CN114837558A

CN114837558A - Drill jumbo-based tool bit sleeve for directional grooving of special-shaped holes

Info

Publication number: CN114837558A
Application number: CN202210589368.0A
Authority: CN
Inventors: 张学富; 胡波; 王纯龙; 潘东森; 楚博; 刘真
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-08-02
Also published as: CN117386290A

Abstract

The invention provides a drill bit sleeve tool for directional slotting of a special-shaped hole based on a rock drilling jumbo, which relates to the technical field of drilling, blasting and excavating of tunnels and underground engineering, and comprises a drill bit sleeve pipe assembly, wherein a drill rod connecting sleeve is arranged on the inner surface of the drill bit sleeve pipe assembly, a drill rod is arranged on one side of the drill rod connecting sleeve, a drill bit is arranged on the other side of the drill rod connecting sleeve, a rotary limiting sleeve pipe assembly is sleeved on the outer surface of the drill rod, the cutter bit sleeve pipe assembly comprises a cutter bit pipe, a slotting cutter and a limiting groove, the outer surface of the cutter bit pipe is fixedly connected with the slotting cutter, and the cutter bit sleeve assembly and the rotary limiting sleeve pipe assembly are matched for use, so that the cutter bit sleeve pipe assembly cannot move along with the movement of the drill bit, and slotting is carried out on the inside of a drilled hole in a fixed direction, the current situation that the existing grooving is difficult and poor in effect is improved, and great convenience is provided for blasting excavation work.

Description

Drill jumbo-based tool bit sleeve for directional grooving of special-shaped holes

Technical Field

The invention relates to the technical field of drilling, blasting, excavating and underground engineering, in particular to a drill bit sleeve tool for a special-shaped hole directional grooving based on a drill jumbo.

Background

With the continuous development of social economy and the stable promotion of urbanization process, the scale of highway engineering in China is gradually enlarged, the highway engineering construction directly influences the future development of cities and the trip of people, tunnels are the main content of the highway engineering construction, but at present, in the design and construction of highway tunnels in China, some main problems to be solved urgently still exist, in the drilling and blasting method construction, surrounding rock overbreak is difficult to control, the energy-gathering blasting theory is mature, but the slotting effect of special-shaped blast holes is poor, so that a special-shaped hole directional slotting tool bit sleeve is needed to improve the current situation of poor slotting effect.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a drill jumbo-based special-shaped hole directional grooving tool bit sleeve.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a directional fluting tool bit cover utensil in dysmorphism hole based on drill jumbo, includes tool bit thimble assembly, the internal surface of tool bit thimble assembly is provided with the drilling rod adapter sleeve, the drill rod is equipped with to one side of drilling rod adapter sleeve, the drill bit is equipped with to the opposite side of drilling rod adapter sleeve, the surface cover of drill rod is equipped with rotatory spacing thimble assembly.

In order to open a groove in the drill hole, the invention improves that the cutter head sleeve component comprises a cutter head pipe, a groove cutter and a limiting groove, the outer surface of the cutter head pipe is fixedly connected with the groove cutter, and the outer surface of the cutter head pipe is provided with the limiting groove.

In order to limit the movement of the cutter head sleeve component along with the drill bit, the invention improves the structure that the rotation limiting sleeve component comprises a rotation limiting pipe, a rotation limiting gripper and a trolley large-arm connecting port, wherein the rotation limiting gripper is fixedly installed on one side of the rotation limiting pipe, and the trolley large-arm connecting port is arranged on the other side of the rotation limiting pipe.

In order to push the cutter head sleeve assembly to move, the outer surface of the drill rod connecting sleeve is fixedly provided with a tail stop dog at one side of the cutter head sleeve assembly.

In order to enable the rotary limiting hand grip to be effectively attached to the limiting grooves, the invention improves the structure that the number of the limiting grooves is two, and the two groups of limiting grooves are symmetrically distributed on the outer surface of the cutter head pipe.

In order to move the rotary limiting gripper to the limiting groove, the invention improves the structure that the front end opening of the rotary limiting gripper is slightly larger and the rear end opening is smaller.

Compared with the prior art, the invention has the advantages and positive effects that,

in the invention, when the special-shaped hole slotting method is in actual use, the tool bit sleeve assembly, the drill rod connecting sleeve, the tail stop block, the drill rod, the drill bit and the rotation limiting sleeve assembly are arranged, and the tool bit sleeve assembly and the rotation limiting sleeve assembly are matched for use, so that the tool bit sleeve assembly cannot move along with the movement of the drill bit, and the inner part of a drilled hole is slotted in a fixed direction.

Drawings

Fig. 1 is a schematic view of the overall structure of a drill jumbo-based tool bit set for directional slotting of a special-shaped hole;

FIG. 2 is a side exploded view of a drill jumbo based tool bit set for directional grooving of a shaped hole according to the present invention;

FIG. 3 is a side cross-sectional view of a drill jumbo based profiled hole directional grooving tool bit set according to the present invention;

fig. 4 is a schematic structural view of a drill rod connecting sleeve in a special-shaped hole directional slotting tool bit sleeve based on a drill jumbo;

fig. 5 is a schematic structural diagram of a bit sleeve assembly in a drill bit sleeve tool for directional grooving of a special-shaped hole based on a drill jumbo according to the present invention;

fig. 6 is a schematic structural view of a rotation limiting sleeve assembly in a drill jumbo based profiled hole directional grooving tool set according to the present invention.

Illustration of the drawings:

1. a bit bushing assembly; 2. a drill rod connecting sleeve; 3. a tail stop block; 4. a drill rod; 5. a drill bit; 6. rotating the position-limiting sleeve assembly; 101. a bit tube; 102. a grooving cutter; 103. a limiting groove; 601. rotating the limiting pipe; 602. rotating the limiting gripper; 603. a trolley large arm connecting port.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Example one

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a directional fluting tool bit cover utensil in dysmorphism hole based on drill jumbo, including tool bit sleeve subassembly 1, tool bit sleeve subassembly 1's internal surface is provided with drilling rod adapter sleeve 2, internal surface through at tool bit sleeve subassembly 1 is provided with drilling rod adapter sleeve 2, the people of being convenient for install the tool bit sleeve subassembly, drill rod 4 is equipped with to one side of drilling rod adapter sleeve 2, drill rod 4 is equipped with through the one side that sets up drilling rod adapter sleeve 2, make it be connected with the big arm of jumbo, drill bit 5 is equipped with to the opposite side of drilling rod adapter sleeve 2, the surface cover of drill rod 4 is equipped with rotatory spacing sleeve subassembly 6, surface cover through setting up drill rod 4 is equipped with rotatory spacing sleeve subassembly 6, restriction tool bit sleeve subassembly 1 is along with drill bit 5 movements.

Referring to fig. 1-6, a cutter head sleeve assembly 1 includes a cutter head tube 101, a grooving cutter 102 and a limiting groove 103, the outer surface of the cutter head tube 101 is fixedly connected with the grooving cutter 102, the grooving cutter 102 is fixedly connected with the outer surface of the cutter head tube 101, during drilling, grooving in a drill hole is facilitated, the limiting groove 103 is formed on the outer surface of the cutter head tube 101, a rotary limiting sleeve assembly 6 includes a rotary limiting tube 601, a rotary limiting gripper 602 and a trolley boom connector 603, one side of the rotary limiting tube 601 is fixedly provided with the rotary limiting gripper 602, the other side of the rotary limiting tube 601 is provided with the trolley boom connector 603, so that a user can mount the rotary limiting sleeve assembly on a boom of a rock drilling trolley, a tail stopper 3 is fixedly mounted on one side of the cutter head sleeve assembly 1 on the outer surface of a drill rod connecting sleeve 2, one side fixed mounting that the surface through setting up drilling rod adapter sleeve 2 is located tool bit sleeve subassembly 1 has afterbody dog 3, make afterbody dog 3 promote tool bit sleeve subassembly 1 and remove, the quantity of spacing groove 103 is two sets of, two sets of spacing groove 103 symmetric distribution are at the surface of tool bit pipe 101, the front end opening of rotatory spacing tongs 602 is slightly big, the rear end opening is less, the front end opening through setting up rotatory spacing tongs 602 is slightly big, the rear end opening is less, even tool bit sleeve subassembly 1 has certain dislocation, rotatory spacing tongs 602 also can get into in the spacing groove 103, improve the fault-tolerant rate.

The working principle is as follows: firstly, a rotary limiting sleeve assembly 6 penetrates through a drill rod 4, the drill rod 4 is connected with a large arm of a drilling jumbo through a jumbo large arm connecting port 603, the angle is adjusted, the rotary limiting sleeve assembly 6 is perpendicular to the jumbo large arm and the drill rod 4, the drill rod 4 can freely rotate and stretch in the sleeve at the moment, the rotary limiting sleeve assembly 6 cannot be touched in the rotary stretching process, then a drill rod connecting sleeve 2 is connected with the drill rod 4, a cutter head sleeve assembly 1 is arranged outside the drill rod connecting sleeve 2, the tail part of the cutter head sleeve assembly 1 is contacted with a tail stop 3, the rotary limiting gripper 602 is positioned in a limiting groove 103 of the cutter head sleeve assembly 1, when a drill bit 5 is contacted with a drilling working face, the end part of the rotary limiting gripper 602 is contacted with the bottom end of the limiting groove 103, and in the clockwise rotation process of the drill bit 5, the cutter head sleeve assembly 1 cannot rotate along with the drill bit 5 due to the shape of the limiting groove 103, when the drill bit 5 drills gradually, the limiting groove 103 has a certain length, so that the tail stop block 3 of the drill rod connecting sleeve 2 pushes against the tool bit sleeve assembly 1 to advance gradually, the drill bit sleeve assembly 1 cannot rotate along with the drill bit 5 in the process, the aim of orientation is achieved, after the tool bit sleeve assembly 1 enters a drilling working face for a certain depth, the rotary limiting hand grip 602 is separated from the limiting groove 103, the groove carved in the drilling hole restricts the tool bit sleeve assembly 1 at the moment, the direction is controlled, after the drilling hole reaches the designed depth, the tool bit sleeve assembly 1 withdraws along the direction of the groove carving along with the drill bit 5, when the grooving tool 102 does not withdraw from the groove completely, the tail of the tool bit sleeve assembly 1 is contacted with the end of the rotary limiting hand grip 602, the rotary limiting hand grip 602 gradually enters the limiting groove 103 until the tool bit sleeve assembly 1 completely withdraws from the drilling hole, and because the head of the rotary limiting hand grip 602 is slightly larger, even if the cutter head sleeve assembly 1 has certain dislocation, the rotary limiting hand grip 602 can enter the limiting groove 103 after the cutter head sleeve assembly 1 rotates for a certain angle, so that the purpose of orientation is realized, and a drilling work cycle is completed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a directional fluting tool bit cover utensil in dysmorphism hole based on drill jumbo, includes tool bit sleeve subassembly (1), its characterized in that: the drill bit casing pipe assembly is characterized in that a drill rod connecting sleeve (2) is arranged on the inner surface of the tool bit casing pipe assembly (1), a drill rod (4) is installed on one side of the drill rod connecting sleeve (2), a drill bit (5) is installed on the other side of the drill rod connecting sleeve (2), and a rotary limiting casing pipe assembly (6) is sleeved on the outer surface of the drill rod (4).

2. The drill jumbo based profiled hole oriented grooving tool bit set of claim 1, wherein: the tool bit sleeve assembly (1) comprises a tool bit tube (101), a grooving cutter (102) and a limiting groove (103), the grooving cutter (102) is fixedly connected to the outer surface of the tool bit tube (101), and the limiting groove (103) is formed in the outer surface of the tool bit tube (101).

3. The drill jumbo based profiled hole oriented grooving tool bit set of claim 1, wherein: rotatory spacing thimble assembly (6) are including rotatory spacing pipe (601), rotatory spacing tongs (602) and big arm connector of platform truck (603), one side fixed mounting of rotatory spacing pipe (601) has rotatory spacing tongs (602), the opposite side of rotatory spacing pipe (601) is provided with big arm connector of platform truck (603).

4. The drill jumbo based profiled hole oriented grooving tool bit set of claim 1, wherein: and a tail stop block (3) is fixedly arranged on one side of the outer surface of the drill rod connecting sleeve (2) which is positioned on the tool bit sleeve assembly (1).

5. The drill jumbo based profiled hole oriented grooving tool bit set of claim 2, wherein: the number of the limiting grooves (103) is two, and the two groups of limiting grooves (103) are symmetrically distributed on the outer surface of the cutter head pipe (101).

6. The drill jumbo based profiled hole oriented grooving tool bit set of claim 3, wherein: the front end opening of the rotation limiting gripper (602) is slightly larger, and the rear end opening is smaller.