CN102454359A - Integral casting cylinder block and manufacturing method - Google Patents
Integral casting cylinder block and manufacturing method Download PDFInfo
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- CN102454359A CN102454359A CN2010105201687A CN201010520168A CN102454359A CN 102454359 A CN102454359 A CN 102454359A CN 2010105201687 A CN2010105201687 A CN 2010105201687A CN 201010520168 A CN201010520168 A CN 201010520168A CN 102454359 A CN102454359 A CN 102454359A
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Abstract
The invention relates to a drilling exploration and oil-gas drilling mechanism, in particular to an integral casting cylinder block of a jet-flow type hydraulic impactor for percussive-rotary drilling of oil-gas drilling and geotechnical drilling. In the invention, the integral casting cylinder block is formed in an integral casting manner, thereby fundamentally avoiding the problems of sealing failure, weld cracking and the like existing in the traditional cylinder block of the impactor; the cylinder block is made of a novel material, i.e. HHD (High chromium Hot Working Die) steel, thereby the problems of abrasion, corrosion, deformation and the like of the cylinder block of the impactor are solved; the inner surface of the cylinder block is processed by adopting a liquid nitridation and oxidation technology so that the inner wall of the cylinder block is uniformly nitridized; and therefore, the abrasive resistance and the lubrication performance of the inner wall of the cylinder block are increased, and the whole service life of the cylinder block is prolonged.
Description
Technical field
The present invention relates to the cylinder mechanism of rock drilling and oil drilling speed-raising, the cast blocks and the manufacturing approach of the integral structure of the fluidic efflux hammer that particularly surges with fluidic efflux hammer.
Background technology
The present existing jetting type impactor that surges generally is made up of parts such as fluidic, cylinder body, piston, block stamps; Between the parts such as cylinder body, cylinder cap, element multiple sealing means is arranged; But the influence of restriction of impactee cylinder body self structure form and service condition; All there is deficiency in every kind of sealing means and the jetting type sealing of surging between the impactor critical piece was lost efficacy easily, and then influences the normal work of impactor.
CN2385068Y discloses a kind of deep-well drilling jet flow type shocker that surges; Between inner casing and the outer shell rubber seal is set; Make between bar shaped gap and the outer inside wall of cylinder of inner casing lateral wall and form seal channel, make the purpose that gets into the cylinder body cavity of resorption from the high-pressure fluid of fluidic thereby reach.This seal form is in the instructions for use that can satisfy oil drilling and probing basically.But, in drilling well and drilling process, along with the increase of drilling depth; Temperature constantly raises, the erosion of drilling fluid in addition, the wearing and tearing between the component; Rubber seal easy ageing, breakage and cause seal failure, and then cause the operate as normal and the application life of the instrument that influences.
Sealing among the CN2550477Y between the critical piece of disclosed a kind of jet flow type shocker improves; Change the closed channel that uses the rubber seal sealing and form into integrated passage, promptly the side chamber channel welds on the cylinder body is sealed with a circular-arc long-bar metal sheet that matches with the cylindricality outer surface of cylinder block.This sealing means in use exists the welding position cracking to cause the potential risk of seal failure.
CN201433708Y discloses a kind of jet flow type shocker cylinder body and cylinder cap structure; This jetting type surges impactor cylinder body and cylinder cap through the weldering edge with paste and become one; But in actual application; Easy of crack causes leaking because the repeated stock of piston and block stamp, weldering edge and stickup position exist equally, the phenomenon of pressure release, thereby influences the application life of impactor.
Because field condition is abominable, more than several kinds of sealing means all fail to stand the long-time erosion of mud, the bulk life time of impactor is lower.Frequent on the one hand making a trip consumes huge drilling cost, because the suffered influence factor of sealing ring is many, the impactor service behaviour is unstable, is unfavorable for that instrument breaks rock on the other hand.
Summary of the invention
Surge impactor in application process in order to solve jetting type, and phenomenons such as the seal failure that cylinder body occurs, weld cracking, quality instability the invention provides the cast blocks and the manufacturing approach of the integral structure in a kind of fluidic efflux hammer that surges.
The technical scheme that the present invention adopts is following:
Integrated cast blocks, described cylinder body adopt the moulding of monoblock cast mode.
Structurally, an end has piston hole 5 in the said cylinder body, and the other end has two holes, is respectively that piston upper chamber advances drain hole and the piston cavity of resorption advances drain hole; Wherein epicoele advances drain hole and directly communicates with piston hole, and cavity of resorption advances drain hole and advances the draining runner through the piston cavity of resorption and communicate with piston hole;
Advance at said piston cavity of resorption on the inwall of draining runner and be designed with shaft orientation reinforcing rib.The effect of reinforcing rib is to improve cylinder strength, reduce cylinder body and under responsive to axial force, produce deflection, and then it is free to guarantee that piston moves back and forth in cylinder body.Reinforcing rib advances the draining runner with said piston cavity of resorption and is divided into two, and reinforcing rib does not influence the proper flow of fluid.
Said cylinder body adopts high-performance heat to be mould steel HHD (High Hot-work Die Steel), and this kind material has advantages such as high strength, high abrasion, high tenacity, suitable nitrogenize, and has the favorable mechanical performance.
In addition, said inboard wall of cylinder block surface employing nitrogenize-oxidized surface PROCESS FOR TREATMENT.
Make the method for described integrated cast blocks, said method comprising the steps of:
(1) selection: select for use high-performance heat to do mould steel;
(2) casting;
(3) surfacing: inboard wall of cylinder block is carried out even nitrogenize, carry out oxidation processes then, the nitrogenize rear oxidation can improve the corrosion resistance and the abrasion resistance of nitriding layer.
Said step (2) specifically may further comprise the steps:
(21) prepare Modeling Material, make core, moulding then;
(22) prepare molten material, use intermediate frequency furnace fusing high-performance heat to do mould steel then;
(23) cast;
(24) casting falling sand;
(25) cleaning: remove with one voice, rising head and burr;
(26) foundry goods inspection;
(27) annealing;
(28) warehouse-in.
Compared with prior art, beneficial effect of the present invention is:
(1) cylinder body adopts the moulding of monoblock cast mode, has replaced welding procedure of the prior art, has fundamentally avoided in the past in the impactor cylinder body problem, the problem includes: problems such as seal failure, weld crackings;
(2) adopt new material HHD steel among the present invention, solved the problems such as wearing and tearing, erosion, distortion of impactor cylinder body;
(3) cylinder surface adopts bath nitriding+oxidation technology to handle, and makes inboard wall of cylinder block by evenly nitrogenize, has both improved the abrasion resistance of inboard wall of cylinder block, improves its lubricity again, has improved the whole service life of cylinder body.
Description of drawings
Fig. 1 is the surge partial structurtes sketch map of impactor of jetting type;
Fig. 2 is the structural representation of the integrated cast blocks of the present invention;
Fig. 3 is the step block diagram of the processing method of the integrated cast blocks of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, said cylinder body 1 is installed in jetting type and surges in the urceolus of impactor, and piston 2 is housed in the cylinder body, at an end cap of cylinder body 1 cylinder cap 3 is arranged.
As shown in Figure 2, described cylinder body 1 adopts the moulding of monoblock cast mode.Structurally, an end has piston hole 6 in the said cylinder body 1, and the other end has two holes, is respectively that piston upper chamber advances drain hole 7 and the piston cavity of resorption advances drain hole 8; Wherein epicoele advances drain hole 7 and directly communicates with piston hole 6, and cavity of resorption advances drain hole 8 and advances draining runner 5 through the piston cavity of resorption and communicate with piston hole 6;
Advance at said piston cavity of resorption on the inwall of draining runner 5 and be designed with shaft orientation reinforcing rib 4.The effect of shaft orientation reinforcing rib 4 is the intensity that improves cylinder body 1, reduce cylinder body 1 and under responsive to axial force, produce deflection, and then it is free to guarantee that piston moves back and forth in cylinder body 1.Shaft orientation reinforcing rib 4 advances draining runner 5 with said piston cavity of resorption and is divided into two, and shaft orientation reinforcing rib 4 does not influence the proper flow of fluid.
Described cylinder body 1 adopts the HHD steel to process, and this material has advantages such as high strength, high abrasion, high tenacity, suitable nitrogenize, and has the favorable mechanical performance.The mechanical performance of HHD steel is as shown in table 1 below:
| Experimental temperature, ℃ | Tensile strength, MPa | Yield strength, MPa | Elongation per unit length, % | The contraction percentage of area, % | Hardness, HRC |
| 26.7 | ?1800 | ?1295 | 8.0 | 19.5 | ?48.6 |
| 200 | ?1660 | ?1370 | 5.3 | 18.8 | |
| 400 | ?1575 | ?1340 | 5.3 | 26 | |
| 600 | ?983 | ?888 | 5.5 | 24.5 |
Table 1
Described cylinder body 1 inner wall surface adopts nitrogenize-oxidized surface PROCESS FOR TREATMENT.
Make the method for described integrated cast blocks, as shown in Figure 3, said method comprising the steps of:
(1) selection: select for use high-performance heat to do mould steel;
(2) casting;
(3) surfacing is carried out even nitrogenize to inboard wall of cylinder block, carries out oxidation processes then.
Said step (2) specifically may further comprise the steps:
(21) prepare Modeling Material, make core, moulding then;
(22) prepare molten material, use intermediate frequency furnace fusing high-performance heat to do mould steel then;
(23) cast;
(24) casting falling sand;
(25) cleaning: remove with one voice, rising head and burr;
(26) foundry goods inspection;
(27) annealing;
(28) warehouse-in.
Through the size of experimental measurement cylinder body 1 after before use, show that the cylinder body that this kind method processes is wear-resistant, anti-impact erosion, good mechanical property, the life-span of having improved the impactor cylinder body greatly.
Technique scheme is one embodiment of the present invention; For those skilled in the art; On the basis that the invention discloses application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described method of the above-mentioned specific embodiment of the present invention; Therefore the mode of front description is preferably, and does not have restrictive meaning.
Claims (5)
1. integrated cast blocks, said cylinder body are used for the jetting type impactor that surges, and it is characterized in that:
Described cylinder body adopts the moulding of monoblock cast mode.
2. integrated cast blocks according to claim 1 is characterized in that:
An end has piston hole in the said cylinder body, and the other end has two holes, is respectively that piston upper chamber advances drain hole and the piston cavity of resorption advances drain hole; Wherein epicoele advances drain hole and directly communicates with piston hole, and cavity of resorption advances drain hole and advances the draining runner through the piston cavity of resorption and communicate with piston hole;
Advance at said piston cavity of resorption on the inwall of draining runner and be designed with shaft orientation reinforcing rib.
3. integrated cast blocks according to claim 1 and 2 is characterized in that:
Described cylinder body is selected for use high-performance heat to do mould steel and is processed.
4. integrated cast blocks according to claim 1 and 2 is characterized in that:
Described inner surface of cylinder block adopts nitrogenize-oxidized surface PROCESS FOR TREATMENT.
5. method of making claim 1 or 2 described integrated cast blocks is characterized in that: said method comprising the steps of:
(1) selection: select for use high-performance heat to do mould steel;
(2) casting;
(3) surfacing: inboard wall of cylinder block is carried out even nitrogenize, carry out oxidation processes then.
Said step (2) specifically may further comprise the steps:
(21) prepare Modeling Material, make core, moulding then;
(22) prepare molten material, use intermediate frequency furnace fusing high-performance heat to do mould steel then;
(23) cast;
(24) casting falling sand;
(25) cleaning: remove with one voice, rising head and burr;
(26) foundry goods inspection;
(27) annealing;
(28) warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105201687A CN102454359B (en) | 2010-10-22 | 2010-10-22 | Integral casting cylinder block and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105201687A CN102454359B (en) | 2010-10-22 | 2010-10-22 | Integral casting cylinder block and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102454359A true CN102454359A (en) | 2012-05-16 |
| CN102454359B CN102454359B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105201687A Active CN102454359B (en) | 2010-10-22 | 2010-10-22 | Integral casting cylinder block and manufacturing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817554A (en) * | 2012-07-30 | 2012-12-12 | 常州大学 | Hydraulic-drive hammer with slurry shunting and side wall sealing functions |
| CN104858363A (en) * | 2014-02-21 | 2015-08-26 | 吉林天茂科技有限公司 | Method for molding hydraulic impactor cylinder by using whole casting method |
| CN109513880A (en) * | 2018-11-27 | 2019-03-26 | 汪学军 | A method of using the molding hydraulic impacter cylinder body of monoblock cast method |
| CN113236116A (en) * | 2021-06-23 | 2021-08-10 | 重庆科技学院 | Composite impact drilling speed-increasing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188586B (en) * | 2018-11-15 | 2023-05-26 | 中国石油化工股份有限公司 | Electric control piston type while-drilling bypass valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385068Y (en) * | 1998-05-15 | 2000-06-28 | 长春科技大学 | Deep well drilling fluid dynamic jet impacter |
| CN2763452Y (en) * | 2004-12-29 | 2006-03-08 | 大港油田集团有限责任公司 | Hydraulic impactor for well drilling |
| CN2906023Y (en) * | 2006-06-02 | 2007-05-30 | 长江大学 | Hydraulic lung-shape valve type jet impacter |
| CN102052056A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Hydraulic jet type impactor |
-
2010
- 2010-10-22 CN CN2010105201687A patent/CN102454359B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385068Y (en) * | 1998-05-15 | 2000-06-28 | 长春科技大学 | Deep well drilling fluid dynamic jet impacter |
| CN2763452Y (en) * | 2004-12-29 | 2006-03-08 | 大港油田集团有限责任公司 | Hydraulic impactor for well drilling |
| CN2906023Y (en) * | 2006-06-02 | 2007-05-30 | 长江大学 | Hydraulic lung-shape valve type jet impacter |
| CN102052056A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Hydraulic jet type impactor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817554A (en) * | 2012-07-30 | 2012-12-12 | 常州大学 | Hydraulic-drive hammer with slurry shunting and side wall sealing functions |
| CN102817554B (en) * | 2012-07-30 | 2015-02-04 | 常州大学 | Hydraulic-drive hammer with slurry shunting and side wall sealing functions |
| CN104858363A (en) * | 2014-02-21 | 2015-08-26 | 吉林天茂科技有限公司 | Method for molding hydraulic impactor cylinder by using whole casting method |
| CN109513880A (en) * | 2018-11-27 | 2019-03-26 | 汪学军 | A method of using the molding hydraulic impacter cylinder body of monoblock cast method |
| CN113236116A (en) * | 2021-06-23 | 2021-08-10 | 重庆科技学院 | Composite impact drilling speed-increasing device |
| CN113236116B (en) * | 2021-06-23 | 2023-10-27 | 重庆科技学院 | Composite impact drilling speed increasing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102454359B (en) | 2013-12-04 |
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