CN219654633U - Drill bit and drill jumbo for mine - Google Patents

Abstract

The utility model relates to a drill bit and a drilling trolley for mines, which comprises the following components: the drill bit comprises a conical first base body, a conical second base body and a drill bit handle which are sequentially connected from front to back, wherein the large end of the first base body is connected with the large end of the second base body, and the small end of the second base body is connected with the drill bit handle; a plurality of forward drilling teeth arranged along the circumference of the first base body for forward drilling, the plurality of forward drilling teeth being perpendicular to the outer surface of the first base body and extending outwardly; and the plurality of back drilling teeth are arranged along the circumference of the second base body and used for drilling backwards, are perpendicular to the outer surface of the second base body and extend outwards. According to the utility model, drilling is realized through the forward drilling teeth arranged on the first substrate and the backward drilling teeth arranged on the second substrate, and when the drill bit cannot be taken out due to the phenomenon of blocking, rock fragments in the hole are crushed and cleaned through the backward drilling teeth so that the drill bit can be taken out.

Description

Drill bit and drill jumbo for mine

Technical Field

The utility model relates to the technical field of tunnel drilling, in particular to a drill bit for mines and a drilling trolley.

Background

Along with the continuous increase of tunnel excavation engineering quantity in the aspect of infrastructure construction of railways, highways, hydropower and the like in China, the effect of the rock drilling trolley for drilling tunnels is also more and more important. Because the tunnel construction operation environment is bad, the hardness of rock is high, the drilling depth is deep, the hardness of rock in different areas is also changed, and the drill bit of the existing drill jumbo is easily influenced by factors such as rock structure, rock cracks or cracks in the drilling process, so that the phenomenon of drilling deflection or uneven drilling occurs in the drilling process; and in the drilling process, the drill bit and the drill bit handle can vibrate, the vibration of the drill bit and the drill bit handle can drive the hole wall of the drilled hole to vibrate, and broken rock falls under the vibration effect and is clamped among the drill bit, the drill bit handle and the hole wall, so that the phenomenon of drilling clamping is caused. The phenomenon of "stuck drill" can make the drill bit unable to take out from the downthehole, lead to drill bit wearing and tearing, the drilling rod is held out, influences the life of rock drill even.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides a drill bit and a drill jumbo for mines, which solve the technical problem that the drill bit cannot be taken out from the hole due to the drill sticking phenomenon occurring in the drilling process of the drill bit.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a drill bit for mines comprising:

the drill bit comprises a conical first base body, a conical second base body and a drill bit handle which are sequentially connected from front to back, wherein the large end of the first base body is connected with the large end of the second base body, and the small end of the second base body is connected with the drill bit handle;

a plurality of forward drilling teeth arranged along a circumference of the first base body for forward drilling, the plurality of forward drilling teeth being perpendicular to an outer surface of the first base body and extending outward;

and the plurality of back drilling teeth are arranged along the circumference of the second base body and used for drilling backwards, are perpendicular to the outer surface of the second base body and extend outwards.

Preferably, the plurality of advancing drill teeth are divided into a plurality of advancing drill tooth groups, the plurality of advancing drill tooth groups are sequentially arranged along the big end to the small end of the first base body, and the advancing drill tooth groups of the same group are arranged on the same circumference of the first base body at intervals;

the plurality of back teeth are divided into at least one set of back teeth, the back teeth of the same set being spaced apart on the same circumference of the second base.

Preferably, a conical connecting matrix is arranged between the first matrix and the second matrix, the small end of the connecting matrix is connected with the large end of the second matrix, and the large end is connected with the large end of the first matrix.

Preferably, the mining drill bit further comprises a plurality of first slag discharging grooves which are arranged at intervals along the circumferential direction of the mining drill bit, wherein the front ends of the first slag discharging grooves extend to the first substrate, and the rear ends of the first slag discharging grooves extend to the second substrate.

Preferably, the drilling tool further comprises a conical third base body coaxial with the first base body, wherein the large end of the third base body is connected with the small end of the first base body, and a plurality of first central drilling teeth are arranged on the third base body along the same circumference.

Preferably, the water treatment device further comprises a water drainage channel penetrating through the first base body and the second base body, wherein the rear end of the water drainage channel can be communicated with a water source;

at least one edge drain hole for flushing rock debris, the at least one edge drain hole being arranged at the junction of the first and third substrates and extending into the first and third substrates and communicating with the drain channel.

Preferably, the first substrate is further provided with at least one second slag discharging groove, the at least one second slag discharging groove corresponds to the at least one edge water discharging hole one by one, the front end of the second slag discharging groove is in smooth communication with the edge water discharging hole, and the rear end of the second slag discharging groove is in smooth communication with the first slag discharging groove.

Preferably, the drilling tool further comprises a conical fourth base body coaxial with the third base body, wherein the large end of the fourth base body is connected with the small end of the third base body, and at least one second central drilling tooth is arranged on the fourth base body.

Preferably, the fourth base body is further provided with a central drain hole for flushing rock fragments, the central drain hole extends into the fourth base body and the third base body and is communicated with the drain channel, and the central drain hole and the second central drill teeth are arranged on the same circumference.

The scheme also provides a drill jumbo for mines, comprising the drill bit for mines according to any one of the schemes;

the rock drilling machine also comprises a rock drilling trolley main body, a supporting arm and a rock drilling machine provided with the drill bit for the mine;

one end of the supporting arm is hinged with the front end of the rock drilling trolley main body, and the other end of the supporting arm is used for supporting the rock drilling machine.

(III) beneficial effects

The beneficial effects of the utility model are as follows:

(1) According to the utility model, drilling is realized through the forward drilling teeth arranged on the first substrate and the backward drilling teeth arranged on the second substrate, and when the drill bit cannot be taken out due to the phenomenon of blocking, rock fragments in the hole are crushed and cleaned through the backward drilling teeth so that the drill bit can be taken out.

(2) According to the utility model, rock fragments generated in the drilling process can be discharged to the rear end of the drill bit through the first slag discharging groove and the second slag discharging groove, so that the drill bit for mines is prevented from being blocked by the rock fragments, fragments and the like, and the drilling of the drill bit for mines is prevented from being influenced.

(3) The present utility model flushes the rock drilling face through the edge and center drainage holes to drain rock chips to the rear end of the drill bit.

(4) The second slag discharging groove is in smooth connection with the edge water discharging hole, so that the slag discharging resistance can be reduced, and broken rock slag can be smoothly discharged.

Drawings

FIG. 1 is a schematic view of the overall structure of a mining drill bit of the present utility model;

FIG. 2 is a schematic view of the overall structure of the mining drill bit of the present utility model;

FIG. 3 is a schematic view of the internal structure of the mining drill bit of the present utility model;

fig. 4 is a schematic structural view of the mine rock-drilling rig of the present utility model.

[ reference numerals description ]

1: a connection base; 2: a drill bit shank; 3: a second center drill tooth; 4: excavating drilling teeth; 5: gauge drilling teeth; 6: backing the drilling teeth; 7: a central drain hole; 8: an edge drain hole; 9: a second slag discharge groove; 10: a first slag discharge groove; 11: a drainage channel; 14: a rock drill; 18: a support arm; 22: a first substrate; 23: a third substrate; 24: a fourth substrate; 25: a first center drill tooth; 26: and a second substrate.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

Example 1

As shown in fig. 1 and 2, a drill bit for mine, comprising: the first conical matrix 22, the second conical matrix 26 and the drill bit handle 2 are sequentially connected from front to back, the large end of the first matrix 22 is connected with the large end of the second matrix 26, and the small end of the second matrix 26 is connected with the drill bit handle 2; a plurality of forward drilling teeth for forward drilling arranged along the circumference of the first base 22, the plurality of forward drilling teeth being perpendicular to the outer surface of the first base 22 and extending outwardly; a plurality of back teeth 6 for rearward drilling are arranged along the circumference of the second base 26, and the plurality of back teeth 6 are arranged perpendicularly to the outer surface of the second base 26 and extend outward. In this embodiment, the taper of the first substrate 22 is 0.06-0.26, and the taper of the second substrate 26 is 0.36-1.

The present utility model provides for drilling through the forward teeth disposed on the first substrate 22 and the rearward teeth 6 disposed on the second substrate 26, and for cleaning rock chips in the hole through the rearward teeth 6 when the bit cannot be removed due to the "stuck" phenomenon, so that the bit can be removed. And through the tapered first and second substrates 22, 26, a guiding action is provided during drilling or backing out to facilitate forward drilling or backing out of the drill bit for mines.

As shown in fig. 1 and 2, further, the plurality of forward drilling teeth are divided into a plurality of forward drilling tooth groups, the plurality of forward drilling tooth groups are sequentially arranged along the large end to the small end of the first base 22, and the forward drilling tooth groups of the same group are arranged on the same circumference of the first base 22 at intervals; the plurality of back teeth 6 are divided into at least one set of back teeth, the back teeth 6 of the same set being spaced apart on the same circumference of the second substrate 26.

In this embodiment, the advancing tooth group includes two groups, is excavation tooth group and is located the gage tooth group that the excavation was bored the tooth group outside respectively, and the excavation is bored the tooth group and is bored tooth group including a plurality of excavation that equipartition was on same circumference and is bored tooth 4, and gage is bored tooth group and is bored tooth group including a plurality of gage that equipartition was on same circumference and is bored tooth 5.

As shown in fig. 1, a tapered connection base 1 is provided between the first base 22 and the second base 26, the small end of the connection base 1 is connected to the small end of the second base 26, and the large end is connected to the large end of the first base 22. In this embodiment, the taper of the connection base 1 is 0.06 to 0.25.

In this embodiment, during the drilling process of the drill bit for mines, the diameter of the hole drilled by the gauge drilling teeth 5 is larger than the maximum diameters of the first matrix 22, the second matrix 26 and the connecting matrix 1, so that the drill bit can perform drilling work.

As shown in fig. 1 and 2, the present embodiment further includes a plurality of first slag discharging grooves 10 arranged at intervals along the circumferential direction of the drill bit for mine, the first slag discharging grooves 10 having front ends extending to the first base 22 and rear ends extending to the second base 26. Rock chips generated during drilling or retreating can be discharged through the first slag notch 10 to prevent the occurrence of a "stuck drill" phenomenon.

As shown in fig. 1 and 2, the device further comprises a conical third base body 23 coaxial with the first base body 22, wherein the large end of the third base body 23 is connected with the small end of the first base body 22, a plurality of first central drilling teeth 25 are arranged on the third base body 23 along the same circumference, and the plurality of first central drilling teeth 25 are uniformly arranged. In this embodiment, the taper of the third base 23 is 0.8 to 1.2.

As shown in fig. 3, the water discharge device further comprises a water discharge channel 11 penetrating through the first base 22 and the second base 26, wherein the rear end of the water discharge channel 11 can be communicated with a water source; at least one edge drain hole 8 for flushing rock chips, the at least one edge drain hole 8 being arranged at the junction of the first base 22 and the third base 23, extending into the first base 22 and the third base 23 and communicating with the drain channel 11.

As shown in fig. 2, the first substrate 22 is further provided with at least one second slag discharging groove 9, at least one second slag discharging groove 9 corresponds to at least one edge water discharging hole 8 one by one, the front end of the second slag discharging groove 9 is in smooth communication with the edge water discharging hole 8, and the rear end of the second slag discharging groove 9 is in smooth communication with the first slag discharging groove 10.

In this embodiment, the second slag discharging groove 9 is smoothly connected with the edge water discharging hole 8 and the first slag discharging groove 10 through curved surfaces, so that slag discharging is smoother, slag discharging resistance is reduced, and broken rock slag can be completely discharged.

As shown in fig. 1 and 2, the drill further comprises a conical fourth matrix 24 coaxial with the third matrix 23, wherein the large end of the fourth matrix 24 is connected with the small end of the third matrix 23, at least one second central drilling tooth 3 is arranged on the fourth matrix 24, and the second central drilling tooth 3 has a certain guiding function on the drill bit for mines, so that drilling deviation and drilling deviation can be avoided. In this embodiment, the taper of the fourth base 24 is 1.7 to 3.7.

As shown in fig. 1 and 3, the fourth base 24 is further provided with a central drain hole 7 for flushing rock fragments, the central drain hole 7 extends into the fourth base 24 and the third base 23 and is communicated with the drain channel 11, and the central drain hole 7 and the second central drill tooth 3 are arranged on the same circumference. When the drill bit for mines drills, the central drain hole 7 is overlapped with the second central drill tooth 3, and water rapidly washes and discharges rock slag broken by the second central drill tooth 3 through the central drain hole 7, so that the rock slag is prevented from wearing the drill bit for mines, and the service life of the drill bit for mines is prolonged.

According to the utility model, through the drilling teeth distributed on different matrixes in multiple rows, the drilling machine can be suitable for various environments with complex textures, and can gradually crush rock during drilling, so that the inner wall of a drilled hole is smooth, and no redundant rock remains.

Example 2

As shown in fig. 4, a drill carriage for mines includes the drill bit for mines according to any one of the above aspects; also included are a drill carriage body, a support arm 18 and a rock drill 14 with a drill bit for mine mounted thereon; one end of the support arm 18 is hinged to the front end of the drill carriage body and the other end is used to support the drill 14.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "upper" a second feature may be the first feature directly above or obliquely above the second feature, or simply indicate that the first feature has a higher level of liquid material than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature has a lower level of liquid material than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (10)

1. A drill bit for mines, comprising:

the drill bit comprises a conical first base body (22), a conical second base body (26) and a drill bit handle (2) which are sequentially connected from front to back, wherein the large end of the first base body (22) is connected with the large end of the second base body (26), and the small end of the second base body (26) is connected with the drill bit handle (2);

a plurality of forward drilling teeth arranged along a circumference of the first base body (22) for forward drilling, the plurality of forward drilling teeth being perpendicular to an outer surface of the first base body (22) and extending outward;

and a plurality of back teeth (6) which are arranged along the circumference of the second base body (26) and used for drilling backwards, wherein the plurality of back teeth (6) are perpendicular to the outer surface of the second base body (26) and extend outwards.

2. The drill bit for mines according to claim 1, characterized in that the plurality of advancing teeth are divided into a plurality of sets of advancing teeth, which are arranged in sequence from the large end to the small end of the first matrix (22), the advancing teeth of a same set being arranged on a same circumference of the first matrix (22) at intervals;

the plurality of back teeth (6) are divided into at least one set of back teeth, the back teeth (6) of the same set being spaced apart on the same circumference of the second base body (26).

3. The drill bit for mines according to claim 2, characterized in that a conical connecting matrix (1) is arranged between the first matrix (22) and the second matrix (26), the small end of the connecting matrix (1) being connected to the large end of the second matrix (26), the large end being connected to the large end of the first matrix (22).

4. The mining drill bit according to claim 1, further comprising a plurality of first slag discharging grooves (10) arranged at intervals along the circumferential direction of the mining drill bit, wherein the first slag discharging grooves (10) extend at front ends to the first base body (22) and at rear ends to the second base body (26).

5. The mining drill bit according to claim 4, characterized in that it further comprises a third base body (23) in the shape of a cone coaxial with the first base body (22), the large end of the third base body (23) being connected to the small end of the first base body (22), and a plurality of first central drilling teeth (25) being arranged on the third base body (23) along the same circumference.

6. The mining drill bit according to claim 5, characterized in that it further comprises a drainage channel (11) penetrating the first and second substrates (22, 26), the rear end of the drainage channel (11) being capable of communicating with a water source;

at least one edge drain hole (8) for flushing rock debris, said at least one edge drain hole (8) being arranged at the junction of said first base body (22) and said third base body (23), extending into said first base body (22) and said third base body (23), and communicating with said drain channel (11).

7. The mining drill bit according to claim 6, characterized in that the first substrate (22) is further provided with at least one second slag discharging groove (9), the at least one second slag discharging groove (9) corresponds to the at least one edge water discharging hole (8) one by one, the front end of the second slag discharging groove (9) is in smooth communication with the edge water discharging hole (8), and the rear end of the second slag discharging groove is in smooth communication with the first slag discharging groove (10).

8. The mining drill bit according to claim 6 or 7, characterized in that it further comprises a conical fourth basic body (24) coaxial with the third basic body (23), the large end of the fourth basic body (24) being connected to the small end of the third basic body (23), at least one second central drilling tooth (3) being mounted on the fourth basic body (24).

9. The mining drill bit according to claim 8, characterized in that the fourth base body (24) is further provided with a central drain hole (7) for flushing rock debris, the central drain hole (7) extending into the fourth base body (24) and the third base body (23) and communicating with the drain channel (11), the central drain hole (7) being arranged on the same circumference as the second central drill tooth (3).

10. A drill carriage for mines, characterized by comprising the drill bit for mines according to any one of claims 1 to 9;

the drill bit also comprises a drill trolley main body, a support arm (18) and a rock drill (14) provided with the drill bit for the mine;

one end of the supporting arm (18) is hinged with the front end of the rock drilling trolley main body, and the other end of the supporting arm is used for supporting the rock drilling machine (14).