CN210509024U

CN210509024U - Low clearance rotary drilling machine

Info

Publication number: CN210509024U
Application number: CN201921128223.0U
Authority: CN
Inventors: 陈建海; 李志坚; 王磊; 胡甲磊; 滕聪
Original assignee: Xuzhou Dun'an Construction Machinery Manufacturing Co ltd
Current assignee: Shanghai Engineering Machinery Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-12
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to an engineering machine tool technique especially relates to low headroom rotary drilling machine. The drilling machine comprises a drilling machine platform, a lifting assembly, a power head assembly and a chassis, wherein the drilling machine platform is rotatably arranged on the chassis; the lifting assembly comprises a telescopic piece, at least a first-stage lifting piece and a second-stage lifting piece, the telescopic piece is movably arranged on the drilling machine platform and connected with the first-stage lifting piece, and the telescopic piece drives the first-stage lifting piece to swing in a plane vertical to the drilling machine platform; the second level lifting piece is movably mounted on the first level lifting piece, the power head assembly is movably mounted on the second level lifting piece, the second level lifting piece can slide relative to the first level lifting piece, and the power head assembly can slide relative to the second level lifting piece. The utility model has the advantages that: the lifting height of the low-clearance rotary drilling machine is improved by arranging the multi-stage lifting pieces.

Description

Low clearance rotary drilling machine

Technical Field

The utility model relates to an engineering machine tool technique especially relates to low headroom rotary drilling machine.

Background

With the continuous acceleration of the infrastructure of China, the construction condition under the complex geological environment is more and more, and in narrow construction spaces such as tunnels, the traditional rotary drilling rig and the full-slewing drilling rig are limited by space, so that the problems of difficult movement, slow positioning and inconvenient soil taking of the drilling rig exist, the verticality of a formed pile is difficult to guarantee, and the engineering quality is influenced, therefore, in the space with narrow space, a low-clearance slewing drilling machine is required to be used for construction.

In the existing low-clearance rotary drilling machine, because the low-clearance rotary drilling machine is low in height, the adjusting range of the lifting assembly is limited in limited space height, and the lifting height is often insufficient.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a low headroom rotary drilling machine that accommodation is big, can improve the lifting height.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a low clearance rotary drill comprises a drill platform, a lifting assembly and a power head assembly, wherein the lifting assembly is connected with the drill platform, the power head assembly is mounted on the lifting assembly, the rotary drill further comprises a chassis, and the drill platform is rotatably mounted on the chassis; the lifting assembly comprises a telescopic piece, at least a first-stage lifting piece and a second-stage lifting piece, the telescopic piece is movably arranged on the drilling machine platform and connected with the first-stage lifting piece, the first-stage lifting piece is movably arranged on the drilling machine platform and is vertical to the drilling machine platform, and the telescopic piece drives the first-stage lifting piece to swing in a plane vertical to the drilling machine platform; the second level lifting piece is movably mounted on the first level lifting piece, the power head assembly is movably mounted on the second level lifting piece, the second level lifting piece can slide relative to the first level lifting piece, and the power head assembly can slide relative to the second level lifting piece.

It can be understood that the lifting component adopts multistage lift low headroom rotary drill itself highly limited's the condition, improves low headroom rotary drill's promotion height, low headroom rotary drill can be according to the high condition in different places, adjusts second level elevating part height adapts to the space operating mode in different places.

In one embodiment, a first rotary unit is arranged in the drilling machine platform, the first rotary unit is arranged between the chassis and the drilling machine platform, and the first rotary unit controls the drilling machine platform to rotate relative to the chassis to drive the power head and the lifting assembly to rotate.

It can be understood that the rig platform passes through first rotary unit can carry out the all around rotation, increases low headroom rotary drill's maneuverability conveniently aims at the stake core accurately in narrow and small space, and can change the direction of construction, realizes low headroom rotary drill reaches the stake core the jib loading boom lifts by crane the rotatory purpose of heavy object.

In one embodiment, a first oil cylinder and a slide rail are arranged in the first-stage lifting piece, the second-stage lifting piece is inserted into the first-stage lifting piece and connected with the first oil cylinder, and the second-stage lifting piece slides along the slide rail under the action of the first oil cylinder.

It can be understood that the second-stage lifting piece slides along the first-stage lifting piece, the maximum lifting height of the power head is changed, the power head can slide on the second-stage lifting piece in a full stroke, the height space is fully utilized, the number of the drilling tools to be replaced is reduced, and the construction efficiency is improved.

In one embodiment, the second-stage lifting member is provided with at least one second oil cylinder, and the power head assembly is connected with the second oil cylinder and slides relative to the second-stage lifting member under the action of the second oil cylinder.

It will be appreciated that the second ram provides the motive force for sliding movement of the head assembly on the second stage lift.

In one embodiment, the number of the second oil cylinders is multiple, and the second oil cylinders are installed in the second-stage lifting piece and are connected end to end.

It can be understood that the number of the second oil cylinders is multiple, enough power is provided for the power head assembly to realize omnibearing sliding on the second-stage lifting piece, the power head can slide in the second-stage lifting piece in a full stroke, and the height space is fully utilized.

In one embodiment, two sides of the chassis are provided with a crawler belt and a gear set, and the crawler belt is movably connected with the chassis through the gear set.

It can be understood that the track realizes the walking function of the low-clearance rotary drilling machine, and the piles are more flexible and convenient.

In one embodiment, the low clearance rotary drilling machine further comprises a cargo boom, a pulley block and a steel wire rope, wherein the cargo boom and the steel wire rope are movably connected with the drilling machine platform through the pulley block respectively, and one end of the cargo boom connected with the steel wire rope is installed on the second-stage lifting piece.

It can be understood that the lifting assembly is supported by the crane boom, the steel wire rope is tightened or loosened by the pulley block, and the drilling rig platform is rotated to a pile core position to complete the functions of disassembling and hoisting the drilling tool.

In one embodiment, the base plate is provided with a plurality of supporting legs, the supporting legs are locked on two sides of the base plate along the circumferential direction of the base plate through locking pieces, and the supporting legs are used for leveling the base plate.

It will be appreciated that the legs adjust the chassis to remain horizontal and stabilize the low clearance rotary drill to maintain the drill in a vertical position during construction.

In one embodiment, the lifting assembly further comprises a first adapter and a second adapter, wherein one end, far away from the chassis, of the first-stage lifting piece is movably connected with the telescopic piece through the first adapter, and one end, close to the chassis, of the first-stage lifting piece is movably connected with the drilling machine platform through the second adapter.

It can be understood that first order lift spare with the extensible member reaches the change quick-witted platform passes through first adaptor and second adaptor swing joint, in addition the elasticity of extensible member makes lifting unit can carry out luffing motion to carry out horizontal direction propelling movement and vertical direction lift with the drilling tool, and when the transportation, through the extensible member will lifting unit puts down, convenient transportation.

In one embodiment, the power head assembly comprises a power head, a pipeline and a drilling tool, wherein the pipeline is installed on the power head, and the drilling tool is connected with the pipeline.

It will be appreciated that different construction requirements can be met by replacing different drilling tools, such as a reverse circulation drill, a down-the-hole hammer drill, a helical blade drill, a steel casing pipe and the like, through the transition disc, and when the low clearance rotary drilling machine is constructed, water, sludge or drilling slag during construction is discharged through the pipeline or is poured through the pipeline.

Compared with the prior art, the utility model provides a pair of low headroom rotary drill, including chassis, extensible member, at least first order lifting member and second level lifting member, the rig platform is installed with rotating on the chassis, the extensible member is used for driving first order lifting member is at the perpendicular to low headroom rotary drill's swing in the face, second level lifting member movable mounting in on the first order lifting member, power head subassembly movable mounting in on the second level lifting member, second level lifting member for first order lifting member ability slip operation, the power head subassembly can the slip operation for second level lifting member to, enlarge the control range of promotion, improve and promote the height.

Drawings

Fig. 1 is a schematic structural diagram of a low-clearance rotary drilling machine provided by the present invention;

FIG. 2 is a schematic view of the low clearance rotary drilling machine provided by the present invention with a drilling tool installed thereon;

fig. 3 is a structural bottom view of the low-clearance rotary drilling machine provided by the present invention;

fig. 4 is a structural plan view of the low-clearance rotary drilling machine provided by the present invention;

fig. 5 is the structure schematic diagram of the low clearance rotary drilling machine when being laid down for transportation.

The symbols in the drawings represent the following meanings:

100. a low-clearance rotary drilling machine; 10. a chassis; 11. a crawler belt; 12. a gear set; 12a, a driving wheel; 12b, a driven wheel; 12c, a thrust wheel; 14. a support leg; 20. a rig floor; 21. a first swing unit; 22. a third adaptor; 30. a lifting assembly; 31. a telescoping member; 32. a first stage lifting member; 32a, auxiliary legs; 33. a second stage lift member; 33a, a second oil cylinder; 34. a first transfer member; 35. a second adaptor; 40. a power head assembly; 41. a power head; 42. drilling tools; 43. a pipeline; 44. a dial-over plate; 50. a cargo boom; 60. a pulley block; 70. a wire rope; 80. and a power control unit.

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.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, the utility model provides a pair of low headroom rotary drill 100 is applied to in the complicated geological environment, for example is applied to in the narrow tunnel hard rock layer and punches or the soil cutting, of course, in other embodiments, low headroom rotary drill 100 can also be applied to transmission line iron tower bored concrete pile foundation construction etc..

Specifically, the low clearance rotary drill 100 includes a chassis 10, a drill platform 20, a lift assembly 30, and a power head assembly 40, the drill platform 20 being rotatably mounted on the chassis 10, the lift assembly 30 being connected to the drill platform 20, the power head assembly 40 being mounted on the lift assembly 30.

Preferably, in this embodiment, the chassis 10 is of a walking type, the chassis 10 is provided with a crawler belt 11 and a gear set 12, and the crawler belt 11 is movably connected with the chassis 10 through the gear set.

The gear set 12 comprises a driving wheel 12a, a driven wheel 12b and a plurality of thrust wheels 12c, the driving wheel 12a, the driven wheel 12b and the thrust wheels 12c are installed in the crawler belt 11 and are respectively meshed with the crawler belt 11, the driving wheel 12a drives the driven wheel 12b to move under the transmission action of the crawler belt 11, and the thrust wheels 12c support the chassis 10 and roll under the driving of the driving wheel 12a, so that the traveling function of the chassis 10 is realized, and the pile aligning work, convenience and rapidness of the low-clearance rotary drilling machine 100 are facilitated.

Further, the chassis 10 is provided with a plurality of legs 14, the plurality of legs 14 are arranged along the circumference of the chassis 10, and the plurality of legs 14 are mounted on both sides of the chassis 10 by locking members (not shown) for leveling the chassis 10 to ensure the balance of the chassis 10, especially the stability of the low clearance rotary drilling machine 100 when the power head assembly 40 is pulled out.

Preferably, in this embodiment, the locking members are screws, and the legs 14 are arranged in four, two sets are distributed on two sides of the base plate 10, however, in other embodiments, other locking members can be used to fix the legs 14, and the legs 14 can be arranged in two, six, or other even numbers, and the like, and are uniformly distributed on two sides of the base plate 10.

With continued reference to fig. 1 to 5, the drilling machine platform 20 includes a first rotation unit 21, one end of the first rotation unit 21 is connected to the chassis 10, and the other end is connected to the drilling machine platform 20, and the drilling machine platform 20 can complete 360 ° all-directional rotation around the axial direction of the low clearance rotary drilling machine 100 through the first rotation unit 21, and especially in a narrow construction environment, the drilling machine platform 20 can be rotated to align the pile core, which is convenient to operate.

Further, the drilling platform 20 further comprises a third adaptor 22, and the drilling platform 20 is rotatably connected with one end of the lifting assembly 30 through the third adaptor 22. In this embodiment, the third adaptor 22 is a pin, but in other embodiments, other adaptors having the same function may be used as the third adaptor 22.

The lifting assembly 30 comprises a telescopic piece 31, at least a first-stage lifting piece 32 and a second-stage lifting piece 33, one end of the telescopic piece 31 is movably connected with the drilling machine platform 20, the other end of the telescopic piece 31 is movably connected with the first-stage lifting piece 32, the first-stage lifting piece 32 is movably installed on the drilling machine platform 20 and is perpendicular to the drilling machine platform 20, and the telescopic piece 31 is used for driving the first-stage lifting piece 32 to do pitching motion in the plane perpendicular to the low clearance drilling machine 100. The second-stage lifting piece 33 is installed on the first-stage lifting piece 32 and can slide relative to the first-stage lifting piece 32 to operate, the power head assembly 40 is installed on the second-stage lifting piece 33 and can slide relative to the second-stage lifting piece 33 to operate under the action of the second-stage lifting piece 33, and the applicability of the low-clearance rotary drilling machine 100 is improved. In the present embodiment, the lift assembly 30 includes a two-stage lift, i.e., to enable different height adjustments of the powerhead assembly 40. Of course, in other embodiments, the lifting assembly 30 may include a third or more stages of lifting members, as desired.

A first oil cylinder (not shown) and a slide rail (not shown) are arranged in the first-stage lifting piece 32, the second-stage lifting piece 33 is inserted into the first-stage lifting piece 32 and connected with the first oil cylinder, and the second-stage lifting piece 33 slides along the slide rail of the first-stage lifting piece 32 under the driving of the first oil cylinder.

The lifting assembly 30 further comprises a first adapter 34 and a second adapter 35, wherein one end, far away from the drilling machine platform 20, of the first-stage lifting piece 32 is rotatably connected with the telescopic piece 31 through the first adapter 34, and one end, close to the drilling machine platform 20, of the first-stage lifting piece is rotatably connected with the drilling machine platform 20 through the second adapter 35. In this embodiment, the first adapter 34 and the second adapter 35 both use a pin, but in other embodiments, the first adapter 34 and the second adapter 35 may also use other adapters having the same function.

In this embodiment, the telescopic member 31 is a telescopic cylinder, and the telescopic member 31 is used to realize the in-plane swinging, i.e. pitching or nodding, of the lifting assembly 30 along the direction perpendicular to the low clearance drilling and rotating machine 100, so that not only the lifting height of the power head assembly 40 can be increased, but also the first-stage lifting member 32 and the second-stage lifting member 33 can be laid down, and the transportation is facilitated. Of course, in other embodiments, the telescopic member 31 may also adopt other power devices with the same function.

Preferably, the first-stage elevating member 32 is provided at both sides thereof with auxiliary legs 32a, the auxiliary legs 32a being locked to both sides of the first-stage elevating member 32 by locking members for supporting the elevating assembly 30, and the auxiliary legs 32a for keeping the elevating assembly 30 stable when the low-clearance rotary drill 100 is drawn, thereby keeping the low-clearance rotary drill 100 stable.

At least one second cylinder 33a is provided in the second stage elevating member 33, and the power head assembly 40 is connected to the second cylinder 33a and slides on the second stage elevating member 33 with respect to the second stage elevating member 33 by using power supplied from the second cylinder 33 a.

Preferably, the number of the second oil cylinders 33a is multiple, and the multiple second oil cylinders 33a are installed in the second-stage lifting member 33 and connected end to end, in this embodiment, the number of the second oil cylinders 33a is two, and the installation distance can be effectively reduced and the lifting height can be improved by adopting the multi-stage second oil cylinders 33 a. Of course, in other embodiments, a single or three or more second cylinders may be provided.

Referring to fig. 1 to 5, the power head assembly 40 includes a power head 41, a drilling tool 42 and a pipeline 43, the pipeline 43 is installed on the power head 41, the power head 41 is detachably connected to the drilling tool 42, the drilling tool 42 is connected to the pipeline 43, and the low clearance rotary drilling machine 100 drives the drilling tool 42 to operate, so as to complete various constructions.

Further, the power head assembly 40 further includes an over-dial plate 44, the over-dial plate 44 is disposed between the power head 41 and the drilling tool 42, the power head 41 replaces the drilling tool 42 through the over-dial plate 43, a gap is disposed between the drilling tool 42 and the over-dial plate 44, and the gap between the drilling tool 42 and the over-dial plate 44 forms a channel (not shown) with the pipeline 43, and during construction, the drilling slag is poured or discharged through the channel, so that pouring or soil taking one-time forming is realized.

Preferably, the power head assembly 40 further includes a second rotary unit (not shown) by which the dial 44 is connected to the power head 41 and the drill 42 is rotated by the second rotary unit to complete the cutting of soil or rock.

With continued reference to fig. 1 to 5, the low clearance rotary drilling machine 100 further includes a boom 50, a pulley block 60 and a steel cable 70, the boom 50 is connected to the drilling platform 20 through the pulley block 60 and the steel cable 70, and one end of the boom 50 is connected to the second-stage lifting member 33.

Specifically, the pulley assembly 60 includes at least two pulleys (not shown), one of which is disposed on the boom 50 and the other of which is disposed on the drilling platform 20, and the drilling platform 20 uses the wire rope 70 to loosen or tighten the boom 50, so as to implement the low clearance rotary drilling machine 100 to be constructed at different lifting heights.

Further, the low clearance rotary drilling machine 100 further comprises a power control unit 80, the power control unit 80 is mounted on the drilling machine platform 20, and the power control unit 80 provides power for the telescopic member 31, the first oil cylinder and the second oil cylinder 33a and the like and controls the tightness of the steel wire rope 70.

In the work engineering, the low clearance rotary drilling machine 100 walks by using the crawler belt 11, positions the pile core preliminarily through the rotation of the first rotary unit 21, further adjusts the positioning through the swing of the telescopic member 31, can enable the drilling tool 42 to be aligned to the pile core accurately, and is convenient to position in a narrow space. During walking, the chassis 10 is kept horizontal by adjusting the legs 14, so that the low clearance rotary drilling machine 100 is kept horizontal, and the drilling tool 42 is kept vertical during operation. The power control unit 80 controls the extensible member 31, the first cylinder and the second cylinder 33a according to the height of the working environment, thereby adjusting the height of the elevation assembly 30. According to the working environment, a proper drilling tool 42 is selected and connected with the power head 41, the second rotary unit drives the drilling tool 42 to rotate, soil or rock is cut, the cut drilling slag or soil is discharged through a pipeline 43, and after cutting and forming, the power head assembly 40 is pressed down or lifted up through the second oil cylinder 33a to continue construction. After the drilling tool 42 is completely inserted into the soil layer, the crane arm 50 lifts another drilling tool 42, and drives the crane arm 50 to rotate to the drilling position through the first rotary unit 21, and the second drilling tool 42 is driven into the soil layer, and the operations are repeated in sequence according to the above description until the designed pile hole depth is reached. The crane arm 50 lifts the drilling tool 42 in the drill hole, and the crane arm 50 is driven to rotate through the first rotary unit 21, so that the drilling tool 42 is lifted to a position far away from the drill hole, the pulling-out of the drilling tool 42 is completed, and finally the pile foundation construction is completed, and in the pulling-out process, the low clearance rotary drill 100 is supported through the auxiliary support legs 32a to keep stable.

When the low clearance rotary drilling machine 100 is transported, the telescopic part 31 is used for telescopic movement, and simultaneously the low clearance rotary drilling machine 100 rotates in the axial direction, the steel wire rope 70 is loosened, and the lifting assembly 30 and the crane arm 50 are laid down, so that the overall height and length of the low clearance rotary drilling machine 100 are reduced, and the transportation is facilitated, and please refer to fig. 5 specifically.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a low headroom rotary drill, includes rig platform, lifting unit and unit head subassembly, lifting unit with the rig platform is connected, the unit head subassembly is installed lifting unit is last, its characterized in that:

the rotary drilling rig further comprises a chassis on which the drilling rig platform is rotatably mounted;

the lifting assembly comprises a telescopic piece, at least a first-stage lifting piece and a second-stage lifting piece, the telescopic piece is movably arranged on the drilling machine platform and connected with the first-stage lifting piece, the first-stage lifting piece is movably arranged on the drilling machine platform and is vertical to the drilling machine platform, and the telescopic piece drives the first-stage lifting piece to swing in a plane vertical to the drilling machine platform;

the second level lifting piece is movably mounted on the first level lifting piece, the power head assembly is movably mounted on the second level lifting piece, the second level lifting piece can slide relative to the first level lifting piece, and the power head assembly can slide relative to the second level lifting piece.

2. The low clearance rotary drill of claim 1, wherein: the drilling machine platform is internally provided with a first rotary unit, the first rotary unit is arranged between the chassis and the drilling machine platform, and the first rotary unit controls the drilling machine platform to rotate relative to the chassis.

3. The low clearance rotary drill of claim 1, wherein: be equipped with first hydro-cylinder and slide rail in the first order lifting member, second level lifting member inserts first order lifting member inside and connect first hydro-cylinder, second level lifting member is in follow under the effect of first hydro-cylinder the slide rail slides.

4. The low clearance rotary drill of claim 1, wherein: at least one second oil cylinder is arranged in the second-stage lifting piece, and the power head assembly is connected with the second oil cylinder and slides relative to the second-stage lifting piece under the action of the second oil cylinder.

5. The low clearance rotary drill of claim 4, wherein: the quantity of second hydro-cylinder is a plurality of, and is a plurality of the second hydro-cylinder is installed in the second level lifter, and end to end.

6. The low clearance rotary drill of claim 1, wherein: and the two sides of the chassis are provided with a crawler belt and a gear set, and the crawler belt is movably connected with the chassis through the gear set.

7. The low clearance rotary drill of claim 1, wherein: the low-clearance rotary drilling machine further comprises a crane boom, a pulley block and a steel wire rope, wherein the crane boom, the steel wire rope and the steel wire rope are respectively connected with the drilling machine platform through the pulley block in a movable mode, and one end, connected with the steel wire rope, of the crane boom is installed on the second-level lifting part.

8. The low clearance rotary drill of claim 1, wherein: the chassis is provided with a plurality of supporting legs, the supporting legs are locked on two sides of the chassis along the circumferential direction of the chassis through locking pieces, and the supporting legs are used for leveling the chassis.

9. The low clearance rotary drill of claim 1, wherein: the lifting assembly further comprises a first adapter and a second adapter, the first-stage lifting piece is far away from one end of the chassis and the telescopic piece is movably connected through the first adapter, and one end of the first-stage lifting piece close to the chassis is movably connected with the drilling machine platform through the second adapter.

10. The low clearance rotary drill of claim 1, wherein: the power head assembly comprises a power head, a pipeline and a drilling tool, the pipeline is installed on the power head, and the drilling tool is connected with the pipeline.