CN202000918U - Coal drill pipe - Google Patents

Coal drill pipe Download PDF

Info

Publication number
CN202000918U
CN202000918U CN2011201346386U CN201120134638U CN202000918U CN 202000918 U CN202000918 U CN 202000918U CN 2011201346386 U CN2011201346386 U CN 2011201346386U CN 201120134638 U CN201120134638 U CN 201120134638U CN 202000918 U CN202000918 U CN 202000918U
Authority
CN
China
Prior art keywords
joint
drilling rod
drill pipe
coal
pole segments
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.)
Expired - Fee Related
Application number
CN2011201346386U
Other languages
Chinese (zh)
Inventor
张富强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING FUQIANG HUAWEI ENVIRONMENT PROTECTING ENGINEERING CO LTD
Original Assignee
CHONGQING FUQIANG HUAWEI ENVIRONMENT PROTECTING ENGINEERING CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING FUQIANG HUAWEI ENVIRONMENT PROTECTING ENGINEERING CO LTD filed Critical CHONGQING FUQIANG HUAWEI ENVIRONMENT PROTECTING ENGINEERING CO LTD
Priority to CN2011201346386U priority Critical patent/CN202000918U/en
Application granted granted Critical
Publication of CN202000918U publication Critical patent/CN202000918U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model discloses a coal drill pipe, which comprises a joint I used for being connected with a drill, a joint II used for being connected with a power device, and an intermediate rod section, wherein the joint I and the joint II are respectively arranged at the two ends of the intermediate rod section, and the joint I, the joint II and the intermediate rod section are integrated to form an integrated structure. In the coal drill pipe, the joint I, the joint II and the intermediate rod section are of the integrated structure, the strength is high, and the mechanical property is good; meanwhile, the integrated structure easily ensures the accuracy of mutual position between parts in processing, so the dimensional accuracy is high; and especially, the coaxiality of the joints I and II is good, so the mechanical property of the drill pipe can be further improved, and the service life of the drill pipe is long.

Description

The coal drilling rod
Technical field
The utility model relates to a kind of drilling rod.
Background technology
The coal drilling rod is one of the bigger instrument that consumes in the coal digging.Traditional drilling rod generally is made up of three parts: the joint I that is used for connecting with drill bit, be used for the joint II and the intermediate pole segments that connect with power set.Prior art center tap I and joint II are fixedly installed on the two ends of intermediate pole segments respectively by the mode of welding.
Drilling rod of the prior art has more shortcoming:, welding quality difficult control complicated as a, welding procedure; The ability that b, welding drilling rod bear moment of flexure and moment of torsion is strong inadequately; The difficult control of the axiality of c, welding drilling rod two joints, the drilling rod precision is lower; D; The drilling rod life-span is shorter.
Therefore need improve drilling rod of the prior art, promote the drilling rod total quality, prolong the drilling rod life-span.
The utility model content
In view of this, the purpose of this utility model provides a kind of coal drilling rod, its dimensional accuracy height, and whole stress-bearing capability is strong, long service life.
The utility model coal drilling rod, comprise the joint I that is used for connecting, be used for the joint II and the intermediate pole segments that connect with power set with drill bit, described joint I and joint II are separately positioned on the intermediate pole segments two ends, and described joint I, intermediate pole segments and joint II are monolithic construction, make one.
Further, described joint I is an outer cone screw-type joint;
Further, described joint II is a female cone screw-type joint;
Further, described joint I, intermediate pole segments and joint II are the solid forging moulding.
The beneficial effects of the utility model: the utility model coal drilling rod, joint I, intermediate pole segments and joint II are monolithic construction, the intensity height, stress performance is good; The monolithic construction work in-process guarantees the mutual alignment precision between each position easily simultaneously, thereby the axiality of dimensional accuracy height, particularly joint I and joint II is good, can further improve the drilling rod stress performance, and the drilling rod life-span is long.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model coal jackrod structure schematic diagram.
The specific embodiment
Fig. 1 is the utility model coal jackrod structure schematic diagram.
As shown in the figure, present embodiment coal drilling rod, comprise the joint I 1 that is used for connecting, be used for the joint II 2 and the intermediate pole segments 3 that connect with power set with drill bit, described joint I 1 and joint II 2 are separately positioned on intermediate pole segments 3 two ends, described joint I 1, intermediate pole segments 3 and joint II 2 are monolithic construction, make one.The utility model coal drilling rod, joint I, intermediate pole segments and joint II are monolithic construction, the intensity height, stress performance is good; The monolithic construction work in-process guarantees the mutual alignment precision between each position easily simultaneously, thereby the axiality of dimensional accuracy height, particularly joint I and joint II is good, can further improve the drilling rod stress performance, and the drilling rod life-span is long.
In the present embodiment, described joint I 1 is an outer cone screw-type joint, and with the drill bit threaded engagement, assembling speed is fast, the efficient height; Described joint II 2 is female cone screw-type joint, and is fast with the power set assembling speed, the efficient height.
In the present embodiment, described joint I 1, intermediate pole segments 3 and joint II 2 are the solid forging moulding, and the drilling rod total quality is consistent, and holistic resistant behavior is good.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (4)

1. coal drilling rod, comprise the joint I that is used for connecting, be used for the joint II and the intermediate pole segments that connect with power set with drill bit, described joint I and joint II are separately positioned on the intermediate pole segments two ends, it is characterized in that: described joint I, intermediate pole segments and joint II are monolithic construction, make one.
2. coal drilling rod according to claim 1 is characterized in that: described joint I is an outer cone screw-type joint.
3. coal drilling rod according to claim 1 is characterized in that: described joint II is a female cone screw-type joint.
4. according to the described coal drilling rod of arbitrary claim in the claim 1 to 3, it is characterized in that: described joint I, intermediate pole segments and joint II are the solid forging moulding.
CN2011201346386U 2011-04-29 2011-04-29 Coal drill pipe Expired - Fee Related CN202000918U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201346386U CN202000918U (en) 2011-04-29 2011-04-29 Coal drill pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201346386U CN202000918U (en) 2011-04-29 2011-04-29 Coal drill pipe

Publications (1)

Publication Number Publication Date
CN202000918U true CN202000918U (en) 2011-10-05

Family

ID=44703663

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201346386U Expired - Fee Related CN202000918U (en) 2011-04-29 2011-04-29 Coal drill pipe

Country Status (1)

Country Link
CN (1) CN202000918U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926673A (en) * 2012-12-02 2013-02-13 中国石油化工股份有限公司 Destabilization-prevention oil pipe joint
CN106563918A (en) * 2015-10-12 2017-04-19 重庆美通钻杆制造有限公司 Machining technology of integrated triangular drill pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926673A (en) * 2012-12-02 2013-02-13 中国石油化工股份有限公司 Destabilization-prevention oil pipe joint
CN106563918A (en) * 2015-10-12 2017-04-19 重庆美通钻杆制造有限公司 Machining technology of integrated triangular drill pipe

Similar Documents

Publication Publication Date Title
CN202000918U (en) Coal drill pipe
CN201620773U (en) Novel welding type drill collar
CN204060507U (en) The multistage hydraulic pressurizer of single straight-cylinder
CN202745720U (en) Geological drill pipe
CN201843975U (en) Hollow flexible gear for harmonic speed reducer
CN102926664A (en) Sleeve for drill bit connection
CN202194582U (en) Sleeve for being connected with drill
CN202467693U (en) Protective short joint connected repairing drill pipe
CN202851591U (en) Middle flange locking structure for transmission shaft
CN102865045A (en) Rock drilling quick replacing drilling rod with taper thread
CN203141608U (en) Woodworking twist drill
CN206817013U (en) A kind of casing-pipe connection structure
CN204238867U (en) A kind of drilling rod based on adapter
CN105484680B (en) A kind of combined drill rod applied to twist bit
CN203579218U (en) Tool for processing articulation holes
CN202913981U (en) Tapered and threaded rock drilling fast-changing drill rod
CN202845847U (en) Electric hand drill with positioning function
CN203476236U (en) Oil drill pipe joint variable in pitch and thread
CN203476238U (en) Drill rod joint provided with male joint body and female joint body with threads of different conical degrees
CN203610737U (en) Multistage drill bit
CN203515359U (en) Torque-transmission type easy-detachment quick connector
CN203441391U (en) Drilling bucket square head for multifunctional rotary drilling rig
CN203230348U (en) Double-shoulder sealing surface structure
CN202180200U (en) Stopper
CN202332306U (en) Manhole shell section for quickly opening manhole by using swing handle

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111005

Termination date: 20120429