Automatic cleaning device for thread protector

Abstract

The utility model discloses an automatic cleaning device for a thread protector. The automatic cleaning device comprises a support, an inner cylinder, a spiral plate, an outer cylinder, cleaning liquid and a driving assembly. According to the device, forward or reverse rotation of the inner cylinder is achieved through the driving assembly, during forward rotation, the thread protector moves into the cleaning liquid at the smooth position of the inner cylinder along the spiral plate from the discharging opening and then rotates along with the discharging opening, and oil dirt impurities attached to the surface are separated through extraction of the cleaning liquid and rotation centrifugal force; and during reverse rotation, the thread protector moves towards the discharging port along the spiral plate and is separated from the inner cylinder to realize discharging. Compared with a manual cleaning mode, the device has an automatic cleaning function and an automatic discharging function, the cleaning efficiency of the thread protector is greatly improved, the labor intensity of workers is reduced, meanwhile, the low-temperature factor and the environmental protection requirement are considered, and the device is provided with a heating coil and a detachable liquid storage tank, so that operation in winter and hazardous waste collection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning thread protectors of oil casings, in particular to an automatic cleaning device for thread protectors. Background Art

[0002] Thread protectors refer to caps and bushings used to protect threads and seals during loading, unloading, transportation and storage of oil casings. They are widely used in oilfield projects. Due to the high cost of thread protectors used in oilfields, they need to be recycled and cleaned.

[0003] Recycled thread protectors are currently generally cleaned manually using a brush and diesel at the work site. Manual cleaning has the disadvantages of low efficiency, high labor intensity, average cleaning effect, substandard environmental protection, and great occupational hazards. Especially in winter, the oil and impurities attached to the thread protector are more difficult to clean.

[0004] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an automatic cleaning device for a thread protector, aiming to achieve automatic cleaning and automatic unloading of the thread protector, reduce occupational hazards and manual labor intensity, improve the quality and efficiency of filter element cleaning and meet environmental protection requirements.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, a thread protector automatic cleaning device comprises:

[0008] Bracket;

[0009] An inner cylinder is rotatably connected to the bracket, one end of the inner cylinder is provided with a discharge port, the inner diameter of the inner cylinder gradually increases from the discharge port to the other end of the inner cylinder and tends to be flat, and a plurality of cleaning holes are also provided on the inner cylinder;

[0010] The outer cylinder support is perpendicular to the bracket and connects the bracket and the lower shell of the outer cylinder;

[0011] A spiral plate is spirally arranged inwardly from the discharge port along the inner wall of the inner cylinder;

[0012] The outer cylinder is sleeved on the outer side of the inner cylinder, and is divided into an upper cover and a lower shell, and a gap is provided between the outer cylinder and the inner cylinder, and the lower shell of the outer cylinder is fixedly connected to the bracket, and the outer cylinder is loaded with cleaning liquid;

[0013] The driving assembly is arranged on the bracket and connected to one end of the inner cylinder away from the discharge port to drive the inner cylinder to rotate forward or reversely.

[0014] Furthermore, a loading platform is provided at both ends of the bracket, at least four supporting rods are provided on the loading platform, and rollers are provided on the supporting rods, and the rollers are in contact with the outer walls at both ends of the inner cylinder.

[0015] Furthermore, slide rails are provided on the outer walls at both ends of the inner cylinder to match the rollers.

[0016] Furthermore, the outer cylinder comprises an upper cover and a lower shell, the upper cover and the lower shell are fixedly connected by bolts, the upper cover is also provided with at least two handles, the lower shell is connected to the bracket through the outer cylinder support, and the shape of the outer cylinder is adapted to the inner cylinder.

[0017] Furthermore, the lower end of the lower shell of the outer cylinder is also connected to a liquid storage tank, and a heating element is arranged in the liquid storage tank.

[0018] Furthermore, the driving assembly includes a driving motor, which is fixedly connected to the bracket and connected to the inner cylinder via a coupling.

[0019] Furthermore, the cleaning fluid includes diesel.

[0020] Furthermore, the heating element comprises a heating coil, and the heating is arranged in a spiral manner along a horizontal direction.

[0021] The technical solution adopted by the utility model has the following beneficial effects:

[0022] The utility model discloses an automatic cleaning device for a thread protector, including a bracket, an inner cylinder, a spiral plate, an outer cylinder, a cleaning liquid and a driving assembly; in the present application, the inner cylinder is rotated forward or reversely by the driving assembly. When rotating forwardly, the thread protector moves from the discharge port along the spiral plate to the cleaning liquid at the flat part of the inner cylinder and then rotates, and the oil impurities attached to the surface are separated by the extraction of the cleaning liquid and the centrifugal force of the rotation; when rotating reversely, the thread protector moves along the spiral plate to the discharge port and separates from the inner cylinder to achieve unloading. Compared with the manual cleaning method, this device has the functions of automatic cleaning and automatic unloading, which greatly improves the cleaning efficiency of the thread protector and reduces the labor intensity of manual labor. At the same time, considering the low temperature factor and environmental protection requirements, the device is equipped with a heating coil and a detachable liquid storage tank, which is convenient for winter operation and hazardous waste collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A structural schematic diagram of an automatic cleaning device for a thread protector provided by the utility model;

[0024] Figure 2 A schematic diagram of the cross-sectional structure of the inner cylinder of an automatic cleaning device for a thread protector provided by the utility model;

[0025] Figure 3 The utility model provides a schematic diagram of the cross-sectional structure of the lower shell of the outer cylinder of the automatic cleaning device for thread protectors.

[0026] 1. Bracket; 2. Outer cylinder support; 3. Outer cylinder lower shell; 4. Upper cover; 5. Inner cylinder; 6. Cleaning hole; 7. Spiral plate; 8. Heating coil; 9. Liquid storage tank; 10. Roller; 11. Coupling; 12. Drive motor; 13. Support rod; 14. Slide rail. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0029] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this embodiment, see Figure 1-Figure 3, an automatic cleaning device for a thread protector comprises a bracket 1; an inner cylinder 5 is rotatably connected to the bracket 1, one end of the inner cylinder 5 is provided with a discharge port, the inner diameter of the inner cylinder 5 gradually increases from the discharge port to the other end of the inner cylinder 5 and tends to be flat, and a plurality of cleaning holes 6 are also provided on the inner cylinder 5. When in use, the thread protector can contact with the cleaning liquid through the cleaning holes 6 to achieve automatic cleaning; a spiral plate 7 is spirally arranged inwardly along the inner wall of the inner cylinder 5 from the discharge port; an outer cylinder is sleeved on the outside of the inner cylinder 5, and a gap is provided between the outer cylinder and the bracket 1, and the outer cylinder is fixedly connected to the bracket 1, and the cleaning liquid is loaded in the outer cylinder; a driving assembly is arranged on the bracket 1 and connected to one end of the inner cylinder 5 away from the discharge port to drive the inner cylinder 5 to rotate in the spiral direction of the spiral plate 7 or in the reverse direction of the spiral plate 7.

[0032] It should be noted that, see Figure 1-Figure 2 The inner cylinder 5 is composed of two parts, one part is truncated cone-shaped and the other part is cylindrical, and the diameter of the inner cylinder 5 gradually increases from left to right. During cleaning, the thread protector is mainly concentrated in the cylindrical area and can fully contact with the cleaning liquid in the outer cylinder to improve the cleaning efficiency.

[0033] It should be understood that, in this embodiment, the cleaning fluid is diesel, which can not only remove impurities on the thread protector, but also play a lubricating role.

[0034] When in use, the inner cylinder 5 is driven by the driving assembly to rotate along the spiral direction of the spiral plate 7 or the reverse spiral direction of the spiral plate 7 to achieve forward rotation or reverse rotation. When rotating forward, the thread protector is placed into the inner cylinder 5 through the discharge port. Under the high-speed drive of the driving motor 12, the thread protector moves along the spiral plate 7 to the flat part of the inner barrel 5 and contacts with the cleaning liquid. The oil impurities attached to the thread protector are extracted by the cleaning liquid and the centrifugal force of the rotation to achieve separation. When rotating in the reverse direction, the thread protector moves along the spiral plate 7 to the discharge port and separates from the inner cylinder 5 to achieve unloading. Compared with the manual cleaning method, this device has automatic cleaning and automatic unloading functions, which greatly improves the cleaning efficiency of the thread protector and reduces the labor intensity of manual labor. At the same time, considering the low temperature factors and environmental protection requirements, the device is equipped with a heating coil and a detachable liquid storage tank to facilitate winter operations and hazardous waste collection.

[0035] In the implementation of the present utility model, refer to Figure 1 A loading platform is provided at both ends of the bracket 1, and at least four support rods 13 are provided on the loading platform, and rollers 10 are provided on the support rods 13. The rollers 10 abut against the outer walls of the two ends of the inner cylinder 5. When the driving component drives the inner cylinder 5 to rotate, the two ends of the inner cylinder 5 are in contact through the rollers 10, thereby reducing the friction between the inner cylinder 5 and the bracket 1.

[0036] In order to ensure the stability of the inner cylinder 5 during rotation, slide rails 14 are provided at both ends of the inner cylinder 5 to match the roller 10 and limit the position of the roller 10 to prevent the inner cylinder 5 from deviating during rotation.

[0037] In the embodiments of the present invention, refer to Figure 1 and Figure 3 The outer cylinder includes an upper cover 4 and an outer cylinder lower shell 3, the upper cover 4 and the lower shell 3 are fixedly connected by bolts, and the upper cover 4 is also provided with at least two handles, the lower shell 3 is connected to the bracket 1 through the outer cylinder support 2, and the shape of the outer cylinder is adapted to the inner cylinder 5, and in addition, the lower end of the lower shell 3 is also connected to a liquid storage tank 9, and a heating element is arranged in the liquid storage tank 9; by removing the connecting bolts between the upper cover 4 and the lower shell 3, the inner cylinder 5 and the outer cylinder can be cleaned regularly, and the impurities in the liquid storage tank 9 can be cleaned regularly.

[0038] It should be noted that the heating element is a heating coil, which is arranged in a spiral manner in the horizontal direction. In a low temperature environment, steam can be connected to the heating coil to continuously heat the cleaning liquid in the liquid storage tank 9 to ensure the cleaning effect.

[0039] In the embodiments of the present invention, refer to Figure 1-Figure 3 The driving assembly includes a driving motor 12, which is fixedly connected to the bracket 1, and the driving motor 12 is connected to the inner cylinder 5 through a coupling 11, so that the connection between the driving motor 12 and the inner cylinder 5 can be easily removed.

[0040] Specifically, the device is implemented as follows when in use:

[0041] 1. Inject cleaning liquid and load materials: First, inject cleaning liquid into the discharge port of the inner tube 5, keep the liquid level within 300 mm from the top of the lower shell 3 of the outer tube, and then pour it into the thread protector;

[0042] 2. Automatic cleaning: After loading is completed, the driving motor 12 rotates forward to drive the coupling 11 and the inner cylinder 5 to rotate forward. The thread protector moves from the discharge port along the spiral plate into the cleaning liquid at the flat part of the inner cylinder 5 and then rotates. The oil impurities attached to the surface are separated by the cleaning liquid extraction and the rotating centrifugal force, and flow along the cleaning hole 6 to the liquid storage tank 9;

[0043] 3. Automatic unloading: After the thread protector is completely cleaned, the drive motor 12 reverses to drive the coupling 11 and the inner cylinder 5 to rotate in the opposite direction. The thread protector then moves along the spiral plate to the discharge port and separates from the inner cylinder 5 to realize unloading, and the operator collects it.

[0044] 4. Heating and cleaning: In winter, steam can be connected to the heating coil 8 to continuously heat the cleaning liquid to ensure the cleaning effect. The liquid storage tank 9 can be disassembled regularly to clean the precipitated oil impurities.

[0045] The technical solution adopted by the utility model has the following beneficial effects:

[0046] 1. Easy to operate and highly automated: cleaning and unloading operations only require controlling the motor's forward and reverse rotation to achieve automated cleaning and unloading;

[0047] 2. High cleaning efficiency, saving labor costs: About 800 3-1 / 2" thread protectors can be cleaned per hour, and only 1-2 people are needed to operate and supervise;

[0048] 3. High cleanliness and strong applicability: Each thread protector is fully in contact with the cleaning liquid, and the attached oil and impurities are separated by extraction of the cleaning liquid and the centrifugal force of rotation. The cleaning time can be adjusted according to the oil and impurities. This device can clean thread protectors of various specifications;

[0049] 4. Environmental protection: Regularly clean the oil impurities deposited at the bottom of the liquid storage tank to meet environmental protection requirements;

[0050] 5. High safety: Operators do not come into contact with the cleaning fluid during the cleaning process.

[0051] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the solutions disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. An automatic cleaning device for a thread protector, characterized in that: include: Bracket; An inner cylinder is rotatably connected to the bracket, one end of the inner cylinder is provided with a discharge port, the inner diameter of the inner cylinder gradually increases from the discharge port to the other end of the inner cylinder and tends to be flat, and a plurality of cleaning holes are also provided on the inner cylinder; A spiral plate is spirally arranged inwardly from the discharge port along the inner wall of the inner cylinder; The outer cylinder is sleeved on the outer side of the inner cylinder, and is divided into an upper cover and an outer cylinder lower shell, and a gap is provided between the outer cylinder and the inner cylinder, and the outer cylinder lower shell is fixedly connected to the bracket, and the outer cylinder is loaded with cleaning liquid; The outer cylinder support is perpendicular to the bracket and connects the bracket and the lower shell of the outer cylinder; The driving assembly is arranged on the bracket and connected to one end of the inner cylinder away from the discharge port to drive the inner cylinder to rotate forward or reversely.

2. The automatic cleaning device for thread protectors according to claim 1, characterized in that: The bracket is provided with a loading platform at both ends, the loading platform is provided with at least four supporting rods, and the supporting rods are provided with rollers, and the rollers are in contact with the outer walls at both ends of the inner cylinder.

3. The automatic cleaning device for thread protectors according to claim 2, characterized in that: Slide rails are also provided on the outer walls at both ends of the inner cylinder to match the rollers.

4. The automatic cleaning device for thread protectors according to claim 1, characterized in that: The outer cylinder comprises an upper cover and a lower shell, the upper cover and the lower shell are fixedly connected by bolts, the upper cover is also provided with at least two handles, the lower shell of the outer cylinder is connected to the bracket through the outer cylinder support, and the shape of the outer cylinder is adapted to the inner cylinder.

5. The automatic cleaning device for thread protectors according to claim 1, characterized in that: The lower end of the lower shell is also connected to a liquid storage tank, and a heating element is arranged in the liquid storage tank.

6. The automatic cleaning device for thread protectors according to claim 1, characterized in that: The driving assembly comprises a driving motor, which is fixedly connected to the bracket and connected to the inner cylinder via a coupling.

7. The automatic cleaning device for thread protectors according to claim 1, characterized in that: The cleaning fluid includes diesel fuel.

8. The automatic cleaning device for thread protectors according to claim 5, characterized in that: The heating element comprises a heating coil, and the heating coil is spirally arranged in a horizontal direction.

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