CN111980600A

CN111980600A - Winding mechanism and rotary drilling rig

Info

Publication number: CN111980600A
Application number: CN202011006969.1A
Authority: CN
Inventors: 张世平; 安聪锋; 康乐
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2020-11-24

Abstract

The application provides a furling mechanism and a rotary drilling rig, and relates to the field of engineering machinery, wherein a second one of a first moving assembly and a second moving assembly is fixed to enable the furling mechanism to be in a first posture, and when a driving assembly receives a cable component in the first posture, the first one of the first moving assembly and the second moving assembly moves towards the second one; the second is released to bring the take-up mechanism to a second position in which the second moves towards the first when the drive assembly receives the cable member and is able to further drive the first for movement with the mechanism to be driven. The application provides a furling mechanism adopts the cable component, through the second two in the fixed two motion subassemblies of release, realizes pressurization and lift-up process, is applied to the rig soon with the furling mechanism, has consequently reduced the maintenance degree of difficulty of cable component to the cost of rig soon has been reduced soon.

Description

Winding mechanism and rotary drilling rig

Technical Field

The application relates to the field of engineering machinery, in particular to a winding mechanism and a rotary drilling rig.

Background

In the existing rotary drilling rig, two sets of systems which work independently are respectively adopted for pressurizing and lifting a drill rod, namely, the pressurizing and lifting are respectively realized by driving a steel wire rope to bypass a pulley block by using one set of winch, namely, the pressurizing and lifting of the drill rod are respectively controlled by using two steel wire ropes through positive and negative rotation of the winch, so that the difficulty in maintaining the steel wire ropes is increased, and the cost of the rotary drilling rig is increased.

Disclosure of Invention

In view of this, the application provides a roll-up mechanism and rotary drilling rig, aim at, solves above technical problem to a certain extent.

In a first aspect, the present application provides a furling mechanism, comprising:

a first moving assembly and a second moving assembly arranged along a predetermined direction;

a cable member passing through the first and second motion assemblies;

a drive assembly connected to one end of the cable member;

a second of the first and second moving assemblies being fixed to place the take-up mechanism in a first position in which a first of the first and second moving assemblies moves toward the second when the drive assembly receives the cable member;

the first one is connected with a mechanism to be driven;

the second is released to bring the take-up mechanism to a second attitude in which, when the drive assembly receives the cable member, the second moves towards the first and can further drive the first to move in unison with the mechanism to be driven.

Preferably, the first motion assembly is located above the second motion assembly, the first motion assembly being formed as the first and the second motion assembly being formed as the second.

Preferably, the first movement assembly comprises a first guide member, the second movement assembly comprises a second guide member, a part of the cable member is wound on the first guide member, and a part of the cable member is wound on the second guide member;

when the cable member is received in the drive unit, the cable member moves in a first clockwise direction around the cable member portion provided on the first guide member, and moves in a second clockwise direction around the cable member portion provided on the second guide member, the first and second clockwise directions being opposite to each other.

Preferably, the number of the first guide members is m, the number of the second guide members is m +1, the cable members are alternately wound between the first guide members and the second guide members, m is greater than or equal to 1, and m is an integer.

Preferably, the end of the cable member connected to the drive assembly is defined as a first end of the cable member, and the end of the cable member opposite the first end of the cable member is defined as a second end of the cable member;

the retraction mechanism further includes a third guide member through which the second end of the cable member passes before the first and second guide members.

Preferably, the second end of the cable member is fixed in a predetermined position, the predetermined position being independent of the second guide member; or

The second end of the cable member is fixed to an outer side portion of a last of the m +1 second guide members.

Preferably, the first guide member, the second guide member and the third guide member are each formed as a pulley.

Preferably, the second motion assembly further comprises a seat member, the second guide member being provided to the seat member;

the drive assembly is formed as a winch;

the furling mechanism further comprising a support member, the first and second moving assemblies both being connected to the support member and being movable relative thereto;

in the first posture, the second is fixed to the support member.

In a second aspect, the present application provides a rotary drilling rig, including the above-mentioned furling mechanism.

Preferably, the predetermined direction is a vertical direction, and the rotary drilling rig further includes:

a mast member to which the first motion assembly and the second motion assembly are each coupled and which is movable in a vertical direction relative to the mast member;

the mechanism to be driven comprises a power head and a drilling tool of the rotary drilling rig.

The application provides a furling mechanism adopts the cable component, through the second two in the fixed two motion subassemblies of release, realizes pressurization and lift-up process, is applied to the rig soon with the furling mechanism, has consequently reduced the maintenance degree of difficulty of cable component to the cost of rig soon has been reduced soon.

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

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required 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 application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 shows a schematic view of a first attitude of a first embodiment of a furling mechanism;

FIG. 2 shows a schematic view of a second attitude of the first embodiment of the retraction mechanism;

FIG. 3 shows a schematic view of the lift magnification of a first embodiment of the furling mechanism;

FIG. 4 shows a schematic view of the lift magnification of a second embodiment of the furling mechanism;

fig. 5 shows a schematic diagram of the lifting factor of a third embodiment of the roll-up mechanism.

Reference numerals:

1-hoisting; 2-a steel wire rope; 3-a first pulley; 4-a second pulley; 5-a third pulley; 6-a power head; 7-a pulley yoke; 8-a predetermined position; 9-a mast;

a-a first lifting magnification; b-a second lifting magnification; c-third lifting multiplying power.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. 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 application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Referring to fig. 1 to 5, the present embodiment provides a retracting mechanism including a driving assembly, a first moving assembly, a second moving assembly and a cable member, and the connection relationship and the operation principle of the foregoing components will be described in detail below.

In an embodiment, the furling mechanism can be used for a rotary drilling rig, and for the convenience of the following description of the characteristics of the furling mechanism, the components of the general rotary drilling rig will be briefly described here. The rotary drilling rig may generally comprise a power head 6 and a drilling tool connected below the power head 6, wherein the power head 6 is used for driving the drilling tool to drill. The rotary drilling rig further typically comprises a mast 9, which mast 9 can be arranged in a vertical direction and can serve as a support, and the power head 6 can be moved up and down along the mast 9 via a carriage, whereby the drilling tool is lifted when the power head 6 is raised and pressurized when the power head 6 is lowered.

On the basis of the structure of the rotary drilling rig, referring to fig. 1, fig. 1 shows a schematic diagram of a first embodiment of a furling mechanism, in the first embodiment, a first movement assembly may include a first pulley 3, and the first pulley 3 may be rotatably mounted on the power head 6 via a pin shaft. The second moving assembly may include a second pulley 4 and a pulley frame 7, the second pulley 4 may also be rotatably mounted on the pulley frame 7 via a pin, further, the pulley frame 7 may be disposed below the power head 6, a slider may be disposed on the pulley frame 7, and a guide rail matched with the slider may be disposed on the mast 9, so that the pulley frame 7 may also perform a lifting motion along the mast 9.

In the first embodiment, the number of the second pulleys 4 may be two, the number of the first pulleys 3 may be one, and the two second pulleys 4 may be arranged at the same height, for example, the axes of the two second pulleys 4 are located at the same height. The retraction mechanism may further comprise a third pulley 5, which third pulley 5 may be arranged, for example, on the left side of the power head 6. The first pulley 3, the second pulley 4 and the third pulley 5 are used to be wound by the wire rope 2, and as for the winding manner, the following description will be made.

The first end of the wire rope 2 may be connected to the hoist 1 so that the hoist 1 can receive the wire rope 2 when rotating, and the second end of the wire rope 2 may first be wound around the third pulley 5, and then alternately wound around the second pulley 4 and the first pulley 3, where the term "alternately wound" means that the second end of the wire rope 2 is wound around the left second pulley 4, then around the first pulley 3, and then around the right second pulley 4. In the first embodiment, the second end of the wire rope 2 may be finally fixed at a predetermined position 8, and with continued reference to fig. 1, the predetermined position 8 may be independent of the right-hand second pulley 4, for example, may be a point on the mast 9 (the mast 9 shown in the figure by the dashed box is only schematically indicated, and does not mean that the mast 9 is only provided in the illustration).

In the first embodiment, the pulley yoke 7 can be fixed to the mast 9 or released with respect to the mast 9 (i.e. capable of lifting movement with respect to the mast 9), and fig. 1 shows the case where the pulley yoke 7 is fixed to the mast 9, in which case the attitude of the furling mechanism can be defined as the first attitude, as opposed to the case where the pulley yoke 7 is released, as shown in fig. 2, in which case the attitude of the furling mechanism can be defined as the second attitude. With reference to fig. 1 and 2, when the hoist 1 winds the wire rope 2, regardless of whether the winding mechanism is in the first posture or the second posture, a portion of the wire rope 2 wound around the first sheave 3 moves in the counterclockwise direction, a portion of the wire rope 2 wound around the second sheave 4 moves in the clockwise direction, and further, similarly, a portion of the wire rope 2 wound around the third sheave 5 moves in the counterclockwise direction.

Based on the above-described features, the operation of the hoisting 1 mechanism in the first embodiment will be specifically described below. Still referring to fig. 1, as mentioned above, fig. 1 shows the first posture of the retracting mechanism, i.e. the pulley yoke 7 is fixed to the mast 9, so when the cable 2 is gradually retracted by the winding 1, the first pulley 3 and the power head 6 will gradually move downwards (i.e. towards the pulley yoke 7) as the cable 2 is gradually retracted, thus achieving the pressurizing process of the power head 6 and the drilling tool. Further referring to fig. 2, fig. 2 is a second posture of the winding mechanism, when the steel wire rope 2 is wound by the winding mechanism 1 and stored, the pulley yoke 7 and the two second pulleys 4 ascend, and when the pulley yoke 7 abuts against the power head 6, the pulley yoke 7 and the power head 6 ascend synchronously, so that the power head 6 and the drilling tool are lifted, and thus the lifting process of the power head 6 and the drilling tool is realized.

With further reference to fig. 3, fig. 3 shows the second posture of the first embodiment of the retracting mechanism, i.e. the lifting process, and as can be seen from fig. 3, the pulley yoke 7, the second pulley 4 and the first pulley 3, as well as the power head 6 and the drill are carried by four segments of the wire rope 2 marked by the dash-dot line, so that the first lifting ratio a of the first embodiment of the retracting mechanism is 4, i.e. the lifting process is performed at 4 ratios, and likewise, although not shown, the ratio of the pressurizing process is the same as the ratio of the lifting process, i.e. also at 4 ratios.

Similarly, referring to fig. 4, fig. 4 shows a second attitude of the second embodiment of the take-up mechanism, which differs from the first embodiment only in the predetermined position 8 to which the second end of the wire rope 2 is fixed, as can be seen by comparing fig. 4 and 3. In the second embodiment of the retracting mechanism, the second end of the wire rope 2 is fixed at the outer side part of the right second pulley 4, so the pulley yoke 7, the second pulley 4, the first pulley 3, the power head 6 and the drill are carried by three segments of the wire rope 2 marked by dot-dash lines, that is, the second lifting multiplying factor B corresponding to the second embodiment of the retracting mechanism is 3 multiplying factors.

With further reference to fig. 5, fig. 5 illustrates a second attitude of a third embodiment of the furling mechanism, which will be described in detail below. In the third embodiment of the retraction mechanism, the number of the first pulleys 3 may be two, the number of the second pulleys 4 may be three, and the remaining portions may be arranged in the same manner as in the first embodiment of the retraction mechanism. Therefore, the second end of the steel wire rope 2 is firstly wound around the third pulley 5, then is wound around the second pulley 4 and the first pulley 3 alternately, namely is firstly wound around the left second pulley 4, then is wound around the left first pulley 3, then is wound around the middle second pulley 4, and on the basis, is further wound around the right first pulley 3, and finally is wound around the right second pulley 4, and is finally fixed at the preset position 8.

Still referring to fig. 5, it can be known that, in the third embodiment of the winding mechanism, the portion of the wire rope 2 wound around the first pulley 3, the portion of the wire rope 2 wound around the second pulley 4, and the portion of the wire rope 2 wound around the third pulley 5 have the same motion law when the wire rope 2 is stored in the winding 1 as that of the first and second embodiments of the winding mechanism, and therefore, the description thereof is omitted.

With further reference to fig. 5, according to the above-described features, during the lifting process of the third embodiment, the pulley yoke 7, the second pulley 4, the first pulley 3, the power head 6 and the drill are carried by six segments of the wire rope 2 marked by dashed lines, i.e. the third lifting ratio C corresponding to the third embodiment of the furling mechanism is 6.

In summary, although not mentioned, the embodiments of the winding mechanism are obviously not limited to this, for example, the number of the first pulleys 3 is m, the number of the second pulleys 4 is m +1 (m is greater than or equal to 1, and m is an integer), and further winding mechanisms may be provided according to the above rule of winding the steel wire rope 2 in combination with the setting of the predetermined position 8, and will not be described again.

The winding mechanism provided by the embodiment only adopts one steel wire rope 2, realizes the pressurizing and lifting process by fixing and releasing the pulley yoke 7, thereby reducing the maintenance difficulty of the steel wire rope 2, reducing the cost of the rotary drilling rig, flexibly changing the lifting multiplying power and the pressurizing multiplying power according to actual needs, and lifting and pressurizing with the multiplying power of three times and more.

The embodiment further provides a rotary drilling rig, which comprises the winding mechanism, the mast 9, the power head 6 and the drilling tool, and also has the beneficial effects as described above, and therefore details are not repeated herein.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the present application and the equivalents thereof, or directly or indirectly applied to other related technical fields, without departing from the spirit of the present application are intended to be embraced therein.

Claims

1. A retracting mechanism, comprising:

a cable member passing through the first and second motion assemblies;

a drive assembly connected to one end of the cable member;

the first one is connected with a mechanism to be driven;

2. The furling mechanism of claim 1 further comprising a drive mechanism,

the first motion assembly is located above the second motion assembly, the first motion assembly being formed as the first, the second motion assembly being formed as the second.

3. The furling mechanism of claim 1 further comprising a drive mechanism,

the first motion assembly comprises a first guide member, the second motion assembly comprises a second guide member, a part of the cable member is wound on the first guide member, and a part of the cable member is wound on the second guide member;

4. The furling mechanism of claim 3 further comprising a drive mechanism,

the number of the first guide members is m, the number of the second guide members is m +1, the cable members are wound alternately between the first guide members and the second guide members, m is greater than or equal to 1, and m is an integer.

5. The furling mechanism of claim 4 further comprising a drive mechanism,

the end of the cable member connected to the drive assembly is defined as a first end of the cable member and the end of the cable member opposite the first end of the cable member is defined as a second end of the cable member;

6. The furling mechanism of claim 5 further comprising a drive mechanism,

the second end of the cable member is fixed at a predetermined position, the predetermined position being independent of the second guide member; or

7. The retracting mechanism according to claim 5 or 6,

the first guide member, the second guide member, and the third guide member are each formed as a pulley.

8. The furling mechanism according to any one of claims 3 to 6 further characterized by,

the second motion assembly further comprises a seat member, the second guide member being disposed on the seat member;

the drive assembly is formed as a winch;

in the first posture, the second is fixed to the support member.

9. A rotary drilling rig characterized by comprising a furling mechanism according to any one of claims 1 to 8.

10. The rotary drilling rig according to claim 9, wherein the predetermined direction is a vertical direction, the rotary drilling rig further comprising: