CN211287511U

CN211287511U - Impacter suitable for combination formula is selected

Info

Publication number: CN211287511U
Application number: CN201922382407.6U
Authority: CN
Inventors: 杨日平; 魏正军; 杨湘龙
Original assignee: Changsha Heijingang Industrial Co Ltd
Current assignee: Changsha Heijingang Industrial Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-18
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an impacter suitable for combination formula is selected, including outer jar, distribution gas pole, piston, nylon pipe and drill bit, piston movable mounting is inside the outer jar, the distribution gas pole is connected to the one end of piston, and the other end is connected with the drill bit through the nylon pipe, the drill bit includes drill bit head and the drill bit afterbody that is connected with the drill bit head, the drill bit afterbody is connected with the nylon pipe, drill bit afterbody and outer jar cylinder clearance connection. The utility model discloses a drill bit of no spline is installed on the impacter, and the drill bit of no spline can realize the biography of oneself under the frictional force effect of ground or cliff when driling ground or cliff to guarantee the even wearing and tearing of drill bit, improve drill bit life. In addition, the design of snap ring can prevent the nature of drill bit from droing, makes things convenient for the continuous use of drill bit.

Description

Impacter suitable for combination formula is selected

Technical Field

The utility model belongs to the technical field of the impacter and specifically relates to an impacter suitable for combination formula is selected.

Background

The impactor is a basic device that is used in drilling operations and is useful in many mining locations. The existing impactors can only work independently, the two impactors cannot operate simultaneously, and when drilling a large-range drilled hole, the single impacter works independently and is low in efficiency.

The applicant can let two impactors link together and form combination formula rotary impact ware through designing the mount pad, and two impactors in the combination formula rotary impact ware revolve round an axis, can be to drilling on ground or the ore rock jointly, have increased drilling efficiency by a wide margin. However, in this case, the impacter itself does not rotate, and the conventional impacter is a drill bit connected by a spline, so that the drill bit does not rotate, and therefore, the outward surface of the drill bit is always in contact with the ore rock on the combined rotary impacter, and the service life of the drill bit is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide an impacter suitable for combination formula is selected, this impacter adopts the impacter of taking the nylon pipe, and impacter and drill bit adopt the connected mode of no spline, can be so that the drill bit can realize the biography of oneself under the frictional force effect of ground or cliff to guarantee the even wearing and tearing of drill bit, improve drill bit life.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an impacter suitable for combination formula is selected, includes outer jar, joins in marriage gas pole, piston, nylon pipe and drill bit, piston movable mounting is inside outer jar, the one end of piston is connected and is joined in marriage the gas pole, and the other end is connected with the drill bit through the nylon pipe, the drill bit includes drill bit head and the drill bit afterbody that is connected with the drill bit head, the drill bit afterbody is connected with the nylon pipe, drill bit afterbody and outer jar cylinder clearance connection.

Furthermore, one end of the gas distribution rod close to the piston is a closed end and extends into the piston.

Further, an air outlet hole is formed in one end, extending into the piston, of the air distribution rod, and the air outlet hole is communicated with an inlet of an air outlet channel formed in the piston.

Further, an outlet of the air outlet channel is communicated with a front cavity of the impactor, and the front cavity of the impactor is arranged at the joint of the piston and the nylon pipe.

Furthermore, one end of the drill bit head, which is far away from the drill bit tail, is provided with drill teeth, the drill bit tail is cylindrical, and the drill bit tail extends into the impactor.

Furthermore, the drill bit head is equipped with the powder discharge hole in the one end of keeping away from the drill bit afterbody, the drill bit is inside to be equipped with the powder discharge passageway, powder discharge passageway one end communicates with each other with the powder discharge hole, and the other end communicates with each other with the nylon tube.

Furthermore, the tail part of the drill bit is a stepped shaft, the diameter of one end close to the head part of the drill bit is larger than that of the end far away from the head part of the drill bit, and the diameter of a middle cylinder between the tail part of the drill bit and the head part of the drill bit is the smallest.

Furthermore, the outer cylinder is provided with a clamping ring corresponding to the middle cylinder, and the clamping ring is abutted to the middle cylinder.

Furthermore, a drill rod clamping sleeve is arranged at the joint of the tail of the drill bit and the outer cylinder.

Furthermore, a circular truncated cone extends outwards from one end, far away from the drill, of the outer cylinder, and a through hole is formed in the edge of the circular truncated cone.

The utility model has the advantages that:

the utility model discloses a drill bit of no spline is installed on the impacter, and the drill bit of no spline can realize the biography of oneself under the frictional force effect of ground or cliff when driling ground or cliff to guarantee the even wearing and tearing of drill bit, improve drill bit life. In addition, the design of snap ring can prevent the nature of drill bit from droing, makes things convenient for the continuous use of drill bit.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view of the structure of the piston ascending upward in the present embodiment;

FIG. 3 is a perspective view of the drill bit of this embodiment;

FIG. 4 is a schematic view of the internal structure of the drill bit of this embodiment;

fig. 5 is a perspective view of the outer cylinder in this embodiment.

In the figure: 1-flange plate, 2-O-shaped ring, 3-pressure bearing pad, 4-gas distribution rod, 5-piston, 6-outer cylinder, 7-elastic retainer ring, 8-snap ring, 9-snap drill sleeve, 10-nylon tube, 11-impactor front cavity, 12-drill bit, 401-air inlet channel, 402-air outlet hole, 403-closed end, 501-air outlet channel, 502-internal channel, 601-circular truncated cone, 602-through hole, 1201-powder discharge channel, 1202-drill bit head, 1203-drill bit tail, 1204-side tooth, 1205-middle tooth, 1206-powder discharge hole, 1207-alloy tooth mounting hole, 12031-first step shaft, 12032-second step shaft and 12033-third step shaft.

Detailed Description

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

And (3) connecting cylindrical gaps: the spline connection mode is different from the existing spline connection mode, is a connection mode without splines, and is equivalent to a mode of clearance fit between a shaft and a hole.

Referring to FIGS. 1 to 5: the utility model provides an impacter suitable for combination formula is selected, includes outer cylinder 6, distribution pole 4, piston 5, nylon tube 10 and drill bit 12, the outside extension of one end of outer cylinder 6 forms round platform 601, piston 5 movable mounting is inside outer cylinder 6, the piston 5 is close to the one end of round platform 601 and connects distribution pole 4, and the other end is connected with drill bit 12 through nylon tube 10, drill bit 12 includes drill bit head 1202 and the drill bit afterbody 1203 that is connected with drill bit head 1202, drill bit afterbody 1203 is connected with the nylon tube, and drill bit afterbody 1203 is connected with outer cylinder 6 cylinder clearance.

In the present embodiment, the end where the gas distribution rod 4 is installed is defined as an upper end. Piston 5 installs inside outer cylinder 6, and piston 5 can move in outer cylinder 6, is equipped with an inner passage 502 in piston 5 inside, is equipped with air distribution rod 4 in inner passage 502, and air distribution rod 4's one end stretches into in inner passage 502, the other end and outer cylinder 6 fixed connection, and when piston 5 upwards moved, air distribution rod 4 stretched into the length of piston 5's inner passage 502 and can increase.

An air inlet channel 401 is arranged in the air distribution rod 4, the end part of the air distribution rod 4 extending into the inner channel 502 of the piston 5 is a closed end 403, and the other end is an open end; an air outlet hole 402 is formed above the closed end 403, and the position of the air outlet hole 402 is positioned in the inner channel 502 of the piston 5; an air outlet channel 501 is arranged on the side of the internal channel 502 of the piston 5, when the piston 5 does not move upwards, an inlet of the air outlet channel 501 is communicated with the air outlet hole 402, and an outlet of the air outlet channel 501 is communicated with the impactor front cavity 11; the impactor front cavity 11 is a clearance area between the contact position of the piston 5 and the nylon pipe and the outer cylinder 6.

One end of the nylon tube can extend into the inner channel 502 of the piston 5, and the other end of the nylon tube is fixedly connected with the drill bit 12; the drill bit 12 comprises a drill bit head 1202 and a drill bit tail 1203 connected with the drill bit head 1202, wherein drill teeth are arranged at one end, away from the drill bit tail 1203, of the drill bit head 1202, the drill bit tail 1203 is cylindrical, and the drill bit tail 1203 extends into the impactor and is fixedly connected with the nylon tube 10.

In this embodiment, the drill teeth are spherical teeth, the spherical teeth include side teeth 1204 and middle teeth 1205, the side teeth 1204 are distributed along the edge of the drill bit 1202, and the middle teeth 1205 are distributed in the inner part of the area surrounded by the side teeth 1204. Still be equipped with three powder discharge hole 1206 between adjacent well tooth 1205, three powder discharge hole 1206 are the contained angle 120 each other, powder discharge passage 1201 is equipped with to the inside of drill bit 12, powder discharge passage 1201's one end powder discharge hole 1206 communicates with each other, and the other end communicates with each other through being managed 10 with the nylon.

In this embodiment, the number of the powder discharge holes can be changed according to the size of the drill, and the drill diameter is small. In addition, the spherical teeth are made of alloy, so that the spherical teeth are high in hardness and good in wear resistance. An alloy tooth mounting hole 1207 is formed in one end, provided with spherical teeth, of the head of the drill bit, and the spherical teeth are connected in the alloy tooth mounting hole 1207 in an interference mode, so that the spherical teeth are fixedly mounted on the drill bit.

The design of the bit 1202 is different from the design of the conventional bit 1202, and the powder discharge grooves and the transverse grooves are not designed, so that the number of spherical teeth arranged on the bit 1202 can be increased, the bit 12 is more wear-resistant, and the service life is longer; in addition, in the powder discharging manner in this embodiment, dust attached to the bit 1202 during use of the impactor is blown away through the powder discharging hole 1206 and the powder discharging channel 1201, and high-pressure gas in the impactor enters the bit 12 from the powder discharging channel 1201, passes through the powder discharging channel 1201, and is blown out from the powder discharging hole 1206 of the bit 1202 to blow off the dust attached to the bit 1202.

In this embodiment, the bit tail 1203 has a stepped axis, and the end near the bit head 1202 has a larger diameter than the end far from the bit head 1202, and the larger diameter end is defined as the first stepped axis 12031. The end with the smaller diameter is divided into two parts, wherein the diameter of the end far away from the bit 1202 is larger than that of the end close to the bit 1202, the end with the smaller diameter is defined as a second stepped shaft 12032, and the other end is defined as a third stepped shaft 12033; when the drill bit 12 is mounted in the impactor, the retainer ring 8 may be provided at a portion where the impactor contacts the second stepped shaft, so that the drill bit 12 does not fall off the impactor.

The joint of the drill bit tail 1203 and the outer cylinder 6 is provided with a drill bit clamping sleeve 9, and the drill bit clamping sleeve 9 is in clearance connection with the drill bit tail 1203. Compared with the existing drill bit 12, the drill bit tail 1203 in this embodiment is not provided with a spline, and is not connected with an impactor through the spline. The existing drill bit 12 adopts a spline connection mode because the impactor can drive the existing drill bit 12 to rotate, and the existing drill bit 12 cannot rotate; in the combined rotary impactor designed by the applicant, because the two impactors revolve around an axis, the impactors do not rotate, and if the drill bit 12 is connected by a spline, the drill bit 12 does not rotate, so that the outward surface of the drill bit 12 is always in contact with the ore rock, and the service life of the drill bit 12 is shortened. In the embodiment, the drill bit 12 abandons spline connection, and adopts cylindrical gap connection, so that when the combined rotary impactor rotates, the drill bit 12 in cylindrical gap connection can also rotate under the action of friction force of the hole rock wall, thereby ensuring uniform abrasion of the drill bit 12 during operation and prolonging the service life of the drill bit 12.

In this embodiment, a circular truncated cone 601 extends outwards from one end of the outer cylinder 6 far away from the drill bit 12, a through hole 602 is formed in the edge of the circular truncated cone 601, the through hole 602 is used for connecting the flange plate 1 through a bolt, after the flange plate 1 is connected with the outer cylinder 6, the end of the outer cylinder 68 is closed, a flange hole is reserved, the open end of the gas distribution rod 4 is arranged at the flange hole, and high-pressure gas enters the impactor from the open end of the gas distribution rod. O-shaped rings 2 are arranged at the joint of the flange plate 1 and the outer cylinder 6 and the joint of the gas distribution rod 4 and the outer cylinder 6, a pressure bearing pad 3 is arranged at the contact part of the flange plate 1 and the gas distribution rod 4, and the O-shaped rings 2 are arranged for sealing and preventing high-pressure gas from escaping from other gaps; the pressure bearing pad 3 is arranged between the two components and has the function of bearing pressure.

The utility model discloses a theory of operation and application method: referring to fig. 1, when high-pressure gas does not enter the impactor, the nylon tube 10 extends into an internal channel 502 of the piston 5, the piston 5 is in contact with the drill bit 12, and a contact position is provided with an elastic retainer ring 7, the elastic retainer ring is used for sealing and preventing gas leakage on one hand, and on the other hand, the piston is blocked, so that the piston cannot fall out when the drill bit is taken down, workers are injured by smashing, and safety is improved; the closed section of the gas distribution rod extends into the internal channel 502 of the piston 5, and the gas outlet 402 of the gas distribution rod 4 is communicated with the inlet of the gas outlet channel 501 in the piston 5; referring to fig. 2, high-pressure gas enters an air inlet channel 401 of the gas distribution rod 4 from an open end of the gas distribution rod 4, because one end of the gas distribution rod 4 is a closed end 403, the high-pressure gas will exit from an air outlet hole 402 of the gas distribution rod 4 and enter an air outlet channel 501 of the piston 5, and then the high-pressure gas exits from an outlet of the air outlet channel 501 and enters the impactor front cavity 11, because the nylon tube 10 is in an internal channel 502 of the piston 5 at the moment, the high-pressure gas has no place to flow and will push the piston 5 upwards, and at this moment, the air outlet channel 501 of the piston 5 is staggered with the air outlet hole 402 of the gas distribution rod 4, and the high-pressure gas enters the impactor front; then, high-pressure gas in the front cavity 11 of the impactor enters the powder discharge channel 1201 in the drill bit 12 from the inlet of the nylon pipe 10 and is discharged from the powder discharge hole 1206 of the drill bit head 1202; because the high-pressure gas at the position of the front cavity 11 of the impactor is exhausted, the high-pressure gas at the upper part of the piston does work, the piston 5 is pushed down to impact the drill bit, the drill bit is enabled to break rocks, and then the high-pressure gas enters the front cavity 11 of the impactor to be repeated.

The above technical features can be understood and implemented by those skilled in the art through the text description, and therefore, the accompanying drawings are not needed to be described.

Claims

1. An impactor adapted for modular selection, comprising: including outer jar, distribution gas pole, piston, nylon pipe and drill bit, piston movable mounting is inside outer jar, the distribution gas pole is connected to the one end of piston, and the other end is connected with the drill bit through the nylon pipe, the drill bit includes drill bit head and the drill bit afterbody that is connected with the drill bit head, the drill bit afterbody is connected with the nylon pipe, drill bit afterbody and outer jar cylinder gap connection.

2. The impactor for combined selection according to claim 1, wherein: one end of the gas distribution rod close to the piston is a closed end and extends into the piston.

3. The impactor for combined selection according to claim 2, wherein: and an air outlet hole is formed in one end, extending into the piston, of the air distribution rod, and the air outlet hole is communicated with an inlet of an air outlet channel arranged in the piston.

4. The impactor for combined selection according to claim 3, wherein: and an outlet of the air outlet channel is communicated with a front cavity of the impactor, and the front cavity of the impactor is arranged at the joint of the piston and the nylon pipe.

5. The impactor for combined selection according to claim 1, wherein: the drill bit is characterized in that drill teeth are arranged at one end, far away from the tail of the drill bit, of the drill bit head, the tail of the drill bit is cylindrical, and the tail of the drill bit extends into the impactor.

6. The impactor for combined selection according to claim 5, wherein: the drill bit is characterized in that a powder discharging hole is formed in one end, far away from the tail of the drill bit, of the drill bit head, a powder discharging channel is arranged inside the drill bit, one end of the powder discharging channel is communicated with the powder discharging hole, and the other end of the powder discharging channel is communicated with the nylon pipe.

7. The impactor for combined selection according to claim 5, wherein: the tail of the drill bit is a stepped shaft, the diameter of one end close to the head of the drill bit is larger than that of one end far away from the head of the drill bit, and the diameter of a middle cylinder between the two ends is the smallest.

8. The impactor for combined selection according to claim 7, wherein: the outer cylinder corresponds middle part cylinder department and is equipped with the snap ring, snap ring and middle part cylinder butt.

9. The impactor for combined selection according to claim 7, wherein: and a drill rod clamping sleeve is arranged at the joint of the tail part of the drill bit and the outer cylinder.

10. The impactor for combined selection according to any one of claims 1 to 9, wherein: the end, far away from the drill bit, of the outer cylinder extends outwards to form a circular truncated cone, and a through hole is formed in the edge of the circular truncated cone.