CN216974737U

CN216974737U - Impact drill bit with outer ribs and inner cage

Info

Publication number: CN216974737U
Application number: CN202220860211.2U
Authority: CN
Inventors: 张蒙; 刘晓勇; 田宇啸; 王建超; 武学文; 杨晓笨; 宁国君
Original assignee: First Engineering Co Ltd of China Railway Urban Construction Group Co Ltd
Current assignee: First Engineering Co Ltd of China Railway Urban Construction Group Co Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-07-15
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses an outer rib and inner cage percussion drill bit which comprises a connecting rod and a middle rib, wherein a cutting disc is fixedly arranged on the surface of the connecting rod, the bottom end of the connecting rod is fixedly connected with a connecting disc, a drill bit is fixedly arranged at the bottom end of the connecting disc, the surface of the drill bit is connected with a fixing ring in a sliding mode, a bottom ring is fixedly arranged at the bottom end of the fixing ring, a clamping block is fixedly arranged on the side wall of the bottom ring, a connecting groove matched with the clamping block is formed in the bottom end of the middle rib, and a bolt is connected inside the clamping block in a sliding mode. Install on the drill bit surface through the well rib that sets up, the rubble that produces when punching is discharged from the inside storage hole department of well rib to in the rubble to the production is handled, thereby avoided when punching, the rubble of bottom is difficult to discharge, needs to use the drill bit repeatedly and carries out the hammering, takes out the rubble earth of bottom, leads to needing longer time when using.

Description

Impact drill bit with outer ribs and inner cage

Technical Field

The utility model belongs to the technical field of percussion bits, and particularly relates to an outer rib inner cage percussion bit.

Background

The pile is formed by impacting hard soil or rock stratum, crushing and forming holes, extruding partial broken slag and slurry into hole wall, digging out the hole by using a slag digging barrel, then pouring concrete to form a pile, and when adopting impact hole-forming drilling construction, impacting broken stone in stratum into small stone chips through the reciprocating impact of the impact drill bit on the broken stone soil, returning the small stone chips to the ground along with the slurry, and realizing impact drilling hole-forming.

Conventional percussion drill bit devices, when in use:

1. because conventional percussion bit bottom is solid post, has leaded to when punching, the rubble of bottom is difficult to discharge, needs to use the drill bit repeatedly to carry out the hammering, takes out the rubble earth of bottom, leads to needing longer time when using to the work efficiency who has caused percussion bit slows down.

2. Because conventional percussion bit volume is less, has leaded to in the work progress, will break into tiny stone bits to the lump stone, and conventional drill bit drilling speed is slower, and changes great drill bit, needs bigger dynamics to strike, leads to the time difference that needs between the two to cause percussion bit to produce inconveniently when using.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the technical problems to be solved by the utility model are as follows: the working efficiency of the percussion drill bit is slowed down.

In order to solve the technical problem, the utility model adopts the following technical scheme: cage percussion bit in outer rib, including connecting rod and well rib, the fixed surface of connecting rod installs the cutting dish, and the bottom fixedly connected with connection pad of connecting rod, the bottom fixed mounting of connection pad has the drill bit, the storage hole has been seted up to the inside of well rib, the sliding surface of drill bit is connected with solid fixed ring, gu fixed ring's bottom fixed mounting has the end ring, the lateral wall fixed mounting of end ring has the fixture block, the bottom of well rib is seted up with the spread groove of fixture block looks adaptation, the inside sliding connection of fixture block has the bolt, the lateral wall fixed mounting of well rib has a plurality of fixed block, the one end fixedly connected with outer rib of well rib is kept away from to the fixed block.

Preferably, the center of the connecting rod and the center of the drill bit are on the same straight line, the dimension of the surface of the connecting disc is matched with the dimension of the top of the middle rib, the top of the middle rib is fixedly installed on the surface of the drill bit, and the dimension of the inner wall of the storage hole is larger than the dimension of the bottom end of the drill bit.

Be convenient for handle the rubble that produces to avoided when punching, the rubble of bottom is difficult to discharge, need use the drill bit repeatedly to carry out the hammering, takes out the rubble earth of bottom, leads to needing longer time when using, thereby has caused percussion bit's work efficiency to slow down.

Preferably, the size specification of the inner ring wall of the fixing ring is matched with the size specification of the surface of the drill bit, the side wall of the bottom ring is fixedly connected with the inner wall of the storage hole, the storage specification of the surface of the bottom ring is matched with the size specification of the inner wall of the storage hole, and the size specification of the surface of the fixing ring is larger than the size specification of the surface of the bottom ring.

The broken stones can be conveniently taken out when the connecting rod is pulled upwards.

Preferably, the clamping blocks are at least three, the cross sections of the clamping blocks are all in an L-shaped structure, the clamping blocks are distributed in a circumferential array mode by taking the center of the middle rib as an axis, and the surfaces of the clamping blocks are clamped with the inner wall of the connecting groove.

The shielding net can be conveniently detached, so that the shielding net is more convenient to replace and clean.

Preferably, the surface of the bolt is threadedly mounted with the inside of the center rib.

The fixture block is convenient to fix in the connecting groove, so that the problem that the fixture block is separated from the connecting groove when the drill bit moves is avoided.

Preferably, the center of the outer rib is on the same straight line with the center of the middle rib, and the dimension of the surface of the outer rib is larger than that of the surface of the middle rib.

The construction area of drill bit is convenient for increase to avoided in the work progress, to be washed into tiny stone bits to the lump stone, conventional drill bit drilling speed is slower, and changes great drill bit, needs bigger dynamics to strike, leads to required time difference between the two to be almost nothing, thereby causes the percussion bit to produce inconveniently when using.

The friction force borne by the fixing block is convenient to reduce, and the pressing is easier.

Compared with the prior art, the utility model has the beneficial effects that:

1. install on the drill bit surface through the well rib that sets up, the rubble that produces when punching is discharged from the inside storage hole department of well rib to in handling the rubble that produces, thereby avoided when punching, the rubble of bottom is difficult to discharge, need use the drill bit repeatedly to carry out the hammering, takes out the rubble earth of bottom, leads to needing longer time when using, thereby has caused the work efficiency who strikes the drill bit to slow down.

2. The sheltering net is installed in storing the hole with the help of the end ring, solid fixed ring, the rubble that gets into the storage hole is collected, so that when the connecting rod is pulled up, take the rubble out, the fixture block card of fixed ring lateral wall is in the spread groove on well rib surface, so that the messenger shelters from the net and can dismantle, it is more convenient when changing and rinsing to make it, rotatory bolt passes fixture block and well rib internal connection, so that fix the fixture block in the spread groove, thereby avoided the drill bit when removing, the fixture block breaks away from the problem of spread groove.

3. Install on well rib surface through the outer rib that sets up, follow the removal when the drill bit removes, so as to increase the construction area of drill bit, thereby avoided in the work progress, need to break into tiny stone bits to the stone, conventional drill bit drilling speed is slower, and change great drill bit, it strikes to need bigger dynamics, it is almost the same to lead to required time difference between the two, thereby cause the percussion bit to produce inconveniently when using, the outer rib is installed on the surface of well rib with the help of the fixed block, with the help of the angle of outer rib slope, so as to reduce the frictional force that the fixed block received, it is more light when pushing down.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic illustration of a mid-rib configuration of the present invention;

fig. 3 is a schematic structural diagram of the position a of the present invention.

In the figure: 1. a connecting rod; 2. cutting the disc; 3. a connecting disc; 4. a drill bit; 5. a middle rib; 6. a storage hole; 7. a bottom ring; 8. a blocking net; 9. a fixing ring; 10. connecting grooves; 11. a clamping block; 12. a bolt; 13. a fixed block; 14. and an outer rib.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-3, the outer rib inner cage percussion drill comprises a connecting rod 1 and a middle rib 5, a cutting disc 2 is fixedly installed on the surface of the connecting rod 1, a connecting disc 3 is fixedly connected to the bottom end of the connecting rod 1, a drill bit 4 is fixedly installed at the bottom end of the connecting disc 3, a storage hole 6 is formed in the middle rib 5, a fixing ring 9 is slidably connected to the surface of the drill bit 4, a bottom ring 7 is fixedly installed at the bottom end of the fixing ring 9, a clamping block 11 is fixedly installed on the side wall of the bottom ring 7, a connecting groove 10 matched with the clamping block 11 is formed in the bottom end of the middle rib 5, a bolt 12 is slidably connected to the inside of the clamping block 11, a plurality of fixing blocks 13 are fixedly installed on the side wall of the middle rib 5, an outer rib 14 is fixedly connected to one end of the fixing block 13 far away from the middle rib 5, the center of the connecting rod 1 and the center of the drill bit 4 are on the same straight line, and the dimension specification of the surface of the connecting disc 3 is matched with the dimension of the top of the middle rib 5, the top of the middle rib 5 is fixedly arranged on the surface of the drill bit 4, and the size specification of the inner wall of the storage hole 6 is larger than that of the bottom end of the drill bit 4.

The working principle of the technical scheme is as follows:

when percussion bit construction, erect the rib and strike garrulous with big piece stone at drill bit 4 impact in-process, along with drill bit 4 whereabouts, discharge the rubble from the inside storage hole 6 department of well rib 5, so that handle the rubble that produces, thereby avoided when punching, the rubble of bottom is difficult to discharge, need use drill bit 4 repeatedly to carry out the hammering, conveniently take out the rubble earth of bottom in addition, prevent to need longer time when using, thereby caused percussion bit 4's work efficiency to slow down.

In another embodiment, as shown in fig. 3, the inner ring wall of the fixing ring 9 has a size corresponding to the size of the surface of the drill 4, the side wall of the bottom ring 7 is fixedly connected to the inner wall of the storage hole 6, the storage size of the surface of the bottom ring 7 is corresponding to the size of the inner wall of the storage hole 6, and the size of the surface of the fixing ring 9 is larger than the size of the surface of the bottom ring 7.

The shielding net 8 is installed in the storage hole 6 by means of the bottom ring 7 and the fixing ring 9, and crushed stones entering the storage hole 6 are collected so as to be brought out when the connecting rod 1 is pulled upwards.

In another embodiment, as shown in fig. 3, there are at least three latch blocks 11, the cross sections of the three latch blocks 11 are all in an "L" shape, the three latch blocks 11 are distributed in a circumferential array with the center of the middle rib 5 as an axis, and the surfaces of the latch blocks 11 are engaged with the inner wall of the connecting groove 10.

The clamping blocks 11 on the side wall of the fixing ring 9 are clamped in the connecting grooves 10 on the surface of the middle rib 5, so that the shielding net 8 can be detached, and the replacement and cleaning are more convenient.

In another embodiment, as shown in fig. 3, the surface of the bolt 12 is threadedly mounted with the inside of the center rib 5.

The rotation bolt 12 passes through the fixture block 11 to be connected with the inner part of the middle rib 5, so as to fix the fixture block 11 in the connection groove 10, thereby avoiding the problem that the fixture block 11 is separated from the connection groove 10 when the drill 4 moves.

In another embodiment, as shown in fig. 2, the center of the outer rib 14 is collinear with the center of the center rib 5, and the surface of the outer rib 14 has a dimensional specification greater than the dimensional specification of the surface of the center rib 5.

Install on well rib 5 surface through the outer rib 14 that sets up, follow the removal when drill bit 4 removes, so that increase drill bit 4's construction area, thereby avoided in the work progress, need be towards the piece stone to tiny stone chip, conventional drill bit 4 drilling speed is slower, and change great drill bit 4, need bigger dynamics to strike, lead to required time between the two to differ a little, thereby cause percussion bit 4 to produce inconveniently when using.

The outer rib 14 is mounted on the surface of the middle rib 5 by means of the fixing block 13, and the outer rib 14 is inclined at an angle so as to reduce the friction force applied to the fixing block 13 and to be more easily pressed down.

The working principle and the using process of the utility model are as follows: when the impact drill bit is constructed, the vertical rib breaks large stones in the impact process of the drill bit 4, along with the falling of the drill bit 4, the broken stones are discharged from the storage hole 6 inside the middle rib 5, so that the generated broken stones are treated, the problem that the broken stones at the bottom end are difficult to discharge when the drill bit is punched is avoided, the drill bit 4 needs to be repeatedly used for hammering, in addition, the broken stone soil at the bottom end is conveniently taken out, the long time is prevented from being needed when the drill bit is used, the working efficiency of the impact drill bit 4 is reduced, in addition, the shielding net 8 is arranged in the storage hole 6 by virtue of the bottom ring 7 and the fixing ring 9, the broken stones entering the storage hole 6 are collected, so that the broken stones are conveniently taken out when the connecting rod 1 is pulled up, the clamping blocks 11 on the side wall of the fixing ring 9 are clamped in the connecting grooves 10 on the surface of the middle rib 5, so that the shielding net 8 can be disassembled, and the replacement and the cleaning are more convenient, the rotation bolt 12 passes through the fixture block 11 to be connected with the inner part of the middle rib 5, so as to fix the fixture block 11 in the connection groove 10, thereby avoiding the problem that the fixture block 11 is separated from the connection groove 10 when the drill 4 moves.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Cage percussion bit in outer rib, including connecting rod (1) and well rib (5), its characterized in that: a cutting disc (2) is fixedly mounted on the surface of the connecting rod (1), a connecting disc (3) is fixedly connected to the bottom end of the connecting rod (1), and a drill bit (4) is fixedly mounted at the bottom end of the connecting disc (3);

the surperficial sliding connection of drill bit (4) has solid fixed ring (9), the bottom fixed mounting of solid fixed ring (9) has end ring (7), the lateral wall fixed mounting of end ring (7) has fixture block (11), spread groove (10) with fixture block (11) looks adaptation are seted up to the bottom of well rib (5), the inside sliding connection of fixture block (11) has bolt (12), the lateral wall fixed mounting of well rib (5) has a plurality of fixed block (13), the one end fixedly connected with outer rib (14) of well rib (5) are kept away from in fixed block (13).

2. An outer rib inner cage percussion drill bit according to claim 1, wherein: the interior of the middle rib (5) is provided with a storage hole (6).

3. An outer rib inner cage percussion drill bit according to claim 2, wherein: the center of connecting rod (1) is on same straight line with drill bit (4) center, the specification on connection pad (3) surface and well rib (5) top specification looks adaptation, the top and drill bit (4) fixed surface installation of well rib (5), the specification of storing hole (6) inner wall is greater than drill bit (4) bottom specification.

4. An outer rib inner cage percussion drill bit according to claim 1, wherein: the size specification of solid fixed ring (9) inner ring wall and drill bit (4) surface dimension specification looks adaptation, the lateral wall and the storage hole (6) inner wall fixed connection of end ring (7), and the storage specification on end ring (7) surface and the storage hole (6) inner wall dimension specification looks adaptation, the size specification on solid fixed ring (9) surface is greater than end ring (7) surface dimension specification.

5. An outer rib inner cage percussion drill bit according to claim 1, wherein: the fixture block (11) is at least three, three the cross-section of fixture block (11) all is "L" font structure, three fixture block (11) use well rib (5) center as the axle center and be the circumference array distribution, and the surface and the spread groove (10) inner wall joint of fixture block (11).

6. An outer rib inner cage percussion drill bit according to claim 1, wherein: the surface of the bolt (12) is in threaded mounting with the interior of the middle rib (5).

7. An outer rib inner cage percussion drill bit according to claim 1, wherein: the center of the outer rib (14) and the center of the middle rib (5) are on the same straight line, and the size specification of the surface of the outer rib (14) is larger than that of the surface of the middle rib (5).

8. An outer rib inner cage percussion drill bit according to claim 1, wherein: the fixed blocks (13) are distributed in a circumferential array by taking the center of the middle rib (5) as an axis.