first baffle 12 moves left and right to open or close, so that the mixing device 1 controls the discharge through the first baffle 12. The conveying device is a drum 23 equipped with a second spiral blade 24. The rotation shaft of the second spiral blade 24 extends horizontally to convey the mixed cement to the cement outlet 21. The concrete inside the drum 23 is pressed forward to the cement outlet 21 by the pressure provided by the second spiral blade 24. The upper opening of the drum 23 is connected to the lower outlet 15 of the mixing device 1.

[0068] like Figure 4 and Figure 5 As shown, in one embodiment, the leveling device 3 is provided with a circular grinding disc 34, the edge of which is raised upwards. A vibrator is installed on the grinding disc 34 so that the grinding disc 34 vibrates when it rotates. The height of the grinding disc 34 can be adjusted within a certain range, suitable for road surface construction of different thicknesses.

[0069] like Figure 4 and Figure 5 As shown, in one embodiment, a first rotating shaft 41 and a second rotating shaft 42 are provided below the housing 4. The first rotating shaft 41 and the second rotating shaft 42 are perpendicular to each other and are driven by bevel gears. The first rotating shaft 41 is arranged in the left-right direction, and the second rotating shaft 42 is arranged in the up-down direction. The first rotating shaft 41 can be equipped with a roller 5, and the second rotating shaft 42 can be equipped with a grinding disc 34. The first rotating shaft 41 and the second rotating shaft 42 can also be provided with different drive structures, which facilitates the direct use of drive structures with different speeds without the need for frequency conversion technology to control the speed.

[0070] like Figure 6 As shown, in one embodiment, the leveling device 3 includes three grinding discs 34 arranged in a triangular pattern at the same height. The cement mixing, paving, and leveling integrated machine is driven by the front wheel 52. When the grinding discs 34 rotate, the friction is small, allowing them to be dragged directly on the road surface by the front wheel 52. This enables the grinding discs 34 to not only grind the cement road surface but also provide support.

[0071] like Figure 5 As shown, in one embodiment, the paving device 2 is provided with an elastic vibrating rod 25 that extends backward at an angle, such that the vibration makes the cement pavement more compact.

[0072] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cement mixing, paving, and leveling integrated machine, comprising a mixing device (1), a paving device (2), a leveling device (3), and a shell (4), characterized in that: The mixing device (1) is located above the housing (4), the paving device (2) is located inside the housing (4), and the leveling device (3) is located below the housing (4). The mixing device (1) is connected to the paving device (2). The mixing device (1) is equipped with a first driving device (10) that can drive the mixing device (1) to achieve automatic mixing. The paving device (2) is provided with a cement outlet (21) below it so that the mixed cement can fall onto the road surface from the cement outlet (21). The leveling device (3) is equipped with a vibration device that can improve the density of the cement through vibration. The housing (4) is provided with rollers (5) and the cement mixing, paving and leveling integrated machine is moved directly or indirectly through the rollers (5).

2. The cement mixing, leveling, and paving integrated machine according to claim 1, characterized in that: The conveying device is a drum (23) equipped with a second spiral blade (24), and the rotating shaft of the second spiral blade (24) extends horizontally to convey the mixed cement to the cement outlet (21).

3. The cement mixing, leveling, and paving integrated machine according to claim 2, characterized in that: The tiling device (2) is equipped with an elastic vibrating rod (25) that extends backward at an angle.

4. The cement mixing, leveling, and paving integrated machine according to any one of claims 1-3, characterized in that: The stirring device (1) includes a first spiral blade (11), a first driving device (10), a first baffle (12), an upper cover (13), and a lower shell (14). The upper cover (13) and the lower shell (14) are designed separately so that the upper cover (13) can be opened relative to the lower shell (14). The first spiral blade (11) is located at the center of the upper cover (13) and the lower shell (14). The first driving device (10) can drive the first spiral blade (11) to rotate in both the forward and reverse directions. The first baffle (12) is set at the lower outlet (15) of the lower shell (14) to control the discharge of the stirring device (1).

5. The cement mixing, leveling, and paving integrated machine according to claim 4, characterized in that: The roller (5) is provided with a track (51) so that the cement mixing, paving and leveling machine can move by means of the track (51).

6. The cement mixing, paving, and leveling integrated machine according to claim 5, characterized in that: The leveling device (3) is provided with a flow divider (31), a vibrating scraper (32) and a fine leveling shovel (33). The flow divider (31) is positioned in front of the vibrating scraper (32). The flow divider (31) is provided with multiple flow dividers (30). The flow dividers (30) are arranged in the front-back direction. The vibrating scraper (32) and the fine leveling shovel (33) are arranged in the left-right direction.

7. The cement mixing, leveling, and paving integrated machine according to any one of claims 1-3, characterized in that: The mixing device (1) is inclined above the housing (4). The housing (4) is provided with a roller (17) to support the overall rotation of the mixing device (1). The housing (4) is provided with a first driving device (10) to drive the mixing device (1) to rotate relative to the housing (4). The mixing device (1) is provided with a third spiral blade (16) so that the forward and reverse rotation of the mixing device (1) can generate an axial force on the concrete inside.

8. The cement mixing, leveling, and paving integrated machine according to claim 7, characterized in that: The leveling device (3) is provided with a circular grinding disc (34), the edge of which is raised upwards, and a vibrator is installed on the grinding disc (34) so ​​that the grinding disc (34) can vibrate when rotating.

9. The cement mixing, leveling, and paving integrated machine according to claim 8, characterized in that: The housing (4) is provided with a first rotating shaft (41) and a second rotating shaft (42) below it. The first rotating shaft (41) is perpendicular to the second rotating shaft (42). The first rotating shaft (41) and the second rotating shaft (42) are driven by bevel gears. The first rotating shaft (41) is arranged in the left-right direction, and the second rotating shaft (42) is arranged in the up-down direction. The first rotating shaft (41) can be equipped with a roller (5), and the second rotating shaft (42) can be equipped with a grinding disc (34).

10. The cement mixing, leveling, and paving integrated machine according to claim 9, characterized in that: The leveling device (3) includes three grinding discs (34) arranged in a triangular pattern.

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