CN216966366U

CN216966366U - Multi-tooth hard alloy drill bit

Info

Publication number: CN216966366U
Application number: CN202122858464.4U
Authority: CN
Inventors: 王云兵; 刘智军; 宋婷婷; 王坤
Original assignee: Dalian Saike Cutting Tool Co ltd
Current assignee: Dalian Saike Cutting Tool Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-07-15
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a multi-tooth hard alloy drill bit, which comprises a multi-tooth hard alloy drill bit body and a drill bit mounting seat, wherein the lower end of the drill bit mounting seat is fixedly connected with a connecting sleeve, the lower side of the connecting sleeve is open, the upper side wall in the connecting sleeve is fixedly connected with a screw rod, the upper end of the multi-tooth alloy drill bit body is provided with a rotating part, the upper end of the rotating part is fixedly connected with a limiting sheet, the upper end of the limiting sheet is provided with a connecting column, the inside of the connecting column is provided with a thread groove, the connecting column extends into the connecting sleeve, the screw rod is in threaded connection with the thread groove, the upper end of the connecting column is provided with a contact part, the contact part is circular, the upper side in the connecting sleeve is provided with an elastic element, the lower end of the elastic element is in contact with the contact part, the device can finish the dismounting and mounting of the multi-tooth alloy drill bit body by rotating the rotating part, the multi-tooth alloy drill bit body is convenient to replace, and the practicability is high.

Description

Multi-tooth hard alloy drill bit

Technical Field

The utility model relates to the technical field of alloy drill bits, in particular to a multi-tooth hard alloy drill bit.

Background

Carbide drill bit is a boring engineering equipment, is mostly applied to on the pile driver, and the drill bit uses after a period, can cause wearing and tearing, needs maintain or change the drill bit, and traditional pile driver is more troublesome to the dismantlement of drill bit, and is consuming time longer, influences work efficiency, when multiple tooth carbide drill bit uses a period to need change, leads to the user not convenient to change it to user's of not being convenient for use. Therefore, a multi-tooth cemented carbide drill for a pile driver is provided.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a multi-tooth cemented carbide drill to solve the problems of the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a multi-tooth hard alloy drill bit comprises a multi-tooth alloy drill bit body and a drill bit mounting seat, wherein the lower end of the drill bit mounting seat is fixedly connected with a connecting sleeve, the lower side of the connecting sleeve is open, the upper side wall in the connecting sleeve is fixedly connected with a screw rod, the upper end of the multi-tooth alloy drill bit body is provided with a rotating part, the upper end of the rotating part is fixedly connected with a limiting piece, the upper end of the limiting sheet is provided with a connecting column, the inside of the connecting column is provided with a thread groove, the thread groove is matched with the thread of the screw rod, the connecting column extends into the connecting sleeve, the screw is in threaded connection with the thread groove, the upper end of the connecting column is provided with a contact part which is round, and the diameter of the contact part is matched with the inner diameter of the connecting sleeve, an elastic element is arranged on the upper side in the connecting sleeve, and the lower end of the elastic element is in contact with the contact part.

Preferably, the head of the lower end of the multi-tooth alloy drill bit body is provided with a tooth-shaped structure, and the tooth-shaped structure is a conical tooth.

Preferably, the elastic element comprises a spring and a thrust ball bearing, the upper end of the spring is fixedly connected with the upper inner side wall of the connecting sleeve, the lower end of the spring is connected with the thrust ball bearing, and the lower side of the thrust ball bearing is in contact with the contact part.

Preferably, the side surface of the rotating part is provided with anti-slip corrugations.

Preferably, the upper surface of spacing piece is equipped with the boss, the lower extreme of spliced pole is connected with the upper surface fixed of boss, the direct and adapter sleeve's of boss internal diameter matches.

Compared with the prior art, the utility model has the beneficial effects that: an elastic element of a multi-tooth hard alloy drill bit is in contact with a contact part on a connecting column, the elastic element provides certain elastic force for the contact part to enable the thread engagement between a thread groove and a screw rod to be more compact, connection looseness can be effectively prevented, the connection tightness between the connecting column and the screw rod is ensured, and the reliability of the device in the using process is ensured, moreover, a tooth-shaped structure is designed as a conical tooth, so that when the multi-tooth alloy drill bit body is used, the conical tip of the tooth-shaped structure can be rapidly divided and tunneled, thereby effectively improving the drilling efficiency of the multi-tooth alloy drill bit body, when the multi-tooth alloy drill bit body needs to be replaced, a rotary part is clamped by using a clamp and then is rotated, the rotation of the rotary part directly drives a limiting piece to rotate, the rotation of the limiting piece directly drives the connecting column to rotate, the connecting column rotates relative to the screw rod to enable the connecting column and the screw rod to be separated from each other, the completion is to the dismantlement of multiple tooth alloy drill bit body, then with new multiple tooth alloy drill bit body install can, dismantle with the installation all more convenient, be convenient for change multiple tooth alloy drill bit body, the practicality is strong.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention

FIG. 3 is a schematic view of a multi-tooth alloy bit body and the upper end structure thereof according to the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the multi-tooth alloy drill bit comprises a 1-multi-tooth alloy drill bit body, a 2-drill bit mounting seat, a 3-connecting sleeve, a 4-screw, a 5-rotating part, a 6-limiting sheet, a 7-connecting column, an 8-thread groove, a 9-contact part, a 10-elastic element, a 1001-spring, a 1002-thrust ball bearing, an 11-boss and a 12-tooth structure.

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. 1-4, the present invention provides a technical solution: a multi-tooth hard alloy drill bit comprises a multi-tooth alloy drill bit body 1 and a drill bit mounting seat 2, wherein the lower end of the drill bit mounting seat 2 is fixedly connected with a connecting sleeve 3, the lower side of the connecting sleeve 3 is open, a screw rod 4 is fixedly connected with the upper side wall in the connecting sleeve 3, a rotating part 5 is arranged at the upper end of the multi-tooth alloy drill bit body 1, a limiting piece 6 is fixedly connected with the upper end of the rotating part 5, a connecting column 7 is arranged at the upper end of the limiting piece 6, a thread groove 8 is formed in the connecting column 7, the thread groove 8 is matched with the thread of the screw rod 4, the connecting column 7 extends into the connecting sleeve 3, the screw rod 4 is in threaded connection with the thread groove 8, a contact part 9 is arranged at the upper end of the connecting column 7, the contact part 9 is circular, the diameter of the contact part 9 is matched with the inner diameter of the connecting sleeve 3, and after installation, the side edge of the contact part 9 is attached to the inner side wall of the connecting sleeve 3, an elastic element 10 is arranged on the upper side inside the connecting sleeve 3, the lower end of the elastic element 10 is in contact with the contact part 9, when the multi-tooth alloy drill bit body 1 needs to be replaced, the rotary part 5 is clamped by using pliers and then is rotated, the rotary part 5 is rotated to directly drive the limiting sheet 6 to rotate, the rotary part 6 directly drives the connecting column 7 to rotate, the connecting column 7 rotates relative to the screw rod 4 to enable the connecting column 7 and the screw rod 4 to be separated from each other to finish the disassembly of the multi-tooth alloy drill bit body 1, then the new multi-tooth alloy drill bit body 1 is installed, the disassembly and the installation are both convenient, meanwhile, the elastic element 10 is in contact with the contact part 9 on the connecting column 7, the elastic element 10 provides certain elastic force for the contact part 9 to enable the thread occlusion between the thread groove 8 and the screw rod 4 to be more tight, can effectually prevent to connect lax, guarantee the compactness of being connected between spliced pole 7 and the screw rod 4, improve the reliability of this device.

Specifically, the lower end head of the multi-tooth alloy drill bit body 1 is provided with the tooth-shaped structure 12, the tooth-shaped structure 12 is a conical tooth, and the tooth-shaped structure 12 is designed as a conical tooth, so that when the multi-tooth alloy drill bit body 1 is used, a cone tip of the tooth-shaped structure 12 can be quickly cut and tunneled, and thus the drilling efficiency of the multi-tooth alloy drill bit body 1 is effectively improved.

Particularly, elastic element 10 includes spring 1001 and thrust ball bearing 1002, the last inside wall fixed connection of the upper end of spring 1001 and connecting sleeve 3, spring 1001 centers on in the outside of screw rod 4, the lower extreme of spring 1001 is connected with thrust ball bearing 1002, thrust ball bearing 1002's downside and contact site 9 contact, with the thread groove 8 of spliced pole 7 with screw rod 4 threaded connection back, spring 1001 provides certain elasticity to thrust ball bearing 1002, thrust ball bearing 1002's downside and the contact site 9 contact on the spliced pole 7, and then thrust ball bearing 1002 provides certain elasticity to contact site 9, make the screw thread interlock between thread groove 8 and the screw rod 4 inseparabler, can effectually prevent to connect slack, guarantee the compactness of being connected between spliced pole 7 and the screw rod 4, improve the reliability of this device, when contact site 9 and thrust ball bearing 1002 contact simultaneously, at spliced pole 7 pivoted in-process, spliced pole 7 drives contact site 9 and rotates, and thrust ball bearing 1002 set for just having faced direct contact between contact site 9 and the spring 1001, and then avoided the rotation of contact site 9 to drive the spring 1001 and rotate, guarantee the practicality of this device.

Particularly, the side of rotating part 5 is equipped with anti-skidding ripple, and anti-skidding ripple 11 can increase the frictional force between pliers and the rotating part 5, makes to twist of rotating part 5 and moves more conveniently, and then anti-skidding ripple's settlement provides certain facility to the installation of multiple tooth alloy bit body 1 and dismantlement more, is convenient for change multiple tooth alloy bit body 1.

Particularly, the upper surface of spacing piece 6 is equipped with boss 11, the lower extreme of spliced pole 7 and the last fixed surface of boss 11 are connected, the direct and connecting sleeve 3's of boss 11 internal diameter matches, with spliced pole 7 and 4 threaded connection of screw rod and screw up the back, spacing piece 6's upper surface and connecting sleeve 3's lower extreme contact, the boss 11 be in connecting sleeve 3 and the side of boss 11 and connecting sleeve 3's inside wall in close contact with this moment, can improve the steadiness of being connected between multi-tooth alloy drill bit 1 and the connecting sleeve 3, and then guaranteed the drive efficiency of slewing mechanism to multi-tooth alloy drill bit body 1 in the use, guaranteed the practicality of multi-tooth alloy drill bit body 1.

The working principle is as follows: in a normal state, the elastic element 10 is in contact with the contact part 9 on the connecting column 7, the elastic element 10 provides certain elastic force for the contact part 9, so that the thread engagement between the thread groove 8 and the screw rod 4 is more compact, the connection looseness can be effectively prevented, the connection tightness between the connecting column 7 and the screw rod 4 is ensured, and the reliability of the device in the use process is ensured, in addition, the tooth-shaped structure 12 is designed into a conical tooth, so that the conical tip of the tooth-shaped structure 12 can be quickly cut and tunneled when the multi-tooth alloy drill bit body 1 is used, the drilling efficiency of the multi-tooth alloy drill bit body 1 is effectively improved, when the multi-tooth alloy drill bit body 1 needs to be replaced, a clamp is used for clamping the rotating part 5, then the rotating part 5 is rotated, the rotating part 5 directly drives the limiting sheet 6 to rotate, the rotating of the limiting sheet 6 directly drives the connecting column 7 to rotate, the connecting column 7 rotates relative to the screw rod 4, so that the connecting column 7 and the screw rod 4 are separated from each other, the multi-tooth alloy drill bit body 1 is disassembled, then the new multi-tooth alloy drill bit body 1 is installed, the disassembly and the installation are both convenient, and the practicability is high.

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 many teeth carbide drill bit, includes many teeth carbide drill bit body (1) and drill bit mount pad (2), its characterized in that: the drill bit comprises a drill bit mounting seat (2), a connecting sleeve (3) is fixedly connected to the lower end of the drill bit mounting seat (2), the lower side of the connecting sleeve (3) is open, a screw rod (4) is fixedly connected to the inner upper side wall of the connecting sleeve (3), a rotating part (5) is arranged at the upper end of a multi-tooth alloy drill bit body (1), a limiting piece (6) is fixedly connected to the upper end of the rotating part (5), a connecting column (7) is arranged at the upper end of the limiting piece (6), a thread groove (8) is formed in the connecting column (7), the thread groove (8) is matched with the thread of the screw rod (4), the connecting column (7) extends into the connecting sleeve (3), the screw rod (4) is in threaded connection with the thread groove (8), a contact part (9) is arranged at the upper end of the connecting column (7), the contact part (9) is circular, and the diameter of the contact part (9) is matched with the inner diameter of the connecting sleeve (3), an elastic element (10) is arranged on the upper side of the interior of the connecting sleeve (3), and the lower end of the elastic element (10) is in contact with the contact part (9).

2. A multi-tooth cemented carbide drill bit according to claim 1, wherein: the multi-tooth alloy drill bit comprises a multi-tooth alloy drill bit body (1), wherein the head of the lower end of the multi-tooth alloy drill bit body (1) is provided with a tooth-shaped structure (12), and the tooth-shaped structure (12) is a conical tooth.

3. A multi-tooth cemented carbide drill bit according to claim 1, wherein: the elastic element (10) comprises a spring (1001) and a thrust ball bearing (1002), the upper end of the spring (1001) is fixedly connected with the upper inner side wall of the connecting sleeve (3), the lower end of the spring (1001) is connected with the thrust ball bearing (1002), and the lower side of the thrust ball bearing (1002) is in contact with the contact part (9).

4. A multi-tooth cemented carbide drill bit according to claim 1, wherein: the side surface of the rotating part (5) is provided with anti-skid corrugations.

5. A multi-tooth cemented carbide drill bit according to claim 1, wherein: the upper surface of spacing piece (6) is equipped with boss (11), the lower extreme of spliced pole (7) is connected with the upper surface fixed connection of boss (11), the internal diameter of the directness and connecting sleeve (3) of boss (11) matches.