Beam hanger of oil pumping unit

Abstract

The utility model discloses a beam hanger of an oil pumping unit, and relates to the technical field of oil pumping units, in particular to the beam hanger of the oil pumping unit, which is mounted on a polish rod of the oil pumping unit, is used for suspending a steel wire rope of the oil pumping unit and comprises a metal body, the upper portion of the metal body is in threaded connection with a polish rod slip, and the polish rod slip is fixedly mounted at the lower end of the polish rod. Rotating heads are rotationally arranged at the two end parts of the metal body; through the arrangement of the rotating head and the metal body, when the oil pumping unit continuously works, the steel wire rope is repeatedly stretched to generate torsion, the steel wire rope is twisted, the steel wire rope is twisted to drive the rotating head located at the upper end of the steel wire rope to rotate, the rotating head rotates on the metal body through the bearing to release the torsion, and the purpose of preventing the steel wire rope from being twisted is achieved. Meanwhile, the steel wire rope can be fixed to a metal body through the rotating head.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumping units, in particular to an oil pumping unit rope hanger. Background Art

[0002] The rope hanger used on site has only one set of rope hanger mechanism connected to the bare rod for oil production. The stress of the bare rod is concentrated at the square clip of the rope hanger mechanism. Due to the long-term reciprocating movement of the bare rod and the sucker rod, the connection between the bare rod and the square clip is broken, which can easily cause the bare rod to fall into the oil well. In addition, during the production process of the pumping unit, due to the spiral of the wire rope and the alternating load of the sucker rod, the wire rope and the rope hanger often twist, causing the well to stop or even the sucker rod to be disengaged and lying in the well, seriously affecting the normal production of the oil well.

[0003] In the published Chinese patent application, the publication number is CN111456650B, and the patent name is: A method for connecting a pumping unit suspension rope. Although the inner wall of the light rod hole is polished to be smooth, the friction between the light rod hole and the light rod is increased, making the connection between the light rod hole and the light rod more firmly. The light rod can be further clamped and fixed by setting a fastening ring and an inclined reinforcing rod, and the clamping and fixing effect is better when combined with the first square clip and the second square clip. By setting a fixed steel sleeve corresponding to the wire rope on the upper side wall of the left part of the first connecting plate, the wire rope can be prevented from twisting when driving the light rod to move up and down, and the well can be stopped or the pumping rod can be disengaged and lie in the well. However, in the specific implementation of this prior art, the fastening ring and the inclined reinforcing rod are installed on the outer wall of the light rod, which is only used to assist in fixing the light rod. After the light rod is separated from the first connecting plate, the fastening ring and the inclined reinforcing rod are difficult to apply tension to the outer wall of the light rod, and the fixing effect of the light rod is not good. The steel wire rope is composed of multiple strands of steel wire ropes that are compounded through a knob. After the steel wire rope is repeatedly stretched by gravity, the steel wire rope will twist. The existing technology uses a fixed steel sleeve to fix the steel wire rope, which cannot release the torque of the steel wire rope, and the problem of steel wire rope twisting still exists.

[0004] In summary, in order to solve the problems in the prior art that the bare rod is easy to detach from the rope hanger and the wire rope is twisted, the present application is specially proposed to solve the problem. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a pumping unit rope hanger, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a pumping unit rope hanger, which is installed on the pumping unit's bare rod and is used to suspend the pumping unit's wire rope, comprising a metal body, a bare rod slip is threadedly connected to the upper part of the metal body, the bare rod slip is fixedly installed on the lower end of the bare rod, and both ends of the metal body are rotatably provided with a rotating head; the rotating head is inserted into the metal body, and at least one bearing is fixedly installed on the outer side wall of the rotating head, and the rotating head is rotatably connected to the metal body through the bearing; the upper end of the wire rope passes through the metal body, and the rotating head is fixedly installed to the upper end of the wire rope.

[0009] Optionally, the polished rod slip is in the shape of a hollow cylinder as a whole, and the outer wall of the polished rod slip is engraved with threads; the polished rod slip is composed of two semi-ring bodies fixedly installed by bolts.

[0010] Optionally, a clamping groove is provided on the outer wall of the rotating head along the circumference, a clearance groove is provided in the metal body near the clamping groove, and a semi-annular clamping block is placed on the metal body at the clearance groove.

[0011] Optionally, a first bolt is threadedly connected to the metal body, one end of which is rotatably connected to a semi-annular block. The first bolt pushes the semi-annular block to move after rotating on the metal body, and the semi-annular block moves to the slot to limit the rotating head.

[0012] Optionally, the rotating head is composed of two semi-ring bodies fixedly installed by bolts, and a plurality of protrusions are engraved on the inner wall of the rotating head.

[0013] (III) Beneficial effects

[0014] The utility model provides a pumping unit rope hanger, which has the following beneficial effects:

[0015] 1. The oil pumping unit rope hanger is composed of two semi-ring bodies through the polished rod slip, which are clamped and buckled at the lower end of the polished rod, and the two semi-ring bodies are fixed and installed by bolts. The two semi-ring bodies constitute a cylindrical polished rod slip, and the polished rod slip is threadedly connected with the metal body through its outer wall thread, so as to achieve the fixed installation between the polished rod and the rope hanger. Since the polished rod slip is arranged on the metal body through the metal body, the polished rod expands outward after being pulled, and the polished rod pushes the polished rod slip back to be close to the metal body, so that the metal body and the polished rod slip are tightly connected, so as to achieve the purpose of preventing the polished rod from being separated from the rope hanger.

[0016] 2. This kind of oil pump rope hanger, through the setting of the rotating head and the metal body, when the oil pump continues to work, the wire rope is repeatedly stretched to generate torque, the wire rope is twisted, and the twisting of the wire rope drives the rotating head located at the upper end thereof to rotate. The rotating head rotates on the metal body through the bearing to release the torque, thereby achieving the purpose of avoiding the twisting of the wire rope. At the same time, the rotating head can fix the wire rope on the metal body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a rope suspension device for an oil pumping unit according to the utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of a rope suspension device for an oil pumping unit according to the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of a rope suspension device for an oil pumping unit according to the utility model;

[0021] Figure 4 The utility model is a three-dimensional structural schematic diagram of a semi-ring-shaped clamping block of a rope suspension device of an oil pumping unit.

[0022] In the figure: 1, metal body; 2, steel wire rope; 3, bare rod; 4, bare rod slip; 5, rotating head; 501, convex point; 6, first bolt; 7, semi-annular block; 8, clearance groove; 9, bearing. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a pumping unit rope hanger, which is installed on the pumping unit polished rod 3 and is used to suspend the pumping unit wire rope 2, including a metal body 1, the upper part of the metal body 1 is threadedly connected with a polished rod slip 4, the polished rod slip 4 is fixedly installed at the lower end of the polished rod 3, and both ends of the metal body 1 are rotatably provided with a rotating head 5. The rotating head 5 is inserted into the metal body 1, and at least one bearing 9 is fixedly installed on the outer side wall of the rotating head 5, and the rotating head 5 is rotatably connected to the metal body 1 through the bearing 9. The upper end of the wire rope 2 passes through the metal body 1, and the rotating head 5 is fixedly installed with the upper end of the wire rope 2.

[0026] The pumping unit rope suspension device shown in the present application is installed on the pumping unit during implementation, specifically installed at the suspension end of the pumping unit close to the wellhead. The polished rod slip 4 is used to fix the polished rod 3 and the metal body 1 so that the two are tightly connected together. The rotating head 5 is used to fix the wire rope 2 and the metal body 1 so that the two are tightly connected together.

[0027] Specifically, the polished rod slip 4 is in the shape of a hollow cylinder as a whole, and threads are engraved on the outer wall of the polished rod slip 4. The polished rod slip 4 is composed of two semi-ring bodies fixedly installed by bolts.

[0028] Among them, the polished rod slip 4 is composed of two semi-ring bodies, which are clamped and buckled at the lower end of the polished rod 3, and the two semi-ring bodies are fixed and installed by bolts. The two semi-ring bodies constitute a polished rod slip 4 that is an integral cylindrical body. The polished rod slip 4 is threadedly connected with the metal body 1 through its outer wall thread, thereby realizing the fixed installation between the polished rod 3 and the rope hanger. Since the polished rod slip 4 is penetrated and arranged on the metal body 1, the polished rod 3 expands outward after being subjected to tension, and the polished rod 3 pushes the polished rod slip 4 back to be close to the metal body 1, so that the metal body 1 and the polished rod slip 4 are tightly connected, thereby achieving the purpose of preventing the polished rod 3 from being separated from the rope hanger.

[0029] Specifically, a clamping groove is provided on the outer wall of the rotating head 5 along the circumference, a clearance groove 8 is provided in the metal body 1 and near the clamping groove, and a semi-annular clamping block 7 is placed on the metal body 1 and located at the clearance groove 8 .

[0030] Among them, the semi-annular block 7 prevents the semi-annular block 7 from being in the giving way groove 8, and the semi-annular block 7 can slide into the slot of the rotating head 5. The semi-annular block 7 limits the rotating head 5 through the slot to prevent the rotating head 5 from separating from the metal body 1, so that the rotating head 5 can always be on the metal body 1.

[0031] Specifically, a first bolt 6 is threadedly connected to the metal body 1, and one end of the first bolt 6 is rotatably connected to the semi-annular block 7. After rotating on the metal body 1, the first bolt 6 pushes the semi-annular block 7 to move, and when the semi-annular block 7 moves to the slot, it limits and fixes the rotating head 5.

[0032] The first bolt 6 is used to drive the semi-annular clamping block 7 to move by rotating. When the first bolt 6 is screwed into the metal body 1, the first bolt 6 presses the semi-annular clamping block 7 to move the semi-annular clamping block 7 into the clamping groove of the rotating head 5. The semi-annular clamping block 7 limits the rotating head 5 through the clamping groove to prevent the rotating head 5 from being separated from the metal body 1, so that the rotating head 5 can always be on the metal body 1.

[0033] Specifically, the rotating head 5 is composed of two semi-ring bodies fixedly installed by bolts, and a plurality of protrusions 501 are engraved on the inner side wall of the rotating head 5 .

[0034] Among them, the two semi-ring bodies are clamped and buckled on the upper end of the steel wire rope 2, and the two semi-ring bodies are fixed and installed by bolts, and the two semi-ring bodies constitute a rotating head 5. Each convex point 501 on the inner wall of the rotating head 5 can strengthen the friction between the rotating head 5 and the steel wire rope 2, improve the clamping effect of the two semi-ring bodies on the steel wire rope 2, and the two semi-ring bodies clamp and fix the steel wire rope 2. After the two semi-ring bodies constitute the rotating head 5, the rotating head 5 is inserted into the installation groove of the metal body 1, and the installation groove of the metal body 1 limits and fixes the rotating head 5.

[0035] During installation, the two half ring bodies constituting the polished rod slip 4 are clamped and buckled at the lower end of the polished rod 3, and the two half ring bodies are fixedly installed by bolts. The two half ring bodies constitute the polished rod slip 4 and also complete the fixed connection of the polished rod slip 4 to the polished rod 3. Thereafter, the polished rod slip 4 is threadedly connected to the metal body 1 to complete the fixed installation of the polished rod slip 4 and the metal body 1.

[0036] The two steel wire ropes 2 penetrate the metal body 1 from bottom to top respectively. The bearing 9 is sleeved on the upper end of the steel wire rope 2, and the two semi-ring bodies constituting the rotating head 5 are clamped and buckled on the steel wire rope 2. The two semi-ring bodies are fixedly installed together by bolts. While the two semi-ring bodies constitute the rotating head 5, the rotating head 5 and the steel wire rope 2 are also fixedly connected. Then, the bearing 9 is installed at the lower end of the rotating head 5, and thereafter, the rotating head 5 is inserted into the mounting groove of the metal body 1. The first bolt 6 is rotated, and the first bolt 6 pushes the semi-annular block 7 to move toward the side where the slot is located. When the semi-annular block 7 is stuck in the slot, the semi-annular block 7 limits the rotating head 5. The semi-annular block 7 is only used to limit the rotating head 5 to prevent the rotating head 5 from detaching from the metal body 1, and does not affect the rotation of the rotating head 5 on the metal body 1, that is, it does not affect the torque release requirement of the rotating head 5.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pumping unit rope hanger, which is installed on a pumping unit polished rod (3) and is used to suspend a pumping unit wire rope (2), characterized in that: It comprises a metal body (1), the upper part of the metal body (1) is threadedly connected with a polished rod slip (4), the polished rod slip (4) is fixedly installed on the lower end of the polished rod (3), and both ends of the metal body (1) are rotatably provided with a rotating head (5); The rotating head (5) is inserted into the metal body (1), and at least one bearing (9) is fixedly mounted on the outer wall of the rotating head (5), and the rotating head (5) is rotatably connected to the metal body (1) via the bearing (9); the upper end of the steel wire rope (2) passes through the metal body (1), and the rotating head (5) is fixedly mounted to the upper end of the steel wire rope (2).

2. The oil pumping unit rope hanger according to claim 1, characterized in that: The polished rod slip (4) is in the shape of a hollow cylinder as a whole, and the outer wall of the polished rod slip (4) is engraved with threads; the polished rod slip (4) is composed of two semi-ring bodies fixedly installed by bolts.

3. The oil pumping unit rope hanger according to claim 1, characterized in that: The outer wall of the rotating head (5) is provided with a clamping groove along the circumference, a clearance groove is provided in the metal body (1) and near the clamping groove, and a semi-annular clamping block (7) is placed on the metal body (1) and at the clearance groove (8).

4. The oil pumping unit rope hanger according to claim 3, characterized in that: A first bolt (6) is threadedly connected to the metal body (1), one end of the first bolt (6) being rotatably connected to a semi-annular clamping block (7), and the first bolt (6) pushes the semi-annular clamping block (7) to move after being rotated on the metal body (1), and when the semi-annular clamping block (7) moves to the clamping groove, it limits and clamps the rotating head (5).

5. The oil pumping unit rope hanger according to claim 1, characterized in that: The rotating head (5) is composed of two semi-ring bodies fixedly mounted by bolts, and a plurality of convex points (501) are engraved on the inner side wall of the rotating head (5).

Images