CN214145349U

CN214145349U - Rotary drilling bit for rod hole

Info

Publication number: CN214145349U
Application number: CN202022600320.4U
Authority: CN
Inventors: 姚蕾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-09-07
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a rod hole rotary drilling bit, the drilling component comprises a rotary shell, a rotary driver with one end fixedly connected with the top center of the rotary shell, a ball bearing arranged at the inner top end of the rotary shell, a connecting column with one end connected with the ball bearing, a drill rod with the top end fixedly connected with the other end of the connecting column, a rotary gear with the outer wall movably connected with the upper outer wall of the drill rod, a middle shaft rod with one end vertically penetrating through the center of the rotary gear, a fixed shell with the inner side wall fixedly connected with the other end of the middle shaft rod, and a limiting ring with the outer wall fixedly connected with the outer wall of one end of the middle shaft rod, the rotary shell can rotate relative to the middle shaft rod, the inner wall of the rotary shell is provided with a first insection, the outer wall of the drill rod is provided with a second insection, the rotary gear can rotate relative to the middle shaft rod, the utility model has the functions of cooling and resistance reduction of the drill bit when in work, while making the output torque of the drill greater than the output torque of the drive.

Description

Rotary drilling bit for rod hole

Technical Field

The utility model relates to a dig drill bit technical field soon, specifically be a drill bit is dug soon to pole hole.

Background

The drill bit is an integral part of the drilling apparatus and its main function is to break rock and form the borehole. The rotary drill bit is a drill bit commonly used in the petroleum industry at present, and can rotate under the drive of machinery, so that the whole drill bit is driven to perform centripetal motion, and rocks are cracked and broken through cutting and grinding, so that the effect of drilling downwards is achieved.

When the rotary drilling rig works, a drill bit can be subjected to stronger resistance and generate a large amount of heat in the drilling process, so that cooling and resistance reduction are needed during drilling; how to increase the output torque of the driving device to the drill bit is also a basic appeal for the skilled person.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a drill bit is dug soon to rod hole has can cool down and fall the function that hinders the drill bit of digging the rig soon at the during operation, makes the output torque ratio drive arrangement's of drill bit big simultaneously output torque.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a rod hole rotary drilling bit, comprising:

the digging and drilling component comprises a rotary shell, a rotary driver, a ball bearing, a connecting column, a drill rod, a rotary gear, a middle shaft rod, a fixed shell and a limiting ring, wherein one end of the rotary driver is fixedly connected with the center of the top end of the rotary shell, the ball bearing is arranged at the top end of the inner part of the rotary shell, one end of the connecting column is connected with the ball bearing, the top end of the drill rod is fixedly connected with the other end of the connecting column, the outer wall of the rotary gear is movably connected with the outer wall of the upper end of the drill rod, one end of the middle shaft rod vertically penetrates through the center of the rotary gear, the inner side wall of the rotary shell is fixedly connected with the other end of the middle shaft rod, the outer wall of the rotary shell is fixedly connected with the outer wall of one end of the middle shaft rod, the rotary shell can rotate relative to the middle shaft rod, first insections are arranged on the inner wall of the rotary shell, second insections are arranged on the outer wall of the drill rod, and the rotary gear can rotate relative to the middle shaft rod;

the water pipe vertically penetrates through the top end of the fixed shell, and one end of the water pipe penetrates through the rotary driver, the rotary shell, the ball bearing, the connecting column and the drill rod respectively and extends into the drill rod;

and the cone is arranged at the output end of the drill rod.

As a preferred scheme of drill bit is dug soon to pole hole, wherein, just be located on the reference column rotatory gear's top and bottom are equipped with the stopper respectively, the reference column with rotatory gear's quantity is 4.

As a preferred scheme of drill bit is dug soon to pole hole, wherein, the diameter of drill rod adds two the diameter of rotary gear equals the diameter of drum shell.

As a preferred scheme of drill bit is dug soon to pole hole, wherein, the other end and the water pump of water service pipe are connected.

As a preferred scheme of drill bit is dug soon to pole hole, wherein, first insection with the second insection all with the mutual interlock of rotating gear.

As a preferred scheme of drill bit is dug soon to pole hole, wherein, ball bearing's outer curved terminal surface with the inside top fixed connection of drum shell, ball bearing's interior curved terminal surface with the one end fixed connection of spliced pole.

Compared with the prior art, the utility model discloses the beneficial effect who has is: when the rotary drilling rig is used specifically, the drill bit is integrally fixed on the rotary drilling rig through the fixed shell, an oil pump (not marked in the attached drawing) of the rotary drilling rig drives the rotary driver to rotate, the rotary driver drives the cylinder shell to rotate, the cylinder shell drives the 4 rotary gears to rotate relative to the 4 middle shaft rods, meanwhile, the 4 rotary gears drive the drill rod to rotate, the arranged limiting ring is used for limiting the drill rod, the cylinder shell with a large diameter drives the drill rod with a small diameter to rotatably drill, the output torque of the drill bit is larger than that of the driving device, the other end of the water pipe is connected with the water pump, water is extracted into the drill rod through the water pipe to be cooled and resistance reduced, the roller cone carries out rock breaking work through cutting teeth carried by the roller cone, so that the speed of the drilling rig is increased, the rotary drilling rig has the functions of cooling and resistance reduction of the drill bit during the rotary drilling rig, while making the output torque of the drill greater than the output torque of the drive.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a front sectional view of the whole structure of a rotary drilling bit for rod holes of the present invention;

fig. 2 is a schematic structural view of the first insection and the second insection in fig. 1 of the rod hole rotary drilling bit of the present invention;

fig. 3 is the utility model discloses a rod hole digs ball bearing's in fig. 1 of drill bit structure sketch map soon.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a drill bit is dug soon to pole hole has and can cool down and fall the function that hinders the drill bit of digging the rig soon at the during operation, makes the output torque ratio drive arrangement's of drill bit output torque big simultaneously.

Fig. 1 to 3 are schematic structural views illustrating an embodiment of a rod hole rotary drilling bit according to the present invention, please refer to fig. 1 to 3, the rod hole rotary drilling bit according to the present embodiment includes a drilling component 100, a water pipe 200 and a cone 300.

The digging and drilling component 100 is used for rotary digging and drilling, specifically, the digging and drilling component 100 comprises a rotary housing 110, a rotary driver 120 with one end fixedly connected with the top end center of the rotary housing 110, a ball bearing 130 arranged at the inner top end of the rotary housing 110, a connecting column 140 with one end connected with the ball bearing 130, a drill rod 150 with the top end fixedly connected with the other end of the connecting column 140, a rotary gear 180 with the outer wall movably connected with the outer wall of the upper end of the drill rod 150, a middle shaft rod 170 with one end vertically penetrating through the center of the rotary gear 180, a fixed housing 160 with the inner side wall fixedly connected with the other end of the middle shaft rod 170, a limiting ring 190 with the outer wall fixedly connected with the outer wall of one end of the middle shaft rod 170, the rotary housing 110 can rotate relative to the middle shaft rod 170, the inner wall of the rotary housing 110 is provided with a first insection 110a, the outer wall of the drill rod 150 is provided with a second insection 150a, the rotary gear 180 can rotate relative to the middle shaft 170, during the specific use, fix the drill bit whole on the rotary drilling rig through fixed shell 160, the oil pump (not marked in the drawing) of rotary drilling rig drives rotary driver 120 and rotates, rotary driver 120 will drive drum shell 110 and rotate, drum shell 110 will drive 4 rotary gear 180 and rotate for 4 well axostylus axostyles 170, 4 rotary gear 180 will drive drilling rod 150 simultaneously and rotate, in this embodiment, first insection 110a and second insection 150a all interlock with rotary gear 180 each other. The spacing collar 190 that sets up is used for carrying out limiting displacement to drilling rod 150, and in this embodiment, ball bearing 130's outer curved terminal surface and the inside top fixed connection of rotatory shell 110, ball bearing 130's inner curved terminal surface and the one end fixed connection of spliced pole 140 drive the rotatory brill that digs of drilling rod 150 that the diameter is little through the big drum shell 110 of diameter, make the output torque ratio drive arrangement's of drill bit output torque big.

The water service pipe 200 is used for cooling and reducing the resistance of the drill bit, specifically, the water service pipe 200 vertically penetrates through and is fixed on the top end of the fixed shell 160, one end of the water service pipe respectively penetrates through the rotary driver 120, the rotary shell 110, the ball bearing 130, the connecting column 140 and the drill rod 150 and extends to the inside of the drill rod 150, and when the drill rod is used specifically, the other end of the water service pipe 200 is connected with a water pump, so that water is pumped to the inside of the drill rod 150 through the water service pipe 200 to be cooled and reduced the resistance.

The roller cone 300 is used for increasing the speed of the drilling machine, specifically, the roller cone 300 is arranged at the output end of the drill rod 150, when the drilling machine is used specifically, the drill rod 150 drives the roller cone 300 to carry out rotary drilling, and the roller cone 300 carries out rock breaking work through cutting teeth carried by the roller cone 300, so that the speed of the drilling machine is increased.

With reference to fig. 1-3, in the rod hole rotary drilling bit of the present embodiment, when in specific use, the whole bit is fixed on the rotary drilling rig through the fixed housing 160, an oil pump (not labeled in the drawings) of the rotary drilling rig drives the rotary driver 120 to rotate, the rotary driver 120 drives the cylinder housing 110 to rotate, the cylinder housing 110 drives the 4 rotary gears 180 to rotate relative to the 4 middle shaft rods 170, meanwhile, the 4 rotary gears 180 drive the drill rod 150 to rotate, the set limiting ring 190 is used for limiting the drill rod 150, the cylinder housing 110 with a large diameter drives the drill rod 150 with a small diameter to rotate to drill, so that the output torque of the bit is larger than the output torque of the driving device, the other end of the water pipe 200 is connected with a water pump, water is pumped into the drill rod 150 through the water pipe 200 to cool and reduce resistance, and the roller cone 300 performs rock breaking work through its own cutting teeth, thereby promote rig speed, the utility model discloses have and to digging the drill bit of rig at the during operation soon and cool down and fall the function that hinders, make the output torque ratio drive arrangement's of drill bit output torque simultaneously big.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a drill bit is dug soon to pole hole which characterized in that includes:

the digging and drilling component (100) comprises a rotating shell (110), a rotating driver (120) with one end fixedly connected with the top end center of the rotating shell (110), a ball bearing (130) arranged at the inner top end of the rotating shell (110), a connecting column (140) with one end connected with the ball bearing (130), a drill rod (150) with the top end fixedly connected with the other end of the connecting column (140), a rotating gear (180) with the outer wall movably connected with the outer wall of the upper end of the drill rod (150), a middle shaft rod (170) with one end vertically penetrating through the center of the rotating gear (180), a fixed shell (160) with the inner side wall fixedly connected with the other end of the middle shaft rod (170), and a limiting ring (190) with the outer wall fixedly connected with the outer wall of one end of the middle shaft rod (170), wherein the rotating shell (110) can rotate relative to the middle shaft rod (170), the inner wall of the rotating shell (110) is provided with a first insection (110a), the outer wall of the drill rod (150) is provided with a second insection (150a), and the rotating gear (180) can rotate relative to the middle shaft rod (170);

a water pipe (200) vertically penetrating and fixed at the top end of the fixed housing (160), and one end of the water pipe penetrates through the rotary driver (120), the rotary housing (110), the ball bearing (130), the connecting column (140) and the drill rod (150) respectively and extends to the inside of the drill rod (150);

a roller cone (300) disposed at an output end of the drill rod (150).

2. The rod hole rotary drilling bit according to claim 1, wherein the number of the middle shaft rod (170) and the number of the rotary gears (180) are 4, and the middle shaft rod (170) is positioned on the top end of the rotary gear (180) and the bottom end of the rotary gear (180) is provided with a limiting block respectively.

3. A rod hole rotary drill bit according to claim 1, characterized in that the diameter of the drill rod (150) plus the diameter of the two rotary gears (180) is equal to the diameter of the rotary housing (110).

4. The rotary drill bit for rod holes as claimed in claim 1, wherein the other end of the water pipe (200) is connected with a water pump.

5. The rod hole rotary drill bit according to claim 1, wherein the first insection (110a) and the second insection (150a) are engaged with the rotary gear (180).

6. The rod hole rotary drilling bit according to claim 1, wherein an outer curved end face of the ball bearing (130) is fixedly connected with the inner top end of the rotary shell (110), and an inner curved end face of the ball bearing (130) is fixedly connected with one end of the connecting column (140).