Novel high-air-pressure single-eccentric drilling tool

Abstract

The utility model relates to the technical field of drilling tools, and discloses a novel high-air-pressure single-eccentric drilling tool which comprises a main body mechanism, and a heat dissipation mechanism is arranged in the main body mechanism. The main body mechanism comprises a centralizer, a fixing seat is fixedly connected to the lower portion of the centralizer, a drill bit body is connected to the interior of the fixing seat in a threaded mode, and an eccentric sleeve is connected to the surface of the lower portion of the drill bit body in a clamped mode. According to the novel high-wind-pressure single-eccentric drilling tool, a threaded groove formed in the top end of the drill bit body is aligned with a threaded groove formed in the inner wall of the fixing base, the drill bit body is rotated to tightly connect the drill bit body with the fixing base, and then two bolts are sequentially placed into mounting holes formed in the left side and the right side of the fixing base; and a bolt is rotated to fix the drill bit body in the fixing seat, so that the connection stability of the drill bit body and the fixing seat is improved, the drill bit body is more convenient and faster to mount, and the drill bit body is prevented from loosening in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a novel high-wind pressure single-eccentric drilling tool. Background Art

[0002] An eccentric drill bit is a drill tool whose drill end has a certain eccentric distance relative to the main shaft. This design makes the drill bit produce eccentric motion when rotating. An eccentric drill bit usually consists of an extension rod with an eccentric mandrel and a series of drill bits. Due to its unique structure, the eccentric drill bit can complete some drilling operations that traditional tools cannot complete during processing. The appearance of the eccentric drill bit is similar to a combination of a traditional extension rod and a drill bit, but unlike the traditional drill bit, the drill end of the eccentric drill bit has a certain eccentric distance relative to the main shaft. The eccentric drill bit is suitable for drilling operations with special needs. It can be used to process parts with complex shapes such as connecting rods, and can also be used for drilling operations with complex terrain. In addition, the eccentric drill bit can also be used in decorative processes, such as making wood carvings. The existing eccentric drill tool is mainly a two-piece structure, which is mainly composed of a stepped shaft-shaped guide and an eccentric drill bit installed on the guide with a connecting pin.

[0003] According to Chinese patent publication number CN 216110549 U, a novel high-pressure single eccentric drilling tool is disclosed, including a bottom drill bit, the middle part of one end of the bottom drill bit is connected to the middle part of one end of the guide by a limit pin, the other end of the bottom drill bit is engaged with an eccentric ring, one end of the guide is sequentially interspersed with a through pin and a rising pin, the utility model is mainly composed of the guide, the eccentric ring and the bottom drill bit, the guide and the bottom drill bit are matched with a taper, the limit pin is used in the assembly to prevent torque rotation, the through pin is used to fix the impact loosening, it is easy to disassemble and assemble, and the torque is transmitted evenly, which greatly enhances the service life of the drilling tool, the eccentric ring is assembled on the bottom drill bit, and the eccentric limitation is used to achieve the purpose of hole expansion, thereby improving the construction efficiency.

[0004] However, the above device has the problem that it simply uses the through pin and the rising pin to fix the drill bit under the guide. When the drilling equipment drives the drill bit to rotate, vibration will be generated to shake the through pin and the rising pin apart, causing the drill bit to become loose. Utility Model Content

[0005] The purpose of the utility model is to provide a novel high-pressure single-eccentric drilling tool to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a new type of high wind pressure single eccentric drilling tool, comprising a main body mechanism, wherein a heat dissipation mechanism is arranged inside the main body mechanism;

[0007] The main body mechanism comprises a guide, a fixing seat is fixedly connected to the lower part of the guide, a drill body is threadedly connected to the inner part of the fixing seat, and an eccentric sleeve is snap-connected to the lower surface of the drill body.

[0008] Furthermore, by aligning the thread groove on the top of the drill body with the thread groove on the inner wall of the fixing seat, the drill body is rotated to tightly connect the drill body and the fixing seat, and then two bolts are sequentially inserted into the mounting holes on the left and right sides of the fixing seat, and the bolts are turned to fix the drill body inside the fixing seat, thereby improving the connection stability between the drill body and the fixing seat, making the installation of the drill body more convenient and quick, and avoiding the drill body from loosening during use;

[0009] After the drilling is completed, the drill body is pulled out from the object and the drilling equipment is started. The drilling equipment drives the drill body to rotate and throws out the dust and debris that have entered the guide hole. Then the drilling equipment continues to drive the drill body to rotate so that the outside air enters the drill body through the multiple heat dissipation holes and guide holes opened at the bottom of the drill body. The air enters the top of the drill body through the air outlet, thereby achieving the effect of quickly dissipating the heat of the drill body and extending the service life of the drill body.

[0010] Preferably, mounting holes are provided on both left and right sides of the fixing seat, and bolts are movably connected inside the mounting holes.

[0011] Furthermore, the mounting holes on the left and right sides of the fixing seat make it convenient to insert the bolts into the mounting holes on the left and right sides of the fixing seat in sequence after the drill body is placed into the fixing seat, and then turn the bolts to fix the drill body inside the fixing seat.

[0012] Preferably, one end of the bolt passes through the surface of the drill body and extends into the interior of the drill body.

[0013] Furthermore, one end of the bolt passes through the surface of the drill body and extends into the interior of the drill body, which can more securely fix the drill body inside the fixing seat, thereby improving the connection stability between the drill body and the fixing seat and preventing the drill body from shifting when the drilling equipment drives the drill body to rotate.

[0014] Preferably, the inner wall of the fixing seat and the top of the drill body are both provided with thread grooves that match each other.

[0015] Furthermore, the mutually compatible thread grooves opened on the inner wall of the fixing seat and the top of the drill body can, when installing the drill body, align the thread groove opened on the top of the drill body with the thread groove opened on the inner wall of the fixing seat and rotate the drill body to tightly connect the drill body and the fixing seat, thereby improving the connection stability between the drill body and the fixing seat and making the installation of the drill body more convenient and quick.

[0016] Preferably, an air outlet hole is provided inside the drill body.

[0017] Furthermore, the air outlet holes provided inside the drill body can facilitate external air to enter the air outlet holes through the guide holes when the drill body is driven to rotate by the drilling equipment, thereby accelerating the heat dissipation of the drill body.

[0018] Preferably, a guide hole is opened inside the lower part of the drill body.

[0019] Furthermore, the guide holes provided inside the lower part of the drill body can draw outside air into the air outlet holes when the drill body is driven to rotate by the drilling equipment, thereby accelerating the heat dissipation of the drill body and extending the service life of the drill body.

[0020] Preferably, a heat dissipation hole is provided below the drill body.

[0021] Furthermore, the heat dissipation holes opened at the bottom of the drill body can suck outside air into the heat dissipation holes when the drill body is driven to rotate by the drilling equipment. The outside air enters the drill body through multiple heat dissipation holes and guide holes, and the air enters the top of the drill body through the air outlet, thereby achieving rapid heat dissipation of the drill body.

[0022] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0023] First, the utility model aligns the thread groove opened on the top of the drill body with the thread groove opened on the inner wall of the fixing seat, rotates the drill body to tightly connect the drill body and the fixing seat, and then sequentially inserts two bolts into the mounting holes opened on the left and right sides of the fixing seat, and turns the bolts to fix the drill body inside the fixing seat, thereby improving the connection stability between the drill body and the fixing seat, making the installation of the drill body more convenient and quick, and avoiding the drill body from loosening during use.

[0024] Second, after the drilling is completed, the utility model pulls the drill body out of the object, starts the drilling equipment, and drives the drill body to rotate, so that the dust and debris that have entered the guide hole are thrown out. Then the drilling equipment continues to drive the drill body to rotate so that the outside air enters the drill body through the multiple heat dissipation holes and guide holes opened below the drill body, and the air enters the top of the drill body through the air outlet, thereby achieving the effect of quickly dissipating the heat of the drill body and extending the service life of the drill body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the right side cross-sectional structure of the utility model;

[0027] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the main structure of the utility model.

[0029] Wherein: 1. main body; 101. guide; 102. fixing seat; 103. drill body; 104. eccentric sleeve; 105. bolt; 2. heat dissipation mechanism; 201. air outlet; 202. guide hole; 203. heat dissipation hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The utility model provides the following technical solutions:

[0032] Embodiment 1

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , a new type of high wind pressure single eccentric drilling tool, comprising a main body mechanism 1, wherein a heat dissipation mechanism 2 is arranged inside the main body mechanism 1;

[0034] The main body mechanism 1 comprises a guide 101 , a fixing seat 102 is fixedly connected to the lower part of the guide 101 , a drill body 103 is threadedly connected to the inner part of the fixing seat 102 , and an eccentric sleeve 104 is snap-connected to the lower surface of the drill body 103 .

[0035] Specifically, mounting holes are provided on both the left and right sides of the fixing seat 102 , and bolts 105 are movably connected inside the mounting holes.

[0036] Specifically, one end of the bolt 105 passes through the surface of the drill body 103 and extends into the interior of the drill body 103 .

[0037] Specifically, the inner wall of the fixing seat 102 and the top of the drill body 103 are both provided with thread grooves that match each other.

[0038] Through the above technical scheme, the thread groove opened at the top of the drill body 103 is aligned with the thread groove opened on the inner wall of the fixing seat 102, and the drill body 103 is rotated to tightly connect the drill body 103 and the fixing seat 102 together, and then the two bolts 105 are sequentially inserted into the mounting holes opened on the left and right sides of the fixing seat 102, and the bolts 105 are turned to fix the drill body 103 inside the fixing seat 102, thereby improving the connection stability between the drill body 103 and the fixing seat 102, making the installation of the drill body 103 more convenient and quick, and avoiding the drill body 103 from loosening during use.

[0039] Embodiment 2

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 On the basis of the first embodiment, it is further obtained that an air outlet hole 201 is opened inside the drill body 103 .

[0041] Specifically, a guide hole 202 is opened inside the lower part of the drill body 103 .

[0042] Specifically, a heat dissipation hole 203 is provided below the drill body 103 .

[0043] Through the above technical solution, after the drilling is completed, the drill body 103 is pulled out from the inside of the object, and the drilling equipment is started. The drilling equipment drives the drill body 103 to rotate, and the dust and debris that have entered the guide hole 202 are thrown out. Then the drilling equipment continues to drive the drill body 103 to rotate so that the outside air enters the drill body 103 through the multiple heat dissipation holes 203 and the guide holes 202 opened below the drill body 103, and the air enters the top of the drill body 103 through the air outlet 201, thereby achieving the effect of quickly dissipating the heat of the drill body 103 and extending the service life of the drill body 103.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of high wind pressure single eccentric drilling tool, comprising a main body (1), characterized in that: A heat dissipation mechanism (2) is provided inside the main body mechanism (1); The main body mechanism (1) comprises a guide (101), a fixing seat (102) is fixedly connected below the guide (101), a drill body (103) is threadedly connected inside the fixing seat (102), an eccentric sleeve (104) is snap-fittedly connected to the lower surface of the drill body (103), mounting holes are provided on both left and right sides of the fixing seat (102), bolts (105) are movably connected inside the mounting holes, and one end of the bolt (105) passes through the surface of the drill body (103) and extends into the inside of the drill body (103).

2. A new type of high wind pressure single eccentric drilling tool according to claim 1, characterized in that: The inner wall of the fixing seat (102) and the top of the drill body (103) are both provided with thread grooves that match each other.

3. The new high wind pressure single eccentric drilling tool according to claim 2 is characterized by: An air outlet hole (201) is provided inside the drill body (103).

4. The new high wind pressure single eccentric drilling tool according to claim 1 is characterized by: A flow guide hole (202) is provided inside the lower portion of the drill body (103).

5. The new high wind pressure single eccentric drilling tool according to claim 1 is characterized by: A heat dissipation hole (203) is provided below the drill body (103).

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