CN203822309U - Drill rod and hydraulic hammer adopting same - Google Patents

Drill rod and hydraulic hammer adopting same Download PDF

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Publication number
CN203822309U
CN203822309U CN201420255393.6U CN201420255393U CN203822309U CN 203822309 U CN203822309 U CN 203822309U CN 201420255393 U CN201420255393 U CN 201420255393U CN 203822309 U CN203822309 U CN 203822309U
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CN
China
Prior art keywords
drill steel
composite sheet
steel body
hard composite
drill rod
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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.)
Expired - Fee Related
Application number
CN201420255393.6U
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Chinese (zh)
Inventor
王瑞利
郭会娟
李杏
周泽义
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Huanghe Science and Technology College
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Huanghe Science and Technology College
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Filing date
Publication date
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Priority to CN201420255393.6U priority Critical patent/CN203822309U/en
Application granted granted Critical
Publication of CN203822309U publication Critical patent/CN203822309U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a drill rod and a hydraulic hammer adopting the same. The drill rod includes a drill rod body and a hard clad sheet arranged at the front end of the drill rod body, wherein the hard clad sheet includes a base body connected with the drill rod body and a wear-resistant layer arranged on the base body, and the side of the hard clad sheet with the wear-resistant layer protrudes out of the drill rod body to form an impacting head at the front end of the drill rod for crushing objects to be crushed; the hydraulic hammer is the hydraulic hammer adopting the drill rod. As the hard clad sheet has high strength and hardness, compared with the prior art, the drill rod has the advantages that the impacting head formed by the hard clad sheet is used as the key force-bearing component, so that the wear resistance of the drill rod is effectively improved, and influence on the working efficiency due to failure of the drill rod caused by abrasion is avoided.

Description

A kind of drill steel and use the hydraulic breaking hammer of this drill steel
Technical field
The utility model relates to a kind of drill steel and uses the hydraulic breaking hammer of this drill steel.
Background technology
Hydraulic breaking hammer is a kind of important construction tool, can be divided into hand-held and machine-carried type according to mode of operation, when work, rely on hydrostatic pressure as the reciprocating motion of the pistons in power drive hammer body, when piston stroke, high-speed impact is arranged on the drill steel of hammer body front end, by solids such as drill steel breaking ores, concrete, be widely used in the fields such as mining, metallurgy, railway, municipal gardens, building and boats and ships.The drill steel of hydraulic breaking hammer comprises the connecting portion that is arranged on rear end and the impact portion that is arranged on front end, and connecting portion is for being connected with hammer body, and impact portion has impact head, for impacting the thing that is broken.In prior art, drill steel is all to adopt alloy to make, low strength, wear-resisting, the shock-resistant ability of impact portion is poor, and drill steel need to bear very large impact in the course of work, therefore in operation process, easily there is the Problem of Failure such as fracture, bending, application life is short, need to often change, Integrated using cost is high, and inefficiency also can have influence on the performance and used life of hydraulic breaking hammer.Particularly, in the situation that high frequency is worked continuously, drill steel more easily goes wrong, and is not only easy to cause corollary equipment to damage, and also can cause very large impact to construction, has a strong impact on operating efficiency and programming.
Utility model content
The purpose of this utility model is to provide a kind of drill steel, solves the easy wear out failure of existing drill steel and ineffective problem, and meanwhile, the utility model also provides a kind of hydraulic breaking hammer that uses this drill steel.
The technical scheme that in the utility model, a kind of drill steel adopts is: a kind of drill steel, comprise drill steel body and the hard composite sheet that is arranged on drill steel body front end, described hard composite sheet comprises the matrix that is connected with drill steel body and is arranged on the wearing course on described matrix, and the side that hard composite sheet is provided with described wearing course is protruded the setting of described drill steel body and is formed for impacting the impact head of the thing that is broken at drill steel front end.
Described hard composite sheet is diamond compact, and described matrix is hard alloy substrate, and described wearing course is to be made up of the diamond layer being arranged on hard alloy substrate.
Described hard composite sheet is to be fixed on described drill steel body by the mode of welding or interference fit.
The front end of described drill steel body is pre-small post-large taper type structure, and described hard composite sheet is arranged on that the small end end face middle part of taper type structure and head are parabolic shape and the described impact head that forms tooth tip shape.
On the end face of described drill steel body front end, be provided with wearing layer in the surrounding of described hard composite sheet, described wearing layer is the cladding wearing layer that the tungsten-carbide powder on drill steel body forms by cladding.
The technical scheme that in the utility model, hydraulic breaking hammer adopts is: hydraulic breaking hammer, comprise hammer body and be connected to the drill steel on hammer body, described drill steel comprises drill steel body and is arranged on the hard composite sheet of drill steel body front end, described hard composite sheet comprises the matrix that is connected with drill steel body and is arranged on the wearing course on described matrix, and the side that hard composite sheet is provided with described wearing course is protruded the setting of described drill steel body and is formed for impacting the impact head of the thing that is broken at drill steel front end.
Described hard composite sheet is diamond compact, and described matrix is hard alloy substrate, and described wearing course is to be made up of the diamond layer being arranged on hard alloy substrate.
Described hard composite sheet is to be fixed on described drill steel body by the mode of welding or interference fit.
The front end of described drill steel body is pre-small post-large taper type structure, and described hard composite sheet is arranged on that the small end end face middle part of taper type structure and head are parabolic shape and the described impact head that forms tooth tip shape.
On the end face of described drill steel body front end, be provided with wearing layer in the surrounding of described hard composite sheet, described wearing layer is the cladding wearing layer that the tungsten-carbide powder on drill steel body forms by cladding.
The utility model adopts technique scheme, drill steel comprises drill steel body and is arranged on the hard composite sheet of drill steel body front end, described hard composite sheet comprises the matrix being connected with drill steel body and is arranged on the wearing course on described matrix, the side that hard composite sheet is provided with described wearing course is protruded the setting of described drill steel body and is formed for impacting the impact head of the thing that is broken at drill steel front end, because hard composite sheet has high strength and high rigidity, therefore, compared with drill steel of the prior art, the impact head being formed by hard composite sheet can be served as main stressed member, effectively improve the abrasion resistance of drill steel, avoid drill steel because wear out failure affects operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of hydraulic breaking hammer in the utility model, is also the structural representation of an a kind of embodiment of drill steel in the utility model simultaneously;
Fig. 2 is the structural representation of diamond compact in Fig. 1.
The name that in figure, each Reference numeral is corresponding is called: 1-hammer body, 2-drill steel, 3-drill steel body, 4-diamond compact, 5-hard alloy substrate, 6-diamond layer, 7-small end end face, 8-cladding wearing layer.
Detailed description of the invention
In the utility model, hydraulic breaking hammer embodiment, as shown in Fig. 1 ~ Fig. 2, comprises hammer body 1 and is connected to the drill steel 2 on hammer body 1, and wherein hammer body 1 adopts the casting of the material such as potassium steel or high chrome to form, and has good abrasion resistance.
Drill steel 2 comprises drill steel body 3 and is arranged on the hard composite sheet of drill steel body 3 front ends.Drill steel body 3 front ends are pre-small post-large taper type structure, and the middle part of the small end end face 7 of taper type structure is provided with the composite sheet installing hole embedding for hard composite sheet interference fit.Described hard composite sheet is diamond compact 4, it is synthetic that diamond compact 4 mixes by countless small diamond particles and cementing agent the diamond layer 6 and hard alloy substrate 5 sintering under HTHP that form, diamond layer 6 forms from sharp wearing course, have high strength, high rigidity, high-wearing feature and good self-sharpening, hard alloy substrate 5 is realized with described composite sheet installing hole interference fit and being fixedly connected with of drill steel body 3.Diamond compact 4 is provided with from one end of sharp wearing course and is parabolic shape, this end protrude that described drill steel body 3 arranges and drill steel 2 front ends form tooth tip shapes for impacting the impact head of the thing that is broken, as main stressed member.
The taper surface of described drill steel body 3 front end taper type structures is provided with wearing layer; this wearing layer is the cladding wearing layer 8 that the tungsten-carbide powder on drill steel body 3 forms by cladding; cladding wearing layer 8 has higher hardness and intensity; for drill steel body 3 is played a good protection, effectively slow down the wearing and tearing of drill steel body 3 correspondence positions.
According to the specification of drill steel 2 and user demand, the diameter of the hard alloy substrate 5 of diamond compact 4 is preferably set to 4.0mm ~ 28.0mm, is highly 4.0mm ~ 40.0mm, and adamantine thickness is preferably set to 0.1 ~ 3.0mm.
When use, hydraulic breaking hammer relies on drill steel 2 to carry out fragmentation to material, and the diamond compact 4 of high strength, high rigidity can, at drill steel 2 heads as main stressed member, effectively improve the abrasion resistance of drill steel 2, slow down the inefficacy that drill steel 2 causes due to wearing and tearing, improve operating efficiency.And the cladding wearing layer 8 on drill steel 2 can play a good protection to the easily-worn position of drill steel 2, solve better the easily problem of wearing and tearing of drill steel 2 in prior art.In addition, the abrasive particle of the passivation in sharp wearing course that in use procedure, diamond layer 6 forms can self falling or fragmentation, produces new sharp abrasive particle, thereby guarantee crushing effect, extend the application life of drill steel 2 and hydraulic breaking hammer, improve operating efficiency, reduce Integrated using cost.
In the utility model, a kind of drill steel 2 embodiment is the drill steel 2 in above-mentioned hydraulic breaking hammer, and concrete structure repeats no more herein.
In the above-described embodiments, what hard composite sheet adopted is diamond compact 4, and the head of diamond compact 4 becomes parabolic shape.In other embodiment of the present utility model, hard composite sheet also can adopt other composite sheet, for example cubic boron nitride composite piece, and the head of hard composite sheet can be also other shapes, such as taper or spherical etc.In addition, in above-described embodiment, hard composite sheet is fixing by interference fit and drill steel body 3, and in other embodiments, hard composite sheet also can be welded direct on drill steel body 3.

Claims (10)

1. a drill steel, it is characterized in that: comprise drill steel body and the hard composite sheet that is arranged on drill steel body front end, described hard composite sheet comprises the matrix that is connected with drill steel body and is arranged on the wearing course on described matrix, and the side that hard composite sheet is provided with described wearing course is protruded the setting of described drill steel body and is formed for impacting the impact head of the thing that is broken at drill steel front end.
2. a kind of drill steel according to claim 1, is characterized in that: described hard composite sheet is diamond compact, and described matrix is hard alloy substrate, and described wearing course is to be made up of the diamond layer being arranged on hard alloy substrate.
3. a kind of drill steel according to claim 1 and 2, is characterized in that: described hard composite sheet is to be fixed on described drill steel body by the mode of welding or interference fit.
4. a kind of drill steel according to claim 1 and 2, it is characterized in that: the front end of described drill steel body is pre-small post-large taper type structure, described hard composite sheet is arranged on that the small end end face middle part of taper type structure and head are parabolic shape and the described impact head that forms tooth tip shape.
5. a kind of drill steel according to claim 1 and 2, it is characterized in that: on the end face of described drill steel body front end, be provided with wearing layer in the surrounding of described hard composite sheet, described wearing layer is the cladding wearing layer that the tungsten-carbide powder on drill steel body forms by cladding.
6. hydraulic breaking hammer, comprise hammer body and be connected to the drill steel on hammer body, it is characterized in that: described drill steel comprises drill steel body and is arranged on the hard composite sheet of drill steel body front end, described hard composite sheet comprises the matrix that is connected with drill steel body and is arranged on the wearing course on described matrix, and the side that hard composite sheet is provided with described wearing course is protruded the setting of described drill steel body and is formed for impacting the impact head of the thing that is broken at drill steel front end.
7. hydraulic breaking hammer according to claim 6, is characterized in that: described hard composite sheet is diamond compact, and described matrix is hard alloy substrate, and described wearing course is to be made up of the diamond layer being arranged on hard alloy substrate.
8. according to the hydraulic breaking hammer described in claim 6 or 7, it is characterized in that: described hard composite sheet is to be fixed on described drill steel body by the mode of welding or interference fit.
9. according to the hydraulic breaking hammer described in claim 6 or 7, it is characterized in that: the front end of described drill steel body is pre-small post-large taper type structure, described hard composite sheet is arranged on that the small end end face middle part of taper type structure and head are parabolic shape and the described impact head that forms tooth tip shape.
10. according to the hydraulic breaking hammer described in claim 6 or 7, it is characterized in that: on the end face of described drill steel body front end, be provided with wearing layer in the surrounding of described hard composite sheet, described wearing layer is the cladding wearing layer that the tungsten-carbide powder on drill steel body forms by cladding.
CN201420255393.6U 2014-05-19 2014-05-19 Drill rod and hydraulic hammer adopting same Expired - Fee Related CN203822309U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420255393.6U CN203822309U (en) 2014-05-19 2014-05-19 Drill rod and hydraulic hammer adopting same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420255393.6U CN203822309U (en) 2014-05-19 2014-05-19 Drill rod and hydraulic hammer adopting same

Publications (1)

Publication Number Publication Date
CN203822309U true CN203822309U (en) 2014-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420255393.6U Expired - Fee Related CN203822309U (en) 2014-05-19 2014-05-19 Drill rod and hydraulic hammer adopting same

Country Status (1)

Country Link
CN (1) CN203822309U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270722A (en) * 2020-02-28 2020-06-12 贵州捷盛钻具股份有限公司 Circulating heat dissipation drill rod and operation method thereof
CN112621131A (en) * 2020-12-17 2021-04-09 乐清大勇新工具有限公司 Impact tool and machining process thereof
CN112963529A (en) * 2021-02-04 2021-06-15 山东锐凯工程机械有限公司 Wear-resistant breaking hammer piston and machining equipment thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270722A (en) * 2020-02-28 2020-06-12 贵州捷盛钻具股份有限公司 Circulating heat dissipation drill rod and operation method thereof
CN112621131A (en) * 2020-12-17 2021-04-09 乐清大勇新工具有限公司 Impact tool and machining process thereof
CN112621131B (en) * 2020-12-17 2022-05-03 乐清大勇新工具有限公司 Impact tool and machining process thereof
CN112963529A (en) * 2021-02-04 2021-06-15 山东锐凯工程机械有限公司 Wear-resistant breaking hammer piston and machining equipment thereof
CN112963529B (en) * 2021-02-04 2023-03-10 山东锐凯工程机械有限公司 Wear-resistant breaking hammer piston and machining equipment thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140910

Termination date: 20150519

EXPY Termination of patent right or utility model