Grooving drill bit for super-thick diaphragm wall complex stratum

Abstract

A grooving drill bit for an ultra-thick diaphragm wall complex stratum belongs to the technical field of engineering construction and comprises a conical pipe, the top of the conical pipe is fixedly connected with a lifting structural body, the lifting structural body is connected with a percussion drill steel wire rope, and the outer wall of the lower end of the conical pipe is fixedly connected with a plurality of evenly-arranged large wing irons in the circumferential direction of the conical pipe. Small fin irons are arranged between any two adjacent large fin irons, and a plurality of evenly-distributed drill bit abrasion-resistant blocks are welded to the bottom of the conical pipe in the circumferential direction of the conical pipe. The counter weight of the drill bit can be increased, so that the impact drill bit is endowed with larger impact force, the stability and the rock breaking effect of the drill bit are improved, the construction efficiency is improved, and the engineering quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering construction technical field relates to 2m thick big depth plastic concrete anti -infiltration (protect) wall grooving percussion drill bit, especially in, a kind of grooving drill bit for complex stratum of super-thick anti-infiltration wall. BACKGROUND

[0002] Drill wedge method grooving type concrete anti-infiltration (protect) wall construction technology, there is more mature and excellent matching scheme and construction machinery tool in the field of 40m level depth wall thickness 60cm, 80cm, 100cm, 120cm etc., but for 50m level depth and above, thickness 2m level concrete wall field currently there is no corresponding matching percussion drill bit.

[0003] For super-deep super-thick groove, the anti-deviation performance, wear resistance, rock breaking efficiency of the existing percussion drill bit cannot meet the progress and quality requirements in the project implementation process;Considering the uneven distribution characteristics of typical giant floating boulders in grooving stratum, combined with engineering needs, it is urgent to develop a high-efficiency durable grooving drill bit for complex stratum of super-thick anti-infiltration wall. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a grooving drill bit for complex stratum of super-thick anti-infiltration wall, to solve the technical problem that the anti-deviation performance, wear resistance, rock breaking efficiency of the existing percussion drill bit cannot meet the progress and quality requirements in the project implementation process.

[0005] To achieve the above-mentioned purposes and other related purposes, the utility model provides a grooving drill bit for complex stratum of super-thick anti-infiltration wall, comprising a spinal canal, the top of the spinal canal is fixedly connected with a lifting structure, the lifting structure is connected with a percussion drill rig steel wire rope, the outer wall of the lower end of the spinal canal is fixedly connected with a plurality of evenly arranged large fin irons along the circumferential direction of the spinal canal, small fin irons are arranged in the middle of any two adjacent large fin irons, and a plurality of evenly distributed drill wear-resistant blocks are welded to the bottom of the spinal canal along the circumference thereof.

[0006] Preferably in any of the above solutions, the lower part of the spinal canal is thickened to form a trumpet shape.

[0007] Preferably in any of the above solutions, the lifting structure comprises a plurality of connection blocks evenly distributed along the circumference of the spinal canal, one end of the connection block is welded to the outer wall of the spinal canal, the other end of the plurality of connection blocks is internally provided with a connection column welded to the inner wall of the connection block, the connection column is internally provided with a rotatable connection assembly, and the end of the connection assembly is connected with the percussion drill rig steel wire rope.

[0008] Preferably in any of the above solutions, the connecting block comprises integrally formed first, second and third connecting portions, the first connecting portion is welded to the outer wall of the spinal canal, the connecting column is welded to the inner wall of the third connecting portion, and the diameters of the connecting blocks between the first, second and third connecting portions gradually decrease.

[0009] Preferably in any of the above solutions, the connecting assembly comprises a connecting rod, the connecting rod is rotatably connected to the connecting column, one end of the connecting rod extends out of the connecting column and is fixedly connected to a limiting block, the other end of the connecting rod extends out of the connecting column and is fixedly connected to two positioning blocks, and the two positioning blocks are symmetrically welded to the outer wall of the connecting rod.

[0010] Preferably in any of the above solutions, the end portions of the two positioning blocks symmetrically have connecting holes extending out of the connecting rod, pins are arranged in the two connecting holes, and the impact drill steel wire rope is connected to the lifting structure through the pins.

[0011] Preferably in any of the above solutions, the large and small fin irons each comprise first and second connecting plates connected to each other, one side of the first connecting plate is welded to the outer wall of the spinal canal, and the width of the other side of the first connecting plate gradually increases from top to bottom.

[0012] Preferably in any of the above solutions, two groups of wing guards are connected between any two adjacent large and small fin irons, and the wing guards form a circular structure between them.

[0013] Preferably in any of the above solutions, one group of the wing guards is connected to the middle portions of the large and small fin irons, and the other group of the wing guards is connected to the outer walls of the large and small fin irons, and the outer walls of the wing guards connected to the outer walls of the large and small fin irons are also welded with drill bit wear-resistant blocks.

[0014] Preferably in any of the above solutions, the outer sides of the bottom portions of the large and small fin irons are also welded with drill bit wear-resistant blocks.

[0015] As described above, the utility model of a kind of super-thick anti-infiltration wall complex stratum with trenching drill bit has the following beneficial effects:

[0016] 1、in the utility model, large fin iron and small fin iron are installed, which can increase the drill bit weight, and give the impact drill greater impact force; at the same time, large fin iron and small fin iron can break different size of isolated boulders, reduce the probability of sticking drill, improve efficiency and improve engineering quality.

[0017] 2、in the utility model, wing guard can increase the drill bit weight, stability and rock breaking effect, effectively reduce the sticking drill, expand the drill bit cross-sectional area, ensure the trenching thickness, and ensure the engineering quality.

[0018] 3. The drill bit wear-resistant block can increase the wear resistance of the drill bit, increase the effective use time of the drill bit, and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A three-dimensional structure schematic diagram of the utility model is shown.

[0020] Figure 2 A three-dimensional structure schematic diagram of the utility model is shown. Figure 1 An enlarged schematic diagram at A in the middle is shown.

[0021] ELEMENT NUMBER EXPLANATION

[0022] 1 - lifting structure; 11 - connecting block; 111 - first connecting part; 112 - second connecting part; 113 - third connecting part; 12 - connecting column; 13 - connecting rod; 14 - limiting block; 15 - positioning block; 151 - connecting hole; 16 - pin lock; 2 - spinal canal; 3 - large fin iron; 31 - first connecting plate; 32 - second connecting plate; 4 - small fin iron; 5 - wing guard; 6 - drill bit wear-resistant block; 7 - impact drill steel wire rope. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0024] Please refer to Figures 1-2 It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportional relationship or adjustment of size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of implementation of the utility model. The change or adjustment of the relative relationship, without substantial change of technical content, is also regarded as the scope of implementation of the utility model.

[0025] Please refer to Figures 1-2The utility model provides a kind of super-thick anti-infiltration wall complex stratum with grooving drill bit, including spinal canal 2, the top of spinal canal 2 is fixedly connected with lifting structure body 1, impact drill rig wire rope 7 is connected on lifting structure body 1, the outer wall of the lower end of spinal canal 2 is fixedly connected with several evenly arranged large fin iron 3 along the circumferential direction of spinal canal 2, small fin iron 4 is equipped in the middle of any two adjacent large fin iron 3, the bottom of spinal canal 2 is welded with several evenly distributed drill bit wear blocks 6 along its circumference.

[0026] When the embodiment is used, in order to solve the technical problems that the existing impact drill bit cannot meet the progress and quality requirements in the project implementation process in terms of anti-deviation performance, wear resistance and rock breaking efficiency for super-deep and super-thick groove, the embodiment proposes a kind of super-thick anti-infiltration wall complex stratum with grooving drill bit, including spinal canal 2, lifting structure body 1, large fin iron 3, small fin iron 4 and drill bit wear block 6. Among them, lifting structure body 1 is connected with impact drill rig wire rope 7 to form an overall lifting structure, increase the weight of drill bit, improve the operability and stability of drill bit. By changing the cone pipe structure of traditional impact drill bit, adding large fin iron 3 and small fin iron 4, increasing the weight of drill bit, giving impact drill bit greater impact force; change the overall structure configuration, break different particle size boulders through large fin iron 3 and small fin iron 4, reduce the probability of sticking drill, improve efficiency and improve engineering quality. At the same time, drill bit wear block 6 is welded at the bottom of the cone pipe to increase the wear resistance of the drill bit, increase the effective use time of the drill bit and improve the efficiency.

[0027] In the embodiment, spinal canal 2 is cast iron centrifugal casting of 3100Kg, forming a whole structure, and the lower part of spinal canal 2 is thickened and shaped like a trumpet.

[0028] In the embodiment, drill bit wear block 6 is a wear-resistant body with a thickness of 4cm and a width of 13cm, symmetrically and uniformly welded at the bottom of the cone pipe.

[0029] As a further description of the above embodiment, the lifting structure body 1 includes a plurality of connection blocks 11 evenly distributed along the circumference of the spinal canal 2, one end of the connection block 11 is welded to the outer wall of the spinal canal 2, the other end of the plurality of connection blocks 11 is internally provided with a connection column 12 welded to the inner wall of the connection block 11, the connection column 12 is internally provided with a rotatable connection assembly, and the end of the connection assembly is connected with the impact drill rig wire rope 7. The connection assembly includes a connecting rod 13, the connecting rod 13 is rotatably connected in the connection column 12, one end of the connecting rod 13 extends out of the connection column 12 and is fixedly connected with a limiting block 14, the other end of the connecting rod 13 extends out of the connection column 12 and is fixedly connected with two positioning blocks 15, and the two positioning blocks 15 are symmetrically welded to the outer wall of the connecting rod 13.

[0030] The lifting structure 1 includes three connecting blocks 11 which are evenly welded to the outer wall of the spinal canal 2. The other end of the connecting block 11 is welded and fixedly connected to the connecting column 12, and the connecting column 12 is connected to the rotatable connecting rod 13. The connecting rod 13 can rotate 360° in the connecting column 12, thereby changing the operability of the drill bit.

[0031] In this embodiment, the connecting rod 13 is connected to the limiting block 14 and the positioning block 15 at both ends, respectively, which can ensure that the connecting rod 13 rotates in the connecting column 12 without falling off, thereby ensuring the stability of the drill bit.

[0032] As a further description of the above embodiment, the end of the two positioning blocks 15 extends out of the connecting rod 13 and is symmetrically provided with a connecting hole 151, and a pin lock 16 is arranged in the two connecting holes 151. The impact drill steel wire rope 7 is connected to the lifting structure 1 through the pin lock 16.

[0033] When the embodiment is used, the connecting hole 151 is provided on the positioning block 15, which facilitates the connection of the impact drill steel wire rope 7 to the lifting structure 1 through the pin lock 16. Specifically, the pin lock 16 is fixed after passing through the two connecting holes 151, and one end of the impact drill steel wire rope 7 is bent after passing around the pin lock 16. The bent impact drill steel wire rope 7 is detachably connected to the original impact drill steel wire rope 7 through a plurality of connecting buckles, thereby facilitating the installation and disassembly of the drill bit.

[0034] As a further description of the above embodiment, the connecting block 11 includes a first connecting part 111, a second connecting part 112 and a third connecting part 113 which are integrally formed. The first connecting part 111 is welded to the outer wall of the spinal canal 2, and the connecting column 12 is welded to the inner wall of the third connecting part 113. The diameters of the three connecting blocks 11 gradually decrease from the first connecting part 111 to the second connecting part 112 to the third connecting part 113.

[0035] When the embodiment is used, the diameters of the three connecting blocks 11 gradually decrease from the first connecting part 111 to the second connecting part 112 to the third connecting part 113, which facilitates the connection of the pin lock 16, reduces the length of the pin lock 16, and avoids the pin lock 16 from being easily bent during use due to the excessive length of the pin lock 16, thereby improving the service life of the pin lock 16.

[0036] As a further description of the above embodiment, the large fin iron 3 and the small fin iron 4 are connected to each other by a first connecting plate 31 and a second connecting plate 32. One side of the first connecting plate 31 is welded to the outer wall of the spinal canal 2, and the other side of the first connecting plate 31 gradually increases in width from top to bottom.

[0037] In use, the first connecting plate 31 and the second connecting plate 32 on the large wing iron 3 and the small wing iron 4 are connected to form a stepped shape, and the outer side width of the first connecting plate 31 increases from top to bottom, which can facilitate the drilling of the drill bit and reduce the frictional resistance in the drilling process of the drill bit.

[0038] In the embodiment, the first connecting plate 31 and the second connecting plate 32 are integrally formed. However, the connection mode is not limited to integral forming, and other connection modes capable of achieving stable connection between the first connecting plate 31 and the second connecting plate 32 can also be used, such as welding and fixing between the first connecting plate 31 and the second connecting plate 32, and welding of a reinforcing steel bar (not shown in the figure) between the first connecting plate 31 and the second connecting plate 32, and forming a triangle between the reinforcing steel bar and the first connecting plate 31 and the second connecting plate 32, thereby increasing the stability between the first connecting plate 31 and the second connecting plate 32.

[0039] In the embodiment, the maximum height of the large wing iron 3 is 110 cm, and a 50 mm thick steel plate is welded to the outer wall of the cone pipe.

[0040] In the embodiment, the maximum height of the small wing iron 4 is 80 cm, and a 62 mm thick steel plate is welded to the outer wall of the cone pipe.

[0041] As a further description of the above embodiment, two groups of wing guards 5 are connected between any two adjacent large wing irons 3 and small wing irons 4, and a circular structure is formed between the plurality of wing guards 5. One group of wing guards 5 is connected to the middle part of the large wing iron 3 and the small wing iron 4, and the other group of wing guards 5 is connected to the outer wall of the large wing iron 3 and the small wing iron 4.

[0042] In use, the wing guard 5 is a plurality of steel plates welded between the adjacent large wing iron 3 and small wing iron 4. The one group of wing guards 5 welded to the middle part of the large wing iron 3 and the small wing iron 4 can increase the stability of the large wing iron 3 and the small wing iron 4, and prevent the large wing iron 3 and the small wing iron 4 from breaking during use. The one group of wing guards 5 welded to the outer wall of the large wing iron 3 and the small wing iron 4 can form a whole of the large wing iron 3 and the small wing iron 4, expand the cross-sectional area of the drill bit, ensure the slot thickness, and ensure the engineering quality.

[0043] In the embodiment, the wing guard 5 is a steel plate with a thickness of 3 cm and a width of 13 cm welded to the wing iron piece to form a circular structure.

[0044] As a further description of the above embodiment, the outer wall of the wing guard 5 connected to the outer wall of the large wing iron 3 and the small wing iron 4 is also welded with a plurality of drill bit wear-resistant blocks 6. The outer side of the bottom of the large wing iron 3 and the small wing iron 4 is also welded with the drill bit wear-resistant block 6.

[0045] In use, the setting of the drill bit wear-resistant block 6 can increase the wear resistance of the drill bit, increase the effective use time of the drill bit, and improve the efficiency.

[0046] Therefore, the utility model discloses effectively overcome the various shortcomings in the prior art and have high industrial utilization value.

[0047] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A trenching bit for complex strata of super-thick impervious wall, comprising a spinal canal (2), characterized in that: The vertebra canal (2) top is fixedly connected with a lifting structure (1), the lifting structure (1) is connected with a percussion drill wire rope (7), the vertebra canal (2) lower end outer wall is fixedly connected with a plurality of evenly arranged large fin iron (3) along the circumferential direction of the vertebra canal (2), the middle part of any two adjacent large fin iron (3) is provided with a small fin iron (4), and the vertebra canal (2) bottom is welded with a plurality of evenly distributed drill bit wear blocks (6) along the circumferential direction thereof.

2. The trenching bit for complex strata of ultra-thick impervious wall according to claim 1, characterized in that: The vertebra canal (2) lower part is thickened to form a horn shape.

3. The trenching bit for ultra-thick impervious wall complex strata according to claim 1, characterized in that: The lifting structure (1) comprises a plurality of connection blocks (11) evenly distributed along the circumferential direction of the vertebra canal (2), one end of the connection block (11) is welded with the outer wall of the vertebra canal (2), the other end of the connection block (11) is internally provided with a connecting column (12) welded with the inner wall of the connection block (11), the connecting column (12) is internally provided with a rotatable connecting assembly, and the end of the connecting assembly is connected with the percussion drill wire rope (7).

4. The trenching bit for complex strata of ultra-thick impervious wall according to claim 3, characterized in that: The connecting block (11) comprises a first connecting part (111), a second connecting part (112) and a third connecting part (113) integrally formed, the first connecting part (111) is welded with the outer wall of the vertebra canal (2), the connecting column (12) is welded with the inner wall of the third connecting part (113), and the diameters of the connection blocks (11) between the plurality of connection blocks (11) are sequentially reduced from the first connecting part (111) to the second connecting part (112) to the third connecting part (113).

5. The trenching bit for ultra-thick impervious wall complex strata according to claim 3, characterized in that: The connecting assembly comprises a connecting rod (13), the connecting rod (13) is rotatably connected in the connecting column (12), one end of the connecting rod (13) is fixedly connected with a limiting block (14) after extending out of the connecting column (12), the other end of the connecting rod (13) is fixedly connected with two positioning blocks (15) after extending out of the connecting column (12), and the two positioning blocks (15) are symmetrically welded with the outer wall of the connecting rod (13).

6. The trenching bit for ultra-thick diaphragm walls in complex ground formations according to claim 5, characterized in that: The ends of the two positioning blocks (15) are symmetrically provided with connecting holes (151) after extending out of the connecting rod (13), the two connecting holes (151) are provided with a pin lock (16), and the percussion drill wire rope (7) is connected with the lifting structure (1) through the pin lock (16).

7. The trenching bit for ultra-thick impervious wall complex strata of claim 1, wherein: The large fin iron (3) and the small fin iron (4) each comprise a first connecting plate (31) and a second connecting plate (32) connected with each other, one side of the first connecting plate (31) is welded with the outer wall of the vertebra canal (2), and the width of the other side of the first connecting plate (31) is sequentially increased from top to bottom.

8. The trenching bit for ultra-thick impervious wall complex strata of claim 1, wherein: Two groups of wing guards (5) are connected between any two adjacent large fin irons (3) and small fin irons (4), and a circular structure is formed between the plurality of wing guards (5).

9. The trenching bit for super thick diaphragm wall complex strata according to claim 8, characterized in that: One group of the wing guards (5) is connected to the middle part of the large fin iron (3) and the small fin iron (4), and the other group of the wing guards (5) is connected to the outer wall of the large fin iron (3) and the small fin iron (4), and the outer wall of the wing guard (5) connected to the outer wall of the large fin iron (3) and the small fin iron (4) is also welded with a plurality of drill bit wear blocks (6).

10. The trenching bit for ultra-thick impervious wall complex strata of claim 1, wherein: The outer side of the bottom of the large fin iron (3) and the small fin iron (4) is also welded with a drill bit wear block (6).

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