Spiral anchor drilling machine for crank arm type tower foundation construction
The positioning and adjustment component composed of a hydraulic motor reducer and an electric winch solves the problem of drilling anchor offset and angle adjustment, achieves effective constraint and angle adjustment of the drilling anchor, and improves construction accuracy and adaptability.
Patent Information
- Application Number
- CN202423239947.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing crank arm drilling rig lacks the restraining force on the drilling anchor during the drilling process, which causes the drilling anchor to easily deviate and cannot meet the specific drilling angle requirements.
A positioning and adjustment component composed of a hydraulic motor reducer and an electric winch is used to provide constraints on the drilling anchor through a pull rope and guide wheel system, and real-time monitoring and adjustment of the angle is achieved through an angle sensor.
It realizes effective constraint on the drilling anchor, avoids deviation, and can actively adjust the drilling angle, thereby improving construction accuracy and adaptability.
Smart Images
Figure CN223423923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power construction equipment, in particular to a spiral anchor drilling machine for crank arm type tower foundation construction. Background Art
[0002] The spiral anchor foundation is a new form of transmission line tower foundation. No foundation pit excavation is required during the construction of the spiral anchor. The spiral anchor rod is rod-shaped with spiral blades at the end. The torque is applied through the anchor rod to screw the spiral blades into the deeper soil. The disturbance to the soil is small, and the inherent strength of the original soil can be fully utilized to improve the bearing capacity.
[0003] Spiral anchor drilling rigs for tower foundation construction are used to install spiral anchors in transmission line tower foundations. They are suitable for overhead transmission line tower foundation construction. Crank arm drilling rigs are a common type of construction equipment. Current crank arm drilling rigs typically have their drilling anchors suspended from a hydraulic crank arm. While gravity helps maintain the anchor upright, the lack of restraint during drilling means the anchor can be easily pushed and deflected by the soil, affecting construction accuracy. Furthermore, this type of suspended drilling anchor cannot meet specific drilling angle requirements. Utility Model Content
[0004] The technical problem to be solved by the present invention is to provide a spiral anchor drilling machine for the construction of a curved arm tower foundation in response to the above-mentioned technical deficiencies. The spiral anchor drilling machine can provide sufficient constraints on the drilling anchor to avoid being pushed and offset by the soil during drilling, and can also actively adjust the drilling angle.
[0005] The technical solution adopted by the utility model is to provide a screw anchor drilling machine for the construction of a crank-arm pole tower foundation, comprising an excavator body, wherein the free end of the hydraulic crank arm of the excavator body is connected to a bracket via a composite hinge, and the composite hinge is controlled to move by the hydraulic power of the hydraulic crank arm, and the bracket comprises a base plate and vertical plates fixed parallel to both sides of the upper end of the base plate; the plane on which the vertical plates are located is parallel to the plane on which the hydraulic crank arm moves; a support frame is fixed to the lower end of the base plate; a drilling power assembly is provided on the support frame; and a positioning adjustment assembly is provided on the bracket;
[0006] The drilling power assembly includes a hydraulic motor reducer rotatably connected to the support frame via a rotating shaft; a drilling anchor is coaxially fixed downwardly to the output end of the hydraulic motor reducer; the axial direction of the rotating shaft is perpendicular to the plane in which the hydraulic crank arm moves;
[0007] The positioning and adjustment assembly includes two lifting brackets fixed on the upper end of the base plate; the upper ends of the lifting brackets are connected to electric winches; through slots are respectively opened on the outside of the base plate relative to the lifting brackets; two guide wheels are rotatably connected between the two vertical plates; the guide wheels are arranged one by one above the through slots; the axial directions of the electric winch and the guide wheels are parallel to the axial direction of the rotating shaft; a pull rope is connected to the electric winch; extension frames are respectively fixed on both sides of the outer wall of the hydraulic motor reducer; the two extension frames are symmetrically distributed relative to the axial direction of the rotating shaft; the pull ropes pass around the corresponding guide wheels in turn, pass through the corresponding through slots, and are respectively connected to the extension frames; the electric winch drives the pull rope to wind, so as to make the pull rope drive the hydraulic motor reducer to rotate in an articulated manner on the support frame.
[0008] To further optimize this technical solution, an angle sensor is fixed to the outer wall of the hydraulic motor reducer of a spiral anchor drilling machine used for the construction of a crank-arm tower foundation; the angle sensor is connected to the control system of the excavator body.
[0009] To further optimize this technical solution, a guide wheel of a spiral anchor drilling machine for the construction of a crank-arm tower foundation is a grooved wheel structure; the pull rope is guided and limited by the guide wheel.
[0010] To further optimize this technical solution, a stop shaft is provided on the outer side of the guide wheel of a spiral anchor drilling machine for the construction of a curved arm tower foundation; the stop shaft is rotatably connected between the two vertical plates; the axial direction of the stop shaft is parallel to the axial direction of the guide wheel; and the pull rope is located between the corresponding guide wheel and the stop shaft.
[0011] The beneficial effects of the present invention are:
[0012] The hydraulic motor reducer is connected to the support frame through a rotating shaft. Combined with the motion control of the bracket by the hydraulic crank arm, the hydraulic motor reducer can have a wide range of angle adjustment freedom to meet the diverse needs of the drilling angle of the drilling anchor.
[0013] The electric winch is connected with a pull rope, which passes around the corresponding guide wheel in turn, passes through the corresponding through slot, and is connected to the extension frame respectively. The two extension frames are symmetrically distributed relative to the axis of the rotating shaft. Through the action of the two electric winches, the pull rope can be driven to wind respectively, so as to drive the hydraulic motor reducer to deflect to both sides of the rotating shaft respectively, so as to adjust the drilling angle of the drilling anchor. After adjusting the deflection angle of the hydraulic motor reducer, the pull ropes on both sides are tightened respectively, so as to achieve the firm positioning of the angle of the hydraulic motor reducer, thereby preventing the drilling anchor from being pushed by the soil during drilling. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the positioning and adjustment component.
[0016] In the figure, 1. Excavator body; 2. Hydraulic crank arm; 3. Compound hinge; 4. Bracket; 5. Base plate; 6. Vertical plate; 7. Support frame; 8. Rotating shaft; 9. Hydraulic motor reducer; 10. Drilling anchor; 11. Lifting bracket; 12. Electric winch; 13. Through slot; 14. Guide wheel; 15. Pull rope; 16. Extension frame; 17. Angle sensor; 18. Stop shaft. DETAILED DESCRIPTION
[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0018] like Figure 1 As shown, a screw anchor drilling machine for crank-arm tower foundation construction includes an excavator body 1. The free end of the hydraulic crank arm 2 of the excavator body 1 is connected to a bracket 4 via a composite hinge 3. The composite hinge 3 is controlled to move by the hydraulic power of the hydraulic crank arm 2. The bracket 4 includes a base plate 5 and vertical plates 6 fixed parallel to both sides of the upper end of the base plate 5. The plane on which the vertical plates 6 are located is parallel to the plane in which the hydraulic crank arm 2 moves. A support frame 7 is fixed to the lower end of the base plate 5. The support frame 7 is provided with a drilling power assembly. The bracket 4 is provided with a positioning adjustment assembly.
[0019] like Figure 1-2 As shown, the drilling power assembly includes a hydraulic motor reducer 9 rotatably connected to a support frame 7 via a rotating shaft 8; a drilling anchor 10 is coaxially fixed downwardly to the output end of the hydraulic motor reducer 9; the axial direction of the rotating shaft 8 is perpendicular to the plane in which the hydraulic crank arm 2 moves;
[0020] like Figure 2 As shown, the positioning and adjustment assembly includes two lifting brackets 11 fixed to the upper end of the base plate 5; the upper ends of the lifting brackets 11 are connected to electric winches 12; through slots 13 are respectively opened on the base plate 5 relative to the outer sides of the lifting brackets 11; two guide wheels 14 are rotatably connected between the two vertical plates 6; the guide wheels 14 are arranged one by one above the through slots 13; the axial directions of the electric winch 12 and the guide wheels 14 are parallel to the axial direction of the rotating shaft 8; a pull rope 15 is connected to the electric winch 12; extension frames 16 are respectively fixed on both sides of the outer wall of the hydraulic motor reducer 9; the two extension frames 16 are symmetrically distributed relative to the axial direction of the rotating shaft 8; the pull rope 15 passes around the corresponding guide wheels 14 in turn, passes through the corresponding through slots 13, and is respectively connected to the extension frames 16; the electric winch 12 drives the pull rope 15 to wind, so as to enable the pull rope 15 to drive the hydraulic motor reducer 9 to rotate on the support frame 7.
[0021] Before the drilling operation, the drilling angle of the drilling anchor 10 needs to be adjusted. During this process, the angle of the bracket 4 can be controlled through the action of the hydraulic crank arm 2 itself, so that the bracket 4 is in a more appropriate angle position, avoiding the required angle after the drilling anchor 10 is adjusted being affected by the interference of the bracket 4.
[0022] When adjusting the angle of the drilling anchor 10 afterwards, the pull rope 15 is wound up by the electric winches 12 on both sides respectively, and the pull rope 15 is guided by the guide wheel 14 so that the hydraulic motor reducer 9 can be smoothly pulled to rotate at the support frame 7 through the rotating shaft 8. Since the two extension frames 16 are axially symmetrically distributed relative to the rotating shaft 8, when the pull rope 15 on one side adjusts the angle of the hydraulic motor reducer 9 to the right position by pulling, the pull rope 15 connected to the extension frame 16 on the other side is tightened. At this time, the hydraulic motor reducer 9 can no longer swing to both sides through the rotating shaft 8, thereby realizing the positioning of the hydraulic motor reducer 9, and the drilling anchor 10 is adjusted to the required angle.
[0023] During the drilling process, the real-time control of the winding and unwinding of the electric winch 12 allows the drilling angle of the drilling anchor 10 to be maintained even after the angle of the hydraulic crank arm 2 changes. In addition, if the soil being drilled is relatively uniform and does not cause lateral displacement of the drilling anchor 10, the tension wires on both sides can be loosened after the drilling anchor 10 has drilled to a certain depth, thereby releasing the angle limit on the hydraulic motor reducer 9. In this way, as the hydraulic crank arm 2 is pressed downward, there is no need to separately control the angle of the hydraulic motor reducer 9. The soil itself can be used to limit the drilling anchor 10, so that the drilling anchor 10 can maintain the corresponding drilling angle, providing convenience for the drilling process.
[0024] like Figure 2 As shown, an angle sensor 17 is fixed to the outer wall of the hydraulic motor reducer 9; the angle sensor 17 is connected to the control system of the excavator body 1. By monitoring the angle of the hydraulic motor reducer 9 in real time through the angle sensor 17, the operator can observe the drilling angle of the drilling anchor 10 in real time through the control system of the excavator body 1, facilitating timely adjustment of the positioning and adjustment components.
[0025] like Figure 2 As shown, the guide wheel 14 is a groove wheel structure; the pull rope 15 is guided and limited by the guide wheel 14. The guide wheel 14 is a groove wheel structure that can guide and limit the pull rope 15 more stably, preventing the pull rope 15 from sliding sideways and causing wear on the wall of the through groove 13.
[0026] like Figure 2As shown, the outer side of the guide wheel 14 is respectively provided with a blocking shaft 18; the blocking shaft 18 is rotationally connected between the two vertical plates 6; the axial direction of the blocking shaft 18 is parallel to the axial direction of the guide wheel 14; the pull rope 15 is between the corresponding guide wheel 14 and the blocking shaft 18. Through the blocking of the blocking shaft 18 to the pull rope 15, when the pull rope 15 is relaxed, it can also ensure that the pull rope 15 will not be separated from the guide wheel 14, and the reliability of the positioning adjusting assembly in work is improved.
[0027] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.
Claims
1. A screw anchor drilling machine for use in construction of a crank arm tower foundation, comprising an excavator body (1), a hydraulic crank arm (2) of the excavator body (1) having a free end connected to a bracket (4) via a composite hinge (3), the composite hinge (3) being controlled to move by the hydraulic power of the hydraulic crank arm (2), and characterized in that: The bracket (4) includes a bottom plate (5) and vertical plates (6) fixed parallel to both sides of the upper end of the bottom plate (5); the plane on which the vertical plates (6) are located is parallel to the plane on which the hydraulic crank arm (2) moves; a support frame (7) is fixed to the lower end of the bottom plate (5); a drilling power assembly is provided on the support frame (7); and a positioning adjustment assembly is provided on the bracket (4); The drilling power assembly includes a hydraulic motor reducer (9) rotatably connected to a support frame (7) via a rotating shaft (8); a drilling anchor (10) is coaxially fixed downwardly to the output end of the hydraulic motor reducer (9); the axial direction of the rotating shaft (8) is perpendicular to the plane in which the hydraulic crank arm (2) moves; The positioning adjustment assembly includes two lifting brackets (11) fixed on the upper end of the base plate (5); the upper ends of the lifting brackets (11) are connected to electric winches (12); the base plate (5) is provided with through slots (13) on the outer sides relative to the lifting brackets (11); two guide wheels (14) are rotatably connected between the two vertical plates (6); the guide wheels (14) are arranged one by one above the through slots (13); the axial directions of the electric winches (12) and the guide wheels (14) are parallel to the axial direction of the rotating shaft (8); the electric winch (12) is connected with a pull rope (15); extension frames (16) are fixed on both sides of the outer wall of the hydraulic motor reducer (9); the two extension frames (16) are symmetrically distributed relative to the axis of the rotating shaft (8); the pull rope (15) passes through the corresponding guide wheels (14) in turn, passes through the corresponding through slots (13), and is respectively connected to the extension frames (16); the electric winch (12) drives the pull rope (15) to wind, so as to enable the pull rope (15) to drive the hydraulic motor reducer (9) to hinge and rotate on the support frame (7).
2. The screw anchor drilling machine for crank arm tower foundation construction according to claim 1, characterized in that: An angle sensor (17) is fixed on the outer wall of the hydraulic motor reducer (9); the angle sensor (17) is connected to the control system of the excavator body (1).
3. The screw anchor drilling machine for crank arm tower foundation construction according to claim 1, characterized in that: The guide wheel (14) is a groove wheel structure; the pull rope (15) is guided and limited by the guide wheel (14).
4. The screw anchor drilling machine for crank arm tower foundation construction according to claim 3, characterized in that: A blocking shaft (18) is provided on the outer side of each guide wheel (14); the blocking shaft (18) is rotatably connected between the two vertical plates (6); the axial direction of the blocking shaft (18) is parallel to the axial direction of the guide wheel (14); and the pull rope (15) is located between the corresponding guide wheel (14) and the blocking shaft (18).