CN113756716A

CN113756716A - A rotary drilling rig

Info

Publication number: CN113756716A
Application number: CN202111233130.6A
Authority: CN
Inventors: 何清华; 熊明强; 凡知秀; 李耀; 屈乐宏
Original assignee: Sunward Intelligent Equipment Co Ltd
Current assignee: Sunward Intelligent Equipment Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2021-12-07

Abstract

The invention discloses a rotary drilling rig, comprising: a chassis, a traveling crawler, a drill mast, a hoist, a wire rope, a drill pipe, a power head and a drill bucket. Two traveling crawler belts are respectively arranged on both sides under the chassis to ensure the stability of the chassis. The lower end of the drill mast is connected to the top of the chassis, and the upper end of the drill mast is provided with a guide pulley. The bucket is connected with the power head, and the drill mast is provided with a guide rail for the power head to slide up and down. The axes of the drill pipe and the power head pass through the center of gravity of the chassis up and down, so the stability of the rotary drilling rig can be guaranteed.

Description

Rotary drilling rig

Technical Field

The invention relates to the technical field of engineering mechanical equipment, in particular to a rotary drilling rig.

Background

The rotary drilling rig is engineering mechanical equipment commonly used for foundation construction, and is developed towards a large-scale direction along with the expansion of construction scale and the requirement of super-large and super-deep construction.

The traditional rotary drilling rig usually has a front drilling tool, the center of gravity is close to the front during working, and the unstable risk coefficient of the whole machine is large.

Therefore, how to provide a rotary drilling rig with high stability is a technical problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide a rotary drilling rig which can effectively improve the stability of the whole machine during working.

In order to solve the technical problems, the invention provides the following technical scheme:

a rotary drilling rig comprising: the drilling machine comprises a chassis, two walking crawlers, a drilling mast, a winch, a steel wire rope, a drill rod, a power head and a drilling bucket, wherein the two walking crawlers are arranged on two sides below the chassis respectively, the lower end of the drilling mast is connected above the chassis, a guide pulley is arranged at the upper end of the drilling mast, one end of the steel wire rope is connected with the winch, the other end of the steel wire rope bypasses the guide pulley to be connected with the upper end of the drill rod, the lower end of the drill rod is connected with the power head, the drilling bucket is connected with the power head, a guide rail for the power head to slide up and down is arranged on the drilling mast, and the axes of the drill rod and the power head vertically penetrate through the gravity center of the chassis.

Preferably, the chassis comprises two longitudinal beams and two cross beams, the two longitudinal beams are arranged in parallel, the two cross beams are connected between the two longitudinal beams, the two cross beams and the two longitudinal beams form a rectangular frame, and the lower end of the drill mast is connected with the two longitudinal beams.

Preferably, the cross beam is detachably connected with the longitudinal beam.

Preferably, a plurality of lifting support legs are arranged on the two longitudinal beams respectively, and the lifting support legs are used for controlling the chassis to lift.

Preferably, the lower end of the drill mast is removably connected to the chassis.

Preferably, two sides of the drill mast are respectively provided with one winch, and the two winches respectively lift the drill rod through one steel wire rope.

Preferably, the outer side of the longitudinal beam is provided with a support part extending outwards, and the support part is used for bearing the winch.

Preferably the drill mast is a double pole drill mast or a truss drill mast.

Preferably, the drilling machine further comprises a supporting telescopic device, the lower end of the drilling mast is hinged with the chassis, one end of the supporting telescopic device is hinged with the drilling mast, the other end of the supporting telescopic device is hinged with the chassis, and the supporting telescopic device is used for controlling the drilling mast to rotate to a horizontal state or a vertical state.

Preferably, a hinged support hinged with the supporting telescopic device is arranged on the chassis, and the height of the hinged support is higher than that of the drill mast in a horizontal state.

Compared with the prior art, the technical scheme has the following advantages:

1. the two walking tracks are arranged on the left side and the right side below the chassis respectively, and the axes of the drill rod and the power head penetrate through the gravity center of the chassis, so that the stability of the rotary drilling rig during operation can be guaranteed.

2. The winches are respectively arranged on the two sides of the drilling mast so as to control the lifting of the drill rod at the same time, and the lifting stability of the drill rod can be ensured.

3. The chassis is designed into a detachable transverse beam structure and a detachable longitudinal beam structure, the drilling mast is hinged to the chassis, and the supporting and telescoping device is combined, so that the rotary drilling rig can be conveniently disassembled and assembled, and further, the transportation is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a front view of a rotary drilling rig;

FIG. 2 is a side view of the rotary drilling rig;

FIG. 3 is a top view of the rotary drilling rig;

FIG. 4 is a schematic structural diagram of a rotary drilling rig with a drilling mast in a horizontal state;

FIG. 5 is a schematic view of a rotary drilling rig employing a truss drill mast;

fig. 6 is a schematic diagram of a truss drill mast.

The reference numbers are as follows:

the device comprises a walking crawler 1, a winch 2, a steel wire rope 3, a power head 4, a drilling mast 5, a rotary rope head 6, a drill rod 7, a pressurizing system 8, a drilling bucket 9, a movable soil unloading device 10, a supporting and telescoping device 11, a lifting support leg 12, a hinged support 13, a longitudinal beam 14, a cross beam 15 and a connecting pin 16.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 6, fig. 1 is a front view of a rotary drilling rig; FIG. 2 is a side view of the rotary drilling rig; FIG. 3 is a top view of the rotary drilling rig; FIG. 4 is a schematic structural diagram of a rotary drilling rig with a drilling mast in a horizontal state; FIG. 5 is a schematic view of a rotary drilling rig employing a truss drill mast; fig. 6 is a schematic diagram of a truss drill mast.

A specific embodiment of the present invention provides a rotary drilling rig, including: the chassis, walking caterpillar 1, drill mast 5, hoist 2, wire rope 3, drill rod 7, power head 4 and drill bucket 9, two walking caterpillar 1 are set on two sides of chassis, respectively, to ensure stable support of chassis, the lower end of drill mast 5 is connected above chassis, the upper end of drill mast 5 is equipped with guide pulley, hoist 2 is set on chassis, one end of wire rope 3 is connected with hoist 2, the other end is connected with upper end of drill rod 7 by bypassing guide pulley, wherein two wire ropes 3 and drill rod 7 can be connected by revolving rope head 6, the lower end of drill rod 7 is connected with power head 4, drill bucket 9 is connected with power head 4, drill mast 5 is equipped with guide rail for power head 4 to slide up and down, in addition, the drill mast 5 can be equipped with pressurizing system 8, the axial lines of drill rod 7 and power head 4 pass through the center of gravity of chassis up and down, thus can ensure the stability of whole machine when working, during specific construction, the winch 2 drives the drilling tool to cut through the drill rod 7 below the steel wire rope 3, and the power head 4 is pushed to pressurize downwards by the pressurizing system 8 when a hard rock stratum is met, so that the pressure of the drill rod 7 shaft is increased, and the cutting effect is further enhanced. When the bucket 9 is full, the drill rod 7 is lifted by the hoist 2 to lift the bucket 9 out to the surface. At the moment, the special movable soil unloading device 10 can be driven to extend out of the lower part of the drilling bucket 9, the drilling slag falls behind the movable soil unloading device 10, then the movable soil unloading device 10 is driven to move away from the lower part of the drilling bucket 9, and finally the drilling slag is removed by utilizing transfer equipment.

The chassis specifically comprises two longitudinal beams 14 and two cross beams 15, as shown in fig. 3, the two longitudinal beams 14 are arranged in parallel with each other, the two cross beams 15 are connected between the two longitudinal beams 14, the cross beams 15 and the longitudinal beams 14 are preferably detachably connected, and can be mounted through connecting pins 16, for example, the two cross beams 15 and the two longitudinal beams 14 form a rectangular frame, the lower end of the drill mast 5 is connected with the two longitudinal beams 14, as shown in fig. 3, the drill mast 5 is in a parallel state with the cross beams 15 on a top projection plane, and the axes of the drill rod 7 and the power head 4 penetrate through the center of the rectangular frame. Furthermore, the lower end of the drill mast 5 is also preferably detachably connected to the chassis, in order to facilitate the disassembly of the rotary drilling rig for transport.

Furthermore, a plurality of lifting support legs 12 are respectively arranged on the two longitudinal beams 14, the lifting support legs 12 are used for controlling the chassis to lift, for example, two lifting support legs 12 can be arranged on each longitudinal beam 14, and the lifting support legs 12 can level the chassis so as to adapt to a complex construction ground.

In order to improve the lifting stability of the drill rod 7, two winches 2 are respectively arranged on two sides of the drill mast 5, the two winches 2 respectively lift the drill rod 7 through a steel wire rope 3, and guide pulleys are respectively arranged on two sides and the top of the drill mast 5 to guide the steel wire rope 3. Wherein outwardly extending support parts may be provided on the outer side of the longitudinal beams 14, on which support parts the hoisting machine 2 is fixed.

For the structure of the drill mast 5, it may be a double vertical mast type drill mast or a truss type drill mast, wherein the double vertical mast type drill mast includes two vertical masts and a cross bar for connecting the two vertical masts, and a connecting rod in the middle of the truss type drill mast is a diagonal rod support, as shown in fig. 6, the support strength of the drill mast 5 can be improved, wherein the width of the truss type drill mast can be gradually enlarged from top to bottom, and at this time, two parallel vertical guide rails should be arranged on the truss type drill mast for the power head 4 to lift.

In order to facilitate the assembly of the rotary drilling rig, in this embodiment, the rotary drilling rig further includes a support telescoping device 11, the support telescoping device 11 is preferably an oil cylinder, the lower end of the drilling mast 5 is hinged to the chassis, one end of the support telescoping device 11 is hinged to the drilling mast 5, the other end of the support telescoping device 11 is hinged to the chassis, specifically, a hinged support 13 for being hinged to the chassis may be disposed on the chassis, and the support telescoping device 11 is used for controlling the drilling mast 5 to rotate to a horizontal state or a vertical state. After the components are assembled, the drill mast 5 can be pulled up by the support telescoping device 11 to ensure that the drill mast 5 is in a vertical state; when the drill mast is disassembled, the drill mast 5 is rotated to a horizontal state through the supporting and telescoping device 11, and then the subsequent disassembling operation is carried out. In which the height of the hinged support 13 is higher than the drill mast 5 in a horizontal position in order to facilitate the lifting of the drill mast 5, the lower section of the drill mast 5, the supporting telescope 11 and the hinged support 13 form a triangular structure, as shown in figure 4.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary drilling rig, characterized in that it comprises: a chassis, a traveling crawler (1), a drill mast (5), a hoist (2), a wire rope (3), a drill pipe (7), a power head (4) and A drill bucket (9), two of the walking crawlers (1) are respectively provided on both sides under the chassis, the lower end of the drill mast (5) is connected above the chassis, and the upper end of the drill mast (5) A guide pulley is provided, one end of the wire rope (3) is connected to the hoist (2), and the other end bypasses the guide pulley and is connected to the upper end of the drill pipe (7). The lower end is connected with the power head (4), the drill bucket (9) is connected with the power head (4), and the drill mast (5) is provided with a guide rail for the power head (4) to slide up and down , the axes of the drill rod (7) and the power head (4) pass through the center of gravity of the chassis up and down.

2. The rotary drilling rig according to claim 1, wherein the chassis comprises two longitudinal beams (14) and two transverse beams (15), the two longitudinal beams (14) are arranged parallel to each other, and the two The transverse beams (15) are arranged in parallel with each other, and the two transverse beams (15) are connected between the two longitudinal beams (14), the two transverse beams (15) and the two longitudinal beams ( 14) A rectangular frame is formed, and the lower end of the drill mast (5) is connected with the two longitudinal beams (14).

3. The rotary drilling rig according to claim 2, characterized in that, the transverse beam (15) and the longitudinal beam (14) are detachably connected.

4. The rotary drilling rig according to claim 2, wherein a plurality of lifting legs (12) are respectively provided on the two longitudinal beams (14), and the lifting legs (12) are used to control The chassis is raised and lowered.

5. The rotary drilling rig according to claim 1, wherein the lower end of the drill mast (5) is detachably connected to the chassis.

6 . The rotary drilling rig according to claim 1 , wherein one hoist ( 2 ) is provided on both sides of the drill mast ( 5 ), and the two hoists ( 2 ) pass through one The steel wire rope (3) lifts the drill pipe (7).

7. The rotary drilling rig according to claim 2, characterized in that, an outer side of the longitudinal beam (14) is provided with a support portion extending outward, and the support portion is used for carrying the hoisting machine (2).

8 . The rotary drilling rig according to claim 1 , wherein the drill mast ( 5 ) is a double vertical pole type drill mast or a truss type drill mast. 9 .

9. The rotary drilling rig according to any one of claims 1 to 8, further comprising a support telescopic device (11), the lower end of the drill mast (5) is hinged with the chassis, and the support telescopic device One end of the device (11) is hinged with the drill mast (5), and the other end is hinged with the chassis, and the support telescopic device (11) is used to control the drill mast (5) to rotate to a horizontal state or a vertical state .

10 . The rotary drilling rig according to claim 9 , wherein the chassis is provided with a hinge support ( 13 ) hingedly connected with the support telescopic device ( 11 ), and the hinge support ( 13 ) has a The height is higher than the height of the drill mast (5) when it is in a horizontal state.