CN110745726A - Pulley device, pulley assembly and rotary drilling rig - Google Patents

Abstract

The invention provides a pulley device, a pulley assembly and a rotary drilling rig, relates to the technical field of rotary drilling rigs, and aims to solve the technical problem that the rotary drilling rig only provides one drilling center distance in the prior art. The pulley device comprises a frame body and a moving part arranged on the frame body, wherein the moving part is used for pivotally connecting a driven pulley in a pulley block, and the relative position between the moving part and the frame body is adjustable in the horizontal direction, so that the distance between a main pulley and the driven pulley in the pulley block is adjustable in the horizontal direction. The pulley assembly comprises a main pulley, a secondary pulley, a steel wire rope connecting the main pulley and the secondary pulley and a pulley device. The rotary drilling rig comprises a pulley assembly.

Description

Pulley device, pulley assembly and rotary drilling rig

technical field

The invention relates to the technical field of rotary drilling rigs, in particular to a pulley device, a pulley assembly and a rotary drilling rig.

Background technique

Rotary drilling rig is a kind of construction machinery suitable for hole-forming operations in construction foundation projects. It is generally equipped with auxiliary hoisting equipment for rotary drilling rigs. Among them, the auxiliary winch equipment of the rotary drilling rig is mainly used to make the auxiliary winch wire rope pass through the pulley block at the top of the mast to complete the corresponding hoisting operation.

At present, the rotary drilling rigs in some technologies only provide a center distance of the drill hole (the center distance of the drill hole refers to the horizontal distance between the drill pipe and the frame), which can basically meet the requirements of rotary excavation under a maximum drill hole diameter. function, the scalability is poor. Specifically, users may encounter various construction methods during the construction process. For example, when performing rotary drilling operations in soil layers, users often hope that the center distance of the drilling holes can be increased to realize large-diameter drilling operations to improve construction efficiency.

In order to solve the above problems, some technologies often adopt the method of repurchasing the main engine or purchasing multiple sets of drill masts to meet the usage requirements, which undoubtedly greatly increases the construction cost.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pulley device, a pulley assembly and a rotary drilling rig, so as to alleviate the technical problem that the rotary drilling rig in the prior art only provides one drilling center distance.

In a first aspect, the embodiment provides a pulley device for installing a pulley block, comprising: a frame body and a movable member arranged on the frame body, the movable member is used for pivotally connecting a slave pulley in the pulley block, the The relative position between the movable element and the frame body is adjustable in the horizontal direction, so that the distance between the main pulley and the slave pulley in the pulley block can be adjusted in the horizontal direction.

In an optional embodiment, the frame body is provided with a first hole, the movable member is provided with a second hole for passing through the slave shaft of the slave pulley, and the second hole can A plurality of positions of the frame body communicate with the first hole.

In an optional embodiment, the number of the first holes is two, and both are circular holes, the two first holes are arranged at intervals, and the distance between the centers of the two first holes in the horizontal direction greater than zero, the second hole can communicate with either of the two first holes.

Alternatively, the first hole is a waist-shaped hole, and the second hole can communicate with the waist-shaped hole at multiple positions.

In an optional embodiment, a fixing member is further included, the fixing member is fixedly connected to the frame body, and the fixing member is provided with two third holes arranged at intervals.

The movable member is detachably connected to the fixing member, so that the second hole can communicate with the first hole and any one of the corresponding third holes.

In an optional embodiment, a cover plate is further included, the cover plate is detachably connected to the fixing member, the cover plate is covered at one of the third holes of the fixing member, and the The movable piece is connected to the other position of the third hole of the fixing piece.

In an optional embodiment, the frame body includes a first side plate and a second side plate that are connected and arranged in parallel, and a space is left between the first side plate and the second side plate for accommodating the slave Pulley clearance.

There are at least two movable parts, the first side plate and the second side plate are both connected to at least one of the movable parts, and the movable part on the first side plate is connected to the second side plate. The movable parts on the board are arranged facing each other.

In an optional embodiment, a stopper is further included, the stopper is detachably connected to the movable piece, and the stopper is used to fix the slave shaft on the slave pulley relative to the movable piece.

In an optional implementation manner, there are two limiters, which are a first limiter and a second limiter, respectively, and an accommodation space is formed between the first limiter and the second limiter for making The slave shaft on the slave pulley is limited in the accommodating space.

In a second aspect, the embodiment provides a pulley assembly, comprising: a master pulley, a slave pulley, a wire rope connecting the master pulley and the slave pulley, and the pulley device according to any one of the foregoing embodiments; the master pulley is pivotally connected to the frame body, and the slave pulley is pivotally connected to the movable piece.

In a third aspect, the embodiments provide a rotary drilling rig, comprising: the pulley assembly described in the foregoing embodiments.

The beneficial effects of the pulley device, pulley assembly and rotary drilling rig provided by the present invention:

During installation, the main pulley is pivotally connected to the frame body, and the slave pulley is pivotally connected to the movable member, so that both the main pulley and the slave pulley can rotate relative to the frame body to meet the requirements of subsequent hoisting operations.

In the pulley device, the slave pulley is pivotally connected to the movable member, and the relative position of the movable member and the frame body is adjustable in the horizontal direction, and the setting can make the relative position of the slave pulley and the frame body change in the horizontal direction, Furthermore, the distance between the main pulley and the slave pulley can be adjusted in the horizontal direction; since the distance between the main pulley and the slave pulley is adjustable in the horizontal direction, in the actual construction process, when it is necessary to expand the diameter of the drill hole ( Or expand a variety of construction methods), you can change the distance between the main pulley and the slave pulley by changing the relative position of the movable part and the frame body, and increase the distance between the two to increase the drilling center. distance purpose.

It can be seen from the foregoing that the pulley device in the invention can provide a plurality of different installation positions for the slave pulley, and through the different assembly positions of the movable parts, the assembly position of the slave pulley can be changed, and finally the adjustment of various drilling center distances can be realized. Compared with the prior art, users who use the pulley device of the invention do not need to repurchase the main engine or purchase multiple sets of drill masts, which can save construction costs more.

It should be noted that, generally, a pulley block includes a master pulley and a slave pulley.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is a partial structural schematic diagram of a pulley assembly provided by an embodiment of the present invention;

Fig. 2 is the partial structure schematic diagram of the frame body;

3 is a schematic diagram of a partial connection between a frame body and a fixing member;

FIG. 4 is a schematic view of the structure of the fixing member.

icon:

100-frame body; 110-first side plate; 120-second side plate; 130-first hole;

200-movable part; 210-second hole;

300-slave pulley; 400-fixing piece; 410-third hole; 500-cover plate; 600-limiting piece.

Detailed ways

In order to make the purposes, 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 accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation 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. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, terms such as "horizontal", "vertical" etc. do not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and features in the embodiments may be combined with each other without conflict.

This embodiment provides a pulley device for installing a pulley block. As shown in FIG. 1 , the pulley device includes a frame body 100 and a movable member 200 disposed on the frame body 100 , and the movable member 200 is used for pivoting the slave pulley in the pulley assembly. 300, the relative position between the movable member 200 and the frame body 100 is adjustable in the horizontal direction, so that the distance between the main pulley (not shown in the drawing) and the slave pulley 300 in the pulley block can be adjusted in the horizontal direction.

In this pulley device, the slave pulley 300 is pivotally connected to the movable member 200, and the relative position of the movable member 200 and the frame body 100 can be adjusted in the horizontal direction. The direction changes, so that the distance between the main pulley and the slave pulley 300 can be adjusted in the horizontal direction; since the distance between the main pulley and the slave pulley 300 is adjustable in the horizontal direction, in the actual construction process, When it is necessary to expand the diameter of the drilling hole (or expand various construction methods), the distance between the main pulley and the slave pulley 300 can be changed by changing the relative position of the movable member 200 and the frame body 100, and the distance between the two can be changed. The distance is increased to achieve the purpose of increasing the center distance of the drilling holes.

As can be seen from the foregoing, the pulley device in this embodiment can provide a plurality of different installation positions for the slave pulley 300, and through the different assembly positions of the movable member 200, the assembly position of the slave pulley 300 can be changed, and finally various drilling can be realized. For the adjustment of the center distance, compared with the prior art, users who use the pulley device in this embodiment do not need to repurchase the main engine or purchase multiple sets of drill masts, which can save construction costs more.

In addition, compared with the two first holes 130 directly opened on the frame body 100 in some technologies, the pulley device in this embodiment is more flexible due to the addition of the movable member 200 , and the installation position of the pulley 300 is more flexible, not limited to the frame. The positions of the two first holes 130 opened on the body 100 may be any position as long as the movable member 200 and the frame body 100 can be detachably installed; in addition, in some structural forms, it is not necessary to open the frame body 100 For penetrating the first hole 130 of the slave shaft, for example, the movable member 200 is installed on one side of the frame body 100 , and a second hole 210 (not shown in the drawings) for fixing the slave shaft is opened on the movable member 200 .

In one structural form, the movable member 200 is detachably connected to the frame body 100 (the structural form shown in the drawings); in another structural form, the movable member 200 can slide relative to the frame body 100, and the movable member 200 slides When reaching a certain position of the rack body 100, it can be fixed at this position (not shown in the drawings).

It should be noted that, in order to ensure that the movable member 200 and the frame body 100 are detachably connected, and the relative position between the movable member 200 and the frame body 100 can be adjusted in the horizontal direction, in an implementation manner, the frame body 100 can be There are several mounting holes on it.

Specifically, the frame body 100 and the movable member 200 are connected in the form of screw connection (not shown in the drawings). Wherein, the frame body 100 and the movable member 200 are provided with a plurality of mounting holes, and correspondingly, screws or bolts are pierced between the mounting holes, so as to realize the fixed connection of the two at multiple positions.

It should be noted that, in this embodiment, the main pulley is sleeved on the main shaft, and the main pulley can rotate around the main shaft. Correspondingly, the slave pulley 300 is sleeved on the slave shaft, and the slave pulley 300 can rotate around the slave shaft; in During specific installation, the main shaft is fixedly installed on the frame body 100 , and the slave shaft is fixedly installed on the movable member 200 .

In one embodiment, referring to FIG. 1 and FIG. 2 , the frame body 100 is provided with a first hole 130 , and the movable member 200 is provided with a second hole 210 for passing through the slave shaft of the slave pulley 300 , the second hole 210 It can communicate with the first hole 130 at multiple positions of the rack body 100 .

During specific installation, an embodiment is: the movable member 200 is located on the inner side of the frame body 100 , wherein one or both ends of the slave shaft can pass through the second hole 210 and the first hole 130 in sequence, and by connecting the slave shaft with the movable member The component 200 is relatively fixed, so as to realize the pivot connection between the pulley 300 and the frame body 100 or the movable component 200 .

Another embodiment is: the movable member 200 is located on the outer side of the frame body 100, wherein one or both ends of the slave shaft can pass through the first hole 130 and the second hole 210 in sequence, and the slave shaft and the movable member 200 are relatively fixed by making the slave shaft relatively fixed. , to realize the pivotal connection between the slave pulley 300 and the frame body 100 or the movable member 200 . Compared with the movable member 200 located inside the frame body 100 , this structure is more convenient for the installation of the slave pulley 300 and the movable member 200 .

In this embodiment, the first hole 130 may have various structural forms.

For example, as shown in FIG. 2 , the first hole 130 is an oblong hole or a waist-shaped hole, and correspondingly, the second hole 210 is a circular hole, and the inner diameter of the circular hole is slightly larger than the outer diameter of the slave shaft to ensure that the The shaft can penetrate into the second hole 210 without shaking too much.

When the first hole 130 is an oblong hole or a waist-shaped hole, the extending direction of the oblong hole or the waist-shaped hole can be approximately extended in the horizontal direction. Multiple positions of the frame body 100 are communicated with the first hole 130 , so as to realize the adjustment of the distance between the main pulley and the slave pulley 300 , and further realize the adjustment of the center distance of the drilling holes.

Another example: there are two first holes 130 (not shown in the drawings), the two first holes 130 are arranged at intervals, and the distance between the centers of the two first holes 130 in the horizontal direction is greater than zero; the second holes 210 can It communicates with any one of the two first holes 130 .

Further, the distance between the circle centers of the two first holes 130 in the horizontal direction is greater than the sum of the radii of the two holes.

When the first holes 130 are two circular holes, specifically, when the second hole 210 communicates with the first hole 130 close to the left side, that is, the movable member 200 is installed at the position of the second hole 210 on the left side, At this time, the distance between the main pulley and the slave pulley 300 is small, so that the distance between the centers of the drilling holes is small; on the contrary, when the second hole 210 communicates with the first hole 130 close to the right side, that is, the movable member 200 is installed on the right side. At the position of the second hole 210 on the side, at this time, the distance between the main pulley and the slave pulley 300 is relatively large, so that the distance between the centers of the drilling holes is relatively large.

In the above embodiment, the distance between the centers of the two first holes 130 in the horizontal direction is greater than the sum of the radii of the two holes. It can avoid the situation that the two first holes 130 are too close to be opened; wherein, the distance between the two first holes 130 is not limited, and can be set reasonably according to practical application needs.

On the basis of the above-mentioned embodiment, with reference to FIG. 1 , FIG. 3 and FIG. 4 , the pulley device further includes a fixing member 400 . The fixing member 400 is fixedly connected to the frame body 100 . The fixing member 400 is provided with two third spaced apart The hole 410; the movable piece 200 is detachably connected with the fixing piece 400, so that the second hole 210 can communicate with the first hole 130 and any corresponding third hole 410.

In the structure in which the first holes 130 are two circular holes, the two third holes 410 are in one-to-one correspondence with the two first holes 130 (not shown in the drawings). Specifically, the movable member 200 is connected to the frame body 100 near the first hole 130 on the right side. At this time, the second hole 210 communicates with the first hole 130 on the right side and the third hole 410 on the right side. In order to ensure that the end of the slave shaft can pass through the first hole 130 , the third hole 410 and the second hole 210 in sequence.

In this embodiment, the fixing member 400 can be welded to the frame body 100 ; or, please continue to refer to FIG. 1 , the fixing member 400 and the frame body 100 are detachably connected. Specifically, the fixing member 400 and the frame body 100 are each provided with a plurality of The mounting holes, correspondingly, are provided with screws or bolts between the mounting holes, so as to realize the connection between the two.

In the form in which the fixing member 400 is detachably connected to the frame body 100, when the center distance of the drilling holes needs to be adjusted, in a structural form, it is not necessary to remove the fixing member 400, only the movable member 200 needs to be removed, and the movable member 200 is connected to another first hole 130, and then the position of the slave pulley can be adjusted accordingly.

In this structural form, as shown in FIG. 1 , the pulley device further includes a cover plate 500 , the cover plate 500 is detachably connected to the fixing member 400 , and the cover plate 500 covers the position of one of the third holes 410 of the fixing member 400 . At the same time, the movable member 200 is connected to the position of another third hole 410 of the fixing member 400 to ensure that the third hole 410 is not exposed outside, which is more beautiful.

In another structural form, there are multiple movable members 200 (not shown in the drawings), and the number of the movable members 200 is equal to the number of the third holes 410, and the positions correspond one-to-one. In this structural form, when When it is necessary to adjust the center distance of the drilling holes, it is not necessary to remove the fixing member 400 or the movable member 200, and it is only necessary to adjust the position of the slave pulley 300 accordingly.

On the basis of the above-mentioned embodiment, as shown in FIG. 1 , the frame body 100 includes a first side plate 110 and a second side plate 120 which are connected and arranged in parallel. There are two movable parts 200, and the first side plate 110 and the second side plate 120 are connected to one movable part 200, wherein the movable part 200 on the first side plate 110 and the second side plate The movable piece 200 on the 120 is set directly opposite.

Wherein, the first side plate 110 and the second side plate 120 can be selected from thin plates that can generate deformation.

On the basis of the above embodiment, please continue to refer to FIG. 1 , the pulley device further includes a stopper 600 , the stopper 600 is detachably connected to the movable piece 200 , and the stopper 600 is used to make the slave shaft on the slave pulley 300 relative to the movable piece 200 fixed.

Specifically, there are two limiters 600, which are a first limiter (or an upper limiter) and a second limiter (or a lower limiter), and a accommodating space is formed between the first limiter and the second limiter. The purpose is to limit the slave shaft on the slave pulley 300 to the accommodating space, so as to prevent the slave shaft from moving in the direction of its axis, thereby preventing the pulley from shaking back and forth along the axis of the slave shaft.

Please continue to refer to FIG. 1 , the first limiting member and the second limiting member are both connected with the movable member 200 by screws or bolts.

When installing the slave pulley 300, the hole on the slave pulley 300 can be aligned with the third hole 410, and the slave shaft is inserted into the slave pulley 300 and the third hole 410, and then the fixing member 400 is respectively installed on the first side plate 110 and the second side plate 120, and then install the movable parts 200 respectively, and finally install the first limiter and the second limiter, so that the end of the slave shaft is clamped between the first limiter and the second limiter.

Referring to FIG. 1 again, the structures of the first limiting member and the second limiting member are the same, and both of them may be elongated cardboards.

It should be noted that the installation process of the slave pulley 300 is not limited to the specific form described above, and the specific installation sequence can be adjusted appropriately, as long as the slave pulley 300 can be installed.

This embodiment also provides a pulley assembly, which includes a master pulley (not shown in the drawings), a slave pulley 300, a wire rope (not shown in the drawings) connecting the master pulley and the slave pulley 300, and the aforementioned pulleys The main pulley is pivoted to the frame body 100 , and the slave pulley 300 is pivoted to the movable member 200 .

The pulley assembly includes the aforementioned pulley device, wherein the specific structure and connection method of the pulley device have been described in detail in the previous embodiments, and the pulley assembly has the same beneficial effects as the pulley device, which will not be repeated here. .

This embodiment also provides a rotary drilling rig including the aforementioned pulley assembly.

The rotary drilling rig includes the aforementioned pulley assembly, and the pulley assembly includes the aforementioned pulley device, wherein the specific structure and connection method of the pulley device have been described in detail in the previous embodiments. The same beneficial effects are not repeated here.

It should be noted that, other structures of the rotary drilling rig not mentioned in this embodiment may refer to the prior art, which is not improved in this embodiment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A pulley arrangement for mounting a pulley block, comprising: the movable part (200) is used for being pivoted with a slave pulley (300) in the pulley block, the movable part (200) is adjustable in the horizontal direction with the relative position between the support body (100), so that the distance between a main pulley in the pulley block and the slave pulley (300) is adjustable in the horizontal direction.

2. The pulley device according to claim 1, characterized in that a first hole (130) is provided on the frame body (100), a second hole (210) for passing the driven shaft of the driven pulley (300) is provided on the movable member (200), and the second hole (210) can communicate with the first hole (130) at a plurality of positions of the frame body (100).

3. The pulley device according to claim 2, characterized in that the first holes (130) are two and are circular holes, the two first holes (130) are arranged at intervals, the distance between the centers of the two first holes (130) in the horizontal direction is larger than zero, and the second hole (210) can be communicated with any one of the two first holes (130);

alternatively, the first aperture (130) is a kidney-shaped aperture, and the second aperture (210) is capable of communicating with the kidney-shaped aperture at a plurality of locations.

4. The pulley device according to claim 3, characterized in that it further comprises a fixing member (400), wherein the fixing member (400) is fixedly connected to the frame body (100), and two third holes (410) are arranged on the fixing member (400) at intervals;

the movable piece (200) is detachably connected with the fixed piece (400), so that the second hole (210) can be communicated with the first hole (130) and any corresponding third hole (410).

5. The pulley device according to claim 4, characterized in that it further comprises a cover plate (500), said cover plate (500) being detachably connected to said fixing member (400);

the cover plate (500) is covered at one position of the third hole (410) of the fixed part (400), and the movable part (200) is connected at the other position of the third hole (410) of the fixed part (400).

6. The pulley device according to claim 2, characterized in that the frame body (100) comprises a first side plate (110) and a second side plate (120) which are connected and arranged in parallel, and a gap for accommodating the slave pulley (300) is reserved between the first side plate (110) and the second side plate (120);

the number of the movable pieces (200) is at least two, the first side plate (110) and the second side plate (120) are both connected with at least one movable piece (200), and the movable piece (200) on the first side plate (110) and the movable piece (200) on the second side plate (120) are arranged just opposite to each other.

7. The pulley arrangement according to any of claims 2-6, characterized in that it further comprises a stop member (600), said stop member (600) being detachably connected to said movable member (200), said stop member (600) being adapted to fix the driven shaft on said driven pulley (300) relative to said movable member (200).

8. The pulley arrangement according to claim 7, characterized in that the number of the stop members (600) is two, respectively a first stop member (600) and a second stop member (600), and a receiving space is formed between the first stop member (600) and the second stop member (600) for limiting the driven shaft on the driven pulley (300) in the receiving space.

9. A sheave assembly, comprising: a primary sheave, a secondary sheave (300), a wire rope connecting the primary sheave and the secondary sheave (300), and the sheave arrangement of any one of claims 1-8;

the main pulley is pivoted to the frame body (100), and the auxiliary pulley (300) is pivoted to the movable piece (200).

10. A rotary drilling rig, characterized by comprising: the pulley assembly of claim 9.

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