Precast concrete component chiseling device

Abstract

The invention relates to the technical field of precast concrete component processing, and particularly discloses a precast concrete component scabbling device which comprises a fixing seat, a driving mechanism is mounted on the fixing seat and provided with an output shaft, and a mounting seat is fixedly mounted on the output shaft of the driving mechanism. At least three supporting pieces are installed on the side, away from the driving mechanism, of the installation base, each supporting piece comprises a positioning assembly and a guide frame fixed to the installation base, a sliding transverse frame is installed on the guide frame, the sliding direction of the transverse frame is arranged in the radial direction of an output shaft of the driving mechanism, and a vertical frame is fixed to the transverse frame. According to the technical scheme, laitance on the inner wall of the anchor recess hole is stripped, so that a rough interface with staggered textures is formed on the inner wall of the anchor recess hole, the device is suitable for the anchor recess holes with different hole diameters, and the service life of the anchor recess hole is prolonged. The concrete prefabricated part scabbling device is high in universality.

Description

Technical Field

[0001] This invention relates to the manufacture of reinforced concrete precast frames and other concrete structural components, and particularly to the field of precast concrete component processing technology, specifically a precast concrete component roughening device. Background Technology

[0002] In the manufacturing of precast box girders, the quality of sealing the anchor holes directly affects the service life and stability of the precast box girders. Roughening, as an important pretreatment process before sealing the anchor holes, aims to remove the laitance on the inner wall of the anchor holes, expose the hard and stable coarse aggregate inside, improve the adhesion between the old and new concrete, enable the prestress to be effectively transferred, and ensure the long-term protection of the anchorage.

[0003] Existing chiseling devices include a power unit, a chisel drum, a blade holder, and striking blades. The output shaft of the power unit drives the chisel drum to rotate at high speed. The blade holder mounted on the side of the chisel drum rotates synchronously with the chisel drum. Under the action of centrifugal force, the blades on the blade holder strike the inner wall of the anchor hole, chiseling away the surface laitance of the anchor hole and forming a rough interface. However, the size of the chisel drum is fixed and can only be adapted to anchor holes of a specific diameter. For anchor holes of different diameters, the corresponding chisel drum needs to be replaced, resulting in poor versatility and a cumbersome replacement process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a roughening device for precast concrete components, which peels off the laitance on the inner wall of the anchor hole, so that the inner wall of the anchor hole forms a rough interface with interlaced textures. It is applicable to anchor holes of different diameters and has strong versatility.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a roughening device for precast concrete components, comprising a fixed base, a driving mechanism mounted on the fixed base, the driving mechanism having an output shaft, an mounting base fixedly mounted on the output shaft of the driving mechanism, and at least three support members mounted on the side of the mounting base away from the driving mechanism.

[0006] The support includes a positioning component and a guide frame fixed on the mounting base. A sliding crossbeam is mounted on the guide frame, and the sliding direction of the crossbeam is arranged radially along the output shaft of the drive mechanism. A vertical frame is fixed on the crossbeam, and the length direction of the vertical frame is parallel to the axial direction of the output shaft of the drive mechanism. A chisel is mounted on the vertical frame away from the crossbeam via the positioning component.

[0007] The chisel includes a support shaft, one end of which is mounted on a positioning assembly. A rotatable rotating wheel is mounted on the support shaft, and several protruding teeth are mounted on the outer periphery of the rotating wheel.

[0008] The axis of the rotating wheel is parallel to the axis of the output shaft of the drive mechanism, and the rotating wheel can rotate around its own axis while revolving with the mounting base.

[0009] As a preferred embodiment of the present invention, it further includes a connector, and the mounting base is located between the connector and the drive mechanism.

[0010] The support also includes an elastic element, the two ends of which are connected to the connector and the vertical frame, respectively.

[0011] As a preferred embodiment of the present invention, it also includes a loop rope, and all the vertical frames are located inside the loop rope.

[0012] As a preferred embodiment of the present invention, one of the vertical frames is fixed with no fewer than two second limiting members that can limit the movement of the loop rope, and the other vertical frames are fixed with one first limiting member that can limit the movement of the loop rope.

[0013] As a preferred embodiment of the present invention, a guide member is installed on the mounting base, and the connecting member can slide along the guide member. The sliding direction of the connecting member is parallel to the axial direction of the output shaft of the drive mechanism.

[0014] As a preferred embodiment of the present invention, the positioning component includes a card holder fixed on a vertical frame, the card holder having two or three slots, one of which has its length direction parallel to the axial direction of the output shaft of the drive mechanism, and the other slots having their length directions radially along the output shaft of the drive mechanism.

[0015] One end of the support shaft is detachably connected to any one of the slots.

[0016] As a preferred embodiment of the present invention, all the slots on the card holder are connected, bolts are installed on the card holder, and a limit groove is formed at one end of the support shaft.

[0017] The end of the support shaft is inserted into one of the slots, and one end of the bolt is locked in the limiting slot.

[0018] As a preferred embodiment of the present invention, a rotatable ring is mounted on the outside of the mounting base, and the ring and the fixed base are connected by a support base.

[0019] As a preferred embodiment of the present invention, the protruding tooth is a cemented carbide tooth, and the protruding tooth is fixed to the rotating wheel by snapping, welding or embedding.

[0020] The protruding teeth are distributed in multiple rows and columns on the outer circumference of the rotating wheel or spirally distributed along the circumference of the rotating wheel.

[0021] As a preferred embodiment of the present invention, the driving mechanism is an electric motor, a pneumatic motor, or a hydraulic motor.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. The concrete precast component roughening device of the present invention peels off the laitance on the inner wall of the anchor hole, forming a rough interface with interlaced textures on the inner wall of the anchor hole. It is applicable to anchor holes of different diameters and has strong versatility.

[0023] 2. In the concrete precast component roughening device of the present invention, the rotating wheel revolves around the mounting base while rotating around its own axis. The protruding teeth on the rotating wheel impact the inner wall of the anchor hole at dynamic and changing angles. The protruding teeth on the rotating wheel impact and peel off the laitance from the inner wall of the anchor hole from different directions. The irregular rotation of the rotating wheel avoids the repetition of the impact trajectory.

[0024] 3. In the concrete precast component roughening device of the present invention, the inner wall of the anchor hole reaches the set roughening depth, the ring rope is in a taut state, the impact of the protruding teeth on the inner wall of the anchor hole on the rotating wheel is reduced, avoiding excessive roughening of the inner wall of the anchor hole, and forming a rough interface with uniform depth and interlaced texture on the inner wall of the anchor hole, thereby improving the roughening quality of the anchor hole by the device.

[0025] 4. In the concrete precast component roughening device of the present invention, the annular rope is clamped on different second limiting members, thereby fine-tuning the roughening depth of the anchor hole and improving the roughening accuracy of the anchor hole of the concrete precast component roughening device.

[0026] 5. In the concrete precast component roughening device of the present invention, one end of the support shaft is connected to one of the slots, and the length direction of the slot is arranged radially along the output shaft of the drive mechanism. The protruding teeth on the rotating wheel continuously impact the planar area of ​​the concrete precast component that needs to be roughened, thereby achieving roughening of the planar area of ​​the concrete precast component and improving the applicability of the concrete precast component roughening device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure from one perspective; Figure 3 for Figure 1 Another perspective structural diagram; Figure 4 This is a schematic diagram of another embodiment of the present invention; Figure 5 This is a schematic diagram of another embodiment of the present invention; Figure 6This is a schematic diagram of the support member and the chisel member structure of the present invention.

[0028] In the diagram: 1. Fixed base, 2. Drive mechanism, 3. Support base, 4. Mounting base, 5. Ring, 6. Support component, 601. Guide frame, 602. Elastic component, 603. Vertical frame, 604. Horizontal frame, 7. First limiting component, 8. Bolt, 9. Chisel component, 901. Rotating wheel, 902. Protruding tooth, 903. Support shaft, 904. Limiting groove, 10. Card seat, 11. Second limiting component, 12. Ring rope, 13. Connector, 14. Guide component. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please see Figures 1-5 This embodiment discloses a roughening device for precast concrete components, including a fixed base 1, a drive mechanism 2 installed on the fixed base 1, the drive mechanism 2 having an output shaft, the output shaft of the drive mechanism 2 being fixedly connected to the middle position of one side of the mounting base 4, and at least three support members 6 installed on the side of the mounting base 4 away from the drive mechanism 2.

[0031] The support member 6 includes a positioning component and a guide frame 601 fixed on the mounting base 4. A sliding cross frame 604 is mounted on the guide frame 601. The sliding direction of the cross frame 604 is perpendicular to the axial direction of the output shaft of the drive mechanism 2, and the sliding direction of the cross frame 604 points towards the output shaft of the drive mechanism 2. One end of the cross frame 604 and the vertical frame 603 are fixedly connected. The other end of the vertical frame 603 is equipped with a chisel 9 through the positioning component. The length direction of the vertical frame 603 is parallel to the axial direction of the output shaft of the drive mechanism 2. The cross frame 604 is located between the chisel 9 and the mounting base 4.

[0032] The chisel 9 includes a support shaft 903, one end of which is mounted on a positioning assembly. A rotatable rotating wheel 901 is mounted on the support shaft 903 via a bearing or bushing. Several protruding teeth 902 are mounted on the outer periphery of the rotating wheel 901.

[0033] The axis of the rotating wheel 901 is parallel to the axis of the output shaft of the drive mechanism 2. The rotating wheel 901 can rotate around its own axis while revolving around the mounting base 4.

[0034] Furthermore, the output shaft of the drive mechanism 2 and the middle position on one side of the mounting base 4 are fixedly connected by a key connection, flange connection or interference fit.

[0035] Furthermore, the guide frame 601 is a fixed block with a sliding hole. One end of the cross frame 604 passes through the sliding hole, and the cross frame 604 can slide along the sliding hole.

[0036] The drive mechanism 2 used in this invention is a commonly used electric motor, pneumatic motor or hydraulic motor in the prior art. Its working method and structure are well known technologies and will not be described in detail here.

[0037] The working process and principle of this embodiment are as follows: Operators should clear debris around the anchor holes to prevent it from interfering with the roughening process.

[0038] The operator moves the fixed base 1 or the external robotic arm moves the fixed base 1 so that all the chisel pieces 9 enter the anchor hole, and the output shaft of the drive mechanism 2 and the central axis of the anchor hole are close to or coincide with each other. The operator makes the drive mechanism 2 work, and the drive mechanism 2 drives the mounting base 4 to rotate. The mounting base 4 drives all the support pieces 6 and chisel pieces 9 on it to make circular motion around the output shaft of the drive mechanism 2. Under the action of centrifugal force, the vertical frame 603 and the chisel pieces 9 move away from the output shaft of the drive mechanism 2, and the protruding teeth 902 on the rotating wheel 901 have linear velocity.

[0039] When the protruding teeth 902 on the rotating wheel 901 contact the inner wall of the anchor hole, the protruding teeth 902 are subjected to the tangential component of the frictional force. This tangential component drives the rotating wheel 901 to rotate on the support shaft 903, so that each protruding tooth 902 on the rotating wheel 901 contacts the inner wall of the anchor hole. The operator or the robotic arm pushes or pulls the fixed seat 1 inward or outward at a stable moving speed, so that all positions of the inner wall of the anchor hole can be roughened, avoiding roughening dead corners and avoiding excessive or incomplete roughening in some areas.

[0040] While the rotating wheel 901 revolves around the mounting base 4, it also rotates on its own axis. The protruding teeth 902 on the rotating wheel 901 impact the inner wall of the anchor hole at dynamic and changing angles. The protruding teeth 902 on the rotating wheel 901 impact and peel off the laitance from the inner wall of the anchor hole from different directions, forming a rough interface with interlaced textures on the inner wall of the anchor hole. The roughening operation covers a large area, and the irregular rotation of the rotating wheel 901 avoids the repetition of the impact trajectory.

[0041] The chisel 9 can move radially along the output shaft of the drive mechanism 2, making this precast concrete component chisel device suitable for anchor holes of different diameters. This precast concrete component chisel device has strong versatility.

[0042] Furthermore, if the operator finds that the laitance in the anchor hole is not completely removed, the speed of the output shaft of the drive mechanism 2 can be increased; if the operator finds that the anchor hole is excessively roughened, the speed of the output shaft of the drive mechanism 2 can be decreased.

[0043] Furthermore, the protruding teeth 902 are cemented carbide teeth, and the protruding teeth 902 are fixed to the rotating wheel 901 by snapping, welding or embedding. The protruding teeth 902 are distributed in multiple rows and columns on the outer periphery of the rotating wheel 901 or are spirally distributed along the circumference of the rotating wheel 901.

[0044] Preferably, the number of support members 6 is 3-7.

[0045] Preferably, the operator sets up a dust collection device outside the anchor hole to collect dust particles generated during the roughening process, thereby reducing dust particle pollution to the environment and protecting the health of the operator.

[0046] Example 2: like Figures 1-5 As shown, this embodiment discloses a precast concrete component roughening device, whose structure is roughly the same as that of Embodiment 1. The difference is that this embodiment also includes a connector 13, and the mounting base 4 is located between the connector 13 and the drive mechanism 2.

[0047] The support member 6 also includes an elastic member 602, the two ends of which are connected to the connector 13 and the vertical frame 603 respectively, and the elastic member 602 is in a taut state.

[0048] Furthermore, the elastic element 602 is a spring or an elastic band.

[0049] The working process and principle of this embodiment are as follows: When the drive mechanism 2 is not working, the elastic element 602 minimizes the distance between the chisel 9 and the output shaft of the drive mechanism 2, making it easier to insert the chisel 9 into the anchor hole.

[0050] Furthermore, a guide 14 is installed on the mounting base 4, and a guide hole is provided on the connector 13. The guide 14 passes through the guide hole, and the connector 13 can slide along the guide 14. The sliding direction of the connector 13 is parallel to the axial direction of the output shaft of the drive mechanism 2.

[0051] Furthermore, the height of a single protruding tooth 902 is 4.0mm-20.0mm, and the distance between two adjacent protruding teeth 902 is 10.0mm-50.0mm.

[0052] Example 3: like Figures 1-3 As shown, this embodiment discloses a precast concrete component roughening device, whose structure is roughly the same as that of Embodiment 2. The difference is that this embodiment also includes a ring rope 12, and all the vertical frames 603 are located inside the ring rope 12.

[0053] The working process and principle of this embodiment are as follows: During the process of the protruding teeth 902 on the rotating wheel 901 impacting the inner wall of the anchor hole, when the inner wall of the anchor hole reaches the set roughening depth, the ring rope 12 is in a taut state, the impact of the protruding teeth 902 on the inner wall of the anchor hole on the rotating wheel 901 is reduced, avoiding excessive roughening of the inner wall of the anchor hole, and forming a rough interface with uniform depth and interlaced texture on the inner wall of the anchor hole, thereby improving the roughening quality of the anchor hole by this device.

[0054] Furthermore, the loop rope 12 is a nylon rope or a steel wire rope.

[0055] Furthermore, the operator can replace the ring rope 12 with different circumferences to adapt to anchor holes of different diameters.

[0056] Example 4: like Figures 1-3 As shown, this embodiment discloses a precast concrete component roughening device, whose structure is roughly the same as that of Embodiment 3. The difference is that in this embodiment, one of the vertical frames 603 is fixed with no less than two second limiting members 11 arranged axially along the output shaft of the drive mechanism 2, which can limit the ring rope 12, and the other vertical frames 603 are all fixed with one first limiting member 7 that can limit the ring rope 12.

[0057] The first limiting component 7 is an arc-shaped rod, a retaining ring, or a retaining pin, and the second limiting component 11 is an arc-shaped rod, a retaining ring, or a retaining pin.

[0058] The working process and principle of this embodiment are as follows: The operator can adjust the roughening depth of the anchor hole by locking the loop rope 12 onto different second limiters 11, thereby improving the roughening accuracy of the anchor hole by the roughening device for this precast concrete component.

[0059] Example 5: like Figures 1-6 As shown, this embodiment discloses a precast concrete component roughening device, whose structure is roughly the same as that of Embodiment 2. The difference is that the positioning component in this embodiment includes a card seat 10 fixed on the vertical frame 603. The card seat 10 has two or three slots. The length direction of one slot is parallel to the axial direction of the output shaft of the drive mechanism 2, and the length direction of the other slots is arranged radially along the output shaft of the drive mechanism 2.

[0060] One end of the support shaft 903 can be detachably connected to any of the slots.

[0061] The working process and principle of this embodiment are as follows: When one end of the support shaft 903 is connected to one of the slots, and the length direction of the slot is set radially along the output shaft of the drive mechanism 2, the operator places the precast concrete component roughening device on the flat area of ​​the precast concrete component that needs to be roughened. The operator presses the fixing seat 1 in the direction of the precast concrete component, and then the operator makes the drive mechanism 2 work. The drive mechanism 2 drives the mounting seat 4 to rotate. The mounting seat 4 drives all the support parts 6 and roughening parts 9 on it to make circular motion around the output shaft of the drive mechanism 2. The protruding teeth 902 on the rotating wheel 901 contact the flat area of ​​the precast concrete component that needs to be roughened. The protruding teeth 902 on the rotating wheel 901 continuously hit the flat area of ​​the precast concrete component that needs to be roughened, thereby roughening the flat area of ​​the precast concrete component and improving the applicability of the precast concrete component roughening device.

[0062] When a portion of the planar area of ​​a precast concrete component is uneven, this uneven area can easily obstruct the rotation of the protruding teeth 902 on the rotating wheel 901. This causes the angular velocity of the chisel 9 rotating around the output shaft of the drive mechanism 2 to decrease, and the centrifugal force on the chisel 9 to decrease. The elastic element 602 drives the chisel 9 to move inward through the vertical frame 603 and the positioning assembly, so that the protruding teeth 902 on the rotating wheel 901 can bypass the uneven position of the precast concrete component. This enhances the anti-jamming performance and operational reliability of the precast concrete component chisel device.

[0063] Furthermore, the vertical frame 603, the horizontal frame 604, and the card holder 10 are integrally formed.

[0064] Example 6 like Figures 1-6 As shown, this embodiment discloses a precast concrete component roughening device, whose structure is roughly the same as that of embodiment five. The difference is that all the slots on the card seat 10 in this embodiment are connected. The card seat 10 is provided with threaded holes that connect the slots. Bolts 8 are installed in the threaded holes. A limit groove 904 is provided at one end of the support shaft 903. The operator can rotate the bolts 8 in the forward or reverse direction to make the length of the bolts 8 extending into the slots larger or smaller.

[0065] The end of the support shaft 903 is inserted into one of the slots, and one end of the bolt 8 is locked in the limiting slot 904.

[0066] The working process and principle of this embodiment are as follows: Bolt 8 makes it easy to install and remove the support shaft 903 on the bracket 10.

[0067] Example 7: like Figures 1-5As shown, this embodiment discloses a roughening device for precast concrete components. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, a rotatable ring 5 is installed outside the mounting base 4. The ring 5 and the fixed base 1 are connected by the support base 3.

[0068] Furthermore, the mounting base 4 is a circular plate, and the support members 6 are evenly distributed around the circumference of the circular plate. The circular plate is located inside the circular ring 5, and a bearing is installed between the circular ring 5 and the circular plate.

[0069] Furthermore, the output shaft of the drive mechanism 2 is connected to the middle position on one side of the mounting base 4 via a flexible shaft. The drive mechanism 2 is mounted on the fixed base 1 via a shock-absorbing pad. The flexible shaft and the shock-absorbing pad absorb and isolate the impact and vibration generated during the roughening process, thus extending the service life of the drive mechanism 2.

[0070] The working process and principle of this embodiment are as follows: Mounting base 4, ring 5 and support base 3 work together to provide an external constraint fulcrum for the output shaft of drive mechanism 2, avoiding the impact generated during the chiseling process of chiseling part 9, which could cause deformation of the output shaft of drive mechanism 2 or jamming of the bearing of drive mechanism 2, so that drive mechanism 2 can withstand long-term, high-intensity chiseling operations.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A roughening device for precast concrete components, characterized in that: Includes a fixed base (1), on which a drive mechanism (2) is mounted, the drive mechanism (2) has an output shaft, and a mounting base (4) is fixedly mounted on the output shaft of the drive mechanism (2). At least three support members (6) are mounted on the side of the mounting base (4) away from the drive mechanism (2). The support member (6) includes a positioning component and a guide frame (601) fixed on the mounting base (4). A sliding cross frame (604) is mounted on the guide frame (601). The sliding direction of the cross frame (604) is arranged radially along the output shaft of the drive mechanism (2). A vertical frame (603) is fixed on the cross frame (604). The length direction of the vertical frame (603) is parallel to the axial direction of the output shaft of the drive mechanism (2). A chisel (9) is mounted on the vertical frame (603) away from the cross frame (604) through the positioning component. The chisel (9) includes a support shaft (903), one end of which is mounted on a positioning assembly. A rotatable rotating wheel (901) is mounted on the support shaft (903), and a plurality of protruding teeth (902) are mounted on the outer periphery of the rotating wheel (901). The axis of the rotating wheel (901) is parallel to the axis of the output shaft of the drive mechanism (2). The rotating wheel (901) can rotate around its own axis while revolving with the mounting base (4).

2. The precast concrete component roughening device according to claim 1, characterized in that: It also includes a connector (13), and a mounting base (4) is located between the connector (13) and the drive mechanism (2); The support member (6) also includes an elastic member (602), the two ends of which are connected to the connector (13) and the vertical frame (603) respectively.

3. The precast concrete component roughening device according to claim 2, characterized in that: It also includes a loop rope (12), and all the uprights (603) are located within the loop rope (12).

4. The precast concrete component roughening device according to claim 3, characterized in that: One of the vertical frames (603) is fixed with no fewer than two second limiting members (11) that can limit the loop rope (12), and the other vertical frames (603) are fixed with one first limiting member (7) that can limit the loop rope (12).

5. The precast concrete component roughening device according to claim 2, characterized in that: A guide (14) is installed on the mounting base (4), and the connector (13) can slide along the guide (14). The sliding direction of the connector (13) is parallel to the axial direction of the output shaft of the drive mechanism (2).

6. The precast concrete component roughening device according to claim 2, characterized in that: The positioning component includes a card holder (10) fixed on the vertical frame (603). The card holder (10) has two or three slots. The length direction of one slot is parallel to the axial direction of the output shaft of the drive mechanism (2), and the length direction of the other slots is arranged radially along the output shaft of the drive mechanism (2). One end of the support shaft (903) is detachably connected to any one of the slots.

7. The precast concrete component roughening device according to claim 6, characterized in that: All the slots on the card holder (10) are connected, and bolts (8) are installed on the card holder (10). A limit groove (904) is opened at one end of the support shaft (903). The end of the support shaft (903) is inserted into one of the slots, and one end of the bolt (8) is locked in the limiting slot (904).

8. The precast concrete component roughening device according to claim 1, characterized in that: A rotatable ring (5) is mounted on the outside of the mounting base (4), and the ring (5) and the fixed base (1) are connected by a support base (3).

9. The precast concrete component roughening device according to claim 1, characterized in that: The protruding tooth (902) is a cemented carbide tooth, and the protruding tooth (902) is fixed to the rotating wheel (901) by snapping, welding or embedding. The protruding teeth (902) are distributed in multiple rows and columns on the outer periphery of the rotating wheel (901) or spirally distributed along the circumference of the rotating wheel (901).

10. The precast concrete component roughening device according to claim 1, characterized in that: The drive mechanism (2) is an electric motor, a pneumatic motor, or a hydraulic motor.

Images