CN115788281A

CN115788281A - Bind impacter and down-the-hole drill

Info

Publication number: CN115788281A
Application number: CN202211412599.0A
Authority: CN
Inventors: 杨日平; 朱自佳; 杨湘龙
Original assignee: Changsha Heijingang Industrial Co Ltd
Current assignee: Changsha Heijingang Industrial Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-14

Abstract

The application discloses bind impacter and hidden hole drilling tool includes: the device comprises a barrel, a first air passage is arranged in the barrel, and a drill rod joint and a plug are respectively arranged at two ends of the barrel; the hammer comprises an impact hammer, wherein a joint of the impact hammer is connected with a barrel through a first connecting block, an air hole communicated with a high-pressure air passage in the impact hammer is formed in the side face of the joint, a second air passage communicated with the first air passage and the air hole is formed in the first connecting block, a clamping sleeve of the impact hammer is connected with the barrel through the second connecting block, and the number of the impact hammers is at least two and is arranged around the barrel in a circumferential uniform interval mode. The application provides a bind impacter and dive hole drilling tool compares in prior art for in the reaming of through-hole, can reduce intensity of labour, improve the efficiency of construction, operate safelyr.

Description

Binding impactor and down-the-hole drill

Technical Field

The application relates to the technical field of raise excavation mechanical equipment, in particular to a binding impactor and a down-the-hole drill.

Background

The down-the-hole drill is a construction engineering device for piling holes, is suitable for engineering blast hole drilling operations such as metallurgy, coal, building materials, stone materials, railways, hydropower construction, national defense construction, earthwork and the like, has the characteristics of high drilling efficiency, wide application range and the like compared with common rock drills, and is a rock drilling device which is generally used at present.

In the construction of hydraulic and hydroelectric engineering, a gate well is generally built at a water inlet of a diversion tunnel, a surge shaft is built at a water outlet, the gate well and the surge shaft can be collectively called as a vertical shaft, and the construction of the hydraulic tunnel excavation engineering during shaft excavation blasting excavation is a technical and safety difficult point.

Therefore, a binding impactor and a down-the-hole drill are needed, and are used for reaming through holes, so that the labor intensity can be reduced, the construction efficiency can be improved, and the operation is safer.

Disclosure of Invention

In order to solve the technical problem, the application provides a bind impacter and down-the-hole drill for in the reaming of through-hole, can reduce intensity of labour, improve the efficiency of construction, operate safelyr.

The technical scheme provided by the application is as follows:

a binding impactor comprising:

the device comprises a barrel, a first air passage is arranged in the barrel, and a drill rod joint and a plug are respectively arranged at two ends of the barrel;

the connector of the impact hammer is connected with the barrel through a first connecting block, an air hole communicated with a high-pressure air passage in the impact hammer is formed in the side face of the connector, a second air passage communicated with the first air passage and the air hole is formed in the first connecting block, and the clamping sleeve of the impact hammer is connected with the barrel through a second connecting block;

the hammer is provided with two at least, encircles the even interval setting of circumference of barrel.

Preferably, the plug is detachably connected with the barrel, and the drill rod connector is detachably connected with the barrel through taper threads.

Preferably, the second connecting block is provided with a mounting opening for the hammer to pass through, and the mounting opening is matched with the clamping sleeve;

the first connecting block is provided with a mounting groove matched with the joint of the hammer, one end, away from the second connecting block, of the mounting groove is provided with a mounting hole, and the pull rod penetrates through the mounting hole to be connected with the joint, so that the limiting step on the clamping sleeve is abutted to the second connecting block.

Preferably, the method further comprises the following steps:

the first slag discharge port is arranged on the first connecting block, and at least one first slag discharge port is arranged between the adjacent mounting grooves;

and the second slag discharge port is arranged on the second connecting block and corresponds to the first slag discharge port.

Preferably, the mounting groove is a tapered groove, a forming surface adapted to the mounting groove is arranged on the joint, and the aperture of the mounting groove gradually decreases towards a direction away from the second connecting block.

Preferably, the mounting port is a hexagonal mounting port, and a hexagonal joint adapted to the mounting port is arranged on the snap-fit sleeve.

Preferably, the method further comprises the following steps:

the fixing frame is fixedly sleeved on the outer side of the cylinder body;

the fixed frame is provided with a first holding cambered surface matched with the outer surface of the hammer;

the clamping block is provided with a second clamping cambered surface matched with the first clamping cambered surface for use;

and the holding block is fixed on a locking piece on the fixing frame.

Preferably, one end of the cylinder body, which is close to the second connecting block, is provided with a guide post, and one end of the guide post, which is far away from the cylinder body, is provided with a conical mounting joint.

Preferably, the method further comprises the following steps:

the guide ribs are arranged on the guide columns, at least two groups of guide ribs are arranged, and the guide ribs are uniformly arranged at intervals around the circumferential direction of the guide columns;

the alloy teeth are arranged on one side, far away from the guide post, of the guide rib at intervals;

and the slag discharge channel is arranged between the adjacent guide ribs.

A down-the-hole drill comprising the binding impactor of any one of the above.

The binding impactor provided by the invention is provided with the barrel, the impacting hammer and the slag discharge port, wherein the barrel is internally provided with the first air passage, the two ends of the barrel are provided with the drill rod joint and the plug, one end of the drill rod joint, which is far away from the barrel, is connected with the drill rod, the drill rod is connected with the power head, and the drill rod and the binding impactor are driven to rotate by the power head and move along the axis direction at the same time. Secondly, an impact hammer is also arranged, a joint of the impact hammer is connected with the cylinder body through a first connecting block, an air hole is arranged on the side surface of the joint and is communicated with a high-pressure air passage in the impact hammer, a second air passage communicated with the first air passage and the air hole is arranged in the first connecting block, a clamping sleeve of the impact hammer is connected with the cylinder body through a second connecting block, the second air passage is arranged in the first connecting block, the air hole is arranged on the side surface of the joint of the impact hammer, and after the impact hammer is fixed through the first connecting block and the second connecting block, compressed air in the first air passage enters the high-pressure air passage through the second air passage and the air holes, the compressed air in the high-pressure air passage acts on the piston, the piston transmits pulse acting force to the drill bit of the hammer, and drilling is carried out through pulse impact action, so that the efficiency is higher. Therefore, compared with the prior art, the binding impactor disclosed by the embodiment of the invention is used for reaming the through hole, so that the labor intensity can be reduced, the construction efficiency is improved, and the operation is safer.

The invention also provides a down-the-hole drill which comprises the binding impactor and can reduce the labor intensity, improve the construction efficiency and be safer to operate when being used for reaming the through hole.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a first structural schematic diagram (reaming from bottom to top) of a binding impactor provided in an embodiment of the invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a second schematic structural diagram of a binding impactor according to an embodiment of the invention (with hole expansion from top to bottom);

fig. 5 is a cross-sectional view of fig. 4.

Reference numerals: 1. a barrel; 2. a first air passage; 3. a drill pipe joint; 4. a plug; 5. a hammer; 6. a first connection block; 7. a second connecting block; 51. a joint; 52. a high pressure air passage; 53. air holes; 54. a second air passage; 55. nesting the cards; 56. a limiting step; 57. a hexagonal joint; 58. a drill bit; 61. mounting grooves; 62. mounting holes; 63. a pull rod; 64. a first slag discharge port; 71. an installation port; 72. a second slag discharge port; 81. a fixed mount; 82. a first hugging arc surface; 83. a clasping block; 84. a second hugging arc surface; 85. a locking member; 91. a guide post; 92. a guide rib; 93. alloy teeth; 94. a slag discharge channel.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings are only used for matching the disclosure of the present disclosure to be understood and read by those skilled in the art, and are not used to limit the practical limitations of the present disclosure, so that the modifications of the structures, the changes of the ratio relationships, or the adjustments of the sizes, should not be within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure.

The embodiments of the present invention are written in a progressive manner.

As shown in fig. 1 to 5, an embodiment of the present invention provides a binding impactor, including: the device comprises a barrel 1, wherein a first air passage 2 is arranged in the barrel 1, and a drill rod joint 3 and a plug 4 are respectively arranged at two ends of the barrel 1; strike sub-hammer 5, it links to each other through first connecting block 6 between joint 51 and the barrel 1 of strike sub-hammer 5, the side of joint 51 is provided with the gas pocket 53 with the high-pressure air flue 52 intercommunication in the strike sub-hammer 5, be provided with the second air flue 54 of the first air flue 2 of intercommunication and gas pocket 53 in the first connecting block 6, it links to each other through second connecting block 7 between inlay card cover 55 and the barrel 1 of strike sub-hammer 5, strike sub-hammer 5 and be provided with two at least, the even interval setting of circumference around barrel 1.

In the prior art, the through hole is usually reamed from bottom to top, or is constructed by excavating from top to bottom and lifting manual mucking by a winch, and the methods have the disadvantages of high construction labor intensity, slow progress and difficulty in ensuring the safety of operators.

The binding impactor provided by the invention is characterized in that a barrel body 1, an impacting hammer 5 and a slag discharge port are arranged, wherein a first air channel 2 is arranged in the barrel body 1, a drill rod connector 3 and a plug 4 are arranged at two ends of the barrel body 1, one end, far away from the barrel body 1, of the drill rod connector 3 is connected with a drill rod, the drill rod is connected with a power head, and the drill rod and the binding impactor are driven to rotate by the power head and move along the axial direction at the same time. Secondly, the hammer 5 is also arranged, a joint 51 of the hammer 5 is connected with the cylinder 1 through a first connecting block 6, an air hole 53 is arranged on the side surface of the joint 51, the air hole 53 is communicated with a high-pressure air channel 52 in the hammer 5, a second air channel 54 communicated with the first air channel 2 and the air hole 53 is arranged in the first connecting block 6, a clamping sleeve 55 of the hammer 5 is connected with the cylinder 1 through a second connecting block 7, the second air channel 54 is arranged in the first connecting block 6, the air hole 53 is arranged on the side surface of the joint 51 of the hammer 5, after the hammer 5 is fixed through the first connecting block 6 and the second connecting block 7, compressed air in the first air passage 2 enters the high-pressure air passage 52 through the second air passage 54 and the air holes 53, the compressed air in the high-pressure air passage 52 acts on the piston, the piston transmits pulse acting force to the drill bit of the hammer 5, and drilling is performed through pulse impact action, so that the efficiency is higher. Therefore, compared with the prior art, the binding impactor disclosed by the embodiment of the invention is used for reaming the through hole, so that the labor intensity can be reduced, the construction efficiency is improved, and the operation is safer.

In the above structure, in order to ensure the compressed air in the high-pressure air passage 52, as one embodiment, at least 3 air holes are provided in the embodiment of the present invention, and are uniformly spaced around the circumference of the joint, an inward-concave annular groove is provided on the outer circumferential surface of the joint in the embodiment of the present invention, the air inlets of the air holes are provided in the annular groove, a high-pressure air outlet is provided on the working surface of the drill bit in the embodiment of the present invention, the compressed air in the first air passage enters the annular groove on the joint through the second air passage, and the compressed air entering the high-pressure air passage in the high-pressure air passage of the hammer through the air holes is discharged through the high-pressure air outlet on the drill bit.

As an implementation manner of the first embodiment, the binding impactor in the embodiment of the invention further includes a first slag discharge port 64 and a second slag discharge port 72, wherein the first slag discharge port 64 is disposed on the first connecting block 6, at least one first slag discharge port 64 is disposed between two adjacent hammer hammers 5, the second slag discharge port 72 is disposed on the second connecting block 7, and the second slag discharge port 72 is disposed corresponding to the first slag discharge port 64. The mode of carrying out the reaming to the through-hole has two kinds, as one of them reaming mode, when the rig can ream the hole need follow the upper end of through-hole towards the lower extreme of through-hole when reaming, end cap 4 sets up the one end that is close to the drill bit of percussion hammer 5 at barrel 1, and drill rod joint 3 sets up the one end of keeping away from percussion hammer 5 at barrel 1, and drill rod joint 3 links to each other with drilling rod and unit head, and the drill bit of impacter is binded in the drive reams downwards, and residue during the reaming can directly discharge in the through-hole. As another implementation reaming mode, when need follow the lower extreme of through-hole during reaming towards the upper end, drill rod joint 3 locates the one end that barrel 1 is close to the drill bit of impact sub-hammer 5, end cap 4 sets up the one end of keeping away from the drill bit at barrel 1, the unit head passes through the drilling rod and links to each other with barrel 1, drive impact sub-hammer 5 and carry out the reaming from down upwards, owing to be provided with first row of cinder notch 64 and second row of cinder notch 72, under the effect of gravity, the residue drops to first row of cinder notch 64 department from second row of cinder notch 72, so, arrange the sediment and be used for dropping from the lower extreme of through-hole, it is more convenient to arrange the processing of sediment, use manpower and material resources sparingly.

In the above structure, one end of the cylinder 1 in the embodiment of the present invention is connected to the drill rod joint 3, the drill rod joint 3 is connected to the air compressor for inputting compressed air into the first air passage 2 of the cylinder 1, and the end of the cylinder 1 away from the drill rod joint 3 is provided with the choke plug 4, so that the compressed air in the first air passage 2 can enter the high pressure air passage 52 of the hammer 5 through the second air passage 54 and the air hole 53. As one of the implementation manners, in the embodiment of the present invention, the plug 4 and the barrel 1, and the tool joint 3 and the barrel 1 are detachably connected through tapered threads, so that when a through hole needs to be reamed, a mode of reaming from top to bottom or reaming from bottom to top can be selected based on an environment where the through hole needs to be reamed, which is more convenient.

In the above structure, as one of the embodiments, the first connecting block 6 in the embodiment of the present invention is provided with the mounting opening 71 through which the outer cylinder of the hammer 5 passes, the mounting opening 71 is adapted to the insert 55 of the hammer, the first connecting block 6 is provided with the mounting groove 61 adapted to the joint 51 of the hammer 5, one end of the mounting groove 61 away from the second connecting block 7 is provided with the mounting hole 62, and the pull rod 63 passes through the mounting hole 62 to connect to the joint 51, so that the limit step 56 on the insert abuts against the second connecting block 7. The pull rod 63 and the limit step 56 are used for limiting and restricting the axial displacement of the hammer 5.

In the above structure, as one of the implementation manners, the first connecting block and the barrel in the embodiment of the present invention are integrally formed, and the second connecting block and the barrel in the embodiment of the present invention are integrally formed. Furthermore, in order to strengthen the connection between the first connecting block and the cylinder, first reinforcing ribs are arranged between the first connecting block and the cylinder in the embodiment of the invention, and at least three groups of the first reinforcing ribs are arranged and evenly spaced around the circumference of the cylinder. In the embodiment of the invention, the second reinforcing ribs are arranged between the second connecting block and the cylinder body, at least three groups of the second reinforcing ribs are arranged, and the second reinforcing ribs are uniformly arranged around the circumference of the cylinder body at intervals.

In the above structure, as a more preferable embodiment, the mounting groove 61 in the embodiment of the present invention is specifically a tapered groove, the joint 51 of the hammer 5 is provided with a forming surface adapted to the mounting groove 61, the diameter of the mounting groove 61 is gradually reduced in a direction away from the second connecting block 7, the joint 51 is inserted into the mounting groove 61 by providing the mounting groove 61 with a tapered shape, and the mounting groove 61 is adapted to the shape of the outer surface of the joint 51, and the compressed gas in the second air passage 54 enters the hammer 5 through the air hole 53 to avoid the occurrence of air leakage.

In the above structure, the mounting opening 71 in the embodiment of the present invention is specifically a hexagonal mounting opening, the outer surface of the snap-fit sleeve 55 of the hammer 5 is provided with the hexagonal joint 57 with a shape adapted to the mounting opening 71, the snap-fit hexagonal joint 57 is mounted in the mounting opening 71, and the pull rod 63 causes the limit step 56 to abut against the second connecting block 7, so as to limit and restrict the degree of freedom of the hammer 5 in rotating around the axial direction thereof.

In the above structure, as a more specific implementation manner, the pull rod 63 in the embodiment of the present invention is specifically a locking bolt, and the locking bolt passes through the mounting hole 62 on the first connecting block 6 to be connected with the joint 51.

In the above structure, in order to further fix the hammer 5 and prevent the hammer 5 from swinging during the reaming process, as an implementation manner, the binding impactor in the embodiment of the present invention further includes a fixing frame 81, a first clasping arc 82, a clasping block 83, and a locking member 85, wherein the fixing frame 81 is sleeved on the outer side of the barrel 1, the fixing frame 81 is fixedly connected to the barrel 1, the fixing frame 81 is provided with the first clasping arc 82 adapted to the outer surface of the hammer 5, the fixing block is provided with a second clasping arc 84 used in cooperation with the first clasping arc 82, and the locking member 85 is used for fixing the clasping block 83 and the fixing frame 81, so that the hammer 5 is fixed between the first clasping arc 82 and the second clasping arc 84.

Furthermore, the locking member 85 in the embodiment of the present invention includes a first threaded hole disposed on the fixing frame 81, a second threaded hole disposed on the clasping block 83 and used in cooperation with the first threaded hole, a screw rod passing through the first threaded hole and the second threaded hole, and two ends of the screw rod being fixed by a locking nut.

In the above structure, as a more preferable embodiment, the locking pieces 85 in the embodiment of the present invention are provided in at least two sets, and the locking pieces 85 are provided at intervals in the axial direction of the hammer 5.

Furthermore, as one embodiment, the fixing frame 81 and the second connecting block 7 in the embodiment of the present invention are integrally formed.

Further, as one embodiment, the fixing frame 81 in the embodiment of the present invention is provided with an avoiding portion, wherein the avoiding portion is disposed between the first slag discharge opening 64 and the second slag discharge opening 72, and the slag discharge is smoother by the avoiding portion.

In the above structure, in order to make slag discharge smoother, as one embodiment, the first slag discharge port 64 and the second slag discharge port 72 in the embodiment of the present invention are located on the same axis.

In the above structure, in order to ensure the straightness of reaming, as one of the implementation manners, the binding impactor in the embodiment of the present invention further includes a guide post 91, the guide post 91 is disposed at one end of the cylinder 1 close to the second connection block 7, and the guide post 91 is disposed, so that it is ensured that the binding impactor does not deviate in the reaming direction. Based on the reaming manner, the end of the guide post 91 away from the cylinder 1 in the embodiment of the present invention is provided with a conical installation joint, and the conical installation joint may be connected with the plug 4 or the drill rod joint 3.

In order to further increase the guiding accuracy, the guiding columns 91 in the embodiment of the present invention are provided with at least two sets of guiding ribs 92, and the guiding ribs 92 are uniformly spaced around the circumference of the guiding columns 91. In order to prevent the guide ribs 92 from being worn in the guiding process and further prolong the service life of the guide ribs 92, alloy teeth 93 are arranged on one side, away from the guide columns 91, of the guide ribs 92 in the embodiment of the invention at intervals, the wear resistance of the guide ribs 92 is improved by arranging the alloy teeth 93, and a slag discharge channel 94 is arranged between the adjacent guide ribs 92, so that slag discharge is facilitated.

In the above structure, as one embodiment, the alloy tooth 93 in the embodiment of the present invention is made of cemented carbide, and has higher wear resistance.

In the above structure, as one of the embodiments, the guide rib 92 in the embodiment of the present invention is specifically in a straight shape, or the guide rib 92 in the embodiment of the present invention is specifically in a spiral shape.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A binding impactor, comprising:

the device comprises a barrel (1), wherein a first air channel (2) is arranged in the barrel (1), and a drill rod joint (3) and a plug (4) are respectively arranged at two ends of the barrel (1);

the impact hammer (5), a joint (51) of the impact hammer (5) is connected with the cylinder body (1) through a first connecting block (6), an air hole (53) communicated with a high-pressure air channel (52) in the impact hammer (5) is formed in the side face of the joint (51), a second air channel (54) communicated with the first air channel (2) and the air hole (53) is formed in the first connecting block (6), and a clamping sleeve (55) of the impact hammer (5) is connected with the cylinder body (1) through a second connecting block (7);

the number of the hammer hammers (5) is at least two, and the hammer hammers surround the cylinder body (1) and are uniformly arranged at intervals in the circumferential direction.

2. The binding impactor of claim 1,

the drill rod joint is characterized in that the plug (4) is detachably connected with the cylinder body (1), and the drill rod joint (3) is detachably connected with the cylinder body (1) through taper threads.

3. The binding impactor of claim 1,

the second connecting block (7) is provided with a mounting opening (71) for the hammer (5) to pass through, and the mounting opening (71) is matched with the clamping nest (55);

be equipped with on first connecting block (6) with mounting groove (61) that connect (51) adaptation, mounting groove (61) are kept away from the one end of second connecting block (7) is provided with mounting hole (62), pull rod (63) pass mounting hole (62) with connect (51) and link to each other, so that spacing step (56) on the card nest (55) and second connecting block (7) butt.

4. The binding impactor of claim 3,

further comprising:

the first slag discharge port (64) is arranged on the first connecting block (6), and at least one first slag discharge port (64) is arranged between the adjacent mounting grooves (61);

and the second slag discharge port (72) is arranged on the second connecting block (7) and corresponds to the first slag discharge port (64).

5. The binding impactor of claim 3,

mounting groove (61) specifically are the bell jar, be provided with on joint (51) with the shaping surface of mounting groove (61) adaptation, the aperture of mounting groove (61) is towards keeping away from the direction of second connecting block (7) reduces gradually.

6. The binding impactor of claim 5,

the mounting port (71) is specifically a hexagonal mounting port, and a hexagonal joint (57) matched with the mounting port (71) is arranged on the clamping nest (55).

7. The binding impactor of claim 6,

further comprising:

a fixing frame (81) fixedly sleeved on the outer side of the cylinder body (1);

a first holding cambered surface (82) matched with the outer surface of the hammer (5) is arranged on the fixing frame (81);

the clasping block (83) is provided with a second clasping cambered surface (84) matched with the first clasping cambered surface (82) for use;

and a locking piece (85) for fixing the clasping block (83) on the fixing frame (81).

8. The binding impactor of any one of claims 1 to 7,

the cylinder body (1) is close to one end of the second connecting block (7) is provided with a guide post (91), and one end, away from the cylinder body (1), of the guide post (91) is provided with a conical mounting joint.

9. The binding impactor of claim 8,

further comprising:

the guide ribs (92) are arranged on the guide columns (91), at least two groups of guide ribs (92) are arranged, and the guide ribs (92) are uniformly arranged at intervals around the circumferential direction of the guide columns (91);

alloy teeth (93) arranged on one side of the guide rib (92) far away from the guide column (91) at intervals;

and a slag discharge channel (94) arranged between the adjacent guide ribs (92).

10. A down-the-hole drill comprising the binding impactor of any one of claims 1-9.