CN212003066U

CN212003066U - Anti-tilting elevator of rotary drilling rig

Info

Publication number: CN212003066U
Application number: CN202020598344.8U
Authority: CN
Inventors: 陈以田
Original assignee: Jiangsu Jianzhu Institute
Current assignee: Jiangsu Institute of Architectural Technology; Jiangsu Jianzhu Institute
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-24
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a dig rig soon and prevent inclining elevator belongs to and digs rig technical field soon. The utility model discloses an elevator lower clutch, the preparation has connecting groove in the middle of the elevator lower clutch lower extreme, and the upper end of drilling rod has the connecting plate to insert in the connecting groove and articulated through articulated shaft and elevator lower clutch, connecting groove is inside to be equipped with two prevent inclining the limiting plate and to cooperate in order to prevent connecting plate pivoted locking device with preventing inclining the limiting plate, it sets up to prevent inclining the limiting plate symmetry the both sides of tendency are rotated in can taking place of connecting plate, the one end of preventing inclining the limiting plate articulates connecting groove's upper portion, prevent inclining the limiting plate the other end with the lateral part of connecting plate closely laminates. The utility model discloses 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

Anti-tilting elevator of rotary drilling rig

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.

Disclosure of Invention

In order to overcome above-mentioned prior art's weak point, the utility model provides a dig rig soon and prevent inclining elevator 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: the utility model provides a dig tipper that prevents of rig soon, includes the elevator lower clutch, and the preparation has a connecting groove in the middle of the elevator lower clutch lower extreme, and the upper end of drilling rod has the connecting plate to insert in the connecting groove and articulated through articulated shaft and elevator lower clutch, connecting groove is inside be equipped with two prevent the limiting plate and cooperate in order to prevent connecting plate pivoted locking device with preventing the limiting plate that inclines, prevent that the limiting plate symmetry sets up the both sides of tendency of rotation can take place for the connecting plate, the one end of preventing the limiting plate that inclines articulates the upper portion of connecting groove, prevent the other end of limiting plate with the lateral part of connecting plate closely laminates.

The locking device is a concave-convex interlocking mechanism formed by locking convex parts and locking concave parts, the locking concave parts are symmetrically arranged on two sides of the connecting plate where the connecting plate tends to rotate, the locking convex parts are arranged on one side, facing the connecting plate, of the anti-tilting limiting plate, and the locking convex parts on the two sides are simultaneously embedded into the corresponding locking concave parts to form locking.

The shapes of the locking convex parts and the locking concave parts are hemispherical shapes, conical shapes, truncated cone shapes, prism shapes or a combination of any two shapes.

The locking convex part and/or the locking concave part are/is provided with magnetism.

The locking device comprises torsion springs arranged on the upper part of each anti-tilting limiting plate or the rotating shaft of the limiting plate.

The anti-tilting limiting plate is a strong magnetic plate, and the strong magnetic plate and the connecting plate are attracted to form the locking device.

The anti-tilting limiting plate is a straight plate, and the width of the anti-tilting limiting plate is equal to the thickness of the connecting plate.

The anti-tilting limiting plate is hinged in the connecting groove through a limiting plate rotating shaft, and a pin hole for the limiting plate rotating shaft to penetrate through is formed in the lower connector of the elevator.

The utility model has the advantages that: the utility model is provided with two anti-tilting limit plates inside the connecting groove and a locking device which is matched with the anti-tilting limit plates to prevent the connecting plates from rotating, the added anti-tilting limit plates and the locking mechanism can ensure that the elevator keeps vertical when the drilling machine works, the utility model can lock by utilizing the embedding of the shapes of the locking convex parts and the locking concave parts, and the locking mechanism is not stressed in the initial state; but the locking mechanism can be stressed to prevent the position from changing after the position is changed, and the elasticity and the magnetism can also be utilized to ensure that the anti-tilting limiting plate plays a limiting role, so that the elevator tilting phenomenon caused by the fact that the steel wire rope is lowered too long can be prevented, and the steel wire rope is ensured not to rotate along with the drill rod. Because prevent the articulated mounting means of inclining the limiting plate, the utility model discloses requirement when can also satisfying original drilling rod loading and unloading simultaneously, elevator lower clutch is whole when the atress is great when loading and unloading promptly can be rotatory around the articulated shaft to the elevator bears big bending moment when avoiding loading and unloading the drilling rod.

Drawings

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

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

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of an embodiment of the present invention with a torsion spring;

FIG. 5 is a schematic view of an embodiment of the ferromagnetic plate of the present invention;

fig. 6-11 are schematic structural views of different shapes of the locking convex part of the present invention.

In the figure, 1, a lower connector of an elevator, 2, a drill rod, 3, a connecting plate, 4, a hinge shaft, 5, a connecting groove, 6, an anti-tilting limiting plate, 7, a rotating shaft of the limiting plate, 7-1, pin holes, 8, locking convex parts, 9, locking concave parts, 10 and a torsion spring.

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.

The anti-inclination elevator of the rotary drilling rig comprises an elevator lower joint 1, a connecting groove 5 is formed in the middle of the lower end of the elevator lower joint 1, a connecting plate 3 is arranged at the upper end of a drill rod 2 and inserted into the connecting groove 5 and hinged to the elevator lower joint 1 through a hinge shaft 4, two anti-inclination limiting plates 6 and a locking device matched with the anti-inclination limiting plates 6 to prevent the connecting plate 3 from rotating are arranged in the connecting groove 5, the anti-inclination limiting plates 6 are symmetrically arranged on two sides of the connecting plate 3 where the rotation trend can occur, one end of each anti-inclination limiting plate 6 is hinged to the upper portion of the connecting groove 5, and the other end of each anti-inclination limiting plate 6 is tightly attached to the side portion of the connecting plate 3.

As an example, referring to fig. 1-3, the locking device is a male-female interlocking mechanism formed by locking protrusions 8 and locking recesses 9, the locking recesses 9 are symmetrically arranged on two sides of the connecting plate 3 where the tendency of rotation occurs, the locking protrusions 8 are arranged on the anti-roll limiting plate 6 on one side facing the connecting plate 3, and the locking protrusions 8 on two sides are simultaneously inserted into the corresponding locking recesses 9 to form locking. The principle is that the shape is embedded for locking, and a locking mechanism is not stressed in an initial state; but the locking mechanism is forced to resist this change in position after the change in position.

Further, referring to fig. 6-11, the shape of the locking protrusion 8 and the locking recess 9 may be hemispherical, conical, truncated cone, prism, or a combination of any two of the foregoing shapes.

Further, the locking convex part 8 and/or the locking concave part 9 can be provided with magnetism to enhance the adsorption force.

As an example, as shown in fig. 4, the locking device includes a torsion spring 10 provided on the upper portion of each anti-roll restriction plate 6 or the restriction plate rotation shaft 7.

As an embodiment, as shown in fig. 5, the anti-roll limiting plate 6 is a strong magnetic plate, and the strong magnetic plate and the connecting plate 3 are attracted to form the locking device. The strong magnetic plate is adsorbed on the drill rod connecting plate, and magnetic force and friction force generated due to the magnetic force can generate return-to-normal torque when the swing trend is met, so that the elevator inclination caused by the overlong lowering of the steel wire rope is prevented.

The anti-tilting limit plate 6 is a straight plate, and the width of the anti-tilting limit plate 6 is equal to the thickness of the connecting plate 3.

The anti-tilting limiting plate 6 is hinged in the connecting groove 5 through a limiting plate rotating shaft 7, and a pin hole 7-1 for the limiting plate rotating shaft 7 to penetrate through is formed in the elevator lower joint 1.

The utility model adds the anti-tilting limit plate 6 and the locking mechanism to ensure that the elevator keeps vertical when the drilling machine works, the utility model can lock by utilizing the embedding of the shapes of the locking convex part 8 and the locking concave part 9, and the locking mechanism is not stressed in the initial state; but the locking mechanism can be stressed to prevent the position from changing after the position is changed, and the elasticity and the magnetism can also be utilized to ensure that the anti-tilting limiting plate plays a limiting role, so that the elevator tilting phenomenon caused by the fact that the steel wire rope is lowered too long can be prevented, and the steel wire rope is ensured not to rotate along with the drill rod. Because prevent the articulated mounting means of inclining the limiting plate, the utility model discloses requirement when can also satisfying original drilling rod loading and unloading simultaneously, elevator lower clutch is whole when the atress is great when loading and unloading promptly can be rotatory around the articulated shaft to the elevator bears big bending moment when avoiding loading and unloading the drilling rod.

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 dig the rig soon and prevent inclining elevator, includes elevator lower clutch (1), and the preparation has connecting groove (5) in the middle of elevator lower clutch (1) lower extreme, and there is connecting plate (3) to insert in the upper end of drilling rod (2) connecting groove (5) and articulated through articulated shaft (4) and elevator lower clutch (1), its characterized in that: connecting groove (5) are inside to be equipped with two and to prevent inclining limiting plate (6) and cooperate in order to prevent connecting plate (3) pivoted locking device with preventing inclining limiting plate (6), it sets up to prevent inclining limiting plate (6) symmetry the both sides of tendency take place to rotate of connecting plate (3), the one end of preventing inclining limiting plate (6) articulates the upper portion of connecting groove (5), the other end of preventing inclining limiting plate (6) with the lateral part of connecting plate (3) closely laminates.

2. The anti-tilt elevator of the rotary drilling rig according to claim 1, characterized in that: the locking device is a concave-convex interlocking mechanism formed by locking convex parts (8) and locking concave parts (9), the locking concave parts (9) are symmetrically arranged on two sides of the connecting plate (3) where a rotation trend can occur, the locking convex parts (8) are arranged on one side of the anti-tilting limiting plate (6) facing the connecting plate (3), and the locking convex parts (8) on the two sides are simultaneously embedded into the corresponding locking concave parts (9) to form locking.

3. The anti-tilt elevator of the rotary drilling rig according to claim 2, characterized in that: the shapes of the locking convex parts (8) and the locking concave parts (9) are hemispheric or conical or truncated cone or prism or the combination of any two shapes.

4. The anti-tilt elevator of the rotary drilling rig according to claim 2, characterized in that: the locking convex part (8) and/or the locking concave part (9) are magnetic.

5. The anti-tilt elevator of the rotary drilling rig according to claim 1 or 2, characterized in that: the locking device comprises torsion springs (10) arranged on the upper part of each anti-tilting limit plate (6) or the limiting plate rotating shaft (7).

6. The anti-tilt elevator of the rotary drilling rig according to claim 1 or 2, characterized in that: the anti-tilting limit plate (6) is a strong magnetic plate, and the strong magnetic plate and the connecting plate (3) are attracted to form the locking device.

7. The anti-tilt elevator of the rotary drilling rig according to claim 1 or 2, characterized in that: the anti-tilting limit plate (6) is a straight plate, and the width of the anti-tilting limit plate (6) is equal to the thickness of the connecting plate (3).

8. The anti-tilt elevator of the rotary drilling rig according to claim 1 or 2, characterized in that: the anti-tilting limiting plate (6) is hinged in the connecting groove (5) through a limiting plate rotating shaft (7), and a pin hole (7-1) for the limiting plate rotating shaft (7) to penetrate through is formed in the elevator lower joint (1).