Floating structure

Abstract

The utility model relates to the technical field of petroleum mechanical devices, in particular to a floating structure which comprises a sliding mechanism, a resetting mechanism used for resetting the sliding mechanism and a base provided with the sliding mechanism and the resetting mechanism. A first groove is formed in the top of the base in the first direction, and the first groove is provided with opposite inner side walls; the sliding mechanism comprises a pair of guide rails which are arranged on the inner side wall and extend in the first direction, and a roller assembly which is embedded with the guide rails to move along the guide rails. Protrusions extending in the first direction are arranged on the opposite sides of the pair of guide rails, and the roller assembly is provided with second grooves embedded with the protrusions. The reset mechanism is arranged in the first groove and located between the pair of guide rails so that the sliding mechanism can reset in the first direction. The sliding wheels are arranged at the bottom of the support, the technical scheme that an existing sliding rail base slides along a sliding groove is replaced, the possibility of clamping stagnation is remarkably reduced, and self-adaptive movement of the mud scraping disc along with shaking of the drill rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum mechanical devices, in particular to a floating structure. Background Art

[0002] With the continuous development of oil drilling technology, the requirements for automation in the drilling process are increasing. After pulling out of the hole, the mud remaining on the outer wall of the drill pipe will have an adverse effect on the make-up and break-out operations of the iron roughneck and the accurate recognition of the machine vision, thus affecting the drilling efficiency and safety. Therefore, the effective treatment of mud during drilling is particularly important.

[0003] During the drilling operation, the drill pipe is often not in the center position and shakes greatly. In order to ensure the mud scraping effect, it is necessary to enable the mud scraper to move with the drill pipe to ensure the mud cleaning effect.

[0004] In the prior art, for example, a Chinese patent application with publication number CN114439377A provides an automatic scraper for a drill rod, which enables a scraper disc to slide along the slide rail by cooperating with the slide rail on the base, thereby achieving the effect that the scraper disc moves with the drill rod. The existing reset spring is prone to failure to reset the scraper disc due to excessive friction between the slide rail and the slide rail.

[0005] However, the above technical solution still has some shortcomings. In order to ensure the smooth sliding of the slide rail seat on the slide rail, the two slide rails need to maintain high-precision parallelism, and the parallelism of the slide rails is required to be high. In actual use, due to vibration and other reasons, the slide rails are prone to deflection, which leads to movement jamming and unsmooth movement of the scraper disc. The adjustment and maintenance of the slide rails requires a lot of time and manpower. Once jamming occurs, it may affect the efficiency of the entire drilling operation.

[0006] Therefore, there is an urgent need for a floating structure for a clamp-type scraper that can solve the technical problem of unsmooth movement of the scraper disc, reduce manpower maintenance time, and thus improve drilling operation efficiency. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a floating structure, which solves the technical problems that the prior floating structure is prone to get stuck and slides unsmoothly.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0011] A floating structure, the floating structure comprising: a sliding mechanism, a reset mechanism for resetting the sliding mechanism, and a base for arranging the sliding mechanism and the reset mechanism;

[0012] A first groove is provided on the top of the base along a first direction, and the first groove has inner side walls arranged oppositely;

[0013] The sliding mechanism comprises: a pair of guide rails arranged on the inner side walls and extending along the first direction, and a roller assembly fitted with the guide rails to move along the guide rails; raised portions extending along the first direction are arranged on the opposite sides of the pair of guide rails, and a second groove fitted with the raised portions is arranged on the roller assembly;

[0014] The reset mechanism is arranged in the first groove and between the pair of guide rails to reset the sliding mechanism along the first direction.

[0015] It further comprises a support, and a third groove for installing the support is provided at the bottom of the first groove.

[0016] The reset mechanism comprises a spring capable of contracting and resetting along the first direction and a connecting pin shaft for sleeving the spring, and two ends of the spring are respectively abutted against the base and the support.

[0017] The roller assembly comprises: a pulley and a connecting shaft, and the pulley is rotatably connected to the bottom of the support through the connecting shaft.

[0018] One end of the connecting shaft is connected to the pulley shaft, the other end of the connecting shaft passes through the bottom of the support and extends into the support, and is fixed by a nut.

[0019] An opening pin is further provided at the end of the connecting shaft connected to the nut, and the opening pin is inserted into the connecting shaft radially above the nut to fix the nut.

[0020] A baffle is provided at the end of the connecting shaft connected to the pulley to keep the pulley on the connecting shaft.

[0021] A lock washer is provided between the support and the pulley.

[0022] The floating structure is used for a pinch type sludge scraper.

[0023] (III) Advantageous effects

[0024] The advantageous effects of the present utility model are as follows: The present utility model provides a floating structure, by arranging a sliding assembly between the support and the base, the adaptive adjustment of the sludge scraping disc is ensured, and the efficiency and effect of sludge cleaning are improved.

[0025] By setting pulleys at the bottom of the support, the existing technical solution of the slide rail seat sliding along the chute is replaced, significantly reducing the possibility of jamming. The support can slide along the front-back direction of the base, enabling the mud scraping plate to move adaptively with the shaking of the drill pipe, thus ensuring that the mud scraping plate is always in close contact with the outer wall of the drill pipe and achieving efficient mud cleaning.

[0026] The side wall of the pulley is provided with a second groove, and by fitting the second groove with the end of the guide rail, the movement resistance of the pulley sliding along the guide rail can be reduced.

[0027] In addition, a reset mechanism is also provided in the first groove. Through the cooperation of the spring and the connecting pin shaft, after the drill pipe disengages from the mud scraping plate, the mud scraping plate can automatically reset. Description of the Drawings

[0028] Figure 1 It is a cross-sectional view of the floating structure of the present utility model.

[0029]

Description of the Reference Numerals

[0030] 1: Connecting shaft;

[0031] 2: Pulley;

[0032] 3: Guide rail;

[0033] 4: Base;

[0034] 5: Lock washer;

[0035] 6: Nut;

[0036] 7: Split pin;

[0037] 8: Support;

[0038] 9: First groove;

[0039] 10: Connecting pin shaft;

[0040] 11: Baffle;

[0041] 12: Second groove;

[0042] 13: Inner side wall;

[0043] 14; Third groove. Detailed Embodiments

[0044] For better explaining the present utility model and facilitating understanding, the present utility model will be described in detail below with reference to the drawings through specific embodiments. Among them, the orientation nouns such as "upper", "lower", etc. mentioned in this article are with reference to Figure 1 the orientation.

[0045] The present utility model provides a floating structure, which is applied to a clamp - type sludge scraper and includes a sliding mechanism, a reset mechanism for resetting the sliding mechanism, and a base for arranging the sliding mechanism and the reset mechanism. A first groove 9 is arranged along a first direction at the top of the base. The first groove 9 has inner side walls 13 arranged oppositely. The sliding mechanism includes: a pair of guide rails 3 arranged on the inner side walls 13 and extending along the first direction, and a roller assembly fitted with the guide rails 3 to move along the guide rails 3; protrusions extending along the first direction are arranged on the opposite sides of the pair of guide rails 3, and a second groove 12 fitted with the protrusions is arranged on the roller assembly; the reset mechanism is arranged in the first groove 9 and between the pair of guide rails to reset the sliding mechanism along the first direction. By arranging the cooperation between the roller assembly and the guide rails 3 in the first groove 9, the support 8 can move along the extending direction of the guide rails 3, so that the sludge scraping disc on the support 8 can move along with the drill pipe. The problem that traditional sliding rails and sliding rail seats are prone to jamming during sliding is avoided, and the operation of the sludge scraping disc is smoother.

[0046] To better understand the above - mentioned technical solution, the exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present utility model can be understood more clearly and thoroughly, and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0047] The present utility model provides a floating structure, including a sliding mechanism, a reset mechanism for resetting the sliding mechanism, and a base for arranging the sliding mechanism and the reset mechanism. By arranging the sliding mechanism, the support 8 can slide along the front - rear direction along with the drill pipe, so that the sludge scraping disc on the support 8 can move along with the drill pipe. By arranging the reset mechanism, the sludge scraping disc can automatically reset after the drill pipe is disengaged.

[0048] The sliding mechanism includes a pair of guide rails 3 and a roller assembly. A first groove 9 is arranged along a first direction at the top of the base 4. The guide rails 3 are fixedly arranged on the inner side walls 13 of the first groove 9 and extend along the first direction. Protrusions extending along the first direction are arranged on the opposite sides of the pair of guide rails 3, and a second groove 12 fitted with the protrusions is arranged on the roller assembly. The reset mechanism is arranged in the first groove 9 and between the pair of guide rails to reset the sliding mechanism along the first direction.

[0049] A third groove 14 for installing the support 8 is further arranged at the bottom of the first groove 9. The third groove 14 is an arc - shaped groove so that the support 8 and the base 4 can be fitted.

[0050] The guide rail 3 is made of stainless steel. The guide rail 3 is welded to two opposite inner side walls 13 in the first groove 9 along the first direction, avoiding a complex adjustment process, enhancing the structural stability, and thus reducing the workload of manual maintenance.

[0051] The roller assembly includes: a pulley 2, a connecting shaft 1, a nut 6, and an opening pin 7. The pulley 2 is rotatably connected to the bottom of the support 8 through the connecting shaft 1. One end of the connecting shaft 1 is axially connected to the pulley 2, and the other end is fixedly connected to the support 8. The end of the connecting shaft 1 connected to the support 8 passes through the bottom of the support 8 and extends into the interior of the support 8, and is threadedly connected to the nut 6. An opening pin 7 is also provided at the end of the connecting shaft 1 connected to the nut 6. The opening pin 7 is inserted into the connecting shaft 1 radially above the nut 6 to prevent the nut 6 from falling off the connecting shaft 1, causing the connecting shaft 1 to fall off the bottom of the support 8.

[0052] A baffle 11 is provided at one end of the connecting shaft 1 connecting the pulley 2. The baffle 11 is used to keep the pulley 2 on the connecting shaft 1 and prevent the pulley 2 from falling off the bottom of the connecting shaft 1.

[0053] A lock washer 5 is also provided between the support 8 and the pulley 2. The lock washer 5 is used to prevent the connecting components from loosening and ensure the structural stability.

[0054] The side wall of the pulley 2 has a second groove 12. The second groove 12 in this embodiment is V-shaped. The protrusion at the outer end of the guide rail 3 is embedded in the second groove 12. The pulley 2 slides along the guide rail 3 through the second groove 12 to reduce the movement resistance of the pulley 2 sliding along the guide rail 3. It replaces the existing sliding connection method of the slide rail seat, significantly reducing the possibility of jamming. At the same time, by the pulley 2 sliding along the guide rail 3, the support 8 can slide along the direction of the guide rail 3, so that the mud scraping plate on the support 8 can move adaptively with the shaking of the drill pipe, and further enable the support 8 to ensure that the mud scraping plate is always in close contact with the outer wall of the drill pipe, realizing efficient mud cleaning.

[0055] The reset mechanism includes a spring that can contract and reset along the first direction and a connecting pin shaft 10 for sleeving the spring. The two ends of the spring are respectively abutted against the base 4 and the support 8. When the drill pipe drives the support 8 to move, the support 8 squeezes the spring. After the drill pipe disengages from the mud scraping plate, under the action of the spring elasticity, the mud scraping plate can automatically reset.

[0056] The present utility model provides a floating structure. By arranging a sliding component between the support 8 and the base 4, the adaptive adjustment of the mud scraping plate is ensured, and the efficiency and effect of mud cleaning are improved.

[0057] A first groove 9 is provided along the top of the base 4, enabling the sliding component to be arranged in the first groove 9. On the basis of ensuring the sliding function, the structure between the support 8 and the base 4 is made more compact.

[0058] The bottom of the support 8 is provided with pulleys 2, which replaces the existing technical solution of the slide rail seat sliding along the chute, significantly reducing the possibility of jamming. The pulley 2 is slidably connected to the guide rail 3 in the first groove 9, enabling the support 8 to slide along the front-back direction of the base 4, realizing the adaptive movement of the mud scraping plate along with the shaking of the drill pipe, ensuring that the mud scraping plate is always in close contact with the outer wall of the drill pipe, and achieving efficient mud cleaning.

[0059] The side wall of the pulley 2 is provided with a V-shaped groove, and the pulley 2 slides along the guide rail 3 through the V-shaped groove, which can reduce the movement resistance of the pulley 2 sliding along the guide rail 3.

[0060] In addition, a reset mechanism is also provided in the first groove 9. Through the cooperation of the spring and the connecting pin shaft 10, after the drill pipe is separated from the mud scraping plate, the mud scraping plate can automatically reset.

[0061] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0062] In the present utility model, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0063] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A floating structure, characterized in that, The floating structure includes: a sliding mechanism, a reset mechanism for resetting the sliding mechanism, and a base for arranging the sliding mechanism and the reset mechanism; A first groove (9) is provided on the top of the base along a first direction, and the first groove (9) has inner side walls (13) arranged oppositely; The sliding mechanism includes: a pair of guide rails (3) arranged on the inner side walls (13) and extending along the first direction, and a roller assembly fitted with the guide rails (3) to move along the guide rails (3); protrusions extending along the first direction are arranged on the facing sides of the pair of guide rails (3), and a second groove (12) fitted with the protrusions is arranged on the roller assembly; The reset mechanism is arranged in the first groove (9) and between the pair of guide rails (3) to reset the sliding mechanism along the first direction.

2. The floating structure according to claim 1, wherein it further includes a support (8), and a third groove (14) for installing the support (8) is provided at the bottom of the first groove (9).

3. The floating structure according to claim 2, wherein the reset mechanism includes a spring capable of contracting and resetting along the first direction and a connecting pin shaft (10) for sleeving the spring, and two ends of the spring are respectively abutted against the base (4) and the support (8).

4. The floating structure according to claim 3, wherein the roller assembly includes: a pulley (2) and a connecting shaft (1), and the pulley (2) is rotatably connected to the bottom of the support (8) through the connecting shaft (1).

5. The floating structure according to claim 4, wherein one end of the connecting shaft (1) is axially connected to the pulley (2), the other end of the connecting shaft (1) passes through the bottom of the support (8) and extends into the support (8), and is fixed by a nut (6).

6. The floating structure according to claim 5, wherein an opening pin (7) is further provided at the end of the connecting shaft (1) connected to the nut (6), and the opening pin (7) is inserted into the connecting shaft (1) radially above the nut (6) to fix the nut (6).

7. The floating structure according to claim 5, wherein a baffle (11) is provided at the end of the connecting shaft (1) connected to the pulley (2) to keep the pulley (2) on the connecting shaft (1).

8. The floating structure according to claim 5, wherein a lock washer (5) is provided between the support (8) and the pulley (2).

9. The floating structure according to claim 1, wherein the floating structure is used for a clip-type sludge scraper.

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