CN111483934A

CN111483934A - Steel wire rope guiding device and rotary drilling rig

Info

Publication number: CN111483934A
Application number: CN202010481377.9A
Authority: CN
Inventors: 康乐; 安聪锋
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2020-05-31
Filing date: 2020-05-31
Publication date: 2020-08-04

Abstract

A steel wire rope guiding device and a rotary drilling rig relate to the technical field of rotary drilling rigs and comprise an installation base, a rotary assembly, a pulley bracket and a guide pulley; the rotary assembly comprises a connecting shaft, a first fixing disc and a second fixing disc, one end of the connecting shaft is fixedly connected with the first fixing disc, a first cavity is arranged in the other end of the connecting shaft, and a spherical connecting piece is arranged on the second fixing disc and is accommodated in the first cavity; the pulley bracket is fixedly connected with the rotary component through a first fixed disk, and the mounting base is fixedly connected with the rotary component through a second fixed disk; the guide pulley is arranged on the pulley bracket; the mounting base is used for fixedly connecting a mast of the rotary drilling rig. The steel wire rope guiding device and the rotary drilling rig can enable the guide pulley frame to swing along with the rope outlet position of the steel wire rope, and have the advantages of simple structure and low cost.

Description

Steel wire rope guiding device and rotary drilling rig

Technical Field

The invention relates to the technical field of rotary drilling rigs, in particular to a steel wire rope guiding device and a rotary drilling rig.

Background

A rotary drilling rig is a commonly used engineering machine in the field of piling machinery. At present, a plurality of rotary drilling rigs adopt a hoisting pressurization structure. Compared with an oil cylinder pressurizing structure, the pressurizing stroke of the winch pressurizing structure is larger, the pressurizing force is larger, and the continuous and stable pressurizing force can be provided, so that the hole forming efficiency of the rotary drilling rig is improved. In the prior art, due to space limitation, a winch pressurization rotary drilling rig adopts a main winch rear structure, in order to reduce the bending moment of a main winch steel wire rope to a mast, a guide pulley frame for guiding the main winch steel wire rope is arranged on the mast, the action position of working pressure on the mast is changed, and therefore the bending moment to the mast is reduced.

At present, most of pulley supports applied to guide pulleys of rotary drilling rigs are connected with a simple swing mechanism, and the pulley supports swing along with a steel wire rope, so that the purpose of reducing the rope outlet angle of the steel wire rope is achieved. However, in actual operation, the angle between the steel wire rope and the pulley cannot meet the requirement due to simple swinging. In addition, the pulley support is driven to swing along with the steel wire rope through the slewing device to reduce the rope outlet angle, but the structure is complex, and the manufacturing cost is too high.

Disclosure of Invention

The invention aims to provide a steel wire rope guiding device and a rotary drilling rig, which can enable a guide pulley frame to swing along with the rope outlet position of a steel wire rope and have the advantages of simple structure and lower cost.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiments of the present invention, a steel wire rope guiding device is provided, which includes a mounting base, a rotating assembly, a pulley bracket and a guide pulley;

the rotary assembly comprises a connecting shaft, a first fixing disc and a second fixing disc, one end of the connecting shaft is fixedly connected with the first fixing disc, a first cavity is formed in the other end of the connecting shaft, a spherical connecting piece is arranged on the second fixing disc, and the spherical connecting piece is accommodated in the first cavity;

the pulley bracket is fixedly connected with the rotary component through the first fixed disk, and the mounting base is fixedly connected with the rotary component through the second fixed disk;

the guide pulley is arranged on the pulley bracket;

the mounting base is used for fixedly connecting a mast of the rotary drilling rig.

Optionally, in a preferred embodiment of the present invention, the first cavity is a spherical cavity matching the shape of the spherical connecting member.

Optionally, in a preferred embodiment of the present invention, a buffer material is disposed in the first cavity, a groove is disposed in an end of the buffer material facing the ball-shaped connector, and a shape of the groove matches a shape of the ball-shaped connector.

Optionally, in a preferred embodiment of the present invention, the ball joint is connected to the second fixing plate through a transition piece, and the transition piece is located outside the first cavity.

Optionally, in a preferred embodiment of the present invention, the ball joint is integrally formed with the transition piece and has a second cavity formed therein.

Optionally, in a preferred embodiment of the present invention, the connecting shaft, the spherical connecting member, the first fixing disk, and the second fixing disk are concentrically disposed.

Optionally, in a preferred embodiment of the present invention, the first fixed disk and the second fixed disk are both flanges.

Optionally, in a preferred embodiment of the present invention, a first connecting plate is disposed on the pulley bracket, and the first connecting plate is opposite to and fixedly connected to the first fixed tray;

the mounting base is provided with a second connecting plate, and the second connecting plate is opposite to and fixedly connected with the second fixed disk.

Optionally, in a preferred embodiment of the present invention, a through hole is formed in the first connecting plate, and the connecting shaft is inserted into the through hole.

On the other hand, the embodiment of the invention provides a rotary drilling rig, which comprises a machine body, a mast and the steel wire rope guide device, wherein the mast is fixedly arranged on the machine body, and an installation base of the steel wire rope guide device is fixedly connected with the mast.

The embodiment of the invention has the beneficial effects that:

the steel wire rope guide device comprises a mounting base, a rotary component, a pulley bracket and a guide pulley; the rotary assembly comprises a connecting shaft, a first fixing disc and a second fixing disc, one end of the connecting shaft is fixedly connected with the first fixing disc, a first cavity is arranged in the other end of the connecting shaft, and a spherical connecting piece is arranged on the second fixing disc and is accommodated in the first cavity; the pulley bracket is fixedly connected with the rotary component through a first fixed disk, and the mounting base is fixedly connected with the rotary component through a second fixed disk; the guide pulley is arranged on the pulley bracket; the mounting base is used for fixedly connecting a mast of the rotary drilling rig. The spherical connecting piece is accommodated in the first cavity, so that the spherical connecting piece can be rotatably connected with the first cavity, or the spherical connecting piece is rotatably connected with the connecting shaft. Because the one end and the first fixed disk fixed connection of connecting axle, the one end and the second fixed disk fixed connection of spherical connecting piece, consequently, rotate through spherical connecting piece and connecting axle and be connected, can make second fixed disk and first fixed disk rotate and be connected. And the pulley support is fixedly connected with the rotary component through the first fixed disk, and the mounting base is fixedly connected with the rotary component through the second fixed disk, so that the pulley support can be rotatably connected with the mounting base through the second fixed disk and the first fixed disk, in other words, the pulley support can be rotatably connected with the mounting base through the rotary component. Compared with the mode that the pulley support adopts a simple swing structure to be connected with the installation base in a rotating mode in the prior art, the pulley support provided by the application can rotate to be connected with the installation base through the rotary assembly, especially can be accommodated in the first cavity through the spherical connecting piece, so that the pulley support can rotate more freely relative to the installation base, or the pulley support has larger freedom degree relative to the rotation of the installation base, and the pulley support simultaneously comprises the rotation along the axial direction of the guide pulley and the rotation along the radial direction of the guide pulley. Just so, the wire rope guider that this application provided can make the guide pulley frame along with wire rope's play rope position swing to reduce the wearing and tearing to main hoist wire rope among the rotary drilling rig operation process, and the wire rope guider that this application provided still has simple structure and the lower advantage of cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a wire rope guide device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a swivel assembly in a cable guide device according to an embodiment of the present invention;

fig. 3 is a second schematic structural view of a swivel assembly in the cable guide device according to the embodiment of the present invention;

fig. 4 is a third schematic structural diagram of a swivel assembly in the cable guide device according to the embodiment of the present invention.

Icon: 100-wire rope guide; 10-mounting a base; 11-a second connecting plate; 20-a slewing assembly; 21-a first fixed disk; 211-a buffer material; 22-a second fixed disk; 221-spherical connectors; 222-a transition piece; 223-a second cavity; 23-a connecting shaft; 30-a pulley support; 31-a first connection plate; 40-guide pulley.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 to 4, the present embodiment provides a steel cable guiding device 100, which includes a mounting base 10, a rotating assembly 20, a pulley bracket 30 and a guiding pulley 40; the rotating assembly 20 comprises a connecting shaft 23, a first fixed disc 21 and a second fixed disc 22, one end of the connecting shaft 23 is fixedly connected with the first fixed disc 21, a first cavity is arranged in the other end of the connecting shaft 23, a spherical connecting piece 221 is arranged on the second fixed disc 22, and the spherical connecting piece 221 is accommodated in the first cavity; the pulley bracket 30 is fixedly connected with the rotary component 20 through a first fixed disk 21, and the mounting base 10 is fixedly connected with the rotary component 20 through a second fixed disk 22; the guide pulley 40 is mounted on the pulley bracket 30; the mounting base 10 is used for fixedly connecting a mast of the rotary drilling rig.

It should be noted that, firstly, the specific structures of the mounting base 10, the pulley bracket 30 and the guide pulley 40 described above should be reasonably selected and designed by those skilled in the art with reference to the specific structures of the corresponding parts in the rotary drilling rig of the prior art, and the main improvement point of the present application is the revolving assembly 20, so that the mounting base 10, the pulley bracket 30 and the guide pulley 40 are not explained too much here.

Secondly, as shown in fig. 2 to 4, the rotation assembly 20 includes a connection shaft 23, a first fixed disk 21 and a second fixed disk 22, one end of the connection shaft 23 is fixedly connected with the first fixed disk 21, a first cavity is disposed in the other end of the connection shaft 23, a spherical connecting member 221 is disposed on the second fixed disk 22, and the spherical connecting member 221 is accommodated in the first cavity. By receiving the spherical connecting member 221 in the first cavity, the spherical connecting member 221 can be rotatably connected with the first cavity, or the spherical connecting member 221 can be rotatably connected with the connecting shaft 23. Since one end of the connecting shaft 23 is fixedly connected with the first fixed disk 21 and one end of the spherical connecting member 221 is fixedly connected with the second fixed disk 22, the second fixed disk 22 can be rotatably connected with the first fixed disk 21 by rotatably connecting the spherical connecting member 221 with the connecting shaft 23. Since the pulley bracket 30 is fixedly connected to the rotating assembly 20 through the first fixing plate 21 and the mounting base 10 is fixedly connected to the rotating assembly 20 through the second fixing plate 22, the pulley bracket 30 can be rotatably connected to the mounting base 10 through the second fixing plate 22 rotatably connected to the first fixing plate 21, in other words, the pulley bracket 30 can be rotatably connected to the mounting base 10 through the rotating assembly 20.

Thirdly, compared with the manner that the pulley bracket 30 is rotatably connected with the mounting base 10 by a simple swing structure in the prior art, the pulley bracket 30 provided by the present application is rotatably connected with the mounting base 10 by the swing component 20, especially is accommodated in the first cavity by the spherical connecting part 221, so that the pulley bracket 30 can rotate more freely relative to the mounting base 10, or the pulley bracket 30 has a greater degree of freedom of rotation relative to the mounting base 10, wherein the rotation in the axial direction of the guide pulley 40 and the rotation in the radial direction of the guide pulley 40 are both included. Just so, the steel wire rope guiding device 100 that this application provided can make the guide pulley 40 erect along with the play rope position swing of wire rope to reduce the wearing and tearing to main hoist wire rope among the rotary drilling rig operation process, and the steel wire rope guiding device 100 that this application provided still has simple structure and the lower advantage of cost.

As described above, the wire rope guide 100 includes the mounting base 10, the swing assembly 20, the pulley bracket 30, and the guide pulley 40; the rotating assembly 20 comprises a connecting shaft 23, a first fixed disc 21 and a second fixed disc 22, one end of the connecting shaft 23 is fixedly connected with the first fixed disc 21, a first cavity is arranged in the other end of the connecting shaft 23, a spherical connecting piece 221 is arranged on the second fixed disc 22, and the spherical connecting piece 221 is accommodated in the first cavity; the pulley bracket 30 is fixedly connected with the rotary component 20 through a first fixed disk 21, and the mounting base 10 is fixedly connected with the rotary component 20 through a second fixed disk 22; the guide pulley 40 is mounted on the pulley bracket 30; the mounting base 10 is used for fixedly connecting a mast of the rotary drilling rig. By receiving the spherical connecting member 221 in the first cavity, the spherical connecting member 221 can be rotatably connected with the first cavity, or the spherical connecting member 221 can be rotatably connected with the connecting shaft 23. Since one end of the connecting shaft 23 is fixedly connected with the first fixed disk 21 and one end of the spherical connecting member 221 is fixedly connected with the second fixed disk 22, the second fixed disk 22 can be rotatably connected with the first fixed disk 21 by rotatably connecting the spherical connecting member 221 with the connecting shaft 23. Since the pulley bracket 30 is fixedly connected to the rotating assembly 20 through the first fixing plate 21 and the mounting base 10 is fixedly connected to the rotating assembly 20 through the second fixing plate 22, the pulley bracket 30 can be rotatably connected to the mounting base 10 through the second fixing plate 22 rotatably connected to the first fixing plate 21, in other words, the pulley bracket 30 can be rotatably connected to the mounting base 10 through the rotating assembly 20. Compared with the prior art in which the pulley bracket 30 is rotatably connected to the mounting base 10 by a simple swing structure, the pulley bracket 30 provided by the present application can be rotatably connected to the mounting base 10 by the swivel assembly 20, and particularly, the pulley bracket 30 is accommodated in the first cavity by the spherical connecting member 221, so that the pulley bracket 30 can rotate more freely relative to the mounting base 10, or the pulley bracket 30 has a greater degree of freedom of rotation relative to the mounting base 10, wherein the rotation in the axial direction of the guide pulley 40 and the rotation in the radial direction of the guide pulley 40 are both included. Just so, the steel wire rope guiding device 100 that this application provided can make the guide pulley 40 erect along with the play rope position swing of wire rope to reduce the wearing and tearing to main hoist wire rope among the rotary drilling rig operation process, and the steel wire rope guiding device 100 that this application provided still has simple structure and the lower advantage of cost.

Preferably, the first cavity is a spherical cavity matched with the shape of the spherical connecting piece 221, so that the connecting shaft 23 and the spherical connecting piece 221 form a spherical fit, and thus the rotation of the spherical connecting piece 221 relative to the connecting shaft 23 is smoother, and further the rotation of the pulley bracket 30 relative to the mounting base 10 is smoother.

Further, as shown in fig. 4, in the present embodiment, a buffer material 211 is disposed in the first cavity, and a groove is disposed in an end of the buffer material 211 facing the ball-shaped connector 221, and a shape of the groove matches a shape of the ball-shaped connector 221.

It should be noted that the buffering material 211 is arranged in the first cavity, a groove is arranged in the buffering material 211, and the shape of the groove is matched with the shape of the spherical connecting piece 221, so that the groove and the spherical connecting piece 221 form spherical fit, and the spherical connecting piece 221 can be prevented from being in direct contact with the inner wall surface of the connecting shaft 23, and the inner wall surface of the connecting shaft 23 is prevented from being abraded in the process that the spherical connecting piece 221 rotates relative to the connecting shaft 23. When the buffer material 211 is provided, the ball joint 221 may be press-fitted into the groove of the buffer material 211.

The buffer material 211 may be a Polyamide (PA) material. The polyamide is also called nylon and chinlon, has good comprehensive properties including mechanical property, heat resistance, abrasion resistance, chemical resistance and self-lubricity, has low friction coefficient and certain flame retardance, and is easy to process, so that the polyamide is suitable for manufacturing abrasion-resistant parts in mechanical equipment. Due to the abrasion resistance of the polyamide material, the abrasion of the ball-shaped connecting piece 221 to the buffer material 211 can be reduced as much as possible, and the service life of the rotating assembly 20 can be further prolonged, so that the increase of maintenance cost and the reduction of operation progress caused by frequent replacement of the rotating assembly 20 can be avoided.

As shown in fig. 1 to 4, in the present embodiment, the spherical connecting member 221 is connected to the second fixed disk 22 through a transition piece 222, and the transition piece 222 is located outside the first cavity to increase the distance between the end of the connecting shaft 23 close to the second fixed disk 22 and the second fixed disk 22, so as to avoid interference of the connecting shaft 23 and the second fixed disk 22 with rotation of the pulley bracket 30 relative to the mounting base 10.

As shown in fig. 4, in order to reduce the weight of the swing assembly 20 and simultaneously ensure the connection strength of the swing assembly 20, in the present embodiment, the ball joint 221 is integrally formed with the transition piece 222, and a second cavity 223 is formed therein.

In the present embodiment, the connecting shaft 23, the spherical connecting member 221, the first fixed disk 21, and the second fixed disk 22 are concentrically arranged such that the rotation center of the spherical connecting member 221 with respect to the connecting shaft 23, the rotation center of the first fixed disk 21 with respect to the second fixed disk 22, and the rotation center of the pulley holder 30 with respect to the mounting base 10 coincide with each other.

In this embodiment, the first fixed disk 21 and the second fixed disk 22 may be flanges in the prior art, and the types of the flanges may be the same or different, and those skilled in the art should be able to reasonably select and design according to the actual stress condition, which is not limited herein.

As shown in fig. 1, in the present embodiment, a first connecting plate 31 is disposed on the pulley bracket 30, and the first connecting plate 31 is opposite to and fixedly connected to the first fixing plate 21; the mounting base 10 is provided with a second connecting plate 11, and the second connecting plate 11 is opposite to and fixedly connected with the second fixed disk 22.

Of course, in other embodiments, the first connecting plate 31 may further have a through hole, and the connecting shaft 23 is inserted into the through hole, so that the first fixing disk 21 can be fixedly connected with the side of the first connecting plate 31 away from the first fixing disk 21, thereby being suitable for more pulley brackets 30 with different structures.

The application also provides a rotary drilling rig. The rotary drilling rig provided by the embodiment comprises a machine body, a mast and the steel wire rope guide device 100, wherein the mast is fixedly arranged on the machine body, and an installation base of the steel wire rope guide device is fixedly connected with the mast. Since the structure and advantageous effects of the wire rope guide 100 have been described in detail in the foregoing embodiments, they will not be described in detail.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel wire rope guide device is characterized by comprising an installation base, a rotary component, a pulley bracket and a guide pulley;

the guide pulley is arranged on the pulley bracket;

2. A cable guide device according to claim 1, wherein the first cavity is a spherical cavity shaped to match the spherical connector.

3. A steel cable guide device as claimed in claim 1, wherein a buffer material is provided in the first cavity, a recess being provided in an end of the buffer material facing the ball-shaped connector, the recess having a shape matching the shape of the ball-shaped connector.

4. The wire rope guide of claim 1, wherein the ball joint is coupled to the second anchor plate by a transition piece, the transition piece being located outside the first cavity.

5. A cable guide device according to claim 4, wherein the ball joint is formed integrally with the transition piece and defines a second cavity therein.

6. The wire rope guide according to any one of claims 1 to 5, wherein the connecting shaft, the spherical connecting member, the first fixing plate, and the second fixing plate are concentrically disposed.

7. The wire rope guide of claim 1, wherein the first anchor plate and the second anchor plate are both flanges.

8. The steel wire rope guide device according to claim 1 or 7, wherein a first connecting plate is arranged on the pulley bracket, and the first connecting plate is opposite to and fixedly connected with the first fixed disc;

9. The wire rope guide device according to claim 8, wherein the first connecting plate is provided with a through hole, and the connecting shaft is inserted into the through hole.

10. A rotary drilling rig, characterized by comprising a machine body, a mast and the steel wire rope guide device of any one of claims 1 to 9, wherein the mast is fixedly arranged on the machine body, and a mounting base of the steel wire rope guide device is fixedly connected with the mast.