Water jet concrete cutting machine and construction method

Abstract

The present invention belongs to the technical field of concrete cutting, specifically a water jet concrete cutting machine and a construction method. A water jet concrete cutting machine includes a traveling vehicle, a preliminary cutting mechanism, a seam expansion mechanism, a chamfering mechanism and a guide mechanism; a water jet concrete cutting construction method includes: laying out lines, adjusting the travel direction, traveling and cutting; compared with the existing technology, the present invention can complete the operations of concrete cutting and chamfering in one go, realizing an automated process from preliminary cutting to fine seam expansion to chamfering, speeding up the construction progress, and at the same time, the concrete is in a curing period, and the use of water cutting will not affect the strength of the concrete.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete cutting, in particular to a water jet concrete cutting machine and a construction method. Background Art

[0002] In engineering construction, large areas of concrete floors, especially airport runways, need to be cut during construction to prevent cracking caused by the release of concrete stress. The traditional cutting method is divided into three steps. First, the initial cutting is carried out when the concrete has been cured for 7 days, with a cutting depth of about 15 cm and a seam width of 2 mm. After the initial cutting is completed, the seam is widened before curing for 20 days, and the range of about 30 mm close to the ground is widened to 8 mm to form a gap with a square cross-section. Subsequently, chamfering is performed and filler is added to the seam after chamfering. The traditional process requires three cutting operations, the process is complicated, and the construction period is long. The present invention completes the cutting operation in one go through water cutting. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention develops a water jet concrete cutting machine and construction method, which can complete the operations of concrete cutting and chamfering in one go, realizing an automated process from preliminary cutting to fine seam expansion and chamfering, thereby speeding up the construction progress. At the same time, the concrete is in the curing period, and the use of water cutting will not affect the strength of the concrete.

[0004] The technical solution to the technical problem solved by the present invention is as follows: a water jet concrete seam cutting machine, comprising a traveling vehicle, a preliminary cutting mechanism, a seam expanding mechanism, a chamfering mechanism and a guide mechanism, wherein the traveling vehicle is provided with a water tank, and the water tank is provided with a water inlet, and the preliminary cutting mechanism, the seam expanding mechanism and the chamfering mechanism are arranged in sequence in the opposite direction of the traveling vehicle, and the preliminary cutting mechanism comprises a preliminary cutting nozzle and a first supercharger, wherein the preliminary cutting nozzle is connected to the traveling vehicle, and the preliminary cutting nozzle is connected to the first supercharger through a hose, and the first supercharger is connected to the water tank through a conduit; the seam expanding mechanism comprises An expansion nozzle, a second supercharger and a mounting hole, the mounting hole array is arranged on the traveling vehicle, the expansion nozzle is detachably connected to the mounting hole, the expansion nozzle is connected to the second supercharger through a hose, and the second supercharger is connected to the water tank through a conduit; the chamfering mechanism includes a chamfering nozzle, a third supercharger, a distance adjustment mechanism and an angle adjustment mechanism, the chamfering nozzle is rotatably connected to the distance adjustment mechanism, the angle adjustment mechanism is connected to the chamfering nozzle, the chamfering nozzle is connected to the third supercharger through a hose, and the third supercharger is connected to the water tank through a conduit.

[0005] Preferably, the distance adjustment mechanism includes a slider, a slide groove, a gear, a rack and a servo motor, the slide groove is arranged on the traveling vehicle, the slider is slidably connected in the slide groove, the chamfering nozzle is rotatably connected to the slider, the rack is arranged on the slider, the gear is rotatably connected in the slide groove and meshed with the rack, the servo motor is connected to the traveling vehicle through a flange, and the gear is connected to the output end of the servo motor.

[0006] Preferably, the angle adjustment mechanism includes a rotating part, an electric cylinder and a connecting part, the rotating part is connected to the chamfering nozzle, the output end of the electric cylinder is rotatably connected to the other end of the rotating part, the electric cylinder is rotatably connected to the connecting part, and the connecting part is connected to the traveling vehicle.

[0007] Preferably, the guiding mechanism includes a laser emitter, a laser receiving panel, a reflector and a processor, the laser receiving panel is connected to a section of the traveling vehicle close to the direction of travel, the laser emitter is connected to a position near the bottom of the laser receiving panel, the processor is connected to the traveling vehicle, and the reflector is detachably connected to the traveling vehicle.

[0008] Preferably, a counterweight is provided on the traveling vehicle.

[0009] A construction method for water jet concrete cutting, using the water jet concrete cutting machine to perform cutting, comprises the following steps:

[0010] Step 1: Lay out the line;

[0011] Step 2: Place the water jet concrete cutter at the cutting starting point, remove the reflector, and place it at the cutting end point;

[0012] Step 3: Turn on the laser transmitter and adjust the height and angle of the reflector until the laser signal is received on the laser receiving panel. Further adjust the reflector until the laser signal on the laser receiving panel and the laser emission point are in the same vertical plane.

[0013] Step 4: The water jet concrete cutter starts cutting. The initial cutting nozzle cuts a gap of 150mm in depth and 2mm in width in the concrete. The expansion nozzle expands and cuts a gap of 30mm in depth and 8-10mm in width. The spacing and angle of the chamfering nozzles are adjusted, and the chamfering nozzles complete the chamfering cutting.

[0014] Preferably, in step 4, the travel speed of the water jet concrete cutting machine is 4.5-6 meters per minute.

[0015] Preferably, in step 4, the spacing of the chamfering nozzles is adjusted by controlling a servo motor, which drives the gear to rotate, and the rack meshing with the gear drives the slider to slide in the slide groove to complete the spacing adjustment.

[0016] Preferably, in step 4, the angle of the chamfering nozzle is adjusted by controlling an electric cylinder, which extends and retracts to drive a rotating part and then drives the chamfering nozzle to complete the angle adjustment.

[0017] The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects:

[0018] 1. This invention can replace the traditional cutting process of cutting in three steps, and can complete the entire cutting and chamfering operation in one go after 7 days of concrete curing, thus speeding up the construction progress;

[0019] 2. By setting a guide device, the direction of travel of the traveling vehicle can be controlled. When the laser point on the laser receiving panel and the laser emitting point are in the same vertical plane, the traveling vehicle moves at a speed of 4.5-6 meters per minute for cutting. When the processor detects that the laser receiving point on the receiver and the laser emitting point are not in the same vertical plane, it will automatically control the traveling vehicle to fine-tune the direction, realizing automated cutting, reducing labor costs and saving costs.

[0020] 3. By setting the counterweight block, the stability during the cutting process is improved and the cutting accuracy is guaranteed;

[0021] 4. By setting the mounting holes, the expansion nozzles can be increased or decreased according to the width of the expansion seam, which increases the use scenarios of the equipment;

[0022] 5. After the chamfering nozzles complete the chamfering, the water pressures from the two nozzles offset each other, which will not damage the concrete on the side walls of the gap;

[0023] 6. The present invention does not generate high temperature during the cutting process, thus avoiding thermal damage to the concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the present invention;

[0025] Figure 2 It is a right side view of the present invention;

[0026] Figure 3 for Figure 2 Cross-sectional view in the AA direction;

[0027] Figure 4 It is the overall structural diagram of the present invention;

[0028] Figure 5 for Figure 4 A partial enlarged view of area A in the middle;

[0029] Figure 6 A top view of the present invention;

[0030] Figure 7 This is a structural diagram of the slider, gear and rack.

[0031] Among them: 1. Traveling vehicle; 101. Counterweight; 2. Water tank; 21. Water inlet; 3. Initial cutting nozzle; 31. First booster; 4. Seam expansion nozzle; 41. Second booster; 42. Mounting hole; 5. Chamfering nozzle; 51. Third booster; 52. Slider; 521. Slide; 53. Gear; 54. Rack; 55. Servo motor; 56. Rotating part; 57. Electric cylinder; 58. Connector; 6. Laser transmitter; 7. Laser receiving panel; 8. Reflector; 9. Processor; 10. Hose; 11. Catheter. DETAILED DESCRIPTION

[0032] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0033] Example 1

[0034] See also Figures 1 to 7 A water jet concrete seam cutting machine comprises a traveling vehicle 1, a preliminary cutting mechanism, a seam expansion mechanism, a chamfering mechanism and a guide mechanism. The traveling vehicle 1 is provided with a water tank 2, and the water tank 2 is provided with a water inlet 21. The preliminary cutting mechanism, the seam expansion mechanism and the chamfering mechanism are arranged in sequence along the opposite direction of the traveling vehicle 1. The preliminary cutting mechanism comprises a preliminary cutting nozzle 3 and a first supercharger 31. The preliminary cutting nozzle 3 is connected to the traveling vehicle 1, and the preliminary cutting nozzle 3 is connected to the first supercharger 31 through a hose 10. The first supercharger 31 is connected to the water tank 2 through a conduit 11; the seam expansion mechanism comprises a seam expansion nozzle 4, a second supercharger 41 and an installation nozzle. The mounting hole 42 is arranged in an array on the traveling vehicle 1, and the expansion nozzle 4 is detachably connected to the mounting hole 42. The expansion nozzle 4 is connected to the second booster 41 through a hose 10, and the second booster 41 is connected to the water tank 2 through a conduit 11; the chamfering mechanism includes a chamfering nozzle 5, a third booster 51, a distance adjustment mechanism and an angle adjustment mechanism. The chamfering nozzle 5 is rotatably connected to the distance adjustment mechanism, and the angle adjustment mechanism is connected to the chamfering nozzle 5. The chamfering nozzle 5 is connected to the third booster 51 through a hose 10, and the third booster 51 is connected to the water tank 2 through a conduit 11.

[0035] like Figure 1 、 Figure 3 、 Figure 5 and Figure 7As shown, the distance adjustment mechanism includes a slider 52, a slide 521, a gear 53, a rack 54 and a servo motor 55. The slide 521 is set on the traveling vehicle 1, and the slider 52 is slidably connected in the slide 521. The chamfering nozzle 5 is rotatably connected to the slider 52. The rack 54 is set on the slider 52. The gear 53 is rotatably connected in the slide 521 and meshed with the rack 54. The servo motor 55 is connected to the traveling vehicle 1 through a flange, and the gear 53 is connected to the output end of the servo motor 55.

[0036] like Figure 4 and Figure 5 As shown, the angle adjustment mechanism includes a rotating member 56, an electric cylinder 57 and a connecting member 58. The rotating member 56 is connected to the chamfering nozzle 5, the output end of the electric cylinder 57 is rotatably connected to the other end of the rotating member 56, the electric cylinder 57 is rotatably connected to the connecting member 58, and the connecting member 58 is connected to the traveling vehicle 1.

[0037] like Figure 2 and Figure 6 As shown, the guiding mechanism includes a laser emitter 6, a laser receiving panel 7, a reflector 8 and a processor 9. The laser receiving panel 7 is connected to a section of the traveling vehicle 1 close to the direction of travel, the laser emitter 6 is connected to a position near the bottom of the laser receiving panel 7, the processor 9 is connected to the traveling vehicle 1, and the reflector 8 is detachably connected to the traveling vehicle 1.

[0038] like Figure 1 and Figure 4 As shown, a counterweight 101 is provided on the traveling vehicle 1 .

[0039] A construction method for water jet concrete cutting, using the water jet concrete cutting machine to perform cutting, comprises the following steps:

[0040] Step 1: Lay out the line;

[0041] Step 2: Place the water jet concrete cutter at the cutting starting point, remove the reflector 8, and place it at the cutting end point;

[0042] Step 3: Turn on the laser transmitter 6, adjust the height and angle of the reflector 8 until the laser signal is received on the laser receiving panel 7, and further adjust the reflector 8 until the laser signal on the laser receiving panel 7 and the laser emission point are in the same vertical plane; after the water jet concrete cutting machine starts cutting, the laser point on the laser receiving panel 7 and the laser emission point are in the same vertical plane, and the traveling vehicle 1 moves at a speed of 4.5-6 meters per minute for cutting. When the processor 9 detects that the laser receiving point and the laser emission point on the receiver are not in the same vertical plane, it will automatically control the traveling vehicle 1 to fine-tune the direction, thereby realizing automated cutting.

[0043] Step 4: The water jet concrete cutter begins cutting. The water pressures of the first, second, and third boosters 31, 41, and 51 are adjusted according to the concrete grade. The initial cutting nozzle 3 creates a 150mm deep, 2mm wide gap in the concrete. The expansion nozzle 4 creates a 30mm deep, 8-10mm wide gap. The spacing and angle of the chamfering nozzles 5 are adjusted, and the chamfering nozzles 5 complete the chamfering. For example, using C30 concrete as an example, the initial cutting nozzle 3 creates a 150mm deep gap in the concrete. The first booster 31 is adjusted to approximately 200MPa, and the expansion nozzle 4 cuts to a depth of 30mm. The second booster 41 is adjusted to approximately 100MPa. Since the two water column pressures of the chamfering nozzle 5 offset each other after cutting, ensure that the pressure of the third booster 51 does not exceed 200MPa, but is at least 100MPa.

[0044] In step 4, the chamfering nozzle 5 adjusts the spacing by controlling the servo motor 55. The servo motor 55 drives the gear 53 to rotate, and the rack 54 engaged with the gear 53 drives the slider 52 to slide in the slide groove 521 to complete the spacing adjustment.

[0045] In step 4, the angle of the chamfering nozzle 5 is adjusted by controlling the electric cylinder 57. The electric cylinder 57 is extended and retracted to drive the rotating member 56 and then drive the chamfering nozzle 5 to complete the angle adjustment.

[0046] During the concrete curing process, a large amount of water needs to be sprayed on the concrete surface. Therefore, the use of water cutting can not only not affect the strength of the concrete, but also be beneficial to the curing of the concrete, and avoid the traditional cutting saw cutting method that causes water shortage during the concrete curing process.

[0047] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it does not limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A water jet concrete seam cutting machine, characterized by: The invention comprises a traveling vehicle (1), a preliminary cutting mechanism, a seam expansion mechanism, a chamfering mechanism and a guide mechanism, wherein the traveling vehicle (1) is provided with a water tank (2), and the water tank (2) is provided with a water injection port (21), and the preliminary cutting mechanism, the seam expansion mechanism and the chamfering mechanism are sequentially arranged in the opposite direction of the traveling vehicle (1), and the preliminary cutting mechanism comprises a preliminary cutting nozzle (3) and a first supercharger (31), and the preliminary cutting nozzle (3) is connected to the traveling vehicle (1), and the preliminary cutting nozzle (3) is connected to the first supercharger (31) through a hose (10), and the first supercharger (31) is connected to the water tank (2) through a conduit (11); the seam expansion mechanism comprises a seam expansion nozzle (4), a second supercharger (41) and a mounting hole (42), and the preliminary cutting nozzle (3) is connected to the first supercharger (31) through a hose (10), and the first supercharger (31) is connected to the water tank (2) through a conduit (11); the preliminary cutting nozzle (4), the second supercharger (41) and the mounting hole (42), and the preliminary cutting nozzle (3) is connected to the first supercharger (31) through a hose (10), and the first supercharger (31) is connected to the water tank (2) through a conduit (11); the preliminary cutting nozzle (3) comprises a preliminary cutting nozzle (4), a second supercharger (41) and a ... comprises a preliminary cutting nozzle (3), a second supercharger (41) and a mounting hole (42), and An array of mounting holes (42) is provided on the traveling vehicle (1); the seam expansion nozzle (4) is detachably connected to the mounting hole (42); the seam expansion nozzle (4) is connected to the second supercharger (41) via a hose (10); the second supercharger (41) is connected to the water tank (2) via a conduit (11); the chamfering mechanism comprises a chamfering nozzle (5), a third supercharger (51), a distance adjustment mechanism, and an angle adjustment mechanism; the chamfering nozzle (5) is rotatably connected to the distance adjustment mechanism; the angle adjustment mechanism is connected to the chamfering nozzle (5); the chamfering nozzle (5) is connected to the third supercharger (51) via a hose (10); and the third supercharger (51) is connected to the water tank (2) via a conduit (11); The distance adjustment mechanism comprises a slider (52), a chute (521), a gear (53), a rack (54) and a servo motor (55), wherein the chute (521) is arranged on the traveling vehicle (1), the slider (52) is slidably connected in the chute (521), the chamfering nozzle (5) is rotatably connected to the slider (52), the rack (54) is arranged on the slider (52), the gear (53) is rotatably connected in the chute (521) and meshed with the rack (54), the servo motor (55) is connected to the traveling vehicle (1) via a flange, and the gear (53) is connected to the output end of the servo motor (55).

2. The water jet concrete cutting machine according to claim 1, characterized in that: The angle adjustment mechanism comprises a rotating member (56), an electric cylinder (57) and a connecting member (58), wherein the rotating member (56) is connected to the chamfering nozzle (5), an output end of the electric cylinder (57) is rotatably connected to the other end of the rotating member (56), the electric cylinder (57) is rotatably connected to the connecting member (58), and the connecting member (58) is connected to the traveling vehicle (1).

3. The water jet concrete cutting machine according to claim 1, characterized in that: The guiding mechanism comprises a laser emitter (6), a laser receiving panel (7), a reflector (8) and a processor (9), wherein the laser receiving panel (7) is connected to a section of the traveling vehicle (1) close to the direction of travel, the laser emitter (6) is connected to a position close to the bottom of the laser receiving panel (7), the processor (9) is connected to the traveling vehicle (1), and the reflector (8) is detachably connected to the traveling vehicle (1).

4. The water jet concrete cutting machine according to claim 1, characterized in that: A counterweight (101) is provided on the traveling vehicle (1).

5. A construction method for water jet concrete cutting, characterized in that: Cutting using the water jet concrete cutting machine according to claim 4 comprises the following steps: Step 1: Lay out the line; Step 2: Place the water jet concrete cutter at the cutting starting point, remove the reflector (8), and place it at the cutting end point; Step 3: Turn on the laser transmitter (6), adjust the height and angle of the reflector (8) until the laser signal is received on the laser receiving panel (7), and further adjust the reflector (8) until the laser signal on the laser receiving panel (7) and the laser emission point are located in the same vertical plane; Step 4: The water jet concrete cutting machine starts cutting. The initial cutting nozzle (3) cuts a gap of 150mm in depth and 2mm in width in the concrete. The expansion nozzle (4) expands and cuts a gap of 30mm in depth and 8-10mm in width. The spacing and angle of the chamfering nozzle (5) are adjusted. The chamfering nozzle (5) completes the chamfering cutting.

6. The water jet concrete cutting construction method according to claim 5, characterized in that: In step 4, the water jet concrete cutting machine travels at a speed of 4.5-6 meters per minute.

7. The water jet concrete cutting construction method according to claim 5, characterized in that: In step 4, the spacing of the chamfering nozzle (5) is adjusted by controlling the servo motor (55), which drives the gear (53) to rotate, and the rack (54) meshed with the gear (53) drives the slider (52) to slide in the slide groove (521) to complete the spacing adjustment.

8. The water jet concrete cutting construction method according to claim 5, characterized in that: In step 4, the angle of the chamfering nozzle (5) is adjusted by controlling the electric cylinder (57), and the electric cylinder (57) is extended and retracted to drive the rotating member (56) and further drive the chamfering nozzle (5) to complete the angle adjustment.

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