CN219472038U - Connecting structure of drill bit - Google Patents

Abstract

The application relates to a connection structure of drill bit, including the electric hammer, peg graft on the interface end of electric hammer has the connector, be provided with coupling assembling on the connector, coupling assembling including fixed mounting in connecting pipe on the connector, the inside slidable mounting of connecting pipe has the spliced pole, square root groove has been seted up on the one end of spliced pole, the connecting pipe keep away from fixed mounting has the extension board that is convex on the one end of connector. This connection structure of drill bit through setting up through extension board, axis of rotation and spout interconnect between connector and the spliced pole for the spliced pole can slide the upset for the connector, realizes replacing bi-polar position, and the different drill bits of convenient to use connect, compares in current single adaptation, has better practicality, through setting up stop collar, card arc, screw hole and bolt cooperation, makes the spliced pole stability under the adjustment good, thereby has improved the practicality of device.

Description

Connecting structure of drill bit

Technical Field

The application relates to the technical field of square drill bits, in particular to a connecting structure of a drill bit.

Background

The drill bit is a main tool for breaking rock in the drilling process, a well bore is formed by breaking rock by the drill bit, and the length of time it takes for a well bore to be formed is related to the degree of mutual matching between the drill bit and the stratum in addition to the characteristics of the stratum rock to be drilled and the performance of the drill bit itself.

The utility model relates to a square connecting structure of a drilling machine drill bit, which is disclosed in Chinese patent publication No. CN214867493U and consists of a drilling machine bottom end, a drilling machine fixed driving end and a connecting mechanism, wherein the drilling machine fixed driving end is arranged on a base at the drilling machine bottom end through a connecting rod, a sleeve is arranged on the drilling machine fixed driving end, the connecting mechanism is arranged in the sleeve of the drilling machine fixed driving end through a rotating shaft, a knife edge connecting part and a driving connecting part are arranged in the connecting mechanism, one end of the knife edge connecting part is provided with a square groove opening, the other end of the knife edge connecting part is provided with an external thread opening, one end of the driving connecting part is provided with a square bump, the other end of the driving connecting part is provided with a connecting block, the front end of the driving connecting part is connected with the knife edge connecting part through the square bump and the square groove opening, and the rear end of the driving connecting part is arranged on a connecting disc through the connecting block. The utility model is convenient for the installation and the disassembly of the drilling machine by the knife edge connecting part and the driving connecting part, and the square groove opening and the square convex block are utilized to facilitate the replacement of the drill bit.

The square connecting structure of the drilling machine drill bit provided by the utility model indicates that the square drill bit is connected relative to electric hammers with different shapes and calibers by arranging the connecting piece, so that the square drill bit is convenient to install, but the connecting structure for completing the connection still has single directivity, is only suitable for the square drill bit, and is commonly used for three types of drill bits, namely square root, hexagonal root and round root.

Disclosure of Invention

To the not enough of prior art, this application provides a connection structure of drill bit, can adjust advantages such as adaptation multiple type drill bit connection when possessing the square drill bit of adaptation and connect.

In order to achieve the above purpose, the present application provides the following technical solutions: the connecting structure of the drill bit comprises an electric hammer, wherein a connector is inserted into an interface end of the electric hammer, and a connecting assembly is arranged on the connector;

the connecting assembly comprises a connecting pipe fixedly mounted on the connecting head, a connecting column is slidably mounted in the connecting pipe, a square root groove is formed in one end of the connecting column, an arc-shaped extending plate is fixedly mounted at one end, far away from the connecting head, of the connecting pipe, a sliding groove is formed in one side face, facing the connecting column, of the extending plate, a rotating shaft is fixedly mounted on the outer side of the connecting column, and the rotating shaft is slidably connected with the sliding groove.

Further, the stop collar is installed to the external screw thread of connecting pipe, the stop collar keep away from rotate on the one end of connector and install the stop collar, the stop collar is located the spliced pole extends to the outside one end of connecting pipe outside.

Further, a clamping arc is fixedly installed on the inner side wall of the limit ring, the clamping arc is fixedly installed on the inner side of the limit ring in an arc shape, and the arc diameter of the clamping arc corresponds to the connecting column.

Further, the rotating shaft is also rotatably connected to the sliding groove.

Further, a hexagonal root groove is formed in one end, far away from the square root groove, of the connecting column.

Further, fixed lugs are fixedly arranged on the limiting rings, and bolts extending to the inner sides of the limiting rings are arranged on the fixed lugs in a threaded mode.

Further, threaded holes are formed in the outer walls of the two ends of the connecting column, and the bolts correspond to the threaded holes.

Further, a groove is formed in the outer portion of the connector, and the groove corresponds to the protrusion of the interface end of the electric hammer.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this connection structure of drill bit through setting up through extension board, axis of rotation and spout interconnect between connector and the spliced pole for the spliced pole can slide the upset for the connector, realizes replacing bi-polar position, and the different drill bits of convenient to use connect, compares in current single adaptation, has better practicality, through setting up stop collar, card arc, screw hole and bolt cooperation, makes the spliced pole stability under the adjustment good, thereby has improved the practicality of device.

Drawings

FIG. 1 is a front view of the present application;

FIG. 2 is a cross-sectional view of a connecting tube of the present application;

FIG. 3 is a side view of the stop collar of the present application;

fig. 4 is a side view of the connector of the present application.

In the figure: 1. an electric hammer; 2. a connector; 3. a connecting pipe; 4. an extension plate; 5. a connecting column; 6. a chute; 7. a rotating shaft; 8. hexagonal root groove; 9. a square root groove; 10. a limit sleeve; 11. a limit ring; 12. arc clamping; 13. a threaded hole; 14. a fixed ear; 15. a bolt; 16. a groove.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1-4, a connection structure of a drill bit in this embodiment includes an electric hammer 1, a connector 2 is inserted into an interface end of the electric hammer 1, the electric hammer 1 is a conventional common round-root electric hammer for connecting the drill bit, wherein the connector 2 is round and corresponds to the interface of the electric hammer 1, and is used for completing the switching of the drill bit relative to the electric hammer 1, the assembly mode is the prior art, and details are omitted below, and a connection assembly is provided on the connector 2 and is used for adjusting and connecting square-root drill bits and hexagonal-root drill bits.

It should be noted that, the outside of the connector 2 is provided with a groove 16, the groove 16 corresponds to the protrusion of the interface end of the electric hammer 1, and is used for limiting the connection rotation of the connector 2 relative to the electric hammer 1, so as to ensure the installation stability of the connector 2.

Embodiment one: referring to fig. 1-4, in this embodiment, the connection assembly includes a connection pipe 3 fixedly mounted on a connection head 2, a connection post 5 is slidably mounted in the connection pipe 3, a square root groove 9 is formed at one end of the connection post 5, and the connection of the square root groove 9 on the connection post 5 relative to the square drill bit can be completed by using the square root groove 9 of the square drill bit inserted in the connection post 5.

It should be noted that, stop collar 10 is installed to the external screw thread of connecting pipe 3, stop collar 11 is installed in the rotation on the one end that stop collar 10 kept away from in connector 2, stop collar 11 is located the one end outside that spliced pole 5 extends to connecting pipe 3 outside, fixed mounting has card arc 12 on the inside wall of stop collar 11, card arc 12 is convex fixed mounting in the inboard of stop collar 11, and the circular arc diameter of card arc 12 corresponds with spliced pole 5, can be through card arc 12 activity to the outside of spliced pole 5, thereby restrict the activity of spliced pole 5, thereby can make things convenient for the connection of square drill bit.

Embodiment two: referring to fig. 1 to 4, it should be noted that, an arc-shaped extension plate 4 is fixedly installed at one end of the connecting tube 3 far away from the connector 2, the gap between the extension plate 4 and two clamping arcs 12 corresponds to each other, so that the clamping arcs 12 can move along the interval between the two extension plates 4, a sliding groove 6 is formed in one side surface of the extension plate 4, facing the connecting column 5, of the extension plate 6, the direction of the sliding groove 6 and the connecting tube 3 is horizontal, a rotating shaft 7 is fixedly installed at the outer side of the connecting column 5, the rotating shaft 7 is slidably connected with the sliding groove 6, and meanwhile, the rotating shaft 7 is rotatably connected with the sliding groove 6, so that the connecting column 5 can slide and extend relative to the connecting tube 3, and meanwhile, when the connecting column 5 slides and extends to the outside of the connecting tube 3, the connecting column 5 can be rotated.

In order to improve the connection of the connection structure to different drill bits, a hexagonal root groove 8 is formed at one end of the connection post 5 far away from the square root groove 9 in the embodiment, but the connection structure is not limited to the hexagonal root groove 8, and may be a triangular root groove.

In this embodiment, fixed lug 14 is fixedly installed on stop collar 11, bolt 15 extending to the inner side of stop collar 11 is installed on fixed lug 14 by screw thread, threaded hole 13 is all offered on the outer wall of both ends of spliced pole 5, bolt 15 and threaded hole 13 are corresponding, can rotate in threaded hole 13 through bolt 15 to accomplish the activity restriction to spliced pole 5, realize adjusting the coupling assembling and connect to different drills.

The working principle of the embodiment is as follows:

when installing on round hole electric hammer 1 to square drill bit, accomplish the assembly connection through passing through prior art with connector 2 and electric hammer 1, make the outside connecting pipe 3 of connector 2 and the spliced pole 5 in the connecting pipe 3 towards the electric hammer 1 outside, can directly peg graft square root groove 9 inside on spliced pole 5 with square drill bit, simultaneously through rotating stop collar 10, make stop collar 10 along the outside of connecting pipe 3 towards the one end activity of spliced pole 5 connection square root, stop collar 11 on stop collar 10 laminating in spliced pole 5 through clamping arc 12 this moment, make stop collar 11 rotate for stop collar 10 simultaneously, stop collar 11 slides for spliced pole 5, treat stop collar 10 movable to spliced pole 5 tip back, make the rotation of spliced pole 5 receive clamping arc 12's butt restriction, and can be through rotatory tightening bolt 15, and accomplish the connection of square drill bit through bolt 15 threaded connection in screw hole 13, when needs the installation hexagonal root drill bit, can drive axis of rotation 7 at the inside of spout 6 and slide to break away from connecting pipe 3 and clamping arc 12 through clamping arc 12, can make the inside joint post 5 rotate to replace the connecting pipe 3 to realize the rotation of connecting pole 5 and replace the connecting pole 5 to rotate to the inside through rotating the connecting pipe 3, can realize the completion process to the connecting pipe 3 is the connecting pipe is replaced to the connecting pole 5.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims (8)

1. The utility model provides a connection structure of drill bit, includes electric hammer (1), its characterized in that: a connector (2) is inserted into the interface end of the electric hammer (1), and a connecting assembly is arranged on the connector (2);

the connecting assembly comprises a connecting pipe (3) fixedly mounted on the connecting head (2), a connecting column (5) is mounted in the connecting pipe (3) in a sliding manner, a square root groove (9) is formed in one end of the connecting column (5), an arc-shaped extending plate (4) is fixedly mounted on one end of the connecting head (2) in a manner away from the connecting pipe (3), a sliding groove (6) is formed in one side face of the connecting column (5) in a direction towards the extending plate (4), a rotating shaft (7) is fixedly mounted on the outer side of the connecting column (5), and the rotating shaft (7) is connected with the sliding groove (6) in a sliding manner.

2. A drill bit connection according to claim 1, wherein: stop collar (10) are installed to external screw thread of connecting pipe (3), stop collar (11) are installed in rotation on the one end that stop collar (10) were kept away from connector (2), stop collar (11) are located spliced pole (5) extend to connecting pipe (3) outside one end.

3. A drill bit connection according to claim 2, wherein: the inner side wall of the limit ring (11) is fixedly provided with a clamping arc (12), the clamping arc (12) is fixedly arranged on the inner side of the limit ring (11) in an arc shape, and the arc diameter of the clamping arc (12) corresponds to the connecting column (5).

4. A drill bit connection according to claim 3, wherein: the rotating shaft (7) is also rotatably connected with the sliding groove (6).

5. The connection structure of a drill bit according to claim 4, wherein: and a hexagonal root groove (8) is formed in one end, far away from the square root groove (9), of the connecting column (5).

6. The connection structure of a drill bit according to claim 5, wherein: the limiting ring (11) is fixedly provided with a fixing lug (14), and the fixing lug (14) is provided with a bolt (15) extending to the inner side of the limiting ring (11) in a threaded manner.

7. The connection structure of a drill bit according to claim 6, wherein: threaded holes (13) are formed in the outer walls of the two ends of the connecting column (5), and the bolts (15) correspond to the threaded holes (13).

8. The connection structure of a drill bit according to claim 7, wherein: the outside of connector (2) has offered recess (16), recess (16) with electric hammer (1) interface end is protruding corresponding.