Three-axis outer wall spraying construction equipment and method suitable for low-rise cluster type building

Abstract

The invention discloses three-axis outer wall spraying construction equipment and method suitable for a low-layer cluster type building, the equipment comprises a working platform, a horizontal direction execution assembly, a spraying gun, a vertical adjusting assembly, an electric control cabinet and object carrying equipment, and the working platform is arranged to be of a vertical telescopic structure so as to drive the horizontal direction execution assembly to ascend and descend along a sprayed wall body; the horizontal execution assembly is arranged to drive the spray gun and the vertical adjusting assembly to move periodically in the X direction and the Y direction of a sprayed wall, the spray gun and the vertical adjusting assembly comprise the spray gun and the vertical adjusting assembly driving the spray gun to move periodically in the vertical direction, and the construction equipment sprays the wall through the spray gun. The carrying equipment is connected to the work platform and used for containing equipment corresponding to work of the spray gun, and the electric control cabinet is arranged on the work platform and used for controlling work of the work platform, the horizontal executing assembly, the spray gun, the vertical adjusting assembly and the carrying equipment. The method has the advantages of high safety, high spraying quality, high construction efficiency, low construction cost and the like.

Description

Technical Field

[0001] This invention relates to the field of building exterior wall construction. More specifically, this invention relates to a three-axis exterior wall spraying equipment and method suitable for low-rise cluster buildings. Background Technology

[0002] Research and application of exterior wall spraying equipment have focused on high-rise and super high-rise buildings. There is currently no equipment specifically designed for low-rise buildings, where exterior wall decoration still relies on manual labor. This manual work requires extensive scaffolding, especially in clustered low-rise villas. Scaffolding erection and turnover require significant manpower, resulting in long preparation times and substantial temporary facility maintenance after completion. Furthermore, manual spraying at heights carries high safety risks, and the paint used can have health effects. Currently, the development of clustered low-rise residential buildings in the Middle East is rapid, leading to a surge in demand for exterior wall spraying. Therefore, it is necessary to research and develop a self-propelled, positioning spraying device suitable for low-rise buildings to overcome the shortcomings of manual construction and fill the gap in the field of low-rise exterior wall construction equipment. Summary of the Invention

[0003] One objective of this invention is to provide a three-axis exterior wall spraying construction equipment and method suitable for low-rise cluster buildings, which solves a series of problems existing in manual spraying, such as low efficiency, high material consumption, unstable quality, difficulty in construction quality management, high construction safety risks, and occupational health of workers.

[0004] To address the aforementioned technical problems, this invention provides a three-axis exterior wall spraying construction equipment suitable for low-rise clustered buildings. The equipment includes a work platform, a horizontal execution component mounted on the work platform, a spray gun and vertical adjustment component mounted on the horizontal execution component, an electrical control cabinet, and a carrying device. The work platform is configured with a vertical telescopic structure to drive the horizontal execution component to move vertically up and down along the wall to be sprayed. The horizontal execution component is configured to drive the spray gun and vertical adjustment component to move periodically along the X and Y directions of the wall to be sprayed. The spray gun and vertical adjustment component include a spray gun and a vertical adjustment component that drives the spray gun to move periodically vertically (Z direction). The construction equipment sprays the wall using the spray gun. The carrying device is connected to the work platform and is used to place the equipment corresponding to the spray gun's operation. The electrical control cabinet is mounted on the work platform and is used to control the operation of the work platform, the horizontal execution component, the spray gun and vertical adjustment component, and the carrying device.

[0005] Preferably, the work platform includes a chassis, a scissor lift structure mounted on the chassis, and a horizontal lifting platform mounted on top of the scissor lift structure. Symmetrical track wheel sets are arranged on both sides of the chassis bottom for driving the work platform's movement. Two sets of scissor lift structures are symmetrically arranged on the chassis. An electric cylinder is installed between the chassis and the lifting platform to drive the scissor lift structure and raise / lower the lifting platform. Laser rangefinders are installed on both sides of the lifting platform near the sprayed wall to measure the distance to the sprayed wall. A laser rangefinder is also installed in the middle of the lifting platform to measure the height of the lifting platform from the ground. All laser rangefinders are controlled by a control system within a control cabinet to acquire measurement data. The track wheel sets and electric cylinders are also controlled by a control system within an electrical control cabinet. The horizontal actuator is mounted on the lifting platform.

[0006] Preferably, four support cylinders are also provided at the four corners of the walking chassis, and each of them is provided with a support block at its bottom. The four support cylinders adjust the level of the working platform by extending and retracting, and enable the working platform to be selectively supported on the ground by the walking track wheel set or the support block. The support cylinders are controlled by the control system in the electrical control cabinet.

[0007] Preferably, the horizontal execution component includes a pad, which is horizontally positioned in the middle of the work platform and parallel to the spraying wall in its length direction. A horizontal track beam is slidably mounted on the pad. A rack is fixedly mounted on the top of the horizontal track beam, and a track beam slide rail is fixedly mounted on the side of the horizontal track beam. A motor base is slidably mounted on the track beam, and the motor is fixed inside the motor base. The output shaft of the motor is fitted with the rack via gears, thereby driving the motor base to move periodically along the length direction of the track beam, i.e., the X-axis, through the motor drive. A slot is fixedly mounted on the motor base, which slidably engages with the motor base slide rail. A connecting seat is fixedly mounted on the motor base slide rail, and the connecting seat moves periodically in the Y-axis direction through the sliding engagement of the motor base slide rail and the slot. The spray gun and vertical adjustment component are fixedly mounted on the connecting seat, and the horizontal execution component enables periodic movement in the X and Y directions. The motor is controlled by a control system in the electrical control cabinet. The component also includes a cable drag chain, which is mounted on the work platform and supplies power to the motor as it moves.

[0008] Preferably, the spray gun and vertical adjustment assembly includes a vertical track beam mounted on the horizontal actuation assembly. A vertical spray gun slide is mounted on the vertical track beam, and a spray gun connector is slidably fitted onto it. The spray gun connector is equipped with a spray gun and a sensor mounting bracket. A pair of laser rangefinders and a temperature and humidity sensor are symmetrically arranged on both sides of the spray gun on the sensor mounting bracket. Two industrial cameras are also symmetrically slidably mounted on both sides of the vertical track beam for photographing the sprayed wall. The industrial cameras are communicatively connected to the control system within the electrical control cabinet. The laser rangefinders and temperature and humidity sensors are also controlled and acquire measurement data through the control system within the control cabinet.

[0009] Preferably, the loading device includes a loading trolley and an air compressor. The loading trolley is hinged to the rear of the chassis of the working platform. The air compressor is fixedly mounted on the loading trolley and supplies pressurized air to the spray gun through pipelines. The lifting platform is equipped with a material tank for supplying material to the spray gun through a material supply pipeline.

[0010] Preferably, the work platform is also equipped with an anemometer, which monitors the wind speed and transmits the results to the control system in the electrical control cabinet.

[0011] The present invention also provides a method for construction using a three-axis exterior wall spraying equipment suitable for low-rise cluster buildings, comprising the following steps: Step 1: Drive the construction equipment to move close to the wall to be sprayed. Then, based on the requirements of spraying, drive the work platform to move through the walking track wheel set. By monitoring the distance between the lifting platform and the wall to be sprayed, move it to the set distance position between the lifting platform and the wall. Then, support the work platform through the support cylinder. Step 2: Use an electric cylinder to drive the lifting platform to the highest spraying position, and at the same time adjust the lifting platform to a horizontal state; Step 3: Set the lateral travel of the motor base along the horizontal track beam through the control system, which is the lateral spraying travel of the spray gun; at the same time, set the vertical travel of the spray gun connector on the spray gun slide through the control system, which is the vertical spraying width of the spray gun; control the motor base and connector to perform periodic linear reciprocating motion in the lateral and vertical directions through the control system, so as to realize the periodic spraying operation of the spray gun in the set lateral and vertical working surfaces. Step 4: After one work surface is finished, repeat the above movement process to start the next work surface cyclic spraying operation until the set spraying stroke and width are completed. Step 5: Lower the lifting platform to the set height, repeat the above steps, and complete the next set spraying stroke and width; repeat this process until the lifting platform is lowered to the lowest point, completing the spraying operation on the entire wall.

[0012] Preferably, the position of the horizontal track beam of the horizontal actuator on the pad is adjusted according to the construction environment, so that the horizontal actuator can be selectively cantilevered to one side. At the same time, the distance between the spray gun and the vertical adjustment component and the sprayed wall is controlled by adjusting the position of the connecting seat of the horizontal actuator on the motor base.

[0013] Preferably, during construction, the data from the anemometer is monitored in real time. When the wind speed exceeds the set value, the operation is stopped and the lifting platform is lowered to a safe height. At the same time, the data from the temperature and humidity sensor is monitored in real time. When the temperature and humidity exceed the set values, the operation is stopped. Simultaneously, the distance between the sprayed wall surface and the nozzle of the spray gun, obtained by the laser rangefinder, is monitored in real time. If the distance exceeds the set value, the operation is stopped, and the condition of the sprayed wall surface is determined by the data from the industrial camera.

[0014] The present invention has at least the following beneficial effects: 1. The construction equipment and method of the present invention do not require the erection of scaffolding, thereby avoiding a large amount of manual work required for the installation, dismantling and turnover of scaffolding, and ensuring both safety and economy.

[0015] 2. The construction equipment and method of the present invention can be raised and lowered freely, thereby avoiding personnel working at height and reducing the safety risks of exterior wall spraying operations.

[0016] 3. The construction equipment and method of the present invention improve the efficiency of spraying operations, reduce material consumption, improve the quality of spraying operations, and reduce the cost of exterior wall spraying construction through automatic control system and monitoring.

[0017] 4. The construction equipment and method of the present invention achieve automated construction, thereby avoiding the impact of coatings on the occupational health of workers during spraying operations.

[0018] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0019] Figure 1 This is a front view of a self-propelled three-axis exterior wall spraying construction equipment suitable for low-rise cluster buildings according to the present invention. Figure 2 This is a side view of a self-propelled three-axis exterior wall spraying construction equipment suitable for low-rise cluster buildings according to the present invention. Figure 3 This is a front view of a cantilever operation of a self-propelled three-axis exterior wall spraying construction equipment suitable for low-rise cluster buildings according to the present invention. Figure 4 This is a general drawing of a self-propelled three-axis exterior wall spraying equipment operating platform suitable for low-rise cluster buildings according to the present invention. Figure 5 This is a diagram of the horizontal execution component of a self-propelled three-axis exterior wall spraying construction equipment suitable for low-rise cluster buildings according to the present invention. Figure 6 This invention relates to a self-propelled three-axis exterior wall spraying equipment, including a spray gun and vertical adjustment components, suitable for low-rise clustered buildings. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this invention, the invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0021] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1 to 6 As shown, this invention provides a self-propelled three-axis exterior wall spraying construction equipment suitable for low-rise cluster buildings. It mainly consists of a work platform 100, a horizontal actuator 200, a spray gun and vertical adjustment assembly 300, an electrical control cabinet 400, a cable chain 500, a material tank 600, an anemometer 700, and a carrying device 800. The work platform is configured with a vertical telescopic structure to drive the horizontal actuator to move vertically up and down along the wall to be sprayed. The horizontal actuator is configured to drive the spray gun and vertical adjustment assembly to move periodically along the X and Y directions of the wall to be sprayed. The spray gun and vertical adjustment assembly includes a spray gun and a vertical adjustment assembly that drives the spray gun to move periodically vertically (Z direction). The construction equipment sprays the wall using the spray gun. The carrying device is connected to the work platform and is used to place the equipment corresponding to the spray gun's operation. The electrical control cabinet is located on the work platform and is used to control the operation of the work platform, the horizontal actuator, the spray gun and vertical adjustment assembly, and the carrying device.

[0023] Operating platform 100, such as Figure 4As shown. The two walking track wheel sets 102 are symmetrically arranged on the walking chassis 101. The power battery 104 is fixed below the walking chassis 101 with a ground clearance exceeding 15cm, supplying power to the walking track wheel sets. Four support cylinders 103 are arranged at the four corners of the walking chassis 101. The scissor structure 105 is hinged to form an integral scissor structure via pins. The lower part of the scissor structure is hinged to the walking chassis 101 via pins, and the upper part is hinged to the lifting platform 107 via pins. The two sets of scissor structures are hinged together by electric cylinders 106. The extension and retraction of the electric cylinders drive the scissor structure to move and realize the lifting of the lifting platform. Laser rangefinders A 108 for measuring the distance to the wall are installed on both sides of the lifting platform 107 near the edge of the sprayed wall. Laser rangefinders B 109 for measuring the height of the lifting platform from the ground are installed at the middle position on both sides of the lifting platform. The electrical control cabinet includes a control system that controls various devices such as the tracked wheel assembly and electric cylinders, while also acquiring data from measuring instruments or sensors like laser rangefinders to guide the entire spraying operation. Each of the four support cylinders has a support block at its base. Through different extension and retraction, the four cylinders can adjust the level of the work platform and, depending on the extension height, selectively support the platform on the ground using either the tracked wheel assembly or the support blocks. These support cylinders are also controlled by the control system within the electrical control cabinet. Multiple electric cylinders can also be installed; besides controlling lifting, they can also adjust the level of the lifting platform.

[0024] Horizontal execution component 200, such as Figure 5As shown. The pad 201 is bolted to the upper middle position of the lifting platform 107. The brackets 202 are bolted to both sides of the pad 201 at intervals. The horizontal track beam 203 is made of lightweight and high-strength aluminum alloy and has screws fixing the slide grooves 205 on its lower sides. It is matched with the brackets 202 for limiting and guiding. The horizontal track beam 203 fits perfectly into the brackets 202 through the slide grooves 205 and can slide. It can also slide linearly along the length of the pad 201 by being limited by the brackets 202. The rack 204 is screwed to the upper part of the horizontal track beam 203. The track beam slide rail 206 is screwed to the upper part of both sides of the horizontal track beam 203 and is used in conjunction with the track beam slider 207. The motor base 208 is fixed to the track beam slider 207 with bolts. The motor 209 is installed in the motor base 208. The output shaft of the motor 209 is equipped with a gear 210, which drives the motor base to move in the X direction on the track beam slide rail 206 through meshing with the rack 204. That is, it moves linearly along the length of the horizontal track beam. The periodic left and right movement is achieved by the forward and reverse rotation of the motor. The cable chain 500 is positioned above the lifting platform 107 and moves with the motor to supply power. The slot 211 is fixed above the motor base 208 and slides in conjunction with the motor base slide rail 212. The connecting seat 213 is screwed to the motor base slide rail 212, and its front end is connected to the spray gun and vertical adjustment assembly 300 with screws. The motor base slide rail 212 slides within the slot 211, driving the spray gun to move in the Y-axis, i.e., to move linearly perpendicular to the horizontal track beam in the horizontal direction. The sliding of the motor base slide rail 212 within the slot 211 can be driven by a hydraulic cylinder controlled by a control system, and the motor's movement is also controlled by the control system.

[0025] Spray gun and vertical adjustment assembly 300, such as Figure 6 As shown. The vertical track beam 301 is fixedly connected to the connecting seat 213 with screws. The spray gun slide 302 is fixed to the front of the vertical track beam 301 with screws. The spray gun slider 303 is used in conjunction with the spray gun slide 302. The spray gun slider can be driven to move up and down by a hydraulic cylinder controlled by a control system. The spray gun connector 304 is screwed to the spray gun slider 303. The sensor mounting bracket 305 is bolted to the connector 304. The spray gun 308 is bolted to the spray gun connector 304. A laser rangefinder C 306 is mounted on the sensor mounting bracket 305, with one sensor on each side of the spray gun 308. A temperature and humidity sensor 307 is mounted on the sensor mounting bracket 305. A wind shield 309 is mounted on the spray gun, positioning the nozzle at the center of the wind shield. Camera slides 310 are mounted on both sides of the vertical track beam 301, working in conjunction with the camera slider 311. Two symmetrically arranged industrial cameras 312 are fixed to the camera slider 311. Driven by the slider, the spray gun and camera can move along the Z-axis to adapt to different spraying height requirements. The camera slider and spray gun slider can be integrated, allowing the slider to move via a hydraulic cylinder, thus causing the industrial camera and spray gun to rise or fall synchronously.

[0026] The control cabinet 400 is installed at the edge of the lifting platform 107, the material tank 600 is installed on the outer side of the middle of the lifting platform, and the anemometer 700 is installed at an unobstructed position on the edge of the lifting platform. The anemometer monitors the wind speed and transmits the results to the control system in the control cabinet. The cargo trolley 801 is hinged to the rear of the work platform chassis 101. An air compressor 802 is fixed on the cargo trolley. The air compressor provides pressurized air to the spray gun 308 through pipelines, and the material tank 600 supplies material to the spray gun through a feeding pipe.

[0027] This invention also provides a construction method for a self-propelled three-axis exterior wall spraying equipment suitable for low-rise clustered buildings. It has two operating modes: one suitable for exterior wall spraying operations in confined spaces with small building spacing, where the horizontal actuator 200 is cantilevered to one side, and the spray gun and vertical adjustment assembly 300 retract in the Y-axis to maintain a suitable spraying distance from the wall surface being sprayed; and another in unrestricted spaces, where the horizontal actuator 200 operates in the center of the lifting platform, and the spray gun and vertical adjustment assembly 300 extend forward in the Y-axis, allowing the spray gun to extend a suitable distance beyond the working platform.

[0028] The two work methods have the same workflow, and the specific implementation process is described below: The work platform 100 is in a low position, and the manual feeding tank 600 feeds the material. The work platform 100 is controlled by the corresponding APP or touch screen of the control system in the electrical control cabinet to move to the work position via the walking track assembly. The laser rangefinders A 108 on both sides of the lifting platform 107 measure the distance between the work platform and the wall. The spacing is adjusted by the walking track assembly 102 and the horizontal track beam 203 is kept horizontal with the wall by the adjustment of the four support cylinders. After setting the spraying height (i.e., the height of the lifting platform), the horizontal spraying stroke, the spraying width, the single descent height, the spraying speed and other parameters, the equipment is started to start automatic operation. The lifting platform 107 is raised under the drive of the electric cylinder 106. After reaching the set height, the laser rangefinders B 109 arranged in the middle of both sides of the lifting platform measure the height on both sides and control the electric cylinder 106 to adjust the lifting platform to a horizontal state. The vision system composed of two industrial cameras 312 automatically identifies the work start point and guides the horizontal direction execution component to fine-tune and move the spray gun 308 to the work start point to start the spraying operation. During the spraying operation, laser rangefinders C 306 arranged on both sides of the spray gun 308 measure the distance between the spray gun and the wall in real time and cross-calibrate with the vision system composed of industrial camera 312 to identify the spraying surface in real time, avoiding mis-spraying and missed spraying of door and window openings. The spray gun is driven to make reciprocating linear motion by the meshing motion of gear 210 on rack 204. When a set linear stroke is completed, the spray gun 308 stops spraying, and the work platform 100 is driven by electric cylinder 106 to descend a set height and start the next return linear motion. This is repeated until the lifting platform descends to the lowest point.

[0029] The walking mechanism support cylinder 103 extends out of the whole machine, supported by the support cylinder and automatically leveled. The electric cylinder 106 of the manual operation platform 100 extends to raise the lifting platform 107 to the highest spraying position. After setting parameters such as horizontal spraying stroke, spraying width, single descent height, and spraying speed, the construction equipment enters the automatic operation mode. The laser rangefinder 306 arranged on the left and right sides of the spray gun 307 measures the distance between the working surface and the nozzle in real time. If the distance exceeds the set value by a certain range, the spray gun automatically stops spraying. It automatically identifies window openings and working areas to prevent mis-spraying and missed spraying. The slider on the vertical track beam 301 makes a linear reciprocating motion in the spray gun slide at a set speed. When a set linear stroke is completed, the spray gun 307 stops spraying. The slider drives the spray gun to descend a certain height according to the set value, and then the spray gun starts spraying while making a vertical return linear motion. This is repeated until the lifting platform descends to the lowest position. After a single wall is painted, the work platform's support cylinder 103 retracts, and the platform moves to the next work surface under manual remote control to begin the next work cycle, until all painting work is completed. The work platform 100 is tracked, offering good site adaptability and stability, and can adapt to longitudinal and transverse slopes of 2%, with a leveling function of ±150mm. An anemometer detects the wind speed in the working environment; work stops when the wind speed reaches a certain level, and automatically lowers the construction lifting platform to a safe height when the wind speed exceeds a certain level and affects the stability of the construction equipment. In addition, the nozzles are equipped with wind shields 308 to minimize the impact of wind speed on the painting quality. Temperature and humidity sensors 307 monitor the temperature and humidity of the painting environment in real time to ensure painting quality; if the set values ​​are exceeded, the painting operation stops.

[0030] Self-propelled exterior wall spraying equipment is particularly suitable for exterior wall decoration construction of clustered low-rise buildings. It eliminates the need for scaffolding, as self-propelled operation avoids the installation, dismantling, and relocation of scaffolding between buildings. It features automatic lifting capabilities, reducing the risk of workers having to climb to heights. Equipped with a laser rangefinder, it can automatically identify the work area and non-work areas such as doorways. It boasts a high degree of intelligence and high spraying efficiency, more than three times that of manual spraying. Equipped with an anemometer, it monitors the ambient wind speed in real time, stopping operation when the wind speed exceeds a certain level and lowering the lifting platform height when the wind speed exceeds a safety threshold, effectively ensuring construction quality and safety. In addition, it has advantages such as low material consumption, stable and reliable construction quality, and lower overall construction costs compared to manual labor.

[0031] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention, and other modifications can be easily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and examples shown and described herein.

Claims

1. A three-axis exterior wall spraying construction equipment suitable for low-rise clustered buildings, characterized in that, The system includes a work platform, a horizontal actuator mounted on the work platform, a spray gun and a vertical adjustment assembly mounted on the horizontal actuator, an electrical control cabinet, and a carrying device. The work platform is configured with a vertical telescopic structure to drive the horizontal actuator to move vertically up and down along the wall to be sprayed. The horizontal actuator is configured to drive the spray gun and the vertical adjustment assembly to move periodically along the X and Y directions of the wall to be sprayed. The spray gun and the vertical adjustment assembly include a spray gun and a vertical adjustment assembly that drives the spray gun to move periodically in the vertical direction (Z direction). The construction equipment sprays the wall using the spray gun. The carrying device is connected to the work platform and is used to place the equipment corresponding to the operation of the spray gun. The electrical control cabinet is mounted on the work platform and is used to control the operation of the work platform, the horizontal actuator, the spray gun and the vertical adjustment assembly, and the carrying device.

2. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 1, characterized in that, The work platform includes a chassis, a scissor lift structure mounted on the chassis, and a horizontal lifting platform mounted on top of the scissor lift structure. Symmetrical track wheel sets are arranged on both sides of the chassis bottom to drive the work platform's movement. Two sets of scissor lift structures are symmetrically arranged on the chassis. An electric cylinder is installed between the chassis and the lifting platform to drive the scissor lift structure and raise / lower the lifting platform. Laser rangefinders are installed on both sides of the lifting platform near the sprayed wall to measure the distance to the sprayed wall, and another laser rangefinder is installed in the middle of the lifting platform to measure its height above the ground. All laser rangefinders are controlled by a control system within a control cabinet to acquire measurement data. The track wheel sets and electric cylinders are also controlled by a control system within an electrical control cabinet. The horizontal actuator is mounted on the lifting platform.

3. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 2, characterized in that, The walking chassis is also equipped with four support cylinders at the four corners, each with a support block at its bottom. The four support cylinders can adjust the level of the work platform by extending and retracting, and can also allow the work platform to be selectively supported on the ground by the walking track wheel set or the support block. The support cylinders are controlled by the control system in the electrical control cabinet.

4. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 1, characterized in that, The horizontal actuator includes a pad, which is horizontally positioned in the middle of the work platform and parallel to the spraying wall in its length direction. A horizontal track beam is slidably mounted on the pad. A rack is fixedly mounted on the top of the horizontal track beam, and a track beam slide rail is fixedly mounted on the side of the horizontal track beam. A motor base is slidably mounted on the track beam, and the motor is fixed inside the motor base. The output shaft of the motor is fitted with the rack via gears, thereby driving the motor base to move periodically along the length direction of the track beam, i.e., the X-axis, through the motor drive. A slot is fixedly mounted on the motor base, which slidably engages with the motor base slide rail. A connecting seat is fixedly mounted on the motor base slide rail, and the Y-axis periodic movement of the connecting seat is achieved through the sliding engagement of the motor base slide rail and the slot. The spray gun and vertical adjustment assembly are fixedly mounted on the connecting seat, and the horizontal actuator achieves periodic movement in both the X and Y axes. The motor is controlled by a control system in the electrical control cabinet. The system also includes a cable drag chain, which is mounted on the work platform and supplies power to the motor as it moves.

5. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 1, characterized in that, The spray gun and vertical adjustment assembly includes a vertical track beam mounted on a horizontal actuator. A vertical spray gun slide is mounted on the vertical track beam, and a spray gun connector is slidably fitted onto it. The spray gun connector is equipped with a spray gun and a sensor mounting bracket. A pair of laser rangefinders and a temperature and humidity sensor are symmetrically arranged on both sides of the spray gun on the sensor mounting bracket. Two industrial cameras are also symmetrically slidably mounted on both sides of the vertical track beam for photographing the sprayed wall. The industrial cameras are communicatively connected to the control system within the electrical control cabinet. The laser rangefinders and temperature and humidity sensors are also controlled and acquire measurement data through the control system within the control cabinet.

6. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 2, characterized in that, The loading equipment includes a loading trolley and an air compressor. The loading trolley is hinged to the rear of the chassis of the working platform. The air compressor is fixedly mounted on the loading trolley and supplies pressurized air to the spray gun through pipelines. The lifting platform is equipped with a material tank, which is used to supply material to the spray gun through a material supply pipeline.

7. The three-axis exterior wall spraying equipment for low-rise clustered buildings as described in claim 1, characterized in that, The work platform is also equipped with an anemometer, which monitors wind speed and transmits the results to the control system in the electrical control cabinet.

8. A method for construction using triaxial exterior wall spraying equipment suitable for low-rise clustered buildings, characterized in that, Includes the following steps: Step 1: Drive the construction equipment to move close to the wall to be sprayed. Then, based on the requirements of spraying, drive the work platform to move through the walking track wheel set. By monitoring the distance between the lifting platform and the wall to be sprayed, move it to the set distance position between the lifting platform and the wall. Then, support the work platform through the support cylinder. Step 2: Use an electric cylinder to drive the lifting platform to the highest spraying position, and at the same time adjust the lifting platform to a horizontal state; Step 3: Set the lateral travel of the motor base along the horizontal track beam through the control system, which is the lateral spraying travel of the spray gun; at the same time, set the vertical travel of the spray gun connector on the spray gun slide through the control system, which is the vertical spraying width of the spray gun; control the motor base and connector to perform periodic linear reciprocating motion in the lateral and vertical directions through the control system, so as to realize the periodic spraying operation of the spray gun in the set lateral and vertical working surfaces. Step 4: After one work surface is finished, repeat the above movement process to start the next work surface cyclic spraying operation until the set spraying stroke and width are completed. Step 5: Lower the lifting platform to the set height, repeat the above steps, and complete the next set spraying stroke and width; repeat this process until the lifting platform is lowered to the lowest point, completing the spraying operation on the entire wall.

9. The method for construction using a three-axis exterior wall spraying equipment suitable for low-rise clustered buildings as described in claim 8, characterized in that, Depending on the construction environment, adjust the position of the horizontal track beam of the horizontal actuator on the pad so that the horizontal actuator can be selectively cantilevered to one side. At the same time, adjust the position of the connecting seat of the horizontal actuator on the motor base to control the distance between the spray gun and the vertical adjustment component and the wall to be sprayed.

10. The method for construction using a three-axis exterior wall spraying equipment suitable for low-rise clustered buildings as described in claim 8, characterized in that, During construction, the anemometer data is monitored in real time. When the wind speed exceeds the set value, the operation is stopped and the lifting platform is lowered to a safe height. At the same time, the temperature and humidity sensor data is monitored in real time. When the temperature and humidity exceed the set values, the operation is stopped. The distance between the sprayed wall and the spray gun nozzle is monitored in real time by the laser rangefinder. If the distance exceeds the set value, the operation is stopped, and the condition of the sprayed wall is determined by the data from the industrial camera.

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