CN205025367U - Body cutting drilling rod - Google Patents
Body cutting drilling rod Download PDFInfo
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- CN205025367U CN205025367U CN201520608334.7U CN201520608334U CN205025367U CN 205025367 U CN205025367 U CN 205025367U CN 201520608334 U CN201520608334 U CN 201520608334U CN 205025367 U CN205025367 U CN 205025367U
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Abstract
The utility model relates to a be applied to drilling machinery apparatus, the especially body cutting drilling rod in colliery. The drilling rod appearance be cylindric, including male joint, the body of rod, female joint, male joint, the body of rod and female joint fixed connection in order become integrative, fixed connection becomes to be equipped with the through -hole that two double -phase interconnection are led to in integrative male joint, the body of rod and the female joint, the male joint is connected with female joint transition fit, and the top is tight mutually with the male joint circular bead for female connection end section, and the circular bead compresses tightly mutually with public connection end section simultaneously in the female joint, offer three spiral groove of evenly distributed on the male joint connection ends of external diameter unanimity, the outer periphery of the body of rod and on the outer periphery of female joint. Body cutting drilling rod be on the body of rod of flat drill pole outside geology, adopt milling process technology to form the helicla flute, unprocessed drilling rod body of rod part forms spiral thrust, the joint of drilling rod adopts zigzag screw thread connection to it creeps into the function of row sediment to reach the high efficiency.
Description
Technical field
The utility model relates to a kind of drilling machinery apparatus being applied to colliery, especially body cutting drilling rod.
Background technology
To in the tunneling process of colliery, require " have pick to visit, first visit and dig afterwards ".Common light face drilling rod is when meeting the geological conditions such as weak seam, carbon-free post, boring deep easy bit freezing under the effect of geostatic stress, gas pressure and drilling rod perturbed force, very easily lose drilling rod phenomenon, cause detection operations to carry out, the driving of remote-effects work plane.Although welded type auger stem and rib drill stem solve bit freezing problem, shortcoming wears no resistance, larger to the clamper disturbance of rig, clamper slips and glue bucket are damaged frequent, drilling construction efficiency is low, and application life is short, and welding auger stem has blade to take off phenomenon.
Above-mentioned drilling rod lost efficacy generally show as the fracture of drilling rod body, screw thread fracture, female adapter is swollen button, drilling rod body fracture failure only accounts for less than 20% of above Failure Factors.Drilling rod is in drilling process, and the elongate drill rod be threaded connection, enters boring and creep into, have annular gap between drilling rod and hole wall under the guiding of drill bit, and tool joint stressing conditions is very complicated.The connection of thread of drilling rod is compared with drill rod body, and rigidity is less, complex-shaped, and being the place that stress is concentrated, is also the weak part of drilling rod.
The joint screw thread of drilling rod generally has triangle tapered tread, rectangular cylinder screw thread.Tapered tread jointing quality is stable not, and the path of screw thread weakens the cross-sectional area of drill rod body, and the intensity reducing joint can reach 85% ~ 90% of the actual tensile strength of drill rod body mother metal; Rectangular thread generally uses as motion thread, is 90
0square, transmission efficiency is high, but rectangular thread jointing intensity is poor, easy to wear, and when the jointed rod body of rod time is longer, rectangular thread diastema becomes large, and the straightness accuracy after drilling rod connects is difficult to ensure.
Utility model content
The utility model is exactly to solve prior art above shortcomings, body cutting drilling rod is provided, described body cutting drilling rod is on the body of rod of the outer flush drill stem of geology, Milling Process technique is adopted to form helicla flute, unprocessed drill rod body part forms spiral thrust, the joint of drilling rod adopts saw-tooth thread connected mode, thus reaches the function of efficiently creeping into deslagging.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Body cutting drilling rod, described drilling rod profile is cylindric, comprise male joint, the body of rod, female joint, male joint, the body of rod and female joint are fixedly connected with integral in turn, are fixedly connected with the through hole being provided with in integral male joint, the body of rod and female joint and being interconnected between two; The male joint connecting end portion external peripheral surface of male joint being disposed with outer silk Zhi Kou, outer saw-tooth thread section, male joint shoulder and being connected with body of rod one end, the straight mouth of outer silk is arranged with " O " RunddichtringO; The female joint connecting end portion endoporus periphery of female joint being sequentially with shoulder in female joint, interior saw-tooth thread section and being connected with the body of rod other end; Male joint is connected with female joint interference fits, and female joint end and male joint shoulder hold out against mutually, and in female joint, shoulder and male joint end compress mutually simultaneously; Equally distributed three helical grooves are offered on the outer circumference surface of the male joint connecting end portion that external diameter is consistent, on the outer circumference surface of the body of rod and on the outer circumference surface of female joint.
Further, described inside and outside saw-tooth thread section adopts the Small Taper of 1: 58 respectively, and the connection man-hour be threaded is concentrated and shortened to the less tapering stress occurred that not only reduces to be threaded;
Further, in described inside and outside saw-tooth thread section, every dental length is respectively 1.11cm, and the shape of tooth is right angle scalariform, and wherein trapezoidal hypotenuse and vertical edge angle are 15
0~ 20
0between, trapezoidal thread single load bearing is better, and technique is good, and intensity is high;
Further, on the cross section of described helical groove dual-side and base orthogonal, dual-side height is identical, this helical groove adopt dextrorotation, coarse pitch, compound helical pitch.
Compared with prior art, the beneficial effects of the utility model are:
1, this build cutting drilling rod adopts saw-tooth thread, screw thread adopts Double Tops structure, namely when drilling rod male and female button is tightened, box end and pin shoulder place hold out against, the interior shoulder place of box and the end of pin thread hold out against simultaneously, compared with single crown drill bar, and good sealing effect, larger moment of torsion can be born, the longer service life of drilling rod.
2, the total length of this build cutting drilling rod generally has 200m-300m, this drilling rod tapering is very little, interference fits between this build cutting drilling rod of head and the tail connection between two, to prevent in long tunneling process that in tool joint box, saw-tooth thread section is thinning is bored into horn mouth by fillet of tool joint pins, and shoulder under Double Tops structure and end is unspent plays a role, ensure that drilling rod continues to use.
3, in the straight mouth place of the outer silk of this build cutting fillet of tool joint pins, be provided with " O " RunddichtringO, play the effect of water-stop.
4, this build cutting drilling rod is overall through nitrogen treatment, and abrasion resistance improves more than 3 times.
5, this build cutting drilling rod is that body milling forms spiral relative to the main distinguishing feature of welded type rib drill stem, efficiently solves the probing problem in tunneling process.
6, this build cutting drilling rod adopts the structure design of the coarse pitch of 3 spirals, compound helical pitch, and what optimize drilling rod creeps into deslagging function.
7, this build cutting drilling rod adopts and thickeies geology alloy pipe, compared with welded type auger stem, anti-wear performance significantly improves, less to the clamper disturbance of rig, avoid the frequent breakage of clamper slips and glue bucket, having higher drilling construction efficiency and application life, is the renewal product of welded type auger stem, rib drill stem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure enlarged diagram at the A place of the utility model male joint.
Fig. 3 is the structure enlarged diagram at the B place of the utility model female joint.
Fig. 4 is the sectional structure schematic diagram at the C-C place of the utility model body of rod.
In figure: 1-male joint; The 2-body of rod; 3-female joint; The outer straight mouth of silk of 4-; 5-female joint end; 6-male joint shoulder; Shoulder in 7-female joint; 8-male joint end; The outer saw-tooth thread section of A-; Saw-tooth thread section in B-; 9-helical groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, body cutting drilling rod, described drilling rod profile is cylindric, comprise male joint 1, the body of rod 2, female joint 3, male joint 1, the body of rod 2 and female joint 3 are fixedly connected with integral in turn, are fixedly connected with in integral male joint 1, the body of rod 2 and female joint 3 and are provided with the through hole be interconnected between two; The male joint connecting end portion external peripheral surface of male joint 1 being disposed with outer silk Zhi Kou, outer saw-tooth thread section A, male joint shoulder 6 and being connected with the body of rod 2 one end, the straight mouth 4 of outer silk is arranged with " O " RunddichtringO; The female joint connecting end portion endoporus periphery of female joint 3 being sequentially with shoulder 7 in female joint, interior saw-tooth thread section B and being connected with the body of rod 2 other end; Male joint 1 is connected with female joint 3 interference fits, and female joint end 5 and male joint shoulder 6 hold out against mutually, and in female joint, shoulder 7 compresses mutually with male joint end 8 simultaneously; Equally distributed three helical grooves are offered on the outer circumference surface of the male joint connecting end portion that external diameter is consistent, on the outer circumference surface of the body of rod and on the outer circumference surface of female joint.
As shown in Figure 2 and Figure 3, on the basis of technical scheme described in the above embodiments, described inside and outside saw-tooth thread section adopts the Small Taper of 1: 58 respectively, and the connection man-hour be threaded is concentrated and shortened to the less tapering stress occurred that not only reduces to be threaded; In described inside and outside saw-tooth thread section, every dental length is respectively 1.11cm, and the shape of tooth is right angle scalariform, wherein trapezoidal hypotenuse and vertical edge angle 15
0, trapezoidal thread single load bearing is better, and technique is good, and intensity is high;
As shown in Figure 4, on the cross section of described helical groove 9 dual-side and base orthogonal, dual-side height is identical, and this helical groove 9 adopts dextrorotation, coarse pitch, compound helical pitch.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a body cutting drilling rod, it is characterized in that: described drilling rod profile is cylindric, comprise male joint (1), the body of rod (2), female joint (3), male joint (1), the body of rod (2) and female joint (3) are fixedly connected with integral in turn, are fixedly connected with in integral male joint (1), the body of rod (2) and female joint (3) and are provided with the through hole be interconnected between two; The male joint connecting end portion external peripheral surface of male joint (1) being disposed with the straight mouth of outer silk (4), outer saw-tooth thread section (A), male joint shoulder (6) and being connected with the body of rod (2) one end, the straight mouth of outer silk (4) is arranged with " O " RunddichtringO; The female joint connecting end portion endoporus periphery of female joint (3) being sequentially with shoulder in female joint (7), interior saw-tooth thread section (B) and being connected with the body of rod (2) other end; Male joint (1) is connected with female joint (3) interference fits, and female joint end (5) and male joint shoulder (6) hold out against mutually, and in female joint, shoulder (7) compresses mutually with male joint end (8) simultaneously; Equally distributed three helical grooves are offered on the outer circumference surface of the male joint connecting end portion that external diameter is consistent, on the outer circumference surface of the body of rod (2) and on the outer circumference surface of female joint (3).
2. body cutting drilling rod according to claim 1, is characterized in that: described inside and outside saw-tooth thread section (A, B) adopts the Small Taper of 1: 58 respectively.
3. body cutting drilling rod according to claim 1, is characterized in that: the upper every dental length of described inside and outside saw-tooth thread section (A, B) is respectively 1.11cm, and the shape of tooth is right angle scalariform, and wherein trapezoidal hypotenuse and vertical edge angle are 15
0~ 20
0between.
4. body cutting drilling rod according to claim 1, is characterized in that: on the cross section of described helical groove (9) dual-side and base orthogonal, dual-side height is identical, this helical groove (9) adopt dextrorotation, coarse pitch, compound helical pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608334.7U CN205025367U (en) | 2015-08-13 | 2015-08-13 | Body cutting drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608334.7U CN205025367U (en) | 2015-08-13 | 2015-08-13 | Body cutting drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025367U true CN205025367U (en) | 2016-02-10 |
Family
ID=55257910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520608334.7U Active CN205025367U (en) | 2015-08-13 | 2015-08-13 | Body cutting drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374641A (en) * | 2018-03-29 | 2018-08-07 | 钱煜坤 | For the anti-sticking short circuit drilling rod of guiding of medium-length hole drilling machine and for the drilling rod group of medium-length hole drilling machine |
-
2015
- 2015-08-13 CN CN201520608334.7U patent/CN205025367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374641A (en) * | 2018-03-29 | 2018-08-07 | 钱煜坤 | For the anti-sticking short circuit drilling rod of guiding of medium-length hole drilling machine and for the drilling rod group of medium-length hole drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 466200 Zheng Guozhen City, Zhoukou City, Henan Province Patentee after: Henan Ao Yu Mining Machinery Co., Ltd. Address before: 466200 Zheng Guozhen City, Zhoukou City, Henan Province Patentee before: XIANGCHENG SHUANGYU MINING MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |