CN212671593U

CN212671593U - Hinge assembly

Info

Publication number: CN212671593U
Application number: CN202021488152.8U
Authority: CN
Inventors: 王春生; 李云勇; 韩遇林
Original assignee: Hebei Lisen Petroleum Machinery Co ltd
Current assignee: Hebei Lisen Petroleum Machinery Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-03-09
Anticipated expiration: 2030-07-25

Abstract

The utility model discloses a hinge assembly, including female joint, bulb and male joint, the cooperation bulb has seted up the pendulum chamber in the female joint, the upper end rotatable setting of bulb is in the pendulum chamber, the upper end of male joint is installed at the lower extreme of bulb, the lower part of male joint is provided with the ladder face, and the first ladder face cooperation lead screw drilling tool of male joint lower extreme is provided with first installation screw thread, and the upper segment spiro union of first ladder face has first reducing sleeve, and the outer lane of first reducing sleeve is provided with second installation screw thread, the spiro union has second reducing sleeve on the second ladder face, and the outer lane of second reducing sleeve is provided with third installation screw thread; the utility model discloses be provided with a plurality of reducing covers on public joint, can be connected with the screw rod drilling tool with the lower extreme of the rotatory first step face of corresponding reducing cover when the installation bore of screw rod drilling tool is different, avoid the hinge assembly of reserve multiple specification and cause the wasting of resources, also made things convenient for the operation of changing the specification.

Description

Hinge assembly

Technical Field

The utility model relates to a screw rod drilling tool technical field especially relates to an articulated subassembly.

Background

The screw drilling tool is a positive displacement downhole power drilling tool which takes drilling fluid as power and converts the pressure energy of the fluid into mechanical energy. The guide screw drilling tool is used for deflecting the drilling tool, in order to drill a well with a certain inclination and a certain direction and control the track of the well, the guide screw drilling tool has a certain curvature, a universal shaft shell of the guide screw drilling tool is designed to be a curved shell, the curvature of the guide screw drilling tool is generally 0-3 degrees, and a certain deflecting rate requirement is met; the existing screw drilling tool has various dimensions, the upper end thread opening diameters of guide screw drilling tools with different dimensions are different, and the lower end of the hinge assembly is required to be provided with different mounting threads when the guide screw drilling tool is connected with the hinge assembly, so that the hinge assemblies of various types are required to be prepared for standby, resources are wasted, and certain trouble is brought when the hinge assemblies are replaced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide an articulated subassembly to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hinge assembly comprises a square cabin body and a hinge assembly, wherein the square cabin body comprises a female joint, a ball head and a male joint, a swing cavity is formed in the female joint in a matched mode with the ball head, the upper end of the ball head is rotatably arranged in the swing cavity, the upper end of the male joint is arranged at the lower end of the ball head, the lower end of the male joint is arranged at the upper end of a guide screw drilling tool in a matched mode, a stepped surface is arranged at the lower portion of the male joint, a first stepped surface at the lowest end of the male joint is provided with a first mounting thread in a matched mode with the guide screw drilling tool, the upper section of the first stepped surface is in threaded connection with a first reducing sleeve, the outer ring of the first reducing sleeve and the outer ring of a second stepped surface are provided with second mounting threads with the same specification, a second reducing sleeve is in; an annular groove is formed in the first step surface, and a retainer ring is detachably arranged in the annular groove.

Furthermore, the retaining collar comprises two semi-annular collar bodies, the inner diameter of each collar body is equal to that of the annular groove, and the two collar bodies are fixedly connected through bolts.

Furthermore, a third step surface which is arranged at the upper end of the second reducing sleeve is arranged on the male joint.

Further, the length of the first reducing sleeve and the length of the second reducing sleeve are equal to the distance from the annular groove to the bottom of the first step surface.

The above technical scheme of the utility model following beneficial effect has: the utility model discloses be provided with a plurality of reducing covers on public joint, can be connected with the screw rod drilling tool with the lower extreme of the rotatory first step face of corresponding reducing cover when the installation bore of screw rod drilling tool is different, avoid the hinge assembly of reserve multiple specification and cause the wasting of resources, also made things convenient for the operation of changing the specification.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention using a first reducing sleeve;

FIG. 3 is a cross-sectional view of an embodiment of the present invention using a second reducing sleeve;

fig. 4 is a side view of a retaining collar according to an embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely 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 invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the hinge assembly according to this embodiment includes a female joint 1, a ball head 2 and a male joint 3, a swing cavity 1a is formed in the female joint 1 in cooperation with the ball head 2, an upper end of the ball head 2 is rotatably disposed in the swing cavity 1a, an upper end of the male joint 3 is mounted at a lower end of the ball head 2, a lower end of the male joint 3 is mounted at an upper end of a guide screw drill in cooperation with the lower end of the guide screw drill, a stepped surface is disposed at a lower portion of the male joint 3, a first stepped surface 31 at a lowermost end of the male joint 3 is provided with a first mounting thread in cooperation with the guide screw drill, a first reducing sleeve 34 is screwed at an upper section of the first stepped surface 31, a second mounting thread of the same specification is disposed on an outer ring of the first reducing sleeve 34 and an outer ring of the second stepped surface 32, a second reducing sleeve 35 is screwed on the second; an annular groove 31a is formed in the first step surface 31, and a retainer ring 36 is detachably arranged in the annular groove 31 a;

when a small-sized screw drill is used, the small-sized screw drill can be directly screwed with the first mounting thread at the bottom of the first step surface 31, and the blocking sleeve ring 36 can be blocked at the upper end of the screw drill, so that the small-sized screw drill is convenient to screw; when a screw drill with a standard is used, the blocking sleeve ring 36 can be detached, the first reducing sleeve 34 is screwed downwards along the first step surface 31 until the first reducing sleeve 34 is positioned below the blocking sleeve ring 36, then the blocking sleeve ring 36 is installed, and the screw drill is screwed on the first reducing sleeve 34 to be matched with the second installation thread until the screw drill is pushed against the blocking sleeve ring 36 to be screwed tightly; when a large-specification screw drill is used, the retainer ring 36 is detached, the second reducing sleeve 35 is screwed downwards along the second step surface 32, then the second reducing sleeve 35 is screwed downwards along the thread on the outer side of the first reducing sleeve 34 until the second reducing sleeve 35 and the first reducing sleeve 34 are both positioned below the retainer ring 36, then the retainer ring 36 is mounted, and the screw drill is screwed on the second reducing sleeve 35 to be matched with the third mounting thread until the screw drill is pressed against the retainer ring 36 and screwed tightly; the first mounting thread, the second mounting thread and the third mounting thread have the same rotating direction.

Preferably, the retainer ring 36 includes two semi-annular ring bodies having an inner diameter equal to that of the annular groove 31a, and the two ring bodies are fixed by bolting.

Preferably, the male connector 3 is provided with a third step surface 33 which is arranged at the upper end of the second reducing sleeve 35 in a blocking manner, so that the second reducing sleeve 35 is prevented from moving upwards and being separated.

Preferably, the lengths of the first reducing sleeve 34 and the second reducing sleeve 35 are equal to the distance from the annular groove 31a to the bottom of the first step surface 31.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides an articulated assembly, includes female joint, bulb and male joint, the pendulum chamber has been seted up to cooperation bulb in the female joint, the rotatable setting in the pendulum chamber in upper end of bulb, the lower extreme at the bulb is installed to the upper end of male joint, the upper end at the lead screw drilling tool is installed in the lower extreme cooperation of male joint, its characterized in that: the lower part of the male joint is provided with a stepped surface, a first stepped surface at the lowest end of the male joint is matched with a guide screw drill to be provided with a first mounting thread, the upper section of the first stepped surface is in threaded connection with a first reducing sleeve, the outer ring of the first reducing sleeve and the outer ring of a second stepped surface are provided with second mounting threads with the same specification, the second stepped surface is in threaded connection with a second reducing sleeve, and the outer ring of the second reducing sleeve is provided with a third mounting thread; an annular groove is formed in the first step surface, and a retainer ring is detachably arranged in the annular groove.

2. A hinge assembly as claimed in claim 1, wherein: the retaining sleeve ring comprises two semi-annular ring bodies, the inner diameter of each ring body is equal to that of the annular groove, and the two ring bodies are fixedly connected through bolts.

3. A hinge assembly as claimed in claim 1, wherein: and a third step surface which is arranged at the upper end of the second reducing sleeve is arranged on the male joint.

4. A hinge assembly as claimed in claim 1, wherein: the length of the first diameter-changing sleeve and the length of the second diameter-changing sleeve are equal to the distance from the annular groove to the bottom of the first step surface.