A casing and anticorrosion tubing thread protector tightening machine

Abstract

This application provides a tightening machine for oil casing and anti-corrosion oil pipe thread protectors, including an oil casing movable base, a fixing unit, and a tightening unit. The tightening unit includes a rotating bracket, a rotating mechanism, a rotary motor, and a hydraulic cylinder. A sliding plate is slidably connected to the base plate. The rotating bracket includes an annular bracket, a first bracket, a second bracket, and a connecting bearing. The rotating mechanism includes a sleeve and a second clamping member. The annular bracket cooperates with the sleeve. The outer circumference of the sleeve is provided with gear patterns. A gear is provided at the output shaft of the rotary motor, and the gears cooperate with the gear patterns. This application uses a fixing pipe to fix the oil casing and uses the sleeve to fix the oil pipe thread protector. The controller controls the operation of the hydraulic cylinder and the rotary motor. The hydraulic cylinder drives the sliding plate to move towards the fixing pipe, and the rotary motor drives the oil pipe thread protector to rotate relative to the oil casing, automatically and intelligently tightening both. This method is suitable for tightening thread protectors of various oil casings.

Description

Technical Field

[0001] This application relates to the field of oil pipe thread protection technology, and more specifically, to a tightening machine for oil casing and anti-corrosion oil pipe thread protector. Background Technology

[0002] The content in this section provides only background information related to this application and may not constitute prior art.

[0003] Thread protectors, as protective devices specifically designed for loading, unloading, transportation, and storage, come in various forms, including caps and bushings. Their core function is to effectively isolate corrosive substances, abrasive factors, contaminants, and potential mechanical damage from the external environment by physically covering the thread surface in close contact. This ensures the integrity of the thread and a reliable seal at the connection. Thread protectors have a wide range of applications, spanning multiple key sectors such as oil and gas, chemical, machinery manufacturing, automotive manufacturing, and aerospace. In the entire lifecycle management of critical equipment such as drill pipes, tubing, and casing, from loading and unloading to transportation and long-term storage, thread protectors play an indispensable role. They not only effectively reduce equipment failures and downtime caused by thread damage but also significantly extend the service life of equipment, providing a solid guarantee for enterprise production safety and cost control.

[0004] Currently, there are few automatic intelligent tightening devices for oil casing and thread protectors. Usually, manual tightening is used to achieve the tightening and fixing of the two. This method consumes a lot of manpower, and the installation specifications are not uniform, which may damage the external threads of the oil casing. Therefore, there is an urgent need for a tightening machine for oil casing and anti-corrosion oil pipe thread protectors to overcome the above problems. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a tightening machine for oil casing and anti-corrosion oil pipe thread protector, which can fix the oil casing and oil pipe thread protector separately, and achieve automatic intelligent tightening of the two by means of a telescopic structure, and is suitable for tightening operations of various oil casings.

[0006] The objective of this application is achieved through the following technical solution:

[0007] A tightening machine for oil casing and anti-corrosion oil pipe thread protector includes a movable base, a fixed unit, and a tightening unit. The fixed unit comprises a fixed pipe and a first clamping member, the first clamping member being threadedly connected to the fixed pipe. The movable base includes a base plate and a sliding plate. The tightening unit includes a rotating bracket, a rotating mechanism, a rotary motor, and a hydraulic cylinder. The output shaft of the hydraulic cylinder is fixedly connected to one side of the sliding plate, and the sliding plate is slidably connected to the base plate. A rotating bracket is provided above the sliding plate, and the rotating bracket includes an annular bracket, a first bracket, a second bracket, and a connecting bearing. The rotating mechanism includes a casing and a second clamping member. A rotating shaft is provided at the end of the casing. The annular bracket cooperates with the casing, and the connecting bearing rotatably cooperates with the rotating shaft. The second clamping member is threadedly connected to the casing. Gear patterns are provided on the outer circumference of the casing, and a gear is provided at the output shaft of the rotary motor, the gear cooperating with the gear patterns.

[0008] In some possible embodiments, the first clamping member includes a first knob, a first connecting rod, and a first base plate. The fixing tube is provided with a first through hole, and the first connecting rod is threadedly connected to the first through hole. The second clamping member includes a second knob, a second connecting rod, and a second base plate. The sleeve is provided with a second through hole, and the second connecting rod is threadedly connected to the second through hole.

[0009] In some possible embodiments, the two ends of the first bracket are respectively fixedly connected to the annular bracket and the sliding plate, and the two ends of the second bracket are respectively fixedly connected to the connecting bearing and the sliding plate.

[0010] In some possible embodiments, the inner wall of the fixing tube is provided with a groove, which mates with the first chassis.

[0011] In some possible embodiments, the number of the first clamping member and the second clamping member is 4-8.

[0012] In some possible embodiments, the bottom surfaces of the first chassis and the second chassis are provided with rubber pads.

[0013] In some possible embodiments, the fixing tube and the sleeve are coaxially arranged.

[0014] In some possible embodiments, the tightening machine further includes a power supply and a controller, the power supply being electrically connected to the controller, the hydraulic cylinder, and the rotary motor.

[0015] In some possible embodiments, the fixing tube is divided into a left fixing tube and a right fixing tube, which are connected by screws and nuts. The left fixing tube and the right fixing tube are provided with fixing seats at their upper and lower contact ends, and the two are detachably connected.

[0016] The technical solution of this application embodiment has at least the following advantages and beneficial effects:

[0017] This application utilizes a fixed pipe to fix the oil casing and the casing to fix the oil pipe thread protector. The controller controls the operation of the oil cylinder and the rotary motor. The oil cylinder drives the sliding plate to move towards the fixed pipe, and the rotary motor drives the oil pipe thread protector to rotate relative to the oil casing and the casing, automatically and intelligently tightening the two. It is suitable for tightening the thread protector of various oil casings and the device has a high degree of automation. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the oil casing and anti-corrosion oil pipe thread protector tightening machine provided for some embodiments of this application;

[0019] Figure 2 for Figure 1 The right view;

[0020] Figure 3 for Figure 1 The front view;

[0021] Figure 4 for Figure 1 Top view;

[0022] Figure 5 for Figure 4 A detailed structural diagram of point A in the middle;

[0023] Figure 6 This is a schematic diagram of a fixed tube.

[0024] Icons: 1. Fixed tube; 11. First clamping element; 12. Left fixed tube; 13. Right fixed tube; 2. Base plate; 3. Sliding plate; 4. Rotating bracket; 41. Ring bracket; 42. First bracket; 43. Second bracket; 44. Connecting bearing; 5. Rotating mechanism; 51. Sleeve; 52. Second clamping element; 53. Rotating shaft; 6. Rotary motor; 7. Hydraulic cylinder; 8. Gear pattern; 9. Gear. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this application may have fewer components, other components not shown in the drawings, different components, differently arranged components, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0027] See appendix Figure 1-6 This application discloses a tightening machine for an oil casing and anti-corrosion oil pipe thread protector, comprising a movable base, a fixed unit, and a tightening unit. The fixed unit includes a fixed pipe 1 and a first clamping member 11, which is threadedly connected to the fixed pipe. The movable base includes a base plate 2 and a sliding plate 3. The tightening unit includes a rotating bracket 4, a rotating mechanism 5, a rotating motor 6, and a hydraulic cylinder 7. The output shaft of the hydraulic cylinder 7 is fixedly connected to one side of the sliding plate 3. The sliding plate 3 is slidably connected to the base plate 2. The rotating bracket 4 is provided above the sliding plate 3. The first clamping member 11 cooperates with the fixed pipe 1 to fix the oil casing. The rotating bracket 4 includes an annular bracket 41, a first bracket 42, a second bracket 43, and a connecting bearing 44. The annular bracket 41 is equipped with ball bearings, and the annular bracket 41 is rotatably connected to the sleeve 51. The rotating mechanism 5 includes the sleeve 51 and the second clamping member 52. The second clamping member 52 and the sleeve 51 are used to fix the oil pipe thread protector. The end of the sleeve 51 is provided with a rotating shaft 53. The annular bracket 41 is engaged with the sleeve 51. The connecting bearing 44 is rotatably engaged with the rotating shaft 53. The second clamping member 52 is threadedly connected to the sleeve 51. The outer circumference of the sleeve 51 is provided with gear patterns 8. The output shaft of the rotary motor 6 is provided with a gear 9. The gear 9 is engaged with the gear patterns 8. Therefore, with the cooperation of the rotating bracket 4, the rotating shaft 53 and the connecting bearing 44, the rotary motor 6 drives the rotating mechanism 5 to rotate, thereby driving the rotation of the oil pipe thread protector inside.

[0028] Specifically, the first clamping member 11 includes a first knob, a first connecting rod, and a first base. The fixed tube is provided with a first through hole, and the first connecting rod is threadedly connected to the first through hole. The second clamping member 52 includes a second knob, a second connecting rod, and a second base. The sleeve 51 is provided with a second through hole, and the second connecting rod is threadedly connected to the second through hole. The first clamping member 11 is threadedly connected to the fixed tube 1 through the first connecting rod. By adjusting the first knob, the depth of the first connecting rod extending into the fixed tube 1 is controlled, thereby achieving the fixation of the oil casing. Similarly, the second clamping member 52 achieves the fixation of the oil pipe thread protector.

[0029] Specifically, the two ends of the first bracket 42 are fixedly connected to the annular bracket 41 and the sliding plate 3, respectively, and the two ends of the second bracket 43 are fixedly connected to the connecting bearing 44 and the sliding plate 3, respectively. The rotating bracket 4 supports the sleeve 51, which rotates circumferentially on the rotating rod bracket. The connecting bearing 44 is fixedly connected to the rotating shaft 53 at the end of the sleeve 51. The rotating bracket 4 cooperates with the sliding plate 3, and the movement of the sliding plate 3 drives the sleeve 51 to move.

[0030] Specifically, a groove is provided on the inner wall of the fixed pipe. The groove cooperates with the first base plate. When the oil casing enters the fixed pipe, the first base plate is placed in the groove, which will not affect the filling of the oil casing.

[0031] Specifically, there are six first clamping parts 11 and six second clamping parts 52, which are used to fix the oil casing and related thread protectors.

[0032] Specifically, the bottom surfaces of both the first and second chassis are equipped with rubber pads. These rubber pads reduce wear on the oil casing.

[0033] Specifically, the fixing tube 1 and the sleeve 51 are coaxially arranged. This facilitates alignment between the oil sleeve and the sleeve 51, and makes tightening operations easier.

[0034] Specifically, the tightening machine also includes a power supply and a controller, wherein the power supply is electrically connected to the controller, the hydraulic cylinder 7 and the rotary motor 6.

[0035] As a further improvement of this application, the fixed tube 1 is divided into a left fixed tube 12 and a right fixed tube 13, which are fixed together by screws and nuts. The left fixed tube 12 and the right fixed tube 13 are provided with fixed seats at their upper and lower contact ends, and the two are detachably connected. After tightening using the tightening machine of this application, the left fixed tube 12 and the right fixed tube 13 can be disassembled to realize the transportation of the oil casing. Furthermore, each end of the left fixed tube 12 and the right fixed tube 13 is provided with a support arm. One side of the fixed tube is fixed, and the support arm of the other side is provided with a slide rail, allowing for sliding.

[0036] In use, the oil casing is first moved into the left fixed tube 12 and the right fixed tube 13, and the left fixed tube 12 and the right fixed tube 13 are fixedly connected. The oil casing is fully fixed using the first clamping member 11, and the oil pipe thread protector is fixed using the second clamping member 52. The controller controls the operation of the oil cylinder 7 and the rotary motor 6. The oil cylinder 7 drives the sliding plate 3 to move towards the side of the fixed tube 1, and the rotary motor 6 drives the oil pipe thread protector to rotate relative to the oil casing, tightening both. After tightening, by releasing the second clamping member 52, the controller controls the oil cylinder 7 to move in the opposite direction, causing the sleeve 51 of the rotating mechanism 5 to separate from the oil pipe thread protector. After separation, the first clamping member 11 is released, and the threaded nuts placed on the upper and lower parts of the fixed tube are removed. The left fixed tube 12 and the right fixed tube 13 are then disassembled, thus completing the subsequent operations of the oil casing.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tightening machine for oil casing and anti-corrosion oil pipe thread protector, comprising a movable base, a fixed unit, and a tightening unit, characterized in that, The fixing unit includes a fixing tube (1) and a first clamping member (11), the first clamping member (11) and the fixing tube (1) are threaded together. The movable base includes a base plate (2) and a sliding plate (3). The tightening unit includes a rotating bracket (4), a rotating mechanism (5), a rotating motor (6) and a hydraulic cylinder (7). The output shaft of the hydraulic cylinder (7) is fixedly connected to one side of the sliding plate (3). The sliding plate (3) and the base plate (2) are slidably connected. A rotating bracket (4) is provided above the sliding plate (3). The rotating bracket (4) includes an annular bracket ( 41) First bracket (42), second bracket (43) and connecting bearing (44), the rotating mechanism (5) includes a sleeve (51) and a second clamping member (52), the end of the sleeve (51) is provided with a rotating shaft (53), the annular bracket (41) cooperates with the sleeve (51), the connecting bearing (44) is rotatably cooperated with the rotating shaft (53), the second clamping member (52) is threadedly connected to the sleeve (51), the outer circumference of the sleeve (51) is provided with gear patterns, the output shaft of the rotating motor (6) is provided with a gear, and the gear is cooperated with the gear patterns.

2. The oil casing and anti-corrosion oil pipe thread protector tightening machine according to claim 1, characterized in that, The first clamping member (11) includes a first knob, a first connecting rod, and a first base plate. The fixed tube (1) is provided with a first through hole. The first connecting rod is threadedly connected to the first through hole. The second clamping member (52) includes a second knob, a second connecting rod, and a second base plate. The sleeve is provided with a second through hole. The second connecting rod is threadedly connected to the second through hole.

3. The oil casing and anti-corrosion oil pipe thread protector tightening machine according to claim 1, characterized in that, The two ends of the first bracket (42) are fixedly connected to the annular bracket (41) and the sliding plate (3) respectively, and the two ends of the second bracket (43) are fixedly connected to the connecting bearing (44) and the sliding plate (3) respectively.

4. The oil casing and anti-corrosion oil pipe thread protector tightening machine according to claim 2, characterized in that, The inner wall of the fixed tube (1) is provided with a groove, which is matched with the first chassis.

5. A tightening machine for oil casing and anti-corrosion oil pipe thread protector according to claim 1, characterized in that, The number of the first clamping member (11) and the second clamping member (52) is 4-8.

6. A tightening machine for oil casing and anti-corrosion oil pipe thread protector according to claim 2, characterized in that, The bottom surfaces of the first chassis and the second chassis are provided with rubber pads.

7. A tightening machine for oil casing and anti-corrosion oil pipe thread protector according to claim 1, characterized in that, The fixed tube (1) and the sleeve (51) are coaxially arranged.

8. A tightening machine for oil casing and anti-corrosion oil pipe thread protector according to claim 1, characterized in that, The tightening machine also includes a power supply and a controller, wherein the power supply is electrically connected to the controller, the oil cylinder (7) and the rotary motor (6).

9. A tightening machine for oil casing and anti-corrosion oil pipe thread protector according to claim 1, characterized in that, The fixing tube (1) is divided into a left fixing tube (12) and a right fixing tube (13). The left fixing tube (12) and the right fixing tube (13) are connected by screws and nuts. The left fixing tube (12) and the right fixing tube (13) are provided with fixing seats at the upper and lower contact ends, and the two can be detachably connected.

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