A quick-release device for replacing the steel wire rope of a low-altitude oil pumping unit

Abstract

This utility model belongs to the field of petroleum engineering technology and discloses a quick disassembly device for replacing the steel wire rope of a pumping unit at low altitude. It includes a support plate, an inclined plate fixedly provided on the upper end face of the support plate, and a locking sleeve fixedly provided on the right end face of the inclined plate. The locking sleeve has a circular groove and a through hole inside. By using the inclined plate and the locking sleeve, the risk of traditional replacement requiring climbing to an 8-meter height is avoided from the structural source. Ground operation can be achieved without the assistance of a crane, directly reducing the risk of falling from height. The circular groove and through hole provide precise installation and positioning for subsequent locking components, which meets the "standardized and procedural" management requirements of oilfield equipment and avoids operational errors caused by structural misalignment.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum engineering technology, specifically a quick disassembly device for replacing the steel wire rope of a pumping unit at low altitude. Background Technology

[0002] In oil extraction, the maintenance and replacement of pumping unit wire ropes are common operations. As the production time of pumping wells increases, the wire ropes at the bottom of the pumping unit's head will naturally wear out due to wear. Currently, maintenance requires workers to work at height to remove the nuts, lift the newly fabricated wire rope onto the head, place the new wire rope into the wire rope groove on the head, and then connect the suspension device at the bottom of the wire rope to the polished rod of the well. After readjusting the anti-surge distance, the well can resume normal pumping production. This process presents problems such as workers working at height, operational safety, operational complexity, and high labor intensity, and in some cases, it is difficult to achieve rapid disassembly. Therefore, designing a low-altitude, rapid disassembly device for replacing pumping unit wire ropes is of great significance.

[0003] Replacing the steel wire rope of an oil pumping unit requires workers to climb to the high beam (usually >5 meters), which poses a risk of falling. The disassembly process requires manually releasing the rope clamps and tension, which takes a long time (2-5 hours) and is prone to causing the steel wire rope to rebound and injure people. The disassembly tools are carried at high altitudes, the operating surface is narrow at high altitudes, the tools are difficult to lift and are easy to fall, and the labor intensity is high.

[0004] Therefore, a quick disassembly device for replacing the steel wire rope of an oil pumping unit at low altitude is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a quick disassembly device for replacing the steel wire rope of a low-altitude oil pumping unit, which has the advantages of structural stability, simple operation, versatility, and safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick disassembly device for replacing the steel wire rope of a pumping unit at low altitude, comprising a support plate, an inclined plate fixedly mounted on the upper end face of the support plate, a locking sleeve fixedly mounted on the right end face of the inclined plate, a circular groove and a through hole inside the locking sleeve, thereby avoiding the risks of traditional replacement requiring climbing to an 8-meter height from the structural source through the inclined plate and the locking sleeve, enabling ground operation without the need for a crane, directly reducing the risk of falls from height, a cylinder slidably mounted inside the circular groove, an elastic pin fixedly mounted on the front end face of the cylinder, and the elastic pin penetrating through the through hole, thereby achieving a locking or unlocking function through the elastic pin and the through hole, which helps to improve the efficiency and convenience of replacing the steel wire rope of the pumping unit, a compression spring fixedly mounted on the front end face of the cylinder, and the compression spring fixedly mounted on the locking sleeve, and a rectangular block fixedly mounted on the rear end face of the cylinder. By adopting the above technical solution, the compression spring enables the cylinder to slide within the circular groove with elastic buffering and reset functions.

[0007] Preferably, the front end face of the elastic pin is provided with a circular hole, a positioning nut is fixedly provided inside the circular hole, and a screw is spirally provided on the right end of the positioning nut, with the screw penetrating through the circular hole.

[0008] By adopting the above technical solution, the precise positioning and fixing of the elastic pin shaft is achieved through screws and positioning nuts.

[0009] Preferably, a pull ring is fixedly provided on the outside of the screw, and the pull ring is fitted with the elastic pin. A second round hole is provided inside the pull ring, and the screw passes through the second round hole.

[0010] By adopting the above technical solution, the movement of the screw can be easily controlled by pulling the pull ring, thereby realizing the operation of the elastic pin.

[0011] Preferably, a pressure shaft is provided through the interior of the inclined plate, a fixing cover is fixedly provided on the left end face of the pressure shaft, a square groove is provided inside the fixing cover and the square groove is fitted to the rectangular block, and a steel wire rope alloy steel lock tongue pressure plate is fixedly provided on the outside of the pressure shaft.

[0012] By adopting the above technical solution, the steel wire rope can be effectively fixed and disassembled through the pressure shaft, steel wire rope alloy steel locking tongue pressure plate.

[0013] Preferably, the upper end face of the support plate is fixedly provided with an inclined plate two, and the pressure shaft is connected through the inclined plate two, and the left end face of the inclined plate two is fixedly provided with a fixing circle.

[0014] By adopting the above technical solution and fixing the pressure shaft with a fixed circle, the overall stability and reliability of the device are further enhanced, ensuring that the device can accurately complete various operations during operation.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model avoids the risks of traditional replacement operations that require climbing to an 8-meter height using an inclined plate and locking sleeve, thus eliminating the need for cranes for ground operations and directly reducing the risk of falls from heights. The circular groove and through hole provide precise installation and positioning for subsequent locking components, meeting the "standardized and procedural" management requirements of oilfield equipment and avoiding operational errors caused by structural misalignment.

[0017] 2. This utility model ensures that the cylinder can automatically return to its original position under the action of the spring after the operation is completed, thus preparing for the next operation. This improves the ease of use and work efficiency of the device. The screws and positioning nuts make it easy to adjust or replace the elastic pin when needed, reducing the maintenance difficulty and cost of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the circular groove of this utility model;

[0020] Figure 3 This is a schematic diagram of the mounting structure of the pressure shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the fixed circle of this utility model.

[0022] In the diagram: 1. Support plate; 2. Pressure shaft; 3. Steel wire rope alloy steel lock tongue pressure plate; 4. Elastic pin; 401. Round hole one; 402. Screw; 403. Positioning nut; 5. Locking sleeve; 501. Round groove; 502. Through hole; 6. Pull ring; 601. Round hole two; 7. Compression spring; 8. Cylinder; 801. Rectangular block; 9. Inclined plate one; 10. Fixing cover; 1001. Square groove; 11. Fixing circle; 12. Inclined plate two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The following describes an embodiment of this utility model based on its overall structure.

[0025] like Figures 1 to 4 As shown, this utility model provides a quick disassembly device for replacing the steel wire rope of a low-altitude oil pumping unit, including a support plate 1. An inclined plate 9 is fixedly mounted on the upper end face of the support plate 1. A locking sleeve 5 is fixedly mounted on the right end face of the inclined plate 9. A circular groove 501 and a through hole 502 are formed inside the locking sleeve 5. A cylinder 8 is slidably mounted inside the circular groove 501. An elastic pin 4 is fixedly mounted on the front end face of the cylinder 8, and the elastic pin 4 passes through the through hole 502. A compression pin is fixedly mounted on the front end face of the cylinder 8. Spring 7, and compression spring 7 is fixedly set with locking sleeve 5. Rectangular block 801 is fixedly set on the rear end face of cylinder 8. Through inclined plate 9 and locking sleeve 5, the risk of traditional replacement that requires climbing to 8 meters high for donkey head operation is avoided from the structural root. Ground operation can be achieved without the assistance of crane, directly reducing the risk of falling from height. Through circular groove 501 and through hole 502, precise installation positioning is provided for subsequent locking components, which meets the "standardized and procedural" management requirements of oilfield equipment and avoids operational errors caused by structural misalignment.

[0026] In this embodiment, a cylinder 8 is slidably provided inside the circular groove 501. An elastic pin 4 is fixedly provided on the front end face of the cylinder 8, and the elastic pin 4 is connected through the through hole 502. Through the elastic pin 4 and the through hole 502, a certain locking or unlocking function is realized, which helps to improve the efficiency and convenience of replacing the steel wire rope of the oil pumping unit.

[0027] The front end face of the cylinder 8 is fixedly provided with a compression spring 7, and the compression spring 7 is fixedly provided with a locking sleeve 5. The rear end face of the cylinder 8 is fixedly provided with a rectangular block 801. Through the compression spring 7, the cylinder has elastic buffering and reset functions when sliding in the circular groove 501.

[0028] The front end face of the elastic pin 4 has a circular hole 401. A positioning nut 403 is fixedly installed inside the circular hole 401. A screw 402 is screwed on the right end of the positioning nut 403, and the screw 402 passes through the circular hole 401. The screw 402 and the positioning nut 403 are used to achieve precise positioning and fixation of the elastic pin 4.

[0029] A pull ring 6 is fixed on the outside of the screw 402, and the pull ring 6 is fitted with the elastic pin 4. A second round hole 601 is opened inside the pull ring 6, and the screw 402 passes through the second round hole 601. By pulling the pull ring 6, the movement of the screw 402 can be easily controlled, thereby realizing the operation of the elastic pin 4.

[0030] The inside of the inclined plate 9 is provided with a pressure shaft 2. The left end face of the pressure shaft 2 is fixedly provided with a fixing cover 10. The inside of the fixing cover 10 is provided with a square groove 1001, and the square groove 1001 is fitted with the rectangular block 801. The outside of the pressure shaft 2 is fixedly provided with a wire rope alloy steel locking tongue pressure plate 3. Through the pressure shaft 2 and the wire rope alloy steel locking tongue pressure plate 3, the wire rope can be effectively fixed and disassembled.

[0031] An inclined plate 12 is fixedly provided on the upper end face of the support plate 1, and the pressure shaft 2 is connected through the inclined plate 12. A fixing circle 11 is fixed on the left end face of the inclined plate 12. The pressure shaft 2 is fixed by the fixing circle 11, which further enhances the overall stability and reliability of the device and ensures that the device can accurately complete various operations during operation.

[0032] Working principle and process of a quick-release device for replacing steel wire ropes of oil pumping units at low altitudes:

[0033] Before disassembling the steel wire rope of the pumping unit, it is necessary to ensure that the entire device is in an operable state. Workers should check the integrity of each component, such as the support plate 1, inclined plate 9, locking sleeve 5, elastic pin 4, and compression spring 7, for damage or looseness. Simultaneously, confirm that the connections of small components such as the pull ring 6, screw 402, and positioning nut 403 are secure, and that the steel wire rope alloy steel locking tongue pressure plate 3 is correctly installed. Move the device to the position where the steel wire rope needs to be disassembled, allowing the steel wire rope to pass through the gap between the steel wire rope alloy steel locking tongue pressure plate 3 and the pressure shaft 2. At this point, the steel wire... The rope alloy steel locking tongue plate 3 serves to initially fix the wire rope, preventing it from shaking freely during disassembly. The worker holds the pull ring 6; since the pull ring 6 is connected to the elastic pin 4 via screw 402 and positioning nut 403, pulling the pull ring 6 outward will cause the elastic pin 4 to move along with it. The front end of the elastic pin 4 is fixed to the cylinder 8, which slides within the circular groove 501. During the pulling process, the compression spring 7 is compressed, storing elastic potential energy. When the elastic pin 4 is completely pulled out of the through hole 502, the pin is unlocked, creating conditions for subsequent disassembly work. With the removal of the elastic pin 4, the rectangular block 801 is no longer restricted by the elastic pin 4. Since the square groove 1001 inside the fixed cover 10 fits snugly against the rectangular block 801, the pressure shaft 2 can be pushed. The pressure shaft 2 passes through inclined plate 9 and inclined plate 12. During the pushing process, it moves along its axial direction, gradually separating from inclined plate 9 and inclined plate 12. Simultaneously, the steel wire rope alloy steel locking tongue plate 3, which is fixedly connected to the pressure shaft 2, also moves, releasing further fixation of the steel wire rope. When the pressure shaft 2 is completely separated from inclined plate 9 and inclined plate 12, the steel wire rope is no longer subject to the device's fixing action. At this point, the staff can easily remove the wire rope from the device, completing the disassembly of the oil pump wire rope. After the wire rope is disassembled, if the device needs to be used again, it needs to be reset. First, the pressure shaft 2 is reinserted into the inclined plate 9 and inclined plate 12, so that the rectangular block 801 enters the square groove 1001 again. Then, the pull ring 6 is released, the compressed spring 7 releases its elastic potential energy, and pushes the cylinder 8 to slide in the circular groove 501, so that the elastic pin 4 is reinserted into the through hole 502, completing the reset of the device and preparing it for the next wire rope disassembly.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release device for replacing the steel wire rope of a low-altitude oil pumping unit, comprising a support plate (1), characterized in that: The upper end face of the support plate (1) is fixedly provided with an inclined plate (9), and the right end face of the inclined plate (9) is fixedly provided with a locking sleeve (5). The locking sleeve (5) has a circular groove (501) inside and a through hole (502) inside. A cylinder (8) is slidably provided inside the circular groove (501). An elastic pin (4) is fixedly provided on the front end face of the cylinder (8), and the elastic pin (4) and the through hole (502) are connected through each other. A compression spring (7) is fixedly provided on the front end face of the cylinder (8), and the compression spring (7) is fixedly provided with the locking sleeve (5). A rectangular block (801) is fixedly provided on the rear end face of the cylinder (8).

2. The quick dismounting device for low-height replacement of a pumping unit wire rope according to claim 1, characterized in that The front end face of the elastic pin (4) is provided with a circular hole (401), and a positioning nut (403) is fixedly provided inside the circular hole (401). A screw (402) is spirally provided on the right end of the positioning nut (403), and the screw (402) passes through the circular hole (401).

3. The quick dismounting device for low-height replacement of a pumping unit wire rope according to claim 2, characterized in that A pull ring (6) is fixedly provided on the outside of the screw (402), and the pull ring (6) is fitted with the elastic pin (4). A second round hole (601) is provided inside the pull ring (6), and the screw (402) passes through the second round hole (601).

4. The quick dismounting device for low-height replacement of a pumping unit wire rope according to claim 1, characterized in that The inclined plate (9) has a pressure shaft (2) running through its interior. A fixing cover (10) is fixedly provided on the left end face of the pressure shaft (2). A square groove (1001) is opened inside the fixing cover (10), and the square groove (1001) is fitted with a rectangular block (801). A steel wire rope alloy steel lock tongue pressure plate (3) is fixedly provided on the outside of the pressure shaft (2).

5. The quick disconnect device for low altitude replacement of a pumping unit wireline of claim 1, wherein: The upper end face of the support plate (1) is fixedly provided with a second inclined plate (12), and the pressure shaft (2) and the second inclined plate (12) are connected through each other. The left end face of the second inclined plate (12) is fixedly provided with a fixing circle (11).

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