Suspension type double-shaft stirring drilling machine
By modifying a traditional single-shaft mixing drill into a suspended dual-shaft mixing drill, and adopting a bidirectional power head and a cage-type bidirectional drill bit, the problems of single function and high cost of existing mixing drills have been solved, achieving efficient mixing and multi-purpose applications, and improving market acceptance and construction safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JUYE HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-19
AI Technical Summary
Existing conventional mixing drills have limited functionality, large size, low reuse rate, and high cost, resulting in low market acceptance. Furthermore, traditional retrofitting is costly and fails to meet multi-purpose needs.
Based on the traditional single-axis mixing drill, it was modified into a suspended double-axis mixing drill. It adopts a bidirectional power head to drive two double-layer bidirectional drill rods and is equipped with a cage-type bidirectional drill bit to enhance the stability of the pile frame and the drill rods, so as to achieve full mixing of soil and cement slurry.
It improves mixing quality and efficiency, meets multi-purpose needs, enhances the equipment's market competitiveness and construction safety, and reduces production costs.
Smart Images
Figure CN224259346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling technology, and more specifically, to a suspended twin-shaft mixing drilling rig. Background Technology
[0002] As competition in the mixing pile foundation market intensifies and equipment prices decrease, buyers are increasingly favoring multi-functional drilling rigs to reduce procurement costs.
[0003] For ordinary mixing drilling rigs, due to their limited functionality, large size, low reusability, and high cost, market acceptance is decreasing.
[0004] For manufacturers, abandoning the production lines for parts and assembly of mixing drills would be too costly and wasteful. To meet market needs, one direction to strive for is to modify the structure of traditional ordinary mixing drills and transform them into other types of drill products, so that the original production lines are not abandoned.
[0005] Currently, twin-shaft mixing equipment has gained high market acceptance due to its significant improvement in mixing quality and relatively higher efficiency. How to modify the traditional mixing drilling machine is an urgent problem to be solved.
[0006] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a suspended twin-shaft mixing drill that is modified from a conventional mixing drill and has higher mixing quality and efficiency.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a suspended twin-shaft mixing drill, including a drill frame, a bidirectional power head, two double-layer bidirectional drill rods, and two sets of cage-type bidirectional drill bits;
[0009] The drilling rig pile frame is a traditional single-axis mixing drilling rig pile frame, and two sets of drill rod suspension guide wheels are installed at the top of the drilling rig pile frame;
[0010] The bidirectional power head is installed on the side of the drilling rig frame, and two double-layer bidirectional drill rods are suspended at the bidirectional power head. The bidirectional power head is used to drive the movement of the two double-layer bidirectional drill rods.
[0011] Two sets of cage-type bidirectional drill bits are respectively installed at the bottom ends of two double-layer bidirectional drill rods;
[0012] The drilling rig pile frame is equipped with a stabilizing frame in the lower area of the two double-layer bidirectional drill rods to keep the lower part of the two double-layer bidirectional drill rods stable relative to the drilling rig pile frame.
[0013] Based on the above, a diagonal brace is provided between the base and the column of the pile frame to support the pile frame.
[0014] Based on the above, the bidirectional power head includes a power head bracket, two motors, two reducers, and two sets of bidirectional output shafts. The two motors and two reducers are installed in a group and horizontally spaced on the power head bracket. The motors are installed vertically, and the two sets of bidirectional output shafts are connected to the output end of the reducers.
[0015] Based on the above, the power head support includes a base frame and a vertical frame. The vertical frame is installed at the center of the base frame, and two motors and two reducers are respectively installed on the base frame on both sides of the vertical frame.
[0016] Based on the above, the stabilizing frame includes a rectangular frame installed in the lower area of the drilling rig pile frame, and bushings are provided on the rectangular frame corresponding to two double-layer bidirectional drill rods.
[0017] Based on the above, the rectangular frame comprises a rectangular frame formed by welding two long-side I-beams and two short-side rectangular steel pipes. Several sets of mounting holes are arranged in a row on the side plates of the two long-side I-beams. The bushing is installed in the mounting holes of the I-beams in an adjustable manner by bolts.
[0018] Based on the above, the column of the drilling rig pile frame is installed at the front of the base, and the rear end of the base forms a counterweight.
[0019] Based on the above, the front and rear parts of the base are provided with beams that extend in the left and right direction and exceed the width of the base.
[0020] This utility model has substantial features and advancements compared to existing technologies. Specifically, it modifies the traditional single-axis mixing drill by using a bidirectional power head to drive two double-layer bidirectional drill rods to operate synchronously. A cage-type bidirectional drill bit is configured at the bottom to achieve full mixing of soil and cement slurry, resulting in more efficient and reliable pile formation. This effectively leverages the construction capabilities of the pile driver and meets the market's demand for improved mixing piles.
[0021] Simultaneously, corresponding improvements were made to the stability of the pile frame itself and the drill rod, so that the improved pile driver could meet the working requirements and ensure the safety and structural stability of the overall construction. Attached Figure Description
[0022] Figure 1 This is a structural schematic diagram of the suspended twin-shaft mixing drill of this utility model.
[0023] Figure 2 This is a schematic diagram of the bidirectional power head in this utility model.
[0024] Figure 3 This is a structural schematic diagram of the stabilizer and cage-type bidirectional drill bit in this utility model.
[0025] In the diagram: 1. Drilling rig frame; 2. Bidirectional power head; 3. Double-layer bidirectional drill rod; 4. Cage-type bidirectional drill bit; 11. Drill rod suspension guide wheel; 12. Base; 13. Column; 14. Diagonal brace; 15. Beam frame; 16. Stabilizer; 17. Bushing; 18. Mounting hole; 21. Power head bracket; 22. Motor; 23. Reducer; 24. Bidirectional output shaft. Detailed Implementation
[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0027] like Figures 1-3 As shown, a suspended twin-shaft mixing drill includes a drill frame 1, a bidirectional power head 2, two double-layer bidirectional drill rods 3, and two sets of cage-type bidirectional drill bits 4.
[0028] The drilling rig pile frame 1 is a traditional single-axis mixing drilling rig pile frame. The top of the drilling rig pile frame 1 is equipped with two sets of drill rod suspension guide wheels 11, which are used to suspend and pull the bidirectional power head 2 through ropes to maintain its high-altitude stability. In this embodiment, since the output end is changed to two double-layer bidirectional drill rods 3, two sets of motors and reducers are also required. Therefore, it is necessary to improve the stability of the drilling rig pile frame 1. Specifically, a diagonal brace 14 is set between the base 12 and the column 13 of the pile frame 1 to support the structural stability of the pile frame. At the same time, the column 13 of the drilling rig pile frame is installed at the front of the base 12, and the rear end of the base 12 forms a counterweight. The front and rear of the base 12 are equipped with beams 15 that extend in the left and right direction and exceed the width of the base, increasing the contact area with the ground and forming a pile frame structure with higher bottom stability to meet the structural stability requirements of the dual-axis power.
[0029] The bidirectional power head 2 is installed on the side of the drilling rig frame 1. Two double-layer bidirectional drill rods 3 are suspended and installed at the bidirectional power head 2. The bidirectional power head 2 is used to drive the movement of the two double-layer bidirectional drill rods 3. Specifically, in this embodiment, the bidirectional power head 2 includes a power head bracket 21, two motors 22, two reducers 23, and two sets of bidirectional output shafts 24. The two motors 22 and the two reducers 23 are installed in a matching group and horizontally spaced on the power head bracket 21. The motors 22 are installed vertically, and the two sets of bidirectional output shafts 24 are connected to the output end of the reducers 23. The power head bracket 21 includes a base frame and a vertical frame. The vertical frame is installed at the center of the base frame, and the two motors 22 and the two reducers 23 are respectively installed on the base frame on both sides of the vertical frame.
[0030] The motor 22 of the bidirectional power head 2 outputs bidirectional power outward through the reducer 23 and the bidirectional output shaft 24. The outer ring drives the outer rod of the double-layer bidirectional drill rod, and the inner ring drives the inner rod of the double-layer bidirectional drill rod, so as to realize the rotation of the inner and outer rods in different directions.
[0031] Two sets of cage-type bidirectional drill bits 4 are respectively installed at the bottom of two double-layer bidirectional drill rods 3. The cage-type bidirectional drill bit 4 includes outer cage-type blades and inner blades installed on the rotating shaft. The inner and outer blades rotate in opposite directions, cutting the soil in both directions, resulting in higher mixing degree and efficiency.
[0032] A stabilizing frame 16 is provided in the lower area of the two double-layer bidirectional drill rods 3 corresponding to the drilling rig pile frame 1. This is used to keep the lower part of the two double-layer bidirectional drill rods 4 stable relative to the drilling rig pile frame 1. Specifically, the stabilizing frame 16 includes a rectangular frame installed in the lower area of the drilling rig pile frame. A bushing 17 is provided on the rectangular frame corresponding to the two double-layer bidirectional drill rods. The rectangular frame includes a rectangular frame formed by welding two long-side I-beams and two short-side rectangular steel pipes. Several sets of mounting holes 18 are arranged in a row on the side plates of the two long-side I-beams. The bushing is installed in the mounting holes of the I-beams in an adjustable manner by bolts.
[0033] Technical principle explanation:
[0034] Since the entire device is based on the improvement of the single-axis mixing pile, the overall stability of the single-axis mixing pile needs to be strengthened. Therefore, the improvement of the drilling rig pile frame 1 mainly includes the matching of the base and the column. The tail end of the base is lengthened and the column is installed in front to form a stronger counterweight. At the same time, a triangular structure is formed by connecting the diagonal brace 14, which ensures stability. The base is also equipped with a beam frame 17 to increase the grounding area and further improve stability.
[0035] The core component is the modification of the drill rod. The traditional single-axis unidirectional stirring mode is abandoned and replaced with two mainstream double-layer bidirectional drill rods 3. The two drill rods are driven to operate synchronously by the bidirectional power head 2. The power head support 21 at the top and the stabilizing frame 16 at the bottom work together to keep the two double-layer bidirectional drill rods 3 relatively stable during operation.
[0036] The double-layer bidirectional drill rod 3 connects to the cage-type bidirectional drill bit 4, which transmits power bidirectionally to the drill bit blades. The cutting blades on the outer cage-type drill bit frame and the cutting blades on the inner drill bit rod shear each other, so that the soil and the cement slurry pumped to the drill bit are fully mixed to form a uniformly distributed mixing pile body, and the pile quality is reliable.
[0037] To improve work efficiency and effectively utilize the construction capabilities of the pile foundation, two piles are constructed simultaneously, forming a dual-axis, dual-mixing construction state, which achieves good construction results and makes it more competitive than single-axis mixing pile products.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A suspended twin-shaft mixing drill, characterized in that: It includes a drilling rig frame, a two-way power head, two double-layer two-way drill rods, and two sets of cage-type two-way drill bits; The drilling rig pile frame is a traditional single-axis mixing drilling rig pile frame, and two sets of drill rod suspension guide wheels are installed at the top of the drilling rig pile frame; The bidirectional power head is installed on the side of the drilling rig frame, and two double-layer bidirectional drill rods are suspended at the bidirectional power head. The bidirectional power head is used to drive the movement of the two double-layer bidirectional drill rods. Two sets of cage-type bidirectional drill bits are respectively installed at the bottom ends of two double-layer bidirectional drill rods; The drilling rig pile frame is equipped with a stabilizing frame in the lower area of the two double-layer bidirectional drill rods to keep the lower part of the two double-layer bidirectional drill rods stable relative to the drilling rig pile frame.
2. The suspended twin-shaft mixing drill rig according to claim 1, characterized in that: The base and column of the pile frame are provided with diagonal bracing to support the pile frame.
3. The suspended twin-shaft mixing drill rig according to claim 2, characterized in that: The bidirectional power head includes a power head bracket, two motors, two reducers, and two sets of bidirectional output shafts. The two motors and two reducers are installed in a group and horizontally spaced on the power head bracket. The motors are installed vertically, and the two sets of bidirectional output shafts are connected to the output end of the reducers.
4. The suspended twin-shaft mixing drill rig according to claim 3, characterized in that: The power head support includes a base frame and a vertical frame. The vertical frame is installed at the center of the base frame, and two motors and two reducers are respectively installed on the base frame on both sides of the vertical frame.
5. The suspended twin-shaft mixing drill rig according to claim 4, characterized in that: The stabilizing frame includes a rectangular frame installed in the lower area of the drilling rig pile frame, and bushings are provided on the rectangular frame corresponding to two double-layer bidirectional drill rods.
6. The suspended twin-shaft mixing drill rig according to claim 5, characterized in that: The rectangular frame comprises a rectangular frame formed by welding two long-side I-beams and two short-side rectangular steel pipes. Several sets of mounting holes are arranged in rows on the side plates of the two long-side I-beams. The bushing is installed in the mounting holes of the I-beams in an adjustable manner by bolts.
7. The suspended twin-shaft mixing drill rig according to claim 6, characterized in that: The column of the drilling rig pile frame is installed at the front of the base, and the rear end of the base forms a counterweight.
8. The suspended twin-shaft mixing drill rig according to claim 2, characterized in that: The base is provided with beams extending in the left and right direction and exceeding the width of the base at both the front and rear.