Wall surface concrete grinding mechanism

Abstract

The invention discloses a wall concrete grinding mechanism which comprises a supporting bottom plate, a linear bearing support, a sliding supporting shaft, a reciprocating transverse moving mechanism and a grinding mechanism, the linear bearing support is installed on the supporting bottom plate, the sliding supporting shaft is connected to the linear bearing support in a penetrating mode through a linear bearing, and the reciprocating transverse moving mechanism is connected to the front end of the sliding supporting shaft. The sliding supporting shaft is sleeved with a compression spring connected between the reciprocating transverse moving mechanism and the linear bearing support, the compression spring is used for providing thrust for the reciprocating transverse moving mechanism to be away from the linear bearing support, and a grinding mechanism used for grinding is installed at the moving end of the reciprocating transverse moving mechanism. The reciprocating transverse moving mechanism is used for driving the polishing mechanism to move in the direction parallel to the wall face. The reciprocating transverse moving mechanism and the grinding mechanism can be elastically attached to the wall face, when hard metal embedded parts are ground, the elastic buffering capacity is achieved, and damage caused by rigid impact is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wall surface grinding, and in particular to a wall surface concrete grinding mechanism. Background Art

[0002] With the development of science and technology and the increasing cost of labor, robots are increasingly replacing traditional manual labor. They can effectively avoid the tedious, inefficient, and safety hazards of high-altitude work in various construction industries. However, wall decoration in factories, residences, and nuclear power projects generally uses manual concrete wall grinding. Workers need to stand on stepladders or scaffolding to work at height. After completing an area of construction, the scaffolding needs to be moved, which is inefficient and poses a safety hazard. In addition, grinding dust is extremely harmful to the human body. Manual grinding cannot guarantee the flatness and uniformity of the wall.

[0003] At present, in nuclear power projects, there are generally dense hard metal embedded items in the walls. Robot grinding is prone to conflict with the hard metal embedded items, making grinding extremely inconvenient.

[0004] Therefore, there is an urgent need for a wall concrete grinding mechanism to solve the problem of the inconvenience of conventional robot grinding for walls with dense hard metal embedded items. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wall concrete grinding mechanism to solve the problem that conventional robots are inconvenient in grinding walls with densely embedded objects.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A wall concrete grinding mechanism includes a supporting base plate, a linear bearing bracket, a sliding support shaft, a reciprocating transverse movement mechanism and a grinding mechanism, wherein the supporting base plate is installed with a linear bearing bracket, and the linear bearing bracket is connected with a sliding support shaft that can slide in a direction perpendicular to the wall through a linear bearing, the sliding support shaft is connected with a reciprocating transverse movement mechanism at the front end close to the wall, and the sliding support shaft is provided with a compression spring connected between the reciprocating transverse movement mechanism and the linear bearing bracket, the compression spring is used to provide a thrust for the reciprocating transverse movement mechanism to move away from the linear bearing bracket, the moving end of the reciprocating transverse movement mechanism is installed with a grinding mechanism for grinding, and the reciprocating transverse movement mechanism is used to drive the grinding mechanism to move in a direction parallel to the wall through the moving end.

[0008] To optimize the above technical solutions, specific measures taken also include:

[0009] Furthermore, the reciprocating transverse movement mechanism includes a guide rail mounting plate, a driving screw, a transverse movement mounting plate and a driving motor. The lower end of the guide rail mounting plate is connected to the end of the sliding support shaft, and the upper end of the guide rail mounting plate is laterally provided with a driving screw. The threaded sleeve on the driving screw is provided with a driving nut as a moving end. The lower end of the driving nut slides and fits the upper end surface of the guide rail mounting plate, and the driving nut connects the grinding mechanism to the front side of the guide rail mounting plate close to the wall through the transverse movement mounting plate. The driving motor is installed on the side of the guide rail mounting plate for connecting and driving the driving screw to rotate.

[0010] Furthermore, a protective cover is provided on the upper end of the guide rail mounting plate, and a front end of the protective cover is provided with a slot for allowing the transverse mounting plate to extend and move laterally.

[0011] Furthermore, the grinding mechanism includes a rotating base plate, a rotating motor and a grinding assembly. The movable end of the reciprocating transverse movement mechanism is connected to the rotating motor. The rotating shaft of the rotating motor is fixedly connected to the rotating base plate. A grinding assembly for grinding is installed on the rotating base plate. The rotating motor is used to drive the rotating base plate to drive the grinding assembly to rotate around the rotating axis.

[0012] Furthermore, the grinding assembly includes a grinding disc and a grinding motor. The grinding motor is installed on the front side of the rotating base plate close to the wall. The output end of the grinding motor is connected to the grinding disc with grinding teeth. The grinding motor is used to drive the grinding disc to rotate.

[0013] Furthermore, two symmetrical mounting brackets are provided on the front side of the rotating base plate, and both mounting brackets are provided with long holes extending in the front-to-back direction and passing through the left and right sides. A round shaft is provided on the left and right sides of the grinding motor respectively. The grinding motor can be slidably installed between the two mounting brackets through the connection between the round shaft and the long hole. Several angle adjustment springs are installed in an array between the rear end of the grinding motor and the rotating base plate.

[0014] Furthermore, the grinding motor is arranged between the two mounting frames through an angle adjustment spring, and there is a distance between the two sides of the grinding motor and the mounting frames.

[0015] Furthermore, metal detectors are provided at the upper ends of the two mounting frames.

[0016] Furthermore, it also includes a grinding dust hood, a dust pipe and a vacuum cleaner. The grinding motor is provided with a grinding dust hood installed on one side of the grinding disc, which covers the outside of the grinding disc and does not contact the grinding disc. The vacuum cleaner is installed on the supporting base plate, and the vacuum cleaner is connected to the grinding dust hood through the dust pipe.

[0017] Furthermore, a laser rangefinder is installed on the supporting base plate and is arranged toward the wall.

[0018] The beneficial effects of the present invention are:

[0019] The present invention, through the arrangement of a linear bearing bracket, a sliding support shaft and a reciprocating transverse movement mechanism, can, when in use, utilize a compression spring sleeved on the sliding support shaft to provide a thrust for the reciprocating transverse movement mechanism to move away from the linear bearing bracket, so that the reciprocating transverse movement mechanism and the grinding mechanism can elastically cling to the wall surface, so that when encountering hard metal embedded items during grinding, they can have an elastic buffer structure to avoid damage caused by rigid impact; at the same time, when in use, the present device can be directly installed on a robot arm as a whole using the support base plate, the robot arm carries the support base plate and applies pressure in a direction perpendicular to the wall surface, the end of the sliding support shaft away from the wall surface extends backward from the linear bearing bracket, the grinding mechanism starts grinding, and the reciprocating transverse movement mechanism drives the grinding mechanism to perform reciprocating transverse movement and swing for comprehensive grinding.

[0020] When in use, the device uses a laser rangefinder in conjunction with a compression spring and an angle adjustment spring to adaptively adjust the wall grinding depth and angle, ensuring smoothness and uniformity of the polished wall surface. For nuclear power projects with densely packed hard metal embedded in the walls, this mechanism, when used in conjunction with a concrete polishing robot, allows the metal detector to detect embedded metal components within the wall and enable the polishing robot to avoid them in real time, effectively preventing structural damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a wall concrete grinding mechanism proposed by the present invention;

[0022] Figure 2 This is a structural schematic diagram of a reciprocating transverse movement mechanism of a wall concrete grinding mechanism proposed by the present invention;

[0023] Figure 3 The figure is a structural schematic diagram of a wall concrete grinding mechanism proposed in the present invention.

[0024] Figure markings: 1. Sliding support shaft, 2. Linear bearing bracket, 3. Laser rangefinder, 4. Support base plate, 5. Vacuum cleaner, 6. Grinding mechanism, 7. Transverse mounting plate, 8. Driving screw, 9. Guide rail mounting plate, 10. Driving motor, 11. Metal detector, 12. Grinding dust hood, 13. Grinding disc, 14. Grinding motor, 15. Angle adjustment spring, 16. Rotating base plate, 17. Rotating motor, 18. Rotating shaft. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] As attached Figure 1As shown, a wall concrete grinding mechanism of an embodiment of the present invention includes a supporting base plate 4, a linear bearing bracket 2, a sliding support shaft 1, a reciprocating transverse movement mechanism and a grinding mechanism 6. A linear bearing bracket 2 is installed on the supporting base plate 4, and a sliding support shaft 1 that can slide in a direction perpendicular to the wall is connected to the linear bearing bracket 2 through a linear bearing. The front end of the sliding support shaft 1 close to the wall is connected to the reciprocating transverse movement mechanism, and a compression spring connected between the reciprocating transverse movement mechanism and the linear bearing bracket 2 is sleeved on the sliding support shaft 1. The compression spring is used to provide a thrust for the reciprocating transverse movement mechanism to move away from the linear bearing bracket 2. The moving end of the reciprocating transverse movement mechanism is installed with a grinding mechanism 6 for grinding, and the reciprocating transverse movement mechanism is used to drive the grinding mechanism 6 to move in a direction parallel to the wall through the moving end.

[0027] The present invention is provided with a linear bearing bracket 2, a sliding support shaft 1 and a reciprocating transverse movement mechanism. When in use, the compression spring sleeved on the sliding support shaft 1 can be used to provide the reciprocating transverse movement mechanism with a thrust away from the linear bearing bracket 2, so that the reciprocating transverse movement mechanism and the grinding mechanism 6 can be elastically attached to the wall surface, so that when hard metal embedded items are encountered during grinding, an elastic buffering structure can be provided to avoid damage caused by rigid impact; at the same time, when in use, the device can be directly installed on the robot arm as a whole using the support base plate 4, and the robot arm carries the support base plate 4 and applies pressure in a direction perpendicular to the wall surface. The end of the sliding support shaft 1 away from the wall extends backward from the linear bearing bracket 2, and the grinding mechanism 6 starts grinding. The reciprocating transverse movement mechanism drives the grinding mechanism 6 to swing back and forth for comprehensive grinding.

[0028] In this solution, the structure of the linear bearing bracket 2 and the sliding support shaft 1 can be symmetrically arranged in two groups on the support base plate 4 and are commonly connected to the reciprocating transverse movement mechanism.

[0029] As attached Figure 2 As shown, in another specific embodiment based on the above, the reciprocating transverse movement mechanism includes a guide rail mounting plate 9, a driving screw 8, a transverse movement mounting plate 7 and a driving motor 10. The lower end of the guide rail mounting plate 9 is connected to the end of the sliding support shaft 1, and the upper end of the guide rail mounting plate 9 is laterally provided with a driving screw 8. The threaded sleeve on the driving screw 8 is provided with a driving nut as a moving end. The lower end of the driving nut slides and fits into the upper end surface of the guide rail mounting plate 9, and the driving nut connects the grinding mechanism 6 to the front side of the guide rail mounting plate 9 close to the wall through the transverse movement mounting plate 7. The driving motor 10 is installed on the side of the guide rail mounting plate 9, and is used to connect and drive the driving screw 8 to rotate through structures such as synchronous belts.

[0030] Therefore, when in use, the driving motor 10 can be used to drive the driving screw 8 to rotate, and the driving screw 8 can be used to drive the driving nut to carry the transverse mounting plate 7 and the grinding mechanism 6 to move laterally.

[0031] Wherein, the upper end of the guide rail mounting plate 9 is provided with a protective cover, and the front end of the protective cover is provided with a slot for the transverse mounting plate 7 to extend and move laterally. In this way, a protective measure can be provided by the protective cover.

[0032] As attached Figure 3 As shown, in another specific embodiment based on the above, the grinding mechanism 6 includes a rotating base plate 16, a rotating motor 17, and a grinding assembly. The movable end of the reciprocating transverse movement mechanism is connected to the rotating motor 17, and the rotating shaft 18 of the rotating motor 17 is fixedly connected to the rotating base plate 16. The grinding assembly for grinding is mounted on the rotating base plate 16. The rotating motor 17 is used to drive the rotating base plate 16 to drive the grinding assembly to rotate about the rotating shaft 18. In this way, the grinding assembly can be controlled by the rotating motor 17 to move and adjust.

[0033] Among them, the above-mentioned grinding assembly includes a grinding disc 13 and a grinding motor 14. The grinding motor 14 is installed on the front side of the rotating base plate 16 close to the wall. The output end of the grinding motor 14 is connected to the grinding disc 13 with grinding teeth. The grinding motor 14 is used to drive the grinding disc 13 to rotate.

[0034] Among them, the front side of the above-mentioned rotating base plate 16 is provided with two symmetrical mounting brackets, and both mounting brackets are provided with long strip holes extending in the front-back direction and running through the left and right sides. A circular shaft is provided on the left and right sides of the grinding motor 14 respectively. The grinding motor 14 can be slidably mounted between the two mounting brackets through the connection between the circular shaft and the long strip holes. A plurality of angle adjustment springs 15 are installed in an array between the rear end of the grinding motor 14 and the rotating base plate 16. In this way, the grinding disc 13 and the grinding motor 14 can be adaptively swung up and down or forward and backward by the angle adjustment springs 15 connected to the rear of the grinding motor 14, so that they can maintain a close fit with the wall surface at any time as the wall angle changes. At the same time, it can avoid hard structures that cannot be ground to a certain extent. This setting can effectively prevent the grinding disc 13 from excessively contacting the hard metal embedded parts in the wall surface that cannot be ground, thereby damaging the grinding disc 13.

[0035] The grinding motor 14 is positioned between the two mounting brackets via an angle adjustment spring 15, with a gap between the mounting brackets and the sides of the grinding motor 14. This gap allows the grinding disc 13 and the grinding motor 14 to be adjusted left and right, enhancing adjustability.

[0036] The upper ends of the two mounting brackets are also provided with a metal detector 11. In this embodiment, the metal detector 11 is used to detect metal objects embedded in the wall. It can be set to communicate with the rotating motor 17 or other control terminal, and is used to avoid or stop the grinding wheel in real time when a metal object embedded in the wall is detected. The metal detector 11 can further effectively prevent the grinding wheel 13 from coming into contact with the metal objects embedded in the wall.

[0037] Among them, in a further embodiment based on the above, it also includes a grinding dust hood 12, a dust collection pipe and a dust collector 5. The grinding motor 14 is provided with a grinding disc 13. A grinding dust hood 12 is installed on one side of the grinding disc 13, which covers the outside of the grinding disc 13 and does not contact the grinding disc 13. The dust collector 5 is installed on the supporting base plate 4, and the dust collector 5 is connected to the grinding dust hood 12 through the dust collection pipe. During use, the harmful dust generated by grinding can be recovered and processed by the dust collector 5 through the connection between the grinding dust hood 12, the dust collection pipe and the dust collector 5, thereby reducing the risk of occupational diseases. The grinding dust hood 12, which covers the outside of the grinding disc 13 and does not contact the grinding disc 13, does not affect the normal operation of the grinding disc 13.

[0038] In another specific embodiment based on the above, a laser rangefinder 3 is also mounted on the support base 4, facing the wall. In this solution, the laser rangefinder 3, in conjunction with the sliding support shaft 1 and its compression spring, allows for convenient adjustment and control of wall grinding, adapting to different wall substrates and enabling different grinding depth adjustments in conjunction with the concrete grinding robot.

[0039] Through the coordinated use of the above mechanisms, the present invention can perform grinding operations on nuclear power concrete walls of varying strengths, enabling real-time adjustment of different wall grinding depths and angles, and precise identification of embedded items. This overcomes the problem of uneven grinding caused by the large number of embedded components and uneven wall surfaces in nuclear power plants, achieving convenient control of grinding flatness and improving uniformity. When used in conjunction with a concrete grinding robot, this mechanism uses a laser rangefinder 3 in conjunction with a compression spring and an angle adjustment spring 15 to achieve real-time adjustment of different wall grinding depths and angles, ensuring the flatness and uniformity of the polished wall surface.

[0040] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. cited in the invention are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0041] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of protection of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, it is understood that various changes, modifications, substitutions, embellishments and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and they should be regarded as the scope of protection of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wall concrete grinding mechanism, characterized by: The invention comprises a supporting base plate (4), a linear bearing bracket (2), a sliding support shaft (1), a reciprocating transverse movement mechanism and a grinding mechanism (6); the supporting base plate (4) is provided with a linear bearing bracket (2); the linear bearing bracket (2) is connected to a sliding support shaft (1) which can slide in a direction perpendicular to the wall through a linear bearing; the front end of the sliding support shaft (1) close to the wall is connected to the reciprocating transverse movement mechanism, and the sliding support shaft (1) is provided with a compression spring connected between the reciprocating transverse movement mechanism and the linear bearing bracket (2); the compression spring is used to provide a thrust for the reciprocating transverse movement mechanism to move away from the linear bearing bracket (2); the moving end of the reciprocating transverse movement mechanism is provided with a grinding mechanism (6) for grinding; the reciprocating transverse movement mechanism is used to drive the grinding mechanism (6) to move in a direction parallel to the wall through the moving end.

2. A wall concrete grinding mechanism according to claim 1, characterized in that: The reciprocating transverse movement mechanism comprises a guide rail mounting plate (9), a driving screw (8), a transverse movement mounting plate (7) and a driving motor (10), the lower end of the guide rail mounting plate (9) is connected to the end of the sliding support shaft (1), the upper end of the guide rail mounting plate (9) is transversely provided with a driving screw (8), the threaded sleeve on the driving screw (8) is provided with a driving nut as a moving end, the lower end of the driving nut slides and fits on the upper end surface of the guide rail mounting plate (9), and the driving nut connects the grinding mechanism (6) to the front side of the guide rail mounting plate (9) close to the wall through the transverse movement mounting plate (7), and the driving motor (10) is installed on the side of the guide rail mounting plate (9) for connecting and driving the driving screw (8) to rotate.

3. A wall concrete grinding mechanism according to claim 2, characterized in that: A protective cover is mounted on the upper end of the guide rail mounting plate (9), and a slot is provided at the front end of the protective cover for allowing the transverse mounting plate (7) to extend and move laterally.

4. The wall concrete grinding mechanism according to claim 1, characterized in that: The grinding mechanism (6) comprises a rotating base plate (16), a rotating motor (17) and a grinding assembly. The movable end of the reciprocating transverse movement mechanism is connected to the rotating motor (17). The rotating shaft (18) of the rotating motor (17) is fixedly connected to the rotating base plate (16). A grinding assembly for grinding is installed on the rotating base plate (16). The rotating motor (17) is used to drive the rotating base plate (16) to drive the grinding assembly to rotate around the rotating shaft (18).

5. A wall concrete grinding mechanism according to claim 4, characterized in that: The grinding assembly comprises a grinding disc (13) and a grinding motor (14); the grinding motor (14) is installed on the front side of the rotating base plate (16) close to the wall; the output end of the grinding motor (14) is connected to the grinding disc (13) with grinding teeth; and the grinding motor (14) is used to drive the grinding disc (13) to rotate.

6. A wall concrete grinding mechanism according to claim 5, characterized in that: Two symmetrical mounting brackets are provided on the front side of the rotating base plate (16), and both mounting brackets are provided with long holes extending in the front-back direction and passing through the left and right sides. A circular shaft is provided on the left and right sides of the grinding motor (14), and the grinding motor (14) can be slidably mounted between the two mounting brackets through the connection between the circular shaft and the long holes. A plurality of angle adjustment springs (15) are installed in an array between the rear end of the grinding motor (14) and the rotating base plate (16).

7. A wall concrete grinding mechanism according to claim 6, characterized in that: The grinding motor (14) is arranged between the two mounting frames via an angle adjustment spring (15), and a distance exists between the two sides of the grinding motor (14) and the mounting frames.

8. The wall concrete grinding mechanism according to claim 6, characterized in that: The upper ends of the two mounting frames are also provided with metal detectors (11).

9. The wall concrete grinding mechanism according to claim 5, characterized in that: The invention also comprises a grinding dust hood (12), a dust suction pipe and a dust collector (5); the grinding motor (14) is provided with a grinding dust hood (12) installed on one side of the grinding disc (13), which covers the outside of the grinding disc (13) and does not contact the grinding disc (13); the dust collector (5) is installed on the supporting base plate (4); the dust collector (5) is connected to the grinding dust hood (12) through the dust suction pipe.

10. The wall concrete grinding mechanism according to claim 1, characterized in that: A laser rangefinder (3) is also mounted on the supporting base plate (4) and is arranged toward the wall.

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