CN204511437U - Durable type crushing hammar drill rod - Google Patents
Durable type crushing hammar drill rod Download PDFInfo
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- CN204511437U CN204511437U CN201520072003.6U CN201520072003U CN204511437U CN 204511437 U CN204511437 U CN 204511437U CN 201520072003 U CN201520072003 U CN 201520072003U CN 204511437 U CN204511437 U CN 204511437U
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Abstract
Durable type crushing hammar drill rod disclosed in the utility model, comprise the body of rod, described lever front end is termination, and rear end is sharp portion, and described tip diameter is less than body of rod diameter, between termination and the body of rod, overbank forms inclination interface, the body of rod closes on front end tip position and be provided with groove, groove is anterior to join with the body of rod is surperficial vertical, makes interface and bottom portion of groove be 90 degree of angles, fluted tail extends upwardly to body of rod surface from bottom angled, forms inclination interface between fluted tail and the body of rod.Extend gradually outside the utility model surface from bottom portion of groove to the body of rod is oblique, realize joining with the excessive formula on body of rod surface, can effectively cushion when fragmentation be subject to knock stress, the stress that knocks suffered by weak spot groove weakens greatly, relative to right angle groove, can effectively avoid groove to rupture, improve operating efficiency, enhance the durability of drill steel, effectively extend drill steel application life.
Description
Technical field
The utility model relates to a kind of breaking tool, is specifically related to a kind of durable type crushing hammar drill rod.
Background technology
In mining, the crushing hammar drill rod that people use quality harder cuts into a mountain mining, but drill steel is from working stress loading spectrum viewpoint, drill steel is to bear longitudinal stress, its stress distribution on cross section is equal, namely surfaces externally and internally stands equal stress, the high level stress frequency of drill steel front end is higher than the middle part of drill steel, but its peak stress is substantially equal, result shows, along on drill steel length direction, the degree of the fatigue damage occurred is inconsistent, drill steel front end is than in the middle part of the drill steel that amount of deflection is maximum in creeping into, more easily there is fatigue damage and cause disrumpent feelings, actual observation finds, many than in the middle part of drill steel of the fatigue crack of drill steel front end, and its crackle is not only long but also dark.According to the preliminary statistics, the drill steel that the annual whole nation consumes has more than 10 ten thousand at least, waste a large amount of resources and construction cost, thus, in drill steel uses, how to alleviate and knock stress, avoid fracture, extend drill steel application life, strengthen the durability of drill steel, be this area technical problem urgently to be resolved hurrily always.
Utility model content
The purpose of this utility model be for drill steel in prior art easily broken, the technical problem such as be not durable, a kind of durable type crushing hammar drill rod is provided, the point that this drill steel is knocking most easy fracture in fragmentation does rational modification, effectively can cushion after improvement and knock stress, avoid fracture, extend the application life of drill steel.
Technical scheme: a kind of durable type crushing hammar drill rod, comprise the body of rod, described lever front end is termination, and rear end is sharp portion, and described tip diameter is less than body of rod diameter, between termination and the body of rod, overbank forms inclination interface, the body of rod closes on front end tip position and be provided with groove, groove is anterior to join with the body of rod is surperficial vertical, makes interface and bottom portion of groove be 90 degree of angles, fluted tail extends upwardly to body of rod surface from bottom angled, forms inclination interface between fluted tail and the body of rod.
Based on technique scheme, described depth of groove is 0.5 ~ 1cm, and length is 3 ~ 5cm.
Based on technique scheme, the inclination interface of described fluted tail and the body of rod and bottom portion of groove angle are 150 degree.
Based on technique scheme, in body of rod termination, outermost end is designed with the face of knocking, described in knock face prominent end outer rim, and diameter is less than termination external profile diameter.
Based on technique scheme, the inclination interface angle of described termination and the body of rod is 45 degree.
Based on technique scheme, described sharp portion is cut in being tilted to from front to back from body of rod surface, and formed in sharp portion termination and puncture a little, on sharp portion, the relatively lopsided angle of the same face two is 30 degree.
Based on technique scheme, the termination of sharp portion is cross or yi word pattern.
The beneficial effects of the utility model: on ore deposit in exploitation, piston slap drill steel end, the sharp portion of drill steel rear end thrusts ore, and then plays broken object.And end is born as shock in drill steel front end, bear and very large knock stress, the handing-over position of the fluted tail and the body of rod that are positioned at drill steel front end be drill steel bear knock stress time most fragile point, traditional right angle groove, transition zone is not had between the body of rod and groove, and directly sink, shattering process further groove is almost born completely through face of sinking and is knocked stress, and groove is easy to fragmentation, fracture.The fluted tail of drill steel front end is designed to sink gradually formula groove by the utility model, extend gradually outside surperficial oblique from bottom portion of groove to the body of rod, realize joining with the excessive formula on body of rod surface, can effectively cushion when fragmentation be subject to knock stress, the stress that knocks suffered by weak spot groove weakens, greatly relative to right angle groove, can groove be effectively avoided to rupture, improve operating efficiency, enhance the durability of drill steel, effectively extend drill steel application life.
Accompanying drawing explanation
Fig. 1 is the utility model durable type crushing hammar drill rod structural representation;
Fig. 2 is one of sharp portion plan structure schematic diagram in Fig. 1;
Fig. 3 is sharp portion plan structure schematic diagram two in Fig. 1;
Fig. 4 is drill steel termination plan structure schematic diagram in Fig. 1.
Number in the figure, 1 is sharp portion, and 2 is the body of rod, and 3 is groove, 4 is termination and body of rod interface, 5 is drill steel termination, and 51 is termination outer rim, and 52 for knocking face in termination, 6 is the interface of fluted tail and the body of rod, 7 is the anterior interface with the body of rod of groove, and 8 is termination and body of rod interface angle of slope, and 9 is sharp portion angle.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described further.
Embodiment 1: a kind of durable type crushing hammar drill rod, see Fig. 1, comprise the body of rod 2, the described body of rod 2 front end is termination 5, rear end is sharp portion 1, described sharp portion 1 is cut in being tilted to from front to back from the body of rod 2 surface, and formed in sharp portion termination and puncture a little, on sharp portion, the relatively lopsided angle of the same face two is 30 degree.This sharp portion is stressed all concentrates on termination, and termination is comparatively thin, and crushing force is strong, and operating efficiency is high, and sharp portion circumference tilt degree is consistent, uniform force, not easy fracture.Described termination 5 diameter is less than the body of rod 2 diameter, between termination 5 and the body of rod 2, overbank forms inclination interface 4, and inclination interface 4 angle is preferably 45 degree, and it is more even that what this angle can make the body of rod 2 be subject to transmitting from termination 5 knock stress, axial stress is more balanced, not easily cracks.The body of rod 2 closes on position, termination, front end 5 and be provided with groove 3, groove 3 is anterior to join with the body of rod is surperficial vertical, makes interface 7 and bottom portion of groove be 90 degree of angles.And the junction of fluted tail and the body of rod is the most easily broken knick point when mining fragmentation is knocked, if be designed to right angle groove herein, groove and body of rod junction are exactly a line, when knocking, stress all acts on this handing-over line, and junction is just easy to, because load is too large, cause fracture.Therefore the present embodiment upwards extends to the body of rod 2 surface gradually from groove 3 afterbody bottom angled, forms inclination interface 6 between groove 3 afterbody and the body of rod 2, bottom inclination interface 6 and groove 3, angle is 150 degree.The inclination interface formed will knock stress and disperse, and avoid stress concentration at a bit, on a line, counter stress play effectively weaken, cushioning effect, avoid rupturing.Knock stress to be eased, the fatigue damage that also can effectively prevent the body of rod too early, even to crack.Interface 6 with groove 3 bottom angle be that the gradient of 150 degree tilts, can maximized alleviation, weaken stress, maximized protection drill steel.The present embodiment further groove degree of depth is 0.5 ~ 1cm, and length is 3 ~ 5cm.
Embodiment 2: another kind of durable type crushing hammar drill rod, this embodiment content is substantially identical with embodiment 1 content, same section content no longer repeats, as different from Example 1: see Fig. 4, the face of knocking 52 is also designed with in body of rod termination 5 outermost end in the present embodiment, describedly knock face 52 prominent end outer rim 51, and diameter is less than termination outer rim 51 diameter.Piston action is on the face of knocking 52, and termination outer rim does not have and piston contact,
Relative to directly clashing into termination, can effectively alleviate termination stress, preventing termination from directly bearing shock and cracking, effectively extending Estimation of Fatigue Life of Drill Rod.
Embodiment 3: another kind of durable type crushing hammar drill rod, this embodiment content is substantially identical with embodiment 2 content, same section content no longer repeats, and as different from Example 2: see Fig. 2, Fig. 3, in the present embodiment, sharp portion termination can be designed to cross or yi word pattern.Cross termination mechanical strength is high, and holding capacity is strong, not easy fracture, and breaking capacity is strong, and operating efficiency is high.And cross termination, the plane of disruption is large, and crushing force is strong, also can bear high strength stress, and practicality is very strong, is applicable to more large-area fragmentation.
Finally it should be noted that: the foregoing is only better possible embodiments of the present utility model; and unrestricted protection domain of the present utility model; therefore all utilization the utility model manuals and the change of the equivalent structure done by accompanying drawing content, be all included in protection domain of the present utility model.
Claims (7)
1. a durable type crushing hammar drill rod, comprise the body of rod, described lever front end is termination, and rear end is sharp portion, it is characterized in that: described tip diameter is less than body of rod diameter, between termination and the body of rod, overbank forms inclination interface, the body of rod closes on front end tip position and be provided with groove, groove is anterior to join with the body of rod is surperficial vertical, makes interface and bottom portion of groove be 90 degree of angles, fluted tail extends upwardly to body of rod surface from bottom angled, forms inclination interface between fluted tail and the body of rod.
2. durable type crushing hammar drill rod according to claim 1, is characterized in that: described depth of groove is 0.5 ~ 1cm, and length is 3 ~ 5cm.
3. durable type crushing hammar drill rod according to claim 1, is characterized in that: the inclination interface of described fluted tail and the body of rod and the angle of bottom portion of groove are 150 degree.
4. durable type crushing hammar drill rod according to claim 1, is characterized in that: in body of rod termination, outermost end is designed with the face of knocking, described in knock face prominent end outer rim, and diameter is less than termination external profile diameter.
5. durable type crushing hammar drill rod according to claim 1, is characterized in that: described termination and body of rod inclination interface angle are 45 degree.
6. durable type crushing hammar drill rod according to claim 1, is characterized in that: described sharp portion is cut in being tilted to from front to back from body of rod surface, and formed in sharp portion termination and puncture a little, on sharp portion, the relatively lopsided angle of the same face two is 30 degree.
7. the durable type crushing hammar drill rod according to any one of claim 1-6, is characterized in that: the termination of described sharp portion is cross or yi word pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072003.6U CN204511437U (en) | 2015-02-02 | 2015-02-02 | Durable type crushing hammar drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072003.6U CN204511437U (en) | 2015-02-02 | 2015-02-02 | Durable type crushing hammar drill rod |
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| Publication Number | Publication Date |
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| CN204511437U true CN204511437U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520072003.6U Active CN204511437U (en) | 2015-02-02 | 2015-02-02 | Durable type crushing hammar drill rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289793A (en) * | 2015-11-17 | 2016-02-03 | 吉林大学 | Bionic breaking hammer drill rod |
| CN107890897A (en) * | 2017-11-02 | 2018-04-10 | 成立 | A kind of broken and boring tool of anti-rear end split |
-
2015
- 2015-02-02 CN CN201520072003.6U patent/CN204511437U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289793A (en) * | 2015-11-17 | 2016-02-03 | 吉林大学 | Bionic breaking hammer drill rod |
| CN105289793B (en) * | 2015-11-17 | 2017-09-26 | 吉林大学 | A kind of bionical crushing hammar drill rod |
| CN107890897A (en) * | 2017-11-02 | 2018-04-10 | 成立 | A kind of broken and boring tool of anti-rear end split |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160112 Address after: Zuo Yanjin County of Xinxiang City, Henan province 453200 urban and rural East Patentee after: Tian Li industrial furnace Co., Ltd of Henan Province Address before: Xinxiang City, Henan province 453200 urban and rural areas of Yanjin County extension class line and 307 line intersection Patentee before: Tian Li heavy industry Science and Technology Ltd. of Henan Province |
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| CP03 | Change of name, title or address |
Address after: 453200, Henan County, Xinxiang County, Yanjin Province industrial agglomeration area north 307 lines Patentee after: Henan Tianli thermal equipment Limited by Share Ltd Address before: Zuo Yanjin County of Xinxiang City, Henan province 453200 urban and rural East Patentee before: Tian Li industrial furnace Co., Ltd of Henan Province |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200106 Address after: No. m1-2, wuqiaoyuan, Wanzhou economic and Technological Development Zone, Wanzhou District, Chongqing Patentee after: Chongqing Xintianli Intelligent Heavy Industry Co., Ltd. Address before: 453200 Xinxiang District, Henan City, Yanjin Province industrial agglomeration area north 307 line Patentee before: Henan Tianli thermal equipment Limited by Share Ltd |
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| TR01 | Transfer of patent right |