Diversion cooling drill bit

Abstract

The utility model provides a split-flow cooling drill bit, and belongs to the field of drill bits. The spiral drill solves the problems that the service life of a drill bit is shortened, the abrasion speed of the drill bit is increased and the like possibly caused by long-time heat accumulation, comprises a main shaft and two spiral parts located on the main shaft, and is characterized in that a water inlet pipe and a water outlet pipe are arranged at the upper end of the main shaft and both extend into the main shaft, and the water inlet pipe and the water outlet pipe are communicated with the main shaft. A heat conduction rod is arranged in the main shaft, two heat absorption parts consistent with the two spiral parts in direction are arranged on the heat conduction rod, the water inlet pipe and the water outlet pipe penetrate through the heat absorption parts respectively and are consistent with the heat absorption parts in spiral direction respectively, and the ends of the water inlet pipe and the water outlet pipe are communicated with each other to form a circular flow channel surrounding the heat conduction rod.

Description

Technical Field

[0001] This utility model belongs to the field of drill bits, and specifically relates to a diversion and cooling drill bit. Background Technology

[0002] During the drilling process, the drill bit generates heat through friction with the workpiece. Prolonged heat accumulation may lead to problems such as reduced drill bit lifespan and accelerated drill bit wear, thereby affecting processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a diversion and cooling drill bit.

[0004] The purpose of this utility model can be achieved through the following technical solution: a diversion cooling drill bit, including a spindle and two spiral parts located on the spindle, characterized in that the upper end of the spindle is provided with a water inlet pipe and a water outlet pipe, and both the water inlet pipe and the water outlet pipe extend into the spindle;

[0005] The main shaft is equipped with a heat-conducting rod, and the heat-conducting rod is equipped with two heat-absorbing parts that are aligned with the directions of the two spiral parts. The water inlet pipe and the water outlet pipe pass through the heat-absorbing parts and are aligned with the spiral direction of the heat-absorbing parts. The ends of the water inlet pipe and the water outlet pipe are connected to each other to form an annular flow channel around the heat-conducting rod.

[0006] In the above-mentioned type of diversion cooling drill bit, several symmetrical heat-absorbing blocks are also provided on both sides of the heat-conducting rod. The heat absorption is located at the main shaft where no spiral part is provided, and the water inlet pipe and water outlet pipe pass through the heat-absorbing blocks on both sides of the heat-conducting rod respectively.

[0007] In the aforementioned type of diversion cooling drill bit, the heat-absorbing part is located in two spiral sections, and one end is connected to the heat-conducting rod.

[0008] In the above-mentioned type of diversion cooling drill bit, the water inlet pipe and the water outlet pipe pass through the top of the heat absorption part along the spiral direction of the heat absorption part until they extend out from the bottom of the heat absorption part.

[0009] Compared with existing technologies, this diversion cooling drill bit forms a water circulation through the inlet and outlet pipes, which accelerates the heat dissipation efficiency and effectively avoids the problem of reduced service life of the drill bit due to overheating. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main body of this diversion and cooling drill bit;

[0011] Figure 2 This is a cross-sectional view of the flow-diverting cooling drill bit.

[0012] In the diagram, 1 is the main shaft; 2 is the spiral section; 3 is the water inlet pipe; 4 is the water outlet pipe; 5 is the heat-conducting rod; 6 is the heat-absorbing section; 7 is the annular flow channel; and 8 is the heat-absorbing block. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, this diversion cooling drill bit includes a spindle 1 and two spiral sections 2 located on the spindle 1. The upper end of the spindle 1 is provided with a water inlet pipe 3 and a water outlet pipe 4, both of which extend into the spindle 1.

[0015] A heat-conducting rod 5 is installed inside the main shaft 1. The heat-conducting rod 5 is used to absorb and conduct heat inside the main shaft 1. Two heat-absorbing parts 6 are provided on the heat-conducting rod 5, which are respectively aligned with the directions of the two spiral parts 2. The water inlet pipe 3 and the water outlet pipe 4 pass through the heat-absorbing parts 6 and are respectively aligned with the spiral direction of the heat-absorbing parts 6. The ends of the water inlet pipe 3 and the water outlet pipe 4 are connected to each other to form an annular flow channel 7 around the heat-conducting rod 5. The annular flow channel 7 connects the water inlet pipe 3 and the water outlet pipe 4, so that the liquid can enter from the water inlet pipe 3 and then be discharged from the water outlet pipe 4.

[0016] Preferably, several symmetrical heat-absorbing blocks 8 are also provided on both sides of the heat-conducting rod 5. The heat absorption is located at the main shaft 1 where the spiral part 2 is not provided. The water inlet pipe 3 and the water outlet pipe 4 pass through the heat-absorbing blocks 8 on both sides of the heat-conducting rod 5. Since the main shaft 1 is cylindrical, a larger heat-absorbing block 8 can be used to absorb the heat conducted by the heat-conducting rod 5.

[0017] Preferably, the heat-absorbing part 6 is located inside the two spiral parts 2 respectively, and one end is connected to the heat-conducting rod 5, so that the heat-absorbing part 6 can effectively and comprehensively absorb the heat of the spiral part 2.

[0018] Preferably, the inlet pipe 3 and the outlet pipe 4 pass through the heat absorption part 6 from the top of the heat absorption part 6 along the spiral direction of the heat absorption part 6 until they extend from the bottom of the heat absorption part 6, thereby increasing the contact area between the inlet pipe 3 and the outlet pipe 4 and the heat absorption part 6, and more effectively increasing the heat dissipation capacity.

[0019] Preferably, the inlet pipe 3 and the outlet pipe 4 are both made of high-temperature resistant stainless steel, and the heat-absorbing block 8, the heat-absorbing part 6 and the heat-conducting rod 5 are all made of materials with good thermal conductivity, such as copper.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as main shaft 1, spiral section 2, inlet pipe 3, outlet pipe 4, heat-conducting rod 5, heat-absorbing section 6, annular flow channel 7, and heat-absorbing block 8, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A split flow cooling drill bit comprising a main shaft (1) and two helical sections (2) located on the main shaft (1), characterized in that, The main shaft (1) upper end is provided with water inlet pipe (3) and water outlet pipe (4), the water inlet pipe (3) and water outlet pipe (4) all extend to the main shaft (1) inside; The main shaft (1) is provided with heat conduction rod (5), the heat conduction rod (5) is provided with two heat absorption parts (6) respectively consistent with the direction of two spiral parts (2), the water inlet pipe (3) and water outlet pipe (4) respectively pass through heat absorption part (6), and are respectively consistent with the spiral direction of heat absorption part (6), the water inlet pipe (3) and water outlet pipe (4) dead end place each other and form annular flow channel (7) around heat conduction rod (5).

2. The diverter-cooled drill bit of claim 1, wherein, The heat conduction rod (5) both sides are further provided with a plurality of symmetrical heat absorption blocks (8), the heat absorption is located in the main shaft (1) not provided with spiral part (2), the water inlet pipe (3) and water outlet pipe (4) respectively pass through the heat absorption block (8) of heat conduction rod (5) both sides.

3. The diverter-cooled drill bit of claim 1, wherein, The heat absorption part (6) is located in two spiral parts (2) respectively, and one end is connected with heat conduction rod (5).

4. The diverter-cooled drill bit of claim 1, wherein, The water inlet pipe (3) and water outlet pipe (4) respectively from heat absorption part (6) top end along heat absorption part (6) spiral direction pass until heat absorption part (6) bottom end stretches out.

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