A rear-mounted single-motor, double-sided belt-driven five-cylinder drilling pump unit

Abstract

This utility model relates to the field of drilling equipment technology, and in particular discloses a rear-mounted single-motor, double-sided belt-driven five-cylinder drilling pump set, including a motor, a five-cylinder drilling pump, and a base. Both the motor and the five-cylinder drilling pump are mounted on the base, with the motor located at the rear end of the pump. The motor has an output pulley, and the pump has an input pulley. A belt connects the output and input pulleys. This utility model features the motor and pump arranged side-by-side on the base, reducing the width and weight of the entire skid. The belt drive between the motor and pump is lighter than a gearbox. The double-sided belt input mode reduces the single-sided input torque of the pump crankshaft, improving the pump's stability and lifespan. This new pump set is small in size and lightweight, making it easier to transport and operate at different construction sites.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and in particular to a five-cylinder drilling pump set with a rear-mounted single motor and double-sided belt drive. Background Technology

[0002] Drilling pumps are primarily used to inject drilling fluid with a certain displacement, pressure, viscosity, and density into the wellbore to remove cuttings, clean the wellbore, prevent stuck pipe, balance formation pressure, prevent well collapse, blowouts, and lost circulation, improve drilling efficiency, and cool and lubricate the drill bit and tools. Currently, most drilling rigs primarily use three-cylinder drilling pumps. With the development of modern drilling technologies such as deep / ultra-deep well drilling and high-pressure jet drilling, high power, large displacement, high pump pressure, multi-cylinder operation, low pressure fluctuation, and good portability and reliability have become the main research directions for drilling pumps (pump sets).

[0003] Although high-power five-cylinder drilling pumps, such as 2200 / 3000 horsepower models, have emerged on the market, offering significant improvements in displacement, pressure fluctuation, operational stability, and reliability, their weight and size are still considerably larger than traditional three-cylinder pumps. Currently, most five-cylinder drilling pump sets on the market employ either a dual-drive motor dual-gearbox transmission or a single-motor single-side gearbox transmission design. These designs either result in excessively large pump sets and weight or excessively high crankshaft input torque, necessitating disassembly for later transport. Otherwise, the pump set's size and weight would not meet road transport requirements, and the operating, installation, and maintenance costs are also higher.

[0004] Therefore, it is necessary to propose an improvement to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems in the prior art by providing a rear-mounted single-motor double-sided belt-driven five-cylinder drilling pump set, which solves the problems of difficult transportation and high operating costs caused by the excessive size of the equipment in the prior art.

[0006] The technical solution of this utility model is: A rear-mounted single-motor double-sided belt-driven five-cylinder drilling pump set includes a motor, a five-cylinder drilling pump, and a base. Both the motor and the five-cylinder drilling pump are mounted on the base. The motor is located at the rear end of the five-cylinder drilling pump. The motor is equipped with an output pulley, and the five-cylinder drilling pump is equipped with an input pulley. A belt is provided between the output pulley and the input pulley.

[0007] As a preferred technical solution, the motor is provided with output pulleys on both the left and right sides, and the five-cylinder drilling pump is provided with input pulleys on both the left and right sides, with the positions of the two output pulleys corresponding to the two input pulleys.

[0008] As a preferred technical solution, the motor is provided with a motor output shaft, both sides of which are provided with external splines, and the inner side of the output pulley is provided with an internal spline, the external spline of the output shaft meshing with the internal spline of the output pulley.

[0009] As a preferred technical solution, the five-cylinder drilling pump is provided with a drilling pump crankshaft, both sides of which are provided with external splines, and the inner side of the input pulley is provided with an internal spline, and the external spline of the crankshaft meshes with the internal spline of the input pulley.

[0010] As a preferred technical solution, the output pulley is provided with an output pulley belt groove, the input pulley is provided with an input pulley belt groove, and the belt is installed in the output pulley belt groove and the input pulley belt groove.

[0011] As a preferred technical solution, the output pulley is provided with an output pulley pressure plate groove, and an output pulley pressure plate is provided in the output pulley pressure plate groove.

[0012] As a preferred technical solution, the input pulley is provided with an input pulley pressure plate groove, and the input pulley pressure plate groove is provided with an input belt pressure plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model discloses a rear-mounted single-motor, double-sided belt-driven five-cylinder drilling pump unit. It comprises a motor, a five-cylinder drilling pump, and a base. The motor and the five-cylinder drilling pump are arranged side-by-side on the base, reducing the width and weight of the entire skid. The belt drive between the motor and the five-cylinder drilling pump is lighter than a gearbox. The double-sided power input mode between the motor and the five-cylinder drilling pump reduces the single-sided input torque of the drilling pump crankshaft, improving the stability and lifespan of the drilling pump. This new pump unit is small in size and light in weight, making it easier to transport and operate at different construction sites. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the five-cylinder drilling pump unit driven by a rear-mounted single motor and double-sided belt pulleys according to this utility model. Figure 2 This is a schematic diagram of the input pulley structure of this utility model; Figure 3 This is a schematic diagram of the structure of the five-cylinder drilling pump of this utility model; Figure 4 This is a schematic diagram of the output pulley of this utility model; Figure 5 This is a schematic diagram of the structure of the motor of this utility model.

[0015] The components are as follows: 1. Base; 2. Motor; 3. Output pulley; 4. Output pulley pressure plate; 5. Belt; 6. Input pulley; 7. Pressure plate bolt; 8. Input belt pressure plate; 9. Five-cylinder drilling pump; 10. Input pulley belt groove; 11. Input pulley internal spline; 12. Input pulley pressure plate groove; 13. Drilling pump crankshaft; 14. Crankshaft external spline; 15. Bolt hole; 16. Output pulley belt groove; 17. Output pulley internal spline; 18. Output pulley pressure plate groove; 19. Motor output shaft; 20. Output shaft external spline. Detailed Implementation

[0016] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0017] like Figure 1-2 The diagram shown is a schematic representation of the overall structure of the rear-mounted single-motor double-sided belt-driven five-cylinder drilling pump unit of this utility model.

[0018] The rear-mounted single-motor double-sided belt-driven five-cylinder drilling pump assembly of this embodiment includes a motor 2, a five-cylinder drilling pump 9, and a base 1. The motor 2 and the five-cylinder drilling pump 9 are fixed side by side on the base 1. The motor 2 is fixed to the rear side of the five-cylinder drilling pump 9, which reduces the width and weight of the entire skid. A belt 5 is installed between the motor 2 and the five-cylinder drilling pump 9. The motor 2 transmits power to the five-cylinder drilling pump through the belt 5. Compared with the gearbox transmission structure in the prior art, it is lighter and reduces the difficulty of moving the entire skid.

[0019] The motor 2 is equipped with a motor output shaft 19. Output pulleys 3 are installed on both the left and right sides of the motor output shaft 19. The output pulleys 3 have internal splines 17. Both ends of the motor output shaft 19 have external splines 20. The internal splines 17 and external splines 20 of the output pulleys mesh with each other. The side of the output pulley 3 has an output pulley pressure plate groove 18. An output pulley pressure plate 4 is installed in the output pulley pressure plate groove 18 and is fixed to the external splines 20 of the output shaft of the motor output shaft 19. The outer annular surface of the output pulley 3 has an output pulley belt groove 16 for the installation of the belt 5.

[0020] A drilling pump crankshaft 13 is installed inside the five-cylinder drilling pump 9. Input pulleys 6 are installed on both the left and right sides of the drilling pump crankshaft 13. The input pulleys 6 have internal splines 11. The left and right ends of the drilling pump crankshaft 13 are provided with external splines 14. The internal splines 11 of the input pulleys mesh with the external splines 14 of the crankshafts. The side of the input pulley 6 has an input pulley pressure plate groove 12. An input belt pressure plate 8 is installed in the input pulley pressure plate 12 and is fixed on the drilling pump crankshaft 13. An input pulley belt groove 10 is provided on the outer annular surface of the input pulley 6. The belt 5 is installed in the input pulley belt groove 10 and the output pulley belt groove 16.

[0021] The motor 2 and the five-cylinder drilling pump 9 of this utility model adopt a belt drive method, and the transmission mechanism mainly consists of two pulleys, which is lighter than gearbox transmission. The motor 2 and the five-cylinder drilling pump 9 adopt a dual-side power output and input mode, which reduces the single-side input torque of the drilling pump crankshaft, improves the stability and life of the drilling pump, and the whole set of equipment is safe, reliable, neat and beautiful.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A rear-mounted single-motor, double-sided belt-driven five-cylinder drilling pump set, characterized in that, Includes a motor (2), a five-cylinder drilling pump (9) and a base (1). The motor (2) and the five-cylinder drilling pump (9) are both mounted on the base (1). The motor (2) is located at the rear end of the five-cylinder drilling pump (9). The motor (2) is equipped with an output pulley (3), and the five-cylinder drilling pump (9) is equipped with an input pulley (6). A belt (5) is provided between the output pulley (3) and the input pulley (6).

2. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 1, characterized in that, The motor (2) is provided with output pulleys (3) on both the left and right sides, and the five-cylinder drilling pump (9) is provided with input pulleys (6) on both the left and right sides. The positions of the two output pulleys (3) and the two input pulleys (6) are corresponding.

3. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 2, characterized in that, The motor (2) is provided with a motor output shaft (19), and both sides of the motor output shaft (19) are provided with external splines (20). The inner side of the output pulley (3) is provided with an internal spline (17), and the external spline (20) of the output shaft meshes with the internal spline (17) of the output pulley.

4. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 2, characterized in that, The five-cylinder drilling pump (9) is provided with a drilling pump crankshaft (13), and both sides of the drilling pump crankshaft (13) are provided with external splines (14). The inner side of the input pulley (6) is provided with an input pulley internal spline (11), and the external spline (14) of the crankshaft meshes with the internal spline (11) of the input pulley.

5. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 1, characterized in that, The output pulley (3) is provided with an output pulley belt groove (16), and the input pulley (6) is provided with an input pulley belt groove (10). The belt (5) is installed in the output pulley belt groove (16) and the input pulley belt groove (10).

6. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 1, characterized in that, The output pulley (3) is provided with an output pulley pressure plate groove (18), and an output pulley pressure plate (4) is provided inside the output pulley pressure plate groove (18).

7. The five-cylinder drilling pump set with rear-mounted single motor and double-sided belt drive according to claim 1, characterized in that, The input pulley (6) is provided with an input pulley pressure plate groove (12), and the input pulley pressure plate groove (12) is provided with an input belt pressure plate (8).

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