阅读说明：本技术 一种具有八字型汇集交错式水路的金刚石钻头 (Diamond drill bit with splayed water collecting and staggering water paths ) 是由 王夏城 兰桥昌 于 2020-05-22 设计创作，主要内容包括：本发明提供一种具有八字型汇集交错式水路的金刚石钻头,其头部上端沿圆周设有切削齿和八字汇集交错式水路,所述八字汇集交错式水路包括若干个端面水口、外水槽以及内水槽；内工作齿外侧壁内凹形成外水槽,外工作齿内侧壁内凹形成内水槽；所述端面水口包括斜向设置的顺流水口和逆流水口,相邻的顺流水口和逆流水口之间逆向设置,呈八字型或倒八字型分布,且八字型和倒八字型分布形式交替排列；所述顺流水口和逆流水口外侧端口与对应外水槽的端部相连通,内侧端口则与对应内水槽的端部相连通。本发明可改变金刚石钻头的工作方式,具有提高金刚石钻头的工作效率、工作寿命以及预防烧钻事故的能力,避免金刚石钻头在工作过程中出现的跳动和振动。(The invention provides a diamond drill bit with splayed converging and staggered water channels, wherein cutting teeth and the splayed converging and staggered water channels are arranged at the upper end of the head part along the circumference, and each splayed converging and staggered water channel comprises a plurality of end surface water gaps, an outer water channel and an inner water channel; the outer side wall of the inner working tooth is concave inwards to form an outer water tank, and the inner side wall of the outer working tooth is concave inwards to form an inner water tank; the end surface water gaps comprise downstream water gaps and upstream water gaps which are obliquely arranged, adjacent downstream water gaps and upstream water gaps are reversely arranged and distributed in a splayed or inverted splayed manner, and the splayed and inverted splayed distribution forms are alternately arranged; the outer side ports of the downstream water port and the upstream water port are communicated with the end part of the corresponding outer water tank, and the inner side ports are communicated with the end part of the corresponding inner water tank. The invention can change the working mode of the diamond bit, has the capabilities of improving the working efficiency and the working life of the diamond bit and preventing the drill burning accident, and avoids the jumping and the vibration of the diamond bit in the working process.)

1. The utility model provides a diamond bit with eight characters collect alternating water route which characterized in that: the diamond drill bit comprises a drill bit steel body and a drill bit working layer, the upper end of the head of the drill bit steel body is circumferentially provided with cutting teeth and a splayed converging staggered water channel, the cutting teeth are composed of a plurality of inner working teeth and outer working teeth, and the splayed converging staggered water channel comprises a plurality of end surface water gaps, an outer water channel and an inner water channel;

the inner working teeth and the outer working teeth are arranged in a staggered way along the circumference of the steel body, end surface water gaps are arranged at intervals, the outer side wall of each inner working tooth is concave inwards to form the outer water tank, and the inner side wall of each outer working tooth is concave inwards to form the inner water tank;

the end surface water gaps comprise downstream water gaps and upstream water gaps which are obliquely arranged, the downstream water gaps and the upstream water gaps are arranged at intervals, adjacent downstream water gaps and upstream water gaps are reversely arranged and distributed in a splayed or inverted splayed shape, and the splayed and inverted splayed distribution forms are alternately arranged; the outer side ports of the downstream water port and the upstream water port are communicated with the end part of the corresponding outer water tank, and the inner side ports are communicated with the end part of the corresponding inner water tank;

the drill bit working layer comprises an inner tooth working layer, an inner gauge protection layer, an outer tooth working layer and an outer gauge protection layer, the inner tooth working layer is arranged at the upper end of the inner working tooth, and the inner gauge protection layer is arranged on the inner side of the inner working tooth; the upper end of outer work tooth is provided with outer tooth working layer, the outside of outer work tooth is provided with outer gauge protection layer.

2. The diamond drill bit with splay converging staggered water channels as set forth in claim 1, wherein: the deflection angle of the water gap of each end surface water gap is 15-75 degrees.

3. The diamond drill bit with splay converging staggered water channels as set forth in claim 2, wherein: the deflection angle of the water gap of each end surface water gap is 45-65 degrees.

4. The diamond drill bit with splay converging staggered water channels as set forth in claim 1, wherein: and groove plating layers are arranged on the outer side wall of the inner working tooth and the inner side wall of the outer working tooth.

5. The diamond drill bit with splay converging staggered water channels as set forth in claim 1, wherein: the tail of the drill steel body is provided with a connecting thread, a circle of righting ring is arranged at the position, close to the connecting thread, in the middle of the drill steel body, the outer diameter of the righting ring is smaller than or equal to that of the head of the diamond drill, and the difference value is not larger than 4 mm.

6. The diamond drill bit with splay converging staggered water channels as set forth in claim 5, wherein: the outer diameter of the centralizing ring is less than or equal to the outer diameter of the diamond drill bit head, and the difference is 0.5-2 mm.

7. The diamond drill bit with splay converging staggered water channels as set forth in claim 1 or 5, wherein: the height of the righting ring is not less than 10 mm.

8. The diamond drill bit with splay converging staggered water channels as set forth in claim 7, wherein: the height of the righting ring is 20-50 mm.

9. The diamond drill bit with splay converging staggered water channels as set forth in claim 1 or 5, wherein: the distance between the centralizing ring and the outer gauge layer is not less than 10 times of the diameter difference between the drill bit head and the centralizing ring.

10. The diamond drill bit with splay converging staggered water channels as set forth in claim 1, wherein: the righting ring is provided with a plurality of vertically-through drainage grooves.

[ technical field ] A method for producing a semiconductor device

The invention relates to a diamond drill bit with splayed converging and staggered water channels.

[ background of the invention ]

Diamond bits are one of the important cutting tools for rock drilling in geological drilling. In recent years, the demand for the working efficiency of diamond bits for drilling has been increasing with the rise in labor costs and energy (diesel) costs. However, the drilling rate and life of diamond bits are typically spearheads and the drilling rate of the bit depends on the working pressure and rotational speed imparted to the bit by the drill, and high drilling rates further increase the working requirements for bit cooling and the like. The structure of the drill bit is an important component for meeting the requirement of the existing drilling efficiency.

For example, chinese patent application No. CN201810966472.0 discloses a diamond drill bit, which comprises a drill steel body, wherein the drill steel body is hollow and cylindrical as a whole, and drill working teeth are arranged on the upper end of the drill steel body along the circumference, the drill working teeth are composed of a plurality of inner working teeth and outer working teeth, the inner working teeth and the outer working teeth are staggered and arranged along the circumference of the steel body, and water gaps are arranged at intervals; the outer side wall of the inner working tooth is provided with an outer groove, and the inner side wall of the outer working tooth is provided with an inner groove; the overlooking sections of the inner working teeth and the outer working teeth are relatively inwards convex and outwards convex. The structural design is not perfect enough, and the problems of short service life of the drill bit and the like still exist. The main defects of the prior art include: (1) the working area of the cross fork teeth on the inner side and the outer side of the drill bit is greatly reduced, so that the inner side and the outer side are quickly abraded, and the service life of the drill bit is shortened; (2) the cross tooth drill bit has increased transverse force due to the change of the stress condition of the lip surface, so that the drill bit is easy to jump and the service life of the drill bit is shortened.

[ summary of the invention ]

The technical problem to be solved by the invention is to provide a diamond drill bit with splayed converging and staggered water paths, and the splayed converging and staggered water paths are designed, so that the working area of working teeth on the inner side and the outer side of the diamond drill bit and the diamond cutting speed can be increased, the working life and the working efficiency of the diamond drill bit are greatly improved, and a drilling burning accident caused by short-time water cut-off is prevented; in addition, the centralizing ring can balance the transverse force generated by the diamond bit during working, and the jumping and vibration of the diamond bit during working are avoided.

The invention is realized by the following steps:

a diamond drill bit with splayed converging and staggered water paths comprises a drill bit steel body and a drill bit working layer, wherein cutting teeth and splayed converging and staggered water paths are arranged at the upper end of the head of the drill bit steel body along the circumference, the cutting teeth consist of a plurality of inner working teeth and outer working teeth, and the splayed converging and staggered water paths comprise a plurality of end surface water gaps, outer water grooves and inner water grooves;

the inner working teeth and the outer working teeth are arranged in a staggered way along the circumference of the steel body, end surface water gaps are arranged at intervals, the outer side wall of each inner working tooth is concave inwards to form the outer water tank, and the inner side wall of each outer working tooth is concave inwards to form the inner water tank;

the end surface water gaps comprise downstream water gaps and upstream water gaps which are obliquely arranged, the downstream water gaps and the upstream water gaps are arranged at intervals, adjacent downstream water gaps and upstream water gaps are reversely arranged and distributed in a splayed or inverted splayed shape, and the splayed and inverted splayed distribution forms are alternately arranged; the outer side ports of the downstream water port and the upstream water port are communicated with the end part of the corresponding outer water tank, and the inner side ports are communicated with the end part of the corresponding inner water tank;

the drill bit working layer comprises an inner tooth working layer, an inner gauge protection layer, an outer tooth working layer and an outer gauge protection layer, the inner tooth working layer is arranged at the upper end of the inner working tooth, and the inner gauge protection layer is arranged on the inner side of the inner working tooth; the upper end of outer work tooth is provided with outer tooth working layer, the outside of outer work tooth is provided with outer gauge protection layer.

Furthermore, the deflection angle of the water gap of each end surface water gap is 15-75 degrees.

Furthermore, the deflection angle of the water gap of each end surface water gap is 45-65 degrees.

Furthermore, the outer side wall of the inner working tooth and the inner side wall of the outer working tooth are both provided with groove plating layers.

Furthermore, the tail of the drill steel body is provided with a connecting thread, a circle of righting ring is arranged at the position, close to the connecting thread, in the middle of the drill steel body, the outer diameter of the righting ring is smaller than or equal to that of the diamond drill head, and the difference value is not larger than 4 mm.

Further, the outer diameter of the centralizing ring is smaller than or equal to the outer diameter of the diamond bit head, and the difference is 0.5-2 mm.

Further, the height of the centralizing ring is not less than 10 mm.

Further, the height of the centralizing ring is 20-50 mm.

Further, the distance between the centralizing ring and the outer gauge layer is not less than 10 times of the difference between the diameter of the drill bit head and the diameter of the centralizing ring.

Furthermore, a plurality of vertically-through drainage grooves are formed in the righting ring.

The invention has the following advantages:

(1) through the arrangement of the water gaps of the splayed or inverted splayed end surfaces, the working area of the inner edge and the outer edge of the diamond drill bit is increased, and the working life of the diamond drill bit is prolonged; (2) the lip face cutting area is reduced, the working pressure of single diamond particles is improved, the diamond can conveniently etch and take rocks, coarse rock powder is generated, and the diamond edge cutting speed is further increased; (3) the staggered arrangement of the inner working teeth and the outer working teeth forms a crossed tooth drill bit structure, so that the mechanism of crushing rocks by the diamond drill bit is changed, the pressure required by the work of the drill bit is reduced, and the work efficiency of the diamond drill bit is improved; (4) through the arrangement and distribution of the inner water tank and the outer water tank of the cutting teeth, drilling flushing liquid is dredged, the erosion of the flushing liquid to a gauge protection working surface is reduced, the contact area between a rock core and a drill bit is reduced, and therefore the drilling resistance is reduced; (5) through carrying out reverse setting to adjacent terminal surface mouth of a river, can form bottom self-loopa ability when making the drill bit lack the flush fluid, reduce the risk of burning out of bore of exempting from the drill bit.

(6) The annular centralizing ring with a certain width is arranged on the drill steel body, so that the transverse force generated by the diamond drill in the working process can be balanced, the diamond drill is prevented from generating jumping vibration during working, drilling accidents are avoided, and the service life of the drill is prolonged.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a perspective view of a diamond drill bit with splay converging staggered water channels according to the present invention.

Fig. 2 is a perspective view of a drill steel body of the diamond drill with splay converging staggered water channels according to the present invention.

Fig. 3 is a cross-sectional view of a diamond drill bit having splay converging staggered water channels according to the present invention.

Figure 4 is a partial cross-sectional view of the inner and outer working teeth of the present invention.

Fig. 5 is a top view of a diamond drill bit with splay converging staggered water channels according to the present invention.

Fig. 6 is a top view of another embodiment of a diamond drill bit with splay converging staggered water channels according to the present invention.

[ detailed description ] embodiments

Referring to fig. 1-6, the invention relates to a diamond drill bit with splayed converging staggered water channels, which comprises a drill bit steel body 1 and a drill bit working layer 2, wherein the upper end of the head of the drill bit steel body 1 is circumferentially provided with cutting teeth and splayed converging staggered water channels, the cutting teeth are composed of a plurality of inner working teeth 11 and outer working teeth 12, and the splayed converging staggered water channels comprise a plurality of end surface water gaps 13, an outer water tank 14 and an inner water tank 15;

the inner working teeth 11 and the outer working teeth 12 are arranged alternately along the circumference of the steel body in a staggered manner, end surface water gaps 13 are arranged at intervals, the outer side wall of each inner working tooth 11 is recessed inwards to form an outer water tank 14, and the inner side wall of each outer working tooth 12 is recessed inwards to form an inner water tank 15;

the end face water gap 13 comprises a downstream water gap 131 and a counter-flow water gap 132 which are obliquely arranged, the downstream water gap 131 and the counter-flow water gap 132 are arranged at intervals, adjacent downstream water gaps 131 and counter-flow water gaps 132 are reversely arranged and distributed in a splayed or inverted splayed shape, and the splayed and inverted splayed distribution forms are alternately arranged; the outer side ports of the forward flow water port 131 and the reverse flow water port 132 are communicated with the end part of the corresponding outer water tank 14, and the inner side ports are communicated with the end part of the corresponding inner water tank 15; the downstream water gap 131 and the upstream water gap 132, which are arranged in a splayed or inverted splayed configuration, have their proximal ends joined together and have their terminal ends butted against the outer water tank 14 or the inner water tank 15.

The drill bit working layer 2 comprises an inner tooth working layer 21, an inner gauge layer 22, an outer tooth working layer 23 and an outer gauge layer 24, the inner tooth working layer 21 is arranged at the upper end of the inner working tooth 11, and the inner gauge layer 22 is arranged on the inner side of the inner working tooth 11; the upper end of outer working tooth 12 is provided with outer tooth working layer 23, the outside of outer working tooth 12 is provided with outer gauge protection layer 24. And groove plating layers 25 are arranged on the outer side wall of the inner working tooth 11 and the inner side wall of the outer working tooth 12.

The deflection angle of the water gap of each end surface water gap 13 is 15-75 degrees.

Preferably, the deflection angle of the nozzle of each end face nozzle 13 is 45-65 °.

The afterbody of the drill bit steel body is provided with connecting thread 16, drill bit steel body middle part is close to connecting thread 16 department is provided with a round and rights ring 17, right ring 17 and drill bit steel body integrated into one piece, the effect of righting ring 17 is balanced diamond bit during operation and produces the transverse force, prevents that diamond bit during operation from producing and beating and vibration. The outer diameter n of the centralizing ring 17 is less than or equal to the outer diameter m of the diamond drill bit head, and the difference between m and n is not more than 4mm, preferably 0.5-2 mm. The height c of the centralizing ring 17 is not less than 10 mm. The distance e between the centralizing ring 17 and the outer gauge layer is not less than 10 times of the difference (m-n) between the outer diameter m of the drill bit head and the outer diameter n of the centralizing ring. The centralizing ring 17 is provided with a plurality of drainage grooves 171 which are vertically communicated, and when the drill bit which needs to be drilled by mud is used for producing the drill bit of the complex rock stratum, the drainage grooves 171 can ensure the smoothness of drilling flushing fluid and avoid pump blocking.

Preferably, the height of the centralizing ring 17 is 20-50 mm.

The present invention will be further described with reference to the following examples.

Referring to fig. 6, the outer working teeth 12 are surrounded by the downstream water gap 131, the inner water groove 14 and the upstream water gap 132, the inner working teeth 11 are surrounded by the upstream water gap 132, the outer water groove 15 and the downstream water gap 131, a group of working unit groups of the head of the drill steel body of the present invention are formed, and the inner working teeth 11 and the outer working teeth 12 are distributed in an inner-outer staggered manner to form cross-teeth. The forward flow water gap 131, the inner water tank 14, the reverse flow water gap 132 and the outer water tank 15 are combined to form the splayed converging staggered waterway.

Referring to fig. 6, the end face nozzle is a group of grooves forming an included angle with the radius j of the corresponding point of the radial center circle i of the lip surface of the bit, two side edges of the grooves are arranged in parallel, and the axis (c or d) of the groove and the radius j of the corresponding point (or the connecting line of the corresponding point and the end face) form a certain included angle (a or b), which is called as a nozzle deflection angle. The value range of each water gap deflection angle is 15-75 degrees, and the optimal value range is 45-65 degrees; wherein the groove axis c forms a negative angle (shown as a) with the corresponding point radius j to form a downstream water gap 131, and the groove axis d forms a positive angle (shown as b) with the corresponding point radius j to form a upstream water 1 gap 32. When the close ends of the forward flow water gap 131 and the reverse flow water gap 132 are inward, the close ends are converged at the inner water tank 14; when the adjacent ends of the forward flow water gap 131 and the reverse flow water gap 132 face outwards, they meet at the outer water tank 15.

The edges of the grooves at the two ends of the outer water tank 15 and the inner water tank 14 are connected with the adjacent working teeth. The radial depth of the grooves of the outer water groove 15 and the inner water groove 14 is 45-15% of the radial thickness of the cutting teeth.

Please refer to fig. 4, wherein fig. 4-1 is an outer working tooth, and fig. 4-2 is an inner working tooth; plating an electroplating alloy embedded diamond working layer 2 on the cutting teeth of the drill steel body 1 in an electroplating mode, wherein the diamond working layer comprises an internal tooth working layer 21, an internal gauge protection layer 22, an external tooth working layer 23, an external gauge protection layer 24 and a groove plating layer 25; the inner tooth working layer 21 is plated at the upper end of the inner working tooth 11, and the outer tooth working layer 23 is plated at the upper end of the outer working tooth 12 and is used for cutting rocks to implement drilling; the inner gauge layer 22 is plated on the inner side surface of the inner working tooth 11, and the outer gauge layer 24 is plated on the outer side surface of the outer working tooth 12 and used for keeping the inner diameter and the outer diameter of the drill bit not to be reduced rapidly; the groove plating layer 25 is plated on the outer side wall of the inner working tooth 11 and the inner side wall of the outer working tooth 12, and is used for enhancing the bonding force between the plating layer and the drill steel body and avoiding the rapid abrasion of the groove;

the invention has the advantages that: (1) through the arrangement of the water gaps of the splayed or inverted splayed end surfaces, the working area of the inner edge and the outer edge of the diamond drill bit is increased, and the working life of the diamond drill bit is prolonged; (2) the lip face cutting area is reduced, the working pressure of single diamond particles is improved, the diamond can conveniently etch and take rocks, coarse rock powder is generated, and the diamond edge cutting speed is further increased; (3) the staggered arrangement of the inner working teeth and the outer working teeth forms a crossed tooth drill bit structure, so that the mechanism of crushing rocks by the diamond drill bit is changed, the pressure required by the work of the drill bit is reduced, and the work efficiency of the diamond drill bit is improved; (4) through the arrangement and distribution of the inner water tank and the outer water tank of the cutting teeth, drilling flushing liquid is dredged, the erosion of the flushing liquid to a gauge protection working surface is reduced, the contact area between a rock core and a drill bit is reduced, and therefore the drilling resistance is reduced; (5) through carrying out reverse setting to adjacent terminal surface mouth of a river, can form bottom self-loopa ability when making the drill bit lack the flush fluid, reduce the risk of burning out of bore of exempting from the drill bit.

(6) The annular centralizing ring with a certain width is arranged on the drill steel body, so that the transverse force generated by the diamond drill in the working process can be balanced, the diamond drill is prevented from generating jumping vibration during working, drilling accidents are avoided, and the service life of the drill is prolonged.

Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.