Rotary digging square hole machine

Abstract

The utility model discloses a rotary digging square hole machine. A hinge frame is arranged at the top of a support frame; a hinged plate and a supporting plate are arranged below the supporting frame, and the supporting frame is hinged to the drilling unit on the lower portion through the hinged plate. The supporting plate is arranged on the side portion of the drilling unit, and drilling supporting of the drilling unit is achieved on the side portion. The drilling unit comprises a drill bit driving part, a spiral drill bit is arranged at the bottom of the drill bit driving part, a square supporting frame is arranged on the periphery of the spiral drill bit, and a soil discharging groove is formed in the periphery of the square supporting frame; the lowest part of the spiral bit protrudes out of the bottom surface of the square support frame. By means of the structural arrangement, drilling of the spiral drill bit on the lower portion can be achieved, shaping of the edge of a drilled hole is achieved through the square supporting frame, after the drill bit is matched with an excavator, the operation efficiency and the operation precision can be effectively improved, and the drill bit is an ideal square hole excavating instrument.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole drilling equipment, and in particular relates to a rotary square hole drilling machine. Background Art

[0002] In infrastructure construction, drilling operations are usually carried out on the surface. When drilling small-diameter square holes, the current operation method can only be through manhole excavation. This method is to manually dig on the surface and achieve deep excavation in a relatively narrow space. After excavation, the soil is discharged outward to achieve the formation of the square hole.

[0003] The existing manual digging of square holes has the following disadvantages: 1. Manual digging is slow and labor-intensive; 2. There is a limit on the digging depth. When the hole depth is higher than 1 meter, it is generally impossible to continue digging by manual labor alone, and only a small excavator can be used for the operation. However, the operating aperture of the small excavator is large, resulting in waste in the operation.

[0004] In view of the above drawbacks, as technical personnel in this field, it is very necessary to design a rotary drilling square hole machine, which is required to be able to be connected with general equipment in the prior art, can realize hole drilling operations on the surface, and can easily realize the forming of deeper square holes. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a rotary square hole drilling machine, which has a simple structural design. The clamping drive device is used to clamp and apply force to the entire equipment, and the hole drilling process on the ground surface is achieved in the clamping state. This square hole drilling operation is completely completed with the help of mechanical equipment. Under the premise of ensuring the hole size, the hole digging efficiency can be improved.

[0006] In order to achieve the above technical purpose, the utility model adopts the following scheme:

[0007] A rotary square hole drilling machine comprises a support frame, wherein a hinge frame is arranged on the top of the support frame; a hinge plate and a support plate are arranged below the support frame, and the support plate is hinged with a drilling unit at the bottom through the hinge plate; the support plate is arranged on the side of the drilling unit, and the drilling support of the drilling unit is realized at the side;

[0008] The drilling unit comprises a drill driving part, at the bottom of which a spiral drill bit is arranged, a square support frame is arranged around the spiral drill bit, and a soil discharge trough is arranged around the square support frame; the lowest part of the spiral drill bit protrudes from the bottom surface of the square support frame.

[0009] The square support frame includes four support columns, which form a quadrilateral, and a soil discharge trough is arranged between every two adjacent support columns; a square guide frame is arranged at the bottom of the four support columns, and the square guide frame covers the spiral drill bit.

[0010] The bottom tip of the spiral drill bit is provided with a guide drill bit, and the guide drill bit rotates along with the end of the drill rod.

[0011] The bottom of the square guide frame is provided with guide teeth, and the guide teeth are used to penetrate into the soft soil. There is a gap between the inner diameter of the square guide frame and the outer diameter of the guide drill bit, and the gap is 5 mm to 10 mm.

[0012] A hinge shaft is arranged between the hinge plate and the drilling unit, and the hinge plate and the drilling unit are hingedly fixed by the hinge shaft.

[0013] A support plate is arranged at the lower part of the hinge plate, and a support arc plate is arranged toward the drilling unit.

[0014] The beneficial effects of the utility model are as follows: after the above structural setting, the utility model is provided with an articulated frame at the top of the support frame; a hinged plate and a support plate are provided below the support frame, and are hinged with the lower drilling unit through the hinged plate; the support plate is provided on the side of the drilling unit, and the drilling support of the drilling unit is realized on the side; the drilling unit includes a drill driving part, a spiral drill bit is provided at the bottom of the drill driving part, a square support frame is provided on the periphery of the spiral drill bit, and a soil discharge trough is provided on the periphery of the square support frame; the lowest part of the spiral drill bit protrudes from the bottom surface of the square support frame. After the above structural setting, the spiral drill bit can realize the drilling of the lower part, and the shaping of the edge of the drilling hole can be realized through the square support frame. After cooperating with the excavator, the working efficiency and working accuracy can be effectively improved, and it is an ideal square hole excavation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 This is a rear view structural diagram of the utility model;

[0018] In the attached figure:

[0019] 1. Support frame, 10. Horizontal plate, 11. Articulated frame, 12. Articulated plate, 13. Support plate, 14. Support arc plate;

[0020] 2. articulated axis, 21. longitudinal articulated axis, 22. transverse articulated axis;

[0021] 3. Drill bit drive unit;

[0022] 4. four frames, 41. support columns, 42. soil discharge trough;

[0023] 5. Spiral drill bit, 51. Spiral fan blade;

[0024] 6. Square guide frame, 61. Guide teeth;

[0025] 7. Guide drill bit. DETAILED DESCRIPTION

[0026] The present technical solution will be explained below through specific embodiments. It should be understood that the following description is only exemplary, and those skilled in the art can further extend the technology based on the technology of the following embodiments. The claims of this patent application shall be based on the scope recorded in the claims.

[0027] As shown in the accompanying drawings, the utility model is a rotary drilling square hole machine, which includes a support frame 1, the support frame 1 includes a horizontal plate 10, an articulated frame 11 is arranged on the upper part of the horizontal plate, a hinged plate 12 is arranged on the lower part of the horizontal plate 10, a hinged shaft 2 is arranged on the hinged plate 12, and a transverse hinged shaft 22 and a longitudinal hinged shaft 21 are respectively arranged at the bottom and top of the hinged shaft 2, and the articulation of the drilling unit is synchronously realized at the upper and lower ends through the combination of the two.

[0028] The drilling unit includes a drill driving part 3 fixed at the bottom of the hinge shaft 2 and a spiral drill bit 5 connected to the lower part of the drill driving part 3. The spiral drill bit 5 is composed of a drill rod in the center and spiral blades 51 on the periphery. Driven by the drill driving part 3, the spiral blades 51 on the periphery rotate at high speed with the drill rod to drill the surface soil. At this time, a circular hole is processed on the surface.

[0029] A support plate 13 is horizontally arranged on the side of the hinged plate 12, and an arc-shaped support arc plate 14 is arranged toward the drilling unit. The support arc plate 14 fits the drill driving part 3, which can realize support positioning in the drilling state. In the drilling state, the above structure constrains the entire drilling unit from swinging disorderly on the support frame 1.

[0030] Furthermore, a square support frame 4 is provided on the periphery of the spiral drill bit 5, and a soil discharge trough 42 is provided on the periphery of the square support frame 4 for discharging soil to the outside. In the present embodiment, the purpose of providing the square support frame 4 is to realize the discharge of soil to the outside and to realize the shaping of the square hole, so the square support frame 4 includes four support columns 41, and the four support columns 41 form a quadrilateral, and a soil discharge trough 42 is provided between every two adjacent support columns 41; during the drilling process, the soil generated by the spiral drill bit 5 can be discharged to the outside in the soil discharge trough 42.

[0031] Furthermore, a square guide frame 6 is provided at the bottom of the four support columns 41, and the square guide frame 6 gathers the four support columns 41 to form a stable four-sided frame structure. At the same time, the utility model also provides guide teeth 61 at the lower part of the square guide frame 6, and the guide teeth 61 can be used to realize vertical plug-in and cutting force, and the edge of the square hole can be trimmed by such guide teeth 61.

[0032] In addition to the guide teeth 61 at the bottom of the square guide frame 6, there is also a gap between the inner diameter of the square guide frame 6 and the outer diameter of the guide drill bit 5. The gap is 5 mm to 10 mm. To prevent the guide drill bit 5 from swinging too much, when the length of the guide drill bit 5 is not longer than 2 meters, it is best to control the gap to 5 mm.

[0033] The bottom tip of the spiral drill bit 5 is provided with a guide drill bit 7, and the guide drill bit 7 rotates with the end of the drill rod, and is used for pre-drilling square holes in the soil, providing a better drilling foundation for the spiral drill bit 5 above.

[0034] To sum up, after the above structural setting, the utility model can realize the drilling of the spiral drill bit 5 at the bottom, and the shaping of the edge of the drill hole can be realized through the square support frame 4. After cooperating with the excavator, it can effectively realize the actions of drilling, pressing, vertical impact, etc., and realize the processing of square holes on the surface under the coordination of the above works, so as to improve the working efficiency and working accuracy. It is an ideal square hole excavation equipment.

Claims

1. A rotary square hole drilling machine, characterized in that: It includes a support frame, the top of which is provided with an articulated frame; a hinge plate and a support plate are provided below the support frame, and are hinged to the lower drilling unit through the hinge plate; the support plate is provided on the side of the drilling unit to realize the drilling support of the drilling unit at the side; The drilling unit comprises a drill driving part and a spiral drill bit. A square support frame is arranged on the periphery of the spiral drill bit. A soil discharge groove is arranged on the periphery of the square support frame. The lowest part of the spiral drill bit protrudes from the bottom surface of the square support frame.

2. A rotary square hole drilling machine according to claim 1, characterized in that: The square support frame includes four support columns, which form a quadrilateral, and a soil discharge trough is arranged between every two adjacent support columns; a square guide frame is arranged at the bottom of the four support columns, and the square guide frame covers the spiral drill bit.

3. A rotary square hole drilling machine as claimed in claim 1 or 2, characterized in that: The bottom tip of the spiral drill bit is provided with a guide drill bit, and the guide drill bit rotates along with the end of the drill rod.

4. A rotary square hole drilling machine as claimed in claim 2, characterized in that: The bottom of the square guide frame is provided with guide teeth, and the guide teeth are used for penetrating into soft soil.

5. A rotary square hole drilling machine as claimed in claim 2, characterized in that: There is a gap between the inner diameter of the square guide frame and the outer diameter of the guide drill bit, and the gap is 5 mm to 10 mm.

6. A rotary square hole drilling machine according to claim 1, characterized in that: A hinge shaft is arranged between the hinge plate and the drilling unit, and the hinge plate and the drilling unit are hingedly fixed by the hinge shaft.

7. The rotary square hole drilling machine according to claim 1, characterized in that: A support plate is arranged at the lower part of the hinge plate, and a support arc plate is arranged toward the drilling unit.

Images