CN219795165U - Disengaging gear of rotary disengaging gear - Google Patents

Abstract

The utility model provides a rotatory tripping device of ware, includes swivel head and lower swivel head, and upper swivel head and lower swivel head all cup joint on the center pole, and upper swivel head is fixed after the recess of upper swivel head tip and the boss meshing of release head tip, is provided with the spring that provides the elastic force of uncoupling for the two between upper swivel head and the lower swivel head. The device can release the release connector by only lifting the sucker rod without rotating the sucker rod, realizes the same release work energy as the conventional claw release connector, and is simple and reliable to operate.

Description

Disengaging gear of rotary disengaging gear

Technical Field

The utility model belongs to the technical field of a connector, and particularly relates to a rotary connector release device.

Background

The connector is an indispensable tool in the oil extraction process of an oil field, and the connector is used for connecting the plunger of the oil pump with the sucker rod, so that the connector plays an important role in the up-and-down action in the oil extraction operation. The existing disengaging device used on the oil extraction site is generally better, but with the continuous increase of the oil extraction operation requirement, the use frequency of the disengaging device is also increased, and the breaking of the butt joint claw in the disengaging device becomes an important factor of tool failure. In recent years, the proportion of broken butt joint claws in oil fields is about 15%. Thus leading to waste wells or production shutdowns and direct economic losses, and thus the development of claw-free high strength rotary disconnects.

The rotary disengaging device can be disengaged only by rotating the sucker rod when the rotary disengaging device is disengaged, but in reality, torque is difficult to be transmitted to the disengaging device positioned at the bottom end of the sucker rod due to the fact that the length of the sucker rod is too long (approximately 1000 meters), so that the disengaging device is difficult to disengage, and meanwhile, certain rebounding torque exists when the sucker rod is rotated at a wellhead, so that certain danger exists.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present utility model to provide a rotary disconnect device.

The utility model adopts the technical scheme that: the technical key point of the rotary connector disengaging device is that the rotary connector disengaging device comprises a short joint sleeved on a central rod, a release head connected with an oil pipe is sleeved outside the short joint, a boss is arranged at the end part of the release head, the boss is matched with a groove sleeved at the end part of an upper rotary head of the central rod, and the upper rotary head is fixed when the boss is meshed with the groove; the lower rotating head is connected to the central rod, the spring is sleeved on the central rod and is installed between the upper rotating head and the lower rotating head, the lower rotating head is in sliding fit with the connecting end of the upper rotating head, and the spring is stressed and compressed to enable the upper rotating head to abut against the upper step of the central rod.

In the scheme, the connecting end of the lower rotating head and the upper rotating head is spiral.

The beneficial effects of the utility model are as follows: the rotary disconnecting device comprises an upper rotating head and a lower rotating head, wherein the upper rotating head and the lower rotating head are sleeved on a central rod, a groove at the end part of the upper rotating head is fixed with a boss at the end part of a release head after being kneaded, and a spring for providing a disconnecting elastic force for the upper rotating head and the lower rotating head is arranged between the upper rotating head and the lower rotating head. The device can release the release connector by only lifting the sucker rod without rotating the sucker rod, realizes the same release work energy as the conventional claw release connector, and is simple and reliable to operate.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a rotary disconnect device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an upper rotating head according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a lower rotating head according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a center pole structure in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating connection of upper and lower rotary joints according to an embodiment of the present utility model;

the numbers in the figures are illustrated as follows: the device comprises a short joint 1, an upper rotating head 2, a release head 3, a central rod 4, a spring 5 and a lower rotating head 6.

Detailed Description

The foregoing objects, features, and advantages of the utility model will be more readily apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings 1 and detailed description.

The rotary connector disengaging gear comprises a release head 3, wherein the upper part of the release head 3 is connected with an oil pipe through threads, and the lower part of the release head is connected with an oil pump through threads. The release head 3 is internally provided with a short joint 1 fixedly connected with the central rod 4 through threads. The outside of the center rod 4 is sleeved with an upper rotating head 2 and a lower rotating head 6, one end of the upper rotating head 2 is connected to the upper end of the short section 1 through threads, and the lower rotating head 6 is fixed on the center rod 4 through threads. The spring 5 is sleeved on the central rod 4 and is fitted between the upper swivel head 2 and the lower swivel head 6, the lower swivel head 6 normally compressing the spring 5 a certain distance when fitted with the upper swivel head 2, causing the upper swivel head 2 to abut against the step E of the central rod 4. After the assembly is completed, the upper rotating head 2 and the lower rotating head 6 have the mutually inserted parts and the end surfaces have a certain space distance (see figure 5), so that the guiding function can be realized, a certain space can be ensured, the lower rotating head is ensured to have an effective rotating angle, and the rotary connector is disconnected. During the disengagement, the rotary clutch is disengaged by the elastic force of the spring 5 as the disengagement force.

The working principle of the rotary disconnect device in this embodiment is:

the tool is connected with the parts shown in figure 1, and the tool is butted after being put into a well to finish normal production. When the disengaging device is required to be disengaged, after the sucker rod connected to the upper part of the disengaging device is lifted up to enable the upper rotating head 2 to reach the position of the releasing head 3, the upper rotating head is fixed after the boss is meshed with the groove due to the fact that the groove is formed in the upper rotating head (see the middle blank of the boss at the position A in fig. 2) and the boss is formed in the releasing head (see the position D in fig. 4). At this time, the lower rotating head 6 moves leftwards together when the sucker rod is lifted up continuously; because the upper rotating head and the lower rotating head adopt a symmetrical double-screw meshing mode (see the position B in fig. 2 and the position C in fig. 3), and the upper rotating head is fixed, the lower rotating head moves leftwards and simultaneously generates rotary motion, and because the lower rotating head and the central rod are relatively integrated, the central rod synchronously rotates, so that the disengaging device rotates and is disengaged.

The tool has the characteristics of simplicity and reliability in operation.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (2)

1. The rotary disconnecting device is characterized by comprising a short joint (1) sleeved on a central rod (4), a release head (3) connected with an oil pipe is sleeved outside the short joint (1), a boss (D) is arranged at the end part of the release head (3), the boss (D) is matched with a groove sleeved at the end part of an upper rotating head (2) of the central rod (4), and the upper rotating head (2) is fixed when the boss (D) is meshed with the groove; the lower rotating head (6) is connected to the central rod (4), the spring (5) is sleeved on the central rod (4) and is arranged between the upper rotating head (2) and the lower rotating head (6), the lower rotating head (6) is in sliding fit with the connecting end of the upper rotating head (2), and the spring is stressed and compressed to enable the upper rotating head (2) to abut against an upper step of the central rod (4).

2. A rotary disconnect device as defined in claim 1, wherein the connection end of the lower swivel (6) and the upper swivel (2) is helical.