CN105756114A - Steel chisel for hydraulic breaker - Google Patents
Steel chisel for hydraulic breaker Download PDFInfo
- Publication number
- CN105756114A CN105756114A CN201610272581.3A CN201610272581A CN105756114A CN 105756114 A CN105756114 A CN 105756114A CN 201610272581 A CN201610272581 A CN 201610272581A CN 105756114 A CN105756114 A CN 105756114A
- Authority
- CN
- China
- Prior art keywords
- pricker
- chisel
- bore bit
- tenon
- hammer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a steel chisel for a hydraulic breaker, and belongs to the technical field of mine operation tools.The steel chisel comprises a chisel body, a chisel head and a chisel hammer.The chisel head and one end of the chisel body are in matched connection, and the chisel hammer and the other end of the chisel body are in matched connection.The steel chisel is characterized in that the chisel body is a die forging chisel body made of 42CrMo steel.The chisel head is a die forging chisel head made of 5CrNiMo steel or 6CrW2Si steel.The chisel hammer is a die forging chisel hammer also made of 5CrNiMo steel or 6CrW2Si steel.A chisel body center hole is formed in the center of the chisel body and penetrates from one end, in the length direction, of the chisel body to the other end of the chisel body.The advantage of being high in manufacturing efficiency is achieved, and the industrial production requirements can be met.Excellent hardness can be guaranteed.Materials are saved, the functions of vibration reduction and counter impact reduction on the hydraulic breaker are achieved, and the service life of hydraulic breaking equipment can be greatly prolonged.Excellent fracturing, bending and cracking resisting performance is guaranteed, and the service life can be prolonged.
Description
Technical field
The invention belongs to mine operation technical field of tools, be specifically related to the drill rod of a kind of hydraulic breaking hammer.
Background technology
As is known in the industry, drill rod is to relate to the indispensable instrument in the operation of ore deposit, and owing to drill rod belongs to attrition component, thus in the China as the big mineral products state in third place in the world, the consumption that makes of drill rod constantly increases in recent years, but also consumes substantial amounts of high-quality steel resources simultaneously.Because to hard rock ore deposit, rock and slag etc. broken time, the head of drill rod is just quickly worn or even ruptures, can only throw away the old and change into the new, again because the material of drill rod is mostly the chrome molybdenum steel grade of high-quality, thus price is higher, for a diameter be 140 length be 1.2-1.5m chrome molybdenum drill rod, current price is more than 7000 yuan.In view of this, by improving the material of drill rod and simultaneously improving the structure of drill rod and can alleviate aforementioned technical problem to a certain extent.
Disclosed Chinese patent literature can be seen in the technical information of drill rod, as Authorization Notice No. CN201770708U recommends there be " high-strength fan-shaped clad steel chisel ", this patent formula only sets a locating slot in the rear end of drill rod body, after the classified quenching of drill rod body, the hardness of front end is HRC50-60, and the hardness of rear end is HRC50-53(description the 0008th and 0013 section).Although this patent can cash the technique effect recorded in the technique effect hurdle of its description to a certain extent, but there is following shortcoming: one, due to the hardness of front end (i.e. bore bit) and the hardness difference of rear end (i.e. pricker body) inconspicuous, thus it is insufficient for the expection of business circles service life；Its two, although the technique that the not mentioned drill rod body of patent shapes, but obtain by forging especially in conjunction with known its of schematic structure from the full text of its description, and it be big to forge the labor intensity not only existing workman, and inefficient problem；Its three, have a surplus owing to the hardness of the front and back ends of drill rod body is paid close attention to by this patent, but the antiflex cracking bending resistance of afterbody attached undue importance to one thing to the neglect of the other to some extent；Its four, owing to the material of whole drill rod body is made no exception, namely have employed commaterial, thus be both unfavorable for reasonably economizing on resources, be also not easy to reduce cost.And for example CN204163749U is provided with " drill rod ", and this patent formula is essentially boring drill rod, namely belongs to drill bit category, specifically can referring to this patent specification the 0009th section.
" two metals connect drill rod from expanded joint " that the typical Authorization Notice No. CN204899809U as proposed by Chinese Shanghai castle industrial corporation introduces, drill rod body is divided into three sections and is integrally formed (description the 0027th section) by connecing from expanded joint by this patent.And this patent it is taught that head (bore bit) adopts the high rigidity impact-resistant alloy steel of more than hardness HRC63, afterbody (i.e. pricker hammer, as follows) adopt the 35SiMn that impact strength is high, middle part (patent claims king-rod) adopts the chrome-manganese-silicon steel of high intensity, specifically can referring to description the 0036th section.
Though above-mentioned CN204899809U has achievement as the material at afterbody and middle part for reducing drill rod cost using 35SiMn and chrome-manganese-silicon steel respectively, but antiflex cracking is counter-bending and anti-fragmentation performance is still fragility, and owing to adopting high rigidity impact-resistant alloy steel (HRC63) as the material of head, thus flintiness is still difficult to meet the expection of industry, moreover this patent does not provide the enlightenment of the concrete trade mark of high rigidity impact-resistant alloy steel, and does not provide the enlightenment that head, middle part and afterbody are prepared by what technique yet.
For above-mentioned prior art, the applicant has done positive and useful exploration, and technical scheme described below produces under this background.
Summary of the invention
The task of the present invention be in that to provide a kind of contribute to significantly improving manufacture efficiency and use and meet industrialization production requirements, be of value to the antiflex cracking counter-bending chip resistance performance ensureing the rockiness of bore bit and the excellent toughness of pricker body and pricker hammer and use and significantly extend service life, be conducive to saving significantly on material and simultaneously work as the vibration damping to hydraulic breaking hammer and anti-percussion and use the drill rod of the hydraulic breaking hammer in the service life improving hydraulic crushing equipment.
The task of the present invention is performed by, a kind of drill rod of hydraulic breaking hammer, the pricker hammer that the bore bit that connects including one end of pricker body and pricker body and the other end with pricker body connect, it is characterized as being: the described die forging pricker body that pricker body is 42CrMo steel, described bore bit is the die forging bore bit of 5CrNiMo steel or 6CrW2Si steel, described pricker hammer is similarly the die forging pricker hammer of 5CrNiMo steel or 6CrW2Si steel, wherein, constituting in the middle position of described pricker body and have a pricker body centre bore, one end of the length direction of this pricker body centre bore self-fluxing body is through to the other end.
In a specific embodiment of the present invention, expanding towards one end of described bore bit at described pricker body and be provided with a bore bit tenon mating cavity, and have a bore bit tenon at bore bit towards the narrow contracting in one end of pricker body, this bore bit tenon coordinates with bore bit tenon mating cavity Tenon.
In another specific embodiment of the present invention, described bore bit tenon mating cavity is circular cavity, and described bore bit tenon is cylindrical.
In another specific embodiment of the present invention, a pricker body weld bond is had towards composition on one end end face of described bore bit at described pricker body, and have a bore bit weld bond at bore bit towards composition on one end end face of pricker body, space between pricker body weld bond and bore bit weld bond is configured to weld seam, and this weld seam is crammed by solder layer.
In another specific embodiment of the present invention, the section configuration of described weld seam is in the shape of the letter V.
Also having in a specific embodiment in the present invention, constitutes back to one end of described pricker body at described bore bit and has chisel edge, and the quantity of this chisel edge has three to six.
In more and in a specific embodiment of the present invention, described pricker body is configured to pricker body tail end towards one end that described pricker is hammered into shape, constitute in the middle position of this pricker body tail end and have a pricker hammer tenon mating cavity, and it being extended with a pricker hammer tenon towards the middle position of one end end face of pricker body with narrow contracting state at pricker hammer, this pricker hammer tenon and pricker hammer tenon mating cavity Tenon coordinates.
The present invention's and then in a specific embodiment, constitute on described pricker body and in the position of the right-hand member corresponding to described pricker body tail end and have pricker body guide sliding part.
In the present invention again more and in a specific embodiment, the shape of cross section of described pricker body guide sliding part is rectangular.
In again and then in a specific embodiment of the present invention, described pricker hammer tenon mating cavity is circular cavity, and described pricker hammer tenon is cylindrical structure.
Technical scheme provided by the invention have the technical effect that the die forging pricker body owing to pricker body is 42CrMo steel, bore bit is the die forging bore bit of 5CrNiMo or 6CrW2Si steel and die forging pricker that pricker hammer is 5CrNiMo or 6CrW2Si steel is hammered into shape, thus have and manufacture the strong point that efficiency is high, industrialization production requirements can be met；Due to the die forging bore bit that bore bit is 5CrNiMo or 6CrW2Si steel, thus the rockiness of excellence can be ensured；Due to the die forging pricker body that pricker body is 42CrMo steel, and offer pricker body centre bore in central authorities, thus not only can save material but also the vibration damping to hydraulic breaking hammer can be played and reduce anti-percussion, be advantageous to improve the service life of hydraulic crushing equipment；The die forging pricker being 5CrNiMo or 6CrW2Si steel due to pricker hammer is hammered into shape, thus can ensure and be advantageous to the counter-bending chip resistance performance of antiflex cracking of excellence extend service life.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is the sectional view of Fig. 1.
Detailed description of the invention
Embodiment 1:
Refer to Fig. 1 and Fig. 2, the pricker hammer 3 that bore bit 2 that one end of pricker body 1 and pricker body 1 connects and the other end with pricker body 1 connect.Technical essential as technical scheme provided by the invention: aforesaid pricker body 1 is the die forging pricker body of 42CrMo steel, aforesaid bore bit 2 is the die forging bore bit of 5CrNiMo steel, aforesaid pricker hammer 3 is similarly the die forging pricker hammer of 5CrNiMo steel, wherein, constituting in the middle position of pricker body 1 and have a pricker body centre bore 11, one end of the length direction of this pricker body centre bore 11 self-fluxing body 1 is through to the other end.It follows that owing to the present invention obtains pricker body 1, bore bit 2 and pricker hammer 3 by the mode of die forging, thus there is the strong point that make efficiency is high.
Closing one end (left end) of 2 at aforementioned pricker body 1 towards aforementioned pricker to expand and be provided with a bore bit tenon mating cavity 12, and have a bore bit tenon 21 at bore bit 2 towards one end (right-hand member) the narrow contracting of pricker body 1, this bore bit tenon 21 coordinates with bore bit tenon mating cavity 12 Tenon.
In the present embodiment, aforesaid bore bit tenon mating cavity 12 is circular cavity, aforesaid bore bit tenon 2 is cylindrical, and there is a pricker body weld bond 13 at pricker body 1 towards (left end end face) composition on one end end face of aforementioned bore bit 2, and have a bore bit weld bond 22 at bore bit 2 towards (right-hand member end face) composition on one end end face of pricker body 1, space between pricker body weld bond 13 and bore bit weld bond 22 is configured to weld seam, and this weld seam is crammed by solder layer 4, and the section configuration of weld seam is in the shape of the letter V.
As shown in the above description, crammed by solder layer 4 by welding in the weld seam of the V-shaped being collectively forming with bore bit weld bond 14 by pricker body weld bond 13 again when bore bit tenon 21 and bore bit tenon mating cavity 12 Tenon coordinate after namely with self-expanding connection, make bore bit 2 and pricker body 1 reliable connection be integrated.
Shown in Fig. 1 and Fig. 2, constituting in one end back to aforementioned pricker body 1 of aforementioned bore bit 2 and right-hand member and have chisel edge 23, in the present embodiment, the quantity of chisel edge 23 has four, but is based on needing and changeable, for instance be three, five or six.
Please continue to refer to Fig. 1 and Fig. 2, one end (right-hand member) that aforementioned pricker body 1 hammers 3 into shape towards aforementioned pricker is configured to pricker body tail end 14, constitute in the middle position of this pricker body tail end 14 and have a pricker hammer tenon mating cavity 141, and hammer the middle position of the 3 one end end faces towards pricker body 1 into shape at pricker and be extended with a pricker hammer tenon 31 with narrow contracting state, this pricker hammer tenon 31 is hammered tenon mating cavity 141 Tenon into shape with pricker and is coordinated, and also can hammer into shape at pricker and make both be reliably connected by welding between 3 and the mating surface of pricker body tail end 14, or bore bit tenon 31 and bore bit tenon mating holes 141 screw thread are connected, joggle and screw thread can also be connected and use.
Shown in Fig. 1 and Fig. 2, constituting and have pricker body guide sliding part 15 on aforesaid pricker body 1 and in the position of the right-hand member corresponding to aforementioned pricker body tail end 14, in a state of use, this pricker body guide sliding part 15 matches with hydraulic breaking hammer.
In the present embodiment, the shape of cross section of aforesaid pricker body guide sliding part 15 is rectangular；Aforementioned pricker hammer self-criticism mating cavity 141 is circular cavity, and aforesaid pricker hammer tenon 31 is in cylindrical structure.
Embodiment 2:
Bore bit 2 only changing into the mould cone steel sharpening head of 6CrW2Si steel, pricker is hammered into shape the 3 die forging pricker hammers changing 6CrW2Si steel into simultaneously, all the other are all with the description to embodiment 1.
In above-described embodiment 1 and 2, although the steel grade that bore bit 2 hammers 3 into shape with pricker is identical, but in the fabrication process, both hardness is different, specifically, the hardness of pricker hammer 3 is slightly below the hardness of bore bit 2.The contrast test that drill rod of the present invention and the drill rod in prior art are used as is shown: the service life of the drill rod of hydraulic breaking hammer of the present invention can extend 2 to 3 times.
Claims (10)
1.A kind of drill rod of hydraulic breaking hammer, including pricker body (1), pricker hammer (3) that the bore bit (2) that connects with one end of pricker body (1) and the other end with pricker body (1) connect, it is characterized in that: the die forging pricker body that described pricker body (1) is 42CrMo steel, the die forging bore bit that described bore bit (2) is 5CrNiMo steel or 6CrW2Si steel, described pricker hammer (3) is similarly the die forging pricker hammer of 5CrNiMo steel or 6CrW2Si steel, wherein, constitute in the middle position of described pricker body (1) and have pricker body centre bore (11), one end of the length direction of this pricker body centre bore (11) self-fluxing body (1) is through to the other end.
2.The drill rod of hydraulic breaking hammer according to claim 1, it is characterized in that described pricker body (1) towards described bore bit (2) one end expand be provided with bore bit tenon mating cavity (12), and having a bore bit tenon (21) at bore bit (2) towards the narrow contracting in one end of pricker body (1), this bore bit tenon (21) coordinates with bore bit tenon mating cavity (12) Tenon.
3.The drill rod of hydraulic breaking hammer according to claim 2, it is characterised in that described bore bit tenon mating cavity (12) is circular cavity, described bore bit tenon (2) is cylindrical.
4.The drill rod of hydraulic breaking hammer according to claim 1 and 2, it is characterized in that there is pricker body weld bond (13) described pricker body (1) towards composition on one end end face of described bore bit (2), and have a bore bit weld bond (22) at bore bit (2) towards composition on one end end face of pricker body (1), space between pricker body weld bond (13) and bore bit weld bond (22) is configured to weld seam, and this weld seam is crammed by solder layer (4).
5.The drill rod of hydraulic breaking hammer according to claim 4, it is characterised in that the section configuration of described weld seam is in the shape of the letter V.
6.The drill rod of hydraulic breaking hammer according to claim 4, it is characterised in that described bore bit (2) back to described pricker body (1) one end constitute have chisel edge (23), the quantity of this chisel edge (23) has three to six.
7.The drill rod of hydraulic breaking hammer according to claim 1, it is characterized in that one end that described pricker body (1) hammers (3) into shape towards described pricker is configured to pricker body tail end (14), constitute in the middle position of this pricker body tail end (14) and have pricker hammer tenon mating cavity (141), and hammer (3) middle position towards one end end face of pricker body (1) into shape at pricker and be extended with pricker hammer tenon (31) with narrow contracting state, this pricker hammer tenon (31) is hammered tenon mating cavity (141) Tenon into shape with pricker and is coordinated.
8.The drill rod of hydraulic breaking hammer according to claim 7, it is characterised in that above and have pricker body guide sliding part (15) in the position of the right-hand member corresponding to described pricker body tail end (14) composition at described pricker body (1).
9.The drill rod of hydraulic breaking hammer according to claim 7, it is characterised in that the shape of cross section of described pricker body guide sliding part (15) is rectangular.
10.The drill rod of hydraulic breaking hammer according to claim 7, it is characterised in that described pricker hammer tenon mating cavity (141) is circular cavity, described pricker hammer tenon (31) is in cylindrical structure。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272581.3A CN105756114A (en) | 2016-04-28 | 2016-04-28 | Steel chisel for hydraulic breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272581.3A CN105756114A (en) | 2016-04-28 | 2016-04-28 | Steel chisel for hydraulic breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756114A true CN105756114A (en) | 2016-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610272581.3A Pending CN105756114A (en) | 2016-04-28 | 2016-04-28 | Steel chisel for hydraulic breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105756114A (en) |
Citations (6)
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| CN202165081U (en) * | 2011-07-05 | 2012-03-14 | 江苏创一精锻有限公司 | High-strength high-ductility novel integrated cutting pick |
| KR20120043875A (en) * | 2010-10-27 | 2012-05-07 | 전주대학교 산학협력단 | Connection structure of cemented carbide blank material and shank material for micro cutting tool and its method |
| CN202324044U (en) * | 2011-12-15 | 2012-07-11 | 湖南科技大学 | Hydraulic breaking hammer drill rod structure |
| CN202810850U (en) * | 2012-09-04 | 2013-03-20 | 平顶山市中矿机械制造有限公司 | Friction-welding bimetal hard rock cutting teeth |
| CN104148885A (en) * | 2014-06-16 | 2014-11-19 | 黄河科技学院 | Polycrystalline diamond pick-rod machining process |
| CN204899809U (en) * | 2015-06-11 | 2015-12-23 | 上海古堡实业有限公司 | Three metals connect drill rod from expanded joint |
-
2016
- 2016-04-28 CN CN201610272581.3A patent/CN105756114A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120043875A (en) * | 2010-10-27 | 2012-05-07 | 전주대학교 산학협력단 | Connection structure of cemented carbide blank material and shank material for micro cutting tool and its method |
| KR101176099B1 (en) * | 2010-10-27 | 2012-08-22 | 이성구 | A micro cutting tool |
| CN202165081U (en) * | 2011-07-05 | 2012-03-14 | 江苏创一精锻有限公司 | High-strength high-ductility novel integrated cutting pick |
| CN202324044U (en) * | 2011-12-15 | 2012-07-11 | 湖南科技大学 | Hydraulic breaking hammer drill rod structure |
| CN202810850U (en) * | 2012-09-04 | 2013-03-20 | 平顶山市中矿机械制造有限公司 | Friction-welding bimetal hard rock cutting teeth |
| CN104148885A (en) * | 2014-06-16 | 2014-11-19 | 黄河科技学院 | Polycrystalline diamond pick-rod machining process |
| CN204899809U (en) * | 2015-06-11 | 2015-12-23 | 上海古堡实业有限公司 | Three metals connect drill rod from expanded joint |
Non-Patent Citations (2)
| Title |
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| 张玉庭: "冶金、工矿、建筑等机械零件的选测及热处理", 《机械零件选材及热处理设计手册》 * |
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Application publication date: 20160713 |