CN219774081U

CN219774081U - Mining tunneling drill bit capable of preventing dust from flying

Info

Publication number: CN219774081U
Application number: CN202321246822.9U
Authority: CN
Inventors: 徐奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-29
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a mining tunneling drill bit for preventing dust from flying, which comprises the following components: the drill bit body is rotatably arranged on the mounting block through a threaded mounting shaft, and a spiral blade is arranged on the outer side of the drill bit body and used for carrying out tunneling operation along with the rotation of the drill bit body; the dustproof collection mechanism is arranged on the mounting block and used for preventing dust and collecting dust in the tunneling process when the drill bit body is tunneling, the driving mechanism is rotated, and the rotating end of the driving mechanism is fixed on the threaded mounting shaft and used for driving the threaded mounting shaft and the drill bit body to synchronously rotate. The utility model can avoid the phenomenon of flying dust during excavation, and can improve the excavation efficiency and the excavation quality of the drill bit, and compared with the prior art, the utility model can not only well avoid the phenomenon of on-site dust diffusion, but also can play a role in collecting and sampling the soil of the excavated layer in real time.

Description

Mining tunneling drill bit capable of preventing dust from flying

Technical Field

The utility model relates to the technical field of heading machine drills, in particular to a mining heading drill capable of preventing dust from flying.

Background

Coal is a common living resource and is an important resource for improving living conditions, tunneling equipment is needed when the coal is detected and drilled, a tunneling machine is a mining machine for utilizing a tunneling drill bit to drill a hole, and the tunneling drill bit can be used for crushing a harder rock structure in the coal mine, so that coal mining can be smoothly carried out.

In order to improve the safety of the drill bit during tunneling and improve the overall quality of the drill bit, the Chinese patent application number 202123294661.4 discloses a stable and safe coal mine tunneling drill bit, and solves the problem that a user cannot know in time when a cutter head on the drill bit is damaged, and normal tunneling work is affected. However, the patent has the defects that when the underground coal mine is drilled down, as in the traditional drilling bit, the drilling space of the drilling bit is not communicated with the rear space of the drilling bit, so that the speed is low in actual drilling and exploitation, a large amount of dust is generated in the process of drilling and exploitation, and stones in exploitation splash along with the rotation of the drilling bit, so that the surrounding personnel are damaged.

Therefore, the utility model provides a mining tunneling drill bit for preventing dust from flying so as to solve the technical problems.

Disclosure of Invention

The utility model mainly aims to provide the mining tunneling drill capable of improving the tunneling efficiency and the tunneling quality of the drill and preventing dust from flying.

In order to achieve the above object, the present utility model provides a mining tunnelling drill bit for preventing dust from flying, comprising:

the drill bit body is rotatably arranged on the mounting block through a threaded mounting shaft, and a spiral blade is arranged on the outer side of the drill bit body and used for carrying out tunneling operation along with the rotation of the drill bit body;

the dustproof collecting mechanism is arranged on the mounting block and is used for preventing dust and collecting dust in the tunneling process when the drill bit body is tunneling;

and the rotating end of the rotating driving mechanism is fixed on the threaded mounting shaft and is used for driving the threaded mounting shaft and the drill bit main body which are connected to synchronously rotate.

Further, the dust collection mechanism includes an outer sleeve located outside the bit body, the outer sleeve being disposed on the mounting block by a retraction mechanism.

Further, the contraction mechanism comprises a sliding annular groove arranged in the mounting block, a sliding ring block arranged on the outer sleeve and a plurality of first springs arranged in the sliding annular groove, and the sliding ring block is arranged in the sliding annular groove in a sliding manner and is in contact with the first springs.

Further, the dustproof collection mechanism further comprises a dust collection cavity arranged in the installation block, one side of the dust collection cavity is communicated with the space inside the outer sleeve through a plurality of first vent holes, and the other side of the dust collection cavity is communicated with the space outside the outer sleeve through a plurality of second vent holes.

Further, a protection sleeve is fixed in the middle of the dust collection cavity and is used for protecting the threaded installation shaft which is attached to the inner side in a rotating mode.

Further, the drill bit further comprises a switch indicating mechanism, wherein the switch indicating mechanism is located on the contact surface of the mounting block and the drill bit body and can sense whether the drill bit body is mounted on the mounting block normally or not.

Further, the switch indicating mechanism comprises an indicating lamp arranged on the mounting block, an extrusion ring groove arranged on the drill bit main body and a plurality of mounting shaft brackets arranged in the extrusion ring groove, wherein one end of each mounting shaft bracket is fixedly provided with a mounting plate, and the mounting plate is provided with a pressing switch electrically connected with the indicating lamp.

Further, a second spring with two ends respectively abutted to the mounting plate and the mounting block is sleeved on the mounting shaft frame, the other end of the mounting shaft frame penetrates through the mounting block to be provided with a limiting sliding block, and the mounting block is provided with a limiting sliding groove for the sliding of the limiting sliding block.

Further, the threaded mounting shaft is provided with a limiting ring block which is clamped in the mounting block and used for limiting rotation of the threaded mounting shaft.

Further, a positioning ring block is fixed on the mounting block, a positioning annular groove is formed in the drill bit main body, and the positioning ring block slides in the positioning annular groove and can rotate relative to the positioning annular groove.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the baffle is arranged, so that the phenomenon of dust flying during tunneling can be avoided, the inner space and the outer space of the outer sleeve can be communicated by utilizing the through in the collecting cavity, labor is saved during tunneling by the drill bit, the tunneling efficiency and the tunneling quality of the drill bit can be improved compared with the traditional drill bit due to the fact that the tunneling space is sealed, the effect of avoiding on-site dust diffusion can be well achieved, and the real-time collection and sampling effects of tunneling mineral seam soil can be achieved.

2. According to the utility model, the push switch is extruded in the jack by the aid of the inserted link and the spring, and the push switch is matched with the electric connection of the push switch and the indicator lamp, so that when the threaded installation shaft for driving the drill bit to rotate is used for a long time and is worn and broken, indication and early warning can be carried out, the impact of damage to the whole tunneling quality and tunneling efficiency of the drill bit due to tunneling can be prevented, the installation condition of the drill bit on the threaded installation shaft during the drilling can be monitored in real time, and other connection damage conditions caused by the abrasion of threads on the threaded installation shaft can be avoided.

Drawings

FIG. 1 is an overall perspective view of a dust fly-away prevention mining tunnelling bit according to the present utility model;

FIG. 2 is a perspective cross-sectional view of a mining tunnelling drill bit for preventing dust fly according to the utility model;

FIG. 3 is a schematic cross-sectional view of a mining tunnelling drill bit for preventing dust fly according to the utility model;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

fig. 6 is an enlarged view at C in fig. 3.

Reference numerals illustrate:

1. a bit body; 2. a helical blade; 3. a dust-proof collection mechanism; 31. an outer sleeve; 32. a retraction mechanism; 321. a sliding annular groove; 322. a sliding ring block; 323. a first spring; 33. a first vent hole; 34. a second vent hole; 35. a dust collection cavity; 36. a protective sleeve; 4. a threaded mounting shaft; 5. a limiting ring block; 6. a switch indication mechanism; 61. an indicator light; 62. limiting sliding grooves; 63. a limit sliding block; 64. installing a shaft bracket; 65. a mounting plate; 66. pressing the switch; 67. a second spring; 68. extruding the ring groove; 7. positioning the annular groove; 8. positioning ring blocks; 9. a mounting block; 10. and a rotation driving mechanism.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, in the embodiment of the present utility model, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the examples, see fig. 1 to 6 in detail.

As shown in fig. 1 to 3, the present utility model provides a mining tunnelling drill bit for preventing dust from flying, comprising:

the drill bit comprises a drill bit body 1, wherein the drill bit body 1 is rotatably arranged on a mounting block 9 through a threaded mounting shaft 4, and a spiral blade 2 is arranged on the outer side of the drill bit body 1 and used for carrying out tunneling operation along with the rotation of the drill bit body 1;

a dust-proof collecting mechanism 3 provided on the mounting block 9 for dust-proof and collecting dust during the tunneling of the bit body 1;

the switch indication mechanism 6 is located on the contact surface between the mounting block 9 and the bit body 1, and can sense whether the bit body 1 is mounted on the mounting block 9 normally.

The rotation driving mechanism 10 has a rotation end fixed to the screw mounting shaft 4 for driving the screw mounting shaft 4 and the bit body 1 connected to each other to rotate synchronously.

In specific implementation, the rotation driving mechanism 10 controls the rotation of the threaded installation shaft 4 fixed on the driving shaft, because the threaded installation shaft 4 is limited to rotate on the installation block 9, and the threaded installation shaft 4 is screwed on the drill bit body 1 through the external thread at one end, the installation condition of the drill bit body 1 on the installation block 9 can be sensed by the practical switch indicating mechanism 6 in the installation process of the drill bit body 1, when the drill bit body 1 is installed on the threaded installation shaft 4, the threaded installation shaft 4 is driven to rotate in the same direction again, the drill bit body 1 can be driven to rotate, the driving operation of the drill bit body 1 can be carried out by matching with the helical blade 2 on the outer side of the drill bit body 1, therefore, the installation and rotation of the drill bit body 1 can be controlled by using the rotation driving mechanism 10, and in the process of driving the drill bit body 1, the dust collecting mechanism 3 arranged on the installation block 9 can be well prevented from spreading on site.

It should be noted that, the rotation driving mechanism 10 in the present utility model may adopt various driving motors to perform rotation control as shown in fig. 1, or may adopt other disclosed prior art to perform driving rotation control of the screw mounting shaft 4, and the screw blade 2 disposed outside the drill body 1 may also be replaced by a multi-pick structure or a multi-blade structure that is common in the field, and meanwhile, the drill body 1 in the present utility model may be various drill structures in the same field.

As shown in fig. 2, 3 and 4, the dust-proof collecting mechanism 3 includes an outer sleeve 31 located outside the drill bit body 1, the outer sleeve 31 is disposed on the mounting block 9 through a shrinking mechanism 32, and during the tunneling process of the drill bit body 1, the shrinking mechanism 32 can play a role in facilitating elastic shrinkage of the outer sleeve 31 when the outer sleeve 31 contacts with hard foreign matters to be stressed and contradicted.

Wherein, the contraction mechanism 32 includes a sliding ring groove 321 arranged in the mounting block 9, a sliding ring block 322 arranged on the outer sleeve 31 and a plurality of first springs 323 arranged in the sliding ring groove 321, the sliding ring block 322 is arranged in the sliding ring groove 321 in a sliding manner and is contacted with the first springs 323, and the first springs 323 are used for ensuring that the first springs 323 can contact and influence the stress of the outer sleeve 31 to elastically expand and contract in the sliding ring groove 321.

In specific implementation, because the sliding ring block 322 is limited to slide in the sliding ring groove 321, under normal conditions, the sliding ring block 322 is affected by the elasticity of the first spring 323, and can be contacted and extruded to drive the outer sleeve 31 to be positioned at the outer side of the drill bit main body 1 all the time, and when the outer sleeve 31 is contacted with hard foreign matters to be stressed and contradicted, the outer sleeve 31 is stressed along with the tunneling movement of the drill bit main body 1, and the outer sleeve 31 can be contacted and extruded to complete shrinkage treatment in the sliding ring groove 321, so that the normal tunneling of the drill bit main body 1 is ensured.

Meanwhile, the dustproof collection mechanism 3 further comprises a dust collection cavity 35 arranged inside the installation block 9, the dust collection cavity 35 is mainly used for collecting and storing dust in the excavation of the drill bit main body 1, the real-time collection and sampling effect of the soil of the excavated seam can be achieved, one side of the dust collection cavity 35 is communicated with the inner side space of the outer sleeve 31 through a plurality of first vent holes 33, the other side of the dust collection cavity 35 is communicated with the outer side space of the outer sleeve 31 through a plurality of second vent holes 34, the dust in the dust collection cavity 35 is conveniently and rapidly discharged, the inner space and the outer space of the outer sleeve 31 are communicated, the inner air and the outer air of the outer sleeve 31 are guaranteed to circulate, the drill bit is convenient to save labor in excavation, the excavation is difficult due to the fact that the excavation space is sealed when the traditional drill bit is used for excavation, and the drill bit excavation efficiency and the excavation quality can be improved.

Wherein, collection dirt cavity 35 middle part is fixed with protection sleeve 36, and protection sleeve 36 sets up the laminating outside screw thread installation axle 4, because collection dirt cavity 35 is inside when collecting the storage, and partial dust can cause certain wearing and tearing influence to exposing outside screw thread installation axle 4 in collection dirt cavity 35, consequently set up protection sleeve 36 and can be used for protecting the laminating rotation screw thread installation axle 4 inboard.

In concrete implementation, when the bit body 1 rotates to carry out tunneling operation, utilize the setting of outer sleeve 31, can play the spacing effect of shelves protection to the dust of excavation, the effect of avoiding on-the-spot dust diffusion can be fine play, the dust of gathering moves along with the tunneling of bit body 1, the setting of cooperation helical blade 2, can enter into dust collection cavity 35 inside through first air vent 33 and collect the storage, the dust of storage can conveniently take out through second air vent 34 along with the tunneling of bit body 1, and then be convenient for play the real-time collection sampling effect of tunneling mineral layer soil, simultaneously the setting of first air vent 33, second air vent 34 and dust collection cavity 35 can communicate the inside and outside space of outer sleeve 31, can reduce the comparatively sealed difficult excavation phenomenon that leads to in tunneling space, the whole tunneling efficiency and the tunneling quality of bit body 1 are improved.

As shown in fig. 2, 3 and 6, the switch indication mechanism 6 comprises an indication lamp 61 arranged on the installation block 9, a pressing ring groove 68 arranged on the drill bit body 1 and a plurality of installation shaft brackets 64 arranged in the pressing ring groove 68, one end of each installation shaft bracket 64 is fixedly provided with an installation plate 65, the installation plate 65 is provided with a pressing switch 66 electrically connected with the indication lamp 61, when the pressing switch 66 is pressed in the pressing ring groove 68, the inner wall of the pressing ring groove 68 can be contacted and pressed when the drill bit body 1 moves, and then the indication lamp 61 is controlled to emit light in an induction manner, so that whether the drill bit body 1 is installed on the threaded installation shaft 4 can be judged by whether the indication lamp 61 emits light in an induction manner when the drill bit is installed.

As shown in fig. 2, 3 and 5, a second spring 67 with two ends respectively abutting against the mounting plate 65 and the mounting block 9 is sleeved on the mounting shaft bracket 64, a limit slide block 63 is arranged at the other end of the mounting shaft bracket 64 penetrating through the mounting block 9, and a limit slide groove 62 for sliding the limit slide block 63 is arranged on the mounting block 9

In specific implementation, before the installation of bit body 1, the elasticity effect is applyed to mounting panel 65 to second spring 67, mounting panel 65 is through the installation pedestal 64 drive spacing slider 63 is located spacing spout 62 one end all the time, and press switch 66 button is in non-pressing state, pilot lamp 61 is not moved and is luminous this moment, indicate that bit body 1 and screw thread installation axle 4 are not connected this moment, in the installation of bit body 1, because screw thread installation axle 4 rotation can drive bit body 1 and be close to the installation on installation piece 9, at this moment, the extrusion annular 68 inner wall of bit body 1 gradually is close to press switch 66, after press switch 66 and extrusion annular 68 inner wall contact, along with the installation removal of bit body 1, cooperation spacing slider 63, installation pedestal 64 and mounting panel 65's are fixed, can drive spacing slider 63 and move towards the other end in spacing spout 62 inboard, after bit body 1 installs the completion, press switch 66 button is pressed by the annular inner wall, and then drive pilot lamp 61 is luminous, indicate that current bit body 1 and screw thread installation axle 4 are connected well, if pilot lamp 61 is luminous not, then indicate current bit body 1 and screw thread installation axle 4 is connected, utilize pilot lamp 61 and judge whether luminous axle 4 is connected, the screw thread installation axle 4 is connected and the time-consuming time is damaged when the screw thread installation is cut off, the condition is avoided and the bit is damaged when the bit is connected, the whole is damaged, the bit is prevented from the bit is connected, the bit is damaged and the bit is connected, the bit is connected and the bit is driven and the bit is connected, the bit is in the bit, the bit is connected and the bit, the bit is has the bit, and the bit is has and the bit.

It should be noted that, although the indication lamp 61 does not emit light in the present utility model, the result of the abnormality in the connection state of the bit body 1 and the screw mounting shaft 4 may be obtained, but the indication lamp 61 does not emit light in actual use may also be caused by other abnormalities, so that the indication lamp 61 does not emit light, which cannot be used as an absolute standard for the abnormality in the connection state of the bit body 1 and the screw mounting shaft 4, but can be used as one of the criteria for judging the abnormality in the connection state of the bit body 1 and the screw mounting shaft 4.

As shown in fig. 2 and 3, the threaded mounting shaft 4 is provided with a stop collar block 5 which is clamped in the mounting block 9 and is used for limiting the rotation of the threaded mounting shaft 4.

The positioning ring block 8 is fixed on the mounting block 9, the positioning annular groove 7 is formed in the drill bit body 1, the positioning ring block 8 slides in the positioning annular groove 7 and can rotate relative to the positioning annular groove 7, and when the drill bit body 1 is mounted, the positioning ring block 8 can be aligned in the positioning annular groove 7 to help rapidly limit the drill bit body 1.

It should be noted that, since the mounting shaft bracket 64 and the mounting plate 65 in the switch indication mechanism 6 of the present utility model are not completely attached to the inner wall of the extrusion ring groove 68, the mounting shaft bracket 64 and the mounting plate 65 in the switch indication mechanism 6 of the present utility model cannot achieve a good positioning and aligning effect, and the positioning ring groove 7 and the positioning ring block 8 in the present utility model can be replaced by other existing disclosed positioning structures, and the positioning ring groove 7 and the positioning ring block 8 for positioning in the present utility model can be replaced by other equivalent mechanical structures.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A mining tunnelling drill bit for preventing dust fly-up, comprising:

the drill bit comprises a drill bit body (1), wherein the drill bit body (1) is rotatably arranged on a mounting block (9) through a threaded mounting shaft (4), and a spiral blade (2) is arranged on the outer side of the drill bit body (1) and used for carrying out tunneling operation along with the rotation of the drill bit body (1);

the dustproof collecting mechanism (3) is arranged on the mounting block (9) and is used for preventing dust and collecting dust in the tunneling process when the drill bit main body (1) is tunneling;

and the rotating end of the rotating driving mechanism (10) is fixed on the threaded mounting shaft (4) and is used for driving the connected threaded mounting shaft (4) and the drill bit main body (1) to synchronously rotate.

2. A mining tunnelling drill bit as claimed in claim 1 wherein the dust collection means (3) comprises an outer sleeve (31) located outside the bit body (1), the outer sleeve (31) being arranged on the mounting block (9) by a retraction means (32).

3. A mining tunnelling drill bit as claimed in claim 2 wherein the retraction mechanism (32) comprises a sliding annular groove (321) provided in the mounting block (9), a sliding ring block (322) provided on the outer sleeve (31) and a plurality of first springs (323) provided in the sliding annular groove (321), the sliding ring block (322) being slidably provided in the sliding annular groove (321) and in contact with the first springs (323).

4. A mining tunnelling drill bit for preventing dust from flying according to claim 2, wherein the dust collecting mechanism (3) further comprises a dust collecting cavity (35) formed in the mounting block (9), one side of the dust collecting cavity (35) is communicated with the space inside the outer sleeve (31) through a plurality of first ventilation holes (33), and the other side of the dust collecting cavity (35) is communicated with the space outside the outer sleeve (31) through a plurality of second ventilation holes (34).

5. A mining tunnelling drill bit for preventing dust from flying as claimed in claim 4, wherein a protective sleeve (36) is fixed in the middle of the dust collection cavity (35), the protective sleeve (36) being used to protect the threaded mounting shaft (4) which rotates on the inner side.

6. A mining tunnelling drill bit as claimed in claim 1, further comprising a switch indication mechanism (6), the switch indication mechanism (6) being located at the contact surface of the mounting block (9) and the bit body (1) and being capable of sensing whether the bit body (1) is mounted normally on the mounting block (9).

7. The mining tunneling drill bit for preventing dust flying according to claim 6, characterized in that the switch indicating mechanism (6) comprises an indicating lamp (61) arranged on the mounting block (9), a pressing ring groove (68) arranged on the drill bit main body (1) and a plurality of mounting shaft brackets (64) arranged in the pressing ring groove (68), one end of each mounting shaft bracket (64) is fixedly provided with a mounting plate (65), and the mounting plate (65) is provided with a pressing switch (66) electrically connected with the indicating lamp (61).

8. The mining tunneling drill bit for preventing dust from flying according to claim 7, characterized in that a second spring (67) with two ends respectively abutting against a mounting plate (65) and a mounting block (9) is sleeved on the mounting shaft bracket (64), a limit sliding block (63) is arranged at the other end of the mounting shaft bracket (64) penetrating through the mounting block (9), and a limit sliding groove (62) for sliding the limit sliding block (63) is arranged on the mounting block (9).

9. A mining tunnelling drill bit for preventing dust from flying as claimed in claim 1, wherein the threaded mounting shaft (4) is provided with a stop collar block (5) which is clamped in the mounting block (9) for rotation stop of the threaded mounting shaft (4).

10. A mining tunnelling drill bit for preventing dust from flying according to claim 1, wherein a positioning ring block (8) is fixed on the mounting block (9), a positioning annular groove (7) is formed in the drill bit main body (1), and the positioning ring block (8) slides in the positioning annular groove (7) and can rotate relative to the positioning annular groove (7).