Rotating disc type rotating mechanism of rotary drilling rig

Abstract

The utility model relates to the technical field of rotary drilling rig accessories, in particular to a rotary drilling rig rotating disc type rotating mechanism which comprises a power head, a drill rod and a drill bit, the drill rod is connected to the driving end of the power head in a sliding and penetrating mode, the bottom end of the drill rod is fixedly connected with an upper rotating disc, and the upper end of the drill bit is fixedly connected with a lower rotating disc. Two limiting seats are symmetrically arranged outside the upper rotating disc, two protruding blocks are symmetrically and fixedly connected to the inner sides of the limiting seats, two grooves are symmetrically formed in the side face of the upper rotating disc and the side face of the lower rotating disc, the protruding blocks are matched with the grooves, a T-shaped seat is arranged above the position between the two limiting seats, and a guide column is fixedly connected to the middle of the bottom of the T-shaped seat. According to the rotating mechanism, the drill bit is easier to disassemble and assemble, the drill bit can be conveniently and rapidly disassembled and assembled so that the drill bit of the corresponding model can be replaced, and the convenience of the replacement work of the drill bit in the rotating mechanism can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling rig accessories, in particular to a rotary table rotating mechanism for a rotary drilling rig. Background Art

[0002] A rotary drilling rig is a drilling rig that uses a rotary bucket, a short spiral drill bit or other action device to perform dry or wet drilling, and uses rotary excavation to take soil in succession and repeatedly cycle to form holes as its basic function. A rotary drilling rig can be used for a variety of bottom layers, has the characteristics of fast hole forming speed, less pollution, and strong maneuverability. It is mainly suitable for the construction of soil layers such as sandy soil, clay soil, and silty soil, and is widely used in the construction of various foundations such as cast-in-place piles, continuous walls, and foundation reinforcement. In order to meet actual operational needs, a rotary drilling rig needs to be constructed with drill bits of different types. However, during the use of the rotating mechanism of the existing rotary drilling rig, if a drill bit of a different type is replaced, it is necessary to use tools to twist several bolts and nut fasteners for disassembly and assembly, and the disassembly and assembly operation of the drill bit is relatively cumbersome, which causes inconvenience to the replacement of the drill bit in the rotating mechanism. Therefore, we propose a turntable rotating mechanism for a rotary drilling rig to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a turntable rotating mechanism for a rotary drilling rig to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The cam is provided with two stoppers at the bottom ends of the two guide rails, and the stoppers are connected to the bottom ends of the two guide rails respectively.

[0006] Preferably, a mounting bracket is fixedly connected to the outside of the power head, and a mounting hole is provided on the side of the mounting bracket.

[0007] Preferably, the upper end of the drill rod is rotatably connected to a connecting seat via a rotating shaft, and a lifting connecting hole is provided on the side of the connecting seat.

[0008] Preferably, the cross-sectional shape of the guide column is circular, and the spring is movably sleeved on the outer side of the guide column.

[0009] Preferably, the cross-sectional shape of the limit seat is arc-shaped, and the inner side surface of the limit seat contacts the side surface of the upper turntable.

[0010] Preferably, the upper end surface of the limit seat is flush with the upper end surface of the upper turntable, and the bottom end surface of the limit seat is flush with the bottom end surface of the lower turntable.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model pushes the stopper and the T-shaped seat upward, and the spring contracts, so that the two protrusions on the inner side of the limit seat are respectively matched and inserted into the grooves on the sides of the upper turntable and the lower turntable, and the spring drives the T-shaped seat to descend and reset, and the two assembly blocks at the bottom of the T-shaped seat are respectively matched and inserted into the assembly grooves on the surfaces of the two limit seats, and the two limit seats can be locked synchronously, so that the upper turntable and the lower turntable are positioned and fastened. According to actual operation requirements, when replacing drill bits of different types, there is no need to use tools to twist several bolts and nut fasteners for disassembly and assembly, which makes the disassembly and assembly operation of the drill bit simpler, and is convenient for quickly disassembling and assembling the drill bit to replace the drill bit of the corresponding type, which is beneficial to improving the convenience of replacing the drill bit in the rotating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of a turntable rotating mechanism of a rotary drilling rig of the utility model;

[0014] Figure 2 This is a first partial cross-sectional structural schematic diagram of a turntable rotating mechanism of a rotary drilling rig of the utility model;

[0015] Figure 3 It is a front view structural schematic diagram of a turntable rotating mechanism of a rotary drilling rig of the utility model;

[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0017] Figure 5 This is a second partial cross-sectional structural schematic diagram of a turntable rotating mechanism of a rotary drilling rig according to the utility model.

[0018] In the figure: 1, power head; 101, mounting frame; 102, mounting hole; 2, drill rod; 201, rotating shaft; 202, connecting seat; 203, lifting connecting hole; 3, drill bit; 4, upper turntable; 5, lower turntable; 6, limit seat; 601, protrusion; 602, assembly groove; 7, T-shaped seat; 701, guide column; 702, stop block; 703, spring; 704, assembly block; 8, side block; 9, groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 5 As shown, a technical solution provided by the utility model:

[0021] A rotary table rotating mechanism of a rotary drilling rig comprises a power head 1, a drill rod 2 and a drill bit 3, wherein the drill rod 2 is slidably connected to the driving end of the power head 1, the bottom end of the drill rod 2 is fixedly connected to an upper rotary table 4, the upper end of the drill bit 3 is fixedly connected to a lower rotary table 5, two limit seats 6 are symmetrically arranged on the outside of the upper rotary table 4, two protrusions 601 are symmetrically fixedly connected to the inner side of the limit seat 6, two grooves 9 are symmetrically arranged on the sides of the upper rotary table 4 and the lower rotary table 5, the protrusions 601 are adapted to the grooves 9, so that the two protrusions 601 on the inner side of the limit seat 6 can be respectively correspondingly plugged into the grooves 9 on the sides of the upper rotary table 4 and the lower rotary table 5, a T-shaped seat 7 is arranged above the two limit seats 6, and the middle of the bottom of the T-shaped seat 7 A guide column 701 is fixedly connected, and a side block 8 is fixedly connected to the side of the upper turntable 4. The side block 8 is slidably sleeved on the outside of the guide column 701. A stop block 702 is fixedly connected to the bottom end of the guide column 701. A spring 703 is fixedly connected between the stop block 702 and the side block 8. Assembly blocks 704 are provided at both ends of the bottom of the T-shaped seat 7. An assembly groove 602 is provided on the surface of the limit seat 6. The assembly block 704 is inserted into the assembly groove 602 to synchronously lock the two limit seats 6, so that the upper turntable 4 and the lower turntable 5 are positioned and fastened. The spring 703 adopts a spring with a suitable elastic stiffness coefficient, so that the spring 703 has a certain stiffness and damping performance, thereby ensuring the installation stability of the drill bit 3.

[0022] As a preferred implementation in this embodiment, Figure 1 As shown, a mounting frame 101 is fixedly connected to the outside of the power head 1, and a mounting hole 102 is provided on the side of the mounting frame 101, so that the power head 1 can be installed on the rotary drilling rig.

[0023] As a preferred implementation in this embodiment, Figure 1 As shown, the upper end of the drill rod 2 is rotatably connected to a connecting seat 202 via a rotating shaft 201, and a lifting connecting hole 203 is provided on the side of the connecting seat 202, so that the connecting seat 202 can be attached to the lifting rope of the winch.

[0024] As a preferred implementation in this embodiment, Figure 4 As shown, the cross-section of the guide post 701 is circular, and the spring 703 is movably sleeved on the outer side of the guide post 701 .

[0025] As a preferred implementation in this embodiment, Figure 1 and Figure 5 As shown, the cross-section of the limit seat 6 is arc-shaped, and the inner side surface of the limit seat 6 contacts the side surface of the upper turntable 4. The upper end surface of the limit seat 6 is flush with the upper end surface of the upper turntable 4, and the bottom end surface of the limit seat 6 is flush with the bottom end surface of the lower turntable 5, ensuring the overall appearance of the limit seat 6, the upper turntable 4 and the lower turntable 5.

[0026] Working principle:

[0027] The two assembling blocks 704 at the bottom of the T-shaped seat 7 are respectively and correspondingly inserted into the assembly grooves 602 on the surfaces of the two limit seats 6, which can synchronously lock the two limit seats 6, so that the upper turntable 4 and the lower turntable 5 are positioned and tightened, and the installation operation of the drill bit 3 can be completed.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A rotary table rotating mechanism of a rotary drilling rig, comprising a power head (1), a drill rod (2) and a drill bit (3), wherein the drill rod (2) slides through a driving end portion connected to the power head (1), and is characterized in that: The bottom end of the drill rod (2) is fixedly connected to an upper turntable (4), the upper end of the drill bit (3) is fixedly connected to a lower turntable (5), two limit seats (6) are symmetrically arranged on the outside of the upper turntable (4), two protrusions (601) are symmetrically fixedly connected to the inside of the limit seats (6), two grooves (9) are symmetrically provided on the side surfaces of the upper turntable (4) and the lower turntable (5), the protrusions (601) are matched with the grooves (9), a T-shaped seat (7) is arranged above the two limit seats (6), and the bottom middle of the T-shaped seat (7) is fixedly provided. A guide column (701) is connected, a side block (8) is fixedly connected to the side of the upper turntable (4), the side block (8) is slidably sleeved on the outside of the guide column (701), a stop block (702) is fixedly connected to the bottom end of the guide column (701), a spring (703) is fixedly connected between the stop block (702) and the side block (8), both ends of the bottom of the T-shaped seat (7) are provided with assembly blocks (704), the surface of the limit seat (6) is provided with an assembly groove (602), and the assembly block (704) is plugged into the assembly groove (602).

2. The rotary table rotating mechanism of a rotary drilling rig according to claim 1, characterized in that: A mounting frame (101) is fixedly connected to the outside of the power head (1), and a mounting hole (102) is provided on the side of the mounting frame (101).

3. The rotary table rotating mechanism of a rotary drilling rig according to claim 1, characterized in that: The upper end of the drill rod (2) is rotatably connected to a connecting seat (202) via a rotating shaft (201), and a lifting connecting hole (203) is provided on the side of the connecting seat (202).

4. The rotary table rotating mechanism of a rotary drilling rig according to claim 1, characterized in that: The cross-sectional shape of the guide column (701) is circular, and the spring (703) is movably sleeved on the outside of the guide column (701).

5. The rotary table rotating mechanism of a rotary drilling rig according to claim 1, characterized in that: The cross-sectional shape of the limiting seat (6) is arc-shaped, and the inner side surface of the limiting seat (6) contacts the side surface of the upper rotating disk (4).

6. The rotary table rotating mechanism of a rotary drilling rig according to claim 1, characterized in that: The upper end surface of the limit seat (6) is flush with the upper end surface of the upper turntable (4), and the bottom end surface of the limit seat (6) is flush with the bottom end surface of the lower turntable (5).

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