3D printing device for dam slope protection building

Abstract

A 3D printing device for dam slope protection construction relates to 3D printing equipment and comprises a printing nozzle and a hose correspondingly communicated with the printing nozzle. The device comprises a rack, a cantilever guide rail, a lifting device and a printing trolley, a lifting device capable of vertically ascending and descending along the rack is installed on one side of the rack, a cantilever guide rail is installed on one side of the lifting device, and a rail body of the cantilever guide rail is in sliding fit with a printing trolley used for carrying a printing nozzle to conduct additive printing. A driving mechanism for driving the printing trolley to move along the cantilever guide rail body is mounted at one end of the cantilever guide rail body; a walking guide rail which is correspondingly vertical to the cantilever guide rail is arranged at the bottom of the rack; the printing trolley moves along the cantilever guide rail, and the movable space is large; the rack is in sliding fit with the top and the bottom of the walking guide rail, on one hand, the rack can smoothly walk, and on the other hand, the rack can be prevented from accidentally overturning due to bearing of large lateral force.

Description

Technical Field

[0001] The utility model relates to 3D printing equipment, in particular to a 3D printing device for building a dam slope protection. Background Technique

[0002] As is well known, the functions of a dam slope protection mainly include preventing water flow erosion. By using hard materials such as stones and concrete, the scouring of water flow on the soil body can be reduced, protecting the integrity and stability of the dam structure. In addition, through physical reinforcement measures such as geogrids and soil nail walls, the overall stability and bearing capacity can be improved. A good slope protection can reduce the maintenance cost, and for the slope protection near sidewalks or traffic facilities, it can also play a certain role in safety isolation to avoid accidents. At the same time, a good slope protection can improve the flood control ability of the dam, protecting the surrounding areas from flood attacks. In recent years, with the gradual maturity of concrete 3D printing technology, the construction of slope protection by 3D printing has gradually emerged.

[0003] Chinese Patent (Publication No.: CN214942477U) discloses a mobile 3D printing vehicle. The patent includes a vehicle body, a linear driver is arranged on the upper part of the vehicle body, a vertical telescopic rod is drivingly connected inside the linear driver, two limit blocks are fixed at the upper position of the vertical telescopic rod, a support seat is sleeved on the vertical telescopic rod, the support seat is located between the two limit blocks, a beam frame is fixed on the side of the support seat, a telescopic cross beam is arranged inside the beam frame, a nozzle mounting seat is arranged at one end of the telescopic cross beam away from the beam frame, and a discharging nozzle is fixed inside the nozzle mounting seat. When printing, the height position of the nozzle is controlled by the vertical telescopic rod, and the longitudinal stroke of the nozzle is controlled by the telescopic movement of the telescopic cross beam in this patent structure. However, the strokes of both the vertical telescopic rod and the telescopic cross beam have relatively large limitations. At the same time, this patent structure drives the overall structure to move horizontally over a long distance through the vehicle body, which has high requirements for the flatness of the site and cannot meet the needs of slope protection printing. Content of the Utility Model

[0004] In order to overcome the deficiencies in the background technique, the utility model discloses a 3D printing device for building a dam slope protection.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical scheme:

[0006] A 3D printing device for building a dam slope protection includes a printing nozzle and a hose corresponding to and communicating with the printing nozzle. It includes a frame, a cantilever guide rail, a lifting device and a printing trolley. One side of the frame is installed with a lifting device that can vertically lift along the frame. One side of the lifting device is installed with a cantilever guide rail. A printing trolley for carrying the printing nozzle for additive printing is slidably matched with the rail body of the cantilever guide rail. A driving mechanism for driving the printing trolley to move along the rail body of the cantilever guide rail is installed at one end of the rail body of the cantilever guide rail. A traveling guide rail perpendicular to the cantilever guide rail is arranged at the bottom of the frame.

[0007] The lifting device includes a lead screw, a guide rod, and a mounting bracket. The lead screw and the guide rod are respectively vertically and firmly connected to the machine frame. One end of the cantilever guide rail is correspondingly connected to the mounting bracket. An opening is provided at one end of the mounting bracket, and a first nut that is in threaded cooperation with the lead screw is rotatably connected corresponding to the opening position. The mounting bracket is equipped with a first motor that is correspondingly drivingly connected to the first nut. The other end of the mounting bracket is slidably mated with the guide rod.

[0008] The driving mechanism includes synchronous pulleys that are respectively rotatably connected to both ends of the cantilever guide rail. Synchronous belts are fitted to the synchronous pulleys at both ends of the cantilever guide rail. The printing carriage is firmly connected to the body of the synchronous belt. A driving motor for driving the corresponding synchronous pulley is installed at one end of the cantilever guide rail.

[0009] Preferably, the cantilever guide rail is correspondingly connected to the mounting bracket through a connecting frame.

[0010] Preferably, the connecting frame is rotatably connected to the mounting bracket, and the mounting bracket is equipped with a second motor for driving the rotation of the connecting frame.

[0011] Preferably, a second nut is movably inserted into one end of the connecting frame away from the first nut, and the second nut is in threaded connection with the lead screw. A connecting sleeve is movably sleeved between the first nut and the second nut on the lead screw. One end of the connecting sleeve is coaxially and firmly connected to the first nut, and the other end is drivingly connected to the second nut through a spline. A spring for floatingly supporting the second nut is sleeved on the body of the connecting sleeve.

[0012] Preferably, a steel cable is provided between one end of the cantilever guide rail away from the mounting bracket and the connecting frame.

[0013] Preferably, the cantilever guide rail is correspondingly hinged to the connecting frame through a pin shaft.

[0014] Preferably, first rollers that are in rolling contact with the guide rod are rotatably connected to both sides of the mounting bracket corresponding to the guide rod.

[0015] Preferably, brackets that are parallel to the guide rod are firmly connected to the top and bottom of one end of the mounting bracket corresponding to the guide rod. Second rollers that are in rolling contact with the guide rod are rotatably connected to the ends of the brackets away from the mounting bracket.

[0016] Due to the adoption of the above - mentioned technical solution, the utility model has the following beneficial effects:

[0017] A 3D printing device for building a dam slope protection, with a simple structure and easy to assemble. On one side of the frame, there is a lifting device that can vertically lift along the frame. On one side of the lifting device, there is a cantilever guide rail. A printing carriage for carrying a printing nozzle for additive printing is slidably engaged with the rail body of the cantilever guide rail. At one end of the rail body of the cantilever guide rail, there is a driving mechanism for driving the printing carriage to move along the rail body of the cantilever guide rail. The printing carriage moves along the cantilever guide rail, and the movable space is large.

[0018] At the bottom of the frame, there is a traveling guide rail perpendicular to the cantilever guide rail, that is, the frame can move linearly along the traveling guide rail, and the traveling guide rail can be suspended, thus reducing the requirement for the ground flatness. The frame is slidably engaged with both the top and bottom of the traveling guide rail. On the one hand, it enables the frame to move smoothly, and on the other hand, it can prevent the frame from accidentally tipping over due to large lateral forces.

[0019] The cantilever guide rail is correspondingly connected to the mounting bracket through a connecting frame. Through the mounting bracket, transitional connection is achieved, which can effectively reduce the installation difficulty. At one end of the connecting frame away from the first nut, a second nut is movably inserted, and the second nut is correspondingly threadedly connected to the lead screw. The spaced arrangement of the first nut and the second nut can effectively reduce the damage to the lead screw caused by the eccentric load of the first nut. While rotating, the second nut can adaptively float up and down under the action of the spring, which can prevent the first nut and the second nut from accidentally jamming due to different fitting clearances with the lead screw.

[0020] The cantilever guide rail is correspondingly hinged to the connecting frame through a pin shaft, that is, the angular end of the cantilever guide rail can be adjusted by adjusting the length of the steel cable, so that the cantilever guide rail can be parallel to the printing plane, thereby reducing the printing difficulty and effectively improving the printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a structural schematic diagram of the present invention;

[0023] Figure 3 is a structural schematic diagram of the lifting device;

[0024] Figure 4 is a mounting structural schematic diagram of the second nut;

[0025] Figure 5 is a mounting structural schematic diagram of the second roller.

[0026] In the figure: 1, frame; 2, cantilever guide rail; 3, lifting device; 3-1, lead screw; 3-2, guide rod; 3-3, mounting bracket; 3-4, first nut; 3-5, first motor; 3-6, second nut; 3-7, connecting sleeve; 3-8, spring; 3-9, first roller; 3-10, second roller; 4, printing carriage; 5, driving mechanism; 6, printing nozzle; 7, hose; 8, connecting frame; 9, second motor; 10, steel cable. Detailed implementation mode

[0027] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0028] Embodiment 1, in combination with the attached Figures 1-2 , a 3D printing device for building the slope protection of a dam, includes a printing nozzle 6 and a hose 7 corresponding and communicating with the printing nozzle 6, that is, when printing the slope protection, the printing nozzle 6 can be correspondingly communicated with a concrete pump through the hose 7, and the additive printing is carried out in a predetermined area by controlling the moving track of the printing nozzle to build the slope protection;

[0029] It includes a frame 1, a cantilever guide rail 2, a lifting device 3 and a printing carriage 4; a lifting device 3 capable of vertically lifting along the frame 1 is installed on one side of the frame 1, a cantilever guide rail 2 is installed on one side of the lifting device 3, a printing carriage 4 for carrying the printing nozzle 6 for additive printing is slidably matched with the rail body of the cantilever guide rail 2, a driving mechanism 5 for driving the printing carriage 4 to move along the rail body of the cantilever guide rail 2 is installed at one end of the rail body of the cantilever guide rail 2, and the printing carriage 4 moves along the cantilever guide rail 2, with a large movable space; the driving mechanism 5 includes synchronous belt wheels correspondingly rotatably connected to both ends of the cantilever guide rail 2, the synchronous belt wheels at both ends of the cantilever guide rail 2 are matched with a synchronous belt, the printing carriage 4 is firmly connected to the belt body of the synchronous belt, and a driving motor for driving the corresponding synchronous belt wheel is installed at one end of the cantilever guide rail 2, that is, the driving motor drives the synchronous belt wheel, and the synchronous belt wheel drives the synchronous belt to drive the printing carriage 4 to move along the rail body of the cantilever guide rail 2; the structure is simple and the layout is compact, which can ensure the effective moving stroke of the printing carriage 4;

[0030] It should be noted that the driving motor is installed at one end where the cantilever guide rail 2 is correspondingly connected to the lifting device 3, so as to effectively reduce the bending moment borne by the cantilever guide rail 2 and be beneficial to improving the overall stability;

[0031] The bottom of the frame 1 is provided with a traveling guide rail 11 corresponding vertically to the cantilever guide rail 2, that is, the frame 1 can move linearly along the traveling guide rail 11;

[0032] Working principle: The lifting device 3 drives the cantilever guide rail 2 to lift, thereby adjusting the height position of the printing nozzle 6 to achieve the purpose of layer-by-layer printing from low to high; the driving mechanism 5 drives the printing carriage 4 to move along the body of the cantilever guide rail 2, thereby realizing the longitudinal movement of the printing nozzle 6; by controlling the movement of the frame 1 along the traveling guide rail 11, the lateral movement of the printing nozzle 6 is realized;

[0033] It should be noted that the frame 1 is slidably matched with the top and bottom of the traveling guide rail 11. On the one hand, it enables the frame 1 to move smoothly, and on the other hand, it can prevent the frame 1 from accidentally tipping over due to a large lateral force.

[0034] Embodiment 2, in combination with the attached Figures 1-3 , a 3D printing device for building a dam slope protection, different from Embodiment 1 in that on the basis of Embodiment 1, the lifting device 3 includes a lead screw 3-1, a guide rod 3-2 and a mounting bracket 3-3. The lead screw 3-1 and the guide rod 3-2 are respectively vertically and firmly connected to the frame 1; one end of the cantilever guide rail 2 is correspondingly connected to the mounting bracket 3-3, and the mounting bracket 3-3 drives the cantilever guide rail 2 to lift and move;

[0035] One end of the mounting bracket 3-3 is provided with an opening, and a first nut 3-4 corresponding to the lead screw 3-1 is rotationally connected at the position corresponding to the opening. The mounting bracket 3-3 is equipped with a first motor 3-5 corresponding to the first nut 3-4 for driving connection. By driving the first nut 3-4 to rotate by the first motor 3-5, the first nut 3-4 moves vertically upward or downward along the lead screw 3-1, thereby driving the mounting bracket 3-3 to move vertically upward or downward along the lead screw 3-1;

[0036] It should be noted that the first motor 3-5 is drivingly connected to the first nut 3-4 through a speed reducer, which can effectively increase the driving load and at the same time facilitate controlling the lifting distance of the mounting bracket 3-3 to improve the printing accuracy;

[0037] The other end of the mounting bracket 3-3 is slidably matched with the guide rod 3-2, that is, the rotation of the mounting bracket 3-3 is restricted by the cooperation between the mounting bracket 3-3 and the guide rod 3-2;

[0038] The cantilever guide rail 2 is connected to the mounting frame 3-3 via the connecting frame 8, and the transition connection is achieved via the mounting frame 3-3, which can effectively reduce the difficulty of installation; the connecting frame 8 is rotatably connected to the mounting frame 3-3, and the mounting frame 3-3 is equipped with a second motor 9 for driving the connecting frame 8 to rotate, that is, the second motor 9 can be connected to the connecting frame 8 by gear transmission or belt transmission, and the connecting frame 8 is driven to rotate by the second motor 9, and the connecting frame 8 drives the cantilever guide rail 2 to deflect along the lead screw 3-1, which can further improve the flexibility of the movement of the printing carriage 4 to meet the needs of complex trajectory printing;

[0039] Furthermore, a second nut 3-6 is movably inserted into the end of the connecting frame 8 that is away from the first nut 3-4, and the second nut 3-6 is threadedly connected to the screw 3-1, and a connecting sleeve 3-7 is movably sleeved between the first nut 3-4 and the second nut 3-6 corresponding to the screw 3-1. One end of the connecting sleeve 3-7 is coaxially and tightly connected to the first nut 3-4, and the other end is transmission connected to the second nut 3-6 correspondingly through a spline, that is, the first nut 3-4 drives the second nut 3-6 to rotate synchronously through the connecting sleeve 3-7; the connecting sleeve 3-7 is sleeved with a spring 3-8 for floatingly supporting the second nut 3-6; the first nut 3-4 and the second nut 3-6 are arranged at intervals, which can effectively reduce the damage to the screw 3-1 caused by the overload of the first nut 3-4, and the second nut 3-6 can adaptively float up and down under the action of the spring 3-8 while rotating, which can avoid the first nut 3-4 and the second nut 3-6 from accidentally getting stuck due to the different matching clearances with the screw 3-1.

[0040] Embodiment 3, in combination with Figures 1-2 , a 3D printing device for dam slope protection construction, based on Example 2, a steel cable 10 is provided between the end of the cantilever guide rail 2 away from the mounting frame 3-3 and the connecting frame 8, that is, the structural strength and stability of the cantilever guide rail 2 are improved by the inclined steel cable 10, which is conducive to improving the printing accuracy;

[0041] The cantilever guide rail 2 is hinged to the connecting frame 8 via a pin shaft, that is, the angle end of the cantilever guide rail 2 can be adjusted by adjusting the length of the steel cable 10, so that the cantilever guide rail 2 can be parallel to the printing plane, thereby reducing the printing difficulty and effectively improving the printing efficiency.

[0042] Embodiment 4, in combination with Figure 1 and 5 , a 3D printing device for dam slope protection construction, based on Example 2, the mounting frame 3-3 corresponds to the guide rod 3-2 on both sides of the first roller 3-9 that is in rolling contact with the guide rod 3-2, and the rotation of the mounting frame 3-3 is limited by the rolling cooperation between the two first rollers 3-9 and the two sides of the guide rod 3-2, and at the same time, it can ensure that the mounting frame 3-3 can move vertically up and down smoothly;

[0043] Furthermore, brackets parallel to the guide rod 3-2 are fixedly connected to the top and bottom of one end of the mounting bracket 3-3 corresponding to the guide rod 3-2. A second roller 3-10 that is in rolling contact with the guide rod 3-2 is rotatably connected to the end of the bracket away from the mounting bracket 3-3. That is, by the rolling contact between the second roller 3-10 and the guide rod 3-2, the bending moment borne by the lead screw 3-1 can be effectively shared, thereby improving the overall service life.

[0044] The parts not detailed in the present utility model are prior art. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, aiming to encompass all changes falling within the meaning and scope of the equivalent elements in the present utility model.

Claims

1. A 3D printing device for dam slope protection construction, comprising a printing nozzle (6) and a hose (7) correspondingly connected to the printing nozzle (6); wherein: The invention comprises a frame (1), a cantilever guide rail (2), a lifting device (3) and a printing carriage (4); the frame (1) is provided with a lifting device (3) capable of vertically lifting and lowering along the frame (1); the lifting device (3) is provided with a cantilever guide rail (2) on one side; the cantilever guide rail (2) is slidably matched with a printing carriage (4) for carrying a printing nozzle (6) for additive printing; and a driving mechanism (5) for driving the printing carriage (4) to move along the cantilever guide rail (2) is provided at one end of the cantilever guide rail (2); The lifting device (3) comprises a lead screw (3-1), a guide rod (3-2) and a mounting frame (3-3); the lead screw (3-1) and the guide rod (3-2) are respectively and vertically fastened to the frame (1); one end of the cantilever guide rail (2) is connected to the mounting frame (3-3); one end of the mounting frame (3-3) is provided with an opening, and a first nut (3-4) corresponding to the thread of the lead screw (3-1) is rotatably connected to the position of the opening, and a first motor (3-5) corresponding to the first nut (3-4) is installed on the mounting frame (3-3); the other end of the mounting frame (3-3) is slidably matched to the guide rod (3-2); the bottom of the frame (1) is provided with a walking rail (11) corresponding to the cantilever guide rail (2) and vertical; The driving mechanism (5) comprises synchronous pulleys correspondingly connected to the two ends of the cantilever guide rail (2) for rotation, the synchronous pulleys at the two ends of the cantilever guide rail (2) are matched with a synchronous belt, the printing carriage (4) is tightly connected to the synchronous belt body, and a driving motor for driving the corresponding synchronous pulley is installed at one end of the cantilever guide rail (2).

2. The 3D printing device for dam slope protection construction according to claim 1, characterized in that: The cantilever guide rail (2) is correspondingly connected to the mounting frame (3-3) via a connecting frame (8).

3. The 3D printing device for dam slope protection construction as claimed in claim 2 is characterized by: The connecting frame (8) is rotationally connected to the mounting frame (3-3) in correspondence, and the mounting frame (3-3) is equipped with a second motor (9) for driving the connecting frame (8) to rotate.

4. The 3D printing device for dam slope protection construction as claimed in claim 3 is characterized by: A second nut (3-6) is movably inserted into one end of the connecting frame (8) away from the first nut (3-4), and the second nut (3-6) is threadedly connected to the lead screw (3-1) in a corresponding manner. A connecting sleeve (3-7) is movably sleeved between the lead screw (3-1) and the first nut (3-4) and the second nut (3-6). One end of the connecting sleeve (3-7) is coaxially and tightly connected to the first nut (3-4), and the other end is transmission-connected to the second nut (3-6) via a spline. A spring (3-8) for floatingly supporting the second nut (3-6) is sleeved on the connecting sleeve (3-7).

5. The 3D printing device for dam slope protection construction as claimed in claim 4, characterized in that: A steel cable (10) is provided between the end of the cantilever guide rail (2) facing away from the mounting frame (3-3) and the connecting frame (8).

6. The 3D printing device for dam slope protection construction as claimed in claim 5, characterized in that: The cantilever guide rail (2) is correspondingly hinged to the connecting frame (8) via a pin shaft.

7. The 3D printing device for dam slope protection construction according to claim 1, characterized in that: Both sides of the mounting frame (3-3) corresponding to the guide rod (3-2) are rotatably connected to first rollers (3-9) that are in rolling contact with the guide rod (3-2).

8. The 3D printing device for dam slope protection construction according to claim 7, characterized in that: The top and bottom of one end of the mounting frame (3-3) corresponding to the guide rod (3-2) are both fastened to brackets corresponding to and parallel to the guide rod (3-2), and one end of the bracket facing away from the mounting frame (3-3) is rotatably connected to a second roller (3-10) in rolling contact with the guide rod (3-2).

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