CN216043537U

CN216043537U - Hole expanding type mixed drill bit

Info

Publication number: CN216043537U
Application number: CN202122656572.3U
Authority: CN
Inventors: 刘明海
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-15
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a reaming type hybrid drill bit, which relates to the technical field of drill bits and comprises a hybrid drill bit main body, wherein the hybrid drill bit main body comprises a guide drill bit, the top of the hybrid drill bit main body is fixedly connected with a connector, the top of the guide drill bit is provided with a connecting device, and an adjustable drill bit device is arranged inside the hybrid drill bit main body. According to the utility model, through the matching of the base, the support rod, the first gear, the second gear, the transmission gear, the motor, the toothed bar, the movable drill bit and the rotating shaft, the motor is started, so that the output shaft of the motor drives the transmission gear to rotate, the second gear is driven to rotate, the first gear drives the toothed bar to move, the toothed bar drives the rotary drill bit to move through the rotating shaft at the bottom, the size of the drill bit opening is changed by moving the position of the drill bit, the problem that the drill bit needs to be replaced when the size of the drill bit is changed in the conventional device is solved, and the working efficiency of the device is reduced.

Description

Hole expanding type mixed drill bit

Technical Field

The utility model relates to the technical field of drill bits, in particular to a hole expanding type mixed drill bit.

Background

Along with the increase of the construction strength of roads, energy sources and infrastructures, in the process of energy mining and underground infrastructure construction, the reaming bit has wider and wider application prospect due to the structural characteristics of the reaming bit, in the application of roadway support, pipeline laying in infrastructure projects and the like, a reaming drilling tool is required to be used for drilling holes due to the particularity of geological structures and construction, in the drilling holes, a guide hole is drilled by the guide bit, the positioning is realized, the reaming bit is convenient to use for reaming, and the smooth drilling is favorably realized.

The following problems exist in the prior art:

1. by adopting a processing method of reaming by using a large-size common drill bit on the basis of a small hole, the large-size drill bit needs to be gradually replaced until the hole diameter meets the requirement, and a complete set of drill bits is generally required to be equipped, so that more troubles are brought to work, and the working efficiency is low;

2. in the drilling process, the guide drill bit plays the roles of drilling and guiding at the same time, so that the drill bit is abraded or directly damaged due to complex geological structure and different use environments, the joint is easily deformed and damaged in the drilling hole, and the problems of inconvenient replacement of the drill bit and low drilling efficiency exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hole expanding type mixed drill bit, which aims to have the capacity of adjusting the size of the drill bit and solve the problems that the drill bit is frequently replaced to match different requirements and the working efficiency is reduced; wherein another purpose is in order to solve the problem that the drill bit junction is yielding the damage easily to reach the effect of the hardness of reinforcing junction.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a reaming formula mixes drill bit, includes mixed drill bit main part, mix drill bit main part including the pilot bit, the top fixedly connected with connector of mixed drill bit main part, the top of pilot bit is provided with connecting device, the inside of mixing drill bit main part is provided with adjustable drill bit device, adjustable drill bit device is including the base, the fixed section of thick bamboo of bottom fixed connection of base, the top fixedly connected with fixed plate of base, connecting device is including the fixed column, the bottom of fixed column and the top fixed connection of pilot bit.

The technical scheme of the utility model is further improved as follows: the top fixedly connected with bracing piece of base, the surface swing joint of bracing piece has first gear, the top fixedly connected with second gear of first gear, the surface swing joint of second gear has drive gear, drive gear's inner wall fixedly connected with motor.

The technical scheme of the utility model is further improved as follows: one side of motor and one side fixed connection of bracing piece, the surface swing joint of first gear has the ratch, the one end swing joint of ratch has the activity drill bit, the bottom fixedly connected with pivot of activity drill bit, the bottom of pivot and the top swing joint of base.

By adopting the technical scheme, the base, the supporting rod, the first gear, the second gear, the transmission gear, the motor, the toothed bar, the movable drill bit and the rotating shaft in the scheme are matched together, so that the size of the drill bit is changed.

The technical scheme of the utility model is further improved as follows: a first threaded hole is formed in one side of the fixing column, and an embedded groove plate is movably connected to the top of the fixing column.

The technical scheme of the utility model is further improved as follows: the outer surface of the embedded groove plate is fixedly connected with the inner wall of the fixed cylinder, and a second threaded hole is formed in the outer wall of the fixed cylinder.

Adopt above-mentioned technical scheme, fixed column, first screw hole, gomphosis frid, fixed section of thick bamboo and second screw hole in this scheme cooperate jointly, fix the pilot bit.

The technical scheme of the utility model is further improved as follows: and the inner walls of the first threaded hole and the second threaded hole are movably connected with bolts.

The technical scheme of the utility model is further improved as follows: the top fixedly connected with fore-set of bracing piece, the top and the connector swing joint of fore-set.

By adopting the technical scheme, the guide drill bit and the mixed drill bit main body are fixedly connected through the bolt in the scheme.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that:

1. the utility model provides a hole expanding type mixed drill bit, which adopts the matching among a base, a supporting rod, a first gear, a second gear, a transmission gear, a motor, a toothed bar, a movable drill bit and a rotating shaft, wherein the motor is started, so that an output shaft of the motor drives the transmission gear to rotate, the second gear is driven to rotate, the first gear drives the toothed bar to move, the toothed bar drives a rotary drill bit to move through the rotating shaft at the bottom, the size of a hole formed by the drill bit is changed by moving the position of the movable drill bit, the problem that the drill bit needs to be replaced when the size of the drill bit is changed in the conventional device is solved, and the working efficiency of the device is reduced.

2. The utility model provides a hole expanding type mixed drill bit, which is characterized in that a fixing column, a first threaded hole, an embedded groove plate, a fixing cylinder, a bolt and a second threaded hole are matched, the fixing column is inserted into the embedded groove plate, a bulge on the fixing column is inserted into the embedded groove plate, the stability of a device is improved, the hardness of a joint of a guide drill bit is enhanced, the joint is prevented from being deformed in drilling, the joint is difficult to take down during replacement, the device is fixed by the bolt, the drill bit is prevented from falling off, and the device is stabilized.

Drawings

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

FIG. 2 is a schematic perspective sectional view of the adjustable structure apparatus of the present invention;

FIG. 3 is a perspective view of the structural interface of the present invention;

fig. 4 is a perspective view of the structure-fixing barrel of the present invention.

In the figure: 1. a hybrid drill bit body; 2. an adjustable drill bit device; 3. a connecting device; 4. a pilot bit; 5. a connector; 6. a top pillar; 21. a fixing plate; 22. a movable drill bit; 23. a rotating shaft; 24. a motor; 241. a transmission gear; 25. a support bar; 26. a second gear; 27. a first gear; 28. a rack bar; 29. a base; 31. fixing a column; 32. a first threaded hole; 33. a bolt; 34. a fixed cylinder; 35. embedding the groove plate; 36. and a second threaded hole.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-4, the present invention provides a hole expanding type hybrid drill, a hybrid drill main body 1, the hybrid drill main body 1 includes a pilot drill 4, a connector 5 is fixedly connected to the top of the hybrid drill main body 1, a connecting device 3 is arranged at the top of the pilot drill 4, an adjustable drill 2 is arranged inside the hybrid drill main body 1, the adjustable drill 2 includes a base 29, a fixing cylinder 34 is fixedly connected to the bottom of the base 29, a fixing plate 21 is fixedly connected to the top of the base 29, the connecting device 3 includes a fixing column 31, the bottom of the fixing column 31 is fixedly connected to the top of the pilot drill 4, a support rod 25 is fixedly connected to the top of the base 29, a first gear 27 is movably connected to the outer surface of the support rod 25, a second gear 26 is fixedly connected to the top of the first gear 27, a transmission gear 241 is movably connected to the outer surface of the second gear 26, inner wall fixedly connected with motor 24 of drive gear 241, one side of motor 24 and one side fixed connection of bracing piece 25, the surface swing joint of first gear 27 has ratch 28, the one end swing joint of ratch 28 has movable drill bit 22, the bottom fixedly connected with pivot 23 of movable drill bit 22, the bottom of pivot 23 and the top swing joint of base 29, start through motor 24, make the output shaft of motor 24 drive gear 241 and rotate, it rotates to drive second gear 26, make first gear 27 drive ratch 28 remove, ratch 28 drives movable drill bit 22 and removes through the pivot 23 of bottom, position through removing movable drill bit 22, change the size of drill bit trompil, solve the problem that current device need change the drill bit when changing the drill bit size, make the work efficiency of device further improve.

Example 2

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a first threaded hole 32 is formed in one side of the fixing column 31, an embedding groove plate 35 is movably connected to the top of the fixing column 31, the outer surface of the embedding groove plate 35 is fixedly connected with the inner wall of the fixing cylinder 34, a second threaded hole 36 is formed in the outer wall of the fixing cylinder 34, the fixing column 31 is inserted into the embedding groove plate 35, and a protrusion on the fixing column 31 is inserted into the embedding groove plate 35, so that the stability of the device is improved, the hardness of the joint of the guide drill 4 is enhanced, deformation of the joint due to the fact that the joint is deformed in drilling is prevented, and the problem that the connecting column is difficult to take down during replacement is solved.

Example 3

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the inner walls of the first threaded hole 32 and the second threaded hole 36 are movably connected with a bolt 33, the top of the support rod 25 is fixedly connected with the top pillar 6, the top of the top pillar 6 is movably connected with the connector 5, the bolt 33 is used for fixing the device, the drill bit is prevented from falling, and the device is further stabilized.

The working principle of the reamer type hybrid drill bit will be described in detail below.

As shown in fig. 1-4, the motor 24 is first started, so that the output shaft of the motor 24 drives the transmission gear 241 to rotate, the second gear 26 is driven to rotate, the first gear 27 drives the rack bar 28 to move, the rack bar 28 drives the movable drill 22 to move through the rotating shaft 23 at the bottom, the size of the drill hole is changed by moving the position of the movable drill 22, the problem that the drill needs to be replaced when the size of the drill is changed in the conventional device is solved, the working efficiency of the device is improved, the fixing column 31 is inserted into the embedded groove plate 35, the protrusion on the fixing column 31 is inserted into the embedded groove plate 35, the stability of the device is improved, the hardness of the joint of the guide drill 4 is enhanced, the joint is prevented from being deformed during drilling, the joint is difficult to take down during replacement, the bolt 33 is used for fixing the device, and the drill is prevented from falling down, and a stabilizing device.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a reamer formula mixes drill bit, includes mixed drill bit main part (1), mixed drill bit main part (1) is including pilot bit (4), the top fixedly connected with connector (5) of mixed drill bit main part (1), its characterized in that: the top of the guide drill bit (4) is provided with a connecting device (3), and an adjustable drill bit device (2) is arranged inside the mixed drill bit main body (1);

the adjustable drill bit device (2) comprises a base (29), the bottom of the base (29) is fixedly connected with a fixed cylinder (34), and the top of the base (29) is fixedly connected with a fixed plate (21);

the connecting device (3) comprises a fixing column (31), and the bottom of the fixing column (31) is fixedly connected with the top of the guide drill bit (4).

2. A reamer hybrid drill bit according to claim 1, wherein: the top fixedly connected with bracing piece (25) of base (29), the surface swing joint of bracing piece (25) has first gear (27), the top fixedly connected with second gear (26) of first gear (27), the surface swing joint of second gear (26) has drive gear (241), the inner wall fixedly connected with motor (24) of drive gear (241).

3. A reamer mixing bit according to claim 2, wherein: one side of motor (24) and one side fixed connection of bracing piece (25), the surface swing joint of first gear (27) has ratch (28), the one end swing joint of ratch (28) has activity drill bit (22), the bottom fixedly connected with pivot (23) of activity drill bit (22), the bottom of pivot (23) and the top swing joint of base (29).

4. A reamer hybrid drill bit according to claim 1, wherein: one side of the fixed column (31) is provided with a first threaded hole (32), and the top of the fixed column (31) is movably connected with an embedded groove plate (35).

5. A reamer hybrid drill bit according to claim 4, wherein: the outer surface of the embedding groove plate (35) is fixedly connected with the inner wall of the fixed cylinder (34), and a second threaded hole (36) is formed in the outer wall of the fixed cylinder (34).

6. A reamer hybrid drill bit according to claim 5, wherein: and the inner walls of the first threaded hole (32) and the second threaded hole (36) are movably connected with bolts (33).

7. A reamer hybrid drill bit according to claim 3, wherein: the top fixedly connected with fore-set (6) of bracing piece (25), the top and connector (5) swing joint of fore-set (6).