Turntable transmission system with vertical shaft input

Abstract

The utility model relates to a vertical shaft input turntable transmission system, which belongs to the field of petroleum drilling and production equipment and comprises a vertical input shaft turntable, a transmission shaft, an angle box, a clutch and a reduction gearbox. The vertical input shaft rotary table comprises a rotary table assembly and an input shaft assembly. The axis directions of the turntable assembly and the input shaft assembly are parallel to each other; the input shaft assembly is coaxially connected with the transmission shaft; the transmission shaft is arranged in the vertical direction and sequentially connected with the angle box, the clutch and the reduction gearbox. The reduction gearbox is in transmission connection with the winch through a chain. The input shaft assembly of the rotating disc is arranged in the vertical direction, meanwhile, the reduction gearbox obtains power from the winch through chain transmission, torque is transmitted through the clutch, the angle box and the transmission shaft in sequence, the transmission structure is simplified, and manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of petroleum drilling equipment, and in particular relates to a rotary table transmission system with vertical shaft input. Background Art

[0002] The existing rotary table transmission system for oil drilling rigs uses a low-position winch as the power source. The lower angle box is installed on the winch, and the power is obtained from the winch, transmitted to the upper angle box through the transmission shaft, and then transmitted to the rotary table through the reduction box and chain box in turn. Figure 1 and Figure 2 As shown, in an existing turntable transmission system, the winch is set at a low position, and the output is transmitted to the third transmission shaft through the lower angle box, and then passes through the upper angle box, clutch, reduction box, second transmission shaft, chain box and first transmission shaft in sequence, and finally the first transmission shaft transmits the torque to the turntable. The axis of the input shaft of the turntable is in the horizontal direction, and the axis of the output end of the turntable is in the vertical direction, that is, the axis of the input shaft and the axis of the output end are perpendicular to each other. Such a setting makes the transmission structure of the turntable transmission system multi-complicated and the manufacturing cost high. Therefore, a turntable transmission system with a simplified transmission structure is needed. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a turntable transmission system with vertical shaft input. The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0004] The utility model provides a turntable transmission system with vertical shaft input, comprising: a vertical input shaft turntable, a transmission shaft, an angle box, a clutch and a reduction box; the vertical input shaft turntable comprises: a turntable assembly and an input shaft assembly; the axial directions of the turntable assembly and the input shaft assembly are parallel to each other; the input shaft assembly is coaxially connected to the transmission shaft; the transmission shaft is arranged in the vertical direction and is sequentially connected to the angle box, the clutch and the reduction box; the reduction box is connected to the winch through a chain drive.

[0005] In one embodiment of the present invention, the vertical input shaft turntable is placed on the drilling platform, and the axial directions of the turntable assembly and the input shaft assembly are perpendicular to the table surface of the drilling platform.

[0006] In one embodiment of the present invention, the vertical input shaft turntable further comprises: a housing, and the turntable assembly and the input shaft assembly are both disposed in the housing.

[0007] In one embodiment of the utility model, the turntable assembly includes: a turntable and a bushing, the turntable is coaxially sleeved outside the bushing, and the axial directions of the turntable and the bushing are perpendicular to the table surface of the drilling platform; the vertical input shaft turntable also includes: a main bearing and an auxiliary bearing, the main bearing and the auxiliary bearing are spaced apart and coaxially sleeved outside the turntable respectively.

[0008] In one embodiment of the utility model, the vertical input shaft turntable further includes: a large gear and a small gear; the large gear is coaxially connected to the turntable, the small gear is coaxially connected to the input shaft assembly, and the large gear and the small gear are meshed with each other.

[0009] In one embodiment of the present invention, both the large gear and the small gear are cylindrical gears.

[0010] In one embodiment of the present utility model, an extension portion is provided at one end of the input shaft assembly, the extension portion extends out of the housing, and an input shaft flange is sleeved on the extension portion.

[0011] In one embodiment of the utility model, an inertia brake is provided on the reduction box.

[0012] In one embodiment of the utility model, a sprocket is provided at the input end of the reduction box, and a chain guard is provided between the sprocket and the output end of the winch.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a turntable transmission system with vertical shaft input, in which the input shaft assembly of the turntable is arranged in the vertical direction, and at the same time, the reduction box obtains power from the winch through chain drive, and then transmits torque in sequence through the clutch, angle box and transmission shaft, thereby simplifying the transmission structure and reducing the manufacturing cost.

[0015] 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 preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an existing turntable transmission system (front view);

[0017] Figure 2 It is a structural schematic diagram of an existing turntable transmission system (viewed from above);

[0018] Figure 3 It is a structural schematic diagram of a turntable transmission system with a vertical shaft input according to an embodiment of the utility model (front view);

[0019] Figure 4 It is a structural schematic diagram of a turntable transmission system with a vertical shaft input according to an embodiment of the utility model (viewed from above);

[0020] Figure 5 It is a structural cross-sectional view of a vertical input shaft turntable of an embodiment of the utility model;

[0021] Figure 6 It is a structural front view of a vertical input shaft turntable of an embodiment of the utility model;

[0022] Figure 7 It is a structural top view of a vertical input shaft turntable according to an embodiment of the utility model.

[0023] Icons: 100-vertical input shaft turntable; 101-housing; 102-turntable assembly; 1021-turntable; 1022-bushing core; 103-large gear; 104-small gear; 105-input shaft assembly; 106-main bearing; 107-auxiliary bearing; 108-input shaft flange; 200-drive shaft; 300-angle box; 400-clutch; 500-reduction box; 600-chain guard; 10-winch. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, a turntable transmission system with a vertical shaft input proposed by the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] 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.

[0026] Embodiment 1

[0027] like Figure 3 and Figure 4 As shown, this embodiment provides a turntable transmission system with a vertical shaft input, including: a vertical input shaft turntable 100, a transmission shaft 200, an angle box 300, a clutch 400 and a reduction box 500, the vertical input shaft turntable 100, the transmission shaft 200, the angle box 300, the clutch 400 and the reduction box 500 are sequentially connected in transmission, wherein the reduction box 500 is connected to the winch 10 through a chain drive.

[0028] like Figure 3 and Figure 4 As shown, in an optional embodiment, a sprocket is provided at the input end of the reduction box 500, and a drum shaft sprocket is also provided at the output end of the winch 10. The two sprockets are driven by a chain, that is, the reduction box 500 is directly powered by the chain.

[0029] Preferably, a chain guard 600 is provided between the sprocket at the input end of the reduction box 500 and the output end of the winch 10 to ensure chain lubrication.

[0030] Optionally, the reduction box 500 is provided with an inertia brake.

[0031] like Figures 3 to 7 As shown, in this embodiment, the vertical input shaft turntable 100 includes: a turntable assembly 102 and an input shaft assembly 105; the axis directions of the turntable assembly 102 and the input shaft assembly 105 are parallel to each other, and the input shaft assembly 105 is coaxially connected to the transmission shaft 200. The transmission shaft 200 is arranged in the vertical direction and is sequentially connected to the angle box 300, the clutch 400 and the reduction box 500.

[0032] Specifically, the axial directions of the rotary table assembly 102 and the input shaft assembly 105 are both perpendicular to the tabletop of the drilling platform.

[0033] like Figure 5 and Figure 6 As shown, in an optional embodiment, the vertical input shaft turntable 100 further includes: a housing 101 , a turntable assembly 102 and an input shaft assembly 105 are both disposed in the housing 101 , and the turntable assembly 102 can rotate in the housing 101 .

[0034] like Figure 5 As shown, in an optional embodiment, the turntable assembly 102 includes: a turntable 1021 and a bushing 1022, the turntable 1021 is coaxially sleeved outside the bushing 1022, and the axis directions of the turntable 1021 and the bushing 1022 are perpendicular to the table surface of the drilling platform; the vertical input shaft turntable 100 also includes: a main bearing 106 and an auxiliary bearing 107, the main bearing 106 and the auxiliary bearing 107 are arranged at intervals and coaxially sleeved outside the turntable 1021. Specifically, a connection structure is provided in the housing 101, the main bearing 106 is installed on the turntable 1021 and is jointly seated on the connection structure in the housing 101, and the auxiliary bearing 107 is provided at the lower end of the turntable 1021 and is seated on the connection structure in the housing 101, so that the turntable assembly 102 can not only bear the static load from the outside, but also realize the transmission of large torque in the drilling operation.

[0035] like Figure 5 As shown, in an optional embodiment, the vertical input shaft turntable 100 further includes: a large gear 103 and a small gear 104; the large gear 103 is coaxially connected to the turntable 1021, the small gear 104 is coaxially connected to the input shaft assembly 105, and the large gear 103 and the small gear 104 are meshed with each other.

[0036] Preferably, both the large gear 103 and the small gear 104 are cylindrical gears, and the two cylindrical gears also have central axes that are parallel to each other.

[0037] like Figure 3 , Figure 5 and Figure 6 As shown, in an optional embodiment, an extension portion is provided at one end of the input shaft assembly 105 , the extension portion extends out of the housing 101 , an input shaft flange 108 is sleeved on the extension portion, and the transmission shaft 200 is connected via the input shaft flange 108 .

[0038] The working principle of the vertical input shaft turntable 100 of this embodiment is as follows: one end of the input shaft assembly 105 is connected to the transmission shaft 200 through the input shaft flange 108, the transmission shaft 200 transmits torque and drives the input shaft assembly 105 to rotate, and a small gear 104 is sleeved on the other end of the input shaft assembly 105, the small gear 104 is meshed with the large gear 103, the large gear 103 is sleeved on the turntable 1021, and the turntable assembly 102 is driven to rotate through gear transmission, and a main bearing 106 and an auxiliary bearing 107 are also sleeved on the outside of the turntable assembly 102, which are driven by cylindrical gear meshing, wherein the axial directions of the input shaft assembly 105 and the turntable assembly 102 are both arranged in the vertical direction.

[0039] It is worth noting that by optimizing the internal structure of the vertical input shaft turntable 100 , it is ensured that the same function as the existing turntable is achieved while the external dimensions of the housing 101 remain unchanged or even reduced.

[0040] The working principle of the rotary table transmission system with vertical shaft input in this embodiment is as follows: the vertical input shaft rotary table 100 is placed on the drilling platform as the output end of the rotary table transmission system, and is used to transmit torque and twist the drill pipe. The winch 10 is set at a low position. The winch 10 as a power source transmits torque upward in space, and finally inputs from the input shaft assembly 105 through a series of structures in the transmission system. The output end of the winch 10 is output by a sprocket, and is directly transmitted to the sprocket at the input end of the reduction box 500 through a chain drive. The output speed or torque of the winch 10 can be controlled through the reduction box 500. The torque is transmitted between the output end of the reduction box 500 and the input end of the angle box 300 through a clutch 400. The torque is transmitted between the output end of the angle box 300 and the input shaft assembly 105 through a vertically arranged transmission shaft 200. The drawworks 10 has two-speed input and the reduction gearbox 500 also has two-speed transmission, so that the vertical input shaft turntable 100 can obtain 4 forward gear speeds and 2 reverse gear speeds. Combined with the pneumatically controlled clutch 400 and inertia brake, remote control from the driller platform can be achieved, achieving the same or even better working performance compared with the existing transmission structure.

[0041] It is worth noting that by simplifying the transmission system structure and shortening the transmission path, the turntable transmission system with vertical shaft input in this embodiment reduces one chain box, one angle box and two transmission shafts while achieving the same working performance, thereby reducing production and use costs and making maintenance more convenient.

[0042] The utility model discloses a turntable transmission system with vertical shaft input, in which the input shaft assembly of the turntable is arranged in the vertical direction, and at the same time, the reduction box obtains power from the winch through chain drive, and then transmits torque in sequence through the clutch, angle box and transmission shaft, thereby simplifying the transmission structure and reducing the manufacturing cost.

[0043] 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.

[0044] 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 turntable transmission system with vertical axis input, characterized in that: include: A vertical input shaft rotary plate (100), a transmission shaft (200), an angle box (300), a clutch (400) and a reduction box (500); The vertical input shaft turntable (100) comprises: a turntable assembly (102) and an input shaft assembly (105); the axial directions of the turntable assembly (102) and the input shaft assembly (105) are parallel to each other; the input shaft assembly (105) is coaxially connected to the transmission shaft (200); The transmission shaft (200) is arranged in a vertical direction and is sequentially connected to the angle box (300), the clutch (400) and the reduction box (500); the reduction box (500) is connected to the winch (10) through a chain drive.

2. The turntable transmission system with vertical shaft input according to claim 1, characterized in that: The vertical input shaft turntable (100) is placed on a drilling platform, and the axial directions of the turntable assembly (102) and the input shaft assembly (105) are both perpendicular to the tabletop of the drilling platform.

3. The turntable transmission system with vertical shaft input according to claim 1, characterized in that: The vertical input shaft turntable (100) further comprises: a housing (101), wherein the turntable assembly (102) and the input shaft assembly (105) are both arranged in the housing (101).

4. The turntable transmission system with vertical shaft input according to claim 2, characterized in that: The turntable assembly (102) comprises: a turntable (1021) and a bushing (1022); the turntable (1021) is coaxially sleeved outside the bushing (1022); and the axial directions of the turntable (1021) and the bushing (1022) are both perpendicular to the tabletop of the drilling platform; The vertical input shaft turntable (100) further comprises: a main bearing (106) and an auxiliary bearing (107); the main bearing (106) and the auxiliary bearing (107) are arranged at intervals and are respectively coaxially sleeved outside the turntable (1021).

5. The turntable transmission system with vertical shaft input according to claim 4, characterized in that: The vertical input shaft turntable (100) further comprises: a large gear (103) and a small gear (104); the large gear (103) is coaxially connected to the turntable (1021), the small gear (104) is coaxially connected to the input shaft assembly (105), and the large gear (103) and the small gear (104) are meshed with each other.

6. The turntable transmission system with vertical shaft input according to claim 5, characterized in that: The large gear (103) and the small gear (104) are both cylindrical gears.

7. The turntable transmission system with vertical shaft input according to claim 3, characterized in that: An extension portion is provided at one end of the input shaft assembly (105), the extension portion extends out of the housing (101), and an input shaft flange (108) is sleeved on the extension portion.

8. The turntable transmission system with vertical shaft input according to claim 1, characterized in that: The reduction box (500) is provided with an inertia brake.

9. The turntable transmission system with vertical shaft input according to claim 1, characterized in that: A sprocket is provided at the input end of the reduction box (500), and a chain guard (600) is provided between the sprocket and the output end of the winch (10).

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