CN101824967B - Novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing method - Google Patents
Novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing method Download PDFInfo
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- CN101824967B CN101824967B CN201010160395A CN201010160395A CN101824967B CN 101824967 B CN101824967 B CN 101824967B CN 201010160395 A CN201010160395 A CN 201010160395A CN 201010160395 A CN201010160395 A CN 201010160395A CN 101824967 B CN101824967 B CN 101824967B
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Abstract
The invention provides a high adhesion strength diamond engineering thin wall drilling bit and a manufacturing method. The drilling bit comprises a drilling head, a drilling tail and a connecting piece, wherein the drilling head comprises a cylindrical body and a knife block arranged on the end surface of the top of the cylindrical body, and continuous or intermittent ladder-shaped projections are arranged on the end surface of the top of the cylindrical body; one end of the knife block is provided with depressions matched with the ladder-shaped projections, and the knife block is sleeved and welded on the ladder-shaped projections; and one end of the drilling tail is provided with a second connecting mechanism to connect the other end of the connecting piece. The cylindrical body and the knife block are connected into a whole by a high temperature and high pressure method, and the method can improve the reliability of the connection of the knife block and the cylindrical body.
Description
Technical field
The present invention relates to a kind of novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing approach.
Background technology
The first structure of present diamond core drill bit all is that front end at intervalve is with the light-wall pipe jumping-up; Adopt soldering processes that cutter head and the intervalve that bores head are welded together then; Because the characteristics of soldering processes itself have determined weld strength very low, in use cutter head is easy to be out of shape even cutter head comes off from bonding surface.
Summary of the invention
To defective that exists in the prior art and deficiency, the objective of the invention is to propose a kind of novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing approach, can improve the bonding strength of cutter head, bore first application life to improve.
In order to achieve the above object, the present invention proposes a kind of novel high adhesion strength diamond engineering thin wall drilling bit, it is characterized in that, comprising: bore head, bore tail and connector;
The end face at the first top of said brill is provided with the cutter piece and the mouth of a river that distributes along circumferentially, and said cutter piece is the convexity that is arranged on the said end face and extends vertically, forms the mouth of a river between two adjacent cutter pieces; Said cutter head bottom is provided with first bindiny mechanism to connect said connector one end;
Said tubular bodies top end face is provided with along circumferential continuous or interrupted stepped convexity; Said cutter piece one end is provided with and the suitable depression of said stepped convexity, and said cutter piece is socketed on the said stepped convexity and welding;
One end of said brill tail is provided with second bindiny mechanism to connect the other end of said connector.
Preferred as technique scheme, said tubular body has predetermined thickness, and said first bindiny mechanism is the step-like depression that the edge of said tubular body bottom outer surface circumferentially is provided with.
Preferred as technique scheme, the inner surface of an end of said connector is provided with the continuous depression of extending along circumferentially, and said continuous depression is socketed on said boring outside the first first bindiny mechanism.
Preferred as technique scheme, an end of said connector welds with said first bindiny mechanism.
Preferred as technique scheme, an end of said brill tail is provided with second bindiny mechanism, and second bindiny mechanism is the step-like depression that the edge of said brill tail one end external surface circumferentially is provided with.
Preferred as technique scheme, the inner surface of the other end of said connector is provided with the continuous depression of extending along circumferentially, and said continuous depression is socketed on said boring outside the second first bindiny mechanism.
Preferred as technique scheme, said continuous depression is provided with internal thread, and said second bindiny mechanism's external surface is provided with suitable external screw thread.
Preferred as technique scheme, said brill tail surface is provided with along the spanner that circumferentially extends and clamps face.
Simultaneously, the invention allows for the manufacturing approach of aforesaid novel high adhesion strength diamond engineering thin wall drilling bit, comprising:
Step 101, be that tubular body and cutter piece form to cold pressing and wholely bore firstly, and mouth of a river cushion block be placed on the described mouth of a river; And the said whole head of boring that colds pressing is placed in the sintering former, and be inserted in the whole head of boring that colds pressing the sintering mandrel is said, fit to form the sintering module;
Step 102, the sintering module zoarium that installs is put into the agglomerating furnace furnace chamber, and connect protective gas, when lighting at gas vent when forming venting flame, agglomerating furnace begins heating;
Step 103, after the furnace chamber temperature reaches 550 ℃～750 ℃ and kept 20-40 minute; Then temperature is elevated to 800 ℃ ± 15 ℃ and kept 20-40 minute; Again temperature is elevated to 880 ℃ ± 15 ℃ and kept 20-40 minute;
Step 104; Again temperature is elevated to 900 ℃-1000 ℃, and starts jacking system agglomerating furnace up-down pressing plate is risen, the tubular body bottom in the sintering module zoarium is pressed on the agglomerating furnace top board; Simultaneously up-down pressing plate and/or top board are forced into and are not less than 7 tons, the pressurization duration is not less than 5 minutes; Temperature is remained on 900 ℃-1000 ℃, and kept 20-40 minute;
Step 105, agglomerating furnace is lowered the temperature, when temperature is reduced to when being lower than 200 ℃, take out and cooling the sintering module is fit.
Preferred as technique scheme, said step 101 is specially:
Step 101a, powder is pressed into the cutter piece earlier, then cutter piece and mouth of a river block is put at interval the cavity volume of sintering former, put into the tubular body then and put into the sintering mandrel at last through cold compression molding method.
Preferred as technique scheme, said step 101 can also be specially:
Step 101b, powder and tubular body are pressurizeed simultaneously through cold compression molding method; Form integral body cold pressing bore first, and the position at the mouth of a river put into mouth of a river block, put into the cavity volume of sintering former then together; And be inserted in the whole head of boring that colds pressing the sintering mandrel is said, fit to form the sintering module.
The present invention proposes a kind of novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing approach, through connector will bore first, bore tail and link together.So both can change easily and bore head, and can improve the intensity of connection again.Simultaneously, be provided with along circumferential continuous or interrupted stepped convexity at brill head end face; Said cutter piece one end is provided with and the suitable depression of said stepped convexity, and said cutter piece is socketed on the said stepped convexity and welding.This mode can greatly improve the cutter piece and bore the first reliability that is connected.
Description of drawings
Fig. 1 is the sectional structure sketch map of the preferred embodiments of the present invention;
Fig. 2 is the first sectional structure sketch map of brill among Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is for boring a kind of structural representation of first tubular body;
Fig. 5 is for boring the another kind of structural representation of first tubular body;
Fig. 6 is the sectional structure sketch map of the connector among Fig. 1;
Fig. 7 is the sectional structure sketch map of the brill tail among Fig. 1;
Fig. 8 is that the B-B of Fig. 7 is to the sectional structure sketch map;
Fig. 9 is for making the first equipment that bores in the present invention's enforcement
Figure 10 is the fit structural representation of sintering module;
Figure 11 is the whole structural representation that bores first manufacturing equipment of colding pressing;
Figure 12 is the another kind of whole structural representation that bores first manufacturing equipment of colding pressing.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
The preferred embodiment of the present invention is as shown in Figure 1, and a kind of novel high adhesion strength diamond engineering thin wall drilling bit comprises: bore head 1, connector 2 and bore tail 3.Wherein, Like Fig. 2, shown in Figure 3; Said brill first 1 comprises tubular body 1.3; And be fixedly connected on said tubular body 1.3 top end and be provided with along the cutter piece that circumferentially distributes 1.1 and the mouth of a river 1.5, the convexity of said cutter piece 1.1 for being arranged on the said end face and extending vertically forms the mouth of a river 1.5 between two adjacent cutter pieces; Said cutter head bottom is provided with first bindiny mechanism 1.4 to connect an end of said connector 2.Like Fig. 4, shown in Figure 5, the first 1 tubular body of said brill 1.3 top end are provided with continuous convexity 121 or interrupted stepped protruding 122; Said cutter piece 1.1 1 ends are provided with the depression suitable with said stepped protruding 121 or 122, and said cutter piece 1.1 is socketed on said stepped protruding 121 or 122 and welding; One end of said brill tail 3 is provided with second bindiny mechanism 3.1 to connect the other end of said connector 2.
As shown in Figure 2, said brill first 1 comprises a tubular body 1.3, and said tubular body 1.3 has predetermined thickness, the step-like depression that the edge that said first bindiny mechanism 1.4 is said tubular body 1.3 bottom outer surfaces circumferentially is provided with.
Like Fig. 1, shown in Figure 6, the inner surface of an end of said connector 2 is provided with the continuous depression 2.1 of extending along circumferentially, and said continuous depression is socketed on said boring outside the first first bindiny mechanism.As shown in Figure 1, can will bore first 1 and be fixed together through welding 4 with connector 2.
As shown in Figure 7, an end of said brill tail 3 is provided with the circumferential step-like depression that is provided with in edge that 3.1, the second bindiny mechanisms 3.1 of second bindiny mechanism are said brill tail 3 one end external surfaces.
As shown in Figure 1, the inner surface of the other end of said connector 2 is provided with the continuous depression 2.2 of extending along circumferentially, and said continuous depression 2.2 is socketed on said boring outside the second first bindiny mechanism 3.1.
Preferred as technique scheme, said continuous depression 2.2 is provided with internal thread, and said second bindiny mechanism 3.1 external surfaces are provided with suitable external screw thread, so that connector 2 is screwed onto with boring tail 3, so that dismounting and installing.
As shown in Figure 8, said brill tail 3 surfaces are provided with along the spanner that circumferentially extends and clamp face 3.4, so that through spanner connector 2 and brill tail 3 are carried out dismounting.
As shown in Figure 7, the bottom of boring tail 3 is provided with screwed hole 3.2, to be connected with rig.The cone match of said location taper hole 3.3 and rig output shaft is with the location.
The invention allows for a kind of manufacturing approach of aforesaid novel high adhesion strength diamond engineering thin wall drilling bit, comprising:
Step 101, first in order to make brill as shown in Figure 2 forms the whole head of boring 1.6 that colds pressing shown in figure 10 through tubular body 1.3 and cutter piece 1.1, and mouth of a river cushion block 2.2 is placed in the mouth of a river as shown in Figure 3 1.5.Shown in figure 10 then, be placed in the sintering former 2.1 shown in figure 10 at the whole head of boring 1.6 that colds pressing that will assemble then, and sintering mandrel 2.3 is inserted in whole the boring in first 1.6 of colding pressing, to form sintering module zoarium 3.
Step 102, the sintering module that installs fit 3 is put into agglomerating furnace furnace chamber A as shown in Figure 9, and connect protective gas 5, when lighting at gas vent when forming venting flame 6, agglomerating furnace begins heating.
Step 103, after the furnace chamber temperature reaches 550 ℃～750 ℃ and kept 20-40 minute; Then temperature is elevated to 800 ℃ ± 15 ℃ and kept 20-40 minute; Again temperature is elevated to 880 ℃ ± 15 ℃ and kept 20-40 minute;
Step 104; Again temperature is elevated to 900 ℃-1000 ℃, and starts jacking system agglomerating furnace up-down pressing plate is risen, the tubular body bottom in the sintering module zoarium is pressed on the agglomerating furnace top board; Simultaneously up-down pressing plate and/or top board are forced into and are not less than 7 tons, the pressurization duration is not less than 5 minutes; Temperature is remained on 900 ℃-1000 ℃, and kept 20-40 minute;
Step 105, agglomerating furnace is lowered the temperature,, sintering module fit 3 is taken out and cooling when temperature is reduced to when being lower than 200 ℃.
Wherein, in the step 101, sintering module fit 3 can be for all-in-one-piece, also can be for split type.
All-in-one-piece can for: on tubular body 1.3, suppress a cutter piece 1.1, form integral body cold pressing bore first 1.6, and the position at the mouth of a river 1.5 put into mouth of a river block 2.2, put into the cavity volume of sintering former 2.1 then together, put into sintering mandrel 2.3 at last.
Split type can for: the powder 1.5 that will mix is on request evenly put into the cavity that is made up of the former 1.2 of colding pressing, low punch 1.1 and the mandrel 1.3 of colding pressing; Putting into then colds pressing goes up towards 3.1; The 450Mpa that on hydraulic press, exerts pressure in the direction of arrows is the cutter head 3.2 of colding pressing after the demoulding.
For all-in-one-piece; Can adopt mode shown in figure 12: an end that has stepped convexity at tubular body 1.3; Being used for of mixing made the powder 6 of cutter piece 1.1 and put into manufacturing equipment uniformly, and in tubular body 1.3, put into the mandrel 7 of colding pressing.The low punch 5.1 of die 5 of will colding pressing the then 450Mpa that exerts pressure, being after the demoulding colds pressing wholely bores first 1.6.
Certainly; The present invention also can have other embodiment; Under the situation that does not deviate from spirit of the present invention and essence thereof; The person of ordinary skill in the field works as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (3)
1. the manufacturing approach of a high adhesion strength diamond engineering thin wall drilling bit, said high adhesion strength diamond engineering thin wall drilling bit comprises: bore first, bore tail and connector;
The end face at the first top of said brill is provided with the cutter piece and the mouth of a river that distributes along circumferentially, and said cutter piece is the convexity that is arranged on the said end face and extends vertically, forms the mouth of a river between two adjacent cutter pieces; The first bottom of said brill is provided with first bindiny mechanism to connect said connector one end;
Tubular bodies top end face is provided with along circumferential continuous or interrupted stepped convexity; Said cutter piece one end is provided with and the suitable depression of said stepped convexity, and said cutter piece is socketed on the said stepped convexity,
One end of said brill tail is provided with second bindiny mechanism to connect the other end of said connector;
It is characterized in that said method comprises:
Step 101, tubular body and cutter piece are formed cold pressing and wholely bore firstly, and mouth of a river cushion block is placed on the described mouth of a river; And the said whole head of boring that colds pressing is placed in the sintering former, and the sintering mandrel is inserted in the said whole head of boring that colds pressing, fit to form the sintering module;
Step 102, the sintering module zoarium that installs is put into the agglomerating furnace furnace chamber, and connect protective gas, when lighting at gas vent when forming venting flame, agglomerating furnace begins heating;
Step 103, after the furnace chamber temperature reaches 550 ℃～750 ℃ and kept 20-40 minute; Then temperature is elevated to 800 ℃ ± 15 ℃ and kept 20-40 minute; Again temperature is elevated to 880 ℃ ± 15 ℃ and kept 20-40 minute;
Step 104; Again temperature is elevated to 900 ℃-1000 ℃, and starts jacking system agglomerating furnace up-down pressing plate is risen, the tubular body bottom in the sintering module zoarium is pressed on the agglomerating furnace top board; Simultaneously up-down pressing plate and/or top board are forced into and are not less than 7 tons, the pressurization duration is not less than 5 minutes; Temperature is remained on 900 ℃-1000 ℃, and kept 20-40 minute;
Step 105, agglomerating furnace is lowered the temperature, when temperature is reduced to when being lower than 200 ℃, take out and cooling the sintering module is fit.
2. the manufacturing approach of high adhesion strength diamond engineering thin wall drilling bit according to claim 1 is characterized in that, said step 101 is specially:
Step 101a, powder is pressed into the cutter piece earlier, then cutter piece and mouth of a river block is put at interval the cavity volume of sintering former, put into the tubular body then, put into the sintering mandrel at last through cold compression molding method.
3. the manufacturing approach of high adhesion strength diamond engineering thin wall drilling bit according to claim 1 is characterized in that, said step 101 is specially:
Step 101b, powder and tubular body are pressurizeed simultaneously through cold compression molding method; Formation integral body is colded pressing and is bored head, and puts into mouth of a river block in the position at the mouth of a river, puts into the cavity volume of sintering former then together; And the sintering mandrel is inserted in the said whole head of boring that colds pressing, fit to form the sintering module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010160395A CN101824967B (en) | 2010-04-30 | 2010-04-30 | Novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010160395A CN101824967B (en) | 2010-04-30 | 2010-04-30 | Novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN101824967A CN101824967A (en) | 2010-09-08 |
| CN101824967B true CN101824967B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010160395A Expired - Fee Related CN101824967B (en) | 2010-04-30 | 2010-04-30 | Novel high adhesion strength diamond engineering thin wall drilling bit and manufacturing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128013B (en) * | 2011-03-07 | 2013-09-25 | 佛山市南海锐力臣工具有限公司 | Diamond impregnated wire line coring geological bit and manufacturing method thereof |
| CN102275228B (en) * | 2011-07-21 | 2013-10-02 | 江苏华昌工具制造有限公司 | Brazing diamond core drill bit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108125A (en) * | 1985-11-05 | 1987-05-06 | 武汉地质学院 | Hard and compact " skid " stratum cold galvanising diamond Special drilling bit and cold galvanising composite sheet oil bit |
| CN2270113Y (en) * | 1996-01-10 | 1997-12-10 | 黄新农 | Self-sharpening diamond bit of drilling machine |
| CN2319562Y (en) * | 1998-01-21 | 1999-05-19 | 张衡 | Thin wall bit of electroplated diamond |
| CN2585961Y (en) * | 2002-09-14 | 2003-11-12 | 彭明保 | Thin wall diamond engineering bit |
-
2010
- 2010-04-30 CN CN201010160395A patent/CN101824967B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108125A (en) * | 1985-11-05 | 1987-05-06 | 武汉地质学院 | Hard and compact " skid " stratum cold galvanising diamond Special drilling bit and cold galvanising composite sheet oil bit |
| CN2270113Y (en) * | 1996-01-10 | 1997-12-10 | 黄新农 | Self-sharpening diamond bit of drilling machine |
| CN2319562Y (en) * | 1998-01-21 | 1999-05-19 | 张衡 | Thin wall bit of electroplated diamond |
| CN2585961Y (en) * | 2002-09-14 | 2003-11-12 | 彭明保 | Thin wall diamond engineering bit |
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| CN101824967A (en) | 2010-09-08 |
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Granted publication date: 20121003 Termination date: 20130430 |