CN203188903U - Combined type driving key with detachable rotary drilling rig power head - Google Patents

Combined type driving key with detachable rotary drilling rig power head Download PDF

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Publication number
CN203188903U
CN203188903U CN 201320166930 CN201320166930U CN203188903U CN 203188903 U CN203188903 U CN 203188903U CN 201320166930 CN201320166930 CN 201320166930 CN 201320166930 U CN201320166930 U CN 201320166930U CN 203188903 U CN203188903 U CN 203188903U
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CN
China
Prior art keywords
key
power head
plus
bolt
drive sleeve
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.)
Withdrawn - After Issue
Application number
CN 201320166930
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Chinese (zh)
Inventor
李晓亮
罗菊
张继光
魏彩凤
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.)
Xuzhou XCMG Foundation Construction Machinery Co Ltd
Original Assignee
Xuzhou XCMG Foundation Construction Machinery 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 Xuzhou XCMG Foundation Construction Machinery Co Ltd filed Critical Xuzhou XCMG Foundation Construction Machinery Co Ltd
Priority to CN 201320166930 priority Critical patent/CN203188903U/en
Application granted granted Critical
Publication of CN203188903U publication Critical patent/CN203188903U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a combined type driving key with a detachable rotary drilling rig power head. The combined type driving key with the detachable rotary drilling rig power head comprises a bolt I (1), an anti-loose gasket I (2), a driving sleeve (3) and a guiding ring (6). The guiding ring (6) is assembled on the upper end face of the driving sleeve (3) through a bolt II (4) and a gasket (5). The driving sleeve (3) is fixed with the rotary drilling rig power head through the bolt I (1) and the anti-loose gasket I (2). The combined type driving key with the detachable rotary drilling rig power head further comprises torque delivery keys (9) and a pressure adding delivery key (10). Three key grooves are evenly machined in the inner wall of the driving sleeve (3). The torque delivery keys (9) are assembled in the key grooves respectively. The pressure adding delivery key (10) is assembled on the lower end face of the driving sleeve (3). A whole driving key with the same circular section is formed by the driving sleeve (3), the torque delivery keys (9) and the pressure adding delivery key (10). The combined type driving key with the detachable rotary drilling rig power head is provided with the independent torque delivery keys and the independent pressure adding delivery key which are detachable respectively, so that machining is easy, replacement is rapid, and maintenance cost is low.

Description

The dismountable combined drive key of rotary digging drill power head
Technical field
The utility model relates to a kind of driving key, specifically is the dismountable combined drive key of a kind of rotary digging drill power head.
Background technology
Rotary drilling rig is a kind of stake construction equipment for the pore-forming operation, and it mainly utilizes unit head to drive drilling rod, and is passed to drilling tool by drilling rod and creeps into.When rotary drilling rig used the friction type drilling rod, rotary digging drill power head relied on two sides that drive the key vertical direction to realize driving the revolution of drilling rod both forward and reverse directions and transmits plus-pressure.Therefore, two sides that drive the key vertical direction can be worn down to the inclined-plane after work a period of time, and it is very fast especially to drive the rotating flank wear of drilling rod forward, and serious wear, cause rotary digging drill power head driving key function to lose efficacy gradually, thereby influence the functional performance of rotary drilling rig; When rotary drilling rig used machine locking-type drilling rod, two sides that not only drive the key vertical direction can be worn down to the inclined-plane, and the lower end that drives key adds pressure surface and also can be worn down to the inclined-plane.So the wearing and tearing that drive key are the ubiquitous problems of rotary drilling rig equipment.
At present, the rotary digging drill power head of the designed production of each rotary drilling rig main frame manufacturer both at home and abroad driving key all is that three drivings of employing keys are realized driving and the pressurization to drilling rod on principle; Mainly contain welded type and removable two kinds in form of structure: after welded type drives key and wearing and tearing occur, can't change fast at building-site, can only return factory, process again, the rework cost height, the cycle is long; Though removable driving key can be realized on-the-spot the replacing,, when the machine of use locking-type drilling rod, still there are two problems: the first, if single key that drives bears plus-pressure, the bolt that drives key is loosening crooked easily, even fracture, the fault rate height; Second, add any one face appearance wearing and tearing in the pressure surface as long as drive two sides of key vertical direction with the lower end that drives key, just must pull down whole driving key changes, cause and change the frequency height, cost is big, and because the restriction of structure space and building site condition, it is very big to drive key dismounting difficulty.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of rotary digging drill power head dismountable combined drive key, needn't dismantle whole driving key, only need the dismounting wear-out part to change, be easy to processing, thereby effectively reduce maintenance cost.
To achieve these goals, the technical solution adopted in the utility model is: the dismountable combined drive key of a kind of rotary digging drill power head, comprise bolt I, lock washer I, drive sleeve, bolt II, packing ring and guide ring, guide ring is assemblied in the drive sleeve upper surface by bolt II, packing ring, and drive sleeve is fixed by bolt I, lock washer I and Spiral digging machine unit head; Also comprise the transmission torque keys and transmit the plus-pressure key, the drive sleeve inwall is processing three road keyways evenly, and the median plane of three road keyways 120 ° at interval in a circumferential direction is uniform, on the three road keyways transmission torque keys is housed all; Transmission plus-pressure key is assemblied in the lower surface of drive sleeve, transmitting the plus-pressure key is made up of an annulus and three pressurization key plates, three pressurization key plate 120 ° at intervals on circle ring inner wall are uniform, and the width of three pressurization key plates is than the little 15mm-20mm of width that transmits torque keys, the median plane that transmits three pressurization key plates on the plus-pressure key with align with three median planes that transmit torque keys respectively, drive sleeve, transmit torque keys and the integral body driving key that transmits an identical circular section of plus-pressure key formation.
It is fastening by screw I and sheath to transmit torque keys.
Transmit the plus-pressure key and be installed in the drive sleeve lower surface by screw II, lock washer II.
Compare with existing apparatus: be provided with in the utility model and transmit torque keys and transmit the plus-pressure key, needn't the whole driving key of removal, in the course of work as wear phenomenon occurs, the key of damage all independently detachable, change and change convenient, maintenance cost is low; Drive sleeve, transmission torque keys form a whole anchor ring with transmission plus-pressure key, can transmit and disperse drilling rod to add and present a theatrical performance as the last item on a programme to driving the reaction force of key, avoid single driving key to bear plus-pressure and caused the bolt looseness bending that drives key, even the fault of fracture, fault rate reduced.
Description of drawings
Fig. 1 is overall schematic of the present utility model;
Fig. 2 is the utility model vertical view;
Fig. 3 be among Fig. 2 A-A to sectional view;
Fig. 4 is the front view that transmits the plus-pressure key in the utility model;
Fig. 5 is the vertical view of Fig. 4.
Among the figure: 1, bolt I, 2, the lock washer I, 3, drive sleeve, 4, the bolt II, 5, packing ring, 6, guide ring, 7, the screw I, 8, sheath, 9, transmit torque keys, 10, transmit the plus-pressure key, 11, screw II, 12, the lock washer II, 13, annulus, 14, pressurization key plate.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the dismountable combined drive key of the utility model rotary digging drill power head, comprise bolt I 1, lock washer I 2, drive sleeve 3, bolt II 4, packing ring 5 and guide ring 6, guide ring 6 is assemblied in drive sleeve 3 upper surfaces by bolt II 4, packing ring 5, and drive sleeve 3 is fixed with the Spiral digging machine unit head by bolt I 1, lock washer I 2; As Fig. 2, Fig. 3 and shown in Figure 4, also comprise and transmit torque keys and transmit plus-pressure key 10, drive sleeve 3 inwalls are processing three road keyways evenly, the median plane of three road keyways 120 ° at interval in a circumferential direction is uniform, all be equipped with on the three road keyways and transmit torque keys 9, it is fastening by screw I 7 and sheath 8 to transmit torque keys 9, and screw I 7 and sheath 8 can effectively be fixed on the keyway transmitting torque keys 9; Transmit plus-pressure key 10 and be installed in drive sleeve 3 lower surfaces by screw II 11, lock washer II 12, screw II 11 is carried out fastening, and it is loosening that lock washer II 12 effectively prevents from transmitting plus-pressure key 10, guarantees to transmit the closely fixing of plus-pressure key 10 and drive sleeve 3; As shown in Figure 5, transmitting plus-pressure key 10 is made up of an annulus 13 and three pressurization key plates 14, three pressurization key plate 14 120 ° at intervals on annulus 13 inwalls are uniform, and the width of three pressurization key plates 14 is than the little 15mm-20mm of width that transmits torque keys 9, three 14 of pressurization key plates that can guarantee to transmit on the plus-pressure key 10 transmit plus-pressure, and do not transmit moment of torsion; Transmit the median plane of three pressurization key plates 14 on the plus-pressure key 10 and align with the median planes of three transmission torque keys 9 respectively, the integral body that drive sleeve 3, transmission torque keys 9 and transmission plus-pressure key 10 form an identical circular section drives key, can effectively transmit and disperse drilling rod to add to present a theatrical performance as the last item on a programme to driving the reaction force of key, avoid single driving key to bear pressure and caused bolt the I 1 loosening crooked even fracture that drives key.
When rotary drilling rig uses the friction type drilling rod, mainly transmit torque keys 9 by three on drive sleeve 3 inwalls and finish the revolution of driving drilling rod both forward and reverse directions, after wearing and tearing appears in work a period of time, earlier the guide ring 6 of drive sleeve 3 upper and lower sides is pulled down with transmitting plus-pressure key 10, the transmission torque keys 9 that will occur wearing and tearing is then pulled down and is changed; When rotary drilling rig used machine locking-type drilling rod, three transmission torque keys 9 on drive sleeve 3 inwalls realized driving the revolution of drilling rod both forward and reverse directions, finish the stressed function of transmission and transmit plus-pressure key 10, and the key that wearing and tearing occur is all independently detachable, changes.

Claims (3)

1. dismountable combined drive key of rotary digging drill power head, comprise bolt I (1), lock washer I (2), drive sleeve (3), bolt II (4), packing ring (5) and guide ring (6), guide ring (6) is assemblied in drive sleeve (3) upper surface by bolt II (4), packing ring (5), and drive sleeve (3) is fixed with rotary digging drill power head by bolt I (1), lock washer I (2); It is characterized in that, also comprise and transmit torque keys (9) and transmit plus-pressure key (10), drive sleeve (3) inwall is evenly processed three road keyways, and the median plane of three road keyways 120 ° at interval in a circumferential direction is uniform, all is equipped with on the three road keyways and transmits torque keys (9); Transmission plus-pressure key (10) is assemblied in the lower surface of drive sleeve (3), transmitting plus-pressure key (10) is made up of an annulus (13) and three pressurization key plates (14), three pressurization key plates (14), 120 ° at interval on annulus (13) inwall is uniform, and the width of three pressurization key plates (14) is wanted little 15mm-20mm than the width that transmits torque keys (9); Transmit the median plane of three the pressurization key plates (14) on the plus-pressure key (10) and align with three median planes that transmit torque keys (9) respectively, drive sleeve (3), transmit the integral body driving key of an identical circular section of torque keys (9) and transmission plus-pressure key (10) formation.
2. the dismountable combined drive key of a kind of rotary digging drill power head according to claim 1 is characterized in that, described transmission torque keys (9) is fastening by screw I (7) and sheath (8).
3. the dismountable combined drive key of a kind of rotary digging drill power head according to claim 1 is characterized in that, described transmission plus-pressure key (10) is installed in drive sleeve (3) lower surface by screw II (11), lock washer II (12).
CN 201320166930 2013-04-03 2013-04-03 Combined type driving key with detachable rotary drilling rig power head Withdrawn - After Issue CN203188903U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320166930 CN203188903U (en) 2013-04-03 2013-04-03 Combined type driving key with detachable rotary drilling rig power head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320166930 CN203188903U (en) 2013-04-03 2013-04-03 Combined type driving key with detachable rotary drilling rig power head

Publications (1)

Publication Number Publication Date
CN203188903U true CN203188903U (en) 2013-09-11

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CN 201320166930 Withdrawn - After Issue CN203188903U (en) 2013-04-03 2013-04-03 Combined type driving key with detachable rotary drilling rig power head

Country Status (1)

Country Link
CN (1) CN203188903U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195373A (en) * 2013-04-03 2013-07-10 徐州徐工基础工程机械有限公司 Detachable combined drive key for power head of rotary drilling rig
CN103590755A (en) * 2013-10-21 2014-02-19 北京市三一重机有限公司 Key bushing, hub and rotary drilling rig
CN104265155A (en) * 2014-07-23 2015-01-07 北京市三一重机有限公司 Power head buffer device for rotary drilling rig and rotary drilling rig
WO2015161664A1 (en) * 2014-04-25 2015-10-29 山河智能装备股份有限公司 Combined-type driving sleeve of drilling rig with reliably fixed draw key

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195373A (en) * 2013-04-03 2013-07-10 徐州徐工基础工程机械有限公司 Detachable combined drive key for power head of rotary drilling rig
WO2014161212A1 (en) * 2013-04-03 2014-10-09 徐州徐工基础工程机械有限公司 Detachable combined-type drive key for rotary drilling rig power head
CN103195373B (en) * 2013-04-03 2015-07-29 徐州徐工基础工程机械有限公司 The dismountable combined drive key of a kind of rotary digging drill power head
US10041298B2 (en) 2013-04-03 2018-08-07 Xuzhou Xugong Foundation Construction Machinery Co., Ltd Detachable combined-type drive key for rotary drilling rig power head
CN103590755A (en) * 2013-10-21 2014-02-19 北京市三一重机有限公司 Key bushing, hub and rotary drilling rig
CN103590755B (en) * 2013-10-21 2016-01-20 北京市三一重机有限公司 Key cover, wheel hub and rotary drilling rig
WO2015161664A1 (en) * 2014-04-25 2015-10-29 山河智能装备股份有限公司 Combined-type driving sleeve of drilling rig with reliably fixed draw key
CN104265155A (en) * 2014-07-23 2015-01-07 北京市三一重机有限公司 Power head buffer device for rotary drilling rig and rotary drilling rig

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130911

Effective date of abandoning: 20150729

RGAV Abandon patent right to avoid regrant