CN215948450U

CN215948450U - Drill bit for tunnel drainage blind pipe dredging equipment

Info

Publication number: CN215948450U
Application number: CN202122008409.6U
Authority: CN
Inventors: 邓江涛; 苏振军; 王超; 杨龙; 柳朝郸; 崔齐飞; 陆红吉; 耿哲; 张瑶
Original assignee: Institute of Science and Technology of China Railway Xian Group Co Ltd
Current assignee: Institute of Science and Technology of China Railway Xian Group Co Ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-04
Anticipated expiration: 2031-08-25

Abstract

The utility model belongs to the technical field of dredging of drainage blind pipes of traffic tunnels, and particularly relates to a drill bit for a dredging device of the drainage blind pipes of the tunnels, which comprises a drill bit and a cutter head, wherein the drill bit is of a conical structure, a spiral cutting thread is arranged on the drill bit, a plurality of notches are sequentially formed in the cutting thread, and the cutter head is arranged at the top end of the drill bit along the axial direction of the drill bit; the drill bit adopts the toper structure and sets up cutting screw on the drill bit, can guarantee that the drill bit realizes advancing automatically through the screw thread in cutting process, and the tool bit carries out thorough cleaing away the breakage to the plug, accomplishes the high-efficient clearance to the plug, and the waste material after the cutting can be discharged through the notch on the cutting screw, makes things convenient for the completion of cutting work, simple structure, and work efficiency is high.

Description

Drill bit for tunnel drainage blind pipe dredging equipment

Technical Field

The utility model belongs to the technical field of dredging of blind drainage pipes of traffic tunnels, and particularly relates to a drill bit for a dredging device of blind drainage pipes of tunnels.

Background

The tunnel drainage system generally has the problems of blockage caused by deposition and scaling of silt, calcium carbonate and the like, so that the tunnel drainage is not smooth, and further structural diseases such as tunnel water leakage, lining cracking and the like are caused. The causes of the blockage of the tunnel drainage blind pipe are numerous, and the blockage causes are mainly divided into the following reasons: (1) the groundwater seeps into the tunnel drainage blind pipe to form calcium carbonate crystals; (2) rock fragments and silt washed by the underground water flow move into a tunnel drainage blind pipe; (3) high-strength impurities such as cement concrete and the like which are locally damaged and infiltrate in the construction process. The drainage blind pipe is used as an important component of a tunnel drainage system, and the plugging state of the drainage blind pipe is directly related to the service performance of the tunnel. At present, a mechanical cutting method is adopted to dredge pipelines, but the conventional drill bit has insufficient rock breaking capacity and low cutting efficiency, is difficult to dredge the blockage in the drain pipe, and has small tunneling force and low working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drill bit for tunnel drainage blind pipe dredging equipment, and solves the problem that in the prior art, blockage in a drainage pipe is low in cleaning efficiency.

The technical scheme for achieving the aim comprises the following steps: the utility model provides a drill bit for tunnel drainage blind pipe mediation equipment, its characterized in that, includes drill bit and tool bit, the drill bit is the toper structure, is provided with spiral cutting thread on the drill bit, a plurality of notches have been seted up in proper order on the cutting thread, the tool bit sets up the top at the drill bit along drill bit axis direction.

Further defined, the notch is disposed along an axial direction of the drill bit.

Further limit, the drill bit is round platform structure, and the tool bit setting is at the last top surface of drill bit.

Further defined, the cutter head is in threaded connection with the drill bit.

Further defined, the taper of the drill bit is 2: 1.

Further defined, the ratio of the pitch of the cutting thread to the height of the drill bit is 3: 1.

Further, the bottom surface of the drill bit is provided with a connecting rod, and the connecting rod is positioned on an extension line of the axis of the drill bit.

Further limiting, a key groove is formed in the connecting rod, and the key groove is perpendicular to the connecting rod in the forming direction.

The utility model has the beneficial effects that:

1. the drill bit adopts the toper structure and sets up cutting screw on the drill bit, can guarantee that the drill bit realizes advancing automatically through the screw thread in cutting process, and the tool bit carries out thorough cleaing away the breakage to the plug, accomplishes the high-efficient clearance to the plug, and the waste material after the cutting can be discharged through the notch on the cutting screw, makes things convenient for the completion of cutting work, simple structure, and work efficiency is high.

2. The drill bit can be dismantled with the tool bit spiral and be connected for in the cleaning work, can correspond different plugs and change different tool bits, realize the high-efficient clearance mediation of drain pipe, the connecting rod that sets up bottom the drill bit can be connected with drive mechanism through the keyway and rotate the transmission, realizes the drive to the drill bit.

Drawings

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

FIG. 2 is a schematic view of the drill bit of the present invention;

FIG. 3 is a schematic view of a tool tip configuration according to the present invention;

in the figure: 1-cutting a thread; 2-a cutter head; 3-notch; 4-connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a drill bit for tunnel drainage blind pipe mediation equipment, including the drill bit, tool bit 2, connecting rod 4 and the cutting thread 1 of setting on the drill bit, carbide can be chooseed for use to the drill bit, tool bit 2 can select high-speed steel, the drill bit is conical mechanism, be provided with helical structure's cutting thread 1 on the surface of drill bit, set up a plurality of intervals on cutting thread 1 and set up the notch, tool bit 2 is then installed on the top surface of drill bit along the direction of drill bit axis, make tool bit 2 cut the breakage to the plug at the top, make the drill bit can provide the power that gos forward through cutting thread at rotatory in-process, the plug is discharged from the notch by the waste material after the breakage, accomplish the cleaning work of drain pipe.

Example 1

Specifically, the structure of the drill is preferably a circular truncated cone structure, the taper of the drill is 2:1, the initial angle of the cutting thread 1 is 0 degrees, the ratio of the thread pitch of the cutting thread 1 to the height of the drill is 3:1, the cutting thread 1 is provided with at least three circles, the notch and the axis of the drill are arranged in the same direction, waste materials of blocking objects can be conveniently discharged by the drill in the rotating process, meanwhile, the quality of the drill can be reduced, and the drill is convenient to carry.

Tool bit 2 and drill bit threaded connection, the convenience should different plugs in the use change different tool bit 2, cutting thread 1 is the dextrorotation, 2 threaded connection departments of tool bit are the dextrorotation equally, move forward when the drill bit clockwise rotation, the drill bit drives 2 clockwise rotations of tool bit and cuts this moment, receive anticlockwise effort under the interact of tool bit and plug, make tool bit 2 and drill bit be in the pretension state in the course of the work always, avoid tool bit 2 to drop in the construction.

The connecting rod 4 is arranged in the middle of the bottom of the drill bit and is perpendicular to the bottom of the drill bit, namely the connecting rod 4 is positioned on an extension line of the axis of the drill bit, the drill bit is connected with the driving device through the connecting rod, the driving device can be selected from a daily existing motor or a motor which is connected with the connecting rod 4 through a transmission part, a key slot is arranged on the connecting rod 4, the key slot is arranged in the direction perpendicular to the connecting rod 4, the connecting rod 4 is connected with the transmission part through the key slot, the transmission part drives the drill bit to rotate, in order to avoid the damage caused by the twisting of the drain pipe when the cutter head 2 and the drill bit clean the blockage in the drain pipe, a device for supporting the drain pipe can be added in the drain pipe, for example, a lining barrel is arranged on the inner wall of the drain pipe, the motor is connected with the connecting rod through a transmission rod with a universal joint, and the transmission rod with the universal joint passes through the lining barrel, guarantee that the drill bit can normally rotate, also can guarantee that the drill bit can keep rotating when the turning to avoid the damage of drain pipe.

The working principle is as follows: when in actual use, the composition according to the plug in the drain pipe selects suitable tool bit 2, install tool bit 2 at the top of drill bit, stretch into the drain pipe with the drill bit afterwards, start drive arrangement, it rotates to drive the drill bit through connecting rod 4, the drill bit drives tool bit 2 and rotates, tool bit 2 carries out the breakage to the plug, 1 cutting screw thread on the drill bit drives the drill bit and moves forward when rotating, thereby promote tool bit 2 and move forward, it is broken to continue to accomplish the cutting to the plug, 1 cutting screw thread cuts the plug on the pipe wall simultaneously and clears away, until the plug is cleared up, at the clearance in-process, avoid blockking up through 3 discharges of notch by broken plug waste residue, and easy operation, the effect is obvious, and work efficiency is showing and is improving.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drill bit for tunnel drainage blind pipe mediation equipment, its characterized in that, includes drill bit and tool bit (2), the drill bit is the toper structure, is provided with spiral cutting screw thread (1) on the drill bit, a plurality of notches (3) have been seted up in proper order on cutting screw thread (1), tool bit (2) set up the top at the drill bit along drill bit axis direction.

2. Drill bit for tunnel drain blind dredging equipment according to claim 1, characterized in that the notch (3) is arranged in the axial direction of the drill bit.

3. The drill bit for the blind drain dredging device of the tunnel according to claim 2, wherein the drill bit is of a circular truncated cone structure, and the cutter head (2) is arranged on the upper top surface of the drill bit.

4. A drill bit for a blind drain dredger according to claim 3, characterized in that the cutter head (2) is in threaded connection with the drill bit.

5. The drill bit for the blind tunnel drain dredging device according to claim 4, wherein the taper of the drill bit is 2: 1.

6. The drill bit for a tunnel drain blind dredging device according to claim 5, characterized in that the ratio of the pitch of the cutting thread (1) to the height of the drill bit is 3: 1.

7. The drill bit for the blind drain dredging device of the tunnel according to claim 6, wherein the bottom surface of the drill bit is provided with a connecting rod (4), and the connecting rod (4) is positioned on the extension line of the axis of the drill bit.

8. The drill bit for the dredging equipment of the tunnel drainage blind pipe according to claim 7, wherein the connecting rod (4) is provided with a key slot, and the key slot is arranged in a direction perpendicular to the connecting rod (4).