CN211727609U

CN211727609U - Shock attenuation drill bit

Info

Publication number: CN211727609U
Application number: CN202020074296.2U
Authority: CN
Inventors: 黄挺
Original assignee: Shanghai Ruibaichi Industrial Co ltd
Current assignee: Shanghai Ruibaichi Industrial Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-23
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a shock-absorbing drill bit, which comprises a mounting end and a drill bit end elastically connected with the mounting end through a buffer piece, wherein the buffer piece comprises a connecting cylinder fixedly arranged on the buffer piece and a driving part movably connected with the connecting cylinder, a plurality of connecting transmission grooves are uniformly arranged on the inner wall of the connecting cylinder, a buffer spring is fixedly arranged and connected at the end part of each connecting transmission groove, a matching rod is fixedly connected at the end part of the buffer spring, the matching rod is jointed with the inner wall of the connecting transmission groove and is in sliding contact with the inner wall of the connecting transmission groove, the matching rod is fixedly connected with the driving part, and the driving part is arranged on the inner wall of the connecting cylinder in a sliding way, so that the shock-absorbing drill bit has reasonable structural design, utilizes the elastic telescopic buffer piece to absorb vibration energy in the operation process of the drill bit, has, and simultaneously, the service life of the drill bit driving piece electric drill is prolonged.

Description

Shock attenuation drill bit

Technical Field

The utility model relates to a shock attenuation drill bit technical field especially relates to a shock attenuation drill bit.

Background

The electric drill is a drilling machine using electricity as power. The electric tool is a conventional product in the electric tools and is also a product of the electric tools with the largest demand. The annual production and sale quantity accounts for 35 percent of the China electric tools. The working principle of the electric drill is that a motor rotor of an electromagnetic rotary type or electromagnetic reciprocating type small-capacity motor does magnetic field cutting work-doing operation, and the operation device is driven by a transmission mechanism to drive a gear to increase the power of a drill bit, so that the drill bit scrapes the surface of an object and better penetrates the object.

But current drill bit all directly inserts and establishes on the electric drill body and fix, and under the great condition of drilling object hardness, the drill bit vibration is more serious, causes the skew of drill bit easily, and high frequency vibration has still reduced the life of electric drill simultaneously, has certain defect.

To this end, we propose a vibration damping drill bit.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shock attenuation drill bit, aim at can reduce the vibration of drill bit in the course of the work, guarantees the accuracy of drilling, prolongs the life of electric drill simultaneously.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the utility model provides a shock attenuation drill bit, including the installation end and through the bolster with installation end elastic connection's drill bit end, the bolster is including fixed setting up connecting cylinder on the bolster and with connecting cylinder swing joint's drive division, evenly be provided with a plurality of connection transmission grooves on the connecting cylinder inner wall, it is connected with buffer spring to connect transmission groove tip fixed mounting, buffer spring tip fixedly connected with matches the pole, match the pole with it laminates and sliding contact to connect transmission inslot wall, match the pole with drive division fixed connection, the drive division slides and sets up on the connecting cylinder inner wall.

Preferably, in the above vibration damping drill, the mounting end and the connecting cylinder are integrally formed, and the drill end and the driving portion are integrally formed.

Based on above-mentioned technical characteristics, installation end and connecting cylinder integrated into one piece, drill bit end and drive division integrated into one piece have strengthened the mechanical strength of shock attenuation drill bit, have prolonged the life of shock attenuation drill bit.

Preferably, in the above vibration damping drill bit, an annular stop collar for preventing the driving part from slipping out is arranged at one end of the connecting cylinder, which is far away from the mounting end.

Based on above-mentioned technical characteristics, the setting of annular stop collar can avoid the drive division roll-off in following the connecting cylinder effectively, has guaranteed the normal use of shock attenuation drill bit.

Preferably, in the above vibration damping drill bit, the edge of the annular stop collar is chamfered, and a buffer protection pad contacting the driving part is disposed on an inner end surface of the annular stop collar.

Based on above-mentioned technical characteristics, the setting of buffering protection pad can effectually reduce the collision dynamics between drive division and the annular stop collar, has played certain guard action.

Preferably, in the above-mentioned vibration damping drill bit, the buffer spring is attached to and in sliding contact with an inner wall of the connecting transmission groove.

Based on the technical characteristics, the buffer spring is attached to and in sliding contact with the inner wall of the connecting transmission groove, so that the buffer spring can be effectively prevented from being excessively twisted, and the service life of the buffer spring is greatly prolonged.

Preferably, in the above shock-absorbing drill bit, an installation groove is provided on the circumferential surface of the annular limiting sleeve, and two semi-arc transparent protective covers are installed in the installation groove in a magnetic adsorption manner.

Based on the technical characteristics, the transparent protective cover can effectively block the splashed fragments in the working process of the drill bit, and plays a certain role in protection.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, utilize elastic telescopic's bolster to carry out the absorption of drill bit function in-process vibration energy, have good shock attenuation effect, not only promote the degree of accuracy of drilling, still prolonged the life of drill bit driving piece electric drill simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic view of the corrosion structure of the transparent protective cover of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an installation end; 2. a buffer member; 3. drilling a head end; 4. a connecting cylinder; 5. a drive section; 6. connecting the transmission groove; 7. a buffer spring; 8. a matching rod; 9. an annular stop collar; 10. a buffer protection pad; 11. mounting grooves; 12. a transparent shield.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment is a vibration-damping drill bit, including a mounting end 1 and a drill bit end 3 elastically connected to the mounting end 1 through a buffer member 2, the buffer member 2 includes a connecting cylinder 4 fixedly disposed on the buffer member 1 and a driving portion 5 movably connected to the connecting cylinder 4, the mounting end 1 is integrally formed with the connecting cylinder 4, the drill bit end 3 is integrally formed with the driving portion 5, so as to enhance the mechanical strength of the vibration-damping drill bit and prolong the service life of the vibration-damping drill bit, an annular stop collar 9 for preventing the driving portion 5 from slipping out is disposed at an end of the connecting cylinder 4 away from the mounting end 1, the annular stop collar 9 is disposed to effectively prevent the driving portion 5 from slipping out of the connecting cylinder 4, thereby ensuring the normal use of the vibration-damping drill bit, the edge of, the inner end face of the annular limiting sleeve 9 is provided with a buffering protection pad 10 which is in contact with the driving part 5, the buffering protection pad 10 is arranged, the collision force between the driving part 5 and the annular limiting sleeve 9 can be effectively reduced, a certain protection effect is achieved, the side circumferential face of the annular limiting sleeve 9 is provided with a mounting groove 11, two semi-arc-shaped transparent protective covers 12 are arranged in the mounting groove 11 in a magnetic adsorption mode, the transparent protective covers 12 are arranged, fragments splashed in the working process of a drill bit can be effectively blocked, a certain protection effect is achieved, the inner wall of the connecting cylinder 4 is uniformly provided with a plurality of connecting transmission grooves 6, the end parts of the connecting transmission grooves 6 are fixedly and fixedly connected with buffering springs 7, the buffering springs 7 are attached to and in sliding contact with the inner wall of the connecting transmission grooves 6, the buffering springs 7 are attached to and in sliding contact with the inner wall of the connecting, greatly prolonged buffer spring 7's life, buffer spring 7 tip fixedly connected with matches pole 8, matches pole 8 and connects 6 inner walls of transmission groove laminating and sliding contact,

matches pole

8 and 5 fixed connection of drive division, and 5 slip settings of drive division are on connecting cylinder 4 inner walls.

The utility model discloses a concrete implementation, when using, the drill bit is when drilling, and the drill bit end 3 that buffer spring 7 can drive carries out concertina movement to absorb vibration energy in buffer spring 7, played absorbing effect. The utility model has the advantages of reasonable design, utilize elastic telescopic's bolster 2 to carry out the absorption of drill bit function in-process vibration energy, have good shock attenuation effect, not only promote the degree of accuracy of drilling, still prolonged the life of drill bit driving piece electric drill simultaneously.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A shock absorbing drill bit characterized by: including installation end (1) and through bolster (2) with installation end (1) elastic connection's drill bit end (3), bolster (2) are in including fixed setting connecting cylinder (4) on installation end (1) and with connecting cylinder (4) swing joint's drive division (5), evenly be provided with a plurality of connection drive grooves (6) on connecting cylinder (4) inner wall, connect drive groove (6) tip fixed mounting and be connected with buffer spring (7), buffer spring (7) tip fixedly connected with matches pole (8), match pole (8) with connect drive groove (6) inner wall laminating and sliding contact, match pole (8) with drive division (5) fixed connection, drive division (5) slide to set up on connecting cylinder (4) inner wall.

2. A vibration damping drill bit as defined in claim 1, wherein: the mounting end (1) and the connecting cylinder (4) are integrally formed, and the drill bit end (3) and the driving part (5) are integrally formed.

3. A vibration damping drill bit as defined in claim 1, wherein: the connecting cylinder (4) is far away from one end of the mounting end (1) and is provided with an annular limiting sleeve (9) used for preventing the driving part (5) from sliding out.

4. A vibration damping drill bit as defined in claim 3, wherein: the edge of the annular limiting sleeve (9) is subjected to chamfering treatment, and a buffering protection pad (10) in contact with the driving part (5) is arranged on the inner end face of the annular limiting sleeve (9).

5. A vibration damping drill bit as defined in claim 1, wherein: the buffer spring (7) is attached to the inner wall of the connecting transmission groove (6) and in sliding contact with the inner wall of the connecting transmission groove.

6. A vibration damping drill bit as defined in claim 3, wherein: the annular limiting sleeve (9) is provided with an installation groove (11) on the side circumferential surface, and two semi-arc transparent protective covers (12) are arranged in the installation groove (11) in a magnetic adsorption mode.