Mechanical drill bit for mixing pile

Abstract

The utility model relates to the technical field of drill bits, and discloses a mixing pile mechanical drill bit. The deep mixing pile drill bit comprises a drill rod, and further comprises a fixing block fixedly connected between the inner walls of the drill rod; the insertion grooves are formed in the drill rod and the fixing block and are divided into a left group and a right group; the limiting grooves are formed in the left side and the right side of the interior of the fixing block, through the arranged fixing block, the stirring rod can be inserted into the fixing block through the connecting block, the limiting blocks are pushed through the connecting block to extrude the limiting springs, then the stirring rod is rotated to enable the limiting springs to push the limiting blocks to enter the clamping grooves, and then the stirring rod can be rapidly fixed to the surface of the drill rod; when the stirring rod needs to be disassembled, the stirring rod is pushed to enable the connecting block to push the matching block to move upwards, the matching block drives the limiting block to be separated from the clamping groove through the connecting rod, and then the stirring rod can be rotationally pulled out, so that the stirring rod is disassembled, and the drilling tool can be replaced in time when being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to drill bit technical field, concretely is a kind of mixing pile mechanical drill bit. BACKGROUND

[0002] At present, the existing deep mixing method is mainly to use deep mixer to construct, use cement, lime and other materials as curing agent, use low-pressure slurry pump to pump curing slurry to the ground deep, directly mix soft soil and curing agent by stirring blade, so that it forms high-strength reinforcement.

[0003] The technical scheme of the disclosed mixing pile drilling machine drill bit is as follows: a connecting head, a drill rod, a conical drill tip and a blade assembly for cutting soil are included; the input end of the connecting head is fixedly connected with the output end of a drilling machine; the output end of the connecting head is fixedly connected with one end of the drill rod; the conical drill tip is arranged at the other end of the drill rod; the upper end of the drill rod is provided with two layers of blades for stirring soil; the use of the new type can realize multiple guniting, and ensure that the cement slurry is sprayed to the stirring range of the stirring rod, so that the cement slurry and the soil can be stirred in time, the stirring quality of the cement-soil mixing pile is improved, and the stirring uniformity of the cement slurry and the soil is effectively improved; however, since the drill rod and the stirring blades are fixed, damage may occur during long-term use, and some drill bits are integrated, so that the entire drill bit cannot be used when the drill bit is damaged, and the working efficiency is reduced. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a mixing pile mechanical drill bit, which solves the problems that since the drill rod and the stirring blades are fixed, damage may occur during long-term use, some drill bits are integrated, the entire drill bit cannot be used when the drill bit is damaged, and the working efficiency is reduced.

[0005] To achieve the above object, the utility model realizes the following technical scheme: a mixing pile mechanical drill bit, comprising a drill rod, further comprising:

[0006] A fixed block is fixedly connected between the inner walls of the drill rod;

[0007] An insertion slot is arranged inside the drill rod and the fixed block, and is provided with two groups of left and right;

[0008] A limiting slot is arranged inside the fixed block on the left and right sides, and is symmetrically distributed in two layers of upper and lower;

[0009] A limiting block is slidably connected inside the limiting slot;

[0010] A matching slot is arranged inside the fixed block on one side of the limiting slot;

[0011] The mating block is slidably connected inside the mating groove;

[0012] A limiting spring is fixedly connected between the inner wall of the limiting groove and the limiting block;

[0013] The connecting rod is fixedly connected between the limiting block and the mating block;

[0014] A connecting block is disposed inside the fixing block;

[0015] Engaging grooves are formed on both sides of the fixing block;

[0016] The surfaces of the fixed block, the limiting block, and the mating block that are in contact with each other are all designed as matching inclined surfaces;

[0017] The stirring rod is fixedly connected to one side surface of the connecting block;

[0018] The drill bit is fixedly connected to both sides of the surface of the stirring rod.

[0019] Furthermore, threaded holes are provided on the upper surface of the stirring rod, and a fixing ring is slidably fitted on the surface of the drill rod. The fixing ring is threadedly connected to a fixing bolt through the threaded hole for fixing.

[0020] Furthermore, several mounting components are fixedly connected to the lower surface of the stirring rod. Sliding grooves are provided on both the left and right sides of the inner wall of each mounting component. A blocking block is slidably connected inside each sliding groove to block the mud and prevent the mud from entering the stirring rod. Waterproof pads are fixedly installed on opposite sides of the two blocking blocks. A water outlet is provided below the blocking block.

[0021] Furthermore, a blocking spring is fixedly connected between the blocking block and the sliding groove.

[0022] Furthermore, a drill bit is fixedly connected to the lower surface of the drill rod, and a probe is provided on both sides of the lower surface of the drill bit.

[0023] Furthermore, the fixing block and the stirring rod are configured in at least three sets, and each fixing block and the stirring rod is provided with a water inlet.

[0024] Beneficial effects

[0025] This utility model provides a mechanical drill bit for mixing piles. Compared with the prior art, it has the following advantages:

[0026] (1) the deep mixing pile drill bit, the fixed block is set, the stirring rod can be inserted into the fixed block through the connecting block, the connecting block pushes the limiting block to extrude the limiting spring, then the stirring rod is rotated to make the limiting spring push the limiting block into the clamping groove, the stirring rod can be quickly fixed on the surface of the drill rod, when the stirring rod needs to be disassembled, the stirring rod is pushed to make the connecting block push the matching block to move upward, so that the matching block drives the limiting block to separate from the clamping groove through the connecting rod, the stirring rod can be rotated and extracted, the disassembly of the stirring rod is realized, and the stirring rod can be replaced in time when the drill bit is damaged.

[0027] (2) the deep mixing pile drill bit, the fixed block is set, the stirring rod can be inserted into the fixed block through the connecting block, the connecting block pushes the limiting block to extrude the limiting spring, then the stirring rod is rotated to make the limiting spring push the limiting block into the clamping groove, the stirring rod can be quickly fixed on the surface of the drill rod, when the stirring rod needs to be disassembled, the stirring rod is pushed to make the connecting block push the matching block to move upward, so that the matching block drives the limiting block to separate from the clamping groove through the connecting rod, the stirring rod can be rotated and extracted, the disassembly of the stirring rod is realized, and the stirring rod can be replaced in time when the drill bit is damaged. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the overall perspective view of the structure of the utility model;

[0029] Figure 2 It is the overall sectional view of the structure of the utility model;

[0030] Figure 3 It is the overall perspective view of the structure of the utility model Figure 2 It is the local enlarged view of A in the utility model;

[0031] Figure 4 It is the sectional view of the stirring rod of the structure of the utility model;

[0032] Figure 5 It is the schematic view of the connecting block of the structure of the utility model;

[0033] Figure 6 It is the overall perspective view of the structure of the utility model Figure 4 It is the local enlarged view of B in the utility model.

[0034] In the figure: 1, drill rod; 2, fixed block; 3, insertion slot; 4, limiting groove; 5, limiting block; 6, feeler probe; 7, matching block; 8, limiting spring; 9, connecting rod; 10, connecting block; 11, clamping groove; 12, stirring rod; 13, drill bit; 14, fixed ring; 15, fixed bolt; 16, mounting; 17, blocking block; 18, blocking spring; 19, drill bit; 20, waterproof pad; 21, water outlet. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] The utility model provides two technical schemes:

[0037] For example, Figures 1-5 The first technical scheme is shown: a stirring pile mechanical drill bit, including drill rod 1, still include: fixed block 2, fixedly connected between the inner wall of drill rod 1;Insertion slot 3, be set up in the inside of drill rod 1 and fixed block 2, and be provided with left and right two groups;Limiting groove 4, be set up in the inside left and right sides of fixed block 2, and symmetrically distribute upper and lower two layers;Limiting block 5, slidingly connected in the inside limiting groove 4;Matching groove, all be set up in the inside fixed block 2, and be located in the side of limiting groove 4;Matching block 7, slidingly connected in the inside matching groove;Limiting spring 8, fixedly connected between the inner wall of limiting groove 4 and limiting block 5;Connecting rod 9, fixedly connected between limiting block 5 and matching block 7;Connecting block 10, be set up in the inside fixed block 2;Clamping groove 11, be set up in the surface of both sides of fixed block 2;The surface of fixed block 2 and limiting block 5, matching block 7 adjoin is all set as the inclined plane of cooperation;Stirring rod 12, fixedly connected in the side surface of connecting block 10;Drill bit 13, fixedly connected in the both sides of the surface of stirring rod 12, by the fixed block 2 set up, can insert stirring rod 12 through connecting block 10 in the inside fixed block 2, by connecting block 10 to push limiting block 5 extrude limiting spring 8, then rotate stirring rod 12 to make limiting spring 8 push limiting block 5 to enter the inside clamping groove 11, can fasten stirring rod 12 on the surface of drill rod 1 immediately, when needing to disassemble stirring rod 12, just push stirring rod 12 to make connecting block 10 push matching block 7 to move upwards, so that matching block 7 drives limiting block 5 and clamping groove 11 to separate through connecting rod 9, can rotate and extract stirring rod 12, realize the disassembly of stirring rod 12, can replace in time when drill bit 13 is damaged.

[0038] For example, Figures 1-5Also shown is a second embodiment, the main difference with the first embodiment is that a stirring pile mechanical drill bit is provided, the upper surface of the stirring rod 12 is provided with a threaded hole, the surface of the drill rod 1 is slidably sleeved with a fixing ring 14, the fixing ring 14 is threadedly connected with a fixing bolt 15 through the threaded hole, the lower surface of the stirring rod 12 is fixedly connected with a plurality of mounting pieces 16, the inner walls of the mounting pieces 16 are provided with sliding grooves on the left and right sides, the sliding grooves are slidably connected with blocking blocks 17, waterproof pads 20 are fixedly installed on the opposite sides of the two blocking blocks 17, the waterproof pads 20 can effectively prevent water from flowing out through the gap between the two blocking blocks 17 when the weight of the water is not enough to push the blocking blocks 17 apart, a water outlet 21 is arranged below the blocking blocks 17, blocking springs 18 are fixedly connected between the blocking blocks 17 and the sliding grooves, a drill bit 19 is fixedly connected to the lower surface of the drill rod 1, probe heads 6 are arranged on the lower surface of the drill bit 19, the fixing block 2 and the stirring rod 12 are provided in at least three groups, the fixing block 2 and the stirring rod 12 are provided with water inlets, the blocking blocks 17 can block the mud, preventing the mud from entering the inside of the stirring rod 12 and causing blockage, when the water flow sprays out, the blocking blocks 17 are pushed to extrude the blocking springs 18 and separate outward, so that the water flow sprays out, the fixing ring 14 can tighten the stirring rod 12, the probe heads 6 can work cooperatively with the deep stirring machine, the stratum condition is judged through real-time feedback, the construction parameters such as the amount of sprayed mortar, drilling speed / raising speed are adjusted autonomously by the ground control system. The mortar preparation and drilling are carried out synchronously, the stirring rod 6 is used for identification, the whole pile two-spraying four-stirring process is used for the soil layer without silt, the whole pile four-spraying four-stirring process is used for the silt layer, the amount of cement is reasonably controlled through automatic adjustment of parameters, automatic and intelligent operation is realized, the cost is reduced, and the efficiency is improved.

[0039] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0040] In use, first, the fixing ring 14 is sleeved on the surface of the drill rod 1, then the connecting block 10 connected with the stirring rod 12 is inserted into the fixed block 2 through the insertion slot 3, then the connecting block 10 fixedly connected with one side of the stirring rod 12 is inserted into the fixed block 2 through the insertion slot 3, when the connecting block 10 is inserted, the upper and lower limiting blocks 5 are pushed to move outward to extrude the limiting spring 8, when the connecting block 10 is completely inserted into the fixed block, the limiting spring 8 pushes the matching block 7 out due to elastic potential, then the stirring rod 12 is rotated to make the limiting spring 8 push the matching block 7 out due to elastic potential, so that the limiting block 5 is inserted into the clamping slot 11 to fix the stirring rod 12, then the fixing ring 14 is fixedly connected with the surface of the stirring rod 12 through the fixing bolt 15, and the stirring operation can be performed, when it is needed to spray and stir the stratum, the water flows into the drill rod 1, then enters the stirring rod 12 through the water inlet, the water flow pushes the blocking block 17 to move outward to extrude the blocking spring 18, so that the water is sprayed out from the water outlet 21 in the mounting piece 16 to perform the spraying and stirring operation, when it is needed to remove the stirring rod 12, the fixing bolt 15 is removed, then the connecting block 10 is pushed to move into the drill rod 1, so that the drill rod 1 pushes the matching block 7 to move outward, the matching block 7 drives the limiting block 5 to move outward through the connecting rod 9, so that the limiting block 5 is separated from the clamping slot 11, then the stirring rod 12 is rotated, so that the connecting block 10 is rotated, and the connecting block 10 can be disassembled through the stirring rod 12, when the drill rod 1 works, the feeler probe 6 cooperates with the deep layer stirrer to work, judges the stratum condition through real-time feedback, and adjusts the construction parameters such as the spraying amount, drilling / hoisting speed and the like through the ground control system.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mechanical drill bit for a soil mixing column, comprising a drill rod (1), characterised in that It also includes: The fixed block (2) is fixedly connected between the inner wall of the drill rod (1); The insertion slot (3) is provided with left and right two groups; The limiting slot (4) is provided with upper and lower two layers; The limiting block (5) is slidably connected in the limiting slot (4); The matching groove is provided in the inner wall of the fixed block (2) and located on one side of the limiting slot (4); The matching block (7) is slidably connected in the matching groove; The limiting spring (8) is fixedly connected between the inner wall of the limiting slot (4) and the limiting block (5); The connecting rod (9) is fixedly connected between the limiting block (5) and the matching block (7); The connecting block (10) is provided in the fixed block (2); The clamping groove (11) is provided on the surface of the fixed block (2); The surface of the fixed block (2) and the limiting block (5) and the matching block (7) are matched with the inclined surface; The stirring rod (12) is fixedly connected on one side surface of the connecting block (10); The drill bit (13) is fixedly connected on both sides of the surface of the stirring rod (12).

2. A mechanical auger bit according to claim 1, characterized in that: The upper surface of the stirring rod (12) is provided with a threaded hole, the surface of the drill rod (1) is slidably provided with a fixed ring (14), and the fixed ring (14) is threadedly connected with a fixed bolt (15) through the threaded hole.

3. A mechanical auger bit according to claim 1, wherein: The lower surface of the stirring rod (12) is fixedly connected with a plurality of mounting pieces (16), the inner wall of the mounting piece (16) is provided with a sliding groove on both sides, the sliding groove is slidably connected with a blocking block (17), the opposite side of the two blocking blocks (17) is fixedly provided with a waterproof pad (20), and the lower side of the blocking block (17) is provided with a water outlet (21).

4. A mechanical auger bit according to claim 3, wherein: The blocking spring (18) is fixedly connected between the blocking block (17) and the sliding groove.

5. A mechanical auger bit according to claim 1, wherein: The lower surface of the drill rod (1) is fixedly connected with a drill bit (19), and the lower surface of the drill bit (19) is provided with a touch probe (6) on both sides.

6. A mechanical auger bit according to claim 1, wherein: The fixed block (2) and the stirring rod (12) are provided as at least three groups, and the fixed block (2) and the stirring rod (12) are provided with a water inlet.

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