CN211549569U - Anti-blocking multi-shaft drill body of pile machine - Google Patents
Anti-blocking multi-shaft drill body of pile machine Download PDFInfo
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- CN211549569U CN211549569U CN201921968853.9U CN201921968853U CN211549569U CN 211549569 U CN211549569 U CN 211549569U CN 201921968853 U CN201921968853 U CN 201921968853U CN 211549569 U CN211549569 U CN 211549569U
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Abstract
The utility model discloses an anti-jamming multi-shaft drill body of a pile machine, which comprises a drill rod group and a driving mechanism thereof, wherein the drill rod group comprises a main drill rod and an auxiliary drill rod which surrounds the main drill rod and is parallel to the main drill rod; the driving mechanism is used as a power output mechanism, and the output end of the driving mechanism transmits torque to the main drill rod so as to drive the main drill rod to rotate circumferentially; the drill rod group is provided with a rigid transmission assembly which takes the main drill rod as an active unit and the auxiliary drill rod as a passive unit, when the rigid transmission assembly works normally, the drill rod group is in circumferential rotation by the main drill rod in a linkage mode with the auxiliary drill rod taking the respective axis as the center, and when the rigid transmission assembly is blocked to be out of work, the drill rod group is in circumferential rotation by the main drill rod driving the auxiliary drill rod to take the axis of the main drill rod as the center. The utility model discloses a set up the rigidity drive assembly on the drilling rod group, drive main drill rod and deputy drill rod and carry out the conversion between rotation and the revolution according to the condition, the spoilage of the body is bored to greatly reduced multiaxis, improves the availability factor and the life-span of the body is bored to the multiaxis.
Description
Technical Field
The utility model relates to a building field especially relates to an anti-sticking of stake machine dies multiaxis and bores body.
Background
The stake machine is in the use, in order to improve the stirring drilling diameter scope to the soil body and to the broken degree of stirring of soil body, sets up the drill bit of a plurality of synergism on stirring stake machine, and adjacent drill bit rotates with opposite direction in order to reach stronger broken dynamics. Generally adopt gear box control drill bit to rotate, specifically be actuating mechanism control gear box operation, the gear in the gear box links firmly the top of main drill rod drill bit and the top of vice drill rod drill bit to drive main drill rod drill bit and vice drill rod drill bit and carry out the rotation, and a plurality of vice drill rod drill bit counter-rotation of rethread gear box cooperation, a plurality of drill bits are drilled down simultaneously and are stirred and reach stronger broken dynamics.
The multi-shaft drill body controlled by the gear box has the following disadvantages in actual use: under the multiaxis body normal condition, the counter rotation is carried out because of the gear engagement in the gear box to the auxiliary drill rod and main drill rod, when meetting the soil body hard or when the soil piece is harder great, the dynamics of the rotatory stirring of auxiliary drill rod is less than soil body intensity then unable broken soil body, and hinder the normal rotation of auxiliary drill rod, lead to the vice drilling rod to appear the card condition of dying, because auxiliary drill rod and main drill rod link to each other by gear engagement, the unable rotatory main drill rod that can lead to its meshing to link to each other of auxiliary drill rod also can't rotate, can lead to engaging gear to damage, the crooked breakage of drilling rod, actuating mechanism damages scheduling problem, reduce the availability factor and the life-.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a dead multiaxis of anti-sticking of stake machine bores body through set up the rigidity drive assembly on the drilling rod group, realizes that vice drilling rod rotation is obstructed back, is holistic circumferential direction by the axle center that main drill rod drove vice drilling rod and uses main drill rod as the center, and the effect of rotation is reconverted to vice drilling rod after the resistance disappears, and the spoilage of the body is bored to greatly reduced multiaxis, improves the availability factor and the life-span of the multiaxis and bores the body.
The utility model provides an anti-blocking multi-shaft drill body of a pile machine, which comprises a drill rod group and a driving mechanism thereof,
the drill rod group comprises a main drill rod and an auxiliary drill rod which surrounds the main drill rod and is parallel to the main drill rod;
the driving mechanism is used as a power output mechanism, and the output end of the driving mechanism transmits torque to the main drill rod so as to drive the main drill rod to rotate circumferentially;
the drill rod group is provided with a rigid transmission assembly which takes the main drill rod as an active unit and the auxiliary drill rod as a passive unit, when the rigid transmission assembly works normally, the drill rod group is in circumferential rotation by the main drill rod in a linkage mode with the auxiliary drill rod taking the respective axis as the center, and when the rigid transmission assembly is blocked to be out of work, the drill rod group is in circumferential rotation by the main drill rod driving the auxiliary drill rod to take the axis of the main drill rod as the center.
Furthermore, the rigid transmission assembly comprises a planetary gear set consisting of at least one group of transmission gears arranged on each drill rod, wherein the transmission gear arranged on the main drill rod is a sun gear, and the transmission gear arranged on each auxiliary drill rod is a planet gear;
the drill pipe drill further comprises a sealing shell which is penetrated by each drill pipe and covers the planetary gear set, and preferably, the top and/or the bottom of the sealing shell is/are conical surfaces protruding outwards in the axial direction.
Further, the center of gravity of the rigid transmission assembly as a whole coincides with the center of gravity of the drill string as a whole.
The drill rod group comprises a main drill rod and an auxiliary drill rod, the main drill rod and the auxiliary drill rod are arranged in the drill rod group, the auxiliary drill rod is arranged in the drill rod group, the drill rod group is connected with the auxiliary drill rod through a connecting shaft rod, the connecting shaft rod is arranged in the drill rod group, the drill rod group is connected with the auxiliary drill rod through the connecting shaft rod, and the connecting shaft rod is arranged in the drill rod group.
Furthermore, the split type hoop is formed by a plurality of adjacent arc bodies which are abutted against each other between the end faces in a surrounding mode, the arc bodies extend to a position between the main drill rod and the auxiliary drill rod to form a half connecting shaft rod, and the two half connecting shaft rods are attached to opposite surfaces and are fixedly connected through a fixing piece to form a connecting shaft rod.
Furthermore, the split type hoop extends to the one end of keeping away from the main drill rod at the axle center line of main drill rod and vice drill rod and is equipped with the amalgamation face, and the arc body of mutual amalgamation extends along the amalgamation face and has the connecting strip, and two adjacent connecting strips pass through fastener fixed connection.
Furthermore, a support rod is connected between the split type hoops on every two adjacent auxiliary drill rods.
Furthermore, the number of the split type cuffs is at least three, and the center of any one of the split type cuffs and the centers of any two of the rest split type cuffs which are not positioned on the same straight line with the split type cuffs are sequentially connected to form a triangular structure.
Furthermore, an inner bushing formed by circumferential butt joint is arranged between the drill rod and the split type hoop, the inner bushing is connected with the split type hoop in a circumferential rotation mode, two ends of the inner bushing respectively extend to the outer side of the end portion of the split type hoop to form an extension sleeve body which abuts against the end portion of the split type hoop and is located on the circumferential periphery of the drill rod, and the extension sleeve body is fixedly connected with the drill rod in the circumferential direction.
Further, a wear-resistant layer is arranged between the inner bushing and the split type hoop.
The utility model provides a pair of anti-sticking of stake machine bores body to death multiaxis through set up the rigid drive subassembly on the drilling rod group, realize the vice drilling rod rotation and be obstructed back, drive the axle center that vice drilling rod used the main drilling rod by the main drilling rod and do holistic circumferential direction as the center, the resistance disappears the back vice drilling rod and converts the effect of rotation into again, drive the main drilling rod promptly and carry out the conversion between rotation and the revolution according to the condition with vice drilling rod, the spoilage of the body is bored to greatly reduced multiaxis, the availability factor and the life-span of the body are bored to the improvement multiaxis. Under the normal condition, actuating mechanism drive main drill rod carries out the rotation, rigid drive subassembly makes vice drilling rod carry out the rotation with drive power transmission to vice drilling rod, and the position of the relative main drill rod of each vice drilling rod is unchangeable, it stops the rotation to receive the resistance when vice drilling rod, the soil body that can touch is harder or the soil block is great, the angle has the deviation, the condition of difficult breaing up, rigid drive subassembly is obstructed and can't normally carry out the transmission to main drill rod and vice drilling rod, rigid drive subassembly changes and only can connect main drill rod and vice drilling rod into, main drilling rod is under actuating mechanism's drive this moment, it revolves around main drill rod to drive vice drilling rod through rigid drive subassembly, the position change of the relative main drill rod of vice drilling rod, can adjust the relative position of changing vice drilling rod blade and soil block, can improve the success rate of breaing up. When the soil blocks blocking the rotation of the auxiliary drill rod blades are crushed, the auxiliary drill rod can freely rotate, the rigid transmission assembly recovers the transmission effect at the moment, the auxiliary drill rod stops revolving around the main drill rod, and the main drill rod and the auxiliary drill rod normally rotate respectively to perform stirring and crushing effects.
The utility model discloses a set up the rigid drive subassembly on the drilling rod group, reach and adjust vice drilling rod rotation-around the free switching of main drill rod revolution both, improve the multiaxis and bore the self-interacting ability of the body, reduce the card death rate of the multiaxis and bore the body, reduce the complex soil body and bore the spoilage of the body to the multiaxis, prolong the life that the multiaxis bored the body.
The utility model discloses still through setting up the pedestal, both can be used to being connected of sublrill and main drill rod, prevent breaking away from of sublrill and main drill rod, can replace the gear train to provide the holding power in order to drive sublrill around main drill rod revolution again when sublrill drill bit card dies, reduce the solitary drive pressure of stall's rigid drive subassembly, the damage rate of protection gear train in order to reduce the gear train.
The utility model discloses the even pedestal that sets up is used when vice drilling rod card is dead, is transformed into the form around main drilling rod revolution by rotation form, prevents because of the rigid drive subassembly that vice drilling rod card dead time length arouses is impaired or actuating mechanism is impaired, guarantees the normal use of this kind of multiaxis brill body.
Drawings
FIG. 1 is a schematic structural view of a triaxial drill body according to embodiment 1;
FIG. 2 is a schematic view of the rotation of the individual drill rods of the drill string of the tri-axial drill body of example 1;
FIG. 3 is a schematic view showing the revolution of a sub drill rod around a main drill rod in a drill rod group of the triaxial drill body according to example 1
FIG. 4 is a schematic structural view of a triaxial drill body according to embodiment 2;
FIG. 5 is an enlarged view of part A of FIG. 4;
FIG. 6 is a schematic view showing the construction of the drill string with the split type collar and the inner liner according to embodiment 2;
FIG. 7 is a schematic sectional view showing the structure of the sub drill rod of example 2 in which a split type collar and an inner bushing are installed.
The labels in the figure are as follows: 1-driving mechanism, 2-main drill rod, 3-auxiliary drill rod, 31-mounting snap ring, 4-planetary gear set, 41-sun gear, 42-planetary gear, 5-split type hoop, 51-main arc body, 52-auxiliary arc body, 53-connecting shaft rod, 54-fastening piece, 55-connecting strip, 6-inner bushing, 61-extension sleeve body, 7-wear-resistant layer and 8-sealing shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the anti-seize multi-shaft drill body of the pile machine of the present embodiment includes a drill rod group and a driving mechanism 1 thereof, wherein the drill rod group includes a main drill rod 2 and a plurality of sub drill rods 3 surrounding the main drill rod 2 and parallel to the main drill rod 2, when the sub drill rod 3 is one, the sub drill rod 3 is disposed at one circumferential side (not shown in the figure) of the main drill rod 2, when the sub drill rods 3 are two or more, the sub drill rods are uniformly distributed at the circumferential outer side (not shown in the figure) of the main drill rod 2 with the axis of the main drill rod 2 as the central line, of course, in order to ensure that the drill rod group formed by the main drill rod 2 and the sub drill rods 3 has sufficient stirring crushing force, it is preferable to use more than three sub drill rods 3 uniformly distributed at the circumferential outer side (shown in fig. 1) of the main drill rod 2 and the sub drill rods 3, and the stirring blades, The blades of the two auxiliary drill rods 3 which are tangent or have an allowable gap, the blades of the two auxiliary drill rods 3 with partially overlapped stirring ranges are arranged at intervals, and the blades of the two auxiliary drill rods 3 with tangent stirring ranges or gaps can be arranged in a flush mode; the driving mechanism 1 is used as a power output mechanism and is used as a power source of the whole drill rod group, and the output end of the driving mechanism is connected with the rear end of the main drill rod 2 and transmits torque force to the main drill rod 2 so as to drive the main drill rod 2 to rotate in the circumferential direction.
The drill rod group is provided with a rigid transmission assembly which takes the main drill rod 2 as a driving unit and the auxiliary drill rod 3 as a driven unit, the rigid transmission assembly comprises at least one planetary gear set 4 consisting of a group of transmission gears arranged on each drill rod, wherein the transmission gear arranged on the main drill rod 2 is a sun gear 41, and the transmission gear arranged on each auxiliary drill rod 3 is a planetary gear 42. The planet wheels 42 and the sun wheel 41 have two operation modes: when the position of the planetary gear 42 relative to the sun gear 41 is fixed, that is, the planetary gear 42 and the sun gear 41 rotate around the respective axes, the meshing teeth of the planetary gear 42 and the sun gear 41 change and rotate at the corresponding rotation speed and in the opposite rotation direction; when the position of the planetary gear 42 with respect to the sun gear 41 is not fixed, that is, the planetary gear 42 revolves around the sun gear 41, the engagement between the planetary gear 42 and the sun gear 41 is not changed, and the planetary gear 42 rotates around the sun gear 41 in the circumferential direction at the same rotational speed as the sun gear 41 around the axis of the sun gear 41.
As shown in fig. 2 and 3, since the sun gear 41 is provided on the main drill rod 2 and the planet gear 42 is provided on the auxiliary drill rod 3, when the planetary gear set 4 is operating normally, the drill rod set is rotated in the circumferential direction around its respective axial center by the main drill rod 2 in conjunction with the auxiliary drill rod 3, as shown in fig. 2. When the auxiliary drill rod 3 rotates to stir soil, when hard soil or large soil is difficult to stir and break when the auxiliary drill rod 3 rotates to stir the soil, the stirring blades of the auxiliary drill rod 3 are stopped by resistance to force the auxiliary drill rod 3 to stop rotating, and at the moment, the planet wheel 42 of the auxiliary drill rod 3 also stops rotating to cause the planet gear set 4 to be blocked to be out of work, at the moment, the drill rod group drives the auxiliary drill rod 3 to rotate in the circumferential direction by taking the axis of the main drill rod 2 as the center, namely, the auxiliary drill rod 3 revolves around the main drill rod 2, as shown in fig. 3.
Because the sub drill rod 3 is rotated by the transmission of the rigid transmission assembly, in order to improve the transmission effectiveness of the sub drill rod 3 and reduce the power loss, it is preferable that the center of gravity of the whole rigid transmission assembly coincides with the center of gravity of the whole drill rod group, and if there are two or more rigid transmission assemblies arranged at intervals up and down along the drill rod, the centers of the whole rigid transmission assemblies coincide with the center of gravity of the whole drill rod group.
As shown in fig. 1, the rigid transmission assembly of the present embodiment further includes a sealed housing 8 through which each drill pipe passes and covers the planetary gear set, and preferably, the top and/or bottom of the sealed housing 8 is/are tapered surfaces that are axially convex. The sealed housing 8 can be provided with axial positioning of the sun wheel and/or the planet wheel, and the sealed housing 8 can prevent the planet gear set 4 from being rusted by mud, so that impurities are prevented from entering a meshing area of gear transmission to influence the transmission of the gear.
Example 2
Compared with embodiment 1, the present embodiment provides an anti-seize multi-axis drill body of an optimized pile machine, which is different from embodiment 1 in that: the drill pipe joint further comprises a shaft connecting frame, the shaft connecting frame comprises split type hoops 5 which are positioned on the same horizontal plane along the peripheries of the main drill pipe 2 and the auxiliary drill pipe 3 in the drill pipe group, each drill pipe and the split type hoops 5 on the peripheries of the drill pipes are rotatably connected, and the split type hoops 5 on the main drill pipe 2 and the split type hoops 5 on the auxiliary drill pipe 3 are fixedly connected through a shaft connecting rod 53.
As shown in fig. 4 and 5, the coupling bracket of the present embodiment is used for supporting and limiting the main drill rod 2 and the sub drill rod 3, and the length of the coupling shaft 53 matches the distance between the tooth axes of the sun gear 41 and the planet gear 42 engaged with each other in the planetary gear set 4, so that the planet gear 42 and the sun gear 41 can stably rotate in an engaged manner and cannot fall off. The connecting shaft frame can also support the drill rod group to prevent the drill rod group from shaking and slipping, assist the normal operation of the rigid transmission assembly and share the supporting pressure born by the rigid transmission assembly.
As shown in fig. 6, the split type hoop 5 of the shaft connecting frame is formed by mutually abutting and enclosing a plurality of adjacent arc bodies with end faces, the arc bodies are arranged on the periphery of the drill rod, the main drill rod 2 and the auxiliary drill rod 3 are respectively matched with the arc bodies corresponding to the corresponding radiuses, the part of the arc bodies corresponding to the main drill rod 2 is a main arc body 51, the part of the arc bodies corresponding to the auxiliary drill rod 3 is an auxiliary arc body 52, the radian of the main arc body 51 is set according to the different quantity of the auxiliary drill rods 3 surrounding the main drill rod 2, all the main arc bodies 51 are sequentially abutted with the end faces to form a circular hoop surrounding the main drill rod 2 after being enclosed, the auxiliary arc bodies 52 are generally semicircles, because each auxiliary drill rod 3 is wound with one main drill rod 2, and in order to improve the installation convenience, the installation of the circular hoop can be completed by abutting and abutting the semicircular. The arc-shaped bodies extend to a position between the main drill rod 2 and the auxiliary drill rod 3 to form a semi-connecting shaft rod 53, more than two arc-shaped bodies which form the split type hoop 5 are jointed with opposite surfaces through the two semi-connecting shaft rods 53 and are fixedly connected through a fixing part to form the connecting shaft rod 53, so that the main arc-shaped body 51 and the auxiliary arc-shaped body 52 which correspond to the arc-shaped bodies are split into circles respectively, and the split type hoop 5 is installed.
In order to improve the connection firmness of the split type hoop 5, a split surface is arranged at one end, which extends to a position far away from the main drill rod 2, of the axis connecting line of the main drill rod 2 and the auxiliary drill rod 3, connecting strips 55 extend along the split surface of the mutually-spliced arc-shaped bodies, and the two adjacent connecting strips 55 are fastened and connected through a fastening piece 54, so that the installation of the split type hoop 5 is completed.
The shaft connecting frames can be arranged at intervals up and down along the drill rod group, and at least one shaft connecting frame is arranged on each of the upper side and the lower side of the rigid transmission assembly, so that the supporting effect on the drill rod group can be improved, and the transmission pressure of the rigid transmission assembly can be alleviated.
In order to increase the transmission force of the split ferrule 5, the connecting rod 53 between the two arc-shaped bodies can be made of a steel alloy with balanced rigidity and toughness. The connecting shaft rod 53 has certain toughness, can be deformed to a certain degree under stress along the horizontal direction and does not crack. Under normal conditions, the connecting shaft rod 53 keeps the relative positions of the main drill rod 2 and the auxiliary drill rod 3 fixed due to high rigidity, keeps the positioning of the planetary gear set 4 and ensures that the main drill rod 2 and the auxiliary drill rod 3 are not influenced when rotating and stirring; when any one auxiliary drill rod 3 blade is clamped, the planet wheel 42 does not rotate to cause the operation of the planet gear set 4 to be blocked, the rotation of the auxiliary drill rod 3 and the main drill rod 2 is blocked, at the moment, the main drill rod 2 is still driven by the driving mechanism 1, the connecting shaft rod 53 can deform to a certain extent due to toughness, the accumulated force provides the driving force for all the auxiliary drill rods 3 to revolve along with the main drill rod 2 during the deformation of the connecting shaft rod 53, at the moment, all the auxiliary drill rods 3 start to revolve along with the main drill rod 2, and the connecting shaft rod 53 also recovers the rigidity; when the subliters 3 revolve along with the main drill rod 2, the problem of blocking of the subliters 3 is solved, the blocked subliters 3 restore to rotate, and simultaneously, all the subliters 3 stop revolving along with the main drill rod 2 and are converted into respective rotation stirring conditions.
In order to further improve the supporting force and the stability of the split type hoop 5, a supporting rod with a reinforcing effect is connected between the split type hoops 5 sleeved on every two adjacent auxiliary drill rods 3.
As shown in fig. 4 and 5, one main drill rod 2 is preferably matched with three or more auxiliary drill rods 3 to form a drill rod group, the three or more auxiliary drill rods 3 surround the main drill rod 2 and have stronger stirring crushing strength, so that the number of the split collars 5 is at least three, and the center of any one of the split collars 5 and the centers of any two of the rest split collars 5 which are not positioned on the same straight line with the split collars 5 are sequentially connected to form a triangular structure.
As shown in fig. 7, an inner bushing 6 formed by circumferential butt joint is arranged between the main drill rod 2 and the sub drill rod 3 and the split type hoop 5 respectively, the inner bushing 6 outside the main drill rod 2 corresponds to the outer diameter of the main drill rod 2, the inner bushing 6 outside the sub drill rod 3 corresponds to the outer diameter of the sub drill rod 3, the inner bushing 6 and the split type hoop 5 are in clearance fit and are connected in a circumferential rotation manner, two ends of the inner bushing 6 in the length direction of the drill rod extend to the outer side of the end part of the split type hoop 5 in the length direction of the drill rod respectively, so that an extension sleeve body 61 which abuts against the end part of the split type hoop 5 and is located on the circumferential periphery of the drill rod is formed, and the extension sleeve body.
When the drill rod assembling clamp is used specifically, as shown in fig. 7, the part of the drill rod where the split type hoop 5 is installed is provided with the installation clamp ring 31 protruding out of the surface of the drill rod, one group of two installation clamp rings 31 is arranged on the upper side and the lower side of the split type hoop 5, the installation clamp ring 31 is fixedly connected with the drill rod, the inner bushing 6 is attached to the surface of the drill rod installed between the two installation clamp rings 31, the upper end and the lower end of the inner bushing 6 are respectively extended with the extension sleeve body 61, and the extension sleeve body 61 is connected with the installation clamp ring 31 in a clamping manner, so that the; the outer side of the inner bushing 6 is surrounded by an arc-shaped body of the split type hoop 5, the split type hoop 5 and the inner bushing 6 are connected in a clearance fit manner through fastening and mounting the split type hoop 5, and therefore the inner bushing 6 is connected with the split type hoop 5 in a circumferential rotating manner.
As shown in fig. 6 and 7, in order to reduce the frictional wear between the inner liner 6 and the split type ferrule 5, a wear-resistant layer 7 may be provided in a circumferential rotation region between the inner liner 6 and the split type ferrule 5, and a highly wear-resistant nylon sleeve or the like may be provided outside the inner liner 6, inside the split type ferrule 5, or interposed between the inner liner 6 and the split type ferrule 5, and fixed by the installation of the split type ferrule 5. Because of the indispensable of rotational friction, also very big to the loss of wearing layer 7, wearing layer 7 very easily wears out, needs often to change wearing layer 7 to reduce the damage to inner liner 6 or split type cuff 5, if wearing layer 7 and inner liner 6 or split type cuff 5 for the separation setting then easily wearing layer 7's replacement, also be convenient for regular maintenance and repair.
As shown in fig. 4, the rigid transmission assembly of the present embodiment further includes a sealed housing 8 through which each drill pipe passes and covers the planetary gear set, and preferably, the top and/or bottom of the sealed housing 8 is/are tapered surfaces that are axially convex. The sealed housing 8 can be provided with axial positioning of the sun wheel and/or the planet wheel, and the sealed housing 8 can prevent the planet gear set 4 from being rusted by mud, so that impurities are prevented from entering a meshing area of gear transmission to influence the transmission of the gear.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and all embodiments may be combined with each other, or some embodiments may be combined with existing conventional techniques to form other embodiments as will be apparent to those skilled in the art without inventive faculty.
Claims (11)
1. An anti-blocking multi-shaft drill body of a pile machine is characterized by comprising a drill rod group and a driving mechanism thereof,
the drill rod group comprises a main drill rod and an auxiliary drill rod which surrounds the main drill rod and is parallel to the main drill rod;
the driving mechanism is used as a power output mechanism, and the output end of the driving mechanism transmits torque to the main drill rod so as to drive the main drill rod to rotate circumferentially;
the drill rod group is provided with a rigid transmission assembly which takes the main drill rod as an active unit and the auxiliary drill rod as a passive unit, when the rigid transmission assembly works normally, the drill rod group is in circumferential rotation by the main drill rod in a linkage mode with the auxiliary drill rod taking the respective axis as the center, and when the rigid transmission assembly is blocked to be out of work, the drill rod group is in circumferential rotation by the main drill rod driving the auxiliary drill rod to take the axis of the main drill rod as the center.
2. The anti-jamming multi-shaft drill body of the pile machine according to claim 1, characterized in that: the rigid transmission assembly comprises a planetary gear set consisting of at least one group of transmission gears arranged on each drill rod, wherein the transmission gear arranged on the main drill rod is a sun gear, and the transmission gear arranged on each auxiliary drill rod is a planet gear;
a sealed housing is also included through which each drill pipe extends and covers the planetary gear set.
3. The anti-jamming multi-shaft drill body of the pile machine according to claim 2, characterized in that: the top and/or the bottom of the sealing shell is/are provided with an axially convex conical surface.
4. The anti-seize multi-axial drill body of a pile machine according to claim 1 or 2, characterized in that: the center of gravity of the rigid transmission assembly is coincident with the center of gravity of the drill rod assembly.
5. The anti-jamming multi-shaft drill body of the pile machine according to claim 1, characterized in that: the drill rod assembly further comprises a shaft connecting frame, the shaft connecting frame comprises split type hoops which are positioned on the same horizontal plane along the peripheries of the main drill rod and the auxiliary drill rod in the drill rod group, each drill rod and the split type hoop on the periphery of each drill rod are rotatably connected, and the split type hoops on the main drill rod and the split type hoops on the auxiliary drill rod are fixedly connected through a shaft connecting rod.
6. The anti-jamming multi-shaft drill body of the pile machine according to claim 5, characterized in that: the split type hoop is formed by a plurality of adjacent arc bodies which are abutted against each other between end faces in a surrounding mode, the arc bodies extend to a position between the main drill rod and the auxiliary drill rod to form a half-connecting shaft rod, and the two half-connecting shaft rods are attached to opposite surfaces and are fixedly connected through the fixing piece to form a connecting shaft rod.
7. The anti-jamming multi-shaft drill body of the pile machine according to claim 5, characterized in that: the spliced hoop is provided with a spliced surface at one end of the axis connecting line of the main drill rod and the auxiliary drill rod, which extends to the end far away from the main drill rod, the arc bodies spliced with each other extend with connecting strips along the spliced surface, and the two adjacent connecting strips are fixedly connected through a fastener.
8. The anti-jamming multi-shaft drill body of the pile machine according to claim 5, characterized in that: and a support rod is connected between the split type hoops on every two adjacent auxiliary drill rods.
9. The anti-jamming multi-shaft drill body of the pile machine according to claim 5, characterized in that: the number of the split type cuffs is at least three, and the center of any one of the split type cuffs and the centers of any two of the rest split type cuffs which are not positioned on the same straight line with the split type cuffs are sequentially connected to form a triangular structure.
10. The anti-jamming multi-shaft drill body of the pile machine according to claim 5, characterized in that: an inner bushing formed by circumferential butt joint is arranged between the drill rod and the split type hoop, the inner bushing is connected with the split type hoop in a circumferential rotation mode, two ends of the inner bushing extend to the outer side of the end portion of the split type hoop respectively to form an extension sleeve body which abuts against the end portion of the split type hoop and is located on the circumferential periphery of the drill rod, and the extension sleeve body is fixedly connected with the drill rod in the circumferential direction.
11. The anti-seize multi-axial drill body of a pile machine according to claim 10, characterized in that: and a wear-resistant layer is arranged between the inner bushing and the split type hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921968853.9U CN211549569U (en) | 2019-11-14 | 2019-11-14 | Anti-blocking multi-shaft drill body of pile machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921968853.9U CN211549569U (en) | 2019-11-14 | 2019-11-14 | Anti-blocking multi-shaft drill body of pile machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137190A (en) * | 2021-05-13 | 2021-07-20 | 中信国安建工集团有限公司 | Rotary drilling rig drill rod component and rotary drilling rig |
| CN115110894A (en) * | 2022-08-30 | 2022-09-27 | 山东天拓建设有限公司 | Building construction foundation pile drilling equipment |
-
2019
- 2019-11-14 CN CN201921968853.9U patent/CN211549569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137190A (en) * | 2021-05-13 | 2021-07-20 | 中信国安建工集团有限公司 | Rotary drilling rig drill rod component and rotary drilling rig |
| CN115110894A (en) * | 2022-08-30 | 2022-09-27 | 山东天拓建设有限公司 | Building construction foundation pile drilling equipment |
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