CN210239598U

CN210239598U - Drill bit adjustable device based on coal mine heading machine

Info

Publication number: CN210239598U
Application number: CN201921354174.2U
Authority: CN
Inventors: Zhenxing Zhao; 赵振兴; Chen Gong; 宫臣; Wenlu Zuo; 左文录
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-04-03
Anticipated expiration: 2029-08-20

Abstract

The utility model provides an adjustable device of a drill bit based on a coal mine development machine, which comprises a drill bit, a drill bit mounting block and an adjusting block; the threaded column is movably embedded in the inner side of the threaded positioning sleeve through threads. The setting of brill sword installation piece, be favorable to improving the fastness, when the drilling bore diameter that needs the adjustment brill sword to drill out, loosen the bolt in the screw thread positioning sleeve outside, then it is rotatory around the screw thread post with the screw thread positioning sleeve, at this moment the other end of screw thread post just can reciprocate in the drill bit and drive the regulating block and reciprocate, the swash plate on the projection of in-process outside can slide in the inboard groove of brill sword installation piece, because be equipped with the inclined groove in the brill sword installation piece, and brill sword installation piece is movable mechanism again, so brill sword installation piece can promote the brill sword and slide to inboard or the outside, thereby adjust the drilling bore diameter, be fixed after the regulation of brill sword installation piece of this device, be difficult for during the use rocking, stability improves the assurance normal work and goes on greatly.

Description

Drill bit adjustable device based on coal mine heading machine

Technical Field

The utility model belongs to the technical field of coal mining device, more specifically say, in particular to adjustable device of drill bit based on coal mine entry driving machine.

Background

As is known, China is a large resource country, the national coal mine resources are abundant, the mining industry is developed very prosperous, in the coal mine mining process, drilling equipment is inevitably used, and a drill bit is one of the indispensable structures of the drilling equipment.

For example, patent application No. 201821179820.1 discloses a drill bit for coal mining, and belongs to the technical field of coal mining devices. A drill bit for coal mining comprises a connecting rod and a mounting pipe sleeve, wherein one end of the connecting rod is fixedly connected with a fixed block, the surface of the connecting rod is provided with an external thread layer, the mounting pipe sleeve is connected with the external thread layer of the connecting rod, the mounting sleeve is provided with a first threaded hole which is spirally connected with a fastening bolt, one end of the surface of the mounting pipe sleeve, which is far away from the fastening bolt, is fixedly connected with a drilling grain, the mounting pipe sleeve is also provided with a mounting groove, a sawtooth blade block is arranged inside the mounting groove, an inner thread layer is fixedly connected on the inner wall of one end of the mounting pipe sleeve close to the connecting rod, the inner thread layer is matched with the outer thread layer on the connecting rod, the mounting pipe sleeve is in spiral connection with the connecting rod through the inner thread layer and the outer thread layer, and by means of the design, the problem that drilling holes with different calibers cannot be conveniently drilled in the existing design is solved.

Based on the above search, the above patent combines most adjustable drill bits in the prior art, which have the following problems in use: the cutter head of the existing adjustable drill bit can be adjusted, but the cutter head is supported by a spring, the cutter head is not fixed after adjustment and can still be pulled outwards, and the cutter head is possibly rubbed with the ground to slide when the drill bit rotates, so that deformation is possibly caused to influence normal work.

In view of the above, the present invention provides an adjustable device for a drill bit of a coal mine heading machine, which is developed and improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an adjustable device of drill bit based on coal mine entry driving machine to the tool bit of solving present adjustable drill bit is though can adjust, but the tool bit is through spring-loaded, and the tool bit is not fixed after the adjustment, still can outwards pull out, and tool bit and ground friction when the drill bit is rotatory most probably produce the slip, consequently probably cause the problem that warp and influence normal work.

The utility model discloses adjustable device's purpose and efficiency based on colliery entry driving machine's drill bit is reached by following specific technological means:

an adjustable device of a drill bit based on a coal mine development machine comprises a rotating shaft connecting column, a threaded positioning sleeve, a drill bit mounting block, an adjusting block and a connecting rotating shaft; the top of the rotating shaft connecting column is fixedly provided with a threaded column; the threaded column is movably embedded in the inner side of the threaded positioning sleeve through threads; the top of the threaded positioning sleeve is fixedly connected with the bottom of the drill bit; the top of the threaded column is also movably connected with the bottom of the adjusting block through a connecting rotating shaft, and the adjusting block is positioned on the inner side of the drill bit; six drill bit installation blocks are symmetrically embedded in the outer side of the drill bit, and a drill bit is fixedly installed on the outer side of each drill bit installation block through a screw.

Furthermore, the drill mounting block is movably embedded into a groove on the outer side of the drill, two protrusions are arranged on two sides of the drill mounting block, and a corresponding guide groove is also formed in the groove on the outer side of the drill.

Furthermore, the fixed symmetry in the outside of regulating block is provided with six projections, and the other end of projection all fixedly is provided with an swash plate.

Furthermore, the middle position of the inner side of the drill mounting block is provided with a wide groove, the convex columns on the outer sides of the adjusting blocks are embedded into the wide grooves respectively, the two sides of the wide groove are provided with inclined narrow grooves, and the inclined plates on the convex columns are embedded into the inclined narrow grooves just right.

Furthermore, two protruding plates are fixedly and symmetrically arranged on one side of the drill bit, two corresponding square grooves are formed in the outer side of the drill bit mounting block, and a protrusion on the rear side of the drill bit is embedded into the square groove in the outer side of the drill bit mounting block and fixed through a bolt during mounting.

Compared with the prior art, the utility model discloses following beneficial effect has:

the setting of brill sword installation piece, be favorable to improving the fastness, when the drilling bore diameter that needs the adjustment brill sword to drill out, loosen the bolt in the screw thread positioning sleeve outside, then it is rotatory around the screw thread post with the screw thread positioning sleeve, at this moment the other end of screw thread post just can reciprocate in the drill bit and drive the regulating block and reciprocate, the swash plate on the projection of in-process outside can slide in the inboard groove of brill sword installation piece, because be equipped with the inclined groove in the brill sword installation piece, and brill sword installation piece is movable mechanism again, so brill sword installation piece can promote the brill sword and slide to inboard or the outside, thereby adjust the drilling bore diameter, be fixed after the regulation of brill sword installation piece of this device, be difficult for during the use rocking, stability improves the assurance normal work and goes on greatly.

Drawings

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a schematic diagram of the structure of the shaft side after the drill bit of the present invention is moved outward.

Fig. 3 is the schematic diagram of the partially-cut shaft side structure of the present invention.

Fig. 4 is the axial side structure schematic diagram of the drill bit after sectioning.

Fig. 5 is a schematic diagram of the structure of the adjusting block on the shaft side.

Fig. 6 is a schematic axial side structure diagram of the drill mounting block of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a rotating shaft connecting column; 2. a threaded post; 3. a threaded positioning sleeve; 4. drilling a cutter; 5. a drill bit; 6. a drill mounting block; 7. an adjusting block; 8. is connected with the rotating shaft.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of 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 construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the utility model provides an adjustable device of a drill bit based on a coal mine development machine, which comprises a rotating shaft connecting column 1; the top of the rotating shaft connecting column 1 is fixedly provided with a threaded column 2; the threaded column 2 is movably embedded and installed on the inner side of the threaded positioning sleeve 3 through threads; the top of the thread positioning sleeve 3 is fixedly connected with the bottom of the drill bit 5; the top of the threaded column 2 is also movably connected with the bottom of the adjusting block 7 through a connecting rotating shaft 8, and the adjusting block 7 is positioned on the inner side of the drill bit 5; six drill bit mounting blocks 6 are symmetrically embedded in the outer side of the drill bit 5, and one drill bit 4 is fixedly mounted on the outer side of each drill bit mounting block 6 through a screw.

Wherein, the equal activity of boring cutter installation piece 6 is embedded into the groove in the drill bit 5 outside, and the both sides of boring cutter installation piece 6 all are provided with twice arch, also be provided with the guide slot that corresponds on the groove in the drill bit 5 outside, the swash plate on the projection of regulating block 7 reciprocating process outside can slide in the groove of boring cutter installation piece 6 inboard when the adjustment, because be equipped with the inclined groove in the boring cutter installation piece 6, and boring cutter installation piece 6 is movable mechanism again, so boring cutter installation piece 6 can promote boring cutter 4 and slide to the inboard or outside, thereby adjust the drilling bore diameter, the boring cutter installation piece 6 of this device is fixed after the adjustment, be difficult for rocking during the use, stability improves greatly and guarantees that normal work goes on.

Wherein, the fixed symmetry in the outside of regulating block 7 is provided with six projections, and the other end of projection all fixedly is provided with an swash plate, the swash plate on the projection of regulating block 7 outside in-process reciprocating can slide in the inboard groove of brill sword installation piece 6, because be equipped with the inclined groove in brill sword installation piece 6, and brill sword installation piece 6 is movable mechanism again, so brill sword installation piece 6 can promote the inside side or the outside slip of brill sword 4, thereby the adjustment drilling bore diameter, is fixed after the regulation of the brill sword installation piece 6 of this device, be difficult for rocking during the use, stability improves the assurance normal work greatly and goes on.

Wherein, the inboard intermediate position of boring cutter installation piece 6 still all is provided with a wide groove, and the projection in the regulating block 7 outside imbeds respectively in these wide grooves, the wide groove both sides still are provided with the narrow groove of an slope, and the swash plate on the projection imbeds in these narrow grooves of slope just, the swash plate on the projection of regulating block 7 outside in the reciprocating process can slide in the inboard groove of boring cutter installation piece 6, because be equipped with the inclined groove in the boring cutter installation piece 6, and boring cutter installation piece 6 is movable mechanism again, so boring cutter installation piece 6 can promote boring cutter 4 and slide to the inboard or outside, thereby the regulation drilling bore diameter, boring cutter installation piece 6 of this device is fixed after the adjustment, be difficult for rocking during the use, stability improves greatly and guarantees normal work and goes on.

Wherein, the equal fixed symmetry in one side of boring cutter 4 is provided with two protruding boards, and the outside of boring cutter installation piece 6 also all is provided with two square grooves that correspond, and the protruding embedding of boring cutter 4 rear side is bored the square groove in the 6 outsides of cutter installation piece and is fixed through the bolt during installation, and it is more stable after the installation to bore cutter 4, is difficult to rotate or rock.

The specific use mode and function of the embodiment are as follows:

in the utility model, when the device is used, the rotating shaft connecting column 1 is fixedly welded with the rotating shaft of the drilling device, then the device is driven to rotate to drill the ground, when the drilling caliber drilled by the drill cutter 4 needs to be adjusted, the bolt outside the thread positioning sleeve 3 is loosened, then the thread positioning sleeve 3 rotates around the thread column 2, at the moment, the other end of the thread column 2 can move up and down in the drill bit 5, and the adjusting block 7 can only move up and down and can not rotate due to the reason of connecting the rotating shaft 8, the inclined plate on the convex column outside the adjusting block 7 in the process of moving up and down can slide in the groove inside the drill cutter mounting block 6, because the inclined groove is arranged in the drill cutter mounting block 6, and the drill cutter mounting block 6 is a movable mechanism, the drill cutter mounting block 6 can push the drill cutter 4 or slide to the inner side, thereby adjusting the drilling caliber, the bolt on the thread positioning sleeve 3 can be screwed in again to clamp the thread column 2 after adjustment, and the drill mounting block 6 of the device is fixed after adjustment, is not easy to shake during use, and greatly improves the stability to ensure the normal work.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides an adjustable device of drill bit based on colliery entry driving machine which characterized in that: comprises a rotating shaft connecting column (1), a threaded column (2), a threaded positioning sleeve (3), a drill (4), a drill bit (5), a drill mounting block (6), an adjusting block (7) and a connecting rotating shaft (8); the top of the rotating shaft connecting column (1) is fixedly provided with a threaded column (2); the threaded column (2) is movably embedded and installed on the inner side of the threaded positioning sleeve (3) through threads; the top of the threaded positioning sleeve (3) is fixedly connected with the bottom of the drill bit (5); the top of the threaded column (2) is also movably connected with the bottom of the adjusting block (7) through a connecting rotating shaft (8), and the adjusting block (7) is positioned on the inner side of the drill bit (5); six drill bit installation blocks (6) are symmetrically embedded in the outer side of the drill bit (5), and one drill bit (4) is fixedly installed on the outer side of each drill bit installation block (6) through a screw.

2. An adjustable device based on a coal mine entry driving machine drill bit according to claim 1, characterized in that: the drill bit mounting block (6) is movably embedded into a groove in the outer side of the drill bit (5), two bulges are arranged on two sides of the drill bit mounting block (6), and a corresponding guide groove is also arranged on the groove in the outer side of the drill bit (5).

3. An adjustable device based on a coal mine entry driving machine drill bit according to claim 1, characterized in that: six convex columns are fixedly and symmetrically arranged on the outer side of the adjusting block (7), and an inclined plate is fixedly arranged at the other end of each convex column.

4. An adjustable device based on a coal mine entry driving machine drill bit according to claim 1, characterized in that: the middle position of the inner side of the drill mounting block (6) is also provided with a wide groove, the convex columns on the outer side of the adjusting block (7) are respectively embedded into the wide grooves, the two sides of the wide groove are also provided with an inclined narrow groove, and the inclined plates on the convex columns are just embedded into the inclined narrow grooves.

5. An adjustable device based on a coal mine entry driving machine drill bit according to claim 1, characterized in that: two protruding plates are fixedly and symmetrically arranged on one side of the drill (4), two corresponding square grooves are also formed in the outer side of the drill mounting block (6), and a protrusion on the rear side of the drill (4) is embedded into the square groove in the outer side of the drill mounting block (6) and fixed through a bolt during mounting.