CN213330956U

CN213330956U - Detachable elevator anti-tilting device

Info

Publication number: CN213330956U
Application number: CN202020616457.6U
Authority: CN
Inventors: 陈以田
Original assignee: Xuzhou Sizhi Intelligent Machinery Co ltd
Current assignee: Xuzhou Sizhi Intelligent Machinery Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-06-01
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a removable elevator anti-tilt device belongs to and digs rig technical field soon. The utility model discloses there is connecting groove in the middle of connector lower extreme under removable elevator anti-tilt device's the elevator, and the upper end of drilling rod has the connecting plate to insert in the connecting groove and through articulated round pin axle with the elevator is lower the connector articulated be equipped with removable anti-tilt device under the elevator between connector and the connecting plate. Before the drilling work of the rotary drilling rig, the detachable anti-tilting device is arranged between the lower connecting body of the elevator and the connecting plate to prevent the elevator from tilting; and the detachable anti-tilting device is detached after the drilling is finished. The utility model discloses can change original operation custom and installation method, can prevent that wire rope from transferring the elevator slope phenomenon that the overlength caused, guarantee that wire rope does not rotate along with the drilling rod, eliminate the potential safety hazard.

Description

Detachable elevator anti-tilting device

Technical Field

The utility model relates to a dig rig elevator soon belongs to and digs rig technical field soon.

Background

The rotary drilling rig is a commonly used construction machine in building foundation construction and is mainly used for construction of building pile foundations. The elevator is an important part between a drill rod and a steel wire rope of the rotary drilling rig, an upper joint of the elevator is connected with the steel wire rope, a lower joint of the elevator is connected with the drill rod, the steel wire rope, the elevator and the drill rod are in a straight line during normal operation, and the upper joint and the lower joint of the elevator can rotate relatively. The elevator has two main functions, namely, the elevator transmits the lifting force of a steel wire rope to lift or lower a drill rod; and secondly, the rotation of the drill rod during working is isolated, namely, the steel wire rope is ensured not to rotate along with the rotation of the drill rod, so that the service life of the steel wire rope can be protected and prolonged. In order to realize the functions of the two points of the elevator, the vertical state between the elevator and the drill rod connecting plate is kept when the rotary drilling rig drills; if the elevator inclines relative to the drill rod connecting plate, especially when the upper joint of the elevator leans against the inner wall of the outer section of drill rod, the upper joint and the lower joint of the elevator rotate together along with the drill rod, the isolation rotation function fails, and the drill rod can drive the steel wire rope to rotate together to cause the steel wire rope to be 'stressed' or 'broken' during the drilling work of the rotary drilling rig, so that the steel wire rope is easy to damage. However, in actual operation, the steel wire rope is often longer than the actually required lowering length, so that the elevator leans against the inner wall of the outer section of drill rod by rotating and inclining around the pin shaft of the drill rod connecting plate, thereby causing the function failure of isolation rotation and generating potential safety hazards.

SUMMERY OF THE UTILITY MODEL

In order to overcome the weak point of above-mentioned prior art, the utility model provides a removable elevator anti-toppling device can change original operation custom and mounting method, can prevent that wire rope from transferring the elevator slope phenomenon that the overlength caused, guarantees that wire rope does not rotate along with the drilling rod, eliminates the potential safety hazard.

The utility model discloses a realize through following technical scheme: a connecting groove is formed in the middle of the lower end of a lower connector of the elevator, a connecting plate is inserted into the connecting groove and hinged with the lower connector of the elevator through a hinge pin shaft at the upper end of a drill rod, and a detachable anti-tilting device is arranged between the lower connector of the elevator and the connecting plate.

As an embodiment, the detachable anti-tilting device is a limiting block arranged between the lower end face of the lower connector of the elevator and the upper end face of the drill rod, and the limiting block is positioned on one side or two sides of the connecting plate; or the detachable anti-tilting device is an anti-rotation block positioned between the upper end of the connecting plate and the top wall of the connecting groove, and the anti-rotation block is formed by butt joint of two right-angle stop blocks with inner arcs through stop pins.

Further, the limiting block or the anti-rotation block is an elastic body or a rigid body.

As an embodiment, the detachable anti-roll device is a shaft-like locking device parallel to the axis of the hinge pin, which penetrates into the connecting groove from the outside of the lower connecting body of the elevator and is vertically inserted into the connecting plate.

Further, the shaft locking device is a locking pin or a single-side bolt, the locking pin simultaneously penetrates through pin holes in the lower connector of the elevator and the connecting plate, the single-side bolt is in threaded connection with a threaded through hole in the lower connector of the elevator, and the inner end of the single-side bolt is inserted into a concave hole in the connecting plate corresponding to the single-side bolt.

As an embodiment, the detachable anti-tilting device is characterized in that an annular elastic band or an annular rigid hoop is embedded into an annular groove formed in the lower portion of the lower connector of the elevator, and the annular rigid hoop is formed by butting two semicircular plates or is a clamp spring.

As an embodiment, the detachable anti-tilting device is a hoop sleeve wrapped on the lower portion of the lower connector of the elevator, the inner side of the hoop sleeve is tightly attached to the outer wall of the lower connector of the elevator, the hoop sleeve is formed by butt joint of two semicircular hoop sleeves, the butt joint portion of the two semicircular hoop sleeves is fastened through a bolt and nut assembly, and a limiting table is arranged inside the semicircular hoop sleeve and inserted into holes in two ends of the hinge pin shaft.

The utility model has the advantages that: the utility model discloses be equipped with removable anti-tilt device under the elevator between connector and the connecting plate, can change original operation custom and installation method at the installation of drill bit during operation, can prevent that wire rope from transferring the elevator slope phenomenon that the overlength caused, guarantee that wire rope does not rotate along with the drilling rod, eliminate the potential safety hazard. The drill bit can be detached when not in work, the original structure is not damaged or excessively transformed, and the matching performance with the prior art is good.

Drawings

The invention will be further explained below with reference to the drawings and examples.

FIG. 1 is a schematic structural view of an embodiment of the ferrule of the present invention;

FIG. 2 is an external view of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of an annular elastic belt;

FIG. 4 is a schematic structural view of an embodiment of an annular rigid clamp;

FIG. 5 is a schematic structural diagram of an embodiment of a stopper;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a schematic structural view of an embodiment of an anti-rotation block;

FIG. 8 is a schematic structural view of an embodiment of the locking pin;

FIG. 9 is a left side view of FIG. 8;

FIG. 10 is a schematic structural view of an embodiment of a single-sided bolt;

fig. 11 is a sectional view a-a of fig. 10.

In the figure, 1, a lower connector of an elevator, 2, a connecting groove, 3, a connecting plate, 4, a drill rod, 5, a hinge pin shaft, 6, a limiting block, 7, an anti-rotation block, 7-1, a right-angle stopping block, 7-2, a stopping pin, 8, a locking pin, 9, a single-side bolt, 9-1, a concave hole, 10, an annular groove, 11, an annular elastic band, 12, an annular rigid hoop, 12-1, a semicircular plate, 13, a hoop sleeve, 13-1, a semicircular hoop sleeve, 13-2 and a limiting table.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.

Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.

As shown in fig. 1-11, the middle of the lower end of the lower connector 1 of the elevator is provided with a connecting groove 2, the upper end of a drill rod 4 is provided with a connecting plate 3 inserted into the connecting groove 2 and hinged with the lower connector 1 of the elevator through a hinge pin 5, and a detachable anti-tilting device is arranged between the lower connector 1 of the elevator and the connecting plate 3.

As an embodiment, as shown in fig. 1-2, the detachable anti-roll device is a hoop 13 wrapped on the lower part of the lower connector 1 of the elevator, the inner side of the hoop 13 is tightly attached to the outer wall of the lower connector 1 of the elevator, the hoop 13 is formed by butting two semicircular hoops 13-1, and the butting position of the two semicircular hoops 13-1 is fastened through a bolt and nut assembly. The semicircular hoop 13-1 is internally provided with a limiting table 13-2 which is inserted into the holes at the two ends of the hinge pin shaft 5. When in use, the hoop sleeve 13 can be installed and fixed and can be detached when not in use.

As an embodiment, as shown in fig. 3-4, the detachable anti-roll device is to embed an annular elastic band 11 or an annular rigid hoop 12 into an annular groove 10 formed at the lower part of the lower connecting body 1 of the elevator, where the annular rigid hoop 12 is formed by butting two semicircular plates 12-1, or the annular rigid hoop 12 is a snap spring.

As an example, as shown in fig. 5-6, the detachable anti-tipping device is a limiting block 6 installed between the lower end surface of the lower connector 1 of the elevator and the upper end surface of the drill rod 4, and the limiting block 6 is located on one side or both sides of the connecting plate 3; or as shown in fig. 7, the detachable anti-roll device is an anti-roll block 7 positioned between the upper end of the connecting plate 3 and the top wall of the connecting groove 2, and the anti-roll block 7 is formed by butting two right-angle stop blocks 7-1 with inner arcs through stop pins 7-2.

Further, the limiting block 6 or the anti-rotation block 7 is an elastic body or a rigid body.

As an example, as shown in fig. 8-11, the detachable anti-roll device is a shaft type locking device parallel to the axis of the hinge pin 5, which is inserted into the connecting groove 2 from the outside of the lower connector 1 of the elevator and is vertically inserted into the connecting plate 3.

Further, as shown in fig. 8-9, the shaft locking device is a locking pin 8, and the locking pin 8 simultaneously passes through pin holes on the lower connector 1 and the connecting plate 3 of the elevator; as shown in fig. 10-11, the shaft locking device is a single-side bolt 9, the single-side bolt 9 is spirally connected with a threaded through hole on the lower connector 1 of the elevator, and the inner end of the single-side bolt 9 is inserted into a concave hole 9-1 on the connecting plate 3 corresponding to the single-side bolt 9.

The utility model is used in a construction method of the elevator of the rotary drilling rig, before the drilling work of the rotary drilling rig, a detachable anti-tilting device like the above embodiment or the similar mode is arranged between the lower connecting body 1 and the connecting plate 3 of the elevator to prevent the elevator from tilting; and the detachable anti-tilting device is detached after the drilling is finished.

The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a removable elevator anti-toppling device, has connecting groove (2) in the middle of connector (1) lower extreme under the elevator, the upper end of drilling rod (4) has connecting plate (3) to insert in connecting groove (2) and through articulated round pin axle (5) with connector (1) is articulated under the elevator, its characterized in that: a detachable anti-tilting device is arranged between the lower connector (1) of the elevator and the connecting plate (3).

2. The removable elevator anti-roll device of claim 1, wherein: the detachable anti-tilting device is a limiting block (6) arranged between the lower end face of the elevator lower connecting body (1) and the upper end face of the drill rod (4), and the limiting block (6) is positioned on one side or two sides of the connecting plate (3); or the detachable anti-tilting device is an anti-rotation block (7) positioned between the upper end of the connecting plate (3) and the top wall of the connecting groove (2), and the anti-rotation block (7) is formed by butting two right-angle stop blocks (7-1) with inner arcs through stop pins (7-2).

3. The removable elevator anti-roll device of claim 2, wherein: the limiting block (6) or the anti-rotation block (7) is an elastic body or a rigid body.

4. The removable elevator anti-roll device of claim 1, wherein: the detachable anti-tilting device is a shaft locking device parallel to the axis of the hinged pin shaft (5), and the shaft locking device penetrates into the connecting groove (2) from the outside of the lower connector (1) of the elevator and is vertically inserted into the connecting plate (3).

5. The removable elevator anti-roll device of claim 4, wherein: the shaft locking device is a locking pin (8) or a unilateral bolt (9), the locking pin (8) penetrates through pin holes in the lower connector (1) of the elevator and the connecting plate (3) simultaneously, the unilateral bolt (9) is in threaded connection with a threaded through hole in the lower connector (1) of the elevator, and the inner end of the unilateral bolt (9) is inserted into a concave hole (9-1) corresponding to the unilateral bolt (9) in the connecting plate (3).

6. The removable elevator anti-roll device of claim 1, wherein: removable anti-tilt device is in embedded annular elasticity band (11) in annular groove (10) of the lower part preparation of connector (1) under the elevator, or annular rigidity clamp (12), annular rigidity clamp (12) are formed by two semicircle boards (12-1) butt joint, or annular rigidity clamp (12) are the jump ring.

7. The removable elevator anti-roll device of claim 1, wherein: the detachable anti-tilting device is characterized in that the hoop sleeve (13) at the lower part of the lower connector (1) of the elevator is wrapped, the inner side of the hoop sleeve (13) is tightly attached to the outer wall of the lower connector (1) of the elevator, the hoop sleeve (13) is formed by butting two semicircular hoop sleeves (13-1), the butting part of the two semicircular hoop sleeves (13-1) is fastened through a bolt and nut assembly, and a limiting table (13-2) is arranged inside the semicircular hoop sleeve (13-1) and inserted into the holes at the two ends of the hinge pin shaft (5).