Levelness self-adjusting grinding device

Abstract

A levelness self-adjusting grinding device comprises a cross beam, walking wheels and a grinding assembly, the walking wheels are installed at the two ends of the cross beam, the grinding assembly is installed on the cross beam, and a three-dimensional scanner for conducting real-time three-dimensional scanning on a front working area is further installed on the cross beam. The relative height of a working area and the distance from the working area to a three-dimensional scanner are measured through the three-dimensional scanner, a driving device of the grinding assembly is installed on a cross beam, a grinding head and a grinding motor are installed on a grinding frame, and the grinding head is driven by the driving device to move up and down. And the sensor is used for measuring the distance value between the grinding head and the working surface or the pressure value between the grinding head and the working surface. According to the grinding device, the distance value between the grinding head and the working face or the pressure value between the grinding head and the working face is measured through the sensor, after the three-dimensional scanner scans and models a front working area, the height value and the distance of the working face are calculated, the grinding head is guided to deeply grind the high working face, the intelligent degree is high, and the flatness of the whole working face can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface treatment equipment especially a horizontal degree self -adjusting grinding device. BACKGROUND

[0002] The present concrete pavement grinding equipment is mostly hand -pushed single grinding head structure, and its working range is below 0.8 meters, even if there is multi -head grinding equipment, it is mainly two -head or three -head self -driving structure, and the maximum working range is below 2 meters. And the above two structures, the grinding head height is fixed, when the road surface is high and low, the grinding head cannot be attached to the road surface, especially in the low -lying place, the grinding cannot be completed. In the prior art, the grinding piece positioning shaft cooperates with the grinding head positioning hole, relies on the strong magnet on the grinding head to attract the grinding piece, and prevents the grinding piece from falling. However, when there is a working gap between the grinding head and the working surface, the grinding head will be separated from the grinding piece due to the unfirm suction or the unilateral force of the grinding piece being too large when the grinding head rotates at high speed, which causes accidents. In addition, the maximum grinding pressure of the existing grinding equipment is the weight of the equipment, but for the factory production of polyurethane concrete prefabricated slab, the grinding depth is larger than that of conventional concrete, and the surface hardness is high, so more grinding pressure is needed to complete the grinding when realizing the rapid grinding of large plane. The current equipment cannot meet the needs of use. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem in the prior art, and provides a horizontal degree self -adjusting grinding device with high intelligent degree and capable of guaranteeing the flatness of the working surface.

[0004] The utility model adopts the technical scheme that a horizontal degree self -adjusting grinding device comprises a crossbeam, walking wheels and a grinding assembly, the walking wheels are installed at the two ends of the crossbeam, the grinding assembly is installed on the crossbeam, characterized in that a three -dimensional scanner for carrying out real -time three -dimensional scanning on the front working area is further installed on the crossbeam, the relative height of the working area and the distance from the three -dimensional scanner are measured through the three -dimensional scanner, the grinding assembly comprises a driving device, a grinding head, a grinding frame and a grinding motor, the driving device is installed on the crossbeam, the grinding head and the grinding motor are installed on the grinding frame, the grinding head moves up and down under the drive of the driving device, and further comprising a sensor for measuring the distance value of the grinding head and the working surface or the pressure value of the working surface.

[0005] The sensor can have multiple forms, as a preferred scheme, the sensor is a distance measuring sensor, and the distance measuring sensor is installed on the grinding assembly or the crossbeam.

[0006] As another preferred scheme, the sensor is a pressure sensor, and the pressure sensor is installed on the grinding assembly.

[0007] A 3D scanner can have various structures; preferably, the 3D scanner is a 3D laser scanner.

[0008] Further preferably, the grinding components are distributed at intervals along the crossbeam, and the three-dimensional scanner can divide the working area into grinding areas corresponding to the grinding components one by one, and calculate the maximum grinding thickness corresponding to each grinding area.

[0009] To prevent the grinding disc from detaching from the grinding head, preferably, the grinding head includes a grinding disc, a grinding disc, a spring, and a ball bearing. The grinding disc has a downward-facing locating pin hole, the inner wall of which forms a locating ring groove. The top of the grinding disc has an upward-extending locating pin shaft with a transverse through-hole. The spring is disposed within the through-hole, and the ball bearing is mounted at both ends of the spring. Under the spring's elastic force, the ball bearing abuts against the corresponding locating ring groove. With this configuration, when the grinding disc detaches from the grinding head, the pressure of the spring inside the ball bearing must be overcome, requiring manual prying with a tool, thus avoiding the risk of the grinding disc detaching on its own.

[0010] The drive device can be of various types; preferably, it is a hydraulic device. This configuration allows for adjustment of the grinding pressure via the hydraulic device, ensuring repeated contact between each grinding head and the working surface.

[0011] As a preferred embodiment of any of the above solutions, the traveling wheel includes a traveling wheel frame, a main traveling wheel, and a reaction wheel. The main traveling wheel is mounted on the traveling wheel frame. In the traveling state, the main traveling wheel presses against the front of the track. In the grinding state, the reaction wheel abuts against the back of the track. With this configuration, the main traveling wheel presses against the front of the track, enabling the equipment to travel in a straight line. When the grinding device is performing grinding work, the grinding disc contacts the ground, lifting the entire grinding device. At this time, the reaction wheel contacts the back of the track. The working pressure between the grinding disc and the ground is the equipment's own weight plus the reaction force of the reaction wheel, increasing the grinding pressure between the grinding head and the working surface.

[0012] Compared with the prior art, the advantages of this utility model are as follows: the self-adjusting horizontal grinding device measures the distance or pressure between the grinding head and the working surface through a sensor. After scanning and modeling the working area in front, the three-dimensional scanner calculates the height and distance of the working surface, guiding the grinding head to grind the higher working surface to a greater depth. It has a high degree of intelligence and can ensure the flatness of the entire working surface. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the grinding device according to an embodiment of the present invention;

[0014] Figure 2 for Figure 1Front view of the grinding apparatus shown;

[0015] Figure 3 for Figure 1 Top view of the grinding apparatus shown;

[0016] Figure 4 This is a schematic diagram of the working process of the grinding device according to an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the grinding assembly according to an embodiment of the present invention;

[0018] Figure 6 This is a cross-sectional view of the grinding head according to an embodiment of the present invention;

[0019] Figure 7 for Figure 2 An enlarged schematic diagram of part A in the middle. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown, the self-adjusting horizontal grinding device of this embodiment includes a crossbeam 1, a traveling wheel 2, and a grinding assembly 3. The traveling wheel 2 is installed at both ends of the crossbeam 1, and the grinding assembly 3 is installed on the crossbeam 1 and distributed at intervals along the length of the crossbeam 1. A three-dimensional scanner 4 is also installed on the crossbeam 1 to perform real-time three-dimensional scanning of the working area in front. In this embodiment, the three-dimensional scanner 4 is a three-dimensional laser scanner, which measures the relative height of the working area and the distance from the three-dimensional scanner 4. The three-dimensional scanner 4 can divide the working area into grinding areas corresponding to the grinding assembly 3 one by one, and calculate the maximum grinding thickness corresponding to each grinding area.

[0022] like Figure 4 As shown, AF represents the grinding head AF, and the curve represents the working surface height curve obtained after scanning. X represents the set product thickness. The 3D laser scanner 4 scans the working area and divides the working area into several parts according to the number of grinding components 3. In this embodiment, it is designed with 6 grinding components 3 and divided into 6 parts. After division, the maximum grinding thickness of the area corresponding to each independent grinding component 3 is calculated as af. During operation, when the downward working distance of the grinding component 3 reaches the set value, the grinding component 3 rises, completes the grinding of this area, and enters the next working area.

[0023] The 3D laser scanner also functions as a distance measuring device. After performing real-time 3D scanning and modeling of the work area in front, it calculates the height of the work surface and the distance from the 3D laser scanner, guiding the grinding assembly 3 to perform deep grinding on the higher work surfaces to ensure the flatness of the entire work surface. Furthermore, it can also measure the traveling speed and distance of the grinding device as it moves. After entering the surface treatment process, the grinding device first performs a laser 3D scan on the surface of the precast pavement panel to measure the total height of the product. Based on the preset standard height of the pavement panel, it calculates the grinding amount at each point to ensure the flatness of the entire pavement surface. As an example, a method can also be adopted where the grinding device is fixed and the mold of the precast pavement panel moves forward.

[0024] like Figure 5 As shown, the grinding assembly 3 in this embodiment includes a drive device 31, a grinding head 32, a grinding frame 33, and a grinding motor 34. The drive device 31 is mounted on the crossbeam 1, and the grinding head 32 and the grinding motor 34 are mounted on the grinding frame 33. The grinding head 32 moves up and down under the drive of the drive device 31. A sensor 5 is installed on the grinding assembly 3. In this embodiment, the sensor 5 is a distance sensor, which can measure the distance between the grinding head 32 and the working surface. The drive device 31 in this embodiment is a hydraulic device. When working, the hydraulic device can drive the grinding head 32 to float up and down as a whole. The working pressure in the hydraulic cylinder can be adjusted individually to ensure that each grinding head 32 is in contact with the working surface.

[0025] As the grinding head 32 descends with the drive device 31, when the distance between the grinding head and the working surface is detected by the distance sensor to zero, the drive device 31 begins to measure the downward distance of the grinding head 32, i.e., the grinding depth. When the depth reaches the set value af, the drive device 31 rises, completing the grinding work in this area. This achieves a uniformly flat surface after grinding, eliminating unevenness. Alternatively, the distance sensor can be replaced with a pressure sensor, which measures the pressure value after the grinding head 32 contacts the working surface. When the grinding head 32 touches the working surface, the hydraulic device begins to measure the grinding depth. The pressure sensor can be located on the crossbeam 1 or elsewhere.

[0026] like Figure 6As shown, the grinding head 32 in this embodiment includes a grinding disc 321, a grinding plate 322, a spring 323, and a ball bearing 324. The grinding disc 321 has a downward-facing positioning pin hole 325, and the inner wall of the positioning pin hole 325 forms a positioning ring groove 326. The top of the grinding plate 322 has an upward-extending positioning pin shaft 327, and the positioning pin shaft 327 has a transverse through hole 328. The spring 323 is disposed in the through hole 328. The ball bearing 324 is made of steel ball and is installed at both ends of the spring 323. Under the elastic force of the spring 323, the ball bearing 324 abuts against the positioning ring groove 326 on the corresponding side. When the grinding plate 321 is inserted, the ball bearing 324 is squeezed, compressing the spring 323, and the positioning pin shaft 327 is inserted into the positioning pin hole 325. When the ball 324 reaches the positioning ring groove 326, the compressive force decreases, and the ball 324 is locked in the positioning ring groove 326 under the action of the spring 323. At this time, the grinding disc 322 is installed, preventing the grinding disc 322 from separating from the grinding disc 321. When the grinding disc 322 separates from the grinding disc 321, it needs to overcome the pressure of the spring 323 inside the ball 324 and must be pried off manually with a tool to avoid the risk of it falling off on its own.

[0027] The grinding device in this embodiment is a track-driven, self-sensing, multi-head grinding device, such as... Figure 7 As shown, the traveling wheel 2 in this embodiment includes a traveling wheel frame 21, a main traveling wheel 22, and a reaction wheel 23. The main traveling wheel 22 is mounted on the traveling wheel frame 21. Its working principle is as follows: In the traveling state, the main traveling wheel 22 presses against the front of the track 6, completing the straight-line movement of the equipment. In the grinding state, the grinding disc 322 contacts the ground, lifting the entire grinding device. At this time, the reaction wheel 23 contacts the back of the track 6. The working pressure between the grinding disc 322 and the ground is the equipment's own weight plus the support force of the reaction wheel 23, increasing the grinding working pressure.

[0028] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A self-adjusting horizontal grinding device, comprising a beam (1), walking wheels (2) and a grinding assembly (3), the walking wheels (2) are installed at both ends of the beam (1), and the grinding assembly (3) is installed on the beam (1), characterized in that: A three-dimensional scanner (4) for real-time three-dimensional scanning of the front working area is also installed on the beam (1), the relative height of the working area and the distance from the three-dimensional scanner (4) are measured by the three-dimensional scanner (4), the grinding assembly (3) comprises a driving device (31), a grinding head (32), a grinding frame (33) and a grinding motor (34), the driving device (31) is installed on the beam (1), the grinding head (32) and the grinding motor (34) are installed on the grinding frame (33), the grinding head (32) moves up and down under the driving of the driving device (31), and the sensor (5) for measuring the distance value of the grinding head (32) from the working surface or the pressure value of the working surface is further included.

2. The self-leveling grinding device according to claim 1, wherein: The sensor (5) is a distance measuring sensor, and the distance measuring sensor is installed on the grinding assembly (3) or the beam (1).

3. The self-leveling grinding device of claim 1, wherein: The sensor is a pressure sensor, and the pressure sensor is installed on the grinding assembly (3).

4. The self-leveling grinding device of claim 1, wherein: The three-dimensional scanner (4) is a three-dimensional laser scanner.

5. The self-leveling grinding device of claim 1, wherein: The grinding assembly (3) is distributed at intervals along the beam (1), the three-dimensional scanner (4) can divide the working area into grinding areas corresponding to the grinding assemblies (3) one by one, and calculate the maximum grinding thickness of each grinding area.

6. The self-leveling grinding device of claim 1, wherein: The grinding head (32) comprises a grinding disc (321), a grinding sheet (322), a spring (323) and a ball (324), the grinding disc (321) has a downward positioning pin hole (325), the inner wall of the positioning pin hole (325) forms a positioning ring groove (326), the top of the grinding sheet (322) has an upward extending positioning pin shaft (327), the positioning pin shaft (327) has a through hole (328) transversely penetrating, the spring (323) is arranged in the through hole (328), and the ball (324) is installed at two ends of the spring (323), and under the elastic force of the spring (323), the ball (324) abuts against the corresponding side positioning ring groove (326).

7. The self-leveling grinding device of claim 1, wherein: The driving device (31) is a hydraulic device.

8. The self-leveling grinding device according to any one of claims 1 to 7, wherein: The walking wheel (2) comprises a walking wheel frame (21), a main walking wheel (22) and a counterforce wheel (23), the main walking wheel (22) is installed on the walking wheel frame (21), in the walking state, the main walking wheel (22) is pressed against the front surface of the track, and in the grinding state, the counterforce wheel (23) abuts against the back surface of the track.

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