CN201802307U - Rotary drilling rig and power head transmission device thereof - Google Patents
Rotary drilling rig and power head transmission device thereof Download PDFInfo
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- CN201802307U CN201802307U CN2010205180968U CN201020518096U CN201802307U CN 201802307 U CN201802307 U CN 201802307U CN 2010205180968 U CN2010205180968 U CN 2010205180968U CN 201020518096 U CN201020518096 U CN 201020518096U CN 201802307 U CN201802307 U CN 201802307U
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- key
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- head transmission
- unit head
- torsion pass
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Abstract
The utility model discloses a power head transmission device comprising a key sleeve body (1),wherein a plurality of key slots (11) are formed on the inner wall of the key sleeve body (1), and a torsion transmitting key (2) is arranged in each key slot (11) in a matched manner; a first connecting part is arranged at the upper end of each torsion transmitting key (2) and a second connecting part is arranged at the lower part of each torsion transmitting key (2); a support sleeve (3) is arranged on the inner wall at the upper end of the key sleeve body (1) and a support ring (4) is arranged on that at the lower end of the key sleeve body (1); and the support sleeve (3) is connected with the first connecting part while the support ring (4) is connected with the second connecting part. On one hand, the safety and reliability of the work of the transmission device can be remarkably improved; on the other hand, the processing and the manufacture are convenient and the manufacturing cost can be effectively lowered. In addition, by adopting the transmission device, environment pollution and resource waste are avoided. The other main point of the utility model is to provide a rotary drilling rig employing the power head transmission device.
Description
Technical field
The utility model relates to the rotary drilling rig technical field, particularly a kind of unit head transmission device.In addition, the utility model also relates to a kind of rotary drilling rig that comprises this unit head transmission device.
Background technology
Along with the fast development of Building Trade in China, for piling machinery, especially the demand of rotary drilling rig is also increasing.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of prior art medium power head transmission device; Fig. 2 is the vertical view of Fig. 1 medium power head transmission device.
As shown in Figure 1, the unit head transmission device comprise key body 1 ', this key body 1 ' inwall on offer a plurality of keyways, be combined with in the keyway torsion pass key 2 ', key body 1 ' the upper surface be connected with top flange 3 ', the lower end be connected with flange in the bottom 4 '.As depicted in figs. 1 and 2, torsion pass key 2 ' and key body 1 ' inwall establish and offer tapped through hole, thereby torsion pass key 2 ' with key body 1 ' by bolt 5 ' fixedly connected.
The groundwork process of described unit head transmission device is: actuating unit illustrated in figures 1 and 2 is set in the outside of drilling rod, thereby rely on torsion pass key 2 ' two sides contact transmitting rotary power with the cooperation of drilling rod external key, rely on torsion pass key 2 ' the lower surface push down drilling rod and add the pressure that transmits vertically downward of presenting a theatrical performance as the last item on a programme and give drilling rod, thereby the inner cylinder face that relies on each torsion pass key 2 ' formation limit drilling rod radially degree of freedom keep the vertical work plane of drilling rod reaching strut stability, and then realize the construction purpose.When the unit head transfer torque, torsion pass key 2 ' with the outer key contacts of drilling rod also bears reaction force, when unit head pressurizes to drilling rod, torsion pass key 2 ' the lower surface bear from the bottom up reaction force.
There is following shortcoming in above-mentioned unit head transmission device of the prior art:
The first, key body 1 ' need be connected by bolt with clutch housing, so the lubrication oil of clutch female splined shaft can ooze out enter key body 1 ' inner peripheral surface by tapped through hole, thus cause serious environmental to pollute and the wasting of resources.
The second, in work progress, key body 1 ' and torsion pass key 2 ' between connecting bolt 5 ' under long-term vibration, can become flexible, come off and phenomenon such as fatigue fracture, need shut-down anti-revisionist, thereby functional reliability is not high, and has reduced operating efficiency.
The 3rd, key body 1 ' with each torsion pass key 2 ' by many row's bolts 5 ' fixedly connected, thereby screwed hole offer and bolt 5 ' tighten the waste that can cause man-hour; Simultaneously key body 1 ' the inner space limited, also be not easy to bolt 5 ' tighten.
The 4th, in the manufacture process of drilling rod, the uniformity that distributes because of the straightness accuracy that is difficult to guarantee drilling rod and drilling rod external key, thereby can cause torsion pass key 2 ' contact torsion pass or pressurization with drilling rod external key singly-bound makes that the drilling rod singly-bound is stressed to cause damage in advance; And be difficult to control radially degree of freedom of drilling rod, and cause strut buckling, make drilling rod steel pipe bottom shift to an earlier date stressed damage.
The 5th, torsion pass key 2 ' and key body 1 ' on process the compact bolt holes of many rows respectively, greatly reduced torsion pass key 2 ' and key body 1 ' fatigue strength, can produce microfissure thus in the work progress, thereby cause serious potential safety hazard.
The 6th, offering of the tapped through hole of key body 1 ' inner peripheral surface is difficult to realize technology and accuracy requirement, such as control of hole center to center distance etc., thereby brings very burden to processing.
The utility model content
The technical problems to be solved in the utility model is for providing a kind of unit head transmission device, and this device can significantly improve the security reliability of work on the one hand, and convenient processing and manufacture can effectively reduce manufacturing cost on the other hand; In addition, this device can also be avoided the environment pollution and the wasting of resources.Another technical problem that will solve of the utility model is for providing a kind of rotary drilling rig that comprises this unit head transmission device.
For solving the problems of the technologies described above, the utility model provides a kind of unit head transmission device, comprises the key body, and the inwall of described key body offers a plurality of keyways, is combined with the torsion pass key in each described keyway; The upper end of described torsion pass key is provided with first connecting portion, and its lower end is provided with second connecting portion; Be provided with support set in the inwall of described key body upper end, the inwall of described key body lower end is provided with support ring; Described support set is connected with described first connecting portion, and described support ring is connected with described second connecting portion.
Preferably, described torsion pass key comprises keypad, and described first connecting portion is first key lever that protrudes from described keypad upper surface; The lower surface of described support set is provided with first boss, and the gap between described first boss and the described key body inwall forms first cannelure, and described first key lever is assemblied in described first cannelure.
Preferably, the inwall of described key body bottom is along circumferentially offering mounting groove, and described support ring is located in the described mounting groove, the described support ring of bottom side wall support of described mounting groove.
Preferably, described torsion pass key comprises keypad, and described second connecting portion is second key lever that protrudes from described keypad lower surface; The upper surface of described support ring is provided with second boss, and the gap between the diapire of described second boss and described mounting groove forms second cannelure, and described second key lever is assemblied in described second cannelure.
Preferably, described support ring is divided into the segmental arc that at least three end faces are fitted successively, and each described segmental arc is fitted in the described mounting groove successively.
Preferably, in each described segmental arc, two end faces of the segmental arc of radian minimum are parallel to each other, and this segmental arc is fixedlyed connected with the bottom sidewall of described mounting groove.
Preferably, two sides of described torsion pass key are the inclined-plane, and two sidewalls of described keyway are the skew wall that cooperates with corresponding described inclined-plane.
Preferably, has the gap between described skew wall and the corresponding described inclined-plane.
Preferably, the upper end of described support set outer wall is provided with the inclined plane, and the gap between the inwall of described inclined plane and described key body is filled with scolder.
In addition, for solving the problems of the technologies described above, the utility model also provides a kind of rotary drilling rig, and this rotary drilling rig comprises above-mentioned each described unit head transmission device.
On the basis of existing technology, the upper end of the torsion pass key of unit head transmission device provided by the utility model is provided with first connecting portion, and its lower end is provided with second connecting portion; Be provided with support set in the inwall of described key body upper end, the inwall of described key body lower end is provided with support ring; Described support set is connected with described first connecting portion, and described support ring is connected with described second connecting portion, thereby by cooperating of support set and first connecting portion and cooperating of support ring and second connecting portion, the torsion pass key is located in the key body.
As from the foregoing, be not connected between the one, torsion pass key and key body, thereby the lubrication oil of clutch splined shaft can not pass through tapped through hole enter key body inner peripheral surface, thereby avoid the contaminated environment and the wasting of resources by bolt.They are two years old, the torsion pass key is located in the key body by support set and support ring, has changed bolt and has connected becoming flexible, come off and problem such as fatigue fracture of being brought, and no longer needing often stops work reprocesses, functional reliability is significantly improved, and operating efficiency also is improved.Its three, the torsion pass key is located in the key body by support set and support ring, changed bolt and connected the waste in the man-hour that is brought and the deficiency of assembly space, thereby make processing, make and assembling becomes convenient, significantly reduced cost.They are four years old, the torsion pass key is located in the key body by support set and support ring, thereby needn't on torsion pass key and key body, offer a plurality of tapped through holes, and then avoid the fatigue strength of torsion pass key and key body is impacted, thereby guarantee that torsion pass key and key body have enough structural strengths and mechanical property.
In sum, unit head transmission device provided by the utility model can significantly improve the security reliability of work on the one hand, and convenient processing and manufacture can effectively reduce manufacturing cost on the other hand; In addition, this device can also be avoided the environment pollution and the wasting of resources.
The technique effect of the technique effect of rotary drilling rig provided by the utility model and above-mentioned unit head transmission device is basic identical, does not repeat them here.
Description of drawings
Fig. 1 is the structural representation of prior art medium power head transmission device;
Fig. 2 is the vertical view of Fig. 1 medium power head transmission device;
Fig. 3 is the structural representation of a kind of embodiment medium power of the utility model head transmission device;
Fig. 4 be among Fig. 3 A-A to sectional view;
Fig. 5 is the structural representation of the key body of Fig. 3 medium power head transmission device;
Fig. 6 is the main pseudosection of key body among Fig. 5;
Fig. 7 is the structural representation of the torsion pass key of Fig. 3 medium power head transmission device;
Fig. 8 is the front view of torsion pass key among Fig. 7;
Fig. 9 is the structural representation of the support set of Fig. 3 medium power head transmission device;
Figure 10 is the main pseudosection of support set among Fig. 9;
Figure 11 is the structural representation of the support ring of Fig. 3 medium power head transmission device;
Figure 12 is the main pseudosection of support ring among Figure 11;
Figure 13 is the upward view of support ring among Figure 11.
Wherein, component names is that corresponding relation between the Reference numeral is among Fig. 1 and Fig. 2:
Key body 1 '; Keyway 1 ' 1; Torsion pass key 2 '; Top flange 3 '; Flange in the bottom 4 '; Bolt 5 ';
Corresponding relation among Fig. 3 to Figure 13 between component names and the Reference numeral is:
Support set 3; First boss 31; Inclined plane 32;
The specific embodiment
Core of the present utility model is for providing a kind of unit head transmission device, and this device can significantly improve the security reliability of work on the one hand, and convenient processing and manufacture can effectively reduce manufacturing cost on the other hand; In addition, this device can also be avoided the environment pollution and the wasting of resources.Another core of the utility model is for providing a kind of rotary drilling rig that comprises this unit head transmission device.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, Fig. 3 is the structural representation of a kind of embodiment medium power of the utility model head transmission device; Fig. 4 be among Fig. 3 A-A to sectional view; Fig. 5 is the structural representation of the key body of Fig. 3 medium power head transmission device; Fig. 6 is the main pseudosection of key body among Fig. 5.
In one embodiment, unit head transmission device provided by the utility model comprises key body 1, and as described in Figure 5, the inwall of key body 1 offers a plurality of false bosses 13, forms keyway 11 between adjacent two false bosses, is combined with torsion pass key 2 in each keyway 11; On the basis of this prior art, as shown in Figure 3, be provided with support set 3 in the inwall of key body 1 upper end, the inwall of key body 1 lower end is provided with support ring 4, and the upper end of torsion pass key 2 is provided with first connecting portion, its lower end is provided with second connecting portion, and support set 3 is connected with described first connecting portion, and support ring 4 is connected with described second connecting portion.By cooperating of support set 3 and first connecting portion and cooperating of support ring 4 and second connecting portion, thereby torsion pass key 2 is located in the key body 1.
As from the foregoing, be not connected between the one, torsion pass key 2 and key body 1, thereby the lubrication oil of clutch splined shaft can be by the inner peripheral surface of tapped through hole enter key body 1, thereby avoided the contaminated environment and the wasting of resources by bolt.They are two years old, torsion pass key 2 is located in the key body 1 by support set 3 and support ring 4, changed bolt and connected becoming flexible, come off and problem such as fatigue fracture of being brought, and no longer needing often stops work reprocesses, functional reliability is significantly improved, and operating efficiency also is improved.Its three, torsion pass key 2 is located in the key body 1 by support set 3 and support ring 4, changed bolt and connected the waste in the man-hour that is brought and the deficiency of assembly space, thereby make processing, make and assembling becomes convenient, significantly reduced cost.They are four years old, torsion pass key 2 is located in the key body 1 by support set 3 and support ring 4, thereby needn't on torsion pass key 2 and key body 1, offer a plurality of tapped through holes, and then avoid the fatigue strength of torsion pass key 2 and key body 1 is impacted, thereby guarantee that torsion pass key 2 and key body 1 have enough structural strengths and mechanical property.
Need to prove; the foregoing description is for the syndeton of support set 3 with described first connecting portion; and the syndeton of support ring 4 and described second connecting portion does not all limit; thereby any one syndeton; as long as can make torsion pass key 2 be located in the keyway 11 in the key body 1, just all should be within protection domain of the present utility model.
Certainly, can design a kind of concrete syndeton; Please refer to Fig. 7, Fig. 8, Fig. 9 and Figure 10, Fig. 7 is the structural representation of the torsion pass key of Fig. 3 medium power head transmission device; Fig. 8 is the front view of torsion pass key among Fig. 7; Fig. 9 is the structural representation of the support set of Fig. 3 medium power head transmission device; Figure 10 is the main pseudosection of support set among Fig. 9.
As shown in Figure 7 and Figure 8, torsion pass key 2 comprises keypad 21, and described first connecting portion is first key lever 22 that protrudes from keypad 21 upper surfaces; As Fig. 9 and shown in Figure 10, the lower surface of support set 3 is provided with first boss 31; As shown in Figure 3, the gap between first boss 31 and key body 1 inwall forms first cannelure, and first key lever 22 is assemblied in described first cannelure.Particularly, as shown in Figure 3, first key lever 22 and first boss 31 are fitted the lower surface of the upper surface butt support set 3 of first key lever 22, the lower surface of upper surface butt first boss 31 of keypad 21.This support set 3 not only forms first cannelures for torsion pass key 2, thereby and and key body 1 between assembly structure have rational mechanical property and realize bearing drilling rod all anti-plus-pressures unit head.
Further, please refer to Fig. 3 and Fig. 6, the inwall of key body 1 bottom is along circumferentially offering mounting groove 12, and support ring 4 is located in the mounting groove 12, the bottom sidewall supported ring 4 of mounting groove 12.Need to prove that this mounting groove 12 can be formed by escape, the structure design of escape not only provides rational technology for processing keyway 11, and provides the installation site for support ring 4 simultaneously.On this basis, can make specific design to the syndeton between support ring 4 and the torsion pass key 2.
Please refer to Figure 11, Figure 12 and Figure 13, Figure 11 is the structural representation of the support ring of Fig. 3 medium power head transmission device; Figure 12 is the main pseudosection of support ring among Figure 11; Figure 13 is the upward view of support ring among Figure 11.
As shown in Figure 7 and Figure 8, described second connecting portion is second key lever 23 that protrudes from keypad 21 lower surfaces; As Figure 11 and shown in Figure 12, the upper surface of support ring 4 is provided with second boss 41; As shown in Figure 3, the gap between the diapire of second boss 41 and mounting groove 12 forms second cannelure, and second key lever 23 is assemblied in described second cannelure.Particularly, as shown in Figure 3, the lower surface of keypad 21 compresses the upper surface of second boss 41, and the lower surface of second key lever 23 compresses the upper surface of support ring 4, second boss 41 and 23 applyings of second key lever.This kind syndeton has realized being connected between support ring 4 and the torsion pass key 2 easily, and structure is comparatively simple, the connection reliability height.
Please refer to Figure 11, Figure 12 and Figure 13, on the basis of above-mentioned any embodiment, can make specific design the structure of support ring 4.Particularly, support ring 4 is divided into the segmental arc that at least three end faces are fitted successively, and each described segmental arc is fitted in the mounting groove 12 successively.
Further, as shown in figure 11, in each described segmental arc, two end faces of the segmental arc 42 of radian minimum are parallel to each other, and in other bigger segmental arcs, have certain included angle between two end faces; During installation, the bigger segmental arc of radian is installed earlier, the segmental arc 42 of radian minimum is installed at last, and the segmental arc 42 of radian minimum and the bottom sidewall of mounting groove 12 are passed through bolt.In this structure, as shown in figure 13, the segmental arc 42 of radian minimum is owing to pass through bolt, thereby can not come off, simultaneously since other radians bigger owing to form an angle between two end face, thereby make and form self-locking structure between the adjacent segmental arc, thereby can not come off yet.During dismounting, order is identical, and the segmental arc 42 of dismounting radian minimum is dismantled other segmental arcs more earlier.
Please refer to Fig. 9 and Figure 10, for ease of the welding between support set 3 and the key body 1, the upper end of support set 3 outer walls is provided with inclined plane 32, form big gap between the inwall of inclined plane 32 and key body 1, this gap can be used for filling scolder, thereby support set 3 and key body 1 are firmly welded together.
Further, on the basis of above-mentioned any embodiment, can also make further improvement to the assembly structure between the keyway 11 of torsion pass key 2 and key body 1.
Particularly, as shown in Figure 4, two sides of torsion pass key 2 can be inclined-plane 24, and two sidewalls of keyway 11 can be the skew wall 111 that cooperates with corresponding inclined-plane 24, that is keyway 11 is a kind of oat tail groove structure.When torsion pass key 2 and keyway 11 impacts when contact, this kind structure design can increase contact area, reduces impact stress, thus the damage that minimizing causes torsion pass key 2 and keyway 11.
Further, as shown in Figure 4, the width of keyway 11 increases, thereby make and have the gap between the skew wall 111 of keyway 11 and the torsion pass key 2 corresponding inclined-planes 24, thereby torsion pass key 2 can slide along circumferential, so that reach best mated condition between torsion pass key 2 and the drilling rod external key, avoid the drilling rod singly-bound stressed and damage in advance.In addition, torsion pass key 2 can also control to adjust the radially degree of freedom of drilling rod along circumferentially sliding, thereby can improve drilling rod because the bottom steel pipe that strut buckling caused damages in advance.
The assembling process of above-mentioned unit head transmission device provided by the utility model is: in support set 3 load key bodies 1, and making and the welding concordant of the upper surface of support set 3 with key body 1 upper surface, first boss 31 of welding back support set 3 forms first cannelure with the inwall of key body 1; Then, torsion pass key 2 is inserted in the keyway 11 of key body 1, make the key lever 22 of winning insert described first cannelure carrying on the torsion pass key 2; Then, in the mounting groove 12 of support ring 4 each segmental arc according to the described order load key of preamble body 1, form support ring 4, form second cannelure at this moment between the diapire of second boss 41 of support ring 4 and mounting groove 12, and second key lever 23 of torsion pass key lower end is pressed in this second cannelure.During the unit head torsion pass, torsion pass key 2 sides contact with the sidewall of keyway 1 and transferring power is given drilling rod; Keypad 21 lower surfaces of unit head when pressurization torsion pass key 2 add to present a theatrical performance as the last item on a programme with drilling rod and contact, and transmit anti-plus-pressure to support set 3.
In addition, the utility model also provides a kind of rotary drilling rig, and this rotary drilling rig comprises drilling rod, and drilling rod is provided with the drilling rod external key; Described rotary drilling rig also comprises above-mentioned any embodiment medium power head transmission device, and this unit head transmission device is set in the outside of drilling rod, and torsion pass key 2 cooperates so that transmit pressure and moment of torsion with the drilling rod external key.
More than a kind of pipe rope irrigating sleeve provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a unit head transmission device comprises key body (1), and the inwall of described key body (1) offers a plurality of keyways (11), is combined with torsion pass key (2) in each described keyway (11); It is characterized in that the upper end of described torsion pass key (2) is provided with first connecting portion, its lower end is provided with second connecting portion; Be provided with support set (3) in the inwall of described key body (1) upper end, the inwall of described key body (1) lower end is provided with support ring (4); Described support set (3) is connected with described first connecting portion, and described support ring (4) is connected with described second connecting portion.
2. unit head transmission device as claimed in claim 1 is characterized in that, described torsion pass key (2) comprises keypad (21), and described first connecting portion is for protruding from first key lever (22) of described keypad (21) upper surface; The lower surface of described support set (3) is provided with first boss (31), and the gap between described first boss (31) and described key body (1) inwall forms first cannelure, and described first key lever (22) is assemblied in described first cannelure.
3. unit head transmission device as claimed in claim 1 or 2, it is characterized in that, the inwall of described key body (1) bottom is along circumferentially offering mounting groove (12), and described support ring (4) is located in the described mounting groove (12), the described support ring of bottom side wall support (4) of described mounting groove (12).
4. unit head transmission device as claimed in claim 3 is characterized in that, described torsion pass key (2) comprises keypad (21), and described second connecting portion is for protruding from second key lever (23) of described keypad (21) lower surface; The upper surface of described support ring (4) is provided with second boss (41), and the gap between the diapire of described second boss (41) and described mounting groove (12) forms second cannelure, and described second key lever (23) is assemblied in described second cannelure.
5. unit head transmission device as claimed in claim 3 is characterized in that, described support ring (4) is divided into the segmental arc that at least three end faces are fitted successively, and each described segmental arc is fitted in the described mounting groove (12) successively.
6. unit head transmission device as claimed in claim 5 is characterized in that, in each described segmental arc, two end faces of the segmental arc of radian minimum (42) are parallel to each other, and this segmental arc (42) is fixedlyed connected with the bottom sidewall of described mounting groove (12).
7. unit head transmission device as claimed in claim 1 or 2 is characterized in that, two sides of described torsion pass key (2) are inclined-plane (24), and two sidewalls of described keyway (12) are the skew wall (111) that cooperates with corresponding described inclined-plane (24).
8. unit head transmission device as claimed in claim 7 is characterized in that, has the gap between described skew wall (111) and the corresponding described inclined-plane (24).
9. unit head transmission device as claimed in claim 1 or 2 is characterized in that, the upper end of described support set (3) outer wall is provided with inclined plane (32), and the gap between the inwall of described inclined plane (32) and described key body (1) is filled with scolder.
10. a rotary drilling rig is characterized in that, also comprises as each described unit head transmission device of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205180968U CN201802307U (en) | 2010-09-03 | 2010-09-03 | Rotary drilling rig and power head transmission device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205180968U CN201802307U (en) | 2010-09-03 | 2010-09-03 | Rotary drilling rig and power head transmission device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802307U true CN201802307U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205180968U Expired - Lifetime CN201802307U (en) | 2010-09-03 | 2010-09-03 | Rotary drilling rig and power head transmission device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956524A (en) * | 2010-09-03 | 2011-01-26 | 北京市三一重机有限公司 | Rotary drilling rig and power head gearing thereof |
| CN102650195A (en) * | 2012-04-25 | 2012-08-29 | 上海浦耀钻杆配件制造厂 | Drill rod reducing joint of friction-type rotary drilling rig |
| CN102913123A (en) * | 2012-11-02 | 2013-02-06 | 玉柴桩工(常州)有限公司 | Wedge key bar for power head and 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 |
| 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 |
| EP3135853A4 (en) * | 2014-04-25 | 2017-07-05 | Sunward Intelligent Equipment Co., Ltd. | Combined-type driving sleeve of drilling rig with reliably fixed draw key |
-
2010
- 2010-09-03 CN CN2010205180968U patent/CN201802307U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956524A (en) * | 2010-09-03 | 2011-01-26 | 北京市三一重机有限公司 | Rotary drilling rig and power head gearing thereof |
| WO2012028006A1 (en) * | 2010-09-03 | 2012-03-08 | 湖南三一智能控制设备有限公司 | Rotary drilling rig and transmission device for power head thereof |
| CN102650195A (en) * | 2012-04-25 | 2012-08-29 | 上海浦耀钻杆配件制造厂 | Drill rod reducing joint of friction-type rotary drilling rig |
| CN102650195B (en) * | 2012-04-25 | 2016-03-30 | 上海浦耀钻杆配件制造厂 | A kind of variable-diameter connector of drill rod of friction type rotary drilling rig |
| CN102913123A (en) * | 2012-11-02 | 2013-02-06 | 玉柴桩工(常州)有限公司 | Wedge key bar for power head and power head |
| 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 |
| 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 |
| EP3135853A4 (en) * | 2014-04-25 | 2017-07-05 | Sunward Intelligent Equipment Co., Ltd. | Combined-type driving sleeve of drilling rig with reliably fixed draw key |
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