A box seat support drum shaft winch

Abstract

The application discloses a box seat support drum shaft type winch, which is characterized in that a reduction box and a side seat are welded to be integrated as a main bearing seat of a drum shaft assembly, left and right bearing mechanisms and drum shaft gears are arranged in the drum shaft assembly, the left and right bearing mechanisms and the drum shaft gears are arranged to extend into the reduction box as an output shaft of the reduction box, and the winch is not provided with a connecting shaft between a large base, double bearing seats, drum shafts and reduction boxes, independent reduction boxes and a large shield and the like. The winch mainly comprises a side seat, a bearing seat assembly, a drum shaft, a drum, left and right bearing mechanisms, drum shaft gears, a gear transmission mechanism, upper and lower box bodies, a gear pump assembly, a driving equipment base, a support table, a main motor, an automatic sending and rotating device, a hydraulic disc brake device, a clutch and a noise isolation box. At present, under the condition that input power is certain, the winch has the characteristics of compact structure, small size, light weight and high efficiency, and can better meet the market demand.

Description

Technical Field

[0001] This invention belongs to the technical field of drilling fluid mixing devices for petroleum geological exploration drilling rigs, specifically relating to a box-supported drum shaft winch. Background Technology

[0002] The winch is an essential piece of equipment for drilling rigs. It is responsible for operations such as raising and lowering the drill string, running casing, controlling drill pressure during drilling, handling accidents, retrieving core samples, and testing oil. It also handles the raising and lowering of the derrick. A typical single-shaft winch consists of a winch frame (including the base), drum shaft assembly, left and right bearing seats, gearbox, pneumatic control system, lubrication system, various couplings, protective covers for each component, hydraulic disc brake device, automatic drill feeding device, and motor. Currently, existing single-shaft winches have the following problems: First, for large winches of 50dB (DB: refers to AC variable frequency winches) and above, the width is over 3.2 meters, which makes transportation difficult and prohibits rail transport, resulting in high transportation costs. Secondly, all levels of winches use a large base, double bearing seats, and an independent gearbox, resulting in a large structure, heavy winches, and high manufacturing costs. Thirdly, the gearbox and drum shaft in the winch are connected by a gear coupling, which has lower transmission efficiency compared to connections without gear couplings, and the gear coupling occupies a lot of space. Fourthly, due to the layout of the main motor, noise reduction measures cannot be implemented for the main motor. Summary of the Invention

[0003] The purpose of this invention is to provide a box-supported drum shaft winch, which effectively solves the problems of existing large single-shaft winches that transport excessively wide items, have high transportation costs, and are relatively heavy; in addition, it improves the transmission efficiency of the winch, and the main motor has an external space for noise reduction treatment.

[0004] The technical solution adopted in this invention is a winch with a box-type support for a drum shaft, including a side seat located at the bottom of the winch. The side seat is welded to one side of the lower housing of the gearbox assembly to support the drum shaft assembly. The other side of the lower housing is fixedly connected to the drive equipment base via a V-shaped connecting block. The side seat, the lower housing of the gearbox assembly, the drive equipment base, and the V-shaped connecting block are connected together to form the support seat of the winch of this invention. The gearbox assembly adopts a two-stage gear transmission. The side seat is designed with mounting seats for a pneumatic control box, a hydraulic disc brake device, and an integrated hydraulic station for installation. The side seat is also provided with a support platform to support the bearing housing assembly. The drive equipment base is designed with mounting seats for a main motor and an automatic drilling device for installation. A noise isolation box is also designed around the main motor and is installed on the drive equipment base.

[0005] The invention is further characterized in that,

[0006] One end of the roller shaft assembly is fixed to the support platform, and the other end is fixed to the lower housing.

[0007] The gearbox assembly is a split-type housing, consisting of an upper housing and a lower housing, which are connected by connecting bolts and nuts. The gearbox assembly contains a gear transmission mechanism and a gear pump assembly; the lower housing also serves as an oil reservoir for the lubrication system, and the gear transmission mechanism can drive the roller shaft.

[0008] The roller shaft assembly includes a roller shaft with a roller mounted in the middle. The roller shaft is fixedly connected to the support platform via a bearing housing assembly. A left bearing mechanism, a roller shaft gear, and a right bearing mechanism are sequentially installed at one end of the roller shaft connected to the lower housing. The roller shaft and roller shaft gear extend into the gearbox and mesh with the gear transmission mechanism to drive the output shaft of the gearbox. An instrument device is installed at the end of the roller shaft near the support platform, and a clutch is installed at the end of the roller shaft near the right bearing mechanism. The automatic drilling device is connected to the roller shaft via the clutch.

[0009] The main motor drives the gear transmission mechanism to rotate.

[0010] The gearbox assembly can be a single gearbox assembly or a dual gearbox assembly.

[0011] The side support has a rectangular frame structure.

[0012] The beneficial effects of this invention are as follows: The box-supported drum shaft winch of this invention has a small size, light weight, and simple transmission process. The winch width can be controlled within 3 meters, and the weight of winches of the same class can be reduced by 12-17%. The winch drum shaft and the gearbox share a single shaft and are connected without couplings, which can improve efficiency by 0.9-1.2% and also save on winch costs. There is space around the main motor for a noise isolation box. Therefore, the box-supported drum shaft winch has more advantages and advanced features. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of a box-supported drum shaft winch according to the present invention.

[0014] Figure 2 This is a top view schematic diagram of a box-supported drum shaft winch according to the present invention;

[0015] Figure 3 This is a right view of the gearbox assembly of a gearbox-supported drum shaft winch according to the present invention.

[0016] Figure 4 This is a schematic diagram of the upper and lower housings of the gearbox of a gearbox for a gearbox-supported drum shaft winch according to the present invention.

[0017] Figure 5This is a schematic diagram of the side seat of a box-supported drum shaft winch according to the present invention;

[0018] Figure 6 This is a schematic diagram of the drum shaft assembly of a box-supported drum shaft winch according to the present invention.

[0019] Figure 7 This is a schematic diagram of the drive equipment base and V-shaped connecting block of a box-supported drum shaft winch according to the present invention.

[0020] In the diagram: 1. Side seat, 2. Drum shaft assembly, 3. Gearbox assembly, 4. Pin, 5. V-shaped connecting block, 6. Drive equipment base, 7. Support platform, 8. Bearing housing assembly, 9. Drum shaft, 10. Drum, 11. Left bearing mechanism, 12. Drum shaft gear, 13. Right bearing mechanism, 14. Gear transmission mechanism, 15. Upper housing, 16. Lower housing, 17. Connecting bolts and nuts, 18. Gear pump assembly, 20. Main motor, 21. Automatic drilling device, 22. Instrumentation device, 23. Coupling, 24. Pneumatic control box, 25. Hydraulic disc brake device, 26. Integrated hydraulic station, 27. Clutch, 28. Noise isolation box. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. For example... Figures 1 to 7 As shown,

[0022] A type of winch with a box-supported drum shaft according to the present invention includes a side seat 1 disposed at the bottom of the winch. The side seat 1 is welded to one side of the lower box 16 of the gearbox assembly 3 to support the drum shaft assembly 2. The other side of the lower box 16 is fixedly connected to the drive equipment base 6 via a V-shaped connecting block 5. The male cone portion of the V-shaped connecting block 5 is welded to the lower box 16, and the female cone portion of the V-shaped connecting block 5 is welded to the drive equipment base 6. The male and female cone portions are connected together by a pin (e.g., ...). Figure 7 (As shown). The support base of the winch of this invention is composed of four parts: the side seat 1, the lower housing of the gearbox assembly 3, the drive equipment base 6, and the V-shaped connecting block 5. The gearbox assembly adopts a two-stage gear transmission. The side seat 1 is provided with mounting bases for the pneumatic control box 24, the hydraulic disc brake device 25, and the integrated hydraulic station 26 for installation; the side seat 1 is also provided with a support platform 7; the support platform 7 is used to support the bearing housing assembly 8; the drive equipment base 6 is provided with mounting bases for the main motor 20 and the automatic drilling device 21 for installation, and a noise isolation box 28 is designed around the main motor 20, which is installed on the drive equipment base 6;

[0023] One end of the roller shaft assembly 2 is fixed on the support platform 7, and the other end is fixed on the lower housing 16.

[0024] The gearbox assembly 3 is a split-type housing, consisting of an upper housing 15 and a lower housing 16, which are connected by connecting bolts and nuts 17. The gearbox assembly 3 houses a gear transmission mechanism 14 and a gear pump assembly 18. The lower housing 16 also serves as an oil reservoir for the lubrication system. The gear transmission mechanism 14 drives the roller shaft 9. The roller shaft gear 12 extends into the gearbox, serving as the gearbox output shaft.

[0025] The roller shaft assembly 2 includes a roller shaft 9, with a roller 10 mounted in the middle of the roller shaft 9. The roller shaft 9 is fixedly connected to the support platform 7 via a bearing housing assembly 8. A left bearing mechanism 11, a roller shaft gear 12, and a right bearing mechanism 13 are sequentially mounted on one end of the roller shaft 9 connected to the lower housing 16. The roller shaft gear 12 extends into the reduction gearbox and meshes with the gear transmission mechanism 14 to drive the output shaft of the reduction gearbox. An instrument device 22 is mounted on the end of the roller shaft 9 near the support platform 7, and a clutch 27 is mounted on the end of the roller shaft 9 near the right bearing mechanism 13. The automatic drilling device 21 is connected to the roller shaft 9 via the clutch 27. The left bearing mechanism 11 and the right bearing mechanism 13 also serve to support the roller shaft 9.

[0026] The main motor 20 drives the gear transmission mechanism 14 to rotate.

[0027] The gearbox assembly 3 can be a single gearbox assembly or a double gearbox assembly.

[0028] Side seat 1 is a rectangular frame structure.

[0029] V-shaped connecting block 5 includes a male block and a female block that fit together. The male block is welded to the drive equipment base 6, and the female block is welded to the lower housing 16. The male and female blocks in V-shaped connecting block 5 are connected together by a pin 4 (that is, the drive equipment base 6 and the lower housing 16 are connected together).

[0030] The output shaft in the gear transmission mechanism 14 is a roller shaft 9. Instead of designing a separate output shaft, the transmission gear is mounted on the roller shaft 9 and directly drives the roller shaft 9.

[0031] The transmission process of this invention is as follows: the main motor 20 drives the gear transmission mechanism 14, which in turn drives the drum shaft 9, which in turn drives the drum 10, thus completing the transmission process. The automatic drilling device 21 directly drives the drum shaft 9 via the clutch 27, which in turn drives the drum 10, completing the transmission process. Through the implementation of this invention, the requirements of drilling rig operations can be well met.

[0032] This invention uses a single-bearing support platform welded to a side seat and a gearbox as a single unit as the main load-bearing base of the winch. The drum shaft is supported and fixed by the single-bearing support and the gearbox. The drum shaft is designed with left and right bearing mechanisms and gears that extend into the gearbox, serving as the output shaft. This eliminates the need for a large base, two bearing seats, a coupling between the drum shaft and the gearbox, an independent gearbox, and a large protective cover. A noise isolation box is also provided around the main motor, enclosing the entire motor and providing a noise isolation channel. For all single-shaft drilling winches, under the conditions of the same class of winch and a fixed input power, the winch of this invention has a smaller size, lighter weight, and improved transmission efficiency. The main motor also has space for noise reduction design. The smaller size of the winch makes transportation more convenient, and the lighter weight reduces the cost. The box-supported drum shaft winch features a compact structure, light weight, and high efficiency, better meeting market demands.

[0033] Example

[0034] This invention is in contrast to existing 70dB, 80dB, and 90dB single-shaft winches on the market.

[0035] ① The width of the winch of this invention is within 3 meters, while the width of large winches on the market is more than 3.4 meters.

[0036] ② The weight of the winch can be reduced by 12% to 17% compared to winches of the same class. For example, the original weight of the Gemstone Machinery 80DB winch is 48 tons, while the weight of the winch using this invention is 42 tons.

[0037] ③ The transmission efficiency of the winch can be increased by 0.9% to 1.2% compared with the same level of winch (based on theoretical analysis and calculation).

[0038] ④ The noise of the winch of this invention is effectively reduced. Compared with the existing 70dB, 80dB and 90dB single-shaft winches on the market, the noise can be reduced by (8~10)dB.

Claims

1. A box-supported drum shaft type winch, characterized in that, The winch includes a side seat (1) located at the bottom of the winch. The side seat (1) is welded to one side of the lower housing (16) of the gearbox assembly (3) to support the drum shaft assembly (2). The other side of the lower housing (16) is fixedly connected to the drive equipment base (6) via a V-shaped connecting block (5). The side seat (1), the lower housing (16) of the gearbox assembly (3), the drive equipment base (6), and the V-shaped connecting block (5) are connected together to form the winch support base. The system adopts a two-stage gear transmission; the side seat (1) is respectively designed with mounting seats for the pneumatic control box (24), the hydraulic disc brake device (25), and the integrated hydraulic station (26) for installation; the side seat (1) is also provided with a support platform (7); the support platform (7) is used to support the bearing housing assembly (8); the drive equipment base (6) is respectively designed with mounting seats for the main motor (20) and the automatic drilling device (21) for installation, and a noise isolation box (28) is also designed around the main motor (20); One end of the roller shaft assembly (2) is fixed on the support platform (7), and the other end is fixed on the lower housing (16); The roller shaft assembly (2) includes a roller shaft (9), a roller (10) is installed in the middle of the roller shaft (9), the roller shaft (9) is fixedly connected to the support platform (7) through the bearing seat assembly (8), and a left bearing mechanism (11), a roller shaft gear (12) and a right bearing mechanism (13) are installed sequentially at one end of the roller shaft (9) connected to the lower housing (16); the roller shaft (9) and the roller shaft gear (12) extend into the gearbox and mesh with the gear transmission mechanism (14) to form a gearbox output shaft transmission; an instrument device (22) is installed at the end of the roller shaft (9) near the support platform (7), and a clutch (27) is installed at the end of the roller shaft (9) near the right bearing mechanism (13); the automatic drilling device (21) is connected to the roller shaft (9) through the clutch (27); The male cone portion of the V-shaped connecting block (5) is welded to the lower housing (16), and the female cone portion of the V-shaped connecting block (5) is welded to the drive equipment base (6). The male and female cone portions are connected together by a pin.

2. The box-supported drum shaft type winch according to claim 1, characterized in that, The gearbox assembly (3) is a split-type housing, consisting of an upper housing (15) and a lower housing (16). The upper housing (15) and the lower housing (16) are connected by connecting bolts and nuts (17). The gearbox assembly (3) is equipped with a gear transmission mechanism (14) and a gear pump assembly (18). The lower housing (16) also serves as an oil reservoir for the lubrication system. The gear transmission mechanism (14) can drive the roller shaft (9) for transmission.

3. A box-supported drum shaft type winch according to claim 2, characterized in that, The main motor (20) drives the gear transmission mechanism (14) to rotate.

4. A box-supported drum shaft type winch according to claim 1, characterized in that, The gearbox assembly (3) is a single gearbox assembly or a double gearbox assembly.

5. A box-supported drum shaft type winch according to claim 1, characterized in that, The side seat (1) is a rectangular frame structure.

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