Reinforced concrete member grinding device

Abstract

The invention discloses a reinforced concrete member grinding device which grinds the remaining original extending part of a main steel bar, so that the remaining original extending part of the main steel bar is exposed out of the concrete part of a reinforced concrete member. The reinforced concrete member can be connected with other reinforced concrete members again through the main reinforcing steel bars of the part, and repeated use of the reinforced concrete member is achieved. The method is applied to the field of concrete member reutilization.

Description

Technical Field

[0001] The invention relates to the field of concrete component reuse, and in particular to a reinforced concrete component grinding device. Background Art

[0002] Buildings need to be demolished after a certain number of years of use. Usually, blasting or excavators equipped with drills are used to demolish buildings. Although blasting demolition has the advantages of fast speed and high efficiency, it has disadvantages such as high noise, large dust, personnel safety hazards, damage to building components, and high cost of cleaning up construction waste. Its use cost and recoverable cost are relatively low. Excavators equipped with drills need to break each component of the building for demolition, which has low processing efficiency. In addition, each component is broken, making it difficult to retain complete components and difficult to reuse components.

[0003] In the related art, there is a solution of directly cutting the components separately and then reusing them. However, there are no exposed steel bars on the cut surface of the components, making it difficult to connect them with other components to form a more reliable connection structure. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a reinforced concrete component grinding device, which can improve the reliability of the component when it is reused and increase the strength of the connection node when the component is reused.

[0005] The reinforced concrete component grinding device according to an embodiment of the present invention is used for grinding the steel bars that expose the installation end of the reinforced concrete component, and comprises: A grinding disc, comprising a grinding surface, avoidance holes each provided on the grinding surface, and a grinding assembly provided on the grinding surface, wherein the avoidance holes are used to avoid the steel bars at the mounting end, and the grinding assembly is used to grind the end surface of the mounting end; The driving assembly is drivingly connected to the grinding disc and is used to drive the grinding disc to rotate.

[0006] The reinforced concrete component grinding device according to the embodiment of the present invention has at least the following beneficial effects: in the process of grinding the end face of the installation end by the grinding disc, the driving assembly drives the grinding disc to rotate and grinds the installation end of the reinforced concrete component, the grinding device automatically retains the steel bars on the end face of the installation end through the avoidance hole, and only grinds the concrete part through the grinding assembly, so that the steel bars of the reinforced concrete component are automatically exposed at the installation end of the reinforced concrete component, and in the subsequent reuse of the reinforced concrete component, it can be connected to the steel bars of other components through the steel bars, and then cast to form a connection node, the connection strength of the connection node is higher, and the use of the reinforced concrete component is more convenient and reliable.

[0007] According to some embodiments of the present invention, the drive assembly is configured to: drive the grinding disc to rotate eccentrically, define a projection along a direction perpendicular to the rotation axis as a projection plane, the projection formed by the eccentric rotation trajectory of the avoidance hole and the projection plane has an overlapping area, and the projection of the steel bar at the installation end on the projection plane is located within the overlapping area.

[0008] According to some embodiments of the present invention, the inner circumference of the avoidance hole is provided with rolling teeth.

[0009] According to some embodiments of the present invention, the grinding assembly includes edge grinding teeth and center grinding teeth, the center grinding teeth surround the avoidance hole, and the edge grinding teeth surround the center grinding teeth.

[0010] According to some embodiments of the present invention, the grinding surface has a mounting groove, the edge grinding tooth is installed in the mounting groove, the edge grinding tooth includes a main body and a grinding part rotatably connected to the main body, and at least part of the grinding part extends out of a notch of the mounting groove located on the grinding surface.

[0011] According to some embodiments of the present invention, the central grinding tooth is protruding from the grinding surface, and the central grinding tooth includes a plurality of grinding teeth distributed along an arc.

[0012] According to some embodiments of the present invention, the edge grinding teeth are provided in plurality, the center grinding teeth are provided in plurality, the plurality of edge grinding teeth are evenly distributed along the circumference of the avoidance hole, and the plurality of center grinding teeth are evenly distributed along the circumference of the avoidance hole.

[0013] According to some embodiments of the present invention, the number of the grinding discs is two, the number of the driving assemblies is two, and the two driving assemblies are respectively connected to the two grinding discs by transmission; Wherein, the two grinding discs are configured to respectively grind and expose the two steel bars along the first diagonal direction of the end surfaces of the mounting ends.

[0014] According to some embodiments of the present invention, it further comprises: a spacing adjustment component, the grinding disc and the corresponding driving component are both arranged on the spacing adjustment component, and the spacing adjustment component is used to adjust the distance between the two grinding discs.

[0015] According to some embodiments of the present invention, it further includes: a rotating assembly, all the grinding discs and all the driving assemblies are connected to the rotating assembly, and the rotating assembly is configured to: drive the grinding discs and the driving assemblies to move to the second diagonal direction, and respectively grind the two steel bars that expose the end faces of the mounting ends along the second diagonal direction.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic structural diagram of a reinforced concrete component grinding device according to an embodiment of the present invention for grinding a reinforced concrete component; Figure 2 A schematic structural diagram of a reinforced concrete component grinding device according to an embodiment of the present invention; Figure 3 It is a front view structural schematic diagram of a grinding disc in a reinforced concrete component grinding device according to an embodiment of the present invention; Figure 4 A schematic diagram of the back structure of a grinding disc in a reinforced concrete component grinding device according to an embodiment of the present invention; Figure 5 The figure is a schematic diagram of the three-dimensional structure of a grinding disc in a reinforced concrete component grinding device according to an embodiment of the present invention from a rear view.

[0018] Figure Number: Grinding disc 100; grinding surface 110; mounting groove 111; avoidance hole 120; grinding assembly 130; edge grinding teeth 131; center grinding teeth 132; eccentric connecting hole 140; A drive assembly 200; Spacing adjustment assembly 300; adjustment fixing plate 310; adjustment plate 320; sliding track 330; adjustment track 340; Rotating assembly 400; The assembly 500 is moved horizontally. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "a number" refers to one or more than one, and "a plurality" refers to two or more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Generally speaking, there are four main steel bars distributed along the length of reinforced concrete components. When the reinforced concrete components are cast, the main steel bars will partially extend out of the concrete part to connect with other concrete components. After the reinforced concrete components are cut, the original extended part of the main steel bars will still be retained in the cut part.

[0024] Reference Figures 1 to 5 As shown, an embodiment of the present invention proposes a reinforced concrete component grinding device, which grinds the remaining original protruding part of the main steel bar so that the remaining original protruding part of the main steel bar is exposed outside the concrete part of the reinforced concrete component, so that the reinforced concrete component can be connected with other reinforced concrete components again through the main steel bar of this part, thereby realizing the reuse of the reinforced concrete component. The reinforced concrete component grinding device includes: a grinding disc 100 and a drive assembly 200.

[0025] In this embodiment, the grinding disc 100 includes a grinding surface 110, avoidance holes 120 all arranged on the grinding surface 110, and a grinding assembly 130 arranged on the grinding surface 110. The avoidance holes 120 are used to avoid the steel bars at the installation end, and the grinding assembly 130 is used to grind the end surface of the installation end. The grinding disc 100 is disc-shaped, the grinding surface 110 is the end surface of the grinding disc 100, the avoidance holes 120 are basically located at the center of the grinding disc 100, and are at least connected to the grinding surface 110 along the axial direction of the grinding disc 100. The avoidance holes 120 can be connected only to the grinding surface 110, as long as the depth of the avoidance holes 120 can accommodate the length of the steel bars exposed by the reinforced concrete component. The avoidance holes 120 can also be connected to the grinding surface 110 and also connected to the other end surface relative to the grinding surface 110 to accommodate the steel bars exposed by the reinforced concrete component. The grinding assembly 130 is a plurality of cutting tools with a certain rigidity and hardness, so as to fully grind the concrete part in the reinforced concrete component and break it, thereby exposing the steel bars at the end surface of the installation end.

[0026] The driving assembly 200 is connected to the grinding disc 100 by transmission and is used to drive the grinding disc 100 to rotate. The driving assembly 200 is a torque motor, and the driving shaft of the torque motor is connected to the grinding disc 100 by transmission. Because the length of the steel bar that needs to be exposed on the end surface of the installation end is limited, the axial length of the avoidance hole 120 is limited. When the driving assembly 200 is connected to the center position of the grinding disc 100 by transmission, a transmission block that avoids the avoidance hole 120 along its axial direction is provided at the center position of the grinding disc 100. The transmission block is connected to the driving shaft of the torque motor by transmission, so that the grinding disc 100 rotates.

[0027] It is worth understanding that, in the process of the grinding disc 100 grinding the end face of the installation end, the driving assembly 200 drives the grinding disc 100 to rotate and grinds the installation end of the reinforced concrete component. The grinding device automatically retains the steel bars on the end face of the installation end through the avoidance hole 120, and only grinds the concrete part through the grinding assembly 130, so that the steel bars of the reinforced concrete component are automatically exposed at the installation end of the reinforced concrete component. In the subsequent reuse of the reinforced concrete component, it can be connected to the steel bars of other components through the steel bars, and then cast to form a connection node. The connection strength of the connection node is higher, and the use of the reinforced concrete component is more convenient and reliable.

[0028] Reference Figure 4 and Figure 5 As shown, in some specific embodiments of the present invention, the driving assembly 200 is configured to: drive the grinding disc 100 to rotate eccentrically, define the projection along the perpendicular direction to the rotation axis as the projection plane, the projection formed by the eccentric rotation trajectory of the avoidance hole 120 and the projection plane has an overlapping area, and the projection of the steel bar at the installation end on the projection plane is located within the overlapping area.

[0029] It is worth understanding that the grinding disc 100 rotates eccentrically to cause the avoidance hole 120 to rotate eccentrically, and the overlap area of ​​the avoidance hole 120 during the eccentric rotation can be controlled by the amplitude of the eccentric rotation of the grinding disc 100. The size of the overlap area is controllable and can adapt to steel bars of different sizes. The adaptation range of the reinforced concrete component grinding device is wider.

[0030] Specifically, the drive shaft of the drive assembly 200 is located in the avoidance hole 120, and the axis of the drive shaft does not overlap with the axis of the avoidance hole 120. During the rotation of the drive shaft, the eccentric rotation of the avoidance hole 120 has an overlap area, and the closer the axis of the drive shaft is to the center of the avoidance hole 120, the larger the overlap area, and the closer the axis of the drive shaft is to the edge of the avoidance hole 120, the smaller the overlap area. Therefore, by changing the relative position of the drive shaft of the drive assembly 200 and the transmission block along the radial direction of the grinding disc 100, that is, the relative position of the drive shaft and the axis of the avoidance hole 120, the size of the overlap area can be changed, thereby controlling the size of the exposed part of the installation end. In actual use, the corresponding overlap area size can be selected according to the steel bar size of the end face of the installation end, so that the steel bar is just exposed after grinding.

[0031] Among them, because the size of the steel bars is generally a specified value and is generally an integer, the difference in the sizes of steel bars of different specifications can be determined. The relative position of the drive shaft and the transmission block can be determined based on the size difference, and then the corresponding installation structure is set on the transmission block. For example, the transmission block is provided with bolt holes of different sizes, and different installation positions can be distributed in sequence along the circumferential direction of the avoidance hole 120, which is convenient for distinguishing and connecting the drive shaft.

[0032] Reference Figure 4 and Figure 5 As shown, the grinding disc 100 has a plurality of groups of eccentric connection holes 140, and different groups of eccentric connection holes 140 are spaced apart along the circumference of the grinding disc 100, and each group of eccentric connection holes 140 is used to be fixedly connected to the drive shaft of the drive assembly 200 through a connecting member such as a bolt. In this embodiment, the number of each group of eccentric connection holes 140 is set to four.

[0033] Reference Figure 3 As shown, in some specific embodiments of the present invention, the inner circumference of the avoidance hole 120 is provided with rolling teeth.

[0034] It is worth understanding that during the eccentric rotation of the avoidance hole 120, some concrete enters the avoidance hole 120. The rolling teeth on the inner surface of the avoidance hole 120 collide and squeeze the concrete remaining on the surface of the steel bar and the concrete inside the avoidance hole 120, so that the remaining concrete on the surface of the steel bar can be further removed, thereby improving the exposure effect of the steel bar.

[0035] In this embodiment, the distance between the inner circumference of the avoidance hole 120 and the surface of the steel bar is within a reasonable range. When concrete enters between the inner circumference of the avoidance hole 120 and the surface of the steel bar, the rolling teeth can squeeze the concrete together with the steel bar, and the concrete remaining on the surface of the steel bar is also affected by the squeezing force and loosens and falls off, so that less concrete remains on the surface of the steel bar and the steel bar is better exposed.

[0036] In addition, during the eccentric rotation of the grinding disc 100, the grinding contact time at the position corresponding to the avoidance hole 120 is shorter than that at other areas, so that the grinding of concrete near the steel bar is insufficient, and concrete around the steel bar is easily left. The grinding contact time of the concrete around the steel bar is increased by the rolling teeth, making it less likely that concrete around the steel bar will remain.

[0037] Furthermore, the radial cross section of the avoidance hole 120 is perpendicular to the axial direction of the avoidance hole 120, and the radial cross section of the avoidance hole 120 gradually abuts along the direction from the grinding surface 110 to the other end face of the grinding disc 100. In this embodiment, the radial cross section of the avoidance hole 120 is circular, and its diameter gradually increases. The avoidance hole 120 mainly grinds the circumference of the steel bar at the small end close to the grinding surface 110. At the same time, the steel bar is supported by the reinforced concrete component, and the steel bar itself is not easy to deform, and can better remove the concrete on the surface of the steel bar together with the rolling teeth. At the large end away from the grinding surface 110, the radial cross section of the avoidance hole 120 increases, and the distance between the avoidance hole 120 and the steel bar increases. The avoidance hole 120 is not easy to affect the end of the steel bar away from the reinforced concrete component, thereby avoiding the deformation of the steel bar. In other embodiments, the avoidance hole 120 is divided into multiple sections along its axial direction, each section has a certain axial length, and the axial length of each section may be the same or different; the radial length of each section may be a fixed value, but the radial lengths of different sections are different, and the radial lengths of different sections increase from the grinding surface 110 to the other end surface of the grinding disk 100; or, the radial lengths of some sections are fixed, and the radial lengths of other sections increase from the grinding surface 110 to the other end surface of the grinding disk 100.

[0038] Reference Figure 3 As shown, in some specific embodiments of the present invention, the grinding assembly 130 includes an edge grinding tooth 131 and a center grinding tooth 132 . The center grinding tooth 132 surrounds the avoidance hole 120 , and the edge grinding tooth 131 surrounds the center grinding tooth 132 .

[0039] It is worth understanding that the grinding assembly 130 grinds the concrete portion around the avoidance hole 120 through the center grinding teeth 132, so that the concrete portion near the avoidance hole 120 can be better ground, and the center grinding teeth 132 can better grind the portion surrounding the steel bars in the installation end of the reinforced concrete component; the edge grinding teeth 131 grind the portion of the installation end away from the steel bars, so that the end face of the installation end is fully ground.

[0040] Reference Figure 3 As shown, in some specific embodiments of the present invention, the central grinding tooth 132 is protruded from the grinding surface 110, and the central grinding tooth 132 includes a plurality of grinding teeth distributed along an arc.

[0041] In this embodiment, the center grinding teeth 132 include a plurality of tool groups, all of which are evenly distributed around the axial direction of the avoidance hole 120, and each tool group includes a plurality of tools that are distributed in a spiral line in sequence along the radial direction of the avoidance hole 120. The spiral-shaped tools guide the ground concrete fragments to be discharged from the center of the avoidance hole 120 to the outer edge of the grinding disk 100. Each tool is made of high-strength wear-resistant material to ensure that it has excellent wear resistance, impact resistance and high-temperature stability during use, such as cemented carbide. The edge grinding teeth 131 use a single-edged hob for crushing and grinding, so that the concrete part of the reinforced concrete component can be cleaned more efficiently. The material selection of the edge grinding teeth 131 is basically the same as the material selection requirements of the center grinding teeth 132, and cemented carbide can also be used.

[0042] Reference Figure 3 As shown, in some specific embodiments of the present invention, the grinding surface 110 has a mounting groove 111, and the edge grinding tooth 131 is installed in the mounting groove 111. The edge grinding tooth 131 includes a main body and a grinding part rotatably connected to the main body, and at least part of the grinding part extends out of the notch of the mounting groove 111 located on the grinding surface 110.

[0043] It is worth understanding that the edge grinding teeth 131 can rotate on their own. When the grinding disc 100 rotates, the edge grinding teeth 131 contact the mounting end surface of the reinforced concrete component. Driven by the contact pressure, the grinding portion of the edge grinding teeth 131 rotates around its main body, so that the edge grinding teeth 131 rotates on their own and crushes the concrete part of the reinforced concrete component, thereby achieving efficient crushing of the reinforced concrete component.

[0044] In this embodiment, the grinding portion is in the shape of a ring, and the main body is in the shape of a disc. The grinding portion and the main body are rotatably connected via a tapered roller bearing. The outer edge of the grinding portion includes grinding teeth evenly distributed along its circumferential direction. The grinding teeth can better grind the installation end face of the reinforced concrete component and improve the grinding effect.

[0045] Reference Figure 3 As shown, in some specific embodiments of the present invention, the edge grinding teeth 131 are provided in plurality, the center grinding teeth 132 are provided in plurality, the plurality of edge grinding teeth 131 are evenly distributed along the circumference of the avoidance hole 120 , and the plurality of center grinding teeth 132 are evenly distributed along the circumference of the avoidance hole 120 .

[0046] It is worth understanding that the edge grinding teeth 131 and the center grinding teeth 132 are both distributed along the axial direction of the avoidance hole 120, and are both provided in multiple numbers, so that the grinding efficiency of the grinding disc 100 is higher, and the mounting end face of the reinforced concrete component can be ground more efficiently, thereby exposing the steel bars on the mounting end face.

[0047] In addition, in order to make the edge grinding teeth 131 and the center grinding teeth 132 work more efficiently, a cooling nozzle is provided on the grinding surface 110. The cooling nozzle is connected to a cooling box and can pump water in the cooling box through a water pump to spray out from the cooling nozzle, thereby timely taking away the heat generated by the edge grinding teeth 131 and the center grinding teeth 132 during grinding, thereby improving the service life of the edge grinding teeth 131 and the center grinding teeth 132.

[0048] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, two grinding discs 100 are provided, two driving assemblies 200 are provided, and the two driving assemblies 200 are respectively connected to the two grinding discs 100 in a transmission manner; wherein the two grinding discs 100 are configured to respectively grind the two steel bars whose end surfaces of the mounting ends are exposed along the first diagonal direction.

[0049] It should be noted that, generally speaking, a reinforced concrete component has four main steel bars distributed along its length. When the reinforced concrete component is cast and formed, the main steel bars will partially extend out of the concrete part to connect with other concrete components. The shape formed by connecting the four main steel bars in sequence is roughly a rectangle, and the four main steel bars are located at the four ends of the rectangle.

[0050] The first diagonal direction is the direction of the line connecting two end points of the four main steel bars that are diagonally opposite to each other.

[0051] It is worth understanding that by setting two grinding discs 100, the two main steel bars at the diagonal positions are ground by the two grinding discs 100 respectively, and the steel bars of this part are exposed, so that the two main steel bars are exposed, and the two main steel bars are processed at the same time, thereby improving the processing efficiency of the installation end surface of the reinforced concrete component. Among them, the spacing between the two main steel bars along the first diagonal direction is the largest, and there can be sufficient space to accommodate the grinding disc 100, so that the radial size of the grinding disc 100 can be appropriately increased, thereby grinding a larger area of ​​concrete and reducing the existence of dead angles.

[0052] Compared with a reinforced concrete component grinding device with only one grinding disc 100, the reinforced concrete component grinding device with two grinding discs 100 has a higher grinding efficiency. Compared with a reinforced concrete component grinding device with three or four grinding discs 100, the reinforced concrete component grinding device with two grinding discs 100 has a larger grinding surface 110, which greatly reduces the existence of dead angles, so that the end surface of the installation end of the reinforced concrete component can be ground more neatly.

[0053] Reference Figure 1 and Figure 2As shown, in some specific embodiments of the present invention, the reinforced concrete component grinding device also includes: a spacing adjustment component 300, the grinding disc 100 and the corresponding driving component 200 are both arranged in the spacing adjustment component 300, and the spacing adjustment component 300 is used to adjust the distance between the two grinding discs 100.

[0054] It should be noted that the position distribution of the four main steel bars in different reinforced concrete components is not the same. In order to adapt to reinforced concrete components of different sizes, the relative position between the two grinding discs 100 is adjusted by the spacing adjustment component 300, so that the reinforced concrete component grinding device can adapt to reinforced concrete components of different sizes. The cost of using the equipment is lower, and there is no need to customize it for each size of reinforced concrete component, and the equipment cost is also lower.

[0055] In this embodiment, the spacing adjustment assembly 300 includes an adjustment fixing plate 310, two adjustment plates 320, two sliding rails 330 and two adjustment rails 340. The sliding rails 330 and the adjustment rails 340 are both fixed to the adjustment fixing plate 310. The adjustment plate 320 is slidably arranged on the two sliding rails 330 and is transmission-connected to the adjustment rails 340. The adjustment plate 320 can be fixed at any position or a preset position on the adjustment rails 340 to adjust the relative position of the two adjustment plates 320. The two driving assemblies 200 are respectively fixed to the two adjustment plates 320 and respectively support and drive the grinding discs 100. The spacing between the two grinding discs 100 is adjusted by the distance between the two adjustment plates 320. Among them, the adjustment rails 340 are lead screw slider structures, the slider is fixedly connected to the adjustment plate 320, and the lead screw is rotationally connected to the adjustment fixing plate 310.

[0056] It should also be noted that when the two grinding discs 100 rotate, the distance between the two grinding discs 100 is fixed and a certain spacing must be maintained to avoid mutual influence between the two grinding discs 100, and the interval between the two grinding discs 100 will not be ground, resulting in part of the concrete remaining, which requires secondary processing. In this embodiment, because the grinding discs 100 rotate eccentrically, the motion trajectories of the grinding surfaces 110 of the two grinding discs 100 can partially overlap, but during the rotation process, the timing of the two grinding discs 100 passing through the overlapping part is not the same, one of the grinding discs 100 passes through the overlapping part first, and the other passes through the overlapping part, so that the two grinding discs 100 grind the overlapping part at the same time, but do not interfere with each other, so that the grinding surface 110 area of ​​the reinforced concrete component grinding device is increased. The overlapped portion of the two grinding discs 100 is the position between the two grinding discs 100. Transposed to the installation end face of the reinforced concrete component, it is the center position between the two diagonal main steel bars (provided that the radial dimensions of the two grinding discs 100 are substantially the same), so that the two grinding discs 100 can grind the center position of the reinforced concrete component at the same time, thereby reducing the amount of concrete remaining on the installation end face, making the processing more convenient, and making the installation end face of the reinforced concrete component smoother, without the need for secondary processing to grind the excess concrete.

[0057] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, the reinforced concrete component grinding device also includes: a rotating assembly 400, all grinding discs 100 and all driving assemblies 200 are connected to the rotating assembly 400, and the rotating assembly 400 is configured to: drive the grinding discs 100 and the driving assemblies 200 to move to the second diagonal direction, and respectively grind the two steel bars with the end faces of the installation ends exposed along the second diagonal direction.

[0058] It is worth understanding that the position of the grinding disc 100 is switched by the rotating assembly 400 without rotating the reinforced concrete component, so that the reinforced concrete component grinding device can grind the reinforced concrete component more conveniently and with higher grinding efficiency.

[0059] In this embodiment, the rotating assembly 400 includes a turntable and a rotating motor. The turntable is transmission-connected to the rotating motor and rotates under the drive of the rotating motor. An adjustment track 340 is fixed on the turntable to support the adjustment plate 320 through the adjustment track 340, and the drive assembly 200 and the grinding disc 100 are supported through the adjustment plate 320.

[0060] Reference Figure 1 and Figure 2As shown, in some specific embodiments of the present invention, the reinforced concrete component grinding device further includes: a horizontal moving component 500, which is used to drive the rotating component 400 to move along the length direction of the reinforced concrete component.

[0061] The reinforced concrete member is placed horizontally. In this embodiment, the horizontal moving assembly 500 includes a support frame arranged vertically on the ground, a horizontal moving member connected to the bottom of the support frame, a base supporting the horizontal moving member and the support frame, and an auxiliary sliding member connected to the base and inserted into the support frame, and the support frame is connected to the rotating assembly 400. The horizontal moving member is a screw slider structure, and the slider is connected to the support frame, and the screw is rotatably connected to the base.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A reinforced concrete component grinding device, used for grinding steel bars exposed at the mounting end of a reinforced concrete component, characterized in that: include: A grinding disc, comprising a grinding surface, avoidance holes each provided on the grinding surface, and a grinding assembly provided on the grinding surface, wherein the avoidance holes are used to avoid the steel bars at the mounting end, and the grinding assembly is used to grind the end surface of the mounting end; The driving assembly is drivingly connected to the grinding disc and is used to drive the grinding disc to rotate.

2. The reinforced concrete member grinding device according to claim 1, characterized in that: The driving assembly is configured to: drive the grinding disc to rotate eccentrically, define the projection along the axis perpendicular to the rotation axis as the projection plane, the projection formed by the eccentric rotation trajectory of the avoidance hole and the projection plane has an overlapping area, and the projection of the steel bar at the installation end on the projection plane is located within the overlapping area.

3. The reinforced concrete member grinding device according to claim 2, characterized in that: The inner circumferential surface of the avoidance hole is provided with rolling teeth.

4. The reinforced concrete member grinding device according to claim 1, characterized in that: The grinding assembly comprises edge grinding teeth and central grinding teeth, wherein the central grinding teeth surround the avoidance hole, and the edge grinding teeth surround the central grinding teeth.

5. The reinforced concrete member grinding device according to claim 4, characterized in that: The grinding surface has a mounting groove, the edge grinding tooth is mounted in the mounting groove, the edge grinding tooth comprises a main body and a grinding part rotatably connected to the main body, and at least part of the grinding part extends out of the notch of the mounting groove located on the grinding surface.

6. The reinforced concrete member grinding device according to claim 4, characterized in that: The central grinding tooth is convexly arranged on the grinding surface, and the central grinding tooth comprises a plurality of grinding teeth distributed along an arc line.

7. The reinforced concrete member grinding device according to claim 4, characterized in that: The edge grinding teeth are provided in a plurality, and the center grinding teeth are provided in a plurality. The plurality of edge grinding teeth are evenly distributed along the circumference of the avoidance hole, and the plurality of center grinding teeth are evenly distributed along the circumference of the avoidance hole.

8. The reinforced concrete member grinding device according to claim 1, characterized in that: The grinding discs are provided in two pieces, the driving assemblies are provided in two pieces, and the two driving assemblies are respectively connected to the two grinding discs by transmission; Wherein, the two grinding discs are configured to respectively grind and expose the two steel bars along the first diagonal direction of the end surfaces of the mounting ends.

9. The reinforced concrete member grinding device according to claim 8, characterized in that: Also includes: A spacing adjustment component, the grinding disc and the corresponding driving component are both arranged on the spacing adjustment component, and the spacing adjustment component is used to adjust the distance between the two grinding discs.

10. The reinforced concrete member grinding device according to claim 8, characterized in that: Also includes: A rotating assembly, all the grinding discs and all the driving assemblies are connected to the rotating assembly, and the rotating assembly is configured to: drive the grinding discs and the driving assembly to move to the second diagonal direction, and respectively grind and expose the two steel bars along the second diagonal direction of the end faces of the mounting ends.

Images