CN110242217B

CN110242217B - Earth drilling bit

Info

Publication number: CN110242217B
Application number: CN201910497880.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Rizhao Yiming Technology Service Co Ltd
Current assignee: Rizhao Jingying Media Technology Co.,Ltd.
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-12-11
Anticipated expiration: 2039-06-10
Also published as: CN110242217A

Abstract

The invention belongs to the technical field of drill bits, and particularly relates to an earth-boring drill bit; comprises a mother drill and a son drill; an annular sliding groove is formed in the main drill, a sliding block is welded at one end of the sub drill, which is welded with the sliding block, extends into the main drill from the end part of the main drill, the sliding block is placed into the annular sliding groove, and the friction force between the sliding block and the annular sliding groove is greater than the gravity force borne by the sub drill; the auxiliary drill and the main drill are matched to improve the use precision of the drill bit; the invention has simple structure, and can improve the precision of digging and punching the soil by mutually matching the main drill and the auxiliary drill.

Description

Earth drilling bit

Technical Field

The invention belongs to the technical field of drill bits, and particularly relates to an earth-boring drill bit.

Background

In order to plant trees in gardens or establish timber pile guardrails and the like, soil excavation and hole punching on the ground are needed, people generally use tools such as a spade shovel and the like to carry out operations such as digging holes and tree planting, and in order to improve the working efficiency and reduce the labor intensity, people successively research and develop some motor-driven tools for carrying out garden operation, so that the mechanization degree of the garden operation is greatly improved, for example, a ground auger which is widely applied to planting and digging pits for seedling landscaping engineering of sloping fields, sand fields and hard lands and is used for digging the periphery of big trees to form soil; burying piles in a fence and digging holes; fruit trees and forest trees are fertilized and dug holes, intertillage, weeding and the like of landscaping engineering, and the diameter of each digging hole is as follows: 200-600 mm, the ground auger operation is not less than 80 pits per hour, work according to a day 8 hours calculate, can dig 640 pits, it is artifical 30 times, intertillage, the width of weeding once is not less than 800 square meters per hour at more than 50 centimetres of operation, realize full automatic operation process really, the ground auger lets people liberate from heavy physical labor, power is powerful, the appearance is pleasing to the eye, the operation is comfortable, low in labor strength, be fit for various topography, efficient, portable and field operation.

The working efficiency of the earth drill depends on the quality of the drill except the power of the earth drill, the existing drill for the earth drill is mainly a single drill, the diameter of a pit of the earth drill is 200-600 mm, the efficiency of digging a hole by only using the single drill is too low, and the diameter of the drill is too large to be beneficial to controlling the precision of the pit, so the problem needs to be solved.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems of low operation efficiency and poor precision of a single drill used by an earth drill in the prior art, the invention provides an earth drill bit.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an earth-boring drill bit, which comprises a main drill and a sub drill; an annular sliding groove is formed in the main drill, a sliding block is welded at one end of the sub drill, which is welded with the sliding block, extends into the main drill from the end part of the main drill, the sliding block is placed into the annular sliding groove, and the friction force between the sliding block and the annular sliding groove is greater than the gravity force borne by the sub drill; the auxiliary drill and the main drill are matched to improve the use precision of the drill bit; when the drill bit is placed on an earth drill for use, an output device in the earth drill drives a main drill to rotate, the main drill rotates and simultaneously drives a sub drill to rotate through the matching of an annular sliding groove and a sliding block, so that when the drill bit works, the sub drill is firstly contacted with the ground, the pressure on the ground is strong because the diameter of the sub drill is smaller than that of the main drill, the efficiency of the drill bit for digging and punching earth can be improved when the sub drill works, meanwhile, the positioning is provided for the main drill, the precision of the digging and punching earth is improved, the range of the digging and punching earth of the drill bit can be improved on the basis of the range of the digging and punching earth of the sub drill when the main drill works, the effective working area of the drill bit is improved, the main drill works on the premise that the sub drill bit has dug and punched earth, a part of electric power of the earth.

Preferably, the top of the annular chute is provided with a cavity, and the width of the cavity is greater than that of the annular chute; the sub drill is connected with the cavity through a spring, and the sliding block starts to move towards the cavity after the sub drill contacts the ground; when the sub drill digs earth and drills holes, along with the increase of the tunneling depth, the pressure given to the sub drill by the ground is larger, the sliding block in the sub drill can move to the cavity, after the sliding block completely moves into the cavity, the sliding block is separated from the annular sliding groove, the sub drill can not rotate along with the main drill, and on one hand, a part of electric power of the ground drill can be saved; on the other hand, make things convenient for the work that mother bored the input excavation and make a hole, and the son bores no longer rotates after mother bored the input work, also can reduce the volume that gets into earth in the annular spout, makes things convenient for the clearance in drill bit later stage.

Preferably, the top of the cavity is symmetrically and fixedly connected with magnetic blocks by taking the spring as a reference, and the magnetic blocks are used for adsorbing the sub-drills entering the cavity; when the sub-drill enters the cavity, the sub-drill is adsorbed by the magnetic block attached to the top of the cavity, and the sub-drill can be prevented from suddenly stretching out under the action of the spring reset force to hurt a user of the ground drill when the drill bit stretches out from the drilled hole after digging and drilling.

Preferably, the mother drill consists of a first mother drill and a second mother drill, one end of the first mother drill, which is close to the second mother drill, is provided with a rectangular groove, one end of the second mother drill, which is close to the first mother drill, is provided with a rectangular groove identical to that of the first mother drill, the rectangular grooves are connected through an I-shaped connecting piece, and the I-shaped connecting piece is rotatably connected with the rectangular grooves; a semicircular pit is formed in one end, close to the second female drill, of the first female drill, a semicircular bulge is fixedly connected to one end, corresponding to the semicircular pit, of the second female drill, and the semicircular bulge and the semicircular pit are matched to improve the impact force of a drill bit; when the mother drill works, the mother drill consists of a mother drill and a second mother drill, a semicircular pit is formed in the first mother drill, a semicircular bulge is fixedly connected to the second mother drill, the mother drill rotates to dig soil and perforate, the semicircular bulge can be displaced in the semicircular pit due to the fact that ground pressure is applied to the mother drill, meanwhile, the I-shaped connecting piece is connected with the first mother drill and the second mother drill, the second mother drill can move up and down, certain impact force is generated on the ground, and therefore the soil digging and perforating efficiency of a drill bit of the drill bit can be further improved.

Preferably, the semicircular bulge is made of rubber materials, the semicircular bulge is of a hollow structure, and an air inlet is formed in the semicircular bulge; an air passage is arranged in the second female drill, one end of the air passage is communicated with the semicircular bulge, and the other end of the air passage is communicated with one end of the second female drill, which is far away from the semicircular bulge; the semicircle form is protruding when semicircle form pit dislocation is removed, and the protruding compression of semicircle form makes the partly gaseous of semicircle form in protruding get rid of from the bottom of No. two female brills through the air flue, can blow off the partial earth of its both sides when No. two female brills during operation to further improve the efficiency that the drill bit digs soil and punches a hole.

Preferably, a layer of cushion pad is arranged in the rectangular groove and used for reducing the friction force between the I-shaped connecting piece and the rectangular groove; the blotter can reduce No. two female brills when reciprocating, the impact force of I shape connecting piece to a female brill and No. two female brills to improve the life of drill bit.

The invention has the following beneficial effects:

1. the earth drilling drill bit is simple in structure, the precision of earth excavation and hole punching can be improved by the mutual matching of the main drill and the auxiliary drill, the earth excavation and hole punching range of the drill bit can be increased on the basis of the earth excavation and hole punching range of the auxiliary drill when the main drill works, the effective working area of the drill bit is increased, the main drill works on the premise that the auxiliary drill digs and holes, a part of electric power of the earth drill can be saved, and resources are saved.

2. The earth-boring drill bit is novel in structure, the primary drill is divided into the primary drill and the secondary drill, the semicircular pits and the semicircular bulges are arranged, when the primary drill rotates to dig earth and perforate, the semicircular bulges can move in the semicircular pits in a staggered mode due to ground pressure, meanwhile, the secondary drill can move up and down due to the fact that the I-shaped connecting piece is connected with the primary drill and the secondary drill, certain impact force is generated on the ground, and therefore the earth-boring and perforating efficiency of the drill bit can be further improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic structural diagram of a first mother drill and a second mother drill in the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

in the figure: the device comprises a mother drill 1, a first mother drill 11, a second mother drill 12, a rectangular groove 13, an I-shaped connecting piece 14, a semicircular concave pit 15, a semicircular protrusion 16, a son drill 2, an annular sliding groove 3, a sliding block 31, a cavity 32, a spring 33, a magnetic block 34, an air inlet 4, an air channel 41 and a cushion pad 5.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, an earth-boring drill bit according to the present invention includes a mother drill 1 and a daughter drill 2; an annular sliding groove 3 is formed in the main drill 1, a sliding block 31 is welded at one end of the auxiliary drill 2, which is welded with the sliding block 31, extends into the end portion of the main drill 1, the sliding block 31 is placed in the annular sliding groove 3, and the friction force between the sliding block 31 and the annular sliding groove 3 is larger than the gravity borne by the auxiliary drill 2; the auxiliary drill 2 and the main drill 1 are matched to improve the use precision of the drill bit; when the drill bit is placed on an earth drill for use, an output device in the earth drill drives a main drill 1 to rotate, the main drill 1 rotates and drives a sub-drill 2 to rotate through the cooperation of an annular sliding groove 3 and a sliding block 31, so when the drill bit works, firstly, the sub-drill 2 is in contact with the ground, because the diameter of the sub-drill 2 is smaller than that of the main drill 1, the pressure on the ground is strong, the efficiency of the drill bit for digging and punching earth can be improved when the sub-drill 2 works, meanwhile, positioning is provided for the main drill 1, the accuracy of the digging and punching earth is improved, when the main drill 1 works, on the basis of the range of the digging and punching earth of the sub-drill 2, the range of the digging and punching earth of the drill bit can be improved, the effective working area of the drill bit is improved, the main drill 1 works on the premise that the sub-drill 2 has dug and punched earth.

As a specific embodiment of the present invention, a cavity 32 is opened at the top of the annular chute 3, and the width of the cavity 32 is greater than the width of the annular chute 3; the sub drill 2 is connected with the cavity 32 through a spring 33, and the sliding block 31 starts to move into the cavity 32 after the sub drill 2 contacts the ground; when the sub-drill 2 digs earth and drills a hole, along with the increase of the tunneling depth, the pressure given to the sub-drill 2 by the ground is larger, at the moment, the sliding block 31 in the sub-drill 2 moves towards the cavity 32, after the sliding block 31 completely moves into the cavity 32, the sliding block 31 is separated from the annular sliding chute 3, at the moment, the sub-drill 2 cannot rotate along with the main drill 1, and on one hand, a part of electric power of the ground drill can be saved; on the other hand, make things convenient for the work that mother bored 1 and put into the excavation and make a hole, and son bores 2 and no longer rotates after mother bored 1 and put into operation, also can reduce the volume that gets into earth in the annular spout 3, makes things convenient for the clearance in drill bit later stage.

As a specific embodiment of the present invention, the top of the cavity 32 is symmetrically and fixedly connected with magnetic blocks 34 by using the spring 33 as a reference, and the magnetic blocks 34 are used for adsorbing the sub-drills 2 entering the cavity 32; when the sub-drill 2 enters the cavity 32, the sub-drill is adsorbed by the magnetic block 34 attached to the top of the cavity 32, and the situation that the sub-drill 2 suddenly extends out under the action of the restoring force of the spring 33 to hurt a user of the earth drill after the drill bit extends out of a drilled hole after digging and drilling can be prevented.

As a specific embodiment of the invention, the mother drill 1 is composed of a first mother drill 11 and a second mother drill 12, one end of the first mother drill 11, which is close to the second mother drill 12, is provided with a rectangular groove 13, one end of the second mother drill 12, which is close to the first mother drill 11, is provided with a rectangular groove 13 which is the same as the first mother drill 11, the

rectangular grooves

13 and 13 are connected through an i-shaped connecting piece 14, and the i-shaped connecting piece 14 is rotatably connected with the rectangular groove 13; a semicircular pit 15 is formed in one end, close to the second mother drill 12, of the first mother drill 11, a semicircular bulge 16 is fixedly connected to one end, corresponding to the semicircular pit 15, of the second mother drill 12, and the semicircular bulge 16 and the semicircular pit 15 are matched to improve the impact force of a drill bit; when the mother drill 1 works, the mother drill 1 consists of a mother drill 11 and a second mother drill 12, a semicircular pit 15 is formed in the first mother drill 11, semicircular bulges 16 are fixedly connected to the second mother drill 12, the mother drill 1 rotates to dig soil and punch holes, the semicircular bulges 16 can move in the semicircular pit 15 due to ground pressure, and meanwhile, the first mother drill 11 and the second mother drill 12 are connected through an I-shaped connecting piece 14, the second mother drill 12 can move up and down and generate certain impact force on the ground, so that the soil digging and punching efficiency of a drill bit of the drill bit can be further improved.

As a specific embodiment of the present invention, the semicircular projection 16 is made of a rubber material, the semicircular projection 16 is a hollow structure, and the semicircular projection 16 is provided with the air inlet 4; an air passage 41 is arranged in the second mother drill 12, one end of the air passage 41 is communicated with the semicircular bulge 16, and the other end of the air passage 41 is communicated with one end of the second mother drill 12 far away from the semicircular bulge 16; when the semicircular bulge 16 moves in the semicircular pit 15 in a staggered manner, the semicircular bulge 16 is compressed, partial gas in the semicircular bulge 16 is discharged from the bottom of the second female drill 12 through the air passage 41, and partial soil on two sides of the second female drill 12 can be blown down when the second female drill 12 works, so that the soil excavation and hole punching efficiency of the drill bit is further improved.

As a specific embodiment of the present invention, the rectangular groove 13 includes a layer of cushion 5 therein, and the cushion 5 is used for reducing the friction between the i-shaped connecting member 14 and the rectangular groove 13; the cushion pad 5 can reduce the impact force of the I-shaped connecting piece 14 on the first female drill 11 and the second female drill 12 when the second female drill 12 moves up and down, thereby prolonging the service life of the drill bit.

When the drill bit is manufactured, the mother drill 1 can be manufactured in two sections to reserve the rectangular groove 13 and the cavity 32, reserve the rectangular groove 13 to place the I-shaped connecting piece 14, reserve the cavity 32 to place the spring 33 and the magnetic block 34, and then the mother drill 1 manufactured in two sections is welded together.

When the drill bit is placed on an earth drill for use, an output device in the earth drill drives a mother drill 1 to rotate, the mother drill 1 drives a son drill 2 to rotate through the matching of an annular sliding chute 3 and a sliding block 31, so that when the drill bit works, firstly, the son drill 2 is in contact with the ground, and the diameter of the son drill 2 is smaller than that of the mother drill 1, so that the ground is strongly pressed, the efficiency of the drill bit for digging and punching earth can be improved when the son drill 2 works, meanwhile, positioning is provided for the mother drill 1, the accuracy of the digging and punching earth is improved, and when the mother drill 1 works, on the basis of the range of the digging and punching earth of the son drill 2, the range of the drill bit for digging and punching earth can be improved, the effective working area of the drill bit is improved, and the mother drill 1 works on the premise that the son drill 2 has dug and punched earth, and can also save a part; when the sub-drill 2 digs earth and drills a hole, along with the increase of the tunneling depth, the pressure given to the sub-drill 2 by the ground is larger, at the moment, the sliding block 31 in the sub-drill 2 moves towards the cavity 32, after the sliding block 31 completely moves into the cavity 32, the sliding block 31 is separated from the annular sliding chute 3, at the moment, the sub-drill 2 cannot rotate along with the main drill 1, and on one hand, a part of electric power of the ground drill can be saved; on the other hand, the operation of digging and punching the soil is convenient for the primary drill 1, and the secondary drill 2 does not rotate after the primary drill 1 is operated, so that the amount of the soil entering the annular chute 3 can be reduced, and the later-stage cleaning of the drill bit is convenient; when the sub-drill 2 enters the cavity 32, the sub-drill is adsorbed by the magnetic block 34 attached to the top of the cavity 32, so that the problem that the sub-drill 2 suddenly extends out under the action of the reset force of the spring 33 to hurt a user of the earth drill after the drill bit extends out of a drilled hole after digging and drilling the hole can be prevented; when the primary drill 1 works, the primary drill 1 consists of a primary drill 11 and a secondary drill 12, a semicircular pit 15 is formed in the primary drill 11, a semicircular bulge 16 is fixedly connected to the secondary drill 12, when the primary drill 1 rotates to dig soil and punch holes, the semicircular bulge 16 can move in the semicircular pit 15 in a dislocation mode due to the ground pressure, and meanwhile, due to the fact that an I-shaped connecting piece 14 is connected with the primary drill 11 and the secondary drill 12, the secondary drill 12 can move up and down to generate certain impact force on the ground, so that the soil digging and punching efficiency of a drill bit of the drill bit can be further improved; the cushion pad 5 can reduce the impact force of the I-shaped connecting piece 14 on the first mother drill 11 and the second mother drill 12 when the second mother drill 12 moves up and down, so that the service life of the drill bit is prolonged; when the semicircular concave 15 moves in a staggered manner, the semicircular convex 16 is compressed, so that partial air in the semicircular convex 16 is discharged from the bottom of the second female drill 12 through the air passage 41, and partial soil on two sides of the second female drill 12 can be blown off when the second female drill 12 works, and the efficiency of digging and punching the soil by the drill bit is further improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An earth-boring drill bit, comprising: comprises a main drill (1) and a sub drill (2); an annular sliding groove (3) is formed in the main drill (1), a sliding block (31) is welded at one end of the auxiliary drill (2), one end, welded with the sliding block (31), of the auxiliary drill (2) extends into the annular sliding groove (3) from the end portion of the main drill (1), the sliding block (31) is placed into the annular sliding groove (3), and the friction force between the sliding block (31) and the annular sliding groove (3) is larger than the gravity force borne by the auxiliary drill (2); the auxiliary drill (2) and the main drill (1) are matched for improving the use precision of the drill bit;

the primary drill (1) consists of a primary drill (11) and a secondary drill (12), a rectangular groove (13) is formed in one end, close to the secondary drill (12), of the primary drill (11), a rectangular groove (13) identical to the primary drill (11) is formed in one end, close to the primary drill (11), of the secondary drill (12), the rectangular groove (13) is connected with the rectangular groove (13) through an I-shaped connecting piece (14), and the I-shaped connecting piece (14) is rotatably connected with the rectangular groove (13); a semicircle pit (15) has been seted up to the one end that No. one mother bores (11) is close to No. two mother bores (12), and No. two mother bores (12) and goes up the one end rigid coupling corresponding with semicircle pit (15) and have semicircle arch (16), and the cooperation of semicircle arch (16) and semicircle pit (15) is used for improving the impact force of drill bit.

2. An earth-boring drill bit according to claim 1, wherein: a cavity (32) is formed in the top of the annular sliding groove (3), and the width of the cavity (32) is larger than that of the annular sliding groove (3); the sub drill (2) is connected with the cavity (32) through a spring (33), and the sliding block (31) starts to move towards the cavity (32) after the sub drill (2) contacts the ground.

3. An earth-boring drill bit according to claim 2, wherein: the top of the cavity (32) is symmetrically and fixedly connected with magnetic blocks (34) by taking the spring (33) as a reference, and the magnetic blocks (34) are used for adsorbing the sub-drills (2) entering the cavity (32).

4. An earth-boring drill bit according to claim 1, wherein: the semicircular bulges (16) are made of rubber materials, the semicircular bulges (16) are of hollow structures, and air inlets (4) are formed in the semicircular bulges (16); an air passage (41) is arranged in the second female drill (12), one end of the air passage (41) is communicated with the semicircular bulge (16), and the other end of the air passage (41) is communicated with one end, far away from the semicircular bulge (16), of the second female drill (12).

5. An earth-boring drill bit according to claim 1, wherein: the rectangular groove (13) is internally provided with a layer of cushion pad (5), and the cushion pad (5) is used for reducing the friction force between the I-shaped connecting piece (14) and the rectangular groove (13).