Expandable square pile drill bit

Abstract

The utility model discloses an extensible square pile drill bit which comprises a machine frame component, driving mechanisms and excavating mechanisms, a connecting fixing base is arranged at the lower end of the machine frame component, the driving mechanisms are arranged on the two sides of the connecting fixing base respectively, each driving mechanism is connected with the corresponding excavating mechanism, the two excavating mechanisms are coaxially arranged, and the two excavating mechanisms are connected with the machine frame component. The rotating shafts can rotate in the same direction or in opposite directions; the machine frame component comprises a top connecting plate, a connecting square pipe and a connecting vertical plate, the connecting square pipe is arranged on the upper surface of the top connecting plate, a plurality of reinforcing ribs are arranged on the upper surface of the top connecting plate, the connecting vertical plate is arranged at the lower end of the top connecting plate, and a round hole is formed in the connecting vertical plate; the connecting fixing seat is connected with the connecting vertical plate through the round hole; the driving mechanism comprises a hydraulic motor and a speed reducer, the output end of the hydraulic motor is connected with the speed reducer, and the speed reducer is used for driving the excavating mechanism to rotate.

Description

Technical Field

[0001] This utility model relates to the technical field of pile foundation construction equipment, specifically to an expandable square pile drill bit. Background Technology

[0002] In the construction of square piles, a round drill bit is generally used to pre-drill holes, which are then processed into a shape similar to a plum blossom pile. Then, a special square pile drill bit is used to excavate standard square pile holes.

[0003] However, traditional square pile drill bits have certain limitations in terms of digging depth and range, and are not easily expanded to meet actual needs. Therefore, developing a square pile drill bit with a flexible structure and easy expansion is particularly important. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide an expandable square pile drill bit.

[0005] To solve the above-mentioned technical problems, the present invention provides an expandable square pile drill bit, including a frame component, a drive mechanism and a digging mechanism. The lower end of the frame component is provided with a connecting fixing seat, and the two sides of the connecting fixing seat are respectively provided with drive mechanisms. Each drive mechanism is connected to a digging mechanism. The two digging mechanisms are arranged on the same axis and can rotate in the same direction or in opposite directions.

[0006] The frame components include a top connecting plate, a connecting square tube, and a connecting vertical plate. The top connecting plate has a connecting square tube on its upper surface and multiple reinforcing ribs on its upper surface. The bottom of the top connecting plate has a connecting vertical plate with a circular hole. The connecting fixing seat is connected to the connecting vertical plate through the circular hole.

[0007] The connecting fixing base is provided with a first connecting plate on both sides, and the connecting plate is provided with a first connecting hole and a second connecting hole arranged in a circumferential direction.

[0008] The drive mechanism includes a hydraulic motor and a reducer. The output end of the hydraulic motor is connected to the reducer. The reducer is used to drive the digging mechanism to rotate. The outer wall of the reducer is provided with a connecting ring. The connecting ring has a No. 4 connecting hole for connecting the digging mechanism in the circumferential direction.

[0009] Furthermore, the top connecting plate is provided with side plates fixedly attached to it in the circumferential direction.

[0010] Furthermore, one end of each of the reinforcing ribs is fixedly connected to the connecting square tube, and the other end extends toward the edge of the top plate connecting plate.

[0011] Furthermore, the base of the hydraulic motor is provided with a No. 3 connection hole, which is corresponding to the No. 2 connection hole. Bolts are inserted into the No. 3 connection hole and the No. 2 connection hole to connect the hydraulic motor to the connecting plate. A sealing gasket is provided between the hydraulic motor and the connecting plate.

[0012] Furthermore, the digging mechanism includes a digging wheel body and digging elements. The digging wheel body has a cylindrical structure. Several digging elements are provided on the outer wall of the digging wheel body. A second connecting plate is fixedly connected to the inner wall of the digging wheel body. A fifth connecting hole, which corresponds to the fourth connecting hole, is opened on the second connecting plate. A sealing gasket is provided between the second connecting plate and the connecting ring.

[0013] Furthermore, a third connecting plate is fixedly connected to the side of the excavating wheel away from the drive mechanism. The third sealing plate and the sealing frame are connected by bolts to form a detachable connection structure. The sealing plate is located between the third sealing plate and the sealing frame. Sealing gaskets are provided on both sides of the sealing plate.

[0014] Furthermore, sealing gaskets are provided between the connecting fixing seat and the first connecting plates on both sides.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] This device features a modular design, allowing for quick replacement of the excavation mechanism to adapt to different pile diameters and construction needs, thus improving construction efficiency and flexibility. The frame components employ reinforcing ribs and connecting square tubes to enhance overall structural stability and ensure safety during construction. The drive mechanism is connected to the excavation mechanism via standard connection holes, facilitating expansion and upgrades to meet the needs of different construction scenarios. The excavation mechanism and sealing frame utilize a detachable connection structure, simplifying daily maintenance and replacement of worn parts. Attached Figure Description

[0017] Figure 1 This is a front view of an expandable square pile drill bit according to this utility model;

[0018] Figure 2 This is a perspective view of an expandable square pile drill bit according to this utility model;

[0019] Figure 3 This is an exploded view of an expandable square pile drill bit according to this utility model.

[0020] As shown in the figure: 1. Frame components, 101. Top connecting plate, 102. Connecting square tube, 103. Side plate, 104. Reinforcing rib, 105. Connecting upright plate, 2. Connecting fixing seat, 3. First connecting plate, 4. Connecting hole 1, 5. Connecting hole 2, 6. Hydraulic motor, 7. Reducer, 8. Connecting hole 3, 9. Connecting hole 4, 10. Digging wheel body, 11. Digging element, 12. Second connecting plate, 13. Connecting hole 5, 14. Third connecting plate, 15. Sealing plate, 16. Sealing frame, 17. Connecting ring. Detailed Implementation

[0021] The following is a detailed description of an expandable square pile drill bit according to the present invention, with reference to the accompanying drawings.

[0022] Referring to the accompanying drawings, an expandable square pile drill bit includes a frame component 1, a drive mechanism, and a digging mechanism. The lower end of the frame component 1 is provided with a connecting fixing seat 2. The two sides of the connecting fixing seat 2 are respectively provided with drive mechanisms. Each drive mechanism is connected to a digging mechanism. The two digging mechanisms are arranged on the same axis and can rotate in the same direction or in opposite directions.

[0023] The frame component 1 includes a top connecting plate 101, a connecting square tube 102, and a connecting upright plate 105. The top connecting plate 101 has a connecting square tube 102 on its upper surface and a plurality of reinforcing ribs 104 on its upper surface. The bottom of the top connecting plate 101 has a connecting upright plate 105. The connecting upright plate 105 has a circular hole, and the connecting fixing seat 2 is connected to the connecting upright plate 105 through the circular hole.

[0024] The connecting fixing base 2 is provided with a first connecting plate 3 on both sides, and the connecting plate 3 is provided with a first connecting hole 4 and a second connecting hole 5 arranged in a circumferential direction;

[0025] The drive mechanism includes a hydraulic motor 6 and a reducer 7. The output end of the hydraulic motor 6 is connected to the reducer 7. The reducer 7 is used to drive the digging mechanism to rotate. The outer wall of the reducer 7 is provided with a connecting ring 17. The connecting ring 17 has a fourth connecting hole 9 for connecting the digging mechanism in the circumferential direction.

[0026] In a preferred embodiment of this invention, the top connecting plate 101 is provided with a side plate 103 fixedly connected in the circumferential direction.

[0027] In a preferred embodiment of this invention, one end of each of the reinforcing ribs 104 is fixedly connected to the connecting square tube 102, and the other end extends toward the edge of the top plate connecting plate 101.

[0028] In a preferred embodiment of this invention, the hydraulic motor 6 is powered by a rotary drilling rig. The base of the hydraulic motor 6 is provided with a third connection hole 8, which corresponds to the second connection hole 5. Bolts are inserted into the third connection hole 8 and the second connection hole 5 to connect the hydraulic motor 6 to the connecting plate 3. A sealing gasket is provided between the hydraulic motor 6 and the connecting plate 3.

[0029] In a preferred embodiment of this invention, the excavating mechanism includes an excavating wheel 10 and excavating elements 11. The excavating wheel 10 has a cylindrical structure, and a plurality of excavating elements 11 are provided on the outer wall of the excavating wheel 10. A second connecting plate 12 is fixedly connected to the inner wall of the excavating wheel 10. A fifth connecting hole 13 corresponding to the fourth connecting hole 9 is provided on the second connecting plate 12. A sealing gasket is provided between the second connecting plate 12 and the connecting ring 17.

[0030] In a preferred embodiment of this invention, the digging wheel 10 is provided with a fixed third connecting plate 14 on the side away from the drive mechanism. The third sealing plate 14 and the sealing frame 16 are connected by bolts to form a detachable connection structure. The sealing plate 15 is located between the third sealing plate 14 and the sealing frame 16, and sealing gaskets are provided on both sides of the sealing plate 15.

[0031] In a preferred embodiment of this invention, sealing gaskets are provided between the connecting fixing seat 2 and the first connecting plates 3 on both sides.

[0032] In a preferred embodiment of this invention, the connecting square tube 102 is connected to a rotary drilling rig.

[0033] In a specific implementation of this utility model, the connecting square tube 102 is connected to a rotary drilling rig. A suitable excavating wheel 10 is selected according to the construction requirements, and it is ensured that its outer wall is equipped with sufficient excavating elements 11. The second connecting plate 12 on the inner wall of the excavating wheel 10 is bolted to the connecting ring 17 of the reducer 7 through the fifth connecting hole 13 and the fourth connecting hole 9. The third connecting plate 14 is installed on the side of the excavating wheel 10 away from the drive mechanism, and it is ensured that it forms a detachable connection structure with the sealing frame 16 through bolts. A sealing plate 15 is installed between the third connecting plate 14 and the sealing frame 16 to ensure the sealing during the excavation process.

[0034] Adjust the rotation direction and speed of the excavator wheel 10 according to construction needs, and make necessary adjustments.

[0035] Install the assembled expandable square pile drill bit onto the rotary drilling rig, and adjust the position and angle of the drill bit according to the construction requirements.

[0036] The rotary drilling rig is started. The hydraulic motor 6 is powered by the rig, and its output is connected to a reducer 7. The reducer 7 drives the digging wheel 10 to rotate, causing the digging element 11, mounted on the outer wall of the digging wheel 10, to drill into the soil or rock. During drilling, the drill bit speed and feed rate are adjusted as needed to ensure construction efficiency and quality. When a larger pile diameter is required, a larger digging wheel 10 can be replaced, and the rig must be reassembled and re-adjusted.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An expandable square pile drill bit, characterized in that, It includes a frame component (1), a drive mechanism and a digging mechanism. The lower end of the frame component (1) is provided with a connecting fixing seat (2). The two sides of the connecting fixing seat (2) are respectively provided with drive mechanisms. Each drive mechanism is connected to a digging mechanism. The two digging mechanisms are arranged on the same axis and can rotate in the same direction or in opposite directions. The frame component (1) includes a top connecting plate (101), a connecting square tube (102) and a connecting upright plate (105). The top connecting plate (101) has a connecting square tube (102) on its upper surface and a plurality of reinforcing ribs (104) on its upper surface. The bottom of the top connecting plate (101) has a connecting upright plate (105) and a circular hole in the connecting upright plate (105). The connecting fixing seat (2) is connected to the connecting upright plate (105) through the circular hole. The connecting fixing base (2) is provided with a first connecting plate (3) on both sides, and the first connecting plate (3) is provided with a first connecting hole (4) and a second connecting hole (5) arranged in a circumferential direction. The drive mechanism includes a hydraulic motor (6) and a reducer (7). The output end of the hydraulic motor (6) is connected to the reducer (7). The reducer (7) is used to drive the digging mechanism to rotate. The outer wall of the reducer (7) is provided with a connecting ring (17). The connecting ring (17) is provided with a fourth connecting hole (9) for connecting the digging mechanism in the circumferential direction.

2. The scalable square pile drill bit according to claim 1, characterized in that, The top connecting plate (101) is provided with a side plate (103) fixed in the circumference.

3. The expandable square pile drill bit according to claim 1, characterized in that, Each of the reinforcing ribs (104) is fixed at one end to the connecting square tube (102) and at the other end extends toward the edge of the top connecting plate (101).

4. The scalable square pile drill bit according to claim 1, characterized in that, The base of the hydraulic motor (6) is provided with a third connection hole (8), which is corresponding to the second connection hole (5). Bolts are inserted into the third connection hole (8) and the second connection hole (5) to connect the hydraulic motor (6) to the first connecting plate (3). A sealing gasket is provided between the hydraulic motor (6) and the first connecting plate (3).

5. The scalable square pile drill bit according to claim 1, characterized in that, The excavation mechanism includes an excavation wheel (10) and excavation elements (11). The excavation wheel (10) is a cylindrical structure. Several excavation elements (11) are provided on the outer wall of the excavation wheel (10). A second connecting plate (12) is fixedly connected to the inner wall of the excavation wheel (10). A fifth connecting hole (13) corresponding to the fourth connecting hole (9) is opened on the second connecting plate (12). A sealing gasket is provided between the second connecting plate (12) and the connecting ring (17).

6. The expandable square pile drill bit according to claim 5, characterized in that, The digging wheel body (10) is provided with a fixed third connecting plate (14) on the side away from the drive mechanism. The third connecting plate (14) and the sealing frame (16) are connected by bolts to form a detachable connection structure. The sealing plate (15) is located between the third connecting plate (14) and the sealing frame (16). Sealing gaskets are provided on both sides of the sealing plate (15).

7. The scalable square pile drill bit according to claim 1, characterized in that, Sealing gaskets are provided between the connecting fixing seat (2) and the first connecting plates (3) on both sides.

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