CN217538569U

CN217538569U - Rotary drilling rig

Info

Publication number: CN217538569U
Application number: CN202121408724.1U
Authority: CN
Inventors: 杨龙君; 黎伟福; 张方红; 赵健; 陈龙
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shanghai Zoomlion Piling Machinery Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shanghai Zoomlion Piling Machinery Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-10-04
Anticipated expiration: 2031-06-23

Abstract

A rotary drilling rig comprises a lifting anchor frame and a mast, wherein the lifting anchor frame is connected to the end portion of the mast, and the lifting anchor frame can rotate on the mast to adjust the position. The utility model discloses a dig the rig soon and solved the super high problem of rig transportation soon.

Description

Rotary drilling rig

Technical Field

The utility model relates to a pile foundation construction equipment technical field, in particular to dig rig soon.

Background

At present, most of low-clearance rotary drilling rigs in the market are developed by taking standard rotary drilling rigs as platforms, and the low-clearance rotary drilling rigs mainly meet the requirement of low-clearance construction by reducing the height of masts. Except that the working devices (a mast, a pressurizing oil cylinder, a drill rod, a power head and a suspension anchor frame (a goose head)) of the whole machine are changed, the main body structures of the whole machine are consistent with those of a standard rotary drilling rig.

However, the rotary drilling rig needs to meet the construction requirement in a low clearance state, the height of the whole machine is limited, and therefore the mast needs to be designed to be short. During transportation, the mast cannot be leveled because the anchor hanging frame (goose head) cannot avoid the rotating platform part of the main machine when put down after the mast is completely inverted; in addition, the pulley at the upper end of the anchor lifting frame (goose head) is ultrahigh after the mast of the whole machine is inverted, and the anchor lifting frame (goose head) can not be overturned backwards along the mast like a traditional rotary drilling rig so as to avoid the ultrahigh. Therefore, when the low-clearance rotary drilling rig is transported, the anchor hanger (goose head) must be detached so as to flatten the mast and reduce the transport height. Therefore, the complexity of transition is increased, the hoisting cost of a crane is spent, and the use cost of the whole machine is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a dig the rig soon has solved and has dug the super high problem of rig transportation soon.

A rotary drilling rig comprises a lifting anchor frame and a mast, wherein the lifting anchor frame is connected to the end portion of the mast, and the lifting anchor frame can rotate on the mast to adjust the position.

The utility model discloses an in the embodiment, above-mentioned rotary drilling rig still includes center pin and fastener, the center pin connect in the davit frame with between the mast, the center pin passes through the fastener is fixed in the mast.

In the embodiment of the utility model, the bottom of above-mentioned anchor hanger is fixed with first flange board, the end fixing of mast has the second flange board, first flange board with the second flange board passes through the bolt and is connected with the nut cooperation, the center pin passes first flange board the second flange board passes through fastener fixed connection in the second flange board.

The utility model discloses an in the embodiment, be equipped with first mounting hole on the above-mentioned first flange board, the second flange board be equipped with second mounting hole and axle sleeve that first mounting hole corresponds, the center pin passes first mounting hole the second mounting hole and the axle sleeve and in fastener fixed connection.

In an embodiment of the present invention, a reinforcing plate is further fixed on the mast, and the reinforcing plate is disposed opposite to the second flange plate and is fixedly connected to the shaft sleeve.

The utility model discloses an in the embodiment, be fixed with the spacer pin on the above-mentioned first flange board, the second flange board is equipped with the spacing groove, the spacer pin is located the spacing inslot.

The utility model discloses an in the embodiment, above-mentioned spacing groove is the circular arc groove, the central angle of spacing groove is 270.

In an embodiment of the present invention, the above-mentioned spacer pin includes a first spacer pin and a second spacer pin, the first spacer pin and the second spacer pin are all located in the spacing groove, the first spacer pin and the line between the second spacer pins pass through the center of circle of the spacing groove.

In an embodiment of the present invention, the side wall of the mast is provided with a through hole, and the through hole is used for conveniently fastening or loosening the fastening member.

The utility model discloses an in the embodiment, be equipped with pulley and main hoist rear pulley before the main hoist on the above-mentioned messenger frame, the center of pulley before the main hoist with the center of pulley is located same water flat line behind the main hoist, the external diameter of pulley before the main hoist with the external diameter of pulley is the same behind the main hoist.

The utility model discloses a when digging the rig soon and switching to operating condition from the transport condition, the davit frame can be so that the davit frame normally works through rotating the regulation to reasonable position on the mast. When the rotary drilling rig is switched from the working state to the transportation state, the anchor lifting frame rotates on the mast to adjust the position, so that the whole anchor lifting frame is parallel to the ground, then the mast is inverted to be horizontal, and the whole height of the rotary drilling rig is the minimum at the moment, so that the transportation can be started. Therefore, when the rotary drilling rig is transported, the mast can be flattened without disassembling the anchor hanger, and the problem that the rotary drilling rig is ultrahigh in transportation is solved.

Drawings

Fig. 1 is a schematic structural view of the rotary drilling rig during transportation.

Fig. 2 is a schematic structural diagram of the rotary drilling rig during operation.

Fig. 3 is a partially enlarged schematic structural view of the rotary drilling rig shown in fig. 2.

Fig. 4 is a partial sectional structural schematic view of the rotary drilling rig shown in fig. 3.

Fig. 5 is a schematic view of a partially enlarged structure of the mast of the present invention.

Fig. 6 is a partial cross-sectional structural view of the mast shown in fig. 5.

Detailed Description

Referring to fig. 1 to 6, the rotary drilling rig includes an anchor hanger 11 and a mast 12, the anchor hanger 11 is connected to an end of the mast 12, and the anchor hanger 11 can rotate on the mast 12 to adjust the position.

As shown in fig. 2, the utility model discloses a when the rig is switched to operating condition from the transport condition soon, the anchor hanger 11 is adjusted to reasonable position through rotating on mast 12, can be so that anchor hanger 11 normally works. As shown in fig. 1, when the rotary drilling rig is switched from the working state to the transportation state, the position of the anchor hanger 11 is adjusted by rotating on the mast 12, so that the whole anchor hanger 11 is parallel to the ground, then the mast 12 is made to be horizontal, and at this time, the whole height of the rotary drilling rig is minimum, and the transportation can be started. Therefore, when the rotary drilling rig is transported, the mast 12 can be leveled without disassembling the anchor hanger 11, and the problem that the rotary drilling rig is ultrahigh in transportation is solved.

Further, the rotary drilling rig further comprises a central shaft 13 and a fastener 14, wherein the central shaft 13 is connected between the anchor hanger 11 and the mast 12, and the central shaft 13 is fixed on the mast 12 through the fastener 14. In this embodiment the frame 11 rotates about a central axis 13.

Further, the central shaft 13 is, for example, a bolt, which comprises a bolt head connected with the boom 11 and a threaded section fixed to the mast 12 by a fastener 14, wherein the fastener 14 is, for example, a nut cooperating with the bolt.

Further, a first flange plate 15 is fixed at the bottom of the anchor hanger 11, a second flange plate 16 is fixed at the end of the mast 12, the first flange plate 15 and the second flange plate 16 are connected in a matched manner through bolts and nuts, and the central shaft 13 passes through the first flange plate 15 and the second flange plate 16 and is fixedly connected to the second flange plate 16 through a fastener 14. When the position of the lifting and anchoring frame 11 needs to be adjusted by rotation, the position of the lifting and anchoring frame 11 can be adjusted by loosening the bolts and nuts for fixing the first flange plate 15 and the second flange plate 16.

Further, the central axis 13 is perpendicular to the first flange plate 15 and the second flange plate 16.

Furthermore, a first mounting hole is formed in the first flange plate 15, a second mounting hole 101 and a shaft sleeve 17 corresponding to the first mounting hole are formed in the second flange plate 16, and the central shaft 13 penetrates through the first mounting hole, the second mounting hole 101 and the shaft sleeve 17 and is fixedly connected to the fastening member 14. In this embodiment, the sleeve 17 is welded to the second flange plate 16.

Further, a reinforcing plate 18 is fixed on the mast 12, and the reinforcing plate 18 is arranged opposite to the second flange plate 16 and is fixedly connected with the shaft sleeve 17. In this embodiment, the reinforcing plate 18 is provided with a third mounting hole, the shaft sleeve 17 is located in the third mounting hole, and the reinforcing plate 18 can enable the shaft sleeve 17 to be matched with the central shaft 13 more stably.

Furthermore, a limit pin 19 is fixed on the first flange plate 15, a limit groove 102 is formed on the second flange plate 16, and the limit pin 19 is located in the limit groove 102. The limit pin 19 is matched with the limit groove 102, so that the rotation path and the angle of the anchor hanger 11 can be limited.

Further, as shown in fig. 5, the limiting groove 102 is an arc groove, and the central angle of the limiting groove 102 is 270 °.

Further, the limit pin 19 includes a first limit pin 191 and a second limit pin 192, the first limit pin 191 and the second limit pin 192 are both located in the limit groove 102, and a connection line between the first limit pin 191 and the second limit pin 192 passes through a center of the limit groove 102. In this embodiment, the ends of the first limiting pin 191 and the second limiting pin 192 are located in the limiting groove 102, and when the anchor hanger 11 rotates, the first limiting pin 191 and the second limiting pin 192 slide around the central shaft 13 in the limiting groove 102. In addition, since the stopper groove 102 is an arc groove and the central angle of the stopper groove 102 is 270 °, when the first stopper pin 191 or the second stopper pin 192 slides to one end of the stopper groove 102, the first stopper pin 191 or the second stopper pin 192 is blocked by the groove wall of the stopper groove 102, thereby restricting the first stopper pin 191 or the second stopper pin 192 from continuing to slide.

Further, since the connecting line between the first position-limiting pin 191 and the second position-limiting pin 192 passes through the center of the position-limiting groove 102, that is, the angle between the first position-limiting pin 191 and the second position-limiting pin 192 is 180 °, and meanwhile, the central angle of the position-limiting groove 102 is 270 °. Therefore, when one of the first limiting pin 191 and the second limiting pin 192 is located at one end of the limiting groove 102, the first limiting pin 191 and the second limiting pin 192 can rotate 90 ° at maximum in the limiting groove 102, so that the anchor hanger 11 can rotate 90 ° around the central shaft 13. Therefore, the arc-shaped limiting groove 102 with the central angle of 270 degrees is arranged, so that the suspension anchor frame 11 can rotate 90 degrees exactly.

Further, if the position of the anchor hanger 11 is not adjusted by rotating the anchor hanger 11, after the anchor hanger 11 is adjusted from the working state to the transportation state, the length direction of the anchor hanger 11 is vertical to the ground or inclined, and the height of the rotary drilling rig does not reach the minimum height at this time, so that the rotary drilling rig is ultrahigh during transportation, and the anchor hanger 11 must be disassembled to flatten the mast 12 to reduce the transportation height. As shown in fig. 1, if the anchor hanger 11 rotates 90 degrees, the length direction of the anchor hanger 11 is parallel to the ground, and the height of the rotary drilling rig is the lowest, so that the rotary drilling rig can be transported conveniently, and the problem that the rotary drilling rig is too high does not need to be considered.

Further, the side wall of the mast 12 is provided with through holes 103, and the through holes 103 are used for facilitating fastening or loosening of the fastening members 14 or fastening or loosening of bolts and nuts for fixing the first flange plate 15 and the second flange plate 16. In this embodiment, the mast 12 is generally a closed hollow rod surrounded by four side plates and having a second flange plate 16 fixed to an end thereof, and since the fastening member 14 for fastening the central shaft 13 and the nut for fastening the bolt are both located on the second flange plate 16 and inside the mast 12, the through hole 103 needs to be formed to facilitate a constructor to loosen or fasten the fastening member 14 and the nut inside the mast 12.

Furthermore, a main hoisting front pulley 21 and a main hoisting rear pulley 22 are arranged on the anchor lifting frame 11, the center of the main hoisting front pulley 21 and the center of the main hoisting rear pulley 22 are located on the same horizontal line, and the outer diameter of the main hoisting front pulley 21 is the same as that of the main hoisting rear pulley 22. Because the center of the front main winch pulley 21 and the center of the rear main winch pulley 22 are positioned on the same horizontal line, and the outer diameter of the front main winch pulley 21 is the same as that of the rear main winch pulley 22, when the rotary drilling rig works, the front main winch pulley 21 and the rear main winch pulley 22 are at the same height, the height of the whole machine is effectively reduced, the length of the mast 12 can be lengthened to the maximum extent, and the maximum drilling depth is increased.

Further, the rotary drilling rig also comprises an upper vehicle body 23, a luffing mechanism 24 and a mast oil cylinder 25, the mast 12 is connected with the upper vehicle body 23 through the luffing mechanism 24 and the mast oil cylinder 25,

further, the mast cylinder 25 includes a first cylinder body having one end connected to the luffing mechanism 24 and a first piston rod having one end connected to the mast 12.

Further, the upper end of the mast 12 is connected to one end of a first piston rod, and the lower end of the mast 12 is connected to the luffing mechanism 24.

Further, the rotary drilling rig further comprises a follow-up frame 26, a drill rod drilling tool 27 and a power head 28, the mast 12 is further provided with a guide rail for mounting the follow-up frame 26, the follow-up frame 26 is mounted on the guide rail, the follow-up frame 26 is connected with the drill rod drilling tool 27, the drill rod drilling tool 27 penetrates through the power head 28, and the drill rod drilling tool 27 can slide on the guide rail of the mast 12 through the follow-up frame 26.

Furthermore, a pressurizing oil cylinder 29 is further fixed on the mast 12, the pressurizing oil cylinder 29 includes a second cylinder body and a second piston rod, one end of the second cylinder body is fixed on the mast 12, and one end of the second piston rod is connected with the power head 28.

Further, the rotary drilling rig needs four steps from the working state to the transportation state. In a first step, the power head 28 is placed at the lowermost end of the mast 12, the drill string tool 27, the follower frame 26, and the connecting bolts between the upper and lower sections of the mast 12 are removed. In the second step, the mast 12 is made to be horizontal by the mast retracting cylinder 25. Third, the nuts connecting the first flange plate 15 and the second flange plate 16 are loosened, the fastening pieces 14 fastening the center shaft 13 are loosened, the anchor hanger 11 is rotated by 90 ° with respect to the mast 12 through the center shaft 13, the nuts connecting the first flange plate 15 and the second flange plate 16 are tightened, and the fastening pieces 14 fastening the center shaft 13 are tightened. And fourthly, the amplitude is minimized through an amplitude-variable oil cylinder of the amplitude-variable mechanism 24.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, "upper," "lower," "left," and "right," and the like are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed.

Secondly, the utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses an in the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Finally, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The rotary drilling rig is characterized by comprising a lifting anchor frame (11), a mast (12), a central shaft (13) and a fastening piece (14), wherein the lifting anchor frame (11) is connected to the end part of the mast (12), the central shaft (13) is connected between the lifting anchor frame (11) and the mast (12), the central shaft (13) is fixed on the mast (12) through the fastening piece (14), and the lifting anchor frame (11) can rotate on the mast (12) through the central shaft (13) to adjust the position.

2. The rotary drilling rig according to claim 1, wherein a first flange plate (15) is fixed at the bottom of the anchor hanger (11), a second flange plate (16) is fixed at the end of the mast (12), the first flange plate (15) and the second flange plate (16) are in fit connection through bolts and nuts, and the central shaft (13) penetrates through the first flange plate (15) and the second flange plate (16) and is fixedly connected to the second flange plate (16) through the fastener (14).

3. The rotary drilling rig according to claim 2, wherein the first flange plate (15) is provided with a first mounting hole, the second flange plate (16) is provided with a second mounting hole (101) corresponding to the first mounting hole and a shaft sleeve (17), and the central shaft (13) penetrates through the first mounting hole, the second mounting hole (101) and the shaft sleeve (17) and is fixedly connected with the fastener (14).

4. The rotary drilling rig according to claim 3, wherein a reinforcing plate (18) is further fixed on the mast (12), and the reinforcing plate (18) is arranged opposite to the second flange plate (16) and is fixedly connected with the shaft sleeve (17).

5. The rotary drilling rig according to claim 2, wherein a limiting pin (19) is fixed on the first flange plate (15), a limiting groove (102) is formed in the second flange plate (16), and the limiting pin (19) is located in the limiting groove (102).

6. The rotary drilling rig according to claim 5, wherein the limiting groove (102) is a circular arc groove, and the central angle of the limiting groove (102) is 270 degrees.

7. The rotary drilling rig according to claim 6, wherein the limiting pin (19) comprises a first limiting pin (191) and a second limiting pin (192), the first limiting pin (191) and the second limiting pin (192) are both located in the limiting groove (102), and a connecting line between the first limiting pin (191) and the second limiting pin (192) passes through the center of the limiting groove (102).

8. The rotary drilling rig according to claim 1, characterized in that the side wall of the mast (12) is provided with a through hole (103), and the through hole (103) is used for facilitating fastening or loosening of the fastening piece (14).

9. The rotary drilling rig according to claim 1, wherein a main hoisting front pulley (21) and a main hoisting rear pulley (22) are arranged on the anchor hanger (11), the center of the main hoisting front pulley (21) and the center of the main hoisting rear pulley (22) are located on the same horizontal line, and the outer diameter of the main hoisting front pulley (21) is the same as that of the main hoisting rear pulley (22).