CN216767270U - Centrifugal roller-cone mechanical drilling tool for coal mine - Google Patents
Centrifugal roller-cone mechanical drilling tool for coal mine Download PDFInfo
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- CN216767270U CN216767270U CN202122927583.0U CN202122927583U CN216767270U CN 216767270 U CN216767270 U CN 216767270U CN 202122927583 U CN202122927583 U CN 202122927583U CN 216767270 U CN216767270 U CN 216767270U
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Abstract
The utility model discloses a centrifugal roller-cone mechanical drilling tool for a coal mine, and belongs to the field of coal mine mechanical equipment. The utility model provides a centrifugal gear wheel machinery drilling tool for coal mine, including the drilling tool main part, the installation cavity has all been seted up to the both sides of drilling tool main part, the equal fixedly connected with locating lever of one end of two installation cavity insides, the outside of locating lever is rotated and is connected with the rotation connecting piece, the outside of rotation connecting piece is rotated and is connected with and draws the cave wing, and draw cave wing and installation cavity clearance fit, the drilling tool is still including the spacing subassembly of flank angle, be used for spacing the angle of drawing the cave wing, it can realize, form great shearing force and impact force, improve the detritus effect, the power consumption is little, increase its life, effectually avoid drawing cave wing and tooth because overheated and reduce mechanical properties, let the drilling tool can draw the angle of cave wing according to the diameter regulation in different holes, great promotion is from the application scope of drilling tool.
Description
Technical Field
The utility model relates to the field of coal mine mechanical equipment, in particular to a centrifugal roller-cone mechanical drilling tool for a coal mine.
Background
The existing centrifugal roller-cone mechanical drilling tool for coal mines mainly takes the rotating speed of a drilling machine as power, and hole expanding operation can be carried out by accelerating the rotating speed to open hole digging wings at any position of a drilled hole. The main body of the drilling tool is made of alloy steel, the hole digging part is of a two-wing structure, two hole digging wings are replaced according to different stratum conditions or abrasion conditions during use, the main body of the hole digging wings is made of alloy steel, and the rock breaking part is made of a polycrystalline composite sheet or hard alloy;
however, when the drilling tool in the prior art reams holes in the stratum, the rock crushing effect is poor, the power consumption is high, the mechanical property is easily reduced due to overheating, the drilling tool is easily abraded, the service life is short, the size is fixed, and the application range is small.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problems in the prior art, the utility model aims to provide a centrifugal roller mechanical drilling tool for a coal mine, which can realize the purposes of forming larger shearing force and impact force, improving the rock crushing effect, having small power consumption, prolonging the service life of the drilling tool, effectively avoiding the reduction of mechanical properties of hole digging wings and teeth due to overheating, enabling the drilling tool to adjust the angle of the hole digging wings according to the diameters of different holes and greatly improving the application range of the self-drilling tool.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A centrifugal roller mechanical drilling tool for coal mines comprises a drilling tool main body, wherein mounting cavities are formed in two sides of the drilling tool main body, one ends of the inner parts of the two mounting cavities are fixedly connected with positioning rods, the outer sides of the positioning rods are rotatably connected with rotating connecting pieces, hole digging wings are rotatably connected to the outer sides of the rotating connecting pieces, and the hole digging wings are in clearance fit with the mounting cavities;
the drilling tool further comprises a side wing angle limiting assembly used for limiting the angle of the hole digging wing.
Furthermore, a plurality of teeth are fixed on the outer side of the cavity digging wing.
Further, the spacing subassembly of flank angle is including fixing two atress boards and the threaded shaft of fixed connection in drilling tool main part one end of keeping away from one side each other at two rotation connecting pieces respectively, the outside threaded connection of threaded shaft has screw thread drive circle, the threaded shaft is close to the one end of drilling tool main part and is located the outside rotation of threaded shaft and be connected with the sliding ring, just sliding ring and threaded shaft sliding connection, two clamp plates of the equal fixedly connected with in both sides of sliding ring.
Furthermore, a guide groove is formed in the outer side of the threaded shaft, a guide strip is fixedly connected to the inner wall of the sliding ring, and the guide strip is connected to the inner portion of the guide groove in a sliding mode.
Furthermore, a prying ring is fixedly connected to the outer side of the threaded transmission ring.
Furthermore, one end of the drilling tool main body, which is far away from the side wing angle limiting component, is fixedly connected with a connecting threaded ring.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
(1) according to the scheme, the greater shearing force and impact force can be formed through the revolution and the autobiography of the digging hole wings and the teeth, the impact with certain frequency is generated when the rock is pressed into the crushing shearing effect, the rock crushing effect is improved, the torque is small during rotation, and the consumed power is small.
(2) The contact time of the hole digging wings and the tooth with the rock is short, the abrasion of the hole digging wings and the tooth is reduced, the service life of the hole digging wings and the tooth is prolonged, and the mechanical property of the hole digging wings and the tooth is effectively prevented from being reduced due to overheating.
(3) This scheme can be adjusted the angle of drawing the cave wing through setting up the spacing subassembly of flank angle to let the drilling tool can draw the angle of cave wing according to the diameter regulation of different holes, great promotion is from the application scope of drilling tool.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the overall cutaway structure of the present invention;
FIG. 3 is a schematic view of the present invention in partial cutaway configuration;
FIG. 4 is a schematic sectional view of the side wing angle limiting assembly of the present invention.
The reference numbers in the figures illustrate:
1. a drill body; 2. a mounting cavity; 3. positioning a rod; 4. rotating the connecting piece; 5. digging hole wings; 6. teeth; 7. connecting a threaded ring; 8. a flank angle limiting component; 9. a threaded drive ring; 10. a sliding ring; 11. pressing a plate; 12. a stress plate; 13. a threaded shaft; 14. a guide groove; 15. a guide strip; 16. and (5) prying the rod ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1-4, a centrifugal roller mechanical drilling tool for coal mines comprises a drilling tool main body 1, wherein mounting cavities 2 are formed in two sides of the drilling tool main body 1, positioning rods 3 are fixedly connected to one ends inside the two mounting cavities 2, a rotating connecting piece 4 is rotatably connected to the outer side of each positioning rod 3, a hole digging wing 5 is rotatably connected to the outer side of each rotating connecting piece 4, the hole digging wings 5 are in clearance fit with the mounting cavities 2, and the hole digging wings 5 are retracted into the mounting cavities 2 when the drilling tool is not in use;
after the drilling tool main body 1 rotates, a larger centrifugal force is generated, so that the hole digging wings 5 rotate and move out of the installation cavity 2;
rolling bearings can be arranged at the joint of the positioning rod 3 and the rotating connecting piece 4 and the joint of the rotating connecting piece 4 and the hole digging wings 5, so that the friction force at the joint of the positioning rod 3 and the rotating connecting piece 4 and the joint of the rotating connecting piece 4 and the hole digging wings 5 can be reduced, and the rotation torque of the rotating connecting piece can be reduced;
referring to fig. 1-3, in order to enhance the vibration of the hole digging wings 5 and improve the friction between the hole digging wings 5 and the ground, a plurality of teeth 6 are fixed on the outer sides of the hole digging wings 5, the axial load is uniformly distributed on the teeth 6, and a high specific pressure is generated on the contact surface of the teeth 6 and the rock, so that the rock crushing effect is improved;
referring to fig. 1-2 and 4, the drilling tool further comprises a lateral wing angle limiting component 8 for limiting the angle of the hole digging wing 5;
the specific structure of the flank angle limiting assembly 8 is disclosed, the flank angle limiting assembly 8 comprises two stress plates 12 respectively fixed on one side of two rotary connecting pieces 4 which are far away from each other and a threaded shaft 13 fixedly connected to one end of a drilling tool main body 1, the outer side of the threaded shaft 13 is in threaded connection with a threaded transmission ring 9, the threaded shaft 13 is close to one end of the drilling tool main body 1 and is positioned on the outer side of the threaded shaft 13 and is in rotary connection with a sliding ring 10, the sliding ring 10 is in sliding connection with the threaded shaft 13, two sides of the sliding ring 10 are both fixedly connected with two pressing plates 11 for abutting against the stress plates 12 and limiting the angle of the stress plates 12;
here, a guide groove 14 is formed on the outer side of the threaded shaft 13, a guide strip 15 is fixedly connected to the inner wall of the sliding ring 10, and the guide strip 15 is slidably connected to the inside of the guide groove 14;
because the threaded transmission ring 9 is in threaded connection with the threaded shaft 13, the threaded transmission ring 9 can move along the direction of the threaded shaft 13 when rotating, and because the sliding ring 10 is in rotational connection with the threaded transmission ring 9, the sliding ring 10 can only move along the direction of the threaded shaft 13 when being limited by the guide strip 15, the threaded transmission ring 9 can drive the sliding ring 10 to move together when moving, the sliding ring 10 can drive the pressing plates 11 on two sides of the sliding ring to move together when moving, and the rotatable angle of the stress plate 12 can be adjusted when the pressing plates 11 move;
in addition, in order to more conveniently rotate the threaded transmission ring 9, the prying ring 16 is fixedly connected to the outer side of the threaded transmission ring 9, and when the prying ring is used, a prying rod is inserted into the prying ring 16, so that the threaded transmission ring 9 can be rotated in a labor-saving manner;
in addition, referring to fig. 1-2, in order to assemble the drilling tool body 1 and the driving machine, a connecting thread ring 7 is fixedly connected to one end of the drilling tool body 1 away from the flank angle limiting assembly 8.
When in use: when the hole digging device is used, a drilling tool is connected with a driving machine through the connecting threaded ring 7, then a crowbar is inserted into the crowbar ring 16, the crowbar is moved to drive the threaded transmission ring 9 to rotate on the outer side of the threaded shaft 13, because the threaded transmission ring 9 is in threaded connection with the threaded shaft 13, the threaded transmission ring 9 can move along the direction of the threaded shaft 13 when rotating, and because the sliding ring 10 is in rotational connection with the threaded transmission ring 9, the sliding ring 10 can only move along the direction of the threaded shaft 13 when being limited by the guide strip 15, the threaded transmission ring 9 can drive the sliding ring 10 to move together when moving, the sliding ring 10 can drive the pressing plates 11 on two sides of the sliding ring to move together, and the rotatable angle of the stress plate 12 can be adjusted when the pressing plates 11 move, so that the hole digging wings 5 can be adjusted by the rotatable angle;
then inserting a drilling tool into the hole in the stratum, starting a driving machine to drive the drilling tool main body 1 to rotate, generating a larger centrifugal force after the drilling tool main body 1 rotates, enabling the hole digging wings 5 to rotate and move out of the installation cavity 2, forming a larger shearing force when the hole digging wings 5 and the teeth 6 rotate, processing the inner wall of the hole, extruding and crushing rocks on the inner wall of the hole in a larger impact manner, and finishing the hole reaming work of the hole;
in conclusion, the drilling tool can form larger shearing force and impact force through revolution and autonomy of the digging wings 5 and the teeth 6, impact with certain frequency is generated when the rock is pressed into the crushing shearing effect, the rock breaking effect is improved, the torque is small during rotation, the consumed power is small, the contact time between the digging wings 5 and the teeth 6 and the rock is short, abrasion of the digging wings 5 and the teeth 6 is reduced, the service life of the drilling tool is prolonged, mechanical performance reduction caused by overheating of the digging wings 5 and the teeth 6 is effectively avoided, the angle of the digging wings 5 can be adjusted by arranging the side wing angle limiting component 8, the drilling tool can adjust the angle of the digging wings 5 according to the diameters of different holes, and the application range of the drilling tool is greatly improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides a centrifugal roller bit mechanical drilling tool for coal mine, includes drilling tool main part (1), its characterized in that: mounting cavities (2) are formed in two sides of the drilling tool main body (1), one end of each of the two mounting cavities (2) is fixedly connected with a positioning rod (3), the outer side of each positioning rod (3) is rotatably connected with a rotating connecting piece (4), the outer side of each rotating connecting piece (4) is rotatably connected with a hole digging wing (5), and the hole digging wings (5) are in clearance fit with the mounting cavities (2);
the drilling tool further comprises a side wing angle limiting component (8) for limiting the angle of the hole digging wing (5).
2. The centrifugal roller mechanical drilling tool for coal mines according to claim 1, wherein: a plurality of teeth (6) are fixed on the outer side of the hole digging wing (5).
3. The centrifugal roller mechanical drilling tool for coal mines according to claim 1, wherein: the lateral wing angle limiting assembly (8) comprises two stress plates (12) and a threaded shaft (13), wherein the two stress plates (12) and the threaded shaft (13) are fixedly connected to one end of the drilling tool main body (1) and are respectively fixed to one side of two rotary connecting pieces (4), the outer side of the threaded shaft (13) is in threaded connection with a threaded transmission ring (9), one end, close to the drilling tool main body (1), of the threaded shaft (13) is located, the outer side of the threaded shaft (13) is in rotary connection with a sliding ring (10), the sliding ring (10) is in sliding connection with the threaded shaft (13), and two pressing plates (11) are fixedly connected to two sides of the sliding ring (10).
4. The centrifugal roller mechanical drilling tool for coal mines according to claim 3, wherein: a guide groove (14) is formed in the outer side of the threaded shaft (13), a guide strip (15) is fixedly connected to the inner wall of the sliding ring (10), and the guide strip (15) is connected to the inner portion of the guide groove (14) in a sliding mode.
5. The centrifugal roller mechanical drilling tool for coal mines according to claim 3, wherein: and a prying ring (16) is fixedly connected to the outer side of the threaded transmission ring (9).
6. The centrifugal roller mechanical drilling tool for coal mines according to claim 1, wherein: one end, far away from the side wing angle limiting component (8), of the drilling tool main body (1) is fixedly connected with a connecting threaded ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122927583.0U CN216767270U (en) | 2021-11-26 | 2021-11-26 | Centrifugal roller-cone mechanical drilling tool for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122927583.0U CN216767270U (en) | 2021-11-26 | 2021-11-26 | Centrifugal roller-cone mechanical drilling tool for coal mine |
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| Publication Number | Publication Date |
|---|---|
| CN216767270U true CN216767270U (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122927583.0U Active CN216767270U (en) | 2021-11-26 | 2021-11-26 | Centrifugal roller-cone mechanical drilling tool for coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118029881A (en) * | 2024-04-11 | 2024-05-14 | 枣庄矿业集团高庄煤业有限公司 | Hole-expanding type spiral drilling machine for coal mining |
-
2021
- 2021-11-26 CN CN202122927583.0U patent/CN216767270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118029881A (en) * | 2024-04-11 | 2024-05-14 | 枣庄矿业集团高庄煤业有限公司 | Hole-expanding type spiral drilling machine for coal mining |
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