Hydraulic unloading driller room support

Abstract

The utility model relates to a hydraulic unloading driller room support, which belongs to the field of petroleum drilling equipment and comprises a support body, a first rotary component, a second rotary component and a hydraulic unloading system. The first rotation assembly is arranged on one side of the support body, and the second rotation assembly is arranged in the middle of the support body. The first rotary assembly comprises an unloading cylinder body and a rotary piston, and the rotary piston is rotationally connected with the unloading cylinder body and can slide relative to the unloading cylinder body; the hydraulic unloading system is used for supplying oil to the first rotary assembly and comprises an oil inlet tank, a hydraulic pump, a one-way valve, a reversing valve, an overflow valve and an oil return tank. The oil inlet tank, the hydraulic pump and the one-way valve are sequentially connected; the reversing valve is connected with the unloading cylinder body through a pipeline, and the overflow valve is connected with the oil return tank. According to the utility model, a part of load is counteracted through hydraulic pressure, namely, a part of total load is borne by hydraulic pressure, so that the use safety performance is enhanced, and the service life of parts is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of oil drilling equipment, and particularly relates to a hydraulic unloading driller's cabin support. Background Art

[0002] The driller's cabin is the control center of today's oil drilling rig and is known as the "heart" of the oil drilling rig in the industry. The driller's cabin is arranged on the driller's platform, and its functions include controlling drilling equipment and displaying drilling working parameters. Since it is equipped with many display instruments and explosion-proof control boxes, its overall weight is relatively heavy. During the upward movement of the entire driller's platform, affected by the load of the driller's cabin, the driller's platform bends to one side. At this time, the driller's cabin support also receives a large bending torque, especially stress concentration occurs at the connection, which affects the mechanical properties of the component and also has an impact on the use safety performance, resulting in a decrease in the service life of the device. At the same time, the load of the driller's cabin will also bring a large load to the sliding shaft of the driller's platform. To ensure mechanical properties, it is necessary to increase the wall thickness of the guide rail, which increases the processing difficulty and processing cost. Therefore, a driller's cabin support capable of sharing the load of the driller's cabin is needed. Content of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the utility model provides a hydraulic unloading driller's cabin support. The technical problems to be solved by the utility model are realized through the following technical solutions:

[0004] The utility model provides a hydraulic unloading driller's cabin support, including: a support body, a first slewing assembly, a second slewing assembly, and a hydraulic unloading system; the first slewing assembly is arranged on one side of the support body, and the second slewing assembly is arranged in the middle of the support body; the first slewing assembly includes: a unloading cylinder body and a slewing piston, the slewing piston is coaxially arranged with the unloading cylinder body, the slewing piston is rotatably connected to the unloading cylinder body, and the slewing piston can slide relative to the unloading cylinder body along its central axis direction; the hydraulic unloading system is used to supply oil to the first slewing assembly, and the hydraulic unloading system includes: an oil inlet tank, a hydraulic pump, a check valve, a reversing valve, a relief valve, and an oil return tank; the oil inlet tank, the hydraulic pump, and the check valve are connected in sequence; both the check valve and the relief valve are connected to the reversing valve, the reversing valve is connected to the unloading cylinder body through a pipeline, and the relief valve is connected to the oil return tank.

[0005] In an embodiment of the utility model, a unloading cavity is arranged between the unloading cylinder body and the slewing piston.

[0006] In an embodiment of the utility model, the reversing valve is connected to the unloading cavity and an external lifting cylinder through pipelines respectively.

[0007] In an embodiment of the utility model, the slewing piston is connected to the unloading cylinder body through a slewing bearing.

[0008] In an embodiment of the present utility model, the reversing valve is a three-position four-way reversing valve.

[0009] In an embodiment of the present utility model, the hydraulic unloading system further includes: a filter, the oil inlet tank is connected to the filter, and the filter is also connected to the hydraulic pump.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] For the hydraulic unloading driller's cabin support of the present utility model, the first slewing assembly forms a piston cylinder and is connected to a hydraulic unloading system. A part of the load is offset by the hydraulic pressure, that is, a part of the total load is borne by the hydraulic pressure, thereby improving the load condition of the driller's platform. The bending torque on the driller's cabin support is also reduced accordingly, improving the mechanical properties of the component, enhancing the use safety performance, and extending the service life of the component. And due to the improvement of the load condition, the wall thickness of the guide rail can be reduced, resulting in a reduction in the overall weight, as well as a reduction in the processing difficulty and processing cost.

[0012] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following preferred embodiments are specifically given and described in detail in conjunction with the accompanying drawings as follows. Description of the Drawings

[0013] Figure 1 is the main structural view of a hydraulic unloading driller's cabin support provided by an embodiment of the present utility model;

[0014] Figure 2 is the side structural view of a hydraulic unloading driller's cabin support provided by an embodiment of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the hydraulic unloading system provided by an embodiment of the present utility model.

[0016] Reference numerals: 1 - support body; 2 - first slewing assembly; 21 - unloading cylinder body; 22 - slewing piston; 23 - unloading cavity; 24 - slewing bearing; 3 - second slewing assembly; 10 - hydraulic unloading system; 11 - oil inlet tank; 12 - filter; 13 - hydraulic pump; 14 - check valve; 15 - reversing valve; 16 - overflow valve; 17 - oil return tank; 100 - driller's platform; 200 - driller's cabin; 300 - balance beam assembly; 400 - guide rail; 500 - lifting oil cylinder; 600 - chain assembly. Detailed Embodiments

[0017] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following provides a detailed description of a hydraulic unloading driller's cabin support proposed according to the present utility model in combination with the accompanying drawings and specific embodiments.

[0018] The foregoing and other technical contents, features, and effects of the present utility model can be clearly presented in the following detailed description of the specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding of the technical means and effects adopted by the present utility model to achieve the intended purpose can be obtained. However, the accompanying drawings are only for reference and illustration, and are not used to limit the technical solution of the present utility model.

[0019] Embodiment 1

[0020] As Figure 1 and Figure 2 shown, the driller's cabin 200 is arranged on the driller's platform 100. The driller's cabin 200 and the driller's platform 100 are integrally arranged on the driller's cabin support. Both ends of the balance beam assembly 300 are slidably connected to the guide rail 400. The chain assembly 600 is respectively connected to the balance beam assembly 300 and the driller's cabin support. One end of the lifting oil cylinder 500 is connected to the balance beam assembly 300. As the lifting oil cylinder 500 extends, it drives the balance beam assembly 300 to move upward along the guide rail 400, and then drives the driller's cabin support to move by the chain assembly 600. The process of the lifting oil cylinder 500 retracting is similar. The balance beam assembly 300 moves downward along the guide rail 400, and then drives the driller's cabin support to move by the chain assembly 600. Since the weight of the driller's cabin 200 is relatively heavy, and the driller's cabin support is only connected to the chain assembly 600 on one side, the force at the connection position is relatively large. The driller's cabin support and the driller's platform 100 itself are also subjected to a relatively large bending torque. Similarly, the load borne by the sliding shafts on both sides of the balance beam assembly 300 is also relatively large. To improve the mechanical properties, it is necessary to increase the wall thickness of the guide rail, which increases the overall processing difficulty and processing cost. In view of this, it is necessary to share the weight load of the driller's cabin 200.

[0021] As Figures 1 to 3 shown, the present embodiment provides a hydraulic unloading driller's cabin support, including: a support body 1, a first slewing assembly 2, a second slewing assembly 3, and a hydraulic unloading system 10; the first slewing assembly 2 is arranged on one side of the support body 1, and the second slewing assembly 3 is arranged in the middle of the support body 1; the first slewing assembly 2 includes: a unloading cylinder body 21 and a slewing piston 22. The slewing piston 22 is coaxially arranged with the unloading cylinder body 21. The slewing piston 22 is rotatably connected to the unloading cylinder body 21, and the slewing piston 22 can slide relative to the unloading cylinder body 21 along its central axis direction.

[0022] In an alternative embodiment, the rotary piston 22 is connected to the unloading cylinder block 21 through a rotary bearing 24 to make the rotation of the rotary piston 22 smoother.

[0023] In an alternative embodiment, an unloading cavity 23 is provided between the unloading cylinder block 21 and the rotary piston 22. Specifically, the upper end of the rotary piston 22 is fixedly connected to the bracket body 1, a rotary bearing 24 is provided between the lower end of the rotary piston 22 and the unloading cylinder block 21, and a protruding piston portion is provided on the outer side wall of the rotary piston 22, and the piston portion is located in the unloading cavity 23; the outer wall of the unloading cylinder block 21 is fixedly connected to the chain assembly 600.

[0024] The principle is as follows: The unloading cylinder block 21 and the rotary piston 22 form a piston cylinder. A part of the total load on the driller's console bracket can be borne by the hydraulic pressure, and at the same time, it can also provide buffering during movement, so that the driller's platform 100 can remain horizontal. The rotary piston 22 is rotatably connected to the unloading cylinder block 21, so that the bracket body 1 and the driller's platform 100 and the driller's console 200 thereon can rotate as a whole, and the second rotary assembly 3 is used to rotate the driller's console 200.

[0025] As Figure 3 shown, the hydraulic unloading system 10 is used to supply oil to the first rotary assembly 2. The hydraulic unloading system 10 includes: an oil inlet tank 11, a hydraulic pump 13, a check valve 14, a directional control valve 15, a relief valve 16 and an oil return tank 17; the oil inlet tank 11, the hydraulic pump 13 and the check valve 14 are connected in sequence; both the check valve 14 and the relief valve 16 are connected to the directional control valve 15, the directional control valve 15 is connected to the unloading cylinder block 21 through a pipeline, and the relief valve 16 is connected to the oil return tank 17.

[0026] In an alternative embodiment, the directional control valve 15 is connected to the unloading cavity 23 through a pipeline, that is, the unloading cavity 23 is filled with oil or returns oil through the directional control valve 15.

[0027] In an alternative embodiment, the hydraulic unloading system 10 is also used to supply oil to an external lifting cylinder 500, and the directional control valve 15 is connected to the unloading cavity 23 and the lifting cylinder 500 through pipelines respectively.

[0028] Preferably, the directional control valve 15 can be a three-position four-way directional control valve.

[0029] In an alternative embodiment, the hydraulic unloading system 10 further includes: a filter 12. The oil inlet tank 11 is connected to the filter 12, and the filter 12 is also connected to the hydraulic pump 13. Before the oil from the oil inlet tank 11 enters the unloading cavity 23, it is first filtered through the filter 12 to prevent impurities in the oil inlet tank 11 and the pipeline from entering the unloading cavity 23.

[0030] The principle is as follows: The oil inlet oil tank 11, filter 12, hydraulic pump 13 and check valve 14 form an oil inlet circuit, and the relief valve 16 and the oil return oil tank 17 form an oil return circuit. When oil is inlet, the hydraulic oil flows from the oil inlet oil tank 11 through the filter 12, hydraulic pump 13 and check valve 14 in sequence to reach the directional control valve 15. When oil is returned, it returns from the directional control valve 15 through the relief valve 16 to the oil return oil tank 17. Among them, in addition to controlling the oil inlet and oil return circuits, the directional control valve 15 can also control the process of supplying oil to the first slewing assembly 2 and the lifting cylinder 500.

[0031] The working principle of the hydraulic unloading driller's console support in this embodiment is as follows: The driller's console support, the driller's platform 100 and the driller's console 200 thereon are adjusted in height by the lifting cylinder 500. During the adjustment process, the hydraulic unloading system 10 can supply oil to the lifting cylinder 500 and the first slewing assembly 2 at the same time. By continuously supplying oil to the first slewing assembly 2, after a certain pressure is reached in the unloading cylinder block 21, the directional control valve 15 is adjusted to the neutral position and maintained in the pressure-holding state. At this time, a part of the load is offset by the hydraulic pressure in the first slewing assembly 2.

[0032] For the hydraulic unloading driller's console support of the present utility model, the first slewing assembly forms a piston cylinder and is connected with a hydraulic unloading system. A part of the load is offset by the hydraulic pressure, that is, a part of the total load is borne by the hydraulic pressure, thereby improving the load condition of the driller's platform. The bending torque received by the driller's console support is also reduced accordingly, improving the mechanical properties of the component, enhancing the use safety performance and prolonging the service life of the component. And due to the improvement of the load condition, the wall thickness of the guide rail can be reduced, so that the overall weight is reduced, and the processing difficulty and processing cost are also reduced accordingly.

[0033] It should be noted that in this text, 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 any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant is intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the article or device comprising the element. Similar words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The orientation or positional relationship indicated by "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present 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 thus should not be construed as a limitation of the present utility model.

[0034] The above content is a further detailed description of the present utility model in conjunction with specific preferred embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A hydraulic unloading drill room support, characterized in that: include: A support body (1), a first rotating assembly (2), a second rotating assembly (3) and a hydraulic unloading system (10); The first rotary assembly (2) is arranged on one side of the support body (1), and the second rotary assembly (3) is arranged in the middle of the support body (1); the first rotary assembly (2) comprises: a unloading cylinder (21) and a rotary piston (22); the rotary piston (22) is coaxially arranged with the unloading cylinder (21); the rotary piston (22) is rotatably connected to the unloading cylinder (21), and the rotary piston (22) can slide relative to the unloading cylinder (21) along the direction of its central axis; The hydraulic unloading system (10) is used to supply oil to the first rotary component (2), and the hydraulic unloading system (10) comprises: an oil inlet tank (11), a hydraulic pump (13), a non-return valve (14), a reversing valve (15), a relief valve (16) and an oil return tank (17); the oil inlet tank (11), the hydraulic pump (13) and the non-return valve (14) are connected in sequence; the non-return valve (14) and the relief valve (16) are both connected to the reversing valve (15); the reversing valve (15) is connected to the unloading cylinder (21) via a pipeline; and the relief valve (16) is connected to the oil return tank (17).

2. The hydraulic unloading drill room support according to claim 1, characterized in that: A unloading cavity (23) is provided between the unloading cylinder (21) and the rotary piston (22).

3. The hydraulic unloading drill room support according to claim 2 is characterized in that: The reversing valve (15) is respectively connected to the unloading chamber (23) and the external lifting cylinder (500) through pipelines.

4. The hydraulic unloading drill room support according to claim 1, characterized in that: The rotary piston (22) is connected to the unloading cylinder (21) via a rotary bearing (24).

5. The hydraulic unloading drill room support according to claim 1, characterized in that: The reversing valve (15) is a three-position four-way reversing valve.

6. The hydraulic unloading drill room support according to claim 1, characterized in that: The hydraulic unloading system (10) further comprises: a filter (12), the oil inlet tank (11) is connected to the filter (12), and the filter (12) is also connected to the hydraulic pump (13).

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