Telescopic ramp controlled by double hydraulic cylinders

Abstract

The utility model relates to a telescopic ramp controlled by double hydraulic cylinders. The telescopic ramp comprises a ramp body and a supporting arm. The ramp is rotationally connected with the base and can rotate to be parallel to the base. The supporting arm is connected with the base and the ramp. The ramp comprises a first telescopic arm, a second telescopic arm, a third telescopic arm, a first hydraulic cylinder and a second hydraulic cylinder; the first telescopic arm is rotationally connected with the base; the first telescopic arm, the second telescopic arm and the third telescopic arm are sequentially sleeved from inside to outside; the first hydraulic cylinder is located in the second telescopic arm and connected with the first telescopic arm and the second telescopic arm. The second hydraulic cylinder is located outside the second telescopic arm and connected with the second telescopic arm and the third telescopic arm. According to the utility model, a two-stage telescopic structure driven by the double hydraulic cylinders is adopted, so that the working stroke of the ramp is improved, the ramp can be matched with different drill floor heights, and the applicability is good. The ramp is rotatably arranged on the base, and the ramp is turned over outwards to be in lap joint with a drill floor during working; during transportation, the ramp is retracted inwards to facilitate transportation.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil drilling equipment, and in particular relates to a telescopic ramp controlled by double hydraulic cylinders. Background Art

[0002] During drilling operations, the power catwalk includes a base,

[0003] The power catwalk is used to realize the reciprocating transportation of drilling pipes such as drill pipes, drill collars, sleeves, etc. between the ground pipe rack and the drilling floor. The pipes can be transported to the drilling floor, and the pipes on the drilling floor can also be transported to the ground pipe rack. It has the characteristics of reliable operation, simple operation, high work efficiency, and convenient transportation. It is a must-have equipment for automated operation of drilling rigs.

[0004] However, the existing power catwalk is based on a ramp structure with a fixed height, and the height of the drilling platform is matched with the height of the ramp, resulting in the need for power catwalks with ramps of different heights for drilling platforms of different heights, which increases the cost of accessories. The ramp also often needs to be disassembled and then transported with the vehicle during transportation, which increases the transportation cost and affects the drilling efficiency. Therefore, a retractable and foldable hydraulic ramp is needed. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a retractable ramp controlled by a double hydraulic cylinder. The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] The utility model provides a retractable ramp controlled by double hydraulic cylinders, comprising: a ramp and a support arm;

[0007] The ramp is rotatably connected to the base, and the ramp can be rotated to be parallel to the base;

[0008] The support arms are respectively connected to the base and the ramp;

[0009] Wherein, the ramp comprises a first telescopic arm, a second telescopic arm, a third telescopic arm, a first hydraulic cylinder and a second hydraulic cylinder;

[0010] The first telescopic arm is rotatably connected to the base;

[0011] The first telescopic arm, the second telescopic arm, and the third telescopic arm are sequentially sleeved from the inside to the outside;

[0012] The first hydraulic cylinder is located inside the second telescopic arm, and two ends of the first hydraulic cylinder are respectively connected to the first telescopic arm and the second telescopic arm;

[0013] The second hydraulic cylinder is located outside the second telescopic arm, and two ends of the second hydraulic cylinder are respectively connected to the second telescopic arm and the third telescopic arm;

[0014] Central axes of the first hydraulic cylinder and the second hydraulic cylinder are parallel to each other.

[0015] In one embodiment of the present invention, a V-shaped slide groove is provided on each of the first telescopic arm, the second telescopic arm and the third telescopic arm, and the height of the middle position of the V-shaped slide groove is lower than the height of two sides thereof.

[0016] In one embodiment of the present invention, both the first hydraulic cylinder and the second hydraulic cylinder are single-acting telescopic hydraulic cylinders.

[0017] In one embodiment of the utility model, the ramp further comprises: a transition plate;

[0018] The transition plate is arranged at one end of the first telescopic arm close to the base, and the upper surface of the transition plate is a curved surface.

[0019] In one embodiment of the utility model, it also includes: a transport fixing bracket;

[0020] The transport fixing bracket comprises a first fixing portion and a second fixing portion connected to each other, wherein the first fixing portion and the second fixing portion are perpendicular to each other;

[0021] One end of the first fixing portion extending away from the second fixing portion is detachably connected to the ramp;

[0022] One end of the second fixing portion extending away from the first fixing portion is detachably connected to the base.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The utility model discloses a retractable ramp controlled by double hydraulic cylinders. The ramp adopts a two-stage telescopic structure driven by double hydraulic cylinders, which improves the working stroke of the ramp, enables it to adapt to different drilling platform heights, has good applicability, and saves costs. Moreover, the hydraulic cylinders are arranged one outside and one inside, which also protects the hydraulic cylinders. The hydraulic pipelines can also be wired from the inside, which can effectively avoid natural aging and accidental damage such as erosion and impact, greatly improve the service life of the hydraulic system, and further improve work efficiency due to the reduction of accidents. The use of hydraulic cylinders to drive telescopic can not only provide a safe and reliable power source, but also reduce the welding workload of the ramp, so that the welding deformation is effectively controlled and the assembly accuracy is improved. The ramp can be rotatably arranged on the base. When working, the ramp is turned outward at a certain angle to overlap with the drilling platform; when transporting, the ramp is rotated inward and retracted to be parallel to the base, which is convenient for transportation.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following specifically cites the preferred embodiments and describes them in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural top view of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the ramp structure of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model;

[0028] Figure 3 It is a cross-sectional view of a ramp structure of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the working state of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model;

[0030] Figure 5 It is a schematic diagram of the transport state of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model.

[0031] Icon: 100- ramp; 110- first telescopic arm; 120- second telescopic arm; 130- third telescopic arm; 140- first hydraulic cylinder; 150- second hydraulic cylinder; 200- supporting arm; 300- transport fixed bracket; 1- base. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, a retractable ramp controlled by a double hydraulic cylinder proposed in accordance with the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] The above and other technical contents, features and effects of the utility model are clearly presented in the following detailed description of the specific implementation mode in conjunction with the accompanying drawings. Through the description of the specific implementation mode, the technical means and effects adopted by the utility model to achieve the predetermined purpose can be more deeply and specifically understood. However, the attached drawings are only for reference and explanation, and are not used to limit the technical solution of the utility model.

[0034] Embodiment 1

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a top view of the structure of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model; Figure 2 It is a schematic diagram of the ramp structure of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model; Figure 3 It is a cross-sectional view of the ramp structure of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model.

[0036] As shown in the figure, the telescopic ramp controlled by double hydraulic cylinders of the utility model comprises: a ramp 100 and a support arm 200; the ramp 100 is rotatably connected to the base 1, and the ramp 100 can be rotated to be parallel to the base 1; the ramp 100 is a two-stage telescopic structure driven by two hydraulic cylinders, comprising a first telescopic arm 110, a second telescopic arm 120, a third telescopic arm 130, a first hydraulic cylinder 140 and a second hydraulic cylinder 150; the ramp 100 and the base 1 are also connected through the support arm 200, that is, the support arm 200 is used to connect the ramp 100 and the base 1 and provide support for the ramp 100.

[0037] In this embodiment, the first telescopic arm 110 is rotatably connected to the base 1, and the first telescopic arm 110, the second telescopic arm 120, and the third telescopic arm 130 are sequentially arranged from the inside to the outside, and the third telescopic arm 130 can approach or move away from the second telescopic arm 120 in a direction parallel to its central axis, that is, the second telescopic arm 120 can retract or extend the third telescopic arm 130 in a direction parallel to its central axis; similarly, the first telescopic arm 110 can also retract or extend the second telescopic arm 120 in a direction parallel to its central axis. Furthermore, since one end of the first telescopic arm 110 is rotatably connected to the base 1, the first telescopic arm 110 itself only performs rotational movement, and the first hydraulic cylinder 140 drives the second telescopic arm 120 to move away from or closer to the first telescopic arm 110; similarly, the second hydraulic cylinder 150 drives the third telescopic arm 130 to move away from or closer to the second telescopic arm 120, thereby realizing a change in the length of the ramp 100, that is, realizing a change in the working stroke of the power catwalk, so that it can be adapted to different drilling platform heights, thereby improving the applicability of the ramp 100.

[0038] In this embodiment, the first hydraulic cylinder 140 is located inside the second telescopic arm 120, and the two ends of the first hydraulic cylinder 140 are respectively connected to the first telescopic arm 110 and the second telescopic arm 120; the second hydraulic cylinder 150 is located outside the second telescopic arm 120, and the two ends of the second hydraulic cylinder 150 are respectively connected to the second telescopic arm 120 and the third telescopic arm 130. By arranging the two hydraulic cylinders one outside and one inside, the hydraulic cylinders are protected, and the hydraulic pipelines can also be routed from the inside, which can effectively avoid natural aging and accidental damage such as erosion and impact, greatly improving the service life of the hydraulic system, and further improving the work efficiency due to the reduction of accidents in the hydraulic system.

[0039] In an optional embodiment, the first hydraulic cylinder 140 and the second hydraulic cylinder 150 are both single-acting telescopic hydraulic cylinders, and the central axes of the first hydraulic cylinder 140 and the second hydraulic cylinder 150 are parallel to each other. The two hydraulic cylinders work independently without affecting each other, thereby improving the telescopic control performance of the ramp 100.

[0040] It is worth noting that the use of hydraulic cylinders to drive telescopic movement can not only provide a safe and reliable power source for the telescopic movement of the ramp 100, but also reduce the welding workload of the ramp 100. The telescopic arms at each level are no longer welded but can move relative to each other, thereby effectively controlling welding deformation and improving the accuracy of assembly and movement.

[0041] In an optional embodiment, a V-shaped groove is provided on the first telescopic arm 110, the second telescopic arm 120 and the third telescopic arm 130, and the height of the middle position of the V-shaped groove is lower than the height of the two sides thereof. The V-shaped grooves of the first telescopic arm 110, the second telescopic arm 120 and the third telescopic arm 130 are all in the same direction. The pipes are transported in the V-shaped grooves, which can better control the position of the pipes in the ramp 100.

[0042] Please refer to Figure 4 and Figure 5 , Figure 4 It is a schematic diagram of the working state of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model; Figure 5 It is a schematic diagram of the transport state of a retractable ramp controlled by double hydraulic cylinders provided in an embodiment of the utility model.

[0043] As shown in the figure, the retractable ramp controlled by the double hydraulic cylinders of the utility model has two states, namely, the working state and the transport state; in the working state, the first hydraulic cylinder 140 and the second hydraulic cylinder 150 are extended respectively to extend the ramp 100 to match the height of the drilling platform, and the ramp 100 is also driven by an external crane to rotate a certain angle, and the pipes on the base 1 are driven by the pipe conveying mechanism to move along the base 1 to the ramp 100, and continue to be transported to the drilling platform along the ramp 100. In the transport state, the first hydraulic cylinder 140 and the second hydraulic cylinder 150 are retracted respectively to drive the retracting of the telescopic arms at all levels, and the ramp 100 is also rotated to be parallel to the base 1 for easy transportation.

[0044] In an optional embodiment, the ramp 100 also includes: a transition plate; the transition plate is arranged at one end of the first telescopic arm 110 close to the base 1, and the upper surface of the transition plate is an arc surface. When the pipe is driven onto the ramp 100 by the pipe conveying mechanism, the arc surface setting of the transition plate can prevent the pipe from getting stuck or sideways when passing through the ramp 100, so as to achieve a smooth transition.

[0045] In an optional embodiment, it further includes: a transport fixing bracket 300; the transport fixing bracket 300 includes a first fixing portion and a second fixing portion connected, the first fixing portion and the second fixing portion being perpendicular to each other; one end of the first fixing portion extending away from the second fixing portion is detachably connected to the ramp 100; one end of the second fixing portion extending away from the first fixing portion is detachably connected to the base 1. The transport fixing bracket 300 is used to fix the ramp 100 in the transport state, thereby improving the transport stability of the ramp 100. In the working state, the transport fixing bracket 300 can be removed.

[0046] The telescopic ramp controlled by double hydraulic cylinders provided in the embodiment of the utility model adopts a two-stage telescopic structure driven by double hydraulic cylinders, which improves the working stroke of the ramp, enables it to adapt to different drilling platform heights, has good applicability, and saves costs. In addition, the hydraulic cylinders are arranged one outside and one inside, which also protects the hydraulic cylinders. The hydraulic pipeline can also be wired from the inside, which can effectively avoid natural aging and accidental damage such as erosion and impact, greatly improve the service life of the hydraulic system, and further improve work efficiency due to the reduction of accidents. Using hydraulic cylinders to drive telescopic can not only provide a safe and reliable power source, but also reduce the welding workload of the ramp, so that the welding deformation is effectively controlled and the assembly accuracy is improved. The ramp can be rotatably arranged on the base. When working, the ramp flips outward at a certain angle to overlap with the drilling platform; when transporting, the ramp rotates inward and retracts to be parallel to the base for easy transportation.

[0047] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant is intended to cover non-exclusive inclusion, so that the article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or device including the elements. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The orientation or position relationship indicated by "up", "down", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0048] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A retractable ramp controlled by double hydraulic cylinders, characterized in that: include: A ramp (100) and a support arm (200); The ramp (100) is rotatably connected to the base (1), and the ramp (100) can be rotated to be parallel to the base (1); The support arm (200) is respectively connected to the base (1) and the ramp (100); Wherein, the ramp (100) comprises a first telescopic arm (110), a second telescopic arm (120), a third telescopic arm (130), a first hydraulic cylinder (140) and a second hydraulic cylinder (150); The first telescopic arm (110) is rotatably connected to the base (1); The first telescopic arm (110), the second telescopic arm (120), and the third telescopic arm (130) are sequentially sleeved from the inside to the outside; The first hydraulic cylinder (140) is located inside the second telescopic arm (120), and two ends of the first hydraulic cylinder (140) are respectively connected to the first telescopic arm (110) and the second telescopic arm (120); The second hydraulic cylinder (150) is located outside the second telescopic arm (120), and two ends of the second hydraulic cylinder (150) are respectively connected to the second telescopic arm (120) and the third telescopic arm (130); The central axes of the first hydraulic cylinder (140) and the second hydraulic cylinder (150) are parallel to each other.

2. The double hydraulic cylinder controlled retractable ramp according to claim 1, characterized in that: The first telescopic arm (110), the second telescopic arm (120) and the third telescopic arm (130) are all provided with a V-shaped slide groove, and the height of the middle position of the V-shaped slide groove is lower than the height of two sides thereof.

3. The double hydraulic cylinder controlled retractable ramp according to claim 1, characterized in that: The first hydraulic cylinder (140) and the second hydraulic cylinder (150) are both single-acting telescopic hydraulic cylinders.

4. The double hydraulic cylinder controlled retractable ramp according to claim 1, characterized in that: The ramp (100) further comprises: a transition plate; The transition plate is arranged at one end of the first telescopic arm (110) close to the base (1), and the upper surface of the transition plate is a curved surface.

5. The double hydraulic cylinder controlled retractable ramp according to claim 1, characterized in that: Also includes: Transport fixing bracket (300); The transport fixing bracket (300) comprises a first fixing portion and a second fixing portion connected to each other, wherein the first fixing portion and the second fixing portion are perpendicular to each other; One end of the first fixing portion extending away from the second fixing portion is detachably connected to the ramp (100); One end of the second fixing portion extending away from the first fixing portion is detachably connected to the base (1).

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