CN204754763U - Dig rig power transmission structure soon - Google Patents
Dig rig power transmission structure soon Download PDFInfo
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- CN204754763U CN204754763U CN201420786110.0U CN201420786110U CN204754763U CN 204754763 U CN204754763 U CN 204754763U CN 201420786110 U CN201420786110 U CN 201420786110U CN 204754763 U CN204754763 U CN 204754763U
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- key bar
- actuating sleeve
- sleeve parts
- drilling rod
- internal key
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Abstract
The utility model discloses a dig rig power transmission structure soon, including drilling rod (2), install actuating sleeve parts (3) and built -in strip (1) in the piled driving machinery unit head, interior splines can dismantle and install on actuating sleeve parts inner cylinder face, the drilling rod is installed in the pipe of actuating sleeve parts, is equipped with the outer splines who uses with built -in strip cooperation on the outer face of cylinder of drilling rod. The utility model discloses when the excessive wear appears in the position that splines contacted, only need carry out quick effectual change to the built -in strip, need not to polish again, restoration such as welding, reduced device structure's time, it is secure to change in the back splines's position and size precision, higher than prosthetic precision is wanted, has improved operating efficiency and subsequent result of use. And the outer splines local section of drilling rod suitably the thickening can make that splines the contact region's local extrusion stress is effectively alleviateed during the power transmission, alleviate its tired and wearing and tearing phenomenon, the extension trouble -free activity duration of complete machine, ensure the dependable performance of host computer.
Description
Technical field
The utility model relates to a kind of piling machinery, specifically a kind of for the rotary drilling rig power transmission structure between unit head and drilling rod, belongs to a construction equipment technical field.
Background technology
At present, various ground foundation engineering construction equipment, perpendicular in the pore-forming operation process of ground concrete castinplace pile, needed for such construction equipment function, its structure all primarily of unit head and drilling rod composition, in order to the efficient transmission of power during completing boring.And according to the difference of practice of construction geological conditions, by the difference of partial structurtes, existing drilling rod can be divided into " friction type drilling rod " and " machine locking-type drilling rod ".But be no matter the drilling rod of " friction type " or " machine locking-type " structure, in practice of construction process, all can realize the reliable delivery of power between unit head, the stable performance of associated components, easy to operate, efficiency of construction is high, is deeply subject to the welcome of market users.
But, in the structure of above-mentioned critical piece, the inner cylinder face being arranged on the actuating sleeve parts in unit head is provided with internal key bar, drilling rod external cylindrical surface be provided with internal key bar with the use of external key bar, the actuating sleeve parts in unit head with coordinate by inside and outside key bar between drilling rod the reliable delivery realizing power.In work progress, once there is excessive wear in the position that key bar contacts, no matter be internal key bar or external key bar, because it is all welding as one with associated components, therefore will damaged contact surface be caused all cannot to change fast and effectively, equipment must be made to stop operation immediately and polished, REPAIR WELDING.And maintenance needed for time longer, the reparation precision formed is lower, has had a strong impact on operating efficiency and follow-up result of use.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of rotary drilling rig power transmission structure, can carry out the internal key bar be arranged in actuating sleeve parts changing in time fast, drilling rod upper end external key bar local section suitably thickeies (increase material), during power transmission, the local compression stress of key bar contact area, is effectively alleviated, and can alleviate its tired and wear phenomenon, extend the complete machine trouble-free activity duration, guarantee the dependable performance of main frame.
To achieve these goals, a kind of rotary drilling rig power transmission structure that the utility model adopts, comprise drilling rod and be arranged on the actuating sleeve parts in piling machinery unit head, also comprise internal key bar, described internal key bar is detachable and be arranged on actuating sleeve parts inner cylinder face, described drilling rod is arranged in the pipe of actuating sleeve parts, the external cylindrical surface of drilling rod be provided with internal key bar with the use of external key bar.
Also comprise shearing resistance cover, described shearing resistance cover is arranged between internal key bar and actuating sleeve parts.
Described internal key bar is arranged on the inner cylinder face of actuating sleeve parts by screw and lock washer.
Described actuating sleeve parts comprise pipe and flange, and described flange is welded on the position, middle and lower part of pipe external cylindrical surface, flange has some screwed holes and circular hole; Described pipe is through precision optical machinery machine-shaping, and boss structure is left at the external cylindrical surface position overlapped with flange, and uniform three place's grooves on inner cylinder face, bottom portion of groove is plane structure.
Described internal key bar is arranged in the groove on actuating sleeve parts inner cylinder face, and is connected with adopting embedded connected mode between actuating sleeve parts; Described internal key bar is symmetrical structure, and the structure of its size and groove matches.
The middle position of described actuating sleeve parts further groove width, have several sizes are identical, spacing is equal counterbore and screwed hole from top to bottom, the through hole that described internal key bar Central Symmetry face has counterbore and is used in combination with groove upper screwed hole.
The two ends of described shearing resistance cover embed in the counterbore of actuating sleeve parts and the counterbore of internal key bar side respectively.
Described drilling rod is that more piece is nested in together and telescopic build-up member, often saves drilling rod and includes corresponding external key bar, seamless steel pipe and Inner key, according to the difference of relative position, three requires that inside and outside circle cylinder corresponding with seamless steel pipe is respectively integrally welded; The external key bar that outermost one saves drilling rod upper end takes local thickening measure, increases by more than 20% with the real contact area of internal key bar.
Compared with prior art, the utility model is by the mounting means of change internal key bar, by being welded to connect of former actuating sleeve parts and internal key bar, change dismountable mounting means into, preferred embedded dismountable mode connects, on the one hand, adopt this connected mode, when there is excessive wear in the position that key bar contacts, only equipment need be made to stop operation immediately, can change fast and effectively internal key bar, without the need to polishing again, the reparations such as welding, decrease the time of maintenance of equipment, and its change after the position of internal key bar and dimensional accuracy secure, more much higher than the precision of repairing, improve operating efficiency and follow-up result of use, on the other hand, also necessary condition is created for the local thickness of most acromere drilling rod external key bar increases, and the local thickness of most acromere drilling rod external key bar will increase its real area contacted with internal key bar, and then effectively can reduce relative keys bar localized contact stress in power transmission process, alleviate the fatigue of key strip material, the degree of wearing and tearing to greatest extent, improve and extend reliability and the application life of this equipment, and internal key bar is designed to the structure of full symmetric, when the damage of its side, when cannot continuing construction, can change opposite side is at once work plane, convenient and swift, and its operating efficiency is able to effective raising.In addition, the introducing of shearing resistance nested structure between actuating sleeve parts and internal key bar, its two ends embed in the counterbore of actuating sleeve and the counterbore of internal key bar side respectively, not only can guarantee the reliable delivery of the normal moment of torsion of this equipment, even if there is the pressurization drilling condition of " machine locking-type " drilling rod, the pressure loading produced is born primarily of shearing resistance cover, will not cause loosening of trip bolt.This structural maintenance is easy, have higher promotional value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 A-A to schematic cross-section;
Fig. 3 is the close-up schematic view at I place in Fig. 1;
Fig. 4 be in Fig. 2 C-C to cross section use figure.
In figure: 1, internal key bar, 2, drilling rod, 3, actuating sleeve parts, 4, shearing resistance cover, 5, lock washer, 6, screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 4, a kind of rotary drilling rig power transmission structure, comprise drilling rod 2, be arranged on actuating sleeve parts 3 in piling machinery unit head and internal key bar 1, described internal key bar 1 is detachable and be arranged on actuating sleeve parts 3 inner cylinder face, described drilling rod 2 is arranged in the pipe of actuating sleeve parts 3, the external cylindrical surface of drilling rod 2 be provided with internal key bar 1 with the use of external key bar.
During work, because internal key bar 1 is detachably arranged on actuating sleeve parts 3 inner cylinder face, when there is excessive wear in the position that key bar contacts, only equipment need be made to stop operation immediately, can change fast and effectively internal key bar 1, without the need to carrying out again polishing, the reparation such as welding, decrease the time of maintenance of equipment, and its change after the position of internal key bar 1 and dimensional accuracy secure, more much higher than the precision of repairing, improve operating efficiency and follow-up result of use.Consider the transmission of power, be connected by Embedded mode between described internal key bar 1 with driving key member 3.
Preferably, shearing resistance cover 4 also can be installed between internal key bar 1 and actuating sleeve parts 3.In stake construction equipment normal drill (construction) period, driving force (moment of torsion) from unit head is delivered on drilling rod 2 (along with the progressively increase of transmitted load by means of actuating sleeve parts 3, shearing resistance cover 4, internal key bar 1, the side of internal key bar 1 contacts with actuating sleeve parts 3 region, also the transmission of power can be participated in), and continue to drive associated components to rotate, complete the operation function of expection.When using " machine locking-type " drilling rod and implement " pressurization is crept into " operation, its plus-pressure (load) is balanced with the frictional force of actuating sleeve parts 3 contact area primarily of shearing resistance cover 4 and internal key bar 1, guarantees to cause loosening of annexation between them.
Above-mentioned internal key bar 1, can be connected with lock washer 5 by screw 6 between shearing resistance cover 4 and actuating sleeve parts 3, the mode adopting screw to connect connects, be more convenient for dismantling, as when key bar the position that contacts there is excessive wear time, only need stop operation, fast by screw disassembling, and internal key bar 1 is changed, without the need to polishing to it again, the repairs such as welding, further reduce the time of maintenance of equipment and shutdown, and its change after the position of internal key bar 1 and dimensional accuracy secure, more much higher than the precision of repairing, further increase operating efficiency and follow-up result of use.And the setting of lock washer 5 can effectively prevent screw 6 and shearing resistance from overlapping 4, loosen between internal key bar 1, fixing illusive situation, described lock washer 5 can adopt applicable extraordinary lock washer.
Preferably, above-mentioned actuating sleeve parts 3 comprise pipe and flange, and described flange is welded on the position, middle and lower part of pipe external cylindrical surface, flange has some screwed holes and circular hole; Described pipe is through precision optical machinery machine-shaping, and in order to avoid welding stress is on the impact of pipe comprehensive mechanical performance, boss structure is left at the external cylindrical surface position overlapped with flange, and uniform three place's grooves on pipe inner cylinder face, bottom portion of groove is plane structure.
Preferably, above-mentioned internal key bar 1 is arranged in the groove on actuating sleeve parts 3 inner cylinder face, and is connected with adopting embedded connected mode between actuating sleeve parts 3; Described internal key bar 1 is symmetrical structure, and the structure of its size and groove matches.Specifically, described internal key bar 1 adopts rectangular plate type structure, and the side that its thickness direction is corresponding with baseplane is arc surface, and actuating sleeve parts 3 integrally mounted after, the axis of its cambered surface and pipe dead in line; In cambered surface unilateral observation, the length of its rectangle is consistent with driving the height of pipe in key member 3, and width keeps matching with pipe inner groovy.This laminating between described internal key bar 1 and driving key member 3 is more conducive to the transmission of power.
In order to improve the transmission of power further, guarantee that internal key bar 1 is connected with driving key member 3 more stable, can in the middle position of actuating sleeve parts 3 further groove width, have several sizes from top to bottom identical, the counterbore that spacing is equal and screwed hole, and the through hole having counterbore and be used in combination with groove upper screwed hole on described internal key bar 1 Central Symmetry face, specifically the middle part of each axis is through hole, the both sides of internal key bar 1 thickness are the counterbore of different-diameter, the position of its axis is coordinated mutually with the counterbore of above-mentioned actuating sleeve parts 3 and screwed hole, its spacing is also identical with pipe relevant parameter.
Based on said structure, the two ends of described shearing resistance cover 4 embed in the counterbore of actuating sleeve parts 3 and the counterbore of internal key bar 1 side respectively.The introducing of this structure shearing resistance cover 4, not only can guarantee the reliable delivery of the normal moment of torsion of this equipment, even if there is the pressurization drilling condition of " machine locking-type " drilling rod, the pressure loading produced also is born primarily of shearing resistance cover, will not cause loosening of trip bolt, stability is higher.
Described drilling rod 2 is nested in together and telescopic build-up member for more piece, often save drilling rod and include external key bar, seamless steel pipe and Inner key, according to the difference of relative position, three requires that inside and outside circle cylinder corresponding with seamless steel pipe is respectively integrally welded, without built-in on the certainly interior joint; Simultaneously, the external key bar that can save drilling rod upper end to outermost one carries out the measure of partial thickening (increase material), its real area contacted with internal key bar 1 is made to increase by more than 20%, effectively can reduce duration of work like this to contact the extrusion stress of region material, thus greatly alleviate fatigue and the degree of wear of key bar work plane, for the reliability improving a construction equipment has further established sturdy basis.Certainly, other multiple different component are also welded in the outside of seamless steel pipe simultaneously, and the flange for connecting is contained in the upper end as outermost one joint, and the two ends of the interior joint are respectively containing hanger and square head structure, and all the other respectively save similar.
During installation, first actuating sleeve parts 3 can be arranged on digs in the power head part of drilling equipment, then in the counterbore in actuating sleeve parts 3 groove, shearing resistance cover 4 is installed one by one, successively internal key bar 1, lock washer 5 and screw 6 are installed again, and by the screw-down torque of regulation fastening it, final drilling rod 2 is installed.
From said structure, the utility model is by the mounting means of change internal key bar, by being welded to connect of former actuating sleeve parts and internal key bar, change dismountable mounting means into, preferred embedded dismountable mode connects, on the one hand, adopt this connected mode, when there is excessive wear in the position that key bar contacts, only equipment need be made to stop operation immediately, can change fast and effectively internal key bar, without the need to polishing again, the reparations such as welding, decrease the time of maintenance of equipment and shutdown, and its change after the position of internal key bar and dimensional accuracy secure, more much higher than the precision of repairing, improve operating efficiency and follow-up result of use, on the other hand, owing to eliminating the attachment weld between former actuating sleeve parts and internal key bar, also necessary condition is created for the local thickness of most acromere drilling rod external key bar increases, and the local thickness of most acromere drilling rod external key bar will increase its area of contacting actual in internal key bar, and then effectively can reduce relative keys bar localized contact stress in power transmission process, alleviate the fatigue of key strip material, the degree of wearing and tearing to greatest extent, and internal key bar is designed to the structure of full symmetric, when the damage of its side, when cannot continuing construction, can change opposite side is at once work plane, convenient and swift, and its operating efficiency is able to effective raising.In addition, the introducing of shearing resistance nested structure between actuating sleeve parts and internal key bar, its two ends embed in the counterbore of actuating sleeve and the counterbore of internal key bar side respectively, not only can guarantee the reliable delivery of the normal moment of torsion of this equipment, even if there is the pressurization drilling condition of " machine locking-type " drilling rod, the pressure loading produced is born primarily of shearing resistance cover, will not cause loosening of trip bolt.This structural maintenance is easy, have higher promotional value.
Claims (7)
1. a rotary drilling rig power transmission structure, comprise drilling rod (2) and be arranged on the actuating sleeve parts (3) in piling machinery unit head, it is characterized in that, also comprise internal key bar (1), described internal key bar (1) is detachable and be arranged on actuating sleeve parts (3) inner cylinder face, described drilling rod (2) is arranged in the pipe of actuating sleeve parts (3), the external cylindrical surface of drilling rod (2) be provided with internal key bar (1) with the use of external key bar; Also comprise shearing resistance cover (4), described shearing resistance cover (4) is arranged between internal key bar (1) and actuating sleeve parts (3).
2. a kind of rotary drilling rig power transmission structure according to claim 1, it is characterized in that, described internal key bar (1) is arranged on the inner cylinder face side of actuating sleeve parts (3) by screw (6) and lock washer (5).
3. a kind of rotary drilling rig power transmission structure according to claim 2, it is characterized in that, described actuating sleeve parts (3) comprise pipe and flange, and described flange is welded on the position, middle and lower part of pipe external cylindrical surface, flange has some screwed holes and circular hole; Described pipe is through precision optical machinery machine-shaping, and boss structure is left at the external cylindrical surface position overlapped with flange, and uniform three place's grooves on inner cylinder face, bottom portion of groove is plane structure.
4. a kind of rotary drilling rig power transmission structure according to claim 3, it is characterized in that, described internal key bar (1) is arranged in the groove on actuating sleeve parts (3) inner cylinder face, and adopts embedded connected mode to be connected with between actuating sleeve parts (3); Described internal key bar (1) is symmetrical structure, and the structure of its size and groove matches.
5. a kind of rotary drilling rig power transmission structure according to claim 4, it is characterized in that, the middle position of described actuating sleeve parts (3) further groove width, have several sizes are identical, spacing is equal counterbore and screwed hole from top to bottom, the through hole that described internal key bar (1) Central Symmetry face has counterbore and is used in combination with groove upper screwed hole.
6. a kind of rotary drilling rig power transmission structure according to claim 5, is characterized in that, the two ends of described shearing resistance cover (4) embed in the counterbore of actuating sleeve parts (3) and the counterbore of internal key bar (1) side respectively.
7. a kind of rotary drilling rig power transmission structure according to claim 2, it is characterized in that, described drilling rod (2) is nested in together and telescopic build-up member for more piece, often save drilling rod and include external key bar, seamless steel pipe and Inner key, according to the difference of relative position, three requires that inside and outside circle cylinder corresponding with seamless steel pipe is respectively integrally welded; The real contact area of external key bar and internal key bar (1) that outermost one saves drilling rod upper end increases by more than 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786110.0U CN204754763U (en) | 2014-12-12 | 2014-12-12 | Dig rig power transmission structure soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786110.0U CN204754763U (en) | 2014-12-12 | 2014-12-12 | Dig rig power transmission structure soon |
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| Publication Number | Publication Date |
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| CN204754763U true CN204754763U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420786110.0U Active CN204754763U (en) | 2014-12-12 | 2014-12-12 | Dig rig power transmission structure soon |
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| CN (1) | CN204754763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481393A (en) * | 2014-12-12 | 2015-04-01 | 徐州徐工基础工程机械有限公司 | Power transmission structure of rotary drilling rig |
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- 2014-12-12 CN CN201420786110.0U patent/CN204754763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481393A (en) * | 2014-12-12 | 2015-04-01 | 徐州徐工基础工程机械有限公司 | Power transmission structure of rotary drilling rig |
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