Multi-shaft grooving device straightening device

Abstract

The invention discloses a multi-shaft grooving machine straightening device, and belongs to the technical field of grooving machine straightening equipment. Comprising a plurality of drill rods, drill bits are arranged at the lower ends of the drill rods, the device further comprises crankshafts and straightening plates, the crankshafts are arranged on the two outermost drill rods and coaxially rotate with the drill rods, the two sides of the straightening plates are arranged on connecting rod journals of the crankshafts in a sleeving mode and can swing along with rotation of the crankshafts, straightening cutters are arranged on the outer sides of the straightening plates, openings are formed in the straightening plates, and the straightening cutters are arranged on the outer sides of the straightening plates. The drill rod located in the middle penetrates through the opening and does not make contact with the opening. The straightening device is simple in structure and scientific and reasonable in design, the grooving device can conduct grooving operation of grooving and straightening at the same time, the straightening effect is good, the remaining groove wall in a groove hole can be effectively cut off, meanwhile, the construction efficiency cannot be reduced, the effective wall thickness after pouring is increased, the construction cost is saved, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of slotting machine correction equipment, in particular to a multi-axis slotting machine straightening device. Background Art

[0002] A trenching machine, also known as a slotting machine, is a mechanical device used to excavate trenches from the ground surface during the construction of underground continuous walls. During operation, a trench of a specified width and depth is excavated in the soil or rock mass based on ground conditions and project design. A reinforcement cage is then placed and concrete is poured to form the underground continuous wall.

[0003] Types of slotting machines include grab slotting machines, hydraulic slotting machines, multi-head drills (also known as vertical multi-axis rotary slotting machines), and rotary pile drilling rigs. Vertical multi-head rotary drills utilize two or more submersible motors, which, through a transmission, drive the multiple drill bits below the rig. These drills symmetrically cut the soil at a constant drilling speed, then pump the soil through reverse circulation to discharge the slag into a vibrating screen. Larger sand and gravel, and lumpy mud, are removed from the vibrating screen, while finer particles flow into a sedimentation tank. They are then separated and removed through multiple cyclones, and the clean mud is recycled. The width created by a multi-head drill in a single run is called a cutting section, and several cutting sections constitute a unit slotting section.

[0004] However, in practice, due to the intersection of circular drill holes, excess groove wall is left between adjacent drill holes, resulting in uneven thickness of the continuous wall formed by the multi-head drilling machine, causing waste of energy and grouting materials. To address this issue, the present invention adds a straightening device to the existing multi-head drilling equipment. This device can remove the remaining groove wall between adjacent drill holes, straightening the uneven continuous wall to a uniform thickness continuous wall, thereby increasing the effective wall thickness after pouring and saving construction costs. Summary of the Invention

[0005] The object of the present invention is to provide a multi-axis groover straightening device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A multi-axis groover straightening device includes multiple drill rods, drill bits are provided at the lower ends of the drill rods, a crankshaft and a straightening plate. The crankshaft is provided on the two outermost drill rods and rotates coaxially with the drill rods. Both sides of the straightening plate are mounted on the connecting rod journals of the crankshaft and can swing with the rotation of the crankshaft. Straightening knives are provided on the outer sides of the straightening plate. An opening is opened on the straightening plate. The drill rod located in the middle passes through the opening without contacting the opening.

[0007] As a further preferred solution of the present invention: each crankshaft is provided with two connecting rod journals in opposite directions, and straightening plates are provided on the connecting rod journals on the upper and lower sides, and the straightening plates are rotatably connected to the connecting rod journals.

[0008] As a further preferred solution of the present invention, the straightening knives on the two straightening plates are arranged alternately, and the straightening knives are located between adjacent drill rods.

[0009] As a further preferred solution of the present invention: a stabilizing plate connected to the drill rod is provided below the crankshaft, a plurality of limiting holes are opened on the stabilizing plate, and the drill rod passes through the limiting holes and is rotatably connected to the limiting holes.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The multi-axis groover straightening device is designed with a crankshaft on the outermost drill rod. The crankshafts on both sides drive the straightening plates to swing back and forth and left and right, causing the straightening cutters on the straightening plates to make reciprocating arc movements, thereby cutting off the remaining groove wall in the slot hole. An opening is provided on the straightening plates so that the swinging of the straightening plates does not affect the rotation of the middle rotating rod. The design is scientific and reasonable, and can effectively transform the originally uneven thickness continuous wall into a uniform and uniform thickness continuous wall. By designing two connecting rod journals in opposite directions on the crankshaft, the movement directions of the upper and lower straightening plates differ by 180 degrees. The movement inertia and cutting force offset each other, allowing the crankshaft connecting rod mechanism to operate smoothly even at high speeds, ensuring the stability of the groover during operation. The design of the stabilizing plate can ensure the stability of the drill rod during rotation, avoiding problems such as excessive shaking; By reasonably increasing the number of straightening knives 6, the straightened groove wall can be made infinitely close to a plane.

[0011] In summary, the straightening device has a simple structure and a scientific and reasonable design, which enables the grooving machine to perform grooving and straightening operations at the same time, has a good straightening effect, can effectively cut off the remaining groove wall in the groove hole, and at the same time will not reduce the construction efficiency, improves the effective wall thickness after pouring, saves construction costs, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-axis groover straightening device of the present invention; Figure 2 This is a schematic diagram of the main structure of the multi-axis groover straightening device of the present invention; Figure 3 It is a cross-sectional structural diagram of the multi-axis groover straightening device of the present invention; Figure 4 This is a schematic diagram of the matching relationship between the straightening plate and the crankshaft; Figure 5 Schematic diagram of the state relationship of the crankshafts on both sides; Figure 6 A schematic diagram of the three-dimensional structure of a straightening plate; Figure 7This is a schematic diagram of the structure of the remaining groove wall that needs to be cut off after the groover grooves.

[0013] In the figure: 1. drill rod; 2. crankshaft; 3. connecting rod journal; 4. straightening plate; 5. opening; 6. straightening knife; 7. stabilizing plate; 8. limit hole; 9. drill bit; 10. soil layer; 11. drill hole; 12. remaining groove wall; 13. partition; 14. through hole. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0015] See also Figure 1-7 This embodiment provides a multi-axis slotting machine straightening device, including multiple drill rods 1, with drill bits 9 provided at the lower ends of the drill rods 1, as a conventional design of a multi-drill bit slotting machine, such as Figure 1 As shown, the multiple drill bits 9 at the lower end of the drill rod 1 are staggered up and down, and the drill holes 11 opened in the soil layer 10 are as shown in FIG. Figure 7 As shown, there are residual groove walls 12 between adjacent drill holes 11. In order to remove the residual groove walls 12, the straightening device also includes a crankshaft 2 and a straightening plate 4. The crankshaft 2 is set on the two outermost drill rods 1 and rotates coaxially with the drill rods 1. The straightening plate 4 is mounted on the connecting rod journal 3 of the crankshaft 2 on both sides and can swing with the rotation of the crankshaft 2. In order to achieve the swing of the straightening plate 4, the straightening plate 4 needs to be rotatably connected to the connecting rod journal 3. Specifically, the structure of the straightening plate 4 is as follows Figure 6 As shown, through holes 14 are provided on both sides of the straightening plate 4, and the connecting rod journal 3 passes through the through holes 14. The connecting rod journal 3 is rotatably connected to the through holes 14 to achieve the swing of the straightening plate 4. A straightening knife 6 is provided on the outside of the straightening plate 4 to ensure that the straightening plate 4 does not affect the rotation of the middle drill rod 1 when it swings. Figure 1 as well as Figure 6 As shown, an opening 5 is provided on the straightening plate 4 , and the drill rod 1 located in the middle passes through the opening 5 without contacting the opening 5 .

[0016] like Figure 4 as well as Figure 5 As shown, in order to prevent a single straightening plate 4 from causing excessive shaking to the drill pipe 1 when it swings back and forth, two connecting rod journals 3 in opposite directions are provided on each crankshaft 2, and straightening plates 4 are provided on the connecting rod journals 3 on the upper and lower sides, so that the movement directions of the upper and lower straightening plates 4 differ by 180 degrees, and the movement inertia and cutting force offset each other, so that the crankshaft connecting rod mechanism can operate smoothly even at high speed.

[0017] It should be noted that the structure of the crankshaft 2 is a conventional general structure familiar to those skilled in the art and can be obtained by custom purchase, such as Figure 5 As shown, the crankshaft 2 is composed of a connecting rod journal 3 and a partition 13 that are spaced apart and connected to each other. The lower end of the partition 13 is fixedly connected to the drill rod 1, and the drill rod 1 can also be passed through the center of the crankshaft 2. This connection method is a conventional design familiar to technicians in this field and will not be repeated here.

[0018] like Figure 1 as well as Figure 7 As shown, since the remaining groove wall 12 is located between the two drill holes 11, the straightening blades 6 on the two straightening plates 4 are staggered, with the straightening blades 6 located between adjacent drill rods 1. By properly controlling the number of straightening blades 6 based on the number of drill rods 1, processing costs can be minimized. Furthermore, as is common practice among those skilled in the art, by appropriately increasing the number of straightening blades 6, the straightened groove wall can be made as close to a plane as possible.

[0019] In addition, as is conventionally familiar to those skilled in the art, to ensure stability during the rotation of the multiple drill rods 1, a stabilizing plate 7 connected to the drill rods 1 is provided below the crankshaft 2. The stabilizing plate 7 is provided with a plurality of limiting holes 8, through which the drill rods 1 pass and are rotatably connected. As is conventionally familiar to those skilled in the art, the diameter of the limiting holes 8 should match the diameter of the drill rods 1. The simultaneous passage of multiple drill rods 1 through the stabilizing plate 7 also ensures the stability of the stabilizing plate 7 on the drill rods 1.

[0020] It should be noted that the rotation of the drill rod 1 is driven by a transmission device on an existing crane, which is a conventional general-purpose equipment and will not be described in detail in this application.

[0021] like Figure 7 As shown, in actual application, after the drill bit 9 drills a hole 11 in the soil layer 10, a residual groove wall 12 is left between adjacent holes 11, which will cause uneven thickness of the wall after pouring, and corresponding depressions will appear at the residual groove wall 12. Therefore, under the coaxial rotation of the crankshafts 2 on both sides and the corresponding drill rods 1, the straightening plate 4 is driven to always perform a cyclic swing back and forth and left and right, so that the straightening knife 6 performs a corresponding arc movement. As the drill bit 9 continues to sink, the straightening knife 6 continuously cuts off the remaining groove wall 12, effectively playing the role of straightening while drilling.

[0022] It should be noted that the crankshaft 2 drives the straightening knife 6 to move. The movement trajectory of the straightening knife 6 is common knowledge familiar to those skilled in the art, and is a continuously cyclic arc motion, which will not be described in detail in this application.

[0023] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and technical features of the present application. For those skilled in the art, solutions or features that belong to the prior art or common knowledge will not be described in detail in the above embodiments.

[0024] In addition, the technical solutions of the present application are not limited to the above-mentioned embodiments. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-axis groover straightening device, comprising a plurality of drill rods (1), wherein a drill bit (9) is provided at the lower end of the drill rods (1), characterized in that: It also includes a crankshaft (2) and a straightening plate (4), wherein the crankshaft (2) is arranged on the two outermost drill rods (1) and rotates coaxially with the drill rods (1), and the straightening plate (4) is sleeved on both sides of the connecting rod journal (3) of the crankshaft (2) and can swing with the rotation of the crankshaft (2), and a straightening knife (6) is arranged on the outer side of the straightening plate (4), and an opening (5) is opened on the straightening plate (4), and the drill rod (1) located in the middle passes through the opening (5) and does not contact the opening (5).

2. The multi-axis groover straightening device according to claim 1, characterized in that: Two connecting rod journals (3) in opposite directions are provided on each crankshaft (2), and straightening plates (4) are provided on the connecting rod journals (3) on the upper and lower sides. The straightening plates (4) are rotatably connected to the connecting rod journals (3).

3. The multi-axis groover straightening device according to claim 2, characterized in that: The straightening knives (6) on the two straightening plates (4) are arranged in an interlaced manner, and the straightening knives (6) are located between adjacent drill rods (1).

4. The multi-axis groover straightening device according to claim 1, characterized in that: A stabilizing plate (7) connected to the drill rod (1) is provided below the crankshaft (2). A plurality of limiting holes (8) are provided on the stabilizing plate (7). The drill rod (1) passes through the limiting holes (8) and is rotatably connected to the limiting holes (8).

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